CN110934485A - Control method and device of cooking appliance - Google Patents
Control method and device of cooking appliance Download PDFInfo
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- CN110934485A CN110934485A CN201811116007.4A CN201811116007A CN110934485A CN 110934485 A CN110934485 A CN 110934485A CN 201811116007 A CN201811116007 A CN 201811116007A CN 110934485 A CN110934485 A CN 110934485A
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- 238000010411 cooking Methods 0.000 title claims abstract description 156
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000010438 heat treatment Methods 0.000 claims abstract description 126
- 230000002159 abnormal effect Effects 0.000 claims abstract description 33
- 238000001514 detection method Methods 0.000 claims description 98
- 238000004891 communication Methods 0.000 claims description 10
- 230000007257 malfunction Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
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- 238000005034 decoration Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0802—Control mechanisms for pressure-cookers
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/09—Safety devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
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Abstract
The invention discloses a control method and device of a cooking appliance. Wherein, the method comprises the following steps: detecting whether a heating module of the cooking appliance is in failure; and sending out prompt information under the condition that the heating module is detected to be in fault, wherein the prompt information is used for prompting a user that the heating module of the cooking appliance is in fault. The invention solves the technical problem that the controller of the cooking appliance can not control the disconnection of the relay, and the heating module is in an abnormal heating state to cause potential safety hazard in the related technology.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a control method and device of a cooking appliance.
Background
At present, a plurality of cooking appliance products, in particular low-cost electric pressure cooker products, mostly adopt a lower-cost electric touch relay to control a heating plate to heat. The service life of the conventional commonly used relay is about 10 ten thousand times, the relay is frequently switched on and off in the working process, and the reliability is reduced after the relay is used for a long time; in the frequent on-off process of relay, the phenomenon of striking sparks appears easily, leads to the relay contact to take place the adhesion phenomenon, and the disconnection of relay can not be controlled to the controller, and the dish that generates heat is in the unusual heating state, takes place the accident easily.
Aiming at the technical problems that the controller of the cooking appliance can not control the disconnection of the relay and the heating plate is in an abnormal heating state to cause potential safety hazards in the related art, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides a control method and a control device of a cooking appliance, and aims to at least solve the technical problems that in the related art, a controller of the cooking appliance cannot control the disconnection of a relay, and a heating module is in an abnormal heating state, so that potential safety hazards are caused.
According to an aspect of an embodiment of the present invention, there is provided a control method of a cooking appliance, including: detecting whether a heating module of the cooking appliance is in failure; and sending prompt information under the condition that the heating module is detected to be in fault, wherein the prompt information is used for prompting a user that the heating module of the cooking appliance is in fault.
By applying the technical scheme of the invention, whether the heating module of the cooking appliance is in fault is detected, and the prompt message is sent out under the condition that the heating module is detected to be in fault, so that the user is prompted by the prompt message that the heating module of the cooking appliance is in fault. The heating module of the cooking appliance is subjected to fault detection, and is timely processed when the heating module breaks down, the heating module is controlled to normally work, the risk of abnormal work of the heating module of the cooking appliance is reduced, the use experience of a user is improved, the problem that the controller cannot control the disconnection of the relay in the cooking appliance in the related technology is solved, and the heating module is in an abnormal heating state to cause potential safety hazards is solved.
Optionally, the detecting whether the heat generating module of the cooking appliance malfunctions includes: detecting a first temperature value at a first time point and a second temperature value at a second time point in a pot of the cooking appliance when the cooking appliance is in a power-on standby state, wherein a preset time length is arranged between the second time point and the first time point; calculating the difference value between the first temperature value and the second temperature value to obtain a temperature difference value; judging whether the temperature difference is larger than a preset temperature difference or not; recording an abnormal temperature difference once under the condition that the temperature difference is larger than a preset temperature difference; and determining whether the heating module breaks down or not according to the abnormal temperature difference. Whether the heating module is abnormal or not is determined according to the temperature difference change inside the cooking appliance by detecting the temperature change in the preset time, and the accuracy of the heating module for detecting the cooking appliance is improved.
Optionally, detecting whether the heating module of the cooking appliance is failed further includes: counting the times of abnormal temperature difference in a preset time period; and if the times exceed the preset temperature difference times, determining that the heating module breaks down. By counting the times of abnormal temperature difference in the preset time period, if the continuous temperature difference exceeds the threshold value for multiple times, the heating module is indicated to be in fault, and the accuracy of detecting the fault of the heating module is improved.
Optionally, detecting whether the heating module of the cooking appliance is failed further includes: detecting whether a current signal or a voltage signal exists at the output end of the relay or not when the cooking appliance is in a power-on standby state; and determining that the heating module has a fault under the condition that the output end of the relay has a current signal or a voltage signal. Whether detection circuitry through detecting be connected with the relay has electric current or current signal to whether have the signal of telecommunication under the definite standby state, thereby confirm whether the relay contact adhesion, and then confirm whether the module that generates heat is trouble, improve the precision that detects from the signal of telecommunication detection angle.
Optionally, sending the prompt message includes: controlling a voice module to send voice alarm information, wherein the voice alarm information is used for informing a user that the cooking appliance is in failure; and/or displaying the fault information through a display module. Through the modes of sending out voice alarm or displaying faults and the like, a user can know that the cooking appliance has faults in time, and the power supply is closed in time, so that the equipment is prevented from catching fire or exploding.
Optionally, after sending the prompt message, the method further includes: receiving a target control instruction, wherein the target control instruction is used for controlling the cooking appliance to execute a target work, and the target work at least comprises the following steps: cutting off the power supply of the cooking utensil. Through the operation of the stop operation cooking utensil, the overheating risk of the cooking utensil is avoided, and the protection force is improved.
According to another aspect of the embodiments of the present invention, there is also provided a control apparatus of a cooking appliance, including: a relay; the heating module is connected with the relay and heats the inner pot of the cooking utensil after the relay is conducted; and the detection module is used for detecting whether the heating module breaks down or not.
Through increasing detection module, whether the module that generates heat that detects cooking utensil is the trouble, also can detect the break-make of relay simultaneously and whether go wrong, and then according to the operation of testing result control cooking utensil, guarantee that cooking utensil's the module that generates heat can keep normal operating.
Optionally, the detection module is one of: temperature sensor, current detection circuit, voltage detection circuit.
Optionally, when the detection module is a temperature detection sensor, detecting an ambient temperature around the heating module by the temperature detection sensor to obtain a temperature value; and the temperature detection sensor transmits the temperature value to the control module so as to confirm whether the heating module breaks down or not through the control module. Detect the inside temperature value of cooking utensil through above-mentioned temperature detection sensor, and then confirm whether the module breaks down according to the difference in temperature change, improved the precision of detecting whether the module breaks down.
Optionally, the cooking appliance further comprises: the communication module is used for transmitting the temperature value to a server, wherein the server sends a target execution instruction according to the temperature value and a preset temperature value; and the execution module is used for executing target work according to the target execution instruction returned by the server. Remote communication is realized through the communication module and the execution module, so that the cooking appliance can receive instructions in time after detection, and the normal operation of the cooking appliance is ensured.
Optionally, the cooking appliance further comprises: and the control module is connected with the detection module and used for controlling the cooking utensil to execute target work according to a detection result obtained by the detection of the detection module.
Optionally, the cooking appliance further comprises: and the prompting module is used for sending out prompting information under the condition that the heating module breaks down, wherein the prompting information is used for prompting a user that the heating module of the cooking appliance breaks down.
Optionally, the current detection circuit is arranged at the output end of the relay and connected with the control module, and the current detection module is used for detecting a current signal at the output end of the relay; or the voltage detection circuit is arranged at the output end of the relay and connected with the control module, and the voltage detection module is used for detecting a voltage signal at the output end of the relay.
Optionally, when the detection module is the current detection circuit, if the cooking appliance is in a power-on standby state, and the current detection module detects a current signal at the output end of the relay, or the voltage detection module detects a voltage signal at the output end of the relay, it is determined that the heating module is faulty.
Optionally, the control device of the cooking appliance further includes: and the voice module is used for sending voice alarm information under the condition of determining the fault of the heating module. The voice module is used for sending out voice information, so that a user can quickly know that the cooking appliance is out of order.
Optionally, the cooking appliance is an electric pressure cooker. The preferred way of cooking appliances is illustrated by an electric pressure cooker.
By applying the technical scheme of the invention, a detection module is added in the cooking appliance to detect whether the heating module breaks down, the state of the heating module is determined through real-time detected information, if the heating module breaks down, prompt information can be sent out, the cooking appliance is controlled to execute target work, the heating module of the cooking appliance is ensured to normally work, and if the heating module breaks down, the prompt module can be controlled to send out voice prompt or display fault information, so that a user can know the state of the cooking appliance in time.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a flowchart of a control method of a cooking appliance according to an embodiment of the present invention;
fig. 2 is a schematic view of another alternative cooking appliance control method according to an embodiment of the present invention;
fig. 3 is a schematic view of a control apparatus of another cooking appliance according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a control module according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an alternative current sensing circuit according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an alternative voltage detection circuit according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In accordance with an embodiment of the present invention, there is provided a method embodiment of control of a cooking appliance, it is noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system, such as a set of computer executable instructions, and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than here.
Fig. 1 is a flowchart of a control method of a cooking appliance according to an embodiment of the present invention, as shown in fig. 1, the method including the steps of:
step S102, detecting whether the heating module of the cooking utensil is in failure.
And step S104, sending out prompt information under the condition that the heating module is detected to be in fault, wherein the prompt information is used for prompting a user that the heating module of the cooking utensil is in fault.
By applying the technical scheme of the invention, whether the heating module of the cooking appliance is in fault is detected, and the prompt message is sent out under the condition that the heating module is detected to be in fault, so that the user is prompted by the prompt message that the heating module of the cooking appliance is in fault. The heating module of the cooking appliance is subjected to fault detection, and is timely processed when the heating module breaks down, the heating module is controlled to normally work, the risk of abnormal work of the heating module of the cooking appliance is reduced, the use experience of a user is improved, the problem that the controller cannot control the disconnection of the relay in the cooking appliance in the related technology is solved, and the heating module is in an abnormal heating state to cause potential safety hazards is solved.
The above steps will be described in detail below.
Step S102, detecting whether the heating module of the cooking utensil is in failure.
Alternatively, the cooking appliance may include, but is not limited to: an electric pressure cooker.
For the heating module in this example, it may indicate a heating plate in the cooking appliance, which may heat the inner pot of the cooking appliance.
The invention can detect whether the heating module of the cooking utensil is in fault in two modes, namely detection by a temperature sensor and detection by a detection circuit. Wherein, to detecting through temperature sensor, this temperature sensor can set up around the module that generates heat of cooking utensil to the temperature that the module that generates heat of real-time detection diverges, optionally, when detecting whether the module that generates heat of cooking utensil breaks down, include: detecting a first temperature value at a first time point and a second temperature value at a second time point in a pot of the cooking appliance when the cooking appliance is in a power-on standby state, wherein a preset time length is arranged between the second time point and the first time point; calculating the difference value between the first temperature value and the second temperature value to obtain a temperature difference value; judging whether the temperature difference is larger than a preset temperature difference or not; recording an abnormal temperature difference once under the condition that the temperature difference is larger than a preset temperature difference; and determining whether the heating module has a fault according to the abnormal temperature difference.
Whether the heating module is abnormal or not is determined according to the temperature difference change inside the cooking appliance by detecting the temperature change in the preset time, and the accuracy of the heating module for detecting the cooking appliance is improved.
In the embodiment of the present invention, specific time points of the first time point and the second time point are not specifically limited, and the first time point and the second time point are separated by a preset time length, that is, a temperature value is detected every preset time length. The second time point may be after the first time point, after the temperature values of the two time points are detected, the temperature difference value may be calculated, and if the temperature difference value exceeds the preset threshold, it is determined that the heating module may malfunction. Optionally, the preset temperature difference in the embodiment of the present invention may be set by itself, and the range of the preset temperature difference may be 10 to 50, for example, the preset temperature difference may be set to 20 degrees celsius.
As another optional example of the present invention, detecting whether a heat generating module of the cooking appliance malfunctions further includes: counting the times of abnormal temperature difference in a preset time period; and if the times exceed the preset temperature difference times, determining that the heating module breaks down. By counting the times of abnormal temperature difference in the preset time period, if the continuous temperature difference exceeds the threshold value for multiple times, the heating module is indicated to be in fault, and the accuracy of detecting the fault of the heating module is improved. Namely, whether the heating module breaks down or not can be determined by detecting the continuous times of abnormal temperature difference, if the abnormal temperature difference occurs for 3 times, the heating module is indicated to break down out of control, and the controller can control the prompt module to prompt the user that the cooking appliance is abnormal.
Another way of detecting whether the heat generating module is faulty or not by an electrical signal is described below.
Optionally, the step S102 further includes: detecting whether a current signal or a voltage signal exists at the output end of the relay or not when the cooking appliance is in a power-on standby state; and determining that the heating module has a fault under the condition that the output end of the relay has a current signal or a voltage signal. Whether detection circuitry through detecting be connected with the relay has electric current or current signal to whether have the signal of telecommunication under the definite standby state, thereby confirm whether the relay contact adhesion, and then confirm whether the module that generates heat is trouble, improve the precision that detects from the signal of telecommunication detection angle.
That is, when the detection module is a hardware detection circuit, the detection circuit can be loaded to the output end of the relay, and the detection circuit can be connected with a port of a controller (such as a single chip microcomputer) to detect the current or voltage signal at the output end of the relay. In the power-on standby state, the relay should be in an off state, if an electric signal is detected at the moment, the contact adhesion of the relay is indicated, and the heating module has an out-of-control fault at the moment, namely the contact adhesion of the relay causes the possible fault of the heating module.
In step S104, when the failure of the heat generating module is detected, a prompt message is issued.
Optionally, sending the prompt message includes: the voice control module is used for controlling the voice alarm information to send out voice alarm information, wherein the voice alarm information is used for informing a user that the cooking appliance is in failure; and/or displaying the fault information through a display module. Through the modes of sending out voice alarm or displaying faults and the like, a user can know that the cooking appliance has faults in time, and the power supply is closed in time, so that the equipment is prevented from catching fire or exploding.
When the heating module is detected to be out of order, the contact of the relay is bonded, or the heating module is out of order, so that the heating module is out of control and fails, and prompt information can be sent out.
The voice alarm information can be the voice broadcast by the voice alarm module, such as sending out' the rice cooker is abnormal when heating! | A ' waiting for voice alarm information. The step of displaying the fault information may be to display the fault information of the heating module by using a display panel or a control panel of the cooking appliance, for example, to display characters of "heating plate fault" or "relay fault", and to display the fault of the heating module by using a fault code.
The present invention will be described with reference to the above-described determination of whether the heat generating module is abnormal by detecting the temperature inside the cooking appliance, the issuance of a prompt, and the like.
Fig. 2 is a schematic view of another alternative control method of a cooking appliance according to an embodiment of the present invention, as shown in fig. 2, the cooking appliance is an electric pressure cooker, and the electric pressure cooker at least includes: a pan and a shell, the method comprising:
in step S201, it is determined that the cooking appliance is in the power on standby state.
Step S202, detecting the environmental temperature in the electric pressure cooker and recording the temperature value.
In step S203, a temperature difference value △ T is calculated every T1, wherein T1 indicates the above preset time period, △ T indicates the temperature difference value between two adjacent time points, and △ T can indicate T1-Tn.
In step S204, it is determined △ T whether it is greater than the preset temperature difference T.
If yes, go to step S205, otherwise, go back to step S202.
And S205, determining that the heating module of the electric pressure cooker is abnormal, sounding a buzzer, and prompting related information by a display screen.
Wherein the buzzer indicates the voice alarm module in the above example. While the display screen may indicate the display panel in the above example, the related information may include, but is not limited to: heating module fault information, power supply information, etc.
Through the steps, when the abnormal environment temperature in the pot of the cooking appliance is detected, the abnormal heating module is determined, and then the alarm prompt and the display screen prompt are carried out, so that a user can know the abnormal heating module of the cooking appliance in time, and the cooking appliance is controlled to execute subsequent operation.
As another optional example of the present invention, after issuing the prompt message, the method further includes: receiving a target control instruction, wherein the target control instruction is used for controlling the cooking appliance to execute target work, and the target work at least comprises the following steps: cutting off the power supply of the cooking utensil.
Namely, in the embodiment of the invention, the power supply of the cooking appliance can be cut off when the heating module is out of control or has failed, so that the cooking appliance is ensured not to have overheating risk, and the protection strength is improved.
By the control method, when the heating module of the cooking appliance is detected to have an out-of-control fault or a fault is sent, prompt information is sent, so that a user can timely cut off a power supply after knowing the fault state of the cooking appliance, and dangers such as fire of the cooking appliance are prevented.
In the following description, a control device for implementing the method for controlling a cooking appliance will be described, and the cooking appliance in the following embodiments detects the state of the heat generating module by adding detection, and then controls the operation of the cooking appliance.
Fig. 3 is a schematic view of another control device of a cooking appliance according to an embodiment of the present invention, as shown in fig. 3, the control device including: a relay 31, a heat generating module 33, and a detecting module 35, wherein,
and the heating module 33 is connected with the relay, and heats the inner pot of the cooking utensil after the relay is switched on. Alternatively, the heating film may be a heating plate of the cooking appliance, and may also be understood as a heating unit.
And the detection module 35 is used for detecting whether the heating module has a fault.
Above-mentioned cooking utensil, through increasing detection module, whether the module of generating heat of detection cooking utensil is trouble, also can detect whether the break-make of relay goes wrong simultaneously, and then control cooking utensil's operation according to the testing result, the module of generating heat of guaranteeing cooking utensil can keep normal operating, reduce cooking utensil's the module of generating heat risk of unusual work, user's use experience has been improved, thereby solve the disconnection of the unable control relay of cooking utensil among the correlation technique, the module of generating heat is in the abnormal heating state, cause the technical problem of potential safety hazard.
Optionally, the cooking appliance is an electric pressure cooker. The preferred way of cooking appliances is illustrated by an electric pressure cooker.
As an optional example of the present invention, the detection module is one of the following: temperature sensor, current detection circuit, voltage detection circuit. In the embodiment of the invention, whether the heating module has a fault or not can be judged by respectively detecting the temperature in the pot through the temperature sensor, and the heating module can be determined to have an out-of-control fault through detecting the electric signal.
Optionally, when the detection module is a temperature detection sensor, detecting the ambient temperature around the heating module by the temperature detection sensor to obtain a temperature value; the temperature detection sensor transmits the temperature value to the control module so as to confirm whether the heating module breaks down or not through the control module.
As an alternative example of the present invention, the cooking appliance further includes: and the control module is connected with the detection module and used for controlling the cooking utensil to execute target work according to a detection result obtained by the detection of the detection module.
Fig. 4 is a schematic diagram of a control module according to an embodiment of the present invention, as shown in fig. 4, a relay 31 and a heating module 33 inside a cooking appliance are connected to a control module 41, and a detection module 35 is disposed between the relay 31, the heating module 33 and the control module 41 to detect whether the heating module is faulty or not, and send information detected in real time to the control module, so as to send a prompt message through a prompt module 43 when the fault occurs.
Set up temperature detection sensor on cooking utensil, under normal conditions, when cooking utensil was in the standby, the relay was because of being in the off-state, and cooking utensil can not heat, and the temperature value that temperature sensor detected is lower or relatively stable. And under the power-on standby state, the controller controls a heating switch of the cooking appliance to be in a disconnected state, at the moment, the heating module (such as a heating plate) is not heated, the controller controls the temperature detection sensor to start working, the detected temperature in the pan is transmitted to the controller through the temperature detection sensor, the controller records a temperature value, a temperature difference value is calculated once in each preset time length, and if the temperature difference value continuously exceeds a preset temperature threshold value for multiple times (more than 2 times), the out-of-control fault of the heating module can be judged to occur (the range of the preset temperature threshold value can be 10-50).
The control module in the embodiment of the invention can be arranged in a cooking appliance and can also be arranged outside the cooking appliance, for example, the control module can be a server connected with the cooking appliance through a remote network, after the environmental temperature value in the cooking appliance is detected, the temperature value can be sent to the control module through the pre-established network connection, the control module can calculate the temperature difference value in real time to determine whether the heating module is abnormal, and when the abnormal temperature occurs, a target working instruction is sent in time to cut off the power supply of the cooking appliance and/or send voice alarm information.
As another alternative example of the present invention, the cooking appliance further includes: the communication module is used for transmitting the temperature value to the server, wherein the server sends a target execution instruction according to the temperature value and a preset temperature value; and the execution module is used for executing target work according to the target execution instruction returned by the server. Remote communication is realized through the communication module and the execution module, so that the cooking appliance can receive instructions in time after detection, and the normal operation of the cooking appliance is ensured.
The communication module is used for communicating with a remote server, and the execution module is used for executing corresponding control instructions.
As another optional embodiment of the present invention, the current detection circuit is disposed at the output end of the relay and connected to the control module, and the current detection module is configured to detect a current signal at the output end of the relay; or the voltage detection circuit is arranged at the output end of the relay and connected with the control module, and the voltage detection module is used for detecting a voltage signal at the output end of the relay.
Optionally, when the detection module is a current detection circuit, if the cooking appliance is in a power-on standby state, and the current detection module detects a current signal at the output end of the relay, or the voltage detection module detects a voltage signal at the output end of the relay, it is determined that the heating module is faulty.
The invention designs a current detection circuit and a voltage detection circuit respectively aiming at an electric signal, fig. 5 is a schematic diagram of an optional current detection circuit according to an embodiment of the invention, as shown IN fig. 5, N indicates a zero line, L indicates a live line, Heat indicates a heating module, K102 indicates a Relay, one end of the Relay is connected with a power supply, the other end of the Relay is connected with a control end, D105 indicates a diode (IN4007) to avoid circuit damage caused by excessive reverse current, Q101 is a triode (S8050), Relay is connected with a controller, and R1 and R2 are protection resistors to prevent the circuit damage caused by excessive current; in the conventional arrangement in fig. 5, the current detection circuit at the lower left corner is added, including the protection resistors of R3 and R4 to protect the circuit, R3 and R4 implement voltage division processing, and D1 is a diode, and the I-AD outputs the detected current signal to the detection module to implement detection of the current signal. Fig. 6 is a schematic diagram of another alternative voltage detection circuit according to an embodiment of the invention, as shown in fig. 6, in addition to the above, the Heat generating module Heat, the relay K102, and the diode D105, the transistor Q101, the protection resistors R1 and R2 further include a voltage detection circuit at the lower left corner, which may include a diode D1 and protection resistors R3, R4, and R5, and also include a module ECT for filtering the voltage, and after detecting the voltage signal, the V-AD may output the voltage signal to the protection detection module.
The current detection circuit and the voltage detection circuit are hardware detection circuits and can be added at the output end of the relay to detect current and voltage signals at the output end of the relay. When the controller detects an electric signal in standby, the controller judges that the relay contact is bonded, the heating device has an out-of-control fault, and the control system controls the prompting device to prompt the user of abnormity.
As another optional example of the embodiment of the present invention, the cooking appliance further includes: and the prompting module is used for sending out prompting information under the condition that the heating module has a fault, wherein the prompting information is used for prompting the user that the heating module of the cooking appliance has the fault. Namely, the fault of the heating module in the cooking utensil or the possibility of the fault of the heating module can be prompted through the prompting module.
Optionally, the control device of the cooking appliance further includes: and the voice module is used for sending voice alarm information under the condition of determining the fault of the heating module. The voice module is used for sending out voice information, so that a user can quickly know that the cooking appliance is out of order.
The voice module may include, but is not limited to: buzzer, pronunciation broadcaster. The cooking appliance is enabled to be capable of rapidly knowing that the cooking appliance is abnormal by making a sound through the buzzer and the like, and fault codes can be displayed through the display panel and the like, so that the user can find the abnormality of the equipment in time, take power-off measures to cut off the power supply of the equipment, and prevent the equipment from catching fire or exploding and the like.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (16)
1. A method of controlling a cooking appliance, comprising:
detecting whether a heating module of the cooking appliance is in failure;
and sending prompt information under the condition that the heating module is detected to be in fault, wherein the prompt information is used for prompting a user that the heating module of the cooking appliance is in fault.
2. The control method according to claim 1, wherein detecting whether the heat generating module of the cooking appliance malfunctions comprises:
detecting a first temperature value at a first time point and a second temperature value at a second time point in a pot of the cooking appliance when the cooking appliance is in a power-on standby state, wherein a preset time length is arranged between the second time point and the first time point;
calculating the difference value between the first temperature value and the second temperature value to obtain a temperature difference value;
judging whether the temperature difference is larger than a preset temperature difference or not;
recording an abnormal temperature difference once under the condition that the temperature difference is larger than a preset temperature difference;
and determining whether the heating module breaks down or not according to the abnormal temperature difference.
3. The control method according to claim 2, wherein detecting whether the heat generating module of the cooking appliance malfunctions further comprises:
counting the times of abnormal temperature difference in a preset time period;
and if the times exceed the preset temperature difference times, determining that the heating module breaks down.
4. The control method according to claim 1, wherein detecting whether the heat generating module of the cooking appliance malfunctions further comprises:
detecting whether a current signal or a voltage signal exists at the output end of the relay or not when the cooking appliance is in a power-on standby state;
and determining that the heating module has a fault under the condition that the output end of the relay has a current signal or a voltage signal.
5. The control method of claim 1, wherein sending the prompt message comprises:
controlling a voice module to send voice alarm information, wherein the voice alarm information is used for informing a user that the cooking appliance is in failure; and/or
And displaying the fault information through the display module.
6. The control method according to claim 1, wherein after issuing the prompt message, the method further comprises:
receiving a target control instruction, wherein the target control instruction is used for controlling the cooking appliance to execute a target work, and the target work at least comprises the following steps: cutting off the power supply of the cooking utensil.
7. A control device for a cooking appliance, comprising:
a relay;
the heating module is connected with the relay and heats the inner pot of the cooking utensil after the relay is conducted;
and the detection module is used for detecting whether the heating module breaks down or not.
8. The control device of claim 7, wherein the detection module is one of: temperature sensor, current detection circuit, voltage detection circuit.
9. The control device according to claim 8, wherein when the detection module is a temperature detection sensor, the temperature detection sensor detects an ambient temperature around the heating module to obtain a temperature value; and the temperature detection sensor transmits the temperature value to the control module so as to confirm whether the heating module breaks down or not through the control module.
10. The control device of claim 9, wherein the cooking appliance further comprises:
the communication module is used for transmitting the temperature value to a server, wherein the server sends a target execution instruction according to the temperature value and a preset temperature value;
and the execution module is used for executing target work according to the target execution instruction returned by the server.
11. The control device of claim 7, wherein the cooking appliance further comprises:
and the control module is connected with the detection module and used for controlling the cooking utensil to execute target work according to a detection result obtained by the detection of the detection module.
12. The control device of claim 7, wherein the cooking appliance further comprises:
and the prompting module is used for sending out prompting information under the condition that the heating module breaks down, wherein the prompting information is used for prompting a user that the heating module of the cooking appliance breaks down.
13. The control device according to claim 8,
the current detection circuit is arranged at the output end of the relay and is connected with the control module, and the current detection module is used for detecting a current signal at the output end of the relay; or
The voltage detection circuit is arranged at the output end of the relay and connected with the control module, and the voltage detection module is used for detecting a voltage signal at the output end of the relay.
14. The control device according to claim 13, wherein when the detection module is the current detection circuit, if the cooking appliance is in a power-on standby state and the current detection module detects a current signal at the output terminal of the relay, or the voltage detection module detects a voltage signal at the output terminal of the relay, it is determined that a heating module is faulty.
15. The control device according to claim 7, characterized by further comprising:
and the voice module is used for sending voice alarm information under the condition of determining the fault of the heating module.
16. The control device of any one of claims 7 to 15, wherein the cooking appliance is an electric pressure cooker.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811116007.4A CN110934485A (en) | 2018-09-25 | 2018-09-25 | Control method and device of cooking appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811116007.4A CN110934485A (en) | 2018-09-25 | 2018-09-25 | Control method and device of cooking appliance |
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| CN110934485A true CN110934485A (en) | 2020-03-31 |
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| CN201811116007.4A Pending CN110934485A (en) | 2018-09-25 | 2018-09-25 | Control method and device of cooking appliance |
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