JP3666816B1 - Laser marking method and apparatus - Google Patents

Abstract

Regardless of whether the collimation direction of the surveying instrument and the laser projection direction of the laser device are parallel or misaligned, it is possible to always perform highly accurate laser marking and directly to the laser projection point. Enable marking.
First, a collimation target 10 is collimated with the telescope unit 2 to measure a horizontal angle, a vertical angle and a distance, and a laser beam is projected onto the collimation target 10 to obtain a horizontal angle and a vertical angle. If the relative angle data of the laser light projection direction with respect to the collimation direction of the telescope unit is obtained and the marking position is actually collimated by the telescope unit 2, the second procedure for measuring the angle is performed. Ranging data up to the marking position is acquired, and horizontal and prone rotation amounts for projecting laser light from the laser device 4 to the marking position are calculated from the ranging data and the relative angle data. The laser beam is projected to the marking position.
[Selection] Figure 3

Description

  The present invention relates to a method and apparatus for marking a charging point, a work reference point, and the like with a laser in tunnels and other construction works.

  For example, at the time of blast excavation in a mountain tunnel, a laser marking method is employed to mark the blast attachment point (drilling point), excavation shape (periphery), etc. in the face section.

  For example, in Patent Document 1 below, a laser oscillator that projects laser light and a light wave angle measuring finder that measures distance by light waves are integrated so that the optical axis of the laser light and the optical axis of the light wave are parallel. A laser beam projection device; a drive device that supports the laser beam projection device and drives the laser beam projection device in a vertical direction and a horizontal direction; and based on angle measurement data and tunnel shape information from the light wave angle measurement range finder An arithmetic and control unit that operates the driving device to move the laser light projection device in a vertical direction and a horizontal direction, and sets the laser light projection device and the driving device at a position in front of the cross section of the face. Knowing its installation coordinates, collimating another reference point with known coordinates with the light wave angle ranging finder, obtaining angle measurement distance data from the installation coordinates by this collimation, Previous Based on the planned tunnel alignment and the planned tunnel cross-sectional shape given to the arithmetic and control unit, a work reference point on the face section is set, and the arithmetic processing unit sets the work reference point based on the angle measurement data. Calculate the vertical angle and horizontal angle from the installation coordinates toward, and operate the drive device at the vertical angle and horizontal angle to shake the laser light projector, project the laser light to the work reference point, A tunnel cross-section marking method in which work reference points are sequentially marked on the face cross-section by laser beam irradiation is disclosed.

  In Patent Document 2 below, a surveying instrument provided with a laser device so that the laser beam is parallel or coaxial with the optical axis for distance measurement and angle measurement is installed at an arbitrary position in the tunnel, and the position is surveyed in advance. The surveying instrument measures the distance and angle of the first two points to determine the installation position of the surveying instrument, and then uses the surveying instrument to determine a point on the tunnel face, the face and the surveying surface. Ranging and measuring the second two points with the machine to determine the position of each point, and the design / planning tunnel in the face plane obtained from the design / planning tunnel alignment and tunnel cross-sectional shape From the position of the center point and the blasting point, the horizontal rotation angle and the vertical rotation angle of the tunnel center point and the blasting point with respect to one of the first two points are obtained, and the laser device is obtained at the horizontal rotation angle and the vertical rotation angle. Shake the laser beam to the tunnel center and blast point. Then, mark the tunnel center point and blast point, move the surveying instrument, and when the first two points cannot be collimated from the position, use the second two points as the first two points. A tunnel three-dimensional surveying method is disclosed.

In these laser marking methods, the light wave angle measurement is performed so that the collimation direction of the light wave angle measuring range (surveying instrument) is parallel to the laser light projection direction of the laser light projection device (laser device). A surveying instrument (hereinafter referred to as a laser marking device) in which a distance measuring instrument (surveying instrument) and the laser light projection device (laser device) are integrally assembled is used.
Japanese Patent Publication No. 7-103770 Japanese Patent No. 2955784

  As described above, in the case of the laser marking method, laser marking is performed on the assumption that the collimation direction of the surveying instrument and the laser projection direction of the laser device are parallel.

However, in the case of marking in a tunnel, the laser marking device is always exposed to severe conditions such as blasting vibration and heavy machinery vibration, causing problems as described below.
(1) Due to the effects of intense blast vibration and heavy machinery vibration, the fixing screw of the laser device may be loosened, resulting in an error in the laser beam irradiation angle. As a result, the excavation was performed at the wrong position, and the fact was not found until the later management survey, and the excavation was forced to be performed again. Naturally, it was necessary to fill the extra excavated portion by placing concrete, and it took a lot of time and money, and it took extra time and suffered great damage.

One of the causes of the above-mentioned survey error is the fixed concept of survey workers. In other words, the laser marking device itself is an expensive precision product, and it is assumed that the collimation direction of the surveying instrument and the laser beam of the laser apparatus are always parallel. In many cases, it is neglected to check whether there is any deviation in the laser beam, which is one of the causes of survey errors.
(2) As a countermeasure, it is also possible to install a check target for checking the deviation and check daily whether there is any deviation in the laser projection direction. However, in the case of tunnels, the wall surface of the tunnel to which the check target and laser marking device are fixed is always displaced due to stress release by tunnel excavation, so whether the check target is moving or the source laser device It was not possible to determine whether the direction of was shifted.
(3) When the collimation direction of the surveying instrument and the laser beam of the laser device are slightly deviated from the parallel angle (if an error occurs), it will be a large irradiation error at a long irradiation distance, so it must be adjusted immediately. There is. However, since adjustment of this laser device requires skilled skills, it is often impossible for engineers on site to respond, and it is necessary to return to the manufacturer for inspection and readjustment, and alternative equipment arrives. Until then, the tunnel construction was interrupted, and there was a case where a huge loss occurred.

  On the other hand, in Patent Documents 1 and 2, the collimation direction of the surveying instrument and the laser projection direction of the laser device are parallel, and the marking position is irradiated with laser light. There is an offset of several tens of mm in the vertical direction from the projection point. For this reason, when laser marking is performed on the tunnel cross section, the amount of shift downward is measured with a measure by an offset amount from the laser projection point, and marking is performed with paint, etc. It took extra time.

  On the other hand, in the marking on the tunnel cross section, the tunnel cross section is marked in order to drill the blast mounting hole in each excavation cycle. However, in the marking on the tunnel cross section, the surveying instrument is frequently used only in a specific narrow angle range. The device portion that supports the telescope unit is repeatedly reciprocated in the horizontal direction. Therefore, in the slip ring part that supports the device part that supports the telescope part so that it can rotate horizontally, contact with the rotation angle reading sensor is performed only within a certain narrow angle range, and wear and deterioration As a result of partial acceleration, the component replacement cycle becomes shorter than usual, and contact failure or electrical short-circuiting may cause equipment freeze, response failure, signal transmission error, and the like.

  Accordingly, the first problem of the present invention is that it is possible to always perform highly accurate laser marking regardless of whether the collimation direction of the surveying instrument and the laser projection direction of the laser device are parallel or misaligned. Another object is to provide a laser marking method and apparatus capable of directly marking a laser projection point.

  Secondly, by dispersing or expanding the sliding range of the slip ring that supports the device portion that supports the telescope so that it can rotate horizontally, the life of the parts can be extended, and the freeze of the equipment, poor response, The purpose is to eliminate as much as possible obstacles such as signal transmission errors.

In order to solve the above-mentioned problem, the present invention according to claim 1 includes a telescope unit for collimating for distance measurement and angle measurement, and rotationally drives a device part that supports the telescope unit in the horizontal direction. , A surveying instrument provided with a drive unit that swings and drives the telescope unit in the prone direction, a laser light projection device attached to the telescope unit of the surveying instrument, various calculations, and a ranging angle from the surveying instrument Data, a laser marking method using a laser marking device composed of an arithmetic control device that controls the drive unit based on marking position data,
A collimation target provided at a predetermined position is collimated by the telescope unit, and a collimation procedure of the telescope unit for measuring a horizontal angle, a vertical angle and a distance at that time, and a laser beam is projected onto the collimation target. The laser beam collimation procedure for measuring the horizontal angle and the vertical angle is determined. From the survey results obtained from these two collimation procedures, the relative angle data of the laser beam projection direction with respect to the collimation direction of the telescope unit is obtained. Asking
Strikes the laser marking, the distance data up to the marking position acquired from said relative angle data, a horizontal rotational amount and Fukuossha rotating amount for projection of laser light from the laser light projection device to the marking location A laser marking method is provided, wherein the driving unit is driven so as to project a laser beam onto a marking position based on the calculated result.

In the first aspect of the present invention, a marking method is employed in which the presence or absence of a deviation between the collimation direction of the surveying instrument and the laser projection direction of the laser light projection apparatus is not problematic.

  That is, in the present invention, prior to laser marking, the collimation target provided at a predetermined position is collimated by the telescope unit, and at that time, the collimation procedure of the telescope unit for measuring the horizontal angle, vertical angle, and distance, The laser beam is projected onto the collimation target and the horizontal angle and the vertical angle at that time are measured. From the survey data obtained from these two collimation procedures, the telescope unit is viewed. The relative angle data of the laser light projection direction with respect to the quasi-direction is obtained.

Then, if the distance data up to the marking position is acquired from the stage where the marking has been completed at the stage where the marking position was collimated with the telescope unit, the distance data up to the marking position and the relative angle and a data projecting laser light to calculate the horizontal rotation amount and Fukuossha direction rotation amount, by driving the driving unit marking position for projection of the laser beam to the marking positions from the laser light projection device Let's make it.

As described above, in the present invention, the marking method absorbs the amount of deviation regardless of whether or not the collimation direction of the surveying instrument and the laser projection direction of the laser light projection device are misaligned, and the misalignment between the two is regarded as a problem. Since the marking method is not performed, it is possible to always perform highly accurate laser marking.

  At the same time, it is a marking method that corrects the misalignment between the collimation point of the telescope unit and the laser beam projection point, and projects the laser beam directly to the laser projection point. Therefore, it is sufficient to perform marking directly on the laser light projection point with paint or the like, so that significant labor saving is possible.

According to a second aspect of the present invention, the acquisition of distance data to the marking position is performed by measurement using a distance measuring function of the surveying instrument when the collimation target is collimated with the telescope unit. A laser marking method is provided. The distance data to the marking position can be acquired by measurement using the ranging function of the surveying instrument when the collimating target is collimated with the telescope unit.

According to a third aspect of the present invention, in the acquisition of the distance data to the marking position, when the distance data is known or can be estimated in advance , the distance data is input to the arithmetic control device. A laser marking method according to claim 1 is provided. If the distance data to the marking position is acquired by distance measurement as in the invention described in claim 2, the accuracy is improved. However, if the distance data is known in advance or can be assumed with a certain degree of accuracy, this value is used. it is also possible to obtain by inputting to the arithmetic and control unit. For example, in actual tunnel construction, if it is known or can be estimated from the distance from the excavation data, or if it can be estimated from the location of the steel support, use the distance data calculated or estimated from these It has also been done.

According to a fourth aspect of the present invention, in the laser marking device, the initial setting of the collimation direction of the telescope unit and the laser light projection direction of the laser light projection device is made parallel to both. A laser marking method as described above is provided.

The present invention of the fourth aspect, it is an parallel initial setting of the laser light projection direction of the quasi-direction and the laser beam projecting device viewing of the telescope unit. In the case of laser marking apparatus purchased from the manufacturer as an initial setting, since the laser light projection direction of the quasi-direction and the laser beam projecting device seen in the telescope unit are parallel, it is in the form of To accept this .

As a result of the subsequent use, there is a deviation between the collimation direction of the telescope unit and the laser light projection direction of the laser light projection device, and this laser marking method is a system that completely absorbs the deviation amount. Therefore, it can be used continuously without any problems.

As the present invention according to claim 5, in the laser marking device, the initial setting of the collimation direction of the telescope unit and the laser light projection direction of the laser light projection device has a relative angle therebetween. Item 4. A laser marking method according to any one of Items 1 to 3.

In the present invention according to claim 5, the initial setting of the collimation direction of the telescope unit and the laser light projection direction of the laser light projection device is set to a relative angle (vertical direction relative angle, horizontal direction relative) from the beginning. Angle). In other words, by making a relative angle between the two, in the slip ring part that supports the device part that supports the telescope part so that it can be horizontally rotated, the contact sliding range (hereinafter referred to as the rotation angle reading sensor) , Sensor sliding surfaces) can be distributed or expanded, so that the life of parts can be extended, and obstructions such as equipment freeze, response failure, and signal transmission error are eliminated as much as possible. Is possible.

  The relative angle may be arbitrary. As an extreme example, for example, the angle difference of 120 to 180 degrees in a plane can be provided, and the slip ring surface on the opposite side that is not used at the time of telescope collimation can be set as the sensor sliding surface at the time of laser light projection It is. In addition, by periodically changing the relative angle, it is possible to prevent local wear and deterioration from progressing.

  As the present invention according to claim 6, the surveying instrument is installed at an arbitrary point, at least two reference points whose coordinates are known in advance are collimated, and distance measurement / angle measurement data collimating these reference points The laser marking method according to any one of claims 1 to 5, wherein the installation point coordinates of the surveying instrument are obtained by a backward intersection method.

  In the present invention described in claim 6, the surveying instrument is installed at an arbitrary point, and at least two reference points whose coordinates are known in advance are collimated, and distance measurement / angle measurement data collimating these reference points The installation point coordinates of the surveying instrument are obtained by the backward intersection method. As described in the above-mentioned Patent Document 1, when surveying with another surveying instrument other than the installation coordinates of the surveying instrument, another surveying instrument is required to survey the installation coordinates every time the surveying instrument is replaced or moved. At the same time, a plurality of workers are required for measuring the equipment coordinates (equipment installation to reference point collimation), and the installation takes time.

  In the present invention, regarding the installation coordinates of a surveying instrument that basically performs distance measurement and angle measurement, this is not regarded as a fixed point, but the installation coordinates are specified from two reference points for each surveying. Therefore, if the surveying position is a position where two reference points can be collimated, the surveying instrument can be installed at an arbitrary point that is not restricted by the underground work, and the degree of freedom is greatly improved. In addition, since it is not necessary to know the installation coordinates in advance for the repositioning and moving work of the surveying instrument, the work can be completed quickly with a small number of people.

  The present invention according to claim 7 provides the laser marking method according to any one of claims 1 to 6, wherein the object of laser marking is marking at the time of tunnel construction.

According to the seventh aspect of the present invention, the laser marking to which the present invention is applied is a marking at the time of tunnel construction, for example, a marking of a drilling position on a cross section of a tunnel face or a marking of an excavation shape (outer periphery). The present invention is a marking method that absorbs the amount of misalignment regardless of whether there is a misalignment between the collimation direction of the surveying instrument and the laser projection direction of the laser light projection device, and does not cause the misalignment between the two as a problem. The marking device is suitable for marking such as tunnel construction in which the marking device is always exposed to severe conditions such as blasting vibration and heavy machinery vibration.

According to an eighth aspect of the present invention, a telescope unit for collimating for distance measurement and angle measurement is provided, and a device part that supports the telescope unit is rotated in the horizontal direction, and the telescope unit is Based on a surveying instrument having a drive unit that swings in a direction, a laser light projection device attached to the telescope unit of the surveying instrument, various calculations, ranging data from the surveying instrument, and marking position data A laser marking method using a laser marking device having no offset amount between the telescope unit and the laser light projection device at the time of initial setting.
A collimation target provided at a predetermined position is collimated by the telescope unit, and a collimation procedure of the telescope unit for measuring a horizontal angle and a vertical angle at that time, and a laser beam is projected to the collimation target and the horizontal The laser beam collimation procedure for measuring the angle and the vertical angle is performed, and the relative angle data of the laser beam projection direction with respect to the collimation direction of the telescope unit is obtained from the survey results obtained from these two collimation procedures. Every
In laser marking, a laser marking method is provided in which the driving unit is driven so as to project a laser beam to a marking position based on the relative angle data.

  The invention according to claim 8 is a case of a laser marking method using a laser marking device in which there is no offset amount in the telescope unit and the laser light projection device particularly at the time of initial setting. When there is no offset amount, it is not necessary to measure the distance during the collimation procedure of the telescope unit in laser marking, and it is not necessary to acquire distance data to the marking position at the time of marking. Based on the relative angle data, the laser beam may be projected to the marking position by changing the angle accordingly.

According to a ninth aspect of the present invention, a telescope unit for collimating for distance measurement and angle measurement is provided, and a device part that supports the telescope unit is rotated in the horizontal direction, and the telescope unit is Based on a surveying instrument having a drive unit that swings in a direction, a laser light projection device attached to the telescope unit of the surveying instrument, various calculations, ranging data from the surveying instrument, and marking position data A laser marking device comprising an arithmetic and control unit for controlling the drive unit,
The arithmetic and control unit collimates a collimation target provided at a predetermined position with the telescope unit, and at that time, collimation procedure of the telescope unit that measures a horizontal angle, a vertical angle, and a distance, and a laser on the collimation target Relative angle data of the laser beam projection direction with respect to the collimation direction of the telescope unit is obtained from the survey result obtained by projecting light and measuring the laser beam collimation procedure for measuring the horizontal angle and vertical angle at that time. strikes the laser marking, the distance data up to the marking position acquired from said relative angle data, horizontal rotation amount and Fukuossha rotating amount for projection of laser light to the marking positions from the laser light projection device The laser marking device is characterized in that the drive unit is driven so as to project a laser beam to a marking position based on the result of calculating There is provided.

According to a tenth aspect of the present invention, a telescope unit for collimation for ranging and angle measurement is provided, and a device part that supports the telescope unit is driven to rotate in the horizontal direction, and the telescope unit is Based on a surveying instrument having a drive unit that swings in a direction, a laser light projection device attached to the telescope unit of the surveying instrument, various calculations, ranging data from the surveying instrument, and marking position data A laser marking device having no offset amount between the telescope unit and the laser light projection device at the time of initial setting.
The arithmetic and control unit collimates a collimation target provided at a predetermined position with the telescope unit, and at that time, collimation procedure of the telescope unit that measures a horizontal angle and a vertical angle, and laser light is applied to the collimation target Relative angle data of the laser light projection direction with respect to the collimation direction of the telescope unit is obtained from the survey result obtained by projecting and measuring the laser beam collimation procedure for measuring the horizontal angle and vertical angle at that time, In the marking, a laser marking device is provided, wherein the driving unit is driven so as to project a laser beam to a marking position based on the relative angle data.

As described above, according to the present invention, it is possible to always perform highly accurate laser marking regardless of whether the collimation direction of the surveying instrument and the laser projection direction of the laser light projection apparatus are parallel or misaligned. In addition, the laser projection point can be directly marked.

  In addition, the life of parts can be extended by dispersing or expanding the sliding range of the slip ring that supports the device part that supports the telescope so that it can rotate horizontally. Failures such as errors can be eliminated as much as possible.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the laser marking method for the tunnel cross section is such that a laser marking device 1 is installed at a position in front of the tunnel face S, and the point of the tunnel face S is charged (a drilling point). Marking is performed. In the illustrated example, the tripod is installed on the roadbed. However, the tripod may be hung from the top so as not to obstruct traveling and work of various heavy machinery.

  The laser marking device 1 includes a telescope unit 2 that performs collimation for distance measurement and angle measurement. The laser marking device 1 rotates the device part that supports the telescope unit 2 in the horizontal direction, and the telescope unit 2 is lowered. A surveying instrument 3 (total station) provided with a drive unit that swings and drives in the upward direction, a laser beam projection device 4 attached to the telescope unit 2 of the surveying instrument 3, various calculations, and distance measurement from the surveying instrument 3 It consists of a calculation control device 5 (computer) that controls the drive unit based on corner data and marking position data. In the illustrated example, a wireless device 6 is attached to the calculation control device 5 and a handy terminal carried by an operator. 7 can be wirelessly communicated, and the handy terminal 7 operates the surveying instrument 3 (start / end of laser marking, self-coordinates based on the backward intersection method). Acquisition, measurement of the relative angle of the laser light projection direction with respect to the collimation direction of the telescope unit 2, rotation of the device part supporting the telescope unit 2 in the horizontal direction and fine adjustment thereof, and swinging of the telescope unit 2 in the prone direction It is possible to remotely control drive and fine adjustment thereof.

Here, the laser marking device 1 does not require that the collimation axis of the telescope unit 2 and the projection axis of the laser beam be parallel. Therefore, when purchased as a surveying instrument with a laser beam projection device from the manufacturer side, the collimation axis of the telescope unit 2 and the projection axis of the laser beam are normally adjusted in parallel, so this is used as it is. It is possible to make the collimation axis of the telescope unit 2 different from the projection axis of the laser beam, especially in order to enjoy the benefits of differentiating the collimation axis of the telescope unit 2 and the projection axis of the laser beam. It is possible to use the ones ordered from the manufacturer with different specifications. These surveying instruments 3 have no obstacles even if the fixing screw of the laser light projection device 4 is loosened due to the influence of intense blasting vibration or heavy equipment vibration and an error occurs in the laser light irradiation angle. It can be used continuously as it is.

  On the other hand, at least two reference points whose coordinates are known in advance, two reference points 8 and 9 in the illustrated example, are installed in the tunnel mine, and the telescope unit 2 is preferably located at a position facing the surveying instrument 3. A collimation target 10 for measuring the relative angle of the laser light projection direction with respect to the collimation direction is set.

  Hereinafter, the drilling position marking on the tunnel face S using the laser marking device 1 will be described in detail according to the procedure.

[Obtaining the self-coordinates of surveying instrument 3]
In this surveying method, a surveying method that basically does not consider the position of the surveying instrument 3 as a fixed point is adopted. That is, as described above, at least two reference points 8 and 9 whose coordinates are known in advance are installed in the tunnel mine, and the two reference points 8 and 9 are placed at arbitrary positions where the collimation is possible. The surveying instrument 3 is installed, and distance measurement / angle measurement data obtained by collimating the two reference points 8 and 9 by the surveying instrument 3 is transmitted to the arithmetic and control unit 5, and the surveying instrument is measured by a backward intersection method. 3 installation coordinates (three-dimensional coordinates) are obtained. The work for specifying the installation coordinates of the surveying instrument 3 is basically always performed before various surveys are performed, and is also performed at appropriate time intervals for checking whether the installation coordinates are misaligned. It is like that.

[Measurement of relative angle data of laser beam projection direction with respect to collimation direction of telescope unit 2]
As shown in FIG. 2A, the collimating target 10 is collimated by the telescope unit 2, the horizontal angle, the vertical angle, and the distance at that time are measured and stored in the arithmetic and control unit 5. 2B, and then, as shown in FIG. 2B, a laser beam is projected onto the collimation target 10, the horizontal angle and the vertical angle are measured, and the laser stored in the arithmetic control device 5 is stored. And the relative angle data (vertical angle α, horizontal angle β) of the laser light projection direction with respect to the collimation direction of the telescope unit 2 from the survey results obtained from these two collimation procedures. Ask. The relative angle data is stored in the arithmetic and control unit 5 and is used to project the laser beam directly and with high accuracy to the marking position at the next laser marking. Either the collimation procedure of the telescope unit 2 or the laser beam collimation procedure may be performed first.

  As the collimation target 10, for example, a reflector or a prism can be suitably used, and it is desirable to use a target whose collimation point is specified at one point by a cross display or the like.

  In the measurement of the relative angle, if the installation coordinates of the collimation target 10 are input to the arithmetic control device 5 in advance, if the start button of “Measurement of relative angle” of the handy terminal 7 is pressed, the telescope It is possible to automatically aim the collimation line of the unit 2 to the collimation target 10. Further, the fine adjustment of the collimation point of the telescope unit 2 can be manually performed by the handy terminal 7.

[Laser marking on face S]
When the above preparatory work is completed, the drilling position marking is performed on the tunnel face S every excavation cycle.

  First, the marking operation is performed by selecting the “rear cross” button on the arithmetic control unit 5 or the handy terminal 7 so that the telescope unit 2 of the surveying instrument 3 collimates the two reference points 8 and 9 so that the self-coordinate O Determine (installation coordinates of surveying instrument 3).

  Next, if the tunnel linear distance TD of the face S is known by measuring the distance L from the surveying instrument 3 to the tunnel face S, or by other surveying, the tunnel linear distance TD is input, and the tunnel face The position of S is specified. The distance to the tunnel face S may be measured by installing a prism at an arbitrary point on the face S. If possible, distance measurement may be performed using a non-prism.

  On the other hand, data such as the planned tunnel linear information and the planned tunnel cross-sectional shape are input to the arithmetic control device 5 in advance, and the position data of the face S is acquired, thereby marking position data (shown in FIG. 5). Each coordinate of the marking position from i = 1 to n is calculated.

  Thus, the surveying instrument 3 calculates (horizontal angle, vertical angle) toward the marking position (i = 1) based on the state where one of the reference points 8 and 9 is collimated, By rotating and driving the device portion supporting the telescope unit 2 in the horizontal direction by the horizontal angle at that (horizontal angle, vertical angle), and swinging the telescope unit 2 in the prone direction by the vertical angle The marking position (i = 1) is collimated by the telescope unit 2 as shown in FIG.

  At this stage, the collimation point (marking position (i = 1)) of the telescope unit 2 does not coincide with the projection point A of the laser beam. Therefore, based on the relative angle data, the marking position is corrected in order to project the laser beam to the marking position (i = 1).

In the marking position correction, the distance L to the marking position (i = 1) is measured by the distance measuring function of the surveying instrument 3 when the marking position (i = 1) is collimated by the telescope unit 2. Since the relative angle data (vertical angle α, horizontal angle β) in the laser beam projection direction with respect to the collimation direction of the telescope unit 2 is known, laser projection is performed from the distance measurement data L up to the marking position (i = 1). horizontal correction amount Δx in terms, Motomari is vertical correction amount [Delta] y, and horizontal rotation amount [Delta] [theta] ₁ for projection therefrom a laser beam to the marking _location, Fukuossha direction rotation amount [Delta] [gamma] ₁ is calculated. FIG. 4 shows how to calculate the prone direction rotation amount Δγ ₁ . If the distance from the surveying instrument 3 to the face S is H, the vertical correction amount Δy = Ltanα + h (h is the offset amount between the telescope unit 2 and the laser light projection device 4). Accordingly, the prone direction rotation amount Δγ ₁ in the telescope unit 2 is obtained from the vertical direction correction amount Δy.

After Δγ, as shown in FIG. 3 (B), by a command from the arithmetic and control unit 5, is rotated by [Delta] [theta] ₁ of the device part supporting the telescope unit in a horizontal direction, the telescope unit 2 in Fukuossha direction by driving to rotate by _one, so that accurate laser beam to the marking location (i = 1) is projected.

For the subsequent marking positions (i = 2 to n), the horizontal direction is determined by the relative positional relationship with the marking position (i = 1) as the reference point without collimating one of the reference points 8 and 9. The rotation amount Δθ _{(i = 2 to n)} and the prone direction rotation amount _{Δγ (i = 2 to n)} are calculated, and marking is performed in order.

[Other examples]
(1) In the above embodiment, when laser marking is performed, the distance data to the marking position is acquired by measurement when the marking position is collimated with the telescope unit. If known, the distance is input. Alternatively, if the estimation is possible, the estimated distance may be input. For example, in tunnel construction, if it is possible to estimate from the distance from the excavation data, or if it can be estimated from the arrangement position of the steel support, the distance data calculated or estimated from these should be input. May be.
(2) In the above embodiment, since the offset amount is generated in the telescope unit 2 and the laser light projection device 4, the distance to the collimation target is measured during the collimation procedure of the telescope unit, and the marking is performed in the laser marking. The distance data to the position is acquired, but when there is no offset amount between the telescope unit 2 and the laser light projection device 4, it is necessary to measure the distance to the collimation target during the collimation procedure of the telescope unit. In addition, it is not necessary to acquire distance data to the marking position for laser marking.
(3) In the above embodiment, the case where the present invention is applied to the drilling position marking on the face S of the tunnel has been described. However, the present invention can be applied to various markings other than the drilling position marking. Is possible.
(4) In the above embodiment, the laser light projection device 4 is mounted on the upper part of the telescope unit 2, but it may be a side part or a lower part as long as it can move together with the telescope part 2 at the mounting position.

FIG. 3 is a layout diagram of devices for laser marking on a tunnel face S. It is a figure which shows the measuring point of the relative angle of the laser beam projection direction with respect to the collimation direction of the telescope part. It is a figure which shows the laser marking point to the tunnel face S. It is a figure which shows the calculation point of the prone direction rotation amount (DELTA) (gamma) ₁ for projecting a laser beam to the said marking position. It is a figure which shows the marking position to the tunnel face S. FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Laser marking apparatus, 2 ... Telescope part, 3 ... Surveying instrument, 4 ... Laser beam projection apparatus, 5 ... Operation control apparatus, 6 ... Radio equipment, 7 ... Handy terminal, 8 * 9 ... Reference point, 10 ... Collimation target

Claims (10)

A telescope unit that performs collimation for distance measurement and angle measurement; and a drive unit that drives the device part that supports the telescope unit to rotate in the horizontal direction and swings the telescope unit in the prone direction. Arrangement control for controlling the driving unit based on the provided surveying instrument, the laser light projection device attached to the telescope unit of the surveying instrument, various calculations, and ranging angle data and marking position data from the surveying instrument A laser marking method using a laser marking device comprising:
A collimation target provided at a predetermined position is collimated by the telescope unit, and a collimation procedure of the telescope unit for measuring a horizontal angle, a vertical angle and a distance at that time, and a laser beam is projected onto the collimation target. The laser beam collimation procedure for measuring the horizontal angle and the vertical angle is determined. From the survey results obtained from these two collimation procedures, the relative angle data of the laser beam projection direction with respect to the collimation direction of the telescope unit is obtained. Asking
Strikes the laser marking, the distance data up to the marking position acquired from said relative angle data, a horizontal rotational amount and Fukuossha rotating amount for projection of laser light from the laser light projection device to the marking location A laser marking method, wherein the drive unit is driven so as to project a laser beam onto a marking position based on the calculated result. 2. The laser marking method according to claim 1 , wherein the distance data to the marking position is acquired by measurement using a ranging function of the surveying instrument when a collimating target is collimated by the telescope unit. 2. The laser marking method according to claim 1 , wherein the distance data to the marking position is acquired by inputting the distance data to the arithmetic and control unit when the distance data is known or can be estimated in advance . The laser marking method according to any one of claims 1 to 3, wherein in the laser marking device, the initial setting of the collimation direction of the telescope unit and the laser light projection direction of the laser light projection device are parallel to each other. The said laser marking apparatus WHEREIN: The initial setting of the collimation direction of the said telescope part and the laser beam projection direction of the said laser beam projection apparatus has given the relative angle between both. Laser marking method.   The surveying instrument is installed at an arbitrary point, and at least two reference points whose coordinates are known in advance are collimated, and the surveying instrument is determined by a backward intersection method from distance measurement / angle measurement data collimating these reference points. The laser marking method according to claim 1, wherein the installation point coordinates are determined.   The laser marking method according to any one of claims 1 to 6, wherein an object of laser marking is marking at the time of tunnel construction. A telescope unit that performs collimation for distance measurement and angle measurement; and a drive unit that drives the device part that supports the telescope unit to rotate in the horizontal direction and swings the telescope unit in the prone direction. Arrangement control for controlling the driving unit based on the provided surveying instrument, the laser light projection device attached to the telescope unit of the surveying instrument, various calculations, and ranging angle data and marking position data from the surveying instrument A laser marking method using a laser marking device having no offset amount in the telescope unit and the laser light projection device at the time of initial setting,
A collimation target provided at a predetermined position is collimated by the telescope unit, and a collimation procedure of the telescope unit for measuring a horizontal angle and a vertical angle at that time, and a laser beam is projected to the collimation target and the horizontal The laser beam collimation procedure for measuring the angle and the vertical angle is performed, and the relative angle data of the laser beam projection direction with respect to the collimation direction of the telescope unit is obtained from the survey results obtained from these two collimation procedures. Every
In laser marking, the driving unit is driven so as to project a laser beam to a marking position based on the relative angle data. A telescope unit that performs collimation for distance measurement and angle measurement; and a drive unit that drives the device part that supports the telescope unit to rotate in the horizontal direction and swings the telescope unit in the prone direction. Arrangement control for controlling the driving unit based on the provided surveying instrument, the laser light projection device attached to the telescope unit of the surveying instrument, various calculations, and ranging angle data and marking position data from the surveying instrument A laser marking device comprising:
The arithmetic and control unit collimates a collimation target provided at a predetermined position with the telescope unit, and at that time, collimation procedure of the telescope unit that measures a horizontal angle, a vertical angle, and a distance, and a laser on the collimation target Relative angle data of the laser beam projection direction with respect to the collimation direction of the telescope unit is obtained from the survey result obtained by projecting light and measuring the laser beam collimation procedure for measuring the horizontal angle and vertical angle at that time. strikes the laser marking, the distance data up to the marking position acquired from said relative angle data, horizontal rotation amount and Fukuossha rotating amount for projection of laser light to the marking positions from the laser light projection device The laser marking device is characterized in that the drive unit is driven so as to project a laser beam to a marking position based on the result of calculating . A telescope unit that performs collimation for distance measurement and angle measurement; and a drive unit that drives the device part that supports the telescope unit to rotate in the horizontal direction and swings the telescope unit in the prone direction. Arrangement control for controlling the driving unit based on the provided surveying instrument, the laser light projection device attached to the telescope unit of the surveying instrument, various calculations, and ranging angle data and marking position data from the surveying instrument A laser marking device having an offset amount between the telescope unit and the laser light projection device at the time of initial setting,
The arithmetic and control unit collimates a collimation target provided at a predetermined position with the telescope unit, and at that time, collimation procedure of the telescope unit that measures a horizontal angle and a vertical angle, and laser light is applied to the collimation target Relative angle data of the laser light projection direction with respect to the collimation direction of the telescope unit is obtained from the survey result obtained by projecting and measuring the laser beam collimation procedure for measuring the horizontal angle and vertical angle at that time, A laser marking apparatus that drives the drive unit so as to project a laser beam to a marking position based on the relative angle data when marking.

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