CN211721563U

CN211721563U - Visual fish finder capable of being accurately positioned and fish finding system thereof

Info

Publication number: CN211721563U
Application number: CN201922472731.7U
Authority: CN
Inventors: 犹云; 李晓龙; 刘威; 王哲; 王思奥
Original assignee: Shenzhen Chasing-Innovation Technology Co ltd
Current assignee: Shenzhen Chasing-Innovation Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-23
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a but visual fish finding ware of accurate positioning and fish finding system thereof relates to fish finding equipment technical field. The underwater probe of the fish finder is connected with the water surface positioning buoy through a communication cable; a camera and a control circuit board are arranged in the underwater probe, and a gyroscope and an electronic compass are arranged on the control circuit board; the upper shell and the lower shell of the water surface positioning buoy are fixedly connected, and a watertight containing space is formed between the upper shell and the lower shell; the battery pack is detachably assembled on the outer side wall of the water surface positioning buoy, the inner side wall of the top of the water surface positioning buoy is provided with a GPS module, a wireless communication module and a control mainboard, and the control mainboard is provided with a microprocessor, an electronic compass and a gyroscope; the lower part of the outer side wall of the lower shell is uniformly distributed with propellers, and the inner part of the lower shell is fixed with a winding device; the battery pack is connected with the control mainboard, the GPS module, the wireless communication module and the winding device through electric signals. The fish finder can accurately explore the type, size and position information of underwater fish schools, and greatly improves the experience of customers.

Description

Visual fish finder capable of being accurately positioned and fish finding system thereof

Technical Field

The utility model relates to a fish finding equipment technical field, concretely relates to visual fish finder that can pinpoint and fish finding system thereof.

Background

The fish finder products in the current market are various in types and have various functions, and the fish finder products can be basically divided into two types from the view of the working principle.

One type is to use sonar positioning technology and realize the fish finding purpose by the sound wave transmission principle. The fish finder measures the distance by means of the time returned by the sound wave touching the object after sending the sound wave, and the fish finder can recognize the information of the fish through the reflected sound wave signal. The fish finder collects sonar signals through a probe with a sonar generator on the water surface, and then obtains fish information through calculation of a microprocessor and displays the fish information to a user. The other type is to use the underwater shooting principle, mainly comprises a waterproof camera and an above-water display, is connected by a cable or a wireless network, and observes the underwater condition through a display device so as to find fish.

Sonar fish finder among above-mentioned fish finder is with high costs, and the structure is complicated, and bulky quality is heavy, and it is inconvenient to use. The range of the sonar fish finder is the full depth, but not the range of the specific depth in the water, and most of the collected mass information is basically invalid information. In addition, the fish finding force at the bank of small reservoirs, rivers and lakes is not good, the main reasons are that the landform at the bank is complex, water and grass are bushy, the ultrasonic fish finder presents a disordered echo, and the fish finding effect at the bank by using the ultrasonic fish finder can be greatly reduced. The fish finder based on the underwater shooting principle can only realize underwater shooting, cannot detect other underwater information, cannot accurately position due to the fact that the underwater position of the waterproof camera is greatly deviated from an actual observation position, and is not large in practical significance.

Therefore, it is an urgent technical problem to develop a fish finder which can accurately locate a fish school, capture image information of the fish school, and even track the fish school.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but visual fish finding ware of accurate positioning and fish finding system thereof solves the problem that current fish finding ware can't pinpoint the shoal of fish, track the shoal of fish.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a visual fish finder that can pinpoint which characterized in that: the underwater probe is connected with the water surface positioning buoy through the communication cable; the underwater probe is internally provided with a camera and a control circuit board, the camera is in electric signal connection with the control circuit board, and the control circuit board is in electric signal connection with one end of a communication cable; a gyroscope and an electronic compass are arranged on the control circuit board; the water surface positioning buoy is composed of an upper shell, a battery pack, a lower shell, a winding device and a control mainboard, wherein the upper shell and the lower shell are fixedly connected, a watertight accommodating space is formed between the upper shell and the lower shell, and the battery pack is detachably assembled on the outer side wall of the water surface positioning buoy; a GPS module, a wireless communication module and a control mainboard are arranged in the upper shell, and a microprocessor, an electronic compass and a gyroscope are arranged on the control mainboard; the propellers are symmetrically distributed on the lower part of the outer side wall of the lower shell, the winding device is fixed in the lower shell, and the other end of the communication cable is in electric signal connection with the control main board through the winding device; the battery pack is connected with the control mainboard, the GPS module, the wireless communication module and the winding device through electric signals.

The technical scheme is that the top of the upper shell is downwards concave or the bottom of the lower shell is upwards concave to form a groove, a first watertight connector is arranged at the bottom of the groove, a socket is arranged at the bottom of the battery pack, the socket is connected to a plug at one end of the first watertight connector in an inserting mode, and the other end of the first watertight connector is electrically connected with the control mainboard through a cable.

The water surface positioning buoy is provided with a power switch, the power switch is electrically connected with the battery pack, and the power switch is a button switch or an inductive switch.

A further technical scheme is that the winding device comprises a motor and a winding wheel, the winding wheel comprises a stator wheel and a rotor wheel which are coaxially arranged, a shaft is fixed in the middle of the stator wheel, a conductive slip ring stator is sleeved on the outer side wall of the shaft, a conductive slip ring rotor is sleeved on the conductive slip ring stator, the rotor wheel is sleeved on the conductive slip ring rotor, a transmission shaft is arranged on the outer side wall of the rotor wheel, and the motor drives the transmission shaft to rotate; the shaft is provided with a through hole, the rotor wheel is provided with a wire outlet hole, and the communication cable is divided into two sections at the conductive slip ring; one end of one section of communication cable is connected with the control main board, and the other end of the communication cable is inserted from the through hole on the shaft and is connected with the conductive slip ring stator; one end of the other end communication cable is connected with the conductive slip ring rotor, and the other end of the other end communication cable penetrates through the wire outlet hole and is connected with the underwater probe through the rotor wheel.

The technical scheme is that the underwater probe comprises a probe shell and a probe sealing cover, a lens, a camera and a control circuit board are sequentially fixed inside the probe shell, a depth sensor and a temperature sensor are arranged at the top of the probe sealing cover, a second watertight connector clip is arranged in the middle of the top, a plug at one end of the second watertight connector clip is connected with a communication cable, and the other end of the second watertight connector clip is connected with the control circuit board through a cable.

According to a further technical scheme, a lifting lug is arranged on the outer side wall of the underwater probe, a first traction rope and a second traction rope are arranged on the communication cable, the free end of the first traction rope is connected with the lifting lug, and a balancing weight is hung at the tail end of the second traction rope.

A further technical scheme is that illuminating lamps are arranged on the shell of the probe and are uniformly distributed around the camera.

The further technical proposal is that the propellers are provided with 2-6 propellers and are arranged on the same circumference.

A further technical scheme is that the top of the upper shell is provided with an indicator light and a WIFI antenna, and the bottom of the lower shell is provided with a fish luring light.

The utility model discloses can also be a visual fish finding system that can pinpoint, its characterized in that: the fish finder comprises a mobile terminal and the fish finder in any one of the technical schemes, wherein the mobile terminal is in signal connection with a wireless communication module.

The working principle is as follows: the fish finder is thrown on the water surface, a GPS module in the water surface positioning buoy receives satellite signals, the microprocessor calculates position information in real time, and the water surface positioning buoy is relatively fixed in a target position micro range by driving the propeller.

The underwater probe moves under the traction of the communication cable and moves up and down under the control of the winding device, the camera inside the underwater probe feeds collected images back to the mobile terminal, an operator judges whether the fish is a target fish school or not through the images, if the fish is the target fish school, the relative position information of the underwater probe relative to the water surface positioning buoy is resolved through the absolute position information of the water surface positioning buoy, a gyroscope and an electronic compass carried by the underwater probe, and the accurate position of the fish school is obtained and recorded in combination with the depth information fed back by the depth sensor. If not, the water surface positioning buoy is driven by the mobile terminal to search and position the fish school on the water surface. The operator can make a corresponding fishing strategy through the observed fish information.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the upper shell provides enough buoyancy for the buoy, and the GPS module, the microprocessor, the gyroscope and the electronic compass which are carried by the upper shell effectively record the position information of the buoy; the wireless communication module and the mobile terminal carry out remote communication and data transmission.

2. The thruster and the winding device on the lower shell effectively reduce the gravity center of the thruster, ensure the effective draught of the thruster and ensure the buoy to have better static stability and navigation stability.

3. The camera of the underwater probe effectively transmits the captured images back, and the position information of the underwater probe relative to the buoy is calculated by combining the gyroscope and the electronic compass, so that the fish school is accurately positioned.

4. The quick replacement of battery can be realized to the quick dismantlement structure of group battery, makes things convenient for battery charging, also avoids influencing experience and feeling because of the battery does not have the electricity and can't the fast switch-over stand-by power supply again in the use.

5. The winding device can be used in an underwater environment by hermetically assembling the conductive slip ring in an assembling gap between the reel stator wheel and the rotor wheel; meanwhile, one section of the communication wire is fixed on the conductive slip ring stator, and the other section of the communication wire is fixed on the conductive slip ring rotor, so that signal transmission of the communication cable is not influenced during winding, the rotor wheel and the conductive slip ring rotor synchronously rotate during winding, and the phenomenon that the communication cable is twisted or even broken due to the fact that the rotor wheel and the stator wheel move relative to each other is avoided.

6. The depth sensor of the underwater probe can feed back the depth information of the underwater probe, the temperature sensor can feed back the water temperature information, and by combining the characteristics, the fish finder can accurately probe the position information of underwater fish school type, size, water temperature, depth and the like, so that the experience satisfaction of customers is improved.

7. The length that the control haulage rope passed the lug, cooperation balancing weight can make underwater probe keep certain angle in aqueous and horizontal plane to observe, and the rotation of accessible buoy realizes diversified multi-angle simultaneously and observes the shoal of fish, can more audio-visual size of seeing the fish. The balancing weight can effectual anchor fish finding ware after sinking into the bottom, can make probe position fix can not rock along with the rivers on the one hand, and on the other hand can also reduce the fluctuation range of buoy at the surface of water, can close buoy propeller system when the fixed point observation angles the some circumstances, reaches the purpose of power saving.

8. The light makes the fish finder still can work under dim environment of light, and the pilot lamp makes can make the buoy position clear away far away and night, and the fish luring lamp can realize attracting fish.

Drawings

Fig. 1 is a schematic structural view of the fish finder in the present invention.

Fig. 2 is a schematic structural view of the middle water surface positioning buoy of the present invention.

Fig. 3 is the internal structure diagram of the middle water surface positioning buoy of the present invention.

Fig. 4 is an assembly diagram of another battery pack according to the present invention.

Fig. 5 is a schematic view of the internal structure of the reel according to the present invention.

Fig. 6 is a schematic structural view of the underwater probe of the present invention.

Fig. 7 is the internal structure schematic diagram of the underwater probe of the present invention.

Fig. 8 is an assembly schematic diagram of the underwater probe of the present invention.

In the figure: 1-underwater probe, 11-camera, 12-control circuit board, 13-probe shell, 14-probe sealing cover, 15-lens, 16-second watertight plug connector, 17-lighting lamp, 18-temperature sensor, 19-lifting lug, 2-water surface positioning buoy, 21-upper shell, 211-groove, 212-first watertight plug connector, 22-battery pack, 23-lower shell, 24-winding device, 241-motor, 242-winding wheel, 2421-stator wheel, 2422-rotor wheel, 2423-shaft, 2424-conductive slip ring stator, 2425-conductive slip ring rotor, 2426-transmission shaft, 25-propeller, 3-communication cable, 31-first traction rope and 32-second traction rope.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Fig. 1 shows a visual fish finder capable of accurately positioning, which is composed of an underwater probe 1, a water surface positioning buoy 2 and a communication cable 3, wherein the underwater probe 1 and the water surface positioning buoy 2 are connected through the communication cable 3.

The underwater probe 1 is internally provided with a camera 11 and a control circuit board 12, the camera 11 is in electric signal connection with the control circuit board 12, and the control circuit board 12 is in electric signal connection with one end of the communication cable 3; the control circuit board 12 is provided with a gyroscope and an electronic compass.

The water surface positioning buoy 2 is composed of an upper shell 21, a battery pack 22, a lower shell 23, a winding device 24 and a control main board, the upper shell 21 and the lower shell 23 are fixedly connected, a watertight containing space is formed between the upper shell 21 and the lower shell 23, and the battery pack 22 is detachably assembled on the outer side wall of the water surface positioning buoy (2).

The upper shell 21 is internally provided with a GPS module, a wireless communication module and a control mainboard, and the control mainboard is provided with a microprocessor, an electronic compass and a gyroscope. The control mainboard, the GPS module and the wireless communication module are hermetically assembled and electrically connected through the watertight connector clip, so that water is prevented from entering the equipment and damaging the equipment.

The lower part of the outer side wall of the lower shell 23 is symmetrically provided with 2-6 propellers 25 which are arranged on the same circumference, the lower shell 23 is internally fixed with a winding device 24, and the other end of the communication cable 3 is in electric signal connection with the control mainboard through the winding device 24.

The battery pack 22 is in electrical signal connection with the control mainboard, the GPS module, the wireless communication module and the winding device 24.

The fish finder is used in combination with a mobile terminal, and the mobile terminal is usually a client such as a mobile phone and a tablet computer with corresponding application software. During the use, with the fish finding ware on the surface of water, surface of water location buoy 2 floats on the surface of water because of the buoyancy effect, and underwater probe 1 is at self gravity and through 24 unwrapping wires of coiling device, moves under water under the communication cable 3 traction.

The GPS module in the water surface positioning buoy 2 receives satellite signals, the microprocessor calculates position information in real time, and the water surface positioning buoy 2 is relatively fixed in a small range (the error is not more than 1 meter) of a target position by driving the propeller 36.

The camera 11 in the underwater probe 1 feeds back the acquired image to the mobile terminal, and an operator acquires the fish school size and type information through the image and judges whether the fish school is a target fish school. If so, the relative position information of the fish relative to the water surface positioning buoy 2 is calculated through the absolute position information of the water surface positioning buoy 2, a gyroscope and an electronic compass carried by the underwater probe 1, and the accurate position of the fish school is obtained and recorded. If not, a control signal is given through the mobile terminal, the water surface positioning buoy 2 is driven to move through the propeller 25, and fish shoal searching and positioning are continuously carried out on the water surface. The operator can make a corresponding fishing strategy through the observed fish information.

The upper shell 21 provides sufficient buoyancy for the water surface positioning buoy 2, and a GPS module, a microprocessor, a gyroscope and an electronic compass which are carried by the upper shell effectively record the position information of the upper shell; the wireless communication module and the mobile terminal carry out remote communication and data transmission.

The thruster 25 and the winding device 24 on the lower shell 23 effectively reduce the gravity center of the lower shell, ensure the effective draught of the thruster 25 and ensure that the water surface positioning buoy 2 has better static stability and navigation stability.

Go up casing 21 top and be provided with pilot lamp, WIFI antenna, lower casing 23 bottom is provided with the attracting lamp. The indicating lamp can make the buoy position clear at a longer distance and at night, and the fish luring lamp can realize fish luring.

Example 2

In order to further optimize the technical solution in embodiment 1, in this embodiment, the top of the upper housing 21 is recessed downward to form a groove 211, the bottom of the groove 211 is provided with a first watertight connector 212, the bottom of the battery pack 22 is provided with a socket, the socket is plugged into a plug at one end of the first watertight connector 212, and the other end of the first watertight connector 212 is electrically connected to the control main board through a cable.

As shown in fig. 2 and 3, when in use, the fully charged battery pack 22 is inserted into the first watertight connector 212 at the bottom along the groove 211, and the power switch 221 is pressed, so that all electrical elements of the fish finder are electrified, and fish finding operation can be carried out. Meanwhile, in order to facilitate disassembly and assembly, the top of the outer side wall of the battery pack 22 is inwards concave to form a step shape, so that the battery pack is convenient to grab. Through the quick assembly disassembly of group battery 22, can realize the fast switch-over of power, especially when group battery 22 electric quantity is not enough in the use, but fast switch-over becomes stand-by power supply, has promoted customer experience greatly and has felt.

The same structure can also be used for the lower casing 23, as shown in fig. 4, the bottom of the lower casing 23 is concave upwards to form a groove 211, the bottom of the groove 211 is provided with a first watertight connector 212, the bottom of the battery pack 22 is provided with a socket, the socket is plugged into a plug at one end of the first watertight connector 212, and the other end of the first watertight connector 212 is electrically connected with the control mainboard through a cable. The battery pack 22 mounted on the lower housing 23 further lowers the center of gravity of the surface positioning buoy 2, making it operate more smoothly.

In order to facilitate the starting of the fish finder, a power switch is arranged on the water surface positioning buoy 2 and is electrically connected with the battery pack 22, and the power switch is a button switch or an inductive switch. The button switch can be installed on the surface of the shell, and the inductive switch such as an infrared inductive switch, a water inductive switch and the like are installed inside the shell.

Example 3

In order to further optimize the technical solution in embodiment 1, the winding device 24 in this embodiment is composed of a motor 241 and a winding reel 242, the winding reel 242 is composed of a stator wheel 2421 and a rotor wheel 2422 which are coaxially arranged, a shaft 2423 is fixed in the middle of the stator wheel 2421, a conductive slip ring stator 2424 is sleeved on the outer side wall of the shaft 2423, a conductive slip ring rotor 2425 is sleeved on the conductive slip ring stator 2424, the rotor wheel 2422 is sleeved on the conductive slip ring rotor 2425, a transmission shaft 2426 is arranged on the outer side wall of the rotor wheel 2422, and the motor 241 drives the transmission shaft 2426 to rotate. As shown in fig. 3 and 5, the motor 241 and the stator wheel 2421 are fixed on the inner sidewall of the lower housing 23 through a bracket or the like, the middle of the roller of the rotor wheel 2422 is hollow, and the shaft 2423 of the stator wheel 2421 is sleeved with the conductive slip ring and is inserted into the center of the roller of the rotor wheel 2422. The assembly gaps between rotor wheel 2422 and stator wheel 2421, stator wheel 2421 and shaft 2423 are sealed by o-rings or the like to satisfy the use of conductive slip rings under underwater conditions.

A through hole is formed in the shaft 2423, a wire outlet hole is formed in the rotor wheel 2422, and the communication cable 3 is divided into two sections at the conductive slip ring. One end of one section of communication cable 3 is connected with the control main board, and the other end is inserted into a through hole on the shaft 2423 and is connected with the conductive slip ring stator 2424. The welding mode can be selected, the communication cable 3 and the conductive slip ring stator 2424 are fixed together, and meanwhile, the gap between the communication cable 3 and the through hole of the shaft 2423 is sealed by epoxy resin glue and the like.

One end of the other end of the communication cable 3 is connected with the conductive slip ring rotor 2425, the other end of the communication cable penetrates through the wire outlet hole, winding is carried out on the outer side wall of the roller of the rotor wheel 2422, and finally the communication cable penetrates out of the wire outlet hole at the bottom of the lower shell 23 to be connected with the underwater probe 1. The welding mode can be selected, the communication cable 3 and the conductive slip ring rotor 2422 are fixed together, and meanwhile, the gap between the communication cable 3 and the wire outlet hole of the rotor wheel 2422 is sealed by epoxy resin glue and the like.

Thus, one section of the communication cable 3 is kept relatively still with the stator wheel 2421, the other section is kept relatively still with the rotor wheel 2422, the conductive slip ring realizes uninterrupted signal transmission between the two during winding, and the problem that the communication cable 3 is twisted or even broken due to relative movement of the stator wheel 2421 and the rotor wheel 2422 during winding can not occur.

The rotating shaft of the motor 241 can drive the transmission shaft 2426 to rotate through transmission modes such as belt transmission, gear transmission and the like, and the motor 241 can also be directly assembled on the transmission shaft 2426 to directly drive the transmission shaft 2426 to rotate.

Example 4

In order to further optimize the technical solution in embodiment 1, in this embodiment, the underwater probe 1 is composed of a probe housing 13 and a probe sealing cover 14, a lens 15, a camera 11 and a control circuit board 12 are sequentially fixed in the probe housing 13, a depth sensor and a temperature sensor 18 are arranged at the top of the probe sealing cover 14, a second watertight connector 16 is arranged in the middle of the top, a plug at one end of the second watertight connector 16 is connected with the communication cable 3, and the other end of the second watertight connector is connected with the control circuit board 12 through a cable. The shell 13 of the probe is provided with illuminating lamps 17, and the illuminating lamps 17 are uniformly distributed around the camera 11.

As shown in fig. 6 and 7, the probe shell 13 and the probe sealing cover 14 are hermetically assembled through a sealing ring and the like, and the communication cable 3 is connected with the underwater probe 1 through the second watertight connector 16, so that water inflow is effectively prevented. The depth sensor feeds back the depth information to the water surface positioning buoy 2, and further positions the fish school depth. The temperature sensor 18 also feeds back information such as water temperature to the client. Meanwhile, the illuminating lamp 17 can also meet the requirement of fish finding under the condition that underwater light is not ideal, and the user experience is further improved.

A lifting lug 19 is arranged on the outer side wall of the underwater probe 1, a first traction rope 31 and a second traction rope 32 are arranged on the communication cable 3, the free end of the first traction rope 31 is connected with the lifting lug 19, and a balancing weight 4 is hung at the tail end of the second traction rope 32.

As shown in fig. 8, the length of the pulling rope 31 passing through the lifting lug 19 is adjusted to match with the balancing weight 4, so that the underwater probe 1 can keep a certain angle with the horizontal plane in water for observation, and the fish can be more intuitively observed to be too small. The rotation of the water surface positioning buoy 2 can drive the underwater probe 1 to rotate, so that the fish shoal can be observed in multiple directions and multiple angles, and the size of the fish can be seen more visually.

The balancing weight 4 can effectual anchor fish finder after sinking into the bottom, can make 1 fixed position of underwater probe can not rock along with the rivers on the one hand, and on the other hand can also reduce the fluctuation range of surface of water location buoy 2 at the surface of water, can close the propeller system when the fixed point is observed and is angled the some circumstances, reaches the purpose of power saving.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More particularly, various variations and modifications are possible in the component parts and/or arrangements within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a visual fish finder that can pinpoint which characterized in that: the underwater probe consists of an underwater probe (1), a water surface positioning buoy (2) and a communication cable (3), wherein the underwater probe (1) is connected with the water surface positioning buoy (2) through the communication cable (3);

a camera (11) and a control circuit board (12) are installed inside the underwater probe (1), the camera (11) is in electric signal connection with the control circuit board (12), and the control circuit board (12) is in electric signal connection with one end of the communication cable (3); a gyroscope and an electronic compass are arranged on the control circuit board (12);

the water surface positioning buoy (2) consists of an upper shell (21), a battery pack (22), a lower shell (23), a winding device (24) and a control mainboard, wherein the upper shell (21) and the lower shell (23) are fixedly connected, a watertight containing space is formed between the upper shell and the lower shell, and the battery pack (22) is detachably assembled on the outer side wall of the water surface positioning buoy (2);

a GPS module, a wireless communication module and a control mainboard are arranged in the upper shell (21), and a microprocessor, an electronic compass and a gyroscope are arranged on the control mainboard;

propellers (26) are symmetrically distributed on the lower portion of the outer side wall of the lower shell (23), a winding device (24) is fixed inside the lower shell (23), and the other end of the communication cable (3) is in electric signal connection with the control mainboard through the winding device (24);

the battery pack (22) is in electric signal connection with the control mainboard, the GPS module, the wireless communication module and the winding device (24).

2. A visual fish finder with accurate positioning according to claim 1, characterized in that: go up casing (21) top and sunken or casing (23) bottom upwards sunken recess (211) that forms, recess (211) bottom is provided with first watertight plug connector (212), and group battery (22) bottom is provided with the socket, and the socket is pegged graft on the plug of first watertight plug connector (212) one end, and first watertight plug connector (212) other end passes through the cable and is connected with the control mainboard electricity.

3. A visual fish finder with accurate positioning according to claim 1, characterized in that: the water surface positioning buoy (2) is provided with a power switch, the power switch is electrically connected with the battery pack (22), and the power switch is a button switch or an inductive switch.

4. A visual fish finder with accurate positioning according to claim 1, characterized in that: the winding device (24) is composed of a motor (241) and a winding wheel (242), the winding wheel (242) is composed of a stator wheel (2421) and a rotor wheel (2422) which are coaxially arranged, a shaft (2423) is fixed in the middle of the stator wheel (2421), a conductive slip ring stator (2424) is sleeved on the outer side wall of the shaft (2423), a conductive slip ring rotor (2425) is sleeved on the conductive slip ring stator (2424), the rotor wheel (2422) is sleeved on the conductive slip ring rotor (2425), a transmission shaft (2426) is arranged on the outer side wall of the rotor wheel (2422), and the motor (241) drives the transmission shaft (2426) to rotate;

a through hole is formed in the shaft (2423), a wire outlet hole is formed in the rotor wheel (2422), and the communication cable (3) is divided into two sections at the conductive slip ring;

one end of one section of the communication cable (3) is connected with the control main board, and the other end of the communication cable is inserted into the through hole on the shaft (2423) and is connected with the conductive slip ring stator (2424); one end of the other end communication cable (3) is connected with the conductive slip ring rotor (2425), and the other end of the other end communication cable penetrates through the wire outlet hole and is connected with the underwater probe (1) through the rotor wheel (2422).

5. A visual fish finder with accurate positioning according to claim 1, characterized in that: the underwater probe (1) is composed of a probe shell (13) and a probe sealing cover (14), a lens (15), a camera (11) and a control circuit board (12) are sequentially fixed inside the probe shell (13), a depth sensor and a temperature sensor (18) are arranged at the top of the probe sealing cover (14), a second watertight connector (16) is arranged in the middle of the top, a plug at one end of the second watertight connector (16) is connected with a communication cable (3), and the other end of the second watertight connector is connected with the control circuit board (12) through a cable.

6. A visual fish finder with accurate positioning according to claim 1, characterized in that: the underwater probe is characterized in that a lifting lug (19) is arranged on the outer side wall of the underwater probe (1), a first traction rope (31) and a second traction rope (32) are arranged on the communication cable (3), the free end of the first traction rope (31) is connected with the lifting lug (19), and a balancing weight (4) is hung at the tail end of the second traction rope (32).

7. A visual fish finder with accurate positioning according to claim 5, characterized in that: the probe shell (13) is provided with illuminating lamps (17), and the illuminating lamps (17) are uniformly distributed around the camera (11).

8. A visual fish finder with accurate positioning according to claim 1, characterized in that: the propellers (26) are arranged in 2-6 numbers and are arranged on the same circumference.

9. A visual fish finder with accurate positioning according to claim 1, characterized in that: go up casing (21) top and be provided with pilot lamp, WIFI antenna, lower casing (23) bottom is provided with the luring fish lamp.

10. The utility model provides a visual fish finding system that can pinpoint which characterized in that: comprising a mobile terminal and a fish finder as claimed in any of claims 1 to 7, the mobile terminal being in signal connection with the wireless communication module.