| 摘要 |
An elevator control apparatus is intended for an elevator having a car and at least one intermediate floor between top and bottom floors thereof. The apparatus includes an upper proximity switch and a lower proximity switch mounted on the car and vertically spaced-apart from each other. There is a vane at each floor for activating the upper proximity switch and the lower proximity switch to produce first and second signals respectively as the proximity switches move adjacent said vanes. There are up latches for each said intermediate floor for changing a state when the first signal is produced and the elevator moves downwardly past each intermediate floor and when the first signal is produced and the elevator is moving upwardly towards each intermediate floor. There is a down latch for each intermediate floor for changing a state when the second signal is produced and the elevator moves upwardly past each intermediate floor and when the second signal is produced and the elevator moves downwardly towards each intermediate floor. Controls are connected to the latches for controlling the elevator movement according to which latches are latched and unlatched. Preferably the latches are operatively inter-connected so only one said latch is latched or unlatched as each signal is produced. The proximity switches may be connected to a car levelling system which levels the car at each floor. Alternatively, the proximity switches may be connected to a car slow down system.
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