JPH04277181A - Elevator monitoring device - Google Patents

Abstract

PURPOSE:To reduce a monitoring space by integrally incorporating an inter- phone system with a display which is commonly used as an elevator monitoring display and a burglar monitor so as to eliminate a conventional problem inherent to a conventional monitor device which is disadvantageous in price and handling since an inter-phone system, an elevator monitor display and a cage burglar camera monitor are separatately incorporated. CONSTITUTION:A monitor device incorporating an inter-phone system, a flat display, a display controller and a video switcher, can display on its one and the same display an image from a cage burglar monitor camera and an image to be monitored, swithingly, thereby it is possible to make the monitor panel miniature.

Description

[Detailed description of the invention]

[Object of the invention]

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator car monitoring system.

0003

2. Description of the Related Art Conventional monitoring devices display the operation, failure, direction, position, etc. of a car by lighting LEDs or lamps attached to a panel. With such monitoring equipment, if the number of elevators, service floors, or other specifications changed, the panels had to be reviewed and rebuilt. Therefore, recently, monitoring devices that can flexibly change the display format using a flat display or the like have been manufactured.

[0004] Furthermore, crime in cars has been increasing in residential buildings, and in order to prevent crime, a security camera has been installed inside the car and images inside the car are monitored in a monitoring room to prevent crime.

[0005]

[Problem to be Solved by the Invention] However, installing a monitor for a security camera requires extra cost, and moreover, it is necessary to consider where to place it in a narrow monitoring room. Also,
Even if a monitor was installed, there was no need to look at it if there was no risk of crime, so there were cases where monitors got tired of the monotonous screen and did not monitor it faithfully.

Therefore, in the present invention, the functions of each device are collected,
By providing a compact and highly functional monitoring device with the goal of making the device smaller, easier to handle, and easier to monitor, we aim to prevent crime inside the elevator while monitoring the elevator.
The purpose is to ensure the safety of passengers.

[Configuration of the invention]

[0008]

[Means for Solving the Problems] The monitoring device of the present invention incorporates an intercom receiver, a flat display that also serves as a monitoring device and a security camera monitor, and a display controller composed of a microcomputer, etc., and integrates it with an in-car security camera. is connected to the video input interface with a coaxial cable, the control panel is connected to the monitoring signal input interface with a transmission cable, the in-car interphone is connected with a signal line, and the emergency call button is connected with a digital input using a normal signal line. Connect to and configure.

[0009]

[Operation] Under normal conditions, the display controller inputs the elevator status signal from the control panel and displays it dynamically on the display.When the emergency call button is pressed inside the car, it calls the intercom and displays the security camera inside the car. Display images from. At this time, the superimpose function of the display controller is used to display the monitor on a portion of the monitoring display screen. In this way, the status inside the car and the status of the elevator can be viewed at the same time while having a conversation over the intercom.

0010

Embodiments The present invention will be explained based on embodiments shown in FIGS. 1 to 3.

FIG. 1 is a system configuration diagram of an elevator monitoring device. Further, FIG. 2 is a block diagram illustrating the display controller section of the present invention in detail.

The monitoring device 1 is roughly divided into an intercom section and a display controller section.

That is, a monitoring signal input interface 2,
A display controller 5 consisting of a video input interface and a digital input device 4, a display 6,
Display screen selection switch button 7, interphone receiver 8, interphone channel selection button 9, interphone controller 10
, etc.

The display 6 is a 640 dot x 400 dot liquid crystal flat display, 640 dot x 20
It consists of a 0-dot EL (electroluminescence) display, a 640-dot x 400-dot plasma display, a 128-dot x 128-dot color liquid crystal display, etc. The display controller 5 is composed of a microcomputer or the like and can control the display on the display, and details are shown in FIG. 2.

[0015] The CPU 24 is a central processing unit 16
Bit microcomputers, etc. Display controller, etc., rewritable memory RAM23
, read-only memory ROM22, video RAM21
, digital input DI 4, control panel interface 2, and video input are connected by a bus line of the CPU 24, and can be input/output by a program written in the ROM. Furthermore, the video interface 3 enables a superimpose function to project an image on a part of the display by connecting it to a VRAM. The VRAM 21 and the display controller are connected by a bus line, and the graphic screen and images from the camera are displayed on the flat display 6.

On the other hand, the in-car interphone speaker 12
, an in-car interphone microphone 11, and an emergency call button 14 are attached to the car operation panel and connected to the interphone receiver of the monitoring device 1 by an interphone signal line.

The in-car security camera 15 is attached to the upper part of the side of the car, and is connected to the video input interface 3 of the monitoring device 1 via a coaxial cable 16 via a tail cord.

The elevator control panel 20 issues status signals such as elevator operation failures, and is connected to the monitoring signal input interface 2 of the monitoring device 1 via the transmission cable 17. Elevator status signals such as elevator operation, failure, car direction, car position, etc. are generated from the elevator control panel 20 and transmitted to the monitoring signal interface 2 via time-division serial transmission via the transmission cable 17, and then transmitted to the display controller 5. V in response to the monitoring signal
The data is written to the RAM and an elevator monitoring display is displayed on the display 6 as shown in the lower left part of FIG. Normally, only the elevator monitoring display is displayed, but once a failure occurs, a guidance display at the time of failure is automatically displayed on the display 6.

In the present invention, the superimpose function of the display controller is used to create a multi-screen, but a video switcher is used to switch between the elevator monitoring display screen and the car security camera monitor screen. It may also be a monitoring device that displays a display screen and switches to an in-car security camera monitor when an emergency call button is pushed inside the car.

[0020]

[Effects of the Invention] According to the present invention, a device for monitoring images from an in-car security camera can also be used as an elevator monitoring display screen, eliminating the need for a special monitoring device and requiring no installation space. . Therefore, a compact monitoring device can be provided, which will also help popularize security cameras.

Furthermore, since the elevator monitoring display and the in-car camera image monitor can be viewed at the same time, the user can communicate with passengers in the car via the intercom while grasping the status of the elevator car position, etc., and can calmly deal with abnormalities.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of a monitoring device according to the present invention;

[Figure 2] Figure 1
Partial detailed configuration diagram of

FIG. 3 is an explanatory diagram of how to use the display.

[Explanation of symbols]

6 Display
8 Intercom receiver 9 Intercom channel selection button 10
intercom controller

Claims (1)

[Claims] 1. An elevator monitoring device comprising: an intercom connected to the inside of the car; a display for displaying the status of the inside of the car; and means for monitoring an image taken by a camera showing the inside of the car on the display.