GB2123175A - Digital time switching arrangement - Google Patents

Digital time switching arrangement Download PDF

Info

Publication number
GB2123175A
GB2123175A GB08312028A GB8312028A GB2123175A GB 2123175 A GB2123175 A GB 2123175A GB 08312028 A GB08312028 A GB 08312028A GB 8312028 A GB8312028 A GB 8312028A GB 2123175 A GB2123175 A GB 2123175A
Authority
GB
United Kingdom
Prior art keywords
display
switching arrangement
programme
stored
elements
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
Application number
GB08312028A
Other versions
GB8312028D0 (en
GB2123175B (en
Inventor
Malcolm Donald Clapp
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.)
Satchwell Controls Ltd
Original Assignee
Satchwell 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 Satchwell Controls Ltd filed Critical Satchwell Controls Ltd
Priority to GB08312028A priority Critical patent/GB2123175B/en
Publication of GB8312028D0 publication Critical patent/GB8312028D0/en
Publication of GB2123175A publication Critical patent/GB2123175A/en
Application granted granted Critical
Publication of GB2123175B publication Critical patent/GB2123175B/en
Expired legal-status Critical Current

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
    • G05B19/10—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using selector switches
    • G05B19/102—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using selector switches for input of programme steps, i.e. setting up sequence
    • G05B19/104—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using selector switches for input of programme steps, i.e. setting up sequence characterised by physical layout of switches; switches co-operating with display; use of switches in a special way
    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0064—Visual time or date indication means in which functions not related to time can be displayed
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/296—Time-programme switches providing a choice of time-intervals for executing more than one switching action and automatically terminating their operation after the programme is completed

Abstract

In a digital time switching arrangement, e.g. for central heating plant, including an electronic memory in which is stored a programme of operating times there is provided a display means whereby the whole programme of operating times may be displayed simultaneously. The display means may be an array of LEDs or LCDs or a CRT.

Description

SPECIFICATION Digital time switching arrangements This invention relates to digital time switching arrangements.
More particularthe invention relates to digital time switching arrangements of the kind incorporating electronic memory means in which may be stored a programme of operating times for the arrangements.
Such switching arrangements of known form are frequently associated with display means for displaying the stored switch operating times. However, such display means are only capable of displaying at any one time a single operating time so that a display of the whole stored switch operating programme, or even a part thereof, is not available.
According to the present invention there is provided a digital time switching arrangement incorporating electronic memory means in which may be stored a programme of operating times for the arrangement and associated with display means arranged to display all the operating times of the stored programme simultaneously.
Where the memory means is adapted to store a plurality of programmes of operating times the display means is preferably arranged to display simultaneously all the stored operating times relating to any selected one programme.
Preferably the display provided by the display means is in the form of an array of display elements each of which represents a different time period, each display element being arranged to be operative or not according to whether the associated switching arrangement is required by the stored programme to be operative or not during the time period represented by that element.
Normally the time periods represented by the display elements are successive discrete time periods.
In one particular embodiment of the invention the display elements are arranged in columns and rows to form a rectangular matrix array, the elements in each column respectively representing corresponding portions of a plurality of discrete time periods, each of which is represented by the elements in a different row.
The display elements are suitably light sources such as light emitting diodes, or portions of the screen of a cathode ray tube. Alternatively the display elements may be liquid crystal display devices.
Preferably, during each operative period of the switching arrangement the or each corresponding display element is arranged to alternate between its operative and non operative conditions to indicate the operational part of the displayed programme.
One digital time switching arrangement in accordance with the invention will now be described, by way of example, with reference to the accompanying drawing which shows the display provided by a display means associated with the arrangement.
The arrangement is intended for controlling the operation of a central heating plant and incorporates an electronic memory means adapted to store the times at which the plant is required to be switched on and off over a seven day period, the switching arrangement controlling the plant accordingly.
The arrangement includes a display means comprising a close-packed rectangular matrix array of 168 light sources, such as light emitting diodes, arranged in seven rows of twenty-four sources each.
The twenty-four sources in each row represent, from left to right, successive one hour periods through a twenty-four hour period, the sources in successive rows, from top to bottom, representing successive twenty-four hour day periods through a week. Appropriate hour and day legends are provided along the top and left side of the display respectively, as shown in the drawing.
When the display means is activated the light sources representing the hour periods during which the switching arrangement is required by the stored programme to have turned the central heating plant on are illuminated, the other sources being turned off. The whole seven-day stored programme is thus displayed by the display means. In the drawing the illuminated sources only are shown, adjacent illuminated sources being illustrated as a continuous shaded area. Thus it can be seen, for example, that the stored programme requires the plant on Mondays to be switched on at 0700 hours, off at 1300 hours, on again at 1900 hours and off again at 2200 hours.
To indicate the actual operational part of the stored programme, when the plant is on the light sources representing the corresponding period on the display are flashed on and off.
Where the switching arrangement memory stores a plurality of programmes, a switching means may be provided to enable the display means to display any selected one of the stored programmes. Such an arrangement finds application in central heating plant controllers adapted to control the supply of heatto different zones of a building according to different programmes. In such an arrangement the display means preferably provides a further display to indicate the particular zone to which the displayed programme relates, as illustrated in the drawing.
It will be appreciated that whilst in the arrangement described above by way of example the display means comprises a matrix of display elements in the form of light emitting diodes, the display elements may comprise other devices in other arrangements in accordance with the invention. Thus, the elements may comprise liquid crystal devices. Alternatively the display means may comprise a cathode ray tube and the display elements comprise portions of the screen of the cathode ray tube.
1. A digital time switching arrangement incorporating electronic memory means in which may be stored a programme of operating times for the arrangement and associated with a display means arranged to display all the operating times of the stored programme simultaneously.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (12)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Digital time switching arrangements This invention relates to digital time switching arrangements. More particularthe invention relates to digital time switching arrangements of the kind incorporating electronic memory means in which may be stored a programme of operating times for the arrangements. Such switching arrangements of known form are frequently associated with display means for displaying the stored switch operating times. However, such display means are only capable of displaying at any one time a single operating time so that a display of the whole stored switch operating programme, or even a part thereof, is not available. According to the present invention there is provided a digital time switching arrangement incorporating electronic memory means in which may be stored a programme of operating times for the arrangement and associated with display means arranged to display all the operating times of the stored programme simultaneously. Where the memory means is adapted to store a plurality of programmes of operating times the display means is preferably arranged to display simultaneously all the stored operating times relating to any selected one programme. Preferably the display provided by the display means is in the form of an array of display elements each of which represents a different time period, each display element being arranged to be operative or not according to whether the associated switching arrangement is required by the stored programme to be operative or not during the time period represented by that element. Normally the time periods represented by the display elements are successive discrete time periods. In one particular embodiment of the invention the display elements are arranged in columns and rows to form a rectangular matrix array, the elements in each column respectively representing corresponding portions of a plurality of discrete time periods, each of which is represented by the elements in a different row. The display elements are suitably light sources such as light emitting diodes, or portions of the screen of a cathode ray tube. Alternatively the display elements may be liquid crystal display devices. Preferably, during each operative period of the switching arrangement the or each corresponding display element is arranged to alternate between its operative and non operative conditions to indicate the operational part of the displayed programme. One digital time switching arrangement in accordance with the invention will now be described, by way of example, with reference to the accompanying drawing which shows the display provided by a display means associated with the arrangement. The arrangement is intended for controlling the operation of a central heating plant and incorporates an electronic memory means adapted to store the times at which the plant is required to be switched on and off over a seven day period, the switching arrangement controlling the plant accordingly. The arrangement includes a display means comprising a close-packed rectangular matrix array of 168 light sources, such as light emitting diodes, arranged in seven rows of twenty-four sources each. The twenty-four sources in each row represent, from left to right, successive one hour periods through a twenty-four hour period, the sources in successive rows, from top to bottom, representing successive twenty-four hour day periods through a week. Appropriate hour and day legends are provided along the top and left side of the display respectively, as shown in the drawing. When the display means is activated the light sources representing the hour periods during which the switching arrangement is required by the stored programme to have turned the central heating plant on are illuminated, the other sources being turned off. The whole seven-day stored programme is thus displayed by the display means. In the drawing the illuminated sources only are shown, adjacent illuminated sources being illustrated as a continuous shaded area. Thus it can be seen, for example, that the stored programme requires the plant on Mondays to be switched on at 0700 hours, off at 1300 hours, on again at 1900 hours and off again at 2200 hours. To indicate the actual operational part of the stored programme, when the plant is on the light sources representing the corresponding period on the display are flashed on and off. Where the switching arrangement memory stores a plurality of programmes, a switching means may be provided to enable the display means to display any selected one of the stored programmes. Such an arrangement finds application in central heating plant controllers adapted to control the supply of heatto different zones of a building according to different programmes. In such an arrangement the display means preferably provides a further display to indicate the particular zone to which the displayed programme relates, as illustrated in the drawing. It will be appreciated that whilst in the arrangement described above by way of example the display means comprises a matrix of display elements in the form of light emitting diodes, the display elements may comprise other devices in other arrangements in accordance with the invention. Thus, the elements may comprise liquid crystal devices. Alternatively the display means may comprise a cathode ray tube and the display elements comprise portions of the screen of the cathode ray tube. CLAIMS
1. A digital time switching arrangement incorporating electronic memory means in which may be stored a programme of operating times for the arrangement and associated with a display means arranged to display all the operating times of the stored programme simultaneously.
2. A switching arrangement according to Claim 1 wherein the memory means is adapted to store a plurality of programmes of operating times and the display means is arranged to display simultaneously all the stored operating times relating to any selected one programme.
3. A switching arrangement according to Claim 1 or Claim 2 wherein the display provided by the display means is in the form of an array of display elements each of which represents a different time period, each display element being arranged to be operative or not according to whether the associated switching arrangement is required by the stored programme to be operative or not during the time period represented by that element.
4. A switching arrangement according to Claim 3 wherein the time periods represented by the display elements are successive discrete time periods.
5. A switching arrangement according to Claim 3 or Claim 4wherein the display elements are arranged in columns and rows to form a rectangular matrix array, the elements in each column respectively representing corresponding portions of a plurality of discrete time periods, each of which is represented by the elements in a different row.
6. A switching arrangement according to any one of Claims 3 to 5 wherein the display elements are light sources.
7. A switching arrangement according to Claim 6 wherein the light sources are light emitting diodes.
8. A switching arrangement according to Claim 6 wherein the light sources are portions of the screen of a cathode ray tube.
9. A switching arrangement according to any one of Claims 3 to 5 wherein the display elements are liquid crystal display devices.
10. A switching arrangement according to any one of Claims 3 to 9 wherein during each operative period of the switching arrangement the or each corresponding display element is arranged to alternate between its operative and non operative conditions to indicate the operational part of the displayed programme.
11. A switching arrangement substantially as hereinbefore described with reference to the accompanying drawings.
12. A central heating plant controller incorporating a switching arrangement according to any one of the preceding claims arranged to control the times at which the plant is to be switched on and off.
GB08312028A 1982-05-05 1983-05-03 Digital time switching arrangement Expired GB2123175B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08312028A GB2123175B (en) 1982-05-05 1983-05-03 Digital time switching arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8212986 1982-05-05
GB08312028A GB2123175B (en) 1982-05-05 1983-05-03 Digital time switching arrangement

Publications (3)

Publication Number Publication Date
GB8312028D0 GB8312028D0 (en) 1983-06-08
GB2123175A true GB2123175A (en) 1984-01-25
GB2123175B GB2123175B (en) 1985-09-04

Family

ID=26282738

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08312028A Expired GB2123175B (en) 1982-05-05 1983-05-03 Digital time switching arrangement

Country Status (1)

Country Link
GB (1) GB2123175B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH656507GA3 (en) * 1984-01-25 1986-07-15 Digital timing arrangement
EP0503265A1 (en) * 1991-02-04 1992-09-16 Joh. Vaillant GmbH u. Co. Input device for a programmable heating controller

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2009963A (en) * 1977-11-22 1979-06-20 Diehl Gmbh & Co A time switch system having a modular construction
GB1560889A (en) * 1975-09-17 1980-02-13 Tokyo Shibaura Electric Co Integrated circuit channel data memory for a programmable television receifer
GB2054908A (en) * 1979-07-18 1981-02-18 Vedette Horlogerie Time switch with microcomputer or microprocessor
GB2091913A (en) * 1981-01-23 1982-08-04 Randall Electronics Ltd Timed control of central heating system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1560889A (en) * 1975-09-17 1980-02-13 Tokyo Shibaura Electric Co Integrated circuit channel data memory for a programmable television receifer
GB2009963A (en) * 1977-11-22 1979-06-20 Diehl Gmbh & Co A time switch system having a modular construction
GB2054908A (en) * 1979-07-18 1981-02-18 Vedette Horlogerie Time switch with microcomputer or microprocessor
GB2091913A (en) * 1981-01-23 1982-08-04 Randall Electronics Ltd Timed control of central heating system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH656507GA3 (en) * 1984-01-25 1986-07-15 Digital timing arrangement
EP0503265A1 (en) * 1991-02-04 1992-09-16 Joh. Vaillant GmbH u. Co. Input device for a programmable heating controller

Also Published As

Publication number Publication date
GB8312028D0 (en) 1983-06-08
GB2123175B (en) 1985-09-04

Similar Documents

Publication Publication Date Title
ES2010837A6 (en) Irrigation controller with selector means for displaying selected groups of parameter values.
US4581612A (en) Display with matrix array of elements
EP0720077A2 (en) Programmable thermostat with graphical and numerical temperature display
DE69020036T2 (en) Control circuit for a matrix display device with liquid crystals.
DE69021027T2 (en) Control device for a liquid crystal display device.
UA64762C2 (en) Appliance for heater control
GB2096799A (en) Defrost control system and display panel
DE3583185D1 (en) CONTROL DEVICE FOR A LIQUID CRYSTAL COLOR DISPLAY DEVICE.
DE69508443T2 (en) INTEGRATED ANALOGICAL SOURCE CONTROL CIRCUIT FOR A LIQUID CRYSTAL DISPLAY WITH ACTIVE MATRIX
GB2123175A (en) Digital time switching arrangement
GB2054908A (en) Time switch with microcomputer or microprocessor
EP0768636B1 (en) Multiplexed character display and method for displaying highly dynamic events
CN109620661B (en) Combined method and device for displaying clock and training eyesight
US5984500A (en) Remote controller
DE3106804A1 (en) Device for permitting fuel to be saved at traffic light systems
KR880006638A (en) Flat Panel Display
JPH049996A (en) Electroluminescence display device
EP0057970A3 (en) Control systems including control panels
US4392131A (en) Integratable activation module for passive electrooptical displays
KR20010034715A (en) Blacklight control for a display device
EP3259150B1 (en) Operating console in a motor vehicle
EP0102373B1 (en) Step sequence control apparatus
GB2146794A (en) Central heating/hot water programmer
JPH0650002Y2 (en) Program pattern display device
GB2104254A (en) Electronic timing devices

Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20030502