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Automatic parking method based on fuzziness and deep reinforcement learning

A technology of automatic parking and reinforcement learning, applied in neural learning methods, biological neural network models, special data processing applications, etc., can solve problems such as sensor misidentification, complex environment, and inability to apply to various parking environments

Active Publication Date: 2019-12-03
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The semi-automatic parking system uses the camera to collect image data and the ultrasonic radar to detect the distance data of the surrounding objects from the vehicle body, and reminds the driver to park through the data of the sensor, but completes the parking according to the subjective factors of the driver; the automatic parking system adopts the traditional The method of trajectory planning usually includes two-stage or three-stage parking. There are reasons such as sensor misidentification, complex environment, and trajectory error, which cannot be applied to various parking environments.

Method used

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  • Automatic parking method based on fuzziness and deep reinforcement learning
  • Automatic parking method based on fuzziness and deep reinforcement learning
  • Automatic parking method based on fuzziness and deep reinforcement learning

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Embodiment Construction

[0066] In this embodiment, an automatic parking method based on fuzzy deep reinforcement learning includes the following steps;

[0067] Step 1: Establish the vehicle dynamics model and the parking environment model, and use the earth coordinate system as the reference coordinate system to define the parking start position and parking position, such as figure 1 shown;

[0068] Step 2: Collect the parking data based on the driver’s experience in the real scene as the original data. The parking data is the status information of the vehicle and the vehicle control command; the vehicle status information includes the coordinates and heading angle of the vehicle in the earth coordinate system; the vehicle control Commands include the speed of the vehicle and the steering angle of the steering wheel;

[0069] Step 3: Define the vehicle control instruction set a={a 0 ,a 1 ,...,a t ,...,a m}, a 0 Represents the control command at the initial moment of the vehicle, a t Represent...

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Abstract

The invention discloses an automatic parking method based on fuzziness and deep reinforcement learning. The method comprises the following steps of 1, constructing a fuzzy action network, and outputting a control instruction to establish a sample pool set; 2, building a fuzzy evaluation network for training the fuzzy action network; 3, training networks through taking samples [ st, at, Rt and st+1] at the t moment in a sample pool set as input; and 4, assigning a value of t+1 to t to return to the step 3 to continue learning until t is larger than C. According to the automatic parking method,the automatic parking can be completed through a control method of combining a fuzzy neural network and the deep reinforcement learning, so that the automatic parking process is safer and more reliable, and the occurrence of parking accidents is reduced.

Description

technical field [0001] The invention relates to the technical field of automatic parking planning for smart cars, in particular to an automatic parking method based on fuzzy deep reinforcement learning. Background technique [0002] With the continuous increase of the number of motor vehicles, the parking space becomes crowded, and the crowded parking space will bring safety, economy, environment, health and other problems to the city, and the parking problem has become an inevitable problem. At the same time, due to the crowded parking environment and the technical level of drivers, parking accidents occur frequently. With the development of parking technology, car companies have introduced semi-automatic parking systems and fully automatic parking systems. The semi-automatic parking system uses the camera to collect image data and the ultrasonic radar to detect the distance data of the surrounding objects from the vehicle body, and reminds the driver to park through the d...

Claims

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Application Information

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IPC IPC(8): B60W30/06B60W50/00G06F17/50G06N3/08
CPCB60W30/06B60W50/00B60W2050/0002B60W2050/0028B60W2050/0031G06N3/08
Inventor 黄鹤张润张炳力郭伟锋沈干于海涛姜平
Owner HEFEI UNIV OF TECH
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