| 摘要 |
A portable personal emergency alert system is described that includes a low-energy communication protocol transmitter activatable by a user and configured to periodically transmit a data packet including a Universally Unique Identifier (UUID) for a predetermined time. A wireless transceiver is operable to receive the data packet transmission and subsequently transmit the data packet via cellular transmission. A centralized computer server in a data center is configured to receive the cellular transmission, process the data packet to determine a desired recipient, and transmit an alert to the desired recipient. |
