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A Sleep Scheduling Method for Wireless Sensor Networks Based on Node Grouping

A technology of wireless sensors and scheduling methods, applied in specific environment-based services, wireless communications, advanced technologies, etc., can solve the problem of limited processing power, wireless bandwidth, and battery capacity, inconvenient to charge or replace batteries at any time, and the network cannot work normally. and other problems, to achieve the effect of reasonable resource allocation and small transmission delay

Active Publication Date: 2022-01-07
GUANGDONG HONGSHI INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The number of sensor network nodes is huge, and they are often distributed in areas with harsh environments. It is inconvenient to charge or replace batteries at any time, but the network requires a long life. Therefore, how to reasonably use the energy of sensor nodes and design low-energy network protocols , prolonging the life of sensor networks is an important issue in the research of wireless sensor networks
[0004] Due to the limitation of size and cost, the sensor nodes in the wireless sensor network have very limited processing power, wireless bandwidth and battery capacity, especially the battery power of the sensor nodes cannot be supplemented in most cases.
In order to avoid the failure of the entire network due to the failure of some sensor nodes, there will be some redundant nodes in the wireless sensor network, which makes it possible for the nodes to work in rotation

Method used

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  • A Sleep Scheduling Method for Wireless Sensor Networks Based on Node Grouping
  • A Sleep Scheduling Method for Wireless Sensor Networks Based on Node Grouping
  • A Sleep Scheduling Method for Wireless Sensor Networks Based on Node Grouping

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Experimental program
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Embodiment 1

[0034] Such as figure 1 As shown, this embodiment discloses a wireless sensor network dormancy scheduling method based on node grouping, including the following steps:

[0035] S1. Divide all sensor nodes in the wireless sensor network into several groups; specifically, divide all sensor nodes in the wireless sensor network into several groups according to the geographical area where the sensor nodes are located, such as in figure 2 In the wireless sensor network shown, the nodes in the dotted ellipse area, such as nodes B, C, D, etc., all belong to the group with group number 1; after division, the number of nodes in the group is small and the network distance between nodes is It is also shorter so that communication is more convenient;

[0036] S2. All sensor nodes in the group record request quantity information; the request quantity information is the quantity of various monitoring data requests received by sensor nodes in each time segment of several historical time per...

Embodiment 2

[0053] Such as image 3 As shown, this embodiment discloses the specific workflow of the sensor node when implementing the wireless sensor network dormancy scheduling method described in Embodiment 1 above:

[0054] After the sensor node starts working, it detects whether the monitoring data request is received;

[0055] If so, forward its own monitoring data to other nodes according to the network routing protocol, and record the average number of monitoring data requests received in each time slice of the elapsed time period;

[0056] At the end of the elapsed time period, the sensor node with the most remaining power in the group is elected as the group leader node;

[0057] The sensor node monitors whether it is selected as the group leader node;

[0058] If so, receive the monitoring objects and parameters of each node in the group and the distribution of the average number of monitoring data requests received, calculate and send the probability distribution that each n...

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Abstract

A wireless sensor network dormancy scheduling method based on node grouping disclosed by the present invention, the sensor node counts the number of monitoring data requests received in the historical period, and sends it to the group leader node in the group, the group leader node Then calculate the probability information of various monitoring data, and the subordinate nodes in the group sleep according to the probability information, which effectively integrates the historical data. At the same time, selecting the group leader with the most power for probability calculation also ensures the sensor nodes in the group to the greatest extent. The resource allocation is reasonable, and the calculated probability information can guide the sensor nodes in the wireless sensor network to choose the corresponding time segment to sleep more effectively, so as to achieve the maximum energy saving of the nodes while maintaining a small transmission delay.

Description

technical field [0001] The invention belongs to the field of wireless sensor networks, and mainly relates to a wireless sensor network dormancy scheduling method based on node grouping. Background technique [0002] In recent years, with the gradual and in-depth application of wireless sensor networks in many fields such as environmental monitoring, medical care, and military affairs, it has brought a profound impact on people's life and production. Wireless sensor network is a wireless network without infrastructure, which can monitor, perceive and collect information of various environments or monitoring objects in the network distribution area in real time, process these data, and finally transmit the information to user. [0003] The number of sensor network nodes is huge, and they are often distributed in areas with harsh environments. It is inconvenient to charge or replace batteries at any time, but the network requires a long life. Therefore, how to reasonably use t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/38H04W52/02
CPCH04W4/38H04W52/0216Y02D30/70
Inventor 龚亚东王俊波
Owner GUANGDONG HONGSHI INTELLIGENT TECH CO LTD