JP3737955B2 - Navigation equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a navigation apparatus that displays images of a plurality of information (referred to as navigation-related information in the present invention) among information related to navigation such as navigation position, wake, navigation target point, planned route, and water depth of a ship. Is.
[0002]
[Prior art]
As such a navigation apparatus, as shown in FIGS. 13 to 17, the navigation position of the ship, that is, the position measurement part 10 for measuring the ship position, for example, satellite radio navigation, Loran C radio navigation, Decca radio navigation, etc. 2. Description of the Related Art A configuration (hereinafter referred to as “first prior art”) in which a position measurement portion that performs position measurement and a navigation related information display portion 20 that displays an image of navigation related information are separated is well known.
[0003]
Note that in each drawing described below, a portion denoted by the same reference numeral is a portion having the same function as a portion having the same reference numeral described in any of the drawings. The point or position is generally a point or position represented by a latitude and longitude value, but when using Loran radio navigation or Decca radio navigation, it may be a point or position represented by an LOP value in the navigation.
[0004]
The position measurement part 10 by radio navigation is generally called a radio navigation apparatus or a radio navigation receiver, and the navigation related information display part 20 is generally also called a wake recording apparatus. Yes.
[0005]
Further, for example, when a radio navigation device using satellite radio navigation is used as the position measurement portion 10, in addition to the own ship position 10a, the own ship speed 10b. The current traveling direction 10c can be measured.
[0006]
13 and 14, the position measurement unit 10, for example, a GPS (Global Positioning System) radio navigation apparatus, uses a signal including data of the own ship position 10a, own ship speed 10b, and current traveling direction 10c as a part of navigation related information. As shown in FIG.
[0007]
In the present invention, the current traveling direction 10c refers to the direction in which the ship is traveling by radio wave navigation, that is, the direction value obtained by measuring the traveling direction, and the bow direction is as described below. In addition, the heading direction measurement part, for example, the direction in which the bow of the ship's own ship measured by a gyrocompass or a magnetic compass is facing.
[0008]
The navigation related information display part 20 includes a navigation information processing part 70 having a control processing function (hereinafter referred to as CPU) 70A mainly composed of a microcomputer, for example, a control processing part mainly composed of a commercially available CPU, and a CPU 70A. A display processing portion 80 having a jointly operating CPU 80A, for example, a control processing portion mainly composed of a commercially available drawing processing IC.
[0009]
The data of the own ship position 10a, own ship speed 10b, and current traveling direction 10c is taken into the navigation information processing part 70 via the input / output port 71A, that is, the I / O part, and the data of the own ship position 10a. Is loaded at predetermined time intervals or at predetermined distance intervals based on the setting conditions given by operating the setting operation portion 60 described later, and stored in the wake data memory 74.
[0010]
The setting operation portion 60 is, for example, an operation panel on which operation portions such as operation keys for giving a required operation input to the navigation information processing portion 70 via the input / output port 71B, that is, the I / O portion are arranged. In the operation part for setting processing conditions for obtaining the required navigation-related information by the navigation information processing part 70 and display conditions for displaying the required navigation-related conditions on the display screen 81 of the display processing part 80. Yes, for example, setting or changing display scale, display / deletion of latitude / longitude line, movement / enlargement / reduction of display range, display / deletion of map, etc., in addition to the above-mentioned data acquisition conditions of ship position 10a Each operation key is provided.
[0011]
The navigation information processing section 70 includes a working memory 73 for storing setting data based on the setting signal 60a fetched from the input / output port 71B, data necessary for the control process, and the above-described track data memory 74. A map data memory 75 for storing map data for displaying a map, a clock circuit 76 for obtaining temporal data, and processing for storing designation data for fixed figures and screen elements such as marks and menus The required data is fetched from the memory 72, and the navigation-related information data obtained by performing the required processing according to the control processing flow program stored in the processing memory 72 is stored in the work memory 73. The map data includes the coastline M1, the iso-depth line Ld, and the like. And the iso-depth line Ld is also called an iso-depth line or a depth line.
[0012]
The navigation-related information data stored in the work memory 73 includes the navigation-related information data stored in the track data memory 74 and the navigation-related information data stored in the map data memory 75 as necessary. At the same time, it is given to the display processing portion 80.
[0013]
In the display processing portion 80, the CPU 80A controls the data of each navigation related information given from the information processing portion 70, the image element data for drawing stored in the image element memory 82, and the processing memory 83. By processing based on the processing flow program for processing, an image of the target navigation-related information, for example, as shown in FIG.
Own ship track CR1, planned route RT1, destination point JP1, coastline M1, latitude line LX, longitude line LY, iso-depth line Ld, etc., own ship position 10a, own ship speed 10b, current traveling direction 10c, destination point The image data representing the character information TT such as the numerical value of JP1 and the numerical value of the difference angle θ1 between the traveling direction 10c and the planned route RT1 is stored in the display screen memory 84 while being sequentially updated, and the display screen memory The stored contents 84 are read out and displayed on the display screen 81.
[0014]
As shown in FIG. 16, the character information TT is displayed at an appropriate corner portion of the display screen 81, or on the left or right of the display screen 81 for a plurality of widths BB of the display screen 81. 1, for example, one that is displayed on the entire vertical part of about 1/4, and one or more of the height HB of the display screen 81 on either the top or bottom of the display screen 81, for example, about 1/5 horizontal Some are displayed in a part over the entire direction, and some are displayed by combining a plurality of these displays.
[0015]
The processing memory 72, the processing memory 83, the map data memory 75, and the image element memory 82 are composed of a ROM, that is, a read-only memory, and a work memory 73, a track data memory 74, and a display screen. The memory 84 is constituted by a RAM, that is, a rewritable memory, and a memory holding battery (not shown) for holding the memory contents of a required memory among these memories is provided. . If necessary, a required memory portion may be configured as a flash memory.
[0016]
In FIG. 13, a display screen 81 is a display screen having a display surface by raster scanning, for example, a cathode ray tube display, a dot matrix type liquid crystal display, etc. Each figure of an image to be displayed is generated as follows. Is displayed.
[0017]
The image of the ship's wake CR1 is for drawing the image data stored in the image element memory 82 at the points of the past ship's position 10a and the current ship's position 10a stored in the wake data memory 74. The image elements are connected to each other and displayed as one wakeline figure. It is also possible to display the own ship track CR2 at the time of past voyage, that is, the past track CR2, with different line types or different colors as described later.
[0018]
The image of the planned route RT1 is obtained by connecting a route to the destination point JP1 by connecting a plurality of direction change points P1 to P4 with image elements for drawing stored in the image element memory 82. The figure is displayed in the form of lines L1 to L5.
[0019]
Also, only the destination point JP1 is set without setting the direction change points P1 to P4, and a figure of only one straight line connecting the own ship position 10a and the destination point JP1 at the time when the setting is made. It can also be configured to display. The direction change points P1 to P4 are also referred to as turning points.
[0020]
The image of the coast line M1 and the iso-depth line Ld is obtained by connecting the points at fine intervals stored in the map data memory 75 by the drawing image elements stored in the image element memory 82, for example, a series of coast lines M1. -Display as a figure of the iso-depth line Ld. The iso-depth line Ld is a predetermined water depth value set in advance, for example, the iso-depth line Ld every 100 m.
[0021]
Images of latitude line LX / longitude line LY are determined according to predetermined conditions or conditions set on the menu screen described later, for example, two latitude lines LX, three longitude lines LY, and an interval of latitude A horizontal line and a vertical line over the entire screen, for example, a horizontal line by a solid line, by a drawing image element stored in the image element memory 82 for the location of the point calculated in accordance with the condition that the longitude is “′” or “″”. Displays a figure with vertical lines.
[0022]
A movable cursor CLX / CLY for designating an arbitrary point CP on the display screen 81 is an image element for drawing the location of the designated point CP that moves on the display screen 81 by an operation input from the setting operation portion 60. With this, a horizontal line and a vertical line over the entire screen, for example, a graphic with a horizontal line and a vertical line as dotted lines are displayed. In some cases, the cursor CLX / CLY is changed to a small figure such as a + character figure / × character figure, and the intersection of these figures is displayed as a point CP.
[0023]
Specifically, in the setting operation portion 60, each operation key is constituted by, for example, a contact operation key that closes a contact only during operation, and input by the operated operation key is predetermined at the input / output port 71B. The signal is converted into a signal of the following code and given to a predetermined portion.
[0024]
In the case of color display in which each navigation-related information is displayed in different colors, for example, as shown in FIG. 15, a screen selection operation part 61, a destination setting operation part 62, a track setting operation part 63, It comprises a mark setting operation portion 64, a numerical value setting operation portion 65, a screen setting operation portion 66, a power supply operation portion 67, an arbitrary direction movement operation portion 68, and the like.
[0025]
In the configuration of the setting operation portion 60 in FIG. 15, the screen selection operation portion 61 is an operation portion that mainly selects the display form of the display image of the navigation-related information displayed on the display screen 81, "Key", "monitor" key, "menu" key, etc. are provided.
[0026]
The “wake” key is an operation key for selecting a display state mainly based on the ship's track, for example, the display state of FIG. The “ship maneuvering” key is an operation key for selecting a display state mainly based on the ship maneuvering of the ship. The “monitor” key is an operation key for selecting a state in which navigation-related information is displayed and monitored only by characters, that is, a monitor state. The “menu” key is an operation key for selecting a display state for displaying a menu screen for setting each detail among the display conditions of the navigation related information.
[0027]
The destination setting operation part 62 is an operation part for mainly selecting a display form related to the destination in the navigation-related information displayed on the display screen 81, and includes a “destination” key, a “destination” key, A “route” key, an “alarm” key, etc. are provided.
[0028]
The “destination” key sets a destination point as an end point of navigation, for example, a destination point JP1 in FIG. 16 and registers the destination with a predetermined code, for example, a destination number. This is an operation key for displaying.
[0029]
The “destination” key is an operation key for setting a display state in which any one of destinations registered by an operation with the “destination” key is selected as a destination. The “route” key is an operation key for setting a display state for setting a planned route to a destination, for example, the planned route RT1 of FIG. 16, that is, a route.
[0030]
The “alarm” key is an operation key for setting a display condition for setting an alarm condition for generating an alarm such as arrival at a predetermined point, for example, a point at a predetermined distance from the destination point JP1 in FIG.
[0031]
The wake setting operation part 63 is an operation part for mainly selecting a display form related to a wake or the like in the navigation related information displayed on the display screen 81, and includes a “map” key, “color” key, and “erase” key. -A "connect / disconnect" key is provided.
[0032]
The “map” key is an operation key for selecting display / non-display of the map in the display state of the wake display. The “color” key is an operation key for selecting each display color for the figure of the wake, for example, the ship wake CR1 and the past wake CR2 in FIG.
[0033]
The display color is selected by operating the “color” key to display the screen of the “color” selection menu, and the numbers corresponding to the respective colors displayed in the “color” selection menu are displayed as “0” to “ “9” is selected with each numeric key.
[0034]
The “erase” key is an operation key for temporarily erasing an image of a route, for example, an image of own ship track CR1 and past track CR2 in FIG. The “connect / disconnect” key is used to select an interval value for capturing the data of the ship position 10a into the track data memory 74 in order to draw a track, and to select the interval value ON state, that is, the “contact” state. An operation key for switching to an OFF state, that is, a “OFF” state.
[0035]
In the “contact” state by the “contact / disconnect” key, the interval value of the interval at which the data of the ship position 10a is taken into the wake data memory 74 is determined by a predetermined time interval on the menu screen by the “menu” key. For example, it can be set to capture every “20 seconds”, or can be set to capture every predetermined distance interval, for example, every movement “100 m”.
[0036]
Here, the display state of the wake display refers to a display state in which the wake display can be performed, and includes a display state in which the image of the wake is erased as described above.
[0037]
The mark setting operation portion 64 is mainly used for each predetermined point associated with the navigation-related information, for example, own ship position 10a, destination point JP1, FIG. This is the operation part that selects the figure and color of the mark that displays the attention points EV1, EV2, etc., and has the “color” key, “○” key, “△” key, “□” key, etc. .
[0038]
The “color” key is an operation key for performing an operation of selecting each display color for further distinguishing each mark figure into a plurality. Each display color is selected by selecting “color” in the wake setting operation portion 63. Select by the same operation. The “O” key, the “△” key, and the “□” key select one of these keys as a mark by operating one of these keys.
[0039]
These marks are always displayed at a constant size regardless of “enlargement” and “reduction” of the displayed image. Further, the mark for displaying the above-mentioned matters to be noted, for example, the points EV1 and EV2 where fishing is performed is referred to as an event mark.
[0040]
The numerical value setting operation part 65 is an operation part mainly for inputting a required numerical value or selecting a required item, for example, the type of “color” in the display state of the menu screen. Numeric keys of “0” to “9”, sign keys of “+” and “−” are provided.
[0041]
The screen setting operation portion 66 is an operation portion for mainly performing operations such as changing the scale of the screen and moving the screen in the display state of the wake display. The “center” key, “↑” key, “↓” key, “→” key, “←” key, “enlarge” key, “reduced” key, etc. are provided.
[0042]
The “center” key is an operation key for bringing the own ship position 10 a into a display state positioned at the center of the display screen 81. An “enlarge” key, that is, an operation key with four arrows pointing diagonally outward is an operation key for enlarging the displayed screen in a zoomed manner. The “reduction” key, that is, the operation keys with four arrows directed diagonally inward are operation keys for reducing the displayed screen in a zoomed manner.
[0043]
The “↑” key, “↓” key, “→” key, and “←” key indicate the intersection of the cursors CLX and CLY, that is, the designated point CP when the cursor is displayed by the “cursor” key described later. Acts as an operation key that moves in the up, down, left, or right direction corresponding to the arrow direction, and when the cursor is not displayed, the entire screen is in the up / down direction corresponding to the arrow direction・ Operates as an operation key that moves to the left or right.
[0044]
The power operation section 67 is an operation section for mainly turning on / off the power of the apparatus and adjusting the brightness of the display screen 81, and is provided with a “power” key, a “luminance” key, and the like.
[0045]
The “power” key 67A is an operation key for performing an operation of turning on / off the apparatus, that is, turning on or off the apparatus. The “luminance” key is an operation key for performing an operation for changing the luminance of the display screen.
[0046]
The arbitrary direction movement operation portion 68 is an operation portion that performs an operation of moving the entire displayed screen or the cursor CLX / CLY in an arbitrary direction, and is configured by, for example, a trackball or a joystick.
[0047]
When the cursor is displayed by the “cursor” key described later, when the cursor operates as an operation key for moving the intersection point of the cursors CLX and CLY, that is, the designated point CP in an arbitrary direction, and the cursor is not displayed. Operates as an operation key for moving the entire screen in an arbitrary direction.
[0048]
The cursor setting operation portion 69 is an operation portion for mainly performing operations such as display / non-display of the cursor, orientation of the display screen, and determination or cancellation of the selected / input condition / numerical value. “Navigation switching” key, “OK” key, “Cancel” key, etc. are provided.
[0049]
The “cursor” key is an operation key for switching the cursor CLX / CLY between a display state and a non-display state every time a key operation is performed. The “navigation switching” key is displayed every time the key operation is performed, “north direction display” in which the display image 81 is displayed with the direction directly above the display screen 81 as “north direction”, and the direction directly above the display screen 81 is “the bow direction”. ”Is an operation key for switching between“ heading direction display ”for displaying a display image as“ ”and“ destination direction display ”for displaying a display image with the direction directly above the display screen 81 as“ direction of destination point JP1 ”.
[0050]
The “decision” key is an operation key for “deciding” to operate according to a condition / numerical value selected or input by operating another operation key. The “Cancel” key is an operation key for canceling the above-mentioned conditions / numerical values.
[0051]
In place of the setting operation portion 60 of FIG. 15 as described above, there is a configuration in which a setting operation portion 60 as shown in FIG. 17 is provided below the display screen 81. In the configuration of FIG. 17, only the “menu” key in the screen selection operation portion 61 in FIG. 15 is arranged in the destination setting operation portion 62X in FIG. 17, and the operation by other keys is performed by the menu by the “menu” key 62A. A selection operation is performed on the screen.
[0052]
Further, only the operation by the “destination” key in the destination setting operation portion 62 in FIG. 15 is arranged in the destination setting operation portion 62X in FIG. 17, and the operation by other keys is performed by the menu screen by the “menu” key 62A. 15 so that all the operations in the numerical value setting operation portion 65 in FIG. 15 are selected on the menu screen by the “menu” key 62A.
[0053]
The screen setting operation portion 66 in FIG. 15 is removed from the movement operation by the “↑” key, “↓” key, “→” key, “←” in FIG. 15 as the screen setting operation portion 66X in FIG. In addition to the “enlarge” key 66D, the “center” key 66E, and the “reduced” key 66F as in FIG. 15, the “scale 1” key 66A, the “scale 2” key 66B, and the “scale 3” key 66C are newly added. It has been changed to provide.
[0054]
Note that the scales by the “scale 1” key 66A, the “scale 2” key 66B, and the “scale 3” key 66C can be set in advance on the menu screen by the “menu” key 62A.
[0055]
The wake setting operation part 63 in FIG. 15 is changed so that the operation by the “map” key in FIG. 15 is selected and operated on the menu screen by the “menu” key 62A, like the wake setting operation part 63X in FIG. The selection by the “color” key and the menu screen can be directly selected by the “wake color” changeover switch 63A of FIG.
[0056]
Further, in addition to the “connect / disconnect” key 63D / “track erase” key 63F of the track similar to FIG. 15, the “memory” key 63B / “call” key 63C of FIG. The operation for adding and storing the operation and the operation for calling the stored wake are directly displayed on the menu screen and can be operated on the menu screen.
[0057]
The mark setting operation portion 64 in FIG. 15 is arranged like the mark setting operation portion 64X in FIG. 17 in addition to the “◯” key 64B and “□” key 64C similar to FIG. In addition, a “▽” key 64F in which the “△” key in FIG. 17 is an inverted triangular figure is arranged, and selection by the “color” key and the menu screen is directly selected by the “mark” changeover switch 64A in FIG. In addition, a “mark erase” 64F is arranged so that a specified mark can be erased.
[0058]
17 includes the “menu” key 62A, the “destination” key 62B, the “cursor” key 62H, and the “cancel” key 62D and “enter” similar to FIG. In addition to the "key 62F" and "navigation switching" key 62G, a "running" key 62C, a "return" key 62J, and a "cancel" key 62E are added.
[0059]
The “running anchor” key 62C stores the own ship position 10a where the ship has lowered the dredger, and displays the distance and direction the ship has moved from that point due to waves and tides. The “Return” key 62J is used to move the screen displayed on the display screen 81 and move back to the original display state. The “Release” key 62E is used for the menu screen / purpose. Used to cancel the display / setting of the ground / running ground.
[0060]
Note that the arbitrary direction movement operation portion 68 of FIG. 17 is configured by a joystick type operation device, and the movement operation of the screen and cursor and the selection operation on the menu screen are all performed by the arbitrary direction movement operation portion 68. It is configured.
[0061]
Further, in the configuration shown in FIGS. 13 to 17, if necessary, an external storage portion 90 and its input / output port 91 are provided as shown by a dotted line in FIG. A configuration (hereinafter referred to as the second prior art) that stores and stores data in the device or stores and stores data in the apparatus in an external storage portion 90, for example, an IC card, is well known.
[0062]
In the case of the former configuration, for example, the map data memory 75 is removed, and the external storage portion 90 is configured as an IC card that stores map data in advance, and the IC card is stored in the input / output port 91. By providing a reading function, the map data is read from the external storage portion 90 and displayed.
[0063]
In the case of the latter configuration, for example, the external storage portion 90 is configured as an IC card that stores display data on the display screen 81 in the wake display state, and the IC card is stored in the input / output port 91. By providing the read function, the navigation related information in the past track display state is stored, and the past track display state is reproduced and displayed as necessary.
[0064]
In the [route deviation display configuration] in FIG. 16 above, the ship maneuvering state of the ship with respect to the planned route RT1 is displayed as the character deviation TT as the course deviation θ1, but instead of the display of such a course deviation, FIG. Distance range deviation display configuration], a predetermined distance width B1 centered on the planned route RT1, for example, a portion with a width of 100 m on each of the left and right sides is set as a predetermined route range, and the ship position 10a exceeds the distance width B1. Some distance widths B1a are displayed as a course deviation amount.
[0065]
In addition, a predetermined portion of the position measurement portion 10 in the first and second prior arts described above, for example, a calculation portion for obtaining data of own ship position 10a, own ship speed 10b, and current traveling direction 10c, and a navigation related information display portion 20 is a well-known configuration (hereinafter referred to as third prior art).
[0066]
In the radio navigation apparatus using satellite radio navigation, for example, GPS (Global Positioning System) radio navigation, the own ship speed 10b and the current traveling direction 10c are obtained from a plurality of mobile satellites orbiting at a speed of about 2 laps / day. It is measured based on the Doppler shift amount of the frequency of the satellite radio wave, and a configuration of a correction navigation is known that corrects an error due to a change in propagation characteristics in a high-frequency radio wave propagation path and further increases the measurement accuracy.
[0067]
As such correction navigation, for example, a radio navigation apparatus using DGPS (Differential Global Positioning System) and a radio navigation apparatus using WAAS / GPS (GPS augmented with the Area Augmentation System) are well known. This is called a satellite radio navigation device.
[0068]
In the configuration of the corrected satellite radio navigation apparatus using DGPS (hereinafter referred to as “fourth prior art”), the position value 10a measured at a plurality of dispersed measurement point stations, for example, coast stations, and the actual position value of the measurement point. The correction value of the Doppler shift amount data obtained by each satellite obtained based on the error value is transmitted by radio wave, and the correction value obtained by receiving the transmission radio wave of one station close to the current position of the ship By correcting the Doppler shift amount data by each satellite, the accuracy of the own ship position 10a, own ship speed 10b, and current traveling direction 10c is increased.
[0069]
In addition, the configuration of the corrected satellite radio navigation system using WAAS / GPS (hereinafter referred to as the fifth prior art) is the same correction as that of the coast station in the DGPS described above by a stationary satellite provided separately from the orbiting mobile satellite. Receives the radio wave of the correction value from each station provided by distributing multiple stations to measure the value and transmits it using the same radio wave as the multiple satellite radio waves to measure each stored correction value. By making the same correction as in the case of DGPS using the correction value obtained in this way, the accuracy of the own ship position 10a, own ship speed 10b, and current traveling direction 10c is increased.
[0070]
In the configuration of the satellite radio navigation according to the first to fifth prior arts described above, a moving satellite orbiting is used as a measurement satellite. However, by using radio navigation using a stationary satellite instead of such a mobile satellite, the own ship A configuration for obtaining the position 10a, the ship speed 10b, and the current traveling direction 10c (hereinafter referred to as the sixth prior art) is also well known.
[0071]
The own ship speed 10b and the current traveling direction 10c obtained by each of the above-mentioned radio navigation devices are not accurate when the own ship speed 10b is a low speed, for example, a speed of 5 knots or less. Thus, the present heading direction obtained by the heading measurement portion 15, for example, a gyrocompass, a magnetic compass, or the like, that is, the current heading direction 15a is obtained, and the predetermined own ship speed is 10b or less. Is well known in the art (hereinafter referred to as the seventh prior art) using the current bow direction 15a instead of the current traveling direction 10c.
[0072]
Further, as shown in FIGS. 18 and 19, in addition to the configurations of the first to seventh prior arts, a water depth measuring part 30, for example, a water depth measuring part by an acoustic sounding device or a fish finder is provided. The data of the water depth 30a obtained in the water depth measurement part 30 is taken into the water depth data memory 77 via the input / output port 15a, and the data of each water depth 30a and the own ship position 10a from which the water depth is obtained correspond to each other. A configuration (hereinafter referred to as “eighth prior art”) that reads out the stored contents and displays a figure of a cross section of the bottom of the ship from the ship position 10a in the ship track CR1 of FIG. It is well known.
[0073]
In FIG. 19, the water depth measurement portion 30 is configured by a fish finder, and a transmission signal from a sound wave transmission portion (not shown) provided therein is sent from a transducer 35 provided on the bottom of the ship. A signal amplified by an amplifying part (not shown) that amplifies the received signal obtained by transmitting the wave to the water and receiving the reflected wave obtained from the school of fish, the bottom of the water, etc. by the transmitter / receiver 35 to the required signal intensity. By processing by the water depth information processing part / display processing part (not shown), the fish detection display image 31a having the fish school and the bottom image can be displayed as shown in the display screen 31 of FIG. Is.
[0074]
Then, the water depth data corresponding to the current water depth 31a portion of the fish detection display image 31a is the current water depth 30a and corresponds to the own ship position 10a from which the water depth 30a was obtained via the input / output port 71A of FIG. And stored in the water depth data memory 77.
[0075]
Needless to say, the water depth measurement portion 30 in this configuration, that is, the setting operation portion 32 of the fish detection device, is provided with operation portions necessary for fish detection and water depth measurement.
[0076]
Therefore, the data of the own ship position 10a is taken every predetermined time or every predetermined distance to create the own ship track CR1, and the data of the water depth 30a for each own ship position 10a. Can be stored in the water depth data memory 77, so that the figure of the water bottom cross section in which the image of the water bottom in the fish detection display image 31a is formed into a folded figure can be displayed.
[0077]
In the case of the configuration for displaying the bottom section, an operation location for displaying the bottom profile is provided at an appropriate location in the setting operation portion 60 of FIGS. 15 and 17, or in an appropriate menu screen. Is configured to provide a selection operation location for displaying a cross section of the bottom of the water.
[0078]
In addition, a configuration (hereinafter referred to as the ninth prior art) in which an acoustic sounding device is provided in place of the fish finder in the water depth measurement portion 30 in the configuration of the eighth prior art in FIG. 19 is also well known.
[0079]
Then, the acoustic sounding device is configured to output the current water depth 31a only as the current water depth 30a without displaying the fish detection image 31a, and, if necessary, the water depth 30a. A display portion for displaying characters is provided.
[0080]
A configuration (hereinafter referred to as “10th prior art”) in which a portion excluding the transmitter / receiver 35 and the portion attached thereto is provided inside the navigation-related information display portion 20 in such an acoustic sounding device is also well known.
[0081]
Further, as shown in FIGS. 20 and 21, the water depth measurement part 30 in the structure of FIG. 19, for example, a water depth measurement part by a fish detection device and a navigation related information display part 20 are combined into one body (hereinafter referred to as eleventh). The configuration of the prior art is well known.
[0082]
In FIG. 20, a navigation related information display portion + water depth measurement portion (20 + 30) is a portion in which the water depth measurement portion 30 by the fish finder of FIG. 19 and the navigation related information display portion 20 are combined.
[0083]
Further, the setting operation portion (60 + 32) is a combination of the setting operation portion 60 and the setting operation portion 32 of FIG. 19, and the display screen (81 + 31) is displayed on the display screen (81 + 31) by the operation of the setting operation portion (60 + 32). 16, the navigation related information display image as shown in FIG. 16 and the fish detection display image as shown in FIG. 19 are displayed in parallel, only the navigation related information display image is displayed, or only the fish detection display image is displayed. It is configured to display.
[0084]
The setting operation portion (60 + 32) is configured as a remote operation type by cable connection or a remote operation type by wireless communication such as infrared communication as shown in FIG. 21, but according to the configuration of FIG. 15 or FIG. The setting operation portion 60 is provided with operation portions necessary for performing fish school detection.
[0085]
In FIG. 21, the keys with the same or similar character symbols as the character symbols attached to the keys of FIGS. 15 and 17 are the same as the character symbols attached to the keys of FIGS. This is an operation key for displaying a similar image.
[0086]
“Sensitivity” key is an operation key for increasing / decreasing the reception sensitivity of fish detection, “Sounding range” key is an operation key for setting the range for detecting fish school / bottom, and “Plotter” key is navigation as shown in FIG. An operation key for selecting and displaying only the related information display image, and a “fish search” key are operation keys for selecting and displaying only the fish detection display image as shown in FIG.
[0087]
The “pu / fish” key is an operation key for displaying a navigation related information display image as shown in FIG. 16 and a fish detection display image as shown in FIG. 19 in parallel. The “graph” key is a key for selecting and displaying either the water temperature graph or the bottom graph. When the water temperature graph is selected by operating the “graph” key, the transmitter / receiver 35 is selected. When the water temperature detected by an attached water temperature detector (not shown) is displayed as a line graph and the bottom graph is selected, the bottom of the line graph is the same as the bottom section in the configuration of the eighth prior art. Display a cross section.
[0088]
[Problems to be solved by the invention]
    [First issue]
  In the configuration of the first prior art to the eleventh prior art, since the iso-depth line Ld is displayed by the map data stored in the map data memory 75 or the external storage portion 90, the sea area where the ship navigates, Or you can know the sea area of the target depth.
[0089]
  Furthermore, although it is not included in the map data, it is extremely convenient if there is an iso-depth line such as the depth necessary for the ship, for example, the depth of the sea area used as a fishing ground. The contour depth Ld of the map data is created by a public institution creating water depth data by measuring the water depth at each point where the sea area is divided into fine grids, and connecting the points of equal depth. If you do the same work on the ship, you can make the required equal depth.
[0090]
  However, such a method of creating an iso-depth line has a disadvantage in that it requires a heavy lifting work for that purpose and requires considerable investment.
  For this reason, there exists a subject that provision of the navigation apparatus without such an inconvenience is desired.
[0094]
[Means for Solving the Problems]
  In the present invention, the above [first problem] is as described above.
  An image of navigation-related information including iso-depth lines based on the position measurement data of the ship position obtained from the position measurement part and the water depth measurement data of the depth value corresponding to the ship position obtained from the water depth measurement part. In a navigation device that can display on the display screen,
[0109]
In addition to setting a predetermined water depth value for creating the isodepth line, a first storage portion for storing a predetermined water depth position value corresponding to the predetermined water depth value is provided, and the water depth measurement data is Predetermined water depth position value storage means for storing the position value of the position measurement data at the time when the predetermined water depth value is reached in the first storage part as the predetermined water depth position value;
[0110]
A line for storing, in the second storage part, line segment creation data for creating a line segment that connects only the points of the predetermined water depth position value stored in the first storage part and those having a predetermined distance value or less. Minute storage means;
[0111]
Iso-depth line display means for displaying the iso-depth line on the display screen based on the data obtained by reading the storage contents of the first storage portion and the second storage portion.
A twelfth configuration for providing
[0112]
In this twelfth configuration,
A thirteenth configuration in which the graphic displaying the points connected by the line segments is displayed as a small graphic, and the graphic displaying the points not connected by the line segments is displayed as a large graphic,
[0113]
In the twelfth and thirteenth configurations described above,
The graphic that displays the points connected by the above line segments is displayed at a constant luminance, and the graphic that displays the points that are not connected by the above line segments is displayed with a luminance that is brighter than the normal luminance or blinking. A fourteenth configuration,
[0114]
In the twelfth to fourteenth configurations described above,
The above predetermined water depth value is set to a depth value different from the water depth value of the map depth line, that is, the contour depth included in the map data stored in advance, and the above depth line is created. Merge display means for merging and displaying the iso-depth line and the above-mentioned map iso-depth line
A fifteenth configuration with the addition of
[0115]
In the twelfth to fifteenth configurations described above,
The predetermined water depth value is set as a plurality of predetermined water depth values, and the first memory portion and the second memory portion correspond to the plurality of predetermined water depth values. A sixteenth configuration configured to display a plurality of the above-mentioned iso-depth lines on the display screen,
[0116]
In the twelfth to sixteenth configurations described above,
Line segment erasure adding means for erasing the storage of the line segment creation data by designating the figure or the line segment for displaying the point, or adding the memory of the line segment creation data
A seventeenth configuration with the addition of
[0117]
In the twelfth to seventeenth configurations described above,
An 18th configuration in which the position measurement part is constituted by a satellite radio navigation apparatus or a correction satellite radio navigation apparatus, and the water depth measurement part is constituted by a fish finder.
Is the solution.
[0118]
DETAILED DESCRIPTION OF THE INVENTION
As an embodiment of the present invention, an example in which the present invention is applied to the configurations of the first to eleventh prior arts will be described.
[0119]
【Example】
    [First embodiment]
  The first embodiment will be described below with reference to FIGS.In the first configuration, an image of navigation-related information including the own ship track including the own ship position, the current traveling direction or bow direction of the own ship, and a plurality of iso-depth lines can be displayed on the display screen. In the navigation device according to the above, based on each water depth data corresponding to each point for displaying the plurality of contour lines, an image of the water bottom cross section on the front side in the traveling direction or the bow direction is displayed on the display screen. It is the structure which provides the bottom cross-section display means displayed on the top. In the second configuration, in the first configuration, only when a predetermined operation is performed, a part of the image of the navigation related information is changed to the image of the water bottom cross section, or the navigation related information In this configuration, the image of the cross section of the water bottom is displayed instead of the entire image. The third configuration is a configuration in which in the first configuration and the second configuration described above, the image of the water bottom cross section over a range of a predetermined distance from the own ship position is displayed. The fourth configuration is a configuration in which, in the first to third configurations described above, the position measurement portion is configured by a satellite radio navigation device or a corrected satellite radio navigation device.The first embodiment has a configuration in which the portion using the bow direction in the first to fourth configurations is excluded from the configurations of the first to sixth technologies described with reference to FIGS. The parts different from the structures of the first to sixth prior arts described above are the following parts. Note that the past track CR2 in FIG. 2 is not displayed.
[0120]
First, each point for displaying a plurality of isodepth lines included in the map data stored in the map data memory 75 or the external storage portion 90, for example, the isodepth lines Ld1 to Ld4 in FIG. 2, a front water bottom cross-sectional image in the current traveling direction 10 c, for example, a front water bottom cross-sectional image 82 </ b> Y of FIG. 2 is displayed on the display screen 81.
[0121]
Second, an operation part for displaying the front water bottom cross section on the setting operation part 60, for example, an operation for displaying the front water bottom cross section with the "front water bottom" key 69X indicated by a dotted line in FIGS. Only when, a part of the navigation-related information image 82X on the display screen 81 in FIG. 2 is changed to the front water bottom cross-sectional image 82Y, or the front water bottom cross-sectional image 82Y is enlarged instead of the entire navigation-related information image 82X. This is a place where an image is displayed.
[0122]
Third, the front water bottom cross-sectional image 82Y is displayed in a range of a predetermined distance from the own ship position 10a, for example, an image of a portion over the range of 0 to 1.0 km of the front water bottom cross-sectional image 82Y of FIG. It is a place.
[0123]
Fourthly, the position measuring portion 10 is a portion configured by a satellite radio navigation device, for example, a GPS radio navigation device, or a correction satellite radio navigation device, that is, a DGPS radio navigation or WAAS satellite radio navigation.
[0124]
That is, the configuration of the first embodiment is generally as follows.
Includes own ship track CR1 including own ship position 10a, current traveling direction of own ship, for example, current traveling direction 10c, and a plurality of iso-depth lines, for example, iso-depth lines Ld1 to Ld4 included in map data In the navigation apparatus 100 that can display an image of navigation-related information, for example, a navigation-related information image 82X on the display screen 81,
[0125]
Based on each water depth data corresponding to each point for displaying the plurality of iso-depth lines, for example, iso-depth lines Ld1 to Ld4, an image of the front water bottom section in the traveling direction 10c, for example, the front Water bottom cross-section display means for displaying the water bottom cross-sectional image 82Y on the display screen 81.
This constitutes the first configuration provided with.
[0126]
Secondly, in the first configuration,
Only when a predetermined operation is performed, for example, only when an operation for displaying a front water bottom cross section is performed by the “front water bottom” key 69X, a part of the navigation related information image, for example, a part of the navigation related information image 82X is displayed. For example, a front water bottom cross-sectional image 82Y, or instead of the navigation-related information image, for example, the navigation-related information image 82X, the water bottom cross-sectional image, for example, the front water bottom image. The second configuration is configured to display an enlarged image of the cross-sectional image 82Y.
[0127]
Thirdly, in the first configuration and the second configuration described above,
An image of the water bottom cross section over a range of a predetermined distance from the own ship position 10a, for example, an image of a portion of the front water bottom cross section image 82Y over a range of 0 to 1.0 km is displayed. It constitutes a configuration.
[0128]
Fourthly, in the first to third configurations described above,
The position measurement portion 10 is configured as the fourth configuration described above, which is configured by a satellite radio navigation device, for example, a GPS radio navigation device, or a correction satellite radio navigation device, that is, a DGPS radio navigation or a WAAS satellite radio navigation. It is what.
[0129]
Specifically, the above-described control processing flow program obtained by removing steps SP1 and SP11 from the control processing flow of FIG. 3 is stored in advance in the processing memory 72 in the configuration of FIG. It is configured to be able to display according to each configuration.
[0130]
This control processing flow is configured as a subroutine of a main control processing routine for performing the entire control processing in the navigation information processing section 70. From the main control processing routine, for example, this control processing flow is performed every second. It is configured to migrate to.
[0131]
[Explanation of control processing flow]
Hereinafter, a control process flow in which the steps SP1 and SP11 are removed from the control process flow of FIG. 3 will be described. Therefore, the control processing flow here starts from step SP2.
[0132]
In step SP2, the data of the current traveling direction 10c given from the position measurement part 10, for example, a satellite radio navigation device, for example, the current traveling direction 12 ° 15 'of FIG. 2 is taken in, and the process proceeds to the next step SP3. .
[0133]
Here, in the case of only the satellite radio navigation apparatus or the correction satellite radio navigation apparatus as in the first embodiment, when the own ship speed 10b is equal to or lower than a predetermined speed, for example, 5 knots or less, the current progress is made. Since the data of the direction 10c is configured not to be output, the process proceeds to the next step SP3 only when the own ship speed 10b exceeds the predetermined speed and the data of the current traveling direction 10c is obtained. Will do.
[0134]
In step SP3, it is determined whether or not there is a signal for performing an operation for displaying a front water bottom section with the “front water bottom” key 69X, that is, a front water bottom section display signal. When there is a front water bottom section display signal, the process proceeds to the next step SP4, and when not, the process returns to a predetermined step position of the main control processing routine.
[0135]
In step SP4, based on the map data stored in the map data memory 75 and the current traveling direction 10c, the iso-depth lines Ld1 to Ld5 / shoreline M1 in FIG. 2 intersect with the current traveling direction 10c. The data at the positions P21 to P26 are arithmetically processed, taken in and stored in the work memory 73, and then the process proceeds to the next step SP5.
[0136]
In step SP5, by calculating the distances from the ship position 10a to the positions P21 to P26 based on the ship position 10a and the data of the positions P21 to P26, the data of each distance and the isodepth lines Ld1 to Ld1 Based on the depth value data of Ld5, that is, the water depth data, image data for displaying the water bottom shape as a polygonal line image is generated, for example, like the front water bottom cross-sectional image 82Y of FIG.
[0137]
Here, proportional distribution is made from the values of depth (m) and distance (km) before and after the ship position 10a so that the ship position 10a of the front water bottom cross-sectional image 82Y, that is, the distance (km) is zero. For example, the water depth of the ship position 10a, that is, the current water depth 46m can be calculated and displayed as shown in the lower right column of the display screen 81 as shown in FIG.
[0138]
Further, the image data is taken in and stored in the working memory 73 and given to the display processing portion 80 to display the front water bottom cross-sectional image 82Y on the water bottom cross-section display portion 81A of FIG. 2, and then to the next step SP6. Transition.
[0139]
The storage of data in the above step SP4 and step SP5 may be performed by providing a front water bottom data memory 78 as shown by the dotted line in FIG.
[0140]
Further, the bottom section display portion 81A is configured to perform display processing in the display processing portion 80 so as to be moved to a position where the image display of the display area in the ship traveling direction 10c is not hindered and displayed.
[0141]
Further, if necessary, a front water bottom cross-sectional image 82Y is displayed instead of the navigation-related display screen 82X, or such a display and a water bottom cross-section display portion 81A is provided at an appropriate corner as shown in FIG. The display to be performed may be selected by a menu screen displayed by operating the “front water bottom” key 69X, for example.
[0142]
Further, if necessary, the front water bottom cross-sectional image 82Y is set in advance so as to display an image of a portion ranging from a range of a predetermined distance from the own ship position 10a, for example, a range of 0 to 1.0 km. Or to be selected by a menu screen.
[0143]
In step SP6, it is determined whether or not there is a signal for erasing the display of the front water bottom section, that is, a front water bottom section erasing signal, using the “front water bottom” key 69X or an appropriate operation key. When there is a front water bottom section erasing signal, the process proceeds to the next step SP7, and when not, the process returns to step SP2. In the first embodiment, since step SP1 is not provided, the process returns from step SP6 to step SP2.
[0144]
In step SP7, after the front water bottom cross-sectional image 82Y is deleted, the process returns to a predetermined step position of the main control processing routine. That is, on the display screen 81, a portion of the navigation related information display image 82X hidden by the bottom section display portion 81A is displayed.
[0145]
  Therefore, according to the configuration of the first embodiment, when a predetermined operation, for example, an operation using the “front water bottom” key 69X is performed, the own ship position is not required even if the navigation state follows the past wake CR2. If you can know the water depth ahead of 10a, the distance to reach the target water depth of 30aSayFeatures can be obtained.
[0146]
[Second Embodiment]
The second embodiment will be described below with reference to FIGS. The differences between the configuration of the second embodiment and the configuration of the first embodiment are as follows.
[0147]
First, as in the configuration of the seventh prior art, a heading measurement portion 15, for example, a gyrocompass or a magnetic compass is provided, and when a predetermined own ship speed 10b, for example, 5 knots or less, The forward water bottom cross-sectional image 82Y is displayed using the bow direction 15a obtained by the heading measurement portion 15, and when a predetermined own ship speed 10b, for example, 5 knots is exceeded, the position measurement portion 10, for example, a satellite radio navigation device or This is a portion configured to display the forward water bottom cross-sectional image 82Y using the own ship traveling direction 10c obtained by the corrected satellite radio navigation device.
[0148]
Second, in order to perform the above display, the entire program of the control processing flow of FIG. 3 is stored in advance in the processing memory 72 in the configuration of FIG.
[0149]
The control process flow is configured as a subroutine similar to that in the first embodiment, and the control process flow is shifted from the main control process routine to, for example, every second. It is configured.
[0150]
[Explanation of control processing flow]
Hereinafter, the control processing flow of FIG. 3 will be described.
In step SP1, it is determined whether or not a predetermined own ship speed is 10b, for example, 5 knots or less. When the own ship speed is 10b or less, the process proceeds to step SP11, and when not, the process proceeds to the next step SP2.
[0151]
In step SP2, the same control process as in the first embodiment is performed, and the process proceeds to step SP3. In addition, since the predetermined ship speed 10b is exceeded here, the own ship traveling direction 10c is obtained.
[0152]
In step SP11, the heading direction measurement portion 15, for example, the data in the bow direction 15a provided from the gyrocompass or the magnetic compass, for example, the bow direction 12 ° 15 ′ in FIG. 2 is fetched, and the process proceeds to step SP3. Note that the values of the own ship traveling direction 10c and the bow direction 15a are actually different values, but here, they are set to the same value for the convenience of the drawings.
[0153]
◆ In step SP3 to step SP7, the same control processing as in the first embodiment is performed. However, if the processing has passed through step SP11, the calculation processing in steps SP4 and SP5 is performed in the own ship traveling direction. Instead of the data of 10c, the data of the bow direction 15a is used.
[0154]
In other words, the configuration of the second embodiment generally includes, in the first place, instead of the first configuration in the first embodiment,
In a navigation apparatus that can display an image of navigation-related information including the own ship track including the own ship position, the current traveling direction or bow direction of the own ship, and a plurality of iso-depth lines on the display screen,
[0155]
Based on each water depth data corresponding to each point for displaying the plurality of isodepth lines, a water bottom cross section that displays an image of the water bottom cross section on the front side in the traveling direction or the bow direction on the display screen. Display means
A first configuration providing:
[0156]
The own ship track CR1 including the own ship position 10a, the current traveling direction of the own ship, for example, the current traveling direction 10c or the bow direction 15a, and a plurality of iso-depth lines, for example, iso-depth lines included in the map data In the navigation apparatus 100 configured to display an image of navigation related information including Ld1 to Ld4, for example, a navigation related information image 82X on the display screen 81,
[0157]
Based on the water depth data corresponding to each point for displaying the plurality of iso-depth lines, for example, iso-depth lines Ld1 to Ld4, the water bottom cross section on the front side in the traveling direction 10c or the bow direction 15a , For example, a water bottom section display means for displaying a front water bottom section image 82Y on the display screen 81.
That is, the above-described first configuration is provided.
[0158]
  Second, as in the first embodiment,
  This constitutes the second to fourth configurations described above.
  And according to these 1st structure-4th structure, in the case of said 1st Example
Features similar to features can be obtained.
[0159]
    [Third embodiment]
  The third embodiment will be described below with reference to FIGS.The first configuration to the fourth configuration are the configurations described in the first embodiment. The fifth configuration is obtained by the water depth measurement portion and the water depth measurement portion in the first configuration to the third configuration, as the water depth data, and the water depth data by the iso-depth line included in the map data stored in advance. It is the structure which used each water depth data. The sixth configuration is a configuration in which, in the fifth configuration described above, the position measurement portion is configured by a satellite radio navigation device or a correction satellite radio navigation device, and the water depth measurement portion is configured by a fish finder. .The third embodiment has a configuration in which the portion using the bow direction in the first to sixth configurations is excluded from the configurations of the seventh to eleventh conventional technologies described with reference to FIGS. The part which is applied and is different from the structure of the first embodiment is the following part. Note that the past track CR2 in FIG. 2 is displayed.
[0160]
First, each point for displaying a plurality of isodepth lines included in the map data stored in the map data memory 75 or the external storage portion 90, for example, the isodepth lines Ld1 to Ld4 in FIG. In addition to the water depth data corresponding to, in addition to the water depth measurement part 30, for example, each water depth data using the data of the water depth 30a obtained by the fish finder, a water bottom cross-sectional image of the front side in the current traveling direction 10c For example, the front water bottom cross-sectional image 82 </ b> Y of FIG. 2 is displayed on the display screen 81.
[0161]
Second, when the past wake CR2 is stored in the wake data memory 74 as the water depth 30a data, the position value data and the water depth 30a data are associated with each other as the wake data. 77, the water depth data stored in 77, and the data of the water depth 30a at the ship position 10a, that is, the data of the current water depth. In addition, when the water depth data which measured the water depth 30a only with respect to the predetermined | prescribed point are memorize | stored, it is comprised so that the water depth data may also be included.
[0162]
Specifically, the above-described control processing flow program in which the steps SP1 and SP11 are removed from the control processing flow of FIG. 5 is stored in advance in the processing memory 72 in the configuration of FIG. It is configured to be able to display according to each configuration.
[0163]
This control processing flow is configured as a subroutine similar to that in the first embodiment, and is configured to shift from the main control processing routine to this control processing flow, for example, every second. It is.
[0164]
[Explanation of control processing flow]
Hereinafter, a control processing flow in which the steps SP1 and SP11 are removed from the control processing flow of FIG. 5 will be described. Therefore, the control processing flow here starts from step SP2.
[0165]
In steps SP2 to SP4, control processing similar to that in steps SP2 to SP4 in FIG. 3 in the first embodiment is performed, and the process proceeds to the next step SP5.
[0166]
The front water bottom section erasing signal determined in step SP3 is, for example, “front” provided in the setting operation portion 60 in FIG. 19 or the setting operation portion (60 + 32) in FIG. 21 as in the case of the first embodiment. The front water bottom section erasing signal is provided based on the operation of the “water bottom” key 69X.
[0167]
In step SP5, the depth data stored in the depth data memory 77 in association with the position data of the track data and the data of the depth 30a in association with the storage of the past track CR2, and the own ship position Data of water depth 30a in 10a, that is, data of current water depth,
Further, it is simply determined whether or not the water depth data obtained by measuring the water depth 30a with respect to the predetermined point is stored for the own ship traveling direction 10c. When the water depth data is stored for the own ship traveling direction 10c, the process proceeds to the next step SP6, and otherwise, the process proceeds to step SP7.
[0168]
◆ In step SP6, each of the above-mentioned water depth data and position data corresponding thereto, for example, position value data / water depth data at a point where the past wake CR2 and the current traveling direction 10c intersect, and the own ship position 10a The water depth data is taken into the work memory 73 and the process proceeds to the next step SP7.
[0169]
In step SP7, as in step SP5, each distance from own ship position 10a to positions P21 to P26 is calculated based on the position data of own ship position 10a and positions P21 to P26, and the past captured in step SP6. When there is a position P27 of the wake CR2, similarly for the position P27, by calculating the distance, the depth values of the data of the distances, the isodepth lines Ld1 to Ld5, and the position P27 of the past wake CR2 are calculated. For example, instead of the front water bottom cross-sectional image 82Y of FIG. 2, image data for displaying the front water bottom cross-sectional image 82Y as shown in [main part display configuration] in FIG. Create and process.
[0170]
Further, the image data is taken in and stored in the work memory 73 and is given to the display processing portion 80, and the front water bottom cross section image 82Y of FIG. 5 is displayed on the water bottom cross section display portion 81A of FIG. The process proceeds to step SP8.
[0171]
Here, where the front water bottom cross-sectional image 82Y of FIG. 5 is different from the front water bottom cross-sectional image 82Y of FIG. 2, the water depth data of the ship position 10a is displayed as the water depth data by the water depth 30a obtained by the water depth measurement portion 30, Further, between the current water depth data 46m of the own ship position 10a and the water depth data 40m of the iso-depth line Ld4, a place where a figure of a location based on the water depth data of the position P27 of the past wake CR2 such as 43m data is displayed. It is. In addition, when the water depth data of the iso-depth line Ld5 differs from the water depth 30a measured in the water depth measurement part 30, you may make it display with the water depth data of the water depth 30a.
[0172]
In addition, as in the case of the first embodiment, the storage of data in the above steps SP4, SP6, and SP7 is performed by providing the front water bottom data memory 78 as shown by the dotted line in FIG. It may be.
[0173]
In step SP8 and step SP9, the same control processing as that in step SP6 and step SP7 in the case of the first embodiment shown in FIG. 3 is performed.
[0174]
That is, the configuration of the third embodiment generally includes the first configuration to the fourth configuration according to the first embodiment described above, and further, Second,
In the first to third configurations according to the configuration of the first embodiment,
As each of the above-mentioned water depth data, map data stored in advance, for example, the above-mentioned iso-depth lines included in the map data stored in the map data memory 75 or the external storage portion 90, for example, iso-depth lines Ld1 to Ld5 Each water depth data and each water depth data obtained by the water depth measuring portion 30, for example, water depth data at the own ship position 10 a, that is, current water depth data, and past watercraft CR 2 are stored in the water depth data memory 77. The fifth configuration described above is configured to use the stored water depth data.
[0175]
Thirdly, in the fifth configuration,
The position measuring portion 10 is configured by a satellite radio navigation device or a corrected satellite radio navigation device, and the water depth measuring portion 10 is configured by the sixth configuration in which the fish detecting device is configured. It is.
[0176]
  And according to these 1st structure-6th structure, in the case of said 1st Example
Features similar to those of.
[0177]
[Fourth embodiment]
The fourth embodiment will be described below with reference to FIGS. The difference between the configuration of the fourth embodiment and the configuration of the third embodiment is as follows.
[0178]
First, as in the case of the second embodiment, a heading measurement portion 15, for example, a gyrocompass or a magnetic compass is provided, and when a predetermined own ship speed 10b, for example, 5 knots or less, The forward water bottom cross-sectional image 82Y is displayed using the bow direction 15a obtained by the heading measurement portion 15, and when a predetermined own ship speed 10b, for example, 5 knots is exceeded, the position measurement portion 10, for example, a satellite radio navigation device or This is a portion configured to display the forward water bottom cross-sectional image 82Y using the own ship traveling direction 10c obtained by the corrected satellite radio navigation device.
[0179]
Second, in order to perform the above-described display, the entire program of the control processing flow of FIG. 5 is configured to be stored in advance in the processing memory 72 in the configuration of FIG.
[0180]
The control process flow is configured as a subroutine similar to that in the first embodiment, and the control process flow is shifted from the main control process routine to, for example, every second. It is configured.
[0181]
[Explanation of control processing flow]
Hereinafter, the control processing flow of FIG. 5 will be described.
In step SP1, step SP2, and step SP11, the same control process as in the second embodiment shown in FIG. 3 is performed, and the process proceeds to the next step SP3.
In steps SP3 to SP9, the same control process as in the third embodiment is performed.
[0182]
That is, the configuration of the fourth embodiment generally includes the first configuration to the fourth configuration according to the second embodiment described above.
Secondly,
In the first to third configurations according to the configuration of the second embodiment, the fifth configuration and the sixth configuration according to the third embodiment are configured.
[0183]
  And according to these 1st structure-6th structure, in the case of said 1st Example
Features similar to those of.
[0184]
    [Fifth embodiment]
  The fifth embodiment will be described below with reference to FIGS.In the seventh configuration, the iso-depth line is obtained based on the position measurement data of the ship position obtained by the position measurement part and the water depth measurement data of the depth value corresponding to the ship position obtained by the water depth measurement part. In a navigation device that can display an image of navigation-related information including a display screen,
In addition to setting a predetermined water depth value for creating the isodepth line, a first storage portion for storing a predetermined water depth position value corresponding to the predetermined water depth value is provided, and the water depth measurement data is Predetermined water depth position value storage means for storing the position value of the position measurement data at the time when the predetermined water depth value is reached in the first storage portion as the predetermined water depth position value; and Line segment storage means for storing, in the second storage portion, line segment creation data for creating a line segment connecting the points of the predetermined water depth position value stored in the storage portion, and the first storage portion described above And the iso-depth line display means for displaying the iso-depth line on the display screen based on the data obtained by reading the stored contents of the memory and the second storage portion. In an eighth configuration, the predetermined water depth value in the seventh configuration is set to a depth value different from the contour depth included in the map data stored in advance, that is, the depth value of the map contour depth line. In addition, the above-described iso-depth line is created, and a merged display unit that merges and displays the iso-depth line and the map iso-depth line is added. In the ninth configuration, in the seventh configuration and the eighth configuration, the predetermined water depth value is set to a plurality of predetermined water depth values, the first storage portion, and the first configuration By providing storage portions corresponding to the plurality of predetermined water depth values in the two storage portions, a plurality of the isodepth lines are displayed on the display screen. In the seventh configuration to the ninth configuration, the tenth configuration specifies the figure or the line segment that displays the point, and erases the storage of the line segment creation data, or This is a configuration in which line segment erasure adding means for adding storage of the line segment creation data is added. In an eleventh configuration, in the seventh to tenth configurations described above, the position measurement part is configured by a satellite radio navigation device or a correction radio navigation device, and the water depth measurement unit is configured by a fish detection device. This is the configuration.The configuration of the fifth embodiment is obtained by applying the seventh configuration to the eleventh configuration to the configurations of the seventh conventional technology to the eleventh conventional technology described with reference to FIGS. The following points are different from the configurations of the seventh prior art to the eleventh prior art.
[0185]
First, new iso-depth lines, that is, iso-depth lines included in the map data stored in the map data memory 75, that is, ready-made / iso-depth lines, such as the ready-made / While setting a predetermined water depth value, for example, a water depth value of 20 m, for creating an iso-depth line having a different depth from the iso-depth lines Ld1 and Ld5, for example, the creation / iso-depth line Ld11 of FIG.
[0186]
These water depth value data are stored in the storage portion, for example, a location configured to be stored in the set water depth data memory 77Y of FIG. In addition, when map data does not contain an iso-depth line, said water depth value will set the appropriate water depth value desired.
[0187]
Secondly, a position where a set predetermined water depth value, for example, a water depth of 20 m is obtained, for example, each position value of the predetermined water depth position LP1 in FIG. 7, that is, each own ship obtained by the position measuring portion 10 at that position. The data of the position 10a is stored in the storage part as the data of the predetermined water depth position value, for example, in a place configured to store in the set water depth data memory 77Y of FIG. is there.
[0188]
Third, predetermined water depth position value data stored in the set water depth data memory 77Y, for example, latitude and longitude values (A1) to (A6), the position values of the predetermined water depth position LP1 are in a predetermined order. For example, it is rearranged so that the longitude values are arranged in ascending order, for example, in the storage portion corresponding to the “position data” column of the iso-depth data memory 79 in FIG. Thus, the location is configured to memorize.
[0189]
Fourth, a point of data of the predetermined water depth position value, that is, a line segment connecting each point of the predetermined water depth position LP1, for example, each connecting line segment LL1 of FIG. Line segment creation data, for example, “present” data is stored in a storage portion corresponding to the “line segment” column of the iso-depth line data memory 79, for example, in the form of a table as shown in FIG. It is the place comprised as follows.
[0190]
Thirdly, the storage contents of the storage portion corresponding to the “position data” column of the isodepth line data memory 79 and the storage contents of the storage portion corresponding to the “line segment” column of the isodepth line data memory 79 are read. Each of the obtained data is given to the display processing portion 80 for display processing, whereby the creation / isodepth line Ld11 is displayed on the display screen 81.
[0191]
Fourthly, when displaying the above-mentioned creation / concentration lines Ld11, the ready-made / isodepth lines Ld1 and Ld5 are included in the map data stored in advance in the map data memory 75 or the external storage portion 90. At this time, the created / iso-depth lines Ld11 and the ready-made / iso-depth lines Ld1 and Ld5 are given to the display processing portion 80 for display processing, so that these iso-depth lines Ld11, Ld1, and Ld5 are displayed on the display screen 81. It is the place comprised so that it may merge and display.
[0192]
5thly, the figure which displays the point of each predetermined water depth position LP1-LP3 currently displayed on the display screen 81, for example, a circle-shaped figure, or a line segment, for example, connecting line segment LL1-LL3, For example, by designating using the designated point CP by the cursor CLX / CLY, the “segmentation” data stored in the “segment” column of the above-described segment creation data, for example, the iso-line segment data memory 79, is stored. This is a location configured so that the storage can be erased or the storage of “present” data can be added.
[0193]
Sixth, a predetermined water depth value is set to a plurality of predetermined water depth values, for example, water depth values of 20 m, 30 m, and 40 m, and corresponds to the “position data” column of the above-mentioned isodepth line data memory 79. And a memory portion corresponding to a “line segment” column of the above-mentioned iso-depth line data memory 79, a memory corresponding to a plurality of predetermined water depth values, for example, water depth values of 20 m, 30 m, and 40 m. A portion is provided so that a plurality of creation / isodepth lines Ld11, Ld12, Ld13, and the like can be displayed on the display screen 81.
[0194]
That is, the configuration of the fifth embodiment is generally as follows.
Based on the position measurement data of the ship position 10a obtained by the position measurement part 10 and the water depth measurement data 30a of the water depth value corresponding to the ship position 10a obtained by the water depth measurement part 30, an iso-depth line Ld11 is obtained. In the navigation device 100 that can display an image of navigation-related information including it on the display screen 81,
[0195]
A first memory for setting a predetermined water depth value for creating the isodepth line Ld11, for example, a water depth of 20 m, and storing a predetermined water depth value, for example, a predetermined water depth position value corresponding to the water depth of 20 m. For example, a storage portion corresponding to the “position data” field of the iso-depth line data memory 79 is provided,
[0196]
The position value 10a of the position measurement data when the water depth measurement data 30a reaches the predetermined water depth value, for example, 20 m, is converted into the predetermined water depth position values, for example, latitude and longitude values (A1) to (A6). ) As a predetermined water depth position value storage means for storing in the first storage part, for example, a storage part corresponding to the “position data” field of the iso-depth data memory 79;
[0197]
The predetermined water depth position values, for example, latitude / longitude values (A1) to (A6) stored in the first storage portion, for example, the storage portion corresponding to the “position data” column of the iso-depth line data memory 79. Line segment creation data for creating a line segment connecting the points, for example, the connecting line segment LL1, for example, “Yes” data is stored in the second storage portion, for example, “isodepth line data memory 79”. Line segment storage means for storing in a storage portion corresponding to the “line segment” field;
[0198]
The first storage portion, for example, the storage portion corresponding to the “position data” column of the iso-depth line data memory 79, and the second storage portion, for example, the “line” of the iso-depth line data memory 79. The iso-depth line display means for displaying the iso-depth line, for example, the iso-depth line Ld11, on the display screen 81 based on the data obtained by reading the storage contents corresponding to the storage portion corresponding to the “minute” field. When
This constitutes the seventh configuration described above.
[0199]
Second, in the seventh configuration,
The above-mentioned predetermined water depth value, for example, the water depth value 20m, is stored in the map data stored in advance, for example, in the map data memory 75 or the map data stored in the external storage portion, that is, the map equal depth A line, that is, a water depth value of the ready-made / isodepth lines Ld1 and Ld5, for example, a water depth value different from the water depth value of 10 m and 50 m, and creating the above-mentioned isodepth line, for example, the creation / depth line Ld11, Combined display means for combining and displaying the above-mentioned iso-depth lines, for example, the creation / depth line Ld11 and the above-mentioned map iso-depth lines, for example, ready-made / depth lines Ld1 and Ld5
The above-described eighth configuration is added.
[0200]
Thirdly, in the seventh configuration and the eighth configuration described above,
The predetermined water depth value is set to a plurality of predetermined water depth values, for example, water depths of 20 m, 30 m, and 40 m, and “position data” of the first storage portion, for example, isodepth line data memory 79 is set. A plurality of predetermined water depth values, for example, the storage portion corresponding to the column and the second storage portion, for example, the storage portion corresponding to the “line segment” column of the iso-depth line data memory 79, By providing storage portions corresponding to water depths of 20 m, 30 m, and 40 m, a plurality of the above-mentioned iso-depth lines, for example, the creation / iso-depth lines Ld11 to Ld13 are displayed on the display screen 81. 9 is configured.
[0201]
Fourthly, in the seventh configuration to the ninth configuration described above,
Specify the above-mentioned points, for example, graphics for displaying the respective predetermined water depth positions LP1 to LP3, for example, ◯ -shaped graphics, or the above-described line segments, for example, connecting line segments LL1-LL3 The tenth configuration described above, in which the storage of data, for example, “Yes” data is erased, or the line segment creation data, for example, the storage of “Yes” data is added. It is what constitutes.
[0202]
Furthermore, fifthly,
In the seventh to tenth configurations described above,
The position measuring portion 10 is constituted by a satellite radio navigation device or a corrected radio navigation device, and the eleventh configuration is constituted by the water depth measuring portion 30 being constituted by a fish finder.
[0203]
Specifically, the control processing flow program of FIG. 9 is stored in advance in the processing memory 72 of FIG. 6 so that the display according to each of the above configurations can be performed.
[0204]
This control processing flow is configured as a sub routine of the main control processing routine for performing the entire control processing in the navigation information processing portion 70 of FIG. 6, and is executed from the main control processing routine, for example, every second. It is configured to shift to a control processing flow.
[0205]
[Explanation of control processing flow]
Hereinafter, the control processing flow of FIG. 9 will be described. Here, it is assumed that a predetermined water depth value is set to 20 m, 30 m, and 40 m, and control processing for creating and displaying the creation / isodepth lines Ld11, Ld12, and Ld13 is performed.
[0206]
In step SP1, it is determined whether or not the depth of the created / isodepth line, that is, a predetermined water depth value has been set. If it has been set, the process proceeds to step SP3, and if not, the process proceeds to the next step SP2.
[0207]
Here, for example, in setting the water depth value, after setting the water depth value 20 m first, other water depth values 30 m and 40 m may be set, so it is determined whether or not there is a setting input each time the setting is made. To do.
[0208]
Further, the setting input is performed by operating an operation portion for creating an iso-depth line provided in the setting operation portion 60, for example, an “iso-depth line” key 69Y indicated by a dotted line in the setting operation portion (60 + 32) in FIG. Then, a menu screen for setting the conditions of creation / iso-depth lines is displayed, and a signal for setting a required water depth value, for example, a water depth value of 20 m, 30 m, or 40 m, is input, and this water depth value setting is input. The above determination is made based on whether or not the signal is stored in the work memory 73.
[0209]
In step SP2, the above-mentioned water depth value setting signal is fetched, and, for example, as shown in FIG. 8, the predetermined water depth value 20m, 30m, 40m is memorized.
[0210]
For each stored depth value 20m, 30m, and 40m, the position data of the ship position 10a when the depth value is obtained is the data of the predetermined depth positions LP1, LP2, and LP3, for example, latitude and longitude values ( A storage portion corresponding to the “position data” column for storing in the form of a table as A1) to (A6) · latitude and longitude values (B1) to (B7).
[0211]
Further, corresponding to the data of the predetermined water depth positions LP1, LP2, and LP3 in the “position data” column of the iso-depth line data memory 79, each connection corresponding to each line segment of the created / iso-depth lines Ld11, Ld12, and Ld13 A line segment data for creating the lines LL1, LL2, and LL3, for example, a storage portion corresponding to a “line segment” column for storing “present” in a table form is created.
[0212]
In step SP3, it is determined whether or not the data of the current water depth 30a has reached any one of the set predetermined water depth values 20m, 30m, and 40m. When one of the water depth values is reached, the process proceeds to the next step SP4, and when not, the process returns to a predetermined step position of the main control processing routine.
[0213]
Whether the data of the water depth 30a matches the data of the predetermined water depth value compared with the predetermined water depth values 20m, 30m, and 40m stored in the set water depth data memory 77Y. Determine whether or not.
[0214]
◆ In step SP4, the data of the ship position 10a obtained at the time when it coincides with any of the data of the predetermined water depth value, for example, the time when it coincides with the water depth value 20m, that is, the latitude / longitude value, for example, the latitude / longitude value ( With the data of A6) as the data of the predetermined water depth position value, the corresponding water depth value column of the set water depth data memory 77Y, for example, the “position data” column of the water depth value 20m in the set water depth data memory 77Y of FIG. After the data is stored in the storage portion corresponding to, the process proceeds to next step SP5.
[0215]
Here, for convenience of explanation, the data of the latitude and longitude values (A1) to (A5) are data of the predetermined water depth position value obtained by this step SP4 until the previous time.
[0216]
In step SP5, a predetermined water depth position value, for example, a latitude / longitude value (A6) stored in the storage portion corresponding to the “Position Data” column of the water depth value corresponding to the set water depth data memory 77Y, for example, the water depth value 20m. ) Is compared with the position value data already stored in the storage portion corresponding to the “position data” field of the iso-depth data memory 79, and in a predetermined order, for example, the order of the longitude value is small. Thus, for example, as shown in the “position data” column of 20 m in the equi-depth line data memory 79 of FIG. 8, after the storage order is changed and stored again, the process proceeds to the next step SP6.
[0217]
In step SP6, line segment data, for example, “present” is stored in the “line segment” field of the iso-depth line data memory 79 to create a line segment of iso-depth lines, for example, a connection line LL1 is created. It is determined whether or not. When creating a line segment, the process proceeds to the next step SP7, and when not, the process proceeds to step SP8.
[0218]
The determination here is simply when the predetermined water depth position value is stored in the storage portion corresponding to the previous order column in the “position data” column of the iso-depth line data memory 79, for example, line segment data, for example, “Yes” is memorized.
[0219]
That is, for example, if the latitude / longitude data (A6) is stored in the “position data” field of the iso-depth data memory 79 in FIG. Since latitude and longitude values (A4) are stored, it is determined that line segment data is stored.
[0220]
In step SP7, after the line segment data is stored, the process proceeds to the next step SP8. As in the example in step SP6 above, the latitude / longitude value (A6) is stored when the latitude / longitude value (A4) is stored in the pre-order column of the data of the latitude / longitude value (A6). ) Is stored in the storage portion corresponding to the “line segment” column corresponding to the data of).
[0221]
In step SP8, it is determined whether or not the creation / isodepth lines Ld11, Ld12, and Ld13 are to be displayed. If it is displayed, the process proceeds to the next step SP9, and if not, the process returns to a predetermined step in the main control processing routine.
[0222]
In this determination, for example, the menu screen for setting the conditions of creation / iso-depth lines is displayed by operating the “iso-depth line” key 69Y indicated by the dotted line in the setting operation portion (60 + 32) in FIG. Thus, the determination is made based on whether or not the signal for which “display” has been selected, that is, the creation / isodepth display signal is stored in the work memory 73.
[0223]
In step SP9, data necessary for creating / displaying the iso-depth line, for example, data stored in the “position data” column and the “line segment” column of the iso-depth line data memory 79 in FIG. By giving to the display processing portion 80, the portion stored in the iso-depth line data memory 79 of the created / iso-depth lines Ld11, Ld12, and Ld13 is displayed on the display screen 81, and then the next step SP10 is performed. Transition.
[0224]
In step SP10, it is determined whether or not to change any of the required line segments of the creation / isodepth lines Ld11, Ld12, and Ld13, for example, the connection line segment LL1. When it changes, it transfers to following step SP11, and when that is not right, it transfers to step SP12.
[0225]
In this determination, for example, the menu screen for setting the conditions of creation / iso-depth lines is displayed by operating the “iso-depth line” key 69Y indicated by the dotted line in the setting operation portion (60 + 32) in FIG. Thus, a determination is made based on whether or not a signal for which “change” has been selected, that is, a creation / isodepth line change signal is stored in the work memory 73.
[0226]
In step SP11, the creation / isodepth lines Ld11, Ld12, and Ld13 displayed on the display screen 81, that is, any of the connecting line segments LL1, LL2, and LL3 are deleted, or A new line segment connecting any point of the predetermined water depth positions LP1 to LP3, that is, a new connecting line segment is added, and the alignment of any of the created / iso-depth lines Ld11, Ld12, and Ld13 is changed. Perform a manual change operation.
[0227]
Here, the “erase operation” in the manual change operation is performed by operating the designated point CP by the cursor CLX / CLY in FIG. 7 by operating the “cursor” key 62H / arbitrary direction moving operation portion 68 in FIG. Is specified in accordance with the figure displaying the predetermined water depth positions LP1 to LP3 of the place to be deleted, for example, the figure of the circle shape, or the positions of the connecting line segments LL1 to LL3.
[0228]
In this state, by operating the “Erase” key 64F in FIG. 21, storage of line segment creation data, for example, “present” data stored in the “line segment” column of the iso-depth line data memory 79 is performed. Deletes the line.
[0229]
In addition, the “addition operation” is performed in the same manner as the “setting” in FIG. 21 in a state in which a graphic that displays the points of the predetermined water depth positions LP1 to LP3, for example, a circle shape, is specified. ”Key 62 </ b> F is operated to add storage of the“ present ”data and add a new line segment.
[0230]
Specifically, as shown in [Line Segment Change Configuration] in FIG. 7, the connecting line segment LL1A of the created / iso-depth line Ld11 is deleted, and the connecting line segment LL1B indicated by the dotted line is added as a new line segment. By doing so, the above-mentioned “erasing operation” and “adding operation” can be performed in order to make the alignment of the creation / isodepth line Ld11 coincide with the actual alignment.
[0231]
In step SP12, it is determined whether or not the creation / isodepth lines Ld11, Ld12, and Ld13 are to be erased. When erasing, the process proceeds to the next step SP13, and when not, the process returns to a predetermined step of the main control processing routine.
[0232]
The discrimination here is, for example, by operating the “iso-depth line” key 69Y in FIG. 21 to display a menu screen for setting conditions of creation / iso-depth lines, ie, a signal for which “erase” has been selected, The determination is made based on whether or not the creation / iso-depth line erasure signal is stored in the work memory 73.
In step SP13, the created / iso-depth lines Ld11, Ld12, and Ld13 are erased, and then the process returns to a predetermined step position of the main control processing routine.
[0233]
  That is, according to the configuration of the fifth embodiment, on the menu screen displayed by operating the “iso-depth line” key 69Y, water depth values 20m and 30m such as the iso-depth lines Ld11, Ld12, and Ld13 that are newly created are desired. While 40 m is set and the ship is navigating through various routes, the position data of the predetermined depth positions LP1, LP2, LP3 and the connecting line segment LL1,. The feature is that the line creation data of LL2 and LL3 are accumulated and stored, and the contour lines Ld11, Ld12, Ld13, etc. can be displayed.
  This eliminates the need for special overwork to create new contour lines..
[0234]
[Sixth embodiment]
The sixth embodiment will be described below with reference to FIGS. 6 and 10 to 12. The difference between the configuration of the sixth embodiment and the configuration of the fifth embodiment is as follows.
[0235]
First, for example, as shown in FIG. 11, the position value of the point newly stored in the “position data” column of the predetermined water depth 20 m of the equidepth line data memory 79, for example, the latitude / longitude value (A8). On the other hand, the position value of an adjacent point having a predetermined water depth of 20 m, that is, the distance value between the position values stored in the column of the first order and the next order, for example, the latitude / longitude value (A8) and the latitude on the first order side. The distance value between the longitude value (A1) and the distance value between the latitude longitude value (A8) and the next forward latitude longitude value (A6) Although this is a distance value, these distance values are determined separately, and “Yes” is stored only when the distance value is not more than a predetermined distance value ds (not shown), for example, 0.5 km or less. This is a location that has been changed to provide the above condition.
[0236]
That is, in the case of FIG. 11, since the distance value between the latitude / longitude value (A8) and the latitude / longitude value (A1) on the forward side exceeds the predetermined distance value ds, the latitude / longitude value (A8) The storage portion corresponding to the “line segment” field corresponding to is “blank”, that is, the storage state without the line segment is set, but the latitude / longitude value (A8) and the latitude / longitude value (A6) on the next order side are Since the distance value between them is equal to or less than the predetermined distance value ds, the storage portion corresponding to the “line segment” column corresponding to the latitude / longitude value (A6) is set to “present”, that is, a storage state with a line segment. Needless to say, the same processing is applied to the storage portions corresponding to the other predetermined water depth fields of 30 m and 40 m.
[0237]
Secondly, as shown in FIG. 10, only the portion of the connecting line segment LLX indicated by the solid line is displayed as shown in FIG. The portion indicated by is a portion configured to be changed so as not to be displayed.
[0238]
Thirdly, if necessary, as shown in FIG. 10, a figure that displays a point connected by a line segment, for example, a predetermined water depth position LPX connected by a connection line segment LLX, may be a small figure, for example, Configured to display with small black ● shapes.
[0239]
Furthermore, a figure that displays a point that is not connected by a line segment, for example, a predetermined water depth position LPX that is not connected by a connection line segment LLX, is displayed as a large figure, for example, a large circle figure. The point is configured so that it can be observed that a point having a predetermined water depth exists at a point not connected by the line segment.
[0240]
Fourth, if necessary, a figure displaying a point connected by a line segment, for example, a position of a predetermined water depth position LPX connected by a connection line segment LLX, for example, a small black ● graphic is displayed at a constant luminance. Configure to display in.
[0241]
Furthermore, a figure that displays a point that is not connected by a line segment, for example, a location at a predetermined water depth position LPX that is not connected by a connection line segment LLX, for example, a figure with a large circle is brighter than normal brightness, for example, It is configured so that it is displayed with a brightness twice as high as that of normal or blinked so that a point of a predetermined water depth value can be observed at a point not connected by the above line segment. This is the place that was constructed.
[0242]
That is, the configuration of the sixth embodiment is generally as follows.
Based on the position measurement data of the ship position 10a obtained by the position measurement part 10 and the water depth measurement data 30a of the water depth value corresponding to the ship position 10a obtained by the water depth measurement part 30, an iso-depth line Ld11 is obtained. In the navigation device 100 that can display an image of navigation-related information including it on the display screen 81,
[0243]
A first memory for setting a predetermined water depth value for creating the isodepth line Ld11, for example, a water depth of 20 m, and storing a predetermined water depth value, for example, a predetermined water depth position value corresponding to the water depth of 20 m. For example, a storage portion corresponding to the “position data” field of the iso-depth line data memory 79 is provided,
[0244]
The position value 10a of the position measurement data when the water depth measurement data 30a reaches the predetermined water depth value, for example, 20 m, is converted into the predetermined water depth position values, for example, latitude and longitude values (A1) to (A6). ) As a predetermined water depth position value storage means for storing in the first storage part, for example, a storage part corresponding to the “position data” field of the iso-depth data memory 79;
[0245]
The predetermined water depth position values, for example, latitude / longitude values (A1) to (A6) stored in the first storage portion, for example, the storage portion corresponding to the “position data” column of the iso-depth line data memory 79. Line creation data for creating a line segment that connects only points having a predetermined distance value or less, for example, 0.5 km or less, for example, a connected line segment LLX, for example, “Yes” Line segment storage means for storing data in a second storage portion, for example, a storage portion corresponding to the “line segment” column of the iso-depth line data memory 79;
[0246]
The first storage portion, for example, the storage portion corresponding to the “position data” column of the iso-depth line data memory 79, and the second storage portion, for example, the “line” of the iso-depth line data memory 79. The iso-depth line display means for displaying the iso-depth line, for example, the iso-depth line Ld11, on the display screen 81 based on the data obtained by reading the storage contents corresponding to the storage portion corresponding to the “minute” field. When
This constitutes the twelfth configuration provided with the above.
[0247]
Second, in the above twelfth configuration,
A graphic that displays a point connected by the above line segment, for example, a predetermined water depth position LPX connected by the connection line segment LLX, is displayed as a small graphic, for example, a small black ● graphic, and the above line segment The thirteenth configuration described above, in which a figure that displays a point that is not connected by a point, for example, a place of the predetermined water depth position LPX that is not connected by the connecting line segment LLX, is displayed as a large figure, for example, a large circle figure It is what constitutes.
[0248]
Third, in the twelfth and thirteenth configurations described above,
While displaying a point connected by the above-mentioned line segment, for example, a figure of a predetermined water depth position LPX connected by the connecting line segment LLX, for example, a small black ● graphic with a steady luminance, the above line A figure that displays a point that is not connected by a minute, for example, a portion of a predetermined water depth position LPX that is not connected by a connecting line segment LLX, for example, a figure with a large circle is brighter than normal brightness, for example, steady 2 The fourteenth configuration described above is configured to display at double luminance or to blink.
[0249]
Further, fourthly, in the twelfth configuration to the fourteenth configuration described above,
The above-mentioned predetermined water depth value, for example, the water depth value 20m, is stored in the map data stored in advance, for example, in the map data memory 75 or the map data stored in the external storage portion, that is, the map equal depth A line, that is, a water depth value of the ready-made / isodepth lines Ld1 and Ld5, for example, a water depth value different from the water depth value of 10 m and 50 m, and creating the above-mentioned isodepth line, for example, the creation / depth line Ld11, Combined display means for combining and displaying the above-mentioned iso-depth lines, for example, the creation / depth line Ld11 and the above-mentioned map iso-depth lines, for example, ready-made / depth lines Ld1 and Ld5
This constitutes the fifteenth configuration to which is added.
[0250]
Fifth, in the twelfth to fifteenth configurations described above,
The predetermined water depth value is set to a plurality of predetermined water depth values, for example, water depths of 20 m, 30 m, and 40 m, and “position data” of the first storage portion, for example, isodepth line data memory 79 is set. A plurality of predetermined water depth values, for example, the storage portion corresponding to the column and the second storage portion, for example, the storage portion corresponding to the “line segment” column of the iso-depth line data memory 79, By providing storage portions corresponding to water depths of 20 m, 30 m, and 40 m, a plurality of the above-mentioned iso-depth lines, for example, the creation / iso-depth lines Ld11 to Ld13 are displayed on the display screen 81. This constitutes 16 configurations.
[0251]
Furthermore, sixthly, in the twelfth to sixteenth configurations described above,
Specify the above-mentioned points, for example, graphics for displaying the respective predetermined water depth positions LP1 to LP3, for example, ◯ -shaped graphics, or the above-described line segments, for example, connecting line segments LL1-LL3 The seventeenth configuration described above, wherein the storage of data, for example, “Yes” data is erased or the line segment creation data, for example, the storage of “Yes” data is added. It is what constitutes.
[0252]
Seventhly, in the twelfth to seventeenth configurations described above,
The position measurement portion 10 is configured by a satellite radio navigation device or a correction radio navigation device, and the water depth measurement portion 30 is configured by the fish detection device.
[0253]
Specifically, the control processing flow program of FIG. 12 is stored in advance in the processing memory 72 of FIG. 6 so that the display according to each of the above configurations can be performed.
[0254]
This control processing flow is configured as a sub routine similar to the control processing flow of FIG. 9, and is configured to shift to this control processing flow from the main control processing routine, for example, every second. It is.
[0255]
[Explanation of control processing flow]
Hereinafter, the control processing flow of FIG. 12 will be described. Here, it is assumed that a predetermined water depth value is set to 20 m, 30 m, and 40 m, and control processing for creating and displaying the creation / isodepth lines Ld11, Ld12, and Ld13 is performed.
[0256]
In steps SP1 to SP5, the same control process as in steps SP1 to SP5 in the control process flow of FIG. 9 is performed, and the process proceeds to the next step SP6.
[0257]
◆ In step SP6, between the point of the position value of the predetermined water depth newly taken in the “position data” column of the iso-depth line data memory 79 and the point of the position value of the same predetermined water depth adjacent to the point Whether the distance value is equal to or less than a predetermined distance value ds (not shown), for example, 0.5 km or less. When the distance is equal to or less than the predetermined distance value ds, the process proceeds to the next step SP7, and when not, the process proceeds to step SP8.
[0258]
In this determination, first, the data of the predetermined distance value ds is stored in advance in the “predetermined distance value” field of the iso-depth line data memory 79, for example, in the “position data” field of the predetermined water depth 20 m. In addition, the position value of the newly taken point, for example, the position value of the predetermined water depth 20 m adjacent to the latitude / longitude value (A8), for example, the distance value dm1 (not shown) with respect to the latitude / longitude value (A1), and the latitude A distance value dm2 (not shown) with respect to the longitude value (A6), that is, each distance value dm1 · dm2 between adjacent positions of the same predetermined water depth is calculated and obtained.
[0259]
Next, the determination is made based on whether one of the distance values dm1 and dm2 is equal to or less than a predetermined distance value ds. Here, it is assumed that only the distance value dm2 between the point of the latitude / longitude value (A8) and the point of the latitude / longitude value (A6) is equal to or less than the predetermined distance value ds.
[0260]
In step SP7, line segment creation data for creating a line segment between points that are equal to or less than the predetermined distance value ds is stored in a predetermined storage portion, and then the process proceeds to the next step SP8.
[0261]
The storage processing here is, for example, a line segment creation data for displaying a line segment connecting the point of the latitude / longitude value (A8) and the point of the latitude / longitude value (A6), that is, the connection line segment LLX. Then, the control processing for storing “present” data in the storage portion corresponding to the “line segment” column corresponding to the latitude / longitude value (A6) in the “position data” column of the equi-depth line data memory 79 is performed.
[0262]
In steps SP8 to SP13, the same control processing as in steps SP8 to SP13 in the control processing flow of FIG. 9 is performed, and the process proceeds to a predetermined step portion of the main control processing routine.
[0263]
Note that the “line segment change” at step SP11 in the sixth embodiment is specifically, for example, as shown in [Line segment change configuration] in FIG. Changed to display a new connecting line segment LLY, as indicated by the solid line, as determined by the actual situation where the predetermined distance value ds in Ld12 is exceeded, that is, the part exceeding the predetermined distance indicated by the dotted line It is configured to process.
[0264]
  In other words, according to the configuration of the sixth embodiment, as in the case of the fifth embodiment, the isodepth line to be newly created on the menu screen displayed by operating the “isodepth line” key 69Y. The water depth values 20m, 30m, 40m, etc., such as Ld11, Ld12, Ld13, etc. are set, and the own depth of the predetermined depth position LPX is stored in the isodepth data memory 79 while the ship is navigating through various routes. The feature is that the position data and the line creation data of the connecting line segment LLX are accumulated and stored, and the iso-depth lines Ld11, Ld12, Ld13, etc. can be displayed.
  This eliminates the need for special overwork work to create a new contour line.1The problem has been solved.
[0265]
[Modification]
The present invention includes the following modifications.
(1) Storage by a memory portion other than the processing memory 72 in the configuration of FIGS. 1, 4 and 6 is stored in a memory area divided in correspondence with these memory portions in one memory. Modify and configure.
[0266]
(2) In the configurations of the fifth and sixth embodiments according to the configuration of FIG. 6, the heading measurement portion 15 is provided.
(3) In the configuration of the fifth and sixth embodiments according to the configuration of FIG. 6, the heading measurement portion 15 is removed.
[0267]
(4) The setting operation portion 60 in the configurations of the third to sixth embodiments is arranged on the lower side of the display screen 81.
(5) In the configuration of (4) above, the setting operation part 60 is changed to the setting operation part 60 as shown in FIG. 17, the operation part necessary for the operation as the fish finder in the setting operation part (60 + 32) of FIG. An "iso-depth line" key 69Y is added and configured.
[0268]
(6) Instead of the data of the water depth 30a in the configuration of FIGS. 4 and 6, the water depth at which the transducer 35 of the water depth measurement portion 30 is provided, that is, the depth value from the water surface to the transducer 35 is The data added to the data of the water depth 30a is used as the data of the water depth value.
[0269]
【The invention's effect】
  According to the present invention, as described above, by setting the water depth value of the iso-depth line to be newly created by a predetermined operation, while the ship is navigating through various routes, The data for creating the iso-depth line is accumulated and stored, so that the desired iso-depth line can be displayed, and there is a feature that there is no need for an overwork work for creating the iso-depth line, etc. There is an effect.
[Brief description of the drawings]
In the drawings, FIGS. 1 to 12 show an embodiment of the present invention, and FIGS. 13 to 21 show the prior art. The contents of each figure are as follows.
FIG. 1 is an overall block configuration diagram.
[Fig. 2] Main part display configuration diagram
FIG. 3 is a configuration diagram of the main part control processing.
FIG. 4 is an overall block diagram.
FIG. 5 is a configuration diagram of main part control processing.
FIG. 6 is an overall block diagram.
FIG. 7 is a configuration diagram of the main part display.
FIG. 8 is a configuration diagram of the main part storage.
FIG. 9 is a configuration diagram of main part control processing.
FIG. 10 is a configuration diagram of the main part display.
FIG. 11 is a configuration diagram of main part storage.
FIG. 12 is a configuration diagram of main part control processing.
FIG. 13 is an overall block configuration diagram.
FIG. 14 is a perspective view of the entire specific configuration.
FIG. 15 is a front view of a specific configuration of a main part.
FIG. 16 is a main part display configuration diagram.
FIG. 17 is a front view of a specific configuration of a main part.
FIG. 18 is an overall block diagram.
FIG. 19 is a perspective view of the entire specific configuration.
FIG. 20 is a perspective view of the entire specific configuration.
FIG. 21 is a front view of a specific configuration of the main part.
[Explanation of symbols]
10 Position measurement part
20 Navigation-related information display part
10a Own ship position
10b Own ship speed
10c Current direction
15 Heading measurement part
15a Bow direction
30 Depth measurement part
30a water depth
31 Display screen
31d Current depth
32 Setting operation part
35 Transceiver
60 Setting operation part
60a Setting signal
61 Screen selection operation part
62 Destination setting operation part
62A “Menu” key
62B “Destination” key
62C "Running" key
62D “Cancel” key
62F “OK” key
62G “Navigation switching” key
62H “Cursor” key
62J "Return" key
62X Destination setting operation part
63 Wake setting operation part
63X Track setting operation part
63A “Wake color” switch
63B Wake "Memory" key
63C Wake "call" key
63D Track “ON / OFF” key
63E Track “Erase” key
64 Mark setting operation part
64A “mark color” switch
64B-64E “Mark” key
64F “Delete Mark” key
65 Numerical value setting operation part
66 Screen setting operation part
66 Screen setting operation part
66A-66C “Scale” key
66D "Enlarge" key
66C “Center” key
66F “Reduce” key
66X Image setting operation part
67 Power supply setting operation part
67B “Power” key
67C “Luminance” key
68 Arbitrary direction movement operation part
69 Setting operation part such as cursor
69X "front water bottom" key
69Y “Depth line” key
70 Navigation information processing part
70A CPU
71A I / O port
71B I / O port
72 Processing memory
73 Working memory
74 Track data memory
75 Map memory
76 Clock circuit
77 Water depth data memory
78 Memory for front water bottom data
80 Display processing part
80A CPU
81 Display screen
82 Image Element Memory
82X Navigation-related display image
82Y Water bottom cross-sectional image
83 Processing memory
84 Display screen memory
90 External storage part
91 I / O port
100 navigation equipment
B1 Distance width
B1a Distance width
CP designated point
CLX / CLY cursor line
CR1 Own ship track
CR2 past wake
EV1 and EV2 points to consider
JP1 destination
Ld iso-depth line
L1 to L5 route
Ld1-Ld5 iso-depth line
Ld11-13 creation / iso-depth line
LX latitude line
LY Longitude line
M1 coastline
P1 to P4 direction change point
P21-P26 Intersection position
RT1 planned track
θ1 Course deviation

Claims (7)

Based on the position measurement data of the ship position obtained by the position measurement part and the water depth measurement data of the depth value corresponding to the ship position obtained by the water depth measurement part, an image of navigation-related information including iso-depth lines is obtained. A navigation device that can be displayed on a display screen,
In addition to setting a predetermined water depth value for creating the iso-depth line, a first storage portion for storing a predetermined water depth position value corresponding to the predetermined water depth value is provided, and the water depth measurement data is the predetermined water depth. Predetermined water depth position value storage means for storing the position value of the position measurement data obtained at the time when the value is reached in the first storage portion as the predetermined water depth position value;
A line segment that stores line segment creation data for creating a line segment that connects only points having a predetermined water depth position value stored in the first storage portion that are equal to or less than a predetermined distance value in the second storage portion. Storage means;
A contour line display means for displaying the contour line on the display screen based on each data obtained by reading the storage contents of the first storage portion and the second storage portion. A navigation device characterized by.   2. The navigation system according to claim 1, wherein a graphic for displaying the points connected by the line segments is displayed as a small graphic, and a graphic for displaying the points not connected by the line segments is displayed as a large graphic. apparatus.   The graphic displaying the points connected by the line segment is displayed with a constant luminance, and the graphic displaying the points not connected by the line segment is displayed with a brightness brighter than the normal luminance or blinking. The navigation apparatus according to claim 1, wherein the navigation apparatus is characterized. The predetermined water depth value is set to a water depth value different from the water depth value of the iso-depth line (hereinafter referred to as map iso-depth line) included in the map data stored in advance, and the iso-depth line is created. The navigation apparatus according to any one of claims 1 to 3, further comprising a merge display unit that merges and displays a depth line and the map depth line.   By setting the predetermined water depth value as a plurality of predetermined water depth values and providing a storage portion corresponding to the plurality of predetermined water depth values in the first storage portion and the second storage portion. The navigation device according to claim 1, wherein a plurality of the equi-depth lines are displayed on the display screen. A line segment deletion adding means for specifying a figure or the line segment for displaying the point and erasing the storage of the line segment creation data or adding the memory of the line segment creation data is added. The navigation device according to any one of claims 1 to 5.   The navigation according to any one of claims 1 to 6, wherein the position measurement part is constituted by a satellite radio navigation apparatus or a correction satellite radio navigation apparatus, and the water depth measurement part is constituted by a fish finder. apparatus.

Images