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Route switching method for implementing wireless sensor network data query

A wireless sensor and sensor network technology, applied in wireless network protocol, network topology, wireless communication and other directions, can solve the problem of not considering data query and so on

Active Publication Date: 2009-07-29
珠海中科先进技术研究院有限公司
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Problems solved by technology

Similarly, a large number of routing protocols do not consider data query

Method used

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  • Route switching method for implementing wireless sensor network data query
  • Route switching method for implementing wireless sensor network data query
  • Route switching method for implementing wireless sensor network data query

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] The invention provides a method and system for realizing wireless sensor network routing switching based on data query and a network density query method. The processing process of the traditional wireless sensor network data query system is as follows: figure 1 As shown: the user broadcasts the query command to the wireless sensor network through the PC; the node collects the data after receiving the query command; the data is returned to the base station by using the routing protocol. A routing algorithm is used to process all query requests. The key innovation of the present invention is to use the cross-layer optimization technology to improve the performance of the wireless sensor network query system, such as figure 2 shown. According to the query semantics and network status, the routing protocol can be selected autonomously, which can...

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Abstract

The invention discloses a method and system for realizing data query route switching in wireless sensor network and network density collecting method. Wherein, the route switching method comprises: base station node receiving query request set by user; base station sending network density query instruction; base station integrating the classes of the user inputted query instruction after obtaining the network density information, and selecting route protocol to process current query; attaching the route information into the query instruction and sending the query instruction to sensor network; the sensor node in the network receiving the query instruction, then switching into the corresponding route protocol according to the route information attached in the query instruction; the network networking according to the route protocol, and returning the query result to the base station. Applying the method and system can reduce the energy consumption in wireless sensor network data query, and prolong the network life-cycle.

Description

【Technical field】 [0001] The invention relates to wireless sensor network technology, in particular to a data query method and system of the wireless sensor network and routing switching. 【Background technique】 [0002] The wireless sensor network is composed of a large number of miniature sensor nodes arranged in the monitoring area, and forms a multi-hop self-organizing network system through wireless communication. Its main job is to collect, fuse, analyze, understand and Make decisions based on initial processing of data. All of these are based on data query, and most of the application systems based on wireless sensor networks are inseparable from sensory data query. [0003] Existing data query systems assume a tree-like network topology. For example, Couger of Cornell University and TinyDB of University of California, Berkeley both use a single routing protocol (MintRoute) to process all queries. Similarly, a large number of routing protocols do not consider data qu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W80/06H04L29/06H04W84/18
CPCY02B60/50Y02D30/70
Inventor 张足生于峰崎
Owner 珠海中科先进技术研究院有限公司
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