CN104703259B - Low power consuming sensor node sleep method and system - Google Patents
Low power consuming sensor node sleep method and system Download PDFInfo
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- CN104703259B CN104703259B CN201310670040.2A CN201310670040A CN104703259B CN 104703259 B CN104703259 B CN 104703259B CN 201310670040 A CN201310670040 A CN 201310670040A CN 104703259 B CN104703259 B CN 104703259B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The present invention relates to a kind of low power consuming sensor node sleep method, include the following steps: that a. sets every wheel period, the number of iterations, energy threshold, network delay and network and is delayed substantially；B. suspend mode node, working node are selected from network inner sensor node；C. the node that epicycle period needs work normally is determined；D. for the node that the epicycle period needs to work normally, perception data, processing data storage are waken up into this node to its memory module；E. after being sent the perception data and the processing data, this node is again introduced into dormant state.The invention further relates to a kind of low power consuming sensor node sleep systems.The present invention can maintain minimum destination node to work normally, realize the low power consuming of whole network in the case where meeting network delay.
Description
Technical field
The present invention relates to a kind of low power consuming sensor node sleep method and system.
Background technique
Wireless sensor network is the sensor by largely having perception, transmission data, processing and wireless transmission function
Composition.Wireless sensor node perception data simultaneously forwards data to base station in a multi-hop fashion.Sensor is usually all by battery
Power supply, is deployed in remote or unfrequented place.Therefore, energy consumption is minimized, to make the life of sensor network
Period maximizes most important.
The power consumption of sensor node is mainly in terms of communication and information collection.In general, four main communication
State is respectively to transmit, receive, monitor and sleep.Matthew points out that 81mW, 30MW, 30MW and 0.003mW are respectively above-mentioned
The power level of four kinds of states.Obviously, energy consumption when monitoring is the very big part of entire energy consumption.In fact,
In specific environment awakely, it is not necessary to which the moment maintains all nodes to monitor.
However, there is no the very good solution above problems for existing sleep scheduling scheme.
Summary of the invention
In view of this, it is necessary to provide a kind of low power consuming sensor node sleep method and system.
The present invention provides a kind of low power consuming sensor node sleep method, and this method comprises the following steps: a. sets every wheel
Period, the number of iterations, energy threshold, network delay and network are delayed substantially；B. it selects to stop from network inner sensor node
Dormancy node, working node；C. the node that epicycle period needs work normally is determined；D. the epicycle period is needed to work normally
Perception data, processing data storage are waken up this node to its memory module by node；E. by the perception data and described
After processing data are sent, this node is again introduced into dormant state.
Wherein, the energy threshold is the minimum energy value for maintaining node normal operation；The network delay is network
The actual time delay of transmission；The network is delayed substantially as the minimum requirements of network delay.
The perception data refers to the data for directly issuing this node；The processing data refer to be sent by other node
Data.
The step c is specifically included: comparing cell delay DiIt is delayed substantially D with networkmIt is required that threshold value.If small
In threshold value, then increase the number of suspend mode node, that is, a part of node in the working node of above-mentioned selection is allowed to enter suspend mode shape
State；If instead being greater than threshold value, then the number of suspend mode node is reduced, that is, a part in the suspend mode node of above-mentioned selection is allowed to save
Point enters working condition.When residue energy of node is less than energy threshold D, which is unable to maintain that the normal of next round node
Energy consumption then updates the node.Until Di≤Dm, WiNumber is minimum, to determine node that the epicycle period needs to work normally.
The transmission module is wireless receiving and dispatching antenna.
The present invention provides a kind of low power consuming sensor node sleep system, including setting module, selecting module, processing mould
Block, sensing module, memory module, sleeping modules and transmission module, in which: the setting module is for setting every wheel period, changing
Generation number, energy threshold, network delay and network are delayed substantially；The selecting module is used for from network inner sensor node
Select suspend mode node, working node；The processing module is used to determine the node that the epicycle period needs to work normally；The perception
Module is used to obtain extraneous perception data, and when the processing data for detecting that downstream links send over will reach this section
When point, sleeping modules are waken up, envoy's point enters normal operating conditions；The memory module be used for store acquisition perception data and
The processing data that other node is sent；The transmission module is used for will be described in memory module after sleeping modules wake-up
Perception data and the processing data are sent to rear hop neighbor node；The sleeping modules are used for not by the sensing module
Make this node before wake-up in a dormant state, after the perception data and the processing data are sent by transmission module,
This node is set to be again introduced into dormant state.
Wherein, the energy threshold is the minimum energy value for maintaining node normal operation；The network delay is network
The actual time delay of transmission；The network is delayed substantially as the minimum requirements of network delay.
The perception data refers to the data for directly issuing this node；The processing data refer to be sent by other node
Data.
The processing module is specifically used for: comparing cell delay DiIt is delayed substantially D with networkmIt is required that threshold value.If
Less than threshold value, then increase the number of suspend mode node, that is, a part of node in the working node of above-mentioned selection is allowed to enter suspend mode
State；If instead being greater than threshold value, then the number of suspend mode node is reduced, that is, allows a part in the suspend mode node of above-mentioned selection
Node enters working condition.When residue energy of node is less than energy threshold D, which is being unable to maintain that next round node just
Normal energy consumption then updates the node.Until Di≤Dm, WiNumber is minimum, to determine section that the epicycle period needs to work normally
Point.
The transmission module is wireless receiving and dispatching antenna.
Low power consuming sensor node sleep method and system provided by the present invention, in the case where meeting network delay,
Minimum destination node is maintained to work normally, and other nodes keep sleep state, to reduce whole network to greatest extent
Energy consumption.
Detailed description of the invention
Fig. 1 is the flow chart of low power consuming sensor node of the present invention sleep method；
Fig. 2 is the running environment schematic diagram of low power consuming sensor node sleep system of the present invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is described in further detail.
The present embodiment is described for a sensor node.
As shown in fig.1, being the operation process chart of low power consuming sensor node sleep method preferred embodiment of the present invention.
Step S401, sets every wheel period as T, the number of iterations R, energy threshold D, network delay Di, network
Basic delay is Dm.The number of network inner sensor node is n, and S is suspend mode node SiSet, W be working node WiCollection
It closes, C is the set of leader cluster node.Wherein, the sensor node is made of suspend mode node, working node and leader cluster node；Institute
Stating energy threshold is the minimum energy value for maintaining node normal operation；The network delay is the actual time delay of network transmission；
The network is delayed substantially as the minimum requirements of network delay.
Step S402, it for the node of n/2 is suspend mode node that number is selected from n network inner sensor node, remaining section
Point is used as working node.Wherein, the suspend mode node is chosen from the working node in last round of period, and the working node is from upper
It is chosen in the suspend mode node in one wheel period.
Step S403, comparing cell delay DiIt is delayed substantially D with networkmIt is required that threshold value.If it is less than threshold value, then
The number for increasing suspend mode node, that is, allow a part of node in the working node of above-mentioned selection to enter dormant state；If instead
Greater than threshold value, then the number of suspend mode node is reduced, that is, a part of node in the suspend mode node of above-mentioned selection is allowed to enter work
State.When residue energy of node is less than energy threshold D, which is unable to maintain that the normal energy consumption of next round node,
Then update the node.Until Di≤Dm, WiNumber is minimum, to determine node that the epicycle period needs to work normally.
Step S404 needs the epicycle period node worked normally, and perception data, processing data storage are deposited to it
Store up module.
Wherein, the perception data refers to the data for directly issuing this node；The processing data refer to be sent by other node
Data.It obtains perception data and is stored in memory module.Ambient enviroment is detected using radio technology, when having detected downstream
When the processing data that link sends over will reach this node, sleeping modules are waken up, envoy's point enters normal operating conditions, and
The processing data also are stored in memory module.
Step S405, by memory module the perception data and the processing data be sent to rear hop neighbor node.
After the perception data and the processing data are sent, this node is again introduced into dormant state, continues to detect external information.
The transmission module is wireless receiving and dispatching antenna.
As shown in fig.2, being the hardware architecture diagram of low power consuming sensor node sleep system of the present invention.
This system includes: front jumping neighbor node, this node, rear hop neighbor node, setting module, selecting module and processing mould
Block.Wherein, the front jumping neighbor node, this node and rear hop neighbor node are the sensor node in network.Described this section
Point includes sensing module, memory module, sleeping modules and transmission module.
The setting module is used to set every wheel period as T, the number of iterations R, energy threshold D, and network delay is
Di, it is D that network is delayed substantiallym.The number of network inner sensor node is n, and S is suspend mode node SiSet, W is working node
WiSet, C be leader cluster node set.Wherein, the sensor node is by suspend mode node, working node and leader cluster node group
At；The energy threshold is the minimum energy value for maintaining node normal operation；The network delay is the reality of network transmission
Delay；The network is delayed substantially as the minimum requirements of network delay.
The selecting module for the node of n/2 is suspend mode node for selecting number from n network inner sensor node,
Remaining node is as working node.Wherein, the suspend mode node is chosen from the working node in last round of period, the work section
Point is chosen from the suspend mode node in last round of period.
The processing module is for comparing cell delay DiIt is delayed substantially D with networkmIt is required that threshold value.If it is less than door
Limit value then increases the number of suspend mode node, that is, a part of node in the working node of above-mentioned selection is allowed to enter dormant state；Instead
If it is greater than threshold value, then reduce the number of suspend mode node, that is, allow a part of node in the suspend mode node of above-mentioned selection into
Enter working condition.When residue energy of node is less than energy threshold D, which is unable to maintain that the normal energy of next round node
Consumption, then update the node.Until Di≤Dm, WiNumber is minimum, to determine node that the epicycle period needs to work normally.
The sensing module is used to obtain extraneous perception data, and works as and detect the processing that downstream links send over
When data will reach this node, sleeping modules are waken up, envoy's point enters normal operating conditions, i.e., the described sensing module is for controlling
The suspend mode and working condition of node processed.Wherein, the perception data refers to the data for directly issuing this node；The processing data refer to
The data sent by other node.If the next cycle working node suspend mode, leader cluster node are sent to sensing module one
Instruction, after which receives instruction, will not wake up the sleeping modules；If the next cycle suspend mode node works,
Leader cluster node is sent to sensing module one instruction, after which receives instruction, wakes up the sleeping nodes and enters normally
Working condition.
The memory module is used to store the processing data that the perception data obtained and other node are sent.
The transmission module be used for sleeping modules wake-up after by memory module the perception data and the processing
Data are sent to rear hop neighbor node.The transmission module is wireless receiving and dispatching antenna.
The sleeping modules are used to make this node in a dormant state before not waken up by the sensing module, are transmitting
After the perception data and the processing data are sent by module, this node is made to be again introduced into dormant state.
The present invention can dynamically adjust the number of sleeping nodes according to the requirement of network delay, reach and save energy simultaneously
Extend the effect of network life.Increase sleeping modules inside sensor node, to be perceived data bits, to handle in time
Data.When data processing is complete, sleep state is immediately entered, to save energy.Partially non-fully in the network of connection, data packet
Transmission rate it is higher.
Although the present invention is described referring to current better embodiment, those skilled in the art should be able to be managed
Solution, above-mentioned better embodiment is only used to illustrate the present invention, be not intended to limit the scope of protection of the present invention, any in the present invention
Spirit and spirit within, any modification, equivalence replacement, improvement for being done etc. should be included in right of the invention and protect
Within the scope of shield.
Claims (7)
- A kind of method 1. low power consuming sensor node is slept, which is characterized in that this method comprises the following steps:A. every wheel period, the number of iterations, energy threshold, network delay and network is set to be delayed substantially；B. suspend mode node, working node are selected from network inner sensor node；C. the node that epicycle period needs work normally is determined；D. for the node that the epicycle period needs to work normally, perception data, processing data storage are called out to its memory module It wakes up this node；E. after being sent the perception data and the processing data, this node is again introduced into dormant state；Wherein, the step c is specifically included: comparing cell delay DiIt is delayed substantially D with networkmIt is required that threshold value: if small In threshold value, then increase the number of suspend mode node, that is, a part of node in the working node of above-mentioned selection is allowed to enter suspend mode shape State；If instead being greater than threshold value, then the number of suspend mode node is reduced, that is, a part in the suspend mode node of above-mentioned selection is allowed to save Point enters working condition；When residue energy of node is less than energy threshold D, which is unable to maintain that the normal of next round node Energy consumption then updates the node, until Di≤Dm, WiNumber is minimum, to determine node that the epicycle period needs to work normally.
- 2. the method as described in claim 1, which is characterized in that the energy threshold is the minimum of maintenance node normal operation Energy value；The network delay is the actual time delay of network transmission；The network is delayed substantially as the minimum requirements of network delay.
- 3. method according to claim 2, which is characterized in that the perception data refers to the data for directly issuing this node； The processing data refer to the data sent by other node.
- 4. a kind of low power consuming sensor node sleep system, which is characterized in that the system includes setting module, selecting module, place Manage module, sensing module, memory module, sleeping modules and transmission module, in which:The setting module is delayed substantially for setting every wheel period, the number of iterations, energy threshold, network delay and network；The selecting module is used to select suspend mode node, working node from network inner sensor node；The processing module is used to determine the node that the epicycle period needs to work normally；The sensing module is used to obtain extraneous perception data, and works as and detect the processing data that downstream links send over When will reach this node, sleeping modules are waken up, envoy's point enters normal operating conditions；The memory module is used to store the processing data that the perception data obtained and other node are sent；The transmission module be used for sleeping modules wake-up after by memory module the perception data and the processing data It is sent to rear hop neighbor node；The sleeping modules are used to make this node in a dormant state before not waken up by the sensing module, in transmission module After the perception data and the processing data are sent, this node is made to be again introduced into dormant state；Wherein, the processing module is specifically used for: comparing cell delay DiIt is delayed substantially D with networkmIt is required that threshold value: such as Fruit is less than threshold value, then increases the number of suspend mode node, that is, a part of node entrance in the working node of above-mentioned selection is allowed to be stopped Dormancy state；If instead being greater than threshold value, then the number of suspend mode node is reduced, that is, allows one in the suspend mode node of above-mentioned selection Partial node enters working condition；When residue energy of node is less than energy threshold D, which is unable to maintain that next round node Normal energy consumption, then update the node, until Di≤Dm, WiNumber is minimum, to determine section that the epicycle period needs to work normally Point.
- 5. system as claimed in claim 4, which is characterized in that the energy threshold is the minimum of maintenance node normal operation Energy value；The network delay is the actual time delay of network transmission；The network is delayed substantially as the minimum requirements of network delay.
- 6. system as claimed in claim 5, which is characterized in that the perception data refers to the data for directly issuing this node； The processing data refer to the data sent by other node.
- 7. system as claimed in claim 4, which is characterized in that the transmission module is wireless receiving and dispatching antenna.
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| CN106559861B (en) * | 2015-09-28 | 2019-11-05 | 展讯通信（上海）有限公司 | Bluetooth equipment data transmission method and device |
| CN107340212A (en) * | 2017-08-18 | 2017-11-10 | 山东诺方电子科技有限公司 | A kind of Atmospheric particulates on-line monitoring equipment based on taxi dome lamp |
| CN110839221B (en) * | 2019-11-04 | 2022-02-11 | 大连大学 | Node data transmission method |
| CN117007136B (en) * | 2023-10-07 | 2023-12-26 | 深圳市千岩科技有限公司 | Environment perception data detection method, device and equipment |
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| CN101547451A (en) * | 2008-12-23 | 2009-09-30 | 西安交通大学 | Wireless sensor network local region covering algorithm based on delayed start |
| CN103237337A (en) * | 2013-02-28 | 2013-08-07 | 山东省计算中心 | Adaptive network dormancy control method for wireless sensors |
| CN103327518A (en) * | 2013-06-24 | 2013-09-25 | 中国科学院信息工程研究所 | Node dormancy scheduling method based on link quality |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101547451A (en) * | 2008-12-23 | 2009-09-30 | 西安交通大学 | Wireless sensor network local region covering algorithm based on delayed start |
| CN103237337A (en) * | 2013-02-28 | 2013-08-07 | 山东省计算中心 | Adaptive network dormancy control method for wireless sensors |
| CN103327518A (en) * | 2013-06-24 | 2013-09-25 | 中国科学院信息工程研究所 | Node dormancy scheduling method based on link quality |
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