Three-mode geomagnetic detection system and method thereof

Abstract

The invention discloses a three-mode geomagnetic detection system and a method thereof. The system comprises a cloud server used for storing parking space state information, a power supply module usedfor supplying power to the system, a radar sensor used for measuring the distance between a parking space and a vehicle, a photosensitive sensor used for detecting the illuminance change of the parking space, a magnetoresistive sensor used for determining the parking space state by detecting the magnetic field intensity change of the area where the parking space is located, a processor used for controlling the radar sensor, the photosensitive sensor and the magnetoresistive sensor, and a communication module used for sending the parking space state to the cloud server. The power supply moduleis connected with the processor and the communication module, the processor is connected with the radar sensor, the magnetoresistive sensor and the communication module, and the communication moduleis connected with the cloud server. Parking space state change information can be monitored in real time through the photosensitive sensor and the magnetoresistive sensor, secondary precise confirmation is realized through the radar sensor, and the detection accuracy of the parking space state is ensured.

Description

technical field [0001] The invention relates to the field of parking space detection, in particular to a three-mode geomagnetic detection system and a method thereof. Background technique [0002] At present, the parking space detection device in the parking lot generally adopts the traditional geomagnetic detection method or a combination of infrared and pyroelectric methods. The method of geomagnetic detection belongs to the indirect measurement of the disturbance of the vehicle to the geomagnetic field. Its advantage is low power consumption. However, due to the inconsistency of the disturbance of the vehicle to the geomagnetic field, it cannot be well judged whether there is a vehicle parked in the parking space. Factors such as the iron content of the vehicle and the age of the vehicle will cause inconsistencies in the values ​​measured at the same location for the same type of vehicle. At the same time, the geomagnetic detection method also involves the environmental ...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the inability of existing parking space detectors to balance power consumption and detection accuracy, and to provide a three-way sensor that can improve the accuracy of parking space detection by setting three sensors, and can effectively limit power consumption to meet long-term use. Modular geomagnetic detection system and method

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