JP6514870B2 - A bait container capable of detecting the amount of bait bait and a bait detector capable of detecting whether or not a fishing hook holds bait - Google Patents

Description

  The present disclosure relates to a bait container for containing a bait for fishing, and more particularly to a bait container capable of detecting the remaining amount of bait contained in the bait container. Also, the disclosure herein relates to a detection device capable of detecting whether or not a fishing hook holds bait.

  A typical bait container is configured to contain bait (also referred to as "kneading") therein and to release the bait into water. Since the hooks are attached to the hooked bait container via the harness, the bait released from the hooked bait container can attract fish around the hooks.

  Since the bait container releases the bait in water, the fisherman on the water can not visually recognize the remaining amount of the bait remaining in the bain container. When the bait container is empty, the fish can not be attracted to the surroundings of the hook, which adversely affects fishing results. On the other hand, in order to keep the bait container empty, the bait container may be pulled out from the water at a timing when the bait container is sufficiently left in the bait container to replenish the bait bait. However, even in this case, time is spent for pulling up the bait container, replenishing the bait, and re-introducing the bait container to a predetermined depth, which adversely affects the fish. In addition, it is not possible to see from the angler on water whether the hook holds the bait, so the hook is left in a state where the hook is not baited, or the hook for confirmation even though the hook is baited. May be pulled up.

  Therefore, a bait container that can notify an angler that the internal bait has been emptied is being considered. For example, Japanese Patent Application Laid-Open No. 2002-345382 (Patent Document 1) discloses a bait container capable of releasing a predetermined amount of bait bait for each operation (looping) by an angler. According to the bait container described in Patent Document 1, since a predetermined amount of bait bait is released in a single operation, it is supposed that the fisherman can know the remaining amount of the bait bait by the number of times the user takes part. Further, Japanese Patent Laid-Open No. 2006-333754 (Patent Document 2) discloses a bait container having a reciprocating member configured to push the bait inside the container into the water from the opening provided in the container. There is. The reciprocating member is adjusted in its moving speed so as to release all the bait 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 has become empty when the predetermined time has elapsed. With regard to a fishing hook, as described in Japanese Patent Application Laid-Open No. 2002-360123 (Patent Document 3), a fishing hook devised so that bait is less likely to fall off has been proposed.

JP 2002-345382 A JP, 2006-333754, A Japanese Patent Laid-Open No. 2002-360123

  However, since the amount of bait released from the bait container varies according to the amount of bait contained and the water flow around the bait container, in the above-described conventional bait container, the timing when the bait container becomes empty Can not be accurately detected. For example, in the bait container described in Patent Document 1 described above, the amount of bait released per unit time may vary depending on the surrounding environment, so the bait container may become empty after a number of times less than estimated. On the contrary, the bait container may not be empty in the estimated number of times. Further, in the bait container described in Patent Document 2, even if the displacement speed of the reciprocating member is adjusted so that all bait is released in a predetermined time, the bait is released by the action of the reciprocating member. There is a risk that the bait container will become empty due to the influence of water flow.

  As described above, in the conventional bait bait container, only the amount of basting bait remaining in the bait bait container is estimated based on the number of times of squashing and the displacement speed of the reciprocating member, not the residual bait bait amount. And other factors make it impossible to accurately grasp the timing at which the bait contained in the bait container is empty.

  In addition, even if a device for dropping the bait from the hook is devised, the dropping of the bait from the hook can not be completely prevented. On the other hand, there is no known device or method for detecting whether or not a fishing hook holds bait.

  Therefore, the disclosure of the present specification aims to provide a bait container capable of detecting the remaining amount of bait bait. Another object of the present invention is to provide a detection device capable of detecting whether or not bait is held by a hook. Other purposes than these will become apparent throughout the present specification.

  A bait container according to one embodiment of the present invention includes a main body configured to be capable of containing bait therein, a remaining amount detecting unit for detecting a remaining amount of bait contained in the main body, and the remaining amount detection. And a transmitter configured to transmit a remaining amount signal indicating a remaining amount of bait detected by the unit.

  According to the said embodiment, the quantity of the bait which remains in the bait container can be grasped | ascertained based on the residual amount signal which detects the residual amount of bait. When the bait 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 when the bait bait is emptied based on the remaining amount signal.

  In one embodiment of the present invention, the transmission unit is configured to convert the residual signal into a sound wave and oscillate. In addition, 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 this embodiment, since the residual signal is transmitted by the sound wave that is less likely to be attenuated in water compared to the electromagnetic wave, even when the bait container is in the water, the residual signal is more efficient than when using the electromagnetic wave as a carrier. It can be transmitted.

  In addition, the attenuation factor of electromagnetic waves in water has a characteristic of being significantly lower in the visible light band than in other bands. Therefore, by wirelessly transmitting the remaining amount signal using an electromagnetic wave in the visible light band, the remaining amount signal can be efficiently transmitted even when the bait container is in water. In addition, since the electromagnetic wave has a higher transmission speed than the sound wave, the residual 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 displaces according to the remaining 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 the further another embodiment of this invention is comprised so that the load which changes according to the remaining amount of the bait accommodated in the main body may be detected. The remaining amount detecting unit according to still another embodiment of the present invention is a concentration of a substance that changes according to the remaining amount of bait in the main body, for example, a salt concentration, a pH (a value related to a concentration of hydrogen ions. And sugar concentration is configured to be measured.

  In a bait residual quantity output device according to an embodiment of the present invention, a receiving unit for receiving a residual quantity signal transmitted from a bait bait container configured as described above; And an output unit for outputting information indicating the remaining amount of bait contained in the main body.

  According to the said embodiment, the angler can grasp the residual amount of the bait in the said bait container by the information which shows the residual amount of the bait output from the output part, The timing when the bait container became empty The bait container can be pulled out of the water for replenishment of the bait.

  In the bait detection device according to one embodiment of the present invention, a detection unit that detects whether or not a bait is held by a fishing hook, and whether or not a bait is held by the fishing hook according to a detection result of the detection unit. And a transmitter configured to transmit a determination signal indicating

  According to the said embodiment, it can be grasped | ascertained whether the bait is hold | maintained at the fishhook based on the determination signal which shows whether the bait is hold | maintained at the fishhook.

  The detection unit of the present invention can detect whether or not the bait is held by the hook by various methods. For example, the 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 fishing hook. Moreover, the residual amount detection part which concerns on other embodiment of this invention is equipped with the optical sensor enclosed by the bait attached to the said fishhook. The remaining amount detection unit according to another embodiment of the present invention is a second position when the bait is held by the hook and the bait is at the first position and the bait is not held by the hook. 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 fishing hook.

  In the information output device according to one embodiment of the present invention, bait is held by the fishing hook based on the reception signal that receives the determination signal transmitted from the bait detection device configured as described above, and the determination signal. And an output unit that outputs information indicating whether or not to

  According to the embodiment, the angler can grasp whether or not the bait is held by the hook by the information indicating whether or not the bait is held by the hook outputted from the output unit. The hook can be pulled out of the water to re-supply the bait at a time when the bait has been lost.

  As described above, various embodiments of the present invention can provide a bait container capable of detecting the remaining amount of bait bait. In addition, various embodiments of the present invention can provide a detection device that can detect whether or not bait is held by the hook.

The figure which shows roughly the bait residual amount detection system which concerns on one Embodiment of this invention. Figure schematically showing a bait container according to an embodiment of the present invention Graph for explaining the relationship between the light reception amount of the light receiving sensor provided in the bait container according to one embodiment of the present invention and the remaining amount of bait in the bait container A schematic diagram showing a relationship between an elapsed time from putting a bait container according to an embodiment of the present invention into water and an acoustic signal obtained by frequency-modulating a residual signal. Figure schematically showing a bait container according to another embodiment of the present invention Figure schematically showing a bait container according to another embodiment of the present invention Figure schematically showing a bait container according to another embodiment of the present invention Figure schematically showing a bait container according to another embodiment of the present invention Figure schematically showing a bait container according to another embodiment of the present invention FIG. 1 schematically shows a bait detecting device according to an embodiment of the present 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, an overview of a bait residual amount detection system according to an embodiment of the present invention will be described. As shown, the bait bait residual quantity detection system according to one embodiment of the present invention is based on the bait bait container 100 transmitting a residual signal indicating the residual bait bait and the residual signal from the bait bait container 100. And an information output device (120) for outputting information indicating the remaining amount of bait contained in the body of the bait container. The information output device 120 is installed, for example, on a boat on which an angler is aboard. An information output apparatus 120 according to an embodiment of the present invention includes a receiver 121, a demodulator 122, and an output unit 123. Details of the information output device 120 will be described later.

  Next, with reference to FIG. 2, a bait container 100 according to an embodiment of the present invention will be described. The bait container 100 shown in FIG. 2 includes a main body 101, a lid 111 covering the upper side of the main body 101, and a base portion 112 covering the lower side of the main body 101. Attached to the lid 111 is one end of a line 107 extending from the fishing rod R. A Harris is attached to the lower end of the base portion 112, and a hook 108 is attached to the tip of the Harris.

  The main body 101 is formed, for example, in a hollow cylindrical shape, and the bait 105 is accommodated in the hollow internal space. The bait 105 is any feed having a fish collecting effect, and, for example, krill, minced fish, roasted mackerel, and spiny powder (carcass of powdered silkworm) are used. The main body 101 is made of, for example, a synthetic resin, and has one or more communication holes communicating the inside with the outside so that the bait can be released into water. The position, size, and number of the communication holes are not limited, and various sizes and numbers of communication holes may be used at various positions depending on the type of the bait 105, the type of fish to be fished, 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 emitting unit 1022 and a light receiving unit 1021, a signal processing unit 103, a transmitting unit 104, and a power supply 106. The remaining amount detection unit 102 includes a light emitting 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 bait 105 in the bait container 100. The signal processing unit 103 generates a remaining amount signal indicating the remaining amount of the bait 105 detected by the remaining amount detection unit 102 as described later, and the transmitting unit 104 transmits the remaining amount signal to the information output device 120. Send. The power supply 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, environmental temperature difference, vibration, an energy harvesting battery that converts light energy into electric power, or any other battery. The remaining amount detection unit 102, the signal processing unit 103, the transmission unit 104, and the power supply 106 are subjected to an appropriate waterproofing process so as not to cause a leak.

  The light receiving unit 1021 is provided on the base portion 112 so as to face the light emitting unit 1022, and configured to receive light emitted from the light emitting 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 floodlighting unit 1022 is configured to emit light in a band that is highly permeable in water and is likely to be blocked (facilitated) by the bait 105. The light emitted from the light projection unit 1022 may be, for example, visible light, infrared light, or light of a frequency band near the visible light band other than these.

  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 charge corresponding to the amount of light received, read out an electric signal (for example, a voltage value) corresponding to the amount of generated charge, and output it as an output signal. In order to allow the light receiving unit 1021 to receive light of a sufficient light quantity, the light projecting unit 1022 may be provided with a condensing lens. Moreover, in order to prevent environmental light from the periphery of the bait container 100 from entering the light receiving unit 1021 and noise being generated, a light shielding member which does not transmit light is attached to the main body 101 or a synthetic resin which does not transmit light. The main body 101 may be formed.

  As described above, the light receiving unit 1021 is provided to face the light emitting unit 1022, and the light receiving unit 1021 is configured to receive the light transmitted from the light emitting unit 1022 through the internal space of the main body 101. When there is a large amount of bait 105 remaining in the internal space, light from the light emitting unit 1022 is blocked by the bait 105, and the voltage output from the light receiving unit 1021 decreases. When the bait 105 is released into the water and the amount of bait 105 remaining in the bait container 100 decreases, the amount of light incident on the light receiving unit 1021 increases, and the voltage output from the light receiving unit 1021 increases. The relationship between the remaining amount of bait 105 in the bait container 100 and the light amount of incident light to the light receiving unit 1021 (that is, the output of the remaining detection unit 102) is expressed as, for example, a graph shown in FIG. The graph of FIG. 3 shows that the amount of light incident on the light receiving unit 1021 monotonously decreases relative 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 an embodiment of the present invention, the light projection unit 1022 can be omitted. In this case, the light receiving unit 1021 outputs an electrical signal according to the light amount of ambient light incident through the main body 101. Thus, even if the light emitting 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 bait in the bait 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 with a predetermined threshold every predetermined time, and the bait container 100 according to the comparison result. The remaining amount of bait 105 inside is determined. In one embodiment, as shown in FIG. 3, the signal processing unit 103 sets the remaining amount of bait 105 to “high”, “medium”, “low” according to the output signal from the remaining amount detection unit 102. The determination can be made in three stages, and a residual amount signal representing the determination result can be generated. 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 the amount is smaller, the remaining amount is determined to be "large", and if smaller than the threshold T1 and smaller than the threshold T2, the remaining amount is determined to be "medium"; if larger than the threshold T2, the remaining amount is "small" judge. The remaining amount of the bait 105 may be determined in any number of stages, for example, in any of two stages, five stages, or ten stages.

  Further, the signal processing unit 103 modulates the carrier wave with the residual signal to generate a modulation wave, and transmits the modulation wave from the transmission unit 104 underwater. Modulation of the residual signal may be performed using various analog or digital modulations. When analog modulation is used, the residual signal is D / A converted before modulation. Various known modulation schemes can be used to modulate the residual signal. For example, amplitude modulation, frequency modulation, phase modulation, and various other modulation schemes can be used.

  Various carriers, for example, various bands of sound waves or electromagnetic waves can be used to carry the residual signal. In one embodiment, ultrasound is used as a carrier. In another embodiment, electromagnetic waves in the visible light band are used as carrier waves. Since the sound wave has a smaller attenuation factor in water as compared with the electromagnetic wave, the residual signal can be efficiently transmitted to the information output device 120 by using the sound wave as a carrier wave. In addition, visible light has been found to have a significantly lower attenuation rate in water as compared to electromagnetic waves in other bands (see, for example, "The Foundations and Applications of Marine Acoustics", edited by The Japan Institute of Marine Acoustics), Seizando Bookstore. Therefore, the residual amount signal can be efficiently transmitted to the information output device 120 by using the electromagnetic wave in the visible light region.

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

  The transmission unit 104 is configured to transmit the residual 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 residual amount signal from the signal processing unit 103, and generates this acoustic signal. It can be sent underwater. When an electromagnetic wave is used as a carrier wave, the transmitting unit 104 includes a power amplifier and an antenna, amplifies the residual signal from the signal processing unit 103 by the power amplifier, and radiates the amplified modulated signal from the antenna. Configured

  The signal transmitted from the transmitting unit 104 is received by the receiving unit 121 of the information output device 120. In the case of receiving (receiving) the residual signal modulated into ultrasonic waves, a hydrophone that converts the received ultrasonic waves into electric signals can be used as the receiving unit 121. When the remaining amount signal is transmitted by wireless communication using an electromagnetic wave, the receiving unit 121 outputs the received wave received by the antenna to the demodulating unit 122. In addition, in the case of receiving a residual signal modulated to 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, performs demodulation processing according to the modulation processing in the signal processing unit 103, and obtains a residual amount signal. For example, when the signal of the frequency f1 is detected by the demodulation unit 122, it is determined that the remaining amount of the bait 105 is large, and when the signal of the frequency f2 is obtained, it is determined 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 corresponding to the determination result of the remaining amount of the bait 105 (that is, the decoded remaining amount signal) to the output unit 123.

  The output unit 123 is configured to transmit the amount of bait 105 remaining in the bait container 100 to the angler based on the demodulated residual signal from the demodulator 122. The output unit 123 according to an 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 residual signal demodulated by the demodulator 122. For example, when the remaining 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, “many remaining bait: many”) Is displayed on the monitor. The output unit 123 may indicate not only the latest remaining amount but also the elapsed time of the remaining amount in the form of a graph.

  In addition, the output unit 123 according to another embodiment of the present invention can transmit the remaining amount of the bait 105 to the angler by the color of the warning light and the light emission pattern. This warning light comprises, for example, an LED. In this case, the output unit 123 includes, for example, three LEDs that emit blue, white, and red, respectively, and the blue LED when the remaining amount is large, the white LED when the medium level is small, and the small remaining amount In this case, it is possible to notify the angler of the remaining amount of the bait 105 by emitting a red LED. In addition, it is possible to notify the angler of the remaining amount of the bait 105 by making the flashing cycle of the LED correspond to the remaining amount of the bait 105.

  In addition, the output unit 123 according to another embodiment of the present invention can transmit the remaining amount of the bait 105 to the angler by the number of transmissions per unit time of the sound signal (for example, a buzzer) or the volume. In this case, the output unit 123 is configured to, for example, increase the number of transmissions per unit time of the buzzer or increase the volume of the buzzer as the remaining amount increases.

  When using the bait residual amount detection system described above, first, the bait container 100 is filled with a predetermined amount of bait 105. The fisherman attaches the bait container 100 to the fishing line and throws it into the water along with other devices. When the bait container 100 is put into water, the bait 105 inside is gradually released into the water. The bait container 100 detects the remaining amount of the remaining bait 105 remaining therein, modulates the carrier wave with the remaining signal indicating the detected remaining amount of bait, and transmits the modulated carrier wave. The information output device 120 receives the transmission signal of the bait container 100, and demodulates and decodes the received signal to obtain a residual signal. Then, based on the remaining amount signal, the remaining amount of the bait 105 remaining in the bait container 100 is notified to the angler by a liquid crystal monitor, a buzzer or the like.

  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 pulling up the bait container 100. Further, the angler can know that the remaining amount of the bait 105 is low by the output (screen display or sound signal) from the output unit 123, so it is not necessary to pull up the bait container 100 at an incorrect timing. As described above, in the conventional bait bait container, since the remaining amount of bait bait is only estimated based on the number of times of scooping etc., the bait bait container is in spite of the fact that a sufficient amount of bait bait remains In some cases, 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. This is expected to improve fishing results because it is possible to avoid falsely recognizing that the remaining amount of bait is low and pulling up the device, or falsely recognizing that enough bait is left and leaving the empty bait container empty. Ru. In particular, in the case of fishing where it takes time to collect the tackle (for example, when the bait container 100 is thrown into a deep shelf or when the tackle is thrown away), the improvement effect of the fishing fruit by not performing extra pulling up Can be greatly expected. In addition, by appropriately adjusting the transmission period (how often it is transmitted per unit time) of the remaining signal from the bait container 100 to the information output device 120, the angler can reduce the remaining amount of bait without delay. Can understand what happened.

  Next, a bait container according to another embodiment of the present invention will be described with reference to FIG. FIG. 5 is a schematic view of a bait container 200 according to another embodiment of the present invention. The bait container 200 differs from the bait container 100 in a specific method of 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 on the main body 101 or the lid 111 about an axis 2025. A permanent magnet 2023 is attached to the tip of the probe 2022. The permanent magnet 2023 rotates around an axis 2025 together with the probe 2022.

  The position detection sensor 2021 is provided, for example, on the track of the permanent magnet 2023 of the base 112. 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 electrical 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 electrical resistance type sensor that detects a change in electrical resistance with the probe 2022, a capacitance type sensor that detects a change in electrostatic capacitance with the probe 2022, an optical sensor, It may be a high frequency oscillation type proximity sensor or any other known position detection sensor.

  The permanent magnet 2023 is always urged in the direction of the position detection sensor 2021 by a spring 2024. The force applied from the spring 2024 to the probe 2022 is adjusted to a force such that the bait 105 is not 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 separates from the position detection sensor 2021 by rotating clockwise.

  According to the bait container 200, when a sufficient amount of bait bait 105 remains in the bait container 200, the pressure in the clockwise direction around the shaft 2025 acting on the probe 2022 from the bait 105 is a counter clockwise of the spring 2024. The probe 2022 is located at the end of the clockwise direction (left end in FIG. 5) to overcome the turning biasing force. As the bait 105 is released and the remaining amount in the bait container 200 decreases, the counterclockwise biasing force of the spring becomes dominant, and the probe 2022 gradually moves in the counterclockwise direction and the position detection sensor 2021 Get close. 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 indicating the remaining amount. The residual amount signal generated in this manner is transmitted from the transmitting 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 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 schematic view of a bait container 300 according to still another embodiment of the present invention. The bait container 300 differs from the bait container 100 in a specific method of 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-like mesh made of synthetic resin. The disk-like 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 to such a roughness that the bait 105 can not pass through. A spring 3022 is attached near the center of the lower surface of the piston 3023, and is always urged upward by the spring 3022. Further, 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 up and down depending on 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 and between the piston 3023 and the inner circumferential 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 according 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 its surface can be used. The pressure detection sensor 3021 includes, for example, a strain gauge, and can output an electrical signal according 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 pressure applied from the bait 105 to the piston 3023 causes the piston 3023 to be near the lower end of its movable range. 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 from the bait 105 by the spring 3022 decreases, and as a result, the pressure applied to the pressure detection sensor 3021 also decreases. As described above, 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. A remaining signal representing the detected remaining amount is generated. The remaining amount signal generated by 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 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 schematic view of a bait container 400 according to still another embodiment of the present invention. The bait container 400 differs from the bait container 100 in a specific method of 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 in 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 salinometer that measures the concentration of salt in the internal space of the main body 101. When the use environment of the bait container 400 and the bait 105 have a difference in concentration of salinity as in the case where the bait container 400 is used as fresh water and the bait 105 contains salt, the inside of the main body 101 by the concentration sensor 402 The amount of bait 105 in the main body 101 can be detected based on the measurement result of the salt concentration in the space. That is, it can be determined that the remaining amount of the bait 105 is large when the salt concentration in the main body 101 is high, and the remaining amount of the bait 105 is small when the salt concentration is low. Thus, based on the output signal from the concentration sensor 402, the signal processing unit 103 detects the remaining amount of bait 105, and a remaining amount signal indicating the detected remaining amount is generated. The remaining amount signal generated by 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 signal.

  The concentration to be measured by the concentration sensor 402 is not limited to the concentration of salt, and the concentration of the various substances in the internal space of the main body 101 and the usage environment of the bait container 400 (water to which the bait container 400 is charged) varies. The concentration can be measured. For example, a pH meter or a sugar scale 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 schematic view of 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 projection unit 1022 is different from that of the bait container 100. That is, in the bait container 500 shown in FIG. 8, the light emitting 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 emitting 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 bait 105 remaining in the internal space of the main body 101 is large, Much of the light from the light emitting 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 bait 105 remaining in the bait container 100 decreases, the amount of light incident on 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 representing the detected remaining amount. The remaining amount signal generated by 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 signal.

  Next, a bait container according to still another embodiment of the present invention will be described with reference to FIG. FIG. 9 is a schematic view of a bait container 600 according to still another embodiment of the present invention. The bait container 600 includes an underwater microphone 4021 that emits an ultrasonic wave for detection, and a hydrophone 4022 that receives a reflected wave of the ultrasonic wave. The position and direction 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 electrical signal to the signal processing unit 103 when receiving the reflected wave.

  The signal processing unit 103 can measure the required time from the emission of the ultrasonic wave for detection from the underwater microphone 4021 to the reception of the reflected wave based on the electric signal output from the hydrophone 4022. When the amount of bait 105 remaining in the internal space of the main body 101 is large, the time from the generation of the ultrasonic wave for detection to the reception of the reflected wave is short, while the bait 105 is released into the water and bait When the amount of bait 105 remaining in the container 100 decreases, the time from the generation of the ultrasonic wave for detection to the reception of the reflected wave becomes longer. Therefore, the signal processing unit 103 compares the time from the generation of the detection ultrasonic wave to the reception of the reflected wave with the predetermined threshold value, whereby the remaining amount of the fishing bait 105 remaining inside the main body 101 Can be detected.

  Thus, based on the output signal from the hydrophone 4022, the signal processing unit 103 detects the remaining amount of bait 105, and a remaining amount signal representing the detected remaining amount is generated. The remaining amount signal generated by 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 signal.

  Next, with reference to FIG. 10, a bait detecting device according to an embodiment of the present invention will be described. The bait detection device 700 shown in FIG. 10 includes, for example, a casing 701 formed in a hollow box shape, a bait detection unit 702, a signal processing unit 703, a transmission unit 704, and a power supply 706. The bait detection unit 702, the signal processing unit 703, the transmission unit 704, and the power supply 706 are accommodated in a housing 701. The housing 701 is waterproofed to prevent leakage of the members contained in the housing 701. The bait detection unit 702 includes a light emitting 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 formed of a synthetic resin such as polyethylene. One end of a line 707 extending from the fishing rod R is attached to an upper portion of the housing 701. Also, 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 hook 708. The fishing bait 705 is any fishing bait such as live fish such as krill, sea bream, sea bream, shellfish, sardines, fish such as horse mackerel, or bait.

  In one embodiment of the present invention, the bait detection device 700 is configured to be able to transmit information from the water to the information output device 120, instead of the bait container 100 shown in FIG. Be done. When the bait detection device 700 is used together with the bait container 100, the bait detection device 700 is provided, for example, between the bait container 100 and the hook 108.

  In one embodiment, the light emitting unit 7021 and the light receiving unit 7022 are housed 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 emitting unit 7021 and the reflected light toward the light receiving unit 7022. The light projection 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 projection unit 7021 are adjusted such that the detection light is irradiated at least around the hook 708. The light projecting unit 7021 is configured to emit, for example, light of a wavelength having a fish collecting effect. The light emitted from the light projecting unit 7021 may be, for example, visible light, infrared light, or light of a frequency band near another visible light band. The light receiving unit 7022 is configured substantially the same as the light receiving unit 1021. That is, the light receiving unit 7022 generates a charge corresponding to the amount of light received, reads an electric signal (for example, a voltage value) corresponding to the amount of the generated charge, and outputs the read electric signal to the signal processing unit 703. Can be output to

  Thus, the detection light from the light emitting unit 7021 is irradiated around the fishing hook 708, and the light receiving unit 7022 receives the reflected light of the detection light, and an electrical signal corresponding to the light 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, so that the light receiving unit is more than when the fishing bait 705 falls off the fishing hook 708 The amount of reflected light incident on the 7022 is large.

  The signal processing unit 703 determines whether the fishing bait 705 is held by the fishing hook 708 based on the output signal from the bait detection unit 702 (the light receiving unit 7022), and based on the determination result, the fishing hook 708 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 by the fishing hook 708 when the value of the electrical signal output from the bait detection unit 702 is larger than a predetermined threshold. Do. Thus, the signal processing unit 703 can detect whether the fishing bait 705 is held by the fishing hook 708 based on the value (voltage value) of the electric 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 underwater. The modulation of the decision signal may be performed using various analog 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 decision signal. For example, amplitude modulation, frequency modulation, phase modulation, and various other modulation schemes can be used. For example, when frequency modulation is used, the carrier wave is modulated to the frequency f4 by the determination signal indicating that the fishing bait 705 is held by the fishing hook 708, and the fishing bait 705 is not held by the fishing hook 708 (dropped) The carrier wave is modulated to the frequency f4 by the determination signal indicating that. The frequencies f4 and f5 are different from each other. Further, when the bait detection device 700 is used together 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. The transmitting unit 704 in one embodiment is configured to be able to transmit the ultrasonic wave modulated by the determination signal, as in the transmitting unit 104 described above.

  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 demodulation processing according to the modulation processing 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 demodulation unit 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 at 708 that the fishing bait 705 is not held. The demodulation unit 122 outputs the determination signal obtained by the demodulation process to the output unit 123.

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

  In the case of 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 bait detection device 700, a determination signal is generated at a predetermined cycle, and the determination signal is transmitted to information output device 120. Based on the determination signal from the bait detection device 700, the information output device 120 causes the output unit 123 to perform a predetermined display or generate a predetermined acoustic signal, thereby holding a fishing bait or not. 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 by the hook based on the determination signal from the bait detection device 700.

  In one embodiment of the present invention, the bait detection device 700 is such that its specific gravity is equal to or substantially equal to the environment (fresh water or seawater of various concentrations) into which the bait detection device 700 is injected. Configured As an example, when the bait detector 700 is introduced into freshwater, the specific gravity of the bait detector 700 is about 1.0, for example, about 0.8 to about 0.8, since the specific gravity of the freshwater is about 1.0. 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 device 700 is introduced into seawater, the specific gravity of the bait detection device 700 is configured to be equal to or substantially equal to the specific gravity of the seawater. For example, when the bait detector 700 is introduced into seawater having a specific gravity of 1.03, the specific gravity of the bait detector 700 is about 1.03, for example, about 0.83 to about 1.23, about 0.93. -Configured to be 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 in various ways. 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 confined 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 supply 706, and each of these components usually has a specific gravity larger than that of fresh water or seawater. It is thought that Therefore, by forming the casing 701 from a synthetic resin having a specific gravity smaller than that of fresh water or seawater, or by confining a predetermined amount of air in the casing 701, the specific gravity of the bait detection device 700 can be used as the fresh water or seawater that is its use environment. And 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 larger than that of fresh water or seawater.

  In this way, by making the specific gravity of the bait detection device 700 substantially equal to the water (fresh water or seawater) of the usage environment, when the fish pulls on the hook 708, the fish feels unnatural resistance in the fish You can try not to

  Next, with reference to FIG. 11, a bait detecting device according to still another embodiment of the present invention will be described. FIG. 11 is a view schematically showing 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 a fishing bait is held by a fishing hook using an optical sensor embedded inside the fishing bait. Configured as.

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

  The light sensor 802 is surrounded by a fishing bait 705. For example, the light 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, by making the signal line 803 have a length similar to that of the Harris 709, it is possible to provide the light sensor 802 and the hook 708 in a close position, so this close light sensor A fishing bait 705 can be attached to the hook 708 so as to surround both 802 and the hook 708. This embodiment is particularly suitable for the embodiment using a relatively large bait such as a bait as the fishing bait 705. Not only the light 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 light sensor 802 may be disposed inside the housing 701.

  As described above, since the light sensor 802 is embedded in the inside of the fishing bait 705, environmental light does not enter the light sensor 802 when the fishing bait 705 is held by the fishing hook 708, while the fishing bait When the 705 falls off the hook 708, ambient light enters the light sensor 802. Therefore, when the fishing bait 705 falls off from the fishing hook 708, the amount of light received by the light sensor 802 increases. Therefore, in the signal processing unit 703, the fishing hook 708 is a bait based on the electrical signal output from the light sensor 802. It is possible to determine whether or not the 705 is held, and based on the determination result, it is possible to generate a determination signal indicating whether or not the fishing bait 705 is held by the fishing hook 708.

  The determination signal generated by the signal processing unit 703 is transmitted from the transmission unit 704 to the information output device 120. The information output device 120 can notify the fishing person of fishing bait detection information indicating whether the fishing bait is held on the fishing hook, based on the received determination signal.

  Next, with reference to FIG. 12, a bait detecting device according to still another embodiment of the present invention will be described. FIG. 12 is a schematic view of 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 fishing hook 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-like member made of, for example, a synthetic resin, and is pivotally supported by a housing 701 around an axis 9025. The probe 9022 is always urged clockwise in FIG. 12 by a spring 9024. The tip of the probe 9022 is attached to the fishing bait 705 held by the hook 708. Therefore, when the fishing bait 705 is held by the hook 708, the tip of the probe 9022 resists the biasing force of the spring 9024 and the hook It can stay in the vicinity of 708. The position of the probe 9022 when the tip of the probe 9022 is near the fishing hook 708 may be referred to as a “first position”. That is, when the fishing bait 705 is held by the fishing hook 708, the probe 9022 is held at the first position. On the other hand, when the fishing bait 705 falls off 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 falls off the fishing hook 708.

  The position detection sensor 9021 is a sensor that can detect whether the probe 9022 is at a first position or a second position. For example, as the position detection sensor 9021, a rotation sensor that detects the amount of rotation of the probe 9022 and outputs an electrical signal corresponding to the detected amount of rotation 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 is a magnetic detection type sensor that detects the amount of rotation of the probe 9022 using a Hall element, an electric resistance type sensor that detects a change in electrical resistance between the probe 9022, and the probe 2022 The sensor 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 at the first position or the second position based on the electrical signal output from the position detection sensor 9021, and the fishing hook 708 based on the determination result. A determination signal may be generated to indicate whether or not the fishing bait 705 is held. The determination signal generated by the signal processing unit 703 is transmitted from the transmission unit 704 to the information output device 120. The information output device 120 can notify the fishing person of fishing bait detection information indicating whether the fishing bait is held on the fishing hook, based on the received determination signal.

  Next, with reference to FIG. 13, a bait detecting device according to still another embodiment of the present invention will be described. FIG. 13 is a view schematically showing 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 a fishing bait is held by a fishing hook by means of a concentration sensor.

  The bait detection device 1000 shown in FIG. 13 includes the concentration sensor 1002 connected to the signal processing unit 703 via the 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 concentration sensor 1000, the same one as the concentration sensor 402 can be used. The concentration sensor 1002 is, for example, a salinometer that measures the concentration of salinity. When the bait detection device 1000 is used in fresh water and the environment where the bait detection device 1000 is used and the bait 705 have a difference in salinity, such as when the bait 705 contains salt, the salinity concentration by the concentration sensor 1002 It is possible to detect whether or not the fishing hook 708 holds the fishing bait 705 based on the measurement result of. That is, when the bait 705 is held by the hook 708 and surrounds the concentration sensor 1002, a high salt concentration is detected, while when the bait 705 falls off the hook 708, a low salt concentration is detected. Be done. The concentration sensor 1002 can output an electrical signal corresponding to the detected concentration to the signal processing unit 703.

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

  Next, with reference to FIG. 14, a bait detecting device according to still another embodiment of the present invention will be described. FIG. 14 is a schematic view of 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 wave of the ultrasonic wave returns. Configured to

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

  The signal processing unit 703 can measure the time from the emission of the ultrasonic wave for detection from the underwater microphone 10021 to the reception of the reflected wave based on the electrical signal output from the hydrophone 10022. When the fishing bait 705 is held by the fishing hook 708, the time from the generation of the ultrasonic wave for detection to the reception of the reflected wave is short, while when the fishing bait 705 falls off the fishing hook 708 Since there is no object that reflects the ultrasonic wave near the fishing hook 708, the time from the generation of the ultrasonic wave for detection to the reception of the reflected wave becomes long. Therefore, the signal processing unit 703 compares the time from the generation of the detection ultrasonic wave to the reception of the reflected wave with a predetermined threshold value to determine whether the fishing bait 705 is held by the fishing hook 708 or not. It can be determined. Based on the determination result, it is possible to generate a determination signal indicating whether or not the fishing bait 705 is held by the fishing hook 708. The determination signal generated by the signal processing unit 703 is transmitted from the transmission unit 704 to the information output device 120. The information output device 120 can notify the fishing person of fishing bait detection information indicating whether the fishing bait is held on the fishing hook, based on the received determination signal.

  The embodiments of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention. For example, the material, shape, size, shape, number, arrangement, and the like of each member in the embodiment described above may be appropriately changed. For example, the specific method of detecting the remaining amount of bait in the bait container is not limited to the one explicitly disclosed herein. As a specific method of detecting the remaining amount of bait bait, an optimal detecting method can be used according to the type of bait bait to be used.

100, 200, 300, 400, 500, 600 feeding container 101 body 103, 703 signal processing unit 104, 704 transmitting unit 105 feeding unit 120 information output device 121 receiving unit 122 demodulation unit 123 output unit 1021, 7022 light receiving unit 1022, 7021 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, 10022 Hydrophone 700, 800, 900, 1000, 1000 1100 bait detection device 701 housing 705 fishing bait 902 light sensor

Claims (14)

A main body configured to be able to accommodate bait inside thereof;
A remaining amount detection unit that detects the remaining amount of bait contained in the main body;
A transmitter configured to transmit, from the water, a remaining amount signal indicating the remaining amount of bait detected by the remaining amount detector;
And the transmitting unit transmits the sound wave modulated by the remaining amount signal.   2. The bait container according to claim 1, wherein the remaining amount detection unit includes a photoelectric conversion unit that detects an amount of light according to the remaining amount of bait contained in the main body.   The said remaining amount detection part has a probe which displaces according to the remaining amount of the bait accommodated in the said main body, The displacement detection part which detects the displacement of the said probe, It is characterized by the above-mentioned. The described bait container.   2. The bait container according to claim 1, wherein the remaining amount detection unit is configured to detect a load that changes according to the remaining amount of bait contained in the main body.   2. The bait container according to claim 1, wherein the remaining amount detecting unit detects a concentration of a substance which changes in accordance with the remaining amount of bait in the main body.   The bait container according to claim 1, wherein the remaining amount detection unit includes a transmission unit that emits an ultrasonic wave toward the inside of the main body, and a reception unit that receives a reflected wave that has returned. . A receiving unit for receiving the remaining amount signal transmitted from the bait container according to any one of claims 1 to 6.
An output unit that outputs information indicating the remaining amount of bait contained in the main body of the bait container, based on the residual signal;
An information output device comprising: A detection unit that detects whether or not bait is held by the hook;
A transmitter configured to transmit a determination signal indicating whether or not bait is held by the hook according to the detection result of the detector;
A bait detecting device, comprising: a transmitting unit configured to transmit a sound wave modulated by the determination signal.   The bait detection device according to claim 8, wherein the detection unit includes a light projection unit that emits detection light, and a light reception unit that receives the reflected light returned from the direction of the fishing hook.   The bait detection device according to claim 8, wherein the detection unit includes an optical sensor surrounded by bait attached to the hook.   The detection unit is at a first position when the bait is held by the hook, and the probe at a second position when the bait is not held by the hook, and the position of the probe The bait detection device according to claim 8, further comprising: a position sensor for detecting.   9. The bait detection device according to claim 8, wherein the detection unit comprises a concentration sensor surrounded by bait attached to the hook.   The bait detection device according to any one of claims 8 to 12, wherein the specific gravity is substantially equal to that of water. A receiving unit that receives the determination signal transmitted from the bait detection device according to any one of claims 8 to 13.
An output unit that outputs information indicating whether or not bait is held by the hook based on the determination signal obtained by demodulating and decoding the received determination signal;
An information output device comprising:

Images