Changes between Version 1 and Version 2 of ControlLogicFeatures

Timestamp:

Dec 17, 2007 3:19:44 PM (17 years ago)

Author:

anonymous

Comment:

--

ControlLogicFeatures

@@ -4 +4 @@
 Control Logic Operation and Features of ianBMS
 ===============================================
+
+Occupancy monitoring
+--------------------
+
+Occupancy is monitored in every supervised space (every room) using motion sensors. The control logic 
+supports up to four motion sensors per room. The outputs of the sensors are ORed together to create 
+the occupied / unoccupied signal for the room. In order to minimize false-negatives, the raw "occupied"
+signal (coming from the sensors) is prolonged to create three logical occupancy signals per room (short, 
+medium, and long). The "occupied short" signal, once activated, remains so for at least 10 seconds. 
+The "occupied medium" signal, once activated, remains so for at least 15 minutes, and the "occupied long" 
+signal remains activated for at least half an hour. Logic blocks can use the short / medium / long 
+signals as required. The occupancy signals of several rooms are ORed together to create five aggregate 
+occupancy indications: "Front" (for rooms at the front side of the building), "side", "back", "util" (for u
+tility rooms: kitchen, hallways, restrooms, etc), plus a global "building occupied" signal.
 
 Lighting control