US Patent 8718594 Status monitoring method and system

A method for monitoring the status of a subject, the method including storing, at a monitoring station, information relating to the status of the subject, communicating a request from a first communication means associated with the monitoring station to a second communication means associated with the subject; and either communicating a response from the second communication means to the first communication means before a predetermined period of time has elapsed, or, in the absence of a timely response, updating the stored status to an alert condition.