- Before
- Starts at 06:30 with the overnight read report and the head-end alarm list. “I had 1,287 alarms this morning. I need the six things that are actually broken.”
- Now
- Opens the network map on six incidents, each with one device, its evidence and its cut-off — and confirms the cause before anything goes to the field.
One dark router, from the night's alarms to one fix
Lumina Utilities reads 1,214,600 smart meters and water endpoints over a radio network. On Monday 12 October at 21:40, router R-4471 on pole 22-118, Harrow Fields Road, Westmere, loses its power supply. Here is what happens next, screen by screen, in the working solution.
- 01Tue 06:40
The shift opens on the radio network, not an alarm list
Nadia Okafor · AMI operations analystNadia owns read rates for cycles 12–20. The map draws the Harrow Fields part of the network as it really routes: collector C-031 at Westmere substation, 13 routers, and every meter and water endpoint as a dot coloured by read success. Network read success over 24 hours is 99.62% against a 99.5% target. The overnight alarms read 1,287 → 6 incidents, and the next cut-off at risk is cycle 14, Thursday 15 October.
“412 without a read behind R-4471 · 41 re-routed”
- 02Replay the night
The night, hop by hop
Nadia Okafor · AMI operations analystThe scrubber replays Monday 21:00 to Tuesday 06:40. R-4471 reports AC power lost at 21:40, battery low at 01:58, and its last heartbeat at 02:14. From then on amber spreads out through the meters behind it, and by 03:10 41 have turned blue as they find a new route through R-4468. Beside the map, the cycle 14 cut-off forecast falls from 99.8% to 96.8%, below the 99.5% line.
“If nobody acts, 435 meters on this route have no read at cut-off: 318 electricity and 94 water behind R-4471, and 23 single meters”
- 0306:27–06:31
One device behind 412 silent meters
Root-cause finderThe root-cause finder walks the routing tree. 453 meters share R-4471 as their last parent, and they went silent 02:11–02:14, inside 3 minutes of its last heartbeat. Its parent R-4466 and neighbour R-4468 are healthy. The remote fixer pinged it three times at 06:28: no answer. The outage system shows feeder WM-11 energised, and field history shows the battery last replaced in March 2019, rated 6 years. Root cause at 94% confidence, named at 06:31.
“Feeder WM-11 energised, no outage at pole 22-118 — so the fault is the router's own power tap”
- 04The device
Everything known about R-4471, on one page
Root-cause finderA Corvane LR-900 pole-top router on firmware 5.4.2, installed June 2015, on a pole power tap from feeder WM-11. Its event timeline runs from the lost AC power to the outage check. Of the meters behind it, 150 are direct, 200 two hops out and 103 three hops out. Radio neighbours: R-4466 at −78 dBm, healthy; R-4468 at −84 dBm, which took 41 meters; R-4470 at −93 dBm, too weak to re-route. The May 2024 inspection noted the power tap corroded.
Ping, on-demand reads and a work order are one click from the device.
- 05The other five
Six incidents, each with one device behind it
Alarm grouper and Remote fixerThe alarm grouper folded the 1,287 alarms by shared parent device, time and event pattern: 838 of them are R-4471's. Collector C-117 at Ridgeway Depot is dropping its Northwave Mobile backhaul 01:00–05:00, but its reads are buffered — with Callum Reid. On 286 Oakhurst meters, firmware 7.2.1 drifts the clock past 90 seconds; the remote fixer sent a time sync and 279 recovered. 133 Millbrook water endpoints from a 2014 batch have low batteries. The read watcher found 1,749 single meters with missed reads; 1,186 answered an on-demand read at 06:05.
“A root cause below 80% confidence is shown as unexplained”
- 06The week ahead
Eight cut-offs, forecast before the bill run
Cut-off forecaster · for Hamid Qureshi, billing operationsThe next eight route cut-offs, each with the read rate the cut-off forecaster expects at 23:59 on the day and the incident that changes it. Cycle 14 Westmere: 96.80%, 435 estimated bills, 23 if R-4471 is fixed by 15:00 today. Cycle 17 Millbrook: 98.70%, 155 bills, 22 once the batteries are replaced on Monday 19 October. The assumptions are printed under the table.
“Re-registered meters back-fill their stored reads within 2 hours; buffered collectors hold 72 hours; scattered single meters at each route's 30-day average.”
- 0706:40
Nadia confirms the root cause
Nadia Okafor · AMI operations analystShe reads the evidence on the rail and confirms. The root cause turns green, and the work order drafter starts writing WO-26-18842. Nothing goes to the field yet: the order still needs the field meter supervisor's approval, and the 412 meter-level orders are held.
“Root cause confirmed · the Work order drafter is writing WO-26-18842”
- 08If fixed by 15:00
What the fix time does to Thursday's bills
Cut-off forecasterNadia sets “If R-4471 is fixed by” to 15:00 today. Meters re-register and back-fill their stored reads within 2 hours, so the Westmere cut-off goes back to 99.8% with 23 estimated bills. Fixed by Wednesday 12:00 it would leave 29 meters unread; by Thursday 18:00, 141; not fixed, 435.
“Fixed by 15:00 today · 99.8% at cut-off, 23 estimated bills”
- 09Approved
One order to one pole, not 412 meter visits
Marisol Ventura · Field meter supervisorWO-26-18842: replace the power supply and battery on R-4471, pole 22-118, Harrow Fields Road. Crew 7, Ewan Talbot, today 13:00–15:00, with an LR-900 power supply unit and a 12 V battery pack. The root-cause finder's evidence goes with it. Marisol approves and it goes to crew 7's tablets. Today's orders avoid 507 meter visits, 1,476 this month.
“412 ‘meter not responding’ orders, one per address, are held. They close when R-4471 is back and each meter reads.”
- 10Drafted 06:35
The daily network health report, every number linked
Report writer · for Nadia OkaforThe report writer drafted it at 06:35 from the night's reads, incidents and forecasts: read success, the six incidents and their actions, what it means for billing and for the field. When Nadia signs, it goes to Hamid Qureshi in billing operations, Callum Reid in telecom, Marisol Ventura in field meter services and the AMI operations team.
“Draft · not sent. The Report writer never sends without your signature.”