2-Area Intelligent Eye Operation - Daikin FTXG20LV1BW Service Manual

Main Functions

1.11 2-Area INTELLIGENT EYE Operation

Outline The following functions can be performed by a motion sensor (INTELLIGENT EYE).
1. Reduction of the capacity when there is nobody in the room in order to save electricity
2. Dividing the room into plural areas and detecting existence of humans in each area.
Detail 1. Detection method of INTELLIGENT EYE
Sensor output
Detection signal
from the sensor
Human detection
signal
25
(energy saving operation)
Moving the airflow direction to the area with no human automatically to avoid direct airflow
on humans.
sampling (20 msec.)
High
Low
(Condition of 10 times or more output)
ON
OFF
ON
OFF
The sensor detects human motion by receiving infrared rays and displays the pulse wave
output.
The microcomputer in the indoor unit carries out a sampling every 20 msec. and if it detects
10 cycles of the wave in one second in total, and when the ON signal continues 3 sec., it
judges human is in the room as the motion signal is ON.
2-area INTELLIGENT EYE sensor is divided into 2 areas and detects humans in each area.
The sensor may detect human motion with up to 20 msec. latency.
Image of 2-area INTELLIGENT EYE
1 sec.
Human motion
If the detection signal (ON) continues 3 sec. or more,
3 sec.
it judges humans exist.
Indoor unit
Area B Area A
· A microcomputer judges human existence by
the sensor signal from each area A and B.
SiBE041401E
If the sensor detects the outputs 10 times/sec.
or more, it judges humans exist.
Wall
Top view
(R12276)
Function and Control
(R19924)