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Low power consumption design method for wireless sensor network node

A technology of wireless sensors and network nodes, applied in network topology, wireless communication, power management, etc., can solve the problem of low power consumption, and achieve low power consumption, reduce power consumption, and reduce ineffective power consumption. Effect

Inactive Publication Date: 2016-07-20
SHANGHAI UNIV
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Problems solved by technology

[0004] Existing low-power technologies are mostly aimed at the transport layer, network layer, and protocol layer, and have limited conditions, only to reduce specific power consumption in specific situations, which makes the effect of low power consumption discounted

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  • Low power consumption design method for wireless sensor network node
  • Low power consumption design method for wireless sensor network node
  • Low power consumption design method for wireless sensor network node

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Embodiment Construction

[0039] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0040] Such as figure 1 As shown, through the in-depth analysis of the energy consumption of the wireless sensor network, a kind of power consumption that is neglected by people and can often appear is found, mainly the waiting power consumption in the circuit operation. There are four time periods in the signal receiving and processing process of the wireless sensor network, namely the wireless wake-up time period, the wireless receiving time period, the data format judgment time period and the physical layer processing time period. These four periods correspond to four levels of circuit power consumption. By monitoring the circuit signals, controlling these four power consumptions and reducing waiting time, the purpose of low power consumption can be achieved.

[0041] Add a low-power timer during the wireless wake-up period of the node. ...

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Abstract

The invention discloses a low power consumption design method for a wireless sensor network node. A detection method comprises the steps of carrying out optimization processing on four time periods in a signal receiving and processing procedure of the wireless sensor network node, namely a wireless awakening time period, a wireless receiving time period, a data format judgment time period and a physical layer processing time period, and shortening the waiting times of the stages according to the sequence of start times to achieve a low power consumption effect. An implementation method comprises the steps of identifying and judging a data preamble, judging a carrier field strength indication RSSI threshold, judging a frame format to start according to the time periods, and finally transmitting valid data to an MCU for processing. By adopting the method disclosed by the invention, the interference of invalid data can be avoided, the implementation is simple, the low power consumption effect is good, the integrity of the data is guaranteed, and the life cycle of the wireless node is greatly prolonged.

Description

technical field [0001] The invention relates to a low power consumption design method of a wireless sensor network node. Background technique [0002] The low power consumption of the wireless sensor network is mainly realized through the design improvement of the network protocol, the efficient management of the wireless sensor network structure, the optimization of the network topology, the improvement of the application support service, etc., which can reduce the system power consumption and ensure the minimum power operation of the system . The power consumption of wireless sensor network mainly includes node power consumption, communication power consumption, processing power consumption and network power consumption. The ineffective power consumption of nodes can be reduced by developing miniaturized, low-power, and low-cost sensor nodes; by designing new network communication protocols and optimizing the protocol formats of the transport layer and network layer, it c...

Claims

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Application Information

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IPC IPC(8): H04W52/02H04W84/18
CPCH04W52/0209H04W84/18Y02D30/70
Inventor 张雪凡李成王玉盟黄庆
Owner SHANGHAI UNIV
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