I was looking at some old data in logs, and found something interesting. Below are excerpts of two logs uploaded from iOS. The first one was uploaded on January 31 and the second one August 1.
There are clearly duplicate pairs, 5 minutes apart, and within the pairs the values are one second apart. I guess the pairs were caused by some duplicate sync.
In the old upload the pairs have identical values for temperature, air pressure, and humidity. In the recent upload the first humidity value does not have the decimal point, leading to 100x values, i.e., 9202 instead of 92.02.
I am puzzled at how the old data, ok during an upload in January, has been corrupted in an upload a few days ago
Jan 31
18.12.2020 18:41:54 | 2.19 | 92.02 | 1010.76 |
---|---|---|---|
18.12.2020 18:41:55 | 2.19 | 92.02 | 1010.76 |
18.12.2020 18:46:55 | 2.2 | 92.03 | 1010.76 |
18.12.2020 18:46:56 | 2.2 | 92.03 | 1010.76 |
18.12.2020 18:51:56 | 2.21 | 92.02 | 1010.81 |
18.12.2020 18:51:57 | 2.21 | 92.02 | 1010.81 |
18.12.2020 18:56:57 | 2.23 | 92.03 | 1010.81 |
18.12.2020 18:56:58 | 2.23 | 92.03 | 1010.81 |
Aug 1
18.12.2020 18:41:54 | 2.19 | 1010.76 | 9202 |
---|---|---|---|
18.12.2020 18:41:55 | 2.19 | 1010.76 | 92.02 |
18.12.2020 18:46:55 | 2.2 | 1010.76 | 9203 |
18.12.2020 18:46:56 | 2.2 | 1010.76 | 92.03 |
18.12.2020 18:51:56 | 2.21 | 1010.81 | 9202 |
18.12.2020 18:51:57 | 2.21 | 1010.81 | 92.02 |
18.12.2020 18:56:57 | 2.23 | 1010.81 | 9203 |
18.12.2020 18:56:58 | 2.23 | 1010.81 | 92.03 |
There are also other oddities in the log uploaded recently
- There are long streaks of 100x humidity values, without a single normal value. Temp and air pressure are ok. To me these values are received measurement values, not synced values
- There are many recent duplicate pairs where both humidity values are ok, as below
1.8.2021 20:00:40 | 18.78 | 998.47 | 73.86 |
---|---|---|---|
1.8.2021 20:00:40 | 18.78 | 998.47 | 73.86 |
1.8.2021 20:00:41 | 18.78 | 998.47 | 73.88 |
1.8.2021 20:00:41 | 18.78 | 998.47 | 73.88 |
1.8.2021 20:00:43 | 18.78 | 998.47 | 73.88 |
1.8.2021 20:00:43 | 18.78 | 998.47 | 73.88 |
1.8.2021 20:00:44 | 18.78 | 998.47 | 73.89 |
1.8.2021 20:00:45 | 18.78 | 998.47 | 73.89 |
1.8.2021 20:00:47 | 18.78 | 998.47 | 73.89 |
1.8.2021 20:00:47 | 18.78 | 998.47 | 73.89 |
1.8.2021 20:00:50 | 18.78 | 998.47 | 73.9 |
1.8.2021 20:00:50 | 18.78 | 998.47 | 73.9 |
I am not able to figure out why this happens. I hope you can.