Parking space state detection device and parking space state detection method
A parking space status and detection equipment technology, applied in the field of vehicle detectors, can solve the problems of poor accuracy of detection results, slow changes in the magnetic field of parking spaces, false detection, etc.
Pending Publication Date: 2017-09-08
迈锐数据(北京)有限公司
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In this case, the magnetic field near the parking space will often drift due to the external environment, so that the magnetoresistive sensor can detect the change of the magnetic field and cause false detection.
[0004] Moreover, when the vehicle is parked in the parking space or the vehicle leaves the parking space, the speed of the car is often slow, so the magnetic field changes near the parking space are correspondingly slow
Therefore, using the magnetoresistive sensor to detect the state of the parking space is not suitable for the application scenario of the parking lot or on-street parking, resulting in poor accuracy of the detection result of the state of the parking space
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[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making...
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The invention provides a parking space state detection device and a parking space state detection method. The parking space state detection device comprises a geomagnetic sensor and a microwave detection device which are arranged in a parking space to be detected and mutually connected, wherein the geomagnetic sensor is used for generating a driving signal when parameters of a geomagnetic force in a region of the parking space to be detected are detected to be changed and sending the driving signal to the microwave detection device; and the microwave detection device is used for receiving the driving signal, transmitting microwave signals of at least one frequency band according to the driving signal, receiving returned echo data, and determining parking space state change conditions of the parking space to be detected and a changed parking space state of the parking space to be detected according to the echo data, reference echo data corresponding to a parking space state of the parking space to be detected and a set sparking space state change threshold. The parking space state detection device is not susceptible to influences of magnetic field variations nearby the parking space, variations in vehicle moving speed and the external environment, and the accuracy of a detection result is improved. Meanwhile, the whole detection device is ensured to be low in power consumption, and the cost is saved.
Description
technical field [0001] The invention relates to the technical field of vehicle detectors, in particular, to a detection device and a detection method for the state of a parking space. Background technique [0002] With the improvement of people's living standards and the rapid growth of the number of cars, in order to meet the user's travel needs, the parking space status detection technology can quickly detect the vacant parking space to meet the needs of users for fast parking. [0003] The parking space state detection method in the related art mainly uses a magnetoresistive sensor to detect changes in the magnetic field around the parking space. However, for the above-mentioned magnetoresistive sensor, whether it is a parking space on the roadside or a parking space in a parking lot, the occupancy of the parking space will not change frequently. Parking spaces are sometimes continuously occupied and sometimes vacant. In this case, the magnetic field near the parking sp...
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IPC IPC(8): G08G1/042G08G1/01G08G1/14
CPCG08G1/01G08G1/042G08G1/145
Inventor 刘向东李坡
Owner 迈锐数据(北京)有限公司
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