Error proofing manual assembly: fixtures, fixed cameras, projection, smart gloves and Trenon compared

Most plants already combine several ways to error-proof manual work. Trenon adds a check on the work itself: a camera, worn by the operator or mounted at the station, verifies every critical step as it is performed, at any manual station.

Book a 30-minute call See how it works

Approaches comparedSix

Step by stepEvery critical step, as it is performed

Works withYour fixtures, testers and end-of-line checks

At a glance

Six approaches side by side

Approach	What it checks	Best for	Setup
Fixtures and sensors	Presence and orientation in a defined position, right bin, tool completion	Fixed parts and fixed actions at high volume	Hardware per station
Fixed cameras	Presence, position, colour, labels; newer systems also hand-action sequence	Benches where the part sits in place and the view is clear	Mounting, lighting, teach-in
Projection and guided assembly	Guides each step and confirms hands reached the right place	Long sequences at a fixed bench and frequent changeovers	Per station
Smart gloves and wearable sensors	Actions with a clear acoustic or force signature, such as a connector click	Steps whose critical moment has a distinct click or force	Low to medium
Visual inspection	Anything a person can see, at the end of a station or line	New products and final checks	Low to start
Trenon (camera worn or mounted)	Every critical step as it is performed: presence, position, sequence, variant	Any manual station: benches where the part sits in place, work inside a vehicle, around large parts, mixed-model lines	About three weeks per station

Why check the step

It sees the work as it is done

Most manual errors happen in the hands of the operator: a clip not engaged, a connector not seated, a part left out, a step skipped. A camera, worn by the operator or mounted at the station, sees exactly that, in the moment it happens.

Sees where the hands are

Worn, the camera goes inside a vehicle, behind a panel, around a large part. Mounted, it watches a bench where the part stays in view.

Follows the step

The check follows the step, not a fixed part position, so it works on mixed-model lines and on work that moves.

Nothing changes on the line

Safety glasses, a headband or a small camera at the station, your network and local compute. The process stays as it is.

Fixed while it is cheap

An alert at the station names what is missing or wrong, so it is corrected in seconds, before the unit moves on.

Works alongside what you have

Add a step-by-step check to the station

Trenon does not ask you to remove anything. Fixtures, torque tools and electrical testers keep doing their job. Trenon checks the manual steps around them, the ones that depend on a person doing every step right on every unit.

Start with one station and the few errors that cost you most.
Run Trenon next to your current checks during the pilot and compare.
Roll out station by station once the numbers agreed up front are met.

How it works

See, verify, alert

See

The camera, worn by the operator or mounted at the station, sees the step as it is performed.

Verify

Each action is checked against the required process and configuration: presence, position, sequence.

Alert

An alert at the station tells the operator exactly what is missing or wrong, while it can still be fixed: a light or screen message to see, a tone or spoken instruction to hear.

FAQ

Questions

Worn or mounted camera: which one does Trenon use?

Both. A worn camera (safety glasses or headband) sees what the operator sees, so it checks work inside a vehicle and around large parts. A camera mounted at the station fits benches where the part stays in view. We choose per station with you.

Does Trenon replace fixtures and poka-yoke devices?

It works alongside them. Fixtures and testers keep doing what they do; Trenon checks the manual steps around them and tells the operator right away when one is missing or wrong.

How does Trenon handle many variants?

The checks are configured per variant from your work instructions, so a variant change is a configuration change, not new hardware.

How fast can a station go live?

About three weeks: understand the station, configure and validate the checks, then deploy on the line and train the team.

Pilot

Start with one station

Bring one manual assembly station. In 30 minutes we tell you which checks Trenon can verify there and what a three-week pilot looks like.

Book a 30-minute call

With Nadir Harouak, CEO. Or write to hello@trenon.ai.