JP4061414B2 - Apparatus and method for measuring room dimensions - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an apparatus for optically measuring the dimensions of a room using a laser distance meter, and is particularly easy to handle and easy to carry and accurately measures the distance from the laser distance meter to the corners and corners of the room. It is configured so that it can be measured.
[0002]
[Prior art]
When laying tatami mats, carpets, etc., the dimensions of the indicated room are not necessarily the same as the actual dimensions of the room. We cut tatami mats and carpets according to the shape of the.
[0003]
As an apparatus for optically measuring the actual size of such a room, apparatuses proposed in Japanese Patent Application Laid-Open Nos. 2000-310532 and 2001-74459, etc. have a base, and the base is rotatable. A rotary table mounted on the rotary table, a rotary encoder mounted on the rotary table and generating a number of pulses proportional to the rotation angle of the rotary table with respect to the base, and a pulse output from the rotary encoder. A counter for counting, a laser distance meter mounted on the rotating table and measuring the distance to the wall of the room, and the counter value (corresponding to the azimuth) and the output of the laser distance meter are stored in polar coordinate data. Storage means is provided.
[0004]
This distance and azimuth measuring device is installed in the center of the room, and the azimuth and distance of the room to be measured is collected by optical measurement with polar coordinates while rotating the turntable, and the room is collected with these polar coordinates. Is converted into two-dimensional coordinates to obtain the room dimensions.
[0005]
[Problems to be solved by the invention]
The shape of the room is formed by the corners and corners where the straight part intersects the two straight parts, and the position of the corners and corners is particularly important when laying tatami mats, carpets, etc. It must be measured accurately. Even when the laser beam B from the laser distance meter is directed to the corner S or the corner K, the laser beam spreads instead of a line as shown in FIG. It is unclear what portion of the reflected laser beam in the expanded laser beam was used for measurement, and the output distance data and angle data are of low reliability.
[0006]
Therefore, in the apparatus for measuring a room size disclosed in Japanese Patent Laid-Open Nos. 2000-310532 and 2001-74459, two straight lines X sandwiching the corner S or the corner K as shown in FIG. The positions of two points X11, X12, X21, X22 and Y1, Y12, Y21, Y22 on Y are respectively obtained, and the positions X0, Y0, Y01 where the two straight lines X, Y connecting the two points cross each other are virtually It is indirectly measured as a corner or corner.
[0007]
Thus, when a straight line is determined by a line segment connecting two points, if the distance between the two points is insufficient and short, the determined straight line direction is inaccurate and an accurate corner or corner is determined. The position of the part cannot be obtained.
[0008]
Therefore, the dimension measuring apparatus of the present invention has been conceived to accurately measure the corners or corner positions of such a room to be measured.
[0009]
[Means for Solving the Problems]
The room dimension measuring apparatus of the present invention includes a base, a rotatable turntable provided on the base, a rotary encoder for detecting a rotation angle of the turntable with respect to the base,
A distance / azimuth measuring device comprising a motor for rotating the turntable, and a laser distance meter mounted on the turntable; It is divided into top and bottom and It has a high-reflectance linear reflector and two low-reflectance planes that sandwich the linear reflector. And a plane with high reflectivity in the other compartment The measurement marker is placed so that the high-reflectance linear reflector is along the ridgeline at the corner or the valley at the corner of the room, and the turntable is moved by the motor. The laser distance meter is operated while being rotated, and the distance data output from the laser distance meter is collected together with the azimuth angle data based on the highly reflective linear reflector.
[0010]
The room dimension measuring method of the present invention includes a base, a rotatable turntable provided on the base, a rotary encoder for detecting a rotation angle of the turntable with respect to the base, and the turntable. Motor and laser distance meter mounted on the above rotating table And a laser light source that emits a laser beam of a wide fan-shaped beam in the vertical direction that is aligned with the optical axis of the laser beam emitted from the laser distance meter. Install a distance / azimuth measuring device in the room,
High reflectance linear reflector and two low reflectance planes sandwiching the linear reflector And a light detection element disposed on an extension line of the linear reflector, and when the light detection element receives light, a light receiving signal is transmitted to the distance / azimuth measuring device. Align the high-reflectance linear reflector with the corner ridgeline or corner valley line of the room. Set in The laser rangefinder is rotated while the turntable is rotated by the motor. And laser light source Operate the above Azimuth angle data is collected based on the received light signal, and distance data based on the highly reflective linear reflector at this azimuth angle is collected. How to collect.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
(First embodiment)
According to the present invention, a room dimension measuring apparatus includes a distance / azimuth angle measuring apparatus 1 shown in the perspective view of FIG. 1 and corners and measurement markers installed at corners.
[0012]
As shown in the perspective view of FIG. 1, the distance / azimuth measuring apparatus 1 includes a circular base 2 having three legs 21 around which a large gear 22 is fixed concentrically, and the base 2. Is provided with a circular turntable 3 which is mounted rotatably.
[0013]
The turntable 3 has a rotary encoder 31 that detects the rotation angle of the turntable 3 relative to the base 2 and a small gear 39 that meshes with the large gear 22 of the base 2, and a motor 32 that rotates the turntable 3. And a laser distance meter 4, a battery for operating the device, a circuit board 5 incorporating a signal processing circuit, an operation unit 33 such as a keyboard, a display unit 34 for displaying input / output data, and data externally A connector 35 and the like to be taken out to the device are provided.
[0014]
As shown in FIG. 2, the signal processing circuit includes a CPU 50 for controlling the entire apparatus, a ROM 51 for storing a processing program, a RAM 52 for temporarily storing data, and a counter for counting pulses generated from the rotary encoder 31. 54, an SIO 55 that receives distance data output from the laser distance meter 4 and sends data to an external device, a control circuit 53 that controls the motor 32, and the like.
[0015]
In addition, a remote control receiver for remotely controlling the distance / azimuth measuring device 1 by operating the remote control transmitter 9 using radio waves or light rays is provided.
[0016]
The motor 32 for rotating the turntable 3 is controlled by the CPU 50 based on a signal sent from the remote control transmitter 9, and has a plurality of rotation patterns (high speed, low speed, forward rotation, reverse rotation, start, stop, etc.) ) Can be applied.
[0017]
As a laser distance meter 4, the module “DISTO pro” manufactured by Leica Geosystems, Switzerland ^Four "Laser distance sensor LDS-1" sold by Murakami Giken Sangyo Co., Ltd. incorporating "a" can be used. This laser rangefinder has "distance data" that indicates the distance to the target and "reflection intensity data" that indicates the intensity of the received reflected light as output data. A mode can be selected.
[0018]
As measurement markers, a corner measurement marker 6S applied to the valley line at the corner of the room and a corner measurement marker 6K applied to the ridge line at the corner of the room are prepared.
[0019]
As shown in FIG. 3, the corner measurement marker 6S is a flat plate bent at an acute angle, and has two black surfaces 63 with low reflectance on the inside, and has high reflectance on the inside along the crease portion. When the linear reflector 61 is provided and installed in the corner of the room, the linear reflector 61 can follow the valley line at the corner.
[0020]
If the floor and the sill are not at right angles, the linear reflector 61 cannot be made to follow the valley at the corner accurately. In that case, as the corner measurement marker 6S, As shown in FIG. 4, a flat plate bent at an acute angle, having two black low-reflectivity surfaces 63 on the inside and a high-reflectivity linear reflector 61 on the inner side along the crease portion In order to hold both end portions of the flat plate 63 inward to form parallel holding portions 64, and to hold the two surfaces of the flat plate 63 of the corner measurement marker 6S in close contact with the corner portions, A holding member 65 bent in a letter shape is attached to the holding portion 64 of the corner measurement marker 6S with screws, eyelets, or the like.
[0021]
As shown in FIG. 5, the corner measurement marker 6K is a flat plate bent at an obtuse angle, and has a black low reflectance two surface 63 on the outside, and a high reflectance on the outside along the crease portion. When the linear reflector 61 is provided and installed at the corner of the room, the linear reflector 61 can follow the ridgeline of the corner.
[0022]
Further, as shown in the perspective view of FIG. 6A, as the corner measurement marker 6K, a flat plate having a black low-reflectance surface is processed. A first vertical surface 67 and a horizontal surface 68 are formed by bending substantially at a right angle, a U-shaped cut 70 is made in the first vertical surface 67, and the second vertical curve 67 is bent at an acute angle along the second folding curve 75. A vertical reflector 69 is formed, and a highly reflective linear reflector 61 is provided along the second folding line 75. Further, as shown in FIG. 6C, a linear reflector 61 may be provided on the back surface of the second folding line 75.
[0023]
Then, as shown in the plan view of FIG. 6B, when the front surface of the first vertical surface 67 and the back surface of the second vertical surface 69 are pressed against the corner of the room, the corner measuring marker 6K is In addition, it is possible to stand by the horizontal plane 68 and to make the highly reflective linear reflector 61 follow the ridgeline of the corner.
[0024]
If the floor and the sill are not at right angles, the linear reflector 61 cannot be made to accurately follow the corner ridgeline. In that case, as shown in FIG. In this way, the flat plate is bent at an obtuse angle, has a black low-reflectance two surface 63 on the outside, and is provided with a high-reflectance linear reflector 61 on the outer side along the crease portion. The parallel holding portions 64 are formed by bending both ends of the flat plate inward. Then, in order to hold the linear reflector 61 of the corner measurement marker 6K in close contact with the corner, the holding member 65 bent in a U shape holds the corner measurement marker 6K by a screw, an eyelet, or the like. It is attached to part 64.
[0025]
A method for measuring the dimensions of a room using the distance / azimuth measuring apparatus 1 and the measurement markers 6S and 6K configured as described above will be described.
[0026]
The distance / azimuth measuring device 1 is installed at the center of the room, and as shown in the plan view of FIG. 8, the corner measuring marker 6S is installed at each corner of the room, and the corner is measured at each corner. The marker 6K is installed and the distance / azimuth measuring device 1 is operated.
[0027]
A command is transmitted to the laser rangefinder 4 of the distance / azimuth measuring apparatus 1 so that “reflection intensity data” is output. When the distance / azimuth measuring device 1 rotates and the laser beam emitted from the laser rangefinder 4 crosses the linear reflector 61 of the measurement markers 6S and 6K, the irradiation starts from the irradiation start point of the laser beam. Until the end point, significantly higher levels of “reflection intensity data” can be obtained compared to a black low reflectance surface.
[0028]
During the period when the laser beam crosses the linear reflector 61 of the measurement markers 6S and 6K, the “reflection intensity data” is at a high level, so this high level start azimuth and end azimuth are detected. When the average azimuth angle that is the center of the two azimuth angles is obtained, it can be considered that the direction is directed to the linear reflector 61.
[0029]
Therefore, when the laser beam emitted from the laser rangefinder 4 is directed to the average azimuth and the output of “distance data” is requested by a command, the “distance data” is output from the laser rangefinder 4. Distance data can be collected in polar coordinates together with a count value (corresponding to azimuth data) obtained by counting pulses output from the encoder 31. The collected data is stored in the RAM 52.
[0030]
Perform the same operation to collect the azimuth and distance data of each corner and corner of the room in polar coordinates, and also collect the required azimuth and distance data in polar coordinates for the linear part of the room. , Convert to two-dimensional coordinates.
[0031]
As a method for regarding that the laser beam emitted from the laser rangefinder 4 is directed to the linear reflector 61, for example, the laser beam crosses the linear reflector 61 and "reflection intensity data" is obtained. During the high level period, pulses generated from the rotary encoder 31 are counted. Then, when the “reflection intensity data” is at a low level, the distance / azimuth measuring device 1 is reversely rotated, and again, during the period when the “reflection intensity data” is at a high level, only half of the previously counted value is counted. Since the center of the laser beam coincides with the linear reflector 61 of the measurement markers 6S and 6K, there is a method of stopping the distance / azimuth measuring device 1 there.
[0032]
When the corner measurement marker 6S is used, distance data is collected during the period when the laser beam crosses the linear reflector 61, and the azimuth angle that outputs the longest distance data is shown as a line. The direction of the reflector 61 can be considered.
[0033]
Similarly, when using the corner measurement marker 6K, the distance data is collected while the laser beam crosses the linear reflector 61, and the azimuth angle that outputs the shortest distance data is obtained. It can be regarded as the direction of the linear reflector 61. Of course, the measurer may visually position in the direction of the linear reflector 61 by remote control operation. Further, since the laser beam spreads, there are various methods for positioning for measurement in a state where the linear reflector 61 is at the center of the beam, and it may be appropriately adopted.
[0034]
The corner measurement marker 6S and the corner measurement marker 6K are used as the measurement markers, but only the corner measurement marker 6S is used, and the linear reflector 61 is placed along the corner of the room. It is also possible to make measurements.
[0035]
(Second Embodiment)
The distance / azimuth measuring device 1 automatically identifies the presence of the installed measurement markers 6S, 6K, and automatically measures the azimuth and distance of the linear reflectors 61 of the measurement markers 6S, 6K. Is.
[0036]
As shown in FIG. 9, a high-reflectivity identifying reflector 62 that is distinguishable from the linear reflector 61 is formed on the surface of the low-reflectance sandwiching the high-reflectance linear reflector 61 of the measurement marker 2. Keep it. As the identifiable high-reflectance reflector 62, for example, a wide, high-reflectance strip-like reflector is suitable.
[0037]
As in the first embodiment, the distance / azimuth measuring device 1 is installed at the center of the room, the corner measurement marker 6S is installed at each corner of the room, and the corner measurement marker is installed at each corner. 6K is installed and the distance / azimuth measuring device 1 is operated.
[0038]
A mode is set in which a command is transmitted to the laser rangefinder 4 of the distance / azimuth measuring apparatus 1 to output “reflection intensity data”. When the distance / azimuth measuring device 1 rotates and the laser beam emitted from the laser rangefinder 4 irradiates the low-reflectance surface 63 of the measurement markers 6S and 6K, it is remarkably smaller than the wall surface of the room. When low-level “reflection intensity data” is generated and the laser beam illuminates the strip-shaped reflector 62 for identification, a high-level “reflection intensity” that lasts longer than the highly reflective linear reflector 61 Data ".
[0039]
In this way, when the output of high-level “reflection intensity data” with a long duration follows the output of low-level “reflection intensity data”, it is recognized that the measurement markers 6S and 6K exist. Therefore, the rotational speed of the distance / azimuth measuring device 1 is lowered to detect the highly reflective linear reflector 61, and the azimuth data and distance data are converted into polar coordinates by the same procedure as in the first embodiment. Can be collected at.
[0040]
As the band-shaped reflector 62 for identifying the high reflectance formed on the measurement markers 6S and 6K, depending on the width of the band-shaped reflector 62 and / or the number of the band-shaped reflectors 62, for the corners of the measurement markers 6S and 6K, It is possible to specify the type for corners and the like. And, by configuring the identification strip-like reflector 62 so as to be detachable with a magnet or the like, the same marker body can be used for the corner or the corner as necessary, so that it can be used. It is not necessary to prepare many markers.
[0041]
(Third embodiment)
All or part of the back surface of the flat plate 63 forming the measurement markers 6S and 6K is an adhesive surface, and this adhesive surface is protected with a release paper so that it can be bent along the highly reflective linear reflector 61. Prepare the composition. Then, the release paper is peeled off, and as shown in the perspective view of FIG. 10, the linear reflector 61 is attached to the corner or corner of the room so that the linear reflector 61 is along the corner ridge or corner valley. Use with attachment. The adhesive surface can be used repeatedly as many times as effective.
[0042]
(Fourth embodiment)
When the distance from the laser distance meter 4 to the measurement markers 6S and 6K is long, the reflected light from the linear reflector 61 received by the laser distance meter 4 becomes weak, and the distance measurement accuracy decreases. Or may become unmeasurable.
[0043]
As a corner measurement marker 6S suitable for long-distance measurement, as shown in FIG. 11 (a), it is a flat plate bent at an acute angle, and has a black low-reflectance two surface 63 on the inside, and a crease portion. And a wide strip reflector 61a having a high reflectivity is provided on one side of the triangular prism body on the inside. In this corner measurement marker 6S, there is an interval D between the surface of the strip-shaped reflector 61a and the corner that abuts on the corner of the room, so an error occurs in the measured distance, but the error is known. It is sufficient to correct from the above.
[0044]
Instead of providing the flat strip-shaped reflector 61 inside the fold portion, as shown in FIG. 11B, the strip-shaped reflector 61b is pasted across two surfaces so as to sandwich the fold portion in the center. Then, distance measurement is performed by the laser distance meter 4 a plurality of times, distance data is collected, and the maximum measurement value is selected.
[0045]
As a corner measurement marker 6K suitable for long distance measurement, as shown in FIG. 12 (a), it is a flat plate bent at an obtuse angle, and has a black low-reflectance two surface 63 on the outer side, A strip-shaped plane is formed by cutting the outer central portion of the substrate, and a wide-band strip reflector 61c having a high reflectivity is provided on the plane. In this corner measurement marker 6K, there is an interval D between the surface of the strip-shaped reflector 61c and the corner that abuts against the corner of the room, so an error occurs in the measured distance, but the error is known. It is sufficient to correct from the above.
[0046]
Instead of providing the flat strip-shaped reflector 61c outside the fold portion, as shown in FIG. 12B, the strip-shaped reflector 61d is pasted across two surfaces so as to sandwich the fold portion in the center. Then, distance measurement is performed a plurality of times by the laser distance meter 4 to collect distance data, and the minimum measurement value is selected.
[0047]
(Fifth embodiment)
In the first to third embodiments, the laser distance meter is operated by selecting the “distance measurement mode” and the “reflection intensity measurement mode”. If the two modes are switched and operated in this way, it takes time for the measurement. In the fifth embodiment, the laser distance meter is operated only in the distance measurement mode to shorten the measurement time.
[0048]
The turntable 3 of the distance / azimuth measuring apparatus 1 is equipped with a laser light source that emits a laser beam of a wide fan-shaped beam in the vertical direction together with the laser distance meter 4. Then, the laser light source is set so that the laser beam emitted from the laser distance meter 4 and the optical axis of the fan-shaped beam coincide with each other.
[0049]
The laser beam of the fan beam has a different wavelength or a different modulation frequency so as not to disturb the operation of the laser distance meter 4.
[0050]
As shown in the perspective view of FIG. 13 (a), the corner measurement marker 7S used in the fifth embodiment is a flat plate bent at an acute angle in the same manner as the corner measurement marker 6S. A black low-reflectivity two-surface 63 is provided, and a high-reflectance linear reflector 61 is provided inside along the crease portion, and a pair of photodiodes 71 adjacent to each other on an extension line of the linear reflector 61 are provided. Is provided.
[0051]
The pair of photo diodes 71 detects a laser beam of a fan beam. When the output levels of the pair of photo diodes 71 are equal, that is, the received fan beam is converted into a pair of photo diodes 71. The received light signal is transmitted to the distance / azimuth measuring device 1 by infrared rays or radio waves at the moment when it is directed to the center of
[0052]
In the distance / azimuth measuring apparatus 1, the azimuth angle at the moment when the received light signal is received is read and stored in the memory as the azimuth angle where the linear reflector 61 exists, and the motor 32 rotates the turntable 3 to obtain the azimuth. After aligning the optical axis of the laser distance meter 4 with the corner, “distance data” output from the laser distance meter 4 is collected and stored.
[0053]
Further, the measurement marker 7 is provided with a pair of photodiodes 72 at positions symmetrical with respect to the linear reflector 61. When the pair of photodiodes 72 receives a fan-shaped laser beam, the pair of photodiodes 72 transmits a received light signal for identification to the distance / azimuth measuring device 1 by infrared rays or radio waves. It is convenient to process the data when the identification received light signal is code-modulated and transmitted with corner measurement, corner measurement, and other information. Of course, the measurement can be performed using only the photo diode 71 without providing the photo diode 72.
[0054]
When the rotating distance / azimuth measuring apparatus 1 receives this identification light reception signal, it can be recognized that the laser beam directing direction is close to the linear reflector 61, so that the rotation speed Is controlled so that the laser beam approaches the linear reflector 61.
[0055]
As shown in the perspective view of FIG. 14, the corner measurement marker 7K used in the fifth embodiment is a flat plate bent at an acute angle like the corner measurement marker 6K, and has a black low outside. A reflective surface having two surfaces 63, a linear reflector 61 having a high reflectance is provided on the inner side along the crease portion, and a pair of adjacent photodiodes 71 is provided on an extension of the linear reflector 61; Further, a pair of photodiodes 72 are provided at positions symmetrical with respect to the linear reflector 61 as in the corner measurement marker 7S.
[0056]
(Other embodiments)
When the protruding length of the corner pillar or the middle pillar protruding into the room is short, it is difficult to provide the corner measurement marker 6S or the corner measurement marker 6K at the corner or corner of the pillar. In such a case, as shown in FIG. 15A, a flat plate 9 having an adhesive back surface is attached to one surface of the protruding portion of the column, and a line segment connecting two points c and d on the flat plate 9 is connected. And the intersection of the extension line of this line segment and the line segment connecting the two points a and b of the sill is defined as a trough line A, and as shown in FIG. A flat plate 9 having a conductive back surface is pasted, a line segment connecting two points e and f on the flat plate 9 is obtained, and an intersection of an extension line of this line segment and a line segment connecting two points g and h of the threshold is obtained. The intersection line between the line segment connecting the two points c and d and the line segment connecting the two points e and f may be the column ridge line.
[0057]
As the measurement marker 8 made of a flat plate used in such a measurement, as shown in FIG. 16, the flat plate is partitioned vertically, and one partition 8A has the entire surface as a high-reflectance plane 66, and the other partition. 8B is a black low-reflectance plane 63, and it is convenient to use a low-reflectance plane 63 provided with a high-reflectance linear reflector 61 in the vertical direction.
[0058]
As shown in FIG. 17A, when measuring a corner column or a middle column having a short protrusion length, the entire surface of the measuring marker 8 uses a high-reflectance plane 66, and FIG. ), When measuring the corner portion of the middle pillar, the high-reflectance linear reflector 61 formed on the low-reflectance plane 63 is used by being attached to match the corner portion.
[0059]
As shown in FIG. 17 (c), the measurement marker 8 can be bent inwardly or outwardly with a highly reflective linear reflector 61 and used as a corner measurement marker or a corner measurement marker.
[0060]
When measuring the dimensions of a room where tatami mats are already laid for the purpose of changing tatami mats, the distance and azimuth measuring device 1 is installed on the tatami mats, and the measurement marker 8 is placed between The measurement marker 8 can be regarded as being directly above the threshold and can be measured. At this time, only the high reflectivity plane 66 may be used. If the error on the distance data due to the thickness of the measurement marker 8 cannot be ignored, the thickness can be calibrated.
[0061]
The technical contents for measuring the distance to the ridgeline at the corner of the room or the valley line at the corner and the azimuth angle have been described above, but it is also possible to measure the linear part of the room.
[0062]
That is, without providing a marker for measurement in the linear portion of the room, the rotating table 3 is rotated and the laser distance meter 4 is continuously operated, while matching the size of the room (for example, in a large room). (2 °, 5 ° for small rooms) Every time it rotates, the distance data output from the laser rangefinder 4 is collected in polar coordinates together with the azimuth data, and the room data collected in these polar coordinates is collected at the corners and corners. What is necessary is just to convert into two-dimensional coordinates with data.
[0063]
Also, in the straight part of the room, measurement markers are provided at the required positions, and distance data and azimuth angle data are collected accurately over all azimuth angles and converted into two-dimensional coordinates in the same way as corners and corners. It may be.
[0064]
As shown in the plan view of FIG. 18, when the projections 5 and 6 such as the middle pillar are present on the wall surface, if the laser distance meter 4 is installed at only one place and measured, the projections 5 and 6 It is not possible to measure the corners 7 and 4 which are shaded by. In such a case, after the laser distance meter 4 is installed at the first location R and measured, the laser distance meter 4 is moved to the second location L where the shadowed corner can be measured and measured again. Then, the dimensions of the room can be obtained by combining the data measured from the two locations. In this case, when measuring at the first location R and the second location L, data can be synthesized by calculation by measuring at least two common measurement points 3 and 8. Further, it is possible to configure the measurement person to input a common point between the measurement data of the first location R and the measurement data of the second location L by manual operation.
[0065]
Further, when measuring the dimensions of a large room or a room having a complicated shape, the laser distance meter 4 may be moved to two or more places to collect data. When collecting each type of data, it is possible to obtain the dimensions of the room by synthesizing all the data by collecting data including the data of the measurement points common to each other.
[0066]
【The invention's effect】
As is apparent from the description based on the above embodiment, according to the room dimension measuring apparatus of the present invention, the measurement marker is placed along the position of the corner ridge line or the corner valley line of the room by aligning the measurement marker. The position of the corner ridge line or the corner valley line can be measured optically simply and accurately. In addition, by forming a band-shaped reflector having a high reflectance for identification, it is possible to recognize a corner or a corner, and automatic measurement can be performed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a distance / azimuth measuring device used in a room dimension measuring device of the present invention;
FIG. 2 is a block diagram of a control circuit used in the apparatus shown in FIG.
FIG. 3 is a perspective view showing a corner measurement marker used in the room dimension measuring apparatus of the present invention;
FIG. 4 is a perspective view showing another embodiment of a corner measurement marker;
FIG. 5 is a perspective view showing a corner measurement marker used in the room dimension measuring apparatus of the present invention;
FIG. 6 is a perspective view showing another embodiment of a corner measurement marker;
FIG. 7 is a perspective view showing another embodiment of the corner measurement marker,
FIG. 8 is a plan view showing a state in which measurement markers are installed at corners and corners of a room;
FIG. 9 is a perspective view showing another embodiment of a measuring marker used in the room dimension measuring apparatus of the present invention;
FIG. 10 is a perspective view showing a use state of another embodiment of a measurement marker used in the room dimension measuring apparatus of the present invention;
FIG. 11 is a plan view showing an embodiment of a corner measurement marker suitable for long distance measurement;
FIG. 12 is a plan view showing an embodiment of a corner measurement marker suitable for long distance measurement;
FIG. 13 is a perspective view showing another embodiment of a corner measurement marker;
FIG. 14 is a perspective view showing another embodiment of the corner measurement marker,
FIG. 15 is a perspective view showing a state in which a corner pillar or a middle pillar having a short protrusion length is measured;
FIG. 16 is a plan view showing another embodiment of the measurement marker;
FIG. 17 is a perspective view showing another state in which a corner column and a middle column having a short protruding length are measured;
FIG. 18 is a plan view showing a method for synthesizing data by moving a distance / azimuth measuring device and performing measurement;
FIG. 19 is a perspective view showing a state in which a laser beam is irradiated to a corner or a corner from a laser distance meter;
FIG. 20 is a plan view showing a state in which corners or corners are measured using a conventional laser distance meter.
[Explanation of symbols]
1 Distance / azimuth measuring device
2 base
3 Turntable
4 Laser distance meter
5 Signal processing circuit
6, 7 Marker for measurement
9 Remote control transmitter
31 Rotary encoder
32 motor
33 Keyboard and other controls
34 Display for displaying input / output data
35 connector
61 Linear reflector with high reflectivity
62 High reflectivity band reflector for identification
63 Low reflectivity plane
64 Holding part
65 Holding member
6S Corner measurement marker
6K corner measurement marker
8 Markers for measurement

Claims (7)

Mounted on the turntable, a rotatable turntable provided on the turntable, a rotary encoder that detects a rotation angle of the turntable with respect to the turntable, a motor that rotates the turntable, and the turntable A distance and azimuth measuring device consisting of a laser distance meter,
Vertical is divided into the measuring markers have a plane of two low reflectance sandwiching the linear reflector and the linear reflector of high reflectivity on one of the compartments, has a plane of high reflectivity in the other compartment And
The laser distance meter is installed while the measurement marker is placed so that the high-reflectance linear reflector is along a corner ridge line or a corner valley line of the room, and the turntable is rotated by the motor. To measure the distance data output from the laser rangefinder together with the azimuth angle data based on the highly reflective linear reflector.   In order to apply to a room where the ridgeline at the corner of the floor and the valley at the corner of the room do not form a right angle, a holding member that holds the measurement marker tilted with respect to the floor is provided. The room dimension measuring apparatus according to claim 1.   2. The room according to claim 1, wherein a band-shaped reflector for identification having a wider width than a linear reflector having a high reflectance is formed on a low reflectance plane of the measurement marker. Dimension measuring device.   4. The structure according to claim 1, wherein all or part of the back surface of the flat plate forming the measurement marker is an adhesive surface and can be bent along a highly reflective linear reflector. The room dimension measuring device according to the above. Mounted on the turntable, a rotatable turntable provided on the turntable, a rotary encoder that detects a rotation angle of the turntable with respect to the turntable, a motor that rotates the turntable, and the turntable A distance / azimuth measuring device comprising: a laser distance meter; and a laser light source that emits a laser beam of a wide fan-shaped beam in the vertical direction that coincides with the optical axis of the laser beam emitted from the laser distance meter;
A high-reflectivity linear reflector, two low-reflectivity planes sandwiching the linear reflector, and a light-sensing element disposed on an extension of the linear reflector, the light-sensing element comprising: When receiving light, equipped with a measurement marker that transmits the received light signal to the distance / azimuth measuring device,
The laser distance meter is installed while the measurement marker is placed so that the high-reflectance linear reflector is along a corner ridge line or a corner valley line of the room, and the turntable is rotated by the motor. And measuring the dimension of the room by operating the laser light source, collecting azimuth angle data based on the received light signal, and collecting distance data based on the highly reflective linear reflector at the azimuth angle apparatus. Mounted on the turntable, a rotatable turntable provided on the turntable, a rotary encoder that detects a rotation angle of the turntable with respect to the turntable, a motor that rotates the turntable, and the turntable A distance and azimuth measuring device is installed in the room, which consists of a laser distance meter and a laser light source that emits a laser beam of a wide fan-shaped beam in the vertical direction aligned with the optical axis of the laser beam emitted from the laser distance meter. And
A high-reflectivity linear reflector, two low-reflectivity planes sandwiching the linear reflector, and a light-sensing element disposed on an extension of the linear reflector, the light-sensing element comprising: When receiving light, install a measurement marker that transmits the received light signal to the distance / azimuth measuring device so that the highly reflective linear reflector follows the ridgeline at the corner or the valley at the corner of the room. The azimuth angle data is collected on the basis of the received light signal by operating the laser distance meter and the laser light source while rotating the turntable by the motor, and the highly reflective linear reflector at the azimuth angle. Collecting distance data based on the room dimension measurement method Install laser rangefinders at different locations, collect azimuth angle data and distance data, including two or more common measurement points, and synthesize the data collected at each location. The room dimension measuring method according to claim 6 , wherein:

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