CN106546315A - A kind of LOAD CELLS circuit and Weighing method for being arranged at inner pan of electric cooker handle - Google Patents
A kind of LOAD CELLS circuit and Weighing method for being arranged at inner pan of electric cooker handle Download PDFInfo
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- CN106546315A CN106546315A CN201611113455.XA CN201611113455A CN106546315A CN 106546315 A CN106546315 A CN 106546315A CN 201611113455 A CN201611113455 A CN 201611113455A CN 106546315 A CN106546315 A CN 106546315A
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- load cells
- electric cooker
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/52—Weighing apparatus combined with other objects, e.g. furniture
- G01G19/56—Weighing apparatus combined with other objects, e.g. furniture combined with handles of tools or household implements
Abstract
The invention discloses a kind of LOAD CELLS circuit and Weighing method for being arranged at inner pan of electric cooker handle, which includes power supply, SOC, LOAD CELLS and display device, the LOAD CELLS has two, it is respectively arranged in two handles of electric cooker, the LOAD CELLS and display device are connected to SOC, and power supply is powered to SOC and display device.The SOC mainly includes ADC, data processing module and I/O control modules, wherein, ADC is connected with two LOAD CELLSs, the signal that LOAD CELLS is obtained is changed by ADC, is transferred to data processing module, and I/O control modules are connected to data processing module.LOAD CELLS can be positioned over inner pan of electric cooker handle by the circuit and method, so that people make to carry out when rice dress water is filled before cooking to weigh can be with enhanced convenience, and the weight of object in pot is weighed up using special circuit and processing procedure, accuracy and anti-shudder performance that this kind of structure is weighed can be lifted.
Description
Technical field
The invention belongs to the technical field of electric cooker, the weighing circuit and Weighing method of more particularly to a kind of electric cooker.
Background technology
At present, electric cooker has become indispensable household appliances in each family.With the improvement of people's living standards,
People are also improved with the requirement of taste to the quality of diet.The present especially gradually accelerated in current people's rhythm of life
My god, many people want to scientifically carry out diet, it is desirable to be able to quickly reasonably make the rice of delicious food, make it is suitable oneself
The rice of mouthfeel.Electric cooker traditional at present does not accomplish this point really, can only be with sensation when many times we cook
Go to add amount of rice, can only be with addition corresponding water amount be felt, due to lacking the quantization method for facilitating science, the rice made is often
The preferable state required for oneself is not reached on appetite and mouthfeel.
Rice cooker structure with function of weighing is nearly all the bottom that LOAD CELLS is positioned over electric rice cooker body at present,
Such as patent application 201520600391.0, this kind of structure weigh electric cooker in actually used its function of weighing more not
Just, because majority's custom is all that interior pot is brought out into luggage rice the operation for filling water, to using its function of weighing, also needing will be interior
Pot is put in electric rice cooker body, thus inconvenient to the comparison of weighing repeatedly during the follow-up adjustment water yield.
The content of the invention
Based on this, thus the primary mesh of the present invention be to provide a kind of LOAD CELLS for being arranged at inner pan of electric cooker handle
LOAD CELLS can be positioned over inner pan of electric cooker handle by circuit and Weighing method, the circuit and method so that people are boiling
Make to carry out weighing and with enhanced convenience, and can weigh up in pot using special circuit and processing procedure when filling rice dress water before meals
Weight of object, can lift accuracy and anti-shudder performance that this kind of structure is weighed.
Another mesh ground of the present invention be provide a kind of LOAD CELLS circuit for being arranged at inner pan of electric cooker handle and
Weighing method, the circuit and method are weighed accurately, and realize simplicity, with low cost.
It has been investigated that, LOAD CELLS is positioned over into the inner pan of electric cooker of inner pan of electric cooker handle, pot with handss end
When actually being weighed, impact is weighed and has at following 2 points：1. low-angle inclination, as people can not be protected when normal end pot
How many card horizontality very, have slight inclination, but incline the power of the gravity direction that sensor can be caused to receive
Reduce so that the signal message of sensor feedback is inaccurate, and then affect to weigh；2. during use, people is difficult to keep away when pot is held
The small shake exempted from.When normal, people can produce the action of shake when pot is held, even if naked eyes be can't see, these
Action extremely affects the Stability and veracity weighed, this factor be affect the structure weigh it is stable with it is accurate it is maximum because
Element.
For achieving the above object, the technical scheme is that：
A kind of LOAD CELLS circuit for being arranged at inner pan of electric cooker handle, which includes power supply, SOC (system-level cores
Piece), LOAD CELLS and display device, it is characterised in that the LOAD CELLS has two, is respectively arranged at the two of electric cooker
In individual handle, the LOAD CELLS and display device are connected to SOC, and power supply is powered to SOC and display device.
The SOC mainly includes ADC, data processing module and I/O control modules, wherein, ADC and two
LOAD CELLS connects, and the signal that LOAD CELLS is obtained is changed by ADC, is transferred to data processing module, I/O controls
Molding block is connected to data processing module.
The display device can use LCD liquid crystal display screens or charactron etc., according to display device be LCD screen, then contain in SOC
There are LCD drive modules.
Described two LOAD CELLSs are respectively connected to the two-way AD detection mouths of SOC, or two sensors first parallel connections are again
Access an AD detection mouth of SOC.
The Weighing method that a kind of LOAD CELLS by being arranged at inner pan of electric cooker handle is carried out, the method is first in pot
Handle at arrange LOAD CELLS, horizontality AD value is gone out according to the state or Jitter Calculation of current tilt then, so as to obtain
Obtain the weight of object value in electric cooker.
If two LOAD CELLSs are respectively connected to the two-way AD detection mouths of SOC, need to do related algorithm to the AD for gathering
Process, i.e., the diversity of the AD values for being gathered according to two-way AD detection mouths, judge the size of handle stress at interior pot two, so as to calculate
Go out current inclined state and then extrapolate horizontality AD value, idiographic flow is as follows：
101st, the signal of two-way LOAD CELLS is gathered, AD values are obtained；
102nd, processed using related algorithm；It is according to the diversity of the AD values of two-way AD detection mouths collection, then right again
AD values during than being demarcated using specified weight, judge the size of handle stress at interior pot two；
103rd, calculate heeling condition；
104th, the AD values of horizontality are calculated, is exported.
When shake is run into, in order to overcome jitter problem, overall handling process mainly to include：Initialization section；Button
Scanning and process part；AD is gathered and process part；Stabilization process part；Display portion.Wherein, for stabilization problem depends on fixed
Property effect be AD collections and process part and stabilization process part.Specifically, the handling process of shake is as follows：
201st, initialize, configurable clock generator, intervalometer, I/O port, SD ADC；
202nd, AD values are gathered, and carries out Filtering Processing；
203rd, scan button；
204th, keystroke handling；
205th, judge whether calibrated, be to be shown, whether electric cooker is otherwise determined whether in laying state,
It is to be shown, otherwise carries out next step；
206th, ISN is calculated, and carries out stabilization process；
207th, weight is calculated, and is shown.
Further, in the step 202, after collection AD, in order to tackle the shake during use, need using with rank
AD filters calculation, calculates correlation filtering value according to filtering correlation formula.
In 206 step, it is that filtered AD values are converted into actual weight into certain multiple relation to calculate ISN
Weight interior code value, interior code value is carried out into stabilization process again then.
In the stabilization of this programme is processed, the process of stabilization process is divided into three states, respectively：Do not allow to lock shape
State, it is allowed to lock-out state and locked state, the weight result wherein under lock-out state are exactly whole stabilization processing procedure
Result afterwards.In 206 step, the flow process of stabilization process is：
2061st, judge whether current stabilization state has been locked into after stabilization program entry；If locked,
Hold line-locked operation：Judge whether weight reaches certain number of times toward same direction change, unlock if reaching state, no
Reach and terminate stabilization processing procedure；If currently locked, next step is performed；
2062nd, the operation of non-locking is performed, the state of non-locking is divided into permission lock-out state and does not allow lock-out state, respectively
The different operation of individual state correspondence；
2063rd, locking is determined whether, if allowing locking, performing allows the operating procedure of locking, otherwise performs
The operating procedure for locking is not allowed.
The lock step flow process is not allowed to be：Current interior code value and backup value difference are first asked, corresponding behaviour is done according to difference then
Make, wherein add up relevant temporal parameter if difference is less than defined threshold, will if the time is reached in prescribed limit changes of threshold
Ask, put permission lock flag and update relevant parameter；If judging, the equidirectional big variable quantity cumulative time reaches certain hour,
Reset relevant parameter.
The lock step flow process has been allowed to be：Current interior code value and backup value difference are asked, is made if difference is less than defined threshold
The process of backup value and relevant parameter is updated, can show that if operation times reach condition locking weight interior code value juxtaposition enters lock
Calibration will；Reset if equidirectional difference reaches condition more than or equal to defined threshold number of times locking relevant parameter, and releasing allows
Lock-out state.
Described locking, is to fix interior code value, and interior code value just can draw gravimetric value again after conversion, can subsequently show
Weight of object value in pot is shown.
User can be currently to claim rice state or claim rice water state according to button or other logical operations regulation, with
Reach more preferable using effect.
The present invention is positioned over the function of weighing of electric cooker of weighing on inner pan of electric cooker, can be that user is more easily filling
Rice with dress water after weighed, and can overcome well staff end pot because conventional jitter with incline generation interference,
Make which not affect function of weighing so as to weigh accurately, and there is anti-shudder performance.
Description of the drawings
Fig. 1 is the structural representation implemented by the present invention.
Fig. 2 is the circuit theory diagrams implemented by the present invention.
Fig. 3 is the structured flowchart of the implemented SOC of the present invention.
Fig. 4 is the reckoning horizontality AD value program flow diagram implemented by the present invention.
Fig. 5 is the stabilization process chart implemented by the present invention.
Fig. 6 is the implemented interior code value process chart of the present invention.
Fig. 7 is the locking implemented and the weight interior code value flow chart that unlocks of the invention.
Fig. 8 is the AD filtering flow charts implemented by the present invention.
Fig. 9 be the present invention implemented do not allow lock step flow chart.
Figure 10 is the lock step particular flow sheet of permission implemented by the present invention.
Figure 11 is the locked step particular flow sheet implemented by the present invention.
Figure 12 is that the little variable quantity implemented by the present invention accelerates lock step flow chart.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
Fig. 1 show the schematic diagram arranged LOAD CELLS with inner vessel for electrical cooking-vessel handle realized by the present invention, by Fig. 1
Can be seen that and LOAD CELLS is positioned at the handle 2 of pot in electric cooker 1 us the two ends of the handle of pot need to all be connected and weigh
Sensor S1 and S2, in run-off the straight, although two handle discontinuity, but overall stress is constant, so two one or two
The signal of the LOAD CELLS common feedback at handss is being inclined with difference under non-tilt state less, overcomes inclined mesh to reach
's.
After determining the placement location of sensor S1, S2, also need to coordinate related sensor detection and signal processing system, this
The invention circuit block diagram taken is as shown in Fig. 2 therein it can be seen that circuit mainly includes power supply, SOC, LOAD CELLS
And display device, wherein display device can use LCD liquid crystal display screens or charactron etc..
SOC module block diagram is as shown in figure 3, mainly have ADC, data processing module and I/O control modules in SOC.If
The display device for adopting it is also possible to use the SOC containing LCD drive modules for LCD screen, then.The wherein company of LOAD CELLS and SOC
Connect and can take as two LOAD CELLSs are respectively connected to the mode of the two-way AD detection mouths of SOC in Fig. 2, it would however also be possible to employ two
Sensor first parallel connection accesses the form of an AD detection mouth of SOC again.During according to the such as connected mode of Fig. 2, need to access SOC
The two-way AD detection mouths at end, and need to be the AD for gathering related algorithm process, it is current at the two-way AD reckonings according to collection
Inclined state simultaneously extrapolates horizontality AD value, and handling process is as shown in Figure 4.
Idiographic flow is as follows：
101st, the signal of two-way LOAD CELLS is gathered, AD values are obtained；
102nd, processed using related algorithm；It is according to the diversity of the AD values of two-way AD detection mouths collection, then right again
AD values during than being demarcated using specified weight, judge the size of handle stress at interior pot two；
103rd, calculate heeling condition；
104th, the AD values of horizontality are calculated, is exported.
With regard to jitter problem, owed using the effect that conventional filtering method reaches using during above-mentioned LOAD CELLS laying method
It is good.In order to overcome jitter problem, Weighing control flow chart is as shown in figure 5, the program circuit of totality is mainly included：Initialization section
Point；Key scan and process part；AD is gathered and process part；Stabilization process part；Display portion.Wherein, for stabilization is asked
What topic took decisive role is AD collections and process part and stabilization process part.
Specifically, process (the i.e. stabilization process) flow process of shake is as follows：
201st, initialize, configurable clock generator, intervalometer, I/O port, SD and ADC；
202nd, AD values are gathered, and carries out Filtering Processing；
203rd, scan button；
204th, keystroke handling；
205th, judge whether calibrated, be to be shown, whether electric cooker is otherwise determined whether in laying state,
It is to be shown, otherwise carries out next step；
206th, ISN is calculated, and carries out stabilization process；
207th, weight is calculated, and is shown.
Gather with regard to AD and process part, after collection AD, in order to tackle the shake during use, need using with rank
AD wave filter, calculates correlation filtering value according to filtering correlation formula.
Next to that stabilization process part, in this programme for filtered AD values first need to convert thereof into actual weight into
The weight interior code value of certain multiple relation, is then carried out stabilization process again.Flow process such as Fig. 6 institutes of interior code value stabilization process
Show：
In the stabilization of this programme is processed, the process of stabilization process is divided into three states, respectively：Do not allow to lock shape
State, it is allowed to lock-out state and locked state, the weight result wherein under lock-out state are exactly whole stabilization processing procedure
Result afterwards.In 206 step, the flow process of stabilization process is：
2061st, judge whether current stabilization state has been locked into after stabilization program entry；If locked,
Perform locked operation：Judge whether weight reaches certain number of times toward same direction change, unlock if reaching state,
It is not up to, continues to terminate stabilization processing procedure.Next step is performed if currently being locked；
2062nd, the operation of non-locking is performed, the state of non-locking is divided into permission lock-out state and does not allow lock-out state, respectively
The different operation of individual state correspondence；
2063rd, locking is determined whether, if allowing locking, performing allows the operating procedure of locking, otherwise performs
The operating procedure for locking is not allowed.
Wherein, the lock step flow process is not allowed to be：Current interior code value and backup value difference are first asked, phase is done according to difference then
Should operate, wherein if difference less than adding up relevant temporal parameter if defined threshold, if reach in the prescribed limit changes of threshold
Between require, put permission and lock flag update relevant parameter；If judging, the equidirectional big variable quantity cumulative time reaches a timing
Between, then reset relevant parameter.
The lock step flow process has been allowed to be：Current interior code value and backup value difference are asked, is made if difference is less than defined threshold
The process of backup value and relevant parameter is updated, can show that if operation times reach condition locking weight interior code value juxtaposition enters lock
Calibration will；Reset if equidirectional difference reaches condition more than or equal to defined threshold number of times locking relevant parameter, and releasing allows
Lock-out state.
Described locking, is to fix interior code value, and interior code value just can draw gravimetric value again after conversion, can subsequently show
Weight of object value in pot is shown.
Locking is with the weight interior code value flow process that unlocks as shown in fig. 7, its concrete step is：
301st, judge whether to have been locked.
302nd, to having entered the above-mentioned locked operating procedure of line-locked execution, to non-locking, then judge whether
Allow locking.
If the 303, allowing locking, the operating procedure of above-mentioned permission locking is performed, otherwise performing above-mentioned does not allow locking
Operating procedure.
304th, further perform locking to judge, to perform above-mentioned permission locking judge whether meet locking condition, if
It is then to be locked；It is above-mentioned to execution not allow what is locked to judge whether that satisfaction allows locking condition, if it is, being permitted
Perhaps lock, it is no to perform next step.
305th, 301 steps, reciprocation cycle are returned.
In 304 steps, if the judgement for performing above-mentioned permission locking is unsatisfactory for locking condition, judge whether to release lock
It is fixed, it is to unlock, it is no to return 301 steps.
After 301 steps are held, further determine whether to meet the condition for unlocking, if it is, unlock, otherwise
Perform above-mentioned locked operating procedure.
Can be seen that whole ISN anti-shaking process mainly has the operating procedure of three branches by above-mentioned two flow chart, respectively
For：The operating procedure of interior code value is locked；Non-locking has still allowed lock operation step；Non-locking and do not allow locking behaviour
Make step.The gravimetric value ISN of one locking show that step is to allow locking to arrive locking again to allow to lock onto.In three steps,
Locked step can only be skipped to and not allow lock step；Do not allow lock step skip to permission lock step；Allow locking
Step can skip to other two steps, and turning wherein between each step jumps and need to meet some requirements, and need comprehensive ISN
The change direction of value, changes size, continues transformation period to consider.
The interior code value of the locking under lock-out state just can draw gravimetric value again after conversion, subsequently can be in display portion
Display take the dish out of the pot in weight of object value, user can be being currently to claim rice state also according to button or other logical operations regulation
It is to claim rice water state, to reach more preferable using effect.
In the circuit block diagram of Fig. 1, collection and the data processing unit SOC of AD can use the CSU8RP1381 in core sea, should
SOC has a 2 road 24bit Sigma-Delta type high-precision adcs, it is interior with precision for ± 2% 8MHz agitators, 4 × 32/6
× 30 LCD drives, the resource such as intervalometer of 48 programmable pre- frequency dividings, can make hardware to present design well
Hold.
In the jitter problem for overcoming people when pot is held, with regard to the process part after AD collections, the method for wherein AD collections
Had already described above.After collection AD, in order to tackle the shake during use, need to use the AD wave filter with rank.Realize
Flow process is as shown in figure 8, step is described as：After the AD values of the horizontality that collection is extrapolated, this is calculated according to filtering correlation formula
Secondary filter value, the difference for then being filtered with last time according to this filtering decide whether fast refresh.It is specific as follows：
401st, obtain this sampling AD value；
402nd, calculating is filtered using Filtering Formula, calculate this filter value；
403rd, this filter value and last time filter value are subtracted each other, judges which after subtracting each other whether more than threshold values；
404th, if greater than threshold values, then filter value is updated, this sampled value is given by last time sampled value, by last time filter value
Give this sampled value；If less than threshold values, then this sampled value is given by last time sampled value, give this by last time filter value
Filter value；
405th, this sampled value and this filter value are exported.
In the process of interior code value stabilization, lock step flow process such as Fig. 9 is not allowed, be described mainly as asking current interior code value with backup
Then value difference value does corresponding operating according to difference, wherein add up relevant temporal parameter if difference is less than defined threshold, if on rule
Determining time requirement is reached in range threshold change then to put allows lock flag to update relevant parameter；If judging equidirectional big change
The amount cumulative time reaches certain hour, then reset relevant parameter.
Specifically, its flow process is：
501st, calculate the difference of current interior code value and backup interior code value；
502nd, judge difference whether in threshold range；
503rd, if it is, judging that current variable quantity is less, the relevant parameters such as ISN are carried out and is updated and is backed up；If not,
Then judge that current variable quantity is larger, carry out timing；
504th, judge whether the little variable quantity persistent period reaches requirement, be then to reset to allow lock flag, update related ginseng
Number, and backed up.
In the process of interior code value stabilization, lock step flow process has been allowed as shown in Figure 10, sought current interior code value with backup value difference
Value, if difference is less than defined threshold makees to update the process of backup value and relevant parameter, can obtain if operation times reach condition
Go out to lock weight interior code value juxtaposition and enter lock flag；If equidirectional difference reaches condition more than or equal to defined threshold number of times
Reset locking relevant parameter, and releasing allows lock-out state.
Specifically, flow process is；
601st, current interior code value and backup value difference are asked.
602nd, judge above-mentioned difference whether less than the threshold value for specifying.It is, when removing the correlometer for unlocking, to update standby
Part value and relevant parameter.Next step is performed otherwise.
603rd, whether the equidirectional change of difference is judged more than certain number of times, it is no, then update backup value and relevant parameter；It is
Then reset locking relevant parameter, and removing allows the mark for locking, terminates.
604th, after updating backup value and relevant parameter, judge whether to reach operation times, be, draw locking weight ISN
Value, inserts lock flag.
In the process of interior code value stabilization, locked steps flow chart as shown in figure 11, asks current interior code value and backup value difference,
Quit a program if difference is less than defined threshold outlet；The parameter that unlocks is updated if difference is more than the threshold value, if except locking
Parameter reaches rated condition and then resets locking relevant parameter, and unlock state.
Specifically handling process is：
701st, current interior code value and backup value difference are asked.
702nd, judge above-mentioned difference whether less than the threshold value for specifying.It is that the equidirectional change for then determining whether difference is
It is no more than certain number of times；Otherwise reset the relevant parameter that unlocks, and terminates.
703rd, equidirectional change then updates the relevant parameter that unlocks more than certain number of times；Otherwise reset the related ginseng of locking
Number, releasing allows lock flag and locked mark, terminates.
704th, after updating the relevant parameter that unlocks, determine whether whether difference is more than the big threshold values of a regulation.
705th, it is to update the relevant parameter that unlocks, accelerates unblock process；Otherwise terminate.
Interior code value stabilization process in, when being locked, in order to reduce put when relatively stable on allow lock flag
Time, program the step of a little variable quantity accelerates locking can be added in for lock operation step, as shown in figure 12, asked and worked as
Front interior code value and backup value difference, if difference is continuous to reach certain condition less than a smaller threshold value, judge current weight
Amount is more stable, can put permission locking mark, accelerate locking flow with this.Idiographic flow is：
801st, judge whether to have locked.
802nd, locked, performed above-mentioned locked operating procedure, without locking, then asked current interior code value and backup value
Difference.
803rd, whether above-mentioned difference is judged less than the little threshold values of regulation, little threshold value can choose the error requirements of Current protocols
Value.
804th, otherwise perform above-mentioned non-locking operating procedure；It is then to update to accelerate locking parameter.
805th, judge whether to reach acceleration environment.
806th, reach acceleration environment and then put permission lock flag, update relevant parameter；Relevant parameter is otherwise updated, is updated standby
Part value.
The present invention is positioned over the function of weighing of electric cooker of weighing on inner pan of electric cooker, can be that user is more easily filling
Rice with dress water after weighed, and can overcome well staff end pot because conventional jitter with incline generation interference,
Make which not affect function of weighing so as to weigh accurately, and there is anti-shudder performance.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of LOAD CELLS circuit for being arranged at inner pan of electric cooker handle, which includes power supply, SOC (system level chip),
LOAD CELLS and display device, it is characterised in that the LOAD CELLS has two, are respectively arranged at the two one or two of electric cooker
In handss, the LOAD CELLS and display device are connected to SOC, and power supply is powered to SOC and display device；
The SOC mainly includes ADC, data processing module and I/O control modules, wherein, ADC is weighed with two
Sensor connects, and the signal that LOAD CELLS is obtained is changed by ADC, is transferred to data processing module, I/O control moulds
Block is connected to data processing module.
2. the LOAD CELLS circuit of inner pan of electric cooker handle is arranged at as claimed in claim 1, it is characterised in that described aobvious
Showing device can use LCD liquid crystal display screens or charactron, according to display device be LCD screen, then contain LCD drive modules in SOC.
3. the LOAD CELLS circuit of inner pan of electric cooker handle is arranged at as claimed in claim 1, it is characterised in that described two
Individual LOAD CELLS is respectively connected to the two-way AD detection mouths of SOC, or the parallel connection of two sensor elder generations accesses an AD of SOC again
Detection mouth.
4. a kind of Weighing method that LOAD CELLS by being arranged at inner pan of electric cooker handle is carried out, it is characterised in that the method
LOAD CELLS is set at the handle of pot first, horizontality AD value is gone out according to the state computation of current tilt then, then
The process of stabilization is carried out again, so as to obtain the weight of object value in electric cooker.
5. as claimed in claim 4 by being arranged at the Weighing method that the LOAD CELLS of inner pan of electric cooker handle is carried out, its
Be characterised by that if two LOAD CELLSs are respectively connected to the two-way AD detection mouths of SOC, need to do related algorithm to the AD for gathering
Process, i.e., the diversity of the AD values for being gathered according to two-way AD detection mouths, judge the size of handle stress at interior pot two, so as to calculate
Go out current inclined state and then extrapolate horizontality AD value.
6. as claimed in claim 5 by being arranged at the Weighing method that the LOAD CELLS of inner pan of electric cooker handle is carried out, its
It is characterised by that idiographic flow is as follows：
101st, the signal of two-way LOAD CELLS is gathered, AD values are obtained；
102nd, processed using related algorithm；According to the diversity of the AD values of two-way AD detection mouths collection, then contrasting again makes
AD values when being demarcated with specified weight, judge the size of handle stress at interior pot two；
103rd, calculate heeling condition；
104th, the AD values of horizontality are calculated, is exported.
7. as claimed in claim 6 by being arranged at the Weighing method that the LOAD CELLS of inner pan of electric cooker handle is carried out, its
It is characterised by when shake is run into, the handling process of shake is as follows：
201st, initialize, configurable clock generator, intervalometer, I/O port, SD ADC；
202nd, AD values are gathered, and carries out Filtering Processing；
203rd, scan button；
204th, keystroke handling；
205th, judge whether calibrated, be to be shown, otherwise determine whether that electric cooker, whether in laying state, is then
Shown, otherwise carried out next step；
206th, ISN is calculated, and carries out stabilization process；
207th, weight is calculated, and is shown.
8. as claimed in claim 7 by being arranged at the Weighing method that the LOAD CELLS of inner pan of electric cooker handle is carried out, its
In being characterised by the step 202, after collection AD, in order to tackle the shake during use, need to filter using AD with rank
Calculation, calculates correlation filtering value according to filtering correlation formula.
9. as claimed in claim 7 by being arranged at the Weighing method that the LOAD CELLS of inner pan of electric cooker handle is carried out, its
In being characterised by 206 step, it is that filtered AD values are converted into actual weight into certain multiple relation to calculate ISN
Weight interior code value, interior code value is carried out into stabilization process again then.
10. as claimed in claim 9 by being arranged at the Weighing method that the LOAD CELLS of inner pan of electric cooker handle is carried out, its
It is characterised by the stabilization of this programme is processed, the process of stabilization process is divided into three states, respectively：Do not allow to lock shape
State, it is allowed to lock-out state and locked state, the weight result wherein under lock-out state are exactly whole stabilization processing procedure
Result afterwards, in 206 step, the flow process of stabilization process is：
2061st, judge whether current stabilization state has been locked into after stabilization program entry；If locked, perform
The operation of locking：Judge whether weight reaches certain number of times toward same direction change, unlock if reaching state, is not up to
Then continue to terminate stabilization processing procedure；If currently locked, next step is performed；
2062nd, the operation of non-locking is performed, the state of non-locking is divided into permission lock-out state and does not allow lock-out state, each shape
The different operation of state correspondence；
2063rd, locking is determined whether, if allowing locking, performing allows the operating procedure of locking, otherwise performs and does not permit
Perhaps the operating procedure for locking；
The lock step flow process is not allowed to be：Current interior code value and backup value difference are first asked, corresponding operating is done according to difference then, its
In if difference less than relevant temporal parameter is added up if defined threshold, put if time requirement is reached in prescribed limit changes of threshold
Allow lock flag and update relevant parameter；If judging, the equidirectional big variable quantity cumulative time reaches certain hour, and reset phase
Related parameter；
The lock step flow process has been allowed to be：Current interior code value and backup value difference are asked, is updated if difference is less than defined threshold
Backup value and the process of relevant parameter, can show that if operation times reach condition locking weight interior code value juxtaposition enters locking mark
Will；Reset if equidirectional difference reaches condition more than or equal to defined threshold number of times locking relevant parameter, and releasing allows locking
State；
Described locking, is to fix interior code value, and interior code value just can draw gravimetric value again after conversion, can subsequently show
Weight of object value in pot.
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| CN201611113455.XA CN106546315B (en) | 2016-12-06 | 2016-12-06 | Weighing sensor circuit arranged on inner pot handle of electric cooker and weighing method |
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| CN106546315B CN106546315B (en) | 2022-07-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018110125A1 (en) * | 2018-04-26 | 2019-10-31 | Miele & Cie. Kg | Food and / or liquid preparation device with a scale |
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| CN206353052U (en) * | 2016-12-06 | 2017-07-25 | 芯海科技（深圳）股份有限公司 | A kind of weighing sensor circuit for being arranged at inner pan of electric cooker handle |
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| CN101876565A (en) * | 2009-04-28 | 2010-11-03 | 伊利诺斯工具制品有限公司 | Weighing method and equipment |
| CN202404470U (en) * | 2011-12-29 | 2012-08-29 | 深圳市芯海科技有限公司 | Power management circuit and electronic body scale |
| CN203263023U (en) * | 2013-05-07 | 2013-11-06 | 周鲁 | Electric cooker |
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| CN206353052U (en) * | 2016-12-06 | 2017-07-25 | 芯海科技（深圳）股份有限公司 | A kind of weighing sensor circuit for being arranged at inner pan of electric cooker handle |
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| CN106546315B (en) | 2022-07-26 |
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