CN214333751U - Indoor virtual baseline verification system for handheld laser range finder - Google Patents
Indoor virtual baseline verification system for handheld laser range finder Download PDFInfo
- Publication number
- CN214333751U CN214333751U CN202023039490.6U CN202023039490U CN214333751U CN 214333751 U CN214333751 U CN 214333751U CN 202023039490 U CN202023039490 U CN 202023039490U CN 214333751 U CN214333751 U CN 214333751U
- Authority
- CN
- China
- Prior art keywords
- range finder
- laser range
- plane mirror
- light path
- plane
- 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.)
- Active
Links
Images
Abstract
The utility model belongs to the technical field of geometry measuring device calibrating installation, a laser range finder calibration equipment is related to, especially hand-held type laser range finder is with indoor virtual baseline verification system and verification method thereof. Including the examination platform of a length to setting up, install the guide rail in the examination platform, the one end of this guide rail sets up to the fixed part, and slide rail middle part slidable mounting has the removal portion, install the adjustment platform side by side and reflect the target along the width direction of examination platform in the fixed part, wherein the laser range finder that the mobile installation was waited to examine in the adjustment platform, a total powerstation is installed to laser range finder laser outgoing position one side dorsad the light path of total powerstation and laser range finder is parallel, and the light path setting altogether, install the removal subassembly in removal portion and the fixed part respectively, this removal subassembly can be with the light path of total powerstation and laser range finder's light path in the quartic reflection target.
Description
Technical Field
The utility model belongs to the technical field of geometry measuring device calibrating installation, a laser range finder calibration equipment is related to, especially hand-held type laser range finder is with indoor virtual baseline verification system.
Background
The handheld laser range finder is used as a portable measuring instrument, uses laser as a carrier wave, has the characteristic of diffuse reflection measurement of a target surface, can realize measurement of a space short-distance by a pulse method, a phase method and other methods, and has a measuring range of 200 m. According to the requirements of JJG 966-. Therefore, how to establish a standard baseline long enough in a small indoor space is a critical issue in the verification process of the handheld laser range finder at present.
In 2016, the verification method and system research of a handheld laser range finder (Qiao Weidong, Zhao Min, Liu kang, and the like) recurs to a standard length of 50m on a guide rail of 16m, and Wanglong (the research of a novel handheld laser range finder detection device [ J ]. Chinese measurement, 2016, (10):71-74) further widens the measurement range of a baseline system to 160m through three plane mirror groups. In 2017, Liyiming (research on automatic verification key technology of a handheld laser range finder [ D ]. Tianjin: Tianjin university, 2017) combines an automatic control and visual detection technology to realize the automatic verification of the range finder, but the measurement range of the system only reaches 50 m. It can be seen that the existing outdoor and indoor detection methods cannot establish a length detection reference with a measuring range of 200 m.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide one kind and utilize three plane mirror to carry out the light path on 50m high accuracy guide rail and fold, realize quadruple optical path multiplication, built the indoor baseline of 200m, and then can develop the handheld laser range finder and examine the indoor virtual baseline verification system for handheld laser range finder of the index error verification experiment of 50 ~ 200m survey section to handheld laser range finder.
The utility model discloses a realize through following technical scheme:
indoor virtual baseline verification system for hand-held type laser range finder, including a long examination platform to setting up, install the guide rail in the examination platform, the one end of this guide rail sets up to the fixed part, and slide rail middle part slidable mounting has removal portion, its characterized in that: install adjustment platform and reflection target side by side along the width direction of examination platform in the fixed part, wherein but the laser range finder that the inspection was waited to movable installation in the adjustment platform, a total powerstation is installed to laser range finder one side of emitting position dorsad the light path of total powerstation and laser range finder is parallel, and the setting of total powerstation and laser range finder is total to the light path, install the removal subassembly in removal portion and the fixed part respectively, this removal subassembly can be with the light path of total powerstation and laser range finder's light path in the quartic reflection target.
Furthermore, a reflecting sheet is bonded to the reflecting surface of the reflecting target.
Furthermore, the reflection target is fixed through a right-angle fixing block and is arranged perpendicular to the length direction of the track.
Further, install diaphragm one and diaphragm two in order between waiting laser range finder's laser outgoing position to the reflection assembly, a lift axle is installed to diaphragm one and diaphragm two's bottom an organic whole, and this lift axle wears to adorn in a lift cover, lift axle and lift cover adopt screw-thread fit.
Further, the second diaphragm is installed in the moving part.
Furthermore, the reflection assembly comprises three plane mirrors, the three plane mirrors are sequentially arranged into a first plane mirror, a second plane mirror and a third plane mirror according to the reflection sequence of the light path, the first plane mirror and the third plane mirror are arranged in the moving part side by side at intervals and symmetrically arranged in the moving part, the second plane mirror is arranged in the fixed part, the distance between the first plane mirror and the third plane mirror is 220mm, the reflection surfaces of the first plane mirror and the third plane mirror are mutually included angles, the included angles are obtuse angles, and the first plane mirror and the third plane mirror can swing in the horizontal plane to adjust the relative angles of the two plane mirrors.
Furthermore, the three plane mirrors are located at the same horizontal height, and the vertical plane where each plane mirror is located is perpendicular to the plane where the guide rail extends.
The utility model has the advantages that:
the utility model discloses in, built the indoor baseline of 200m through three level crossing, utilized the total powerstation to mark the baseline length, improved the light path adjustment precision altogether of distancer light path and total powerstation light path with the help of two diaphragms, improved and markd precision and efficiency, accomplished handheld laser range finder and surveyed the indicating value error verification work of section at 50 ~ 200 m. The receiving light intensity of the distance measuring instrument is reduced by reducing the aperture of the diaphragm, and the receiving light intensity of the total station is increased by adjusting the position relation between the target and the incident light, so that the problem that the distance measuring instrument and the total station cannot normally measure distance in part measuring sections is solved.
The utility model discloses studied an indoor virtual baseline measuring method based on light path is folding, shortened the indoor long distance measurement of big space to the short distance measurement in the little space, can be applied to the detection of hand-held type laser range finder in the full range under indoor environment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
1. The total station comprises a total station, 2 an adjusting platform, 3 a fixed part, 4 a laser range finder, 5 a diaphragm I, 6 a guide rail, 7 a diaphragm II, 8 a plane mirror I, 9 a moving part, 10 a plane mirror III, 11 a plane mirror II, 12 a reflector plate and 13 a reflection target
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
Hand-held type laser range finder is with indoor virtual baseline verification system, including the examination platform of a length to setting up, install guide rail 6 in the examination platform, the one end of this guide rail sets up to fixed part 3, and slide rail middle part slidable mounting has removal portion 9, the utility model discloses an innovation lies in, install adjustment platform 2 and reflection target 13 side by side along the width direction of examining the examination platform in the fixed part, wherein but the laser range finder 4 of treating is waited to the movable installation in the adjustment platform, laser range finder installs total powerstation 1 dorsad laser outgoing position one side, should total powerstation and laser range finder's light path is parallel, and the setting of light path altogether, install the removal subassembly in removal portion and the fixed part respectively, this removal subassembly can be with the light path of total powerstation and laser range finder's light path through quartic reflection to in the reflection target.
In this embodiment, the adjusting platform has a three-way adjusting function, and the structure thereof can adopt the following embodiments. The adjusting platform comprises a fixed platform, one end of the fixed platform is provided with a clamping device, the clamping device is used for fixing with one end of the detecting platform, a manual angular displacement platform is arranged in the fixed platform, a manual rotating platform is fixedly arranged above the manual angular displacement platform, a fixed seat is arranged above the manual rotating platform and comprises a bottom plate, the upper end surface of the bottom plate is arranged flatly, the plane of the base plate is parallel to the plane of the upper end surface of the verification platform, a reference plate is respectively and vertically arranged on one side of the base plate close to the verification platform and one side of the base plate back to the verification platform, a through hole is formed in the middle of the reference plate close to one side of the verification platform, the through hole is used for emitting laser of the laser range finder, a pressing device is arranged beside the bottom plate and used for pressing and fixing the laser range finder in the upper end surface of the bottom plate; the pressing device comprises lifting rods, the lifting rods are vertically installed beside the bottom plate at intervals, and the lifting plates are sleeved outside the lifting rods. Wherein the laser range finder to be detected is fixedly clamped in the fixing seat.
In this embodiment, the reflection target is fixed by a right-angle fixing block, is arranged perpendicular to the length direction of the track, and can be provided with an angular displacement table and a rotating table to adjust the pitch angle and the yaw angle.
In this embodiment, the length of the guide rail should be greater than 50 meters, and the adjustable maximum gap between the moving part and the fixed part in the guide rail should be not less than 50 meters.
In this embodiment, a reflective sheet 12 is bonded to the reflective surface of the reflective target.
In this embodiment, install diaphragm one 5 and diaphragm two 7 in order between waiting to examine laser range finder's laser outgoing position to reflection components, diaphragm one and diaphragm two's height-adjustable. The diaphragm bottom is installed a lift axle, and this lift axle wears to adorn in a lift cover, lift axle and lift cover adopt screw-thread fit.
In this embodiment, the second diaphragm is mounted in the moving portion.
In this embodiment, the reflection assembly includes three plane mirrors, the three plane mirrors are sequentially arranged as a first plane mirror 8, a second plane mirror 11 and a third plane mirror 10 according to the reflection order of the light path, the first plane mirror and the third plane mirror are symmetrically arranged in the moving part side by side at intervals, the second plane mirror is arranged in the fixed part, the distance between the first plane mirror and the third plane mirror is 220mm, the reflection surfaces of the first plane mirror and the third plane mirror form an included angle with each other, the included angle is an obtuse angle, and the first plane mirror and the third plane mirror can swing in the horizontal plane to adjust the relative angle of the two plane mirrors.
In this embodiment, the three plane mirrors are located at the same horizontal height, and a vertical plane on which each plane mirror is located is perpendicular to a plane on which the guide rail extends.
The utility model discloses a use is:
the utility model discloses during the use, use hand-held type laser rangefinder examine and determine system's examination method with indoor virtual baseline, including following step:
step 1: designing an optical path; step 2: collecting data; and step 3: a value indicating error verification scheme;
step 1.1, before verification, ensuring the perpendicularity of a second plane mirror and the motion direction of a guide rail as much as possible, and setting the transverse distance between the first plane mirror and the third plane mirror to be 220 mm;
step 1.2: locFor moving the position of the end, the included angle between the light lines zeta and l is related to the position of the calibrating pointocThe specific calculation method is shown in formula 1
Step 1.3: the second diaphragm in the moving part is used for ensuring the parallelism of the total station light path and the motion direction of the guide rail, and the common light path adjustment of the first diaphragm and the second diaphragm is realized through the first diaphragm and the second diaphragm on the premise that the heights of the laser range finder light path and the total station light path are consistent;
step 2: the laser range finder adopts a front reference measurement mode, and the total station firstly measures the front end surface of the laser range finder and the front end surface of the adjusting platformI.e. the distance L between the front reference surfaces of the laser rangefinders0fMoving the mobile terminal to a certain verification point, different onesocCorresponding to different zeta indexes, the yaw angles of the first plane mirror and the third plane mirror are required to be adjusted again at different verification points, and the positions of all elements are kept unchanged; the laser range finder indication L at the time is obtained at the corresponding verification pointmrAnd total station indication value LmtCalculating according to the formula 2 to obtain the length L of the standard base line corresponding to the verification points；
Ls＝Lmt-L0f (2)
And step 3: in the experimental process, the total station selects any surface measurement mode, and because the total station has higher requirement on light intensity in distance measurement, a reflector plate is adhered on the reflection target to measure the reference value L of the total station0fWhen the distance measuring device is used, the reflector plate is required to be pasted, and because the reflector plate is used in the two distance measuring processes, the additional optical path introduced by the reflector plate can be offset, and L cannot be influencedsCausing an impact; the light spot of the laser range finder also falls on the reflector plate, and the indication value of the light spot needs the thickness t of the reflector platereCorrecting, namely calculating the indicating value error delta of the laser range finder at a certain calibration point through a formula 3;
δ＝(Lmr+tre)-Ls＝(Lmr+tre)-(Lmt-Lof) (3)。
in step 2, when the distance is not long enough, the laser distance meter may display a 256 error, which indicates that the light intensity reflected by the reflector plate is too large, and the aperture of the second diaphragm can be properly reduced until the distance measurement requirement of the laser distance meter is met; when the distance is large, the total station may have a situation that distance measurement cannot be performed, the total station can firstly confirm that the heights of the two diaphragms are reduced to the minimum, the diaphragms are prevented from shielding the light of the total station, then the position of the light spot on the target is adjusted by adjusting the angle of the plane mirror III so as to change the position relation between the target and the incident light, or the angle of the target is slightly adjusted, and the received light intensity of the total station is increased by the two methods, so that normal distance measurement of the total station is ensured.
Furthermore, in step 3, the distance meter reads five times at the same verification pointIndication value Dk(k is 1, 2, 3, 4, 5), and the average value is taken to be LmrTotal station value LtfIs LmtAnd L0fThe difference is measured by a vernier caliper to obtain the thickness t of the reflectorreWhen the thickness was 0.4mm, δ was calculated according to formula 3.
The utility model discloses in, built the indoor baseline of 200m through three level crossing, utilized the total powerstation to mark the baseline length, improved the light path adjustment precision altogether of distancer light path and total powerstation light path with the help of two diaphragms, improved and markd precision and efficiency, accomplished handheld laser range finder and surveyed the indicating value error verification work of section at 50 ~ 200 m. The receiving light intensity of the distance measuring instrument is reduced by reducing the aperture of the diaphragm, and the receiving light intensity of the total station is increased by adjusting the position relation between the target and the incident light, so that the problem that the distance measuring instrument and the total station cannot normally measure distance in part measuring sections is solved.
The utility model discloses studied an indoor virtual baseline measuring method based on light path is folding, shortened the indoor long distance measurement of big space to the short distance measurement in the little space, can be applied to the detection of hand-held type laser range finder in the full range under indoor environment.
Claims (7)
1. Indoor virtual baseline verification system for hand-held type laser range finder, including a long examination platform to setting up, install the guide rail in the examination platform, the one end of this guide rail sets up to the fixed part, and slide rail middle part slidable mounting has removal portion, its characterized in that: install adjustment platform and reflection target side by side along the width direction of examination platform in the fixed part, wherein but the laser range finder that the inspection was waited to movable installation in the adjustment platform, a total powerstation is installed to laser range finder one side of emitting position dorsad the light path of total powerstation and laser range finder is parallel, and the setting of total powerstation and laser range finder is total to the light path, install the removal subassembly in removal portion and the fixed part respectively, this removal subassembly can be with the light path of total powerstation and laser range finder's light path in the quartic reflection target.
2. The indoor virtual baseline verification system for the handheld laser rangefinder of claim 1, wherein: and a reflecting sheet is adhered to the reflecting surface of the reflecting target.
3. The indoor virtual baseline verification system for the handheld laser rangefinder of claim 1, wherein: the reflection target is fixed through a right-angle fixing block and is arranged perpendicular to the length direction of the track.
4. The indoor virtual baseline verification system for the handheld laser rangefinder of claim 1, wherein: install diaphragm one and diaphragm two in order between waiting laser range finder's laser outgoing position to the reflection assembly, a lift axle is installed to diaphragm one and the bottom an organic whole of diaphragm two, and this lift axle wears to adorn in a lift cover, lift axle and lift cover adoption screw-thread fit.
5. The indoor virtual baseline verification system for the handheld laser rangefinder of claim 4, wherein: the second diaphragm is installed in the moving part.
6. The indoor virtual baseline verification system for the handheld laser rangefinder of claim 4, wherein: the reflection assembly comprises three plane mirrors, the three plane mirrors are sequentially arranged into a first plane mirror, a second plane mirror and a third plane mirror according to the reflection sequence of the light path, the first plane mirror and the third plane mirror are arranged in the moving part side by side at intervals and are symmetrically arranged in the moving part, the second plane mirror is arranged in the fixed part, the distance between the first plane mirror and the third plane mirror is 220mm, the reflection surfaces of the first plane mirror and the third plane mirror are included angles, the included angle is an obtuse angle, the first plane mirror and the third plane mirror can swing in the horizontal plane, and the relative angle of the two plane mirrors is adjusted.
7. The indoor virtual baseline verification system for the handheld laser rangefinder of claim 6, wherein: the three plane mirrors are positioned at the same horizontal height, and the vertical plane where each plane mirror is positioned is perpendicular to the plane where the guide rail extends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023039490.6U CN214333751U (en) | 2020-12-17 | 2020-12-17 | Indoor virtual baseline verification system for handheld laser range finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023039490.6U CN214333751U (en) | 2020-12-17 | 2020-12-17 | Indoor virtual baseline verification system for handheld laser range finder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214333751U true CN214333751U (en) | 2021-10-01 |
Family
ID=77900119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023039490.6U Active CN214333751U (en) | 2020-12-17 | 2020-12-17 | Indoor virtual baseline verification system for handheld laser range finder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214333751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729225A (en) * | 2020-12-17 | 2021-04-30 | 天津市计量监督检测科学研究院 | Indoor virtual baseline calibration device and calibration method thereof |
-
2020
- 2020-12-17 CN CN202023039490.6U patent/CN214333751U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112729225A (en) * | 2020-12-17 | 2021-04-30 | 天津市计量监督检测科学研究院 | Indoor virtual baseline calibration device and calibration method thereof |
| CN112729225B (en) * | 2020-12-17 | 2023-02-17 | 天津市计量监督检测科学研究院 | Indoor virtual baseline calibration device and calibration method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101718534B (en) | Parallelism detector for optical axis of multi-optical system | |
| CN101464163B (en) | Straightness detecting method for platform normal point used for total station instrument check | |
| CN105021211A (en) | Attitude testing apparatus and method based on autocollimator | |
| CN106515784B (en) | A kind of vehicle body of railway vehicle dimension measurement method | |
| CN214333751U (en) | Indoor virtual baseline verification system for handheld laser range finder | |
| CN201575793U (en) | Optical lever device with laser | |
| CN104037486A (en) | Antenna stand of anechoic chamber testing system of quasi single station | |
| CN100561197C (en) | Utilize laser feedback to determine the method and the application thereof of incident angle | |
| CN110530298A (en) | The passive type auto-collimation depth of parallelism calibrates platform and calibration system | |
| CN111238408A (en) | Device and method for rapidly measuring parallelism of parallel flat plate | |
| CN112817160B (en) | Method for assembling and adjusting optical imaging system | |
| CN106247998A (en) | A kind of laser axis and the calibration method of reflecting mirror normal parallel | |
| CN104581150B (en) | Positioning and error compensation method | |
| CN110567377B (en) | Pyramid prism length standard rod length measuring device and measuring method thereof | |
| CN204479187U (en) | Based on the collimated light beam detector of two pentaprism | |
| CN110186654B (en) | Longitudinal resolution testing device | |
| CN107436131A (en) | The measurement of planeness system and its measuring method of a kind of laser alignment equipment | |
| CN112729225B (en) | Indoor virtual baseline calibration device and calibration method thereof | |
| CN111427053A (en) | Precise distance measuring device and method based on array mirror calibration | |
| CN105526950A (en) | Calibration detection device for optical sighting | |
| CN207946107U (en) | A kind of hand-held laser rangefinder calibrating multiple degrees of freedom adjustment holder | |
| CN214583311U (en) | Consistency calibrating device for various measuring reference surfaces of handheld laser range finder | |
| CN212569146U (en) | Accurate range unit based on array mirror is markd | |
| CN111521997B (en) | Verification system of handheld laser range finder | |
| CN108645338A (en) | Signalling means self-calibrating method and device under vacuum based on PSD |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |