JPH05173490A - Display device - Google Patents

Abstract

PURPOSE:To terminal the changing operation of a picture signal for plural picture generators in a short time by inputting picture editing data into respective picture generators form a single data input/output device through the data circuits connected in common to respective picture generators. CONSTITUTION:A plant state signal indicating, the state of the plant is generated by a computer 7 and supplied to each picture generator 8 provided in the same casing 6 as a video projector 1 through communication equipments 5a, 5b. The plant state signal is received by the picture generator 8, the corresponding picture signal is generated and outputted to the video projector 1. The picture signal is received by the video projector 1 and the plant state is displayed on a screen 2. A LAN controller is incorporated in each picture generator, the generated picture signal is added or changed as necessary when the picture signal editing data is received from the data input/output device 10 through the LAN cable 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for projecting and displaying various plant states and the like on a screen by individual video projectors.

[0002]

2. Description of the Related Art FIG. 2 is a block diagram of a conventional display device.
In the figure, 1 is a plurality of video projectors for projecting the state of various plants (not shown) on a screen described later, 2 is a screen for displaying the image projected from the corresponding video projector 1, and 3 is a screen. Is connected to a corresponding video projector 1, and an image signal generator for outputting a signal for displaying an image signal (a character indicating a state of a plant, a character signal, etc.) to the video projector 1, and 4 is a corresponding image signal generator. The data input / output device 5a connected to the device 3 for inputting / outputting data for adding or changing the image signal output by the image signal generating device 3 is provided in the corresponding image signal generating device 3, and the above-mentioned image A communication device for receiving a plant status signal for obtaining a signal.

The video projector 1, the screen 2 and the like are housed in the same housing 6. Next, 7 is a computer, which corresponds to the communication device 5a of the image signal generator 3.
The communication device 5b for transmitting the above-mentioned plant status signal is provided.

The conventional display device is constructed as described above, and its operation will be described below. In the conventional display device, the computer 7 sends the plant status signal to the communication device 5b.
Is transmitted to the corresponding communication device 5a of the image signal generating device 3 through a predetermined communication line.

Each image signal generator 3 to which the plant state signal is input generates an image signal based on the plant state signal and outputs it to the corresponding video projector 1.

The video projector 1 receives the image signal,
An image showing the plant state is projected and displayed on the screen 2. Further, the image signal generator 3 can arbitrarily add or change the generated image signal by the data input / output device 4 connected thereto.

[0007]

Since the conventional display device is provided with a data input / output device for editing the image signal for each image signal generating device, when the number of image signal generating devices is large, each image signal is generated. There is a problem in that it takes time and labor to change the data for the generator, and the display device becomes large in size.

The present invention has been made in order to solve such a problem, and in spite of the increase in the number of image signal generating devices, the image signal changing work for each image signal generating device can be performed in a short time. The purpose is to obtain a display device that can be terminated at.

[0009]

A display device according to the present invention is connected to each of a plurality of video projectors and generates an image signal for displaying the state from a plant state signal representing the state of the plant, Also, data which is commonly connected to a corresponding image signal generating device for outputting to the video projector and a plurality of these image signal generating devices through a data line, and which inputs / outputs image signal editing data to / from each image generating device. And an input / output device.

[0010]

According to the present invention, since data for image signal editing is input to each image signal generating device from a single data input / output device via a data line commonly connected to each image signal generating device, a plurality of image signal generating devices are provided. The data change between the image signal generators on the table is completed in a short time.

[0011]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a display device of the present invention. In the figure, the same reference numerals as those in FIG. 2 indicate the same or corresponding portions. In the figure, 8 is a local area network (LAN)
An image signal generator 9 having a built-in control device is commonly connected to each image signal generator 8, and a data line for inputting and outputting image signal editing data, for example, a LAN cable, 10 is connected to the LAN cable 9, and a LAN A data input / output device which has a control device therein and inputs / outputs image signal editing data to / from each image signal generating device 8 is shown.

Next, the operation of the first embodiment configured as described above will be described. First, a computer 7 generates a plant state signal indicating a plant state and supplies it to each image signal generator 8 installed in the same housing 6 as the video projector 1 via the communication devices 5b and 5a.

The image signal generator 8 receives this plant state signal, generates a corresponding image signal, and outputs it to the video projector 1. The video projector 1 receives the image signal and displays the plant state on the screen 2 as an image.

Further, since each image signal generator 8 has a built-in LAN controller, the data input / output device 10
When the image signal editing data is received via the LAN cable 9, the image signal generated is added or changed as necessary.

Therefore, a single data input / output device 10 can change or add image signals to a plurality of image signal generators 8.

Although the image signal generator 8 is used in the above embodiment, the same effect can be expected by using an engineering workstation (not shown) with a built-in LAN controller instead of the image signal generator 8.

[0017]

As described above, according to the present invention, a plurality of image signal generators are commonly connected through a predetermined data line, and data for image signal editing is input / output to / from each image signal generator. Since one data input / output device is provided, it is possible to easily add and change a large number of image signals regardless of the increase in the number of image signal generating devices.

[Brief description of drawings]

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

FIG. 2 is a configuration diagram showing a conventional display device.

[Explanation of symbols]

 1 video projector 8 image signal generator 9 LAN cable 10 data input / output device

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[Procedure amendment]

[Submission date] October 30, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

The conventional display device is constructed as described above, and its operation will be described below. In the conventional display device, the computer 7 sends the plant status signal to the communication device 5b.
Is transmitted to the communication device 5a of the corresponding image signal generating device 3 through a predetermined communication line .

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction content]

[0005] plant state signal is the image signal generating device is input 3, an image signal <br/> generated based on the plant state signal, and outputs the corresponding video projector 1.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

The video projector 1 receives the image signal,
An image showing the plant state is projected and displayed on the screen line 2. Further, the image signal generating device 3, the data input-output device 4 connected thereto, optionally adding an image signal generated can be changed.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

[0009]

A display apparatus according to the present invention is connected to each of a plurality of video projectors, generates an image for displaying the state from a plant state signal indicating the state of the plant, and an image signal generating device for outputting to the corresponding previous SL video projectors, is commonly connected via a data line to these plural image signal generating apparatus, to input and output data of the image signal editing to the respective image signal generating device A data input / output device is provided.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction content]

Further, since each image signal generator 8 has a built-in LAN controller, the data input / output device 10
If via the LAN cable 9 receives data of the image signal editing, adding image signals generated as necessary, some have <br/> make changes.

Claims (1)

[Claims] 1. An image signal generator connected to each of a plurality of video projectors, for generating an image signal for displaying the state from a plant state signal indicating the state of the plant and outputting the image signal to the corresponding video projector. And a data input / output device that is commonly connected to the plurality of image signal generating devices via a data line and that inputs / outputs image signal editing data to / from each of the image generating devices. Display device.