JP6841882B2 - Elevator camera inspection device - Google Patents

Description

Embodiments of the present invention relate to an elevator camera inspection device.

There is a known inspection device that inspects whether or not the optical sensor receives the reflected light of the light beam emitted from the optical sensor in order to detect that a foreign object or a passenger is caught in the entrance / exit of the elevator.
On the other hand, it is inspected whether or not the elevator camera installed in the basket operates properly (the quality of the camera).

Japanese Unexamined Patent Publication No. 2013-53912

In the inspection of the elevator camera, when the frontage size and the like of the basket are different, inspection devices corresponding to the different frontage sizes and the like are required, and it is necessary to prepare a plurality of types of inspection devices.

Therefore, we provide an elevator camera inspection device that can inspect the quality of the camera with the same inspection device even if the frontage size of the basket is different.

The elevator according to the embodiment is an inspection device for inspecting an elevator camera installed on a curtain plate of a cage, and includes an inspection box that shields light from the top plate, the bottom plate, and between the top plate and the bottom plate, and inspection control. The inspection box includes a camera mounting portion on which the camera is mounted on the top plate, a lighting portion that illuminates the inside of the inspection box, and a display portion provided on the inner surface of the box of the bottom plate. The inspection control unit is an inspection device for an elevator camera that receives an image signal of the display unit taken by the camera and determines whether or not the image signal of a predetermined region is included.

It is a figure which shows the schematic structure of the inspection apparatus of the elevator camera which concerns on embodiment, and shows the inspection box in a vertical cross section. It is a perspective view which shows through the inspection box shown in FIG. It is a top plate of the inspection box shown in FIG. 1, and is a plan view showing a state before mounting each component. It is a figure which shows the processing of a camera image by an inspection control unit. It is a vertical cross-sectional view which shows the schematic structure of an elevator. It is a vertical cross-sectional view of the curtain plate which attached the camera device. It is a perspective view which shows the appearance of the camera device. It is a perspective view which shows the state which the cover and the interface unit of a camera apparatus were removed. It is a perspective view which looked at the base of a camera apparatus from the bottom. It is a perspective view of the cage of the double door device equipped with the camera device shown in FIG. 6 as viewed from the inside of the cage. It is a perspective view of the cage of the left single door device equipped with the camera device shown in FIG. 6 as viewed from the inside of the cage. It is a perspective view of the cage of the right single door device equipped with the camera device shown in FIG. 6 as viewed from the inside of the cage.

Hereinafter, the elevator camera inspection device according to the embodiment will be described with reference to the accompanying drawings. First, the elevator 1 and the elevator camera 7 will be described with reference to FIG.
As shown in FIG. 5, the elevator 1 is provided with a basket 5 for landing on a landing 3 on an arbitrary floor.
The elevator 1 determines the movement of a person near the landing 3 based on the video information acquired by the camera 7, and controls the opening / closing of the door device 9 on the landing 3 side and the door device 11 on the boarding 5 side. I do. In FIG. 5, the alternate long and short dash line A illustrates the angle of view of the camera 7. Further, as shown in FIG. 10, in the elevator 1 of this embodiment, the door doors 8 and 8 of the door devices 9 and 11 are double doors.
As shown in FIG. 5, a landing side sill 9a is provided at the lower end of the door device 9 on the landing 3 side, and a basket side sill 11a is provided at the lower end of the door device 11 on the boarding 5 side.

As shown in FIGS. 5 and 6, a curtain plate 13 is provided on the door device 11 of the cage 5, and a camera device 15 in which the camera 7 is incorporated is fixed to the curtain plate 13.
As shown in FIG. 6, the curtain plate 13 has an outer wall 13a facing the landing side, an inner wall 13b facing the inside of the basket 5, and a bottom wall 13c connecting the outer wall 13a and the inner wall 13b, and has a bottom. The camera device 15 is installed on the wall 13c.
The bottom wall 13c is provided with a window portion 13d at the abutting position when the door ends of the left and right door doors 8 and 8 (see FIG. 10) are closed. The window portion 13d is formed by fitting a transparent resin material 17 into a through hole.

As shown in FIG. 7, the camera device 15 includes a base 15a, one side cover 15b, and the other side cover 15c, and the housing 16 is formed by the base 15a, the one side cover 15b, and the other side cover 15c. Is forming. An opening / closing lid 12 for connecting a terminal of an external device to the connector 37 (see FIG. 6) is provided above the one-side cover 15b.
As shown in FIG. 8, the base 15a is provided with a camera substrate 19, an image processing unit 35, and an interface unit (not shown).

As shown in FIG. 6, a camera 7 with the sensor 7b and the lens 7a facing downward is mounted on the lower surface of the camera substrate 19.
As shown in FIG. 8, the camera substrate 19 is fixed to a plurality of corner support portions 21 erected on the base 15a by fasteners 25 that are fastened from above.

Next, the lens hole 29 in which the lens 7a of the camera 7 is arranged in the base 15a of the camera device 15 will be described.
As shown in FIG. 9, a lens hole 29 is formed in the base 15a of the camera device 15 corresponding to the mounting position of the camera substrate 19.
The center 29a of the lens hole 29 is located at the center position W / 2 of the width dimension W of the base 15a. Further, the center 29a of the lens hole 29 is eccentric with respect to the longitudinal direction L of the base 15a, and the dimension L1 from the center 29a of the lens hole 29 to one end 20 in the longitudinal direction is larger than the dimension L2 from the other end 22 in the longitudinal direction. Is also getting shorter.
The dimension L1 indicates that when the camera device 15 is installed on the curtain plate 13, one end 20 of the base 15a in the camera device 15 is attached to the curtain plate 13 when the door is a single door (see FIGS. 11 and 12). The lens hole 29 is arranged at an appropriate position with respect to the door end frame of the door when it is aligned with the end (specified dimension).

The camera device 15 performs image processing based on the input / output signals of the camera 7 by the image processing unit 35 (see FIG. 8), and the processed image is transmitted to the elevator via the interface unit (not shown). It is transmitted to the elevator system that controls the drive.

Next, an elevator camera inspection device (hereinafter, simply referred to as “inspection device”) 41 according to the present embodiment will be described.
As shown in FIG. 1, the inspection device 41 inspects whether the camera 7 mounted on the camera device 15 is a non-defective product (OK product) or a defective product (NG product), and includes an inspection box 43 and an inspection control unit 45. It has.
As shown in FIGS. 1 and 2, the inspection box 43 is formed of a top plate 43a, a bottom plate 43b, and a side plate 43c in a square columnar shape, and the inside of the inspection box 43 is formed by the top plate 43a, the bottom plate 43b, and the side plate 43c. It is shielded from the outside. The top plate 43a and the side plate 43c are white steel plates whose inner surfaces are whitened, and are attached to a square column-shaped frame (not shown). The bottom plate 43b will be described later.
The height dimension H1 (see FIG. 1) of the inspection box 43 is set to a height of about 1/4 of the distance H0 between the bottom wall 13c of the curtain plate 13 and the cage side sill 11a shown in FIG.

As shown in FIG. 3, the top plate 43a is provided with a camera mounting portion 47 on which the camera device 15 is mounted, a lighting portion 49, a power supply 51, and a breaker 53.
The camera mounting portion 47 is formed with a lens window 47a for arranging the lens 7a of the camera device 15. The lens window 47a is a rectangular hole, and positioning portions 47b for positioning the camera device 15 are provided on the left and right sides of the rectangular hole. The positioning portion 47b is a hole aligned with the position of the screwing hole 24 (see FIGS. 7 and 9) formed in the base 15a of the camera device 15.
On the top plate 43a, a mounting hole 49a of the lighting unit 49 is formed at a position corresponding to the lighting unit 49.
The power supply 51 is connected to the lighting unit 49 to supply electric power for lighting, and is provided with a cable (not shown) connected to the camera device 15.
The breaker 53 is a breaker for the power supply 51.

As shown in FIG. 2, the bottom plate 43b of the inspection box 43 is provided with a display unit 55 on the inner surface of the box, which is photographed by the camera 7 of the camera device 15 to be inspected.
The display unit 55 forms an image composed of a plurality of black circles 57. The image has a first row 57a and a second row 57b in which black circles 57 are arranged in a straight row at predetermined intervals, and the first row 57a and the second row 57b are adjacent parallel rows. There is.
The widths and spacings between the first row 57a and the second row 57b are provided corresponding to the landing side sill 9a and the cage side sill 11a shown in FIG. 5, and are formed at a scale of approximately 1/4. ing.
Further, in FIG. 2, a predetermined number of black circles 57 from the left end of the first example 57a and the second row 57b, in this embodiment, at positions corresponding to the sixth black circle 57c, the first row 57a and the second row 57b. A central display 59 is formed at a position deviating from the center display 59. The central display 59 is a black circle having the same shape as the black circle 57 in the first row 57a and the second row 57b.
As shown in FIG. 10, the central display 59 indicates the abutting position (center of the frontage) of the opening / closing door of the camera 7 provided for the double door.

Here, the configuration of the bottom plate 43b will be described. As shown in FIG. 1, the bottom plate 43b is configured by overlapping the base 61 and the inner plate 62. One surface of the base 61 (inside the inspection box) is colored black, and the inner plate 62 is a white steel plate, and is formed by punching holes 62a corresponding to the black circles 57. As a result, as shown in FIG. 2, a black circle 57 is formed on the inner surface of the bottom plate 43b.

As shown in FIG. 1, the inspection control unit 45 is a personal computer (personal computer) and stores an inspection program for inspecting the quality of the camera 7.
The inspection program executed by the inspection control unit 45 includes a double door (see FIG. 10) and a double door (see FIG. 10) when the frontage of the door 8 (see FIGS. 10 to 12) has various dimensions for the camera 7 to be inspected. When used for either a left-sided door (see FIG. 11) or a right-sided door (see FIG. 12), the same inspection box 43 enables inspection as described below.

Here, the inspection method of the camera 7 will be described.
As shown in FIGS. 1 and 2, the camera device 15 is installed on the top plate 43a of the inspection box 43. The camera device 15 is installed by positioning a positioning portion 47b (FIG. 7) in which a screw fixing hole 24 (see FIGS. 7 and 9) formed in one end 20 and the other end 22 in the longitudinal direction of the camera device 15 is formed in the top plate 43a. 3), position the camera device 15 and screw it. As a result, the lens 7a of the camera 7 is arranged in the lens window 47a.
After that, the opening / closing lid 12 of the camera device 15 is opened, the terminal connected to the inspection control unit 45 is connected, the captured image of the camera 7 is transmitted to the inspection control unit 45, and the inspection control unit 45 executes the inspection program. To do.
On the other hand, the lighting unit 49 is turned on to illuminate the inside of the inspection box 43.

In the inspection program, when the camera 7 is a double door (see FIG. 10), as shown in FIG. 2, a predetermined number of the left and right sides of the first row 57a and the second row 57b are centered on the center display 59. For example, it is determined whether or not the image (OK image) signals of the image regions M1 and M2 including five black circles 57 on the left and right are included.
If an OK image is included, a non-defective product (OK) is displayed. The inspection control unit 45 may display the characters "OK" or "non-defective product", or may emit a predetermined sound.
If the OK image is not included, a defective product (NG) is displayed.
As shown in FIG. 4, when the OK image is further included, the X (column direction of the first row 57a and the second row 57b) and the Y direction (in the row direction of the first row 57a and the second row 57b) with respect to the reference XY coordinates (X0, Y0) 65. The amount of deviation (X1, Y1) of the coordinates of Y (in the column direction of the center display mark) is calculated and held as data of camera characteristics, or is given to the image processing unit 35 of the camera device 15 as a correction value.

When the camera 7 is for a left-sided door (see FIG. 11), in the first row 57a and the second row 57b shown in FIG. 2, a predetermined number, for example, the center display 59 is displayed to the right from the position of the center display 59. It is determined whether or not the image (OK image) of the image area M3 of the 10 black circles 57 to the right from the black circle 57 at the position is included. The display of the inspection result and the correction of the XY coordinates are the same as in the case of the double door described above.
When the camera 7 is for a right-sided door (see FIG. 12), the same camera device 15 is used in the present embodiment, and the left-sided door (see FIG. 11) is used when installed on the curtain plate 13. Since one end 20 of the base 15a is aligned with the end of the curtain plate 13 and the distance L1 from the end of the curtain plate 13 to the camera 7 is the same, the left side opening (FIG. (Refer to 11) It suffices to inspect in the same way as the camera for the door. That is, also in this case, in the first row 57a and the second row 57b shown in FIG. 2, the image (OK image) of the image region M3 of 10 black circles 57 to the right from the black circle 57 at the position of the center display 59 is included. Judge whether or not. The display of the inspection result and the correction of the XY coordinates are the same as in the case of the double door described above.

Next, the operation and effect of the inspection device for the elevator camera according to the present embodiment will be described.
As shown in FIG. 2, the inspection control unit 45 receives the image signal of the display unit 55 taken by the camera 7 and determines whether or not the image signal includes a predetermined area of the display unit 55. Even if the frontage size of the basket is different, the quality (OK or NG) of the camera 7 can be determined by the same inspection device.
The display unit 55 is formed on the inner surface of the bottom plate 43b of the light-shielded inspection box 43, and the illumination unit 49 illuminates the inside of the inspection box 43 for shooting. Therefore, the influence of the external light (disturbance) of the inspection box 43 is affected. I don't receive it.

Since the display unit 55 is composed of a plurality of black circles (images) 57 arranged at predetermined intervals and the inspection control unit 45 is configured to count the plurality of black circles (images) 57, the inspection control unit 45 can be controlled. It's simple.
The black circles (images) 57 of the display unit 55 are all images having the same shape, and are arranged in parallel in the first row 57a and the second row 57b corresponding to the landing side sill 9a and the boarding side sill 11a. Therefore, it is possible to inspect the area corresponding to the camera image of the area extending over the basket 5 and the landing 3.
Since the central display 59 is formed at a position outside the first row 57a and the second row 57b, the display unit 55 is a simple display and has a double door, a left single door, and a right single door type. It is possible to inspect the quality of the camera 7 corresponding to the above.
In the inspection box 43, the image of the display unit 55 has black circles 57 with respect to the surrounding white, so the contrast is clear and easy to detect.
Since the bottom plate 43b is formed by superimposing the inner plate 62 punched into a predetermined shape on the base 61 whose surface is colored in a predetermined color, the black circle 57 can be easily formed.
As shown in FIG. 4, the inspection control unit 45 has standard XY coordinates (X0, Y0) 65, compares the captured image with the standard XY image, and determines the deviation of the XY coordinates. Since the calculation is performed as correction values (X1, Y1), the camera 7 can be easily corrected.
Since the inspection box 43 is formed by reducing the distance between the curtain plate 13 of the cage 5 and the cage side sill 11a to a predetermined ratio, the inspection box 43 can be made smaller.

The embodiments described above are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. The embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.
For example, the image of the display unit 55 is not limited to the black circle 57, and may be green or red, or may have another shape such as a triangle or a square. Further, the number of images 57 on the display unit 55 may be larger or smaller than the number shown in FIG. 2, and is not limited to the number shown in the examples.
Although the camera device 15 is placed in the inspection box 43 as it is to determine the quality of the camera 7, only the camera 7 may be attached to the inspection box 43 for inspection.
The bottom plate 43b of the inspection box 43 is formed by superimposing a colored base 61 and an inner plate 62 punched into a predetermined shape, but the present invention is not limited to this, and an image (black circle, etc.) 57 of a predetermined shape is drawn on one plate. Is also good.
The color of the inner plate 62 is not limited to white, and may be a color that gives a contrast such as red or green when superposed on the colored base 61, or a stainless steel color that the sheet metal before coloring has.
The color of the side plate 43c is not limited to white, but may be another color such as yellow or the stainless steel color of the sheet metal.
The illumination unit 49 is not limited to a round shape in a plan view, and may have another shape such as a rectangle or an ellipse.

1 ... Elevator, 5 ... Cage, 7 ... Camera, 41 ... Camera inspection device, 43 ... Inspection box, 45 ... Inspection control unit, 47 Camera mounting unit, 49 ... Lighting unit, 55 ... Display unit, 57 ... Black circle , 57a ... 1st row, 57b ... 2nd row, 59 ... center display, 61 ... base, 62 ... punching plate, 65 ... reference XY coordinates.

Claims (9)

It is an inspection device that inspects the elevator camera installed on the curtain plate of the basket, and has an inspection box that shields the top plate, the bottom plate, and the space between the top plate and the bottom plate, and an inspection control unit.
The inspection box has a camera mounting portion on which the camera is mounted on the top plate, a lighting portion that illuminates the inside of the inspection box, and a display portion provided on the inner surface of the box of the bottom plate.
The inspection control unit is an inspection device for an elevator camera that receives an image signal of the display unit taken by the camera and determines whether or not the image signal of a predetermined region is included. The display unit arranges a plurality of images arranged at predetermined intervals in a row, and the inspection control unit counts the number of images in the row to include an image signal in a predetermined region. The inspection device for an elevator camera according to claim 1. The inspection device for an elevator camera according to claim 2, wherein the images on the display unit are all images having the same shape and are arranged in two rows in parallel. The inspection device for an elevator camera according to claim 3, wherein the display unit forms the same image as the image at a position indicating the center of the row at a position outside the row. The inspection device for an elevator camera according to any one of claims 2 to 4, wherein the image is a black circle and the background of the image is white. The bottom plate is a colored plate colored surface in a predetermined color, the colored plate on Cascade arrangement has been provided and the image shape punched cutting die and of claims 2-5, which consists of The inspection device for an elevator camera according to any one of the items. When the elevator door type is the center-opening type of the elevator cameras used for center-opening or one-sided opening, the inspection control unit has a predetermined number on both sides from the position of the image indicating the center of the row. The inspection device for an elevator camera according to claim 4, wherein the image is counted, and in the case of the one-sided opening type, a predetermined number of images are counted from the images located at one end of the row. The inspection box is formed by reducing the distance between the top plate and the bottom plate to a predetermined ratio corresponding to the distance between the curtain plate and the sill of the basket. 7. The elevator camera inspection device according to any one of 7.
Reveter. The inspection control unit has XY coordinates of the reference image, compares the captured image with the reference image, and calculates the deviation of the XY coordinates as a correction value. The inspection device for the elevator camera described in item 1.

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