JPH08189830A - Automatic marking method and apparatus utilizing laser light stand - Google Patents

Abstract

PURPOSE: To automatically carry out marking at high precision by using a laser light stand. CONSTITUTION: Two laser light stands 5 which radiate two laser beams, respectively, turning in mutually reverse directions on the horizontal plane are installed at reference points 9, 10. A carriage 1 which can move freely is provided with two light sensors 3, a marking position computing means 4, and an XY plotter 2 for marking. Based on the light receiving time intervals detected by the light sensors 3 and the natural period of the laser light stands 5, the marking position is computed and marking is done by the XY plotter 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic marking method and apparatus using a laser lighthouse for automatically marking a floor surface in a construction work.

[0002]

2. Description of the Related Art A conventional marking-out method determines a marking-out point by measuring a distance and an angle from a reference point using a total station, a theodolite, a level and the like. Therefore, it is common practice to pull these ink points from each other by pulling the thread attached with the ink contained in the urn called the ink jar and repelling it on the floor surface with tension to attach the line with the ink. It was target.

[0003]

SUMMARY OF THE INVENTION As described above, the method of marking out by using the ink fountain requires at least one engineer and one assistant, which is troublesome and troublesome. In addition, it was the current situation that precision was left to the level of engineers.

It is an object of the present invention to propose a method and apparatus for automatically performing highly accurate marking using a laser lighthouse.

[0005]

In the automatic marking method using the laser lighthouse of the present invention, two laser beams are radiated by radiating two laser beams in opposite directions in the horizontal plane at uniform and uniform gyration speeds. Install the laser lighthouse at the reference point, measure the position of the reference point, calculate the coordinates of the reference point, input the marking point, and move the cart equipped with the marking-out XY plotter to the marking position. Then, the marking position is calculated from the light receiving time interval detected by the two light receiving sensors on the truck and the natural period of the laser lighthouse, and the marking is performed by the XY plotter on the truck.

Further, the automatic marking apparatus using the laser lighthouse of the present invention is movable with two laser lighthouses which respectively irradiate two laser beams in the opposite directions in the horizontal plane at the same uniform rotation speed. And a XY plotter for stake-out position calculation means for calculating a stake-out position from the light-receiving time intervals detected by the sensors and the natural period of the laser lighthouse. I have it.

The laser beam implemented in the present invention has a sine curve-like change in light intensity as is well known, and the distance is measured by the time delay.

[0008]

As described above, according to the present invention, the two laser beams that rotate in opposite directions from the two laser lighthouses installed at the reference point are received by the two light receiving sensors on the carriage, respectively.
It is possible to calculate the position and direction of the dolly and automatically perform marking on the marking position by the XY plotter.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. The present invention enables three-dimensional measurement by providing a light receiving sensor for measuring the height, but here, for the sake of easy understanding, a two-dimensional or planar measurement example is shown. is there.

In FIG. 1, the apparatus of the present invention is provided with a carriage 1 that moves on a floor F. The carriage 1 has an XY plotter 2 for marking out, two laser light receiving sensors 3, and a personal computer. The mark-out position calculating means 4 and the inclinometer 11 (see FIG. 2) configured by are provided. Furthermore, the setting prism 9 installed on the floor F
There are provided two laser lighthouses 5 provided with a and 10a, a total station 6 used to install the laser lighthouse 5, reference points 7 and 8, and first and second reference points 9 and 10. The prism is used to obtain reflected light parallel to the incident light.

The two laser lighthouses 5 respectively irradiate two laser beams in a horizontal plane so as to rotate in opposite directions to each other at a uniform rotating speed, and the laser light receiving sensors 3 on the carriage 1 respectively receive the two laser beams. It has become.

As shown in FIG. 2, the mark-out position calculating means 4 includes an arithmetic unit 4a, light receiving sensors 3 and 3, and an inclinometer 1.
Interface 4 for transmitting the output of 1 to the arithmetic unit 4a
c and an input device 4b for inputting an initial value such as a marking point. Further, the arithmetic unit 4a is provided with information of the trolley position calculating means 12a for calculating the position of the trolley 1 from the light receiving time interval detected by the two laser light receiving sensors 3 and the natural period of the laser lighthouse 5, and the information of the inclinometer 11. A correction means 12b for calculating a tilt correction value in the receiving vertical direction, and an XY plotter output means 1 for converting and calculating a previously input blacking-out point into coordinates of the XY plotter 2 at the current position and outputting it to the XY plotter 2.
2c are provided.

The mode of automatic marking will be described below with reference to FIGS. 3 and 4.

First, the total station 6 is placed at an arbitrary position on the floor F where marking is performed, and the prism 9 is coaxially arranged on the first and second reference points 9 and 10.
The laser lighthouse 5 on which a and 10a are installed is arranged, and the positions of the laser lighthouse 5 are set to P1 and P2, respectively (step S
1).

Next, at the total station 6, floor F
Positions P of arbitrary reference points 7 and 8 that can be collimated from
Collimate _A and P _B , and then position P 1 and P of the laser lighthouse 5.
2 is collimated and the positional relationship between P _A and P _B and P1 and P2 is measured (the reference points 7 and 8 are, for example, the center line of the building described around the site) (step S2).

Therefore, the coordinates of the positions P1 and P2 of the laser lighthouse 5 are input to the marking-out position calculating means 4 mounted on the carriage 1, and the coordinates P1 and P2 are entered on the floor F in advance.
The positional relationship of is calculated (step S3).

The mark-out point is input in advance to the mark-out position calculating means 4 (step S4). Then, while maintaining the state in which the light receiving sensor 3 faces the laser lighthouse 5, X
Cart 1 until Y plotter 2 reaches the squeegee possible range
Is moved (step S5).

When the carriage 1 reaches the marking range, the marking position calculating means 4 precisely positions the marking point, and the marking XY plotter 2 marks the marking point (step S6).

Returning to step S4, marking is automatically performed by the same operation.

Next, the precise positioning of the marking point by the marking position calculating means 4 in step S6 will be described with reference to FIG.

From the laser lighthouse 5, two laser beams, which rotate in opposite directions and have the same turning speed, are emitted. This light beam is detected by the light receiving sensor 3, and the data of the light receiving time interval is input to the carriage position calculating means 12a (step S1).
1).

The trolley position calculating means 12a compares this data with the rotation cycle peculiar to the lighthouse to calculate the angles θ1 and θ2. The coordinate position of the light receiving sensor 3 is calculated from the angles from the two laser lighthouses 5 and the coordinates P1 and P2 calculated in step S3. In this way, the coordinates of the two light receiving sensors 3 are calculated to calculate the position and horizontal direction of the carriage 1 (step S12).

Next, the data of the inclinometer 11 is corrected by the correction means 12
It is input to b and the inclination in the vertical direction is corrected (step S13).

Then, in the XY plotter output means 12c, the coordinates of the marking point input in step S4 are converted into the values of the X axis and the Y axis of the XY plotter 2 at the current carriage position (step S14), and the XY plotter 2 is converted. (Step S15), and the marking is performed (step S1).
6).

[0025]

As described above, according to the present invention, marking can be automatically performed with high accuracy, labor can be saved, and the construction cost can be reduced. Further, it is possible to speed up the work by simultaneously using a plurality of marking-out devices.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention.

FIG. 2 is a control block diagram of a mark-out position calculating unit.

FIG. 3 is a plan view illustrating an aspect of automatic marking.

FIG. 4 is a flowchart diagram.

FIG. 5 is a detailed flowchart diagram.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Bogie 2 ... XY plotter 3 ... Light receiving sensor 4 ... Inking position difference calculation means 4a ... Arithmetic device 4b ... Input device 4c ... Interface 5 ... Laser lighthouse 6 ... Total station 7, 8, 9, 10 ... Reference point 9a, 10a ... Prism 11 ... Inclinometer 12a ... Cart position calculating means 12b ... Correction means 12c ... XY plotter Output means

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yoshiyuki Shimano 1-3-8 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Tokyo branch office (72) Inventor Satoru Miura 2--19, Tobita, Chofu-shi, Tokyo No. 1 Kashima Construction Co., Ltd. Technical Research Institute (72) Inventor Kenji Shibata 19-19 Tobita, Chofu, Tokyo Metropolitan Government No. 19 Kashima Construction Co., Ltd. Technical Research Laboratory (72) Inventor, Isamu Ishii 2-2-1, Tobita, Chofu, Tokyo No. 1 Kashima Construction Co., Ltd. Technical Research Center

Claims (2)

[Claims] 1. Two laser lighthouses, each of which irradiates two laser beams in opposite directions in the horizontal plane at the same uniform rotating speed, are installed at a reference point, and the position of the reference point is measured. The coordinate of the reference point is calculated by inputting the mark-out point, the carriage equipped with the mark-out XY plotter is moved to the mark-possible position, and the light-reception time interval detected by the two light-receiving sensors on the carriage and An automatic marking method using a laser lighthouse, wherein the marking position is calculated from the natural period of the laser lighthouse, and the XY plotter on the carriage carries out marking. 2. Two laser lighthouses, each of which irradiates two laser beams in opposite directions in the horizontal plane at the same uniform rotating speed, and a movable carriage are provided, and the two light-receiving sensors are provided on the carriage. An automatic black ink using a laser lighthouse, characterized by comprising a squeeze position calculating means for calculating a squeeze position from the light receiving time interval detected by the sensor and the natural period of the laser lighthouse, and an XY plotter for stakeout. Output device.