JP2002213951A - Guide laser beam direction setting system - Google Patents

Abstract

(57) [Summary] (with correction) [PROBLEMS] To provide a guide laser light direction setting system capable of facilitating a setting operation of a guide laser light in a horizontal direction. SOLUTION: A guide laser light irradiation device 20 which is arranged at a reference point 77 and irradiates the guide laser light P while being inclined in the vertical and horizontal directions with respect to a horizontal direction, and a first laser light irradiation device arranged vertically above the reference point 77 Reflection mirror 75 and reference point 7
A second reflecting mirror 76 disposed vertically above a reference point 83 different from 7; and irradiating the mirror with surveying laser light and receiving the reflected laser light from each reflecting mirror to determine the position of each reflecting mirror. A surveying instrument 101 to be specified;
A guide mirror 76 'is provided between the mirrors and guides the irradiation direction of the guide laser beam P in a vertical plane Z determined by the two mirrors. The irradiation direction of the guide laser beam P is positioned in the vertical plane Z by determining whether or not the guide laser light P is positioned in the vertical plane Z.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a guide laser beam direction setting system for performing a construction work using a guide laser beam together with a surveying operation.

[0002]

2. Description of the Related Art Conventionally, as an example of a construction work involving a surveying work, an installation work of a pipe (fume pipe) shown in FIG. 13 is known. In FIG. 13, 1 is the ground,
Reference numerals 2 and 3 denote vertical holes, and reference numeral 4 denotes a groove connecting the vertical hole 2 and the vertical hole 3, and a pipe 5 is provided in the groove 4.

[0003] Manholes (not shown) are provided in the vertical holes 2 and 3 after the pipe 5 is installed, and the pipes 5 are used for a flow path of a liquid or a liquid material such as water and sewage. The pipe 5 is installed in the groove 4 with a predetermined gradient θ. Also, the pipe 5 is required to be installed straight.
This is because if the pipe 5 is provided in a meandering manner in the right, left, up and down directions, there is a risk that the liquid material may clog the pipe 5 or leak into the ground. Therefore, a reference line is required when installing the pipe 5.

A guide laser beam has recently been used for this type of reference line. Hereinafter, the procedure of pipe installation work using this guide laser beam will be described.

[0005] The position where the manhole should be installed and the distance and direction between the manholes are determined by surveys based on construction drawings and known points. On the basis of this survey, the vertical hole 2, the vertical hole 3, and the groove 4 are excavated, and the reference points 7A, 7
B is set.

[0006] In the vertical hole 2, the center of rotation of the guide laser beam irradiation device 6 is set on the reference point 7. The center of rotation of the guide laser beam irradiation device 6 coincides with the emission point of the laser beam. A theodolite 8 is installed via a support 9 vertically above the center of rotation of the guide laser beam irradiation device 6. On a vertical plane including the reference point 7A of the manhole of the vertical hole 2 and the reference point 7B of the manhole of the vertical hole 3, and behind the 7B, that is, on the ground opposite to 7A, the pole 11 is set up based on the survey. Have been.

[0007] First, the operator has a theodolite 8
The telescope 8a is turned horizontally by using the
Collimate 1. Then, the telescope 8a is turned in the elevation angle direction in a vertical plane including the pole 11, and the place where the target 12 is to be placed is collimated based on the construction drawing. In addition,
The angle of the telescope 8a in the elevation angle direction is known in advance based on the construction plan.

[0008] The operator is required to place the center of the target 12 on the telescope 8.
The target 12 is placed vertically above the reference point 7B of the vertical hole 3 so as to coincide with the collimation line a. Since the target 12 has the diffusion plate 12 a, the operator can visually recognize the guide laser light hitting the target 12 from the guide laser light irradiation device 6 side.

Next, the operator operates the guide laser beam irradiation device 6.
To rotate the guide laser beam in the horizontal direction so that the center of the guide laser beam coincides with the center of the target 12.

Subsequently, in order to incline the guide laser light to the inclination angle of the pipe 5, the inclination angle is input to the guide laser light irradiation device. Then, the guide laser beam irradiation device 6
To rotate the guide laser beam in the vertical direction.
Thus, the horizontal setting operation and the vertical setting operation of the guide laser light are completed, and the reference line L is set by the guide laser light.

Thereafter, the pipe 5 is installed via the gantry 13 so that the center of the pipe 5 is located at the center of the reference line L, and the manholes are connected by the pipe 5. After the facility work of the pipe 5, the pipe 5 is buried.

[0012]

However, in this conventional construction work, the pole 11 is collimated using the theodolite 8 to set the horizontal direction of the guide laser beam, and the horizontal direction of the guide laser beam is set. When a person who is unfamiliar with the operation of the theodolite 8 performs work because he must perform the work,
There is a problem that a survey error increases.

In particular, in the case of the installation work for connecting the pipes 5 between the manholes, the surveying work must be performed by installing the theodolite 8 on the manhole where the scaffold is unstable. There is a problem that skill is required and it takes time to set the guide laser beam in the horizontal direction.

The present invention has been made in view of the above circumstances, and has as its object to provide a guide laser beam direction setting system capable of facilitating the setting operation of the guide laser beam in the horizontal direction. I do.

[0015]

According to a first aspect of the present invention, there is provided a guide laser light direction setting system which is disposed at a first known point and which is vertically moved with respect to a horizontal direction. A guide laser light irradiation device that irradiates a guide laser beam while being inclined in the left-right direction, a first reflecting mirror disposed vertically above the first known point, and vertically above a second known point different from the first known point Irradiating the first reflecting mirror and the second reflecting mirror with laser light and receiving the reflected laser light from each of the reflecting mirrors to position the first reflecting mirror and the second reflecting mirror. And a surveying instrument for determining the position of the guide laser beam, and the irradiation direction of the guide laser light in a vertical plane determined by the first and second reflection mirrors is disposed between the first and second reflection mirrors. Lead to Prepare and guiding mirror for, induction mirror by surveying instrument is characterized by positioning the irradiating direction of the guide laser beam in a vertical plane by determining whether located in a vertical plane.

According to the first aspect of the present invention, there is no need to install a surveying instrument on a manhole with an unstable scaffold and perform surveying work, so that a person unfamiliar with the operation of the surveying instrument performs work. Also, the direction of the guide laser beam can be set in a short time without increasing the measurement error.

According to a second aspect of the present invention, in the guide laser light direction setting system, the second reflecting mirror and the guiding mirror are the same. Features.

According to a third aspect of the present invention, there is provided a guide laser beam direction setting operation system, wherein the first reflection mirror, the second reflection mirror, and the guide mirror are the same. It is characterized by being. According to the invention described in claim 2 or 3,
Since the same reflection mirror is used, it is not necessary to prepare many reflection mirrors, and the cost can be reduced.

According to a fourth aspect of the present invention, there is provided a guide laser light direction setting system according to the first aspect, wherein the surveying instrument transmits position measurement data of each reflection mirror. An automatic tracking device that tracks the device and the guiding mirror is provided, and a position survey data receiving device that receives each position survey data on the side of the guiding mirror, and the guiding mirror is located in a vertical plane based on each position survey data Calculating means for calculating whether or not the position is provided.

According to the fourth aspect of the present invention, the surveying instrument includes the position survey data transmitting device and the automatic tracking device, and the position survey data receiving device and the calculating means are provided on the guide mirror side. Therefore, while staying at the side of the guiding mirror, the position information of each reflecting mirror is confirmed, tracking by the surveying instrument when the guiding mirror is moved, and the guiding mirror is the first.
In addition, it is possible to perform operations such as checking whether or not it is located in a vertical plane determined by the second reflection mirror.

According to a fifth aspect of the present invention, there is provided a guide laser light direction setting system which is arranged at a first known point and irradiates the guide laser light by inclining vertically and horizontally with respect to a horizontal direction. A first reflection mirror disposed vertically above the first known point, a laser disposed at a second known point different from the first known point, irradiating the first reflection mirror with laser light, and reflecting by the reflection mirror A surveying instrument for determining the position of the first reflecting mirror by receiving light;
Preparing a guide mirror disposed between the first reflecting mirror and the surveying instrument and for guiding the irradiation direction of the guide laser light into a vertical plane determined by the first reflecting mirror and the surveying instrument; The irradiation direction of the guide laser beam is positioned in the vertical plane by making the machine determine whether the guide mirror is positioned in the vertical plane.

According to the fifth aspect of the present invention, there is no need to install a surveying instrument on a manhole with an unstable scaffold and perform surveying work, so that a person unfamiliar with the operation of the surveying instrument works. Also, the direction of the guide laser beam can be set in a short time without increasing the measurement error.

According to a sixth aspect of the present invention, in the direction setting system for a guide laser beam according to the first or fifth aspect, the guide laser beam irradiating device may be configured so that the reflected light of the guide laser beam is reflected by the guide laser beam irradiation device. A target for reflecting the guide laser light is provided vertically above the guiding mirror, and the guide laser light irradiation device scans the target based on the guide laser light and reflects the target. The light is received by the light receiving section to detect that the guide laser light is applied to the center of the target.

According to the sixth aspect of the present invention, since the guide laser beam can be easily irradiated toward the center of the target provided vertically on the guide mirror, the setting operation of the guide laser beam is easy. Becomes

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a configuration and a target of a guide laser beam irradiation apparatus used for a guide laser beam direction setting work method of the present invention will be described.

[Configuration of Guide Laser Light Irradiation Apparatus and Configuration of Target] FIG. 1 is an external view of a guide laser light irradiation apparatus 20 according to the present invention. The guide laser light irradiation device 20 emits the guide laser light P. A light receiving window 21 is provided at the front of the guide laser beam irradiation device 20. This light receiving window 21 is also used as an optical remote control light receiving unit and a guide laser light reflection light receiving unit.

Reference numeral 23 is a target. The target 23 has a diffusing surface 24 and a pair of retroreflective surfaces 25 as shown in FIG. The diffusion surface 24 diffuses the guide laser light, so that the operator can visually recognize the guide laser light P hitting the diffusion surface 24. The pair of retroreflective surfaces 25 are provided at predetermined intervals.

The pair of retroreflective surfaces 25 reflect the reflected laser light of the guide laser light P impinging thereon in the original direction. This reflected laser light is received by a photoelectric conversion element described later through a light receiving window 21.

The guide laser light irradiation device 20 has a reflected light detection circuit 26 shown in FIG. Reflected light detection circuit 26
Are an oscillator 27, an LD drive circuit 28, an LD light emitting section 29,
A photoelectric conversion element 30 as a guide laser beam reflection / reception unit;
It comprises a modulation signal detection unit 31, a double pulse discrimination unit 32, a control unit 33, a motor drive circuit 34, and a horizontal angle adjustment motor 35.

The LD drive circuit 28 modulates and drives the LD light emitting section 29 based on the oscillation signal of the oscillator 27. Thereby, the guide laser light P is irradiated toward the target 23. When the guide laser light P is reflected by the retroreflective surface 25, the reflected laser light P 'is reflected in the original direction and received by the photoelectric conversion element 30.

The modulation signal detector 31 has a function of distinguishing between the extraneous light and the reflected laser light P ', and detects a pulse Q (see FIG. 2B) corresponding to the reflected laser light P'. The double pulse determination unit 32 determines whether the pulse Q output from the modulation signal detection unit 31 is a double pulse.

When the double pulse discriminating unit 32 detects a double pulse, the control unit 33 drives the motor drive circuit 34 to drive the horizontal angle adjustment motor 35 in the opposite direction to direct the guide laser beam P to the center of the target 23. .

That is, as shown in the flow chart of FIG. 4, the guide laser beam irradiation device 20 is driven to start scanning the target 23 (S.1), and the horizontal angle adjusting motor 35 is rotated in a fixed direction to reflect light. When the rising of the pulse Q based on the laser beam P 'is detected (S.2), the double-pulse determining unit 32 determines whether the pulse Q is a double pulse (S.3). The interval is specified (S.4), and the control unit 33 calculates the center position of the target 23 (S.5). Thus, the control unit 33 inverts the horizontal angle adjustment motor 35 so that the irradiation direction of the guide laser light P is directed to the center position of the target 23 (S.6).

The search for the center position of the target 23 is as follows:
It can also be performed using an optical remote control device. The search for the center position of the target by the optical remote control device will be described later.

Inside the guide laser beam irradiation device 20,
As shown in FIGS. 5 to 7, a laser light oscillation device 40 is provided. The laser light oscillator 40 is provided on a swing frame 42 that can be tilted about a horizontal axis 41. The swing frame 42 is supported by a main frame 43 via a vertical shaft 44. The swing frame 42 is rotatable in a horizontal direction about a vertical axis 44.

The horizontal shaft 41 is provided with a tilting frame 45. A tilting mechanism 46 is connected to the tilting frame 45. The tilting mechanism 46 is provided with a tilt sensor (indicated by reference numeral 55 in FIG. 8) indicating a horizontal state. The tilting mechanism 46 is provided integrally with the support of the laser light oscillation device 40 and is tilted integrally with the laser light oscillation device 40.

An encoder 47 for detecting the inclination angle of the laser light oscillator 40 is attached to the horizontal shaft 41.
The rotation angle detection signal of the encoder 47 is input to the motor drive unit 54 shown in FIG.

A horizontal angle adjusting mechanism 49 is connected to the swing frame 42. Laser light oscillation device 40
Is provided with a vertical angle adjusting mechanism 50 connected thereto. The horizontal angle adjustment mechanism 49 is driven by the horizontal angle adjustment motor 35. Thereby, the laser light oscillation device 40 is rotated in the horizontal direction. As a result, the guide laser light P is scanned in the horizontal direction.

The vertical angle adjustment mechanism 50 includes a vertical angle adjustment motor 5
1 driven. Thereby, the laser light oscillator 40 is rotated in the vertical direction. The tilting mechanism 46 is tilted in the vertical direction together with the laser light oscillator 40 by the vertical angle adjusting mechanism 50. The tilting mechanism 46 is driven by a gradient setting motor 52, and sets the vertical gradient of the guide laser beam P. The vertical angle adjustment motor 51 is driven by a motor drive unit 53 shown in FIG. 8, and the gradient setting motor 52 is driven by a motor drive unit 54.

The motor driving units 53 and 54 are controlled by the control unit 33 together with the motor driving unit 34. The detection signal of the tilt sensor 55 is input to the control unit 33.
The control unit 33 is connected to an operation panel 56 for starting and stopping the guide laser beam irradiation device 20 and setting a gradient of the guide laser beam, a display unit 57 for displaying a set value of the gradient, and the photoelectric conversion element 30.

At the lower end of the tilting frame 45, a forked portion is provided as shown in FIG. A vertical beam emitting portion 58 is provided at the forked portion. A laser beam emitting portion 59 is provided on one of the forked portions, and a reflecting mirror 60 is provided on the other of the forked portions. Further, a beam splitter 61 is provided between the laser beam emitting section 59 and the reflecting mirror 60. The beam splitter 61 divides the laser beam emitted from the laser beam emitting unit 59 into two in the vertical direction, and the laser beam is reflected vertically upward and vertically downward, and this laser beam is used for centripetal. Figure 6
, The symbol LV indicates a laser beam directed vertically upward.

The guide laser light irradiation device 20 can irradiate the guide laser light P in the vertical and horizontal directions with reference to the horizontal direction. For details of the configuration of the guide laser beam irradiation device 20, see, for example, Japanese Patent Application Laid-Open No. 9-257377.

[First Embodiment of Setting Operation of Irradiation Direction of Guide Laser Light] Next, the first embodiment of the setting operation of the irradiation direction of guide laser light P by the guide laser light direction setting system according to the present invention is shown in FIG. It will be described with reference to FIG.

In FIGS. 9A and 9B, reference numeral 70 denotes a vertical hole dug in the ground 72, 71 denotes a vertical hole to be dug in the ground 72, and 73 denotes a manhole. Manhole 7
3 is schematically shown. Between the vertical hole 70 and the vertical hole 71, a groove 74 for burying a pipe is dug halfway. A manhole is installed in the vertical hole 71 after it is dug.

In the vertical hole 70, the center of rotation of the laser beam oscillator 40 inside the laser beam irradiation device 20 is located in the manhole 73.
The guide laser beam irradiation device 20 is installed so as to coincide with the reference point 77 (first known point) as the center position of the laser beam. The position of the reference point 77 is determined in advance by surveying according to the construction drawing. The guide laser beam irradiation device 20 irradiates the laser beam LV vertically upward.

The first reflecting mirror 75, the second reflecting mirror 76, the guiding mirror 76 'and the surveying instrument 101 are used for setting the irradiation direction of the guide laser light P.

The first reflecting mirror 75 is used for a surveying instrument 1 described later.
It is installed via the support base 78 so that the reflection position for reflecting the survey laser light from 01 is located vertically above the center of rotation of the guide laser light irradiation device 20, that is, on the laser beam LV.

The second reflection mirror 76 is mounted on the pole 81 so that the reflection position is located vertically above the reference point 83 (second known point) as the center position of the vertical hole 71. The position of the reference point 83 is determined in advance by surveying according to the construction drawing. Further, the position of the second reflection mirror 76 may be on an extension line connecting the reference point 77 and the reference point 83.

The guiding mirror 76 ′ is first and second reflecting mirrors 75 and 76 by the surveying instrument 101 as described later.
Is measured and then placed in the groove 74. The guiding mirror 76 'is attached to the pole 81'.

The pole 81 ′ has a position survey data receiving device 82 for receiving the position survey data transmitted from the surveying instrument 101, and based on the position survey data,
A data collector 104 is provided as a calculating means for calculating whether or not the guiding mirror 76 'is located in a vertical plane determined by the first reflecting mirror 75 and the second reflecting mirror 76. Further, a target 23 is provided on the pole 81 'at a position corresponding to the gradient angle of the guide laser beam P based on the construction plan.

The first reflecting mirror 75 and the second reflecting mirror 76
As the guiding mirror 76 ', for example, a reflecting prism such as a well-known corner cube is used.

FIG. 9A and FIG. 9B
As shown in the figure, the first reflection mirror 75 and the second reflection mirror 7
6 is set at a point 102 where the view can be seen. This surveying instrument 10
FIG. 10 is a block diagram showing a schematic configuration of the first embodiment.

The surveying instrument 101 includes a control operation unit 116, a distance measuring unit 151, an angle measuring unit 154, and a focusing unit 122.
The control operation unit 116 includes a storage unit 121, a data input / output unit 1
23, an operation input unit 126, a display unit 127, a vertical drive motor 170, and a horizontal drive motor 180 are connected. In the figure, reference numeral 103 denotes a reflection mirror as an object to be measured.

The distance measuring section 151 controls the driving of the light emitting section 152 and irradiates the reflecting mirror 103 with a measuring laser beam. The reflected laser light reflected by the reflection mirror 103 is received by the light receiving unit 153, and when the received light signal is input to the distance measurement unit 151, the distance measurement unit 151 calculates the distance to the reflection mirror 103. The calculation result is output to the control calculation unit 116
The control calculation unit 116 displays the calculated distance to the reflection mirror 103 on the display unit 27.

The angle measuring section 154 receives a detection signal from a vertical angle encoder 155 for detecting an inclination angle of a collimating telescope section (not shown) for collimating the reflection mirror 103 as an object to be measured. At the same time, a detection signal is input from a horizontal angle encoder 156 that detects the horizontal rotation angle of the collimating telescope unit, and the angle in the collimating direction when the collimating telescope unit collimates the reflecting mirror 103 is measured. . The measurement result is input to the control operation unit 116, and the control operation unit 116
Displays the measured angle of the collimating direction of the reflection mirror 103 on the display unit 27.

The focusing section 122 is for performing automatic focusing of the collimating telescope section.

The storage unit 121 stores a work procedure program relating to a specific work procedure such as stakeout, and stores work conditions and the like input from the operation input unit 126.

In the surveying instrument 101, the irradiation direction of the surveying laser beam and the collimating direction of the collimating telescope are adjusted in advance so that they are parallel to each other. The distance is measured, and the collimating direction of the reflecting mirror 103 is measured by the collimating telescope unit, so that the position of the reflecting mirror 103 with respect to the surveying instrument 101 can be specified relatively.

The surveying instrument 101 includes a position surveying data transmitting device 105 for transmitting the position measuring data of the reflection mirror to the position surveying data receiving device 82 and an automatic tracking device 106.
(See FIG. 9).

The surveying instrument 101 includes an automatic tracking device 106
, The vertical drive motor 170 and the horizontal drive motor 180 can be driven to scan the reflection mirror 103 as a measurement object in the vertical and horizontal directions, thereby enabling automatic tracking. . This surveying instrument 101
For details of the configuration, see, for example, Japanese Patent Application Laid-Open No. 5-32257.
See No. 0 publication.

FIG. 11 is a flowchart showing the procedure for setting the irradiation direction of the guide laser beam P.

First, the surveying instrument 101 is operated wirelessly or the like to measure the position of the first reflecting mirror 75 (S.1).
1). That is, by irradiating the surveying laser light toward the first reflecting mirror 75, the distance Δ
L1, the direction angle Δφ1, and the elevation angle Δθ1 are measured, and the measured position measurement data (ΔL1, Δφ1,
Δθ1). The direction angle is an angle between the collimation direction of the reflection mirror and an arbitrary reference direction in a horizontal plane centered on the surveying instrument 101, and in this embodiment, FIG.
With reference to the direction right from the middle surveying instrument 101, for example, Δφ
1 is as shown in FIG. The elevation angle is an elevation angle with respect to a horizontal plane including the surveying instrument 101, for example, Δ
θ1 is as shown in FIG.

Subsequently, the surveying instrument 101 is operated by radio or the like to measure the position of the second reflecting mirror 76 (S.1).
2). That is, the surveying laser light is emitted toward the second reflection mirror 76, and the distance ΔL2, the direction angle Δφ2, and the elevation angle Δθ2 to the second reflection mirror 76 are measured as in the case of the first reflection mirror 75. This is defined as position measurement data (ΔL2, Δφ2, Δθ2) of the second reflection mirror 76.

The position measurement data (ΔL1, Δφ1, Δθ1) of these first and second reflection mirrors, (ΔL2, Δφ1)
2, Δθ2) is transmitted by the positioning data transmitter 105 to the positioning data receiver 82 provided on the pole 81 ′ (S.13).

The data collector 104 provided on the pole 81 ′ is connected to the position measurement data receiving device 82 and receives the position measurement data (ΔL 1, ΔL 1) of the first reflection mirror 75.
φ1, Δθ1) and the position measurement data (ΔL2, Δφ2, Δθ2) of the second reflection mirror 76, the vertical plane Z including the first reflection mirror 75 and the second reflection mirror 76 is determined (S.14). ). Since the first reflection mirror 75 and the second reflection mirror 76 are located vertically above the reference point 77 and the reference point 83, respectively, the vertical plane Z includes the reference point 77 and the reference point 83 in the plane. In.

Next, the pole 81 'is set upright in the groove 74, and the guiding mirror 76' is installed. The surveying instrument 101 is operated by radio or the like to measure the position of the guiding mirror 76 '(S.15). That is, the surveying laser light is emitted toward the guiding mirror 76 ', and the distance ΔL3, the direction angle Δφ3, and the elevation angle Δθ3 to the guiding mirror 76' are measured.
The position measurement data (ΔL3,
Δφ3, Δθ3).

The position measurement data (ΔL3, Δφ3, Δθ3) of the guiding mirror 76 ′ is also transmitted by the position measurement data transmission device 105 to the position measurement data reception device 82 provided on the pole 81 ′ (S.16). ). Data collector 104 connected to position survey data receiver 82
Is the position measurement data (ΔL) of this guiding mirror 76 ′.
3, Δφ3, Δθ3), the guiding mirror 76 ′
Is determined by calculating whether or not is located in the vertical plane Z (S.17).

On the display section 104a of the data collector 104, a schematic diagram showing the coordinates or positional relationship of the vertical plane Z and the guiding mirror 76 'is displayed. Thereby, it can be easily grasped whether or not the guiding mirror 76 'is located in the vertical plane Z. Further, when the guiding mirror 76 'is not located in the vertical plane Z, the amount and direction of the deviation can be easily grasped.

When the guiding mirror 76 ′ is not located in the vertical plane Z, the display 104 a of the data collector 104
The guide mirror 76 'is moved and installed so as to be located in the vertical plane Z based on the shift amount and the shift direction displayed in (S.18).

Since the surveying instrument 101 is provided with the automatic tracking device 106 for tracking the guiding mirror 76 ', it irradiates a surveying laser beam while automatically tracking the guiding mirror 76' (S.19). Then, the position of the guiding mirror 76 'is measured again. The position measurement data transmitting device 105 transmits the position measurement data of the guiding mirror 76 ′ to the position measurement data receiving device 105 again.

The data collector 104 calculates and determines whether or not the guiding mirror 76 'is located in the vertical plane Z based on the transmitted positioning data of the guiding mirror again. If the guiding mirror 76 'is not located in the vertical plane Z, the moving installation and positioning of the guiding mirror 76' are repeatedly performed as described above until the guiding mirror 76 'is located in the vertical plane Z.

When the guiding mirror 76 ′ is located in the vertical plane Z, the horizontal angle adjusting motor 35 and the vertical angle adjusting motor 51 of the guide laser beam irradiation device 20 are driven, and the center position of the target 23 is determined by the method described above. Let us explore
The direction of the guide laser beam P is set toward the center of the target 23 provided on the pole 81 '(S.20). As described above, the guide laser light is guided by the guiding mirror 76 '.
The irradiation direction of P is guided in the vertical plane Z, and the setting of the guide laser beam irradiation direction is completed.

In the first embodiment of the operation for setting the irradiation direction of the guide laser beam P by the guide laser beam direction setting system, the surveying instrument 101 includes the position survey data transmitting apparatus 105 and the automatic tracking apparatus 106, Since the position survey data receiving device 82 and the data collector 104 are provided on the pole 81 ′ on the side of the use mirror 76 ′,
The worker did not need to go to the place where the surveying instrument 101 was installed and directly operate the apparatus. The operator checked the position information of each reflecting mirror and moved the guiding mirror 76 'while staying at the side of the guiding mirror 76'. Most work such as tracking with a surveying instrument at the time can be performed.

[Modification 1] In the embodiment of the guide laser beam direction setting method of the present invention, the second reflection mirror 76 and the guiding mirror 76 'are separately prepared and used. And the guide mirror may be the same.

First, the guiding mirror 76 ′ attached to the pole 81 ′ is installed so that its reflection position is located vertically above the reference point 83. On the pole 81 ', a target 23 is provided at a position corresponding to the gradient angle of the guide laser beam P based on the construction plan, and a position measurement data receiving device 82 and a data collector 104 are also provided. First
The reflection mirror 75 is installed so that the reflection position is located vertically above the reference point 77 as in the embodiment.

The surveying instrument 101 is operated by radio or the like to measure the position of the first reflecting mirror 75 and the guiding mirror 76 ′ installed vertically above the reference point 83, and the position measuring data is converted to the position measuring data. The data is transmitted to the receiving device 82.
The data collector 104 calculates and determines the vertical plane Z including the reference points 77 and 83 based on the received position measurement data.

After transmitting the position measurement data, there is no problem even if the guiding mirror 76 'is moved, so that the guiding mirror 76' is moved from above the reference point 83 vertically and the groove 74 is moved.
The pole 81 'is set up vertically inside. After that,
An operation for setting the direction of the guide laser beam P is performed based on the same operation as in the embodiment.

In the first modification, since the same one is used for the second reflecting mirror and the guiding mirror, it is not necessary to prepare many reflecting mirrors, and the cost can be reduced.

[Modification 2] In the embodiment of the guide laser beam direction setting method of the present invention, the first reflecting mirror 75, the second reflecting mirror 76, and the guiding mirror 76 'are separately prepared and used. However, the first reflecting mirror, the second reflecting mirror, and the guiding mirror may be the same.

First, the guiding mirror 76 ′ attached to the pole 81 ′ is installed so that its reflection position is located vertically above the reference point 77. On the pole 81 ', a target 23 is provided at a position corresponding to the gradient angle of the guide laser beam P based on the construction plan, and a position measurement data receiving device 82 and a data collector 104 are also provided.

The surveying instrument 101 is operated by radio or the like to measure the position of the guiding mirror 76 ′ installed vertically above the reference point 77, and transmits the position measurement data to the position measurement data receiving device 82. After transmitting the position measurement data, there is no problem even if the guiding mirror 76 'is moved vertically above the reference point 77.

Subsequently, the guiding mirror 76 ′ is installed so that its reflection position is located vertically above the reference point 83, and the surveying instrument 101 is operated by radio or the like to be installed vertically above the reference point 83. The position of the guiding mirror 76 'is measured. The position survey data is transmitted to the position survey data
Send to

The data collector 104 converts the position measurement data of the guiding mirror 76 ′ installed vertically above the reference point 77 and the position measurement data of the guiding mirror 76 ′ installed vertically above the reference point 83. Based on this, a vertical plane Z including the reference point 77 and the reference point 83 is calculated and determined.

After transmitting the position measurement data, there is no problem if the guiding mirror 76 ′ is moved vertically above the reference point 83. Therefore, the guiding mirror 76 ′ is moved from the reference point 83 to The pole 81 'is set up vertically. After that, the direction setting operation of the guide laser beam P is performed based on the same operation as the embodiment.

In the second modification, the first reflecting mirror and the second
Since the same mirror is used for the reflection mirror and the guiding mirror, it is not necessary to prepare many reflection mirrors, and the cost can be further reduced.

[Modification 3] In the embodiment of the guide laser beam direction setting method of the present invention, the second reflecting mirror 76 is
The surveying instrument 101 was installed at a point 102 where the first reflection mirror 75 and the second reflection mirror 76 could be seen, with the reflection position being located vertically above the reference point 83.
As shown in FIG. 2, the surveying instrument 101 may be installed at the reference point 83 with the second reflecting mirror 76 omitted.

The surveying instrument 101 is operated by radio or the like to measure the position of the first reflecting mirror 75, and the position measurement data is transmitted to the position measurement data receiving device 82.

The data collector 104 determines the reference point 7 based on the received position measurement data of the first reflection mirror 75 and the position data of the surveying instrument 101 itself (ie, the origin position).
A vertical plane Z including 7 and the reference point 83 is calculated and determined. After that, the direction setting operation of the guide laser beam P is performed based on the same operation as the embodiment.

In the third modification, since the surveying instrument 101 can be installed at the reference point 83 to perform the work, it is not necessary to use a wide work area. Further, since the second reflection mirror can be omitted, the cost can be reduced.

[0090]

According to the guide laser beam direction setting method of the present invention, it is not necessary to install a theodolite on a manhole having an unstable scaffold, and the stride is selected by selecting a point where the scaffold is stable. be able to. Therefore, the operation of the theodolite becomes easy, and a highly accurate surveying operation can be performed efficiently even by a non-skilled operator, and thus a highly accurate pipe connection can be performed.

[Brief description of the drawings]

FIG. 1 is an external view of a guide laser beam irradiation device used in a guide laser beam direction setting operation system according to the present invention.

2A and 2B show a relationship between the target shown in FIG. 1 and a pulse based on a laser beam reflected by the target, wherein FIG. 2A is a plan view of the target, and FIG. 2B is a diagram showing an example of a pulse obtained by the reflected laser beam. It is.

FIG. 3 is a block diagram of a reflected light detection circuit of the guide laser light irradiation device shown in FIG.

FIG. 4 is a flowchart for explaining scanning of a guide laser beam using the reflected light detection circuit shown in FIG. 3;

FIG. 5 is a side view showing the internal configuration of the guide laser beam irradiation device shown in FIG.

FIG. 6 is a vertical view showing an internal configuration of the guide laser beam irradiation device shown in FIG.

FIG. 7 is a front sectional view showing an internal configuration of the guide laser beam irradiation device shown in FIG.

8 is a block diagram for explaining a drive circuit of the guide laser beam irradiation device shown in FIG.

FIGS. 9A and 9B are explanatory diagrams of a first embodiment of a guide laser beam irradiation direction setting operation by the guide laser beam direction setting system according to the present invention, wherein FIG. 9A is a plan view and FIG. It is.

FIG. 10 is a block diagram illustrating an internal configuration of a surveying instrument used for setting an irradiation direction of a guide laser beam according to the first embodiment of the present invention.

FIG. 11 is a flowchart illustrating an operation procedure of an irradiation direction setting operation of a guide laser beam according to the first embodiment of the present invention.

12A and 12B are explanatory diagrams of Modification Example 3 of the irradiation direction setting operation of the guide laser light by the guide laser light direction setting system according to the present invention, wherein FIG. 12A is a plan view and FIG.
Is a sectional view.

FIG. 13 is a view showing an example of a conventional guide laser beam direction setting operation.

[Explanation of symbols]

 P: guide laser beam Z: vertical plane 20: guide laser irradiation device 23: target 25: retroreflective surface 75: first reflecting mirror 76: second reflecting mirror 76 ': guiding mirror 77: reference point (first known point) 81, 81 '... pole 82 ... position measurement data receiving device 83 ... reference point (second known point) 101 ... surveying instrument 104 ... data collector (calculation means) 104a ... display unit 105 ... position measurement data transmission device 106 ... automatic Tracking device

Claims (6)

[Claims] A guide laser light irradiating device disposed at a first known point and irradiating the guide laser light while tilting up, down, left and right with respect to a horizontal direction; and disposed vertically above the first known point. A first reflecting mirror; a second reflecting mirror disposed vertically above a second known point different from the first known point; irradiating the first reflecting mirror and the second reflecting mirror with laser light; The position of the first reflecting mirror and the position of the second reflecting mirror are received by receiving the reflected laser light from the respective reflecting mirrors.
A surveying instrument for specifying a position of a reflection mirror; and a surveying instrument disposed between the first reflection mirror and the second reflection mirror and irradiating the guide laser light with the first reflection mirror and the second reflection mirror. Irradiating the guide laser light by preparing a guide mirror for guiding in a vertical plane determined by the above, and making the surveying instrument determine whether or not the guide mirror is located in the vertical plane. A direction setting system for a guide laser beam, wherein a direction is located in the vertical plane. 2. The guide laser beam direction setting system according to claim 1, wherein the second reflection mirror and the guide mirror are the same. 3. The guide laser beam direction setting system according to claim 1, wherein the first reflecting mirror, the second reflecting mirror, and the guiding mirror are the same. 4. A position surveying data transmitting device for transmitting position measuring data of each of said reflecting mirrors and an automatic tracking device for tracking said guiding mirror, wherein said position measuring device is located on a side of said guiding mirror. Positioning data receiving device for receiving surveying data, and arithmetic means for calculating whether or not the guiding mirror is located in the vertical plane based on each of the positioning data are provided. The guide laser beam direction setting system according to claim 1. 5. A guide laser light irradiating device which is disposed at a first known point and irradiates a guide laser beam while being inclined in the vertical and horizontal directions with reference to a horizontal direction, and disposed vertically above the first known point. A first reflecting mirror disposed at a second known point different from the first known point, irradiating the first reflecting mirror with laser light, and receiving the reflected laser light from the reflecting mirror, A surveying instrument for specifying the position of a reflection mirror; a vertical direction disposed between the first reflection mirror and the surveying instrument, the irradiation direction of the guide laser light being determined by the first reflection mirror and the surveying instrument. Preparing a guide mirror for guiding in a plane, the irradiation direction of the guide laser light by allowing the surveying instrument to determine whether the guide mirror is located in the vertical plane. A guide laser beam direction setting system, wherein the guide laser beam direction setting system is located in the vertical plane. 6. The guide laser light irradiation device has a light receiving section for receiving reflected light of the guide laser light, and a target for reflecting the guide laser light is provided vertically above the guide mirror. The guide laser light irradiation device scans the target based on the guide laser light, and receives the reflected light of the target at the light receiving unit, so that the center of the target is irradiated with the guide laser light. The guide laser beam direction setting system according to claim 1, wherein the direction is set.