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Full-audio-frequency sensing system for intelligent driving vehicle and intelligent control method thereof

A technology of intelligent driving and perception system, which is applied in the field of full audio perception system and intelligent control of intelligent driving vehicles, which can solve the problems of activity safety restrictions, the inability to predict the changing trend of the surrounding environment, and the inability to obtain environmental information, etc., to achieve the elimination of safety problems. Hidden dangers, the effect of improving the ability to obtain information

Active Publication Date: 2018-12-21
HUNAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology only has spatial position information but no sound information. The intelligent (unmanned) driving system is similar to human beings who only have vision but no hearing. Judging the changing trend of the surrounding environment, the safety of its activities must be limited, and especially in some blind spots, it is impossible to obtain all environmental information

Method used

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  • Full-audio-frequency sensing system for intelligent driving vehicle and intelligent control method thereof
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  • Full-audio-frequency sensing system for intelligent driving vehicle and intelligent control method thereof

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Embodiment 1

[0057] Such as figure 1 As shown, the present embodiment provides a full audio perception system for an intelligent driving vehicle, hereinafter referred to as a full audio perception system, including a sound sensor, an ultrasonic echo sensor, an acoustic-electric converter, a loudspeaker, an ultrasonic generator, an electroacoustic generator, a full Audio feature recognition and classifier and full audio data fusion and decision maker.

[0058] The sound sensor is used to collect all the sound wave signals that the human ear can feel in the space; the ultrasonic echo sensor is used to collect the specific ultrasonic signal reflected by the object, and analyze the ultrasonic signal of the vehicle identity information it carries; the sound sensor and the ultrasonic The echo sensors are respectively connected with the acoustic-electric transducers.

[0059] The acoustic-electric converter converts the sound signal generated by the sound sensor and the ultrasonic signal generat...

Embodiment 2

[0090] Such as figure 2As shown, the difference between this embodiment and Embodiment 1 is that there are m acoustic sensors, m ultrasonic echo sensors, m loudspeakers, and m ultrasonic generators; correspondingly, the acoustic The electric converter is provided with multi-channel input and output, and the electroacoustic generator is provided with multi-channel input and output, wherein m is an integer greater than 2.

[0091] It should be noted that in this embodiment, there are multiple sound sensors, ultrasonic echo sensors, loudspeakers, and ultrasonic generators, and the numbers are the same. quantity.

[0092] In this embodiment, increasing the number of sensors can improve the confidence of the data. like Figure 6 As shown, for example, the data obtained by sound sensor 1, sound sensor 2, and sound sensor m at different times are A1 1 、A1 2 、A1 m , A2 1 、A2 2 、A2 m ,An 1 、An 2 、An m , the data obtained by ultrasonic echo sensor 1, ultrasonic echo sensor ...

Embodiment 3

[0095] like image 3 As shown, this embodiment provides an intelligent driving vehicle control system, including the full audio perception system in Embodiment 2, and also includes other sensing systems, specifically connected to the central data processing and control unit of the intelligent driving vehicle GIS-T geographic transportation system, machine vision system, laser radar system, millimeter wave radar system, and vehicle operation feedback unit, the vehicle operation feedback unit is connected with each executive controller, detects the actual working state of the executive controller, and Status information is fed back to the central data processing and control unit.

[0096] The full audio perception system of the intelligent driving vehicle is connected with the central data processing and control unit of the vehicle to realize information interaction between the two parties; the full audio perception system sends vehicle control information to the central data pr...

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Abstract

The invention relates to the field of intelligent driving technology and discloses a full-audio-frequency sensing system for an intelligent driving vehicle and an intelligent control method thereof. The system is composed of a sound sensor, an ultrasonic echo sensor, an acoustic-electrical converter, a loudspeaker, an ultrasonic generator, an electroacoustic generator, a full-audio-frequency feature recognition and classifier, and a full-audio-frequency data fusion and decision making device. The acoustic-electrical converter is connected with the sound sensor and the ultrasonic echo sensor; the full-audio-frequency feature recognition and classifier is connected with the acoustic-electrical converter; the full-audio-frequency data fusion and decision making device is connected with the full-audio-frequency feature recognition and classifier; the loudspeaker and the ultrasonic generator are connected with the acoustic-electrical converter. Therefore, a defect that the conventional vehicle intelligent driving sensing system cannot hear and understand traveling intentions from other vehicles or pedestrians is overcome; and the system is able to sense and identify a target in a visualblind zone with obstacle obscuration.

Description

technical field [0001] The present invention relates to the technical field of intelligent driving, and more specifically, relates to a full audio perception system for an intelligent driving vehicle and an intelligent control method thereof. Background technique [0002] The perception system of the traditional unmanned driving system mainly relies on millimeter-wave radar, lidar, camera and other devices, which can be considered as a vision system. , forming various automatic or autonomous control methods. [0003] For example, the invention patent application with publication number CN106527427A discloses a highway-based automatic driving perception system, and the vehicle driving environment adopts a complete vision system. Based on this method, although the space-vehicle coupling relationship is established, for real simulated human driving, only visual information does not constitute all driving logic relationships, and auditory information is also an important basis ...

Claims

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Application Information

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IPC IPC(8): G01S15/93G01S7/539
CPCG01S7/539G01S15/931
Inventor 李涛张昌凡冯江华龙永红何静赵凯辉刘建华
Owner HUNAN UNIV OF TECH
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