CN101425917A - Sleep scheduling method for wireless sensor network - Google Patents
Sleep scheduling method for wireless sensor network Download PDFInfo
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- CN101425917A CN101425917A CNA2007100562441A CN200710056244A CN101425917A CN 101425917 A CN101425917 A CN 101425917A CN A2007100562441 A CNA2007100562441 A CN A2007100562441A CN 200710056244 A CN200710056244 A CN 200710056244A CN 101425917 A CN101425917 A CN 101425917A
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Abstract
The invention relates to a wireless sensor network application technology field, discloses a dormant scheduling method for wireless sensor network comprising: timing dormancy, timing wake-up, working clock control, collected data storing, delayed retransmission. The inventive method employs clock module and data memory module on hardware node, integrates dormancy and working of node of wireless sensor network based on time synchronization; node dormancy time is longer than working time to achieve aim of electricity-saving; during node dormancy, communication chip of node is closed, and any activity of node except data collection stops; when node is waken up, communication chip is reopened for communication. The data storage and delayed retransmission ensures reliability of communication. Dormancy-awaking scheduling of node is implemented, energy consumption of node is reduced, which satisfies application demand of wireless sensor network node.
Description
Technical field
The present invention relates to the wireless sensor network field, related in particular to the dormancy dispatching technology.
Background technology
Wireless sensor network (Wireless Sensor Network, be called for short WSN) is considered to one of most important technology of 21 century, is the numerous transducer mode by radio communication, connects each other, handles, transmits the network of information.This network synthesis sensor technology, embedded computing technique, distributed information processing and the communication technology, the various environment in monitoring in real time, perception and the collection network distributed areas or the information of monitoring target, and these information are handled, send required user to.Wireless sensor network all has purposes widely in military affairs, industry, traffic, safety, medical treatment, detection and family and working environment etc. aspect a lot, its research, development and application, be related to each great aspects such as national security, economic development, caused in the world in recent years and paid attention to widely and drop into.
(Wireless Sensor Network, WSN) structure as shown in Figure 4 for wireless sensor network.Sensor node is distributed in the various piece of network, is used to collect data, and data are routed to information gathering node (Sink).Information gathering node and information processing node communicate by Wide Area Network (as Internet network or satellite network), thereby the data of collecting are handled.
Node does not adopt dormancy dispatching method or employing to use the dormancy dispatching method of a bunch mode in the middle of traditional wireless sensor network.If node does not adopt dormancy dispatching method, equipment is once startup, and just continuous firing has always expended a large amount of electric energy, also makes the life-span of node be subjected to the influence of battery capacity, has influenced the application of wireless sensor network technology greatly.Some have used in the network of dormancy dispatching method at present, generally adopted the mode of using bunch head, promptly keep certain several node continuous firing, other nodes take turns dormancy awakening, when the node that is waken up is worked, send the data to a bunch head earlier, do forwarding again after waking up by bunch first-class node that need to wait to receive data again.This method at first bunch head can not quit work, and the life-span of bunch head has just directly influenced the use of whole network; Moreover all data all will transfer to bunch head and transmit, and this just makes that bunch head need receive lot of data, and load is bigger, is easy to generate the situation of loss of data, makes transfer of data be in a kind of unsafe state; And bunch head will be monitored common node always, waits for waking up of ordinary node, and this has just wasted a large amount of resources.Therefore how in wireless network, to save the energy more, just need a kind of dormancy dispatching method that better is used for wireless sensor network.
Summary of the invention
The present invention is directed to above-mentioned prior art problems and weak point, proposed a dormancy dispatching method that is used for wireless sensor network technology, to reach the purpose of saving power supply.
The present invention is achieved in that
A kind of dormancy dispatching method that is used for wireless sensor network, the hardware device that uses comprises at least: clock module in the wireless sensor network node and data memory module.
This method adopts dormancy awakening mechanism regularly, under the prerequisite of time synchronized, has proposed a kind of dormancy dispatching method that is used for wireless sensor network technology.Said method comprising the steps of:
1. on the basis of clock synchronization, a kind of unified dormancy dispatching strategy of whole network using promptly has the dormancy of unified global clock Control Node and wakes up.
2. when global clock arrives a dormancy time point that provides, node will enter the dormant stage.
3. node got off the operating time log of each work clock before the beginning dormancy.
4. stop the clock of all working, the clock of wherein being responsible for data acquisition can not be stopped.
5. in the dormant stage, gather the data meeting that comes up and come from data that other nodes need be forwarded together by storage and uniform.
6. node will be closed the communication module of oneself, enter the dormant stage.
7. when operating time that provides of global clock arrival puts, node will be waken up, and enter working stage.
8. node is waken up, and opens the communication module of oneself.
9. time of having moved by each clock of noting before, calculating each clock should begin constantly to work on (being start-up time) from which, and the algorithm of each Clock enable time deducts the time that its clock has moved for the operating time of its clock one-period.
10. recover the clock that all are stopped according to the time of calculating.
11. the data of storage send item by item before.
12. when global clock arrives a dormancy time point that provides once more, return step 2.
From technique scheme as can be seen, the dormancy dispatching method that is used for wireless sensor network provided by the invention has important effect for the research and the product development of wireless sensor network technology, and major advantage is as follows:
1. realize the timing dormancy and the timing working of node, saved electric energy.
2. realize the self-control of node, do not relied on the influence of data traffic, under the network condition condition of severe, regularly retransmitted, guaranteed data transmission safety.
3. the data of storage of collected effectively, and ensure all sending of safety of all data.
4. support to be used in all kinds wireless network node of every field, better generality is arranged.
Description of drawings
Below in conjunction with accompanying drawing the present invention is made a detailed description.
Fig. 1 is the structural representation of wireless sensor network universal nodes.
Fig. 2 is a dormancy dispatching flow chart provided by the invention.
Fig. 3 is data acquisition provided by the invention and transmission flow figure.
Fig. 4 is the wireless sensor network structure chart.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Embodiment
Typical wireless sensor network structure chart provided by the invention is referring to shown in Figure 4.
As shown in Figure 1, Fig. 1 is the structural representation of wireless sensor network universal nodes.This node comprises sensor interface unit 10, microprocessor unit 11, radio transceiver unit 12, usb interface unit 14, level conversion and buffer unit 15, memory cell 16, Power Management Unit 17 at least; Microprocessor unit 11 carries out the reception and the transmission of data by synchronous serial interface SPI and radio transceiver unit 12; Microprocessor unit 11 communicates by BSL, UART and PC; Sensor interface unit 10 mainly is to provide interface for external sensor.
As shown in Figure 2, Fig. 2 is a dormancy dispatching flow chart provided by the invention.In a network of having put up, each equipment adopts a kind of unified dormancy strategy, the operating time of equipment will be much smaller than dormancy time in this strategy, this has just reached energy-conservation effect, and initiate node can the elapsed time synchronously after, also adopt customized good unified dormancy strategy.Step 201 is an initial actuating.In step 202, Power Management Unit 17 is opened, and node enters operating state.In step 203, judge whether clock arrives the dormancy time point, and wherein clock module is included in the microprocessor unit 11.If step 203 then is back to step 202 for not.If step 203 is for being then in step 204, to write down the running time of each clock.In step 205, stop all working clock except that the data collection.In step 206, the radio transceiver unit 12 of closed node.In step 207, node formally enters resting state.In step 208, judge whether clock arrives the operating time point.If step 208 then is back to step 207 for not.If step 208 is for being, then in step 209, the radio transceiver unit 12 of opened nodes.In step 210, calculate each clock and begin constantly to rework from which.In step 211, recover the work of each clock, be back to step 202.
As shown in Figure 3, Fig. 3 data acquisition provided by the invention and transmission flow figure.Step 31 is an initial actuating.In step 32, node is passed through the storage of microprocessing unit 11 collections in memory cell 16.In step 33, whether detection node is in running order.If step 33 then is back to step 32 for not.If yes, then in step 34, pass through radio transceiver unit 12 to other equipment sending datas.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. dormancy dispatching method that is used for wireless sensor network said method comprising the steps of:
1) on the basis of clock synchronization, a kind of unified dormancy dispatching strategy of whole network using promptly has the dormancy of unified global clock Control Node and wakes up;
2) when global clock arrives a dormancy time point that provides, node will enter the dormant stage;
3) node got off the operating time log of each work clock before the beginning dormancy;
4) stop the clock of all working, the clock of wherein being responsible for data acquisition can not be stopped;
5) in the dormant stage, gather the data meeting come up and come from data that other nodes need be forwarded together by storage and uniform;
6) node will be closed the communication module of oneself, enter the dormant stage;
7) when operating time that provides of global clock arrival puts, node will be waken up, and enter working stage;
8) node is waken up, and opens the communication module of oneself;
9) time of having moved by each clock of noting before, calculating each clock should begin constantly to work on (being start-up time) from which, and the algorithm of each Clock enable time deducts the time that its clock has moved for the operating time of its clock one-period;
10) recover the clock that all are stopped according to the time of calculating;
11) data of storage send item by item before;
12) when global clock arrives a dormancy time point that provides once more, return step 2).
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| CNA2007100562441A CN101425917A (en) | 2007-10-29 | 2007-10-29 | Sleep scheduling method for wireless sensor network |
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| CNA2007100562441A CN101425917A (en) | 2007-10-29 | 2007-10-29 | Sleep scheduling method for wireless sensor network |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848549A (en) * | 2010-04-29 | 2010-09-29 | 中国人民解放军国防科学技术大学 | Task scheduling method for wireless sensor network node |
| CN102118206A (en) * | 2011-02-23 | 2011-07-06 | 尚雪峰 | Broadcast principle-based lighting equipment wireless network deployment method and system |
| CN102238706A (en) * | 2010-04-29 | 2011-11-09 | 赵国安 | Low power consumption wireless sensor nodes based on real-time clock (RTC) |
| CN102547938A (en) * | 2011-12-29 | 2012-07-04 | 上海顶竹通讯技术有限公司 | Router, wireless sensor network and method for monitoring terminal nodes |
| CN102724741A (en) * | 2012-07-13 | 2012-10-10 | 电子科技大学 | Micro-cycle-based sleep method adapted to routing nodes in wireless sensor network |
| CN102821446A (en) * | 2012-06-04 | 2012-12-12 | 江苏大学 | Synchronous awaking mechanism of long-term and deep dormant wireless sensor network |
| CN102833828A (en) * | 2011-06-17 | 2012-12-19 | 美新微纳传感系统有限公司 | Method for realizing low power consumption on radio frequency of wireless sensor network |
| CN103237337A (en) * | 2013-02-28 | 2013-08-07 | 山东省计算中心 | Adaptive network dormancy control method for wireless sensors |
| CN104780597A (en) * | 2015-04-30 | 2015-07-15 | 西安成峰科技有限公司 | Low-power communication receiving and sending control method of wireless security protection and monitoring system |
| WO2015184625A1 (en) * | 2014-06-05 | 2015-12-10 | 华为技术有限公司 | Asynchronous wakeup method and device |
| CN105636183A (en) * | 2016-02-23 | 2016-06-01 | 重庆邮电大学 | Energy-saving dormancy awakening method based on ZigBee technology |
| CN106413065A (en) * | 2016-12-05 | 2017-02-15 | 浙江科技学院 | Control method of low-power-consumption wireless sensor network system |
| TWI703834B (en) * | 2019-07-23 | 2020-09-01 | 雲動科技股份有限公司 | Method and system for remotely waking up network user equipment |
| CN112905250A (en) * | 2021-02-09 | 2021-06-04 | 上海锐伟电子科技有限公司 | Awakening method and system of embedded equipment |
| CN113890770A (en) * | 2021-10-20 | 2022-01-04 | 国电南瑞科技股份有限公司 | Low-power-consumption operation method and system for node equipment of Internet of things |
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2007
- 2007-10-29 CN CNA2007100562441A patent/CN101425917A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102238706A (en) * | 2010-04-29 | 2011-11-09 | 赵国安 | Low power consumption wireless sensor nodes based on real-time clock (RTC) |
| CN101848549B (en) * | 2010-04-29 | 2012-06-20 | 中国人民解放军国防科学技术大学 | Task scheduling method for wireless sensor network node |
| CN101848549A (en) * | 2010-04-29 | 2010-09-29 | 中国人民解放军国防科学技术大学 | Task scheduling method for wireless sensor network node |
| CN102118206A (en) * | 2011-02-23 | 2011-07-06 | 尚雪峰 | Broadcast principle-based lighting equipment wireless network deployment method and system |
| CN102833828A (en) * | 2011-06-17 | 2012-12-19 | 美新微纳传感系统有限公司 | Method for realizing low power consumption on radio frequency of wireless sensor network |
| CN102547938A (en) * | 2011-12-29 | 2012-07-04 | 上海顶竹通讯技术有限公司 | Router, wireless sensor network and method for monitoring terminal nodes |
| CN102547938B (en) * | 2011-12-29 | 2015-04-08 | 上海顶竹通讯技术有限公司 | Router, wireless sensor network and method for monitoring terminal nodes |
| CN102821446B (en) * | 2012-06-04 | 2015-03-04 | 江苏大学 | Synchronous awaking mechanism of long-term and deep dormant wireless sensor network |
| CN102821446A (en) * | 2012-06-04 | 2012-12-12 | 江苏大学 | Synchronous awaking mechanism of long-term and deep dormant wireless sensor network |
| CN102724741A (en) * | 2012-07-13 | 2012-10-10 | 电子科技大学 | Micro-cycle-based sleep method adapted to routing nodes in wireless sensor network |
| CN102724741B (en) * | 2012-07-13 | 2015-01-07 | 电子科技大学 | Micro-cycle-based sleep method adapted to routing nodes in wireless sensor network |
| CN103237337A (en) * | 2013-02-28 | 2013-08-07 | 山东省计算中心 | Adaptive network dormancy control method for wireless sensors |
| CN103237337B (en) * | 2013-02-28 | 2016-08-03 | 山东省计算中心 | A kind of wireless senser adaptive network dormancy control method |
| WO2015184625A1 (en) * | 2014-06-05 | 2015-12-10 | 华为技术有限公司 | Asynchronous wakeup method and device |
| CN104780597A (en) * | 2015-04-30 | 2015-07-15 | 西安成峰科技有限公司 | Low-power communication receiving and sending control method of wireless security protection and monitoring system |
| CN104780597B (en) * | 2015-04-30 | 2018-01-26 | 西安成峰科技有限公司 | The low power loss communication receiving and sending control method of wireless security protection monitoring system |
| CN105636183A (en) * | 2016-02-23 | 2016-06-01 | 重庆邮电大学 | Energy-saving dormancy awakening method based on ZigBee technology |
| CN106413065A (en) * | 2016-12-05 | 2017-02-15 | 浙江科技学院 | Control method of low-power-consumption wireless sensor network system |
| CN106413065B (en) * | 2016-12-05 | 2019-10-01 | 浙江科技学院 | The control method of low-consumption wireless sensing network system |
| TWI703834B (en) * | 2019-07-23 | 2020-09-01 | 雲動科技股份有限公司 | Method and system for remotely waking up network user equipment |
| CN112905250A (en) * | 2021-02-09 | 2021-06-04 | 上海锐伟电子科技有限公司 | Awakening method and system of embedded equipment |
| CN113890770A (en) * | 2021-10-20 | 2022-01-04 | 国电南瑞科技股份有限公司 | Low-power-consumption operation method and system for node equipment of Internet of things |
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Application publication date: 20090506 |