Steam cooking appliance, and detection method and device therefor, storage medium and electronic device

Abstract

The application discloses a steam cooking utensil, a detection method and device thereof, a storage medium and an electronic device. The control method of the steam cooking utensil comprises the following steps: acquiring a state signal of a to-be-detected load of the steam cooking utensil, wherein the to-be-detected load is an alternating current motor load; obtaining a preliminary detection result according to the state signal when the steam cooking utensil is in a power-on stage; and determining a final detection result of the to-be-detected load according to the preliminary detection result and the state signal after the steam cooking utensil enters a starting stage. The detection method of the steam cooking utensil can discover problems of the steam cooking utensil in time, and improve the safety of the steam cooking utensil and the use experience of a user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooking appliances, in particular to a steam cooking appliance and a detection method and device thereof, a storage medium, and an electronic device. BACKGROUND

[0002] With the improvement of living standards, more and more people pay attention to a healthy lifestyle. As a healthy cooking method, steam cooking can better preserve the original flavor and nutritional value of food during cooking, and is favored by people.

[0003] However, the steam cooking appliance in the related art usually has the following problems: (1) the steam cooking appliance may have problems such as assembly error, wire anti-failure, etc., thereby causing the steam cooking appliance to have problems such as inability to work, short circuit, water leakage, or electric leakage; (2) the steam cooking appliance in the related art usually uses a direct current motor load such as a direct current water pump, however, the direct current water pump has a large working current, high loss, and limited service life, and cannot balance the service life under the condition of PWM high frequency and frequent start, thereby limiting the application scenario. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the related art. To this end, a first object of the present application is to provide a control method of a steam cooking appliance to timely find problems in the steam cooking appliance and improve the safety of the steam cooking appliance and the user experience.

[0005] A second object of the present application is to provide a control device of a steam cooking appliance.

[0006] A third object of the present application is to provide a computer-readable storage medium.

[0007] A fourth object of the present application is to provide an electronic device.

[0008] A fifth object of the present application is to provide a steam cooking appliance.

[0009] To achieve the above objects, a detection method of a steam cooking appliance is provided in a first aspect of the present application, the method comprising the following steps: acquiring a state signal of a to-be-detected load of a steam cooking appliance, wherein the to-be-detected load is an alternating current motor load; obtaining a preliminary detection result according to the state signal when the steam cooking appliance is in a power-on stage; and determining a final detection result of the to-be-detected load according to the preliminary detection result and a state signal after the steam cooking appliance enters a start-up stage.

[0010] To achieve the above object, the second aspect of the present application provides a detection device of a steam cooking utensil, which comprises: a detection circuit, connected to one end of a load to be detected of the steam cooking utensil, for detecting a state signal of the load to be detected, wherein the load to be detected is an alternating current motor load, and the other end of the load to be detected is connected to an alternating current power supply network; and a controller, connected to the detection circuit, for obtaining a preliminary detection result according to the state signal when the steam cooking utensil is in a power-on stage, and determining a final detection result of the load to be detected according to the preliminary detection result and the state signal after the steam cooking utensil enters a starting stage.

[0011] To achieve the above object, the third aspect of the present application provides a computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the detection method of the steam cooking utensil.

[0012] To achieve the above object, the fourth aspect of the present application provides an electronic device, which comprises a memory, a processor and a computer program stored in the memory, and the computer program is executed by the processor to implement the detection method of the steam cooking utensil.

[0013] To achieve the above object, the fifth aspect of the present application provides a steam cooking utensil, which comprises the detection device of the steam cooking utensil or the electronic device.

[0014] The steam cooking utensil, the detection method, the detection device, the storage medium and the electronic device of the present application can first obtain a state signal of a load to be detected of the steam cooking utensil, wherein the load to be detected is an alternating current motor load, and then obtain a preliminary detection result according to the state signal when the steam cooking utensil is in a power-on stage, so as to determine a final detection result of the load to be detected according to the preliminary detection result and the state signal after the steam cooking utensil enters a starting stage. Thus, the steam cooking utensil can be comprehensively detected in the power-on stage and the starting stage, so that problems of the steam cooking utensil can be found in time, and the safety of the steam cooking utensil and the user experience can be improved.

[0015] Additional aspects and advantages of the present application will be better understood from the following description with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a flow chart of the detection method of the steam cooking utensil of one embodiment of the present application;

[0017] Figure 2is a schematic diagram of a steam cooking appliance according to an example of the present application;

[0018] Figure 3 is a flowchart of a water path according to an example of the present application;

[0019] Figure 4 is a circuit diagram of a detection circuit according to an example of the present application;

[0020] Figure 5 is a connection diagram of a water inlet pump according to an example of the present application;

[0021] Figure 6 is a flowchart of a detection method of a steam cooking appliance according to an example of the present application;

[0022] Figure 7 is a flowchart of a detection method of a steam cooking appliance according to another example of the present application;

[0023] Figure 8 is a block diagram of a steam cooking appliance according to an example of the present application. DETAILED DESCRIPTION

[0024] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the same or like designations indicate the same or like elements or elements having the same or similar functionality throughout the drawing figures. The embodiments described below are exemplary and are intended to be illustrative of the present application and are not to be understood as limiting of the present application.

[0025] A steam cooking appliance and a detection method, device and storage medium, and electronic equipment of embodiments of the present application are described below with reference to the attached drawing figures.

[0026] Figure 1 is a flowchart of a detection method of a steam cooking appliance according to an example of the present application.

[0027] As shown in Figure 1 , the detection method of the steam cooking appliance comprises the following steps:

[0028] S11, obtaining a state signal of a to-be-detected load of the steam cooking appliance, wherein the to-be-detected load is an alternating current motor load.

[0029] Specifically, a preset position setting detection device of the steam cooking appliance is provided, which preferably acquires a state signal of a load to be detected of the steam cooking appliance in real time, of course, the state signal can also be acquired at a preset time interval. The load to be detected is an AC motor load, for example, an AC fan, an AC air pump, a water inlet pump, a water pump, etc. After acquiring the state signal of the load to be detected, the detection device can save the state signal. For example, a memory can be pre-installed in the detection device, and then the acquired state signal is stored in the memory, and when a user such as a maintenance personnel needs to check the state of the steam cooking appliance, the state signal stored in the memory is displayed to the user in the form of a table; or the detection device can draw a state change curve of the steam cooking appliance according to the state signal of the load to be detected after acquiring the state signal of the load to be detected, and when a user such as a maintenance personnel needs to check the state of the steam cooking appliance, the state change curve is displayed to the user.

[0030] Optionally, the detection device can also acquire the current stage of the steam cooking appliance while acquiring the state signal of the load to be detected. The current stage of the steam cooking appliance can be detected by the detection device, that is, the detection device can acquire the current stage of the steam cooking appliance in real time or at a preset time interval; the detection device can also receive the current stage of the steam cooking appliance, for example, the steam cooking appliance can send the current stage information to the detection device when entering the power-on stage.

[0031] Alternatively, the detection device can also be in a normally closed state, and is started to acquire the state signal of the load to be detected of the steam cooking appliance after acquiring that the steam cooking appliance enters a preset stage (such as the power-on stage).

[0032] It should be noted that, in order to prevent the above-mentioned AC motor load from being affected by the pressure in the negative half cycle of AC, a rectifier diode can be integrated in the AC motor load, and the detection device acquires the state signal of the AC motor load through the anode of the rectifier diode.

[0033] S12, obtaining a preliminary detection result according to the state signal when the steam cooking appliance is in the power-on stage.

[0034] Specifically, when the detection device obtains that the current stage of the steam cooking appliance is the power-on stage, the state signal of the steam cooking appliance in the power-on stage is obtained; for example, the state signal of the steam cooking appliance in the power-on stage can be obtained according to the state signal stored in the detection device, or the state signal can also be obtained when the steam cooking appliance enters the power-on stage. The state signal of the steam cooking appliance in the power-on stage includes a first signal, a second signal, a third signal and a fourth signal, and then a preliminary detection result can be obtained according to the state signal; if the detection result is the first signal, it is determined that the above result is that the load to be detected is damaged, if the detection result is the second signal, it is determined that the above result is that the load to be detected is installed normally or not assembled, if the detection result is the third signal, it is determined that the above result is that the equipment to be detected is abnormally assembled, and if the detection result is the fourth signal, it is determined that the above result is other conditions.

[0035] The first signal can be a first pulse signal such as a 50Hz pulse waveform, the second signal can be a first level signal such as a 300mv low level signal, the third signal can be a second level signal such as a high level signal, and the fourth signal can be other signals except the first, second and third signals.

[0036] S13, according to the state signal and the preliminary detection result of the steam cooking appliance after entering the start stage, the final detection result of the load to be detected is determined.

[0037] Specifically, after obtaining the preliminary detection result, the steam cooking appliance enters the start stage, and the detection device controls the start of the load to be detected for a preset time with a pre-set pulse driving signal, and obtains the state signal in the process. The state signal of the steam cooking appliance in the start stage includes a second signal, a third signal, a fifth signal, a sixth signal and a seventh signal. The fifth signal is a second pulse signal such as a 25Hz pulse waveform, the sixth signal is a third pulse signal such as the pulse driving signal, and the seventh signal is other signals except the second signal, the third signal, the fifth signal and the sixth signal. Then, according to the combination of the state signals of the steam cooking appliance in the power-on stage and the start stage, the final detection result of the load to be detected is determined.

[0038] Specifically, if the detection result of the power-on stage is the first signal and the detection result of the start stage is the fifth signal, it is determined that the above result is that the load to be detected is damaged; if the detection result of the power-on stage is the second signal and the detection result of the start stage is the second signal, it is determined that the above result is that the load to be detected is not assembled; if the detection result of the power-on stage is the second signal and the detection result of the start stage is the sixth signal, it is determined that the above result is that the load to be detected is working normally; if the detection result of the power-on stage is the third signal and the detection result of the start stage is the third signal, it is determined that the above result is that the installation polarity of the equipment to be detected is wrong; if the combination of the detection results of the power-on stage and the start stage is not any one of the above four combinations, it is determined that the above result is other. Thus, the final detection result can be obtained.

[0039] Further, the detection device uploads the obtained final detection result to a preset position. For example, the user can install an APP corresponding to the steam cooking appliance on his own mobile terminal (such as a mobile phone or a tablet), so that the detection device uploads the final detection result to the mobile terminal through the APP. The detection device can also save the obtained final detection result locally for a preset time, so as to display the saved final detection result to the user when the user calls.

[0040] Thus, the detection method of the steam cooking appliance of the embodiment of the present application can detect the state of the steam cooking appliance when the steam cooking appliance is started, so as to determine the safety of the steam cooking appliance and improve the user experience.

[0041] In an embodiment of the present application, the step S13 can also be:

[0042] Specifically, after obtaining the preliminary detection result, the detection device first determines whether the preliminary detection result is the second signal.

[0043] If the preliminary detection result is not the second signal, the detection device controls the steam cooking appliance not to start and ends the detection, and the detection device uploads the detection result to a preset position. For example, the user can install an APP corresponding to the steam cooking appliance on his own mobile terminal (such as a mobile phone or a tablet), so that the detection device uploads the final detection result to the mobile terminal through the APP. The detection device can also save the obtained final detection result locally for a preset time, so as to display the saved final detection result to the user when the user calls.

[0044] If the preliminary detection result is a 300 mV low-level signal, the steam cooking utensil enters a starting stage, the detection device controls the to-be-detected load to start for a preset time with a preset pulse driving signal, and acquires a state signal in the process. The state signal of the steam cooking utensil in the starting stage includes a second signal, a sixth signal, and an eighth signal. The fifth signal is a second pulse signal such as a 25 Hz pulse waveform, the sixth signal is a third pulse signal such as the pulse driving signal, and the eighth signal is a signal other than the second signal and the sixth signal. Then, the final detection result of the to-be-detected load is determined according to the combination of the state signals of the steam cooking utensil in the power-on stage and the starting stage.

[0045] Specifically, if the detection result in the power-on stage is the second signal and the detection result in the starting stage is the second signal, it is determined that the to-be-detected load is not assembled; if the detection result in the power-on stage is the second signal and the detection result in the starting stage is the sixth signal, it is determined that the to-be-detected load is normally working; and if the combination of the detection results in the power-on stage and the starting stage is not any one of the above two combinations, it is determined that the to-be-detected load is other. Thus, the final detection result can be obtained, and then the detection device can upload the final detection result to a preset position.

[0046] Thus, the time required for detecting the steam cooking utensil can be further shortened.

[0047] In an embodiment of the present application, the steam cooking utensil includes a body, a pot assembly, a water inlet pump, and a steam generator, the water inlet pump is an alternating electromagnetic pump for pumping water into the steam generator, and the to-be-detected load is the water inlet pump.

[0048] The detection method of the steam cooking utensil according to the embodiments of the present application will be described in detail below in combination with a specific example.

[0049] In the specific example, the steam cooking utensil can be as shown in Figure 2 The to-be-detected load is a water inlet pump.

[0050] Specifically, referring to Figure 2 , the steam cooking utensil includes 1, a water tank, 2, a body, 3, a pot assembly, 4.1, an exhaust interface and channel, 4.2, a waste water box, 5, a water inlet pump, 6, a steam generator, and 7, a fan; the exhaust interface and channel and the waste water box are integrally installed, the water inlet pump can be a high-temperature-resistant alternating electromagnetic pump, the steam generator includes but is not limited to a die-cast aluminum contact type, a boiler type, or a thick-film heating process formed steam generator, and its control mode is operated in a constant power or adjustable power mode, and the pot assembly includes a cooking cavity. The flow of the waterway in the steam cooking utensil can be as shown in Figure 3As shown, water is first pumped out of the water tank by the water inlet pump and into the steam generator, which turns the water into steam, which enters the cooking cavity for cooking and then enters the wastewater box. Further, a detection device can be provided on the water inlet pump to obtain a state signal of the water inlet pump. The detection device includes a detection circuit as shown in Figure 4 and an MCU (Micro Control Unit).

[0051] Referring to Figure 4 , the detection circuit includes resistors R151, R152, R153, R154, diodes D153, D154, and capacitor C151, and has an input terminal AC PUMP1 and an output terminal PUMPINT1. The input terminal is used to receive the obtained state signal of the load to be detected of the steam cooking appliance, the state signal is high resistance divided by resistors R151, R152, R153, R154, and voltage clamped by diodes D153, D154, the clamped result is filtered by capacitor C151, and the filtered result is output to the MCU through the output terminal.

[0052] The detection circuit can be specifically connected to a rectifier diode in the water inlet pump, which is an integrated rectifier diode in the water inlet pump, used to avoid the water inlet pump being under pressure in the negative half cycle of alternating current, affecting the service life of the water pump, and its working state includes but is not limited to conventional PWM (Pulse Width Modulation) drive, variable frequency PWM drive and normally open drive mode, wherein PWM drive belongs to pulse drive mode, which has higher requirements for water pump structure and service life. Referring to Figure 5 , the negative electrode of the rectifier diode is terminal 1, and the positive electrode of the rectifier diode is terminal 2, terminal 1 is connected to the live wire, and terminal 2 is connected to the input terminal of the detection circuit. Further, the MCU detects the steam cooking appliance according to the flowchart shown in Figure 6 .

[0053] Specifically, the MCU obtains the state signal of the steam cooking utensil in the power-on stage when it is determined that the steam cooking utensil is in the power-on stage. For example, the state signal of the steam cooking utensil in the power-on stage can be obtained according to the state signal stored in the MCU, or the state signal can also be obtained by the detection circuit when it is determined that the steam cooking utensil enters the power-on stage. The state signal of the steam cooking utensil in the power-on stage includes a 50Hz pulse waveform, a high-level signal, a 300mV low-level signal, and a fourth signal, and then the preliminary detection result can be obtained according to the state signal. Specifically, if the detection result is the 50Hz pulse waveform, it is determined that the above result is that the load to be detected is damaged, if the detection result is the high-level signal, it is determined that the above result is that the equipment to be detected is abnormally assembled, if the detection result is the 300mV low-level signal, it is determined that the above result is that the load to be detected is normally installed or not assembled, and if the detection result is the fourth signal, it is determined that the above result is other. The fourth signal can be other signals except the 50Hz pulse waveform, the high-level signal, and the 300mV low-level signal. Thus, the preliminary detection result can be obtained.

[0054] Further, after obtaining the preliminary detection result, the steam cooking utensil enters the start-up stage, and the MCU controls the water pump to enter water with a water amount C1 and a water entering time t by using the pre-set pulse driving signal. Since C1 and t are both small values, the water amount in this process can be ignored. The MCU obtains the state signal in this process, and the state signal includes a high-level signal, a 300mV low-level signal, a 25Hz pulse waveform, the pulse driving signal, and a seventh signal. The seventh signal is other signals except the high-level signal, the 300mV low-level signal, the 25Hz pulse waveform, and the pulse driving signal. Then, the final detection result of the load to be detected is determined according to the combination of the state signals of the steam cooking utensil in the power-on stage and the start-up stage.

[0055] Specifically, if the detection result in the power-on stage is the 50Hz pulse waveform and the detection result in the start-up stage is the 25Hz pulse waveform, it is determined that the above result is that the load to be detected is damaged; if the detection result in the power-on stage is the high-level signal and the detection result in the start-up stage is the high-level signal, it is determined that the above result is that the equipment to be detected is installed with a polarity error; if the detection result in the power-on stage is the 300mV low-level signal and the detection result in the start-up stage is the 300mV low-level signal, it is determined that the above result is that the load to be detected is not assembled; if the detection result in the power-on stage is the 300mV low-level signal and the detection result in the start-up stage is the pulse driving signal, it is determined that the above result is that the load to be detected is normally working; and if the combination of the detection results in the power-on stage and the start-up stage is not any one of the above four combinations, it is determined that the above result is other. Thus, the final detection result can be obtained.

[0056] Further, the MCU uploads the final detection result obtained above to a preset location. For example, the user can install an APP corresponding to the steam cooking appliance on his own mobile terminal (such as a mobile phone or a tablet), so that the detection device uploads the final detection result to the mobile terminal through the APP. The detection device can also save the final detection result obtained above locally for a preset time, so as to display the saved final detection result to the user when the user calls for it.

[0057] Alternatively, as shown in FIG. 6, after obtaining the preliminary detection result, the MCU first determines whether the preliminary detection result is a 300 mV low-level signal. Figure 7

[0058] If the preliminary detection result is not a 300 mV low-level signal, the detection device controls the steam cooking appliance not to start and ends the detection, and the detection device uploads the detection result to a preset location. For example, the user can install an APP corresponding to the steam cooking appliance on his own mobile terminal (such as a mobile phone or a tablet), so that the detection device uploads the final detection result to the mobile terminal through the APP. The detection device can also save the final detection result obtained above locally for a preset time, so as to display the saved final detection result to the user when the user calls for it.

[0059] If the preliminary detection result is a 300 mV low-level signal, the steam cooking appliance enters a starting stage, and the detection device controls the load to be detected to start for a preset time with a pre-set pulse driving signal and acquires a state signal in the process. The state signal of the steam cooking appliance in the starting stage includes the 300 mV low-level signal, the pulse driving signal, and an eighth signal, which is other than the 300 mV low-level signal and the pulse driving signal. Then, the final detection result of the load to be detected is determined according to the combination of the state signals of the steam cooking appliance in the power-on stage and the starting stage.

[0060] Specifically, if the detection result in the power-on stage is a 300 mV low-level signal and the detection result in the starting stage is a 300 mV low-level signal, it is determined that the load to be detected is not assembled; if the detection result in the power-on stage is a 300 mV low-level signal and the detection result in the starting stage is the pulse driving signal, it is determined that the load to be detected is working normally; and if the combination of the detection results in the power-on stage and the starting stage is not any of the above two combinations, it is determined that the load to be detected is other. Thus, the final detection result can be obtained, and the detection device can upload the final detection result to a preset location.

[0061] ​It should be noted that, during the cooking process of the steam cooking utensil, the temperature of the steam generator of the steam cooking utensil can also be detected in real time; then the MCU can fit the temperature rise curve of the steam generator according to the detected temperature of the steam generator, and calculate the slope of the temperature rise curve of the steam generator; so as to determine the working state of the water inlet pump according to the slope of the temperature rise curve, for example, the above-mentioned temperature rise curve slope can be compared with the preset temperature rise slope threshold, and the working state of the water inlet pump is determined according to the comparison result. Thus, the working state of the water inlet pump can be monitored in real time, and abnormal protection can be performed through judging information such as abnormal working of the water inlet pump causing dry burning of the steam generator, thereby improving the use safety of the steam cooking utensil.

[0062] In summary, the detection method of the steam cooking utensil of the embodiment of the present application can detect the state of the to-be-detected load before starting cooking of the steam cooking utensil, comprehensively judge whether the steam cooking utensil can work normally, and thus complete the power-on self-test. The above-mentioned detection method detects in two stages of power-on stage and starting stage, detects the level and frequency through the combination of the detection circuit and the MCU, judges the level and signal frequency in the interrupt mode, and thus realizes comprehensive detection of the to-be-detected load. This method can detect the installation state, working state and storage state of the steam cooking utensil, has wide application range, can be detected without water, and meets the production and assembly requirements. Moreover, the detection duration of the power-on stage and the starting stage is short, the detection speed is fast, and the overall cooking process of the cooking utensil is not affected. Thus, problems of the steam cooking utensil can be found in time, and the safety of the steam cooking utensil and the use experience of the user are improved.

[0063] Figure 8 is the structural block diagram of the detection device of the steam cooking utensil of the embodiment of the present application.

[0064] As shown in Figure 8 , the control device 100 of the steam cooking utensil includes a detection circuit 200 and a controller 300.

[0065] Specifically, the detection circuit 200 is connected with one end of the to-be-detected load of the steam cooking utensil, and is used for detecting the state signal of the to-be-detected load, wherein the to-be-detected load is an AC motor load, and the other end of the to-be-detected load is used to connect an AC power supply network; the controller 300 is connected with the detection circuit 200, and is used for obtaining a preliminary detection result according to the state signal when the steam cooking utensil is in the power-on stage, and determining a final detection result of the to-be-detected load according to the preliminary detection result and the state signal after the steam cooking utensil enters the starting stage.

[0066] The control device of the steam cooking utensil can comprehensively detect the steam cooking utensil in the power-on stage and the starting stage, and improve the use experience of the user.

[0067] In one embodiment of the present application, the detection circuit 200 comprises: a plurality of voltage division resistors connected in series, one end of the plurality of voltage division resistors connected in series connected with one end of the load to be detected, and the other end of the plurality of voltage division resistors connected in series connected with the controller 300; a second diode and a first diode, the cathode of the first diode connected with the anode of the second diode and the other end of the plurality of voltage division resistors connected in series respectively, the anode of the first diode grounded, and the cathode of the second diode connected with a preset voltage; and a filter capacitor connected in parallel with the first diode.

[0068] It should be noted that other specific embodiments of the steam cooking device of the present application can refer to the control method of the steam cooking appliance described above.

[0069] In summary, the control device of the steam cooking appliance of the present application can determine whether the steam cooking appliance can work normally by detecting the state of the load to be detected before the steam cooking appliance starts cooking, thereby completing the power-on self-test. The detection method described above detects in the power-on stage and the start-up stage, detects the level and frequency by combining the detection circuit with the MCU, determines the level and signal frequency by using the interrupt mode, thereby realizing the comprehensive detection of the load to be detected. This method can detect the installation state, working state and storage state of the steam cooking appliance, has a wide range of applications, can be detected without water, and meets the production and assembly requirements. Moreover, the detection duration in the power-on stage and the start-up stage is short, the detection speed is fast, and the overall cooking process of the cooking appliance is not affected. Therefore, the steam cooking appliance can be found in time when there is a problem, and the safety of the steam cooking appliance and the user's experience are improved.

[0070] Further, the present application provides a computer readable storage medium.

[0071] In the embodiments of the present application, the computer readable storage medium stores a computer program, and the computer program is executed by the processor to realize the detection method of the steam cooking appliance described above.

[0072] The computer readable storage medium of the embodiment of the present application, when the computer program thereon is executed by a processor, can detect the state of the load to be detected before the steam cooking utensil starts cooking, comprehensively judge whether the steam cooking utensil can work normally, and thus complete the power-on self-test. The detection method detects in two stages of the power-on stage and the starting stage, detects the level and frequency by combining the detection circuit and the MCU, judges the level and signal frequency in an interrupt mode, and thus comprehensively detects the load to be detected. The method can detect the installation state, working state and storage state of the steam cooking utensil, has wide application range, can be detected without water, meets the production and assembly requirements. The detection duration in the power-on stage and the starting stage is short, the detection speed is fast, and the overall cooking process of the cooking utensil is not affected. Thus, the steam cooking utensil can be found in time when a problem occurs, and the safety of the steam cooking utensil and the use experience of the user are improved.

[0073] Further, the present application provides an electronic device.

[0074] In the embodiment of the present application, the electronic device includes a memory, a processor and a computer program stored in the memory, and the computer program is executed by the processor to implement the detection method of the steam cooking utensil.

[0075] The electronic device of the embodiment of the present application can detect the state of the load to be detected before the steam cooking utensil starts cooking, comprehensively judge whether the steam cooking utensil can work normally, and thus complete the power-on self-test by implementing the detection method of the steam cooking utensil. The detection method detects in two stages of the power-on stage and the starting stage, detects the level and frequency by combining the detection circuit and the MCU, judges the level and signal frequency in an interrupt mode, and thus comprehensively detects the load to be detected. The method can detect the installation state, working state and storage state of the steam cooking utensil, has wide application range, can be detected without water, meets the production and assembly requirements. The detection duration in the power-on stage and the starting stage is short, the detection speed is fast, and the overall cooking process of the cooking utensil is not affected. Thus, the steam cooking utensil can be found in time when a problem occurs, and the safety of the steam cooking utensil and the use experience of the user are improved.

[0076] Further, the present application provides a steam cooking utensil.

[0077] In the embodiment of the present application, the steam cooking utensil includes the detection device of the steam cooking utensil or the electronic device.

[0078] In one embodiment of the present application, the steam cooking utensil includes a body, a pot assembly, a water inlet pump and a steam generator, the water inlet pump is an alternating electromagnetic pump, is used for pumping water to the steam generator, and the load to be detected is the water inlet pump.

[0079] The steam cooking utensil of the embodiment of the present application can, through the detection device of the steam cooking utensil or the electronic device, detect the state of the load to be detected before starting cooking, comprehensively judge whether the steam cooking utensil can work normally, and thus complete the self-checking when starting. The detection method detects in the power-on stage and the starting stage, detects the level and frequency through the detection circuit combined with the MCU, judges the level and signal frequency in the interrupt mode, and thus comprehensively detects the load to be detected. The method can detect the installation state, working state and storage state of the steam cooking utensil, has wide application range, can be detected without water, meets the production and assembly requirements. The detection duration in the power-on stage and the starting stage is short, the detection speed is fast, and the overall cooking process of the cooking utensil is not affected. Thus, the steam cooking utensil can be found in time when problems occur, and the safety of the steam cooking utensil and the user experience are improved.

[0080] It should be noted that the logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a list of executable instructions for implementing logic functions, and can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, a processor-based system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions, or in conjunction with such an instruction execution system, apparatus, or device. For the purposes of this specification, a "computer-readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device, or in conjunction with such an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium include the following: an electrical connection having one or more wires (electrical apparatus), a portable computer diskette (magnetic apparatus), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber (optical apparatus), and a portable compact disc read-only memory (CDROM). In addition, the computer-readable medium can even be paper or other suitable medium on which the program can be printed, because the program can be electronically obtained, for example, by optical scanning of the paper or other medium, followed by electronic conversion into a useable form, and then stored in a computer memory.

[0081] It should be understood that aspects of the application can be implemented in hardware, software, firmware or combinations thereof. In the embodiments described above, various steps or methods can be implemented, for example, through software or firmware in storage media which are executable by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any of the following technologies, known in the art, or their combinations, can be employed: discrete logic circuitry having logic gates for implementing logic functions upon an application of data signals, application-specific integrated circuits having appropriate combinational logic gates, programmable gate arrays (PGA), field-programmable gate arrays (FPGA), and so on.

[0082] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present description, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0083] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0084] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0085] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", and the like should be construed broadly and do not necessarily mean fixedly connected, but can also mean detachably connected, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly defined. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0086] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0087] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those of ordinary skill in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A method for testing steam cooking appliances, characterized in that, Includes the following steps: Acquire the status signal of the load to be detected of the steam cooking appliance, wherein the load to be detected is an AC motor type load; Preliminary detection results are obtained based on the status signal of the steam cooking appliance when it is powered on. Based on the preliminary test results and the status signal of the steam cooking appliance after it enters the start-up phase, the final test result of the load to be tested is determined. The preliminary detection result obtained based on the status signal of the steam cooking appliance when it is powered on includes: The first pulse signal is detected when the steam cooking appliance is in the power-on stage, and the preliminary detection result is that the load to be tested is damaged. When the status signal of the steam cooking appliance is detected to be a first-level signal during the power-on stage, the preliminary detection result is that the load to be tested is installed normally or not assembled. The initial detection result indicates that the equipment under test is malfunctioning because the status signal of the steam cooking appliance when it is powered on is a second-level signal.

2. The testing method for steam cooking appliances as described in claim 1, characterized in that, The step of determining the final detection result of the load to be tested based on the preliminary detection results and the status signal of the steam cooking appliance after entering the start-up phase includes: If the preliminary detection result indicates that the load under test is damaged, and the status signal of the steam cooking appliance after entering the start-up stage is a second pulse signal, then the final detection result is determined to be that the load under test is damaged. If the preliminary detection result indicates that the load to be tested is installed normally or not assembled, and the status signal of the steam cooking appliance after entering the start-up stage is the first level signal, then the final detection result is determined to be that the load to be tested is not assembled. If the preliminary test result indicates that the load under test is installed normally or not assembled, and the status signal of the steam cooking appliance after entering the start-up stage is a third pulse signal, then the final test result is determined to be that the load under test is working normally. If the preliminary test result indicates that the device under test is improperly assembled, and the status signal of the steam cooking appliance after entering the start-up stage is the second level signal, then the final test result is determined to be that the device under test has an incorrect installation polarity.

3. The testing method for steam cooking appliances as described in claim 1, characterized in that, When the load to be tested is an inlet pump, the method further includes: During the cooking process of the steam cooking appliance, the temperature of the steam generator of the steam cooking appliance is monitored in real time; The temperature rise curve of the steam generator is obtained by fitting the temperature, and the slope of the temperature rise curve of the steam generator is calculated. The operating status of the inlet pump is determined based on the slope of the temperature rise curve.

4. The testing method for steam cooking appliances as described in claim 2, characterized in that, The first level signal is a low level signal, the second level signal is a high level signal, the third pulse signal is a pulse drive signal, and the frequency of the second pulse signal is half the frequency of the first pulse signal.

5. A detection device for a steam cooking appliance, characterized in that, include: A detection circuit is connected to one end of the load to be tested of the steam cooking appliance, and is used to detect the status signal of the load to be tested, wherein the load to be tested is an AC motor type load, and the other end of the load to be tested is used to connect to the AC power grid. A controller, connected to the detection circuit, is used to obtain a preliminary detection result based on the status signal of the steam cooking appliance when it is in the power-on stage, and to determine the final detection result of the load to be detected based on the preliminary detection result and the status signal of the steam cooking appliance after it enters the start-up stage. The detection circuit includes: A plurality of voltage divider resistors are connected in series, one end of which is connected to one end of the load to be tested, and the other end of which is connected to the controller; A first diode and a second diode, wherein the anode of the first diode is grounded, the cathode of the first diode is connected to the anode of the second diode and the other end of the series-connected multiple voltage divider resistors, and the cathode of the second diode is connected to a preset voltage; A filter capacitor is connected in parallel with the first diode.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the detection method for steam cooking appliances as described in any one of claims 1-4.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory, characterized in that, When the computer program is executed by the processor, it implements the detection method for steam cooking appliances as described in any one of claims 1-4.

8. A steam cooking appliance, characterized in that, This includes the detection device for a steam cooking appliance as described in claim 5, or the electronic device as described in claim 7.

9. The steam cooking appliance as described in claim 8, characterized in that, The steam cooking appliance includes a body, a pot assembly, a water inlet pump, and a steam generator. The water inlet pump is an AC electromagnetic pump used to pump water into the steam generator. The load to be tested is the water inlet pump.

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