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US 11,890,256 B2Granted
Active rollator
AssigneeWistron Corporation
InventorsMing-Ru Syue, Cheng-Hsing Liu, Jia-Hung Lee
Life of this patent
Estimating the term…
Abstract
An active rollator includes an auxiliary frame, a driving assembly, a sensing assembly, and a controller. The sensing assembly is configured to sense an operation area and output a sensing signal. When a user holds handlebars of the auxiliary frame and stands in the operation area, the controller is configured to, according to the sensing signal and a sensing threshold, control the driving assembly to make the auxiliary frame have a motion. Therefore, the active rollator aids the travel of the user.
Claims17
An active rollator, comprising:
- an auxiliary frame, comprising a body and a bottom portion;
- a driving assembly, disposed at the bottom portion and configured to make the auxiliary frame have a motion;
- a sensing assembly, disposed at the body and configured to sense an operation area and output a sensing signal;
- and
- a controller, configured to, according to the sensing signal and a sensing threshold, control the driving assembly to make the auxiliary frame have the motion corresponding to the sensing signal;
- wherein the sensing assembly comprises two distance sensors, the sensing threshold comprises a body distance area and a middle area, the middle area is in the body distance area, each distance sensor is configured to sense the operation area and output a distance signal, the distance sensors sense substantially different parts of the operation area;
- when the distance signals fall in the middle area, the controller controls the driving assembly to drive the auxiliary frame to move in a traveling direction;
- and when the distance signals fall in the body distance area, the controller controls the driving assembly to maintain the movement of the auxiliary frame.
5 more elements
An active rollator, comprising:
- an auxiliary frame, comprising a body and a bottom portion;
- a driving assembly, disposed at the bottom portion and configured to make the auxiliary frame have a motion;
- a sensing assembly, disposed at the body and configured to sense an operation area and output a sensing signal;
- and
- a controller, configured to, according to the sensing signal and a sensing threshold, control the driving assembly to make the auxiliary frame have the motion corresponding to the sensing signal, wherein the sensing assembly comprises a plurality of distance sensors, the sensing threshold comprises a body distance area, each distance sensor is configured to sense the operation area and output a distance signal, the distance sensors sense substantially different parts of the operation area, and when the distance signals fall in the body distance area, the controller controls the driving assembly to drive the auxiliary frame to move in a traveling direction.
2 more elements
An active rollator, comprising:
- an auxiliary frame, comprising a body and a bottom portion;
- a driving assembly, disposed at the bottom portion and configured to make the auxiliary frame have a motion;
- a sensing assembly, disposed at the body and configured to sense an operation area and output a sensing signal;
- and
- a controller, configured to, according to the sensing signal and a sensing threshold, control the driving assembly to make the auxiliary frame have the motion corresponding to the sensing signal, wherein the sensing assembly comprises a horizontal scanning sensor, the sensing threshold comprises a traveling feature, the horizontal scanning sensor is configured to horizontally scan the operation area and output a horizontal scanning signal, and when the horizontal scanning signal falls in the traveling feature, the controller controls the driving assembly to drive the auxiliary frame to move in a traveling direction.
2 more elements
Dependencies are inferred from the claim text.