CN104717728A - Wireless sensor node and wireless sensor network node system - Google Patents
Wireless sensor node and wireless sensor network node system Download PDFInfo
- Publication number
- CN104717728A CN104717728A CN201510073593.9A CN201510073593A CN104717728A CN 104717728 A CN104717728 A CN 104717728A CN 201510073593 A CN201510073593 A CN 201510073593A CN 104717728 A CN104717728 A CN 104717728A
- Authority
- CN
- China
- Prior art keywords
- wireless sensor
- sensor node
- node
- solar panel
- converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention provides a wireless sensor node and a wireless sensor network node system. The wireless sensor node comprises a sensor, an A/D converter and a master controller which are connected in sequence. The wireless sensor node further comprises an uninterrupted power system which comprises a lithium battery and a solar panel. When the output voltage of the solar panel is smaller than a first preset threshold value, the lithium battery provides power for the wireless sensor network node. When the output voltage of the solar panel is larger than or equal to the first preset threshold value, the solar panel provides power for the wireless sensor node. When the output voltage of the solar panel is larger than or equal to a second preset threshold value, the solar panel provides power for the wireless sensor node and charges the lithium battery. The wireless sensor node can work for a long time.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of wireless sensor node and wireless sensor network node system.
Background technology
Due to the particularity of application, wireless sensor network is usually deployed in the inaccessible region of the mankind and performs long-continued monitor and forecast task, and the working life of node and the life span of network require to reach several months or several years.And existing wireless sensor node generally adopts the powered battery of finite capacity, be very difficult or even infeasible to the node replacement battery of enormous amount to extend the sensor node life-span.Therefore the battery power of wireless sensor node can how effectively be supplemented, thus the working life of real raising node and network and life cycle, become the core of current sensor node hardware design.
Existing wireless sensor node uses the sub-battery of the disposable lithium of finite energy as the energy usually, various algorithm is have employed to reduce system energy consumption to improve the life cycle of node in prior art, although this method can play certain energy-saving effect, on the one hand but the function of the function of wireless sensor node and even whole wireless sensor network receives certain restriction and impact.On the other hand, the energy supplemented is not had can to exhaust very soon yet.Therefore, energy problem has just become the key factor of the whole wireless sensor network life cycle of restriction.
In view of the above problems, need badly and a kind of wireless sensor node is provided, can realize working long hours, thus improve working life and the life cycle of node and network.
Summary of the invention
For defect of the prior art, the invention provides a kind of wireless sensor node and wireless sensor network node system, working long hours of wireless sensor node can be realized.
First aspect, the invention provides a kind of wireless sensor node, and described wireless sensor node comprises the transducer, A/D converter and the master controller that connect successively;
Described wireless sensor node also comprises uninterruptible power system, and described uninterruptible power system comprises lithium battery and solar panel;
When described solar panel output voltage is lower than the first predetermined threshold value, described lithium battery is that described wireless sensor node is powered;
When described solar panel output voltage is more than or equal to the first predetermined threshold value, described solar panel is that described wireless sensor node is powered.
When described solar panel output voltage is more than or equal to the second predetermined threshold value, described solar panel is not only powered for described wireless sensor node, is also described lithium cell charging.
Preferably, described wireless sensor node also comprises control switch, described control switch is used for opening described uninterruptible power system at the first Preset Time point, and closes described uninterruptible power system at the second Preset Time point corresponding with described first Preset Time point.
Preferably, the number of described first Preset Time point and the second Preset Time point is more than one.
Preferably, described A/D converter is the analog-digital chip of 24.
Preferably, described A/D converter is AD7799 analog-digital chip.
Preferably, be provided with low pass filter between described transducer and described A/D converter, described low pass filter is for filtering the power supply crosstalk signal in the data of described transducer collection.
Preferably, radio receiving transmitting module is provided with in described master controller;
Be provided with the magnetic bead with default resistance value between described A/D converter and described master controller, described magnetic bead is used for the VDD-to-VSS of radio receiving transmitting module and the VDD-to-VSS of A/D converter to isolate, for A/D converter provides a pure VDD-to-VSS.
Second aspect, the invention provides a kind of wireless sensor network node system, comprises aggregation node, data center and multiple wireless sensor node;
Each described wireless sensor node collects node described in the data of collection being sent to by short-distance wireless mode;
The data of described multiple wireless sensor node collection are sent to data center by long distance wireless communication mode by described aggregation node.
Preferably, described short-distance wireless communication mode is ZigBee communication.
Preferably, described long distance wireless communication mode comprise GPRS communication communicate with short message SMS.
As shown from the above technical solution, wireless sensor node of the present invention and wireless sensor network node system, by arranging uninterruptible power system, described uninterruptible power system comprises lithium battery and solar panel, described uninterruptible power system not only can provide continual power supply for described wireless sensor node, and can be lithium cell charging wherein, thus make wireless sensor node can realize working long hours, thus improve working life and the life cycle of node and network.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the wireless sensor node that the embodiment of the present invention one provides;
Fig. 2 is the structural representation of the wireless sensor node that the preferred embodiment of of the embodiment of the present invention provides;
Fig. 3 is the structural representation of the wireless sensor network node system that the embodiment of the present invention two provides.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 shows the structural representation of the wireless sensor node that the embodiment of the present invention one provides, and described wireless sensor node comprises the transducer 11, A/D converter 12 and the master controller 13 that connect successively;
Described wireless sensor node also comprises uninterruptible power system 14, and described uninterruptible power system comprises lithium battery and solar panel;
When described solar panel output voltage is lower than the first predetermined threshold value, described lithium battery is that described wireless sensor node is powered;
When described solar panel output voltage is more than or equal to the first predetermined threshold value, described solar panel is that described wireless sensor node is powered.
When described solar panel output voltage is more than or equal to the second predetermined threshold value, described solar panel is not only powered for described wireless sensor node, is also described lithium cell charging.
Preferably, described first predetermined threshold value is 2.6V.
Preferably, described second predetermined threshold value is 3.0V.
Wireless sensor node described in the embodiment of the present invention, by arranging uninterruptible power system, described uninterruptible power system comprises lithium battery and solar panel, described uninterruptible power system not only can provide continual power supply for described wireless sensor node, and can be lithium cell charging wherein, thus make wireless sensor node can realize working long hours, thus improve working life and the life cycle of node and network.
The transducer that wireless sensor node connects mainly adopts 2.5V supply power voltage, although general less to current requirements, if the long-time continual use of transducer still can cause the quick loss of electric energy, makes lithium battery be in charged state for a long time.Because charging and discharging lithium battery number of times is limited, long-term charging can make lithium battery lose efficacy.For this reason, in order to improve node working life further, reduce energy content of battery consumption, only the opening power again when sensor node needs perception, at other times powered-down.
Therefore, in a preferred embodiment of the embodiment of the present invention one, see Fig. 2, described wireless sensor node also comprises control switch 15, described control switch 15 for opening described uninterruptible power system at the first Preset Time point, and cuts out described uninterruptible power system at the second Preset Time point corresponding with described first Preset Time point.
The time needing perception data due to described sensor node may be multiple interlude section, and therefore the number of described first Preset Time point and the second Preset Time point is more than one.
Such as, sensor node needs the time period of perception data to be 9:00 ~ 11:00,14:00 ~ 16:00 and 19:00 ~ 20:00, so described control switch 15 opens described uninterruptible power system at the first Preset Time point 9:00, and closes described uninterruptible power system at the second Preset Time point 11:00 corresponding with described first Preset Time point 9:00;
And described control switch 15 opens described uninterruptible power system at the first Preset Time point 14:00, and close described uninterruptible power system at the second Preset Time point 16:00 corresponding with described first Preset Time point 14:00;
And described control switch 15 opens described uninterruptible power system at the first Preset Time point 19:00, and close described uninterruptible power system at the second Preset Time point 20:00 corresponding with described first Preset Time point 19:00.
Wherein, described A/D converter is the analog-digital chip of 24.
In order to improve the precision of data acquisition, described A/D converter adopts the analog-digital chip of 24.
Preferably, described A/D converter is the AD7799 analog-digital chip of 24.
The principal element affecting sensor data acquisition error have from radio-frequency module high-frequency crosstalk and carry out the power supply crosstalk of sensor itself.
In order to reduce the power supply crosstalk carrying out sensor itself, see Fig. 2, in a preferred embodiment of the embodiment of the present invention one, low pass filter 16 is provided with between described transducer 11 and described A/D converter 12, described low pass filter 16 is for filtering the power supply crosstalk signal in the data of described transducer collection, and described low pass filter 16 filters the crosstalk signal higher than 50Hz.
Wherein, radio receiving transmitting module is provided with in described master controller.
Except the power supply crosstalk of transducer itself, other crosstalks are all import ADC sampling channel into by VDD-to-VSS.In order to reduce the crosstalk from VDD-to-VSS, see Fig. 2, in a preferred embodiment of the embodiment of the present invention one, the magnetic bead 17 with default resistance value is provided with between described A/D converter 12 and described master controller 13, described magnetic bead 17 for the VDD-to-VSS of radio receiving transmitting module and the VDD-to-VSS of A/D converter are isolated, for A/D converter provides a pure VDD-to-VSS.
Preferably, described default resistance value is 300 Europe.
Fig. 3 shows the structural representation of the embodiment of the present invention two wireless sensor network node system.Described wireless sensor network node system comprises aggregation node 21, data center 22 and multiple wireless sensor node 23;
Each described wireless sensor node 23 collects node 21 described in the data of collection being sent to by short-distance wireless mode;
The data that described multiple wireless sensor node 23 gathers are sent to data center 22 by long distance wireless communication mode by described aggregation node 21.
The data that described data center 22 gathers for storing described multiple wireless sensor node 23.
Wherein, described short-distance wireless communication mode is ZigBee communication.
Wherein, described long distance wireless communication mode comprises GPRS and communicates with short message SMS.
Aggregation node is the intermediate member that wireless sensor node and data center carry out exchanges data.Its function mainly comes from the data of sensor node by wireless sensor network reception and sends data to data center.Present invention achieves GPRS and the note SMS telecommunications functions of aggregation node and data center, overcome the application limitation that conventional wireline communication causes sensor network.
Wireless sensor network node system described in the embodiment of the present invention, its beneficial effect and the wireless sensor node described in embodiment one similar, do not repeat them here.
Above embodiment only for illustration of technical scheme of the present invention, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a wireless sensor node, is characterized in that, described wireless sensor node comprises the transducer, A/D converter and the master controller that connect successively;
Described wireless sensor node also comprises uninterruptible power system, and described uninterruptible power system comprises lithium battery and solar panel;
When described solar panel output voltage is lower than the first predetermined threshold value, described lithium battery is that described wireless sensor node is powered;
When described solar panel output voltage is more than or equal to the first predetermined threshold value, described solar panel is that described wireless sensor node is powered.
When described solar panel output voltage is more than or equal to the second predetermined threshold value, described solar panel is not only powered for described wireless sensor node, is also described lithium cell charging.
2. wireless sensor node according to claim 1, it is characterized in that, also comprise control switch, described control switch is used for opening described uninterruptible power system at the first Preset Time point, and closes described uninterruptible power system at the second Preset Time point corresponding with described first Preset Time point.
3. wireless sensor node according to claim 2, is characterized in that, the number of described first Preset Time point and the second Preset Time point is more than one.
4., according to the arbitrary described wireless sensor node of claims 1 to 3, it is characterized in that, described A/D converter is the analog-digital chip of 24.
5. wireless sensor node according to claim 4, is characterized in that, described A/D converter is AD7799 analog-digital chip.
6. according to the arbitrary described wireless sensor node of claim 1,2,3,5, it is characterized in that, be provided with low pass filter between described transducer and described A/D converter, described low pass filter is for filtering the power supply crosstalk signal in the data of described transducer collection.
7., according to the arbitrary described wireless sensor node of claim 1,2,3,5, it is characterized in that, in described master controller, be provided with radio receiving transmitting module;
Be provided with the magnetic bead with default resistance value between described A/D converter and described master controller, described magnetic bead is used for the VDD-to-VSS of radio receiving transmitting module and the VDD-to-VSS of A/D converter to isolate, for A/D converter provides a pure VDD-to-VSS.
8. a wireless sensor network node system, is characterized in that, comprise aggregation node, data center and multiple as right want 1,2,3,5 arbitrary as described in wireless sensor node;
Each described wireless sensor node collects node described in the data of collection being sent to by short-distance wireless mode;
The data of described multiple wireless sensor node collection are sent to data center by long distance wireless communication mode by described aggregation node.
9. system according to claim 8, is characterized in that, described short-distance wireless communication mode is ZigBee communication.
10. system according to claim 8, is characterized in that, described long distance wireless communication mode comprises GPRS communication and communicates with short message SMS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510073593.9A CN104717728A (en) | 2015-02-12 | 2015-02-12 | Wireless sensor node and wireless sensor network node system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510073593.9A CN104717728A (en) | 2015-02-12 | 2015-02-12 | Wireless sensor node and wireless sensor network node system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104717728A true CN104717728A (en) | 2015-06-17 |
Family
ID=53416573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510073593.9A Pending CN104717728A (en) | 2015-02-12 | 2015-02-12 | Wireless sensor node and wireless sensor network node system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104717728A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101170836A (en) * | 2007-10-30 | 2008-04-30 | 东南大学 | Remote image monitoring system based on radio sensor network |
| CN101359022A (en) * | 2008-08-20 | 2009-02-04 | 东南大学 | Ultra-high pressure circuit monitoring system for solar power generation |
| CN201532210U (en) * | 2009-10-27 | 2010-07-21 | 西安迅腾科技有限责任公司 | Solar power supply wireless sensor network node |
| CN102104990A (en) * | 2010-12-27 | 2011-06-22 | 电子科技大学 | Wireless sensor network node structure with long service life and high precision |
-
2015
- 2015-02-12 CN CN201510073593.9A patent/CN104717728A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101170836A (en) * | 2007-10-30 | 2008-04-30 | 东南大学 | Remote image monitoring system based on radio sensor network |
| CN101359022A (en) * | 2008-08-20 | 2009-02-04 | 东南大学 | Ultra-high pressure circuit monitoring system for solar power generation |
| CN201532210U (en) * | 2009-10-27 | 2010-07-21 | 西安迅腾科技有限责任公司 | Solar power supply wireless sensor network node |
| CN102104990A (en) * | 2010-12-27 | 2011-06-22 | 电子科技大学 | Wireless sensor network node structure with long service life and high precision |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206019730U (en) | Ambient parameter collection transmitting terminal and environmental parameter acquisition system | |
| CN203377624U (en) | Communication lithium iron phosphate battery remote communication alarm device | |
| CN103107565A (en) | Static balanced method of battery management system of electric vehicle | |
| CN105553030A (en) | Uninterruptable power supply management system of lithium battery | |
| CN104505892A (en) | Intelligent control system of charging and discharging battery pack | |
| CN203086196U (en) | Multi-section series lithium battery equalization circuit | |
| CN103825266A (en) | Vehicle-mounted charger rear-stage output anti-reversal connection circuit | |
| CN103795150B (en) | A kind of mixed energy storage system and application process thereof | |
| CN105048586A (en) | Automatic balance control device and method for storage batteries | |
| CN204859569U (en) | Wireless sensor node and wireless sensor network node system | |
| CN203086217U (en) | Lithium battery management system used for electromobile | |
| CN105759124A (en) | Method for on-line detection on internal resistance of power battery | |
| CN103413980A (en) | Intelligent hybrid battery management system | |
| CN202330669U (en) | Intelligent on-line monitoring system for lithium battery | |
| CN104717728A (en) | Wireless sensor node and wireless sensor network node system | |
| CN106356942A (en) | Lithium battery system | |
| CN104753139A (en) | Battery charging control device based on boost circuit | |
| CN204887487U (en) | High accuracy wireless sensor node and wireless sensor network node system | |
| CN205900735U (en) | Lithium ion power batteries protection device | |
| CN204145051U (en) | A kind of electric automobile lithium battery charging station | |
| CN203387207U (en) | An equalization circuit of a battery set | |
| CN202872419U (en) | LED emergency lamp battery management device | |
| CN208227020U (en) | A kind of low-consumption wireless communication equipment | |
| CN204060791U (en) | Mine safety monitoring information acquisition instrument | |
| CN104717729A (en) | High-precision wireless sensor node and wireless sensor network node system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 610063 No. 1, No. 3, building 70, Xinguang Road, 3, Chengdu hi tech Development Zone, Sichuan, 5 Applicant after: Sichuan Yinhaitianyi Information Technology Co., Ltd. Address before: 610063, Sichuan, Jinjiang District, Chengdu three color road 163, Yinhai core block B block 301-302 Applicant before: Sichuan Yinhaitianyi Information Technology Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150617 |
|
| RJ01 | Rejection of invention patent application after publication |