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googleinterns / power-data-graphing-intern-2020

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Support 2 types of DMM data #7

Closed yaomeng-google closed 4 years ago

yaomeng-google commented 4 years ago

After discussion with Power team, they confirmed they'll use DMM mainly in 2 frequencies:

  1. For 1MHz, it's limited to 1 channel.
  2. 10 channels is limited to ~90Hz total because the switch can't toggle fast enough. So this project should support both of the above cases.

The length of powers tests is 5 to 75 minutes. So in case 1, the total data points will be 75 60 1,000,000 in max. In case 2, the total data points will be 75 60 90 = 405,000 in max.

Also, given the fact that the frequency will be the same per test, it makes sense to downsample the data to 10 per second when displaying the overall graph.

Sample data in case 1:
https://drive.google.com/file/d/1fV_Gzt-Ymz_y0-B89E71ivaCpYUHEF2Z/view?usp=sharing Sample data in case 2: https://docs.google.com/spreadsheets/d/1e_b5k1lfQTUDFeRbVqga1f3st0HdMwjeR0nxXkHgQew/edit?usp=sharing

yftzz commented 4 years ago

Officially supported in latest PR.