Energy-saving MAC and routing cross-layer method for linear monitoring network

Abstract

The invention relates to an energy-saving MAC and routing cross-layer method for a linear monitoring network. The method comprises that: all nodes are configured with a logic ID in advance according to the physical positions; the communication is initiated by an end node, the MAC protocol is realized based on a sleep wakeup mechanism, the wakeup method is group wakeup, the wakened nodes automatically judge whether to sleep or continuously monitor according to the ID in the received data and the directional information, and a routing layer automatically selects the next hop according to the last hop node information in the MAC layer data when the node selects the next hop node; the neighbor node can jump the hop to respond when the called node has no response; and the current node fuses all the past node data and transmits the data to the next stage so as to reduce the transmission of useless information and improve the efficiency of energy consumption. The method can be widely applied to the places of pipeline survey, road survey, fuel gas wireless network acquisition systems and the like, and has the advantages of saving the energy of the survey node, prolonging the life cycle of the node and effectively improving the work efficiency.

Description

technical field [0001] The invention relates to an energy-saving MAC (Media Access Control) and routing cross-layer method for a linear monitoring network. The method not only ensures the robustness and reliability of transmission, but also realizes low energy consumption and long life of nodes. Especially suitable for physical linear monitoring network and occasions where the battery is not easy to replace. Background technique [0002] At present, there are a large number of methods in each layer of the low-speed wireless networking field, including MAC implementations such as typical 802.15.4, SMAC, TMAC, etc., and routing implementations such as AODV, DD, LEACH, etc. However, for linear monitoring network applications, simple combination of two layers cannot achieve optimal energy consumption and reliability, especially for nodes with limited energy and difficult to replace batteries, which may lead to early death of nodes and paralysis of the entire network. [0003] I...

AI Technical Summary

Problems solved by technology

However, for linear monitoring network applications, simple combination of two layers cannot achieve optimal energy consumption and reliability, especially for nodes with limited energy and difficult to replace batteries, which may cause premature death of nodes and lead to paralysis of the entire network

[0003] In addition, the relatively mature Zigbee protocol for wireless networking is currently used in the industry. It is mainly adapted to the star structure. Its coordinating node synchronizes the surrounding nodes through the superframe structure to achieve communication. In a linear situation, it is impossible to use one center to synchronize all node, so the mature Zigbee protocol can not be used directly to achieve the desired effect. In summary, we believe that it is more and more used in today's linear occasions such as pipeline monitoring, road monitoring, and gas network meter reading. Propose a targeted, adaptive approach

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