CN105679035A - Power distribution box-based flash lamp duration time control platform - Google Patents
Power distribution box-based flash lamp duration time control platform Download PDFInfo
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- CN105679035A CN105679035A CN201610180525.7A CN201610180525A CN105679035A CN 105679035 A CN105679035 A CN 105679035A CN 201610180525 A CN201610180525 A CN 201610180525A CN 105679035 A CN105679035 A CN 105679035A
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- flash lamp
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- traffic intersection
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/0116—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from roadside infrastructure, e.g. beacons
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/66—Remote control of cameras or camera parts, e.g. by remote control devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
Abstract
The invention relates to a power distribution box-based flash lamp duration time control platform for a peccancy shooting device near a traffic intersection, which comprises a power distribution box main body, a light intensity detector, a high-definition camera, a DSP processing chip, a power distribution box communication interface and a flash lamp control device, wherein the light intensity detector, the high-definition camera, the DSP processing chip and the power distribution box communication interface are arranged at the power distribution box position; the flash lamp control device is arranged at the far end of the power distribution box; the light intensity detector, the high-definition camera, and the DSP processing chip are used for extracting the number of vehicles at the traffic intersection and sending the number to the flash lamp control device via the power distribution box communication interface; and the flash lamp control device is used for determining the flash lamp duration time of the peccancy shooting device near the traffic intersection based on the number of vehicles at the traffic intersection. Thus, with the power distribution box at the traffic intersection as an acquisition terminal, the flash lamp duration time of the peccancy shooting device is adpatviely controlled.
Description
Technical field
The present invention relates to distribution box field, particularly relate to a kind of flash lamp persistent period parametric controller based on distribution box.
Background technology
Automobile, while bringing convenience for people, there is also certain drawback. Process outside the air pollution that brings of motor vehicle emission and noise, the casualties that most distinct issues are brought no more than vehicle accident, according to statistics, the annual whole world because the death toll that causes of vehicle accident more than annual because the number of cancer and death. Wherein, break in traffic rules and regulations behavior is the main cause causing vehicle accident.
Break in traffic rules and regulations behavior is the size of role in accident occurs, and mainly according to right of way principle and what security doctrine judged, and right of way principle is to assert the cardinal principle of traffic accident responsibility size. Break in traffic rules and regulations behavior mainly has following several classification: (1) violates regulation of taking their own roads; (2) regulation that gives way is violated; (3) violate the traffic regulations miscellaneous stipulations; (4) traffic safety principle is violated.
In order to the break in traffic rules and regulations behavior of driver is punished and guarded against, first have to effectively detect the break in traffic rules and regulations behavior of driver. In prior art, a kind of commonly used detection mode is by disposing capture apparatus violating the regulations that vehicular traffic is carried out peccancy detection in traffic intersection position, in order to avoid vehicle leakage being clapped in road peak period, needing to arrange fixing, the shorter flash lamp persistent period shoots one by one to vehicular traffic, but this style of shooting easily causes when vehicle fleet size is few, the waste to shooting time.
Therefore, need a kind of new shoot control system violating the regulations, utilize the distribution box of existing traffic intersection, transform to increase on-site data gathering equipment and field data communication equipment to it, be simultaneously introduced the flash lamp being arranged on far-end and control the equipment realization Self Adaptive Control to the flash lamp persistent period of each capture apparatus violating the regulations neighbouring.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of flash lamp persistent period parametric controller based on distribution box, in order to save Urban spatial recourses, transform the existing distribution box at each traffic intersection place, integrated multiple image processing equipment is to identify the vehicle fleet size at corresponding traffic intersection place, integrated wireless communications equipment is to be wirelessly transferred vehicle fleet size and traffic intersection address simultaneously, more crucially, introduce flash lamp and control equipment to realize the intelligentized control method of the flash lamp persistent period to the capture apparatus violating the regulations of each near traffic intersection address based on vehicle fleet size.
According to an aspect of the present invention, provide a kind of flash lamp persistent period parametric controller based on distribution box, for the capture apparatus violating the regulations near traffic intersection, described platform includes distribution box main body, intensity of illumination detector, high-definition camera, DSP processes chip, distribution box communication interface and flash lamp control equipment, intensity of illumination detector, high-definition camera, DSP processes chip and distribution box communication interface is all disposed within distribution box position, flash lamp controls equipment and is arranged on the far-end of distribution box, intensity of illumination detector, high-definition camera and DSP process chip for extracting the vehicle fleet size of traffic intersection, and it is sent to flash lamp control equipment by distribution box communication interface, flash lamp controls equipment for determining the flash lamp persistent period of the capture apparatus violating the regulations near traffic intersection based on the vehicle fleet size of traffic intersection.
More specifically, described based in the flash lamp persistent period parametric controller of distribution box, including: distribution box main body, including casing, aerofluxus louvre, air inlet, earth point, control panel, insulating bushing, mounting base and multiple leg, casing adopts thickness to be the cold-rolled steel sheet of 1.5 millimeters and have stiffened panel and floor, aerofluxus louvre is arranged on the top of casing, and air inlet is arranged on the lower section of casing, earth point is arranged on the medial wall of casing, is made up of weld tabs, screw and packing ring, for being connected with casing by earth lead, control panel is arranged on casing lateral wall, multiple legs are for being connected mounting base with casing, and insulating bushing is arranged between mounting base and casing, intensity of illumination detector, is arranged on casing lateral wall, for detecting the real-time lighting intensity of traffic intersection position, determines and export the intensity of illumination grade of correspondence according to real-time lighting intensity, high-definition camera, is arranged on casing lateral wall, and for traffic intersection is shot, to obtain high definition crossing image, the resolution of high definition crossing image is 1920 × 1080, Compact Flash, it is arranged in casing, for prestoring multiple benchmark intensity of illumination crossings image, the corresponding intensity of illumination grade of each benchmark intensity of illumination crossing image, each benchmark intensity of illumination crossing image is that traffic intersection is carried out shooting the image obtained in advance by high-definition camera under without any vehicle-state under corresponding intensity of illumination grade, Compact Flash is additionally operable to prestore traffic intersection address, binary-state threshold, aspect ratio range and symmetry scope, aspect ratio range is the scope added up after multiple benchmark vehicle images carry out aspect ratio calculating, symmetry ranges for multiple benchmark vehicle images are carried out the scope of statistics after symmetry calculating, Foreground selection equipment, it is arranged in casing, being connected respectively with intensity of illumination detector and Compact Flash, the intensity of illumination grade based on the output of current time intensity of illumination detector is found the benchmark intensity of illumination crossing image of correspondence in Compact Flash and exports as target background image, live image splitting equipment, it is arranged in casing, with high-definition camera, Compact Flash and Foreground selection equipment connect respectively, high definition crossing image and the high definition crossing image of current time upper one second of current time is received by high-definition camera, respectively as the first high definition crossing image and the second high definition crossing image, the gray value of each pixel of the first high definition crossing image is deducted the gray value of the pixel of correspondence position in the second high definition crossing image and takes absolute value to obtain image difference absolute value, when image difference absolute value is be more than or equal to binary-state threshold, the respective pixel of the first high definition crossing image is confirmed as active pixel, otherwise, the respective pixel of the first high definition crossing image is confirmed as static pixel, the image of all active pixel composition in first high definition crossing image is exported as live image, live image is made up of one or more zones of action, morphological image processes equipment, it is arranged in casing, it is connected with live image splitting equipment, for receiving live image, and each zone of action is carried out denoising to obtain denoising subimage, fill up denoising subimage interior void and connect in denoising subimage breakpoint to obtain shaping subimage, export one or more shaping subimage, feature extracting device, it is arranged in casing, process equipment with morphological image to be connected, extract the horizontal maximum number of pixels of each shaping subimage and longitudinal maximum number of pixels, by longitudinal direction maximum number of pixels divided by horizontal maximum number of pixels to obtain aspect ratio, and calculate the symmetry of each shaping subimage, DSP processes chip, it is arranged in casing, it is connected respectively with feature extracting device and Compact Flash, the aspect ratio of each shaping subimage and symmetry are compared with aspect ratio range and symmetry scope respectively, when the aspect ratio of shaping subimage drops in aspect ratio range and symmetry drops on symmetry scope, corresponding shaping subimage is confirmed as vehicle subimage, calculates the number of vehicle subimage and exports as vehicle fleet size,Distribution box communication interface, is arranged on casing lateral wall, processes chip with DSP and Compact Flash is connected respectively, receives vehicle fleet size and traffic intersection address, and is sent vehicle fleet size and traffic intersection address by wireless communication link; Flash lamp controls equipment, it is arranged on far-end, communication interface and photoflash controller is controlled including flash lamp, flash lamp controls communication interface for being received vehicle fleet size and traffic intersection address by wireless communication link, photoflash controller controls communication interface with flash lamp and is connected, for determining the flash lamp persistent period of capture apparatus violating the regulations near traffic intersection address based on vehicle fleet size, and based on traffic intersection address, the flash lamp persistent period determined is sent to the capture apparatus violating the regulations of each near traffic intersection address by flash lamp control communication interface; Wherein, morphological image process equipment, live image splitting equipment and feature extracting device are respectively adopted different CPLD chips and realize.
More specifically, also include: connecting terminal block based in the flash lamp persistent period parametric controller of distribution box described, it is connected with simulation input interface and digital input interface.
More specifically, described based in the flash lamp persistent period parametric controller of distribution box: connecting terminal block is arranged in casing.
More specifically, described based in the flash lamp persistent period parametric controller of distribution box: vehicle fleet size is more many, and the flash lamp persistent period of capture apparatus violating the regulations is more short.
More specifically, described based in the flash lamp persistent period parametric controller of distribution box: morphological image processes equipment, live image splitting equipment and feature extracting device and is integrated on one piece of surface-mounted integrated circuit.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram of the flash lamp persistent period parametric controller based on distribution box illustrated according to an embodiment of the present invention.
Accompanying drawing labelling: 1 distribution box main body; 2 intensity of illumination detectors; 3 high-definition cameras; 4DSP processes chip; 5 distribution box communication interfaces; 6 flash lamies control equipment
Detailed description of the invention
Below with reference to accompanying drawings the embodiment based on the flash lamp persistent period parametric controller of distribution box of the present invention is described in detail.
Break in traffic rules and regulations easily causes road traffic accident. Road traffic accident refer to the human pilot of vehicle, pedestrian, by bus personnel and other on road, carry out the movable personnel relevant with traffic, because violating traffic control rules, regulations, fault causes the accident of personal injury or property loss. Traffic accident responsibility person according to born traffic accident responsibility, should undertake corresponding liability to pay compensation. Assert that the principle of road traffic accident responsibility has following three points: 1, client has act of violating regulations. Namely the client of vehicle accident has the behavior violating road traffic laws and regulations, the act of violating regulations being namely commonly called as. As being absent from act of violating regulations, just it is not belonging to vehicle accident; 2, there is cause effect relation between act of violating regulations and harmful consequences. Have causal between break in traffic rules and regulations behavior and vehicle accident, negative to answer traffic accident responsibility. Though client does not have act of violating regulations or has act of violating regulations, but act of violating regulations and vehicle accident noncausal relationship, not negative traffic accident responsibility; 3, the size that client's act of violating regulations acts in vehicle accident, assert that client should bear the size of traffic accident responsibility.
As can be seen here, in order to avoid the generation of road traffic accident, first have to check break in traffic rules and regulations behavior severely, road traffic accident is stifled in the cradle.The detection of break in traffic rules and regulations behavior has several ways at present: 1, adopt photographic head violating the regulations that various break in traffic rules and regulations behaviors are investigated and prosecuted; 2, carry out fixed point the position arrangement law enfrocement official that vehicle is many to investigate and prosecute; 3, public's strength is utilized to carry out the report of various break in traffic rules and regulations behavior. Wherein, the mode detection efficiency of photographic head violating the regulations is the highest, can save cost of labor in a large number simultaneously, is the main investigation pattern of each city favor at present.
Owing to photographic head violating the regulations is generally arranged at the top of traffic intersection, the vehicle in each track is carried out the identification of act of violating regulations detection and vehicles peccancy, but the vehicle of traffic intersection position is numerous, detection the limited time to each car, the flash lamp persistent period of capture apparatus violating the regulations have to be maintained in a very short time interval and could complete the peccancy detection to each car rush hour at road.
In prior art, the flash lamp persistent period of the capture apparatus violating the regulations that city traffic control department uses is fixing, to adapt to the demand of road peak period, but, when non-rice habitats peak, when namely vehicle is considerably less, if also adopting the flash lamp persistent period fixing, very short, then there is capture apparatus violating the regulations to be for a long time likely to be at idle condition, and these times can be used to all assign on each vehicular traffic originally, to promote the definition of shooting image.
In order to overcome above-mentioned deficiency, the present invention has built a kind of flash lamp persistent period parametric controller based on distribution box, real-time data acquisition platform can be set up at each traffic intersection, the vehicular traffic data of traffic intersection are carried out accurate acquisition, and the flash lamp persistent period being neighbouring capture apparatus violating the regulations based on the vehicular traffic number of traffic intersection provides reference, thus searching out a suitable equilibrium point between shooting time resource and shooting image definition.
Fig. 1 is the block diagram of the flash lamp persistent period parametric controller based on distribution box illustrated according to an embodiment of the present invention, described platform is for the capture apparatus violating the regulations near traffic intersection, including distribution box main body, intensity of illumination detector, high-definition camera, DSP processes chip, distribution box communication interface and flash lamp control equipment, intensity of illumination detector, high-definition camera, DSP processes chip and distribution box communication interface is all disposed within distribution box position, flash lamp controls equipment and is arranged on the far-end of distribution box, intensity of illumination detector, high-definition camera and DSP process chip for extracting the vehicle fleet size of traffic intersection, and it is sent to flash lamp control equipment by distribution box communication interface, flash lamp controls equipment for determining the flash lamp persistent period of the capture apparatus violating the regulations near traffic intersection based on the vehicle fleet size of traffic intersection.
Then, continue the concrete structure based on the flash lamp persistent period parametric controller of distribution box of the present invention is further detailed.
Described platform includes: distribution box main body, including casing, aerofluxus louvre, air inlet, earth point, control panel, insulating bushing, mounting base and multiple leg; Casing adopts thickness to be the cold-rolled steel sheet of 1.5 millimeters and have stiffened panel and floor; Aerofluxus louvre is arranged on the top of casing, and air inlet is arranged on the lower section of casing.
Earth point is arranged on the medial wall of casing, is made up of weld tabs, screw and packing ring, for being connected with casing by earth lead; Control panel is arranged on casing lateral wall; Multiple legs are for being connected mounting base with casing, and insulating bushing is arranged between mounting base and casing.
Described platform includes: intensity of illumination detector, is arranged on casing lateral wall, for detecting the real-time lighting intensity of traffic intersection position, determines and export the intensity of illumination grade of correspondence according to real-time lighting intensity;High-definition camera, is arranged on casing lateral wall, and for traffic intersection is shot, to obtain high definition crossing image, the resolution of high definition crossing image is 1920 × 1080.
Described platform includes: Compact Flash, it is arranged in casing, for prestoring multiple benchmark intensity of illumination crossings image, the corresponding intensity of illumination grade of each benchmark intensity of illumination crossing image, each benchmark intensity of illumination crossing image is that traffic intersection is carried out shooting the image obtained in advance by high-definition camera under without any vehicle-state under corresponding intensity of illumination grade, Compact Flash is additionally operable to prestore traffic intersection address, binary-state threshold, aspect ratio range and symmetry scope, aspect ratio range is the scope added up after multiple benchmark vehicle images carry out aspect ratio calculating, symmetry ranges for multiple benchmark vehicle images are carried out the scope of statistics after symmetry calculating, Foreground selection equipment, it is arranged in casing, being connected respectively with intensity of illumination detector and Compact Flash, the intensity of illumination grade based on the output of current time intensity of illumination detector is found the benchmark intensity of illumination crossing image of correspondence in Compact Flash and exports as target background image.
Described platform includes: live image splitting equipment, it is arranged in casing, with high-definition camera, Compact Flash and Foreground selection equipment connect respectively, high definition crossing image and the high definition crossing image of current time upper one second of current time is received by high-definition camera, respectively as the first high definition crossing image and the second high definition crossing image, the gray value of each pixel of the first high definition crossing image is deducted the gray value of the pixel of correspondence position in the second high definition crossing image and takes absolute value to obtain image difference absolute value, when image difference absolute value is be more than or equal to binary-state threshold, the respective pixel of the first high definition crossing image is confirmed as active pixel, otherwise, the respective pixel of the first high definition crossing image is confirmed as static pixel, the image of all active pixel composition in first high definition crossing image is exported as live image, live image is made up of one or more zones of action.
Described platform includes: morphological image processes equipment, it is arranged in casing, it is connected with live image splitting equipment, for receiving live image, and each zone of action is carried out denoising to obtain denoising subimage, fill up denoising subimage interior void and connect in denoising subimage breakpoint to obtain shaping subimage, export one or more shaping subimage.
Described platform includes: feature extracting device, it is arranged in casing, process equipment with morphological image to be connected, extract the horizontal maximum number of pixels of each shaping subimage and longitudinal maximum number of pixels, by longitudinal direction maximum number of pixels divided by horizontal maximum number of pixels to obtain aspect ratio, and calculate the symmetry of each shaping subimage.
Described platform includes: DSP processes chip, it is arranged in casing, it is connected respectively with feature extracting device and Compact Flash, the aspect ratio of each shaping subimage and symmetry are compared with aspect ratio range and symmetry scope respectively, when the aspect ratio of shaping subimage drops in aspect ratio range and symmetry drops on symmetry scope, corresponding shaping subimage is confirmed as vehicle subimage, calculates the number of vehicle subimage and exports as vehicle fleet size.
Described platform includes: distribution box communication interface, is arranged on casing lateral wall, processes chip with DSP and Compact Flash is connected respectively, receives vehicle fleet size and traffic intersection address, and is sent vehicle fleet size and traffic intersection address by wireless communication link.
Described platform includes: flash lamp controls equipment, it is arranged on far-end, communication interface and photoflash controller is controlled including flash lamp, flash lamp controls communication interface for being received vehicle fleet size and traffic intersection address by wireless communication link, photoflash controller controls communication interface with flash lamp and is connected, for determining the flash lamp persistent period of capture apparatus violating the regulations near traffic intersection address based on vehicle fleet size, and based on traffic intersection address, the flash lamp persistent period determined is sent to the capture apparatus violating the regulations of each near traffic intersection address by flash lamp control communication interface.
Wherein, morphological image process equipment, live image splitting equipment and feature extracting device are respectively adopted different CPLD chips and realize.
Alternatively, in described platform, also include: connecting terminal block, be connected with simulation input interface and digital input interface; Connecting terminal block is arranged in casing; Vehicle fleet size is more many, and the flash lamp persistent period of capture apparatus violating the regulations is more short; And morphological image processes equipment, live image splitting equipment and feature extracting device and can be integrated on one piece of surface-mounted integrated circuit.
It addition, dsp chip, also referred to as digital signal processor, being a kind of microprocessor being particularly suitable for carrying out Digital Signal Processing computing, it is mainly applied is realize various digital signal processing algorithm real-time.
Requirement according to Digital Signal Processing, dsp chip generally has following main feature: (1) can complete a multiplication and a sub-addition within an instruction cycle; (2) program and data space is separately, it is possible to access instruction and data simultaneously; (3) there is quick RAM in sheet, generally can pass through independent data/address bus and access in two pieces simultaneously; (4) there is low overhead or without overhead loop and the hardware supported that redirects; (5) quickly interrupt processing and Hardware I/O support; (6) there are multiple hardware address generators of operation within the monocycle; (7) can the multiple operation of executed in parallel; (8) supporting pile line operation, making fetching, decoding and execution etc. operate can Overlapped Execution.
Adopt the flash lamp persistent period parametric controller based on distribution box of the present invention, for prior art technical problem of capture apparatus waste taking photos by using flashlights time violating the regulations when vehicle is few, by transforming the distribution box of existing traffic intersection, it can be used as data acquisition and data communication platform, it is simultaneously introduced flash lamp and controls equipment to determine the flash lamp persistent period of capture apparatus violating the regulations based on the real-time vehicle quantity collected, thus farthest utilizing the taking photos by using flashlights time resource of capture apparatus violating the regulations.
Although it is understood that the present invention discloses as above with preferred embodiment, but above-described embodiment is not limited to the present invention. For any those of ordinary skill in the art, without departing under technical solution of the present invention ambit, all may utilize the technology contents of the disclosure above and technical solution of the present invention is made many possible variations and modification, or be revised as the Equivalent embodiments of equivalent variations. Therefore, every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still falls within the scope of technical solution of the present invention protection.
Claims (6)
1. the flash lamp persistent period parametric controller based on distribution box, for the capture apparatus violating the regulations near traffic intersection, described platform includes distribution box main body, intensity of illumination detector, high-definition camera, DSP processes chip, distribution box communication interface and flash lamp control equipment, intensity of illumination detector, high-definition camera, DSP processes chip and distribution box communication interface is all disposed within distribution box position, flash lamp controls equipment and is arranged on the far-end of distribution box, intensity of illumination detector, high-definition camera and DSP process chip for extracting the vehicle fleet size of traffic intersection, and it is sent to flash lamp control equipment by distribution box communication interface, flash lamp controls equipment for determining the flash lamp persistent period of the capture apparatus violating the regulations near traffic intersection based on the vehicle fleet size of traffic intersection.
2. the flash lamp persistent period parametric controller based on distribution box as claimed in claim 1, it is characterised in that described platform includes:
Distribution box main body, including casing, aerofluxus louvre, air inlet, earth point, control panel, insulating bushing, mounting base and multiple leg;
Casing adopts thickness to be the cold-rolled steel sheet of 1.5 millimeters and have stiffened panel and floor;
Aerofluxus louvre is arranged on the top of casing, and air inlet is arranged on the lower section of casing;
Earth point is arranged on the medial wall of casing, is made up of weld tabs, screw and packing ring, for being connected with casing by earth lead;
Control panel is arranged on casing lateral wall;
Multiple legs are for being connected mounting base with casing, and insulating bushing is arranged between mounting base and casing;
Intensity of illumination detector, is arranged on casing lateral wall, for detecting the real-time lighting intensity of traffic intersection position, determines and export the intensity of illumination grade of correspondence according to real-time lighting intensity;
High-definition camera, is arranged on casing lateral wall, and for traffic intersection is shot, to obtain high definition crossing image, the resolution of high definition crossing image is 1920 × 1080;
Compact Flash, it is arranged in casing, for prestoring multiple benchmark intensity of illumination crossings image, the corresponding intensity of illumination grade of each benchmark intensity of illumination crossing image, each benchmark intensity of illumination crossing image is that traffic intersection is carried out shooting the image obtained in advance by high-definition camera under without any vehicle-state under corresponding intensity of illumination grade, Compact Flash is additionally operable to prestore traffic intersection address, binary-state threshold, aspect ratio range and symmetry scope, aspect ratio range is the scope added up after multiple benchmark vehicle images carry out aspect ratio calculating, symmetry ranges for multiple benchmark vehicle images are carried out the scope of statistics after symmetry calculating,
Foreground selection equipment, it is arranged in casing, being connected respectively with intensity of illumination detector and Compact Flash, the intensity of illumination grade based on the output of current time intensity of illumination detector is found the benchmark intensity of illumination crossing image of correspondence in Compact Flash and exports as target background image;
Live image splitting equipment, it is arranged in casing, with high-definition camera, Compact Flash and Foreground selection equipment connect respectively, high definition crossing image and the high definition crossing image of current time upper one second of current time is received by high-definition camera, respectively as the first high definition crossing image and the second high definition crossing image, the gray value of each pixel of the first high definition crossing image is deducted the gray value of the pixel of correspondence position in the second high definition crossing image and takes absolute value to obtain image difference absolute value, when image difference absolute value is be more than or equal to binary-state threshold, the respective pixel of the first high definition crossing image is confirmed as active pixel, otherwise, the respective pixel of the first high definition crossing image is confirmed as static pixel, the image of all active pixel composition in first high definition crossing image is exported as live image, live image is made up of one or more zones of action,
Morphological image processes equipment, it is arranged in casing, it is connected with live image splitting equipment, for receiving live image, and each zone of action is carried out denoising to obtain denoising subimage, fill up denoising subimage interior void and connect in denoising subimage breakpoint to obtain shaping subimage, export one or more shaping subimage;
Feature extracting device, it is arranged in casing, process equipment with morphological image to be connected, extract the horizontal maximum number of pixels of each shaping subimage and longitudinal maximum number of pixels, by longitudinal direction maximum number of pixels divided by horizontal maximum number of pixels to obtain aspect ratio, and calculate the symmetry of each shaping subimage;
DSP processes chip, it is arranged in casing, it is connected respectively with feature extracting device and Compact Flash, the aspect ratio of each shaping subimage and symmetry are compared with aspect ratio range and symmetry scope respectively, when the aspect ratio of shaping subimage drops in aspect ratio range and symmetry drops on symmetry scope, corresponding shaping subimage is confirmed as vehicle subimage, calculates the number of vehicle subimage and exports as vehicle fleet size;
Distribution box communication interface, is arranged on casing lateral wall, processes chip with DSP and Compact Flash is connected respectively, receives vehicle fleet size and traffic intersection address, and is sent vehicle fleet size and traffic intersection address by wireless communication link;
Flash lamp controls equipment, it is arranged on far-end, communication interface and photoflash controller is controlled including flash lamp, flash lamp controls communication interface for being received vehicle fleet size and traffic intersection address by wireless communication link, photoflash controller controls communication interface with flash lamp and is connected, for determining the flash lamp persistent period of capture apparatus violating the regulations near traffic intersection address based on vehicle fleet size, and based on traffic intersection address, the flash lamp persistent period determined is sent to the capture apparatus violating the regulations of each near traffic intersection address by flash lamp control communication interface;
Wherein, morphological image process equipment, live image splitting equipment and feature extracting device are respectively adopted different CPLD chips and realize.
3. the flash lamp persistent period parametric controller based on distribution box as claimed in claim 2, it is characterised in that also include:
Connecting terminal block, is connected with simulation input interface and digital input interface.
4. the flash lamp persistent period parametric controller based on distribution box as claimed in claim 3, it is characterised in that:
Connecting terminal block is arranged in casing.
5. the flash lamp persistent period parametric controller based on distribution box as claimed in claim 2, it is characterised in that:
Vehicle fleet size is more many, and the flash lamp persistent period of capture apparatus violating the regulations is more short.
6. the flash lamp persistent period parametric controller based on distribution box as claimed in claim 2, it is characterised in that:
Morphological image processes equipment, live image splitting equipment and feature extracting device and is integrated on one piece of surface-mounted integrated circuit.
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Application publication date: 20160615 |