CN101435689A - Method and instrument for measuring underground displacement of integrated sensor based on underground displacement - Google Patents

Method and instrument for measuring underground displacement of integrated sensor based on underground displacement Download PDF

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Publication number
CN101435689A
CN101435689A CNA2008101631477A CN200810163147A CN101435689A CN 101435689 A CN101435689 A CN 101435689A CN A2008101631477 A CNA2008101631477 A CN A2008101631477A CN 200810163147 A CN200810163147 A CN 200810163147A CN 101435689 A CN101435689 A CN 101435689A
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China
Prior art keywords
underground displacement
underground
displacement measurement
integrated sensor
measuring
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Pending
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CNA2008101631477A
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Chinese (zh)
Inventor
李青
李雄
施阁
童仁园
池金谷
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China Jiliang University
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China Jiliang University
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Abstract

The invention discloses a method and an apparatus for measuring underground displacement based on an underground displacement measuring integrated sensor. The underground displacement measuring apparatus comprises 1 to m underground displacement measuring integrated sensor units which have identical structures and are connected in series in turn from the top down through a 485 bus, wherein the mth underground displacement measuring integrated sensor unit is connected with an underground displacement measuring centralized processor A through a 485 bus; and an entire measuring cluster consisting of integrated sensors is packaged inside a heat shrinkable rubber-plastic hose. The underground displacement measuring apparatus integrates a mutual-induction coil, a deviation-measuring integrated circuit, a communication bus, a sinusoidal signal generating circuit and a sinusoidal signal measuring circuit, etc. into a measuring integrated unit, and keeps a plurality of measuring integrated units in a certain distance to form the underground displacement measuring cluster; then, the underground displacement measuring centralized processor carries out centralized processing of the displacement of each underground position; therefore, the underground displacement measuring apparatus is formed to measure deformation from the ground to a deep position.

Description

Underground displacement measurement method and instrument based on underground displacement measurement integrated sensor
Technical field
The present invention relates to a kind of displacement measuring device, especially relate to a kind of underground displacement measurement method and instrument based on underground displacement measurement integrated sensor.
Background technology
Landslide, avalanche, rubble flow, collapse, the geologic hazard of harm people's life such as earth subsidence and property safety take place before and the offset phenomena in underground deep can appear when taking place, also can be in building and water conservancy construction because of the movable offset phenomena that underground deep occurs such as excavation and piling, the former ground bottom offset is the sign before the disaster, and the latter will be the important behaviour of building and water conservancy construction environment and quality.Therefore, underground deep displacement is monitored the means of the necessity that is defence disaster, guarantee building and hydraulic engineering quality.
Existing monitoring to underground deep displacement is that utilization deviational survey method is carried out underground displacement measurement, when local bottom offset takes place, the deviational survey pipe deforms, the measuring sonde of tiltmeter produces the pitch angle, the pitch angle of measuring sonde can be read on the display gauge head on the ground, can draw underground shift value through converting.This deviational survey measuring instrument must could realize measuring the pitch angle of deviational survey pipe by from top to bottom the placement in the deviational survey pipe of manually-operated measuring sonde, and the monitoring of real-time continuous, and measurement accuracy automatically is relevant with operator's technology.Also have, when the distortion of S type takes place the deviational survey pipe that is embedded in soil body deep, or deep camber takes place when crooked, measuring sonde can't put down finishes measurement.In addition, the deviational survey pipe is the pipe made from aluminium or engineering plastics, has resistance of failure preferably, when underground soil property is softer, the displacement of descending the soil body practically is greater than the pairing shift value in the angle of inclination of deviational survey pipe, and this just can not reflect underground actual conditions exactly.
Summary of the invention
The object of the present invention is to provide a kind of underground displacement measuring instrument based on underground displacement measurement integrated sensor, propose underground displacement measurement integrated sensor unit formation, form underground displacement measuring instrument, set up underground displacement measurement.
The technical solution used in the present invention is:
One, a kind of underground displacement measurement method based on underground displacement measurement integrated sensor:
The present invention is by bottom offset measurement integrated sensor unit and a underground displacement measurement centralized processor compose in series one by one, be by measuring the relative variation of two adjacent underground displacement measurement integrated sensor units from top to bottom or from top to bottom one by one when measuring, thus measure whole from ground the distortion situation to underground deep.
Two, a kind of underground displacement measuring instrument based on underground displacement measurement integrated sensor:
The present invention from down and on be to be connected in series by 485 buses by 1~m the identical underground displacement measurement integrated sensor unit of expression of structure to form successively, wherein m underground displacement measurement integrated sensor unit is connected by 485 buses with underground displacement measurement centralized processor A, and the whole measurement string that is made of integrated sensor is encapsulated in the soft rubber plastic pipe of pyrocondensation;
Described underground displacement measurement integrated sensor unit: comprise mutual inductor, MCU, deviational survey integrated circuit, 485 bus driving circuits, A/D change-over circuit, sinusoidal voltage metering circuit and sinusoidal voltage generation circuit; MCU is connected with deviational survey integrated circuit, 485 bus driving circuits, sinusoidal voltage generation circuit respectively, the base area bottom offset is measured the instruction that centralized processor transmits from 485 buses, MCU is to link with the sinusoidal voltage metering circuit through an end of electronic analog swtich control coil, also be connected with sinusoidal voltage generation circuit, the sinusoidal voltage metering circuit also is connected with MCU through the A/D change-over circuit;
Described underground displacement measurement centralized processor: comprise another MCU, another 485 bus driving circuits and communication module; Another MCU is connected with communication module with another 485 bus driving circuits respectively, and sends steering order by 485 buses to 1~m underground displacement measurement integrated sensor, sends the information of ground bottom offset to a distant place by communication module.
The beneficial effect that the present invention has is:
The present invention is integrated into one with mutual inductor, deviational survey integrated circuit, communication bus, sinusoidal signal generation circuit, sinusoidal signal metering circuit etc. and measures integrated unit, and a plurality of measurement integrated units are kept at a certain distance away, form underground displacement measurement string, focus on the displacement of underground each position again by underground displacement measurement centralized processor, thereby form underground displacement measuring instrument, set up a kind of new underground displacement measurement method.
Description of drawings
Fig. 1 is that underground displacement measuring instrument constitutes synoptic diagram, and 1~m represents underground displacement measurement integrated sensor among the figure; A represents underground displacement measurement centralized processor.
Fig. 2 is the figure that underground displacement measurement integrated sensor unit is formed.
Fig. 3 is the figure that underground displacement measurement centralized processor is formed.
Fig. 4 is two underground displacement measurement integrated sensor units at the underground description figure that is subjected to displacement with inclination and distortion.
Fig. 5 is the induced sinusoid of mutual inductor and the three-dimensional relationship illustraton of model of coil relative displacement and angle.
Fig. 6 is one of process flow diagram.
Fig. 7 is two of a process flow diagram.
Embodiment
As shown in Figure 1, the present invention from down and on be to be connected in series by 485 buses by 1~m the identical underground displacement measurement integrated sensor unit of expression of structure to form successively, wherein m underground displacement measurement integrated sensor unit is connected by 485 buses with underground displacement measurement centralized processor A, and the whole measurement string that is made of integrated sensor is encapsulated in the soft rubber plastic pipe of pyrocondensation;
Described underground displacement measurement integrated sensor unit: comprise mutual inductor, MCU, deviational survey integrated circuit, 485 bus driving circuits, A/D change-over circuit, sinusoidal voltage metering circuit and sinusoidal voltage generation circuit; The optional various models of MCU, MCU respectively with the deviational survey integrated circuit of deviational survey integrated circuit MMA6260Q or other models, 485 bus driving circuits, the DDS signal generating circuit of sinusoidal voltage generation circuit AD9834 or other models connects, the base area bottom offset is measured the instruction that centralized processor transmits from 485 buses, MCU is to link with the sinusoidal voltage metering circuit through an end of electronic analog swtich control coil, also be connected with sinusoidal voltage generation circuit, the integrated sinusoidal voltage metering circuit of sinusoidal voltage metering circuit AD598 or other models also is connected with MCU through the A/D change-over circuit;
Described underground displacement measurement centralized processor: comprise another MCU, another 485 bus driving circuits and communication module; Another MCU is connected with communication module with another 485 bus driving circuits respectively, and sends steering order by 485 buses to 1~m underground displacement measurement integrated sensor, sends the information of ground bottom offset to a distant place by communication module.
1. underground displacement measurement integrated sensor unit:
The composition of underground displacement measurement integrated sensor unit as shown in Figure 2.It in the frame of broken lines in the drawings the circuit part of underground displacement measurement integrated sensor unit, these circuit will be with microminiature paster components and parts, and be contained on the printed circuit board (PCB) of a diameter less than coil inside casing internal diameter, this circuit board is put into coil, constitutes underground displacement measurement integrated sensor unit with coil.MCU (microcontroller in Fig. 2 circuit, also claim single-chip microcomputer) by 485 buses, receive the steering order that underground displacement measurement centralized processor is sent, whether the sinusoidal voltage generation circuit that determines local bottom offset to measure integrated sensor unit works, electronic analog swtich is that coil and sinusoidal voltage generation circuit output end are connected, and still coil and sinusoidal voltage metering circuit input end is connected; Both do not receiving coil and the connection of sinusoidal generation circuit output end, when also not receiving coil and the connection of sinusoidal voltage metering circuit input end, single-chip microcomputer (MCU) makes the dormancy of sinusoidal voltage generation circuit, electronic analog swtich is not connected with the sinusoidal voltage metering circuit with sinusoidal voltage generation circuit by control line.The software flow block diagram of underground displacement measurement integrated sensor unit is seen Fig. 6 process flow diagram 1.
2. underground displacement measuring instrument is formed:
Fig. 1 is that the underground displacement measuring instrument that the present invention proposes is formed synoptic diagram, and underground displacement measurement centralized processor circuit block diagram as shown in Figure 3 among the figure.MCU among Fig. 3 is according to measuring method, by 485 buses, to the various places bottom offset measure integrated sensor unit send whether allow sinusoidal voltage generation circuit working and closing coil, whether allow electronic analog swtich connect the sinusoidal voltage metering circuit to carry out the steering orders such as angle of inclination that the sinusoidal voltage responded on the coil is measured, read underground displacement measurement integrated sensor unit; MCU measures induced voltage, the pitch angle that integrated sensor unit measures with the various places bottom offset, draws the relative displacement value and the tilt quantity of each underground displacement measurement integrated sensor unit according to measuring method; Simultaneously, MCU is by communication module and long-range or local composite measurement collection remittance interconnection, these contacts comprise: send induced voltage, pitch angle that records or relative displacement value and the tilt quantity of calculating according to measuring method, receive the instruction of measuring control and signal Processing.Must emphasize that communication module has following kind: 1. the GSM/GPRS communication module (GSM=GlobalSystem of Mobile communication, in be translated into: global system for mobile communications; GPRS=GeneralPacket Radio Service, in be translated into: GPRS (General Packet Radio Service) is a kind of wireless, packet-switched technology based on gsm system, provide end to end, wireless IP connects); 2. use the various wireless communication modules of the open frequency band of radio control (or frequency); 3. (Bluetooth technology is used Frequency Hopping and Time Divesion Muli-access technology based on the wireless communication module of Bluetooth technology, the standard of bluetooth is IEEE802.15, be operated in the 2.4GHz frequency band, bandwidth is 1Mb/s, is a kind of radiotelegraphy of support equipment short haul connection).The software flow block diagram of underground displacement measurement centralized processor is seen Fig. 7 process flow diagram 2.
3. underground displacement measurement method
The described underground survey instrument of Fig. 1 is formed by bottom offset measurement integrated sensor unit (abbreviation integrated sensor unit) and underground displacement measurement centralized processor are formed one by one, be by measuring the relative variation of two adjacent underground displacement measurement integrated sensor units from top to bottom one by one when actual measurement, thus measure whole from ground the distortion situation to underground deep.Two underground displacement measurement integrated sensor units shown in Figure 4 send steering order by centralized processor earlier when measuring, allow the sinusoidal voltage generation circuit start work of n unit and by the electronic analog swtich closing coil, the coil-end in the n unit presents voltage u n(mandatory declaration only has the sinusoidal voltage generation circuit of an integrated sensor unit to be activated work at every turn), the coil magnetic field of sending sinusoidal variations of n unit presented on the coil of n+1 unit and induced voltage u this moment N+1Immediately, centralized processor sends steering order, allows the sinusoidal voltage metering circuit of n+1 unit by the electronic analog swtich closing coil, records voltage u N+1In the process of measuring, only have two integrated sensor units to be waken up work, and always the sinusoidal voltage generation circuit of n unit is activated work at every turn, and sends the magnetic field of sinusoidal variations by the coil of n unit; And the sinusoidal voltage metering circuit of n+1 unit is connected the coil of n+1 unit by electronic analog swtich, thereby measures induced voltage u N+1From electromagnetic theory as can be known, the sinusoidal voltage u that sends of the sinusoidal voltage generation circuit in the n unit nDuring for stationary value, induced voltage u N+1Effective value U N+1The coil of size and n unit relevant with the coefficient of mutual inductance between the coil of n+1 unit; If total m integrated sensor unit, original state be from the coil of Unit the 1st to the coil of m unit axis all point-blank, and the axial spacing the same (see Fig. 4 (a)) of each unit between in twos; Relative translation d takes place when between the coil of the coil of n unit and n+1 unit, and perhaps the axis of the coil of the coil of n unit and n+1 unit produces angle theta (seeing Fig. 4 (b)), this moment Unit two coil between coefficient of mutual inductance change induced voltage u N+1Size change thereupon.Obviously, induced voltage u N+1Effective value U N+1The size of size and relative translation d and the size of angle theta relevant, through experiment and theoretical analysis, draw induced voltage u shown in Figure 5 N+1Effective value U N+1Relational model curve with relative translation (displacement) d and angle theta.From Fig. 2 as seen underground displacement measurement integrated sensor unit design arranged the deviational survey integrated circuit, this circuit can be measured the pitch angle of underground displacement measurement integrated sensor unit and the earth gravity vertical line, can draw the angle between n unit coil and n+1 unit coil thus.Underground displacement measurement integrated sensor unit records induced voltage u N+1Effective value U N+1After angle theta, the relational model curve according to Fig. 5 can draw the relative displacement d between n unit coil and n+1 unit coil.

Claims (2)

1, a kind of underground displacement measurement method based on underground displacement measurement integrated sensor, it is characterized in that: be by bottom offset measurement integrated sensor unit and a underground displacement measurement centralized processor compose in series one by one, be by measuring the relative variation of two adjacent underground displacement measurement integrated sensor units from top to bottom or from top to bottom one by one when measuring, thus measure whole from ground the distortion situation to underground deep.
2, a kind of instrument of implementing the described underground displacement measurement method based on underground displacement measurement integrated sensor of claim 1 is characterized in that: from down and on be to be connected in series by 485 buses by 1~m the identical underground displacement measurement integrated sensor unit of expression of structure to form successively.Wherein m underground displacement measurement integrated sensor unit is connected by 485 buses with underground displacement measurement centralized processor A, and the whole measurement string that is made of integrated sensor is encapsulated in the soft rubber plastic pipe of pyrocondensation;
Described underground displacement measurement integrated sensor unit: comprise mutual inductor, MCU, deviational survey integrated circuit, 485 bus driving circuits, A/D change-over circuit, sinusoidal voltage metering circuit and sinusoidal voltage generation circuit; MCU is connected with deviational survey integrated circuit, 485 bus driving circuits, sinusoidal voltage generation circuit respectively, the base area bottom offset is measured the instruction that centralized processor transmits from 485 buses, MCU is to link with the sinusoidal voltage metering circuit through an end of electronic analog swtich control coil, also be connected with sinusoidal voltage generation circuit, the sinusoidal voltage metering circuit also is connected with MCU through the A/D change-over circuit;
Described underground displacement measurement centralized processor: comprise another MCU, another 485 bus driving circuits and communication module; Another MCU is connected with communication module with another 485 bus driving circuits respectively, and sends steering order by 485 buses to 1~m underground displacement measurement integrated sensor, sends the information of ground bottom offset to a distant place by communication module.
CNA2008101631477A 2008-12-18 2008-12-18 Method and instrument for measuring underground displacement of integrated sensor based on underground displacement Pending CN101435689A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871764A (en) * 2010-06-21 2010-10-27 中国计量学院 Underground geotechnical displacement measurement method and device based on Hall effect
CN102305618A (en) * 2011-05-23 2012-01-04 国网电力科学研究院 Series fixed wireless inclinometer
CN102889876A (en) * 2012-10-16 2013-01-23 杭州国量科技有限公司 Method and device for measuring underground deformation in real time
CN103063122A (en) * 2013-01-04 2013-04-24 中国计量学院 Underground displacement three-dimensional measurement method and device based on Hall effect and magnetoresistive effect
CN104359396A (en) * 2014-12-04 2015-02-18 中国地质调查局水文地质环境地质调查中心 Landslide deep inclination monitoring device and method
CN104406559A (en) * 2014-12-17 2015-03-11 中国地质大学(武汉) Vertical distribution sensor assembly for horizontal displacement of landslide and application method
CN104533395A (en) * 2014-12-30 2015-04-22 晋能集团有限公司 Mining intrinsically safe multi-point displacement meter
CN104655191A (en) * 2015-02-09 2015-05-27 中国地质大学(武汉) Multi-parameter and three-dimensional monitoring method and monitoring probe for reservoir bank of water-level-fluctuating zone
CN104833328A (en) * 2015-04-29 2015-08-12 深圳市北斗云信息技术有限公司 Flexible intelligent inclination measuring rope
CN105006133A (en) * 2015-08-05 2015-10-28 郑州双杰科技有限公司 System and method for acquiring earth surface deformation data
CN105180795A (en) * 2015-10-09 2015-12-23 中国计量学院 Rock and soil mass deformation measurement method and instrument system based on deviation survey and Hall effect
CN112097633A (en) * 2020-09-08 2020-12-18 中国计量大学 Underground three-dimensional displacement measurement system and method based on double-mutual-inductance equivalent voltage

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871764A (en) * 2010-06-21 2010-10-27 中国计量学院 Underground geotechnical displacement measurement method and device based on Hall effect
CN102305618A (en) * 2011-05-23 2012-01-04 国网电力科学研究院 Series fixed wireless inclinometer
CN102889876A (en) * 2012-10-16 2013-01-23 杭州国量科技有限公司 Method and device for measuring underground deformation in real time
CN103063122B (en) * 2013-01-04 2015-05-06 中国计量学院 Underground displacement three-dimensional measurement method and device based on Hall effect and magnetoresistive effect
CN103063122A (en) * 2013-01-04 2013-04-24 中国计量学院 Underground displacement three-dimensional measurement method and device based on Hall effect and magnetoresistive effect
CN104359396A (en) * 2014-12-04 2015-02-18 中国地质调查局水文地质环境地质调查中心 Landslide deep inclination monitoring device and method
CN104406559B (en) * 2014-12-17 2016-03-30 中国地质大学(武汉) A kind of landslide horizontal shift vertical characteristics sensor unit and using method
CN104406559A (en) * 2014-12-17 2015-03-11 中国地质大学(武汉) Vertical distribution sensor assembly for horizontal displacement of landslide and application method
CN104533395A (en) * 2014-12-30 2015-04-22 晋能集团有限公司 Mining intrinsically safe multi-point displacement meter
CN104533395B (en) * 2014-12-30 2017-09-29 晋能集团有限公司 A kind of mining intrinsic safety type multipoint displacement meter
CN104655191A (en) * 2015-02-09 2015-05-27 中国地质大学(武汉) Multi-parameter and three-dimensional monitoring method and monitoring probe for reservoir bank of water-level-fluctuating zone
CN104833328A (en) * 2015-04-29 2015-08-12 深圳市北斗云信息技术有限公司 Flexible intelligent inclination measuring rope
CN105006133A (en) * 2015-08-05 2015-10-28 郑州双杰科技有限公司 System and method for acquiring earth surface deformation data
CN105180795A (en) * 2015-10-09 2015-12-23 中国计量学院 Rock and soil mass deformation measurement method and instrument system based on deviation survey and Hall effect
CN112097633A (en) * 2020-09-08 2020-12-18 中国计量大学 Underground three-dimensional displacement measurement system and method based on double-mutual-inductance equivalent voltage
WO2022053073A1 (en) * 2020-09-08 2022-03-17 中国计量大学 Underground three-dimensional displacement measurement system and method based on double mutual inductance equivalent voltage

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