JPH0742934U - Reflection target for virtual point measurement - Google Patents

Abstract

(57) [Abstract] [Purpose] When measuring the three-dimensional coordinates of a virtual right-angled corner point, a reflection sheet can be placed on the virtual station without making a frame as in the conventional method. Providing a reflection target for measuring virtual measuring points that enables smooth and suitable measurement work. [Structure] A lower edge 12 flush with a mounting bottom surface that extends horizontally slidably from a base 10 having a smooth mounting bottom surface.
and a horizontal arm 12 having a, a mounting bottom surface of the base 10 and the horizontal arm 12 provided at the tip of the horizontal arm 12.
A vertical arm 16 that sets a vertical line that is perpendicular to the lower edge 12 a of the horizontal arm 12, a vertical line that is set by the vertical arm 16 at the tip of the horizontal arm 12, and the lower edge 12 a of the horizontal arm 12 intersects. The reflection sheet 20 was provided at the position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a reflection target for virtual point measurement, and more particularly to a reflection target for virtual point measurement used for three-dimensional measurement of a virtual point position on a chamfered corner of a large structure.

[0002]

[Prior art]

 Conventionally, there is known a reflection prism fixing device used when a measurement point is near a wall or the like and a reflection prism cannot be positioned on the measurement point using a tripod or the like. For example, on a clamp par that can be clamped to the upper edge of a wall, a clip that can be swung by a universal joint extends horizontally, and the clip supports the pole of the reflection prism (for example, actual development 60). No. 48112) is known.

Further, a reflector pole that is vertically installed to slidably attach the reflector, an arm member that is installed orthogonally to the reflector pole, and a surveying pole that is installed vertically and the arm member are orthogonal to each other. A proposed technique (see Japanese Utility Model Application Laid-Open No. 59-35815) is known, which comprises an engaging member that is slidably connected depending on the state.

In these proposed techniques, a reflector support member is attached to the reflector pole so that the intersection of the virtual reflection surface of the reflector and the optical axis is inside the reflector pole, and the lower end of the reflector pole is lowered. The swing is configured to be attachable.

[0005]

[Problems to be solved by the device]

 Generally, as a method for three-dimensionally measuring the outer shape of a large building such as a ship, a distance measuring finder that attaches a reflection sheet to the measuring points and combines an optical wave range finder and an encoder It is known that the position of the reflection sheet is obtained in three-dimensional coordinates by using a "certain". Then, as shown in FIG. 6, there are cases where it is desired to obtain the three-dimensional coordinates of the virtual right-angled corner point P in the chamfered portions a, b, and c (shown by diagonal lines).

In such a case, the above-described conventional prism fixing device requires not only a space for disposing and setting the tripod at a position away from the measuring point, but also a tripod disposing operation. In addition, it is necessary to specify the measuring point to the lower position because the tip of the stone is located on the measuring point, and because the hanging ball and hanging ball thread (downward swing) are used, it is necessary to specify the measuring point at the lower position. If there is a measuring point in the hollow part, it cannot be used at all.

[0007] Therefore, conventionally, a portion supposed to be the corner point P is specified by forming a frame and a reflection sheet or a corner prism is installed there. However, there was a problem that the work efficiency was extremely poor because it was necessary to create a framework for each virtual measurement point.

An object of the present invention is that when measuring the three-dimensional coordinates of a virtual right-angled corner point, a reflection sheet can be placed on the virtual station without forming a frame as in the conventional case. It is intended to provide a reflection target for measuring virtual measuring points, which enables smooth and suitable measurement work.

[0009]

[Means for Solving the Problems]

 The reflection target for virtual point measurement according to the present invention comprises a base having a smooth mounting bottom surface and a lower edge flush with the mounting bottom surface horizontally slidably extending from the base. A horizontal line that sets a vertical line that is perpendicular to the bottom of the base and the lower edge of the horizontal bar through the horizontal bar and the tip provided at the tip of this horizontal bar. Means, and a reflection sheet provided at a position where the vertical line set by the vertical line setting means at the tip of the horizontal rod-shaped portion and the lower edge of the horizontal rod-shaped portion intersect with each other. Characterize.

According to a second aspect of the present invention, the vertical line setting means is attached to the tip end portion of the horizontal rod-shaped portion so as to be slidable in the vertical direction, and is perpendicular to the lower edge of the horizontal rod-shaped portion. It is preferable that the vertical bar-shaped portion extends. Further, the vertical line setting means may be configured by a collimation telescope provided at the tip of the horizontal rod-shaped portion as in claim 3.

[0011]

[Action]

 In the present invention, by placing the base on the horizontal surface of the object to be measured, the lower edge of the horizontal bar portion is flush with the horizontal surface, and the vertical line created by the vertical line setting means is the vertical line of the object to be measured (for example, a building). Match the vertical plane. As a result, the reflection sheet is located on the ridgeline (measurement point), which is the intersection of the horizontal plane and the vertical plane of the DUT (building). Further, in claim 2, the base is positioned so that the vertical rod-shaped portion coincides with the vertical surface. In the third aspect, the base is positioned so that the centripetal point of the collimation telescope coincides with the vertical plane. By doing this, when measuring the three-dimensional coordinates of the virtual right-angled corner point, the reflection sheet can be placed on the virtual station without making a frame as in the conventional case, and the measurement of the virtual station can be performed. Work can be carried out smoothly and suitably.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. It should be noted that the members, arrangements, and the like described below do not limit the present invention and can be variously modified within the scope of the gist of the present invention.

FIG. 1 and FIG. 2 show an embodiment of a reflection target for measuring virtual station according to the present invention, and an explanatory view showing a state in which the reflection target for measuring virtual station is located at a virtual station. FIG. 2 is a plan view of a reflection target for measuring virtual station. Note that FIG. 3 is a front view showing an example of the reflection sheet.

The reflection target S for virtual point measurement in this example mainly includes a base 10, a horizontal arm (horizontal bar portion) 12, a vertical arm (vertical line setting means) 16, and a reflection sheet 20. As an element.

The base 10 of this example is composed of a rectangular magnet, and is structured so as to be adsorbed and fixed to the object surface of an object to be measured made of a magnetic material, but a thin double-sided adhesive sheet that can be peeled off. It can be fixed even if the object to be measured is not a magnetic material by attaching such as. The mounting bottom surface 10a, which is the bottom surface of the base 10, is a smooth flat surface. A groove 10b is formed on the mounting bottom surface 10a of the base 10, and a horizontal arm 12 as a horizontal bar portion is arranged in the groove 10b.

The horizontal arm 12 of this example is held in the groove 10 b, extends horizontally from the base 10, and is configured integrally with the base 10. The lower edge 12a of the horizontal arm 12 is formed to be flush with the base 10, and the side surfaces (front and back surfaces as viewed from FIG. 1) 12b of the arm 12 are provided with linear scales 12c along the lower edge 12a. It is attached.

Further, a frame-shaped portion 14 is formed at the tip of the horizontal arm 12, and the frame-shaped portion 14 is formed with a rectangular hole 14a penetrating upward and downward. A screw hole 12e is formed in a surface 12d of the frame-shaped portion 14 on the side opposite to the horizontal arm 12, and a fixing screw 13 is screwed into the screw hole 12e. It is configured to fix the vertical position of a vertical arm 16 described later.

The rectangular hole 14a is formed perpendicular to the mounting bottom surface 10a of the base 10 and the lower edge 12a of the horizontal arm 12, and the rectangular hole 14a has a vertical line setting step. The vertical arm 16 is inserted, and the vertical arm 16 is configured to be slidable in the vertical direction along the rectangular hole 14a. As shown in FIG. 1, the vertical arm 16 is formed so that the base 20 side of the lower end (that is, the inner side edge 16b) is formed as a straight line, and the opposite side is formed with a curve toward the tip. Further, a linear scale 16c is provided along the vertical arm 16 on the inner side edge 16a of the side surface (front surface and back surface as viewed in FIG. 1) 16b of the vertical arm 16.

A rectangular reflection sheet 20 is attached to the side surface 14 b of the frame-shaped portion 14 of the horizontal arm 12. On the surface of the reflection sheet 20 of this example, a target line composed of a cross line 21 and a circle 22 is printed. The reflection sheet 20 is attached at a position where the vertical line formed by the vertical arm 16 arranged at the tip of the horizontal arm 12 and the lower edge 12a of the horizontal arm 12 intersect. In other words, the target line composed of the crosshair 21 and the circle 22 printed on the surface of the reflection sheet 20 of the present example is as follows: the crosshair 21 is the lower edge 12a of the horizontal arm 12 and the inner side edge 16 of the vertical arm 16. The reflection sheet 20 is attached to the side surface 14b of the frame-shaped portion 14 so as to correspond to a.

In this example, the index 17 formed of a triangular graphic is provided on the side surface 14b of the frame-shaped portion 14 on the inner side edge 16a of the vertical arm 16 and on the extension of the lower end edge 12a of the horizontal arm 12. Has been. Therefore, the position of the cross hairs 21 of the reflection sheet 20 can be aligned and arranged according to the index 17.

Next, when this reflection target is installed as an object to be measured on the virtual ridgeline C of the chamfered surface B of the large steel building A (in order to measure the three-dimensional coordinates of this virtual ridgeline C, The case where the reflection sheet is positioned at C) will be described. It should be noted that this example of description is based on the case where the front side horizontal ridgeline D of the building A is used as a reference. First, a predetermined reflection sheet 20 is attached in advance by aligning the position of the cross mark 21 of the reflection sheet 20 with the index 17 of the side surface 14b of the frame-shaped portion 14. Although the reflection sheet 20 is used in this example, a cat's eye in which a minute corner cube prism group is continuously formed on the back surface and the back surface serves as a light reflecting surface can also be used.

As shown in FIG. 1, with the vertical arm 16 projecting largely downward from the horizontal arm 12, the lower edge 12 a of the horizontal arm 12 is along the front horizontal ridge D of the building A (that is, coincidence). At the same time, the base 10 is placed so that the inner side edge 16a of the vertical arm 16 is along the side surface (the right side surface in FIG. 1) E of the building A. The center of the cross line (target line) 21 of the reflection sheet 20 is located on the virtual ridge line C only by installing in this way. After that, the center of the crosshairs (target) 21 of the reflection sheet 20 is collimated, and the optical axis of the rangefinder (not shown) and the center of the crosshairs (target) 21 as in the conventional case. The virtual measurement point C can be easily collimated by combining and measuring.

In the above-mentioned embodiment, the example in which the horizontal arm 12 is held integrally with the base 10 has been described, but the horizontal arm 12 is slid using the groove 10b formed in the base 10 as a sliding groove. Fixing screws 13 and the like are added to the base 10 so that the horizontal arm 12 can slide in the sliding groove 10b so that the base 10 can be clamped in the groove 10b. The horizontal arm 12 can then be slid to adjust the vertical arm 16 after it is secured to. This is suitable when the side surface (right side surface) E of the building A has irregularities to correct the position. Reference numeral 10c is a magnet chuck.

FIG. 3 is a view showing the other side of the reflection sheet 20 attached to the frame-shaped portion 14. When the center of the reflection sheet is located at the virtual measurement point C in the chamfered portion of the measured object, the above-mentioned square reflection sheet 20 causes the chamfered portion to be measured when the chamfered amount of the measured object is small. In addition, there is a possibility that the corner end of the reflection sheet 20 interferes. Therefore, as shown in FIG. 3 (A), the corner end of the reflection sheet located on the chamfered portion side, that is, the virtual measurement point C side is cut out in a diagonal straight line shape, or as shown in FIG. 3 (B). By using a 1/4 rectangular cutout or the like, the chamfered portion and the virtual measuring point can be configured so as not to interfere with each other. The shape of the cutout portion is not limited to the straight line or the rectangular shape, and it is needless to say that the cutout portion may have a circular arc shape or an indefinite curve shape.

FIGS. 4 and 5 show another embodiment of the present invention. FIG. 4 is an explanatory view showing a state in which a reflection target for measuring virtual measuring points is positioned at a virtual measuring point, and FIG. FIG. 4 is an enlarged view of a main part of FIG. In this example, the same members, arrangements and the like as those in the above-mentioned examples are designated by the same reference numerals and the description thereof will be omitted.

In this example, the collimation telescope 30 is fixed to the tip of the horizontal arm 12. A frame-shaped portion 34 for supporting the collimation telescope 30 is formed at the tip of the horizontal arm 12, and a flat surface is projected on a side surface (front surface as viewed in FIG. 4) 34b of the frame-shaped portion 34. Thus, the reflection sheet attaching portion 34a is formed, and the reflection sheet 20 is attached to the reflection sheet attaching portion 34a.

The collimation telescope 30 of this example is a telescope with a built-in focusing screen 32 having a crosshair 31 and is positioned vertically with respect to the lower edge 12 a of the horizontal arm 12 when viewed from above. Is located at the center of the cross line 31 in the visual field.

The cross hairs 21 printed on the reflection sheet 20 are aligned with the lower edge 12 a of the horizontal arm 12 and the optical axis of the collimation telescope 30. In this embodiment, the base 10 is placed by the collimating telescope 30 so that the ridge F is located at the center of the visual field. At this time, the horizontal arm 12 is configured to be slidable with respect to the base 10, and in particular, is configured to be capable of coarse and fine movements, whereby collimation by the collimation telescope 30 can be easily performed. .

In this example, since the reflection sheet attaching portion 34a is made to have substantially the same size as the reflection sheet 20 attached to this portion and is projected, the reflection sheet 20 is arranged as it is in accordance with this protruding shape. As a result, the center of the crosshair 21 of the reflection sheet 20 is aligned with the lower edge 12a of the horizontal arm 12 and the optical axis of the collimation telescope 30.

However, the protruding reflection sheet sticking portion 34 a is made larger than the reflection sheet 20 so that the extension of the lower edge 12 a of the horizontal arm 12 and the optical axis of the collimating telescope 30 are aligned with a cross-shaped line or a triangular index. It is possible to make the center of the reflection sheet coincide with the virtual measuring point by sticking the reflection sheet 20 in accordance with the cross line or the index by printing such as. In this way, the external size, shape, type, etc. of the reflection sheet can be selected in various ways, and the reflection sheet that matches the surveying purpose can be selected, and the work efficiency can be improved.

[0031]

[Effect of device]

 As described above, according to the present invention, since the tripod is not used when measuring the three-dimensional coordinates of the virtual right-angled corner point, it is not necessary to set the tripod's arrangement space or position, and the conventional framework is used. It is possible to arrange the reflection sheet on the virtual measuring point without making a curve, and it is possible to smoothly and suitably perform the measuring operation of the virtual measuring point.

[Submission date] March 25, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction content]

[0012]

【Example】

An embodiment of the present invention will be described below with reference to the drawings. All parts material, arrangement, and so on described below are not intended to limit the present invention, it is those that can you to various modifications within the spirit of the present invention.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a state in which a reflection target for virtual station measurement according to the present invention is located at a virtual station.

FIG. 2 is a plan view of a reflection target for measuring virtual station.

FIG. 3 is a front view showing an example of a reflection sheet.

FIG. 4 is an explanatory diagram showing a state in which a reflection target for measuring virtual station of another example is positioned at a virtual station. .

FIG. 5 is an enlarged view of a main part of FIG.

FIG. 6 is an explanatory diagram illustrating a virtual measuring point.

[Explanation of symbols] 10 base 10a mounting bottom 10b groove 10c magnet chuck 12 horizontal arm (horizontal bar portion) 12a lower edge 12b side surface 12c linear scale 12d surface 12e screw hole 13 fixing screw 14 frame-shaped portion 14a rectangular shape Hole 14b Side surface 16 Vertical arm (vertical line setting means) 16a Inner side edge 16b Inner side edge 16c Linear scale 17 Index 20 Reflective sheet 21 Crosshair 22 Circular 30 Collimating telescope 31 Crosshair 32 Focus plate 34 Frame-like portion 34a Reflection Sheet attachment part 34b Side surface S Reflective target for virtual point measurement

Claims (3)

[Scope of utility model registration request] 1. A base having a smooth mounting bottom surface, a horizontal bar-shaped portion extending horizontally slidably from the base and having a lower edge flush with the mounting bottom surface, and the horizontal bar-shaped portion. Vertical line setting means for setting a vertical line perpendicular to the mounting bottom surface of the base and the lower edge of the horizontal rod-shaped portion through the tip provided at the tip of the horizontal rod-shaped portion. A reflection target for virtual point measurement, comprising: a reflection sheet provided at a position where a vertical line set by the vertical line setting means intersects with a lower edge of a horizontal bar portion. 2. The vertical line setting means is attached to a tip end portion of the horizontal rod-shaped portion so as to be slidable in the vertical direction, and extends vertically to a lower edge of the horizontal rod-shaped portion. The virtual target measuring reflective target according to claim 1, wherein the reflective target is constituted by a rod-shaped portion. 3. The virtual target measuring reflection target according to claim 1, wherein the vertical line setting means is constituted by a collimation telescope provided at a tip end portion of the horizontal rod-shaped portion.