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Non-directive infrared wireless transmission communication system

A wireless transmission, non-directional technology, applied in the field of radio communication, can solve the problems of high energy consumption and short maintenance time of scattered transmission, and achieve the effect of high gain and sensitive change, less number of tubes and less energy consumption

Inactive Publication Date: 2007-01-31
樊燕刚 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its user cannot freely move and rotate in the 360° range of free space
In addition, its dispersed emission consumes too much energy, and the maintenance time of mobile use is short

Method used

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  • Non-directive infrared wireless transmission communication system
  • Non-directive infrared wireless transmission communication system
  • Non-directive infrared wireless transmission communication system

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Experimental program
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Effect test

Embodiment Construction

[0020] The present invention is further described below in conjunction with accompanying drawing:

[0021] Such as figure 1 As shown, the infrared emitting device in the present invention mainly includes a preamplifier, a carrier modulation module, a power driving module, a centralized optical transmitter and a power supply. It works on the image 3 It can be seen that the microphone, that is, the microphone converts the voice into an audio signal, and uses different numbers of microphones, such as monophonic and stereophonic signals. This signal can be amplified and modulated by the preamplifier, and then be input to the switch to amplify and drive the infrared transmitter. Concentrated emission is carried out in the device, and the system of the present invention is in a closed space, so the emitted infrared light will be diffusely reflected in the closed space. The result of this diffuse reflection is that the above-mentioned infrared light will be reflected to any positi...

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PUM

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Abstract

The invention belongs to radio communication field, especially a novel transmission system for making unoriented communication signal transmission in a closed space with a certain range, mainly used to transmit audio signals. An unoriented infrared wireless transmission communication system comprises infrared transmitting device and infrared receiving device, where the infrared transmitting device comprises audio signal input, multitrack mixing module, switch drive amplifier, and infrared transmitter, and the infrared receiving device comprises infrared receiver, demodulation module, power amplifier, and sound box, where the infrared transmitter is a centralized infrared transmitter, i.e. the transmitted infrared light is linearly transmitted in any direction. And it provides a novel communication system used in a closed space with a certain range and able to make unoriented communication signal transmission and reception, mainly used in rooms, classrooms, cinemas and so on.

Description

【Technical field】 [0001] The invention belongs to the field of radio communication, in particular to a new type of transmission system for non-directional communication signal transmission in a closed space within a certain range, which is mainly used for transmitting audio signals. 【Background technique】 [0002] Radio communication is widely used in modern society. In the conventional infrared wireless microphone, one or two infrared light-emitting diodes are arranged in a certain direction at the lower end of the casing portion of the infrared wireless microphone. It properly converts the audio signal input to the microphone into an electrical signal, and drives one to three infrared light-emitting diodes with the carrier signal modulated by the electrical signal. The photoreceptors arranged on the walls of each room receive the light emitted by the infrared light-emitting diodes, and then convert it into an electrical signal and input it into a suitable audio device. I...

Claims

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Application Information

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IPC IPC(8): H04B10/00H04B10/04H04B10/06H04B10/114H04B10/50H04B10/60
Inventor 樊燕刚黄循奋
Owner 樊燕刚
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