MOBILE WEARABLE GEOLOCATION DEVICE Russian patent published in 2021 - IPC G08B25/00 

FIELD: geolocation.

SUBSTANCE: invention relates to mobile wearable geolocation devices using LoRaWAN technology to calculate coordinates and transmit data. A hardware part of the device includes a case, a board with a LoRaWAN module, a communication module with satellite navigation systems and a control microprocessor, a removal sensor and a heart rate monitor connected to the microprocessor, a power supply element, at least two LEDs and a button, and according to the invention, it is characterized by using coordinate determination technology based on a time difference of arrival (TDOA) of a signal to a base station and a received signal strength indicator (RSSI) of LoRaWAN, and in the absence of three or more base stations within the radius of operation, LoRaWAN uses a technology of satellite data transmission, while the device transmits location data to the base station via a LoRaWAN protocol, and it, in turn, sends data via a TCP/IP protocol to a server, where it is displayed on a map in the user’s application, and the transmitted packet also includes pulse data.

EFFECT: ensuring the determination of coordinates of the user’s location in conditions of dense urban development and in buildings.

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