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

A monitoring network and linear technology, which is applied in the field of physical linear monitoring network and where the battery is not easy to replace, can solve the problems of premature node death, limited node energy, network paralysis, etc. Effect

Active Publication Date: 2010-06-16
SHANGHAI UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 coo

Method used

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

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Embodiment 1

[0024] Embodiment 1: This is used for energy-saving MAC and routing of linear monitoring networks. First, all nodes need to be pre-configured with logical IDs according to their physical locations; communication is initiated by end nodes, and the MAC protocol is implemented based on the sleep wake-up mechanism, and the wake-up method is Group call, the awakened node can automatically judge whether to sleep or continue listening according to the ID and direction information in the received data. When the node selects the next hop node, the routing layer automatically selects the next hop node according to the previous hop node information in the MAC layer data. One hop; neighbor nodes can respond across hops when there is no reply from the called node; the current node integrates all previous node data and transmits it to the next level, thereby reducing sending useless information.

Embodiment 2

[0025] Embodiment Two: This embodiment is the same as Embodiment Two, and the special feature is that the specific operation steps are as follows:

[0026] 1) First, configure the logical ID of the node according to its physical location in the network, and use the logical ID for identification in communication. According to the position in the linear network, its logical ID is incremented sequentially. The node at the end of the network, that is, the node with the smallest ID number, also acts as an initiating node in terms of logical functions, and regularly initiates data collection signals. The node in the middle of the network also acts as a routing node when performing data collection functions. All The collected data is converged one by one in the linear network, and reaches the other terminal (with the largest ID number) converging node, that is, this terminal node acts as data collection and data collection function of all nodes at the same time, and also transmits the...

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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...

Claims

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Application Information

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IPC IPC(8): H04W24/04H04W52/46
CPCY02B60/50
Inventor 严军朱渝林沈明华张雪凡
Owner SHANGHAI UNIV
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