Low-power-consumption power supply system for wireless sensor network

Abstract

The invention relates to a low-power-consumption power supply system for a wireless sensor network. A single-chip microcomputer enters in different work states according to the data request state of a gateway, a data collecting front end and a signal conditioning module are controlled to be powered on and off, under the condition of having no data requests, the single-chip microcomputer sleeps and enters in a low-power-consumption mode, and the whole data collecting front end and the signal conditioning module are disconnected with a power supply. When data request signals are received by a wireless receiving module, the wireless data receiving module rouses the single-chip microcomputer to enter in a data collecting state, data are sent to the wireless gateway after being collected, and when no continuous data requests exist, the single-chip microcomputer enters in the sleep state again until the next data requests come. According to the data request state of the gateway in the wireless sensor network, the single-chip microcomputer works in the two modes of sleep and data collecting, the data collecting front end is controlled to be powered on and off according to the request state of the gateway, and then the aim of lowering power consumption is achieved.

Description

technical field [0001] The invention relates to the field of wireless power supply, in particular to a low power consumption power supply system for a wireless sensor network. Background technique [0002] At present, wireless sensor networks are more and more used in environmental monitoring, cultural relics protection, modern agriculture, wild animal protection, smart home and smart transportation and other fields. However, due to the restriction of the power supply form (battery power supply), power consumption has always been a key issue restricting the application and promotion of wireless sensor networks. In most cases, the network does not need to continuously collect and send data, and there is no need to keep the entire node in the data collection state. Therefore, it is relatively important to invent a low-power supply mode for wireless sensor network nodes. Strong application value. [0003] At present, people's research on low-power supply of wireless sensor no...

AI Technical Summary

Problems solved by technology

There are relatively few studies on how to use the controller to control the data acquisition front-end to turn on the circuit when there is a data request, and turn off the circuit when there is no data request, so as to reduce the power consumption of the wireless node as much as possible.

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