Geomagnetic sensor and Wifi-based parking space detection apparatus and method

Abstract

The invention discloses a geomagnetic sensor and Wifi-based parking space detection apparatus and method, and belongs to the technical field of parking space detection and wireless communication. The parking space detection apparatus comprises a power supply module for providing working voltage to a main controller, a geomagnetic parking space detection module and a wifi wireless communication module, the main controller used for controlling the working states of the geomagnetic parking space detection module and the wifi wireless communication module, the geomagnetic parking space detection module used for acquiring earth magnetic field signals, and the wifi wireless communication module used for sending parking space information. The parking space detection method comprises the steps of the geomagnetic parking space detection module acquiring the earth magnetic field signals of a parking space and sending the signals to the main controller, forming parking space occupation information after the main controller processing the acquired earth magnetic field signals, and the wifi wireless communication module controlled by the main controller sending parking space information based on the principles of sending information when change occurs. The parking space detection apparatus and method have the advantages of wifi wireless transmission, reliable communication, simple networking, high capacity expanding capability, and low execution and use cost.

Description

technical field [0001] The invention relates to the technical field of parking space detection and the field of wireless communication, in particular to a parking space detection device and a parking space detection method based on a geomagnetic sensor and Wi-Fi. Background technique [0002] With the sharp increase in the number of cars, parking spaces have become a scarce resource, and the problem of parking difficulties has become increasingly prominent. Intelligent parking lot management came into being, among which parking space detection is the most critical. The main parking space detection methods on the market include radio frequency, ultrasonic, eddy current, video, geomagnetic and other detection methods. Among them, the radio frequency detection method can only detect the number of parking lots in the parking lot, and cannot accurately detect the occupancy status of a certain parking space; the ultrasonic detection method is costly, and is easily affected by the...

AI Technical Summary

Problems solved by technology

Among them, the radio frequency detection method can only detect the number of parking lots in the parking lot, and cannot accurately detect the occupancy status of a certain parking space; the ultrasonic detection method is costly, and is easily affected by the environment with a high false detection rate; the eddy current detection method needs to lay detection coils, and the construction volume Larger; the video detection method requires a large number of cameras, which is costly and poor in versatility; the current geomagnetic detection method is mainly based on the strength of the magnetic field, and the detection accuracy is not high

Images