JPH0174579U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a configuration diagram of one embodiment of the present invention;
3 and 3 are diagrams showing an example of a navigation display according to an embodiment of the present invention. 1... own ship's track processing section, 2... track display section, 3
...Mixer, 4...Color display, 5...Control unit, 6...Radar interface, 7...Radar image processing unit, 8...Target tracking unit, 9...Other ship track processing unit, 10 ...Display section, 11...Internal memory.

Claims (1)

[Scope of utility model registration request] In addition to setting nautical chart information such as the scale of the sea area, latitude lines, longitude lines, coastlines, and dangerous areas, the own ship's position information sent from navigation equipment such as Loran navigation equipment and satellite navigation equipment is automatically added to the above nautical chart information. an own ship track processing unit 1 that adds the ship display color or mark track information to the track display unit 2, and sends the above nautical chart information, own ship track information, and position information to the control unit 5; By scanning the information from the ship track processing section 1 on the color display 4, the ship's own ship's track information, position information, and nautical chart information are converted into video signals and sent to the mixer 3, and the display section 10 displays the above information. A track display unit 2 that sends a synchronizing signal for sending a video signal in synchronization with the scanning of the color display 4, and a mixer 3 that combines a plurality of video signals and sends the synthesized video signal to the color display 4. Then, receive radar information such as radar echo, bow marker, radar scanner rotation angle, transmission trigger and range information sent from the radar, select the radar information you want to display, and perform interference cancellation for the radar echo. , a radar interface 6 that quantizes the radar information by suppressing reflections on the sea surface, rain and snow, etc., and sends it to the radar image processing section 7 and target tracking section 8; and the own ship's azimuth information sent from the gyro. , the heading angle calculated from the chart information sent from the own ship's track processing section 1, the own ship's track information, and the position information, the ratio of the length in the latitude line direction and the longitude line direction, and the center offset. At the same time, information on the coastline, dangerous areas, etc. that do not require tracking among the chart information and own ship's position information is sent to the target tracking section 8, and the chart information is sent to the radar image processing section 7. The other ship's track processing unit 9 processes own ship's position information and nautical chart information, which are parameters for displaying the track.
The radar image processing unit 7 corrects the heading angle based on the heading angle from the control unit 5 and the quantized radar information from the interface 6. After that, the polar coordinate system is converted to a rectangular coordinate system, and the latitude and longitude directions are corrected based on the ratio of the lengths in the latitude and longitude directions and the center offset amount from the control unit 5, and the The write address of the refresh memory of the display unit 10 is calculated, and the radar echo from the radar interface 6 is converted into CRT screen information of several colors depending on the intensity, and the information is sent to the display unit 10 along with the write address. The target tracking unit 8 compares and determines the radar echo information of the radar information from the radar interface 6 with the tracking unnecessary information from the control unit 5, extracts only the information regarding the ship, and determines the radar echo information of the radar information from the radar interface 6. It performs position tracking processing, adds range information and information that can classify other ships, and sends it to the other ship track processing section 9. The other ship track processing section 9 receives the above and other information from the target tracking section 8. Based on the ship's position information, range information, own ship's position information, and nautical chart information from the control unit 5, color coding or marks are added to this nautical chart information so that the tracks of other ships can be identified for the own ship and each other ship. At the same time, if another ship enters the dangerous area, a warning is generated. C of other ships' tracks from the ship's track processing unit 9
The RT screen information is stored and sent to the mixer 3 in synchronization with the synchronization signal from the track display section 2, and the mixer 3 receives the own ship's track information, position information, and information from the track display section 2. Video signals such as nautical chart information, radar images from the display unit 10, and video signals such as track information and position information of other ships are combined, and the own ship's own ship is displayed on the CRT of the color display 4, which is divided into several colors. It is designed to superimpose and display all images such as the tracks of other ships, topography such as coastlines, nautical chart information such as latitude lines and longitude lines, dangerous areas, radar images, etc., and all of the above as necessary. 1. A navigation display device characterized in that it has means for dividing or selecting an image and displaying it on a CRT of a color display 4.