A popular science device for the hazards of rip currents

Abstract

The present invention belongs to the field of popular science of marine safety, and specifically is a popular science device for the hazards of rip currents. It includes a wave-making function module, which generates waves; a plurality of shore shape modules, which simulate the shape of the coast and the waves to generate rip currents; a dye liquid flow display system, which dyes the rip currents; a flow rate monitoring system, which is used to monitor the flow rate of the rip current. When the flow rate monitoring system detects that the flow rate reaches a threshold, it sends a signal to the dye liquid flow display system, so that the dye liquid flows out to realize the dye liquid flow display; a water circulation system, which recycles the dyed rip currents and purifies the dyed rip currents into colorless water. The present invention fills the gap of no popular science device in terms of warning of coastal safety caused by rip currents.

Description

Technical Field

[0001] The invention belongs to the field of marine safety science popularization, and in particular is a science popularization device for the hazards of rip currents. Background Art

[0002] Rip currents, also known as rip currents, are narrow currents that move rapidly away from the coast in the surf zone under the combined effects of waves and shoal topography. The sea surface in the area where rip currents occur is generally calm and very confusing. The location and characteristics of rip currents vary depending on the angle of wave incidence and coastal topography, and the location, position and duration of rip currents are highly uncertain. When rip currents occur, they can quickly carry unsuspecting swimmers away from the shoals and into the deep sea. Even good swimmers cannot avoid them, and may even cause drowning accidents. The confusing, uncertain and irresistible nature of rip currents makes them an invisible killer on the beach and a major source of danger for coastal tourists. Their existence has seriously threatened the lives of coastal tourists. According to statistics, about 80% to 90% of seaside rescues are related to rip currents, and 70% to 80% of accidental deaths at the seaside are related to rip currents. Globally, rip currents cause hundreds of drowning deaths and put tens of thousands of people in danger every year. Although rip current warning signs have been set up in some standardized bathing beaches, most people still know little about rip currents, and encountering rip current hazards at unknown beaches often occurs. Therefore, popularizing knowledge about rip current disasters to the public, such as how to identify rip currents, the flow characteristics of rip currents, which places are prone to rip currents, how to save oneself in rip currents, how to strengthen seaside tourism safety, etc., is of great significance for enhancing the public's safety awareness and ensuring personal safety. This is the original intention of the design of a popular science device for rip current hazards involved in the present invention. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a popular science device for the hazards of rip currents.

[0004] The present invention adopts the following technical scheme: a popular science device for the hazards of rip currents, including a wave-making function module, which generates waves; a plurality of shore shape modules, which simulate the shape of the coast and generate rip currents together with the waves; a dye liquid flow display system, which dyes the rip currents; a flow rate monitoring system, which is used to monitor the flow rate of the rip currents. When the flow rate monitoring system detects that the flow rate reaches a threshold, it sends a signal to the dye liquid flow display system, thereby causing the dye liquid to flow out and realizing the dye liquid flow display; a water circulation system, which recycles the dyed rip currents and purifies the dyed rip currents into colorless water.

[0005] In some embodiments, the shore module is a structure including one or more fan-shaped surfaces.

[0006] In some embodiments, the wave-making function module includes a piston, a transmission rod, a motor transmission shaft, a connecting rod, a support column, a fixing ring and a bottom plate, wherein the piston and the transmission rod are an integrated structure; the lower end of the transmission rod is connected to one end of the connecting rod, and the other end of the connecting rod is installed on the left end of the motor transmission shaft; the right end of the motor transmission shaft is installed on the fixing ring, which is hinged to the support column and connected to the bottom plate; the piston is a truncated cone with a calibrated angle between the main line and the axis, and the side of the cone should form a matching relationship with the groove at the bottom of the conical ring surface; the grooves on the two support columns are equipped with servo motors, and the transmission end of the servo motor is connected to the motor transmission shaft; when the controlled motor rotates, the motor transmission shaft will drive the transmission rod to reciprocate up and down, and the piston will also repeatedly beat the water surface with the transmission rod to achieve wave making. The use of a servo motor is conducive to controlling parameters such as wave making amplitude and frequency.

[0007] In some embodiments, the dye liquid flow display system includes a paint nozzle installed in front of the shore module, the paint nozzle is connected to a dye liquid pumping device disposed in the paint box through a four-way pipe, and the dye liquid pumping device receives a signal sent by a flow rate monitoring system.

[0008] In some embodiments, the flow rate monitoring system includes a pipeline inlet, a flow rate monitoring screen and a flow meter; the flow meter and the flow rate monitoring screen are respectively connected to the pipeline inlet thread, and the pipeline inlet faces the offshore current; the flow meter starts timing when it contacts the impact of water, the cross-section inside the pipe is calibrated, and the pipe wall is provided with multiple smaller volume threshold lines, and each time the volume flow reaches a tiny threshold, the flow meter will record its time information, the tiny volume flow, cross-sectional area and time are all known, the flow meter can calculate the approximate instantaneous velocity of the fluid, and the specific value is displayed by the flow rate monitoring screen.

[0009] Alternatively, the flow rate monitoring system includes a horizontal limit device, a weighing platform, a force transmission device and a microprocessor. The weighing platform is installed facing the incoming flow. The water flow impacts the weighing platform, exerting force on it. The force is transmitted through the force transmission device, and the force transmission device undergoes elastic deformation, causing the excitation voltage to change, outputting a changing analog signal. The force signal is converted into an electrical signal through the microprocessor, and the electrical signal is amplified and filtered. Finally, it is converted into digital information through the built-in A / D processor, and the flow rate data is transmitted. The horizontal limit device ensures that it is impacted by the frontal incoming flow, does not affect the overall flow, and eliminates the impact of the lateral incoming flow.

[0010] Alternatively, the flow velocity monitoring system includes a propeller and a motor, which are installed in a mechanism frame and placed in the direction of the offshore current. The water flow impacts the propeller, which rotates accordingly, generating a tiny current in the motor. The flow velocity is obtained by the magnitude of the current, and the numerical value is obtained by amplifying the value of the tiny current or by calibrating the functional relationship between the propeller speed and the flow velocity.

[0011] In some embodiments, the water circulation system includes an annular water outlet, a water tank, a water purifier and a water pump. A water inlet and a water outlet channel are arranged on the water tank. A water purifier and a water pump are arranged in the water tank. The water outlet channel is connected to the annular water outlet. An annular water outlet is arranged on the annular water outlet. The reflux water and dyeing liquid enter the water inlet, the dyeing liquid and water are separated by the water purifier, and after separation, they are pumped out of the annular water outlet by the water pump.

[0012] In some embodiments, an escape and rescue system is also included, which includes a puppet that can be controlled by the audience and an escape and rescue track.

[0013] In some embodiments, an alarm device is also included. The alarm device connects the circuit to the flow rate monitoring system to detect the speed and direction of the location where the offshore current may occur in the shore shape modules of different offshore currents. Once the flow rate monitoring system detects that the flow rate exceeds the threshold for the formation of the offshore current, the circuit switch of the flow rate monitoring system connected to the alarm device automatically opens and transmits current, that is, a red flash warning is automatically issued. The flash indicates that an offshore current has occurred, thereby realizing the alarm function.

[0014] In some embodiments, it also includes a ring-shaped display screen, which plays popular science videos and warning videos about rip currents, including but not limited to how to identify rip currents, the flow characteristics of rip currents, which places are prone to rip currents, how to save oneself in rip currents, and how to enhance seaside tourism safety.

[0015] In some embodiments, the shore module, wave-making function module, dye liquid flow display system, escape and rescue system, flow rate monitoring system, water circulation system and alarm device are all arranged on a base box, the upper part of the base box is a circular platform with a low middle and high periphery, the wave-making function module and the water circulation system are arranged at the lowest central position of the circular platform, a circle of funnel-shaped partitions are installed around the wave-making function module, and the wave-making function module is placed in the circular hole of the funnel-shaped partition; the multiple shore modules are arranged around the wave-making function module, and the multiple shore modules form a closed annular cone with a larger taper, and the wave-making function module is located at the center of the cone; the dye liquid flow display system is arranged between the shore module and the wave-making function module, close to the shore module; the flow rate monitoring system and the alarm device are both located near the shore shape where the offshore current is generated, which is convenient for determining whether the offshore current is generated and the offshore current intensity, and is conducive to conveying to the audience the information that the offshore current is dangerous here.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In terms of warning of coastal safety caused by rip currents, it fills the gap of lack of popular science devices;

[0018] 2. The device has a rich scientific and educational approach: it can not only show the hydrodynamic process of rip currents, but also allow visitors to experience the difficulty of different escape routes through puppets, and gain a comprehensive understanding of rip currents through popular science videos;

[0019] 3. The shore modules that generate different offshore currents in the device are replaceable, and can be designed according to user needs and combined arbitrarily;

[0020] 4. It has strong adaptability to the site and can be designed according to the site conditions. Circular, rectangular, fan-shaped, etc. are all possible;

[0021] 5. In terms of flow rate monitoring, multiple methods are used to measure the flow rate, which can more accurately measure the size of the flow rate, facilitate intuitively feeling the flow rate conditions generated by the rip current, and enable viewers to better understand the process of rip current formation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The three-dimensional Figure 1 ;

[0023] Figure 2 The three-dimensional Figure 2 ;

[0024] Figure 3 It is a schematic diagram of a first flow rate monitoring system of the device of the present invention;

[0025] Figure 4 Schematic diagram I of a second flow rate monitoring system of the device of the present invention;

[0026] Figure 5 Schematic diagram II of a second flow rate monitoring system of the device of the present invention;

[0027] Figure 6 A schematic diagram of a third flow rate monitoring system of the device of the present invention;

[0028] Figure 7 It is a wave-making functional module of the device of the present invention;

[0029] Figure 8 A water circulation device for the device of the present invention;

[0030] Fig. 9 It is an escape and rescue module of the device of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] The present invention provides a popular science device for the hazards of offshore currents, which is composed of a base box, an alarm system, a partition, a wave-making function module, a column bracket, an annular display screen system, a shore shape module for generating different offshore currents, a paint nozzle, a paint box, a flow rate monitoring device, and the like. The wave-making function module is fixed to the upper part of the box, and a circle of funnel-shaped partitions are arranged around the wave-making function module. The wave-making function module can be placed in the circular hole of the funnel-shaped partition. A coast model is arranged above the partition, and the coast models are 120° apart from each other. An alarm system is respectively installed on the box shell at the corresponding position of each of the shore shapes, and a paint box is installed on the lower surface of the shore shape module for generating different offshore currents. The column bracket is fixed to the top shell of the wave-making function module, and the annular display screen system is fixed to the upper end of the column bracket.

[0033] like Figure 1 As shown, a popular science device for the hazards of rip currents includes a wave-making function module 2, which generates waves; a plurality of shore shape modules 1, which simulate the shape of the coast and generate rip currents together with the waves; a dye liquid flow display system 3, which dyes the rip current; a flow rate monitoring system 5, which is used to monitor the flow rate of the rip current, and when the flow rate monitoring system 5 detects that the flow rate reaches a threshold, a signal is sent to the dye liquid flow display system 3 to make the dye liquid flow out, thereby realizing the dye liquid flow display; a water circulation system 6, which recovers the dyed rip current and purifies the dyed rip current into colorless water.

[0034] The invention is placed on a stable ground, connected to a power source, and the device is started through an external control system. The wave-making function module starts to work. The wave-making function module can be controlled by an external control system to change the wave frequency, wave amplitude, etc. The generated waves flow to the coast model. A flow velocity meter is installed on the set shore surface. When the set value is reached, the control system can determine that an offshore current has occurred here. The control system controls the paint nozzle here to spray environmentally friendly paint, and the alarm system prompts that an offshore current has occurred here. The public watching around the device can place human-shaped dolls to feel the offshore current phenomenon more intuitively. The circular display system plays in a loop, including but not limited to knowledge about offshore currents and warning videos. The box body and the space formed by the box body and the partition can be opened to repair the device and replenish paint, etc.

[0035] Replace the module that generates rip currents. There are many different types of terrain that can generate rip currents. You can create more different types of rip current modules and replace the original three rip current modules.

[0036] The arrangement of making waves while watching at the same time (no longer a ring, the wave-making and electronic screen are placed on one side (probably the wall), the observation position is on the other side, and the shore-shaped module is no longer fan-shaped but has become rectangular).

[0037] like Figure 7 As shown, the wave-making function module 2 includes a piston 201, a transmission rod 202, a motor transmission shaft 203, a connecting rod 204, a support column 205, a fixing ring 206 and a bottom plate 207. The piston 201 and the transmission rod 202 are an integrated structure; the lower end of the transmission rod 202 is connected to one end of the connecting rod 204, and the other end of the connecting rod 204 is installed on the left end of the motor transmission shaft 203; the right end of the motor transmission shaft 203 is installed on the fixing ring 203, and the fixing ring 206 is connected to the support column 205 It is hinged and connected to the base plate 207; the piston 201 is a truncated cone with a generatrix and an axis at a calibrated angle, and the side surface of the cone should form a matching relationship with the groove at the bottom of the conical ring surface; the grooves on the two support columns 205 are equipped with servo motors, and the driving end of the servo motor is connected to the motor drive shaft 203; when the controlled motor rotates, the motor drive shaft 203 will drive the drive rod 202 to reciprocate up and down, and the piston 201 will also repeatedly hit the water surface with the drive rod 202 to achieve wave generation.

[0038] The flow rate monitoring system adopted by the present invention includes the following three structures.

[0039] like Figure 3 As shown, the flow rate monitoring system 5 includes a pipeline inlet 501, a flow rate monitoring screen 502 and a flow meter 503; the flow meter 503 and the flow rate monitoring screen 502 are respectively connected to the pipeline inlet 501 by threaded cooperation, and the pipeline inlet 501 faces the offshore current; the flow meter 503 starts timing when it contacts the impact of water, the cross section inside the pipe is calibrated, and a plurality of smaller volume threshold lines are provided on the pipe wall, and the flow meter will record its time information every time the volume flow reaches a tiny threshold, and the tiny volume flow, cross-sectional area and time are all known, and the flow meter can calculate the approximate instantaneous velocity of the fluid, and the specific value is displayed by the flow rate monitoring screen 502;

[0040] like Figure 4 , 5As shown, or the flow rate monitoring system 5 includes a horizontal limit device 504, a weighing platform 505, a force transmission device 506 and a microprocessor 507. The weighing platform 505 is installed facing the incoming flow. The water flow impacts the weighing platform 505, exerting a force on it. The force is transmitted through the force transmission device 506, and the force transmission device 506 undergoes elastic deformation, so that the excitation voltage changes, and a changing analog signal is output. The force signal is converted into an electrical signal through the microprocessor 507, and the electrical signal is amplified and filtered. Finally, it is converted into digital information through the built-in A / D processor, and the flow rate data is transmitted. It is ensured that it is impacted by the front incoming flow through the horizontal limit device 504, and will not affect the overall flow, and eliminate the impact of the lateral incoming flow;

[0041] like Figure 6 As shown, the flow rate monitoring system 5 includes a propeller 508 and a motor 509, which are installed in a mechanism frame and placed in the offshore current direction. The water flow impacts the propeller 508, and the propeller 508 rotates accordingly, during which a small current is generated in the motor 509. The flow rate is obtained by the magnitude of the current, and the numerical value is obtained by amplifying the value of the small current or by calibrating the functional relationship between the propeller speed and the flow rate.

[0042] like Figure 8 As shown, the water circulation system 6 includes an annular water outlet 601, a water tank 604, a water purifier 605 and a water pump 606. A water inlet 603 and a water outlet channel 607 are arranged on the water tank 604. The water purifier 605 and the water pump 606 are arranged in the water tank 604. The water outlet channel 607 is connected to the annular water outlet 601. The annular water outlet 601 is provided with an annular water outlet 602. The refluxed water and dyeing liquid enter the water inlet 603, the dyeing liquid and water are separated by the water purifier 605, and after separation, they are pumped out of the annular water outlet 601 by the water pump 606.

[0043] The control system of the entire device is installed outside the device, and the control circuits of the wave-making function module, display screen, alarm system, and paint nozzle are connected to the control system.

[0044] The control circuits of the wave-making function module, the display screen, the alarm system, and the paint nozzle pass through the box and are connected to the control system.

[0045] The control device of the wave-making function module is installed in the box.

[0046] The annular display screen system loops and plays videos including but not limited to popular science videos and warning videos about rip currents.

[0047] The circuit of the annular display screen system passes through the interior of the column bracket and enters the box body, and is connected to the outside together with the circuit of the control device of the wave-making device.

[0048] The surface of the coast model is equipped with a flow velocity measuring device.

[0049] The alarm system circuit passes through the box body and is connected to the external control system of the entire device together with the wave-making function module and the display screen circuit. When an offshore current occurs near the shore-shaped module that generates different offshore currents, the alarm system at the corresponding location will sound an alarm to indicate that an offshore current has occurred there.

[0050] The escape and rescue module is installed on the shore. Fig. 9 As shown, the escape and rescue system 4 includes a puppet 401 that can be controlled by the audience and an escape and rescue track 402. The audience can control the puppet to escape from different tracks through a rigid rope and experience the difficulties brought by different escape routes.

[0051] The invention provides a popular science device for the hazards of rip currents. The whole device is annular, and the public can watch and learn around it, which allows more people to watch. The rip current phenomenon is demonstrated to the public in many aspects through a display screen, an alarm system, paint and a human-shaped doll. By arranging shore modules that generate different rip currents, three common different rip current phenomena are demonstrated, which is convenient for demonstration and saves space. The box can be opened, which provides convenience for repairing the device and replenishing paint. The partition and the box separate the control circuit from the water above, ensuring safety during the demonstration. A control system of the whole device is arranged outside the device to control the whole device. The wave-making function module can simulate sea waves, and the relevant parameters such as wave frequency and amplitude can be changed by the control system, thereby simulating various sea waves under different sea conditions. The paint used in the paint box is an environmentally friendly paint. The human-shaped doll arranged in the invention is attractive to young viewers and is also easy to understand. The invention judges the occurrence of rip currents by the difference of the flow velocity measuring device on the shore surface, and the measurement is more accurate and sensitive. The present invention enables the public to understand the knowledge about the rip current phenomenon conveniently, safely and from multiple angles through multiple aspects of arrangement, thereby improving the public's safety awareness and achieving a good effect of popularizing science.

[0052] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A popular science device for the hazards of rip currents, characterized by: It comprises a wave-making function module (2), and the wave-making function module (2) generates waves; A plurality of shore shape modules (1), wherein the shore shape module (1) simulates the shape of the shore and generates rip currents together with waves; A dye liquid flow display system (3), the dye liquid flow display system (3) dyes the offshore current; A flow rate monitoring system (5), the flow rate monitoring system (5) is used to monitor the flow rate of the offshore current. When the flow rate monitoring system (5) detects that the flow rate reaches a threshold value, a signal is sent to the dye liquid flow display system (3) to make the dye liquid flow out, thereby realizing the dye liquid flow display; a water circulation system (6) for recovering the dyed rip current and purifying the dyed rip current into colorless water; The wave-making function module (2) comprises a piston (201), a transmission rod (202), a motor transmission shaft (203), a connecting rod (204), a support column (205), a fixing ring (206) and a bottom plate (207); the piston (201) and the transmission rod (202) are an integrated structure; the lower end of the transmission rod (202) is connected to one end of the connecting rod (204), and the other end of the connecting rod (204) is mounted on the left end of the motor transmission shaft (203); the right end of the motor transmission shaft (203) is mounted on the fixing ring (206), and the fixing ring (206) is ) is hinged to the support column (205) and connected to the bottom plate (207); the piston (201) is a truncated cone with a generatrix and an axis at a calibrated angle, and the side of the cone should form a matching relationship with the groove at the bottom of the conical ring surface; a servo motor is installed in the grooves on the two support columns (205), and the drive end of the servo motor is connected to the motor drive shaft (203); when the controlled motor rotates, the motor drive shaft (203) will drive the drive rod (202) to reciprocate up and down, and the piston (201) will also repeatedly hit the water surface along with the drive rod (202) to achieve wave generation; The dye liquid flow display system (3) comprises a dye nozzle (301) installed in front of the bank module (1); the dye nozzle (301) is connected to a dye liquid pumping device (303) arranged in a dye box (302) via a four-way pipe (304); the dye liquid pumping device (303) receives a signal sent by a flow rate monitoring system (5); The flow rate monitoring system (5) comprises a pipeline inlet (501), a flow rate monitoring screen (502) and a flow meter (503); the flow meter (503) and the flow rate monitoring screen (502) are respectively threadedly connected to the pipeline inlet (501), and the pipeline inlet (501) faces the offshore current; the flow meter (503) starts timing when it contacts the impact of water, the cross section inside the pipe is calibrated, and a plurality of smaller volume threshold lines are provided on the pipe wall, and the flow meter records the time information every time the volume flow reaches a tiny threshold, and the tiny volume flow, cross-sectional area and time are all known, and the flow meter can calculate the approximate instantaneous velocity of the fluid, and the specific value is displayed by the flow rate monitoring screen (502); Alternatively, the flow rate monitoring system (5) comprises a horizontal limit device (504), a weighing platform (505), a force transmission device (506) and a microprocessor (507), wherein the weighing platform (505) is installed facing the incoming flow, and the water flow impacts the weighing platform (505), generating a force on the weighing platform, which is then transmitted through the force transmission device (506), causing the force transmission device (506) to undergo elastic deformation, causing the excitation voltage to change, and outputting a changed analog signal, which is then converted into an electrical signal through the microprocessor (507), amplified and filtered, and finally converted into digital information through a built-in A / D processor, and the flow rate data is transmitted, and the horizontal limit device (504) ensures that the weighing platform is impacted by the incoming flow from the front, does not affect the overall flow, and eliminates the impact of the lateral incoming flow; Alternatively, the flow rate monitoring system (5) comprises a propeller (508) and a motor (509), wherein the propeller (508) and the motor (509) are installed in a mechanism frame, which is placed in the direction of the offshore current. The water flow impacts the propeller (508), and the propeller (508) rotates accordingly, during which a small current is generated in the motor (509). The magnitude of the flow rate is obtained by the magnitude of the current, and the numerical value is obtained by amplifying the value of the small current or by calibrating the functional relationship between the propeller rotation speed and the flow rate; The water circulation system (6) comprises an annular water outlet (601), a water tank (604), a water purifier (605) and a water pump (606); a water inlet (603) and a water outlet channel (607) are arranged on the water tank (604); the water purifier (605) and the water pump (606) are arranged in the water tank (604); the water outlet channel (607) is connected to the annular water outlet (601); an annular water outlet (602) is arranged on the annular water outlet (601); the refluxed water and dyeing liquid enter the water inlet (603); the dyeing liquid and water are separated by the water purifier (605); and after separation, they are pumped out of the annular water outlet (601) by the water pump (606).

2. The popular science device for the hazards of rip currents according to claim 1, characterized in that: The shore module (1) is a structure comprising one or more fan-shaped surfaces.

3. The popular science device for the hazards of rip currents according to claim 1, characterized in that: It also includes an escape and rescue system (4), which includes a puppet (401) that can be controlled by the audience and an escape and rescue track (402).

4. The popular science device for the hazards of rip currents according to claim 3, characterized in that: It also includes an alarm device (8), which is connected to the circuit of the flow rate monitoring system (5) to detect the speed and flow direction of the shore module (1) of different offshore currents at the location where the offshore current may occur. Once the flow rate monitoring system (5) detects that the flow rate exceeds the threshold value of the offshore current, the circuit switch of the flow rate monitoring system (5) connected to the alarm device (8) automatically opens and transmits current, that is, automatically issues a flash warning, and the flash prompts that the offshore current has occurred, thereby realizing the alarm function.

5. The popular science device for the hazards of rip currents according to claim 4, characterized in that: The device also includes a circular display screen (11), which plays popular science videos and warning videos about rip currents, including how to identify rip currents, the flow characteristics of rip currents, where rip currents are likely to occur, how to save oneself in rip currents, and how to enhance seaside tourism safety.

6. The popular science device for the hazards of rip currents according to claim 5, characterized in that: The bank module (1), the wave-making function module (2), the dye liquid flow display system (3), the escape and rescue system (4), the flow rate monitoring system (5), the water circulation system (6) and the alarm device (8) are all arranged on a base box (7); the upper part of the base box (7) is a circular platform with a lower middle and a higher periphery; the wave-making function module (2) and the water circulation system (6) are arranged at the lowest position in the center of the circular platform; a circle of funnel-shaped baffles (9) are arranged around the wave-making function module (2); and the wave-making function module (2) is placed in a circular hole of the funnel-shaped baffle (9); The plurality of shore modules (1) are arranged around the wave-making function module (2), the plurality of shore modules (1) forming a closed annular cone with a small slope, and the wave-making function module (2) is located at the center of the cone; the dye liquid flow display system (3) is arranged between the shore module (1) and the wave-making function module (2) and at a position close to the shore module (1); the flow rate monitoring system (5) and the alarm device (8) are both located near the shore current, so as to facilitate the determination of whether the shore current is generated and the display of the shore current intensity, and facilitate the transmission of dangerous information of the shore current generated here to the audience.

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