Patent ID: 8103384

Claim:
An air conditioner, comprising: a substantially box-shaped main body having an air suction port that sucks air of a room and an air outlet port that discharges conditioned air; an infrared sensor attached to a front of the main body at a prescribed downwardly facing depression angle that detects a temperature of a temperature detection target by scanning a temperature detection target area from right to left; and a control unit that controls the air conditioner by detecting a presence of human or heat generating device with the infrared sensor; and wherein the control unit acquires a thermal image data of the room by scanning with the infrared sensor, calculates on the thermal image data a floor dimension of an air conditioning area by integrating three information indicated below, and calculates wall positions in the air conditioning area on the thermal image data; (1) a room shape having a shape limitation value and an initial setting value, which is calculated based on a capacity zone of the air conditioner and a remote controller installation position button setting; (2) a room shape calculated based on a temperature unevenness of the floor and walls occurring during an operation of the air conditioner; and (3) a room shape calculated based on a human body detection position log.