CN2076745U - A buoy that detects schools of fish - Google Patents

Abstract

The utility model relates to a buoy of observable shoal of fish, including setting up in the internal components such as electron integrated board, frequency modulation antenna, battery of cavity superficial sample. The electronic integrated board generates ultrasonic frequency signals to be emitted out, and after the ultrasonic frequency signals are reflected back to be received by fish school, the signals are detected, amplified, integrated and modulated, and then the frequency modulation signals reflecting the existence and distance of the fish school are emitted out by the antenna, so that a fisher can receive the frequency modulation signals by the radio and judge the related conditions of the fish school according to the tone height of the signals.

Description

The utility model relates to a buoy capable of detecting fish schools, in particular to a fish detection buoy with a built-in simple electronic circuit.

Generally, the buoys used by anglers do not have a device for detecting fish schools. Anglers only judge whether there is a fish hooked by whether the buoy swings up or down. Like this, not only will keep an eye on buoy at any time, and often easily make wrong judgment, increase the number of times of lifting bar in vain. Although there are various fish detection devices at present, they all cannot satisfy the needs of general consumers because of complex structure, inconvenient use and high cost.

The purpose of this utility model is to provide a low-cost buoy that can detect fish schools. This kind of buoy has a small electronic circuit inside, and can accurately detect the presence or absence of fish schools by sonar, and judge the movement of fish schools. , in order to increase the probability of taking the bait.

The buoy that can detect fish schools described in the utility model includes a hollow buoy body composed of an upper body and a lower body, which contains an electronic integrated board, a battery, an ultrasonic transmitting transducer and a receiving transducer, and is connected to the integrated board. The antenna is set in the hollow marking rod at one end of the buoy. An oscillator in the circuit board feeds high-frequency signals to the driving stage of the ultrasonic transmitting transducer, and under the control of the timing processor, the transmitting transducer emits sonar signals into the water. When the sonar signal encounters a school of fish, it is immediately reflected back, received by the sonar receiving transducer, and then sent to the detection amplification stage and the integrating circuit to obtain a DC output. The DC output is used to control a voltage-controlled audio signal generator to generate an audio signal, and then pass through the frequency modulation transmitter stage to ride the audio signal on the FM carrier and emit it from the antenna. Anglers can borrow a universal radio to receive FM signals. Since the sonar signal is immediately reflected back when it encounters a school of fish, the time is very different from the time when it is reflected back from the bottom without a school of fish. Therefore, the magnitude of the above-mentioned DC output is also different in the two cases, resulting in the audio signal emitted on the FM carrier. The pitch of the pitch is also different, so it can be used to correctly judge the presence or absence of fish schools.

The buoy capable of detecting fish schools described in the utility model has the advantages of simple and delicate structure, small volume and low cost, and can meet the consumer demands of common anglers.

The accompanying drawings are as follows:

Fig. 1 is the full sectional view of the buoy that can detect fish school described in the utility model;

Fig. 2 is a partial sectional perspective view of the utility model;

Fig. 3 is a block diagram of the electronic integrated board of the present utility model;

Fig. 4 is a schematic diagram of the use of the buoy described in the present invention.

Below in conjunction with accompanying drawings, the buoy that can detect fish school described in the utility model is described in detail.

See Fig. 1 and Fig. 2, the buoy body (1) of the buoy described in the utility model includes an upper body (11) and a lower body (12), and a waterproof gasket (13) is arranged between the upper and lower bodies. In the hollow interior of the body (1), there is an electronic integrated board (15), the integrated board (15) is connected to the rechargeable battery (17) through the gasket (16), and the latter is connected to the rechargeable battery (17) through the insulating sheet (18) It is connected with the ultrasonic transmitting transducer (19) and the ultrasonic receiving transducer (20). At one end of the lower body (12) of the buoy, a hollow marking rod (121) with a built-in antenna (14) is formed. The other end of the lower body (12) is formed with a cylindrical wall (122), and the cylindrical wall (122) is provided with an external thread (123), which just matches the internal thread (114) at the corresponding end of the upper body (11). After the upper body (11) is screwed onto the lower body (12), press the waterproof gasket (13) installed in the groove (124) of the lower body (12), which plays a sealing role and prevents water from entering the body (1) internal. A buoyancy adjustment chamber (111) is provided in the middle part of one end of the upper body (11), and an appropriate amount of lead shot can be inserted therein to adjust the buoyancy. Two conical cavities (112) and (113) are formed on both sides of the buoyancy adjustment chamber (111), with built-in ultrasonic transmitting transducers (19) and ultrasonic receiving transducers (20). When the upper and lower bodies are screwed together, the arc pin (141) at one end of the antenna (14) just firmly withstands a contact (151) on the integrated board (15), and the integrated board (15), gasket (16) , rechargeable battery (17) and insulating sheet (18) are also respectively in place, so that the whole circuit is brought into operation.

Now illustrate with respect to circuit structure according to Fig. 3: oscillator (152) produces the oscillating signal of 40,000 cycles, inputs the driving stage (153) of transmitting transducer (19), and the latter is in the control of timing processor (154) Next, push the transmitting transducer (19) to send out an ultrasonic signal, while the ultrasonic receiving transducer (20) waits for the ultrasonic signal to be reflected back. The shallower the fish or school of fish are in the water, the shorter the time it takes for the ultrasonic wave to be reflected back after hitting the school of fish. The deeper the fish is in the water, the longer it takes for the sound waves to reflect back. If there is no school of fish, the sound wave will not be reflected until it reaches the bottom of the water, which takes the longest time. After the ultrasonic receiving transducer (20) receives the reflected sound wave signal (usually called an echo), the AC signal is detected and amplified by the detection amplifier (155), and then passed through the integrator (156) to obtain a DC output . The detector amplifier (155) is also controlled by the timing processor (154). The output terminal of the integrator (156) is multiplexed to a voltage-controlled audio signal generator (157), and the integrated DC voltage signal is converted into a corresponding audio AC signal. The amplitude of the audio AC signal reflects the The presence or absence of fish schools and the distance. The audible AC signal is then fed to a frequency modulated transmitter (158) which rides on a FM carrier and is transmitted via the antenna (14). The modulated signal emitted by the antenna (14) can be received by the radio (2), and the pitch of the received audio signal can be used to judge whether there is a school of fish or how far it is, so as to provide anglers with relevant information. The information of the time to lift the pole increases the fishing rate.

In addition, in the buoy body (1) of the buoy described in the utility model, there is also a DC converter (120), which converts the DC voltage of the rechargeable battery (3.6 volts) into DC 12 after oscillation and rectification. Volts, and output after being stabilized, supplying the aforementioned integrated circuit board. The battery (17) can also be taken out and recharged for use after being used up.

Fishermen can detect the existence or distance of fish schools by means of the audio frequency signal changes produced by the radio (2), and can also measure the depth of water, the situation of fish schools feeding on bait, and the like.

Claims (3)

1, the buoy of a kind of detectable shoal of fish comprises a buoy body, it is characterized in that, described buoy body comprises a upper body and a following body,

--upper body one end middle part is provided with a buoyancy and adjusts the chamber, and both sides, described adjustment chamber are formed with in order to place two conical cavities of ultrasound transmitting transducer and receiving transducer, and its outside is provided with an insulating trip, and the other end of described upper body is provided with internal thread,

--following body one end is formed with the sign bar of built-in frequency-modulated antenna, and the other end is formed with a cylindrical wall, described cylindrical wall be provided with above-mentioned internal thread coupling outside screw thread, and have one in described external screw thread inboard in order to placing the groove of waterproof washer,

--in the described up and down cavity that body surrounded, be provided with a electronic integrated board in order to produce that ultrasonic transmits and reflected signal is received and handles, one end and aforementioned antenna join, the other end is provided with a pad, is crimped with one group of rechargeable battery between described pad and the aforementioned dielectric sheet.

2, the buoy of the detectable shoal of fish according to claim 1 is characterized in that described antenna bottom is formed with a circular arc pin, and when body was tightened up and down, described circular arc pin just in time withstood a contact of described circuit board one end.

3, the buoy of the detectable shoal of fish as claimed in claim 1 or 2 is characterized in that described electronic integrated board includes

--oscillator, transmitting transducer in order to the emission ultrasonic signal promote level and sequential processing device,

--launch the transmitting transducer of ultrasonic signal to the shoal of fish,

--be used for handling detector amplefier, integrator and the voltage type audio signal generator of the echo-signal that receives,

Wherein transmitting transducer promotes level and detector amplefier is controlled by described sequential processing device all, and the sound signal that is produced by described voltage type audio signal generator, and the mat frequency modulation(PFM) is launched with the FM signal form via a transmitter.

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