KR102259890B1 - Apparatus using laser pointers for length estimation - Google Patents

Abstract

The present invention provides a length estimation device using a laser pointer, comprising: a laser pointer module including at least a first pointer and a second pointer having a light emitting part to irradiate a laser to a target; a hinge portion to which one end of each of the first and second pointers is rotatably coupled; and an adjusting unit adjusting an angle between the first and second pointers so that an interval distance between each pointing point pointed to by the first and second pointers maintains a set unit distance regardless of a change in the distance between the light emitting part and the target.

Description

Apparatus using laser pointers for length estimation

The present invention relates to a length estimating apparatus using a laser pointer, and to a length estimating apparatus using a laser pointer that can roughly measure the length of an object in a short distance or a long distance using a laser pointer module.

In general, when cracks occur in structures such as load-bearing walls, columns, or slabs, to measure the length of the cracks, measure them one by one using a tape measure or a straight ruler, and then sum them to calculate the total length of the crack. Alternatively, the method of measuring the shortest distance from the start point of the crack to the end point is also applied.

In addition to the method of directly measuring the length of such cracks, an imaging system for safety diagnosis of vertical structures using a camera is also being developed.

However, this crack measuring method or imaging system may not be able to measure depending on the distance or location, and even if possible, the measurement may be located in a dangerous part, which leads to a problem that leads to a safety accident.

In addition, even if the imaging system is used, since the imaging equipment must be driven by manpower along the surface of the vertical structure, safety accidents occur even in the process of installing the system before imaging.

Korean Patent Publication No. 10-2000-0038765 (200.07.05)

The present invention is to solve such a problem, and more specifically, by irradiating at least two pointing points having a set unit distance using a laser pointer module in a situation in which the correct length or size cannot be confirmed close to the target, An object of the present invention is to provide a length estimation apparatus using a laser pointer capable of estimating the length or size of an object by comparing the distance and the object.

In addition, the present invention uses a laser pointer capable of adjusting the angle between the laser pointers so that the distance between the pointing points pointed to by the laser pointer is maintained at a set unit distance regardless of the change in the distance between the light output part and the target of the laser pointer module. An object of the present invention is to provide a length estimation device.

The present invention for performing the above object is a laser pointer module including at least a first pointer and a second pointer having a light output unit so as to irradiate a laser to the object; a hinge portion to which one end of each of the first and second pointers is rotatably coupled; and adjusting the angle between the first and second pointers so that the interval distance between each pointing point pointed to by the first and second pointers maintains a set unit distance regardless of a change in the distance between the light exiting part and the target. It provides a length estimating device using a laser pointer, characterized in that it comprises a;

The adjusting unit includes a slider interposed between the first and second pointers to change an angle between the first and second pointers by slidingly moving from the other end to one end of the laser pointer module, wherein the sliders include the first and second pointers. It may be formed in a shape corresponding to the outer surface of the.

The laser pointer module may include a ruler formed on the outer surface along a direction from the other end of the first pointer or the second pointer to one end so that the unit distance is maintained regardless of the distance between the light emitting part and the target.

The adjusting unit moves toward one end of the laser pointer module to increase the angle between the light exiting part and the target when the distance between the light exiting part and the target is short, and when the distance between the light exiting part and the target is relatively long, the angle between the laser pointer module is small. so as to move in the direction of the other end of the laser pointer module.

In the apparatus for estimating the length using the laser pointer, the laser pointer module further includes one or a plurality of third pointers, and the adjusting unit is interposed between the first and third pointers to move from the other end of the laser pointer module. The unit distance varies according to the distance between the slider, which slides in the end direction to change the angle, the guide part disposed between the first to third pointers for guiding the movement of the slider, and the distance between the light exiting part and the target. It may include a ruler formed on the outer surface along one end direction from the other end of the guide portion to be maintained.

The length estimating device using the laser pointer may further include an elastic part disposed to surround the outside of the laser pointer module and providing elastic restoring force in a direction in which the angle between the laser pointer modules is reduced.

The control unit includes a gripping member provided so that a user can grip the slider when transporting the slider, and a sawtooth pattern provided at equal intervals on at least a partial area outside the guide part, and the gripping member reciprocates elastically on the slider. It is coupled to move and interferes with the sawtooth pattern to fix the slider at a set position.

According to the apparatus for estimating the length using a laser pointer according to the present invention,

First, it is possible to estimate the approximate length or size of the target regardless of the distance by using the laser point module,

Second, since the angle between the plurality of pointers can be easily adjusted, the distance between each pointing point can be maintained regardless of the distance between the target and the light output part of the laser pointer module.

Third, the scale corresponding to the distance between the light-emitting part and the target is displayed, so that the unit distance according to the distance can be intuitively checked.

Fourth, when the size of the angle between the pointers increases, it is possible to maintain a more accurate angle between the pointers by preventing slippage in the adjusting unit.

1 is a perspective view schematically illustrating an apparatus for estimating a length using a laser pointer according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view showing the disassembled length estimation apparatus using the laser pointer shown in FIG. 1 .
FIG. 3 is a side view showing the side of the apparatus for estimating the length using the laser pointer shown in FIG. 1. FIG.
4 is a reference diagram illustrating a state in which a user uses a length estimating apparatus using a laser pointer according to a short distance and a long distance.
5 is a perspective view schematically illustrating an apparatus for estimating a length using a laser pointer according to a second embodiment of the present invention.
6 is a side view and a front view showing the side and front views of the apparatus for estimating the length using the laser pointer shown in FIG. 5 .
FIG. 7 is a reference view showing a state in which the angle between the length estimation apparatus using the laser pointer shown in FIG. 5 is modified.
FIG. 8 is an enlarged cross-sectional view illustrating the front and side surfaces of the adjusting unit of the length estimation apparatus using the laser pointer shown in FIG. 1 .

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement them. In the accompanying drawings, it should be noted that the same reference numbers are used as much as possible when indicating the same configuration in other drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known function or a known configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, certain features shown in the drawings are enlarged or reduced or simplified for ease of description, and the drawings and their components are not necessarily drawn to scale. However, those skilled in the art will readily understand these details.

The apparatus for estimating the length using a laser pointer according to the present invention uses a plurality of laser pointer modules to irradiate a laser so that a point of a unit distance set on an object corresponding to a short distance or a long distance maintains the same interval distance, so that the approximate length of the object or size can be estimated. In addition, it is possible to check the length or size of other structures or cracks on the object. A user may be able to check a more precise length or size by irradiating a laser on a target by using a length estimation device using a laser pointer, and analyzing an image taken by photographing a state in which a laser point is located on the target.

1 to 5 show a length estimation apparatus 100 using a laser pointer according to a first embodiment of the present invention.

1 to 5 , the length estimation apparatus 100 using a laser pointer includes a laser pointer module 110 , a hinge unit 120 , and an adjustment unit 130 . In this embodiment, the laser pointer module 110 will be described with two pointers as an example.

First, the laser pointer module 110 includes a first pointer 111 and a second pointer 112 having a light emitting part LA to which a laser is irradiated. The first pointer 111 and the second pointer 112 each irradiate a laser, and when two pointers are used, the pointing point indicated by the laser pointer module 110 regardless of the height of the target (refer to FIG. 4, IP) The unit distance of can be kept constant.

For example, when the first pointer 111 and the second pointer 112 are arranged in a state parallel to the ground and a laser is irradiated, the pointing point IP pointed to by each pointer is the height difference between the light exiting part LA and the target object. It is possible to maintain a unit distance of a constant size regardless of . In addition, when any one of the first pointer 111 and the second pointer 112 is irradiated adjacent to any one corner or vertex of the target, the length or size of the target can be more easily estimated.

When the pointing point IP irradiated on the target and the light exiting part LA of the laser pointer module 110 are at the same height, it is possible to more accurately estimate the length or size.

The hinge part 120 is rotatably coupled to one end EA1 of the first pointer 111 and the second pointer 112 . One end of the first pointer 111 and the second pointer 112 is rotated relative to one another, and the other end EA2 has no coupling structure. The angle θ between the two pointers 112 may be changed.

The hinge part 120 includes a rear cover 121 disposed on one end EA1 of the first pointer 111 and the second pointer 112 , and one of the first pointer 111 and the second pointer 112 . It includes an elastic part 122 elastically connecting between the end and the rear cover 121 . Of course, the hinge unit 120 may be simply hinged for relative rotation, that is, the first pointer 111 and the second pointer 112 may be hinged to be rotatable on the rear cover 121 , respectively.

The rear cover 121 is provided so that the first pointer 111 and the second pointer 112 can be partially inserted into the surfaces facing the one end EA1 of the first and second pointers 111 and 112, respectively. A fastening groove 123 is formed, and a fastening hole 124 is formed so that the elastic part 122 can be inserted.

The elastic part 122 may be flexibly connected between one end EA1 of each of the first and second pointers 111 and 112 and the fastening hole 124 . For example, the elastic part 122 may be made of a synthetic resin material or a torsion spring whose length is not deformed.

Finally, the adjusting unit 130 is interposed between the first pointer 111 and the second pointer 112 and is coupled to slide along the longitudinal direction of the laser pointer module 110 .

The adjusting unit 130 includes a first contact member 131 disposed on a surface facing the first pointer 111 and a second contact member 132 disposed on a surface facing the second pointer 112, and a slider 130a having a connecting member 133 for integrally connecting the first contact member 131 and the second contact member 132 .

The first contact member 131 and the second contact member 132 have the same structure as each other, and have shapes corresponding to the outer surfaces of the first and second pointers 111 and 112, respectively.

For example, when the first pointer 111 has a cylindrical shape and an outer surface thereof is circular, the first contact member 131 may have a concave shape corresponding thereto. Of course, the shapes of the first contact member 131 and the second contact member 132 may be deformed according to the external shapes of the first pointer 111 and the second pointer 112 . In addition, the first contact member 131 and the second contact member 132 may have a shape surrounding the outer surfaces of the first pointer 111 and the second pointer 112 , respectively. In addition, the first contact member 131 and the second contact member 132 have magnetism, and the first pointer 111 and the second pointer 112 are made of a metal material that responds to magnetism and are provided to maintain contact with each other. could be

The connecting member 133 slides between the first pointer 111 and the second pointer 112 together with the first contact member 131 and the second contact member 132 to form a center of the hinge unit 120 . The angle θ between the first pointer 111 and the second pointer 112 is adjusted.

That is, the user slides and moves the connecting member 133 with a finger toward one end direction D1 of the first and second pointers 111 and 112 to move the first and second pointers 111 and 112 . ), when the angle θ between the first and second pointers 111 and 112 changes, the pointing points indicated by the first and second pointers 111 and 112, respectively. The distance between (IP1, IP2) increases.

Of course, when the user moves the slider 130a toward the other end direction D2 of the first pointer 111 and the second pointer 112, the angle between the first pointer 111 and the second pointer 112 ( As θ) decreases, the distance between the respective pointing points IP1 and IP2 indicated by the first pointer 111 and the second pointer 112 decreases.

At this time, a ruler 113 corresponding to the distance between the light exiting part LA and the target OP is formed on at least the outer surface of the first pointer 111, and the slider 130a is connected to the light exiting part LA and the target ( OP), the distance between the pointing points IP1 and IP2 pointed to by each pointer may be maintained at the same distance according to the distance between the light exit unit LA and the target object OP.

And, the outside of the laser pointer module 110 includes a resilient portion 140 disposed to surround each pointer. The resilient part 140 is adjacently coupled to the other end EA2 of the laser pointer module so that when the adjusting part 130 moves in the direction D2 of the other end of the laser pointer module 110, the respective pointers are arranged adjacently again. Provide elastic restoring force as much as possible. That is, the elastic unit 140 may provide an elastic restoring force in a direction in which the angle θ between each pointer of the laser pointer module 110 decreases.

As shown in Figure 4 (a), the length estimation apparatus 100 using a laser pointer, for example, the unit distance is set to 1m, the slider 130a in the direction D2 of the other end of the laser pointer module (110). In the case of full contact, the distance between the pointing points IP1 and IP2 pointed to by the first pointer 111 and the second pointer 112 at a distance of 50 m between the light emitting part LA and the target OP is a unit distance of 1 m. can be set.

In addition, as shown in FIG. 4(b), when the slider 130a is completely in close contact with one end direction D1 of the laser pointer module 110 (adjacent to the hinge part), the light exiting part LA and the target OP ) at a distance of 1 m, the distance between the pointing points IP1 and IP2 indicated by the first pointer 111 and the second pointer 112 may be set as a unit distance of 1 m. Here, the unit distance is 1 m as an example, and may be set in the range of 30 cm to 2 m, and most preferably, may be set in the range of 50 cm to 1 m.

Therefore, when the distance between the light exit unit LA and the target object OP is in the range of 1 to 50 m, the length or size of a structure or crack located on the target object can be easily determined through the length estimation apparatus 100 using a laser pointer. can be estimated Here, the size may include an area or a volume. The distance between the light exiting part LA and the target object OP may be set in a range of 1 to 50 m, and more preferably, may be optimized in a range of 2 to 20 m.

In other words, when the distance between the light emitting unit LA and the target OP is short, the user controls the adjusting unit 130 to increase the angle θ between the first pointer 111 and the second pointer 112 . ) is moved in the direction D1 of one end of the laser pointer module 110, and on the contrary, when the distance between the light exiting part LA and the target object OP is relatively long, the first pointer 111 and the second pointer 112 ), by moving the adjusting unit 130 in the direction of the other end EA2 of the laser pointer module 110 so that the angle between them is small, the length or size of the target object OP can be easily checked.

5 to 8 show contents related to the apparatus 200 for estimating the length using a laser pointer according to the second embodiment of the present invention. Hereinafter, the same reference numerals as the aforementioned reference numerals denote the same components.

5 to 8 , the length estimation apparatus 200 using a laser pointer includes a laser pointer module 210 , a hinge unit 220 , and an adjustment unit 230 .

In the apparatus 200 for estimating length using a laser pointer according to the second embodiment of the present invention, the laser pointer module 210 includes first pointers 211 to fourth pointers 214 . The laser pointer module 210 differs only in the number of pointers, and since the structures of the pointers are the same, a redundant description will be omitted. Of course, the laser pointer module 210 may include only the three pointers of the first pointer 211 to the third pointer 213 .

Hinge portion 220 is rotatably coupled to one end (D1) of each of the pointers. For example, the first pointer 211 may be rotated relative to the adjacent second and third pointers 212 and 213 .

In addition, the hinge part 220 includes a rear cover 221 disposed on one end EA1 of each pointer, and an elastic part 222 elastically connecting one end EA1 and the rear cover 221 of each pointer. ) is included. The structure of the hinge unit 220 also differs only in the number of fastening grooves (see Fig. 2, 123) and fastening holes (see Fig. 2, 124) according to the number of each pointer, but is the same in terms of function and effectiveness. omit

The adjustment unit 230 is interposed between the four pointers and is coupled to slide along the longitudinal direction of the laser pointer module 210 . For example, the control unit 230 may be arranged in a 2*2 structure (two structures arranged in each row and five) when viewed from the light exit direction of each pointer.

The control unit 230 includes a slider 230a in which four pointers are inserted between adjacent surfaces to change an angle between them while sliding, and a slider 230a disposed between the pointers to guide the movement of the slider 230a. and a guide part 230b and a gripping member 230c that can be gripped by the user.

The slider 230a includes a wing member 231 disposed between the surfaces of two adjacent pointers among the four pointers, respectively, and a guide part 230b at a portion connecting the four wing members 231 to each other. It includes a through hole 232 formed to be inserted. One cross-section of the slider 230a is approximately “+”, and a through hole 232 is formed in a central portion thereof. Of course, one cross-section may be formed in a triangular shape so that the slider 230a corresponds to the three pointers.

One end of the guide portion 230b is coupled to the hinge portion 220, and is formed in a rod shape to slide while the slider 230a is guided on the outer circumferential surface of the guide portion 230b. That is, the adjusting unit 230 may adjust the slider 230a to slide around the guide unit 230b so that the four pointers have the same angle between them. Although not mentioned in the first embodiment described above, the adjusting unit having a structure in which the guide unit and the slider are combined may also be applied to the adjusting unit (see FIG. 1 , 130 ) of the first exemplary embodiment.

In addition, the holding member 230c protrudes from the control unit 230 to the outside of the laser pointer module 210 so that the user can grip, pull, or push when the control unit 230 slides.

As shown in FIG. 6 , each wing member 231 is disposed between two pointers one by one, and since the pointers are disposed to be closer to each other toward one end EA1, the slider 230a moves in the direction ( D1) The angle θ between the first and fourth pointers 211 to 214 increases as the direction increases.

That is, the first pointer 211 to the fourth pointer 214 are inclined to approach each other along one end direction D1 , and one end EA1 is coupled to the hinge unit 220 . Accordingly, each wing member 231 is disposed to always contact the respective pointers, but the angle between the first and fourth pointers 211 to 214 may be changed according to the position of the slider 230a. The shape of each wing member 231 of the slider 230a may be formed in a shape corresponding to the outer surface of each pointer (like the shape of the contact member in the first embodiment), or may be made of a magnetic material.

An elastic part 240 disposed to surround the first pointer 211 to the fourth pointer 214 is provided on the outside of the laser pointer module 210 . For example, when the control unit moves in the direction D1 of one end of the laser pointer module 210, the distance between the respective pointers 211 to 214 disposed at the other end EA2 of the laser pointer module 210 is At this time, the elastic part 240 is coupled adjacent to the other end D2 of the laser pointer module 210 so that the adjusting part 230 moves in the direction D2 of the other end of the laser pointer module 210. In this case, it provides an elastic restoring force so that each pointer is placed adjacently again. That is, the elastic unit 240 may provide an elastic restoring force in a direction in which the angle between the respective pointers of the laser pointer module 210 decreases. The elastic part 240 may be made of, for example, a material having elasticity, such as a rubber band.

Referring to FIG. 8 , a ruler 233 is provided on the outer peripheral surface of the guide part 230b. In this embodiment, the ruler 233 provides the same function as in the above embodiment. However, the position of the ruler 233 may be provided on the guide portion (230b). Of course, the ruler may be formed on the outer surface of the laser pointer module.

In addition, the adjustment unit 230 includes a toothed pattern 235 formed on the outer surface of the guide portion 230b and a meshing structure in which the gripping member 230c and the sawtooth pattern 235 are elastically coupled on the adjustment portion 230 . do.

The sawtooth pattern 235 is disposed to interfere with the gripping member 230c on the outer surface of the guide part 230b, and the slider 230a moves from one end EA1 of the laser pointer module 210 to the other end direction D2. It is formed so that interference occurs when moving to In addition, the sawtooth pattern 235 is preferably provided on the guide part 230b to correspond to an area adjacent to one end EA1 of the laser pointer module 210 .

That is, when the user holds the gripping member 230c and moves the slider 230a in the direction D1 of one end, the slider 230a can be moved even in the area where the sawtooth pattern 235 of the guide part 230b is formed. When the slider 230a is moved in the direction D2 of the other end, the gripping member 230c and the sawtooth pattern 235 interfere with each other in the region where the sawtooth pattern 235 is formed, and movement is impossible, so the adjustment part The position of 230 may be fixed. Of course, the sawtooth pattern 235 may be provided over the entire area of the guide part 230b.

For example, when the angle between the pointers is largely adjusted through the adjusting unit 230 , the laser pointer module 210 has a force to restore the angle between the pointers small through the elastic part 240 , so the sawtooth pattern 235 is applied. ), when the coupling structure is improved so that the end of the gripping member 230c interferes, the adjustment part 230 slides or slips from the predetermined fixed position to the other end direction D2 due to the elastic restoring force of the elastic part 240. This has the effect of preventing it from happening.

Therefore, according to the apparatus for estimating the length using a laser pointer according to the present invention, it is possible to estimate the approximate length or size of an object regardless of the distance using the laser point module, and to easily adjust the angle between the plurality of pointers. The unit distance between the pointing points can be adjusted to correspond to the distance between the light output part and the target of the laser pointer module, and the scale corresponding to the distance between the light output part and the target object is displayed, so that the unit distance according to the distance can be intuitively checked. , when the size of the angle between the pointers increases, it is possible to prevent slippage in the adjustment unit, thereby maintaining a more accurate angle between the pointers.

In the above, specific embodiments have been shown and described to illustrate the technical idea of the present invention, but the present invention is not limited to the same configuration and operation as the specific embodiments as described above, and various modifications do not depart from the scope of the present invention. can be carried out within Accordingly, such modifications should be considered to fall within the scope of the present invention, and the scope of the present invention should be determined by the following claims.

100, 200: Length estimation device using laser pointer
110, 210: laser pointer module
120, 220: Hinge part
130, 230: control unit
140, 240: elastic part

Claims (7)

a laser pointer module including at least a first pointer and a second pointer having a light emitting part to irradiate a laser to a target;
a hinge portion to which one end of each of the first and second pointers is rotatably coupled; and
Adjusting the angle between the first and second pointers so that the interval distance between the respective pointing points pointed to by the first and second pointers maintains a set unit distance regardless of a change in the distance between the light exiting part and the target. Including;
The length estimating device using a laser pointer, characterized in that the adjusting unit includes a slider interposed between the first and second pointers to change the angle between the first and second points by sliding from the other end to the one end of the laser pointer module. . The method according to claim 1,
The length estimation apparatus using a laser pointer, characterized in that the slider is formed in a shape corresponding to the outer surfaces of the first and second pointers. The method according to claim 2,
The laser pointer module
A laser pointer comprising a ruler formed on the outer surface along a direction from the other end of the first or second pointer to one end so that the unit distance is maintained irrespective of a change in the distance between the light emitting part and the target. length estimator used. The method according to claim 2,
The control unit,
When the distance between the light emitting part and the target object is close, it moves in the direction of one end of the laser pointer module so that the angle between it becomes large,
Length estimating apparatus using a laser pointer, characterized in that when the distance between the light emitting part and the target is relatively long, the distance between the laser pointer and the laser pointer is moved in the direction of the other end of the laser pointer module so that the angle between them is small. The method according to claim 1,
The laser pointer module further includes one or a plurality of third pointers,
The control unit,
a slider interposed between the first to third pointers and slidingly moved from the other end to one end of the laser pointer module to change the angle therebetween;
a guide part disposed between the first to third pointers to guide the movement of the slider; and
and a ruler formed on the outer surface along a direction from the other end of the guide part to one end so that the unit distance is maintained according to the distance between the light output part and the target object. The method of claim 5,
Length estimation apparatus using a laser pointer, characterized in that it is disposed to surround the outside of the laser pointer module further comprises a resilient portion for providing an elastic restoring force in a direction in which the angle between the laser pointer module decreases. The method of claim 5,
The control unit,
a gripping member provided so that a user can grip the slider when transporting the slider, and a sawtooth pattern provided at equal intervals on at least a partial area outside the guide part,
The length estimation apparatus using a laser pointer, characterized in that the gripping member is coupled to reciprocate elastically on the slider to interfere with the sawtooth pattern to fix the slider at a set position.

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