Elevator – industrial lift truck – or stationary lift for vehicle – Having computer control of elevator – Includes redundant circuitry
Patent
1996-12-27
1998-09-08
Nappi, Robert
Elevator, industrial lift truck, or stationary lift for vehicle
Having computer control of elevator
Includes redundant circuitry
187247, B66B 128, G05B 1500
Patent
active
058047786
ABSTRACT:
An elevator control data intercommunication programmer including a main board equipped with master and slave CPUs for controlling the operation of the elevator, EEPROMs for providing operation data to the CPUs, a DSP for controlling vector operation of the elevator's motor, and a data communication port for data communication with an external microprocessor unit. Through the data communication port, data can be programmed in the EEPROMs, so that the elevator operation data (parameters) in the memory of a failed CPU can be copied to another CPU for replacement.
REFERENCES:
patent: 4567560 (1986-01-01), Polis et al.
patent: 4999768 (1991-03-01), Hirokawa
patent: 5266891 (1993-11-01), Kumar et al.
patent: 5297260 (1994-03-01), Kametani
patent: 5616894 (1997-04-01), Nieminen et al.
Chang Hsin-San
Chang Liao-Chia
Chen Ching-Mau
Chuang Wen-Wei
Lin Tzu-Yuan
Nappi Robert
Yungtay Engineering Co., Ltd.
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