The passenger elevator adopts imported special frequency converter, based on advanced technology control theory and designed based on ergonomic principles. The starting, acceleration and braking curves achieve better comfort. It is a real current vector control variable frequency drive system. The permanent magnet synchronous drive system of Sanyo elevator saves more than 48% energy. The professional intelligent group control system can control 8 elevators at the same time. Advanced artificial intelligence and operation database greatly improve the operation efficiency, thereby minimizing the waiting of passengers. time.