GB2009450A - Environmental parameter control - Google Patents
Environmental parameter controlInfo
- Publication number
- GB2009450A GB2009450A GB7832688A GB7832688A GB2009450A GB 2009450 A GB2009450 A GB 2009450A GB 7832688 A GB7832688 A GB 7832688A GB 7832688 A GB7832688 A GB 7832688A GB 2009450 A GB2009450 A GB 2009450A
- Authority
- GB
- United Kingdom
- Prior art keywords
- time
- environmental parameter
- parameter control
- switching times
- day
- 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.)
- Granted
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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/045—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using logic state machines, consisting only of a memory or a programmable logic device containing the logic for the controlled machine and in which the state of its outputs is dependent on the state of its inputs or part of its own output states, e.g. binary decision controllers, finite state controllers
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G15/00—Time-pieces comprising means to be operated at preselected times or after preselected time intervals
- G04G15/006—Time-pieces comprising means to be operated at preselected times or after preselected time intervals for operating at a number of different times
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electric Clocks (AREA)
Abstract
An environmental control arrangement includes an electronic time switch controller with a memory for storing information relating to switching times in each of a plurality of zones to be controlled. Information is fed into identifiable locations in the store, and means are provided for comparing the stored information with data representative of the time of day to provide an output whenever the time of day corresponds to one of the stored switching times. The invention has particular application in a central heating system. <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7832688A GB2009450B (en) | 1977-05-09 | 1978-08-09 | Enivironmental parameter control |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1939277 | 1977-05-09 | ||
GB7832688A GB2009450B (en) | 1977-05-09 | 1978-08-09 | Enivironmental parameter control |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2009450A true GB2009450A (en) | 1979-06-13 |
GB2009450B GB2009450B (en) | 1982-06-09 |
Family
ID=26254028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7832688A Expired GB2009450B (en) | 1977-05-09 | 1978-08-09 | Enivironmental parameter control |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2009450B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2137770A (en) * | 1983-04-07 | 1984-10-10 | Robert John Cobbold | Control of Heating Systems |
GB2143966A (en) * | 1983-07-26 | 1985-02-20 | Stephen Day | Electronic apparatus for switching at predetermined times |
CH655587B (en) * | 1983-09-22 | 1986-04-30 | ||
GB2183367A (en) * | 1985-11-27 | 1987-06-03 | Diamond H Controls Ltd | Timer for appliances |
GB2234366A (en) * | 1989-06-06 | 1991-01-30 | Smith Meters Ltd | Time controls |
-
1978
- 1978-08-09 GB GB7832688A patent/GB2009450B/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2137770A (en) * | 1983-04-07 | 1984-10-10 | Robert John Cobbold | Control of Heating Systems |
GB2143966A (en) * | 1983-07-26 | 1985-02-20 | Stephen Day | Electronic apparatus for switching at predetermined times |
CH655587B (en) * | 1983-09-22 | 1986-04-30 | ||
EP0156864B1 (en) * | 1983-09-22 | 1988-11-30 | Sabrina SA | Electric power switch containing selfprogrammed control timer with continuously refreshed cycle of on/off sequences |
GB2183367A (en) * | 1985-11-27 | 1987-06-03 | Diamond H Controls Ltd | Timer for appliances |
GB2183367B (en) * | 1985-11-27 | 1989-11-22 | Diamond H Controls Ltd | Timer for appliances |
GB2234366A (en) * | 1989-06-06 | 1991-01-30 | Smith Meters Ltd | Time controls |
Also Published As
Publication number | Publication date |
---|---|
GB2009450B (en) | 1982-06-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |