JPH0318123B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention displays the ship's track and maneuvering information on a color cathode ray screen along with longitude and latitude lines based on position information obtained from navigation equipment such as satellite navigation equipment, Loran receivers, and Omega receivers. The present invention relates to a device that displays information in different colors and emits ship maneuvering information by voice.

Conventionally, there is a method of displaying wakes in a single color, but this method has the drawback that it becomes difficult to distinguish between wakes when the wakes are close to each other or intersect.

In addition, when it comes to adding meaning to the wake as to whether the ship is moving or in operation, there are limits to using a single color.

In order to improve the above-mentioned drawbacks, the present invention displays any part of the wake in any color to make it easier to distinguish the wake, and also displays vessel maneuvering information by voice.This invention will be explained below using the drawings. do.

FIG. 1 is a diagram showing an embodiment of the present invention, in which 1 is a gyro compass, 2 is a speed log, 3 is a current meter,
4 is a water temperature and water depth gauge. 5 is a satellite navigation system (hereinafter referred to as NNSS), 6 is a Loran navigation system (hereinafter simply referred to as Loran), and 7 is an Omega navigation system (hereinafter simply referred to as Omega), and the above are various position measuring devices. 8 is an A-D converter that converts direction and speed data into digital data, 9 is a buffer memory that temporarily stores data from gyro 1 to depth gauge 4, and 10 is for position data sent from NNSS 5 to Omega 7. This is a track memory that stores sequentially. 1
1 is a vector display setting switch, 12 is a color selection switch, 13 is a chart movement switch, 14 is an enlargement/reduction switch, 16 is a motion setting switch for setting true motion or relative motion, and 17 is a microprocessor. ,RAM,
It is a central processing unit (hereinafter referred to as CPU) consisting of ROM and I/O interface. Reference numeral 18 is a vector generation memory for displaying direction, ship speed, etc. in vectors, and reference numeral 19 is a color graphics memory for displaying wake tracks and various marks in different colors, which corresponds to the three colors of the electron gun. Consists of memory. 20 is a character generator for generating necessary letters, numbers and symbols; 21 is a nautical chart grid memory for displaying the nautical chart grid; 22 is a CPU 18 and a character generator for the three primary color data sent from the color graphics memory 19;・Set each data output sent from the generator 20 and chart grid memory 21 to the desired display color (for example, if you want the vector color to be red, change the output of the vector generation memory 18 to the red output that corresponds to the three primary colors) (If you want to make the character white, add the output of the character generator 20 to each of the outputs corresponding to the three primary colors.) A color mixer for adding, 23 a horizontal/vertical synchronizing signal generation circuit, 24 a color A color monitor consisting of a CRT and its peripheral circuits, which receives horizontal and vertical synchronization signals and three primary color inputs and displays color on the CRT; 2
5 is a voice synthesizer for decoding voice data from a dedicated ROM and generating voice language based on the data sent from the CPU 17; 26 is a speaker; and 27 is a remote display.

Next, we will discuss the operation. First, position information from the NNSS 5, Loran 6, or Omega 7 is stored in the track memory 10 and simultaneously sent to the CPU 17. Based on this position information (for example, as the center of the screen), the CPU 1
7), the CPU 17 calculates the chart data and sends the character data to the character generator 20.
The grid data is sent to the chart grid memory 21. These data are processed by the color mixer 22 to create predetermined colors (for example, if both data are white, they are added to the three primary colors RGB).
It is added to the three primary color output and sent to the color CRT monitor 24, and a nautical chart based on position information (ie, a grid of latitudes and longitudes, numerical values of latitude and longitude, etc.) is displayed on the CRT.

In this state, position information is displayed at a corresponding point on the chart, for example at the center of the screen, based on its latitude and longitude. As the location information changes, dots are displayed at the locations on the screen corresponding to the changed positions, and lines are connected between these points to display a trail. Here, the color of this wake is designated by the color designation switch 12. For example, if you want to display the track in yellow, set the switch 12 to yellow, and the CPU 17 will sequentially store the position data sent from the memory 10 in the locations corresponding to red and green in the graphics memory 19. . As a result, the wake data is transferred to the color mixer 22.
The yellow track is added to the red and green lines on the CRT monitor 24 through the nautical chart, so a yellow track is displayed on the chart.

Therefore, a wake of any color can be drawn. For example, you can start by drawing Roland's trail in red, and then change Omega's trail to blue.
Also, if you enter the NNSS satellite positioning symbol in addition to the red Loran track and then set the motion setting switch 16 to true motion, the chart will be fixed and the track will be drawn as described above, but the relative When set to motion, the position sent from the track memory 10 is fixed at the center of the screen (or a specified point),
Make the chart move.

In addition, in order to manually change the location of the displayed chart, it can be moved in any direction, north, south, east, or west by operating the chart movement switch 13. For example, if you continue to set chart movement switch 13 to the east,
The CPU 17 calculates the latitude line a certain distance east of the rightmost (easternmost) latitude line on the display screen, calculates the grid and characters in the screen, and sends the character generator 2
0 and the chart grid memory 21 are repeated. Therefore, the displayed nautical chart will move further and further to the east.

Furthermore, the scale of the nautical chart can be changed using the enlargement/reduction switch 14.
It can also be changed freely by operating , and any scale can be set based on the current position.

That is, when the enlargement/reduction switch 14 is set to "enlarge", the CPU receives the setting of the switch 14,
Nautical chart data with a scale factor that is a certain value smaller than the currently displayed scale factor and with the current position fixed on the screen is calculated, and character data and chart grid data are sent to a character generator 20 and a chart grid memory 21. Furthermore, if the enlargement/reduction switch 14 continues to be set to "enlargement", the CPU 17 repeats this operation. The same applies to the case of reduction. Through the above steps, a nautical chart of any scale can be displayed. Therefore, since the current position is fixed on the screen and enlarged/reduced, no matter where the current position is on the screen, the current position will not disappear from the screen when enlarging as in the conventional case.

Next, the data from the gyroscope 1 and the log 2 are stored in the buffer memory 9 via the A-D converter 8, and the data from the current gauge 3 and the water temperature/water depth gauge 4 are directly stored in the buffer memory 9 and sent to the CPU 17. .
Furthermore, when the vector display switch 11 is set to "vector display", the CPU 17 uses the buffer memory 9
is stored in. A vector display amount corresponding to the screen scale is calculated from the gyro direction and speed data and sent to the vector generation memory 18. The output of the vector generation memory 18 is sent to a color mixer 22, where it is combined into a predetermined color (for example, if it is blue, it is added to the blue output of the color mixer 22). This will display the own ship's direction and speed as a vector in the specified color. When the vector display switch 11 is turned off, the CPU 17 erases the data in the vector generation memory 18, thereby erasing this vector display. Similarly to the direction and speed of the gyroscope, the direction and speed of the current sent from the current meter can also be displayed as a vector. Furthermore, water temperature and water depth data are provided by CPU17.
The signal is sent to the character generator 20 and displayed near the wake on the screen.

Furthermore, the voice synthesizer 25 receives ship maneuvering information, such as ship speed data, sent from the CPU 17 and uses a ROM
The audio data is decoded from the speaker 26.
to generate sound. This is similar to the one used in translators, etc., and for example, when the ship's speed is 8 knots, the speaker emits "C, N, So, Ku...Ha, Chi, No, Tsu, To." Furthermore, by installing speakers in various parts of the ship, you can listen to ship speed information from various places at the same time. It goes without saying that the system can also generate warning sounds for direction, water temperature, water depth, current, and other sounds.

Here, in order to display the display output of the color mixer 22 correctly on the screen, the horizontal/vertical synchronization signal generation circuit 23 sequentially receives access reference signals from the chart grid, vector, and character memories sent from the CPU 17. , generates horizontal and vertical synchronizing signals and sends them to the CRT monitor 24.

The remote display 27 displays exactly the same screen as the CRT monitor 24, and is intended to be viewed at a location separate from the main body.

Fig. 2 is a diagram showing an example of a track display according to the present invention. For example, A shows the track of Omega in blue at a scale of 1/25000, and when the track changes to the opposite direction, the display changes to B in red, and C shows the ship's speed. An example is shown in which the direction is displayed as a vector, and D is further displayed as a green vector of the current.

Therefore, according to the present invention, the wake of a ship can be shown in color, and it can be changed to various colors even during navigation, so that it is possible to distinguish colors during navigation or operation. Also, the direction and speed of own ship or the direction and speed of the tidal current at own ship position are vectors.
Can be displayed in color. Furthermore, expansion of latitude and longitude lines
The scale is arbitrary, and you can freely move the entire chart and switch between true motion and relative motion. In addition, the above various vessel maneuvering information and surrounding situation data can be uttered by voice, information can be understood without visually checking the display screen, and by making it possible to speak from another location, vessel maneuvering information during operation can be uttered. You can also listen to

As described above, the present invention allows a ship to easily grasp the surrounding situation of its own ship from multiple angles and comprehensively.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing an example of a track display. 1...Gairo, 2...Log, 3...Tide current meter,
4... Water temperature/depth gauge, 5... NNSS, 6... Loran, 7... Omega, 8... A-D converter, 9
... Buffer memory, 10 ... Track memory, 11
... Vector display setting switch, 12 ... Color specification switch, 13 ... Chart movement switch, 14
...Enlarge/reduce switch, 16...Motion setting switch, 17...CPU, 18...Vector generation memory, 19...Color graphics memory, 20...Character generator, 21
...Nautical chart grid memory, 22...Color mixer, 2
4...CRT monitor, 25...speech synthesizer.

Claims (1)

[Claims] 1 A device that displays a ship's track along with latitude and longitude lines on a CRT display based on position information obtained from navigation equipment such as Omega, Loran, and NNSS. - A means for displaying motion or relative motion, a means for displaying the own ship's heading and speed and the direction and speed of the current in color vectors, and a means for enlarging and reducing the screen at any location on the CRT display. It is equipped with a means for displaying ship's position as the center, a means for arbitrarily selecting and displaying or erasing the wake according to color, and a voice synthesis means for displaying ship maneuvering information by voice. A comprehensive color track display device characterized by displaying tracks of different colors.