Wireless energy collection type wireless sensor network node

Abstract

The invention discloses a wireless energy collection type wireless sensor network node specifically comprising a wireless energy collection module, a charge and discharge management module, a receiving and sending front end, a modulation circuit and a microprocessor. The wireless sensor network node provides energy for the microprocessor and a front end receiving and sending circuit of the wireless sensor network node in a wireless energy collection mode; moreover, Miller encoding and extension encoding thereof in the ISO / IEC18000-6C protocol are achieved by using an assembly language on the basis of the microprocessor, all functions of the ISO / IEC18000-6C protocol are achieved, that is, an RFID tag is achieved, a sensing command format is defined, and a sensing function is provided; and remote communication of an active tag can be achieved, the microprocessor continuously works due to a wireless charging mode, the defects of short service life of the active tag and frequent battery change are overcome, reference can be provided for the layout of the wireless sensor network, the possibility of realizing fast implementation can be provided for the research on the RFID algorithm, andthe development periods are reduced.

Description

technical field [0001] The invention belongs to the technical field of communication, relates to a distributed sensor network, in particular to a wireless energy collection type wireless sensor network node. Background technique [0002] A wireless sensor network (Wireless Sensor Networks, WSN) is a distributed sensor network, and its nodes can perceive sensory information in the external environment. The wireless sensor network realizes the functions of data collection, processing and transmission. The wireless sensor network is composed of a large number of sensors, which can collect information including earthquake, electromagnetic, temperature, humidity, pressure, object size, moving direction and speed. As one of the top ten technologies in the world in the future, wireless sensor networks are attracting more and more attention, and have broad application markets in many fields such as military, medical, household, and environmental monitoring. [0003] Wireless senso...

AI Technical Summary

Problems solved by technology

However, the power supply of the active tag battery is limited, and the battery needs to be replaced frequently, which increases the maintenance cost, and due to the limitations of some special environments, it is impossible to replace the battery of some tag nodes, but the wireless sensor network requires a long enough survival time, so Battery power is the Achilles heel of wireless sensor networks

Passive tags cannot actively initiate communication, and provide few functions, and the communication distance is short, so it is difficult to meet the intensive work requirements of wireless sensor networks

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