Drying control method and device, computer storage medium and dryer

Abstract

The drying control method comprises the steps of obtaining running time of a dryer; acquiring an outer diameter value of the roller; the weight value and the drying included angle of the to-be-dried object in the dryer are obtained, and the drying included angle represents the included angle between the highest point of rotation of the to-be-dried object and the highest point of a roller; setting operation parameters of the dryer according to the operation time, the outer diameter value, the weight value and the drying included angle; wherein the operation parameters comprise a first duration of forward rotation, a second duration of reverse rotation, a first switching time for switching forward rotation to reverse rotation, and a second switching time for switching reverse rotation to forward rotation.

Description

Technical Field

[0001] The present application belongs to the field of drying technology, and in particular relates to a drying control method, device, computer storage medium and drying machine. Background Art

[0002] The drying time of the dryer has always been a pain point for users. Sometimes it takes 1-2 hours, or even longer, to dry a few pieces of clothing. In addition, the dryer also has the problem of uneven drying. For example, the clothes taken out of the dryer are dry in some places and a little damp in some places, which leads to a poor user experience. In order to improve the heat and mass transfer between the water vapor on the clothes and the circulating air, the clothes in the drum need to be constantly rolled. If the clothes are not turned over for a long time, or are shaken apart, the mass transfer and heat exchange effect with the hot air will be very poor, resulting in long drying time and uneven drying. Summary of the invention

[0003] The present application aims to solve the technical problem of long drying time at least to a certain extent. To this end, the present application provides a drying control method, device, computer storage medium and drying machine.

[0004] In a first aspect, an embodiment of the present application provides a drying control method, which is applied to a drying machine, wherein the drying machine includes a drum for accommodating objects to be dried, and the drying control method includes:

[0005] Obtaining the running time of the dryer;

[0006] Obtaining the outer diameter value of the roller;

[0007] Obtaining a weight value and a drying angle of the object to be dried in the dryer, wherein the drying angle represents an angle between the highest point of rotation of the object to be dried and the highest point of the drum;

[0008] The operating parameters of the dryer are set according to the operating time, the outer diameter value, the weight value and the drying angle; wherein the operating parameters include a first duration of forward rotation, a second duration of reverse rotation, a first switching time from forward rotation to reverse rotation, and a second switching time from reverse rotation to forward rotation.

[0009] In an optional embodiment of the present application, the step of setting the operating parameters of the dryer according to the operating time, the outer diameter value, the weight value and the drying angle includes:

[0010] The first duration and the second duration are set according to the running time, the outer diameter value and the drying angle;

[0011] The first switching time and the second switching time are set according to the weight value, the outer diameter value and the drying angle.

[0012] In an optional embodiment of the present application, the step of setting the first duration of the dryer according to the running time, the outer diameter value, the weight value and the drying angle includes:

[0013] Setting a first forward rotation speed of the dryer according to the outer diameter value and the drying angle;

[0014] setting a first coefficient according to the running time;

[0015] The first duration is set according to the first coefficient and the first rotation speed.

[0016] In an optional embodiment of the present application, the first duration is calculated according to the following formula:

[0017] T1=K1*n1 / 60 ;

[0018] Wherein, T1 is the first duration, n1 is the first rotation speed, and K1 is the first coefficient.

[0019] In an optional embodiment of the present application, the first rotation speed is calculated according to the following formula:

[0020]

[0021] Wherein, D is the weight value, n1 is the first rotation speed, α is the drying angle, and g is the gravitational acceleration.

[0022] In an optional embodiment of the present application, the running time is negatively correlated with the first coefficient.

[0023] In an optional embodiment of the present application, the step of setting the second duration of the dryer according to the running time, the outer diameter value, the weight value and the drying angle includes:

[0024] Setting a second forward rotation speed of the dryer according to the outer diameter value and the drying angle;

[0025] setting a second coefficient according to the running time;

[0026] The second duration is set according to the second coefficient and the second rotation speed.

[0027] In an optional embodiment of the present application, the second duration is calculated according to the following formula:

[0028] T2=K2*n2 / 60 ;

[0029] Wherein, T2 is the second duration, n2 is the second rotation speed, and K2 is the second coefficient.

[0030] In an optional embodiment of the present application, the second speed is calculated according to the following formula:

[0031]

[0032] Wherein, D is the weight value, n2 is the second rotation speed, α is the drying angle, and g is the gravitational acceleration.

[0033] In an optional embodiment of the present application, the running time is negatively correlated with the second coefficient.

[0034] In an optional embodiment of the present application, the step of setting the first switching time of the dryer according to the running time, the outer diameter value, the weight value and the drying angle includes:

[0035] Setting a first forward rotation speed of the dryer according to the outer diameter value and the drying angle;

[0036] setting a third coefficient according to the weight value;

[0037] setting the first switching time according to the third coefficient and the first speed;

[0038] In an optional embodiment of the present application, the first switching time is set according to the following formula:

[0039] T3=K3*n1 / 60 ;

[0040] Wherein, T3 is the first switching time, n1 is the first rotation speed, and K3 is the third coefficient.

[0041] In an optional embodiment of the present application, the step of setting the second switching time of the dryer according to the running time, the outer diameter value, the weight value and the drying angle includes:

[0042] Setting a second forward rotation speed of the dryer according to the outer diameter value and the drying angle;

[0043] setting a fourth coefficient according to the weight value;

[0044] The second switching time is set according to the fourth coefficient and the second rotation speed.

[0045] In an optional embodiment of the present application, the second switching time is set according to the following formula:

[0046] T4=K4*n2 / 60 ;

[0047] Among them, T3 is the first switching time, n1 is the first speed, n2 is the second speed, K4 is the fourth coefficient, and T4 is the second switching time.

[0048] In a second aspect, in an optional embodiment of the present application, a drying control device is applied to a drying machine, wherein the drying machine includes a drum for accommodating objects to be dried, and the drying control method includes:

[0049] A first acquisition module, used for acquiring the running time of the dryer;

[0050] A second acquisition module is used to acquire the outer diameter value of the roller;

[0051] A third acquisition module is used to acquire the weight value and drying angle of the object to be dried in the dryer, wherein the drying angle represents the angle between the highest point of rotation of the object to be dried and the highest point of the drum;

[0052] A setting module is used to set the operating parameters of the dryer according to the operating time, the outer diameter value, the weight value and the drying angle; wherein the operating parameters include a first duration of forward rotation, a second duration of reverse rotation, a first switching time from forward rotation to reverse rotation, and a second switching time from reverse rotation to forward rotation.

[0053] The beneficial effects of the drying control device provided in the second aspect are the same as the beneficial effects of the drying control method provided in the first aspect, and will not be repeated here.

[0054] In a third aspect, an embodiment of the present application provides a computer storage medium storing a computer program, which, when executed by a processor, can implement the drying control method mentioned in the first aspect.

[0055] The computer storage medium provided in the third aspect has the same beneficial effects as the drying control method provided in the first aspect, which will not be described in detail here.

[0056] In a fourth aspect, an embodiment of the present application provides a dryer, comprising: a controller, wherein the controller is used to execute the computer program stored in the memory to implement the drying control method provided in the first aspect.

[0057] The beneficial effects of the dryer provided in the fourth aspect are the same as the beneficial effects of the drying control method provided in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0059] Figure 1 A flow chart of a drying control method provided in an embodiment of the present application is shown.

[0060] Figure 2 The schematic diagram shows the movement of the objects to be dried in the drum.

[0061] Figure 3 A flowchart of the sub-steps of step S400 of the drying control method provided in an embodiment of the present application is shown.

[0062] Figure 4 A flow chart of steps S411 to S413 of the drying control method provided in an embodiment of the present application is shown.

[0063] Figure 5 A flow chart of steps S416 to S418 of the drying control method provided in an embodiment of the present application is shown.

[0064] Figure 6 A flow chart of steps S431 to S433 of the drying control method provided in an embodiment of the present application is shown.

[0065] Figure 7 A flow chart of steps S436 to S438 of the drying control method provided in an embodiment of the present application is shown.

[0066] Figure 8 A graph showing the relationship between the running time of the drying control method of the present application and the drying control method in the related art and the humidity at the drum outlet is shown.

[0067] Fig. 9 The figure shows a block diagram of the drying control device provided in an embodiment of the present application.

[0068] Figure numerals: 10 - drying control device, 11 - first acquisition module, 12 - second acquisition module, 13 - third acquisition module, 14 - setting module, 20 - dryer, 21 - drum, 30 - object to be dried. DETAILED DESCRIPTION

[0069] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0070] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0071] The drying time of the dryer has always been a pain point for users. Sometimes it takes 1-2 hours, or even longer, to dry a few pieces of clothing. In addition, the dryer also has the problem of uneven drying. For example, the clothes taken out of the dryer are dry in some places and a little damp in some places, which leads to a poor user experience. In order to improve the heat and mass transfer between the water vapor on the clothes and the circulating air, the clothes in the drum need to be constantly rolled. If the clothes are not turned over for a long time, or are shaken apart, the mass transfer and heat exchange effect with the hot air will be very poor, resulting in long drying time and uneven drying.

[0072] In order to improve the mass transfer and heat exchange effect between the hot air and the material to be dried in the dryer, it is necessary to shake the material to be dried apart during the drying process to increase the contact area between the material to be dried and the hot air and improve the moisture carrying capacity. In the embodiment of the present application, the applicant discovered through creative work that the shaking state of the clothes in the dryer is related to the rotation speed of the drum of the dryer, the duration of the forward and reverse rotation, and the switching time of the forward and reverse rotation. Different humidity levels of the material to be dried and different operating times of the dryer require different forward and reverse rotation durations and switching times. In the embodiment of the present application, the duration and switching time of the forward and reverse rotation of the drum are set in real time according to the operating time of the dryer and the weight value of the dryer, so that the contact area between the material to be dried and the hot air under different humidity conditions can be increased as much as possible, the moisture carrying capacity of the hot air can be improved, and the drying time can be shortened.

[0073] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0074] The embodiment of the present application provides a drying control method, and the drying control method provided by the embodiment of the present application is applied to a dryer 20, wherein the dryer 20 may be an independent dryer 20 or a washer-dryer. The drying control method provided by the embodiment of the present application can set the duration and switching time of the forward and reverse rotation of the drum 21 in real time according to the running time of the dryer 20 and the weight value of the dryer 20, so as to increase the contact area between the object to be dried 30 and the hot air under different humidity conditions as much as possible, reduce the time for the object to be dried 30 to accumulate at the bottom, increase the contact area between the object to be dried 30 and the hot air, and improve the moisture carrying capacity of the hot air, thereby shortening the drying time.

[0075] The object to be dried 30 may be clothing worn by the user, including but not limited to coats, pants, socks, jumpsuits, etc. It may also be bedding such as bed sheets, or household items such as carpets and curtains.

[0076] The specific steps of the drying control method are as follows:

[0077] See also Figure 1 , Figure 1 Flow chart of the drying control method. Step S100 is to obtain the running time of the drying machine 20.

[0078] The running time of the dryer 20 can be obtained after the dryer 20 is started, that is, respond to the start instruction of the dryer 20 and obtain the running time of the dryer 20, wherein the running time is obtained in real time, and the interval time for obtaining the running time can be set, and the running time can be obtained once every first preset time interval.

[0079] Step S200 , obtaining the outer diameter value of the roller 21 .

[0080] In some embodiments, the drum 21 is one of the components of the dryer 20. The drum 21 is a space for accommodating the object 30 to be dried. The outer diameter of the drum 21 has a great relationship with the capacity of the drum 21. The larger the outer diameter, the larger the capacity of the drum 21, and the smaller the outer diameter, the smaller the capacity of the drum 21, which is usually 500mm to 600mm.

[0081] The outer diameter value is a set value, and the outer diameter value is determined when the dryer 20 leaves the factory.

[0082] Step S300 , obtaining the weight value and drying angle of the object to be dried 30 in the dryer 20 , wherein the drying angle represents the angle between the highest point of rotation of the object to be dried 30 and the highest point of the drum 21 .

[0083] When the dryer 20 is drying the object 30 to be dried, the moisture in the object 30 to be dried will continue to decrease, and the weight value of the object 30 to be dried will continue to decrease. If different weight values ​​are used with the same forward and reverse rotation time or switching time, the contact area between the object 30 to be dried and the hot air cannot be maximized. The weight value of the object 30 to be dried can be obtained, and at least one of the first duration, the second duration, the first switching time and the second switching time can be adjusted according to the weight value of the object 30 to increase the contact area between the hot air and the object 30 to be dried during the drying process, improve the moisture carrying capacity, and thus shorten the drying time.

[0084] The weight value may be a constant value, that is, the current weight value of the object to be dried 30 is directly obtained when the dryer 20 is started, that is, the initial weight of the object to be dried 30. Since the weight of the object to be dried 30 is constantly changing due to the humidity during the drying process, the weight value may be a variable value, and the weight value may be obtained once every second preset time interval, that is, the current weight value is the real-time weight of the object to be dried 30.

[0085] Of course, as for the relationship between the first preset time and the second preset time, the first preset time and the second preset time may be the same or different.

[0086] like Figure 2 As shown, Figure 2 The position of the drying angle is shown, where point C is the highest point of the drum 21, M represents the object to be dried 30, and V represents the speed at which the object to be dried 30 rotates following the drum 21, which is the drying angle. The drying angle is the angle between the highest point of the object to be dried 30 following the rotation of the drum 21 and the highest point of the drum 21. When the object to be dried 30 rotates to the highest point, under the action of inertia and gravity, the object to be dried 30 will move downward in a parabola. In the process of the object to be dried 30 being scattered, the object to be dried 30 will be shaken apart, which can increase the contact area with the hot air.

[0087] The smaller the drying angle is, the higher the object 30 to be dried will be thrown in the drum 21. The lower the drying angle is, the lower the object 30 to be dried will be thrown in the drum 21. However, the drying angle cannot be set too small. If the drying angle is close to 0, the object 30 to be dried will stick to the inner wall of the drum 21 and will not fall off easily. In order to throw up the object 30 to be dried in the drum 21 and shake it apart, the drying angle needs to be selected at a suitable angle, which can be 5 degrees to 50 degrees.

[0088] The highest point of the drum 21 refers to the highest point in the vertical direction.

[0089] It should be noted that there is no order of precedence among step S100, step S200 and step S300. Step S100, step S200 and step S300 can be executed simultaneously, can be executed in the order of step S100, step S200 and step S300, or can be executed in any order, or one of the steps can be executed first and then the other two steps, or two of the steps can be executed first and then the other step.

[0090] Step S400, setting the operating parameters of the dryer 20 according to the operating time, outer diameter value, weight value and drying angle, wherein the operating parameters include a first duration of forward rotation, a second duration of reverse rotation, a first switching time from forward rotation to reverse rotation, and a second switching time from reverse rotation to forward rotation.

[0091] In some embodiments, the duration and switching time of the forward and reverse rotation of the drum 21 are set in real time according to the operating time of the dryer 20 and the weight value of the dryer 20, so as to maximize the contact area between the object to be dried 30 and the hot air under different humidity conditions, improve the moisture-carrying capacity of the hot air, and thus shorten the drying time.

[0092] The first duration refers to the duration of the forward rotation of the drum 21, and the second duration refers to the duration of the reverse rotation of the drum 21. The first switching time refers to the time of switching from forward rotation to reverse rotation, and the second switching time refers to the time of switching from reverse rotation to forward rotation.

[0093] It should be noted that the forward rotation and the reverse rotation of the drum 21 are two opposite directions. If one of the rotation directions of the drum 21 is defined as the forward rotation, the other rotation direction is defined as the reverse rotation.

[0094] Specifically, how to set the first duration, the second duration, the first switching time, and the second switching time will be described in detail below.

[0095] It should be noted that the drying angle may be a preset fixed value, and different drying angles may be set according to different operating times or different weight values, that is, the drying angle may also be a real-time variable value.

[0096] See also Figure 3 , Figure 3 Flow chart of sub-steps of step S400. Step S400 may include step S410 and step S430.

[0097] Step S410, setting a first duration and a second duration according to the running time, the outer diameter value and the drying angle.

[0098] During the process of drying the object 30 in the dryer 20, the humidity in the object 30 is high and the object 30 is heavy in the early stage of drying, and the humidity in the object 30 is low and the weight is light in the later stage. In the later stage, the reversal frequency of the dryer 20 needs to be increased to increase the contact area between the object 30 and the hot air and improve the uniformity of drying. The first duration and the second duration can be set according to the running time, the outer diameter value and the drying angle of the dryer 20 to increase the contact area between the object 30 and the hot air and improve the uniformity of drying.

[0099] In some embodiments, step S410 may include step S411, step S412, step S413, step S416, step S417 and step S418. Step S411, step S412 and step S413 are specific methods for setting the first duration, and step S416, step S417 and step S418 are specific methods for setting the second duration.

[0100] See also Figure 4 , Figure 4 The flowchart is from step S411 to step S413. Step S411, the first forward rotation speed of the drying machine 20 is set according to the outer diameter value and the drying angle.

[0101] The first forward rotation speed of the dryer 20 can be set according to the outer diameter value of the drum 21 and the drying angle. The outer diameter value of the drum 21 has been set at the factory, and different outer diameter values ​​correspond to different upper speed limits.

[0102] Specifically, the first speed is calculated according to the following formula:

[0103]

[0104] Wherein, D is the weight value, n1 is the first rotation speed, α is the drying angle, and g is the acceleration of gravity. It can be calculated that the first rotation speed is approximately 45 rpm to 65 rpm.

[0105] Step S412, setting a first coefficient according to the running time.

[0106] In some embodiments, the first coefficient represents the number of forward rotations of the drum 21. If the first coefficient is small, it needs to switch between forward and reverse rotation frequently, resulting in frequent current shocks to the driving motor of the drum 21. If the first coefficient is large, it keeps running in one direction for a long time, and the state of the object 30 to be dried is relatively stable, which easily causes the hot air to contact the object 30 to be dried only at a fixed position, resulting in poor mass transfer and heat exchange effects, resulting in uneven drying.

[0107] In order to balance the impact caused by too small or too large value of the first coefficient. In the early stage of drying, the moisture content is high, and a larger first coefficient can be set. In the early stage of drying, the first coefficient can be set to 200. In the later stage of drying, the moisture content is low, and a smaller first coefficient is set to maintain a more frequent turning effect and improve the uniformity of clothing drying. In the later stage of drying, the first coefficient can be set to 20.

[0108] Of course, the entire drying process can also be divided into more stages (3 or 5 stages), and the first coefficient of each stage is different, but as the drying time continues, the first coefficient gradually decreases. As the moisture content of the clothes decreases, the forward and reverse switching becomes more frequent, thereby speeding up the drying time and improving the drying uniformity.

[0109] That is to say, the running time is negatively correlated with the first coefficient. The longer the running time is, the smaller the first coefficient is. Different running time differences can be set at the beginning, and the running time in the same interval corresponds to the same first coefficient. The corresponding relationship between the running time and the first coefficient can be established by looking up a table, and each running time has a first coefficient for a setting.

[0110] After obtaining the running time once, the corresponding first coefficient in the table may be searched according to the obtained running time.

[0111] Step S413, setting a first duration according to the first coefficient and the first speed.

[0112] The first coefficient represents the number of positive rotations of the drum 21 , and the first duration can be calculated according to the first rotation speed and the first coefficient, as follows: the first duration can be calculated according to the following formula.

[0113] T1=K1*n1 / 60 ;

[0114] Wherein, T1 is the first duration, n1 is the first rotation speed, and K1 is the first coefficient.

[0115] In order to balance the impact caused by the first coefficient being too small or too large. In the early stage of drying, the moisture content is high, and a larger first coefficient can be set. In the early stage of drying, the first coefficient can be set to 200, and the first duration is about 180 seconds. In the late stage of drying, the moisture content is low, and a smaller first coefficient is set to maintain a more frequent turning effect and improve the uniformity of clothing drying. In the late stage of drying, the first coefficient can be set to 20, and the first duration is about 18 seconds.

[0116] See also Figure 5 , Figure 5 This is a flow chart of step S416 to step S418. Step S416, setting the second forward rotation speed of the dryer 20 according to the outer diameter value and the drying angle.

[0117] The second reverse rotation speed of the dryer 20 can be set according to the outer diameter value of the drum 21 and the drying angle. The outer diameter value of the drum 21 has been set at the factory, and different outer diameter values ​​correspond to different upper speed limits.

[0118] Specifically, the second speed is calculated according to the following formula:

[0119]

[0120] Wherein, D is the weight value, n2 is the second rotation speed, α is the drying angle, and g is the gravity acceleration. It can be calculated that the second rotation speed is approximately 45 rpm to 65 rpm.

[0121] Step S417, setting the second coefficient according to the running time.

[0122] In some embodiments, the second coefficient indicates the number of turns of the drum 21. If the second coefficient is small, it needs to switch between forward and reverse rotation frequently, resulting in frequent current shocks to the driving motor of the drum 21. If the second coefficient is large, it keeps running in one direction for a long time, and the state of the object 30 to be dried is relatively stable, which easily causes the hot air to contact the object 30 to be dried only at a fixed position, resulting in poor mass transfer and heat exchange effect, resulting in uneven drying.

[0123] In order to balance the impact caused by too small or too large value of the second coefficient. In the early stage of drying, the moisture content is high, and a larger second coefficient can be set. In the early stage of drying, the second coefficient can be set to 200. In the later stage of drying, the moisture content is low, and a smaller second coefficient is set to maintain a more frequent turning effect and improve the uniformity of clothing drying. In the later stage of drying, the second coefficient can be set to 20.

[0124] Of course, the whole drying process can also be divided into more stages (3 or 5 stages), and the second coefficient of each stage is different, but as the drying time continues, the second coefficient gradually decreases. As the moisture content of the clothes decreases, the forward and reverse switching becomes more frequent, thereby speeding up the drying time and improving the drying uniformity.

[0125] That is to say, the running time is negatively correlated with the second coefficient. The longer the running time is, the smaller the second coefficient is. Different running time differences can be set at the beginning, and the running time in the same interval corresponds to the same second coefficient. The corresponding relationship between the running time and the second coefficient can be established by looking up a table, and each running time has a second coefficient for one setting.

[0126] After obtaining the running time once, the corresponding second coefficient in the table can be searched according to the obtained running time.

[0127] Step S418, setting a second duration according to the second coefficient and the second speed.

[0128] The second coefficient represents the number of revolutions of the drum 21. The second duration can be calculated according to the second rotation speed and the second coefficient. Specifically, the second duration is calculated according to the following formula:

[0129] T2=K2*n2 / 60 ;

[0130] Wherein, T2 is the second duration, n2 is the second rotation speed, and K2 is the second coefficient.

[0131] In order to balance the impact caused by the second coefficient being too small or too large. In the early stage of drying, the moisture content is high, and a larger second coefficient can be set. In the early stage of drying, the second coefficient can be set to 200, and the second duration is about 180 seconds. In the late stage of drying, the moisture content is low, and a smaller second coefficient is set to maintain a more frequent turning effect and improve the uniformity of clothing drying. In the late stage of drying, the second coefficient can be set to 20, and the second duration is about 18 seconds.

[0132] In some embodiments, within the same operating time, the first coefficient and the second coefficient may be set to be the same or different. When the first coefficient and the second coefficient are set to be the same, the first duration and the second duration may be the same. When the first coefficient and the second coefficient are set to be different, the first duration and the second duration may be different. In other words, whether the first coefficient and the second coefficient are the same may not be limited. That is, whether the first duration and the second duration are the same may not be limited.

[0133] See also Figure 3 , step S430, setting the first switching time and the second switching time according to the weight value, the outer diameter value and the drying angle.

[0134] In some embodiments, during the forward and reverse switching process, the greater the acceleration of the forward and reverse switching, the higher the capacity requirement of the drum 21 driving motor, the greater the inertial acceleration of the dried articles 30, and the easier it is to cause the clothes to be entangled. The speed switching process takes a long time, and the dried articles 30 will be accumulated in the lower part of the inner barrel for a long time, resulting in less contact between the clothes and the hot air during the switching process, and the hot air takes away less moisture from the dried articles 30. The mass transfer and heat exchange effect is greatly affected, and the drying time is increased. The first switching time and the second switching time can be set according to the weight value, the outer diameter value and the drying angle to reduce the entanglement when there are more dried articles 30 and improve the drying uniformity.

[0135] Specifically, step S430 may include step S431, step S432, step S433, step S436, step S437 and step S438. Step S431, step S432 and step S433 are specific methods for setting the first duration, and step S436, step S437 and step S438 are specific methods for setting the second duration.

[0136] See also Figure 6 , Figure 6 The flowchart is from step S431 to step S433. Step S431, the first forward rotation speed of the drying machine 20 is set according to the outer diameter value and the drying angle.

[0137] Among them, the control logic of step S431 is the same as that of step S411, and the calculation of the first rotation speed can refer to step S411, which will not be repeated here.

[0138] Step S432, setting the third coefficient according to the weight value.

[0139] Among them, the third coefficient is the switching time coefficient from forward to reverse. If the third coefficient is smaller, the acceleration of the forward and reverse switching is greater, the capacity requirement of the drum 21 driving motor is higher, the inertial acceleration of the dried clothes 30 is greater, and it is easier to cause the clothes to be entangled.

[0140] If the third coefficient is too large, the speed switching process takes a long time, and the clothes to be dried 30 will be piled up in the lower part of the inner drum for a long time, resulting in less contact between the clothes and the hot air during the switching process, and the hot air takes away less moisture from the clothes to be dried 30. This greatly affects the mass transfer and heat exchange effect, and increases the drying time.

[0141] The speed switches from forward to reverse rotation, and the speed can be transitioned linearly or in other functional forms. However, when the speed is close to 0 rpm, the time used should be as short as possible. That is, the time used to switch from the first speed of 0.5 times to the second speed of -0.5 times should be less than half of the first switching time, so as to reduce the time that the objects to be dried 30 are accumulated under the inner barrel due to the low speed.

[0142] In order to balance the negative impact caused by the third coefficient being too small or too large, it is recommended that the third coefficient be in the range of 0.1 to 3; when there are fewer clothes to be dried 30 in the barrel and the humidity is low, and the weight in the barrel is light, the third coefficient can take a smaller value; if there are more clothes to be dried 30 in the barrel and the humidity is high, and the weight is heavy, the third coefficient can take a larger value to reduce entanglement when there are more clothes to be dried 30 and improve drying uniformity.

[0143] It should be noted that the larger weight in the drum includes two situations: one is that there are more clothes to be dried, and the other is that the humidity of the clothes to be dried 30 is higher. Similarly, the smaller weight in the drum includes two situations: one is that there are fewer clothes to be dried, and the other is that the humidity of the clothes to be dried 30 is lower. By setting the third coefficient according to the weight value in the drum 21, the control accuracy can be improved.

[0144] That is to say, the same object 30 to be dried has different weights due to different humidity levels before and after drying. The different states of the same object 30 to be dried also lead to different weights. During the drying process, a real-time weight value can be obtained once. After each real-time weight value is obtained, the third coefficient is set according to the real-time weight value.

[0145] In other words, if the weight value is a constant value, that is, the initial weight, the third coefficient only needs to be set once according to the weight value during the drying process for the same object to be dried 30. If the weight value is a real-time weight, the third coefficient needs to be set once after each real-time weight is obtained.

[0146] For example, a sensor can be set in the drum 21 to detect the weight value of the object to be dried 30. When the weight value is less than or equal to 2Kg, the third coefficient is 0.5; when the weight value is greater than 2Kg, the third coefficient is 1; when the weight value is greater than 5Kg, the third coefficient is 2.

[0147] Step S433, setting a first switching time according to the third coefficient and the first rotation speed.

[0148] Similarly, the third coefficient can be considered as the number of revolutions of the drum 21 during the process of switching from forward rotation to reverse rotation. The first switching time can be set according to the following formula:

[0149] T3=K3*n1 / 60 ;

[0150] Wherein, T3 is the first switching time, n1 is the first rotation speed, and K3 is the third coefficient.

[0151] Specifically, when the weight value is less than or equal to 2Kg, the third coefficient is 0.5, and the first switching time is approximately 0.5s; when the weight value is greater than 2Kg, the third coefficient is 1, and the first switching time is approximately 1s; when the weight value is greater than 5Kg, the third coefficient is 2, and the first switching time is approximately 2s.

[0152] By setting the first switching time according to the weight value of the object to be dried 30 in the drum 21, the time for which the object to be dried 30 is accumulated at the bottom of the drum 21 during the shaking process can be reduced, thereby improving the mass transfer and heat exchange between the object to be dried 30 and the hot air. At the same time, it can also reduce the entanglement caused by the inertial force during the switching from forward rotation to reverse rotation, thereby improving the uniformity of drying.

[0153] See also Figure 7 , Figure 7 This is a flow chart of step S436 to step S438. Step S436, setting the second forward rotation speed of the drying machine 20 according to the outer diameter value and the drying angle.

[0154] Among them, the control logic of step S436 is the same as that of step S416, and the calculation of the second speed can refer to step S416, which will not be repeated here.

[0155] Step S437, setting the fourth coefficient according to the weight value.

[0156] Among them, the fourth coefficient is the switching time coefficient from reverse rotation to forward rotation. If the fourth coefficient is smaller, the acceleration of the forward and reverse switching is greater, the capacity requirement of the drum 21 driving motor is higher, the inertial acceleration of the clothes to be dried 30 is greater, and it is easier to cause the clothes to be entangled.

[0157] If the fourth coefficient is too large, the speed switching process takes a long time, and the clothes to be dried 30 will be piled up in the lower part of the inner drum for a long time, resulting in less contact between the clothes and the hot air during the switching process, and the hot air takes away less moisture from the clothes to be dried 30. This greatly affects the mass transfer and heat exchange effect, and increases the drying time.

[0158] The speed switches from reverse rotation to forward rotation, and the speed can be transitioned linearly or in other functional forms. However, when the speed is close to 0 rpm, the time used should be as short as possible. That is, the time used to switch from the second speed of 0.5 times to the first speed of -0.5 times should be less than half of the second switching time, so as to reduce the time that the objects to be dried 30 are accumulated under the inner barrel due to the low speed.

[0159] In order to balance the negative impact caused by the fourth coefficient being too small or too large, it is recommended that the fourth coefficient be in the range of 0.1 to 3; when there are fewer clothes to be dried 30 in the barrel and the humidity is low, and the weight in the barrel is light, the fourth coefficient can take a smaller value; if there are more clothes to be dried 30 in the barrel and the humidity is high, and the weight is heavy, the fourth coefficient can take a larger value to reduce entanglement when there are more clothes to be dried 30 and improve drying uniformity.

[0160] It should be noted that the larger weight in the drum includes two situations: one is that there are more clothes to be dried, and the other is that the humidity of the clothes to be dried 30 is higher. Similarly, the smaller weight in the drum includes two situations: one is that there are fewer clothes to be dried, and the other is that the humidity of the clothes to be dried 30 is lower. By setting the fourth coefficient according to the weight value in the drum 21, the control accuracy can be improved.

[0161] That is to say, the same object 30 to be dried has different weights due to different humidity levels before and after drying. The different states of the same object 30 to be dried also lead to different weights. During the drying process, a real-time weight value can be obtained once. After each real-time weight value is obtained, the fourth coefficient is set according to the real-time weight value.

[0162] In other words, if the weight value is a constant value, that is, the initial weight, the fourth coefficient only needs to be set once according to the weight value during the drying process for the same object to be dried 30. If the weight value is a real-time weight, the fourth coefficient needs to be set once after each real-time weight is obtained.

[0163] For example, a sensor can be set in the drum 21 to detect the weight value of the object to be dried 30. When the weight value is less than or equal to 2Kg, the fourth coefficient is 0.5; when the weight value is greater than 2Kg, the fourth coefficient is 1; when the weight value is greater than 5Kg, the fourth coefficient is 2.

[0164] Step S438, setting a second switching time according to the fourth coefficient and the second speed.

[0165] Similarly, the fourth coefficient can be regarded as the number of revolutions of the drum 21 during the process of switching from reverse rotation to forward rotation. The second switching time is set according to the following formula:

[0166] T4=K4*n2 / 60 ;

[0167] Wherein, T3 is the first switching time, n1 is the first rotation speed, n2 is the second rotation speed, K4 is the fourth coefficient, and T4 is the second switching time.

[0168] Specifically, when the weight value is less than or equal to 2Kg, the fourth coefficient is 0.5, and the second switching time is approximately 0.5s; when the weight value is greater than 2Kg, the fourth coefficient is 1, and the second switching time is approximately 1s; when the weight value is greater than 5Kg, the fourth coefficient is 2, and the second switching time is approximately 2s.

[0169] The second switching time is set according to the weight value of the object to be dried 30 in the drum 21, which can reduce the time the object to be dried 30 is accumulated at the bottom of the drum 21 during the shaking process, improve the mass transfer and heat exchange between the object to be dried 30 and the hot air, and also reduce the entanglement caused by the inertial force during the switching from forward rotation to reverse rotation, thereby improving the uniformity of drying.

[0170] In some embodiments, during the drying of the same object 30 to be dried, the third coefficient and the fourth coefficient may be set to be the same or different. When the third coefficient and the fourth coefficient are set to be the same, the first switching time and the second switching time may be the same. When the third coefficient and the fourth coefficient are set to be different, the first switching time and the second switching time may be different. In other words, whether the third coefficient and the fourth coefficient are the same may not be limited. That is, whether the first switching time and the second switching time are the same may not be limited.

[0171] like Figure 8 As shown, Figure 8 The figure is a graph of the humidity of the hot air from the air outlet of the drum 21 and the running time during the drying process, wherein the x-axis represents the running time, and the y-axis represents the humidity of the air blown out of the air outlet after the hot air and the object to be dried 30. Of the two curves in the figure, a is a graph of the humidity of the hot air from the air outlet of the drum 21 and the running time during the execution of the drying control method provided in the embodiment of the present application. b is the curve value of the humidity of the hot air from the air outlet of the drum 21 and the running time in the relevant calculation. It can be seen from the figure that in the process of drying the object to be dried 30 by the drying control method provided in the embodiment of the present application, the humidity of the hot air coming out of the drum is increased from the original about 50% to 70%, indicating that the amount of moisture brought out by the hot air after passing through the clothes in the drum is greatly increased. This can speed up the drying time, improve the drying uniformity of the object to be dried 30, and improve the drying efficiency of the dryer 20.

[0172] In the embodiment of the present application, the drying control method provided in the embodiment of the present application can set the duration and switching time of the forward and reverse rotation of the drum 21 in real time according to the running time of the dryer 20 and the weight value of the dryer 20, so as to maximize the contact area between the object to be dried 30 and the hot air under different humidity conditions, reduce the time for the object to be dried 30 to accumulate at the bottom, increase the contact area between the object to be dried 30 and the hot air, and improve the moisture-carrying capacity of the hot air, thereby shortening the drying time.

[0173] See also Fig. 9 , Fig. 9 1 is a block diagram of the composition of the drying control device 10. Based on the same inventive concept, the embodiment of the present application also provides a drying control device 10, which is applied to a drying machine 20, and the drying machine 20 includes a drum 21 for accommodating objects 30 to be dried. The drying control device 10 includes:

[0174] The first acquisition module 11 is used to acquire the running time of the dryer 20 .

[0175] Step S100 of the drying control method provided in the embodiment of the present application may be executed by the first acquisition module 11 .

[0176] The second acquisition module 12 is used to acquire the outer diameter value of the roller 21 .

[0177] Step S200 of the drying control method provided in the embodiment of the present application may be executed by the second acquisition module 12 .

[0178] The third acquisition module 13 is used to acquire the weight value and drying angle of the object to be dried 30 in the dryer 20. The drying angle represents the angle between the highest point of the object to be dried 30 and the highest point of the drum 21;

[0179] Step S300 of the drying control method provided in the embodiment of the present application may be executed by the third acquisition module 13 .

[0180] The setting module 14 is used to set the operating parameters of the dryer 20 according to the operating time, outer diameter value, weight value and drying angle; wherein the operating parameters include a first duration of forward rotation, a second duration of reverse rotation, a first switching time from forward rotation to reverse rotation, and a second switching time from reverse rotation to forward rotation.

[0181] Step S400 and its sub-steps of the drying control method provided in the embodiment of the present application may be executed by the setting module 14 .

[0182] Based on the same inventive concept, an embodiment of the present application further provides a computer storage medium storing a computer program, which is executed by a controller to implement the above-mentioned drying control method.

[0183] Based on the same inventive concept, the embodiment of the present application further provides a dryer 20, including a controller, and the controller is used to execute a computer program to implement the above-mentioned drying control method.

[0184] The controller can be an integrated circuit chip with signal processing capability. The controller can be integrated on the dryer 20. The controller can be a general processor, including a central processing unit (CPU), a single chip microcomputer, a microcontroller unit (MCU), a complex programmable logic device (CPLD), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), an embedded ARM and other chips. The controller can implement or execute the disclosed methods, steps and logic diagrams in the embodiments of the present invention.

[0185] In a feasible implementation, the dryer 20 may further include a memory for storing program instructions executable by the controller. For example, the drying control device 10 provided in the embodiment of the present application includes at least one that can be stored in the memory in the form of software or firmware. The memory may be an independent external memory, including but not limited to a random access memory (RAM), a read only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), and an electrically erasable read-only memory (EEPROM). The memory may also be integrated with the controller, for example, the memory may be integrated with the controller in the same chip.

[0186] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0187] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0188] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A drying control method, characterized in that: Applied to a drying machine, the drying machine includes a drum for accommodating objects to be dried, and the drying control method includes: Obtaining the running time of the dryer; Obtaining the outer diameter value of the roller; Obtaining a weight value and a drying angle of the object to be dried in the dryer, wherein the drying angle represents an angle between the highest point of rotation of the object to be dried and the highest point of the drum; The operating parameters of the dryer are set according to the operating time, the outer diameter value, the weight value and the drying angle; wherein the operating parameters include a first duration of forward rotation, a second duration of reverse rotation, a first switching time from forward rotation to reverse rotation, and a second switching time from reverse rotation to forward rotation.

2. The drying control method according to claim 1, characterized in that: The step of setting the operating parameters of the dryer according to the operating time, the outer diameter value, the weight value and the drying angle comprises: The first duration and the second duration are set according to the running time, the outer diameter value and the drying angle; The first switching time and the second switching time are set according to the weight value, the outer diameter value and the drying angle.

3. The drying control method according to claim 1 or 2, characterized in that: The step of setting the first duration of the dryer according to the running time, the outer diameter value, the weight value and the drying angle comprises: Setting a first forward rotation speed of the dryer according to the outer diameter value and the drying angle; setting a first coefficient according to the running time; The first duration is set according to the first coefficient and the first rotation speed.

4. The drying control method according to claim 3, characterized in that: The first duration is calculated according to the following formula: T1 = K1*n1 / 60; Wherein, T1 is the first duration, n1 is the first rotation speed, and K1 is the first coefficient.

5. The drying control method according to claim 3, characterized in that: The first speed is calculated according to the following formula: Wherein, D is the weight value, n1 is the first rotation speed, α is the drying angle, and g is the gravitational acceleration.

6. The drying control method according to claim 3, characterized in that: The running time is negatively correlated with the first coefficient.

7. The drying control method according to claim 1 or 2, characterized in that: The step of setting the second duration of the dryer according to the running time, the outer diameter value, the weight value and the drying angle comprises: Setting a second forward rotation speed of the dryer according to the outer diameter value and the drying angle; setting a second coefficient according to the running time; The second duration is set according to the second coefficient and the second rotation speed.

8. The drying control method according to claim 7, characterized in that: The second duration is calculated according to the following formula: T2 = K2*n2 / 60; Wherein, T2 is the second duration, n2 is the second rotation speed, and K2 is the second coefficient.

9. The drying control method according to claim 7, characterized in that: The second speed is calculated according to the following formula: Wherein, D is the weight value, n2 is the second rotation speed, α is the drying angle, and g is the gravitational acceleration.

10. The drying control method according to claim 7, characterized in that: The running time is negatively correlated with the second coefficient.

11. The drying control method according to claim 1 or 2, characterized in that: The step of setting the first switching time of the dryer according to the running time, the outer diameter value, the weight value and the drying angle comprises: Setting a first forward rotation speed of the dryer according to the outer diameter value and the drying angle; setting a third coefficient according to the weight value; The first switching time is set according to the third coefficient and the first rotation speed.

12. The drying control method according to claim 11, characterized in that: The first switching time is set according to the following formula: T3 = K3 * n160; Wherein, T3 is the first switching time, n1 is the first rotation speed, and K3 is the third coefficient.

13. The drying control method according to claim 1 or 2, characterized in that: The step of setting the second switching time of the dryer according to the running time, the outer diameter value, the weight value and the drying angle comprises: Setting a second forward rotation speed of the dryer according to the outer diameter value and the drying angle; setting a fourth coefficient according to the weight value; The second switching time is set according to the fourth coefficient and the second rotation speed.

14. The drying control method according to claim 13, characterized in that: The second switching time is set according to the following formula: T4 = K4*n2 / 60; Among them, T3 is the first switching time, n1 is the first speed, n2 is the second speed, K4 is the fourth coefficient, and T4 is the second switching time.

15. A drying control device, characterized in that: Applied to a drying machine, the drying machine comprises a drum for accommodating objects to be dried, and the drying control device comprises: A first acquisition module, used for acquiring the running time of the dryer; A second acquisition module is used to acquire the outer diameter value of the roller; A third acquisition module is used to acquire the weight value and drying angle of the object to be dried in the dryer, wherein the drying angle represents the angle between the highest point of rotation of the object to be dried and the highest point of the drum; A setting module is used to set the operating parameters of the dryer according to the operating time, the outer diameter value, the weight value and the drying angle; wherein the operating parameters include a first duration of forward rotation, a second duration of reverse rotation, a first switching time from forward rotation to reverse rotation, and a second switching time from reverse rotation to forward rotation.

16. A computer storage medium, characterized in that: A computer program is stored, and when the computer program is executed by a processor, the drying control method according to any one of claims 1 to 14 can be implemented.

17. A drying machine, characterized in that: A controller is included, and the controller is used to execute a computer program to implement the drying control method according to any one of claims 1 to 14.

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