The bearing calibration of electric equipment and device operation control detection data thereof
The present invention relates to a kind of work control of electric equipment, particularly a kind of accurate operation control method.This control requires the precision of the receiving function of accepting state amount to be height than a large amount of production franchises of environment division.
A kind of rinsing maching of the special explanation of this paper.
At the existing device that is used for a kind of dish-washing machine or a kind of automatic washing machine, the control data of the relevant devices performance working method data relevant with user's using method all are stored in the data field of micro computer.When power supply or standby power supply connection, data are preserved, but when dump, data are no longer preserved, and need re-enter the work of data or setting data.
Existing device only considers that power connection arrives this process of cut-out.This is the working method under a kind of domination of the controlling value of being prepared by manufacturer, usually makes troubles to the user.
For example, with regard to the water level of washing machine, because level switch, receiving circuit and installation dimension have nothing in common with each other on making, and therefore, the water level that all washing machines preset is different, and each equipment has its oneself water level.To washing machine, this does not have problems, because compare with the degree of depth of water, this error is less.And on the other hand, control in the very little dish-washing machine a water level depth, because water level is very low, itself is also included within water level in the foozle.Empty water level is read to show that calculate control water level according to empty water level gauge, and be stored in the data field, when power connection, according to control water level, it is controlled to work, when dump, and loss of data.Thus, for starting working again, just need the reception work of data.Because this situation, the work of equipment usually is to start from drain step.Water in the tank must be discharged, and according to the signal starting equipment of the level switch that is positioned at the sky water level.Like this, as putting into bowl dish and pour hot water before equipment work, start working then, hot water will be discharged.In this case, using method is restricted.
Elementary object of the present invention is will solve at work the inconvenience brought need be than the higher control of the accuracy requirement of the franchise of producing in enormous quantities the time takes place, and solves the complaint that the user produces because of the controlling value that presets resentful to manufacturer.
Obtaining of above-mentioned target is by settle a nonvolatile memory in control circuit, receive reference value data that obtain High Accuracy Control, and comprise element make franchise and product assembling back by the running of regulation after the characteristic of resulting assembly precision, reference value is stored in the nonvolatile memory, and according to the reference value Control work.
If the user is intended to change under the operate as normal program controlling value (for example, the full-water level of water level), this kind change will be received and be stored in the nonvolatile memory relevant with mode of operation, and use as the controlling value of upgrading.Satisfying the desirable work control of user thus is achieved.
According to a feature of the present invention, reach in the electric equipment of the load of under control circuit control, working at a controller that includes the detection signal of the pick-up unit that detects displacement, a receiving detection device, the operation control detection data of electric equipment matches by correct detection Device Testing signal and actual displacement and obtains proofreading and correct, corrected detection data storing in nonvolatile memory, and in loaded work piece by detection data and pick-up unit detection signal after proofreading and correct in the nonvolatile memory are compared, with Control work.
The reference value that comprises device characteristics deposits in the nonvolatile memory of control circuit and uses as the control reference value, so reference value comprises equipment discrepant detection data intrinsic and that produce owing to the manufacturing variation of the assembling mistake of detecting device and circuit and element.By being each step calculation control value on the reference value basis, the work of equipment can be controlled on the higher precision of control accuracy (franchise) than object in enormous quantities.
Because the intrinsic reference value of equipment is received after assembling, even and be stored in power supply be cut off also not can the nonvolatile memory of obliterated data in, the user relies on the data that write in the manufacture process to realize High Accuracy Control.In addition, can upgrade the controlling value that is stored in nonvolatile memory as required in predetermined working method, a kind of ideal control that is suitable for special user is also accomplished.Because it can access when each use equipment or energized, so desirable duty can obtain High Accuracy Control and not limited by the course of work.
The accompanying drawing summary
Fig. 1 illustrates the work control flow chart according to a kind of dish-washing machine of one embodiment of the invention;
Fig. 2 illustrates the circuit block diagram of this dish-washing machine;
Fig. 3 illustrates another work control flow chart according to the dish-washing machine of one embodiment of the invention;
Fig. 4 illustrates the work control flow chart of existing dish-washing machine;
Fig. 5 illustrates the level sensor in one embodiment of the invention;
Fig. 6 illustrates the oscillatory circuit of level sensor;
Fig. 7 illustrates the change of oscillation frequency.
The most preferred embodiment narration
Now, explain control method according to the dish-washing machine of one embodiment of the invention with regard to Fig. 1 and Fig. 2.
The parts of dish-washing machine control usefulness are shown in Fig. 2.They are the control circuits 1 that comprise a nonvolatile memory and power switch 2, an enter key 3 and a light emitting diode indicator 4 as user's adjusting and determining unit, washing pump 5, fan 6, well heater 7 and extraction pump 8 are as the loading attachment of dish-washing machine, one cover plate key 9 detects a kind of a temperature sensor and level sensor of duty.As shown in Figure 5 and Figure 6, in the level sensor 10 of measuring the sink middle water level, the air in the inlet tube 12 of this sensor 10 is passed to bellows 13 to the pressure that changes along with the water level difference in the sink so that its distortion.This distortion is converted into coil 14 internal inductances and changes, and inputs to control circuit as the variation of " Colpitz " oscillatory circuit 15 oscillation frequency.When the varying width of water level as in desk-top dish-washing machine hour, then control width just less than foozle and the assembling of inlet tube 12 and the total error of alignment error of level sensor 10.Thus, after assembling process, level sensor is stored in the nonvolatile memory of control circuit at the detection signal at empty water level place.Even because nonvolatile memory can lost content under the situation of dump yet, when this equipment was sent to final user or retailer by shipping, it was still keeping the original empty waterlevel data of equipment.In view of the above, when using, water level is by being controlled based on the required control water level of empty waterlevel data calculating that is stored in the nonvolatile memory.High Accuracy Control is accomplished thus.As shown in Figure 1, be written into and be stored in the nonvolatile memory by the empty waterlevel data that mode received that works independently, these data are read to show when equipment work, and calculate the controlling value of needs so that control the course of work that is set by the user in predetermined extent according to reference value.
Level sensor 10(pick-up unit) foozle accounts for the major part of total error, as shown in Figure 7, and the variation of the oscillation frequency of oscillatory circuit 15 when the output of level sensor 10 is moved as magnet 16 and obtaining.The result of the less displacement (several millimeters) of magnet 16 is the bigger variation (several kilo hertzs) of oscillation frequency.Vibration frequency change is input in the micro computer (MPU) of control circuit 1 with detect determine scope from very low to high SEA LEVEL VARIATION.
Level switch 10 comprises between many parts and each level switch 10 owing to foozle is had nothing in common with each other.Because this species diversity, per unit microcomputer is also different mutually to the detected value of pressure.In order to address the above problem, in prior art, only select to use those under predetermined pressure, to produce the sensor of preset frequency.Remaining detection means then can not be used.Thus, a large amount of level sensors have been wasted.
The present invention attempts to stop this waste.For reaching this purpose, in micro computer (MPU), be provided with writeable nonvolatile memory.Be added to level sensor 10 at zero level, middle water level and high water stage upward pressure.When applying zero level pressure, but in this pressure artificially or the automatic write non-volatile memory.When applying middle water level and high water stage pressure, they are written in the nonvolatile memory equally.Level switch 10 is assembled into product and observes the water level of product, data also can be written into into.When writing of water level is when using the independent sensor 10 be not assembled into product to carry out, nonvolatile memory is housed in level sensor 10 domestic demands.At water level is after level sensor 10 is assembled into product and write fashionablely, is provided with nonvolatile memory in control circuit 1.Water level can be write by independent level sensor, and after being assembled into product, water level can be when checking all over products similarities and differences and in the nonvolatile memory in the write control circuit 1.By this method, be written in the nonvolatile memory corresponding to the data of actual water level (pressure), level sensor can not be wasted like this, even they are different, can use in product yet.For given water level (pressure), various level sensors have different oscillation frequency.
Data in the write non-volatile memory be not level sensor direct output but through the detection data that conform to actual water level (pressure) of overcorrect.When the scrutiny water level, prepare the positive detection data of inspection, conform to actual water level (pressure).When the scrutiny water level, the detection data of preparing to proofread and correct are pretty troublesome.Thus, has only inspection zero level (empty water level) so that corrected detection data are written in the nonvolatile memory.And other water levels can calculate according to zero level, and its result can be written in the nonvolatile memory.Under the variation of oscillation frequency from the zero level to the high water stage is linear situation substantially, when certain water level on is a bit determined, just can be regarded as out water level.For improving the precision of check point, will use many check points, such as zero level, middle water level and high water stage.
By when drain steps finishes, as shown in Figure 1 unloaded operation step and empty water level write step are set, the empty waterlevel data that is stored in the nonvolatile memory can obtain upgrading in drain steps or each the pre-determined number drain steps each time.Thus, new data more after the life-span of having taken all factors into consideration level sensor and circuit, High Accuracy Control is achieved, until product rejection.
Fig. 3 shows another kind of control method.In the test run after production and assembly, having carried out controlling value upgrades running work and includes detection error original and that caused by foozle and product component assembly error in the product with reception, waterlevel data in the intended operation process, and spray washing water level, be the empty waterlevel data of data of the spilling water position of thread well heater in the dish-washing machine, these data storing are gone in the nonvolatile memory.
In use, energized, equipment drives again, and the basic control data that is stored in the nonvolatile memory is read, and the necessary auxiliary controlling value of control running is calculated according to basic control data, and is stored in the data field.According to user's instruction, equipment is worked under given step and order.In these working methods, the bowl dish immerses immersion water level in the washing by soaking step in the washings to be auxiliary controlling value and to calculate by empty waterlevel data.Because it is by control circuit order deviser or the compulsory water level of fabricator, it can not always be fit to the needed water level of user's home environment.If the bowl dish of washing fully soaks, this water level is just enough, does not need to add in addition water again.If the bowl dish does not fully soak, be necessary the raising water level.When the user regulated water level in determining step, this regulated value was stored into nonvolatile memory, the water level control value that these data are used during as next washing by soaking step and being preserved.By this method, dish-washing machine has had controlling value and the original controlling value that is fit to user's operability that reaches of equipment that foozle, parts and assembly error are proofreaied and correct.So dish-washing machine is realized High Accuracy Control.
As shown in Figure 4, in existing dish-washing machine, the empty water level reading the when device of the foozle that receiving equipment is intrinsic depends on each work.Thus, running work often starts from drain steps, after drain steps, is received in the reading of the level sensor of sky water level, measures spray washing water level and washing by soaking water level on the basis of level sensor reading.Under this method, in order to measure empty water level when running work begins, the washings that the user last time put into are all discharged.In addition, dirty bowl dish soaks one period schedule time earlier and re-uses the method that these washings start working and just can't adopt in washings.
According to the present invention, the reference value of water level control value-empty waterlevel data can store in manufacture process, and as the reading of level sensor, the reference control value of this storage is read out to calculate other controlling values.Provide thus and be available for users to the highly dish-washing machine of operation.
Even the data that store are destroyed, work also can be controlled by the data that are stored in the ROM (read-only memory).Like this, strengthened security.
Explain the washing machine of application in addition now.
The State Control numerical value of washing machine comprises the water level of washings and washings, the quantity of laundry load, washing agent quantity and as the current of subordinate controlled quentity controlled variable with corresponding to the working method of working time.Those controlling values comprise the water level of the manufacturing that comprised part of washing machine and assembling time error and laundry amounts and the water level, detergent amount and the working method that change according to user's wish.
Taking-up at a washing machine load water and the idling of not load clothing carry under the state laundry amounts measured value and deposit in the nonvolatile memory of control circuit, and calculate controlling value as reference value.In this manner, under the situation of the measuring error of considering the detecting device error and causing, can measure laundry amounts by the drive unit friction loss.In addition, by will depositing in the nonvolatile memory by empty water level and the predetermined reference water level that level switch detects, and control water level in view of the above, to realize the control of high precision water level.
When providing the laundry amounts that to wash and importing the dirty degree of dress material and just can determine water level, washing agent quantity and working method.Yet because the controlling value that manufacturer determined also seldom can satisfy the user based on the hope of oneself and the standard of custom decision, so they will be updated.User for those dissatisfied working methods of being scheduled to controls washing machine automatically and makes troubles to them.Comprise that as the laundry amounts data of working method measured value the water level that the user proofreaies and correct and the dirty degree of clothing of detergent amount and input all are associated and are stored in the nonvolatile memory.When the work running of next time following, based on the clothes amount data of importing the dirty degree of clothing and recording, the readable data that deposit in nonvolatile memory of showing, and based on this Data Control work running, like this, washing machine is operated by user's hope.If the working method of the laundry amounts that is coincident with the dirty degree of the clothing of input and records is not kept in into, machine can be worked being written under the working method in the ROM (read-only memory) of being prepared by manufacturer, and this working method is corrected and deposits in the nonvolatile memory, can be used as user's optimum mode of operation.
Explain the clothes drier of another application now.Detection is the most direct method according to the method for the dry working method aridity of the clothes drier of taking out the air humidity of showing, and high precision is arranged.Yet owing to have nothing to do with the humidity of external environment during aridity in control, dry control will inevitably be more excessive.The result is, the excessive waste energy and because overdrying, clothing is damaged.
When drying clothes, if the ambient humidity height, the dress material thing should be dried to than low any the humidity of ambient humidity, if ambient humidity is low, they just are dried to than high any the humidity of ambient humidity, will balance each other with ambient humidity after the clothing taking-up like this.This is a kind of effective dry method.
Yet, having in a kind of common clothesdrier of well heater, machine is difficult to determine whether environment temperature and the humidity surveyed are the desirable number of degrees, because be difficult to determine whether the heat that its own well heater is produced is still also keeping.If the temperature shown in the Temperature Detector is the same with environment temperature, this temperature data just is stored in the nonvolatile memory of control circuit, and compares with the temperature data that Temperature Detector records when the work beginning.If the temperature data that records is lower than storage, predetermined temperature data, can affirm that environment temperature has been recorded and stopped dry humidity controlling value and calculated on the humidity data that records.Temperature data that stores and the humidity data that records are handled, and are used for upgrading the environmental data of temperature placed in the middle in the nonvolatile memory.
When carrying out dry work again, the user is in conjunction with being used as ambient condition and the temperature and humidity that receives the earliest and the aridity data of proofreading and correct are stored, and like this, the aridity that the user selects is accomplished in next work running.
By this method, clothesdrier can be operated effectively.
Explain the suction cleaner of another application now.
The control project of suction cleaner comprise dust suction power and with floor relevant data operations vacuum.The floor data are relevant with the floor that needs dust suction.Because the value volume and range of product of dust and the vacuum that is used for dust suction are base area board type and difference, the floor kind of wanting dust suction is to determine to regulate suction port with the adjusting suction cleaner according to floor data and slit, floor, and the dust suction vacuum control is on the value that adapts to the floor.When the dust suction process soon finishes, if the dust suction amount less than the end dust quantity that is determined by the floor kind, the dust quantity of being inhaled reduces, dust suction just finishes.
Yet dust suction vacuum and dust suction finish definitely has very big variation according to user and environment, if they are caused feeling uncertain by manufacturer's unilateral decision meeting.Preferably represent most of users' decision to determine the controlling value that alters a great deal between the user.Yet if fully with reference to representative suggestion, the usability of suction cleaner will be very low.In view of the above, the use-pattern of the pattern course of work that main user is scheduled to is relevant with the floor data, comprises that the dust suction amount when dust suction vacuum data and dust suction finish is stored in the nonvolatile memory of control circuit.In normal dust suction working method, the data of storage are read to show, and relatively, suction cleaner can be controlled by the working method that is fit to the user house like this.
According to the present invention, as mentioned above, the detection error that is caused by the precision and the assembly precision of product component is included in the measured value, this measured value is the reference value as predetermined course of work inner control value in product assembling back, and be stored in the nonvolatile memory, even this storer still keeps its content after the power supply of control circuit is cut off.This measured value can be read and work controlled by the controlling value that calculates according to this reference value when equipment work.In view of the above, the parts and the assembly precision of the comparable production period of precision of the control of realization are higher, and the washing machine of easy manufacturing and use so just can be provided.
In addition, the controlling value by working method that the user is selected is stored into and replaces the work controlling value in the nonvolatile memory, by the controlling value that the user selects, provides the using method that can adapt to indivedual users and environment for use and the washing machine of working.