| The walker stops abruptly while the person is walking, for example if the computer hangs |
Hand sensors on the handles and a smooth stop by the drive before power is cut; the design goes to a safety engineer for review before trials with people |
| No brake that holds without power in the current drive |
Rollator hand brakes stay as the mechanical brake; no autonomous approach until an unpowered brake is proven |
| Families may not pay $2,990 |
Interviews about past incidents, supervised demonstrations, then paid pilots that measure willingness to pay |
| False alarms and missed falls erode trust |
Both are pilot metrics with a written log |
| Weight: the full prototype kit is estimated at about 25 kg |
A lighter production chassis and the compute module on our own board |
| Component prices move |
An alternative compute platform compared for the production version |
| A camera at home is a privacy concern |
Separate consent for the camera; the call buttons work without it |