CN102339531B - Road traffic detection system - Google Patents
Road traffic detection system Download PDFInfo
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- CN102339531B CN102339531B CN201010228383.XA CN201010228383A CN102339531B CN 102339531 B CN102339531 B CN 102339531B CN 201010228383 A CN201010228383 A CN 201010228383A CN 102339531 B CN102339531 B CN 102339531B
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Abstract
A road traffic detection system comprises one or more of an RFID reader-writer, a photosensitive sensor, a laser detector, a camera, a weight sensor, an inductance coil, an infrared light curtain, a sound sensor and a temperature sensor. A traffic detection front system is formed by an RFID label which is named as an Eplate and is installed on a vehicle and the above element in the road traffic detection system. Compared to a traditional video analysis traffic information acquisition method, by using the system of the invention, data is accurate; information contents are large; a related information collection ability is strong and a certain intelligent processing and reaction ability is possessed.
Description
[technical field]
The present invention relates to radio sensing network field, relate in particular to a kind of road traffic detection system of multisensor.
[background technology]
Traffic information collection equipment is a kind of equipment for the vehicle of transportation network is monitored, substantially taking camera as main, by taking the situation of movement of vehicle in monitoring and controlling traffic network, send the managerial personnel of Surveillance center to, managerial personnel are by watching situation about photographing that the jam situation of urban transportation is judged and dredged.
Existing traffic information collection equipment is main mainly with camera, function ratio is more single, and there is no construction system, cannot be accurately to the transport information collection of networking, can only carry out rough analysis to urban pavement traffic video recording at present and estimate to add up the magnitude of traffic flow, highway can carry out by Fare Collection System the collection of the magnitude of traffic flow, but cannot meet the demand to other informations relevant to traffic.
[summary of the invention]
Technical matters to be solved by this invention is, a kind of sensor traffic information acquisition system is provided, RFID technology is applied in traffic information collection, and in conjunction with multiple sensors module, to reach the object of the accurate collection various information relevant with traffic, for the intelligent gather data of traffic administration, provide information.And there is Intelligent treatment reaction capacity to a certain degree.
In order to address the above problem, the invention provides a kind of road traffic detection system, it is characterized in that, comprise one or more in rfid interrogator, light sensor, laser detector, camera, weight sensor, telefault, infrared curtain, sound transducer and temperature sensor, with the RFID label of installing on vehicle, or title electronic license plate, form together traffic detection front end system.
The invention has the advantages that, analyze traffic information collecting method with traditional video recording compared with, data are accurate, contain much information, it is strong that relevant information is collected ability, and have certain Intelligent treatment reaction capacity.
[brief description of the drawings]
Accompanying drawing 1 is the structural representation of system described in the specific embodiment of the present invention.
[embodiment]
Below in conjunction with accompanying drawing, the embodiment of a kind of multi-sensor traffic information acquisition system provided by the invention is elaborated.
Shown in accompanying drawing 1, be the structural representation of system described in this embodiment, comprise RFID label, aerial array, multiple rfid interrogator, multiple sensor assemblies and main control equipment.
Continue with reference to accompanying drawing 1, RFID label is arranged on vehicle 1, can be designed to the form of electronic license plate 11 or electronic window subsides 12.Electronic license plate adopts RFID technology, former motor car license plate is replaced by the electronic license plate that contains RFID technology, and internal storage has the relevant information of these motor vehicles.Window labels the electronic tag of RFID employing RFID technology, sticks on motor vehicles front window, and internal storage has the relevant information of this vehicle.
Continue with reference to accompanying drawing 1, rfid interrogator 2 is arranged on the both sides of road network, includes aerial array.Adopt high-speed RFID read write line can read and write accurately the equipment of its internal information to multiple RFID fixing or high-speed mobile simultaneously.
Continue with reference to accompanying drawing 1, described sensor assembly comprises one or more in ground induction coil 31 (including weight sensor), infrared curtain 32, infrared ray sensor 33, Temperature Humidity Sensor 34, light sensor 35, sound transducer 36, camera 37, flashlamp and control module (being included in camera 37), radar meter 38 and laser detector.Above-mentioned multiple sensing can be used when difference.Meanwhile, above-mentioned detector is except being to hang on lamp stand or on portal frame, and also having one may be exactly on roadside, is side dress.
Main control equipment needn't be arranged on roadside, and is arranged on the position that vehicle supervision department specifies, so not shown in Fig. 1.Main control equipment includes the main control board of MCU, USB interface, RS232 serial ports, RS485 serial ports, bluetooth, 3G, the communication interfaces such as Ethernet etc.There is general Purpose IO Interface, can with other device talks, can upload and download data, can remote upgrade.There is POE, audio interface, the functions such as PSAM card reader, can connect external display device and control displaying contents.Can obtain the information in vehicle RFID label, car speed, noise level, temperature, humidity, the various information such as light intensity according to various sensor feedback.Can judge whether vehicle enters appointed area, calculating vehicle quantity, calculates the magnitude of traffic flow, judges ambient conditions, according to pre-set programs, from main control traffic lights, points out or send SMS issuing traffic situation by display screen.
Adopt the scheme described in this embodiment, the mounted RFID label of electronic license plate or window is installed on motor vehicles, in label, have the relevant information of vehicle, can be write by rfid interrogator.At the node of road with need the position of Information Monitoring that this equipment is installed.Combine by the judgement of the multiple sensors such as ground induction coil and infrared curtain and image and RFID, vehicle is surveyed, and collection vehicle relevant information, and car speed, the information such as site of road.Statistic flow information simultaneously.By temperature humidity and light intensity and sensor noise, can gather the environmental information relevant to traffic.By the collection to environmental information, corresponding corresponding weather conditions model, judges current traffic weather situation, and the situation of needs prompting is processed, by Ethernet, 3G, SMS, and display screen issue relevant information, or control and upload traffic information data to database
Specifically, the RFID label of installing on vehicle when mounted, carries out RFID sensitivity test in the time that RFID label fills onboard by standard reading device, and vehicle detection sensor detects vehicle commander as telefault, and deposits test structure in electronic tag.
The RFID label of installing on vehicle also deposits vehicle producer, model and year built information in.
This roadside detection system identifies and pass in and out the time judgement of read-write scope by the RFID label on vehicle and vehicle tag sensitivity information and the vehicle information reading from label judges that thereby the movable length of label within the scope of read-write calculates the speed of vehicle.
Because being subject to environment and tag feature, the communication of rfid interrogator and RFID label affects, its read-write range size is different, thereby may cause sequencing with actual inconsistent, therefore, this detection system coordinates other sensors detections can judge the sequencing that label enters by tag sensitivity is calculated.
The camera of detection system carries out vehicle identification computing to the vehicle passing through, and matches by the order of queue up corresponding mode and rfid interrogator identification, to detect the vehicle position without RFID label.
The telefault of detection system or infrared curtain sensor are by the detection that has or not to through vehicle, detection vehicle is overlaid on coil or blocks infrared curtain and set the existence of vehicle, order by queue up corresponding mode and rfid interrogator identification is matched, to detect the position without the vehicle place of RFID label.
The camera of detection system carries out the identification of vehicle frontier probe or vehicle special sign to the vehicle passing through, described characteristic mark comprises car plate, vehicle window or the artificial special reflecting mark that is printed on some position of vehicle of specifying, by to the variation of these characteristic tag distance in multiple image and the time of each frame, vehicle is carried out to speed calculating, and compare by this speed and the speed calculating by RFID tag recognition entrained with it or that adjacent vehicle is entrained, if two speed obviously differ larger, key diagram is wrong as vehicle identification, in the time vehicle being carried out to order identification detection, to carry out Self-regulation track or by manually correcting to system.
The telefault of detection system or infrared curtain are surveyed the vehicle passing through; cover and block the time and vehicle commander calculates car speed by calculating vehicle; vehicle information or telefault by reading tag are surveyed vehicle commander; and compare by this speed and the speed calculating by RFID tag recognition entrained with it or that adjacent vehicle is entrained; if two speed differ larger; illustrate that coil or infrared curtain detection are wrong; in the time vehicle being carried out to order identification and survey, will carry out Self-regulation track or by manually correcting to system.
This detection system calculates flow by the vehicle passing through being carried out to vehicle count within the unit interval.
This detection system is by carry out the identification of RFID recognition image by vehicle, and ground induction coil is surveyed and speed calculating is carried out in infrared curtain detection, thereby draws average velocity.
This detection system is used RFID identification, by confirming to coordinate image processing or ground induction coil and infrared curtain to confirm vehicle location and speed to tag readable degree sensitivity identification location and speed, surveys solid line and rides line in violation of rules and regulations and overspeed violation.
This detection system is used RFID identification to draw its vehicle and limit for tonnage amount information, by corresponding weight sensor and/or by camera, vehicle is carried out to volume calculating, judges whether it overloads.
This detection system is used RFID identification, confirms to coordinate image processing or ground induction coil and infrared curtain to determine that to vehicle location and speed in detection red light situation, running red light for vehicle is also taken pictures and stayed evidence by tag readable degree sensitivity being identified to location and speed.Evidence photograph can show photo opporunity, place and coordinate and directional information.
This detection system situation that the detection of noise is judged to vehicle acceleration and deceleration.
This detection system draws the speed of a motor vehicle, the wagon flow of sensing point by multifactor detection analysis, by parameters such as vehicle acceleration and deceleration situation and vehicle densities, and be kept in this detection system or on pass central server back.
This traffic detection system is with central server to being connected, and central server is uploaded after can searching for traffic parameter that detection system is deposited also can be by all data upload.
This traffic detection system also arranges automatically by central server or by central server, the parameter of detection is not sent to relevant or contiguous detector, or reception traffic detection parameter that be correlated with and that contiguous detector sends, thereby calculate the parameters such as the average discharge, speed, traffic density in section or path, and be recorded in this detector or return to central server.
This traffic detection system has the function of controlling traffic lights, by local transit parameter and the section parameter calculating steering logic and the algorithm of carrying out appointment, traffic lights is controlled, or is directly accepted the instruction control traffic lights of central server.
This traffic detection system has the function of electronic display board of control, by the local transit parameter and the section parameter that calculate and carry out steering logic and the algorithm of specifying electronic display board demonstration information is informed to regulate the speed of a motor vehicle and dredged wagon flow.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (21)
1. a road traffic detection system, it is characterized in that, comprise rfid interrogator, light sensor, laser detector, camera, weight sensor, telefault, infrared curtain, one or more in sound transducer and temperature sensor, with the RFID label of installing on vehicle, or title electronic license plate, form together traffic detection front end system, the RFID label of installing on vehicle when mounted, in the time that filling onboard, RFID label carries out RFID sensitivity test by standard reading device, vehicle detection sensor detects vehicle commander, and deposit test result in electronic tag, wherein, rfid interrogator is arranged on the both sides of road network, includes aerial array.
2. system according to claim 1, is characterized in that, described vehicle detection sensor is telefault.
3. system according to claim 1, is characterized in that, the RFID label of installing on vehicle also deposits vehicle producer, model and year built information in.
4. system according to claim 1, it is characterized in that, thereby this roadside detection system identifies and pass in and out the time judgement of read-write scope by the RFID label on vehicle and vehicle tag sensitivity information and the vehicle information reading from label judges that the movable length of label within the scope of read-write calculates the speed of vehicle.
5. system according to claim 1, it is characterized in that, because being subject to environment and tag feature, the communication of rfid interrogator and RFID label affects, its read-write range size is different, thereby cause sequencing with actual inconsistent, therefore, this detection system coordinates sensor detection can judge the sequencing that label enters by tag sensitivity is calculated.
6. system according to claim 1, it is characterized in that, the camera of detection system carries out vehicle identification computing to the vehicle passing through, and matches by the order of queue up corresponding mode and rfid interrogator identification, to detect the vehicle position without RFID label.
7. system according to claim 1, it is characterized in that, the telefault of detection system or infrared curtain sensor are by the wrong detection to through vehicle, detection vehicle is overlaid on coil or blocks infrared curtain and identify the existence of vehicle, order by queue up corresponding mode and rfid interrogator identification is matched, to detect the position without the vehicle place of RFID label.
8. system according to claim 1, it is characterized in that, the camera of detection system carries out the identification of vehicle frontier probe or vehicle special sign to the vehicle passing through, described special sign comprises car plate, vehicle window or the artificial special reflecting mark that is printed on some position of vehicle of specifying, by to the variation of these characteristic tag distance in multiple image and the time of each frame, vehicle is carried out to speed calculating, and compare by this speed and the speed calculating by RFID tag recognition entrained with it or that adjacent vehicle is entrained, if two speed obviously differ larger, key diagram is wrong as vehicle identification, in the time vehicle being carried out to order identification detection, to carry out Self-regulation track or by manually correcting to system.
9. system according to claim 1, it is characterized in that, the telefault of detection system or infrared curtain are surveyed the vehicle passing through, cover and block the time and vehicle commander calculates car speed by calculating vehicle, vehicle information or telefault by reading tag are surveyed vehicle commander, and compare by this speed and the speed calculating by RFID tag recognition entrained with it or that adjacent vehicle is entrained, if two speed differ larger, illustrate that coil or infrared curtain detection are wrong, in the time vehicle being carried out to order identification detection, to carry out Self-regulation track or by manually correcting to system.
10. system according to claim 1, is characterized in that, this detection system calculates flow by the vehicle passing through being carried out to vehicle count within the unit interval.
11. systems according to claim 1, is characterized in that, this detection system is by carry out the identification of RFID recognition image by vehicle, and ground induction coil is surveyed and speed calculating is carried out in infrared curtain detection, thereby draws average velocity.
12. systems according to claim 1, it is characterized in that, this detection system is used RFID identification, by confirming to coordinate image processing or ground induction coil and infrared curtain to confirm vehicle location and speed to tag readable degree sensitivity identification location and speed, survey solid line and ride line in violation of rules and regulations and overspeed violation.
13. systems according to claim 1, is characterized in that, this detection system is used RFID identification to draw its vehicle and limit for tonnage amount information, by corresponding weight sensor and/or by camera, vehicle is carried out to volume calculating, judges whether it overloads.
14. systems according to claim 1, it is characterized in that, this detection system is used RFID identification, confirm to coordinate image processing or ground induction coil and infrared curtain to determine that to vehicle location and speed in detection red light situation, running red light for vehicle is also taken pictures and stayed evidence by tag readable degree sensitivity being identified to location and speed.
15. systems according to claim 14, is characterized in that, evidence photograph can show photo opporunity, place and coordinate and directional information.
16. systems according to claim 1, is characterized in that, this detection system situation that the detection of noise is judged to vehicle acceleration and deceleration.
17. systems according to claim 1, it is characterized in that, this detection system draws the speed of a motor vehicle, the wagon flow of sensing point by multifactor detection analysis, by vehicle acceleration and deceleration situation and vehicle density parameter, and be kept in this detection system or on pass central server back.
18. systems according to claim 1, is characterized in that, this traffic detection system is with central server to being connected, and central server is uploaded after can searching for traffic parameter that detection system is deposited also can be by all data upload.
19. systems according to claim 1, it is characterized in that, this traffic detection system also arranges automatically by central server or by central server, the parameter of detection is not sent to relevant detector, or receive the traffic detection parameter that relevant detector sends, thereby calculate the parameters such as the average discharge, speed, traffic density in section or path, and be recorded in this detector or return to central server.
20. systems according to claim 1, it is characterized in that, this traffic detection system has the function of controlling traffic lights, by local transit parameter and the section parameter calculating steering logic and the algorithm of carrying out appointment, traffic lights are controlled, or directly accepted the instruction control traffic lights of central server.
21. systems according to claim 1, it is characterized in that, this traffic detection system has the function of electronic display board of control, by the local transit parameter and the section parameter that calculate and carry out steering logic and the algorithm of specifying electronic display board demonstration information is informed to regulate the speed of a motor vehicle and dredged wagon flow.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010228383.XA CN102339531B (en) | 2010-07-14 | 2010-07-14 | Road traffic detection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010228383.XA CN102339531B (en) | 2010-07-14 | 2010-07-14 | Road traffic detection system |
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| CN102339531A CN102339531A (en) | 2012-02-01 |
| CN102339531B true CN102339531B (en) | 2014-11-05 |
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| CN201010228383.XA Expired - Fee Related CN102339531B (en) | 2010-07-14 | 2010-07-14 | Road traffic detection system |
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| DE102012018212A1 (en) * | 2012-09-14 | 2014-03-20 | Audi Ag | Recording traffic and accident data at traffic junctions |
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| CN110796863A (en) * | 2019-11-05 | 2020-02-14 | 韶关学院 | Intelligent transportation device and management system based on Internet of things |
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