CN103015123A - 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 PDF

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Publication number
CN103015123A
CN103015123A CN2012105775731A CN201210577573A CN103015123A CN 103015123 A CN103015123 A CN 103015123A CN 2012105775731 A CN2012105775731 A CN 2012105775731A CN 201210577573 A CN201210577573 A CN 201210577573A CN 103015123 A CN103015123 A CN 103015123A
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China
Prior art keywords
led
scanning circuit
computer board
function
controller mcu
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CN2012105775731A
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Chinese (zh)
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CN103015123B (en
Inventor
金友华
杨宇澄
金乃庆
丁杰杰
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Whirlpool China Co Ltd
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Hefei Rongshida Sanyo Electric Co Ltd
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Priority to CN201210577573.1A priority Critical patent/CN103015123B/en
Publication of CN103015123A publication Critical patent/CN103015123A/en
Application granted granted Critical
Publication of CN103015123B publication Critical patent/CN103015123B/en
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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

A kind of method of utilizing the LED scanning circuit to judge the washing machine function
Technical field
The present invention relates to the washing machine technical field, especially a kind of method of utilizing the LED scanning circuit to judge the 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 because the difference of function, program among the computer board controller MCU is different, therefore needs the different program of exploitation, when plant produced, need to be to the different program of 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 the computer board is detected by the LED scanning circuit, judge this type whether corresponding function is arranged, program is made the control of corresponding function more according to this, realizes that the LED scanning circuit that utilizes of program compatibility is judged the method for washing machine function.
For achieving the above object, the present invention has adopted following technical scheme: a kind of LED of utilization scanning circuit is judged the method for washing machine function, and the method comprises the step of following order:
(1) computer board of washing machine powers on, computer board controller MCU is set to detecting pattern with the LED scanning circuit in the certain hour section, to having or not led function indicator lamp to be detected to detect on the computer board, if after testing, computer board is equipped with led function indicator lamp to be detected, then represents washing machine with the indicated function of this led function indicator lamp, and computer board controller MCU is according to this feature operation, otherwise computer board controller MCU is according to without this feature operation;
(2) after detection was finished, computer board controller MCU was set to display mode with the LED scanning circuit, and each led function indicator lamp of installing on the LED scanning circuit normally shows.
Be set under the detecting pattern at the LED scanning circuit, the led function indicator lamp that needs the are detected port that corresponds to computer board controller MCU of being expert at is set to the input port, control signal with this led function indicator lamp column is set to high level simultaneously, judge whether computer board controller MCU input port is high level, and it is carried out timing for high level lasting time, if computer board controller MCU input port is that high level and high level lasting time are 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 without this led function indicator lamp, is defaulted as without this function.
Described certain hour section is 100ms.
Described LED scanning circuit is the 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 all is arranged in certain delegation of a certain row.
Described preheating setting time is 60ms.
For led function indicator lamp to be detected, the port that corresponds to computer board controller MCU of it need to being expert at passes through capacity earth.
As shown from the above technical solution, computer board controller MCU among the present invention detects when computer board powers on whether corresponding led function indicator lamp is installed in the LED scanning circuit, whether have corresponding function, the program of computer board controller MCU is made the control whether corresponding function is arranged again according to this if judging this type.With this kind method, for the loom of difference in functionality, computer board controller MCU just can use same program, that is to say, only need a kind of program of exploitation, when plant produced, only need to computer board controller MCU programming same program, can greatly enhance productivity and avoid makeing mistakes.
Description of drawings
Fig. 1 is the circuit theory diagrams of LED scanning circuit among the present invention;
Fig. 2 is workflow diagram of the present invention.
The specific embodiment
A kind of method of utilizing LED scanning circuit 1 to judge the washing machine function, the method comprises the step of following order: (1) computer board of washing machine powers on, computer board controller MCU is set to detecting pattern with LED scanning circuit 1 in the certain hour section, described certain hour section is 100ms, to having or not led function indicator lamp to be detected to detect on the computer board, if after testing, computer board is equipped with led function indicator lamp to be detected, represent that then washing machine is with the indicated function of 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 detection was finished, computer board controller MCU was set to display mode with LED scanning circuit 1, and each led function indicator lamp of installing on the LED scanning circuit 1 normally shows.As shown in Figure 2.
As shown in Figure 2, be set under the detecting pattern at LED scanning circuit 1, the led function indicator lamp that needs the are detected port that corresponds to computer board controller MCU of being expert at is set to the input port, control signal with this led function indicator lamp column is set to high level simultaneously, judge whether computer board controller MCU input port is high level, and it is carried out timing for high level lasting time, if computer board controller MCU input port is that high level and high level lasting time are greater than the scheduled time, described preheating setting 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 without this led function indicator lamp, is defaulted as without this function.
As shown in Figure 1, described LED scanning circuit 1 is the 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 all is arranged in certain delegation of a certain row.For led function indicator lamp to be detected, the port that corresponds to computer board controller MCU of it need to being expert at passes through capacity earth.
In Fig. 1, to LED6, namely when having or not the WARM heating function to detect, before detection, need will with the P42 pin of computer board controller MCU by capacitor C 1 ground connection.Can guarantee that by capacity earth this test point is in non-vacant state when the led function indicator lamp is detected, voltage is a determined value.If there is not this lamp of LED6, then disconnect herein, that is to say whether this lamp of LED6 is arranged, the position of this lamp of LED6 is constant, the position of LED6 is reserved.LED451 among Fig. 1 is for being used for the charactron of displaying time.
In sum, computer board controller MCU among the present invention detects when computer board powers on whether corresponding led function indicator lamp is installed in the LED scanning circuit 1, whether have corresponding function, the program of computer board controller MCU is made the control whether corresponding function is arranged again according to this if judging this type.With this kind method, for the loom of difference in functionality, computer board controller MCU just can use same program, that is to say, only need a kind of program of exploitation, when plant produced, only need to computer board controller MCU programming same program, can greatly enhance productivity and avoid makeing mistakes.

Claims (6)

1. method of utilizing the LED scanning circuit to judge the washing machine function, the method comprises the step of following order:
(1) computer board of washing machine powers on, computer board controller MCU is set to detecting pattern with the LED scanning circuit in the certain hour section, to having or not led function indicator lamp to be detected to detect on the computer board, if after testing, computer board is equipped with led function indicator lamp to be detected, then represents washing machine with the indicated function of this led function indicator lamp, and computer board controller MCU is according to this feature operation, otherwise computer board controller MCU is according to without this feature operation;
(2) after detection was finished, computer board controller MCU was set to display mode with the LED scanning circuit, and each led function indicator lamp of installing on the LED scanning circuit normally shows.
2. the method for utilizing the LED scanning circuit to judge the washing machine function according to claim 1, it is characterized in that: be set under the detecting pattern at the LED scanning circuit, the led function indicator lamp that needs the are detected port that corresponds to computer board controller MCU of being expert at is set to the input port, control signal with this led function indicator lamp column is set to high level simultaneously, judge whether computer board controller MCU input port is high level, and it is carried out timing for high level lasting time, if computer board controller MCU input port is that high level and high level lasting time are 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 without this led function indicator lamp, is defaulted as without this function.
3. the method for utilizing the LED scanning circuit to judge the washing machine function according to claim 1, it is characterized in that: described certain hour section is 100ms.
4. the method for utilizing the LED scanning circuit to judge the washing machine function according to claim 2, it is characterized in that: described LED scanning circuit is the 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 all is arranged in certain delegation of a certain row.
5. the method for utilizing the LED scanning circuit to judge the washing machine function according to claim 2, it is characterized in that: described preheating setting time is 60ms.
6. the method for utilizing the LED scanning circuit to judge the washing machine function according to claim 2, it is characterized in that: for led function indicator lamp to be detected, the port that corresponds to computer board controller MCU of it need to being expert at passes through capacity earth.
CN201210577573.1A 2012-12-27 2012-12-27 Method for judging functions of washing machine by utilizing LED (light emitting diode) scanning circuit Active CN103015123B (en)

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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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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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CN103015123B CN103015123B (en) 2015-01-07

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Citations (9)

* Cited by examiner, † Cited by third party
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
JPH067574A (en) * 1992-06-24 1994-01-18 Toshiba Corp Laundry apparatus
US5619614A (en) * 1992-10-30 1997-04-08 General Electric Company Appliance electronic control system with programmable and reconfigurable fuzzy logic controller
CN1080786C (en) * 1996-02-22 2002-03-13 Lg电子株式会社 Dehydrating apparatus of automatic washing machine and control method thereof
CN1902350A (en) * 2003-12-23 2007-01-24 Bsh博施及西门子家用器具有限公司 Domestic appliance with programmable control module
EP2187132A2 (en) * 2008-11-15 2010-05-19 Electrolux Home Products 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
CN102031663A (en) * 2009-09-29 2011-04-27 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

Patent Citations (9)

* Cited by examiner, † Cited by third party
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
JPH067574A (en) * 1992-06-24 1994-01-18 Toshiba Corp Laundry apparatus
US5619614A (en) * 1992-10-30 1997-04-08 General Electric Company Appliance electronic control system with programmable and reconfigurable fuzzy logic controller
CN1080786C (en) * 1996-02-22 2002-03-13 Lg电子株式会社 Dehydrating apparatus of automatic washing machine and control method thereof
CN1902350A (en) * 2003-12-23 2007-01-24 Bsh博施及西门子家用器具有限公司 Domestic appliance with programmable control module
EP2187132A2 (en) * 2008-11-15 2010-05-19 Electrolux Home Products 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
CN102031663A (en) * 2009-09-29 2011-04-27 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.