JP2001021649A - Fish detector with fish type recognition function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To report underwater information such as fish type to an angle for making efficient fishing performable by reporting underwater information such as fish type while comparing the swimming sound data of a fish being sampled by an underwater sound-collecting microphone with swimming sound data being stored in a storage means for judging the fish type. SOLUTION: The fish school detector with fish type recognition function consists of an ultrasonic sensor 1 for specifying the position of a fish school, an underwater sound-collecting microphone 2 for receiving the swimming sound of fish group, a control part 3 for judging the swimming sound of ultrasonic signals and fishes, a storage part 4 storing swimming sound data for every fish type, and a display 5 with a screen for displaying underwater information. As a result, since the swimming sound of the fish group indicates a characteristic waveform according to the fish type, the swimming sound of each type of fish such as a red sea bream, a parrot fish, a black porgy, and a sea bass is subjected to spectrum analysis, and a swimming sound pattern for every fish type is prepared based on the analysis data. The swimming sound pattern for every fish type being prepared in advance is stored and is compared with swimming sound data that has been actually sampled to specify the fish type.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fish finder for fishing, and more particularly to a function of displaying underwater information for identifying a fish species from a swimming sound of a fish collected by an underwater sound collecting microphone and a position of the fish detected by an ultrasonic sensor. The present invention relates to a fish finder having:

[0002]

2. Description of the Related Art Conventionally, in a fish finder, an ultrasonic wave is transmitted from an ultrasonic sonar, and an ultrasonic wave which rebounds upon an object is received. Is measured and displayed on the TV screen. This method is used in all fish finder. However, in ultrasonic measurement,
It is not possible to determine whether the object reflected on the TV screen is a fish. He makes vague situation judgments, such as "Is this video a fish?" You can't easily learn the trick. In addition, no matter how much experience is gained, a complete prediction is impossible.

[0003]

In order to determine whether a fish is a fish or not, it is determined from the image information displayed on the TV screen that this is a red sea bream and a fishing line is dropped and fished. There is a need. As a result, it is determined whether or not the fish is and what kind it is. For a person who performs target fishing (attempting to catch a specific fish), this trial and error often takes a long time. Also,
Changing the lure in target fishing reduces the fishing efficiency. If a fish finder identifies a fish species, a lure suitable for the fish can be easily and quickly selected. An object of the present invention is to provide a fish finder with a fish species recognition function that solves the above-mentioned conventional drawbacks and informs a fisher of the type of fish, the size of the fish school, and the position thereof, thereby enabling efficient fishing. To provide.

[0004]

According to a first aspect of the present invention, there is provided a fish finder with a fish species recognizing function, which includes an underwater sound collecting microphone for receiving a swimming sound of a school of fish, and a storage device for storing swimming sound data for each fish type. Means, control means for comparing the swimming sound data of the fish collected by the underwater sound collecting microphone with the swimming sound data stored in the storage means to determine the fish type, and displaying the fish type determined by the control section. And a display means. Claim 2
The invention according to claim 1, further comprising an ultrasonic sensor for specifying the position of the school of fish, wherein the control means converts the swimming sound data of the fish collected by the underwater sound collecting microphone and the fish position data detected by the ultrasonic sensor. At least underwater information for specifying a fish species is determined based on the information, and the underwater information is displayed on the display means. A third aspect of the present invention is characterized in that, in the second aspect of the present invention, the underwater information is, in addition to the fish species, the depth of the fish and the size of the school.

[0005]

According to the first aspect of the present invention, since the stored swimming sound data for each fish type is compared with the swimming sound data collected by the underwater sound collecting microphone to identify the fish type, the target fish type is specified. It is possible to easily confirm whether or not there is any fish species by looking at the display, and it is possible to perform efficient fishing. According to the invention of claim 2, when the fish position information is received by the ultrasonic sensor, the swimming sound data is collected by the underwater sound collecting microphone, and is compared with the stored swimming sound data for each fish type to specify the fish type. Therefore, it is possible to provide underwater information to which the location of the determined fish species is added, so that more efficient fishing can be performed. According to the third aspect of the present invention, by providing the fish species, the water depth at which the fish is located, and the size of the school as underwater information, it is possible to finely prepare fishing corresponding to the target fish species, and in particular, inexperienced anglers A great help to

[0006]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a fish finder with a fish species recognition function according to the present invention. The swimming sound of the school of fish shows a characteristic waveform according to the fish species,
It analyzes the swimming sounds of various types of fish such as blackfish and sea bass, and creates a swimming sound pattern for each fish species based on the data. In the present invention, a swimming sound pattern created for each fish species created in advance is stored, and the fish species is specified by comparing it with actually collected swimming sound data.

In FIG. 1, a fish finder with a fish species recognition function includes an ultrasonic sensor 1 for specifying the position of a fish school, an underwater sound collecting microphone 2 for receiving the swimming sound of a school of fish, an ultrasonic signal and a swimming sound of a fish. , A storage unit 4 for storing swimming sound data for each fish type, and a display unit 5 having a screen for displaying underwater information.

FIG. 2 shows a system configuration. As for hardware, an ultrasonic sensor 1 and an underwater sound collecting microphone 2 are connected to an external interface of a personal computer (hereinafter, referred to as a personal computer) 10 which is currently mainstream. Control unit 3
The personal computer 10 is a small, lightweight, and highly portable notebook PC, and incorporates a database constituting the storage unit 4 and a swimming sound recognition control unit (such as a determination algorithm) as software. Display 5
Is constituted by the liquid crystal display 11 of the personal computer 10, the sound is collected by the underwater sound collecting microphone 5, and underwater information is displayed every moment based on the input underwater sound data.

A vibration damping / fixing device 20 having a function of stabilizing equipment on a table due to vibration of a ship is provided, and the notebook computer 10 is installed on the vibration damping / fixing device 20. As shown in FIG. 3, the vibration damping and fixing device 20 has a holding portion 21 for sandwiching the notebook computer 10 from both sides, and a slide mechanism 22 that can slide the holding portion 21 in the direction of the arrow shown in the drawing. Different laptops 1
Even if it is 0, it can be fixed to the table by sandwiching it from both sides. Ultrasonic sensor 1 and underwater sound collecting microphone 2
Is configured in one piece and is attached to the ship in advance,
It is connected to the notebook computer 10 by the RS232C cable 6. The ultrasonic sensor 1 operates as the ship progresses,
An underwater state is input to the notebook computer 10 through the RS232C cable 6.

Next, the operation of the embodiment of the present invention will be described.
FIG. 4 is a flowchart of the determination algorithm. An ultrasonic wave is transmitted from the ultrasonic sensor (step S1), and the ultrasonic wave that is reflected by the object and returned is received (step S1).
2) It is determined from the received signal whether any object exists in the water (step S3). When it is determined that the object does not exist, the process returns to step S1, and the ultrasonic wave is transmitted again. If it is determined that an object is present, underwater swimming sounds are collected (step S4), and the size, shape, and water depth of the object are calculated from data obtained by the ultrasonic sensor (step S4).
5). On the other hand, the collected swimming sounds are collated with the data for each fish type in the database to determine whether or not they match (step S6). If they do not match, the fish type is not registered in the database or is not the target fish type. Therefore, the process returns to step S1 to detect the object again. In the case of coincidence, a single fish species or a plurality of fish species may be applicable. Therefore, a probability calculation representing “%” indicating the degree of coincidence with the actual fish species is performed ( Step S7). Several types of fish that match with high probability as a result of the collation are displayed on the screen (step S8). FIG. 5 shows an example of a screen display.
Drawing is performed in two dimensions, and the fish and the position of the fish are displayed by the fish mark 13. When the fish mark 13 is clicked, the probability of matching of the fish type shown in FIG. 6 is displayed in%.

According to this embodiment, when a fish species is specified by a swimming sound pattern of a fish, a fish mark is displayed on a liquid crystal display portion of a personal computer so that a fisherman can know the position of the fish. . In the case where floating substances (plankton, etc.) exist in the water, swimming sounds cannot be collected, so that it is easy to determine whether they are fish or swimming sounds. By collecting a swimming sound pattern and comparing its waveform with the swimming sound pattern in the database by a software judgment algorithm, it is possible to know whether or not there is a fish that the angler is aiming for. It is a great help for people.

[Brief description of the drawings]

FIG. 1 is a block diagram of a fish finder with a fish species recognition function according to the present invention.

FIG. 2 is a schematic diagram of a system configuration of the present invention.

FIG. 3 is a perspective view of the vibration damping fixing device.

FIG. 4 is a flowchart of a determination algorithm for recognizing fish species.

FIG. 5 is a diagram showing an example of a screen display.

FIG. 6 is a diagram illustrating an example of displaying a list of fish species probabilities.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ultrasonic sensor 2 Underwater sound collecting microphone 10 Laptop computer 11 Liquid crystal display 12 Screen display example 20 Vibration reduction fixing device

Claims (3)

[Claims] 1. An underwater sound collecting microphone for receiving a swimming sound of a school of fish, a storage means for storing swimming sound data for each fish species, and a swimming sound data of fish collected by the underwater sound collecting microphone and stored in the storage means. A fish finder with a fish type recognizing function, comprising: control means for collating the detected swimming sound data to determine the fish type; and display means for displaying the fish type determined by the control unit. 2. An ultrasonic sensor for specifying the position of a school of fish, wherein the control means at least based on swimming sound data of the fish collected by the underwater sound collecting microphone and fish position data detected by the ultrasonic sensor. The fish finder with a fish species recognition function according to claim 1, wherein underwater information for specifying a fish species is determined, and the underwater information is displayed on the display means. 3. The fish finder with a fish species recognition function according to claim 2, wherein the underwater information is, in addition to the fish species, the depth of the fish and the size of the school.