JPH0930744A - Elevator system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display at the stand-by state of an elevator on the other display device in a display device for displaying environmental image signals of plural cars of an elevator system when environmental image signals are not supplied, by a simple constitution. SOLUTION: An image signal 4 and a status information 3 are outputted from VTR 2. When the image signal 4 is outputted, a control circuit 27 outputs the image signal 4 to a first display monitor 13 through a display circuit 24. When the status information 3 is outputted, the control circuit outputs a still picture at the stand-by from a still picture storage device 21 to the display circuit 24, and outputs a distribution control signal for stopping output of an image signal distributing circuit 19. Further, for other cars, control circuits 17, 18 detect the presence or absence of image signal, and outputs still pictures at the stand-by from still picture storage devices 22, 23 to display circuits 25, 26 to stop output of an image signal distributing circuit 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator system equipped with a video reproduction display device for displaying a plurality of video signals.

[0002]

2. Description of the Related Art In modern elevator systems,
To alleviate the tension between passengers or to accurately convey information to passengers, it has been proposed to install a video playback device in the cage to display environmental video and text information ( JP-A-3-182489).

In such an elevator system, a video reproducing device (for example, VTR or LD) for reproducing an environmental image.
, Etc.) cannot reproduce a regular video signal (such as a failure), in order to recognize that the video signal is not output and to not give discomfort to the person in the cage, for example, It was necessary to provide a generation circuit for generating a still image, which is a video signal called "Wait" (a video signal indicating that no video is currently displayed), separately from the above-mentioned video reproduction device.

In this method, when there are a plurality of elevator cages, it is necessary to mount a video reproducing device and a circuit for generating a still image on each cage, which is very costly. .

On the other hand, in the case of a system in which one video reproducing apparatus is configured to supply each cage with a video signal,
Since the generation circuit for generating a still image is provided with the display device provided in each cage, one of them (called a master) can detect the operation state of the video reproduction device and the video reproduction device. It is conceivable to have a function of receiving the video signal from the device and distributing it to other display devices.

According to this, when the video signal of the video reproducing device cannot be output, the master display device may generate a still image of "Wait" and distribute it to other display devices. .

However, in the above-mentioned system, since each display device operates so as to switch to a still image for information provision depending on the operating condition of the elevator, this master display device also always displays the "Wait" display still. It is not always possible to display images, so in the end "W
There is a problem that a circuit for generating a still image of "ait" must be additionally provided.

As a method different from this, each display device detects the presence or absence of a video signal from the video reproduction device, and determines that the video signal of the video reproduction device cannot be output. Can be considered.

However, some video reproducing apparatuses output the video signal of the blue back screen when the video signal is not output, so that accurate detection cannot be performed by the discrimination based on the video signal.

Further, one display device is provided with a function of detecting the operation state of the video reproduction device, and the other display device is informed that the video reproduction device cannot output a normal video signal. A method in which a communication means is provided is also conceivable, but this method requires not only a circuit as a communication means for communication between the display devices but also a communication cable.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and is simple in a display device for displaying environmental video signals of a plurality of cages of an elevator system when the environmental video signals are not supplied. It is an object of the present invention to provide an elevator system capable of displaying a standby state on another display device with a simple configuration.

[0012]

SUMMARY OF THE INVENTION The present invention provides an elevator system in which the raising and lowering operations of a plurality of elevators are controlled based on control information for moving a plurality of elevators from a starting point to a destination. An operation control means for sending operation information of each elevator cage, a display means for displaying an image installed in the elevator, and a video signal for supplying various information supplied to the display means. A video signal output means for outputting an output stop information signal when the video signal is not output, a display output means for receiving the video signal and outputting it to the display means, One of the plurality of cages, a video distribution means for distributing to the cage, a still picture storage means for storing a still picture signal indicating a state when the video signal is not output,
A still image from the still image storage means is provided in one of the cages, receives the operation information, and controls the video signal distribution means in response to the output stop information so as not to output to another cage. An elevator system, comprising: a control unit that controls to output a signal to the display unit.

Further, the present invention is an elevator system in which the raising and lowering operations of a plurality of elevators are controlled on the basis of control information for moving a plurality of elevators from a starting point to a destination. An operation control means for sending out the operation information of the cage, a display means for displaying an image installed in the cage, and an image signal for outputting various information provided to the display means and outputting the image signal. Is output, a video signal output means for outputting an output stop information signal, a display output means for receiving the video signal and outputting it to the display means, and distributing the video signal to other cages. Image distribution means, still image storage means for storing a still image signal indicating a state when the video signal is not output, and one of the plurality of cages. Receiving the line information, receiving the output stop information, controlling the video signal distribution means so as not to output to the other cage, and outputting the still image signal from the still image storage means to the display means. And a still image that is provided in a cage other than the cage in which the first control means is provided, receives the operation information, and detects the presence or absence of the transmitted video signal. An elevator system, comprising: a second control unit configured to control a still image signal from the storage unit to be output to the display unit.

[0014]

According to the present invention, with the above configuration, the video signal and the output stop information signal are output from the video signal output means, and when the video signal is output, the video signal is output to the display means. Then, when the output stop information signal is output, the still image from the still image storage means is output to the display means, and the output of the video distribution means is stopped.

The other cage detects the presence or absence of a video signal, outputs the still image from the still image storage means to the display means, and stops the output of the video distribution means.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the present invention. In this embodiment, a case where three elevators are installed will be described as an example.

First, 1 is an elevator control panel for sending operation information of each elevator cage and controlling each elevator, 2 is a VTR (video tape recorder) for transmitting various video signals, and 3 is from the VTR 2. Information output when no video signal is output, 4 to 6 are first to third video signals output from the VTR 2, and 7 to 9 are VT
First to third display devices for outputting a video signal or the like from R2, 10 to 12 are first to third display signals from each display device, and 13 to 15 are first to third display images.
Is a display monitor of.

Further, 16 to 18 are control circuits for controlling a display circuit and the like which will be described later, 19 and 20 are video signal distribution circuits which distribute a video signal from the VTR 2, and 21 to 23 store still images which will be described later. Still image storage device, 24 to 26 are display circuits for outputting display signals, 27 to 29 are display control signals from the control circuits 16 to 18, and 30 to 3
Reference numeral 2 is operation information of the first to third elevators from the elevator control panel 1, and 33 is a distribution control signal output from the control circuit 16.

Next, the operation will be described. First, the elevator control panel 1 is a first control panel that is installed in each elevator cage.
Outputs the first to third elevator operation information 30, 31, 32 to the third display device 7, 8, 9.

On the other hand, the VTR 2 outputs the first video signal 4 which is a reproduced video signal and inputs the first video signal to the display circuit 24. At this time, since the normal reproduced video signal is input from the VTR 2, the status information indicating the information that the video signal is not output is not output. Therefore, the control circuit 16 controls the display circuit 24 to display the first video signal 4
The display control signal 27 is output to control the display circuit 24 to output, and the first display signal 10 is output to display on the first monitor 13. The video signal from the VTR 2 contains various environmental video signals, advertisements, and guidance.

The first video signal 4 is input to the video signal distribution circuit 19. For the video signal distribution circuit 19, when the control circuit 16 determines from the status information 3 that the video signal is a normal video signal, the distribution control signal 33
The video signal distribution circuit 19 supplies the second video signal (the same signal as the first video signal) 5 to the second display device 8.
Then, the control circuit 17 detects whether or not there is a video signal, and if there is, outputs the display control signal 28 so as to input the second video signal 5 to the display circuit 25, The second display signal 11 is displayed on the second display monitor 14.

As the second video signal, the video signal distribution circuit 20 supplies a third video signal (the same signal as the first video signal) 6 to the third display device 9. Then, the control circuit 18 detects whether there is a video signal, and if there is, outputs a display control signal 29 so as to input the third video signal 6 to the display circuit 26, and The display signal 12 of 3 is displayed on the second display monitor 15.

Next, a case where the video signal from the VTR 2 disappears (a situation in which the video signal cannot be output when the VTR 2 rewinds the tape) will be described. In such a case, the status information 3 is input from the VTR 2, and the control circuit 16 receives the status information 3 and detects that the VTR 2 cannot output a normal video signal. A still image (for example, “Wait” is displayed) indicating that the standby state is stored in 21 is taken out, the display circuit 24 is switched from the first video signal 4 to the above-mentioned still image signal, and It is output as the display signal 10 of No. 1 and the still image is displayed on the first display monitor 13.

On the other hand, the control circuit 16 controls the distribution control signal 33.
Is output to control the video signal distribution circuit 19 to stop the distribution.

Then, the control circuits 17 and 18 of the second display device 8 and the third display device 9 detect that the video signal is not input and output the display control signals 28 and 29 to output the still image. The still image (still image of “Wait”) stored in the storage device 22, 23 is taken out, and the display circuit 25,
26 is controlled to be switched to a still image, and is displayed on the second display monitors 14 and 15.

The still image stores still images of various kinds of information other than the above, and the still images are stored according to the first to third elevator operation information 30, 31, 32 from the control panel 1. When displaying the information stored in the devices 21, 22, and 23, the “Wait” information and the VTR are displayed.
The video signal from 2 is displayed with priority.

As described above, in the normal case, the video signal from the VTR 2 is output, but the still image according to the elevator operation information is preferentially switched and displayed, but when the VTR 2 does not output the normal video signal. , Outputs a still image showing the standby state.

[0028]

According to the present invention, when the video reproducing apparatus cannot output a normal video signal, it is not necessary to separately provide a circuit for generating a still image indicating a standby state, and the still image for information provision can be displayed. Can be done without any problems.

Further, even if a communication cable for communication between the display devices is not added, a state in which a normal video signal from the video reproduction device cannot be output can be realized between the display devices easily and with a simple structure.

Furthermore, even if the video reproducing device outputs a pseudo video signal (blue back) when there is no video signal, the video signal is not output to another display device.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

[Explanation of symbols]

 1 Elevator Control Panel 2 VTR (Video Tape Recorder) 3 Status Information 4 First Video Signal 5 Second Video Signal 6 Third Video Signal 7 First Display Device 8 Second Display Device 9 Third Display device 10 First display signal 11 Second display signal 12 Third display signal 13 First display monitor 14 Second display monitor 15 Third display monitor 16 Control circuit 17 Control circuit 18 Control circuit 19 Video signal Distribution circuit 20 Video signal distribution circuit 21 Still image storage device 22 Still image storage device 23 Still image storage device 24 Display circuit 25 Display circuit 26 Display circuit 27 First display control signal 28 Second display control signal 29 Third display Control signal 30 Operation information of first elevator 31 Operation information of second elevator 32 Operation information of third elevator 33 Distribution control signal

Claims (2)

[Claims] 1. In an elevator system in which the lifting operation of a plurality of elevators is controlled based on control information for moving a plurality of elevators from a departure point to a destination, operation information of each elevator cage. The operation control means for transmitting the video, the display means for displaying the video installed in the cage, and the video signal for supplying various information supplied to the display means are output, and the video signal is output. A video signal output means for outputting an output stop information signal when there is no signal; a display output means for receiving the video signal and outputting it to the display means; and a video distribution means for distributing the video signal to another cage. A still image storage unit that stores a still image signal indicating a state when the video signal is not output; and a still image storage unit that is provided in one of the plurality of cages and stores the operation information. At the same time, receiving the output stop information, controlling the video signal distribution means so as not to output to the other cage, and controlling to output the still image signal from the still image storage means to the display means. An elevator system comprising a control means. 2. An elevator system in which the lifting operation of a plurality of elevators is controlled based on control information for moving a plurality of elevators from a starting point to a destination, operation information of each elevator cage The operation control means for transmitting the video, the display means for displaying the video installed in the cage, and the video signal for supplying various information supplied to the display means are output, and the video signal is output. A video signal output means for outputting an output stop information signal when there is no signal; a display output means for receiving the video signal and outputting it to the display means; and a video distribution means for distributing the video signal to another cage. A still image storage unit that stores a still image signal indicating a state when the video signal is not output; and a still image storage unit that is provided in one of the plurality of cages and stores the operation information. At the same time, receiving the output stop information, controlling the video signal distribution means so as not to output to the other cage, and controlling to output the still image signal from the still image storage means to the display means. The first control means and a cage other than the cage in which the first control means is provided receive the operation information and detect the presence / absence of a video signal sent to the still image storage means. And a second control means for controlling the still image signal from the control means to be output to the display means.