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Short-distance wireless data transmission system

A wireless data transmission, data transmission system technology, applied in transmission systems, near-field transmission systems, communication between multiple stations, etc., can solve the problems of high price, complex structure, high power consumption, etc., to reduce power consumption , Improve the anti-interference ability, improve the effect of transmission reliability

Inactive Publication Date: 2010-03-03
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing short-distance wireless data transmission systems all have the disadvantages of high power consumption, complex structure, and high price, which greatly restricts the application of this technology in many industrial sites with limited power supply.

Method used

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  • Short-distance wireless data transmission system

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Experimental program
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Effect test

Embodiment 1

[0053] Such as image 3 As shown, a short-distance wireless data transmission system includes a master device and several slave devices; the master device 10 includes a microprocessor (MCU) unit, a wireless transceiver unit, a wireless antenna and a matching circuit, and the MCU unit and the wireless transceiver unit pass through Bus connection, the two constitute the main device wireless data transmission module 11, the corresponding communication protocol and application program are all realized on the MCU, the slave device 20 includes an MCU unit, a wireless transceiver unit, a wireless antenna and a matching circuit, the MCU unit and the wireless transceiver unit Connected through the bus, the two constitute the wireless data transmission module 21 of the slave device; the user master computer transmits data to the MCU unit of the wireless data transmission module 11 of the master device through the serial port communication bus, and the MCU unit sends the data to the wirel...

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Abstract

The invention relates to a short-distance wireless data transmission system with ultra-low power consumption. The system greatly reduces the power consumption of a device while ensuring reliable transmission of data. The system comprises a main device, a plurality of auxiliary devices and a device for dividing a time period of the system into a communication time section and a sleeping time section. In the communication time section, a wireless data transmission module is in a normal working state; in the sleeping time section, microprocessors are in a low power mode; in the low power mode, the microprocessors of the main device and the auxiliary devices enter a sleeping mode, the CPU of the processors stops working, serial port modules of the microprocessors are still in a working state,and the current of the microprocessors is smaller than 550 micron A at the moment; a wireless receiving and transmitting unit stops working in the low power mode; an automatic tracing main device synchronizing device is arranged in each auxiliary device, and the device is used for adjusting the time of the auxiliary devices according to a time frame pair of the main device so as to synchronize with a clock of the main device.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a short-distance wireless data transmission system. Background technique [0002] Short-distance wireless data transparent transmission is a cable replacement technology. It has been widely used in many fields such as industrial production, medical monitoring, and scientific research. Wiring troubles, and at the same time has the advantages of low cost, easy to carry and so on. The existing short-distance wireless data transmission system consists of two parts: a sending terminal and a receiving terminal. The sending terminal PC sends data to the wireless sending end through the serial port, and the wireless receiving end transmits the received data to the receiving end PC through the serial port. The hardware design of the sending terminal and the receiving terminal is the same, but the firmware programming is different. System implementation block diagram, suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B5/00H04B7/26
CPCY02B60/50Y02D30/70
Inventor 王琢玉张轩刘昊方晨陆生礼时龙兴
Owner SOUTHEAST UNIV
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