The unintended car movement protection (also known as UCMP) is a special device installed in the traction elevator, to stop the elevator in case of the elevator car move when the elevator doors are opening or fully opened in the floor.
Notes and references
- 升降機遇上IoT技術 實時感應保障乘客安全, Sing Tao Daily.
- “不正常移動”用詞比較抽象，用一個顯淺的解釋則為“開門行機”，即在平層後開啟機門及外門時，升降機仍不受控地移動。例如當乘客出入時，升降機仍移動中，便有機會造成傷亡情況。本港過往曾於粉嶺綠悠軒發生一單死亡事故，正正因開門行機而起。, Facebook page: hkelev.com.
|"This elevator only serves two floors." |
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