Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Vehicle intelligent voice control system suitable for complex environment and construction method thereof

An intelligent voice and control system technology, applied in voice analysis, voice recognition, instruments, etc., can solve problems such as poor signal separation, achieve the effects of improving voice recognition rate and driving safety, saving costs, and strong compatibility

Pending Publication Date: 2018-12-25
BEIHANG UNIV
View PDF2 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this algorithm is only suitable for the ideal situation without noise, and the presence of noise will make the signal separation effect not good

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vehicle intelligent voice control system suitable for complex environment and construction method thereof
  • Vehicle intelligent voice control system suitable for complex environment and construction method thereof
  • Vehicle intelligent voice control system suitable for complex environment and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] See figure 1 — Figure 10 , the present invention proposes a vehicle intelligent voice control system suitable for complex environments, including: an audio input and output unit, a signal preprocessing unit, a signal denoising unit, a signal blind source separation unit, a signal classification unit, a voice keyword recognition unit, Data analysis unit and function execution unit. They are interconnected with each other.

[0056] The audio input and output unit inputs sound stream into the system through an audio input sensor—a binary microphone array, and converts the audio signal into a digital signal through an A / D converter embedded in the microphone.

[0057] The signal preprocessing unit detects whether a voice signal is included in the input audio by a voice activity detection method, and locates the start position and the end position of the voice signal, and then encapsulates the mixed audio signal segment containing the voice into a communication data fram...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a vehicle intelligent voice control system suitable for a complex environment and a construction method thereof. The control system comprises an audio input and output unit, asignal preprocessing unit, a signal denoising unit, a signal blind source separation unit, a signal classification unit, a speech keyword recognition unit, a data analysis unit, and a function execution unit, which are connected to each other. The advantages of the invention are as follows: 1) a wavelet threshold denoising method is used to remove complex noise, an optimal wavelet basis can be adaptively selected, and a threshold can be selected according to changes in noise; 2) an underdetermined blind source separation method is introduced to separate a speech instruction from a mixed audioincluding many interferences, thereby improve the recognition rate of the speech instruction; 3) the system only uses a binary microphone as an audio input end, which saves the cost; and 4) all the interfaces adopt a common interface standard, the compatibility is strong, and the system is easily applied to various vehicle platforms.

Description

technical field [0001] The invention is a vehicle intelligent voice control system suitable for complex environments and its construction method. It adopts voice enhancement technology based on wavelet threshold denoising and blind source separation, combined with automatic voice keyword recognition technology, to realize the control system in complex vehicle environments. Accurate recognition of voice commands, improving vehicle intelligence and driving safety, belongs to the field of digital signal processing. Background technique [0002] Intelligent driving is the behavior of car driving assisted or replaced by artificial intelligence. It can make up for the defects of human drivers and make driving more convenient and safer. With the rapid development of sensor and artificial intelligence technology, intelligent driving has attracted widespread attention in the fields of automobile industry, information technology and Internet, and related technologies and industries ha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G10L15/04G10L15/14G10L15/16G10L15/22G10L15/26G10L21/0208G10L21/0216G10L21/028
CPCG10L15/04G10L15/142G10L15/16G10L15/22G10L15/26G10L21/0208G10L21/0216G10L21/028G10L2021/02166G10L2015/223
Inventor 雷鹏陈美玲王俊关振宇
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com