CN203053432U - Digital level instrument - Google Patents
Digital level instrument Download PDFInfo
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- CN203053432U CN203053432U CN 201320001446 CN201320001446U CN203053432U CN 203053432 U CN203053432 U CN 203053432U CN 201320001446 CN201320001446 CN 201320001446 CN 201320001446 U CN201320001446 U CN 201320001446U CN 203053432 U CN203053432 U CN 203053432U
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- scale
- pedestal
- focusing
- telescope
- focusing system
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- Automatic Focus Adjustment (AREA)
Abstract
The utility model relates to a digital level instrument belonging to the technical field of measuring instruments. The digital level instrument comprises a horizontal rotary base, a wide angle shooting and processing system, a telescope focusing system, a laser emitting and receiving system, a CCD (Charge Coupled Device), a CPU (Central Processing Unit) and a scale. In order to ensure progress of automatic measurement, the CPU drives the horizontal rotary base and the telescope focusing system for multiple times when controlling the scale to focus, and corresponding images are obtained in the CCD. The CPU compares contrast ratio of black and white bar codes in the images in different focusing positions to judge the optimal focusing position, so that the telescope focusing system can be focused to the optimal position.
Description
Technical field
The utility model belongs to the surveying instrument technical field, is specifically related to a kind of spirit-leveling instrument.
Background technology
The measuring principle of spirit-leveling instrument is: sight the discrepancy in elevation that the staff reading that stands vertically on 2 o'clock is measured point-to-point transmission with horizontal line of sight; Measurement of the level has optics measurement of the level and digital leveling to measure two kinds of methods.
The optics measurement of the level is to use maximum leveling measuring methods at present, uses optical level and levelling pole during measurement; Optical level mainly is made up of telescope, graticule, air level, shell and pedestal, telescope is made of object lens, focusing lens, eyepiece, automatic compensated level also has the self leveling device, parallelly in the vertical direction on the graticule uniformly-spaced be carved with three level silks, be called silk, middle silk and following, the levelling pole that the optics measurement of the level is used is to be shaped on the uniformly-spaced numerical reference of delineation at blade, and uniformly-spaced delineating for the ease of identification has several different patterns again; When measuring with optical level, at first spirit-leveling instrument is installed on the tripod, and according to air level leveling spirit-leveling instrument, sight levelling pole and focusing clear after, according to the position of middle silk on levelling pole on the spirit-leveling instrument graticule, read the big reading part (rice and decimetre) of height by numerical reference, again according in the distance of silk and levelling pole delineation read little reading partly (centimetre and millimeter, and less than all branches of millimeter); According to going up silk and following reading that reads on the spirit-leveling instrument graticule, can calculate the distance of spirit-leveling instrument and levelling pole by the principle of similar triangles, just can obtain the difference of diverse location height according to middle reading of the levelling pole of diverse location; Mainly by manually finishing reading, therefore the result who measures can have the error that the observer causes, and speed is slower in the optics measurement of the level.
Digital leveling is measured the measurement of the level that can satisfy various grades, use digital level and bar code levelling pole during measurement, digital level mainly is made up of telescope, graticule, air level, self leveling device, image collecting device, computing machine, power supply, shell and pedestal, the bar code levelling pole is shaped on the bar code delineation of the unequal interval of encoding by certain scheme at blade, and does not have numerical reference; When measuring with digital level, at first spirit-leveling instrument is installed on the tripod, and according to air level leveling spirit-leveling instrument, sight levelling pole and focusing clear after, the image collecting device that computerizeds control obtains the image of the levelling pole in the visual field, tries to achieve height and distance according to encoding scheme and the corresponding disposal route of the image that obtains, levelling pole; Because its measurement is finished automatically by machine, so the result is stable, and speed is very fast.
The deficiencies in the prior art part is: existing spirit-leveling instrument needs at least two people could finish measurement, one of them people is responsible for the commentaries on classics of spirit-leveling instrument and asks, aims at and work such as focusing, another people is responsible for levelling pole is moved on another aspect from a bit, in today that cost of labor grows to even greater heights, studying a kind of digital level that can realize that the one man operation measures automatically has its significant values.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of digital spirit-leveling instrument of single independent operation.
The technical solution of the utility model is:
Digital spirit-leveling instrument, comprise: horizontally rotate pedestal, wide-angle imaging disposal system, telescope focusing system, Laser emission and receiving system, CCD device, CPU element, scale, wherein, described scale is sought in the rotation under the described driving that horizontally rotates pedestal of described wide-angle imaging disposal system, calculates the azimuth-range at described scale place then; Described telescope focusing system, be used for according to the azimuth-range of described scale by described horizontally rotate the pedestal adjustment towards, aim at automatic focusing behind the described scale; Pattern on the described scale is chequered with black and white bar code, described scale is provided with laser reflective film or laser reflectance coating, described Laser emission and receiving system are used for launching laser and receiving reflection ray when pedestal rotates described horizontally rotating, to determine the azimuth-range at described scale place; Described CCD device is for the exact image that obtains described scale after focusing by described telescope focusing system; Described CPU element, be used for horizontally rotating according to the azimuth-range control at described scale place is described that pedestal rotates corresponding angle so that described telescope focusing system alignment scale, driving described telescope focusing system then adjusts on the corresponding focal length, and obtain the image that in described CCD device scale forms, calculate elevation and the distance of this described scale at last, and store in the storer.
During concrete work, be the progress of guaranteeing to measure automatically, when described CPU element control fiducial mark chi is focused, described CPU element repeatedly drives described pedestal and the described telescope focusing system of horizontally rotating, and in described CCD device, obtain corresponding image, described CPU element is by the contrast of the described chequered with black and white bar code in the locational images of relatively more different focusing, judging best focusing position, thereby described telescope focusing system accommodated to the optimum position.
The beneficial effects of the utility model are: spirit-leveling instrument in use, the wide-angle imaging disposal system is sought scale all around under the driving that horizontally rotates pedestal, after finding scale in the A position, calculate coarse positional information at scale place, then by horizontally rotating pedestal regulation and control system mirror focusing system far away towards the A position, automatic focusing behind the alignment scale; CPU element calculates the accurate positional information of this scale by obtaining the image that forms scale in the CCD device, comprises elevation and range information, and stores in the storer; After scale is moved on to the B position, adopt and obtain scale in the same way in the positional information of B position, at last by comparing A, related data on 2 of the B can draw the discrepancy in elevation of point-to-point transmission, for obtaining best focusing position, CPU element repeatedly drives and horizontally rotates pedestal, angle with continuous fine adjustment telescope focusing pump system alignment scale, and by comparing the contrast of the described chequered with black and white bar code in the locational images of different focusing, to judge best focusing position, this moment the fiducial mark chi image in the centre imaging of CCD, thereby measuring error is down to minimum; Utilize the principle of laser rectilinear propagation, the scale of use is provided with laser reflective film or laser reflectance coating; Spirit-leveling instrument is suitable for transmitting and receiving simultaneously laser when using, thereby find out the approximate location at scale place, control mirror focusing system alignment scale far away then and focus, last CPU element calculates the accurate positional information of this scale by obtaining the image that forms scale in the CCD device.
Description of drawings
Fig. 1 is the imaging synoptic diagram of the wide-angle imaging disposal system of digital spirit-leveling instrument;
Fig. 2 is the synoptic diagram that digital spirit-leveling instrument and scale displacement are sighted again, measure, recorded automatically;
Fig. 3 is the structural representation of digital spirit-leveling instrument.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
In conjunction with Fig. 1-3, digital spirit-leveling instrument, comprise: horizontally rotate pedestal 1, wide-angle imaging disposal system 2, telescope focusing system 3, Laser emission and receiving system 4, CCD device 5, CPU element 6, scale, wherein, described scale is sought in the rotation under the described driving that horizontally rotates pedestal 1 of described wide-angle imaging disposal system 2, calculates the azimuth-range at described scale place then; Described telescope focusing system 3, be used for according to the azimuth-range of described scale by described horizontally rotate pedestal 1 adjust towards, aim at automatic focusing behind the described scale; Pattern on the described scale is chequered with black and white bar code, described scale is provided with laser reflective film or laser reflectance coating, described Laser emission and receiving system 4, be used for launching laser and receiving reflection ray when pedestal 1 rotates described horizontally rotating, to determine the azimuth-range at described scale place; Described CCD device 5 is for the exact image that obtains described scale after focusing by described telescope focusing system 3; Described CPU element 6, be used for according to the described corresponding angle of pedestal 1 rotation that horizontally rotates of the azimuth-range control at described scale place so that described telescope focusing system 3 alignment scales, driving described telescope focusing system 3 then adjusts on the corresponding focal length, and obtain the image that in described CCD device 5 scale forms, calculate elevation and the distance of this described scale at last, and store in the storer.
During concrete work, be the progress of guaranteeing to measure automatically, when described CPU element 6 control fiducial mark chis are focused, described CPU element drives described pedestal 1 and the described telescope focusing system 3 of horizontally rotating more than 6 time, and in described CCD device 5, obtain corresponding image, described CPU element 6 is by the contrast of the described chequered with black and white bar code in the locational images of relatively more different focusing, judging best focusing position, thereby described telescope focusing system 3 accommodated to the optimum position.
Below only be preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. digital spirit-leveling instrument comprises: horizontally rotate pedestal, wide-angle imaging disposal system, telescope focusing system, Laser emission and receiving system, CCD device, CPU element, scale,
It is characterized in that: described scale is sought in the rotation under the described driving that horizontally rotates pedestal of described wide-angle imaging disposal system, calculates the azimuth-range at described scale place then; Described telescope focusing system, be used for according to the azimuth-range of described scale by described horizontally rotate the pedestal adjustment towards, aim at automatic focusing behind the described scale.
2. digital spirit-leveling instrument according to claim 1, it is characterized in that: the pattern on the described scale is chequered with black and white bar code, described scale is provided with laser reflective film or laser reflectance coating, described Laser emission and receiving system, be used for launching laser and receiving reflection ray when pedestal rotates described horizontally rotating, to determine the azimuth-range at described scale place
3. digital spirit-leveling instrument according to claim 1 is characterized in that: described CCD device is used for obtaining by described telescope focusing system the exact image of described scale after focusing.
4. digital spirit-leveling instrument according to claim 1, it is characterized in that: described CPU element, be used for horizontally rotating according to the azimuth-range control at described scale place is described that pedestal rotates corresponding angle so that described telescope focusing system alignment scale, driving described telescope focusing system then adjusts on the corresponding focal length, and obtain the image that in described CCD device scale forms, calculate elevation and the distance of this described scale at last, and store in the storer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320001446 CN203053432U (en) | 2013-01-05 | 2013-01-05 | Digital level instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320001446 CN203053432U (en) | 2013-01-05 | 2013-01-05 | Digital level instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203053432U true CN203053432U (en) | 2013-07-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320001446 Expired - Fee Related CN203053432U (en) | 2013-01-05 | 2013-01-05 | Digital level instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203053432U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270869A (en) * | 2016-04-08 | 2017-10-20 | 殷熙松 | Scale is determined using light sensor portion and the level of laser |
| CN114088005A (en) * | 2021-11-19 | 2022-02-25 | 中新国际联合研究院 | Device and method for measuring structural deflection |
-
2013
- 2013-01-05 CN CN 201320001446 patent/CN203053432U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107270869A (en) * | 2016-04-08 | 2017-10-20 | 殷熙松 | Scale is determined using light sensor portion and the level of laser |
| CN114088005A (en) * | 2021-11-19 | 2022-02-25 | 中新国际联合研究院 | Device and method for measuring structural deflection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20140105 |