GB1222051A - Improvements relating to electrical data transmission systems - Google Patents

Improvements relating to electrical data transmission systems

Info

Publication number
GB1222051A
GB1222051A GB111969A GB111969A GB1222051A GB 1222051 A GB1222051 A GB 1222051A GB 111969 A GB111969 A GB 111969A GB 111969 A GB111969 A GB 111969A GB 1222051 A GB1222051 A GB 1222051A
Authority
GB
United Kingdom
Prior art keywords
computer
highway
data
chromatograph
signals
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
Application number
GB111969A
Inventor
Peter Mitchell
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.)
Pye Electronic Products Ltd
Original Assignee
Pye Ltd
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.)
Filing date
Publication date
Application filed by Pye Ltd filed Critical Pye Ltd
Priority to GB111969A priority Critical patent/GB1222051A/en
Priority to FR7000347A priority patent/FR2027919A1/fr
Priority to DE19702001428 priority patent/DE2001428A1/en
Priority to NL7006243A priority patent/NL7006243A/xx
Publication of GB1222051A publication Critical patent/GB1222051A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
    • G06F13/22—Handling requests for interconnection or transfer for access to input/output bus using successive scanning, e.g. polling

Abstract

1,222,051. Programmed control. PYE Ltd. Jan. 8, 1969, No.1119/69. Heading G3N. An electrical data transmission system comprises a plurality of laboratory analytical instruments, connected or connectable to a computer by a multi-path data highway means, through a plurality of time-sharing access units connected, or connectable, to the highway at respective locations. As shown, a chromatograph assembly 1 comprises a temperature-controlled oven 2, containing a chromatograph column and detector, an autoinject unit 3 with supply unit 4, an amplifier unit 6 and a recorder unit 7. The chromatograph assembly is connected by plug-and-socket to an access unit 8 which is in turn plugged into data highways 19-21 and a status lead 18. Access units 9, 10 are shown plugged into data highways having status leads 17, 16 respectively. The status leads 16-18 are connected to an interface 12 of a computer 11 and carry address and interrogation signals. The data highway 19 is used to transmit digital information from the computer via an interface 13 to the access units, and digital information is returned on highway 10 to the computer via an interface 14. Analogue signals are transmitted from the amplifier units of the chromatograph assemblies to the computer on data highway 21 interface 15. Each access unit includes a set of switches by which the number of a desired programme of analysis is selected, and a record set of switches which is set up with the reference number of the sample. The computer recurrently scans the status leads to detect whether a chromatograph assembly requires service. The computer services a chromatograph assembly by feeding a combination of address code signals on to data highway 19, the access unit responding by transmitting digital programme and sample reference number signals on line 20. The computer then transmits, if available, the digital control signals for the selected programme. Response digital signals from the chromatograph assembly are transmitted over highway 20 and subsequently, analogue data representative of the analysis is transmitted over highway 21. The programme results are printed out on a teleprinter device 22.
GB111969A 1969-01-08 1969-01-08 Improvements relating to electrical data transmission systems Expired GB1222051A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB111969A GB1222051A (en) 1969-01-08 1969-01-08 Improvements relating to electrical data transmission systems
FR7000347A FR2027919A1 (en) 1969-01-08 1970-01-07
DE19702001428 DE2001428A1 (en) 1969-01-08 1970-01-07 Electrical data transmission system
NL7006243A NL7006243A (en) 1969-01-08 1970-04-29

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB111969A GB1222051A (en) 1969-01-08 1969-01-08 Improvements relating to electrical data transmission systems
NL7006243A NL7006243A (en) 1969-01-08 1970-04-29

Publications (1)

Publication Number Publication Date
GB1222051A true GB1222051A (en) 1971-02-10

Family

ID=26236486

Family Applications (1)

Application Number Title Priority Date Filing Date
GB111969A Expired GB1222051A (en) 1969-01-08 1969-01-08 Improvements relating to electrical data transmission systems

Country Status (4)

Country Link
DE (1) DE2001428A1 (en)
FR (1) FR2027919A1 (en)
GB (1) GB1222051A (en)
NL (1) NL7006243A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6076652A (en) 1971-04-16 2000-06-20 Texas Instruments Incorporated Assembly line system and apparatus controlling transfer of a workpiece

Also Published As

Publication number Publication date
FR2027919A1 (en) 1970-10-02
NL7006243A (en) 1971-11-02
DE2001428A1 (en) 1970-09-03

Similar Documents

Publication Publication Date Title
US4296464A (en) Process control system with local microprocessor control means
US3341820A (en) On-line branch for data processing systems
OA07614A (en) A device for transmitting signals by radio and cable between a central control and recording system and data acquisition devices.
CA2150172A1 (en) Seismic acquisition and transmission system with feature decentralization
JPS5623182B2 (en)
IT8222933A0 (en) BY CABLE, BETWEEN A CENTRAL SYSTEM COMMAND TRANSMISSION DEVICE AND SIGNAL SEQUENTIAL EQUIPMENT VIA RADIO OR DATA ACQUISITION.
FR2390777A1 (en) DATA TRANSMISSION DEVICE
FR2377667A1 (en) SYSTEM FOR BLOCKING THE MEMORY OF A DATA PROCESSING SYSTEM
GB1222051A (en) Improvements relating to electrical data transmission systems
US3725912A (en) Radar video recording system
SE399496B (en) METHOD AND DEVICE FOR IDENTIFYING INCORRECT ADDRESS DECODERS
GB1190473A (en) Improvements in and relating to Computer Systems.
GB1229076A (en)
US3113294A (en) Binary digital data transmission systems
FR2535096B1 (en) DATA PROVIDING DEVICE FOR SIGNAL READING APPARATUS
SU412618A1 (en)
SU983693A1 (en) Device for pickup data input
RU2081452C1 (en) Device which gathers, converts and transmits results of measurement of physical environment characteristics
GB1354290A (en) Analytical apparatus
ATE408194T1 (en) METHOD FOR FAST COMMUNICATION IN A PARALLEL COMPUTER SYSTEM AND PARALLEL COMPUTER SYSTEM OPERATED BY THIS METHOD
SU857966A1 (en) Information exchange device
SU690487A1 (en) Information storing and processing device
SU1256036A1 (en) Microprogram multiplexor channel
SU1151976A1 (en) Data exchange control unit
RU2079882C1 (en) Device which gathers, processes and transmits results of measurements of physical features of environment