CN208595974U - A kind of circumference vibration monitoring prior-warning device - Google Patents
A kind of circumference vibration monitoring prior-warning device Download PDFInfo
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- CN208595974U CN208595974U CN201820529897.0U CN201820529897U CN208595974U CN 208595974 U CN208595974 U CN 208595974U CN 201820529897 U CN201820529897 U CN 201820529897U CN 208595974 U CN208595974 U CN 208595974U
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Abstract
The utility model discloses a kind of circumference vibration monitoring prior-warning devices, it includes shell (1), substrate (2), signal output terminal (4), vibrating sensor (5), signal conditioning module (6), single-chip microcontroller (8), the piezoelectric cable sensor (3) being embedded between shell and substrate, and single-chip microcontroller connects external interface (11) by data line respectively, GPS module (12), data memory module (9), data processing module (10), wherein signal output terminal (4) connects signal conditioning module (6) by vibrating sensor (5), signal conditioning module (6) connects single-chip microcontroller (8) and data memory module (9) by fieldbus (7), data memory module (9) connects data processing module (10) by data line.The utility model have monitoring data accuracy and real-time, be easily installed, using it is safe the advantages that.
Description
Technical field
The utility model relates to place, such as enclosure wall, venue, garden etc. safety monitoring technology field, more particularly to one
Kind vertical Vibration Synchronization monitoring warning device and method to the ground.
Background technique
It is shielding or barrier (such as iron bar, enclosure wall, height for the traditional measures that emphasis place exterior perimeter is taken precautions against
Voltage electric grid etc.), but at this stage with scientific technological advance, there is leakage before existing means of destruction in traditional circumference defence method
Hole and fault.Therefore advanced circumference Initiative Defense measure is necessary in protection and monitor field, and existing circumference intrusion detection is logical
Often include following method: active infrared detection, issues infrared-ray using the transmitting terminal of detector, received, formed by receiving end
Alarm circuit.For the area of space that enclosure wall etc. needs straight line to take precautions against, but its installation requirement is stringent, must nothing in installation environment
It blocks, it is 200 meters that single group, which detects effective distance, is easy by weather, the influence of topography, installation has been easy dead angle, has installed rear rate of false alarm
It is high；Buried induction cable, leaky cable and transmitter receiver under being embedded in circumferentially in parallel using two are formed, using sense
It answers the space between two leaky cables to form the detecting area of electromagnetic field, is invaded using as personnel, space magnetic field can change
Principle detected, can be used for embedding manner installation, single group detect effective distance be 100 meters or so, effect is more covert, but hold
Easy false triggering.Above two monitoring is that can only navigate at point-to-point transmission line segment to invade there are one common drawback, and can not
Invasion position is navigated into certain point on line segment.In addition there are fibre optical sensors to carry out intrusion detection, and fibre optical sensor is using distribution
Formula optical fiber and fiber grating cause optical fiber jiggle to incude using outside invading, to change the light wave physical quantity in optical fiber, such as light
By force, polarization state, the principle real-time detection of deflection angle etc..But fiber optic network installation and debugging are cumbersome, need to deploy to ensure effective monitoring and control of illegal activities in parallel each other not
It can intersect, system signal noise ratio could be improved by generally requiring high-power monochromatic source, cause cost excessively high, and the change of temperature is easy to draw
It rises and expands with heat and contract with cold, will lead to wrong report.Although distributed fiberoptic sensor can use optical signal modulation analysis, send out intrusion behavior
Raw point location, the physical quantity for needing to comprehensively consider is excessive, calculates complicated.
Therefore, need at present it is a kind of can circumference vibrate occur when can accurate automatic Calibration interference time and amplitude, simultaneously
Invasion vibration is navigated at the specified point of specific circumference boundary, is applicable to vibrate prison under non-rectilinear exterior perimeter environment
Survey processing requirement, the circumference active defense method that activation threshold value can be adjusted according to different space enrironments, in order to provide more acurrate
Specific data containing having time and amplitude monitors and is alarmed for circumference.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of, and the place circumference vibration based on flexible sensor is adopted
Collection and method for early warning, to overcome the shortcomings of all types of vibration measuring instrument interference of above-mentioned existing artificial judgment.
Purpose of the utility model is to solve emphasis place circumference hidden vibration monitoring and automatic Calibration vibration hairs
The raw time, alarm measure problem is made, the utility model provides emphasis place circumference vibration monitoring and method for early warning.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
Circumference vibration monitoring prior-warning device provided by the utility model, including shell, substrate, signal output terminal, vibration
Sensor, signal conditioning module, single-chip microcontroller, insertion are placed in piezoelectric cable sensor and single-chip microcontroller between shell and substrate
Connect external interface, GPS module, data memory module, data processing module respectively by data line, in which: signal output terminal
Signal conditioning module is connect by vibrating sensor, signal conditioning module connects single-chip microcontroller and data memory module by fieldbus,
Data memory module connects data processing module by data line.
The shell is made of polyesteramine rubber flexible material, and the substrate is made of polyesteramine rubber flexible material.
The piezoelectric cable sensor, using coaxial cable package PVDF piezoelectric membrane based on manufactured piezoelectric electro
Cable, being wrapped in the length among shell and substrate can be adjusted according to actual conditions, for adjusting monitoring vibration magnitude.
The vibrating sensor is integrated flexible vibration sensor, uses block sensor for embedded piezoelectric cable sensing
Device flexible material is made；The vibrating sensor is monitoring modular, is laid at the circumference that need to deploy troops on garrison duty by Mesh nodes.
The building form of the vibrating sensor module is: wherein each module includes certain length piezoelectric cable sensor
One, which exports via output terminal；Subsequent output signal connects signal in signal conditioning module
After the processing of signal amplification module, filtering and Hz noise, using signal conditioning module collection voltages signal and number is converted to
It is passed through after word value by being transmitted on fieldbus, it, will by data processing module after the clock signal that GPS module generates is added in single-chip microcontroller
Modular Data sends fieldbus back to, data memory module can direct data caused by storing data processing module, deposit simultaneously
Storage fieldbus is transferred from definition signal, for post analysis and data processing purposes；Single-chip microcontroller is customized according to storing simultaneously
Signal further passes through external interface to needing protective device to carry out power-off protection, starts the measures such as safeguard procedures, and pass through packet
It includes acousto-optic electric signal and carries out alarm operation.
The acquisition module uses AD acquisition module, has 16 ADC chips, and the signal after acquisition adds GPS mould
The time signal group that block generates is combined into enclosure wall circumference vibration alarming information.
To the collected interference signal of sensor by amplification rectification, the method for removing Hz noise, acquired module is passed
Enter to carry out next step storage and control output operation in single-chip microcontroller.
The utility model have compared with prior art it is following main the utility model has the advantages that
First, can be recorded while piezoelectric transducer detects vibration using GPS clock module synchronization automatic Calibration
Time of origin is interfered, and records amplitude, to ensure the accuracy and real-time of monitoring data.
Second, the sensor laying advantage used is as follows: monitoring range flexible transformation can be directed to circumference varying environment feature
Circumference any position is monitored, in the way of modularized processing, straightens line monitoring as point monitoring, each monitoring point signal can be by same
Fieldbus carries ID and distinguishes and transmit.Monitoring is adjusted flexibly by increasing flexible sensor number of modules and ranks spacing
Area；Vibration threshold is adjustable simultaneously.Simultaneously because piezoelectric cable itself is passive sensor, amplification mould can be routed in detection
It is very interior over long distances without power supply before block, reduce external introducing interference.
Third, the flexible sensor applicability used is good: being tested and found by range of signal, caused from covering ground surface vibration
Faint pressure signal is to high speed truck axis impact signal, which has response, and linear dynamic range is more than 80dB,
Prove that its measuring signal sensing range is big.In impact experiment, using 50N/mm mass block, piezoelectric cable still can produce output
Signal does not fail.It is tested simultaneously by the output amplitude consistency at the same pressure of 30 groups of finished product piezoelectric transducers,
Output-consistence error < ± 3%, the requirement of switching signal needed for which meets circumference monitoring, alarming.Piezoelectricity
The high sensitivity of cable, good linear and wide dynamic range make to include various vibration informations in the low-and high-frequency signal of its generation,
By the relative magnitude and frequency characteristic of its signal of spectrum analysis, the signal specific class for leading to circumference intrusion alarm can be found
Type, such as in the experiment of place, 0 can be distinguished at nearly loke shore to the single footsteps in 20Hz lake water ambient noise.Simultaneously should
Signal is Dynamic Signal, and only when vibration is transferred on sensor effectively, subsequent static pressure will not generate interference signal, rapid
Meet invasion vibration characteristic while determining interference source signal.
Fourth, being easily installed:
Circumference building original structure is not destroyed when installation, it is easy, flexibly.It such as may be mounted at the top of a wall, when monitoring is invaded
Personnel or tool buttress cause to vibrate, and can also be laid at corner, and detection corner vibrates after being pressurized.With flexible coverage mode by wall
Body and ground combine, and cover monitoring region method without destroying circumference self structure using flexible sensor.
Fifth, using safe:
It is hidden when installation, it is not easy to find, covering and shallow embedding two ways can be taken, as non-demolition wall and ground can not be sent out
Place is now laid, can effectively avoid wilful damage.
Detailed description of the invention
Fig. 1 is circumference Vibration Synchronization method for early warning schematic diagram.
Fig. 2 is the schematic diagram that vibrating sensor submodule is laid in width enclosure wall circumference.
In figure: 1. shells；2. substrate；3. piezoelectric cable sensor；4. signal output terminal；5. vibrating sensor；6. letter
Number conditioning module；7. fieldbus；8. single-chip microcontroller；9. data memory module；10. data processing module；11. external interface；
12.GPS module；13. signal amplification module；14. filtering；15. Hz noise；16.AD acquisition module；17. the top of a wall；18. wall
Angle；19. wall circumference.
Specific embodiment
Below with reference to examples and drawings, the utility model is described in further detail, but does not limit the utility model.
The utility model provides circumference vibration monitoring prior-warning device, as depicted in figs. 1 and 2, by shell 1, substrate 2, pressure
Electrical cables sensor 3, signal output terminal 4, vibrating sensor 5, signal conditioning module 6, fieldbus 7, single-chip microcontroller 8, data
Memory module 9, data processing module 10 and GPS module 12 form, in which: the insertion of piezoelectric cable sensor 3 is placed in shell 1 and base
Between bottom 2, which connects signal conditioning module 6, signal tune by integrated flexible vibrating sensor 5
Reason module 6 connects single-chip microcontroller 8 and data memory module 9 by fieldbus 7, and single-chip microcontroller 8 connects external interface by data line respectively
11, GPS module 12, data memory module 9, data processing module 10, data memory module 9 connect data processing mould by data line
Block 10.
The shell 1 is upper layer polyesteramine rubber flexible material envelope, can be made of polyesteramine rubber material.
The substrate 2 is lower layer's polyesteramine rubber flexible material substrate 2, can be made of polyesteramine rubber material.
The piezoelectric cable sensor 3, using coaxial cable package PVDF piezoelectric membrane based on manufactured piezoelectric electro
Cable, being wrapped in the length among shell 1 and substrate 2 can be adjusted according to actual conditions, for adjusting monitoring vibration magnitude.
By being embedded in piezoelectric cable method in flexible cover and substrate, formation piezoelectric transducer module is right using piezoelectric cable itself
The sensitivity of pressure, incudes vertical direction pressure at laying, and output voltage carries out vibration alarming.
The vibrating sensor 5 is integrated flexible vibration sensor, is deployed troops on garrison duty for modularization circumference.The vibrating sensor
Block sensor can be used to be made of embedded piezoelectric cable sensor flexible material, size can lay place according to circumference
Actual conditions modification, it is insensitive for micro vibration, reduce false triggering rate.Waterproof, buffer action are played simultaneously.Fixation is placed in ground
The top of a wall of face or entity enclosure wall.Using piezoelectric cable sensor method built in this flexibility, lays flexibly, enclosed without destroying circumference
Wall self structure structure.The characteristic of earth's surface can be covered in using flexible sensor itself, when erection can be placed directly in enclosure wall top
End and bottom, upper layer covering soil, floor tile and wall brick, have concealment when can also lay.
The vibrating sensor 5 is monitoring modular, is laid at the circumference that need to deploy troops on garrison duty by Mesh nodes, can adjust flexible pass
Sensor module quantity forms monitoring array, customization monitoring area size, composition by adjusting sensor row spacing and column pitch
Monitoring network concurrently sets threshold value, pre-warning signal rank size and respective handling.And then it is adapted to by adjusting activation threshold value different
Monitor environmental demand.This linear deployment for monitoring traditional circumference becomes netted lattice point and deploys troops on garrison duty, and can further promote circumference
Monitor positioning accuracy.
The signal conditioning module 6 can will be adopted using the amplification chip OP140 in signal amplification module 13, the chip
The weak signal collected amplifies 50 times according to place situation, the 50Hz notch filter that removal 15 chip F42N56 of Hz noise is constituted
Device can effectively prevent influence of the Hz noise to the measurement accuracy of this system up to the notch depth of 60dB.
The fieldbus 7 can reduce signal with fieldbus come transmission of monitoring signal pathway using CAN bus
Transmission is influenced by external temperature and humidity environment.Strong real-time, long transmission distance, anti-electromagnetic interference capability is strong, what disparate modules were sent
Information is distinguished by message ID.
The single-chip microcontroller 8 can use STM32 microprocessor.
The data memory module 9 can be realized using 32M SD card, be driven in such a way that STM32 single-chip microcontroller is via SPI
6 byte operational orders under SD mode realize the initialization to SD, reset, and read, write, operation note function.Module 10 is produced
Raw vibration signal storage is in case call.
The data processing module 10 can be realized, by GPS time signal, no using the programming of STM32 microprocessor internal
It is combined into the signal for carrying position encoded ID, with amplitude signal transmitted by vibrating sensor module at position convenient for effectively distinguishing
Vibration alarming at different location, in case subsequent processing.
The GPS module 12 can use time service type GPS module, such as the double time service module HX6517T of GPS/ big-dipper satellite,
Lock-out pulse is issued using some rising edge time of its PPS after effective and is input to each converter, by the work of converter
State synchronized.Use GPS to obtain criteria triggers time and corresponding vibration sensor magnitudes as monitoring signals, can maintenance signal it is consistent
Property.
Fig. 2 is that wall circumference vibrates submodule artwork, is laid in the top of a wall 17 according to different 19 concrete conditions of wall circumference
Or 18 at corner.
The building form of single 5 module of flexible vibration sensor is as follows in Fig. 1: wherein each module includes specific length
(such as 0.5 meter built-in in every square metre of module) piezoelectric cable sensor 3 one, is placed in outside the polyesteramine rubber flexible material of upper layer
Between shell 1 and lower layer's polyesteramine rubber flexible base material 2,3 signal of piezoelectric cable sensor is exported via output terminal 4.With
Output signal connects signal in signal conditioning module 6 by amplification 13 afterwards, and filtering 14 utilizes AD after going Hz noise 15 to handle
16 collection voltages signal of acquisition module is simultaneously converted to after digital value through GPS mould is added through single-chip microcontroller 8 by transmitting on fieldbus 7
After the clock signal that block 12 generates, Modular Data is sent back to fieldbus 7, data memory module 9 by data processing module 10
Can direct data caused by storing data processing module 10, while storing fieldbus and being transferred from definition signal, ground for the later period
Study carefully, analyzes purposes.STM32 single-chip microcontroller 8 can further pass through 11 pairs of need of external interface according to stored customized signal simultaneously
Protective device carries out power-off protection, the measures such as starting safeguard procedures, while carrying out the operation such as alarm by signals such as acousto-optic-electrics.
The acquisition module 16 uses 16 analog-digital converters, has 16 ADC chips, and the signal after acquisition adds
The time signal group that GPS module generates is combined into enclosure wall circumference vibration alarming information.
To the collected interference signal of sensor by amplification rectification, the method for removing Hz noise turns through 16 moduluses
Parallel operation, which is passed in STM32 microprocessor, carries out next step storage and control output operation.By rationally designing parameter, adjustment output
Amplitude, sensor can monitor the 0.1Hz-100Hz signal of 1KG-300KG signal source generation.
Above-mentioned circumference vibration monitoring prior-warning device provided by the utility model, the course of work is: vibrating sensor 5 will be believed
Number amplification 13, filtering 14, after removing Hz noise 15, using collector 16 handle after normalize fieldbus 7 on transmit, through monolithic
After the clock signal that GPS module 12 generates is added in machine 8, GPS module data are sent back to fieldbus by data processing module 10
7, data memory module 9 can direct data caused by storing data processing module 10, while storing fieldbus transmission and making by oneself
Adopted signal is studied for the later period, analyzes purposes.Single-chip microcontroller 8 can further pass through outside according to stored customized signal simultaneously
Interface 11 is to equipment starting protection measure, shutdown processing, and carries out the operation such as alarm by signals such as acousto-optic-electrics.
Claims (7)
1. a kind of circumference vibration monitoring prior-warning device, it is characterized in that including shell (1), substrate (2), signal output terminal (4), vibration
Dynamic sensor (5), signal conditioning module (6), single-chip microcontroller (8), insertion are placed in the piezoelectric cable between shell (1) and substrate (2)
Sensor (3) and single-chip microcontroller (8) pass through data line and connect external interface (11), GPS module (12), data memory module respectively
(9), data processing module (10), in which: signal output terminal (4) connects signal conditioning module (6) by vibrating sensor (5),
Signal conditioning module connects single-chip microcontroller (8) and data memory module (9) by fieldbus (7), and data memory module (9) passes through number
Data processing module (10) are connect according to line.
2. circumference vibration monitoring prior-warning device according to claim 1, it is characterised in that the piezoelectric cable sensor
(3), using coaxial cable package PVDF piezoelectric membrane based on manufactured piezoelectric cable, be wrapped in shell (1) and substrate
(2) intermediate length can be adjusted according to actual conditions, for adjusting monitoring vibration magnitude.
3. circumference vibration monitoring prior-warning device according to claim 2, it is characterised in that the shell (1) is by polyesteramine rubber
Glue flexible material is made, and the substrate (2) is made of polyesteramine rubber flexible material.
4. circumference vibration monitoring prior-warning device according to claim 1, it is characterised in that the vibrating sensor (5) is one
Body flexible vibration sensor uses block sensor to be made of embedded piezoelectric cable sensor flexible material；The vibrating sensing
Device (5) is monitoring modular, is laid at the circumference that need to deploy troops on garrison duty by Mesh nodes.
5. circumference vibration monitoring prior-warning device according to claim 4, it is characterised in that vibrating sensor (5) module
Building form be: wherein each module include certain length piezoelectric cable sensor (3) one, the piezoelectric cable sensor letter
Number via output terminal (4) export；Subsequent output signal connects signal in signal conditioning module (6) by signal amplification module
(13), after filtering (14) and Hz noise (15) processing, using signal conditioning module (6) collection voltages signal and number is converted to
It is passed through after value by being transmitted on fieldbus (7), after the clock signal that GPS module (12) generate is added in single-chip microcontroller (8), by data
Reason module (10) sends Modular Data fieldbus (7) back to, and data memory module (9) can direct storing data processing module
(10) data caused by, while storing fieldbus and being transferred from definition signal, for post analysis and data processing purposes；Simultaneously
Single-chip microcontroller (8) according to store customized signal further pass through external interface (11) to need protective device progress power-off protection,
Start safeguard procedures measure, and by including that acousto-optic electric signal carries out alarm operation.
6. circumference vibration monitoring prior-warning device according to claim 1, it is characterised in that be equipped with acquisition module (16), adopt
With AD acquisition module, there are 16 ADC chips, the time signal group that the signal after acquisition is generated plus GPS module is combined into
Enclosure wall circumference vibration alarming information.
7. circumference vibration monitoring prior-warning device according to claim 6, it is characterised in that the collected interference of sensor
Signal is by amplification rectification, the method for removing Hz noise, and acquired module (16), which is passed in single-chip microcontroller, carries out next step storage
With control output operation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820529897.0U CN208595974U (en) | 2018-04-13 | 2018-04-13 | A kind of circumference vibration monitoring prior-warning device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820529897.0U CN208595974U (en) | 2018-04-13 | 2018-04-13 | A kind of circumference vibration monitoring prior-warning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534889A (en) * | 2018-04-13 | 2018-09-14 | 湖北省地震局 | A kind of circumference vibration monitoring prior-warning device and method |
| CN114495459A (en) * | 2022-01-14 | 2022-05-13 | 北京大学深圳研究生院 | High-rise building structure health real-time monitoring method, device, equipment and medium |
-
2018
- 2018-04-13 CN CN201820529897.0U patent/CN208595974U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534889A (en) * | 2018-04-13 | 2018-09-14 | 湖北省地震局 | A kind of circumference vibration monitoring prior-warning device and method |
| CN114495459A (en) * | 2022-01-14 | 2022-05-13 | 北京大学深圳研究生院 | High-rise building structure health real-time monitoring method, device, equipment and medium |
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