Surveillance Web Camera David Luis W M Keck
Surveillance Web Camera David Luis W. M. Keck Observatory Akamai Internship Program Mentor: Craig Nance, Chase Reed Home Institution: University of Hawaii at Manoa
Snow Build Up Problem u u Dome shutter accumulation – Primary mirror – Instrument damage Access road drift – Prevents access – Staff stranded on summit
Solution u Solution – Webcamera to provide quick and accurate assessment and action
Project Overview u u Select a camera system Set up infrastructure Assemble, test, and install system Test and verify camera performance
Selecting a Camera System
Operation Parameters in Enclosure u Temperature – 9 to 35 Celsius u Humidity – Based off humidity range of UKIRTs Sony Camera – 20 -80% u Light Intensity – (50 microlux – 85 klx)
Camera Research Searching the Internet u – Use two cameras u u – Color camera for day viewing Monochrome camera for low-light viewing Auto-iris needed Final Decision u – – Sony SNC-CS 3 N digital color camera for day time viewing and color information Super Circuits PC 164 C Micro Super Low-light monochrome camera for low-light viewing Moxa Vport 2110 IP converter Sola brand power supply
Camera Infrastructure
Camera Infrastructure u Conduits and flex u Distribution box u Ethernet lines u Power lines
Assemble, Test and Install System
Camera Installation – Device testing u u – – Tested each Tested all at once Device placement Hardware mounting Ethernet connectors and testing Power up!
Testing and Verification
Testing and Verification of Performance – morning sunlight mitigation u Sunlight on both cameras – – night viewing u – viewed twinkling stars what it is doing now u – spacer between cameras and move enclosure left viewing dome and small part of road future u automatic light detecting circuit with armature
Acknowledgements Craig Nance, Chase Reed, Arnold Matsuda u Sarah Anderson u Malika Moutawakkil Bell u W. M. Keck Observatory u University of Hawaii at Manoa u u Funding provided through the Center for Adaptive Optics, a National Science Foundation Science and Technology Center (STC), AST-987683
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