JPS6486005A - Navigation display device - Google Patents

Navigation display device

Info

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
Application number
JP24475887A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Ando
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Furuno Electric Co Ltd
Original Assignee
Furuno Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Furuno Electric Co Ltd filed Critical Furuno Electric Co Ltd
Priority to JP24475887A priority Critical patent/JPS6486005A/en
Publication of JPS6486005A publication Critical patent/JPS6486005A/en
Pending legal-status Critical Current

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.
JP24475887A 1987-09-29 1987-09-29 Navigation display device Pending JPS6486005A (en)

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)

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