Method for implementing wireless sensor network query, and data return method

A wireless sensor and sensor network technology, applied in the field of control signals or similar signals, and the transmission of measured values, can solve the problems of increased probability of node transmission failure and retransmission, communication collision between nodes, and control signal overhead that cannot be ignored. Probability of collisions, avoiding routing loops, and reducing energy costs

Active Publication Date: 2008-12-10
汉摩尼(江苏)光电科技有限公司
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Problems solved by technology

[0005] However, since the HEED protocol adopts a more complex cluster head election algorithm in the whole network, the overhead of control signals cannot be ignored
[0006] Moreover, the HEED protocol, like other protocols, allows the cluster head to use a higher level of communication to communicate across clusters. When nodes are deployed intensively, it will cause inter-node communication to occur The possibility of collision increases, resulting in an increase in the probability of node sending failure and retransmission

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  • Method for implementing wireless sensor network query, and data return method
  • Method for implementing wireless sensor network query, and data return method
  • Method for implementing wireless sensor network query, and data return method

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0033] The invention provides a method for realizing wireless sensor network query, such as figure 2 shown, including the following steps:

[0034] 100. The user sets a query request, and the query request includes a query area and a query task in the sensor network;

[0035] When the user wants to query data in a specified area, the user sends a query request to the base station. The query request includes query tasks, query areas, preset values, preset parameters, energy thresholds, query time, query modes, Sampling interval, data fusion method and other attributes.

[0036] After receiving the query request, the base station first authenticates and analyzes the query request; then, assigns a unique identification (ID) number to each query, and the user can modify the query parameters or delete the query according to the ID number; then, the base s...

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Abstract

The invention discloses a method of implementing wireless sensor network query and a method of transmitting data back, wherein the method of network query includes the following steps: a node in the sensor network receives the query request set by the user, the query request at least includes a query area and a query task; the nodes in the query area form a cluster structure, the cluster head of the cluster structure inosculates the sensitive data which are collected by the cluster members and correspond to the query task; the inosculated sensitive data are returned to the user. The expenditure of the control signals in the total network range can be reduced by adopting the method.

Description

technical field [0001] The invention relates to a method and system for transmitting measured values, control signals or similar signals, in particular to a method for realizing wireless sensor network query and a method for returning data. 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 purpose is to collaboratively monitor, collect and process various environments in the network distribution area in real time Or monitor the information of the object, and transmit it to the user who needs the information. Therefore, wireless sensor networks have very broad application prospects in scientific research, disaster monitoring, agricultural production, urban transportation, and daily life. [0003] In practical applications, users usually need to query all or part of the data perceived by nodes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/56
Inventor 胡昀于峰崎
Owner 汉摩尼(江苏)光电科技有限公司
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