Supercharge Your Innovation With Domain-Expert AI Agents!

Voice transmission system for wireless sensor network

A wireless sensor network and voice transmission technology, applied in voice analysis, wireless communication, advanced technology, etc., can solve the problems of complex power consumption and insufficient low power consumption, and achieve the effect of low power consumption

Inactive Publication Date: 2013-10-09
SOUTHEAST UNIV
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a voice transmission system for wireless sensor networks, which realizes low-power voice transmission used in wireless sensor networks, and solves the problems of relatively complex and insufficient power consumption in existing voice transmission. question

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
  • Voice transmission system for wireless sensor network
  • Voice transmission system for wireless sensor network
  • Voice transmission system for wireless sensor network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0031] This embodiment describes a voice transmission system for a wireless sensor network. The voice data is converted into a PCM value through a CODEC coding unit, and the PCM value is 24-bit data of the left and right channels. The voice transmission system includes Conversion unit, compression coding unit, serial-to-parallel conversion unit and main control unit, the structure of which is as follows figure 1 As shown, the specific transmission process is as follows:

[0032] The gained PCM value is then sent to the digit conversion unit, and the digit conversion unit converts the received 24-bit data of the left and right channels into two 14-bit left and right channel data, and its workflow is as follows figure 2 shown;

[0033] The two 14-bit left and right channel data are then compressed and encoded to achieve lossy compression of the audio data, and the 14-bit audio data is compressed into 4-bit audio data;

[0034] The 4-bit audio data is sent to the serial-to-par...

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

Disclosed in the invention is a voice transmission system for a wireless sensor network. Voice data are converted into PCM values by a CODEC coding unit, wherein the PCM values are 24-bit data of left and right sound channels; the PCM values are transmitted to a bit conversion unit; the bit conversion unit converts the received 24-bit data of the left and right sound channels into two 14-bit left-right sound channel data; the two 14-bit left-right sound channel data are processed by a compressed encoding unit to realize lossy compression of audio data, so that the 14-bit audio data are compressed into 4-bit audio data; the 4-bit audio data are transmitted to a deserializing unit, the deserializing unit converts the 4-bit audio data outputted by the compressed encoding unit into 32-bit audio data so as to carry out bus transmission, and an enabling signal is outputted to an asynchronous FIFO, so that the asynchronous FIFO can take data; and the deserializing unit is connected with a master control unit that is in butt joint with an AHB bus, and the master control unit transmits data in the asynchronous FIFO to a designated storage zone by the AHB bus. According to the invention, a single-frequency and transient detection is removed; a voice coding requirement is ensured; low power consumption is realized; and the voice transmission system is suitable for application to a wireless sensor network to carry out voice transmission.

Description

technical field [0001] The invention relates to the technical field of voice transmission, in particular to a voice transmission system for a wireless sensor network. Background technique [0002] The pace of scientific and technological development is getting faster and faster, and human beings have been in the information age. As the most important and basic technology for information acquisition - sensor technology has also been greatly developed. Sensor information acquisition technology has gradually developed from simplification in the past to integration, miniaturization and networking, and will bring about an information revolution. [0003] As early as the 1970s, the prototype of sensor network formed by using point-to-point transmission of traditional sensors and connecting sensor controllers appeared. We attribute it to the first generation sensor network. With the continuous development and progress of related disciplines, the sensor network also has the compre...

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): G10L19/008H04W52/02
CPCY02D30/70
Inventor 刘昊吴博文
Owner SOUTHEAST UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More