JPS60149914A - Battle tracer - Google Patents

Abstract

PURPOSE:To allow the titled recording apparatus to call out the present position of own ship by one-touch operation, by setting the center position of a display device to the present position when the center key of own ship, which indicates that the present position of own ship is displayed at the center of the display device, is operated. CONSTITUTION:ROM11 stores a program for prescribing the operation process of a battle tracer and RAM12 stores the positional data inputted from a navigation apparatus or the destination mark or event mark inputted and set by a keyboard 1. The data of zero-number memory constituting a navigation memory means is written in refresh memory 13 corresponding to the operation of the keyboard 1. In this case, only the data of a zero picture and only an indicated picture data or data obtained by superposing the indicated picture data to the zero picture data are written by operating an increase picture display and a number key and displayed by CRT2. A color conversion circuit 14 converts the memory data of graphic memory to a predetermined color signal which is, in turn, outputted to CRT2.

Description

DETAILED DESCRIPTION OF THE INVENTION (al technical field) This invention applies to Loran receiver, Omega receiver or NN5S
Accumulates position data obtained from navigation devices such as receivers,
This invention relates to an improvement in a track recording device that displays a track on a display such as a cathode ray tube.

tbl Prior Art and Its Disadvantages A conventional track recorder capable of displaying a track on a display such as a CRT display is disclosed, for example, in Japanese Patent Application No. 52716/1983, which was previously proposed by the present applicant. In this way, the position data sent from the navigation device is stored in a memory, and the stored data is read out from the memory and displayed on the display. However, although such devices have the basic function of displaying stored data on a display, they are not sufficiently easy to handle. For example, the operation to display the current position in the display range must always be performed using the screen/cursor movement keys, and after switching the display area from sea area A to sea area B, which is quite far away from sea area A, the operation must be performed again automatically. In order to return the ship's current position to the display range, the screen/cursor movement keys had to be operated for a long time, and the ship's current position could not be immediately returned to the display range.

(C1 Purpose of the Invention The purpose of this invention is to call to the center position of the display range with one touch even if the current position is not within the display range and is located at a considerable distance from the display range at that time. The purpose of this invention is to provide a track recording device that can perform the following tasks.

id+ Structure and Effects of the Invention In summary, the present invention provides a own ship center key for calling up the current position of the own ship to the center position of the screen, and when the key is operated, displays the center position of the display to the current position. It is designed to be set at a certain position.

According to this invention, the current position of the own ship can be called up in the center of the screen with a single touch without having to operate the screen/cursor movement keys for a long time, resulting in extremely improved operability. If you have no idea where your current position is (even if you do, you can set your current position to the center of the screen by pressing the own ship center key once.

TELE EMBODIMENT FIG. 1 is a front view of a track recorder which is an embodiment of the present invention. In the figure, 1 is a keyboard, 2 is a CRT, 3
4 is a brightness adjustment volume, and 4 is a keyboard illumination volume.

The first keyboard consists of a total of 33 key switches, which can be used to operate the screen, set destinations, event marks, etc.
Performs data transfer between memories, initial settings, etc.

For screen operations, use the screen/cursor movement keys 101. Scale change key 102. Cursor on/off key 103. own ship center key 10
Do it in 4. The cursor on/off key 103 displays or erases a cursor on the display screen each time it is operated. The screen/cursor movement key 101 moves the cursor when the cursor is displayed on the display screen, and moves the screen when the cursor is not displayed. A scale change key 102 enlarges and reduces the screen. The own ship center key 104 sets the own ship mark at the center of the display screen when the cursor is not displayed, and sets the cursor intersection at the center of the display screen when the cursor is displayed.

Use numeric key 1 to set destination marks, event marks, etc.
This is done using 06. For example, when displaying the number 1 destination mark at a predetermined position on the display screen, first specify the display color of the destination, then operate the destination key 106a, and then operate the 1 key. . The color is specified by specifying a code from 1 to 7. For example, when the 3 key is operated, green is specified, and when the 5 key is operated, purple is specified.

Memory operations such as data transfer between memories are performed by operating a memory operation function key 109. For example, if you want to transfer the data in the memory where the track is stored (memory number 0) to another additional memory, operate the memory transfer key. Also, to erase all destination marks, event marks, tracks, etc., operate the memory erase key. Furthermore, when transferring the current track storage data to the additional memory, the user operates the erasable key to erase the additional memory prior to operating the storage transfer key.

Initial settings are performed using the numerical keys 106 and screen switching keys 110. The screen switching key 110 is a key for selecting whether the display screen is a track display screen or an initial setting screen, and the display screen is switched each time it is operated. On the initial setting screen, you can select the type of navigation device, set the interval for capturing position data sent from the navigation device, that is, the interval for storing position data in the track memory memory (memory 0), You can select a smoothing coefficient to reduce wandering, select whether or not to issue a buzzer warning when approaching the currently selected destination, and set the approach distance at which you want the warning to be issued. In this case, the setting of the storage interval time and the warning approach distance are performed using the numerical keys 106.

Note that the track interrupt key 111 is used to interrupt display of the track,
When the track is interrupted, only the own ship's map is displayed, and if you operate again in that state to resume displaying the track, the track will be drawn from the position of the own ship's mark at that time. start. Wake color specification and color deletion key 105
Specifies the color of the wake, or temporarily erases or permanently erases one color among the wakes that have been specified in several colors. The track redisplay key 112 is used to display the track temporarily erased by the track color erase key to its original state. Further, function keys 107 such as a mark erase key, destination number key, and release key are used to erase event marks, destination marks, etc.
6. Select one of the destinations set by 6, or select the destination on the initial setting screen! Performs tasks such as erasing the evening light and stopping the alarm buzzer. Furthermore, the display 1 number key 108 of the additional screen is used to display the data (current track screen) in the track memory memory (memory No. 0) and the data in the additional memory (additional screen), or to display only one of them. Choose one. The extension screen number key specifies the extension memory, that is, the extension screen at that time.

FIG. 2 is a diagram showing an example of the display on the display screen.

In the figure, cx and cy represent cursors, and CP represents the cursor intersection. LAT represents the latitude line, LON represents the longitude line, and S represents the coastline set by the 9 key of the numerical keys 106. Furthermore, WPl and WF2 are numerical keys 106
represents a destination mark set by , and E1 to E3 represent event marks similarly set by numeric keys 106 .

Also, the marks and character data displayed at the top and bottom of the display screen represent the following contents.

■ When the cursors cx and cy are displayed, a 10 mark as shown appears. Also, when the cursor is not displayed, if the own ship mark is within the screen, the own ship mark is displayed, and if the own ship mark is outside the screen, an arrow indicating the direction (or any of the eight directions) is displayed. coming out.

■ When the cursor is displayed, the position of the cursor intersection (latitude, longitude) is displayed, and when the cursor is not displayed, the position of your own ship is displayed.

■ The specified color of the current track is displayed on the first line, and the current specified color is displayed in parentheses on the second line.

■ When the cursor is displayed, the distance and direction from the own ship to the cursor intersection are displayed, and when the cursor is not displayed, the ship's speed is displayed on the first line and the course on the second line. Note that these ship speed and course are data sent from a navigation device.

■ If a water thermometer or fish finder is connected to the navigation device, the first line will display the water temperature and the second line will display the water depth.

■ The number of miles of screen width is displayed on the first line, and the screen specification status is displayed on the second line.

■ When a destination is selected, the latitude and longitude of the selected destination are displayed. In the illustrated example, the destination WP
This shows that I is selected.

■ If a destination is selected, display the distance and direction to the destination.

■ When a destination is selected, display the heading error when taking into account deviations in flow and compass errors. When the upper and lower triangular marks match, the correct course will be taken to reach the destination.

Next, the control section Q of the track recorder will be explained.

Figure 3 is a professional diagram of the Podo track recording device.

Input data is input to the CPU10 from the keyboard 1, and navigation data is input from the navigation device. Loran, NN5S, compass, gyro, etc. are used as navigation devices.
Obtain position and orientation data. ROMII stores a program that defines the operating procedure of the track recorder, and
The AM 12 stores position data input from the navigation device or destination marks, event marks, etc. input and set using the keyboard 1, up to a maximum of 1000 points. This RAM 12 constitutes the aforementioned track storage memory (number 0 memory) and is treated as the 0 screen which is the reference screen. C
PU10 can further optionally be connected to a plurality of RAMs and a plurality of ROMs, and the data of memory No. 0 can be transferred to each RAM. RA for this expansion
M and ROM have screen numbers 1 to n, and each has a storage capacity of 1000 points, similar to RAM 12. In the illustrated example, the screen number is 3 from 1 to 3 (hard RA
M has been added, and two ROMs with screen numbers 4 and 5 have been added. Note that the RAM 12.1 for the 0th screen and the RAM 12.1 for the 3rd screen are each amplified so that stored data can be retained even when the power is turned off.

The data in memory No. 0 constituting the track storage means is written into the refresh memory 13 in response to the operation of the keyboard 1. In this case, by operating the additional screen display 2 number key 108 as described above, only the data of the 0 screen, only the data of the specified screen, or the data in which the data of the 0 screen and the data of the specified screen are superimposed are displayed. Written, C
It will be displayed on RT2. The refresh memory 13 includes three graphic memories for displaying tracks, event marks, maps, etc. in up to seven colors.
It also includes a character generator for displaying latitude and longitude data, characters, etc. The color conversion circuit 14 uses a wake color specification key and numerical keys 106.
The data stored in the graph ink memory is converted into a predetermined color signal and outputted to the CRT 2 based on the color data of the track specified by or the color data of other event marks.

Figure 4 is a configuration diagram of the main parts of RAMI2, which stores 0 screen data, and Figure 5 is an expansion memory (RAM or R
OM) is a main part configuration diagram.

In FIG. 4, the location of the destination WPT set using the numerical keys 106 is stored in area M1.

The destination is set by placing the cursor on the destination, setting the destination number, and then operating the destination setting key 106a, as described above. In this case, if a color is specified using keys 1 to 7 before setting the destination number, the newly specified color data is added to the destination data and stored. If no color is specified, the color data already specified at that time is added.

Area M2 includes the navigation device NAV selected on the initial setting screen.
The type of is memorized.

The area M3 stores the interval at which the CPU 10 takes in the position data sent from the navigation device, that is, the storage interval t of the position data in the RAM 12.

Area M4 stores the scale ratio S of the display screen. This scale ratio S is changed when the scale change key 102 is operated.

Area M5 stores the center position C of the display screen. C
PUIQ always monitors the center position C of the display screen, determines the coordinates of the display screen from this center position C and the scale ratio S, and calculates the display position of the current position, track, etc.

The number of points currently stored in the RAM 12 is stored in area M6. As mentioned above, the maximum number of storage points in the RAM 12 is 1000, and when 1000 points are exceeded, old data is automatically discarded and new data is newly stored. CPU1O is in this area M6
By monitoring the number of memory points t stored in R
Controls data update for AMI2. Also RAM
12 (0 screen) data is sent to the refresh memory 13 as well, while monitoring the number of storage points t.

The designated color of the current track is stored in area M7. Second
If the designated color of the current track is displayed on the first line at the position marked with ■ in the figure, this designated color will be stored in area M7. As will be described later, each time the CPU 10 takes in position data from the navigation device, it adds the color data stored in the area M7 to the position data and stores it in the RAM 12 (memory No. 0). Note that the color is specified using the numerical keys 1 to 7 as described above. Since the graph ink memory is composed of three memories, it is possible to display up to seven colors, and CPUIO controls writing to the graph ink memory based on the color data set with numerical keys 1 to 7. will be carried out.

Area M8 stores the course from the current position to the selected destination.

The area M9 stores the course error dD, which is the amount of deviation of the triangular mark displayed at the position ``■'' in FIG. This course error is the difference between the above course and the course that should actually be set, which is caused by the error of the compass itself and the unbalanced flow of the tidal current, and is the difference between the course set previously and the course actually set. (This direction can be determined from at least two position data.)

Area MIO stores azimuth correction data eH, which is the difference between the previously set course and the direction in which the vehicle actually moved based on the course, that is, the azimuth amount to be corrected. This azimuth correction data eH is equal to other azimuth errors excluding the error of the compass itself. For example, errors based on drifting correspond to this azimuth correction data eH. In addition, area M8-M
The data stored in the IO is used to display the mark ■ in Figure 2, and the display position of the volume triangle mark is controlled according to the size of the course error dD, and when the course error dD becomes 0, both triangles are displayed. Match the position of the marks to control the display on the bow.

Area Mll stores direction data I input from the compass of the navigation device. Since this direction data H includes errors of the compass itself, the area M8. In area M12, which is used to calculate the course error dD of area M9 along with the data stored in MIO, there are 1000 event marks and destination marks set by position data input from the navigation device or numerical keys 106. The points are stored in the order in which they are entered, with the maximum number of points. Data corresponding to one point is composed of latitude and longitude data, color data added thereto, and ID data for identifying the type of data. The ID data identifies the position data input from the navigation device and the event mark and destination mark set by the numerical keys 106. When the data constituting one point is position data input from a navigation device, the color data becomes the color data set in area M7 as described above. Further, when the data constituting one point is an event mark or destination mark set by the numerical key 106, the color data becomes data of the currently specified color. The currently designated color is displayed on the second line at the position marked with ■ in FIG. 2, and is set using the numerical keys 106.

The additional memory stores position data, event marks, destination marks, etc., with a maximum of 1000 points, in the same state as that stored in area M12 of the RAM 12. The ROM in the additional memory stores map data that does not need to be changed, and the RAM in the additional memory stores tracks, event marks, destination marks, etc. that you want to keep. stored by transfer from.

6 and 7 show the basic operating procedure of the above-mentioned track recording and recording device.

Figure 6 shows the position data sent from the navigation device in RAM.
12 is a flowchart of a data recording operation procedure to be stored in No. 12 (memory No. 0). First, step nl (hereinafter, step ni is simply referred to as ni).

) receives position data from the navigation device. Next, it is determined whether the received data is received data from the navigation device set in area M2 (n2), and if so, the storage interval t set in area M3 is the same as the previous data reception. It is determined whether or not time has passed (n3). If t has elapsed, the received data is stored as current position data, color data set in area M7 and ID data for identifying the position data from the navigation device are added, and the data is stored in memory number 0. (R
AM12) in area M12.

This data recording operation procedure is executed every time data is sent from the navigation device and an interrupt is made to the CPU10. As a result, based on the determination of n2 and n3, the received data from the selected navigation device is taken in every t and written into memory No. 0.

FIG. 7 is a flowchart showing a display operation procedure for displaying data stored in memory No. 0.

First, in nlo, scale ratio S and center position C are set in area M4. The current display range is calculated by reading from M5. Since the display area of CRT2 is fixed, the scale ratio S
By knowing the center position C, the display range can be easily determined.

Once the display range has been set, the pointer POINT allocated within the CPUIO is then set to 1. Next, data Pn of memory number 0 set by pointer POINT
(n 12). Then, based on the scale ratio S and the center position C, the latitude and longitude data of the data read out at n12 are coordinate-transformed, and the writing position to the refresh memory 13 is specified (n13), and the writing is executed at n14.

This procedure from n12 to n14 is completed by incrementing the pointer at n16 and comparing the number of recording points p set in area M6 with the value of pointer POINT (n
15) The above display operation procedure, which is performed and completed for all points stored in the 0th memory, is performed every time new data is stored in the 0th memory, that is, the 6th
This process is executed each time position data is written in -n4 or a destination mark or event mark is stored using the numeric key 106.

As described above, the position data sent from the navigation device can be selectively stored in memory No. 0, and the stored data can be displayed on the CRT 2.

Next, the display operation when the own ship center key 104 is operated will be explained.

FIG. 8 shows the main part of the key manual operation procedure. First, if any key on the keyboard 1 is operated while the operating procedure shown in FIG. 6 or 7 is being executed, an interrupt is applied to the CPU10, and the key manual operation shown in FIG. Let's move on to the steps. At n20, the type of key operated is determined. If the type of key is the own ship center key 104 (n21), the process advances to n22 and the center position C set in area M5 is replaced with the current position. Thereafter, the process moves to the display operation procedure shown in FIG. 7, where data No. 0 is written into the refresh memory and the track screen is displayed.

When the own ship center key 104 is operated in this way, the center position C is replaced with the current position, so the current position of the own ship is set to the center position of the screen, regardless of the part of the display range up to that point. be able to.

[Brief explanation of drawings]

FIG. 1 is a front view of a track recording device that is an embodiment of the present invention, FIG. 2 is a diagram showing an example of display on a display screen, FIG. 3 is a block diagram of the track recording device, and FIG. FIG. 5 is a configuration diagram of an additional memory, FIG. 6 is a flowchart showing a data recording operation procedure, and FIG. 7 is a flowchart showing a display operation procedure. FIG. 8 is a flowchart showing the main part of the key manual operation procedure. 11 1 1 1 Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] (1) A track recording device having a track storage means for accumulating position data sent from a navigation device and storing it as a track, and a display device for reading out and displaying the data stored in the track storage means. an own ship center key that instructs to display the current position of the ship at the center of the display;
A track recorder comprising means for setting the center position of the display to the current position when the own ship center key is operated.