Self-energy-taking wireless temperature sensor and achieving method thereof

Abstract

The invention discloses a self-energy-taking wireless temperature sensor and an achieving method thereof. The sensor comprises a self-energy-taking wireless temperature sensing chip and an electric field coupling polar plate, wherein the chip comprises a microcontroller, a self-energy-taking module, a temperature sensing module, a storage and a wireless communication module, the microcontroller is respectively communicated with the self-energy-taking module, the temperature sensing module, the storage and the wireless communication module, and the temperature sensing module is connected with the storage. The microcontroller, the self-energy-taking module, the temperature sensing module, the storage and the wireless communication module are integrated on one chip, the self-energy-taking module collects a displacement current generated by equivalent capacitance between the electric field coupling polar plate and a high voltage electric device under the alternating-current high voltage, and the displacement current is converted into the direct current to enable the chip to be powered. According to the self-energy-taking wireless temperature sensor, energy taking is achieved by sensing an alternating high-voltage electric field, the self-energy-taking wireless temperature sensor belongs to a self-energized system, the self-energy-taking wireless temperature sensor is integrated on the chip, the size of the sensor is reduced, the cost is reduced, the reliability is improved, and the self-energy-taking wireless temperature sensor has great significance in ensuring safe and reliable operation of a power grid.

Description

technical field [0001] The invention belongs to the field of information sensing integration in smart grids, and in particular relates to a self-energy-taking wireless temperature sensor and an implementation method thereof. Background technique [0002] With the rapid development of China's economy, the demand for electric energy has also increased geometrically. As important equipment in electric energy transmission and conversion, such as high-voltage switchgear, bus joints, outdoor knife switches, etc., during long-term operation, the electric shock of the switch The parts connected to the busbar are heated due to aging or excessive contact resistance. The temperature detection and alarm of these heating parts can avoid the occurrence of fire accidents, reduce economic losses and social impacts such as large-scale power outages. [0003] At present, the conventional temperature measurement method for high-voltage switchgear in substations in power systems relies on manpo...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention proposes a self-powered wireless temperature sensor and its implementation method, which solves the technical problems existing in the prior art such as difficult power supply, large volume, and limited service life.

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