CN102984791B - A kind of power-economizing method of wireless sensor node - Google Patents
A kind of power-economizing method of wireless sensor node Download PDFInfo
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- CN102984791B CN102984791B CN201210534926.XA CN201210534926A CN102984791B CN 102984791 B CN102984791 B CN 102984791B CN 201210534926 A CN201210534926 A CN 201210534926A CN 102984791 B CN102984791 B CN 102984791B
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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
Abstract
The invention provides a kind of power-economizing method of wireless sensor node, the method comprises, intiating radio sensor node, the data transmit-receive module timer value of setting wireless sensor node and the activation threshold value of every data; The data processing module of wireless sensor node judges currently whether have data to reach described activation threshold value, if not, then and log-on data delayed startup pattern, otherwise, then log-on data immediate starting mode; Final data transmitting-receiving terminates, and resets the activation threshold value of data transmit-receive module timer value and every data, closes data transmit-receive module.By the present invention when not needing transceiving data, closing the data transmit-receive module of wireless sensor node, avoiding it to be in wait state for a long time to reach a large amount of object reducing battery power and consume.
Description
Technical field
The present invention relates to Internet of Things wireless sensor node technical field of research, particularly a kind of power-economizing method of the wireless sensor node based on data-driven.
Background technology
Internet of Things is current emerging hot research field, becomes the guide field that various countries build socio-economic development new model and reinvent national long-term competitiveness in recent years gradually.Widely, various wireless senser, as the typical apply of Internet of Things, has begun to take shape certain market scale to the application of Internet of Things.Relative to wireline equipment, the greatest problem of wireless device is energy resource consumption.For the sensor device using battery as energy supply, the operating time of disposable power supply directly has influence on the performance of system.So how wireless sensor node accomplishes that maximization that is energy-conservation and service efficiency becomes an important subject.
In the energy resource consumption of wireless sensor node, the energy that data computing uses is little, and the energy resource consumption of the overwhelming majority is on the data receiver and transmission work of sensor node data transceiver module.After powered up, the energy that transceiving data state and wait state consume is roughly the same for data transmit-receive module.So the energy-conservation key issue of sensor node is to make data transmit-receive module reduce energy consumption.From current technical standpoint, because wireless transmission is by the impact of the many factors such as channel, power, signal strength signal intensity, the quantity of energy that simple reduction data transmit-receive consumes but do not affect the intensity of signal transmission and transmission quality is unpractical.
Summary of the invention
(1) technical problem to be solved
The object of this invention is to provide a kind of power-economizing method of wireless sensor node, the method data transmit-receive module within the unit interval consumes energy under certain prerequisite, is realized the saving of the energy by the operating time of more reasonably mode distribute data transceiver module.
(2) technical scheme
The invention provides a kind of power-economizing method of wireless sensor node, the method comprises:
S1, intiating radio sensor node, the data transmit-receive module timer value of setting wireless sensor node and the activation threshold value of every data;
S2, wireless sensor node judge currently whether have data to reach described activation threshold value; No, perform step S3, otherwise, perform step S4;
S3, wireless sensor node judge whether to reach data transmit-receive module timer value, if reach timer value, wireless sensor node log-on data transceiver module carries out data transmit-receive, otherwise wireless sensor node is in judgement wait state;
S4, wireless sensor node stop timer waiting for, log-on data transceiver module carries out data transmit-receive immediately;
S5, data transmit-receive terminate, and reset the activation threshold value of data transmit-receive module timer value and every data, close data transmit-receive module.
Preferably, described step S1 specifically comprises:
S11, wireless sensor node power up and carry out Autonomous test, setting data transceiver module timer initial value, set the activation threshold value of every data as empty simultaneously; Data processing module generates initial message, log-on data transceiver module, adds system information by gateway to server transmission;
S12, server agree to that sensor node adds, and confirmation is added information and sends to sensor node by gateway;
S13, data transmit-receive module receive the confirmation and add information, and to message initial described in gateway broadcasts, gateway receives described initial message and forwarding server;
S14, server receive described initial message, send control message by gateway to data transmit-receive module;
S15, data transmit-receive module receive described control message, reset the activation threshold value of data transmit-receive module timer value and every data, close data transmit-receive module.
Preferably, described log-on data transceiver module, add system information by gateway to server transmission specifically to comprise: data transmit-receive module sends and adds system information, if the confirmation not receiving server after the scheduled time adds information, then data transmit-receive module again sends and adds system information, preset time rear server still not respond if send, then close data transmit-receive module voluntarily.
Preferably, described data transmit-receive module is to message initial described in gateway broadcasts, gateway receives described initial message and forwarding server specifically comprises: data transmit-receive module sends described initial message, if confiscate the control message of server after the scheduled time, data transmit-receive module sends initial message again, preset time rear server still not respond if send, then close data transmit-receive module voluntarily.
Preferably, the initial message content that described data processing module generates at least comprises: wireless sensor node ID, node information about power and node data measured.
Preferably, the control message content that described server generates at least comprises: the activation threshold value of data transmit-receive module timer value and every data.
Preferably, the transceiver module of wireless sensor node log-on data described in step S3 and step S4 carries out data transmit-receive and specifically comprises:
S341, wireless sensor node turn-on data transceiver module, send data transmit-receive module active information by gateway to server, notification server moment sensor node can carry out data transmit-receive, and waiting for server is by the confirmation message of gateway forwards;
S342, data transmit-receive module receive described confirmation message, and the data of collection are sent to gateway, by gateway forwards to server with the form of message;
S343, server receive and process the data uploaded, and generate new control message and be sent to data reception module by gateway.
Preferably, described step S5 specifically comprises: data reception module receives control message, resets the threshold value of data transmit-receive module timer value and every data, sends data transmit-receive module and closes message, close data transmit-receive module to gateway.
Preferably, send data transmit-receive module active information by gateway to server in described step S341, notification server moment sensor node can carry out data transmit-receive, and waits for that the confirmation message of gateway specifically comprises:
Wireless sensor node sends data transmit-receive module active information to server, if confiscate the confirmation message of server after the scheduled time, transducer sends active information again, presets time rear server and does not still respond, then close data transmit-receive module voluntarily if send.
Preferably, in described step S343, server is generated new control message and is specifically comprised to sensor node data receiver module by gateway forwards:
The control message of waiting for server after the data of described data transmit-receive module transmission message form, if confiscate the control message of server after the scheduled time, data transmit-receive module sends data again, presets time rear server and does not still respond, then close data transmit-receive module voluntarily if send.
(3) beneficial effect
The present invention's data transmit-receive module within the unit interval consumes energy under certain prerequisite, is realized the saving of the energy by the operating time of more reasonably mode distribute data transceiver module.When not needing transceiving data, data transmit-receive module being closed, making it avoid being in wait state for a long time, thus the consumption of a large amount of minimizing battery power; When needs data transmit-receive, by pre-set strategy, log-on data transceiver module completes the transmitting-receiving of data.Substantially reduce the number the power consumption time of data transmit-receive module, thus reach the object of saving the wireless sensor node energy.
Accompanying drawing explanation
Fig. 1 is the flow chart of steps that the invention provides method;
Fig. 2 is the flow chart of steps of intiating radio sensor node in the present invention, the data transmit-receive module timer value of setting wireless sensor node and the threshold value of every data;
Fig. 3 is data delay start-up mode flow chart of steps in embodiment;
Fig. 4 is data immediate starting mode flow chart of steps in embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments, further detailed introduction is done to the present invention.
The invention provides a kind of power-economizing method of wireless sensor node, as shown in Figure 1, concrete steps flow chart of the present invention:
S1, intiating radio sensor node, the data transmit-receive module timer value of setting wireless sensor node and the activation threshold value of every data;
The data processing module of S2, wireless sensor node judges currently whether have data to reach activation threshold value; If no, perform step S3, otherwise, perform step S4;
S3, wireless sensor node judge whether to arrive data transmit-receive module timer value, if arrive timer value, then wireless sensor node log-on data transceiver module carries out data transmit-receive, otherwise wireless sensor node is in waits for judgement state;
S4, wireless sensor node stop timer waiting for, log-on data transceiver module carries out data transmit-receive immediately;
S5, data transmit-receive terminate, and reset the threshold value of data transmit-receive module timer value and every data, close data transmit-receive module.
The present invention starts and closing control accurately to the data transmit-receive module of sensor node, thus improves the service efficiency of sensor node data transceiver module, reaches the object of energy conservation.
Wherein, described step S1 specifically comprises:
S11, wireless sensor node power up and carry out Autonomous test, setting data transceiver module timer initial value, set the activation threshold value of every data as empty simultaneously; Data processing module generates initial message, and log-on data transceiver module adds system information by gateway to server transmission;
S12, server agree to that sensor node adds, and confirmation is added information and sends to sensor node by gateway;
S13, data transmit-receive module receive the confirmation and add information, and to message initial described in gateway broadcasts, gateway receives described initial message and forwarding server;
S14, server receive described initial message, send control message by gateway to data transmit-receive module;
S15, data transmit-receive module receive described control message, reset the activation threshold value of data transmit-receive module timer value and every data, close data transmit-receive module;
Wherein, described log-on data transceiver module counts system information by gateway to server transmission and specifically comprises: after transmission adds system information, if the confirmation not receiving server after 1 minute adds information, then data transmit-receive module again sends and adds system information, if server is not still responded after sending 10 times, then close data transmit-receive module voluntarily.
Described data transmit-receive module is to message initial described in gateway broadcasts, gateway receives described initial message forwarding server and specifically comprises: described data transmit-receive module sends the control message of waiting for server after initial message, if server did not send control message after 20 seconds, data transmit-receive module sends data again, if server is not still responded after sending 5 times, then close data transmit-receive module voluntarily.
Wherein, the initial message content that described data processing module generates comprises: wireless sensor node ID, node information about power and node data measured.
The control message content that described server generates comprises: the threshold value of data transmit-receive module timer value and every data.The identification of sensor node can be carried out, the setting of timer and threshold value according to these message informations.
Wherein, the transceiver module of wireless sensor node log-on data described in step S3 and step S4 carries out data transmit-receive and specifically comprises:
S341, wireless sensor node turn-on data transceiver module, send data transmit-receive module active information by gateway to server, notification server moment sensor node can carry out data transmit-receive, and waiting for server is by the confirmation message of gateway forwards;
S342, data transmit-receive module receive described confirmation message, and the data of collection are sent to gateway, by gateway forwards to server with the form of message by data transmit-receive module;
S343, server receive and process the data uploaded, and generate new control message by gateway forwards to data reception module;
Wherein, described step S5 specifically comprises data reception module and receives control message, resets the threshold value of data transmit-receive module timer value and every data, sends data transmit-receive module and closes message, close data transmit-receive module to gateway.Carried out the transmitting-receiving of data by these steps, save the energy of node as much as possible.
Wherein, send data transmit-receive module active information by gateway to server in described step S31, notification server moment sensor node can carry out data transmit-receive, and waits for that the confirmation message of gateway specifically comprises:
Wireless sensor node sends data transmit-receive module active information to server, and server did not also send confirmation message after 10 seconds, and transducer just sends active information again, if server is not still responded after sending 3 times, then closes data transmit-receive module voluntarily.
In described step S343, server is generated new control message and is specifically comprised to sensor node data receiver module by gateway forwards:
The control message of waiting for server after the data of described data transmit-receive module transmission message form, if server did not send control message after 20 seconds, data transmit-receive module sends message again, if server is not still responded after sending 5 times, then closes data transmit-receive module voluntarily.
Under normal circumstances, sensor node data transceiver module can be communicated with server foundation by gateway smoothly, every state outcome after gateway self-inspection and data result are uploaded onto the server, receive server return confirmation after, close data transmit-receive module and enter power save mode, if by repeatedly sending like this, situation as abnormal in transfer of data, automatically can close data transmit-receive module, carry out human intervention, avoid the loss of energy in time.
Concrete:
The activation threshold value implementation data that the present invention sets data drives startup in real time and setting data transceiver module timer value implementation data to drive delayed startup, merge this two kinds of modes, the data transmit-receive module of sensor node is started and closing control accurately.
Step 1: initializing sensor node, the flow process of the threshold value of setting data transceiver module timer value and every data, concrete steps as shown in Figure 2: this figure describes the handling process of sensor node at initial phase in detail;
Step (1.1): the initial value arranging timer rs_Timer in the data transmit-receive module of wireless sensor node is 10 seconds, the threshold values of every data is empty;
After wireless sensor node Power-On Self-Test is surveyed, data processing module generates initial message, message content at least comprises wireless sensor node ID, node information about power, node data measured, after initial message generates, log-on data transceiver module adds system information by gateway to server transmission, server agrees to that sensor node adds, and confirmation is added information and sends to sensor node;
Wherein, after sensor node sends and adds system letter, if the confirmation not receiving server after 1 minute adds information, then again send and add system information, send if so and also do not respond for 10 times, stop sending, close data transmit-receive module.
Step (1.2): after wireless sensor node data transmit-receive module receives the confirmation and adds information, send the initial message with mark, wherein comprise the primary data message be made up of data measured and the initial condition message be made up of wireless sensor node ID, node information about power; Broadcast described primary data message and initial condition message to gateway by wireless channel, gateway determines whether to receive the data of described wireless sensor node according to the mark of initial message and forwards to server;
Within the time that wait-receiving mode controls message, the control message that data message and state message do not receive server after 20 seconds if send, data transmit-receive module sends message information again, sends if so and does not also receive control message 5 times, then automatically close data transmit-receive module;
Step (1.3): server is after the initial message of the confirmation receiving gateway, the control message to described wireless sensor node is sent to described gateway, comprise: relate to the rs_Timer time value of time delay transceiver mode, relate to every data-triggered threshold values of transceiver mode immediately, gateway is transmitted to described wireless sensor node after receiving the control message of server;
Step (1.4): after described wireless sensor node receives the control message of described gateway forwards, close data transmit-receive module, according to controlling the information of message, reset the rs_Timer value of time delay transceiver mode and every data-triggered threshold values of transceiver mode immediately.
Step 2: the data processing module of wireless sensor node judges currently whether have data to reach activation threshold value; If no, perform step 3, otherwise, perform step 4.
Step 3: log-on data delayed startup pattern, step as shown in Figure 3: the arrival judging waiting timer rs_Timer, when described rs_Timer arrives the time value of setting, wireless sensor node log-on data transceiver module;
Step (3.1): wireless sensor node turn-on data transceiver module, by gateway to the active information sending out data transmit-receive module, data transmit-receive is carried out in the wireless sensor node request that notification server is designated ID at present, and waiting for server is by the confirmation message of gateway forwards;
Within the time of wait-receiving mode confirmation message, if sending in information 10 seconds, server is reactionless, then again send active information, sends if so and does not also receive confirmation 3 times, then automatically close data transmit-receive module;
Step (3.2): the data collected are sent to gateway, by gateway forwards to server with the form of data message and state message after receiving the confirmation message in step (3.1) by described wireless sensor node;
Step (3.3): described server receives and data message in treatment step (3.2) and state message, then generates new control message through the data reception module of gateway forwards to described wireless sensor node.New control message comprises: the trigger threshold of transmission immediately of the time value of the new rs_Timer of time delay transceiver mode and immediately new every data of transceiver mode;
Within the time that wait-receiving mode controls message, the control message that data message and state message do not receive server after 20 seconds if send, data transmit-receive module sends message information again, sends if so and does not also receive control message 5 times, then automatically close data transmit-receive module;
Step (3.4): after described wireless sensor node receives the new control message of step (3.3), reset rs_Timer value and every data-triggered threshold values, and the message of data transmit-receive module closedown is sent to gateway, close data transmit-receive module.
The communication of sensor node and server adopts server asynchronous controlling mode under normal circumstances, and namely after each sign off, server resets the timer on sensor node, determines the time of communication next time.In such a mode, the data of each upload server are all data in the whole time interval.
In order to strengthen the promptness of transfer of data, on the basis of data delay start-up mode, add the real-time start-up mode of data.
Step 4: log-on data immediate starting mode, as shown in Figure 4 step:
Step (4.1): timeing closing device, stop its wait state, described wireless sensor node log-on data transceiver module, data transmit-receive module active information is sent to server by gateway, the wireless sensor node that notification server is designated ID at present needs to send the data having reached trigger threshold, and waiting for server is by the confirmation message of gateway forwards;
Step (4.2.): after described wireless sensor node receives the confirmation message in step (4.1), the data message of collection and state message are sent to gateway, by gateway forwards to server by data transmit-receive module;
Step (4.3.): after described server receives data message in step (4.2) and state message, process, and again generating new control message by gateway forwards to wireless sensor node, new control message comprises: the trigger threshold of transmission immediately of the time value of the new rs_Timer of time delay transceiver mode and immediately new every data of transceiver mode;
Step (4.4.): after described wireless sensor node receives the control message in step (4.3), reset the trigger threshold of rs_Timer value and every data, send data transmit-receive module to gateway and close message, by gateway forwards to server, close data transmit-receive module.After the data that will transfinite report server, the return information of waiting for server, determines next call duration time, closes data transmit-receive module, enters data delay start-up mode.
As shown in Figure 4 after turn-on data transceiver module, the transceiving step of data is identical with Fig. 3, namely also comprises data transmit-receive module and waits for retransmission steps.Found out by the data delay start-up mode of step (3) and (4) and data immediate starting mode, due to the data transmit-receive module on sensor node be in energy-conservation closed condition time, server and sensor node are in completely disconnected connection state, so transmission Various types of data that can be fully also correct in limited call duration time in order to ensure sensor node and server, before each communication sensor node need to obtain the confirmation of server can secured transmission of payload data; After each communication, sensor node can close data transmit-receive module after needing to wait for the configuration information that the information that normally receives receiving server communicated with next time.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and replacement, these improve and replace and also should be considered as protection scope of the present invention.
Claims (9)
1. a power-economizing method for wireless sensor node, is characterized in that, the method comprises:
S1, intiating radio sensor node, the data transmit-receive module timer value of setting wireless sensor node and the activation threshold value of every data;
S2, wireless sensor node judge currently whether have data to reach described activation threshold value; No, perform step S3, otherwise, perform step S4;
S3, wireless sensor node judge whether to reach data transmit-receive module timer value, if reach timer value, wireless sensor node log-on data transceiver module carries out data transmit-receive, otherwise wireless sensor node is in judgement wait state;
S4, wireless sensor node stop timer waiting for, log-on data transceiver module carries out data transmit-receive immediately;
S5, data transmit-receive terminate, and reset the activation threshold value of data transmit-receive module timer value and every data, close data transmit-receive module;
Wherein, described step S1 specifically comprises:
S11, wireless sensor node power up and carry out Autonomous test, setting data transceiver module timer initial value, set the activation threshold value of every data as empty simultaneously; Data processing module generates initial message, log-on data transceiver module, adds system information by gateway to server transmission;
S12, server agree to that sensor node adds, and confirmation is added information and sends to sensor node by gateway;
S13, data transmit-receive module receive the confirmation and add information, and to message initial described in gateway broadcasts, gateway receives described initial message and forwarding server;
S14, server receive described initial message, send control message by gateway to data transmit-receive module;
S15, data transmit-receive module receive described control message, reset the activation threshold value of data transmit-receive module timer value and every data, close data transmit-receive module.
2. method as claimed in claim 1, it is characterized in that, described log-on data transceiver module, add system information by gateway to server transmission specifically to comprise: data transmit-receive module sends and adds system information, if the confirmation not receiving server after the scheduled time adds information, then data transmit-receive module again sends and adds system information, presets time rear server and does not still respond, then close data transmit-receive module voluntarily if send.
3. method as claimed in claim 1, it is characterized in that, described data transmit-receive module is to message initial described in gateway broadcasts, gateway receives described initial message and forwarding server specifically comprises: data transmit-receive module sends described initial message, if confiscate the control message of server after the scheduled time, data transmit-receive module sends initial message again, presets time rear server and does not still respond, then close data transmit-receive module voluntarily if send.
4. method as claimed in claim 1, is characterized in that, the initial message content that described data processing module generates at least comprises: wireless sensor node ID, node information about power and node data measured.
5. method as claimed in claim 1, is characterized in that, the control message content that described server generates at least comprises: the activation threshold value of data transmit-receive module timer value and every data.
6. method as claimed in claim 1, it is characterized in that, the transceiver module of wireless sensor node log-on data described in step S3 and step S4 carries out data transmit-receive and specifically comprises:
S341, wireless sensor node turn-on data transceiver module, send data transmit-receive module active information by gateway to server, notification server moment sensor node can carry out data transmit-receive, and waiting for server is by the confirmation message of gateway forwards;
S342, data transmit-receive module receive described confirmation message, and the data of collection are sent to gateway, by gateway forwards to server with the form of message;
S343, server receive and process the data uploaded, and generate new control message and be sent to data reception module by gateway.
7. method as claimed in claim 6, it is characterized in that, described step S5 specifically comprises: data reception module receives control message, resets the threshold value of data transmit-receive module timer value and every data, send data transmit-receive module to gateway and close message, close data transmit-receive module.
8. method as claimed in claim 6, is characterized in that, send data transmit-receive module active information by gateway to server in described step S341, notification server moment sensor node can carry out data transmit-receive, and waits for that the confirmation message of gateway specifically comprises:
Wireless sensor node sends data transmit-receive module active information to server, if confiscate the confirmation message of server after the scheduled time, transducer sends active information again, presets time rear server and does not still respond, then close data transmit-receive module voluntarily if send.
9. method as claimed in claim 6, it is characterized in that, in described step S343, server is generated new control message and is specifically comprised to sensor node data receiver module by gateway forwards:
The control message of waiting for server after the data of described data transmit-receive module transmission message form, if confiscate the control message of server after the scheduled time, data transmit-receive module sends data again, presets time rear server and does not still respond, then close data transmit-receive module voluntarily if send.
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| CN103501546B (en) * | 2013-10-13 | 2016-05-25 | 北京理工大学 | Reduction wireless sensor network power consumption method based on minimum cost spanning tree |
| CN103826265A (en) * | 2014-03-17 | 2014-05-28 | 广西大学 | Data flow division-based wireless sensor network energy saving method |
| CN103945511B (en) * | 2014-04-09 | 2017-05-24 | 宁波物联基石信息技术有限公司 | Control method and sensor node with sensors turned on and off in time-sharing mode |
| CN106714264B (en) * | 2017-02-22 | 2020-04-17 | 上海斐讯数据通信技术有限公司 | Energy-saving method and system for nodes of Internet of things |
| CN107360362B (en) * | 2017-06-16 | 2019-11-29 | 深圳市共进电子股份有限公司 | Portable network video camera and wireless router operation method |
| US11570685B2 (en) | 2018-10-24 | 2023-01-31 | Carrier Corporation | Power savings for wireless sensors |
| CN110996288A (en) * | 2019-12-02 | 2020-04-10 | 深圳奇未智能科技有限公司 | Sensor equipment starting control method and device |
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