JPH04339288A - Image display method on fish detector - Google Patents

Abstract

PURPOSE:To discriminate the size of fishes on a screen at a look by showing symbols of the sizes in accordance with the strength of reflected waves of ultrasonic waves by a diagram to show the reflected waves and classifying its symbols by the strength of the reflected waves by color. CONSTITUTION:After received data on the whole depth are taken in, the received data are divided into the reflected waves from the sea bottom 12 and the other reflected waves from fishes. Next, the data on selected fishes are made to correspond to the depth and compared with the other data of the symbols 13 of a plurality of kinds. The symbols 13 corresponding to the data on the selected fishes are made to correspond to the depth to show on a screen 10. For instance, since the symbols 13 are classified by three kinds of size shapes and seven kinds of colors in accordance with the sizes of the fishes (strength of reflected wave), the sizes of the fishes are known at a look. Large fishes are shown as they are changed from blue to red, particularly the largest fishes are the maximum type typing mermaids and mermen as a characteristic symbol 13 using a plurality of colors, they are not missed.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple fish finder for leisure use, and more particularly to an image display method in the fish finder.

0002

[Prior Art] As is well known, a fish finder receives reflected waves of ultrasonic waves emitted toward the ocean floor, and displays the received reflected waves on a screen in accordance with the depth. appears on the screen. At this time, if the reflected waves are displayed as they are, the fish will appear in the shape of a "he" character, but some simple fish finders for leisure use display fish as symbols. The symbols are designed to vary in size into three types depending on the strength of the reflected waves.

0003

[Problems to be Solved by the Invention] In such a conventional image display method in a recreational fish finder, fish are displayed as symbols, so the presence of fish can be recognized at a glance. Also,
You can tell the size of the fish from the size of the symbol. but,
Recreational fish finders have small screens of only a few inches, and are used by amateurs. Therefore, it is not easy to identify the size of the symbol on the screen at a glance, and in reality, the function of determining the size of the fish is hardly utilized.

The present invention was devised in view of the above circumstances, and it is an object of the present invention to provide an image display method in a fish finder that allows the size of fish to be seen at a glance on the screen.

[0005]

[Means for Solving the Problems] An image display method in a fish finder according to the present invention receives reflected waves of ultrasonic waves emitted toward the seabed, and displays the received reflected waves in correspondence with the depth. In this image display method for a fish finder, the reflected waves are displayed graphically into symbols whose size corresponds to the intensity of the reflected waves, and the symbols are color-coded according to the intensity of the reflected waves. .

[0006] At this time, it is desirable to make the symbol with the highest intensity a different shape from other symbols and to display the symbol in a plurality of colors.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram of an image displayed using the method of the present invention, FIG. 2 is an explanatory diagram showing the relationship between the size of a fish and a symbol, and FIG.
4 is a block diagram showing the configuration of a fish finder for displaying images, and FIG. 4 is a flow chart showing the operation of the fish finder.

The fish finder shown here is for so-called leisure use, and is operated by an operation panel 20 provided on the right side of the screen 10. The image appearing on the right end of the screen 10 moves to the left, and displays the range from the sea surface 11 to the seabed 12. Fish are represented by seven types of symbols 13 distinguished by combinations of size and color.

That is, the largest fish is a particularly conspicuous symbol A, which is a large mermaid model and uses multiple colors. The second to fourth fish are symbols B to D, which have the same shape as fish, and are slightly smaller than symbol A. The symbols B representing the second fish are orange, the symbols C representing the third fish are yellow, and the symbols D representing the fourth fish are yellow-green. Also, 5 to 7
The th fish are symbols E to G of the same shape, which are smaller fish than the symbols B to D. The symbol E representing the 5th fish is pale blue, and the symbol F representing the 6th fish is white. Symbol G, which represents the seventh fish, is distinguished by its dark blue color.

[0010] In other words, symbols 13 (A to G) are distinguished by seven types of colors in addition to three types of shapes, and as they change from blue to red, they represent large fish. It is said to be a striking symbol that depicts a multi-colored mermaid.

Next, the structure and operation of the fish finder that displays the above image will be explained. As shown in FIG. 3, the fish finder includes a vibrator 31 that transmits ultrasonic waves toward the ocean floor and receives the reflected waves. Transmission and reception are performed by the CPU 32 through the gate array 33 and the transmission/reception circuit 34.
It is done through. 35 is a comparator for color-coding images according to the strength of received data. CPU
32 not only controls transmission and reception based on the contents stored in the ROM 36, but also sends and receives signals to and from the RAM 37, and displays images on the cathode ray tube 39 through the analog circuit 38.

[0012] To explain the image display in detail, first, as shown in S1 and S2 of FIG. Divide into. Then, S
As shown in Fig. 3, the data about the selected fish is made to correspond to the depth, and the seven kinds of stored symbols 13
Compare with the data in (A to G). Then, as shown in S4, symbols 13 corresponding to data about the selected fish are displayed in correspondence with the depth.

According to such an image display method, seven types of symbols 13 (A to G) are displayed on the screen 10 depending on the size of the fish.
will be displayed. The seven types of symbols 13 (A to G) not only have different shapes, but are also color-coded according to the size of the fish, so you can see the size of the fish at a glance.In particular, the largest fish is a model of a mermaid. Symbol A is unique in that it is large in size and uses multiple colors, so it cannot be overlooked.

[0014] In the above embodiment, the symbols representing fish are distinguished by three types of shapes and seven types of colors, but the shapes and colors can be selected as appropriate.

[0015]

[Effects of the Invention] As described above, in the case of the image display method in the fish finder according to the present invention, fish are displayed as symbols in an easy-to-understand manner, and the symbols are color-coded depending on the size of the fish, so even an amateur can understand. You can determine the size of the fish at a glance. In particular, if the largest fish is represented by a symbol with a distinctive shape, such as a mermaid, and the symbol is displayed in multiple colors, there is no risk of overlooking the largest fish, which makes it easier for recreational fish finders. The functions of the machine will be greatly enhanced, and its commercial value will be significantly increased.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of an image displayed by the method of the present invention.

FIG. 2 is an explanatory diagram showing the relationship between the size of a fish and a symbol.

FIG. 3 is a block diagram showing the configuration of a fish finder for displaying images.

FIG. 4 is a flowchart showing the operation of the fish finder.

[Explanation of symbols]

10 Screen 13 (A-G) Symbol

Claims (2)

[Claims] Claim 1: In an image display method in a fish finder that receives the reflected waves of ultrasonic waves emitted toward the seabed and displays the received reflected waves on a screen in correspondence with the depth, the intensity of the reflected waves is 1. An image display method for a fish finder, characterized in that the reflected waves are displayed graphically in symbols of corresponding sizes, and the symbols are color-coded according to the intensity of the reflected waves. 2. The image display method in a fish finder according to claim 1, wherein the symbol having the maximum intensity is shaped differently from other symbols, and the symbol is displayed in a plurality of colors.