JPS6486005A - Navigation display device - Google Patents
Navigation display deviceInfo
- Publication number
- JPS6486005A JPS6486005A JP24475887A JP24475887A JPS6486005A JP S6486005 A JPS6486005 A JP S6486005A JP 24475887 A JP24475887 A JP 24475887A JP 24475887 A JP24475887 A JP 24475887A JP S6486005 A JPS6486005 A JP S6486005A
- Authority
- JP
- Japan
- Prior art keywords
- image
- display
- written
- ship
- memory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Navigation (AREA)
Abstract
PURPOSE:To reduce the throughput of a CPU, by discriminating overlap of a specified area image and an image for alarm range during the scanning for display based on a data for display written into an image memory. CONSTITUTION:The current position of own ship and the current bearing of the bow thereof are read from a position measuring device 23 and a bow bearing sensor 24 through an I/O port 22 and subsequently, an image of a specified area is written into a memory for display. An alarm range image having a preset latitude and longitude range in the perimeter of the position of own ship is calculated to be written into the memory for display. Moreover, an own ship mark indicating the current position of own ship and a previous track are written into the memory for display. It is determined whether the alarm range overlaps the specified area or not and when the range approaches the specified area, a data for generating a preset alarm sound is outputted to an I/O port 25.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24475887A JPS6486005A (en) | 1987-09-29 | 1987-09-29 | Navigation display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24475887A JPS6486005A (en) | 1987-09-29 | 1987-09-29 | Navigation display device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6486005A true JPS6486005A (en) | 1989-03-30 |
Family
ID=17123461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24475887A Pending JPS6486005A (en) | 1987-09-29 | 1987-09-29 | Navigation display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6486005A (en) |
-
1987
- 1987-09-29 JP JP24475887A patent/JPS6486005A/en active Pending
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