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Method and terminal for controlling half-duplex digital intercom system communication

An intercom system and intercom terminal technology, applied in the field of communication, can solve the problems of large manpower and material resources, VAD recognition accuracy and labor cost, and achieve the effect of ensuring that it is not lost and improving robustness.

Active Publication Date: 2022-03-25
GUANGDONG HUANYU ELECTRONICS TECH CO LTD
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Through the above analysis, if you want to ensure the stability of the intercom system, you need to make a lot of scenario assumptions and tests on the VAD algorithm, which will cost a lot of manpower and material resources, resulting in huge recognition accuracy and labor costs for the entire VAD

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  • Method and terminal for controlling half-duplex digital intercom system communication
  • Method and terminal for controlling half-duplex digital intercom system communication
  • Method and terminal for controlling half-duplex digital intercom system communication

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0048] figure 2 It shows the schematic diagram of the hardware structure of the half-duplex digital intercom terminal in the embodiment of the present invention, including: a microphone, a voice codec module, a DSP processor, a modem module, a wireless transceiver module, an analog voice amplification module, Speaker, envelope detection module, communication status control module and voice processing module, etc.

[0049] The analog voice signal generated by the ...

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Abstract

The embodiment of the present invention discloses a method and a terminal for controlling the communication of a half-duplex digital intercom system. The method includes: performing envelope detection on the analog voice signal on the microphone; Converter into a digital signal; control the communication state of the wireless transceiver module based on the digital signal. The embodiments of the present invention adopt a cheap discrete analog circuit to detect the strength of the voice signal and use it to drive the transmission state of the system, thereby improving the robustness of the system.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a communication method, terminal and system for controlling a half-duplex digital intercom system. Background technique [0002] figure 1 Shows the hardware schematic diagram of the existing half-duplex digital intercom system, the voice signal generated based on the microphone is sent to the DSP processor for processing after the voice coding module realizes analog-to-digital (AD) conversion, and the DSP processor It is necessary to cache the voice signal after AD conversion, and at the same time, it needs to perform voice activity detection (VAD) on the voice signal through an algorithm. After detecting a valid voice, the control system opens the transmission channel, and the DSP processor inputs the buffered digital signal to the The modem module then controls the wireless transceiver module to open the transmission channel, and sends the voice signal through the antenn...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40H04L5/16H04Q5/24
CPCH04B1/40H04Q5/24H04L5/16
Inventor 陈乐建林为銮麦炜琪陈美瑜玉元星
Owner GUANGDONG HUANYU ELECTRONICS TECH CO LTD