JPH04134009U - Target for distance measurement - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a distance measurement target that can use distance measurement light as a guide light even in a conventional total station without a guide light output function. [Structure] A distance measuring target consisting of a reflecting prism 14 that is attached and integrated with a pole 30 and used facing a total station.The reflecting prism housing casing 10 includes an infrared sensitive video camera 20 and a camera monitor 26. A video camera device is built-in, and a reference point (crosshair) 40 corresponding to the center of the reflecting prism is provided on the screen 27 of the camera monitor 26.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is used in conjunction with a total station to search for target points during piling work, etc. It is used for distance measurement with a reflective prism attached to a pole. Regarding the target (hereinafter simply referred to as target).

0002

[Conventional technology]

In order to find the target point for hitting the hitch in the work of hitting the hitch, one person must hold the target and One person stands near the gage and sights the target from the total station. Transceive to a worker with a target (hereinafter referred to as the target man). Give a signal using a bar, etc. to indicate the direction of movement, and the two people will continue to do this until the target is at the target position. I was repeating this over and over again. In the actual work, we first set up the total scale at the reference point. Position the horizontal angle of the telescope so that the station telescope faces the target point. Next The target man places the target on the total station telescope near the target point. Stand in a position where you think you are almost directly facing each other. Next, take a look at the total station telescope. Then, use a transceiver or the like to instruct the target so that it is at the correct position in the left and right directions. Ta The target man moves left and right according to the instructions, and the target reaches the total station. When the position is directly opposite, the total station measures the distance and Compare the distance to the target point with Give instructions and guide to the target point.

0003 However, this method of setting the target point is very tedious work, so in recent years it has been The guide light (visible light) is different from the ranging light used in the data center station. Emit light from the total station and use this guide light to target the target man alone. A guide light emitting device is known that can confirm the position directly facing the total station. ing. This is a white light in the direction directly facing the total station, and a white light to the left of it. The guides from the total station have different colors, such as red light and green light on the right. The guide light is emitted so that the target man can see the color of the guide light from his standing position. This allows the operator on the total station side to confirm the facing position based on the The target man can confirm the exact position with the total station by himself without any instructions. This will speed up the work.

0004

[Problem that the idea aims to solve]

However, the guide light emitting device described above is built-in and integrated within the total station. This made total stations expensive. Also, the guide For total stations that are not equipped with a light emitting device, use this guide light emitting device. Since there is no separate radiation device, this guide method using guide light cannot be used. As before, the work must be done while moving the target based on the operator's intuition. It was. Also, a guide method using a total station with a built-in guide light emitting device. In the formula, when the target man is located far away from the total station, It is difficult to distinguish the color of the light, especially when sunlight hits the total station in the evening. In such cases, it is even more difficult to distinguish.

[0005] The present invention was devised in view of the problems of the prior art, and its purpose is to provide total A distance measurement target that uses the station's distance measurement light as a guide light. Our goal is to provide the following.

[0006]

[Means to solve the problem]

In order to achieve the above object, the ranging target according to the present invention has a port. A reflective prism that is integrated into the total station and used opposite the total station. In the distance measuring target consisting of If a video camera device consisting of a line-sensitive video camera and a camera monitor is built in, In addition, a reference point corresponding to the center position of the reflective prism is set on the screen of the camera monitor. It was designed so that it could be used.

[0007] Further, in a second aspect of the present invention, in the distance measuring target according to the first aspect, the reflective prism A transparent part is provided at the top corner of the frame, and a video camera is installed behind this transparent part. It is something that

[0008]

[Effect]

The camera monitor displays the scenery seen from the video camera. and a distance measuring tar When the target and the total station telescope face each other, the total station The infrared light for distance measurement emitted from the camera is captured by a video camera and displayed on the camera monitor. appears as a spot light on the screen. Also, the reference point on the camera monitor screen is This indicates the center position of the radiation prism, and when the spot light matches the reference point, the target The target will be in a position directly facing the total station.

[0009] Further, in claim 2, since the center of the reflecting prism coincides with the optical axis of the video camera, , the positioning of the target directly facing the total station becomes accurate.

0010

【Example】

Next, embodiments of the present invention will be described based on the drawings. Figures 1 to 3 show an embodiment of the present invention, and Figure 1 shows a distance measurement target. A vertical cross-sectional view of a reflecting prism, Figure 2 is a block diagram of a video camera device, and Figure 3 is a monitor. This is a front view of the image shown in the image.

[0011] In these figures, reference numeral 10 is a casing equipped with a prism attachment part 12; A reflective prism 15 is integrated into the prism mounting portion 12 within a truncated conical case. A prism frame 14 is screwed onto the prism frame 14. A video camera 20 is inside the casing 10. A video camera device consisting of a camera monitor 26 and a camera monitor 26 is housed. The camera 20 is located directly above the prism frame 14 and at the center C of the reflective prism 15. are arranged so that their optical axes L are offset in the vertical direction. camera monitor 2 6 is a liquid crystal type that exposes the screen 27 of the camera monitor 26 on the back side of the casing. The sea urchins are placed in the same direction. On the screen 27, there is a crosshair 40 (4) corresponding to the prism center C. 1, 42) are formed. A pole attachment part 29 is provided on the bottom surface of the casing 10. The upper end of the pole 30 is screwed onto this pole attachment part 29, and the pole The handle 30 and the casing 10 are integrated.

0012 The sensitivity of the video camera 20 is used for ranging at the total station. Since the light (distance measuring light) is infrared light, it is sensitive to not only visible light but also infrared light. It has the ability to As shown in FIG. An objective lens 21 that images the light onto the rear CCD 22; The captured image is photoelectrically converted and output as a video image signal to the liquid crystal camera monitor 26. It is composed of a drive circuit 24. A video is displayed on the screen 27 of the monitor 26. The scenery as seen from the position of the camera 20 appears, and the total stereo The infrared light emitted from the station appears as spot light S. And screen 27 A crosshair 40 (41, 42) is a reference point corresponding to the center C of the reflective prism 15. ) is formed, the target man can check the position of the spotlight S on the screen 27. Based on the amount of deviation with respect to the crosshair 40, the direction of the current target point is up, down, left and right. Any deviation in direction can be recognized at a glance.

[0013] In order to actually find the anti-striking point using the target according to this example, first, the reference point is Adjust the horizontal angle of the telescope so that the total station telescope installed at Adjust. Next, the total station emits ranging light. On the other hand, the target Toman places the target near the target point in the direction it will be seen when facing the telescope. Then, the scenery seen from the target position is displayed on the screen 27 of the monitor 26. At the same time, the distance measurement light emitted from the total station is imaged as a spot light. Appears on surface 27. Then, while looking at this screen 27, the worker sees that the spotlight S is Simply move the target left and right to match the vertical line 41 of the crosshair. On the straight line connecting the total station and the target point (with the total station) The target can be positioned directly in front of the target. Then total station Compare the measured distance value with the previously known distance measurement data, and calculate the total station. The target person moves back and forth based on the instructions of the operator on the side, and pinpoints the target point. This is the same as the conventional method.

[0014] FIG. 4 shows another embodiment of the present invention, and is a longitudinal sectional view of a ranging target. . In this embodiment, the apex corner of the reflective prism 15 is cut so that the transparent portion 1 6 is formed. The objective lens of the video camera 20 is located behind this transparent part 16. lens 21 is located, and the optical axis L of the video camera is aligned with the center C of the reflective prism 15. It is placed side by side. The screen 27 of the monitor 26 shows the inside of the reflecting prism 15. A landscape that can be seen from the heart appears. Also, as shown in Figure 5, on the monitor screen A crosshair 40 (41, 42) is formed in the center, making it easy to see the screen and using spotlights. There is an advantage that positioning of S is easy.

[0015] In addition, in the above-described embodiment, when the target according to the present invention is used for piling work, As explained above, by making the pole 30 have a telescopically adjustable structure, the space can be improved. It is also possible to use the target according to the present invention at the three-dimensional friction position above. It is.

[0016]

[Effect of the idea]

As is clear from the above explanation, according to the ranging target according to the present invention, The camera detects the infrared light for distance measurement emitted from the total station. This is displayed as a spotlight on the camera monitor, so the target man can see this. Spot light (target position) and reference point (total position) can be determined by looking at the monitor. You can recognize at a glance the deviation in the left and right direction from the station (directly facing the station). If you move the target while watching the monitor to eliminate the target man, You can easily identify the facing position by yourself, and quickly perform the task of searching for the hitting point. can.

[0017] In particular, the present invention can be applied to conventional total stages that do not have a built-in guide light emitting device. We have developed a new total station with a new guide light emitting device. The big advantage is that you don't have to buy it all at once.

[Brief explanation of drawings]

[Fig. 1] A vertical cross-sectional view of a ranging target that is a first embodiment of the present invention.

[Figure 2] Block diagram of video camera device

[Figure 3] Front view of the camera monitor screen in the same target

[Fig. 4] Longitudinal cross-sectional view of a ranging target that is a second embodiment of the present invention.

[Figure 5] Front view of the camera monitor screen in the same target

[Explanation of symbols]

10 Reflection prism housing casing 14 Prism frame 15 Reflection prism 16 Translucent part formed at the apex corner of the reflective prism 20 Video camera 26 Camera monitor 27 Camera monitor screen 29 Pole attachment part 30 Paul 40 Crosshair as a reference point

Claims (2)

[Scope of utility model registration request] 1. A distance measuring target consisting of a reflecting prism that is attached to and integrated with a pole and used facing a total station, wherein a video camera device consisting of an infrared sensitive video camera and a camera monitor is mounted in the reflecting prism housing casing. What is claimed is: 1. A distance measuring target having a built-in camera monitor, and a reference point corresponding to a center position of a reflecting prism provided on a screen of the camera monitor. 2. The distance measuring target according to claim 1, wherein a light-transmitting portion is provided at an apex corner of the reflecting prism, and the video camera is provided behind the light-transmitting portion.