A parking space detection device and method for an automatic parking system
A technology of automatic parking and detection method, which is applied in vehicle parts, transportation and packaging, circuits or fluid pipelines, etc., to achieve the effect of low development cost, simple structure, and accurate library search.
Active Publication Date: 2016-11-30
江苏中虎汽车智能系统有限公司
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[0003] At present, the existing technologies for finding parking spaces are mainly ultrasonic sensors, cameras, infrared sensors, etc., but they are all affected by factors such as the temperature, humidity, and installation conditions of the surrounding environment, so that they can only be used in specific environments.
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[0021] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples.
[0022] figure 1 It is a flow chart of the parking space detection method of the automatic parking system of the present invention, and the method steps are as follows:
[0023] 1) The driver turns on the turn signal corresponding to the side of the target parking space according to whether the target parking space is on the left or right side of the vehicle;
[0024] 2) Start the automatic parking system, and the parking space detection device activates the three sound pressure sensors on the side of the corresponding parking space according to the direction of the turn signal;
[0025] 3) The three sound pressure sensors receive the sound pressure signals returned after the engine noise and exhaust noise are blocked, and temporarily store the obtained sound pressure signal data in the buffer;
[0026] 4) The data processing unit processes...
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The invention relates to a parking space detecting device and method for an automatic parking system. The parking space detecting device comprises a sensor unit, a data processing unit, a buffer, a decision making unit and a correction unit. According to the parking space detecting device and method, a sound pressure sensor is used for detecting parking spaces, sound signals fed back after engine noise and exhaust pipe noise received by the sound pressure sensor are blocked are processed by the data processing unit in real time, longitudinal distance of a target parking space is calculated, whether a vehicle is parked on the parking space or not and whether the longitudinal distance of the parking space meets a requirement or not are judged through the decision making unit and the correction unit, and finally the purpose of automatic parking is achieved. The device and method have the advantage that parking space detection accuracy is further improved through echo detection.
Description
technical field [0001] The invention relates to the technical field of automobile automatic parking, in particular to a parking space detection device and method for an automatic parking system. Background technique [0002] The automatic parking system generally includes the following modules: parking space detection module, path planning module, error compensation module, execution module and danger warning module. The parking space detection module is the basic module of the automatic parking system. In the process of automatic parking, whether the accurate detection of the parking space can be realized directly affects whether the parking process can be carried out smoothly. [0003] At present, the existing technologies for finding parking spaces are mainly ultrasonic sensors, cameras, infrared sensors, etc., but they are all affected by factors such as the temperature, humidity, and installation conditions of the surrounding environment, so that they can only be used i...
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IPC IPC(8): B60R16/02
CPCB60R16/02
Inventor 沈峥楠江浩斌江昕炜马世典朱畏畏
Owner 江苏中虎汽车智能系统有限公司