Sensing method of fully optical fiber integral bridge security sensing system

The present invention provides a sensing method of a fully optical fiber integral bridge security sensing system having smart phone voice alarm. The fully optical fiber integral bridge security sensing system comprises stabilizers, optical fiber sensing devices and communication devices. The basic s...

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Bibliographic Details
Main Author LI, ZHENG-KUAN
Format Patent
LanguageChinese
English
Published 01.01.2014
Subjects
ALARM SYSTEMS
ASSEMBLY OF BRIDGES
CONSTRUCTION OF BRIDGES
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
FIXED CONSTRUCTIONS
OR VIADUCTS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Summary:The present invention provides a sensing method of a fully optical fiber integral bridge security sensing system having smart phone voice alarm. The fully optical fiber integral bridge security sensing system comprises stabilizers, optical fiber sensing devices and communication devices. The basic structure is to connect cables and optical fibers at two ends via sumitubes, measuring zones being located between two sumitubes, a predetermined tension being applied to the measuring zones by the stabilizers. A strain can be sensed by the optical sensing device by means of a grating of the measuring zone in the optical fiber. When the measuring zone is subjected to a strain, the measuring zone switches from a first state to a second state and generates a signal variation in a reflection signal. A signal processing device converts the signal variation of the reflection signal to a physical parameter and transmit an alarm signal to a user end via the communication devices. The alarm signal is transmitted to the mobi
Bibliography:Application Number: TW20120123147