JP2010156659A - Calibration method and calibration program of laser marker, and electronic gyro system laser marker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a calibration method and a program of a laser marker capable of allowing a bright line to agree easily with a reference position of an irradiation object. <P>SOLUTION: A first light emitting/receiving device 1 is arranged on a position separated at a fixed distance in accordance with a reference E, and a second light emitting/receiving device 2 is arranged in accordance with the reference E, on a position separated at a fixed distance from the first light emitting/receiving device 1, and an electronic gyro type laser marker 1 is installed. In this calibration method of the electronic gyro type laser marker 1, linear light A is projected from the electronic gyro type laser marker 1 toward the first and second light emitting/receiving devices 2, 3, and the first and second light emitting/receiving devices 2, 3 output position deviation signals G, H, and control operation of the electronic gyro type laser marker 1 is performed so that the position deviation signals G, H of the linear light A become zero, and the attitude of the electronic gyro type laser marker 1 when the position deviation signals G, H of the linear light A become zero is reset as an attitude without inclination. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a laser inking device that projects laser line light for inking (hereinafter referred to as “bright line”) onto an irradiated object such as a wall, ceiling, or floor in a construction site. The present invention relates to a bright line position calibration method, a calibration program, and an electronic gyro system laser marking device for enabling a bright line to be projected with high accuracy with respect to a reference position determined on an object to be irradiated.

  Conventionally, semiconductor lasers are generally used as laser light sources in laser marking devices. Since the laser light emitted from the semiconductor laser is diffused light, it is converted into a nearly parallel light beam by a collimator lens and diffused only in one direction by transmitting it through a cylindrical rod lens. The laser marking device projects light onto an irradiated object such as a floor and projects vertical bright lines or horizontal bright lines by laser light. The laser marking device is suspended by the gimbal mechanism so that the pendulum always maintains a predetermined posture so that the vertical or horizontal emission line is correctly projected even if the installation posture is tilted. A laser light source unit in which a rod lens or the like is integrally held by a holder is attached to the pendulum so that the light source unit always maintains a predetermined posture.

  When using a laser marking device at a construction site, etc., determine the installation position and orientation of the laser marking device so that the emission line passes through the reference position that was originally set on the irradiated object such as a wall, ceiling, or floor. Is desirable. However, since the position of the irradiated object and the installation position of the laser marking device are separated, it is extremely difficult to align the emission line with the reference position of the irradiated object while adjusting the setting position and orientation of the laser marking device. It is. Moreover, slight movement of the laser marking device causes the bright line to move greatly at the position of the irradiated object, and manual adjustment is not easy. In addition, when the surroundings are bright, it may be difficult to recognize the bright lines with the naked eye, which makes it more difficult to align the bright lines to the reference position.

  There is a light receiver capable of confirming the bright line irradiated from the laser marking device at the position of the irradiated object. This light receiver is completely independent of the laser marking device, and simply detects where the bright line is located by turning on the display element when the bright line is received. Therefore, even if there is a light receiver as described above, if the position of the bright line is confirmed by the light receiver, it is marked as a temporary reference point, and the position necessary for the original work from this temporary reference point. It was necessary to measure the distance to the distance using a ruler. For example, in order to produce a horizontal line at a predetermined height position of the irradiated object, a horizontal bright line irradiated to the irradiated object (this bright line is difficult to match the reference position and is shifted from the reference position). Were obtained by adding or subtracting the distance to the target reference position at each location, and connecting the obtained points. For this reason, it is difficult to maintain the accuracy of the line at the original reference position.

  Therefore, in Patent Document 1, the laser marking device main body that irradiates the irradiated body with the bright line by the laser light, and the laser beam from the laser marking device main body that is arranged on the irradiated body side and receives the laser light to shift the light receiving position. And a communication means for transmitting a deviation direction signal of the light receiving position detected by the light receiving device to the laser marking device body, and the laser marking device body changes the emitting direction of the laser beam, A method of controlling the rotational position by driving the rotation means in a direction to eliminate the deviation of the light receiving position based on the light receiving position deviation direction signal transmitted from the light receiving device is disclosed. According to the invention described in Patent Document 1, the bright line can be easily aligned with the reference position of the irradiated object, and an accurate inking operation can be performed by one worker.

  In Patent Document 2, two divided light receiving elements and a light receiving restriction member disposed in front of these light receiving elements are formed, and a dividing line of the two light receiving elements and one edge of the light receiving restriction member are mutually connected. When the laser detector is installed so that it is tilted and the line light is projected across the dividing line of the light receiving element, the ratio of the amount of light received by each divided light receiving element changes due to the movement of the line light. A receiver for a laser marking device is disclosed. According to the invention described in Patent Document 2, the light receiver detects the positional deviation of the line light projected from the laser marking device and the direction of the deviation, and also detects the deviation amount linearly. The ink discharger can be controlled quickly and accurately.

  However, the accuracy and accuracy of light emission of the laser marking device described in each of the above patent documents is adjusted by sensors such as an inclination sensor, and various sensors have a lifetime, so as time passes. There was a problem of losing accuracy and accuracy. In addition, the means for adjusting the accuracy and accuracy requires programming for controlling the laser marking device main body, but none of the above-mentioned patent documents describes this. If the position sensor of the laser marking device goes wrong, the position of the irradiated object and the installation position of the laser marking device are separated from each other. It has been extremely difficult to solve the above-mentioned problems such as aligning the bright line with the reference position of the irradiation body.

JP 2004-144495 A JP 2007-10376 A

The present invention has been made to solve the above-described problems of the prior art, and even if various sensors such as an inclination sensor lose accuracy, the bright line can be easily aligned with the reference position of the irradiated object. Therefore, an object of the present invention is to provide a laser marking device calibration method, calibration program, and electronic gyro laser marking device capable of performing marking operations with high accuracy or accuracy.
It is another object of the present invention to provide a laser marking device calibration method, a calibration program, and an electronic gyro type laser marking device that can easily perform highly accurate calibration work by a single operator.

  The present invention includes a step of projecting a standard projector that emits a bright emission line with no error, a step of projecting a bright light from the standard projector by aligning the level with the reference line, and a projecting direction of the bright line from the reference line. The step of arranging the first light receiver with the level aligned with the reference line at a position separated by a certain distance, and the second level with the level aligned with the reference line at a position separated from the first light receiver by a certain distance. A step of arranging a photoreceiver, a step of installing an electronic gyro type laser marking device in place of the standard projector, and a bright line from the electronic gyro type laser marking device toward the first and second light receiving devices. A step of outputting the line light misalignment signal from the first and second light receivers, and receiving the bright line misalignment signal by the electronic gyro-type laser marking device; So that the signal is zero. The step of performing the tilt control operation of the electronic gyro type laser marking device, and the posture of the electronic gyro type laser marking device when the bright line positional deviation signal becomes zero is reset as the posture without tilting. The main feature is a method for calibrating an electronic gyro-type laser marking device.

  According to the present invention, even if various sensors built in a laser marking device such as a tilt sensor are deteriorated, it can be easily calibrated so that the bright line matches the reference position of the irradiated object.

It is a perspective view which shows typically the Example of the calibration method of the electronic gyro system laser marking device concerning this invention. It is a schematic diagram which shows the Example of the calibration method of the electronic gyro system laser marking device concerning this invention. It is a block diagram which shows the control circuit of the calibration method of the electronic gyro system laser marking device in the Example of this invention. It is a flowchart which shows the Example of the program concerning this invention. It is a flowchart which shows the Example of the program concerning this invention following the flowchart of FIG.

Hereinafter, embodiments of an electronic gyro laser marking device calibration method, calibration program, and electronic gyro laser marking device according to the present invention will be described with reference to the drawings. In the following description, the reference line is horizontal, but the scope of the present invention is applicable to the case where the reference line is vertical.
As shown in FIG. 1, the calibration method of the laser marking device according to the present invention includes an electronic gyro type laser marking device main body 1, a first light receiver 2 and a second light receiving device which are arranged at the same horizontal level. It implements using the light receiver 3 and the standard light projector which is not illustrated. Line A is a horizontal line and line B is a vertical line. A line C indicates the distance between the electronic gyro system laser marking device body 1 and the first light receiver 2, and a line D indicates the distance between the first light receiver 2 and the second light receiver 3. E indicates a horizontal reference point or a horizontal reference line.

  In the embodiment shown in FIG. 1, first, a standard projector (not shown) that projects a horizontal line light A that is not distorted is installed at a horizontal reference point E according to the horizontal level, and the horizontal line light A is projected from the standard projector. To do. Subsequently, the first light receiver 2 is arranged at a position that is a fixed distance, for example, 5 m away from the horizontal reference point E along the light projection direction of the horizontal line light A, with the horizontal level aligned with the horizontal reference point E. . Further, the second light receiver 3 is arranged at a position away from the first light receiver 2 in the horizontal direction by a certain distance, for example, 5 m, with the horizontal level adjusted to the horizontal reference E. Next, an electronic gyro laser marking device 1 to be calibrated is installed instead of the standard projector. In order for the first light receiver 2 and the second light receiver 3 to maintain the above-described horizontal relationship, an appropriate arrangement order and arrangement method can be used. The line C and the line D are preferably the same length from the viewpoint of measurement for geometrically calibrating horizontal line light.

  In FIG. 2, the electronic gyro system laser marking device 1 includes a first receiver 1a and a second receiver 1b. The 1st light receiver 2 is provided with the 1st light-receiving part 2a, the 2nd light-receiving part 2b, and the transmission part 2c. The 2nd light receiver 3 is provided with the 1st light-receiving part 3a, the 2nd light-receiving part 3b, and the transmission part 3c. A line F indicates horizontal line light inclined with respect to the horizontal line, and a line E indicates a horizontal reference line with no deviation based on the horizontal reference point E in FIG. The radio wave G is a signal transmitted from the first light receiver 2, and the radio wave H is a signal transmitted from the second light receiver 3. Lines I and J show the horizontal line light when the inclination of the front-rear direction, that is, the elevation angle with respect to the horizontal reference line E of the laser marking device 1 is generated, and the line I has the elevation angle shifted upward. In this case, the line J indicates a case where the elevation angle is shifted downward.

  The electronic gyro system laser marking device 1 projects horizontal line light toward the first receiver 2 and the second receiver 3. The first light receiving part 2a and the second light receiving part 2b of the first light receiver 2 are composed of light receiving elements such as photodiodes, and are arranged above and below to detect the detection signals 2A and 2B of the light receiving parts 2a and 2b. Modulated into a radio signal G and output from the transmitter 2c to the laser marking device 1. The laser marking device 1 demodulates the radio wave signal G and calculates a difference signal between the detection signals 2A and 2B of the light receiving portions 2a and 2b. If this calculation signal is zero, the elevation angle of the horizontal line light emitted from the laser marking device 1 is not deviated. When the elevation angle of the laser marking device 1 is deviated, the light receiving position of the horizontal line light is shifted to the light receiving unit 2a or the light receiving unit 2b, so that the calculation signal becomes 2A> 2B or 2A <2B. If the calculation signal becomes 2A> 2B, the elevation angle of the laser marking device 1 is inclined upward, and the horizontal line light is projected toward the light receiving unit 2a. On the contrary, if the calculation signal becomes 2A <2B, the elevation angle of the laser marking device 1 is inclined downward, and the horizontal line light is projected toward the light receiving portion 2b.

  The first light receiving part 3a and the second light receiving part 3b of the second light receiving device 3 are also made up of light receiving elements such as photodiodes and are arranged vertically, and the detection signals 3A and 3B of the light receiving parts 3a and 3b are received. The radio wave signal H is modulated and output from the transmission unit 3 c to the laser marking device 1. The laser marking device 1 demodulates the radio wave signal H and calculates a difference signal between the detection signals 3A and 3B of the light receiving portions 3a and 3b. If this calculation signal is zero, the horizontal line light emitted from the laser marking device 1 is projected along the boundary line between the upper and lower light receiving portions 3a and 3b. If the arithmetic signal is 3A> 3B, the horizontal line light is projected toward the light receiving portion 3a. On the contrary, if the calculation signal is 3A <3B, the horizontal line light is projected toward the light receiving portion 3b.

  In the electronic gyro type laser marking device 1, the elevation angle control unit controls the operation of the elevation angle adjusting actuator based on the radio signal G, so that the difference between the detection signals 2A and 2B becomes zero. Adjust the elevation angle of the main unit. Similarly, on the basis of the radio signal H, the left / right tilt control unit controls the operation of the left / right tilt adjusting actuator, and the electronic gyro laser marking device 1 main body so that the difference between the detection signals 3A and 3B becomes zero. Adjust the left and right posture. Note that the elevation angle may deviate from the reference by adjusting the tilt in the left-right direction. Therefore, the adjustment of the elevation angle and the tilt adjustment in the left-right direction may be repeated several times.

  In this way, the detection position of the angle sensor provided in the electronic gyro laser-developing device 1 is replaced with zero tilt while the elevation angle and the horizontal tilt are both adjusted to zero. That is, even if the elevation detection value and the left-right direction tilt detection value of the angle sensor are values other than zero in the state adjusted to zero, the values are reset to the zero point. As a result, the electronic gyro laser marking device 1 is accurately set to the zero point with respect to the tilt in the front-rear direction, that is, the elevation angle, and the direction orthogonal to the tilt, that is, the tilt in the left-right direction. Therefore, even if the electronic gyro-type laser marking device 1 and the tilt sensor built in the electronic gyro-type laser marking device 1 have a service life problem or the like, even if a zero point shift occurs, the projection line can be accurately projected. Can be calibrated.

  There may be a plurality of receiving units 1a and 1b for the first misregistration signal G and the second misregistration signal H in the electronic gyro system laser marking device 1, as in this embodiment. It may be in the form of signal processing. Each of the receiving units 1a and 1b can use an appropriate receiving method, and may be wireless using a radio wave band such as a short wave as in this embodiment, or may be wired such as an Internet line. . The light receiving means of the light receiving portions 2a and 2b of the first light receiving device 2 and the light receiving portions 3a and 3b of the second light receiving device 3 can be appropriately used, such as a photodiode as in the embodiment. The photoelectric element may be used. Further, the deviation of the light receiving position may be directly detected by using a CCD line sensor.

  FIG. 3 is a block diagram showing an example of an electrical system incorporated in the electronic gyro system laser marking device 1. The electronic gyro system laser marking device 1 includes a first receiver 1a, a second receiver 1b, a CPU 21, an elevation angle actuator 16 that adjusts the tilt of the main body, a tilt adjustment actuator 17, and a tilt. The sensor 18 is configured. The CPU 21 includes an elevation angle detection unit 11, an inclination detection unit 12, a memory 13, an elevation angle control unit 14, an inclination control unit 15, a calculation unit 19, and a bus 20.

  In FIG. 3, as long as the first receiver 1a and the second receiver 1b can receive the signal G and the signal H, appropriate communication means can be used. Communication using electromagnetic waves may be used, or infrared communication may be performed using an optical sensor, or an I / O port may be used using an Internet line.

  The first receiver 1a detects a radio wave signal G indicating a shift in elevation angle resulting from a shift between the horizontal reference line E in FIG. 2 and the projection light, and the elevation angle detection unit 11 demodulates the radio wave signal G, A calculation unit 19 calculates a difference signal between the detection signals 2A and 2B of the light receiving units 2a and 2b. If this calculation signal is zero, the elevation angle of the horizontal line light emitted from the laser marking device 1 is not deviated. When the elevation angle of the laser marking device 1 is deviated, the light receiving position of the horizontal line light is shifted to the light receiving unit 2a or the light receiving unit 2b, so that the calculation signal becomes 2A> 2B or 2A <2B. If the calculation signal becomes 2A> 2B, the elevation angle of the laser marking device 1 is inclined upward, and the horizontal line light is projected toward the light receiving unit 2a. On the contrary, if the calculation signal becomes 2A <2B, the elevation angle of the laser marking device 1 is inclined downward, and the horizontal line light is projected toward the light receiving portion 2b. Based on the calculated information and the drive information stored in the memory 13, the calculation unit 19 transmits information for posture control of the main body of the electronic gyroscopic laser marking device 1 to the depression angle control unit 12. The elevation angle control unit 14 activates the elevation angle adjustment actuator 16 based on the transmitted information, and shifts in the elevation direction of the horizontal projection light F emitted by the electronic gyroscopic laser marking device 1, that is, the detection signals 2A and 2B. Calibrate the vertical position so that the difference signal is zero.

  The second receiver 1b detects a radio wave signal H indicating a left / right shift caused by a shift between the horizontal reference line E in FIG. 2 and the projection light, and the inclination detector 12 demodulates the radio wave signal H, Based on the difference signal between the detection signals 3A and 3B of the light receiving units 3a and 3b, the calculation unit 19 calculates the angle of the inclination K. If this calculation signal is zero, the horizontal line light F emitted from the laser marking device 1 is projected along the boundary line between the upper and lower light receiving portions 3a and 3b. If the arithmetic signal is 3A> 3B, the horizontal line light F is projected toward the light receiving portion 3a. On the contrary, if the calculation signal becomes 3A <3B, the horizontal line light F is projected toward the light receiving portion 3b. Based on the drive information stored in the memory 13 and the demodulated radio wave signal H, the arithmetic unit 19 sends information for controlling the posture of the main body of the electronic gyroscopic laser marking device 1 to the tilt control unit 15. The tilt control unit 15 sends an instruction to the tilt adjustment actuator 17 so that the tilt K of the horizontal projection light F emitted by the electronic gyro laser decimation device 1, that is, the difference between the detection signals 3A and 3B becomes zero. Adjust the horizontal position of the gyroscopic laser marking device 1 body. Note that the elevation angle may deviate from the reference by adjusting the tilt in the left-right direction. Therefore, the adjustment of the elevation angle and the tilt adjustment in the left-right direction may be repeated several times.

  The memory 13 stores the position information of the main body based on the horizontal reference line E used in FIG. 1, but based on the horizontal information adjusted by the calibration method of the present embodiment, the memory 13 is refreshed, By changing the zero point, it is possible to ensure the light projection of the horizontal line even when the inclination sensor 18 is out of order. Note that the value of the tilt sensor in the state adjusted as described above may be replaced with the zero point without refreshing the memory 13. As the tilt sensor 18, an appropriate sensor such as a semiconductor position sensor can be used in addition to the gyro sensor used in this embodiment.

  FIG. 4 is a flowchart showing an embodiment of the program of the present invention. In FIG. 4, the operation steps are represented as S1, S2,. Waiting for the input of signals from each of the receivers 1a and 1b in FIG. 2 (S1), if there is an input, it is determined from the radio signal G whether the signal from the first light receiver 2 is deviated from the horizontal line ( S2). In the detection signals of the light receiving portions 2a and 2b, the detection signal 2A is defined as the upward direction, the detection signal 2B is defined as the downward direction, and if the calculation signal is 2A> 2B, the elevation angle of the laser marker 1 is upward. The horizontal line light F is inclined toward the light receiving portion 2a and is projected. Using this calculation signal, it is determined whether the horizontal line light F is displaced in the direction of line I, that is, in the upward direction (S3). When there is a deviation in the direction of line I, it is determined whether or not the difference between 2A and 2B is large by providing a certain reference value (S4). When the difference is large, the motor is driven to move downward. It is determined again whether the 2A signal is larger than the 2B signal, and the motor is driven downward at a speed corresponding to the magnitude of the difference.

  If the difference between 2A and 2B becomes smaller in step S4, it means that the horizontal line light F in FIG. 2 has approached parallel to the horizontal reference line E, so the motor is driven downward at a low speed (S6). Then, it is determined whether or not the above 2A and 2B are equal (S6). If 2A = 2B is not satisfied in step S7, it is determined whether 2A> 2B (S9). If 2A> 2B, that is, if the horizontal line light F is still shifted upward, the process returns to step S6. If 2A> 2B is not satisfied, that is, if overrun occurs, the motor is driven at a low speed in the upward direction (S10), and the process returns to step S7 to determine again whether 2A and 2B are equal. If 2A = 2B, the motor is stopped (S8).

  If 2A> 2B is not satisfied in step S3, that is, if the downward signal is larger than the upward signal, only the operations described above and “2A” and “2B” are reversed, and similar to the operations described above. Since it operates, explanation is omitted.

  FIG. 5 is a continuation of the flowchart showing the embodiment of the program of the present invention. It is determined whether or not the radio wave H from the second light receiver 3 indicates a deviation from the horizontal line (S17). In FIG. 2, the detection signals 3A of the light receiving sections 3a and 3b are defined as clockwise signals directed clockwise and the detection signals 3B defined as signals directed leftward clockwise. If the calculation signal becomes 3A> 3B, the horizontal direction of the laser marking device 1 is inclined upward to the left, and the horizontal line light is projected toward the light receiving unit 3a. Using this calculation signal, it is determined whether the calculation signal is 3A> 3B, that is, whether there is an inclination in the upward direction (S18). If the right direction signal is larger than the left direction signal, it is determined whether or not the difference is large with a certain standard of 3A and 3B (S19). When the difference is large, the motor is driven at high speed so as to move leftward. It is determined again whether the right signal is larger than the left signal, and the motor is driven left at a speed corresponding to the magnitude of the difference.

  In the subsequent steps, “2A” and “2B” in FIG. 4 are simply reversed as “3A” and “3B”. Finally, if 3A = 3B, the motor is stopped (S25), and information for making the new position information the zero point reference is sent to the memory 13 in FIG. 3 (S26), and the operation ends. That is, the motor is stopped in a state where the horizontal line light F in FIG. The flow chart in the horizontal direction in FIG. 4 and the flow chart in the vertical direction in FIG. 5 are variable in order to be able to calibrate the posture of the inking device body 1, and until the calibration at the zero point is completed, It is preferable that the flowcharts of FIGS. 4 and 5 are repeated.

  In the illustrated embodiment, the bright line is in the horizontal direction, but the case of setting the vertical bright line can be dealt with by the same technical idea. Since the relationship between the first light receiver 2 and the second light receiver 3 described above is the same as the operation described above only from the horizontal to the vertical, the description is omitted. Further, an appropriate memory can be used as the built-in memory 13 in the embodiment, and an external storage may be used.

DESCRIPTION OF SYMBOLS 1 Electronic gyro system laser marking device 1a 1st light-receiving part 1b 2nd light-receiving part 2 1st light-receiving device 2a 1st light-receiving part 2b 2nd light-receiving part 2c Transmitting part 3 2nd light-receiving device 3a 1st Light receiving unit 3b second light receiving unit 3c transmitter 11 elevation angle detector 12 tilt detector 13 memory 14 elevation controller 15 tilt controller 16 elevation actuator 17 tilt adjustment actuator 18 tilt sensor 19 calculator 20 bus 21 CPU

Claims (10)

A step of projecting a standard light projector that emits line light without any deviation and aligning the level with the reference line, and projecting the line light from the standard light projector,
A step of arranging a first light receiver with a level aligned with the reference line at a position away from the reference line by a certain distance along the light projection direction of the line light;
Placing the second light receiver at a position away from the first light receiver by aligning the level with the reference line; and
Replacing the standard projector with an electronic gyro laser marking device;
Projecting line light from the electronic gyro-type laser marking device toward the first and second light receivers, and outputting a position shift signal of the line light from the first and second light receivers;
A step of receiving the position deviation signal of the line light by the electronic gyro type laser marking device and performing an inclination control operation of the electronic gyro type laser marking device so that the position deviation signal of the line light becomes zero; and ,
A step of resetting the posture of the electronic gyro type laser marking device when the position error signal of the line light becomes zero to a posture without inclination, and a calibration method for the electronic gyro type laser marking device. .   2. The method of calibrating an electronic gyro type laser marking device according to claim 1, wherein the direction of the line light is a horizontal direction.   2. The method of calibrating an electronic gyro laser marking device according to claim 1, wherein the direction of the line light is a vertical direction.   4. The method of calibrating an electronic gyro type laser marking device according to claim 1, wherein the elevation angle of the laser marking device is calibrated based on a positional deviation signal of the line light from the first light receiver.   After adjusting the elevation angle of the laser marking device to be calibrated by the position deviation signal of the line light from the first light receiver, the electronic gyro system laser marking is performed by the position deviation signal of the line light from the second light receiver. 5. The method of calibrating an electronic gyro type laser marking device according to claim 1, wherein the inclination of the device is adjusted.   6. An electronic gyro system laser according to claim 1, wherein the electronic gyro system laser marking device includes an inclination angle sensor, and the state of the angle sensor when the position error signal of the line light becomes zero is replaced with zero inclination. How to calibrate the ink generator. In order to calibrate the angle of the line light of the electronic gyro type laser marking device,
An elevation angle detector that receives a detection signal from the first light receiver arranged at a position a certain distance away from the reference line in the direction of projecting the line light and aligns the level with the reference line, and uses this as an elevation signal,
An elevation angle control unit for controlling the elevation angle adjustment actuator so that the signal of the elevation angle signal becomes zero,
An inclination detector that receives a detection signal from the second optical receiver disposed at a position away from the first optical receiver by a certain distance in the reference direction with the level adjusted to the reference point, and uses the detection signal as an inclination signal. ,
A tilt control unit that controls the tilt adjusting actuator so that the tilt signal becomes zero;
After the elevation angle control unit and the tilt control unit are operated so that the elevation angle signal and the tilt signal are zero when the light is projected by the standard projector, the electronic gyro laser ink to be calibrated is installed instead of the standard projector. Rewriting means for rewriting the memory as the elevation angle signal and the tilt signal in the posture without the tilt of the electronic gyro method laser marking device when the elevation angle signal and the tilt signal are projected by the ejector,
A calibration program for an electronic gyro-type laser marking device.   The electronic gyro laser marking device calibration program according to claim 7, wherein the direction of the line light is a horizontal direction.   The electronic gyro laser marking device calibration program according to claim 7, wherein the direction of the line light is a vertical direction. An elevation angle detecting means for receiving a detection signal from a first light receiver arranged at a position a certain distance away from the reference line in the direction of projecting the line light and aligning the level with the reference line, and using this as an elevation angle signal;
Elevation angle control means for controlling the elevation angle adjustment actuator so that the elevation angle signal becomes zero,
An inclination detecting means for receiving a detection signal from the second optical receiver disposed at a position away from the first optical receiver by a certain distance in accordance with the reference point and using the detection signal as an inclination signal;
Tilt control means for controlling the tilt adjustment actuator so that the tilt signal becomes zero;
After the elevation angle control unit and the tilt control unit are operated so that the elevation angle signal and the tilt signal are zero when the light is projected by the standard projector, the electronic gyro laser ink to be calibrated is installed instead of the standard projector. Rewriting means for rewriting the memory as the elevation angle signal and the tilt signal in the posture without the tilt of the electronic gyro method laser marking device when the elevation angle signal and the tilt signal are projected by the ejector,
Electronic gyro system laser marking device equipped with.

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