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Ultra-low-power design method for wireless sensor network node

A wireless sensor, network node technology, applied in network topology, wireless communication, power management and other directions, can solve problems such as no clear definition

Inactive Publication Date: 2011-02-02
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are many research results of low power consumption technology, but there is no clear definition of the expected value of ultra-low power consumption technology at home and abroad. Generally, the power consumption parameters of MSP430 series microcontrollers accepted by the industry are used as reference values.

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  • Ultra-low-power design method for wireless sensor network node
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  • Ultra-low-power design method for wireless sensor network node

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Embodiment 1

[0057]In order to reflect the energy-saving effect, this ultra-low power consumption design method is applied to the improved design of the MICA2 node (including vibration sensor and power board). Therefore, the embodiment node has the same performance requirements as the MICA2 node, and by applying the improved design of this design method, its average power consumption should reach an ultra-low power consumption level, that is, the average power consumption under continuous operation is less than 1mW. When using this ultra-low power consumption design method for node improvement design, the main module structure and functions of the MICA2 node, such as external memory, external source integrated acceleration sensor and wireless communication device, will not be changed. as per figure 1 The flow of the node ultra-low power consumption design method shown in the present invention, the specific application steps are as follows:

[0058] 1. The embodiment node has the same perf...

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Abstract

The invention provides an ultra-low-power design method for a wireless sensor network node. The method comprises the steps of: confirming a permissible current of each module according to the sequence of a wireless communicator, a micro processor and a sensor based on an average power consumption of expected nodes and modules and a duty ratio demand of the wireless communicator, the micro processor and the sensor, designing an implement scheme for each module according to the selected parts, designing an intelligent power supply module capable of maintaining high use efficiency according to the loading scope of different modules so as to decrease the power consumption of each component of the node, and designing the sequence of cooperative work of the modules according to the practical application and controlling the modules working based on the sequence by the micro processor so as to decrease the peak point current of the node.

Description

technical field [0001] The technology of the present invention relates to a method for designing ultra-low power consumption of wireless sensor network nodes. The method is generally applicable to the design of low power consumption of nodes, and is mainly used in application occasions requiring continuous online monitoring such as state monitoring and target detection. technical background [0002] A wireless sensor network is an ad hoc network composed of a large number of low-cost sensor nodes. Nodes have wireless communication capabilities, not only responsible for the collection and processing of environmental information, but also receive and send data of themselves and the network, but their energy and other resources are limited. Since the power supply battery of the node is inconvenient to replace, maximum energy saving is the primary principle of node design. A wireless sensor network node generally consists of four modules: processor, wireless communication, sens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04W84/18
CPCY02B60/50Y02D30/70
Inventor 刘少强洪丹龙樊晓平李勇周陈磊
Owner CENT SOUTH UNIV
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