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Interactive system for vehicle-mounted voice

An interactive system, vehicle-mounted voice technology, applied in the field of vehicle-mounted voice interaction systems, can solve problems such as small storage space, different chips, and non-support for floating-point operations

Inactive Publication Date: 2011-08-10
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 128K Byte 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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Examples

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example 1

[0050] .Rule(_Sil Name: $Vl_Sil{"$V1": person})

[0051] Name([General Manager{Wang Jing}Wang Jingwen President Wang {Wang Jingwen}Liu Shan Zhangqian]))

[0052] Sub-rule variable processing can also occur in sub-rules, through hierarchical transmission, and finally return to the rule. In addition, in the rules, the following methods can also be used to deal with the problem of the same semantics in different languages. For example, in the above example, "General Manager" and "General Manager Wang" both represent a person "Wang Jingjing", which can be changed in the statement The name of the representative "{wang scripture}" is given directly after the .

example 2

[0054]

[0055] The speech interaction system supports the CFG (context-free-grammar) grammar as the prototype speech recognizer. According to the set CFG grammar and template, it supports natural speech input capabilities, including connectives and continuous speech with a certain grammar structure. At the same time, it adopts natural language understanding technology and has a preliminary understanding function. For example, understand the real user command requirements (ie, the meaning of "nearby") of "the Hunan restaurant near Nanshan Science and Technology Park".

[0056] The voice interaction system also supports a single command of Chinese and English bilingual phrases, GPS place name recognition and person name speech recognition (such as opening CD, Sigma Building). Chinese commands, English commands and mixed Chinese-English bilingual commands can exist in the same command set at the same time.

[0057] The core algorithm adopts the method of co-design and combin...

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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 electronic technology, in-vehicle infotainment and information communication systems are gradually becoming the hot spots sought after by car manufacturers. The in-vehicle infotainment and information communication system is to provide the car with more entertainment, communication and mobile office functions. System), intelligent transportation system, car 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 allows machines to convert voice signals into corresponding text or commands through the process of recognition and understanding, so as to realize the communication between humans and machines. In th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L15/00G10L15/08G10L15/06G10L15/20G10L15/18G10L11/02G10L15/193
CPCG10L2015/0631G10L15/005G10L15/193G01C21/3608
Inventor 刘轶杨永胜
Owner SHENZHEN RAISOUND TECH
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