CN206514844U - Electronic level with instrument height real―time precision measurment function - Google Patents
Electronic level with instrument height real―time precision measurment function Download PDFInfo
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- CN206514844U CN206514844U CN201720239677.XU CN201720239677U CN206514844U CN 206514844 U CN206514844 U CN 206514844U CN 201720239677 U CN201720239677 U CN 201720239677U CN 206514844 U CN206514844 U CN 206514844U
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- China
- Prior art keywords
- expansion link
- electronic level
- instrument height
- camera
- time precision
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Abstract
Technical problem to be solved in the utility model is how accurately to measure electronic level instrument height.Electronic level with instrument height real―time precision measurment function, including electronic level, expansion link and camera, expansion link is vertically mounted under the pedestal of electronic level, expansion link is hollow structure, and camera is arranged on the outside of expansion link, is connected between camera and electronic level by wire, there is scale expansion link lower end, and expansion link lower end is substrate and appropriate counterweight.The utility model has the advantages that：Instrument height is read using electronic level images themselves reading function, measurement accuracy is very high and saves great amount of cost；The elevation of electronic level is known, reduces the measurement of higher degree step on the datum mark, and measurement efficiency is double；After electronic level essence is flat, expansion link and two plane exact verticals of pedestal and the earth, secondly expansion link stretch out all the time with ground reference point close contact, and image accuracy of reading is very high, the common guarantee precision of institute's survey instrument elevation.
Description
Technical field
The utility model is related to the measurement of field of measuring technique, especially electronic level instrument height.
Background technology
Spirit level is to set up the instrument that horizontal line of sight determines the ground point-to-point transmission discrepancy in elevation.Principle is to be surveyed according to measurement of the level principle
Measure the discrepancy in elevation between ground point.Critical piece has telescope, pipe spirit level（Or compensator）, vertical axis, pedestal, foot screw.By structure
It is divided into tilting level, automatic compensated level, laser level and electronic level.It is divided into precision level and general by precision
Logical spirit level.
At present, electronic level sight scale and focusing still needs to visual progress.After manual debugging, scale bar code is on the one hand
It is imaged on telescope differentiation plate, for visual observation, on the other hand by the spectroscope of telescope, photoelectric transfer is imaged at again
Sensor（Also known as detector）On, supplied for electronic reading.Because the bar pattern that each producer's scale is encoded is different, therefore bar code mark
Chi is typically unable to intercommunication and used.When being measured using traditional levelling staff, electronic level can also be as common automatic peace
Flat spirit level is equally used, but measurement accuracy at this moment is less than the precision of electronic surveying, particularly precise electronic spirit level, by
In no optical micrometer, as common automatic compensated level in use, its precision is lower.
Current electronic spirit level employs three kinds of autoelectrinic number reading methods for differing larger in principle：1）Correlation method（Come
Block NA3002/3003）2) geometric method（Zeiss DiNi10/20）3) phase method（Open up general health DL101C/102C）.It and traditional instrument
Device, which is compared, following characteristics：
1) reading is objective.In the absence of error, misdescription problem, without artificial error in reading.
2) precision is high.Sight is high and stadia reading is all to be averaged to draw after processing using a large amount of bar code collimator graduation images
Come, therefore weaken the influence of Staff's carving error.Most instruments, which have, carries out the function that multiple reading is averaged, Ke Yixiao
Weak external condition influence.Unskilled operating personnel's industry can also carry out high-acruracy survey.
3) speed is fast.Due to eliminating count off, listen note, the scene time calculated and artificially malfunction resurvey quantity, survey
The amount time can save 1/3 or so compared with traditional instrument.
4) efficiency high.Need to only focus just can alleviate labor intensity with button with automatic reading.Sighting distance can also be remembered automatically
Record, is checked, and is handled and can be inputted electronic computer and post-processed, can solid line indoor and field integration.
Determine the measurement work of ground point elevation, the referred to as measurement of higher degree.The measurement of higher degree be again three groundworks of measurement it
One.According to the difference using instrument and Metrical Method, the measurement of higher degree can be divided into the measurement of the level, trigonometric levelling and air pressure elevation
Measurement.Elevation is measured with spirit level, the referred to as measurement of the level, it is the most frequently used, most accurate method in the measurement of higher degree.
The general principle of the measurement of the level provides " horizontal line of sight " using spirit level, measures the point-to-point transmission discrepancy in elevation, so that by
Known point height extrapolates unknown point height.
At present, generally elevation is measured with high differentiation.If the elevation of known A points, the elevation of B points to be determined, then exist
、Two rulers of setting on 2 points, and、A frame is disposed to obtain the instrument of horizontal line of sight between 2 points.Assuming that level
Position readings of the horizontal line of sight of instrument on ruler are respectivelyChi（Backsight）Reading is,Chi（Forward sight）Reading is, then、
Depth displacement between 2 points（The abbreviation discrepancy in elevation）For
（1）
ThenThe elevation of pointFor
（2）
（3）
The continuous measurement of the level.In the actual measurement of the level, A, B point-to-point transmission discrepancy in elevation are larger or apart from each other, dispose a water
Quasi- instrument can not determine the discrepancy in elevation between 2 points.Now it is necessary to set up several necessary temporarily vertical chis along A, B leveling line
Point, i.e. turning point（As elevation transference）.Spirit level is continuously disposed in the middle of two vertical chis according to the principle of the measurement of the level successively
To determine the discrepancy in elevation between adjacent spots, summation obtains the high difference of A, B point-to-point transmission.
In the high differentiation that measurement elevation is used at present, because spirit level instrument height is unknown, 2 points of height is measured every time
Path difference must all set up spirit level between two points to measure 2 points of staff reading, and such measurement efficiency is restricted.
The content of the invention
Technical problem to be solved in the utility model is how accurately to measure electronic level instrument height.
Electronic level with instrument height real―time precision measurment function, including electronic level, expansion link and camera,
Expansion link is vertically mounted under the pedestal of electronic level, and expansion link is hollow structure, and camera is arranged on the outside of expansion link, taken the photograph
As being connected between head and electronic level by wire, there is scale expansion link lower end, and expansion link lower end is substrate and appropriate counterweight.
Preferably, expansion link is formed by two sections of quarter butt concatenations, and the scale of expansion link lower end matches with the scale of levelling rod.Preferably,
The cross section of expansion link is equilateral triangle.Preferably, clear glass base is installed between camera and expansion link.Preferably,
Substrate is fixedly mounted on expansion link lower end.Preferably, substrate is cylinder.Preferably, substrate is detachable.Preferably, stretch
Screens screw is installed on contracting bar.Preferably, the cross section of expansion link epimere quarter butt is more than hypomere quarter butt, and camera is arranged on upper
On section quarter butt.The utility model has the advantages that as a result of above technical scheme：Utilize electronic level itself
Image reading function reads instrument height, and measurement accuracy is very high and saves great amount of cost；The elevation of electronic level be it is known,
The measurement of higher degree step on the datum mark is reduced, measurement efficiency is double；After electronic level essence is flat, expansion link and pedestal and greatly
The plane exact vertical of ground two, secondly expansion link is stretched out all the time is in close contact with ground reference point, and image accuracy of reading is very high, altogether
With the precision that ensure that surveyed instrument elevation.
Brief description of the drawings
Fig. 1 is the electronic level overall structure diagram with instrument height real―time precision measurment function；
Fig. 2 is electronic level and expansion link coupling part structural representation；
Fig. 3 is expansion link and camera part-structure schematic diagram；
Fig. 4 is expansion link bottom part partial enlargement structural representation；
Fig. 5 is current measurement of higher degree high differentiation principle schematic；
Fig. 6 is measurement of higher degree high differentiation principle schematic of the present utility model；
In figure：1. electronic level, 2. expansion links, 3. cameras, 4. pedestals, 5. cylindrical bases, 6. screens screws, 7.
Clear glass base, 8. scales, 9. wires.
Embodiment
Embodiment 1, as shown in accompanying drawing 1-4.
Electronic level with instrument height real―time precision measurment function, including electronic level, expansion link and camera,
Expansion link is vertically mounted under the pedestal of electronic level, and expansion link is hollow structure, and camera is arranged on the outside of expansion link, taken the photograph
As being connected between head and electronic level by wire, there is scale expansion link lower end, and expansion link lower end is substrate and appropriate counterweight.
Because object distance is constant, camera can be fixedly mounted by its focal length, make scale on the quarter butt of expansion link lower end as
It is in clearly in camera.The picture data of camera is read using electronic level images themselves reading function, instrument is measured
Height, measurement accuracy is very high and saves great amount of cost.The appropriate counterweight in expansion link lower end, or the longitudinal bullet of addition in expansion link
Spring, ensure that expansion link bottom keeps contacting with the ground reference point moment, measurement error is reduced, while also can real-time monitor
The high minor variations of device.Preferably, expansion link is formed by two sections of quarter butt concatenations, the scale of expansion link lower end and the scale of levelling rod
Match.The reasons why only two sections quarter butts are concatenated is that first, expansion link can highly be transferred to below 80mm by two sections of concatenations, foot
Enough typically to use, secondly, multistage concatenation is more difficult to ensure the perpendicularity of its junction, can bring bigger measurement error.Measuring scale
Scale match with the scale of levelling rod be in order that measuring scale and levelling rod can be supported the use preferably, expansion link
Cross section is equilateral triangle.The reasons why expansion link cross section is equilateral triangle is, under materials and consumption same case, triangle
The polygonized structure such as more circular is more stable, is not likely to produce Bending Deformation.Preferably, it is provided between camera and expansion link transparent
Glass base.This is, in order to increase the light needed for camera imaging, light compensating lamp can also to be installed in base, and light compensating lamp is opened manually
Optical switch is closed or added according to light intensity automatic switch.Preferably, substrate is fixedly mounted on expansion link lower end.It is preferred that
Ground, substrate is cylinder.This is contact of the substrate with ground reference point for convenience.Preferably, substrate is detachable.It is preferred that
Screens screw is installed on ground, expansion link.Screens screw is used to shrink fixation, is easy to place after being finished.Preferably, on expansion link
The cross section of section quarter butt is more than hypomere quarter butt, and camera is arranged on epimere quarter butt.The electronic level application method：A. set up
Electronic level, stretchs out expansion link, its bottom is touched terrestrial reference；B. it is thick flat；C. it is rough aim at, focusing, fine sight；
D. essence is flat；E. reading；F. instrument height is measured, the high number of degrees of camera shot image representative are read and recorded on electronic level
Value, computing equipment is high；G. measurement of higher degree principle and step, it is known that the elevation of A points, the elevation of B points to be determined, then existPoint
Upper setting levelling rod,A frame is disposed to obtain the electronic level of horizontal line of sight between point, it is assumed that the water of electronic level
Looking squarely position readings of the line on ruler is respectivelyChi reading is, electronic level instrument is a height ofH,ThenThe elevation of point
For
Telescope measurement is rotated afterwardsCChi readingc, then withBPoint orAPoint is known point, then is calculated with high differentiationCPoint
Elevation, disposes electronic level in D points again after having surveyed, circulates measurement with this and go down.
Measurement of higher degree principle of the present utility model and step is explained in detail below.
High differentiation, i.e., the method that tested point elevation is calculated using the discrepancy in elevation.Here, entering with the current high differentiation generally used
Row comparative illustration.
Current high differentiation principle as shown in figure 5, its measuring process with computational methods as stated in the Background Art.
High differentiation principle of the present utility model is as shown in fig. 6, due to electronic level instrument height of the present utility modelhIt is
Know, equivalent in current high differentiationChi reading, i.e., without measurementChi（Forward sight）Reading, then、Height between 2 points
Path difference（The abbreviation discrepancy in elevation）For
（4）
ThenThe elevation of pointFor
（5）
ThenThe elevation of pointFor
（6）
Measuring process current and of the present utility model contrast is understood that the utility model is in measurementThe elevation of point,
Electronic level is only measuredChi（Backsight）Reading, when rotation collimation telescopeCPoint onCRuler, you can measurementCChi（Forward sight）
Readingc, then withBPoint orAPoint is known point, then is calculated with high differentiationCThe elevation of point.So, eliminateBThe survey of point height
Amount, measurement efficiency is double.
Claims (9)
1. the electronic level with instrument height real―time precision measurment function, it is characterized in that including electronic level, expansion link with
Camera, expansion link is vertically mounted under the pedestal of electronic level, and expansion link is hollow structure, and camera is arranged on expansion link
Outside, is connected between camera and electronic level by wire, and there is scale expansion link lower end, and expansion link lower end is substrate and suitable
Measure counterweight.
2. the electronic level with instrument height real―time precision measurment function according to claim 1, it is characterized in that stretching
Contracting bar is formed by two sections of quarter butt concatenations, and the scale of expansion link lower end matches with the scale of levelling rod.
3. the electronic level with instrument height real―time precision measurment function according to claim 1 or 2, it is characterized in that
The cross section of expansion link is equilateral triangle.
4. the electronic level with instrument height real―time precision measurment function according to claim 1 or 2, it is characterized in that
Clear glass base is installed between camera and expansion link.
5. the electronic level with instrument height real―time precision measurment function according to claim 1, it is characterized in that base
Bottom is fixedly mounted on expansion link lower end.
6. the electronic level with instrument height real―time precision measurment function according to claim 5, it is characterized in that base
Bottom is cylinder.
7. the electronic level with instrument height real―time precision measurment function according to claim 5 or 6, it is characterized in that
Substrate is detachable.
8. the electronic level with instrument height real―time precision measurment function according to claim 1, it is characterized in that stretching
Screens screw is installed on contracting bar.
9. the electronic level with instrument height real―time precision measurment function according to claim 2, it is characterized in that stretching
The cross section of contracting bar epimere quarter butt is more than hypomere quarter butt, and camera is arranged on epimere quarter butt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720239677.XU CN206514844U (en) | 2017-03-13 | 2017-03-13 | Electronic level with instrument height real―time precision measurment function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720239677.XU CN206514844U (en) | 2017-03-13 | 2017-03-13 | Electronic level with instrument height real―time precision measurment function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206514844U true CN206514844U (en) | 2017-09-22 |
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ID=59870462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720239677.XU Expired - Fee Related CN206514844U (en) | 2017-03-13 | 2017-03-13 | Electronic level with instrument height real―time precision measurment function |
Country Status (1)
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|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020202A (en) * | 2017-03-13 | 2018-05-11 | 湖南科技大学 | There is the electronic level and its application method of the high real―time precision measurment of instrument |
| CN112033360A (en) * | 2020-09-17 | 2020-12-04 | 中交二航局第二工程有限公司 | Prism centering rod and prism centering rod height measuring method |
-
2017
- 2017-03-13 CN CN201720239677.XU patent/CN206514844U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020202A (en) * | 2017-03-13 | 2018-05-11 | 湖南科技大学 | There is the electronic level and its application method of the high real―time precision measurment of instrument |
| CN108020202B (en) * | 2017-03-13 | 2023-10-03 | 湖南科技大学 | Electronic level with instrument high real-time accurate measurement function and use method thereof |
| CN112033360A (en) * | 2020-09-17 | 2020-12-04 | 中交二航局第二工程有限公司 | Prism centering rod and prism centering rod height measuring method |
| CN112033360B (en) * | 2020-09-17 | 2022-05-03 | 中交二航局第二工程有限公司 | Prism centering rod and prism centering rod height measuring method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170922 Termination date: 20200313 |