I’m wondering what the theoretical maximum pulse rate of a domestic meter in the UK on a standard UK single phase supply @ 1000 pulses per kWh is. I’m sure it should be simple to calculate but my head is hurting…
I’m wondering if the 0.2 sec sleep in emonhub could cause pulses to be missed by the pulse interfacer I’m using.
24 kW draw = 24 kWh in an hour = 24,000 pulses = 6.67 pulses per second = a pulse every 0.15s?
I thought so. So there is a possibility the delay would then miss a pulse I think - or am I misunderstanding the way the callbacks work - will they get called in the delay period and increment the counter anyway?
Ok so, yes it is possible!
It seems we have had just about everything in the house on at once (11.4kW) - shame I am not on Agile yet!
2x RPis, one direct serial to an emonTX CM firmware and one using the pulse interfacer with the pulse sensor wired direct to the Pi GPIO pins. I noticed it because of this - a sudden divergence between the TX and the pulse (I was comparing accuracy) cumulative readings.
I noticed it quick enough to grab the emonhub logs of both.
Note
Does the emonTX accumulate the interrupts and report every 10s?
Serial emonTX
2020-06-29 14:29:02,796 DEBUG SerialTx 23136 NEW FRAME : MSG:23199,Vrms:243.34,P1:3550,E1:51090,pulse:1
2020-06-29 14:29:02,798 DEBUG SerialTx 23136 Timestamp : 1593437342.7953339
2020-06-29 14:29:02,800 DEBUG SerialTx 23136 From Node : Serial_PiZ
2020-06-29 14:29:02,802 DEBUG SerialTx 23136 Values : [23199, 243.34, 3550, 51090, 1]
2020-06-29 14:29:02,818 DEBUG SerialTx 23136 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:02,819 DEBUG SerialTx 23136 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:02,941 DEBUG MQTT2 Publishing: emon/Serial_PiZ {"MSG": 23199, "Vrms": 243.34, "P1": 3550, "E1": 51090, "pulse": 1, "time": 1593437342.7953339}
2020-06-29 14:29:02,945 DEBUG MQTT Publishing: emon/Serial_PiZ {"MSG": 23199, "Vrms": 243.34, "P1": 3550, "E1": 51090, "pulse": 1, "time": 1593437342.7953339}
2020-06-29 14:29:12,791 DEBUG SerialTx 23137 NEW FRAME : MSG:23200,Vrms:242.94,P1:4888,E1:51104,pulse:1
2020-06-29 14:29:12,793 DEBUG SerialTx 23137 Timestamp : 1593437352.7901702
2020-06-29 14:29:12,795 DEBUG SerialTx 23137 From Node : Serial_PiZ
2020-06-29 14:29:12,799 DEBUG SerialTx 23137 Values : [23200, 242.94, 4888, 51104, 1]
2020-06-29 14:29:12,801 DEBUG SerialTx 23137 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:12,803 DEBUG SerialTx 23137 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:12,936 DEBUG MQTT Publishing: emon/Serial_PiZ {"MSG": 23200, "Vrms": 242.94, "P1": 4888, "E1": 51104, "pulse": 1, "time": 1593437352.7901702}
2020-06-29 14:29:13,008 DEBUG MQTT2 Publishing: emon/Serial_PiZ {"MSG": 23200, "Vrms": 242.94, "P1": 4888, "E1": 51104, "pulse": 1, "time": 1593437352.7901702}
2020-06-29 14:29:22,814 DEBUG SerialTx 23138 NEW FRAME : MSG:23201,Vrms:240.18,P1:11442,E1:51135,pulse:1
2020-06-29 14:29:22,816 DEBUG SerialTx 23138 Timestamp : 1593437362.8134532
2020-06-29 14:29:22,818 DEBUG SerialTx 23138 From Node : Serial_PiZ
2020-06-29 14:29:22,820 DEBUG SerialTx 23138 Values : [23201, 240.18, 11442, 51135, 1]
2020-06-29 14:29:22,821 DEBUG SerialTx 23138 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:22,830 DEBUG SerialTx 23138 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:23,088 DEBUG MQTT2 Publishing: emon/Serial_PiZ {"MSG": 23201, "Vrms": 240.18, "P1": 11442, "E1": 51135, "pulse": 1, "time": 1593437362.8134532}
2020-06-29 14:29:23,121 DEBUG MQTT Publishing: emon/Serial_PiZ {"MSG": 23201, "Vrms": 240.18, "P1": 11442, "E1": 51135, "pulse": 1, "time": 1593437362.8134532}
2020-06-29 14:29:32,848 DEBUG SerialTx 23139 NEW FRAME : MSG:23202,Vrms:240.04,P1:11259,E1:51167,pulse:1
2020-06-29 14:29:32,851 DEBUG SerialTx 23139 Timestamp : 1593437372.8467956
2020-06-29 14:29:32,885 DEBUG SerialTx 23139 From Node : Serial_PiZ
2020-06-29 14:29:32,888 DEBUG SerialTx 23139 Values : [23202, 240.04, 11259, 51167, 1]
2020-06-29 14:29:32,890 DEBUG SerialTx 23139 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:32,900 DEBUG SerialTx 23139 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:33,179 DEBUG MQTT2 Publishing: emon/Serial_PiZ {"MSG": 23202, "Vrms": 240.04, "P1": 11259, "E1": 51167, "pulse": 1, "time": 1593437372.8467956}
2020-06-29 14:29:33,211 DEBUG MQTT Publishing: emon/Serial_PiZ {"MSG": 23202, "Vrms": 240.04, "P1": 11259, "E1": 51167, "pulse": 1, "time": 1593437372.8467956}
2020-06-29 14:29:42,792 DEBUG SerialTx 23140 NEW FRAME : MSG:23203,Vrms:240.01,P1:11406,E1:51198,pulse:1
2020-06-29 14:29:42,794 DEBUG SerialTx 23140 Timestamp : 1593437382.791037
2020-06-29 14:29:42,796 DEBUG SerialTx 23140 From Node : Serial_PiZ
2020-06-29 14:29:42,798 DEBUG SerialTx 23140 Values : [23203, 240.01, 11406, 51198, 1]
2020-06-29 14:29:42,800 DEBUG SerialTx 23140 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:42,801 DEBUG SerialTx 23140 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:42,947 DEBUG MQTT2 Publishing: emon/Serial_PiZ {"MSG": 23203, "Vrms": 240.01, "P1": 11406, "E1": 51198, "pulse": 1, "time": 1593437382.791037}
2020-06-29 14:29:42,996 DEBUG MQTT Publishing: emon/Serial_PiZ {"MSG": 23203, "Vrms": 240.01, "P1": 11406, "E1": 51198, "pulse": 1, "time": 1593437382.791037}
2020-06-29 14:29:52,776 DEBUG SerialTx 23141 NEW FRAME : MSG:23204,Vrms:240.05,P1:11230,E1:51230,pulse:1
2020-06-29 14:29:52,778 DEBUG SerialTx 23141 Timestamp : 1593437392.775109
2020-06-29 14:29:52,779 DEBUG SerialTx 23141 From Node : Serial_PiZ
2020-06-29 14:29:52,781 DEBUG SerialTx 23141 Values : [23204, 240.05, 11230, 51230, 1]
2020-06-29 14:29:52,783 DEBUG SerialTx 23141 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:52,785 DEBUG SerialTx 23141 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:52,832 DEBUG MQTT2 Publishing: emon/Serial_PiZ {"MSG": 23204, "Vrms": 240.05, "P1": 11230, "E1": 51230, "pulse": 1, "time": 1593437392.775109}
2020-06-29 14:29:52,870 DEBUG MQTT Publishing: emon/Serial_PiZ {"MSG": 23204, "Vrms": 240.05, "P1": 11230, "E1": 51230, "pulse": 1, "time": 1593437392.775109}
Pulse (but not all of the period for obvious reasons
2020-06-29 14:29:50,055 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230057
2020-06-29 14:29:50,111 DEBUG pulse2 229929 NEW FRAME :
2020-06-29 14:29:50,113 DEBUG pulse2 229929 Timestamp : 1593437390.111448
2020-06-29 14:29:50,115 DEBUG pulse2 229929 From Node : 3
2020-06-29 14:29:50,117 DEBUG pulse2 229929 Values : [230057]
2020-06-29 14:29:50,119 DEBUG pulse2 229929 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:50,126 DEBUG pulse2 229929 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:50,268 DEBUG MQTT3 Publishing: emon/3/Pulse 230057
2020-06-29 14:29:50,273 DEBUG MQTT2 Publishing: emon/3/Pulse 230057
2020-06-29 14:29:50,271 DEBUG MQTT Publishing: emon/3/Pulse 230057
2020-06-29 14:29:50,384 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230058
2020-06-29 14:29:50,435 DEBUG pulse2 229930 NEW FRAME :
2020-06-29 14:29:50,437 DEBUG pulse2 229930 Timestamp : 1593437390.4350913
2020-06-29 14:29:50,439 DEBUG pulse2 229930 From Node : 3
2020-06-29 14:29:50,441 DEBUG pulse2 229930 Values : [230058]
2020-06-29 14:29:50,457 DEBUG pulse2 229930 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:50,459 DEBUG pulse2 229930 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:50,607 DEBUG MQTT Publishing: emon/3/Pulse 230058
2020-06-29 14:29:50,609 DEBUG MQTT2 Publishing: emon/3/Pulse 230058
2020-06-29 14:29:50,621 DEBUG MQTT3 Publishing: emon/3/Pulse 230058
2020-06-29 14:29:50,714 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230059
2020-06-29 14:29:50,787 DEBUG pulse2 229931 NEW FRAME :
2020-06-29 14:29:50,790 DEBUG pulse2 229931 Timestamp : 1593437390.7875373
2020-06-29 14:29:50,801 DEBUG pulse2 229931 From Node : 3
2020-06-29 14:29:50,803 DEBUG pulse2 229931 Values : [230059]
2020-06-29 14:29:50,804 DEBUG pulse2 229931 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:50,806 DEBUG pulse2 229931 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:51,043 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230060
2020-06-29 14:29:51,053 DEBUG MQTT Publishing: emon/3/Pulse 230059
2020-06-29 14:29:51,046 DEBUG MQTT2 Publishing: emon/3/Pulse 230059
2020-06-29 14:29:51,047 DEBUG MQTT3 Publishing: emon/3/Pulse 230059
2020-06-29 14:29:51,109 DEBUG pulse2 229932 NEW FRAME :
2020-06-29 14:29:51,112 DEBUG pulse2 229932 Timestamp : 1593437391.1093245
2020-06-29 14:29:51,113 DEBUG pulse2 229932 From Node : 3
2020-06-29 14:29:51,115 DEBUG pulse2 229932 Values : [230060]
2020-06-29 14:29:51,117 DEBUG pulse2 229932 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:51,119 DEBUG pulse2 229932 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:51,175 DEBUG MQTT3 Publishing: emon/3/Pulse 230060
2020-06-29 14:29:51,185 DEBUG MQTT2 Publishing: emon/3/Pulse 230060
2020-06-29 14:29:51,195 DEBUG MQTT Publishing: emon/3/Pulse 230060
2020-06-29 14:29:51,372 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230061
2020-06-29 14:29:51,422 DEBUG pulse2 229933 NEW FRAME :
2020-06-29 14:29:51,424 DEBUG pulse2 229933 Timestamp : 1593437391.4218206
2020-06-29 14:29:51,426 DEBUG pulse2 229933 From Node : 3
2020-06-29 14:29:51,427 DEBUG pulse2 229933 Values : [230061]
2020-06-29 14:29:51,429 DEBUG pulse2 229933 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:51,441 DEBUG pulse2 229933 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:51,690 DEBUG MQTT3 Publishing: emon/3/Pulse 230061
2020-06-29 14:29:51,698 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230062
2020-06-29 14:29:51,723 DEBUG MQTT Publishing: emon/3/Pulse 230061
2020-06-29 14:29:51,728 DEBUG MQTT2 Publishing: emon/3/Pulse 230061
2020-06-29 14:29:51,750 DEBUG pulse2 229934 NEW FRAME :
2020-06-29 14:29:51,752 DEBUG pulse2 229934 Timestamp : 1593437391.7496948
2020-06-29 14:29:51,754 DEBUG pulse2 229934 From Node : 3
2020-06-29 14:29:51,756 DEBUG pulse2 229934 Values : [230062]
2020-06-29 14:29:51,757 DEBUG pulse2 229934 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:51,759 DEBUG pulse2 229934 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:51,898 DEBUG MQTT3 Publishing: emon/3/Pulse 230062
2020-06-29 14:29:51,939 DEBUG MQTT Publishing: emon/3/Pulse 230062
2020-06-29 14:29:51,943 DEBUG MQTT2 Publishing: emon/3/Pulse 230062
2020-06-29 14:29:52,027 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230063
2020-06-29 14:29:52,062 DEBUG pulse2 229935 NEW FRAME :
2020-06-29 14:29:52,066 DEBUG pulse2 229935 Timestamp : 1593437392.062415
2020-06-29 14:29:52,067 DEBUG pulse2 229935 From Node : 3
2020-06-29 14:29:52,069 DEBUG pulse2 229935 Values : [230063]
2020-06-29 14:29:52,071 DEBUG pulse2 229935 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:52,073 DEBUG pulse2 229935 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:52,309 DEBUG MQTT3 Publishing: emon/3/Pulse 230063
2020-06-29 14:29:52,357 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230064
2020-06-29 14:29:52,361 DEBUG MQTT2 Publishing: emon/3/Pulse 230063
2020-06-29 14:29:52,366 DEBUG MQTT Publishing: emon/3/Pulse 230063
2020-06-29 14:29:52,376 DEBUG pulse2 229936 NEW FRAME :
2020-06-29 14:29:52,379 DEBUG pulse2 229936 Timestamp : 1593437392.3763926
2020-06-29 14:29:52,382 DEBUG pulse2 229936 From Node : 3
2020-06-29 14:29:52,385 DEBUG pulse2 229936 Values : [230064]
2020-06-29 14:29:52,387 DEBUG pulse2 229936 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:52,390 DEBUG pulse2 229936 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:52,480 DEBUG MQTT Publishing: emon/3/Pulse 230064
2020-06-29 14:29:52,483 DEBUG MQTT2 Publishing: emon/3/Pulse 230064
2020-06-29 14:29:52,520 DEBUG MQTT3 Publishing: emon/3/Pulse 230064
2020-06-29 14:29:52,692 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230065
2020-06-29 14:29:52,801 DEBUG pulse2 229937 NEW FRAME :
2020-06-29 14:29:52,803 DEBUG pulse2 229937 Timestamp : 1593437392.8004935
2020-06-29 14:29:52,805 DEBUG pulse2 229937 From Node : 3
2020-06-29 14:29:52,807 DEBUG pulse2 229937 Values : [230065]
2020-06-29 14:29:52,809 DEBUG pulse2 229937 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:52,819 DEBUG pulse2 229937 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:52,837 DEBUG MQTT3 Publishing: emon/3/Pulse 230065
2020-06-29 14:29:52,912 DEBUG MQTT Publishing: emon/3/Pulse 230065
2020-06-29 14:29:52,919 DEBUG MQTT2 Publishing: emon/3/Pulse 230065
2020-06-29 14:29:53,016 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230066
2020-06-29 14:29:53,023 DEBUG pulse2 229938 NEW FRAME :
2020-06-29 14:29:53,025 DEBUG pulse2 229938 Timestamp : 1593437393.022645
2020-06-29 14:29:53,027 DEBUG pulse2 229938 From Node : 3
2020-06-29 14:29:53,032 DEBUG pulse2 229938 Values : [230066]
2020-06-29 14:29:53,034 DEBUG pulse2 229938 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:53,037 DEBUG pulse2 229938 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:53,233 DEBUG MQTT2 Publishing: emon/3/Pulse 230066
2020-06-29 14:29:53,246 DEBUG MQTT3 Publishing: emon/3/Pulse 230066
2020-06-29 14:29:53,324 DEBUG MQTT Publishing: emon/3/Pulse 230066
2020-06-29 14:29:53,345 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230067
2020-06-29 14:29:53,442 DEBUG pulse2 229939 NEW FRAME :
2020-06-29 14:29:53,444 DEBUG pulse2 229939 Timestamp : 1593437393.4417927
2020-06-29 14:29:53,446 DEBUG pulse2 229939 From Node : 3
2020-06-29 14:29:53,447 DEBUG pulse2 229939 Values : [230067]
2020-06-29 14:29:53,449 DEBUG pulse2 229939 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:53,451 DEBUG pulse2 229939 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:53,635 DEBUG MQTT Publishing: emon/3/Pulse 230067
2020-06-29 14:29:53,643 DEBUG MQTT2 Publishing: emon/3/Pulse 230067
2020-06-29 14:29:53,656 DEBUG MQTT3 Publishing: emon/3/Pulse 230067
2020-06-29 14:29:53,674 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230068
2020-06-29 14:29:53,762 DEBUG pulse2 229940 NEW FRAME :
2020-06-29 14:29:53,765 DEBUG pulse2 229940 Timestamp : 1593437393.7620077
2020-06-29 14:29:53,768 DEBUG pulse2 229940 From Node : 3
2020-06-29 14:29:53,770 DEBUG pulse2 229940 Values : [230068]
2020-06-29 14:29:53,777 DEBUG pulse2 229940 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:53,779 DEBUG pulse2 229940 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:53,984 DEBUG MQTT3 Publishing: emon/3/Pulse 230068
2020-06-29 14:29:53,998 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230069
2020-06-29 14:29:54,061 DEBUG MQTT2 Publishing: emon/3/Pulse 230068
2020-06-29 14:29:54,065 DEBUG MQTT Publishing: emon/3/Pulse 230068
2020-06-29 14:29:54,084 DEBUG pulse2 229941 NEW FRAME :
2020-06-29 14:29:54,086 DEBUG pulse2 229941 Timestamp : 1593437394.083907
2020-06-29 14:29:54,088 DEBUG pulse2 229941 From Node : 3
2020-06-29 14:29:54,093 DEBUG pulse2 229941 Values : [230069]
2020-06-29 14:29:54,094 DEBUG pulse2 229941 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:54,096 DEBUG pulse2 229941 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:54,175 DEBUG MQTT Publishing: emon/3/Pulse 230069
2020-06-29 14:29:54,178 DEBUG MQTT2 Publishing: emon/3/Pulse 230069
2020-06-29 14:29:54,193 DEBUG MQTT3 Publishing: emon/3/Pulse 230069
2020-06-29 14:29:54,327 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230070
2020-06-29 14:29:54,399 DEBUG pulse2 229942 NEW FRAME :
2020-06-29 14:29:54,401 DEBUG pulse2 229942 Timestamp : 1593437394.3993318
2020-06-29 14:29:54,403 DEBUG pulse2 229942 From Node : 3
2020-06-29 14:29:54,405 DEBUG pulse2 229942 Values : [230070]
2020-06-29 14:29:54,409 DEBUG pulse2 229942 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:54,411 DEBUG pulse2 229942 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:54,594 DEBUG MQTT2 Publishing: emon/3/Pulse 230070
2020-06-29 14:29:54,596 DEBUG MQTT Publishing: emon/3/Pulse 230070
2020-06-29 14:29:54,610 DEBUG MQTT3 Publishing: emon/3/Pulse 230070
2020-06-29 14:29:54,655 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230071
2020-06-29 14:29:54,714 DEBUG pulse2 229943 NEW FRAME :
2020-06-29 14:29:54,718 DEBUG pulse2 229943 Timestamp : 1593437394.7143738
2020-06-29 14:29:54,725 DEBUG pulse2 229943 From Node : 3
2020-06-29 14:29:54,728 DEBUG pulse2 229943 Values : [230071]
2020-06-29 14:29:54,731 DEBUG pulse2 229943 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:54,734 DEBUG pulse2 229943 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:54,812 DEBUG MQTT Publishing: emon/3/Pulse 230071
2020-06-29 14:29:54,818 DEBUG MQTT2 Publishing: emon/3/Pulse 230071
2020-06-29 14:29:54,826 DEBUG MQTT3 Publishing: emon/3/Pulse 230071
2020-06-29 14:29:54,984 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230072
2020-06-29 14:29:55,042 DEBUG pulse2 229944 NEW FRAME :
2020-06-29 14:29:55,052 DEBUG pulse2 229944 Timestamp : 1593437395.0418801
2020-06-29 14:29:55,054 DEBUG pulse2 229944 From Node : 3
2020-06-29 14:29:55,057 DEBUG pulse2 229944 Values : [230072]
2020-06-29 14:29:55,059 DEBUG pulse2 229944 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:55,077 DEBUG pulse2 229944 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:55,147 DEBUG MQTT Publishing: emon/3/Pulse 230072
2020-06-29 14:29:55,149 DEBUG MQTT2 Publishing: emon/3/Pulse 230072
2020-06-29 14:29:55,152 DEBUG MQTT3 Publishing: emon/3/Pulse 230072
2020-06-29 14:29:55,286 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230073
2020-06-29 14:29:55,381 DEBUG pulse2 229945 NEW FRAME :
2020-06-29 14:29:55,383 DEBUG pulse2 229945 Timestamp : 1593437395.380669
2020-06-29 14:29:55,385 DEBUG pulse2 229945 From Node : 3
2020-06-29 14:29:55,386 DEBUG pulse2 229945 Values : [230073]
2020-06-29 14:29:55,388 DEBUG pulse2 229945 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:55,390 DEBUG pulse2 229945 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:55,571 DEBUG MQTT3 Publishing: emon/3/Pulse 230073
2020-06-29 14:29:55,573 DEBUG MQTT2 Publishing: emon/3/Pulse 230073
2020-06-29 14:29:55,574 DEBUG MQTT Publishing: emon/3/Pulse 230073
2020-06-29 14:29:55,578 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230074
2020-06-29 14:29:55,593 DEBUG pulse2 229946 NEW FRAME :
2020-06-29 14:29:55,596 DEBUG pulse2 229946 Timestamp : 1593437395.5929716
2020-06-29 14:29:55,599 DEBUG pulse2 229946 From Node : 3
2020-06-29 14:29:55,600 DEBUG pulse2 229946 Values : [230074]
2020-06-29 14:29:55,602 DEBUG pulse2 229946 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:55,604 DEBUG pulse2 229946 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:55,796 DEBUG MQTT Publishing: emon/3/Pulse 230074
2020-06-29 14:29:55,800 DEBUG MQTT2 Publishing: emon/3/Pulse 230074
2020-06-29 14:29:55,803 DEBUG MQTT3 Publishing: emon/3/Pulse 230074
2020-06-29 14:29:55,869 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230075
2020-06-29 14:29:55,908 DEBUG pulse2 229947 NEW FRAME :
2020-06-29 14:29:55,911 DEBUG pulse2 229947 Timestamp : 1593437395.9079857
2020-06-29 14:29:55,914 DEBUG pulse2 229947 From Node : 3
2020-06-29 14:29:55,930 DEBUG pulse2 229947 Values : [230075]
2020-06-29 14:29:55,933 DEBUG pulse2 229947 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:55,936 DEBUG pulse2 229947 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:56,171 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230076
2020-06-29 14:29:56,245 DEBUG pulse2 229948 NEW FRAME :
2020-06-29 14:29:56,248 DEBUG pulse2 229948 Timestamp : 1593437396.245117
2020-06-29 14:29:56,250 DEBUG pulse2 229948 From Node : 3
2020-06-29 14:29:56,265 DEBUG pulse2 229948 Values : [230076]
2020-06-29 14:29:56,267 DEBUG pulse2 229948 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:56,269 DEBUG pulse2 229948 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:56,346 DEBUG MQTT2 Publishing: emon/3/Pulse 230075
2020-06-29 14:29:56,348 DEBUG MQTT3 Publishing: emon/3/Pulse 230075
2020-06-29 14:29:56,349 DEBUG MQTT Publishing: emon/3/Pulse 230075
2020-06-29 14:29:56,458 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230077
2020-06-29 14:29:56,473 DEBUG pulse2 229949 NEW FRAME :
2020-06-29 14:29:56,475 DEBUG pulse2 229949 Timestamp : 1593437396.4731045
2020-06-29 14:29:56,478 DEBUG pulse2 229949 From Node : 3
2020-06-29 14:29:56,480 DEBUG pulse2 229949 Values : [230077]
2020-06-29 14:29:56,482 DEBUG pulse2 229949 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:56,484 DEBUG pulse2 229949 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:56,568 DEBUG MQTT3 Publishing: emon/3/Pulse 230076
2020-06-29 14:29:56,574 DEBUG MQTT Publishing: emon/3/Pulse 230076
2020-06-29 14:29:56,571 DEBUG MQTT2 Publishing: emon/3/Pulse 230076
2020-06-29 14:29:56,689 DEBUG MQTT3 Publishing: emon/3/Pulse 230077
2020-06-29 14:29:56,692 DEBUG MQTT2 Publishing: emon/3/Pulse 230077
2020-06-29 14:29:56,694 DEBUG MQTT Publishing: emon/3/Pulse 230077
2020-06-29 14:29:56,784 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230078
2020-06-29 14:29:56,787 DEBUG pulse2 229950 NEW FRAME :
2020-06-29 14:29:56,789 DEBUG pulse2 229950 Timestamp : 1593437396.7865932
2020-06-29 14:29:56,790 DEBUG pulse2 229950 From Node : 3
2020-06-29 14:29:56,793 DEBUG pulse2 229950 Values : [230078]
2020-06-29 14:29:56,794 DEBUG pulse2 229950 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:56,796 DEBUG pulse2 229950 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:56,914 DEBUG MQTT2 Publishing: emon/3/Pulse 230078
2020-06-29 14:29:56,917 DEBUG MQTT Publishing: emon/3/Pulse 230078
2020-06-29 14:29:56,920 DEBUG MQTT3 Publishing: emon/3/Pulse 230078
2020-06-29 14:29:57,111 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230079
2020-06-29 14:29:57,200 DEBUG pulse2 229951 NEW FRAME :
2020-06-29 14:29:57,203 DEBUG pulse2 229951 Timestamp : 1593437397.199952
2020-06-29 14:29:57,206 DEBUG pulse2 229951 From Node : 3
2020-06-29 14:29:57,208 DEBUG pulse2 229951 Values : [230079]
2020-06-29 14:29:57,211 DEBUG pulse2 229951 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:57,214 DEBUG pulse2 229951 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:57,440 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230080
2020-06-29 14:29:57,449 DEBUG MQTT Publishing: emon/3/Pulse 230079
2020-06-29 14:29:57,452 DEBUG MQTT2 Publishing: emon/3/Pulse 230079
2020-06-29 14:29:57,453 DEBUG MQTT3 Publishing: emon/3/Pulse 230079
2020-06-29 14:29:57,523 DEBUG pulse2 229952 NEW FRAME :
2020-06-29 14:29:57,525 DEBUG pulse2 229952 Timestamp : 1593437397.522739
2020-06-29 14:29:57,527 DEBUG pulse2 229952 From Node : 3
2020-06-29 14:29:57,528 DEBUG pulse2 229952 Values : [230080]
2020-06-29 14:29:57,530 DEBUG pulse2 229952 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:57,532 DEBUG pulse2 229952 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:57,670 DEBUG MQTT2 Publishing: emon/3/Pulse 230080
2020-06-29 14:29:57,673 DEBUG MQTT3 Publishing: emon/3/Pulse 230080
2020-06-29 14:29:57,675 DEBUG MQTT Publishing: emon/3/Pulse 230080
2020-06-29 14:29:57,769 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230081
2020-06-29 14:29:57,835 DEBUG pulse2 229953 NEW FRAME :
2020-06-29 14:29:57,838 DEBUG pulse2 229953 Timestamp : 1593437397.8353379
2020-06-29 14:29:57,839 DEBUG pulse2 229953 From Node : 3
2020-06-29 14:29:57,842 DEBUG pulse2 229953 Values : [230081]
2020-06-29 14:29:57,844 DEBUG pulse2 229953 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:57,846 DEBUG pulse2 229953 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:58,093 DEBUG MQTT2 Publishing: emon/3/Pulse 230081
2020-06-29 14:29:58,099 DEBUG MQTT3 Publishing: emon/3/Pulse 230081
2020-06-29 14:29:58,101 DEBUG MQTT Publishing: emon/3/Pulse 230081
2020-06-29 14:29:58,102 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230082
2020-06-29 14:29:58,149 DEBUG pulse2 229954 NEW FRAME :
2020-06-29 14:29:58,152 DEBUG pulse2 229954 Timestamp : 1593437398.148799
2020-06-29 14:29:58,155 DEBUG pulse2 229954 From Node : 3
2020-06-29 14:29:58,157 DEBUG pulse2 229954 Values : [230082]
2020-06-29 14:29:58,160 DEBUG pulse2 229954 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:58,163 DEBUG pulse2 229954 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:58,223 DEBUG MQTT3 Publishing: emon/3/Pulse 230082
2020-06-29 14:29:58,226 DEBUG MQTT2 Publishing: emon/3/Pulse 230082
2020-06-29 14:29:58,228 DEBUG MQTT Publishing: emon/3/Pulse 230082
2020-06-29 14:29:58,433 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230083
2020-06-29 14:29:58,472 DEBUG pulse2 229955 NEW FRAME :
2020-06-29 14:29:58,474 DEBUG pulse2 229955 Timestamp : 1593437398.471936
2020-06-29 14:29:58,476 DEBUG pulse2 229955 From Node : 3
2020-06-29 14:29:58,478 DEBUG pulse2 229955 Values : [230083]
2020-06-29 14:29:58,479 DEBUG pulse2 229955 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:58,497 DEBUG pulse2 229955 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:58,565 DEBUG MQTT2 Publishing: emon/3/Pulse 230083
2020-06-29 14:29:58,567 DEBUG MQTT3 Publishing: emon/3/Pulse 230083
2020-06-29 14:29:58,568 DEBUG MQTT Publishing: emon/3/Pulse 230083
2020-06-29 14:29:58,757 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230084
2020-06-29 14:29:58,800 DEBUG pulse2 229956 NEW FRAME :
2020-06-29 14:29:58,802 DEBUG pulse2 229956 Timestamp : 1593437398.7997723
2020-06-29 14:29:58,804 DEBUG pulse2 229956 From Node : 3
2020-06-29 14:29:58,806 DEBUG pulse2 229956 Values : [230084]
2020-06-29 14:29:58,807 DEBUG pulse2 229956 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:58,809 DEBUG pulse2 229956 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:58,988 DEBUG MQTT Publishing: emon/3/Pulse 230084
2020-06-29 14:29:58,990 DEBUG MQTT2 Publishing: emon/3/Pulse 230084
2020-06-29 14:29:58,991 DEBUG MQTT3 Publishing: emon/3/Pulse 230084
2020-06-29 14:29:59,087 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230085
2020-06-29 14:29:59,112 DEBUG pulse2 229957 NEW FRAME :
2020-06-29 14:29:59,115 DEBUG pulse2 229957 Timestamp : 1593437399.1123571
2020-06-29 14:29:59,117 DEBUG pulse2 229957 From Node : 3
2020-06-29 14:29:59,119 DEBUG pulse2 229957 Values : [230085]
2020-06-29 14:29:59,121 DEBUG pulse2 229957 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:59,123 DEBUG pulse2 229957 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:59,209 DEBUG MQTT Publishing: emon/3/Pulse 230085
2020-06-29 14:29:59,214 DEBUG MQTT2 Publishing: emon/3/Pulse 230085
2020-06-29 14:29:59,215 DEBUG MQTT3 Publishing: emon/3/Pulse 230085
2020-06-29 14:29:59,416 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230086
2020-06-29 14:29:59,426 DEBUG pulse2 229958 NEW FRAME :
2020-06-29 14:29:59,429 DEBUG pulse2 229958 Timestamp : 1593437399.4260333
2020-06-29 14:29:59,432 DEBUG pulse2 229958 From Node : 3
2020-06-29 14:29:59,435 DEBUG pulse2 229958 Values : [230086]
2020-06-29 14:29:59,437 DEBUG pulse2 229958 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:59,447 DEBUG pulse2 229958 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:59,742 DEBUG Dummy-4 pulse2 : Pulse Channel 15 pulse: 230087
2020-06-29 14:29:59,757 DEBUG MQTT Publishing: emon/3/Pulse 230086
2020-06-29 14:29:59,760 DEBUG MQTT3 Publishing: emon/3/Pulse 230086
2020-06-29 14:29:59,761 DEBUG pulse2 229959 NEW FRAME :
2020-06-29 14:29:59,768 DEBUG pulse2 229959 Timestamp : 1593437399.7614243
2020-06-29 14:29:59,770 DEBUG pulse2 229959 From Node : 3
2020-06-29 14:29:59,759 DEBUG MQTT2 Publishing: emon/3/Pulse 230086
2020-06-29 14:29:59,774 DEBUG pulse2 229959 Values : [230087]
2020-06-29 14:29:59,781 DEBUG pulse2 229959 Sent to channel(start)' : ToEmonCMS
2020-06-29 14:29:59,783 DEBUG pulse2 229959 Sent to channel(end)' : ToEmonCMS
2020-06-29 14:29:59,878 DEBUG MQTT3 Publishing: emon/3/Pulse 230087
2020-06-29 14:29:59,882 DEBUG MQTT Publishing: emon/3/Pulse 230087
2020-06-29 14:29:59,884 DEBUG MQTT2 Publishing: emon/3/Pulse 230087
EmonLibCM_getPulseCount( )
Returns the accumulated count of pulses since the library was initialised, provided that
pulse counting has been enabled.
EmonLibCM_getWattHour(int channel)
Returns the integer value of the accumulated energy in watt-hours since the library was
initialised, for that channel.
But E1 (or En) from the emonTx is not the pulse count, it comes from getWattHour( ), so it’s the power integral over time derived from the c.t. & v.t.
Oh yes I know that and that was my point, I was measuring the power used in 2 completely different ways, on 2 independent systems and that was why I noticed the issue.
Just looked at the chart again and it is quite clear when the current implementation hits the rate limit by the straight line. Before and after it follows the emonTX Energy measurements.
What confused me, which is why I spelled out what the two methods available in the emonTx do, was
when it was obvious that you were not using the pulse count of the emonTx running emonLibCM, instead comparing the analogue energy measured by the emonTx against the pulse input of the RPi.
It looks as if the rate limit will be a little under 5 pulses per second. That’s a good finding and we need to remember it in case another user comes across the problem later. It should really go in the documentation.
A very good finding indeed.
Or change the sleep value. I’m no python guru but Brian’s findings suggest you can only have one pending event while sleeping. I rate limit my pulse counting to ~12Hz primarily as part of the debouncing/deglitching. 5Hz seems a bit restrictive. I think that works out at 18kW doesn’t it? A 3-phase Tesla charger can pump 22kW. Does anyone know the history of the 200 msec sleep?
That’s pre-supposing one pulse = 1 Wh. It’s a common but not standard value, the Optical pulse sensor page in Resources gives 4000 pulses per kWh as the “fastest”, and I think that isn’t the fastest I’ve seen reported/mentioned in the forum. IIRC, it was someone in Continental Europe.
It seemed a good idea at the time?
As I haven’t the faintest clue about how the Pi and emonHub works, I couldn’t hazard a better guess. But it looks to me as if rather more of the pulse handling needs to be done as a low level service inside the Pi itself and rather less in emonHub and the interfacer.
Reading the slope off the graphs, I reckon it was rate limiting at 3.9 kW (first graph) or 3.5 kW (second graph) so that’s not far off 1 per second, not 5.
(That seemed so ridiculous that as a check, I looked at the slope of the emonTx with emonLibCM - it came to about 12 kW, which is close enough to Brian’s 11.4 kW.)
At that rate, I’d suggest that the direct pulse input is unusable except for a 16 A PV infeed, if the meter pulse equates to 1 Wh, even then it might rate-limit at or near maximum production.
Now that you mention it, the 3-phase meter at that house with the Tesla only pulses at 250 per kWh. Maybe they tune the rate to ensure maximum power doesn’t have it flashing insanely fast.
I’m no Python expert myself, but I do know that Pyhton is a multi-thread capable language.
The module Advanced Python Scheduler I use to control various events can have more than one
pending event. Maybe multi-threading is the way to go?
In this old thread, @danbates says “time.sleep() could be a millisecond, one second, 5000 seconds, makes no difference, as long as the program is running the interrupts will happen and callbacks are initiated immediately.”
Dan, does that include the case where multiple interrupts arrive during the one sleep() call?
That sounds about right. Here’s a snippet from APS that does what you’re speaking of:
(that is, I think it does, but I may be off on a tangent too. As I mentioned earlier, I’m no
Python expert, I just dabble with it)
def main():
sched.add_cron_job(read_meter, second='1,6,11,16,21,26,31,36,41,46,51,56')
sched.add_cron_job(read_water_htr, second='3,8,13,18,23,28,33,38,43,48,53,58')
sched.add_cron_job(get_garage_temp, minute='*/1', second='0')
sched.add_cron_job(send_to_pvo, minute='*/5', second='2')
sched.add_cron_job(wrt_daily_data, hour='23', minute='59', second='52')
sched.add_cron_job(wrt_monthly_separator, day='1', hour='0', minute='0', second='3')
while True:
time.sleep(1)
if __name__ == "__main__":
main()
Without the sleep construct, the script runs once then exits.
add_cron_job makes me think each of those is a completely separate unix process launched by the cron daemon.
It appears that way, but it’s just a name. Advanced Python Scheduler has three different ways
to schedule a job. the add_cron_job syntax is very similar to cron syntax, hence the name.
Job scheduling is handled entirely by APS. i.e. cron is not used.
I’m pretty sure the callback on the interrupt will fire even in the sleep mode.
What it needs is to limit how often the read() sends data to the main process. I’m sure I’ve seen one of the other interfacers do that. It is not handling the interrupt that takes the time, it is the rest of the processing. This would simply mean that instead of reporting every pulse, it would report the pulses in the last n seconds.
This was part of the reason for introducing (not merged yet) an MQTT JSON option whereby a single MQTT publish is done for every frame - the publish can be a significant block of the processing time. I have also seen emoncms drop MQTT messages if a value is published too quickly onto the same topic - this only really matters if the data frame is timestamped.
yes but if it is too short, emonhub takes up too much processing time (there is a thread somewhere on that) hence the sleep. It should possibly be refactored into a full callback rather than a polling architecture perhaps, but that is way beyond my Python!
As already hinted at by @Bill.Thomson, any number of callbacks of the same callback can happen any time during ‘sleep’.
Absolutely right @borpin
I think we are agreeing…
Coffee must’ve just kicked in 