Wireless Structural Health Monitoring Node Based on RF Energy Harvesting

A technology of health monitoring and radio frequency energy, applied in wireless communication, measuring devices, instruments, etc., to achieve the effect of prolonging the life cycle and reducing the difficulty of placement

Active Publication Date: 2018-02-09
ZHEJIANG UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the life cycle problem of sensor nodes in the existing structural health monitoring technology, a wireless structural health monitoring node based on radio frequency energy harvesting is provided

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wireless Structural Health Monitoring Node Based on RF Energy Harvesting
  • Wireless Structural Health Monitoring Node Based on RF Energy Harvesting
  • Wireless Structural Health Monitoring Node Based on RF Energy Harvesting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below in conjunction with drawings and embodiments.

[0023] like figure 1 As shown, the overall structure of the wireless structural health monitoring node based on RF energy harvesting is described. The node includes an energy antenna module, an energy conversion module, a sensor module and a microprocessor module. The energy antenna adopts a Patch antenna with a center frequency of 915MHz. The energy antenna module receives the electromagnetic wave emitted by the radio frequency source and converts it into high-frequency direct current; the energy conversion module includes three parts: RF-DC energy conversion module, energy storage module and voltage stabilization module , after impedance matching, it is connected to the energy antenna module, and the high-frequency direct current generated by the antenna is converted into a low-frequency direct current and stored in the supercapacitor; the sensor module senses and co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a wireless structure health monitoring node based on radio frequency energy collection. The node includes an energy antenna module, an energy conversion module, a sensor module and a microprocessor module. The energy antenna module is composed of a Patch antenna; the energy conversion module is composed of an RF-DC energy conversion module, an energy storage module and a voltage stabilization module; the sensor module includes a temperature sensor module and a stress sensor module; the microprocessor module includes a microprocessor control module And ZigBee wireless communication module. The wireless structural health monitoring node based on radio frequency energy collection proposed by the present invention can autonomously collect radio frequency energy in the environment, convert the radio frequency energy into DC voltage to continuously supply power to the entire node, and can also continuously and stably send temperature and stress to the sink node sensor information.

Description

technical field [0001] The invention relates to wireless rechargeable sensor network technology and structural health monitoring technology, in particular to a wireless sensor node capable of monitoring structural health based on radio frequency energy collection. Background technique [0002] With the rapid development of wireless sensor network technology (WSN), WSN is now widely used in national defense and military, environmental monitoring, industrial control, structural health monitoring and other fields. In the actual application environment of structural health monitoring, sensor nodes are often deployed inside the structure, so in the traditional structural health monitoring technology, the life of sensor nodes often depends on the energy carried by the node battery. [0003] However, if the environmental energy harvesting technology is applied to the energy supply of sensor nodes, it can spontaneously obtain external energy from the space environment where it is lo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/20H04W88/02H04W84/18G01D21/02
Inventor 陈硕陈积明史治国陈敏程鹏
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap