CN209785255U - Double-annular coil traffic flow statistical device - Google Patents
Double-annular coil traffic flow statistical device Download PDFInfo
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- CN209785255U CN209785255U CN201920474341.0U CN201920474341U CN209785255U CN 209785255 U CN209785255 U CN 209785255U CN 201920474341 U CN201920474341 U CN 201920474341U CN 209785255 U CN209785255 U CN 209785255U
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Abstract
the utility model provides a two loop coil traffic flow statistics device, include: the first detection device comprises a first sensor module, a first amplifier and a first A/D conversion module, wherein the first sensor module, the first amplifier and the first A/D conversion module are sequentially connected; the second detection device comprises a second sensor module, a second amplifier and a second A/D conversion module; the judging module is connected with the first A/D conversion module and the second A/D conversion module; the storage module is connected with the judging module; the communication module is connected with the storage module; the first sensor module and the second sensor module are both loop coil detectors buried on a traffic road, and the second detection device is buried behind the first detection device in the automobile traveling direction. The utility model discloses a double annular coil traffic flow statistics device not only can improve road traffic flow detection's interference killing feature and precision, can also make statistics of road traffic flow, makes preparation for alleviating urban traffic pressure.
Description
Technical Field
The utility model belongs to modern electronic technology road traffic field, concretely relates to two loop coil traffic statistics device.
Background
Urban traffic problems are more prominent today when urban economy is developing rapidly. People waste more and more time on traffic jam during work and work, and the problem of urban traffic jam in China has been paid more and more attention. The premise for improving the urban traffic jam problem is to count the traffic flow of the traffic road.
however, the existing technology for detecting and counting the vehicle flow by using the annular coil is based on a single annular coil, and the single annular coil has the defects of insufficient anti-interference capability and large error in actual use.
SUMMERY OF THE UTILITY MODEL
to above-mentioned problem, the problem that the interference killing feature is not enough and the error is big for solving existence among the prior art, the utility model provides a two loop coil traffic flow statistics device.
in order to solve the technical problem, the utility model adopts the following technical scheme:
A dual toroid traffic flow statistics apparatus comprising:
The first detection device is used for detecting and counting the traffic flow and comprises a first sensor module, a first amplifier and a first A/D conversion module, wherein the first sensor module, the first amplifier and the first A/D conversion module are sequentially connected;
The second detection device is used for assisting the first detection device in detecting and counting the traffic flow, and comprises a second sensor module, a second amplifier and a second A/D conversion module;
The judging module is connected with the first A/D conversion module and the second A/D conversion module;
the storage module is connected with the judging module;
The communication module is connected with the storage module;
The first sensor module and the second sensor module are both annular coil detectors buried on a traffic road, the traffic flow is monitored by using the change of inductance in a coil loop, and the second detection device is buried behind the first detection device in the traveling direction of the automobile.
Furthermore, the communication module is a 4G communication module.
Furthermore, the judging module in the first detecting device is an and gate circuit, and the traffic information is stored in the storage module only when the first amplifier and the second amplifier have high level signals at the same time.
Furthermore, the first sensor module and the second sensor module are rectangular loop coil detectors, and the first sensor module and the second sensor module are connected with the judgment module through enameled wires
The utility model has the advantages that:
1. The utility model discloses a double annular coil detection device can improve road vehicle flow detection's interference killing feature and precision.
2. Through the double-annular coil traffic flow counting device, the traffic flow of roads can be counted, and preparation is made for relieving urban traffic pressure.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a diagram of an exemplary embodiment of the present invention.
FIG. 2 is a structural diagram of the device of the present invention;
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
in order to thoroughly understand the present invention, detailed steps and detailed structures will be provided in the following description so as to explain the technical solution of the present invention. The preferred embodiments of the present invention are described in detail below, however, other embodiments of the present invention are possible in addition to these detailed descriptions.
A double-annular coil traffic flow counting device comprises a first detection device 2, a second detection device 3, a judgment module 7, a storage module 8 and a communication module 9. The first detection device 2 and the second detection device 3 are connected with the judgment module 7 at the same time, and the judgment module 7, the storage module 8 and the communication module 9 are connected in sequence. The first detecting device 2 is placed in front of the second detecting device 3 in the traveling direction of the vehicle. When a vehicle 1 passes through a road, the vehicle firstly passes through the first detection device 2 and then passes through the second detection device 3. The second detection device 3 assists the first detection device 2 in detecting and counting traffic flow. As shown in fig. 1.
The first detecting device 2 and the second detecting device 3 will be further described below.
the first detection device 2 is used for detecting and counting the traffic flow, and the first detection device 2 comprises a first sensor module 4, a first amplifier 5 and a first A/D conversion module 6. The first sensor module 4, the first amplifier 5 and the first A/D conversion module 6 are connected in sequence, wherein the first sensor module 4 is buried in the cross-channel.
the second detection device 3 is used for assisting the first detection device 2 in detecting and counting the traffic flow, and the second detection device 3 comprises a second sensor module 10, a second amplifier 11 and a second a/D conversion module 12. The second sensor module 10, the second amplifier 11 and the second a/D conversion module 12 are connected in sequence, and the second sensor module 10 is buried in the traffic channel.
The first A/D conversion module 6 and the second A/D conversion module 12 are connected with the judgment module 7 through enameled wires.
The first sensor module 4 and the second sensor module 10 are loop coil detectors, and there is a constantly changing current in the coil, thereby generating a constantly changing electric field and magnetic field. When the coil is placed on the road surface, whether a vehicle passes through the coil can be known according to whether the inductance in the coil loop changes. When a vehicle passes by the toroidal coil, the toroidal coil is subjected to a continuous pressure. When the pressure exceeds a certain range, interference of pedestrians and non-motor vehicles is eliminated. When the first detection device 2 determines that a vehicle passes by, the first amplifier 5 amplifies the analog signal, the first A/D conversion module 6 converts the pressure analog signal into a digital electric signal, and the digital electric signal is sent to the judgment module 7. When the second detection device 3 determines that the vehicle passes through, the analog signal is amplified by the second amplifier 11, the pressure analog signal is converted into a digital electric signal by the second a/D conversion module 12, and the digital electric signal is sent to the judgment module 7.
the judgment module 7 is an and circuit. When the digital electric signals sent by the first a/D conversion module 6 and the second a/D conversion module 12 are received by the judgment module 7 at the same time, the judgment module 7 judges that a vehicle passes above the loop coil at this time, and if only the first a/D conversion module 6 sends the digital electric signals or only the second a/D conversion module 12 sends the digital electric signals, the judgment module 7 judges that no vehicle passes above the loop coil at this time. The first detection device 2 and the second detection device 3 can only store the traffic flow information into the storage module 8 through the judgment module 7, so that the occurrence of error electric signals caused by interference of the first detection device 2 or the second detection device 3 is avoided, and the traffic flow with higher precision is obtained.
the storage module 8 stores and counts the received traffic flow information, and sends the traffic flow information to the traffic department at regular time through the communication module 9, so that the traffic department can conveniently regulate and control road traffic. Optionally, the storage module 8 is a server, and the communication module 9 is a 4G communication module.
The utility model discloses a two loop circle traffic flow statistics device, the second sensor module 10 among the first sensor module 4 among the first detection device 2 and the second detection device 3 detects road car flow respectively, all sends the result that detects for judging module 7. When the judging module 7 receives signals sent by the first A/D conversion module 6 and the second A/D conversion module 12 at the same time, the judging module 7 judges that the double-loop traffic flow counting device detects the traffic flow of the road, so that an error signal is avoided when a certain loop is interfered, and the double-loop traffic flow counting device has reliable vehicle detection performance. The judging module sends the traffic flow information of 7 to the storage module 8, and the storage module 8 counts the traffic flow and sends the traffic flow to the traffic department through the communication module 9.
The above description is directed to the preferred embodiment of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; without departing from the scope of the invention, it is intended that the present invention shall not be limited to the above-described embodiments, but that the present invention shall include all the modifications and variations of the embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.
Claims (4)
1. a dual loop coil traffic flow statistics apparatus, comprising:
The first detection device is used for detecting and counting the traffic flow and comprises a first sensor module, a first amplifier and a first A/D conversion module, wherein the first sensor module, the first amplifier and the first A/D conversion module are sequentially connected;
The second detection device is used for assisting the first detection device in detecting and counting the traffic flow, and comprises a second sensor module, a second amplifier and a second A/D conversion module;
the judging module is connected with the first A/D conversion module and the second A/D conversion module;
The storage module is connected with the judging module;
The communication module is connected with the storage module;
The first sensor module and the second sensor module are both annular coil detectors buried on a traffic road, the traffic flow is monitored by using the change of inductance in a coil loop, and the second detection device is buried behind the first detection device in the traveling direction of the automobile.
2. The dual loop coil traffic flow statistics apparatus of claim 1 wherein the communications module is a 4G communications module.
3. The dual loop coil traffic flow statistics apparatus of claim 1 wherein the determining module of the first detecting means is an and circuit that stores traffic flow information in the storage module only when the first amplifier and the second amplifier have a high signal.
4. The dual-loop coil traffic flow statistics device of claim 1, wherein the first sensor module and the second sensor module are rectangular loop coil detectors, and the first sensor module and the second sensor module are connected to the determination module through enameled wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920474341.0U CN209785255U (en) | 2019-04-09 | 2019-04-09 | Double-annular coil traffic flow statistical device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920474341.0U CN209785255U (en) | 2019-04-09 | 2019-04-09 | Double-annular coil traffic flow statistical device |
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| Publication Number | Publication Date |
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| CN209785255U true CN209785255U (en) | 2019-12-13 |
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| CN201920474341.0U Expired - Fee Related CN209785255U (en) | 2019-04-09 | 2019-04-09 | Double-annular coil traffic flow statistical device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114373313A (en) * | 2022-01-13 | 2022-04-19 | 上海工程技术大学 | Self-adaptive traffic light control system based on big data and method thereof |
-
2019
- 2019-04-09 CN CN201920474341.0U patent/CN209785255U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114373313A (en) * | 2022-01-13 | 2022-04-19 | 上海工程技术大学 | Self-adaptive traffic light control system based on big data and method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 |