Wireless temperature sensing system capable of collecting radio frequency energy and energy control method

Abstract

The invention discloses a wireless temperature sensing system capable of collecting radio frequency energy and an energy control method. The wireless temperature sensing system capable of collecting the radio frequency energy comprises a radio frequency emitting device, a central server and a plurality of temperature sensors. The radio frequency emitting device comprises a power control module and a radio frequency emitter, wherein the radio frequency emitter is connected with a power source through the power control module. The power control module is connected with the central server. The radio frequency emitting device transmits energy to the temperature sensors in a radio frequency mode. The central server judges the energy collection condition by the temperature sensors according to received data. When the energy collected by the temperature sensors is insufficient, the emission power of the radio frequency emitter is increased through the power control module, and normal work of the temperature sensors is maintained. When the power of the radio frequency emitter reaches the limit value, the radio frequency emitter reaches the Q state to operate, and data collected for multiple times are sent for one time. The wireless temperature sensing system capable of collecting the radio frequency energy has the certain self-adjusting capacity, can maintain the work state to the greatest extent, and is suitable for the fields, such as the electric power field, needing temperature measurement.

Description

technical field [0001] The invention relates to a wireless sensing device, in particular to a wireless temperature sensing system and an energy control method for collecting radio frequency energy without transmission cables. Background technique [0002] For the current wireless temperature measurement technology, most of the temperature measurement products are powered by batteries or CTs. There is a service life problem in the use of the battery. After a period of use, the battery needs to be replaced when the battery is exhausted, and the leakage and explosion of the battery will cause potential safety hazards. However, CT has the problems of large volume and inconvenient installation, and it will generate vibration and heat in the super-strong magnetic field, which will cause serious harm to power equipment. [0003] The State Intellectual Property Office of the People's Republic of China published a patent document with the authorized announcement number CN201145943Y ...

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly solves the technical problems of limited service life and narrow adaptable surface of wireless sensors existing in the prior art, and provides a wireless sensor with a very long service life, which can work in environments such as small temperature difference and no vibration, and has a certain Radio Frequency Energy Harvesting Wireless Temperature Sensing System and Energy Control Method with Self-adjusting Capability to Maintain Working State as Much as Possible

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