CN101538791A - Clothes weight judgment method for barrel washing machine - Google Patents

Clothes weight judgment method for barrel washing machine Download PDF

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Publication number
CN101538791A
CN101538791A CN 200810034939 CN200810034939A CN101538791A CN 101538791 A CN101538791 A CN 101538791A CN 200810034939 CN200810034939 CN 200810034939 CN 200810034939 A CN200810034939 A CN 200810034939A CN 101538791 A CN101538791 A CN 101538791A
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washing machine
laundry
weight
speed
motor
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CN 200810034939
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Chinese (zh)
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CN101538791B (en )
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伟 宋
明 熊
彬 迟
郑圭凡
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苏州三星电子有限公司
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Abstract

The invention relates to a clothes weight judgment method for barrel washing machine, which comprises that: a motor control circuit of the washing machine controls the rotating speed required by a motor; a signal frequency acquisition circuit acquires an offset D and a rotating speed time difference delta T at a specific rotating time; a parameter hardware records and stores acquired data and sends the data to a rotating speed feedback circuit to adjust the output of the motor control circuit; and finally the clothes weight is calculated by the mean value of the data acquired for many times through a calculation formula. The clothes weight judgment method realizes that low and middle-grade barrel washing machines also have the function of judging the clothes weight, can automatically select washing mode, improves dewatering property, and optimizes washing program.

Description

滚筒洗衣机对衣物重量进行判断的方法 The method of the drum washing machine for laundry weight determination

技术领域 FIELD

本发明涉及滚筒洗衣机,尤其涉及滚筒洗衣机对衣物重量进行判断的方法。 The present invention relates to a drum washing machine, particularly to a method for the drum washing machine for laundry weight determination. 背景技术 Background technique

目前的高档滚筒洗衣机一般通过在减振器上的压力传感来进行洗衣重量的判断,即当重量不同的时候,压力传感器反馈给控制板的信号不同,以此来判断衣服的重量,智能的选择洗衣程序。 The current high-end drum washing machine is generally performed by sensing the pressure on the damper is determined by weight of the laundry, i.e. when a different weight when the pressure sensor feedback signals to the different control board, in order to determine the weight of the clothes, smart select the wash program. 但是由于增加这个功能的时候洗衣机的成本会增加很多,并不能适用于中低档的滚筒洗衣机。 However, due to the increased cost of this feature when the washing machine will increase a lot, it does not apply to middle and low drum washing machine. 且如果洗涤的衣物是手洗后直接进行脱水,压力传感器则无法判断。 And if laundry is hand direct dehydration, the pressure sensor can not be determined. 所以设计一种低成本且适用范围广的重量判断方法,对于产品的市场竞争力的提升将会有很大的帮助。 Therefore, a low-cost design and apply a wide range of weight determination method for enhancing the market competitiveness of the products will be of great help.

发明内容 SUMMARY

本发明的目的在于提供一种滚筒洗衣机进行重量判断的方法,实现在中低档洗衣机上也能根据衣物的重量智能的选择洗衣程序。 Object of the present invention is to provide a drum washing machine method of weight determination, middle and low in the washing machine realized according to the weight can be intelligent selection of the laundry wash program. 为达到以上目的,本发明所采用的解决方案是-一种滚筒洗衣机对衣物重量进行判断的方法,其包括: To achieve the above object, the solution is used in the present invention - a method for a drum washing machine for laundry weight determination, comprising:

洗衣机电机控制电路控制电机达到所要求的转速;信号频率采集电路在特定转速时采集数据;参数硬件记录将采集的数据保存,并发送给转速反馈电路调整电机控制电路的输出;参数硬件记录保存的数据同时通过计算公式算得衣物重量,并选择洗衣方式。 Washing machine motor speed control circuit controls the motor to achieve the desired; data acquisition circuit signal frequency at a particular rotational speed; record data parameters collected save hardware, sends a feedback circuit to adjust the output speed of the motor control circuit; record keeping hardware parameters while data calculated by the formula weight of the laundry, and laundry select mode.

进一步,采集的数据包括偏心量D和的转速时间差AT。 Further, the amount of collected data includes an eccentric rotational speed D and the time difference AT. 偏心量D由脱水前衣物分布不均匀产生,在脱水前90-110RPM之间任意设定一转速测得。 D is generated by the eccentricity amount before dewatering the laundry unevenly distributed, before dehydration 90-110RPM arbitrarily set between a measured speed.

转速时间差AT由电机减速时设定一个减速区间测得。 AT the time difference by the speed of the motor is set a deceleration zone deceleration measured.

对偏心量D和转速时间差AT进行多次采集,以其均值来计算出衣物重量。 And the amount of eccentricity of the rotational speed time difference AT D multiple acquisitions, its mean value is calculated laundry weight.

该计算公式为W^AT+bD+c, a、 b、 c为系数,-可根据不同洗衣机的特性有所变化。 The calculation formula is W ^ AT + bD + c, a, b, c are coefficients - can vary according to the different characteristics of the washing machine.

由于采用了上述方案,本发明具有以下特点- As a result of the above-described embodiment, the present invention has the following features -

本发明可以使更多低端的机器具有重量判断的功能;洗衣机脱水程序优化; 提高洗衣机脱水性能;降低机器成本。 The present invention enables more low-end machine has a weight determination function; washer extractor optimization procedure; improvement of the dewatering performance laundry; reduce machine costs.

附图说明 BRIEF DESCRIPTION

图1为洗衣机运行时间与转速关系图; 图2为关键测量参数记录硬件的电路示意图; 图3为洗衣机电机控制电路的电路示意图; 图4为信号频率采集提供电路的电路示意图; 图5为转速反馈电路的电路示意图; Figure 1 is a washing machine operating time and the rotational speed diagram; FIG. 2 is a schematic circuit diagram of key measurement parameters recorded hardware; FIG. 3 a circuit diagram of the washing machine motor control circuit is; FIG. 4 is a circuit diagram supply circuit signal frequency acquisition; FIG. 5 is a speed a feedback circuit schematic diagram of the circuit;

图6为测试过程中作3次平均后的洗衣机运行时间与转速关系图。 FIG 6 is a relationship between the rotational speed operating time after the washing machine of FIG. 3 as an average during the test.

图7为本发明滚筒洗衣机对衣物重量进行判断的方法的流程图。 Flowchart of a method of the invention, a drum washing machine laundry weight determination of Figure 7 is performed.

具体实施方式 detailed description

以下结合附图所示实施例对本发明作进一步的说明。 Hereinafter, the present invention will be further described in conjunction with the embodiment shown in the accompanying drawings.

在一个转动系统中,在同样的转速情况下,质量越大的实验体,转动惯量越大,因此减速的时间就越长,这种情况下,通过采集时间可以进行重量判断。 In a rotary system, at the same rotational speed, the greater the mass of the test body, the larger the amount of rotational inertia, thus longer deceleration time, in this case, the weight may be determined by the acquisition time. 本发明通过转动半径一定,角速度一定,不同的质量的负载在转动系统中的惯 The present invention, by a certain radius of rotation, constant angular velocity, different load mass moment of inertia of the rotating system,

性力是不一样的。 Of force is not the same. 洗衣机内桶转动达到一个指定转速(v)后,通过计算从指定转速(v)到另外一个指定转速(v')的时间差(」t)来判断衣物重量,根据衣物重量 After washing machine tub reaches a specified rotational speed (v), calculated from the designated rotational speed (v) In addition to a specified speed (v ') a time difference ( "t) to determine the weight of laundry, the laundry weight

洗衣机可以智能的选择洗衣脱水程序。 Laundry washing machine dehydration can choose to program intelligence. 在不同负载情况下脱水的性能不一样的, 智能选择脱水程序有利于改善洗衣机的脱水性能。 Dehydration under different load conditions is not the same performance, intelligent choice dewatering program will help to improve the performance of the washing machine dehydration.

本发明利用脱水前滚桶减速时间进行重量判断的技术,其软、硬件主要包 The present invention utilizes the drum deceleration time before dehydration weight determination technique that software and hardware main bag

括:洗衣机在做判断时,电机需要达到的各个不同的转速和需要采集的参数, Comprising: speed and various parameters to be collected is determined when doing the washing machine, the motor to be achieved,

如图l所示的洗衣机运行时间与转速关系图。 Running time of the washing machine shown in the speed diagram in Figure l. 其中关键参数记录硬件(如图2) 部分会把每次采集的参数进行记录,如图1中的在98RPM时记录的D-脱水前衣服分布不均匀产生的偏心量和减速时200RPM到100RPM的转速时间差AT。 Wherein when recording the key parameters for each acquisition parameters of the hardware part will be recorded (FIG. 2), as shown in the recording at 98RPM D- clothes prior to dehydration resulting uneven distribution of the amount of eccentricity 200RPM to 100RPM and deceleration of rotational speed time difference AT. 洗衣机电机控制电路(如图3)使电机能够达到要求的转速,洗衣机在脱水前的0-98RPM时,是在判断重量衣物分布在筒内的偏心,150RPM是脱去衣服上的水, 200-100RPM (减速区间也可以根据不同的洗衣机特性进行,只要能很好的采集到时间差AT就可以)是为了测试到一个计算重量的时间差,因此,在98RPM进行偏心区分的转速(即在维持98RPM时采集一个转速差进行区分),150RPM脱去多余的水。 Washer motor control circuit (FIG. 3) the rotational speed of the motor to achieve the requirements of the washing machine when 0-98RPM before dehydration, weight of the laundry is distributed in the determination of an eccentric cylinder, is 150RPM off water on the clothes, 200- 100RPM (deceleration section can be performed according to different washing machine characteristics, as long as a very good acquisition time difference aT can) in order to test a calculated weight of a time difference, thus eccentrically distinguish rotational speed of 98 rpm (i.e., to maintain 98 rpm during acquisition distinguish a difference in rotational speed), 150RPM off excess water. 200RPM时间测定的目标转速(200RPM是洗衣机桶的转速,桶的转速和电机转速是有一个固定的传动比的。),转速反馈电路(如图5)使洗衣机电机控制电路能够达到的转速更加精确。 Target rotation speed determination time 200RPM (200RPM washing machine tub is the rotational speed, the rotational speed of the tub and the motor speed is a fixed gear ratio), the speed feedback circuit (FIG. 5) that the washing machine motor speed control circuit can achieve more accurate . 信号频率采集提供电路(如图4)使电路中的转速和时间能够量化,得到目标物理参数。 Acquisition frequency signal supply circuit (FIG. 4) the rotational speed and the time circuit can be quantified to obtain the target physical parameters.

本发明通过采集不同的减速时间来区分衣服的重量,因为在同样的转速情况下,重量不一样,转动惯性就不一样。 The present invention is distinguished by taking the weight of clothes of different deceleration time, because at the same rotational speed, the weight is not the same, the rotational inertia is not the same. 当有不同负载的衣服在洗衣机桶里时, 由程序控制洗衣机电机控制电路使洗衣机内桶按照图1所示的洗衣机运行时间与转速关系图要求的顺序进行加速,并计算出98RPM的脱水前衣服分布不均匀产生的偏心量D,最后到达200RPM(整个过程中转速反馈电路不断反馈转速,以供调整),然后程序停止对洗衣机电机控制电路的控制,内桶开始减速,检测出减速到100RPM的时间AT。 When there are different loads of clothes washing machine bucket, program-controlled washing machine motor control circuit causes the inner tub washing machine in order to accelerate the operating speed relationship of FIG time required washing machine shown in Figure 1, and calculates the distribution of the clothes before the dehydration 98RPM produce uneven amount of eccentricity D, and finally to 200RPM (the whole process speed feedback circuit continuous feedback speed for adjustment), and then the program stops the control of the washing machine motor control circuit, the basket begins to slow detects the deceleration time aT 100RPM of . 由程序中已经设定的计算公式进行计算,计算出衣服的重量。 The formula of the program has been set is calculated, the calculated weight of the garment. 如图6所示对偏心量D和转速时间差AT采集三次(采集次数可以根据精度的要求增加或减少),采用其均值进行计算以增加精度。 D and the rotational speed of the eccentric amount acquisition time difference AT three shown in Figure 6 (according to the number of acquisitions required accuracy can be increased or decreased), is calculated using the mean in order to increase accuracy. 该计算公式为W=a △T+bD+c,系数a、 b、 c可以根据不同的洗衣机特性进行修改。 This is calculated as W = a △ T + bD + c, coefficients a, b, c may be modified depending on the characteristics of the washing machine.

不同容量、不同传动比的洗衣机轴系会得到不同的系数a、 b、 c,具体可通过实验得到的数据,进行拟合,计算得出。 Different sizes, different transmission ratios of the washing machine will be different shaft coefficients a, b, c, Specific, by fitting the experimental data obtained is calculated.

当判断出衣物重量后,洗衣机会选择不同的加速度分布筒内衣物,保障洗衣机脱水性能。 When it is determined that the weight of laundry, the washing machine will choose a different acceleration profile laundry inside the drum, the washing machine dewatering performance guarantee.

上述的对实施例的描述是为便于该技术领域的普通技术人员能理解和应用本发明。 Description of the embodiments described above for ease of ordinary skill in the art to understand and apply the invention. 熟悉本领域技术的人员显然可以容易地对这些实施例做出各种修改, 并把在此说明的一般原理应用到其他实施例中而不必经过创造性的劳动。 A person skilled in art may readily apparent that various modifications to these embodiments, and the generic principles described herein apply to other embodiments without going through creative work. 因此, 本发明不限于这里的实施例,本领域技术人员根据本发明的揭示,对于本发明做出的改进和修改都应该在本发明的保护范围之内。 Accordingly, the present invention is not limited to the embodiments herein, those skilled in the art in accordance with the present invention are disclosed, for improvements and modifications should be made to the invention within the scope of the present invention.

Claims (6)

  1. 1、一种滚筒洗衣机对衣物重量进行判断的方法,其特征在于:其包括: 洗衣机电机控制电路控制电机达到所要求的转速;信号频率采集电路在特定转速时采集数据;参数硬件记录将采集的数据保存,并发送给转速反馈电路调整电机控制电路的输出;参数硬件记录保存的数据同时通过计算公式算得衣物重量,并选择洗衣方式。 1, a drum washing machine for laundry weight determination method, comprising: comprising: a washing machine motor speed control circuit controls the motor to achieve the desired; data acquisition circuit signal frequency at a particular rotational speed; recording hardware parameters collected data storage, and sends a feedback circuit to adjust the output speed of the motor control circuit; hardware parameters stored data while recording the weight of laundry calculated by the calculation formula, and selecting the washing mode.
  2. 2、 如权利要求1所述的滚筒洗衣机对衣物重量进行判断的方法,其特征在于:采集的数据包括偏心量D和的转速时间差AT。 2, the drum type washing machine as claimed in claim 1, a method for determining the weight of laundry, wherein: the amount of collected data includes an eccentric rotational speed D and the time difference AT.
  3. 3、 如权利要求2所述的滚筒洗衣机对衣物重量进行判断的方法,其特征在于-偏心量D由脱水前衣物分布不均匀产生,在脱水前90-110RPM之间任意设定一转速测得。 3, the drum type washing machine as claimed in claim 2, the method of determining the laundry weight is carried out, wherein - the eccentric amount D generated by the uneven distribution of laundry before dewatering, dewatering prior to arbitrarily set a speed measured between 90-110RPM .
  4. 4、 如权利要求2所述的滚筒洗衣机对衣物重量进行判断的方法,其特征在于-转速时间差AT由电机减速时设定一个减速区间测得。 4, the drum washing machine as claimed in claim 2 for the laundry weight determination method, characterized in that - the rotational speed set by the time difference AT decelerating a motor decelerating interval measured.
  5. 5、 如权利要求2所述的滚筒洗衣机对衣物重量进行判断的方法,其特征在于:对偏心量D和转速时间差AT进行多次采集,以其均值来计算出衣物重量。 5, the drum type washing machine as claimed in claim 2, the laundry weight determination method, comprising: eccentricity amount D and the time difference AT speed multiple acquisitions, its mean value is calculated laundry weight.
  6. 6、 如权利要求1所述的滚筒洗衣机对衣物重量进行判断的方法,其特征在于:该计算公式为W=aAT+bD+c,其中D为偏心量D, AT为转速时间差,a、 b、 c为根据不同洗衣机的特性确定的系数。 6, as claimed in the drum washing machine of claim 1, wherein the laundry weight method of determination, wherein: the formula is W = aAT + bD + c, where D is the amount of eccentricity D, the AT rotational speed time difference, a, b , c is a coefficient determined according to the characteristics of the different washing machines.
CN 200810034939 2008-03-21 2008-03-21 Clothes weight judgment method for barrel washing machine CN101538791B (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102828382A (en) * 2011-06-15 2012-12-19 苏州三星电子有限公司 Method for judging eccentric state of drum washing machine before dehydrating at high speed
WO2014186992A1 (en) * 2013-05-23 2014-11-27 无锡小天鹅股份有限公司 Method for judging weight of clothes for series motor drum washing machine
CN104213367A (en) * 2013-05-31 2014-12-17 无锡小天鹅股份有限公司 Method for series excited motor roller washing machine to judge weight of clothes
CN104294544A (en) * 2014-10-16 2015-01-21 海信容声(广东)冰箱有限公司 Method and device for weighing clothes in washing machine
CN104593996A (en) * 2014-12-11 2015-05-06 广东威灵电机制造有限公司 Dewatering control method and device and washing machine
CN105714510A (en) * 2014-12-01 2016-06-29 无锡小天鹅股份有限公司 Washing machine and method for distributing and adjusting clothes before dewatering
CN105780392A (en) * 2016-04-29 2016-07-20 无锡小天鹅股份有限公司 Detection method of load status of washing machine and dewatering method
CN105862313A (en) * 2016-04-29 2016-08-17 无锡小天鹅股份有限公司 Eccentricity sensing method for pulsator washing machine and pulsator washing machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3603576B2 (en) 1997-12-24 2004-12-22 松下電器産業株式会社 Drum-type washing machine
JP3756008B2 (en) 1999-02-15 2006-03-15 シャープ株式会社 Drum-type washing machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102828382A (en) * 2011-06-15 2012-12-19 苏州三星电子有限公司 Method for judging eccentric state of drum washing machine before dehydrating at high speed
WO2014186992A1 (en) * 2013-05-23 2014-11-27 无锡小天鹅股份有限公司 Method for judging weight of clothes for series motor drum washing machine
CN104213367A (en) * 2013-05-31 2014-12-17 无锡小天鹅股份有限公司 Method for series excited motor roller washing machine to judge weight of clothes
CN104294544A (en) * 2014-10-16 2015-01-21 海信容声(广东)冰箱有限公司 Method and device for weighing clothes in washing machine
CN105714510A (en) * 2014-12-01 2016-06-29 无锡小天鹅股份有限公司 Washing machine and method for distributing and adjusting clothes before dewatering
CN105714510B (en) * 2014-12-01 2018-04-20 无锡小天鹅股份有限公司 Washing machine and a laundry distribution adjusting method before dehydration
CN104593996A (en) * 2014-12-11 2015-05-06 广东威灵电机制造有限公司 Dewatering control method and device and washing machine
CN105780392A (en) * 2016-04-29 2016-07-20 无锡小天鹅股份有限公司 Detection method of load status of washing machine and dewatering method
CN105862313A (en) * 2016-04-29 2016-08-17 无锡小天鹅股份有限公司 Eccentricity sensing method for pulsator washing machine and pulsator washing machine

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