CN101369138A - Reserved heat preservation control method for electronic device - Google Patents

Abstract

The invention relates to a control method for scheduled heat preservation of an electronic device, comprising the following steps: starting operations by adopting a heat preservation and heating pattern after reaching the scheduled time point; setting the schedule time and judging whether the scheduled countdown is finished or not; if no, re-judging the countdown; if yes, detecting whether the delta-t time is reached; if no, re-detecting whether the delta-t time is reached; detecting whether the temperature is lower than Tset; if yes, heating a heating device at power P1; detecting whether the holding time reaches tf; if no, reducing the power of the heating device to P2 or stopping the heating and then detecting whether the holding time reaches tf or not; if no, re-detecting whether the delta t time is reached; if yes, shutting down the device.

Description

The control method of the reserved heat preservation of electronic installation

Technical field

The present invention relates to a kind of control method of reserved heat preservation of electronic installation.

Background technology

CN200720102560.3 announced a kind of can timing power supply and the electric cooker of outage automatically, technical matters to be solved provide a kind of can timing power supply and the electric cooker of outage automatically.Its technical scheme is: it is made of pot cover, pot body, steamed rice insulation switch, insulation pilot lamp, steamed rice pilot lamp, electric hot tray, preheating table, temperature control resistance, magnet steel, power lead, electric cooker also is equipped with the power supply timer switch, one end of power supply timer switch is connected with the power supply line, and the other end is connected with steamed rice insulation switch feeder ear.The utility model has been realized timing automatic opening and closing electric cooker power supply function by installation power supply timer switch and breaker timing device switch on ordinary electric rice cooker, solved ordinary electric rice cooker do not have reservation regularly steam, cook and steam, cook finish after powered-down problem automatically, its weak point is: reservation, the heat insulation function of described electric pressure cooking saucepan separate, the user can't allow food insulation after the time period of expectation heat not enough hommization.

Summary of the invention

The objective of the invention is to overcome above-mentioned weak point of the prior art, a kind of reservation function and heat insulation function of comprising is provided, the user can set the time that will preengage by input equipments such as buttons, device began the time countdown with reservation after reservation was finished, after the reservation countdown finished, device was automatically brought to heat insulation function; Under the keeping warm mode, the temperature of thermometric device △ t measurement at set intervals heating object is when temperature is lower than T _SetThe time, heater element begins with power P ₁Heating is when temperature is higher than T _SetHeater element falls power to P later on ₂Work or stop the heating, thereby make heating object maintain T _SetNear, to realize heat insulation function, as the temperature retention time t of needs _fArrive the control method of the reserved heat preservation of the electronic installation that shuts down the back.

Purpose of the present invention can reach by following measure:

The control method of this electronic installation reserved heat preservation, described electronic installation comprise heater element, thermometric device, and its special character is, may further comprise the steps:

(1) begins after user's subscription time point arrives with insulation heating mode work (step 101);

(2) set the time of preengaging by input equipment, after reservation was finished, beginning was with the time countdown (step 102) of reservation;

(3) judge whether the reservation countdown finishes (step 103);

(4) if whether the judged result of step 103 for not, then rejudges the reservation countdown and finishes;

(5), detect the △ t time to denying (step 104) if the judged result of step 103 for being, then is automatically brought to heat insulation function;

(6) if the testing result of step 104 for not, then detects the △ t time again to denying;

(7) temperature of thermometric device △ t measurement at set intervals heating object, whether detected temperatures is lower than Tset (step 105);

(8) if the testing result of step 105 is for being that then, heater element begins to heat (step 106) with power P 1;

(9) detect temperature retention time and whether arrive t _f(step 107);

(10) if the testing result of step 105 is that heater element does not fall power to P ₂Or stop to change step 107 over to after the heating (step 108);

(11) if the testing result of step 107 for not, is then returned step 104;

(12) shutdown (step 109).

The present invention has the following advantages:

1, the reservation of electronic installation, heat insulation function are integrated, make the user can allow food in the insulation of the time period of expectation, heating in cooking process, have hommization.

Description of drawings

Fig. 1 is a process flow diagram of the present invention.

Fig. 2 is the coordinate curve map of temperature and time corresponding relation of the present invention.

Embodiment

The present invention is further detailed in conjunction with the accompanying drawings below:

See also shown in Figure 1ly, comprise may further comprise the steps the control method of the electronic installation reserved heat preservation of heater element, thermometric device:

(1) begins after user's subscription time point arrives with insulation heating mode work (step 101);

(2) set the time of preengaging by input equipment, after reservation was finished, beginning was with the time countdown (step 102) of reservation;

(3) judge whether the reservation countdown finishes (step 103);

(4) if whether the judged result of step 103 for not, then rejudges the reservation countdown and finishes;

(5), detect the △ t time to denying (step 104) if the judged result of step 103 for being, then is automatically brought to heat insulation function;

(6) if the testing result of step 104 for not, then detects the △ t time again to denying;

(7) temperature of thermometric device △ t measurement at set intervals heating object, whether detected temperatures is lower than Tset (step 105);

(8) if the testing result of step 105 is for being that then, heater element begins to heat (step 106) with power P 1;

(9) detect temperature retention time and whether arrive t _f(step 107);

(10) if the testing result of step 105 is that heater element does not fall power to P ₂Or stop to change step 107 over to after the heating (step 108);

(11) if the testing result of step 107 for not, is then returned step 104;

(12) shutdown (step 109).

The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.

Claims (1)

1, a kind of control method of electronic installation reserved heat preservation, described electronic installation comprise heater element, thermometric device, it is characterized in that, may further comprise the steps:

(1) begins after user's subscription time point arrives with insulation heating mode work (step 101);

(2) set the time of preengaging by input equipment, after reservation was finished, beginning was with the time countdown (step 102) of reservation;

(3) judge whether the reservation countdown finishes (step 103);

(4) if whether the judged result of step 103 for not, then rejudges the reservation countdown and finishes;

(5), detect the △ t time to denying (step 104) if the judged result of step 103 for being, then is automatically brought to heat insulation function;

(6) if the testing result of step 104 for not, then detects the △ t time again to denying;

(7) temperature of thermometric device △ t measurement at set intervals heating object, whether detected temperatures is lower than Tset (step 105);

(8) if the testing result of step 105 is for being that then heater element begins with power P ₁Heating (step 106);

(9) detect temperature retention time and whether arrive t _f(step 107);

(10) if the testing result of step 105 is that heater element does not fall power to P ₂Or stop to change step 107 over to after the heating (step 108);

(11) if the testing result of step 107 for not, is then returned step 104;

(12) shutdown (step 109).

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