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Wirelessly charged sensor node

A sensor node and wireless charging technology, applied in current collectors, instruments, electric vehicles, etc., can solve the problem of short communication distance between tags and readers, achieve the effect of getting rid of dependence and reducing energy consumption

Active Publication Date: 2011-04-13
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The tag itself does not carry a battery, but is powered by receiving and converting the VHF electromagnetic wave signal emitted by the reader, thus getting rid of the shackles of the battery. At the same time, the tag only carries its own ID information, and the tag and the reader The communication distance between

Method used

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Such as figure 1 As shown, the overall structural composition of the novel node is described. It is mainly composed of PCB antenna, RF front-end module, microprocessor module, sensor module, and wireless RF module. The PCB antenna is connected to the RF front-end module. The RF front-end module collects energy and connects to the microprocessor module through the voltage regulator sub-module. The microprocessor module is connected to the sensor module through the IO port, and connected to the wireless radio frequency module through the SPI interface.

[0019] The RF energy collected by the PCB antenna is rectified and converted by the RF front-end module and stored in the energy storage capacitor Cmax. Under the action of the voltage stabilization sub-module, the RF front-end module finally outputs a stable voltage Vreg, which provides energy fo...

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PUM

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Abstract

The invention discloses a wirelessly charged sensor node. The node mainly comprises a printed circuit board (PCB) antenna, a radio frequency front end module, a microprocessor module, a sensor module and a wireless radio frequency module, wherein the PCB antenna is connected with the radio frequency front end module; the radio frequency front end module is connected with the microprocessor module through a voltage-stabilizing submodule; and the microprocessor module is connected with the sensor module through an input and output (IO) port, and is connected with the wireless radio frequency module through a serial peripheral interface (SPI). The sensor node not only can be wirelessly charged, but also can acquire data of various sensors and send the data out through wireless radio frequency chips.

Description

technical field [0001] The invention relates to a novel wireless sensor node which integrates radio frequency identification wireless charging function and sensor node acquisition sensor data function without battery power supply. Background technique [0002] The development of semiconductor technology and computer technology has made great research and application of Wireless Sensor Network (WSN) and Radio Frequency IDendification (RFID). The sensor network is mainly composed of sensor nodes, and the monitoring of a specific sensor parameter can be completed through the reasonable arrangement of sensor nodes. The sensor node is roughly composed of three parts: sensor, microprocessor, and radio frequency module. The sensor transmits the collected sensing signal to the microprocessor for processing. After processing, the data is sent to another node or the host computer through the radio frequency module. . RFID technology is mainly composed of two parts - reader and tag. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J17/00H02J7/02G06F17/00H02J50/20
Inventor 陈积明江发昌程鹏贺诗波孙优贤
Owner ZHEJIANG UNIV
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