CN207197757U - A kind of structural static experimental data acquisition system based on Zigbee radio communications - Google Patents
A kind of structural static experimental data acquisition system based on Zigbee radio communications Download PDFInfo
- Publication number
- CN207197757U CN207197757U CN201720776979.0U CN201720776979U CN207197757U CN 207197757 U CN207197757 U CN 207197757U CN 201720776979 U CN201720776979 U CN 201720776979U CN 207197757 U CN207197757 U CN 207197757U
- Authority
- CN
- China
- Prior art keywords
- node
- data
- circuit
- strain
- displacement
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of structural static experimental data acquisition system based on Zigbee radio communications, acquisition system Zigbee wireless networks use star structure, including more data collection station nodes, a coordinator node and a computer.The strain of data collection station node collection, displacement, payload data are connected the transmission for realizing data, reception and processing with computer by being wirelessly transmitted to coordinator node, coordinator node by USB.Data collection station node and coordinator node use low power dissipation design, and data collection station node is battery powered, and coordinator node is the power supply provided by computer by USB interface, and the system can be in the onsite application of no AC220V power supplys.Data collection station node of the present utility model can complete signal transmitting, data acquisition and data and be wirelessly transferred, and overall system architecture is simple, have higher cost performance.The utility model does not need site layout project signal wire, reduces workload and working strength.
Description
Technical field
Structural static experimental data acquisition technique field is the utility model is related to, is based especially on Zigbee radio communications
Structural static experimental data acquisition system.
Background technology
Structural static experiment is to determine intensity, rigidity or stability of the engineering structure under dead load effect and the power that carries out
Learn experiment.In addition to it must make loading experiment to the load part of structure, also to make overall or local load performance test to structure.
Experimental subjects can be aircraft, rocket, ship entity structure or model or Large-Scale Equipment mechanical structure or
Building structure is such as：Steel construction, concrete structure, masonry structure, timber structure etc., generally comprise beam column construction, roof truss structure, shell
With the entity or model of grid structure etc..
The purpose of structural static experiment is：1. determine stress distribution and deformation shape of the structure under the effect of certain dead load
State；2. determine the rigidity and stability of structure；3. determine the maximum load-carrying capacity of structure, i.e. intensity；4. commented from the angle of load
Valency structure bears the reasonability of dead load；5. proof theory is analyzed and the reliability of computational methods, or new reason is proposed by experiment
By and computational methods.
Load loading carries out multipoint excitation by loader and distribution beam, load mode generally have electric motor loading,
Hydraulic jack loading, mechanical screw type loading, weight loading etc..Laboratory is adapted to electro-motor and hydraulic jack loading,
Can control manually can also be automatically controlled using computer.Loaded for field condition environment generally use manual control
Mode, such as loaded with hydraulic jack, weight loading.
Determining relevant mechanical parameter value in structural static experiment mainly has load, displacement, strain etc..Usual measuring system
It is made up of transducing part, amplifier section and indicating section.Measurement load often uses pull pressure sensor；Resistance-type is often used in measurement displacement
Displacement transducer, inductive displacement transducer, capacitive displacement transducer；Measuring strain often uses resistance strain sensor.
Structural static experimental data acquisition system is usually to be completed by a computer at present, that is, centralized data are adopted
Collection and control system.Wherein part of data acquisition includes sensor, sensor signal pick-up cabinet, computer acquisition card and computer
Deng part.A usual experimental arrangement strain transducer quantity is up to tens to hundreds of, displacement transducer, load transducer
There are more than ten to tens.Strain transducer, displacement transducer, load transducer are linked into the electricity that transmitter cabinet is transformed into standard
Signal is pressed, then is linked into installation data capture card inside desktop computer.Computer walks around into strain, displacement, load signal
Digital quantity, the data of collection preserve in the form of a file, for later analysis and application.These data can also be with quiet
State curve form shows the result for observing data acquisition on screen.
The major defect of existing centralized data collecting system：
1. price is high, volume weight is big, especially transmitter cabinet price, volume and weight is all bigger, is not suitable for existing
Field uses.
2. the various sensor ordinary circumstances placed in structural static experimental subjects up to tens to hundreds of, wiring
All need to expend many manpower and materials with wiring.
3. signal wire transmission can bring common mode and DM EMI, the transmission quality of signal and the collection essence of signal are had influence on
Degree.
Utility model content
Being tested based on structural static is had more than test object data collection point and the characteristics of scattered, the purpose of this utility model
It is to provide a kind of structural static experimental data acquisition system based on Zigbee radio communications, realizes each test point of experimental subjects
Collection, transmission, processing and the storage of the parameters such as strain, displacement, load.
The technical solution of the utility model is：A kind of structural static experimental data collection system based on Zigbee radio communications
System, acquisition system Zigbee wireless networks use star structure, including more data collection station nodes, a coordinator node
With a computer, the data collection station node is passed through with coordinator node by wireless connection, the coordinator node
USB is connected with computer, and the data collection station node and coordinator node use low power dissipation design, the data acquisition end
End node is battery powered, and the coordinator node is the power supply provided by computer by USB interface.
Further, the data collection station node includes strain acquirement node, displacement acquisition node and load collection
Node.
Further, the strain acquirement node strain detecting uses resistance strain gage sensor.
Further, the displacement acquisition modal displacement detection is using potentiometer displacement sensor, the potentiometer
The change of displacement is converted into the change of potentiometer resistance by displacement transducer.
Further, the load acquisition node loading detection uses pressure sensor or pulling force sensor, the pressure
Load is changed into the change of resistance-strain sheet resistance by sensor or pulling force sensor.
Further, the strain acquirement node is 4 passages, and node includes 4 groups of strain gauge bridges, the strain conversion of 4 tunnels
Circuit, microprocessor CC2530 and auxiliary circuit, data storage circuitry, antenna-matching circuit, power circuit and external connection battery, institute
Strain translation circuit is stated by the voltage signal for being transformed into standard of resistance-strain sheet resistance, then by AD conversion inside CC2530
Device is transformed into digital quantity and is stored in data storage circuitry by processing, and by being wirelessly transmitted to coordinator node.Dependent variable
It is as shown in Figure 2 according to acquisition node composition frame chart.
Further, the displacement acquisition node is calculated as 2 passages, and node includes 2 displacement transducers, 2 tunnel displacements become
Change circuit, microprocessor CC2530 and auxiliary circuit, data storage circuitry, antenna-matching circuit, power circuit and external connection battery；
The shift transformation circuit turns by the voltage signal for being transformed into standard of displacement transducer resistance, then by AD inside CC2530
Parallel operation is transformed into digital quantity and is stored in data storage circuitry by processing, and can be by being wirelessly transmitted to coordinator node.
Displacement data acquisition node composition frame chart is as shown in Figure 3.
Further, the load acquisition node is designed as 2 passages, and node includes 2 force snesors, 2 road force transformations
Circuit, microprocessor CC2530 and auxiliary circuit, data storage circuitry, antenna-matching circuit, power circuit and external connection battery；Institute
The voltage signal for being transformed into standard that force transformation circuit strains force snesor output resistance sheet resistance is stated, then by CC2530
Internal A/D converter is transformed into digital quantity and is stored in data storage circuitry by processing, and can be coordinated by being wirelessly transmitted to
Device node.Payload data acquisition node composition frame chart is as shown in Figure 4.
Further, the coordinator node includes microprocessor CC2531 and auxiliary circuit, data storage circuitry, antenna
Match circuit, usb circuit, condition indication circuit and power circuit；The coordinator node is each by radio transceiver
Strain, displacement and the payload data of individual node collection are simultaneously saved in data storage circuitry, and these data can be passed by USB interface
It is defeated to arrive computer；Condition indication circuit indicates current working condition.Coordinator node composition frame chart is as shown in Figure 5.
Further, the computer can receive strain, displacement and the payload data of collection by USB interface, and realize
Data processing, display and storage, while data collection station node working condition can be controlled by telegon.
Compared with prior art, the beneficial effects of the utility model are：
(1) data collection station node of the present utility model can complete signal transmitting, data acquisition and data and wirelessly pass
Defeated, overall system architecture is simple, reduces the cost of whole system, system is had higher cost performance.
(2) the utility model uses data wireless communication mode, it is not necessary to which site layout project signal wire, each inserting knot are also square
Just, reduce the working strength and workload of personnel, reduce labour cost.
(3) the utility model uses wireless communication mode, eliminates the common mode and DM EMI of transmission line, improves signal
Transmission quality.
(4) the utility model uses discrete data acquisition, has system maintainable well.
(5) data collection station node of the present utility model uses low power dissipation design, is battery powered, it is possible to achieve whole
Onsite application of the system in no AC220V power supplys.
Brief description of the drawings
Fig. 1 structural static experimental data acquisition system composition frame charts of the present utility model.
Fig. 2 strain data acquisition node composition frame charts of the present utility model.
Fig. 3 displacement data acquisition node composition frame charts of the present utility model.
Fig. 4 payload data acquisition node composition frame charts of the present utility model.
Fig. 5 coordinator node composition frame charts of the present utility model.
Fig. 6 dependent variable data acquisition node circuit diagrams of the present utility model.
Fig. 7 displacement data acquisition node circuit diagrams of the present utility model.
Fig. 8 payload data acquisition node circuit diagrams of the present utility model.
Fig. 9 coordinator node circuit diagrams of the present utility model.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
Strain acquirement node circuit figure is as shown in Figure 6.Strain acquirement node strain transducer selects resistance strain plate, is
Improve its stability and output sensitivity and reduce power consumption, often select high resistance foil gauge, such as model BF1K-3AA.Strain
The output of piece full-bridge circuit is transformed into the voltage signal of standard by intra-node strain translation circuit, and the utility model is using single electricity
The special integrated instrumentation amplifier AD623 in source is as translation circuit.Collection and control core parts microprocessor using
CC2530.Special integrated circuit CC2530 as Zigbee is a 8 high performance low-power microprocessors, and is had
Five kinds of different operation powering modes, have extremely low power consumption in sleep state.There are CC2530 8 tunnels to input and can configure resolution
12 ADC of rate, there is the powerful USART for supporting a variety of serial communication protocols, be internally integrated super low-power consumption SRAM, it is non-easily
The property lost program storage.In addition to save routine code and constant, internal non-volatile memory can store application program
Required system set-up parameters.It is internally integrated USART0 and is configured as spi bus, for leads to outside growth data storage circuit
Letter.Data storage circuitry is here primarily used as data buffer storage, using 1M × 8 low-power consumption SRAM storage chip
SST25VF010.Intra-node power circuit uses low pressure difference linearity translation circuit, and cell voltage is transformed into+3.3V voltages supplies
Digital circuit uses.Because data acquisition module is using low power dissipation design, thus acquisition node use it is battery-powered.Electricity
Pond uses IFR26650 type 3.2V ferric phosphate lithium cells capacity as 3200mAH, and two sections are placed in series in battery case, on battery case
There is the instruction of LED battery electric quantities.
Displacement acquisition node circuit figure is as shown in Figure 7.The detection of displacement acquisition modal displacement can use conductive plastic potentiometer
Self- recoverage position displacement sensor for pull rope, model WPS-S, range can need to select 5mm-1000mm according to measurement.As needed
Displacement detecting can also use rod-pulling type self- recoverage position conductive plastic potentiometer displacement transducer, model KTR-B series；Displacement sensing
The resistance signal of device output is voltage signal by intra-node shift transformation circuit conversion, and the utility model is using by list
The R-U translation circuits of power supply amplifier LM358 compositions.The other circuit units of displacement acquisition node are identical with strain acquirement node.
Load acquisition node circuit diagram is as shown in Figure 8.Load acquisition node loading detection uses strain-type power (pulling force or pressure
Power) sensor, can use strain radial force snesor, model SIN-LCLY, range can be needed according to measurement select 1T,
5T, 10T, 20T, 50T, 100T etc..Translation circuit strains sensor output resistance the electricity for being transformed into standard of sheet resistance
Signal is pressed, the utility model is using the special integrated instrumentation amplifier AD623 of single supply as translation circuit.Load gathers
The other circuit units of node are identical with strain acquirement node.
Coordinator node circuit diagram is as shown in Figure 9.Coordinator node using CC2531 as control core element, as
Zigbee special integrated circuit CC2531 is that a USB nonshared control unit is added on the basis of CC2530, supports to grasp at full speed
12Mbps is up to as the biography rate of hastening.Coordinator node is connected with computer by usb circuit, realizes coordinator node and meter
High speed data transfer between calculation machine.Because coordinator node is using low power dissipation design, thus coordinator node power supply by
USB interface provides, and simplifies the design of power supply.USB supply voltage+5V, interior power supply circuit is using low pressure difference linearity conversion electricity
Road ,+5V voltage transformations are used into+3.3V voltages for digital circuit.Condition indication circuit indicates current working condition.Data
Storage circuit, antenna-matching circuit are identical with other nodes.
Computer application software is worked out by Lebview, major function be receive coordinator node upload strain, displacement and
Payload data, the data of upload preserve in the form of a file, and can transfer these data and be analyzed and processed, while can lead to
Telegon is crossed to be controlled data collection station node working condition.
Mainly there are following several functions：
1. function is set and controlled in data collection station node parameter：
Parameter setting function mainly includes：Set by sensitivity of the dialog box to each TCH test channel sensor, range
Put, alarming threshold value setting can be carried out to such as displacement of some gathered datas, the sample rate of each node can be configured.Section
Point control function mainly includes：The zero point of each passage is corrected by dialog box, the startup and stopping of single channel collection
Control, the startup and stopping control of system acquisition, the function such as each node dormancy and wake-up control.
2. data transfer and data preserve function：
Computer sends collection transmission order, and the data of each data collection station node collection upload to coordinator node
And computer is uploaded to by USB interface, show the instantaneous value of each acquisition channel in display interface.The data of upload are with file
Form saves, three kinds of data optional text (TXT), Word file (DOC), Excel file (xls) forms of preservation.
3. playback data function：
Data file is selected, then starts to play back.After select file, playback of data can be started in an idle state, controlled
Button processed includes pause, stopping, rewind, retrogressing, advance, F.F..Pause button can suspend playback, and continue from current location
Playback.
4. variation tendency figure display function：
Data file is selected to open, each channel data can show changing rule, Duo Getong in the form of time graph
The curve in road can be shown simultaneously in display interface to be compared, and these curves are all static curves.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
The content being not limited to new technical scope on specification, it is necessary to which its technology is determined according to right
Property scope.
Claims (1)
- A kind of 1. structural static experimental data acquisition system based on Zigbee radio communications, it is characterised in that acquisition system Zigbee wireless networks use star structure, including more data collection station nodes, a coordinator node and a calculating Machine, the data collection station node include strain acquirement node, displacement acquisition node and load acquisition node, and the data are adopted Collection terminal node is connected by wireless connection, the coordinator node with coordinator node by USB with computer, the data Acquisition terminal node and coordinator node use low power dissipation design, and the data collection station node is battery powered, the association It is the power supply provided by computer by USB interface to adjust device node, and the acquisition system is in no AC220V onsite application, institute State strain acquirement node strain detecting and use resistance strain gage sensor, the displacement acquisition modal displacement detection is using electricity The change of displacement is converted into the change of potentiometer resistance, the lotus by position device displacement transducer, the potentiometer displacement sensor Carry acquisition node loading detection and use pressure sensor or pulling force sensor, the pressure sensor or pulling force sensor are by load It is changed into the change of resistance-strain sheet resistance, the strain acquirement node is 4 passages, and node includes 4 groups of strain gauge bridges, 4 Road strain translation circuit, microprocessor CC2530 and auxiliary circuit, data storage circuitry, antenna-matching circuit, power circuit and External connection battery, it is described strain translation circuit by the voltage signal for being transformed into standard of resistance-strain sheet resistance, then by CC2530 internal A/D converters are transformed into digital quantity and are stored in data storage circuitry by processing, and by being wirelessly transmitted to association Device node is adjusted, the displacement acquisition node is calculated as 2 passages, and node includes 2 displacement transducers, 2 road shift transformation circuits, micro- Processor CC2530 and auxiliary circuit, data storage circuitry, antenna-matching circuit, power circuit and external connection battery；The displacement Translation circuit converts by the voltage signal for being transformed into standard of displacement transducer resistance, then by CC2530 internal A/D converters Data storage circuitry is stored in into digital quantity and by processing, and can be by being wirelessly transmitted to coordinator node, the load Acquisition node is designed as 2 passages, and node includes 2 force snesors, 2 road force transformation circuits, microprocessor CC2530 and auxiliary Circuit, data storage circuitry, antenna-matching circuit, power circuit and external connection battery；The force transformation circuit is defeated by force snesor Go out the voltage signal for being transformed into standard of resistance-strain sheet resistance, then digital quantity is transformed into by CC2530 internal A/D converters And data storage circuitry is stored in by processing, and can be by being wirelessly transmitted to coordinator node, the coordinator node bag Include microprocessor CC2531 and auxiliary circuit, data storage circuitry, antenna-matching circuit, usb circuit, condition indication circuit And power circuit；Strain, displacement and the payload data that the coordinator node is gathered by each node of radio transceiver are simultaneously Data storage circuitry is saved in, these data can be transferred to computer by USB interface, and the condition indication circuit instruction is worked as Preceding working condition, the computer receive strain, displacement and the payload data of collection by USB interface, and realize at data Reason, display and storage, while data collection station node working condition is controlled by telegon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720776979.0U CN207197757U (en) | 2017-06-30 | 2017-06-30 | A kind of structural static experimental data acquisition system based on Zigbee radio communications |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720776979.0U CN207197757U (en) | 2017-06-30 | 2017-06-30 | A kind of structural static experimental data acquisition system based on Zigbee radio communications |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207197757U true CN207197757U (en) | 2018-04-06 |
Family
ID=61784253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720776979.0U Expired - Fee Related CN207197757U (en) | 2017-06-30 | 2017-06-30 | A kind of structural static experimental data acquisition system based on Zigbee radio communications |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207197757U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987253A (en) * | 2019-12-20 | 2020-04-10 | 中交第一航务工程局有限公司 | Force cell sensor monitoring system based on ZigBee wireless network technology |
-
2017
- 2017-06-30 CN CN201720776979.0U patent/CN207197757U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987253A (en) * | 2019-12-20 | 2020-04-10 | 中交第一航务工程局有限公司 | Force cell sensor monitoring system based on ZigBee wireless network technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107132013A (en) | A kind of structural static experimental data acquisition system based on Zigbee radio communications | |
| CN203084175U (en) | Constant current electronic load tester | |
| CN206695827U (en) | Electric power line pole tower condition monitoring system | |
| CN201269738Y (en) | Intelligent converter of LVDT displacement transducer | |
| CN106679921A (en) | Seismic shaking table data collection system based on Zigbee | |
| CN207197757U (en) | A kind of structural static experimental data acquisition system based on Zigbee radio communications | |
| CN203191133U (en) | Cable force fundamental frequency acquisition system | |
| CN111059996A (en) | Comprehensive pipe rack health monitoring system based on ZigBee technology | |
| CN201311485Y (en) | Ripple factor detecting device adapted to DC power supply | |
| CN210513003U (en) | Comprehensive pipe rack health monitoring system based on ZigBee technology | |
| CN203719620U (en) | Portable low-power static state resistance strain gauge | |
| CN202003496U (en) | Integrated power display instrument sensor system for sucker-rod pumping machine in oil field | |
| CN203396646U (en) | Anchor rod pulling tester | |
| CN103336199B (en) | Device and method for predicting fault rate of totally-closed tube type busbar | |
| CN202329686U (en) | Environment detection device | |
| CN201707783U (en) | Automatic data acquisition system of concrete cooling through water | |
| CN105629072A (en) | System for measuring multiplex resistance | |
| CN107764495A (en) | Building dynamic characteristics test system based on Zigbee radio communications | |
| CN111060394A (en) | Anchor bolt anchoring performance testing system based on wireless transmission | |
| CN203133054U (en) | Quantization and analysis system for lodging resistance of wheat stalk | |
| CN203096616U (en) | Intelligent synchronous tensioning system | |
| CN203117697U (en) | Current monitoring module | |
| CN202512172U (en) | Intelligent machine electrical impedance sensor for monitoring structure health conditions | |
| CN205642545U (en) | Ground water level remote monitering system | |
| CN208721358U (en) | A kind of pseudo static testing device data collection system based on WiFi technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180406 Termination date: 20210630 |