CN201584057U - Vehicle detector - Google Patents
Vehicle detector Download PDFInfo
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- CN201584057U CN201584057U CN2009200550307U CN200920055030U CN201584057U CN 201584057 U CN201584057 U CN 201584057U CN 2009200550307 U CN2009200550307 U CN 2009200550307U CN 200920055030 U CN200920055030 U CN 200920055030U CN 201584057 U CN201584057 U CN 201584057U
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Abstract
The utility model relates to a vehicle detector comprising a power panel, a communication panel, a plurality of detection panels and an induction coil, wherein the power panel supplies power to the communication panel and the detection panels, the detection panels mainly comprise detection modules, and the detection modules mainly comprise oscillators and frequency selection switches thereof; the communication panel mainly comprises a data processing module, a serial port communication processing module, an Ethernet communication processing module and a CDMA communication processing module, and the data processing module mainly comprises a central processor and a storage unit; and the input ends of the detection modules are connected with the induction coil, and the output ends are connected with the central processor of the communication panel. The utility model is stable and reliable and has higher cost-performance ratio; and the utility model can adopt the universal communication modes of Ethernet, CDMA and RS485/RS232 according to the requirement, is especially suitable for an integrated system and is simple and convenient to install. This series of products adopt an anti-interference design, can enable the system to run normally under an environment with strong interference and ensure the detection accuracy.
Description
Technical field
The utility model relates to the technology of instrument and meter field, particularly a kind of wagon detector.
Background technology
In traffic system, wagon detector can be traffic monitoring and control system provides vehicle actuated signal, and the information and the data of relevant transport environmental condition are provided.In recent years, wagon detector more and more receives insider's concern as the important fore-end of traffic information collection.In view of the development need of highway communication modern management and urban transportation modern management, for the dynamic detection technology of driving vehicle---the development of wagon detector has all caused bigger attention at home and abroad.Wagon detector is to detect target with motor vehicles, and passing through or having situation, its effect of detection vehicle is to provide enough information so that carry out optimum control for intelligent traffic control system.
The kind of existing wagon detector is a lot, and detection mode also has nothing in common with each other.The main at present wagon detector that uses has magnetic vehicle detector, geomagnetic type vehicle detecting device, ultrasonic type wagon detector, toroid winding (active and passive two kinds) wagon detector etc.The groundwork principle of these detecting devices has nothing in common with each other, but they all be based on vehicle by or exist, energy in the detecting device changed and produce vehicle actuated signal and complex structure.
At present China be actually used in highway and urban road wagon detector almost all from external import, the domestically-made vehicle detecting device exists problems, as the false drop rate height, sensitivity is low, poor stability etc. works long hours.
The utility model content
The purpose of this utility model is to overcome the shortcoming of prior art with not enough, and a kind of simple in structure, accuracy of detection is higher, job stability is higher wagon detector is provided.
The purpose of this utility model realizes by following proposal: a kind of wagon detector, comprise power panel, communication board, some check-out consoles and inductive coil, power panel is given communication board and some check-out console power supplies, it is characterized in that: described check-out console mainly is made of detection module, and wherein detection module mainly is made up of oscillator and frequency selective switch thereof; Described communication board mainly is made of data processing module, serial communication processing module, ethernet communication processing module and cdma communication processing module, and wherein data processing module mainly is made of center processor, memory cell; The input end of detection module is connected with inductive coil, and output terminal is connected with the center processor of communication board.
Described center processor is embedded 16 bit CPUs.
Also be provided with the pilot lamp that is used to indicate the lane detection state on the described detection module panel.
Described inductive coil is the non-contact inductive coil, and with the input end wireless connections of detection module.
Described detection module also comprises and is arranged on sensitivity switch on the detection module panel, that be used to be provided with lane detection sensitivity and vehicle life period.
Described check-out console has the 2-5 piece.
The utility model has following advantage and effect with respect to prior art:
(1) is applicable to highway, highway, urban road dedicated test, and can controls the function such as information demonstration, system's detection, scheduling of variable information board in the supervisory system by detection signal to the travel speed of passing motor vehicles, vehicle flowrate, roadway occupancy.
(2) system has adopted advanced embedded 16 bit CPUs and large scale integrated circuit, stable and reliable product quality, and have high cost performance; Be specially adapted to integrated system, simple installation.Data-carrier store on the communication board reaches 4M, in one hour cycle, can store 80 days traffic data.
(3) native system adopts the comparatively general compatible communication protocol in market, and is compatible good, is convenient to upgrading or integrated with existing equipment.The user can select general Ethernet, CDMA1x, RS485/RS232, GPRS communication pattern as required for use, is specially adapted to integrated system, simple installation.
(4) adopt Anti-interference Design, can make system under strong interference environment, can normally move, guaranteed accuracy of detection.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment
The structure of present embodiment mainly comprises three kinds of integrated circuit boards as shown in Figure 1: a block power supply plate, a communication board and some check-out consoles.Power module mainly is set on the power panel; Data processing module, serial communication processing module, ethernet communication processing module and cdma communication processing module mainly are set on the communication board; Detection module mainly is set on the check-out console.
The function of power panel is to be voltage that the alternating current of 220V is converted into the direct supply that voltage is 12V, by motherboard to communication board and check-out console power supply.
Check-out console (being the LT-DM card) mainly is made of detection module and two sensitivity switches, pilot lamp being arranged on the detection module panel, and its major function is to be responsible for detecting the vehicle pass-through and the existence in corresponding track.Each piece check-out console (being each piece LT-DM card) can detect the vehicle condition in two tracks, so the number of track-lines according to highway comes check-out console is configured in the practical application, as the highway in two-way 8 tracks, needs 4 check-out consoles of configuration; The utility model detecting device can be applicable on the highway in the two-way 4-10 of being respectively equipped with track, that is to say, the quantity of check-out console is the 2-5 piece.Wherein, detection module mainly is made up of oscillator and frequency selective switch thereof; The sensitivity switch is eight a sensitivity switch, is respectively applied for detection sensitivity and vehicle life period that four tracks are set; Set pilot lamp has eight on the every detection module panel, is respectively applied for the detected state in four tracks of indication, denotable state comprise coil whether connection, have or not situations such as vehicle passes through.
The LT-DM card that present embodiment adopted is a four-way Europe superscript cassette vehicle detection module, and the input end inductive coil beneath with being embedded in the road surface is connected; Wherein inductive coil is selected contactless toroidal inductor in the present embodiment for use.The ultimate principle of LT-DM card is to utilize electromagnetic induction to detect to be embedded in the variation of the magnetic flux of the beneath inductive coil in road surface, thereby judges the current of vehicle and have situation.
Be arranged on four check-out consoles in four tracks on the same direction of highway, the oscillator of adjacent two check-out consoles should be operated in different frequencies, otherwise can produce interference.In the present embodiment, the oscillator nominal operation frequency range of detection module has 4 optional frequency of operation between 25-115KHz: high, middle height, in low and low.By frequency selective switch, can select the frequency of operation of oscillator.
Set frequency selective switch in the detection module is arranged on except making that four check-out consoles in four tracks are operated in respectively the different frequency range on the same direction of highway, also makes the utility model can adapt to the inductive coil that inductance value has relative broad range.When check-out console is applied on the different highways, just can be according to the inductive coil that is embedded under the road surface with different induction amount, oscillator is selected different oscillation frequency, make oscillator be operated in different oscillation frequency, thereby more help improving the detection sensitivity of detecting device, also can avoid simultaneously the signal phase mutual interference between different sense channels or the different detection module, guarantee that detection module can adapt to different working environments, antijamming capability is provided.
The data processing module of communication board (being the LT-CM card) mainly comprises five parts such as center processor (P89C669FN), communication interface (MAX232ESC), memory cell (AM29F016D), data-interface (HC245) and real-time clock.The microprocessor of wherein said center processor (P89C669FN) the two serial ports of high-performance that to be a slice produced by PHILIPS company, by with the cooperating of other peripheral circuit, realize functions such as status scan, calculating, communication.Communication interface (MAX232ESC) is used for communication board is connected with the computing machine of Surveillance center.And memory cell (AM29F016D) is used for storage detection daily record, can repeat erasable 1,000,000 times.Real-time timepiece chip provides a reliable and stable real-time clock to system, and under the situation that accident has a power failure, the battery on the integrated circuit board can provide about 3 months holding time to real-time clock.Data processing module is connected with detection module, serial communication processing module, ethernet communication processing module and cdma communication processing module by data-interface (HC245).
In addition, serial communication processing module, ethernet communication processing module and the cdma communication processing module of the utility model wagon detector by being reserved on the communication board can provide different connectors for different application scenarios easily.
Communication board is responsible for all data from check-out console are gathered and handled, promptly be responsible for the vehicle pass-through and the existence in each detected all track of piece check-out console of scanning, thereby calculate the vehicle fleet size in each track, the speed of vehicle, calculate the data such as vehicle occupation rate in each track again, produce corresponding vehicle daily record and be stored on the communication board in the memory cell; On the other hand, communication board is also by communication interface (MAX232ESC), is responsible for the compunication with Surveillance center, data is sent to Surveillance center, and handles all serial communications and error reporting or the like.
The foregoing description is the utility model preferred implementation; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (7)
1. wagon detector, comprise power panel, communication board, some check-out consoles and inductive coil, power panel is given communication board and some check-out console power supplies, it is characterized in that: described check-out console mainly is made of detection module, and wherein detection module mainly is made up of oscillator and frequency selective switch thereof; Described communication board mainly is made of data processing module, serial communication processing module, ethernet communication processing module and cdma communication processing module, and wherein data processing module mainly is made of center processor, memory cell; The input end of detection module is connected with inductive coil, and output terminal is connected with the center processor of communication board.
2. wagon detector according to claim 1 is characterized in that: described center processor is embedded 16 bit CPUs.
3. wagon detector according to claim 1 is characterized in that: also be provided with the pilot lamp that is used to indicate the lane detection state on the described detection module panel.
4. wagon detector according to claim 1 is characterized in that: described inductive coil is the non-contact inductive coil, and with the input end wireless connections of detection module.
5. wagon detector according to claim 1 is characterized in that: described detection module also comprises and is arranged on sensitivity switch on the detection module panel, that be used to be provided with lane detection sensitivity and vehicle life period.
6. wagon detector according to claim 1 is characterized in that: described check-out console has the 2-5 piece.
7. wagon detector according to claim 6 is characterized in that: described check-out console has 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200550307U CN201584057U (en) | 2009-04-21 | 2009-04-21 | Vehicle detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200550307U CN201584057U (en) | 2009-04-21 | 2009-04-21 | Vehicle detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201584057U true CN201584057U (en) | 2010-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200550307U Expired - Fee Related CN201584057U (en) | 2009-04-21 | 2009-04-21 | Vehicle detector |
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| CN (1) | CN201584057U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013082786A1 (en) * | 2011-12-08 | 2013-06-13 | 无锡米兰磁传感网络有限公司 | Dual-mode vehicle detection sensor |
| CN103647728A (en) * | 2013-12-07 | 2014-03-19 | 成都亿盟恒信科技有限公司 | STM32 single chip microcomputer and Linux system high-speed series port anti-interference communication method |
| CN104537846A (en) * | 2014-12-19 | 2015-04-22 | 深圳市捷顺科技实业股份有限公司 | Ground sensor processor interference processing method and system |
-
2009
- 2009-04-21 CN CN2009200550307U patent/CN201584057U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013082786A1 (en) * | 2011-12-08 | 2013-06-13 | 无锡米兰磁传感网络有限公司 | Dual-mode vehicle detection sensor |
| CN103647728A (en) * | 2013-12-07 | 2014-03-19 | 成都亿盟恒信科技有限公司 | STM32 single chip microcomputer and Linux system high-speed series port anti-interference communication method |
| CN103647728B (en) * | 2013-12-07 | 2016-06-08 | 成都亿盟恒信科技有限公司 | A kind of STM32 micro-chip and Linux system high-speed serial ports Anti-jamming Communication method |
| CN104537846A (en) * | 2014-12-19 | 2015-04-22 | 深圳市捷顺科技实业股份有限公司 | Ground sensor processor interference processing method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20110421 |