A self-energy wireless temperature sensor and its implementation method

Abstract

The present invention is a self-energy wireless temperature sensor and its implementation method. The sensor includes a self-energy wireless temperature sensing chip and an electric field coupling plate; the chip includes a microcontroller, a self-energy module, a temperature sensing module, and a memory. and a wireless communication module; the microcontroller communicates with the self-energy module, the temperature sensing module, the memory and the wireless communication module respectively; the temperature sensing module is connected with the memory. The invention integrates a microcontroller, a self-energy module, a temperature sensing module, a memory, and a wireless communication module on one chip, and collects the equivalent capacitance between the electric field coupling plate and the high-voltage charged device through the self-energy module. The displacement current generated under high voltage is converted into DC to power the chip. The invention obtains energy by inducing an alternating high-voltage electric field, which belongs to a self-powered system, and the invention is integrated on a chip, which reduces the volume of the sensor, reduces the cost, and improves reliability, which is of great significance for ensuring the safe and reliable operation of the 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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