Safety device of automatic ladder
The invention provides a safety device of an automatic ladder, having: an adjacent sensor (6) to detect whether an object (5) approaches a skirtboard (3); a time sequence signal generating part (8) to generate the time sequence signal of the adjacent sensor on basis of existence of approaching objec...
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| Hauptverfasser: | , , , , , , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention provides a safety device of an automatic ladder, having: an adjacent sensor (6) to detect whether an object (5) approaches a skirtboard (3); a time sequence signal generating part (8) to generate the time sequence signal of the adjacent sensor on basis of existence of approaching objects; an approaching detection part (410) to detect the difference of the time sequence signal and judge whether there are above mentioned approaching objects; and a warning part (11) to warn the passenger on the automatic ladder according to the detected result. |
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