CN116005407A - Abnormality judgment circuit, detection method, device, equipment and computer storage medium - Google Patents

Abstract

The application provides an abnormality judgment circuit, a detection method, a detection device, equipment and a computer storage medium, wherein the abnormality judgment circuit is used for detecting the working state of a part to be detected and comprises a switch circuit, wherein the switch circuit is provided with a first end, a second end and a third end; the control circuit comprises a control signal input end and a fourth end; the detection circuit comprises a voltage detection end and a fifth end; the fourth end is connected with the second end, the fifth end is connected with the third end, and the component to be detected is connected with the first end. The control circuit, the detection circuit and the part to be detected are arranged at different ends of the switch circuit, so that the detection voltage can be conveniently, rapidly and accurately obtained, and the working state of the part to be detected can be rapidly and accurately determined based on the detection voltage.

Description

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

technical field

The present application relates to the technical field of automation control, and relates to but not limited to a detection method, device, laundry processing equipment and computer-readable storage medium.

Background technique

At present, when the washing machine detects whether the solenoid valve and the drain pump are working, it mainly depends on whether the water level frequency changes. In addition, the detection time is relatively long, and it cannot be detected when the solenoid valve and the drain pump work abnormally, so that the solenoid valve and the drain pump are damaged when they work abnormally.

In the related technology, the current voltage of the drain pump is directly detected by the detection circuit, and the state of the drain pump is determined based on the current voltage level of the drain pump. Since the operating voltage of the drain pump of different washing machines may be different, Therefore, the accuracy of the detection results is low, the real-time performance is poor, and the overall robustness is weak.

Contents of the invention

In view of this, the embodiments of the present application provide an abnormality judgment circuit, a detection method, a device, a device, and a computer storage medium.

The technical scheme of the embodiment of the application is realized in this way:

An embodiment of the present application provides an abnormality judgment circuit for clothes processing equipment, which is used to detect the working status of the components to be detected, including:

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 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.

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

In some embodiments, 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 to control the turning on or off of the triode, the fourth terminal is connected to the The collector of the triode is connected, and the power supply VDD1 is connected with the emitter of the triode.

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 respectively connected to the fifth end and the ground end, and one end of the first resistor The other end is respectively connected to the voltage detection end 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.

In some embodiments, the component to be detected is a solenoid valve and/or a drainage 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.

An embodiment of the present application provides a detection method for the above abnormality judgment circuit, the method includes:

The control signal input terminal inputs a control signal to turn on or off the switch circuit;

Obtain the detection voltage of the voltage detection terminal;

Based on the detection voltage, the working state of the component to be detected is determined.

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

determining fluctuation information of the detected voltage based on the detected voltage;

Based on the fluctuation information, the working state of the component to be detected is determined.

In some embodiments, the determining the fluctuation information of the detected voltage includes:

Obtaining the maximum voltage value of the detection voltage and the minimum voltage value of the detection voltage within a preset period;

determining a difference between said maximum voltage value and said minimum voltage value;

The difference is determined as the fluctuation information.

In some embodiments, 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 a first fluctuation threshold, and determining that the working state of the component to be detected is an off state;

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 on state, wherein the second fluctuation threshold is greater than the first fluctuation threshold;

It is determined that the fluctuation information is greater than the second fluctuation threshold, and it is determined that the working state of the component to be detected is an abnormal state.

In some embodiments, the method also includes:

Based on the working state of the component to be detected, the detection result of the component to be detected is determined.

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:

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;

determining that the working state of the component to be detected is the on state or the off state, determining the current laundry processing process of the laundry processing device, and determining based on the current laundry processing process and the working state of the component to be detected The detection result of the component to be detected is normal or abnormal.

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

determining a reference state of the component to be detected based on the current laundry processing process;

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 working normally;

It is determined that the working state of the component to be detected is inconsistent with the reference state, and it is determined that the detection result of the component to be detected is abnormal.

In some embodiments, the method also includes:

Determine that the detection result of the component to be detected is the abnormal operation, and control the laundry processing equipment to suspend the laundry processing program;

Generate and output an alarm message based on the detection result, and/or shut down the component to be detected.

An embodiment of the present application provides a detection device for the above-mentioned abnormality judgment circuit, and the detection device includes:

a control module, configured to output a control signal to turn on the switch circuit;

An acquisition module, configured to acquire the detection voltage of the voltage detection terminal;

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

An embodiment of the present application provides a clothes treatment device, including:

memory for storing executable instructions;

The processor is configured to implement the above detection method when executing the executable instructions stored in the memory.

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

The abnormality judging circuit, detection method, device, equipment and computer storage medium provided by the embodiment of the present application, the abnormality judging circuit is used to detect the working state of the component to be detected, including a switch circuit, the switch circuit has a first end, a second Two terminals 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, and the first 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. Realize that the control circuit, detection circuit and components to be detected are set at different ends of the switch circuit. In this way, the detection voltage can be obtained conveniently, quickly and accurately, and the detection efficiency and accuracy can be improved. It can also be based on the waveform and fluctuation of the detection voltage Quickly and accurately determine the working status of the parts to be tested.

Description of drawings

FIG. 1 is a schematic diagram of the composition and structure of the abnormality judgment circuit provided by the embodiment of the present application;

FIG. 2 is a schematic flow diagram of an implementation of the detection method provided in the embodiment of the present application;

FIG. 3 is a schematic diagram of an implementation process for determining fluctuation information provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of an implementation process for determining the working state provided by the embodiment of the present application;

FIG. 5 is a schematic flow diagram of another implementation of the detection method provided by the embodiment of the present application;

FIG. 6 is a schematic diagram of an implementation process for determining the detection result provided by the embodiment of the present application;

FIG. 7 is a schematic flow diagram of another implementation process for determining the detection result provided by the embodiment of the present application;

FIG. 8 is a schematic diagram of another composition and structure of the abnormality judging circuit provided by the embodiment of the present application;

FIG. 9A is a detection voltage waveform diagram provided by the embodiment of the present application;

FIG. 9B is another detection voltage waveform diagram provided by the embodiment of the present application;

FIG. 9C is another detection voltage waveform diagram provided by the embodiment of the present application;

FIG. 10 is a schematic diagram of the composition and structure of the detection device provided in the embodiment of the present application;

Fig. 11 is a schematic diagram of a composition and structure of a laundry treatment device provided in an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. All other embodiments obtained under the premise of creative labor belong to the scope of protection of this application.

In the following description, references to "some embodiments" describe a subset of all possible embodiments, but it is understood that "some embodiments" may be the same subset or a different subset of all possible embodiments, and Can be combined with each other without conflict.

In the following description, the term "first\second\third" is only used to distinguish similar objects, and does not represent a specific order for objects. Understandably, "first\second\third" is used in Where permitted, the specific order or sequence may be interchanged such that the embodiments of the application described herein can be practiced in other sequences than illustrated or described herein.

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

Based on the problems of low accuracy and poor real-time performance of the detection results of the components to be detected in the clothing processing equipment such as solenoid valves and drainage pumps in the related art, the embodiment of the present application provides an abnormality judgment circuit of the clothing processing equipment for detecting The working state of the components to be detected, Fig. 1 is a schematic structural diagram of the abnormal judgment circuit provided by the embodiment of the present application, as shown in Fig. 1, the abnormal judgment circuit 10 includes:

A switch circuit 101, the switch circuit 101 has a first terminal 11, a second terminal 12 and a third terminal 13;

A control circuit 102, the control circuit 102 includes a control signal input terminal INPUT and a fourth terminal 14;

A detection circuit 103 , the detection circuit 103 includes a voltage detection terminal U _TEST and a fifth terminal 15 .

In the abnormality judgment circuit 10 , the fourth terminal 14 is connected to the second terminal 12 , the fifth terminal 15 is connected to the third terminal 13 , and the component to be detected 01 is connected to the first terminal 11 . In the embodiment of the present application, the connection between different terminals can be implemented through wires.

In the embodiment of the present application, the switch circuit 101 may include a thyristor 1011, and the thyristor may be a bidirectional thyristor. In practice, considering the situation of overcurrent, referring to FIG. 1, the second of the switch circuit 101 The terminal 12 can be connected to the control electrode of the thyristor 1011 through the fourth resistor R4.

Referring to Fig. 1, the control circuit 102 includes a power supply VDD1 and a transistor 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 transistor T1 through the sixth resistor R6, which can be controlled by The signal is used to control the turn-on or turn-off of the transistor T1. For example, when the control signal is at a low level, the transistor T1 is turned on; and when the control signal is at a high level, the transistor T1 is cut off, that is, the transistor T1 is turned off. Continuing to refer to FIG. 1 , the fourth terminal 14 is connected to the collector of the transistor T1 , and the power supply VDD1 is connected to the emitter of the transistor T1 .

With reference to Fig. 1, detection circuit 103 comprises power supply VDD2, first resistance R1 and second resistance R2, in detection circuit 103, one end of first resistance R1, the fifth end 15 are all connected with ground terminal; The other terminal, the voltage detection terminal TEST and one terminal of the second resistor R2 are connected together, the first resistor R1 is used to obtain the voltage signal; the other terminal of the second resistor R2 is connected to the power supply VDD2.

In the embodiment of the present application, the component to be detected may be a solenoid valve in the laundry processing device, may also be a drain pump in the laundry processing device, and may also be a solenoid valve and a drain pump in the laundry processing device.

In practice, in order to improve the sensitivity and robustness of the abnormal judgment circuit, referring to FIG. 1, the switch circuit 101 also includes a third resistor R3, a capacitor C1, and an adjustable resistor VR1; the control circuit 102 also includes a fifth resistor R5; the detection circuit 103 also includes a first diode D1 and a second diode D2.

An embodiment of the present application provides an abnormality judgment circuit, which is used to detect the working state of the component to be detected, including a switch circuit, the switch circuit has a first terminal, a second terminal and a third terminal; a control circuit , comprising a control signal input terminal and a fourth terminal; a detection circuit comprising a voltage detection terminal and a fifth terminal; wherein the fourth terminal is connected to the second terminal, and the fifth terminal is connected to the third terminal , the component to be detected is connected to the first end, since the control circuit, the detection circuit and the component to be detected are arranged at different ends of the switch circuit in the embodiment of the present application, so that it can be obtained conveniently, quickly and accurately The voltage is detected, so as to quickly and accurately determine the working state of the component to be detected based on the detected voltage.

Based on the above-mentioned abnormality judgment circuit, the embodiment of the present application provides a detection method for the above-mentioned abnormality judgment circuit. The detection method provided by the embodiment of the present application can be realized by a computer program. When the computer program is executed, the application is completed. Each step in the detection method that embodiment provides. In some embodiments, the computer program can be executed by an abnormality judgment circuit in the laundry processing device. Fig. 2 is an implementation process of the detection method provided by the embodiment of the present application, which is applied to the above-mentioned abnormality judgment circuit contained in the laundry processing equipment, which can be a washing machine, an all-in-one washing and drying machine, a dishwasher, and the like. As shown in Figure 2, the detection method comprises the following steps:

In step S201, the control signal input terminal inputs a control signal to turn on or turn off the switch circuit.

Here, the control signal can be a DC voltage, and the control signal can be obtained through the power module. Referring to FIG. 1, when the control signal is at a low level, the triode T1 is turned on, and the control electrode of the thyristor switch 1011 outputs a high voltage, which is controllable The silicon switch triggers conduction, thereby turning on the switching circuit. When the control signal is at a high level, the triode T1 is turned off, and the thyristor switch is turned off, so that the conduction switch circuit is turned off, the component to be detected is disconnected from the power supply, and stops working.

Step S202, acquiring the detection voltage of the voltage detection terminal.

Here, a voltmeter is provided in the laundry processing equipment, and the detection voltage of the voltage detection terminal is obtained through the voltmeter, wherein the voltmeter may be an analog electronic voltmeter or a digital voltmeter.

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

Here, the components to be detected include a solenoid valve and a drain pump. Taking the laundry processing equipment as an example, the solenoid valve of the washing machine refers to the water inlet solenoid valve. switch. The drain pump can drain the water in the barrel of the washing machine based on the control command, so that the washing machine can work normally through the cooperation of the solenoid valve and the drain pump.

In actual implementation, the fluctuation information of the detection voltage can be determined first according to the detection voltage, and then the working state of the component to be detected can be determined based on the fluctuation information. Wherein, the maximum voltage value and the minimum voltage value of the detection voltage within the preset period can be obtained, the preset period can be determined according to the period of the actual detection voltage, and the period of the actual detection voltage can be directly determined as the preset period, as To improve data reliability, the preset cycle can also be determined twice or three times the actual detection voltage cycle; then, continue to determine the difference between the maximum voltage value and the minimum voltage value, and determine the difference as the detection Voltage fluctuation information.

In the 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 smaller than the first fluctuation threshold, the fluctuation representing the detection voltage is very small. Even if it does not fluctuate, it is determined that the working state of the component to be detected is an off state, wherein the first fluctuation threshold can be 1 millivolt (MilliVolt, MV), 1.5MV, 2MV, etc.; if the fluctuation information is greater than the first fluctuation threshold and less than the first fluctuation threshold Two fluctuation thresholds, indicating that there are fluctuations in the detection voltage, but if the fluctuations are small, it is determined that the working state of the component to be detected is an open state, wherein the second fluctuation threshold is greater than the first fluctuation threshold, and the second fluctuation threshold can be 0.1 volts ( Volt, V), 0.15V, 0.2V, etc.; if the fluctuation information is greater than the second fluctuation threshold, it indicates that there is a fluctuation in the detection voltage, and if the fluctuation is large, it is determined that the working state of the component to be detected is an abnormal state. That is, the working state of the component to be detected includes a closed state, an open state and an abnormal state, and the working state of the component to be detected can be determined through the above method. In this way, more information can be obtained through the fluctuation information of the detection voltage, thereby avoiding detection errors and improving detection accuracy.

In the embodiment of the present application, through steps S201 to S203, by inputting a control signal such as a voltage to the control signal input terminal of the abnormality judgment circuit, the switch circuit of the abnormality judgment circuit is turned on, or the switch circuit is turned off, so as to control Whether the component to be detected is working or not; then, the detection voltage of the voltage detection terminal is obtained; finally, the working state of the component to be detected is determined based on the detection voltage, and the control circuit, detection circuit and the component to be detected are respectively arranged in Different terminals of the switch circuit, so that the control circuit can quickly and accurately turn on or off the switch circuit through the control signal input terminal; it can also obtain the detection voltage from the voltage detection terminal of the detection circuit in time and accurately, and finally based on the obtained The detection voltage determines the working state of the component to be detected, improving the efficiency and accuracy of working state detection.

In some embodiments, the above step S203 can be realized through the following steps S2031 and S2032:

Step S2031, based on the detection voltage, determine the fluctuation information of the detection voltage.

In actual implementation, as shown in Figure 3, step S2031 "determine the fluctuation information of the detected voltage based on the detected voltage" can be realized through the following steps S20311 to S20313:

Step S20311, obtaining the maximum voltage value of the detection voltage and the minimum voltage value of the detection voltage within a preset period.

Here, the preset period can be determined according to the period of the actual detected voltage, and the period of the actual detected voltage can be directly determined as the preset period. In order to improve data reliability, it can also be determined by 2 times or 3 times the period of the actual detected voltage For the preset period, for example, the period may be 2 seconds, 3 seconds, 4 seconds and so on. Next, the maximum voltage value of the detection voltage and the minimum voltage value of the detection voltage are obtained from the detection voltage by means of magnitude comparison in at least one cycle.

Step S20312, determine the difference between the maximum voltage value and the minimum voltage value.

Here, the minimum voltage value is subtracted from the maximum voltage value through a subtraction algorithm to obtain the difference between the maximum voltage value and the minimum voltage value.

Step S20313, determining the difference as fluctuation information.

Here, the difference determined in step S20312 is directly used as fluctuation information to reflect the voltage fluctuation of the detection voltage.

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

Step S2032, based on the fluctuation information, determine the working state of the component to be detected.

In actual implementation, as shown in Figure 4, step S2032 "determine the working state of the component to be detected based on the fluctuation information" can be realized through the following steps S20321 to S23025:

Step S20321, judging whether the fluctuation information is smaller than the first fluctuation threshold.

Here, the first fluctuation threshold can be 1MV, 1.5MV, 2MV, etc., and determine whether the fluctuation information is smaller than the first fluctuation threshold by the method of size comparison. If it is determined that the fluctuation information is smaller than the first fluctuation threshold, it indicates that the fluctuation of the detection voltage is very small, or even no fluctuation, enter step S20322; if it is determined that the fluctuation information is not less than the first fluctuation threshold, it indicates that the fluctuation of the detected voltage at this time is not very small, then enter step S20323, and continue to judge the difference between the fluctuation information and the second fluctuation threshold. size relationship between them.

Step S20322, determining that the working state of the component to be detected is the closed state.

At this time, if the fluctuation information is less than the first threshold, it indicates that the detection voltage is stable, and this feature matches the off state of the detection component, so it is determined that the working state of the component to be detected is the off state in this case.

Step S20323, judging whether the fluctuation information is smaller than the second fluctuation threshold.

Here, the second fluctuation threshold is greater than the first fluctuation threshold, and the second fluctuation threshold is 0.1V, 0.15V, 0.2V, etc. It is still possible to judge whether the fluctuation information is smaller than the second fluctuation threshold by the method of size comparison. If it is less than the second fluctuation threshold, it means that the fluctuation of the detection voltage is small, and then enter step S20324; if it is determined that the fluctuation information is not less than the second fluctuation threshold, it means that the detection voltage at this time is greater than or equal to the second fluctuation threshold, and the detection voltage at this time If the fluctuation is relatively large, go to step S20325.

Step S20324, determining that the working state of the component to be detected is on.

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

In some embodiments, it can also be considered that the fluctuation information at this time is greater than or equal to the first fluctuation threshold and less than the second fluctuation threshold, that is, when the fluctuation information is greater than or equal to the first fluctuation threshold and less than the second fluctuation threshold, it is determined to The working state of the detection component is an open state.

Step S20325, determining that the working state of the component to be detected is an abnormal state.

At this time, if the fluctuation information is greater than the second fluctuation threshold, it indicates that the detection voltage is not stable, and this feature matches the abnormal state of the detection component, so it is determined that the working state of the component to be detected is an abnormal state in this case.

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

Through the above steps S2031 and S2032, first obtain the maximum voltage value and minimum voltage value of the detected voltage within the preset period; then, determine the difference between the maximum voltage value and the minimum voltage value, and determine the difference as a fluctuation information, used to reflect the voltage fluctuation of the detected voltage; then, judge the magnitude between 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, the working state of the component to be detected is considered to be on; if the fluctuation information is greater than the second fluctuation threshold, the working state of the component to be detected is considered It is an abnormal state, so that the working state of the component to be detected can be determined accurately and quickly through the fluctuation information.

In some embodiments, as shown in FIG. 5, the detection method further includes steps S204 to S207:

Step S204, determining the detection result of the component to be detected based on the working state of the component to be detected.

In actual implementation, as shown in Figure 6, step S204 "determining the detection result of the component to be detected based on the working state of the component to be detected" can be realized through the following steps S2041 to S2043:

Step S2041, judging whether the working state of the component to be detected is an abnormal state.

Here, if it is judged that the working state of the component to be detected is an abnormal state, then enter step S2042; if it is judged that the working state of the component to be detected is not an abnormal state, then the working state of the component to be detected is a closed state or an open state, then enter step S2042. S2043.

Step S2042, determining that the detection result of the component to be detected is abnormal operation.

At this time, the working state of the component to be detected has been directly determined to be an abnormal state through the fluctuation information, so it can be considered that the detection result of the component to be detected is abnormal.

Step S2043, determine the current laundry processing process of the laundry processing equipment, and determine whether the detection result of the component to be detected is normal or abnormal based on the current laundry processing process and the working status of the component to be detected.

At this time, the working state of the component to be detected is on or off, so the detection result of the component to be detected cannot be directly known; then, the current laundry processing process of the laundry processing device can be obtained by reading the instruction ; Finally, based on the current laundry processing process and working status, determine whether the detection result of the component to be detected is normal or abnormal.

The clothes processing device may be a washing machine, an all-in-one washer-dryer, a dishwasher, and other household appliances with water inlet and drain functions. Taking the laundry processing equipment as an example of a washing machine, when the washing machine executes a quick washing program, the washing machine can sequentially perform processes such as water intake, washing, draining, and dehydration.

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

Step S431, determining the reference state of the component to be detected based on the current laundry processing process.

In actual implementation, each laundry processing 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 the normal execution of the laundry processing process is ensured.

For example, take the laundry processing equipment as a washing machine, and the components to be detected are a solenoid valve and a drain pump. If the washing machine is currently in the draining process, on the one hand, the solenoid valve needs to be closed to prevent water from being injected into the washing machine; Drainage, then, in this process, the reference state of the solenoid valve is the closed state, and the reference state of the drain pump is the open state.

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 working normally.

Following the above example, if it is determined that the working state of the solenoid valve is closed and the working state of the drain pump is open, it is considered that the working state of the component to be detected is consistent with the reference state. At this time, the solenoid valve does not flow into the washing machine. Water injection, and the drainage pump can help to complete the drainage process, then it is determined that the detection result of the component to be detected is normal operation.

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.

Following the above example, if it is determined that the working state of the solenoid valve is open and/or the working state of the drain pump is closed, 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 drain pump If the pump hinders the normal drainage process, then it is determined that the detection result of the component to be detected is abnormal operation.

Step S205, judging whether the detection result of the component to be detected is abnormal operation.

Here, if the detection result of the component to be detected is not abnormal, that is, the detection result of the component to be detected is normal, which means that the working state of the component to be detected at this time matches the current clothing processing process, then return to step S101, Continue to detect; if the detection result of the component to be detected is that it is working abnormally, then enter step S206, that is, suspend the laundry processing procedure, so as to prevent the abnormal situation from continuing to occur.

Step S206, controlling the laundry treatment device to suspend the laundry treatment program.

At this time, it indicates 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, the clothing processing equipment can be controlled by the stop command Pause the laundry program to avoid damaging the laundry machine or damaging the laundry in the laundry machine.

In some embodiments, when the detection result of the component to be detected is abnormal, the control circuit can control the working state of the component to be detected to change, so that the changed working state is consistent with the reference state, so that the to-be-detected The test result of the part is normal. It is determined that the component to be detected and the clothes processor are running the clothes treatment program normally.

Step S207, generating and outputting an alarm message based on the detection result, and/or shutting down the component to be detected.

When "generating and outputting an alarm message based on the detection result" in step S207 is actually implemented, it may be implemented in at least one of the following four ways:

Way 1: Control the first display module of the laundry processing device to display the first prompt information, the first prompt information is used to prompt that the components to be detected are working abnormally.

Here, the first display module may be a display screen, and the first prompt information may be in the form of text, image, etc. In this way, the display screen of the clothes processing device may display Unusual prompt information.

Method 2: the second display module controlling the laundry processing equipment displays a fault code, and the fault code is used to prompt that the components to be detected are working abnormally.

Here, the second display module can also be a display screen of the clothes processing equipment, and the display screen can be the same display screen as the display screen in mode 1, and the display screens in mode 1 and mode 2 refer to different display areas in the same display screen; The display screen may also be different from the display screen in the first manner, that is, the laundry treatment device includes at least two display screens.

In the embodiment of the present application, a fault code can also be set for the abnormal operation of the component to be detected, for example, the fault code can be: E001; then, the fault code can be displayed through the second display module.

Mode 3: the alarm module controlling the laundry processing equipment sends out a first alarm sound, which is used to prompt that the components to be detected are working abnormally.

Here, the laundry processing device is provided with an alarm module, and the alarm module may be a buzzer, and the first alarm sound may be a one-time short sound or a continuously repeated sound. In order to play a warning role, the first alarm sound is sent out through the alarm module.

Method 4: The sending module controlling the laundry processing equipment sends the fault code to the terminal that has established a connection relationship with the laundry processing equipment.

Here, the laundry processing device may also establish a communication connection with the terminal, and the communication connection may be a wired communication connection or a wireless communication connection. The terminal can be a smart phone, smart wearable device, TV, etc. By sending the fault code to the terminal, the flexibility of the alarm message is improved, so that the outside world can learn about the abnormality through various channels.

In some embodiments, when the detection result of the component to be detected is abnormal operation, the control circuit of the component to be detected may also be used to control the component to be detected to be turned off.

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, the component to be detected is controlled to be closed, or the clothes processing program is suspended, and the first prompt message, fault code, and first alarm sound are generated and output Waiting for an alarm message, the alarm message can be output by the laundry processing device, and the alarm message can also be output by other terminals, and the other terminal has established a communication connection with the laundry processing device. Through flexible and changeable alarms, abnormalities can be reported in time, and damage to the clothes treatment equipment or the clothes in the clothes treatment equipment can be avoided.

Based on the above-mentioned embodiments, the embodiment of the present application further provides a detection method, which is used to detect the solenoid valve and the drain pump in the washing machine. The embodiment of the present application adds a solenoid valve control circuit and a drain pump control circuit respectively. Detection circuit, the detection circuit here is equivalent to the abnormality judgment circuit in the above-mentioned embodiment, the detection circuit can not only accurately detect whether the solenoid valve and the drain pump are open, but also the detection time is very short, and when the solenoid valve and the drain pump are abnormal It can also be accurately detected when working, so that the solenoid valve and the drain pump can be closed immediately, reducing the damage of the solenoid valve and the drain pump.

In actual implementation, with reference to Figure 8, a detection circuit is added to the thyristor circuit in the control circuit of the solenoid valve and the drain pump, wherein the circuit 81 in the circle is the added detection circuit, and the circuit 82 outside the circle is the solenoid valve Or the control circuit and switch circuit of the drainage pump. When the thyristor of the solenoid valve or the drain pump is not working, a fixed voltage value is detected, wherein the "not working" here corresponds to the "closed state" in the above-mentioned embodiment; when the solenoid valve or the drain pump What is detected during work is a fluctuating voltage range, where the "work" here corresponds to the "open state" in the above embodiment; when the solenoid valve is over-current or the drain pump is blocked, a relatively large voltage fluctuation is detected range, wherein the "overcurrent or locked rotor" here corresponds to the "abnormal state" in the above-mentioned embodiments.

In FIG. 8 , the detection circuit is the detection circuit of one part of the solenoid valve or the drain pump, and the other detection circuit is similar to the detection circuit in FIG. 8 . Wherein, in the detection circuit 81, the first resistor R1 and the second resistor R2 can be resistors with a resistance value of 4.7 kiloohms, the seventh resistor R7 and the eighth resistor R8 can be resistors with 0 ohms, the seventh resistor R7 and the The eighth resistor R8 acts as a current limiter; the tenth resistor R10 can be a 1 ohm resistor; the ninth resistor R9 can be an adjustable resistor, where the resistance of the ninth resistor R9 can be 0 ohm, and the ninth resistor R9 can be 0 ohm. When the resistor R9 is 0 ohms, the tenth resistor R10 is short-circuited, wherein the ninth resistor R9 and the tenth resistor R10 can reflect the fluctuation range of the detection voltage; the power supply VDD2 can be 5 volts.

In the control circuit and switch circuit 82, the third resistor R3 can be a resistor of 1 kohm, the capacitor C1 can be a capacitor of 10 nanofarads, the fifth resistor R5 can be a resistor of 10 kohm, and the sixth resistor R6 can be a resistor of 4.7 A resistor of 1000 ohms, the power supply VDD1 can be 5 volts, and the transistor T1 can be a PNP transistor or an NPN transistor.

Exemplarily, based on the detection circuit in FIG. 8, the detection results shown in FIGS. 9A, 9B and 9C can be obtained, wherein the waveform diagram corresponding to 91 in FIG. 9A is the detection voltage waveform diagram when the solenoid valve or the drain pump is not working. The waveform diagram corresponding to 92 in FIG. 9B is the detection voltage waveform diagram when the drainage pump is working normally, and the waveform diagram corresponding to 93 in FIG. 9C is the detection voltage waveform diagram when the drainage pump is in an abnormal state.

As can be seen from Figure 9A, 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; as can be seen from Figure 9B, calculate the fluctuation voltage of AD_PUMP_1_TEST: U=2.6- 2.48=0.12V; As can be seen from Figure 9C, the fluctuation voltage of AD_PUMP_1_TEST is calculated: U=2.72-2.48=0.24V. In the embodiment of this application, a fluctuation threshold will be set first, which is equivalent to the above-mentioned embodiment. The second fluctuation threshold, the fluctuation threshold can be 0.15V, 0.16V, 0.2V, etc. Here, take the fluctuation threshold value of 0.16V as an example; then, according to the maximum voltage value and minimum voltage value of the fluctuation voltage, it can be judged that the current drainage 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 drainage pump is blocked. At this time, the difference is 0.24V, and 0.24V is greater than 0.16V, that is, the difference is greater than the fluctuation threshold , then, it is judged that the current drainage pump is blocked, so as to shut down the drainage pump in time to prevent its damage, and remind the user to check. Wherein, the "fluctuation voltage" here corresponds to the "fluctuation information" in the above-mentioned embodiments.

In addition, whether the solenoid valve is working or not and the principle of solenoid valve overcurrent detection is the same as that of the drain pump, which is detected based on voltage fluctuations, thereby reducing damage to the solenoid valve and reminding the user whether the solenoid valve is working normally.

In the embodiment 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, whether the solenoid valve or the drain pump is normally opened is judged by the maximum voltage value and the minimum voltage value, so that when the solenoid valve or the drain pump should When it is opened but not opened normally, it will alarm to remind the user, so that the solenoid valve and the drain pump can be closed immediately, and the damage probability of the solenoid valve and the drain pump can be reduced.

Based on the aforementioned embodiments, this embodiment of the present application provides a detection device. The modules included in the device and the units included in each module can be implemented by a processor in a computer device; of course, it can also be implemented by a specific logic circuit. Realize; in the process of implementation, the processor can be a central processing unit (Central Processing Unit, CPU), a microprocessor (Microprocessor Unit, MPU), a digital signal processor (Digital Signal Processing, DSP) or a field programmable gate array (Field Programmable Gate Array, FPGA) and so on.

The embodiment of the present application further provides a detection device. FIG. 10 is a schematic diagram of the composition and structure of the detection device provided in the embodiment of the present application. As shown in FIG. 10, the detection device 1000 includes:

a control module 1001, configured to output a control signal to turn on the switch circuit;

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

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

In some embodiments, the determination module 1003 includes:

A first determining submodule, configured to determine fluctuation information of the detected voltage based on the detected voltage;

The second determination submodule is configured to determine the working state of the component to be detected based on the fluctuation information.

In some embodiments, the first determining submodule includes:

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;

a first determining unit, configured to determine a difference between the maximum voltage value and the minimum voltage value;

A second determining unit, configured to determine the difference as the fluctuation information.

In some embodiments, the second determining submodule includes:

A third determining 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 an off state;

A fourth determining 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 on state, wherein the second fluctuation threshold is greater than the The first fluctuation threshold;

The fifth determining unit is 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.

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

In some embodiments, the determining module 1003 includes:

The third determining submodule is used 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;

The fourth determination sub-module is used to determine that the working state of the component to be detected is the on state or the off state, determine the current laundry processing process of the laundry processing equipment, based on the current laundry processing process and the The working state of the component to be detected determines whether the detection result of the component to be detected is normal or abnormal.

In some embodiments, the fourth determining submodule includes:

A sixth determining unit, configured to determine a reference state of the component to be detected based on the current laundry processing process;

The seventh determining unit is 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;

The eighth determination unit is 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.

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 laundry processing equipment to suspend the laundry processing program; the detection device 1000 further includes:

An output module, configured to generate and output an alarm message based on the detection result, and/or shut down the component to be detected.

It should be noted that the description of the detection device in the embodiment of the present application is similar to the description of the above-mentioned method embodiment, and has similar beneficial effects to the method embodiment, so details are not repeated here. For the technical details not disclosed in the device embodiment of this application, please refer to the description of the method embodiment of this application for understanding.

It should be noted that, in the embodiment of the present application, if the above-mentioned detection method is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solutions of the embodiments of the present application or the part that contributes to the related technologies can be embodied in the form of software products. The computer software products are stored in a storage medium and include several instructions to make A computer device (which may be a personal computer, a server, or a network device, etc.) executes all or part of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes such as U disk, mobile hard disk, read-only memory (Read Only Memory, ROM), magnetic disk or optical disk. Thus, embodiments of the present application are not limited to any specific combination of hardware and software.

Correspondingly, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the detection method provided in the foregoing embodiments is implemented.

An embodiment of the present application provides an electronic device. FIG. 11 is a schematic diagram of the composition and structure of the electronic device provided in the embodiment of the present application. As shown in FIG. 11 , 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 . Wherein, the communication bus 1102 is configured to realize connection and communication between these components. Wherein, 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. Wherein, the processor 1101 is configured to execute the program of the detection method stored in the memory, so as to realize the detection method provided by the above-mentioned embodiments.

The above descriptions of the electronic device and storage medium embodiments are similar to the descriptions of the above method embodiments, and have similar beneficial effects to those of the method embodiments. For 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.

It should be understood that reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present application. Thus, appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the order of execution, and the execution order of the processes should be determined by their functions and internal logic, and should not be used in the embodiments of the present application. The implementation process constitutes any limitation. The serial numbers of the above embodiments of the present application are for description only, and do not represent the advantages and disadvantages of the embodiments.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may 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. In actual implementation, there may be other division methods, such as: multiple units or components can be combined, or May be integrated into another system, or some features may be ignored, or not implemented. In addition, the mutual coupling, or direct coupling, or communication connection between the various components shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms. of.

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

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, or each unit can be used as a single unit, or two or more units can be integrated into one unit; the above-mentioned integration The unit can be realized in the form of hardware or in the form of hardware plus software functional unit.

Those of ordinary skill in the art can understand that all or part of the steps to realize the above method embodiments can be completed by hardware related to program instructions, and the aforementioned programs can be stored in computer-readable storage media. When the program is executed, the execution includes The steps in the foregoing method embodiments; and the aforementioned storage medium includes: various media capable of storing program codes such as removable storage devices, ROMs, magnetic disks, or optical disks.

Alternatively, if the above-mentioned integrated units of the present application are realized 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 this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art 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 Make a product execute all or part of the methods described in the various embodiments of the present application. The aforementioned storage medium includes various media capable of storing program codes such as removable storage devices, ROMs, magnetic disks or optical disks.

The above is only the embodiment of the present application, but the scope of protection of the present application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, and should covered within the scope of protection of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (16)

1. An abnormality determination circuit of a clothes treating apparatus for detecting an operation state of a member to be detected, comprising:

A switching circuit having a first end, a second end, and a third end;

the control circuit comprises a control signal input end and a fourth end;

the detection circuit comprises a voltage detection end and a fifth end;

the fourth end is connected with the second end, the fifth end is connected with the third end, and the component to be detected is connected with the first end.

2. The circuit of claim 1, wherein the switching circuit comprises a thyristor switch, and wherein the second terminal is coupled to a gate of the thyristor switch.

3. The circuit of claim 1, wherein the control circuit comprises a power supply VDD1 and a transistor T1, wherein the control signal input terminal is connected to the base of the transistor T1 to control the transistor T1 to be turned on or off, wherein the fourth terminal is connected to the collector of the transistor T1, and wherein the power supply VDD1 is connected to the emitter of the transistor T1.

4. The circuit according to claim 1, wherein the detection circuit comprises 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, the other end of the first resistor R1 is connected to the voltage detection end and one end of the second resistor R2, respectively, and the first resistor R1 is used for acquiring a voltage signal; the other end of the second resistor R2 is connected to the power supply VDD 2.

5. The circuit 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 source, and the other end is connected to the first end.

6. A detection method for an abnormality determination circuit according to any one of claims 1 to 5, characterized by comprising:

the control signal input end inputs a control signal to turn on or off the switch circuit;

acquiring the detection voltage of the voltage detection end;

and determining the working state of the part to be detected based on the detection voltage.

7. The method according to claim 6, wherein determining the operating state of the component to be detected based on the detection voltage comprises:

determining fluctuation information of the detection voltage based on the detection voltage;

and determining the working state of the part to be detected based on the fluctuation information.

8. The method of claim 7, wherein said determining fluctuation information of said detected voltage comprises:

obtaining a maximum voltage value of the detection voltage and a minimum voltage value of the detection voltage in a preset period;

Determining a difference between the maximum voltage value and the minimum voltage value;

and determining the difference value as the fluctuation information.

9. The method according to claim 7, wherein determining the operating state of the component to be detected based on the fluctuation information includes:

determining that the fluctuation information is smaller than a first fluctuation threshold value, and determining that the working state of the part to be detected is a closing state;

determining that the fluctuation information is larger than the first fluctuation threshold and smaller than a second fluctuation threshold, and determining that the working state of the part to be detected is an on state, wherein the second fluctuation threshold is larger than the first fluctuation threshold;

and determining that the fluctuation information is larger than the second fluctuation threshold value, and determining that the working state of the part to be detected is an abnormal state.

10. The method as recited in claim 9, wherein the method further comprises:

and determining a detection result of the component to be detected based on the working state of the component to be detected.

11. The method according to claim 10, wherein the determining the detection result of the component to be detected based on the operation state of the component to be detected includes:

Determining the working state of the part to be detected as the abnormal state, and determining the detection result of the part to be detected as abnormal working;

determining that the working state of the part to be detected is the opening state or the closing state, determining the current clothes treatment process of the clothes treatment equipment, and determining that the detection result of the part to be detected is normal or abnormal based on the current clothes treatment process and the working state of the part to be detected.

12. The method according to claim 11, wherein 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 operation state of the component to be detected includes:

determining a reference state of the component to be detected based on the current laundry treatment process;

determining that the working state of the part to be detected is consistent with the reference state, and determining that the detection result of the part to be detected is normal in working;

and determining that the working state of the part to be detected is inconsistent with the reference state, and determining that the detection result of the part to be detected is abnormal in working.

13. The method according to claim 11 or 12, characterized in that the method further comprises:

Determining that the detection result of the part to be detected is abnormal in work, and controlling the clothes treatment equipment to pause a clothes treatment program;

and generating and outputting an alarm message based on the detection result, and/or closing the part to be detected.

14. A detection apparatus for an abnormality determination circuit according to any one of claims 1 to 5, characterized in that the detection apparatus includes:

the control module is used for outputting a control signal to conduct the switching circuit;

the acquisition module is used for acquiring the detection voltage of the voltage detection end;

and the determining module is used for determining the working state of the component to be detected based on the detection voltage.

15. A laundry treatment apparatus, comprising:

a memory for storing executable instructions;

a processor for implementing the detection method of any one of claims 6 to 13 when executing executable instructions stored in the memory.

16. A computer readable storage medium having stored therein computer executable instructions configured to perform the detection method of any of the preceding claims 6 to 13.

Images