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Wireless real-time high-quality voice transmission device and method based on ZigBee technology

A real-time voice and transmission device technology, applied in transmission system, wireless communication, advanced technology, etc., can solve the problems that the quality of audio transmission cannot be guaranteed, and the continuous burst errors of wireless channels are not considered, so as to improve the quality of voice calls and reduce the The amount of data and the effect of eliminating misunderstandings

Inactive Publication Date: 2014-04-30
CHINA COAL MINE CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method does not take into account the continuous burst errors caused by the wireless channel to data transmission, and cannot guarantee the quality of audio transmission

Method used

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  • Wireless real-time high-quality voice transmission device and method based on ZigBee technology
  • Wireless real-time high-quality voice transmission device and method based on ZigBee technology
  • Wireless real-time high-quality voice transmission device and method based on ZigBee technology

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Embodiment Construction

[0035] The present invention will be described below with the help of a specific implementation example, but the embodiments of the present invention are not limited to this.

[0036] See figure 1 , figure 2 The structure of the wireless real-time voice high-quality transmission device based on ZigBee technology in this embodiment includes two identically equivalent devices A and B, and the structure settings of the device A and device B both include at least an electret microphone , Motorized speakers, voice processing circuits, embedded microcontroller circuits and ZigBee radio frequency circuits.

[0037] The electret microphone is used to convert a sound signal into an analog voltage signal;

[0038] The electrodynamic speaker is used to convert an analog voltage signal into a sound signal;

[0039] The voice processing circuit is a circuit composed of a voice codec chip containing a voice acquisition unit and a voice playback unit and its peripheral components; the voice acquisi...

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Abstract

The invention relates to the technical field of wireless voice communications, in particular to a full-duplex real-time voice transmission device and method based on the ZigBee technology, and the device and method need to ensure the transmission quality of high-quality voice. The wireless real-time high-quality voice transmission device comprises a device A and a device B which are the same and are equivalent, wherein the device A and the device B respectively and structurally comprise an electret type microphone, a dynamic speaker, a voice processing circuit, an embedded type microcontroller circuit and a Zigbee radio-frequency circuit at least; the device A and the device B are a sending device and a receiving device respectively. The full-duplex real-time voice transmission device is simple in structure and low in power dissipation and cost, has the error control function and can achieve point-to-point high quality full-duplex real-time voice communication in the ZigBee network.

Description

Technical field [0001] The present invention relates to the technical field of wireless voice communication, in particular to a full-duplex real-time voice transmission device and method based on ZigBee technology and requiring high-quality audio transmission quality. Background technique [0002] The wireless sensor network is composed of a large number of small and cheap sensor network nodes deployed in a specific area. These nodes sense and collect the information required by users in a cooperative manner, and transmit these data to users through wireless channels. A typical ZigBee wireless sensor network architecture is composed of a number of sensor network nodes, sink nodes with wireless receiving functions, Internet or other communication networks, and remote user control centers. The sensor network node is used to collect data in a specific area and send it to the sink node by wireless transmission and multi-hop self-organization; the sink node is used to receive the data...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/04H04W28/06H04L1/00
CPCY02D30/70
Inventor 赵士兵张亚光孟祥浩庞广峰马进潘军民王建平李奇越王珍
Owner CHINA COAL MINE CONSTR GRP
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