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Low-power spread-spectrum wireless communication module and method thereof

A wireless communication module and low power consumption technology, applied in the field of communication, can solve the problems of Zigbee technology adaptive networking mode limitations, increase in the number of devices used, increase in device maintenance costs, etc., achieve low transmission power, eliminate synchronization overhead and hops Number, the effect of reducing interference

Inactive Publication Date: 2017-02-15
宁夏计算机软件与技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] The short-distance communication of Zigbee technology will be subject to great technical limitations for data communication transmission in vast areas. First, the limitation of short-distance communication will increase the number of devices used. Secondly, it is necessary to increase the number of node devices such as routers or coordinators in the Zigbee network. , more investment in equipment, which greatly increases the maintenance cost of equipment
And the increase in the number of devices will cause a longer delay in data transmission, which will greatly reduce the real-time reference value of the transmitted data
The resulting technical shortcomings are obvious
[0025] (2) Technical shortcomings two
The adaptability of Zigbee technology in applications is limited by its networking mode

Method used

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  • Low-power spread-spectrum wireless communication module and method thereof
  • Low-power spread-spectrum wireless communication module and method thereof
  • Low-power spread-spectrum wireless communication module and method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0063] A low-power spread spectrum wireless communication module, including a radio frequency chip, a single-chip microcomputer, a power supply circuit, a crystal oscillator circuit, a radio frequency circuit and an antenna, SPI communication between the radio frequency chip and the single-chip microcomputer, the input voltage of the power supply circuit to the single-chip microcomputer and the radio frequency chip, the radio frequency chip and the antenna The crystal oscillator circuit is connected to the single-chip microcomputer through the radio frequency circuit, and the radio frequency circuit includes a radio frequency signal receiving circuit and a radio frequency signal transmitting circuit.

Embodiment 2

[0065] In this embodiment, the antenna circuit includes an antenna switch. The RFC port of the antenna switch is connected in series with a capacitor C22, and C22 is connected to a π-type filter circuit. The π-type filter circuit includes two capacitors and an inductor, and the π-type filter circuit is connected to the antenna. , forming a general antenna network circuit. The remaining technical solutions of this embodiment are consistent with those of Embodiment 1, and the technical solutions adopted in this embodiment are also applicable to other embodiments.

Embodiment 3

[0067] In this embodiment, when the antenna circuit is soldered, the antenna switch port is connected to the second pad of the capacitor C22 through the NetC22_2 network, the first pad of the capacitor C22 is connected to the first pad of the capacitor C23 through the NetC22_1 network, and the first pad of the capacitor C23 is connected to the first pad of the capacitor C23 through the NetC22_1 network. The second pad is connected to the GND network, the first pad of the inductor L7 is connected to the network NetC22_1, the second pad of the inductor L7 is connected to the NetANT_1 network, the first pad of the capacitor C24 is connected to the NetANT_1 network, and the second pad of the capacitor C24 is connected to GND network, the first pad of the antenna is connected to the NetANT_1 network, and the second pad of the antenna is connected to the GND network. The remaining technical solutions of this embodiment are consistent with those of Embodiment 2, and the technical solu...

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Abstract

The invention relates to a low-power spread-spectrum wireless communication module which comprises a radio-frequency chip, a single chip microcomputer, a power circuit, a crystal oscillation circuit, a radio-frequency circuit, and an antenna. The radio-frequency chip and the single chip microcomputer perform SPI communication. The power circuit inputs a voltage to the single chip microcomputer and the radio-frequency chip. The radio-frequency chip and the antenna are connected by the radio-frequency circuit. The output of the crystal oscillation circuit is sent to the single chip microcomputer. The radio-frequency circuit consists of a radio-frequency signal receiving circuit and a radio-frequency signal transmitting circuit. The single chip microcomputer is an STM8 single chip microcomputer. The invention further discloses a low-power spread-spectrum wireless communication method. The module and the method have the advantages as follows: the power consumption and cost are low, the network transmission efficiency is improved, and interference is reduced; a wider transmission range and a longer transmission distance are achieved, zero-fee data transmission is realized, and only power supply by batteries is needed; and specific Internet-of-things enterprises can build a low-power wide-area network through the low-power wireless communication module to remotely receive data collected by a sensor.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a low-power spread spectrum wireless communication module and a method thereof. Background technique [0002] Low-power wireless communication technology is a communication technology suitable for the development of the Internet of Things industry developed from wireless communication technology in recent years. Among them, Zigbee technology is a relatively mature low-power communication technology, and the application of this technology Scenarios and actual development projects are widely used, especially in smart home applications. Zigbee technology has a unified technical standard for short-distance wireless communication technology. Its physical layer and data link layer protocol are IEEE 802.15.4 protocol standards. The network layer and security layer are formulated by the ZigBee Alliance. , to develop and utilize it. [0003] Zigbee technology principle, network s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40G08C17/02H04W84/12
CPCG08C17/02H04B1/40H04W84/12Y02D30/70
Inventor 王颢
Owner 宁夏计算机软件与技术服务有限公司
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