Method and apparatus for controlling energy expanding of sensor network nodes

摘要

A method and apparatus for controlling energy expended by sensor network nodes is disclosed. The method comprises steps of acquiring energy information that is indicative of an energy status of a node in the network and adjusting at least one data transmission parameter according to the energy information. In a wireless network where the communication capacity and power energy of sensor nodes are limited, the invention provides the capability of efficiently utilizing the network resources, conserving power consumption of sensor nodes, and prolonging the life of the sensor network.

主权项

1. A method for conserving energy expended by a communications network including nodes having limited supplies of energy said method comprising the steps of:
(a) acquiring energy information indicative of an energy status of one of said nodes; and (b) according to the energy information, conserving energy expended by said node by adjusting at least one of:
(i) a timeout before a transmission device repeats a transmission of data to said node; and(ii) a limit on a number of times that the data will be retransmitted to said node, where said adjustment decreases the timeout in response to an increase of the energy supply to said node and increases the timeout in response to a decrease of said energy supply.