JP2672274B2 - Anti-theft device for seafood - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seafood theft prevention device for detecting and preventing theft of seafood for aquaculture such as pearl oysters for aquaculture installed in a fishing ground.

[0002]

2. Description of the Related Art Conventionally, as a method for preventing theft of fish and shellfish for aquaculture, as shown in FIG. 7, an image of a fishing ground floor 1 on the sea where fish and shellfish for aquaculture is installed is taken by using a surveillance camera 2 on the ground. ,
Monitor the area around the fishing ground 1 with human eyes and manual operation,
A threatening person or an object such as a ship displayed on the monitor screen is intimidated by using the light projector 3 on the ground, and the reaction of the person or the object immediately after the intimidation is used to judge whether or not it is a theft. .

[0003]

According to this conventional method, (1) at the time of caution, the surveillance camera must be operated and moved at all times to monitor the surroundings of the fishing ground, resulting in a decrease in concentration, carelessness, etc. This increases the possibility of delaying the discovery of theft.

(2) It is difficult to identify the theft position. (3) At the time of intimidation, the possibility of misidentification increases because it is judged whether or not the person is a thief based only on the reaction of the intimidated person.

(4) There is a problem that it is difficult to monitor with a monitoring camera because the visibility is poor in bad weather. The present invention has been made in view of the above circumstances, and automatically detects a thief and automatically threatens a thief, and automatically issues an alarm and informs a watcher, thereby ensuring a short time. Another object of the present invention is to provide a seafood theft prevention device capable of preventing theft of aquaculture seafood.

[0006]

In order to achieve the above object, a seafood theft prevention device of the present invention detects a culture vessel that is installed in water and stores seafood, and that the culture vessel is pulled up. And a sensor for outputting a detection signal, and a warning signal to which an address code corresponding to the aquaculture container is added according to the detection signal from the sensor is transmitted to the air.
Wireless device, a second wireless device that transmits a threatening start signal or an operation stop signal in the air when a notification signal added with the address code from the first wireless device is received, and the second wireless device. Responding to the address code when the threatening start signal from the device is received by the first wireless device and the alerting signal with the address code added by the second wireless device is received. It is characterized by comprising a floodlight for illuminating the installation location of the aquaculture container, and an alarm means for issuing an alarm when the alarm signal added with the address code is received by the second wireless device.

Further, the seafood theft prevention device of the present invention detects a wire breakage or tension change of the aquaculture container in which the seafood is stored and is installed by a suspending member in water, and outputs a detection signal. A sensor and a first wireless device that transmits a warning signal to the air, to which an address code corresponding to the aquaculture container is added, based on a detection signal from the sensor,
A second wireless device that transmits a threatening start signal or an operation stop signal to the air when an alerting signal added with the address code from the first wireless device is received, and a threatening start from the second wireless device. Intimidating means for intimidating when a signal is received by the first wireless device, and an aquaculture container installation location corresponding to the address code when an alarm signal with an address code is received by the second wireless device And a warning means for issuing a warning when the alarm signal added with the address code is received by the second wireless device.

[0008]

With the above-mentioned means, the present invention automatically links each device installed on the ground and fishing grounds with a wireless device, automatically detects a theft act, automatically threatens the thief, and automatically gives an alarm. To inform the surveillance personnel, the monitoring workload can be significantly reduced, and false detection can be prevented by detecting the theft act itself, and reliable theft detection that is not affected by the weather can be performed, and the theft location can be detected accurately. The position can be grasped, and the seafood for aquaculture can be reliably prevented from being stolen in a short time.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. 2 to 4 show an embodiment of the present invention, and FIG.
Is a ground device, FIG. 3 is a fishing ground, and FIG. 4 is a theft detector.
As shown in FIG. 2, the ground device includes a transmitting / receiving antenna 11,
A transmitter / receiver radio 12, a control circuit 13, a light projector 14, a turning device 15 for turning the light projector 14, an alarm buzzer 16, an alarm display 17, a surveillance camera 18, and an image display 19 for reproducing a captured image of the surveillance camera 18. To be done. In addition, as shown in FIG. 3, a plurality of aquaculture cages (culture vessels) 21 are suspended by suspending ropes (suspension members) 22 and installed in the sea (underwater) on a fishing ground floor 20 floating on the sea. Each of the aquaculture cages 21 accommodates a plurality of aquaculture fish (eg, cultured pearl oysters) 23 and a theft detector 24. An example of the theft detector 24 is, as shown in FIG. 4, a transmission / reception antenna 31, a transmission / reception wireless device 32, and a control circuit 3.
3, a sensor for detecting the presence of air in the sea, for example, an undersea sensor 34 including a temperature sensor, a continuity sensor, a water pressure sensor, a water sensor, a first switch 35,
Battery 36, second switch 37, threatening buzzer 38,
It is composed of a threatening flashlight 39.

That is, the theft detector 24 sets an address code (positional information) indicating the installation position of the theft detector 24 from the outside in advance in a storage circuit inside the control circuit 33 and stores it before installing it in the sea. .

At the time of warning of theft, since the theft detector 24 is submerged in the sea, the undersea sensor 34 outputs a normal signal to the control circuit 33. In this case, since the control circuit 33 controls the first switch 35 of the power supply for the wireless device to be off, the battery 36 is not connected to the wireless device 32, so that the power is not turned on and the wireless device 32 does not operate (low power consumption). I am trying to).

In case of theft, the hanging rope 22 shown in FIG.
Is lifted by a thief and the aquaculture cage 21 is taken out of the sea into the air. At this time, the undersea sensor 34 operates and outputs an abnormal signal (detection signal) to the control circuit 33, so that the control circuit 33 causes the first switch 3 of the power supply for the wireless device to operate.
5 is turned on, and the radio 32 starts to operate.

At the same time that the radio 32 operates, the radio 3
From 2 to the ground device, an alarm signal to which an address code indicating the installation position of the theft detector 24 is added is transmitted to the air via the transmitting / receiving antenna 31. In this case, as shown in FIG. 6, the alarm signal S1 added with the address code transmitted from the theft detector 24 is continuously n in a constant cycle T1.
Sent repeatedly.

On the other hand, in the terrestrial device, as shown in FIG. 2, the alerting signal S1 added with the address code transmitted from the theft detector 24 is received by the transceiver 12 via the transceiver antenna 11. When the transmission / reception wireless device 12 receives the alarm signal S1 added with the address code transmitted from the theft detector 24, the control circuit 13 causes the transmission / reception wireless device 1 to transmit.
6 from the ground device to the theft detector 24 via
The threatening start signal S2 as shown in FIG.
Sent over the air.

In the theft detector 24, the threatening start signal S2 transmitted from the ground device is received by the wireless device 32 via the transmitting / receiving antenna 31. When the threatening start signal S2 transmitted from the ground device is received by the wireless device 32, the control circuit 33
Turns on the second switch 37, and the threatening buzzer 38,
The threatening flashlight 39 is activated to generate a buzzer sound and blink the flashlight.

When the control circuit 13 of the ground device recognizes the address code of the alarm signal S1 added with the address code transmitted from the theft detector 24, the control circuit 1
3 is the position of the fishing ground floor 20 corresponding to the address code,
An angle signal is output to the turning device 15 so that the optical axis of the projector 14 is directed, the projector 14 is moved, and the light of the projector 14 is turned on. In addition, the theft detector 24 in the control circuit 13
Signal S1 with address code sent from
At the same time that the address code of
Sounds the alarm buzzer 16 and displays the alarm indicator 17
The location of the theft is displayed on the monitor to inform the surveillance person of the location of the theft. In this case, the fishing ground 20 can be monitored by reproducing the image captured by the monitoring camera 18 on the image display 19.

When the aquaculture cage 21 is pulled up by mistake or during the normal operation of the aquaculture operator (at the time of operation at the fishing ground), the alarm signal S3 from the theft detector 24 as shown in FIG. In response to this, the control circuit 13 of the ground apparatus transmits an operation stop signal S4 as shown in FIG. 6 to the theft detector 24 from the transmission / reception antenna 11 via the transmission / reception wireless device 12. Control circuit 33 of theft detector 24
Receives the operation stop signal S4 from the ground device via the transmission / reception antenna 31 and the transmission / reception wireless device 32, immediately turns off the first switch 35, and keeps the first switch 35 for a certain period of time T _2. By stopping the control of (1), false alarms are prevented and the battery consumption is reduced.

In FIG. 6, t ₁ is when the undersea sensor 34 is on, t ₂ is when the first switch 35 is on, and t ₃ is the second.
When the switch 37 is turned on, t ₄ is when the threatening buzzer 38 and the threatening flashlight 39 are on, t ₅ is when the threatening buzzer 38 and the threatening flashlight 39 are off, and t ₆ is when the second switch 37 is off. , T ₇ is the first switch 3
5 is off, t ₈ is when the first switch 35 is off, t ₉
Indicates that the first switch 35 is off. The alarm signal S3 is not transmitted after the second time.

1, 2, and 5 show another embodiment of the present invention. FIG. 1 shows a theft detector, FIG. 2 shows a ground device, and FIG. 5 shows a fishing ground. In the figure, the same parts as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. As shown in FIG. 5, a plurality of floats 52 made of a plastic case are provided on the fishing ground floor 51 floating on the sea, and the theft detectors 53 are respectively accommodated in the floats 52. Corresponding to each of the floats 52, aquaculture cage (aquaculture vessel) 21 is suspended by a suspending rope (suspension member) 22 and installed in the sea (underwater). The aquaculture seafood (for example, cultured pearl oysters) 23 is stored.

The theft detector 53, as shown in FIG.
A difference is that a tension sensor 54 and a disconnection sensor (wire) 55 are provided in place of the underwater sensor 34 of FIG. That is,
The tension sensor 54 includes a suspension rope 22 and a control circuit 33.
The disconnection sensor 55 is connected to the control circuit 33, and is fixed to the suspension rope 22 by a fixing band 56 or the like.

At the time of caution, the tension sensor 54 of the theft detector 53
Is in the on state (normal) because the hanging rope 22 is pulled downward by a constant force due to the weight of the aquaculture basket 21 and the aquaculture fish 23, and the disconnection sensor 55 is not disconnected. , Is on (normal). In this case, since the control circuit 33 controls the first switch 35 of the power supply for the wireless device 32 to be turned off, the wireless device 32 has the battery 3 connected.
Since 6 is not connected, the power is not turned on and the wireless device 32 does not operate (to reduce power consumption).

In case of theft, the hanging rope 22 shown in FIG.
Is stolen by the thief, and the farm cage 21 emerges from the sea into the air. At this time, the tension force applied to the tension sensor 54 is weakened, the tension sensor 54 is turned off (abnormal), and an abnormal signal (detection signal) is output to the control circuit 33, so that the power supply for the wireless device 32 is generated. The first switch 35 is turned on, and the wireless device 32 starts operating.
Similarly, when the thief disconnects the suspension rope 22 before pulling it up, the disconnection sensor 5
When the wire 5 is cut, the disconnection sensor 55 is turned off (abnormal), and an abnormal signal (detection signal) is issued to the control circuit 33, so that the wireless device 32 starts operating.

In this case, t _{1 in} FIG. 6 is when the tension sensor 54 or the disconnection sensor 55 is turned on. As described above, each device installed on the ground and on the fishing ground is automatically interlocked with a wireless device, the thief is automatically detected and the thief is automatically threatened, and an alarm is automatically issued to monitor the situation. By notifying the user, it is possible to significantly reduce the monitoring work load, and prevent the misidentification by detecting the theft act itself, and it is possible to detect the theft reliably regardless of the weather and to grasp the exact location of the theft place. In a short time, it is possible to reliably prevent theft of seafood for aquaculture.

[0024]

As described above, according to the present invention, a thief is automatically detected and a thief is threatened automatically, and an alarm is automatically issued to notify a watcher. Thus, it is possible to provide a seafood theft prevention device capable of reliably preventing the theft of seafood for aquaculture.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory view showing an example of a theft detector according to the present invention.

FIG. 2 is a structural explanatory view showing an example of a ground device according to the present invention.

FIG. 3 is a structural explanatory view showing an example of an installed state of a theft detector according to the present invention.

FIG. 4 is a structural explanatory view showing another example of the theft detector according to the present invention.

FIG. 5 is a structural explanatory view showing another example of the installation state of the theft detector according to the present invention.

FIG. 6 is a timing chart showing an example of a warning signal from a theft detector and a threatening start signal from a ground device at the time of warning and at a normal time according to the present invention.

FIG. 7 is a structural explanatory view showing a conventional method for preventing theft of seafood.

[Explanation of symbols]

11 ... Transmission / reception antenna, 12 ... Transmission / reception radio, 13
... control circuit, 14 ... floodlight, 15 ... turning device, 16 ... alarm buzzer, 17 ... alarm indicator, 18 ... surveillance camera, 19
... Image display, 20 ... Fishing floor, 21 ... Culture basket (culture container), 22 ... Hanging rope (hanging member), 23 ...
Aquaculture seafood (for example, cultured pearl oysters), 24 ... Theft detector, 31 ... Transmitting / receiving antenna, 32 ... Transmitting / receiving radio,
33 ... Control circuit, 34 ... Underwater sensor, 35 ... First switch, 36 ... Battery, 37 ... Second switch, 38 ...
Intimidating buzzer, 39 ... Flash light for intimidating.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 62-162196 (JP, A) JP 60-191388 (JP, A) JP 53-127295 (JP, A) JP 59- 197994 (JP, A) JP-A-3-283000 (JP, A) Actually open flat 2-14196 (JP, U)

Claims (2)

(57) [Claims] 1. A culture vessel that is installed in water and stores seafood, a sensor that detects when the culture vessel is pulled up and outputs a detection signal, and a detection signal from this sensor causes the culture vessel to A first wireless device that transmits an alerting signal to which a corresponding address code is added in the air, and a threatening start signal or operation stop signal when the alerting signal to which the address code is added is received from the first wireless device A second wireless device for transmitting in the air, an intimidating means for intimidating when a threatening start signal from the second wireless device is received by the first wireless device, and an address in the second wireless device. When a warning signal with a code is received, a projector that illuminates the installation location of the aquaculture container corresponding to the address code, and an alarm when a warning signal with the address code is received by the second wireless device is issued. Departure An anti-theft device for seafood, comprising: 2. An aquaculture container that is installed in water by a suspending member and stores seafood, a sensor that detects a disconnection or a change in tension of the suspending member and outputs a detection signal, and a detection signal from this sensor. The first radio that transmits an alarm signal with an address code corresponding to the aquaculture container to the air by the device and the alarm signal with an address code from the first wireless device is received A second radio that transmits a signal or an operation stop signal to the air; a threatening unit that performs a threatening operation when a threatening start signal from the second radio is received by the first radio; When a warning signal to which an address code is added is received by this wireless device, a floodlight that illuminates the installation location of the aquaculture container corresponding to the address code, and a notification signal to which the address code is added by the second wireless device A seafood theft prevention device, comprising: an alarm means for issuing an alarm when the number is received.