Drying control device, method and drying rack

Abstract

The present invention discloses a drying control device, method and drying rack, belonging to the technical field of intelligent household appliances. The drying control device of the present invention is provided with a detection module, a control module and a drying module connected in sequence, the detection module includes multiple groups of detection electrodes, each group of detection electrodes includes at least two detection electrodes; the control module generates a control signal to perform alternating control on the multiple groups of detection electrodes in the detection module; the detection module performs detection switching according to the control signal, detects the object to be dried, obtains a voltage signal value, and transmits the voltage signal value to the control module; the control module calculates the current resistance value according to the voltage signal value, and generates a corresponding control instruction to the drying module according to the current resistance value; the drying module is turned on or off according to the control instruction, and alternately detects through multiple groups of detection electrodes or a single detection electrode in each group of detection electrodes, which effectively improves the detection accuracy, and can also avoid the polarization of the detection point after long-term use, thereby extending the life of the detection electrode.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent household appliances, and in particular to a drying control device, method and drying rack. Background Art

[0002] Current drying racks, such as towel racks or clothing racks, control the heating body through the control board circuit to energize the fan, which blows out hot air to heat and dry the drying rack. When the user needs to dry clothes, towels or other objects that need to be dried, click the mode button on the operation panel to enter the hot air drying mode. When the user needs to stop drying, click the power button on the operation panel to turn off the heating.

[0003] The humidity detection of the object to be dried can realize automatic control of the drying state of the object to be dried, which can avoid the machine from working after the object to be dried is dried, thereby achieving the effect of saving electricity.

[0004] The traditional way to detect the humidity of the object to be dried is to use a single humidity sensor for detection. Due to the long-term use of a single humidity sensor, ion migration will occur, the sensing contacts are prone to crystallization or contact electrolysis, resulting in inaccurate detection or failure. Summary of the invention

[0005] The main purpose of the present invention is to provide a drying control device, method and drying rack, aiming to solve the technical problem that the humidity sensor used in the prior art is not accurate enough in detecting the drying state of the object to be dried.

[0006] To achieve the above object, the present invention provides a drying control device, the drying control device comprising: a detection module, a control module and a drying module connected in sequence, the detection module comprising a plurality of detection electrodes, each detection electrode group comprising at least two detection electrodes;

[0007] The control module is used to generate a control signal to perform alternating control on the multiple groups of detection electrodes in the detection module;

[0008] The detection module is used to perform detection switching according to the control signal, detect the object to be dried, obtain a voltage signal value, and transmit the voltage signal value to the control module;

[0009] The control module is further used to calculate the current resistance value according to the voltage signal value, and generate a corresponding control instruction to the drying module according to the current resistance value;

[0010] The drying module is used to be turned on or off according to the control instruction.

[0011] Optionally, the detection electrodes are metal electrodes, and the detection electrodes are alternately and evenly distributed on the drying rod of the drying rack, and the detection module further includes: a photoresistor or a detection switch;

[0012] The photoresistor or the detection switch is used to detect whether there are objects to be dried on the drying rod of the drying rack.

[0013] Optionally, the drying module comprises: a heating body and a fan, and the heating body and the fan are respectively connected to the control module;

[0014] The heating body is used to turn on or off according to the control instruction;

[0015] The fan is used to be turned on or off according to the control instruction.

[0016] Optionally, the drying control device further comprises: a power module, the power module being connected to the control module;

[0017] The power supply module is used to provide power to the control module.

[0018] In addition, to achieve the above object, the present invention also provides a drying control method, the drying control method applies the drying control device described above, the drying control device comprises: a detection module, a control module and a drying module connected in sequence, the detection module comprises a plurality of detection electrodes, each detection electrode group comprises at least two detection electrodes; the method comprises the following steps:

[0019] The control module generates a control signal to perform alternating control on the multiple groups of detection electrodes in the detection module;

[0020] The detection module performs detection switching according to the control signal, detects the object to be dried, obtains a voltage signal value, and transmits the voltage signal value to the control module;

[0021] The control module calculates and detects the current resistance value according to the voltage signal value, and generates a corresponding control instruction to the drying module according to the current resistance value;

[0022] The drying module is turned on or off according to the control instruction.

[0023] Optionally, the detection module switches detection according to the control signal to detect the object to be dried, including:

[0024] The detection module switches detection among the multiple groups of detection electrodes according to the control signal, so as to switch different groups of detection electrodes to detect the objects to be dried;

[0025] or,

[0026] The detection module detects and switches in each group of detection electrodes according to the control signal, so as to switch different detection electrodes in the same group to detect the objects to be dried.

[0027] Optionally, the control module calculates and detects a current resistance value according to the voltage signal value, and generates a corresponding control instruction to the drying module according to the current resistance value, including:

[0028] The control module performs median filtering on the voltage signal value to obtain a processed voltage signal value;

[0029] Calculate the current resistance value according to the processed voltage signal value;

[0030] Generate corresponding control instructions to the drying module according to the current resistance value.

[0031] Optionally, generating a corresponding control instruction to the drying module according to the current resistance value includes:

[0032] Comparing the current resistance value with a preset resistance value;

[0033] Obtaining a first attribute value of a first control parameter and / or a second attribute value of a second control parameter according to the comparison result, wherein the first control parameter and the second control parameter are used to indicate the working state of the drying module;

[0034] Generate a corresponding control instruction to the drying module according to the first attribute value and / or the second attribute value.

[0035] Optionally, the preset resistance value includes a first preset resistance value;

[0036] The obtaining, according to the comparison result, a first attribute value of the first control parameter and / or a second attribute value of the second control parameter comprises:

[0037] When the current resistance value is greater than the first preset resistance value, obtaining a first attribute value of a first control parameter;

[0038] determining a first control parameter according to the first attribute value;

[0039] A closing instruction is generated to the drying module according to the first control parameter.

[0040] Optionally, the preset resistance value further includes: a second preset resistance value and a third preset resistance value, the second preset resistance value is smaller than the first preset resistance value, and the third preset resistance value is smaller than the second preset resistance value;

[0041] The obtaining, according to the comparison result, a first attribute value of the first control parameter and / or a second attribute value of the second control parameter comprises:

[0042] When the current resistance value is less than the first preset resistance value, comparing the current resistance value with the second preset resistance value and the third preset resistance value;

[0043] When the current resistance value is greater than the third preset resistance value and less than the second preset resistance value, obtaining a first attribute value of the first control parameter and a second attribute value of the second control parameter;

[0044] Determine a first control parameter and a second control parameter according to the first attribute value and the second attribute value;

[0045] An opening instruction is generated to the drying module according to the first control parameter and the second control parameter.

[0046] Optionally, obtaining a first attribute value of a first control parameter and / or a second attribute value of a second control parameter according to the comparison result includes:

[0047] When the current resistance value is greater than the second preset resistance value and less than the first preset resistance value, obtaining a first attribute value of the first control parameter and a second attribute value of the second control parameter;

[0048] Determine a first control parameter and a second control parameter according to the first attribute value and the second attribute value;

[0049] A closing instruction is generated to the drying module according to the first control parameter and the second control parameter.

[0050] In addition, to achieve the above-mentioned purpose, the present invention further provides a drying rack, which includes the drying control device or the drying control method described above.

[0051] The present invention provides a detection module, a control module and a drying module which are connected in sequence in a drying control device, wherein the detection module includes a plurality of detection electrodes, and each detection electrode group includes at least two detection electrodes; the control module is used to generate a control signal to perform alternating control on the plurality of detection electrodes in the detection module; the detection module is used to perform detection switching according to the control signal, detect the object to be dried, obtain a voltage signal value, and transmit the voltage signal value to the control module; the control module is also used to calculate the current resistance value according to the voltage signal value, and generate a corresponding control instruction to the drying module according to the current resistance value; the drying module is used to be turned on or off according to the control instruction, and can perform alternate detection through a plurality of detection electrodes or a single detection electrode in each detection electrode group, which can effectively improve the detection accuracy, and can also avoid the polarization of the detection point after long-term use, thereby extending the life of the detection electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a structural schematic diagram of a first embodiment of a drying control device of the present invention;

[0053] Figure 2 is a structural schematic diagram of a second embodiment of a drying control device of the present invention;

[0054] Figure 3 It is a schematic diagram of the overall structure of a drying rack in one embodiment of a drying control device of the present invention;

[0055] Figure 4 It is a structural schematic diagram of the first embodiment of the drying control method of the present invention;

[0056] Figure 5 It is a flow chart of the second embodiment of the drying control method of the present invention;

[0057] Figure 6 This is a schematic diagram of the overall process of an embodiment of the drying control method of the present invention;

[0058] Figure 7 It is a flow chart of the third embodiment of the drying control method of the present invention.

[0059] Description of Figure Numbers:

[0060] Label name Label name 10 Detection module 30 Drying module AN Multiple detection electrodes 301 Heating element <![CDATA[AN n ]]> Detection electrode 302 Fan 20 Control Module 40 Power Module

[0061] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0062] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0063] Reference Figure 1 , Figure 1 It is a structural schematic diagram of the first embodiment of the drying control device 1 of the present invention.

[0064] In this embodiment, the drying control device 1 includes: a detection module 10, a control module 20 and a drying module 30 connected in sequence, the detection module 10 includes multiple groups of detection electrodes AN, each group of detection electrodes AN includes at least two detection electrodes AN n .

[0065] It should be noted that the control module 20 is connected to the detection module 10 and the drying module 30 respectively. The control module 20 can control the detection module 10 to detect the objects to be dried, so as to obtain the detection results.

[0066] In specific implementations, the existing drying control rack uses a single sensor to detect resistance. When the sizes of the objects to be dried are different or the placement positions are offset, the contact between the objects to be dried and the installed single sensor is not sufficient, resulting in inaccurate detection results. In addition, the traditional resistance detection method uses a single sensor. As the use time increases, due to ion migration, the sensor contacts are prone to crystallization or contact electrolysis, which can also lead to inaccurate detection results or sensor failure.

[0067] The detection module 10 in this embodiment includes multiple groups of detection electrodes AN, and each group of detection electrodes AN includes at least two detection electrodes AN. n , N is the number of detection electrode groups, and n is the number of detection electrodes in each group. For example, each group of detection electrodes AN includes two detection electrodes or three detection electrodes, and this embodiment is not limited to this. This embodiment is described by taking each group of detection electrodes AN as an example including two detection electrodes: a first detection electrode AN1 and a second detection electrode AN2. For example, the first detection electrode in the first group of detection electrodes A1 is A11, and the second detection electrode is A12, and the first detection electrode in the second group of detection electrodes A2 is A21, and the second detection electrode is A22. The multiple groups of detection electrodes AN in the detection module 10 can be set on the drying rod of the drying rack, so as to detect the dryness and wetness of the objects to be dried on the drying rod of the drying rack.

[0068] Specifically, the detection electrode AN n Alternately and evenly distributed on the drying rack, due to the detection electrode AN n Evenly distributed on the drying rack, the detection electrode AN n It is in full contact with the objects to be dried and is less affected by air humidity or dust. No matter whether the objects to be dried are the same size or their positions are offset, the dryness or wetness of the objects to be dried can be accurately detected.

[0069] In this embodiment, the control module 20 is used to generate a control signal to perform alternating control on multiple groups of detection electrodes AN in the detection module 10; the detection module 10 is used to perform detection switching according to the control signal, detect the object to be dried, obtain a voltage signal value, and transmit the voltage signal value to the control module 20.

[0070] It should be noted that the control module 20 may be a control board, such as an MCU (Microcontroller Unit), or other units that can control the detection module 10 and the drying module 30, which is not limited in this embodiment. n The detection module 10 is connected and generates a control signal to perform alternating control on the multiple groups of detection electrodes AN in the detection module 10. The control signal can be a high-level control signal or a low-level control signal. By sending different control signals to the corresponding multiple groups of detection electrodes AN, the multiple groups of detection electrodes AN in the detection module 10 can be dynamically switched for alternating detection according to different control signals, so that the objects to be dried can be detected and the detected voltage signal value can be obtained.

[0071] In a specific implementation, the control module 20 is also used to calculate the current resistance value according to the voltage signal value, and generate a corresponding control instruction to the drying module 30 according to the current resistance value; the drying module 30 is used to turn on or off according to the control instruction.

[0072] It should be understood that after the control module 20 controls the detection module 10 to detect the object to be dried, it also receives the voltage signal value detected by the detection module 10, thereby calculating the corresponding current resistance value according to the detected voltage signal value. The state of the object to be dried can be determined according to the current resistance value, thereby generating a corresponding control instruction to the drying module, and the control instruction includes an opening instruction or a closing instruction, so that the drying module 30 can be controlled to be opened or closed according to the control instruction, automatically heating and drying the object to be dried and automatically powering off after drying, thereby realizing intelligent energy-saving control of the drying control device 1.

[0073] In this embodiment, a detection module 10, a control module 20 and a drying module 30 connected in sequence are arranged in the drying control device 1, wherein the detection module 10 includes a plurality of detection electrode groups AN, each detection electrode group AN includes at least two detection electrodes AN. n; The control module 20 is used to generate a control signal to perform alternating control on the multiple groups of detection electrodes AN in the detection module 10; the detection module 10 is used to perform detection switching according to the control signal, detect the object to be dried, obtain a voltage signal value, and transmit the voltage signal value to the control module 20; the control module 20 is also used to calculate the current resistance value according to the voltage signal value, and generate a corresponding control instruction to the drying module 30 according to the current resistance value; the drying module 30 is used to turn on or off according to the control instruction, which can be through multiple groups of detection electrodes AN or a single detection electrode AN in each group of detection electrodes AN n Alternating detection can effectively improve the detection accuracy and avoid polarization of the detection point after long-term use, thereby extending the detection electrode AN n life span.

[0074] Reference Figure 2 , Figure 2 It is a schematic structural diagram of the second embodiment of the drying control device of the present invention.

[0075] In this embodiment, the detection electrode AN n is a metal electrode, the detection electrode AN n Alternate and evenly distribute them on the drying rack's drying rod.

[0076] It should be understood that the detection electrode AN in this embodiment n The contact point is in contact with the object to be dried. The contact point is made of metal. The detection electrode AN n Metal electrodes have durable contacts and are easy to clean.

[0077] In a specific implementation, since the detection electrode AN n The electrodes AN are evenly distributed on the drying rack, and the contacts can be switched and controlled and detected alternately during detection, so that the level between the contacts changes repeatedly. When the control module 20 performs alternating control on the multiple detection electrodes AN, a control cycle can be set, and the control cycle can be divided into T x time slices, namely T1, T2, T3, ...T x-2 、T x-1 、T x , wherein, the control port of the control module 20 can be opened in the positive direction at the T1 time slice, T2~T x / 2 The control input is in high impedance state during the time slice, and the port of the control port is balanced. x / 2+1 The time slice is turned on in reverse, T x / 2+2 ~T xThe time slice control port input is in a high impedance state, the port of the control port is balanced, and it is circulated in sequence. Through the change and control of the electrode conduction timing, there will only be a short period of unilateral conduction, the migration effect of ions can be reduced to a minimum, contact electrolysis can be ignored, and the reliable working life can be greatly extended.

[0078] Specifically, the two detection electrodes AN1 and AN2 in each group of detection electrodes AN can also be controlled by the above control cycle to perform alternating control, for example, the first detection electrode AN1 in each group of detection electrodes AN is controlled to perform detection in the T1 time slice, and the second detection electrode AN2 in each group of detection electrodes AN is controlled to perform detection in the T2 time slice, etc. n Perform alternating switching control and detection to allow the level between contacts to change repeatedly, improve detection accuracy and extend the detection electrode AN n working life.

[0079] In a specific implementation, the detection module 10 further includes: a photoresistor or a detection switch; the photoresistor or the detection switch is used to detect whether there are objects to be dried on the drying rod of the drying rack.

[0080] It should be noted that the photoresistor or the detection switch can be set on the drying rod of the drying rack. For example, a photoresistor or a detection switch is distributed on each side of the drying rod of the drying rack. A photoresistor or a detection switch can also be set in the middle position of the drying rod of the drying rack. The photoresistor can detect whether there are objects to be dried on the drying rod of the drying rack according to whether the drying rod of the drying rack is covered by the objects to be dried. For example, when there are no objects to be dried on the drying rod of the drying rack, the dark resistance of the photoresistor is 5Ω. When there are objects to be dried on the drying rack, the dark resistance is greater than 5Ω. Therefore, the resistance value of the photoresistor can be used to detect in real time whether there are objects to be dried on the drying rod of the drying rack.

[0081] In this embodiment, the detection switch can be a pressure switch. For example, when there is no object to be dried on the drying rod of the drying rack, the detection value of the detection switch is 0. When there is an object to be dried on the drying rod of the drying rack, the detection value of the detection switch is greater than 0. The greater the weight of the object to be dried, the greater the detection value of the detection switch. Therefore, it is possible to detect whether there is an object to be dried on the drying rod of the drying rack based on the detection value of the detection switch. The presence of the object to be dried can be assisted by a photoresistor or a detection switch, which can improve the accuracy of the detection and the detection range of objects to be dried of different types and materials.

[0082] In this embodiment, the drying module 30 includes: a heating body 301 and a fan 302, and the heating body 301 and the fan 302 are respectively connected to the control module 20; the heating body 301 is used to turn on or off according to the control instruction; the fan 302 is used to turn on or off according to the control instruction.

[0083] It should be noted that the heating body 301 can heat the object to be dried when working, and the fan 302 can blow air to the object to be dried when working. The heating body 301 can be a PTC (Positive Temperature Coefficient) heating body, and the fan 302 can be an AC fan. The heating body 301 and the fan 302 are started at the same time to dry the object to be dried. The control instruction can be an on instruction or an off instruction. The heating body 301 and the fan 302 are controlled at the same time by the control instruction. When the control instruction is an on instruction, the heating body 301 and the fan 302 can be controlled to start working at the same time to dry the object to be dried. When the control instruction is an off instruction, the heating body 301 and the fan 302 can be controlled to close at the same time to stop drying the object to be dried, thereby realizing intelligent control of the object to be dried.

[0084] In this embodiment, the drying control device 1 further includes: a power module 40, the power module 40 is connected to the control module 20; the power module 40 is used to provide power to the control module 20. The power module 40 can be a power board, and the power module 40 provides power to the control module.

[0085] like Figure 3 As shown, Figure 3 This is a schematic diagram of the overall structure of the drying rack in this embodiment. The drying rack includes a control board in the control module 20, multiple groups of detection electrodes AN, a heating body 301, a fan 302 and a power board in the power module 40. The multiple groups of detection electrodes AN are evenly distributed on the drying rod. The control module 20 can be connected to the multiple groups of detection electrodes AN, the heating body 301 and the fan 302 respectively through signal lines, and is also connected to the power module 40 through a power line.

[0086] In this embodiment, the detection electrode AN is n Assuming a metal electrode, the detection electrode AN n The detection module 10 is evenly distributed alternately on the drying rod of the drying rack. The detection module 10 also includes: a photoresistor or a detection switch; the photoresistor or the detection switch is used to detect whether there is an object to be dried on the drying rod of the drying rack. The photoresistor or the detection switch can be used to perform auxiliary detection on the presence of the object to be dried, which can improve the detection accuracy and the detection range of objects to be dried of different types and materials.

[0087] In addition, to achieve the above purpose, the present invention also proposes a drying control method, referring to Figure 4 , Figure 4 It is a structural schematic diagram of the first embodiment of the drying control method of the present invention.

[0088] The drying control method applies the drying control device 1 described above, and the drying control device 1 comprises: a detection module 10, a control module 20 and a drying module 30 connected in sequence, and the detection module 10 comprises a plurality of detection electrode groups AN, each detection electrode group AN comprises at least two detection electrodes AN n , the method comprising:

[0089] Step S10 : the control module 20 generates a control signal to perform alternating control on the multiple groups of detection electrodes AN in the detection module 10 .

[0090] It should be noted that the control module 20 is connected to the detection module 10 and the drying module 30 respectively. The control module 20 can control the detection module 10 to detect the objects to be dried, so as to obtain the detection results.

[0091] In specific implementations, the existing drying control rack uses a single sensor to detect resistance. When the sizes of the objects to be dried are different or the placement positions are offset, the contact between the objects to be dried and the installed single sensor is not sufficient, resulting in inaccurate detection results. In addition, the traditional resistance detection method uses a single sensor. As the use time increases, due to ion migration, the sensor contacts are prone to crystallization or contact electrolysis, which can also lead to inaccurate detection results or sensor failure.

[0092] The control module 20 can generate a control signal to perform alternating control on the multiple groups of detection electrodes AN in the detection module 10 during operation, for example, by alternately changing the level state of the control signal, dividing the control period into T x time slices, namely T1, T2, T3, ...T x-2 , T x-1 , T x For example, in odd time zones such as T1, T3, and T5, the first group of detection electrodes A1, the third group of detection electrodes A3, the fifth group of detection electrodes A5, and other odd-numbered groups of detection electrodes AN are controlled to perform detection; in even time zones such as T2, T4, and T6, the second group of detection electrodes A2, the fourth group of detection electrodes A4, the sixth group of detection electrodes A6, and other even-numbered groups of detection electrodes AN are controlled to perform detection, and this embodiment does not impose any restrictions on this.

[0093] It should be noted that the control module 20 may be a control board, such as an MCU (Microcontroller Unit), or other units that can control the detection module 10 and the drying module 30, which is not limited in this embodiment. nThe detection module 10 is connected and generates a control signal to perform alternating control on the multiple groups of detection electrodes AN in the detection module 10. The control signal can be a high-level control signal or a low-level control signal. By sending different control signals to the corresponding multiple groups of detection electrodes AN, the multiple groups of detection electrodes AN in the detection module 10 can be dynamically switched for alternating detection according to different control signals, so that the objects to be dried can be detected and the detected voltage signal value can be obtained.

[0094] Step S20 : ​​the detection module 10 performs detection switching according to the control signal, detects the object to be dried, obtains a voltage signal value, and transmits the voltage signal value to the control module 20 .

[0095] It should be understood that each detection electrode AN in the detection module 10 n Alternately and evenly distributed on the drying rack, due to the detection electrode AN n Evenly distributed on the drying rack, the detection electrode AN n It is in full contact with the objects to be dried, and can accurately detect the dryness or wetness of the objects to be dried regardless of whether the objects to be dried are the same size or shifted in position.

[0096] The detection module 10 in this embodiment includes multiple groups of detection electrodes AN, and each group of detection electrodes AN includes at least two detection electrodes AN. n , N is the number of detection electrode groups, and n is the number of detection electrodes in each group. For example, each group of detection electrodes AN includes two detection electrodes or three detection electrodes, and this embodiment is not limited to this. This embodiment is described by taking each group of detection electrodes AN as an example including two detection electrodes: a first detection electrode AN1 and a second detection electrode AN2. For example, the first detection electrode in the first group of detection electrodes A1 is A11, and the second detection electrode is A12, and the first detection electrode in the second group of detection electrodes A2 is A21, and the second detection electrode is A22. The multiple groups of detection electrodes AN in the detection module 10 can be set on the drying rod of the drying rack, so as to detect the dryness and wetness of the objects to be dried on the drying rod of the drying rack.

[0097] Furthermore, the detection module 10 performs detection switching according to the control signal, and the step of detecting the object to be dried specifically includes: the detection module 10 performs detection switching among multiple groups of detection electrodes AN according to the control signal, so as to switch different groups of detection electrodes AN to detect the object to be dried;

[0098] It should be understood that the detection module 10 can switch the detection of different groups of detection electrodes AN according to the different levels of the control signal. For example, when the control module 20 inputs a high level, it controls the odd-group detection electrodes AN to detect the objects to be dried, and when the control module 20 inputs a low level, it controls the even-group detection electrodes AN to detect the objects to be dried. In this way, different groups of detection electrodes AN can be switched to detect the objects to be dried.

[0099] Furthermore, in addition to controlling different groups of detection electrodes AN to perform detection switching, different detection electrodes AN in the same group can also be controlled. n The detection module 10 performs detection switching according to the control signal, and the step of detecting the object to be dried may also include: the detection module 10 performs detection switching in each group of detection electrodes AN according to the control signal to switch different detection electrodes AN in the same group n Test the dried items.

[0100] It should be noted that the control module 20 controls the two detection electrodes AN1 and AN2 in each detection electrode group AN through control signals to perform alternating control, for example, controlling the first detection electrode AN1 in each detection electrode group AN to perform detection in the T1 time slice, and controlling the second detection electrode AN2 in each detection electrode group AN to perform detection in the T2 time slice, etc. n Perform alternating switching control and detection to allow the level between contacts to change repeatedly, improve detection accuracy and extend the detection electrode AN n working life.

[0101] Step S30 : the control module 20 calculates and detects the current resistance value according to the voltage signal value, and generates a corresponding control instruction to the drying module 30 according to the current resistance value.

[0102] It should be understood that after the control module 20 controls the detection module 10 to detect the object to be dried, it also receives the voltage signal value detected by the detection module 10, thereby calculating the corresponding current resistance value according to the detected voltage signal value. The state of the object to be dried can be determined according to the current resistance value, thereby generating a corresponding control instruction to the drying module, and the control instruction includes an opening instruction or a closing instruction, so that the drying module 30 can be controlled to be opened or closed according to the control instruction, automatically heating and drying the object to be dried and automatically powering off after drying, thereby realizing intelligent energy-saving control of the drying control device 1.

[0103] Step S40: the drying module 30 is turned on or off according to the control instruction.

[0104] In a specific implementation, after the drying module 30 receives the control instruction sent by the control module 20, it can be turned on or off according to the corresponding control instruction. For example, if the control instruction is an on instruction, the drying module 30 can start working according to the on instruction and dry the objects to be dried. If the control instruction is a off instruction, the drying module 30 can be turned off according to the off instruction and stop drying the objects to be dried.

[0105] In this embodiment, a detection module 10, a control module 20 and a drying module 30 connected in sequence are arranged in the drying control device 1, wherein the detection module 10 includes a plurality of detection electrode groups AN, each detection electrode group AN includes at least two detection electrodes AN. n ; The control module 20 is used to generate a control signal to perform alternating control on the multiple groups of detection electrodes AN in the detection module 10; the detection module 10 is used to perform detection switching according to the control signal, detect the object to be dried, obtain a voltage signal value, and transmit the voltage signal value to the control module 20; the control module 20 is also used to calculate the current resistance value according to the voltage signal value, and generate a corresponding control instruction to the drying module 30 according to the current resistance value; the drying module 30 is used to turn on or off according to the control instruction, which can be through multiple groups of detection electrodes AN or a single detection electrode AN in each group of detection electrodes AN n Alternating detection can effectively improve the detection accuracy and avoid polarization of the detection point after long-term use, thereby extending the detection electrode AN n life span.

[0106] refer to Figure 5 , Figure 5 It is a flow chart of the second embodiment of the drying control method of the present invention.

[0107] Based on the above first embodiment, step S30 of the drying control method of this embodiment specifically includes:

[0108] Step S301: the control module 20 performs median filtering on the voltage signal value to obtain a processed voltage signal value.

[0109] It should be noted that when the control module 20 receives the voltage signal value detected by the detection module 10, in order to avoid fluctuation interference caused by the power grid during detection, the voltage signal value can be median filtered to obtain the average value, thereby eliminating the fluctuation interference caused by the power grid.

[0110] Step S302: Calculate the current resistance value according to the processed voltage signal value.

[0111] It should be understood that after the processed voltage signal value is obtained, the current resistance value can be calculated according to the processed voltage signal value.

[0112] Step S303: generating a corresponding control instruction to the drying module 30 according to the current resistance value.

[0113] It should be noted that after obtaining the current resistance value, it is possible to judge whether there are objects to be dried on the drying rod of the drying rack and the dryness or wetness of the objects to be dried according to the current resistance value, so that corresponding control instructions can be generated to the drying module 30 according to the different states of the objects to be dried on the drying rod of the drying rack. For example, if there are no objects to be dried on the drying rod of the drying rack, a shutdown instruction is generated to the drying module 30 to stop the drying module from working.

[0114] It should be noted that the current resistance value can be compared with the resistance value set in advance to first determine whether the current resistance value is equal to 0. n The resistance value detected will not be 0, so when the current resistance value is 0, it is determined that the detection electrode AN n If a detection error occurs, a fault prompt message is generated to the control module 20, which can cause the control module 20 to issue an early warning based on the fault prompt message, reminding the user to check, and at the same time control the drying module 30 to shut down, thereby avoiding erroneous detection values ​​caused by a short circuit in the detection contacts or a circuit failure in the detection module 10.

[0115] like Figure 6 As shown, Figure 6 The overall flow chart of the drying control method of the present invention is as follows. At the beginning, the control module 20 controls the drying module 30 to automatically start the drying mode and controls the detection module 10 to initialize. The control module 20 controls the detection electrodes AN in the detection module 10 to switch between the detection electrodes AN and the detection modules 10. n Perform alternate detection and receive the detection electrodes AN nAfter the voltage signal value is sent, the current resistance value Rtest is calculated. First, it is detected whether the current resistance value Rtest is 0. If the current resistance value Rtest=0, a fault prompt is given, and the heating body 301 and the fan 302 in the drying module 30 are controlled to be turned off. When the current resistance value Rtest is not 0, the current resistance value Rtest can be compared with the resistance value Rs0 when there is no object to be dried on the drying rod of the drying rack. If the current resistance value Rtest is greater than or equal to the resistance value Rs0 when there is no object to be dried, it is determined that there is no object to be dried on the drying rod of the drying rack. The control module 20 can generate a shutdown instruction to the drying module 30 to control the heating body 301 and the fan 302 to be turned off. If the current resistance value Rtest is less than the resistance value Rs0 when there is no object to be dried, it can be determined that there are objects to be dried on the drying rod of the drying rack, and it is necessary to further determine the dry and wet state of the object to be dried based on the current resistance value Rtest. Therefore, the current resistance value Rtest can be compared with the resistance value RS1 of the object to be dried after drying. If the current resistance value Rtest is greater than or equal to the resistance value RS1 of the object to be dried after drying, it is determined that the object to be dried has been dried, and the control module 20 can generate a shutdown instruction to the drying module 30 to control the heating body 301 and the fan 302 to be turned off. If the current resistance value Rtest is less than the resistance value RS1 of the object to be dried after drying, the current resistance value can be compared with the minimum value RS2 in the resistance range of the object to be dried at different humidity levels. If the current resistance value is greater than or equal to RS2 and less than the resistance value RS1 of the object to be dried after drying, it means that the current object to be dried is wet and needs to be dried. Therefore, the control module 20 generates an opening instruction to the drying module 30 to control the heating body 301 and the fan 302 to be turned on for drying.

[0116] The control module 20 described in this embodiment performs median filtering on the voltage signal value to obtain a processed voltage signal value; calculates the current resistance value according to the processed voltage signal value; generates a corresponding control instruction to the drying module 30 according to the current resistance value, and can detect and obtain an accurate resistance value, so that the drying module 30 can be intelligently controlled according to the accurate resistance value, and can automatically control the opening or closing of the drying module 30 according to the dryness and wetness of the object to be dried, thereby achieving the effect of saving electricity.

[0117] refer to Figure 7 , Figure 7 It is a flow chart of the third embodiment of the drying control method of the present invention.

[0118] Based on the above first and second embodiments, step S303 of the drying control method of this embodiment specifically includes:

[0119] Step SB1: Compare the current resistance value with the preset resistance value.

[0120] It should be noted that the preset resistance value may include a first preset resistance value, a second preset resistance value, and a third preset resistance value, wherein the first preset resistance value is greater than the second preset resistance value, the second preset resistance value is greater than the third preset resistance value, the first preset resistance value refers to the resistance value Rs0 when there is no object to be dried, the second preset resistance value refers to the resistance value RS1 after the object to be dried, and the third preset resistance value refers to the minimum value RS2 in the resistance range of the object to be dried at different humidity levels. The object to be dried may be clothing, towels, and other objects, which is not limited in this embodiment, and is described by taking towels as an example in this embodiment.

[0121] In a specific implementation, when there is no towel, the resistance value of the first preset resistance value RS0 can be set to 500MΩ, or other resistance values, which is not limited in this embodiment. After the towel is dried, the second preset resistance value RS1 can be set to 100MΩ, the resistance range of the towel at different humidity is 1K to 100MΩ, and the minimum value RS2 in the resistance range of the towel at different humidity is set to 1KΩ. Thus, the current resistance value can be compared with the preset resistance value to determine whether there is a towel or the dryness and wetness of the towel when there is a towel.

[0122] Step SB2: obtaining a first attribute value of a first control parameter and / or a second attribute value of a second control parameter according to the comparison result, wherein the first control parameter and the second control parameter are used to indicate the working state of the drying module 30 .

[0123] It should be noted that the first control parameter and the second control parameter are parameters indicating the working status of the drying module 30. The first control parameter can be 0 or 1, and the second control parameter can be 0 or 1. Only when the first control parameter and the second control parameter are both 1 can the drying module 30 be indicated to be turned on.

[0124] The first attribute value refers to the value of towel_on_flag, which can be 0 or 1. When the first attribute value towel_on_flag=0, it means that there is no towel on the drying rack, and when the first attribute value towel_on_flag=1, it means that there is a towel on the drying rack. The second attribute value refers to the value of wet_towel_flag, which can be 0 or 1. When wet_towel_flag=1, it means that the towel is wet, and when wet_towel_flag=0, it means that the towel has been dried.

[0125] Therefore, the first attribute value and / or the second attribute value can be determined based on the comparison result between the current resistance value Rtest and the preset resistance value. For example, if the current resistance value Rtest is greater than the first preset resistance value RS0, it means that there is no towel on the drying rod of the drying rack at this time. Therefore, the first attribute value towel_on_flag=0, and there is no second attribute value.

[0126] Step SB3: Generate corresponding control instructions to the drying module 30 according to the first attribute value and / or the second attribute value.

[0127] In a specific implementation, a corresponding control instruction can be generated according to the first attribute value and / or the second attribute value to control the drying module 30 to turn on or off. When the first attribute value towel_on_flag=0, the first control parameter is 0, when the first attribute value towel_on_flag=1, the first control parameter is 1, when the second attribute value wet_towel_flag=0, the second control parameter is 0, and when the second attribute value wet_towel_flag=1, the second control parameter is 1. The first attribute value and / or the second attribute value can be determined according to the current resistance value. When there is no towel on the drying rod of the drying rack, only the first attribute value towel_on_flag=0, when there is a towel on the drying rod on the drying rack, the first attribute value and the second attribute value will exist at the same time, the first attribute value towel_on_flag=0, and the second attribute value wet_towel_flag=0 or 1.

[0128] Further, the preset resistance value includes a first preset resistance value RS0; the step of obtaining the first attribute value of the first control parameter and / or the second attribute value of the second control parameter according to the comparison result specifically includes: when the current resistance value is greater than the first preset resistance value, obtaining the first attribute value of the first control parameter; determining the first control parameter according to the first attribute value; and generating a shutdown instruction to the drying module 30 through the first control parameter.

[0129] It should be understood that when the current resistance value Rtest is greater than or equal to the first preset resistance value RS0, there is no towel on the drying rack's drying rod. At this time, the first attribute value can be obtained, and the first attribute value towel_on_flag = 0, so the drying module 30 does not need to be turned on, and the first control parameter is 0, and a closing instruction is generated to the drying module 30 according to the value of the first control parameter.

[0130] Specifically, the preset resistance value also includes: a second preset resistance value and a third preset resistance value, the second preset resistance value is less than the first preset resistance value, and the third preset resistance value is less than the second preset resistance value; the step of obtaining the first attribute value of the first control parameter and / or the second attribute value of the second control parameter according to the comparison result includes: when the current resistance value is less than the first preset resistance value, comparing the current resistance value with the second preset resistance value and the third preset resistance value; when the current resistance value is greater than the third preset resistance value and less than the second preset resistance value, obtaining the first attribute value of the first control parameter and the second attribute value of the second control parameter; determining the first control parameter and the second control parameter according to the first attribute value and the second attribute value; generating a start instruction to the drying module 30 through the first control parameter and the second control parameter.

[0131] It should be noted that the second preset resistance value is the resistance value RS1 after the towel is dried, the third preset resistance value is the minimum value RS2 of the towel in different humidity ranges, RS1 is 100MΩ, and the resistance value of RS2 is 1KΩ. When the current resistance value Rtest is less than the first preset resistance value, it means that there is a towel on the drying rod of the drying rack at this time, and the first attribute value can be obtained, and the first attribute value towel_on_flag=1, and then the degree of dryness and wetness of the towel is further judged, so the current resistance value Rtest is compared with the resistance value RS1 after the towel is dried and the minimum value RS2 of the towel in different humidity ranges. If RS2<Rtest<RS1, it proves that the towel is a wet towel at this time, so the second attribute value can be obtained, and the second attribute value wet_towel_flag=1, when the first attribute value towel_on_flag=1, the first control parameter is 1, and when the second attribute value wet_towel_flag=0, the second control parameter is 1, and the start instruction value drying module 30 can be generated according to the values ​​of the first parameter and the second control parameter.

[0132] Furthermore, the towel may be dried, so in the process of drying the wet towel, it is necessary to determine in real time the current resistance value detected for the current towel state and compare it with the second resistance value RA1 after the towel is dried in the preset resistance value. The step of obtaining the first attribute value of the first control parameter and / or the second attribute value of the second control parameter according to the comparison result specifically includes: when the current resistance value is greater than the second preset resistance value and less than the first preset resistance value, obtaining the first attribute value of the first control parameter and the second attribute value of the second control parameter; determining the first control parameter and the second control parameter according to the first attribute value and the second attribute value; and generating a shutdown instruction to the drying module 30 through the first control parameter and the second control parameter.

[0133] It should be understood that if the current resistance value Rtest is greater than the second preset resistance value RS1, it is also necessary to confirm whether there is a towel on the drying rod of the drying rack. When RS1<Rtest<RS0, it means that there is a towel on the drying rod of the drying rack and the towel has been dried. Therefore, the first attribute value towel_on_flag=1, and the second attribute value wet_towel_flag=0 are obtained. According to the first attribute value and the second attribute value, the first control parameter is determined to be 1, and the second control parameter is determined to be 0, and a closing instruction is generated to the drying module 30 according to the first control parameter and the second control parameter.

[0134] This embodiment compares the current resistance value with the preset resistance value; obtains a first attribute value of a first control parameter and / or a second attribute value of a second control parameter according to the comparison result, wherein the first control parameter and the second control parameter are used to indicate the working state of the drying module 30; generates a corresponding control instruction to the drying module 30 according to the first attribute value and / or the second attribute value, and determines whether the object to be dried exists by detecting the resistance characteristic parameters of the object to be dried. If the object to be dried does not exist, the drying module 30 can be automatically turned off. If the object to be dried exists, it is determined whether the drying has been completed, and the drying module 30 is automatically turned off when the drying is completed, thereby realizing intelligent energy-saving control of the drying device.

[0135] In addition, to achieve the above purpose, the present invention also provides a drying rack, which includes the drying control device shown above or applies the drying method described above. The drying rack can be a towel drying rack, a clothing drying rack, or a drying rack that can dry other objects, and the present invention is not limited to this.

[0136] Since the drying rack adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0137] It should be understood that the above is only an example and does not constitute any limitation on the technical solution of the present invention. In specific applications, technicians in this field can make settings as needed, and the present invention does not limit this.

[0138] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present invention. In practical applications, technicians in this field can select part or all of them according to actual needs to achieve the purpose of the present embodiment, and no limitation is made here.

[0139] In addition, for technical details that are not described in detail in this embodiment, reference can be made to the drying control method provided in any embodiment of the present invention, and will not be repeated here.

[0140] In addition, it should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0141] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0142] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0143] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drying control device, characterized in that: The drying control device comprises: a detection module, a control module and a drying module connected in sequence, the detection module comprises a plurality of detection electrodes, each detection electrode group comprises at least two detection electrodes; The control module is used to generate a control signal to perform alternating control on the multiple groups of detection electrodes in the detection module; The detection module is used to perform detection switching according to the control signal, detect the object to be dried, obtain a voltage signal value, and transmit the voltage signal value to the control module; The control module is further used to calculate the current resistance value according to the voltage signal value, and generate a corresponding control instruction to the drying module according to the current resistance value; The drying module is used to turn on or off according to the control instruction; The detection electrodes are metal electrodes, and the detection electrodes are alternately and evenly distributed on the drying rod of the drying rack. The detection module also includes: a photoresistor or a detection switch; The photoresistor or the detection switch is used to detect whether there are objects to be dried on the drying rod of the drying rack.

2. The drying control device according to claim 1, characterized in that: The drying module comprises: a heating body and a fan, wherein the heating body and the fan are respectively connected to the control module; The heating body is used to turn on or off according to the control instruction; The fan is used to be turned on or off according to the control instruction.

3. The drying control device according to claim 1, characterized in that: The drying control device further comprises: a power module, the power module being connected to the control module; The power supply module is used to provide power to the control module.

4. A drying control method, characterized in that: The drying control method applies the drying control device described in any one of claims 1 to 3, the drying control device comprising: a detection module, a control module and a drying module connected in sequence, the detection module comprising a plurality of detection electrodes, each detection electrode group comprising at least two detection electrodes; The method comprises: The control module generates a control signal to perform alternating control on the multiple groups of detection electrodes in the detection module; The detection module performs detection switching according to the control signal, detects the object to be dried, obtains a voltage signal value, and transmits the voltage signal value to the control module; The control module calculates and detects the current resistance value according to the voltage signal value, and generates a corresponding control instruction to the drying module according to the current resistance value; The drying module is turned on or off according to the control instruction; The detection module switches detection according to the control signal to detect the object to be dried, including: The detection module switches detection among the multiple groups of detection electrodes according to the control signal, so as to switch different groups of detection electrodes to detect the objects to be dried; or, The detection module detects and switches in each group of detection electrodes according to the control signal, so as to switch different detection electrodes in the same group to detect the objects to be dried.

5. The drying control method according to claim 4, characterized in that: The control module calculates and detects the current resistance value according to the voltage signal value, and generates a corresponding control instruction to the drying module according to the current resistance value, including: The control module performs median filtering on the voltage signal value to obtain a processed voltage signal value; Calculate the current resistance value according to the processed voltage signal value; Generate corresponding control instructions to the drying module according to the current resistance value.

6. The drying control method according to claim 5, characterized in that: The step of generating a corresponding control instruction to the drying module according to the current resistance value includes: Comparing the current resistance value with a preset resistance value; Obtaining a first attribute value of a first control parameter and / or a second attribute value of a second control parameter according to the comparison result, wherein the first control parameter and the second control parameter are used to indicate the working state of the drying module; Generate a corresponding control instruction to the drying module according to the first attribute value and / or the second attribute value.

7. The drying control method according to claim 6, characterized in that: The preset resistance value includes a first preset resistance value; The obtaining, according to the comparison result, a first attribute value of the first control parameter and / or a second attribute value of the second control parameter comprises: When the current resistance value is greater than the first preset resistance value, obtaining a first attribute value of a first control parameter; determining a first control parameter according to the first attribute value; A closing instruction is generated to the drying module according to the first control parameter.

8. The drying control method according to claim 7, characterized in that: The preset resistance value further includes: a second preset resistance value and a third preset resistance value, the second preset resistance value is smaller than the first preset resistance value, and the third preset resistance value is smaller than the second preset resistance value; The obtaining, according to the comparison result, a first attribute value of the first control parameter and / or a second attribute value of the second control parameter comprises: When the current resistance value is less than the first preset resistance value, comparing the current resistance value with the second preset resistance value and the third preset resistance value; When the current resistance value is greater than the third preset resistance value and less than the second preset resistance value, obtaining a first attribute value of the first control parameter and a second attribute value of the second control parameter; Determine a first control parameter and a second control parameter according to the first attribute value and the second attribute value; An opening instruction is generated to the drying module according to the first control parameter and the second control parameter.

9. The drying control method according to claim 8, characterized in that: The obtaining, according to the comparison result, a first attribute value of the first control parameter and / or a second attribute value of the second control parameter comprises: When the current resistance value is greater than the second preset resistance value and less than the first preset resistance value, obtaining a first attribute value of the first control parameter and a second attribute value of the second control parameter; Determine a first control parameter and a second control parameter according to the first attribute value and the second attribute value; A closing instruction is generated to the drying module according to the first control parameter and the second control parameter.

10. A drying rack, characterized in that: The drying rack comprises a drying control device as described in any one of claims 1 to 3 or applies a drying control method as described in any one of claims 4 to 9.

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