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Detecting method and device for parking car tracking positioning

A positioning detection device and positioning detection technology, which are applied in the field of vehicle detection and management, can solve the problems of difficult judgment of vehicle passing or presence, misjudgment of vehicle passing or presence, and difficulty of distinguishing magnetic field interference from adjacent parking spaces, etc., so as to improve reliability sexual effect

Active Publication Date: 2013-05-15
BEIJING LOIT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different sizes and directions of the parking spaces of vehicles, it is difficult for a single sensor to judge the passing or presence of vehicles, and it is difficult to distinguish the magnetic field interference of adjacent parking spaces, resulting in misjudgment of the passing or presence of vehicles

Method used

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  • Detecting method and device for parking car tracking positioning
  • Detecting method and device for parking car tracking positioning
  • Detecting method and device for parking car tracking positioning

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0033] This embodiment provides a tracking and positioning detection method for a parking lot, and the method includes the following operations.

[0034] The vehicle tracking and positioning detection device in the parking lot regularly detects the geomagnetic value of the parking space according to the set geomagnetic detection cycle, and subtracts the recorded average value of no vehicles from the geomagnetic value detected at regular intervals. If the minimum change parameter is used, it is determined that there is no car in the parking space at this time. When the difference is greater than the set minimum change parameter of the car, it is determined that there is a car in the parking space at this time. The geomagnetic value detected at this time and the judgment result of the car presence and the ID of the device are sent out.

[0035] Among them, the vehicle tracking and positioning detection device in the parking lot sends the detected geomagnetic value, the vehicle p...

Embodiment 2

[0041] This embodiment provides a vehicle tracking and positioning detection device in a parking lot, which at least includes a geomagnetic sensor unit, a central processing unit, and a communication unit.

[0042] Among them, the geomagnetic sensor unit regularly detects the geomagnetic value of the parking space according to the set geomagnetic detection cycle;

[0043] Preferably, the geomagnetic sensor unit is composed of a single-axis and a dual-axis magnetic sensor, wherein the single-axis magnetic sensor faces upward, the dual-axis magnetic sensor intersects the single axis by 45 degrees, and the three axes are in the same plane.

[0044] The central processing unit subtracts the recorded average value of no car from the geomagnetic value detected at regular intervals, and when the difference is less than the set minimum variation parameter of car presence, it is determined that there is no car on the parking space at this time; when the difference is greater than the se...

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Abstract

The invention discloses a detecting method and a detecting device for parking car tracking positioning, and relates to the fields of field bus technology, wireless sensor network technology and car detection. The detecting method includes that the detecting device for the parking car tracking positioning detects a geomagnetism value of a parking lot at fixed time according to a set geomagnetism detection period, and uses the detected geomagnetism value to substract a car-free average value. When difference is smaller than a set car-occupied minimum varying parameter, that no car is parking in the parking lot is confirmed. When the difference is greater than the set car-occupied minimum varying parameter, that a car is parking in the parking lot is confirmed, and the detected geomagnetism value, a car-occupied judging result and identity (ID) of the device are sent out. The invention further discloses the detecting device for parking car tracking positioning. According to the technical scheme of the detecting method and the detecting device for the parking car tracking positioning, the reliability of car position detection and the reliability of car passing direction detection are improved.

Description

technical field [0001] The invention relates to field bus technology, wireless sensor network technology, information dissemination technology, embedded software and hardware technology, vehicle detection and management fields, in particular to a vehicle tracking and positioning detection scheme. Background technique [0002] The current traffic problem has become a common problem in big cities. The rapid growth of car ownership has made travel and parking problems increasingly severe. Parking difficulties and low efficiency have seriously affected people's travel quality. Vehicle management systems in parking lots are facing increasingly severe challenges. [0003] The current parking lot management system on the market can only manage the entry and exit of vehicles, but cannot effectively manage vehicles, and there are many deficiencies. Part of the parking lot management system is equipped with a license plate image recognition system at the entrance and exit, which can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/14
Inventor 魏剑平樊勇黄孝斌李宇宏
Owner BEIJING LOIT TECH