View
28
Download
0
Category
Preview:
DESCRIPTION
Hog Island Data Preview. From the July 31, 07 redeployment. Storage Node Summary. Data from July 31 to August 13, 2007 Storage node 22 1,780,730 records, 7228 corrupt Coverage: 2 , 8 , 14, 20 Data from: 14, 20 Storage node 24 2,095,516 records, 8213 corrupt - PowerPoint PPT Presentation
Citation preview
Hog Island Data Preview
From the July 31, 07 redeployment
Storage Node Summary
• Data from July 31 to August 13, 2007• Storage node 22
– 1,780,730 records, 7228 corrupt– Coverage: 2, 8, 14, 20– Data from: 14, 20
• Storage node 24– 2,095,516 records, 8213 corrupt– Coverage: 4, 7, 10, 16, 19– Data from: 4, x, 10, 16, 19
• Storage node 25– 2,113,593 records, 8714 corrupt– Coverage: 1, 3, 5, 11, 13, 17– Data from: 1, 5, 11, 13
Nodes 2, 3, 8, 17, 23 were not responsive at deployment-time.
Sensor Locations
SN14 SN20
SN4 SN10 SN16 SN19
Battery andBias Voltage
SN5SN1 SN13SN11
Light Data
Open Questions
• Data xmitted vs. received vs. stored?
• SN14,11 sensor decay
• SN13 daytime-only
• How to calibrate with bias voltage?
• Storage nodes operate down to 2V also?
• Reason for corrupt data?
Recommended