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Interactive system for vehicle-mounted voice

An interactive system, vehicle voice technology, applied in the field of vehicle voice interaction system, can solve the problems of low voice recognition rate, limited, single function, etc.

Inactive Publication Date: 2008-10-08
SHENZHEN RAISOUND TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, since the accent of each user is different, and the actual vehicle environment is relatively complex, in order to improve the recognition rate and recognition content of vehicle voice interaction, and improve its performance in the actual vehicle environment, it is necessary to improve the computing power of the vehicle system
On the other hand, based on the limited hardware resources of micro-processing chips in automotive electronics, the computing power of the chip is very limited, generally only 100MIPS, and does not support floating-point operations; in addition, the storage space of the chip is also very small, generally 128KByte ROM and 32KByte RAM
This leads to the single function of the current vehicle voice control products, low voice recognition rate, few and simple recognition content, and poor performance in the actual vehicle environment.

Method used

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  • Interactive system for vehicle-mounted voice
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  • Interactive system for vehicle-mounted voice

Examples

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example 1

[0049] .Rule(_Sil Name:$V1_Sil{″$V1″:person})

[0050] Name([General Manager {Wang Jingwen} Wang Jingwen President Wang {Wang Jingwen} Liu Shan Zhang Qian]))

[0051] Sub-rule variable processing can also appear in sub-rules, through hierarchical forwarding, and finally return to the rule. In addition, in the rules, the following method can also be used to deal with the problem of the same semantics described in different languages. For example, in the above example, "General Manager" and "Wang Zong" both represent a person "Wang Jingwen", and you can change the expression The representative's name "{Wang Jingwen}" is directly given after the .

example 2

[0053]

[0054] The voice interaction system supports the CFG (context-free-grammar) grammar as a prototype speech recognizer, and supports natural voice input capabilities according to the set CFG grammar and template, including conjunctions and continuous voice with a certain grammatical structure. At the same time, it adopts natural language understanding technology and has a preliminary understanding function. Such as understanding the real user command requirements of "a Hunan restaurant near Nanshan Science and Technology Park" (that is, the meaning of "nearby").

[0055] The voice interaction system also supports bilingual Chinese and English phrases for a single command, and GPS place name recognition and person name voice recognition functions (such as opening a CD, Sigma Building). Chinese commands, English commands and Chinese-English bilingual commands can exist in the same command set at the same time.

[0056] The core algorithm adopts the method of co-design...

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Abstract

The present invention discloses an onboard speech interactive system, which comprises a speech acquisition module, a core speech recognition module, and a speech feedback module, wherein, the core speech recognition module comprises an acoustic model and pronunciation dictionary module, a context irrelevant syntax module, and a path searching module; the acoustic model and pronunciation dictionary module is designed to establish a mapping table related to accent variation characteristic with a statistical algorithm; the context irrelevant syntax module is designed to construct a syntax and rule structure for the natural continuous speech to be recognized; the path searching module is designed to carry out approximate simplification for the observed probability calculation part with the highest amount of calculation. The present invention implements control and operation of the onboard information system by means of natural speech (including command phrases, conjunctions, and continuous speech that follows certain rules), and thereby can enhance driving safety, and implements intelligent man-machine interaction in the onboard information system, independent of driving safety and dynamic performance of the automobile.

Description

【Technical field】 [0001] The invention relates to the technical field of speech recognition, in particular to a vehicle-mounted speech interaction system. 【Background technique】 [0002] With the rapid development of automotive electronics technology, in-vehicle infotainment and information communication systems are gradually becoming hot spots pursued by automakers. In-vehicle infotainment and information communication system is to provide more entertainment, communication and mobile office functions for the car. It is not directly related to the safety and power performance of the car itself. System), intelligent transportation system, vehicle network, car audio system (car MP3), car TV entertainment system (car DVD) and so on. [0003] Voice interaction technology plays a very important role in these systems. Voice interaction technology is to allow machines to convert voice signals into corresponding text or commands through the process of recognition and understanding,...

Claims

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Application Information

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IPC IPC(8): G10L15/00G10L15/08G10L15/06G10L15/20G10L15/18G10L11/02G10L15/193
CPCG01C21/3608G10L15/193G10L15/005G10L2015/0631
Inventor 刘轶杨永胜
Owner SHENZHEN RAISOUND TECH
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