Method and control system for controlling apparatus

• US 4,365,289 A
• Filed: 02/04/1980
• Issued: 12/21/1982
• Est. Priority Date: 02/04/1980
• Status: Expired due to Term

• Current Assignee: Digital Appliance Controls Limited (Emerson Electric Company)
• Original Assignee: Emhart Industries, Inc. (Stanley Black & Decker, Inc.)
• Inventors: Small, James E., David, Mark E.
• Primary Examiner(s): Ruggiero, Joseph F.
• Application Number:
  US06/118,470
• Time in Patent Office: 1,051 Days
• Field of Search: 364/104, 364/107, 364/120, 364/400, 364/140-147, 364/188, 364/189, 307/141, 307/141.4, 307/141.8, 307/41, 307/293, 307/38, 307/115, 340/309.1, 340/309.4, 134/570, 134/580, 68/12 R, 219/494, 219/497, 219/498, 219/501, 219/506, 219/489, 219/492, 328/34, 328/130
• US Class Current: 340/309.8
• CPC Class Codes: G05B 19/102 for input of programme steps, i.e. setting up sequence

Abstract

A method and control system for controlling an apparatus having at least one machine function and a cycle of operation associated therewith provides a central control element for controlling the function, an input for selecting one of a plurality of fixed periods for causing the control element to activate the function for a cycle of operation in response to the selected period, a device for determining a variable period independent of the fixed periods, and an input for the variably determined period into the control element, the control element having information stored therein, which information includes the fixed periods and an instruction repertoire for causing the control element to control the machine function in response to either one of the fixed periods or the variably determined period.

Claims

1. A control system for an apparatus having at least one machine function and a cycle of operation associated therewith, comprising:

a central control element for controlling said machine function,

first means for inputting a selection of one of a plurality of fixed periods to said central control element for causing said control element to activate said machine function for said cycle of operation in response to said one period;

manually operable switch means for determining a variable period for said cycle of operation independently of said central control element; and

second means for inputting said variable period from said means for determining and into said central control element,

said central control element having information stored therein, said information including said plurality of fixed periods for selection through said first means for inputting and an instruction repertoire for causing said control element to control said machine function in response to either one of said fixed periods or said variable period.

2. The control system of claim 1, further comprising third means for inputting a selection for causing said control element to control said machine function in response to the variable period determined by said means for determining.

3. The control system of claim 2, wherein said instruction repertoire includes first instruction means for causing said control element to be responsive to said third means for inputting.

4. The control system of claim 3, further comprising fourth means for inputting an indication that a variable period has been determined by said means for determining.

5. The control system of claim 4, wherein said instruction repertoire includes second instruction means for causing said control element to be responsive to said fourth means for inputting and said second means for inputting and to control said machine function in response to the period determined by said means for determining.

6. The control system of claim 1, further comprising means for enabling said central control element to control said machine function by controlling the operating power applied to said apparatus.

7. The control system of claim 6, further comprising means for enabling said control element to vary the amount of operating power applied to said apparatus.

8. The control system of claim 7, wherein said instruction repertoire includes third instruction means for enabling said control element to vary the amount of power applied to said apparatus during the operation of said machine function.

9. The control system of claim 1, wherein said control element is a computer and said instruction repertoire is a computer program.

10. The control system of claim 9, wherein said computer is a microcomputer having at least a plurality of output terminals and at least a multiplicity of input terminals, further wherein first said means for inputting includes a multiplicity of momentarily operable switches coupled between said microcomputer output terminals and said microcomputer input terminals, and still further wherein said manually operable switch means includes rotary switch means coupled between said microcomputer output lines and said microcomputer input lines for coding an operator selection for a variable period as a binary coded decimal for input to said microcomputer.

11. A control system for an apparatus having at least one machine function and a cycle of operation associated therewith, comprising:

a central control element including means for storing information for controlling said machine function, said information including an instruction repertoire and a plurality of selectable fixed periods for said cycle of operation;

first means for inputting a selection of one of said plurality of periods to said central control element for causing said control element to activate said machine function for said cycle of operation in response to said one period;

manually operable switch means for determining a variable period for said cycle of operation independently of said central control element; and

second means for inputting said variable period from said means for determining and into said central control element whereby said apparatus may be activated by said central control element for a cycle of operation in response to either one of said plurality of fixed periods or an independently variable period.

12. The control system of claim 11, further comprising means for enabling said central control element to control said machine function by controlling the operating power applied to said apparatus.

13. The control system of claim 11, further comprising means for enabling said central control element to vary the amount of operating power applied to said apparatus.

14. The control system of claim 11, wherein said manually operable switch means includes rotary switch means coupled to said central control element for coding an operator selection for a variable period as a binary coded decimal for input to said central control element.

15. The control system of claim 11, further comprising display means operable during said cycle of operation for displaying the amount of the period remaining for said cycle of operation.

16. The control system of claim 11, wherein said central control element includes a microcomputer having at least a plurality of output terminals and at least a multiplicity of input terminals, further wherein first said means for inputting includes a multiplicity of momentarily operable switches coupled between said microcomputer output terminals and said microcomputer input terminals, and still further wherein said rotary switch means is also coupled between said microcomputer output terminals and said microcomputer input terminals.

17. A method for controlling an apparatus by a control system including a control element having information stored therein, said information including an instruction repertoire for causing said control element to operate said apparatus either in response to one of a plurality of fixed periods also stored as said information or a variable period determined independently from said control element by a manually operable switch means, said method comprising:

determining whether one of said plurality of fixed periods or said variable period has been selected for the operation of said apparatus;

recording the period selected either from said stored information if one of said plurality of fixed periods or from said manually operable switch means; and

operating said apparatus for said recorded period.

18. The method of claim 17, further comprising causing said control system to be deactivated in the event that a selection of a period for operation of said apparatus is not made within a predetermined amount of time.

19. The method of claim 17, wherein said determining includes recording an indication that said period to be recorded for said operating of said apparatus is to be recorded from said manually operable switch means, and further wherein said recording of said period from said manually operable switch means is caused by signalling said control element that said period to be recorded has been determined by said manually operable switch means.

20. The method of claim 17, further comprising recording a signal for making variable the amount of power with which said control element operates said apparatus.

21. The method of claim 20, further comprising deriving a level for the amount of power with which said control element operates said apparatus in response to means for inputting a variable power selection.