Amotech Co., Ltd.

Semin Oh

Hyungil Baek

Kyunghyun Ryu

Hoeyoung Hwang

Jaeil Park

Yonggil Jo

A portable terminal cover fastened to a portable terminal not including a UWB module comprises: a first antenna driven by receiving wireless power through a wireless power transmission with a portable terminal; a second antenna, which is driven by the wireless power supplied from the first antenna so as to measure and receive the location and distance data for an object within a communication range; a third antenna, which is operated by the wireless power supplied from the first antenna so as to transmit the location and distance data, having been measured by the second antenna, to the portable terminal; and a control unit for controlling the first, second and third antennas.

Portable terminal cover for supporting UWB communication

A method for providing a low-power IoT communication-based geo-fence service on the basis of context awareness information of a position tracking device can comprise the steps of: allowing a context analysis engine of a position tracking device to measure context awareness information, obtained from peripheral sensors capable of receiving signals from the surroundings, such as a user's heart rate, body temperature, and movement state; determining whether a situation is emergency or ordinary on the basis of the context awareness information measured by the context analysis engine of the position tracking device; transmitting an emergency message and a measured position value to a server by using low-power IoT communication when the situation is determined to be emergency; after transmitting the emergency message, selecting a module capable of stably tracking a position from among a global positioning system (GPS), wireless fidelity (Wi-Fi) sniffing, Bluetooth low energy (BLE), and ultrawide band (UWB) modules of the position tracking device for position tracking; measuring mobile position information of a position tracking device user by using the selected position tracking module; checking whether the measured mobile position information, and the context awareness information, obtained from the peripheral sensors capable of receiving signals from the surroundings, such as the user's heart rate and body temperature can be transmitted by being converted through real-time communication; transmitting the context awareness information to the server at a frequent transmission cycle and at a data rate higher than that of ordinary times through real-time communication, if transmission through real-time communication is possible; receiving an emergency cancellation message from a server manager on the basis of the mobile position information and the context awareness information; and receiving the emergency cancellation message, and then transmitting, to the server, the context awareness information, obtained from the peripheral sensors capable of receiving signals from surroundings of the position tracking device user, such as the heart rate, body temperature and movement state, by converting the context awareness information through low-power IoT communication at a reduced transmission cycle and at a data rate lower than that of an emergency.

Method for providing low-power IoT communication-based geo-fence service on basis of context awareness information of position tracking device

A method capable of providing a low power geofence service according to the present invention comprises the steps of: detecting a reference Vrect value for estimating an indoor/outdoor position from a solar charger of a position tracker; determining whether the solar charging module (solar charger) of the position tracker is in a charging or non-charging situation, on the basis of the detected Vrect value; if it is determined that the solar charging module of the position tracker is in the charging situation, determining that the position of the position tracker is outdoors and acquiring position tracking data by using a global positioning system (GPS) module; if it is determined that the solar charger of the position tracker is in the non-charging situation, determining that the position of the position tracker is indoors or in a shaded area, and acquiring position tracking data by using one among Bluetooth low energy (BLEs), wireless fidelity (Wi-Fi), and ultra-wide band (UWB) modules other than the GPS module; and transmitting the acquired position tracking data to a server by using a low power communication scheme.

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Incheon, South Korea

Semin Oh