Method for establishing stepped Ad-Hoc network route used for wireless three-meter reading

Abstract

The invention relates to a method for establishing a stepped Ad-Hoc network route used for wireless three-meter reading, and the method comprises two processes, namely establishing start and responding transmission. An establishing request is initiated by a root node when the start is established; upper-stage nodes are selected through a power control mechanism and a power monitoring mechanism, so as to establish a one-way route quickly; networking nodes are not involved in the establishment through a method of establishing processes and feature codes by a hop-by-hop synchronous stepped route, thereby avoiding routing loops; after the one-way route is established, the phase of transmission responding is carried out; the communication coverage of lower-stage nodes is far greater than that of the upper-stage nodes through the power control mechanism, thereby ensuring an unobstructed two-way link in under the condition of no hand shaking; and in the data transmission process, the power consumption of the whole network is balanced through the alternation of the upper-stage nodes. By utilizing the method, the route establishment and the data transmission are completed fast in an energy-conservation way under the conditions that the network load is lighter, and the varying frequency of a topological structure is low, therefore, the route established by the method is suitable for a wireless three-meter reading system.

Description

technical field [0001] The invention belongs to the field of electronic technology, and relates to a method for establishing a ladder-type ad-hoc network routing for wireless centralized reading of three meters (electricity meters, water meters, and gas meters). Background technique [0002] Wireless ad hoc network is a distributed wireless multi-hop network composed of a group of nodes with routing functions. Its node transmission range is limited, and when the source node sends data to the destination node, it usually needs other nodes to provide routing and relay functions. All nodes in the network and the wireless channels between nodes constitute the communication topology of the network. The topology changes brought about by the addition and deletion of nodes will cause changes in the communication forwarding path. Therefore, wireless ad hoc networks need to use dynamic routing algorithms to adapt to changes in topology and adjust routing. [0003] According to diff...

AI Technical Summary

Problems solved by technology

Excessive protocol overhead and frequent route maintenance of traditional routing will cause excessive useless energy loss and shorten the service life of the network

The dependence on fixed relay nodes will cause the energy consumption of individual nodes to accelerate

Traditional active routing, on-demand routing and hybrid routing are not suitable for the occasion of three-table wireless centralized reading

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