Wireless parking space detection method and parking space detector

Abstract

The invention discloses a wireless parking space detection method and a parking space detector. The wireless parking space detection method comprises the steps that a geomagnetic detection module detects a parking space magnetic field variation and wakes up an MCU through interrupting a pin when the parking space state is judged to be changed; the MCU controls an electronic switch, which is used for being connected with a battery module, to be closed, the battery module supplies power to a temperature detection module and a power detection module; the MCU acquires temperature information fromthe temperature detection module and acquires power information from the power detection module; the MCU controls a wireless LoRa module to send out the parking state information judged due to the parking space magnetic field variation, the temperature information and the power information; and the LoRa module enters a SLEEP state after sending the information data, the electronic switch is disconnected, the battery modules stops supplying power to the temperature detection module and the power detection module, and the MCU enters a low-power-consumption sleep mode. The wireless parking spacedetection method and the parking space detector achieve a requirement of low-power-consumption operation according to the mode.

Description

【Technical field】 [0001] The invention relates to the technical field of intelligent parking, in particular to a wireless parking space detection method and a parking space detector. 【Background technique】 [0002] With the rapid development of cities, living standards continue to improve, and the number of vehicles continues to increase, parking resources are facing severe challenges, resulting in traffic congestion, traffic accidents, traffic security, parking difficulties, illegal parking, parking disputes, etc. getting worse. [0003] In order to better solve the problem of urban vehicle parking, it is necessary to realize the networking of parking spaces and make full use of parking resources, which requires higher and higher performance requirements for parking space detectors. Currently used parking space detection devices include video cameras, ground sensing coil detectors, ultrasonic parking space detectors, wireless geomagnetic parking space detectors, etc. The ...

AI Technical Summary

Problems solved by technology

The video camera method is expensive, interfered by bad weather such as rain and snow, and cannot realize the networking of a single parking space and apply it to on-street parking

The installation of the ground sense coil detector is cumbersome, the detection accuracy is poor, and it is susceptible to interference

The ultrasonic parking space detector consumes a lot of power and can only use wired power supply, which is not suitable for outdoor parking spaces

[0004] Wireless geomagnetic parking space detector is currently a relatively mature solution, but generally wireless geomagnetic parking space detectors often use short-distance wireless communication technologies such as WiFi, Bluetooth, Zigbee, 315 / 433, etc., requiring a large number of repeaters to achieve networking and large-scale coverage, the power consumption of the parking space detector is relatively high, and the maintenance cost is high

Moreover, the parking space detector has limitations on the downlink data rate and real-time performance, which makes it impossible to achieve fast firmware upgrades and downlink control magnetic field corrections, and can only perform firmware upgrades and traditional magnetic field corrections after opening the cover

In addition, parking space detectors from different manufacturers are not convenient for unified management and maintenance, which limits the large-scale use of geomagnetic parking space detectors in urban traffic construction

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