Key news summary.
Following the launch of its RX business promotion office, Samsung Electronics conducted a demonstration in which a humanoid robot operated a camera directly (to take a photo) at its first management presentation. The robot hand uses a tendon-driven design developed by the Handrang team under the future-robotics promotion group.
■ Equipment perspective impact analysis
The tendon method does not place motors directly at the finger joints but instead drives them remotely through wires. While the fingertip itself stays light, wire-tension deviation and backlash (hysteresis) govern the repeatability of grip precision. For tasks requiring sub-few-mm micro-stroke manipulation, such as operating a camera shutter, hysteresis compensation is the core challenge.
| Category | Tendon-driven | Direct joint-drive |
|---|---|---|
| Fingertip weight | Light | Relatively heavy |
| Force-transmission path | Wire (indirect) | Motor shaft (direct) |
| Main error sources | Tension deviation / hysteresis | Backlash / gear play |
| Precision-grip difficulty | Depends on compensation algorithm | Depends on the mechanism’s own precision |
One-line summary. The very mechanism that lightens the hand always shifts the burden onto the control side.