Self-adaptive parking space detection method based on ZigBee technology

Abstract

The invention relates to a self-adaptive parking space detection method based on a ZigBee technology. The method comprises the following steps of: firstly constructing a ZigBee wireless network through a coordination point, a route node and a terminal node; dividing the network into a plurality of areas according to the route node; dividing the terminal node into an environmental reference node and a common node; setting the environmental reference node on a non-parking space; setting the common node on a parking space; collecting light intensity values by a light intensity sensor connected with the terminal node; transmitting the light intensity values to the coordination point through the terminal node and the route node in sequence; judging the current environment by the coordination point according to the light intensity values of the environmental reference node and the common node; and comparing the relation between the light intensity values of the environmental reference node and the common node as well as threshold values of the current environment, and detecting whether the parking space is free. Compared with the prior art, the self-adaptive parking space detection method based on the ZigBee technology has the advantages of being strong in adaptivity and high in reliability.

Description

technical field [0001] The invention relates to a parking space detection method in a parking lot, in particular to an adaptive parking space detection method based on ZigBee technology. Background technique [0002] After China entered the automobile era, large parking lots appeared one after another, and the demand for finely induced parking spaces in the parking lot became increasingly obvious. In recent years, many parking lot monitoring systems have appeared. The parking space monitoring system is mainly composed of a parking space detection system and a free parking space query system. Inside the parking space detection system, the sensor equipment collects information related to the state of the parking space, and then sends the information to the central controller of the parking lot. [0003] From the point of view of the information transmission medium in the parking space detection system, the parking space detection system in the parking lot has gone through two...

AI Technical Summary

Problems solved by technology

The common disadvantage of them is poor adaptive ability. Due to the simplification of the threshold, when the environment of the system changes, it may misjudge whether the parking space is occupied; the reliability is low, when the environment temperature, humidity, electromagnetic radiation Mutations such as mutations may lead to a large number of false positives and false positives in the system

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