CN102402863A - Signal priority control system and method for ensuring bus circulation - Google Patents
Signal priority control system and method for ensuring bus circulation Download PDFInfo
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- CN102402863A CN102402863A CN2011103370399A CN201110337039A CN102402863A CN 102402863 A CN102402863 A CN 102402863A CN 2011103370399 A CN2011103370399 A CN 2011103370399A CN 201110337039 A CN201110337039 A CN 201110337039A CN 102402863 A CN102402863 A CN 102402863A
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Abstract
The invention relates to a signal priority control system and a corresponding method for ensuring bus circulation. A bus is judged whether to be close to road junction or not by comparing bus longitude and latitude coordinate information with central longitude and latitude coordinate information of each road junction; the bus is judged whether to arrive at monitoring point or not by comparing the bus longitude and latitude coordinate information with longitude and latitude coordinate information of the monitoring point around the road junction; and when the bus reaches the monitoring point, a command control center controls road junction signal lamps to provide a green lamp signal for the bus, and meanwhile, a vehicle-mounted video display module on the bus and an information display board disposed in downstream direction of vehicle driving at the road junction can prompt bus drivers and other drivers on whether buses obtain priority signals or not and how the signal lamps will change subsequently, and the vehicle drivers in two directions instantly make responses according to the information prompted by the information display board, and decide whether to drive on to pass through the road junction or slow down to stop and wait.
Description
Technical field
The present invention relates to intelligent transportation control field, be specifically related to a kind of signal priority control system and method that guarantees that public transport is unimpeded.
Background technology
City bus is the important component part of green traffic, low-carbon (LC) life, and along with socioeconomic fast development, urban population is more and more intensive, and the problem of blocking up of urban road becomes increasingly conspicuous, and this also becomes the key factor that influences people's living standard.In order to alleviate traffic congestion, satisfy people's trip requirements, bus is implemented signal priority control, at home and abroad generally used.
Existing Chinese patent document CN 101256717B discloses a kind of quick public transport location and traffic signal control method and device based on GPS; The car-mounted device that this device is formed through the modules such as GPS and MCU, RF wireless transmission that are installed on the quick public transport in real time, automatically sends data to the vehicle location information of the bus rapid transit that obtains ground reception and treating apparatus and carries out the processing that wireless data avoids conflict through the RF wireless transport module of RF wireless transport module by car-mounted device.The ground receiving and processing device is handled the quick public transport that obtains and the related data information of these 2 positions of traffic signal controlling machine, and calculates relative position coordinates, distance and the vehicle heading etc. of quick public transport and ground receiving and processing device.With these information real-time, automatically send to traffic signal controlling machine, undertaken in time, switch effectively by the traffic lights of traffic signal controlling machine more then, be preferably quick public transport and give way, thereby guarantee that quick public transport is preferential, current fast the crossing.Adopt above-mentioned technology, have following problem:
When the driver of BRT vehicle drives to the crossing; Can not judge that ground receives and treating apparatus whether treated the override requests of oneself; If current demand signal is a green light signals, and will become red light, the driver does not know whether traffic signal controlling machine can keep green light for oneself at once; If current is red light phase, the driver can not confirm traffic signal controlling machine for let oneself preferentially through and rapidly signal lamp is changed to green light.And in actual conditions; Might all there be the BRT vehicle to pass through by both direction; At this moment traffic signal controlling machine can only provide priority signal for the BRT vehicle on one of them direction; And this moment, the driver of the BRT vehicle of both direction all is not sure of oneself whether to have obtained priority signal, can't make rational plan to next step action of oneself.Same; Non-BRT vehicle driver; Can not know whether traffic signal controlling machine provides priority signal for the BRT vehicle; Promptly when being green light on the travel direction, do not know therefore whether signal lamp can be not sure of the wait that oneself needs to slow down and still be quickened to pass through because of becoming amber light in advance for the BRT vehicle on the other direction provides priority signal; When non-BRT vehicle driver observes the front signal lamp is red light and when at once becoming green light; Whether the driver is not sure of traffic signaling equipment can be because of the red time that provides priority signal to prolong the current driving direction for the BRT vehicle on the other direction, and whether therefore being not sure of oneself need stop is waited for that still preparation starts vehicle.
Existing Chinese patent document CN 101334934A discloses a kind of vehicle mounted traffic displaying apparatus; This device is for being arranged on the traffic signals indicating device of the indication of one in car junction ahead signal; Said indicating device comprises, a display panel, the signal receiving device that is connected with display panel.The loudspeaker that also have a sounding on the said display panel.During use, this device is accepted the data of the traffic lights of junction ahead, and on display panel, shows, if junction ahead is a red light, shows on the display panel that then junction ahead is a red light, and shows counting down of red light, if instead be that green light also is like this.Adopt the vehicle mounted traffic displaying apparatus in the technique scheme; Though can show the state of junction ahead signal lamp; But for the driver; When vehicle arrives the crossing, no matter see that the demonstration of the signal lamp of junction ahead sees that still the signal lamp state in the own car shows, under following two kinds of situation, still can not and confirm whether oneself should quicken to pass through the crossing excess time according to the color of current demand signal lamp:
1. the current red light that is shown as of belisha beacon; But the countdown demonstration is about to become green light; Whether driver's person of sailing is not sure of traffic signaling equipment can be because of prolonging the red time of current driving direction for the BRT vehicle on the other direction provides priority signal; Whether need Reduced Speed Now, stop when arriving the crossing then and wait for if promptly being not sure of oneself;
2. the current green light that is shown as of belisha beacon; But the countdown demonstration is about to become amber light; The driver does not know whether signal lamp can be because of becoming amber light in advance for the BRT vehicle on the other direction provides priority signal; Be that the driver can not judge oneself whether can quicken rapidly through the crossing, to avoid unnecessary wait.
Summary of the invention
Technical matters to be solved by this invention is can not know whether oneself has obtained priority signal when bus driver drives to the place, crossing in the prior art; And non-bus vehicle driver can not know whether signal lamp is that bus provides priority signal and become lamp not according to the normal variation rule; Thereby bus driver and non-bus driver all can not be taked corresponding measure according to current demand signal lamp state, are in comparatively passive state.
For solving the problems of the technologies described above, the present invention provides a kind of signal priority control system that guarantees that public transport is unimpeded, comprising: board units, signal lamp control module, priority signal processing unit and information display board;
Said board units is arranged on the bus, comprising:
Vehicle location detection module: be used for confirming bus latitude and longitude coordinates information in real time and this latitude and longitude coordinates information being sent to the command and control center;
Vehicular video display module: be used to point out bus driver junction ahead signal lamp state;
Said signal lamp control module is arranged at inside, command and control center, receives said bus latitude and longitude coordinates information in real time, judges position of bus and travel direction, the variation of control belisha beacon;
Said information display board is arranged at the downstream direction of place, crossing vehicle ', and each information display board has well-determined id information;
Said signal lamp control module comprises:
Data memory module: be used to store each crossing center longitude coordinate information, be arranged on crossing monitoring point latitude and longitude coordinates information on every side and the id information that is arranged at the information display board at place, crossing;
Data reception module: receive said bus latitude and longitude coordinates information in real time;
Data comparing module: the crossing center longitude coordinate information of storing in said bus latitude and longitude coordinates information and the said data memory module is compared, judge that whether vehicle is through the crossing;
The instruction output module: according to the comparison result of said data comparing module, output steering order control signal lamp changes, and when bus obtains priority signal, the information of priority signal and signal lamp variable condition is sent to said priority signal processing unit;
Said priority signal processing unit is arranged at inside, command and control center; It comprises video processing module; Be used for being sent to said Vehicular video display module after the information processing with priority signal and signal lamp variable condition, whether said Vehicular video display module prompting bus driver obtains next step situation of change of priority signal and signal lamp;
Be provided with information display board control module in the said priority signal processing unit, whether said information display board control module is according to having bus to obtain the priority pass signal, and the said information display board of control different directions shows below information:
The information display board prompting and command control center that is provided with on the prior-release direction is for the bus of this direction running provides priority signal, and vehicle can normally pass through the crossing;
The information display board prompting and command control center that is provided with on the non-prior-release direction needs ramp to stop to wait for for the other direction bus provides priority signal.
Said vehicle location detection module comprises the GPS locating module: the latitude and longitude coordinates information that is used for confirming in real time vehicle location; Data transmission module: be used for the latitude and longitude coordinates information of vehicle is sent to said data reception module.
Along vehicle heading a plurality of monitoring points are set around the crossing, the distance that to be vehicle go a second with the speed limit in this highway section of the distance between adjacent two said monitoring points.
Center, said crossing and monitoring point are confirmed on the electronic chart that has latitude and longitude coordinates information; By the said electronic chart that has latitude and longitude coordinates information said crossing center longitude coordinate information and monitoring point latitude and longitude coordinates information are provided, and with the stored in form of tables of data in said data memory module.
Said information display board is made up of four LED electronic displays that are arranged on place, crossing vehicle ' downstream direction;
During said information display board control module output control signal " 1 " to said LED electronic display, the information of said LED electronic display screen displays prior-release signal;
During said information display board control module output control signal " 0 " to said LED electronic display, said LED electronic display screen displays the other side vehicle obtains the information of prior-release signal.
Said Vehicular video display module also comprises a sounding submodule; Said priority signal processing unit also comprises audio processing modules, and said audio processing modules is the sound signal that said sounding submodule can be play with junction ahead signal lamp light color status information and information processing excess time.
The present invention also provides a kind of signal priority control method that guarantees that public transport is unimpeded, may further comprise the steps:
A, the utilization of signal lamp control module have the electronic chart of latitude and longitude coordinates information, obtain the latitude and longitude coordinates information of each center, crossing and position, monitoring point, with the stored in form of tables of data in data memory module; Downstream direction in each place, crossing vehicle ' is provided with the information display board with unique definite id information, also stores the id information of the information display board that is arranged at the place, crossing in the said tables of data;
B, vehicle location detection module obtain bus latitude and longitude coordinates information in real time, are sent to the data reception module of signal lamp control module;
C, data comparing module are compared the crossing center longitude coordinate information in bus latitude and longitude coordinates information in the said data reception module and the said data memory module in real time, judge that whether bus is near the crossing;
D, confirm that bus is near the crossing after; The data comparing module is compared the latitude and longitude coordinates information of said bus latitude and longitude coordinates information and said monitoring point in real time; When vehicle arrives the monitoring point; The data comparing module is to instruction output module sending controling instruction, and instruction output module control belisha beacon is that bus provides the green light all-clear and the public traffic in priority position is set and is " 1 "; Said instruction output module is sent to the priority signal processing unit with the information of priority signal and signal lamp variable condition simultaneously;
Be sent to said Vehicular video display module after the information processing of video processing module with priority signal and signal lamp variable condition that is provided with in the e, said priority signal processing unit, whether the prompting bus driver obtains next step situation of change of priority signal and signal lamp;
Said information display board control module control setting obtains the information of prior-release signal in the information display board prompting of prior-release direction;
Said information display board control setting shows the information that priority signal is provided for the other side's bus at the information display board of non-prior-release direction.
Further comprising the steps of:
F, said data comparing module continue real-time bus latitude and longitude coordinates information that receives of said data reception module and the crossing center longitude coordinate information in the said data memory module are compared in real time; When vehicle arrives the center, crossing, the public traffic in priority position is set is " 0 ".
In the said steps d, a plurality of monitoring points are set at the crossing, the distance between adjacent two said monitoring points is the distance that vehicle goes a second with this highway section speed limit;
Travel speed according to bus; When bus goes when very fast; When setting bus and arriving apart from monitoring point far away, crossing is that bus provides public transport priority signal; When bus goes when slow, be that bus provides public transport priority signal when setting bus and arriving apart from nearer monitoring point, crossing.
Among the said step b, utilize GPS locating module to obtain bus latitude and longitude coordinates information in real time and said bus latitude and longitude coordinates information is sent to said data reception module with communication function.
When bus and certain distance between a bit less than vehicle with this highway section speed limit go one second distance a half, think that bus arrives this point.
Among the said step e, said information display board is made up of four LED electronic displays that are arranged on place, crossing vehicle ' downstream direction;
Said information display board control module is sent " 1 " signal to the LED electronic display that is arranged on the prior-release direction, sends " 0 " signal to the LED electronic display that is arranged on the non-prior-release direction.
Among the said step e; Said Vehicular video display module also comprises a sounding submodule; Said priority signal processing unit also comprises audio processing modules, and said audio processing modules is the sound signal that said sounding submodule can be play with information, junction ahead signal lamp light color status information and information processing excess time whether bus obtains priority signal.
There is following beneficial effect in the present invention:
1, the board units among the present invention is except being sent to bus latitude and longitude coordinates information the command and control center; Also have the Vehicular video display module; When bus arrives the monitoring point; The command and control center is that bus can obtain the priority pass signal through this Vehicular video display module prompting bus driver when priority signal is provided immediately, makes the driver can make a response immediately, continues to go through the crossing or should wait for by ramp to stop; Simultaneously; Whether the information display board that is arranged at the downstream direction of place, crossing vehicle ' among the present invention can point out two drivers on the travel direction to have public transit vehicle to obtain priority signal; How signal lamp next step will change; And the vehicle driver on the both direction can make a response according to the information of information display board prompting immediately, continues to go through the crossing or should wait for by ramp to stop.
2, adopt the method for comparing bus latitude and longitude coordinates information and monitoring point latitude and longitude coordinates information in real time among the present invention; When bus can in time obtain the prior-release signal during near the crossing; And after bus obtains the prior-release signal; System continues bus latitude and longitude coordinates information and crossing center longitude coordinate information are compared, and when bus arrival center, crossing, system can in time obtain the bus signal through the crossing; Just can make next step signal lamp plan for adjustment according to the traffic information at current crossing rapidly, prevent to give normal traffic and affect greatly owing to public traffic in priority.
Description of drawings
Fig. 1 is a crossing according to the invention center electron map label method;
Fig. 2 is that system of the present invention constitutes;
Fig. 3 is a system program process flow diagram of the present invention;
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is set forth in detail.
Embodiment 1
Present embodiment provides a kind of signal priority control system that guarantees that public transport is unimpeded, comprising: board units, signal lamp control module, priority signal processing unit and information display board;
Said board units is arranged on the bus, comprising:
Vehicle location detection module: be used for confirming bus latitude and longitude coordinates information in real time and this latitude and longitude coordinates information being sent to the command and control center; In the present embodiment,
Said vehicle location detection module comprises the GPS locating module: the latitude and longitude coordinates information that is used for confirming in real time vehicle location; Data transmission module: be used for the latitude and longitude coordinates information of vehicle is sent to said data reception module.
Vehicular video display module: be used to point out bus driver junction ahead signal lamp state;
Said signal lamp control module is arranged at inside, command and control center, receives said bus latitude and longitude coordinates information in real time, judges position of bus and travel direction, the variation of control belisha beacon;
Said information display board is arranged at the downstream direction of place, crossing vehicle ', and each information display board has well-determined id information;
As shown in Figure 1, said information display board is arranged at the downstream direction of place, crossing vehicle ', and each information display board has well-determined id information; Along vehicle heading a plurality of monitoring points are set around the crossing, the distance that to be vehicle go a second with the speed limit in this highway section of the distance between adjacent two said monitoring points;
Said signal lamp control module as shown in Figure 2 comprises:
Data memory module: be used to store each crossing center longitude coordinate information, be arranged on crossing monitoring point latitude and longitude coordinates information on every side and the id information that is arranged at the information display board at place, crossing; Center, said crossing and monitoring point are confirmed on the electronic chart that has latitude and longitude coordinates information; By the said electronic chart that has latitude and longitude coordinates information said crossing center longitude coordinate information and monitoring point latitude and longitude coordinates information are provided, and with the stored in form of tables of data in said data memory module.
Data reception module: receive said bus latitude and longitude coordinates information in real time;
Data comparing module: the crossing center longitude coordinate information of storing in said bus latitude and longitude coordinates information and the said data memory module is compared, judge that whether vehicle is through the crossing;
The instruction output module: according to the comparison result of said data comparing module, output steering order control signal lamp changes, and when bus obtains priority signal, the information of priority signal and signal lamp variable condition is sent to said priority signal processing unit;
Said priority signal processing unit is arranged at inside, command and control center; It comprises video processing module; Be used for being sent to said Vehicular video display module after the information processing with priority signal and signal lamp variable condition, whether said Vehicular video display module prompting bus driver obtains next step situation of change of priority signal and signal lamp;
Be provided with information display board control module in the said priority signal processing unit, whether said information display board control module is according to having bus to obtain the priority pass signal, and the said information display board of control different directions shows below information:
The information display board prompting and command control center that is provided with on the prior-release direction is for the bus of this direction running provides priority signal, and vehicle can normally pass through the crossing;
The information display board prompting and command control center that is provided with on the non-prior-release direction needs ramp to stop to wait for for the other direction bus provides priority signal.
In the present embodiment, said information display board is made up of four LED electronic displays that are arranged on place, crossing vehicle ' downstream direction;
During said information display board control module output control signal " 1 " to said LED electronic display, the information of said LED electronic display screen displays prior-release signal;
During said information display board control module output control signal " 0 " to said LED electronic display, said LED electronic display screen displays the other side vehicle obtains the information of prior-release signal.
Present embodiment also provides a kind of signal priority control method that guarantees that public transport is unimpeded, may further comprise the steps:
A, the utilization of signal lamp control module have the electronic chart of latitude and longitude coordinates information, obtain the latitude and longitude coordinates information of each center, crossing and position, monitoring point, with the stored in form of tables of data in data memory module; Downstream direction in each place, crossing vehicle ' is provided with the information display board with unique definite id information, also stores the id information of the information display board that is arranged at the place, crossing in the said tables of data;
As shown in Figure 1, a plurality of monitoring points are set at the crossing, the distance between adjacent two said monitoring points is the distance that vehicle goes a second with this highway section speed limit;
B, vehicle location detection module obtain bus latitude and longitude coordinates information in real time, are sent to the data reception module of signal lamp control module;
As preferred embodiment, the GPS locating module with communication function capable of using obtains bus latitude and longitude coordinates information in real time and said bus latitude and longitude coordinates information is sent to said data reception module;
C, data comparing module are compared the crossing center longitude coordinate information in bus latitude and longitude coordinates information in the said data reception module and the said data memory module in real time, judge that whether bus is near the crossing;
D, confirm that bus is near the crossing after; The data comparing module is compared the latitude and longitude coordinates information of said bus latitude and longitude coordinates information and said monitoring point in real time; When vehicle arrives the monitoring point; The data comparing module is to instruction output module sending controling instruction, and instruction output module control belisha beacon is that bus provides the green light all-clear and the public traffic in priority position is set and is " 1 "; Said instruction output module is sent to the priority signal processing unit with the information of priority signal and signal lamp variable condition simultaneously;
Judging whether vehicle arrives certain when a bit, when bus and certain distance between a bit less than vehicle with this highway section speed limit go one second distance a half, think that bus arrives this point;
Be sent to said Vehicular video display module after the information processing of video processing module with priority signal and signal lamp variable condition that is provided with in the e, said priority signal processing unit, whether the prompting bus driver obtains next step situation of change of priority signal and signal lamp;
Said information display board control module control setting obtains the information of prior-release signal in the information display board prompting of prior-release direction;
Said information display board control setting shows the information that priority signal is provided for the other side's bus at the information display board of non-prior-release direction;
In the present embodiment, said information display board is made up of four LED electronic displays that are arranged on place, crossing vehicle ' downstream direction;
Said information display board control module is sent " 1 " signal to the LED electronic display that is arranged on the prior-release direction, sends " 0 " signal to the LED electronic display that is arranged on the non-prior-release direction;
Also comprise the steps present embodiment f, said data comparing module continue real-time bus latitude and longitude coordinates information that receives of said data reception module and the crossing center longitude coordinate information in the said data memory module are compared in real time; When vehicle arrives the center, crossing, the public traffic in priority position is set is " 0 ".
The course of work of this bus signals lamp priority control system is:
At first, for each belisha beacon is numbered 1～M, adopt electronic chart to obtain each crossing center longitude coordinate information (x
m, y
m) monitoring point latitude and longitude coordinates information (x on (wherein horizontal ordinate is represented longitude, and ordinate is represented latitude value, and m represents the m crossing) and each crossing four direction
Mn, y
Mn) (wherein horizontal ordinate is represented longitude; Ordinate is represented latitude value; Subscript m and n represent the coordinate information of n the monitoring point at m crossing) and with the stored in form of tables of data in said data memory module, m intersection information storage mode shown in Figure 1 is as shown in the table:
In the process that public transit vehicle is advanced, confirm the once latitude and longitude coordinates information (x of said vehicle among the every separated 1s of said GPS locating module
k, y
k), then utilize data transmission module to send this latitude and longitude coordinates information in the data processing unit data reception module.
The data comparing module is with said vehicle latitude and longitude coordinates information (x
k, y
k) with said data memory module in tables of data in each crossing center longitude coordinate information (x
m, y
m) compare, and then confirm whether said vehicle is more and more nearer apart from the crossing.
Judge vehicle near the crossing after, the data comparing module is with said vehicle latitude and longitude coordinates information (x
k, y
k) with said data memory module in tables of data in monitoring point latitude and longitude coordinates information (x
Mn, y
Mn) compare, according to the position, monitoring point that vehicle arrives, the all-clear of different directions is provided for vehicle.Consider the time delay of signals transmission,, think that vehicle arrives this monitoring point, when vehicle latitude and longitude coordinates information equals (x when the distance between vehicle and the monitoring point during less than L/2
Mn, y
Mn) time; Can confirm that then vehicle arrives n the monitoring point at m crossing; Signal lamp control module control this moment m belisha beacon is that vehicle is opened green light, the public traffic in priority position is set is " 1 ", and said priority signal processing unit comprises video processing module simultaneously; After junction ahead signal lamp light color status information and information processing excess time be the video information that can play of said Vehicular video display module, be prompted to the driver by said Vehicular video display module.And the information display board control module display board display message corresponding that the priority signal processing unit is inner according to the clearance phase control, as shown in Figure 1, the North and South direction at each crossing is provided with the information display board and is designated a and b, and id information is ma, mb; The identification number that each crossing east-west direction is provided with the information display board is c and d, and id information is mc, md.If North and South direction is let pass, then information display board control module transmits control signal " 1 " to information display board a and b, and prompting obtains the information of prior-release signal; Transmit control signal " 0 " to information display board c and d, show the information that priority signal is provided for the other side's bus.Then the driver of both direction obtain can confirm after the prompting oneself can be normally through crossing waits of still need stopping, for next step action is got ready.The data comparing module continues said vehicle latitude and longitude coordinates information (x
k, y
k) with said data memory module in tables of data in crossing center longitude coordinate information (x
m, y
m) compare, when the distance at vehicle and center, crossing during, think that vehicle arrives the center, crossing less than L/2, the green light of signal lamp control module control this moment vehicle heading becomes amber light, the public traffic in priority position is set is " 0 ".
Embodiment 2
In the present embodiment; In order to make bus obtain green light signals in suitable position, and can be because of the monitoring point apart from the center, crossing too far or too near and not cause normal traffic to be affected excessive, as shown in Figure 2; A plurality of monitoring points are set at the crossing; Because GPS is every at a distance from 1s to the positional information locking of vehicle once, therefore the distance between the adjacent monitoring point makes that for the ultimate range L that public transit vehicle goes p.s. the positional information of each monitoring point all is effective information.Travel speed according to vehicle; When vehicle ' is very fast; When setting vehicle and arriving apart from monitoring point far away, crossing is that vehicle provides priority signal, when vehicle ' is slow, is that vehicle provides priority signal when setting vehicle and arriving apart from nearer monitoring point, crossing.
Embodiment 3
In the present embodiment; Said Vehicular video display module also comprises a sounding submodule; In the corresponding said priority signal processing unit audio processing modules is set, the signal lamp status information of vehicle heading is treated to the sound signal that said sounding submodule can be play, play this sound signal by said sounding submodule and whether can pass through the crossing with the prompting driver; For example can play " passing through "; The driver just learns and oneself can give it the gun through the crossing, plays and passes through the crossing after " waiting for 3 seconds " driver just must wait for 3 seconds, just can slow down and go slowly.
Though the present invention has carried out detailed elaboration through embodiment to it; But; Any form that does not exceed the claim protection domain that those skilled in the art should be understood that on this basis to be made and the variation of details all belong to invention which is intended to be protected.
Claims (13)
1. a signal priority control system that guarantees that public transport is unimpeded comprises: board units, signal lamp control module, priority signal processing unit and information display board;
Said board units is arranged on the bus, comprising:
Vehicle location detection module: be used for confirming bus latitude and longitude coordinates information in real time and this latitude and longitude coordinates information being sent to the command and control center;
Vehicular video display module: be used to point out bus driver junction ahead signal lamp state;
Said signal lamp control module is arranged at inside, command and control center, receives said bus latitude and longitude coordinates information in real time, judges position of bus and travel direction, the variation of control belisha beacon;
It is characterized in that:
Said information display board is arranged at the downstream direction of place, crossing vehicle ', and each information display board has well-determined id information;
Said signal lamp control module comprises:
Data memory module: be used to store each crossing center longitude coordinate information, be arranged on crossing monitoring point latitude and longitude coordinates information on every side and the id information that is arranged at the information display board at place, crossing;
Data reception module: receive said bus latitude and longitude coordinates information in real time;
Data comparing module: the crossing center longitude coordinate information of storing in said bus latitude and longitude coordinates information and the said data memory module is compared, judge that whether vehicle is through the crossing;
The instruction output module: according to the comparison result of said data comparing module, output steering order control signal lamp changes, and when bus obtains priority signal, the information of priority signal and signal lamp variable condition is sent to said priority signal processing unit;
Said priority signal processing unit is arranged at inside, command and control center; It comprises video processing module; Be used for being sent to said Vehicular video display module after the information processing with priority signal and signal lamp variable condition, whether said Vehicular video display module prompting bus driver obtains next step situation of change of priority signal and signal lamp;
Be provided with information display board control module in the said priority signal processing unit, whether said information display board control module is according to having bus to obtain the priority pass signal, and the said information display board of control different directions shows below information:
The information display board prompting and command control center that is provided with on the prior-release direction is for the bus of this direction running provides priority signal, and vehicle can normally pass through the crossing;
The information display board prompting and command control center that is provided with on the non-prior-release direction needs ramp to stop to wait for for the other direction bus provides priority signal.
2. the signal priority control system that assurance public transport according to claim 1 is unimpeded is characterized in that:
Said vehicle location detection module comprises
GPS locating module: the latitude and longitude coordinates information that is used for confirming in real time vehicle location;
Data transmission module: be used for the latitude and longitude coordinates information of vehicle is sent to said data reception module.
3. the signal priority control system that assurance public transport according to claim 1 and 2 is unimpeded is characterized in that:
Along vehicle heading a plurality of monitoring points are set around the crossing, the distance that to be vehicle go a second with the speed limit in this highway section of the distance between adjacent two said monitoring points.
4. the signal priority control system that assurance public transport according to claim 3 is unimpeded is characterized in that:
Center, said crossing and monitoring point are confirmed on the electronic chart that has latitude and longitude coordinates information; By the said electronic chart that has latitude and longitude coordinates information said crossing center longitude coordinate information and monitoring point latitude and longitude coordinates information are provided, and with the stored in form of tables of data in said data memory module.
5. according to the unimpeded signal priority control system of the arbitrary described assurance public transport of claim 1-4, it is characterized in that:
Said information display board is made up of four LED electronic displays that are arranged on place, crossing vehicle ' downstream direction;
During said information display board control module output control signal " 1 " to said LED electronic display, the information of said LED electronic display screen displays prior-release signal;
During said information display board control module output control signal " 0 " to said LED electronic display, said LED electronic display screen displays the other side vehicle obtains the information of prior-release signal.
6. according to the unimpeded signal priority control system of the arbitrary described assurance public transport of claim 1-5, it is characterized in that:
Said Vehicular video display module also comprises a sounding submodule; Said priority signal processing unit also comprises audio processing modules, and said audio processing modules is the sound signal that said sounding submodule can be play with junction ahead signal lamp light color status information and information processing excess time.
7. signal priority control method that guarantees that public transport is unimpeded is characterized in that:
May further comprise the steps:
A, the utilization of signal lamp control module have the electronic chart of latitude and longitude coordinates information, obtain the latitude and longitude coordinates information of each center, crossing and position, monitoring point, with the stored in form of tables of data in data memory module; Downstream direction in each place, crossing vehicle ' is provided with the information display board with unique definite id information, also stores the id information of the information display board that is arranged at the place, crossing in the said tables of data;
B, vehicle location detection module obtain bus latitude and longitude coordinates information in real time, are sent to the data reception module of signal lamp control module;
C, data comparing module are compared the bus latitude and longitude coordinates information of said data reception module reception and the crossing center longitude coordinate information in the said data memory module in real time, judge that whether bus is near the crossing;
D, confirm that bus is near the crossing after; The data comparing module is compared the latitude and longitude coordinates information of said bus latitude and longitude coordinates information and said monitoring point in real time; When vehicle arrives the monitoring point; The data comparing module is to instruction output module sending controling instruction, and instruction output module control belisha beacon is that bus provides the green light all-clear and the public traffic in priority position is set and is " 1 "; Said instruction output module is sent to the priority signal processing unit with the information of priority signal and signal lamp variable condition simultaneously;
Be sent to said Vehicular video display module after the information processing of video processing module with priority signal and signal lamp variable condition that is provided with in the e, said priority signal processing unit, whether the prompting bus driver obtains next step situation of change of priority signal and signal lamp;
Said information display board control module control setting obtains the information of prior-release signal in the information display board prompting of prior-release direction;
Said information display board control setting shows the information that priority signal is provided for the other side's bus at the information display board of non-prior-release direction.
8. the signal priority control method that assurance public transport according to claim 7 is unimpeded is characterized in that:
Further comprising the steps of:
F, said data comparing module continue real-time bus latitude and longitude coordinates information that receives of said data reception module and the crossing center longitude coordinate information in the said data memory module are compared in real time; When vehicle arrives the center, crossing, the public traffic in priority position is set is " 0 ".
9. according to claim 7 or the unimpeded signal priority control method of 8 described assurance public transport, it is characterized in that:
In the said steps d, a plurality of monitoring points are set at the crossing, the distance between adjacent two said monitoring points is the distance that vehicle goes a second with this highway section speed limit;
Travel speed according to bus; When bus goes when very fast; When setting bus and arriving apart from monitoring point far away, crossing is that bus provides public transport priority signal; When bus goes when slow, be that bus provides public transport priority signal when setting bus and arriving apart from nearer monitoring point, crossing.
10. according to the unimpeded signal priority control method of the arbitrary described assurance public transport of claim 7-9, it is characterized in that:
Among the said step b, utilize GPS locating module to obtain bus latitude and longitude coordinates information in real time and said bus latitude and longitude coordinates information is sent to said data reception module with communication function.
11. the signal priority control method that assurance public transport according to claim 10 is unimpeded is characterized in that:
When bus and certain distance between a bit less than vehicle with this highway section speed limit go one second distance a half, think that bus arrives this point.
12. the unimpeded signal priority control method of arbitrary according to Claim 8-11 described assurance public transport is characterized in that:
Among the said step e, said information display board is made up of four LED electronic displays that are arranged on place, crossing vehicle ' downstream direction;
Said information display board control module is sent " 1 " signal to the LED electronic display that is arranged on the prior-release direction, sends " 0 " signal to the LED electronic display that is arranged on the non-prior-release direction.
13. the unimpeded signal priority control method of arbitrary according to Claim 8-12 described assurance public transport is characterized in that:
Among the said step e; Said Vehicular video display module also comprises a sounding submodule; Said priority signal processing unit also comprises audio processing modules, and said audio processing modules is the sound signal that said sounding submodule can be play with information, junction ahead signal lamp light color status information and information processing excess time whether bus obtains priority signal.
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| CN 201110337039 CN102402863B (en) | 2011-10-28 | 2011-10-28 | Signal priority control system and method for ensuring bus circulation |
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