A method and devices are disclosed, for localization of a radio beacon at a remote receiver in the framework of a satellite system. Such satellite system could be Cospas-Sarsat, for Search and Rescue of people, ships and aircraft in distress, and particularly its MEOSAR (Medium Earth Orbit Search and Rescue) segments: DASS/GPS, SAR/Galileo and SAR/Glonass; said beacon is typically one of a PLB (Personal Locator Beacon) or EPIRB (Emergency Position Indicating Radio Beacon) or ELT (Emergency Locator Beacon); and said remote receiver is typically a MEOLUT (Medium Earth Orbit Local User Terminal) base station. Present art MEOSAR localization is based on Time measurements and Frequency measurements on signals emitted by radio beacons, relayed by satellites and detected at a MEOLUT; however since the exact time of transmission of the beacon is unknown at the MEOLUT, Time Difference of Arrival (TDOA) equations are applied. The present invention however, discloses that by carefully configuring the time of transmission at said beacon, even without directly communicating that specific time to the MEOLUT, Time of Arrival (TOA) equations could be applied at the MEOLUT enabling enhanced localization accuracy and/or fewer satellites in view required to localize the beacon. In particular, localization is enabled even upon a single burst emitted by the beacon and relayed to the MEOLUT by a single satellite.

A travel case includes a case body defining an interior cavity in which to carry articles and an exterior shell; an inflatable floatation aid fixed to the exterior shell; an inflator in communication with the inflatable floatation aid, for inflation of the inflatable floatation aid; and a locator beacon fixed to the exterior shell, including a communications transmitter capable of signaling a remote party and a geo-locating apparatus.

This invention refers to an innovative, original and convenient Autonomous System for Rescue operations, which works on the vessel, program controlled by a software and hardware platform rescuing people overboard in an autonomous manner. The System starts operating from the moment the person falls off the deck into the water. From the moment the wrist band on the passenger makes contact with the water, it sends out a radio frequency signal with two orders: to activate an alarm and to notify a robot to start rescue operation, and it brings it to the vessel with no intervention from people, i.e., in an intelligent and autonomous manner.

A safety device and a method of assisting a user using the safety device. The safety device has a wearable component worn by a user or portable component able to be carried by the user, one or more sensors configured to measure the environment and/or biological attributes of a user, and a controller in communication with the one or more sensors. The controller is configured to issue a notification upon determining a predetermined condition from the one or more sensors. The issuance of the notification preferably calls for assistance and/or activates an assistance device to assist the user.

Methods and systems for detecting and locating a man overboard situation. In particular, the methods and systems detect a point of loss of a man overboard situation and allow for the ship to coordinate back to the point of loss.

A method and devices are disclosed, for localization of a radio beacon at a remote receiver in the framework of a satellite system. Such satellite system could be Cospas-Sarsat, for Search and Rescue of people, ships and aircraft in distress, and particularly its MEOSAR (Medium Earth Orbit Search and Rescue) segments: DASS/GPS, SAR/Galileo and SAR/Glonass; said beacon is typically one of a PLB (Personal Locator Beacon) or EPIRB (Emergency Position Indicating Radio Beacon) or ELT (Emergency Locator Beacon); and said remote receiver is typically a MEOLUT (Medium Earth Orbit Local User Terminal) base station.

Present art MEOSAR localization is based on Time measurements and Frequency measurements on signals emitted by radio beacons, relayed by satellites and detected at a MEOLUT; however since the exact time of transmission of the beacon is unknown at the MEOLUT, Time Difference of Arrival (TDOA) equations are applied. The present invention however, discloses that by carefully configuring the time of transmission at said beacon, even without directly communicating that specific time to the MEOLUT, Time of Arrival (TOA) equations could be applied at the MEOLUT enabling enhanced localization accuracy and/or fewer satellites in view required to localize the beacon. In particular, localization is enabled even upon a single burst emitted by the beacon and relayed to the MEOLUT by a single satellite.

Provided in a system and a method for guiding evacuation in a ship are: a personal distribution information obtaining unit configured to obtain, based on information from cameras provided in the ship, passenger position information in predetermined areas in the ship; an evacuation route calculating unit configured to formulate, based on the passenger position information from the personal distribution information obtaining unit and passage passability information set from event information of evacuation, evacuation routes; an evacuation information managing unit configured to share information with the personal distribution information obtaining unit and the evacuation route calculating unit, and output the evacuation routes formulated by the evacuation route calculating unit; and an evacuation guiding unit configured to modify, based on the evacuation routes output by the evacuation information managing unit, evacuation guidance display provided in passages in the ship.

A garment to repel underwater aquatic creatures. A first component for generating a control signal and a second component for receiving the control signal and transmitting an electromagnetic signal responsive thereto, an electromagnetic field created by the electromagnetic signal radiating from the second component into an aquatic area surrounding the garment. A water sensor disposed on the garment for activating the first and second components to transmit the electromagnet signal when the water sensor senses presence of water.

A geofenced autonomous aquatic drone for repelling sharks from a shoreline. The drone employs a buoyant housing resembling a portion of a predator such as an orca whale. A battery positioned within the drone is recharged through a floating inductive charging station. A transmitter unit coupled to at least one under water transducer introduces certain sounds, such as reproduction of orca whale or dolphin calling sounds. A propulsion system controlled a microprocessor receives location information via DGPS for providing a geofence around an area to be patrolled. The drone travels within the geofence area, monitored by the DGPS receiver, while said transducer produces certain sounds and or a solution of shark repellant is dispensed.

Embodiments of the present disclosure disclose a Black box with Satellite Transmitter (BSAT) for underwater vehicles. The BSAT provides a mission data backup of sunken under water vehicles and it is akin to a black box recorder of aircrafts. The BSAT comprising a sealed enclosure to receive and transmit IR and electromagnetic signals, a Global Positioning System (GPS) with an antenna to provide GPS parameters of the BSAT, a transmit antenna to transmit the GPS parameters and parameters associated with the underwater vehicle, an ejection mechanism to eject the BSAT from the underwater vehicle on detecting a pre-defined condition, by an electronic controller. The electronic controller to perform at least one of sending control signals, communicating using IR transceiver, acquire and store underwater vehicle parameters, identifying an ejection instant, acquiring and storing data GPS parameters, scheduling data transmission through a satellite after ejection of the BSAT from the underwater vehicle.