Summary of the invention
Use toaster to the user, want the cured effect that reaches same, must readjust toaster, the problem of setting-up time and gear thereof, the present invention proposes following technical scheme:
The control method of a kind of toaster rusk scalding time memory:
1) user is provided with heat time heating time according to the needs of self, gives concrete time value Td for each gear;
2) (value of B value on different machine types is different to calculate compensating proportion B by the set temperature sensor of toaster according to the actual temperature value of detected toaster; Mainly by factor decisions such as the power of machine and heat radiations; This example is got), during smaller or equal to 35 ℃, compensating proportion B=0; In the time of 35 ℃<temperature≤45 ℃, compensating proportion B=15% is from 55 ℃-105 ℃; 10 ℃ of every increases; Compensating proportion B then increases progressively 5% since 25%, and up to 50%, the high more compensation of the temperature value of the actual temperature of toaster is many more; Perhaps through the set microprocessor of toaster to toaster heat time heating time of last time; Actual temperature and calculate with the interval time of this heating, the time value Td's that the heat time heating time after the compensation, Tb equaled to be provided with (1-B) is long-pending, confirms Tb heat time heating time after the compensation thus;
3) heater when toaster is need not carry out the compensation of time by cold start, and promptly compensating proportion is 0 o'clock, the already heated time T e of Ts=heat time heating time that this moment is actual;
4) heater when toaster is in the time of need carrying out the compensation of time by hot starting, hot start, then actual Ts=Te heat time heating time (1+B); So just obtained actual heat time heating time of the Ts of any time;
5) actual heat time heating time of the Ts that confirms of the control system memory stores above-mentioned steps through toaster 3 and step 4 realizes the record to any scalding time, when the user reuses, can directly call this heat time heating time, reaches identical rusk scalding effect.
The control system storer of described toaster is the control circuit of the single-chip microcomputer of single-chip microcomputer, memory chip or band memory.
The storer of control system storage actual heat time heating time of the Ts of described toaster is single-chip microcomputer and memory chip 24C02.
The control circuit of the single-chip microcomputer of the band memory of the control system of described toaster is mainly by power circuit, rectification circuit, filtering circuit, ceramic resonator circuit, touch-switch cancellation; Memory, executive circuit, gear testing circuit and temperature sensing circuit are formed.
The present invention utilizes the control circuit of the single-chip microcomputer of single-chip microcomputer, memory chip or band memory, adopts the computing method of timely compensation time, realizes the record to the scalding time.Calculate the occurrence of compensating proportion B according to the form of confirming compensating proportion B according to the actual temperature value of detected toaster by the set temperature sensor of toaster.For example toast for the first time initial temperature=25 ℃, through tabling look-up temperature≤35; Compensating proportion B=0; For example toast for the second time initial temperature=60 ℃, through tabling look-up 55<temperature≤65; Compensating proportion B=35% then.
The invention solves the user and remember the stoving time requirement of the baking bread of oneself liking, when the user need toast bread, only need just can bake the scalding color bread of oneself liking next time by next operating key according to the original effect of confirming of user.
Embodiment
Below in conjunction with accompanying drawing the present invention is further specified:
The control method of a kind of toaster rusk scalding time memory:
1) user is provided with heat time heating time according to the needs of self, gives concrete time value Td for each gear;
2) calculate compensating proportion B by the set temperature sensor of toaster according to the actual temperature value of detected toaster, during smaller or equal to 35 ℃, compensating proportion B=0; In the time of 35 ℃<temperature≤45 ℃, compensating proportion B=15% is from 55 ℃-105 ℃; 10 ℃ of every increases; Compensating proportion B then increases progressively 5% since 25%, and up to 50%, the high more compensation of the temperature value of the actual temperature of toaster is many more; Perhaps the microprocessor through the toaster control system is to toaster heat time heating time of last time; Actual temperature and calculate with the interval time of this heating, the time value Td's that the heat time heating time after the compensation, Tb equaled to be provided with (1-B) is long-pending, confirms Tb heat time heating time after the compensation thus;
3) heater when toaster is need not carry out the compensation of time by cold start, and promptly compensating proportion is 0 o'clock, the already heated time T e of Ts=heat time heating time that this moment is actual;
4) heater when toaster is in the time of need carrying out the compensation of time by hot starting, hot start, then actual Ts=Te heat time heating time (1+B); So just obtained actual heat time heating time of the Ts of any time;
5) actual heat time heating time of the Ts that confirms of the control system memory stores above-mentioned steps through toaster 3 and step 4; Realization is to the record of any scalding time; When the user reuses, can directly call this of data heat time heating time, reach identical rusk scalding effect.
The control system storer of described toaster is the control circuit of the single-chip microcomputer of single-chip microcomputer, memory chip or band memory.
The storer of control system storage actual heat time heating time of the Ts of described toaster is single-chip microcomputer and memory chip 24C02.
The control circuit of the single-chip microcomputer of the band memory of the control system of described toaster is mainly by power circuit, rectification circuit, filtering circuit, ceramic resonator circuit, touch-switch cancellation; Memory, executive circuit, gear testing circuit and temperature sensing circuit are formed.
Flow process among Fig. 1 is described below: when pressing toaster flap hand, the user begins heating, and does the control system of toaster begin to detect the execution button and is pressed? Be pressed if carry out button, then microprocessor is transferred Ts memory time; Be not pressed if carry out button, the gear time T d that sets of microprocessor calling and obtaining user then through Tb=Ts (1-B) or Tb=Td (1-B), calculates Tb heat time heating time after the compensation, and in 1 second of every time-delay, heat time heating time, Te increased by 1.Microprocessor calculates real-time Ts heat time heating time according to Ts=Te (1+B); Judge the memory button and whether press,, then real-time Ts heat time heating time is deposited in the memory chip of control system if the memory button is pressed; If the memory button is not pressed; Whether the cancellation button of then judging toaster is pressed, if be pressed, then the flap hand of toaster is upspring and finished heating; Otherwise, if the cancel key of toaster is not pressed, then microprocessor judges heat time heating time Te with calculate compensation after heat time heating time Tb greater than or equate? Greater than or when equating then flap hand upspring and finish heating; Is then turning back to detection execution button when unequal pressed? Carry out the program of back.
When the flap hand of pressing toaster as the user began to heat, the microprocessor of the control system of toaster read the state of button, when button is pressed when carrying out function corresponding; Corresponding LED1; LED2, LED3 works simultaneously, by microprocessor output control its bright with do not work.LED1, the corresponding respectively indication cancellation of LED2, LED3, three buttons are carried out in memory; The resistance of potentiometer VR changes when adjustment, and the voltage of potentiometer bleeder circuit changes, and this voltage signal is transferred to the AD detection port PB0 of microprocessor.Microprocessor calculates the position of the actual-gear of toaster through detectable voltage signals; Temperature sensor NTC also changes with its resistance value of variation of temperature, and makes that by R18, the bleeder circuit voltage that NTC forms also changes thereupon, and this voltage signal is transferred to the AD detection port PB1 of microprocessor through R19.Microprocessor calculates the actual temperature of toaster well heater through the variation of detectable voltage signals, and needs the actual heat time heating time of compensation.
Shown in Figure 2 for confirming the form of compensating proportion B, calculate the occurrence of compensating proportion B according to the form of confirming compensating proportion B according to the actual temperature value of detected toaster by the set temperature sensor of toaster.For example toast for the first time initial temperature=25 ℃, through tabling look-up, temperature≤35 ℃; Compensating proportion B=0; For example toast for the second time initial temperature=60 ℃, through tabling look-up 55 ℃<temperature≤65 ℃; Compensating proportion B=35% then.
Shown in Figure 3 is the schematic diagram of the employed control circuit of control method of toaster rusk scalding of the present invention time memory, is summarized as follows:
Power unit comprises in the circuit: diode D1, capacitor C 1, EC1, EC2, C3, resistance R 2, voltage stabilizing IC, U1 78L05 are that microprocessor, three-primary color LED lamp, temperature sensing circuit power circuit partly provide the 5V direct supply.
The AC120V power supply is that AC 10V is that entire circuit provides power supply through tap through the heating wire dividing potential drop, and AC 10V is through diode D1 rectification; Capacitor C 1, EC1 filtering; Through voltage stabilizing IC, U1 78L05 voltage stabilizing is DC 5V, and through electric capacity EC2, C3 filtering produces stable DC 5V power supply.
Microprocessor portion comprises in the circuit: reset circuit and resistance R 25 that resistance R 4, R5, capacitor C 4, C5 form, the oscillatory circuit that ceramic resonator XL forms.
Pilot lamp partly comprises in the circuit: LED lamp LED1, LED2, LED3 and current-limiting resistance R6, R7, R8.Through being connected with I/O mouth PA2, PA4, the PA5 of microprocessor respectively, by microprocessor output signal controlling its bright with do not work, the corresponding respectively indication cancellation of LED1, LED2, LED3, memory, carry out the button of three toasters.
Button partly comprises in the circuit: touch-switch cancellation, memory, execution and current-limiting resistance R9, R10, R11.
Through being connected with I/O mouth PA6, PA4, the PA1 of microprocessor respectively; Read the state of button by microprocessor input; Touch-switch cancellation, memory, execution say all do not have directly to connect from circuit; They briefly are that software has been realized depositing the time by memory button through software contacts, get the time by execute key.
When the button of toaster was pressed the execution function corresponding, the LED1 corresponding with it, LED2, LED3 then worked simultaneously.
The gear test section comprises in the circuit: capacitor C 7, resistance R 17 and potentiometer VR.Potentiometer VR its resistance value when adjustment changes, and the voltage of potentiometer bleeder circuit is also corresponding to change, and this voltage signal is transferred to the AD detection port PB0 of microprocessor through R17.
Microprocessor calculates the position of actual-gear through the variation of detectable voltage signals.
Temperature detection part comprises in the circuit: capacitor C 8, resistance R 18, R19, temperature sensor NTC.Temperature sensor NTC changes with its resistance of temperature variation, and makes the bleeder circuit voltage of being made up of R18, NTC also change, and this voltage signal is transferred to the AD detection port PB1 of microprocessor through R19.
Microprocessor calculates actual temperature through the variable quantity of detectable voltage signals.
The practical implementation process instance:
Td: the time of setting, the heat time heating time that the user is provided with, i.e. the gear time, potentiometer VR resistance when adjustment changes, potentiometer bleeder circuit change in voltage, and this voltage signal is transferred to the AD detection port PB0 of microprocessor through R17.Microprocessor calculates the position of actual-gear through detectable voltage signals.
Td: the gear time, present embodiment is provided with 6 gears and is respectively: 1 grade-80 seconds; 2 grades-100 seconds; 3 grades-120 seconds; 4 grades-150 seconds; 5 grades-180 seconds; 6 grades-220 seconds;
Tb: the time after the compensation: the time T b=Td that the time after the compensation equals to be provided with (1-B);
Compensating proportion B: compensating proportion is calculated according to the form of the temperature value that measures according to the definite compensating proportion B shown in the accompanying drawing 2 by temperature sensor, and the high more compensation of temperature is many more, and this routine compensating proportion is 0 to 50%.Compensating proportion also can be through microprocessor to calculating interval time heat time heating time and twice heating of toaster thereof.
Te: already heated time: be the heat time heating time of heater.
Ts: real-time time: be the time of actual motion, when compensating proportion is 0, that is to say that heater is during by cold start, need not carry out compensation Ts=Te this moment of time;
When compensating proportion is not 0, that is to say that heater is by hot starting, hot start, need carry out compensation this moment of time, Ts=Te (1+B); So just obtained the real time of any time, we store this time through single-chip microcomputer and a memory chip 24C02, when the user need use, can directly call.So just realized record to any scalding time.
For example the user selected 5 grades-180 seconds, begin from cold conditions, cold conditions begins to be meant that toaster begins from room temperature, the temperature of movement and heating wire equals room temperature, this moment, to have selected 5 grades of-180 second then actual heat time heating times also be 180 seconds.
Present embodiment toasts initial temperature=25 ℃ for the first time, through tabling look-up, and temperature≤35 ℃; Compensating proportion B=0; This example is toasted for the second time initial temperature=60 ℃, through tabling look-up 55 ℃<temperature≤65 ℃; Compensating proportion B=35%;
After 180 seconds for the first time finish, when the user begins to heat for the second time, gear is constant still be 5 grades-180 seconds; Be hot beginning this moment; Hotly begin to be meant that toaster is heating once more in the short at interval time, the temperature of movement and heating wire all is higher than room temperature, selected at this moment 5 grades-180 seconds; During then actual the heating; Just actual heat time heating time should be less than 180 seconds should to deduct the make-up time, compensating proportion B=35%, the time T b=180 that the time after the compensation equals to be provided with (1-35%)=117 second.
The user has been baked to the scalding color of hope if find bread in heating process, utilize manually to have stopped this heating process.In the time of such as 100 seconds, supress memory button and manually stopped this heating process by cancel key.
Should write time T s=100 (1+35%)=135 second of memory chip this moment.When the user used next time, as long as no matter be to begin or hotly begin to press execute key from cold conditions, microprocessor will take out the time T s that deposits memory chip in, thereby has realized the unanimity to scalding.