JP4647797B2 - Guide laser beam direction setting system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a guide laser light direction setting system when performing construction work with surveying work and using guide laser light.
[0002]
[Prior art]
Conventionally, installation work of a pipe (fume pipe) shown in FIG. 13 is known as an example of construction work involving surveying work. In FIG. 13, 1 is the ground, 2 and 3 are vertical holes, 4 is a groove communicating the vertical hole 2 and the vertical hole 3, and a pipe 5 is provided in the groove 4.
[0003]
In the vertical hole 2 and the vertical hole 3, a manhole (not shown) is installed after the installation of the pipe 5, and the pipe 5 is used for a liquid or liquid flow path such as water and sewage. The pipe 5 is installed in the groove 4 with a predetermined gradient θ. In addition, the pipe 5 is required to be installed straight. This is because if the pipe 5 is installed meandering left and right and up and down, there is a risk that the liquid material is clogged in the pipe 5 or leaks into the ground. Therefore, a reference line is required for the pipe 5 facility.
[0004]
Recently, a guide laser beam is 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 surveying based on the construction drawing and known points. Based on this survey, the vertical hole 2, the vertical hole 3, and the groove 4 are excavated, and the reference points 7 </ b> A and 7 </ b> B are set in the vertical hole 2 and the vertical hole 3.
[0006]
In the vertical hole 2, the rotation center of the guide laser beam irradiation device 6 is installed on the reference point 7. The rotation center of the guide laser light irradiation device 6 coincides with the light emission point of the laser light. A theodolite 8 is installed via a support base 9 vertically above the rotation center of the guide laser beam irradiation device 6. A pole 11 stands in the vertical plane including the manhole reference point 7A of the vertical hole 2 and the manhole reference point 7B of the vertical hole 3 on the ground behind 7B, that is, on the opposite side of 7A based on the survey. It has been.
[0007]
The operator first collimates the pole 11 by using the theodolite 8 to turn the telescope 8a in the horizontal direction. Then, the telescope 8a is turned in the vertical direction within the vertical plane including the pole 11, and the place where the target 12 is to be placed is collimated based on the construction drawing. Note that the angle in the elevation direction of the telescope 8a is known in advance based on the construction plan.
[0008]
The operator places the target 12 vertically above the reference point 7B of the vertical hole 3 so that the center of the target 12 coincides with the line of sight of the telescope 8a. Since the target 12 has the diffusion plate 12a, the operator can visually recognize the guide laser light that has hit the target 12 from the guide laser light irradiation device 6 side.
[0009]
Next, the operator operates the guide laser light irradiation device 6 to turn the guide laser light in the horizontal direction so that the center of the guide laser light coincides with the center of the target 12.
[0010]
Subsequently, in order to incline the guide laser beam to the gradient angle of the pipe 5, the gradient angle is input to the guide laser beam irradiation device. Then, the guide laser light irradiation device 6 is operated to rotate the guide laser light in the vertical direction. Thereby, the horizontal direction setting work and the vertical direction setting work of the guide laser light are completed, and the reference line L is set by the guide laser light.
[0011]
Thereafter, the pipe 5 is installed via the mount 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]
[Problems to be solved by the invention]
However, in this conventional construction work, in order to set the horizontal direction of the guide laser light, the pole 11 is collimated using the theodolite 8 and the horizontal setting work of the guide laser light must be performed. When a person unaccustomed to the operation of the theodolite 8 performs the work, there is a problem that the survey error becomes large.
[0013]
In particular, in the case of an installation operation in which the pipe 5 is connected between manholes, the theodolite 8 must be installed on the manhole where the scaffold is unstable, and the surveying operation must be performed. In addition, there is a problem that it takes time to set the guide laser beam in the horizontal direction.
[0014]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a guide laser light direction setting system capable of facilitating the horizontal setting operation of the guide laser light.
[0015]
[Means for Solving the Problems]
  In order to solve the above-described problem, a guide laser beam direction setting system according to claim 1 of the present invention provides:
  A guide laser beam irradiation device that is arranged at the first known point and that irradiates the guide laser beam with tilting in the vertical and horizontal directions with respect to the horizontal direction;
  A first reflecting mirror disposed vertically above the first known point;
  A second reflecting mirror disposed vertically above a second known point different from the first known point;
  The position of the first reflecting mirror and the position of the second reflecting mirror are specified by irradiating the first reflecting mirror and the second reflecting mirror with laser light and receiving the reflected laser light from each reflecting mirror. Surveying instrument,
  It is disposed between the first reflection mirror and the second reflection mirror, and guides the irradiation direction of the guide laser light in a vertical plane determined by the first reflection mirror and the second reflection mirror. For guidanceMirror,
A target provided on the vertical of the guide mirror for reflecting the guide laser light,
The guide laser light irradiation device includes a light receiving unit for receiving reflected light of the guide laser light, and scanning the target based on the guide laser light and receiving the reflected light by the light receiving unit. A reflected light detection circuit for detecting that the center of the target is irradiated with laser light,
  The surveying instrument includes a position surveying data transmission device that transmits position surveying data of each reflecting mirror,
A position survey data receiving device for receiving each position survey data on the side of the guide mirror, and a calculation means for calculating whether or not the guide mirror is located in the vertical plane based on each position survey data And
  The position of each mirror specified by the surveying instrument is transmitted as position survey data from the position survey data transmitting apparatus to the position survey data receiving apparatus, and based on the calculation result of the calculation meansThe guide laser light irradiation direction is positioned in the vertical plane by determining whether or not the guiding mirror is positioned in the vertical plane.
  The guide laser light direction setting system according to claim 5,
A guide laser beam irradiation device that is arranged at the first known point and that irradiates the guide laser beam with tilting in the vertical and horizontal directions with respect to the horizontal direction;
A first reflecting mirror disposed vertically above the first known point;
The position of the first reflecting mirror is specified by irradiating the first reflecting mirror with a laser beam and receiving the reflected laser beam from the reflecting mirror, which is disposed at a second known point different from the first known point. Surveying instrument,
A guiding mirror disposed between the first reflecting mirror and the surveying instrument and for guiding an irradiation direction of the guide laser light in a vertical plane determined by the first reflecting mirror and the surveying instrument; ,
A target provided on the vertical of the guide mirror for reflecting the guide laser light,
The guide laser light irradiation device includes a light receiving unit for receiving reflected light of the guide laser light, and scanning the target based on the guide laser light and receiving the reflected light by the light receiving unit. A reflected light detection circuit for detecting that light is applied to the center of the target;
The surveying instrument includes a position surveying data transmission device that transmits position surveying data of each reflecting mirror,
A position survey data receiving device for receiving each position survey data on the side of the guide mirror, and a calculation means for calculating whether or not the guide mirror is located in the vertical plane based on each position survey data And
The position of each mirror specified by the surveying instrument is transmitted as position surveying data from the position surveying data transmitting apparatus to the position surveying data receiving apparatus, and the guiding mirror is located in the vertical plane based on the calculation result of the calculating means. It is characterized in that the irradiation direction of the guide laser beam is positioned in the vertical plane by determining whether or not the laser beam is positioned in the vertical plane.
  The surveying instrument preferably includes an automatic tracking device that tracks the guide mirror.
[0016]
  Claim 1, Claim 5According to the invention described in (2), since it is not necessary to perform surveying work by installing a surveying instrument on an unstable manhole, surveying errors increase even if a person unaccustomed to the operation of the surveying instrument performs the work. The direction of the guide laser beam can be set in a short time.
  Further, since the surveying instrument is provided with a position surveying data transmission device and an automatic tracking device, and a position surveying data receiving device and a calculation means are provided on the guiding mirror side, each reflection is made while being on the guiding mirror side. Operations such as confirmation of mirror position information, tracking by a surveying instrument when the guide mirror is moved, and confirmation of whether the guide mirror is positioned within the vertical plane determined by the first and second reflecting mirrors It can be performed.
[0017]
The guide laser beam direction setting system according to claim 2 is the guide laser beam direction setting system according to claim 1, wherein the second reflection mirror and the guide mirror are the same. .
[0018]
The guide laser light direction setting work system according to claim 3 is the guide laser light direction setting system according to claim 1, 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 claim 3, since the same reflecting mirror is used, it is not necessary to prepare a large number of reflecting mirrors, and the cost can be reduced.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
First, the configuration and target of a guide laser beam irradiation apparatus used in the guide laser beam direction setting operation method of the present invention will be described.
[0026]
[Configuration of Guide Laser Light Irradiation Device and Target Configuration]
FIG. 1 is an external view of a guide laser beam irradiation apparatus 20 according to the present invention. The guide laser light irradiation device 20 emits guide laser light P. The guide laser beam irradiation device 20 is provided with a light receiving window 21 at the front thereof. The light receiving window 21 is used both as an optical remote control light receiving portion and a guide laser light reflecting light receiving portion.
[0027]
Reference numeral 23 denotes 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 that has hit the diffusion surface 24. The pair of retroreflective surfaces 25 are provided at a predetermined interval.
[0028]
The pair of retroreflective surfaces 25 reflects the reflected laser beam of the guide laser beam P that hits it in the original direction. This reflected laser light is received by a photoelectric conversion element described later through the light receiving window 21.
[0029]
The guide laser light irradiation device 20 has a reflected light detection circuit 26 shown in FIG. The reflected light detection circuit unit 26 includes an oscillator 27, an LD drive circuit 28, an LD light emission unit 29, a photoelectric conversion element 30 as a guide laser light reflection / reception unit, a modulation signal detection unit 31, a double pulse determination unit 32, a control unit 33, The motor driving circuit 34 and the horizontal angle adjusting motor 35 are included.
[0030]
The LD drive circuit 28 modulates and drives the LD light emitting unit 29 based on the oscillation signal of the oscillator 27. As a result, the guide laser beam P is irradiated toward the target 23. When the guide laser beam P is reflected by the retroreflective surface 25, the reflected laser beam P ′ is reflected in the original direction and received by the photoelectric conversion element 30.
[0031]
The modulation signal detector 31 plays a role of discriminating between the extraneous light and the reflected laser light P ′, and detects the pulse Q (see FIG. 2B) corresponding to the reflected laser light P ′. The double pulse determination unit 32 determines whether or not the pulse Q output from the modulation signal detection unit 31 is a double pulse.
[0032]
When the double pulse discriminating unit 32 detects the double pulse, the control unit 33 drives the motor drive circuit 34 and drives the horizontal angle adjustment motor 35 in the opposite direction to direct the guide laser beam P toward the center of the target 23.
[0033]
That is, as shown in the flowchart of FIG. 4, the guide laser beam irradiation apparatus 20 is driven to start scanning the target 23 (S.1), the horizontal angle adjustment motor 35 is rotated in a certain direction, and the reflected laser beam P When the rising edge of the pulse Q based on 'is detected (S.2), the double pulse discriminating unit 32 discriminates whether or not the pulse Q is a double pulse (S.3), whereby the interval between the retroreflective surfaces 25 is specified. Then, the control unit 33 calculates the center position of the target 23 (S.5). As a result, the control unit 33 reversely drives the horizontal angle adjustment motor 35 so that the irradiation direction of the guide laser beam P is directed to the center position of the target 23 (S.6).
[0034]
The search for the center position of the target 23 can also be performed using an optical remote control device. The search for the center position of the target by this optical remote control device will be described later.
[0035]
As shown in FIGS. 5 to 7, a laser light oscillation device 40 is provided inside the guide laser light irradiation device 20. The laser beam oscillator 40 is provided on a swing frame 42 that can be tilted about a horizontal axis 41. The swing frame 42 is supported on the main body frame 43 via a vertical shaft 44. The swing frame 42 can be rotated in the horizontal direction about the vertical shaft 44.
[0036]
A tilting frame 45 is provided on the horizontal shaft 41. A tilt mechanism 46 is connected to the tilt frame 45. The tilt mechanism 46 is provided with a tilt sensor (indicated by reference numeral 55 in FIG. 8) that indicates a horizontal state. The tilt mechanism 46 is provided integrally with the support body of the laser beam oscillator 40 and tilted integrally with the laser beam oscillator 40.
[0037]
An encoder 47 that detects the tilt angle of the laser beam 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.
[0038]
A horizontal angle adjusting mechanism 49 is connected to the swing frame 42. The laser beam oscillation device 40 is provided with a vertical angle adjustment mechanism 50 connected thereto. The horizontal angle adjusting mechanism 49 is driven by the horizontal angle adjusting motor 35. As a result, the laser beam oscillator 40 is rotated in the horizontal direction. As a result, the guide laser beam P is scanned in the horizontal direction.
[0039]
The vertical angle adjustment mechanism 50 is driven by a vertical angle adjustment motor 51. As a result, the laser beam oscillator 40 is rotated in the vertical direction. The tilt mechanism 46 is tilted in the vertical direction together with the laser beam oscillator 40 by the vertical angle adjusting mechanism 50. This 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.
[0040]
The motor drive units 53 and 54 are controlled by the control unit 33 together with the motor drive unit 34. A detection signal of the tilt sensor 55 is input to the control unit 33. The control unit 33 is connected to the operation panel 56 for starting and stopping the guide laser beam irradiation device 20 and setting the gradient of the guide laser beam, the display unit 57 for displaying the gradient setting value, and the photoelectric conversion element 30.
[0041]
A bifurcated portion is provided at the lower end portion of the tilting frame 45 as shown in FIG. The bifurcated portion is provided with a vertical beam emitting portion 58. A laser beam emitter 59 is provided at one of the forked portions, and a reflecting mirror 60 is provided at the other of the forked portions. Further, a beam splitter 61 is provided between the laser beam emitter 59 and the reflecting mirror 60. The beam splitter 61 divides the laser beam emitted from the laser beam emitting unit 59 in the vertical direction, the laser beam is reflected vertically upward and vertically downward, and this laser beam is used for centripetalization. In FIG. 6, the symbol LV indicates a laser beam directed vertically upward.
[0042]
The guide laser light irradiation device 20 can irradiate the guide laser light P vertically and horizontally with reference to the horizontal direction. For the detailed configuration of the guide laser beam irradiation device 20, refer to, for example, Japanese Patent Laid-Open No. 9-257477.
[0043]
[Example 1 of guide laser beam irradiation direction setting operation]
Next, Embodiment 1 of the irradiation direction setting operation of the guide laser beam P by the guide laser beam direction setting system according to the present invention will be described with reference to FIG.
[0044]
9 (a) and 9 (b), 70 is a vertical hole dug in the ground 72, 71 is a vertical hole to be dug in the ground 72, and 73 is a manhole. Manhole 73 is schematically shown. Between the vertical hole 70 and the vertical hole 71, the groove | channel 74 for embedding a pipe is dug to the middle. A manhole is installed in the vertical hole 71 after it is dug.
[0045]
In the vertical hole 70, guide laser beam irradiation is performed so that the rotation center of the laser beam oscillation device 40 in the laser beam irradiation device 20 coincides with a reference point 77 (first known point) as the center position of the manhole 73. A device 20 is installed. The position of the reference point 77 is obtained in advance by surveying according to the construction drawing. The guide laser beam irradiation device 20 irradiates the laser beam LV vertically upward.
[0046]
For the setting operation of the irradiation direction of the guide laser beam P, the first reflecting mirror 75, the second reflecting mirror 76, the guiding mirror 76 ', and the surveying instrument 101 are used.
[0047]
The first reflecting mirror 75 is a support base so that a reflection position for reflecting a laser beam for surveying from the surveying instrument 101 to be described later is positioned vertically above the rotation center of the guide laser beam irradiation device 20, that is, on the laser beam LV. 78.
[0048]
The second reflecting mirror 76 is attached and installed on the pole 81 so that the reflecting position is located vertically above the reference point 83 (second known point) as the center position of the vertical hole 71. The position of this reference point 83 is obtained in advance by surveying according to the construction drawing. Further, the position of the second reflecting mirror 76 may be on an extension line connecting the reference point 77 and the reference point 83.
[0049]
The guide mirror 76 ′ is installed in the groove 74 after the positions of the first and second reflection mirrors 75 and 76 are measured by the surveying instrument 101 as will be described later. The guide mirror 76 'is attached to the pole 81'.
[0050]
The pole 81 ′ includes a position survey data receiving device 82 for receiving position survey data transmitted from the surveying instrument 101, and a guidance mirror 76 ′ based on the position survey data and the first reflection mirror 75. A data collector 104 is provided as a calculation means for calculating whether or not the second reflection mirror 76 is positioned within a vertical plane. Further, the pole 81 'is also provided with a target 23 at a position corresponding to the gradient angle of the guide laser beam P based on the construction plan.
[0051]
As the first reflecting mirror 75, the second reflecting mirror 76, and the guiding mirror 76 ', for example, a known reflecting prism such as a corner cube is used.
[0052]
The surveying instrument 101 is installed at a point 102 where the first reflection mirror 75 and the second reflection mirror 76 can be seen as shown in FIGS. 9A and 9B. A block diagram showing a schematic configuration of the surveying instrument 101 is shown in FIG.
[0053]
The surveying instrument 101 includes a control calculation unit 116, a distance measurement unit 151, an angle measurement unit 154, and a focusing unit 122. The control calculation unit 116 includes a storage unit 121, a data input / output unit 123, an operation input unit 126, A display unit 127, a vertical direction drive motor 170, and a horizontal direction drive motor 180 are connected. In the figure, reference numeral 103 denotes a reflection mirror as a measurement object.
[0054]
The distance measuring unit 151 drives and controls the light emitting unit 152 to irradiate the reflection mirror 103 with a laser beam for surveying. The reflected laser beam reflected by the reflecting mirror 103 is received by the light receiving unit 153, and when the received light signal is input to the distance measuring unit 151, the distance to the reflecting mirror 103 is calculated in the distance measuring unit 151. The calculation result is input to the control calculation unit 116, and the control calculation unit 116 displays the calculated distance to the reflection mirror 103 on the display unit 27.
[0055]
The angle measurement unit 154 receives a detection signal from a vertical angle encoder 155 that detects an inclination angle of a collimation telescope unit (not shown) for collimating the reflection mirror 103 as a measurement object, A detection signal from the horizontal angle encoder 156 that detects the rotation angle of the quasi-telescope unit in the horizontal direction is input, and the angle in the collimation direction when the reflecting mirror 103 is collimated by the collimation telescope unit is measured. The measurement result is input to the control calculation unit 116, and the control calculation unit 116 displays the measured angle of the collimation direction of the reflection mirror 103 on the display unit 27.
[0056]
The focusing unit 122 is for performing automatic focusing of the collimating telescope unit.
[0057]
The storage unit 121 stores a work procedure program related to a specific work procedure such as stakeout, and stores work conditions and the like input from the operation input unit 126.
[0058]
In this surveying instrument 101, the irradiation direction of the surveying laser light and the collimation direction of the collimating telescope unit are adjusted in advance so that the distance to the reflection mirror 103 is measured by the surveying laser light. Then, the collimating telescope unit measures the collimating direction of the reflecting mirror 103, whereby the position of the reflecting mirror 103 relative to the surveying instrument 101 can be specified relatively.
[0059]
The surveying instrument 101 includes a position surveying data transmission device 105 and an automatic tracking device 106 that transmit the position surveying data of the reflecting mirror to the position surveying data receiving device 82 (see FIG. 9).
[0060]
Since the surveying instrument 101 includes the automatic tracking device 106, the vertical driving motor 170 and the horizontal driving motor 180 are driven to automatically scan the reflecting mirror 103 as a measurement object in the vertical and horizontal directions. It can be tracked. For the detailed configuration of the surveying instrument 101, refer to, for example, JP-A-5-322570.
[0061]
FIG. 11 shows a flowchart of the procedure for setting the irradiation direction of the guide laser beam P.
[0062]
First, the surveying instrument 101 is operated wirelessly or the like, and the position of the first reflecting mirror 75 is measured (S.11). That is, the surveying laser beam is irradiated toward the first reflection mirror 75, and the distance ΔL1, the direction angle Δφ1, and the elevation angle Δθ1 to the first reflection mirror 75 are measured. Data (ΔL1, Δφ1, Δθ1). The direction angle is an angle between the collimation direction of the reflection mirror and an arbitrary reference direction in the horizontal plane centering on the surveying instrument 101. In the present embodiment, the direction angle is right from the surveying instrument 101 in FIG. With reference to the direction, for example, Δφ1 is as shown in FIG. The elevation angle is an elevation angle with reference to the horizontal plane including the surveying instrument 101. For example, Δθ1 is as shown in FIG.
[0063]
Subsequently, the surveying instrument 101 is operated wirelessly or the like, and the position of the second reflecting mirror 76 is measured (S.12). That is, the laser beam for surveying is irradiated 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 the position survey data (ΔL2, Δφ2, Δθ2) of the second reflecting mirror 76.
[0064]
The position survey data (ΔL1, Δφ1, Δθ1) and (ΔL2, Δφ2, Δθ2) of the first and second reflecting mirrors are received by the position survey data transmitter 105 and the position survey data receiver 82 provided on the pole 81 ′. (S.13).
[0065]
The data collector 104 provided in the pole 81 ′ is connected to the position survey data receiving device 82, and the position survey data (ΔL 1, Δφ 1, Δθ 1) of the first reflection mirror 75 and the position survey data of the second reflection mirror 76. Based on (ΔL2, Δφ2, Δθ2), the vertical plane Z including the first reflection mirror 75 and the second reflection mirror 76 is determined (S.14). Since the first reflecting mirror 75 and the second reflecting mirror 76 are positioned vertically above the reference point 77 and the reference point 83, the vertical plane Z includes the reference point 77 and the reference point 83 in the plane. It is out.
[0066]
Next, the guide mirror 76 ′ is installed with the pole 81 ′ standing vertically in the groove 74. The surveying instrument 101 is operated by radio or the like to perform position surveying of the guiding mirror 76 '(S.15). That is, the laser beam for surveying is irradiated 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. This is the position survey data (ΔL3, Δφ3, Δθ3) of the guide mirror 76 '.
[0067]
The position survey data (ΔL3, Δφ3, Δθ3) of the guide mirror 76 'is also transmitted by the position survey data transmitter 105 to the position survey data receiver 82 provided on the pole 81' (S.16). The data collector 104 connected to the position survey data receiving device 82 determines whether the guide mirror 76 ′ is located in the vertical plane Z based on the position survey data (ΔL3, Δφ3, Δθ3) of the guide mirror 76 ′. It is judged by calculating whether or not (S.17).
[0068]
On the display unit 104a of the data collector 104, a schematic diagram showing the coordinates or positional relationship between the vertical plane Z and the guiding mirror 76 'is displayed. Thereby, it is possible to easily grasp 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 of displacement and the direction of displacement can be easily grasped.
[0069]
When the guide mirror 76 ′ is not positioned in the vertical plane Z, the guide mirror 76 ′ is positioned in the vertical plane Z based on the shift amount and the shift direction displayed on the display unit 104 a of the data collector 104. It is moved and installed (S.18).
[0070]
Since the surveying instrument 101 includes the automatic tracking device 106 that tracks the guiding mirror 76 ', the surveying laser 76 is automatically tracked (S.19), and the surveying laser beam is irradiated to guide again. The position of the mirror 76 'is measured. The position survey data transmitter 105 transmits again the position survey data of the guiding mirror 76 ′ to the position survey data receiver 105.
[0071]
The data collector 104 calculates and determines whether or not the guiding mirror 76 ′ is located in the vertical plane Z based on the position measurement data of the guiding mirror transmitted again. When the guide mirror 76 'is not located in the vertical plane Z, the moving installation and the position measurement of the guide mirror 76' are repeated as described above until the guide mirror 76 'is located in the vertical plane Z.
[0072]
When the guide mirror 76 ′ is positioned in the vertical plane Z, the horizontal angle adjusting motor 35 and the vertical angle adjusting motor 51 of the guide laser light irradiation device 20 are driven to search the center position of the target 23 by the method described above. Then, the direction of the guide laser beam P is set toward the center of the target 23 provided on the pole 81 ′ (S.20). In this way, the guide laser light P irradiation direction is guided in the vertical plane Z by the guiding mirror 76 ', and the setting of the guide laser light irradiation direction is completed.
[0073]
In the first embodiment of the guide laser light irradiation direction setting operation by the guide laser light direction setting system, the surveying instrument 101 includes the position surveying data transmission device 105 and the automatic tracking device 106, and a guidance mirror 76 is provided. Since the position survey data receiving device 82 and the data collector 104 are provided on the 'side pole 81', the operator does not have to bother to go to the place where the surveying instrument 101 is installed and operate it directly. While being on the side of the mirror 76 ', it is possible to perform almost all operations such as confirmation of position information of each reflecting mirror and tracking by a surveying instrument when the guiding mirror 76' is moved.
[0074]
[Modification 1]
In the embodiment of the guide laser beam direction setting operation method of the present invention, the second reflecting mirror 76 and the guiding mirror 76 ′ are separately prepared and used. However, the second reflecting mirror and the guiding mirror are the same. It may be a thing.
[0075]
First, the guide mirror 76 ′ attached to the pole 81 ′ is installed so that the reflection position is located vertically above the reference point 83. The pole 81 ′ is provided with a target 23 at a position corresponding to the gradient angle of the guide laser beam P based on the construction plan, and is also provided with a position survey data receiving device 82 and a data collector 104. The first reflection mirror 75 is installed so that the reflection position is located vertically above the reference point 77 as in the embodiment.
[0076]
The surveying instrument 101 is operated by radio or the like, position measurement is performed between the first reflection mirror 75 and the guide mirror 76 ′ vertically above the reference point 83, and the position measurement data is received by the position survey data receiving device 82. Send to. The data collector 104 calculates and determines the vertical plane Z including the reference point 77 and the reference point 83 based on the received position survey data.
[0077]
After the position measurement data is transmitted, there is no problem even if the guiding mirror 76 ′ is moved. Therefore, the guiding mirror 76 ′ is moved vertically above the reference point 83 to vertically set the pole 81 ′ in the groove 74. Stand upright. Thereafter, the direction setting operation of the guide laser beam P is performed based on the same operation as in the embodiment.
[0078]
In this modification 1, since the same thing is used for the 2nd reflective mirror and the guidance mirror, it is not necessary to prepare many reflective mirrors, and cost can be reduced.
[0079]
[Modification 2]
In the embodiment of the guide laser beam direction setting operation method of the present invention, the first reflection mirror 75, the second reflection mirror 76, and the guide mirror 76 ′ are separately prepared and used. The two reflecting mirrors and the guiding mirror may be the same.
[0080]
First, the guide mirror 76 ′ attached to the pole 81 ′ is installed so that the reflection position is located vertically above the reference point 77. The pole 81 ′ is provided with a target 23 at a position corresponding to the gradient angle of the guide laser beam P based on the construction plan, and is also provided with a position survey data receiving device 82 and a data collector 104.
[0081]
The surveying instrument 101 is operated by radio or the like, and the position survey of the guidance mirror 76 ′ installed vertically above the reference point 77 is performed, and the position survey data is transmitted to the position survey data receiving device 82. After the position survey data is transmitted, there is no problem even if the guiding mirror 76 ′ is moved vertically above the reference point 77.
[0082]
Subsequently, the guidance mirror 76 ′ is installed so that the reflection position is located vertically above the reference point 83, the surveying instrument 101 is operated by radio or the like, and the guidance mirror is installed vertically above the reference point 83. Perform 76 'position survey. The position survey data is transmitted to the position survey data receiving device 82.
[0083]
The data collector 104 is based on the position survey data of the guidance mirror 76 ′ installed vertically above the reference point 77 and the position survey data of the guidance mirror 76 ′ installed vertically above the reference point 83. A vertical plane Z including the reference point 77 and the reference point 83 is calculated and determined.
[0084]
After the position survey data is transmitted, there is no problem even 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 enter the pole 81 in the groove 74. Set 'upright. Thereafter, the direction setting operation of the guide laser beam P is performed based on the same operation as in the embodiment.
[0085]
In this modification 2, since the same thing is used for the 1st reflective mirror, the 2nd reflective mirror, and the guidance mirror, it is not necessary to prepare many reflective mirrors, and cost can be reduced further.
[0086]
[Modification 3]
In the embodiment of the guide laser beam direction setting operation method of the present invention, the second reflection mirror 76 is arranged so that the reflection position is located vertically above the reference point 83, and the surveying instrument 101 is arranged in the first reflection mirror 75. However, as shown in FIG. 12, the second reflection mirror 76 may be omitted and the surveying instrument 101 may be installed at the reference point 83.
[0087]
The surveying instrument 101 is operated by wireless or the like to perform the position survey of the first reflecting mirror 75 and the position survey data is transmitted to the position survey data receiving device 82.
[0088]
The data collector 104 calculates a vertical plane Z including the reference point 77 and the reference point 83 based on the received position survey data of the first reflecting mirror 75 and the position data of the surveying instrument 101 itself (that is, the origin position). To decide. Thereafter, the direction setting operation of the guide laser beam P is performed based on the same operation as in the embodiment.
[0089]
In the third modification, the surveying instrument 101 can be installed at the reference point 83 and work can be performed, so there is no need to use a wide work area. Further, since the second reflecting mirror can be omitted, the cost can be reduced.
[0090]
【The invention's effect】
According to the guide laser beam direction setting method of the present invention, it is not necessary to install a theodolite on an unstable manhole of the scaffolding, and a theodolite can be installed by selecting a stable point of the scaffolding. Therefore, the operation of the theodolite becomes easy, and even a non-skilled worker can efficiently perform a highly accurate surveying work, and thus can perform highly accurate pipe connection.
[Brief description of the drawings]
FIG. 1 is an external view of a guide laser light irradiation apparatus used in a guide laser light direction setting work system of the present invention.
2 shows the relationship between the target shown in FIG. 1 and a pulse based on the reflected laser beam from the target, (a) is a plan view of the target, and (b) is a diagram showing an example of a pulse obtained by the reflected laser beam. It is.
3 is a block diagram of a reflected light detection circuit of the guide laser light irradiation apparatus shown in FIG.
4 is a flowchart for explaining scanning of guide laser light using the reflected light detection circuit shown in FIG. 3;
FIG. 5 is a side view showing an internal configuration of the guide laser beam irradiation apparatus shown in FIG. 1;
6 is a longitudinal view showing an internal configuration of the guide laser beam irradiation apparatus shown in FIG.
7 is a front sectional view showing an internal configuration of the guide laser beam irradiation apparatus shown in FIG. 1;
FIG. 8 is a block diagram for explaining a drive circuit of the guide laser beam irradiation apparatus shown in FIG.
FIGS. 9A and 9B are explanatory views of Embodiment 1 of guide laser light irradiation direction setting work by the guide laser light direction setting system according to the present invention, wherein FIG. 9A is a plan view and FIG. 9B is a cross-sectional view; It is.
FIG. 10 is a block diagram illustrating an internal configuration of a surveying instrument used for setting an irradiation direction of guide laser light according to the first embodiment of the present invention.
FIG. 11 is a flowchart for explaining the work procedure of the guide laser light irradiation direction setting work according to the first embodiment of the present invention.
FIGS. 12A and 12B are explanatory views of a third modification of the guide laser light irradiation direction setting operation by the guide laser light direction setting system according to the present invention, in which FIG. 12A is a plan view and FIG. 12B is a cross-sectional view; It is.
FIG. 13 is a diagram showing an example of a conventional guide laser beam direction setting operation.
[Explanation of symbols]
P ... Guide laser light
Z ... Vertical plane
20 ... Guide laser irradiation device
23 ... Target
25 ... Retroreflective surface
75. First reflection mirror
76 ... Second reflection mirror
76 '... Mirror for guidance
77 ... Reference point (first known point)
81, 81 '... Paul
82. Positioning data receiving device
83 ... Reference point (second known point)
101 ... Surveying instrument
104 ... Data collector (calculation means)
104a ... Display section
105 ... Positioning data transmitter
106 ... Automatic tracking device

Claims (6)

A guide laser beam irradiation device that is arranged at the first known point and that irradiates the guide laser beam with tilting in the vertical and horizontal directions with respect to the horizontal direction;
A first reflecting mirror disposed vertically above the first known point;
A second reflecting mirror disposed vertically above a second known point different from the first known point;
The position of the first reflecting mirror and the position of the second reflecting mirror are specified by irradiating the first reflecting mirror and the second reflecting mirror with laser light and receiving the reflected laser light from each reflecting mirror. Surveying instrument,
It is disposed between the first reflection mirror and the second reflection mirror, and guides the irradiation direction of the guide laser light in a vertical plane determined by the first reflection mirror and the second reflection mirror. A guidance mirror;
A target provided on the vertical of the guide mirror for reflecting the guide laser light,
The guide laser light irradiation device includes a light receiving unit for receiving reflected light of the guide laser light, and scanning the target based on the guide laser light and receiving the reflected light by the light receiving unit. A reflected light detection circuit for detecting that the center of the target is irradiated with laser light,
The surveying instrument includes a position surveying data transmission device that transmits position surveying data of each reflecting mirror,
A position survey data receiving device for receiving each position survey data on the side of the guide mirror, and a calculation means for calculating whether or not the guide mirror is located in the vertical plane based on each position survey data And
The position of each mirror specified by the surveying instrument is transmitted as position survey data from the position survey data transmitting device to the position survey data receiving device, and the guiding mirror is located in the vertical plane based on the calculation result of the calculation means . The guide laser beam direction setting system is characterized in that the irradiation direction of the guide laser beam is positioned in the vertical plane by determining whether or not the laser beam is positioned at the position. The guide laser beam direction setting system according to claim 1, wherein the surveying instrument includes an automatic tracking device that tracks the guiding mirror. Claim 1 or claim 2 direction setting system guides the laser light according to, characterized in that the second reflecting mirror and the guiding mirror are the same. 3. The guide laser light direction setting system according to claim 1, wherein the first reflection mirror, the second reflection mirror, and the guide mirror are the same. A guide laser beam irradiation device that is arranged at the first known point and that irradiates the guide laser beam with tilting in the vertical and horizontal directions with respect to the horizontal direction;
A first reflecting mirror disposed vertically above the first known point;
The position of the first reflecting mirror is specified by irradiating the first reflecting mirror with a laser beam and receiving the reflected laser beam from the reflecting mirror, which is disposed at a second known point different from the first known point. Surveying instrument,
A guiding mirror disposed between the first reflecting mirror and the surveying instrument and for guiding an irradiation direction of the guide laser light in a vertical plane determined by the first reflecting mirror and the surveying instrument; ,
A target provided on the vertical of the guide mirror for reflecting the guide laser light,
The guide laser light irradiation device includes a light receiving unit for receiving reflected light of the guide laser light, and scanning the target based on the guide laser light and receiving the reflected light by the light receiving unit. A reflected light detection circuit for detecting that light is applied to the center of the target;
The surveying instrument includes a position surveying data transmission device that transmits position surveying data of each reflecting mirror,
A position survey data receiving device for receiving each position survey data on the side of the guide mirror, and a calculation means for calculating whether or not the guide mirror is located in the vertical plane based on each position survey data And
The position of each mirror specified by the surveying instrument is transmitted as position survey data from the position survey data transmitting device to the position survey data receiving device, and the guiding mirror is located in the vertical plane based on the calculation result of the calculation means . The guide laser beam direction setting system is characterized in that the irradiation direction of the guide laser beam is positioned in the vertical plane by determining whether or not the laser beam is positioned at the position.   6. The guide laser beam direction setting system according to claim 5, wherein the surveying instrument includes an automatic tracking device that tracks the guiding mirror.

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