Wireless sensor task distribution method based on contract network

Abstract

The invention discloses a wireless sensor task distribution method based on a contract network. The wireless sensor task distribution method comprises the steps of: S101, clustering common nodes in the network, wherein the common nodes are classified into high-level nodes and low-level nodes; S102, generating a task by a task release node and performing a bidding process between the task release node and the high-level nodes; S103, releasing a bid inviting letter to the managed low-level nodes managed by the high-level node winning the bid; S104, judging whether the low-level nodes are in accordance with a requirement by the low-level nodes per se, determining whether to submit a tender according to the self conditions of the low-level nodes, if determining to submit the tender, turning to S105, or else, dropping out of the tender submission; S105, when the low-level nodes submit the tender, predicting conditions during bid winning and writing the conditions into biding documents; S106, judging whether a bid submission time limit is exceeded or not by the high-level node, if not, continuing receiving tender books, and if so, stopping the receiving of the tender books; and S107, selecting the proper low-level node by the high-level node, and granting the bidding document to the selected low-level node so as to complete a binding process. According to the invention, the energy consumption of the network and communication conflicts can be reduced, and the task completion rate and the completion quality can be increased.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a contract network-based wireless sensor task assignment method. Background technique [0002] Wireless sensor network is a kind of information acquisition and processing network technology, it has a wide range of applications and development prospects, and shows many advantages in military, industrial, commercial and other fields. Task assignment is an important problem that must be solved in wireless sensor networks, and it is also one of the hot issues in multi-agent systems. Wireless sensor networks have the characteristics of self-organization and dynamics, and at the same time have the problems of limited network communication resources and communication conflicts between nodes. This requires a reasonable design of its task allocation algorithm to reduce the energy consumption of network nodes, thereby Extend the life cycle of the node. [0003] There are...

AI Technical Summary

Problems solved by technology

[0008] In the traditional negotiation method, the manager invites bids for a large number of ordinary nodes, which not only greatly increases the energy consumption of the network, but also increases the management burden of the management nodes.

At the same time, when ordinary nodes bid, the current information of the node is written into the bidding document as the bid value, but the bidding process takes a certain amount of time. During this period, the state and performance of ordinary nodes may change. Only the nodes are considered The current state makes the scalar value not accurately reflect the condition of the node

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