US 4,307,455 AGranted

Power supply for computing means with data protected shut-down

AssigneeRockwell International Corporation

InventorsJohn E. Juhasz, Pravin J. Shah

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Abstract

A device monitoring and recording apparatus comprises sensing means, computing means, memory storage means and power supply means. The sensing means are operative for sensing device operating parameters and generating data signals corresponding thereto. The computing means process the sensed data signals and the memory storage means stores the data signals from the computing means. The power supply means provides power to the device as well as the computing means and memory storage means and comprises means for sensing a power fault condition and for generating a fault status signal in response thereto, means for feeding the fault status signal to the computing means and means for shutting down the computing means as well as the device upon receipt of a shut-down command from the computing means. The computing means initiates a data protect routine prior to generating the shut-down command.

Claims7

Dependent claims

A device monitoring and recording system comprising:

(a) sensing means for sensing device operating parameters and generating data signals corresponding thereto;
(b) computing means for receiving and processing said data signals;
(c) memory storage means for storing said processed data signals from said computing means;
(d) power supply means for providing power to said device, said computing means and said memory storage means, said power supply means comprising:
(i) means for sensing a power fault condition of said power supply means and for generating a fault status signal in response thereto;
(ii) means for feeding said fault status signal to said computing means, said computing means including means for initiating a data protect routine in response to said fault status signal for storing data being processed by said computing means, said computing means further initiating said data protect routine in response to at least one selected data signal corresponding to other than a fault condition of said power supply means, said computing means generating a shut-down command signal after completion of said data protect routine;
(iii) means for receiving said shut-down command signal from said computing means;
(iv) means for disconnecting said power supply means from said device and said computing means in response to said shut-down command;
(v) means independent of said computing means for disconnecting said power supply means from said device and said computing means;
and
(vi) means for delaying operation of said independent connecting means for a time period substantially greater than that normally required for the computing means to issue said shut-down command in response to said fault status signal.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/020,467Filed 14 Mar 1979 · continuation in part
Priority: 27 Feb 1978
Granted: 22 Dec 1981
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

G07C 5/0858
Using electronic data carriers: wherein the data carrier is removable
G06F 11/1441
At system level: resetting or repowering
G07C 5/085
Registering performance data: using electronic data carriers
F02D 41/22
Electrical control of supply of combustible mixture or its constituents: safety or indicating devices for abnormal conditions