Automobile assistance driving system based on ultrasonic detection

A technology of automobile auxiliary and driving systems, which is applied in radio wave measurement systems, sound wave reradiation, and measurement devices, etc., can solve problems such as poor perception effects, safety accidents, and unstable assisted driving, so as to improve stability and improve Reliability, good perceived effect

Inactive Publication Date: 2019-04-12
电子科技大学成都学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the camera-based image acquisition technology and infrared thermal imaging technology have poor perception of the road surface and its surrounding environment, resulting in unstable assisted driving and even safety accidents. car assisted driving system

Method used

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  • Automobile assistance driving system based on ultrasonic detection
  • Automobile assistance driving system based on ultrasonic detection

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Embodiment 1

[0032] A car assisted driving system based on ultrasonic detection provided by a preferred embodiment of the present invention includes:

[0033] The ultrasonic acquisition module includes 16 ultrasonic transducers of the same frequency band arranged on the car body, uses the ultrasonic coding modulation method to sense the road surface and its surrounding environment, and sends the sensing data to the MCU control module. Wherein, the ultrasonic encoding and modulation method adopts Walsh function for encoding and modulation. After the car is started, multiple ultrasonic transducers start working simultaneously.

[0034] The parameter collection module is used to obtain the current driving speed and motor current of the vehicle, and send the obtained vehicle speed data and current data to the MCU control module.

[0035]The MCU control module determines the shape, orientation and relative distance between the obstacle and the car body based on the received perception data and...

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Abstract

The invention discloses an automobile assistance driving system based on ultrasonic detection, which relates to the technical field of automobile assistance driving. The system includes an ultrasonicacquisition module, a parameter acquisition module, and an MCU control module. The ultrasonic acquisition module perceives road surface and surrounding environment thereof by utilizing an ultrasonic coding modulation method, and sends perception data to the MCU control module; the parameter acquisition module is used for acquiring current driving speed and a motor current of an automobile, and sending obtained vehicle speed data and current data to the MCU control module; and the MCU control module determines a shape and orientation and relative distance between an obstacle and an automobile body based on the received perception data and the vehicle speed data, and analyzes whether a driver has a corresponding processing operation according to the current data, if not, the MCU control module turns on an assisted driving work mode and automatically assists in driving the automobile. The road surface and the surrounding environment thereof are perceived by the ultrasonic acquisition module, so that the reliability of the system, and the stability and reliability of assisted driving are improved, and a perception effect is good.

Description

technical field [0001] The invention relates to the technical field of automobile auxiliary driving, in particular to an automobile auxiliary driving system based on ultrasonic detection. Background technique [0002] With the development of society, people's living standards are gradually improving, and the use of cars is also increasing. As a means of transportation widely used by people, the range of vision when driving on the road has a very important impact on road safety. During the driving process of a car, it is necessary to use the accelerator and the brake together, especially when the road conditions are not good, the driver is required to be able to switch between the accelerator and the brake flexibly. If the driver's driving skills are not proficient or in a tired driving state, when the car encounters an obstacle, it is very easy for the driver to fail to pass the obstacle or deviate from the original driving route after passing the obstacle due to improper t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60Q9/00G01S15/93
CPCG01S15/931B60Q9/008
Inventor 史勤刚张佳芬李洋
Owner 电子科技大学成都学院
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