CN206019711U - A kind of wireless vibratory string acquisition system of synchronized sampling - Google Patents
A kind of wireless vibratory string acquisition system of synchronized sampling Download PDFInfo
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- CN206019711U CN206019711U CN201620874087.XU CN201620874087U CN206019711U CN 206019711 U CN206019711 U CN 206019711U CN 201620874087 U CN201620874087 U CN 201620874087U CN 206019711 U CN206019711 U CN 206019711U
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Abstract
This utility model provides a kind of wireless vibratory string acquisition system of synchronized sampling, including main control end（1）, vibrating wire sensor collection terminal（2）And vibrating string type sensor（3）.Main control end（1）Wirelessly with vibrating wire sensor collection terminal（2）In all acquisition nodes carry out networking and the interaction of data；Vibrating wire sensor collection terminal（2）In each acquisition node, receive and respond from main control end（1）The all operations order for sending；Vibrating string type sensor（3）The miniature deformation of the detected parts such as bridge, side slope is perceived, is changed into electric signal transmission and is given vibrating wire sensor collection terminal（2）It is acquired.This utility model is using wirelessly, it is achieved that the function of each node synchronized sampling, detection efficiency are greatly improved, while in turn ensuring that data accurately and reliably.
Description
Technical field
This utility model is related to a kind of vibratory string acquisition system, belongs to rock and soil engineering detection monitoring technical field.
Background technology
In the safety monitoring to Geotechnical Engineering, road traffic facility, large buildings etc., vibrating string type sensor is generally adopted
Deng physical quantitys such as the strain of Safety Monitoring Instruments monitor stress, temperature, seam aperture, seepage and deformations, safety is judged in order to analyze
Situation.The vibration natural frequency parameter of the string wire inside vibrating string type sensor is the most key measurement factor, measures steel at present
The frequency parameter of string is generally using the method for exciting pick-up：Acquisition terminal sends single pulse excitation letter to vibrating string type sensor first
Number or swept frequency excitation signal, to vibrating string type sensor feed-in excitation energy, make the string wire inside vibrating string type sensor produce vibration.
After revocation pumping signal, the string wire of vibrating string type sensor is in free harmonic vibration state, with specific frequency resonance, the resonant frequency
There is specific corresponding relation with the parameter measured by vibrating string type sensor.Acquisition terminal is detected again, processes vibrating string type sensor
Resonance signal, obtains the natural frequency of its resonant frequency, i.e. string wire.
Vibrating wire sensor monitoring is generally divided into high pressure using excitation method and manipulates the strings two kinds of exciting and low pressure scanning frequency excitation, but this
Two kinds of exciting modes are all present compared with big limitation.High pressure manipulate the strings exciting mode be by high frequency transformer produce high pressure exciting pulse
Vibrate string wire, Vp-p when exciting>100V, energized string wire will be vibrated by induction coil and be converted into free damping vibration
Sine voltage signal is exported from sensor.Low pressure scanning frequency excitation is to select suitable frequency band according to the natural frequency of sensor,
The scanning frequency pulse string signal that frequency becomes larger or diminishes is applied to sensor, when frequency and the intrinsic frequency of string wire of accumulation signal
When rate is close, string wire can be rapidly achieved resonance state, and under resonance state, amplitude is maximum, can produce larger induction electromotive force, pass
The frequency signal signal to noise ratio of sensor output is higher and be easy to measure.The limitation of both exciting modes is shown as respectively：High pressure
Mode of manipulating the strings exciting, string wire vibration duration are short, and signal is difficult to pick up, and certainty of measurement is poor, and high voltage easily accelerates string wire
Aging cause sensor failure；Although low pressure scanning frequency excitation mode employs low voltage excitation, protects string wire, but frequency sweep is believed
Number it is the continuous impulse signal from lower-frequency limit to upper frequency limit, in order to ensure that exciting effect, the pulse of each frequency will be held
Continue several cycles, the exciting time is oversize.
At present, by the way of the domestic vibratory string acquisition system for monitorings such as bridge, side slopes is generally connected using wire cable,
Wiring is loaded down with trivial details, and installation cost and maintenance cost are high.Therefore, using radio connection be following monitoring development trend.
Chinese invention patent application CN102426052A discloses a kind of vibration wire type data acquisition system and method, the system
Including vibrating string type sensor, channel selection circuit, excitation chain, pick-up circuit, electric power management circuit and processor, also include
FPGA circuits, processor are produced and send preliminary examination excited frequency control word to FPGA circuitry, and FPGA circuitry is to the sinusoidal analog letter
Control excitation chain and produce pulse signal to remove exciting vibrating string type sensor after number shaping, FPGA circuit sampling pick-up circuits defeated
Go out frequency values and pass to processor.It can be seen that, the method remain a need for 3-5 time can pickup frequency values, unfavorable
In the raising of detection efficiency, in addition, producing driving pulse pick-up circuit of sampling using FPGA control exciting circuits in the system
Output frequency value be transferred to processor, system complex is relatively costly, be not easy to integrated with promote.Particularly critical is a bit,
The acquisition system uses the mode that wire cable is connected with sensor, and which has two drawbacks, first, connects up bothersome
Arduously, especially for bad environments, when side slope and tunnel is monitored, show especially prominent.In addition, wired connection mode can not
After solving vibrating wire sensor exciting well, there is larger decay and ask in small electrical signal of reaction in long-distance transmission cable
Topic, brings very big difficulty to rear class pick-up circuit design with processing, and can largely affect frequency measurement accuracy.
Chinese invention patent application CN101832752A discloses a kind of low-power consumption of employing wireless sensor network technology
Vibration wire-type strain acquisition system, the system include computer 1, wireless control base station 2 and wireless strain sensor network 10, adopt
Communication, but the patent is related to the problem of each radio node synchronous data sampling.
In practical engineering application, especially for the ess-strain monitoring scheme of large bridge or dam in, certain survey
Generally require while monitoring two or more physical quantity at point（Such as displacement, stress, strain etc.）, can be to the measuring point
Variation tendency carry out synthesis judgment, this is accomplished by the function that each acquisition node possesses synchronized sampling, can so obtain
The data such as the displacement of synchronization, stress, strain are taken, data is analyzed, in processing procedure, accurately can be described each
The time dependent trendgram of physical quantity, provides and accurately counts for the Gernral Check-up and trend prediction of bridge or dam, early warning
According to support.Therefore, each radio node synchronous acquisition is key component of the present utility model.
Content of the invention
In order to overcome the technical problem that mentions in background technology, this utility model to provide a kind of wireless vibratory string of synchronized sampling
Main control end and vibrating wire sensor collection terminal are realized separating by acquisition system, the system, carry out data interaction using wireless mode, are tied
The 1PPS pps pulse per second signals that interrupt signal IRQ and GPS module of wireless module are provided are closed, the outside of microcontroller is connected respectively to
On interrupt line 0 and external interrupt lines 1, the nested vector interrupt controller that possesses using microcontroller, by software design master control
End and the interaction flow of vibrating wire sensor collection terminal, so that realize the function of synchronized sampling.
Technical solution adopted in the utility model is：A kind of wireless vibratory string acquisition system of synchronized sampling, including master control
End, vibrating wire sensor collection terminal, vibrating string type sensor.Wherein, vibrating wire sensor collection terminal is by N（N≥32）Individual vibrating wire sensor
Collection child node composition；Key control unit of the main control end as whole acquisition system, is wirelessly sensed with vibratory string
In device collection terminal, all acquisition nodes carry out networking and the interaction of data；Each collection section in vibrating wire sensor collection terminal
Point, receives and responds all operations order sent from main control end, and the data of the vibrating string type sensor for collecting are passed through nothing
The mode of line is sent to main control end；Vibrating string type sensor perceives the miniature deformation of the detected parts such as bridge, side slope, is changed into telecommunications
Number being transferred to vibrating wire sensor collection terminal is acquired；Main control end receives each collection section in vibrating wire sensor collection terminal
On the other hand after the data of point, on the one hand carry out locally stored, upload to YL-TMS on-line monitoring system platforms in real time, realize
The remote monitoring of data.
Preferably, main control end include the first microcontroller, the first wireless module, upper transmission module, the first power circuit, first
Memory module, the first GPS module；First microprocessor is connected by SPI interface with the first wireless module；First microprocessor with
Upper transmission module is connected；First microprocessor is sequentially connected with the first memory module, the first GPS module；Based on first power circuit
In control end, all modules provide power supply.
Preferably, vibrating wire sensor collection terminal includes the second microcontroller, the second wireless module, exciting circuit, the second electricity
Source circuit, the second memory module, the second GPS module, signal conditioning circuit；Second microprocessor is passed through with the second wireless module
SPI interface is connected；Second microcontroller is connected with exciting circuit, and control exciting circuit output swept-frequency signal deactivates type vibration wire and passes
Sensor, after vibrating string type sensor is energized, produces sensing output signal, is amplified, filters through signal conditioning circuit, shaping
Afterwards, there is provided carry out capture counting to the second microcontroller, so as to calculate the resonant frequency of vibrating string type sensor, finally converse
The deformation physical quantity of vibrating wire sensor；Second source circuit provides power supply for all modules in vibrating wire sensor collection terminal.
Preferably, the second microcontroller is by capturing the frequency signal that signal conditioning circuit is exported, feedback control excitation electricity
The scope of road swept-frequency signal, makes which reach resonance state so as to automatically adjust sensor, it is ensured that the detection essence of vibrating string type sensor
Degree.
Preferably, vibrating string type sensor is type vibration wire slit gauge or vibrating wire piezometer.
Preferably, the first microcontroller, the second microcontroller are STM32F103VET6.
Preferably, the first wireless module, the second wireless module are EL1663B_PA_1W.
Preferably, the first GPS module, the second GPS module are UART GPS NEO-6M modules.
Compared with prior art, this utility model has the advantages that：1st, the system small volume and less weight, be easy to integrated with
Large-scale popularization and application, in addition, using wirelessly solving traditional wire vibratory string acquisition system difficult wiring, small sense
The signal of telecommunication is answered to there are problems that in long-distance transmission cable larger.2nd, the work(of each radio node synchronized sampling is achieved
Can, the data such as the displacement of synchronization, stress, strain can be obtained, is easy to accurately to describe each physical quantity time dependent
Trendgram, provides accurately data supporting for the Gernral Check-up and trend prediction of bridge or dam, early warning.
Description of the drawings
Fig. 1 is a kind of entirety of the wireless vibratory string acquisition system of synchronized sampling of one of embodiment of the present utility model
Schematic diagram；
Fig. 2 is the structured flowchart of main control end 1 in system shown in Figure 1；
Fig. 3 is the structured flowchart of vibrating wire sensor collection terminal 2 in system shown in Figure 1；
Fig. 4 is the microcontroller in main control end 1 and vibrating wire sensor collection terminal 2 in system shown in Fig. 1-3, GPS module, nothing
The pin connection figure of wire module and antenna；
Fig. 5 is the using method of the wireless vibratory string acquisition system of the synchronized sampling of one of embodiment of the present utility model
Flow chart；
In figure, 1 main control end；2 vibrating wire sensor collection terminals；3 vibrating wire sensors；101 first microcontrollers；
102 first wireless modules；Transmission module on 103；104 first power circuits；105 first memory modules；106 first
GPS module；201 second microcontrollers；202 second wireless modules；203 exciting circuits；204 second source circuits；
205 second storage circuits；206 second GPS modules；207 signal conditioning circuits.
Specific embodiment
This utility model is further described in detail with preferred embodiment below in conjunction with the accompanying drawings.
Fig. 1 is referred to, is the wireless vibratory string acquisition system overall schematic of this utility model synchronized sampling.This utility model
The wireless vibratory string acquisition system of synchronized sampling is made up of main control end 1, vibrating wire sensor collection terminal 2 and vibrating wire sensor 3, main control end
1 as whole system core control portions, enter interacting for line command and data with vibrating wire sensor collection terminal 2, complete to shaking
The data for collecting are carried out locally stored and upload to distributed-network monitoring platform, are easy to by the data acquisition of chord sensor 3 in real time
Monitoring unit remote monitoring and analysis；Vibrating wire sensor collection terminal 2 is used for the various instructions for receiving and responding the transmission of main control end 1,
The capture that row energization and frequency are entered to vibrating wire sensor 3, by the physical deformation amount digitized of vibrating wire sensor 3 after, be sent to master
Control end 1；Vibrating wire sensor 3 is to be arranged in all kinds of vibrating string type sensors that monitors on measuring point, such as type vibration wire slit gauge or vibratory string
Formula osmometer change etc.；Wherein, wireless module and antenna are configured with main control end 1 and vibrating wire sensor collection terminal 2.
Second wireless module 202 in the first wireless module 102 and vibrating wire sensor collection terminal 2 in main control end 1, adopts
EL1663B_PA_1W, EL1663B_PA_1W are the high power modules that a output is 1W, use SI4463 kernels,
Interface operation is simple, only can just complete configuration and the transmission-receiving function of all parameters by SPI interface, and penetration capacity is strong, communication
Distance is up to 10KM.
The second microcontroller 201 in the first microcontroller 101 and vibrating wire sensor collection terminal 2 in main control end 1, adopts
With the high-performance 32-bit microprocessor STM32F103VET6 based on ARM Cortex-M3 kernels of ST Microelectronics, pass through
SPI interface is connected with wireless module, so as to realize that main control end 1 is wirelessly entered with vibrating wire sensor collection terminal 2
The function of row interaction.
Fig. 2 is referred to, is the structured flowchart of the main control end 1 of the wireless vibratory string acquisition system of this utility model synchronized sampling.
Main control end 1 is stored by first microprocessor 101, the first wireless module 102, upper transmission module 103, the first power circuit 104, first
Module 105, the first GPS module 106 are constituted；Wherein, upper transmission module 103 uses the 4G data transmission terminals that company is believed in Xiamen four
(4G DTU) F2A16, on this, transmission module supports all fronts networks such as 4G, 3G, 2.5G, the more smooth more high speed of data transfer.First is micro-
Processor 101 is attached by UART interface with upper transmission module 103.First memory module 105 uses WINBOND companies
FLASH chip W25Q128FVSIG, the first memory module 105 is attached with first microprocessor 101 by SPI interface.
It is connected using UART interface between first GPS module 106 and first microprocessor 101；First power circuit 104 is master control
In end 1, all modules provide power supply.
Fig. 3 is referred to, is the vibrating wire sensor collection terminal 2 of the wireless vibratory string acquisition system of this utility model synchronized sampling
Structured flowchart.Vibrating wire sensor collection terminal 2 is by the second microcontroller 201, the second wireless module 202, exciting circuit 203, second
Power circuit 204, the second memory module 205, the second GPS module 206, signal conditioning circuit 207 are constituted.Wherein, exciting circuit
203 and signal conditioning circuit 207 be vibrating wire sensor collection terminal 2 in vital two parts, realized to type vibration wire respectively
The excitation of sensor and frequency acquisition function.
In view of high pressure is manipulated the strings, the circuit of energisation mode is complicated, sensor is easily aging, detection signal precision is low and low pressure frequency sweep
The drawbacks such as time length, the exciting circuit 203 in this utility model are carried out to vibrating wire sensor using reaction type isolation excitation chain
The core of swept frequency excitation, wherein reaction type isolation excitation chain is made up of high speed photo coupling TLP250, high speed photo coupling TLP250
By the second microcontroller 201 is produced initial swept frequency excitation signal, act on after isolation boosting on vibrating wire sensor 3, by
Push-pull output stage is carried inside high speed photo coupling TLP250, and output current is maximum up to 1.5A, can directly meet and vibratory string is sensed
The current requirements of device coil exciting, it is not necessary to extra interpolation drive circuit.
Due to vibrating string type sensor 3, after the excitation of overdriving circuit 203, the amplitude of the induction electromotive force of generation is mV levels, no
It is easy to directly be acquired and analysis, accordingly, it would be desirable to nurse one's health the tiny signal for producing.Signal conditioning circuit 207 is main
Two parts function is converted by filter and amplification and shaping to constitute, wherein, active low pass of the filter amplification circuit using LM324 compositions
Ripple device, constitutes series voltage negtive backword, makes input impedance high, and output impedance is low, and there is between input and output isolation well
Effect, in addition in addition to playing filter action, while the small electromotive force that vibrating string type sensor 3 is induced is amplified.
Shaping conversion also constitutes hysteresis comparator by one group of operational amplifier of LM324, using the hysteretic characteristic of hysteresis comparator, whole
During fractal transform, the capacity of resisting disturbance of whole signal conditioning circuit 207 is greatly improved.
The square-wave signal of the output of signal conditioning circuit 207, is connected to the second microcontroller after optocoupler 6N137 isolation
On 201 TIM2_CH2 pins.Due to vibratory string resonance frequency range be 400 ~ 4500Hz, this frequency signal stably continue when
Between be limited, it is necessary to resonance signal decay to be unlikely to affect frequency measurement before complete measuring task.Utilize in this utility model
Intervalometer inside second microcontroller 201, the method using equally accurate frequency measurement is realizing the frequency acquisition to square-wave signal.The
In two microcontrollers 201, TIM5 produces frequency F of standard, and TIM5 is connected by outside with TIM3, and the second microcontroller 201 is simultaneously
TIM2 and TIM3 is opened, in the interval for counting cycle T=200ms, TIM3 is N to the count value of the standard frequency, and TIM2 is treated
The count value for surveying square wave is n, then frequency f=nF/N of square wave to be measured.
During whole frequency measurement, only by the timer resource inside the second microcontroller 201 it is achieved that need not
Realizing the capture to frequency, simply, hardware size is little, low cost for whole system for extra increases FPGA, be easy to integrated with push away
Extensively.
Fig. 4 is referred to, is that wireless vibratory string acquisition system main control end 1 and the vibrating wire sensor of this utility model synchronized sampling is adopted
The pin connection figure of microcontroller, wireless module and GPS module in collection end 2.Microcontroller passes through SPI interface phase with wireless module
Even, interrupt signal IRQ of wireless module is connected with the external interrupt lines 0 of microcontroller；Microcontroller passes through UART with GPS module
Interface is connected, and the 1PPS pulse per second (PPS)s output signal of GPS module is connected with the external interrupt lines 1 of microcontroller；Wireless in order to prevent
The Radio frequency interference that module is produced during transmitting-receiving, is impacted to the precision of GPS module by power supply and earth-return, wireless mould
Block and GPS module are independently-powered, and the microcontroller that is fed through of both power supplys is respectively controlled.When main control end 1 is passed to vibratory string
When sensor collection terminal 2 sends the order for starting synchronized sampling, the interrupt signal IRQ pin of wireless module produces a low level arteries and veins
Punching, triggers the external interrupt lines 0 of microcontroller, enters the interrupt processing function of external interrupt 0, while processing in external interrupt 0
Enable external interrupt lines 1 to capture the 1PPS pulse signal rising edges of GPS module in function, when the pulse per second (PPS) of GPS module
When signal rising edge arrives, external interrupt lines 1 can be triggered, enter the interrupt processing function of external interrupt 1, while in external interrupt
1 processes the data acquisition for opening vibrating wire sensor collection terminal 2 in function, so as to realize the function of synchronized sampling.
Refer to Fig. 5, the wireless vibratory string acquisition system of the synchronized sampling of one of embodiment of the present utility model makes
With the flow chart of method, this method is carried out according to the following steps：
Step 1：System initialization；
Step 2：Send networking bind command；
Step 3：Start synchronized sampling；
Step 4：Obtain each acquisition node data；
Step 5：Data storage and upload；
Step 1：System initialization；Micro-control specially after system electrification, in main control end 1 and vibrating wire sensor collection terminal 2
Device processed passes through to send sync identification order to GPS module, and GPS module obtains the mark of the time server at China national time service center
Between punctual, make main control end 1 and 2 each acquisition node time synchronized of vibrating wire sensor collection terminal and pulse per second (PPS) output synchronous；Time is same
After the completion of step, the first wireless module 102 in main control end 1 is initialized as sending mode, second in vibrating wire sensor collection terminal 2
Wireless module 202 is initialized as reception pattern；
Step 2：Send networking bind command；Specially after system initialization, main control end 1 is to vibrating wire sensor collection terminal 2
Networking bind command is sent, if successful connection, the communication state display lamp of vibrating wire sensor collection terminal 2 is lighted, while master control
End 1 will automatically generate the topological structure of all connecting nodes, so as to more intuitively obtain in vibrating wire sensor collection terminal 2 each
The running status of collection child node；
Step 3：Start synchronized sampling；Specially after networking successful connection, main control end 1 is in vibrating wire sensor collection terminal 2
Each collection child node simultaneously send and start sample command, main control end 1 obtains the current time conduct of the first GPS module 106
Sampling instant, after sample command is sent completely, the first wireless module 102 is set to receive mould by the first microcontroller 101
Formula, waits the data of vibrating wire sensor collection terminal 2 to be received.When vibrating wire sensor collection terminal 2 receives what main control end 1 was sended over
After sample command, the second wireless module 202 can produce low level interrupt signal IRQ, due to Crystal Oscillator Errors and wirelessly
The error that signal may postpone, therefore, is only started to type vibration wire by interrupt signal IRQ of the generation of the second wireless module 202
The data acquisition of sensor 3, does not realize synchronized sampling.By interrupt signal IRQ of wireless module and GPS in this utility model
1PPS pulse signals, are connected with the external interrupt lines 0 and external interrupt lines 1 of the second microprocessor 201, respectively using second micro- place
The nested vector interrupt controller that reason device 201 possesses, external interrupt 1 is nested in external interrupt 0, when the second wireless module
When 202 interrupt signal IRQ arrives, external interrupt lines 0 can be triggered, enter the interrupt processing function of external interrupt 0, while outside
Portion interrupts 0 and processes the 1PPS pulse signals rising edge capture for enabling external interrupt lines 1 in function to GPS, when rising edge arrives,
External interrupt lines 1 can be triggered, the interrupt processing function of external interrupt 1 is entered, while process to open in function in external interrupt 1 shaking
The data acquisition of chord sensor collection terminal 2, so that realize the function of synchronized sampling；
Step 4：Obtain each acquisition node data；Specially after the completion of 2 data acquisition of vibrating wire sensor collection terminal, second
Second wireless module 202 is configured to sending mode by microcontroller 201, and the data for collecting are sent together with node serial number
Main control end 1 is given, after being sent, the second wireless module 202 is matched somebody with somebody by the second microcontroller 201 in vibrating wire sensor collection terminal 2
It is set to reception pattern；The first microcontroller after main control end 1 has received the data of all vibrating wire sensor collection terminals 2, in main control end 1
First wireless module 102 is configured to sending mode by device 101.
Step 5：Data storage and upload；Specially main control end 1 has received the data of all vibrating wire sensor collection terminals 2
Afterwards, the data for receiving were saved in the first memory module 105 together with the moment for starting to sample for obtaining, then by upper
Transmission module 103 upload the data to YL-TMS on-line monitoring system platforms.
Although explanation before and Description of Drawings embodiment of the present utility model, it should be understood that without departing from claim
Can there are various supplements, modification and replacement on the premise of the spirit and scope of this utility model principle that book is defined.This
Art personnel it should be understood that this utility model in actual applications can according to specific environment and job requirement without departing substantially from
It is varied from form, structure, layout, ratio, material, element, component and other side on the premise of invention criterion.Therefore,
Embodiment disclosed here is merely to illustrate and unrestricted, and protection domain of the present utility model is by technical scheme in claims
And its legal equivalents are defined, and the description before not limited to this.
Claims (10)
1. the wireless vibratory string acquisition system of a kind of synchronized sampling, it is characterised in that：Including main control end（1）, vibrating wire sensor collection
End（2）, vibrating wire sensor（3）；The main control end（1）As the key control unit of whole acquisition system, by wireless side
Formula and vibrating wire sensor collection terminal（2）In all collection child nodes carry out networking and the interaction of data；The vibrating wire sensor
Collection terminal（2）In each acquisition node, receive and respond main control end（1）The all operations order for sending, by shaking for collecting
String type sensor（3）Data be wirelessly sent to main control end（1）；The vibrating string type sensor（3）Perception bridge,
The miniature deformation of side slope detected part, is changed into electric signal transmission and gives vibrating wire sensor collection terminal（2）It is acquired.
2. the wireless vibratory string acquisition system of synchronized sampling according to claim 1, it is characterised in that：The main control end（1）
Including the first microcontroller（101）, the first wireless module（102）, upper transmission module（103）, the first power circuit（104）, first
Memory module（105）, the first GPS module（106）；First microcontroller（101）With the first wireless module（102）Pass through
SPI interface is connected；First microcontroller（101）With upper transmission module（103）It is connected；First microcontroller（101）With
First memory module（105）, the first GPS module（106）It is sequentially connected；First power circuit（104）For main control end（1）In
All modules provide power supply.
3. the wireless vibratory string acquisition system of synchronized sampling according to claim 1, it is characterised in that：The vibrating wire sensor
Collection terminal（2）Including the second microcontroller（201）, the second wireless module（202）, exciting circuit（203）, second source circuit
（204）, the second memory module（205）, the second GPS module（206）, signal conditioning circuit（207）；Second microcontroller
（201）With the second wireless module（202）It is connected by SPI interface；Second microcontroller（201）With the exciting circuit
（203）It is connected；The second source circuit（204）For the vibrating wire sensor collection terminal（2）In all modules power supplys are provided.
4. the wireless vibratory string acquisition system of synchronized sampling according to claim 1, it is characterised in that：The type vibration wire sensing
Device（3）For type vibration wire slit gauge or vibrating wire piezometer.
5. the wireless vibratory string acquisition system of synchronized sampling according to claim 2, it is characterised in that：First microcontroller
Device（101）For STM32F103VET6.
6. the wireless vibratory string acquisition system of synchronized sampling according to claim 3, it is characterised in that：Second microcontroller
Device（201）For STM32F103VET6.
7. the wireless vibratory string acquisition system of synchronized sampling according to claim 2, it is characterised in that：The first wireless mould
Block（102）For EL1663B_PA_1W.
8. the wireless vibratory string acquisition system of synchronized sampling according to claim 3, it is characterised in that：The second wireless mould
Block（202）For EL1663B_PA_1W.
9. the wireless vibratory string acquisition system of synchronized sampling according to claim 2, it is characterised in that：The first GPS moulds
Block（106）For UART GPS NEO-6M modules.
10. the wireless vibratory string acquisition system of synchronized sampling according to claim 3, it is characterised in that：The 2nd GPS moulds
Block（206）For UART GPS NEO-6M modules.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123965A (en) * | 2016-08-14 | 2016-11-16 | 上海岩联工程技术有限公司 | The wireless vibratory string acquisition system of a kind of synchronized sampling and method |
| CN106840246A (en) * | 2017-04-06 | 2017-06-13 | 中国电建集团中南勘测设计研究院有限公司 | A kind of vibrating string type sensor work condition on-line testing method and device |
| CN108922147A (en) * | 2018-08-01 | 2018-11-30 | 水利部交通运输部国家能源局南京水利科学研究院 | Vibrating wire sensor acquisition system and method and apparatus based on wireless sensor network |
-
2016
- 2016-08-14 CN CN201620874087.XU patent/CN206019711U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123965A (en) * | 2016-08-14 | 2016-11-16 | 上海岩联工程技术有限公司 | The wireless vibratory string acquisition system of a kind of synchronized sampling and method |
| CN106840246A (en) * | 2017-04-06 | 2017-06-13 | 中国电建集团中南勘测设计研究院有限公司 | A kind of vibrating string type sensor work condition on-line testing method and device |
| CN108922147A (en) * | 2018-08-01 | 2018-11-30 | 水利部交通运输部国家能源局南京水利科学研究院 | Vibrating wire sensor acquisition system and method and apparatus based on wireless sensor network |
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