JP2007064868A - Method of determining ship anchoring position using fish finder, and fish finder used therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of determining a ship anchoring position using a fish finder, and the fish finder used therefor, capable of determining an anchoring position of a ship by a GPS, by inputting tidal current angle and anchor angle information. <P>SOLUTION: This method of the present invention is provided with: a process for measuring a tidal current azimuth angle and an anchor azimuth angle from the own ship 2, by anchoring the own ship 2 in a tide position of a fish shoal 3; and a process for determining the anchoring position of the own ship 2, by displaying virtually the own ship 2 to be position on a straight line with the tidal current azimuth angle from the fish shoal 3 within a display area of the fish finder 8, based on the tidal current azimuth angle and the anchor azimuth angle. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a stopping position determination method using a fish finder and a fish finder used therefor. Specifically, it relates to a ship stop position determination method using a fish detector that can determine the hull stop position so that the fishing line can flow along the tide with respect to the fish school, and a fish detector used therefor. is there.

  Conventionally, there is an invention as shown in FIG. 6, for example, as a fish finder for transmitting a fish finder signal, receiving a fish finder signal reflected from a fish school or the bottom of the water, and displaying the position of the fish school. This fish finder detects the two-dimensional absolute position of own ship 101 using a GPS antenna, detects the fish or water depth detection depth data using a fish finder transducer, and detects the two-dimensional absolute of own ship 101. A configuration in which position information data is calculated based on the position and the detected depth data, and a depth index 102 indicating the position of the school of fish or the water depth is sequentially depicted in the display area 103 based on the position of the position information data. (See Patent Document 1).

Japanese Patent Application Laid-Open No. 2004-226392 (Abstract, FIG. 1)

  In the fish finder, the GPS antenna is used to detect the two-dimensional absolute position of the ship, and the fish finder transducer is used to display the position of the fish three-dimensionally. As a result, the position of the ship becomes clear, and the ship can be accurately steered to the stop destination point.

  However, fish such as cormorants and sea breams that inhabit nearby reefs seek food while swimming while facing the tide. Therefore, as shown in FIG. It is necessary to berth the fishing line 105.

  In this case, for example, the direction of the tidal current is measured by flowing a fishing line, and the own ship 101 is anchored at a predetermined position of the tide heading to the school of fish. In order to lower the ship to the bottom of the sea and stop the ship, it is very difficult to stop the ship 101 at a predetermined position on the tide toward the fish school because of the water depth and wind direction. large.

  In addition, the tidal current changes every few hours, and even if the ship's anchoring position with respect to the school of fish does not change, the direction in which the fishing line flows changes, which makes the fish bite worse. Therefore, each time the tide changes, the position of the ship must be corrected so that the tide of the school of fish is reached. However, there is a problem that the position adjustment considering the wind direction is very difficult.

  The present invention was devised in view of the above points, and used a fish finder that inputs tidal current angle and anchor angle information to a fish finder and can determine the anchoring position of a ship by GPS. It is an object of the present invention to provide a stop position determination method and a fish finder used therefor.

  In order to achieve the above object, the stop position determination method using the fish finder according to the present invention transmits a fish hunting signal and receives the fish hunting signal reflected from the fish fleet or the bottom of the water. In a stopping position determination method using a fish finder that detects a school of fish in a display area, and a position in the display area is specified by longitude and latitude by a signal received by a GPS antenna provided in advance. , Stopping the own ship at the tidal position of the school of fish, measuring the tidal direction angle and anchor direction angle from the own ship, and within the display area of the fish detector based on the tidal direction angle and anchor direction angle And a step of determining the stop position of the ship by performing virtual display so that the ship's ship is positioned on a straight line.

  Here, the own ship is stopped at the tide position near the school of fish, and the tide direction angle and the anchor direction angle are measured, and within the display area of the display device of the fish finder based on these tide direction angle and anchor direction angle. By displaying virtually so that the ship's ship is positioned on a straight line from the school of fish, the anchor drop position is determined, and the ship can be stopped at the exact fishing point position.

  In order to achieve the above object, the fish finder according to the present invention transmits a fish hunting signal and receives the fish hunting signal reflected from the fish fleet or the bottom of the water in the display area of the display device. In the fish finder which detects the school of fish and whose position is specified in the display area by longitude and latitude by the signal received by the GPS antenna provided in advance, the ship is stopped at the tide position of the school of fish. Means for measuring the tidal direction angle and the anchor direction angle from the own ship and inputting and storing the measured tidal direction angle angle and anchor direction angle data, and based on the input tidal current direction angle and anchor direction angle data. Means are provided for virtually displaying the ship so that the tidal azimuth angle is in a straight line from the school of fish within the display area.

  Here, the ship is anchored at the tide position near the school of fish, and the tide direction angle and anchor azimuth angle are measured, and these tidal direction azimuth angle and anchor azimuth angle data are input and stored in the CPU controller of the fish finder. Based on these data, the anchoring position of the ship's anchor is determined by virtually displaying the ship so that the ship's azimuth angle is in a straight line from the school of fish within the display area. Even inexperienced people can measure the tide direction of floating fishing and other fishing methods, and can accurately flow the fishing line to the point where the fish is.

  According to the present invention, a school of fish is detected, the ship is anchored at a tide position near the school of fish, the tide angle and the anchor angle are measured, and the tide of the school of fish in the display area of the fish finder is based on these data. By virtual display at the bite position, it is possible to accurately calculate the anchor dropping position of the ship, and the ship can be stopped at an accurate fishing point position.

  Also, during the fishing time of the boat, the tide and direction of the wind will change, and the point between the fish school and the fishing line will deviate, and each time the tide changes, the angle of the tide (tidal current) will be measured from the own ship, Even if a person with little experience in boat fishing at sea has measured the tide direction of floating fishing or other fishing methods, it is accurate to the point where the fish is located Fishing line can flow.

Hereinafter, embodiments of the present invention will be described with reference to the drawings to provide an understanding of the present invention.
FIG. 1 is an explanatory diagram showing an example of a display area of a fish finder in a ship stop position determination method using a fish finder to which the present invention is applied.

  As shown here, the display area 1 has a rectangular shape, in which the own ship 2 simulating a ship and the position of the fish school 3 from the own ship 2 are displayed.

  The ship 2 detects a two-dimensional absolute position in longitude and latitude based on a signal received by a GPS antenna provided in advance. The fish school 3 transmits a fish search signal and receives the fish search signal reflected from the fish school or the bottom of the water, whereby the position of the fish school 3 is displayed.

  Therefore, the tide angle from the own ship 2 anchored at the position of the tide direction of the fish school 3 is measured. As a method for measuring the tidal current angle, as shown in FIG. 2, the azimuth angle ruler 4 attached to the ship 2 is set to 360 degrees on the north line of the azimuth magnet.

  And the tide angle is measured by letting the fishing line 5 from the own ship 2 pass through the center of the azimuth angle ruler 4 from the tide to the tide.

  Next, the anchor angle from own ship 2 is measured. This anchor angle is an angle with respect to the tidal current and the wind direction. When the own ship 2 is stopped, the anchoring position is not necessarily located on the anchor drop depending on the water depth or the wind direction, and the stop position is determined by the tidal current and the wind direction.

  Therefore, by inputting the information data of the tide angle and anchor angle to a CPU arithmetic circuit incorporated in the fish finder, the display is made so that the own ship 2 is positioned in the tide direction of the fish school 3 as shown in FIG. When the virtual display is performed in the area 1, the anchor dropping position 6 is displayed in the display area 1.

  By attaching a guide line from the own ship to the anchor dropping position 6 displayed on the monitor in this way, steering the own ship 2 and dropping the anchor, the own ship 2 stops at the same position as the virtually displayed state. This allows the fishing line to flow from the tide position of the school of fish 3.

  Further, since the wind direction and the tide change within one day, the tide angle and the anchor angle are measured at regular intervals as described above, and the anchor dropping position 6 can be easily corrected based on this data. It becomes possible.

  In addition, the grid 7 is displayed for every fixed distance (for example, a line of 5 m) with respect to the longitude and latitude in the display area 1 so that the stop position of the ship 2 can be set to the zero point of the longitude and latitude. Set.

  As a result, as shown in FIG. 4, it is possible to accurately measure the deviation from the fish school 3 when the tidal current, the wind direction change, and the flow direction of the fishing line change, and the position of the ship 2 is determined by this measured distance. It is possible to determine whether the correction should be made or whether it will not affect fishing.

Next, FIG. 5 is a block circuit explanatory diagram showing an example of a fish finder to which the present invention is applied.
The fish finder 8 shown here is provided with a display device 9, and a display area 1 as shown in FIG.

  Further, a CPU control unit 10 is provided, and the CPU control unit 10 stores chart data measured in advance. The CPU controller 10 is connected to a fish finder controller 12 to which a fish finder transducer 11 is connected and a GPS controller 14 to which a GPS antenna 13 is connected. In addition, the CPU controller 10 supplies power to the CPU controller 10 from a battery. A power supply unit 15, a key operation unit 16 for an operator to input various settings, a water temperature sensor 17, a direction sensor 18, and a buzzer 19 that generates sound at a predetermined time are connected.

  The fish finder control unit 12 transmits a fish finder signal having a predetermined wavelength from the fish finder transmitter / receiver 11 to the water based on a transmission command signal from the CPU control unit 10, and further receives a fish finder signal reflected from the school of fish or the bottom of the water. The CPU control unit 10 recognizes these detection signals and displays them in the chart data of the display basin 1 of the display device 9.

  The CPU control unit 10 includes a GPS receiving circuit, and a GPS antenna 13 is connected to the circuit. When the GPS receiving circuit shapes the signal received by the GPS antenna 13 and the CPU control unit 10 recognizes the detected signal, the ship's own ship identified by longitude and latitude on the chart of the display basin 1 of the display device 9 is displayed. Display 2D absolute position.

  Here, a tidal current angle data input unit 20 and an anchor angle input unit 21 are connected to the CPU control unit 10. For example, as shown in FIG. 2, the tidal angle data input unit 20 and the anchor angle input unit 21 align the azimuth angle ruler 4 attached to the ship 2 with 360 degrees on the north line of the azimuth magnet, and The tide angle is measured by flowing the fishing line 5 from the ship 2 through the tide angle ruler 4 while passing through the center of the azimuth angle ruler 4. Further, the data obtained by measuring the anchor angle of the own ship 2 is used as the tide angle. The data is input and stored in the CPU control unit 10 by the data input unit 20 and the anchor angle input unit 21.

  Further, a stop position correction control unit 22 is connected to the CPU control unit 10. The own ship position correction control unit 22 performs calculation processing based on the tidal current angle and anchor angle data input to the CPU control unit 10, and moves the own ship 2 in the tide direction of the fish school 3 as shown in FIG. When the display process is performed in the display area 1 so as to be positioned, the anchor dropping position 6 is displayed in the display area 1.

  The state where the ship's stop position is called by GPS control to this anchor drop position, and the ship's ship is guided to the virtual position by attaching the guide line from the ship by the progress line display unit 23, and is virtually displayed by dropping the anchor The fishing line can be made to flow from the tide position of the school of fish when the ship is anchored at the same position.

  Further, there is a case where the anchoring position of the ship is virtually deviated from the position where the ship's berthing position is virtually displayed due to the change in the wind direction or the anchor rope length. In this case, the anchor rope length is adjusted to eliminate the deviation.

  Further, since the wind direction and the tide change several times a day, the tide angle and the anchor angle are measured at fixed time intervals, and this data is controlled by the tide angle data input unit 20 and the anchor angle input unit 21 by the CPU. Input to the part 10 to correct the anchoring position of the ship.

  In addition, the grid 7 is displayed for each fixed distance (for example, a line of 5 m) with respect to the longitude and latitude in the display area 1, and 0 and 0 points of the longitude and latitude of the planned stoppage position of the ship 2 are set. Set as possible.

  This makes it possible to accurately measure the deviation between the virtual position and the stop position of the ship, and to accurately measure the deviation from the fish school 3 when the distance to the fish school and the tide change and the flow direction of the fishing line changes. can do.

  Further, it is possible to accurately measure the distance from the fish school 3 to the stop position of the own ship 2 according to the speed of the tidal current and the distance to the anchor dropping position according to the depth of the seabed.

  Although the fish school position may be deleted when fishing is finished, the fish school position does not change so much, so that it can be left as data in the CPU control unit.

  Lines such as own ship, fishing line and anchor dropping position displayed in the display area can be freely deleted.

  In the present invention configured as described above, the ship is anchored at the tide position near the school of fish, the tide angle and the anchor angle are measured, and based on these data, the tide position of the school of fish is determined in the fish detector display area. By virtual display, it is possible to easily determine the anchor dropping position of the ship.

  Therefore, even a person with little experience on a fishing boat at sea can surely flow the fishing line to the fishing point of the fish.

It is explanatory drawing which shows an example of the display area of the fish finder in the ship stop position determination method using the fish finder to which this invention is applied. It is explanatory drawing which shows the usage example of the azimuth | direction angle ruler in the ship stop position determination method using the fish finder to which this invention is applied. It is explanatory drawing which shows the virtual position display of the display area in FIG. It is explanatory drawing which shows the virtual position display of the display area by the change of tidal current. It is block circuit explanatory drawing which shows an example of the fish finder to which this invention is applied. It is explanatory drawing which shows an example of the conventional fish finder. It is explanatory drawing which shows the relationship between a school of fish and a tidal current.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display area 2 Own ship 3 Fish school 4 Azimuth angle ruler 5 Fishing line 6 Anchor drop position 7 Grid 8 Fish detector 9 Display apparatus 10 CPU controller part 11 Fish probe / receiver 12 Fish probe control part 13 GPS antenna 14 GPS control part 15 Power supply section 16 Key operation section 17 Water temperature sensor 18 Direction sensor 19 Buzzer 20 Tidal angle data input section 21 Anchor angle input section 22 Stop position correction control section 23 Progress line display section

Claims (4)

A fish finder signal is transmitted, and the fish finder signal reflected by the fish school or the bottom of the water is received to detect the fish school in the display area of the display device. In a stopping position determination method using a fish finder whose position is specified in the display area at latitude,
Stopping the ship at the tide position of the school of fish and measuring the tide direction angle and anchor direction angle from the ship;
Based on the tidal azimuth angle and anchor azimuth angle, the stop position of the own ship is determined by virtual display so that the tidal azimuth angle is in a straight line from the school of fish within the display area of the fish finder. A stopping position determination method using a fish finder characterized by comprising a step capable of performing the steps. In the display area, squares are provided at certain distances along the longitude and latitude, and the deviation between the own ship virtually displayed by the squares and the own ship steered and stopped based on the virtual display is confirmed. The stop position determination method using the fish finder according to claim 1, wherein the stop position is determined. A fish finder signal is transmitted, and the fish finder signal reflected by the fish school or the bottom of the water is received to detect the fish school in the display area of the display device. In a fish finder whose position is specified in the display area by latitude,
Means for stopping the own ship at the tide position of the school of fish, measuring the current direction angle and the anchor direction angle from the own ship, and inputting and storing the measured current direction angle angle and anchor direction angle data;
A fish finder comprising: means for virtually displaying the own tide azimuth in a straight line so that the current tide azimuth is in a straight line within the display area based on the input tide azimuth angle and anchor azimuth angle data . The fish finder according to claim 3, wherein squares are provided at regular intervals along the longitude and latitude in the display area.

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