Abstract: The present invention relates generally to fire detection and alarm technology, and more particularly, to a detection component, a detection system and a fire alarm applicable for the Photoelectric Smoke Detection Fire Alarm. The scattering mechanism ensures scattering fitting with the receiving tube to make the size and detection accuracy of the fire alarm fulfill requirements, and the circuit detection system and maze structure improve detection accuracy and reduce the interference of external light.

Abstract: The present invention relates to a new photoelectric smoke fire detection and alarming method, comprising: acquiring scattered light intensity data of at least two scattering angles of fire samples and interference source samples, and calculating sample parameters thereof to form a sample category table; and calculating sample parameters of detection data for comparison, and outputting a fire alarming signal when the comparison result is that the sample parameters are in line with the sample category table. According to the fire alarming method in the present invention, data collection, calculation and judgment are performed based on at least two modulated optical signals, so that the early-warning precision is improved.

Abstract: The present invention relates generally to fire detection and alarm technology, and more particularly, to a detection component, a detection system and a fire alarm applicable for the Photoelectric Smoke Detection Fire Alarm. The scattering mechanism ensures scattering fitting with the receiving tube to make the size and detection accuracy of the fire alarm fulfill requirements, and the circuit detection system and maze structure improve detection accuracy and reduce the interference of external light.

Abstract: The present invention relates to a new photoelectric smoke fire detection and alarming method, comprising: acquiring scattered light intensity data of at least two scattering angles of fire samples and interference source samples, and calculating sample parameters thereof to form a sample category table; and calculating sample parameters of detection data for comparison, and outputting a fire alarming signal when the comparison result is that the sample parameters are in line with the sample category table. According to the fire alarming method in the present invention, data collection, calculation and judgment are performed based on at least two modulated optical signals, so that the early-warning precision is improved.