Inspection robots in the plant: what they're really for (and when a sensor is enough)
The inspection robot is the most spectacular use case. It’s also the one where you have to be most honest, because the “wow” effect often hides the real question: what does it solve, and at what cost compared with a simpler option.
What a robot does well
A mobile robot fitted with thermal and acoustic cameras runs the rounds nobody enjoys: detecting a compressed-air leak you can’t hear, spotting a hot spot on an installation, reading gauges, checking parameters in harsh or dangerous zones. It passes at a fixed time, always the same way, and produces timestamped readings that can’t be “tidied up.” In a large or hard-to-access environment, that’s real value: you see the drift coming before the breakdown.
The honest question: would a fixed sensor do?
Before talking robots, I always ask: wouldn’t a fixed sensor, far cheaper, do the same job on that specific point? If you’re monitoring a single critical piece of equipment, the answer is often yes. The robot earns its place when there are many points to cover, over a large area, with repetitive rounds, not to replace a one-off measurement a sensor costing a few tens of euros would handle. The right decision is never “is it impressive,” it’s “is it the most frugal solution to the problem.”
The factor people underestimate: the teams
A robot moving through the workshop is prepared with the teams, not behind their backs. Presented as a tool that does the thankless rounds and frees up time for higher-value interventions, it’s well received. Imposed without explanation, it worries people. Success rests as much on change management as on technology: it’s the part you prepare first, and the one most often neglected.
Keep the human who decides
The robot sees and alerts; it doesn’t decide. The maintenance technician interprets, contextualizes and arbitrates. We augment the team’s eye, we don’t replace it; and that’s precisely what makes the tool acceptable and durable.
For the full picture, read the guide AI in industry. See also: Where AI has no business being. Wondering where to start? Gauge your AI maturity in 2 minutes, or let’s talk for 20 minutes.