CN102283653B - Measurement device based on laser distance measurement and measurement method thereof - Google Patents
Measurement device based on laser distance measurement and measurement method thereof Download PDFInfo
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- CN102283653B CN102283653B CN 201110127740 CN201110127740A CN102283653B CN 102283653 B CN102283653 B CN 102283653B CN 201110127740 CN201110127740 CN 201110127740 CN 201110127740 A CN201110127740 A CN 201110127740A CN 102283653 B CN102283653 B CN 102283653B
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Abstract
The invention discloses a measurement device based on laser distance measurement and a measurement method thereof. The measurement device comprises a camera, a base for placing the camera, a laser base and a laser head. The length and the height value of an object to be measured can be calculated by locking an animal or a building at a distance through laser, leaving laser spots on a picture, calculating the ratio of the distance between practical laser heads to the distance between corresponding laser spots on the picture and obtaining the proportion of a real object to the object in the picture. According to the device and the method disclosed by the invention, the structure is simple; the method is not influenced by the size and the distance of the object to be measured; the calculation process is convenient; in particular, the method is convenient and rapid for a movable and large-area object to be measured; and the working efficiency is greatly increased.
Description
Technical field
The present invention relates to the laser ranging technique field, particularly relate to a kind of measuring device based on laser ranging and measuring method thereof.
Background technology
The wild animal scholar except will fully understanding the habit of wild animal, needs to know the shape size of wild animal, sometimes to its further research when wild animal is studied.Some distance-finding methods in our daily life can't be measured the animal in the motion, need the method for a telemeasurement animal length, height.
Along with the development of optical technology, people have had increasing research to optical characteristics, and optical technology also is applied to every field.Wherein typical the application carried out measuring distance with regard to favourable with optical signature.Laser has features such as high brightness, high directivity, high monochromaticity and high coherence, has improved measuring accuracy greatly.Laser ranging is widely used in stationary object measurement on the traditional sense, but also can't solve the difficulty in the remote kinetic measurement of wild animal.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of measuring device based on laser ranging and measuring method thereof are provided, utilize laser that the outer animal of certain distance or building are locked and stay laser point at photo, ratio by the distance between the corresponding laser point on the distance between the calculating practical laser head and the photo, draw the ratio of object in kind and the photo, thereby calculate length and the height value of object under test.
Technical solution of the present invention is as follows:
A kind of measuring device based on laser ranging, be characterized in comprising camera, a base that is used for placing this camera, the left and right sides is respectively equipped with laser bench on this base, respectively is provided with the laser head of a pair of vertical direction on the position of the homonymy equal height of these two laser bench.LASER Light Source is arranged in order to launch laser beam in the laser head.The laser beam that the laser head of the left and right sides is launched is transverse beam, be used for to measure length, and the laser beam launched of two laser heads is vertical bundle up and down, is used for measuring height, and the distance between the practical laser head is fixed value.
The left and right sides is respectively equipped with many rows adjustable port parallel to each other on the described base, and the corresponding position of the adjustable port on described laser bench bottom and described base is provided with through hole, makes suitably left and right adjusting of two distances between the laser bench.
Described base middle part is provided with two-way screw, this two-way screw be connected with fixing head to top, camera is fixed on the base reposefully, be convenient to better fixed angle and take pictures, can make to the lower part base and the spider of two-way screw are fixed.The mid portion of two-way screw is used for regulating in the same way the degree of tightness of two head screws for the screw dish.
The measuring method of described measuring device based on laser ranging comprises the steps:
1. described camera is fixedly mounted on the described base, and measures distance and the distance between two laser heads up and down between the laser head of the described left and right sides;
2. open switch, allow described laser head launch laser beam, make laser beam irradiation back reflection on object under test;
3. this object under test is taken a picture;
4. measure in the photo laterally in the distance between the laser point and photo the vertically distance between the laser point;
5. calculate length and the height of object under test:
Wherein: L is length or the height of object under test, l is length or the height of object under test in the photo, and D is distance or the distance between two laser heads up and down between the laser head of the left and right sides, and d is the horizontal vertical distance between the laser point in the distance between the laser point or the photo in the photo.
Design principle of the present invention is the ratio that the ratio of the distance of laser point on distance and the photo that utilizes between the practical laser bundle is extrapolated object in kind and the photo, thereby calculates physical length and the height value of object under test.
Compared with prior art, technique effect of the present invention is by utilizing laser the outer animal of certain distance to be locked and stays at photo the characteristics of the laser point marking, calculate the length of actual animal, highly, and then extrapolate animal local area volume, play and neither alarm animal, do not influence the effect of measurement result yet, convenient and swift, improved work efficiency.
Description of drawings
Fig. 1 is the structural representation that the present invention is based on the measuring device of laser ranging.
Fig. 2 the present invention is based on parts blast structure chart in the measuring device of laser ranging.
Fig. 3 the present invention is based on the sketch map that the laser head position is adjusted in the measuring device of laser ranging.
Fig. 4 is the principle schematic that the present invention is based on the measuring device of laser ranging, and wherein MNPQ is the photo of taking, and ABCD is four laser point on this photo.
The specific embodiment
The invention will be further described below in conjunction with embodiment and accompanying drawing, but should not limit protection scope of the present invention with this.
Please consult Fig. 1 and Fig. 2 earlier, Fig. 1 is the structural representation that the present invention is based on the measuring device of laser ranging, and Fig. 2 the present invention is based on parts blast structure chart in the measuring device of laser ranging.As shown in the figure, a kind of measuring device based on laser ranging, be characterized in comprising camera, a base 1 that is used for placing this camera, the left and right sides is respectively equipped with laser bench 2 on this base 1, respectively is provided with the laser head 3 of a pair of vertical direction on the position of the homonymy equal height of these two laser bench 2.The left and right sides is respectively equipped with many rows adjustable port 6 parallel to each other on the described base 1, and the corresponding position of the adjustable port 6 on described laser bench 2 bottoms and described base 1 is provided with through hole 7.Described base 1 middle part is provided with two-way screw 5, this two-way screw 5 be connected with fixing head to top, base 1 and spider are fixed.
Fig. 3 the present invention is based on the sketch map that the laser head position is adjusted in the measuring device of laser ranging, and laser bench 2 utilizes screw to be fixed on the left and right sides of base 1 by the adjustable port 6 on its through hole 7 and the base 1 among the figure.In order fully to show the adjustable of laser bench 2 positions among the present invention, in order to adapting to the camera of different size, in Fig. 3 with about two laser bench 2 be separately fixed at its opposite position in Fig. 1 and Fig. 2 on.
Fig. 4 is the principle schematic that the present invention is based on the measuring device of laser ranging, also is the embodiment of the invention, and wherein MNPQ is the photo of taking, and ABCD is four laser point on this photo.As shown in the figure, the measuring method based on the measuring device of laser ranging comprises the steps:
1. described camera is fixedly mounted on the described base 1, and measures distance and the distance between two laser heads 3 up and down between the laser head 3 of the described left and right sides;
2. open switch, allow described laser head 3 launch laser beam, make laser beam irradiation back reflection on object under test;
3. this object under test is taken a picture;
4. measure in the photo laterally in the distance between the laser point and photo the vertically distance between the laser point;
5. calculate length and the height of object under test:
, wherein:
Be length or the height of object under test,
Be length or the height of object under test in the photo,
Be the distance between the laser head of the left and right sides (distance between the EF) or the distance (distance between the EG) between two laser heads up and down,
Be the distance (distance between the AC) between vertical laser point in the distance (distance between the AB) between the horizontal laser point or the photo in the photo.
Experiment shows that the present invention has simple in structure, is not subjected to the influence of object under test size, distance, and the characteristics of convenience of calculation are particularly convenient and swift to object under test activity, that area is big, improved work efficiency greatly.
Claims (2)
1. measuring device based on laser ranging, it is characterized in that, comprise camera, a base (1) that is used for placing this camera, on this base (1), each side be provided with a laser bench (2), respectively be provided with the laser head (3) of a pair of vertical direction on the position of the homonymy equal height of these two laser bench (2), described base (1) is gone up the left and right sides and is respectively equipped with many rows adjustable port (6) parallel to each other, and the corresponding position of the adjustable port (6) on described laser bench (2) bottom and described base (1) is provided with through hole (7).
2. the measuring device based on laser ranging according to claim 1 is characterized in that, described base (1) middle part is provided with two-way screw (5), this two-way screw (5) be connected with fixing head to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110127740 CN102283653B (en) | 2011-05-18 | 2011-05-18 | Measurement device based on laser distance measurement and measurement method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110127740 CN102283653B (en) | 2011-05-18 | 2011-05-18 | Measurement device based on laser distance measurement and measurement method thereof |
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| Publication Number | Publication Date |
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| CN102283653A CN102283653A (en) | 2011-12-21 |
| CN102283653B true CN102283653B (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110127740 Expired - Fee Related CN102283653B (en) | 2011-05-18 | 2011-05-18 | Measurement device based on laser distance measurement and measurement method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217144B (en) * | 2013-04-10 | 2015-03-18 | 广东欧珀移动通信有限公司 | Method and device for monitoring height of building and distance between buildings |
| CN105510923A (en) * | 2014-09-25 | 2016-04-20 | 捷瑞企业股份有限公司 | Bidirectional laser range finder |
| US9726760B2 (en) | 2014-10-24 | 2017-08-08 | Trison Global Company Limited | Dual-directional laser rangefinder |
| CN205333004U (en) * | 2015-08-06 | 2016-06-22 | 大理大学 | Multi -functional object measuring apparatu |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO164946C (en) * | 1988-04-12 | 1990-11-28 | Metronor As | OPTO-ELECTRONIC SYSTEM FOR EXACTLY MEASURING A FLAT GEOMETRY. |
| CN102346011A (en) * | 2010-07-29 | 2012-02-08 | 上海通用汽车有限公司 | Measuring tools and measuring methods |
| CN202078315U (en) * | 2011-05-18 | 2011-12-21 | 上海理工大学 | Device for measuring article size |
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