JP6475223B2 - Wall surface measuring method and wall surface measuring apparatus - Google Patents

Description

  The present invention relates to a wall surface measuring method and a wall surface measuring apparatus for measuring a dimension of an inner wall of a building or the like.

  Prior to making interior changes such as renovation, the wall dimensions of the room are measured. That is, the measurement of the wall surface dimensions is a preliminary preparation for preparing materials, and is an operation required at the stage of estimation before construction. Usually, the client often obtains a phase estimate from multiple vendors, and even if such work takes a lot of time, it is not always officially requested for work. It is important for business efficiency to be completed in a short time. However, if it is not accurately estimated, it may result in a deficit, so there is a potential for serious damage if too much attention is paid to ending up in a short period of time and improving operating efficiency. In general, the size and amount of wallpaper, the size and number of building materials, etc. are used as the basis for material costs, and the number of man-hours (personnel costs) required for the work is determined based on the material costs. Is.

Therefore, in the past, a device that measures the wall surface dimensions of a room using a laser distance meter was proposed and proposed based on the conventional working form in which several workers jointly measured dimensions using a measure. It has been implemented. The appearance of this laser rangefinder has recently gained wide acceptance as a revolutionary device for remodelers because it can perform dimension measurement alone.
The measurement method using a laser rangefinder widely sold as such a general-purpose product is such that when a laser is irradiated from the laser rangefinder, the distance between the spot position and the rear part of the laser rangefinder is provided in the laser rangefinder. Measurement is possible by displaying on the display.
And when measuring the indoor dimension with such a laser distance meter, the following operations are repeated many times. For example, low-priced products such as BOSCH GLM7000 (product number) are recently being put on the market.
Further, a wall surface dimension measuring method using a laser distance meter such as Japanese Patent No. 4304270 (Patent Document 1) is known. In this publication, a laser beam from a laser distance meter is spot-irradiated in advance by a manual operation at a plurality of positions necessary for dimension measurement, and settings are input. Thereafter, the laser distance meter irradiates the measurement position with laser, and the distance and coordinates are obtained for each measurement position with the laser distance meter as the origin. Further, the distance between the two measurement positions is obtained by a trigonometric function based on the coordinates of the two measurement positions that are the starting and ending points of the dimension to be obtained and the distance to each measurement position.

Japanese Patent No. 4304270

For example, there are a plurality of corner portions including a bulging portion protruding from a wall surface such as a pillar, a door frame, and a window frame, and a corner of a room. Therefore, the conventional wall surface measuring apparatus needs to be manually set and input using the corners as the starting point and starting point of the measurement position, and the work efficiency is complicated. Furthermore, since there are many places where settings are input, there is a risk that measurement errors may occur due to omission of setting inputs.
In particular, in the case of a renovation contractor, unlike a new construction, there are tables, desks and furniture that are fixed to the wall of the room by construction if there is no accurate internal drawing. In the case of different reforms, the measurement can be very difficult.

The present invention has been made in view of the above-mentioned problems, and provides a wall surface measuring method and a wall surface measuring apparatus capable of efficiently measuring the inner wall dimensions of a building and measuring the dimensions with high accuracy. The main purpose is to do.
In addition, the objective of this invention, the subject, and an effect (benefit) are understood from description of a claim itself, and should not be unfairly interpreted by the following description.

  The present invention provides the following wall surface measuring method.

The wall surface measuring method according to one embodiment of the present invention has the following configuration.
That is, a wall surface measuring method for measuring the dimensions of the inner wall,
A) A measurement process of irradiating the surface to be measured while rotating the laser distance meter around the support shaft and measuring the distance from the laser distance meter to the measurement position irradiated with the laser;
B) A rotation angle for detecting a rotation angle obtained by rotating the laser distance meter from the previous measurement position (measurement position = laser irradiation position) measured in the measurement process to the measurement position at the time of the current measurement. The detection process;
C) A process of obtaining a distance for each measurement position from the two measurement distances acquired in the previous and current measurement processes and the rotation angle detected in the rotation angle detection process and storing them in a storage unit;
From the distance obtained in the measurement process of (A) and the rotation angle obtained in the rotation angle detection process of (B), the process of storing between the measurement positions of (C) is executed continuously several times. A data generation process for generating a group of data for obtaining the dimensions of the wall;
It is provided with.

According to this method, it is possible to generate data that can determine the dimensions of the entire circumference of the inner wall, which is the surface to be measured, by at least one measurement. (In the case of a cube-shaped room, there is a possibility that it can be measured by a single measurement, but of course, several rotations may be performed for verification. If the bulging wall is formed above a certain height, it may be necessary to measure several revolutions.) That is, while the laser rangefinder is rotated at least once around the spindle To irradiate the surface to be measured intermittently with laser, acquire data of measurement distance for each measurement position and rotation angle for each measurement position, and use trigonometric function based on this acquired data Thus, the distance between the measurement positions adjacent from the measurement distance and the rotation angle is calculated by the control unit (electric circuit 6) including the CPU. This calculated data is the distance between the previous laser irradiation position point and the current laser irradiation position point as an image, and then the current laser irradiation position point and the next laser irradiation position point. It becomes a distance, and this is stored in association with the rotation angle between points as needed. Finally, in the data generation process of (C), all the points (laser irradiation positions) are mutually connected as a series of continuous data. The aggregate of the intervals is calculated as the wall surface dimension.
Therefore, according to this method, it is not necessary to determine the measurement range of the inner wall in advance by taking into account the position of the corner, and to set and input the measurement range by an operator's manual operation, as in the past. Can be performed efficiently. In addition, since setting for measuring only a specific position while avoiding the corner portion is not required, it is possible to avoid occurrence of a measurement error due to a setting input error.

  In the above method, when the measurement distance from the laser distance meter to the measurement position is compared for each adjacent measurement position, and the change amount deviates from a predetermined change amount, the measurement position by the previous laser is It is preferable to change the measurement interval of the laser whose angle is rotated to the measurement position at the time of measurement. In the embodiment described later, it is described that the surface to be measured is intermittently irradiated with a laser and the distance from the laser distance meter to the measurement position irradiated with the laser is measured each time. It is not limited, What is necessary is just to comprise so that a measurement point may be measured intermittently, irradiating a laser continuously. In short, it is not important in the present invention that the laser is irradiated intermittently, and it is important to measure each time the measurement is rotated by a predetermined rotation angle. The shorter the measurement interval, the more accurately the small bulge site can be measured. The reason will be explained in more detail. As a result of comparison between adjacent measurement positions (previous measurement position and current measurement position), the increase rate of the distance is the same as the increase rate between the previous adjacent measurement positions. If the rate of increase does not reach, it can be determined that there is unevenness on the wall, and in this case, by increasing the measurement interval (rotation angle amount) between adjacent measurement positions, Thus, it becomes possible to obtain more accurate unevenness amount and unevenness starting point as data.

  Again, the distance from the laser rangefinder to the measurement position increases or decreases at a constant rate when the wall surface is flat. However, when the change amount (for example, inclination) of the measurement distance deviates from the predetermined change amount, it means that the wall surface is not flat. That is, since there is a high possibility that such a portion is a corner portion, if the measurement is performed at the same interval (wider) as the measurement interval for measuring a flat surface, the dimension of the corner portion cannot be accurately determined. Therefore, according to this method, for example, by making the measurement interval shorter than the initial setting, it becomes possible to irradiate the corner face or the curved surface multiple times. Therefore, it is possible to accurately determine the shape, and thus it is possible to accurately extract only the dimension of the target wall surface.

  In the above method, when the change amount of the measurement distance deviates from the predetermined change amount, it is preferable to perform the following complement processing.

  For example, when it is detected that the change amount deviates from a predetermined change amount, the laser distance meter is reversely rotated and returned to a predetermined position, and then the measurement interval is shortened and the measurement is performed again while rotating forward. .

  Alternatively, when it is detected that the amount of change deviates from the predetermined amount of change, the measurement interval is shortened and the measurement is performed again while rotating backward to a predetermined distance.

  According to this method, the measurement interval is shortened at a part that is not flat, such as a corner, and the distance is remeasured multiple times, and the data for plotting the part that cannot be measured at the first measurement is complemented. Therefore, the corner portion can be determined with high accuracy, and only the intended inner wall surface dimension can be extracted with high accuracy.

  Further, in the above method, when it is detected that the amount of change deviates from a predetermined amount of change, between the measurement position at the measurement time point and the previous measurement position, until the position where the distance is maximum is obtained, It is preferable to perform remeasurement multiple times while changing the measurement interval.

  When a corner portion is included between the measurement position at the time of measurement and the previous measurement position, the measurement distance to the position that is the starting point of the corner portion is the maximum. Therefore, according to this method, since the position where the measurement distance is maximum is obtained, the starting point of the corner portion can be specified, and the shape can be specified by obtaining from the part to the end point. it can.

  Further, in the above method, a plurality of laser measuring meters are provided in a space surrounded by the measured surface, and the laser measuring device is intermittently irradiated with the laser while rotating each laser distance meter once. The distance between the measurement positions is obtained from the distance and the rotation angle acquired for each distance meter, and the distance between the measurement positions obtained for each laser distance meter is collectively stored in the storage unit as a group of data for plotting. May be.

  According to this method, for example, a plurality of laser rangefinders are arranged in a room with a large number of blind spots such as buildings and condominiums in which a plurality of pillars are bulged, and the surface to be measured is measured by each laser rangefinder. By measuring this distance, a blind spot portion where a distance cannot be measured with a certain laser distance meter can be measured with another laser distance meter. Therefore, the distance between the measurement positions obtained from the measurement data obtained by each laser rangefinder is stored together, and the data for each of these multiple units is read out and synthesized, so that even in a room with many blind spots, each laser distance The wall surface dimensions can be obtained efficiently and accurately by a single measurement with a meter.

  The present invention also discloses the following configuration in addition to the above configuration.

A wall surface measuring device for measuring the dimensions of an inner wall,
A laser is irradiated toward the surface to be measured, and the direction of the laser irradiation is rotatably supported with respect to the floor surface connected to the inner wall, and the distance between the center of rotation and the surface to be measured is measured. A laser rangefinder to
A storage unit for storing a distance measured by the laser distance meter;
A drive mechanism for rotating the laser distance meter substantially parallel to the floor surface;
A control unit that executes the following processing,
While intermittently measuring the distance to the predetermined measurement position of the surface to be measured while rotating the laser distance meter around the support shaft by the drive mechanism,
Obtain the rotation angle of the laser distance meter that has rotated from the previous measurement position to the measurement position at the time of the current measurement,
Obtain the distance for each measurement position from the acquired measurement distance and the rotation angle, generate a group of data for plotting the wall length, and store the data in the storage unit,
It is characterized by that.

  According to this configuration, while the rotation of the drive mechanism is controlled by the control unit and the laser distance meter is rotated once around the support shaft, the laser is intermittently irradiated to the entire circumference of the surface to be measured, and the distance for each measurement position. And a rotation angle between adjacent measurement positions measured intermittently is obtained. In addition, the control unit can obtain the distance between the measurement positions based on, for example, a trigonometric function based on each distance and rotation angle for each adjacent measurement position. In other words, since the control unit acquires the distance between the measurement positions along the entire circumference of the measurement target surface, the control unit generates a plurality of dimensions divided into a plurality of data that can plot the entire circumference of the measurement target surface. It is stored in the storage unit. Therefore, it is possible to obtain the dimensions of the surface to be measured in an arbitrary range using the data acquired by one measurement.

In the above configuration, the control unit further compares the amount of change in the distance between measurement positions, determines whether or not the amount of change deviates from a predetermined amount of change,
As a result of the determination, if the amount of change deviates from the predetermined amount of change, the drive mechanism is rotated in the reverse direction to return the laser distance meter to a predetermined position, and after changing the measurement interval, it is configured to rotate forward and remeasure. It is preferable.

  According to this configuration, when the amount of change deviates from the predetermined amount, the control unit determines a non-flat portion as a corner portion, and remeasures the corner portion, for example, at an interval shorter than the previous measurement interval. Thus, the data can be complemented and the size and shape of the corner can be specified.

Further, in the above configuration, a display device that reads the data stored in the storage unit and continuously displays the data by connecting the lengths obtained by dividing the entire circumference of the wall surface;
It is preferable to include an arithmetic processing unit that calculates a dimension in a specified range from a length continuously displayed on the display device.

  According to this configuration, the plotting data acquired by the control unit is used, the lengths obtained by dividing the entire circumference of the wall surface are connected and continuously displayed on the display device, and the range can be arbitrarily set from the continuously displayed length. The target dimension can be determined with high accuracy.

  According to the wall surface measuring method and the wall surface measuring apparatus according to the present invention, it is possible to efficiently measure the indoor dimensions of a building and accurately measure the target dimensions.

It is a perspective view which shows the whole structure of a wall surface measuring apparatus. It is a perspective view which shows the apparatus main body and rotating body of a wall surface measuring apparatus. It is a block diagram which shows the electric circuit of a wall surface measuring apparatus. It is a figure which shows the measurement operation | movement in a wall surface measuring apparatus. It is a schematic diagram which shows the method of calculating | requiring the distance between measurement positions. It is a figure which shows the data for a plot acquired from the measurement result and the said result. It is a figure which shows the variation | change_quantity of the distance between measurement positions. It is a schematic diagram which shows the method of measuring again the area | region where the variation | change_quantity changed. It is a figure which shows the measuring method of a modification. It is a figure which shows the measuring method of a modification. It is a perspective view which shows the wall surface measuring apparatus of a modification. It is a figure which shows the measuring method by the wall surface measuring apparatus of a modification. It is a perspective view which shows the whole structure of the wall surface measuring apparatus of a modification. It is sectional drawing which shows the structure of the wall surface measuring apparatus of a modification. It is a block diagram which shows the electric circuit in the wall surface measuring apparatus of a modification. It is a flowchart which shows the measurement process sequence in the wall surface measuring apparatus of a modification. It is a figure which shows the measuring method by the wall surface measuring apparatus of a modification. It is a figure which shows the measuring method by the wall surface measuring apparatus of a modification. It is a block diagram which shows the electric circuit in the wall surface measuring apparatus of a modification. It is a perspective view which shows the apparatus main body and rotation body in the wall surface measuring apparatus of a modification.

  As shown in FIGS. 1 and 2, the wall surface measuring apparatus 1 includes an apparatus main body 2 and a rotating body 3. The apparatus main body 2 is supported horizontally on the tripod 4.

  The apparatus main body 2 includes a first motor 5 (for example, a pulse motor) shown in FIG. 3 and a battery (secondary battery) as an internal power source for driving the first motor 5. The rotating shaft of the first motor 5 is connected to the rotating body 3. Therefore, as shown in FIG. 2, the rotating body 3 is configured to rotate around the rotation axis Z by driving the first motor 5. In addition, although the battery is incorporated in the apparatus main body 2, the first motor 5 is configured to be able to be driven by external power supply using an AC adapter.

  Further, as shown in FIG. 3, the apparatus main body 2 includes a control electric circuit 6 (control unit). The electric circuit 6 receives distance data output from a CPU 7 that controls the entire apparatus 2, a ROM 8 that stores processing programs, a RAM 9 that temporarily stores data, and a laser distance meter 10 described later, or an external circuit The communication unit 12 is configured to transmit and receive data appropriately to a personal computer 11 (hereinafter referred to as “PC 11”), etc. The communication between the communication unit 12 and the PC 11 is a wired LAN. The CPU 7 corresponds to the control unit of the present invention, the RAM 9 corresponds to the storage unit of the present invention, and the PC 11 includes the display device and arithmetic processing of the present invention. It corresponds to a device.

  The rotating body 3 includes a pair of left and right support bodies 13 erected from a columnar bottom. The laser rangefinder 10 is supported between the support 13 from the left and right by the rotation axis and the free axis of the second motor 14 shown in FIG. 4 and is rotatable about the horizontal axis Y.

  The laser distance meter 10 calculates and outputs a measurement distance based on the intensity of reflected light of the laser irradiated to the object to be measured. As the laser distance meter 10, for example, various types such as “Leica 3D Disto” manufactured by Leica Systems and a laser distance meter of Bosch stock can be used.

  Accordingly, the rotating body 3 rotates the laser distance meter 6 around the horizontal axis Y and stops it, irradiates the surface to be measured with an arbitrary angle, and sets the laser distance meter 6 as the origin (with the rotation center as the origin). The distance to the measurement position on the surface to be measured can be measured. That is, as a result of fixing the laser distance meter 6 to the rotating body 3, the laser distance meter 6 is rotatably supported with respect to the tripod 4 which is a floor to be installed or a fixed base installed on the floor.

<Measurement process 1>
Next, a series of processes for measuring the inner wall of the room by the wall surface measuring apparatus 1 will be described with reference to the drawings.

  As shown in FIG. 4, a tripod 4 is installed in the approximate center of the room, and the wall surface measuring device 1 is attached to the tripod 4. When the power button is pressed, the function of the level provided in the apparatus main body 2 is activated, and the apparatus main body 2 is set horizontally according to the level. The level is adjusted to a certain extent only with the apparatus main body 2, and then the leg portion of the tripod 4 is expanded and contracted to finely adjust the height of the tripod 4.

  Next, communication connection between the PC 11 and the apparatus main body 1 is performed. When the connection is completed, the measurement interval is set from the PC 11. Thereafter, the laser W is irradiated to the wall surface W from the laser distance meter 10 to set the height of the measurement start position. When these initial settings are completed, the PC 11 or the wall surface measuring device 1 is operated to start measurement.

  With this starting operation, the rotating body 3 starts to rotate 360 degrees clockwise on the apparatus main body 2. During this rotation, the laser is intermittently applied to the wall surface W from the laser distance meter 10 at a preset interval, and the measurement distances from the measurement positions X1 to Xn are stored in the RAM 9. Further, when the laser distance meter 10 rotates so that the laser is irradiated from the measurement start position X1 to the next measurement position X2, the CPU 7 counts the number of pulses when the first motor 5 is driven, and the measurement distance and the number of pulses are Stored in the RAM 9.

When the measurement is performed for the second time and thereafter, the CPU 7 starts generating data for plotting. For example, as shown in FIG. 5, the laser rangefinder 10 to the origin position A, the wall surface W 1 previous measurement position X1 and measuring the current position of X2 irradiated with laser to the bottom surface, previous measurement distance L1 and the current The distance d1 between the measurement positions is obtained from the angle θ1 sandwiched by the measurement distance L2. The angle θ1 can be obtained from the number of pulses of the first motor 5. That is, the angle θ1 coincides with the set rotation angle of the first motor 5, and therefore is always kept constant in the present embodiment. The angle θ1 may be configured such that the rotation angle of the rotating body 3 is detected by a detector such as a rotary encoder.

The measurement distances L1 and L2 and the rotation angle θ1 to d1 acquired as described above can be obtained by d1 ² = L1 ² + L2 ² −2L1L2 cos θ2 using a trigonometric function.

  When obtaining the distance d1 between the measurement positions, the CPU 7 obtains the distance between each measurement position (between two points) while rotating the laser distance meter 10 360 degrees as shown in FIG. The data is sequentially stored in the RAM 9 while being generated as a group of data. After the measurement is completed, the CPU 7 transmits the data stored in the RAM 9 to the PC 11 and ends the series of processes.

  According to this structure, the length of the perimeter of the inner wall surfaces W1-W4 of a room can be calculated | required by one measurement. That is, the laser can be intermittently applied to the wall surfaces W1 to W4 while the laser distance meter 10 is rotated once, and the measurement distance for each acquired measurement position and the rotation angle for each adjacent measurement position can be obtained. Using the trigonometric function, the distance between the adjacent measurement positions can be obtained from the measurement distance and the rotation angle for each of the adjacent measurement positions. In other words, the distances d1, d2,... Between the measurement positions are generated as a group of data for plotting in which the length of the entire circumference of the wall surfaces W1 to W4 is divided into a plurality. Therefore, by plotting and displaying a group of data on the PC 11 and specifying the range, the dimensions of an arbitrary range can be obtained, so that the measurement range can be set and input in detail by manual operation of the operator as in the past. Therefore, it is possible to perform the measurement work efficiently. Further, since it is not necessary to measure only the target measurement position while avoiding the corners, it is possible to eliminate measurement errors. Needless to say, the measurement start position and end position are not limited to the corner portions as in the prior art, and can be set to arbitrary positions such as flat positions on the wall surface.

<Measurement process 2>
In the process of measuring the inner wall of the room at 360 degrees, there are mere corners or corners such as the pillars 21 to 24 shown in FIG. In the present embodiment, a mode in which this corner portion is determined and measured with high accuracy will be described.

  While measuring the flat wall surface shown in FIG. 4, as shown in FIG. 7, each of the measurement distances L <b> 1 to L <b> 7 increases at a constant rate to the measurement positions X <b> 1 to X <b> 7, and between the measurement positions indicating the amount of change. It can be seen that the inclination is constant. However, at the measurement position X8 of the corner portion 21, the distance L8 is shorter than the distance L7, and the inclination indicating the amount of change changes obliquely downward.

  The CPU 7 monitors the amount of change for each measurement, and at the measurement time when the amount of change is no longer constant, the CPU 7 reversely rotates the rotating body 3 to the final measurement position X7 where the amount of change is constant.

  The CPU 7 changes the measurement interval to be shorter than the current measurement interval. That is, the number of pulses of the first motor 5 is adjusted, and the laser distance meter 10 is changed to rotate at a minute angle.

  Thereafter, the rotating body 3 is rotated forward and remeasurement is started by the laser distance meter 10 from the measurement position X7. That is, as shown in FIG. 8, the measurement is repeated in the order of measurement positions ΔX71 to ΔX74 at minute intervals. CPU7 memorize | stores the measured value in RAM9 as a value which complements between the measurement positions X7 to X8 which detected the last variation | change_quantity.

  The CPU 7 monitors the amount of change during the remeasurement. For example, as shown in FIG. 4, since the measurement positions X8 to X10 include corners, the CPU 7 measures at a minute interval during this period, and when the amount of change returns to a constant at the measurement positions X10 to X11, the measurement interval Return to the initial setting and continue measurement. Thereafter, when the laser beam is irradiated perpendicularly to each of the wall surfaces W1 to W4 (measurement position X14 in FIG. 4), the amount of change increases or decreases from that point, but changes unlike the corner portions 21 to 24. Since the amount is constant, the measurement interval remains at the initial setting.

  Thereafter, the CPU 7 returns the rotating body 3 to a predetermined position every time the corner portion is determined, changes the measurement interval, remeasures, and repeats the measurement while returning the measurement interval to the initial setting when the change amount becomes constant, The inner wall of the room is measured over 360 degrees, a group of data for plotting is transmitted to the PC 11, and the series of processes is completed.

  In this measurement process 2, when the amount of change changes, the laser distance meter 10 is returned to the previous measurement position X7 and remeasurement is performed once. However, remeasurement is performed between the measurement positions X7 and X8. May be performed multiple times. At this time, the position where the measured distance becomes maximum is obtained by changing the measurement interval for each re-measurement.

  According to this configuration, since the CPU 7 determines that the region where the change amount between the measurement positions is changed is a non-flat corner, the CPU 7 returns the rotating body 3 to the measurement position before the change amount is changed. Since the measurement interval is changed short and the portion is measured again by the laser distance meter 10, the size and shape of the corner portion can be accurately determined. In particular, the origin of the corner can be specified by changing the measurement interval for each remeasurement performed several times between the measurement positions X7 and X8 to obtain the position where the measurement distance is maximized. The shape and size can be determined with higher accuracy. As a result, it is possible to accurately extract only flat wall surfaces excluding the corners.

  In addition, this invention is not limited to the said embodiment, The following structures may be sufficient.

  (1) In the above-described embodiment, the measurement is performed over the entire circumference of the wall surface of one rectangular room using the single wall surface measuring device 1. Depending on the position of the corner, a plurality of wall surface measuring devices 1 may be installed for each room and measured individually.

  Alternatively, as shown in FIG. 9, two tripods 4 are installed in each of the two rooms, and a linear guide 20 is installed so as to straddle between the tripods 4. You may comprise so that the wall surface measuring apparatus 1 may be mounted | worn and moved, and it measures for every room.

  In both the case where the plurality of wall surface measuring devices 1 are used and the configuration in which one wall surface measuring device 1 is moved, each of the plot data measured and acquired for each room is transmitted to the PC 11. The PC 11 is configured to synthesize data for two rooms. That is, the plotting data for the wall surfaces W1 to W3 measured at the measurement origin A and the plotting data for the wall surfaces W4 to W6 measured at the measurement origin B shown in FIG. Minute data is stored together.

  According to this configuration, for a group of plots that are the basis of the dimensional data for the entire circumference of each wall surface, such as a room with an irregular layout that is not square or rectangular, a room where a blind spot is caused by a pillar, or a large room such as a hall The data for the plot of the entire circumference of the room can be generated with high accuracy by extracting the necessary data from the plurality of groups of data and combining them.

  (2) In the above embodiment, the measurement data acquired by the wall surface measurement device 1 is transmitted to the PC 11 by communication. However, the measurement data of the wall surface measurement device 1 can be recorded on a memory medium such as a USB memory and can be taken out. Also good.

  (3) In the above embodiment, the angle of the laser rangefinder 10 is fixed and rotated horizontally once. However, as shown in FIG. The laser distance meter 10 may be horizontally rotated at the positions of heights H1 to H4 in the height direction of the wall surface, and measurement may be performed a plurality of times. Alternatively, the laser distance meter 10 may be sequentially changed at a minute angle, and the entire circumference of the wall surface may be measured a plurality of times while spirally irradiating the wall surface with the laser.

  According to this configuration, data for plotting at different positions on the wall surface is acquired, so that two-dimensional data in the horizontal direction and the height direction can be acquired. Therefore, it is possible to obtain an area in a predetermined range from the width dimension and height dimension of the wallpaper according to the wall surface.

  (4) In the above embodiment, a room whose wall surface is perpendicular to the floor has been described as an example. However, the present invention is also applicable to measurement of a wall surface of a room where the ceiling is smaller than the floor and the wall surface is inclined. can do. In the case of such a room, the floor plan or layout diagram is created based on the floor surface, so it is necessary to measure the distance to the wall surface as close as possible to the floor surface. Further, since the wall surface is inclined, if the laser distance meter 10 is not rotated 360 degrees while maintaining a high level, the measurement distance error becomes larger than when measuring a vertical wall surface. Therefore, when the wall surface is inclined as described above, for example, the following embodiment is preferable.

  As shown in FIG. 11, the wall surface measuring device 1 is mounted on the support base of the low-profile tripod 4. Thereafter, the power of the apparatus main body 2 is turned on, and the approximate levelness is automatically adjusted by the level function of the apparatus main body 2. Further, while the wall surface measuring device 1 is rotated 360 degrees by turning the tip portion 4B screwed into the screw on the tip side of the leg portion 4A made of a short axis while visually observing the level of the circular bubble tube, it is horizontal. Make fine adjustments.

  Alternatively, the wall surface measuring device 1 is mounted on a tripod part of a laser marking device (model number GZAN-KYR) designed by TJM Co., Ltd., and the level is adjusted by the automatic level function of the tripod part and further screwed into the leg part. The tip may be turned to finely adjust the height.

  According to this configuration, the wall surface measuring apparatus 1 that maintains the level of accuracy near the floor surface irradiates the laser to a floor line that is substantially parallel to the floor surface and that is as close as possible to the floor line that intersects the wall surface and the floor surface. Therefore, even with an inclined wall surface, it is possible to accurately acquire dimensional data that matches the floor plan.

  In addition, when it is desired to irradiate the laser with a wall surface height as close as possible to the floor surface in parallel with the floor surface, for example, the following may be performed. The laser rangefinder 10 is separated from the rotating body 3 and attached to the tip of the robot arm, and the laser rangefinder 10 is lowered to a position close to the floor surface by the robot arm. In this state, the distance may be measured by the laser rangefinder 10 while rotating the robot arm about the vertical axis. The measurement result may be transmitted from the laser distance meter 10 to the apparatus main body 2 by radio.

  (5) In the above embodiment, if the position for determining the width dimension and the position for determining the height are set from the plotting data transferred from the wall surface measuring device 1 to the PC 11, the PC 11 measures in the horizontal direction and the height direction. The distance between the positions is calculated, the area between the installation positions is calculated from the distance, and the wallpaper of a standard product having a size that can cover the area is connected to the PC 11 in advance through a database or network. You may comprise so that it may extract from the database memorize | stored in the server.

  (6) In the configuration shown in FIG. 10, the case where measurement is performed at different height positions on the wall surface by changing the vertical angle of the laser irradiated from the laser rangefinder 10 has been described. Instead of changing the vertical angle of the laser distance meter 10 (FIG. 10), for example, as shown in FIG. 12, the height of the laser distance meter 110 is changed at predetermined intervals, and each height H1, The wall distance may be measured by rotating the laser distance meter 110 horizontally with H2, H3,.

  Specifically, as shown in FIG. 13, in the wall surface measuring apparatus 100, a columnar column 102 is fixed to the upper surface of a flat plate base 101, and a laser rangefinder 110 is supported on the column 102. The main body 112 is supported so as to be movable up and down.

  The main body 112 is supported on a cylindrical stator 121 that is slidably supported in the longitudinal direction (vertical direction indicated by an arrow a) of the support column 102 along the peripheral side surface of the support column 102, and the outer peripheral surface of the stator 121. And a rotor 151 supported rotatably in the direction of arrow b in the horizontal plane via bearings 122A and 122B (FIG. 14).

  A laser distance meter 110 is mounted on the rotor 151 and irradiates the laser in the horizontal direction from the outer peripheral surface of the rotor 151 to the wall surface. The laser distance meter 110 calculates and outputs a measurement distance based on the intensity of the reflected light of the laser irradiated on the object to be measured (wall surface) in the same manner as the laser distance meter 10 used in the above embodiment. .

  A drive mechanism of the main body 112 will be described. In FIG. 13, the stator 121 of the main body 112 has a cylindrical shape with a central portion penetrating in the vertical direction, and the support column 102 is inserted into the penetrating portion 121 </ b> A. Since the inner diameter of the stator 121 is slightly larger than the outer diameter of the support column 102, the stator 121 can slide in the longitudinal direction with respect to the peripheral side surface of the support column 102.

  A rack gear 102A is provided in the longitudinal direction on the peripheral side surface of the support column 102, and an elevating pinion gear 131 provided on the stator 121 is engaged with the rack gear 102A. The pinion gear 131 is rotated by an elevating motor 132 mounted on the stator 121, so that the stator 121 can be raised and lowered according to the rotation direction of the elevating motor 132. A pulse motor (stepping motor) or the like is used as the lifting motor 132.

  As shown in FIG. 14, a stator magnetic pole 123 made of, for example, a laminated silicon steel plate is fixed to the outer peripheral surface of the stator 121, and a stator winding 124 having a predetermined number of poles is wound around the stator magnetic pole 123. It has been turned. The stator winding 124 is connected to a driver circuit 165A (FIG. 15) of a substrate 125 provided on the stator 121 via a pin 127. The driver circuit is connected to an electric circuit 166 (FIG. 15) provided on the substrate 125. The electric circuit 166 is connected to an external computer (PC 11 (FIG. 15)) via the communication unit 12 (FIG. 15). The power supply line to the electric circuit 166 and the pulse motor and the like is configured to be drawn into the substrate 125 from below the stator 121 through the through hole 128 provided in the stator 121, so that the power supply line is a laser distance. It is possible to avoid blocking the laser beam path of the total 110. Incidentally, as a power supply method, for example, a battery may be mounted on the stator 121 instead of the method of connecting the power supply line.

  On the other hand, the rotor 151 has a cylindrical rotor housing 152 having a through-hole 152A at the center of the top surface and an opening at the bottom, and the bottom opening of the rotor housing 152 is a circle having a through-hole 153A at the center. It is closed by a plate-shaped bottom plate 153.

  A rotor yoke 155 is provided on the inner peripheral surface of the rotor housing 152, and an annular rotor magnet 156 is provided on the inner peripheral surface of the rotor yoke 155. The rotor magnet 156 is magnetized in different directions alternately in the circumferential direction, and a uniform air gap is provided between the stator magnetic pole teeth of the stator magnetic pole 123 (not shown).

  Thus, the rotor magnet 156 constitutes a cylindrical pulse motor (stepping motor) having a stator on the inside. The driver circuit 165A (FIG. 15) of the substrate 125 can rotate the rotor 151 by causing current to flow sequentially to each pole of the stator winding 124 at a predetermined timing.

  A part of the rotor yoke 155 is provided with a notch (not shown), and a magnetic flux leaking from the notch is detected by a magnetic flux detector (not shown) provided at a predetermined rotational position. The rotational position of the rotor 151 (rotor magnet 156) can be determined.

  In PC 11 (FIG. 15), a pulse motor is driven through a driver circuit by transmitting a control signal to an electric circuit 166 on a substrate 125 through a connector 126, and a rotor 151 on which a laser distance meter 110 is mounted is driven. Can be rotated. Thus, the pulse motor that rotates the rotor 151 constitutes a measurement motor 160 that rotates the laser distance meter 110 in a horizontal plane.

  As described above, the wall surface measuring apparatus 100 according to the present embodiment includes the stator 121 that can move up and down along the support column 102 and the rotor 151 that is supported by the stator 121 so as to be rotatable around the stator 121. By providing the laser distance meter 110 in 151, a part of the mechanism for supporting, moving up and down and rotating the laser distance meter 110 with respect to the laser irradiated to the wall surface from the laser distance meter 110 blocks the laser light path. Can be avoided.

  In addition, a drive mechanism (such as a lifting motor 132) for moving the laser distance meter 110 up and down is mounted on the stator 121, and these mechanism portions move up and down together with the stator 121. There is no need to dispose these drive mechanisms, and in the configuration in which the laser distance meter 110 can be moved up and down, measurement can be started from a position where the height from the floor surface is much lower.

  FIG. 15 is a diagram showing a control electric circuit 166 (control unit) provided in the stator 121 of the wall surface measuring apparatus 100. The electric circuit 166 is provided on the substrate 125 (FIG. 14) of the stator 121. In FIG. 15, the same reference numerals are given to corresponding parts to those in FIG. 3, and a duplicate description is omitted.

  The communication unit 12 can transmit and receive data to and from the PC 11 by wire or wireless. When transmitting and receiving data by wire, the wiring can be drawn from the substrate 125 on the upper surface of the stator 121 to the lower side of the stator 121 through the through hole 128 (FIG. 14) of the stator 121. The communication unit 12 is configured to transmit a measurement control signal to the laser distance meter 110 and to receive a measurement result in the laser distance meter 110. Incidentally, since the electric circuit 166 is provided on the stator 121 side and the laser distance meter 110 is provided on the rotor 151 side, means (not shown) such as a slip ring is used to exchange signals between them. It is done.

In the above configuration, a measurement process for measuring the wall surface distance will be described.
As described above in FIG. 14, the wall surface measuring apparatus 100 is connected to the PC 11 via the communication unit 12, and the wall surface measuring apparatus 100 can be operated by the PC 11.

  As shown in FIG. 16, the CPU 7 (FIG. 15) that has received the control information from the PC 11 moves the main body 112 (FIG. 13) of the wall surface measuring device 100 to the lowest position (first height H <b> 1 (FIG. 15)). 12) With the state lowered to 12) as an initial position, the distance to the surrounding wall surface is measured while rotating the rotor 151 over one turn, whereby the height H1 (the lowest position) shown in FIG. The lowest height H1 is determined by the configuration of the main body 112 in the wall surface measuring apparatus 100. In the present embodiment, the laser distance meter 110 is mounted. By adopting a configuration in which a driving mechanism such as a motor or a substrate is not disposed below the rotor 151, the rotor 151 can be further lowered.

  In addition, as a measuring method of the wall surface by the laser distance meter 110, the method mentioned above about FIGS. 4-8 can be used. That is, the wall surface measuring apparatus 100 measures the distance (wall surface distance) to the wall surface at each angle while rotating the rotor 151 for each predetermined angle at the first height position H1, and makes one rotation in a horizontal plane. Data is stored in the RAM 9. In this case, as described above with reference to FIGS. 4 to 8, precise measurement is performed in accordance with the shape of the wall surface in the horizontal direction. That is, at the time when the amount of change is no longer constant in the horizontal direction, the rotation of the rotor 151 is returned to the horizontal position where the amount of change is constant, and remeasurement is performed at the horizontal position rotated by a short movement distance from the horizontal position. Do. That is, re-measurement is performed with a narrow measurement interval.

Incidentally, in the configuration of the embodiment shown in FIGS. 13 and 14, the laser rangefinder 110 is arranged at a position shifted from the center of the support column 102 by the distance LA (FIG. 14) and is configured to rotate around the support column 102. Therefore, the measurement result is shorter than the measurement distances L1, L2,... Ln described in FIGS. Therefore, in the CPU 7 of the present embodiment, the distance obtained by adding the distance LA to the measurement result of the laser distance meter 110 is defined as the measurement distances L1, L2,.
Thereby, the shape of the wall surface at the first height position H1 is stored in the RAM 9 (FIG. 15) as measurement data of the laser distance meter 110.

  After the process of step S101, the CPU 7 moves the process to step S102 and determines whether or not the measurement at the first height H1 is completed. In this process, when it is detected that the rotor 151 on which the laser distance meter 110 is mounted has made one rotation from the rotation start position, and the measurement result of the laser distance meter 110 is stored in the RAM 9, the CPU 7 determines the first height H1. It is judged that the horizontal measurement at has been completed.

  If the CPU 7 determines that the measurement at the first height H1 has not been completed, the process proceeds from step S102 to step S101, and the measurement at the first height H1 is continued. On the other hand, when it is determined that the measurement at the first height H1 is completed, the CPU 9 shifts the process from step S102 to step S103 and drives the lifting motor 132 in advance. The main body 112 is raised by a predetermined distance.

  Then, the CPU 9 shifts the processing from step S103 to step S104, and measures the wall surface at the height by the laser distance meter 110 while rotating the measuring motor 160 once at the height H2 after the vertical movement. In the predetermined step S104, the process of changing the measurement interval is executed at the corners and the like, as in step S101 described above.

Subsequently, the CPU 9 shifts the processing from step S104 to step S105, and determines whether or not the measurement at the second height H2 is completed.
If the CPU 7 determines that the measurement at the second height H1 has not been completed, the process proceeds from step S105 to step S104, and the measurement at the second height H2 is continued. On the other hand, when determining that the measurement at the second height H2 is completed, the CPU 9 shifts the processing from step S105 to step S106, and the main body 112 (that is, the measurement position (height of the laser distance meter 110) Determine if)) is at the top. The CPU 9 pre-sets in the RAM 7 the data representing the maximum measurement height in accordance with the height of the wall surface to be measured, and the main body 112 (that is, the laser) obtained from the control history of the elevating motor 132 so far. When the height of the distance meter 110) is compared and it is determined that the distance reaches the top, this measurement process is terminated by obtaining a positive result in step S106.

  On the other hand, if it is determined that the uppermost part has not been reached, the CPU 9 obtains a negative result in step S106, moves the process from step S106 to step S107, and performs the previous measurement height (for example, the first measurement height). Measurement result for one rotation centered on the column 102 at the height H1) and measurement result for one rotation centered on the column 102 at the current measurement height (for example, the second height H2). In comparison, a position where the measurement result (wall distance) of the laser rangefinder 110 has changed in excess of a preset threshold with the movement of the irradiation position on the wall surface in the vertical direction (here, the laser by the laser rangefinder 110) The vertical position of the wall surface specified by the vertical position of the stator 121 and the horizontal position of the wall surface specified by the rotational position of the rotor 151) A constant. The wall surface distances compared in step S107 are the same position in the horizontal direction on the wall surface, and are the wall surface distances above and below the wall surface distance. That is, the target specified in step S107 is a position where the wall surface distance changes greatly in the vertical direction on the wall surface. In this way, at the location where the shape changes greatly in the vertical direction of the wall surface (that is, the location where the wall surface is uneven), the state of the wall surface can be measured with high accuracy by detecting the change state in detail. .

  Thus, the CPU 9 determines whether or not precise measurement is necessary in step S107. Here, the measurement value of the laser distance meter 110 at the previous measurement height (for example, the first height H1) and the measurement value of the laser distance meter 110 at the current measurement height (for example, the second height H2). If the value (measured value at the same measurement position as the previous measurement and at a different height) has not changed beyond the threshold, this means that the vertical movement distance is reduced and This means that it is not necessary to perform horizontal measurement. In this case, the CPU 9 obtains a negative result in step S107, thereby moving the process from step S107 to step S108, and moving the main body unit by a predetermined distance set in advance. 112 is set to be raised, and the process proceeds to step S103, whereby the laser distance meter 110 is raised by the normal movement distance to the next height position (for example, the third height Executing a horizontal measurement at H3) (step S104).

  On the other hand, the laser distance meter 110 at the previous measurement height (for example, the first height H1) and the laser distance meter 110 at the current measurement height (for example, the second height H2). If the measured value (measured value at the same horizontal position as the previous measurement and at a different height) has changed beyond the threshold, this is the same as the previous measured height This means that there is a place where the wall distance changes greatly between the heights, that is, the vertical shape of the wall changes greatly. In this case, the irradiation position moves in the vertical direction. It is necessary to reduce the distance and perform horizontal measurement again. Therefore, the CPU 9 obtains a positive result in step S107, moves the process from step S107 to step S109, and raises the main body 112 by a distance smaller than a predetermined distance set in advance to perform measurement again. Do. As a result, the setting for executing the remeasurement with the laser rangefinder 110 by reducing the vertical movement distance is performed. At this time, the CPU 9 prepares for remeasurement by rotating the lifting motor 132 in the reverse direction and lowering the main body 112 to the previous measurement position. Then, the CPU 9 shifts the processing to step S103, and performs the horizontal measurement by raising the main body 112 by the small moving distance while the moving distance is set to be small (step S104).

  Thereby, the same measurement method as the precise measurement method according to the shape of the wall surface in the horizontal direction described above with reference to FIGS. 7 and 8 (that is, the height at which the amount of change is detected in the vertical direction is detected, Measurement can be performed in the vertical direction by lowering the main body 112 to a height where the amount of change is constant and performing re-measurement at a height that is increased by a short moving distance from the height.

  As described above, in the measurement process using the wall surface measuring apparatus 100, the laser distance meter 110 itself is moved up and down while keeping the vertical irradiation angle of the laser irradiated on the wall surface from the laser distance meter 110 without changing it. By measuring the wall distance at each height, the wall distance can be accurately measured.

  Specifically, when the wall distance at each wall height is measured by changing the vertical irradiation angle of the laser without changing the height of the laser distance meter 110, the distance from the laser distance meter 110 to the wall surface is large. The amount of change in the irradiation position on the wall surface with respect to the change in the laser irradiation angle increases. On the other hand, when the laser light source (laser distance meter 110) is moved up and down without changing the upper and lower irradiation angles of the laser and the laser beam is irradiated onto the wall surface while keeping the irradiation direction horizontal, the elevation distance of the laser distance meter 110 is increased. Becomes the amount of change of the irradiation position on the wall surface as it is, so that it becomes possible to measure with higher accuracy than when the irradiation angle is changed.

  Note that the threshold value determined in step S107 described above can be set in advance by the user. When this threshold value is increased, the sensitivity for re-measurement with respect to the unevenness of the wall surface can be lowered. That is, slight irregularities on the wall surface can be stored as measurement data. On the other hand, when the threshold value is reduced, the sensitivity for remeasurement with respect to the unevenness of the wall surface can be increased. That is, even slight irregularities on the wall surface can be stored as measurement data.

  Further, as the wall surface shape to be measured, not only the shape having the unevenness as shown in FIG. 12 but also when measuring the wall distance of the inclined wall surface as shown in FIG. The wall surface measuring apparatus 100 described above with respect to 16 can be used. In this case, since the wall distance measured at each height will change sequentially, it is possible to avoid unnecessary re-measurement by setting a threshold according to the inclination of the wall. Can do.

  Further, as shown in FIG. 2, the laser rangefinder 10 can be rotated around the horizontal axis Y by incorporating the configuration in the wall surface measuring apparatus 100 described above with reference to FIGS. By combining the configuration that can rotate around Y (Fig. 2) and the configuration that raises and lowers the laser rangefinder itself, for example, at a certain height, the laser rangefinder itself is raised and fixed horizontally in the irradiation direction. When measuring the wall distance at a height higher than that, by rotating the laser distance meter around the horizontal axis, the column 102 (FIG. 13) has a height above a certain height that is insufficient. By rotating the laser distance system around the horizontal axis with respect to the wall surface, the wall surface distance can be measured up to a high place.

  Also, as shown in FIG. 18, when an obstacle 180 such as furniture is placed between the laser distance meter 110 and the wall surface, it becomes difficult to measure the wall surface distance using a laser. The measured data can be corrected by estimating the obstacle 180 on the basis of the measurement data (measurement results vertically and horizontally with respect to the measurement position).

  Further, in the wall surface measuring apparatus 100, the case where the wall surface distance is measured for each predetermined height while the main body portion 112 is raised from the bottom to the top has been described. However, the present invention is not limited to this. The wall surface distance may be measured at predetermined intervals while lowering 112.

  In the above-described embodiment, the wall surface measuring device 100 configured to move the main body 112 up and down by the support column 102 has been described. However, the present invention is not limited to this. For example, an elevator mechanism is provided on the tripod 4 shown in FIG. You may make it raise / lower the wall surface measuring apparatus 1 (FIG. 2) which consists of the apparatus main body 2 and the rotary body 3 with a mechanism. In this case, the measurement method shown in FIGS. 12 to 18 can be realized using the tripod 4 by performing measurement with the wall surface measuring apparatus 1 fixing the laser irradiation direction in the horizontal direction.

(7) In the above-described embodiment, the case where the level of the wall surface measuring device 1 is manually adjusted has been described.
Specifically, as shown in FIG. 19 in which parts corresponding to those in FIG. 3 are assigned the same reference numerals, the apparatus main body 2 is provided with a horizontal sensor 18. For example, the horizontal sensor 18 has a configuration in which a liquid and a small amount of air bubbles are sealed in a transparent small container, light is transmitted through the center, and the level is measured by detecting the transmitted light with the sensor.

  As shown in FIG. 20, the apparatus main body 2 is supported by support legs 16A, 16B, and 16C, and the protruding heights of the support legs 16A, 16B, and 16C can be adjusted by horizontal motors 19A, 19B, and 19C. It has become. The CPU 7 (FIG. 19) automatically controls the horizontal motors 19A, 19B, and 19C based on the detection result of the horizontal sensor 18 to adjust the protruding heights of the support legs 16A, 16B, and 16C to automatically move the apparatus body 2 It is configured to keep it horizontal.

  As shown in FIGS. 19 and 20, the apparatus main body 2 is provided with an input / output port (I / O port) 17 for transmitting and receiving data to and from an external device (for example, the PC 11). . The input / output port 17 is an input / output port such as a USB (Universal Serial Bus) connector that can exchange data with the PC 11, for example, and connection management is performed by the communication unit 12. The input / output port 17 is assigned a unique I / O port address and is identified by the CPU 7. As described above, by providing the input / output port (I / O port) 17, not only the PC 11 but also other peripheral devices can be connected.

  (8) Although the case where the wall surface distance is measured using a laser has been described in the above embodiment, the wall surface distance can be measured using other media such as a sound wave, without being limited to the laser.

DESCRIPTION OF SYMBOLS 1,100 Wall surface measuring apparatus 2 Apparatus main body 3 Rotating body 4 Tripod 7 CPU
8 ROM
9 RAM
10, 110 Laser distance meter 11 Personal computer 12 Communication section 16A-16C Support leg 17 Input / output port 18 Horizontal sensor 19A-19C Horizontal motor 102 Strut 102A Rack gear 112 Main body 121 Stator 125 Substrate 131 Pinion gear 132 Lifting motor 151 Rotor

Claims (1)

A data used by the computer in advance stores a resolution size of the standard products covering the walls, this data can be stored as a group of data of the dimensions of the inner wall by measuring the dimensions of the inner wall which irregularities are present A wall surface measuring method capable of
A) A measurement process of irradiating the surface to be measured while rotating the laser distance meter around the support shaft and measuring the distance from the laser distance meter to the measurement position irradiated with the laser;
B) A rotation angle detection process for detecting a rotation angle obtained by rotating the laser distance meter from the measurement position of the previous laser measured in the measurement process to the measurement position at the time of the current measurement;
C) A process of obtaining a distance for each measurement position from the two measurement distances acquired in the previous and current measurement processes and the rotation angle detected in the rotation angle detection process and storing them in a storage unit;
D) When the measurement distance from the laser distance meter to the measurement position is compared for each adjacent measurement position, and the amount of change in the distance between the measurement positions deviates from the predetermined amount of change, the measurement position by the previous laser To the measurement position at the time of the current measurement, a process of changing the angle amount rotated around the spindle and shortening the laser measurement interval and repeating the processes (A) to (C),
E) The distance from the laser distance meter to the measurement position irradiated with the laser, obtained by repeating the processes of (A) to (C), and the measurement position by the previous laser measured in the measurement process from the angle of rotation which rotates the laser rangefinder to the measuring position during current measurement, by performing a process of storing the distance between every the measurement position plural times consecutively, the obtaining the dimensions of the wall A data generation process for generating a group of data;
A wall surface measuring method characterized by comprising:

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