WO2006054811A1 - System and device for controlling traffic signal for emergency vehicles - Google Patents
System and device for controlling traffic signal for emergency vehicles Download PDFInfo
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- WO2006054811A1 WO2006054811A1 PCT/KR2004/003159 KR2004003159W WO2006054811A1 WO 2006054811 A1 WO2006054811 A1 WO 2006054811A1 KR 2004003159 W KR2004003159 W KR 2004003159W WO 2006054811 A1 WO2006054811 A1 WO 2006054811A1
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- Prior art keywords
- emergency
- vehicle
- signal
- information
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/087—Override of traffic control, e.g. by signal transmitted by an emergency vehicle
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/075—Ramp control
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
Abstract
Disclosed are a traffic signal light control system for an-emergency vehicle enabling an emergency vehicle to drive swiftly and a general vehicle to drive smoothly, and a traffic light controller for the emergency vehicle used for the system. The traffic signal light controller for an emergency vehicle in accordance with the present invention comprises an anti-disaster for generating and outputting an emergency situation message including controller identification information for each of traffic signal controllers for the emergency vehicle installed on the road through which an emergency vehicle passes and vehicle movement information when an emergency situation occurrence signal is inputted; and a traffic signal controller for the emergency vehicle for controlling an emergency signal light including a warning light and a direction signal light according to the emergency situation message inputted from the anti-disaster center.
Description
SYSTEM AND DEVICE FOR CONTROLLING TRAFFIC SIGNAL FOR
EMERGENCY VEHICLES
TECHNICAL FIELD The present invention relates to a traffic light, and more particularly, to a traffic light control system for an emergency vehicle enabling an emergency vehicle to drive swiftly and a general vehicle to drive smoothly, and a traffic light controller for the emergency vehicle used for the system.
BACKGROUND ART
Recently, various anti-disaster systems such as an automatic security system for protecting individual property and life, an automatic monitoring system for monitoring a disaster such as fire or gas leak, or the same, have been introduced. For example, the automatic monitoring system includes sensors installed in a specific building for sensing fire, gas leak, and the like, a transmitter for receiving operation information of the sensors, and an anti- disaster center connected to a plurality of transmitters installed in a specific region through wired/wireless networks. The anti-disaster center contacts government and public offices such as a fire station, a police station and
a hospital when a fire breaks out in a specific building, for example. The contacted government and public offices mobilize an emergency vehicle, for example, a fire car, a police car, and an ambulance to a reported fire place to put out the fire, transport victims to the hospital, and determine the cause of the fire.
However, no convention system and method exist for the automatic control of traffic to enable the emergency vehicle to drive swiftly when the emergency vehicle responds to a call. Generally, in most nations, there are laws stating that general vehicles must yield their lane when they are approached by or notice emergency vehicles present within a short distance. Accordingly, although the general vehicles have to change their lane to facilitate swift passage of the emergency vehicles, it is not easy for drivers to change lanes on a congested road. In this case, the emergency vehicles are forced to drive slowly. Especially, in congested roads or at traffic-signal controlled intersections, the emergency vehicles are forced to stop and wait for the congestion to dissipate. As such, response time to emergencies is increased and damage to property and life, at the location of the fire, is increased. Meanwhile, if the emergency vehicle simply disregards the traffic signal, serious accidents or exacerbated traffic conditions may occur.
Accordingly, in the situation that there is not a traffic control, a road traffic act, and related equipment for enabling the emergency vehicles to drive swiftly, there is a problem that the efficiency of various emergency services is inevitably and sharply reduced.
DISCLOSURE OF THE INVENTION
The object of the present invention is to provide a technology enabling the emergency vehicles to drive swiftly and the general vehicles to drive smoothly.
Another object of the present invention is to provide a technology capable of maintaining a signal system harmonized with a general traffic signal controller controlling a pedestrian signal light or a driving signal light. Yet another object of the present invention is to provide a technology capable of operating an emergency signal light by communicating with an emergency vehicle.
Yet another object of the present invention is to provide a technology capable of managing driving information of an emergency vehicle. . .
Yet another object of the present invention is to provide a technology capable of informing a general vehicle driver and a pedestrian of the approach of an emergency vehicle using a sound.
Yet another object of the present invention is to provide a traffic signal controller for an emergency vehicle that can be operated manually.
According to an aspect of the present invention, there is provided a traffic signal light control system for an emergency vehicle, including an anti-disaster center and a traffic signal controller for the emergency vehicle, generally. The anti-disaster center maintains information on each of traffic signal controllers for the emergency vehicles, installed on a road through which the emergency vehicle passes when an emergency situation occurrence signal is generated. Then, the anti-disaster center generates and outputs an emergency situation message including controller identification information on each of the traffic signal controllers for the emergency vehicle and vehicle movement path information. The traffic signal controller for the emergency vehicle controls an emergency signal light including a warning light and a direction signal light according to an emergency situation message inputted from the anti-disaster center.
Here, the warning light means a signal light indicating that an emergency situation has occurred, and the direction signal light means a signal light indicating a traveling direction of the emergency vehicle. The warning light and direction signal light can be installed integrally with or
separately from the driving signal light in the art. Meanwhile, the traffic signal controller for the emergency vehicle can be installed integrally with or separately from a general traffic signal controller for controlling a pedestrian signal light or a driving signal light.
According to the aspect of the present invention, a general vehicle driver can be prepared in order that the emergency vehicle drives smoothly in the case that the emergency traffic signal light is operated. Accordingly, it is possible for the emergency vehicle to drive swiftly and for the general vehicle to drive smoothly.
According to another aspect of the present invention, the traffic signal controller for the emergency vehicle outputs a signal change request message to a general traffic signal controller for controlling a pedestrian signal light or a driving signal light when an emergency situation message is inputted from the anti-disaster center.
According to the aspect of the present invention, the traffic signal controller for the emergency vehicle should have a signal system harmonized with a general traffic signal controller for controlling the pedestrian signal light or the driving signal light when the emergency situation occurs. To do this, the general traffic signal controller in the art can additionally include a communication circuit and a data line in order that the
controller in the art is interlocked to the traffic signal controller for the emergency vehicle in accordance with the present invention.
According to an aspect of the present invention, the general traffic signal controller controls a red color signal to be displayed on the pedestrian signal light or driving signal light when the traffic signal controller for the emergency vehicle receives an emergency situation message outputted from the anti-disaster center. Meanwhile, according to an embodiment of the present invention, in the case that the emergency vehicle passes through a road on which the traffic signal controller for the emergency vehicle is installed, the anti-disaster center can inform the corresponding traffic signal controller for the emergency vehicle of an emergency vehicle passing message. In this case, the traffic signal controller for the emergency vehicle releases control of the emergency signal light, and the general traffic signal controller normally controls the pedestrian signal light or driving signal light.
According to another aspect of the present invention, the traffic signal light controller for the emergency vehicle further includes a third communication unit for transmitting and receiving a radio signal to and from the emergency vehicle; and a memory unit for storing an
emergency situation message inputted from the emergency signal process unit. In this case, if vehicle identification information is inputted from the emergency vehicle through the third communication unit, the emergency signal process unit identifies whether an emergency situation message corresponding to the inputted vehicle identification information is stored in the memory unit. In the case that the emergency situation message is stored in the memory unit as a result of the identification, the emergency signal process unit generates emergency signal light control information on the basis of the emergency situation message stored in the memory unit and outputs the emergency signal light control information to an emergency signal light driver. According to the aspect of the present invention, the traffic signal controller for the emergency vehicle operates the emergency signal light in the case that the emergency vehicle enters into the road on which the corresponding controller is installed. Preferably, the emergency vehicle should have a radio communication system capable of communicating with the traffic signal controller of the emergency vehicle and the anti-disaster center in accordance with the present invention. However, since a variety of radio communication equipment is mounted on vehicles prior
to initial sale, it can be embodied without limit to distribute vehicles having the radio communication system.
According to another aspect of the present invention, the traffic signal controller for the emergency vehicle further includes an emergency vehicle approach process unit for comparing GPS reference information of the emergency vehicle inputted through the third communication unit and GPS reference information of the controller, and calculating and outputting a movement level and a movement direction of the emergency vehicle when the emergency situation message identification signal for the emergency vehicle is inputted from the emergency signal process unit. In this case, the emergency signal process unit generates the emergency signal light control information and outputs the emergency signal light control information to the emergency signal light driver on the basis of movement level and movement direction information of the emergency vehicle inputted from the emergency vehicle approach process unit and emergency situation message stored in the memory unit. According to the aspect of the present invention, the traffic signal controller for the emergency vehicle automatically identifies whether the emergency vehicle passes through the road on which the corresponding controller is installed. Accordingly, the traffic signal controller for the emergency vehicle can automatically
release control of the emergency signal light without receiving a driving release message of the emergency signal light from the anti-disaster center. In a preferred embodiment of the present invention, the emergency vehicle should have a GPS transceiver apparatus.
According to another aspect of the present invention, the traffic signal controller for the emergency vehicle may comprise a video process unit for compressing a video signal inputted via a camera or outputting the video signal after processing it. In this case, the emergency signal process unit generates vehicle operational information on the basis of video data inputted from the video process unit, the movement level and movement direction information of the emergency vehicle inputted from the emergency vehicle approach process unit, and emergency vehicle identification information, and outputs the vehicle operational information to the anti-disaster center through the first communication unit.
According to the aspect of the present invention, the anti-disaster center receives vehicle operational information including a moving picture and controller passing time of the emergency vehicle from the traffic signal controller for the emergency vehicle and stores the vehicle operational information, so that it can more stably manage the operational information of the emergency vehicle.
According to another aspect of the present invention, the traffic signal controller for the emergency vehicle can further comprise a warning sound output unit including a warning sound memory, a warning sound regeneration unit, and a speaker. In this case, the emergency signal process unit outputs the warning sound output control signal to the warning sound output unit on the basis of movement level information of the emergency vehicle inputted from the emergency vehicle approach process unit when the emergency vehicle is within a predetermined distance.
According to the aspect of the present invention, the traffic signal controller for the emergency vehicle informs the surroundings area that the emergency vehicle enters into the road, so that pedestrians as well as general vehicle drivers can be prepared in order that the emergency vehicle can drive smoothly.
According to another aspect of the present invention, the traffic signal controller for the emergency vehicle can further comprise an operational unit for receiving a user operational instruction and a display unit for displaying a menu and an operational state. In this case, the emergency signal process unit generates and outputs emergency signal light control information according to an operational instruction inputted from the operational unit.
According to the aspect of the present invention, the traffic signal controller for the emergency vehicle can be manually operated so that the emergency vehicle can drive smoothly even when the controller cannot communicate with the anti-disaster center under unavoidable circumstances.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features, aspects, and advantages of preferred embodiments of the present invention will be more fully described in the following detailed description, taken accompanying drawings. In the drawings:
FIG. 1 is a schematic block diagram showing the overall structure of a traffic signal light control system for an emergency vehicle in accordance with the present invention. FIG. 2 is an exemplary view showing an emergency signal light used in the present invention.
FIG. 3 is a block diagram showing a construction of a traffic signal light controller for an emergency vehicle in accordance with an embodiment of the present invention. FIG. 4 is a block diagram showing a construction of an anti-disaster center in accordance with an embodiment of the present invention.
FIG. 5 is a flow chart showing operation of a traffic signal light controller for an emergency vehicle in accordance with an embodiment of the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, exemplary embodiments of the present invention will be described below in more detail with reference to the accompanying drawings.
FIG. 1 is a schematic block diagram showing the overall structure of a traffic signal light control system for an emergency vehicle in accordance with the present invention.
As shown in FIG. 1, the traffic signal light control system for an emergency vehicle generally includes an anti- disaster center 400, and traffic signal controllers for the emergency vehicle 600-1, 600-2, ...600-n. The anti-disaster center 400 is connected to the traffic signal controllers for the emergency vehicle 600-1, 600-2,...600-n through a wired or wireless network 500. Also, in accordance with an embodiment of the present invention, the anti-disaster center 400 can be connected to transmitters 50-1, ...50-n connected to sensors installed in a specific building for sensing a fire, a gas leak and the like through a wired or wireless network 500.
It is preferable that the transmitters 50-1,...50-n include a plurality of input ports for connecting a plurality of sensors, a memory, a microcomputer, and a communication unit. It is preferable that the transmitters 50-1,...50-n store unique identification codes in the memory
in order that the anti-disaster center 400 may recognize the position of a subscriber where an emergency situation occurrence signal is generated when the emergency situation occurrence signal such as a fire, a gas leakage and the like is inputted from the sensors through the input port. Here, the identification codes of the transmitters are ones encoded of a series of numbers that are divided into a metropolitan city, a district, a village, and a street.
In an embodiment of the present invention, the anti- disaster center 400 searches for information on the traffic signal controller for each emergency vehicle installed in a road through which the emergency vehicle passes when the emergency situation occurrence signal is inputted via the transmitters 50-1,...50-n. The anti-disaster center 400 in accordance with the present invention has various methods for searching for information on the traffic signal controllers for each emergency vehicle installed on the road through which the emergency vehicle passes.
In an embodiment of the present invention, the anti- disaster center 400 establishes a movement path between a reported emergency situation occurrence place and a hospital 100, a police station 200 or a fire station 300 adjacent to the reported emergency situation occurrence place through position information on the reported emergency situation occurrence place and the hospital 100, the police station
200 or the fire station adjacent to the reported emergency situation occurrence place inputted from a manager, and then searches for information on the traffic signal controllers for each traffic signal controller for the emergency vehicle installed on a road of the established movement path.
In another embodiment of the present invention, the anti-disaster center 400 can automatically search for position information on the reported emergency situation occurrence location and the hospital 100, the police station 200 or the fire station 300 adjacent to the reported emergency situation occurrence location when the emergency situation occurrence signal is inputted. In this case, the anti-disaster center 400 establishes a movement path between the reported emergency situation occurrence place and the hospital 100, the police station 200 or the fire station 300 adjacent to the reported emergency situation occurrence place using the position information, and then can search for information on each of the traffic signal controllers for the emergency vehicle installed on the road in the established movement path.
In yet another embodiment of the present invention, the anti-disaster center 400 can receive the movement path from a fire engine, a police car or an ambulance that is in transit to the reported emergency situation occurrence place. In this case, the anti-disaster center 400 can search for
information on each of the traffic signal controllers of the emergency vehicle installed on the road of the movement path inputted from the fire car, the police car or the emergency vehicle that is in transit to the reported emergency situation occurrence place.
Afterwards, the anti-disaster center 400 generates an emergency situation message including the controller identification information for the traffic signal controllers of each emergency vehicle installed on a road through which the emergency vehicle will pass and vehicle movement path information, and outputs the generated emergency situation message to the traffic signal controllers 600-1, 600-2,...600-n.
Meanwhile, the anti-disaster center 400 can automatically contact the hospital 100, the police station
200 and the fire station 300 near the reported emergency situation occurrence place and request the emergency vehicle.
The wired or wireless network 500 supports communication between apparatuses, including a base transceiver system BTS for converting a signal format to adapt the signal to the wired and wireless links, a base station controller BSC for performing information collection, monitoring and management of a base transceiver system BTS operation, a mobile switching center MSC interlocked to the BTC and a fixed network (PSTN, Internet) for providing a
mobile communication subscriber with a circuit switching service, and the like.
The traffic signal controllers for the emergency vehicle 600-1, 600-2,...600-n control emergency signal lights 700-1, 700-2,...700-n in accordance with an emergency situation message inputted from the anti-disaster center 400. In an embodiment of the present invention, the traffic signal controllers for the emergency vehicle 600-1, 600- 2,...600-n are interlocked with a general traffic signal controller for controlling a pedestrian signal light or a driving signal light when an emergency situation is generated and can manage a signal system for enabling the emergency vehicle to drive swiftly and the general vehicle to drive smoothly. The emergency signal lights 700-1, 700-2, ...700-n as described by the applicant of the present invention, inform a driver of the general vehicle of an entry and a traveling direction of the emergency vehicle.
FIG. 2 is an exemplary view showing an emergency signal light used in the present invention.
As shown in FIG. 2, the existing road is equipped with only a driving signal light 10 indicating a general signal for the general vehicle, a street crossing for the pedestrian security, and a pedestrian signal light 20 indicating a pedestrian signal. However, in accordance with
the present invention, the road is further equipped with an emergency signal light 30 for a swift driving of the emergency vehicle and a means such as camera 40.
In an embodiment of the present invention, the emergency signal light 30 may include a warning light indicating an emergency situation or a direction signal light indicating a traveling direction of the emergency vehicle, for example, right turn or left turn. In an embodiment of the present invention, the warning light and direction signal light can be embodied by an LED. The warning light and direction signal light can be installed integrally with or separately from the driving signal light 10. The camera 40 is a known apparatus for capturing an image of a subject, and is embodied by an analog NTSC camera in an embodiment.
According to the present invention, it can be easy to adopt a signal regulation as a road traffic law, where a signal of the emergency signal light 30 is prior to the driving signal light 10 and pedestrian signal light 20 and an enforcement systems where a general vehicle disregarding the signal of the emergency signal light 30 may be fined for signal violation. If such signal regulation and enforcement systems are adopted as the road traffic law, the swift transit of the emergency vehicle is further ensured. Furthermore, if each road sets an emergency lane for the
emergency vehicle separate from general lanes such as a bus- dedicated lane, it can be more efficiently possible that the emergency vehicle drives swiftly and the general vehicle drives smoothly. FIG. 3 is a block diagram showing a construction of a traffic signal light controller for an emergency vehicle in accordance with an embodiment of the present invention.
As shown in FIG. 3, in accordance with an embodiment of the present invention, a traffic signal light controller 600 for the emergency vehicle includes a first communication unit 610, a second communication unit 615, a memory unit 620, an emergency signal light driver 630, a warning sound output unit 640, a video process unit 650, a controller 660, an operating unit 670, and a display unit 680. The first communication unit 610 transmits and receives data signals to and from the anti-disaster center 400, which can be embodied by including a radio antenna and a radio communication circuit used to communicate with the BTS in an embodiment of the present invention. The first communication unit 610 can be embodied with radio communication circuits based on the CDMA scheme of various other standards. The first communication unit 610 can also be embodied with radio communication circuits of mobile communication schemes appearing in the future as well as existing schemes such as cellular, GSM, and W-CDMA schemes.
The second communication unit 615 transmits and receives data signals to and from a general traffic signal controller 800 which controls the pedestrian signal light or driving signal light, which can be embodied with an Ethernet LAN card known in the art in an embodiment of the present invention.
The memory unit 620 stores data and program codes, which can be embodied with a ' flash memory including a non¬ volatile memory capable of erasing and programming data electrically, for example, an EEPROM (Electrically Erasable and Programmable Read Only Memory) . Also, the memory unit 620 can store an emergency situation message inputted from the anti-disaster center 400.
The emergency signal light driver 630 drives the emergency signal light 700 including a warning light and a direction signal light, which can include electric circuits for stably providing the emergency signal light 700 with power provided from an external power source or a battery, for example, a rectification circuit, an over-voltage interruption circuit, and the like.
The warning sound output unit 640 informs its surroundings that the emergency vehicle enters into the road, which can include a warning sound memory storing sound source information, a warning sound regeneration unit for reading out the sound source information from the warning
sound memory and converting the information into an audible sound signal, and a loud speaker.
As such, the traffic signal controller 600 for an emergency vehicle informs its surroundings that the emergency vehicle has entered the road, so that pedestrians as well as general vehicle drivers can be forewarned in order that the emergency vehicle may pass smoothly.
The video process unit 650 compresses or processes video signals inputted from the camera unit 900 and outputs them, and can be embodied by an MPEC or JPEG encoder or various other compression methods.
The controller 660 controls the entire system and can be preferably embodied with a microprocessor in which a ROM, a RAM and a peripheral are integrated. In an embodiment of the present invention, the controller 660 includes an emergency signal process unit 664 and a signal change request unit 666.
The emergency signal process unit 664 generates and outputs emergency signal light control information on the basis of an emergency situation message including controller identification information and vehicle movement path information inputted from the anti-disaster center 400 through the first communication unit 610.
When the signal change request unit 666 receives the emergency signal light control signal from the emergency
signal process unit 664, it outputs the signal change request message to the general traffic signal controller 800 through the second communication unit 615. In an embodiment of the present invention, preferably, when the traffic signal controller 800 receives the signal change request message from the signal change request unit βββ, it changes the driving signal light or the pedestrian signal light to a red color signal. Accordingly, a general driving vehicle driver can see the red color signal of the driving signal light and stop his or her vehicle, even though he or she did not know that the emergency signal light was turned on.
In accordance with another embodiment of the present invention, although the traffic signal light controller 600 for the emergency vehicle is not shown in the Figures, the embodiment can further include a third communication unit for transmitting and receiving a radio signal to and from the emergency vehicle. In an embodiment of the present invention, the third communication unit can be embodied with an antenna and an RF circuit. In this case, in an embodiment of the present invention, when the emergency signal process unit 664 receives the vehicle identification information from the emergency vehicle through the third communication unit, it identifies whether the emergency situation message corresponding to the inputted vehicle identification information is stored in the
memory unit 620. And, in the case that the emergency situation message is stored in the memory unit 620, the emergency signal process unit 664 can generate the emergency signal light control information on the basis of the emergency situation message stored in the memory unit 620 and output the control information to the emergency signal light driver 630.
Accordingly, the traffic signal light controller 600 for the emergency vehicle in accordance with the present invention does not operate the emergency signal light 700 as soon as the emergency situation message arrives from the anti-disaster center 400, it can operate the emergency signal light 700 at the moment when the emergency vehicle enters into a position that is a predetermined distance away from the road equipped with the controller.
In accordance with another embodiment of the present invention, the controller 600 further includes an emergency vehicle approach process unit 668 that compares GPS reference information of the emergency vehicle inputted through the third communication unit and GPS reference information of the controller, and calculates and outputs a movement level and a movement direction of the emergency vehicle when the emergency vehicle approach process unit 668 receives the emergency situation message identification
signal for the emergency vehicle from emergency signal process unit 664.
In this case, in accordance with an embodiment of the present invention, the emergency signal process unit 664 can generate the emergency signal light control information on the basis of the movement level and movement direction information of the emergency vehicle inputted from the emergency signal process unit 664 and the emergency situation message stored in the memory unit 620 and output the control information to the emergency signal light driver 630.
Accordingly, the traffic signal light controller 600 for the emergency vehicle in accordance with the present invention can automatically identify whether the emergency vehicle passed over a road equipped with a corresponding controller. As such, the traffic signal light controller 600 for the emergency vehicle can automatically release control of the emergency signal light 700 without receiving a drive release message of the emergency signal light 700 from the anti-disaster center 400, for example.
In accordance another embodiment of the present invention, the emergency signal process unit 664 can generate vehicle operation information on the basis of the movement level and movement direction information and the emergency vehicle identification information of emergency
vehicle inputted from the emergency signal process unit 664 and output the vehicle operation information to the anti- disaster center 400 through the first communication unit 610, In accordance with another embodiment of the present invention, the emergency signal process unit 664 can generate vehicle operation information on the basis of video data inputted from the video process unit 650 and the movement level and movement direction information and the emergency vehicle identification information of emergency vehicle inputted from the emergency signal process unit 664 and output the vehicle operation information to the anti- disaster center 400 through the first communication unit 610. Accordingly, the anti-disaster center 400 receives the vehicle operation information including a moving picture and a controller passing time of the emergency vehicle from the traffic signal controller 600 for the emergency vehicle and stores vehicle operation information, so that it can manage the operation information of the emergency vehicle more substantially. In accordance with another embodiment of the present invention, the traffic signal light controller 600 for the emergency vehicle can further include an operational unit 670 for inputting a user operation instruction, and a display unit 680 for displaying a menu and an operation state.
In accordance with an embodiment of the present invention, the operational unit 670 can comprise a key pad consisting of a numeral key, a function key and the like, a touch panel, a handwriting input unit, a voice recognition unit and the like. The display unit 680 can be one of known display units, such as a liquid crystal display.
According to such an aspect of the present invention, in accordance with one embodiment, the emergency signal process unit 664 can generate the emergency signal light control information according to the operational instruction inputted from the operational unit 670 and output the control instruction to the driver 630.
Accordingly, the traffic signal light controller 600 for the emergency vehicle in accordance with the present invention can be manually operated, so that the emergency vehicle can smoothly drive even when it is not possible to communicate with the anti-disaster center 400 under unavoidable circumstances.
FIG. 4 is a block diagram showing a construction of an anti-disaster center in accordance with an embodiment of the present invention.
As shown in FIG. 4, according to an embodiment of the present invention, the anti-disaster center 400 includes a display unit 410, an operational unit 420, a communication unit 430, a storage unit 440 and a controller 450.
The display unit 410 displays a menu and an operational state, which can be one of known display units such as a liquid crystal display. The operational unit 420 receives a user operational instruction, which can be input via a key pad consisted of numeral and functional keys, a touch panel, a handwriting input unit, a voice recognition unit and the like.
The communication unit 430 transmits and receives data signals to and from the traffic signal light controller 600 for the emergency vehicle, which can be constructed of an antenna and a radio communication circuit used to communicate with the base transceiver system. The firs communication unit 610 can be embodied with a radio communication circuit of CDMA scheme having various versions . The first communication unit 610 can be embodied with a radio communication circuit of a mobile communication method to be appeared in the future as well as existing schemes such as cellular, GSM, and W-CDMA schemes. In accordance with an embodiment of the present invention, the storage unit 440 stores geographical information 441, and identification information 443 of a plurality of traffic signal controllers of the emergency vehicle installed in specific positions . In accordance with an embodiment of the present invention, the geographical information 441 includes map information including latitude, longitude and land lot
number of a name of a place. The identification information 443 of the traffic signal controllers of the emergency vehicle may be identification information constructed of a series of simple characters. The controller 450 controls the entire system, which is preferably embodied with a microprocessor in which a ROM, a RAM and a peripheral are integrated. And, in an embodiment of the present invention, the controller 450 may include a movement path process unit 452 and an emergency situation process unit 454.
The movement path process unit 452 calculates and outputs movement path information of the emergency vehicle in transit to the location of an emergency situation.
In accordance with an embodiment of the present invention, the movement path process unit 452 can establish a movement path between a hospital, a poiice station or a fire station selectively inputted from the operational unit 420 and a reported emergency situation occurrence place. Also, when the movement path process unit 452 receives an emergency situation occurrence signal from the operational unit 420, it reads out the geographical information including the emergency situation occurrence place, and the hospital, the police station or the fire station adjacent to the place from the storage unit 440, and displays the information on the display unit 410.
In another embodiment of the present invention, when the movement path process unit 452 receives an emergency situation occurrence signal through the communication unit 430, it can read out the geographical information including the emergency situation occurrence place, and the hospital, the police station or the fire station adjacent to the place from the memory unit 440, and automatically search for the position information of the hospital, the police station or the fire station adjacent to the emergency situation occurrence place. In this case, the movement path process unit 452 can establish the movement path between the emergency situation occurrence place and the hospital, the police station or the fire station adjacent to the emergency situation occurrence place using the position information. In another embodiment of the present invention, the movement path process unit 452 can receive the movement path of the fire car, the police car or the emergency car moving to the reported emergency situation occurrence place from the corresponding vehicle. When the emergency situation process unit 454 receives the vehicle movement path information from the movement path process unit 452, it reads out identification information of the traffic signal controllers for the emergency vehicle stored in the storage unit 440, generates an emergency situation message including controller identification
information for each of traffic signal controllers for the emergency vehicle installed on a road of the vehicle movement path and vehicle movement path information, and outputs the emergency situation message to the traffic signal controllers for the emergency vehicle through the communication unit 430.
In accordance with another embodiment of the present invention, the emergency situation process unit 454 can control output time of the emergency situation message for the traffic signal controllers for each of the emergency vehicle on the basis of vehicle movement path information inputted from the movement path process unit 452. Accordingly, the anti-disaster center 400 can reduce the time for which a general vehicle driver has to wait until the emergency vehicle passes through the road equipped with the corresponding controller.
In accordance with another embodiment of the present invention, the emergency situation process unit 454 can compare information on the vehicle movement situation inputted from the emergency vehicle through the communication unit 430 and vehicle movement path information inputted from the movement path process unit, and control the output time of the emergency situation message for each of the traffic signal controllers for the emergency vehicle on the basis of the comparison result. Accordingly, the
anti-disaster center 400 controls the traffic signal controllers for the emergency vehicle according to the movement situation of the emergency vehicle, so that it can provide both of the general vehicle and the emergency vehicle with satisfactory services.
In accordance with another embodiment of the present invention, when the anti-disaster center 400 receives information on the vehicle movement situation from the emergency vehicle through the communication unit 430, it can further include an emergency vehicle monitoring unit 456 that generates vehicle operational information on the emergency vehicle and stores the information in the storage unit 440. In accordance with an embodiment of the present invention, the vehicle operational information can include the emergency vehicle identification information, vehicle operational time and data, and so on.
In accordance with an embodiment of the present invention, the emergency vehicle monitoring unit can store the vehicle operational information of the emergency vehicle inputted from the traffic signal controller for the emergency vehicle through the communication unit 430 in the storage unit 440.
FIG. 5 is a flow chart showing an operation of a traffic signal light controller for an emergency vehicle in accordance with an embodiment of the present invention.
When the traffic signal light controller for the emergency vehicle receives an emergency situation message including the controller identification information for each of the traffic signal controllers for the emergency vehicle installed on the road over which the emergency vehicle passes and an emergency situation message including vehicle movement path information from the anti-disaster center
(S41), it stores the identification information and the emergency situation message in the memory. Then, the traffic signal light controller for the emergency vehicle transmits an RF signal having a predetermined frequency used to communicate with the emergency vehicle.
The traffic signal light controller for the emergency vehicle identifies whether the emergency vehicle enters within a predetermined radius centered upon the road equipped with the controller (S42) . Then, when the traffic signal light controller for the emergency vehicle receives an RF signal including the vehicle identification information from the emergency vehicle, it searches for the memory using the corresponding vehicle identification information and identifies whether the emergency situation message corresponding to the vehicle identification information is stored in the memory (S43 and S44) . As a result of the identification, if the emergency situation message corresponding to the vehicle identification
information is stored in the memory, the movement level and movement direction of the emergency vehicle is calculated by comparing GPS reference information inputted from the emergency vehicle and GPS reference information of the controller (S45) .
Then, the traffic signal light controller for the emergency vehicle identifies whether the emergency vehicle enters within the predetermined radius on the basis of the calculated movement level of the emergency vehicle (S46) . As a result of the identification, if the emergency vehicle entered within the predetermined radius, the traffic signal light controller for the emergency vehicle drives the emergency signal light according to the emergency situation message of the corresponding emergency vehicle stored in the memory (S47) . Then, the traffic signal light controller for the emergency vehicle identifies whether the emergency vehicle has passed on the basis of the movement level of the emergency vehicle (S48) . As a result of the identification, if the traffic signal light controller for the emergency vehicle determines that the emergency vehicle has passed through, it releases control of the emergency signal light (S49) .
Then, the traffic signal light controller for the emergency vehicle identifies whether a system termination signal is inputted. And, it performs step 42 of identifying
whether the emergency vehicle has entered within the predetermined radius if the termination signal was not inputted, and terminates the system if the termination signal is inputted. As described above, in accordance with the present invention, the general vehicle driver can be forewarned in order that the emergency vehicle may smoothly drive in the case that the emergency signal light is operated. Accordingly, there is a useful effect that the emergency vehicle can swiftly drive and the general vehicle can drive smoothly.
Also, in accordance with the present invention, there is a useful effect that the general vehicle driver and pedestrians can be prepared in order that the emergency vehicle smoothly drives by informing the surrounding area that the emergency vehicle has entered the road using the warning sound.
Also, in accordance with the present invention, there is a useful effect that the traffic signal controller for the emergency vehicle can be manually operated so that the emergency vehicle can smoothly drive even when the controller cannot communicate with the anti-disaster center under unavoidable circumstances .
While the present invention has been described with reference to exemplary embodiments thereof, it will be
understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the present invention as defined by the following claims .
Claims
1. A traffic signal light control system for an emergency vehicle, comprising: an anti-disaster for generating and outputting an emergency situation message including controller identification information for each of traffic signal controllers for the emergency vehicle installed on the road through which the emergency vehicle passes and vehicle movement information when an emergency situation occurrence signal is inputted; and a traffic signal controller for the emergency vehicle for controlling an emergency signal light including a warning light and a direction signal light according to the emergency situation message inputted from the anti-disaster center.
2. The control system of claim 1, wherein the traffic signal controller for the emergency vehicle includes : a first communication unit for transmitting and receiving a data signal to and from the anti-disaster center; an emergency signal process unit for generating and outputting emergency signal light control information on the basis of the emergency situation message including controller identification information inputted from the anti-disaster center through the first communication unit and vehicle movement path information; and an emergency signal light driver for driving an emergency signal light including a warning light and a direction signal light according to the emergency signal light control information inputted from the emergency signal process unit.
3. The control system of claim 2, wherein the traffic signal controller for the emergency vehicle includes : a second communication unit for transmitting and receiving a data signal to and from a traffic signal controller to control a pedestrian signal light or a driving signal light; and a signal change request unit for outputting a signal change request message to the traffic signal controller through the second communication unit when the emergency signal light control signal is inputted from the emergency signal process unit.
4. The control system of claim 3, wherein the traffic signal controller for the emergency vehicle further includes : a third communication unit for transmitting and receiving a radio signal to and from the emergency vehicle; and a memory unit for storing an emergency situation message inputted from the emergency signal process unit, and wherein in the case that vehicle identification information is inputted from the emergency vehicle through the third communication unit, the emergency signal process unit identifies whether an emergency situation message corresponding to the inputted vehicle identification information was stored in the memory unit, and generates emergency signal light control information on the basis of the emergency situation message stored in the memory unit and outputs the emergency signal light control information to an emergency signal light driver in the case that the emergency situation message was stored in the memory unit.
5. The control system of claim 4, wherein the traffic signal controller for the emergency vehicle further includes an emergency vehicle approach process unit for comparing GPS reference information of the emergency vehicle inputted through the third communication unit and GPS reference information of the controller, and calculating and outputting a movement level and a movement direction of the emergency vehicle when the emergency situation message identification signal for the emergency vehicle is inputted from the emergency signal process unit, and wherein the emergency signal process unit generates emergency signal light control information and outputs the control information to the emergency signal light driver on the basis of movement level and movement direction information of the emergency vehicle inputted from the emergency vehicle approach process unit.
6. The control system of claim 5, wherein the emergency signal process unit generates vehicle operational information on the basis of the movement level and movement direction information of the emergency vehicle inputted from the emergency vehicle approach process unit and emergency vehicle identification information and outputs the vehicle operational information to the anti-disaster center through the first communication unit.
7. The control system of claim 5, wherein the traffic signal controller for the emergency vehicle further comprises a video process unit for compressing or signal processing and outputting a video signal inputted from a camera, and wherein the emergency signal process unit generates vehicle operational information on the basis of video data inputted from the video process unit, the movement level and movement direction information of the emergency vehicle inputted from the emergency vehicle approach process unit, and emergency vehicle identification information, and outputs the vehicle operational information to the anti- disaster center through the first communication unit.
8. The control system of claim 5, wherein the traffic signal controller for the emergency vehicle further comprises a warning sound output unit including a warning memory, a warning sound regeneration unit, and a speaker, and wherein the emergency signal process unit outputs a warning sound output control signal to the warning sound output unit on the basis of movement level information of the emergency vehicle inputted from the emergency vehicle approach process unit when the emergency vehicle enters within a predetermined distance.
9. The control system of claim 8, wherein the traffic signal controller for the emergency vehicle further comprises: an operational unit for receiving a user operational instruction; and a display unit for displaying a menu and an operational state, and wherein the emergency signal process unit generates and outputs emergency signal light control information according to an operational instruction inputted from the operational unit.
10. The control system of anyone of claims 1 to 9, wherein the anti-disaster center comprises: a communication unit for transmitting and receiving a data signal to and from the traffic signal controller for the emergency vehicle; a storage unit for storing identification information and geographical information of a plurality of traffic signal controllers for the emergency vehicle installed in specific positions; a movement path process unit for calculating and outputting movement path information of the emergency vehicle moving to an emergency situation occurrence place; and an emergency situation process unit for reading out identification information of the traffic signal controllers for the emergency vehicle stored in the storage unit when the vehicle movement path information is inputted from the movement path process unit, generating an emergency situation message including controller identification information and vehicle movement path information for each of the traffic signal controllers for the emergency vehicle installed on the road of the vehicle movement path, and outputting the emergency situation message to the traffic signal controllers for the emergency vehicle through the communication unit.
11. The control system of claim 10, wherein the emergency situation process unit controls output time of the emergency situation message for each of the traffic signal controllers for the emergency vehicle on the basis of the vehicle movement path information inputted from the movement path process unit.
12. The control system of claim 10, wherein the emergency situation process unit compares information on a vehicle movement situation inputted from the emergency- vehicle through the communication unit and vehicle movement path information inputted from the movement path process unit, and controls output time of the emergency situation message for each of the traffic signal controllers for the emergency vehicle on the basis of the comparison result.
13. The control system of claim 10, wherein the anti- disaster center further comprises : an operational unit for receiving a user operational instruction; and a display unit for displaying a menu and an operational state, and wherein in the case that the emergency situation occurrence signal is inputted from the operational unit, the movement path process unit reads out geographical information including an emergency situation occurrence place, and a hospital, a police station or a fire station adjacent to the place and displays the geographical information on the display unit.
14. The control system of claim 10, wherein the anti- disaster center further comprises an emergency vehicle monitoring unit for generating vehicle operational information for the emergency vehicle when information on the vehicle movement situation is inputted from the emergency vehicle through the communication unit and stores the information in the storage unit.
15. The control system of claim 14, wherein the emergency vehicle monitoring unit further stores the vehicle operational information for the emergency vehicle inputted from the traffic signal controller for the emergency vehicle through the communication unit in the storage unit.
16. A traffic signal light controller for an emergency vehicle connected to an anti-disaster center that generates and outputs an emergency situation message including controller identification information on each of traffic signal controllers for the emergency vehicle installed on a road through which the emergency vehicle passes and vehicle movement path information through a network when an emergency situation occurrence signal is inputted, wherein the traffic signal light controller for the emergency vehicle comprises: a first communication unit for transmitting and receiving a data signal to and from the anti-disaster center; an emergency signal process unit for generating and outputting emergency signal light control information on the basis of the emergency situation message including controller identification information inputted from the anti-disaster center through the first communication unit and vehicle movement path information; and an emergency signal light driver for driving an emergency signal light including a warning light and a direction signal light according to the emergency signal light control information inputted from the emergency signal process unit.
17. The traffic signal light controller of claim 16, wherein the traffic signal controller for the emergency vehicle includes: a second communication unit for transmitting and receiving a data signal to and from a traffic signal controller to control a pedestrian signal light or a driving signal light; and a signal change request unit for outputting a signal change request message to the traffic signal controller through the second communication unit when the emergency signal light control signal is inputted from the emergency signal process unit.
18. The traffic signal light controller of claim 17, wherein the traffic signal light controller for the emergency vehicle further includes: a third communication unit for transmitting and receiving a radio signal to and from the emergency vehicle; and a memory unit for storing an emergency situation message inputted from the emergency signal process unit, and wherein in the case that vehicle identification information is inputted from the emergency vehicle through the third communication unit, the emergency signal process unit identifies whether an emergency situation message corresponding to the inputted vehicle identification information was stored in the memory unit, and generates emergency signal light control information on the basis of the emergency situation message stored in the memory unit and outputs the emergency signal light control information to an emergency signal light driver in the case that the emergency situation message was stored in the memory unit.
19. The traffic signal light controller of claim 18, wherein the traffic signal controller for the emergency vehicle further includes an emergency vehicle approach process unit for comparing GPS reference information of the emergency vehicle inputted through the third communication unit and GPS reference information of the controller, and calculating and outputting a movement level and a movement direction of the emergency vehicle when the emergency situation message identification signal for the emergency vehicle is inputted from the emergency signal process unit, and wherein the emergency signal process unit generates the emergency signal light and outputs the emergency signal light to the emergency signal light driver on the basis of movement level and movement direction information of the emergency vehicle inputted from the emergency vehicle approach process unit.
20. The traffic signal light controller of claim 19, wherein the emergency signal process unit generates vehicle operational information on the basis of the movement level and movement direction information of the emergency vehicle inputted from the emergency vehicle approach process unit and emergency vehicle identification information and outputs the vehicle operational information to the anti-disaster center through the first communication unit.
21. The traffic signal light controller of claim 19, wherein the traffic signal controller for the emergency vehicle further comprises a video process unit for compressing or signal processing and outputting a video signal inputted from a camera, and wherein the emergency signal process unit generates vehicle operational information on the basis of video data inputted from the video process unit, the movement level and movement direction information of the emergency vehicle inputted from the emergency vehicle approach process unit, and emergency vehicle identification information, and outputting the vehicle operational information to the anti- disaster center through the first communication unit.
22. The traffic signal light controller of claim 19, wherein the traffic signal controller for the emergency vehicle further comprises a warning sound output unit including a warning sound memory, a warning sound regeneration unit, and a speaker, and wherein the emergency signal process unit outputs the warning sound output control signal to the warning sound output unit on the basis of movement level information of the emergency vehicle inputted from the emergency vehicle approach process unit when the emergency vehicle enters within a predetermined distance.
23. The traffic signal light controller of claim 22, wherein the traffic signal controller for the emergency vehicle further comprises: an operational unit for receiving a user operational instruction; and • a display unit for displaying a menu and an operational state, and wherein the emergency signal process unit generates and outputs emergency signal light control information according to an operational instruction inputted from the operational unit.
T] (Q "
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040095883A KR100470448B1 (en) | 2004-11-22 | 2004-11-22 | System for contorlling traffic signal lamp for urgent vehicle and traffic signal lamp contorller for urgent vehicle being in use with it |
| KR10-2004-0095883 | 2004-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006054811A1 true WO2006054811A1 (en) | 2006-05-26 |
Family
ID=36407334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2004/003159 WO2006054811A1 (en) | 2004-11-22 | 2004-12-02 | System and device for controlling traffic signal for emergency vehicles |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100470448B1 (en) |
| WO (1) | WO2006054811A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009021902A1 (en) * | 2007-08-16 | 2009-02-19 | Siemens Aktiengesellschaft | Method and device for prioritizing special-purpose vehicles at a traffic light-controlled intersection |
| CN106322288A (en) * | 2016-08-27 | 2017-01-11 | 江苏开元太阳能照明有限公司 | Intelligent solar street lamp |
| US10424196B1 (en) | 2018-06-25 | 2019-09-24 | At&T Intellectual Property I, L.P. | Dynamic edge network management of vehicular traffic |
| DE202022101961U1 (en) | 2022-04-12 | 2022-06-21 | Shish Kumar Dubey | Intelligent system for controlling road transport for dispatching ambulances based on IOT and artificial intelligence |
| EP3005334B1 (en) * | 2013-08-23 | 2023-04-12 | Yunex GmbH | System for determining traffic information |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100649672B1 (en) | 2005-01-14 | 2006-11-27 | 주식회사 신우엔지니어링 | Traffic signal lamp for urgent vehicle being in use with it |
| KR100854294B1 (en) | 2006-09-19 | 2008-08-26 | 김용훈 | Traffic signal control system communicating with car navigation and device for choosing direction manually |
| KR100883193B1 (en) * | 2007-02-28 | 2009-02-13 | 상무텔레콤 주식회사 | Traffic controller for emergency vehicle |
| US8599041B2 (en) | 2008-12-09 | 2013-12-03 | Electronics And Telecommunications Research Institute | Apparatus and method for controlling traffic light |
| KR101568586B1 (en) * | 2014-05-27 | 2015-11-12 | 한양대학교 에리카산학협력단 | System and Method for Announcing Traffic Information in Real-time Using RF Signal Communication and for Controlling EMS in Vehicle Using the Same |
| KR102016537B1 (en) * | 2019-05-09 | 2019-08-30 | 주식회사 맥서브 | System for controlling traffic condition installed in road and tunnel based on CCTV image |
| KR102486218B1 (en) * | 2019-11-26 | 2023-01-10 | 메타로보틱스 주식회사 | Method and apparatus for controlling quarantine checkpoint based on cloud |
| KR102303181B1 (en) * | 2021-04-09 | 2021-09-16 | 고재경 | Traffic signal control system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4573049A (en) * | 1983-04-21 | 1986-02-25 | Bourse Trading Company, Ltd. | Traffic signal light control for emergency vehicles |
| US4914434A (en) * | 1988-06-13 | 1990-04-03 | Morgan Rodney K | Traffic signal preemption system |
| WO1995019021A1 (en) * | 1994-01-07 | 1995-07-13 | Minnesota Mining And Manufacturing Company | Gps-based traffic control preemption system |
| EP0731431A1 (en) * | 1995-03-07 | 1996-09-11 | Peter Dunse | Control device for traffic signals |
| WO1996035197A1 (en) * | 1995-05-05 | 1996-11-07 | L & H Company, Inc. | Automatic determination of traffic signal preemption using differential gps |
| KR19990058331A (en) * | 1997-12-30 | 1999-07-15 | 오상수 | Traffic Control System for Emergency Vehicles |
-
2004
- 2004-11-22 KR KR1020040095883A patent/KR100470448B1/en not_active IP Right Cessation
- 2004-12-02 WO PCT/KR2004/003159 patent/WO2006054811A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4573049A (en) * | 1983-04-21 | 1986-02-25 | Bourse Trading Company, Ltd. | Traffic signal light control for emergency vehicles |
| US4914434A (en) * | 1988-06-13 | 1990-04-03 | Morgan Rodney K | Traffic signal preemption system |
| WO1995019021A1 (en) * | 1994-01-07 | 1995-07-13 | Minnesota Mining And Manufacturing Company | Gps-based traffic control preemption system |
| EP0731431A1 (en) * | 1995-03-07 | 1996-09-11 | Peter Dunse | Control device for traffic signals |
| WO1996035197A1 (en) * | 1995-05-05 | 1996-11-07 | L & H Company, Inc. | Automatic determination of traffic signal preemption using differential gps |
| KR19990058331A (en) * | 1997-12-30 | 1999-07-15 | 오상수 | Traffic Control System for Emergency Vehicles |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009021902A1 (en) * | 2007-08-16 | 2009-02-19 | Siemens Aktiengesellschaft | Method and device for prioritizing special-purpose vehicles at a traffic light-controlled intersection |
| EP3005334B1 (en) * | 2013-08-23 | 2023-04-12 | Yunex GmbH | System for determining traffic information |
| CN106322288A (en) * | 2016-08-27 | 2017-01-11 | 江苏开元太阳能照明有限公司 | Intelligent solar street lamp |
| US10424196B1 (en) | 2018-06-25 | 2019-09-24 | At&T Intellectual Property I, L.P. | Dynamic edge network management of vehicular traffic |
| US10957191B2 (en) | 2018-06-25 | 2021-03-23 | At&T Intellectual Property I, L.P. | Dynamic edge network management of vehicular traffic |
| US11373525B2 (en) | 2018-06-25 | 2022-06-28 | At&T Intellectual Property I, L.P. | Dynamic edge network management of vehicular traffic |
| DE202022101961U1 (en) | 2022-04-12 | 2022-06-21 | Shish Kumar Dubey | Intelligent system for controlling road transport for dispatching ambulances based on IOT and artificial intelligence |
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|---|---|
| KR100470448B1 (en) | 2005-02-07 |
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