CN207540565U - A kind of self-adapting data harvester of vibrating wire sensor - Google Patents
A kind of self-adapting data harvester of vibrating wire sensor Download PDFInfo
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- CN207540565U CN207540565U CN201721747459.3U CN201721747459U CN207540565U CN 207540565 U CN207540565 U CN 207540565U CN 201721747459 U CN201721747459 U CN 201721747459U CN 207540565 U CN207540565 U CN 207540565U
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Abstract
The utility model discloses a kind of self-adapting data harvesters of vibrating wire sensor, and including controller plc, pulse excitation signal is provided for passing through energizing circuit to be communicated with the channel of vibrating wire sensor；When the quality of the frequency signal of reception is below standard, the voltage of pulse excitation signal is increased into default value, and pass through energizing circuit and provide pulse excitation signal to be communicated with the channel of vibrating wire sensor；When the requisite quality of the frequency signal of reception, pulse excitation signal is sent by energizing circuit, data processing is carried out by signal receiving conditioning circuit frequency acquisition signal, and based on collected frequency signal.The utility model solves the problems, such as that various vibrating wire sensor difficulty excitations, easy excitated damage sensor, signal recycling are ropy using adaptive excitation method, improves the reliability of data acquisition.
Description
Technical field
The utility model is related to a kind of acquisitions of the self-adapting data of field of civil engineering more particularly to vibrating wire sensor to fill
It puts.
Background technology
The one kind of pile foundation as building base configuration form, is embedded in underground, belongs to concealed work.Accurate judgement pile foundation work
The quality of journey is widely used in vibrating wire sensor building construction, science of bridge building, complex industrial environment, and principle simple realization side
Just the features such as.But data record bothers, and the data after recycling are secondary physical data, after specific transformational relation is needed to calculate
Target data can just be obtained and measured political reform trend is obtained by mass data.And user is also difficult to slap on the market at present
Hold so many conversion formula and Trend judgement skill.
When vibrating wire acquirer acquires vibrating wire sensor signal, need first to send high pressure activation signal to vibrating wire sensor line
Circle, after string wire starting of oscillation, Acquisition Circuit pick-up winding inductive signal calculates sensor frequency and signal amplitude, so as to complete one
Secondary vibrating wire sensor acquisition.When vibrating wire sensor is normal, the high-voltage signal that vibrating wire acquirer is sent is then return to and shakes by coil
String Acquisition Instrument forms a complete excitation circuit.But when vibrating wire sensor exception, vibrating wire acquirer is sensed to vibratory string at this time
Device sends high pressure activation signal, may damage vibrating wire sensor and vibrating wire acquirer.
In the prior art, vibrating wire sensor data acquisition is primarily present following problem：
Sensor is not easy excitated, sensor excessively excitation is impaired, signal recycles of poor quality and data unmanageable etc., for needing
The project data of long term monitoring is wanted to obtain the problems such as difficult, data management is cumbersome, data are not intuitive.
Invention content
The utility model provides a kind of self-adapting data harvester of vibrating wire sensor, solves sensor in the prior art
The excessively excitation of not easy excitated, sensor is impaired, signal recycling is of poor quality, data acquisition is difficult, the unmanageable technical problem of data.
The utility model is achieved through the following technical solutions：
A kind of self-adapting data harvester of vibrating wire sensor, including：
Controller provides pulse excitation signal for passing through energizing circuit to be communicated with the channel of vibrating wire sensor；For
Judge whether the quality of the frequency signal received is up to standard；When the quality for the frequency signal for judging to receive is below standard, pulse is swashed
Encouraging the voltage of signal increases default value, and passes through energizing circuit and provide pulse excitation letter to be communicated with the channel of vibrating wire sensor
Number；When the requisite quality for the frequency signal for judging to receive, pulse excitation signal is sent by energizing circuit, is received by signal
Modulate circuit frequency acquisition signal, and data processing is carried out based on collected frequency signal；
Energizing circuit, for providing pulse excitation signal for the channel for being communicated with vibrating wire sensor；
Signal receiving conditioning circuit generates for receiving the vibrating wire sensor under pulse excitation signal effect
Frequency signal, and frequency signal is sent to the controller.
The utility model provides a kind of self-adapting data harvester of vibrating wire sensor, and controller is by energizing circuit
The channel for being communicated with vibrating wire sensor provides pulse excitation signal；Signal receiving conditioning circuit receives the vibrating wire sensor in institute
The lower frequency signal generated of pulse excitation signal effect is stated, and frequency signal is sent to the controller；The controller is sentenced
Whether the quality for the frequency signal that disconnecting is received is up to standard；When the controller judges that the quality of the frequency signal received is below standard,
The voltage of pulse excitation signal is increased default value by the controller, and it is to be communicated with vibrating wire sensor to pass through energizing circuit
Channel provides pulse excitation signal；When the controller judges the requisite quality of the frequency signal received, pass through energizing circuit
Pulse excitation signal is sent, is carried out by signal receiving conditioning circuit frequency acquisition signal, and based on collected frequency signal
Data processing.The utility model solves various vibrating wire sensor difficulty excitations, easy excitated damage sensing using adaptive excitation method
Device, signal recycle ropy problem, improve the reliability of data acquisition.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is a kind of self-adapting data harvester flow chart of vibrating wire sensor of the utility model embodiment；
Fig. 2 is a kind of self-adapting data harvester structure diagram of vibrating wire sensor of the utility model embodiment；
Fig. 3 is a kind of structure diagram of energizing circuit of the utility model embodiment；
Fig. 4 is a kind of structure diagram of signal receiving conditioning circuit of the utility model embodiment.
Specific embodiment
Above-mentioned purpose, feature and advantage to enable the utility model are more obvious understandable, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
As shown in Figure 1, a kind of self-adapting data harvester of the vibrating wire sensor provided for the utility model embodiment
Work step, as shown in Figure 1, including：
Step 101, controller provide pulse excitation signal by energizing circuit to be communicated with the channel of vibrating wire sensor；
Wherein, the controller sends pulse successively by energizing circuit to multiple channels for being communicated with vibrating string type sensor
Pumping signal, wherein, energizing circuit and signal detection modulate circuit are connected with multiple channels from different vibrating wire sensors.
Step 102, signal receiving conditioning circuit receive the vibrating wire sensor and are produced under pulse excitation signal effect
Raw frequency signal, and frequency signal is sent to the controller；
Wherein, step 102 can specifically include：
Step 102-1, the frequency signal that the vibrating wire sensor generates under pulse excitation signal effect is carried out
Multiple-stage filtering and amplification；
Step 102-2, multiple-stage filtering and amplified frequency signal are sent to the controller
Step 103, the controller judge whether the quality of the frequency signal received is up to standard, when controller judgement connects
It when the quality of the frequency signal of receipts is below standard, jumps to step 104 and continues to execute, when the controller judges the frequency received letter
Number requisite quality when, jump to step 105 and continue to execute；
Wherein, the controller judges the excitation whether up to standard that can be received by judgement of the quality of the frequency signal received
Frequency signal whether there is effective waveform of preset quantity.Signal quality judges:Each signal quilt after hardware multiple-stage filtering and amplification
Processor high speed captures, and the data after capture are carried out digital filtering processing and finally judge that whetheing there is 256 after this time exciting has
Waveform is imitated, if illustrating excitation energy deficiency without if, the damped vibration after excitation is caused to be held time deficiency, therefore needs to improve and swash
Encourage output.It is on the contrary then excite success.
The voltage of pulse excitation signal is increased default value by step 104, the controller, and passes through energizing circuit to connect
The channel for being connected with vibrating wire sensor provides pulse excitation signal；
Wherein, the voltage of pulse excitation signal is controllable for processor, and voltage control output foundation is recycling signal every time
Quality.The voltage of each pulse excitation signal is since minimum voltage（10V DC）Start each step-length 10V, gradually increase,
Stable pulse exports after accumulative triggering repeatedly after recycling signal quality is up to standard.
Step 105 sends pulse excitation signal by energizing circuit, is believed by signal receiving conditioning circuit frequency acquisition
Number, and data processing is carried out based on collected frequency signal.
After step 105, the voltage value of the requisite quality of storing frequencies signal and logical from the connection of different vibrating wire sensors
Road identifies, and during so as to subsequent acquisition vibrating wire sensor, can directly read the voltage value of storage and gap marker sends pulse and swashs
Encourage signal.
The utility model provides a kind of self-adapting data harvester of vibrating wire sensor, and controller is by energizing circuit
The channel for being communicated with vibrating wire sensor provides pulse excitation signal；Signal receiving conditioning circuit receives the vibrating wire sensor in institute
The lower frequency signal generated of pulse excitation signal effect is stated, and frequency signal is sent to the controller；The controller is sentenced
Whether the quality for the frequency signal that disconnecting is received is up to standard；When the controller judges that the quality of the frequency signal received is below standard,
The voltage of pulse excitation signal is increased default value by the controller, and it is to be communicated with vibrating wire sensor to pass through energizing circuit
Channel provides pulse excitation signal；When the controller judges the requisite quality of the frequency signal received, pass through energizing circuit
Pulse excitation signal is sent, is carried out by signal receiving conditioning circuit frequency acquisition signal, and based on collected frequency signal
Data processing.The utility model solves various vibrating wire sensor difficulty excitations, easy excitated damage sensing using adaptive excitation method
Device, signal recycle ropy problem, improve the reliability of data acquisition.
The utility model embodiment additionally provides a kind of self-adapting data harvester of vibrating wire sensor, as shown in Fig. 2,
Including：
Controller provides pulse excitation signal for passing through energizing circuit to be communicated with the channel of vibrating wire sensor；For
Judge whether the quality of the frequency signal received is up to standard；When the quality for the frequency signal for judging to receive is below standard, pulse is swashed
Encouraging the voltage of signal increases default value, and passes through energizing circuit and provide pulse excitation letter to be communicated with the channel of vibrating wire sensor
Number；When the requisite quality for the frequency signal for judging to receive, pulse excitation signal is sent by energizing circuit, is received by signal
Modulate circuit frequency acquisition signal, and data processing is carried out based on collected frequency signal；
Energizing circuit, for providing pulse excitation signal for the channel for being communicated with vibrating wire sensor；
Signal receiving conditioning circuit generates for receiving the vibrating wire sensor under pulse excitation signal effect
Frequency signal, and frequency signal is sent to the controller.
Wherein, channel switching and signal isolation circuit can also be included, the channel switching is distinguished with signal isolation circuit
It is connected from energizing circuit, signal detection modulate circuit and different vibrating wire sensors, the channel switching is used with signal isolation circuit
In sending pulse excitation signal successively to multiple channels for being communicated with vibrating string type sensor.
The signal receiving conditioning circuit, including：
Filter amplification circuit unit, for the frequency for generating the vibrating wire sensor under pulse excitation signal effect
Rate signal carries out multiple-stage filtering and amplification；
Multiple-stage filtering and amplified frequency signal are sent to the controller by signal sending circuit unit.
If Fig. 3 and Fig. 4 are respectively the actual circuit knot of energizing circuit and signal receiving conditioning circuit in actual application
Structure schematic diagram.
The controller judges what is received especially by the stimulating frequency signal for judging to receive whether there is 256 effective waveforms
Whether the quality of frequency signal is up to standard.
Further include memory, for when the controller judge receive frequency signal requisite quality when, storing frequencies
The voltage value of the requisite quality of signal and the gap marker from the connection of different vibrating wire sensors.
The utility model sampling adaptive excitation method solves the problems, such as digital independent, intelligence software conversion and data trend with
Easy analysis project management.How adaptive excitation reading is giving the driving voltage of needs and how to judge that signal quality is asked
In topic, desired effect is eventually arrived at by up to a hundred experiments.
Through the above description of the embodiments, those skilled in the art can be understood that the utility model can
It is realized by the mode of software plus required hardware platform, naturally it is also possible to all be implemented by hardware, but many situations
It is lower the former be more preferably embodiment.Based on such understanding, the technical solution of the utility model contributes to background technology
Can be embodied in the form of software product in whole or in part, which can be stored in storage medium
In, such as ROM/RAM, magnetic disc, CD, it is used including some instructions so that a computer equipment（Can be personal computer,
Server or the network equipment etc.）Perform the method described in certain parts of each embodiment of the utility model or embodiment.
The utility model is described in detail above, principle of the specific case to the utility model used herein
And embodiment is expounded, the explanation of above example is only intended to the methods and its core that help understands the utility model
Thought；Meanwhile for those of ordinary skill in the art, according to the thought of the utility model, in specific embodiment and application
There will be changes in range, in conclusion the content of the present specification should not be construed as a limitation of the present invention.
Claims (5)
1. a kind of self-adapting data harvester of vibrating wire sensor, which is characterized in that including：
Controller provides pulse excitation signal for passing through energizing circuit to be communicated with the channel of vibrating wire sensor；For judging
Whether the quality of the frequency signal of reception is up to standard；When the quality for the frequency signal for judging to receive is below standard, pulse excitation is believed
Number voltage increase default value, and pass through energizing circuit and provide pulse excitation signal to be communicated with the channel of vibrating wire sensor；
When the requisite quality for the frequency signal for judging to receive, pulse excitation signal is sent by energizing circuit, is received and adjusted by signal
Circuit frequency acquisition signal is managed, and data processing is carried out based on collected frequency signal；
Energizing circuit, for providing pulse excitation signal for the channel for being communicated with vibrating wire sensor；
Signal receiving conditioning circuit, for receiving the frequency that the vibrating wire sensor generates under pulse excitation signal effect
Signal, and frequency signal is sent to the controller.
2. the self-adapting data harvester of vibrating wire sensor according to claim 1, which is characterized in that further include channel
Switching and signal isolation circuit, channel switching and signal isolation circuit respectively with energizing circuit, signal detection modulate circuit
It is connected with different vibrating wire sensors, channel switching and signal isolation circuit are used for multiple vibrating string type sensors that are communicated with
Channel sends pulse excitation signal successively.
3. the self-adapting data harvester of vibrating wire sensor according to claim 1, which is characterized in that the signal connects
Modulate circuit is received, including：
Filter amplification circuit unit, the frequency for the vibrating wire sensor to be generated under pulse excitation signal effect are believed
Number carry out multiple-stage filtering and amplification；
Multiple-stage filtering and amplified frequency signal are sent to the controller by signal sending circuit unit.
4. the self-adapting data harvester of vibrating wire sensor according to claim 1, which is characterized in that the controller
Whether judge the quality of the frequency signal received especially by the stimulating frequency signal for judging to receive whether there is 256 effective waveforms
It is up to standard.
5. the self-adapting data harvester of vibrating wire sensor according to claim 1, which is characterized in that further include storage
Device, for when the controller judge receive frequency signal requisite quality when, the electricity of the requisite quality of storing frequencies signal
Pressure value and the gap marker from the connection of different vibrating wire sensors.
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| CN201721747459.3U CN207540565U (en) | 2017-12-14 | 2017-12-14 | A kind of self-adapting data harvester of vibrating wire sensor |
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| CN201721747459.3U CN207540565U (en) | 2017-12-14 | 2017-12-14 | A kind of self-adapting data harvester of vibrating wire sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990919A (en) * | 2017-12-14 | 2018-05-04 | 上海岩联工程技术有限公司 | The self-adapting data acquisition method and device of a kind of vibrating wire sensor |
| 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 |
| CN109060005A (en) * | 2018-06-28 | 2018-12-21 | 广州大铁锐威科技有限公司 | A kind of intelligent acquisition system for building structure safety |
| CN110907868A (en) * | 2019-12-13 | 2020-03-24 | 中国人民解放军国防科技大学 | Giant magneto-impedance sensor probe excitation and signal acquisition synchronization system and giant magneto-impedance sensor |
-
2017
- 2017-12-14 CN CN201721747459.3U patent/CN207540565U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990919A (en) * | 2017-12-14 | 2018-05-04 | 上海岩联工程技术有限公司 | The self-adapting data acquisition method and device of a kind of vibrating wire sensor |
| CN109060005A (en) * | 2018-06-28 | 2018-12-21 | 广州大铁锐威科技有限公司 | A kind of intelligent acquisition system for building structure safety |
| CN109060005B (en) * | 2018-06-28 | 2021-03-05 | 广州大铁锐威科技有限公司 | Intelligent acquisition system for large building structure safety |
| 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 |
| CN110907868A (en) * | 2019-12-13 | 2020-03-24 | 中国人民解放军国防科技大学 | Giant magneto-impedance sensor probe excitation and signal acquisition synchronization system and giant magneto-impedance sensor |
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