GB1363100A – Sequential monitor
– Google Patents
GB1363100A – Sequential monitor
– Google Patents
Sequential monitor
Info
Publication number
GB1363100A
GB1363100A
GB5909871A
GB5909871A
GB1363100A
GB 1363100 A
GB1363100 A
GB 1363100A
GB 5909871 A
GB5909871 A
GB 5909871A
GB 5909871 A
GB5909871 A
GB 5909871A
GB 1363100 A
GB1363100 A
GB 1363100A
Authority
GB
United Kingdom
Prior art keywords
voltage
clock pulses
voltages
counter
gate
Prior art date
1970-12-28
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
Application number
GB5909871A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bendix Corp
Original Assignee
Bendix Corp
Priority date (The priority date 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 date listed.)
1970-12-28
Filing date
1971-12-20
Publication date
1974-08-14
1971-12-20
Application filed by Bendix Corp
filed
Critical
Bendix Corp
1974-08-14
Publication of GB1363100A
publication
Critical
patent/GB1363100A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G01—MEASURING; TESTING
G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
G01R19/0038—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing pulses or pulse trains according to amplitude)
G—PHYSICS
G05—CONTROLLING; REGULATING
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
G05D1/0055—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot with safety arrangements
G05D1/0077—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot with safety arrangements using redundant signals or controls
Abstract
1363100 Voltage monitoring system BENDIX CORP 20 Dec 1971 [28 Dec 1970] 59098/71 Heading G1U In an automatic voltage monitoring system, a set of pairs of voltages E1, E2; E4, E5; E6, E7; E8, E9; the voltages of each pair of which should be of equal magnitude but opposite polarity, are sequentially monitored by sequentially opening FET gates 8, 12, 14, 16 under the control of a counter 18 and a decoder 26, 28, 30, 32, the counter being continuously stepped by clock pulses 9 until a fault is detected, whereupon the supply of clock pulses is interrupted and a failure indicator 31 is actuated. The system also includes the feature that if a failure is detected when voltages E1, E2 are examined, thereby stopping the supply of clock pulses 9 to the counter, then an EX-OR gate 50 also detects the absence of the clock pulses, and causes, via a flip-flop 42, which is normally set to Q=O, and associated gates 44, 46, 48, the closing of FET gate 8 and the opening of an FET gate 10, so that a voltage E3 is examined instead of the pair of voltages E1, E2. If voltage E3 is satisfactory, the supply of clock pulses to the counter 18 is restored and cyclic monitoring continues. If, alternately, voltage E3 is not satisfactory, clock pulses are not restored and the system remains stationary with an output on gate 26, and a failure indication. Thus, if no fault exists at all, FET gates 8, 12, 14, 16, are selected continuously and cyclically, but if a fault is found with voltages E1, E2 then before a complete cessation of activity FET gate 10 is opened to monitor voltage E3, and only if voltage E3 is unsatisfactory is the failure indication maintained, otherwise cyclic monitoring recommences.
GB5909871A
1970-12-28
1971-12-20
Sequential monitor
Expired
GB1363100A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US10164670A
1970-12-28
1970-12-28
Publications (1)
Publication Number
Publication Date
GB1363100A
true
GB1363100A
(en)
1974-08-14
Family
ID=22285715
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB5909871A
Expired
GB1363100A
(en)
1970-12-28
1971-12-20
Sequential monitor
Country Status (6)
Country
Link
US
(1)
US3708791A
(en)
JP
(1)
JPS4712825A
(en)
CA
(1)
CA957744A
(en)
DE
(1)
DE2165025A1
(en)
FR
(1)
FR2120048B1
(en)
GB
(1)
GB1363100A
(en)
Families Citing this family (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3955174A
(en)
*
1972-04-20
1976-05-04
C.A.V. Limited
Direction indicator system for road vehicles with trailer adapter means
US3787838A
(en)
*
1972-06-29
1974-01-22
Bendix Corp
Fail safe built-in test equipment
US3909811A
(en)
*
1974-05-17
1975-09-30
Acurex Corp
Multiplexed telemetering system for a plurality of signal sources
US4021793A
(en)
*
1974-10-07
1977-05-03
Gulf & Western Industries, Inc.
Detector device for converting A.C. inputs to an D.C. output and a system for using the same
JPS5344776A
(en)
*
1976-10-01
1978-04-21
Shinko Electric Co Ltd
Failed safe circuit
US5293526A
(en)
*
1985-10-25
1994-03-08
Canon Kabushiki Kaisha
Electronic equipment including a plurality of independently powered apparatus
FI892087A
(en)
*
1988-08-19
1990-02-20
Siemens Ag
KRETS FOER KONTROLL OCH OEVERVAKNING AV EN ELEKTRONISK ELMAETARE.
Family Cites Families (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR1342150A
(en)
*
1962-07-17
1963-11-08
Siemens Ag
Safety device for reactors, chemical processes and similar applications
US3311835A
(en)
*
1963-03-22
1967-03-28
Weston Instruments Inc
Operational rectifier
US3292150A
(en)
*
1963-04-23
1966-12-13
Kenneth E Wood
Maximum voltage selector
US3453539A
(en)
*
1966-12-19
1969-07-01
Gen Electric
Apparatus for sequentially monitoring electrical voltages including a capacitor transfer system and marginal prediction means
US3492589A
(en)
*
1967-04-03
1970-01-27
Honeywell Inc
Failsafe circuit apparatus
US3551824A
(en)
*
1967-08-01
1970-12-29
Honeywell Inc
Control apparatus
US3594789A
(en)
*
1968-01-30
1971-07-20
Honeywell Inc
Counter actuated multiplex monitor circuit
US3539928A
(en)
*
1968-11-13
1970-11-10
United Aircraft Corp
Operational multiplexer
US3579120A
(en)
*
1969-03-28
1971-05-18
Bendix Corp
Self-testing logic gate
1970
1970-12-28
US
US00101646A
patent/US3708791A/en
not_active
Expired – Lifetime
1971
1971-10-22
CA
CA125,863A
patent/CA957744A/en
not_active
Expired
1971-12-20
GB
GB5909871A
patent/GB1363100A/en
not_active
Expired
1971-12-28
FR
FR7146929A
patent/FR2120048B1/fr
not_active
Expired
1971-12-28
DE
DE19712165025
patent/DE2165025A1/en
active
Pending
1972
1972-01-05
JP
JP408672A
patent/JPS4712825A/en
active
Pending
Also Published As
Publication number
Publication date
FR2120048B1
(en)
1974-06-07
US3708791A
(en)
1973-01-02
JPS4712825A
(en)
1972-06-28
FR2120048A1
(en)
1972-08-11
DE2165025A1
(en)
1972-07-06
CA957744A
(en)
1974-11-12
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Legal Events
Date
Code
Title
Description
1974-12-27
PS
Patent sealed [section 19, patents act 1949]
1980-08-06
PCNP
Patent ceased through non-payment of renewal fee
