Disclosed are techniques for calculating a predicted location of a location tracking device. In an aspect, a wireless communications device detects a breach of a geofence made by the location tracking device, receives data representing a state of the location tracking device, the state of the location tracking device comprising at least a current location of the location tracking device and a velocity of the location tracking device, and determines, based on the data representing the state of the location tracking device, the predicted location of the location tracking device.

The invention is related to a wheelchair safety melody apparatus, which comprising: a wheelchair, including a seat pad; at least one handrail, fixed to the wheelchair; a pressure-sensitive seat pad, placed above the seat pad; and a safety melody generator, electrically connected with the pressure-sensitive seat pad, and being removably fixed at one side of the at least one handrail via a fastening element, wherein as a user leaves the seat of the wheelchair, the pressure-sensitive seat pad generates an initiating signal due to release of the pressure of the pressure-sensitive seat pad, thereby to allow the safety melody generator to generate an alarm signal for notifying a medical care person for assistance.

An information handling system includes a host device and multiple monitor devices. One of the monitor devices is configured as a parent monitor device, and the remaining monitor devices are configured as child monitor devices. The parent monitor device receives a user presence detect (UPD) status signal, and queries all of the child monitor devices for a current UPD status. In response to the queries, the parent monitor consolidates the current UPD status from each of the child monitor devices and the current UPD status of the parent monitor device. Based on the consolidated current UPD status and based on a UPD policy, the parent monitor device sets a current user status as a user absence or presence. In response to the processor being in a low power state and the current user status being the user presence, the patent monitor device provides a wake notification to the host device.

A novel tracking system is disclosed. In one embodiment, a long-range tracking device is incorporated into a removable footwear insole and a short-range tracking device is incorporated into another removable footwear insole. The long-range tracking device includes a location determining device, a wireless communication device, and a power source. In a more particular embodiment, the location determining device is a GPS receiver, and the communication device is a cellular modem.

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.

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.

The present invention provides an improved electronic fall monitoring system comprising a device having multiple sensor ports for flexibly monitoring various sensors associated with a single patient without requiring repeated connections and disconnections of sensors. With several sensors simultaneously connected at different locations, a processor can execute to ensure that only one sensor, corresponding to one patient, is monitored at any given time, including by triggering an alarm when a second sensor is triggered while a first sensor is in use. Accordingly, the system can provide a “one step transfer” in which a caregiver may simply press hold once to transfer a patient from one sensed area to another. In addition, the caregiver can simply actuate a single input with only a momentary press to allow suspension of monitoring for a shorter duration (hold) or a longer press to allow suspension of monitoring for a longer duration (extended hold).

Disclosed herein are systems and methods related to a wireless tracking system: The wireless tracking system having a plurality of beacons, each of the plurality of beacons having at least one antenna and at least one power source. When the at least one antenna is supplied with power via the power source, a local ping is transmitted from the beacon. A wireless tracking device then receives the ping via its own antenna. Once the wireless tracking device has received a locational ping from at least two of the plurality of beacons, it can then calculate a direct connection path between the at least to beacons. Based on this known path, the wireless tracking device can then determine a distance between the wireless tracking device and connection path. Based on the determined distance, the wireless tracking device may then issue a corrective measure.

Techniques and examples pertaining to a tracking method using a two-component tracking device are described. The tracking device includes two components paired with one another: a first component that is specific to a subject the tracking device is intended to track, and a second component that is generic. The second component is capable of establishing a wireless connection with a cellular network, as well as collecting location information of the second component itself. The tracking method involves receiving from the cellular network a set of requirements associated with the subject, and triggering an action based on the set of requirements and the location information collected. The tracking method enables tracking of multiple subjects without a pairing mistake. Namely, a mismatch between multiple subjects to be tracked and multiple tracking devices intended to track the subjects can be avoided.

Systems, methods, and devices for locating items, people, and/or animals are provided. In accordance with some embodiments, locator devices for locating a target device are provided, the locator devices comprising: a first transceiver configured to communicate with a second transceiver in the target device; a Global Navigation Satellite System (GNSS) receiver configured to receive data from a plurality of satellites for calculating a location; a visual indicator; and a hardware processor that: receives signals from the first transceiver; calculates an estimated distance between the locator device and a target device based on the signals; controls whether the GNSS receiver is powered on or off based on the estimated distance; and causes the visual indicator indicate an estimated direction to the target device from the locator device.