Excavating
Patent
1989-07-21
1992-06-30
Smith, Jerry
Excavating
G06F 1100
Patent
active
051270072
ABSTRACT:
A system (1) with electronic modules (6, 7, 8, 9, 15, 19, 20, 27, 28, 35, 44) exhibits at least one microprocessor (6) for controlling the operation of the system (1) and which monitors the correct operation and, when it detects an operational fault, periodically repetitively generates a control signal which is associated with the operational fault detected in each case and which controls a warning signal generator (47) which, in correspondence with the control signal, generates a warning signal which is reproduced as perceptible warning event the microprocessor (6) generates as control signals sequences (90) of binary-coded control pulse trains (91, 95) which consist of a number N of serially successive control pulse trains (91, 95) which are binary coded in accordance with the operational fault detected in each case, and the warning signal generator (47) generates, in correspondence with the sequences (90) of binary-coded control pulse trains (91, 95), sequences (97) of binary-coded warning signal trains (98, 102), which are reproduced as sequences (106) of binary-coded warning events (104, 105).
REFERENCES:
patent: 3701019 (1972-11-01), Jackson
patent: 3936745 (1976-02-01), Harrington
patent: 4769817 (1988-09-01), Krohn et al.
patent: 4813042 (1989-03-01), Maale et al.
patent: 4866713 (1989-09-01), Worger et al.
patent: 4967347 (1990-10-01), Smith et al.
Chung Phung M.
Smith Jerry
U.S. Philips Corporation
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