A parking space detection method and a parking space detection system

Abstract

An embodiment of the invention discloses a parking space detection method and a parking space detection system. The parking space detection method includes detecting whether geomagnetic fields on parking spaces are changed or not, if yes, starting a re-detection mechanism to detect the parking spaces, wherein the re-detection mechanism comprises at least one of ultrasonic waves and radio frequency recognition, and determining parking conditions on the parking spaces according to detection results of the re-detection mechanism. By the parking space detection method and the parking space detection system, mistaken judgments on the parking conditions of the parking spaces caused by geomagnetic detection can be effectively avoided and accuracy rate of parking space detection can be improved.

Description

technical field [0001] The invention relates to the field of parking space detection, in particular to a parking space detection method and a parking space detection system. Background technique [0002] With the development of the economy and the improvement of people's living standards, automobiles have become the main means of transportation for people to travel, and the number of private cars is constantly increasing. However, due to the high population density of the city, the problem of difficult parking has become increasingly prominent. [0003] At present, geomagnetic sensors are mostly used to detect ground parking spaces. The geomagnetic sensor mainly uses the principle that the vehicle will cause the change of the earth's magnetic field to realize the detection of the vehicle. It generally judges whether there are wheels parked according to the geomagnetic change in a certain direction. [0004] However, since there are many devices that cause geomagnetic chang...

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Problems solved by technology

[0004] However, since there are many devices that cause geomagnetic changes, and the vehicle is only one of them, even if the geomagnetic sensor detects a change in the earth's magnetic field, the change may not be caused by the wheels stopping, for example, a magnetic field caused by a magnet. It is much more than the magnetic field change caused by a car. In addition, it may be caused by a relatively large metal object such as an iron bucket or oil tank placed next to the parking space.

It can be seen that the scheme of using geomagnetic sensors to detect ground parking spaces is not absolutely effective

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