JPS5821290A - Composite color display unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention combines latitude lines, longitude lines, ship tracks, etc. on a single CRT display screen based on position information from radio navigation devices NN5S, Loran, etc. It relates to a display device.

Conventionally, a track display device displays the own ship's position on a CRT screen using the Mercator projection, and it receives and processes weather information in the form of infrared and visible light sent from weather satellites.

There is a weather information receiving and displaying device that displays latitude lines and longitude lines on a CRT screen in monochrome or pseudo color. However, since both of these are displayed on independent and separate displays, it is extremely inconvenient to operate the ship or plan a voyage while comparing the own ship's track and weather information.

The present invention aims to eliminate these drawbacks.

In addition to displaying latitude lines, longitude lines, and the own ship's track on a single color CRT screen, weather image information corresponding to the display range is also composited and displayed in color, each of which has its advantages and disadvantages. The present invention is characterized by organically integrating the existing weather information receiving and displaying device and the track display, thereby improving the display function.

An embodiment of the present invention shown in the drawings will be explained in detail below.

FIG. 1 is a diagram showing an embodiment of the present invention, in which 1 indicates an arithmetic unit;
The first arithmetic controller is equipped with memory and an interface, and is mainly composed of a microprocessor.
Receive location information from N5S etc. Further, the position information is converted into CRT display information, and sent by the first arithmetic controller to the color CRT display 2 along with data on latitude lines, longitude lines, etc. generated around the ship's position, and is displayed as a track. The above is equivalent to a conventional general track indicator.

Next, 3 is a meteorological satellite receiving device, which is an antenna 3.
-1 Receiving device 3-2° for receiving signals from TIRO8-N or meteorological satellite Himawari etc. Control device 3-31
Image storage circuit 3-4. This is a general meteorological satellite receiving device consisting of a color conversion device 3-5, etc., and outputs weather video information S2 including 9 position information. Furthermore, TIRO
In the case of 8-N Leeds APT, in order to know the position corresponding to the video information of the received APT, it is necessary to
Although it is necessary to receive PT orbit information.

In this case, this receiving device may be provided in the meteorological satellite receiving device 3 and configured to automatically output position information corresponding to weather video information.

The main part M of the present invention will be described below. Reference numeral 4 denotes a second arithmetic controller, which, like the first arithmetic controller, includes an arithmetic unit, a memory, and an interface, and is mainly composed of a microprocessor.

5 is a refresh memory provided independently of the second arithmetic controller, and 6 is a video generator.

Next, the operation of the device of the present invention having two or more configurations will be described. First, the operation is performed by the arithmetic controller l.

The scale information of the sea area to be displayed and the initial values for drawing the latitude and longitude lines are set, and this information sets the color C.
A scale value, latitude lines, and longitude lines are drawn on the screen of the RT display 2. Furthermore, the first arithmetic controller 1 is Loran, NN5S.
It receives position information from position measuring devices such as
Display. Further, the first arithmetic controller 1 is the second arithmetic controller 4.
It outputs a control signal 81 for controlling.

On the other hand, the meteorological image information S2 and its position information from the meteorological satellite receiver 3 are sent to the second arithmetic controller 4, where they are processed according to the display area data such as the position scale sent from the first arithmetic controller 1. 9. The display position and the weather image position are compared, and an image at the matching position is drawn. 9. Next, the output of the arithmetic controller 4 is stored in the refresh memory 5 corresponding to the color pixel of the CR7 screen.

The refresh memory 5 is composed of memories for three screens corresponding to red, blue, and green of the electron gun for color display, and the colored weather image information is stored in the respective memories 6.

Furthermore, the stored weather video information from the refresh memory 5 is sent to the video generation circuit 6, and is controlled by the second arithmetic controller 4 using the TV rask synchronization signal sent from the first arithmetic controller 1. In synchronization with this, the weather video signal corresponding to one display position is read out, a video signal S3 synchronized with the CRT is generated, and this is input to the color CRT display 2 to combine signals such as the track with weather information. In figures, scale values. 50. . . . For example, the track A of ship i is displayed in green, B in blue, C in red, latitude lines and longitude lines in white, and weather image information using infrared rays (i.e., the colors differ depending on the temperature). .

As described above, two lines of latitude according to the present invention.

Meteorological video information along with longitude lines, track, etc. can be displayed in color on a single CRT display screen.

The present invention has significant practical effects, such as making it easier to maneuver a ship while referring to weather information, making and changing a voyage plan, and also making it easier to discover tides, which are important in fishing, and quickly navigate to the location. It is something that plays.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram showing an embodiment of the present invention;
FIG. 2 is a graph showing an example of a composite color display observed on a CRT screen according to the embodiment. Explanation of symbols 1: first arithmetic controller, 2: color CRT display. 3...Meteorological satellite receiving device, 3-1...Antenna. 3-2... Receiving device, 3-3... Control device, 3-4
...Image storage device, 3-5...Color conversion device, 4
...Second arithmetic controller, 5...Refresh memory. 6...Video generation circuit. Shield hoko applicant Japan Radio Co., Ltd.

Claims (1)

[Scope of claims]
A track display device comprising an arithmetic controller and a color CRT display that receives an output signal from the first arithmetic controller and displays it in color; A second arithmetic controller that depicts weather image information that matches the display range determined by the arithmetic controller and a storage controller of the meteorological satellite receiver are transmitted to T.
The information stored in the memory corresponding to the V color and the refresh memory are read out in synchronization with the sweep signal of the color CRT display and sent to the color CRT display. A composite color display device comprising: a video generation circuit for displaying meteorological video information in color together with the above-mentioned track, latitude lines, and longitude lines. (2) The device according to claim 1. A composite color display device characterized in that the Refle'/:L memory is composed of memories for three screens corresponding to red, blue, and green of an electron gun, respectively, for color display.