A system and a method of detecting and notifying of an occurrence of an overboard passenger on a vessel are used to automatically and immediately track and locate the overboard passenger as soon as the passenger has fallen overboard. In order to accomplish this, the method uses at least one tracking beacon and at least one central computing device. The central computing device is mounted onto a water-faring vessel to passively track the status and location of the tracking beacon so that the central computing device can automatically locate the tracking beacon once an overboard occurrence is detected. The tracking beacon utilizes spatial-positioning and orientation data and water submersion data to transmit an emergency alert when the passenger wearing the tracking beacon falls overboard from the water-faring vessel. Once the emergency alert is received, the central computing device executes a rescue response to expedite the rescue of the overboard passenger.

A wearable emergency notification device configured for wearing around a human wrist is described. The device comprises an accelerometer for fall detection, a heart rate sensor for anomaly detection, an activation button for activation detection, a positioning system for determining position data, and a communication system for data communication. Upon detection of a fall and/or anomaly and/or activation, position data is determined, and an emergency signal comprising the position data is transmitted.

The present invention relates to systems and methods for measuring signal strength emitted by a wireless portable device to determine the location of the wireless portable device. The wireless portable device may be located within a designated geographical location, premise or facility. The measurement involves two levels of transmissions. A first level involves a user's wireless portable device receiving signals from a plurality of beacons in the vicinity. The second level involves transmission of repeater signals from a mesh network. The payload of these signals, which may include a duress signal, includes the strength of the received beacon signals, so that when the duress signal is received by a controller, the signal strengths of both levels/types of transmissions can be determined. This two-level collection of signals is then processed by a neural network which have been previously trained to classify the signal collections into precise locations.

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.

A sympathetic emergency beacon system including a receiver for emergency beacon transmissions and a transmitter to relay transmissions. Personal Locator Beacons (PLBs), Emergency Position Indicating Radio Beacons (EPIRBs), and Emergency Locator Transmitters (ELTs) are used in emergency scenarios to provide location information regarding downed personnel, vessels, or aircraft. These signals notify search and rescue operations of the location of the distress signal. The sympathetic beacon system computes precise position information regarding the received signal and transmits this computed position information to search and rescue operators for more quickly locating the emergency situation. By automatically relaying the distress signal through a plurality of passive receivers, the present invention strengthens the reliability of emergency locating systems.

The present disclosure generally pertains to systems and methods for autonomously detecting and correcting anomalies in position information provided to aircraft using radio-frequency signals. By enabling autonomously detecting and correcting for anomalies in the operation of a ground-based solution entirely independent of GPS, systems of the present disclosure can make the provided position information more accurate and robust, thereby enhancing the effectiveness and safety of navigation systems using the provided position information. More precisely, systems of the present disclosure may employ a series of ground-based beacon transmitters to provide radio-frequency (RF) signal pulse with a highly regular frequency. A locating receiver can detect the arrival times of these pulses and use this information to detect and report certain anomalies. These reports may then be used to autonomously correct the detected anomalies.

A positioning apparatus comprises an acquiring section which acquires an azimuth angle and an angular velocity of a moving object from values measured by sensors of the moving object moving in a positioning area; a storage section which stores a coefficient of a relational expression established between a moving speed and a standard deviation of the angular velocity of the moving object in association with each of a plurality of division areas for dividing the positioning area; and a positioning section which specifies a division area where the moving object is positioned per unit time to acquire the stored coefficient in association with the division area, and calculates the moving speed in the division area from the coefficient and the standard deviation of the acquired angular velocity to measure a position of the moving object in the positioning area from the moving speed and the acquired azimuth angle.

A locator system and method of use is disclosed. The locator system may be used to receive radiolocation signals, calculate location data based on the radiolocation signals, and send the current location data over a telecommunication network to a server computer. A client may request the location data from the server computer and the server may send the location data to the client.

Disclosed are methods, systems, and non-transitory computer-readable medium for vehicle navigation processing. For instance, the method may include scanning for one or more terminals within a predetermined vicinity of the vehicle via a low latency communication network and receiving positional data of the one or more terminals via the low latency communication network. The method may further include receiving directional data of the one or more terminals relative to the vehicle, determining a first location of the vehicle relative to the one or more terminals based on the directional data, and determining a second location of the vehicle relative to the environment based on the positional data and the first location.

An improved monitoring system is a multifunctional monitoring system for children, women, disabled adults, medical, and military personnel, that combines a tracking device discretely embedded in the footwear of the user that is companioned with a smart phone application which will keep track of the wearer and upon command relay this information to police. The design intent is to quickly and efficiently track the location of a lost or abducted person and alert authorities of their location.