CN112137386B - Control method of cooker - Google Patents
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- CN112137386B CN112137386B CN201910565556.8A CN201910565556A CN112137386B CN 112137386 B CN112137386 B CN 112137386B CN 201910565556 A CN201910565556 A CN 201910565556A CN 112137386 B CN112137386 B CN 112137386B
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- 230000006854 communication Effects 0.000 claims abstract description 224
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- 238000010411 cooking Methods 0.000 claims abstract description 52
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- 238000010438 heat treatment Methods 0.000 claims abstract description 26
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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
- A47J27/004—Cooking-vessels with integral electrical heating means
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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
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/06—Lids or covers for cooking-vessels
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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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
- A47J2201/00—Devices having a modular construction
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- Automation & Control Theory (AREA)
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Abstract
The embodiment of the invention discloses a control method of a cooker, which comprises a cooker cover assembly and a cooker body assembly; the pan body assembly comprises a main control unit, a second wireless communication module and a heating device; the pot cover assembly comprises a motor, a motor control unit, a first wireless communication module and a stirring rod connected with the motor; the method comprises the following steps: the main control unit sends the working information to the second wireless communication module, the second wireless communication module wirelessly transmits the working information and the working power to the first wireless communication module, and the first wireless communication module controls the stirring rod to output stirring actions according to the working information; the first wireless communication module collects the execution state information of the motor and wirelessly transmits the execution state information to the second wireless communication module, and the main control unit outputs a control instruction according to the execution state information transmitted back by the second wireless communication module. Through this embodiment scheme for can separate between pot body subassembly and the pot cover subassembly, be convenient for the washing of machine of cooking, be difficult for causing and wash the dead angle.
Description
Technical Field
The embodiment of the invention relates to a cooking equipment control technology, in particular to a control method of a dish frying machine.
Background
At present, the pan cover structure of the cooker is mainly connected with the pan body through a rotating shaft structure. Carry out power and communication transmission through the pencil on the connecting axle, the shortcoming of this scheme is that pot cover and the pot body can not dismantle the separation, causes the trouble to the washing of pot cover, and integrated top of a kitchen range face requires succinctly well to arrange in addition, and motor drive structure causes easily and washs the dead angle.
Disclosure of Invention
The embodiment of the invention provides a control method of a cooking machine, which can separate a pot body assembly and a pot cover assembly from each other and is convenient for cleaning the cooking machine.
To achieve the object of the embodiments of the present invention, the embodiments of the present invention provide a control method of a cooker, which may include: a pot cover component and a pot body component;
the pan body assembly may include: the heating device comprises a main control unit, a second wireless communication module and a heating device, wherein the second wireless communication module is electrically connected with the main control unit;
the pot cover assembly may include: the stirring rod is connected with the power output end of the motor;
the method may include: the main control unit sends working information to the second wireless communication module, the second wireless communication module wirelessly transmits the working information and working power to the first wireless communication module, and the first wireless communication module controls the stirring rod to output stirring actions according to the working information;
the first wireless communication module collects the execution state information of the motor and wirelessly transmits the execution state information to the second wireless communication module, and the main control unit outputs a control instruction according to the received execution state information transmitted back by the second wireless communication module.
In an exemplary embodiment of the present invention, the wireless transmission of the operating power by the second wireless communication module to the first wireless communication module may include: after the cooker is powered on and/or the cooker is in a cooking state, the second wireless communication module sends energy to the first wireless communication module at a preset frequency and a preset duty ratio, and detects the self emission current of the second wireless communication module and the return receiving voltage of the first wireless communication module; and judging whether the installation of the pot cover assembly is normal, whether the matching of the first wireless communication module and the second wireless communication module is normal and/or whether the load matching is normal according to the magnitude of the transmitting current and/or the receiving voltage.
In an exemplary embodiment of the present invention, the determining whether the pan cover assembly is normally installed, the first wireless communication module is normally matched with the second wireless communication module, and/or the load is normally matched according to the magnitude of the transmission current and/or the received voltage may include:
comparing the emission current with a preset current threshold value, and comparing the receiving voltage with a set voltage value;
when the emission current is greater than or equal to the current threshold value, determining that the pot cover assembly is not placed in place; and when the emission current is detected to be larger than or equal to the current threshold value continuously for multiple times, determining that the pot cover assembly is not placed on the pot body assembly; when the emission current is smaller than the current threshold value, judging that the pot cover assembly is placed in place;
when the received voltage is not equal to the set voltage value, determining that the first wireless communication module and the second wireless communication module are in matching failure; when the receiving voltage is equal to the set voltage value, judging that the first wireless communication module and the second wireless communication module are matched normally;
when the transmitting current is smaller than the current threshold value and the receiving voltage is not equal to the set voltage value, judging that the load matching is abnormal; and when the transmitting current is smaller than the current threshold value and the receiving voltage is equal to the set voltage value, judging that the load matching is normal.
In an exemplary embodiment of the present invention, the method may further include: and when the cooker is in a cooking state, judging the size of the load according to the size relation between the received voltage and the set voltage value, and correspondingly carrying out load matching correction.
In an exemplary embodiment of the present invention, the determining a load size according to a size relationship between the received voltage and the set voltage value, and performing the load matching correction accordingly may include:
when the receiving voltage is smaller than the set voltage value, judging that the load is too large, increasing the preset duty ratio, and when the preset duty ratio is adjusted to 100%, if the receiving voltage is still smaller than the set voltage value, increasing the preset frequency;
and if the receiving voltage is still smaller than the set voltage value after the preset frequency is continuously increased for multiple times, judging that the first wireless communication module and the second wireless communication module are abnormally matched.
In an exemplary embodiment of the present invention, the determining a load size according to a size relationship between the received voltage and the set voltage value, and performing load matching correction accordingly may further include:
when the receiving voltage is larger than the set voltage value, judging that the load is too small, reducing the preset duty ratio, and when the preset duty ratio is adjusted to be lower than 10%, reducing the preset frequency if the receiving voltage is still larger than the set voltage value;
and if the receiving voltage is still larger than the set voltage value after the preset frequency is continuously reduced for multiple times, judging that the first wireless communication module and the second wireless communication module are abnormally matched.
In an exemplary embodiment of the present invention, the collecting of the execution state information of the motor by the first wireless communication module may include: operating speed and/or operating current;
the main control unit outputs a control instruction according to the received execution state information transmitted back by the second wireless communication module, and the control instruction comprises: and judging whether the motor works normally, controlling the heating device to stop heating when judging that the motor works abnormally, and controlling the second wireless communication module to stop wirelessly transmitting the working power.
In an exemplary embodiment of the present invention, the collecting of the execution state information of the motor by the first wireless communication module may further include: positive and negative rotation information of the motor;
the outputting, by the main control unit according to the received execution state information returned by the second wireless communication module, a control instruction may include: and judging whether the stirring rod is blocked according to the working current, controlling the motor to rotate reversely when the stirring rod is blocked, detecting the working current after the motor rotates forwards again, and controlling the second wireless communication module to stop wirelessly transmitting the working power when the working current is still abnormal.
In an exemplary embodiment of the present invention, the pot lid assembly may further include: the stirring rod detection unit, a magnetic element arranged on the stirring rod and a reed switch arranged on the pot cover assembly except the stirring rod;
the method may further comprise: detecting an action signal of the reed switch through the stirring rod detection unit, and sending the action signal to the first wireless communication module;
the first wireless communication module sends the action signal to the second wireless communication module in a wireless communication mode, and sends the action signal to the main control unit through the second wireless communication module;
the main control unit judges whether the stirring rod is installed or not according to the action signal; when the action signal is an opening signal, judging that the stirring rod is not installed; and when the action signal is a closing signal, judging that the stirring rod is installed.
In an exemplary embodiment of the present invention, the cooker may further include a human-computer interaction module; the human-computer interaction module is electrically connected with the first wireless communication module; the method may further comprise:
collecting a control instruction through the man-machine interaction module, and transmitting the control instruction to the first wireless communication module; the first wireless communication module sends the control instruction to the second wireless communication module in a wireless communication mode; the control instruction is sent to the main control unit through the second wireless communication module;
and the main control unit controls the motor and the heating device according to the control instruction so as to finish the cooking operation.
The beneficial effects of the embodiment of the invention can include:
1. the cooker of the embodiment of the present invention may include: a pot cover component and a pot body component; the pan body assembly may include: the heating device comprises a main control unit, a second wireless communication module and a heating device, wherein the second wireless communication module is electrically connected with the main control unit; the pot cover assembly may include: the stirring rod is connected with the power output end of the motor; the method may include: the main control unit sends the working information to the second wireless communication module, the second wireless communication module wirelessly transmits the working information and the working power to the first wireless communication module, and the first wireless communication module controls the stirring rod to output stirring actions according to the working information; the first wireless communication module collects the execution state information of the motor and wirelessly transmits the execution state information to the second wireless communication module, and the main control unit outputs a control instruction according to the received execution state information transmitted back by the second wireless communication module. Through this embodiment scheme, set up wireless communication module on pot body subassembly magazine pot lid subassembly respectively to carry out information transmission through wireless communication module, thereby make and can separate between pot body subassembly and the pot lid subassembly, the washing of the machine of cooking of being convenient for is difficult for causing and washs the dead angle.
2. The wireless transmission of the operating power to the first wireless communication module by the second wireless communication module according to the embodiment of the present invention may include: after the cooker is powered on and/or the cooker is in a cooking state, the second wireless communication module sends energy to the first wireless communication module at a preset frequency and a preset duty ratio, and detects the self emission current of the second wireless communication module and the return receiving voltage of the first wireless communication module; and judging whether the installation of the pot cover assembly is normal, whether the matching of the first wireless communication module and the second wireless communication module is normal and/or whether the load matching is normal according to the magnitude of the transmitting current and/or the receiving voltage. The principle of the embodiment scheme is simple, the implementation is easy, the hardware condition, the working condition and the signal transmission condition of the cooking machine can be comprehensively judged, the normal operation of the cooking machine is ensured, the problems can be timely found, and the performance and the intelligence of the cooking machine are improved.
3. The determining whether the installation of the pot cover assembly is normal, whether the matching between the first wireless communication module and the second wireless communication module is normal and/or whether the load matching is normal according to the magnitude of the transmitting current and/or the receiving voltage according to the embodiment of the invention may include: comparing the emission current with a preset current threshold value, and comparing the receiving voltage with a set voltage value; when the emission current is greater than or equal to the current threshold value, determining that the pot cover assembly is not placed in place; and when the emission current is detected to be larger than or equal to the current threshold value continuously for multiple times, determining that the pot cover assembly is not placed on the pot body assembly; when the emission current is smaller than the current threshold value, judging that the pot cover assembly is placed in place; when the received voltage is not equal to the set voltage value, determining that the first wireless communication module and the second wireless communication module are in matching failure; when the receiving voltage is equal to the set voltage value, judging that the first wireless communication module and the second wireless communication module are matched normally; when the transmitting current is smaller than the current threshold value and the receiving voltage is not equal to the set voltage value, judging that the load matching is abnormal; and when the transmitting current is smaller than the current threshold value and the receiving voltage is equal to the set voltage value, judging that the load matching is normal. According to the scheme of the embodiment, the collected emission current and the collected feedback voltage are judged through the current threshold value and the set voltage value, whether the frying machine is normal or not is determined, the scheme is simple, effective and reliable, and the technical basis is improved for normal operation of the separable frying machine.
4. The method of the embodiment of the present invention may further include: and when the cooker is in a cooking state, judging the size of the load according to the size relation between the received voltage and the set voltage value, and correspondingly carrying out load matching correction. Through the scheme of the embodiment, the influence on the running stability of the system due to overlarge or undersize load can be reduced, and the normal running of the cooking machine is guaranteed.
5. The acquiring, by the first wireless communication module, the execution state information of the motor according to the embodiment of the present invention may include: operating speed and/or operating current; the main control unit outputs a control instruction according to the received execution state information transmitted back by the second wireless communication module, and the control instruction comprises: and judging whether the motor works normally, controlling the heating device to stop heating when judging that the motor works abnormally, and controlling the second wireless communication module to stop wirelessly transmitting the working power. According to the scheme of the embodiment, the real-time monitoring of the working state of the motor is realized through the wireless communication module, the normal operation of the motor is ensured, and the working performance of the cooking machine is ensured.
6. The pot lid assembly of the embodiment of the present invention may further include: the stirring rod detection unit, a magnetic element arranged on the stirring rod and a reed switch arranged on the pot cover assembly except the stirring rod; the method may further comprise: detecting an action signal of the reed switch through the stirring rod detection unit, and sending the action signal to the first wireless communication module; the first wireless communication module sends the action signal to the second wireless communication module in a wireless communication mode, and sends the action signal to the main control unit through the second wireless communication module; the main control unit judges whether the stirring rod is installed or not according to the action signal; when the action signal is an opening signal, judging that the stirring rod is not installed; and when the action signal is a closing signal, judging that the stirring rod is installed. Through the scheme of the embodiment, whether the pot cover assembly is installed in place or not is effectively detected, and the cooking fault caused by the fact that the pot cover assembly is not placed or not placed due to negligence of the separable cooking machine is avoided.
Additional features and advantages of embodiments of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the embodiments of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the examples of the application do not constitute a limitation of the embodiments of the invention.
FIG. 1 is an exploded view of a cooker according to an embodiment of the present invention;
FIG. 2 is a flow chart of a control method of the cooker according to the embodiment of the invention;
FIG. 3 is a schematic diagram of a control method of the cooker according to the embodiment of the invention;
FIG. 4 is a schematic diagram of a method for detecting a fault of a cooker according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a load matching method according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an integrated cooker control system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
Example one
An embodiment of the present invention provides a method for controlling a cooker, and as shown in fig. 1, the cooker may include: a pot cover component 1 and a pot body component 2;
the pan body assembly 2 may comprise: the wireless communication system comprises a main control unit 21, a second wireless communication module 22 and a heating device 23, wherein the second wireless communication module 22 and the heating device 23 are electrically connected with the main control unit 21;
the pot cover assembly 1 may include: the stirring device comprises a motor 11, a motor control unit 13, a first wireless communication module 12 in wireless communication with the second wireless communication module 12, and a stirring rod 14 connected with a power output end of the motor 11;
as shown in fig. 2, the method may include S101-S102:
s101, the main control unit 21 sends working information to the second wireless communication module 22, the second wireless communication module 22 wirelessly transmits the working information and working power to the first wireless communication module 12, and the first wireless communication module 12 controls the stirring rod 14 to output stirring actions according to the working information;
s102, the first wireless communication module 12 collects the execution state information of the motor, and wirelessly transmits the execution state information to the second wireless communication module 22, and the main control unit 21 outputs a control command according to the received execution state information transmitted by the second wireless communication module 22.
In an exemplary embodiment of the present invention, the wireless power supply module may include two parts, namely, a first wireless communication module 12 (which may be used as a receiving module) and a second wireless communication module 22 (which may be used as a transmitting block), which may be connected in a limited manner by the structural positioning of the lid assembly 1 and the pan assembly 2, the distance between the transmitting coil of the transmitting module and the receiving coil of the receiving module may be 5-10mm, which may include the structural wall thickness and the air gap, the design considers the transmission efficiency and the transmission power of the wireless communication module, and the transmitting coil and the receiving coil of the same size, and the transmission power and the efficiency may decrease with the increase of the distance; conversely, if certain transmission efficiency and power are satisfied, the closer the spacing, the smaller the size of the transmitter coil and the receiver coil can be made.
In an exemplary embodiment of the present invention, the transmitting module may be installed on the sidewall of the decorative collar 24 in the pot body assembly 2, and the receiving module may be installed on the sidewall of the pot cover assembly 1, both of which may be installed in parallel, and the purpose of this design is to ensure that the magnetic field directions of the transmitting coil and the receiving coil are perpendicular to the magnetic field direction of the electromagnetic heating wire coil in the heating device 23, so as to effectively reduce electromagnetic interference. In addition, the first wireless communication module 12 and the second wireless communication module 22 can be installed in a limited manner on the pot cover assembly 1 and the pot body assembly 2, so that the influence of vibration generated by stirring of the stirring rod on wireless transmission stability is effectively reduced.
In the exemplary embodiment of the present invention, the communication principle between the first wireless communication module 12 and the second wireless communication module 22 is mainly that energy is transmitted by means of two coils in a magnetic induction coupling manner, and a transmitting coil generates a switching current with a certain frequency, so that an induced current is formed on a receiving coil; the transmitting module transmits the communication signal in a carrier mode through the modulation circuit, and the receiving module demodulates the signal through the demodulation circuit, so that data communication between the two wireless communication modules is realized, and the scheme has the advantages of ensuring the matching between the transmitting coil and the receiving coil, such as: handshake authentication, data modulation and demodulation modes, voltage stabilization feedback and the like.
In an exemplary embodiment of the present invention, the first wireless communication module 12 may send the operation information to the motor control unit 13, and the motor control unit 13 may control the motor according to the operation information, for example, the operation information may include forward and reverse rotation of the motor, rotation speed adjustment, and operation current detection and control, so as to drive the stirring rod 14 to perform a corresponding stirring action.
In an exemplary embodiment of the present invention, when the agitation lever is locked so that the motor current exceeds the threshold value, the motor control unit 13 may control the motor to execute the locked-rotation restoration control routine.
In an exemplary embodiment of the present invention, the cooking machine may further include a human-computer interaction module 3; the human-computer interaction module 3 can be electrically connected with the first wireless communication module 12; the method may further comprise:
collecting a control instruction through the human-computer interaction module 3, and transmitting the control instruction to the first wireless communication module 12;
the first wireless communication module 12 sends the control instruction to the second wireless communication module 22 through a wireless communication mode; and sends the control instruction to the main control unit 21 through the second wireless communication module 22;
the main control unit 21 controls the motor and the heating device according to the control instruction so as to complete the cooking operation.
In an exemplary embodiment of the present invention, the human-computer interaction module 3 may be a touch liquid crystal display module; can set up in pot cover subassembly pot cover handle 15 top, supply power and carry out communication connection with receiving module through receiving module, touch liquid crystal display module's display surface can protect through cover glass, transparent plastic panel, and the user can carry out menu selection, function operation, time progress inquiry etc. to the cooking machine through operating panel.
In an exemplary embodiment of the present invention, the display screen operation panel may implement display of a cooking menu, display of cooking data and progress, display of a malfunction alarm, operation of a key by a user, and the like, and the user may simply operate the interface with one hand. An atmosphere lamp control circuit can be arranged on the human-computer interaction module 3 and can be designed into an RGB (red, green and blue) tricolor combined light circuit to realize the display of light with different colors, and the brightness is adjusted and changed by Pulse Width Modulation (PWM) driving, so that the working state of the cooker is more visual and the technological sense of the whole cooker is improved.
In an exemplary embodiment of the present invention, as shown in fig. 3, the control scheme of the cooker may be that the cooker is operated by touching a liquid crystal display module (or called touch liquid crystal module), and a user selects a corresponding menu function and starts the cooker after confirming an operation parameter; the touch liquid crystal display module sends a menu operation instruction (i.e. a control instruction) to the receiving module 12, and then data transmission is performed through carrier modulation and demodulation between the wireless communication modules, and the receiving module 12 sends the menu operation instruction to the transmitting module 22.
In the exemplary embodiment of the present invention, the transmitting module 22 receives the instruction and then sends the data to the main control unit 21 of the cooker, and the main control unit 21 serves as a control center of the cooker, and calculates the received menu operation instruction to obtain corresponding control data, including but not limited to electromagnetic heating power, cooking temperature, motor operation speed, motor operation duration, total cooking duration, and the like. The heating power and temperature detection can be sent to a heating device 23 (an electromagnetic heating plate), the motor operation parameters and the cooking time can be sent to the receiving module 12 again through the transmitting module 22, the receiving module 12 controls the motor 11 to start operation according to the parameters, execution state information such as the total cooking time and the like is returned to the touch liquid crystal display module, the closed-loop data communication loop is used as a basic control link of the cooking machine, and the data communication process is repeated in the whole working cycle of the cooking machine, so that the correct execution of the menu cooking is ensured.
In an exemplary embodiment of the present invention, the information of the execution state of the motor 11 collected by the first wireless communication module 12 may include: operating speed and/or operating current;
the outputting, by the main control unit 21, the control instruction according to the received execution state information returned by the second wireless communication module 22 includes: and judging whether the motor works normally, controlling the heating device 23 to stop heating when judging that the motor works abnormally, and controlling the second wireless communication module 22 to stop wirelessly transmitting the working power.
In an exemplary embodiment of the present invention, the collecting of the execution state information of the motor 11 by the first wireless communication module 12 may further include: positive and negative rotation information of the motor;
the outputting, by the main control unit 21, the control instruction according to the received execution state information returned by the second wireless communication module 22 may include: and judging whether the stirring rod 14 is locked according to the working current, controlling the motor 11 to rotate in the reverse direction when the stirring rod 14 is locked, detecting the working current after the motor 11 rotates in the forward direction again, and controlling the second wireless communication module 22 to stop wirelessly transmitting the working power when the working current is still abnormal.
In the exemplary embodiment of the present invention, in the operation process of the cooking machine, the main control unit 21 monitors the normal operation of each module, if there is a fault alarm message, the message is sent to the touch liquid crystal module and an alarm prompt is displayed, otherwise, the cooking machine operates according to the function until the menu cooking is finished or the user stops the function operation.
Example two
The embodiment provides an embodiment scheme for performing fault judgment through the working data of the first wireless communication module 12 and the second wireless communication module 22 on the basis of the first embodiment.
In an exemplary embodiment of the present invention, the second wireless communication module 22 wirelessly transmitting the operating power to the first wireless communication module 12 may include: after the cooker is powered on and/or when the cooker is in a cooking state, the second wireless communication module 22 sends energy to the first wireless communication module 12 at a preset frequency and a preset duty cycle, and detects the transmission current of the second wireless communication module 22 and the receiving voltage returned by the first wireless communication module 12; and judging whether the pot cover assembly 1 is normally installed, whether the first wireless communication module 12 is normally matched with the second wireless communication module 22 and/or whether the load is normally matched according to the transmitting current and/or the receiving voltage.
In an exemplary embodiment of the present invention, as shown in fig. 4, the wireless communication module detection and load matching (e.g., power matching) functions mainly include detection of the lid assembly 1 during power-up and cooking and load matching during cooking. Wherein the detection of pot cover subassembly 1 mainly accomplishes pot cover subassembly 1 and installs detection, communication handshake and integrated kitchen data initialization in place, judges whether emission module 22 and receiving module 12's work is normal through detecting transmitting circuit current value and receiving voltage value, and when emission coil and receiving coil had following anomaly, power output will go wrong: the coil position is deviated up, down, left and right, the front and back distance of the coil position is increased, the coil magnetic loop interference is caused, and the like.
In the exemplary embodiment of the present invention, when the above failure occurs in the transmitting coil and the receiving coil, inductance values of the transmitting coil and the receiving coil will change, thereby affecting the resonant frequency, and since the switching frequency of the transmitting coil must be greater than the resonant frequency f 1/(2 pi (LC)1/2), when L changes, f will also change, thereby affecting the efficiency of wireless communication and output voltage fluctuation.
In the exemplary embodiment of the present invention, the lid assembly 1 has vibration and relative displacement caused by load change during cooking, so that the transmitting coil and the receiving coil need to be adjusted in real time on load matching, and the stability of the output voltage is ensured.
In an exemplary embodiment of the present invention, the determining whether the pan cover assembly is normally installed, the first wireless communication module 12 is normally matched with the second wireless communication module 22, and/or the load is normally matched according to the magnitude of the transmitting current and/or the receiving voltage may include:
comparing the emission current with a preset current threshold value, and comparing the receiving voltage with a set voltage value;
when the emission current is greater than or equal to the current threshold value, judging that the pot cover assembly 1 is not placed in place; when the emission current is detected to be larger than or equal to the current threshold value continuously for multiple times, the pot cover assembly 1 is judged not to be placed on the pot body assembly; when the emission current is smaller than the current threshold value, judging that the pot cover assembly 1 is placed in place;
when the received voltage is not equal to the set voltage value, determining that the first wireless communication module 12 and the second wireless communication module 22 are in fault matching; when the received voltage is equal to the set voltage value, determining that the first wireless communication module 12 and the second wireless communication module 22 are matched normally;
when the transmitting current is smaller than the current threshold value and the receiving voltage is not equal to the set voltage value, judging that the load matching is abnormal; and when the transmitting current is smaller than the current threshold value and the receiving voltage is equal to the set voltage value, judging that the load matching is normal.
In an exemplary embodiment of the present invention, after the cooker is powered on, the detection of the lid assembly 1 may be performed, the cooker has no cooking load during the power-on phase, the transmitter module 22 of the cooker transmits energy to the receiving coil at a fixed switching frequency fo and a fixed duty ratio Do (since the lid assembly 1 has no load during the power-on phase, the system may fix the transmission parameters); the transmitting coil detects the transmitting current and the voltage value returned by the receiving coil, if the pot cover assembly 1 is not installed in place (the coil is not in the induction distance), the current of the transmitting coil can exceed a current threshold Imax set by the system, and if the current of the transmitting circuit exceeds Imax for 5 times continuously, the system can judge that the pot cover assembly is not provided with an alarm prompt. If it is detected that the voltage value returned by the receiving coil is not equal to the set voltage value, for example, 24V, and the detected voltage values are abnormal for 5 consecutive transmissions, the system may determine that the transmitting coil and the receiving coil are in a matching failure.
In an exemplary embodiment of the present invention, if the system detects that both the transmission current and the reception voltage satisfy the requirements, the system can determine that the lid assembly 1 is properly installed. After the power-on detection is completed, the system can enter a pot lid assembly detection and load matching procedure in the cooking stage. When the system is in the cooking state, the transmitting module 22 can send energy to the receiving coil 12 at the switching frequency fs and the duty ratio Ds (because the pot cover load is initially set in the cooking stage, the system transmits energy with the set load demand parameter); the transmitting coil detects the transmitting current and the voltage value returned by the receiving coil, if the pot cover assembly 1 is not installed in place (the coil is not in the induction distance), the current of the transmitting coil can exceed a current threshold Imax set by the system, and if the transmitting current exceeds Imax for 5 times continuously, the system can judge that the pot cover assembly 1 is in a separated state. If the detected transmitting current is normal, but the voltage value returned by the receiving coil is not equal to the set voltage value of 24V (23.7-24.3V range), the system can enter a load correction matching procedure.
EXAMPLE III
This embodiment is based on the second embodiment, and as shown in fig. 5, a load matching implementation is given.
In an exemplary embodiment of the present invention, the method may further include: and when the cooker is in a cooking state, judging the size of the load according to the size relation between the received voltage and the set voltage value, and correspondingly carrying out load matching correction.
In an exemplary embodiment of the present invention, when the system enters the cooking function state, the transmitting module 22 and the receiving module 12 can determine the transmitting current and the feedback voltage in real time, so as to compensate the load of the cooker in time according to the load change, and reduce the influence on the operation stability of the system due to too large or too small load.
In an exemplary embodiment of the present invention, the determining a load size according to a size relationship between the received voltage and the set voltage value, and performing the load matching correction accordingly may include:
when the receiving voltage is smaller than the set voltage value, judging that the load is too large, increasing the preset duty ratio, and when the preset duty ratio is adjusted to 100%, if the receiving voltage is still smaller than the set voltage value, increasing the preset frequency;
if the receiving voltage is still smaller than the set voltage value after the preset frequency is continuously increased for multiple times, it is determined that the first wireless communication module 12 and the second wireless communication module 22 are abnormally matched.
In an exemplary embodiment of the present invention, the determining a load size according to a size relationship between the received voltage and the set voltage value, and performing load matching correction accordingly may further include:
when the receiving voltage is larger than the set voltage value, judging that the load is too small, reducing the preset duty ratio, and when the preset duty ratio is adjusted to be lower than 10%, reducing the preset frequency if the receiving voltage is still larger than the set voltage value;
if the receiving voltage is still greater than the set voltage value after the preset frequency is continuously decreased for multiple times, it is determined that the first wireless communication module 12 and the second wireless communication module 22 are abnormally matched.
In an exemplary embodiment of the present invention, when the transmitting module 22 detects that the return voltage value is less than 23.5V, the system may determine that the following problem may exist at this time: 1. the load is too large, which causes the receiving module 12 to be undervoltage; 2. the coil is far away or deviated; at this time, the output voltage of the receiving end is too low, and the energy compensation is required to be performed by the transmitting end, firstly, the transmitting module 22 can perform the energy compensation by increasing the duty ratio (for example, 10%) of the transmitted signal, then, the received voltage value is continuously detected, if the voltage meets the range requirement, the duty ratio is maintained, and if the voltage is still too small, the duty ratio of the transmitted signal can be continuously increased; if the duty cycle adjustment exceeds 100%, indicating that the correction requirement cannot be met by changing the duty cycle at this time, the system can go into frequency optimization adjustment (since the coil is far away or offset will change L and C). The coils are far away or offset, which causes the induction area between the coils to be reduced, so that L and C become smaller, the corresponding resonant frequency is increased, so that the system can increase the transmission frequency by f1 (the step value can be determined by debugging, such as increasing by 1K or 2K), and if the voltage value fails to meet the range requirement after the frequency is adjusted for transmission for a plurality of times (for example, 5 times), the system can determine that the wireless communication module is in a matching fault.
In an exemplary embodiment of the present invention, when the transmitting module 22 detects that the return voltage value is greater than 25V, the system may determine that the following problem may exist at this time: 1. too little load, resulting in overvoltage of the receive module 12; 2. the distance of the coil becomes smaller or the external magnetic field interferes; at this time, the output voltage of the receiving end is too high, and the energy of the transmitting end is required to be reduced, firstly, the transmitting module 22 can reduce the energy by reducing the duty ratio (for example, 10%) of the transmitted signal, then, the received voltage value is continuously detected, if the voltage meets the range requirement, the duty ratio is kept, and if the voltage is still too large, the duty ratio of the transmitted signal can be continuously reduced; if the duty cycle adjustment is below 10%, indicating that the correction requirement cannot be met by changing the duty cycle at this time, the system may enter a frequency optimization adjustment. The distance between the coils is reduced, so that the induction area between the coils is increased, L and C are increased, the corresponding resonant frequency is increased, the transmitting frequency can be reduced by f2, and if the voltage value after continuous frequency adjustment transmission for multiple times (such as 5 times) does not meet the range requirement, the system can judge that the wireless communication module is in a matching fault.
In the exemplary embodiment of the present invention, when the relative position between the wireless communication modules is fixed and limited, the inductance and capacitance between the coils are relatively stable, so that the correction process of the load matching process can be preferentially performed by changing the duty ratio of the transmitted energy.
Example four
This embodiment is based on any of the above embodiments, and provides an example of judging whether the stirring rod 14 is mounted in place.
In an exemplary embodiment of the present invention, the pot lid assembly 1 may further include: a stirring rod 14 detection unit, a magnetic element arranged on the stirring rod 14 and a reed switch arranged on the pot cover assembly 1 except the stirring rod 14;
the method may further comprise: detecting an action signal of the reed switch by the puddler detection unit, and sending the action signal to the first wireless communication module 12;
the first wireless communication module 12 sends the action signal to the second wireless communication module 22 in a wireless communication manner, and sends the action signal to the main control unit 21 through the second wireless communication module 22;
the main control unit 21 judges whether the stirring rod 14 is installed or not according to the action signal; when the action signal is an opening signal, the stirring rod 14 is judged not to be installed; when the action signal is a closing signal, it is determined that the stirring rod 14 is installed.
In an exemplary embodiment of the invention, the detection of the stirring rod 14 can be performed by the magnet block on the stirring rod 14 and the reed pipe induction module inside the pot cover assembly 1, when the stirring rod 14 is not installed, the reed pipe is disconnected, and the cooking machine judges that the stirring rod 14 is not installed in place and can perform alarm prompt.
EXAMPLE five
This embodiment is based on any of the above embodiments, and as shown in fig. 6, an embodiment of an integrated range in which the above-described cooker is installed is given.
In an exemplary embodiment of the present invention, the cooker may be provided in the integrated cooker 4; the integrated cooker 4 may include a main control module 41, a third wireless communication module 42, a fan 43, and a cooker; the cooker may comprise the cooker a; the main control module 41 is electrically connected with the third wireless communication module 42; the second wireless communication module 22 is capable of communicating with a third wireless communication module 42 on the integrated cooker 4; the method may further comprise:
the second wireless communication module 22 transmits the control instruction to the third wireless communication module 42 by wireless communication,
the third wireless communication module 42 just sends the control command to the main control module 41;
and the main control module 41 controls the fan 43 and the kitchen range to work according to the control command.
In an exemplary embodiment of the present invention, the structure of the cooking machine may be composed of three parts, namely, a pot cover assembly 1, a pot body assembly 2 and a human-computer interaction module 3: the pot cover component 1 can be independently detached and separated and can comprise a pot cover, a stirring rod and a motor; the man-machine interaction module can be designed on the handle 15, wherein the liquid crystal touch operation panel can be designed on the upper surface of the handle 15, the stirring rod structure is used as an important part for cooking and stirring of the cooker and can be designed into a detachable cleaning structure, and the position of the mounting head part of the stirring rod structure can be provided with a magnet structure which is matched with a reed switch on a cooker cover to form a stirring rod detection structure; the liquid crystal touch operation panel on the handle 15 is designed mainly for facilitating user operation and visual display, and the panel can be designed into a touch key or a liquid crystal display screen with a touch function, and the aim is as follows: 1. the overall scheme cost of the integrated cooker is reduced; 2. the design of a control panel integrating the head and the table top of the stove is simplified, and the expansion of the machine type is facilitated; the user can carry out function selection and control through the operation panel, and is more explicit and convenient. In addition, in order to improve the technological sense of the cooker cover assembly, the atmosphere lamp 16 can be designed on the cooker cover assembly, different colors and different brightness effects can be displayed on different functions and stages of the operation of the cooker, and the interactive experience effect of a user and the cooker is improved.
In an exemplary embodiment of the present invention, the cooking machine a may be disposed in the integrated cooker 4, the integrated cooker 4 may mainly include a fan 43, a cooker, and a cabinet module (a pull basket, a disinfection cabinet, or a steaming and baking oven, etc.), the design function of the embodiment of the present invention is mainly a function of an integrated cooker hood, the integrated cooker may further include an integrated cooker complete machine power supply, a fan control circuit 44, an igniter circuit, etc., the integrated cooker 4 and the cooking machine a realize power and communication transmission through a wireless communication module (i.e., a third wireless communication module 42), output voltage is 12-24V alternating current, and the fan control circuit 44 controls the fan to operate at different rotation speeds.
In an exemplary embodiment of the invention, the method further comprises: the second wireless communication module 22 is wirelessly charged through the third wireless communication module 42, and/or the first wireless communication module 12 is wirelessly charged through the second wireless communication module 22.
In the exemplary embodiment of the invention, wireless charging can be performed among the communication modules, so that when a certain wireless communication module is abnormally powered off, wireless charging can still be performed through other wireless communication modules, and normal operation of a cooking process is ensured.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Claims (7)
1. A control method of a cooker, characterized in that the cooker comprises: a pot cover component and a pot body component;
the pot body assembly comprises: the heating device comprises a main control unit, a second wireless communication module and a heating device, wherein the second wireless communication module is electrically connected with the main control unit; the pot cover assembly comprises: the stirring rod is connected with the power output end of the motor;
the method comprises the following steps: the main control unit sends working information to the second wireless communication module, the second wireless communication module wirelessly transmits the working information and working power to the first wireless communication module, and the first wireless communication module controls the stirring rod to output stirring actions according to the working information;
the first wireless communication module collects execution state information of the motor and wirelessly transmits the execution state information to the second wireless communication module, and the main control unit outputs a control instruction according to the received execution state information transmitted back by the second wireless communication module;
the second wireless communication module wirelessly transmitting the operating power to the first wireless communication module includes: after the cooker is powered on and/or the cooker is in a cooking state, the second wireless communication module sends energy to the first wireless communication module at a preset frequency and a preset duty ratio, and detects the self emission current of the second wireless communication module and the return receiving voltage of the first wireless communication module; judging whether the pot cover assembly is normally installed, whether the first wireless communication module and the second wireless communication module are normally matched and/or whether the load is normally matched according to the transmitting current and the receiving voltage;
the method further comprises the following steps: when the cooking machine is in a cooking state, judging the size of a load according to the size relation between the receiving voltage and the set voltage value, and correspondingly performing load matching correction, wherein the load matching correction comprises the following steps: when the receiving voltage is smaller than the set voltage value, judging that the load is too large, increasing the preset duty ratio, and when the preset duty ratio is adjusted to 100%, if the receiving voltage is still smaller than the set voltage value, increasing the preset frequency;
and if the receiving voltage is still smaller than the set voltage value after the preset frequency is continuously increased for multiple times, judging that the first wireless communication module and the second wireless communication module are abnormally matched.
2. The method of claim 1, wherein the determining whether the pan cover assembly is normally installed, the first wireless communication module and the second wireless communication module are normally matched, and/or the load is normally matched according to the magnitude of the transmitting current and the receiving voltage comprises:
comparing the emission current with a preset current threshold value, and comparing the receiving voltage with a set voltage value;
when the emission current is greater than or equal to the current threshold value, determining that the pot cover assembly is not placed in place; and when the emission current is detected to be larger than or equal to the current threshold value continuously for multiple times, determining that the pot cover assembly is not placed on the pot body assembly; when the emission current is smaller than the current threshold value, judging that the pot cover assembly is placed in place;
when the received voltage is not equal to the set voltage value, determining that the first wireless communication module and the second wireless communication module are in matching failure; when the receiving voltage is equal to the set voltage value, judging that the first wireless communication module and the second wireless communication module are matched normally;
when the transmitting current is smaller than the current threshold value and the receiving voltage is not equal to the set voltage value, judging that the load matching is abnormal; and when the transmitting current is smaller than the current threshold value and the receiving voltage is equal to the set voltage value, judging that the load matching is normal.
3. The method as claimed in claim 1, wherein the determining the load according to the relationship between the received voltage and the set voltage and performing the load matching correction further comprises:
when the receiving voltage is larger than the set voltage value, judging that the load is too small, reducing the preset duty ratio, and when the preset duty ratio is adjusted to be lower than 10%, reducing the preset frequency if the receiving voltage is still larger than the set voltage value;
and if the receiving voltage is still larger than the set voltage value after the preset frequency is continuously reduced for multiple times, judging that the first wireless communication module and the second wireless communication module are abnormally matched.
4. The control method of a cooker as claimed in claim 1,
the first wireless communication module collecting the execution state information of the motor comprises: operating speed and/or operating current;
the main control unit outputs a control instruction according to the received execution state information transmitted back by the second wireless communication module, and the control instruction comprises: and judging whether the motor works normally, controlling the heating device to stop heating when judging that the motor works abnormally, and controlling the second wireless communication module to stop wirelessly transmitting the working power.
5. The control method of a cooker as claimed in claim 4,
the first wireless communication module collecting the execution state information of the motor further comprises: positive and negative rotation information of the motor;
the main control unit outputs a control instruction according to the received execution state information transmitted back by the second wireless communication module, and the control instruction comprises: and judging whether the stirring rod is blocked according to the working current, controlling the motor to rotate reversely when the stirring rod is blocked, detecting the working current after the motor rotates forwards again, and controlling the second wireless communication module to stop wirelessly transmitting the working power when the working current is still abnormal.
6. The control method of a cooker as claimed in any one of claims 1 to 5, wherein the lid assembly further comprises: the stirring rod detection unit, a magnetic element arranged on the stirring rod and a reed switch arranged on the pot cover assembly except the stirring rod;
the method further comprises the following steps: detecting an action signal of the reed switch through the stirring rod detection unit, and sending the action signal to the first wireless communication module;
the first wireless communication module sends the action signal to the second wireless communication module in a wireless communication mode, and sends the action signal to the main control unit through the second wireless communication module;
the main control unit judges whether the stirring rod is installed or not according to the action signal; when the action signal is an opening signal, judging that the stirring rod is not installed; and when the action signal is a closing signal, judging that the stirring rod is installed.
7. The control method of the cooker as claimed in any one of claims 1 to 5, wherein the cooker further comprises a human-machine interaction module; the human-computer interaction module is electrically connected with the first wireless communication module; the method further comprises the following steps:
collecting a control instruction through the man-machine interaction module, and transmitting the control instruction to the first wireless communication module;
the first wireless communication module sends the control instruction to the second wireless communication module in a wireless communication mode;
the control instruction is sent to the main control unit through the second wireless communication module;
and the main control unit controls the motor and the heating device according to the control instruction so as to finish the cooking operation.
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Effective date of registration: 20240515 Address after: No. 999, Mei Li Road, Huaiyin District, Ji'nan, Shandong Patentee after: Shandong Jiuchuang Home Appliance Co.,Ltd. Country or region after: China Address before: No. 999, Mei Li Road, Huaiyin District, Ji'nan, Shandong Patentee before: JOYOUNG Co.,Ltd. Country or region before: China |