Remote Elevator Monitoring, Diagnostics, and Performance Analysis


Some remote elevator monitors track the controller’s status, error codes, and the signals it sends. They cannot tell you what happens at the other end. Does the car move? Does the door open? Is the controller working correctly?

Others use machine learning to reach conclusions. “The door is working” or  “The door is slow”. But they can’t provide the data. How long does it take the door to open or close?

QarVision™ places independent sensors on all of the elevator’s key components to tell you what the elevator is actually doing. You get the data you need to quickly diagnose problems. 

Door problems are estimated to cause 80% of elevator outages. QarVision’s door sensors let you see every door action – opening and closing times, dwell time, car start delay, and door open delay. They also identify door behavior problems such as repeated door opening and closing, door failing to open or close, and elevator movement with the door open.

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Unusual car motion is another major cause of complaints. When passengers say it is “slipping”, “jerking”, or “sluggish”, the accelerometer in QarVision will show you what they mean. Excessive deceleration can also indicate that the elevator is stopping abruptly, possibly causing an entrapment.

Hydraulic valve problems are usually due to pressure and temperature issues. The QarVision Machine Room Monitor records these parameters so you can see the trends and deviations.

A Simple Isolated Elevator

Power to the elevator can cause problems if it is not “clean”, but how do you know? The QarVision Machine room Monitor records current and, with an optional voltage sensor, records voltage. Voltage spikes are a leading cause of controller shutdowns resulting in elevator outages.