SWIMMING AND DIVING AID WITH A CAMERA

Description

[0001] The invention relates to a swimming and diving aid with a hull which has a flow channel or to which a flow channel is assigned, wherein a motor-driven water acceleration arrangement, in particular a propeller, is assigned to the flow channel, with a support surface for an upper body on an upper side of the hull, with handles attached to the swimming and diving aid, wherein operating elements for controlling the water acceleration arrangement by means of an associated motor control are provided on the handles, and with a display facing the support surface for displaying operating parameters of the swimming and diving aid.

[0002] Such a watercraft, used particularly in the recreational sector as a diving sled, is known from DE 10 2004 049 615 A1. It features a handle arrangement that a user can hold onto while resting a portion of their upper body on the top of the watercraft's hull. A flow channel is arranged within the hull, housing a propeller. The propeller is driven by an electric motor powered by a battery.

[0003] In order to operate these watercraft both underwater and on the water, precise weight balancing is required. Accordingly, the watercraft should develop enough buoyancy to ensure it is sufficiently floatable and therefore cannot sink. However, the buoyancy should not be too strong so that it can quickly switch from surface to submerged. Due to the weight of the electrical components, the watercraft must have a sufficiently large buoyancy body in the hull, which influences the overall size and thus the driving dynamics of the watercraft. Furthermore, flooding compartments can be provided within the hull; these fill with water and ensure optimal weight balancing during operation. For transport out of the water, the flooding compartments are emptied so that the watercraft has a low dead weight.

[0004] The arrangement of the various components of the vessel is designed to ensure that the vessel remains stable and upside down in the water, both with and without a user on board. The mass distribution is such that the vessel lies upright in the water without heeling. The mass distribution is preferably symmetrical to a plane of symmetry between the starboard and port sides of the vessel, running from the bow to the stern.

[0005] The vessel's exterior shape ensures low flow resistance, thus minimizing energy consumption. The vessel's weight is designed to be portable.

[0006] A mounting system with a receiving sleeve for a video camera is known from US Pat. No. 6,115,060. The receiving sleeve is closed off in the direction of view of the camera by a transparent cover or an optical element. A hole is made in a boat's hull, to which a socket is attached. The socket has a sleeve with an external thread and a circumferential flange at one end. It is inserted through the hole in the boat hull so that the circumferential flange rests against the hull from the outside. From the inside of the hull, a flange element with an internal thread is screwed onto the external thread of the sleeve so that the edge of the hole is clamped and sealed between the external and internal flanges. The receiving sleeve with the camera is inserted into the sleeve of the socket and sealed all the way around with sealing rings.A cover cap is screwed onto the external thread of the sleeve at the end, which axially secures the receiving sleeve. The disadvantage of the attachment of the video camera to a boat hull as shown in US 6,115,060 is that the camera can only be aligned in the direction of the surface normal of the hull in the area of ​​the intended opening. To enable a different viewing direction, additional optical elements such as prisms are required, or the camera must be arranged so that it can move within the receiving sleeve, for example using a housing with a complex rotatable mount. Since there are usually no surface areas of the hull aligned in the direction of travel, especially in the area of ​​the bow of watercraft, forward-looking video recordings are only possible using such cost-intensive optical elements or movable housing components.To ensure smooth video recordings, the boat hull must also have sufficient flexural rigidity in the area of ​​the penetration to avoid vibrations. This is not guaranteed, especially for portable watercraft with thin hull walls and high propulsion power. A further disadvantage is that the hull must be flat in the area of ​​the penetration to enable watertight installation of the holding system using the flange and the screwed-on flange element. In aerodynamically optimized watercraft, which are also designed for diving, such flat surfaces are not available, particularly in the area of ​​the bow of the watercraft, so that front-facing installation of the video camera is not possible.

[0007] A self-propelled watercraft, particularly for sea rescue, is known from WO 2015 / 034382 A1. The watercraft is U-shaped, with an electrically operated drive turbine arranged in each leg designed as a float. The turbines are pivotally mounted. The watercraft can thus rest on the water with either of its two surfaces, with the turbines pivoting towards the water inlets facing the water, sucking in water from there and expelling it again at the end of the legs. Handles are arranged on the sides of the legs, which a person can hold on to. The watercraft can be controlled via a remote control. Cameras, which are not described in more detail, can be assigned to the watercraft and send signals to a control center. WO 2012 / 089951 shows a diving aid with a (digital) camera attached to the diving aid via a pivoting frame.This is aligned with the bottom of the body of water and serves to record the habitat there. Lasers are mounted on the frame to determine the distance to the bottom. Also shown is a trigger unit that enables automatic photography at a predetermined time or at regular intervals. The frame with the mounted camera significantly increases the flow resistance of the diving aid and is only suitable for slow dives.

[0008] US59195256A shows another diving aid with a front camera.

[0009] The object of the invention is to provide a swimming and diving aid of the type mentioned at the outset, which enables video recordings to be made in the direction of travel with low flow resistance of the swimming and diving aid and simple operation.

[0010] The object of the invention is achieved by a swimming and diving aid according to claim 1. The object of the invention is achieved in particular in that a front camera facing forward is integrated into the hull in front of the support surface in the direction of travel and is connected to control electronics, that the control electronics are designed to control the front camera and to receive the camera signals, and that a switching element for starting and ending a video recording is arranged on at least one handle. The front camera enables the creation of video recordings in the direction of travel of the swimming and diving aid. It is aligned in the line of sight of a driver of the swimming and diving aid, so that it advantageously records the image sections that a driver with the swimming and diving aid is turning towards.The alignment of the front camera in the direction of travel and in front of the driver's support surface is made possible by the integration of the front camera into the hull of the swimming and diving aid. The integration is carried out in such a way that the external shape of the hull in the area of ​​the front camera is at least largely retained. The front camera can be arranged in hull areas with small radii of the hull outer contour, as is primarily the case in the aerodynamically optimized bow area of ​​the swimming and diving aid. No camera parts or holders for the front camera are arranged outside the hull. The flow resistance of the swimming and diving aid is therefore not affected by the front camera. The switch element attached to the handle for starting and stopping video recordings enables simple, safe and intuitive operation of the front camera, even during sporty driving.

[0011] Photographs of the rider (selfie) of this swimming and diving aid, which is primarily used in recreational settings, can be made possible by installing a rear-facing rear camera in front of the support surface and connecting it to the control electronics. Advantageously, the rear camera is controlled and the video signals sent by the rear camera are captured by the same control electronics to which the front camera is connected. This enables a simple and cost-effective setup of the video system, which consists of two differently oriented cameras.

[0012] A simple and easy-to-use selection of the camera to be activated can be made possible by arranging a switching element on at least one handlebar for switching between the two cameras used for video recording. The switching element, like the switching element, is located on a handlebar of the swimming and diving aid and is thus easily accessible for a driver. Advantageously, the switching element is mounted on one handlebar and the switching element is mounted on the other handlebar of the swimming and diving aid.

[0013] To enable monitoring of the currently recorded video, the display can be connected to the camera control electronics and configured to display the recording made with the currently selected camera. Advantageously, the control electronics and the display also enable playback of previously recorded video sequences, allowing them to be rated and deleted, for example, to free up storage space for further video recordings.

[0014] If an LCD display, rear camera, and control electronics are to be housed in a waterproof, one-piece or two-piece housing, the components can be correctly aligned and arranged in a shock-proof manner. In a two-piece design, the housing components can preferably be connected to each other in a waterproof manner. The waterproof design prevents water from entering the housing(s) from the outside or from a flood chamber of the buoyancy and diving aid. Integrating the components in a one-piece or two-piece housing enables short and therefore low-interference electrical connections between the components.

[0015] Viewing video recordings and recording videos with the rear camera can be enabled by covering the waterproof housing with a transparent display cover, at least in the area of ​​the LCD display or in the area of ​​the LCD display and the rear camera. The display cover provides mechanical protection for the LCD display and the rear camera and also prevents water from penetrating the housing.

[0016] According to a preferred embodiment of the invention, it can be provided that the control electronics are connected to the motor controller via a data bus, that the switching signals of the switching element and / or the switching element are fed to the motor controller, and that the control electronics are designed to query the switching signals of the switching element and / or the switching element from the motor controller. The switching element and the switching element can thus be assigned dual functions by being used, depending on the menu selection, for example, to set operating parameters for controlling the drive motor or for controlling video recordings. This achieves a high level of reliability because the motor controller can still be controlled via the switching element or the switching element even if the control electronics of the video system fails.

[0017] In order to prevent accidental starting of a video recording, for example during transport or storage of the swimming and diving aid out of the water, it can be provided that the control unit is designed to enable a video recording when a voltage is applied to an electric motor of the water acceleration arrangement and to disable a video recording when no voltage is applied to the electric motor of the water acceleration arrangement. To determine whether a voltage is applied to the electric motor, the power level set on the motor control can be queried, for example. The swimming and diving aid advantageously has a device with which a drive of the swimming and diving aid is prevented even when the electric motor is rotating. This can be achieved, for example, by mechanically decoupling the electric motor from the propeller.

[0018] In order to avoid video recordings that are shortened due to storage space problems, it can be provided that the control unit is designed to enable a video recording if a free storage capacity of a memory for the video recordings corresponds to a predetermined limit or exceeds the predetermined limit and to not enable a video recording if the free storage capacity of the memory for the video recordings falls below the predetermined limit and / or that the control unit is designed to interrupt a video recording if the free storage capacity of the memory for the video recordings falls below a predetermined second limit. The two limit values ​​can be selected to be the same. It can advantageously be provided that the limit corresponds to a higher storage capacity than the second limit.A video recording can only be started if the storage capacity allows for a sufficiently long recording time. An ongoing video recording can be aborted if the storage capacity has reached a lower limit required for the video system to function.

[0019] A preferred embodiment of the invention provides that the control unit has a radio interface, in particular a Wi-Fi interface / WLAN interface and / or a Bluetooth interface, and that the control unit is designed to transmit video data via the radio interface and / or to receive software updates for all hardware components of the swimming and diving aid, for example the control of the cameras and / or for the control of the display and / or for the motor control and / or for the battery management (battery control). Video data can thus be easily transferred to an external storage device, for example a smartphone, a laptop or a PC. The software of the video system can be adapted to new developments. The transfer of software updates for the motor control enables additional functionality of the swimming and diving aid.For example, the driving characteristics of the swimming and diving aid can be adapted or individually adjusted to the preferences of a driver, or newly developed software sequences for the engine control can be transferred.

[0020] To enable audio recordings, a microphone can be assigned to the front camera and / or the rear camera, and the recorded audio signals can be fed to the control unit. The audio signals are then recorded along with the video signals from the active camera. A cost-effective approach is to assign a microphone to only one camera. This microphone can, for example, record audio signals regardless of which camera is currently active.

[0021] Error-free data transmission from the front camera to the control electronics can be ensured by connecting the front camera to the control unit via a digital interface, in particular a USB interface, and a data cable.

[0022] In order to enable error-free data transmission from the rear camera to the control unit, it can be provided that the rear camera is connected to the control unit via a digital interface, in particular a MIPI interface.

[0023] A simple and secure attachment of the front camera with a forward-facing viewing angle relative to the direction of travel of the swimming and diving aid can be made possible by arranging the front camera in a watertight camera housing, by accommodating the watertight camera housing in a front camera receptacle within the hull and attaching it to the hull of the swimming and diving aid, by having the hull outer shell in the direction of view of the front camera a camera feedthrough in which a transparent pane is arranged, and by having the transparent pane close off the watertight camera housing at the front.

[0024] Particularly preferably, it can be provided that the front camera recording is spatially connected to a flooding chamber of the swimming and diving aid. The flooding chamber of the swimming and diving aid is connected to the surrounding water via water inlet and outlet openings. It is flooded with water when the swimming and diving aid is in operation. This allows the buoyancy of the swimming and diving aid to be precisely adjusted. Electrical components of the swimming and diving aid, for example the electric motor, necessary batteries or the motor control, can be arranged in a sealed manner in the flooding chamber. The heat lost from the electrical components is thus effectively dissipated. On land, the water flows out of the flooding chamber through the water inlet and outlet openings, so that the weight of the swimming and diving aid is significantly reduced.The watertight design of the camera housing allows it to be positioned in the front camera mount connected to the flooding chamber and be surrounded by water during swimming and diving operations. A separate seal for the front camera mount, both externally and internally to the flooding chamber, is therefore unnecessary. This allows for a simple construction of the buoyancy and diving aid's hull.

[0025] Advantageously, the transparent pane or a pane housing in which the transparent pane is held can be sealed off from the camera feedthrough, or a water-permeable gap can be formed between the transparent pane or the pane housing in which the transparent pane is held and the camera feedthrough. Sealing prevents water from flowing into the hull in the area of ​​the camera feedthrough. Furthermore, the transparent pane or pane housing can be firmly connected to the hull by the seal, thereby increasing the stability of the camera mount. If the transparent pane or pane housing is not connected to the camera feedthrough in a watertight manner, the structure is easy to assemble.Such an arrangement is particularly useful when the front camera is housed in a waterproof camera housing and the front camera mount, in which the camera housing is located, is connected to a flooding chamber of the buoyancy and diving aid. The water flowing into the hull between the transparent pane or pane housing and the edge of the camera feedthrough thus enters the flooding chamber, which is already filled with water. Advantageously, a transparent pane or pane housing that is not installed in a sealed manner can be easily removed or replaced during servicing.

[0026] A simple alignment of the transparent pane or pane housing in the circumferential direction relative to the fuselage can be achieved by making the transparent pane and / or a pane holder of the pane housing in which the transparent pane is held oval.

[0027] Precise alignment of the disc housing relative to the camera housing, both in the circumferential and axial directions, can be achieved by sealing the disc housing with the camera housing and by providing the disc housing and the camera housing with locking devices that clearly align the disc housing relative to the camera housing in both the axial and circumferential directions. If, in addition, the circumferential alignment of the disc housing relative to the hull is predefined, for example, by the oval design of the transparent disc or the disc frame, then precise alignment of the front camera arranged in the camera housing relative to the hull of the swimming and diving aid can be achieved.

[0028] A wired connection between the front camera and the control electronics can be achieved by closing the camera housing at the rear with a waterproof housing closure that can be attached to the camera housing and by leading a data cable for transmitting the video data to the control unit through the housing closure in a waterproof manner.

[0029] According to a particularly preferred embodiment of the invention, the fuselage can be stiffened in the area of ​​the front camera mount. Vibrations of the fuselage in the area of ​​the front camera mount and thus of the front camera can thus be avoided.

[0030] The invention is explained in more detail below with reference to an embodiment illustrated in the drawings. They show: Fig. 1 in perspective side view from behind a swimming and diving aid, Fig. 2 in a perspective side view from the front the Figure 1 shown swimming and diving aid, Fig. 3 in perspective side view from behind a section of the Figure 1 shown swimming and diving aid in the area of ​​a display, Fig. 4 a front area of ​​the Figure 1 shown swimming and diving aid in a side sectional view, Fig. 5 in an exploded view a front camera assembly, Fig. 6 a Figure 4 shown section of the swimming and diving aid in the area of Figure 5 shown front camera assembly in an enlarged sectional view, Fig. 7 a Figure 4 shown section in the area of ​​a rear camera in an enlarged sectional view and Fig. 8 a flow chart for controlling the cameras.

[0031] Figure 1shows a perspective side view from behind of a swimming and diving aid 10. In Figure 2 is the Figure 1 shown swimming and diving aid 10 in a perspective side view from the front.

[0032] The swimming and diving aid 10 has a hull 11. The hull 11 is made up of an upper part 11.6 and a Figure 2shown lower part 11.4. The upper part 11.6 is equipped with two handles 16, which are arranged on either side of the hull 11. A user can hold on to these handles 16 and control the swimming and diving aid 10 using control elements 16.1 attached to the handles 16. In particular, the motor power of the swimming and diving aid 10 can be varied here. A switching element 16.2 is also arranged on one of the handles 16 and a switching element 16.3 is arranged on the opposite handle 16. The user, who holds on to the handles 16, rests with his upper body on a support surface 11.3 in the area behind a display 20 on the upper part 11.6. In this position, the user can easily read the display 20 and operate the control elements 16.1, the switching element 16.2 and the switching element 16.3. There is a bracket 11 on the support surface 11.3.7 for attaching a belt system with which the user can strap himself to the swimming and diving aid 10. In front of the support surface 11.3 there is a closure 12.1 for a fastening device located behind it. Figure 4 shown charging socket 12 is arranged. Batteries contained in the fuselage 11 can be charged via the charging socket 12.

[0033] Carrying handles 11.2 are arranged on the side of the hull 11, by which the swimming and diving aid 10 can be carried outside of the water.

[0034] In the direction of travel in front of the display 20 and between the two handles 16, a removable cover 14 is attached to the fuselage 11. On the sides, as shown in Figure 2 shown, ventilation openings 15.1 are provided in the cover 15, which are connected to a ventilation opening provided in the fuselage 11 and in Figure 4 shown flooding chamber 19.

[0035] How Figure 2As can be seen, water inlet openings 15.2 are provided in the area of ​​the bow 11.1, through which water can flow into the flooding chamber 19. The flooding chamber 19 can be vented via the vent openings 15.1 of the cover 14. By filling the flooding chamber 19 with water, the buoyancy of the swimming and diving aid 10 is adjusted so that a predetermined buoyancy force is maintained, so that both swimming and diving operation is possible. Figure 1Water outlet openings 15.3 covered by slats are attached to the rear 11.5 of the swimming and diving aid 10, which are also connected to the flooding chamber 19. As soon as the swimming and diving aid 10 is placed in the water, the flooding chamber 19 is flooded with water which enters through the water inlet openings 15.2 and water outlet openings 15.3. As soon as the swimming and diving aid 10 goes into operation, a current is generated in the flooding chamber 19. The water enters the flooding chamber 19 through the water inlet openings 15.2. It flows through the flooding chamber 19 and washes around electrical components held in the flooding chamber 19, such as a Figure 4shown electric motor 30 for driving the swimming and diving aid 10 or the associated accumulators. The water absorbs the power loss of the electrical components and cools them. After flowing through the flooding chamber 19, the water leaves it through the water outlet openings 15.3, which are arranged symmetrically on both sides of a jet outlet 17 of a flow channel 18. A propeller of the swimming and diving aid 10 (not shown) is arranged in the flow channel 18; this propeller sucks in water and expels it from the jet outlet 17, thereby driving the swimming and diving aid 10.

[0036] A flow stator 18.2 is arranged at the end of the flow channel 18, which counteracts the rotation of the water flowing through the flow channel 18, so that the water flows out of the flow channel 18 with as little rotation as possible. The rotational energy of the water is converted into linear kinetic energy and thus serves to drive the swimming and diving aid 10.

[0037] The hull 11 of the swimming and diving aid 10 is made of a plastic or a composite material. This makes the swimming and diving aid 10 lightweight, so that it can be carried by a single person outside of the water. A bow tip 11.8 forming the front area of ​​the bow 11.1 is made of an elastic material, for example rubber or silicone. This increases the shock resistance of the swimming and diving aid 10 in the area of ​​the bow 11.1. Above the bow tip 11.8, a transparent disc 61 of a Figure 5 and 6 The front camera assembly 60 shown in more detail is embedded in the hull 11 of the swimming and diving aid 10. The transparent pane 61 is attached to the hull 11 centrally and facing in the direction of travel.

[0038] Figure 3 shows a perspective side view from behind a section of the Figure 1shown swimming and diving aid 10 in the area of ​​the display 20. The display 20 serves, among other things, to display operating parameters of the swimming and diving aid 10, for example the current power setting of a drive unit, as set by the driver via the controls 16.1, a driving speed or a diving depth. A transparent display cover 21 is shown partially open. The transparent display cover 21 is made of acrylic glass in this case. An LCD display 22 is arranged behind the transparent display cover 21. The LCD display 22 is inserted into an LCD display holder 23.1 of a display housing 23. A rear camera 50 is arranged below the LCD display 22. The rear camera 50 is held in a rear camera holder 23.2 of the display housing 23. The rear camera 50 looks through the transparent display cover 21 in the direction of the support surface 11.3.In operation, it therefore detects in particular the face of a driver of the swimming and diving aid 10 lying on the support surface 11.3.

[0039] Figure 4 shows a front area of ​​the Figure 1 A side sectional view of the swimming and diving aid 10 shown. The same designators are used for identical components.

[0040] An underwater propulsion unit is arranged within the hull 11. In the present embodiment, the underwater propulsion unit includes an electric motor 30, an electronics housing 40, a motor shaft 34 (made of carbon fiber reinforced plastic) with a surrounding outer tube 34.1, and a propeller (not shown).

[0041] A motor controller (not shown) is arranged in the electronics housing 40 and is encased in a watertight manner by the electronics housing 40. The electronics housing 40 is formed by two housing halves and can be opened by removing one housing half. In the selected sectional drawing, only one housing half is shown. A second housing half (not shown) rests watertight with a circumferential second closing surface on a closing surface of the first housing half. For this purpose, a seal (not shown) is provided between the two closing surfaces. The electronics housing 40 is mechanically connected to the electric motor 30 via an opening section 41. For this purpose, a sealing section 41.1 adjoining the opening section 41 is plugged onto the end of a motor housing 33 of the electric motor 40. The gap formed between the sealing section 41.1 and the motor housing 33 is sealed by means of sealing elements 42.This creates a watertight connection between the electronics housing 40 and the motor housing 33 of the electric motor 30. Electrical connections between the motor controller and the electric motor 30 can be routed through the opening section 41.

[0042] The electronics housing 40 is held in the flooding chamber 19 by means of fastening elements. The flooding chamber 19 has flooding openings 19.1 through which water can flow into the flooding chamber 19. The electric motor 30 is also arranged within the flooding chamber 19. The electric motor 30 is attached to the hull 11.

[0043] The motor shaft 50 is guided within the outer tube 34.1 of the electric motor 30 into the flow channel 18 of the swimming and diving aid 10. The flow channel 18 extends from an inlet opening 18.4 on the underside of the swimming and diving aid 10 to the jet outlet 17 at its rear 11.5, as shown in Figure 2It can be formed integrally in the hull 11. In the present embodiment, the flow channel 18 is formed by an upper shell and a lower shell, which are connected to one another by suitable fastening means. In the area of ​​the inlet opening 18.4, a guide element 18.1 is provided, past which the water flows and which forms a lower support for the swimming and diving aid 10.

[0044] A fully encapsulated underwater drive unit is formed by the sealed, pluggable connection of the electronics housing 40 to the motor housing 33, the sealed connection of the outer tube 34.1 to the motor housing 30, and a propeller-side seal (not shown) between the outer tube 34.1 and the motor shaft 40. This can be arranged in water-floodable areas within the hull 10 of the swimming and diving aid 10. In the present embodiment, the electric motor 30 and the motor control unit arranged in the electronics housing 40 are arranged in the flooding chamber 19, while the outer tube 34.4 with the motor shaft 34 is arranged in the flow channel 18. When the swimming and diving aid 10 is immersed, the flooding chamber 19 is flooded with water through the flooding openings 19.1 and the water inlet and outlet openings 15.2, 15.3, whereby the displaced air escapes via the vent openings 15.1, as shown in Figure 2As the swimming and diving aid 10 moves through the water, a current is created within the flooding chamber 19, with the water flowing into the water inlet openings 15.2 located at the bow 11.1 and flowing out again through the water outlet openings 15.3 located at the stern 11.5. The electric motor 30 and motor control unit are thus efficiently cooled by the flowing water. Heat loss can be quickly dissipated, allowing the installation of a very high-performance electric motor 30 and associated motor control unit.

[0045] The electric motor 30 drives the propeller via the motor shaft 34. This propeller generates a water flow within the flow channel 18 from the inlet opening 18.4 to the jet outlet 17, thereby driving the swimming and diving aid 10. A rotor 32 of the electric motor 30 is mounted on a rotor section of the motor shaft 34 and glued thereto. A stator 31 of the electric motor 30 is provided circumferentially around the rotor 32. The stator 31 is cast into the motor housing 33 with a potting compound and is thus thermally coupled to the motor housing 33. The heat loss of the electric motor 30 can thus be easily dissipated to the motor housing 33 and from there to the water flowing past.

[0046] In the area of ​​the bow 11.1 of the swimming and diving aid 10, the front camera assembly 60 is arranged in a front camera recording area 80, as shown enlarged for the area marked VI in Figure 6 is shown.

[0047] An area marked VII around the rear camera 50 is enlarged in Figure 7 shown.

[0048] Figure 5 shows an exploded view of the front camera assembly 60.

[0049] The transparent pane 61 has an oval outer surface 61.1. Two pane sealing elements 61.3 are assigned to it. Furthermore, two crescent-shaped aperture elements are assigned to the oval transparent pane 61.2. These are shaped such that their outer contour follows the outer contour of the transparent pane 61.2 and leaves a circular see-through area 61.2 free in the center of the transparent pane 61.2.

[0050] A pane housing 63 is arranged facing the transparent pane 61. The pane housing 63 has a pane mount 63.1, a subsequent locking section 63.2, and a final, cylindrical projection 63.6. The pane mount 63.1 includes an oval opening into which the transparent pane 61, sealed by the pane sealing elements 61.3, can be inserted. Alternatively or additionally, it is conceivable for the transparent pane 61 to be glued along its outer surface 61.1 into the oval opening of the pane mount 63.1. The pane mount 63.1 is designed such that the aperture elements 62 are held in position against the transparent pane 61 when the front camera assembly 60 is mounted.

[0051] The front camera assembly 60 is also assigned a camera housing 64. The camera housing 64 has a cylindrical first housing section 64.1, which faces the projection 63.6 of the disc housing 63. The first housing section 64.1 is adjoined by a second housing section 64.2, the outer diameter of which is wider than the first housing section 64.1. The second housing section 64.2 is followed by a third housing section 64.3 with a substantially rectangular outer and inner contour. A cylindrical fourth housing section 64.4 is formed onto the third housing section 64.3. This section has an outer diameter that is even larger than the second housing section 64.2. Two locking bolts 64.5 are arranged laterally to the first housing section 64.1, angularly offset and pointing toward the disc housing 63. In the selected view, only one of the locking bolts 64 is visible.5, while the other locking bolt 64.5 is arranged concealed by the first housing section 64.1. Furthermore, a screw shoulder 64.6 is arranged laterally of the first housing section 64.1, pointing in the direction of the disc housing 63. The screw shoulder 64.6 is arranged in the present case at half an angle formed between the two locking bolts 64.5 and related to the center axis of the camera housing 64. The screw shoulder 64.6 and the locking bolts 64.5 are formed at the ends on the second housing section 64.2 and laterally on the first housing section 64.1. Pointing towards the disc housing 63, the screw shoulder 64.6 and the locking bolts 64.5 protrude beyond the front end of the first housing section 64.1 of the camera housing 64.

[0052] The first housing section 64.1 has a cylindrical opening along its central longitudinal axis into which the projection 63.6 of the disc housing 63 can be inserted. To enable a watertight connection between the camera housing 64 and the disc housing 63, two circumferential sealing ring grooves 63.5 are incorporated into the projection 63.6 of the disc housing 63. A disc housing sealing element 63.7 can be inserted into each of these sealing ring grooves 63.5. When installed, the disc housing sealing elements 63.7 lie between the sealing ring grooves 63.5 of the projection 63.6 and the inner surface of the first housing section 64.1, thereby sealing the transition gap.

[0053] The locking section 63.2 is formed eccentrically to the extension 63.6. It protrudes radially all the way around the extension 63.6. The locking section 63.2 thus forms a stop against the first housing section 64.1 of the camera housing 64. It thus limits how far the disc housing 63 is inserted into the first housing section 64.1. The locking section 63.2 has locking steps 63.3 facing the locking bolts 64.5. When the extension 63.6 is inserted into the first housing section 64.1 of the camera housing 64, the locking bolts 64.5 engage the locking steps 63.3 of the locking section 63.2. As a result, the disc housing 63 is also precisely aligned with the camera housing 64 in the circumferential direction. The screw boss 64.6 of the camera housing 64 is aligned with a screw hole 63.4 on the outer edge of the locking section 63.2. With the front camera assembly 60 mounted, a fixing screw 60.1 can be inserted through the screw hole 63.4 and screwed into the screw neck 64.6 until its screw head rests against the locking section 63.2. This holds the disc housing 63 axially relative to the camera housing 64.

[0054] Two camera housing flanges 64.7 are formed on the fourth housing section 64.4 of the camera housing 64, opposite one another and projecting laterally. The camera housing flanges 64.7 each have a bore. They serve to attach the front camera assembly 60 to the hull 11 of the swimming and diving aid 10. Screws are passed through the bores and screwed to the hull 11.

[0055] A front camera 65 is arranged opposite the fourth housing section 64.4 of the camera housing 64. A camera board 65.3 is assigned to the front camera 65, with its camera lens 65.1 and its camera housing 65.2. The camera lens 65.1 increases its diameter toward the camera housing 65.2 in the form of a step 65.4. Screw feedthroughs 65.5 are provided in the corners of the camera board 65.3 for securing the front camera 65 in the camera housing 64.

[0056] A housing closure 66 is arranged at a distance from the front camera 65. The housing closure 66 has a sealing section 66.1 in the form of a hollow cylinder, into which two circumferential, groove-shaped sealing ring receptacles 66.2 are formed. On its side facing away from the camera housing 64, the housing closure 66 is closed by a circular closure cover 66.3. The closure cover 66.3 has a larger diameter than the sealing section 66.1. A cable opening 66.4 is formed in the closure cover 66.3 along its central axis. The cable opening 66.4 is circumferentially enclosed by an annular web 66.6.

[0057] Two housing sealing rings 66.5 are shown between the housing closure 66 and the front camera 65. The housing sealing rings 66.5 can be inserted into the sealing ring receptacles 66.2 of the housing closure 66. After the front camera 65 has been mounted in the camera housing 64, the housing closure 66 can then be pushed with its sealing section 66.1 into the fourth housing section 64.4 of the camera housing 64 until its closure cover 66.3 rests against the camera housing 64. Connecting cables of the front camera 65 can be routed out of the camera housing 64 through the cable opening 66.4.

[0058] Finally, a retaining clip 67 of the front camera assembly 60 is shown. The retaining clip 67 has clamp flanges 67.1 arranged laterally opposite one another, which are connected to a holding area 67.3 by means of upwardly projecting clamp webs 67.2. A housing closure support 67.4 is formed into the holding area 67.3. When the housing closure 66 is inserted into the camera housing 64, the retaining clip 67 can be pressed with its holding area 67.3 against the closure cover 66.3 of the housing closure 66 such that the clamp flanges 67.1 rest against the camera housing flanges 64.7 of the camera housing 64. As already described for the assembly of the camera housing 64, a fastening screw can then be passed through the holes in the clamp flanges 67.1 and the camera housing flanges 64.7, which are aligned with one another, and screwed to the hull 11 of the swimming and diving aid 10.As a result, the front camera assembly 60 is firmly connected to the body 11, with the housing closure 66 being axially held by the holding area 67.3 of the retaining clip 67. The retaining clip 67 thus prevents the housing closure 66 from opening accidentally. When mounted, the annular web 66.6 is guided through the housing closure support 67.4 of the retaining clip 67.

[0059] Figure 6 shows one in Figure 4 shown section of the swimming and diving aid 10 in the area of Figure 5 front camera assembly 60 shown in an enlarged sectional view. The area shown is in Figure 4 marked by a section marked VI.

[0060] The Figure 5 The front camera assembly 60 shown in an exploded view is in Figure 6shown assembled. The oval transparent pane 61 is inserted into the pane surround 63.1 of the pane housing 63. The transparent pane 61 is sealed against the pane housing 63 by means of the pane sealing elements 61.3. As already mentioned, the transparent pane 61 can also be glued to the pane housing 64 in addition to or alternatively to the pane sealing elements 61.3. The first housing section 64.1 of the camera housing 64 is pushed onto the shoulder 63.6 of the pane housing 63 such that its front side rests against the locking section 63.2 of the pane housing 63. The transition from the shoulder 63.6 to the first housing section 64.1 is sealed by the pane housing sealing elements 63.7, which are inserted into the sealing ring grooves 63.5 of the shoulder 63.6. The fixing screw 60.1 is through the screw passage 63.4 of the locking section 63.2 of the disc housing 63 to the screw attachment 64.6 of the camera housing 64 and screwed into it. As a result, the screw head of the fixing screw 60.1 rests with a section on the locking section 63.2, so that the disc housing 63 is held axially relative to the camera housing 64. In the circumferential direction, the disc housing 63 is held by the engagement of the in . Figure 5 The locking pins 64.5 shown are aligned exactly opposite the camera housing 64 in the locking steps 63.3 of the locking section 63.2. This results in an exact alignment of the front camera 65 mounted in the camera housing 64 with respect to the window housing 63 and thus the oval transparent window 61, both axially and circumferentially.

[0061] The front camera 65 is inserted into the camera housing 64 until the front end of its camera lens 65.1 is flush with the outer end of the first housing section 64.1. The camera lens 65.1 thus ends directly in front of the aperture elements 62. The camera lens 65.1 rests with its step 65.4 against a correspondingly designed inner step, which is attached circumferentially to the front outer end of the projection 63.6 of the disc housing 63. This ensures that the front camera 65 is precisely positioned in the axial direction. The camera housing 65.2 is arranged in the second housing section 64.2, which is widened in a stepped manner compared to the first housing section 64.1, while the rectangular camera board 65.3 is inserted into the correspondingly rectangular third housing section 64.3. The camera housing 64 is closed at the end by the housing closure 66. This is with its sealing section 66.1 is pushed into the fourth housing section 64.4 of the camera housing 64 until the cover 66.3 stops. A data cable, in this case a USB cable, is guided through the cable opening 66.4 of the cover 66.3. The front camera 65 can thus be connected to a . Figure 7 shown control electronics 70.

[0062] The front camera assembly 60 is secured in a front camera mount 83 of the fuselage 11. For this purpose, the front camera mount 83 is molded into the interior of the fuselage 11. Pointing toward the bow tip 11.8, the front camera mount 83 opens through a camera feedthrough 81 in the outer skin of the fuselage 11. The camera feedthrough 81 has an oval shape, and the oval window surround 63.1 of the window housing 63 is inserted into the camera feedthrough 81. Surrounding the camera feedthrough 81, the fuselage 11 forms a camera stop 82 against which the window housing 63 rests with its locking section 63.2. The fixing screw 60.1 also rests with its screw head against the camera stop 82. This prevents the fixing screw 60.1 from accidentally coming loose. The axial position of the front camera assembly 60 is precisely defined by the stop of the locking section 63.2 on the camera stop 82 surrounding the camera feedthrough 81.Due to the oval shape of the transparent pane 61 and the pane mount 63.1 of the pane housing 63, these are clearly aligned in the circumferential direction relative to the likewise oval camera feedthrough 81 of the fuselage 11. Due to the described operative connection between the locking pins 64.5 of the camera housing 64 and the locking steps 63.3 of the pane housing 63, the camera housing 64 and thus the front camera 65 installed therein are precisely aligned in the circumferential direction relative to the pane housing 63 and thus to the fuselage 11 of the swimming and diving aid 10.

[0063] Due to the waterproof design of the front camera assembly 60, a seal between the windscreen housing 63 and the fuselage 11 in the area of ​​the camera feedthrough 81 is not required. As can be seen more clearly from Figure 4As can be seen, the interior of the front camera recording area and thus the front camera receptacle 83 is spatially connected to the flooding chamber 19. Water flowing in laterally past the window housing 63 thus reaches the flooding chamber 19, through which water already flows during driving. However, it is also conceivable to seal the gap formed between the window housing 63 and the fuselage 11 in the area of ​​the camera feedthrough 81 by means of an adhesive, a sealant, or a sealing element. A front camera access area 87 to the front camera assembly 60 is formed via the flooding chamber 19. This enables access, for example for maintenance or repair of the front camera 65.

[0064] As already mentioned Figure 5 described and in the selected sectional view in Figure 6not visible, the front camera assembly 60 is connected to the fuselage 11 by means of screws which are guided through the holes of the camera housing flanges 64.7 and clamp flanges 67.1.

[0065] Facing the front camera assembly 60, the fuselage 11 has an inwardly stepped fuselage section 84. Its contour follows the outer shape of the front camera assembly 60 and / or the stepped sequence of the housing sections 64.1, 64.2, 64.3, 64.4 of the camera housing 64. The fuselage 11 is further stiffened in the front camera receiving area 80. In this case, a vertically arranged stiffening web 85 and a horizontally arranged stiffening strut 86 extend into the front camera receiving area 80. The stiffening web carries a bezel 88, which at least partially surrounds the front camera assembly 60. These stiffening measures prevent the hull in the front camera recording area 80 from deforming or vibrating even when the hull 11 is subjected to strong mechanical stress, for example during swimming at high speeds.This prevents blurring of the video recordings of the front camera 65, which can be caused by high-frequency vibrations of an insufficiently reinforced fuselage 11.

[0066] Figure 7 shows one in Figure 4 shown and marked VII therein in an enlarged sectional view in the area of ​​the rear camera 50. The rear camera 50 is arranged in a display 20 oriented toward the support surface 11.3 of the swimming and diving aid 10 and thus toward a rider resting thereon.

[0067] The display 20 is covered by a transparent display cover 21. On the outer circumference of the display cover 21, the display housing 23 rests against the display cover 21 with a display housing frame 23.5. To prevent the ingress of water, a groove 23.4 is formed into the contact surface of the display housing frame 23.5 against the display cover 21, into which groove a first sealing element 23.3 is inserted. The rear camera mount 23.2 is formed into the display housing frame 23.5. The rear camera 50, with its rear camera housing 51, is inserted into the rear camera mount 23.2. The LCD display 22 is inserted into the LCD display mount 23.1 of the display housing 23 at a laterally spaced distance from the rear camera 50 and is held therein. An HMI housing 24 (HMI: Human Machine Interface) is flanged to the display housing 23. The edge of the HMI housing 24 rests against the display housing frame 23.5 of the display housing 23. An HMI housing web 24 is provided all around for precise positioning.3 is molded onto the edge of the HMI housing 24, which encloses the display housing frame 23.5 on the outside. An HMI housing groove 24.1 is molded into the contact surface of the HMI housing 24 on the display housing 23. A second sealing element 24.2 is inserted into this groove, sealing the HMI housing 24 from the display housing 23. Screws 21.1 are guided through the display cover 21, the display housing frame 23.5, and the edge of the HMI housing 24 and are each screwed into a nut 21.2 on the rear. This connects the display cover 21, the display housing 23, and the HMI housing 24 to one another.

[0068] The control electronics 70 are inserted and secured in the HMI housing 24. On the rear, the HMI housing 64 has a cable feedthrough 24.4 in the form of a cutout. A plug 24.5 is inserted into the cable feedthrough 24.4. The plug 24.5 has two axially spaced plug grooves 24.6. Sealing rings 24.7 are inserted into the plug grooves 24.6, sealing the plug 24.5 from the HMI housing 24. The plug 24.5 has a central hole for the sealed passage of a cable. The data cable of the front camera 65 can be inserted into the HMI housing 24 through this hole.

[0069] The front camera 65 and the rear camera 50 are each connected to the control electronics 70 via data cables. In this case, the front camera is connected to the control electronics 70 via a USB 2.0 interface, and the rear camera 50 via a MIPI interface. The control electronics 70 is connected to the motor control arranged in the electronics housing 40 via a bus system. Furthermore, the LCD display 22 is connected to the control electronics 70. The operating elements 16.1 arranged on the handles 16, the switching element 16.2, and the switching element 16.3 are connected to the motor control. The operating elements 16.1 serve to control the water acceleration device of the swimming and diving aid 10 and, in particular, to control the power of the electric motor 30. The switching element 16.2 and the switching element 16.3 can control at least a partial function of the cameras 50, 65.To this end, the control electronics 70 queries the respective switching state of the switching element 16.2 and the switching element 16.3 from the engine control unit in short cycles. Depending on the actuation of the switching element 16.2 and the switching element 16.3, the video image from the front camera 65 or the rear camera 50 can be shown on the display 20. Furthermore, video recordings can be recorded from a memory connected to the control electronics 70. In this case, an SD memory card is provided as the memory. The control electronics 70 also has a Wi-Fi interface. Via this interface, video data can be transferred to an external data storage device, for example, a smartphone or a computer.Furthermore, the Wi-Fi interface is designed to receive software updates for all hardware components of the swimming and diving aid, for example, the control of the cameras and / or for the control of the display and / or for the motor control and / or for the battery management (battery control). Software updates for the motor control are then forwarded by the control electronics 70 to the motor control via the data bus, in this case a CAN data bus. It is also conceivable to send diagnostic data from the swimming and diving aid 10 to external devices via the Wi-Fi interface. Such diagnostic data can, for example, relate to the status of the batteries or errors in the drive system. It is also conceivable to provide a Bluetooth interface instead of the Wi-Fi interface / WLAN interface.The digital connection of the motor control with the control electronics 70 makes it possible to display current operating parameters of the swimming and diving aid 10 on the display 20.

[0070] Figure 8shows a flowchart for controlling the cameras 50, 65. Starting from a main menu 90, a query SE 91.1 queries whether the switching element 16.2 has been actuated. If this is the case, the current power position of the motor control for the electric motor 30 is queried in the subsequent power position query 91.2. If a power position of 0 is set, i.e., no voltage is applied to the electric motor 30, a first message output 92.1 appears on the display 20, indicating that a power position of at least 1 should be set. This query prevents a video recording from being accidentally started when the swimming and diving aid 10 is not in operation. Preferably, the swimming and diving aid 10 has a decoupling of the energy transmission to the propeller, so that video recordings can be made even when the swimming and diving aid 10 is stationary. After the first message output 92.1, the process returns to the main menu 90.If the power setting query 91.2 indicates that voltage is applied to the electric motor 30, the free storage capacity of the memory for the video recordings is checked in a first storage capacity query 91.3. If the storage capacity is below a predetermined limit, a second message output 92.2 indicates that there is not enough storage capacity available for a video recording and that files must be deleted beforehand. The process then returns to the main menu 90. If, however, the available storage capacity in the first storage capacity query 91.3 corresponds to or exceeds the limit, a video recording is carried out via the front camera 65 in a front recording block 93.1. The video data recorded by the front camera 65 is then shown on the display 20 and recorded by the digital memory. During the video recording, the switching state of the switching element 16 is checked in a second query SE 91.4.2 and in a second query Storage Capacity 91.5 the available storage capacity is queried. If the switching element 16.2 is pressed during video recording, this is ended and the process jumps to the main menu 90. If the storage capacity of the memory reaches a second limit during video recording with the front camera 65, the video recording is ended and the user interface goes to the main menu 90. During video recording via the front camera 65, the switching state of the changeover switch 16.3 is also queried via the first query US 91.6. If this is pressed, the ongoing video recording of the front camera 65 is ended and a video recording with the rear-facing rear camera 50 follows in a block Recording Rear 93.2. This video recording is also saved and shown on the display 20. Similar to the recording with the front camera 65, a third query SE 91.7, the switching state of switching element 16.2 is queried, in a third query storage capacity 91.8 the free storage capacity of the data memory is queried, and in a second query US 91.9 the switching state of switching element 16.3 is queried. When switching element 16.2 is actuated or when the second limit value for the storage capacity is undershot, the video recording is terminated and the user is directed to the main menu 90. By actuating switching element 16.3, the video recording via the rear camera 50 is also terminated and a new video recording is started via the front camera 65.

[0071] Preferably, the limit value for the storage capacity in the first query, storage capacity 91.3 with, for example, 2 GByte, is selected to be greater than the second limit value in the second query, storage capacity 91.5 with, for example, 1 GByte.

[0072] The arrangement of the two cameras 50, 65 makes it possible to record video recordings both in the direction of travel and of the driver. The switching element 16.2, attached to a handle 16.1, and the switching element 16.3, also attached to a handle 16.1, enable easy operation of the video system even during sporty driving. The provided Wi-Fi interface allows data to be exchanged with external devices. Due to the digital connection between the control electronics 70 and the motor control, data can also be sent to and received via the Wi-Fi interface to the motor control and / or for other hardware components of the swimming and diving aid, for example, the control of the cameras and / or for the control of the display and / or for the battery management (battery control).The video system thus enables additional functionality, for example, by allowing software updates to be transferred to the engine control system and / or the other aforementioned hardware components. The integration of the front camera 65 into the fuselage 11 makes it possible to capture images directed in the direction of travel. The integration of the front camera 65 into the fuselage 11 results in low vibrations and thus interference-free video recordings. The video quality is significantly improved, in particular, by additional reinforcement of the front camera recording area 80 of the fuselage 11.

Claims

1. A swimming and diving aid (10), having a hull (11) which comprises a flow channel (34) or with which a flow channel (34) is associated, a motor-driven water acceleration arrangement, in particular a propeller, being associated with the flow channel (18); having a support surface (11.3) for an upper body on an upper side of the hull (11); having grips (16) mounted on the swimming and diving aid (10), control elements (16.1) for controlling the water acceleration arrangement by means of an associated motor controller being provided on the grips (16); and having a display (20), facing toward the support surface (11.3), for showing operating parameters of the swimming and diving aid (10), characterized in that a forward-directed front camera (65) is integrated into the hull (11) in front of the support surface (11.3) in a direction of travel, and is connected to an electronic control system (70); in that the front camera (65) is adapted for video capture; wherein the electronic control system (70) is embodied to apply control to the front camera (65) and to receive camera signals; in that a switching element (16.2) for starting and ending a video capture is arranged on at least one grip (16); in that the front camera (65) is arranged in a watertight camera enclosure (64); in that the watertight camera enclosure (64) is received in a front camera receptacle (83) inside the hull (11) and fastened to the hull (11) of the swimming and diving aid (10); in that the outer envelope of the hull comprises, in the viewing direction of the front camera (65), a camera passthrough (81) in which a transparent window (61) is arranged; and in that the transparent window (61) closes off the watertight camera enclosure (64) at the front.

2. The swimming and diving aid (10) according to Claim 1, characterized in that a rearward-directed back camera (50) is arranged in front of the support surface (11.3) and is connected to the electronic control system (70); and wherein the back camera (50) is adapted for video capture.

3. The swimming and diving aid (10) according to Claim 1 or 2, characterized in that a switchover element (16.3), for switching over between the back camera (50) and the front camera (65) with which video capture is respectively occurring, is arranged on at least one grip (16).

4. The swimming and diving aid (10) according to one of Claims 1 to 3, characterized in that the display (20) is connected to the electronic control system (70) of the back camera (50) or the front camera (65) and is designed to show the image being acquired using the respectively selected back camera (50) or front camera (65).

5. The swimming and diving aid (10) according to one of Claims 1 to 4, characterized in that an LCD display element (22) of the display (20), the back camera (50), and the electronic control system (70) are arranged in a one- or two-part housing embodied to be watertight.

6. The swimming and diving aid (10) according to Claim 5, characterized in that the housing that is embodied to be watertight is covered by a transparent display covering (21) at least in the region of the LCD display element (22), or in the region of the LCD display element (22) and of the back camera (50).

7. The swimming and diving aid (10) according to one of Claims 1 to 6, characterized in that the electronic control system (70) is connected to the motor controller via a data bus; the switching signals of the switching element (16.2) and / or of the switchover element (16.3) are delivered to the motor controller; and the electronic control system (70) is embodied to retrieve the switching signals of the switching element (16.2) and / or of the switchover element (16.3) from the motor controller.

8. The swimming and diving aid (10) according to one of Claims 1 to 7, characterized in that the electronic control system (70) is embodied to enable the video capture if a voltage is applied to an electric motor (30) of the water acceleration arrangement, and not to enable the video capture if no voltage is applied to the electric motor (30) of the water acceleration arrangement.

9. The swimming and diving aid (10) according to one of Claims 1 to 8, characterized in that the electronic control system (70) is embodied to enable the video capture when a free memory capacity of a memory for the video captures corresponds to or exceeds a predefined limit value, and not to enable the video capture if the free memory capacity of the memory for the video captures falls below the predefined limit value; and / or the control unit (70) is embodied to interrupt the video capture if the free memory capacity of the memory for the video captures falls below a predefined second limit value.

10. The swimming and diving aid (10) according to one of Claims 1 to 9, characterized in that the electronic control system (70) comprises a radio interface, in particular a WiFi interface or WLAN interface and / or a Bluetooth interface; and the electronic control system (70) is embodied to transfer video data and / or to receive software updates for individual or several hardware components of the swimming and diving aid, for example for the back camera (50) or front camera (65)and / or for the display control system and / or for the motor controller and / or for the rechargeable-battery management system (rechargeable battery controller), via the radio interface.

11. The swimming and diving aid (10) according to one of Claims 1 to 10, characterized in that a microphone is associated with the front camera (65) and / or back camera (50); and the captured audio signals are delivered to the electronic control system (70).

12. The swimming and diving aid (10) according to one of Claims 1 to 11, characterized in that the front camera (65) is connected to the electronic control system (70) via a digital interface, in particular a USB interface, and a data cable.

13. The swimming and diving aid (10) according to one of Claims 1 to 12, characterized in that the back camera (50) is connected to the electronic control system (70) via a digital interface, in particular a MIPI interface.

14. The swimming and diving aid (10) according to one of Claims 1 to 13, characterized in that the front camera receptacle (83) is in physical communication with a flooding chamber (19) of the swimming and diving aid (10).

15. The swimming and diving aid (10) according to one of Claims 1 to 14, characterized in that the transparent window (61), or a window housing (63) in which the transparent window (61) is held, is sealed with respect to the camera passthrough (81); or a water-conveying gap is configured between the transparent window (61), or the window housing (63) in which the transparent window (61) is held, and the camera passthrough (81).

16. The swimming and diving aid (10) according to one of Claims 1 to 15, characterized in that the transparent window (61), and / or a window bezel (63.1) of the window housing (63) in which the transparent window (61) is held, is of oval configuration.

17. The swimming and diving aid (10) according to one of Claims 1 to 16, characterized in that the window housing (63) is connected sealedly to the camera enclosure (64); and the window housing (63) and the camera enclosure comprise locking means that define, in both an axial and a circumferential direction, an unequivocal orientation of the window housing (63) with respect to the camera enclosure (64).

18. The swimming and diving aid (10) according to one of Claims 1 to 17, characterized in that the camera enclosure (64) is closed off at the rear by a housing closure (66) that can be placed in watertight fashion onto the camera enclosure (64); and a data cable for transferring video data to the electronic control system (70) is guided in watertight fashion through the housing closure (66).

19. The swimming and diving aid (10) according to one of Claims 1 to 18, characterized in that the hull (11) is embodied in stiffened fashion in the region of the front camera receptacle (83).