ANTI-NORMAL STATE CHECKING CIRCUIT FOR MULTI-SENSOR

摘要

The circuit quickly processes control action without time delay in a home automation system. The circuit includes a detector (10) which has multi-sensors (a1-an), a buffer circuit (20) which outputs buffering outputs by specified read/write signals (R/W), interrupt generator (30) which generates an interrupt signals by abnormal state signals, a microprocessor (40) which controls a home automation system. The interrupt generator (30) includes a latch unit (31) which latches abnormal signal by read/write signals from microprocessor (40), and a comparator (32) which compares a previous state latch signal with a current state abnormal signal.