CN206593589U - A kind of strain transducer of visualization of presence - Google Patents
A kind of strain transducer of visualization of presence Download PDFInfo
- Publication number
- CN206593589U CN206593589U CN201720269384.6U CN201720269384U CN206593589U CN 206593589 U CN206593589 U CN 206593589U CN 201720269384 U CN201720269384 U CN 201720269384U CN 206593589 U CN206593589 U CN 206593589U
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- China
- Prior art keywords
- circuit board
- flexible member
- foil gauge
- warning
- strain
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Abstract
The utility model belongs to civil engineering monitoring device field, specifically related to a kind of strain transducer of visualization of presence, it includes flexible member, foil gauge, circuit board and live prior-warning device, flexible member is fixed on by geodesic structure, foil gauge is arranged on the surface of the flexible member, foil gauge is connected with circuit board, the deformation of foil gauge is converted into electric signal transmission into circuit board, circuit board is also connected with live prior-warning device, and circuit board includes balanced bridge, precise amplifying circuit, signal processing module, STM32 single-chip microcomputers and digital transmission module.Sensor of the present utility model passes through itself integrated warning lamp, the different degrees of malformation of different colours correspondence, engineering safety state is shown in real time, being capable of real-time, in situ, intelligible engineering monitoring and alarm mode there is provided one kind, live early warning and remote control are realized simultaneously, with preferable early warning effect.
Description
Technical field
The utility model belongs to civil engineering monitoring device field, more particularly, to a kind of strain of visualization of presence
Sensor, it can find dangerous situation in time, realize scene and long-range synchronous early warning, and can carry out classification police to dangerous situation
Show.
Background technology
In the large-scale construction engineering structure such as high building, bridge, tunnel, over time, external environment condition corrodes, load
The reason such as effect and the material aging of itself, can cause the body of building engineering structure to produce deformation and crack.To these deformation
With being monitored and early warning for crack, counter-measure is taken as early as possible, the loss of personnel and property can be avoided.Existing sensor
In equipment, following defect is there is：(1) existing strain monitoring, process is sufficiently complex, it is necessary to first paste foil gauge, and reconnection is special
The deformeter of industry obtains correlated results, and foil gauge can not be reused, and is inconvenient under construction environment to paste, professional
Deformeter is then because volume weight is larger, it has not been convenient to be carried to scene, and the workman at scene will not use instrument mostly, it is impossible to
Distinguish whether the strain value measured belongs to danger classes；(2) signal that the foil gauge of strain transducer is perceived is weaker, in the later stage
It is easily lost in processing procedure, causes early warning not in place；(3) existing strain transducer is general only realizes alarm at the scene, and
There are many engineering projects in more remote area, not necessarily there is staff at scene, therefore, even if having early warning also not necessarily
It can find in time；(4) warning system of existing strain transducer can only carry out alarm to dangerous situation, but can not be classified alarm,
Staff is caused to arrange suitable counter-measure in time.In addition, existing sensor also have processing system complicated and
The shortcomings of cost is high.
Due to there is drawbacks described above and deficiency, this area is needed badly to make and further improved, a kind of strain of design
Sensor, dangerous situation can be found in time, scene and long-range synchronous early warning is realized, and can carry out classification police to dangerous situation
Show.
Utility model content
For the disadvantages described above or Improvement requirement of prior art, the utility model provides a kind of strain of visualization of presence
Circuit on sensor, including flexible member, foil gauge, circuit board and live prior-warning device, circuit board is handled signal,
The live prior-warning device includes warning lamp, buzzer siren and exit signs.The sensor is without human intervention, and itself is integrated
Sense, analyze, comparing, information issue, a variety of functions such as early warning.The sensor introduces flexible member, is in order to foil gauge energy
Reuse, and save the complex process that foil gauge is pasted in construction, use more facilitates, and passes through itself integrated warning lamp
(different colours correspondence different degrees of malformation) in real time display engineering safety state there is provided one kind can in real time, original position,
Intelligible engineering monitoring and alarm mode, with preferable early warning effect.
To achieve the above object, according to one side of the present utility model, there is provided a kind of strain of visualization of presence biography
Sensor, it is characterised in that it includes flexible member, foil gauge, circuit board and live prior-warning device,
Wherein, the flexible member is fixed on by geodesic structure, the surface configuration of the foil gauge and the flexible member
It is identical, and the middle part of flexible member is pasted onto, the foil gauge is connected with circuit board, and the deformation of foil gauge is converted into electric signal
It is transferred in circuit board, the circuit board is also connected with live prior-warning device,
The circuit board includes balanced bridge, precise amplifying circuit, signal processing module, STM32 single-chip microcomputers sum and passed
Module.
Signal after being handled by balanced bridge, precise amplifying circuit etc., follow-up accurate place can be exaggerated in order at double
Reason, and the signal after amplification can be converted into data signal by signal processing module, STM32 single-chip microcomputers and digital transmission module, be easy to
Follow-up transmission and control, improves the accuracy of alarm.
It is further preferred that the flexible member is dumbbell shape
Preferably, the live prior-warning device includes warning lamp, buzzer siren and exit signs.
Preferably, the warning lamp is LED and has multiple color, and the alarm of different stage is corresponded to respectively.
Show that the flexible member of dumbbell shape is easy to fixed when mounted according to this more comparative test, and by using
The warning lamp combination buzzer alarm and exit signs of different colours, carry out the harmful grade of early warning different stage, give work people
Loss, can be preferably minimized by the dangerous situation of the sufficient time correspondence different stage of member.
According to another aspect of the present utility model, there is provided a kind of safety of visualization of presence based on strain transducer is pre-
Alarm method, it is characterised in that it uses strain transducer as described above, it is characterised in that specifically include following steps：
S1. the strain gauge adhesion in strain transducer is fixed on by geodesic structure on flexible member, then by flexible member
In, flexible member is deformed with the deformation by geodesic structure, so as to obtain by the initial strain signal of geodesic structure；
S2. the initial strain signal collected in step S1 is passed through into the balanced bridge and precise amplifying circuit on circuit board
Processing, the strain signal after being amplified；
S3. at the data processing module on the incoming circuit board of strain signal after the amplification that will be obtained in step S2, data
Strain signal after amplification is converted into data signal by the STM32 single-chip microcomputers in reason module；
S4. by step S3 by STM32 single-chip microcomputers processing after data signal be transmitted separately to live early warning system and
Cloud platform early warning system, so as to realize live early warning and remote control.
It is further preferred that in step s 4, live early warning is according to several danger classes divided in advance, by step
Data signal in S3 after the processing of STM32 single-chip microcomputers is included in corresponding danger classes, and controls corresponding live early warning dress
Progress early warning is put to show.
Preferably, in step s 4, the live early warning dress includes warning lamp, buzzer siren and exit signs.
Preferably, in step s 4, it is LED in the warning lamp, and LED uses different colors to correspond to respectively not
The alarm of same level, when the strain of foil gauge exceedes certain limit, buzzer siren is alarmed while warning lamp is bright；
More comparative test shows, by using the warning lamp combination buzzer alarm and exit signs of different colours,
Carry out the harmful grade of early warning different stage, give staff the dangerous situation of sufficient time correspondence different stage, will can lose
It is preferably minimized.
Preferably, in step s 5, the data signal in step S3 after the processing of STM32 single-chip microcomputers is passed into mould using number
Block is transmitted to cloud management platform, then sends information to manager by cloud management platform, realizes remote control.
Preferably, in step s 5, the data transfer uses Wifi, NB-IoT, 4G or 5G digital transmission module.
Preferably, in step s 5, the cloud principle platform is provided with the near threshold of data signal shakes back stagnant protect
Protecting band.More comparative test shows, noise band can be efficiently reduced by shaking back stagnant protection band near threshold setting
The interference come, improves the accuracy of alarm.
In general, by the contemplated above technical scheme of the utility model compared with prior art, with following excellent
Point and beneficial effect：
(1) strain transducer of visualization of presence of the present utility model, including flexible member, foil gauge, circuit board and existing
Circuit on prior-warning device, circuit board is handled signal, without human intervention, itself integrated sensing, analyze, compare,
A variety of functions such as information issue, early warning.The sensor passes through itself integrated warning lamp, the different degrees of knot of different colours correspondence
Structure is deformed, and display engineering safety state being capable of real-time, in situ, intelligible engineering monitoring and the pre- police there is provided one kind in real time
Formula, while live early warning and remote control are realized, with preferable early warning effect.
(2) the utility model by balanced bridge, precise amplifying circuit etc. handle after signal, can amplify at double so as to
In follow-up accurate processing, and the signal after amplification can be converted into number by signal processing module, STM32 single-chip microcomputers and digital transmission module
Word signal, is easy to follow-up transmission and control, improves the accuracy of alarm, and eliminate the monitoring instrument (deformeter) of specialty
Use, complicated process instrumentation, is substituted by one piece of circuit board, further facilitated monitoring, saved cost originally.By adopting
With the warning lamp combination buzzer alarm and exit signs of different colours, carry out the harmful grade of early warning different stage, give work
Loss, can be preferably minimized by the dangerous situation of the sufficient time correspondence different stage of personnel.Shaken back by being set near threshold
Stagnant protection band can efficiently reduce the interference that noise band is come, and improve the accuracy of alarm.
(3) alarm and alarm method of the present utility model can be applied in the engineerings such as tunnel, bridge, side slope, foundation ditch,
It is monitored and warning function can provide safety guarantee for site operation personnel, is just made promptly and accurately in accident, initial stage of disasters
Indicating risk, take to withdraw and hide or remedy emergency measure, so as to avoid casualties and property loss.And the siren knot
Structure is simple, easily prepared, with low cost, and suitable large-scale promotion is used.
Brief description of the drawings
Fig. 1 is the structure chart of strain transducer of the present utility model；
Fig. 2 is the workflow diagram of strain transducer of the present utility model；
Fig. 3 is the system the general frame of strain transducer of the present utility model；
Fig. 4 is strain transducer workflow diagram of the present utility model；
Fig. 5 (a) and (b) are the utility model foil gauge a quarter bridge precise amplifying circuit schematic diagrams；
Fig. 6 is strain early warning system flow chart of the present utility model；
Fig. 7 is live early warning system flow chart of the present utility model；
Fig. 8 is time stagnant protection figure that software of the present utility model is realized；
Fig. 9 is cloud platform workflow diagram of the present utility model；
The storage of Figure 10 data and transfer process figure.
Wherein：1- foil gauges；2- flexible members；3- circuit boards；4-LED indicator lamps；5- alarms.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.In addition, institute in each embodiment of the utility model disclosed below
As long as the technical characteristic being related to does not constitute conflict and can be just mutually combined each other.
Fig. 1 is the structure chart of strain transducer of the present utility model, as illustrated, it includes flexible member, foil gauge, electricity
Road plate and live prior-warning device,
Wherein, the flexible member is dumbbell shape, and the flexible member is fixed on by geodesic structure, the foil gauge and institute
The surface configuration for stating flexible member is identical, and is pasted onto the middle part of flexible member, and the foil gauge is connected with circuit board, will strain
The deformation of piece is converted into electric signal transmission into circuit board, and the circuit board is also connected with live prior-warning device, the circuit board
Include balanced bridge, precise amplifying circuit, signal processing module, STM32 single-chip microcomputers and digital transmission module.
Specifically, strain prompting early warning system takes resistance strain gage, electric bridge, precision amplification early stage Proof-Of Principle electricity
Road, adds STM32F103 single-chip microcomputers, eight segment numeral pipes, light-touch switch key-press, wherein reserved RS232 communication interfaces, connection
Wifi, NB-IoT or 5G digital transmission module as collection in worksite, thresholding setting, sound and light alarm, fire escape indicating module.
The system is divided into field control system and tele-control system, and what wherein field control was taken is real-time early warning, bag
Siren and blinking red lamp early warning have been included, has notified field worker to be confirmed that tele-control system is then cloud platform and work in time
The communication of journey field module, using Wifi, NB-IoT or 4G, 5G digital transmission modules, cloud platform can collect the various of scene in real time
Strain data and alarm status.Cloud platform is when there is alarm to occur, by Ethernet with SMGP to related responsibility
People sends corresponding warning information, while the method insured using dual link, is sent with wechat interface to responsible person concerned
Wechat information, and LBS (the Location Base System) positional information at scene is sent to correlation with wechat, short message form
Person liable and rescue personnel, use for processing, rescue navigation.The exit signs at remote control scene and related crossing closing simultaneously
Indicate.
The comparative analysis of the strain transducer of table 1 and prior art
The utility model additionally provides a kind of safe early warning method of the visualization of presence based on strain transducer, and it is used
Strain transducer as described above, it is characterised in that specifically include following steps：
S1. strain acquirement
By the strain gauge adhesion in strain transducer on flexible member, then flexible member is fixed on by geodesic structure,
Flexible member is deformed with the deformation by geodesic structure, so as to obtain by the initial strain signal of geodesic structure；
S2. data processing
The initial strain signal collected in step S1 is passed through at the balanced bridge on circuit board and precise amplifying circuit
Reason, the strain signal after being amplified；
Key componentses mainly have two in the utility model, are resistance strain gage and precision operational-amplifier respectively.Its
Its common amplifier (this project uses LM339), resistance capacitance, inductance, light emitting diode, switching diode use lowest accuracy
Grade (resistance, the error of electric capacity 5%), such as shown in Fig. 5 (a) and Fig. 5 (b), their shadow is avoided using circuit design skill
Ring, so as to reduce Material Cost to greatest extent.
S3. STM32 single-chip microcomputers in the data processing module on incoming circuit board, data processing module by after amplification should
Varying signal is converted into data signal；
The core of notebook data processing module is STM32 processors, foil gauge access electric bridge, by precision amplification, to CPU's
ADC gathers strain value.
S4. early warning is strained
Strain early warning system can be divided into live early warning system and cloud platform warning information pushes two parts, as shown in fig. 6, should
Become early warning system workflow as follows：
S4.1 scenes prior-warning device
Live prior-warning device is made up of 4 color LEDs, buzzer and exit signs, and LED modules with different colors lamp correspondence is different degrees of
Malformation, 4 color LED alert levels are followed successively by from low to high：In vain, it is blue, it is yellow, it is red, buzzer can be set in certain danger etc.
More than level start to pipe, exit signs start to light direction board more than certain danger classes.
Live prior-warning device part specific workflow figure as shown in Figure 7, by precise amplifying circuit by obtained signal
It is transferred to after STM32 processors, STM32 processors can be corresponding according to obtained data and selected strain monitoring scope triggering
Prior-warning device.By selecting suitable range, can adjust as needed assorted LED, buzzer and exit signs startup when pair
The strain value answered, for example, can adjust strain value brilliant white lamp, light blue lamp when between Y0 to Y1, between Y1 to Y2 when less than Y0
Shi Lianghuang lamps, send out a warning during more than Y2, and being more than Y1 in strain starts buzzer, and exit signs are lighted during more than Y2.
S4.2 cloud management platforms warning information is pushed
Cloud management platform sends phase with SMGP by Ethernet when there is alarm to occur to responsible person concerned
The warning information of grade is answered, while the method insured using dual link, wechat information is sent with wechat interface to responsible person concerned,
And LBS (the Location Base System) positional informations at scene are sent to responsible person concerned and rescue people in wechat form
Member, uses for handling and rescuing navigation.The exit signs at remote control scene and related crossing closing are indicated simultaneously.Cloud management is put down
Platform uses the B/S architecture designs of multi-process, and database uses MySQL.Complete the protocol conversion with public security traffic system.Short message
Gateway protocol is using mobile CMPP (China Mobile Peer to Peer), UNICOM SGIP (S hort Message
Gateway Interface Protocol), telecommunications SMGP (Short Message Gate way Protocol) provide net
Close agreement.Wechat interface agreement uses the open protocol of Tencent.
In order to prevent Precision measurement from causing not stop to eliminate to cloud platform report and alarm and alarm in the shake of thresholding annex, this reality
Stagnant protection band is shaken back with new be provided near threshold, as shown in figure 8, X-axis is strain detecting numerical value, Y-axis (is accused for alarm
It is alert：1；Alarm clearing：0), alerted when strain value solid arrow direction increases above x1；Value dotted line direction should be compiled to reduce below
Horse back report and alarm does not recover during x1, but to continue to be decreased below ability report and alarm during x0 and recover, and thus forms one
Shake protection band between individual x0~x1.The continually report and alarm and alarm caused so as to effectively prevent strain value to shake is extensive
It is multiple.
The collection and storage of data for convenience, the utility model has reserved RS232 communication interfaces, connects WiFi, NB-
IoT or 5G digital transmission modules as collection in worksite, thresholding setting, sound and light alarm, fire escape indicating module, to realize cloud
Platform management functions；USB interface has been reserved simultaneously, data can have been exported and stored in other equipment.
As it will be easily appreciated by one skilled in the art that the foregoing is only preferred embodiment of the present utility model, not
To limit the utility model, all any modifications made within spirit of the present utility model and principle, equivalent substitution and change
Enter, should be included within protection domain of the present utility model.
Claims (4)
1. a kind of strain transducer of visualization of presence, it is characterised in that it includes flexible member, foil gauge, circuit board and showed
Field prior-warning device,
Wherein, the flexible member is fixed on by geodesic structure, and the foil gauge is identical with the surface configuration of the flexible member, and
The middle part of flexible member is pasted onto, the foil gauge is connected with circuit board, the deformation of foil gauge is converted into electric signal transmission arrives
In circuit board, the circuit board is also connected with live prior-warning device.
2. strain transducer as claimed in claim 1, it is characterised in that the flexible member is dumbbell shape.
3. strain transducer as claimed in claim 1 or 2, it is characterised in that the live prior-warning device includes warning lamp, honeybee
Ring alarm and exit signs.
4. strain transducer as claimed in claim 3, it is characterised in that the warning lamp is the LED of different colours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720269384.6U CN206593589U (en) | 2017-03-20 | 2017-03-20 | A kind of strain transducer of visualization of presence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720269384.6U CN206593589U (en) | 2017-03-20 | 2017-03-20 | A kind of strain transducer of visualization of presence |
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| Publication Number | Publication Date |
|---|---|
| CN206593589U true CN206593589U (en) | 2017-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720269384.6U Expired - Fee Related CN206593589U (en) | 2017-03-20 | 2017-03-20 | A kind of strain transducer of visualization of presence |
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| Country | Link |
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| CN (1) | CN206593589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050724A (en) * | 2020-08-05 | 2020-12-08 | 南通职业大学 | Deformation detection device and deformation detection method for building structure |
-
2017
- 2017-03-20 CN CN201720269384.6U patent/CN206593589U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050724A (en) * | 2020-08-05 | 2020-12-08 | 南通职业大学 | Deformation detection device and deformation detection method for building structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Song Sirui Inventor after: Liu Huabei Inventor after: Xu Dongsheng Inventor after: Bin Xueyang Inventor before: Song Sirui Inventor before: Liu Huabei Inventor before: Xu Dongsheng |
|
| 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: 20171027 Termination date: 20190320 |