JPS6281887A - Image display system - Google Patents

Abstract

PURPOSE:To display the images of four cameras of high quality on one display device by displaying the images of four channels simultaneously converting picture signals of high quality to those of reference system, or displaying one image of high quality independently. CONSTITUTION:Picture data image-picked up with high quality cameras 1-4 are usually converted to reference images with high quality/reference image converters 9-12 through a switch SW1 respectively, and are stored respectively at areas A-D where a memory 14 is divided into four. The store data are read out with a prescribed program by a processor 15, and four images, A-D, are displayed simultaneously on the screen of a high quality image display device 5. At such a time, when the high quality image is requested to be displayed, the switches SW1 and SW2 are switched, and the high quality image information of requested channel is selected with a selector 13, and thereby, one selected image is displayed on the high quality image display device 5.

Description

[Detailed Description of the Invention] [Previously learned] In a high-quality image monitoring system, information from a plurality of high-quality cameras is input into a memory through each high-quality/standard image converter, or a first switch that switches the input to a selector that selects the input of the memory, and a second switch that switches and outputs the output of the memory and the output of the selector to the high-quality image display device. 3- Normally, n images converted to standard images can be displayed on one high-quality image display device, and it is possible to switch to displaying one high-quality image as necessary. It is.

[Industrial application field]

The present invention provides an image display system for a high-quality image monitoring system that captures information generated in a wide area, such as viewing multiple dangerous locations in a factory at a glance, using a high-quality camera and monitors the information from a remote monitoring room. Involved in improving the method.

For example, if multiple dangerous areas in a factory are to be imaged using high-quality cameras and monitored in a remote monitoring room, they are usually monitored using standard images, but can also be monitored using high-quality images if necessary. In such cases, it is often desirable that the monitoring room be small and that the system be constructed at low cost.

[Conventional technology]

FIG. 2 is a block diagram of a conventional image display system.

In the figure, 1 to 4 are high quality cameras, and 5 to 8 are high quality image display devices.

Figure 2 is an example of capturing images using four high-quality cameras 1 to 4. In a monitoring room located far away, as shown in Figure 2,
High quality image display devices 5 to 8 corresponding to high quality cameras 1 to 4 are provided, and monitoring is performed by displaying images on these devices.

[Problem that the invention seeks to solve]

However, the above-mentioned image display method requires one high-quality image display device for one high-quality camera, so there are problems in that it requires a lot of space and that the system becomes expensive.

[Means for solving the 8 points in between] The above problem is that the information from multiple high quality cameras is
At position 4j, the first input signal is switched to be input to the memory (14) through the high-quality/standard image converter (9 to 12), respectively, or to the selector (13) for selecting four inputs. input to the switch (SWl), and the memory (
The problem is solved by the image display method of the present invention, in which the output of 14) and the output of the selector (13) are input to the high-quality image display device (5) via a second switch (SW2) that switches and outputs the output. be done.

[Effect]

According to the present invention, a high-quality image signal is converted into a standard r% system signal, and information of 4 channels can be displayed simultaneously on a high-quality image display device by dividing the screen into 1/4. Since it is possible to switch to one high-quality image display, only one high-quality image display device is required for four high-quality cameras, and the monitoring room does not require a small space, and the system can be configured at low cost. You can.

(Embodiment) FIG. 1 is a block diagram of an image display system according to an embodiment of the present invention.

9 to 12 in the figure are high-quality/standard image converters that convert a 1025-line high-quality image to a 512-line standard image; 1
3 is a selector for selecting a channel; 14 is a memory capable of storing one frame of high-quality images, that is, four frames of standard images; 15 is a processor; SW1 and SW2 are interlocked switches; The same code indicates the same function.

The case in FIG. 1 is also an example in which images are taken with four high-quality cameras 1 to 4, and the image data taken by high-quality cameras 1 to 4 is normally sent to each high-quality image via a switch SWI. - The images are converted into standard images by the standard image converters 9 to 12, and stored in areas A to D, which are divided into four areas of the memory 14, respectively.

This written data is stored in areas A and C such that one line of area A is read out, and then one line of area C is read out.
When the reading is finished, area B is read out.

The four images A to D are read out by the processor 15 having a progera l, which reads out D in the same manner as described above, and the four images A to D are displayed simultaneously on the screen of the high quality image display device 5.

If you want to see a high quality image here, switch SWI
, SW2 and select high-quality image information of a desired channel using the selector 13, one selected image can be displayed on the high-quality image display device 5.

Therefore, only one high-quality image display device is required for four high-quality cameras, making it possible to reduce the space in the monitoring room and to construct the system at low cost.

Furthermore, if there is a fractional number when making it in units of 4, it is sufficient to consider that there is a missing number and make it in units of 4. Also, if, for example, 3.4 of the 4 cameras is a standard camera, high quality By omitting the standard image converters LL and 12 and inserting a standard/high quality image converter into the line input to the selector 13, the same operation as above can be achieved.

[Effects of the Invention] As explained in detail above, according to the present invention, only one high-quality image display device is required for n high-quality cameras, the space in the monitoring room can be reduced, and the system can be made inexpensive. This has the effect of making it possible to configure.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an image display method according to an embodiment of the present invention. FIG. 2 is a block diagram of a conventional image display system. In the figure, 1 to 4 are high quality cameras, 5 to 8 are high quality image display devices; 9 to 12 are high quality/standard image converters, 13ba selector, 14 is memory, 15ba pro sensor, SWI and SW2 indicate switches. Ishiba Body Hizunome ft Torai Show Method 5Q Pronf Diagram Rod Diagram 2

Claims (1)

[Claims] When displaying information captured by a plurality of high-quality cameras on a high-quality image display device, the information from the plurality of high-quality cameras is converted into a high-quality/standard image converter ( 9 to 12) to the memory (1
4) or a selector (13) for selecting n inputs.
SW1), and via a second switch (SW2) that switches and outputs the output of the memory (14) and the output of the selector (13), inputs it to the high-quality image display device (5). An image display method characterized by: