In one example embodiment, a certified location service enables a mobile device to access a location-based service when a determined location meets a location requirement and an overall confidence score for the determined location exceeds a confidence threshold. A data package is received including identifiers of beacons observed by the mobile device, and a location of the mobile device is determined based on a calculated location of one or more of the beacons. An overall confidence score for the determined location is calculated based on one or more individual confidence scores for the one or more beacons used in determining the location or composite confidence scores for types of the one or more beacons. The determined location and the overall confidence score are provided to one or more provider servers that allow the mobile device to access a location-based service based thereon.

A system for detecting angle-of-arrival (AoA) includes a first device and at least one second device. The first device transmits a Bluetooth (BT) packet, and the second device receives the BT packet and determines an AoA of the BT packet. The second device includes a first radio-frequency (RF) antenna to receive a first RF signal and a second RF antenna to receive a second RF signal. The second device also includes a first BT core and a second BT-core and a processing circuit. The first BT core is coupled to the first RF antenna and is used to generate a first signal based on the first RF signal. The second BT core is coupled to the second RF antenna and generates a second signal based on the second RF signal. The processing circuit measures a phase difference between the first signal and the second signal and determines the AoA based on the phase difference.

A wirelessly locatable tag may be configured to transmit a wireless signal to an electronic device to facilitate localization of the wirelessly locatable tag by the electronic device. The wirelessly locatable tag may include an antenna assembly comprising an antenna frame defining a top surface and a peripheral side surface and an antenna positioned along the peripheral side surface and configured to transmit the wireless signal. The wirelessly locatable tag may further include a frame member coupled to the antenna assembly and defining a battery cavity configured to receive a button cell battery and an enclosure enclosing the antenna assembly and the frame member. The enclosure may include a first housing member formed from a unitary polymer structure and defining a top wall defining an entirety of a top exterior surface of the wirelessly locatable tag.

A system and a method for tracking mobile assets, in which a tracking device is coupled to the mobile asset, the location thereof being determined by a mobile device entering the operating radius of a wave emitted by the tracking device (and/or vice versa), the mobile device having and running at least one computer program for this purpose. The position of the tracking device is refined by detecting a data packet emitted by more than one mobile device within the operating radius of the tracking device, in which communication is established between the tracking device and a server of the system over a network including all of the mobile devices having the computer program for this purpose. A set of first notices of loss that characterize the action situations of the method according to the invention, and finally a corresponding tracking device.

A beacon transmitter including a wireless transceiver and an electronic controller coupled to the wireless transceiver. The electronic controller is configured to repeatedly transmit, via the wireless transceiver, a first beacon signal through a first number of transmission repetitions spaced at a first repeat interval, and receive an acknowledgement signal via the wireless transceiver. The electronic controller is also configured to stop transmission of the first beacon signal for a first predetermined amount of time based on receipt of the acknowledgement signal, determine that the first predetermined amount of time has expired, and resume repeatedly transmitting, via the wireless transceiver, the first beacon signal in response to determining that the predetermined amount of time has expired.

A method is provided for transmitting data in a system for determining a location of at least one industrial truck comprising a mobile radio station and positioned in an area having a plurality of stationary radio stations. The method comprises transmitting a position-determining signal from the mobile radio station to the plurality of stationary radio stations. The position-determining signal is received and a position signal is transmitted from the plurality of stationary radio stations to the mobile radio station. Additional data is appended to at least one of the position-determining signal and the position signal and is evaluated. A current vehicle position is then determined from at least three received position signals.

An autonomous locator beacon including a protective casing having a power supply and a generator of radio signals connected to a transmit antenna for transmitting the generated signals. The transmit antenna is capable of taking a deployed position and a folded position. In the folded position, the transmit antenna is wound about the protective casing.

The present invention relates to a method and system for an emergency rescue request and loss prevention. The method includes checking an operation mode activation signal by the electronic device connected to a portable device through Bluetooth low energy (BLE) communication, activating a loss prevention mode and outputting an alarm when the operation mode activation signal that a strength of a BLE signal transmitted from the portable device is a threshold value or less and transmitting to a pre-stored contact number a message which is generated on the basis of surroundings data acquired from at least one of a camera and a microphone provided in the electronic device, activating an emergency rescue request mode when the operation mode activation signal is generated from an outside of the portable device. The method and system can also be applied to other embodiments.

Apparatuses and methods are disclosed that allow for the detection, identification and direction finding of search and rescue beacons in a variety of environments. The techniques may be used to identify a line of bearing (LOB) to 121.5 MHz rescue beacons found in aircraft (ELTs), marine beacons (EPIRBs), and personal locator beacons (PLBs). Multiple lines of bearing may be used to geo-locate a target emitter if so desired. The methods may utilize, for example, a handheld device that is designed for search and rescue activity. Additionally, this device may be able to decode a 406 MHz frequency beacon that communicates with the satellite system that is controlled by COSPAS SARSAT. This constellation of rescue satellites coordinates the location of 406 MHz rescue beacons.

Systems and methods for autonomous location of “Emergency Personal Locator Beacons” and other emergency Radio Frequency communication devices; providing navigation between Robotic systems such as a UAS, and the asset which is carrying a Personal Locator Beacon, EPIRB or signaling device which transmits a digital, ASCII or similar embedded data stream, intended for tracking and emergency location, within its RF broadcast. This method for navigating a robotic system or UAS relative to a defined target comprises detecting, on an Emergency Radio Frequency (RF) receiver an Emergency Radio Frequency signal generated by a Transmitter carried on the target, such as an Automatic Identification System Transmitter, As such there may be GPS enabled embedded data messages in these VHF radio transmissions, which is the focus of this invention. The invention decodes and parses the data contained in these messages, using proprietary software, converting them into motion commands for an autonomous robotic system.