CN101021411A - Laser arch metering method and laser arch meter - Google Patents
Laser arch metering method and laser arch meter Download PDFInfo
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- CN101021411A CN101021411A CN 200710010605 CN200710010605A CN101021411A CN 101021411 A CN101021411 A CN 101021411A CN 200710010605 CN200710010605 CN 200710010605 CN 200710010605 A CN200710010605 A CN 200710010605A CN 101021411 A CN101021411 A CN 101021411A
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Abstract
The invention relates to a camber admeasuring apparatus and a laser camber measuring method. After level gauge providing a level baseline, lighting target of data collector gathers its facula and sends the facula image to computer processing system. Based on the image, the computer calculates the vertical ordinate D of baseline on lighting target, data collector measures longitudinal separation H between measured point and itself simultaneously and sends it to the computer. Then the computer calculates longitudinal separation between measured point and level baseline. The invention adopts laser to measure intelligently, level gauge to provide baseline and high precision, data collector to complete laser ranging. Thus, camber admeasuring of lower flange can be completed on the ground. Computer deals with data directly to avoid manual interpretation, which achieves high accuracy, high efficiency and simple operation.
Description
Technical field:
The present invention relates to the camber measuring instrument, particularly the laser arch measurer.
Background technology:
Measuring the beam arm camber of main equipment at present measures, as the electric single-beam of crane and girder etc., mainly be to utilize special-purpose arch measurer to measure (drawing the steel wire mensuration), adopt measuring of wire rope and tape measure or spirit-leveling instrument and tape measure, manually align during measurement, the human eye interpretation, and because the downwarp that the deadweight of steel wire causes, this method must be considered modified value, cumbersome, and it is many to measure intermediate link, and it is bigger influenced by human factor, not only need to climb but also make data have certain subjectivity, precision is lower.
Summary of the invention:
The objective of the invention is to overcome above-mentioned not enough problem, a kind of Laser Measuring arch method is provided, method is simple, precision height, efficiency of measurement height.The laser arch measurer also is provided in addition, simple in structure, Intelligent Measurement, intensity is low, and is easy to operate, the precision height.
The technical scheme that the present invention is adopted for achieving the above object is: Laser Measuring arch method, earlier provide a horizontal datum by spirit-leveling instrument, the light target of data acquisition unit is gathered the hot spot of this datum line, and give computer processing system light spot image, computing machine calculates the ordinate of horizontal datum on light target according to light spot image; The fore-and-aft distance between data acquisition unit measurement data acquisition device and the measured point simultaneously, and give computing machine these data, computer system provides the fore-and-aft distance of measured point and horizontal datum through computing.
Described each measuring point has all been surveyed the back computing machine and has been provided the measurement curve of whole measurand according to the data of each measuring point, and calculates the measurand relevant parameters, generates examining report, and report can be stored and print.
Laser arch measurer of the present invention is made up of spirit-leveling instrument, data acquisition unit and computer processing system, spirit-leveling instrument is the Laser Beam Auto-Level instrument, light target and stadimeter are housed on the base of data acquisition unit, and data acquisition unit links to each other with computer processing system with the control data line by the picture transmission line.
Described data acquisition unit comprises reception light target, stadimeter, base and battery case, light target is housed on the base, stadimeter is equipped with on light target top, light target comprises target surface, bubble and pictorial data line interface and internal optics system, be equipped with on the stadimeter Laser emission and reception optical system, power switch, power interface and with the control data line interface of compunication.
Described internal optics system comprises optical filter, cone, imaging surface, camera, and the imaging surface front end is equipped with optical filter, between optical filter and the imaging surface cone is housed, and camera is equipped with in the imaging surface rear end, and camera connects data line interface by lead.
Described optical filter is a bandpass filter, stops bias light to pass through, only allow one of spirit-leveling instrument laser beam among a small circle the laser of wavelength pass through.
Described camera is CCD or CMOS camera, is used to gather light spot image.
Described battery case has a power supply output lead plug, and terminal pin links to each other with the power interface of stadimeter.
Described base interface is the thread bush structure, and the base interface is threaded with light target.
Described base is that the bottom surface is the base on plane or the tripod interface pedestal that the bottom surface has locating convex block.
The present invention compares with similar measuring method has outstanding feature: adopt laser to carry out intelligent measuring, spirit-leveling instrument provides datum line, high precision, finish laser ranging by data acquisition unit again, the camber that both can finish the bottom wing listrium on the ground detects, and data are avoided artificial interpretation directly by computer system processor, the accuracy height, the efficient height.Present device is simple to operation, and spirit-leveling instrument is the Laser emission part, and the laser facula that sends is a ring-type; Data acquisition unit is finished the reception (hot spot image acquisition) and the laser ranging task of ring-type hot spot, the image and the range data that will collect by picture transmission line and control data line given computing machine simultaneously, computing machine is finished the task of data processing and data analysis, provides measurement result simultaneously.Obtain measurement data by stadimeter reading and two kinds of methods of computer image analysis, avoided man's activity, the measuring accuracy of this method also improves greatly simultaneously.
Description of drawings:
Fig. 1 is a system architecture synoptic diagram of the present invention.
Fig. 2 is the data acquisition unit structural representation.
Fig. 3 is a data acquisition unit interior lights target structure synoptic diagram.
Fig. 4 is measuring principle figure.
Fig. 5 is the computer processing system flow chart.
Embodiment:
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing:
Laser arch measurer as shown in Figure 1, form by spirit-leveling instrument 6, data acquisition unit 4 and computer processing system 1, spirit-leveling instrument is the Laser Beam Auto-Level instrument, data acquisition unit is that light target 8 and stadimeter 14 are housed on the base 7, and data acquisition unit links to each other with computer processing system with control data line 2 by picture transmission line 3.Wherein data acquisition unit comprises reception light target 8 as shown in Figure 2, stadimeter 14, base 7 and battery case 17, the base interface is the thread bush structure, the base interface is threaded with light target, light target promptly is contained on the base, stadimeter is equipped with on light target top, light target comprises target surface protecting cover 9 as shown in Figure 3, bubble 15 and pictorial data line interface 16 and internal optics system, the internal optics system comprises optical filter 21, cone 18, imaging surface 20, camera 19, the imaging surface front end is equipped with optical filter, between optical filter and the imaging surface cone is housed, camera is equipped with in the imaging surface rear end, and camera connects data line interface by lead; Optical filter is a bandpass filter, stops bias light to pass through, only allow one of spirit-leveling instrument laser beam among a small circle the laser of wavelength pass through; Camera is that CCD camera or CMOS camera are used to gather light spot image.Be equipped with on the stadimeter Laser emission and reception optical system 13, power switch 12, power interface 11 and with the communication control data line interface 10 of compunication, battery case has a power supply output lead plug, and terminal pin links to each other with the power interface of stadimeter.
Described data acquisition unit base 7 is used to detect camber for the base that the bottom surface is the plane, and perhaps the bottom surface has tripod 5 interface pedestal of locating convex block, changes when detecting camber to get final product.
Adopt as shown in Figure 1 laser arch measurer detection laser horizontal datum and the fore-and-aft distance (highly) of measuring point, instrument is measured below measurand 22, and fore-and-aft distance (highly) is made up of two parts data: the fore-and-aft distance of stadimeter and measured point and laser facula along slope coordinate on light target.
Measuring principle is shown in Fig. 4,5.At first spirit-leveling instrument provides a high level of accuracy datum line, its light spot image is the ring palisade, the light target of data acquisition unit is gathered the hot spot of this datum line, and gives computing machine light spot image, and computing machine calculates the ordinate D of spot center on light target according to light spot image; The distance H of stadia surveying data acquisition unit and measured point simultaneously, and give computing machine these data, computing machine provides the fore-and-aft distance of measured point and horizontal datum to D and H addition.Each measuring point has all been surveyed the back computing machine and has been provided the measurement curve of whole measurand according to the data of each measuring point, and calculates the measurand relevant parameters, generates examining report, and report can be stored and print.
Sometimes will measure at the measurand upper surface in the actual measurement process, such as detect camber on top flange plate, this detection is simpler than measuring below measurand, as long as the ordinate D of spot center on light target is just passable.
Be the measure portion source program below:
procedure?redtoarray(path:string)；
var
i，x，y: integer；
stream: Tmemorystream；
rgb: array[0..PICW*PICH-1+18]of?Trgb；
begin
Stream?:＝TMemoryStream.Create；
stream.LoadFromFile(path)；
stream.Position:＝0；
stream.Read(rgb，sizeof(rgb))；
stream.Free；
for?i:＝18?to?PICW*PICH+17?do
begin
x:＝(i-18)MOD?PICW；
y:＝(i-18)div?PICW；
imag0[PICH-y，x+1]:＝rgb[i].r；
end；
end；
function?tuxiangchuli_lingfa_0802(path:string):Tpoint；
var
ban_pan，lvbol_pan_old:byte；
i，j，t，result_flag: integer；
imag1_light_max，imag1_light_min，yuzhi_3:single；
succflag，i_chushi，i_lvbo:integer；
gs:Tgs；
pt:array[1..500]of?Tpoint；
tmp，yz:single；
minv:single；
minx:integer；
break_flag:boolean；
begin
break_flag:＝false；
setlength(imag0，PICH+1，PICW+1)；
setlength(imag1，PICH+1，PICW+1)；
fangcha_L:＝0.001；
yuzhi:＝10；
chshi.x:＝0；
chshi.y:＝0；
Step:=2; // %%%%%%%% step-length
bmptoarray(path)；
Lvbol_pan:=4; // % filtering dish size
Ban_pan:=3; // %%% spot is handled filtering dish size
Lvbol_pan_old:=lvbol_pan; // %%%%%%%% storing initial filtering dish recovers initial value for the back iteration and prepares;
Lvbol_yuan_diedai (lvbol_pan); //; %%% filtering
for?i:＝1?to?PICH-lvbol_pan+1?do
begin
for?j:＝1?to?PICW-lvbol_pan+1?do
begin
if?imag1[i，j]＞＝imag1_light_max?then
imag1_l?ight_max:＝imag1[i，j]；
if?imag1[i，j]＜＝imag1_light_min?then
imag1_light_min:＝imag1[i，j]；
end；
end；。
Claims (10)
1, Laser Measuring arch method, it is characterized in that: provide a horizontal datum by spirit-leveling instrument earlier, the light target of data acquisition unit is gathered the hot spot of this datum line, and gives computer processing system light spot image, and computing machine calculates the ordinate (D) of horizontal datum on light target according to light spot image; The distance (H) between data acquisition unit measurement data acquisition device and the measured point simultaneously, and give computing machine these data, computer system provides the fore-and-aft distance of measured point and horizontal datum through computing.
2, Laser Measuring arch method according to claim 1, it is characterized in that: each measuring point has all been surveyed the back computing machine provides whole measurand according to the data of each measuring point measurement curve, and calculate the measurand relevant parameters, and generating examining report, report can be stored and print.
3, laser arch measurer, it is characterized in that: it is made up of spirit-leveling instrument (6), data acquisition unit (4) and computer processing system (1), spirit-leveling instrument is the Laser Beam Auto-Level instrument, data acquisition unit is that light target (8) and stadimeter (14) are housed on the base (7), and data acquisition unit links to each other with computer processing system with control data line (2) by picture transmission line (3).
4, laser arch measurer according to claim 3, it is characterized in that: data acquisition unit (4) comprises reception light target (8), stadimeter (14), base (7) and battery case (17), light target is housed on the base, stadimeter is equipped with on light target top, light target comprises target surface protecting cover (9), bubble (15) and pictorial data line interface (16) and internal optics system, be equipped with on the stadimeter Laser emission and reception optical system (13), power switch (12), power interface (11) and with the control data line interface (10) of compunication.
5, laser arch measurer according to claim 4, it is characterized in that: the internal optics system comprises optical filter (21), cone (19), imaging surface (20), camera (19), the imaging surface front end is equipped with optical filter, between optical filter and the imaging surface cone is housed, camera is equipped with in the imaging surface rear end, and camera connects data line interface (16) by lead.
6, laser arch measurer according to claim 4 is characterized in that: optical filter (21) is a bandpass filter, stops bias light to pass through, only allow one of spirit-leveling instrument laser beam among a small circle the laser of wavelength pass through.
7, laser arch measurer according to claim 4 is characterized in that: camera (19) is CCD camera or CMOS camera.
8, laser arch measurer according to claim 3 is characterized in that: battery case (17) has a power supply output lead plug, and terminal pin links to each other with the power interface of stadimeter.
9, laser arch measurer according to claim 3 is characterized in that: data acquisition unit (4) base interface is the thread bush structure, and base is threaded with light target.
10, laser arch measurer according to claim 3 is characterized in that: data acquisition unit base (7) is the base on plane or tripod (5) interface pedestal that the bottom surface has locating convex block for the bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710010605 CN101021411A (en) | 2007-03-14 | 2007-03-14 | Laser arch metering method and laser arch meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710010605 CN101021411A (en) | 2007-03-14 | 2007-03-14 | Laser arch metering method and laser arch meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101021411A true CN101021411A (en) | 2007-08-22 |
Family
ID=38709249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710010605 Pending CN101021411A (en) | 2007-03-14 | 2007-03-14 | Laser arch metering method and laser arch meter |
Country Status (1)
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|---|---|
| CN (1) | CN101021411A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278972A (en) * | 2011-06-03 | 2011-12-14 | 大连理工大学 | Digital laser range finder capable of video capture |
| CN104838233A (en) * | 2012-12-05 | 2015-08-12 | 莱卡地球系统公开股份有限公司 | Laser beam horizontal trueness testing device and corresponding method |
| CN108072325A (en) * | 2017-12-30 | 2018-05-25 | 浙江维思无线网络技术有限公司 | A kind of object space determines method and device |
| CN108072326A (en) * | 2017-12-30 | 2018-05-25 | 浙江维思无线网络技术有限公司 | A kind of method and device for observing light beam irradiation |
| CN108089195A (en) * | 2017-12-30 | 2018-05-29 | 浙江维思无线网络技术有限公司 | A kind of object position estimation method and device |
| CN108088375A (en) * | 2017-12-30 | 2018-05-29 | 浙江维思无线网络技术有限公司 | A kind of object relative position detection light beam method of reseptance and device |
| CN108472706A (en) * | 2015-12-28 | 2018-08-31 | 川崎重工业株式会社 | Deformation processing supports system and deformation processing to support method |
-
2007
- 2007-03-14 CN CN 200710010605 patent/CN101021411A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278972A (en) * | 2011-06-03 | 2011-12-14 | 大连理工大学 | Digital laser range finder capable of video capture |
| CN104838233A (en) * | 2012-12-05 | 2015-08-12 | 莱卡地球系统公开股份有限公司 | Laser beam horizontal trueness testing device and corresponding method |
| US9644960B2 (en) | 2012-12-05 | 2017-05-09 | Leica Geosystems Ag | Laser beam horizontal trueness testing device and corresponding method |
| CN104838233B (en) * | 2012-12-05 | 2017-10-20 | 莱卡地球系统公开股份有限公司 | Laser beam horizontal accuracy test device and corresponding method |
| CN108472706B (en) * | 2015-12-28 | 2020-06-30 | 川崎重工业株式会社 | Deformation processing support system and deformation processing support method |
| CN108472706A (en) * | 2015-12-28 | 2018-08-31 | 川崎重工业株式会社 | Deformation processing supports system and deformation processing to support method |
| CN108072326A (en) * | 2017-12-30 | 2018-05-25 | 浙江维思无线网络技术有限公司 | A kind of method and device for observing light beam irradiation |
| CN108089195A (en) * | 2017-12-30 | 2018-05-29 | 浙江维思无线网络技术有限公司 | A kind of object position estimation method and device |
| CN108088375A (en) * | 2017-12-30 | 2018-05-29 | 浙江维思无线网络技术有限公司 | A kind of object relative position detection light beam method of reseptance and device |
| CN108072325A (en) * | 2017-12-30 | 2018-05-25 | 浙江维思无线网络技术有限公司 | A kind of object space determines method and device |
| CN108088375B (en) * | 2017-12-30 | 2021-02-09 | 浙江维思无线网络技术有限公司 | Method and device for receiving object relative position detection light beam |
| CN108072325B (en) * | 2017-12-30 | 2021-02-09 | 浙江维思无线网络技术有限公司 | Object position determining method and device |
| CN108072326B (en) * | 2017-12-30 | 2021-04-16 | 浙江维思无线网络技术有限公司 | Method and device for observing light beam irradiation |
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