JPH05334418A - Wide visual field simulating view field generator - Google Patents

Abstract

PURPOSE:To rapidly form a wide visual field simulating view field without requiring an expensive hardware by forming a wide visual field simulating view field video signal by synthesizing the visual field images of respective objects to be displayed. CONSTITUTION:Individual visual field image generating parts 6a to 6m generate the individual visual field images of respectively different sorts of objects (a ship, a buoy, a mountain, a building, etc.) to be displayed as picture signals to be monitored. The picture signals are inputted to respective corresponding image memories 8a to 8m in an image synthesizing part 7 and stored as image data. A video signal generator 10 receives the image data and simultaneously generates RGB video signals required to be displayed on visual field display devices 5a to 5n in each display channel. The RGB video signals are inputted to the plural display devices 5a to 5n having continuously arranged screens and displayed as a wide visual field simulating view field. Consequently, the load of display quantity can be reduced to about 1/10 of a convensional device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to generation of a wide field of view simulated field of view used for a training simulator such as a ship maneuvering simulator or an airfield control simulator which requires a wide field of view of the field of view of a ship's wheelhouse or control tower. Regarding the device.

[0002]

2. Description of the Related Art FIG. 1 is a perspective view showing a ship-training training simulator for explaining a wide-field simulated visual field generated by a wide-field simulated visual field generator.
, Each of the plurality of display devices constitutes each display channel, and one wide-view simulated visual field is generated by using all of the display channels. In FIG. 1, the display channels are set to 1a to 1j for convenience of the drawing, but the number of display channels is n (n is an arbitrary integer. The same applies hereinafter). FIG. 4 is a block diagram showing the configuration of a conventional device of this type. In FIG. 4, 2 is a simulator control computer, 3 is a visual field control calculation unit, 4a to 4n are visual field image generation units, and 5a to 5n.
n is a visual field display device.

Next, the operation of the conventional device will be described.
The visual field control calculation unit 3 inputs viewpoint information by the simulator control computer 2 and outputs it to the visual field image generation units 4a to 4n. The respective visual field image generation units 4a to 4n generate visual field images corresponding to the viewpoint information and the assigned display channels 1a to 1n, respectively, and output the visual field images to the visual field display devices 5a to 5n, respectively, for each display channel 1a to 1n. The simulated visual field is drawn individually to generate one wide visual field.

[0004]

In the conventional wide-field simulated visual field generating apparatus as described above, expensive high-speed drawing hardware is required to perform high-speed drawing such as real-time drawing by a simulator, and the apparatus is It is large and expensive. That is, in the conventional device, each field-of-view image generation unit and each field-of-view display device are connected in a one-to-one relationship, and the field-of-view control calculation unit and the subsequent units operate independently for each channel, and all the images of one display channel are It must be generated by the field-of-view image generator. Therefore, in order to use it in a simulator or the like that needs to generate images in real time, a large and high-speed view control calculation unit and a view image generation unit capable of high-speed drawing for each display channel are required. Become. Moreover, as the number of display objects increases, the drawing speed becomes slower in inverse proportion to it. That is, in each field-of-view image generation unit, for example, drawing is sequentially repeated from a display object located at a distant position, so that as the number of display objects increases, a larger number of drawing times are required, which causes a problem such as slow drawing speed. there were.

The present invention has been made in order to solve the above problems, and provides a wide visual field simulated visual field generating device which can generate a wide visual field simulated visual field at high speed without requiring expensive hardware. It is intended to be provided.

[0006]

A wide-field simulated visual field generator according to the present invention includes a plurality of graphic image generators for individually generating a visual field image of a display object for each display object, and these graphic image generators. Image memory for separately storing the view image for each display object generated in, and the view image for each display object stored in the image memory under the control of the processor at the respective desired priority and coordinate position. A means for generating a wide-field simulated visual field video signal which is image-synthesized so as to be displayed, and the wide-field simulated visual field video signal is separately transmitted to each of the plurality of display devices, and is displayed by each of the plurality of display devices. And means for generating two wide-field simulated visual fields.

[0007]

In the wide visual field visual field generator of the present invention,
By separately generating the visual field image of the display object for each display object and synthesizing the image with the video signal, the load of the display amount can be reduced to about 1/10 of that of the conventional device.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram showing an embodiment of the present invention. In the figure, the same reference numerals as those in FIG. 4 denote the same or corresponding parts, and 6a to 6m (m is an arbitrary integer. The same applies hereinafter). An individual visual field image generation unit, 7 indicates the entire image synthesis unit, 8a to 8m are image memories, 9 is a microprocessor, and 10 is a video signal generator.

Next, the operation will be described. The visual field control calculation unit 3 first transfers the database of each display object individually to the individual visual field image generation units 6a to 6m. next,
The visual field control calculation unit 3 inputs the training area or region and viewpoint information (that is, position data and posture data) from the simulator control computer 2, determines a plurality of display objects to be displayed according to the training area or region, and calculates each individual visual field image. Information to be transferred, which will be described later, is calculated by the generation units 6a to 6m and the image synthesis unit 7, and the individual visual field image generation unit 6 is generated.
a to 6 m and transferred to the image synthesizing unit 7 as control data.

A plurality of individual visual field image generators are provided independently of each other regardless of the number of display channels (6a to 6 in the embodiment).
m), the type of display object to be displayed and viewpoint information are input from the visibility control calculation unit 3, and an individual view image corresponding to the information is generated. Reference numerals 11a to 11c in FIG. 3 are views showing individual field-of-view images, and specific display objects (ship, buoy, mountain,
Buildings only). That is, the individual visual field image generation units 6a to 6m generate individual visual field images of different types of display objects as monitorable image signals.
Then, the image signals are input to the corresponding image memories 8a to 8m of the image synthesizing unit 7 and stored as image data. That is, the image memory 8 is provided at least as many as the individual visual field image generating units 6 (8a to 8m in the embodiment), and the image data of the individual visual field images are stored separately.

As described above, the microprocessor 9 inputs the display position and priority information (shown at 12a to 12c in FIG. 3) of each individual visual field image from the visual field control calculation unit 3, and the upper part of FIG. As shown in the figure, a command is issued to each of the image memories 8a to 8m to position each individual visual field image at a predetermined display position and in order of priority. Image memory 8a-
The 8m outputs the image data for each channel to the video signal generator 10 at an appropriate timing according to the command.
The video signal generator 10 receives the image data and simultaneously generates RGB video signals required for displaying on the visual field display devices 5a to 5n for the respective display channels. RG
The B video signal is input to a plurality of field-of-view display devices 5a to 5n each having a screen placed continuously and is displayed as a wide-field simulated field of view.

The above operation will be described in more detail with reference to FIGS. For each individual view image 11a-11c,
Display position (x, y) and priority information 12a to 12c
Is input to the microprocessor 9 from the view control calculation unit 3 shown in FIG. As shown in the upper diagram of FIG. 3, the display position is a coordinate position when the wide-field simulated visual field screen finally output by the video signal generator 10 is defined as a two-dimensional XY plane. And Further, the priority means that when the individual visual field images 11a to 11c overlap each other,
It is a number for designating which individual field-of-view image should be prioritized. The smaller the numerical value, the higher the priority. That is, in the example of FIG. 3, the individual visual field image 11b has the highest priority, and the individual visual field image 11a and the individual visual field image 11c have lower priority in this order. Therefore, as shown in FIG. 3, when the individual visual field image 11b and the individual visual field image 11c overlap, the overlapping portion is displayed so that the individual visual field image 11c is hidden by the individual visual field image 11b.

FIG. 5 shows a wide visual field simulated field of view drawn by the apparatus of the present invention (shown in FIG. 5A) and a wide visual field simulated field of view drawn by a conventional apparatus (shown in FIG. 5B). It is a figure showing a comparison with, in the figure, the same reference numerals indicate the same parts,
40a to 40c are, for example, 4a to 4c of the visual field image generation unit of FIG.
4c shows the contents of the visual field images respectively generated. Figure 5
As shown in (B), the visual field images drawn by the conventional apparatus are the display channels 1a to 1c and the visual field images 40a to 40c.
In contrast, the simulated visual field drawn by the apparatus of the present invention is the same as that of the display channels 1a to 1c and the individual visual field image 1.
1a to 11c, that is, the view display device 5
The maximum number of individual field-of-view image generation units 6a to 6m, which are the same as the number of individual field-of-view image generation units 6a to 6m, are displayed at arbitrary positions and at arbitrary positions under the control of the microprocessor 9 without being restricted by the display channels a to 5n. .. Therefore, in the conventional device, when the number of display objects increases, the drawing must be repeated by that number (sequential processing), and the drawing speed becomes slower. However, in the device of the present invention, when the number of display objects increases, By increasing the number of individual visual field image generation units 6 used, the drawing speed can be maintained at high speed (parallel processing), there is no need to use expensive hardware to update the screen, and a speed of 30 mS which is not visually noticeable. It can be processed (real-time processing) at 60 mS.

[0014]

As described above, according to the present invention, by generating and processing an image of each display object, which is an individual visual field image, the burden of the display amount can be reduced as compared with the conventional device.
There is an effect that it is possible to generate a wide visual field simulated field of view that can be used for a simulator or the like in real time with general-purpose drawing hardware without requiring expensive dedicated high-speed drawing hardware. ..

[Brief description of drawings]

FIG. 1 is a perspective view showing a ship-handling training simulator for explaining a wide-field simulated field of view.

FIG. 2 is a block diagram showing an embodiment of the present invention.

FIG. 3 is a diagram for explaining the operation of the present invention.

FIG. 4 is a block diagram showing a conventional device.

FIG. 5 is a diagram showing a comparison of display examples of the device of the present invention and the conventional device.

[Explanation of symbols]

 1a-1n Each display channel 2 Simulator control computer 3 View control calculation part 5a-5n View display device 6a-6m Individual view image generation part 7 Image synthesis part 8a-8m Image memory 9 Microprocessor 10 Video signal generator

Claims (1)

[Claims] 1. A wide visual field simulated visual field generating device that generates a single wide visual field simulated visual field by combining simulated visual fields that are respectively displayed by a plurality of consecutively arranged display devices, and is composed of many display objects. Multiple graphic image generators that generate visual field images separately for each display object, image memory that stores visual field images for each display object generated by these graphic image generators separately, and the above image under the control of the processor A means for synthesizing the visual field images of the respective display objects stored in the memory so as to be displayed at desired priority and coordinate positions, and generating a wide visual field simulated visual field video signal. The data is sent separately to each of the plurality of display devices and displayed by each of the plurality of display devices. Wide viewing simulated vision generation apparatus characterized by comprising means, for generating a wide field simulated field of view by combining the 擬視 field.