CN1140577A

CN1140577A - Domestic electric appliances and heating cooking device

Info

Publication number: CN1140577A
Application number: CN96108981A
Authority: CN
Inventors: 细系强志
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 1995-04-27
Filing date: 1996-04-27
Publication date: 1997-01-22
Anticipated expiration: 2016-04-27
Also published as: CN1103574C; KR100214751B1; JPH08305448A; KR960040088A

Abstract

To provide the household electrical appliance and heating cooker in which the contents of a control program can be easily changed even after the preparation of a control program storage means. A microcomputer is constituted so as to register a change object address of the control program stored in a ROM as a mask pattern to a register for change and to transfer a program for change stored in an EEPROM to a RAM while a switch for change is operated but to execute the program for change transferred to the RAM and to change a constant for deciding the time of cooking due to a magnetron corresponding to the detect signal of a gas sensor when the address of a program counter is matched with the address '5000H' registered on the register for change during the execution of the control program.

Description

Household electrical appliance and heating device

The present invention relates to household electrical appliance and heating device by the control of microcomputer equal controller.

In order to make the shielding ROM (hereinafter referred to as ROM) of the control program of storing microcomputer (hereinafter referred to as microcomputer), need high cost, and need to begin the time of one to two month usually from order.Therefore, in order to change the content of Manufactured ROM,,, work out revision hardly once more so long as not significantly change if consider its cost.

Yet, particularly cook in the micro-wave oven wide in variety at heating device, for example ordering beginning from ROM during the product delivery, for the completeness that improves product continues to carry out product development.In addition, even in the product after delivery, the shortcoming of failing to predict before also tending to find to deliver.Therefore, can change the such situation of a part of content of having submitted the control program among the ROM that orders or finished order to.

In order to deal with such situation, existing structure is such, promptly when ROM orders, the part that might change in control program is used subprogram as changing in advance, time spent assigns change on the specific input port of microcomputer with change-over switch, taking place under the situation that is necessary to change then, if said change-over switch is made as closure state, microcomputer is carried out change subprogram (change program).

Yet in such prior art, the just predictable part before ROM makes that can change also can't be handled even in addition be necessary change.In addition, because the change that not necessarily is necessary is enrolled among the ROM redundantly with subprogram,, be necessary to be designed to big capacity so the possibility of ROM change has increased.In addition, only be necessary to have the necessary problem of adorning area in fact that is provided with redundantly like this on the substrate by with the local corresponding number of change change-over switch being set and assigning on the inlet at microcomputer.

The present invention is exactly for solving top problem, its objective is provides a kind of household electrical appliance heating device, it there is no need that unnecessary capacity is set and unnecessary real dress area is set on substrate in the control program storage device, even after having made the control program storage device, the also content of Change Control Procedure easily.

To achieve these goals, household electrical appliance as claimed in claim 1, it is controlled by control device, it is characterized in that comprising: storage is by the control program storage device of the control program of above-mentioned control device execution; The temporary storage device that in above-mentioned control program is handled, uses as the temporary storage aera; The Nonvolatile memory devices that storage alters the procedure; The change operating means; With under the situation of operating means, above-mentioned control device is registered in change to the change object address of control program with in the register, transfers to temporary storage device being stored in altering the procedure in the Nonvolatile memory devices simultaneously in the operation change; Said address and registered under changing with the corresponding to situation of change object address in the register carries out having transferred to altering the procedure of above-mentioned temporary storage device in control program is carried out.

In this case, preferably also be provided with the sensor of control usefulness, Nonvolatile memory devices is made of EEPROM, and the correction value (claim 2) of Correction and Control is carried out in said EEPROM storage according to the detection signal of the sensor.

Heating device as claimed in claim 3, it have the indoor food of cooking heater, detect the gas sensor of the concentration of the gas in cooking room, produce, according to the detection signal control heater of this gas sensor and the control device of cooking, it is characterized in that, it comprises: storage is by the control program storage device of the control program of control device execution, the temporary storage device that in control program is handled, uses as the temporary storage aera, the Nonvolatile memory devices that alters the procedure of storage cooking conditions, the change operating means; With under the situation of operating means, above-mentioned control device is registered in change to the change object address of control program with in the register, transfers to temporary storage device being stored in altering the procedure in the Nonvolatile memory devices simultaneously in the operation change; Said address and registered under changing with the corresponding to situation of change object address in the register carries out having transferred to altering the procedure of temporary storage device in control program is carried out.

Heating device as claimed in claim 4, it have the indoor food of cooking heater, detect the temperature sensor of above-mentioned cooking indoor temperature, according to the cook temperature of the detection signal control heater of this temperature sensor and the control device of time, it is characterized in that, it comprises: storage is by the control program storage device of the control program of control device execution, the temporary storage device that in control program is handled, uses as the temporary storage aera, storage cook temperature and the Nonvolatile memory devices that alters the procedure of time, the change operating means; With under the situation of operating means, control device is registered in change to the change object address of control program with in the register, transfers to temporary storage device being stored in altering the procedure in the Nonvolatile memory devices simultaneously in the operation change; Said address and registered under changing with the corresponding to situation of change object address in the register carries out having transferred to altering the procedure of temporary storage device in control program is carried out.

In this case, its structure preferably: also be provided with the weight sensor that detects food weight; Constitute heater by magnetron; Adjust initial value the zero point that constitutes Nonvolatile memory devices and store weight sensor simultaneously by EEPROM; Control device carries out adjusting the zero point of weight sensor, carrying out the cooking (claim 5) according to the detection signal of said weight sensor simultaneously.

Household electrical appliance according to claim 1, use under the situation of operating means in the operation change, control device is registered in change to the change object address of control program with in the register, transfers to temporary storage device being stored in altering the procedure in the Nonvolatile memory devices simultaneously; Said address and registered under changing in control program is carried out with the corresponding to situation of change object address in the register, transferred to altering the procedure of temporary storage device owing to carry out, even so after the control program storage device is made, also can easily carry out the change of control program.

In this case, utilize EEPROM to constitute Nonvolatile memory devices, said EEPROM stores the correction value of carrying out Correction and Control according to the detection signal of the sensor of control usefulness, can correctly control (claim 2) according to correction value like this.

According to claim 3 or 4 described heating devices, use under the situation of operating means in the operation change, control device is registered in change to the change object address of control program with in the register, simultaneously the cooking conditions or the altering the procedure of cook temperature and time that are stored in the Nonvolatile memory devices is transferred to temporary storage device; Said address and registered under changing in control program is carried out with the corresponding to situation of change object address in the register, owing to carry out and transferred to altering the procedure of temporary storage device, so can easily carry out the change of cooking conditions or cook temperature and time.

In this case, constitute heater by magnetron; Nonvolatile memory devices is made of EEPROM and is adjusted initial value at zero point of storing the weight sensor that detects food weight; Control device carries out the zero point of weight sensor and adjusts and cook according to the detection signal execution of said weight sensor; Because such structure, so, can correctly cook (claim 5) according to the detection signal of the weight sensor of adjusting zero point.

Fig. 1 is the block diagram of the electric formation of expression one embodiment of the invention;

Fig. 2 is the electric formation of part of function is carried out in the relevant change of expression with program a block diagram;

Fig. 3 is the flow chart of control program;

Fig. 4 is the figure of the control characteristic of expression when cooking rice and dish;

Fig. 5 represents the value of constant alpha and β, (a) for before changing, (b) for after changing;

Fig. 6 is milk and wine and the similar figure of Fig. 4;

Fig. 7 is the figure similar with Fig. 5;

Fig. 8 is the flow chart of the initial treatment when connecting power supply;

Fig. 9 is the flow chart that alters the procedure;

Figure 10 is address figure.

Embodiment when the present invention is applicable to heating device (for example micro-wave oven) as household electrical appliance is described with reference to the accompanying drawings.In electric formation shown in Figure 1, has the RAM3 (temporary storage device) that control program is stored its inner ROM (control program storage device) 2 and used for the temporary storage aera as the microcomputer 1 of control device.In addition, microcomputer 1 is connected with EEPROM4 as the serial communication mode of Nonvolatile memory devices in the mode that can read and write by address and data/address bus and control signal wire.

The output that on the input of microcomputer 1, is connecting weight sensor 5, with acceptance response in the pulse signal that is placed on the food weight on the not shown rotating disk.In addition, on the input of microcomputer 1, connecting the output of gas sensor 6, to accept detection signal; The output that is also connecting door switch 7 simultaneously is with the output signal of acceptance response in the high or low level of the open and-shut mode of cooking room door (not shown).

Gas sensor 6 is located in the cooking room in the exhaust channel of outside, its detect gas for example steam concentration and export the water vapor concentration detection that low level is high more more letter.Number (electronics).

In addition, on the input of microcomputer 1, the output that is connecting enter key 8 rectangularly, with selection signal and the cooking commencing signal of acceptance response in cooking kind, enter key 8 is constituted by specifying as the cooking options button of the various food of cooking object and the beginning key (not shown) that begins to cook; Also connecting with the output that manually carries out the rotary encoder 9 of time set the pulse signal of exporting in its rotation with acceptance response simultaneously.In addition, on the input of microcomputer 1, connecting change switch 10, with the effective or invalid signal of alternately accepting high or low level in response to programing change as the alter operation device that constitutes by cross-over connection terminal or joint switch.

The output that is connecting timer 11 on this external microcomputer 1 interrupting input end, and accept regularly interrupt signal at regular intervals; The output that is connecting quartz (controlled) oscillator 12 in addition on the input end of clock of microcomputer 1 is to accept clock signal of system.

The output of microcomputer 1 links to each other with the input of display 13 in addition, so that the dynamic point modulating signal to be provided; Simultaneously by not shown drive circuit with as the magnetron 14 of heater and the input that is provided for cooling off the cooling fan 15 of said magnetron 14 be connected, so that the driving signal to be provided.In addition, the part air-supply that is brought by cooling fan 15 flows in the cooking room.

Fig. 2 represents the part electric formation of the change of relevant microcomputer 1 inside with program execution function with functional-block diagram.Change is that not shown controller and the internal bus 18 of input data bus by microcomputer 1 of modified address register (hereinafter referred to as CORAD) 16 and Correction and Control register (hereinafter referred to as CORCN) 17 couples together with register.In addition, the output data bus of CORAD16 is connected with an input data bus of comparator 19.

In addition, another input data bus of comparator 19 is connected with the output data bus of program counter 20.In addition, the consistent signal output part of comparator 19 is connected with an input of AND circuit 21, and another input of AND circuit 21 is connected with the output of CORCN17.The output of AND circuit 21 is connected with the internal interrupt input of the controller of microcomputer 1, requires signal so that transfer processing to be provided.

The effect of present embodiment is described below with reference to Fig. 3 to Figure 10.Control according to the automatic-cooking of food variety is at first described.Fig. 3 is the flow chart of cooking control content.If beginning key (not shown) in the operation enter key 8 and begin the cooking (cooking beginning), in " the manually cooking? " determining step S1 in, microcomputer 1 judges whether the cooking of being selected by the operation of enter key 8 before the beginning key operation is the manual cooking.In determining step S1, the selection of the enter key by the operator, if any occasion of judging in selection " rice ", " dish ", " milk " or " wine " is a "No", then move on to " posset? " determining step S2.

In determining step S2, the occasion of any is "No" (" milk " or " wine ") in selection " rice " or " dish " if judge, and then moves on to the treatment step S3 that following cooling fan is connected.In treatment step S3, microcomputer 1 offers cooling fan 15 (with reference to Fig. 4 1. constantly) by drive circuit driving signal, move on to " through 15 seconds? " then determining step S4.

In determining step S4, begin to drive before the magnetron 14, drive cooling fan 150 five seconds, and carry out the exhaust (cleaning) of the residual gas of cooking room inside.Residual gas is discharged to the outside by exhaust channel, detects gas concentration by gas sensor 6.Begin to descend the output Vt rising (referring to Fig. 4) of gas sensor 6 by exhaust gas concentration.

If begin through 15 seconds from the driving of cooling fan 15, then move on to the treatment step S5 of following " magnetron connection ", supply with the heating (referring to Fig. 4 constantly 2.) of magnetron 14 by drive circuit driving signal with beginning food, then move on to " T _αTiming begin " treatment step S6, by the timing interruption times of being undertaken by timer 11 is counted, begin following cooking time T _αTiming.Move on to then among the treatment step S7 of " obtaining Vt ".

In treatment step S7, if obtain the output valve Vt of gas sensor 6, then move on to " Vt＞Vmax? " determining step S8 in.In determining step S8, the output valve Vt of the gas sensor 6 that obtains in step S7 and maximum Vmax are compared.The initial value of maximum Vmax is set as zero by initialization.The moment shown in Figure 4 2., the food heating of beginning magnetron 14; Owing to temporarily from food, do not produce steam,, rise and the output valve Vt of gas sensor 6 is dull so descend by the water vapor concentration in the exhaust cooking room of cooling fan 15.

Therefore, between the dull rising stage, Vmax is replaced by the up-to-date output valve of gas sensor 6 at output valve Vt.Promptly in step S8,, then move on to following VmaX ← Vt if judgement Vt＞Vmax is a "Yes" " treatment step S9 in, this moment output valve Vt substitution maximum Vmax upgrade.Among Fig. 3, from the moment shown in Figure 4 2. up to 3. output valve Vt between the rising stage constantly, repeating step S7 to S9.

Then, if 3. the moment will begin to produce steam from food before reaches the maximum of output valve Vt, then water vapor concentration begins to rise, and output valve Vt begins to descend.That is to say, be the output valve Vt 3. time the constantly through the Vmax after 3. constantly, constantly 3. after Vt≤Vmax be judged as "No".In view of the above, move on among the treatment step S10 of " computing (1-α) Vmax ".

In treatment step S10, computing (1-α) Vmax.Here, the constant alpha output valve Vt that represents gas sensor 6 from maximum Vmax decline certain ratio, in order to determine cooking conditions definite value (4. constantly) referring to Fig. 4.Carry out moving on to after the above-mentioned computing " Vt≤(1-α) Vmax? " determining step S11.

In determining step S11; Whether the output valve Vt that judges gas sensor 6 is littler than the value that calculates in step S10 (1-α) Vmax.That is to say, be judged as "No" in 3.-4., move on among the treatment step S12 of " obtaining Vt " and obtain after the output valve Vt, turn back to determining step S11, repeat above-mentioned judgement in output valve Vt moment bigger than (1-α) Vmax.

In step S11, promptly pass through constantly 4. then, then be judged as "Yes", move on to the next one and " obtain T if output valve Vt becomes less than (1-α) VmaX _α" treatment step S13.In treatment step S13, obtain moment of in step S6, picking up counting time T between 2.-4. _α, move on to " computing T then _β=T _αβ " treatment step S14 in.Here, constant β be for decision from constantly 4. beginning to the cooking time T till 5. constantly _βThe coefficient of (decision cooking conditions).Constant β and the time T α that obtains in step S13 are multiplied each other and computing cooking time T _βAfter, move on to " T _βTiming begins " treatment step S15 in.Here, constant alpha and β are set at 0.05 and 1.3 respectively, and are set at 0.10 and 0.5 respectively under the situations of " dish " shown in Fig. 5 (a) under the situation of " rice ".

In treatment step S15, begin cooking time T to computing in step S14 _βCarry out timing.Move on to the treatment step S16 of " demonstration remaining time " then.In treatment step S16, make cooking time T _βBe presented on the display 13 remaining time as the cooking, moves on to then " through T _β? " determining step S17 in.

In determining step S17, judge whether to have passed through cooking time T _βIf, do not move to step S16, for example update displayed by second unit depreciation counting remaining time through being judged as "No".Then, if promptly reach constantly 5., in determining step S17, be judged as "Yes", then move among the treatment step S18 of " end of cooking processing " through cooking time T β.

In treatment step S18, make magnetron 14 and cooling fan 15 out of service, for being known, the operator finishes, and the end of cooking that not shown buzzer is rung etc. is handled, then end operation (end).

On the other hand, if microcomputer 1 is judged as "Yes" (" milk " or " wine ") in determining step S2, then move on among the treatment step S19 of " weight W measurement ".In treatment step S19, measure the milk that is placed on the rotating disk or the weight W of wine by weight sensor 5, move on to the treatment step S20 of " cooling fan is connected, magnetron connect " then.In treatment step S20, supply with cooling fan 15 and magnetron 14 respectively and begin the cooking driving signal, move on to the treatment step S21 of following " computing cooking time T " then.

In treatment step S21, as shown in Figure 6, utilize linear function computing and decision cooking time T according to the weight W that in step S19, obtains.In this case, constant alpha and β as the slope and the intercept of linear function, compose to different values by the selection of milk or wine respectively in addition.Therefore, can obtain cooking time T by computing T=α W+ β.Here as shown in Figure 6, constant alpha and β are set at 0.21 and 25 respectively under the situation of " milk ", and are set at 0.14 and 22 under the situation of " wine " respectively.

After obtaining these constant union cooking time T, move on to the treatment step S22 of following " demonstration remaining time ", and on display 13, show the cooking time.Then, move on to " elapsed time T? " determining step S23 in, judge whether to move down into step S22 in the situation that is judged as "No" through cooking time T, show and upgrade the remaining time of depreciation count display 13 as mentioned above.Then, in determining step S23, if cooking time T is through being judged as "Yes", then process and the same step S24 of step S18 move on to the treatment step S25 of " adjustment at zero point ".

In treatment step S25, carry out the zero point of weight sensor 5 and adjust.Though in EEPROM4, storing weight sensor 5 zero point Wo initial value since this zero point Wo change in time, so be necessary to adjust.Carry out the adjustment at zero point by following order.

At first, microcomputer 1 judges whether opened door behind the end of cooking, opened if be judged as by the output signal of door switch 7, then reads the detected value of weight sensor 5 this moment, and exists marked difference when judging whether than the cooking.If it is poor to exist when being judged as than the cooking, then the food of cooking is taken out from cooking room by the user, infer and on rotating disk, do not place anything and weight sensor 5 is in uncharge state, detected value is at this moment pressed benchmark as the extraneous situation of the allowable error of initial value Wo under, write said detected value among the EEPROM as the Wo at zero point of present weight sensor 5 and upgrade.In addition, under the initial value Wo big many situation of detected value, do not carry out zero point and adjust than zero point.

Under the situation that detects food weight, read the Wo at zero point of said renewal from EEPROM4 then, weight sensor 5 is according to the Wo sense weight at zero point of the value of representing from this moment.In addition, this is adjusted and there is no need whenever once to cook all once to adjust at zero point, if counting cooking number of times and said count value reach suitable value (for example 10), even carry out once also passable.Adjust if carried out said zero point, then end operation.

In addition, in step S1, if microcomputer 1 is judged as "Yes" (" microwave is strong " or " microwave is weak "), then transfer to the treatment step S26 of " cooling fan connection, magnetron are connected ", driving that signal is supplied with cooling fan 15 and magnetron 14 so that magnetron 14 by strong output or weak output vibration and begin the cooking, move on to the treatment step S27 of following " demonstration remaining time " then, on display 13, be presented at the cooking time T m that sets by rotary encoder 9 before beginning to cook.

Move on to " elapsed time Tm? " then determining step S28, judge whether to have passed through cooking time T m, move down into step S27 in the situation that is judged as "No", similarly show the remaining time of depreciation count display 13 also and upgrade.Then, in determining step S28, be "Yes" through cooking time T m if be judged as, move on to step S18.

The control program of relevant processing as implied above is stored in ROM2 inside as mask pattern, and under the situation that control program does not change, microcomputer 1 is directly read control program and carried out from ROM2.

Below with reference to Fig. 8 the processing of changing part control program shown in Figure 3 is described.

The control content of initial treatment when Fig. 8 has represented power turn-on.At first, if power turn-on and removed resetting of microcomputer 1, " connecting the change switch? " determining step R1 in, microcomputer 1 is read the delivery outlet that is distributed with switch 10 by change, and judges whether change connects (whether moving) with switch 10.For example change is that low level is represented to connect with switch 10, if be judged as "Yes" in determining step R1, then moves on among the treatment step R2 of " altering the procedure of EEPROM is transferred among the RAM ".

In treatment step R2, the content that is stored among the EEPROM4 as altering the procedure is read as serial data, be transferred to then among the RAM3 of microcomputer 1 inside.Here so-called program is meant the program that comprises sense data.Then, move on to and following the change object address is set treatment step R3 to register 11.

In treatment step R3, the change object address in the control program, promptly in step R2 as the change that transfers to RAM3 with the first leading address of program for example 5000H (H represents 16 systems) set the CORAD16 that gives microcomputer 1 inside.This change object address is enrolled in the control program in advance.Move on to then among the treatment step R4 of " permission is carried out and altered the procedure ".

In treatment step R4, permit execution to alter the procedure by data " 1 " being set to CORCN17, move on to then among the determining step R5 of " cooking beginning ".In determining step R5, any key of whether having operated in the enter key 8 by decision operation person judges whether cooking beginning.

If do not operate any key in the enter key 8, promptly in determining step R5, be judged as "No", then move on among the treatment step R6 of " waiting pending ", for example carry out the moment of not shown real-time clock be presented at display 13 first-class etc. pending, turn back to determining step R5 then.If operated any key in the enter key 8, promptly in determining step R5, be judged as "Yes", then move on among the treatment step R7 of " cooking ", if operated the beginning key of enter key 8, then carry out above-mentioned as the flow chart of control content shown in Figure 3.

In addition, in determining step R1, if change is that high level represents to disconnect and be judged as "No" with switch 10, execution in step R2 to R4 and move on to determining step R5 not then, later on and above-mentionedly similarly operate.

Fig. 9 is a flow chart of representing to be transferred to from EEPROM4 the control content that alters the procedure the RAM3.This alters the procedure and is and be to read constant alpha in the control program that enrolls ROM2 and the same structure of subprogram of β, and just the data value of the constant alpha of change and β is different.This subprogram is in the step S10 and S14 and S21 of control program, before the computing that utilizes constant alpha, β and be called and supply with constant alpha and β.

At first, at " change α? " determining step T1 in, judge whether to have authorized the argument of representing the α change by CALL, be judged as under the situation of "Yes", in determining step T2 to T5, judge below the present cooking to as if " milk ", " wine ", " rice " or " dish " in which, and in treatment step T6 to T9, provide the change value of corresponding constant alpha respectively.

In addition, in determining step T1, if the argument that is awarded is not the argument of expression α change, then be judged as "No", and move on to " change β? " determining step T10 in, judge whether the argument that is awarded is the argument of expression constant β change, be judged as under the situation of "Yes", in determining step T11 to T14, judge below the present cooking to as if " milk ", " wine ", " rice " or " dish " in which, and in treatment step T15 to T18, provide the change value of corresponding constant β respectively.

In addition, in determining step T10,, then be judged as "No", withdraw to handle turning back to main program if the argument that is awarded is not the argument of expression constant β change.

Below with reference to Figure 10 the situation that execution alters the procedure is described.The example of the part address figure that alters the procedure of the relevant ROM2 of Figure 10 (a) expression, the example of the part address figure that alters the procedure of the relevant RAM3 of Figure 10 (b) expression, and the example of the part address figure that alters the procedure of the relevant EEPOM4 of Figure 10 (c) expression.

The constant alpha that provides before changing and the subprogram SUB of β have been provided in the address 5000H of the ROM2 shown in Figure 10 (a).In addition, in address 1000H and 2000H, dispose CALL " CALL SUB (α) " respectively and reached " CALL SUB (β) ", in address 1000H and 2000H, obtained constant alpha and β respectively.

In addition, in the address 1000H of the RAM3 shown in Figure 10 (b), disposed from altering the procedure that the address 30000H of the EEPROM4 shown in Figure 10 (c) passes on.In the 20000H of address, disposed transfer command " BR 10000H " in addition to address 10000H.

Under cooking to the situation that likes " rice ", carry out flow chart as shown in Figure 3, in step S10, read constant alpha for computing (1-α) Vmax executive address 1000H " CALL SUB (α) ".At this moment, program counter 20 is replaced by the switch address 5000H of subprogram SUB.

Consistent with the value of being set by CORAD16 in step R3 by the value that makes program counter 20 so, then the output of comparator 19 becomes high level.In addition,,, shift in microcomputer 1 inner generation like this and require signal, carry out transfer command " BR20000H " so the output of AND circuit 21 also becomes high level owing in CORCN17, be set at " 1 " at step R4.In addition, the transfer command of carrying out when transfer requires signal to produce " BR20000H " is fixedly installed by the hardware in the controller of microcomputer 1.

Then, if carry out transfer command " BR 20000H ", 1 of microcomputer is transferred to the address 20000H of RAM3, carries out there configure order i.e. " BR 10000H ", transfers to address 10000H, carries out shown in Figure 9 altering the procedure.Then, owing to supply with α, so the change value 0.04 of reading constant alpha through step T1, T2, T3, T4 and T8 withdraws from processing and turning back to main program as argument.At this moment, in program counter 20, set the return address 1001H of the control program that is contained in the not shown storehouse, turned back in the main program of control program.

In addition, in step S14 for computing T _αβ, at executive address 2000H " CALL SUB (β) " and read under the situation of constant β, similarly program counter 20 is also replaced by the switch address 5000H of subprogram SUB.

Later on above-mentioned same processing in, carry out shown in Figure 9 altering the procedure, in the case, owing to supply with β as argument, so, withdraw from and handle the address 2001H that turns back to main program through the change value 1.5 that step T1, T10, T11, T12, T13 and T14 read constant β.

In addition, the cooking to as if the situation of " dish " up to being transferred to the switch address 10000H that alters the procedure all with above-mentioned the same, reading constant alpha is the change value 0.08 of reading constant alpha through step T1, T2, T3, T4, T5 and T9; Reading constant β is the change value 0.08 of reading constant β through step T1, T10, T11, T12, T13, T14 and T18.

In addition, the cooking is to liking the situation of " milk " or " wine ", owing to the constant alpha and the β that read as at step S21 computing α W+ β, so execution subroutine call instruction in the different address of control program.The cooking to as if the situation of " milk " under, read constant alpha and be the change value 0.25 of reading constant alpha through step T1, T2 and T6; Reading constant β is the change value 10 of reading constant β through step T1, T10, T11 and T15.In addition, under cooking the situation that likes " wine ", reading constant alpha is the change value 0.15 of reading constant alpha through step T1, T2, T3 and T7; Reading constant β is the change value 20 of reading constant β through step T1, T10, T11, T12 and T16.

According to aforesaid embodiment, the formation of the microcomputer 1 of control micro-wave oven is, the operation change is that the change object address 5000H that is stored in the control program of ROM2 inside as mask pattern is registered among the CORAD16 with the situation of switch 10, transfers to RAM3 being stored in altering the procedure among the EPROM4 simultaneously; In control program is carried out, carry out under the address of program counter 20 and the corresponding to situation of address 5000H that is registered among the CORAD16 and transfer to altering the procedure of RAM3, in response to constant alpha and the β of cooking time of the detection signal change decision magnetron 14 of gas sensor 6.

Therefore,, also can easily carry out the change of control program, can revise said altering the procedure by rewriteeing EEPROM4 in addition, so even also can be corresponding to some extent to unpredictalbe shortcoming when ROM2 orders goods even once make after the ROM2.In addition, owing to there is no need to be provided with a plurality of changes with switch 10, so more substrate area need not be set.In addition, owing to need not write unnecessary change subprogram in ROM2 inside, so can make minimum to the capacity of ROM2.

In addition, according to present embodiment, being provided with weight sensor 5 also is stored in the initial value Wo that adjusts the zero point of weight sensor 5 among the EEPROM4, because the formation of microcomputer 1 is to adjust the detection signal execution cooking of while according to said weight sensor 5 zero point of carrying out weight sensor 5, so can correctly cook according to the detection signal of the weight sensor of having adjusted zero point 5.

Aforesaid embodiment is described below in further detail, EEPROM4 is arranged in the micro-wave oven that weight sensor 5 is housed usually as the storage device of the said adjustment at zero point of storage with initial value Wo, therefore, if as described in present embodiment, be stored among the EEPROM4 altering the procedure, then there is no need to the storage that alters the procedure is provided with Nonvolatile memory devices especially, like this can be simply and easily and do not increase into this locality and implement.

The present invention only is limited to embodiment above-mentioned and that accompanying drawing is put down in writing, also can make distortion as described below.

Heater is not limited to magnetron, and electric heater also can.

Sensor is not limited to weight sensor 5, gas sensor 6, and temperature sensor or optical sensor also can.

In addition, gas sensor 6 concentration that detects alcohol etc. also can.

Heating device is not limited to micro-wave oven, and electric oven also can.In addition, wait the heater of controlling electric oven or Electric toaster also to be fine with microcomputer.In this case, its structure can be for example to detect temperature (cook temperature) in the cooking room by temperature sensor, revises the cook temperature or the cooking time of electric heater, revises the control signal of temperature sensor in addition.

Household electrical appliance are not limited to micro-wave oven, also can be electric cooker or washing machine.For example, under the situation of electric cooker, its structure can be to detect the environment temperature of room temperature etc. by temperature sensor, revises the cook temperature when cooking in view of the above.

In addition, under the situation of washing machine, its formation is amount or the quality that detects washings by cloth amount or cloth quality checkout gear as sensor, in response to the water level of said detection signal correction washings or wash time, flow intensity.

Nonvolatile memory devices is not limited to EEPROM4, also can be EEPROM or PROM to make change be high or low with the invalid or effective level of altering the procedure of switch 10, otherwise also can.

The value that constant alpha and the β value after before changing is not limited to put down in writing also can suitably change.

If be transferred to the address 20000H of RAM3 and carry out " BR 20000H " with EEPOM4, but the execution that also can begin directly to alter the procedure altering the procedure.

Though all cooking objects have been changed constant alpha and β, for the constant of the cooking object that there is no need to change, also can original control program and same value write alter the procedure in and read.In addition, its structure also can be: be not read different constants and modification as the cooking time calculating formula itself.

Though can carry out the change of constant alpha and β by a subprogram, read the change value of constant alpha and β more respectively from main program, read once that the two is also passable.In addition, do not constitute subprogram in this case, can read yet according to the common commands steps of enrolling in the main program.

In addition, its structure also can be: change more than two is set with register and comparator and two different change object address are set in microcomputer 1, when these addresses are consistent with the value of program counter 20 and the transfer of carrying out requires signal to become different addresses, carry out the change of constant alpha, β according to different subprograms.In addition, also can carry out other alters the procedure.

Altering the procedure, it is shown in Figure 9 to be not limited to, and also can carry out suitable change according to the kind of household electrical appliance.In addition, the mistake of control program that also can modified R OM2 inside.

Also can suitably change object address 5000H reaches in the address shown in the figure of other addresses.

In addition, the transfer command of carrying out when comparator 19 becomes high voltage is not limited to " BR20000H ", also can suitably change the address or be conditional branch instruction.

The output that also can be not limited to the change of the time of cooking and change magnetron 14.

Its formation also can be: if the output of comparator 19 becomes high level, then carry out the internal interrupt vector in microcomputer 1 controller, said internal interrupt vector programmer when the design of ROM2 becomes variable jump address as the possibility program.

Has following effect according to aforesaid the present invention.

Household electrical appliance according to claim 1, use under the situation of operating means in the operation change, said address and registered under changing in control program is carried out with the corresponding to situation of change object address in the register, carry out and transferred to altering the procedure of temporary storage device, because such structure, so be not to write the control program storage device in advance,, also can easily carry out the change of control program even after making the control program storage device altering the procedure; Even, also can deal with to the shortcoming of before the control program storage device is made, failing in advance.

Household electrical appliance according to claim 2, constitute Nonvolatile memory devices by EEPROM, the correction value of Correction and Control is carried out in said EEPROM storage according to the detection signal of the sensor of control usefulness, because such structure, can make alters the procedure is stored among the EEPROM that has established, can revise said altering the procedure by rewriteeing EEPROM in addition.

According to claim 3 or 4 described heating devices, use under the situation of operating means in the operation change, said address and registered under changing in control program is carried out with the corresponding to situation of change object address in the register, carry out and transferred to the cooking conditions of temporary storage device or altering the procedure of cook temperature and time, because such structure is so carry out the change of cooking conditions or cook temperature and time easily.

Heating device according to claim 5 constitutes heater by magnetron; Constitute Nonvolatile memory devices by EEPROM and also adjust initial value the zero point of the weight sensor of storage detection food weight; Control device carries out the zero point of weight sensor to be adjusted and cooks according to the control signal execution of said weight sensor, because such structure, even in by the cooking of magnetron, also can obtain and claim 1 and 2 same effects.

Claims

1. household electrical appliance, it is controlled by control device, it is characterized in that comprising:

Storage is by the control program storage device of the control program of above-mentioned control device execution;

The temporary storage device that in the processing of above-mentioned control program, uses as the temporary storage aera;

The Nonvolatile memory devices that storage alters the procedure;

The change operating means;

Use under the situation of operating means in the above-mentioned change of operation, above-mentioned control device is registered in change to the change object address of above-mentioned control program with in the register, transfers to above-mentioned temporary storage device being stored in altering the procedure in the above-mentioned Nonvolatile memory devices simultaneously; Said address and registered under changing with the corresponding to situation of change object address in the register carries out having transferred to altering the procedure of above-mentioned temporary storage device in above-mentioned control program is carried out.

2. household electrical appliance as claimed in claim 1 is characterized in that, also are provided with the sensor of control usefulness, and Nonvolatile memory devices is made of EEPROM, and the correction value of Correction and Control is carried out in said EEPROM storage according to the detection signal of the sensor.

3. heating device, it has the heater of the indoor food of cooking, the control device that detects the gas sensor of the concentration of the gas produce in above-mentioned cooking room, control above-mentioned heater and cook according to the detection signal of this gas sensor, it is characterized in that it comprises:

The temporary storage device that in above-mentioned control program is handled, uses as the temporary storage aera;

The Nonvolatile memory devices that alters the procedure of storage cooking conditions;

The change operating means;

4. heating device, it have the indoor food of cooking heater, detect the temperature sensor of above-mentioned cooking indoor temperature, according to the cook temperature of the detection signal control heater of this temperature sensor and the control device of time, it is characterized in that it comprises:

The control program storage device of the control program that storage is carried out by above-mentioned control device,

The temporary storage device that in above-mentioned control program is handled, uses as the temporary storage aera,

Storage cook temperature and the Nonvolatile memory devices that alters the procedure of time,

The change operating means;

5. as claim 3 or 4 described heating devices, it is characterized in that,

Also be provided with the weight sensor that detects food weight;

Heater is made of magnetron;

Nonvolatile memory devices is made of EEPROM and is adjusted initial value at zero point of storing above-mentioned weight sensor;

Control device carries out the zero point of above-mentioned weight sensor and adjusts and cook according to the detection signal execution of said weight sensor.