Driver sound localization system and method for automobile

A sound source localization and driver technology, applied in positioning, radio wave measurement systems, measuring devices, etc., can solve the problems of inability to realize real-time, fast and accurate driver positioning, and achieve high positioning accuracy and real-time performance. low cost effect

Active Publication Date: 2012-12-12
HONG KONG PRODUCTIVITY COUNCIL
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Problems solved by technology

Therefore, it is impossible to realize real-time, fast and accurate driver positioning

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  • Driver sound localization system and method for automobile
  • Driver sound localization system and method for automobile
  • Driver sound localization system and method for automobile

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[0029] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.

[0030] In order to thoroughly understand the present invention, detailed steps and structures will be presented in the following description, so as to explain how the present invention solves the problem in the prior art that traditional microphone arrays cannot be used for in-vehicle sound source localization. It is evident that the practice of the invention is not limited to specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below, however, the present invention may have other embodime...

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Abstract

The invention relates to a driver sound localization system and method for an automobile. The system comprises a first sound collecting device, a second sound collecting device and a control system, wherein the first sound collecting device and the second sound collecting device are used for collecting a first sound signal and a second sound signal; the control system is used for respectively processing the first sound signal and the second sound signal so as to output driver locating information; and the control system further comprises a noise reduction device, a filtering device, a sound activation detecting device, a long frame framing device, an envelope calculating device and an energy ratio calculating device and used for calculating the envelope energy ratio of the first and second sound signals according to the calculation results of the envelope calculating device and the long frame framing device. The driver sound localization system and method for the automobile have the advantages of relatively low cost and high locating accuracy and real-time performance.

Description

technical field [0001] The invention relates to the field of automobile electronics, in particular to a sound source localization system and method used in automobiles. Background technique [0002] With the development of technology, more and more devices and applications have been gradually equipped in cars, such as navigation systems, audio-visual playback systems, and so on. However, if the driver needs to use these devices during driving, he has to temporarily leave the steering wheel for manipulation, which brings potential danger and inconvenience to the driver. In order to reduce the potential danger that the driver needs to control all the control interfaces with his hands and leave the steering wheel during driving, the voice control system has become the focus of research and development of many automotive electronic systems in recent years. The purpose of the voice control system is to allow the driver or the user to speak in a relaxed and natural way, through t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/18G10L11/00
Inventor 冯雁黄石磊李恬
Owner HONG KONG PRODUCTIVITY COUNCIL
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