JP2018121647A - Chum container capable of detecting amount of chum, and bait detector capable of detecting whether fishhook holds bait - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chum container capable of detecting the residual quantity of chum.SOLUTION: A chum container according to one embodiment of the invention comprises: a body enabled to accommodate the chum therein; and a residual amount detecting part for detecting the residual amount of the chum accommodated in said body. A residual quantity signal indicating the residual of the chum detected by the residual amount detecting part is set into water by a transmission part.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a bait container that contains fishing bait, and more particularly, to a bait container that can detect the remaining amount of bait contained in the bait container. The disclosure of the present specification also relates to a detection device that can detect whether a fishing hook is holding bait.

  A general bait container is configured to accommodate bait (also referred to as “konase”) inside and to release the bait into water. Since the fishing hook is attached to the bait container via Harris, the fish can be attracted around the fishing hook by the bait released from the bait container.

  Since the bait container discharges the bait in the water, the remaining amount of the bait remaining in the bait container cannot be visually recognized by anglers on the water. If the bait container is emptied, the fish cannot be drawn around the fishhook and the fishing results will be adversely affected. On the other hand, in order to prevent the bait container from being emptied, the bait container may be replenished by pulling the bait container out of the water at a timing when the bait container remains sufficiently. However, even in this case, time for lifting the bait container, replenishing the bait, and re-feeding the bait container to a predetermined water depth is wasted, and the fishing results are adversely affected. In addition, since it is not possible for a fisherman on the water to see whether or not the fishhook is holding bait, it can be left without food on the fishhook, or the fishhook can be used for confirmation despite the bait on the fishhook. May be raised.

  Therefore, a bait container that can inform the angler that the internal bait is empty has been studied. For example, Japanese Patent Application Laid-Open No. 2002-345382 (Patent Document 1) discloses a bait container that can release a predetermined amount of bait for each angler's operation (shacking). According to the bait container described in Patent Document 1, since a predetermined amount of bait is released by one scouring, it is said that the angler can know the remaining amount of the bait by the number of squealing. Japanese Patent Laying-Open No. 2006-333754 (Patent Document 2) discloses a bait container having a reciprocating member configured to push bait inside the container into water from an opening provided in the container. Yes. The moving speed of the reciprocating member is adjusted so as to release all the food inside the container in a predetermined time. Therefore, according to the bait container of Patent Document 2, the angler can determine that the bait container is empty when the predetermined time has elapsed. Regarding the fishhook, as described in JP-A-2002-360123 (Patent Document 3), a fishhook designed to prevent the bait from dropping off has been proposed.

JP 2002-345382 A JP 2006-333754 A JP 2002-360123 A

However, since the amount of food released from the food container changes according to the amount of food contained and the water flow around the food container, in the conventional food container described above, when the food container becomes empty Cannot be detected accurately. For example, in the bait container described in Patent Document 1 above, the amount of bait that is released per scoring can change depending on the surrounding environment, so that the bait container can be emptied with a number of times less than estimated. On the contrary, the bait container may not be emptied after the estimated number of squirrels. In addition, in the food container described in Patent Document 2, food is released by the action of the reciprocating member even if the displacement speed of the reciprocating member is adjusted so that all the food is released in a predetermined time. There is a risk that the bait container will be emptied due to the influence of water flow.

  Thus, in the conventional food container, the amount of food remaining in the food container is only estimated based on the number of squeezing and the displacement speed of the reciprocating member, not the amount of remaining food. Because of this and other factors, it is impossible to accurately grasp the timing at which the bait stored in the bait container becomes empty.

  Moreover, even if it is devised to drop the bait from the fishhook, it is not possible to completely prevent the bait from dropping from the fishhook. On the other hand, there is no known device or method for detecting whether a fishhook is holding bait.

  Accordingly, an object of the present disclosure is to provide a bait container that can detect the remaining amount of bait. Another object of the present disclosure is to provide a detection device that can detect whether or not bait is held on a fishing hook. Other purposes will be apparent from the entire specification.

  A bait container according to an embodiment of the present invention includes a main body configured to accommodate bait therein, a remaining amount detection unit that detects the remaining amount of bait contained in the main body, and the remaining amount detection A transmission unit that transmits a remaining amount signal indicating the remaining amount of bait detected by the unit.

  According to this embodiment, the amount of food remaining in the food container can be grasped based on the remaining amount signal for detecting the remaining amount of food. When the bait is emptied, a remaining amount signal indicating that the remaining amount is zero is transmitted, so that it is possible to accurately know the timing at which the bait is emptied based on the remaining amount signal.

  In one embodiment of the present invention, the transmission unit is configured to convert the remaining amount signal into a sound wave and oscillate. In another embodiment of the present invention, the transmission unit can transmit the residual signal using an electromagnetic wave as a carrier wave. This electromagnetic wave may be, for example, an electromagnetic wave in the visible light band.

  According to the embodiment, since the remaining amount signal is transmitted by sound waves that are less likely to attenuate in water than electromagnetic waves, even when the bait container is in water, the remaining amount signal is more efficiently used than when electromagnetic waves are used as a carrier wave. Can be transmitted.

  In addition, the attenuation rate of electromagnetic waves in water has a characteristic that it is significantly lower in the visible light band than in other bands. Therefore, even when the bait container is in water, the remaining amount signal can be efficiently transmitted by wirelessly transmitting the remaining amount signal using electromagnetic waves in the visible light band. Further, since the electromagnetic wave has a higher transmission speed than the sound wave, the remaining amount signal can be transmitted in a short time.

The remaining amount detection unit of the present invention can detect the remaining amount of bait contained in the main body by various methods. For example, the remaining amount detection unit according to an embodiment of the present invention includes a photoelectric conversion unit that detects the amount of light corresponding to the remaining amount of bait contained in the main body. Moreover, the remaining amount detection part which concerns on other embodiment of this invention has a probe which changes according to the residual amount of the bait accommodated in the main body, and a displacement detection part which detects the displacement of the said probe. . Moreover, the remaining amount detection part which concerns on other embodiment of this invention is comprised so that the load which changes according to the residual amount of the bait currently accommodated in the main body may be detected. The remaining amount detection unit according to still another embodiment of the present invention is a concentration of a substance that changes according to the remaining amount of food in the main body, for example, a salinity concentration, a pH (a value related to a hydrogen ion concentration). ), And at least one of the sugar concentrations.

  The bait remaining amount output device according to an embodiment of the present invention includes a receiving unit that receives a remaining amount signal transmitted from a bait container configured as described above, and the bait container based on the remaining amount signal. And an output unit that outputs information indicating the remaining amount of bait contained in the body.

  According to the embodiment, the angler can grasp the remaining amount of bait in the bait container from the information indicating the remaining amount of bait output from the output unit, and the timing when the bait container becomes empty In order to replenish the bait, the bait container can be lifted from the water.

  The bait detection apparatus which concerns on one Embodiment of this invention is the detection part which detects whether the bait is hold | maintained at the fishing hook, and whether the bait is hold | maintained according to the detection result of the said detection part. And a transmission unit that transmits a determination signal indicating the above.

  According to the embodiment, based on the determination signal indicating whether the bait is held on the fishhook, it is possible to grasp whether the bait is held on the fishhook.

  The detection part of this invention can detect whether the bait is hold | maintained at the fishing hook by various methods. For example, a detection unit according to an embodiment of the present invention includes a light projecting unit that emits detection light, and a light receiving unit that receives reflected light returned from the direction of the fishhook. In addition, a remaining amount detection unit according to another embodiment of the present invention includes an optical sensor surrounded by bait attached to the fishing hook. The remaining amount detection unit according to still another embodiment of the present invention is in the first position when bait is held on the fishhook and in the second position when the bait is not held on the fishhook. And a position sensor for detecting the position of the probe. A remaining amount detection unit according to still another embodiment of the present invention includes a concentration sensor surrounded by bait attached to the fishhook.

  An information output device according to an embodiment of the present invention includes a receiving unit that receives a determination signal transmitted from a bait detection device configured as described above, and bait is held on the fishhook based on the determination signal. And an output unit for outputting information indicating whether or not.

  According to the embodiment, the angler can grasp whether or not the bait is held on the fishhook based on the information indicating whether or not the bait is held on the fishhook output from the output unit. The fishhook can be lifted out of the water to reattach the bait when the bait runs out.

  As described above, according to various embodiments of the present invention, a bait container capable of detecting the remaining amount of bait can be provided. In addition, according to various embodiments of the present invention, it is possible to provide a detection device that can detect whether bait is held on a fishing hook.

The figure which shows schematically the feed residual amount detection system which concerns on one Embodiment of this invention. The figure which shows schematically the bait container which concerns on one Embodiment of this invention. The graph for demonstrating the relationship between the light reception amount of the light reception sensor with which the bait container which concerns on one Embodiment of this invention was equipped, and the residual amount of the bait in the said bait container The typical figure showing the relationship between the elapsed time after throwing the bait container which concerns on one Embodiment of this invention in water, and the acoustic signal obtained by frequency-modulating a residual amount signal. The figure which shows schematically the bait container which concerns on other embodiment of this invention. The figure which shows schematically the bait container which concerns on other embodiment of this invention. The figure which shows schematically the bait container which concerns on other embodiment of this invention. The figure which shows schematically the bait container which concerns on other embodiment of this invention. The figure which shows schematically the bait container which concerns on other embodiment of this invention. The figure which shows schematically the bait detection apparatus which concerns on one Embodiment of this invention. The figure which shows schematically the bait detection apparatus which concerns on other embodiment of this invention. The figure which shows schematically the bait detection apparatus which concerns on other embodiment of this invention. The figure which shows schematically the bait detection apparatus which concerns on other embodiment of this invention. The figure which shows schematically the bait detection apparatus which concerns on other embodiment of this invention.

  Hereinafter, various embodiments of the present invention will be described with reference to the drawings as appropriate. In addition, the same referential mark is attached | subjected to the common component in drawing.

  First, with reference to FIG. 1, the outline | summary of the bait residual quantity detection system which concerns on one Embodiment of this invention is demonstrated. As shown in the figure, the feed remaining amount detection system according to an embodiment of the present invention is based on the feed container 100 that transmits a remaining amount signal indicating the remaining amount of food and the remaining amount signal from the feed container 100. And an information output device 120 that outputs information indicating the remaining amount of the bait stored in the main body of the bait container. The information output device 120 is installed, for example, on a ship on which an angler is on board. An information output apparatus 120 according to an embodiment of the present invention includes a reception unit 121, a demodulation unit 122, and an output unit 123. Details of the information output device 120 will be described later.

  Next, with reference to FIG. 2, the bait container 100 which concerns on one Embodiment of this invention is demonstrated. The bait container 100 shown in FIG. 2 includes a main body 101, a lid 111 that covers the upper portion of the main body 101, and a base portion 112 that covers the lower portion of the main body 101. One end of a road thread 107 extending from the fishing rod R is attached to the lid 111. Harris is attached to the lower end of the base 112, and a fishing hook 108 is attached to the tip of this Harris.

  The main body 101 is formed in a hollow cylindrical shape, for example, and the bait 105 is accommodated in the hollow internal space. The salmon bait 105 is an arbitrary bait with a fish collecting effect, and for example, krill, fish mince, roasted rice cake, and pupa powder (pulverized silkworm carcass) are used. The main body 101 is made of, for example, a synthetic resin, and has one or more communication holes that allow the inside and the outside to communicate with each other so that bait can be released into water. The position, size, and number of the communication holes are not limited, and communication holes of various sizes and numbers may be provided at various positions depending on the type of the bait 105, the fish species to be fishing, and other factors. Can be provided. The lid 111 may be attached to the main body 101 so that the lid 111 can be opened and closed with respect to the main body 101, and the bait 105 may be released into the water by opening the lid 111 in water.

The bait container 100 shown in FIG. 2 includes a remaining amount detection unit 102 including a light projecting unit 1022 and a light receiving unit 1021, a signal processing unit 103, a transmission unit 104, and a power source 106. The remaining amount detection unit 102 includes a light projecting unit 1022 provided on the lid 111 and a light receiving unit 1021 provided on the base 112, and can detect the remaining amount of the food 105 in the food container 100. As will be described later, the signal processing unit 103 generates a remaining amount signal indicating the remaining amount of the bait 105 detected by the remaining amount detecting unit 102, and the transmitting unit 104 sends the remaining amount signal to the information output device 120. Send. The power source 106 supplies necessary power to the remaining amount detection unit 102, the signal processing unit 103, the transmission unit 104, and other electronic components. The power source 106 may be, for example, a small button battery, an environmental temperature difference, vibration, an energy generation type battery that converts light energy into electric power, and any other battery. The remaining amount detection unit 102, the signal processing unit 103, the transmission unit 104, and the power source 106 are appropriately waterproofed so as to prevent leakage.

  The light receiving unit 1021 is provided on the base 112 so as to face the light projecting unit 1022, and is configured to receive light emitted from the light projecting unit 1022 and transmitted through the internal space of the main body 101. The light projecting unit 1022 is, for example, a light emitting diode (LED), and can emit light in a predetermined band. The light projecting unit 1022 is configured to emit light in a band that has high permeability in water and is easily blocked (damped easily) by the bait 105. The light emitted from the light projecting unit 1022 may be, for example, visible light, infrared light, or other light in a frequency band near the visible light band.

  The light receiving unit 1021 includes a photoelectric conversion element such as a photodiode. This photoelectric conversion element is, for example, a known cadmium sulfide cell. The photoelectric conversion element of the light receiving unit 1021 can generate an amount of electric charge corresponding to the amount of received light, read an electric signal (for example, a voltage value) corresponding to the amount of the generated electric charge, and output it as an output signal. In order that the light receiving unit 1021 can receive a sufficient amount of light, the light projecting unit 1022 may be provided with a condenser lens. Further, in order to prevent ambient light from the surroundings of the bait container 100 from entering the light receiving unit 1021 and generating noise, a light shielding member that does not transmit light is attached to the main body 101, or a synthetic resin that does not transmit light is used. The main body 101 may be formed.

  As described above, the light receiving unit 1021 is provided so as to face the light projecting unit 1022, and is configured to receive light transmitted from the light projecting unit 1022 through the internal space of the main body 101. When the amount of the bait 105 remaining in the interior space is large, the light from the light projecting unit 1022 is blocked by the bait 105 and the voltage output from the light receiving unit 1021 is reduced. When the bait 105 is discharged into the water and the amount of the bait 105 remaining in the bait container 100 decreases, the amount of incident light to the light receiving unit 1021 increases and the voltage output from the light receiving unit 1021 increases. The relationship between the remaining amount of the bait 105 in the bait container 100 and the amount of incident light to the light receiving unit 1021 (that is, the output of the remaining detection unit 102) is expressed as a graph shown in FIG. 3, for example. The graph of FIG. 3 shows that the amount of light incident on the light receiving unit 1021 monotonously decreases with respect to the remaining amount of the bait 105 in the bait container 100. Thus, the remaining amount of the bait 105 in the main body 101 can be detected by the output of the light receiving unit 1021.

  In one embodiment of the present invention, the light projecting unit 1022 can be omitted. In this case, the light receiving unit 1021 outputs an electrical signal corresponding to the amount of ambient light incident through the main body 101. Thus, even if the light projecting unit 1022 is omitted, the remaining amount of the bait 105 in the main body 101 can be detected by the output of the light receiving unit 1021.

  The signal processing unit 103 generates a remaining amount signal indicating the remaining amount of food in the food container 100 based on the electrical signal output from the remaining amount detection unit 102. In one embodiment, the signal processing unit 103 compares the value of the electrical signal (for example, voltage) output from the remaining amount detection unit 102 at predetermined time intervals with a predetermined threshold value, and according to the comparison result, the food container 100 The remaining amount of the bait 105 is determined. In one embodiment, as illustrated in FIG. 3, the signal processing unit 103 sets the remaining amount of the bait 105 to “high”, “medium”, and “low” in accordance with the output signal from the remaining amount detection unit 102. It is possible to make a determination in three stages and generate a remaining amount signal representing the determination result. In the example shown in FIG. 3, the signal processing unit 103 compares the value (for example, voltage value) of the output signal of the remaining amount detection unit 102 with predetermined threshold values T1 and T2, and the value of the output signal is higher than the threshold value T1. If it is small, the remaining amount is determined as “many”. If the threshold value is equal to or greater than the threshold value T1 and smaller than the threshold value T2, the remaining amount is determined as “medium”. judge. The remaining amount of the bait 105 may be determined in any number of stages as necessary, and may be determined in any of two stages, five stages, and ten stages, for example.

  Further, the signal processing unit 103 generates a modulated wave by modulating the carrier wave with the remaining amount signal, and transmits the modulated wave from the transmitting unit 104 to the water. The remaining amount signal is modulated using various analog modulations or digital modulations. When analog modulation is used, the remaining amount signal is D / A converted before modulation. Various known modulation schemes can be used to modulate the remaining amount signal. For example, amplitude modulation, frequency modulation, phase modulation, and various other modulation methods can be used.

  To carry the remaining amount signal, various carrier waves, for example, sound waves and electromagnetic waves of various bands can be used. In one embodiment, ultrasound is used as the carrier wave. In other embodiments, an electromagnetic wave in the visible light band is used as a carrier wave. Since sound waves have a smaller attenuation rate in water than electromagnetic waves, the remaining amount signal can be efficiently transmitted to the information output device 120 by using sound waves as carrier waves. Visible light has been found to have a significantly lower attenuation rate in water than electromagnetic waves in other bands (see, for example, “The Basics and Applications of Ocean Acoustics” edited by the Ocean Acoustics Society of Nariyamado Shoten. Therefore, the remaining amount signal can be efficiently transmitted to the information output device 120 by using the electromagnetic wave in the visible light region.

  When the acoustic signal obtained by frequency-modulating the ultrasonic wave with the remaining amount signal is transmitted from the bait container 100, the acoustic signal changes as shown in FIG. 4, for example. FIG. 4 is a schematic diagram showing the relationship between the elapsed time since the bait container 100 was put into water and the acoustic signal obtained by frequency-modulating the remaining amount signal. The horizontal axis of FIG. 4 represents the elapsed time after feeding the bait container 100 into water, and the vertical axis represents the amplitude of the acoustic signal. In the example of FIG. 4, since the frequency modulation is used, the amplitude of the acoustic signal is constant. Since the amount of the remaining bait 105 is large at the beginning when the bait container 100 is put into the water, the carrier wave is modulated to the frequency f1 by the remaining amount signal indicating that the remaining amount of the bait 105 is large. After a while after the bait container 100 is put into the water, the bait 105 is reduced and a remaining amount signal indicating that the remaining amount is medium is detected. In this case, the carrier wave is modulated to a frequency f2 higher than the frequency f1 by a remaining amount signal indicating that the remaining amount is medium. When the time further elapses, a remaining amount signal indicating that the remaining amount of the bait 105 is small is detected, and the carrier wave is modulated to a frequency f3 higher than the frequency f2 by the remaining amount signal indicating that the remaining amount is small. Although FIG. 4 shows a case where the modulated carrier wave is transmitted intermittently, the carrier wave may be transmitted continuously.

  The transmission unit 104 is configured to transmit the remaining amount signal modulated by the signal processing unit 103. For example, when the carrier wave is an ultrasonic wave, the transmission unit 104 includes a piezoelectric element, generates an acoustic signal by vibrating the piezoelectric element based on the remaining amount signal from the signal processing unit 103, and outputs the acoustic signal. Can be sent underwater. When electromagnetic waves are used as the carrier wave, the transmission unit 104 includes a power amplifier and an antenna, amplifies the residual signal from the signal processing unit 103 with the power amplifier, and radiates the amplified modulation signal from the antenna. Configured.

  The signal transmitted from the transmission unit 104 is received by the reception unit 121 of the information output device 120. When receiving (receiving) a remaining amount signal modulated into an ultrasonic wave, a hydrophone that converts the received ultrasonic wave into an electrical signal can be used as the receiving unit 121. When the remaining amount signal is transmitted by wireless communication using electromagnetic waves, the reception unit 121 outputs the received wave received by the antenna to the demodulation unit 122. When receiving the remaining amount signal modulated into visible light, a light receiving sensor can be used as the receiving unit 121.

The demodulation unit 122 amplifies the reception signal output from the reception unit 121 as necessary, and performs demodulation processing according to the modulation processing in the signal processing unit 103 to obtain a residual signal. For example, if the demodulator 122 detects a signal with the frequency f1, it determines that the remaining amount of the bait 105 is large, and if a signal with the frequency f2 is obtained, determines that the remaining amount of the bait 105 is medium. When the signal of the frequency f3 is obtained, it can be determined that the remaining amount of the bait 105 is small. The demodulation unit 122 outputs a signal (that is, a decoded remaining amount signal) corresponding to the determination result of the remaining amount of the bait 105 to the output unit 123.

  The output unit 123 is configured to transmit the amount of the bait 105 remaining in the bait container 100 to the angler based on the demodulated remaining amount signal from the demodulator 122. The output unit 123 according to the embodiment of the present invention includes, for example, a monitor that generates a display screen generated based on an output signal from the demodulation unit 122. This monitor is an arbitrary monitor such as a liquid crystal monitor. On this monitor, for example, the remaining amount of bait 105 remaining in the bait container 100 is displayed based on the remaining amount signal demodulated by the demodulator 122. For example, when the remaining amount signal demodulated by the demodulation unit 122 indicates that the remaining amount of the bait 105 in the bait container 100 is large, a display screen including a display to that effect (for example, “remaining amount of bait: many”) Is displayed on the monitor. The output unit 123 may indicate not only the latest remaining amount but also the remaining amount of time in a graph format.

  Moreover, the output part 123 which concerns on other embodiment of this invention can transmit the residual amount of the bait 105 to a angler with the color and light emission pattern of a warning light. This warning light includes, for example, an LED. In this case, the output unit 123 includes, for example, three LEDs that emit light in blue, white, and red, respectively. When the remaining amount is large, the blue LED is used. When the remaining amount is medium, the white LED is small. In this case, the remaining amount of the bait 105 can be notified to the angler by causing the red LED to emit light. Further, the angler can be notified of the remaining amount of the bait 105 by associating the blinking period of the LED with the remaining amount of the bait 105.

  Moreover, the output part 123 which concerns on other embodiment of this invention can transmit the residual amount of the bait 105 to a angler by the frequency | count of transmission and the sound volume per unit time of an acoustic signal (for example, buzzer). In this case, for example, the output unit 123 is configured to increase the number of transmissions per unit time of the buzzer or increase the volume of the buzzer as the remaining amount increases.

  In the case where the above-described system for detecting the amount of remaining bait is used, first, the bait container 100 is filled with a predetermined amount of bait 105. The angler attaches the bait container 100 to the fishing line together with other devices and throws it into the water. When the bait container 100 is thrown into the water, the internal bait 105 is gradually released into the water. The bait container 100 detects the remaining amount of the remaining bait 105 therein, modulates a carrier wave with a remaining amount signal indicating the detected remaining bait amount, and transmits the modulated carrier wave. The information output device 120 receives the transmission signal of the bait container 100, and obtains a remaining amount signal by demodulating and decoding the received signal. Based on the remaining amount signal, the angler is notified of the remaining amount of the bait 105 remaining in the bait container 100 by a liquid crystal monitor or a buzzer.

As described above, according to the embodiment of the present invention, the angler can accurately grasp the remaining amount of the bait 105 remaining in the bait container 100 without lifting the bait container 100. Moreover, since the angler can know that the remaining amount of the bait 105 has decreased by the output (screen display or acoustic signal) from the output unit 123, it is not necessary to pull up the bait container 100 at an incorrect timing. As described above, in the conventional bait container, since the remaining amount of bait is only estimated based on the number of times of scooping, etc., the bait container is actually used even though a sufficient amount of bait remains. Or, conversely, the bait container was left in the water for a while while the bait was empty. According to the embodiment of the present invention, since the remaining amount of the bait in the bait container is actually detected, the remaining amount of the bait can be accurately grasped regardless of the influence of the environment such as the water flow. As a result, it is possible to avoid mistaking that the amount of bait is low and pulling up the mechanism, or leaving the empty bait container unattended when there is enough bait remaining, so it is expected to improve fishing results. The In particular, in the case of fishing that takes time to collect the device (for example, when the bait container 100 is put into a deep shelf or when the device is thrown long), the effect of improving the fishing results by not performing extra pulling Can be expected greatly. Further, by appropriately adjusting the transmission period of the remaining amount signal from the bait container 100 to the information output device 120 (how many times it is transmitted per unit time), the angler can reduce the remaining amount of bait without delay. Can be understood.

  Next, with reference to FIG. 5, the bait container which concerns on other embodiment of this invention is demonstrated. FIG. 5 is a diagram schematically showing a bait container 200 according to another embodiment of the present invention. The bait container 200 is different from the bait container 100 in a specific method for detecting the remaining amount of the bait 105.

  As shown in FIG. 5, the bait container 200 includes a position detection sensor 2021, a probe 2022, a detection magnet 2023, and a spring 2024. The probe 2022 is a plate-like or rod-like member made of, for example, a synthetic resin, and is pivotally supported by the main body 101 or the lid 111 so as to be pivotable around the axis 2025. A permanent magnet 2023 is attached to the tip of the probe 2022. The permanent magnet 2023 rotates around the axis 2025 together with the probe 2022.

  The position detection sensor 2021 is provided on the track of the permanent magnet 2023 of the base 112, for example. The position detection sensor 2021 is a magnetic proximity sensor and includes, for example, a magnetic sensor such as a Hall element. The position detection sensor 2021 can output an electric signal corresponding to the position of the probe 2022 to the signal processing unit 103 by detecting the magnetic field of the permanent magnet 2023. The position detection sensor 2021 in the present embodiment is realized using various known position detection sensors or proximity sensors in addition to the magnetic proximity sensor. For example, the position detection sensor 2021 is an electric resistance type sensor that detects a change in electric resistance with the probe 2022, a capacitance type sensor that detects a change in capacitance with the probe 2022, an optical sensor, It may be a high-frequency oscillation type proximity sensor or various known position detection sensors other than these.

  The permanent magnet 2023 is always biased toward the position detection sensor 2021 by a spring 2024. The force biased from the spring 2024 to the probe 2022 is adjusted to a force that prevents the bait 105 from being pushed out of the bait container 100 by the probe 2022 biased by the spring 2024. The permanent magnet 2023 approaches the position detection sensor 2021 by rotating counterclockwise, and moves away from the position detection sensor 2021 by rotating clockwise.

  According to the bait container 200, when a sufficient amount of bait 105 remains in the bait container 200, the clockwise pressure around the axis 2025 acting on the probe 2022 from the bait 105 is counterclockwise of the spring 2024. The probe 2022 is positioned at the end in the clockwise direction (the left end in FIG. 5) overcoming the biasing force in the rotation direction. As the bait 105 is released and the remaining amount in the bait container 200 decreases, the biasing force of the spring in the counterclockwise direction becomes dominant, and the probe 2022 gradually moves in the counterclockwise direction to the position detection sensor 2021. Get closer. Thus, since the position of the probe 2022 is determined according to the remaining amount of the bait 105, the remaining amount of the bait 105 can be detected by detecting the position of the probe 2022. The signal processing unit 103 calculates the remaining amount of the bait 105 based on the output signal from the position detection sensor 2021, and generates a remaining amount signal representing the remaining amount. The remaining amount signal generated in this way is transmitted from the transmission unit 104 to the information output device 120. The information output device 120 can notify the angler of the remaining amount of the bait 105 in the bait container 200 based on the received remaining amount signal.

Next, a bait container according to still another embodiment of the present invention will be described with reference to FIG. FIG. 6 is a view schematically showing a bait container 300 according to still another embodiment of the present invention. The bait container 300 is different from the bait container 100 in a specific method for detecting the remaining amount of the bait 105.

  As shown in FIG. 6, the bait container 300 includes a pressure detection sensor 3021, a spring 3022, and a piston 3023. The piston 3023 is made of, for example, a disc-shaped mesh made of synthetic resin. The disc-shaped piston is formed in a circular shape whose outer periphery is slightly smaller than the inner periphery of the main body 101. The mesh eyes of the piston 3023 are formed with such a roughness that the bait 105 cannot pass through. A spring 3022 is attached near the center of the lower surface of the piston 3023, and is always biased upward by the spring 3022. Moreover, since the bait 105 is filled above the piston 3023, a downward pressure corresponding to the amount of the bait 105 acts on the upper surface of the piston 3023 from the bait 105. The piston 3023 can move in the vertical direction according to the pressure acting from the bait 105 and the force received from the spring 3022.

  The biasing force of the spring 3022 is adjusted to such a force that the bait 105 is not pushed out between the mesh of the piston 3023 or between the piston 3023 and the inner peripheral surface of the main body 101. A linear spring can be used as the spring 3022. Since the other end of the spring 3022 is connected to the pressure detection sensor 3021, the spring 3023 can apply a reaction force corresponding to the position of the piston 3023 to the pressure detection sensor 3021.

  As the pressure detection sensor 3021, any pressure detection sensor capable of measuring the pressure exerted by the spring 3022 on the surface can be used. The pressure detection sensor 3021 includes, for example, a strain gauge, and can output an electrical signal corresponding to the strain generated in the strain gauge to the signal processing unit 103.

  According to the bait container 300, when a sufficient amount of bait 105 remains in the bait container 200, the piston 3023 is near the lower end of its movable range due to the pressure applied from the bait 105 to the piston 3023. Stress is applied to the pressure detection sensor 3021. As the bait 105 is released and the remaining amount in the bait container 200 decreases, the pressure received by the spring 3022 from the bait 105 decreases. As a result, the pressure applied to the pressure detection sensor 3021 also decreases. Thus, since the pressure applied from the spring 3022 to the pressure detection sensor 3021 is determined according to the remaining amount of the bait 105, the signal processing unit 103 determines the remaining amount of the bait 105 based on the output signal from the pressure detection sensor 3021. And a remaining amount signal representing the detected remaining amount is generated. The remaining amount signal generated in the signal processing unit 103 is transmitted from the transmission unit 104 to the information output device 120. The information output device 120 can notify the angler of the remaining amount of the bait 105 in the bait container 200 based on the received remaining amount signal.

  Next, a bait container according to still another embodiment of the present invention will be described with reference to FIG. FIG. 7 is a view schematically showing a bait container 400 according to still another embodiment of the present invention. The bait container 400 is different from the bait container 100 in a specific method for detecting the remaining amount of the bait 105.

As shown in FIG. 7, the bait container 300 includes a concentration sensor 402. A part of the concentration sensor 402 is exposed to the internal space of the main body 101, and is configured to be able to measure the concentration of a substance present in the internal space. The concentration sensor 402 is, for example, a salt concentration meter that measures the concentration of salt in the internal space of the main body 101. When there is a salt concentration difference between the environment in which the bait container 400 is used and the bait 105, such as when the bait container 400 is used in fresh water and the bait 105 contains salt, the inside of the main body 101 by the concentration sensor 402 Based on the measurement result of the salinity concentration of the space, the amount of the bait 105 in the main body 101 can be detected. That is, it can be determined that when the salinity concentration in the main body 101 is high, the remaining amount of the bait 105 is large, and when the salinity concentration is low, the remaining amount of the bait 105 is small. As described above, the signal processor 103 detects the remaining amount of the bait 105 based on the output signal from the concentration sensor 402, and a remaining amount signal indicating the detected remaining amount is generated. The remaining amount signal generated in the signal processing unit 103 is transmitted from the transmission unit 104 to the information output device 120. The information output device 120 can notify the angler of the remaining amount of the bait 105 in the bait container 200 based on the received remaining amount signal.

  The concentration to be measured by the concentration sensor 402 is not limited to the salinity concentration, and various substances having different concentrations depending on the concentration in the internal space of the main body 101 and the environment in which the bait container 400 is used (water into which the bait container 400 is charged) The concentration can be measured. For example, a pH meter or a saccharimeter can be used as the concentration sensor 402.

  Next, a bait container according to still another embodiment of the present invention will be described with reference to FIG. FIG. 8 is a view schematically showing a bait container 500 according to still another embodiment of the present invention. The bait container 500 is a modification of the bait container 100 shown in FIG. 2, and the arrangement of the light projecting unit 1022 is different from the bait container 100. That is, in the bait container 500 shown in FIG. 8, the light projecting unit 1022 is provided not on the lid 111 but on the base 112. The light receiving unit 1021 is configured to receive the light emitted from the light projecting unit 1022 and reflected by the bait 105 in the main body 101.

  As described above, since the light receiving unit 1021 is configured to receive the reflected light of the light generated from the light projecting unit 1022, when the amount of the bait 105 remaining in the internal space of the main body 101 is large. Most of the light from the light projecting unit 1022 is reflected by the bait 105, and the voltage output from the light receiving unit 1021 is large. When the bait 105 is released into the water and the amount of the bait 105 remaining in the bait container 100 decreases, the amount of incident light to the light receiving unit 1021 decreases, and the voltage output from the light receiving unit 1021 decreases. Therefore, the remaining amount of the bait 105 in the main body 101 can be detected by the output of the light receiving unit 1021.

  As described above, the signal processing unit 103 detects the remaining amount of the bait 105 based on the output signal from the light receiving unit 1021 and generates a remaining amount signal indicating the detected remaining amount. The remaining amount signal generated in the signal processing unit 103 is transmitted from the transmission unit 104 to the information output device 120. The information output device 120 can notify the angler of the remaining amount of the bait 105 in the bait container 200 based on the received remaining amount signal.

  Next, with reference to FIG. 9, the bait container which concerns on further another embodiment of this invention is demonstrated. FIG. 9 is a view schematically showing a bait container 600 according to still another embodiment of the present invention. The bait container 600 includes an underwater microphone 4021 that emits ultrasonic waves for detection, and a hydrophone 4022 that receives reflected waves of the ultrasonic waves. The arrangement and orientation of the underwater microphone 4021 are adjusted so that, for example, ultrasonic waves can be emitted toward the inside of the main body 101. The hydrophone 4022 can output an electric signal to the signal processing unit 103 when receiving the reflected wave.

Based on the electric signal output from the hydrophone 4022, the signal processing unit 103 can measure the time required from receiving the detection ultrasonic wave from the underwater microphone 4021 to receiving the reflected wave. When the amount of the bait 105 remaining in the internal space of the main body 101 is large, the time from receiving the detection ultrasonic wave to receiving the reflected wave is short. On the other hand, the bait 105 is released into the water and is consumed. When the amount of the bait 105 remaining in the container 100 decreases, the time from receiving the detection ultrasonic wave to receiving the reflected wave becomes longer. Therefore, the signal processing unit 103 compares the time from when the detection ultrasonic wave is generated to when the reflected wave is received with a predetermined threshold value, so that the remaining amount of the fishing bait 105 remaining in the main body 101 remains. Can be detected.

  As described above, the signal processor 103 detects the remaining amount of the bait 105 based on the output signal from the hydrophone 4022, and a remaining amount signal indicating the detected remaining amount is generated. The remaining amount signal generated in the signal processing unit 103 is transmitted from the transmission unit 104 to the information output device 120. The information output device 120 can notify the angler of the remaining amount of the bait 105 in the bait container 200 based on the received remaining amount signal.

  Next, a bait detection apparatus according to an embodiment of the present invention will be described with reference to FIG. A bait detection device 700 illustrated in FIG. 10 includes a housing 701 formed in, for example, a hollow box shape, a bait detection unit 702, a signal processing unit 703, a transmission unit 704, and a power source 706. The bait detection unit 702, the signal processing unit 703, the transmission unit 704, and the power source 706 are accommodated in the housing 701. The housing 701 is waterproofed to prevent leakage of each member housed in the housing 701. The bait detection unit 702 includes a light projecting unit 7021 that emits detection light and a light receiving unit 7022 that receives reflected light generated by reflection of the detection light.

  The housing 701 is made of a synthetic resin such as polyethylene. One end of a road line 707 extending from the fishing rod R is attached to the upper portion of the housing 701. A Harris 709 is attached to the lower part of the housing 701, and a fishing hook 708 is attached to the tip of the Harris 709. A fishing bait 705 is attached to the fishing hook 708. The fishing bait 705 is an arbitrary fishing bait such as a live bait such as a krill, a shellfish, an isome, a seafood such as a shellfish, a sardine, a horse mackerel, or a kneaded bait.

  In one embodiment of the present invention, the bait detection device 700 is used in place of the bait container 100 shown in FIG. 1 or together with the bait container 100 and configured to transmit information to the information output device 120 from underwater. Is done. When the bait detection device 700 is used together with the bait container 100, the bait detection device 700 is provided between the bait container 100 and the fishing hook 108, for example.

  In one embodiment, the light projecting unit 7021 and the light receiving unit 7022 are accommodated below the housing 701, for example. At least a part of the housing 701 is formed to be transparent or translucent so as to transmit the detection light emitted from the light projecting unit 7021 and the reflected light directed to the light receiving unit 7022. The light projecting unit 7021 is, for example, a light emitting diode (LED), and can emit light in a predetermined band. The arrangement and orientation of the light projecting unit 7021 are adjusted so that at least the periphery of the fishing hook 708 is irradiated with detection light. For example, the light projecting unit 7021 is configured to emit light having a wavelength with a fish collection effect. The light emitted from the light projecting unit 7021 may be, for example, visible light, infrared light, or other light in a frequency band near the visible light band. The light receiving unit 7022 is configured in substantially the same manner as the light receiving unit 1021. That is, the light receiving unit 7022 generates an amount of electric charge according to the amount of received light, reads an electric signal (for example, a voltage value) corresponding to the amount of the generated electric charge, and uses the read electric signal as a signal processing unit 703. Can be output.

  In this manner, the detection light from the light projecting unit 7021 is irradiated around the fishing hook 708, the reflected light of the detection light is received by the light receiving unit 7022, and an electrical signal corresponding to the amount of the reflected light is output. Therefore, when the fishing bait 705 is held by the fishing hook 708, the reflected light reflected by the fishing bait 705 is incident on the light receiving unit 7022. Therefore, the light receiving unit is more than the case where the fishing bait 705 is dropped from the fishing hook 708. The amount of reflected light incident on 7022 is large.

The signal processing unit 703 determines whether or not the fishing bait 705 is held on the fishing hook 708 based on the output signal from the bait detection unit 702 (light receiving unit 7022), and based on the determination result, A determination signal indicating whether or not the fishing bait 705 is held is generated. In one embodiment, the signal processing unit 703 generates a determination signal indicating that the fishing bait 705 is held on the fishing hook 708 when the value of the electrical signal output from the bait detection unit 702 is greater than a predetermined threshold. To do. Thus, the signal processing unit 703 can detect whether the fishing bait 705 is held on the fishing hook 708 based on the value (voltage value) of the electrical signal output from the light receiving unit 7022. The signal processing unit 703 can generate a determination signal at an arbitrary timing. For example, the signal processing unit 703 can read an electrical signal from the light receiving unit 7022 at a predetermined cycle (for example, every 5 seconds) and generate a determination signal based on the electrical signal.

  The signal processing unit 703 modulates the carrier wave with the determination signal to generate a modulated wave, and transmits the modulated wave from the transmission unit 104 to the water. The modulation of the determination signal is performed using various analog modulations or digital modulations. When analog modulation is used, the determination signal is D / A converted before modulation. Various known modulation schemes can be used to modulate the determination signal. For example, amplitude modulation, frequency modulation, phase modulation, and various other modulation methods can be used. For example, when using frequency modulation, the carrier wave is modulated to the frequency f4 by the determination signal indicating that the fishing bait 705 is held on the fishing hook 708, and the fishing bait 705 is not held on the fishing hook 708 (dropped). The carrier wave is modulated to the frequency f4 by the determination signal indicating this. The frequencies f4 and f5 are different from each other. When the bait detection device 700 is used with the bait container 100, the frequencies f4 and f5 are set to frequencies different from any of the frequencies f1, f2, and f3.

  The transmission unit 704 is configured to transmit the determination signal modulated by the signal processing unit 703. Similar to the transmission unit 104 described above, the transmission unit 704 according to the embodiment is configured to transmit an ultrasonic wave modulated by the determination signal.

  The acoustic signal transmitted from the transmission unit 704 is received by the reception unit 121 of the information output device 120. Next, the demodulation unit 122 performs a demodulation process corresponding to the modulation process in the signal processing unit 703 on the reception signal output from the reception unit 121 to obtain a determination signal. Thereby, for example, when the signal of the frequency f4 is detected by the demodulator 122, it can be determined that the fishing bait 705 is held by the fishing hook 708, and when the signal of the frequency f5 is detected, the fishing hook It can be determined that the fishing bait 705 is not held at 708. The demodulation unit 122 outputs the determination signal obtained by the demodulation process to the output unit 123.

  Based on the demodulated determination signal from the demodulator 122, the output unit 123 is configured to transmit fishing bait detection information indicating whether or not the fishing bait is held on the fishhook to the angler. For example, the output unit 123 fishes information indicating that the fishing bait is held on the fishhook and / or information indicating that the fishing bait is not held on the fishhook (the fishing bait has been dropped from the fishhook). Configured to communicate to people. The monitor of the output unit 123 includes, for example, a display screen including a display indicating that the fishing bait is held on the fishing hook or a display indicating that the fishing bait has dropped from the fishing hook based on the determination signal demodulated by the demodulation unit 122 Is displayed on the monitor. The fishing bait detection information can be transmitted to the angler by any method other than the display on the monitor, such as a buzzer or a blinking diode.

When using the bait detection device 700 described above, first, the angler attaches the bait detection device 700 to the fishing line together with other devices and throws it into the water. In the bait detection device 700, a determination signal is generated at a predetermined cycle, and the determination signal is transmitted to the information output device 120. Based on the determination signal from the bait detection device 700, the information output device 120 performs a predetermined display or generates a predetermined acoustic signal by the output unit 123, thereby determining whether the fishing bait is held by the fishhook. You can notify the angler.

  As described above, according to the embodiment of the present invention, the angler can grasp whether or not the fishing bait is held on the fishing hook based on the determination signal from the bait detection device 700.

  In one embodiment of the present invention, the bait detection device 700 has a specific gravity equal to or substantially equal to the environment (fresh water or seawater of various concentrations) into which the bait detection device 700 is introduced. Composed. As an example, when the bait detection device 700 is put into fresh water, the specific gravity of the fresh water is about 1.0, so the specific gravity of the bait detection device 700 is about 1.0, for example, about 0.8 to about 0.8. 1.2, about 0.9 to about 1.1, about 0.95 to about 1.05, or about 0.995 to about 1.005. When the bait detection apparatus 700 is thrown into seawater, the specific gravity of the bait detection apparatus 700 is configured to be equal to or substantially equal to the specific gravity of the seawater. For example, when the bait detection device 700 is put into seawater having a specific gravity of 1.03, the specific gravity of the bait detection device 700 is about 1.03, for example, about 0.83 to about 1.23, about 0.93. To about 1.13, about 0.98 to about 1.08, or about 1.025 to about 1.035.

  The specific gravity of the bait detection device 700 can be adjusted by various methods. For example, the specific gravity of the bait detection device 700 can be adjusted by changing the material of the housing 701 or adjusting the amount of air trapped in the housing 701 to adjust the buoyancy obtained from the air. As described above, the bait detection device 700 includes the bait detection unit 702, the signal processing unit 703, the transmission unit 704, and the power source 706, and each of these components usually has a greater specific gravity than fresh water or seawater. It is thought that. Therefore, the casing 701 is made of a synthetic resin having a specific gravity smaller than that of fresh water or seawater, or a predetermined amount of air is confined in the casing 701, so that the specific gravity of the bait detection device 700 is freshwater or seawater that is the environment in which it is used. Can be substantially equal. In order to increase the specific gravity of the bait detection device 700, a weight may be attached to the housing 701, or the housing 701 may be formed of a material having a specific gravity greater than that of fresh water or seawater.

  Thus, when the specific gravity of the bait detection device 700 is made substantially equal to the water (fresh water or sea water) of the usage environment, when the fish pulls the fishhook 708, the fish feels unnatural resistance. You can avoid it.

  Next, a bait detection apparatus according to still another embodiment of the present invention will be described with reference to FIG. FIG. 11 is a diagram schematically illustrating a bait detection device 800 according to still another embodiment of the present invention. The bait detection device 800 is a modification of the bait detection device 700 shown in FIG. 10, and detects whether or not the fishing bait is held by the fishing hook using an optical sensor embedded in the fishing bait. Configured as follows.

  A bait detection device 800 shown in FIG. 11 includes an optical sensor 802 connected to a signal processing unit 703 via a signal line 803. Similar to the light receiving unit 7022 described above, the optical sensor 802 includes a photoelectric conversion element such as a photodiode. The optical sensor 802 can generate an amount of electric charge corresponding to the amount of received light, read an electric signal (for example, a voltage value) corresponding to the amount of generated electric charge, and output the electric signal to the signal processing unit 703. The optical sensor 802 is waterproofed.

The optical sensor 802 is surrounded by a fishing bait 705. For example, the optical sensor 802 is embedded in the fishing bait 705 so that the photoelectric conversion element is not exposed from the fishing bait 705. In one embodiment, the signal line 803 has a length comparable to that of the Harris 709 so that the optical sensor 802 and the fishhook 708 can be provided in close proximity. Fishing bait 705 can be attached to fishhook 708 so as to surround both 802 and fishhook 708. This embodiment is particularly suitable for an embodiment using a relatively large bait such as a paste bait as the fishing bait 705. Note that not only the optical sensor 802 but also part or all of the bait detection device 800 may be embedded in the fishing bait 705. In this case, the optical sensor 802 may be disposed inside the housing 701.

  As described above, since the optical sensor 802 is embedded in the fishing bait 705, when the fishing bait 705 is held by the fishing hook 708, ambient light does not enter the optical sensor 802, whereas the fishing bait When 705 falls off the fishhook 708, ambient light enters the optical sensor 802. Therefore, when the fishing bait 705 is dropped from the fishing hook 708, the amount of light received by the optical sensor 802 increases. Therefore, in the signal processing unit 703, the fishing hook 708 is connected to the fishing bait based on the electrical signal output from the optical sensor 802. Whether or not the fishing bait 705 is held on the fishhook 708 can be generated based on the determination result.

  The determination signal generated in the signal processing unit 703 is transmitted from the transmission unit 704 to the information output device 120. Based on the received determination signal, the information output device 120 can notify the angler of fishing bait detection information indicating whether or not the fishing bait is held on the fishing hook.

  Next, a bait detection apparatus according to still another embodiment of the present invention will be described with reference to FIG. FIG. 12 is a diagram schematically illustrating a bait detection device 900 according to still another embodiment of the present invention. The bait detection device 900 is a modification of the bait detection device 700 shown in FIG. 10, and detects whether the fishing bait is held by the fishhook by detecting the position of the probe 9022 by the position detection sensor. Configured.

  The bait detection device 900 shown in FIG. 12 includes a position detection sensor 9021, a probe 9022, and a spring 9024. The probe 9022 is a rod-shaped member made of, for example, a synthetic resin, and is pivotally supported by the housing 701 so as to be pivotable around a shaft 9025. The probe 9022 is constantly urged clockwise by the spring 9024 in FIG. Since the tip of the probe 9022 is attached to the fishing bait 705 held by the fishing hook 708, when the fishing bait 705 is held by the fishing hook 708, the tip of the probe 9022 resists the biasing force of the spring 9024. It can stay in the vicinity of 708. The position of the probe 9022 when the tip of the probe 9022 is near the fishhook 708 may be referred to as a “first position”. That is, the probe 9022 is held at the first position when the fishing bait 705 is held by the fishing hook 708. On the other hand, when the fishing bait 705 is dropped from the fishing hook 708, the tip of the probe 9022 is rotated clockwise by the biasing force of the spring 9024. The position of the probe 9022 may be referred to as a second position. That is, the probe 9022 is held at the second position when the fishing bait 705 is dropped from the fishing hook 708.

  The position detection sensor 9021 is a sensor that can detect whether the probe 9022 is in the first position or the second position. For example, as the position detection sensor 9021, a rotation sensor that detects the rotation amount of the probe 9022 and outputs an electrical signal corresponding to the detected rotation amount to the signal processing unit 703 can be used. As the position detection sensor 9021, any known rotation sensor can be used. For example, the position detection sensor 9021 includes a magnetic detection sensor that detects the amount of rotation of the probe 9022 using a Hall element, an electrical resistance sensor that detects a change in electrical resistance with the probe 9022, and a probe 2022. It may be a capacitance type sensor that detects a change in capacitance, an optical sensor, a high-frequency oscillation type proximity sensor, or various other known position detection sensors.

The signal processing unit 703 determines whether the probe 9022 is in the first position or the second position based on the electrical signal output from the position detection sensor 9021, and based on the determination result, the fishing hook 708. A determination signal indicating whether or not the fishing bait 705 is held can be generated. The determination signal generated in the signal processing unit 703 is transmitted from the transmission unit 704 to the information output device 120. Based on the received determination signal, the information output device 120 can notify the angler of fishing bait detection information indicating whether or not the fishing bait is held on the fishing hook.

  Next, a bait detection device according to still another embodiment of the present invention will be described with reference to FIG. FIG. 13 is a diagram schematically illustrating a bait detection device 1000 according to still another embodiment of the present invention. The bait detection device 1000 is a modification of the bait detection device 700 shown in FIG. 10, and is configured to detect whether or not the fishing bait is held on the fishing hook by a concentration sensor.

  A bait detection device 1000 shown in FIG. 13 includes a concentration sensor 1002 connected to a signal processing unit 703 via a signal line 1003. The concentration sensor 1002 is surrounded by the fishing bait 705 so as not to be exposed from the fishing bait 705. As the density sensor 1000, the same sensor as the density sensor 402 can be used. The concentration sensor 1002 is, for example, a salt concentration meter that measures the concentration of salt. When the bait detection device 1000 is used in fresh water and the bait 705 contains salt, when there is a difference in salinity between the environment in which the bait detection device 1000 is used and the bait 705, the salinity concentration by the concentration sensor 1002 is used. Whether or not the fishing hook 708 holds the fishing bait 705 can be detected based on the measurement result. That is, when the fishing bait 705 is held by the fishhook 708 and surrounds the concentration sensor 1002, a high salinity concentration is detected, whereas when the fishing bait 705 falls off the fishhook 708, a low salinity concentration is detected. Is done. The density sensor 1002 can output an electrical signal corresponding to the detected density to the signal processing unit 703.

  The signal processing unit 703 determines whether the fishing bait 705 is held by the fishhook 708 based on the electrical signal output from the concentration sensor 1002, and the fishing bait 705 is attached to the fishing hook 708 based on the determination result. A determination signal indicating whether or not it is held can be generated. The determination signal generated in the signal processing unit 703 is transmitted from the transmission unit 704 to the information output device 120. Based on the received determination signal, the information output device 120 can notify the angler of fishing bait detection information indicating whether or not the fishing bait is held on the fishing hook.

  Next, a bait detection device according to still another embodiment of the present invention will be described with reference to FIG. FIG. 14 is a diagram schematically illustrating a bait detection device 1100 according to still another embodiment of the present invention. The bait detection device 1100 is a modification of the bait detection device 700 shown in FIG. 10, and detects whether or not the fishing bait is held by the fishing hook based on the time until the reflected ultrasonic wave returns. Configured to do.

  A bait detection apparatus 1100 shown in FIG. 14 includes an underwater microphone 10021 that emits ultrasonic waves for detection, and a hydrophone 10022 that receives reflected waves of the ultrasonic waves. The arrangement and orientation of the underwater microphone 4021 are adjusted so that, for example, ultrasonic waves can be emitted toward the fishing hook 708. When the hydrophone 10022 receives the reflected wave, the hydrophone 10022 can output an electrical signal to the signal processing unit 703.

Based on the electrical signal output from the hydrophone 10022, the signal processing unit 703 can measure the time from when the detection ultrasonic wave is generated from the underwater microphone 10021 until the reflected wave is received. When the fishing bait 705 is held on the fishhook 708, the time from receiving the detection ultrasonic wave to receiving the reflected wave is short. On the other hand, if the fishing bait 705 falls off the fishhook 708, Since there is no object that reflects the ultrasonic wave in the vicinity of the fishing hook 708, the time from when the ultrasonic wave for detection is generated until the reflected wave is received becomes longer. Therefore, the signal processing unit 703 determines whether or not the fishing bait 705 is held by the fishhook 708 by comparing the time from the generation of the detection ultrasonic wave to the reception of the reflected wave with a predetermined threshold value. Can be determined. Based on the determination result, a determination signal indicating whether or not the fishing bait 705 is held on the fishing hook 708 can be generated. The determination signal generated in the signal processing unit 703 is transmitted from the transmission unit 704 to the information output device 120. Based on the received determination signal, the information output device 120 can notify the angler of fishing bait detection information indicating whether or not the fishing bait is held on the fishing hook.

  The embodiment of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, the material, shape, dimensions, form, number, arrangement, etc., of each member in the above-described embodiment can be changed as appropriate. For example, a specific method for detecting the remaining amount of bait in the bait container is not limited to that specified in this specification. As a specific method for detecting the remaining amount of bait, an optimum detection method can be used according to the type of bait used.

100, 200, 300, 400, 500, 600 Bait container 101 Main body 103, 703 Signal processing unit 104, 704 Transmitter 105 Bait 120 Information output device 121 Receiver 122 Demodulator 123 Output unit 1021, 7022 Light receiving unit 1022, 7021 Throw Optical unit 2021, 9021 Position detection sensor 2022, 9022 Probe 2023 Permanent magnet 2324, 9024 Spring 3021 Pressure detection sensor 3022 Spring 3023 Piston 402, 1002 Concentration sensor 4021, 10021 Underwater microphone 4022, 10028 Hydrophone 700, 800, 900, 1000, 1100 Bait Detection Device 701 Housing 705 Fishing Bait 902 Optical Sensor

Claims (16)

A main body configured to accommodate bait in its interior;
A remaining amount detection unit for detecting the remaining amount of bait contained in the main body,
A transmission unit that transmits a remaining amount signal indicating the remaining amount of bait detected by the remaining amount detection unit;
A bait container comprising:   The bait container according to claim 1, wherein the transmission unit transmits a sound wave modulated by the remaining amount signal.   The bait container according to claim 1, wherein the remaining amount detection unit includes a photoelectric conversion unit that detects an amount of light corresponding to the remaining amount of bait accommodated in the main body.   The said remaining amount detection part has a probe which changes according to the remaining amount of the bait accommodated in the said main body, and a displacement detection part which detects the displacement of the said probe, or characterized by the above-mentioned. The bait container according to claim 2.   The bait according to claim 1 or 2, wherein the remaining amount detection unit is configured to detect a load that changes in accordance with a remaining amount of bait stored in the main body. container.   The bait container according to claim 1, wherein the remaining amount detecting unit detects a concentration of a substance that changes in accordance with a remaining amount of bait in the main body.   The said remaining amount detection part is provided with the transmission unit which emits an ultrasonic wave toward the inside of the said main body, and the receiving unit which receives the reflected wave which returned, The Claim 1 or Claim 2 characterized by the above-mentioned. The described bait container. A receiving unit that receives the remaining amount signal transmitted from the bait container according to any one of claims 1 to 7,
Based on the remaining amount signal, an output unit that outputs information indicating the remaining amount of food contained in the body of the food container;
An information output device comprising: A detection unit for detecting whether bait is held on the fishing hook;
In accordance with the detection result of the detection unit, a transmission unit that transmits a determination signal indicating whether or not bait is held on the fishing hook;
A bait detection device comprising:   The bait detection device according to claim 8, wherein the transmission unit transmits a sound wave modulated by the determination signal.   The bait detection device according to claim 9 or 10, wherein the detection unit includes a light projecting unit that emits detection light and a light receiving unit that receives reflected light returned from the direction of the fishing hook. .   The said detection part is provided with the optical sensor enclosed by the bait attached to the said fishhook, The bait detection apparatus of Claim 9 or Claim 10 characterized by the above-mentioned. The detection unit is in a first position when bait is held on the fishhook, while a probe is located in a second position when the bait is not held on the fishhook, and the position of the probe. It has a position sensor to detect, The bait detection apparatus of Claim 9 or Claim 10 characterized by the above-mentioned.   The said detection part is provided with the density | concentration sensor surrounded by the bait attached to the said fishhook, The bait detection apparatus of Claim 9 or Claim 10 characterized by the above-mentioned. (specific gravity)
The bait detecting device according to any one of claims 9 to 14, wherein the specific gravity is substantially equal to water. A receiving unit that receives the determination signal transmitted from the bait detection device according to any one of claims 9 to 15,
Based on the determination signal, an output unit that outputs information indicating whether bait is held on the fishing hook;
An information output device comprising:

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