The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 03, 2025
Filed:
Dec. 29, 2024
Huazhong University of Science and Technology, Hubei, CN;
Ming Zhu, Hubei, CN;
Mengxue Lin, Hubei, CN;
Lei Chen, Hubei, CN;
Renshan Zhang, Hubei, CN;
Maosen Wang, Hubei, CN;
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, Hubei, CN;
Abstract
A fire smoke-detection method and detector based on particle shape characteristics for detecting particles in an optical dark chamber. An optical path angle between one blue light and one infrared light and a photoelectric conversion module is an acute angle, while an optical path angle between another blue light and the photoelectric conversion module is an obtuse angle. The detection method includes: starting a light source combination, calculating a change value between a current scattered light optical power and a background value of each light source, when the change value exceeds a set threshold, continuously starting the light source combination and constructing a space vector from the recorded change values, and using a classifier to classify a plurality of space vectors to obtain a plurality of classification results with categories including fire smoke and interfering aerosols; and counting the classification results to obtain the correct classification result.