CN111717761A

CN111717761A - Elevator with a movable elevator car

Info

Publication number: CN111717761A
Application number: CN201911178400.0A
Authority: CN
Inventors: 郑国龙; 西田岳人
Original assignee: Toshiba Elevator Co Ltd
Current assignee: Toshiba Elevator and Building Systems Corp
Priority date: 2019-03-20
Filing date: 2019-11-27
Publication date: 2020-09-29
Anticipated expiration: 2039-11-27
Also published as: JP2020152512A; JP6702580B1; CN111717761B; SG10201911281YA

Abstract

Provided is an elevator in which a camera can be easily installed. An elevator (1) comprises: a curtain plate (13) which is arranged above a door device (9) of the cage (5) and has an outer wall (13a) facing the landing side, an inner wall (13b) facing the inner side of the cage, and a bottom wall (13c) connecting the outer wall and the inner wall and provided with a window part (13 d); and a camera device (15) which is provided above the window section and which photographs the landing (3) from the window section in a state where the door (8) of the door device (9) is opened. The camera device has a camera board (19) on which a camera (7) is mounted, an image processing unit (35), and an interface unit (31) in a housing (16), the housing has a base (15a) to which the camera board and the units are fixed, a lens hole (29) in which a lens (7a) of the camera is disposed is formed in the base, and a center (29a) of the lens hole is located at a center in a width direction (W) of the base (15a) and is located at an eccentric position in a length direction (L).

Description

Elevator with a movable elevator car

This application is based on japanese patent application 2019-052274 (application date 3/20 of 2019), the entire contents of which are incorporated herein by reference, in the interest of priority.

Technical Field

An embodiment of the invention relates to an elevator which is provided with a camera for shooting the movement of a person using the elevator in a car.

Background

A technique is known in which a camera is provided on a curtain plate (a door lintel plate) provided above an elevator car to photograph the movement of a person using the elevator.

Since the camera is connected to a separately provided control device by wiring, and the control device processes the image pickup signal of the camera, the arrangement is troublesome.

Disclosure of Invention

The problem to be solved by the present invention is to provide an elevator in which a camera can be easily installed.

The elevator that embodiment relates to includes: a curtain plate disposed above a door device of a car, and having an outer wall facing a landing side, an inner wall facing an inner side of the car, and a bottom wall connecting the outer wall and the inner wall and provided with a window portion; and a camera device provided at an upper portion of the window portion, the camera device taking an image of the landing from the window portion in a state where a door of the door device is opened, the camera device including a camera board on which a camera is mounted, an image processing unit, and an interface unit in a housing, the housing including a base to which the camera board and the units are fixed, the base having formed thereon a lens hole in which a lens of the camera is disposed, a center of the lens hole being located at a center in a width direction of the base and at a position eccentric in a longitudinal direction.

Drawings

Fig. 1 is a vertical cross section showing a schematic structure of an elevator according to a first embodiment.

Fig. 2 is a perspective view of the elevator shown in fig. 1 viewed from the inside of the car.

Fig. 3 is a longitudinal sectional view of a curtain board on which a camera device is mounted.

Fig. 4 is a perspective view showing a schematic appearance of the camera device.

Fig. 5 is a perspective view of the camera device shown in fig. 4 with a cover removed.

Fig. 6 is a perspective view of the camera device shown in fig. 5 with the interface unit removed, and is a perspective view viewed from a direction opposite to that of fig. 6.

Fig. 7 is a plan view of the base to which the camera substrate is fixed.

Fig. 8 is a perspective view of the base as viewed from above.

Fig. 9 is a perspective view of the base as viewed from below.

Fig. 10 is a perspective view of the car with the left side single-open door device to which the camera device shown in fig. 4 is attached, as viewed from the inside of the car.

Fig. 11 is a perspective view of the car with the right side single-open door device to which the camera device shown in fig. 4 is attached, as viewed from the inside of the car.

Detailed Description

Hereinafter, an elevator 1 according to an embodiment will be described with reference to the drawings. As shown in fig. 1, an elevator 1 includes a car 5 that is on a level at a landing 3 of an arbitrary floor. For convenience of description, the car may be referred to as an "inner side" and the landing side may be referred to as an "outer side" in the present specification. In addition, "up" and "down" are defined with reference to the direction in which gravity acts.

The elevator 1 determines the movement of a person in the vicinity of the landing 3 based on video information acquired by the camera 7 (see fig. 3), and controls the opening and closing of the door device 9 on the landing 3 side and the door device 11 on the car 5 side. The range indicated by the chain line a in fig. 1 illustrates the angle of view of the camera 7. As shown in fig. 2, in the elevator 1 of this embodiment, the

doors

8 and 8 of the

door devices

9 and 11 are double-acting doors.

As shown in fig. 1 and 2, a curtain plate 13 is provided on a door device 11 of the car 5, and a camera device 15 is provided on the curtain plate 13.

As shown in fig. 3, the curtain plate 13 has: an outer wall 13a facing the landing side, an inner wall 13b facing the inside of the car 5, and a bottom wall 13c connecting the outer wall 13a and the inner wall 13b, and a camera device 15 is provided on the bottom wall 13 c.

A window portion 13d is provided in the bottom wall 13c at a collision position when the door ends of the left and right doors 8, 8 (see fig. 2) are closed. The window portion 13d is formed by fitting a transparent resin material 17 into the through hole.

The height H1 at the upper end of the outer wall 13a is a dimension lower than the position of a light window 14 (described later) of the camera device 15.

As shown in fig. 4, the camera device 15 includes a base 15a, a first side cover 15b, and a second side cover 15 c. The housing 16 is formed by a base 15a, one side cover 15b, and the other side cover 15 c. Further, provided on the upper portion of the one-side cover 15b is a switch cover 12 for connecting terminals of an external device to a connector 37 (described later). A lighting window 14 is provided on a side portion of the one side cover 15b, and the lighting window 14 is lit when the camera device 15 is operated.

As shown in fig. 5 and 6, the base 15a is provided with a camera substrate 19 (see fig. 6), an image processing unit 35, and an interface unit 31.

Here, the camera board 19 and the fixing portion thereof will be explained.

As shown in fig. 3, the camera 7 having the lens 7a facing downward is mounted on the lower surface of the camera substrate 19.

As shown in fig. 7, the camera board 19 is formed in a rectangular shape in plan view, and includes: a pair of first side corner portions 19a, a pair of second side corner portions 19b, and a pair of side portions 19c between the first side corner portions 19a and the second side corner portions 19 b. The one

corner portions

19a and 19a are curved in a concave shape along the shape of a step portion (described later) of the corner support portion 21 (see B in fig. 7). Fig. 7B shows one corner portion 19a of the camera board 19 after the fastener 25 is removed, and fig. 7C shows the side support portion 23 after the fastener 25 is removed.

As shown in fig. 6, the camera board 19 is fixed to a pair of

corner support portions

21, 21 and a pair of

side support portions

23, 23 standing on the base 15a by fasteners 25 retained from above, respectively. The fastener 25 is, for example, a screw or a bolt. Further, in the base 15a,

contact portions

27, 27 are provided on the opposite side of the pair of

corner support portions

21, 21 with respect to the pair of side support portions 23, and the

contact portions

27, 27 are brought into contact with the

other corner portions

19b, 19b of the camera board 19.

As shown in fig. 8, the corner support portions 21 and the

side support portions

23 and 23 are tubular bodies protruding from the base 15a, and are integrally formed with the base 15 a.

At the distal ends of the pair of corner supports 21, stepped portions 21a are formed on the side surfaces facing each other. The stepped portion 21a is formed by being recessed from the tip end of each corner support portion 21, and has a fan shape in plan view (see fig. 7). In the present embodiment, the fan shape is substantially 90 degrees.

The XY direction of the camera board 19 is positioned by a dimension X1 between the

ends

26 and 26 in the longitudinal direction at the step portion 21a opposed to each other between the pair of corner support portions 21 and a dimension Y1 between the end 30 in the width direction at the step portion 21a of one of the corner support portions 21 and the abutting portion 27. Further, the height direction (Z direction) is positioned by a dimension Z1 between the inner surface 28 of the base 15a and the bottom surfaces 24 of the step portions 21a of the pair of

corner support portions

21, 21 and the bottom surfaces 24 of the step portions 23a of the pair of

side support portions

23, 23.

The depth of each

step portion

21a, 23a is smaller than the thickness of the camera substrate 19.

As shown in fig. 7, the center-to-center distance M between the pair of

corner support portions

21, 21 is different from the center-to-center distance N between the pair of

side support portions

23, 23. Specifically, the interval N is greater than the interval M. Thus, the shape formed by the pair of

corner support portions

21, 21 and the pair of

side support portions

23, 23 is trapezoidal. The difference between the interval N and the interval M is caused by the relationship in which the corner supports 21, 21 support the one-

side corners

19a, 19a of the camera board 19 and the pair of side supports 23, 23 support the side 19c of the camera board 19.

Next, the lens hole 29 in which the lens 7a of the camera 7 is disposed in the base 15a will be described.

As shown in fig. 8 and 9, a lens hole 29 is formed in the base 15a in accordance with the mounting position of the camera board 19. As shown in fig. 9, the center 29a of the lens hole 29 is located at its central position W/2 in the width dimension W of the base 15 a. The center 29a of the lens hole 29 is eccentric with respect to the longitudinal direction L of the base 15a, and a dimension L1 from the center 29a of the lens hole 29 to the one longitudinal end 20 is shorter than a dimension L2 to the other longitudinal end 22.

When the camera device 15 is installed on the screen 13 and the door is opened on one side, the dimension L1 is set to a dimension (predetermined dimension) such that the lens hole 29 is disposed at an appropriate position with respect to the door frame of the door when the one end 20 of the base 15a on the camera device 15 is aligned with the end of the screen 13.

Next, the image processing unit 35 and the interface unit 31 disposed in the camera device 15 will be described. As shown in fig. 5, the image processing unit 35 has a circuit board 35a and various modules 36 provided on the circuit board 35a, and the interface unit 31 has a circuit board 31a and various modules 36 provided on the circuit board 31 a.

In the image processing unit 35, a surface of a circuit board 35a is vertically mounted on a base 15a, and a connector 37 is provided at an upper end portion. As shown in fig. 6, an auxiliary member 39 is mounted on the rear surface of the circuit board 35 a. The connector 37 is a member to which a USB memory or other terminals used by an operator are connected at the time of maintenance and repair.

The image processing unit 35 receives an input/output signal of the camera 7 (see fig. 3) and performs image processing, and the processed image is transmitted to an elevator system that controls elevator driving via the interface unit 31.

In the interface unit 31, a surface of the circuit board 31a is mounted so as to extend over the camera board 19 and the back side of the image processing unit 35 in parallel with the inner surface 28 (see fig. 8) of the base 15 a. The interface unit 31 communicates with the elevator system, transmits data or signals received from the elevator system to the image processing unit 35, and transmits data or signals received from the image processing unit 35 to the elevator system. Further, a light emitting element 34 is provided on the circuit board 31a at a position corresponding to the lighting window 14, and is lighted when the image processing unit 31 is operated.

The assembly and arrangement of the camera device 15 will be explained.

As shown in fig. 7 and 8, in the assembly of the camera device 15, one

side corner portions

19a and 19a (see fig. 7) of the camera substrate 19 are disposed on the respective step portions 21a of the pair of

corner support portions

21 and 21, the opposing

side portions

19c and 19c of the camera substrate 19 are disposed on the respective step portions 23a of the pair of

side support portions

23 and 23, and the other

side corner portions

19b and 19b are disposed so as to abut on the abutting

portions

27 and 27 on the base 15 a.

Next, as shown in fig. 6, fasteners 25 are attached to the corner supports 21, 21 and the side supports 23, 23 from above, and the corresponding one-

side corner portions

19a, 19a and side portion 19c of the corresponding camera board 19 are fastened and fixed by a head 25a of the fastener 25 (see fig. 7).

Thereafter, as shown in fig. 6, the auxiliary member 39 is attached to the circuit board 35a of the image processing unit 35, and the auxiliary member 39 is fixed to the auxiliary member support portion 42 of the base 15a with the surface of the circuit board 35a being placed on top of it by the fastener 44.

Next, as shown in fig. 5, the surface of the circuit board 31a of the interface unit 31 is placed on a board support portion 39 (see fig. 8) and a board support portion 45 (see fig. 8) integrally formed with the base 15a in a horizontal manner above the camera board 19, and is fastened and fixed by fasteners 41, and 47 (see fig. 6).

Finally, as shown in fig. 4, one side cover 15b and the other side cover 15c are fixed to the base 15 a.

Next, the installation of the camera device 15 on the curtain plate 13 will be described.

As shown in fig. 2, when the doors of the elevator are opened in two ways, a window portion 13d (see fig. 3) is provided in a substantially central position in the opening and closing direction of the door on the bottom wall 13c of the curtain plate 13, a lens hole 29 of the camera device 15 is disposed in a butting position of the doors, and a base 15a of the camera device 15 is fixed to the bottom wall 13c of the curtain plate 13 by a fixing member such as a bolt.

As shown in fig. 10, in the case of a left-side single-opening type (a left-side door opening when viewed from the indoor side of the car), one end portion 20 (see fig. 9) which is a shorter side from the end portion in the longitudinal direction to the lens hole 29 eccentric in the longitudinal direction is set to the left, and the one end portion 20 is disposed at the left end of the curtain plate 13 and fixed by a fixing member such as a bolt. In this way, in the camera device 15, the lens hole 29 is fixed at a position spaced apart from the door end frame 51 by a predetermined dimension L1.

As shown in fig. 11, in the case of the right-side single-opening type (the right-side door is opened when viewed from the indoor side of the car), the camera device 15 is horizontally turned 180 ° relative to the case of the left-side single-opening type shown in fig. 10, one end portion 20 (see fig. 9) which is a side where the center of the lens hole 29 from the end portion in the longitudinal direction is short is set to the right, and the one end portion 20 is disposed at the right end of the curtain plate 13 and fixed by a fixing member such as a bolt. In this way, in the camera device 15, the lens hole 29 is fixed at a position spaced apart from the door end frame 51 by a predetermined dimension L1.

Next, the operation and effects of the embodiment will be described.

As shown in fig. 6, according to the above embodiment, in mounting the camera board 19 on the base 15a, the one-side corner portions (edges) 19a and 19a of the camera board 19 can be placed on the step portions 21a (see fig. 8) of the corner support portions (support portions) 21 and 21 provided on the base 15a and fixed by the fasteners 25 (see fig. 6), and therefore, the camera 7 can be easily installed. Further, since the camera board 19 does not need to be provided with an insertion hole for a fixture as in the related art, the processing is easy.

Since the camera board 19 is fastened and fixed to the corner supports (support portions) 21, 21 and the side support 23 by the head 25a of the fastener 25, the load on the camera board 19 can be reduced, and the board can be prevented from being large-sized.

As shown in fig. 7, the camera board 19 is firmly fixed to the car 5 by being supported by the

corner support portions

21, 21 of the base 15a and the one

side corner portions

19a, 19a thereof, by being supported by the side support portion 23 of the base 15a and by being fastened by the head 25a (see fig. 6) of the fastener 25.

As shown in fig. 8, the stepped portions 21a of the

corner support portions

21, 21 are fan-shaped steps in plan view formed on the side surfaces facing each other, and positioning in the XYZ direction is possible by defining the positions of the

ends

26, 26 in the X direction and the position of the end 30 in the Y direction and defining the height Z1 of the bottom surface 24 of the stepped portion 21 a. Accordingly, it is not necessary to adjust the position of the camera 7 on site when the camera is installed, and the camera board 19 can be fixed in the assembly factory, so that the work time on site can be shortened. Moreover, the replacement operation of the camera board 19 can be easily performed at the time of failure or maintenance.

As shown in fig. 7, since the dimension M between the pair of

corner support portions

21, 21 is different from the dimension N between the pair of side support portions 23, and the entire rectangular camera board 19 is formed in a trapezoidal shape, it is only necessary to arrange one of the

corner portions

19a, 19a between the corner support portions 21, 21 (upper side of the trapezoid) so as to correspond to the corner portions 21, and to arrange the camera board 19 so as to fall between the

corner support portions

21, 21 and the side support portions 23, and therefore, the camera board 19 can be easily mounted. In addition, since the camera board 19 can easily determine that the shapes of the one

side corner portions

19a and 19a are different from the shapes of the other

side corner portions

19b and 19b, and the shapes of the one

side corner portions

19a and 19a are matched with the shapes of the step portions 21a of the

corner support portions

21 and 21, it is possible to prevent an error in the mounting position.

Since the camera device 15 integrally includes the camera substrate 19 on which the camera 7 is mounted, the image processing unit 35, and the interface unit 31, the camera device 7 can be easily installed by mounting the camera device 15 on the screen 13.

As shown in fig. 9, since the center 29a of the lens hole 29 of the camera is located at the center in the width direction W of the base 15a and is located at an eccentric position in the longitudinal direction L, in the case of a left-side single-open door (left-side open door as viewed from the inside of the car) as shown in fig. 10, by setting the one end portion 20 in the longitudinal direction to the left end of the curtain plate 13, in the case of a right-side single-open door (right-side open door as viewed from the inside of the car) as shown in fig. 11, the one end portion 20 in the longitudinal direction is turned 180 ° in the longitudinal direction to the right end of the curtain plate 13, whereby the position of the lens hole 29 can be made the same on the door end side, and therefore, even if either of the left-side single-open type or the right-side single-open type can be handled, and therefore.

As shown in fig. 3, since the connector 37 provided in the image processing unit 35 is disposed above the camera device 15, when the camera device 15 is provided on the screen plate 13, connection with an external device such as a USB memory used for maintenance and inspection can be performed from above the screen plate 13, and thus connection can be easily performed.

As shown in fig. 5, since the circuit board 35a of the image processing unit 35 is placed on the upper end of the board, and the connector 37 is attached to the upper end of the board, the board 35a placed on the upper end can receive a force when an external device such as a USB memory is connected to the connector 37, and damage to the board 35a can be prevented.

The above embodiments are presented as examples and are not intended to limit the scope of the invention. These new embodiments may be implemented in various other ways, and various omissions, substitutions, and changes may be made without departing from the spirit of the invention. The embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalent scope thereof.

For example, in the above-described embodiment, the number of the side support portions 23 (see fig. 6) is not limited to 2, and may be one, 3, or 4. The

corner support portions

21 and 21 may be provided at positions for supporting the sides facing the corner support portions.

Claims

1. An elevator, comprising:

a curtain plate disposed above a door device of a car, and having an outer wall facing a landing side, an inner wall facing an inner side of the car, and a bottom wall connecting the outer wall and the inner wall and provided with a window portion;

and a camera device provided at an upper portion of the window portion, the camera device taking an image of the landing from the window portion in a state where a door of the door device is opened,

the camera device has a camera substrate on which a camera is mounted, an image processing unit, and an interface unit in a housing,

the housing has a base to which the camera board and the units are fixed, and a lens hole in which a lens of the camera is disposed is formed in the base, and the center of the lens hole is located at the center in the width direction of the base and is located at a position eccentric in the longitudinal direction.

2. The elevator according to claim 1, wherein the image processing unit is provided with a circuit board and a connector for connecting an external device, the connector being disposed at an upper portion of the housing.

3. The elevator according to claim 2, wherein the circuit board of the image processing unit is placed face-up, and the connector is mounted on an upper end of the circuit board.

4. An elevator according to any one of claims 1 to 3, wherein in the case where the door leaf is a single-sided open door leaf, the dimension from the center of the lens hole to the one end in the longitudinal direction is a lens position of a camera positioned in accordance with a door end of the door leaf when in the closed position.