| 摘要 |
<p>In a scanning type elevator control system, various control signals associated with the individual landings are serially stored in shift registers in the order of the landings. Circulation of the signals through the shift registers is synchronized with the scanner so that the signals associated with a particular landing are presented to the supervisory control each time the scanner is scanning the particular landing. When a shift register is utilized as a floor selector a signal representing the position of the car is advanced or retarded in the scanning sequence as the car moves from one floor to the next.</p> |
