Abnormal judgment circuit, detection method, device, equipment and computer storage medium

Abstract

The present application provides an abnormal judgment circuit, a detection method, a device, equipment and a computer storage medium. The abnormal judgment circuit is used to detect the working state of a component to be detected, including a switching circuit having a first end, a second end and a third end; a control circuit including a control signal input end and a fourth end; and a detection circuit including a voltage detection end and a fifth end. Wherein, the fourth end is connected to the second end, the fifth end is connected to the third end, and the component to be detected is connected to the first end. By arranging the control circuit, the detection circuit and the component to be detected at different ends of the switching circuit, the detection voltage can be obtained conveniently, quickly and accurately, and thus the working state of the component to be detected can be determined quickly and accurately based on the detection voltage.

Description

Technical Field

[0001] This application relates to the field of automation control technology, including but not limited to a detection method, device, laundry treatment equipment, and computer-readable storage medium. Background Art

[0002] Currently, when a washing machine detects whether a solenoid valve and a drain pump are working, it mainly relies on whether there is a change in the water level frequency for detection. If the water pressure is very small, resulting in a very small change in the water level frequency, then the detection is inaccurate and misjudgment will occur. In addition, the detection time is relatively long, and when the solenoid valve and the drain pump work abnormally, it cannot be detected, resulting in damage when the solenoid valve and the drain pump work abnormally.

[0003] In the related art, there is a method of directly detecting the current voltage of the drain pump through a detection circuit and determining the state of the drain pump based on the level of the current voltage of the drain pump. Since the working voltages of the drain pumps of different washing machines may be different, the accuracy of the detection result is relatively low, the real-time performance is poor, and the overall robustness is weak. Summary of the Invention

[0004] In view of this, embodiments of the present application provide an abnormal judgment circuit, detection method, device, equipment, and computer storage medium.

[0005] The technical solution of the embodiments of the present application is implemented as follows:

[0006] Embodiments of the present application provide an abnormal judgment circuit for a laundry treatment equipment, which is used to detect the working state of a component to be detected, including:

[0007] A switch circuit, which has a first end, a second end, and a third end;

[0008] A control circuit, including a control signal input end and a fourth end;

[0009] A detection circuit, including a voltage detection end and a fifth end;

[0010] Wherein, the fourth end is connected to the second end, the fifth end is connected to the third end, and the component to be detected is connected to the first end.

[0011] In some embodiments, the switch circuit includes a thyristor switch, and the second end is connected to the control electrode of the thyristor switch.

[0012] In some embodiments, the control circuit includes a power supply VDD1 and a triode T1. The control signal input end is connected to the base of the triode to control the conduction or cutoff of the triode. The fourth end is connected to the collector of the triode, and the power supply VDD1 is connected to the emitter of the triode.

[0013] In some embodiments, the detection circuit includes a power supply VDD2, a first resistor R1, and a second resistor R2. One end of the first resistor R1 is connected to the fifth end and the ground end respectively, and the other end of the first resistor is connected to the voltage detection end and one end of the second resistor R2 respectively. The first resistor R1 is used to obtain a voltage signal; the other end of the second resistor R2 is connected to the power supply VDD2.

[0014] In some embodiments, the component to be detected is a solenoid valve and / or a drain pump. One end of the component to be detected is connected to an AC power supply, and the other end is connected to the first end.

[0015] An embodiment of the present application provides a detection method for the above abnormal judgment circuit. The method includes:

[0016] Input a control signal to the control signal input end to turn on or off the switch circuit;

[0017] Obtain the detection voltage of the voltage detection end;

[0018] Based on the detection voltage, determine the working state of the component to be detected.

[0019] In some embodiments, the determining the working state of the component to be detected based on the detection voltage includes:

[0020] Based on the detection voltage, determine the fluctuation information of the detection voltage;

[0021] Based on the fluctuation information, determine the working state of the component to be detected.

[0022] In some embodiments, the determining the fluctuation information of the detection voltage includes:

[0023] Obtain the maximum voltage value of the detection voltage and the minimum voltage value of the detection voltage within a preset period;

[0024] Determine the difference between the maximum voltage value and the minimum voltage value;

[0025] Determine the difference as the fluctuation information.

[0026] In some embodiments, the determining the working state of the component to be detected based on the fluctuation information includes:

[0027] Determine that the fluctuation information is less than a first fluctuation threshold, and determine that the working state of the component to be detected is the off state;

[0028] Determine that the fluctuation information is greater than the first fluctuation threshold and less than the second fluctuation threshold, and determine that the working state of the component to be detected is the on state, where the second fluctuation threshold is greater than the first fluctuation threshold;

[0029] Determine that the fluctuation information is greater than the second fluctuation threshold, and determine that the working state of the component to be detected is the abnormal state.

[0030] In some embodiments, the method further includes:

[0031] Based on the working state of the component to be detected, determine the detection result of the component to be detected.

[0032] In some embodiments, the determining the detection result of the component to be detected based on the working state of the component to be detected includes:

[0033] Determine that the working state of the component to be detected is the abnormal state, and determine that the detection result of the component to be detected is abnormal operation;

[0034] Determine that the working state of the component to be detected is the on state or the off state, determine the current clothing processing process of the clothing processing device, and based on the current clothing processing process and the working state of the component to be detected, determine that the detection result of the component to be detected is normal or abnormal.

[0035] In some embodiments, the determining that the detection result of the component to be detected is normal or abnormal based on the current clothing processing process and the working state of the component to be detected includes:

[0036] Determine the reference state of the component to be detected based on the current clothing processing process;

[0037] Determine that the working state of the component to be detected is consistent with the reference state, and determine that the detection result of the component to be detected is normal operation;

[0038] Determine that the working state of the component to be detected is inconsistent with the reference state, and determine that the detection result of the component to be detected is abnormal operation.

[0039] In some embodiments, the method further includes:

[0040] Determine that the detection result of the component to be detected is the abnormal operation, and control the clothing processing device to pause the clothing processing program;

[0041] Generate and output an alarm message based on the detection result, and / or turn off the component to be detected.

[0042] An embodiment of the present application provides a detection device for the above abnormal judgment circuit, and the detection device includes:

[0043] A control module, configured to output a control signal to turn on the switch circuit;

[0044] An acquisition module, configured to acquire a detected voltage of the voltage detection terminal;

[0045] A determination module, configured to determine an operating state of the component to be detected based on the detected voltage.

[0046] An embodiment of the present application provides a laundry treatment device, including:

[0047] A memory, configured to store executable instructions;

[0048] A processor, configured to implement the above detection method when executing the executable instructions stored in the memory.

[0049] An embodiment of the present application provides a computer-readable storage medium, in which computer-executable instructions are stored, and the computer-executable instructions are configured to execute the above detection method.

[0050] The abnormal judgment circuit, detection method, device, equipment and computer storage medium provided by the embodiments of the present application, the abnormal judgment circuit is used to detect the operating state of a component to be detected, including a switch circuit, the switch circuit has a first end, a second end and a third end; a control circuit, including a control signal input end and a fourth end; a detection circuit, including a voltage detection end and a fifth end; wherein, the fourth end is connected to the second end, the fifth end is connected to the third end, and the component to be detected is connected to the first end. It is realized that the control circuit, the detection circuit and the component to be detected are arranged at different ends of the switch circuit. In this way, the detected voltage can be obtained conveniently, quickly and accurately, the detection efficiency and accuracy are improved, and the operating state of the component to be detected can be quickly and accurately determined based on the waveform and fluctuation of the detected voltage. Description of the Drawings

[0051] Figure 1 It is a schematic structural diagram of a composition of the abnormal judgment circuit provided by the embodiment of the present application;

[0052] Figure 2 It is a schematic implementation flowchart of the detection method provided by the embodiment of the present application;

[0053] Figure 3 It is a schematic implementation flowchart of determining fluctuation information provided by the embodiment of the present application;

[0054] Figure 4 It is a schematic implementation flowchart of determining the operating state provided by the embodiment of the present application;

[0055] Figure 5Another schematic diagram of the implementation process of the detection method provided by the embodiment of the present application;

[0056] Figure 6 A schematic diagram of the implementation process of determining the detection result provided by the embodiment of the present application;

[0057] Figure 7 Another schematic diagram of the implementation process of determining the detection result provided by the embodiment of the present application;

[0058] Figure 8 Another schematic diagram of the composition structure of the abnormal judgment circuit provided by the embodiment of the present application;

[0059] Figure 9A A detection voltage waveform diagram provided by the embodiment of the present application;

[0060] Figure 9B Another detection voltage waveform diagram provided by the embodiment of the present application;

[0061] Figure 9C Another detection voltage waveform diagram provided by the embodiment of the present application;

[0062] Figure 10 A schematic diagram of the composition structure of the detection device provided by the embodiment of the present application;

[0063] Figure 11 A schematic diagram of the composition structure of the clothing treatment device provided by the embodiment of the present application. Detailed implementation manners

[0064] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings. The described embodiments should not be regarded as limitations of the present application. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0065] In the following description, "some embodiments" are involved, which describe a subset of all possible embodiments. However, it can be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0066] In the following description, the terms "first / second / third" involved are only used to distinguish similar objects and do not represent a specific order for the objects. It can be understood that "first / second / third" can be interchanged with a specific order or sequence when allowed, so that the embodiments of the present application described here can be implemented in an order other than that illustrated or described here.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used herein are for the purpose of describing embodiments of this application only and are not intended to limit this application.

[0068] Based on the problems of low accuracy and poor real-time performance in the detection of components to be detected in a clothing treatment device in the related art, such as solenoid valves, drainage pumps, etc., an abnormal judgment circuit for a clothing treatment device is provided in an embodiment of this application to detect the working state of the component to be detected. Figure 1 As a schematic structural diagram of the abnormal judgment circuit provided in an embodiment of this application, as Figure 1 shown, the abnormal judgment circuit 10 includes:

[0069] A switch circuit 101, which has a first end 11, a second end 12, and a third end 13;

[0070] A control circuit 102, which includes a control signal input terminal INPUT and a fourth end 14;

[0071] A detection circuit 103, which includes a voltage detection terminal U TEST and a fifth end 15.

[0072] In the abnormal judgment circuit 10, the fourth end 14 is connected to the second end 12, the fifth end 15 is connected to the third end 13, and the component to be detected 01 is connected to the first end 11. In the embodiment of this application, the connection between different ends can be realized through wires.

[0073] In the embodiment of this application, the switch circuit 101 may include a thyristor 1011, and the thyristor may be a bidirectional thyristor. In practice, considering the overcurrent situation, referring to Figure 1 , the second end 12 of the switch circuit 101 can be connected to the control electrode of the thyristor 1011 through a fourth resistor R4.

[0074] Referring to Figure 1 , the control circuit 102 includes a power supply VDD1 and a triode T1. In the control circuit 102, considering the stability of the circuit, the control signal input terminal INPUT is connected to the base of the triode T1 through a sixth resistor R6, and the conduction or cut-off of the triode T1 can be controlled through this control signal. For example, when the control signal is at a low level, the triode T1 conducts; when the control signal is at a high level, the triode T1 is cut off, that is, the triode T1 is turned off. Continuing to refer to Figure 1 , the fourth end 14 is connected to the collector of the triode T1, and the power supply VDD1 is connected to the emitter of the triode T1.

[0075] Referring to Figure 1, the detection circuit 103 includes a power supply VDD2, a first resistor R1, and a second resistor R2. In the detection circuit 103, one end and the fifth end 15 of the first resistor R1 are both connected to the ground terminal; the other end of the first resistor R1, the voltage detection terminal TEST, and one end of the second resistor R2 are connected together. The first resistor R1 is used to obtain a voltage signal; the other end of the second resistor R2 is connected to the power supply VDD2.

[0076] In the embodiments of the present application, the component to be detected can be a solenoid valve in a laundry treatment device, or a drain pump in a laundry treatment device, or both a solenoid valve and a drain pump in a laundry treatment device.

[0077] In practice, in order to improve the sensitivity and robustness of the abnormality judgment circuit, refer to Figure 1 , the switching circuit 101 further includes a third resistor R3, a capacitor C1, and a variable resistor VR1; the control circuit 102 further includes a fifth resistor R5; the detection circuit 103 further includes a first diode D1 and a second diode D2.

[0078] In the embodiments of the present application, an abnormality judgment circuit is provided. The abnormality judgment circuit is used to detect the working state of a component to be detected, and includes a switching circuit having a first end, a second end, and a third end; a control circuit including a control signal input terminal and a fourth end; a detection circuit including a voltage detection terminal and a fifth end; wherein, the fourth end is connected to the second end, the fifth end is connected to the third end, and the component to be detected is connected to the first end. Since in the embodiments of the present application, the control circuit, the detection circuit, and the component to be detected are arranged at different ends of the switching circuit, in this way, the detection voltage can be obtained conveniently, quickly, and accurately, so as to quickly and accurately determine the working state of the component to be detected based on the detection voltage.

[0079] Based on the above abnormality judgment circuit, the embodiments of the present application provide a detection method for the above abnormality judgment circuit. The detection method provided by the embodiments of the present application can be implemented by a computer program. When the computer program is executed, each step in the detection method provided by the embodiments of the present application is completed. In some embodiments, the computer program can be executed by the abnormality judgment circuit in a laundry treatment device. Figure 2 For an implementation process of the detection method provided by the embodiments of the present application, which is applied to the above abnormality judgment circuit included in a laundry treatment device, the laundry treatment device can be a washing machine, a washer-dryer, a dishwasher, etc. As Figure 2 shown, the detection method includes the following steps:

[0080] Step S201, input a control signal at the control signal input terminal to turn on or off the switching circuit.

[0081] Here, the control signal can be a DC voltage, which can be obtained through the power supply module. Refer to Figure 1 , when the control signal is at a low level, the triode T1 conducts, and the control electrode of the thyristor switch 1011 outputs a high voltage, triggering the thyristor switch to conduct, thereby realizing the conduction of the switch circuit. When the control signal is at a high level, the triode T1 cuts off, and the thyristor switch disconnects, so that the conduction switch circuit disconnects, the component to be detected is disconnected from the power supply, and the operation stops.

[0082] Step S202, obtain the detected voltage at the voltage detection terminal.

[0083] Here, a voltmeter is provided in the laundry treatment device, and the detected voltage at the voltage detection terminal is obtained through the voltmeter. Among them, the voltmeter can be an analog electronic voltmeter or a digital voltmeter, etc.

[0084] Step S203, determine the working state of the component to be detected based on the detected voltage.

[0085] Here, the component to be detected includes a solenoid valve and a drain pump. Taking the laundry treatment device as a washing machine as an example, the solenoid valve of the washing machine refers to the water inlet solenoid valve, which is used to control whether to let water in, equivalent to the water inlet switch in the washing machine. The drain pump can drain the water in the washing machine tub based on a control instruction, so that the washing machine can work properly through the coordinated operation of the solenoid valve and the drain pump.

[0086] In actual implementation, the fluctuation information of the detected voltage can be determined first according to the detected voltage, and then the working state of the component to be detected can be determined based on the fluctuation information. Among them, the maximum voltage value and the minimum voltage value of the detected voltage within a preset period can be obtained. The preset period can be determined according to the period of the actual detected voltage. The period of the actual detected voltage can be directly determined as the preset period. To improve the data reliability, twice or three times the period of the actual detected voltage can also be determined as the preset period; then, continue to determine the difference between the maximum voltage value and the minimum voltage value, and determine this difference as the fluctuation information of the detected voltage.

[0087] In an embodiment of the present application, the working state of the component to be detected can be determined by comparing the fluctuation information with the fluctuation threshold. In actual implementation, if the fluctuation information is less than the first fluctuation threshold, it indicates that the fluctuation of the detected voltage is very small or even non-existent, and it is determined that the working state of the component to be detected is the off state. The first fluctuation threshold can be 1 millivolt (mV), 1.5 mV, 2 mV, etc.; if the fluctuation information is greater than the first fluctuation threshold and less than the second fluctuation threshold, it indicates that there is a fluctuation in the detected voltage, but the fluctuation is small, and it is determined that the working state of the component to be detected is the on state. The second fluctuation threshold is greater than the first fluctuation threshold, and the second fluctuation threshold can be 0.1 volt (V), 0.15 V, 0.2 V, etc.; if the fluctuation information is greater than the second fluctuation threshold, it indicates that there is a fluctuation in the detected voltage and the fluctuation is large, and it is determined that the working state of the component to be detected is the abnormal state. That is, the working state of the component to be detected includes the off state, the on state, and the abnormal state. Through the above method, the working state of the component to be detected can be determined. In this way, more information can be obtained through the fluctuation information of the detected voltage, thereby avoiding detection errors and improving the detection accuracy.

[0088] In an embodiment of the present application, through steps S201 to S203, by inputting control signals such as voltage to the control signal input terminal of the abnormality determination circuit, the switch circuit of the abnormality determination circuit is turned on or the switch circuit is turned off, so as to control whether the component to be detected works; then, the detected voltage at the voltage detection terminal is obtained; finally, based on the detected voltage, the working state of the component to be detected is determined. Based on the control circuit, the detection circuit, and the component to be detected in the abnormality determination circuit are respectively arranged at different ends of the switch circuit. In this way, the control circuit can quickly and accurately turn on or turn off the switch circuit through the control signal input terminal; the detected voltage can also be obtained timely and accurately from the voltage detection terminal of the detection circuit, and finally the working state of the component to be detected is determined based on the obtained detected voltage, improving the efficiency and accuracy of the working state detection.

[0089] In some embodiments, the above step S203 can be implemented by the following steps S2031 and S2032:

[0090] Step S2031, based on the detected voltage, determine the fluctuation information of the detected voltage.

[0091] In actual implementation, as Figure 3 shown, step S2031 "Based on the detected voltage, determine the fluctuation information of the detected voltage" can be implemented by the following steps S20311 to S20313:

[0092] Step S20311, obtain the maximum voltage value of the detected voltage and the minimum voltage value of the detected voltage within a preset period.

[0093] Here, the preset period can be determined according to the period of the actually detected voltage. The period of the actually detected voltage can be directly determined as the preset period. To improve the data reliability, twice or three times the period of the actually detected voltage can also be determined as the preset period. For example, the period can be 2 seconds, 3 seconds, 4 seconds, etc. Then, within at least one period, the maximum voltage value and the minimum voltage value of the detected voltage are obtained by comparing the magnitudes.

[0094] Step S20312: Determine the difference between the maximum voltage value and the minimum voltage value.

[0095] Here, by using the subtraction algorithm, the maximum voltage value is subtracted from the minimum voltage value to obtain the difference between the maximum voltage value and the minimum voltage value.

[0096] Step S20313: Determine the difference as the fluctuation information.

[0097] Here, the difference determined in step S20312 is directly used as the fluctuation information to reflect the voltage fluctuation condition of the detected voltage.

[0098] In this way, determining the difference between the maximum voltage and the minimum voltage within the period as the fluctuation information can reflect the voltage change condition, thereby reflecting the working state of the component to be detected.

[0099] Step S2032: Determine the working state of the component to be detected based on the fluctuation information.

[0100] In actual implementation, as Figure 4 shown, step S2032 "Determine the working state of the component to be detected based on the fluctuation information" can be implemented through the following steps S20321 to S23025:

[0101] Step S20321: Judge whether the fluctuation information is less than the first fluctuation threshold.

[0102] Here, the first fluctuation threshold can be 1 MV, 1.5 MV, 2 MV, etc. By comparing the magnitudes, it is judged whether the fluctuation information is less than the first fluctuation threshold. If it is determined that the fluctuation information is less than the first fluctuation threshold, it indicates that the voltage fluctuation of the detected voltage is very small, or even there is no fluctuation, and then step S20322 is entered; if it is determined that the fluctuation information is not less than the first fluctuation threshold, it indicates that the voltage fluctuation of the detected voltage at this time is not very small, and then step S20323 is entered to continue judging the magnitude relationship between the fluctuation information and the second fluctuation threshold.

[0103] Step S20322: Determine the working state of the component to be detected as the off state.

[0104] At this time, the fluctuation information is less than the first threshold value, indicating that the detected voltage is very stable. This feature matches the off state of the detection component, so it is determined that the working state of the component to be detected in this case is the off state.

[0105] Step S20323: Determine whether the fluctuation information is less than the second fluctuation threshold value.

[0106] Here, the second fluctuation threshold value is greater than the first fluctuation threshold value. The second fluctuation threshold value can be 0.1V, 0.15V, 0.2V, etc. Still, the method of comparing sizes can be used to determine whether the fluctuation information is less than the second fluctuation threshold value. If it is determined that the fluctuation information is less than the second fluctuation threshold value, it indicates that the fluctuation of the detected voltage is small, and then step S20324 is entered; if it is determined that the fluctuation information is not less than the second fluctuation threshold value, it indicates that the detected voltage is greater than or equal to the second fluctuation threshold value at this time, and the fluctuation of the detected voltage is relatively large, and then step S20325 is entered.

[0107] Step S20324: Determine that the working state of the component to be detected is the on state.

[0108] At this time, the fluctuation information is greater than the first fluctuation threshold value and less than the second fluctuation threshold value, indicating that the fluctuation of the detected voltage is relatively stable. This feature matches the on state of the detection component, so it is determined that the working state of the component to be detected in this case is the on state.

[0109] In some embodiments, it can also be considered that the fluctuation information is greater than or equal to the first fluctuation threshold value and less than the second fluctuation threshold value at this time. That is, when the fluctuation information is greater than or equal to the first fluctuation threshold value and less than the second fluctuation threshold value, it is determined that the working state of the component to be detected is the on state.

[0110] Step S20325: Determine that the working state of the component to be detected is the abnormal state.

[0111] At this time, the fluctuation information is greater than the second fluctuation threshold value, indicating that the detected voltage is unstable. This feature matches the abnormal state of the detection component, so it is determined that the working state of the component to be detected in this case is the abnormal state.

[0112] In some embodiments, it can also be considered that the fluctuation information is greater than or equal to the second fluctuation threshold value at this time. That is, when the fluctuation information is greater than or equal to the second fluctuation threshold value, it is determined that the working state of the component to be detected is the abnormal state.

[0113] Through the above steps S2031 and S2032, first obtain the maximum voltage value and the minimum voltage value of the detected voltage within a preset period; then, determine the difference between the maximum voltage value and the minimum voltage value, and determine this difference as the fluctuation information, which is used to reflect the voltage fluctuation of the detected voltage; next, judge the magnitude relationship among the fluctuation information, the first fluctuation threshold, and the second fluctuation threshold. If the fluctuation information is less than the first fluctuation threshold, it is considered that the working state of the component to be detected is the off state; if the fluctuation information is between the first fluctuation threshold and the second fluctuation threshold, it is considered that the working state of the component to be detected is the on state; if the fluctuation information is greater than the second fluctuation threshold, it is considered that the working state of the component to be detected is the abnormal state, so as to accurately and quickly determine the working state of the component to be detected through the fluctuation information.

[0114] In some embodiments, as Figure 5 shown, the detection method further includes steps S204 to S207:

[0115] Step S204, based on the working state of the component to be detected, determine the detection result of the component to be detected.

[0116] In actual implementation, as Figure 6 shown, step S204 "Based on the working state of the component to be detected, determine the detection result of the component to be detected" can be implemented through the following steps S2041 to S2043:

[0117] Step S2041, judge whether the working state of the component to be detected is the abnormal state.

[0118] Here, if it is judged that the working state of the component to be detected is the abnormal state, then enter step S2042; if it is judged that the working state of the component to be detected is not the abnormal state, then the working state of the component to be detected is the off state or the on state, and then enter step S2043.

[0119] Step S2042, determine that the detection result of the component to be detected is abnormal operation.

[0120] At this time, it has been directly determined through the fluctuation information that the working state of the component to be detected is the abnormal state. Then, it can be considered that the detection result for the component to be detected is abnormal operation.

[0121] Step S2043, determine the current clothing processing process of the clothing processing device, and based on the current clothing processing process and the working state of the component to be detected, determine that the detection result of the component to be detected is normal or abnormal.

[0122] At this time, the working state of the component to be detected is the on state or the off state. Then, the detection result of the component to be detected cannot be directly known. Next, the current laundry treatment process of the laundry treatment device can be obtained by reading an instruction. Finally, based on the current laundry treatment process and the working state, it is determined whether the detection result of the component to be detected is normal or abnormal.

[0123] The laundry treatment device can be a household appliance with functions of water inlet and drainage, such as a washing machine, a washer-dryer, a dishwasher, etc. Taking the laundry treatment device as a washing machine as an example, when the washing machine executes a quick wash program, the washing machine can sequentially execute processes such as water inlet, washing, drainage, and dehydration.

[0124] In actual implementation, as Figure 7 shown, the "determining whether the detection result of the component to be detected is normal or abnormal based on the current laundry treatment process and the working state of the component to be detected" in step S2043 can be implemented through the following steps S431 to S433:

[0125] Step S431, determining the reference state of the component to be detected based on the current laundry treatment process.

[0126] In actual implementation, each laundry treatment process corresponds to a reference state that the component to be detected should have. The reference state refers to the state of the component to be detected when ensuring the normal execution of the laundry treatment process.

[0127] Exemplarily, taking the laundry treatment device as a washing machine and the components to be detected as an electromagnetic valve and a drain pump as an example, if the current washing machine is in the drainage process, on the one hand, the electromagnetic valve needs to be closed and not inject water into the washing machine, and on the other hand, drainage needs to be carried out through the drain pump. Then, the reference state of the electromagnetic valve in this process is the closed state, and the reference state of the drain pump is the on state.

[0128] Step S432, determining that the working state of the component to be detected is consistent with the reference state, and determining that the detection result of the component to be detected is normal operation.

[0129] Continuing with the above example, if it is determined that the working state of the electromagnetic valve is the closed state and the working state of the drain pump is the on state, then it is considered that the working state of the component to be detected is consistent with the reference state. At this time, the electromagnetic valve does not inject water into the washing machine, and the drain pump can help complete the drainage process. Then, it is determined that the detection result of the component to be detected is normal operation.

[0130] Step S433, determining that the working state of the component to be detected is inconsistent with the reference state, and determining that the detection result of the component to be detected is abnormal operation.

[0131] Continuing with the above example, if it is determined that the working state of the solenoid valve is the open state and / or the working state of the drain pump is the closed state, it is considered that the working state of the component to be detected is inconsistent with the reference state. At this time, the solenoid valve and / or the drain pump hinder the normal drainage process. Then, it is determined that the detection result of the component to be detected is abnormal operation.

[0132] Step S205, determine whether the detection result of the component to be detected is abnormal operation.

[0133] Here, if the detection result of the component to be detected is not abnormal operation, that is, the detection result of the component to be detected is normal operation, indicating that the working state of the component to be detected at this time matches the current clothing treatment process, then return to step S101 to continue the detection; if the detection result of the component to be detected is abnormal operation, then enter step S206, that is, pause the clothing treatment program to prevent the abnormal situation from continuing.

[0134] Step S206, control the clothing treatment device to pause the clothing treatment program.

[0135] At this time, it is indicated that the working state of the component to be detected is an abnormal state. In order to stop the loss in time and avoid more losses, when the detection result of the component to be detected is abnormal operation, the clothing treatment device can be controlled to pause the clothing treatment program through a stop instruction to avoid damaging the clothing treatment device or the clothes in the clothing treatment device.

[0136] In some embodiments, when the detection result of the component to be detected is abnormal operation, the working state of the component to be detected can also be changed through a control circuit so that the changed working state is consistent with the reference state, thereby making the detection result of the component to be detected a normal state. Determine that the component to be detected and the clothing processor are operating the clothing treatment program normally.

[0137] Step S207, generate and output an alarm message based on the detection result, and / or turn off the component to be detected.

[0138] When actually implementing "generate and output an alarm message based on the detection result" in step S207, it can be implemented by at least one of the following four methods:

[0139] Method 1, control the first display module of the clothing treatment device to display a first prompt message, and the first prompt message is used to prompt that the component to be detected has abnormal operation.

[0140] Here, the first display module can be a display screen, and the form of the first prompt message can be in the form of text, image, etc. In this way, a prompt message for prompting the abnormality of the component to be detected can be displayed on the display screen of the clothing treatment device.

[0141] In the second method, control the second display module of the laundry treatment device to display a fault code, which is used to indicate that the component to be detected is malfunctioning.

[0142] Here, the second display module can also be the display screen of the laundry treatment device. This display screen can be the same as the display screen in the first method, and the display screens in the first and second methods refer to different display areas on the same display screen; this display screen can also be different from the display screen in the first method, that is, the laundry treatment device includes at least two display screens.

[0143] In the embodiments of the present application, a fault code can also be set for the situation where the component to be detected is malfunctioning. For example, the fault code can be: E001; then, the second display module can be used to display this fault code.

[0144] In the third method, control the alarm module of the laundry treatment device to emit a first alarm sound, which is used to indicate that the component to be detected is malfunctioning.

[0145] Here, an alarm module is provided on the laundry treatment device. This alarm module can be a buzzer, and the form of the first alarm sound can be a one-time short sound or a continuous repeated sound. In order to play a warning role, the first alarm sound is emitted through the alarm module.

[0146] In the fourth method, control the sending module of the laundry treatment device to send the fault code to the terminal that has established a connection relationship with the laundry treatment device.

[0147] Here, the laundry treatment device can also establish a communication connection with the terminal. This communication connection can be a wired communication connection or a wireless communication connection. The terminal can be a smart phone, a smart wearable device, a television, etc. By sending the fault code to the terminal, the flexibility of the alarm message can be improved, so that the outside world can learn about this abnormality through various channels.

[0148] In some embodiments, when the detection result of the component to be detected is malfunctioning, the control circuit of the component to be detected can also be used to control the component to be detected to turn off.

[0149] Through the above steps S204 to S207, when it is determined that the working state of the component to be detected is an abnormal state, control the component to be detected to turn off, or pause the laundry treatment program, generate and output alarm messages such as the first prompt message, the fault code, and the first alarm sound. This alarm message can be output through the laundry treatment device, or can also be output through other terminals that have established a communication connection with the laundry treatment device. Through flexible alarms, the abnormality can be reported in a timely manner, and damage to the laundry treatment device or the clothes in the laundry treatment device can be avoided.

[0150] Based on the above embodiments, the embodiments of the present application further provide a detection method for detecting a solenoid valve and a drain pump in a washing machine. In the embodiments of the present application, a detection circuit is added to each of the solenoid valve control circuit and the drain pump control circuit. Here, the detection circuit is equivalent to the abnormal judgment circuit in the above embodiments. This detection circuit can not only accurately detect whether the solenoid valve and the drain pump are opened, but also has a very short detection time. Moreover, when the solenoid valve and the drain pump work abnormally, it can also accurately detect, so that the solenoid valve and the drain pump can be immediately closed, reducing the damage of the solenoid valve and the drain pump.

[0151] In actual implementation, referring to Figure 8 , a detection circuit is added to the thyristor circuit in the control circuits of the solenoid valve and the drain pump. Among them, the circuit 81 in the circle is the added detection circuit, and the circuit 82 outside the circle is the control circuit and the switch circuit of the solenoid valve or the drain pump. When the thyristor of the solenoid valve or the drain pump does not work, a fixed voltage value is detected. Here, the "not working" corresponds to the "closed state" in the above embodiments; when the solenoid valve or the drain pump works, a fluctuating voltage range is detected. Here, the "working" corresponds to the "open state" in the above embodiments; when the solenoid valve is overcurrent or the drain pump is blocked, a relatively large voltage fluctuation range is detected. Here, the "overcurrent or blocked" corresponds to the "abnormal state" in the above embodiments.

[0152] In Figure 8 , the detection circuit is the detection circuit of one of the solenoid valve or the drain pump, and the detection circuit of the other is similar to the detection circuit in Figure 8 . Among them, in the detection circuit 81, the first resistor R1 and the second resistor R2 can be resistors with a resistance value of 4.7 kΩ, the seventh resistor R7 and the eighth resistor R8 can be resistors with a resistance value of 0 Ω, and the seventh resistor R7 and the eighth resistor R8 play a role in current limiting; the tenth resistor R10 can be a resistor with a resistance value of 1 Ω; the ninth resistor R9 can be a variable resistor. Here, the resistance value of the ninth resistor R9 can be 0 Ω. When the ninth resistor R9 is 0 Ω, the tenth resistor R10 is short-circuited. The ninth resistor R9 and the tenth resistor R10 can reflect the fluctuation range of the detected voltage; the power supply VDD2 can be 5 V.

[0153] In the control circuit and the switch circuit 82, the third resistor R3 can be a resistor with a resistance value of 1 kΩ, the capacitor C1 can be a capacitor with a capacitance of 10 nF, the fifth resistor R5 can be a resistor with a resistance value of 10 kΩ, the sixth resistor R6 can be a resistor with a resistance value of 4.7 kΩ, the power supply VDD1 can be 5 V, and the triode T1 can be a PNP type triode or an NPN type triode.

[0154] Exemplarily, based on the detection circuit in Figure 8 , the following can be obtained asFigure 9A , 9B and the detection results shown in 9C, where Figure 9A the waveform diagram corresponding to 91 in is the detection voltage waveform diagram when the solenoid valve or the drain pump is not working, Figure 9B the waveform diagram corresponding to 92 in is the detection voltage waveform diagram when the drain pump is working properly, Figure 9C the waveform diagram corresponding to 93 in is the detection voltage waveform diagram when the drain pump is in an abnormal state.

[0155] From Figure 9A it can be known that when the solenoid valve or the drain pump is not working, calculate the voltage of AD_PUMP_1_TEST: U = 4.7 / (4.7 + 4.7)*5 = 2.5V; from Figure 9B it can be known that calculate the fluctuating voltage of AD_PUMP_1_TEST: U = 2.6 - 2.48 = 0.12V; from Figure 9C it can be known that calculate the fluctuating voltage of AD_PUMP_1_TEST: U = 2.72 - 2.48 = 0.24V. In the embodiments of the present application, a fluctuation threshold will be set first. This fluctuation threshold is equivalent to the second fluctuation threshold in the above embodiments. This fluctuation threshold can be 0.15V, 0.16V, 0.2V, etc. Here, take the fluctuation threshold of 0.16V as an example; then, according to the maximum voltage value and the minimum voltage value of the fluctuating voltage, it can be judged whether the current drain pump is blocked. If the difference between the maximum voltage value and the minimum voltage value is greater than the fluctuation threshold, it is judged that the drain pump is blocked. At this time, the difference is 0.24V, 0.24V is greater than 0.16V, that is, the difference is greater than the fluctuation threshold. Then, it is judged that the current drain pump is blocked, so as to timely close the drain pump to prevent its damage, and the user can also be reminded to check. Among them, the "fluctuating voltage" here corresponds to the "fluctuation information" in the above embodiments.

[0156] In addition, the principle of whether the solenoid valve works and the overcurrent detection of the solenoid valve is the same as that of the drain pump, which is to detect according to the voltage fluctuation, so as to reduce the damage of the solenoid valve and remind the user whether the solenoid valve works normally.

[0157] In the embodiments of the present application, it is judged whether the solenoid valve or the drain pump is normally opened according to the fluctuating voltage, that is, it is judged whether the solenoid valve or the drain pump is normally opened through the maximum voltage value and the minimum voltage value. Thus, when the solenoid valve or the drain pump should be opened but is not normally opened, the user is alarmed and reminded, so that the solenoid valve and the drain pump can be immediately closed, and the damage probability of the solenoid valve and the drain pump can be reduced.

[0158] Based on the foregoing embodiments, an embodiment of the present application provides a detection device. Each module included in the device, as well as each unit included in each module, can be implemented by a processor in a computer device; of course, it can also be implemented by specific logic circuits. During implementation, the processor can be a central processing unit (CPU), a microprocessor unit (MPU), a digital signal processor (DSP), or a field programmable gate array (FPGA), etc.

[0159] Another embodiment of the present application provides a detection device. Figure 10 It is a schematic structural diagram of the detection device provided by the embodiment of the present application. As Figure 10 shown, the detection device 1000 includes:

[0160] A control module 1001, configured to output a control signal to turn on the switch circuit;

[0161] An acquisition module 1002, configured to acquire the detection voltage of the voltage detection terminal;

[0162] A determination module 1003, configured to determine the working state of the component to be detected based on the detection voltage.

[0163] In some embodiments, the determination module 1003 includes:

[0164] A first determination sub-module, configured to determine the fluctuation information of the detection voltage based on the detection voltage;

[0165] A second determination sub-module, configured to determine the working state of the component to be detected based on the fluctuation information.

[0166] In some embodiments, the first determination sub-module includes:

[0167] An acquisition unit, configured to acquire the maximum voltage value of the detection voltage and the minimum voltage value of the detection voltage within a preset period;

[0168] A first determination unit, configured to determine the difference between the maximum voltage value and the minimum voltage value;

[0169] A second determination unit, configured to determine the difference as the fluctuation information.

[0170] In some embodiments, the second determination sub-module includes:

[0171] A third determination unit, configured to determine that the fluctuation information is less than a first fluctuation threshold, and determine that the working state of the component to be detected is a closed state;

[0172] A fourth determination unit, configured to determine that the fluctuation information is greater than the first fluctuation threshold and less than a second fluctuation threshold, and determine that the working state of the component to be detected is an open state, where the second fluctuation threshold is greater than the first fluctuation threshold;

[0173] A fifth determination unit, configured to determine that the fluctuation information is greater than the second fluctuation threshold, and determine that the working state of the component to be detected is an abnormal state.

[0174] In some embodiments, the determination module 1003 is further configured to determine a detection result of the component to be detected based on the working state of the component to be detected.

[0175] In some embodiments, the determination module 1003 includes:

[0176] A third determination sub-module, configured to determine that the working state of the component to be detected is the abnormal state, and determine that the detection result of the component to be detected is abnormal operation;

[0177] A fourth determination sub-module, configured to determine that the working state of the component to be detected is the open state or the closed state, determine the current clothing processing process of the clothing processing device, and determine that the detection result of the component to be detected is normal or abnormal based on the current clothing processing process and the working state of the component to be detected.

[0178] In some embodiments, the fourth determination sub-module includes:

[0179] A sixth determination unit, configured to determine a reference state of the component to be detected based on the current clothing processing process;

[0180] A seventh determination unit, configured to determine that the working state of the component to be detected is consistent with the reference state, and determine that the detection result of the component to be detected is normal operation;

[0181] An eighth determination unit, configured to determine that the working state of the component to be detected is inconsistent with the reference state, and determine that the detection result of the component to be detected is abnormal operation.

[0182] In some embodiments, the control module 1001 is further configured to determine that the detection result of the component to be detected is the abnormal operation, and control the clothing processing device to pause the clothing processing program; the detection device 1000 further includes:

[0183] An output module, configured to generate and output an alarm message based on the detection result, and / or turn off the component to be detected.

[0184] It should be noted that the description of the detection device in the embodiments of the present application is similar to the description of the above method embodiments and has similar beneficial effects as the method embodiments. Therefore, it will not be elaborated here. For the technical details not disclosed in the embodiments of the present device, please refer to the description of the method embodiments of the present application for understanding.

[0185] It should be noted that in the embodiments of the present application, if the above detection method is implemented in the form of software functional modules and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiments of the present application, in essence, or the part that contributes to the related technology, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROMs), magnetic disks, or optical discs that can store program codes. In this way, the embodiments of the present application are not limited to any specific combination of hardware and software.

[0186] Correspondingly, the embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the detection method provided in the above embodiments is implemented.

[0187] The embodiments of the present application provide an electronic device. Figure 11 is a schematic diagram of the composition structure of the electronic device provided in the embodiments of the present application. As Figure 11 shown, the electronic device 1100 includes: a processor 1101, at least one communication bus 1102, a user interface 1103, at least one external communication interface 1104, and a memory 1105. Among them, the communication bus 1102 is configured to implement connection communication between these components. Among them, the user interface 1103 may include a display screen, and the external communication interface 1104 may include a standard wired interface and a wireless interface. Among them, the processor 1101 is configured to execute the program of the detection method stored in the memory to implement the detection method provided in the above embodiments.

[0188] The descriptions of the above embodiments of the electronic device and the storage medium are similar to the descriptions of the above method embodiments and have similar beneficial effects as the method embodiments. For the technical details not disclosed in the embodiments of the electronic device and the storage medium of the present application, please refer to the description of the method embodiments of the present application for understanding.

[0189] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the "in one embodiment" or "in an embodiment" that appears throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics may be combined in one or more embodiments in any suitable manner. It should be understood that in various embodiments of the present application, the magnitude of the serial numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application. The serial numbers of the embodiments of the present application above are only for description and do not represent the advantages or disadvantages of the embodiments.

[0190] It should be noted that in this text, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including such element.

[0191] In several embodiments provided by the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined, or can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling, direct coupling or communication connection between the components shown or discussed with each other can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0192] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units; they can be located in one place or distributed to multiple network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0193] In addition, each functional unit in the embodiments of the present application can be all integrated in one processing unit, or each unit can be separately used as a unit, or two or more units can be integrated in one unit; the above integrated units can be implemented in the form of hardware, or in the form of a combination of hardware and software functional units.

[0194] Those of ordinary skill in the art can understand that all or part of the steps to implement the above method embodiments can be completed by hardware related to program instructions. The foregoing program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps including those of the above method embodiments; and the foregoing storage medium includes: various media such as removable storage devices, ROMs, magnetic disks, or optical discs that can store program codes.

[0195] Alternatively, if the above integrated units of the present application are implemented in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the embodiments of the present application, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a product to execute all or part of the methods described in the various embodiments of the present application. And the foregoing storage medium includes: various media such as removable storage devices, ROMs, magnetic disks, or optical discs that can store program codes.

[0196] As described above, the above are only the implementation manners of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claimed rights.

Claims

1. A detection method for an abnormal judgment circuit of a clothing treatment device, characterized in that, the abnormal judgment circuit of the clothing treatment device is used to detect the working state of a component to be detected, and the abnormal judgment circuit includes: a switch circuit having a first terminal, a second terminal and a third terminal; a control circuit including a control signal input terminal and a fourth terminal; a detection circuit including a voltage detection terminal and a fifth terminal; wherein, the fourth terminal is connected to the second terminal, the fifth terminal is connected to the third terminal, and the component to be detected is connected to the first terminal; the method includes: inputting a control signal to the control signal input terminal to turn on or off the switch circuit; acquiring the detected voltage of the voltage detection terminal; determining the working state of the component to be detected based on the detected voltage; wherein, the determining the working state of the component to be detected based on the detected voltage includes: determining the fluctuation information of the detected voltage based on the detected voltage; determining the working state of the component to be detected based on the fluctuation information; wherein, the determining the working state of the component to be detected based on the fluctuation information includes: determining that the fluctuation information is less than or equal to a first fluctuation threshold, and determining that the working state of the component to be detected is the off state; determining that the fluctuation information is greater than the first fluctuation threshold and less than a second fluctuation threshold, and determining that the working state of the component to be detected is the on state, wherein the second fluctuation threshold is greater than the first fluctuation threshold; determining that the fluctuation information is greater than or equal to the second fluctuation threshold, and determining that the working state of the component to be detected is the abnormal state.

2. The method according to claim 1, characterized in that, the determining the fluctuation information of the detected voltage includes: acquiring the maximum voltage value and the minimum voltage value of the detected voltage within a preset period; determining the difference between the maximum voltage value and the minimum voltage value; determining the difference as the fluctuation information.

3. The method according to claim 1, characterized in that, the method further includes: determining the detection result of the component to be detected based on the working state of the component to be detected.

4. The method according to claim 2, characterized in that, the determining the detection result of the component to be detected based on the working state of the component to be detected includes: determining that the working state of the component to be detected is the abnormal state, and determining that the detection result of the component to be detected is abnormal operation; determining that the working state of the component to be detected is the on state or the off state, determining the current clothing treatment process of the clothing treatment device, and determining that the detection result of the component to be detected is normal or abnormal based on the current clothing treatment process and the working state of the component to be detected.

5. The method according to claim 4, characterized in that, the determining that the detection result of the component to be detected is normal or abnormal based on the current clothing treatment process and the working state of the component to be detected includes: determining the reference state of the component to be detected based on the current clothing treatment process; Determine that the working state of the component to be detected is consistent with the reference state, and determine that the detection result of the component to be detected is normal operation. Determine that the working state of the component to be detected is inconsistent with the reference state, and determine that the detection result of the component to be detected is abnormal operation.

6. The method according to claim 4 or 5, wherein, the method further includes: Determine that the detection result of the component to be detected is the abnormal operation, and control the clothing treatment device to pause the clothing treatment program; Generate and output an alarm message based on the detection result, and / or turn off the component to be detected.

7. The method according to claim 1, wherein, the switching circuit includes a thyristor switch, and the second end is connected to the control electrode of the thyristor switch.

8. The method according to claim 1, wherein, the control circuit includes a power supply VDD1 and a triode T1. The control signal input terminal is connected to the base of the triode T1 to control the conduction or cutoff of the triode T1. The fourth end is connected to the collector of the triode T1, and the power supply VDD1 is connected to the emitter of the triode T1.

9. The method according to claim 1, wherein, the detection circuit includes a power supply VDD2, a first resistor R1 and a second resistor R2. One end of the first resistor R1 is respectively connected to the fifth end and the ground terminal. The other end of the first resistor R1 is respectively connected to the voltage detection terminal and one end of the second resistor R2. The first resistor R1 is used to obtain a voltage signal; the other end of the second resistor R2 is connected to the power supply VDD2.

10. The method according to claim 1, wherein, the component to be detected is a solenoid valve and / or a drain pump. One end of the component to be detected is connected to an AC power supply, and the other end is connected to the first end.

11. A clothing treatment device, wherein, comprises: a memory for storing executable instructions; a processor for implementing the detection method according to any one of claims 1 to 10 when executing the executable instructions stored in the memory.

12. A computer-readable storage medium, wherein, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are configured to execute the detection method according to any one of claims 1 to 10 above.

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