Wireless sensor and actuator network reliable efficient routing method

Abstract

The invention belongs to the technical fled of wireless sensor and actuator network, and discloses a wireless sensor and actuator network reliable efficient routing method. The method includes that the Kautz network topology is carried out; a network architecture is selected; a neighbor Kautz node periodically sends HELLO packets to detect the status of the neighbor Kautz node; and for the network architecture, after the network is divided into a plurality of Kautz units, for cross-unit data transmission, the actuator uses a greedy routing method to send the data packets to the unit having the ID close to the target unit ID, and known from the allocation of the previous unit IDs, the positions of the units having close IDs are close. By means of node IDs, the shortest path can be rapidly selected; the method ensures that the network maintains routing path availability at an acceptable level in the link failure event; and compared with the REFER algorithm, the experiment result shows that the real-timeness, fault tolerance, and reliability performances are better than REFER.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor and actuator networks, in particular to a reliable and efficient routing method for wireless sensor and actuator networks. Background technique [0002] The current development of computer, communication and perception technology has led to the emergence of Wireless Sensor and Actuator Networks (WSANs). Wireless sensor and actuator network is a kind of wireless sensor network. The wireless sensor and actuator network is composed of a large number of heterogeneous sensor nodes and actuators that can respond to the perceived physical information. Widely used in industrial processes, it is composed of sensor nodes with ordinary low energy and performance resources and actuators with performance and capacity far exceeding ordinary nodes. In (WSAN), the sensor nodes coordinate and establish a communication network in the detection area, the sensor nodes sense the data, and periodically or spon...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the problems existing in the existing technology are: the current wireless sensor network uses reactive routing, the start-up delay is relatively large, and real-time performance cannot be guaranteed, which has a particularly great impact on delay-sensitive applications; With the maturity of network technology, users have more demands for multimedia information services in the wireless network environment, and the real-time performance cannot be guaranteed, so that strict QoS requirements cannot be guaranteed; on the other hand, for industrial automation process applications, the real-time performance of information transmission There is no guarantee, the consequence is the interruption of the automation process or even more serious losses

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