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Sensor dormancy mechanism integrating dynamic voltage scaling and dynamic energy management

A dynamic voltage regulation, dynamic energy technology, applied in power management, energy-saving ICT, electrical components, etc., can solve problems such as small time interval

Inactive Publication Date: 2010-12-29
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0010] In order to solve the problem that the node will always be in the working state when the time interval between events is too small, this invention proposes a sensor sleep mechanism that integrates dynamic voltage regulation and dynamic energy management

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  • Sensor dormancy mechanism integrating dynamic voltage scaling and dynamic energy management
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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0033] figure 1 It is a flow chart of a sensor sleep mechanism that integrates dynamic voltage regulation and dynamic energy management according to Embodiment 1 of the present invention. figure 1 In, the realization process of the present invention comprises the following steps:

[0034] Step 101. After a certain sensor node perceives an event, it predicts the occurrence time of the next event based on the probability of the occurrence of the event.

[0035] Step 102. Determine whether it is a redundant node with repeated coverage, if yes, execute step 103; otherwise, skip to step 106.

[0036] Step 103: The node that is currently aware of the event sends a query message to the rest of the redundant nodes that have the same sensing ar...

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Abstract

The invention discloses a sensor dormancy mechanism integrating dynamic voltage scaling and dynamic energy management, belonging to the technical field of wireless sensor network application. The mechanism expands the dynamic energy management strategy of a sensor node and adds a low-voltage operation mode integrating the dynamic voltage scaling to the dormancy mode. When time interval of event occurrence can not satisfy the optimized time threshold for entering into the dormancy mode, the purpose of lowering power dissipation is achieved by lowering processor operating voltage. The invention can effectively lower power dissipation of the wireless sensor network based on the multi-hops route mode and prolong the service life of the sensor network.

Description

technical field [0001] The invention relates to the technical field of wireless sensor network applications, in particular to a sensor sleep mechanism integrating dynamic voltage regulation and dynamic energy management. Background technique [0002] Wireless sensor network integrates technologies such as sensors, wireless communication, embedded computing, micro-electromechanical systems and information processing, through sensor nodes cooperatively perceive, collect, process and transmit the information of sensing objects in the monitoring area, and complete the monitoring of the target area. Purpose. Different from the traditional network, the wireless sensor network has a larger number of nodes (thousands or even tens of thousands), which are usually densely distributed in harsh environments or unmanned areas. There are a large number of redundant nodes with repeated coverage in the network. The monitoring areas of the nodes are the same, and these redundant nodes are u...

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Application Information

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IPC IPC(8): H04W52/02H04W84/18
CPCY02B60/50Y02D30/70
Inventor 孙咏梅王照宇纪越峰
Owner BEIJING UNIV OF POSTS & TELECOMM
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