Clothes drying machine and overweight recognition method thereof

Abstract

The clothes airing machine and the overweight identification method thereof, the overweight identification method comprising: acquiring a current first tension borne by a first rope and a current second tension borne by a second rope; acquiring a first gravity center position corresponding to the current first tension according to a corresponding relationship between the first tension and the gravity center position of an article with a preset threshold weight hung on a clothes airing rod; and confirming that the article currently hung on the clothes airing rod is overweight based on the second tension borne by the second rope being less than the current second tension when the article with the preset threshold weight is hung on the clothes airing rod at the first gravity center position. The accuracy of the overweight detection of the article on the clothes airing rod by using the overweight identification method is not affected by the uniformity of the distribution of the article on the clothes airing rod, i.e. not affected by the gravity center position of the article, and not affected by the inclination of the machine body of the clothes airing machine, and the overweight identification accuracy is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, and in particular to an airer and an overload identification method thereof. BACKGROUND

[0002] In the use of an airer, uneven drying of clothes on the drying rod of the airer and overloading of the airer are common problems in daily use of the airer. Excessively heavy clothes can exert excessive pressure on the mechanical structure of the airer, possibly causing damage to mechanical components and even triggering safety problems.

[0003] Existing airers are provided with a load weighing system for detecting whether the load of the airer exceeds a safe load threshold. However, many existing airer load weighing systems are relatively difficult to maintain and repair due to their complex structure and design. Meanwhile, the weighing accuracy of the load weighing system of the existing airer is not accurate, for example, the error is more than 5 kg, which limits the actual number of clothes that can be hung by the user when using the airer. SUMMARY

[0004] The present application provides an overload identification method of an airer, the airer comprising a drying rod and a first pull rope and a second pull rope connected to both ends of the drying rod, the first pull rope and the second pull rope suspending the drying rod;

[0005] The overload identification method comprises:

[0006] obtaining a current first pulling force borne by the first rope and a current second pulling force borne by the second rope;

[0007] obtaining a first center of gravity position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the center of gravity position of an article with a preset threshold weight hung by the drying rod;

[0008] confirming that the article currently hung by the drying rod is overloaded based on the fact that the second pulling force borne by the second rope when the article with the preset threshold weight is hung by the drying rod at the first center of gravity position is less than the current second pulling force.

[0009] In an illustrative embodiment, the obtaining of the first center of gravity position corresponding to the current first pulling force comprises:

[0010] The first center of gravity position is calculated using the following formula:

[0011]

[0012] L'2 is the distance between the center of gravity of the article and the second rope in the direction parallel to the clothes rail, representing the first center of gravity position of the article; F'1 is the current first pulling force; L0 is the distance between the first rope and the second rope; and G is a preset threshold value.

[0013] In an illustrative embodiment, the second pulling force of the second rope when the clothes rail suspends the article with the preset threshold value of the weight at the first center of gravity position is calculated by using the following formula:

[0014]

[0015] F'2 is the second pulling force of the second rope when the clothes rail suspends the article with the preset threshold value of the weight at the first center of gravity position; L'2 is the distance between the center of gravity of the article and the second rope in the direction parallel to the clothes rail, representing the first center of gravity position; L0 is the distance between the first rope and the second rope; and G is a preset threshold value.

[0016] In an illustrative embodiment, the step of comparing the second pulling force of the second rope when the clothes rail suspends the article with the preset threshold value of the weight at the first center of gravity position with the current second pulling force comprises:

[0017] The first ratio X1 is calculated by using the following formula:

[0018]

[0019] X1 is the first ratio; F"2 is the current second pulling force; L0 is the distance between the first rope and the second rope; and L'2 is the distance between the center of gravity of the article and the second rope in the direction parallel to the clothes rail, representing the first center of gravity position;

[0020] The second ratio X2 is calculated by using the following formula:

[0021]

[0022] G is a preset threshold value; and L0 is the distance between the first rope and the second rope.

[0023] Based on the first ratio X1 being greater than the second ratio X2, it is confirmed that the second pulling force of the second rope when the clothes rail suspends the article with the preset threshold value of the weight at the first center of gravity position is less than the current second pulling force.

[0024] In an illustrative embodiment, it further comprises, after confirming that the article currently suspended by the clothes rail is overweight, issuing an alarm information for reminding the user that the article currently suspended by the clothes rail is overweight.

[0025] In an illustrative embodiment, the alarm information is sound information and / or light information.

[0026] In an illustrative embodiment, when the second tension of the second rope is greater than or equal to the current second tension based on the clothes hanger hanging the article with a weight equal to the preset threshold at the first barycenter position, the step of obtaining the current first tension of the first rope and the current second tension of the second rope is re-entered.

[0027] The present application also provides an overweight identification method of a clothes hanger, the clothes hanger comprising a clothes hanger rod and a first rope and a second rope connected to both ends of the clothes hanger rod, the first rope and the second rope hanging the clothes hanger rod;

[0028] The overweight identification method comprises:

[0029] obtaining a current first tension of the first rope and a current second tension of the second rope;

[0030] determining a current article weight corresponding to the current first tension and the current second tension based on a preset corresponding relationship between the first tension, the second tension and the article weight, the current first tension and the current second tension;

[0031] confirming that the article currently hung on the clothes hanger rod is overweight based on the current article weight being greater than a preset threshold.

[0032] The present embodiment also provides a clothes hanger, which comprises:

[0033] a machine body;

[0034] a hoisting mechanism arranged on the machine body and provided with a first rope and a second rope;

[0035] a clothes hanger rod arranged below the machine body and connected to the first rope and the second rope at both ends, respectively;

[0036] a load weighing assembly comprising a first load cell for detecting a first tension of the first rope and a second load cell for detecting a second tension of the second rope; and

[0037] a controller electrically connected to the first load cell and the second load cell;

[0038] The controller is configured to perform the overweight identification method as described above.

[0039] In an illustrative embodiment, the clothes hanger further comprises an alarm device electrically connected to the controller, the alarm device being capable of sending alarm information for reminding a user that the article currently hung is overweight.

[0040] In an illustrative embodiment, the machine body is provided with a first pulley and a second pulley arranged at intervals, the first rope extends to the clothes hanger by passing around the first pulley, and the second rope extends to the clothes hanger by passing around the second pulley.

[0041] The first load sensor is arranged at the first pulley, and the second load sensor is arranged at the second pulley.

[0042] In the technical solution of the application, when the first clothes hanger suspends an object with a preset threshold weight, the first load sensor obtains a first load corresponding to the first clothes hanger, and the second load sensor obtains a second load corresponding to the second clothes hanger. The first load sensor obtains a first gravity center position corresponding to the first load, and the second load sensor obtains a second gravity center position corresponding to the second load. The second load sensor obtains a second load corresponding to the first gravity center position of the object with the preset threshold weight suspended by the first clothes hanger, and compares the second load with the current second load. If the current second load is larger, it indicates that the object currently suspended exceeds the preset threshold, and the clothes hanger is overloaded.

[0043] The accuracy of the overload detection of the object suspended on the clothes hanger by using the overload identification method is not affected by the uniformity of the distribution of the object on the clothes hanger, i.e., the gravity center position of the object, and the inclination of the machine body of the clothes hanger, such as the inclination of the machine body of the clothes hanger when the ceiling is inclined. In this case, the accuracy of the overload detection is not affected. Therefore, the overload identification method can accurately determine whether the object suspended on the clothes hanger is overloaded.

[0044] Other features and advantages of the application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the application. Other advantages of the application can be realized and obtained by means of the solutions described in the specification and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0045] The accompanying drawings are used to provide an understanding of the technical solutions of the application, and constitute a part of the specification, and are used to explain the technical solutions of the application together with the embodiments of the application, and do not constitute a limitation on the technical solutions of the application.

[0046] Figure 1 Fig. 1 is a force diagram of a clothes hanger according to an embodiment of the application;

[0047] Figure 2 Fig. 3 is a flowchart of an overload identification method of a clothes hanger according to an embodiment of the application;

[0048] Figure 3 Fig. 4 is a flowchart of an overload identification method of a clothes hanger according to an embodiment of the application. DETAILED DESCRIPTION

[0049] The present application describes a plurality of embodiments, but the description is exemplary rather than limiting, and it will be apparent to those of ordinary skill in the art that there can be many embodiments and implementations within the scope of the embodiments described in the present application. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Unless specifically intended otherwise, any feature or element of any embodiment can be used with any other feature or element of any other embodiment, or in combination with any other feature or element of any other embodiment, or in the place of any other feature or element of any other embodiment.

[0050] The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features, and elements disclosed in the present application can also be combined with any conventional features or elements to form unique inventive solutions. Any feature or element of any embodiment can also be combined with features or elements from other inventive solutions to form another unique inventive solution. Therefore, it should be understood that any feature shown and / or discussed in the present application can be implemented alone or in any appropriate combination. Accordingly, the embodiments are not to be restricted, except as by the appended claims and their equivalents. Additionally, various modifications and changes can be made within the scope of the claims.

[0051] Furthermore, in describing representative embodiments, the specification can have presented the method and / or process as a particular sequence of steps. However, to the extent that the method or process depends on more than one step, the method or process should not be limited to the particular sequence of steps described. Other sequences of steps can be possible, and are within the scope of the embodiments. Therefore, the particular order in which the steps are presented in the specification is not an limitation on the claims. Additionally, the claims should not be limited to the steps in accordance with the order of presentation of such steps unless the specific order is explicitly recited.

[0052] In the related art, when the load is hung on the clothes drying rod of the clothes drying machine, the center of gravity of the whole clothes drying machine hanging system will be offset due to uneven distribution of the load on the clothes drying rod of the clothes drying machine, and the displacement of the hanging system is also different, thereby causing the weighing accuracy of the load weighing system to be inaccurate. Based on this, the present application proposes the following clothes drying machine and its overload identification method.

[0053] Embodiment one

[0054] As Figure 1 shown, Figure 1The structure of a clothes airing machine 100 in this embodiment is shown. The clothes airing machine 100 includes a machine body 1, a clothes airing rod 2, a hoisting mechanism, a load weighing assembly, an alarm device and a controller.

[0055] The machine body 1 is usually fixed on the ceiling. The clothes airing rod 2 is arranged below the machine body 1. The hoisting mechanism is arranged on the machine body 1. The hoisting mechanism is provided with a first rope 3 and a second rope 4. One end of the first rope 3 extends downward from the machine body 1 and is connected to one end of the clothes airing rod 2. One end of the second rope 4 extends downward from the machine body 1 and is connected to the other end of the clothes airing rod 2. The first rope 3 and the second rope 4 hoist the clothes airing rod 2. The clothes airing rod 2 exerts a pulling force on the first rope 3 and the second rope 4. The hoisting mechanism can lift and lower the height of the clothes airing rod 2 by synchronously winding and unwinding the first rope 3 and the second rope 4. The extension direction of the clothes airing rod 2 is usually arranged to extend in the horizontal direction. The extension direction of the part of the first rope 3 and the second rope 4 between the clothes airing rod 2 and the machine body 1 is usually arranged to extend in the vertical direction. The clothes airing rod 2 can hang clothes, and the clothes are usually unevenly hung on the clothes airing rod 2.

[0056] The load weighing assembly includes a first load sensor and a second load sensor. The first load sensor is used to detect a first pulling force borne by the first rope 3. The second load sensor is used to detect a second pulling force borne by the second rope 4. In some embodiments, the machine body 1 is provided with a first pulley and a second pulley, and the first pulley and the second pulley are arranged in a spaced manner. The first rope 3 extends to the clothes airing rod 2 by passing around the first pulley, and the second rope 4 extends to the clothes airing rod 2 by passing around the second pulley. The first load sensor is arranged at the first pulley, and the second load sensor is arranged at the second pulley.

[0057] The alarm device is used to issue alarm information. The alarm device can be provided with a loudspeaker or a buzzer, and the alarm information is issued in the form of sound through the loudspeaker or the buzzer. The alarm device can also be provided with a warning light, and the alarm information can be issued in the form of light, for example, the warning light flashes red light.

[0058] The controller is a logic control unit of the clothes airing machine 100, and the controller can be a single-chip microcomputer or an embedded computer. The controller is electrically connected to the alarm device and the first load sensor and the second load sensor of the load weighing assembly.

[0059] As shown in Figure 2 This embodiment also proposes an overloading identification method of the clothes airing machine 100, and the overloading identification method is based on the above-mentioned clothes airing machine 100. The overloading identification method includes steps S1-S3.

[0060] Step S1: acquiring a current first pulling force borne by the first rope 3 and a current second pulling force borne by the second rope 4, and entering step S2;

[0061] The controller measures the current first tension by the first load sensor and measures the current second tension by the second load sensor. The current first tension is the actual tension currently borne by the first rope 3. The current second tension is the actual tension currently borne by the second rope 4.

[0062] Step S2: According to the correspondence between the first tension and the barycentric position of the article 200 when the clothes rail 2 suspends the article 200 with a preset threshold weight, the first barycentric position corresponding to the current first tension is obtained, and step S3 is entered.

[0063] The preset threshold is a preset value, which can be set by a person. The preset threshold can be the safe load threshold, which is the highest weight that the clothes drying machine 100 can safely bear under normal use conditions. The size of the safe load threshold is related to the carrying capacity of the clothes drying machine 100. The greater the carrying capacity of the clothes drying machine 100, the greater the safe load threshold.

[0064] The barycentric position of the article 200 can be represented as the distance between the barycenter of the article 200 and the second rope 4 in the direction parallel to the clothes rail 2.

[0065] In some embodiments, the relationship between the first tension and the barycentric position of the article 200 can also be established according to the force analysis model of the clothes rail 2, the first tension rope and the second tension rope when the article 200 with a weight equal to the preset threshold is hung on the clothes rail 2:

[0066]

[0067] Wherein, L2 is the distance between the barycenter of the article 200 and the second rope 4 in the direction parallel to the clothes rail 2, with the unit of m, representing the barycentric position of the article 200; L0 is the distance between the first rope 3 and the second rope 4, with the unit of m; G is the preset threshold, with the unit of N; F1 is the first tension, with the unit of N.

[0068] The correspondence between the first tension and the barycentric position of the article 200 when the clothes rail 2 suspends the article 200 with a preset threshold weight can be represented by the relationship between the first tension and the barycentric position of the article 200.

[0069] The above formula (1) is pre-stored in the controller, and the current first tension is substituted into formula (1) to obtain the first barycentric position of the article 200 corresponding to the current first tension:

[0070]

[0071] F1' is a current first tension, in N; L'2 is a distance between the gravity center of the article 200 and the second rope 4 in a direction parallel to the clothes drying rod 2, in m, representing a first gravity center position of the article 200; L0 is a distance between the first rope 3 and the second rope 4, in m; and G is a preset threshold, in N.

[0072] In some other embodiments, a test piece can be prepared in advance, the weight of the test piece being equal to the preset threshold of the clothes drying rod 2, and the test piece being regular in shape, for example, spherical, so as to facilitate determination of the gravity center position of the test piece. Under experimental conditions, the test piece with the weight equal to the preset threshold is hung at different positions of the clothes drying rod 2, so as to measure the first tension borne by the first rope 3 and the second tension borne by the second rope 4 when the gravity center of the test piece is located at different positions. After a plurality of groups of the first tension and the second tension corresponding to the gravity center of the test piece at different gravity center positions are measured, a relationship curve of the first tension and the gravity center position of the article 200 and a relationship curve of the second tension and the gravity center position of the article 200 can be fitted. The corresponding relationship between the first tension and the gravity center position of the article 200 when the clothes drying rod 2 suspends the article 200 with the weight equal to the preset threshold can be represented by the relationship curve of the first tension and the gravity center position of the article 200. The corresponding relationship between the first tension and the gravity center position of the article 200 when the clothes drying rod 2 suspends the article 200 with the weight equal to the preset threshold is stored in the controller in advance.

[0073] The relationship curve of the first tension and the gravity center position of the article 200 is stored in the controller in advance. The controller can obtain the first gravity center position corresponding to the current first tension according to the relationship curve of the first tension and the gravity center position of the article 200 and the current first tension.

[0074] Step S3: comparing the second tension borne by the second rope 4 when the clothes drying rod 2 suspends the article 200 with the weight equal to the preset threshold at the first gravity center position with the current second tension, so as to determine whether the article 200 currently suspended by the clothes drying rod 2 is overweight;

[0075] When the second tension borne by the second rope 4 when the clothes drying rod 2 suspends the article 200 with the weight equal to the preset threshold at the first gravity center position is greater than or equal to the current second tension, it is confirmed that the article 200 currently suspended by the clothes drying rod 2 is not overweight.

[0076] When the second tension borne by the second rope 4 when the clothes drying rod 2 suspends the article 200 with the weight equal to the preset threshold at the first gravity center position is less than the current second tension, it is confirmed that the article 200 currently suspended by the clothes drying rod 2 is overweight.

[0077] The correspondence between the second tension of the second rope 4 and the center of gravity of the article 200 when the article 200 with the preset threshold weight is hung on the clothes rail 2 can be a relationship curve between the second tension and the center of gravity. The correspondence can also be a relationship between the second tension and the center of gravity of the article 200 established according to a force analysis model of the clothes rail 2, the first tension rope and the second tension rope when the article 200 with the preset threshold weight is hung on the clothes rail 2. The controller can obtain the second tension of the second rope 4 when the article 200 with the preset threshold weight is hung on the clothes rail 2 at the first center of gravity according to the correspondence.

[0078] In some embodiments, the relationship between the second tension and the center of gravity of the article 200 established according to a force analysis model of the clothes rail 2, the first tension rope and the second tension rope when the article 200 with the preset threshold weight is hung on the clothes rail 2 is:

[0079]

[0080] wherein L2 is the distance between the center of gravity of the article 200 and the second rope 4 in the direction parallel to the clothes rail 2, and represents the center of gravity of the article 200, with the unit of m; L0 is the distance between the first rope 3 and the second rope 4, with the unit of m; G is the preset threshold, with the unit of N; and F2 is the second tension, with the unit of N.

[0081] The distance L0 between the first rope 3 and the second rope 4 and the preset threshold G are known quantities.

[0082] The controller pre-stores the above formula (3), and the first center of gravity of the article 200 is substituted into the formula (3) to obtain the second tension corresponding to the first center of gravity of the article 200:

[0083]

[0084] wherein F'2 is the second tension corresponding to the first center of gravity of the article 200, i.e. the second tension of the second rope 4 when the article 200 with the preset threshold weight is hung on the clothes rail 2 at the first center of gravity, with the unit of N; L'2 is the distance between the center of gravity of the article 200 and the second rope 4 in the direction parallel to the clothes rail 2, and represents the first center of gravity of the article 200, with the unit of m; L0 is the distance between the first rope 3 and the second rope 4, with the unit of m; and G is the preset threshold, with the unit of N.

[0085] In the technical scheme of the embodiment, the first rope 3 bears the first tension force when the clothes hanger 2 suspends the article 200 with a weight reaching the preset threshold value, the corresponding relationship between the first tension force and the first gravity center position of the article 200 is obtained, the first gravity center position corresponding to the current first tension force is obtained, the second rope 4 bears the second tension force when the gravity center of the article 200 with the weight reaching the preset threshold value is at the first gravity center position, the second tension force is compared with the current second tension force, and if the current second tension force is larger, it indicates that the currently suspended article 200 has exceeded the preset threshold value, and the clothes hanger is overloaded.

[0086] The accuracy of the overloading detection of the article 200 on the clothes hanger 2 by using the overloading identification method is not affected by the uniformity of the distribution of the article 200 on the clothes hanger 2, that is, not affected by the gravity center position of the article 200, and not affected by the inclination of the machine body 1 of the clothes hanger 100, for example, the machine body 1 of the clothes hanger 100 is inclined when the ceiling is inclined, and the overloading detection accuracy is not affected in this case. Therefore, the overloading identification method can accurately determine whether the article 200 suspended on the clothes hanger 2 is overloaded.

[0087] Meanwhile, the clothes hanger 100 using the overloading identification method only needs to set two weighing sensors to measure the tension forces borne by the first and second ropes, the structure of the clothes hanger 100 is relatively simple, the complexity of the structure of the clothes hanger 100 is reduced, and the manufacturing cost of the clothes hanger 100 is reduced.

[0088] In an illustrative embodiment, in step S3, the step of comparing the second tension force borne by the second rope 4 when the clothes hanger 2 suspends the article 200 with a weight reaching the preset threshold value at the first gravity center position with the current second tension force includes steps S31-S35.

[0089] Step S31: the first ratio X1 is calculated by using the following formula:

[0090]

[0091] Wherein, X1 is the first ratio; F″2 is the current second tension force, unit: N; L0 is the distance between the first rope 3 and the second rope 4, unit: m; L′2 is the distance between the gravity center of the article 200 and the second rope 4 in the direction parallel to the clothes hanger 2, unit: m, representing the first gravity center position of the article 200.

[0092] Step S32: the second ratio X2 is calculated by using the following formula:

[0093]

[0094] Wherein, G is a preset threshold, unit is N; L0 is the distance between the first rope 3 and the second rope 4, unit is m.

[0095] Step S33: Determine whether the first ratio X1 is greater than the second ratio X2, if yes, go to step S34, otherwise go to step S35;

[0096] Step S34: Confirm that the second tension of the second rope 4 when the clothes rail 2 suspends the article 200 with a preset threshold weight at the first center of gravity position is less than the current second tension, and the article 200 currently suspended by the clothes rail 2 is overweight.

[0097] Step S35: Confirm that the second tension of the second rope 4 when the clothes rail 2 suspends the article 200 with a preset threshold weight at the first center of gravity position is greater than or equal to the current second tension, and the article 200 currently suspended by the clothes rail 2 is not overweight.

[0098] When the first ratio X1 is greater than the second ratio X2, that is:

[0099] X1>X2 (7)

[0100] The formula (5) and the formula (6) are brought into the above inequality (7) to obtain:

[0101]

[0102] That is,

[0103]

[0104] The formula (4) is brought into the formula (9) to obtain:

[0105] F2″>F2′

[0106] Wherein, F2″ is the current second tension, unit is N; F2′ is the second tension corresponding to the first center of gravity position of the article 200, unit is N.

[0107] It can be seen that when the first ratio X1 is greater than the second ratio X2, the second tension F2′ of the second rope 4 when the clothes rail 2 suspends the article 200 with a preset threshold weight at the first center of gravity position is less than the current second tension F2″. Conversely, when the first ratio X1 is less than or equal to the second ratio X2, the second tension F2′ of the second rope 4 when the clothes rail 2 suspends the article 200 with a preset threshold weight at the first center of gravity position is greater than or equal to the current second tension F2″.

[0108] In an illustrative embodiment, the overweight identification method further comprises step S4. Step S3 further comprises: after determining that the article 200 currently suspended by the clothes rail 2 is overweight, going to step S4;

[0109] Step S4: issuing an alarm information.

[0110] The controller can drive the alarm device to issue an alarm information after determining that the current clothes hung on the clothes rail 2 is overweight. The alarm information can be sound information and / or light information. The alarm information is used to remind the user that the current clothes hung on the clothes rail 2 is overweight.

[0111] The clothes drying machine 100 reminds the user that the current clothes hung on the clothes rail 2 is overweight by sending the alarm information, so that the user can reduce the weight in time to avoid the clothes drying machine 100 from being damaged.

[0112] In an illustrative embodiment, step S3 further comprises: re-entering step S1 after determining that the current clothes hung on the clothes rail 2 is not overweight.

[0113] The controller re-acquires the current first tension of the first rope 3 and the current second tension of the second rope 4 by the first weighing sensor and the second weighing sensor respectively after determining that the current clothes hung on the clothes rail 2 is not overweight, and then performs a new round of identification of the clothes 200 being overweight, so as to realize real-time monitoring of the clothes 200 being overweight.

[0114] Embodiment Two

[0115] As shown in Figure 3 Embodiment Two further proposes an overweight identification method of a clothes drying machine. The structure of the clothes drying machine in Embodiment Two is the same as that of the clothes drying machine 100 in Embodiment One, and will not be described again.

[0116] The overweight identification method comprises the following steps:

[0117] Step S1a: acquiring the current first tension of the first rope 3 and the current second tension of the second rope 4, and entering step S2a;

[0118] The controller measures the current first tension by the first weighing sensor and measures the current second tension by the second weighing sensor. The current first tension is the actual tension currently borne by the first rope 3. The current second tension is the actual tension currently borne by the second rope 4.

[0119] Step S2a: based on the preset corresponding relationship between the first tension, the second tension and the weight of the clothes, the current first tension and the current second tension, acquiring the current weight of the clothes corresponding to the current first tension and the current second tension, and entering step S3a;

[0120] The first tension and the second tension of the first rope and the second rope when the different-weighted article 200 is hung at different positions (i.e. different gravity centers) of the clothes drying machine 2 can be predicted in experimental conditions or by mechanical simulation analysis of the clothes drying machine 100, and the first tension and the second tension corresponding to the different-weighted article 200 hung at different positions of the clothes drying machine 2 are recorded. Then, the corresponding relationship between the first tension and the second tension and the article weight is established according to the first tension and the second tension corresponding to the different-weighted article 200 hung at different positions of the clothes drying machine 2. The corresponding relationship can be stored in the form of a table, for example, stored as (x1, y1, z1), (x2, y2, z2), (x3, y3, z3)…(xi, yi, zi), wherein xi is the value of the first tension of the i-th, yi is the value of the second tension of the i-th, and zi is the article weight corresponding to the first tension of the i-th and the second tension of the i-th. The corresponding relationship can be pre-stored in the controller.

[0121] After the current first tension and the current second tension are obtained, the controller finds an article weight corresponding to the current first tension and the current second tension in the corresponding relationship between the first tension, the second tension and the article weight according to the current first tension and the current second tension, and the article weight is the current article weight. The current article weight is the actual weight of the article 200 hung on the clothes drying machine 100.

[0122] Step S3a: determining whether the current article weight is greater than a preset threshold value, if yes, entering step S4a, otherwise entering step S1a;

[0123] The preset threshold value is a preset value, which can be set by a person. The preset threshold value can be the safe load threshold value, which is the highest weight that the clothes drying machine 100 can safely bear under normal use conditions. The size of the safe load threshold value is related to the carrying capacity of the clothes drying machine 100, and the greater the carrying capacity of the clothes drying machine 100, the greater the safe load threshold value.

[0124] Step S4a: confirming that the article 200 currently hung on the clothes drying machine 2 is overweight.

[0125] In this way, the current article weight corresponding to the current first tension and the current second tension can be obtained according to the measured current first tension and the current second tension, the current article weight is the actual weight of the article 200 currently hung by the clothes drying machine 100, and the current article weight is compared with the preset threshold value, so that it can be determined that the article currently hung by the clothes drying machine 2 is overweight when the current article weight is greater than the preset threshold value. The accuracy of the overweight identification method for detecting the overweight of the article 200 on the clothes drying machine 2 is not affected by the uniformity of the distribution of the article 200 on the clothes drying machine 2, that is, the position of the center of gravity of the article 200, so that the overweight identification method can accurately determine whether the article 200 hung on the clothes drying machine 2 is overweight.

[0126] In an exemplary embodiment, the overweight identification method further includes step S5a. Step S4a further includes: after determining that the article 200 currently hung by the clothes drying rod 2 is overweight, entering step S5a.

[0127] Step S5a: issuing an alarm information.

[0128] After determining that the article 200 currently hung by the clothes drying rod 2 is overweight, the controller can drive the alarm device to issue an alarm information. The alarm information can be sound information and / or light information. The alarm information is used to remind the user that the article 200 currently hung is overweight.

[0129] The clothes drying machine 100 reminds the user that the article 200 currently hung is overweight by sending the alarm information, so that the user can reduce the weight in time, thereby avoiding damage to the clothes drying machine 100.

[0130] Those of ordinary skill in the art will realize and understand that all or some of the steps in the methods disclosed above and the functional modules / units in the systems and devices can be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementation, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component can have multiple functions, or one function or step can be performed by several physical components in cooperation. Some or all of the components can be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on computer-readable media, which can include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term "computer storage media" includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and that can be accessed by a computer. Furthermore, it is common and well understood by those of ordinary skill in the art that communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and can include any information delivery media.

Claims

1. A method of overload recognition of a clothes drying machine, characterized in that, The clothes airing machine comprises a clothes airing rod and first and second pull ropes connected to both ends of the clothes airing rod, and the first and second pull ropes hoist the clothes airing rod; The overweight identification method comprises: obtaining a current first pulling force borne by the first rope and a current second pulling force borne by the second rope; obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; confirming that the article currently hung by the clothes airing rod is overweight based on the fact that the second pulling force borne by the second rope when the article hung by the clothes airing rod has the preset threshold weight at the first gravity center position is less than the current second pulling force.

2. The super-resolution method of claim 1, wherein, The overweight identification method comprises: obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; 3. The super-resolution method of claim 2, wherein, confirming that the article currently hung by the clothes airing rod is overweight based on the fact that the second pulling force borne by the second rope when the article hung by the clothes airing rod has the preset threshold weight at the first gravity center position is less than the current second pulling force. The overweight identification method comprises:

4. The super-resolution method of claim 1, wherein, obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; confirming that the article currently hung by the clothes airing rod is overweight based on the fact that the second pulling force borne by the second rope when the article hung by the clothes airing rod has the preset threshold weight at the first gravity center position is less than the current second pulling force. The overweight identification method comprises: obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; 5. The super-resolution method according to any one of claims 1 to 4, characterized in that, confirming that the article currently hung by the clothes airing rod is overweight based on the fact that the second pulling force borne by the second rope when the article hung by the clothes airing rod has the preset threshold weight at the first gravity center position is less than the current second pulling force.

6. The super-resolution method of claim 5, wherein, The overweight identification method comprises:

7. The super-resolution method according to any one of claims 1 to 4, wherein, obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; 8. A method of overload recognition of a clothes drying machine, characterized in that, obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; confirming that the article currently hung by the clothes airing rod is overweight based on the fact that the second pulling force borne by the second rope when the article hung by the clothes airing rod has the preset threshold weight at the first gravity center position is less than the current second pulling force. The overweight identification method comprises: obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; confirming that the article currently hung by the clothes airing rod is overweight based on the fact that the second pulling force borne by the second rope when the article hung by the clothes airing rod has the preset threshold weight at the first gravity center position is less than the current second pulling force. The overweight identification method comprises: obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; confirming that the article currently hung by the clothes airing rod is overweight based on the fact that the second pulling force borne by the second rope when the article hung by the clothes airing rod has the preset threshold weight at the first gravity center position is less than the current second pulling force. The overweight identification method comprises: obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; obtaining a first gravity center position corresponding to the current first pulling force according to a corresponding relationship between the first pulling force and the gravity center position of the article hung by the clothes airing rod when the article has a preset threshold weight; confirming that the article currently hung by the clothes airing rod is overweight based on the fact that the second pulling force borne by the second rope when the article hung by the clothes airing rod has the preset threshold weight at the first gravity center position is less than the current second pulling force. Based on the preset correspondence between the first tension, the second tension and the weight of the article, the current first tension and the current second tension, the current article weight corresponding to the current first tension and the current second tension is obtained; Based on the current article weight being greater than a preset threshold, it is determined that the article currently hung on the clothes rail is overweight.

9. A clothes drying machine characterised in that, Comprise: A machine body; A hoisting mechanism arranged on the machine body, provided with a first rope and a second rope; A clothes rail arranged below the machine body, and the two ends of the clothes rail are connected to the first rope and the second rope respectively; A load weighing assembly comprising a first load sensor for detecting the first tension received by the first rope and a second load sensor for detecting the second tension received by the second rope; And A controller electrically connected to the first load sensor and the second load sensor; Wherein, the controller is configured to execute the overweight identification method as claimed in any one of claims 1 to 8.

10. The clothes drying machine according to claim 9, characterized in that, Further comprising an alarm device electrically connected to the controller, the alarm device can issue alarm information for reminding the user that the currently hung article is overweight.

11. The clothes drying machine according to claim 9, characterized in that, The machine body is provided with a first pulley and a second pulley arranged at intervals, the first rope extends to the clothes rail by passing through the first pulley, and the second rope extends to the clothes rail by passing through the second pulley; The first load sensor is arranged at the first pulley, and the second load sensor is arranged at the second pulley.

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