What is OEE?
OEE, or overall equipment effectiveness, shows how well a line uses its planned production time. It multiplies three factors: availability, performance and quality.
Availability is the share of planned time the line was running. Performance is how close it ran to its ideal speed. Quality is the share of output that was good.
How do the two approaches compare?
| Signal-based OEE | Camera-based OEE | |
|---|---|---|
| Data comes from | Machine signals and sensors | CCTV video |
| Best fit | Automated machines that report their state | Manual and assembly lines |
| What it needs | Machine signals, sensors or connections | Camera views of the line and access to their streams |
| Manual stations | Hard to measure: no signal | Measured from the video |
When does camera-based OEE make sense?
Camera-based OEE makes sense when the work is done by people, or when older machines have no signal to read. It can also show what a machine signal cannot, such as whether an operator is present.
What does FACSOR measure?
- Availability and performance
- Operator presence and idle time, near real time
- Cycle time for each completed cycle
- Shift output, with a projection during the shift
- Worker efficiency, reported separately from OEE
What does camera-based OEE not measure?
FACSOR does not judge quality or defects. A full OEE score therefore needs the quality figure from your own records, such as your rejection or rework data.
Questions and answers
Is camera-based OEE as good as signal-based OEE?
They suit different lines. Signal-based OEE fits automated machines. Camera-based OEE fits manual work, where a machine signal does not exist.
Can I use both?
Yes, in principle. A plant can read signals on automated machines and use cameras on manual stations.
Does camera-based OEE need sensors?
No. FACSOR works from the CCTV cameras you already have, with no sensors on the line.