JP3333398B2 - Image recording device in elevator car - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image recording apparatus in an elevator car.

[0002]

2. Description of the Related Art A conventional image recording apparatus in an elevator car, in which a television camera is installed in the elevator car so that the situation inside the car can be grasped, is disclosed in Japanese Patent Laid-Open No. 59-9 / 1984.
No. 2,881, JP-A-52-133468, and JP-A-4-40080.

FIG. 7 is a cross-sectional view showing the basic structure of a conventional elevator car image recording apparatus. A car 4 controlled by a control panel 2 installed in a machine room 1 formed above the hoistway 3 is arranged so as to be able to go up and down in the hoistway 3 and is connected to a counterweight 5 in a slidable manner. A television camera 7 is installed in the car 4, and the television camera 7 is connected from the control panel 2 to a tail cord 6 wired to the car 4 through the hoistway 3, and a video line 8 is transmitted from the control panel 2. It is wired through the building to the outside management room 9 and the like. VT in the management room 9
R10 and monitor 11 are installed. Using the tail cord 6 from the control panel 2 in the machine room 1, the car 4
Power is supplied to a television camera 7 installed in the office, and a video taken by the television camera 7 is sent to an external management room 9 and the like via a tail cord 6, a control panel 2 and a video line 8 and the like. By transmitting, VTR1 installed there
The system is configured such that the status of the car 4 can be recorded and constantly monitored by the monitor 0 and the monitor 11.

[0004]

Incidentally, the above-described conventional elevator car image recording apparatus has been proposed in order to respond to the growing need for crime prevention to prevent crime in the elevator car. Older elevators installed when the security needs were low were not often designed to take into account the need for new signal lines, so the TV camera 7 was installed later in the car 4 When doing this, a complicated operation of additional wiring of the tail cord 6 and the video line 8 has to be performed. For this reason, the work cost required for wiring becomes large,
This results in an extremely expensive elevator car video recorder. In addition, the security VTR 10 is manufactured for a long period of time, so that it is manufactured to be more durable than that for general home use. However, in the event of a failure, a terminal for outputting a failure signal is provided, and a display device is attached to this terminal. To check the failure. However, if the VTR 10 is installed in the management room 9 as in the related art, it is necessary to go to the management room 9 in order to confirm whether or not a failure has occurred.

SUMMARY OF THE INVENTION An object of the present invention is to provide a video recording apparatus in a car of an elevator, which does not require an additional wiring of a tail cord and a video line, and can be easily and inexpensively attached to an existing elevator.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an elevator car equipped with a television camera for photographing the inside of an elevator car and a video deck for recording images from the television camera. In the internal video recording apparatus, the video deck is attached to a car frame above the car , and a power supply for driving the television camera is provided.

[0007] In the elevator car video recording apparatus according to the present invention, a video deck is mounted on a car frame at an upper part of a car.
In addition to the power supply for driving the TV camera, the power supply for driving the TV camera can be easily obtained from the power supply for the car at the top of the car.
Only the TV camera in the car, the drive power supply at the top of the car, and the VCR and the surroundings of the car are required, eliminating the need for any additional wiring of tail cords and video lines, making it inexpensive and easy to install It can be attached to the elevator.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a car showing an image recording apparatus in a car of an elevator according to an embodiment of the present invention. In the car 4, a television camera 18 for taking a picture of the situation in the car 4 is arranged, and this television camera 18 is located below the ceiling lighting 14 installed on the ceiling 13 of the car 4. Mounting brackets 20 fixed to side plates 12 erected on all sides of the car 4
Attached through. As the TV camera 18, a dome-shaped camera in which the TV camera is housed in a hemispherical case projecting downward is used. On the car 4, a switch power supply 21, which is a drive power supply for the TV camera 18, is provided.
A known time-lapse VTR 22 that records images taken by the television camera 18 at predetermined time intervals is installed in a dedicated dust-proof storage case 23. The storage case 23 is fixed to the car frame of the car 4 via a bracket 24 and a fixing bracket 25. Specifically, the storage case 23 is firmly below the crosshead 16 connecting the upper portions of the vertical frames 15. Fixed.

The switch power supply 21 in the storage case 23
Are wired so that power is supplied by branching off from a car power supply 17 previously installed on the car 4. In general, the driving power supply of the television camera 18 is 12 V DC, whereas the driving power supply of the switch power supply 21 and the time lapse VTR 22 in the storage case 23 is 100 V AC. 100V AC supplied to the storage case 23 from the time-lapse VTR
The power is supplied to a switch power supply 21 via a switch 22, converted to 12 V DC by the switch power supply 21, and then supplied to the television camera 18. As shown in FIG. 2 which is an enlarged view of a main part, a time lapse VTR 2 is provided near the TV camera 18 mounted in the car 4, for example, in the mounting bracket 20.
A failure indicator lamp 19, which is a display device connected to a terminal (not shown) that outputs a failure signal of No. 2, is attached. The video signal output from the television camera 18 is wired so as to be transmitted to the time-lapse VTR 22, and is also wired so that the failure display lamp 19 is turned on by a failure signal output from a terminal (not shown) of the time-lapse VTR 22.

With such a configuration, the time lapse VTR 22 is wired in advance in the storage case 23 so that power is supplied from the time lapse VTR 22 to the switch power supply 21, the time lapse VTR 22 and the television camera 18 are wired, and the car 4 When wiring work is performed so that power is supplied from the power supply 17 to the time lapse VTR 22, all wiring work is completed, and all wiring work inside and outside the car 4 is completed. This eliminates the need for conventional additional wiring of tail cords and video lines, and records the conditions inside the car 4 at predetermined minute intervals by simply performing simple installation work that requires extremely low wiring costs. become able to. As a result, the elevator car video recorder
It can be easily and inexpensively attached to an existing elevator, and when an abnormality occurs in the car 4, a video record that is a powerful proof can always be automatically secured. This is extremely effective when newly taking security measures in the car for the elevator.

Next, the relationship between the mounting positions of the television camera 18 and the ceiling lighting 14 will be described with reference to FIGS. FIG.
The television camera 18 shown in FIG. 4 is mounted below the ceiling illumination 14 in the car 4. When the TV camera 18 is mounted above the ceiling light 14, the light of the ceiling light 14 enters the lens of the TV camera 18, so that the auto iris function built in the general TV camera 18 operates. This auto iris function automatically reduces the brightness of the entire screen so that you can check the conditions of bright areas when there is a bright area in the image area. 4 is recorded on a tape of the time lapse VTR 22 with the inside of the VTR 4 darkened. For this reason, when the tape is played back, the situation in the car 4 is dark and cannot be determined. However, this can be prevented by determining the positional relationship between the television camera 18 and the ceiling lighting 14 as shown in FIGS. it can.

The television camera 18 is mounted on the side plates 12 arranged on all sides of the car 4 by mounting brackets 20 having an L-shaped cross section.
However, depending on the position of the ceiling lighting 14 and the like, it may be necessary to arrange the ceiling lighting 14 beside or above the ceiling lighting 14 as shown in FIG. In such a case, the TV camera 1
The light blocking means 30 may be arranged between the ceiling light 14 and the ceiling light 14 so that the light of the ceiling light 14 does not enter the lens of the television camera 18.

As shown in FIG. 6 which is a plan view of the car 4, the television camera 18 is mounted near a corner 27 on the far side opposite to the entrance 26 of the car 4. The center is adjusted according to the entrance 26. For this reason, the television camera 18 can capture an image when the elevator user gets into the car 4, that is, from obliquely above the front of the passenger, and can minimize the blind spot in the car 4. That is, it is conceivable to install the television camera 18 near the rear corner after the operation panel 28. However, when the elevator user enters the car 4, the operation panel 28 is operated to operate the operation panel 28. In many cases, the camera is located in front of the corner 28, and in this case, an image of the back is taken, and the vicinity 27 of the corner is more desirable. When the elevator user enters the car 4, the television camera 18 is installed above the operation panel 28 in consideration of being located in front of the operation panel 28 to operate the operation panel 28. Alternatively, an auxiliary television camera may be provided above the operation panel 28 so that the video captured alternately with the television camera 18 disposed near the corner 27 can be recorded in the time-lapse VTR 22.

The switch power supply 21 and the time lapse VTR 2
The storage case 23 in which the vehicle 2 is stored may be another mounting portion as long as the operation and structure of the car 4 are not hindered, but is fixed to the crosshead 16 via the bracket 24 as shown in FIG. . For this reason, since the car 4 and the car frame are generally connected via the anti-vibration rubber 29, the vibration of the car 4 does not affect the time-lapse VTR 22, and the car 4 is directly mounted on the ceiling of the car 4. Lapse VT caused by elevator vibration
It is possible to prevent dripping of the screen of R22. Further, since the storage case 23 is attached below the crosshead 16, even if the elevator breaks down and approaches the ceiling of the hoistway, the storage case 23 does not hit the ceiling of the hoistway.

In addition, since the failure display lamp 19 for displaying when the time-lapse VTR 22 has failed is installed in the car 4, a failure can be immediately found from inside the car 4 when using the elevator. Since a known time-lapse VTR 22 for recording images at predetermined time intervals is used as the VCR, the recording time interval for recording the situation in the car 4 can be set arbitrarily. It is possible to efficiently record the behavior of the people and things in the car 4. Furthermore, like a normal VTR deck, this time-lapse VTR 22
When the VTR tape is recorded to the end of the tape, it has a function to automatically rewind the tape and continue recording, so that the situation inside the car 4 can always be recorded and highly reliable information can be obtained. be able to. As described above, the time-lapse VTR 22 can set the video recording time interval to an arbitrary time interval and perform video recording.
The video recording period for the circumference can be quantitatively grasped in advance. For example, if an image of the television camera 18 in the car 4 is recorded at a recording time of one second, a time-lapse VTR
If the 22 tapes are for 120 minutes, 120 hours of video can be recorded, and a relatively long video recording period can be quantitatively grasped. Therefore, if the tape is changed every five days, if any crime occurs in the car 4, the video recorded on the tape can be viewed later, and the tape is overlaid and disappears. Can be prevented.

In this embodiment, the time lapse VT
The case where the failure display lamp 19 is turned on when the R22 fails is described. However, the failure display lamp 19 may be turned on when the time-lapse VTR 22 operates normally. That is, it is possible to prevent the crime occurring in the elevator car from occurring.

[0017]

As described above, the video recording apparatus in the elevator car according to the present invention has a video deck mounted on the car frame at the top of the car and a power supply for driving the television camera. The power supply for driving the TV camera can be easily obtained from the power supply for the car, and wiring work between the TV camera and the drive power supply for the upper part of the car and the VCR only need to be performed around the car. There is no need to perform any additional wiring of the video lines, and the video lines can be easily and inexpensively attached to the existing elevator. Also, generally ride
And the car frame are connected via anti-vibration rubber.
Cradle vibrations can adversely affect VCR recordings.
This can prevent the image from being drowned
it can.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a car employing an embodiment of an image recording apparatus for a car in an elevator according to the present invention.

FIG. 2 is an enlarged view of a main part of the in-car image recording apparatus of the elevator shown in FIG.

FIG. 3 is a side view showing a mounting position relationship of a television camera in a video recording device in a car of an elevator according to another embodiment of the present invention.

FIG. 4 is a side view showing an installation positional relationship of a television camera in an in-car video recording apparatus for an elevator according to still another embodiment of the present invention.

FIG. 5 is a side view showing a mounting position relationship of a television camera in an in-car video recording apparatus for an elevator according to still another embodiment of the present invention.

FIG. 6 is a plan view of the car shown in FIG. 1;

FIG. 7 is a cross-sectional view showing an elevator employing a conventional elevator image recording apparatus in a car.

[Explanation of symbols]

 Reference Signs List 4 Riding car 12 Side plate 13 Ceiling 14 Ceiling lighting 15 Vertical frame 16 Cross head 17 Car power supply 18 TV camera 19 Failure indication lamp 20 Mounting bracket 21 Switch power supply 22 Time lapse VTR 23 Storage case 24 Bracket

Continuation of front page (56) References JP-A-59-92881 (JP, A) JP-A-6-282766 (JP, A) JP-A-5-336493 (JP, A) JP-A-7-146502 (JP) , A) Jiko 5-26858 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) B66B 1/00-19/06

Claims (8)

(57) [Claims] A television camera for photographing a 1. A within car of the elevator, in-car video recording device for an elevator provided with a VCR for recording an image from the television camera, the car frame of the upper part of the car A video power supply for driving the television camera, the video recorder being mounted on the video deck. 2. The method of claim 1, wherein the bidet is
The off deck has a terminal to output a failure signal when a failure occurs.
Time lapse that can be recorded at predetermined time intervals
An elevator car video recording device, which is a VTR . 3. The method according to claim 1, wherein
The bi-camera is a hemispherical case that projects into the car.
An elevator car image recording device, characterized in that the dome type television camera is housed in a car. 4. The apparatus according to claim 2 , wherein
An L-shaped cross section for attaching the bicamera to the side plate of the car
Mounting bracket and the tie attached to the mounting bracket.
And a display device connected to the terminal of the MULPS VTR.
An in-car video recording apparatus for an elevator. 5. The method according to claim 1, wherein
The BicCamera is in a position where the entrance of the car can be photographed.
An elevator car video recording device, characterized in that it is provided . 6. The method according to claim 1, wherein
The bi-camera moves to the operation panel provided in the car.
An elevator car video recording device, characterized in that an elevator position is provided at a position where photographing is possible . 7. The method according to claim 1, wherein
The bi-camera is a lighting device provided on the ceiling of the car.
An elevator car video recorder characterized by being installed underneath . 8. The method according to claim 1, wherein
The bi-camera is a lighting device provided on the ceiling of the car.
A video recording device in a car of an elevator, comprising a light shielding means on a side .