Functions for FTXR Series
SiUS092230EA
48
Part 4 Functions and Control
2.8 2-Area INTELLIGENT EYE Operation
Outline
The following functions can be performed by the microcomputer and a motion sensor.
1. Reduction of the capacity when there is nobody in the room in order to save electricity (energy
saving operation)
2. Dividing the room into plural areas and detecting presence in each area. Moving the airflow
direction to the area with no presence automatically to avoid direct airflow on humans.
Details
1. INTELLIGENT EYE detection method
R4003448
The motion sensor detects human motion by receiving infrared rays and sends the pulse wave
output.
The microcomputer in the indoor unit carries out a sampling every 20 msec. If the motion sensor
detects 10 times or more of the wave output in one second in total, and the High signal
continues for 3 sec., the microcomputer judges someone is in the room as the detection signal
is ON.
2-area INTELLIGENT EYE motion sensor divides the area into 2 and detects presence in each
area.
Image of 2-area INTELLIGENT EYE
R4003428
1 sec.
Sampling (20 msec.)
High
Low
ON
OFF
High
Low
(Condition of 10 times or more output)
Human motion
3 sec.
If the detection signal (High) continues for 3 sec. or more,
the microcomputer judges someone is in the room.
Detection signal
from the motion
sensor
Detection signal
Motion sensor
output
If the motion sensor detects the outputs
10 times/sec. or more, the microcomputer
judges the detection signal from the
motion sensor is High.
Top view
Indoor unit
Wall
Area A
Area B
A microcomputer judges someone by
the detection signal from each area A and B.
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