CN103680149B - Equipment and method of work thereof is initiatively induced based on elevated ramp mouth Car license recognition peak - Google Patents
Equipment and method of work thereof is initiatively induced based on elevated ramp mouth Car license recognition peak Download PDFInfo
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- CN103680149B CN103680149B CN201310704219.5A CN201310704219A CN103680149B CN 103680149 B CN103680149 B CN 103680149B CN 201310704219 A CN201310704219 A CN 201310704219A CN 103680149 B CN103680149 B CN 103680149B
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Abstract
The present invention relates to one and initiatively induce equipment based on elevated ramp mouth Car license recognition peak, comprise CPU module, vehicle detection module, image capture module, image processing and analyzing module, photographing module, lighting module, 3G module and Back Administration Module; Described CPU module is connected with 3G module with vehicle detection module, image capture module, image processing and analyzing module, photographing module, lighting module respectively, and Back Administration Module is connected with 3G module by wireless telecommunications.The present invention controls overpass short distance vehicle fleet size by the identification of overpass each ring road mouth up-downgoing vehicle license plate during rush-hour, overpass congestion problems during the method effectively can improve peak period, greatly shorten passerby in overpass running time, improve driving efficiency.And during non-peak period, do not control overpass short distance driving quantity, in sum, not only ensure that the original ability of being open to traffic of overpass, also solve peak period overpass congestion problems, realize its true value.
Description
Technical field
The present invention relates to and initiatively induce equipment and method of work thereof based on elevated ramp mouth Car license recognition peak, belong to the technical field that road traffic congestion controls and processes.
Background technology
At present, urban traffic blocking has become the large chronic illness of one in urbanization process, and it directly has influence on the long-range economic development of the quality of life of Urban population and city.Urban traffic blocking is increasing as the impact of social concern on people.Traffic congestion not only causes temporal delay, loss economically to traveler, returns entire society and causes the waste of huge deadweight loss and resource, the pollution of environment.The reason of traffic congestion is many-sided, administers the comprehensive regulation that traffic jam issue needs society, and transport solution blocks up the long process of needs one.
The flow of urban transportation is not constant, is change over time.Generally, except weather conditions may affect except daily traffic volume, daily traffic volume is certain with the situation of change in festivals or holidays, season substantially.And with change for the cycle volume of traffic on the one, same place, different time, hourly traffic volume was different.This change has a rule roughly.Have a rush hour respectively in morning every day, afternoon, hourly traffic volume during peak often whole day traffic total amount 1/10 ~ 1/7.
Present most of big and medium-sized cities, in order to transport solution congestion problems, all have the overpass of varying number.Along with the development in city, day by day serious at peak period overpass congestion problems, the effect causing overpass to slow down traffic congestion weakens greatly.One of them main cause be exactly the vehicle of some short distance distance during peak period in order to the convenient and swift of oneself sails overpass into, make overpass Shang Qiao and lower bridge vehicle showed increased during this period of time, cause and block up.
Summary of the invention
For the deficiencies in the prior art, the invention provides one and initiatively induce equipment based on elevated ramp mouth Car license recognition peak.
The present invention also provides a kind of method of work of above-mentioned equipment.
Technical scheme of the present invention is as follows:
One initiatively induces equipment based on elevated ramp mouth Car license recognition peak, comprises CPU module, vehicle detection module, image capture module, image processing and analyzing module, photographing module, lighting module, 3G module and Back Administration Module; Described CPU module is connected with 3G module with vehicle detection module, image capture module, image processing and analyzing module, photographing module, lighting module respectively, and Back Administration Module is connected with 3G module by wireless telecommunications;
Described CPU module adopts the single-chip microcomputer of STM32;
Described vehicle detection module adopts video to detect: utilize virtual coil video trigger module CubicRing, sensor is made by video camera, in range of video, virtual coil is set, i.e. detection zone, when vehicle enters detection zone, the background gray levels of described video camera display frame changes, thus learns the existence of vehicle, and flow and the speed of vehicle is detected with this, described video camera works on power during rush-hour; Vehicle detection module of the present invention adopts video to detect, can avoid destroying road surface, need not additional external checkout equipment, do not need to correct trigger position, reduce expenses, and be more suitable for the requirement of movable type, portable use;
Described image capture module comprises AA13H chip and colour TV camera, and it adopts natural light image acquisition, and daytime utilizes available light, adopts floor light light source night, described colour TV camera collection vehicle true color image video flowing;
The vehicle true color image dynamic image distribution that image capture module collects by described photographing module is in the physical memory of CPU module;
Containing the picture of license plate number in described image processing and analyzing module intercepts vehicle true color image video flowing, and car plate is positioned, the segmentation of characters on license plate, optical character identification and output license board information; The segmentation of described characters on license plate adopts vertical projection method, has good effect to the Character segmentation in the automobile image under complex environment; Described optical character identification utilizes to realize based on template matching algorithm or based on artificial neural network algorithm; Finally form the number-plate number by above step, accurately identify and export;
Described 3G module is the built-in 3G module of M2M type, carries out the high-speed transfer of real data for wireless connections Back Administration Module; Described 3G module is built-in embedded TCP/IP stack, has the Peripheral Interface that GPIO, UART, USB, PCM, Camera, I2C etc. are abundant;
Back Administration Module is for realizing identifying license board information, judging whether vehicle occurs item, store car view data in violation of rules and regulations within rush-hour.Effective automatic comparison, inquiring technology and provide that real-time Communication for Power, network security, remote maintenance, Dynamic cata exchange, database upgrade automatically, hardware parameter setting, system fault diagnosis etc.; By above function can be to the ring road mouth quantity passed through on peak period is overhead 2 or the vehicle that is less than 2 carry out the measure such as fine of reporting to the police.
Can be provided with in the gateway of each overpass and inform board prompting driver in violation of rules and regulations condition, the ring road mouth quantity namely passed through on rush-hour is overhead be 2 or the vehicle that is less than 2 be namely considered as in violation of rules and regulations.
A method of work for equipment is initiatively induced on the above-mentioned Car license recognition peak relating to elevated ramp mouth, comprises step as follows:
(1) when vehicle enters elevated ramp mouth during rush-hour, after vehicle detection module detects vehicle, trigger image acquisition module: gather Current vehicle true color image video flowing; Lighting module utilizes available light daytime, adopts floor light light source night;
(2) photographing module gathers dynamic image distribution in the physical memory of CPU module;
(3) process containing the picture of license plate number in image processing and analyzing module intercepts vehicle true color image video flowing, and car plate is positioned, the segmentation of characters on license plate, optical character identification and output license board information; The segmentation of described characters on license plate adopts vertical projection method, has good effect to the Character segmentation in the automobile image under complex environment; The character string received passes in analytical function by described optical character identification, the character split is adopted and identifies based on template matching algorithm or based on artificial neural network algorithm, final composition license number, exports license board information by the picture compression information package identified;
(4) described license board information sends to Back Administration Module to carry out the process of data, analysis, contrast by 3G module: during rush-hour, the ring road mouth quantity of platform administration module vehicle process is less than or equal to predetermined number, described Back Administration Module automatically records corresponding information of vehicles and points out supervisor, carries out corresponding punishment by supervision department according to the information of vehicles of record to this vehicle.
Preferred according to the present invention, in described step (4), the ring road mouth quantity of platform administration module vehicle process is less than or equal to predetermined number, and the predetermined number of described ring road mouth is 2.
Please supplement advantage of the present invention:
The present invention controls overpass short distance vehicle fleet size by the identification of overpass each ring road mouth up-downgoing vehicle license plate during rush-hour, overpass congestion problems during the method effectively can improve peak period, greatly shorten passerby in overpass running time, improve driving efficiency.And during non-peak period, do not control overpass short distance driving quantity, in sum, not only ensure that the original ability of being open to traffic of overpass, also solve peak period overpass congestion problems, realize its true value.
Accompanying drawing explanation
Fig. 1 is general system set-up figure of the present invention;
Fig. 2 is that equipment method of work process flow diagram is initiatively induced on the Car license recognition peak of elevated ramp mouth of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail, but is not limited thereto.
Embodiment 1,
As shown in Figure 1.
One initiatively induces equipment based on elevated ramp mouth Car license recognition peak, comprises CPU module, vehicle detection module, image capture module, image processing and analyzing module, photographing module, lighting module, 3G module and Back Administration Module; Described CPU module is connected with 3G module with vehicle detection module, image capture module, image processing and analyzing module, photographing module, lighting module respectively, and Back Administration Module is connected with 3G module by wireless telecommunications;
Described CPU module adopts the single-chip microcomputer of STM32;
Described vehicle detection module adopts video to detect: utilize virtual coil video trigger module CubicRing, sensor is made by video camera, in range of video, virtual coil is set, i.e. detection zone, when vehicle enters detection zone, the background gray levels of described video camera display frame changes, thus learns the existence of vehicle, and flow and the speed of vehicle is detected with this, described video camera works on power during rush-hour; Vehicle detection module of the present invention adopts video to detect, can avoid destroying road surface, need not additional external checkout equipment, do not need to correct trigger position, reduce expenses, and be more suitable for the requirement of movable type, portable use;
Described image capture module comprises AA13H chip and colour TV camera, and it adopts natural light image acquisition, and daytime utilizes available light, adopts floor light light source night, described colour TV camera collection vehicle true color image video flowing;
The vehicle true color image dynamic image distribution that image capture module collects by described photographing module is in the physical memory of CPU module;
Containing the picture of license plate number in described image processing and analyzing module intercepts vehicle true color image video flowing, and car plate is positioned, the segmentation of characters on license plate, optical character identification and output license board information; The segmentation of described characters on license plate adopts vertical projection method, has good effect to the Character segmentation in the automobile image under complex environment; Described optical character identification utilizes to realize based on template matching algorithm or based on artificial neural network algorithm; Finally form the number-plate number by above step, accurately identify and export;
Described 3G module is the built-in 3G module of M2M type, carries out the high-speed transfer of real data for wireless connections Back Administration Module; Described 3G module is built-in embedded TCP/IP stack, has the Peripheral Interface that GPIO, UART, USB, PCM, Camera, I2C etc. are abundant;
Back Administration Module is for realizing identifying license board information, judging whether vehicle occurs item, store car view data in violation of rules and regulations within rush-hour.Effective automatic comparison, inquiring technology and provide that real-time Communication for Power, network security, remote maintenance, Dynamic cata exchange, database upgrade automatically, hardware parameter setting, system fault diagnosis etc.; By above function can be to the ring road mouth quantity passed through on peak period is overhead 2 or the vehicle that is less than 2 carry out the measure such as fine of reporting to the police.
Can be provided with in the gateway of each overpass and inform board prompting driver in violation of rules and regulations condition, the ring road mouth quantity namely passed through on rush-hour is overhead be 2 or the vehicle that is less than 2 be namely considered as in violation of rules and regulations.
Embodiment 2,
As shown in Figure 2.
A method of work for equipment is initiatively induced on the Car license recognition peak relating to elevated ramp mouth as described in Example 1, comprises step as follows:
(1) when vehicle enters elevated ramp mouth during rush-hour, after vehicle detection module detects vehicle, trigger image acquisition module: gather Current vehicle true color image video flowing; Lighting module utilizes available light daytime, adopts floor light light source night;
(2) photographing module gathers dynamic image distribution in the physical memory of CPU module;
(3) process containing the picture of license plate number in image processing and analyzing module intercepts vehicle true color image video flowing, and car plate is positioned, the segmentation of characters on license plate, optical character identification and output license board information; The segmentation of described characters on license plate adopts vertical projection method, has good effect to the Character segmentation in the automobile image under complex environment; The character string received passes in analytical function by described optical character identification, the character split is adopted and identifies based on template matching algorithm or based on artificial neural network algorithm, final composition license number, exports license board information by the picture compression information package identified;
(4) described license board information sends to Back Administration Module to carry out the process of data, analysis, contrast by 3G module: during rush-hour, the ring road mouth quantity of platform administration module vehicle process is less than or equal to predetermined number, described Back Administration Module automatically records corresponding information of vehicles and points out supervisor, carries out corresponding punishment by supervision department according to the information of vehicles of record to this vehicle.
In described step (4), the ring road mouth quantity of platform administration module vehicle process is less than or equal to predetermined number, and the predetermined number of described ring road mouth is 2.
Claims (2)
1. the method for work of equipment is initiatively induced on the Car license recognition peak based on elevated ramp mouth, it is characterized in that, the described Car license recognition peak based on elevated ramp mouth initiatively induces equipment to comprise CPU module, vehicle detection module, image capture module, image processing and analyzing module, photographing module, lighting module, 3G module and Back Administration Module; Described CPU module is connected with 3G module with vehicle detection module, image capture module, image processing and analyzing module, photographing module, lighting module respectively, and Back Administration Module is connected with 3G module by wireless telecommunications;
Described CPU module adopts the single-chip microcomputer of STM32;
Described vehicle detection module adopts video to detect: utilize virtual coil video trigger module CubicRing, sensor is made by video camera, in range of video, virtual coil is set, i.e. detection zone, when vehicle enters detection zone, the background gray levels of described video camera display frame changes, thus learns the existence of vehicle, and flow and the speed of vehicle is detected with this, described video camera works on power during rush-hour;
Described image capture module comprises AA13H chip and colour TV camera, and it adopts natural light image acquisition, and daytime utilizes available light, adopts floor light light source night, described colour TV camera collection vehicle true color image video flowing;
The vehicle true color image dynamic image distribution that image capture module collects by described photographing module is in the physical memory of CPU module;
Containing the picture of license plate number in described image processing and analyzing module intercepts vehicle true color image video flowing, and car plate is positioned, the segmentation of characters on license plate, optical character identification and output license board information; The segmentation of described characters on license plate adopts vertical projection method, and described optical character identification utilizes to realize based on template matching algorithm or based on artificial neural network algorithm;
Described 3G module is the built-in 3G module of M2M type, carries out the high-speed transfer of real time data for wireless connections Back Administration Module;
Back Administration Module is for realizing identifying license board information, judging whether vehicle occurs item, store car view data in violation of rules and regulations within rush-hour;
The method of work of equipment is initiatively induced on the described Car license recognition peak relating to elevated ramp mouth, comprises step as follows:
(1) when vehicle enters elevated ramp mouth during rush-hour, after vehicle detection module detects vehicle, trigger image acquisition module: gather Current vehicle true color image video flowing; Lighting module utilizes available light daytime, adopts floor light light source night;
(2) photographing module gathers dynamic image distribution in the physical memory of CPU module;
(3) process containing the picture of license plate number in image processing and analyzing module intercepts vehicle true color image video flowing, and car plate is positioned, the segmentation of characters on license plate, optical character identification and output license board information; The segmentation of described characters on license plate adopts vertical projection method, the characters on license plate string received passes in analytical function by described optical character identification, the character split is adopted and identifies based on template matching algorithm or based on artificial neural network algorithm, final composition license number, exports license board information by the picture compression information package identified;
(4) described license board information sends to Back Administration Module to carry out the process of data, analysis, contrast by 3G module: during rush-hour, Back Administration Module contrast judges that the ring road mouth quantity of vehicle process is less than or equal to predetermined number, described Back Administration Module automatically records corresponding information of vehicles and points out supervisor, carries out corresponding punishment by supervision department according to the information of vehicles of record to this vehicle.
2. method of work according to claim 1, is characterized in that, in step (4), Back Administration Module contrast judges that the ring road mouth quantity of vehicle process is less than or equal to predetermined number, and the predetermined number of described ring road mouth is 2.
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| JP2000268291A (en) * | 1999-03-18 | 2000-09-29 | Nec Corp | License plate recognition device |
| CN1725266A (en) * | 2004-07-21 | 2006-01-25 | 上海高德威智能交通系统有限公司 | Vehicle intelligent monitoring recording syste mand method based on video trigger and speed measuring |
| KR100672015B1 (en) * | 2005-05-13 | 2007-01-19 | 서만호 | Vehicle license plate recognition system with a device for measuring illumination and the method for improving the definition of vehicle license plate image thereby |
| CN201159903Y (en) * | 2008-03-14 | 2008-12-03 | 北京信路威科技发展有限公司 | License plate recognition device |
| CN101964145A (en) * | 2009-07-23 | 2011-02-02 | 北京中星微电子有限公司 | Automatic license plate recognition method and system |
| CN102509090B (en) * | 2011-11-29 | 2016-05-04 | 冷明 | A kind of vehicle feature recognition device based on public safety video image in sky net engineering |
| CN103186982B (en) * | 2011-12-28 | 2015-07-01 | 南京理工大学常熟研究院有限公司 | Intelligent access system for public security |
| US9760789B2 (en) * | 2012-04-17 | 2017-09-12 | Conduent Business Services, Llc | Robust cropping of license plate images |
| CN102902957A (en) * | 2012-09-05 | 2013-01-30 | 佳都新太科技股份有限公司 | Video-stream-based automatic license plate recognition method |
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