CN102708687B - Wireless inductive road vehicle flow detection device - Google Patents
Wireless inductive road vehicle flow detection device Download PDFInfo
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- CN102708687B CN102708687B CN201210178817.9A CN201210178817A CN102708687B CN 102708687 B CN102708687 B CN 102708687B CN 201210178817 A CN201210178817 A CN 201210178817A CN 102708687 B CN102708687 B CN 102708687B
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- wireless
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- vehicle flow
- receiving body
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Abstract
The application of the invention provides a wireless inductive road vehicle flow detection device. The wireless inductive road vehicle flow detection device comprises a roadside base station and a wireless induction device buried under a roadbed, wherein the wireless induction device comprises an emitter and a receiver which are buried in the horizontal space in the middle of a lane roadbed; a receiver circuit comprises a wireless receiving module, a central data processing system and a wireless transmission module emitting innumerous data information to the roadside base station; and the receiving induction sensitivity of the receiver is set below the induction critical point inducing a wireless transmitting signal of the emitter. When vehicles on the lane are running, are jammed or even completely stop, the detection device can accurately acquire the vehicle flow data and has the advantages of simple structure, high interference prevention performance and high operational reliability.
Description
Technical field
What patented claim of the present invention related to is contactless road vehicle flow electric pick-up unit.
Background technology
Road vehicle data on flows implements base values data of highway potency management.The existing device completing road traffic detection mainly contains video monitoring device and the large class of magnetic induction measurement device two, video flow monitoring mainly obtains vehicle flow data with image analytical method, its equipment forms complicated, cost and management maintenance cost all comparatively high.Magnetic induction Vehicle flow measuring device have coil form, the structure types such as magnetic-type, no matter which kind of version, it is all the detection zone forming certain coverage area on road surface centered by magnetic induction parts, this detection zone typically has a diameter from 2 meters, during vehicle passing detection district, around magnetic induction parts, magnetic field is changed, this variable quantity is converted to corresponding magnitude of voltage, obtains detecting data through amplification, disposal data analysis.The existing technical matters no matter which kind of magnetic inductive Vehicle flow measuring technology exists is: accurately, even can not cannot detect data on flows when being in static state for road vehicle or being tending towards static state, this static state appear at vehicle congestion go slowly so that stagnation of movement time, pick-up unit cannot be differentiated and follow closely and the fore-aft vehicle of row, obscure and cause flow counting inaccurate, in addition, also there is detection zone and disturbed by outer signals in existing Vehicle flow measuring device, impact detects the reality technology problem of data accuracy.
Summary of the invention
The goal of the invention of patented claim of the present invention is to provide a kind of and simplifies pick-up unit, realize wireless induction transmission, be no matter dynamic transport condition or be tending towards static and even static time, all accurately can complete the wireless induction type road vehicle flow detection device of vehicle flow Data Detection.The wireless induction type road vehicle flow detection device technical scheme that patented claim of the present invention provides, its main technical content is: a kind of wireless induction type road vehicle flow detection device, wire-less inductive devices under including roadside base station and being embedded in road foundation, wire-less inductive devices comprises emitter and receiving body, emitter and receiving body are embedded in track roadbed intermediate lateral spaced position, receiving body circuit comprises wireless receiving module, central data processing system and launch the wireless transmitter module of countless data message to roadside base station, receiving body reception induction sensitivity is set in be responded under the induction critical point of emitter wireless transmission signal.
The wireless induction type road vehicle flow detection device technical scheme that patented claim of the present invention provides, the emitter of wire-less inductive devices and receiving body is separated by a distance is embedded in the middle of track, and make signal emissive porwer and receiving intensity between the two be set under the induction critical point of reception physical efficiency reception induced emission body wireless transmission signal, preferably in the sense state that just can not receive emitter wireless transmission signal without receiving body during vehicle, no matter motor vehicles are normally span through wire-less inductive devices, still the emitter by wire-less inductive devices or receiving body is departed from, car body all constitutes the sensor conductor in radio signal propagation space between emitter and receiving body, namely by means of car body, receiving body can respond to the wireless transmission signal receiving emitter, thus complete the detection of vehicle.So on road vehicle no matter be in transport condition or be in block up and even stagnate completely static time, this pick-up unit can both accurately obtain vehicle flow data.And the technical program also has simple structure, detects technological merit accurately, particularly adopt emitter and the receiving body of coded message, improve anti-tampering performance, its functional reliability is high.
Accompanying drawing explanation
Fig. 1 is that the road of each ingredient of this device arranges a schematic diagram.
Fig. 2 is the embedding schematic diagram of roadbed of wire-less inductive devices.
Fig. 3 is the composition frame chart of roadside base station.
Fig. 4 is the composition frame chart of emitter.
Fig. 5 is the composition frame chart of receiving body.
Embodiment
As shown in Figure 1, the composition of this wireless induction type road vehicle flow detection device includes roadside base station 3 and the wire-less inductive devices under being embedded in track roadbed, wire-less inductive devices comprises the emitter 1 that produces wireless transmission signal and respond to and receive the receiving body 2 of emitter 1 wireless transmission signal, and emitter 1 and receiving body 2 are embedded at a distance of a determining deviation in the roadbed of the same horizontal position of centre, track.According to existing motor vehicle lane width standard, road driveway width criteria is commonly 3.5 meters, consider motor vehicle left and right wheels wheelspan, emitter 1 set by the present embodiment and receiving body 2 are apart from being 800mm, both are embedded in the roadbed of 50mm under road surface, and emitter 1 and receiving body 2 all adopt waterproof pressure high-strength insulating material housing.In order to avoid outer signals is to the interference of wireless induction work between emitter 1 and receiving body 2, coding circuit corresponding to address and decoding circuit is respectively equipped with in each group emitter 1 and receiving body 2, thus improve the anti-interference of Vehicle flow measuring, improve detection accuracy.The circuit composition of emitter 1 as shown in Figure 4, comprise center-control and coded system and wireless transmitter module, receiving body 2 responds to reception emitter 1 transmitting containing coded message, vehicle flow data are gathered within the time interval of setting, namely wireless data information is launched to roadside base station 3 after each timed period, these information comprise flow combined data, the circuit composition of receiving body 2 as shown in Figure 5, includes wireless receiving module, has the central data processing system of data memory and wireless transmitter module composition.As shown in Figure 3, include wireless receiving module, have the central data processing system of memory and transmitter module composition, its transmitter module can select GPRS radio communication unit to the circuit composition of roadside base station 3.
Wireless signal sensing capability size between emitter 1 and receiving body 2 is the gordian technique means that can this Vehicle flow measuring technology realize.In distance, bury condition and road underground without under car really fixed condition, emitter 1 exports wireless transmission signal intensity settings and responds in receiving body 2 under the reception critical point of this wireless transmission signal of reception, preferably in track without vehicle time, the wireless encoding signal making receiving body 2 just not receive emitter 1 to export.When track there being motor vehicle pass through, no matter vehicle is normally span through wire-less inductive devices, still the emitter 1 or receiving body 2 of crossing wire-less inductive devices is departed from, car body constitutes the sensor conductor in radio signal propagation space between emitter 1 and receiving body 2, by means of car body, receiving body 2 can be responded to the wireless encoding receiving this group emitter 1 and transmit, registration of vehicle flow information.On road, no matter vehicle is in transport condition or is in static state of blocking up, and when front and back reach 20cm apart, this pick-up unit still can both obtain vehicle data information accurately.
Claims (2)
1. a wireless induction type road vehicle flow detection device, wire-less inductive devices under including roadside base station and being embedded in road foundation, wire-less inductive devices comprises emitter (1) and receiving body (2), emitter and receiving body are embedded in track roadbed intermediate lateral spaced position, it is characterized in that receiving body circuit comprises wireless receiving module, central data processing system and launches the wireless transmitter module of countless data message to roadside base station, receiving body reception induction sensitivity is set in be responded under the induction critical point of emitter wireless transmission signal.
2. wireless induction type road vehicle flow detection device according to claim 1, is characterized in that being respectively equipped with coding circuit corresponding to address and decoding circuit in emitter (1) and receiving body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210178817.9A CN102708687B (en) | 2012-06-01 | 2012-06-01 | Wireless inductive road vehicle flow detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210178817.9A CN102708687B (en) | 2012-06-01 | 2012-06-01 | Wireless inductive road vehicle flow detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102708687A CN102708687A (en) | 2012-10-03 |
| CN102708687B true CN102708687B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210178817.9A Expired - Fee Related CN102708687B (en) | 2012-06-01 | 2012-06-01 | Wireless inductive road vehicle flow detection device |
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| Country | Link |
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| CN (1) | CN102708687B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107274678B (en) * | 2017-08-14 | 2019-05-03 | 河北工业大学 | A kind of night vehicle flowrate and model recognizing method based on Kinect |
| CZ309135B6 (en) * | 2018-05-24 | 2022-02-23 | AŽD Praha s.r.o. | Housing for electrical equipment, especially for the surface of a moving area |
| CN112887896B (en) * | 2019-11-13 | 2023-04-07 | 中移物联网有限公司 | Scenic spot traffic flow statistical method, device and server |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0199329A2 (en) * | 1985-04-19 | 1986-10-29 | Omron Tateisi Electronics Co. | Vehicle detecting system |
| US4968979A (en) * | 1985-04-19 | 1990-11-06 | Omron Tateisi Electronics Co. | Vehicle detecting system |
| WO2002050795A1 (en) * | 2000-12-20 | 2002-06-27 | James Frederick Morris | Remote vehicle detection system |
| KR20040032516A (en) * | 2002-10-10 | 2004-04-17 | 한국건설기술연구원 | Portable Automatic Vehicle Data Collection System and Technique |
| CN2809755Y (en) * | 2005-08-03 | 2006-08-23 | 牛岗 | Wireless vehicle detection sensor |
| CN201893021U (en) * | 2010-11-02 | 2011-07-06 | 北京兆维信源通讯技术有限公司 | Traffic flow wireless detection system |
| CN202632526U (en) * | 2012-06-01 | 2012-12-26 | 辽宁机电职业技术学院 | Wireless induction road vehicle flow detection device |
-
2012
- 2012-06-01 CN CN201210178817.9A patent/CN102708687B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0199329A2 (en) * | 1985-04-19 | 1986-10-29 | Omron Tateisi Electronics Co. | Vehicle detecting system |
| US4968979A (en) * | 1985-04-19 | 1990-11-06 | Omron Tateisi Electronics Co. | Vehicle detecting system |
| WO2002050795A1 (en) * | 2000-12-20 | 2002-06-27 | James Frederick Morris | Remote vehicle detection system |
| KR20040032516A (en) * | 2002-10-10 | 2004-04-17 | 한국건설기술연구원 | Portable Automatic Vehicle Data Collection System and Technique |
| CN2809755Y (en) * | 2005-08-03 | 2006-08-23 | 牛岗 | Wireless vehicle detection sensor |
| CN201893021U (en) * | 2010-11-02 | 2011-07-06 | 北京兆维信源通讯技术有限公司 | Traffic flow wireless detection system |
| CN202632526U (en) * | 2012-06-01 | 2012-12-26 | 辽宁机电职业技术学院 | Wireless induction road vehicle flow detection device |
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| CN102708687A (en) | 2012-10-03 |
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