Wireless charging system suitable for low-power-consumption wireless sensor network node equipment

A wireless sensor and network node technology, applied in network topology, wireless communication, electrical components, etc., can solve the problem of inability to meet the needs of charging, and achieve the effects of high energy receiving efficiency, convenient use, and reduced damage

Inactive Publication Date: 2016-10-26
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This wireless charging method cannot meet the needs of long-distance charging of wireless sensor network nodes.

Method used

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  • Wireless charging system suitable for low-power-consumption wireless sensor network node equipment
  • Wireless charging system suitable for low-power-consumption wireless sensor network node equipment
  • Wireless charging system suitable for low-power-consumption wireless sensor network node equipment

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Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1 Overall working principle of the present invention

[0030] refer to figure 1 The structure of the wireless charging system suitable for low-power wireless sensor network node equipment based on wireless radio frequency energy harvesting technology of the present invention is composed of a radio frequency energy transmitting base station and a wireless sensor network node. The radio frequency energy transmitting base station transmits radio frequency energy to the direction of the node through the directional transmitting antenna, and the receiving antenna on the low-power wireless sensor network node within the coverage of the radio frequency energy transmitting base station receives the radio frequency energy for charging the load battery.

Embodiment 2

[0031] Embodiment 2 General framework of the present invention

[0032] refer to figure 2, the structure of the wireless charging system suitable for low-power wireless sensor network node equipment based on wireless radio frequency energy harvesting technology of the present invention is: radio frequency generation module 1, radio frequency transmission power amplification module 2, transmission antenna 3, reception antenna 4, RF -DC rectification and boosting module 5 , energy storage module 6 and power management module 7 . Wherein the radio frequency generation module 1 is responsible for generating the required 500MHz radio frequency signal; the radio frequency transmission power amplification module 2 is responsible for amplifying the power of the radio frequency signal generated by the radio frequency generation module 1 to be transmitted; the transmitting antenna 3 is responsible for passing through the radio frequency transmission power amplification module 2. The r...

Embodiment 3

[0033] Embodiment 3 The radio frequency generation module 1 of the present invention

[0034] refer to image 3 , the structure of the radio frequency generation module 1 is: the pin 1 of the chip UPC1651 is connected to the +6v power supply, the pin 3 is grounded, the pin 4 is grounded through the capacitor C2, the capacitor C1 is connected between the pin 4 and the pin 2, and the lead Pin 4 is also connected to one end of the capacitor C4 and one end of the inductor L1, the other end of the inductor L1 is connected to one end of the variable capacitor C3, the other end of the variable capacitor C3 is grounded, and the other end of the capacitor C4 is used as the output end of the radio frequency generation module 1, Denoted as port M1_OUT. Adjust the variable capacitor so that the output frequency is 500MHz, and this module provides 500MHz radio frequency for the entire transmitter.

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PUM

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Abstract

The invention provides a wireless charging system suitable for low-power-consumption wireless sensor network node equipment, wherein the wireless charging system belongs to the technical field of wireless energy transmission. The wireless charging system comprises a transmitting-end device and a receiving-end device. The wireless charging system is characterized in that the transmitting-end device comprises an RF generating module (1), an RF transmitting power amplifying module (2) and a transmitting antenna (3). The receiving-end device comprises a receiving antenna (4), an RF-DC rectification boosting module (5), an energy storage module (6) and a power management module (7). The wireless charging system has advantages of convenient use, long receiving distance, high energy receiving efficiency, high safety, etc.

Description

technical field [0001] The invention belongs to the technical field of wireless energy transmission, and in particular relates to a wireless charging system suitable for low-power wireless sensor network node devices based on wireless radio frequency energy collection technology. Background technique [0002] Since Faraday discovered the phenomenon of electromagnetic induction in 1831, electric energy is mainly transmitted by wires, and electrical equipment mainly obtains electric energy through the contact of electrical connectors such as plugs and sockets. With the rapid development of microelectronics technology, especially the development of wireless sensor technology and its application industry, higher requirements are put forward for the power supply mode of wireless sensor network nodes. Traditional battery replacement and wired charging are no longer sufficient for the new wireless sensor network. If wireless charging is used to charge wireless sensor network nodes...

Claims

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Application Information

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IPC IPC(8): H02J50/20H04W84/18
CPCH02J7/025H04W84/18
Inventor 于银辉刘生成陈兆强张羽丰周恒
Owner JILIN UNIV
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