GB1364625A - Digital data processing system - Google Patents
Digital data processing systemInfo
- Publication number
- GB1364625A GB1364625A GB3332670A GB3332670A GB1364625A GB 1364625 A GB1364625 A GB 1364625A GB 3332670 A GB3332670 A GB 3332670A GB 3332670 A GB3332670 A GB 3332670A GB 1364625 A GB1364625 A GB 1364625A
- Authority
- GB
- United Kingdom
- Prior art keywords
- computer
- faults
- computers
- fault
- units
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/26—Control of fuel supply
- F02C9/42—Control of fuel supply specially adapted for the control of two or more plants simultaneously
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Devices In Control Systems (AREA)
- Hardware Redundancy (AREA)
Abstract
1364625 Digital computers; error detection DEFENCE SECRETARY OF STATE FOR 6 July 1971 [9 July 1970] 33326/70 Heading G4A Various errors in the control system of a computer controlled plant (e.g. one or more gas turbines in an aircraft) are corrected by means of an interchangeable apparatus. The apparatus.-Two gas turbines 114, 214 are controlled by digital computers 100, 200 connected thereto by input/output units 107, 207 (including multiplexers 108, 208) and transducers 112, 118, 212, 218. The system is notionally divided into an upper and lower channel (divided by line o) but the various components of the channels are interconnected as shown and control does not necessarily flow along the respective channel, e.g. transducers 118 are controlled via l/o unit 207. The transducers (actuators or sensors) are generally analogue and A/D and D/A converters are provided in units 107, 207. Two pilot's throttle levels 114, 214 are provided. Fault response units 126A, 226A break the power lines to the respective computers 100, on detection of certain faults. When one computer is thus disconnected the other one is informed and activates a standby program for the other engine so that this computer controls both engines. The faults which may be detected include error in the fault units, failure of communication between the computer and its engine, fault in a transducer, or faults in one computer reading the connection/non-connection of the other computer and they are detected by diagnostic programs using check calculations. The response to the first two faults is described (Figs. 2 and 3, not shown). In another embodiment (Fig. 4, not shown), four computers normally control four respective engines and a similar fault correction system is described. A detailed computer program, the same for each computer 100, 200, is described (Figs. 5 and 16 to 23, not shown). Means are provided for preventing a computer being disconnected for transient faults. In a modification, computer 100 normally controls both engines while computer 200 only operates one section of its program and in another modification two computers control one engine. The disclosure is the same as that of divided out Specification 1,364,626.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3332670A GB1364625A (en) | 1970-07-09 | 1970-07-09 | Digital data processing system |
GB1263674A GB1364626A (en) | 1970-07-09 | 1971-07-06 | Digital data processing system |
DE19712134079 DE2134079B2 (en) | 1970-07-09 | 1971-07-08 | Arrangement for redundant process computer control |
FR7125156A FR2104778B1 (en) | 1970-07-09 | 1971-07-09 | |
US378821A US3875390A (en) | 1970-07-09 | 1973-07-13 | On-line computer control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3332670A GB1364625A (en) | 1970-07-09 | 1970-07-09 | Digital data processing system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1364625A true GB1364625A (en) | 1974-08-21 |
Family
ID=10351496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3332670A Expired GB1364625A (en) | 1970-07-09 | 1970-07-09 | Digital data processing system |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2134079B2 (en) |
FR (1) | FR2104778B1 (en) |
GB (1) | GB1364625A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2000327A (en) * | 1977-06-20 | 1979-01-04 | Mitsubishi Electric Corp | Elevator control apparatus |
GB2132796A (en) * | 1982-11-25 | 1984-07-11 | Decca Ltd | Data logging system |
GB2237904A (en) * | 1984-02-28 | 1991-05-15 | Lucas Ind Plc | Digital control system |
US5067080A (en) * | 1985-04-11 | 1991-11-19 | Lucas Industries Public Limited Company | Digital control system |
GB2328352A (en) * | 1997-08-12 | 1999-02-17 | Lucent Technologies Uk Limited | Redundant communication network |
EP2128405A2 (en) | 2008-05-22 | 2009-12-02 | United Technologies Corporation | Systems and methods involving multiplexed engine control signals |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2344063A1 (en) * | 1976-03-10 | 1977-10-07 | Smiths Industries Ltd | AT LEAST TWO-WAY DIGITAL CONTROL CIRCUIT |
GB1587792A (en) * | 1977-06-02 | 1981-04-08 | Bendix Corp | Digital flight guidance system |
US4387426A (en) * | 1979-09-06 | 1983-06-07 | Rolls-Royce Limited | Digital data processing system |
DE3007960C2 (en) * | 1980-03-01 | 1982-08-12 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Electronic signal box |
CN112377312B (en) * | 2020-07-31 | 2021-12-24 | 西北工业大学 | Self-repairing parallel fuel control system and fault judgment and repair method |
-
1970
- 1970-07-09 GB GB3332670A patent/GB1364625A/en not_active Expired
-
1971
- 1971-07-08 DE DE19712134079 patent/DE2134079B2/en not_active Withdrawn
- 1971-07-09 FR FR7125156A patent/FR2104778B1/fr not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2000327A (en) * | 1977-06-20 | 1979-01-04 | Mitsubishi Electric Corp | Elevator control apparatus |
GB2000327B (en) * | 1977-06-20 | 1982-04-07 | Mitsubishi Electric Corp | Elevator control apparatus |
GB2132796A (en) * | 1982-11-25 | 1984-07-11 | Decca Ltd | Data logging system |
GB2237904A (en) * | 1984-02-28 | 1991-05-15 | Lucas Ind Plc | Digital control system |
GB2237904B (en) * | 1984-02-28 | 1991-10-02 | Lucas Ind Plc | Digital control system |
US5067080A (en) * | 1985-04-11 | 1991-11-19 | Lucas Industries Public Limited Company | Digital control system |
GB2328352A (en) * | 1997-08-12 | 1999-02-17 | Lucent Technologies Uk Limited | Redundant communication network |
EP2128405A2 (en) | 2008-05-22 | 2009-12-02 | United Technologies Corporation | Systems and methods involving multiplexed engine control signals |
EP2128405A3 (en) * | 2008-05-22 | 2012-08-01 | United Technologies Corporation | Systems and methods involving multiplexed engine control signals |
Also Published As
Publication number | Publication date |
---|---|
DE2134079A1 (en) | 1972-01-20 |
FR2104778A1 (en) | 1972-04-21 |
FR2104778B1 (en) | 1977-01-28 |
DE2134079B2 (en) | 1980-02-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PCNP | Patent ceased through non-payment of renewal fee |