Elevator shaft wall structure error measurement and center line paying-off system

Abstract

The utility model relates to the technical field of building construction, in particular to an elevator shaft wall structure error measuring and center line paying-off system which comprises a rotor wing unmanned aerial vehicle used for carrying a laser radar device, a cross laser device and a CCD photosensitive automatic centering module and arranged in an elevator shaft. The laser radar device is used for remotely measuring and scanning the elevator shaft; the cross laser is used for carrying out horizontal line and vertical line lofting on the elevator shaft; and the CCD photosensitive automatic centering module is used for carrying out centering, orientation and height determination on the elevator hoistway. According to the system, measurement and lofting work can be rapidly completed, meanwhile, a curve result formed through distance measurement can more visually lock large structural deviation existing at a certain position at a certain height, the structural problem of a well wall can be conveniently recognized and corrected in time on site, construction production efficiency and quality are improved, manpower input is reduced, and the construction cost is reduced. The operation time is shortened, and the operation precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an elevator shaft wall structure error measurement and center line laying system. Background Art

[0002] Before installing existing elevators, the structure of the elevator shaft needs to be reviewed to ensure that the size and flatness of the elevator shaft meet the design requirements. At the same time, the center line of the elevator door needs to be found to ensure that the center position from the bottom floor to the top floor is consistent, so the elevator track and door leaf need to be accurately positioned. At present, when reviewing the structure, construction workers mostly measure the structural deviation manually by hanging wires. However, this measurement method has the following disadvantages:

[0003] 1) The measurement process is relatively slow, time-consuming and inefficient.

[0004] 2) Human factors have a great influence, resulting in large measurement errors.

[0005] 3) It requires more manpower and material resources and is costly.

[0006] 4) The failure to measure the full range may lead to large structural errors and may cause missed measurements in places that affect construction. When laying out the center line, the hanging line must be completely stable before measuring the mark. Utility Model Content

[0007] The purpose of the utility model is to provide an elevator shaft wall structure error measurement and center line pay-out system to solve the problems raised in the above-mentioned background technology.

[0008] The technical solution of the utility model is: an elevator shaft wall structure error measurement and center line laying system, including:

[0009] A rotary wing drone is used to carry a laser radar device, a cross laser and a CCD photosensitivity automatic centering module, and is set inside the elevator shaft;

[0010] A laser radar device for long-distance measurement and scanning of the elevator shaft;

[0011] A cross laser for staking out horizontal and vertical lines of the elevator shaft;

[0012] The CCD photosensitivity automatic centering module is used to center, orient and determine the height of the elevator shaft.

[0013] Furthermore, it also includes:

[0014] The central control module is used to receive the data information sent by the human-computer interaction module and process the data information;

[0015] The human-computer interaction module is used to exchange information with the rotor UAV, the laser radar device, the cross laser and the CCD photosensitivity automatic centering module.

[0016] Furthermore, according to the coordinates of the ranging points corresponding to the rotary wing UAV, the size of the orthogonal polynomial parameters is determined, specifically:

[0017] p = polyfit(x,y,n)

[0018] Where: p is the orthogonal polynomial parameter, x is the x-axis coordinate of the well wall point, y is the y-axis coordinate of the well wall point, and n is the degree of the polynomial.

[0019] Furthermore, the rotor drone is arranged on a vertical alignment laser emitted by a laser vertical alignment instrument, and the laser vertical alignment instrument is arranged at the upper end of the midpoint of the elevator shaft.

[0020] Furthermore, the midpoints of the rotor drone and the elevator shaft are located on the same vertical line.

[0021] Furthermore, the vertical alignment laser is parallel to the center line of the elevator door.

[0022] Furthermore, the CCD photosensitivity automatic centering module includes a CCD photosensitivity automatic centering sensing grid, and the center of the CCD photosensitivity automatic centering sensing grid corresponds to the center line of the vertical laser.

[0023] Furthermore, the CCD photosensitivity automatic centering sensing grid includes a plurality of CCD photosensors, and two adjacent CCD photosensors are connected to each other.

[0024] The utility model provides an elevator shaft wall structure error measurement and center line laying system through improvement, which has the following improvements and advantages compared with the prior art:

[0025] The system of the utility model realizes precise spatial positioning in the centering, orientation and height determination stages, detailed measurement of the structural errors of the elevator shaft wall, and efficient implementation of the elevator shaft centerline layout through the interaction between the rotor UAV, the laser plummet, the central control module and the human-computer interaction module, so that the measurement and layout work can be completed quickly, which greatly improves the work efficiency. At the same time, the curve result formed by the ranging can more intuitively lock the major structural deviations in a certain part at a certain height, which is convenient for timely identification and correction of the structural problems of the shaft wall on site, thereby improving the construction production efficiency and quality, reducing manpower input, shortening the operation time, and improving the operation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0027] Figure 1 It is a structural schematic diagram of the elevator shaft wall structural error measurement and center line pay-out system of the utility model;

[0028] Figure 2 This is the system block diagram of the elevator shaft wall structure error measurement and center line pay-out system of the utility model;

[0029] Description of reference numerals:

[0030] 1. Rotary-wing UAV; 2. Elevator shaft; 3. Elevator door center line; 4. Vertical alignment laser; 5. Laser vertical alignment instrument; 6. Central control module; 7. Human-computer interaction module; 8. LiDAR; 9. Cross laser; 10. CCD photosensitivity automatic centering module. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that, in the description of the present invention, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0034] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0035] refer to Figure 1 and Figure 2, this embodiment provides an elevator shaft wall structure error measurement and centerline laying system, which includes a rotor drone 1, a laser plumb line 5, a central control module 6 and a human-computer interaction module 7. The rotor drone 1, the laser plumb line 5 and the human-computer interaction module 7 exchange information through the central control module 6. Specifically, the rotor drone 1 is used to carry a laser radar device 8, a cross laser 9 and a CCD photosensitive automatic centering module 10, and is arranged inside the elevator shaft 2. The laser radar device 8 is used to measure and scan the elevator shaft 2 at a long distance, the cross laser 9 is used to lay out the horizontal and vertical lines of the elevator shaft 2, and the CCD photosensitive automatic centering module 10 is used to center, orient and determine the height of the elevator shaft 2.

[0036] In this embodiment, the central control module 6 is used to receive data information sent by the human-computer interaction module 7 and process the data information. The human-computer interaction module 7 is used to exchange information with the rotor drone 1, the laser radar device 8, the cross laser 9 and the CCD photosensitivity automatic centering module 10. Specifically, the rotor drone 1 is set on the vertical alignment laser 4 emitted by the laser vertical alignment instrument 5, and the laser vertical alignment instrument 5 is set at the upper end of the midpoint of the elevator shaft 2. It is worth noting that the vertical alignment laser 4 is parallel to the elevator door centerline 3. At the same time, the midpoints of the rotor drone 1 and the elevator shaft 2 are located on the same vertical line.

[0037] Furthermore, the CCD photosensitive automatic centering module 10 includes a CCD photosensitive automatic centering sensing grid, and the center of the CCD photosensitive automatic centering sensing grid corresponds to the center line of the vertical laser 4. Specifically, the CCD photosensitive automatic centering sensing grid includes a plurality of CCD photoreceptors, and two adjacent CCD photoreceptors are connected to each other.

[0038] In this embodiment, the size of the orthogonal polynomial parameters is determined according to the coordinates of the ranging point corresponding to the rotor UAV 1, specifically:

[0039] p = polyfit(x,y,n)

[0040] Where: p is the orthogonal polynomial parameter, x is the x-axis coordinate of the well wall point, y is the y-axis coordinate of the well wall point, and n is the degree of the polynomial.

[0041] Specifically, the use process of the elevator shaft wall structure error measurement and center line pay-out system in this embodiment is as follows:

[0042] Step 1: First, lay out the center line of the elevator door on the first floor, measure the base position at the bottom of the elevator shaft, and measure the spatial center position of the elevator shaft to complete the positioning of the center line and center point of the elevator shaft. Then set up the laser plumb line 5 above the center point, level and center it, and project the plumb line laser 4. At the same time, in the first floor shaft space, use the rotor drone 1 to capture the plumb line laser 4.

[0043] Start the CCD photosensitive automatic centering module 10, and use the rotor drone 1 to make the center line of the vertical laser 4 fall into the center of the CD photosensitive automatic centering sensing grid. Then make a mark at the first floor elevation reference line, and start the laser radar device 8 at the same time. Use the rotor drone 1 to adjust the vertical laser and the elevator door center line indicated by the directional felt sign to coincide, and complete the center line alignment. At the same time, control the rotor drone 1 to fly up and down, and its horizontal laser line coincides with the first floor elevation reference line, so that the height initialization of the rotor drone 1 can be completed.

[0044] Step 2: In this embodiment, the rotor drone 1 is controlled to perform a 360° scan every 0.5 meter height difference, and the operation data obtained by the scan is sent to the central control module 6. It is worth noting that the operation data here includes the obtained height value and the distance from the corresponding center point to the elevator shaft wall. At the same time, in this embodiment, all data interaction means are existing conventional technical means, so they will not be repeated in this embodiment.

[0045] Further, according to the data information obtained in the central control module 6, the upper and lower structural errors of the well wall at the corresponding height are obtained. Specifically, in this embodiment, the coordinate system of the rotary-wing drone 1 is set to a polar coordinate system, and the initial coordinate is (0, 0). At the same time, the rotary-wing drone 1 rotates clockwise for collection, and the point coordinates of each distance measurement of the rotary-wing drone are (S, θ). Further, the polar coordinate system is converted into a plane rectangular coordinate system, and the coordinates of each well wall point are:

[0046] (x=S*sinθ,y=S*cosθ)

[0047] S=1 / 2ct

[0048] Where: S is the distance between the center of the rotor UAV flat-scan laser radar and the elevator shaft wall, θ is the rotation angle of the rotor UAV, x is the x-axis coordinate of the shaft wall point, and y is the y-axis coordinate of the shaft wall point.

[0049] By gathering the collected multiple coordinate points and using the least squares method, the curve can be fitted, and the size of the orthogonal polynomial parameters can be determined through MATLAB's orthogonal polynomials, specifically:

[0050] p = polyfit(x,y,n)

[0051] Where: p is the orthogonal polynomial parameter, x is the x-axis coordinate of the well wall point, y is the y-axis coordinate of the well wall point, and n is the degree of the polynomial.

[0052] Step 3: Place the rotor drone 1 at 1 meter and control the rotor drone 1 to fly upward. At the upper and lower opening structures of the elevator door on the second floor, mark the corresponding center line according to the cross horizontal lines of the cross laser 9, then lay out the elevator door frame and track installation reference line, and repeat until the last floor.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator shaft wall structure error measurement and center line pay-out system, characterized in that: Included are: A rotary wing unmanned aerial vehicle (1) is used to carry a laser radar device (8), a cross laser (9) and a CCD photosensitivity automatic centering module (10), and is arranged inside an elevator shaft (2); A laser radar device (8) for long-distance measurement and scanning of the elevator shaft (2); A cross laser (9) for staking out horizontal and vertical lines of the elevator shaft (2); A CCD photosensitivity automatic centering module (10) is used to center, orient and determine the height of the elevator shaft (2).

2. The elevator shaft wall structure error measurement and center line pay-out system according to claim 1 is characterized in that: Also included are: A central control module (6) is used to receive data information sent by the human-computer interaction module (7) and process the data information; The human-machine interaction module (7) is used to perform information exchange with the rotary-wing UAV (1), the laser radar device (8), the cross laser (9) and the CCD photosensitivity automatic centering module (10).

3. The elevator shaft wall structure error measurement and center line pay-out system according to claim 1 is characterized in that: According to the coordinates of the distance measurement points corresponding to the rotary wing UAV (1), the magnitudes of the orthogonal polynomial parameters are determined, specifically: p = polyfit(x,y,n) Where: p is the orthogonal polynomial parameter, x is the x-axis coordinate of the well wall point, y is the y-axis coordinate of the well wall point, and n is the degree of the polynomial.

4. An elevator shaft wall structure error measurement and centerline pay-out system according to claim 1 or 2, characterized in that: The rotary wing drone (1) is arranged on a vertical alignment laser (4) emitted by a laser vertical alignment instrument (5), and the laser vertical alignment instrument (5) is arranged at the upper end of the midpoint of the elevator shaft (2).

5. The elevator shaft wall structure error measurement and center line pay-out system according to claim 4 is characterized in that: The midpoints of the rotor drone (1) and the elevator shaft (2) are located on the same vertical line.

6. The elevator shaft wall structure error measurement and center line pay-out system according to claim 4 is characterized in that: The vertical alignment laser (4) and the elevator door center line (3) are parallel to each other.

7. An elevator shaft wall structure error measurement and center line pay-out system according to claim 1 or 2, characterized in that: The CCD photosensitivity automatic centering module (10) comprises a CCD photosensitivity automatic centering sensing grid, and the center of the CCD photosensitivity automatic centering sensing grid corresponds to the center line of the vertical alignment laser (4).

8. The elevator shaft wall structure error measurement and center line pay-out system according to claim 7, characterized in that: The CCD photosensing automatic centering sensing grid includes a plurality of CCD photosensors, and two adjacent CCD photosensors are connected to each other.

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