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
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[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...
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