Alexander Bahr_管道和链条传感器的光学数据中继.pdf

1、0Optical data relays for sensors along pipelines and chainsAlexander BahrOceanology International 20241 1Hydromeas Mission:we Automate Remote Inspectionsof Submerged Assets at ScaleTechnologies:LUMAPatent-pending high-speed wireless optical data link a mission critical enabler of autonomous future u

2、nderwater*DISKDRIVEPatented ultra-thin hub less thrusters for high current environments and extra maneuverabilityEXRAYWorlds first truly wireless underwater vehicle streaming HD video in real time2 2Acoustic vs.Optical communicationAcoustic Long range(kilometers)Not affected by turbidity Limited in

3、bandwidth(bits-kbits)Slow speed(high latency)Noise signature Interference issues in constrained spaces Does not scale(1:1 or 1:few)Max transmission range interference range Established commercial marketOptical Limited range(100+meters)Turbidity-dependent High bandwidth(Mbits-Gbits)Extremely fast(low

4、 latency)Low power consumption(1000 x less over acoustic per bit)Benefits from reflections Scales to hundreds of nodes Max transmission range interference range Emerging commercial offering3LUMA Product LineLUMA 100LUMA 250LPLUMA XLUMA 500ER*can vary depending on water conditionsLUMA X-UVNo ROV ligh

5、ts interference4 4Disrupting Wireless Underwater CommunicationsAshteads AMS gyro box with LUMA 250LPmoving template during constructionUnderwater“Wi-Fi”bubblesLive sensor status check at 4300m 5 5Hydromea LeadsOptical Comms Industry Standard Developmenthttps:/ 6Sensing nodeSensing node measures and

6、logs:temperaturecorrosioncathodic protection battery-powered7 7Sensing node+optical communication moduleSensing node measures and logs:temperaturecorrosioncathodic protection battery-poweredOptical communication module based on LUMA 500 tech focused beam8 8Sen