Floating and diving assistance device with camera

Abstract

The invention relates to a floating and diving assistance device, comprising: a main body having or being provided with a flow channel, the flow channel being provided with a motor-driven water acceleration device, in particular a propeller; a support surface for an upper body on the upper side of the main body; the handle is arranged on the floating and diving auxiliary device, and an operating element for controlling the water accelerating device by means of a corresponding motor control device is arranged on the handle; and a display facing the support surface for displaying operating parameters of the floating and diving aid. According to the invention, a forward-oriented front camera is integrated in the main body in front of the support surface in the direction of travel and is connected to the control electronics such that the control electronics are designed to actuate the front camera and to receive camera signals, at least one handle is provided with a switch element used for starting and ending video shooting. The present invention enables video recording in the traveling direction of a floating and diving assistance device.

Description

[0001] Divisional application

[0002] This application is a divisional application of patent application No. 201880007240.0, entitled “Floating and diving assist device with camera”, filed with the State Intellectual Property Office of China on January 4, 2018. Technical Field

[0003] The present invention relates to a floating and diving aid device, which comprises: a main body, the main body having a flow channel or being equipped with a flow channel, wherein the flow channel is equipped with a motor-driven water acceleration device, in particular a propeller; a support surface for the upper body located on the upper side of the main body; a handle mounted on the floating and diving aid device, wherein an operating element for controlling the water acceleration device by means of a corresponding motor control device is provided on the handle; and a display facing the support surface for displaying operating parameters of the floating and diving aid device. Background Art

[0004] A watercraft of this type, particularly used as a diving trolley in the leisure sector, is disclosed in DE 10 2004 049 615 A1. The watercraft has a handle that a user grips while resting a portion of their upper body on the upper side of the main body of the watercraft. A flow channel is arranged within the main body, in which a propeller is mounted. The propeller is driven by an electric motor powered by a battery.

[0005] Being able to navigate known vessels underwater and on the surface requires precise weight determination. Therefore, the vessel must generate sufficient buoyancy to maintain sufficient afloat and prevent sinking. However, the buoyancy should not be too great to allow for a quick transition from surface to submerged navigation. Due to the deadweight of the electrical equipment, the vessel must have a sufficiently large buoyancy in the hull, which influences the vessel's structural dimensions and driving dynamics. Furthermore, an overflow space can be provided in the hull, which is filled with water and allows for optimal weight determination during operation. This overflow space is emptied for transport outside the water, resulting in a low deadweight vessel.

[0006] The arrangement of the various components of the vessel is selected so that the vessel is stable and lies in the water with its upper side facing upward, both with and without a user on the umbilicus. The mass is distributed so that the vessel stands upright and does not tilt in the water. The mass is preferably distributed symmetrically between the starboard and port sides of the vessel about a plane of symmetry extending from the bow to the stern of the vessel.

[0007] The ship has an outer shape that ensures a low flow resistance so that the energy consumption of the ship is as low as possible. The weight of the ship is designed to enable it to be carried.

[0008] US Pat. No. 6,115,060 discloses a retaining system comprising a receiving sleeve for a camera. The receiving sleeve is closed in the camera's viewing direction by a transparent cover or an optical element. A recess is introduced into the hull, to which a frame is attached. The frame comprises a sleeve with an external thread and a circumferential flange at the end. The frame is inserted through the hull's recess, so that the circumferential flange abuts the body from the outside. The flange element is screwed onto the sleeve's external thread with an internal thread from the inside of the body, sealingly clamping the edge of the recess between the externally abutting flange and the internally abutting flange. The receiving sleeve, containing the camera, is inserted into the sleeve of the frame and sealed circumferentially with a sealing ring. A cover is screwed onto the sleeve's external thread at the end, securing the receiving sleeve axially. A disadvantage of the camera mounting scheme shown in US Pat. No. 6,115,060 is that it is oriented in the direction of the surface normal of the hull only in the region where the recess is provided. To achieve alternative viewing directions, additional optical elements are required, such as prisms or cameras that must be movably arranged in a receiving sleeve, for example, via complex rotatably mounted housings. Since the bow area of a vessel often lacks a surface area of the hull facing the direction of travel, forward-looking video recording is only possible using such costly optical elements or movable housing components. To ensure blur-free video recording, the hull also needs to have sufficient bending strength in the area of the lead-through to prevent vibrations. This is particularly problematic for portable vessels with thin hull walls and high drive power. Another disadvantage is that the hull must be flat in the area of the cutout to enable waterproof installation of the retention system using flanges and screwed-on flange elements. In hydrodynamically optimized vessels, which are also designed for submerged travel, no such flat area exists, particularly in the bow area, making it impossible to install the camera from the front.

[0009] WO 2015 / 034382 A1 discloses a self-propelled vessel, particularly for use in maritime rescue operations. The vessel is U-shaped, with an electrically driven drive turbine located in each arm, designed as a flotation device. The turbine is pivotally mounted. The vessel can thus be positioned on one of its two surfaces, with the turbine pivoting toward the water-facing inlet, drawing water in from there and ejecting it again at the end of the arm. Handles are located on the sides of the arms, which a person can grip. The vessel can be controlled via remote control. However, the possibility of equipping the vessel with a camera that transmits signals to the central section is not described in detail.

[0010] WO2012 / 089951 shows a diving aid with a (digital) camera attached to the device via a pivotable frame. The device is oriented toward the bottom and used to record the living environment there. To determine the distance to the bottom, a laser is mounted on the frame. A trigger unit is also shown, which automatically takes photos at predetermined times or at regular intervals. The frame and the mounted camera significantly increase the flow resistance of the device and are therefore suitable only for slow diving maneuvers. Summary of the Invention

[0011] The object of the present invention is to provide a flotation and diving aid of the type mentioned at the outset which allows video recording in the direction of travel while at the same time providing a low flow resistance of the flotation and diving aid and simple operation.

[0012] The present invention achieves this objective by integrating a forward-facing front camera into the main body in front of the support surface in the direction of travel. The front camera is connected to control electronics, which are designed to operate the front camera and receive camera signals, and a switch element for starting and ending video recording is located on at least one handle. The front camera enables video recording in the direction of travel of the flotation and diving aid. To this end, the front camera is oriented in the viewing direction of the driver of the flotation and diving aid, so that the front camera advantageously captures the portion of the image facing the driver and the flotation and diving aid. Orienting the front camera in the direction of travel and in front of the driver's support surface is achieved by integrating the front camera into the main body of the flotation and diving aid. This integration is performed so that the external shape of the main body is at least largely preserved in the area of the front camera. The front camera can be arranged in an area of the main body with a small outer radius of the main body, for example, primarily in the head area of the flotation and diving aid, which is optimal for flow. No camera parts or supports for the front camera are located outside the main body. Consequently, the flow resistance of the flotation and diving aid is not affected by the front camera. The switch element mounted on the handlebar for starting and ending video recording enables simple, reliable and intuitive operation of the front camera even in sporty driving.

[0013] The driver of a floating and diving aid, primarily used in the leisure sector, can be filmed (self-filmed) by arranging a rear camera facing backward in front of a support surface and connecting it to control electronics. Advantageously, the rear camera is controlled and the video signals transmitted by it are detected by the same control electronics to which the front camera is also connected. This allows for a simple and cost-effective design of a video system with two cameras oriented in different directions.

[0014] The camera to be activated can be selected simply and easily by arranging a switching element on at least one handle for switching between the two cameras, each of which is recording video. The switching element, like the switch element, is arranged on the handle of the flotation and diving aid and is thus easily accessible to the operator. Advantageously, the switch element is mounted on one handle of the flotation and diving aid, and the switching element is arranged on the other handle.

[0015] In order to monitor the currently taking video recordings, it can be provided that the display is connected to the camera's control electronics and is designed to display the recordings being taken with the respectively selected camera. Preferably, the control electronics and the display can also play back already recorded video sequences, so that, for example, video sequences can be evaluated and deleted to free up memory space for further video recordings.

[0016] If the LCD display of the display, the rear camera, and the control electronics are arranged in a waterproof, one-piece or two-part housing, the components can be correctly oriented and arranged to prevent vibrations. In a two-part design, the housing parts are preferably connected to each other in a waterproof manner. This waterproof design prevents water from entering the housing from the outside, nor does water from the overflow space of the flotation and diving aids. The integration of the components in the one-piece or two-part housing ensures that their electrical connections are short and less susceptible to interference.

[0017] The display of video recordings and the recording of videos using the rear camera can be achieved 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 entering the housing.

[0018] According to a preferred embodiment of the present invention, the control electronics are connected to the motor control via a data bus, the switching signals of the switching elements and / or the conversion elements are transmitted to the motor control, and the control electronics are configured to query the motor control for the switching signals of the switching elements and / or the conversion elements. The conversion elements and the switch elements can be assigned a dual function, i.e., they can be used to set operating parameters, for example, for controlling the drive motor or for controlling video recording, based on menu selections. This achieves a high degree of reliability, since even in the event of a failure of the control electronics of the video system, the motor control can still be controlled via the switching elements or the conversion elements.

[0019] To prevent inadvertent activation of video recording, for example, when transporting or storing the flotation and diving aid outside of water, the control unit can be configured to only record video when voltage is applied to the electric motor of the water accelerator and to prevent video recording when voltage is absent. To determine whether voltage is present at the electric motor, for example, the power level set at the motor control unit can be queried. Advantageously, the flotation and diving aid includes a device for preventing the flotation and diving aid from being driven even when the electric motor is rotating. This can be achieved, for example, by mechanically decoupling the electric motor from the propeller.

[0020] To prevent video recording from being shortened due to storage space issues, the control unit can be configured to enable video recording when the available storage capacity of the memory for video recording equals or exceeds a predetermined limit value, and to disable video recording when the available storage capacity of the memory for video recording falls below a predetermined limit value. Furthermore, the control unit can be configured to interrupt video recording when the available storage capacity of the memory for video recording falls below a predetermined second limit value. The two limit values can be selected to be the same. Advantageously, the limit value can be configured to correspond to a higher storage capacity than the second limit value. When the storage capacity allows for a sufficiently long recording time, video recording can be started. If the storage capacity reaches a lower limit required for the functionality of the video system, the ongoing video recording can be interrupted.

[0021] A preferred variant of the present invention provides for the control unit to have a radio port, in particular a Wi-Fi / WLAN port and / or a Bluetooth port, and to be designed to transmit video data and / or receive software updates for all hardware components of the flotation and diving aid, such as for operating the camera and / or for operating the display and / or for the motor control and / or for battery management (battery control unit), via the radio port. Video data can be easily transferred to an external storage device, such as a smartphone, laptop, or PC. The video system software can be adapted to the latest developments. Transferring software updates for the motor control unit enables additional functions of the flotation and diving aid. This allows, for example, the driving characteristics of the flotation and diving aid to be adapted to the driver's preferences or individually configured, or newly developed software sequences for the motor control unit to be transferred.

[0022] To also record sound, it can be provided that a microphone is provided for the front camera and / or the rear camera, and the recorded audio signal is fed to the control unit. The sound signal is thus recorded together with the video signal of the corresponding active camera. It is cost-effective to provide only one camera with a microphone. For example, the microphone can receive the sound signal regardless of whether the camera is currently active.

[0023] Faultless 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 port, in particular a USB port, and a data cable.

[0024] In order to achieve a faultless 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 port, in particular a MIPI port.

[0025] A simple and secure fixing of the front camera at a forward viewing angle relative to the travel direction of the flotation and diving aid can be achieved in that the front camera is arranged in a waterproof camera housing, the waterproof camera housing is accommodated in a front camera receptacle inside the main body and is fixed to the main body of the flotation and diving aid, the main body housing has a camera lead-through in the viewing direction of the front camera, a transparent disk is arranged in the camera lead-through, and the transparent disk closes the waterproof camera housing at the front side.

[0026] It is particularly preferred that the front camera housing be spatially connected to the overflow space of the flotation and diving aid. The overflow space of the flotation and diving aid is connected to the surrounding water via a water inlet and a water outlet. During operation of the flotation and diving aid, water flows into the overflow space. This allows for precise control of the flotation and diving aid's buoyancy. Electrical components of the flotation and diving aid, such as the electric motor, any required batteries, or the motor control unit, can be arranged in the overflow space in a correspondingly sealed manner. Heat losses from the electrical components are effectively dissipated. On land, water flows out of the overflow space via the water inlet and outlet, significantly reducing the weight of the flotation and diving aid. By designing the camera housing to be waterproof, the camera housing can be arranged in the front camera housing connected to the overflow space and surrounded by water during flotation and diving operation. This eliminates the need to separately seal the front camera housing from the outside and inside relative to the overflow space. This allows for a simple design of the main body of the flotation and diving aid.

[0027] Advantageously, the transparent disk or the disk housing holding the transparent disk can be sealed relative to the camera lead-through, or a water-permeable gap can be formed between the transparent disk or the disk housing holding the transparent disk and the camera lead-through. The seal prevents water from flowing into the main body in the area of the camera lead-through. Furthermore, the transparent disk or disk housing can be securely connected to the main body via the seal, thereby achieving greater stability for the camera holder. This allows for a simpler installation if the transparent disk or disk housing is not waterproofly connected to the camera lead-through. This arrangement is particularly advantageous when the front camera is enclosed in a waterproof camera housing, and the front camera receptacle of the camera housing is connected to the overflow space of a flotation and diving aid. Water flowing into the main body between the edge of the transparent disk or disk housing and the camera lead-through thus enters the overflow space, which is always filled with water. Advantageously, a non-sealed transparent disk or transparent disk housing can be easily removed or replaced for maintenance.

[0028] Simple alignment of the transparent disk or the disk housing in the circumferential direction relative to the main body can be achieved by embodying the transparent disk and / or the disk frame of the disk housing holding the transparent disk in an oval shape.

[0029] Precise alignment of the disk housing relative to the camera housing in the circumferential direction and in the axial direction can be achieved by sealingly connecting the disk housing to the camera housing and by having locking elements that predetermine a clear alignment of the disk housing relative to the camera housing in the axial direction and in the circumferential direction. If the alignment of the disk housing relative to the main body in the circumferential direction is also predetermined, for example by embodying the transparent disk or disk frame in an oval shape, then a precise alignment of the front camera arranged in the camera housing relative to the main body of the flotation and diving aid can be achieved.

[0030] A wired connection between the front camera and the control electronics can be achieved by closing the camera housing at the rear by a housing closure that can be fitted waterproofly onto the camera housing and by guiding a data line for transmitting the video data to the control unit waterproofly through the housing closure.

[0031] According to a particularly preferred variant of the present invention, it can be provided that the main body is designed to be reinforced in the area of the front camera receptacle, thereby preventing vibrations of the main body in the area of the front camera receptacle and vibrations of the front camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be described in detail below based on the embodiments shown in the accompanying drawings.

[0033] Figure 1 A flotation and diving aid is shown in a perspective side view from the rear.

[0034] Figure 2 Shown in perspective side view from the front Figure 1 The flotation and diving aids shown in

[0035] Figure 3 Shown in a perspective side view from the rear Figure 1 The flotation and diving aids shown in the area of the display are partially

[0036] Figure 4 Shown in side cross-sectional view Figure 1 The forward area of the flotation and diving aid shown in

[0037] Figure 5 The front camera assembly is shown in an exploded schematic diagram.

[0038] Figure 6 The flotation and diving aids are shown in an enlarged cross-sectional view. Figure 5 The area of the front camera assembly shown in Figure 4 The local part shown in

[0039] Figure 7 The enlarged sectional view shows the rear camera area. Figure 4 The partial shown in

[0040] Figure 8 A flow chart for controlling a camera is shown. DETAILED DESCRIPTION

[0041] Figure 1 The flotation and diving aid 10 is shown in a perspective side view from the rear. Figure 2 The perspective side view from the front is shown in Figure 1 The flotation and diving aid 10 is shown in FIG.

[0042] The floating and diving aid 10 has a main body 11. The main body 11 is composed of an upper part 11.6 and a Figure 2The upper part 11.6 is composed of the lower part 11.4 shown in the figure. The upper part 11.6 is equipped with two handles 16, which are arranged on both sides of the main body 11. The user can grip the handles 16 and control the floating and diving aid 10 with the operating elements 16.1 installed on the handles 16. In particular, the motor power of the floating and diving aid 10 can be changed. A switch element 16.2 is additionally arranged on one of the handles 16 and a conversion element 16.3 is arranged on the opposite handle 16. The user who grips the handles 16 places his upper body on the support surface 11.3 in the area behind the display 20 on the upper part 11.6. In this position, the user can easily read the display 20 and operate the operating elements 16.1, the switch element 16.2 and the conversion element 16.3. A fixing device 11.7 for fixing a safety belt system is installed on the support surface 11.3, by means of which the user can be fastened to the floating and diving aid 10. A locking element 12.1 is arranged in front of the support surface 11.3, which is used for the locking element located behind it. Figure 4 The charging socket 12 is shown in FIG. The battery contained in the main body 11 can be charged via the charging socket 12.

[0043] A support handle 11 . 2 is arranged on the side of the main body 11 , on which the floating and diving aid 10 can be supported outside the water.

[0044] In the direction of travel, in front of the display 20 and between the two handles 16, a removable cover 14 is fastened to the body 11. Figure 2 As shown, the exhaust port 15.1 is provided in the cover 15, which is provided in the main body 11 and Figure 4 The overflow space 19 shown in FIG.

[0045] If you can Figure 2 As can be seen in the figure, a water inlet 15.2 is provided in the region of the head 11.1, through which water can flow into the overflow space 19. The overflow space 19 can be vented via the vent 15.1 of the cover 14. The buoyancy of the floating and diving aid 10 is adjusted by the overflow space 19 filled with water, that is, a predetermined buoyancy is maintained, so that floating and diving operations are possible. Figure 1 The tail section 11.5 shown in FIG. 1 is provided with a water outlet 15.3, which is covered by a sheet and is also connected to the overflow space 19. As soon as the floating and diving aid 10 enters the water, the overflow space 19 is filled with water, which enters through the water inlet 15.2 and the water outlet 15.3. As soon as the floating and diving aid 10 switches to driving operation, a flow is generated in the overflow space 19. For this purpose, water enters the overflow space 19 through the water inlet 15.2. The water flows through the overflow space 19 and simultaneously flushes the electrical components held in the overflow space 19 from all sides, such as the electrical components in the overflow space 19. Figure 4The electric motor 30 shown in FIG. 1 or a corresponding battery is used to drive the flotation and diving aid 10. To this end, the water absorbs the power loss of the electrical components and cools them. After flowing through the overflow space 19, the water leaves the overflow space through water outlets 15.3, which are arranged symmetrically on both sides of the jet outlet 17 of the flow channel 18. A propeller (not shown) of the flotation and diving aid 10 is arranged in the flow channel 18. The propeller draws in water and ejects it out of the jet outlet 17, thereby driving the flotation and diving aid 10.

[0046] 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 in a largely rotation-free manner. The rotational energy of the water is converted into linear motion energy and thus used to drive the flotation and diving aid 10.

[0047] The main body 11 of the floating and diving aid 10 is made of plastic or a composite plastic. This makes the floating and diving aid 10 lightweight, so that it can be carried by one person outside the water. The head top 11.8, which forms the front area of the head 11.1, is made of an elastic material, such as rubber or silicone. This increases the impact load resistance of the floating and diving aid 10 in the area of the head 11.1. Figure 5 and Figure 6 The transparent disk 61 of the front camera assembly 60 shown in detail in FIG is introduced into the main body 11 of the floating and diving aid 10. The transparent disk 61 is fixed to the main body 11 in the middle and pointing in the direction of travel.

[0048] Figure 3 Shown in a perspective side view from the rear Figure 1 The figure shows a detail of the floating and diving aid 10 in the area of the display 20. The display 20 is used, in particular, to display operating parameters of the floating and diving aid 10, such as the current power level of the drive unit, the driving speed, or the diving depth, as set by the driver via operating element 16.1. A transparent display cover 21 is shown half-open. The transparent display cover 21 is made of plexiglass. An LCD display device 22 is located behind the transparent display cover 21. The LCD display device 22 is housed in an LCD display device receptacle 23.1 of a display housing 23. A rear camera 50 is located below the LCD display device 22. The rear camera 50 is held in a rear camera receptacle 23.2 of the display housing 23. The rear camera 50 looks through the transparent display cover 21 toward the support surface 11.3. Therefore, during operation, the rear camera 50 detects, in particular, the driver's face resting on the support surface 11.3 of the floating and diving aid 10.

[0049] Figure 4 Shown in side cross-sectional view Figure 1 The front area of the floating and diving aid 10 is shown. Identical components are provided with the same reference numerals.

[0050] The underwater drive unit is arranged within the body 11. In this exemplary embodiment, the underwater drive unit is equipped with an electric motor 30, an electronics housing 40, a motor shaft 34 made of carbon fiber reinforced plastic, which has a surrounding outer tube 34.1, and a propeller (not shown).

[0051] The motor control unit (not shown) is arranged in the electronics housing 40 and is waterproofly enclosed by the electronics housing 40. The electronics housing 40 consists of two half-shells and is opened by removing one half-shell. Only one half-shell is shown in the selected sectional view. The second half-shell (not shown) rests waterproofly on the closing surface of the first half-shell via a circumferential second closing surface. 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. To this end, a sealing section 41.1 connected to the opening section 41 is fitted onto the motor housing 33 of the electric motor 40 at its end. The gap formed between the sealing section 41.1 and the motor housing 33 is sealed by a sealing element 42. The electronics housing 40 is thus waterproofly connected to the motor housing 33 of the electric motor 30. An electrical connection between the motor control unit and the electric motor 30 can be laid through the opening section 41.

[0052] The electronic device housing 40 is held in the overflow space 19 by means of fastening elements. The overflow space 19 has an overflow opening 19.1 through which water can flow into the overflow space 19. The electric motor 30 is also arranged in the overflow space 19. The electric motor 30 is fixed to the main body 11.

[0053] The motor shaft 50 leads from the electric motor 30 within the outer tube 34.1 into the flow channel 18 of the floating and diving aid 10. The flow channel 18 extends from the inlet 18.4 on the underside of the floating and diving aid 10 to the jet outlet 17 on its tail 11.5, as shown in FIG. Figure 2 . The flow channel can be integrally formed in the body 11. In this embodiment, the flow channel 18 consists of an upper shell and a lower shell, which are connected to each other by suitable fasteners. A guide element 18.1 is provided in the region of the inlet 18.4, through which the water flows and which forms the lower support of the flotation and diving aid 10.

[0054] A completely encapsulated underwater drive unit is formed by a sealed, pluggable connection of the electronic equipment housing 40 with the motor housing 33, the outer tube 34.1 on the motor housing 30 and a seal on the propeller side (not shown) between the outer tube 34.1 and the motor shaft 40. The underwater drive unit can be arranged in a water-fillable area within the body 11 of the floating and diving aid 10. In this embodiment, the electric motor 30 and the motor control arranged in the electronic equipment housing 40 are arranged in the overflow space 19, while the outer tube 34.4 with the motor shaft 34 is arranged in the flow channel 18. When the floating and diving aid 10 is submerged, the overflow space 19 is filled with water via the overflow opening 19.1 and the water inlet 15.2 and the water outlet 15.3, wherein the displaced air escapes via the exhaust opening 15.1, as in Figure 2 As shown in FIG. When the flotation and diving aid 10 moves in the water, a flow is generated within the overflow space 19, with water flowing into the water inlet 15.2 located at the head portion 11.1 and out again through the water outlet 15.3 arranged at the tail portion 11.5. The flowing water effectively cools the electric motor 30 and the motor control unit. Heat losses are quickly dissipated, allowing the electric motor 30 and the corresponding motor control unit to be configured with extremely high efficiency.

[0055] The electric motor 30 drives the propeller via a motor shaft 34. The propeller generates a water flow in the flow channel 18 from the inlet 18.4 to the jet outlet 17, thereby driving the flotation and diving aid 10. The rotor 32 of the electric motor 30 is mounted on the rotor section of the motor shaft 34 and bonded thereto. The stator 31 of the electric motor 30 is arranged around the rotor 32. The stator 31 is cast into the motor housing 33 using a casting compound and is thus thermally coupled to the motor housing 33. This effectively dissipates heat losses from the electric motor 30 to the motor housing 33 and, from there, to the water flowing through.

[0056] In the area of the head 11.1 of the floating and diving aid 10, a front camera assembly 60 is arranged in a front camera receiving area 80, as shown in FIG. Figure 6 The area indicated by VI is shown enlarged in FIG.

[0057] The area around the rear camera 50, indicated by VII, is Figure 7 Shown enlarged in FIG.

[0058] Figure 5 The front camera assembly 60 is shown in an exploded view.

[0059] Transparent disk 61 has an oval outer surface 61.1. It is equipped with two disk sealing elements 61.3. Furthermore, two crescent-shaped aperture elements are assigned to oval transparent disk 61.2. The aperture elements are shaped so that their outer contour follows the outer contour of transparent disk 61.2, and a perfectly circular see-through area 61.2 is recessed in the center of transparent disk 61.2.

[0060] A disc housing 63 is arranged facing the transparent disc 61. The disc housing 63 comprises a disc frame 63.1, a subsequent locking section 63.2, and a cylindrical projection 63.6 for closing. The disc frame 63.1 includes an oval recess into which the transparent disc 61 can be tightly inserted via a disc sealing element 61.3. Alternatively or additionally, it is conceivable to glue the transparent disc 61 along its side 61.1 into the oval recess of the disc frame 63.1. The disc frame 63.1 is designed so that when the front camera assembly 60 is installed, the aperture element 62 is held in position against the transparent disc 61.

[0061] The front camera assembly 60 is also equipped with a camera housing 64. This camera housing 64 has a cylindrical first housing section 64.1, which faces the projection 63.6 of the disk housing 63. Adjacent to the first housing section 64.1 is a second housing section 64.2, whose outer diameter is widened relative to the first housing section 64.1. Following the second housing section 64.2 is a third housing section 64.3, which has a substantially rectangular outer and inner contour. A cylindrical fourth housing section 64.4 is molded onto the third housing section 64.3. The fourth housing section has an outer diameter that is further increased relative to the second housing section 64.2. Two locking bolts 64.5 are arranged at an offset angle on the side of the first housing section 64.1, pointing toward the disk housing 63. In the selected view, only one of the locking bolts 64.5 is visible; the other locking bolt 64.5 is obscured by the first housing section 64.1. Furthermore, a screw projection 64.6 is arranged on the side of the first housing section 64.1, pointing toward the disk housing 63. The screw projection 64.6 is arranged at an angle halfway between the two locking pins 64.5 and relative to the center axis of the camera housing 64. The screw projection 64.6 and the locking pin 64.5 are integrally formed onto the end face of the second housing section 64.2 and onto the side face of the first housing section 64.1. The screw projection 64.6 and the locking pin 64.5 extend beyond the end face closure of the first housing section 64.1 of the camera housing 64, pointing toward the disk housing 63.

[0062] The first housing section 64.1 has a cylindrical recess along its longitudinal center axis, into which the projection 63.6 of the disk housing 63 can be inserted. To achieve a waterproof connection between the camera housing 64 and the disk housing 63, two circumferential sealing grooves 63.5 are formed in the projection 63.6 of the disk housing 63. A disk housing sealing element 63.7 can be inserted into each of these sealing grooves 63.5. The disk housing sealing element 63.7 is installed between the sealing grooves 63.5 of the projection 63.6 and the inner surface of the first housing section 64.1, thereby sealing the transition gap.

[0063] The locking section 63.2 is designed eccentrically relative to the projection 63.6. To this end, it extends radially beyond the projection 63.6 in a circumferential manner. The locking section 63.2 thus forms a stop for the first housing section 64.1 of the camera housing 64. Therefore, the locking section limits the extent to which the disk housing 63 can be inserted into the first housing section 64.1. The locking section 63.2 has a latching step 63.3 facing the locking pin 64.5. When the projection 63.6 is inserted into the first housing section 64.1 of the camera housing 64, the locking pin 64.5 engages with the latching step 63.3 of the locking section 63.2. This ensures precise circumferential alignment of the disk housing 63 relative to the camera housing 64. The spiral projection 64.6 of the camera housing 64 is aligned with the spiral perforation 63.4 on the outer edge of the locking section 63.2. When the front camera assembly 60 is installed, the fastening screw 60.1 is passed through the screw penetration 63.4 and screwed into the screw projection 64.6 until its screw head abuts against the locking section 63.2, thereby holding the disc housing 63 axially relative to the camera housing 64.

[0064] Two camera housing flanges 64.7 are molded onto the fourth housing section 64.4 of the camera housing 64, facing each other and protruding laterally. Each camera housing flange 64.7 has a hole. The holes are used to secure the front camera assembly 60 to the main body 11 of the flotation and diving aid 10, wherein screws are passed through the holes and tightened to the main body 11.

[0065] A front camera 65 is arranged opposite the fourth housing section 64.4 of the camera housing 64. A camera plate 65.3 is assigned to the front camera 65, its camera lens 65.1, and its camera housing 65.2. The diameter of the camera lens 65.1 increases in the shape of a step 65.4 toward the camera housing 65.2. Screw-throughs 65.5 are provided in the corners of the camera plate 65.3 for securing the front camera 65 in the camera housing 64.

[0066] A housing closure 66 is arranged spaced apart from the front camera 65. The housing closure 66 has a hollow cylindrical sealing section 66.1, into which two circumferential, groove-shaped sealing ring receptacles 66.2 are formed. The housing closure 66 is closed on its side facing away from the camera housing 64 by a circular closure cover 66.3. The closure cover 66.3 has a larger diameter than the sealing section 66.1. A cable insertion opening 66.4 is formed into the closure cover 66.3 along its central axis. The cable insertion opening 66.4 is circumferentially surrounded by an annular web 66.6.

[0067] 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 is installed 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 the housing closure rests with its closure cover 66.3 against the camera housing 64. The connecting cable of the front camera 65 can be led out of the camera housing 64 through the cable lead-through 66.4.

[0068] Finally, the fixing clamp 67 of the front camera assembly 60 is shown. The fixing clamp 67 has opposing clamping flanges 67.1 on its sides, which are connected to a retaining area 67.3 via raised clamping tabs 67.2. A housing latch support 67.4 is formed into the retaining area 67.3. When the housing latch 66 is inserted into the camera housing 64, the fixing clamp 67 can press its retaining area 67.3 against the latch cover 66.3 of the housing latch 66, causing the fixing flange 67.1 to rest against the camera housing flange 64.7 of the camera housing 64. As already described with respect to the assembly of the camera housing 64, fastening screws can now be inserted through the aligned holes in the clamping flange 67.1 and the camera housing flange 64.7 and tightened to the main body 11 of the flotation and diving aid 10. This secures the front camera assembly 60 to the main body 11, with the fixing clamp 67 of the housing latch 66 being held axially by the retaining area 67.3. Thus, an unintentional opening of the housing closure 66 is avoided by the fixing clamp 67. When mounted, the annular web 66.6 passes through the housing closure support 67.4 of the fixing clamp 67.

[0069] Figure 6 The flotation and diving aid 10 is shown in an enlarged cross-sectional view. Figure 5 The area of the front camera assembly 60 is shown Figure 4 The area shown is Figure 4 This is indicated by the section denoted by VI.

[0070] exist Figure 5The front camera assembly 60 shown in the exploded schematic diagram is Figure 6 6. The camera housing 64 is shown assembled. For this purpose, an oval transparent disk 61 is inserted into a disk frame 63.1 of a disk housing 63. The transparent disk 61 is sealed relative to the disk housing 63 by a disk sealing element 61.3. As described above, the transparent disk 61 can also be bonded to the disk housing 64 in addition to or instead of the disk sealing element 61.3. The first housing section 64.1 of the camera housing 64 is pushed onto the projection 63.6 of the disk housing 63, so that its end face rests against the locking section 63.2 of the disk housing 63. The transition from the projection 63.2 to the first housing section 64.1 is sealed by a disk housing sealing element 63.7 inserted into the sealing annular groove 63.5 of the projection 63.6. The fastening screw 60.1 is guided through a screw thread 63.4 of the locking section 63.2 of the disk housing 63 to the screw projection 64.6 of the camera housing 64 and screwed into it. As a result, the screw head of the fastening 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. Figure 5 The illustrated locking bolt 64.5 engages in the latching step 63.3 of the locking section 63.2 and is precisely aligned relative to the camera housing 64. This allows precise axial and circumferential alignment of the front camera 65 mounted in the camera housing 64 relative to the disk housing 63 and the oval transparent disk 61.

[0071] To this end, the front camera 65 is inserted into the camera housing 64 so that the front closure of its camera lens 65.1 closes with the outer end of the first housing section 64.1. The camera lens 65.1 thus ends immediately before the aperture element 62. The camera lens 65.1 rests with its step 65.4 on a correspondingly designed inner step, which is circumferentially mounted on the outer closure at the end of the projection 63.6 of the disk housing 63. This ensures precise positioning of the front camera 65 in the axial direction. The camera housing 65.2 is arranged on a second housing section 64.2 that is widened in a stepped manner relative to the first housing section 64.1, while the rectangular camera plate 65.3 is inserted into the correspondingly rectangular third housing section 64.3. The camera housing 64 is closed at the end by a housing closure 66. The housing closure, with its sealing section 66.1, is pushed into the fourth housing section 64.4 of the camera housing 64 until it stops against the closure cover 66.3. The data line is not shown, which is a USB line in this case, and passes through the cable opening 66.4 of the closure cover 66.3. Figure 7 Control electronics 70 are shown connected.

[0072] The front camera assembly 60 is fixed in the front camera receptacle 83 of the main body 11. The front camera receptacle 83 is integrally formed into the interior of the main body 11. The front camera receptacle 83 opens toward the head end 11.8 via a camera insertion 81 in the outer shell of the main body 11. The camera insertion 81 has an oval shape, and the oval disc frame 63.1 of the disc housing 63 is inserted into the camera insertion 81. The main body 11 is formed with a camera stop 82 surrounding the camera insertion 81, against which the disc housing 63 rests with its locking section 63.2. The screw head of the securing screw 60.1 also rests against the camera stop 82. This prevents the securing screw 60.1 from being accidentally loosened. The locking section 63.2, which surrounds the camera insertion 81 and abuts against the camera stop 82, precisely defines the axial position of the front camera assembly 60. The oval shape of the transparent disk 61 and the disk frame 63.1 of the disk housing 63 ensure that they are precisely oriented in the circumferential direction relative to the camera lead-through 81, which is also elliptically shaped, of the main body 11. The described effective connection between the locking bolt 64.5 of the camera housing 64 and the latching step 63.3 of the disk housing 63 ensures that the camera housing 64 and the front camera 65 installed therein are precisely oriented in the circumferential direction relative to the disk housing 63 and the main body of the floating and diving aid 10.

[0073] Due to the waterproof embodiment of the front camera assembly 60, no sealing is required between the disc housing 63 and the body 11 in the area of the camera lead-through 81. Figure 4 As can be seen more clearly in the figure, the interior of the front camera receiving area and the front camera receiving portion 83 are spatially connected to the overflow space 19. Thus, water flowing past the sides of the disk housing 63 reaches the overflow space 19, which is always passed through during driving. However, it is also conceivable to form a gap between the disk housing 63 and the main body 11 in the area of the camera feedthrough 81 and seal it with adhesive, sealing material, or a sealing element. The overflow space 19 forms a front camera access area 87 to the front camera assembly 60. This provides access, for example, for maintenance or repair of the front camera 65.

[0074] If already targeted Figure 5 Said and Figure 6 Not visible in the selected cross-sectional view of FIG, the front camera assembly 60 is connected to the main body 11 by means of screws that pass through holes in the camera housing flange 64.7 and the clamping flange 67.1.

[0075] The main body 11 has an inwardly stepped main body section 84 facing the front camera assembly 60. The contour of this main body section 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, and 64.4 of the camera housing 64. Furthermore, the main body 11 is reinforced in the front camera accommodation area 80. For this purpose, vertically arranged reinforcement tabs 85 and horizontally arranged reinforcement beams 86 are incorporated into the front camera accommodation area 80. The reinforcement tabs support a frame 88 that at least partially circumferentially surrounds the front camera assembly 60. These reinforcement measures prevent deformation or vibration of the main body 11 in the front camera accommodation area 80, for example, when subjected to severe mechanical loads during high-speed floating operation. This prevents blurring of the video footage captured by the front camera 65, which could be caused by, for example, high-frequency vibrations of an insufficiently reinforced main body 11.

[0076] Figure 7 The enlarged cross-sectional view shows Figure 4 The detail shown in FIG and designated here by VII is in the region of the rear camera 50 . For this purpose, the rear camera 50 is arranged in a display 20 which is oriented in the direction of the support surface 11 . 3 of the floating and diving aid 10 and towards the driver sitting thereon.

[0077] The display 20 is covered by a transparent display cover 21. The display housing 23 rests on the outer periphery of the display cover 21 with a display housing frame 23.5. To prevent water from entering, a groove 23.4 is formed into the contact surface of the display housing frame 23.5, into which a first sealing element 23.3 is inserted. A rear camera receptacle 23.2 is formed in the display housing frame 23.5. The rear camera 50 is inserted into the rear camera receptacle 23.2 with its rear camera housing 51. The LCD display 22 is laterally spaced apart from the rear camera 50 and is held in the LCD display receptacle 23.1 of the display housing 23. An HMI housing 24 (HMI: Human Machine Interface) is flange-mounted to the display housing 23. Its edge rests against the display housing frame 23.5 of the display housing 23. For precise positioning, HMI housing tabs 24.3 are molded around the edges of the HMI housing 24 that surround the display housing frame 23.5. 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 the HMI housing groove, thereby sealing the HMI housing 24 relative to the display housing 23. Screws 21.1 penetrate the edges of the display cover 21, display housing frame 23.5, and HMI housing 24 and are screwed into corresponding nuts 21.2 on the rear side. This connects the display cover 21, display housing 23, and HMI housing 24 to one another.

[0078] The control electronics 70 are installed and fastened in the HMI housing 24. The HMI housing 24 has a cable gland 24.4 in the form of a notch on the rear side. A plug 24.5 is inserted into the cable gland 24.4. The plug 24.5 has two axially spaced plug grooves 24.6. A sealing ring 24.7 is inserted into the plug grooves 24.6, thereby sealing the plug 24.5 relative to the HMI housing 24. The plug 24.5 has a central hole relative to the sealed cable gland. The data cable of the front camera 65 can be introduced into the HMI housing 24 through the central hole.

[0079] The front camera 65 and the rear camera 50 are each connected to the control electronics 70 via data cables. The front camera is connected to the control electronics 70 via a USB 2.0 port, and the rear camera 50 is connected via a MIPI port. The control electronics 70 is connected to the motor control unit located in the electronics housing 40 via a bus system. Furthermore, the LCD display 22 is connected to the control electronics 70. The operating element 16.1, the switch element 16.2, and the conversion element 16.3 located on the handle 16 are connected to the motor control unit. The operating element 16.1 is used to control the water acceleration device of the flotation and diving aid 10 and, in particular, the power of the electric motor 30. At least some functions of the cameras 50 and 65 can be controlled via the switch element 16.2 and the conversion element 16.3. To do this, the control electronics 70 queries the motor control unit in short cycles for the respective switching states of the switch element 16.2 and the conversion element 16.3. Based on the operation of the switch element 16.2 and the conversion element 16.3, the video images of the front camera 65 and the rear camera 50 can be displayed on the display 20. Video recordings can also be recorded via a memory connected to the control electronics 70. An SD memory card is used as the memory. The control electronics 70 also has a Wi-Fi port. Video data can be transferred to an external data medium, such as a smartphone or computer, via the Wi-Fi port. Furthermore, the Wi-Fi port is designed to receive software updates for all hardware components of the flotation and diving aid, such as those for operating the camera and / or the display and / or the motor control unit and / or the battery management (battery control unit). Motor control unit software updates are transmitted from the control electronics 70 to the motor control unit via a data bus, here a CAN data bus. Furthermore, it is conceivable to transmit diagnostic data from the flotation and diving aid 10 to an external device via the Wi-Fi port. This diagnostic data could, for example, relate to the battery status or errors in the drive system. It is also conceivable to provide a Wi-Fi port or a Bluetooth port instead of the Wi-Fi port. The digital connection between the motor control unit and the control electronics 70 allows the current operating parameters of the flotation and diving aid 10 to be displayed on the display 20.

[0080] Figure 8A flow chart for controlling cameras 50, 65 is shown. Starting from main menu 90, query SE 91.1 inquires whether switch element 16.2 has been actuated. If so, a subsequent query, Power status 91.2, inquires about the current power status of the motor control unit for electric motor 30. If the power status is set to 0, meaning no voltage is applied to electric motor 30, a first message output 92.1 indicates on display 20 that the power status should be set to at least 1. This query prevents inadvertently starting video recording when flotation and diving aid device 10 is not operating. Preferably, flotation and diving aid device 10 has a device that decouples energy transfer to the propeller, allowing video recording to be performed even when flotation and diving aid device 10 is stationary. Following first message output 92.1, the process returns to main menu 90. If query Power status 91.2 indicates that voltage is applied to electric motor 30, a first query Memory capacity 91.3 checks the available memory capacity for video recording. If the storage capacity falls below a predetermined limit, a second message output 92.2 indicates that there is insufficient storage capacity for video recording and that the previous file must be deleted. The process then returns to main menu 90. However, if the available storage capacity in the first query 91.3 for storage capacity equals or exceeds the limit, video recording is performed using front camera 65 in a block before recording 93.1. The video data captured by front camera 65 is then displayed on display 20 and recorded in digital memory. During video recording, a second query 91.4 inquires about the switching state of switch element 16.2, and a second query 91.5 for storage capacity inquires about the available storage capacity. If switch element 16.2 is operated during video recording, video recording is terminated and the process returns to main menu 90. If the storage capacity of the memory reaches the second limit during video recording using front camera 65, video recording is terminated and the user interface returns to main menu 90. During video recording using front camera 65, a first query 91.6 also inquires about the switching state of selector switch 16.3. If the selector switch is pressed, the video recording currently being performed by front camera 65 ends, and a video recording is performed with rear camera 50, facing backward, in the after-frame recording 93.2. This video recording is also stored and displayed on display 20. Similar to the recording with front camera 65, during the recording with rear camera 50, a third query SE 91.7 queries the switching state of switch element 16.2, a third query storage capacity 91.8 queries the available storage capacity of the data memory, and a second query US 91.9 queries the switching state of switch element 16.3. The video recording ends when switch element 16.2 is actuated or when the storage capacity falls below a second limit value, and the user interface switches to main menu 90.By operating the switching element 16 . 3 , the video recording via the rear camera 50 is also ended and a new video recording via the front camera 65 is started.

[0081] Preferably, a limit value for the storage capacity is selected, for example, 2 GByte, when first querying the storage capacity 91.3, which is greater than a second limit value, for example 1 GByte, when second querying the storage capacity 91.5.

[0082] The arrangement of two cameras 50 and 65 enables video recording in the direction of travel and of the driver. Switch element 16.2 mounted on handle 16.1 and switching element 16.3, also mounted on handle 16.1, facilitate easy operation of the video system even in sport mode. A Wi-Fi port allows data to be exchanged with external devices. Through a digital connection between control electronics 70 and the engine control unit, data can also be sent to and received from the engine control unit and / or other hardware components for flotation and diving aids, such as those for operating the cameras and / or the display and / or battery management (battery control). This provides the video system with additional functionality, enabling software updates to be transmitted to the engine control unit and / or other hardware components. The integration of front camera 65 into main body 11 enables recording in the direction of travel. This integration of front camera 65 into main body 11 ensures minimal vibration and interference-free video recording. The video quality is significantly improved, in particular, by the additional reinforcement of front camera recording area 80 of main body 11.

Claims

1. A floating and diving aid (10) comprising: a body (11) having a flow channel (18) or being equipped with a flow channel (18), wherein: The flow channel (18) is equipped with a motor-driven water acceleration device, in particular a propeller; a support surface (11.3) for the upper body located on the upper side of the main body (11); a handle (16) mounted on the floating and diving aid (10), wherein an operating element (16.1) for controlling the water acceleration device by means of a corresponding motor control device is provided on the handle (16); and a display (20) facing the support surface (11.3) for displaying operating parameters of the floating and diving aid (10), characterized in that a front camera (65) oriented forward is integrated in the main body (11) before the support surface (11.3) in the direction of travel and is connected to the control electronics (70) so that the front camera (65) is designed For video recording, the control electronics (70) is configured to operate the front camera (65) and receive the camera signal, a switch element (16.2) for starting and ending video recording is arranged on at least one handle (16), the front camera (65) is arranged in a waterproof camera housing (64), the waterproof camera housing (64) is accommodated in a front camera accommodating portion (83) inside the main body (11) and is fixed to the main body (11) of the floating and diving aid (10), the main body shell has a camera lead-through portion (81) in the viewing direction of the front camera (65), a transparent disc (61) is arranged in the camera lead-through portion, and the transparent disc (61) closes the waterproof camera housing (64) at the front side.

2. The floating and diving aid (10) according to claim 1, characterized in that A rear camera (50) directed rearward is arranged in front of the support surface (11.3) and is connected to the control electronics (70). The rear camera (50) is designed for video recording.

3. The floating and diving aid (10) according to claim 1 or 2, characterized in that A switching element (16.3) for switching between a rear camera (50) and a front camera (65) for respectively recording video is arranged on at least one handle (16).

4. A floating and diving aid (10) according to any one of claims 1 to 3, characterized in that The display (20) is connected to the control electronics (70) of the rear camera (50) or the front camera (65) and is designed to display the recordings taken with the respectively selected rear camera (50) or front camera (65).

5. A floating and diving aid (10) according to any one of claims 1 to 4, characterized in that The LCD display device (22) of the display (20), the rear camera (50) and the control electronics (70) are arranged in a waterproof, one-piece or two-piece housing.

6. The floating and diving aid (10) according to claim 5, characterized in that The housing, which is constructed to be waterproof, is covered by a transparent display cover (21) at least in the area of the LCD display device (22) or in the area of the LCD display device (22) and the rear camera (50).

7. A floating and diving aid (10) according to any one of claims 1 to 6, characterized in that The control electronics (70) is connected to the motor control device via a data bus, transmits the switching signal of the switching element (16.2) and / or the conversion element (16.3) to the motor control device, and the control electronics (70) is configured to query the motor control device for the switching signal of the switching element (16.2) and / or the conversion element (16.3).

8. A floating and diving aid (10) according to any one of claims 1 to 7, characterised in that The control unit (70) is configured to enable video recording only when voltage is applied to the electric motor (30) of the water acceleration device, and to disable video recording when there is no voltage at the electric motor (30) of the water acceleration device.

9. A floating and diving aid (10) according to any one of claims 1 to 8, characterized in that The control unit (70) is configured to enable video recording when the storage capacity of the memory available for video recording corresponds to a predetermined limit value or exceeds a predetermined limit value, and to disable video recording when the storage capacity of the memory available for video recording falls below a predetermined limit value, and / or the control unit (70) is configured to interrupt video recording when the storage capacity of the memory available for video recording falls below a predetermined second limit value.

10. A floating and diving aid (10) according to any one of claims 1 to 9, characterised in that The control unit (70) has a radio port, in particular a Wi-Fi port / W-Lan port and / or a Bluetooth port, and is designed to transmit video data via the radio port and / or receive software updates for one or more hardware components of the floating and diving aid, such as for operating the rear camera (50) and / or the front camera (65) and / or for operating the display and / or for the motor control and / or for battery management.

11. A floating and diving aid (10) according to any one of claims 1 to 10, characterised in that The front camera (65) and / or the rear camera (50) are equipped with a microphone, and the recorded audio signal is transmitted to the control unit (70).

12. A floating and diving aid (10) according to any one of claims 1 to 11, characterised in that The front camera (65) is connected to the control unit (70) via a digital port, in particular a USB port, and a data cable.

13. A floating and diving aid (10) according to any one of claims 1 to 12, characterised in that The rear camera (50) is connected to the control unit (70) via a digital port, in particular a MIPI port.

14. A floating and diving aid (10) according to any one of claims 1 to 13, characterised in that The front camera receptacle (83) is spatially connected to the overflow space (19) of the flotation and diving aid (10).

15. A floating and diving aid (10) according to any one of claims 1 to 14, characterised in that The transparent disc (61) or the disc housing (63) holding the transparent disc (61) is sealed relative to the camera lead-in portion (81), or a water-permeable gap is constructed between the transparent disc (61) or the disc housing (63) holding the transparent disc (61) and the camera lead-in portion (81).

16. A floating and diving aid (10) according to any one of claims 1 to 15, characterised in that The transparent disc (61) and / or the disc frame (63.1) of the disc housing (63) for holding the transparent disc (61) are embodied in an oval shape.

17. A floating and diving aid (10) according to any one of claims 1 to 16, characterised in that The disc housing (63) is sealingly connected to the camera housing (64), and the disc housing (63) and the camera housing have locking elements which predetermine a clear orientation of the disc housing (63) relative to the camera housing (64) in the axial direction and in the circumferential direction.

18. A floating and diving aid (10) according to any one of claims 1 to 17, characterised in that The camera housing (64) is closed at the rear by a housing closure (66) that can be waterproofly fitted onto the camera housing (64), and a data line for transmitting video data to the control unit (70) is waterproofly passed through the housing closure (66).

19. A floating and diving aid (10) according to any one of claims 1 to 18, characterised in that The main body (11) is designed to be reinforced in the area of the front camera receptacle (83).

Images