FISHFINDER

• US 20160274236A1
• Filed: 03/14/2016
• Published: 09/22/2016
• Est. Priority Date: 03/19/2015
• Status: Active Grant

• Current Assignee: Honda Electronics Co., Ltd.
• Original Assignee: Honda Electronics Co., Ltd.
• Inventors: Iida, Shuji, Suzuki, Hiroshi
• Granted Patent: US 11,199,626 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01S 15/89 for mapping or imaging
• CPC Class Codes: G01S 15/96 for locating fish
• CPC Class Codes: G01S 7/6218 providing two-dimensional coordinated display of distance and direction
• CPC Class Codes: G01S 7/6272 producing cursor lines and indicia by electronic means

Abstract

A fishfinder has: a transducer capable of transmitting an ultrasonic wave underwater and receiving a reflected wave of the ultrasonic wave; a display part that time-sequentially arranges a detection image based on a reception signal, caused by receiving the reflected wave with the transducer; a first depth calculation part that calculates a first depth as a depth of the bottom; a recognition part that performs recognition on an object as a fish school; a second depth calculation part that calculates a second depth as a depth of a position of the object; a distance calculation part that calculates a distance from the bottom to the position of the object; and a distance display part that displays the distance calculated with the distance calculation part, in correspondence with the position of the object in the detection image displayed on the display part, on the display part.

Claims

1. A fishfinder comprising:

a transducer capable of transmitting an ultrasonic wave underwater, and receiving a reflected wave of the ultrasonic wave;

a display part that time-sequentially is configured to arrange a detection image, based on a reception signal caused by receiving the reflected wave of the ultrasonic wave transmitted from the transducer, with the transducer;

a first depth calculation part that is configured to calculate a first depth as a depth of a bottom based on the reception signal;

a recognition part that is configured to perform recognition on an object as a fish school based on the reception signal;

a second depth calculation part that is configured to calculate a second depth as a depth of a position of the object recognized as the fish school with the recognition part;

a distance calculation part that is configured to calculate a distance from the bottom to the position of the object recognized as the fish school with the recognition part, based on the first depth calculated with the first depth calculation part and the second depth calculated with the second depth calculation part; and

a distance display part that is configured to display the distance calculated with the distance calculation part, in correspondence with the position of the object recognized as the fish school with the recognition part, in the detection image displayed on the display part, on the display part.

2. The fishfinder according to claim 1, wherein the distance display part is configured to display a first symbol or a first picture to indicate that the distance displayed on the display part is a distance from the bottom, in correspondence with the distance, on the display part.

3. The fishfinder according to claim 1, further comprising a depth display part that is configured to display the second depth calculated with the second depth calculation part, in correspondence with the position of the object recognized as the fish school with the recognition part, in the detection image displayed on the display part, on the display part.

4. The fishfinder according to claim 2, further comprising a depth display part that is configured to display the second depth calculated with the second depth calculation part, in correspondence with the position of the object recognized as the fish school with the recognition part, in the detection image displayed on the display part, on the display part.

5. The fishfinder according to claim 3, wherein the depth display part is configured to display a second symbol or a second picture to indicate that the second depth displayed on the display part is a depth from a surface, in correspondence with the second depth, on the display part.

6. The fishfinder according to claim 4, wherein the depth display part is configured to display a second symbol or a second picture to indicate that the second depth displayed on the display part is a depth from a surface, in correspondence with the second depth, on the display part.

7. The fishfinder according to claim 1, further comprising a fish-school position image display part that is configured to display a third symbol or a third picture to indicate the fish school, in the position of the object recognized as the fish school with the recognition part, with respect to the detection image displayed on the display part,

wherein the distance display part is configured to display the distance calculated with the distance calculation part, in correspondence with the third symbol or the third picture displayed on the display part with the fish-school position image display part, on the display part.

8. The fishfinder according to claim 2, further comprising a fish-school position image display part that is configured to display a third symbol or a third picture to indicate the fish school, in the position of the object recognized as the fish school with the recognition part, with respect to the detection image displayed on the display part,

wherein the distance display part is configured to display the distance calculated with the distance calculation part, in correspondence with the third symbol or the third picture displayed on the display part with the fish-school position image display part, on the display part.

9. The fishfinder according to claim 3, further comprising a fish-school position image display part that is configured to display a third symbol or a third picture to indicate the fish school, in the position of the object recognized as the fish school with the recognition part, with respect to the detection image displayed on the display part,

wherein the distance display part is configured to display the distance calculated with the distance calculation part, in correspondence with the third symbol or the third picture displayed on the display part with the fish-school position image display part, on the display part.

10. The fishfinder according to claim 4, further comprising a fish-school position image display part that is configured to display a third symbol or a third picture to indicate the fish school, in the position of the object recognized as the fish school with the recognition part, with respect to the detection image displayed on the display part,

wherein the distance display part is configured to display the distance calculated with the distance calculation part, in correspondence with the third symbol or the third picture displayed on the display part with the fish-school position image display part, on the display part.

11. The fishfinder according to claim 5, further comprising a fish-school position image display part that is configured to display a third symbol or a third picture to indicate the fish school, in the position of the object recognized as the fish school with the recognition part, with respect to the detection image displayed on the display part,

wherein the distance display part is configured to display the distance calculated with the distance calculation part, in correspondence with the third symbol or the third picture displayed on the display part with the fish-school position image display part, on the display part.

12. The fishfinder according to claim 6, further comprising a fish-school position image display part that is configured to display a third symbol or a third picture to indicate the fish school, in the position of the object recognized as the fish school with the recognition part, with respect to the detection image displayed on the display part,

wherein the distance display part is configured to display the distance calculated with the distance calculation part, in correspondence with the third symbol or the third picture displayed on the display part with the fish-school position image display part, on the display part.

13. The fishfinder according to claim 3, wherein the distance display part is configured to display the distance, calculated with the distance calculation part, in first color, on the display part, and

wherein the depth display part is configured to display the second depth, calculated with the second depth calculation part, in a second color different from the first color, on the display part.

14. The fishfinder according to claim 4, wherein the distance display part is configured to display the distance, calculated with the distance calculation part, in first color, on the display part, and

wherein the depth display part is configured to display the second depth, calculated with the second depth calculation part, in a second color different from the first color, on the display part.

15. The fishfinder according to claim 6, wherein the distance display part is configured to display the first symbol or the first picture, in a third color, on the display part, and

wherein the depth display part is configured to display the second symbol or the second picture, in a fourth color different from the third color, on the display part.