JP4387540B2 - Elevator dimension measuring device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator dimension measuring apparatus that automatically measures the dimensions of each part in an elevator hoistway.
[0002]
[Prior art]
Conventionally, when renovating or refurbishing an elevator, in the preliminary preparation stage of drawing creation in the hoistway, accurately grasp the situation in the hoistway and obtain the dimension values of each part necessary for drawing drawing in the hoistway For this purpose, people actually went to the site and measured the dimensions of each part in the hoistway.
[0003]
[Problems to be solved by the invention]
However, in such a conventional dimension measuring method, it is necessary for a person to enter the elevator machine room or the hoistway and to actually measure the dimensions of each part using a tape measure or a straight scale. This measurement work needs to be performed mainly on a pit or a cage in the hoistway in addition to the machine room, and the measurement operator must enter the hoistway. In particular, in the measurement work on the car, the longer the measurement distance, the more the person has to get out of the car and make the measurement. Therefore, the work is difficult for one person, and a plurality of personnel are required. In addition, since it is necessary to actually work on the car, it is not possible for the sales staff to do it, and it is necessary for the maintenance engineer to work. In addition, since a person actually measures, there is a problem that an error is likely to occur, and there is a variation in measurement values depending on the person to be measured.
[0004]
The present invention has been made in view of such conventional problems, and can automatically measure the dimensions of each part in the hoistway and can also automatically convert to drawing data. It is an object of the present invention to provide an elevator dimension measuring apparatus that does not require a skilled worker and can increase measurement accuracy.
[0005]
[Means for Solving the Problems]
An elevator dimension measuring apparatus according to a first aspect of the present invention is a car position measuring device that is installed on an elevator car and performs non-contact measurement of the distance to the ceiling of the hoistway when the car is raised and lowered, and the elevator car. A horizontal distance meter that is installed above and performs a non-contact measurement of the horizontal distance to the surface of an object located at each part in the hoistway, and the measurement data of the car position measurement meter and the measurement data of the horizontal distance meter each acquisition have row arithmetic processing of the acquired data, in which an arithmetic unit for generating drawing data in the hoistway.
[0006]
In the elevator dimension measuring apparatus according to the first aspect of the present invention, the car is moved up and down in the hoistway, and the distance from the hoistway ceiling to the ceiling of the hoistway as the elevator car moves up and down is measured by a car position meter installed on the car. Perform without contact. The wall surface of the hoistway from the own apparatus by a horizontal distance meter, was measured horizontal distance to the surface of the object to be measured body such as guide rails, the measurement of the measurement data and the horizontal distance meter of the car position measurement system by computing device data respectively acquired by have row arithmetic processing of the acquired data, generates drawing data in the hoistway. In this way, the dimensions between the wall surfaces, the rail gauge dimensions, and the like at each position in the vertical direction within the elevator hoistway are automatically measured to generate drawing data .
[0008]
According to a second aspect of the present invention, in the elevator dimension measuring apparatus according to the first aspect , a laser, an infrared ray, an ultrasonic wave, or an electromagnetic wave is used as the horizontal distance meter, and the apparatus is moved up and down from the apparatus at a fixed place. By measuring the distance between each part in the road without contact, the labor required for the measurement work is reduced.
[0009]
A third aspect of the present invention, in the dimension measuring apparatus according to claim 2 elevators, the horizontal distance meter, which has a rotating mechanism for scanning each portion of the hoistway the device is horizontally rotated, Measure the distance from the device to the surrounding parts by rotating the device with a rotating mechanism at a certain place in the elevator hoistway, and calculate the dimensions of each part in the hoistway based on the measurement data This reduces the labor required for the measurement work and improves the measurement accuracy.
[0010]
According to a fourth aspect of the present invention, in the elevator dimension measuring apparatus according to the first aspect , a laser, infrared ray, ultrasonic wave, or electromagnetic wave is used as the car position measuring instrument , and the apparatus is mounted on the elevator car. By measuring, the distance from the hoistway ceiling to the elevator car is measured without contact.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 and 2 show an embodiment of an elevator dimension measuring apparatus according to the present invention. Laser distance meter 11 for horizontal distance measurement, laser distance meter 12 for car position measurement, and measurement data of these distance meters 11 and 12 are acquired and stored on a car 2 that moves up and down the elevator hoistway 1. In addition, a computer 13 for executing predetermined arithmetic processing is installed. Further, the laser distance meter 11 for measuring the horizontal distance is provided with a motor 14 for horizontally rotating the laser distance meter 11, and the computer 13 performs rotation angle control and rotation angle detection.
[0015]
The laser rangefinders 11 and 12 may be of other methods such as electromagnetic wave use, infrared ray use, ultrasonic wave use, etc., as long as they can measure the linear distance from the device to the object to be measured without contact. Good. The computer 13 is normally used as a personal computer and incorporates a predetermined calculation control program to achieve the calculation control function of the present invention, and stores data and programs as shown in FIG. A storage unit 13A and a calculation unit 13B that executes predetermined calculation processing are provided. The rotation speed and angle of the motor 14 are controlled by the computer 13, and the rotation angle is input to the computer 13.
[0016]
Next, the operation of the elevator dimension measuring apparatus having the above configuration will be described. The apparatus is installed on the elevator car 2 as shown in FIG. Then, based on the control program of the computer 13, the periphery is scanned 360 ° horizontally by the laser distance meter 11 for horizontal distance measurement while rotating the motor 14, and the distance from the distance meter 11 to each part is compared with the rotation angle. Obtained as measured data and stored in the storage unit 13A of the computer 13. The vertical position of the car 2 is acquired as a distance from the distance meter to the hoistway ceiling surface by the car distance measuring laser distance meter 12, and the measurement data is stored in the storage unit 13 </ b> A of the computer 13.
[0017]
The calculation unit 13B of the computer 13 performs calculation based on the data stored in the storage unit 13A, and measures the distance between the walls and the rail gauge based on the measurement data of the horizontal distance of each part in the hoistway 1 at each position of the elevator car 2. The dimensions are calculated, and the drawing data of the inner shape of the hoistway 1 is calculated.
[0018]
The above operation is program-controlled by the computer 13, and this operation will be described in more detail based on the flowchart shown in FIG. The motor 14 receives an origin return command from the computer 13. By this command, the motor 13 returns to the origin 1 and waits (step S05).
[0019]
Next, the motor 14 receives an angle data acquisition command from the computer 13, and the computer 13 acquires rotation angle data of the motor 14 (step S10). At this time, the computer 13 recognizes that the return to origin is completed.
[0020]
Next, the car distance measuring laser distance meter 12 receives a distance measurement start command from the computer 13 and measures the distance in the vertical direction (step S15). Thereby, the computer 13 acquires the distance data in the vertical direction, converts it into car position data by the internal calculation unit 13B, and stores it in the storage unit 13A (step S20).
[0021]
Next, the motor 14 receives a rotation / stop command from the computer 13, rotates by the rotation angle set in advance in the control program, and waits (step S25). Thereafter, the motor 14 receives a rotation angle data acquisition command from the computer 13 and transmits the rotation angle data to the computer 13 (step S30).
[0022]
Next, the laser distance meter 11 for horizontal distance measurement receives a distance measurement start command from the computer 13 and starts distance measurement (step S35). Then, the computer 13 acquires horizontal distance measurement data at each rotation angle (step S40).
[0023]
Thereafter, the processes in steps S25 to S40 are repeated until the motor 14 measures the horizontal distance of a predetermined measurement range, that is, 360 °.
[0024]
When the processing of steps S05 to S40 is completed at the car position in this way, the car 2 is moved to the next measurement height position, thereby moving the vertical height of the elevator dimension measurement apparatus. Then, at the predetermined height position, the car position is measured and the horizontal distance of each part in the hoistway 1 is measured by the processes of steps S05 to S40 in the same manner as described above.
[0025]
Thus, when the computer 13 completes the automatic measurement of the horizontal distance data at each height position in the hoistway 1, subsequently, the inter-wall dimension and rail gauge dimension of the hoistway 1 are calculated, and the drawing data is also obtained. The conversion process is also performed. This process will be described below with reference to FIGS.
[0026]
FIG. 4 shows an outline of the horizontal distance measurement of each part of the hoistway 1 at a certain car position by the dimension measuring device. Laser light 15 emitted from a laser distance meter 11 for horizontal distance measurement installed on a car of the elevator car 2 is rotated around the apparatus such as a guide rail 21 and a hoistway wall 22 by rotation of the motor 14. The surface of the object located in each part is scanned. Thereby, the laser distance meter 11 measures the horizontal distance to the surrounding object by the motor 14 and stores it in the computer 13 as data corresponding to the rotation angle data. Here, the scanning trajectory of the laser light is as shown by a thick line indicated by reference numeral 23 in FIG.
[0027]
As shown in FIG. 5, the calculation unit 13B of the computer 13 calculates the hoistway wall surface dimension and the rail gauge dimension from the horizontal distance data acquired in this way. That is, the distance A between the laser rangefinder 11 and the hoistway wall 22 and the distance B to the wall 22 on the opposite side to this are obtained. And the dimension between wall surfaces of the hoistway 1 (= A + B) is calculated by the calculation of A + B.
[0028]
As for the rail gauge dimension L, first, the distance C from the laser distance meter 11 to the guide rail blade surface is acquired, and then the distance D from the laser distance meter 11 to the other guide rail blade surface is acquired. When these distances C and D are acquired, the angle α formed between the two CDs is calculated from the rotation angle data of the motor 14. Then, the rail gauge dimension is calculated as the length of the base of the triangle that is uniquely determined by the angle α formed by these two sides.
[0029]
The elevator dimension measuring apparatus according to the present invention is further based on the measurement data obtained by the distance meters 11 and 12 and the dimension data of each part calculated based on these measurement data. The drawing data in is generated. This drawing data is processed online by a computer 13 using a CAD program incorporated therein and a drawing is automatically created and output, or is taken off-line from the computer 13 and the same CAD program as described above by another computer. It is also possible to automatically create a drawing by processing.
[0030]
Thus, in the elevator dimension measuring apparatus of this embodiment, the dimensions in the hoistway at each car position can be automatically measured by installing the apparatus on the elevator car and moving the car. This eliminates the need for multiple personnel to work on the car for dimension measurement work, and reduces individual differences and errors as in the case of actual measurement by human systems. Good dimensional measurement.
[0031]
In the above-described embodiment, a computer is used as the arithmetic device. However, this computer may be a one-chip microcomputer dedicated to the dimension measuring device incorporated in the device case as the dimension measuring device.
[0032]
【The invention's effect】
As described above, according to the first aspect of the present invention, the car is moved up and down in the hoistway, and the distance to the ceiling of the hoistway accompanying the raising and lowering of the elevator car is measured in a non-contact manner by the car position measuring instrument . wall surface of the hoistway from the self-device by meter, the guide was measured horizontal distance to the surface of the object to be measured body such rails, the car position measurement meter by the arithmetic unit measurement data and the horizontal distance meter measurement data, respectively acquires and have rows arithmetic processing of the acquired data, it is possible to generate the drawing data in the hoistway. For this reason, there is no need for a work in which a plurality of personnel get on the elevator car to perform actual measurement as in the conventional dimension measurement work in the hoistway, which can improve work safety and reduce individual differences and errors. Therefore, accurate dimension measurement can be performed. Further, since drawing data in the elevator hoistway can be created, a drawing in the elevator hoistway can be automatically created from this drawing data using CAD.
[0034]
According to the second aspect of the invention, in addition to the effect of the invention of claim 1, lifting the horizontal distance meters, laser, infrared, since the use of ultrasonic or electromagnetic waves, the device from the device in certain places The distance between each part in the road can be measured without contact.
[0035]
According to the invention of claim 3 , in addition to the effect of the invention of claim 2 , the horizontal distance meter includes a rotation mechanism for horizontally rotating the distance meter to scan each part in the hoistway. A dimension measuring device is installed in a certain place in the elevator hoistway and the distance to each part around it is measured by rotating the horizontal distance meter with a rotating mechanism. Based on the measurement data, each part in the hoistway is measured. The dimensions can be calculated and the measurement accuracy can be improved.
[0036]
According to the fourth aspect of the invention, in addition to the effect of the invention of claim 1, as a car position measurement meter, laser, infrared, since the use of ultrasonic or electromagnetic waves, the linear measurement apparatus given elevator car By performing the measurement while being attached to a place, the distance from the hoistway ceiling surface to the elevator car can be measured in a non-contact manner.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a hardware configuration of one embodiment of the present invention.
FIG. 2 is a block diagram showing a functional configuration of the embodiment.
FIG. 3 is a flowchart of a hoistway dimension measuring operation according to the embodiment.
FIG. 4 is an explanatory diagram showing a horizontal distance measuring operation by a laser distance meter for measuring a horizontal distance at a certain car position according to the above embodiment.
FIG. 5 is an explanatory diagram showing a calculation operation of a dimension between wall surfaces and a rail gauge dimension in a hoistway at a certain car position according to the above embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hoistway 2 Car 11 Laser distance meter 12 Laser distance meter 13 Computer 14 Motor 21 Guide rail 22 Hoistway wall

Claims (4)

A car position meter that is installed on the elevator car and performs non-contact measurement of the distance to the ceiling of the hoistway as the car is raised and lowered;
A horizontal distance meter which is installed on the elevator car and performs non-contact measurement of a horizontal distance to the surface of an object located at each part in the hoistway ;
The dimensions of an elevator comprising an arithmetic unit wherein the measurement data of the car position measurement meter measurement data of the horizontal range finder obtains respectively have row arithmetic processing of the acquired data, and generates the drawing data of the hoistway measuring device. The elevator dimension measuring apparatus according to claim 1, wherein a laser, infrared rays, ultrasonic waves, or electromagnetic waves are used as the horizontal distance meter . The elevator distance measuring apparatus according to claim 2, wherein the horizontal distance meter includes a rotation mechanism for horizontally rotating the apparatus and scanning each part in the hoistway . The elevator size measuring apparatus according to claim 1, wherein a laser, infrared rays, ultrasonic waves, or electromagnetic waves are used as the car position measuring instrument.

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