The Global Positioning System (GPS) allows the elderly to detect their location remotely by carrying a device with this function, such as a smartphone, smartwatch, or tracker, and allowing the caregiver to use a smartphone application. Caregivers can also set a safety zone, for example, whenever an elderly person leaves the residence within a distance of 400 meters, the application will send an alert message to the caregiver, which can help provide assistance and recover the elderly person as soon as possible.
