CN103015123B - Method for judging functions of washing machine by utilizing LED (light emitting diode) scanning circuit - Google Patents
Method for judging functions of washing machine by utilizing LED (light emitting diode) scanning circuit Download PDFInfo
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- CN103015123B CN103015123B CN201210577573.1A CN201210577573A CN103015123B CN 103015123 B CN103015123 B CN 103015123B CN 201210577573 A CN201210577573 A CN 201210577573A CN 103015123 B CN103015123 B CN 103015123B
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Abstract
The invention relates to a method for judging the functions of a washing machine by utilizing an LED (light emitting diode) scanning circuit. The method comprises the following steps of: powering on the computer panel of the washing machine, setting the LED scanning circuit as a detection mode by a computer panel MCU (microprogrammed control unit) in a certain time quantum, detecting whether a to-be-detected LED function indication lamp exists or not on the computer panel, after detection, if the computer panel is provided with the to-be-detected LED function indication lamp, the washing machine is proved to be provided with the function, a computer panel controller MCU operates according to the function, and otherwise the computer panel controller MCU operates according to a mode without the function; and after finishing detection, setting the LED scanning circuit as a display mode by the computer panel controller MCU. Aiming to washing machines with different functions, only one kind of program is needed to be developed by the computer panel controller MCU, during manufacture in a factory, only the same kind of program is needed to be programmed on the computer panel controller MCU, the production efficiency can be greatly improved, and errors are avoided.
Description
Technical field
The present invention relates to washing machine technology field, the especially a kind of LED of utilization scanning circuit judges the method for washing machine function.
Background technology
Present washing machine is except the most basic washing, dehydrating function, with many additional functions, such as ultrasonic, variable-speed washing, cold and hot water inlet etc., and due to the difference of function, program in computer board controller MCU is different, therefore needs to develop different programs, when plant produced, need the program different to computer board controller MCU programming, comparatively complicated.
Summary of the invention
The object of the present invention is to provide and a kind ofly automatically the LED function indicator lamp on computer board to be detected by LED scanning circuit, judge whether this type has corresponding function, program makes the control of corresponding function more according to this, and the LED scanning circuit that utilizes realizing program compatibility judges the method for washing machine function.
For achieving the above object, present invention employs following technical scheme: a kind of LED of utilization scanning circuit judges the method for washing machine function, the method comprises the step of following order:
(1) computer board of washing machine powers on, LED scanning circuit is set to detecting pattern by computer board controller MCU in certain hour section, detect with or without LED function indicator lamp to be detected on computer board, if after testing, computer board is provided with LED function indicator lamp to be detected, then represent that washing machine is with the function indicated by this LED function indicator lamp, computer board controller MCU is according to this feature operation, otherwise computer board controller MCU is according to without this feature operation;
(2) after having detected, LED scanning circuit is set to display mode by computer board controller MCU, and each LED function indicator lamp that LED scanning circuit is installed normally shows.
Under LED scanning circuit is set to detecting pattern, by need detect LED function indicator lamp the port corresponding to computer board controller MCU of being expert at be set to input port, the control signal of this LED function indicator lamp column is set to high level simultaneously, judge whether computer board controller MCU input port is high level, and to it for high level lasting time carries out timing, if computer board controller MCU input port is high level and high level lasting time is greater than the scheduled time, show that computer board is equipped with this LED function indicator lamp, be defaulted as with this function, otherwise, show that computer board is without this LED function indicator lamp, be defaulted as without this function.
Described certain hour section is 100ms.
Described LED scanning circuit is rank scanning circuit, and each row control signal, each row control signal are by the corresponding port controlling of computer board controller MCU, and any one LED function indicator lamp is all arranged in certain a line of a certain row.
The described scheduled time is 60ms.
For LED function indicator lamp to be detected, need by its port corresponding to computer board controller MCU of being expert at pass through capacity earth.
As shown from the above technical solution, computer board controller MCU in the present invention detects in LED scanning circuit whether be provided with corresponding LED function indicator lamp when computer board powers on, judge whether this type has corresponding function, the program of computer board controller MCU makes the control whether having corresponding function more according to this.By this kind of method, for the loom of difference in functionality, computer board controller MCU just can use same program, that is, only need to develop a kind of program, only need when plant produced, to computer board controller MCU programming same program, greatly to enhance productivity and avoid makeing mistakes.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of LED scanning circuit in the present invention;
Fig. 2 is workflow diagram of the present invention.
Detailed description of the invention
A kind of LED of utilization scanning circuit 1 judges the method for washing machine function, the method comprises the step of following order: (1) computer board of washing machine powers on, LED scanning circuit 1 is set to detecting pattern by computer board controller MCU in certain hour section, described certain hour section is 100ms, detect with or without LED function indicator lamp to be detected on computer board, if after testing, computer board is provided with LED function indicator lamp to be detected, then represent that washing machine is with the function indicated by this LED function indicator lamp, computer board controller MCU is according to this feature operation, otherwise, computer board controller MCU is according to without this feature operation, (2) after having detected, LED scanning circuit 1 is set to display mode by computer board controller MCU, and each LED function indicator lamp that LED scanning circuit 1 is installed normally shows.As shown in Figure 2.
As shown in Figure 2, under LED scanning circuit 1 is set to detecting pattern, by need detect LED function indicator lamp the port corresponding to computer board controller MCU of being expert at be set to input port, the control signal of this LED function indicator lamp column is set to high level simultaneously, judge whether computer board controller MCU input port is high level, and to it for high level lasting time carries out timing, if computer board controller MCU input port is high level and high level lasting time is greater than the scheduled time, the described scheduled time is 60ms, show that computer board is equipped with this LED function indicator lamp, be defaulted as with this function, otherwise, show that computer board is without this LED function indicator lamp, be defaulted as without this function.
As shown in Figure 1, described LED scanning circuit 1 is rank scanning circuit, each row control signal, each row control signal are by the corresponding port controlling of computer board controller MCU, and any one LED function indicator lamp is all arranged in certain a line of a certain row.For LED function indicator lamp to be detected, need by its port corresponding to computer board controller MCU of being expert at pass through capacity earth.
As in Fig. 1, to LED6, namely to when detecting with or without WARM heating function, before detection, need the P42 pin with computer board controller MCU by electric capacity C1 ground connection.Can ensure that this test point is in non-vacant state when detecting LED function indicator lamp by capacity earth, voltage is a determined value.If do not have this lamp of LED6, then disconnect, that is, whether have this lamp of LED6, the position of this lamp of LED6 is constant, and the position of LED6 is reserved herein.LED451 in Fig. 1 is the charactron for displaying time.
In sum, computer board controller MCU in the present invention detects in LED scanning circuit 1 whether be provided with corresponding LED function indicator lamp when computer board powers on, judge whether this type has corresponding function, the program of computer board controller MCU makes the control whether having corresponding function more according to this.By this kind of method, for the loom of difference in functionality, computer board controller MCU just can use same program, that is, only need to develop a kind of program, only need when plant produced, to computer board controller MCU programming same program, greatly to enhance productivity and avoid makeing mistakes.
Claims (6)
1. utilize LED scanning circuit to judge a method for washing machine function, the method comprises the step of following order:
(1) computer board of washing machine powers on, LED scanning circuit is set to detecting pattern by computer board controller MCU in certain hour section, detect with or without LED function indicator lamp to be detected on computer board, if after testing, computer board is provided with LED function indicator lamp to be detected, then represent that washing machine is with the function indicated by this LED function indicator lamp, computer board controller MCU is according to this feature operation, otherwise computer board controller MCU is according to without this feature operation;
(2) after having detected, LED scanning circuit is set to display mode by computer board controller MCU, and each LED function indicator lamp that LED scanning circuit is installed normally shows.
2. the LED of utilization scanning circuit according to claim 1 judges the method for washing machine function, it is characterized in that: under LED scanning circuit is set to detecting pattern, by need detect LED function indicator lamp the port corresponding to computer board controller MCU of being expert at be set to input port, the control signal of this LED function indicator lamp column is set to high level simultaneously, judge whether computer board controller MCU input port is high level, and to it for high level lasting time carries out timing, if computer board controller MCU input port is high level and high level lasting time is greater than the scheduled time, show that computer board is equipped with this LED function indicator lamp, be defaulted as with this function, otherwise, show that computer board is without this LED function indicator lamp, be defaulted as without this function.
3. the LED of utilization scanning circuit according to claim 1 judges the method for washing machine function, it is characterized in that: described certain hour section is 100ms.
4. the LED of utilization scanning circuit according to claim 2 judges the method for washing machine function, it is characterized in that: described LED scanning circuit is rank scanning circuit, each row control signal, each row control signal are by the corresponding port controlling of computer board controller MCU, and any one LED function indicator lamp is all arranged in certain a line of a certain row.
5. the LED of utilization scanning circuit according to claim 2 judges the method for washing machine function, it is characterized in that: the described scheduled time is 60ms.
6. the LED of utilization scanning circuit according to claim 2 judges the method for washing machine function, it is characterized in that: for LED function indicator lamp to be detected, need by its port corresponding to computer board controller MCU of being expert at pass through capacity earth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577573.1A CN103015123B (en) | 2012-12-27 | 2012-12-27 | Method for judging functions of washing machine by utilizing LED (light emitting diode) scanning circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577573.1A CN103015123B (en) | 2012-12-27 | 2012-12-27 | Method for judging functions of washing machine by utilizing LED (light emitting diode) scanning circuit |
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| CN103015123A CN103015123A (en) | 2013-04-03 |
| CN103015123B true CN103015123B (en) | 2015-01-07 |
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| CN201210577573.1A Active CN103015123B (en) | 2012-12-27 | 2012-12-27 | Method for judging functions of washing machine by utilizing LED (light emitting diode) scanning circuit |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4372054A (en) * | 1981-02-02 | 1983-02-08 | Emhart Industries, Inc. | Method and means for programming the operation of an apparatus |
| JP3053967B2 (en) * | 1992-06-24 | 2000-06-19 | 株式会社東芝 | Laundry equipment |
| IL107409A (en) * | 1992-10-30 | 1999-03-12 | Gen Electric | Appliance electronic control system with programmable parameters including programmable and reconfigurable fuzzy logic controller |
| KR0179255B1 (en) * | 1996-02-22 | 1999-05-15 | 구자홍 | Apparatus and method for dehydration of a washing machine |
| DE102004057007B4 (en) * | 2003-12-23 | 2020-03-19 | BSH Hausgeräte GmbH | Household appliance with programmable control module |
| EP2192350A1 (en) * | 2008-11-15 | 2010-06-02 | Electrolux Home Products Corporation N.V. | A control panel for controlling several different functions of an appliance |
| CN201530933U (en) * | 2009-09-07 | 2010-07-21 | 海尔集团公司 | Washing machine computer board compatible with various programs |
| CN102031663B (en) * | 2009-09-29 | 2014-09-03 | 海尔集团公司 | Method for realizing compatibility of computer board of washing machine with multiple programs |
| CN202424693U (en) * | 2011-12-15 | 2012-09-05 | 蚌埠依爱消防电子有限责任公司 | Display scanning circuit of time sharing multiplex keyboard for fire alarm controller |
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Owner name: WHIRLPOOL (CHINA) CO., LTD. Free format text: FORMER NAME: HEFEI RONGSHIDA SANYO ELECTRIC CO., LTD. |
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Address after: 230088 No. 96 science Avenue, hi tech Zone, Anhui, Hefei Patentee after: Whirlpool (China) Limited by Share Ltd Address before: 230088 No. 96 science Avenue, hi tech Zone, Anhui, Hefei Patentee before: Hefei Rongshida Sanyo Electric Co., Ltd. |