NIOSHTIC-2 Publications Search

Using LabView to decode and synchronize SMPTE time code with data acquisition.

Stone SG; McKinney WG; Goldsmith WT; Frazer DG

Proceedings of the 46th International Instrumentation Symposium, ISA Technical Paper, Bellevue, WA, April 30-May 4, 2000. Research Triangle Park, NC: The Instrumentation, Systems, and Automation Society, 2000 May; 397:207-215

20021074

In many experiments involving both data and video collection it may be desired to synchronize the collected analog/digital data with the recorded video. This paper demonstrates two LabVIEW Virtual Instruments (VI), which use a single A/D channel to collect and decode SMPTE (Society of Motion Picture Television Engineers) time codes. This paper will demonstrate the proper sample rate selection for bi-phase data collection, as well as the decoding of Binary Coded Decimal (BCD) data. The output of the VI will be frame number, hours, minutes, and seconds in ASCII format, which can be included with the collected analog data. These Virtual Instruments demonstrate a simple, efficient, cost effective method for synchronization of data and video.

Data processing; Monitors; Monitoring systems; Author Keywords: LabVIEW; SMPTE Time Code; Video Synchronization; Longitudinal Time Code

20000430

Abstract; Conference/Symposia Proceedings

2000

HELD

Proceedings of the 46th International Instrumentation Symposium

WV; WA