Method for collecting and routing data in wireless sensor network and device thereof

A wireless sensor and network data technology, applied in network topology, wireless communication, error prevention/detection using the return channel, etc., can solve the problems of nodes not considering resource constraints, blind resource utilization, and long cluster head generation time
CN101635975AInactive Publication Date: 2010-01-27NORTHWEST UNIV(CN)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHWEST UNIV(CN)
Publication Date
2010-01-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method for collecting and routing data in a wireless sensor network and a device thereof. The method comprises a route establishment stage, a sleep scheduling generation stage and a data collection stage, and comprises the following steps: sending out a hello packet by a base station, receiving the hello packet by a node, establishing a neighbor table, and broadcasting the hello packet; broadcasting the hello packet or a route repair packet by the node at random time; updating the neighbor table; monitoring a wireless channel by the node, executing the action to transmit an environmental data packet or update neighbor table information or sending the hello packet according to the type of the received data packets after a neighbor node wakes. In the invention, a sleep cycle of the neighbor node is determined by the difference between the received hello packet and self monitoring time based on an asynchronous sleep scheduling mechanism, thus preventing overhead resulted from time synchronization; and the method can help repair local route during a short time and adaptively repair the problem of failed sending caused by offset accumulation of a timer.
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Description

technical field

[0001] The present invention relates to the technical field of wireless sensor networks, in particular to a data collection and routing method and device for wireless sensor networks. Background technique

[0002] In recent years, the wireless sensor network has developed rapidly. The wireless sensor network is composed of multiple sensor nodes deployed in a certain area, and forms a multi-hop network system through wireless communication. Sent to users or watchers. It has broad application prospects: environmental monitoring and forecasting, medical care, smart home, monitoring, transportation, exploration, logistics management and safety testing, etc.

[0003] The routing protocol is the core technology of the network layer in the wireless sensor network, and it is also one of the hotspots of research at home and abroad. Above all, maximize the network life cycle as much as possible. The current routing protocols of wireless sensor networks are mainly di...

Claims

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