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Low power consumption wireless sensor node device and working method thereof

A wireless sensor node, low power consumption technology, applied in the direction of wireless communication, energy consumption reduction, signal transmission system, etc., can solve the problems of limited range of use, high power consumption, etc., to achieve short working duration, energy saving, The effect of saving power consumption

Active Publication Date: 2016-05-25
JIANGSU FUJITSU COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned technical problems of RTC-based low-power wireless sensor nodes in the prior art that need to synchronize the time and then communicate, the occupied time, large power consumption and limited range of use

Method used

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  • Low power consumption wireless sensor node device and working method thereof
  • Low power consumption wireless sensor node device and working method thereof
  • Low power consumption wireless sensor node device and working method thereof

Examples

Experimental program
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Embodiment 1

[0059] see figure 1 , the technical solution of the present invention provides a low-power general-purpose wireless sensor node, in figure 1 In the embodiment shown in , the node includes: a power supply 1, a clock timing module 2, a second power switching device 6, a first power switching device 7, a micro control module 8, a wireless transceiver module 11 and a sensor module 21; wherein, The power supply provides power to the first power switch device 7 , the second power switch device 6 and the input terminals of the clock timing module 2 . The clock timing module 2 further includes: a timing unit 23, a sampling timing unit 24 and a sending timing unit 25; the timing unit 23 is used for timing, and the sampling timing unit 24 is connected with the timing unit 23, and the sampling timing The unit 24 controls the second power switch device 6 to close when the timing unit 23 reaches the preset sampling time, and simultaneously generates a sampling control signal and sends the...

Embodiment 2

[0061] see figure 2 As shown, on the basis of Embodiment 1, preferably, the clock timing module 2 further includes a connection detection timing unit 26, which is connected to the timing unit 23, and when the timing unit 23 reaches the preset connection When detecting time, control the first power switch device 7 and the second power switch device 6 to close, and at the same time, generate a connection detection control signal, and send the connection detection control signal to the connection detection unit 86; The module 8 further includes a connection detection unit 86, the connection detection unit 86 receives the connection detection control signal sent by the connection detection timing unit 26, and under the control of the connection detection control signal, the clock The timing module 2 detects whether the connection between the wireless transceiver module 11 and the wireless gateway is normal when timing reaches the connection detection time, and performs automatic ...

Embodiment 3

[0067] The technical solution of the present invention provides a working method of a low-power general-purpose wireless sensor node, the working method comprising the following steps:

[0068] S11: judging whether the sampling time has arrived according to the timing of the clock timing module, if the sampling time has arrived, then proceed to step S12; otherwise, the second power switch device remains in the off state, and repeats step S11;

[0069] S12: Control the second power switch device to close, and the power supply starts to supply power to the micro control module; at the same time, generate a sampling control signal and send it to the sampling unit;

[0070] S13: The sampling unit receives the sampling control signal, and collects and stores the sensing quantity returned by the sensor module under the control of the sampling control signal;

[0071] S14: determine whether the sampling time is over, if the sampling time is not over, then proceed to step S12; if the ...

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Abstract

The invention discloses a universal wireless sensor node with low power consumption and a working method of the universal wireless sensor node. A power supply directly supplies power to a clock timing module to ensure that the clock timing module works in time, and meanwhile, the power supply directly supplies power to a power supply switch device, the power supply switch device provides power supply to a micro-control module and a Wi-Fi module, the working state of the power supply switch device is controlled by the clock timing module, the working mode of the power supply switch device is changed to close and awaken the micro-control module so as to ensure accurate start and dormancy of the micro-control module, the whole process needs no synchronization of the clock, and the working duration is short, thereby reducing the power consumption; and meanwhile, data collection frequency can be set to a high level according to the demand, thereby greatly improving the universality and application range of the universal wireless sensing node with low power consumption.

Description

technical field [0001] The invention relates to the field of wireless network sensors of the Internet of Things, in particular to a low-power wireless sensor node device and a working method thereof. Background technique [0002] The emerging industry represented by the Internet of Things is currently advancing rapidly and orderly. As a basic component of the wireless sensor network, wireless sensor nodes are the basic front-end for sensing external information in Internet of Things applications. With the help of wireless sensor nodes, the natural world Various physical and chemical quantities are converted into electrical signals, which are connected to the Internet or intranet through a gateway. Existing wireless sensor nodes often use Zigbee (Zigbee). Although Zigbee has low power consumption, its bandwidth is narrow, and it often cannot bear the transmission of large data volumes. Zigbee transmission distance is limited, and Zigbee transfers data A dedicated gateway is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08C17/02H04W84/18
CPCY02D30/70
Inventor 何坚姜熙君徐宗亮樊建中王震怀秦华明
Owner JIANGSU FUJITSU COMM TECH
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