[Ovmsdev] chatty v2 server comms

Tue Dec 19 14:40:47 HKT 2017

At least during charging this appears to be working better, 2 messages 
per minute for the  most part. I always have a client connected as my 
python client is always connected waiting for messages.

These logs are with 63b87c3f46d5af9eaf49739aa3179c4d026aa3de + a hack to 
ignore changes in the ms_v_bat_12v_voltage metric (and also nissan leaf 
remote control changes but they don't affect the telemetry). I'm 
ignoring the 12v because it appears to have only 3 decimal significant 
figures of signal and we're monitoring changes on 3 additional 
significant figures of noise. The following are the values every minute 
while the car is charging the traction battery and the 12v system is 
powered by the on board DC-DC.

13.1374
13.1923
13.1813
13.1264
13.1209
13.1978
13.1044
13.1154
13.1538
13.2418
13.1593
13.1813
13.1484
13.1813
13.1374
13.1813
13.1813

It's probably worth storing and even transmitting 4 significant figures, 
as you can see trends in the noise much more clearly than the v2's 100mV 
steps, but we shouldn't trigger notifications on the noise. We could 
also look at averaging or taking the median to increase the signal to 
noise ratio.

The full log below shows the few minutes as I arrived home and it 
connected to the wifi (gsm is too unstable to use) and then I plugged in 
and started charging.

2017-12-19 05:09:33,21226,'#79 A got login'
2017-12-19 05:10:01,21292,'#37 C got login'
2017-12-19 05:10:01,21293,'#37 C rx msg S 
50,K,0,0,stopped,standard,42,0,0,0,0,0,13,21,0,0,0,0,63.22,0,0,0,0,-1,0,0,0,0,0,0,0,0.00,378.50,96'
2017-12-19 05:10:01,21294,'#37 C rx msg D 
128,0,5,0,0,27,0,70,0,460,21,1,1,1,12.5934,0,0,0,0,0'
2017-12-19 05:10:02,21295,'#37 C rx msg L 0,0,0,0,0,0,0,0,0,0,0'
2017-12-19 05:10:02,21296,'#37 C rx msg W 0,0,0,0,0,0,0,0,0'
2017-12-19 05:10:03,21297,'#37 C rx msg F 3.0.0/factory/main build (idf 
v2.1-20-g88ab5d4) Dec 18 2017 09:50:21,,0,1,NL,redacted'
2017-12-19 05:10:03,21298,'#37 C rx msg S 
50,K,0,0,stopped,standard,42,0,0,0,0,0,13,21,0,0,0,0,63.22,0,0,0,0,-1,0,0,0,0,0,0,0,0.00,378.50,96'
2017-12-19 05:10:03,21299,'#37 C rx msg D 
128,0,5,0,0,27,0,70,0,460,21,1,1,1,12.5934,0,0,0,0,0'
2017-12-19 05:10:04,21300,'#37 C rx msg L 0,0,0,0,0,0,0,0,0,0,0'
2017-12-19 05:10:04,21301,'#37 C rx msg W 0,0,0,0,0,0,0,0,0'
2017-12-19 05:10:05,21302,'#37 C rx msg F 3.0.0/factory/main build (idf 
v2.1-20-g88ab5d4) Dec 18 2017 09:50:21,,0,1,NL,redacted'
2017-12-19 05:10:22,21360,'#37 C rx msg S 
50,K,511,0,charging,standard,42,0,17,0,0,0,3,1,0,0,0,0,63.22,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,511.50,96'
2017-12-19 05:10:22,21361,'#37 C rx msg D 
156,0,5,0,0,27,0,70,0,477,22,1,1,1,12.6758,0,0,0,0,0'
2017-12-19 05:10:23,21362,'#37 C rx msg S 
50,K,378,0,charging,standard,42,0,10,0,0,0,3,1,0,0,0,0,63.22,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,378.50,96'
2017-12-19 05:10:23,21363,'#37 C rx msg S 
50,K,378,0,charging,standard,42,0,10,0,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,378.50,96'
2017-12-19 05:10:24,21364,'#37 C rx msg S 
50,K,378,0,charging,standard,42,0,10,0,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,378.50,96'
2017-12-19 05:10:27,21372,'#37 C rx msg S 
50,K,378,0,charging,standard,42,0,10,0,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,378.50,96'
2017-12-19 05:11:19,21481,'#37 C rx msg S 
50,K,379,5,charging,standard,42,0,10,0,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,379.50,96'
2017-12-19 05:11:19,21482,'#37 C rx msg D 
156,0,5,0,0,27,0,80,0,521,22,1,1,1,13.1044,0,0,0,0,0'
2017-12-19 05:11:39,21537,'#37 C rx msg D 
92,0,5,0,0,27,0,90,0,558,22,0,1,1,13.1374,0,0,0,0,0'
2017-12-19 05:12:03,21599,'#37 C rx msg S 
50,K,379,4,charging,standard,42,0,10,1,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,379.50,96'
2017-12-19 05:12:03,21602,'#37 C rx msg D 
92,0,5,0,0,27,0,90,0,582,22,0,1,1,13.1813,0,0,0,0,0'
2017-12-19 05:13:04,21745,'#37 C rx msg S 
50,K,380,4,charging,standard,42,0,10,2,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,380.00,96'
2017-12-19 05:13:04,21746,'#37 C rx msg D 
92,0,5,0,0,27,0,100,0,643,22,0,1,1,13.1648,0,0,0,0,0'
2017-12-19 05:14:05,21870,'#37 C rx msg S 
50,K,380,4,charging,standard,42,0,10,3,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,380.00,96'
2017-12-19 05:14:07,21879,'#37 C rx msg D 
92,0,5,0,0,27,0,110,0,704,22,0,1,1,13.1813,0,0,0,0,0'
2017-12-19 05:15:13,22039,'#37 C rx msg S 
50,K,380,3,charging,standard,42,0,10,4,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,380.50,96'
2017-12-19 05:15:13,22040,'#37 C rx msg D 
92,0,5,0,0,27,0,120,0,765,23,0,1,1,13.1593,0,0,0,0,0'
2017-12-19 05:15:51,22142,'#15 A timeout due app due to inactivity'
2017-12-19 05:15:54,22146,'#15 A got login'
2017-12-19 05:16:07,22183,'#37 C rx msg S 
51,K,380,5,charging,standard,42,0,10,5,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,380.50,96'
2017-12-19 05:16:07,22184,'#37 C rx msg D 
92,0,5,0,0,27,0,130,0,826,23,0,1,1,13.1813,0,0,0,0,0'
2017-12-19 05:17:08,22324,'#37 C rx msg S 
51,K,380,4,charging,standard,42,0,10,6,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,380.50,96'
2017-12-19 05:17:08,22325,'#37 C rx msg D 
92,0,5,0,0,27,0,140,0,887,23,0,1,1,13.1813,0,0,0,0,0'
2017-12-19 05:18:09,22450,'#37 C rx msg S 
51,K,380,4,charging,standard,43,0,10,7,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,380.50,96'
2017-12-19 05:18:12,22457,'#37 C rx msg D 
92,0,5,0,0,27,0,150,0,948,23,0,1,1,13.1923,0,0,0,0,0'
2017-12-19 05:19:10,22589,'#37 C rx msg S 
51,K,380,4,charging,standard,43,0,10,8,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,380.50,96'
2017-12-19 05:19:10,22590,'#37 C rx msg D 
92,0,5,0,0,27,0,160,0,1009,23,0,1,1,13.1593,0,0,0,0,0'
2017-12-19 05:20:11,22725,'#37 C rx msg S 
51,K,381,4,charging,standard,43,0,10,9,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,381.00,96'
2017-12-19 05:20:11,22726,'#37 C rx msg D 
92,0,5,0,0,27,0,170,0,1070,23,0,1,1,13.1703,0,0,0,0,0'
2017-12-19 05:21:12,22870,'#37 C rx msg S 
51,K,381,4,charging,standard,43,0,10,10,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,381.00,96'
2017-12-19 05:21:12,22871,'#37 C rx msg D 
92,0,5,0,0,27,0,180,0,1131,24,0,1,1,13.1813,0,0,0,0,0'
2017-12-19 05:22:13,22999,'#37 C rx msg S 
51,K,381,4,charging,standard,43,0,10,11,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,381.00,96'
2017-12-19 05:22:13,23001,'#37 C rx msg D 
92,0,5,0,0,27,0,190,0,1192,24,0,1,1,13.1319,0,0,0,0,0'
2017-12-19 05:23:14,23114,'#37 C rx msg S 
52,K,381,4,charging,standard,43,0,10,12,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,381.00,96'
2017-12-19 05:23:14,23115,'#37 C rx msg D 
92,0,5,0,0,27,0,200,0,1253,24,0,1,1,13.1813,0,0,0,0,0'
2017-12-19 05:24:15,23235,'#37 C rx msg S 
52,K,381,4,charging,standard,43,0,10,13,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,381.00,96'
2017-12-19 05:24:15,23236,'#37 C rx msg D 
92,0,5,0,0,27,0,210,0,1314,25,0,1,1,13.2033,0,0,0,0,0'
2017-12-19 05:25:16,23394,'#37 C rx msg S 
52,K,381,4,charging,standard,43,0,10,14,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,381.00,96'
2017-12-19 05:25:16,23395,'#37 C rx msg D 
92,0,5,0,0,27,0,220,0,1375,25,0,1,1,13.1978,0,0,0,0,0'
2017-12-19 05:26:17,23536,'#37 C rx msg S 
52,K,381,5,charging,standard,44,0,10,15,0,0,3,1,0,0,0,0,63.13,0,0,0,0,-1,0,0,0,0,0,0,0,-0.00,381.50,96'
2017-12-19 05:26:17,23538,'#37 C rx msg D 
92,0,5,0,0,27,0,230,0,1436,25,0,1,1,13.2143,0,0,0,0,0'