JP2023069492A - Rotation detector, rotation detection system, and squid fishing system - Google Patents

Abstract

To provide a technology for detecting gut entanglement in the sea in squid fishing operation using a squid fishing machine as early as possible to enable early restoration.SOLUTION: A rotation detector 10 for detecting rotation r of a driven-side rotary body R that rotates according to rotation q of a driving-side rotary body Q comprises: a base body 2 with a specification for attachment to a rotation shaft X of the driven-side rotary body R; a pair of acceleration sensors 3A, 3B provided on the base body 2; and a signal processing unit 4 for transmitting information with respect to the rotation r of the driven-side rotary body R acquired by the acceleration sensors 3A, 3B to the outside using a radio system.SELECTED DRAWING: Figure 1

Description

The present invention relates to a rotation detection device, a rotation detection system, and a squid fishing system. Rotation detection that is highly useful in the industrial field can exhibit excellent effects, for example, as a method for early detection of troubles involving lines in pole-and-line squid fishing. It relates to devices and the like.

FIG. 13 is an explanatory diagram showing a situation in which a problem such as entanglement in a line occurs in a pole-and-line fishing method using a squid fishing machine. As shown in the figure, the pole-and-line fishing method using the squid fishing machine SC is performed by simultaneously operating a plurality of squid fishing machines SC, SC, . Each squid fishing machine SC rotates the drum DM, and the line BD attached with the squid hook ND (device, hereinafter simply referred to as "squid hook") is drawn out into the sea and descends, and is caught on the squid hook ND. The squid is hoisted onto board by hoisting the squid BD with the drum DM. The above-mentioned troubles are caused by changes in the tide in the sea and by other creatures such as sharks entangling the squid hook ND during fishing, and the squid hook ND becomes entangled with the squid hook ND operating in another squid fishing machine SC. , is a trouble that makes it impossible to operate normally. In addition, there is also a trouble that the wire BD is broken and the weight (weight) WT comes off.

FIG. 14 is an explanatory diagram showing a conventional method for finding entanglement in extremities. Moreover, FIG. 15 is a photograph view showing an example of the front roller shown in FIG. As shown in these figures, conventional detection of entanglement in the line is performed by providing a hook HK for detecting the entanglement of the line BD in the vicinity of the front roller MR. That is, when the line entanglement occurs, the line BD and the squid needle ND are wound up by the drum DM in that state, and when they reach the position of the front roller MR, they are caught by the hook HK attached to the peripheral device of the front roller MR, and the hook HK is caught. When activated, an emergency stop switch (emergency stop means) ES on the back of the squid fishing machine connected thereto is actuated to automatically stop the squid fishing machine SC. After stopping, check for entanglement in the extremity, restore it, and take necessary safety measures. Note that FIG. 16 is an explanatory diagram showing a conventional emergency stop operating mechanism, and a comparison with FIG. 12 according to the present invention will be described later.

Conventionally, many patent applications have been filed with respect to the technology related to the squid fishing machine. For example, in Patent Literature 1 listed below, a squid caught on a squid hook is prevented from falling off the squid hook and falling into the sea when passing through guide rollers, thereby increasing fishing efficiency. When a fishing line having a large number of squid hooks connected thereto is guided into the ship by a hoisting machine through a guide roller, hook rods are protruded substantially vertically on the peripheral surface of the body of the guide roller to hook the squid hooked on the squid hooks. A technique is disclosed in which a guide roller is transported and guided while being stabbed with a rod to prevent it from falling into the sea.

Further, Patent Document 2 discloses a fishing gear hoisting device that is attached to the hull and that can reduce the influence of the swinging motion caused by both the pitching phenomenon and the rolling phenomenon of the hull on the hoisting action of the fishing gear. a rotating drum, driving means for driving the rotating drum, and detection for detecting the vertical rocking speed based on the pitching phenomenon of the hull and the rocking angular velocity around the axis extending in the longitudinal direction of the hull based on the rolling phenomenon of the hull. A configuration comprising means and control means for controlling the drive means in response to a signal from the detection means is disclosed.

Japanese Unexamined Patent Publication No. 2000-245318 "Fishing Line Guide Roller for Squid Fishing Machine" Japanese Unexamined Patent Publication No. 2013-34397 "Hoisting device for fishing"

In order to clarify the problems of the prior art described above with reference to FIG. 13 and the like, further explanation is added.
FIG. 17 is an explanatory diagram showing a normal operating situation using a squid fishing machine. In the prior art, it is possible to know the entanglement of the already generated squid needles ND until the entangled squid BD is hoisted up to the position of the hook HK shown in FIG. However, when the detection mechanism by the hook HK is activated, it is often the case that they are already entangled in a complicated manner. In that case, it will take a considerable amount of time to recover from the BD. A system capable of detecting entanglement in the sea at an early stage and stopping the squid fishing machine SC is desired. In the figure, A, B, C, D, E, and F are drums DM, and Nos. 1, 2, and 3 are squid fishing machines SC. The same applies to FIG. 18 to be described later.

In addition, if the weight (weight) WT suspended at the tip of the squid needle ND comes off during operation due to deterioration of the line BD or breakage of the line due to overload, etc., the squid fishing machine SC will continue to operate as it is. When the DM is wound up, the squid needles ND fly out, and there is a possibility of harming people, such as getting caught in them. However, the conventional technology cannot sense this danger and stop the squid fishing machine SC. A more secure method is required.

As shown in FIG. 17, the squid fishing machine SC is operated by repeatedly lowering and raising the drum DM. Depending on the situation, the squid needle ND wound up by the rise of the drum DM may get caught on the line BD in the same drum DM, and when the drum DM is lowered again, the squid needle ND may be wound up without descending. This is called reverse winding (reverse winding phenomenon). If the operation is continued with the reverse winding occurring, the squid needle ND comes off the front roller MR and becomes entangled and accumulates there. If this happens, recovery will take a considerable amount of time. If such a situation occurs, the current device cannot detect it and stop the squid fishing machine SC.

FIG. 18 is an explanatory view showing the operating situation using a squid fishing machine and attaching a line to only one side of the drum. As shown in the figure, when the type of squid hook ND is changed, the squid fishing machine SC may be operated with the squid hook ND only attached to one side of the drum DM. In this case also, the above-described problems may occur, but the current device cannot sense this and stop the squid fishing machine SC. There is a demand for more practical safety technology.

Therefore, the problem to be solved by the present invention is to eliminate the problems of the conventional technology, discover and detect entanglement in the sea in the squid fishing operation using a squid fishing machine as early as possible, and enable early recovery. technology. Another object of the present invention is to provide a technique capable of effectively preventing the reverse winding phenomenon in which the squid needle does not descend and rolls up when the drum descends. In addition, there is a danger that squid needles will fly out due to such troubles involving lines, but solving the problem of the present invention will be an effective measure to prevent such dangers.

Furthermore, the object of the present invention is not limited to the early trouble detection technology when using a squid fishing machine, but it is useful to directly detect the rotation of the driven side rotating body that rotates due to the rotation of such a driving side rotating body. The object of the present invention is to provide a rotation detection device and a rotation detection system capable of directly detecting the rotation of a driven rotating body in the industrial field of .

The inventors of the present application have studied the above problems. As a result, we focused on the fact that there was always an anomaly in the rotation of the front roller when the extremity got entangled in the sea. In other words, the occurrence of entanglement in sea snails can be detected early by immediately sensing and detecting any abnormal rotation of the front roller during operation of the squid fishing machine. In fact, if the crew of the squid fishing boat can detect the abnormal rotation of the front roller before detection by the hook method described above, the operation of the squid fishing machine is immediately stopped, and the drum is manually wound up to catch the entangled squid. Sometimes the needle can be easily recovered. The sooner it is discovered, the shorter the recovery time.

However, when the crew is doing other work such as packing boxes, or when trouble occurs with one of the multiple squid fishing machines that are not monitored, it is not possible to respond quickly, and the crew members cannot monitor the front rollers. It has its limits and cannot be relied upon. Certain new detection schemes need to be devised. The inventor paid his attention to the phenomenon of the rotational change of the front roller. On the other hand, conventional methods for detecting rotation include methods using optical sensors and magnetic sensors, but seawater and squid ink are commonly present, making the operating environment too harsh, and no suitable methods have been found. .

The inventor attaches a rotation detection device having two acceleration sensors to the shaft of the front roller, sends information on the rotation status of the two front rollers to a receiving unit installed inside the squid fishing machine by a wireless method, and performs squid fishing. The inventors have come up with a configuration for monitoring the operating conditions of the machine, that is, the relationship between the rotation of the drive-side rotor and the two front rollers, that is, the rotation of the driven-side rotor, and emergency stopping the squid fishing machine in the event of an abnormality. As a result, the inventors have found that each of the above problems, which is not limited to the field of squid fishing, can be solved, and have completed the present invention based on this finding. That is, the inventions claimed in the present application, or at least the inventions disclosed as means for solving the above problems, are as follows.

[1] A rotation detection device for detecting the rotation of a driven-side rotating body that rotates due to the rotation of a driving-side rotating body, comprising: a base provided with specifications for attachment to the driven-side rotating body; 1. A rotation detecting device comprising a pair of acceleration sensors and a signal processing section for transmitting information related to rotation of a driven rotating body obtained by the acceleration sensors to the outside by a wireless method.
[2] The rotation detection device according to [1], which is attached to each of a plurality of driven-side rotating bodies and used for monitoring the rotation state between the driven-side rotating bodies.
[3] The rotation detection device according to any one of [1] and [2], which is for detecting rotation of a front roller that constitutes a squid fishing machine.
[4] The rotation detecting device according to any one of [1], [2], and [3], wherein the substrate has a major axis/minor axis ratio exceeding one.
[5] [1], [2], [3], [1], [2], [3], [ 4] The rotation detecting device according to any one of the above items.
[6] The signal processing section is characterized by comprising an arithmetic processing section that performs predetermined arithmetic processing on the detection signal obtained by the acceleration sensor to generate the detected rotational speed information and rotation direction information. , [5].

[7] In [5], the signal processing unit transmits a detection signal obtained by the acceleration sensor to the outside, and the detected rotational speed information and rotation direction information are generated outside the device. A rotation detection device as described.
[8] Any one of [1], [2], [3], [4], [5], and [6] attached to each of one or more driven-side rotating bodies rotated by rotation of the drive-side rotating body and a receiving device for receiving information transmitted from the signal processing unit of the rotation detecting device. A rotation detection system characterized by being used for monitoring the rotation state of a rotating body.
[9] A rotation detecting device according to [7] attached to each of one or more driven rotating bodies; The receiving device includes a receiving-side arithmetic processing unit that generates detected rotation speed information and rotation direction information based on the received detection signal, and the rotation between each driven side rotating body or each driven rotation based on the detection rotation speed information and rotation direction information. A rotation detection system characterized by being used for monitoring the rotation state of a rotating body.
[10] [8] and [9], characterized by comprising a setting command device for transmitting communication connection settings and other setting information in the receiving device to the receiving device by a wireless method. A rotation detection system according to any of the preceding claims.
[11] It is characterized by comprising an emergency stop means for emergency stopping the rotation of the drive-side rotating body in a predetermined state based on the monitoring of the rotation state between the driven-side rotating bodies or each driven-side rotating body. The rotation detection system according to any one of [8], [9], and [10].
[12] The rotation according to any one of [8], [9], [10], and [11], further comprising drive-side operation detection means for detecting operation of the drive-side rotor. detection system.

[13] The rotation detection system according to [12], wherein the drive-side rotor is driven by a motor, and the drive-side operation detection means is a current sensor that detects a current associated with driving the motor. .
[14] The rotation detection system according to any one of [12] and [13], wherein information detected by the driving side operation detection means is transmitted to the receiving device.
[15] An emergency stop means for emergency stopping the rotation of the drive side rotor in a predetermined state based on monitoring of the rotation state between the driven side rotors or each driven rotor; The rotation detection system according to any one of [12], [13] and [14], characterized in that the emergency stop means is not activated when the operation detection means does not detect.
[16] [8], [9], [10], [11], [12], [13], and [14] for detecting rotation of a front roller constituting a squid fishing machine , [15].
[17] The rotation detection system according to any one of [8], [9], [10], [11], [12], [13], [14], [15], and [16] A squid fishing system characterized by:
[18] The squid fishing system according to [1], wherein the information received by the receiving device is used for motor drive control.

Since the rotation detection device, the rotation detection system, and the squid fishing system of the present invention are configured as described above, according to these, troubles such as entanglement of extremities in the sea in squid fishing operations using a squid fishing machine can be prevented. It can be discovered and detected as early as possible, and the problem of the rope can be solved and restored as early as possible, and the operation can be resumed as soon as possible. In addition, it is possible to effectively prevent the reverse winding phenomenon in which the squid needles do not descend when the drum descends and rolls up. In addition, there is a danger that squid needles will fly out due to problems such as entanglement in the line, but the present invention can effectively prevent such danger. Furthermore, if the extremities descend to a deeper depth near the seabed and entanglement of the extremities occurs, this can be detected early and countermeasures can be taken. That is, according to the present invention, it is possible to detect the tangling of the squid at an early stage, so that the time and labor required for restoring the squid hook can be reduced, and the crew can operate safely.

Further, according to the rotation detection device, the rotation detection system, and the squid fishing system of the present invention, based on the detected number of rotations of the driven side rotor, the drive side rotor-driven side rotor coupling mechanism as a whole is detected. It is also possible to obtain information on the state of motion in the body and the state of motion in the environment in which the body is placed, and to use it for controlling the state of motion of the body. For example, in a squid fishing system, when the squid fishing machine is descending and the center of gravity is lowered due to rolling pitching of the boat, the rotation speed of the front roller slows down. Based on this, it is possible to know the rolling amplitude of the wave during operation. By sharing this information, it becomes possible to control the operating speed according to waves and swells.

Furthermore, according to the rotation detection device and the rotation detection system of the present invention, the rotation of the driven side rotating body that rotates due to the rotation of the driving side rotating body is detected without being limited to the early trouble detection technology when using a squid fishing machine. , can be detected directly. Therefore, the present invention can be used to obtain such effects in all devices and systems where it is useful to directly detect the rotation of the driven rotating body, and in industrial fields related to them.

1 is a conceptual explanatory diagram showing the basic configuration of a rotation detection device of the present invention; FIG. FIG. 3 is a conceptual explanatory diagram showing a case where the rotation detection device of the present invention is used for a plurality of driven rotating bodies; FIG. 2 is a conceptual explanatory diagram showing a case where the rotation detection device of the present invention is used in parallel with a plurality of driven rotating bodies; 1 is an explanatory diagram showing a configuration example of a rotation detection device of the present invention; FIG. 4 is a graph schematically showing a rotation detection pattern in an angle sensor of the rotation detection device shown in FIG. 3; 1 is a conceptual explanatory diagram showing the basic configuration of the rotation detection system of the present invention; FIG. FIG. 4 is a conceptual explanatory diagram showing another configuration of the rotation detection system of the present invention; 1 is a conceptual explanatory diagram showing the configuration of the rotation detection system of the present invention provided with a setting command device; FIG. 1 is a conceptual explanatory view showing an example of use in a squid fishing machine as a configuration example of the rotation detection system of the present invention provided with emergency stop means for a drive-side rotor; FIG. 9 is a block diagram of the rotation detection system of the present invention illustrated in FIG. 8; FIG. FIG. 5 is an explanatory diagram showing the steps taken when using the rotation detection system of the invention in the case of single drum operation; 1 is a conceptual explanatory diagram showing the configuration of the rotation detection system of the present invention provided with drive-side operation detection means; FIG. FIG. 2 is a conceptual explanatory diagram showing a configuration of the rotation detection system of the present invention provided with drive side operation detection means, which is used for a plurality of driven side rotating bodies in parallel. 1 is a conceptual explanatory diagram showing a configuration example of a squid fishing system of the present invention; FIG. FIG. 4 is an explanatory diagram showing a trouble occurrence situation in a squid fishing method near the bottom of the sea; (The figures below relate to the prior art.) FIG. 10 is an explanatory diagram showing a situation in which troubles such as entanglement in a line occur in a pole-and-line fishing method using a squid fishing machine. It is explanatory drawing which shows the conventional method of finding entanglement in extremities. FIG. 15 is a photograph showing an example of the front roller shown in FIG. 14; It is an explanatory view showing a conventional emergency stop operating mechanism. It is explanatory drawing which shows the normal operating condition using a squid fishing machine. FIG. 10 is an explanatory diagram showing an operating situation using a squid fishing machine and attaching a line to only one side of the drum.

The present invention will be described in detail below with reference to the drawings.
FIG. 1 is a conceptual explanatory diagram showing the basic configuration of the rotation detecting device of the present invention. In the figure, (a) shows a mode in which the present rotation detection device is used, and (b) shows the configuration of the present rotation detection device. As shown in these figures, the rotation detecting device 10 is a rotation detecting device 10 for detecting the rotation r of the driven side rotating body R rotated by the rotation q of the driving side rotating body Q. a pair of acceleration sensors 3A and 3B provided integrally with the base 2; The main configuration is to include a signal processing unit 4 for transmission by a wireless system such as Bluetooth (registered trademark) . The rotation detecting device 10 can be preferably attached to the rotating shaft of the driven rotating body R. As shown in FIG.

The rotation detecting device 10 of the present invention having such a configuration is used by being attached to the driven rotating body R by its base 2. Information about the rotation r of the driven rotating body R is obtained by the rotation, and the information about the rotation r is transmitted to the outside by the signal processing unit 4 by a wireless method. In this manner, the rotation r of the driven-side rotating body R rotated by the rotation q of the driving-side rotating body Q is detected outside the rotation detection device 10 . By using two acceleration sensors (3A, 3B), it becomes possible to detect the number of revolutions and distinguish between forward and reverse rotation, which will be described later with reference to FIGS.

FIG. 2 is a conceptual explanatory diagram showing a case where the rotation detection device of the present invention is used for a plurality of driven rotating bodies. In the drawing, there are two driven-side rotating bodies, but the number is not limited to this, and may be three or more. As shown in the figure, the rotation detection device 10 is attached to each of a plurality of driven rotors R1, R2, . can be done.

That is, the rotation detection device 10 of the present invention is attached to a plurality of driven rotors R1, R2, . Information relating to the rotation r1 of R1, information relating to the rotation r2 of the driven rotating body R2, and so on are obtained. The information related to the rotation r1, the information related to the rotation r2, . By using two acceleration sensors (3A, 3B), it becomes possible to detect the number of rotations of each driven-side rotating member R1, R2, .

In this way, the rotation r1 of the driven-side rotating body R1, the rotation r2 of the driven-side rotating body R2, . . Rotations r1, r2, . . . are generated in the driven rotors R1, R2, . By obtaining such information externally, it is possible to know whether the rotational states of the driven rotating bodies R1, R2, . . . are different or not. In other words, it can be used to monitor the rotation state between the driven rotating bodies R1 and R2, and is useful for detecting the rotation of the front roller that constitutes the squid fishing machine.

That is, as shown in FIGS. 14 and 15, when the squid fishing machine is operated and driven, the two front rollers, which are the driven rotating bodies, rotate in conjunction with each other. By attaching , it is possible to detect each rotation and monitor the rotation difference and rotation direction. In the normal operating state where no entanglement of the extremity occurs, the two front rollers rotate normally. At this time, the rotation difference between both front rollers is small and the rotation direction is the same in the forward direction. Therefore, if there is a certain degree of rotation difference between the two rollers or if the rotation directions are different, it is determined that there is an abnormality in the rotation state between the two front rollers, that is, the occurrence of tangling of the lines.

The rotation of each front roller detected by a pair of acceleration sensors 3A and 3B provided for each rotation detection device 10 is transmitted to the outside by a signal processing unit 4 by a wireless method such as Bluetooth, and is received outside. . Based on the rotation detected by the acceleration sensor 3A, etc., information such as the number of rotations, the direction of rotation, etc. is finally obtained, the presence or absence of an abnormality is determined, and the subsequent measures, that is, the automatic emergency stop of the squid fishing machine. Action will be taken.
FIG. 2-2 is a conceptual explanatory diagram showing a case where the rotation detecting device of the present invention is used in parallel with a plurality of driven rotating bodies. Such uses are also within the scope of the present invention.

FIG. 3 is an explanatory diagram showing a configuration example of the rotation detecting device of the present invention. again,
4A and 4B are graphs schematically showing rotation detection patterns in the angle sensor of the rotation detection device shown in FIG. As shown in FIG. 3, the rotation detecting device 110 can be configured such that the major axis/minor axis ratio of the base 12 exceeds one. In the configuration example shown in the figure, it is of a long elliptical type, in which acceleration sensors 13A and 13B are provided in the vicinity of both poles, respectively. Also, an attachment hole 15 for attachment to the driven-side rotating body is provided in the center. It should be noted that, for example, in the case of attaching the front roller of a squid fishing machine, etc., the design of the specification according to the application can be freely designed, such as making it waterproof.

When the driven-side rotating body rotates in the forward rotation direction Fw shown in FIG. 3, the rotation detection device 110 attached thereto also rotates in the forward rotation direction Fw. ). In both graphs (a) and (b), the horizontal axis is time t and the vertical axis is acceleration (acceleration value k). As shown in (a), when the rotation detection device 110 and the driven rotating body are rotating in the forward rotation direction Fw, detection by the acceleration sensor 13A, detection by the acceleration sensor 13B, detection by the acceleration sensor 13A, . . changes over time.

On the other hand, when the rotation detecting device 110 and the driven rotating body are rotating in the reverse direction Bw, changes over time occur such as detection by the acceleration sensor 13B, detection by the acceleration sensor 13A, detection by the acceleration sensor 13B, and so on. . The difference in the pattern of change over time makes it possible to distinguish between forward rotation and reverse rotation. Also, rotation can be detected based on the output of acceleration (acceleration value k). In this way, by using the device 110, it is possible to obtain rotational direction information by comparing detection signals and detection rotation information from the acceleration sensors 13A and 13B.

As shown in the basic configuration of FIG. 1 and the configuration example of FIG. can be provided with an arithmetic processing unit that performs arithmetic processing to generate the above-described detected rotational speed information and rotational direction information. In the rotation detection device 10 and the like having such a configuration, the detection signal obtained by the acceleration sensor 3A and the like is subjected to predetermined arithmetic processing by the arithmetic processing section in the signal processing section 4 and the like, and the detected rotation speed information and the rotation direction information are obtained. is generated and sent to the outside. That is, in this case, the signal processing unit 4 calculates the signals obtained from the acceleration sensor 3A and the like, converts them into information on the number of revolutions and forward/reverse rotation, and transmits the information to the outside by wireless communication means such as Bluetooth.

On the other hand, the signal processing unit 4, etc. of the rotation detecting device 10, etc., transmit the detection signal to the outside as it is, without subjecting the detection signal obtained from the acceleration sensor 3A, etc., to special arithmetic processing. The detected rotation speed information and rotation direction information may be configured to be generated outside the apparatus 10 or the like. In the rotation detection device 10 and the like having such a configuration, the signal processing section 4 and the like transmit the detection signal obtained by the acceleration sensor 3A and the like to the outside as it is, and the above-described detected rotation speed information and rotation direction information are transmitted to the apparatus. 10 or the like, it is generated by subjecting it to predetermined arithmetic processing.

FIG. 5 is a conceptual explanatory diagram showing the basic configuration of the rotation detection system of the present invention. As illustrated, the rotation detection system 300 includes rotation detection devices 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, and 10. and a receiving device 20 for receiving information transmitted from the signal processing units 4, 4, . . . of the rotation detecting devices 10, 10, . The main configuration is that the system is used for information-based monitoring between driven rotating bodies or for monitoring the rotation state of each driven rotating body. It should be noted that the number of the driven-side rotating body and the rotation detecting device attached thereto according to the configuration of the rotation detecting system of the present invention is one, but the present invention mainly assumes a plurality of cases. Therefore, they are described as plural in the following.

According to the rotation detection system 300 having such a configuration, in a mechanism in which a plurality of driven-side rotating bodies to which the rotation detection device 10 is attached are connected to a driving-side rotating body, rotation of the driving-side rotating body causes these plurality of When the driven-side rotating body rotates, information on each rotation detected by the angle sensors 3A, 3A, etc. of the rotation detecting devices 10, 10, . is transmitted from the signal processing units 4, 4, . As a result, detected rotation speed information and rotation direction information are finally obtained, and the rotation detection system 300 can be used to monitor the rotation state between the driven rotors or the driven rotors.

In the rotation detection system 300 shown in the figure, the signal processing units 4, 4, . . . of the rotation detection devices 10, 10, . The configuration may include an arithmetic processing unit that performs predetermined arithmetic processing on the signal to generate detected rotation speed information and rotation direction information. In the system 300 having such a configuration, the detection signal obtained by the acceleration sensor 3A or the like is subjected to predetermined arithmetic processing in the arithmetic processing section in the signal processing section 4 or the like, and the detected rotational speed information and the rotational direction information are obtained. generated and transmitted to the receiving device 20 . On the other hand, as will be described later with reference to FIG. 6, the rotation detection system of the present invention is not limited to such configuration and effects.

The receiving device 20 receives the rotation of each driven rotating body detected and transmitted by each of the rotation detecting devices 10, 10, . . . A portion (component) that performs the function of determining whether the rotation state of the driven side rotor is normal or abnormal, and in addition to this, executes drive control of the drive side rotor based on the determination result of the rotation state. It is also possible to adopt a configuration including parts (components).

For example, when the present system 300 is used to detect the rotation state of the front roller of a squid fishing machine, the reception device 20 receives the rotation of each front roller detected and transmitted by each rotation detection device 10, 10, . , Not only the reception function, but also the part that performs the function of comparing the received rotation information of each front roller and determining whether the rotation state is normal or abnormal. It can be configured to include a part for executing emergency stop drive control of the fishing machine. By stopping the squid fishing machine early, it is possible to shorten the recovery time of the squid hook and take safety measures for the crew.

An appropriate wireless system such as Bluetooth (registered trademark) can be used as the wireless system used between the signal processing unit 4 of each rotation detection device 10 and the corresponding receiving device 20 . It should be noted that when a plurality of driven-side rotating bodies are wirelessly connected to a common/single driving-side rotating body, specific usage and specifications such as applying multi-pairing can be appropriately designed.

FIG. 6 is a conceptual explanatory diagram showing another configuration of the rotation detection system of the present invention. As illustrated, the rotation detection system 2300 includes rotation detection devices 210, 210, and 210, 210, each having any one of the configurations described above, attached to each of one or a plurality of driven-side rotating bodies rotated by the rotation of the driving-side rotating body. and a receiving device 220 for receiving information transmitted from the signal processing units 24, 24, . . . of the rotation detecting devices 210, 210, . A receiving side arithmetic processing unit 226 is provided for generating detected rotation speed information and rotation direction information based on the received detection signal. It should be noted that the number of the driven-side rotating body and the rotation detecting device attached thereto according to the configuration of the rotation detecting system of the present invention is one, but the present invention mainly assumes a plurality of cases. Therefore, they are described as plural in the following.

According to the rotation detection system 2300 having such a configuration, in a mechanism in which a plurality of driven-side rotating bodies to which the rotation detection device 210 is attached are connected to the driving-side rotating body, rotation of the driving-side rotating body causes these plurality of When the driven side rotating body rotates, each rotation information (detection signal ) are transmitted wirelessly from the respective signal processing units 4, 4, . . .

When the receiving device 220 receives the detection signals transmitted from the signal processing units 24, 24, . Detected rotational speed information and rotational direction information are obtained in this manner, and the rotation detection system 2300 can be used to monitor the rotational state between the driven rotors or between the driven rotors.

FIG. 7 is a conceptual explanatory diagram showing the configuration of the rotation detection system of the present invention equipped with a setting command device. As shown, the rotation detection system 3300, in addition to any of the configurations described with reference to FIGS. It can be configured to include a setting command device 370 that transmits to. A smartphone or other communicable information terminal device can be suitably used as the setting command device.

In the rotation detection system 3300 having such a configuration, the setting command device 370 inputs various information for setting necessary for using the system 3300, including setting for communication connection of the receiving device 320, and wirelessly transmits the information. By transmitting to the receiving device 320, necessary settings such as change of parameter values can be performed.

FIG. 8 is a conceptual explanatory diagram showing an example of use in a squid fishing machine as a configuration example of the rotation detection system of the present invention provided with emergency stop means for the drive-side rotor. Although two front rollers, which are driven rotating bodies, are provided in the squid fishing machine, they are omitted in the figure and only one is shown. As illustrated, the rotation detection system 4300, in addition to any of the configurations already described, is used to monitor the rotation state between the driven rotating bodies (front rollers) MR, MR or between the driven rotating bodies (front rollers) MR. Based on this, it is possible to provide an emergency stop means ES for emergency stopping the rotation of the drive-side rotating body (the drum of the squid fishing machine SC) DM in the case of a predetermined state. Transmission from each of the rotation detection device 410 and the setting command device 470 is performed by wireless communication means WL such as Bluetooth (registered trademark).

In the rotation detection system 4300 having such a configuration, an emergency stop should be made based on the rotation state monitoring between the driven rotating bodies (front rollers) MR, or the rotation status monitoring of each driven rotating body (front roller) MR alone. In the case of a predetermined state, the emergency stop means ES emergency stops the rotation of the drive-side rotor (the drum of the squid fishing machine SC) DM. In other words, when the rotation state of the driven side rotating body (front roller) MR detected by the rotation detection device 410 is determined to be abnormal rotation, control is performed by the emergency stop means ES. When the present system 4300 is used for a squid fishing machine, a stop action is applied to the internal emergency stop circuit, and the operation of the squid fishing machine can be stopped. In this way, it is possible to detect entanglement in the extremity at an early stage, and it is possible to reduce the time required to restore the squid needles and promote safety measures for the crew due to malfunctions.

FIG. 9 is a block diagram of the inventive rotation detection system illustrated in FIG. Although the emergency stop means ES shown in FIG. 8 is positioned as one element constituting the rotation detection system 4300 of the present invention, the present invention is not limited thereto as shown in FIG. In other words, the emergency stop means ES is not a component of the rotation detection system 5300 of the present invention, but rather a driving force that can ultimately be generated by monitoring the rotation state of the driven-side rotating member of the rotation detection system 5300. It is also possible to grasp that it is an element for drive control in the side rotating body.

As described above with reference to the drawings, the rotation detection device 10 and the like and the rotation detection system 300 and the like of the present invention can be suitably used for detecting the rotation of the front roller MR constituting the squid fishing machine SC. A squid fishing system (not shown) including detection system 300 or the like is also within the scope of the present invention. In the squid fishing system of the present invention, information received by the receiving device 320 or the like can be used for motor drive control.

Hereinafter, the operation when the present invention is applied to a squid fishing machine will be described in detail (see FIG. 17). In the squid pole-and-line fishing operation driven by the squid fishing machine, the left and right front rollers rotate in the same direction as long as the various problems listed above as "problems to be solved by the invention" based on the conventional technology do not occur. Rotate by number.

However, if the squid hook on the left or right front roller is entangled with the squid hook on the adjacent squid fishing machine, the squid hook on the entangled side will be pulled, and the squid hook on the side on which it is hooked will be pulled. The rotation of the front roller will be in a different state from the rotation of the other front roller due to changes in the number of rotations or the like. A difference in the rotational state between the two front rollers is detected by the rotation detection device or rotation detection system of the present invention. As a result, the emergency stop of the squid fishing machine can be activated quickly.

Also, in the event that a problem occurs in which the rope breaks, the weight falls to the seabed due to the broken rope, and the load on the front roller on which the rope is applied disappears. As a result, the rotation speed differs from that of the other front roller. A difference in the rotational state between the two front rollers is detected by the rotation detection device or rotation detection system of the present invention. As a result, the emergency stop of the squid fishing machine can be activated quickly.

Further, when the reverse winding phenomenon occurs, the rotation directions of the left and right front rollers are reversed. A difference in the rotational state between the two front rollers is detected by the rotation detection device or rotation detection system of the present invention. As a result, the emergency stop of the squid fishing machine can be activated quickly.

FIG. 10 is an illustration showing the measures taken when using the rotation detection system of the present invention in the case of single drum operation. In the case of the single drum operation shown in FIG. 18, the front roller and the drum from which the squid needle is removed are connected by a connecting means CJ such as extremity or rubber as shown in FIG. 12, and the front roller is connected. The left and right front rollers are driven to rotate in the same manner. As a result, even if troubles such as entanglement of strings occur during single drum operation, the difference in the rotation state between both front rollers is detected by the rotation detection device or the rotation detection system of the present invention, thereby , can quickly activate the emergency stop of the squid fishing machine.

FIG. 11 is a conceptual explanatory diagram showing the configuration of the rotation detection system of the present invention provided with drive-side operation detection means. Note that the number of driven-side rotating bodies illustrated in this figure is not limited. As illustrated, the rotation detection system 6300 can be configured to include drive-side operation detection means 68 for detecting the operation of the drive-side rotor Q in addition to any of the configurations described with reference to the drawings. . The drive-side rotor Q can be configured to be driven by a motor. In this case, a current sensor that detects the current associated with driving the motor can be preferably used as the drive-side operation detection means 68 . The information detected by the drive-side operation detection means 68 may be transmitted to the receiving device 620 .
(Note that FIG. 11-2 is a conceptual explanatory diagram showing a case where a plurality of driven-side rotating bodies are used in parallel as a configuration of the rotation detection system of the present invention provided with drive-side operation detection means. Such a configuration is also possible. Although within the scope of the present invention, the following describes the configuration shown in FIG.

Since the rotation detection system 6300 is provided with the drive-side operation detection means 68, it is possible to obtain information such as the rotation state of the drive-side rotating body Q, that is, the presence or absence of rotation. Information about the rotation state of the drive-side rotating body can be configured to be transmitted to the receiving device 620 as shown in the figure. Post-actuation drive control can be performed based on detection of the operating state of the drive-side rotor. The advantage of providing the drive side operation detection means will be described with reference to the following diagrams.

FIG. 12 is a conceptual explanatory diagram showing a configuration example of the squid fishing system of the present invention. As shown, this squid fishing system 7500 comprises a rotation detection system 7300 and a squid fishing machine SC. A receiving device (“receiving unit” in the figure) 720 and drive-side operation detection means (“current detection sensor in the figure”) 78 constituting the rotation detection system 7300 are provided in the squid fishing machine SC.

The squid fishing machine SC uses a motor MT to drive a drive unit AC, which rotates a drum (not shown). Also, the control panel CP is a device for outputting drive control of the motor MT. It also controls to stop driving immediately. The point that such emergency stop control is performed via the control panel CP is common to the conventional emergency stop operation method described with reference to FIG. and the present invention.

In other words, in the conventional technology, the detection method was performed at a time considerably delayed from the occurrence of the entanglement of the line, that is, the actuation of the hook. It is detected by a rotation detection device attached to the roller MR and transmitted to the receiving device 720 . Receipt of the rotational state abnormality information in the receiver 720 causes the emergency stop means ES to operate. After all, it can be said that the difference in the detection method is the basis of the squid fishing system 7500 of the present invention.

As shown in the figure, the rotation detection system 7300, which is one of the elements that make up the squid fishing system 7500, includes a rotation detection device 710 attached to the front roller MR, a receiver 720, and a setting command device (a "smartphone" as an example in the figure). ”) 770 . The rotation detecting device 710, the setting command device 770 and the receiving device 720 are connected by wireless communication means WL such as Bluetooth (registered trademark) . It should be noted that the drive-side operation detection means (“current detection sensor” in the figure) 78 may be grasped as one element of the rotation detection system 7300, or may be grasped as one element of the squid fishing machine SC.

Advantages of the present squid fishing system 7500 having such a configuration especially provided with the driving side operation detection means 78 will be described. By installing the current sensor 78 on the power cable connecting the control panel CP and the motor MT, it is possible to obtain information on the presence or absence of rotation on the drive side, and to determine the following situations.

First, when the current sensor 78 detects the operation of the motor MT (or the drive unit AC) but the rotation of the two front rollers MR, MR is not detected, both the front rollers MR, MR It is possible to detect that the squid needle that should be hooked to the front rollers MR, MR is in a state of being detached. In this case, the emergency stop means ES can be operated immediately to expect recovery.

Next, when only one drum is used for operation, even if the other drum is not connected to the front roller MR by the connection means shown in FIG. can be detected. The setting command device 770 should be made to be able to set necessary specifications as parameters.

Another advantage is the operation control of the emergency stop means ES. In a squid fishing operation using the squid fishing machine SC, it may be necessary to move the line BD to which the squid hook is attached while the motor MT (or the drive unit AC) is not in operation. For example, it is a case of performing work to recover the entanglement of squid needles. In this case, if the emergency stop means ES is activated during restoration work, it will be very inconvenient.

However, by providing the drive-side operation detection means 78, when it is detected that the motor MT (or the drive unit AC) is not operating, the emergency stop means ES is activated by detecting the rotation of the front roller MR. Such inconvenience can be avoided by setting it to not operate.
These advantages of providing the driving side operation detection means can be obtained without being limited to the application in the illustrated squid fishing system.

Further effects of the rotation detection system of the present invention, which is provided with the driving side operation detection means explained with reference to FIG. 11, will be explained with reference to FIG. 12-2. FIG. 12-2 is an explanatory diagram showing a trouble occurrence situation in the squid fishing method near the seabed. According to the information detected by the drive-side operation detection means (current sensor), there is no particular change in the drive-side rotating body (motor) and the operation continues, but the rotation of the two front rollers decelerates. , it can be determined that the squid needle has reached the seabed. As a result, the squid fishing machine can be quickly brought to an emergency stop, and the time required for restoration can be greatly shortened.

In squid fishing methods such as daytime squid fishing near the bottom of the sea, there are times when the depth of water for operating the fishing machine is set incorrectly. This is caused by a setting operation error or a setting error when automatically setting the water depth in conjunction with the fish finder. In such a case, as shown in FIG. 12-2, the weights WT and squid hooks ND of all the squid fishing machines SC land on the seabed ZB and become entangled, requiring a considerable amount of time to recover. Then, the rotations of the drums A and B are decelerated almost simultaneously. The same applies to drums C and D and drums E and F.

Therefore, as described above, if the two front rollers MR, MR decelerate at the same time even though there is no change in the detection result of the current sensor that detects the operating state of the motor of the driving side rotor, the tackle ND will reach the seabed ZB. can be determined. Further, when it is necessary to move the front roller MR to stop the squid fishing machine SC based on the information from the current sensor, the work can be performed smoothly without activating the emergency stop.

Contrary to what has been described above, the current sensor (driving side operation detection means) can also be used in the event that the driven side rotating body is operating while the driving side rotating body is not operating. It can be detected and judged by using it. Also in this case, the emergency stop means can be configured not to operate.
The effects described above can also be obtained in a system other than the squid fishing system.

According to the rotation detection device, the rotation detection system, and the squid fishing system of the present invention, it is possible to quickly detect entanglement in the sea squid during a squid fishing operation using a squid fishing machine, and save the time and effort required to restore the squid hook. can be reduced and safer operation for the crew. In addition, the present invention is not limited to early trouble detection technology when using a squid fishing machine, but is useful in all devices and systems where it is useful to directly detect the rotation of the driven rotating body, and in industrial fields related to them. It is an invention with high industrial applicability. The rotation detection system and the like of the present invention are particularly useful in all environments and situations where it is not suitable to use cables to attach each sensor.

2, 12, 22, 32, 42... bases 3A, 3B, 13A, 13B, 23A, 23B, 33A, 33B, 43A, 43B... acceleration sensors 4, 14, 24, 34, 44... signal processing units 10, 110, 210, 310, 410, 610, 710... Rotation detecting devices 15, 45... Mounting holes 20, 220, 320, 420, 620, 720... Receiving device 226... Receiving side arithmetic processing units 68, 78... Driving side operation detecting means (current sensor)
300, 2300, 3300, 4300, 5300, 6300, 7300...Rotation detection system 370, 470, 770...Setting command device 7500...Squid fishing system AC...Drive unit BD...Lines Bw...Reverse direction CJ...Connecting means CP...Control panel DM... Drum of a squid fishing machine ES... Emergency stop means Fw... Forward rotation direction HK... Hook MR... Driven side rotating body (front roller)
MT…Motor ND…Squid needle (gimmick)
Q... driving side rotating body q... rotation of driving side rotating body Q R, R1, R2... driven side rotating body r, r1, r2... rotation of driven side rotating body R SC... squid fishing machine WL... wireless communication means (Bluetooth (registered trademark), etc.)
WT... weight (weight)
X... Rotational axis ZB of the driven rotor R... Seabed

Claims (18)

A rotation detection device for detecting rotation of a driven-side rotating body rotated by rotation of a driving-side rotating body,
a base provided with specifications for attachment to the driven-side rotating body;
a pair of acceleration sensors provided on the base;
A rotation detection device, comprising: a signal processing unit for transmitting information related to rotation of the driven-side rotating body obtained by the acceleration sensor to the outside by a wireless method. 2. The rotation detection device according to claim 1, wherein the rotation detecting device is attached to each of a plurality of driven-side rotating bodies and used for monitoring the rotation state between each of the driven-side rotating bodies. 3. The rotation detection device according to claim 1, wherein the rotation detection device is for detecting rotation of a front roller constituting a squid fishing machine. 4. The rotation detecting device according to claim 1, wherein said substrate has a major axis/minor axis ratio exceeding one. 5. The rotating apparatus according to claim 1, wherein information on the number of revolutions detected by each acceleration sensor and information on the direction of rotation by comparison of the detection signals can be obtained by using the apparatus. detection device. 3. The signal processing unit includes an arithmetic processing unit that performs predetermined arithmetic processing on the detection signal obtained by the acceleration sensor to generate the detected rotational speed information and rotation direction information. 6. The rotation detection device according to 5. 6. The rotation apparatus according to claim 5, wherein the signal processing unit transmits a detection signal obtained by the acceleration sensor to the outside, and the detected rotation speed information and rotation direction information are generated outside the device. detection device. A rotation detection device according to any one of claims 1, 2, 3, 4, 5, and 6 attached to each of one or a plurality of driven-side rotating bodies rotated by the rotation of the drive-side rotating body, and the rotation detecting device. It is characterized by comprising a receiving device for receiving information transmitted from the signal processing unit of and is used for monitoring the rotation state between each driven rotor or each driven rotor based on the detected rotation speed information and rotation direction information. , rotation detection system. A rotation detection device according to claim 7 attached to each of one or a plurality of driven-side rotating bodies, and a reception device for receiving information transmitted from a signal processing unit of the rotation detection device, wherein the reception device comprises has a receiving side arithmetic processing unit that generates detected rotation speed information and rotation direction information based on the received detection signal, A rotation detection system characterized by being used for rotation state monitoring. 10. The apparatus according to any one of claims 8 and 9, further comprising a setting command device for transmitting communication connection settings in said receiving device and other setting information to said receiving device by a wireless method. rotation detection system. characterized by comprising emergency stop means for emergency stopping rotation of the drive-side rotating body in a predetermined state based on monitoring of the rotation state between the driven-side rotating bodies or each driven-side rotating body. 11. A rotation detection system according to any one of Clauses 8, 9 and 10. 12. The rotation detection system according to claim 8, further comprising drive side operation detection means for detecting operation of said drive side rotor. 13. The rotation detection system according to claim 12, wherein said drive-side rotor is driven by a motor, and said drive-side operation detection means is a current sensor for detecting a current associated with driving said motor. 14. The rotation detecting system according to claim 12, wherein information detected by said driving side operation detecting means is transmitted to said receiving device. An emergency stop means for emergency stopping the rotation of the driving side rotating body in a predetermined state based on the monitoring of the rotation state between the driven side rotating bodies or each driven rotating body, and the driving side operation detecting means 15. A rotation detection system according to any one of claims 12, 13 and 14, characterized in that it is configured not to operate said emergency stop means when no detection is made by said. 16. The rotation detection system according to any one of claims 8, 9, 10, 11, 12, 13, 14 and 15, for detecting rotation of a front roller that constitutes a squid fishing machine. A squid fishing system, characterized in that it comprises a rotation detection system according to any of claims 8, 9, 10, 11, 12, 13, 14, 15, 16. 18. The squid fishing system according to claim 17, wherein the information received by said receiving device is used for motor drive control.

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