WO2016173353A1 - Procédé de traitement et de détection de panne de machine à laver - Google Patents

Procédé de traitement et de détection de panne de machine à laver Download PDF

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Publication number
WO2016173353A1
WO2016173353A1 PCT/CN2016/077510 CN2016077510W WO2016173353A1 WO 2016173353 A1 WO2016173353 A1 WO 2016173353A1 CN 2016077510 W CN2016077510 W CN 2016077510W WO 2016173353 A1 WO2016173353 A1 WO 2016173353A1
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WO
WIPO (PCT)
Prior art keywords
washing machine
value
processing method
register
rom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/077510
Other languages
English (en)
Chinese (zh)
Inventor
杨林
陈瑜
薛凯
方大丰
于亮亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Washing Machine Co Ltd
Original Assignee
Qingdao Haier Washing Machine Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Washing Machine Co Ltd filed Critical Qingdao Haier Washing Machine Co Ltd
Priority to KR1020177033725A priority Critical patent/KR20180013898A/ko
Priority to EP16785784.6A priority patent/EP3290558B1/fr
Priority to JP2017556666A priority patent/JP6697483B2/ja
Priority to US15/570,586 priority patent/US20180135224A1/en
Publication of WO2016173353A1 publication Critical patent/WO2016173353A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/47—Responding to irregular working conditions, e.g. malfunctioning of pumps 
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/52—Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/44—Control of the operating time, e.g. reduction of overall operating time
    • 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/46—Control of the energy or water consumption
    • 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

Definitions

  • the present invention belongs to the technical field of washing machines, and in particular to a washing machine fault detection processing method.
  • the current washing machine software program detection method only performs related processing on the threshold control signal, and uses two 10-port detection gate-off signals, and reads the gate-off signal input port every 10 ms, if it is read for 100 ms continuously. If the input signal is unchanged, the two 10-port signals are assigned to the buffer register after non-calculation. If there is a 10-port detection threshold, it is considered that the door is slamming, and the display panel communicates with the power control board. With the CRC 8-bit check, the display panel receives the threshold or communicates with the power control board for 3 seconds, then the motor is stopped.
  • This method can not detect other faults of the washing machine, such as the motor has been rotating all the way or has been reversed, washing is not stopped; or the dehydration is not limited; or the water is not only the same phenomenon, or the whole machine is in the state of water, washing, dehydration, etc. There is no alarm on the upper cover, there are hidden dangers caused by the user, etc., which causes the above-mentioned faults in the washing machine during the washing process, and the fault is detected without any flaws, and there is a safety hazard.
  • the present invention proposes a washing machine fault detection and processing method, which can solve the above problems.
  • a washing machine fault detection processing method includes the following steps:
  • each running process of the washing machine corresponds to a subroutine, and each of the subprograms is initially assigned a logical register, the running process at least including a water filling process, washing Process, dehydration process;
  • step (13) after the execution system is reset, the current water level value detected by the water level sensor is read, and the current water level value is compared with the set water level value, if the current water level value is greater than or equal to If the water level value is set, the water injection process is skipped and the next process of the water injection process is performed. If the current water level value is zero, the dehydration process is performed.
  • the zero crossing interruption detecting step is further included:
  • comparison ⁇ is within the range of [Tl-Atl, Tl+Atl], and if so, it is determined that the zero-crossing interrupt is normal; otherwise, it is determined that the zero-crossing interrupt is abnormal;
  • the method further includes: determining an interrupt detection step:
  • the washing machine When it is detected that the washing machine is slamming the upper cover during operation, the washing machine does not perform an alarm and/or stops the step of running the current subroutine, it is determined that the interrupt is abnormal and the system reset is performed.
  • the DC fault detection step of the single chip RAM is further included:
  • the value of the test address is saved and the interrupt is closed.
  • one of the values of 0x55 or Oxaa is assigned to the first test address, and another value of 0x55 or Oxaa is assigned to the next test address.
  • the data in the two test addresses are respectively read and compared with the written data. If they are not equal, the RAM is considered to have a problem and the exception processing is performed; if they are equal, the other test addresses are detected in the same manner until all are The test address is detected.
  • the method further includes the step of detecting the fault of the single chip register:
  • the method further includes the step of detecting the ROM, calculating a CRC-16 checksum of the ROM area code, and comparing the calculation structure with a fixed CRC-16 checksum stored in the ROM, if not, I think there is a problem with the ROM and I am doing exception handling.
  • the CRC-16 calculation is performed to obtain a check value, until all the data in the ROM is calculated, and all the ROM areas are obtained. CRC-16 check value.
  • the method further includes the step of processing the special function register: periodically, the configuration register of the function module used by the single chip is repeatedly assigned according to the set value.
  • the washing machine fault detection processing method of the present invention can prevent the internal operation error of the washing machine algorithm, prevent the water from entering, the empty bucket state, the washing, etc.
  • the mode occurs, which ensures the safe operation of the washing machine and reduces the possibility of personal injury caused by the malfunction of the washing machine.
  • FIG. 1 is a flow chart of a PC pointer detecting step in an embodiment of a washing machine failure detecting processing method according to the present invention
  • FIG. 2 is a flow chart of a zero-crossing interruption detecting step in an embodiment of a washing machine failure detecting processing method according to the present invention.
  • PC program counter, the full text referred to as PC
  • RAM random access memory Abbreviation for Random Access Memory, referred to as RAM in full;
  • ROM Read only memory Abbreviation for Read Only Memory, the full text is referred to as ROM;
  • CRC-16 refers to 16-bit cyclic redundancy check code
  • Embodiment 1 provides a washing machine fault detection processing method, including the following steps: [0039] PC pointer detecting step, as shown in FIG. 1:
  • each running process of the washing machine corresponds to a subroutine, and each of the subroutine runs is initially assigned a logical register, and the running process at least includes a water filling process and a washing process. Dehydration process;
  • the value of the PC pointer always points to the address of the running point of the current program. If the PC pointer is abnormal during the operation of the washing machine, the control fails, and the washing machine will continue to run for a certain period of time, such as washing.
  • the washing machine fault detection and processing method is detected by the PC pointer, and the operation safety problem can be detected and detected, and corresponding processing is taken to prevent the washing machine from appearing.
  • the internal operation of the algorithm is wrong, resulting in incorrect operation mode such as water intake and empty bucket washing, which ensures the safe operation of the washing machine and reduces the possibility of personal injury caused by the washing machine failure.
  • step S13 after the execution system is reset, in order to prevent the executed program from being repeatedly executed, such as the water injection process, if it has been filled, there is no need to inject water again, preventing further generation. A new fault occurs. Therefore, in this embodiment, by reading the current water level value detected by the water level sensor, the current water level value is compared with the set water level value. If the current water level value is greater than or equal to the set water level value, the water injection is skipped. Process, the next process of performing the water injection process, if in the washing state and the current water level value is zero, the dehydration process is performed.
  • step S11 and step S12 Since at least one complete subroutine is run through step S11 and step S12, it can be judged that at least the water injection process is performed. If the current water level value is zero, there is no need to refill water, wash, etc., and the dehydration process is directly executed, thereby avoiding Water and electricity are wasted, and washing is saved.
  • the zero-cross interrupt detection step is further included in this embodiment:
  • the frequency of the commercial frequency power supply is 50 Hz.
  • the hardware circuit is used to introduce the mains signal to the external interrupt port of the MCU.
  • the interrupt is a zero-crossing interrupt, and the signal period is normally 20 ms. In the program, the signal period and the MCU are used.
  • the device compares to determine if the interrupt or zero-crossing interrupt is normal. If the abnormality occurs in the zero-crossing interruption, it may be that the washing machine is running continuously or continuously reversed, and it is not easy to be discovered by the user.
  • the washing machine fault detection processing method of the embodiment can detect the zero-crossing abnormality and Controls the execution of a system reset to protect the safe operation of the washing machine.
  • the step of detecting the interrupt is further included:
  • the fixed interruption is used to detect the normal operation of the washing machine, the top cover of the washing machine, the cover of the whole machine, or other unsatisfactory conditions that the washing machine continues to operate, and can be controlled to stop operation, and Alarm to prevent damage to the user. If there is a problem with the interruption, it will cause a wash. The normal operation of the clothes machine does not alarm and does not stop running. There is a safety hazard. This embodiment further ensures the safe operation of the washing machine by detecting the fixed interruption.
  • the DC fault detecting step of the single-chip RAM is also included.
  • the value of the test address is saved and the interrupt is closed, and the value of the test address is saved in order to resume the program according to the originally written value after the detection is completed, by not stopping the interrupt, in order to prevent Detecting ⁇ generates an interrupt.
  • the test value written into the RAM is treated as a normal value. First, assign one value of 0x55 or Oxaa to the first test address, and assign 0x55 to the next test address. Another value in Oxaa, the data in the two test addresses are read separately, and compared with the written data. If not, the RAM is considered to have a problem, and the exception processing is performed; if they are equal, the other method is used in the same manner.
  • the test address is tested until all test addresses have been detected.
  • the value written by 0x55 is: 01010101
  • the value written by 0xaa is: 10101010.
  • 0x55 and Oxaa are respectively assigned to two adjacent RAM addresses, and the difference is numerically distinguished. , to prevent two addresses from being assigned the same value and a judgment error, to achieve the detection of the two addresses, improving the detection efficiency.
  • After all the addresses have been detected it is necessary to start from the first address and re-write another value that is not written by the address. For example, if the first address is first assigned 0x55, then only part of it can be written. The bit is written with 1. Therefore, the second assignment value should be assigned 0xaa, that is, the bit assigned to 0 in the first pass is assigned a value of 1 in the second pass, which enables all bits to be effectively detected.
  • the method further includes: detecting a failure of the single chip register:
  • [0059] further comprising the step of detecting the ROM, calculating a CRC-16 checksum of the ROM area code, and comparing the calculation structure with a fixed CRC-16 checksum stored in the ROM, if not, the ROM is considered to have Problem, exception handling.
  • the CRC is an error check code characterized in that the length of the information field and the check field can be arbitrarily selected. Polynomial calculations can be performed on the data, and the results obtained are appended to the frame.
  • the receiving device also performs a similar algorithm to ensure the correctness and integrity of the data transmission. In this embodiment, because the ROM area code length is long, the 8-bit CRC cannot meet the length requirement, and the 32-bit CRC causes computational waste.
  • the 16-bit CRC check is preferably used for the ROM area code.
  • And detection that is, CRC-16, CRC-16 checksum detection can prevent errors in the program written to the ROM area, and the washing machine operates normally and safely only if the program is correct.
  • the washing machine fault detection processing method of the embodiment further includes the step of processing the special function register: periodically configuring the configuration register of the function module used by the single chip to perform repeated assignment according to the set value.
  • Special registers generally control the input and output ports of the MCU. In order to prevent errors in the input and output ports defined in the program during operation, such as the input port becoming an output port, or the output port becoming an input port, an error will occur. Therefore, the method does not stop assigning values, even if there is an error in the intermediate process, the correct value of the method can be changed by the repeated assignment of the method, and the correct operation of the program is not affected.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

L'invention concerne un procédé de traitement et de détection de panne de machine à laver, comprenant les étapes suivantes : une étape de détection de pointeur PC : détecter respectivement divers processus de fonctionnement d'une machine à laver ; détecter respectivement si une valeur actuelle d'un registre logique est la même qu'une valeur attribuée une fois que le fonctionnement de divers sous-programmes est terminé et, si la valeur actuelle est différente de la valeur attribuée, déterminer qu'un pointeur PC est en panne, et maintenir un enregistrement de panne actuelle survenant pendant le processus de fonctionnement de la machine à laver selon la valeur attribuée ; et, lorsqu'il est déterminé que le pointeur PC est en panne, attendre pendant un temps t1, et continuer de détecter si la valeur actuelle du registre logique est la même que la valeur attribuée et, si tel est le cas, continuer d'exécuter le sous-programme, sinon exécuter une réinitialisation de système. Dans le procédé de traitement et de détection de panne de machine à laver de la présente invention, une erreur de fonctionnement interne est empêchée de se produire dans un algorithme d'une machine à laver, une panne est détectée par un système avant d'être trouvée par un utilisateur, et une mesure de commande de sécurité correspondante est adoptée, ce qui garantit le fonctionnement sécurisé de la machine à laver.
PCT/CN2016/077510 2015-04-28 2016-03-28 Procédé de traitement et de détection de panne de machine à laver Ceased WO2016173353A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1020177033725A KR20180013898A (ko) 2015-04-28 2016-03-28 세탁기 고장 검측 처리 방법
EP16785784.6A EP3290558B1 (fr) 2015-04-28 2016-03-28 Procédé de traitement et de détection de panne de machine à laver
JP2017556666A JP6697483B2 (ja) 2015-04-28 2016-03-28 洗濯機の故障検出及び処理方法
US15/570,586 US20180135224A1 (en) 2015-04-28 2016-03-28 Washing machine failure detection and processing method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510209110.3 2015-04-28
CN201510209110.3A CN106149284B (zh) 2015-04-28 2015-04-28 一种洗衣机故障检测处理方法

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WO2016173353A1 true WO2016173353A1 (fr) 2016-11-03

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PCT/CN2016/077510 Ceased WO2016173353A1 (fr) 2015-04-28 2016-03-28 Procédé de traitement et de détection de panne de machine à laver

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US (1) US20180135224A1 (fr)
EP (1) EP3290558B1 (fr)
JP (1) JP6697483B2 (fr)
KR (1) KR20180013898A (fr)
CN (1) CN106149284B (fr)
WO (1) WO2016173353A1 (fr)

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US11656615B2 (en) 2020-11-30 2023-05-23 Haier Us Appliance Solutions, Inc. Methods for detecting fan anomalies with built-in usage and sensory data
CN112860500B (zh) * 2021-02-22 2024-03-22 四川腾盾科技有限公司 一种多余度飞机管理计算机板卡上电自检测方法
CN115522357B (zh) * 2022-10-24 2025-06-06 珠海格力电器股份有限公司 洗衣机的故障处理方法、装置及洗衣机
CN115982057B (zh) * 2023-03-02 2023-06-09 杭州协能科技股份有限公司 程序指针故障检测方法
CN118621515B (zh) * 2023-03-08 2025-11-21 青岛海尔洗衣机有限公司 洗涤周期数据的还原方法、装置、设备和介质
KR20250111577A (ko) 2024-01-15 2025-07-22 성기봉 폼마법사 네비게이션의 아두이노 구조(Web 리모컨)

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Also Published As

Publication number Publication date
JP2018514306A (ja) 2018-06-07
CN106149284A (zh) 2016-11-23
EP3290558A4 (fr) 2019-04-10
JP6697483B2 (ja) 2020-05-20
US20180135224A1 (en) 2018-05-17
EP3290558B1 (fr) 2023-07-19
EP3290558A1 (fr) 2018-03-07
CN106149284B (zh) 2019-04-26
KR20180013898A (ko) 2018-02-07
EP3290558C0 (fr) 2023-07-19

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