Snapshot device for load case of bridge
2014
The invention discloses a snapshot device for load case of a bridge. The snapshot device comprises a GPS (Global Position System), a wireless transmission terminal, an image recording system, a load parameter sensor and a data processing and controlling system, wherein the data processing and controlling system comprises a time base unit, a time source data fusion unit, a data processing unit and a trigger pulse output unit. The snapshot device is capable of collecting and analyzing signals of an outside deflection sensor, a strain sensor and a vibrating sensor, judging thresholds of the signals, determining whether the bridge dynamically deforms, outputting trigger signals according to results, driving the image recording system to work and guaranteeing reasonable monitoring of the dynamic deformation of the bridge. The snapshot device has the effects of saving data resource and reducing the wireless data transmission and the pressure of data storage and backup.
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