CN110874937A - Vehicle detector with high detection precision and use method thereof - Google Patents
Vehicle detector with high detection precision and use method thereof Download PDFInfo
- Publication number
- CN110874937A CN110874937A CN201911308946.3A CN201911308946A CN110874937A CN 110874937 A CN110874937 A CN 110874937A CN 201911308946 A CN201911308946 A CN 201911308946A CN 110874937 A CN110874937 A CN 110874937A
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- infrared
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- mainboard
- interface
- infrared emission
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
- G08G1/145—Traffic control systems for road vehicles indicating individual free spaces in parking areas where the indication depends on the parking areas
Abstract
The invention discloses a vehicle detector with high detection precision and a using method thereof, and relates to the technical field of vehicle detectors. This detect high vehicle inspection ware of precision, including the mounting panel, the both sides on the mounting panel positive surface all are provided with detection mechanism. The vehicle detector with high detection precision and the using method thereof separate an infrared emission unit from an infrared induction unit, adjust the angle between the emission unit and a receiving unit through a special structure device to enable the infrared reflection effect to be optimal, the receiving unit carries out infrared filtering to filter out infrared interference generated in the surrounding environment, the infrared emission unit adjusts the emission power through PWM, the infrared emission power can be continuously adjusted in the detection process, and therefore the vehicle detector is suitable for vehicles with different chassis heights, meanwhile, the infrared receiving unit adopts simulated receiving detection to detect specific infrared lumen values, the detection algorithm adopts an infrared detection proportion algorithm, and the anti-interference capability is enhanced and the detection accuracy is improved through the algorithm.
Description
Technical Field
The invention relates to the technical field of vehicle detectors, in particular to a vehicle detector with high detection precision and a using method thereof.
Background
The vehicle inspection device is a device for detecting whether a vehicle exists, and the vehicle inspection device in the prior art generally adopts an infrared detection mode for detection operation.
The original infrared detection mode adopts a simple trigger mode to detect, infrared emission fixed power, and an infrared sensor receives reflected infrared intensity and judges whether a vehicle exists or not by judging whether the received intensity exceeds a certain absolute value or not. This kind of mode has many limitations, because infrared power is uncontrollable, to the car of co-altitude not, has certain wrong report, and the commonality is poor, because judge through the absolute value of infrared intensity, receives the interference of ambient light very easily, especially the influence of very easy sunlight, once there is sunlight irradiation on the detector, will detect the mistake, consequently, can not be applicable to outdoor completely, infrared emission and infrared induction distance are very close, produce self-interference easily.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a vehicle detector with high detection precision and a using method thereof, and solves the problems that the original infrared detection mode adopts a simple trigger type detection, infrared emission is fixed in power, an infrared sensor receives reflected infrared intensity, and whether a vehicle exists is judged by judging whether the received intensity exceeds a certain absolute value. This kind of mode has many limitations, because infrared power is uncontrollable, to the car of co-altitude not, has certain wrong report, and the commonality is poor, because judge through the absolute value of infrared intensity, receives the interference of ambient light very easily, especially the influence of very easy sunlight, once there is sunlight irradiation on the detector, will detect the mistake, consequently, can not be applicable to in the open air completely, infrared emission is very close with infrared induction distance, produces the problem of self-interference easily.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a vehicle detector with high detection precision comprises a mounting plate, wherein detection mechanisms are arranged on two sides of the front surface of the mounting plate;
the detection mechanism comprises a detection shell, an infrared emission module, a light sensing module and an indicator light are respectively arranged on the front surface of the detection shell, the light sensing module is provided with an infrared filtering function, and the infrared emission module can adjust the emission power through PWM;
the inner cavity of the detection shell is fixedly connected with a control mainboard through bolts, and the control mainboard is fixedly connected with a magnetometer and a wireless signal transceiver;
the control mainboard is provided with a super capacitor, a charge-discharge management circuit, a light indicating circuit, an embedded single chip microcomputer, a clock circuit, an infrared emission power supply control circuit, a power supply circuit, a current detection circuit, a magnetometer interface, an infrared emission interface, a light sensor interface and a ground lock mainboard interface respectively, and different components are electrically connected with one another.
Preferably, the top and the bottom of the two sides of the mounting plate are both provided with mounting holes.
Preferably, the mounting panel is including the installation mainboard, the top on installation mainboard positive surface is provided with the roof, there is the baffle bottom of roof through pivot swing joint, the bottom of baffle welds on the installation mainboard.
Preferably, the number of the infrared emission modules is four, and the infrared emission modules are arranged above the light sensing modules.
Preferably, the number of the indicator lights is three, and the indicator lights are red lights, green lights and blue lights in sequence from left to right.
The use method of the high-detection-precision vehicle inspection device comprises the high-detection-precision vehicle inspection device in claim 1, and comprises the following specific working procedures:
before working, the input end of the peripheral off-position ground lock is electrically connected with a ground lock mainboard interface on the control mainboard, and the control mainboard controls the state of the peripheral off-position ground lock through the ground lock mainboard interface;
during operation, the control mainboard passes through infrared emission interface control infrared emission module work, the infrared signal that infrared emission module produced is received by the light sense module and is sent to the control mainboard through the light sense ware interface (can reflect infrared signal when the vehicle stops at infrared emission module top, thereby make the signal that the light sense module was experienced strengthen), detect the magnetic field of current top through the magnetometer (when the vehicle stops on the magnetometer, magnetic field intensity can change), and send the magnetic field condition to the control mainboard through the magnetometer interface on the control mainboard, the control mainboard is through the magnetic field intensity and the infrared signal intensity that detect and judge current vehicle position, and through the state of off-position ground lock of ground lock mainboard interface control peripheral hardware, its specific control condition is as follows: (wherein A is a trigger threshold and B is a decision threshold, B is greater than A)
During operation, the control mainboard controls the indicator lamp to work through the light indicating circuit, and the specific control mode is as follows:
(III) advantageous effects
The invention provides a vehicle detector with high detection precision and a using method thereof. The method has the following beneficial effects:
(1) the vehicle detector with high detection precision and the use method thereof separate the infrared transmitting unit from the infrared sensing unit, adjust the angle between the transmitting unit and the receiving unit through a special structure device, enable the infrared reflection effect to be optimal, greatly weaken the self reflection of the shell body at the same time, and enable the receiving unit to carry out infrared filtering to filter out infrared interference generated in the surrounding environment, particularly infrared rays of other wave bands in sunlight.
(2) According to the vehicle detector with high detection precision and the using method thereof, the infrared transmitting unit adjusts the transmitting power through PWM, and can continuously adjust the infrared transmitting power in the detection process, so that the vehicle detector is suitable for vehicles with different chassis heights, meanwhile, the infrared receiving unit adopts simulated receiving detection, specific infrared lumen values can be detected, the detection algorithm adopts an infrared detection proportion algorithm, and the anti-interference capability and the detection accuracy are enhanced through the algorithm.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the mounting plate of the present invention;
FIG. 3 is a schematic structural diagram of the detecting mechanism of the present invention;
FIG. 4 is a cross-sectional view of the sensing mechanism of the present invention;
fig. 5 is a block diagram of a control motherboard according to the present invention.
In the figure: 1. mounting a plate; 11. a top plate; 12. a baffle plate; 13. installing a main board; 2. a detection mechanism; 21. an infrared emission module; 22. detecting the shell; 23. a light sensing module; 24. an indicator light; 25. a magnetometer; 26. a control main board; 27. a wireless signal transceiver; 3. and (7) installing holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a vehicle detector with high detection precision comprises a mounting plate 1, wherein the mounting plate 1 comprises a mounting main plate 13, a top plate 11 is arranged at the top of the front surface of the mounting main plate 13, the bottom of the top plate 11 is movably connected with a baffle plate 12 through a rotating shaft, the bottom of the baffle plate 12 is welded on the mounting main plate 13, mounting holes 3 are formed in the top and the bottom of two sides of the mounting plate 1, and detection mechanisms 2 are arranged on two sides of the front surface of the mounting plate 1;
the detection mechanism 2 comprises a detection shell 22, wherein the front surface of the detection shell 22 is respectively provided with an infrared emission module 21, a light sensation module 23 and indicator lamps 24, the number of the indicator lamps 24 is three, the indicator lamps are red lamps, green lamps and blue lamps from left to right in sequence, the light sensation module 23 is provided with an infrared filtering function, the infrared emission module 21 can adjust emission power through PWM, and the number of the infrared emission modules 21 is four and is arranged above the light sensation module 23;
the inner cavity of the detection shell 22 is fixedly connected with a control mainboard 26 through bolts, and a magnetometer 25 and a wireless signal transceiver 27 are fixedly connected to the control mainboard 26;
the control mainboard 26 is respectively provided with a super capacitor, a charge-discharge management circuit, a light indicating circuit, an embedded single chip microcomputer, a clock circuit, an infrared emission power supply control circuit, a power supply circuit, a current detection circuit, a magnetometer interface, an infrared emission interface, a light sensor interface and a ground lock mainboard interface, and different components are electrically connected with one another.
The use method of the high-detection-precision vehicle inspection device comprises the high-detection-precision vehicle inspection device in claim 1, and comprises the following specific working procedures:
before working, the input end of the peripheral off-position ground lock is electrically connected with a ground lock mainboard interface on the control mainboard 26, and the control mainboard 26 controls the state of the peripheral off-position ground lock through the ground lock mainboard interface;
during operation, control mainboard 26 is through the work of infrared emission module 21 of infrared emission interface control, the infrared signal that infrared emission module 21 produced is received by light sense module 23 and is sent to control mainboard 26 through the light sense ware interface (can reflect infrared signal when the vehicle stops at infrared emission module 21 top, thereby make the signal that light sense module 23 felt strengthen), detect the magnetic field of current top through magnetometer 25 (when the vehicle stops on magnetometer 25, magnetic field intensity can change), and send the magnetic field condition to control mainboard 26 through the magnetometer interface on the control mainboard 26, control mainboard 26 judges current vehicle position through the magnetic field intensity and the infrared signal intensity that detect, and the state of off-position ground lock of ground lock mainboard interface control peripheral hardware through ground lock, its specific control condition is as follows: (wherein A is a trigger threshold and B is a decision threshold, B is greater than A)
During operation, the control main board 26 controls the indicator light 24 to operate through the light indicating circuit, and the specific control mode is as follows:
in summary, the vehicle detector with high detection accuracy and the use method thereof separate the infrared emission unit from the infrared induction unit, adjust the angle between the emission unit and the receiving unit through a special structure device, so that the infrared reflection effect is optimal, simultaneously, the self reflection of the shell is greatly weakened, and simultaneously, the receiving unit carries out infrared filtering to filter out the infrared interference generated in the surrounding environment, especially the infrared rays of other wave bands in sunlight.
Meanwhile, the infrared transmitting unit adjusts the transmitting power through PWM, and can continuously adjust the infrared transmitting power in the detection process, so that the infrared detection device is suitable for vehicles with different chassis heights, meanwhile, the infrared receiving unit adopts simulated receiving detection to detect specific infrared lumen values, and the detection algorithm adopts an infrared detection proportion algorithm, so that the anti-interference capability is enhanced and the detection accuracy is improved through the algorithm.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a detect car inspection ware that precision is high which characterized in that: the device comprises a mounting plate (1), wherein detection mechanisms (2) are arranged on two sides of the front surface of the mounting plate (1);
the detection mechanism (2) comprises a detection shell (22), an infrared emission module (21), a light sensing module (23) and an indicator lamp (24) are respectively arranged on the front surface of the detection shell (22), the light sensing module (23) is provided with an infrared filtering function, and the infrared emission module (21) can adjust the emission power through PWM;
the inner cavity of the detection shell (22) is fixedly connected with a control mainboard (26) through bolts, and a magnetometer (25) and a wireless signal transceiver (27) are fixedly connected onto the control mainboard (26);
the control mainboard (26) is provided with a super capacitor, a charge-discharge management circuit, a light indicating circuit, an embedded single chip microcomputer, a clock circuit, an infrared emission power supply control circuit, a power supply circuit, a current detection circuit, a magnetometer interface, an infrared emission interface, a light sensor interface and a ground lock mainboard interface respectively, and different components are electrically connected with one another.
2. The vehicle inspection device with high detection accuracy as claimed in claim 1, wherein: the top and the bottom of the two sides of the mounting plate (1) are provided with mounting holes (3).
3. The vehicle inspection device with high detection accuracy as claimed in claim 1, wherein: mounting panel (1) is including installation mainboard (13), the top on installation mainboard (13) positive surface is provided with roof (11), there is baffle (12) bottom of roof (11) through pivot swing joint, the bottom of baffle (12) welds on installation mainboard (13).
4. The vehicle inspection device with high detection accuracy as claimed in claim 1, wherein: the number of the infrared emission modules (21) is four, and the infrared emission modules are arranged above the light sensing modules (23).
5. The vehicle inspection device with high detection accuracy as claimed in claim 1, wherein: the number of the indicating lamps (24) is three, and the indicating lamps are red lamps, green lamps and blue lamps from left to right in sequence.
6. A use method of a vehicle detector with high detection precision is characterized in that: the vehicle detector with high detection accuracy, which comprises the following specific working procedures:
before working, the input end of the external off-position ground lock is electrically connected with a ground lock mainboard interface on the control mainboard (26), and the control mainboard (26) controls the state of the off-position ground lock of the external equipment through the ground lock mainboard interface;
when the parking lock is in work, the control mainboard (26) controls the infrared emission module (21) to work through the infrared emission interface, an infrared signal generated by the infrared emission module (21) is received by the light sense module (23) and is sent to the control mainboard (26) through the light sense interface (when a vehicle stops at the top of the infrared emission module (21), the infrared signal is reflected, so that the signal sensed by the light sense module (23) is strengthened, a magnetic field above the current position is detected through the magnetometer (25) (when the vehicle stops on the magnetometer (25), the magnetic field strength can be changed), the magnetic field condition is sent to the control mainboard (26) through the magnetometer interface on the control mainboard (26), the control mainboard (26) judges the current position of the vehicle through the detected magnetic field strength and the infrared signal strength, and controls the state of a parking lock of a peripheral through the ground lock mainboard interface, the specific control conditions are as follows: (wherein A is a trigger threshold and B is a decision threshold, B is greater than A)
When the intelligent control system works, the control main board (26) controls the indicator lamp (24) to work through the light indicating circuit, and the specific control mode is as follows:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308946.3A CN110874937A (en) | 2019-12-18 | 2019-12-18 | Vehicle detector with high detection precision and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308946.3A CN110874937A (en) | 2019-12-18 | 2019-12-18 | Vehicle detector with high detection precision and use method thereof |
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| CN110874937A true CN110874937A (en) | 2020-03-10 |
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| CN201911308946.3A Pending CN110874937A (en) | 2019-12-18 | 2019-12-18 | Vehicle detector with high detection precision and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112925039A (en) * | 2021-01-22 | 2021-06-08 | 广东思理智能科技股份有限公司 | Sunlight interference resistant infrared goods position goods sensing method and system |
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2019
- 2019-12-18 CN CN201911308946.3A patent/CN110874937A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112925039A (en) * | 2021-01-22 | 2021-06-08 | 广东思理智能科技股份有限公司 | Sunlight interference resistant infrared goods position goods sensing method and system |
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