Apparatus and method for detecting azimuth of heat source

• Main Author: LEE, TZONG-SHENG
• Format: Patent
• Language: Chinese; English
• Published: 01.05.2017
• Subjects: ALARM SYSTEMS; ANALOGOUS ARRANGEMENTS USING OTHER WAVES; COLORIMETRY; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; ORDER TELEGRAPHS; PHYSICS; RADIATION PYROMETRY; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TESTING

An apparatus and method for detecting azimuth of a heat source includes a preparing step and a detecting step, which is implemented when an external heat source enters into a scanning range of an infrared sensing apparatus. The preparing step includes: detecting a unit period (Tc) by rotating a positioning portion of the infrared sensing apparatus with one circle, and aligning the positioning portion with an aligning member of the infrared sensing apparatus. The detecting step includes: driving the positioning portion to rotate and implementing the following procedures to detect the position of the external heat source. The position of the aligning member defines an initial azimuthal position. When an infrared signal emitted from the external heat source transmits into a pyroelectric infrared sensor of the infrared sensing apparatus via the positioning portion, a particular time about the infrared signal transmitted into the pyroelectric infrared sensor is defines as a time point (Ts) of the external heat sou