CN104457788A - Large-size mobile base line pile and calibration method thereof - Google Patents
Large-size mobile base line pile and calibration method thereof Download PDFInfo
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- CN104457788A CN104457788A CN201410621092.5A CN201410621092A CN104457788A CN 104457788 A CN104457788 A CN 104457788A CN 201410621092 A CN201410621092 A CN 201410621092A CN 104457788 A CN104457788 A CN 104457788A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
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- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Piles And Underground Anchors (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to a base line pile, and belongs to the field of instrument calibration. The large-size mobile base line pile is characterized by comprising a zero-bit mobile base line pile and a mobile base line target pile, wherein the zero-bit mobile base line pile and the mobile base line target pile are arranged at different points to form a section of base line; the zero-bit mobile base line pile comprises a pile base and four main body brackets arranged on the pile base; a two-dimensional horizontal linear adjusting mechanism, a two-dimensional rotating adjusting mechanism and granite positioning baffle blocks are arranged at the top end of each bracket; the granite positioning baffle blocks are arranged on each two adjusting mechanisms; the mobile base line target pile comprises a base line target pile base and a main body pile frame of a base line target; a horizontal pendulum mechanism is arranged on the main body pile frame of the base line target; and a practice target vertical to a horizontal end surface is arranged on the horizontal pendulum mechanism. According to the base line pile, instant putting, instant calibrating and instant correcting and verifying are achieved by respectively arranging the zero-bit mobile base line pile and the mobile base line target pile which are matched to form the base line; and the problem of a permanent base line field is solved.
Description
Technical field
The present invention relates to the baseline stake for calibrating all kinds of large scale engineering surveying instrument, particularly relating to the portable baseline stake of a kind of large scale and method of operating.
Background technology
Baseline stake (also referred to as observation pier) is as large scale material standard, can be used for calibrating all kinds of large scale engineering surveying instrument, but the environmental baseline required by fixed base pile foundation is harsher, need forever to take space, beeline channel place for a long time, and need certain maintenance period after pile foundation concrete construction.Therefore be not that the foundation of having ready conditions of each department is permanently fixed baseline stake.And the GB16789-1997 setting up permanent baseline stake institute foundation harsher than the site requirements of advising in Long baselines specifications of surveys and JJF1214-2008 length baseline calibration specification (permanent take beeline channel, baseline place geology stable etc.), in fact the metrological service of many commitment amount value transmit does not all have condition to provide permanent large space baseline place, therefore just cannot carry out the assay calibration work of low precision large-scale metrology equipment yet.
Summary of the invention
Technical matters to be solved by this invention is to provide the portable baseline stake of a kind of large scale and calibration method, namely combination forms baseline after putting, immediately put, instant demarcation, instant calibrating and measuring, solves many units and is limited to the defect cannot carrying out the work of low precision large-scale metrology equipment assay calibration without fixing permanent baseline place.
Technical scheme
A kind of large scale moves baseline stake, it is characterized in that: comprise 0 displacement and move baseline stake and the stake of mobile baseline target, and described 0 displacement is moved baseline stake and the stake of mobile baseline target and is separately positioned on difference and forms a segment base line; Described 0 displacement is moved baseline stake and is comprised pile foundation and be arranged on four main body racks in pile foundation, described cantilever tip is provided with bit combination adjustment table top, table top is provided with 2 dimension horizontal direction straight line adjusting mechanisms and 2 dimension rotating and regulating mechanisms, and the grouan position block be arranged on two adjusting mechanisms, described pile foundation is provided with three lifting foot screw adjustment pile foundation end face levels; The stake of described mobile baseline target comprises baseline target pile foundation and is arranged on the baseline target main body pile frame in baseline target pile foundation, baseline target main body pile frame is provided with horizontal switch mechanism, horizontal switch mechanism is provided with the target perpendicular to horizontal end face.
Described bit combination adjustment table top is parallel with described pile foundation end face, described 2 dimension horizontal direction straight line adjusting mechanisms comprise one group of parallel linear motion guide slide block combination be fixedly installed on bit combination adjustment table top, top superposition one group and the guide rail movement axis direction of below in the horizontal plane angle are that another of 90 degree is organized parallel linear motion guide slide block and combined, make described grouan position block can adjust before and after on table top and side-to-side movement at bit combination, two groups of combinations also comprise hook knob.
Described 2 dimension rotating and regulating mechanisms comprise horizontal switch adjusting mechanism and vertical luffing angle adjusting mechanism.
Forklift carrying slot is provided with bottom described pile foundation and bottom baseline target pile foundation.
Described baseline target pile foundation is provided with three lifting foot screw adjustment pile foundation end face levels.
Beneficial effect
Large scale of the present invention moves baseline stake and adopts and arrange 0 displacement respectively and move baseline stake and the stake of mobile baseline target, then coordinates composition baseline, can realize immediately putting, immediately demarcating and instant calibrating and measuring.And large scale of the present invention moves when baseline stake only need use and takes out of indoor, temporarily putting in the wild or in the straight length space of field hundreds of meters, pile foundation is transported back indoor again after experiments of measuring terminates, can again put outdoor when needing, easy to use, data are reliable, solve many metrological services cannot carry out the work of low precision large-scale metrology equipment assay calibration problem owing to cannot provide fixing permanent baseline place.
Accompanying drawing explanation
Fig. 1 is that baseline stake schematic diagram is moved in 0 displacement of the present invention.
Fig. 2 is mobile baseline target schematic diagram of the present invention.
Fig. 3 is total powerstation demarcation modular converter of the present invention.
Fig. 4 is that modular converter demarcated by laser tracker target ball of the present invention.
Wherein: 1, grouan position block, 2, 2 dimension rotating and regulating mechanisms, 3, upper group of guide rail slide block combination of 2 dimension horizontal direction straight line adjusting mechanisms, 4, lower group of guide rail slide block combination of 2 dimension horizontal direction straight line adjusting mechanisms, 5, main body rack, 6, the forklift carrying dedicated slot at the bottom of baseline stake is moved in 0 displacement, 7, lifting foot screw, 8, target, 9, horizontal switch mechanism, 10, baseline target main body pile frame, 11, forklift carrying dedicated slot at the bottom of the stake of mobile baseline target, 12, lifting foot screw in mobile baseline target pile foundation, 13, the upper workplace of total powerstation modular converter, 14, total powerstation connects convex thread, 15, the lateral register reference field of total powerstation modular converter, 16, the upper workplace of laser tracker target ball modular converter, 17, laser tracker target ball pilot hole, 18, the lateral register reference field of laser tracker target ball modular converter.
Embodiment
Below in conjunction with specific embodiments and the drawings, set forth the present invention further.
Because the requirement of setting up fixed base stake is harsh, therefore be not that the foundation of having ready conditions of each unit or department is permanently fixed baseline stake, a kind of large scale of design-build of the present invention moves baseline stake, adopt the stake of adjustable moving formula baseline, the combination of two or more pile foundation is placed on large space outdoor sports ground, can be used for the instrument such as focusing operation, electro-optical distance instrument of the relatively low hand-held laser rangefinder of short time period calibration measurement accuracy class, ultrasonic range finder, engineering optics instrument etc.
JJG966-2010 hand-held laser rangefinder vertification regulation (abbreviation new order) according to up-to-date promulgation carries out design novel standard device.New order is proposed higher requirement to technical indicators such as the measurement range in former code JJG966-2001 (being called for short old code) and uncertainties of measurement.
Consider and meet calibrating hand-held laser rangefinder 0 grade, the different demands of 1 grade, 2 grades, in table 1.
Table 1 hand-held laser rangefinder 0 grade, 1 grade, 2 grades technical requirements
| Stadimeter grade | Permissible error |
| 0 grade | ±(1.5mm+5×10 -5D) |
| 1 grade | ±(3.0mm+5×10 -5D) |
| 2 grades | ±(5.0mm+5×10 -5D) |
And for example: range ability (0 ~ 100) m in old code, (0 ~ 200) m is changed in new order.Through investigation, up-to-date hand-held laser rangefinder, its measurement range reaches (0 ~ 250) m, the maximum permission error of indication of 0 grade: ± (1.5+5 × 10
-5) D mm, D unit: mm
Consider stability factor, mobile baseline stake design weight reaches 400kg.Adopt the process for machining such as steel section welding grinding, design 3 lifting foot screws in order to adjust pile foundation end face level, grouan table top position block, possess 2 dimension horizontal direction straight-line displacement degree of freedom adjusting mechanisms, 2 dimension rotary freedom (switch angle and luffing angle) adjusting mechanisms simultaneously.Bottom mobile baseline stake, reserved forklift carrying dedicated slot, is convenient to the transport operation of hand-hydraulic forklift (carrying 800kg).
Mobile baseline design forms a segment base line by two groups of steel construction pier studs, and be respectively 0 displacement and move baseline stake and the stake of mobile baseline target, wherein 0 displacement moves baseline stake as shown in Figure 1.Comprise pile foundation and be arranged on four main body racks in pile foundation, described cantilever tip is provided with bit combination adjustment table top, table top is provided with 2 dimension horizontal direction straight line adjusting mechanisms and 2 dimension rotating and regulating mechanisms, and the grouan position block be arranged on two adjusting mechanisms, described pile foundation is provided with three lifting foot screw adjustment pile foundation end face levels.
Baseline stake is moved in 0 displacement, and to devise 2 dimension horizontal direction straight-line displacement degree of freedom adjustable, so that arrange mm level round values when demarcating baseline, bit combination adjustment table top above main body rack is parallel with steel structure pile cardinal extremity face, bit combination adjustment table top is fixedly connected one group of linear motion guide slide block combination, top superposition one group and below guide rail movement axis direction angle are that another of 90 ° is organized guide rail slide block and combined, these two groups of straight-line guide rail slide block groups have lock function after fine position separately, design modifying scope: ± 50mm.
2 dimension rotary freedom adjusting mechanisms comprise switch angular setting and luffing angle adjustment.Wherein, switch angular setting is the horizontal direction target in order to find 50m-250m fast accurately; Then adjust luffing angle, namely rotate adjustment at vertical direction, to find the target upper-lower position of mobile baseline target stake fast accurately, laser facula rapid adjustment is projeced into target center the most at last.
The stake of mobile baseline target can be placed on any diverse location that baseline stake 50m ~ 200m is moved in distance 0 displacement, structure such as accompanying drawing 2 is illustrated, comprise baseline target pile foundation and be arranged on the baseline target main body pile frame in baseline target pile foundation, baseline target main body pile frame is provided with horizontal switch mechanism, horizontal switch mechanism is provided with the target perpendicular to horizontal end face.Ensured the designing technique scope of flatness (≤0.01) and the verticality (± 0.10mm) defined with surface level by process for machining perpendicular to the target panel of horizontal end face, the stake of mobile baseline target has switch angle regulation function.Also forklift carrying slot is provided with bottom baseline target pile foundation.
It is an important step that mobile baseline puts rear staking-out work.Mobile baseline location is placed after adjustment operated, and two kinds of different equipment can be adopted to carry out calibration measurements, that is: laser tracker on-site proving and total powerstation on-site proving.
Be total powerstation demarcation modular converter as shown in Figure 3, pre-buried convex thread (metric and English the is general) inserts connected with total powerstation bottom thread hole of customization grouan, screw thread inserts center is transfer standard parameter to the distance of grouan reference side.One group of two identical modular converter is placed on 0 displacement respectively and moves baseline stake end face and target baseline end face, move on position block in baseline stake and mobile baseline target stake end face target near 0 displacement respectively.In other words, be exactly adopt total powerstation by nominal data between the baseline of position, screw thread forced centering hole, conversion position block and target identity distance from nominal data.Object is that the block backer mode in order to meet hand-held laser rangefinder is located.
Be that modular converter demarcated by laser tracker target ball as shown in Figure 4, customization grouan pre-buried with laser tracker with the use of circular hole inserts, when prism target ball is positioned circular hole ball nest inserts center, center of circular hole is transfer standard parameter to the distance of grouan side reference field.In like manner, another group two identical modular converters are placed on 0 baseline stake end face and mobile baseline target stake end face, between the baseline of center pit position nominal data and convertible position block and target identity distance from nominal data.
Laser tracker target ball is demarcated modular converter and is designed completely the same physical dimension (the actual machining tolerance area requirement≤0.01mm of spacing namely positioning reference plane to two different instrument reduction centers of circle) from positioning reference plane to instrument anchor point from total powerstation demarcation modular converter.
For hand-held laser rangefinder calibrating, its measurement performance technical indicator: the indicating value limits of error are ± (1.5+5 × 10
-5d).Therefore length standards is the Main Regulator for the standard set-up examined and determine, its demarcation can adopt following two schemes: total powerstation stadimeter standardization (support device is shown in shown in accompanying drawing 3), laser tracker standardization (support device is shown in shown in accompanying drawing 4).
Calibration result is compared experiment:
Suggestion is according to En control experiment formula:
wherein: a: represent the data that baseline point is demarcated, a
1for the data that total powerstation is demarcated, a
2for the data that laser tracker is demarcated.U: represent calibration measurements expanded uncertainty, U
1for total powerstation calibration measurements expanded uncertainty, U
2for laser tracker calibration measurements expanded uncertainty.
If experimental data comparison result, En value is less than or equal to 1, then demarcate conclusion for satisfied, can carry out measuring the calibrating of hand-held laser rangefinder.
Large scale of the present invention moves baseline stake and adopts and arrange 0 displacement respectively and move baseline stake and the stake of mobile baseline target, then coordinates composition baseline, can realize immediately putting, immediately demarcating and instant calibrating and measuring.And large scale of the present invention moves when baseline stake only need use and takes out of indoor, temporarily putting in the wild or in the straight length space of field hundreds of meters, pile foundation is transported back indoor again after experiments of measuring terminates, can again put outdoor when needing, easy to use, data are reliable, solve many metrological services cannot carry out the work of low precision large-scale metrology equipment assay calibration problem owing to cannot provide fixing permanent baseline place, especially overcome the addressing difficulty of the permanent baseline in densely populated big city.
Claims (6)
1. large scale moves a baseline stake, it is characterized in that: comprise 0 displacement and move baseline stake and the stake of mobile baseline target, and described 0 displacement is moved baseline stake and the stake of mobile baseline target and is separately positioned on difference and forms a segment base line; Described 0 displacement is moved baseline stake and is comprised pile foundation and be arranged on four main body racks in pile foundation, described cantilever tip is provided with bit combination adjustment table top, table top is provided with 2 dimension horizontal direction straight line adjusting mechanisms and 2 dimension rotating and regulating mechanisms, and the grouan position block be arranged on two adjusting mechanisms, described pile foundation is provided with three lifting foot screw adjustment pile foundation end face levels; The stake of described mobile baseline target comprises baseline target pile foundation and is arranged on the baseline target main body pile frame in baseline target pile foundation, baseline target main body pile frame is provided with horizontal switch mechanism, horizontal switch mechanism is provided with the target perpendicular to horizontal end face.
2. large scale as claimed in claim 1 moves baseline stake, it is characterized in that: described bit combination adjustment table top is parallel with described pile foundation end face, described 2 dimension horizontal direction straight line adjusting mechanisms comprise one group of parallel linear motion guide slide block combination be fixedly installed on bit combination adjustment table top, top superposition one group and the guide rail movement axis direction of below in the horizontal plane angle are that another of 90 degree is organized parallel linear motion guide slide block and combined, make described grouan position block can adjust before and after on table top and side-to-side movement at bit combination, two groups of combinations also comprise hook knob.
3. large scale as claimed in claim 1 or 2 moves baseline stake, it is characterized in that: described 2 dimension rotating and regulating mechanisms comprise horizontal switch adjusting mechanism and vertical luffing angle adjusting mechanism.
4. the large scale as described in claim 1 or 2 or 3 moves baseline stake, it is characterized in that: be provided with forklift carrying slot bottom described pile foundation and bottom baseline target pile foundation.
5. the large scale as described in claim 1 or 2 or 3 moves baseline stake, it is characterized in that: described baseline target pile foundation is provided with three lifting foot screw adjustment pile foundation end face levels.
6. large scale as claimed in claim 1 moves a scaling method for baseline stake, it is characterized in that comprising the following steps:
(1) spacious place places 0 displacement and moves baseline stake out of doors, the stake of mobile baseline target is placed on any diverse location that baseline stake 50m ~ 200m is moved in distance 0 displacement;
(2) adjust 0 displacement move in baseline stake 2 dimension horizontal direction straight line adjusting mechanisms and 2 dimension rotating and regulating mechanisms, find target upper-lower position fast accurately, laser facula rapid adjustment is projeced into target center, adjusts the horizontal switch mechanism of mobile baseline target stake simultaneously, form baseline;
(3) total powerstation is adopted to carry out on-site proving: one group two identical total powerstation demarcation modular converters to be placed on respectively 0 displacement and to move baseline stake end face and mobile baseline target stake end face, the grouan position block in baseline stake and the target on mobile baseline target stake end face is moved respectively near 0 displacement, detect the distance of convex thread inserts center to reference side at described total powerstation demarcation modular converter center, be converted to position block and target identity distance from nominal data;
(4) and then adopt laser tracker to carry out on-site proving: the identical laser tracker target balls of another group two are demarcated modular converters and be placed on 0 displacement respectively and move baseline stake end face and mobile baseline target stake end face, the grouan position block in baseline stake and the target on mobile baseline target stake end face is moved respectively near 0 displacement, detect the distance of circular hole inserts center to reference side at described total powerstation demarcation modular converter center, be converted to position block and target identity distance from nominal data, measure-alike from positioning reference plane to instrument anchor point of modular converter and described total powerstation demarcation modular converter demarcated by described laser tracker target ball,
(5) nominal data of above-mentioned steps 3 and step 4 is compared according to following comparison formula:
wherein: a
1for the data that total powerstation is demarcated, a
2for the data that laser tracker is demarcated, U
1for total powerstation calibration measurements expanded uncertainty, U
2for laser tracker calibration measurements expanded uncertainty; If En value is less than or equal to 1, then complete demarcation.
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| CN104964696A (en) * | 2015-06-12 | 2015-10-07 | 南京市计量监督检测院 | Total station electronic tacheometer automatic wireless remote control and calibration device and method |
| CN105258640A (en) * | 2015-08-06 | 2016-01-20 | 大理大学 | Multifunctional object measuring instrument and using method thereof |
| CN109520524A (en) * | 2018-11-08 | 2019-03-26 | 大连理工大学 | The calibrating installation positioned for one word instrument of laser in landforms instrument |
| CN112229386A (en) * | 2020-10-10 | 2021-01-15 | 王莉飞 | Directional distance detection equipment for engineering exploration and detection method thereof |
| CN112577520A (en) * | 2019-05-24 | 2021-03-30 | 厦门市计量检定测试院 | Prism positioning device used for detecting total station and having stable structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112577520A (en) * | 2019-05-24 | 2021-03-30 | 厦门市计量检定测试院 | Prism positioning device used for detecting total station and having stable structure |
| CN112229386A (en) * | 2020-10-10 | 2021-01-15 | 王莉飞 | Directional distance detection equipment for engineering exploration and detection method thereof |
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| CN104457788B (en) | 2017-05-24 |
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