JPH05322570A - Surveying equipment - Google Patents

Abstract

PURPOSE:To obtain a surveying equipment capable of rotating the main body of the surveying equipment by a predetermined angle by simple operation. CONSTITUTION:A surveying equipment is equipped with a surveying equipment main body provided so as to be rotatable around a vertical axis and optical systems 10, 11 emitting measuring beams to an object to be measured and detecting the reflected beams from the object to be measured. Operation switches F1-F3 for rotating the surveying equipment main body by a preset angle and rotary means 110, 70 rotating the surveying equipment main body by the predetermined angle when the operation switches F1-F3 are pushed are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surveying instrument main body rotatably provided around a vertical axis, and a measurement light beam emitted toward the measurement object provided on the surveying instrument body and reflected by the measurement object. And an optical system for receiving the reflected light flux.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 12, a surveying instrument is provided with a surveying instrument main body 202 rotatably mounted on a base 200 about a vertical axis 201 and a horizontal axis 203 of the main surveying instrument 202. The surveying instrument main body 202 is provided with a bubble tube 205 and an operating section 206. The base 200 is attached to the fixed base 209, and the horizontal state of the base 200 can be adjusted with respect to the fixed base 209 by the leveling screw 210. This adjustment is performed while looking at the bubble tube 205.

A measuring light beam is applied to the object to be measured in the lens barrel portion 204.
A telescope 207 having an optical system that emits toward (not shown) and receives a reflected light flux that is reflected by the measurement object.
Is provided.

The operation unit 206 includes a switch unit 206 for rotating the surveying instrument main body 202 about the vertical axis 201.
a, 206b, switch sections 206c, 206d for rotating the telescope section 204 around the horizontal axis 203, and the surveying instrument main body 2
A display unit 208 and the like for displaying the rotation angle of 02 and the elevation angle that is the rotation angle of the telescope unit 204 are provided.

When carrying out a survey, a leveling operation is first performed. This leveling work is performed by observing the base 20 while watching the bubble tube 205.
Level 2 is adjusted horizontally by a leveling screw 210. Thereafter, the switch units 206a and 206b are operated to rotate the surveying instrument main body 202 by 180 degrees, and the base 202 is adjusted to a horizontal state by the leveling screw 210 while looking at the bubble tube 205 in the same manner. Next, after rotating the surveying instrument main body 202 by 90 degrees, the base 200 is adjusted to a horizontal state by the leveling screw 210 while looking at the bubble tube 205. And, the surveying instrument main body 202
After rotating it by 80 degrees, look at the bubble tube 205 and see the base 20.
0 is adjusted to a horizontal state by the leveling screw 210.

By this leveling work, the vertical axis 201 of the surveying instrument main body 202 is made orthogonal to the horizontal plane.

[0007]

However, in the conventional surveying instrument, the surveying instrument main body 200 is designed to rotate only while the switch portions 206a and 206b are being pressed, so that the surveying instrument main body 200 is rotated by 90 degrees. In order to rotate by 180 degrees or 180 degrees, the switch sections 206a and 206b must be kept pressed, which is very inconvenient.

Therefore, the present invention has been made in view of the above problems, and an object thereof is to provide a surveying instrument capable of rotating the surveying instrument main body by a predetermined angle by a simple operation.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a surveying instrument main body rotatably provided around a vertical axis, and a measurement light beam that is emitted toward a measurement object and the measurement object. In a surveying instrument equipped with an optical system for receiving a reflected light beam reflected by the surveying instrument, an operation switch for rotating the surveying instrument body by a predetermined angle set in advance and the surveying instrument body when the operation switch is pressed. And a rotating means for rotating the same by a set predetermined angle.

Further, according to the present invention, there is provided a surveying instrument main body rotatably provided around a vertical axis, and an optical system for emitting a measuring light beam toward a measuring object and receiving a reflected light beam reflected by the measuring object. In a surveying instrument equipped with, a display means for displaying an angle for rotating the surveying instrument main body in a predetermined direction, an operation switch corresponding to the angle, and an angle displayed on the display means when the operation switch is operated. And a rotation means for rotating the surveying instrument body.

[0011]

According to the present invention, when the operation switch is pressed, the rotating means rotates the surveying instrument main body by the set predetermined angle.

When the operation switch is pressed, the rotation means rotates the surveying instrument main body by the angle displayed on the display means.

[0013]

Embodiments of a surveying instrument according to the present invention will be described below with reference to the drawings.

In FIG. 1 and FIG. 2, 1 is a survey table, 2
Is a corner cube as a distance measuring object installed at a measuring point. The survey table 1 is installed on the ground here. A surveying instrument 3 is installed on the surveying table 1.

As shown in FIGS. 3 to 5, the surveying instrument 3 comprises a fixed base 4 and a base 5 mounted on the fixed base 4. The angle between the plane 5a of the base 5 and the plane 4a of the fixed base 4 is the leveling screws S, S, S.
It can be adjusted by.

A bearing member 7 having a bearing portion 6 extending in the vertical direction is fixed to the base 5, and a rotary shaft 8 extending in the vertical direction is rotatably attached to the bearing portion 7.
A surveying instrument main body 50 is attached to the rotary shaft 8, and the surveying instrument main body 10 together with the rotary shaft 8 can rotate in the direction of arrow A with respect to the base 5 as shown in FIG.
The surveying instrument main body 50 has a fine adjustment knob 55 for finely adjusting the elevation angle.
And a fine adjustment knob 56 for finely adjusting the horizontal angle.

The surveying instrument main body 50 is formed with two bulging portions 51 and 52 bulging upward from both sides, and a lens barrel portion 60 is disposed in a recess 53 between the bulging portions 51 and 52. Has been done. The side plates 61, 62 of the lens barrel portion 60 are provided with horizontal shafts 63, 64 extending in the horizontal direction. The horizontal shafts 63, 64 are attached to the side plates 65, 66 of the bulging portions 61, 62 by bearings 67. The lens barrel portion 60 is rotatably held via the shafts 68 and 68 so that the lens barrel portion 60 can rotate as indicated by an arrow B in FIG.

The rotation of the surveying instrument main body 50 depends on the rotation of the surveying instrument main body 50.
It is performed by a motor 70 provided inside, and the motor 70 is attached to a side plate 71 of the surveying instrument main body 50. A gear 73 is provided on a drive shaft 72 of the motor 70, and the gear 73 meshes with a spur gear 74 fixed to the bearing portion 6. The spur gear 74 is concentric with the rotary shaft 8. Accordingly, the spur gear 74 is driven by the motor 70.
The gear 73 rotates around the
Will rotate around the axis (vertical axis) 8a together with the rotary shaft 8.

On the upper part of the rotary shaft 8, there is a scale plate 7 for horizontal angle scale.
5 is attached, and a horizontal angle reading encoder 76 for reading the horizontal angle scale is provided on the spur gear 74. The horizontal angle reading encoder 76 generates a pulse each time the horizontal angle graduation plate 75 makes a minute angle rotation.

The rotation of the lens barrel portion 60 is performed by a motor 80 provided on the bulging portion 52. A drive shaft 81 of the motor 80 is provided with a gear 82, and the gear 82 is fixed to the horizontal shaft 64. It meshes with the spur gear 83. As a result, the spur gear 83 is rotated by the drive of the motor 80, and the horizontal shafts 63 and 64 are rotated together with the lens barrel 60.

A scale plate 84 for elevation marks is attached to the horizontal shaft 63, and an elevation reading encoder 85 for reading the elevation marks is provided in the bulging portion 51. The elevation angle reading encoder 85 generates a pulse every time the elevation angle graduation plate 84 rotates by a small angle.

As shown in FIGS. 3 and 6, the surveying instrument main body 50 is provided with a key operating portion 90, and a bubble tube 93 is provided above the key operating portion 90. The key operation unit 90 includes a display unit (display means) including a liquid crystal panel.
A keyboard 91 and a keyboard 92 are provided. The display unit 91 has a horizontal angle H, a vertical angle V, a surveying instrument main body 50 or a lens barrel unit 60.
The angle (+90 degrees, -90 degrees, 180 degrees) for rotating is displayed.

The keyboard 92 has key switches (operation switches) F1 to F3 corresponding to those angles and a horizontal angle /
A key switch F4 for changing the elevation angle is provided, and the key switch F1 is used when the angle is changed to the horizontal angle.
When the key is pressed, the surveying instrument main body 50 is rotated by +90 degrees, when the key switch F2 is pressed, the surveying instrument main body 50 is rotated by -90 degrees, and when the key switch F3 is pressed, the surveying instrument main body 50 is rotated by 180 degrees.
Is rotated once. Similarly, when the key switch F4 is pressed while the elevation angle is changed, the lens barrel portion 60 is rotated by 180 degrees.

F5 to F7 are key switches for setting the rotational speeds of the surveying instrument main body 50 and the lens barrel portion 60 to high, medium and low, and T1 to T4.
Is a key switch for inputting the rotation direction. For example, while T1 is being pressed, the surveying instrument main body 50 rotates to the left. When the key switches T1 and T3 and the key switches F1 to F3 are pressed at the same time, the angle (+90 degrees,-) displayed on the display unit 91 is displayed.
Numerical values of 90 degrees and 180 degrees) are changing.
For example, if the key switch T1 and the key switch F1 are pressed at the same time, the displayed value of +90 degrees increases,
When the key switch T1 and the key switch F1 are pressed at the same time, the displayed value of +90 degrees is decreased. These increased and decreased angles are stored in the non-volatile memory and can be used for the next measurement.

As shown in FIG. 7, the lens barrel portion 60 is provided with a collimating optical system 9, a distance measuring optical system 10, and an automatic tracking optical system 11. The collimation optical system 9 plays a role of collimating the corner cube 2, and includes a cover glass 12 and an objective lens 1.
3, an optical path combining prism 14 as a first reflecting member, an optical path splitting prism 15, a focusing lens 16, a Porro prism 1
7, a focusing mirror 18, and an eyepiece lens 19. The objective lens 13 has a through hole 20. The optical path combining prism 14 constitutes a part of the tracking projection system 11A of the automatic tracking optical system 11.

The automatic tracking optical system 11 plays the role of automatically tracking the object to be measured by scanning the main body of the surveying instrument by scanning the object to be measured in the vertical and horizontal directions. Meter lens 22, horizontal deflection element 23, vertical deflection element 24, reflection prism 2
It has 5, 25 '.

The laser diode 21 emits infrared laser light (wavelength 900 nanometer) as tracking light,
The collimator lens 22 makes the infrared laser light (measurement light beam) into a parallel light beam. Acousto-optic elements are used for the horizontal deflection element 23 and the vertical deflection element 24. As shown in FIG. 8, the horizontal deflection element 24 deflects the infrared laser light in the horizontal direction H, and the vertical deflection element 25. Deflects the infrared laser light deflected in the horizontal direction H in the vertical direction V. The optical path combining prism 14 is an optical axis O of the tracking and projecting system 11A.
1 is the optical axis O of the collimating optical system 9 which is the optical axis of the objective lens 13.
And has a reflecting surface 14a.

The reflecting surface 14a transmits light having a wavelength of 850 nanometers or less and reflects light having a wavelength of 900 nanometers. The infrared laser light deflected in the horizontal direction H and the vertical direction V is reflected by the reflecting prisms 25, 25 'and the reflecting surface 1.
It is reflected by 4a, guided to the objective lens 13, emitted through the through hole 20 to the outside of the surveying instrument body 8, and the corner cube 2 is scanned.

As shown in FIG. 9, the scanning of the corner cube 2 is carried out by the procedure of scanning in the horizontal direction H, and then scanning in the horizontal direction H while deflecting in the vertical direction V, and the reference numeral 26 designates the scanning. The beam spot of the infrared laser light P in the plane including the corner cube 2 is shown.

The infrared laser light P reflected by the corner cube 2 is collected by the entire area of the objective lens 13 and guided to the optical path splitting prism 15. The optical path splitting prism 15 has a reflecting surface 15a and a reflecting surface 15b. Reflective surface 15
a reflects the infrared laser light P toward the tracking light receiving system 11B of the automatic tracking optical system 11. The tracking light receiving system 11B is roughly composed of a noise light removing filter 27 and a light receiving element 28, the optical axis O2 of the tracking light receiving system 11B is also aligned with the optical axis O of the collimation optical system 9, and the optical path dividing prism 15 is red. It serves as a second reflecting member that reflects the outer laser light toward the tracking light receiving system 11B.

The distance measuring optical system 10 includes a light projecting system 29 and a light receiving system 30.
The light projecting system 29 has a laser light source 31, and the light receiving system 30 has a light receiving element 33. The light projecting system 29 and the light receiving system 30 have a triangular prism 32. Laser light source 30
Emits an infrared laser light wave (measurement light flux) as a distance measurement light flux. The wavelength is 800 nanometers, which is different from the wavelength of the infrared laser light P. The infrared laser light wave is reflected by the reflecting surface 32a of the triangular prism 32 and guided to the reflecting surface 15b of the optical path splitting prism 15.

The reflecting surface 15b plays a role of transmitting light in the visible region and reflecting light in the infrared region including light having a wavelength of 820 nanometers. The infrared laser light wave guided to the reflecting surface 15b passes through the reflecting surface 15a, passes through the lower half region 34 of the objective lens 13 as shown in FIG. 10, and is emitted to the outside of the surveying instrument main body 8 as a plane wave. To be done.

The infrared laser light wave is reflected by the corner cube 2 and passes through the cover glass 12 and the objective lens 1
3, the light is condensed by the upper half area 35 of the objective lens 13, transmitted through the reflecting surface 15a of the optical path dividing prism 15 and guided to the reflecting surface 15b, and the reflecting surface 15b reflects the reflecting surface 32b of the triangular prism 32. To the light receiving element 3
Converges to 3. The light receiving output of the light receiving element 33 is input to the automatic distance measuring circuit 103 (see FIG. 11), and the distance to the corner cube 2 is measured.

Therefore, the optical path splitting prism 15 makes the optical axis O3 of the distance measuring optical system coincide with the optical axis O of the collimating optical system.
It also functions as a reflection member.

The light flux in the visible region is the objective lens 2
0, the optical path splitting prism 15, the focusing lens 16, and the Porro prism 17 are guided to the focusing mirror 18, and an image in the vicinity of the object including the object for distance measurement is adjusted to the focusing lens 18 by adjusting the focusing lens 16. The measuring person can collimate the object to be measured by looking through the visible image formed on the focusing mirror 18 through the eyepiece lens 19.

FIG. 11 is a block diagram showing the structure of the control system of the surveying instrument. In FIG. 11, reference numeral 100 denotes a laser diode 21 for emitting a laser beam or a light receiving element 2.
A light emitting / light receiving circuit for outputting a light receiving signal from 8, 101 is an automatic collimating circuit for detecting the position of the measuring object based on the light receiving signal of the light receiving element 28, and 102 is a laser light source 31 for emitting a laser beam or receiving a light beam. A light emitting / light receiving circuit that outputs a light receiving signal from the element 33, and an automatic distance measuring circuit 103 that measures the distance to the object to be measured based on the light receiving signal of the light receiving element 33.

Reference numeral 104 is a memory for storing the distance obtained by the automatic distance measuring circuit 103 and the angles set by the key switches F1 to F4, T1, T3, and 110 is the position obtained by the automatic collimating circuit 101 at the center of the telescope. Control the motor to automatically track the object to be measured, and use key switches F1 to F
7, Surveying instrument main body 50 and lens barrel 6 based on the operation of T1 to T4
It is a control device including a microcomputer for rotating 0. Then, the control device 110 and the motor 7
The rotating means is constituted by 0 and 80.

Further, 111 is an external input / output circuit for outputting the data and the like stored in the memory to the external computer 112, and 113 is an automatic forward / reverse observation switch.
When 13 is pressed, the surveying instrument main body 50 and the lens barrel 60 are
Is rotated once. Reference numerals 114 and 115 are drivers for driving the motors 70 and 80.

Next, the operation of the surveying instrument 3 constructed as above will be described.

First, the surveying instrument 3 is installed on the surveying table 1. Next, while watching the bubble tube 93, the base 5 is adjusted by the leveling screws S, S, S so that the base 5 becomes horizontal.
When this adjustment is completed, the key switch F4 is operated to switch to the horizontal angle and the key switch F3 is pressed. When this key switch F3 is pressed, the controller 110
Drives the motor 70 to rotate the surveying instrument body 50. The horizontal scale graduation plate 75 is rotated together with the surveying instrument main body 50, and a pulse is generated from the horizontal angle reading encoder 76 each time the horizontal scale graduation plate 75 is rotated by a small angle.

The control unit 110 counts the number of pulses, and when the counted number reaches a number corresponding to a rotation angle of 180 degrees, the driving of the motor 70 is stopped. As a result, the surveying instrument main body 50 is rotated 180 degrees.

Then, similarly to the above, the leveling screws S, S, S are adjusted to bring the base 5 into a horizontal state. When this adjustment is completed, press the key switch F2. When the key switch F2 is pressed, the motor 70 is driven in the same manner as described above, the surveying instrument main body 50 is rotated by +90 degrees, and the drive of the motor is stopped. Then, the leveling screws S, S, S are adjusted to bring the base 5 into a horizontal state.

After this adjustment, the key switch F3 is pressed again.
Press to rotate the surveying instrument main body 50 by 180 degrees, and adjust the leveling screws S, S, S to make the base 5 horizontal. This completes the leveling work.

In this way, the leveling work is performed by the key switch F.
If you press 1 to F3, the surveying instrument main body 50 automatically turns 90 degrees or 1
Since it rotates to 80 degrees and stops, the surveying instrument main body 50
Since it is not necessary to keep pressing the key switches F1 to F3 until it is rotated 0 degree or 180 degrees, the leveling work is simple and very convenient.

When the leveling work is completed, the surveying instrument main body 50 may be aimed at the object to be measured and laser light may be emitted from the laser light source 31 to measure the distance to the object to be measured.

In the above embodiment, the surveying instrument main body 50 is displayed on the display unit.
I am trying to display the rotation angle of
Key switch F1 with an angle to rotate from 1 to F3
When ~ F3 is pressed, the surveying instrument main body 50 may be rotated by that angle. In this case, the rotation angle will be fixed.

[0047]

According to the present invention, when the operation switch is pressed, the rotating means rotates the surveying instrument main body by a predetermined angle. Therefore, the surveying instrument main body rotates by a predetermined angle without continuously pressing the operation switch. Therefore, the operation of rotating the surveying instrument main body becomes simple.

[Brief description of drawings]

FIG. 1 is a side view showing an installation state of a surveying instrument according to the present invention,

FIG. 2 is a plan view showing an installation state of the surveying instrument according to the present invention,

FIG. 3 is a perspective view showing an operating side (back side) of the surveying instrument according to the present invention,

FIG. 4 is a perspective view showing the front side of the surveying instrument according to the present invention,

FIG. 5 is a sectional view showing a rotation mechanism of the surveying instrument,

FIG. 6 is a front view showing an operation unit,

FIG. 7 is an optical layout diagram showing an optical system of the surveying instrument,

FIG. 8 is a diagram for schematically explaining deflection by an automatic tracking optical system.

FIG. 9 is a schematic diagram showing an example of scanning by an automatic tracking optical system.

10 is a plan view of the objective lens shown in FIG.

FIG. 11 is a block diagram showing a configuration of a control system of the surveying instrument,

FIG. 12 is a front view showing a conventional surveying instrument.

[Explanation of symbols]

 50 main body of surveying instrument 60 lens barrel portion 70 motor 91 display portion (display means) 110 control device F1 to F3 key switch (operation switch)

Front page continued (72) Inventor Ikuo Ishinabe 75-1 Hasunumacho, Itabashi-ku, Tokyo Topcon Co., Ltd. (72) Inventor Ryoji Musashi 75-1 Hasunumacho, Itabashi-ku, Tokyo Topcon Co., Ltd. (72 ) Inventor Hiroshi Inaba 75-1 Hasunuma-cho, Itabashi-ku, Tokyo Topcon Co., Ltd. (72) Inventor Masahiro Saito 75-1 Hasunuma-cho, Itabashi-ku, Tokyo Topcon Co., Ltd.

Claims (2)

[Claims] 1. A surveying instrument comprising a surveying instrument main body rotatably provided around a vertical axis and an optical system for emitting a measurement light beam toward a measurement object and receiving a reflected light beam reflected by the measurement object. In the machine, an operation switch for rotating the surveying instrument main body by a preset predetermined angle, and a rotation means for rotating the surveying instrument main body by the preset predetermined angle when the operation switch is pressed are provided. A surveying instrument characterized by that. 2. A surveying instrument comprising a surveying instrument main body rotatably provided around a vertical axis and an optical system for emitting a measurement light beam toward a measurement object and receiving a reflected light beam reflected by the measurement object. In the machine, a display means for displaying an angle for rotating the surveying instrument body in a predetermined direction, an operation switch corresponding to the angle, and the surveying instrument by the angle displayed on the display means when the operation switch is operated. A surveying instrument, comprising: a rotating means for rotating the main body.