US 12,256,002 B2
Physimetric-based data security for coded distributed temperature sensing
Qiang Wang, Princeton, NJ (US); Junqiang Hu, Davis, CA (US); Jian Fang, Princeton, NJ (US); Yaowen Li, Princeton, NJ (US); and Ting Wang, West Windsor, NJ (US)
Assigned to NEC Corporation, Tokyo (JP)
Filed by NEC Laboratories America, Inc., Princeton, NJ (US)
Filed on Jan. 31, 2022, as Appl. No. 17/589,863.
Claims priority of provisional application 63/145,740, filed on Feb. 4, 2021.
Prior Publication US 2022/0247562 A1, Aug. 4, 2022
Int. Cl. H04L 9/32 (2006.01); G01K 11/32 (2021.01); H04L 9/06 (2006.01)
CPC H04L 9/32 (2013.01) [G01K 11/32 (2013.01); H04L 9/0618 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A method for securing temperature data generated by a coded-distributed temperature sensing (coded-DTS) system, the method comprising:
providing the coded-DTS system including a coded-DTS interrogator/analyzer in optical communication with an optical sensing fiber;
operating the coded-DTS system and obtaining and recording code pulse(s) used to modulate a laser included in the coded-DTS interrogator/analyzer;
operating the coded-DTS system and obtaining pulse profile(s) of modulated laser light produced by the laser;
encrypting the code pulse(s) and pulse profile(s) so obtained and make the encrypted code pulse(s) and pulse profile(s) available to an authorized user;
operating the coded-DTS system and collect real-time DTS temperature data along a length of the optical sensing fiber;
making the collected DTS temperature data available to the authorized user for reconstructing the collected DTS temperature data along the length of the optical sensing fiber using the encrypted code pulse(s) and pulse profile(s) after their decryption.