CN203340298U - Carbon nanotube cement-based composite material sensor test system - Google Patents
Carbon nanotube cement-based composite material sensor test system Download PDFInfo
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- CN203340298U CN203340298U CN2012207266040U CN201220726604U CN203340298U CN 203340298 U CN203340298 U CN 203340298U CN 2012207266040 U CN2012207266040 U CN 2012207266040U CN 201220726604 U CN201220726604 U CN 201220726604U CN 203340298 U CN203340298 U CN 203340298U
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 20
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 238000012360 testing method Methods 0.000 title claims abstract description 13
- 239000004568 cement Substances 0.000 title abstract description 7
- 230000036541 health Effects 0.000 claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims abstract description 3
- 238000012544 monitoring process Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000008447 perception Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- Arrangements For Transmission Of Measured Signals (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The utility model discloses a carbon nanotube cement based composite materials sensor test system, comprising a sensor sub-system constituted by combining the carbon nanotube cement based composite material sensor test system and a temperature-humidity complementary sensor, a data-collection-processing-and-wireless communication sub-system, and a base station and control center sub-system. The carbon nanotube cement based composite material sensor test system is characterized in that the sensor sub-system is constituted by combining the carbon nanotube cement based composite material sensor test system and the temperature-humidity complementary sensor, that the sensor sub-system is connected to the data-collection-and-processing subsystem and a wireless receive-send device, and that a power supply sub-system is connected to the wireless receive-send device and is connected to a radio frequency power amplifier which is connected to a node of a base station and gateway equipment and is connected to a supervisor center of a supervision system. Through above arrangement, an engineering structure health supervision system based on the carbon nanotube cement based composite material sensor is established.
Description
Technical field
The present invention relates to a kind of engineering structure sensor testing system, belong to the engineering structure health monitoring field.
Background technology
Monitoring structural health conditions becomes the study hotspot of the outer engineering field of Present Domestic.In numerous large scale civil engineering building fields such as bridge, tunnel, highway, dam and Military Application field, realize multi-parameter, multi-functional, distributed in real time, the sensing detection network is our goal in research always.Large-scale civil engineering work is subject to the coupling factor of the catastrophe such as load action, the material corrosion of environment is aging for a long time, inevitably produces structural damage and drag decay, thereby causes the resistivity of natural calamity is descended, and causes the catastrophic failure of burst.For heavy construction structural life-time and service ability are slowed down, affected by it, avoid causing burst accident, be necessary civil engineering structure is realized to long-range, real-time, online automatic structure health monitoring.
In the real-time health monitoring systems of engineering structure, sensor subsystem as health monitoring systems foremost and the most basic subsystem, is comprised of a plurality of various kinds of sensors and sensing network.Transducer can be used for load and the response message of perceptual structure, and with physical quantity formal outputs such as electricity, light, sound.The perception material grown up at present and sensing element mainly contain optical fiber, resistance-strain silk, fatigue life silk, piezoelectric, carbon fiber, semi-conducting material and marmem etc.Can make large-scale surface adhesion type or flush type sensing distribution array with these perception materials and sensing element, thereby make the important component of structure or integral body there is apperceive characteristic, with the function of implementation structure Real-Time Monitoring and safe early warning.These transducers are applied some drawbacks and the problem of also existing in the concrete works monitoring structural health conditions.Auxiliary equipment as a large amount of as the needs of Fibre Optical Sensor, the difficulty of deploying to ensure effective monitoring and control of illegal activities, cost costliness; Piezoelectric (as piezoelectric ceramic etc.) is multiplex in simple member in application, and does not mate on material with concrete material, and lacks project quality inspection; Marmem or more expensive, or unstable properties, and in the non-resilient stage, the relation of resistance and strain is non-linear, to signal analysis, brings difficulty etc.For Reduce measurement error, guarantee that the coupling of transducer and surrounding medium is very important.In the real-time health monitoring of large-scale concrete engineering structure, need to utilize the new sensitive material with cement concrete medium coupling to develop novel sensor (as carbon nano-tube cement-base composite material transducer, the patent No.: ZL201220106580.9), reach the good result that transducer and surrounding medium mate fully.
Along with the raising that monitoring requires, number of sensors, there is the complexity of pending data volume and system all will greatly increase.If the wired mode of employing tradition is carried out monitoring structural health conditions, not only wiring is loaded down with trivial details, and the heavy burden of a large amount of wiring meeting increase monitoring targets, and the time that later maintenance is spent and funds are also considerable.This traditional centralized monitoring system of serial also can affect reliability and the flexibility of system to a great extent simultaneously.Therefore, be necessary that research adopts the distributed wireless technology to substitute traditional centralized cable technology.Adopt wireless sensor network technology, the various environment in Real-Time Monitoring, perception and collection network distributed areas or the information of monitoring target, and these information are processed and transmitted.
Utilize New Type of Carbon nanotube cement-base composite material transducer to set up sensor testing system, adopt wireless sensor network technology, form carbon nano-tube cement-base composite material sensor testing system, the problem, the transmission range that have not only solved wiring have obtained large increase, and system stability, be not subject to the destruction of environment.Monitoring structural health conditions is had to most important theories meaning and practical value.
Summary of the invention
The present invention utilizes carbon nano-tube cement-base composite material transducer measuring system constructing, adopts wireless sensor network technology, and for the real-time health monitoring of engineering structure, technical scheme is as follows:
1, utilize carbon nano-tube cement-base composite material sensor production strain transducer unit, needing test node to embed layout, civil engineering structure load and effect are carried out to Real-Time Monitoring, and exported with the signal of telecommunication.Lay the temperature and humidity compensation sensor unit at this Nodes, carry out the humiture index of monitored area simultaneously.Carbon nano-tube cement-base composite material transducer and temperature and humidity compensation transducer form sensor subsystem, are the most basic and subsystems foremost of health monitoring systems.
2, set up data acquisition process and communication subsystem, two kinds of sensor output signals are transferred to data acquisition process and communication subsystem, this subsystem carries out the operations such as A/D conversion, digital filtering denoising to the digital signal and the data that receive, by the support of power supply unit and radio-frequency power amplifier, data are carried out to wireless transmission.
3, base-station node receives and deal with data information, and the gateway device be connected with base-station node is for wireless sensor network protocols is converted to the IP network agreement, and it and base-station node form base station jointly.In the IP network zone, can data be sent to Surveillance center by internet, in monitoring system Surveillance center, data message is carried out to analyzing and processing.Set up thus the engineering structure health monitoring system based on wireless sensor network.
Content of the present invention produces following beneficial effect:
(1) carbon nano-tube cement-base composite material transducer and surrounding medium mate fully, Reduce measurement error;
(2) adopt wireless sensor network technology, the problem, the transmission range that have not only solved wiring are greatly improved;
(3) utilize the temperature and humidity compensation transducer, guarantee system stability, be not subject to the destruction of environment.
The accompanying drawing explanation
Accompanying drawing is carbon nano-tube cement-base composite material sensor testing system schematic diagram.
Embodiment
With reference to accompanying drawing, embodiments of the invention are described in detail.
Needing test node to embed 30mm * 30mm * 120mm carbon nano-tube cement-base composite material transducer and temperature and humidity compensation transducer.Set up data acquisition process and communication subsystem, the digital signal and the data that receive are carried out to the operations such as A/D conversion, digital filtering denoising, by the support of supplied for electronic system and radio-frequency power amplifier, data are carried out to wireless transmission.Base-station node receives and deal with data information, and connected gateway device is converted to the IP network agreement by wireless sensor network protocols, by internet, data is sent to Surveillance center, sets up the engineering structure health monitoring system based on wireless sensor network.
Claims (1)
1. a carbon nano-tube cement-base composite material sensor testing system, comprising combining utilizes carbon nano-tube cement-base composite material transducer and temperature and humidity compensation transducer to form sensor subsystem, data acquisition process and radio communication subsystem, base station and control centre's subsystem, it is characterized in that: utilize carbon nano-tube cement-base composite material transducer and temperature and humidity compensation transducer to form sensor subsystem, the sensor subsystem connection data gathers and processing subsystem, wireless transceiver, the supplied for electronic system is connected with wireless transceiver, be connected to radio-frequency power amplifier, radio-frequency power amplifier connects base-station node and gateway device, be connected to monitoring system Surveillance center, set up thus the engineering structure health monitoring system based on carbon nano-tube cement-base composite material transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207266040U CN203340298U (en) | 2012-12-26 | 2012-12-26 | Carbon nanotube cement-based composite material sensor test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207266040U CN203340298U (en) | 2012-12-26 | 2012-12-26 | Carbon nanotube cement-based composite material sensor test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203340298U true CN203340298U (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207266040U Expired - Fee Related CN203340298U (en) | 2012-12-26 | 2012-12-26 | Carbon nanotube cement-based composite material sensor test system |
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| Country | Link |
|---|---|
| CN (1) | CN203340298U (en) |
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2012
- 2012-12-26 CN CN2012207266040U patent/CN203340298U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20161226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |