CN103945511A - Control method and sensor node with sensors turned on and off in time-sharing mode - Google Patents
Control method and sensor node with sensors turned on and off in time-sharing mode Download PDFInfo
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- CN103945511A CN103945511A CN201410140430.3A CN201410140430A CN103945511A CN 103945511 A CN103945511 A CN 103945511A CN 201410140430 A CN201410140430 A CN 201410140430A CN 103945511 A CN103945511 A CN 103945511A
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- transducer
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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 discloses a control method and sensor node with sensors turned on and off in a time-sharing mode. The control method and the sensor node are applied to a wireless sensor network. All the sensors are divided into K sets in advance, the total work current of each set is smaller than the rated current of a power module, a corresponding timer is arranged for each sensor, after data reporting of the data sensor is finished every time, the connecting moment and the disconnecting moment of the sensors and the power module are set by a processor module according to the next data reporting moment and the response time of the sensors, when the timer carries out timing and the power connecting moment is up, the sensors are connected with the power module, and the sensors are disconnected with the power module when the disconnecting moment is up. According to the control method and the sensor node, the sensors can be turned on in the time-sharing mode according to the response time of the sensors of different types, and therefore the electric quantity is saved.
Description
Technical field
The invention belongs to wireless sensor network technology field, more specifically say, relate to control method and sensor node that a kind of transducer timesharing opens and closes.
Background technology
Generally, transducer provides electric weight with rechargeable battery, alkaline battery etc.In a lot of application scenarioss, battery charging or replacing are not that part is easy to thing.Therefore, when design transducer and establishment wireless sensor network, all should meet under the prerequisite of application demand, reduce as far as possible the energy consumption of transducer, extending once charging or change the operating time after battery.
Sensor node is the basic functional units of wireless sensor network.Fig. 1 is the structural representation of sensor node.As shown in Figure 1, the basic composition module of sensor node comprises: sensor assembly, processor module, communication module and power module, wherein sensor assembly generally includes a plurality of dissimilar transducers, be used for gathering sensing data, processor module is the nucleus module of sensor node, for equipment control, task distribution and scheduling, sensing data processing etc., communication module is communicated by letter with controlling for the data communication realizing between server and sensor node and sensor node.The response time of dissimilar transducer (starting from power on to the time that obtains stable sensing data) difference is very large.For example the response time of optical sensor was lower than 1 second at 5 to 10 minutes the response time of gas concentration lwevel transducer.
In Internet of Things application, in part scene, server needs regularly to gather the data of a plurality of sensor nodes.Owing to need to guaranteeing all sensing datas of stable output of all the sensors, if power module powers to a plurality of transducers together simultaneously, power-on time need to arrange according to the transducer of maximum response time, will cause so shorter transducer of other response times to waste valuable battery electric quantity.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the control method and the sensor node that provide a kind of transducer timesharing to open and close, open and close transducer according to the response time timesharing of dissimilar sensor, thus save power.
For achieving the above object, the control method that transducer timesharing of the present invention opens and closes comprises the following steps: in advance all the sensors is divided into K group, the total working electric current of every group is all less than power module rated current, for corresponding timer of each sensor setting, the every secondary data of sensor node reports after end, and the connection that processor module arranges transducer and power module is constantly
disconnect constantly and be
wherein T represent sensor node next time data report constantly, tn represents the response time of n transducer, the span of n is n=1,2 ..., N, N represents the quantity of transducer, d
kthe maximum response time that represents all the sensors in n transducer place grouping k, the span of k is n=1,2 ..., K; Timer timing reaches power supply connection during the moment, and transducer is connected with power module, reaches while disconnecting constantly, and transducer and power module disconnect.
The sensor node that the present invention also provides a kind of transducer timesharing to open and close, comprise sensor assembly, processor module, communication module and power module, sensor assembly comprises the transducer of 1 above type, be used for gathering sensing data and send to processor module, processor module sends by communication module after sensing data is processed, power module is to sensor assembly, processor module and communication module power supply, transducer is divided into K group in advance, the total working electric current of every group is all less than power module rated current, each sensor setting has timer switch, for the disconnection of controlling power supply circuits between power module and transducer be communicated with,
The every secondary data of sensor node reports after end, and processor module arranges closing moment and disconnects constantly to each timer switch transmitted signal respectively, and the connection of the timer switch that n transducer is corresponding is constantly
disconnect constantly and be
wherein T represent sensor node next time data report constantly, t
nthe response time that represents n transducer, the span of n is n=1,2 ..., N, N represents the quantity of transducer, d
kthe maximum response time that represents all the sensors in n transducer place grouping k, the span of k is n=1,2 ..., K; The timing of timer switch reaches while connecting constantly, and switch is closed, reaches while disconnecting constantly, and switch disconnects.
Further, between communication module and power module, be provided with timer switch, the every secondary data of sensor node reports after end, and processor module arranges and connects the moment for T-p to this timer switch transmitted signal, and p represents the response time of communication module; The timing of timer switch reaches while connecting constantly, and switch is closed, after communication module completes data and reports, disconnects timer switch.
Further, the every secondary data of sensor node reports after end, and processor module arranges K the activation moments of self, and k activation moments is
wherein q represents the needed time of the processor die activation of block, and h represents processor module receiving sensor data required time, then enters dormancy; After front activation for K-1 time, processor module enters dormancy after receiving sensing data, and after last activation for the K time, processor module need enter dormancy after setting completed again to each module.
Control method and sensor node that transducer timesharing of the present invention opens and closes, in advance all the sensors is divided into K group, the total working electric current of every group is all less than power module rated current, for corresponding timer of each sensor setting, the every secondary data of sensor node reports after end, processor module basis next time data reports the response time of the moment and each transducer that the connection moment and the disconnection moment of transducer and power module are set, timer timing reaches power supply connection during the moment, transducer is connected with power module, reach while disconnecting constantly, transducer and power module disconnect.
The present invention has following beneficial effect:
(1) carry out timesharing switching after transducer is divided into groups, the total working electric current that makes simultaneously to access the transducer of power supply is less than power module rated current, guarantees normal work and the power module safety of transducer;
(2) processor module reports constantly according to data next time and the response time of each transducer arranges being connected constantly of each transducer and power module and disconnects the moment, at the consuming cells electric weight that guarantees that each transducer can be the least possible when normally gathering sensing data, can avoid transducer to open and the battery electric quantity waste problem brought simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of sensor node.；
Fig. 2 is a kind of embodiment flow chart of the control method of transducer timesharing switching of the present invention;
Fig. 3 connects constantly and disconnects the time shaft schematic diagram in the moment in control method shown in Fig. 2;
Fig. 4 is a kind of embodiment structure chart of the sensor node of transducer timesharing switching of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described, so that those skilled in the art understands the present invention better.Requiring particular attention is that, in the following description, when perhaps the detailed description of known function and design can desalinate main contents of the present invention, these are described in here and will be left in the basket.
Embodiment
Fig. 2 is a kind of embodiment flow chart of the control method of transducer timesharing switching of the present invention.As shown in Figure 2, the control method that transducer timesharing of the present invention opens and closes comprises the following steps:
S201: sensor group: in advance all the sensors is divided into K group, the total working electric current of every group is all less than power module rated current.This step is in order to prevent that in sensor assembly, transducer scale is too large, and total working electric current surpasses the rated power supply of power module, thereby for power module causes damage, has also guaranteed the normal work of each transducer simultaneously.
S202: be corresponding timer of each sensor setting, the every secondary data of sensor node reports after end, and the connection that processor module arranges transducer and power module is constantly
disconnect constantly and be
wherein T represent sensor node next time data report constantly, tn represents the response time of n transducer, the span of n is n=1,2 ..., N, N represents the quantity of transducer, d
kthe maximum response time that represents all the sensors in n transducer place grouping k, the span of k is n=1,2 ..., K.
Fig. 3 connects constantly and disconnects the time shaft schematic diagram in the moment in control method shown in Fig. 2.As shown in Figure 3, in the present embodiment, transducer is divided for 3 groups, in each grouping, the maximum response time of all the sensors is respectively d
1, d
2, d
3.Sensor node next time data reports constantly T can adopt in two ways to determine, if sensor node is provided with data report cycle, according to data report cycle, can calculates data next time and report constantly, or can arrange to obtain according to user.In the present invention, require the transducer in every group of transducer can access sensing data and send to processor module at synchronization.The 1st group of transducer of take is example, and the cut-off time that sends sensing data is
for the transducer n in the 1st group of transducer, it with being connected constantly of power module is so
the visible transducer for the maximum response time in the 1st group of transducer, its connection is constantly
S203: timer continues timing.
S204: judge whether the timer timing that each transducer is corresponding reaches connection constantly, if do not reached, returns to S203 and continues timing, if reached, enters step S205;
S205: transducer is connected with power module, starts to power on, and starts to gather sensing data and send to processor module after powering on, and enters step S206 and continues timing.
S206: timer continues timing.
S207: judge whether the timer timing that each transducer is corresponding reaches disconnection constantly, if do not reached, returns to S206 and continues timing, if reached, enters step S208.
S208: transducer and power module disconnect, returns to step S202 and waits for that this secondary data reports end postprocessor module setting connection next time constantly and disconnects constantly.
The control method that the present invention also opens and closes based on transducer timesharing, has proposed the sensor node that a kind of transducer timesharing opens and closes.Fig. 4 is a kind of embodiment structure chart of the sensor node of transducer timesharing switching of the present invention.As shown in Figure 4, the sensor node that transducer timesharing of the present invention opens and closes comprises sensor assembly, processor module, communication module and power module, and sensor assembly comprises the transducer of 1 above type.In the present embodiment, the external dc power that power module is 12V, each transducer disposes a commutator transformer, and to make voltage transitions be the operating voltage that transducer is corresponding.Transducer is divided into K group (in the present embodiment being 3 groups) in advance, and the total working electric current of every group is all less than power module rated current, and each sensor setting has timer switch, for the disconnection of controlling power supply circuits between power module and transducer be communicated with.
The every secondary data of sensor node reports after end, and processor module arranges closing moment and disconnects constantly to each timer switch transmitted signal respectively, and the connection of the timer switch that n transducer is corresponding is constantly
disconnect constantly and be
wherein T represent sensor node next time data report constantly, t
nthe response time that represents n transducer, the span of n is n=1,2 ..., N, N represents the quantity of transducer, d
kthe maximum response time that represents all the sensors in n transducer place grouping k, the span of k is n=1,2 ..., K; The timing of timer switch reaches while connecting constantly, and switch is closed, reaches while disconnecting constantly, and switch disconnects.
In order to reach better energy-saving effect, can also adopt similar way to manage to communication module and processor module:
For communication module, optimal way is: timer switch is also set between communication module and power module, the every secondary data of sensor node reports after end, and processor module arranges and connects the moment for T-p to this timer switch transmitted signal, and p represents the response time of communication module; The timing of timer switch reaches while connecting constantly, and switch is closed, after communication module completes data and reports, disconnects timer switch.Due to communication module just work after all the sensors grouping all gathers, therefore directly according to data next time, report and determine powering on the moment of communication module constantly.
For processor module, optimal way is: the every secondary data of sensor node reports after end, and processor module arranges K the activation moments of self, and k activation moments is
wherein q represents the needed time of the processor die activation of block, and h represents processor module receiving sensor data required time, then enters dormancy.At this moment because processor module will receive the sensing data from transducer, so processor activation moments is constantly definite with the disconnection of power module after gathering according to the sensing data of every group of transducer.After front activation for K-1 time, processor module enters dormancy after receiving sensing data, and after last activation for the K time, processor module need enter dormancy after setting completed again to each module.
Although above the illustrative embodiment of the present invention is described; so that those skilled in the art understand the present invention; but should be clear; the invention is not restricted to the scope of embodiment; to those skilled in the art; as long as various variations appended claim limit and definite the spirit and scope of the present invention in, these variations are apparent, all utilize innovation and creation that the present invention conceives all at the row of protection.
Claims (4)
1. the control method that a transducer timesharing opens and closes, it is characterized in that, comprise the following steps: in advance all the sensors is divided into K group, the total working electric current of every group is all less than power module rated current, for corresponding timer of each sensor setting, the every secondary data of sensor node reports after end, and the connection that processor module arranges transducer and power module is constantly
disconnect constantly and be
wherein T represent sensor node next time data report constantly, t
nthe response time that represents n transducer, the span of n is n=1,2 ..., N, d
kthe maximum response time that represents all the sensors in n transducer place grouping k, the span of k is n=1,2 ..., K; Timer timing reaches power supply connection during the moment, and transducer is connected with power module, reaches while disconnecting constantly, and transducer and power module disconnect.
2. the sensor node that a transducer timesharing opens and closes, comprise sensor assembly, processor module, communication module and power module, sensor assembly comprises the transducer of 1 above type, be used for gathering sensing data and send to processor module, processor module sends by communication module after sensing data is processed, power module is to sensor assembly, processor module and communication module power supply, it is characterized in that, transducer is divided into K group in advance, the total working electric current of every group is all less than power module rated current, each sensor setting has timer switch, for the disconnection of controlling power supply circuits between power module and transducer be communicated with,
The every secondary data of sensor node reports after end, and processor module arranges closing moment and disconnects constantly to each timer switch transmitted signal respectively, and the connection of the timer switch that n transducer is corresponding is constantly
disconnect constantly and be
wherein T represent sensor node next time data report constantly, t
nthe response time that represents n transducer, the span of n is n=1,2 ..., N, N represents the quantity of transducer, d
kthe maximum response time that represents all the sensors in n transducer place grouping k, the span of k is n=1,2 ..., K; The timing of timer switch reaches while connecting constantly, and switch is closed, reaches while disconnecting constantly, and switch disconnects.
3. sensor node according to claim 1, it is characterized in that, between described communication module and power module, be provided with timer switch, the every secondary data of sensor node reports after end, processor module arranges and connects the moment for T-p to this timer switch transmitted signal, and wherein p represents the response time of communication module; The timing of timer switch reaches while connecting constantly, and switch is closed, after communication module completes data and reports, disconnects timer switch.
4. sensor node according to claim 2, is characterized in that, the every secondary data of described sensor node reports after end, and processor module arranges K the activation moments of self, and k activation moments is
wherein q represents the needed time of the processor die activation of block, and h represents processor module receiving sensor data required time, then enters dormancy; After front activation for K-1 time, processor module enters dormancy after receiving sensing data, and after last activation for the K time, processor module need enter dormancy after setting completed again to each module.
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| CN201410140430.3A CN103945511B (en) | 2014-04-09 | 2014-04-09 | Control method and sensor node with sensors turned on and off in time-sharing mode |
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| CN106131879A (en) * | 2016-08-12 | 2016-11-16 | 梁广俊 | Radio sensing network gateway node Poewr control method based on N strategy |
| CN106371323A (en) * | 2016-08-17 | 2017-02-01 | 西安交通大学 | Cloud sensor for built-in energy conservation module |
| CN109640061A (en) * | 2019-02-02 | 2019-04-16 | 广州物道水务科技有限公司 | A kind of meter copying device and system |
| CN110187171A (en) * | 2019-06-25 | 2019-08-30 | 武汉阿迪克电子股份有限公司 | A kind of the LoRaWAN electric energy meter and method of network entry of quick networking mechanism |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106131879A (en) * | 2016-08-12 | 2016-11-16 | 梁广俊 | Radio sensing network gateway node Poewr control method based on N strategy |
| CN106131879B (en) * | 2016-08-12 | 2019-10-18 | 南京南游网络科技有限公司 | Wireless sensor network gateway node Poewr control method based on N strategy |
| CN106371323A (en) * | 2016-08-17 | 2017-02-01 | 西安交通大学 | Cloud sensor for built-in energy conservation module |
| CN109640061A (en) * | 2019-02-02 | 2019-04-16 | 广州物道水务科技有限公司 | A kind of meter copying device and system |
| CN109640061B (en) * | 2019-02-02 | 2024-05-07 | 广州物道水务科技有限公司 | Meter reading device and system |
| CN110187171A (en) * | 2019-06-25 | 2019-08-30 | 武汉阿迪克电子股份有限公司 | A kind of the LoRaWAN electric energy meter and method of network entry of quick networking mechanism |
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Owner name: ZHOU KAIYU XU SHIZHONG Free format text: FORMER OWNER: XU SHIZHONG Effective date: 20150709 Owner name: NINGBO IOT JISHI INFORMATION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHOU KAIYU Effective date: 20150709 |
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Effective date of registration: 20150709 Address after: 315100, room 17, No. 17, China Science and Technology Park, Ningbo, Yinzhou District, Zhejiang 803, China Applicant after: Ningbo Union Foundation Stone Information Technology Co., Ltd. Applicant after: Zhou Kaiyu Applicant after: Xu Shizhong Address before: 611731 Chengdu province high tech Zone (West) West source Avenue, No. 2006 Applicant before: Zhou Kaiyu Applicant before: Xu Shizhong |
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