DUTY ON/OFF RUSH-HOUR RUNNING MODE:IT SATISFIES THE RUNNING REQUIREMENTS IN THE RUSH HOURS OF
DUTY ON/OFF THE PUBLIC OCCASIONS IN THE OFFICE BUILDING AND ETC. EVEN OPERATION MODE:IT ADOPTS
THE MINIMIZED WAITING PERIOD DISTRIBUTION PRINCIPLE WITH THE PROMPT AND REASONABLE ELEVATOR
RESPONSE. IDLE RUNNING MODE: THE ELEVATORS HAVE BEEN EVENLY DISTRIBUTED IN THE DESIGNATED AREA
TO WAIT FAR CALL IN INDLE TIMES IN ORDER TO GUARANTEE THE QUICK AND TIMELY RESPONSE TOWARDS THE
OUTER BALLS.