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A geomagnetic parking space detection optimization method

A technology of parking space detection and optimization method, which is applied in directions such as traffic control systems and instruments for indicating various open spaces in parking lots, road vehicles, etc., can solve problems such as low detection accuracy, improve accuracy, save costs, and avoid detection rates. reduced effect

Active Publication Date: 2020-05-26
ZHEJIANG UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problem that the traditional geomagnetic detection algorithm detects the same vehicle on the parking space for a long time parking, the detection accuracy is low, the present invention provides a geomagnetic parking space detection optimization method that can improve the detection accuracy under long-term parking

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  • A geomagnetic parking space detection optimization method
  • A geomagnetic parking space detection optimization method
  • A geomagnetic parking space detection optimization method

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Embodiment Construction

[0025] In order to illustrate the technical characteristics of the present invention, the specific implementation steps of the present invention will be further described below in conjunction with the accompanying drawings. The specific implementation cases described here are only used to explain the present invention, not to limit the present invention.

[0026] For this case, its geomagnetic parking space optimization method includes the following steps, as attached image 3 Shown:

[0027] 1) Collect the geomagnetic data of the current parking space through the geomagnetic detection equipment.

[0028] 2) On the basis of step 1), the geomagnetic data obtained is filtered by moving average filtering, and the description of the sliding filter is as shown in formula (1):

[0029]

[0030] In the formula, x(t) is the signal collected by the sensor; x s (t) is the signal after moving average filtering; N is the window length of moving average filtering.

[0031] 3) On the...

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Abstract

A geomagnetic parking space detection optimization method includes steps of: acquiring geomagnetism data of a current parking space by a geomagnetic detection device; filtering the obtained geomagnetism data by a moving average filter; obtaining a baseline value of the current parking space by a baseline tracking method to adapt to a constantly changing baseline value; using a RBF neural network to predict the baseline and compensating multiplication of the predicted value and the weight to the previous baseline value to obtain a more realistic baseline value; and using a multi-state machine detection algorithm to determine whether there is a vehicle. This method avoids the disadvantage of using the baseline tracking amount method to obtain the baseline value directly, and can obtain a more accurate baseline value to improve the accuracy of the geomagnetic parking space detection.

Description

technical field [0001] The invention relates to a method for detecting and optimizing geomagnetic parking spaces. [0002] technical background [0003] With the rapid development of my country's economy, the number of cars continues to grow rapidly, but the growth of parking spaces is far behind the growth of vehicles, and the ensuing parking problem is becoming more and more serious. However, the construction of parking lots requires suitable sites and long-term planning, and it is difficult to solve the parking problem by rapidly increasing the number of parking lots in a short period of time. Therefore, it is particularly important to establish a sound and good parking system to improve the effective utilization of parking spaces, and the stability, accuracy and real-time performance of detector detection play an extremely critical role in the entire system. At present, the common vehicle detectors include induction coils, ultrasonic waves, infrared, microwave, video, et...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/14G06N3/04
CPCG06N3/04G08G1/145
Inventor 郭海锋顾夫挺黄纪勇王奇刘玉新杨宪赞
Owner ZHEJIANG UNIV OF TECH
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