JPWO2018037638A1 - Surviving fish management system - Google Patents

Abstract

Provide a system that can manage live fish easily.
The surviving fish management system in the fishing boat of the present invention has a movement path for moving the fish that have been picked up to a freezing fish rod, and a fish that moves on the movement path at a time when it passes through a plurality of specific locations on the movement path. Image acquisition means for imaging, counting means for counting the number of fish that have moved along the moving path from the number of acquired images, and image selection for selecting a fish type determination image and a size determination image for each fish Means for determining the type of fish in the image from the selected image for determining the fish type, and size determining means for determining the size of the fish in the image from the selected image for determining the size It is characterized by including.

Description

  The present invention relates to a living fish management system in a fishing boat.

  Conventionally, in order to facilitate smooth response at the landing port in skipjack fishing, tuna fishing, etc., it has been reported that the fishing boat communicates the approximate amount of landing to the port before entering the port.

  According to the method, for example, in a bid at a market in a port, the participant can determine whether or not to participate in the auction based on the information on the amount of landing in advance. It can be prevented to some extent that it is too much or too little.

  However, because the prediction of the amount of landing on a fishing boat depends on the fisherman's sense, accurate information such as the number, type, and size of fish cannot be obtained. For example, the actual landing amount may differ from the expected amount. . In this case, when the number of participants in the auction is too much or too little for the amount of arrival, there is a problem that the number of fish as products becomes insufficient or the price of the auction fluctuates.

  For this reason, there has been a demand for a new technique that can obtain information on the amount of landing such as the number, type, and size of fish more accurately on a fishing boat.

  Then, this invention aims at provision of the survival fish management system which can solve the said problem.

In order to achieve the above object, the live fish management system in the fishing boat of the present invention comprises:
A moving path for moving the fish that have been picked up to a freezing fish rod;
Image acquisition means for capturing the fish moving on the moving path at a time when passing through a plurality of specific locations on the moving path;
Counting means for counting the number of fish that have moved on the moving path from the acquired number of images,
Image selection means for selecting an image for fish type determination and an image for size determination for each fish;
From the selected fish type determination image, fish type determination means for determining the type of fish in the image,
And a size determining means for determining the size of the fish in the image from the selected size determination image.

  According to the survival fish management system of the present invention, for example, information on the number, type, and size of fish can be obtained more accurately on a fishing boat. For this reason, for example, it is possible to convey more accurate information prior to landing to the parties involved in the market where the fishing boat enters the port and the participants of the auction, which can be used for smooth operation of the market.

  In the surviving fish management system according to the present invention, for example, the image acquisition means further includes a shake correction means due to the shaking of the fishing boat.

  In the living fish management system of the present invention, for example, the shake correction means is a gyro sensor.

  In the surviving fish management system of the present invention, for example, the moving path has a narrow area where fish can pass one by one, and the area includes the plurality of specific portions.

  In the living fish management system of the present invention, for example, the moving path has a scale indicating a length in the passing direction.

  In the living fish management system of the present invention, for example, the moving path has a waterproof sheet on the bottom surface where the fish contacts.

  In the living fish management system of the present invention, for example, the moving path is a shooter or a belt conveyor.

  The living fish management system of the present invention further includes, for example, a light irradiation unit and a light amount adjustment unit that adjusts the light amount of the light irradiation unit.

  As described above, the living fish management system (hereinafter also referred to as “management system”) in the fishing boat of the present invention moves the moving fish that has been picked up to the freezing fish rod, and the moving path. An image acquisition unit that captures a fish at a time when it passes through a plurality of specific locations on the moving path, a counting unit that counts the number of fish that have moved on the moving path from the acquired number of images, and a fish type for each fish An image selecting means for selecting an image for determination and an image for size determination; a fish type determining means for determining the type of fish in the image from the selected image for determining the fish type; and And size determining means for determining the size of the fish in the image from the image. In the present invention, other configurations and conditions are not particularly limited.

  In the management system of the present invention, the fish is not particularly limited, and is, for example, skipjack, tuna, bigeye, yellowfin, or albacore.

  In the management system of the present invention, the surviving fish is a surviving fish. The surviving fish is, for example, a fish at a stage after fishing and before being frozen and stored in a freezing fish rod on board.

  In the management system of the present invention, the image acquisition unit is not particularly limited as long as it can acquire an image of the fish moving on the moving path, and is, for example, a camera.

  The image acquisition means captures an image of a fish moving on the moving path at a time when it passes through a plurality of specific locations on the moving path. For example, the image acquisition unit may image one fish on a single image, or may image a plurality of fish. The former is preferred.

  The plurality of specific locations on the travel path is not particularly limited. In this way, by imaging the fish that moves on the moving path at the time of passing through a plurality of specific locations, for example, an image more suitable for determination can be selected from the plurality of captured images.

  The image acquisition unit may further include, for example, a blur correction unit due to fishing boat shaking. The blur correction unit is, for example, a gyro sensor. Thereby, for example, by correcting the image blur due to the shaking of the fishing boat, information on the number, type, and size of the fish can be obtained more accurately.

  In the management system of the present invention, the moving path is not particularly limited as long as the fish that have been picked up can be moved to the freezing fish rod, and is, for example, a shooter or a belt conveyor. The moving path may have, for example, a narrow area through which fish can pass one by one, and the area may include the plurality of specific locations. Thereby, for example, fish images can be acquired one by one. Further, for example, since the direction of the major axis direction of the fish body can be aligned, it is possible to easily determine the size of the fish in the captured image. For example, the moving path may have a scale indicating a length in the passing direction. Thereby, for example, the size of the fish can be easily measured. The moving path may have a waterproof sheet on the bottom surface where the fish contacts, for example. Thereby, for example, since it is possible to prevent the fish from sliding along the moving path, a clearer image can be acquired.

  In the management system of the present invention, the counting means is not particularly limited as long as it can count the number of fish that have moved on the moving path from the acquired number of images. The counting means can count the number of images as the number of fish, for example, when imaging one fish in one image.

  In the management system of the present invention, the image selection means selects a fish type determination image and a size determination image for each fish. The image selection means is not particularly limited, and is, for example, a central processing unit (CPU). The fish type determination image can be selected based on, for example, whether or not a fish pattern or fin is captured. The image for size determination can be selected based on, for example, whether or not the entire body has been imaged.

  In the management system of the present invention, the fish type determination means determines the type of fish in the image from the selected fish type determination image. The said fish kind determination means is not specifically limited, For example, it is a central processing unit (CPU). The type of fish can be determined by, for example, body shape, fin shape, and pattern.

  In the management system of the present invention, the size determination means determines the size of the fish in the image from the selected size determination image. The size determination unit is not particularly limited, and is, for example, a central processing unit (CPU). The size can be determined, for example, by comparing the number of pixels in the long axis direction with the scale of the moving path in the captured fish image.

  The management system of the present invention further includes, for example, a light irradiation unit and a light amount adjustment unit that adjusts the light amount of the light irradiation unit. The light irradiation means is, for example, an LED light. The light amount adjusting unit is not particularly limited as long as it can adjust the light amount of the light irradiation unit. The light amount adjusting unit adjusts the light amount of the light irradiating unit according to ambient brightness, for example. Thereby, for example, a clearer image can be acquired even at night.

  The present invention has been described above with reference to the embodiments. However, the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

  This application claims the priority on the basis of Japanese application Japanese Patent Application No. 2016-165308 for which it applied on August 26, 2016, and takes in those the indications of all here.

According to the surviving fish management system of the present invention, for example, the information on the number, type, and size of fish can be obtained more accurately on a fishing boat. It is possible to convey more accurate information to those who are able to operate the market smoothly. For this reason, it can be said that this invention is very useful in fields, such as a fishery.

Claims (8)

A moving path for moving the fish that have been picked up to a freezing fish rod;
Image acquisition means for capturing the fish moving on the moving path at a time when passing through a plurality of specific locations on the moving path;
Counting means for counting the number of fish that have moved on the moving path from the acquired number of images,
Image selection means for selecting an image for fish type determination and an image for size determination for each fish;
From the selected fish type determination image, fish type determination means for determining the type of fish in the image,
A surviving fish management system in a fishing boat, comprising: a size determining unit that determines a size of a fish in the image from a selected size determination image. The living fish management system according to claim 1, wherein the image acquisition unit further includes a blur correction unit caused by shaking of a fishing boat. The living fish management system according to claim 2, wherein the blur correction unit is a gyro sensor. The travel path has a narrow area where fish can pass one by one,
The living fish management system according to any one of claims 1 to 3, wherein the region includes the plurality of specific locations. The living fish management system according to any one of claims 1 to 4, wherein the moving path has a scale indicating a length in a passing direction. The living fish management system according to any one of claims 1 to 5, wherein the moving path has a waterproof sheet on a bottom surface with which the fish contacts. The living fish management system according to any one of claims 1 to 6, wherein the moving path is a shooter or a belt conveyor. The living fish management system according to any one of claims 1 to 7, further comprising a light irradiation unit and a light amount adjustment unit that adjusts a light amount of the light irradiation unit.