Control method of clothes airing machine and clothes airing machine

Abstract

The invention discloses a control method of a clothes airing machine and the clothes airing machine, and belongs to the technical field of clothes airing, the clothes airing machine comprises a lifting mechanism and a clothes airing rod, the lifting mechanism comprises a reel and a lifting rope wound on the reel, and the clothes airing rod is connected with the lifting rope; the control method of the clothes airing machine comprises the steps that in the ascending or descending process of a clothes airing rod, an angular velocity sensor obtains the angular velocity omega of a reel; the controller calculates the moving speed v through the formula v = omega r according to the angular speed omega and the winding radius r of the lifting rope, and the winding radius r of the lifting rope is the distance between the axis of the reel and the center line of the lifting rope in the radial direction of the reel; and the controller calculates the moving distance S of the clothes airing rod through a formula S = vt according to the moving time t of the clothes airing rod. The clothes airing machine is controlled by adopting the control method of the clothes airing machine. The moving speed of the lifting rope can be calculated more accurately, and then the moving distance of the clothes airing rod can be obtained more accurately.

Description

Technical Field

[0001] The present invention relates to the technical field of clothes drying, and in particular to a control method of a clothes drying machine and the clothes drying machine. Background Art

[0002] In the current electric clothes drying machine, the clothes drying rod can not only stop at the lowest position and the highest position, but also stop at any intermediate position between the lowest position and the highest position. As for the moving distance of the clothes drying rod, some are detected by a distance measuring module. By setting a reflector on the clothes drying rod, the distance measuring module measures the position of the clothes drying rod by transmitting a signal to the reflector and receiving the signal reflected by the reflector. However, the signal transmitted by the distance measuring module is easily blocked by foreign objects, resulting in inaccurate detection. Some detect the number of turns of the winding wheel, and then calculate the moving distance of the wire rope according to the length of the wire rope on each turn of the winding wheel. However, it is often the case that the winding wheel rotates less than one turn, resulting in the inability to accurately calculate the moving distance of the wire rope. Summary of the invention

[0003] The object of the present invention is to provide a control method of a clothes drying machine and a clothes drying machine, so as to solve the technical problem existing in the prior art that the moving distance of the clothes drying rod cannot be accurately obtained.

[0004] As conceived above, the technical solution adopted by the present invention is:

[0005] A control method for a clothes drying machine, the clothes drying machine comprising a lifting mechanism and a clothes drying rod, the lifting mechanism comprising a winding wheel and a lifting rope wound around the winding wheel, the clothes drying rod being connected to the lifting rope; the control method for the clothes drying machine comprising:

[0006] When the clothes drying rod is rising or falling, the angular velocity sensor obtains the angular velocity ω of the winding wheel;

[0007] The controller calculates the moving speed v according to the angular speed ω and the winding radius r of the lifting rope by the formula v=ωr, wherein the winding radius r of the lifting rope is the distance between the axis of the winding wheel and the center line of the lifting rope along the radial direction of the winding wheel;

[0008] The controller calculates the moving distance S of the clothes drying rod according to the moving time t of the clothes drying rod through the formula S=vt.

[0009] In the process of the clothes drying rod rising or falling, the current moving speed of the clothes drying rod is obtained in real time. If the controller does not receive a stop command and the moving speed exceeds a first set speed range, a first alarm signal is issued.

[0010] The current weight value G of the clothes drying rod is obtained in real time. When the first alarm signal is issued, if the weight value G is greater than the first weight threshold, a second alarm signal is issued.

[0011] Among them, the moving speed of the clothes rod has at least three gears. If the weight value G of the clothes rod is not less than the first set weight value, the controller controls the moving speed of the clothes rod to reduce one gear; if the weight value G of the clothes rod is not greater than the second set weight value, the controller controls the moving speed of the clothes rod to increase one gear.

[0012] Among them, an upper limit position and a lower limit position are set in the moving range of the clothesline, and the controller calculates the height h of the clothesline from the ground according to the height from the upper limit position or the lower limit position and the moving distance S of the clothesline.

[0013] Among them, the controller calculates the moving distance S0 of the clothes drying rod according to the received set height h0 and the current height of the clothes drying rod from the ground and controls the clothes drying rod to rise or fall. When the moving distance S is equal to S0, the controller controls the clothes drying rod to stop rising or falling.

[0014] The current weight value G of the clothes drying rod is obtained in real time. When the height h of the clothes drying rod from the ground is greater than the first set height h1, if the weight value G decreases instantly and the decrease value is greater than the second weight threshold, a third alarm signal is issued.

[0015] The clothes-drying rod has a plurality of clothes-drying positions, each of which is provided with a clothes-drying rack and a weight sensor, and the controller monitors the state of the clothes-drying rack according to the weight change of each of the clothes-drying racks.

[0016] There are two winding wheels, each of which is provided with a lifting rope, and the controller determines the degree of inclination of the clothes drying rod according to the difference in moving distances of the two lifting ropes.

[0017] A clothes drying machine is controlled by the control method of the clothes drying machine as described above. The clothes drying machine also includes a main body, and the winding wheel is rotatably arranged on the main body.

[0018] Beneficial effects of the present invention:

[0019] The control method of the clothes drying machine proposed in the present invention detects the angular velocity of the winding wheel and calculates the moving speed v in combination with the winding radius r of the lifting rope during the process of the clothes drying rod rising or falling, and then calculates the moving distance S of the clothes drying rod according to the moving time t of the clothes drying rod. The winding radius r of the lifting rope is the distance between the axis of the winding wheel and the center line of the lifting rope along the radial direction of the winding wheel, rather than the radius of the winding wheel. Therefore, the winding radius r of the lifting rope can more accurately calculate the moving speed of the lifting rope, and thus more accurately obtain the moving distance S of the clothes drying rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a schematic diagram of a partial structure of a clothes drying machine provided by an embodiment of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of a partial structure of a clothes drying machine provided by an embodiment of the present invention. Figure 2 ;

[0022] Figure 3 The process of the control method of the clothes drying machine provided by the embodiment of the present invention is Figure 1 ;

[0023] Figure 4 The process of the control method of the clothes drying machine provided by the embodiment of the present invention is Figure 2 ;

[0024] Figure 5 The process of the control method of the clothes drying machine provided by the embodiment of the present invention is Figure 3 .

[0025] In the figure:

[0026] 10. Main body;

[0027] 21. Winding wheel; 22. Lifting rope; 23. Motor; 24. Gear;

[0028] 30. Clothes drying pole;

[0029] 40. Angular velocity sensor. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0034] See also Figures 1 to 5 The embodiment of the present invention provides a clothes drying machine, including a main body 10, a lifting mechanism and a clothes drying rod 30. The lifting mechanism includes a winding wheel 21 and a lifting rope 22 wound around the winding wheel 21. The winding wheel 21 is rotatably arranged on the main body 10, and the clothes drying rod 30 is connected to the lifting rope 22. The winding wheel 21 can rotate forward or reverse. When the winding wheel 21 rotates forward, the lifting rope 22 is released and the clothes drying rod 30 descends; when the winding wheel 21 reverses, the lifting rope 22 is recovered and the clothes drying rod 30 rises.

[0035] Among them, the rotation of the winding wheel 21 can be driven by the motor 23 and the gear mechanism. The gear mechanism includes a gear 24 coaxially arranged with the winding wheel 21. The motor 23 drives the gear 24 to rotate, thereby driving the winding wheel 21 to rotate. The forward or reverse rotation of the motor 23 realizes the forward or reverse rotation of the winding wheel 21.

[0036] An embodiment of the present invention provides a method for controlling a clothes drying machine, comprising:

[0037] When the clothes drying rod 30 is rising or falling, the angular velocity sensor 40 obtains the angular velocity ω of the winding wheel 21;

[0038] The controller calculates the moving speed v according to the angular speed ω and the winding radius r of the lifting rope 22 by the formula v=ωr. The winding radius r of the lifting rope 22 is the distance between the axis of the winding wheel 21 and the center line of the lifting rope 22 along the radial direction of the winding wheel 21.

[0039] The controller calculates the moving distance S of the clothes drying rod 30 according to the moving time t of the clothes drying rod 30 by using the formula S=vt.

[0040] The clothes drying machine further includes an angular velocity sensor 40 for obtaining the angular velocity of the winding wheel 21. According to the radius of the winding wheel 21, the linear velocity of the winding wheel 21 can be calculated by a formula. In order to accurately obtain the moving speed of the lifting rope 22 and obtain the winding radius r of the lifting rope 22, the controller calculates the moving speed v by the formula v=ωr according to the angular velocity ω and the winding radius r of the lifting rope 22. The winding radius r of the lifting rope 22 is the distance between the axis of the winding wheel 21 and the center line of the lifting rope 22 along the radial direction of the winding wheel 21.

[0041] Generally, a winding groove is provided on the outer circumference of the winding wheel 21, and the lifting rope 22 is wound in the winding groove. The winding groove can arrange the lifting rope 22 in a fixed position in order to avoid entanglement, which is conducive to controlling the retraction and release of the lifting rope 22. Due to the setting of the winding groove, the radius of the center line of the lifting rope 22 in the winding groove may be smaller than the radius of the winding wheel 21, so the linear speed of the lifting rope 22 can be calculated more accurately by using the winding radius r of the lifting rope 22.

[0042] The angular velocity sensor 40 obtains the angular velocity of the reel 21, which can be obtained directly or indirectly. The direct acquisition method is: the angular velocity sensor 40 is set on the reel 21, and the angular velocity of the reel 21 is directly detected by the angular velocity sensor 40. The indirect acquisition method is: the angular velocity sensor 40 is set on the gear 24 coaxial with the reel 21, and the angular velocity of the gear 24 is directly detected by the angular velocity sensor 40. Since the gear 24 is coaxial with the reel 21, the angular velocities of the two are equal.

[0043] In this embodiment, two winding wheels 21 are provided, each of which is provided with a lifting rope 22. The controller determines the inclination degree of the clothes drying rod 30 according to the difference in the moving distances of the two lifting ropes 22. Each winding wheel 21 is provided with an angular velocity sensor 40, and when the difference in the moving distances of the two lifting ropes 22 is greater than a first set threshold, a first alarm message is issued.

[0044] Normally, the clothes drying rod 30 moves at a constant speed, but in abnormal circumstances, such as when the clothes drying rod 30 is moving, there is a stall or a malfunction, which may cause the clothes drying rod 30 to suddenly stop or suddenly drop.

[0045] During the process of the clothes drying rod 30 rising or falling, the current moving speed of the clothes drying rod 30 is obtained in real time. If the controller does not receive the stop command and the moving speed exceeds the first set speed range, a first alarm signal is issued. If the controller does not receive the stop command, that is, the clothes drying rod 30 has not moved to the set height, but the moving speed exceeds the first set speed range, that is, the moving speed decreases or increases, it must be an abnormality, and the first alarm signal is issued to facilitate the user to handle it in time.

[0046] The moving speed exceeds the first set speed range, which is divided into the moving speed being less than the lower limit of the first set speed range or the moving speed being greater than the upper limit of the first set speed range. For these two situations, the first alarm signal may be different.

[0047] After the first alarm signal is issued, the clothes drying rod 30 stops rising or stopping falling. Specifically, the controller can control the motor 23 to cut off the power.

[0048] The clothes drying machine further includes a gravity sensor, and a plurality of gravity sensors may be provided. The gravity sensor is electrically connected to the controller, so that the controller can obtain gravity information. In this embodiment, the gravity sensor can detect the weight of the clothes drying rod 30. It can be understood that when clothes are not hung, the clothes drying rod 30 has an initial weight value. After the clothes are hung, the weight value of the clothes drying rod 30 increases. As the clothes are dried or the clothes are increased or decreased, the weight value of the clothes drying rod 30 will change to a certain extent.

[0049] The current weight value G of the clothes drying rod 30 is obtained in real time. When the first alarm signal is issued, if the weight value G is greater than the first weight threshold, a second alarm signal is issued. When the first alarm signal is issued, it indicates that the moving speed has changed, which may increase or decrease. The weight value G is greater than the first weight threshold, which indicates that the weight value G suddenly increases and almost exceeds the bearing limit. There may be a child suddenly pulling the clothes drying rod 30 or other abnormal situations. By issuing the second alarm signal, it is convenient for the user to handle it in time.

[0050] The first alarm signal and the second alarm signal may exist at the same time, or the first alarm signal may stop when the second alarm signal is issued.

[0051] In the moving stroke of the clothes rod 30, an upper limit position and a lower limit position are set. When the clothes rod 30 rises to the highest set point, it is at the upper limit position. When the clothes rod 30 falls to the lowest set point, it is at the lower limit position. The distance between the upper limit position and the lower limit position is the limit stroke of the clothes rod 30.

[0052] A first limit switch is provided at the upper limit position, and a second limit switch is provided at the lower limit position. When the clothes drying rod 30 is rising or falling, if the first limit switch is triggered, the clothes drying rod 30 reaches the upper limit position and stops rising, and if the second limit switch is triggered, the clothes drying rod 30 reaches the lower limit position and stops falling. The first limit switch and the second limit switch are both existing micro switches.

[0053] The controller calculates the height h of the clothes drying rod 30 from the ground according to the height from the upper limit position or the lower limit position, combined with the moving distance S of the clothes drying rod 30. The height from the ground at the upper limit position is defined as H1. When the clothes drying rod 30 moves downward from the upper limit position by a distance S, the height h of the clothes drying rod 30 from the ground is equal to HS.

[0054] In some embodiments, the controller controls the clothes drying rod 30 to rise, fall or stop according to the received rising instruction, falling instruction or stop instruction. In some embodiments, the controller calculates the moving distance S0 of the clothes drying rod 30 and controls the clothes drying rod 30 to rise or fall according to the received set height h0 and the current height of the clothes drying rod 30 from the ground, and when the moving distance S is equal to S0, the controller controls the clothes drying rod 30 to stop rising or stopping falling.

[0055] Usually, the movement or stop of the clothes drying rod 30 is controlled by a mobile terminal, which may be a remote control or a mobile phone app. In some embodiments, a display interface is provided on the mobile terminal. When the user inputs an ascending instruction, a descending instruction or a stop instruction, the controller controls the clothes drying rod 30 to ascend, descend or stop, and displays the current height of the clothes drying rod 30 from the ground. In some embodiments, an input interface is provided on the mobile terminal. After the user inputs a height value, the controller controls the clothes drying rod 30 to ascend or descend according to the current position of the clothes drying rod 30. The height value entered by the user is the set height h of the clothes drying rod 30 from the ground. The controller controls the clothes drying rod 30 to ascend or descend according to the current position of the clothes drying rod 30 and the set height h of the clothes drying rod 30 from the ground.

[0056] For example, the height from the ground at the upper limit position is 2.5m. When the clothes drying rod 30 is at the upper limit position, after the user inputs a height value of 1.2m, the controller receives a set height h0 of 1.2m. The controller calculates the moving distance S0 of the clothes drying as 1.3m based on the current height of the clothes drying rod 30 from the ground of 2.5m and controls the clothes drying rod 30 to descend. When the moving distance S is equal to 1.3m, the controller controls the clothes drying rod 30 to stop descending. After the user takes or places clothes, after the user inputs a height value of 2.0m, the controller receives a set height h0 of 2.0m. The controller calculates the moving distance S0 of the clothes drying as 0.8m based on the current height of the clothes drying rod 30 from the ground of 1.2m and controls the clothes drying rod 30 to ascend. When the moving distance S is equal to 0.8m, the controller controls the clothes drying rod 30 to stop ascending.

[0057] The clothes drying rod 30 provided in this embodiment can stop at the upper limit position, the lower limit position, and any position between the upper limit position and the lower limit position. According to the height H1 of the upper limit position and the height H2 of the lower limit position, the height h of the clothes drying rod 30 from the ground is within a first set height range. When the height from the ground input by the user exceeds the first set height range, the controller issues a first prompt message.

[0058] When the clothes drying rod 30 stops at the upper limit position or the lower limit position, the moving distance of the clothes drying rod 30 is reset to avoid deviation during operation. Each time the clothes drying rod 30 stops, when it moves again, the current position is used as a reference.

[0059] The current weight value G of the clothes drying rod 30 is obtained in real time. When the height h of the clothes drying rod 30 from the ground is greater than the first set height h1, if the weight value G decreases instantly and the decrease value is greater than the second weight threshold, a third alarm signal is issued. The height h of the clothes drying rod 30 from the ground is greater than the first set height h1, which means that the clothes drying rod 30 is located at a high position and it is inconvenient for the user to reach out and take the clothes off. If the weight value G decreases instantly, it may be that the clothes have fallen. The decrease value is greater than the second weight threshold, and the possibility of the clothes falling is very high. Therefore, the third alarm signal is issued to facilitate the user to handle it in time.

[0060] In some embodiments, the moving speed of the clothes drying rod 30 has at least three gears. If the weight value G of the clothes drying rod 30 is not less than the first set weight value, the controller controls the moving speed of the clothes drying rod 30 to decrease by one gear; if the weight value G of the clothes drying rod 30 is not greater than the second set weight value, the controller controls the moving speed of the clothes drying rod 30 to increase by one gear. When the weight value G is large, the stability of the clothes drying rod 30 is ensured by reducing the speed, and when the weight value G is small, the clothes drying efficiency is ensured by increasing the speed.

[0061] In some embodiments, the clothes drying rod 30 has a plurality of clothes drying positions, each of which is provided with a clothes drying rack and a weight sensor, and the controller monitors the status of the clothes drying rack according to the weight change of each clothes drying rack. By monitoring each clothes drying rack, the detection is more accurate, and whether each clothes drying rack has clothes to dry and whether it is dry can be accurately detected.

[0062] It can be understood that when clothes are not hung, the clothes rack has an initial weight value, after the clothes are hung, the weight value of the clothes rack increases, and as the clothes are dried, the weight value of the clothes rack decreases.

[0063] The current weight value M of the clothes drying rack is obtained. If the weight value M of the clothes drying rack instantly increases to be greater than M1, and the weight value M gradually decreases to M2 and remains unchanged within the first set time period, the clothes on the clothes drying rack are dried.

[0064] The current weight value M of the clothes drying rack is obtained in real time. When the height h of the clothes drying rod 30 from the ground is greater than the first set height h1, if the weight value M of the clothes drying rack decreases instantly and the decrease value is greater than the first threshold, a third alarm signal is issued.

[0065] In some embodiments, each clothes drying rack can be raised and lowered in the vertical direction relative to the clothes drying rod 30, and the controller controls the position of the clothes drying rack to be raised and lowered according to the weight change of each clothes drying rack. Different clothes drying racks can be located at different heights, so that the clothes are staggered with each other, which is more convenient for clothes drying.

[0066] The current weight value M of the clothes drying rack is obtained in real time. If the weight value M of the clothes drying rack increases to be greater than M1 instantly, and the weight value M gradually decreases to M2 and remains unchanged within the first set time, the clothes on the clothes drying rack are dried. The controller controls the clothes drying rack to descend a first set distance, which is convenient for users to see in time which clothes on the clothes drying rack have been dried, and on the other hand, the clothes drying rack is lowered by descending, which is convenient for users to take away clothes.

[0067] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for controlling a clothes drying machine, characterized in that: The clothes drying machine comprises a lifting mechanism and a clothes drying rod, wherein the lifting mechanism comprises a winding wheel and a lifting rope wound around the winding wheel, and the clothes drying rod is connected to the lifting rope; the control method of the clothes drying machine comprises: When the clothes drying rod is rising or falling, the angular velocity sensor obtains the angular velocity ω of the winding wheel; The controller calculates the moving speed v according to the angular speed ω and the winding radius r of the lifting rope by the formula v=ωr, wherein the winding radius r of the lifting rope is the distance between the axis of the winding wheel and the center line of the lifting rope along the radial direction of the winding wheel; The controller calculates the moving distance S of the clothes drying rod according to the moving time t of the clothes drying rod through the formula S=vt.

2. The control method of the clothes drying machine according to claim 1, characterized in that: When the clothes drying rod is rising or falling, the current moving speed of the clothes drying rod is obtained in real time. If the controller does not receive a stop command and the moving speed exceeds a first set speed range, a first alarm signal is issued.

3. The control method of the clothes drying machine according to claim 2, characterized in that: The current weight value G of the clothes drying rod is obtained in real time. When the first alarm signal is issued, if the weight value G is greater than the first weight threshold, a second alarm signal is issued.

4. The control method of the clothes drying machine according to claim 1, characterized in that: The moving speed of the clothes rod has at least three gears. If the weight value G of the clothes rod is not less than the first set weight value, the controller controls the moving speed of the clothes rod to decrease by one gear; if the weight value G of the clothes rod is not greater than the second set weight value, the controller controls the moving speed of the clothes rod to increase by one gear.

5. The control method of the clothes drying machine according to claim 1, characterized in that: In the movement stroke of the clothes drying rod, an upper limit position and a lower limit position are set. The controller calculates the height h of the clothes drying rod from the ground according to the height from the upper limit position or the lower limit position from the ground and the movement distance S of the clothes drying rod.

6. The control method of the clothes drying machine according to claim 5, characterized in that: The controller calculates the moving distance S0 of the clothes drying rod according to the received set height h0 and the current height of the clothes drying rod from the ground and controls the clothes drying rod to rise or fall. When the moving distance S is equal to S0, the controller controls the clothes drying rod to stop rising or falling.

7. The control method of the clothes drying machine according to claim 5, characterized in that: The current weight value G of the clothes drying rod is obtained in real time. When the height h of the clothes drying rod from the ground is greater than the first set height h1, if the weight value G decreases instantly and the decrease value is greater than the second weight threshold, a third alarm signal is issued.

8. The control method of the clothes drying machine according to claim 1, characterized in that: The clothes drying rod has a plurality of clothes drying positions, each of which is provided with a clothes drying rack and a weight sensor, and a controller monitors the state of the clothes drying rack according to the weight change of each clothes drying rack.

9. The control method of the clothes drying machine according to any one of claims 1 to 8, characterized in that: There are two winding wheels, each of which is provided with a lifting rope, and the controller determines the degree of inclination of the clothes drying rod according to the difference in moving distances of the two lifting ropes.

10. A clothes drying machine, characterized in that: The clothes drying machine is controlled by the control method of any one of claims 1 to 9, wherein the clothes drying machine further comprises a main body, and the winding wheel is rotatably arranged on the main body.

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