Patent ID: 11288950

Abstract:
A system (302) includes a battery powered wireless alert device (3041, . . . , 3041, . . . , 304N) and a battery powered wireless alert device monitor (3061, . . . , 3061, . . . , 306N). The battery powered wireless alert device includes electronic circuitry (2021), a transmitter (2041) configured to transmit a signal at a predetermined first rate to an alarm device (110), a logic circuit (4021) configured to generate an output signal at a predetermined second rate, wherein the first rate is lower than the second rate, and a power source (2061) configured to supply power to at least the electronic circuitry and the logic circuit. The battery powered wireless alert device monitor includes monitoring circuitry (4041) configured to monitor a health state of the battery powered wireless alert device based on the logic level, a transmitter (2041) configured to transmit a battery powered wireless alert device failure signal, on-demand, to the alarm device in response to the monitoring circuitry determining the logic level fails to satisfy predetermined criteria.