CN2809755Y - Wireless vehicle detection sensor - Google Patents
Wireless vehicle detection sensor Download PDFInfo
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- CN2809755Y CN2809755Y CN 200520024600 CN200520024600U CN2809755Y CN 2809755 Y CN2809755 Y CN 2809755Y CN 200520024600 CN200520024600 CN 200520024600 CN 200520024600 U CN200520024600 U CN 200520024600U CN 2809755 Y CN2809755 Y CN 2809755Y
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Abstract
The utility model discloses a wireless vehicle detection sensor, which belongs to the motor vehicle detection sensor devices in the field of intelligent traffic detection and electronic police systems. The utility model is composed of a vehicle sensor, an operational amplifier, a microprocessor, a wireless data receiver/transmitter integrated block, a battery, a power consumption control switch integrated block, etc. In the utility model, the magnetic induction type vehicle sensor is adopted to convert the variation of a physical field (a magnetic field, an electric field, etc.) caused by the pass of vehicles into electric signals; after the electric signals is processed by data of the microprocessor, the data of detection result is sent to a receiver on a roadside in a wireless transmission mode and the purpose of detecting the vehicles is attained. The utility model also has the advantages that the installation and use are convenient, the degree of integration is high, the performances are stable and reliable, the wireless vehicle detection sensor is free from the limitation of the road surfaces and installation site, the purposes are wide, etc. The utility model is particularly suitable to be used as a sensor device for traffic flow detection in an intelligent traffic system and traffic illegal vehicle detection in the electronic police system.
Description
Technical field
The utility model relates to a kind of wireless type vehicle detecting sensor in intelligent transportation detection and the electronic police system field, be specially adapted to do the magnitude of traffic flow in the intelligent transportation system detects and electronic police system in the sensor device of traffic offence vehicle detection.
Background technology
At present, using more vehicle detecting sensor is the inductive coil detecting sensor.In this technology, a square coil is embedded in track central authorities, when vehicle passed through on inductive coil, the inductance value of coil can change, and can reflect the existence of tested vehicle by the variation of measuring winding inductance quantity.
The inductive coil detecting sensor need be cut the road surface in use in detecting the track, so that fluting is buried inductive coil underground.Simultaneously, also will bury long feeder line underground links to each other inductive coil with the detecting sensor circuit in roadside, when multilane detects, need on every track, bury inductive coil underground, when judging the travel direction of tested vehicle, needs also need to bury former and later two inductive coils underground in same track, the damage of road pavement is bigger, is difficult for construction.Owing to will roll by vehicular traffic, the inductive coil that is embedded in the track be fragile.Simultaneously, inductive coil is embedded in track central authorities (for example long 2 meters * wide 1 meter rectangle) with rectangular shape, and surveyed area is bigger, can not accurately detect vehicle on a point or a line, and use is restricted.
Summary of the invention
The purpose of this utility model be to avoid the weak point in the above-mentioned background technology and provide a kind of and adopt integrated magnetic inductive physical field sensor, need not bury inductive coil underground, wireless type vehicle detecting sensor easy to install.The magnitude of traffic flow that the utility model not only can be done in the intelligent transportation system detects, can also do the detection of multiple traffic offence behaviors such as vehicle in the electronic police system makes a dash across the red light, line ball, reverse driving, velocity survey, and also has the restriction that is not subjected to pavement conditions and infield, integrated degree height, stable performance, the reliability height, characteristics such as of many uses.
The purpose of this utility model is achieved in that it is made up of vehicle sensors 1, operational amplifier 2, microprocessor 3, wireless data reception/transmitter integrated package 4, battery 5, power consumption control switch integrated package 6.Wherein vehicle sensors 1 signal go out that end 1 pin and operational amplifier 2 signals go into that end 1 pin is connected, power supply control into end 2 pin and power consumption control switch integrated package 6+the V Control of Voltage goes out to hold 2 pin to be connected; Operational amplifier 2 signals go out end 3 pin and the A/D of microprocessor 3 sample into end 1 pin be connected, power supply control into end 2 pin and power consumption control switch integrated package 6+the V Control of Voltage goes out to hold 2 pin and connects; Microprocessor 3 data come in and go out end 3 pin and wireless data receptions/transmitter integrated package 4 data come in and go out end 1 pin is connected, controls out end 4 pin and power consumption control switch integrated package 6 control go into to hold that 3 pin are connected, power supply goes into to hold 2 pin and battery 5+the V voltage source goes out to hold 1 pin to be connected; Power consumption control switch 6 power supplys go into end 1 pin, wireless data receptions/transmitter integrated package 4 power supplys go into end 2 pin respectively with battery 5+the V voltage source goes out to hold 1 pin and connects.
The utility model vehicle sensors 1, operational amplifier 2, microprocessor 3, wireless data reception/transmitter integrated package 4, battery 5,6 each the circuit block sealing of power consumption control switch integrated package are assemblied in the cylindrical structural housing.
The utility model is compared background technology and is had following advantage:
1, the utility model is easy to install.The utility model vehicle detecting sensor only needs to bore cylindrical hole on the road surface of detecting the track in use, puts into the cylindrical structural sensor, and sealing and fixing gets final product work, need not debugging, and construction is simple.
2, the integrated degree height of the utility model, stable performance, reliability height.It comes the vehicle sensors 1 with the integrated form physical field, and the variation of physical field (electric field, magnetic field etc.) is converted to electric signal, reaches the vehicle detection purpose.It is high to compare the inductive coil stability that the coil detecting sensor is embedded in the road, and therefore, the influence that it is changed by environmental factor such as temperature is little.Simultaneously, the utility model only bores very little hole in track central authorities, be not subjected to the restriction of pavement conditions and infield, can not roll detecting sensor during normal vehicle operation, be different from the coil detecting sensor need vehicle from the coil by after just can detect vehicle, so the utility model is difficult for impaired, but long-term work.
3, the utility model is of many uses, except that have with coil detecting sensor identical functions, also have the function that the coil detecting sensor does not possess, only can judge the travel direction of vehicle, and can on a point, detect vehicle with the single unit vehicle detecting sensor; When a plurality of detecting sensors being installed in when using on the line, can constitute the line detection zone.Therefore, in electronic police system, can be used for the detection of multiple traffic offence behaviors such as vehicle makes a dash across the red light, line ball, reverse driving, velocity survey.
Description of drawings
Fig. 1 is the electrical schematic diagram of the utility model embodiment.
Embodiment
With reference to Fig. 1, the utility model is made up of vehicle sensors 1, operational amplifier 2, microprocessor 3, wireless data reception/transmitter integrated package 4, battery 5, power consumption control switch integrated package 6, Fig. 1 is an electrical schematic diagram of the present utility model, and embodiment presses Fig. 1 connection line.Vehicle sensors 1 effect is that the variation of physical field (electric field, magnetic field etc.) is converted to electric signal, and 2 pairs of signals of this electric signal input operational amplifier amplify.Embodiment vehicle sensors 1 adopts commercially available HMC1052 type magnetoresistive transducer to make, and also can adopt contactless physical field sensor production.Operational amplifier 2 effect amplifying signals adopt commercially available LM358 amplifier integrated package to make.The principle of work of magnetoresistive transducer is: it is the magnetic induction sensor of integrated encapsulation, the magnetic field of the earth in very large range is constant, when ferromagnetic objects such as vehicle exist, the magnetic field that can cause vehicle periphery changes, magnetoresistive transducer can detect the variation in this magnetic field, and this changes of magnetic field converted to electric signal, and be input to operational amplifier 2 and amplify, reach the existence that detects vehicle and the purpose of variation.
The new novel detection signal that amplifies through operational amplifier 2 of this practicality, sample into end 1 pin by its A/D that goes out end 3 pin input microprocessors 3, the effect of microprocessor 3 becomes digital signal to the analog signal conversion of sampling, to object informations such as the travel direction that can obtain tested vehicle after the sampled signal data processing, speed, vehicle length, this detection signal goes into to hold 1 pin by its end 3 pin input wireless data receptions/transmitter integrated package 4 data of coming in and going out simultaneously.Wireless data reception/transmitter integrated package 4 has the carrier wave measuring ability, before the emission data, work in accepting state earlier, only detect and just change into emission state transmission data after the electromagnetic signal that does not have same frequency exists, interference when avoiding a plurality of vehicle sensors 1 to work simultaneously, make stable performance, reliable operation, and data are sent to the wireless data receiver in roadside by the wireless transmission mode.Embodiment microprocessor 3 adopts the microprocessor of commercially available MSP430F1121 type super low-power consumption to make, and wireless data reception/transmitter integrated package 4 adopts the integrated receiver/transmitter module making of commercially available nRF905.
The utility model microprocessor 3 is controlled out end 4 pin output control signal and is inputed to 6 controls of power consumption control switch integrated package and go into end 3 pin, controlling it goes out to hold 2 pin output+V voltage sources to be switched on or switched off, 6 effects of power consumption control switch integrated package are directly to control vehicle sensors 1 and operational amplifier 2 power supply switchings, make it be operated in the pulse condition that intermittently powers up, it is short to power up the working time, and power-off time is long, reduces electrical source consumption thereby reduce the working time.Battery 5 effects provide each parts operating voltage.In order to reduce power consumption, microprocessor 3 only moves when vehicle sensors 1 and operational amplifier 2 power up work, stop the eye state and when outage, be in, 4 of wireless data reception/transmitter integrated packages power up work when the emission data, just often be in the off-mode of little power consumption, total electrical source consumption is reduced greatly, and embodiment battery 5 adopts lithium battery to make, and its output+V voltage is+3.6V.Power consumption control switch integrated package 6 adopts commercially available IRF7317 type electronic switch integrated package to make.
The utility model vehicle sensors 1, operational amplifier 2, microprocessor 3, wireless data reception/transmitter integrated package 4, battery 5,6 each the circuit block sealing of power consumption control switch integrated package are assemblied in the cylindrical structural housing, embodiment adopts nylon material to be pressed into the circular cylindrical shell body structure, above circuit block is assemblied in the printed board of a block length bar shaped, then printed board is installed in and is of a size of 50 millimeters of diameters, highly be that sealing is assembled in 120 millimeters cylindrical housings.
The concise and to the point principle of work process of the utility model is as follows: vehicle sensors 1 and operational amplifier 2 power supplys are logical, it is disconnected that it powers up the working time by 6 controls of power consumption control switch integrated package, when vehicle sensors 1 work, microprocessor 3 is pressed some cycles and is set a timer, switch on power loss gauge tap integrated package 6 then, make vehicle sensors 1 and operational amplifier 2 power up work, 3 pairs of operational amplifier 2 output signals of microprocessor are sampled, convert digital signal to, finish once sampling, preserve and detect data, microprocessor 3 turn-offs power consumption control switch integrated package 6 then, and is in it except that other program of timer work power down mode out of service.After the timing of microprocessor 3 settings arrives, timer produces and interrupts making microprocessor 3 withdraw from power down mode, rerun routine, switch on power loss gauge tap integrated package 6 once more, make vehicle sensors 1 and operational amplifier 2 work, after sampling, obtain one group of new magnetic field data, these data and last data compare, if data are identical, then the background magnetic field data of these data as check point, when new detection data and background magnetic field data not simultaneously, the size and the trend that change by comparing data, thus judge the existence and the travel direction of vehicle, finish once sampling, repeat last process after the data processing once more, circulation is carried out according to this.
Detecting automobile storage when also needing to send the detection data, microprocessor 3 can suspend data sampling, opens wireless data reception/transmitter integrated package 4 and works in accepting state, detects the carrier signal that whether has same frequency, if have, then wait for and continue and detect with carrier signal existence frequently; When not having the same frequency carrier signal, microprocessor 3 control wireless data receptions/transmitter integrated package 4 sends the testing result data, receives testing result by other roadside receiver, reenters then during sense cycle circulates.
During use, detecting track central authorities brill cylindrical hole, put into the vehicle detecting sensor device, sealing and fixing gets final product work, need not debugging, receives by wireless mode and detects data, reaches the purpose of vehicle detection.
Claims (2)
1, a kind of wireless type vehicle detecting sensor of forming by operational amplifier (2), battery (5), it is characterized in that: also have vehicle sensors (1), microprocessor (3), wireless data receptions/transmitter integrated package (4), power consumption control switch integrated package (6) to form, wherein vehicle sensors (1) signal goes out end 1 pin and goes into to hold that 1 pin is connected, power supply is controlled into end 2 pin and power consumption control switch integrated package (6)+V Control of Voltage and gone out to hold 2 pin to be connected with operational amplifier (2) signal; Operational amplifier (2) signal go out end 3 pin and microprocessor (3) A/D sample into end 1 pin be connected, power supply controls into end 2 pin and power consumption control switch integrated package (6)+V Control of Voltage to go out to hold 2 pin and connect; Microprocessor (3) data end 3 pin and wireless data receptions/transmitter integrated package (4) data end 1 pin of coming in and going out of coming in and going out is connected, controls out end 4 pin and power consumption control switch integrated package (6) and controls and go into to hold that 3 pin are connected, power supply goes into to hold 2 pin and battery (5)+V voltage source goes out to hold 1 pin to be connected; Power consumption control switch (6) power supply is gone into end 1 pin, wireless data receptions/transmitter integrated package (4) power supply and is gone into end 2 pin and go out to hold 1 pin with battery (5)+V voltage source respectively and connect.
2, wireless type vehicle detecting sensor according to claim 1 is characterized in that: vehicle sensors (1), operational amplifier (2), microprocessor (3), wireless data reception/transmitter integrated package (4), battery (5), each circuit block sealing of power consumption control switch integrated package (6) are assemblied in the cylindrical structural housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520024600 CN2809755Y (en) | 2005-08-03 | 2005-08-03 | Wireless vehicle detection sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520024600 CN2809755Y (en) | 2005-08-03 | 2005-08-03 | Wireless vehicle detection sensor |
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| Publication Number | Publication Date |
|---|---|
| CN2809755Y true CN2809755Y (en) | 2006-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200520024600 Expired - Fee Related CN2809755Y (en) | 2005-08-03 | 2005-08-03 | Wireless vehicle detection sensor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100476900C (en) * | 2007-04-17 | 2009-04-08 | 中国科学院计算技术研究所 | Detecting method and device for communication flow |
| CN101344987B (en) * | 2007-07-13 | 2010-06-02 | 同济大学 | Vehicle detection apparatus and detection method |
| CN102708687A (en) * | 2012-06-01 | 2012-10-03 | 辽宁机电职业技术学院 | Wireless inductive road vehicle flow detection device |
| CN103914987A (en) * | 2012-12-31 | 2014-07-09 | 中国移动通信集团公司 | Embedded road sensor system |
| CN104112360A (en) * | 2013-04-22 | 2014-10-22 | 徐州工程学院 | Capturing device for lane solid line pressing by vehicles based on bias magnetic field and working method |
| CN104700628A (en) * | 2013-12-10 | 2015-06-10 | 感知技术无锡有限公司 | Vehicle detection method, device and system |
| CN112840389A (en) * | 2018-10-26 | 2021-05-25 | 京瓷株式会社 | Electronic device, control method for electronic device, and control program for electronic device |
-
2005
- 2005-08-03 CN CN 200520024600 patent/CN2809755Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100476900C (en) * | 2007-04-17 | 2009-04-08 | 中国科学院计算技术研究所 | Detecting method and device for communication flow |
| CN101344987B (en) * | 2007-07-13 | 2010-06-02 | 同济大学 | Vehicle detection apparatus and detection method |
| CN102708687A (en) * | 2012-06-01 | 2012-10-03 | 辽宁机电职业技术学院 | Wireless inductive road vehicle flow detection device |
| CN102708687B (en) * | 2012-06-01 | 2015-04-01 | 辽宁机电职业技术学院 | Wireless inductive road vehicle flow detection device |
| CN103914987A (en) * | 2012-12-31 | 2014-07-09 | 中国移动通信集团公司 | Embedded road sensor system |
| CN104112360A (en) * | 2013-04-22 | 2014-10-22 | 徐州工程学院 | Capturing device for lane solid line pressing by vehicles based on bias magnetic field and working method |
| CN106097723A (en) * | 2013-04-22 | 2016-11-09 | 徐州工程学院 | Vehicle based on bias magnetic field is delayed unloading the method for work of reality line detector |
| CN106097723B (en) * | 2013-04-22 | 2018-07-10 | 徐州工程学院 | Vehicle based on bias magnetic field is delayed unloading the method for work of solid line detection device |
| CN104700628A (en) * | 2013-12-10 | 2015-06-10 | 感知技术无锡有限公司 | Vehicle detection method, device and system |
| CN104700628B (en) * | 2013-12-10 | 2019-08-02 | 感知技术无锡有限公司 | Vehicle checking method, apparatus and system |
| CN112840389A (en) * | 2018-10-26 | 2021-05-25 | 京瓷株式会社 | Electronic device, control method for electronic device, and control program for electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060823 Termination date: 20140803 |
|
| EXPY | Termination of patent right or utility model |