Lower power consumption wireless sensor network node device capable of monitoring vibration continuously

A technology of wireless sensors and network nodes, applied in measuring devices, sustainable buildings, climate sustainability, etc., can solve the problems of unrealized energy saving of power modules, and achieve the effect of reducing power consumption

Inactive Publication Date: 2010-12-01
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the nodes are directly powered by batteries, and some typical node platforms are only equipped with linear voltage regulators to maintain the stable voltage output of the batteries, without realizing the energy saving of power modules

Method used

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  • Lower power consumption wireless sensor network node device capable of monitoring vibration continuously
  • Lower power consumption wireless sensor network node device capable of monitoring vibration continuously
  • Lower power consumption wireless sensor network node device capable of monitoring vibration continuously

Examples

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Embodiment 1

[0032] Such as figure 1 The structure block diagram of the low-power wireless sensor network node device that can continuously monitor vibration is shown, which includes a microprocessor, a sensor module, a communication module and a power supply module. The microprocessor is the core of the node, and other modules are connected to the microprocessor and controlled by the microprocessor.

[0033] Such as figure 2 The shown device embodiment of the present invention is a self-source type sensor amplification conditioning circuit diagram. The self-source piezoelectric vibration sensor MiniSense 100 (take the vertical direction as an example) amplification and conditioning circuit includes a rectifier bridge, a low-power comparator TLV3492 and a low-power integrated operational amplifier TLV2402. The voltage output of the piezoelectric vibrating element is firstly rectified by the rectifier bridge, and then connected to an input terminal of the low-power comparator U13C and th...

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Abstract

The invention provides a lower power consumption wireless sensor network node device capable of monitoring vibration continuously, wherein a power supply module, a communication module and a sensor module are connected with a microprocessor. The power supply module is structurally characterized in that the output ends of a solar battery and a lithium battery are connected with three input ends ofa first analogue switch respectively. The output end of the first analogue switch is connected with the power supply interface of the microprocessor. The signal output end of a self-sourced vibrationsensor is respectively connected with the signal input end and the interruption port of the microprocessor through a first operational amplifier and a comparator. The signal output end of an external-sourced acceleration sensor is connected with the other signal input end of the microprocessor through a second operational amplifier and the power supply end of the external-sourced acceleration sensor is controlled by the second analogue switch of the microprocessor and connected with the current power supply output end selected by the node. The device has the advantages of obvious energy-saving effect and can ensure the long-term continuous work of the network node of the wireless sensor.

Description

technical field [0001] The technology of the invention relates to a low-power wireless sensor network node device that can continuously monitor vibration, and is suitable for application occasions that require real-time online monitoring, such as state monitoring and target detection. technical background [0002] A wireless sensor network is an ad hoc network composed of a large number of low-cost sensor nodes. Nodes have wireless communication capabilities, not only responsible for the collection and processing of environmental information, but also receive and send data of themselves and the network, but their energy and other resources are limited. Since the power supply battery of the node is inconvenient to replace, maximum energy saving is the primary principle of node design. The wireless sensor network node is composed of four modules such as microprocessor, wireless communication, sensor and power supply. It is generally believed that the power consumption of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W84/18G01H11/08
CPCY02B60/50Y02D30/70
Inventor 刘少强洪丹龙樊晓平陈磊
Owner CENT SOUTH UNIV
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