CN201535671U - Digital cathetometer - Google Patents

Digital cathetometer Download PDF

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Publication number
CN201535671U
CN201535671U CN2009200628462U CN200920062846U CN201535671U CN 201535671 U CN201535671 U CN 201535671U CN 2009200628462 U CN2009200628462 U CN 2009200628462U CN 200920062846 U CN200920062846 U CN 200920062846U CN 201535671 U CN201535671 U CN 201535671U
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CN
China
Prior art keywords
rotating disc
horizontal
horizontal rotating
telescope
function unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009200628462U
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Chinese (zh)
Inventor
曾思齐
鄢前飞
佘济云
赵坤
汤腾方
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Central South University of Forestry and Technology
Original Assignee
Central South University of Forestry and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Central South University of Forestry and Technology filed Critical Central South University of Forestry and Technology
Priority to CN2009200628462U priority Critical patent/CN201535671U/en
Application granted granted Critical
Publication of CN201535671U publication Critical patent/CN201535671U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a digital cathetometer, which comprises an optical aiming assembly, a horizontal turnplate, a display screen, an electric control function unit, an external control part and a tripod assembly; the optical aiming assembly, which is arranged on the horizontal turnplate through an articulated supporting part, comprises a telescope and an inclination angle sensor mounted on the telescope; the horizontal turnplate is mounted on the tripod assembly, the display screen and the external control part are arranged on the horizontal turnplate, and an angular displacement sensor and the electric control function unit are mounted on the rotation axis of the horizontal turnplate in the horizontal turnplate; and the external control part is provided with function keys and a data communication interface. Since the digital cathetometer adopts a linkage mode in which the rotation angle of the horizontal turnplate and the rotation angle of the angular displacement sensor are synchronized and the rotation angle of the telescope and the rotation angle of the inclination angle sensor are synchronized, the digital cathetometer can quickly, accurately and instantly measure the altitude difference, the horizontal distance and the slope between two points.

Description

Digital vertical survey instrument
Technical field
The utility model belongs to surveying instrument, is specifically related in the forestry exploration the both energy measurement point-to-point transmission discrepancy in elevation, simultaneously a kind of digital vertical survey instrument of the energy measurement point-to-point transmission horizontal range and the gradient again.
Background technology
For the forestry exploration, forest road measurement, forest land topographical surveying and the ground point measurement of higher degree etc. often will be measured the point-to-point transmission discrepancy in elevation earlier.Advanced total powerstation is seldom used in vertical survey in forestry practical application at present, automatic compensated level, electronic level and precision level, its reason mainly is that the forest environment crown canopy is dense, high slope, mountain is steep, irritating thick grass gives birth to, before in measuring process, needing only object observing some branch leaves and shrubbery shelter are arranged slightly, advanced instruments such as total powerstation can't be measured, to remove shelter, to require great effort very much, take a lot of work, time-consuming, add that this quasi-instrument costs an arm and a leg and carries multiple reasons such as inconvenience, cause advanced instrument in the Forestry Engineering survey and design, to be difficult to bring into play its due effect, popularized and promote.At present, surveying the discrepancy in elevation in the forestry still finishes with common spirit-leveling instrument hydrous water object staff, equally, if assorted shrubbery gives birth in sylvan life, it is then very difficult to utilize the horizontal line of sight of spirit-leveling instrument to read the preceding chi reading and the backsight of levelling pole, most time will be changed a large amount of time and remove to clear up the assorted thing of irritating, again because the most important and the most basic condition of operation of spirit-leveling instrument is the sight line level, the check of spirit-leveling instrument and correction, eliminate parallax, accurately leveling, job requirements such as pin-point reading are careful conscientious, and this work generally needs skilled professional survey crew just can finish, however, the specialty survey crew is at the naked eyes reading, registrar's numeration, make mistakes unavoidably in loaded down with trivial details many processes such as interior industry arrangement, in addition, the measurement function of spirit-leveling instrument is single, in actual measurement, not only will measure the elevation of point-to-point transmission, also will measure the horizontal range and the gradient of point-to-point transmission, and horizontal range is measured at present still at the use tape measure, if landform is very steep, tape measure can only the deviational survey distance, surveys the gradient then and carries out the gradient again and correct, and this quite bothers.Therefore, owing to the unicity of the measurement function of spirit-leveling instrument and the reasons such as limitation of preciseness in the measuring process and measuring condition, precision is difficult to guarantee and the common inefficiency of whole surveying work sometimes in the Forestry Engineering exploration at present.
The utility model content
The purpose of this utility model is to provide a kind of digital statoscope that can measure the point-to-point transmission discrepancy in elevation, horizontal range and the gradient.This instrument has simple in structure, precision height, efficient height, advantages of simple operation.
The purpose of this utility model is achieved in that digital statoscope comprises optical laying assembly, horizontal rotating disc, display screen, electric control function unit, external control component and A-frame assembly; The optical laying assembly is placed on the horizontal rotating disc by hinged support component, and the optical laying assembly comprises telescope and the obliquity sensor that is installed on the telescope; Horizontal rotating disc is installed on the A-frame assembly, and horizontal rotating disc is provided with display screen and external control component, and inside is provided with angular displacement sensor, the electric control function unit that is installed on the horizontal rotating disc axis of rotation; External control component is provided with function button and data communication interface; The electric control function unit comprises power module, also comprises central controller, the obliquity sensor that is electrically connected with central controller, angular displacement sensor, amplifier, storer and data communication interface by power module power supply; Function button in display screen and the external control component is electrically connected with the electric control function unit.
The utility model is an established angle displacement transducer on the horizontal rotating disc axis of rotation, the horizontal rotating disc anglec of rotation and synchronously consistent interlock mode and the telescope anglec of rotation and the consistent synchronously interlock mode of the obliquity sensor anglec of rotation of the angular displacement sensor anglec of rotation have been adopted, can measure the point to point discrepancy in elevation, horizontal range and the gradient rapidly and accurately immediately.The discrepancy in elevation, the high-precision digital amount of reading of the horizontal range and the gradient, measuring modernization for forestry exploration investigation provides hi-tech to measure equipment.
The utility model also has following characteristics:
1, different with the spirit-leveling instrument method, need not the forward sight backsight at rod reading, it is smart flat also to need not sight line level and instrument.
2, only need respectively to survey on the scale of front and back the inclination angle of two markings, four inclination angles can show 2 discrepancy in elevation automatically, get the flat distance of WAWQ and the gradient simultaneously.
3, before and after instrument can place on the line at two measuring point stations, also can be not on its line, very flexible.
4, survey the discrepancy in elevation at 4.Two monumented points do not have precedence on surveyors' staff on the same direction.
5, the utility model employing is that angular displacement sensor combines with obliquity sensor, cost of development is low, structure is small and exquisite, easy to carry, show through the substantive test assay, thick measurement data at ordinary times of instrument and instrument essence measurement data difference at ordinary times are very small, therefore, instrument need not to adopt twin shaft sensor or bubble precisely than square formula, instrument only needs thick flat the getting final product of naked eyes, undoubtedly, requiring in measuring accuracy is not that instrument has greatly improved measures work efficiency and the adaptability in complicated forest environment under the very high situation.
6, the utility model measuring point is fast, reading fast, information digitalization shows and storage.The utility model is through on probation, and the efficient of measuring the discrepancy in elevation is 16 times of spirit-leveling instrument, and measuring error has obtained good effect ± 0.3%.
Description of drawings
Be further described below in conjunction with accompanying drawing and example, but the utility model is not limited to shown in this figure.
Fig. 1 is the utility model one-piece construction synoptic diagram;
Fig. 2 is the utility model horizontal rotating disc external structure synoptic diagram;
Fig. 3 is the utility model horizontal rotating disc inner structure synoptic diagram;
Fig. 4 is the utility model ECU (Electrical Control Unit) functional block diagram.
Fig. 5, Fig. 6 are the utility model fundamental diagrams.
Embodiment
As Fig. 1-shown in Figure 4, the utility model comprises optical laying assembly, horizontal rotating disc 1, display screen 4, electric control function unit 2, external control component and A-frame assembly; The optical laying assembly is installed on above the horizontal rotating disc 1 by hinged bracing frame 9, and the optical laying assembly comprises telescope 3 and the obliquity sensor 5 that is installed on the telescope 3; Horizontal rotating disc 1 is installed on the A-frame assembly, display screen 4 and external control component are installed above the horizontal rotating disc 1, inside is provided with angular displacement sensor 24, electric control function unit 2, and the rotation axis of angular displacement sensor 24 is fixed on the centre rotational axis 22 of horizontal rotating disc 1 inside; External control component is provided with that data query is strong 16, storage is strong 20, delete key 21, measure a mode selecting key 18, measure function buttons such as two modes options button 19, reading brake key 17 and power switch 10, and is provided with data communication interface 11; Electric control function unit 2 comprises power module 23, also comprises central controller 25, the obliquity sensor 5 that is electrically connected with central controller 25, angular displacement sensor 24, amplifier 26, storer 27 and data communication interface 11 by power module 23 power supply; Function button in display screen 4 and the external control component is electrically connected with electric control function unit 2.
Described optical laying assembly is provided with telescope 3, bracing frame 9, clamp screw 7, final motion screw 31, obliquity sensor casing 6, telescope 3 includes focusing screw 29, eyepiece 28 and object lens 30, be provided with obliquity sensor 5 in the obliquity sensor casing 6, obliquity sensor casing 6 is installed on the telescope 3, obliquity sensor 5 on the installed surface of obliquity sensor casing 6 with telescope 3 to look axis 8 parallel, obliquity sensor 5 also electrically connects with the electric control function unit 2 of horizontal rotating disc 1 inside.The optical laying assembly can be made left and right horizontal with horizontal rotating disc on the whole and rotate synchronously, and also can do to rotate up and down at vertical plane by the stationary shaft 33 hinged with it on bracing frame 9.
Described horizontal rotating disc 1 bottom is provided with level braking spiral 12, rotation central axis 13 and WidFin spiral 32, and horizontal rotating disc 1 links to each other with A-frame package base 14 by rotation central axis 13, and the A-frame assembly comprises pedestal 14 and tripod 15.
Data query key 16 in the described external control component, measure a mode selecting key 18, measure two modes options button 19, storage is strong 20, delete key 21, power switch 10, data communication interface 11 and reading brake key 17 interrelate, switch mutually.
Power module 23 provides working power for each functional part of electric control function unit in the described electric control function unit 2; Obliquity sensor 5 is imported angle signals by reading brake key 17 to central controller 25 with angular displacement sensor 24, after central controller 25 calls the dedicated computing sequential operation, result of calculation delivered to storer Unit 27 and amplifier 26 and drives screen show screen 4, central controller 25 by and be provided with the output of data communication interface 11 control datas.
Method of work of the present utility model:
As Fig. 5 and shown in Figure 6, the discrepancy in elevation h that survey the topography A point and B are ordered,
It comprises the following steps: successively
(1), the instrument setting between A and B, a selected arbitrarily observation station 0.
(2), A landform and B landform erect respectively the long scale of a 3m (perhaps scale after A point has been surveyed, after move on to the B point), two observation monumented points are arranged on the scale, overhead 0.7 meter monumented point is basic high H 0.7, 3 meters monumented points are fixing high H 3
(3), at first A topographic staff two monumented points are observed the high point of Fundamentals of Measurement H at the O point 0.7, fixing high some H 3The sight line inclination angle [theta] A0.7, θ A3
(4) at the O point B topographic staff two monumented points are observed the high point of Fundamentals of Measurement H then 0.7, fixing high some H 3The sight line inclination angle [theta] B0.7, θ B3
(5), the horizontal range of establishing A and O point-to-point transmission is S AO, the horizontal range of B and O point-to-point transmission is S BO,
According to the trigonometric function principle:
High and the fixing high separation delta H=H in basis on the scale Gu-H Base=3-0.7=2.3=S AO(tg θ A3-tg θ A0.7)=S BO(tg θ B3-tg θ B0.7),
So, horizontal range S AO=Δ H/ (tg θ Gu-tg θ Base)=2.3/ (tg θ A3-tg θ A0.7);
Horizontal range S BO=Δ H/ (tg θ Gu-tg θ Base)=2.3/ (tg θ B3-tg θ B0.7),
If the discrepancy in elevation that A point and B point are two is h, discrepancy in elevation h is actually the high height value on horizontal line of fixedly height or basis poor of same scale, is example for fixing high 3 meters with scale, and is vertically high in S on horizontal line at the fixing high 3 meters sign of A point AO* tg θ A3, same, vertical high on horizontal line at the fixing high 3 meters sign of B point in S BO* tg θ B3, therefore, the discrepancy in elevation (digital-to-analogue) h=S AO* tg θ A3-S BO* tg θ B3=2.3[tg θ A3/ (tg θ A3-tg θ A0.7)-tg θ B3/ (tg θ B3-tg B θ .7)], in like manner: h=S AO* tg θ A0.7-S BO* tg θ B0.7=2.3[tg θ A0.7/ (tg θ A3-tg θ A0.7)-tg θ B0.7/ (tg θ B3-tg θ B0.7)].
(6) establish again two of A point and B points between horizontal range be S AB, the drift angle that 3 horizontal projections of ABO constitute plane triangle is ∠ O, according to the cosine law: then have SAO 2 - 2 SAO × SBO × COS ∠ O + SBO 2
And horizontal range S AO=Δ H/ (tg θ Gu-tg θ Base)=2.3/ (tg θ A3-tg θ A0.7);
Horizontal range S BO=Δ H/ (tg θ Gu-tg θ Base)=2.3/ (tg θ B3-tg θ B0.7), only need measure angle ∠ O, just can measure the point-to-point transmission horizontal range is S AB, also just can draw the point-to-point transmission mean inclination promptly
Mean inclination P=arctg (h/S AB).
In the formula all elevations angle be on the occasion of, the angle of depression is a negative value, formula has versatility.
This shows, need only the obliquity sensor of installing by instrument and measure the horizontal sextant angle that the angular displacement sensor of four inclination angle values and instrument installation is measured point-to-point transmission, can draw 2 discrepancy in elevation data, horizontal range and discrepancy in elevation data between landform.
The course of work of the present utility model:
During measurement, settle and the good instrument of leveling between two impact points, power switch 10 is opened, the utility model enters duty.Electric control function unit 2 sends the reading order and point out out signal on display screen 4 to obliquity sensor 5 and angular displacement sensor 24, next the first step is selected different measurement patterns promptly to select to measure a mode selecting key 18 or is measured two modes options button 19, then forward sight scale two identification points are aimed at successively, open reading brake key 17 successively, electric control function unit 2 reads the angle signal of obliquity sensor 5 and angular displacement sensor 24 successively, according to backsight scale two identification points are done same operation, after four identification point measurements finish, electric control function unit 2 calls the program module of corresponding digital-to-analogue pattern and calculates, obtain current discrepancy in elevation data, horizontal range and discrepancy in elevation data output to display screen 4 and show.And can multidataly store simultaneously, and can easily measurement data be outputed to and carry out data processing and utilization in the outer computer.

Claims (5)

1. a digital vertical survey instrument comprises optical laying assembly, horizontal rotating disc, display screen, electric control function unit, external control component and A-frame assembly; It is characterized in that: the optical laying assembly is placed on the horizontal rotating disc by hinged support component, and the optical laying assembly comprises telescope and the obliquity sensor that is installed on the telescope; Horizontal rotating disc is installed on the A-frame assembly, and horizontal rotating disc is provided with display screen and external control component, and inside is provided with angular displacement sensor, the electric control function unit that is installed on the horizontal rotating disc axis of rotation; External control component is provided with function button and data communication interface; The electric control function unit comprises power module, also comprises central controller, the obliquity sensor that is electrically connected with central controller, angular displacement sensor, amplifier, storer and data communication interface by power module power supply; Function button in display screen and the external control component is electrically connected with the electric control function unit.
2. digital vertical survey instrument as claimed in claim 1 is characterized in that: described obliquity sensor is located in the obliquity sensor casing that is installed on the telescope, and on the installed surface of obliquity sensor casing with telescopical to look the axis parallel.
3. digital vertical survey instrument as claimed in claim 1 is characterized in that: described horizontal rotating disc bottom is provided with the level braking spiral, rotation central axis and WidFin spiral, and horizontal rotating disc links to each other with the A-frame package base by rotation central axis.
4. digital vertical survey instrument as claimed in claim 1, it is characterized in that: the rotation axis of described angular displacement sensor is fixed on the centre rotational axis of horizontal rotating disc inside.
5. digital vertical survey instrument as claimed in claim 1 is characterized in that: described function button comprises that data query is strong, storage is strong, delete key, measurement pattern options button, reading brake key and power switch.
CN2009200628462U 2009-01-08 2009-01-08 Digital cathetometer Expired - Fee Related CN201535671U (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101907458A (en) * 2010-08-18 2010-12-08 陈连宇 Simple height indicator
CN102914437A (en) * 2012-10-29 2013-02-06 浙江大学 Vehicle road test brake performance detection system based on laser ranging
CN104061900A (en) * 2014-06-27 2014-09-24 广州市科创电脑技术开发有限公司 Intelligent rotary plotting system and method
CN105222737A (en) * 2015-09-30 2016-01-06 国网山东省电力公司淄博供电公司 Transmission line of electricity bow line sag measuring method
CN106679618A (en) * 2016-11-01 2017-05-17 水利部交通运输部国家能源局南京水利科学研究院 Remote multifunctional monitoring system for architectural structure and monitoring method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101907458A (en) * 2010-08-18 2010-12-08 陈连宇 Simple height indicator
CN102914437A (en) * 2012-10-29 2013-02-06 浙江大学 Vehicle road test brake performance detection system based on laser ranging
CN104061900A (en) * 2014-06-27 2014-09-24 广州市科创电脑技术开发有限公司 Intelligent rotary plotting system and method
CN105222737A (en) * 2015-09-30 2016-01-06 国网山东省电力公司淄博供电公司 Transmission line of electricity bow line sag measuring method
CN105222737B (en) * 2015-09-30 2018-02-13 国网山东省电力公司淄博供电公司 Transmission line of electricity bow line sag measuring method
CN106679618A (en) * 2016-11-01 2017-05-17 水利部交通运输部国家能源局南京水利科学研究院 Remote multifunctional monitoring system for architectural structure and monitoring method
CN106679618B (en) * 2016-11-01 2019-06-11 水利部交通运输部国家能源局南京水利科学研究院 Building structure remote multifunctional monitors system and monitoring method

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20100728

Termination date: 20130108