CN210719130U

CN210719130U - Portable two-point laser range finder

Info

Publication number: CN210719130U
Application number: CN201922185893.2U
Authority: CN
Inventors: 卫洪涛; 武佳斌; 马竞
Original assignee: Zhengzhou University
Current assignee: Zhengzhou University
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-06-09
Anticipated expiration: 2029-12-09

Abstract

The utility model discloses a portable two laser range finder, its structure includes two laser range finders and connects the corner device at the laser range finder tail end. The utility model discloses an adjust the corner device and change contained angle between two connecting plates and make two laser range finders shoot the laser and reach the target point to reach the arbitrary purpose at two points in measurement space, be particularly useful for the higher measuring point in position.

Description

Portable two-point laser range finder

Technical Field

The utility model relates to a long-range two point distance measuring device, especially can measure the laser range finder of the arbitrary distance between two points in space.

Background

At present, the distance between two points in social production is usually realized by using traditional measuring tools such as a measuring tape, but in places where workers cannot reach, such as measuring points with higher positions, the adoption of the measuring tape brings great inconvenience.

The common laser distance measuring instrument can only measure the distance between the position of a worker and a remote point, and cannot measure the distance between two points far away from the position of the worker.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of traditional measuring tool, the utility model discloses a connect two adjustable contained angle laser range finding sensors at angle sensor to reach the purpose of measuring two arbitrary points, be particularly useful for the distance between two points of higher position.

The utility model provides a technical scheme that its technical problem adopted is a laser rangefinder, include two laser rangefinders and connect the corner device at the laser rangefinder tail end.

As the utility model discloses a preferred technical scheme, its corner device includes two connecting plates and connects the angle sensor in connecting plate one end, and the contained angle is 150 in the middle of the connecting plate, and one of them connecting plate links firmly with angle sensor, and another connecting plate passes the angle sensor pivot, rotates the transmission angle along with the pivot and changes.

As the utility model discloses an optimal scheme, its structure still includes a singlechip, angle sensor and two laser range finders are connected on the singlechip, and the screen display is connected to the singlechip.

The beneficial effect of adopting the above preferred scheme is: the utility model adjusts the included angle of the two laser distance measuring instruments through the corner device to enable the included angle to reach the target measuring point, thereby realizing the function of measuring the distance between any two points and being suitable for the requirement of high-altitude object measurement; its corner device makes the utility model discloses at initial zero setting position laser range finder free of contained angle, make the device structure simplify.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a front view of the present invention.

Fig. 2 is a view of the present invention with an opening angle of γ °.

In the figure: 1. laser range finder 2, connecting plate A3, connecting plate B4, rotating shaft 5, angle sensor 6, first target point 7 and second target point

Detailed Description

Referring to fig. 1, the present invention includes two laser range finders 1 and a corner device connected to the tail end of the laser range finder 1. Corner device includes pivot 4, middle contained angle and is 150 connecting plate A2 and connecting plate B3, connecting plate B3 links firmly with angle sensor 5, connecting plate A2 is connected with angle sensor through pivot 4, the structure of corner device makes the utility model discloses there is not the contained angle at initial position laser range finder.

The structure of the device also comprises a single chip microcomputer, wherein the angle sensor 5 and the two laser range finders 1 are connected to the single chip microcomputer, and the single chip microcomputer is connected with an external display device. The single chip microcomputer processes data from the angle sensor 5 and the two laser range finders 1 to obtain the distance between the two points, and the measurement result is displayed through the external display device.

The utility model discloses a theory of operation is: the connecting plate A and the connecting plate B are parallel at the initial position, no included angle exists between the two laser range finders 1, the included angle between the connecting plate A and the connecting plate B is adjusted, laser emitted by the two laser range finders 1 respectively irradiate a first target point 6 and a second target point 7 of a distance to be measured, an angle sensor 5 positioned at a rotating shaft measures the included angle of the laser emitted by the two laser range finders 1, and then the distance between the first target point and the second target point can be calculated according to a derivation formula.

Specifically, as shown in fig. 2, the laser range finder 1 has a length a, the connection board a and the connection board B have the same specification, the length of the upper half is B, the length of the lower half is c, the two laser range finders measure the distances d1 and d2 to the first target point and the second target point respectively, the angle sensor measures the angle γ degree rotated by the rotating shaft, the distance between the first target point and the second target point is L, the parameter h is introduced, and according to the derivation formula:

h＝[c(sin(300°-γ°)/2)]/sin(γ°/2)

L²＝(h+a+b+d1)²+(h+a+b+d2)²-2(h+a+b+d1)(h+a+b+d2)cosγ

calculating the value of L

The utility model discloses a singlechip can the automatic calculation and show the interval of first target point 6 and second target point 7 on display device.

The above description is only given as an enabling solution for the present invention and not as a single limitation on the solution itself.

Claims

1. A laser rangefinder which characterized in that: comprises two laser range finders and a corner device connected at the tail ends of the laser range finders.

2. The laser ranging device as claimed in claim 1, wherein: the corner device comprises two connecting plates with included angles of 150 degrees and a rotating shaft, the connecting plate B3 is fixedly connected with an angle sensor, the connecting plate A2 is connected with the angle sensor through the rotating shaft, and the laser range finder is connected at the tail ends of the two connecting plates.

3. The laser ranging device as claimed in claim 1, wherein: the structure of corner device makes the utility model discloses do not have the contained angle at initial position laser range finder.

4. A laser ranging device as claimed in any of claims 2-3 wherein: still include the singlechip in the structure, two laser range finders and angle sensor all are connected to the singlechip, the external display device of singlechip.

5. The laser ranging device as claimed in claim 4, wherein: the working principle of the single chip microcomputer is as follows according to a derivation formula:

h＝[c(sin(300°-γ°)/2)]/sin(γ°/2)

L²＝(h+a+b+d1)²+(h+a+b+d2)²-2(h+a+b+d1)(h+a+b+d2)cosγ。