Nowadays, I believe we are all familiar with the Global Positioning Satellite (GPS) device. Elderly people only need to carry a device with this function, such as a smart phone or a smart watch, so that the caregiver can use the smart phone's application to remotely detect the location of the elderly person. The caregiver can also set a safety zone, for example, by sending an alert message to the caregiver whenever the caregiver leaves the home within 500 meters. In this way, even if the caregiver is not with the elder, he or she can still keep track of the elder's whereabouts, so that assistance can be provided as soon as possible and the elder can be recovered in case of loss.
