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A parking state monitoring method and device based on engine-to-geomagnetic disturbance detection

A technology of geomagnetic disturbance and parking status, which is applied to indicate the direction of each open space in the parking lot, the traffic control system of road vehicles, instruments, etc., and can solve the problems of easy interference with geomagnetic sensors, large influence of geomagnetic field, and wrong judgments

Active Publication Date: 2018-03-23
SOYEA TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After testing, it was found that the start-up process of the side car has a great influence on the geomagnetic field, and it is easy to interfere with the value of the geomagnetic sensor and cause judgment errors

Method used

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  • A parking state monitoring method and device based on engine-to-geomagnetic disturbance detection
  • A parking state monitoring method and device based on engine-to-geomagnetic disturbance detection
  • A parking state monitoring method and device based on engine-to-geomagnetic disturbance detection

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with accompanying drawing.

[0036] A timing synchronization method in a high-speed mobile environment, the method is based on the detection of geomagnetic disturbances by the engine, and is used to improve the correct probability of parking state detection in complex environments. The method specifically includes the following steps:

[0037] Step (1). The system is initialized, and the background magnetic field is self-learned in the state of no vehicle. That is, measure and average the geomagnetic data values ​​in the current environment to obtain the background magnetic field value (x 0 the y 0 z 0 ), which can be expressed as:

[0038]

[0039] Where (x, y, z) is the measured geomagnetic data, N 1 The number of sampling points used for averaging may be 10-100.

[0040] Step (2). Calculate the derivative of the measured geomagnetic data. It can be expressed as:

[0041]

[0042] wher...

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Abstract

The invention belongs to the technical field of information process of intelligent traffic sensors, and specifically relates to a parking condition monitoring method and an apparatus based on geomagnetic disturbance detection by an engine. According to the method, mode recognition of the driving state of a vehicle in a parking space is performed by employing strong disturbance for a geomagnetic field during the starting of the vehicle engine, and the influence on the state detection result of the parking space due to the starting of an engine of a vehicle nearby is reduced.

Description

technical field [0001] The invention belongs to the technical field of information processing of sensors in intelligent traffic. In particular, it relates to a parking state monitoring method and device based on the engine's detection of geomagnetic disturbances. Background technique [0002] With the rapid growth of my country's economy, the number of cars is also increasing rapidly, especially in cities, the number of cars has increased sharply, resulting in a shortage of parking spaces and the problem of parking difficulties has become increasingly prominent. The problem of vehicle parking has become an important factor affecting urban traffic. The main problems are as follows: nowhere to park, illegal occupation of roads, unattended, public security management, etc. And these problems are often ignored, leaving the city in chaos. [0003] At present, many parking lots or parking spaces are still in the manual management stage. Manually check the parking spaces, manuall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/14G08G1/042
CPCG08G1/042G08G1/14
Inventor 金昊炫曾嵘郑小平施浏晟高歌
Owner SOYEA TECH