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Vehicle detection method and vehicle detection system

A technology for vehicle detection and detection results, applied in the field of vehicle detection and vehicle detection systems, can solve the problems of detection accuracy impact, radar inability to detect, etc., and achieve the effect of reducing charging disputes, efficient and stable detection, and accurate billing

Active Publication Date: 2020-11-03
杭州立方控股股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, radar waves are electromagnetic waves, which cannot penetrate water and other absorbing substances. When covered by water or objects with high water content, radar cannot detect;
[0008] Therefore, using a single sensor for detection will encounter constraints in different aspects, which will affect the detection accuracy

Method used

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  • Vehicle detection method and vehicle detection system
  • Vehicle detection method and vehicle detection system
  • Vehicle detection method and vehicle detection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Such as figure 1 As shown, the present embodiment provides a vehicle detection method, the method includes the following steps:

[0061] Debugging of the ground sensor, geomagnetic sensor and radar sensor, including: recording the initial detection value of the ground sensor, the initial detection value of the geomagnetic sensor and the initial detection value of the radar sensor before installation, and completing the ground sensor, geomagnetic sensor and radar sensor After the installation of the ground sensor, the geomagnetic sensor and the radar sensor to be debugged are detected after the installation; Consistent with the initial detection value.

[0062] After the installation and debugging are completed, the ground sensor detects the inductance change of the ground coil, and the main control module judges whether there is a vehicle passing by according to the inductance change of the ground coil. If so, the main control module wakes up the geomagnetic sensor an...

Embodiment 2

[0085] Such as image 3 As shown, this embodiment provides a vehicle detection system, which is used to implement the vehicle detection method described in Embodiment 1, including:

[0086] The ground sense sensor 2 is used to detect the inductance change of the inductance coil;

[0087] Geomagnetic sensor 3, in order to detect the geomagnetic value of installation position;

[0088] Radar sensor 4, in the present embodiment, radar sensor 4 is 24G and / or 77G radar, and adopts FMCW modulation mode, in order to transmit radar wave to installation position and receive the radar wave that reflects back;

[0089] The main control module 1 is used to receive and wake up the geomagnetic sensor 3 and the radar sensor 4 according to the electric quantity change of the inductance coil, receive and calculate the detection result of the geomagnetic sensor and the detection result of the radar sensor, and calculate the final result according to the detection result of the geomagnetic sens...

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Abstract

The invention, which relates to the technical field of traffic equipment, discloses a vehicle detection method and a vehicle detection system. A geomagnetic sensor and a radar sensor are awaken by ground induction variations; detection results of the geomagnetic sensor and the radar sensor are calculated; and a final detection result is calculated by integrating the detection results of the geomagnetic sensor and the radar sensor. According to the vehicle detection method disclosed by the invention, with various sensors, restrictions in different aspects are eliminated and thus the high detection accuracy is ensured.

Description

technical field [0001] The invention relates to the technical field of traffic equipment, in particular to a vehicle detection method and a vehicle detection system. Background technique [0002] Nowadays, vehicle detection is widely used in various occasions that need to judge whether there are vehicles parked, such as fixed parking space timing, traffic flow judgment at intersections, etc. Common detection methods in the prior art include ultrasonic detection, geomagnetic detection, infrared detection, ground sensing detection, and radar detection. But common detection method in the prior art has following drawback: [0003] Ultrasonic requires very clean transmitting surface. Dirt will affect the test results and cause misjudgment. When used outdoors, dust, leaves, water stains, etc. will affect the accuracy; [0004] The detection of ferromagnetism by geomagnetism has no directionality, and it is impossible to distinguish the relative position between the object and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/02G08G1/042H04W4/38H04W4/40H04W4/80
CPCG08G1/02G08G1/042H04W4/38H04W4/40H04W4/80
Inventor 施广明陈震宇金刘斌
Owner 杭州立方控股股份有限公司
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