CN103162613B - PDA tunnel convergence measurement system - Google Patents
PDA tunnel convergence measurement system Download PDFInfo
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- CN103162613B CN103162613B CN201310089127.0A CN201310089127A CN103162613B CN 103162613 B CN103162613 B CN 103162613B CN 201310089127 A CN201310089127 A CN 201310089127A CN 103162613 B CN103162613 B CN 103162613B
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Abstract
The present invention discloses a kind of PDA tunnel convergence measurement system, be made up of tape convergence gauge, PDA and acquisition software, feature is: this convergence gauge body is that full-closed structure does not establish reading window and tension force indicating window, in-built radio receiving transmitting module, capacitor grid transducer, temperature sensor, photoelectric sensor and the single chip control module connected with external antenna; For duplex wireless is connected between PDA with convergence gauge, be survey to read terminal and automatically complete convergence gauge data acquisition, record, computing and transmission with PDA during measurement; Convergence gauge tape tensile loads realizes automatic accurate controlled loading by photoelectric sensor; Eliminate reading window and the tension force indicating window of existing convergence gauge, the process that measures is by the LED signal lamp instruction operator on convergence gauge.The invention solves existing convergence gauge manual control and load inaccurate, the inconvenient defect that can not be connected with computing machine with data of manual record, convergence gauge metrology operation can be made to realize no record, artificial Blind Test and prompt operation.
Description
Technical field
The present invention relates to tunnel testing tool, to be Specifically a kind of with wireless PDA be survey read terminal, steel ruler tension force loads the tunnel convergence deformation measurement system based on tape convergence gauge automatically controlled.
Technical background
Existing tape convergence gauge is all survey read by being loaded on dial gauge on convergence gauge or capacitive grid numeral display table, to be then recorded on tabulating paper and to calculate mean value, increment and accumulated value in time at the scene.This is generally arrange two people to have come in tunnel deformation metrology operation, is respectively operator and keeper.The control of convergence gauge steel ruler tension force is then realized by the visual pointer of operator or groove.Said process need carry paper, pen, torch and counter, easily occur misreading, misremember, miscalculate and load inaccurate situation, especially in dim light, the earsplitting tunnel construction environment of jackdrill sound, and the occasion of ladder measurement is taken at the higher needs of convergence baseline setting height(from bottom).Interior industry also needs the data be recorded on tabulating paper manually to input computing machine and carries out reprocessing (returning calculating, formation curve etc.), when data volume is larger, this process is more loaded down with trivial details and easily make mistakes.In a word, existing convergence gauge, from field operation to interior industry, mainly to complete metrology operation when artificial participation to the acquisition of data and process, has and load inaccurate, the inconvenient defect that can not be connected with computing machine with data of manual record.
Summary of the invention
The object of the invention is to: reduce the artificial participation link in convergence gauge metrology operation as far as possible, solve the defect that existing convergence gauge manual control loads the inconvenience of inaccurate and manual record, data can not be connected with computing machine, provide the automatic accurate controlled loading of a kind of energy, data automatic recording and transmission, artificial Blind Test can be realized, without the need to recording and the tunnel convergence measurement system of prompt operation.
Reaching object of the present invention, is utilize wireless PDA technology and photoelectric control principle, is realized by enforcement following technical proposals:
A kind of PDA tunnel convergence measurement system, surveyed by tape convergence gauge, PDA and read terminal and be loaded on the acquisition software that this survey reads terminal to form, wherein, tape convergence gauge comprises: the convergence gauge body being loaded on convergence gauge front portion, the convergence gauge lever being loaded on convergence gauge rear portion and the steel ruler frame be loaded between convergence gauge body rear end and convergence gauge lever front end and the steel ruler be loaded on steel ruler frame; Described convergence gauge body comprise be contained in front end head, be loaded in convergence gauge casing the convergence gauge movement be connected with head and the convergence gauge tension force rocking handle stretched out outside casing; Described convergence gauge movement comprises the head expansion link be connected with head, the self locking rocking headle tension force loading system be connected with head expansion link and tension force rocking handle respectively, it is characterized in that: described convergence gauge body is that full-closed structure does not establish reading window and tension force indicating window, built with the radio receiving transmitting module connected with external antenna, the capacitor grid transducer be connected with head, temperature sensor, the photoelectric sensor, the single chip control module controlling photoelectric sensor and the centrally connected power source that are connected with self locking rocking headle tension force loading system with capacitor grid transducer respectively; Convergence gauge and PDA survey and read between terminal as duplex wireless is connected; Casing is equipped with the LED signal lamp be connected with single chip control module; Described PDA survey is read terminal and is made up of radio receiving transmitting module, touch screen MID and acquisition software.
Attached technical characteristic is:
Self locking rocking headle tension force loading system in described convergence gauge movement, essential core parts fill by three the groove Inner that have be connected with head expansion link and tension force rocking handle respectively the loading system worm screw being engaged steel ball, and the tension force loading system spring be loaded on loading system worm screw and spring base formed, this tension force loading system, by the loading system main member mariages six rib leading screw of original tunnel convergence meter ZL99115008.2, be improved to the worm screw with three grooves, being engaged of six rib holes of its original design and faceted pebble is improved to being engaged of steel ball and worm screw groove.
Photoelectric sensor in described convergence gauge body, adopts the low-power consumption slot type optoelectronic switch be arranged on convergence gauge movement; On tension force loading spring seat in self-locking tension force loading system, an anti-dazzling screen by optoelectronic switch notch is set; The delivery outlet of optoelectronic switch and the Electricity Federation, input port of capacitor grid transducer, when tension force loading spring seat puts in place, photoelectric sensor sends signal to single chip control module, is locked respectively and launch now capacitor grid transducer data by single chip control module and radio receiving transmitting module.
Centrally connected power source in described convergence gauge casing and capacitor grid transducer, temperature sensor, radio receiving transmitting module, photoelectric sensor, single chip control module is connected with LED signal lamp circuit.
Described PDA surveys and reads terminal, selects the touch screen MID based on ARM framework, in-built radio receiving transmitting module and acquisition software.
Described tape convergence gauge and PDA survey the duplex wireless read between terminal and are connected, and refer to survey the radio receiving transmitting module read in terminal and realize duplex wireless by being embedded in convergence gauge and PDA and be connected.
The zero setting of described convergence gauge surveys by PDA the acquisition software read in terminal to have come.
Described acquisition software comprises program execution files, data file and operation manual, wherein data file comprises: tunnel information file, measurement parameters file and metric data file, described tunnel information file be user set up survey, just surveying and tunnel information to be measured, comprise circuit and tunnel title, construction, construction and monitoring unit, starting date, generated by artificial input data; Described measurement parameters file is every concrete measurement parameters in tunnel, comprises section and baseline numbering, buries mileage, steel ruler length underground and bury the date underground, generated by tunnel information table data and artificial input data; Described metric data file is the metric data of concrete baseline on above-mentioned tunnel measuring section, comprise and measure the data such as date and time, temperature, three readings, mean value, increment and accumulated value containing temperature adjustmemt, tense curve can be generated, by measurement parameters file data and the transmitting data generation receiving convergence gauge.
The execution flow process of described acquisition software is from tunnel information file, click executive routine unlatching software and namely enter tunnel information table, select to enter concrete tunnel measurement parameters table by tunnel in table, then concrete section and baseline is selected to enter the metric data table of this baseline, can carry out consulting data or starting sampling metrology operation, meanwhile, in described tunnel information table and measurement parameters table, all zero setting can be carried out to convergence gauge.
Described PDA tunnel convergence method for measurement, carries out in the steps below:
The first step: survey at PDA and read selected baseline to be measured in terminal and start sampling metrology operation, rotating tension rocking handle moves head and loads to steel ruler, head displacement data is obtained by capacitor grid transducer simultaneously, steel ruler temperature data is obtained by temperature sensor, and above-mentioned data read terminal by radio receiving transmitting module real time emission to PDA survey;
Second step: whether photoelectric sensor judges that steel ruler loads and put in place, once after putting in place by single chip control module send instruction by radio receiving transmitting module be transmitted to PDA survey read terminal, start convergence gauge LED signal lamp, instruction operator loads and puts in place simultaneously, and now operator can stop loading;
3rd step: PDA survey read terminal receive instruction namely record this moment gathered head displacement data and send the sound prompting, link order is to the single chip control module of convergence gauge simultaneously, start this reading of LED signal lamp instruction operator to complete, now operator can return rocking handle preparation second time and load reading;
4th step: so repeated above three surveys and read, PDA survey is read terminal and is calculated mean value, increment and the accumulated value containing temperature adjustmemt and preserve, then link order to convergence gauge single chip control module and send the sound prompting, convergence gauge single chip control module receives instruction, start LED signal lamp instruction operator three readings complete and calculate preservation, stop sampling, so far a carried out metrology operation (comprise three times and survey read procedure) terminates simultaneously.
Outstanding advantages of the present invention is: native system convergence gauge does not have reading window and steel ruler tension force indicating window, in tunnel, measurement no longer needs artificial reading, paper notes record and calculating, no longer need to stare at convergence gauge and judge whether the loading of steel ruler tension force puts in place, only need PDA survey read selected baseline to be measured in terminal and start measure after PDA can be surveyed and read terminal and to insert in pocket (need not stare at PDA survey read terminal screen), look is shown by means of only the LED signal lamp on convergence gauge, metrology operation can be completed, whole measurement process, need not to throw light on cooperation, controlled loading, read data and record operation and all automatically complete, no longer need artificial participation, greatly reduce the artificial participation link in convergence gauge metrology operation, the metrology operation of convergence gauge is made to achieve no record, artificial Blind Test and prompt operation, the invention solves existing convergence gauge manual control loads inaccurate, manual record inconvenience, the defect that data can not be connected with computing machine, for user provides the automatic accurate controlled loading of a kind of energy, data automatic recording and transmission, can manually Blind Test, without the need to record and the PDA tunnel convergence measurement system of prompt operation.
Accompanying drawing explanation
Fig. 1 is electrical system overall design block diagram of the present invention;
Fig. 2 is System's composition figure of the present invention, and wherein 2-A is its convergence gauge, and 2-B is that the PDA matched with convergence gauge 2-A surveys and reads terminal;
Fig. 3 is the present invention does not have electroplax module, loading system convergence gauge elevational perspective view containing the perspective of lever;
Fig. 4 is the convergence gauge birds-eye perspective that the present invention does not contain lever, the perspective of electroplax module has the self locking rocking headle tension force loading system embedding photoelectric sensor;
Fig. 5 is the convergence gauge self locking rocking headle tension force loading system that the present invention is loaded on movement;
Fig. 6 is worm screw and the steel ball occlusion schematic diagram of convergence gauge self locking rocking headle tension force loading system of the present invention;
Fig. 7 is that acquisition software of the present invention forms block diagram;
Fig. 8 is that acquisition software of the present invention performs FB(flow block);
Fig. 9 is the tunnel information table at acquisition software interface of the present invention;
Figure 10 is the measurement parameters table at acquisition software interface of the present invention;
Figure 11 is the survey tables of data at acquisition software interface of the present invention;
Figure 12 is ZL99115008.2 tension force loading system structure cut-open view.
Reference numeral: 1 is convergence gauge tension force rocking handle; 2 is convergence gauge head; 3 is convergence gauge steel ruler; 4 is capacitor grid transducer; 5 is convergence gauge temperature sensor; 6 is radio receiving transmitting module (embedding convergence gauge and PDA survey and read terminal respectively); 7 is photoelectric sensor; 8 is single chip control module; 9 is three-color LED signal lamp; 10 is convergence gauge movement; 11 is convergence gauge body (containing casing); 12 is convergence gauge lever; 13 is convergence gauge self locking rocking headle tension force loading system; 14 is convergence gauge external antenna; 15 is convergence gauge centrally connected power source; 16 is convergence gauge power switch; 17 is convergence gauge power source charges mouth; 18 is convergence gauge tension force loading system worm screw; 19 is worm screw occlusion steel ball; 20 is convergence gauge head expansion link; 21 is convergence gauge tension force loading system spring base; 22 is tension force crank shaft; 23 is bevel reduction gear set, and wherein 23A is driving wheel, and 23B is engaged wheel; 24 is the anti-dazzling screen of photoelectric sensor; 25 for PDA software carrying out the zero setting key of zero setting to convergence gauge; 26 for newly starting key (creating new entry) in PDA software tunnel information table and measurement parameters table; 27 for PDA software starting the measurement key of sampling; 28 for PDA software generates tense curve graph key.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
As shown in figures 1 to 6, a kind of PDA tunnel convergence measurement system, is surveyed by tape convergence gauge 2-A, PDA and reads terminal 2-B and be loaded on the acquisition software that this survey reads terminal 2-B to form; Wherein PDA survey read terminal 2-B adopt 5 inch styles of writing screen MID, convergence gauge 2-A and PDA survey the wireless transmission distances read between terminal 2-B be 10m.Specific as follows:
Tape convergence gauge 2-A is the regeneration product of tunnel convergence meter ZL99115008.2, eliminates its reading window and tension force indicating window, and body is totally-enclosed cylindrical structure.Tape convergence gauge 2-A is overall by being loaded on the convergence gauge body 11 of convergence gauge front portion, the convergence gauge lever 12 being loaded on rear portion and the steel ruler frame be loaded between convergence gauge body 11 rear end and convergence gauge lever 12 front end and the steel ruler 3 be loaded on steel ruler frame formed.
Described convergence gauge body 11 comprise be loaded on front end head 2, be loaded in this convergence gauge casing the movement 10 be connected with head 2 and the convergence gauge tension force rocking handle 1 stretched out outside casing.
Described convergence gauge movement 10 comprises the head expansion link 20 be connected with head 2, the self locking rocking headle tension force loading system 13 be connected with head expansion link 20 and tension force rocking handle 1 respectively.
This self locking rocking headle tension force loading system 13, the tunnel convergence meter ZL99115008.2 tension force loading system of such as Figure 12 is improved: change original mariages six rib leading screw into worm screw 18 with three grooves, change being engaged of original six rib holes and faceted pebble into steel ball 19 and worm screw 18 groove be engaged, this improvement substantially reduces loading resistance, makes loading more smooth and easy and accurate.Thus make three the groove Inner that have be connected with head expansion link 20 and tension force rocking handle 1 respectively fill the loading system worm screw 18 being engaged steel ball 19, and dress tension force loading spring thereon and spring base 21, become the core component of self locking rocking headle tension force loading system 13 in convergence gauge movement 10.
At convergence gauge 2-A casing built with the radio receiving transmitting module 6 that connects with external antenna 14, the capacitor grid transducer 4 be connected with head 2, temperature sensor 5, the photoelectric sensor 7 be connected with self locking rocking headle tension force loading system 13 with capacitor grid transducer 4 respectively, control the single chip control module 8 of photoelectric sensor 7, and convergence gauge centrally connected power source 15; Capacitor grid transducer 4 in convergence gauge 2-A casing and temperature sensor 5, surveyed by single chip control module 8, radio receiving transmitting module 6 and external antenna 14 thereof and the PDA being embedded with radio receiving transmitting module and read terminal 2-B and realize duplex wireless and be connected, photoelectric sensor 7 in casing, adopts the low-power consumption slot type optoelectronic switch be located on convergence gauge 2-A movement 10; On tension force loading spring seat 21 in self-locking tension force loading system 13, arrange one by the anti-dazzling screen 24 of optoelectronic switch notch; The delivery outlet of optoelectronic switch and the Electricity Federation, input port of capacitor grid transducer 4, when tension force loading spring seat 21 puts in place, photoelectric sensor 7 sends signal to single chip control module 8, is locked respectively and launch now capacitor grid transducer 4 data by single chip control module 8 and radio receiving transmitting module 6.Convergence gauge 2-A casing is also equipped with the three-color LED signal lamp 9 be connected with single chip control module in casing 8.
Centrally connected power source 15 in described convergence gauge 2-A casing is Li-Ion rechargeable battery, for powering for capacitor grid transducer 4, temperature sensor 5, radio receiving transmitting module 6, photoelectric sensor 7, single chip control module 8 and LED signal lamp 9.
LED signal lamp 9 on convergence gauge 2-A casing, it shows that look is designed to: red Chang Liang---electric power starting, voltage are sufficient; Blue flicker---low-voltage alarm; Red flicker---steel ruler loads and puts in place; It is green that Chang Liang---this reading completes; Green flicker---three readings complete, calculated value (mean value, increment, accumulated value) is saved.
Described PDA surveys and reads terminal 2-B, adopts the touch screen MID based on ARM framework, in-built radio receiving transmitting module 6 and acquisition software.
Native system starts sampling and measures operating type: survey at PDA and read terminal 2-B carries out, and is started by the measurement key 27 clicked on metric data table as shown in figure 11.After sampling starts, head 2 displacement data real time emission is surveyed to PDA and is read terminal 2-B by convergence gauge 2-A.
Survey at convergence gauge 2-A and PDA and read between terminal 2-B, to set up the wireless duplex connection that transmission range is 10m, realize automatic data collection, record, computing (comprising the mean value of temperature adjustmemt, increment, accumulated value and formation curve figure), and be connected with computer and transmit data.Meanwhile, read terminal 2-B carries out zero setting to convergence gauge 2-A in PDA survey.
Acquisition software of the present invention is made up of three parts, sees Fig. 7: program execution files (.exe), data file (.xls) and operation manual (.doc).Data file comprises tunnel information file, measurement parameters file and metric data file three part.Wherein, tunnel information file be user set up survey, just surveying and tunnel information to be measured (as tunnel title, unit in charge of construction, starting date etc.), generated by artificial input data.Measurement parameters file is the concrete measurement parameters (as section, baseline are numbered, bury mileage, chi length underground, buried the date etc. underground) in every tunnel, is generated by tunnel information file data and artificial input data.Metric data file is the metric data (as measured date, three readings, mean value, increment and accumulated values etc.) of concrete baseline on above-mentioned tunnel measuring section, tense curve can be generated, by measurement parameters file data and the transmitting data generation receiving convergence gauge.
Acquisition software of the present invention performs flow process as shown in Figure 8: after clicking executive routine unlatching software, namely tunnel information table is as shown in Figure 9 entered, click certain sequence number cell in table or newly start key 26, then entering the measurement parameters table as shown in Figure 10 of tunnel corresponding to this sequence number or newly built tunnels data entries; In the measurement parameters table in selected tunnel, click certain sequence number cell or newly start key 26, namely entering the metric data table as shown in figure 11 of section corresponding to this sequence number and baseline or newly-built section and baseline parameter; Can consult in the metric data table of selected baseline and survey data, click and measure the metrology operation that namely key 27 starts this baseline, click graph key 28 and can generate tense curve map.At tunnel information table as shown in Figure 9 with as shown in Figure 10 in measurement parameters table, clicking zero setting key 25 can carry out zero setting to convergence gauge 2-A.
The outstanding advantages of PDA tunnel convergence measurement system of the present invention is: survey at PDA and read selected baseline to be measured on terminal 2-B and PDA can be inserted pocket after starting measurement, do not need to stare at PDA survey and read terminal screen, show that look can complete metrology operation by means of only the LED signal lamp 9 on convergence gauge 2-A, in measurement process, controlled loading, reading data and record operation all automatically complete and no longer need artificial participation, greatly reduce the artificial participation link in convergence gauge metrology operation, make convergence gauge metrology operation realize no record, artificial Blind Test and prompt operation.
Claims (7)
1. a PDA tunnel convergence measurement system, surveyed by tape convergence gauge (2-A), PDA and read terminal (2-B) and be loaded on the acquisition software that this survey reads terminal to form, wherein, tape convergence gauge (2-A) comprising: the body (11) being loaded on convergence gauge front portion, the lever (12) being loaded on convergence gauge rear portion and the steel ruler frame be loaded between body (11) rear end and lever (12) front end and the steel ruler (3) be loaded on steel ruler frame, described convergence gauge body (11) comprise be contained in front end head (2), be loaded in convergence gauge casing the movement (10) be connected with head (2) and the convergence gauge tension force rocking handle (1) stretched out outside casing, convergence gauge movement (10) comprises the head expansion link (20) be connected with head (2), the self locking rocking headle tension force loading system (13) be connected with head expansion link (20) and tension force rocking handle (1) respectively, it is characterized in that: described convergence gauge body (11) does not establish reading window and tension force indicating window for full-closed structure, built with the radio receiving transmitting module (6) connected with external antenna (14), the capacitor grid transducer (4) be connected with head (2), temperature sensor (5), the photoelectric sensor (7) be connected with self locking rocking headle tension force loading system (13) with capacitor grid transducer (4) respectively, control the single chip control module (8) of photoelectric sensor (7), and convergence gauge centrally connected power source (15), described tape convergence gauge (2-A) and PDA survey and read between terminal (2-B) as duplex wireless is connected, convergence gauge casing is equipped with the LED signal lamp (9) be connected with single chip control module (8), described PDA survey is read terminal (2-B) and is made up of radio receiving transmitting module (6), touch screen MID and acquisition software, photoelectric sensor (7) in described convergence gauge casing, adopts the low-power consumption slot type optoelectronic switch be arranged on convergence gauge movement (10), on tension force loading spring seat (21) in described self-locking tension force loading system, an anti-dazzling screen by optoelectronic switch notch (24) is set, the Electricity Federation, input port of the delivery outlet of optoelectronic switch and capacitor grid transducer (4), when tension force loading spring seat (21) puts in place, photoelectric sensor (7) sends signal to single chip control module (8), is locked respectively and launch now capacitor grid transducer (4) data by single chip control module (8) and radio receiving transmitting module (6).
2. by PDA tunnel convergence measurement system according to claim 1, it is characterized in that: the self locking rocking headle tension force loading system (13) in described convergence gauge movement (10), essential core parts fill by three the groove Inner that have be connected with head expansion link (20) and tension force rocking handle (1) respectively the loading system worm screw (18) being engaged steel ball, and the tension force loading spring be loaded on this worm screw and spring base (21) formed.
3., by PDA tunnel convergence measurement system according to claim 1, it is characterized in that: the centrally connected power source (15) in described convergence gauge casing is connected with capacitor grid transducer (4), temperature sensor (5), radio receiving transmitting module (6), photoelectric sensor (7), single chip control module (8) and LED signal lamp (9) circuit.
4. by PDA tunnel convergence measurement system according to claim 1, it is characterized in that: described PDA surveys and reads terminal (2-B), selects the touch screen MID based on ARM framework, in-built radio receiving transmitting module (6) and acquisition software.
5. by PDA tunnel convergence measurement system according to claim 1, it is characterized in that: described tape convergence gauge (2-A) and PDA survey the duplex wireless read between terminal (2-B) and be connected, refer to and survey the radio receiving transmitting module read in terminal (2-B) and realize duplex wireless by being embedded in convergence gauge (2-A) and PDA and be connected.
6. by PDA tunnel convergence measurement system according to claim 1, it is characterized in that: the zero setting of described convergence gauge (2-A) surveys by PDA the acquisition software read in terminal (2-B) to have come.
7. by the PDA tunnel convergence measurement system that one of claim 1-5 is described, it is characterized in that: described in be loaded on PDA and survey and read the acquisition software of terminal (2-B), comprise program execution files, data file and operation manual, data file comprises tunnel information file, measurement parameters file and metric data file, wherein, tunnel information file be set up by user survey, just surveying and tunnel information to be measured, measurement parameters file is every concrete measurement parameters in tunnel, is generated by tunnel information file data and artificial input data, metric data file is the metric data of concrete baseline on above-mentioned tunnel measuring section, tense curve can be generated, by measurement parameters file data and the transmitting data generation receiving convergence gauge, the execution flow process of described acquisition software is from tunnel information file, click executive routine unlatching software and namely enter tunnel information table, select by tunnel the measurement parameters table entering concrete tunnel in table, then concrete section and baseline is selected to enter the metric data table of this baseline, data can be consulted or start metrology operation, wherein: described tunnel information table is the survey that user sets up, just surveying and tunnel information to be measured, comprise circuit and tunnel title, build, construct and monitor unit and starting date, generated by artificial input data, be provided with zero setting key (25) in this table and can carry out zero setting to convergence gauge (2-A), described measurement parameters table is every concrete measurement parameters in tunnel, comprise section and baseline numbering, bury mileage, steel ruler length underground and bury the date underground, generated by tunnel information table data and artificial input data, being also provided with zero setting key (25) in this table can carry out zero setting to convergence gauge (2-A), described metric data table is the metric data of concrete baseline on above-mentioned tunnel measuring section, comprise and measure date and time, temperature, three readings, mean value, increment and accumulated values, by measurement parameters table data and the transmitting data generation receiving convergence gauge, in this table, click measurement key (27) can sampling metrology operation be carried out, click graph key (28) and tense curve map can be generated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310089127.0A CN103162613B (en) | 2013-03-20 | 2013-03-20 | PDA tunnel convergence measurement system |
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| CN201310089127.0A CN103162613B (en) | 2013-03-20 | 2013-03-20 | PDA tunnel convergence measurement system |
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| CN103162613A CN103162613A (en) | 2013-06-19 |
| CN103162613B true CN103162613B (en) | 2015-08-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105066949B (en) * | 2015-09-14 | 2017-05-31 | 四川大学 | Lane space deformation measuring device and the measuring method based on the device |
| CN106643632A (en) * | 2016-12-28 | 2017-05-10 | 山东大学 | Digital display type tunnel convergence gauge for automatically recording and processing data and using method of tunnel convergence gauge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140766C (en) * | 1999-07-13 | 2004-03-03 | 铁道部科学研究院西南分院 | Self locking rocking headle type convergence meter |
| CN2394195Y (en) * | 1999-09-21 | 2000-08-30 | 中国人民解放军89003部队 | Electrc digital shrinking meter |
| KR20060003762A (en) * | 2004-07-07 | 2006-01-11 | 현대자동차주식회사 | Telemetry system for measurement of strain of flywheel rotor |
| CN2826362Y (en) * | 2005-04-25 | 2006-10-11 | 北京中煤矿山工程有限公司 | Stretching force and micrometering full-digital display convergence-meter |
| CN100580679C (en) * | 2007-10-31 | 2010-01-13 | 重庆交通大学 | Civil construction engineering GPS-RTK measurement integrated PDA device |
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