DTW (dynamic time warping) voice recognition-based truck examining method

A technology for speech recognition and inspection methods, which is applied in speech recognition, speech analysis, instruments, etc., and can solve problems such as expensive and complex systems

Inactive Publication Date: 2011-08-17
INST OF ELECTRONICS & INFORMATION ENG IN +1
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  • DTW (dynamic time warping) voice recognition-based truck examining method
  • DTW (dynamic time warping) voice recognition-based truck examining method
  • DTW (dynamic time warping) voice recognition-based truck examining method

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[0028] The technical solution of the present invention will be described below in conjunction with the accompanying drawings.

[0029] DTW is dynamic time programming, which is an earlier pattern matching and model training technology. It applies the idea of ​​dynamic programming to successfully solve the problem of unequal time length when comparing speech signal feature parameter sequences. It is obtained in the isolated word speech recognition system. good performance. DTW-based speech recognition has the characteristics of high isolated word detection and recognition rate and simple system, and is widely used. Based on the advantages of DTW technology, the present invention applies DTW speech recognition to truck vehicle detection.

[0030] An embodiment of a speech recognition vehicle inspection system applying a DTW-based speech recognition truck vehicle inspection method of the present invention is as follows figure 1 and figure 2 As shown, it includes a sound colle...

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Abstract

The invention discloses a DTW (dynamic time warping) voice recognition-based truck examining method which comprises the step of examining the truck by a training template and a voice recognition template. The method comprises the steps of: taking a DTW voice recognition algorithm as the core; forming the recognition template by training the normal voice generated when a normal truck passes through a track and the voice generated when a damaged truck passes through the track; distinguishing the condition of the damaged parts of the truck during recognition; and transmitting a result to a control center, so that an early diagnosis and forecast process can be made, and the running security of the truck can be guaranteed. The DTW voice recognition-based truck examining method has the advantages of being high in fault detection and recognition rate, and simple in operation system.

Description

technical field [0001] The invention relates to a dynamic time planning (DTW) speech recognition method, in particular to a truck vehicle inspection method based on DTW speech recognition. Background technique [0002] As the speed of trucks increases, the safety of trucks becomes more and more important. Vehicle inspection mainly checks wheels, axles, springs, and brake pads. Wheels are the most important load-bearing and running parts among all parts of a truck, and their quality is an important indicator of truck safety. Many truck accidents are ultimately caused by cracks in the wheels. The safety of railway traffic is an important factor restricting the development of railways in the direction of high speed and heavy load. With more and more high-speed freight trains put into operation, the issue of driving safety has been paid more and more attention by the railway department. [0003] The detection methods of trucks and vehicles in the prior art mainly contain the ...

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Application Information

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IPC IPC(8): G10L15/12G10L15/06G10L15/02B61K9/12
Inventor 崔金钟栾强厚邱会中武剑辉王勇朱国斌王志光
Owner INST OF ELECTRONICS & INFORMATION ENG IN
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