JPS6069513A - Track recorder - Google Patents

Abstract

PURPOSE:To display a specific position automatically at the center position of a track display screen by performing switching to a track display screen while a cursor is in a specific display area as to a track recorder which displays position data obtained from a navigation device such as a loran receiver, omega receiver, and NNSS receiver. CONSTITUTION:When a screen switching key is operated in the state of the track display screen, an initially set screen contains a specific position data display screen. Destination data is set with numeric keys by moving the cursor C while the initially set screen is displayed. While the cursor C is set in this area CE, the screen switching key is operated to display the mark for the destination corresponding to the set position of the cursor C at the center position of the track display screen.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical field This invention is applicable to a 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.

(b) Prior Art and its Disadvantages A conventional track recording device that can display a track on a display such as a CRT display is disclosed in, for example, Japanese Patent Application No. 52716/1985, which was previously proposed by the present applicant. As shown in the figure, the position data sent from the navigation device is stored in the memory, and the stored data is read out from the memory and displayed on the display. Further, in the above-mentioned navigation device, when setting an event mark, a destination mark, etc. on the display screen on which the track is displayed, the setting position is specified with a cursor. However, although such devices have the ability to display a track on a display and set event marks that serve as landmarks using a cursor, they are insufficiently easy to use. For example, destination marks and the like are set over a wide area, but when the area of sea area is displayed,
When displaying an event mark that is set at a considerable distance from the display screen, it is necessary to operate the screen/cursor movement keys for a long time to bring the mark within the display screen, and the purpose of When the latitude and longitude values of the place mark are far from the display screen at that time,
Since the relative positional relationship between the current position of the ship and the current display screen cannot be determined intuitively, key operations to bring the current position onto the display screen are relatively difficult.

(C) Object of the Invention The object of the invention is to enable setting of a specific position data display screen that displays position data of a specific position such as a destination, in addition to a track display screen that displays a track;
If you move the cursor within a certain display area on the display screen and switch to the original track display screen, the specific position of the data specified directly or indirectly at the cursor position will be displayed at the center of the track display screen. To provide a track recorder capable of displaying a desired specific position at the center of a track display screen by simply operating a cursor on the specific position display screen and pressing a switch for switching the screen.

Structure and effect of the fd+ invention In summary, the present invention enables switching display between a track display screen and a specific position data display screen that displays position data of a specific position using a display screen changeover switch, and a cursor on the specific position data display screen. cursor position determining means for determining whether or not the cursor is within a certain display area;
means for setting specific position data directly or indirectly specified by the cursor position to the center position of the display screen when switching to the track display screen with the cursor within the certain display area; Specify the specific position you want to display at the center of the track display screen with the cursor on the specific position data display screen, and then switch the display screen so that the specific position specified with the cursor will be automatically displayed at the center of the track display screen. It is something.

According to this invention, even if multiple specific locations such as destinations are set over a wide range, all of them are displayed on the specific location data display screen, making it extremely easy to select the specific location you want to display. At the same time, the operation is very simple as it only requires moving the cursor within a certain display area and operating the display screen changeover switch once after moving the cursor to a predetermined position. It has the advantage that there is no need to operate it in a long and complicated manner as in the past.

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

Keyboard 1 consists of a total of 33 keys, and is used for screen operations, setting destinations and 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. Important cursor key 103. own ship center key 10
Do it in 4. The cursor important 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.

To set destination marks, event marks, etc., press numeric key 1
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 the case of q, the setting of the storage interval time and the alarm approach distance are performed using the numerical keys 106.

Note that the track interrupt key 111 is used to interrupt display of the track,
It is used when restarting, and when the track is interrupted, only the own ship's mark is displayed, and if you operate it again in that state to resume displaying the track, the track will begin to be drawn from the position of the own ship's mark at that time. The wake color designation and color deletion key 105 specifies the color of the wake, or designates one color among the wakes designated in several colors to temporarily or permanently delete the wake. The track redisplay key 112 is used to display the track temporarily erased by the track color erase key to its original state. Furthermore, function keys 107 such as a mark erase key, a destination number key, and a release key are used for event marks,
To erase the destination mark etc., press the numeric key 10" above.
6, select one of the destinations set, delete destination data on the initial setting screen, stop the alarm buzzer, etc. Furthermore, the display 2 number key 108 on the additional screen adds the data (current track screen) in the track memory memory (memory 0) to the data in the additional memory (
Select whether to display the additional screens (additional screens) overlapping each other, or to display only one of them. 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 a latitude line, LON represents a longitude line, and S represents a coastline set using nine of the numerical keys 106. Furthermore, wpl, WF2 has numeric key 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 (one of 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; when the cursor is not displayed, the ship's speed is displayed on the first line, and the course is displayed 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.

FIG. 3 is a diagram showing a display example of the initial setting screen when the screen switching key 110 is operated from the state of the track display screen shown in FIG. 2.

In the track recorder of this embodiment, the initial setting screen shown in the figure includes a specific position data display screen.

The initial setting data is displayed at the ■ position. As mentioned above, the initial settings are the navigation device and memory interval.

Perform smoothing and alarm range respectively. For example, when using a receiver using a NN5S receiver in a navigation device, "Move the cursor C to the right side of the cursor j and set it to 1.

Also, if you want to set the memory interval to 10 seconds, move the cursor C to the right of "Kioku Kankaku" and set it to 2.

In the same way, "smoothing" and "keihouhani"
Initial settings are also made for each using cursor C and numeric keys.

The specific position display screen is set to the [phase] position. In this embodiment, the specific location data is used as destination data.

There are a total of 8 destinations from WP (6) to WP (7).
In the illustrated example, WP (1) and WP (2) are set. Destination WP (1)
The latitude is 33° 02.00, the longitude is 134° 45,
00, and the destination mark representing the location is displayed in red. Furthermore, the + mark indicates that the destination mark WP (1) is in a locked state that cannot be erased using the mark erase key. Similarly, destination WP (2) has latitude and longitude of 33° 55, 0B and 134° 10°72, respectively.
The display color is yellow, and the - mark indicates that the mark can be erased.

The above destination data setting is performed by operating the cursor C and the numerical keys 106 while the initial setting screen shown in FIG. 3 is displayed.

Display area C set at the right end of the above [phase] position
B is the part that displays the above-mentioned + mark or - mark to indicate whether or not the lock state is present.Move the cursor C to this area G
When the screen switching key 110 is operated with the cursor C set within E, the destination mark corresponding to the set position of the cursor C appears at the center of the track display screen. When the screen switching key 110 is operated while the cursor C is not within the area CE, the track display screen becomes the track display screen immediately before the initial setting screen at that time. Therefore, if the operator wants to bring a desired destination out of a maximum of eight destinations to the center position of the track display screen, move the cursor C within the rightmost area CE of the destination data and All you have to do is operate the switching key 110.

In addition, in FIG. 3, at the position @, the number of track points and the number of marks such as event marks stored up to the present in memory number 0, and the results of the self-test of the device by the self-diagnosis program are displayed.

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

FIG. 4 is a diagram of the track recorder.

Input data is input to the CPLllo from the keyboard 1, and navigation data is input from the navigation device. Loran, NN5S, compass, gyro, etc. are used as navigation devices to obtain position data and direction data. ROMII stores a program that defines the operating procedure of the track recorder,
The RAM 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 RAM12 is the aforementioned track storage memory (memory 0)
, and is treated as the 0 screen, which is the reference screen.

CPU10 can further optionally be connected to a plurality of RAMs and a plurality of ROMs, and can transfer data in memory No. 0 to each RAM. R for this expansion
The screen numbers of AM and ROM are 1 to n, and the storage capacity number is 1000 points, similar to the RAM 12. In the illustrated example, the screen numbers are three R's numbered 1 to 3.
AM has been added, and two ROMs with screen numbers 4 and 5
has been added. In addition, RAM12.1-3 of 0 screen
The screen's RAM is individually spaced so that the 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 1 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 graph ink memories for displaying tracks, event marks, maps, etc. in up to seven colors;
and a character generator for displaying latitude, longitude data and other characters. The color conversion circuit 14 converts the data stored in the graphic memory into a predetermined color signal based on the color data of the wake specified by the wake color designation key or the numerical key 106, or the color data of other event marks, etc., and converts it into a predetermined color signal. Output to.

Figure 5 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. 5, 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.

Area M3 stores the interval at which the CPU 10 takes in position data sent from the navigation device, that is, the storage interval t of 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
PU10 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. CPUl0 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 Refre Nosh 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 1st fixed color of the current track is displayed on the first line at the position marked ■ 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 the CPU 10 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, based on the drift (error etc.) corresponds to this azimuth correction data eH.
The data stored in O is used to display the mark marked ■ in Figure 2, and the display position of the upper and lower triangular marks is controlled according to the magnitude of the - course error dD, and when the course error dD becomes O, both triangle marks are displayed. Display control to match mark positions.

Direction data H input from the compass of the navigation device is stored in area Mll. 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 equivalent to one point or so 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 expansion 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 are transferred from the RAM 12. Ru.

7 and 8 show the basic operating procedure of the track recorder.

Figure 7 shows the position data sent from the navigation device stored in the 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. 8 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.

After the display range is set, the pointer POINT allocated in CPUl0 is then set to 1. Next, the data Pn of the 0th memory set by the pointer POINT is read out (r+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 7th
This process is executed each time position data is written at n4 in the figure 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 operating procedure for setting destination data on the initial setting screen shown in FIG. 3 by operating the screen switching key 110, and the operating procedure for displaying an arbitrary destination mark at the center of the track display screen. explain.

FIG. 9 is a flowchart showing the operational procedure when setting destination mark data on the initial setting screen.

When any key on the keyboard 1 is operated, it is determined in n20 whether the current screen is an initial setting screen or a track display screen. If it is a track display screen, it is determined whether the operated key is the destination key 106a (n21), and it is further determined whether the subsequently operated key is a numeric key (n22). When the destination key 106a and the numerical keys are not operated in that order, the process moves to other processing. n
If the numeric key is operated in step 22, the position of the cursor intersection point CP should be determined (n23), the latitude and degree of that position,
Write the longitude value to memory number 0.

On the other hand, when the display screen is the initial setting screen on n20, it is necessary to judge whether the latitude and longitude values are set correctly using cursor C and numeric keys 106 (n25).
If the correct settings have been made, the setting data is written to memory No. 0 at n26.

As described above, in the state of the track display screen, the position of the cursor intersection point CP can be written to memory No. 0 as the destination, and in the state of the initial setting screen, the latitude and longitude values can be directly set using the numerical keys 106. The position data of the target value can be set in the 0th memory.

When the destination is set in step n26, the process advances to step n31 in FIG. At n31, it is determined whether the screen switching key 110 has been operated. Also, if the screen switching key 110 is operated while the track display screen is being displayed, n30
Proceed to , and the initial settings screen will be displayed. When the screen switching key 110 is operated while the initial setting screen is displayed, it is determined whether the cursor C is within the area CE n3
2) If not, proceed to n33 to execute screen switching and end. However, if the cursor is within area CE, move the center position C of the track screen (stored in area M5) to the left side of the cursor C. After setting the location data to the destination position data set in (n33), the screen is switched and the process ends. By the above operation, the mark of the desired destination can be set at the center position of the track display screen with a simple operation.In the above embodiment, the cursor C is set at the rightmost position of the desired destination. The destination data was specified indirectly by the cursor position, but the cursor C
The destination may be directly specified by aligning it with the position of "WP" displayed on the left side. Further, although the destination data is displayed at the [phase] position on the initial setting screen, a screen that only displays the destination may be set separately from the initial setting screen. Further, as the specific position, in addition to the destination, any position such as the position of an event mark can be set.

[Brief explanation of the drawing]

Fig. 1 is a front view of a track recording device which is an embodiment of the present invention, Fig. 2 is a display on a track display screen (a figure showing +1,
The figure is a diagram showing an example of display on an initial setting screen including a specific position data display screen. 4 is a program diagram of the track recorder, FIG. 5 is a block diagram of the RAM 12, FIG. 6 is a block diagram of an additional memory, FIG. The figure shows the display operation procedure J-
It is a flowchart. Furthermore, Figure 9 shows destination setting movement 1.
Figure 10 is a flowchart showing the operating procedure when switching the striped screen. Applicant Furuno Electric Co., Ltd. Agent Patent Attorney Hisao Komori 21.4 f -Tm -m-"-〇〇 ■ ■ ]11 1 1 1 ``Figure 7 Figures 4 and 8

Claims (1)

[Claims] +l) A track storage means that accumulates position data sent from the navigation device and stores it as a track, and the data stored in the track storage unit is used as a track display screen, or the position data of a specific position is displayed as a specific position data display screen. a display screen for setting the screen to be displayed on the display device as either the track display screen or the specific position data display screen; and a display screen changeover switch for setting the screen to be displayed on the display device as either the track display screen or the specific position data display screen, and specifying the display screen by operating the display screen changeover switch. cursor position determination means for determining whether or not the cursor is within a fixed display area of the specific position data display screen when switching from the position data display screen to the track display screen; When switching to the track display screen in
A track recording device comprising means for setting specific position data directly or indirectly specified by a cursor position to the center position of a display screen.