WO2023094449A1 - Véhicule nautique motorisé - Google Patents

Véhicule nautique motorisé Download PDF

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Publication number
WO2023094449A1
WO2023094449A1 PCT/EP2022/082980 EP2022082980W WO2023094449A1 WO 2023094449 A1 WO2023094449 A1 WO 2023094449A1 EP 2022082980 W EP2022082980 W EP 2022082980W WO 2023094449 A1 WO2023094449 A1 WO 2023094449A1
Authority
WO
WIPO (PCT)
Prior art keywords
radar sensor
powered watercraft
powered
user
control unit
Prior art date
Application number
PCT/EP2022/082980
Other languages
English (en)
Inventor
Philip SVENINGSSON
Martin PRÅME MALMQVIST
Aleksandar RODZEVSKI
Dimitrios Triantafillidis
Kalle ERIKSSON
Original Assignee
Radinn Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Radinn Ab filed Critical Radinn Ab
Publication of WO2023094449A1 publication Critical patent/WO2023094449A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C9/00—Life-saving in water
    • B63C9/0005—Life-saving in water by means of alarm devices for persons falling into the water, e.g. by signalling, by controlling the propulsion or manoeuvring means of the boat
    • B63C9/0011—Life-saving in water by means of alarm devices for persons falling into the water, e.g. by signalling, by controlling the propulsion or manoeuvring means of the boat enabling persons in the water to control the propulsion or manoeuvring means of the boat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
    • B63B34/10—Power-driven personal watercraft, e.g. water scooters; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/10—Motor-propelled water sports boards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/22—Status alarms responsive to presence or absence of persons
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section

Definitions

  • the present disclosure relates to a powered watercraft. More specifically, the disclosure relates to a powered watercraft comprising a host device and a driveline configured to be received in the host device, wherein the driveline comprises a battery module a propulsion module configured to be powered by the battery module and a control unit configured to control battery power delivered to the propulsion module. Additionally, the present disclosure relates to the implementation of a dead man's switch, to ensure safety when a person falls off a powered watercraft.
  • Powered watercrafts such electrically powered watercrafts, such as what may be termed as personal watercrafts may be quite powerful watercrafts, and thus, it is necessary to ensure that such watercrafts are powered off when a user falls off such powered watercrafts.
  • the leash may for example include a magnet, and only when this magnet is positioned on a corresponding magnet on the powered watercraft, will power be transferred from the battery to the water jet, so that the watercraft can be powered on. Likewise, if a user falls off, the connection between the two magnets will be disconnected, and power will be turned off. Hereby, it is ensured that when a user falls off, power to the jet motor will be terminated and the watercraft will come to a stand-still.
  • a powered watercraft comprising a host device, and a driveline configured to be received in the host device, wherein the driveline comprises: a battery module, a propulsion module configured to be powered by the battery module, and a control unit configured to control battery power delivered to the propulsion module.
  • the powered watercraft further comprises at least one radar sensor, wherein the at least one radar sensor has a field of view including at least a part of a user.
  • the radar sensor provides radar sensor signals to the control unit, and the control unit is configured to determine a user presence based on the radar sensor signals from the at least one radar sensor.
  • the control unit is configured to terminate power transfer from the battery module to the propulsion module.
  • a method implementing a dead man's switch on a powered watercraft comprising a host device, and a driveline configured to be received in the host device.
  • the driveline comprises: a battery module, a propulsion module configured to be powered by the battery module, a control unit configured to control battery power delivered to the propulsion module, the powered watercraft further comprising at least one radar sensor, wherein the at least one radar sensor has a field of view including at least a part of a user, the method comprising: receiving radar sensor signals in the control unit, determining a user presence based on the radar sensor signals from the at least one radar sensor, and terminating power transfer from the battery module to the propulsion module in accordance with a determination that no user is present on the powered watercraft.
  • the at least one radar sensor and the control unit implement a dead man's switch for the powered watercraft.
  • the power to the propulsion unit is terminated when a user is bodily removed from control of the watercraft.
  • the host device containing the battery module and the propulsion module has an active surface.
  • the active surface may be configured to support a user during use of the powered watercraft.
  • An active volume may be defined above the active surface, the active volume being configured to accommodate at least a part of a user during use.
  • the active volume is defined by the field of view of the at least one radar sensor.
  • the radar sensor is facing forward.
  • the radar sensor is facing backwards,
  • the radar sensor is facing upward.
  • more radar sensors have different field of views, and may be facing in different directions.
  • the at least one radar sensor is powered by the battery module.
  • the radar sensor it is an advantage of powering the radar sensor by the battery module, as there is no need for any additional power supply. However, in some embodiments, it may be preferred to power the at least one radar sensor by a separate power supply. For example if the radar sensor is positioned at a position away from the battery module, a separate power supply may be advantageous.
  • the at least one radar sensor is provided in the battery module, such as integrated in a battery module surface, the battery module surface forming part of the active surface.
  • the at least one radar sensor may be arranged in a top surface of the battery module, the top surface of the battery module forming part of the active surface.
  • the at least one radar sensor may be arranged on the top surface of the battery module, the top surface of the battery module forming part of the active surface.
  • the battery module and the at least one radar sensor may be manufactured as one unit. This will e.g. ensure that the battery module including the radar sensor can be provided as a waterproof battery module including the at least one radar sensor.
  • the powered watercraft the powered watercraft comprises two or more radar sensors and thereby enable use of triangulation to determine user presence.
  • the at least one radar sensor comprises two sensors.
  • the two sensors may provide a field of view covering the watercraft including the at least part of a user.
  • Two sensors may be arranged at different positions of the powered watercraft.
  • the two sensors may have different fields of views i.e. no overlapping field of view.
  • the two sensors may have an overlapping field of view.
  • the two sensors may be arranged at the host device.
  • the two sensors may be arranged in/on a top surface of the host device.
  • the two sensors may be arranged at opposite sides of the host device.
  • the two sensors may be arranged at opposite sides of the top surface of the host device. Thereby, there may be a distance between the two sensors.
  • the distance may correspond to a length of the host device, the distance may correspond to two thirds of the host device length, the distance may correspond to half the host device length, the distance may correspond to one third of the host device length.
  • the two sensors may have different field of views. For examples, one of the two sensors may face backwards i.e. facing a rear side of the watercraft and the other one of the two sensors may face forwards i.e. facing a front side of the watercraft. Alternatively, the two sensors may have an overlapping field of view.
  • the two sensors may be arranged at different positions at/in/on the host device. In some embodiments, the two sensors may be provided adjacent each other, such as adjacent each other in/on a middle part of the host device, one sensor facing backwards and the other sensor facing forwards.
  • the two sensors may be arranged at the battery module.
  • the two sensors may be arranged in/on a top surface of the battery module.
  • the two sensors may be arranged at opposite sides of the top surface of the battery module.
  • the distance may correspond to a length of the battery module, the distance may correspond to two thirds of the battery module length, the distance may correspond to half the battery module length, the distance may correspond to one third of the battery module length.
  • the two sensors may have different field of views.
  • one of the two sensors may face backwards and the other one of the two sensors may face forwards.
  • the two sensors may have an overlapping field of view.
  • the two sensors may be arranged at different positions at/in/on the battery module.
  • the two sensors may be provided adjacent each other, such as adjacent each other in/on a middle part of the battery module, one sensor facing backwards and the other sensor facing forwards
  • the powered watercraft comprises at least two radar sensors for redundancy, thereby, even if one radar sensor is not functioning or has decreased functionality, an other radar sensor will still be functioning and the safety of the user will thus not be compromised.
  • the at least one radar sensor is a low power radar sensor.
  • the radar sensor may have a power consumption of less than 10 mWatts, such as of less than 5 mWatts, such as of less than 1 mWatts.
  • the radar sensor is a high precision, pulsed short-range radar sensor. In some embodiments, the radar sensor footprint is less than 100 mm2, such as less than 50mm2, such as about 30 mm2.
  • the radar sensor may be operated in the 60 GHz unlicensed ISM radio band.
  • the at least one radar sensor may be operated at about 24 GHz, at about 60 GHz, at about 79 GHz.
  • the radar sensor When operating at or above 60 GHz, it is an advantage that the radar sensor provides robust performance without interference from noise, dust or direct or in-direct light, such as sunlight.
  • the at least one radar sensor has an operational range of between 0,5- 10 meters, such as between 0,5-5 meters, such as between 0,5-2 meters, such as between 0,60 - 2 meters.
  • each radar sensor comprises a radar transmitter and a radar receiver.
  • the radar sensor may additionally comprise a radio and an antenna, such as a radio and an antenna for communication using Bluetooth, WiFi, Zigbee, etc.
  • a radar sensor is configured to emit a radar wave at the selected frequency; when the emitted radar wave hits an object within the 3D field of view of the radar sensor, a portion of the signal is reflected. This can be detected as an echo signal in the radar sensor. Typically, the echo signal has a lower frequency then the emitted signal. The difference between the current frequency and the received frequency is detected by the radar sensor as measured signal.
  • the radar sensor makes a single measurement, in some embodiments, the radar sensor makes continuous sweeps.
  • the radar sensor is a micro-radar sensor, such as a radar sensor based on micro-radar sensor technology.
  • a detection angle, such as a field of view, for the radar sensor may be up to 60 degrees, such as up to 50 degrees, such as up to 40 degrees. In some embodiments, the detection angle for the radar sensor may be between 30 and 50 degrees. In some embodiments the detection angle (or field of view) is specified as Half Power Beam width, HPBW, whereas outside of the field of view the output effect is decreased with at least 3dBm.
  • the number of radar sensors and the positioning of the radar sensors may be determined by the desired active volume, or the desired accuracy in dependence on the field of view of the radar sensor, or in dependence of the detection angle for the radar.
  • the at least one radar sensor is configured to detect materials with different dielectric constants.
  • the radar sensor may distinguish a person and an object using a determined shape of an object.
  • the powered watercraft comprises a processor for processing the received radar sensor signals to distinguish between an object being present within the active volume and a person being present within the active volume.
  • the at least one radar sensor may distinguish between an element, such as a body part, a foot, a piece of clothes, etc., covering the radar sensor and water covering the radar sensor, such as when the radar sensor is submerged in water.
  • the at least one radar sensor is configured to detect presence of a user both through proximity and through a blocked radar sensor, e.g. when an element, such as a foot, covers the radar, i.e. when the user/rider happens to stand on the at least one radar sensor.
  • the powered watercraft comprises one or more additional sensors, such as one or more of a gyroscope, an accelerometer, a GPS sensor, an rpm sensor, etc.
  • the processor receives the radar signals and additionally receives output signals from one or more of the additional sensors. The processor may determine presence or absence of a user based on both the radar signals and the output signals from the one or more of the additional sensors.
  • the powered watercraft comprises a processor for processing the received radar sensor signals to determine presence of a token, the token being a user token to be carried when operating the powered watercraft.
  • the token comprises at least one significant material, the significant material having a characteristic profile when processing radar sensor signals.
  • the characteristic profile comprises a characteristic dielectric constant.
  • the control unit and the processor can be configured to particularly to detect the token. This may in some instances provide a more simple processing of radar sensor signals, as only presence or absence of the at least one significant material needs to be determined.
  • the radar sensor comprises the processor, in some embodiments the processor is provided in the driveline, in some embodiment the control unit comprises the processor.
  • control unit receives processed radar sensor signal from the processor, and determines to terminate power to the propulsion unit based on the received processed radar sensor signals.
  • the at least one radar sensor is based on pulsed coherent radar technology.
  • the processor is configured to determine a mass of a user based on the received radar sensor signals.
  • control unit is configured to control one or more driveline parameters based on the determined mass of a user, the driveline parameters including battery capacity, amount of power provided to the propulsion module, motor current, maximum motor current, motor rpm, maximum motor rpm and throttle curve parameters.
  • control unit is configured to receive radar sensor signals from the at least one radar sensor and to determine user gestures based on the radar sensor signals.
  • control unit is configured to control driveline performance based on the determined gestures, driveline performance including increase of speed or decrease of speed of the powered watercraft.
  • control unit is configured to control driveline parameters based on the determined gestures, the driveline parameters including battery capacity, amount of power provided to the propulsion module, motor current, maximum motor current, motor rpm, maximum motor rpm and throttle curve parameters.
  • the throttle curve sets the relationship between degree of activation of a handle, such as a remote handle, and the actual throttle command delivered to the propulsion module.
  • the curve is linear, so that, 0% activation of the handle corresponds to a 0% throttle command, 50% activation of the handle corresponds to 50% throttle, 100% activation of the handle (complete de-press) corresponds to 100% throttle, and so on.
  • throttle curve parameters may be adjusted to adjust this characteristic. For example, a number of parameters, corresponding e.g. to points on the throttle curve, may be set, and the resulting throttle curve determines the response to an activation of the handle.
  • Figs, la-lc shows a powered watercraft according to embodiments of the present disclosure.
  • Fig. 2 shows an exemplary powered watercraft in more detail.
  • Figs. 3a-3d shows exemplary powered watercrafts including at least one radar sensor in more detail.
  • Figs, la-lc show a powered watercraft 100 comprising a host device 102, and a driveline 106 configured to be received in the host device 102, wherein the driveline 106 comprises: a battery module 110, a propulsion module 108 configured to be powered by the battery module 110, a control unit 104 configured to control battery power delivered to the propulsion module 108.
  • the powered watercraft 100 further comprising at least one radar sensor 118, wherein the at least one radar sensor 118 has a field of view 128 including at least a part of a user, such as a part of a user operating the powered watercraft, the radar sensor 118 providing radar sensor signals to the control unit 104, wherein the control unit 104 is configured to determine a user presence based on the radar sensor signals from the at least one radar sensor 118, and in accordance with a determination that no user is present on the powered watercraft, the control unit is configured to terminate power transfer from the battery module 110 to the propulsion module 108.
  • the at least one radar sensor 118 may be provided in the battery module 110 and may be powered by the battery module.
  • the powered watercraft comprises two radar sensors 118 and they may both be provided in the battery module 110 and may be powered by the battery module.
  • the at least one radar sensor may be provided at or in the host device. In some embodiments the at least one radar sensor being provided at or in the host device may be powered by a separate power supply 120.
  • the at least one radar sensor 118 and the control unit 104 implements a dead man's switch for the powered watercraft 100.
  • the powered watercraft may comprise a processor 124 for processing the received radar sensor signals.
  • the processed radar sensor signals may then be provided to the control unit for controlling power delivered to the propulsion unit accordingly.
  • the processor may be provided in the battery module or in the propulsion module.
  • the radar sensor such as a radar sensor unit comprises the processor.
  • the host device 102 containing the battery module 110 and the propulsion module has an active surface 112, the active surface 112 being configured to support a user 115 during use of the powered watercraft 100.
  • An active volume 114 is defined above the active surface 112, the active volume 114 being configured to accommodate at least a part of a user 115 during use.
  • the user may carry or wear a token 126.
  • the processor 124 may process the received radar sensor signals to determine presence of the token 126.
  • the token 126 is a user token 126 to be carried when operating the powered watercraft.
  • the token 126 may comprise at least one significant material, the significant material having a characteristic profile when processing radar sensor signals.
  • the at least one radar sensor 118 may be provided in the battery module 110.
  • the radar sensor may be integrated in a battery module surface 122, the battery module surface 122 forming part of the active surface 112.
  • the powered watercraft may comprise one radar sensor as seen in Figs. 3a, 3b and 3d, or the powered watercraft may comprise two or more radar sensors 118 as seen in Fig. 3c.
  • the processor may then use triangulation to determine user presence.
  • the control unit 104 is configured to receive radar sensor signals from the at least one radar sensor 118 and to determine user gestures based on the radar sensor signals.

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  • Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Electromagnetism (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Traffic Control Systems (AREA)

Abstract

L'invention concerne un véhicule marin motorisé (100) comprenant un dispositif hôte (102), et une chaîne cinématique (106) configurée pour être reçue dans le dispositif hôte, la chaîne cinématique comprenant : un module de batterie (110), un module de propulsion (108) configuré pour être alimenté par le module de batterie, une unité de commande (104) configuré pour commander la puissance de batterie délivrée au module de propulsion, le véhicule marin motorisé comprenant en outre au moins un capteur radar (118), ledit au moins un capteur radar ayant un champ de vision comprenant au moins une partie d'un volume actif (114), le capteur radar fournissant des signaux de capteur radar à l'unité de commande (104), l'unité de commande étant configurée pour déterminer une présence d'utilisateur sur la base des signaux de capteur radar provenant dudit au moins un capteur radar, et en fonction d'une détermination qu'aucun utilisateur n'est présent sur le véhicule marin motorisé, l'unité de commande est configurée pour terminer le transfert de puissance du module de batterie au module de propulsion.
PCT/EP2022/082980 2021-11-23 2022-11-23 Véhicule nautique motorisé WO2023094449A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE2151425-2 2021-11-23
SE2151425A SE2151425A1 (en) 2021-11-23 2021-11-23 A powered watercraft

Publications (1)

Publication Number Publication Date
WO2023094449A1 true WO2023094449A1 (fr) 2023-06-01

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Citations (4)

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US20160259037A1 (en) * 2015-03-03 2016-09-08 Nvidia Corporation Radar based user interface
US20190228634A1 (en) * 2018-01-22 2019-07-25 Robert Bosch Llc Surface Water Sport Monitoring System for Improving Driver Awareness
WO2021216926A1 (fr) * 2020-04-22 2021-10-28 Kai Concepts, LLC Batterie destinée à être utilisée dans une embarcation
US20210347442A1 (en) * 2020-04-22 2021-11-11 Kai Concepts, LLC Watercraft device with hydrofoil and electric propulsion system

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DE4420798C2 (de) * 1994-06-16 1996-10-02 Barbara Catrin Parr Selbststeueranlage für Wasserfahrzeuge
GB2444967A (en) * 2006-06-20 2008-06-25 Vision Eng Marine safety system
GB2471314B (en) * 2009-06-25 2017-04-26 Jbt Marine Ltd Killswitch
ITUB20155776A1 (it) * 2015-11-20 2017-05-20 Antonio Ricca Un sistema di sicurezza
ITUB20155770A1 (it) * 2015-11-20 2017-05-20 Antonio Ricca Un sistema di sicurezza
US11618538B2 (en) * 2019-02-13 2023-04-04 Brunswick Corporation Lanyard system and method for a marine vessel
US10793245B1 (en) * 2019-06-13 2020-10-06 Daniel Scott Trotter Boat safety system

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Publication number Priority date Publication date Assignee Title
US20160259037A1 (en) * 2015-03-03 2016-09-08 Nvidia Corporation Radar based user interface
US20190228634A1 (en) * 2018-01-22 2019-07-25 Robert Bosch Llc Surface Water Sport Monitoring System for Improving Driver Awareness
WO2021216926A1 (fr) * 2020-04-22 2021-10-28 Kai Concepts, LLC Batterie destinée à être utilisée dans une embarcation
US20210347442A1 (en) * 2020-04-22 2021-11-11 Kai Concepts, LLC Watercraft device with hydrofoil and electric propulsion system

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