CN106453469A - Self-powered Internet of Things structure health monitoring system with low power consumption - Google Patents
Self-powered Internet of Things structure health monitoring system with low power consumption Download PDFInfo
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- CN106453469A CN106453469A CN201610166684.1A CN201610166684A CN106453469A CN 106453469 A CN106453469 A CN 106453469A CN 201610166684 A CN201610166684 A CN 201610166684A CN 106453469 A CN106453469 A CN 106453469A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
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- H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
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Abstract
The invention provides a self-powered Internet of Things structure health monitoring system with low power consumption. The system comprises a self-powered acceleration sensor node for acquiring field monitoring data, a self-powered gateway for connecting a sensor network with a cloud platform, and the cloud platform for data processing analysis and displaying; and the self-powered acceleration sensor node is connected with the cloud platform through the self-powered gateway. The system provided by the invention has the features of low power consumption, high reliability, low cost, self powering and real-time monitoring; the node communication and data processing energy consumption is lowered through the model selections and designs of the self-powered acceleration sensor node hardware and software; a piezoelectric power storage device and a solar panel are used for respectively replenishing energy for the self-powered acceleration sensor node and the self-powered gateway; and through the cloud server construction and the web end design, the real-time processing analysis of the monitoring data, the real-time displaying of the monitoring data at a mobile terminal, the user and project management, and the instruction sending and other functions are realized.
Description
Technical field
The invention belongs to engineering structure monitoring field, be specifically related to the healthy prison of a kind of self-powered internet of things structure of low-power consumption
Examining system.
Background technology
With the economic development of China, the construction of large scale civil engineering structure is increasing, such as super-span space structure
Gymnasium, across the super-span bridge of Jiang Yuehai, large hydraulic engineering etc., outstanding features of these buildings are：The use time is long, makes
With bad environments, economy or political significance are great.But civil engineering structure under arms during, environmental attack, material can be suffered
Expect the coupling of aging, fatigue effect and mutation effect etc. factor, produce damage accumulation, thus cause degradation resistance, lead
Cause the generation of hidden danger.Therefore, in order to ensure security, applicability and the durability of structure, countries in the world particularly developed country
All trying to explore to can be used for the effective structure health monitoring method of civil infrastructure and system.
The health monitoring of structure experienced by a longer evolution, its correlation detection technology, data processing method and
Constructional aspect Assessment theory is also constantly perfect.At present, optical fiber sensing technology is usually used in monitoring structural health conditions, can the pass of monitoring of structures
Key parameter, such as dynamic characteristics, stress etc..Using optical fiber sensing technology to have highly sensitive, dynamic range is big, measures scope
The advantage such as wide, but optical fiber itself is soft and slender light thin, and easily broken, cost height is buried in encapsulation underground, also needs to be equipped with certain volume and costliness at the scene
Fiber optical transceiver, the higher market price have impact on its large-scale engineer applied.Additionally, with ICT not
Disconnected progressive, wireless senser and network system thereof due to its miniaturization, maintenance cost integrated, low, lack the features such as set-up time,
Also it is used in structural healthy monitoring system.Due to sensing node many employing battery power, node with internodal communicate with
And data transmit-receive to consume big energy.Owing to using remote being not easy to of bad environments to change battery, it is desirable to system is long
Monitoring continuously.Therefore, in actual monitoring structural health conditions is applied, existing monitoring system usually lost efficacy owing to electric energy exhausts,
Or due to limited electrical power, and can not efficient communication.
Content of the invention
In order to solve the problems referred to above, the present invention provides a kind of low-power consumption self-powered internet of things structure health monitoring systems,
Described system includes the self-powered acceleration sensing node for obtaining field monitoring data, is used for connecting sensing network and puts down with cloud
The self-powered gateway of platform and the cloud platform for Data Management Analysis and displaying, described self-powered acceleration sensing node is by certainly
Power supply network closes and connects cloud platform；
Further, described self-powered acceleration sensing node is powered with lithium ion battery by vibrating piezoceramic material, institute
State self-powered gateway to be powered with lithium ion battery by solar panels；
Further, described self-powered acceleration sensing node includes sensing node CPU, sensing node power interface, power supply pipe
Reason chip, vibration piezoelectric ceramic piece and sensing node battery, described power management chip one end connects vibration piezoelectric ceramics respectively
Piece and sensing node battery, the other end connects sensing node CPU by sensing node power interface；
Further, described self-powered gateway includes gateway CPU, solar panels, gateway battery, solar cell board management mould
Block and gateway power interface, described gateway power interface one end connects gateway CPU by solar cell board management module, separately
One end connects gateway battery and solar panels respectively；
Further, described self-powered gateway also includes GPRS module, Temperature Humidity Sensor, gateway RF module, host computer serial ports
With gateway sensor interface, described GPRS module one end connects cloud platform, and the other end connects gateway CPU, described gateway RF module
One end connects self-powered acceleration sensing node, and the other end connects gateway CPU, and described Temperature Humidity Sensor passes through sensor interface
Connecting gateway CPU, described host computer serial ports connects gateway CPU；
Further, described self-powered acceleration sensing node also includes sensing node RF module and acceleration sensing module, institute
Stating acceleration sensing module and connecting sensing node CPU, described sensing node CPU connects gateway RF mould by sensing node RF module
Block；
Further, described cloud platform includes Cloud Server and Web end, and described Cloud Server is entered by http protocol with Web end
Row communication, described Cloud Server uses linux system, selects Apache HTTP Server as web page server, uses
Mysql Relational DBMS, uses Python Web framework and asynchronous network storehouse Tornado to provide for Web end real
When Web service, described self-powered gateway is communicated by Socket communication protocol with cloud platform, carries out data and passes in real time
Defeated.
Beneficial effects of the present invention is as follows：
1）Present system possesses the features such as low-power consumption, high reliability, low cost, self-powered, real-time monitoring；
2）By type selecting and the design of self-powered acceleration sensing node hardware and software, reduce node communication and process energy with data
Consumption；
3）By using piezoelectric energy-storage device and solar panels, respectively self-powered acceleration sensing node and self-powered gateway is mended
Fill energy；
4）Built and web terminal design by cloud server, it is achieved the real-time Treatment Analysis of Monitoring Data, mobile terminal Monitoring Data
Real-time exhibition, the function such as user and project management and instruction transmission；
5）Low power loss communication agreement and low-power consumption hardware selection is used to reduce system energy consumption, it is achieved remote real time monitoring and control,
Wide area interconnects.
Brief description
Fig. 1 is the structural representation of present system；
Fig. 2 is the structure chart of the self-powered acceleration sensing node of present system；
Fig. 3 is the structure chart of the self-powered gateway of present system；
Fig. 4 is the WEB terminal cross section level graph of a relation of present system.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is explained in further detail.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and
It is not used in the restriction present invention.On the contrary, the present invention cover any be defined by the claims do in the spirit and scope of the present invention
Replacement, modification, equivalent method and scheme.Further, in order to make the public have a better understanding the present invention, below to this
During the details of invention describes, detailed describe some specific detail sections.Do not have these thin for a person skilled in the art
The description of joint part also can understand the present invention completely.
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but not as a limitation of the invention.
Below for the present invention enumerate most preferred embodiment：
As Figure 1-Figure 4, the present invention provides a kind of low-power consumption self-powered internet of things structure health monitoring systems, described system
Including for the self-powered acceleration sensing node obtaining field monitoring data, for connecting the confession of sensing network and cloud platform
Electrical network closes and the cloud platform for Data Management Analysis and displaying, and described self-powered acceleration sensing node passes through self-powered gateway
Connect cloud platform.
Described self-powered gateway includes gateway CPU, GPRS module, solar panels, gateway battery, Temperature Humidity Sensor, net
Close RF module, host computer serial ports, solar cell board management module, gateway sensor interface and gateway power interface, described
GPRS module one end connects cloud platform, and the other end connects gateway CPU, and described gateway RF module one end connects self-powered acceleration sense
Knowing node, the other end connects gateway CPU, and described gateway power interface one end connects gateway by solar cell board management module
CPU, the other end connects gateway battery and solar panels respectively, and described Temperature Humidity Sensor connects gateway by sensor interface
CPU, described host computer serial ports connects gateway CPU.
Described self-powered acceleration sensing node includes sensing node CPU, sensing node RF module, acceleration sensing mould
Block, sensing node power interface, power management chip, vibration piezoelectric ceramic piece and sensing node battery, described power management core
Piece one end connects vibration piezoelectric ceramic piece and sensing node battery respectively, and the other end connects perception by sensing node power interface
Node cpu, described acceleration sensing module connects sensing node CPU, and described sensing node CPU is by sensing node RF module even
Connect gateway RF module.
Described self-powered gateway gateway is communicated by Socket communication protocol with cloud platform, carries out data and passes in real time
Defeated, described cloud platform includes Cloud Server and Web end, and described Cloud Server is communicated by http protocol with Web end, described
Cloud Server uses linux system, selects Apache HTTP Server as web page server, uses Mysql relationship type number
According to base management system, Python Web framework and asynchronous network storehouse Tornado is used to provide Real-Time Web service for Web end.
The operation interface of described Web end uses Sencha Architect software to be designed exploitation, web interface possesses
User and keeper's login feature, data drawing list visualization function, monitoring state display function and Monitoring Data export function
Etc. function, the interface of Web end includes altogether three grades of interfaces.Wherein one-level interface includes：Login interface, project management interface
With personal management center interface.Secondary interface includes：Register interface, give for change cryptographic interface, project add interface, sub-project monitoring
Assessment interface, personal information interface, password modification interface and data management interface.Three grades of interfaces include：Gateway interpolation interface,
Sensor adds interface, monitoring subject sensor distribution interface, Real-time Monitoring Data display interface, health Evaluation interface.
Heretofore described self-powered acceleration sensing node uses 32 low-power consumption arm processors, and utilizes high-performance
Power management scheme and high-precision accurate MEMS acceleration transducer.Use low-power dissipation power supply managing chip, to battery with
And external power supply is managed.Communication uses CC1101 radio frequency chip, utilizes GFSK transmission means, improves the transmission matter of system
Amount, and utilize low-power consumption awakening technology, at utmost reduce power consumption.Described self-powered acceleration sensing node, possesses low-power consumption
With self-powered characteristic.In terms of low-power consumption, the main data that reduce process the power consumption with node communication.Data are processed selects ultralow work(
Consumption STM32L152RC processor, the power supply voltage range of super low-power consumption STM32L15RC is 1.65 ~ 3.6V, operating temperature range
For-40 ~+85 ° of C, have one group of complete energy-saving mode of applicable low-power consumption application design；RF communication uses the CC1101 of TI,
It is the wireless transceiver of below the 1GHz of low cost, design for the wireless application of extremely low power dissipation, can be by configuring realization 315
The global ISM open frequency range work of ~ 915MHz.This chip possesses the various abundant work(such as low-power consumption mode, dormancy awakening pattern
Can, these functions can be utilized to reach high efficiency low power operation；Data acquisition uses the accurate MEMS acceleration transducer of ADI
ADXL345, makes the ultralow operating power consumption that sensing node has 23 to 140 μ A, dormancy time power consumption as little as 0.1 μ A, this sensing
The integrated memory management system of device uses one 32 grades first in first out (FIFO) buffers, can be used for storing data, thus
Host-processor load is down to minimum, and reduces total system power consumption.
In terms of self-powered, utilize designed power management chip, battery and external power supply are managed.Use
The micro-energy of Linear LTC3331 collects chip, and this chip oneself power consumption only needs 950nA, meets the requirement of low-power consumption.This integrated chip
One high voltage energy scavenging source and a buck-boost DC/DC converter powered by rechargeable battery.Profit
Use this chip, from external vibrations piezoelectric ceramic piece, electric energy can be absorbed, reach micro-collection of energy purpose.Additionally, also
Can reach battery management function by management of charging and discharging is carried out to external lithium ion battery.Due to cell voltage output
3.7 V, charging finishes 4.2V, for being supplied to the 3.3V voltage that mainboard needs, this chip can be used to be depressured, and provides system institute
The operating voltage needing.
Self-powered gateway is the communication tie connecting sensing network and cloud platform.Self-powered gateway is communicated by 3G/GPRS
With Cloud Server communication, it is possible to by serial ports and on-the-spot main-machine communication；By 432 ~ 434M frequency range and sensing network communication.Confession
Electrical network closes and uses external power supply to power（12V）, using 32 arm processors, possess sensor management, data send, data are temporary
The function such as deposit, some ambient parameters can be gathered, such as humiture etc..
In terms of self-powered, self-powered gateway embedded solar cell board management module, possess MPPT solar energy maximum work
Rate point following function, can make full use of solar recharging, full-automatic intelligent Charge Management to greatest extent, use ultra low differential pressure
Design is to reach low-power consumption and more high conversion efficiency.Operating temperature is-40 DEG C to+85 DEG C.Conversion efficiency：Max:93% Peak:
95% different illumination conditions is different.Charging modes：Full-automatic intelligent three stage charge mode, follows the tracks of solar power big
Little, automatically adjust charging current.The scope of application：1W-100W, 9V-28V are suitable for 9V, 12V, 18V, 24V solar cell
Plate, can give storage battery, NI-G, ni-mh, lithium battery（Battery pack）Charging, wind-driven generator, solar street light etc..
Cloud Server connects self-powered gateway, it is thus achieved that the data sent from self-powered gateway, and feedback result or instruction
To gateway.Communication between self-powered gateway and Cloud Server uses Socket communication mechanism, is used for describing IP address and port, is
The handle of one communication chain, can be used to realize the communication between different virtual machine or different computer, its essence is to TCP/
The encapsulation of IP agreement and application, mainly solve how data are transmitted in a network.Cloud Server props up as the backstage of web interface
Hold, and the communication between Web end uses http protocol, http protocol i.e. HTTP, be the basis of Web networking, also
It is one of agreement that phone network is conventional.Http protocol is built upon a kind of application on Transmission Control Protocol, and it can make browser
More efficient, make network transmission reduce.
Cloud platform backstage Cloud Server can provide gateway accessing, sensor to add, user WEB accesses, data store,
WEB terminal inquiry, management, WEB terminal chart show, provide api interface, and supply is analyzed the functions such as operation to data.Web interface
Possess user and keeper's login feature, data drawing list visualization function, monitoring state display function and Monitoring Data derive
The functions such as function.
Embodiment described above, the simply one of the present invention more preferably detailed description of the invention, those skilled in the art
The usual variations and alternatives that member is carried out in the range of technical solution of the present invention all should comprise within the scope of the present invention.
Claims (7)
1. the self-powered internet of things structure health monitoring systems of a low-power consumption, it is characterised in that described system includes for obtaining
The self-powered acceleration sensing node of enchashment field Monitoring Data, for connecting self-powered gateway and the use of sensing network and cloud platform
In the cloud platform of Data Management Analysis and displaying, described self-powered acceleration sensing node connects cloud by self-powered gateway puts down
Platform.
2. system according to claim 1, it is characterised in that described self-powered acceleration sensing node is by vibration piezoelectricity
Ceramic material is powered with lithium ion battery, and described self-powered gateway is powered with lithium ion battery by solar panels.
3. system according to claim 2, it is characterised in that described self-powered acceleration sensing node includes sensing node
CPU, sensing node power interface, power management chip, vibration piezoelectric ceramic piece and sensing node battery, described power management core
Piece one end connects vibration piezoelectric ceramic piece and sensing node battery respectively, and the other end connects perception by sensing node power interface
Node cpu.
4. system according to claim 3, it is characterised in that described self-powered gateway include gateway CPU, solar panels,
Gateway battery, solar cell board management module and gateway power interface, solar-electricity is passed through in described gateway power interface one end
Pond board management module connects gateway CPU, and the other end connects gateway battery and solar panels respectively.
5. system according to claim 4, it is characterised in that described self-powered gateway also includes GPRS module, humiture
Sensor, gateway RF module, host computer serial ports and gateway sensor interface, described GPRS module one end connects cloud platform, another
End connects gateway CPU, and described gateway RF module one end connects self-powered acceleration sensing node, and the other end connects gateway CPU, institute
Stating Temperature Humidity Sensor and connecting gateway CPU by sensor interface, described host computer serial ports connects gateway CPU.
6. system according to claim 5, it is characterised in that described self-powered acceleration sensing node also includes that perception saves
Point RF module and acceleration sensing module, described acceleration sensing module connects sensing node CPU, and described sensing node CPU leads to
Cross sensing node RF module and connect gateway RF module.
7. system according to claim 6, it is characterised in that described cloud platform includes Cloud Server and Web end, described cloud
Server is communicated by http protocol with Web end, and described Cloud Server uses linux system, selects Apache HTTP
Server, as web page server, uses Mysql Relational DBMS, uses Python Web framework and asynchronous network
Network storehouse Tornado provides Real-Time Web service for Web end, and described self-powered gateway gateway is communicated by Socket with cloud platform
Agreement communicates, and carries out real-time data transmission.
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Cited By (7)
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| CN107147691A (en) * | 2017-03-28 | 2017-09-08 | 浙江大学 | A kind of heavy construction structure wireless sensor monitoring network system for improving sample frequency |
| CN108775956A (en) * | 2018-05-24 | 2018-11-09 | 北京科技大学 | A kind of wireless vibration cantilever beam sensor based on piezoelectricity |
| WO2019002619A1 (en) * | 2017-06-30 | 2019-01-03 | Kurotec - Kts Kunststofftechnik Gmbh | System for the non-destructive health monitoring of fiber-reinforced structures such as fiber-reinforced hollow parts |
| CN109391916A (en) * | 2018-08-24 | 2019-02-26 | 中国科学院上海微系统与信息技术研究所 | A kind of Internet of Things Intellisense terminal |
| CN109993953A (en) * | 2018-01-02 | 2019-07-09 | 沈飞 | A kind of low-power consumption power supply module |
| CN110262356A (en) * | 2019-07-08 | 2019-09-20 | 广东易百珑智能科技有限公司 | Confess electric control system, wireless controller and wireless connection method and control method |
| US11899442B2 (en) | 2019-03-16 | 2024-02-13 | Livehooah Technologies Private Limited | System and method for structural health monitoring using internet of things and machine learning |
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Application publication date: 20170222 |