JPH0535969B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a position recognition device used for recognizing the navigational position of a ship, an aircraft, or the like.

[Prior Art] Conventional position recognition devices in ships, aircraft, etc. either digitally display their own position in latitude and longitude, or convert a map or nautical chart into digital data and store it in memory on a magnetic tape (cassette) tape, etc. Take advantage of what you learned and use it
A method is used in which the data is displayed on a CRT display and the position data output from the positioning device is superimposed on the display.

However, digital data such as nautical charts or maps only covers extremely limited areas such as coastlines.

[Problems to be Solved by the Invention] Various positioning devices are used as position recognition devices on ships, aircraft, etc., but what they have in common is simply displaying latitude, longitude, etc. It is not easy for the crew or passengers to specifically determine and understand the location on a map or nautical chart.

The present invention attempts to solve these problems, and specifically aims to provide a system that allows crew members or passengers to clearly recognize their own position on a nautical chart or map.

Conventionally used nautical charts or maps converted into digital data (electronic nautical charts, electronic maps, digital nautical charts, digital maps) only cover extremely limited areas, such as coastlines, and therefore have almost no topographical information. Detailed location cannot be determined. Furthermore, the amount of information held by nautical charts or maps is extremely large, and the following problems arise in digitizing this information.

1. Converting nautical charts or maps into digital data requires inputting data, which incurs enormous costs.

2. Since the amount of data is enormous, memory capacity must be large. Therefore, cassette tapes and the like cannot be used satisfactorily.

3. Magnetic tape or fixed disks cannot be used in ships, aircraft, etc. because they cause vibration and oscillation.

4.Due to the memory capacity of the display, detailed displays such as charts or maps are not possible.

[Means and effects for solving the problem] The position recognition device of the present invention has a structure in which a transparent sheet map is fixed to the front of the CRT display using a locking member such as a magic fastener, and is superimposed and displayed on the CRT display. do. The coastline on the map is displayed on the CRT display, but
There is a misalignment with the coastline on the sheet map, so correct it. Positioning data input from a positioning device (e.g. GPS; Global Positioning System) is displayed as a point on a CRT display, so crew members or passengers of ships or aircraft can easily see the positioning point (their own position) on the seat. Since it appears overlaid on the map, you can clearly determine the exact location of your own ship at a glance. It is an extremely simple location recognition device.

[Example] An example of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the overall system configuration in one embodiment of the present invention, and FIG. 2 is a conceptual diagram of the system of the same embodiment.

In the figure, numeral 1 is a CPU that controls the entire system, and controls connected devices, which will be described later, via various input/output interfaces. The CPU 1 also has a display control function for displaying main information of a map (or nautical chart) on the CRT display 30 according to data in a ROM 40, which will be described later, and a function for correcting the displayed image.

Reference numeral 10 is a sheet map or nautical chart, which is a color nautical chart or map in which an original nautical chart or map is printed (burned) as is on a transparent thin sheet.

Numeral 20 is a fastener that serves as a seat locking member, and is a magic fastener for fixing the sheet map (or nautical chart) 10 to the surface of the CRT display 30.

30 is a CRT display, and positioning device 7
Positioning position data input from 0 is displayed as a point.

Reference numeral 40 denotes a map data ROM inserted into the memory expansion slot, which converts only the main information such as coastlines etc. from the map or nautical chart information into digital data and stores it in memory.

A software ROM 50 is also inserted into the memory expansion slot and stores software for displaying maps or charts.

60 is a keyboard, and 61 is an enlargement/reduction key provided on the keyboard 60, which adjusts the scale of the display of the positioning position data and the coastline etc. read out from the ROM 40 to match the scale of the sheet map.

Reference numeral 62 is a movement key provided on the keyboard 60, which moves the display position of the measured position data and the coastline etc. read from the ROM up, down, left and right so that it matches the position on the sheet map.

70 is a positioning device made of, for example, GPS (Global Positioning System).

It should be noted that the blocks indicated by broken lines in the figure are the components used when creating the system, the FDD is a floppy disk drive, and the ROM writer is a device for writing data to the various ROMs mentioned above.

Here, the operation of the above embodiment will be explained.

1. Print (print) a nautical chart or map as it is on a transparent sheet to create sheet map 10.

2 Store the main information of the map (nautical chart) in the ROM 40.

3 Map (nautical chart) display software is also in ROM5.
Store it in memory at 0.

4. Insert each of the above ROMs 40 and 50 into the memory expansion slot, and display the main information of the map (or nautical chart) on the CRT display 30 under the control of the CPU 1.

5. Fix (stick) the above-mentioned sheet map (nautical chart) 10 to the front of the CRT display 30 using the fastener 20.

6. Use the enlargement/reduction key 61 to match the main information (coastline, etc.) stored in the ROM 40 displayed on the CRT display 30 to the scale of the sheet map (nautical chart) 10.

7 CRT display 30 by movement key 62
The main information (coastline, etc.) stored in the ROM 40 displayed above is displayed on a sheet map (nautical chart).
Match position 10.

This makes it possible to display detailed position recognition, making it extremely easy for users to judge and understand their ship's position.

The production cost of the sheet map (nautical chart) 10 described above is overwhelmingly lower than that of a digital or electronic child map (nautical chart).

Additionally, computers (including software) become extremely inexpensive.

Furthermore, the amount of information of the map (nautical chart) is exactly the same as that of a general map (nautical chart), and the quality is also the same.

Furthermore, since it does not have moving parts such as floppy disks or fixed disks, it can withstand vibration and shaking (easy to mount on ships and aircraft).

Therefore, it is very effective and economical when used in a navigation recognition mechanism of a ship or the like.

In the above embodiments, a magic fastener was used as the sheet locking member, but the invention is not limited to this, and it may be used, for example, as a means for attaching to a filter for preventing eye strain, a means for inserting into a frame with a slit, or a means for inserting it between double-glazed windows. Any locking means may be used, such as a locking means.

Also, instead of printing the nautical chart (map) on a transparent sheet, it may be printed on the entire surface of glass (replacing the glass).

[Effects of the Invention] As detailed above, the position recognition device of the present invention has the following advantages compared to conventional digital maps (nautical charts) or simple positioning devices.

1. The cost of producing maps or charts is overwhelmingly low.

2. The amount of information on maps or charts is overwhelmingly large.

3 By modifying the main information stored in the ROM (coastline, etc.) so that it overlaps with that of the sheet map, it is easy to perform coordinate conversion and scale correction.

4. A large memory capacity for maps (or nautical charts) in a computer is not required.

5. Since it does not use moving parts such as floppy disks or fixed disks, it can withstand vibration and shaking (can be mounted on ships and aircraft).

6 It is extremely easy to determine and understand the user's location.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a system configuration according to an embodiment of the present invention, and FIG. 2 is a conceptual diagram of the system of the above embodiment. 1...CPU, 10...Sheet map, 20...Fasuna, 30...CRT display, 40...ROM for map data, 50...ROM for software, 60
...keyboard, 61...enlargement/reduction key, 62...movement key, 70...positioning device (GPS; global positioning system).

Claims (1)

[Claims] 1 ROM that stores the main information of maps or nautical charts
, a means for read accessing the ROM, a display device that displays an image according to the read data on a display screen, and a transparent film-like sheet on which a detailed map or nautical chart is printed corresponding to the image on the display screen. , means for removably fixing the sheet in a fixed position on the display screen, means for inputting information for modifying the image on the display screen to match the illustration of the sheet, and the A position recognition device comprising: means for modifying an image on a display screen; and means for displaying positioning data on the display screen.