Systems and methods for updating software in a hazard detection system
摘要
說明書
Alarm thresholds 433 can store the alarming thresholds in a memory (e.g., Flash memory) that is accessible by sensor state machines 432. As discussed above, sensor state machines 432 can compare monitored sensor data values against alarm thresholds 433 that may be stored within safety processor 430 to determine whether a hazard event exists, and upon determining that the hazard event exists, may cause the alarm to sound. Each sensor (e.g., smoke sensor, CO sensor, and heat sensor) may have one or more alarm thresholds. When multiple alarm thresholds are available for a sensor, safety processor 430 may initially select a default alarm threshold, but responsive to an instruction received from system processor 402 (e.g., from Alarm/Pre-Alarm Threshold Setting Module 412), it can select one of the multiple alarm thresholds as the alarm threshold for that sensor. Safety processor 430 may automatically revert back to the default alarm threshold if certain conditions are not met (e.g., a predetermined period of time elapses in which an alarm setting threshold instruction is not received from system processor 402).
