CN206833706U - Wireless vehicle detecting system - Google Patents
Wireless vehicle detecting system Download PDFInfo
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- CN206833706U CN206833706U CN201720692700.0U CN201720692700U CN206833706U CN 206833706 U CN206833706 U CN 206833706U CN 201720692700 U CN201720692700 U CN 201720692700U CN 206833706 U CN206833706 U CN 206833706U
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Abstract
Wireless vehicle detecting system provided by the utility model, detect whether that vehicle drives through by three axle GMRs in each detection node, judged result, detection node position are transmitted to end is controlled eventually through wireless transport module, telegon, and the judgement of vehicle is repeatedly carried out during the traveling of vehicle；Load-bearing and tyre type by each weighing sensor and tire type identification sensor detected vehicle, and testing result is transmitted to end is controlled eventually, by controlling end computing eventually, judging whether vehicle overloads through wireless transport module, telegon；By setting weighing sensor and at least 2 sensors are parallel with pre-determined distance in tyre type identification sensor, the travel speed of vehicle can be calculated；The utility model is provided with the detection node of more than 1, can be achieved, to vehicle, load-carrying, the detection of hypervelocity multiple spot and lasting detection, to avoid driver and in the process of moving to escape detection and the situation of punishment speed governing or unloading occur, improve detection efficiency.
Description
Technical field
It the utility model is related to vehicles detection technique, particularly wireless vehicle detecting system.
Background technology
Traffic is the arterial system in city, has properly settled development and the common people that traffic problems are favorably improved national economy
Living standard.Along with the steady growth of World Economics, urbanization process is progressively accelerated, and lives of the people level steadily improves,
City automobile recoverable amount has obtained the soaring of explosion type, and it increases the further development that not only have stimulated social economy rapidly,
And substantially increase the facility of people's trip.In contrast be exactly that city automobile recoverable amount rises rapidly, and the magnitude of traffic flow is fast
The problems such as speed increase, urban transportation situation but go from bad to worse, and the traffic accident thus triggered takes place frequently is growed in intensity.
China's total vehicle accounts for the 3% of the whole world, but the death toll caused by traffic accident accounts for the 20% of the whole world,
The cause of wherein most traffic accident is overload and hypervelocity, it is necessary to which the containment overload that takes measures, the phenomenon of hypervelocity occur.Pin
To Traffic Systems, high-speed transit mechanism, corresponding vehicle detecting system is developed, but shortcoming and defect be present.
Existing vehicle detecting system, it can only typically detect hypervelocity or overloading can only be detected, and can not be complete
Journey carries out continuing tracking and detection for vehicle, it is impossible to evades the situation of the deceleration of driver midway or unloading so that testing result
There is missing inspection or flase drop, cause detection efficiency low.
Utility model content
The utility model provides wireless vehicle detecting system, solves the existing overload of existing vehicle detecting system, hypervelocity inspection
Survey the problem of efficiency is low.
Wireless vehicle detecting system, including telegon, whole control end and at least one detection node；
Each detection node is arranged on each fork crossing；In each detection node, include three axle GMRs,
Signal-regulated kinase, controller module, wireless transport module, at least one weighing sensor, the identification of at least one tyre type pass
Sensor；In each detection node, the output of each weighing sensor, tyre type identification sensor, three axle GMRs
Signal is inputted into controller module after Signal-regulated kinase is nursed one's health, and is transmitted by wireless transport module to telegon,
And finally transmit to control end eventually；The control terminal of the weighing sensor is connected with controller module, the tyre type identification
The control terminal of sensor is connected with controller module；The end of control eventually sets major trunk roads to export；Including weighing sensor and tire
In each sensor including type identification sensor, at least 2 sensors are be arranged in parallel with pre-determined distance.
Further, in each detection node, AMR sensor is also included；The output end of the AMR sensor with
The input of Signal-regulated kinase is connected.
Further, the wireless transport module is WiFi or bluetooth.
Further, the Signal-regulated kinase by primary amplifying circuit, filter circuit, secondary amplification circuit and compares
Circuit forms；The primary amplifying circuit receives the output signal of the three axles GMR, filtered circuit is filtered,
Output is into controller module after carrying out secondary amplification through secondary amplification circuit, be compared through comparison circuit.
Further, each weighing sensor is set with road-center in a angles, wherein 45 °≤a≤80 °；It is described each
Tyre type identification sensor is set with road-center in b angles, wherein 30 ＜ b ＜ 60.
Further, the pre-determined distance is n, wherein 2m≤n≤4m.The advantages of the utility model is with effect：
1st, the changes of magnetic field when each detection node is passed through by three axle GMRs detection vehicle traveling, produces change
Voltage, voltage signal inputted into controller module, determines whether that vehicle drives through with this, judged result, detection section
Point position is transmitted to end is controlled eventually through wireless transport module, telegon, and the judgement of vehicle is repeatedly carried out during the traveling of vehicle；
Load-bearing and tyre type by each weighing sensor and tire type identification sensor detected vehicle, and testing result is passed through
Wireless transport module, telegon are transmitted to end is controlled eventually, are used prior art computing by controlling end eventually, are judged whether vehicle overloads；It is logical
Cross in each sensor of the setting including weighing sensor and tyre type identification sensor, at least 2 sensors are with pre-
If apart from parallel, it is be arranged in parallel by this, the travel speed of vehicle can be calculated；The utility model is provided with more than 1
Detection node, achievable to vehicle, load-carrying, the detection of hypervelocity multiple spot and lasting detection, it is to escape in the process of moving that can avoid driver
Keep away detection and the situation of punishment speed governing or unloading occurs, improve detection efficiency；
2nd, AMR sensor is set up in each detection node, for aiding in three axle GMRs to carry out vehicle detection, in three axles
When GMR breaks down or other reasonses lead to not detection, AMR sensor is started working, and takes over three axle GMR sensings
Device carries out vehicle detection, avoids the occurrence of detection and interrupts.
Brief description of the drawings
Fig. 1 is the utility model structural principle block diagram.
Embodiment
The utility model is described in further detail with reference to embodiments, but the utility model is not limited to these implementations
Example.
Wireless vehicle detecting system, including telegon, whole control end and at least one detection node；Each detection node
It is arranged on each fork crossing；In each detection node, include three axle GMRs, Signal-regulated kinase, controller mould
Block, wireless transport module, at least one weighing sensor, at least one tyre type identification sensor；In each detection node,
Each weighing sensor, tyre type identification sensor, the output signal of three axle GMRs are carried out through Signal-regulated kinase
After conditioning, input into controller module, and transmitted by wireless transport module to telegon, and finally transmit to control end eventually；Institute
The control terminal for stating weighing sensor is connected with controller module, control terminal and the controller mould of the tyre type identification sensor
Block is connected；The end of control eventually sets major trunk roads to export；Each biography including weighing sensor and tyre type identification sensor
In sensor, at least 2 sensors are be arranged in parallel with pre-determined distance.
Dual axis orthogonal spin valve giant magnetoresistance sensor SAS022-1 and single shaft spin valve giant magnetoresistance sensor is used in combination
VA100F3, three axle GMRs are formed, to realize three shaft detections to vehicle.When there is vehicle to pass through, vehicle is to earth magnetism shape
Into disturbance so that magnetic field size and Orientation changes, three axle GMRs from the changes of tri- angle detecting earth magnetism of X, Y, Z,
Corresponding voltage signal is converted into, is inputted into controller module.No matter two cars simultaneously travel by same test point, two
Car, which head-on travels, passes through same test point, only a car one-way traffic, can carry out three shaft detections, according to the size of voltage and
Whether walking direction goes out vehicle process, and draws the travel direction of vehicle.
The gravity that weighing sensor will act on testee is converted into measurable output signal by a certain percentage.
Detection node sets weighing unit, and weighing sensor is uniformly arranged below weighing unit, when vehicle passes through weighing unit, weighing sensor
The weight information of vehicle can be detected.When controller module judges to have the vehicle pass through according to the information of three axle GMRs, open
Dynamic weighing sensor carries out detection of weighing.Each weighing sensor is set with road-center in a angles, wherein 45 °≤a≤80 °, this
It is due to the width that right and left span of the weighing sensor on vehicle heading is equal to road, sets at an angle,
It is favorably improved the degree of accuracy of detection.
Tyre type identification sensor mainly includes gobo, at least two rubber spring and at least two photoelectric sensor,
The quantity of rubber spring is identical with photoelectric sensor quantity.Photoelectric sensor is inline, each photoelectric sensor just on
Side sets 1 rubber spring, and rubber spring is in dome shape, and there is twice annular seal groove its top, and its bottom connects with gobo
Integrally.Tyre type identification sensor is arranged on road, vertical with vehicle heading.When vehicle is known by tyre type
During individual sensor, the rubber spring with gobo produces deformation, and at this pressure, the signal that photoelectric sensor is sent is by shading
Cloth blocks, and produces inductive displacement, and controller module is according to prior art, with the photoelectric sensor that is pressed onto in vehicle travel process
Quantity and the regularity of distribution are data basis, the tyre type for judging vehicle be single tire, twin tires, three tires, four tires or
It is other more tires.When controller module judges to have the vehicle pass through according to the information of three axle GMRs, start tire
Type identification sensor carries out tyre type identification.Each tyre type identification sensor is set with road-center in b angles,
Wherein 30 ＜ b ＜ 60.This is due to that right and left span of the tyre type identification sensor on vehicle heading is equal to road
The width on road, is set at an angle, is favorably improved the degree of accuracy of detection.
In each sensor including weighing sensor and tyre type identification sensor, at least 2 sensors with
The pre-determined distance pre-determined distance that be arranged in parallel is n, wherein 2m≤n≤4m.Be arranged in parallel by pre-determined distance of n, equivalent to away from
From certain, vehicle passes through the time used in the two parallel sensors, can detect that, according to away from discrete time, Bian Kezhi
The travel speed of vehicle in the road segment limit, it can be used as the data basis that hypervelocity judges.
Signal-regulated kinase is made up of primary amplifying circuit, filter circuit, secondary amplification circuit and comparison circuit；It is described
Primary amplifying circuit receives the output signal of the GMR, and filtered circuit is filtered, carried out through secondary amplification circuit
Secondary amplification, exported after being compared through comparison circuit into controller module.Due to each sensor output signal, have plenty of
Millivolt level and contain noise, therefore, signal is inputted to controller module, the processing such as need to be amplified, filter.Primary amplification electricity
Road is used to realize small multiple amplification, enters secondary amplification circuit after filtered, and plus and blowup, warp are carried out in secondary amplification circuit
The signal for crossing two-stage amplification is inputted to comparison circuit, will by changing adjustment of sensitivity of the threshold voltage realization to each sensor
Threshold voltage is turned down, then sensitivity increase.
The wireless transport module is WiFi or bluetooth.WiFi can realize MANET, by each detection node and telegon
Wireless sensor network is formed, is mainly used in transmitting the signal that each sensor detects to telegon, and be finally transferred to end
Control end.WiFi working frequency is a kind of Ethernet infinite expanding and provides access WLAN closely in 2.4MHz
Wireless communication technology, with transmission speed is fast, radio wave coverage is wide, operating distance is long, need not wiring and health and safety
The characteristics of.
Control end is located at major trunk roads outlet eventually, once vehicle comes in and goes out from major trunk roads, will be detected, and controls end eventually and adjusts at once
Go out the travel speed and load-carrying data that each detection node goes out in vehicle running section, judge whether vehicle load-carrying occurs and surpass
Speed, warned to car owner, and traffic data is back to traffic hub, be easy to accordingly punish vehicle.
Can also be as needed, in each detection node, AMR sensor is set；The output end and letter of the AMR sensor
The input of number conditioning module is connected.AMR magnetic sensor forms Wheatstone bridge when application bias magnetic field is in electricity by four magnetic resistance
When on bridge, the direction of magnetization of two resistance staggered relatively will rotate towards the sense of current, and the resistance of the two resistance can increase
Add；And the direction of magnetization of two other resistance staggered relatively can rotate towards the direction opposite with electric current, the resistance of two resistance
Value is then reduced.By two output end output difference voltage signals of test electric bridge, external magnetic field value can be obtained.Respectively sensed to AMR
The measurement range of device is that the magnetic for being best suitable for being operated under the environment of magnetic field of the earth passes exactly centered on the distribution of magnetic field of the earth
The advantages that sensor, has that precision is high, small volume, and stability is good.AMR magnetoresistive transducers can sense being less than in the range of earth's magnetic field
The magnetic field of 1 Gauss.Because the earth is huge magnetic field, when this kind of big magnet of vehicle by when, earth's magnetic field can be caused local
Disturbance.Magnetic Sensor can detect the presence of vehicle, travel direction, travel speed, vehicle size etc..
The course of work of the present utility model is：
GMR has detected whether vehicle pass-through, and detection signal is inputted to Signal-regulated kinase and nursed one's health, when there is car
When current, controller module starts weighing sensor and tyre type identification sensor, carries out weigh detection and tire respectively
Type detection, detection data be back in controller module, vehicle traveling pass through detection node position, vehicle detection signal,
Weighing-up wave and tyre type signal are transmitted to end is controlled eventually, by controlling end eventually according to existing skill through wireless transport module, telegon
Art calculates, judges whether vehicle is overweight, hypervelocity；When GMR can not normal operation when, controller module receive AMR pass
Sensor signal, carry out vehicle detection.
Claims (6)
1. wireless vehicle detecting system, it is characterised in that：
Including telegon, end and at least one detection node are controlled eventually；
Each detection node is arranged on each fork crossing；In each detection node, include three axle GMRs, signal
Conditioning module, controller module, wireless transport module, at least one weighing sensor, at least one tyre type identification sensor；
In each detection node, the output of each weighing sensor, tyre type identification sensor, three axle GMRs
Signal is inputted into controller module after Signal-regulated kinase is nursed one's health, and is transmitted by wireless transport module to telegon,
And finally transmit to control end eventually；The control terminal of the weighing sensor is connected with controller module, and the tyre type identification passes
The control terminal of sensor is connected with controller module；The end of control eventually sets major trunk roads to export；
In each sensor including weighing sensor and tyre type identification sensor, at least 2 sensors are with default
Distance be arranged in parallel.
2. wireless vehicle detecting system according to claim 1, it is characterised in that：
In each detection node, also include AMR sensor；The output end and Signal-regulated kinase of the AMR sensor
Input be connected.
3. wireless vehicle detecting system according to claim 1, it is characterised in that：The wireless transport module be WiFi or
Bluetooth.
4. wireless vehicle detecting system according to claim 1, it is characterised in that：
The Signal-regulated kinase is made up of primary amplifying circuit, filter circuit, secondary amplification circuit and comparison circuit；It is described
Primary amplifying circuit receives the output signal of the three axles GMR, and filtered circuit is filtered, through secondary amplification circuit
Carry out secondary amplification, output afterwards is compared through comparison circuit into controller module.
5. wireless vehicle detecting system according to claim 1, it is characterised in that：
Each weighing sensor is set with road-center in a angles, wherein 45 °≤a≤80 °；
Each tyre type identification sensor is set with road-center in b angles, wherein 30 ＜ b ＜ 60.
6. wireless vehicle detecting system according to claim 1, it is characterised in that：The pre-determined distance is n, wherein 2m≤
n≤4m。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720692700.0U CN206833706U (en) | 2017-06-14 | 2017-06-14 | Wireless vehicle detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720692700.0U CN206833706U (en) | 2017-06-14 | 2017-06-14 | Wireless vehicle detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206833706U true CN206833706U (en) | 2018-01-02 |
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ID=60775988
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720692700.0U Expired - Fee Related CN206833706U (en) | 2017-06-14 | 2017-06-14 | Wireless vehicle detecting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN206833706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111462526A (en) * | 2019-01-21 | 2020-07-28 | 汤博宇 | Road warning device |
-
2017
- 2017-06-14 CN CN201720692700.0U patent/CN206833706U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111462526A (en) * | 2019-01-21 | 2020-07-28 | 汤博宇 | Road warning device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20190614 |