CN105203079A - Settlement monitoring system based on piezoresistive level gauge and control method of settlement monitoring system - Google Patents
Settlement monitoring system based on piezoresistive level gauge and control method of settlement monitoring system Download PDFInfo
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- CN105203079A CN105203079A CN201510700078.9A CN201510700078A CN105203079A CN 105203079 A CN105203079 A CN 105203079A CN 201510700078 A CN201510700078 A CN 201510700078A CN 105203079 A CN105203079 A CN 105203079A
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- monitoring system
- modular converter
- scm
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- single chip
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a settlement monitoring system based on a piezoresistive level gauge and a control method of the settlement monitoring system. The system comprises a first liquid storage tank, wherein the bottom of the first liquid storage tank is fixedly connected with a piezoresistive sensor; an output end of the piezoresistive sensor is electrically connected with an input end of an amplifying conversion module; the amplifying conversion module is bidirectionally and electrically connected with a singlechip system; an input end of the singlechip system is electrically connected with a temperature sensor and a storage chip respectively; the singlechip system is bidirectionally and electrically connected with a reset circuit module, a low power consumption module and a 485 control circuit module respectively. According to the settlement monitoring system based on the piezoresistive level gauge, the pressure difference between a liquid level and air is measured by adopting the piezoresistive sensor, measuring points can be represented in real time just by settling the liquid level pressure difference without flowing of a liquid level, and the data real-time property is higher; in addition, the level gauge of the piezoresistive sensor has the advantages of small size, large measuring range and high precision and is convenient for people to carry out field construction and installation.
Description
Technical field
The present invention relates to Geotechnical Engineering monitoring technical field, be specially a kind of sedimentation monitoring system based on pressure resistance type spirit-leveling instrument and control method thereof.
Background technology
In engineering construction and large-sized artificial building, because foundation structure or other many-sided reasons, all sedimentation can be there is, settlement observation is a very basic monitoring parameter in engineering construction, some subsiding extent is in allowed band, and some then may cause the disappearance even catastrophic failure of construction quality.And then especially aobvious important for the observation of the heavy construction sedimentation completed, typically the sedimentation of such as subway, bridge, dam will cause great accident, causes great casualties and other social dangers.
In recent years, along with the capital construction of country gets more and more, accident resulting from poor quality of projects is also more and more frequent.And the tenure of use of a lot of heavy construction is also frequently to the time limit, needs to monitor it and run healthy.Settling amount is the very important parameter of of engineering health, and traditional observation method is artificial spirit-leveling instrument or inductance type and capacitive hydrostatic level, and current monitoring means all automatic monitoring is main, so personal monitoring is substantially superseded.And inductance type and condenser type manager spirit-leveling instrument are all the flowings adopting fluid reservoir to cause liquid level with monitors generation sedimentation, thus drive the floating drive measuring staff of buoy, because reasons in structure, multi-jointly be transferred to measuring staff, and measuring staff and tube wall have certain friction force, sedimentation that must be certain just can embody, data zero point beat inaccurate, and its principle of work determine volume must be huge, be unfavorable for very much site operation and installation.
Summary of the invention
The object of the present invention is to provide a kind of sedimentation monitoring system based on pressure resistance type spirit-leveling instrument and control method thereof, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, first aspect present invention provides a kind of sedimentation monitoring system based on pressure resistance type spirit-leveling instrument, comprise the first fluid reservoir, the bottom of described first fluid reservoir is fixedly connected with piezoresistance sensor, the output terminal of described piezoresistance sensor is electrically connected with the input end amplifying modular converter, described amplification modular converter and the two-way electric connection of Single Chip Microcomputer (SCM) system, the input end of described Single Chip Microcomputer (SCM) system is electrically connected with temperature sensor and storage chip respectively, described Single Chip Microcomputer (SCM) system respectively with reset circuit module, low-power dissipation power supply module and the two-way electric connection of 485 control circuit module.
Preferably, described first fluid reservoir is fixedly connected with the second fluid reservoir by conduit, and the top of described second fluid reservoir is communicated with wireway.
Preferably, described piezoresistance sensor is set to low-power consumption full-bridge resistance strain-gauge transducer.
Preferably, described amplification modular converter comprises A/D modular converter and circuit amplification module, and the input end of the output terminal of circuit amplification module and A/D modular converter is electrically connected.
Preferably, described Single Chip Microcomputer (SCM) system is connected with bus long distance wireless by 485 control circuit modules.
Second aspect present invention provides a kind of control method of the sedimentation monitoring system based on pressure resistance type spirit-leveling instrument, settlement monitoring is carried out by piezoresistance sensor, information carries out changing and amplifying by the A/D modular converter again in amplification modular converter and circuit amplification module, conversion and the information of amplifying are passed to Single Chip Microcomputer (SCM) system and are carried out processing and sending, information is passed to reset circuit module and 485 control circuit modules by Single Chip Microcomputer (SCM) system, and information remote is radioed to bus by 485 control circuit modules.
Compared with prior art, the invention has the beneficial effects as follows: should based on the sedimentation monitoring system of pressure resistance type spirit-leveling instrument and control method, by adopting the pressure reduction between piezoresistance sensor measurement liquid level and air, thus realize the most direct to the sedimentation of monitoring object, monitor the most intuitively, measurement point flows without the need to liquid level, as long as sedimentation has liquid level pressure reduction just energy real-time embodying, real-time property is stronger, and use the spirit-leveling instrument of piezoresistance sensor, volume is little, range is large, precision is high, be convenient for people to carry out site operation and installation, the impact of air pressure variations on measuring accuracy is got rid of by wireway, by arranging storage chip, the parameters of inventory level instrument and storage of measurement data, conveniently carry out contrasting and reference, by arranging low-power dissipation power supply module and piezoresistance sensor, and piezoresistance sensor is set to low-power consumption full-bridge resistance strain-gauge transducer, reduce bus pressure drop, can make bus-powered apart from farther.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is structural principle block diagram of the present invention;
Fig. 3 is the structural principle block diagram that the present invention amplifies modular converter;
Fig. 4 is the circuit diagram of piezoresistance sensor of the present invention.
In figure: 1 first fluid reservoir, 2 conduits, 3 second fluid reservoirs, 4 wireways, 5 piezoresistance sensors, 6 amplify modular converter, 7A/D modular converter, 8 circuit amplification modules, 9 Single Chip Microcomputer (SCM) system, 10 reset circuit modules, 11 low-power dissipation power supply modules, 12 storage chips, 13 temperature sensors, 14485 control circuit modules.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-3, the invention provides a kind of technical scheme: a kind of sedimentation monitoring system based on pressure resistance type spirit-leveling instrument, comprise the first fluid reservoir 1, first fluid reservoir 1 is fixedly connected with the second fluid reservoir 3 by conduit 2, the top of the second fluid reservoir 3 is communicated with wireway 4, the impact of air pressure variations on measuring accuracy is got rid of by wireway 4, the bottom of the first fluid reservoir 1 is fixedly connected with piezoresistance sensor 5, the pressure reduction between liquid level and air is measured by employing piezoresistance sensor 5, thus realize the most direct to the sedimentation of monitoring object, monitor the most intuitively, measurement point flows without the need to liquid level, as long as sedimentation has liquid level pressure reduction just energy real-time embodying, real-time property is stronger, and use the spirit-leveling instrument of piezoresistance sensor 5, volume is little, range is large, precision is high, be convenient for people to carry out site operation and installation.
Refer to Fig. 4, piezoresistance sensor 5 adopts resistance full bridge structure, is specifically set to low-power consumption full-bridge resistance strain-gauge transducer, its A, C termination direct supply, claims for bridge voltage; The voltage that B, D end exports for piezoresistance sensor, is output terminal.When bridge output voltage is that zero formula electric bridge is in equilibrium state, for ensureing the accuracy measured, zeroing makes bridge balance before each measurement.
The output terminal of piezoresistance sensor 5 is electrically connected with the input end amplifying modular converter 6, amplify modular converter 6 and comprise A/D modular converter 7 and circuit amplification module 8, and the input end of the output terminal of circuit amplification module 8 and A/D modular converter 7 is electrically connected, amplify modular converter 6 and the two-way electric connection of Single Chip Microcomputer (SCM) system 9.
The input end of Single Chip Microcomputer (SCM) system 9 is electrically connected with temperature sensor 13 and storage chip 12 respectively, by arranging storage chip 12, the parameters of inventory level instrument and storage of measurement data, conveniently carry out contrasting and reference, Single Chip Microcomputer (SCM) system 9 respectively with reset circuit module 10, the two-way electric connection of low-power dissipation power supply module 11 and 485 control circuit module 14, Single Chip Microcomputer (SCM) system 9 is connected with bus long distance wireless by 485 control circuit modules 14, by arranging low-power dissipation power supply module 11 and piezoresistance sensor 5, and piezoresistance sensor 5 is set to low-power consumption full-bridge resistance strain-gauge transducer, reduce bus pressure drop, can make bus-powered apart from farther.
A/D modular converter 7 is after piezoresistance sensor 5 is returned to zero by electronic potentiometer and the two-way voltage difference of simulation is converted to a road and the analog voltage amplified, thus Single Chip Microcomputer (SCM) system 9 collects dropout voltage and changes into digital signal, after collecting corresponding parameter, intend dissolving pressure value by calibration coefficient on storage chip 12, data are sent with certain form by the 485 control circuit modules 14 be connected with its hardware by rendezvous protocol by Single Chip Microcomputer (SCM) system 9.
Principle of work: when should use based on the sedimentation monitoring system of pressure resistance type spirit-leveling instrument, settlement monitoring is carried out by piezoresistance sensor 5, information carries out changing and amplifying by the A/D modular converter 7 again in amplification modular converter 6 and circuit amplification module 8, conversion and the information of amplifying are passed to Single Chip Microcomputer (SCM) system 9 and are carried out processing and sending, information is passed to reset circuit module 10 and 485 control circuit module 14,485 control circuit module 14 and information remote is radioed to bus by Single Chip Microcomputer (SCM) system 9.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalents thereof.
Claims (6)
1. the sedimentation monitoring system based on pressure resistance type spirit-leveling instrument, comprise the first fluid reservoir (1), the bottom of described first fluid reservoir (1) is fixedly connected with piezoresistance sensor (5), it is characterized in that: the output terminal of described piezoresistance sensor (5) is electrically connected with the input end amplifying modular converter (6), described amplification modular converter (6) and Single Chip Microcomputer (SCM) system (9) two-way electric connection, the input end of described Single Chip Microcomputer (SCM) system (9) is electrically connected with temperature sensor (13) and storage chip (12) respectively, described Single Chip Microcomputer (SCM) system (9) respectively with reset circuit module (10), low-power dissipation power supply module (11) and 485 control circuit module (14) two-way electric connections.
2. a kind of sedimentation monitoring system based on pressure resistance type spirit-leveling instrument according to claim 1, it is characterized in that: described first fluid reservoir (1) is fixedly connected with the second fluid reservoir (3) by conduit (2), the top of described second fluid reservoir (3) is communicated with wireway (4).
3. a kind of sedimentation monitoring system based on pressure resistance type spirit-leveling instrument according to claim 1, is characterized in that: described piezoresistance sensor (5) is set to low-power consumption full-bridge resistance strain-gauge transducer.
4. a kind of sedimentation monitoring system based on pressure resistance type spirit-leveling instrument according to claim 1, it is characterized in that: described amplification modular converter (6) comprises A/D modular converter (7) and circuit amplification module (8), and the input end of the output terminal of circuit amplification module (8) and A/D modular converter (7) is electrically connected.
5. a kind of sedimentation monitoring system based on pressure resistance type spirit-leveling instrument according to claim 1, is characterized in that: described Single Chip Microcomputer (SCM) system (9) is connected with bus long distance wireless by 485 control circuit modules (14).
6. the control method based on the sedimentation monitoring system of pressure resistance type spirit-leveling instrument, it is characterized in that, settlement monitoring is carried out by piezoresistance sensor (5), information carries out changing and amplifying by the A/D modular converter (7) again in amplification modular converter (6) and circuit amplification module (8), conversion and the information of amplifying are passed to Single Chip Microcomputer (SCM) system (9) and are carried out processing and sending, information is passed to reset circuit module (10) and 485 control circuit modules (14) by Single Chip Microcomputer (SCM) system (9), information remote is radioed to bus by 485 control circuit modules (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510700078.9A CN105203079A (en) | 2015-10-24 | 2015-10-24 | Settlement monitoring system based on piezoresistive level gauge and control method of settlement monitoring system |
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| CN201510700078.9A CN105203079A (en) | 2015-10-24 | 2015-10-24 | Settlement monitoring system based on piezoresistive level gauge and control method of settlement monitoring system |
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| CN201510700078.9A Pending CN105203079A (en) | 2015-10-24 | 2015-10-24 | Settlement monitoring system based on piezoresistive level gauge and control method of settlement monitoring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480871A (en) * | 2016-11-28 | 2017-03-08 | 大连海大恒信土木工程技术有限公司 | A kind of automatization's settlement monitoring device and method being suitable for Yu Haiyang land reclamation construction usage |
| CN109391695A (en) * | 2018-11-19 | 2019-02-26 | 湖南北斗星空自动化科技有限公司 | Based on the narrowband NB-IoT Internet of Things ground monitoring method, device and system |
| CN109458984A (en) * | 2018-12-12 | 2019-03-12 | 中交第二航务工程局有限公司 | Tunnel deformation real-time monitoring device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106480871A (en) * | 2016-11-28 | 2017-03-08 | 大连海大恒信土木工程技术有限公司 | A kind of automatization's settlement monitoring device and method being suitable for Yu Haiyang land reclamation construction usage |
| CN106480871B (en) * | 2016-11-28 | 2019-05-17 | 大连海大恒信土木工程技术有限公司 | A kind of automation settlement monitoring device and method being applicable in Yu Haiyang's land reclamation construction usage |
| CN109391695A (en) * | 2018-11-19 | 2019-02-26 | 湖南北斗星空自动化科技有限公司 | Based on the narrowband NB-IoT Internet of Things ground monitoring method, device and system |
| CN109458984A (en) * | 2018-12-12 | 2019-03-12 | 中交第二航务工程局有限公司 | Tunnel deformation real-time monitoring device and method |
| CN109458984B (en) * | 2018-12-12 | 2023-09-12 | 中交第二航务工程局有限公司 | Tunnel deformation real-time monitoring device and method |
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