JPH10185575A - Measuring-point indicating apparatus provided with freely rotatable reflecting-mirror part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a measuring-point indicating apparatus by which an operation in a dangerous place is prevented and in which a reflecting-mirror part can be positioned correctly in a measuring-head part even when an obstacle exists. SOLUTION: A reflecting-mirror part 16 which reflects measuring light from a range finder at a measuring-head part is arranged on a support 15 so as to be freely rotatable, a reflecting mirror 22 for image light is installed at the reflecting-mirror part 16, and a reflecting mirror 23 and a telescope optical system 24 are installed at the other end of the support 15. In addition, a correction prism 25 which reverses an image is installed between the two reflecting mirrors 22, 23, the correction prism 25 is turned by an angle which is half the angle of rotation of the reflecting-mirror part 16 by means of gears 27 to 30, and the attitude of an image which is turned due to the rotation of the reflecting-mirror part 16 is corrected. Then, the measuring-head part can be observed as a magnified image by using the telescope optical system 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in a position measurement plotter for preparing a site sketch for a traffic accident, etc., and has a reflection mirror unit for reflecting measurement light from a distance meter of a measurement head unit. The present invention relates to a configuration of a pointing device.

[0002]

2. Description of the Related Art In a traffic accident processing business, a site plan is created at the time of watching a live broadcast. In recent years, a position measurement drawing device has been used to automatically create the site plan. This position measurement plotting apparatus can simultaneously perform measurement between related points at an accident site and creation of a sketch at the site, which have conventionally been performed using a tape measure. 2. Description of the Related Art As a conventional position measurement plotting apparatus, there is one disclosed in, for example, Japanese Patent Laid-Open No. 5-60560.

[0003] FIG. 4 shows a partial configuration of a conventional position measurement plotting apparatus. As shown in FIG. The measured measurement head unit 2 is provided. This measuring head unit 2
The head unit 2 is configured to move in the elevating direction and the turning direction, and a TV camera 3 and an optical distance meter 4 having an objective optical system 4A are arranged in the head unit 2.

The lightwave distance meter 4 emits measurement light and measures the distance based on the reflected light. The lightwave distance meter 4 also includes a light receiving element (photograph) for receiving tracking light emitted from a measurement point indicating device described later. Diode 5). The light receiving element 5 is, for example, a light receiving element divided into four parts.
The light incident through the same objective optical system 4A is detected as the tracking light. In addition, on this measuring instrument side, TV
Monitor, measurement data (distance data) of the lightwave distance meter 4
A drawing calculation computer or the like for performing a process for creating a sketch on the basis of is provided.

On the other hand, a measuring point indicating device (target portion) 7 which is set at a measuring point such as a road is provided with respect to the measuring instrument mounted on the vehicle. There is provided a reflecting mirror unit 11 having a corner cube reflecting mirror 9 provided at a predetermined height position and a plurality of light emitting units (eg, LEDs) 10 arranged on the outer periphery of the reflecting mirror 9.

According to the above configuration, first, the measuring point indicating device 7 is arranged at the measuring point by the indicating rod 8, and the reflecting mirror 9 is directed toward the measuring head unit 2. The tracking light is output from the unit 10. On the other hand, the tracking light is received by the light receiving element 5 of the measurement head unit 2, and the movement of the measurement head 2 is controlled so as to face the front of the reflecting mirror 9. Then, after confirming the setting state of the measuring point indicating device 7, the measurement is started by pressing a measurement start switch or the like.

That is, the measuring light is emitted from the lightwave distance meter 4 and the reflected light from the reflecting mirror 9 is received, whereby the distance to the measuring point indicating device 7 is measured. Then, the distance data is output to the plotting calculation computer together with the elevation angle and the turning angle information of the measuring head unit 2, and the coordinate calculation on the three-dimensional coordinates is performed. By outputting the drawing data created based on the coordinate data to the plotter, a floor plan can be obtained.

[0008]

However, in the measuring point indicating device 7 of the position measuring plotter, the indicating rod 8 is used.
Is required to face the reflection mirror unit 11 to the measurement head unit 2 after the measurement point is set at the measurement point. However, this work is difficult to perform.
There is also a problem that danger may be involved. That is,
If there is an obstacle such as a street tree or a guardrail, and the measurer cannot stand at a position where the facing operation of the reflecting mirror unit 11 is easy, the work becomes complicated. Also, if the measurer has to stand on the road side in a place with heavy traffic,
It will be dangerous.

Further, the measuring point indicating device 7 may be arranged at a distance of about 100 m from the measuring head unit 2 to a measuring point. When the measuring point indicating device 7 is arranged at a distant point, the measuring head unit 7 is required. It was difficult to accurately confirm the front of No. 2.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to make it possible to easily face a reflecting mirror unit to a measuring head unit even when there is an obstacle. Measuring point indication with a rotatable reflective mirror that can ensure the safety of work in places with danger and that allows easy confirmation of the front of the measuring head when facing directly It is to provide a device.

[0011]

In order to achieve the above object, a measuring point indicating device having a rotatable reflecting mirror according to the present invention is provided so as to be rotatable with respect to a support, and to face a measuring head. A reflecting mirror for reflecting the measuring light from the distance meter of the section, and an image light reflecting mirror for capturing the image light from the measuring head disposed on the reflecting mirror, and disposed on the support. A telescope optical system, a correction optical system disposed in an optical path connecting the image light reflecting mirror and the telescope optical system, and correcting the attitude of an optical image in accordance with rotation of the reflecting mirror unit, and a correction optical system And a driving mechanism for driving the.

According to the above arrangement, the reflecting mirror can be freely rotated with respect to the support, and the positional relationship between the reflecting mirror and the support can be freely changed. , You can stand in a position avoiding those with heavy traffic. At this time, the optical image captured by the image light reflecting mirror of the reflecting mirror section is transmitted to the telescope optical system via another internal reflecting mirror and a correction optical system disposed between the two reflecting mirrors. Led to.

If this optical image is not provided with the correction optical system, the optical image is guided to the telescope optical system while being rotated and tilted in accordance with the rotation of the reflecting mirror unit. The correction is performed by the correction optical system driven by rotation. Therefore,
Even if the reflecting mirror is turned during the facing positioning operation, an upright image will be observed from the telescope optical system, and while looking through this telescope optical system, the reflecting mirror is moved to the position facing the measuring head. The parts can be arranged well.

In addition, according to the telescope optical system, the front of the measurement head can be observed with an enlarged image, and the state of facing the measurement head can be confirmed, and the distance from the measurement point support can be confirmed. Becomes easier.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 show a configuration of a measuring point indicating device having a rotatable reflecting mirror unit according to an example of the embodiment, and FIG. 3 shows a use state of this device. It is shown. As shown in FIG. 3, a measuring head unit 2 is supported by an in-vehicle gantry 1 on the side of a measuring machine mounted on an accident handling vehicle or the like, and the gantry 1 maintains the measuring head unit 2 in a horizontal state. ing. The measuring head unit 2 is configured to be movable in the elevation direction and the turning direction, and the elevation angle and the turning angle are used as drawing data.

Further, a TV camera and a light wave distance meter for photographing the periphery of the measurement point are provided in the measurement head unit 2 as in the prior art, and the light wave distance meter emits the measurement light and reflects the reflected light. And the distance can be measured. Then, the tracking light incident from the later-described reflecting mirror section is captured by a light receiving element in the above-described optical distance meter, so that the reflecting mirror section can be automatically tracked.

Further, on the measuring machine side, there are provided a TV monitor, a drawing calculation computer for performing a process for preparing a sketch based on the measurement data of the above-mentioned optical distance meter, an operation section for performing operations related to measurement, and the like. On the other hand, the measurement head unit 2
A measuring point indicating device 14 is provided at a measuring point away from the measuring point.

In FIG. 1, the measuring point indicating device 14
Is a support 15 and a reflector 16 which also function as an indicator rod.
The reflecting mirror 16 is rotatably attached to the support 15 via the ball bearing 17. The reflecting mirror unit 16 includes a corner cube reflecting mirror 18 and a plurality of light emitting units 19 arranged at equal intervals on the outer peripheral portion, as in the related art.
The tracking head emits tracking light for the automatic tracking function of the measurement head unit 2.

A reflecting mirror 22 is provided on the upper side of the reflecting mirror section 16 as shown in FIG.
5, a reflecting mirror 23 and a telescope optical system 24 are arranged, and an image captured by the reflecting mirror 22 is guided to the telescope optical system 24 via the reflecting mirror 23.

A Dove prism (also referred to as a trapezoidal prism) is disposed as a correction prism 25 in the optical path between the reflection mirrors 22 and 23. The Dove prism 25 reverses the image upside down and rotates the transmitted image twice as much as the rotation angle of the prism itself. The Dove prism 25 is arranged to correct the orientation of the image rotating when the reflecting mirror unit 16 rotates. You. That is, as shown in FIG. 1, when the image is at a normal position where the image is not rotated, the erect image can be observed from the telescope optical system 24 only by inverting the image up and down. Is rotated from the state shown in FIG. 1, the image is rotated. Therefore, in order to cancel the rotation of the image, the correction prism 25 is rotated by half the rotation angle of the reflecting mirror 22, so that the image can be corrected to an erect image.

In the embodiment, the reflecting mirror 1 is used.
The following driving mechanism is used so that the correction prism 25 rotates by a half angle when the support 6 (or the support 15) rotates. That is, a gear 27 provided integrally with a holding portion for fixedly holding the correction prism 25,
A gear 29 that meshes with the gear 29 to adjust the rotation direction, a gear 28A that meshes with the gear 29 and a gear body 28 having a gear 28B on the lower side, and a gear 30 that meshes with the gear 28B are arranged. The gear 30 is integrally attached to the support 15, but the gears 27, 29 and the gear 28 are
The shaft is fixed to the reflecting mirror 16 side, and the rotation center of the gear 27 is arranged so as to coincide with the optical axis of the correction prism 25.

The gear 27, the gear 28A and the gear 29 have the same number of teeth as shown in FIG. 2, but the gear ratio between the gear 30 and the gear 28B is 1: 2. Thus, the gear 27 and the correction prism 25 rotate in the same direction by half the rotation angle of the reflecting mirror section 16. If the rotation angle ratio between the gear 27 and the gear 30 is 1: 2, the established image can be observed with a mechanism other than the above.

An eyepiece 31 is provided at an end of the above-mentioned telescope optical system 24. From this eyepiece 31, an image reflected by the reflecting mirror 23 is enlarged by the telescope optical system 24. You will be able to observe.

The embodiment has the above configuration, and its operation will be described below. First, as shown in FIG. 3, in the preparation of the site sketch, the tip of the support (indicating rod) 15 of the measuring point indicating device 14 is placed at the measuring point, there is no obstacle, and there is no danger due to traffic such as a car. Eyepiece 31 in the direction without
And the measurer looks into the eyepiece 31. Then, the upper reflecting mirror 16 is rotated so as to face the measuring head 2 of the accident handling vehicle.

For example, when the reflecting mirror section 16 is rotated by 60 degrees, the internal reflecting mirror 22 is also rotated by 60 degrees.
The correction prism 25 has a gear train 27 as a driving mechanism,
28A, 28B, 29 and 30, the gear 27 and the gear 3
Since the rotation angle ratio of 0 is 1: 2, half the angle of 30
It rotates about the optical axis by the degree and in the same direction. That is, FIG.
When the reflecting mirror 16 rotates in the counterclockwise direction, the gear 27 also rotates in the counterclockwise direction. Therefore, in this case, the reflecting mirror 22 in the reflecting mirror unit 16 is shifted by 60 degrees from the normal state shown in FIG. 1 with respect to the reflecting mirror 23 on the support side, and the obtained image is also rotated and tilted. The rotated image is a correction prism 25 rotated by 30 degrees.
Will return to the normal posture.

In this manner, the corrected erect image can be observed through the telescope optical system 24, and the observer looking through the eyepiece 31 can capture the front of the measurement head 2 as shown in the figure. Become. And the measuring head unit 2 in this case
Is enlarged by the telescope optical system 24, and the front of the measuring head unit 2 can be easily captured by the enlarged image.

In the above-described embodiment, the correction prism 25 is disposed in the reflecting mirror portion 16. However, the correcting prism 25 can be disposed on the support 15 side, thereby forming the reflecting mirror portion 16 compact. May be.

[0028]

As described above, according to the present invention,
A reflecting mirror section is rotatably arranged with respect to the support, a reflecting mirror for image light is provided on this reflecting mirror section, and a telescope optical system is provided on the other support, and the reflecting mirror section rotates in accordance with the rotation of the reflecting mirror section. The correction optical system that corrects the attitude of the optical image is arranged, so that even if there is an obstacle, the reflecting mirror can be easily faced to the measuring head, and work is performed in a place where traffic is heavy and danger exists. Can be secured, and the work can be performed quickly and easily.

By providing the telescope optical system, an image can be magnified and observed, and it is easy to confirm the front of the measuring head unit when facing the front position, and furthermore, it is arranged at a distant point. There is an advantage that the above-mentioned checking operation with the measuring point indicating device can be performed without difficulty.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a configuration of a measurement point indicating device including a rotatable reflecting mirror unit according to an embodiment of the present invention.

FIG. 2 is a view of a gear of the drive mechanism of FIG. 1 as viewed from above.

FIG. 3 is a perspective view showing an actual work situation using the measuring point indicating device of the embodiment.

FIG. 4 is a block diagram showing a configuration of a conventional position measurement drawing device.

[Explanation of symbols]

 Reference numeral 2: Measurement head, 7, 14: Measurement point indicating device, 4: Optical distance meter, 11, 16: Reflecting mirror, 15: Support, 17: Ball bearing, 22, 23: Reflecting mirror, 24: Eyepiece Lens, 25 ... Correction prism (Dove prism), 27, 28A, 28B, 29, 30 ... Gear.

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[Procedure amendment]

[Submission date] February 26, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

The lightwave distance meter 4 emits measurement light and measures the distance based on the reflected light. The lightwave distance meter 4 also includes a light receiving element (photograph) for receiving tracking light emitted from a measurement point indicating device described later. Diode 5). The light receiving element 5 is, for example, a light receiving element divided into four parts.
The tracking light incident through the same objective optical system 4A is detected. In addition, on the measuring device side, a TV monitor, a drawing calculation computer for performing a process for creating a sketch based on measurement data (distance data) of the lightwave distance meter 4 and the like are provided.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

According to the above arrangement, the reflecting mirror can be freely rotated with respect to the support, and the positional relationship between the reflecting mirror and the support can be freely changed. , You can stand in a position avoiding those with heavy traffic. At this time, the optical image captured by the reflecting mirror for image light is guided to the telescope optical system via, for example, another internal reflecting mirror and a correction optical system disposed between these reflecting mirrors. I will

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction contents]

In FIG. 1, the measuring point indicating device 14
Is a support 15 and a reflector 16 which also function as an indicator rod.
The reflecting mirror 16 is rotatably attached to the support 15 via the ball bearing 17. The reflecting mirror section 16 includes a corner cube reflecting mirror 18 and a plurality of light emitting sections 19 arranged at equal intervals on its outer peripheral portion, for example, as in the related art. The tracking light for the automatic tracking function is emitted.

Claims (1)

[Claims] 1. A reflecting mirror portion rotatably disposed on a support and reflecting measurement light from a distance meter of a measuring head portion facing the reflecting mirror portion, and an image from the measuring head portion disposed on the reflecting mirror portion. A reflecting mirror for image light for capturing light, a telescope optical system disposed on the support, and an optical path connecting the reflecting mirror for image light and the telescope optical system, and rotating the reflecting mirror unit A measurement point indicating device including a rotatable reflecting mirror unit, comprising: a correction optical system that corrects an attitude of an optical image in accordance with the above, and a drive mechanism that drives the correction optical system.