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Ultra-low power consumption passive structural strain monitoring device

An ultra-low power consumption, strain monitoring technology, applied in the direction of electromagnetic measurement devices, electric/magnetic solid deformation measurement, etc., can solve the problem of maintenance batteries that cannot work for a long time, solve the problem of energy dependence, increase the communication range, strong real-time Effects of Sex and Accuracy

Inactive Publication Date: 2016-02-10
ZHEJIANG UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide an ultra-low power consumption passive structure strain monitoring device for the deficiencies of the existing strain monitoring technology, so as to solve the problems in the prior art that the sensor needs a battery for energy supply, and the battery needs to be maintained later and cannot work for a long time. question

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  • Ultra-low power consumption passive structural strain monitoring device

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing and example the present invention is described in further detail.

[0028] Such as figure 1 As shown, the present invention is an ultra-low power passive strain monitoring device, which includes a radio frequency front end, an ultra-low power consumption MCU, a strain detection module and an energy storage capacitor, wherein the radio frequency front end includes a dipole antenna, a rectifier and a voltage doubler A voltage stabilizing module, a demodulation module and a transmitting module; the dipole antenna is connected to the rectifying voltage doubling and stabilizing module, the demodulating module and the transmitting module respectively, and the rectifying voltage doubling and stabilizing module is respectively connected to the energy storage capacitor and the ultra-low power consumption The MCU is connected, and the demodulation module, strain detection module and transmission module are all connected to the ultra-...

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Abstract

The invention discloses an ultra-low power consumption passive structural strain monitoring device, comprising a radio frequency front end, an ultra-low power consumption MCU, a strain detection module and a super-capacitor, wherein the radio frequency front end comprises a dipole antenna, a rectification voltage-multiplying voltage stabilization module, a demodulation and an emission module. The device can be embedded in a building structure to collect structural strain parameters, return structural strain change information to a reader in a wireless communication mode, and solve the problems of energy dependence and inconvenience of structural stain monitoring based on the wireless sensor network technology; in addition, the device does not need batteries for power supply, and can work for a long time without extra maintenance.

Description

technical field [0001] The invention relates to structural health monitoring technology, in particular to an ultra-low power consumption passive passive structure strain monitoring device. Background technique [0002] The health status of urban infrastructure is closely related to social public safety and people's lives and properties. These important infrastructures are inevitably threatened by many factors such as environmental erosion, earthquakes, and man-made disasters. Structural health monitoring can monitor buildings. Conduct long-term monitoring and analysis of the structural status, effectively evaluate its safety performance, fully grasp the structural health status and provide early warning for emergencies. The stress on a structure is of great importance to the health of the structure. [0003] Generally, structural health monitoring refers to the use of sensing elements integrated in the structure to obtain information related to the health of the structure i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/16
Inventor 陈积明陈敏张茜史治国
Owner ZHEJIANG UNIV
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