EP0373958A2 - Appareil contrôlé dans le temps - Google Patents

Appareil contrôlé dans le temps Download PDF

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Publication number
EP0373958A2
EP0373958A2 EP89313147A EP89313147A EP0373958A2 EP 0373958 A2 EP0373958 A2 EP 0373958A2 EP 89313147 A EP89313147 A EP 89313147A EP 89313147 A EP89313147 A EP 89313147A EP 0373958 A2 EP0373958 A2 EP 0373958A2
Authority
EP
European Patent Office
Prior art keywords
appliance
timing signals
time
operable
receiving
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.)
Withdrawn
Application number
EP89313147A
Other languages
German (de)
English (en)
Other versions
EP0373958A3 (fr
Inventor
Arthur Monks
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.)
TURNRIGHT CONTROLS Ltd
Original Assignee
TURNRIGHT CONTROLS 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 TURNRIGHT CONTROLS Ltd filed Critical TURNRIGHT CONTROLS Ltd
Publication of EP0373958A2 publication Critical patent/EP0373958A2/fr
Publication of EP0373958A3 publication Critical patent/EP0373958A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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

Definitions

  • This invention relates to time controlled appliances and especially to time controlled domestic appliances such as cooking, heating and laundry appliances.
  • timing information is normally derived from a crystal source using the a.c. mains supply as the power source.
  • a.c. mains supply as the power source.
  • the cost of providing a battery back-up facility and the fact that batteries have only a finite life results in a less than ideal system. It is also necessary in present systems, to re-set the timing information in order to take account of, for example, the change to and from British Summer Time (BST).
  • BST British Summer Time
  • the British Broadcasting Corporation make use of their long wave radio broadcast transmission, which operates at a frequency of 198 kHz, to transmit digitally encoded time and other information without disturbance to the normal, Radio 4, program transmission.
  • This low frequency (LF) transmission offers national coverage for a number of low-bit-rate data channels, one of which is used to transmit a time code which is accurately defined on a minute-by-minute basis.
  • a time controlled appliance comprising means for receiving a time coded radiated signal, means for deriving timing signals from said received signal, and processor means operable on said timing signals for effecting switching of said appliance in accordance with program means set into said processor means.
  • aerial means for receiving said radiated signal, a radio frequency tuner operable on the output of said aerial means, decoder means operable on the output of said tuner for affording timing signals and comparator means for comparing said timing signals with programmed timing signals for effecting switching of said appliance.
  • the aerial means may be effective for receiving a broadcast signal which is phase modulated with time coded information, the decoder means taking the form of a phase decoder for affording said timing signals.
  • a time display may be provided operable from said timing signals.
  • the time controlled appliance may take any convenient form, such as, for example, a cooking appliance, heating appliance, laundry appliance or dish washing appliance.
  • FIG. 1 is a block schematic diagram of a timing circuit arrangement for use in an electric storage fan-heater appliance in accordance with the present invention.
  • switching of electric storage heaters is effected by means of a switch unit which is installed adjacent the electricity board meter which is used to monitor electricity consumption.
  • the switch unit is used to switch all the electric storage heaters connected in a particular installation, and it is not possible to individually control the charging time of any particular storage heater.
  • the timing circuit arrangement shown in the drawing is designed to be incorporated in an electric storage fan-heater appliance for individually controlling the on/off times that the storage heater is connected to the electrical mains, so that each storage heater may be controlled independently of any other storage heaters which may be connected to the same system. In some situations, the fact each individual storage heater is independently controlled may obviate the need for the main switch unit.
  • the timing circuit arrangement shown in the drawing comprises a ferrite aerial 1 for receiving the long wave radio broadcast on 198 kHz transmitted by the BBC, the carrier of which is bi-phase modulated to provide a number of low-bit-rate data channels, one of which is used to transmit a time code which is accurately defined on a minute-by-minute basis.
  • the output from the aerial 1 is fed to a R.F. tuner circuit 2, tuned to the carrier frequency of 198 kHz, and the output of the tuner circuit 2 is fed to a phase decoder circuit 3 for deriving the actual timing information from the received signal.
  • the output from the phase decoder circuit 3 is applied to a comparator circuit 4 which also receives timing information from a unit 5 which is preset with the on/off times that the particular storage heater is required to operate on.
  • the preset timing information may be permanently set into the unit 5, e.g. hard wired, or it may be stored on a suitable memory so that it may be changed when required.
  • the output of the comparator circuit 4 is used to control an on/off switch 6 which connects the heater element or elements 7 of the storage heater to the electrical mains supply 8.
  • the storage heater will also incorporate a control for controlling the heat output, this typically consisting of a thermostat control 9, the output of which is applied to a fan/vent controller 10 in which it is compared with the output from a temperature sensor 11 and which controls a fan 12 and vent 13 of the storage heater.
  • the storage heater may optionally be provided with a time display (not shown).
  • timing information used in the timing circuit arrangement which has been described is derived from the broadcast signal, there is no necessity to provide the usual crystal source or any battery back-up.
  • timing circuit arrangement that has been described is indicated as being an integral part of an electric storage fan-heater appliance, it should be appreciated that it could equally well be used in other forms of time controlled appliance, such as cookers, washing machines, drying machines, dish washing machines immersion heaters, etc.
  • timing circuit arrangement which makes use of the long wave radio broadcast on 198 kHz, it should be appreciated that other time coded broadcasts could equally well be used.
  • time coded broadcasts could equally well be used.
  • Time controlled appliances as described have the particular advantage that they may be individually controlled to operate at any particular time of day, and the time of day will automatically be corrected in the event of any mains failure and also to take account of time changes, such as the change to and from British Summer Time.
  • the switching ON and OFF of the appliances may be controlled, in order to minimise energy costs, and the appliances may also be arranged to form part of an overall system which may include electric/oil/gas/solid fuel appliances, which are all controlled on a real time basis in order to optimise energy use and minimise energy costs in dependence upon particular tariffs and other constraints which may be placed on the system at any particular point in time.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electric Ovens (AREA)
  • Selective Calling Equipment (AREA)
EP19890313147 1988-12-15 1989-12-15 Appareil contrôlé dans le temps Withdrawn EP0373958A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8829287 1988-12-15
GB8829287A GB2226157A (en) 1988-12-15 1988-12-15 Time controlled appliance

Publications (2)

Publication Number Publication Date
EP0373958A2 true EP0373958A2 (fr) 1990-06-20
EP0373958A3 EP0373958A3 (fr) 1991-03-20

Family

ID=10648543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890313147 Withdrawn EP0373958A3 (fr) 1988-12-15 1989-12-15 Appareil contrôlé dans le temps

Country Status (2)

Country Link
EP (1) EP0373958A3 (fr)
GB (1) GB2226157A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT399607B (de) * 1992-07-31 1995-06-26 Vaillant Gmbh Verfahren zum betreiben eines speicherheizgerätes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5557585A (en) * 1993-08-25 1996-09-17 Sony Corp. Broadcast signal receiver which automatically sets an internal clock
GB9418456D0 (en) * 1994-09-14 1994-11-02 Smiths Industries Plc Time switches and systems

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2060953A (en) * 1979-10-02 1981-05-07 Central Electr Generat Board Automatic synchronizing of time- pieces, e.g. time switches, by radio
DE3019279A1 (de) * 1980-05-21 1981-11-26 Wolfgang Dr.-Ing. 6101 Groß-Bieberau Hilberg Sonnenzeit-schaltuhr

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1487062A (en) * 1974-09-03 1977-09-28 Jordan E Master/slave clock system
GB1545765A (en) * 1975-03-27 1979-05-16 Gen Electric Co Ltd Receiving apparatus for a television system
GB2034995A (en) * 1978-10-16 1980-06-11 British Broadcasting Corp Control of broadcast radio and television receivers
US4602340A (en) * 1982-09-29 1986-07-22 Research Activities, Incorporated Information distribution system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2060953A (en) * 1979-10-02 1981-05-07 Central Electr Generat Board Automatic synchronizing of time- pieces, e.g. time switches, by radio
DE3019279A1 (de) * 1980-05-21 1981-11-26 Wolfgang Dr.-Ing. 6101 Groß-Bieberau Hilberg Sonnenzeit-schaltuhr

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT399607B (de) * 1992-07-31 1995-06-26 Vaillant Gmbh Verfahren zum betreiben eines speicherheizgerätes

Also Published As

Publication number Publication date
EP0373958A3 (fr) 1991-03-20
GB8829287D0 (en) 1989-01-25
GB2226157A (en) 1990-06-20

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