Floor Robot Shift Reports: Reading the Log for Weekly Decisions

What does a floor robot shift report actually show?

A floor robot shift report is a record of what the machine was asked to do, what it finished, and where it stopped. Most vendor reports carry the same core fields: area covered, routes completed, run time, water and chemical use, obstacle stops and zones left incomplete. Read them in that order every morning.

Tennant's AMR process guide describes reports that break out robotic, manual and training runs, the time of day and duration of robotic use, and a percentage complete for each route. It also says maps can highlight areas where a scrubber repeatedly meets obstacles. Those maps are often the quickest route to a useful fix.

Coverage comes first, then completion, then pauses, then exceptions. Each answer narrows the next question. Jumping straight to the exception count tends to produce guesses.

How do you read coverage without trusting a single number?

Coverage is the field most often misread. Avidbots, a vendor, defines true covered area as the area physically covered while the robot executes its cleaning plan, shown as shading on a cleaning report map. Its productivity measure divides total facility area by time taken. Those are vendor definitions, so use them as shared vocabulary rather than as a neutral benchmark.

Hold the shaded map against the planned route. A route that reports complete but leaves gaps along a wall or under a display shelf is a coverage problem, even when the percentage looks healthy.

Which numbers belong on the weekly review?

Route completion is the number to track week over week, but only next to the unresolved share. Congruence Market Insights, a market analysis, uses an illustrative example: at 95 percent completion, 5 percent of scheduled coverage needs investigation, and lifting completion to 98 percent cuts that unresolved portion by 60 percent. The source labels these figures as illustrative, so use them to frame the arithmetic, not as a forecast for your floor.

Tennant's guide also advises avoiding routes longer than one and a half hours and splitting space into zones sized to the water tank. A route that regularly runs long is a route design question before it is a staffing question.

How should pauses and exception events be sorted?

A pause and an exception are not the same thing. A pause is often planned, such as a tank refill or a dock visit. An exception is a stop the robot cannot clear alone. Toolsense, a cleaning fleet guide, lists low battery or failed charging, blocked brushes, full tanks, mission interruption, error codes, maintenance due, and repeated failures at the same site as conditions to route to a person.

Timing tells the story. Allbotix, a monitoring vendor, describes anomaly triggers such as a robot stopped beyond its expected time, a route deviation, low battery without docking, and repeated retries. A brief stop at the same spot every night is a different problem from a single stop on an unusual night.

Why can an all-green dashboard still hide a slow shift?

A dashboard can show every unit healthy while the shift falls behind. A monitoring article on connectrf.com, written about warehouse AMRs, notes that delays get absorbed by retries and buffers and never raised as faults, so throughput drifts while status stays green. The same logic applies to floor scrubbers: a route that finishes late without an error will not show up as an error.

Carry open faults forward. Keep a short carry-over list on the weekly review and leave an item there until it is closed or explained. Otherwise supervisors rediscover the same problem every Monday.

What does a weekly decision checklist look like?

Run the same checks each week so route, staffing and service decisions rest on the same evidence.

• Flag any zone whose completion sits below target on two shifts in a row, not just one.
• Trace repeated obstacle stops to a physical cause, such as a moved cart, a chair pattern or a blocked door, and change the route or layout before changing headcount.
• Check each route against the one and a half hour guideline and against the water tank capacity for its zone.
• Count low battery and charging faults by dock. A dock with repeated faults goes to a service call, not a staffing discussion.
• Assign people only to zones the robot leaves incomplete at a time someone is actually on shift.
• Keep last week's open faults on the list until each is closed or explained.

What do published figures add to your own log?

Gausium, a vendor, reports that on São Paulo Metro Line 5 two Omnie robots cut platform cleaning from about 3.5 hours to roughly 40 minutes, and that water use fell from around 980 L to 15 L per operation. Those figures are vendor-reported and come from one site, so ask for the underlying log before quoting them internally.

For a manual baseline, Sproutmation, which writes about autonomous scrubber return on investment, estimates that a skilled operator cleans 6,000 to 9,000 sq ft per hour in real facilities. That is the author's estimate, not a measured study. Compare it against the area-per-hour figure in your own report, not against a brochure.

Where does a robot lease fit into the review?

When the log shows a fault that repeats across docks or shifts, the next step is usually service. When it shows zones no robot schedule can reach, the question becomes capacity. Service Robot Co. is a full-service commercial robot integrator for US businesses. We are OEM-neutral, so we select robots across manufacturers that fit the floor, then lease, deploy, integrate, train and service each unit through a nationwide US engineer network.

Our lease runs three years on financing, with one fixed payment quoted after a site assessment. Bring the last four weeks of shift reports to that assessment, and the review starts from your data rather than a generic floor plan.