CN106676831A - Washing machine door lock state detecting method and system and washing machine - Google Patents
Washing machine door lock state detecting method and system and washing machine Download PDFInfo
- Publication number
- CN106676831A CN106676831A CN201510767157.1A CN201510767157A CN106676831A CN 106676831 A CN106676831 A CN 106676831A CN 201510767157 A CN201510767157 A CN 201510767157A CN 106676831 A CN106676831 A CN 106676831A
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- Prior art keywords
- door lock
- mean value
- power supply
- washing machine
- signal
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
-
- D06F2224/00—
Abstract
The invention discloses a washing machine door lock state detecting method and system and a washing machine. The method includes the following steps: in predetermined detection time, reading multiple door lock signals and multiple power supply signals, conducting analog-to-digital conversion on the door lock signals and the power supply signals respectively; calculating the average value of the door lock signals and the average value of the power supply signals after the analog-to-digital conversion; according to the average value of the door lock signals and the average value of the power supply signals, judging the current door lock state, wherein the door lock state includes the opening state and the closing state. According to the washing machine door lock state detecting method, the accuracy of the door lock state detection can be improved.
Description
Technical field
The present invention relates to household electrical appliance technical field, the door lock state detection method of more particularly to a kind of washing machine, system and wash
Clothing machine.
Background technology
In roller washing machine, many control logics are directed to door lock state.For example, some washing machines can be in door lock shape
Control washing machine stops dehydration when state is opening；When door lock state is closed mode, presses pause button and preset
Door lock state can be allowed after time to be changed to opening.Therefore, the door lock state detection of washing machine is particularly important.
At present, for the detection of door of washing machine lock status is only realized by the detection to door lock signal mostly.Usually, exist
When door lock is opened, there is no voltage at door lock signal detection, when door lock is closed, door lock signal detection occurs voltage.Therefore,
Can judge that door lock state is closed mode when door lock signal is high voltage signal, otherwise, judge door lock state to open shape
State.
However, washing machine is used in a humid environment mostly, the insulation shape of the shell of its grounded parts such as heating tube and motor
State can decline, and when live wire and the zero line reversal connection of household electricity, may produce between the shell of grounded parts and the live wire of circuit board
Motional electromotive force, the electromotive force is less compared with civil power, and when civil power is 220V, the electromotive force is generally 120V or so, therefore can
It is called empty electricity.Affected by empty electricity, even if when door lock state is opening, being also possible to out at door lock signal detection
Existing high voltage signal.Is there is mistake by this in the detection for causing door lock state.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.For this purpose, one of the present invention
Purpose is the door lock state detection method for proposing a kind of washing machine, it is possible to increase the accuracy of door lock state detection.
Second object of the present invention is the door lock state detecting system for proposing a kind of washing machine.
Third object of the present invention is to propose a kind of washing machine.
According to a first aspect of the present invention the door lock state detection method of the washing machine of embodiment, comprises the following steps：Predetermined
In detection time, multiple door lock signals and multiple power supply signals are read；Respectively by the plurality of door lock signal and the plurality of electricity
Source signal carries out analog-to-digital conversion；Calculate the mean value and the plurality of power supply signal of the plurality of door lock signal after analog-to-digital conversion
Mean value；Current door lock is judged according to the mean value of the plurality of door lock signal and the mean value of the plurality of power supply signal
State, wherein, the door lock state includes opening and closed mode.
The door lock state detection method of washing machine according to embodiments of the present invention, multiple door lock signals after acquisition analog-to-digital conversion
Mean value and multiple power supply signals mean value, and the mean value according to multiple door lock signals and multiple power supply signals is average
Value judges current door lock state, and door lock state is mistakenly judged because of the impact of empty electricity thereby, it is possible to be prevented effectively from, so as to
The accuracy of door lock state detection is improve, meanwhile, this method logic is simple and is easier to realize.
In addition, the door lock state detection method of washing machine according to the above embodiment of the present invention can also have following additional skill
Art feature：
According to one embodiment of present invention, the mean value and the plurality of power supply signal according to the plurality of door lock signal
Mean value judge current door lock state, further include：The mean value of the plurality of door lock signal of comparison and the plurality of
The mean value of power supply signal；If the difference of the mean value of the mean value of the plurality of power supply signal and the plurality of door lock signal
Absolute value is less than predetermined difference value, then judge the door lock state as opening；If the mean value of the plurality of power supply signal
And the absolute value of the difference of the mean value of the plurality of door lock signal is more than or equal to the predetermined difference value, then judge the door lock shape
State is closed mode.
According to one embodiment of present invention, the predetermined detection time is 100 milliseconds.
The door lock state detecting system of the washing machine of embodiment according to a second aspect of the present invention, including：Acquisition module, for
In predetermined detection time, multiple door lock signals and multiple power supply signals are read；Analog-to-digital conversion module, for respectively will be described
Multiple door lock signals and the plurality of power supply signal carry out analog-to-digital conversion；Computing module, for calculating analog-to-digital conversion after described in
The mean value of the mean value of multiple door lock signals and the plurality of power supply signal；Judge module, for according to the plurality of door lock
The mean value of the mean value of signal and the plurality of power supply signal judges current door lock state, wherein, the door lock state bag
Include opening and closed mode.
The door lock state detecting system of washing machine according to embodiments of the present invention, multiple door lock signals after acquisition analog-to-digital conversion
Mean value and multiple power supply signals mean value, and the mean value according to multiple door lock signals and multiple power supply signals is average
Value judges current door lock state, and door lock state is mistakenly judged because of the impact of empty electricity thereby, it is possible to be prevented effectively from, so as to
The accuracy of door lock state detection is improve, meanwhile, the system logic is simple and is easier to realize.
In addition, the door lock state detecting system of washing machine according to the above embodiment of the present invention can also have following additional skill
Art feature：
According to one embodiment of present invention, the judge module is used for：The mean value of the plurality of door lock signal of comparison and institute
State the mean value of multiple power supply signals；If the mean value of the mean value of the plurality of power supply signal and the plurality of door lock signal
Difference absolute value be less than predetermined difference value, then judge the door lock state as opening；If the plurality of power supply signal
The absolute value of the difference of the mean value of mean value and the plurality of door lock signal is more than or equal to the predetermined difference value, then judge described
Door lock state is closed mode.
According to one embodiment of present invention, the predetermined detection time is 100 milliseconds.
The washing machine of embodiment according to a third aspect of the present invention, including the door of the washing machine of embodiment according to a second aspect of the present invention
Lock status detecting system.
Washing machine according to embodiments of the present invention, the mean value and multiple power supplys of multiple door lock signals after acquisition analog-to-digital conversion
The mean value of signal, and the mean value of the mean value according to multiple door lock signals and multiple power supply signals judges current door lock shape
State, mistakenly judges door lock state, so as to improve door lock state detection thereby, it is possible to be prevented effectively from because of the impact of empty electricity
Accuracy.
Description of the drawings
Fig. 1 is the flow chart of the door lock state detection method of the washing machine according to one embodiment of the invention；
Fig. 2 is the schematic diagram that the door lock state of the washing machine according to one embodiment of the invention detects circuit；
Fig. 3 is the structured flowchart of the door lock state detecting system of the washing machine according to one embodiment of the invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein identical from start to finish
Or similar label represents same or similar element or the element with same or like function.Retouch below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Door lock state detection method, system and the washing machine of the washing machine of the embodiment of the present invention are described below in conjunction with the accompanying drawings.
Fig. 1 is the flow chart of the door lock state detection method of the washing machine according to one embodiment of the invention.
In an embodiment of the present invention, washing machine is preferably roller washing machine.
As shown in figure 1, the door lock state detection method of the washing machine of the embodiment of the present invention, comprises the following steps：
S101, in predetermined detection time, reads multiple door lock signals and multiple power supply signals.
Wherein, predetermined detection time can be 100 milliseconds.In one embodiment of the invention, can read in 100 milliseconds
Take 10 door lock signals and 10 power supply signals.
Multiple door lock signals and multiple power supply signals are carried out analog-to-digital conversion by S102 respectively.
In one embodiment of the invention, door lock signal and power supply can respectively be obtained by the Test terminals of circuit shown in Fig. 2
The data signal of signal.As shown in Fig. 2 the circuit is only capable of achieving by the connection of some resistance, electric capacity and diode,
Compared with detection circuit mostly, simple structure, cost is relatively low.
S103, calculates the mean value and the mean value of multiple power supply signals of the multiple door lock signals after analog-to-digital conversion.
S104, according to the mean value of multiple door lock signals and the mean value of multiple power supply signals current door lock state is judged, its
In, door lock state includes opening and closed mode.
It should be appreciated that power supply signal is metastable, it is assumed that the digital quantity at power supply signal crest is 1, the numeral at trough
Measure as -1, then the mean value of multiple power supply signals accessible 0.And when door lock state is closed mode, door lock signal may occur in which
High level signal, the digital quantity of the high level signal can be 1, therefore the mean value of multiple door lock signals and multiple power supply signals
Mean value difference it is larger；When door lock state is opening, usually, door lock signal is low level signal, even if
There is empty electricity, the value of door lock signal is also less, therefore the mean value of door lock signal is also close to 0, the mean value of door lock signal with
The difference of the mean value of power supply signal is less.
Therefore, in one embodiment of the invention, may compare the mean value of multiple door lock signals and putting down for multiple power supply signals
Average, if the absolute value of the difference of the mean value of the mean value of multiple power supply signals and multiple door lock signals is less than predetermined difference value,
Then judge that door lock state is opening；If the difference of the mean value of the mean value of multiple power supply signals and multiple door lock signals
Absolute value is more than or equal to predetermined difference value, then judge that door lock state is closed mode.Wherein, predetermined difference value can be according to power supply mark
The size of accurate and set digital quantity and set, here is not limited to concrete numerical value.
The door lock state detection method of washing machine according to embodiments of the present invention, multiple door lock signals after acquisition analog-to-digital conversion
Mean value and multiple power supply signals mean value, and the mean value according to multiple door lock signals and multiple power supply signals is average
Value judges current door lock state, and door lock state is mistakenly judged because of the impact of empty electricity thereby, it is possible to be prevented effectively from, so as to
The accuracy of door lock state detection is improve, meanwhile, this method logic is simple and is easier to realize.
To realize above-described embodiment, the present invention also proposes a kind of door lock state detecting system of washing machine.
Fig. 3 is the structured flowchart of the door lock state detecting system of the washing machine according to one embodiment of the invention.
As shown in figure 3, the door lock state detecting system of the washing machine of the embodiment of the present invention, including：Acquisition module 10, modulus
Modular converter 20, computing module 30 and judge module 40.
Wherein, acquisition module 10 is used in predetermined detection time, reads multiple door lock signals and multiple power supply signals.
Wherein, predetermined detection time can be 100 milliseconds.In one embodiment of the invention, can read in 100 milliseconds
Take 10 door lock signals and 10 power supply signals.
Analog-to-digital conversion module 20 is used to respectively multiple door lock signals and multiple power supply signals are carried out into analog-to-digital conversion.
In one embodiment of the invention, door lock signal and power supply can respectively be obtained by the Test terminals of circuit shown in Fig. 2
The data signal of signal.As shown in Fig. 2 the circuit is only capable of achieving by the connection of some resistance, electric capacity and diode,
Compared with detection circuit mostly, simple structure, cost is relatively low.
Computing module 30 is used to calculate the mean value of the multiple door lock signals after analog-to-digital conversion and the mean value of multiple power supply signals.
Judge module 40 is used to judge current door lock according to the mean value of multiple door lock signals and the mean value of multiple power supply signals
State, wherein, door lock state includes opening and closed mode.
It should be appreciated that power supply signal is metastable, it is assumed that the digital quantity at power supply signal crest is 1, the numeral at trough
Measure as -1, then the mean value of multiple power supply signals accessible 0.And when door lock state is closed mode, door lock signal may occur in which
High level signal, the digital quantity of the high level signal can be 1, therefore the mean value of multiple door lock signals and multiple power supply signals
Mean value difference it is larger；When door lock state is opening, usually, door lock signal is low level signal, even if
There is empty electricity, the value of door lock signal is also less, therefore the mean value of door lock signal is also close to 0, the mean value of door lock signal with
The difference of the mean value of power supply signal is less.
Therefore, in one embodiment of the invention, judge module 40 can be specifically for：Compare the average of multiple door lock signals
The mean value of value and multiple power supply signals, if the difference of the mean value of the mean value of multiple power supply signals and multiple door lock signals
Absolute value is less than predetermined difference value, then judge that door lock state is opening；If the mean value of multiple power supply signals and multiple doors
The absolute value of the difference of the mean value of lock signal is more than or equal to predetermined difference value, then judge that door lock state is closed mode.Wherein,
Predetermined difference value can set according to the size of power standard and set digital quantity, and here is not limited to concrete numerical value.
The door lock state detecting system of washing machine according to embodiments of the present invention, multiple door lock signals after acquisition analog-to-digital conversion
Mean value and multiple power supply signals mean value, and the mean value according to multiple door lock signals and multiple power supply signals is average
Value judges current door lock state, and door lock state is mistakenly judged because of the impact of empty electricity thereby, it is possible to be prevented effectively from, so as to
The accuracy of door lock state detection is improve, meanwhile, the system logic is simple and is easier to realize.
Correspondence above-described embodiment, the present invention also proposes a kind of washing machine.
Wherein, the washing machine of the embodiment of the present invention can be roller washing machine.
The washing machine of the embodiment of the present invention, including the door lock state detecting system of the washing machine of the above embodiment of the present invention.Its tool
The embodiment of body can refer to above-described embodiment, will not be described here.
Washing machine according to embodiments of the present invention, the mean value and multiple power supplys of multiple door lock signals after acquisition analog-to-digital conversion
The mean value of signal, and the mean value of the mean value according to multiple door lock signals and multiple power supply signals judges current door lock shape
State, mistakenly judges door lock state, so as to improve door lock state detection thereby, it is possible to be prevented effectively from because of the impact of empty electricity
Accuracy.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ",
The orientation or position relationship of the instruction such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " is based on shown in the drawings
Orientation or position relationship, be for only for ease of description the present invention and simplify description, rather than indicate or imply indication device or
Element with specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " be only used for describe purpose, and it is not intended that indicate or imply relative importance or
The implicit quantity for indicating indicated technical characteristic.Thus, " first " is defined, the feature of " second " can be expressed or hidden
Include one or more this feature containing ground.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the art such as term " installation ", " connected ", " connection ", " fixation "
Language should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or it is integral；Can be machinery
Connection, or electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two units
The interaction relationship of connection or two elements inside part.For the ordinary skill in the art, can be according to tool
Body situation understands above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be
First and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below "
Can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second
Feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specific example ",
Or the description of " some examples " etc. means to combine specific features, structure, material or feature bag that the embodiment or example are described
In being contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term necessarily
It is directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be arbitrary
Combine in an appropriate manner in individual or multiple embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be combined the feature of the different embodiments or example described in this specification and different embodiments or example
And combination.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment be it is exemplary,
It is not considered as limiting the invention, one of ordinary skill in the art within the scope of the invention can be to above-described embodiment
It is changed, changes, replacing and modification.
Claims (8)
1. the door lock state detection method of a kind of washing machine, it is characterised in that comprise the following steps：
In predetermined detection time, multiple door lock signals and multiple power supply signals are read；
Respectively the plurality of door lock signal and the plurality of power supply signal are carried out into analog-to-digital conversion；
Calculate the mean value and the mean value of the plurality of power supply signal of the plurality of door lock signal after analog-to-digital conversion；
Current door lock state is judged according to the mean value of the plurality of door lock signal and the mean value of the plurality of power supply signal,
Wherein, the door lock state includes opening and closed mode.
2. the door lock state detection method of washing machine according to claim 1, it is characterised in that described according to described many
The mean value of the mean value of individual door lock signal and the plurality of power supply signal judges current door lock state, further includes：
The mean value of the plurality of door lock signal of comparison and the mean value of the plurality of power supply signal；
If the absolute value of the difference of the mean value of the mean value of the plurality of power supply signal and the plurality of door lock signal is less than predetermined
Difference, then judge the door lock state as opening；
If the absolute value of the difference of the mean value of the mean value of the plurality of power supply signal and the plurality of door lock signal is more than or waits
In the predetermined difference value, then judge the door lock state as closed mode.
3. the door lock state detection method of washing machine according to claim 1 and 2, it is characterised in that described predetermined
Detection time is 100 milliseconds.
4. the door lock state detecting system of a kind of washing machine, it is characterised in that include：
Acquisition module, in predetermined detection time, reading multiple door lock signals and multiple power supply signals；
Analog-to-digital conversion module, for respectively the plurality of door lock signal and the plurality of power supply signal being carried out into analog-to-digital conversion；
Computing module, for calculating analog-to-digital conversion after the plurality of door lock signal mean value and the plurality of power supply signal
Mean value；
Judge module, for being judged to work as according to the mean value of the mean value of the plurality of door lock signal and the plurality of power supply signal
Front door lock state, wherein, the door lock state includes opening and closed mode.
5. the door lock state detecting system of washing machine according to claim 4, it is characterised in that the judge module is used
In：
The mean value of the plurality of door lock signal of comparison and the mean value of the plurality of power supply signal；
If the absolute value of the difference of the mean value of the mean value of the plurality of power supply signal and the plurality of door lock signal is less than predetermined
Difference, then judge the door lock state as opening；
If the absolute value of the difference of the mean value of the mean value of the plurality of power supply signal and the plurality of door lock signal is more than or waits
In the predetermined difference value, then judge the door lock state as closed mode.
6. the door lock state detecting system of the washing machine according to claim 4 or 5, it is characterised in that described predetermined
Detection time is 100 milliseconds.
7. a kind of washing machine, it is characterised in that include：The door lock shape of the washing machine according to any one of claim 4-6
State detecting system.
8. washing machine according to claim 7, it is characterised in that the washing machine is roller washing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510767157.1A CN106676831B (en) | 2015-11-11 | 2015-11-11 | Door lock state detection method, system and the washing machine of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510767157.1A CN106676831B (en) | 2015-11-11 | 2015-11-11 | Door lock state detection method, system and the washing machine of washing machine |
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| Publication Number | Publication Date |
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| CN106676831A true CN106676831A (en) | 2017-05-17 |
| CN106676831B CN106676831B (en) | 2019-04-16 |
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ID=58865160
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510767157.1A Active CN106676831B (en) | 2015-11-11 | 2015-11-11 | Door lock state detection method, system and the washing machine of washing machine |
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| CN107187419A (en) * | 2017-05-18 | 2017-09-22 | 鞍山科大物联科技有限公司 | A kind of automobile door lock status identification means and recognition methods |
| CN109879134A (en) * | 2019-04-09 | 2019-06-14 | 深圳市海浦蒙特科技有限公司 | A kind of high pressure door lock detection circuit and method |
| CN110021095A (en) * | 2018-10-29 | 2019-07-16 | 深圳市微开互联科技有限公司 | Detect system, door controller, server and the method for door state |
| CN110021094A (en) * | 2018-10-29 | 2019-07-16 | 深圳市微开互联科技有限公司 | The door controller and server and method of detection door state |
| CN113311270A (en) * | 2021-05-28 | 2021-08-27 | Tcl家用电器（合肥）有限公司 | Monitoring method and detection circuit of household appliance |
| CN114990842A (en) * | 2022-06-30 | 2022-09-02 | 南京创维电器研究院有限公司 | Door switch detection method of drum washing machine |
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| CN113311270A (en) * | 2021-05-28 | 2021-08-27 | Tcl家用电器（合肥）有限公司 | Monitoring method and detection circuit of household appliance |
| CN114990842A (en) * | 2022-06-30 | 2022-09-02 | 南京创维电器研究院有限公司 | Door switch detection method of drum washing machine |
| CN114990842B (en) * | 2022-06-30 | 2024-03-26 | 南京创维电器研究院有限公司 | Door switch detection method for drum washing machine |
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Effective date of registration: 20190813 Address after: 214028 No. 18 Changjiang South Road, Wuxi National High-tech Development Zone, Jiangsu Province Patentee after: Wuxi Swan Electrical Appliances Co., Ltd. Address before: 214028 Wuxi Changjiang Road, Wuxi New District, Jiangsu, No. 18 Patentee before: Wuxi Xiaotianer Co., Ltd. |