Patent analysis of anti-electromagnetic interference technology of fire detector

doi:10.16265/j.cnki.issn1003-3033.2022.S1.0271

Abstract

Abstract:

In order to inspire researchers to study new ideas in the field of anti-electromagnetic interference technology of fire detectors, the patents of the anti-electromagnetic interference technology were retrieved and analyzed using incoPat, and the classification and development contexts of this technology were summarized. The results show that since the issue of anti-electromagnetic interference for fire detectors was first put forward by Predpriyatie P/YA A 7449 company of the former Soviet Union in 1978, beam transmission technology was first adopted to solve this issue by Nohmi Bosai Kogyo Co. Ltd. of Japan in 1982. Later, many technologies, such as special function sensors, special function cables and shielding devices, were developed. Among the patents in this technical field, Chinese applicants are the main ones, but the operation conversion rate of these patents in our country is very low. In contrast, the operation conversion rate of foreign patents is high, although low in the numbers of their patents.

Key words: fire detector, electromagnetic interference, patent analysis, patent technology, patent operation

ZHANG Huiqing, YANG Kai, ZHU Dongxiang. Patent analysis of anti-electromagnetic interference technology of fire detector[J]. China Safety Science Journal, 2022, 32(S1): 90-95.

Figures/Tables 3

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