Method for operating a wireless sensor network, and sensor node

A sensor node and wireless sensor technology, applied in wireless communication, wireless architecture, instruments, etc., can solve the problems of wasting man-hours and not being able to do it on site

Inactive Publication Date: 2011-02-16
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Often, maintenance measures require reconfiguring repaired or replaced sensor nodes for the first time, however this cannot be done in the field due to the problems specified above
In large-scale sensor networks, for example in large industrial plants, this can lead to maintenance technicians having to travel long distances in order to configure sensor nodes outside the radio range of other sensor nodes, thereby unnecessary waste working hours

Method used

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  • Method for operating a wireless sensor network, and sensor node
  • Method for operating a wireless sensor network, and sensor node
  • Method for operating a wireless sensor network, and sensor node

Examples

Experimental program
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Embodiment Construction

[0041] exist figure 1 The sensor network indicated in general by the reference numeral 1 is schematically shown in . The sensor network 1 includes a plurality of sensor nodes with the same structure, where figure 1 Only three adjacent sensor nodes 2-4 are shown in . The sensor nodes 2-4 are installed at various places such as industrial large-scale equipment, which in figure 1 not shown in detail.

[0042] Each sensor node 2 - 4 contains in a housing 18 a plurality of measuring probes (sensors) 5 which are able to detect measured values ​​of physical or technical measured variables—here, for example, air temperature and air humidity. Each sensor node 2-4 also contains a microprocessor-based programmable control device (CPU) 7 for controlling the sensor node functions. CPU 7 and two storage devices - a volatile working memory (RAM = R andom A access M emory, random access memory) 8 and a non-volatile flash memory 9-shared role. Each sensor node 2 - 4 is also equipped wi...

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PUM

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Abstract

The invention relates to a method for operating a wireless sensor network (1) having a plurality of sensor nodes (2-4) which are suitably set up for data transmission by means of non-directional radio transmission, in which a selection set containing at least one sensor node (2) can be selectively changed from a first operating state to a second operating state by means of a spatially delimited first operating state control signal (17), wherein the sensor nodes (2-4) cannot receive or at least cannot process control data by means of non-directional radio transmission in the first operating state and can receive and process control data by means of non-directional radio transmission in the second operating state. The invention also relates to a sensor node which is suitably set up to carry out the method.

Description

technical field [0001] The invention lies in the field of network technology and relates to a method for operating a wireless sensor network and to a sensor node of the sensor network suitably set up for carrying out the method. Background technique [0002] In complex environments such as industrial plants, power stations, ships, aircraft and automobiles, sensor networks are increasingly used for a wide variety of monitoring tasks (“monitoring”). In practice, wireless sensor networks with a plurality of wirelessly communicating sensor nodes have proven to be particularly practical, since the sensor nodes can be freely selectively placed at different locations. [0003] Wireless sensor networks are managed by a network management system, usually implemented in a control station ("base station") that communicates wirelessly with the sensor nodes. The data detected by the sensor nodes are transmitted to the control station and can be transmitted from there to a data processin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C17/02G08C17/00
CPCH04Q2209/40G01D21/00H04L29/08567H04L67/125H04Q9/00H04Q2209/883H04W52/0219
Inventor C·尼德迈尔N·维卡里J·瓦勒夫斯基A·蔡德勒
Owner SIEMENS AG
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