Temperature detection method, pot and cooking utensil

Abstract

The embodiment of the present invention provides a temperature detection method, a cooker and a cooking utensil. The temperature detection method comprises: in a calibration mode, the cooker sends the obtained pre-processed temperature signal to an electromagnetic cooker, the electromagnetic cooker obtains calibration data according to the pre-processed temperature signal and the calibration temperature, and sends the calibration data to the cooker, and the cooker receives and saves the calibration data. In a non-calibration mode, the cooker calibrates the pre-processed temperature signal according to the calibration data, sends the calibrated temperature signal to the electromagnetic cooker, and the electromagnetic cooker adjusts the working parameters according to the calibrated temperature signal. Since the calibration data is obtained by the electromagnetic cooker according to the pre-processed temperature signal and the calibration temperature and is stored in the cooker, when the calibration data calibrates the pre-processed temperature signal, the calibration accuracy is high, and the working parameters of the electromagnetic cooker can be adjusted more accurately. In addition, the calibration data can be updated as needed to improve the accuracy of the calibration.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of household appliances, and in particular to a temperature detection method, a pot, and a cooking utensil. Background Art

[0002] Induction cookers have become a widely used kitchen appliance. Their working principle is to use electromagnetic induction to convert electrical energy into heat energy to heat the cooker. When the induction cooker heats the cooker, if the heating temperature is too high or too low, it will affect the user experience. If the temperature is too high, it may also cause serious safety accidents, such as the cooker catching fire. Therefore, it is necessary to detect the heating temperature of the induction cooker so as to adjust the heating temperature according to the current heating temperature of the induction cooker.

[0003] In the prior art, Figure 1 As shown, the temperature of the bottom of the pot is detected by a thermocouple arranged on the pot, and the temperature analog signal detected by the thermocouple is amplified by the signal amplification module in the signal processing circuit, and then the error in the amplified temperature analog signal is eliminated through the signal calibration module, and then the interference signal is eliminated in the filtering module, and the analog-to-digital conversion module is used to convert the temperature analog signal with the interference signal eliminated into a temperature digital signal, and finally the temperature digital signal is sent to the induction cooker in a wireless manner through the wireless transmission module.

[0004] At present, potentiometers are usually used in signal calibration modules to eliminate errors. However, potentiometers are mechanical structures with large size, high cost and low reliability. They are not easy to adjust again after the whole machine is assembled. Therefore, using potentiometers to calibrate errors has the problem of inaccurate error calibration. Summary of the invention

[0005] The embodiment of the present invention provides a temperature detection method, a cooker and a cooking utensil, wherein calibration data is obtained through an induction cooker and the calibration data is stored in the cooker, thereby improving the accuracy of temperature error calibration.

[0006] In a first aspect, an embodiment of the present invention provides a temperature detection method, which is applied to a cooker, comprising:

[0007] Acquiring a first temperature signal corresponding to the temperature of the pot or the food in the pot;

[0008] Preprocessing the first temperature signal to obtain a preprocessed temperature signal;

[0009] In a non-calibration mode, calibrating the preprocessed temperature signal according to calibration data to obtain a calibrated temperature signal, wherein the calibration data is used to indicate a difference between a temperature corresponding to the preprocessed temperature signal and a calibration temperature in the calibration mode;

[0010] The calibrated temperature signal is sent to a cooking appliance so that the cooking appliance adjusts operating parameters according to the calibrated temperature signal.

[0011] In some embodiments, before calibrating the preprocessed temperature signal according to the calibration data and obtaining the calibrated temperature signal, the method further comprises:

[0012] Obtaining a first instruction, where the first instruction is used to instruct the cooker to enter the calibration mode;

[0013] According to the first instruction, the cooker is controlled to enter a calibration mode.

[0014] In some embodiments, after controlling the cooker to enter a calibration mode according to the first instruction, the method further includes:

[0015] receiving at least one first sub-calibration data sent by the cooking appliance;

[0016] Accordingly, before calibrating the preprocessed temperature signal according to the calibration data, the method further includes:

[0017] The calibration data is determined according to the at least one first sub-calibration data, and the calibration data is saved.

[0018] In some embodiments, before determining the calibration data according to the at least one first sub-calibration data, the method further includes:

[0019] Obtaining a second instruction, where the second instruction is used to instruct the cooker to exit the calibration mode;

[0020] The determining the calibration data according to the at least one first sub-calibration data comprises:

[0021] When at least two first sub-calibration data are received, according to the second instruction, determining the first sub-calibration data received last time as the calibration data, so as to calibrate the preprocessed temperature signal in a non-calibration mode; or,

[0022] When receiving one first sub-calibration data, determining the at least one first sub-calibration data as the calibration data;

[0023] After determining the calibration data according to the at least one first sub-calibration data and saving the calibration data, the method further comprises:

[0024] According to the second instruction, the cooker is controlled to exit the calibration mode and enter the non-calibration mode.

[0025] In some embodiments, the first temperature signal is a temperature simulation signal, and the preprocessing of the first temperature signal to obtain a preprocessed temperature signal includes:

[0026] amplifying the first temperature signal to obtain an amplified temperature signal;

[0027] Performing filtering on the amplified temperature signal to obtain a filtered temperature signal;

[0028] Perform analog-to-digital conversion on the filtered temperature signal to obtain the temperature digital signal.

[0029] In a second aspect, an embodiment of the present invention provides a temperature detection method, which is applied to a cooking appliance, comprising:

[0030] In the calibration mode, receiving a pre-processed temperature signal sent by the cookware, wherein the pre-processed temperature signal is a pre-processed first temperature signal corresponding to the temperature of the cookware or the food in the cookware;

[0031] Acquiring a calibration temperature, and obtaining calibration data according to the pre-processed temperature signal and the calibration temperature, wherein the calibration data is used to calibrate the pre-processed temperature signal of the cookware in a non-calibration mode;

[0032] The calibration data is sent to the cooker.

[0033] In some embodiments, before receiving the pre-processed temperature signal sent by the cookware in the calibration mode, the method further includes:

[0034] acquiring a third instruction, wherein the third instruction is used to instruct the cooking appliance to enter the calibration mode;

[0035] According to the third instruction, the cooking appliance is controlled to enter a calibration mode.

[0036] In some embodiments, acquiring the calibration temperature and obtaining calibration data according to the preprocessed temperature signal and the calibration temperature includes:

[0037] Acquiring a calibration temperature pre-stored in the cooking appliance, and obtaining calibration data according to the pre-processed temperature signal and the calibration temperature each time the pre-processed temperature signal is received; wherein the calibration temperature pre-stored in the cooking appliance;

[0038] The step of sending the calibration data to the cooker comprises:

[0039] Each time a calibration data is obtained, the calibration data is sent to the cooker.

[0040] In some embodiments, acquiring the calibration temperature and obtaining calibration data according to the preprocessed temperature signal and the calibration temperature includes:

[0041] The temperature of the pot or the food in the pot is obtained by a temperature detection device connected to the cooking utensil, and recorded as a calibration temperature;

[0042] Each time the calibration temperature and the preprocessed temperature signal are obtained, second sub-calibration data is obtained according to the calibration temperature and the preprocessed temperature signal, wherein the calibration temperature and the first temperature signal correspond one to one;

[0043] The calibration data is obtained according to at least one of the second sub-calibration data.

[0044] In some embodiments, after controlling the cooking appliance to enter a calibration mode according to the third instruction, the method further includes:

[0045] A first instruction is sent to the cooker, where the first instruction is used to instruct the cooker to enter the calibration mode.

[0046] In some embodiments, in the calibration mode, after sending the calibration data to the cooker, the method further includes:

[0047] acquiring a fourth instruction, wherein the fourth instruction is used to instruct the cooking appliance to exit the calibration mode;

[0048] According to the fourth instruction, the cooking appliance is controlled to exit the calibration mode and enter the non-calibration mode.

[0049] In some embodiments, after obtaining the fourth instruction, the method further includes:

[0050] A second instruction is sent to the cooker, where the second instruction is used to instruct the cooker to exit the calibration mode and enter the non-calibration mode.

[0051] In a third aspect, an embodiment of the present invention provides a cooker, comprising: a first temperature detection device, a signal processing device and a first transmission device, wherein the first temperature detection device is connected to the signal processing device and the first transmission device;

[0052] The signal processing device comprises: a signal preprocessing module, a calibration module, a storage module and a control module, the signal preprocessing module is connected between the first temperature detection device and the calibration module, the calibration module is also connected to the first transmission device, the storage module is connected in parallel with the calibration module, and the control module is connected between the calibration module and the first transmission device;

[0053] The first temperature detection device is used to detect the temperature of the pot or the food in the pot, obtain a first temperature signal, and transmit the first temperature signal to the signal preprocessing module;

[0054] The signal preprocessing module is used to preprocess the first temperature signal to obtain a preprocessed temperature signal, and output the preprocessed temperature signal to the calibration module;

[0055] The storage module is used to store calibration data, wherein the calibration data is the difference between the temperature signal preprocessed in the calibration mode and the calibration temperature;

[0056] The calibration module is used to read the calibration data stored in the storage module in the non-calibration mode, obtain a calibrated temperature signal according to the pre-processed temperature signal and the calibration data, and output the calibrated temperature signal to the control module; and is also used to output the pre-processed temperature signal to the control module in the calibration mode;

[0057] The control module is used to obtain a first instruction, control the cooker to enter a calibration mode, in which the received pre-processed temperature signal is output to the first transmission device, and the received calibration data is output to the storage module; and is also used to obtain a second instruction, control the cooker to exit the calibration mode and enter a non-calibration mode, in which the received calibrated temperature signal is output to the first transmission device;

[0058] The first transmission device is used to send the preprocessed temperature signal to the second transmission device in the calibration mode, receive the calibration data sent by the second transmission device, and output the calibration data to the control module; and is also used to send the calibrated temperature signal to the second transmission device in the non-calibration mode.

[0059] In some embodiments, the first temperature signal is a temperature analog signal, and the signal preprocessing module includes: a signal amplification module, a filtering module, and an analog-to-digital A / D conversion module, wherein the signal amplification module is connected between the first temperature detection device and the filtering module, and the A / D conversion module is connected between the filtering module and the calibration module;

[0060] The signal amplification module is used to amplify the temperature analog signal to obtain an amplified temperature analog signal;

[0061] The filtering module is used to filter the amplified temperature analog signal to obtain the filtered temperature analog signal;

[0062] The A / D conversion module is used to perform A / D conversion on the filtered temperature analog signal to obtain a temperature digital signal, and output the temperature digital signal to the calibration module.

[0063] In some embodiments, the storage module includes an electrically erasable programmable read-only memory (EEPROM).

[0064] In some embodiments, the first transmission device and the second transmission device are connected by wire and / or wirelessly.

[0065] In some embodiments, the first transmission device and the second transmission device are connected by wire and / or wirelessly, and the first transmission device is a radio frequency transceiver circuit and a radio frequency antenna connected to the radio frequency transceiver circuit.

[0066] In some embodiments, the temperature detection device is a thermocouple.

[0067] In some embodiments, the cookware includes: a cooker body and a handle mounted on the cooker body, and the temperature detection device is disposed on the inner side of the bottom of the cooker body.

[0068] In some embodiments, the signal processing device and the first transmission device are embedded in the handle.

[0069] In a fourth aspect, an embodiment of the present invention provides a cooking appliance, comprising: a second transmission device and a controller; the second transmission device and the controller are installed in a receiving space formed by the bottom shell and the panel, and the second transmission device is connected to the controller;

[0070] The second transmission device is used to receive the pre-processed temperature signal sent by the first transmission device on the cookware in the calibration mode, and send the pre-processed temperature signal to the controller, and receive calibration data sent by the controller, and send the calibration data to the first transmission device, wherein the calibration data is used to indicate the difference between the pre-processed temperature signal and the calibration temperature in the calibration mode; and is also used to receive the calibrated temperature signal sent by the first transmission device on the cookware in the non-calibration mode;

[0071] The controller is used to obtain a third instruction to control the cooking appliance to enter a calibration mode, in which the calibration data is obtained according to the preprocessed temperature signal and the calibration temperature; and is also used to obtain a fourth instruction to control the cooking appliance to exit the calibration mode and enter a non-calibration mode, in which the working parameters of the cooking appliance are controlled according to the calibrated temperature signal.

[0072] In some embodiments, the controller is also electrically connected to a second temperature detection device, and the calibration temperature is obtained by the second temperature detection device;

[0073] The second temperature detection device is used to periodically detect the temperature of the pot or the food in the pot in the calibration mode, obtain at least one second temperature signal, and send the at least one second temperature signal to the controller;

[0074] The controller is used for obtaining a sub-calibration data according to the second temperature signal and the preprocessed temperature signal each time the second temperature signal is received in the calibration mode, and obtaining the calibration data according to at least one sub-calibration data.

[0075] In some embodiments, when the controller obtains the calibration data according to at least one sub-calibration data, it is specifically configured to:

[0076] An average value of at least one sub-calibration data is calculated, the average value being the calibration data.

[0077] In some embodiments, the second transmission device is connected to the first transmission device via a wired connection and / or a wireless connection.

[0078] In some embodiments, when the second transmission device is wirelessly connected to the first transmission device, the second transmission device is a radio frequency transceiver circuit and a radio frequency antenna connected to the radio frequency transceiver circuit.

[0079] In some embodiments, the controller is further configured to control the second transmission device according to the third instruction so that it sends a first instruction to the cookware, and to control the second transmission device according to the fourth instruction so that it sends a second instruction to the cookware, wherein the first instruction is used to instruct the cookware to enter the calibration mode, and the second instruction is used to instruct the cookware to exit the calibration mode and enter the non-calibration mode;

[0080] The second transmission device is further used to send the first instruction and the second instruction to the cooker.

[0081] In some embodiments, the second transmission device and the controller are disposed on the same side of the bottom casing of the cooking appliance.

[0082] The embodiment of the present invention provides a temperature detection method, a pot and a cooking utensil, wherein the pot includes a temperature detection device, a signal processing device and a first transmission device, wherein the signal processing device includes a signal preprocessing module, a calibration module and a storage module, and the cooking utensil includes a second transmission device and a controller. In the calibration mode, the controller obtains calibration data according to the measured temperature and the preset cooking temperature, and saves the calibration data in the storage module; in the non-calibration mode, the calibration module can directly read the calibration data, calibrate the temperature signal preprocessed by the signal preprocessing module, so that the calibrated temperature is very close to the actual temperature of the food in the pot, and the accuracy of the temperature error calibration is improved, so that the induction cooker can more accurately adjust the working parameters of the induction cooker according to the received calibrated temperature signal, and improve the user experience. In addition, the calibration data is stored in the storage module, and the storage module is installed on the pot, which is easy to install. In addition, the calibration data can be reused, and the calibration module can be directly called and read, thereby improving the calibration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0083] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0084] Figure 1 A circuit diagram for detecting the temperature of a cooker provided in the prior art;

[0085] Figure 2 A signaling flow chart of a temperature detection method in a non-calibration mode provided by an embodiment of the present invention;

[0086] Figure 3 A signaling flow chart of a temperature detection method in a calibration mode provided by an embodiment of the present invention;

[0087] Figure 4 A circuit diagram for detecting the temperature of a cooker provided in one embodiment of the present invention;

[0088] Figure 5 A schematic diagram of the structure of a cookware provided by an embodiment of the present invention;

[0089] Figure 6 A schematic diagram of the structure of an induction cooker provided by an embodiment of the present invention;

[0090] Figure 7 This is a schematic structural diagram of an induction cooker provided in another embodiment of the present invention. DETAILED DESCRIPTION

[0091] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0092] The terms "first", "second", "third", "fourth" and the like (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0093] In addition, it should be noted that, in the present invention, unless otherwise clearly stipulated and limited, the terms "connection", "connected", etc. should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0094] Figure 2 1 is a signaling flow chart of a temperature detection method in a non-calibration mode provided by an embodiment of the present invention. The method of this embodiment is a method for temperature detection between a pot and a cooking utensil. In the embodiment of the present invention, the cooking utensil is described by taking an induction cooker as an example. Figure 2 As shown, the temperature detection method in the non-calibration mode may include:

[0095] S201: The cookware obtains a first temperature signal corresponding to the temperature of the cookware or the food in the cookware.

[0096] In this embodiment, the cookware is provided with a temperature detection device, such as a thermocouple, which can directly detect the temperature of the food in the cookware and obtain a first temperature signal corresponding to the temperature of the food in the cookware, or the temperature of the food in the cookware can be indirectly obtained through the temperature of the cookware, so the temperature of the cookware can be detected. The first temperature signal can be, for example, an analog signal.

[0097] S202: The cooker preprocesses the first temperature signal to obtain a preprocessed temperature signal.

[0098] In this embodiment, since the first temperature signal obtained is weak and has interference signals, a temperature signal preprocessing device is provided on the cooker to preprocess the temperature signal to obtain a preprocessed temperature signal.

[0099] In some embodiments, the first temperature signal can be a temperature analog signal, and a possible implementation method of S202 is: amplifying the first temperature signal to obtain an amplified temperature signal; filtering the amplified temperature signal to obtain a filtered temperature signal; performing analog-to-digital conversion on the filtered temperature signal to obtain the temperature digital signal.

[0100] In this embodiment, after obtaining the temperature analog signal, since the signal in the obtained temperature analog signal is weak, a device for amplifying the temperature analog signal is provided on the cookware, thereby amplifying the obtained temperature analog signal; after the temperature analog signal is amplified, the interference signal in the analog signal is also amplified, therefore, it is necessary to filter the amplified temperature analog signal through a filtering device to eliminate the interference signal, thereby reducing the error between the temperature represented by the temperature analog signal and the actual temperature of the food in the cookware; since it is difficult to calibrate the analog signal, the filtered temperature analog signal is converted into a digital form to obtain a temperature data signal, thereby calibrating the temperature digital signal.

[0101] S203: The cooker calibrates the preprocessed temperature signal according to the calibration data to obtain a calibrated temperature signal.

[0102] The calibration data is used to indicate the difference between the temperature corresponding to the preprocessed temperature signal and the calibration temperature in the calibration mode.

[0103] In this embodiment, since the temperature detection device has a measurement error when detecting the temperature of the pot or the food in the pot, and the measurement error will not completely disappear after the first temperature signal is preprocessed, there is an error between the temperature represented by the preprocessed temperature signal and the actual temperature of the pot or the food in the pot. Therefore, a calibration data can be obtained in advance, and the preprocessed temperature signal can be calibrated according to the calibration data. Among them, the calibration data is the difference between the preprocessed temperature signal and the calibration temperature in the calibration mode, wherein the calibration temperature can be obtained by another temperature detection device, and the accuracy and precision of the other temperature detection device is much higher than the temperature detection device set on the pot, or the calibration temperature can be a preset cooking temperature, for example, the temperature when water boils is 100°C. The calibration data can be obtained by the user according to the preprocessed temperature signal and the calibration temperature and input into the pot, or the induction cooker calculates the calibration data according to the preprocessed temperature signal and the calibration temperature, and sends the calibration data to the pot, and the pot saves the received calibration data.

[0104] For example, when the first temperature signal represents the temperature of the food in the cooker, when the induction cooker is in the water boiling mode, the corresponding calibration data of the kettle is 4°C. In the non-calibration mode, during the water boiling process, after obtaining the pre-processed temperature signal of the kettle at any time, for example, 66°C, the pre-processed temperature signal is calibrated according to the calibration data to obtain a calibrated temperature signal, that is, 66°C plus 4°C, to obtain 70°C, which is closer to the actual temperature of the water in the kettle.

[0105] It should be noted that when the calibration temperature is obtained by another temperature detection device, in the calibration mode, when the temperature detection device provided on the cookware is used to detect the temperature of the cookware, the another temperature detection device detects the temperature of the cookware; when the temperature detection device provided on the cookware is used to detect the temperature of the food in the cookware, the another temperature detection device detects the temperature of the food in the cookware. When the calibration temperature is a preset cooking temperature, the calibration temperature detection device is used to detect the temperature of the cookware, so as to obtain calibration data by comparing the preset cooking temperature with the temperature of the cookware in the calibration mode.

[0106] S204: The cooker sends the calibrated temperature signal to the induction cooker, and correspondingly, the cooking utensil receives the calibrated temperature signal sent by the cooker.

[0107] The calibrated temperature signal is a pre-processed temperature signal calibrated according to calibration data.

[0108] In this embodiment, the cooker sends the calibrated temperature signal to the induction cooker, and the induction cooker receives the calibrated temperature signal. The sending method can be wireless transmission, such as Bluetooth, wireless network, etc., or wired transmission, such as transmission through a wire.

[0109] S205: The cooking appliance adjusts operating parameters according to the calibrated temperature signal.

[0110] In this embodiment, after the induction cooker receives the calibrated temperature signal, the controller in the induction cooker adjusts the working parameters of the induction cooker according to the calibrated temperature signal. The working parameters may include at least one of the following: heating power, heating time, insulation temperature, etc.

[0111] In this embodiment, in the non-calibration mode, the cookware obtains a first temperature signal corresponding to the temperature of the cookware or the food in the cookware, and pre-processes the first temperature signal to obtain a pre-processed temperature signal, calibrates the pre-processed temperature signal according to the calibration data, obtains the calibrated temperature signal, and sends the calibrated temperature signal to the cooking utensil. After the cooking utensil receives the calibrated temperature signal, the difference between the temperature corresponding to the pre-processed temperature signal and the calibration temperature. The pre-processed temperature signal is calibrated according to the calibration data, so that the calibrated temperature signal is very close to the actual temperature of the food in the cookware, thereby improving the accuracy of the temperature error calibration, so that the cooking utensil can more accurately adjust the working parameters of the cooking utensil according to the received calibrated temperature signal, thereby improving the user experience. Moreover, after obtaining the calibration data, the calibration data can be reused to calibrate the pre-processed temperature signal.

[0112] In some embodiments, the cookware enters the calibration mode by: obtaining a first instruction, wherein the first instruction is used to instruct the cookware to enter the calibration mode; and controlling the cookware to enter the calibration mode according to the first instruction.

[0113] In this embodiment, the way in which the cooker obtains the first instruction may, for example, be that the user sends the first instruction to the cooker through a terminal device, or a button or touch key is set on the cooker, and the user operates the button or touch screen to input the first instruction to the cooker, or after the cooking appliance enters the calibration mode, the cooking appliance sends the first instruction to the cooker, or the cooker enters the calibration mode when a preset calibration time arrives (equivalent to obtaining the first instruction).

[0114] In some embodiments, the cooking appliance enters the calibration mode in the following manner: the cooking appliance obtains a third instruction, wherein the third instruction is used to instruct the cooking appliance to enter the calibration mode; and according to the third instruction, the cooking appliance is controlled to enter the calibration mode.

[0115] In this embodiment, the cooking appliance obtains the third instruction in a manner such as a user sending the third instruction to the cooking appliance through a terminal device, or the user inputs the third instruction to the cooking appliance by operating a button or touch key set on the cooking appliance, so that the cooking appliance enters the calibration mode. In some embodiments, after the cooking appliance enters the calibration mode, the first instruction is sent to the pot, so that the pot also enters the calibration mode.

[0116] Figure 3 A signaling flow chart of a temperature detection method in a calibration mode provided by an embodiment of the present invention is shown in FIG. Figure 3 As shown, the method of this embodiment is a method for detecting the temperature between a pot and a cooking utensil, comprising:

[0117] S301: The cookware obtains a first temperature signal corresponding to the temperature of the cookware or the food in the cookware.

[0118] S302: The cooker preprocesses the first temperature signal to obtain a preprocessed temperature signal.

[0119] The preprocessed temperature signal is a preprocessed first temperature signal corresponding to the temperature of the pot or the food in the pot.

[0120] The specific implementations of S301 and S302 in this embodiment may refer to S201 and S202 respectively, and will not be described in detail here.

[0121] S303: The cooker sends the preprocessed temperature signal to the cooking appliance, and correspondingly, the cooking appliance receives the preprocessed temperature signal sent by the cooker.

[0122] In this embodiment, the cooking appliance is described by taking an induction cooker as an example, the cooker sends the preprocessed temperature signal to the induction cooker, and the induction cooker receives the preprocessed temperature signal. The sending method can be wireless transmission, such as Bluetooth, wireless network, etc., or wired transmission, such as transmission through a wire.

[0123] S304: The cooking appliance acquires a calibration temperature, and obtains calibration data according to the preprocessed temperature signal and the calibration temperature.

[0124] The calibration data is used to calibrate the pre-processed temperature signal of the cookware in a non-calibration mode.

[0125] In this embodiment, after receiving the preprocessed temperature signal, the cooking appliance obtains the calibration temperature pre-stored in the cooking appliance, thereby obtaining calibration data according to the preprocessed temperature signal and the calibration temperature.

[0126] S305: The cooking utensil sends the calibration data to the pot, and correspondingly, the pot receives and stores the calibration data sent by the cooking utensil.

[0127] In this embodiment, after the cooking appliance obtains the calibration data, it sends the calibration data to the cooker. After the cooker receives the calibration data, it saves the calibration data.

[0128] In some embodiments, a possible implementation method for a cooking utensil to obtain calibration data is: obtaining the temperature of the pot or the food in the pot through a temperature detection device connected to the cooking utensil, recorded as the calibration temperature; each time the calibration temperature and the pre-processed temperature signal are obtained, obtaining second sub-calibration data based on the calibration temperature and the pre-processed temperature signal, wherein the calibration temperature and the first temperature signal correspond one-to-one; and obtaining the calibration data based on at least one of the second sub-calibration data.

[0129] Correspondingly, the cooker receives the first sub-calibration data sent by the cooking utensil, and determines the first sub-calibration data as the calibration data, so as to calibrate the preprocessed temperature signal in the non-calibration mode.

[0130] In this embodiment,

[0131] A temperature detection device is detachably provided on the induction cooker, and the accuracy and precision of the temperature detection device are much higher than that of the temperature detection device provided on the cooker. In this embodiment, the temperature detection device on the cooker and the temperature detection device connected to the induction cooker both detect the temperature of the food in the cooker as an example for explanation. The temperature detection device connected to the induction cooker directly transmits the detected temperature of the food in the cooker to the induction cooker, which is recorded as the calibration temperature. The temperature detection device and the temperature detection device on the cooker periodically and synchronously detect the temperature of the food in the cooker, and the induction cooker calculates the difference between the calibration temperature obtained each time and the temperature represented by the pre-processed temperature signal sent by the cooker to obtain the second sub-calibration data. When the induction cooker obtains each second sub-calibration data, it does not send the second sub-calibration data to the cooker, but when the induction cooker receives an instruction to exit the calibration mode, the induction cooker processes at least one second sub-calibration data to obtain calibration data, for example, calculates the average value of at least one second sub-calibration data, and uses the average value as calibration data. The induction cooker sends the calibration data to the cooker, and then the induction cooker exits the calibration mode. The calibration data received by the cookware is called sub-calibration data. After receiving the sub-calibration data, the cookware determines that the sub-calibration data is calibration data and saves it, so as to calibrate the pre-processed temperature signal according to the calibration data in the non-calibration mode.

[0132] In some embodiments, a possible implementation of the cooking appliance obtaining calibration data is: obtaining a calibration temperature pre-stored in the cooking appliance, and obtaining calibration data according to the pre-processed temperature signal and the calibration temperature each time the pre-processed temperature signal is received; wherein the calibration temperature pre-stored in the cooking appliance. wherein the cooking appliance sends the calibration data to the cooker after each calibration data is obtained.

[0133] Correspondingly, the cooker receives at least two first sub-calibration data sent by the cooking utensil; and after finishing the second instruction, according to the second instruction, determines that the first sub-calibration data received for the last time is the calibration data, so as to calibrate the preprocessed temperature signal in the non-calibration mode.

[0134] In this embodiment, in the calibration mode, for a cooking mode in which the temperature of the food in the pot can be known according to the state of the food in the pot, for example, when the pot is a kettle, the boiling temperature of water is 100°C, and the 100°C is the preset cooking temperature, the preset cooking temperature in each cooking mode is pre-stored in the induction cooker. When the cooking mode is boiling water, during the boiling process, the temperature detection device on the pot periodically detects the temperature of the water to obtain a first temperature signal, and sends the pre-processed temperature signal to the induction cooker. After each receiving of the pre-processed temperature signal, the induction cooker calculates calibration data according to the pre-processed temperature signal and the preset cooking temperature, and sends the calibration data to the pot, and the pot receives the calibration data, wherein the calibration data received by the pot is called the first sub-calibration data, for example, each received first sub-calibration data is saved, or the first sub-calibration data currently received is used to cover the previous first sub-calibration data, and when the pot receives an instruction to exit the calibration mode, the last saved first sub-calibration data is used as the calibration data.

[0135] In some embodiments, a possible implementation method for the cooking appliance to exit the calibration mode may be, for example: obtaining a fourth instruction, wherein the fourth instruction is used to instruct the cooking appliance to exit the calibration mode; and according to the fourth instruction, controlling the cooking appliance to exit the calibration mode and enter the non-calibration mode.

[0136] In this embodiment, the cooking appliance may obtain the fourth instruction by, for example, referring to the third instruction, which will not be described in detail here, or by detecting the calibration data sent by the cooking appliance to the cooker, and when the values ​​of N consecutive calibration data are the same or the variance is within a preset range (equivalent to obtaining the fourth instruction), the calibration mode is exited. In some embodiments, when the cooking appliance exits the calibration mode, a second instruction may be sent to the cooker to cause the cooker to also exit the calibration mode.

[0137] In some embodiments, a possible implementation method for the cookware to exit the calibration mode is: obtaining a second instruction, wherein the first instruction is used to instruct the cookware to exit the calibration mode; and according to the second instruction, controlling the cookware to exit the calibration mode and enter the non-calibration mode.

[0138] In this embodiment, the cooker exits the calibration mode through, for example, a second instruction. The method for obtaining the second instruction may refer to the first instruction, which will not be described in detail here.

[0139] It should be noted that the accuracy of the temperature detection device in the cookware decreases with use, resulting in an increasing error between the temperature indicated by the pre-processed temperature signal and the actual temperature of the food in the cookware. If the calibration is always performed based on the previous calibration data, the accuracy of the calibration will become worse and worse, that is, the effect after calibration will become worse and worse. Therefore, the user can re-enter the calibration mode as needed to obtain new calibration data. Among them, before re-entering the calibration mode and obtaining new calibration data, for example, the previous calibration data saved in the cookware can also be deleted.

[0140] In this embodiment, in the calibration mode, the cookware obtains a first temperature signal corresponding to the temperature of the cookware or the food in the cookware, and pre-processes the temperature simulation signal to obtain a pre-processed temperature signal, and sends the pre-processed temperature signal to the cooking utensil. The cooking utensil obtains calibration data according to the pre-processed temperature signal and the calibration temperature, and sends the calibration data to the cookware. After receiving the calibration data, the cookware saves the calibration data to calibrate the pre-processed temperature signal according to the calibration data in the non-calibration mode. Since the calibration data is obtained by the cooking utensil according to the pre-processed temperature signal and the calibration temperature, when the calibration data is used to calibrate the pre-processed temperature signal, the calibration accuracy is high, so that the working parameters of the cooking utensil can be adjusted more accurately. In addition, the calibration data can be updated as needed to further improve the accuracy of the calibration, and the calibration data update operation is simple and easy to implement.

[0141] Figure 4 A circuit diagram for detecting the temperature of a cooker provided in one embodiment of the present invention. Figure 5 This is a schematic structural diagram of a cookware provided in one embodiment of the present invention. Figure 6 This is a schematic diagram of the structure of an induction cooker provided by an embodiment of the present invention. Figures 4 to 6 As shown, the cooker 100 includes: a temperature detection device 111, a signal processing device 122 and a first transmission device 123, and the temperature detection device 111 is connected to the signal processing device 122 and the first transmission device 123.

[0142] Among them, the signal processing device 122 includes: a signal preprocessing module 1220, a calibration module 1224, a storage module 1225 and a control module 1226. The signal preprocessing module 1220 is connected between the temperature detection device 111 and the calibration module 1224. The calibration module 1224 is also connected to the first transmission device 123. The storage module 1225 is connected in parallel with the calibration module 1224. The control module 1226 is connected between the calibration module 1224 and the first transmission device 123.

[0143] The induction cooker 200 includes: a bottom shell 210, a panel 220 installed on the bottom shell, a second transmission device 211 and a controller 212; the second transmission device 211 and the controller 212 are installed in a receiving space formed by the bottom shell 210 and the panel 220, and the second transmission device 211 is connected to the controller 212.

[0144] The first temperature detection device 111 is used to detect the temperature of the cookware or the food in the cookware, obtain a first temperature signal, and transmit the first temperature signal to the signal preprocessing module 1220 .

[0145] The signal preprocessing module 1220 is used to preprocess the first temperature signal to obtain a preprocessed temperature signal, and output the preprocessed temperature signal to the calibration module 1224 .

[0146] The storage module 1225 is used to store calibration data, where the calibration data is the difference between the temperature signal preprocessed in the calibration mode and the calibration temperature.

[0147] The calibration module 1224 is used to read the calibration data stored in the storage module 1225 in the non-calibration mode, and obtain the calibrated temperature signal according to the preprocessed temperature signal and the calibration data, and output the calibrated temperature signal to the control module; it is also used to output the preprocessed temperature signal to the control module in the calibration mode.

[0148] The control module is used to obtain a first instruction, control the cookware to enter a calibration mode, in which the received pre-processed temperature signal is output to the first transmission device 123, and the received calibration data is output to the storage module 1225; and is also used to obtain a second instruction, control the cookware to exit the calibration mode and enter a non-calibration mode, in which the received calibrated temperature signal is output to the first transmission device 123.

[0149] The first transmission device 123 is used to send the preprocessed temperature signal to the second transmission device 211 in the calibration mode, receive the calibration data sent by the second transmission device 211, and output the calibration data to the control module; it is also used to send the calibrated temperature signal to the second transmission device 211 in the non-calibration mode.

[0150] The second transmission device 211 is used to receive the pre-processed temperature signal sent by the first transmission device 123 on the cooker in the calibration mode, and send the pre-processed temperature signal to the controller 212, and receive calibration data sent by the controller 212, and send the calibration data to the first transmission device 123, wherein the calibration data is used to indicate the difference between the pre-processed temperature signal and the calibration temperature in the calibration mode; it is also used to receive the calibrated temperature signal sent by the first transmission device 123 on the cooker in the non-calibration mode; it is also used to obtain a third instruction, which is used to instruct the induction cooker to enter the calibration mode; it is also used to obtain a fourth instruction, which is used to instruct the induction cooker to exit the calibration mode;

[0151] Controller 212 is used to obtain a third instruction to control the induction cooker to enter a calibration mode. In the calibration mode, calibration data is obtained based on the preprocessed temperature signal and the calibration temperature. It is also used to obtain a fourth instruction to control the induction cooker to exit the calibration mode and enter a non-calibration mode. In the non-calibration mode, the working parameters of the induction cooker are controlled based on the calibrated temperature signal. It is also used to obtain a third instruction, which is used to instruct the induction cooker to enter a calibration mode. It is also used to obtain a fourth instruction, which is used to instruct the induction cooker to exit the calibration mode.

[0152] In this embodiment, the cooker 100 is equipped with a temperature detection device 111, a signal processing device 122 and a first transmission device 123. The temperature detection device 111 is connected to the signal processing device 122 and the first transmission device 123, so that the measured temperature signal is processed by the signal processing device 122 and then transmitted by the first transmission device 123. In some embodiments, the cooker 100 is equipped with a power supply 121 (in Figure 4 The power supply 121 is connected to the signal processing device 122 and the first transmission device 123 to provide power to the signal processing device 122 and the first transmission device 123.

[0153] Wherein, in some embodiments, Figure 4 As shown, the temperature detection device 111 is a thermocouple. It should be noted that when the temperature detection device 111 is a thermocouple, Figure 4 The “+” and “−” in the temperature detection device 111 represent the positive and negative poles of the thermocouple.

[0154] In some embodiments, Figure 5 As shown, the cookware 100 includes a cooker body 110 and a handle 120 installed on the cooker body 110 , and a temperature detection device 111 is installed on the inner side of the bottom of the cooker body 110 , so that the temperature inside the cooker body 110 measured by the temperature detection device 111 can be more accurate.

[0155] In some embodiments, the signal processing device 122 and the first transmission device 123 are embedded in the handle 120. For example, Figure 5 As shown, the handle 120 includes a handle base 131 and a handle cover 132, the handle cover 132 covers the handle base 131, and the handle base 131 is also connected to a handle grip 133; the signal processing device 122 and the first transmission device 123 are embedded in the accommodation space formed by the handle base 131 and the handle cover 132; and the power supply 121 is embedded in the handle grip 133. By embedding the signal processing device 122 and the first transmission device 123 in the accommodation space formed by the handle base 131 and the handle cover 132 and embedding the power supply 121 in the handle grip 133, the signal processing device 122, the first transmission device 123 and the power supply 121 can be protected, and the signal processing device 122, the first transmission device 123 and the power supply 121 in the cookware can be prevented from being damaged, thereby causing the problem of inaccurate temperature calibration.

[0156] It should be noted that the embodiment of the present invention does not limit the type of the cookware 100, and the cookware 100 may be, for example, a frying pan, a steamer, a kettle, or the like. Figure 4 Taking a wok as an example, when the cooker 100 is other types of cookers such as a steamer or a kettle, the temperature detection device 111 is installed on the pot body 110, and the power supply 121, the signal processing device 122 and the first transmission device 123 can be reasonably installed according to the shape of the cooker. However, the connection relationship between the temperature detection device 111, the power supply 121, the signal processing device 122 and the first transmission device 123 remains unchanged.

[0157] like Figure 4 As shown, the signal processing device 122 includes a signal preprocessing module 1220, a calibration module 1224, a storage module 1225 and a control module 1226. The signal preprocessing module 1220 is connected between the temperature detection device 111 and the calibration module 1224, the calibration module 1224 is also connected to the first transmission device 123, the storage module 1225 is connected in parallel with the calibration module 1224, and the control module 1226 is connected between the calibration module 1224 and the first transmission device 123.

[0158] Correspondingly, such as Figure 5 As shown, the induction cooker 200 includes: a second transmission device 211 and a controller 212. The second transmission device 211 is electrically connected to the controller 212. It should be noted that the induction cooker 200 is not limited to including the second transmission device 211 and the controller 212. Optionally, the induction cooker 200 may also include other components, such as a coil, which is not shown in the figure.

[0159] When the cooker 100 is used on the induction cooker 200, a cooking mode is selected, wherein for each cooking mode, the working parameters of the induction cooker 200 are adjusted according to the temperature of the food in the cooker 100. Therefore, it is necessary to measure the temperature of the food in the cooker 100, or to measure the temperature of the cooker 100 to indirectly obtain the temperature of the food in the cooker 100, so as to adjust the working parameters of the induction cooker 200 according to the temperature. In particular, the embodiment of the present invention is described by taking the measurement of the temperature of the food in the cooker 100 as an example.

[0160] When the temperature detection device 111 measures the temperature of the food in the pot 100, there is an error between the obtained temperature and the actual temperature of the food in the pot 100, so it is necessary to calibrate the temperature measured by the temperature detection device 111. The calibration data needs to be obtained in the calibration mode and can be used directly afterwards, wherein the calibration data corresponds to the pot 100, that is, when the calibration data of the pot 100 is obtained through an induction cooker, when the pot 100 is heated by another induction cooker, the calibration data may remain unchanged.

[0161] In the present invention, for any cooking mode, the induction cooker 200 receives the third instruction sent by the user through the second transmission device 211, and the second transmission device 211 transmits the received third instruction to the controller 212, and the controller 212 controls the induction cooker 200 to enter the calibration mode. After the induction cooker 200 enters the calibration mode, the first instruction is sent to the cooker 100 through the second transmission device 211, and after the first transmission device 123 receives the first instruction, it transmits the first instruction to the control module 1226, and the control module 1226 controls the cooker 100 to enter the calibration mode.

[0162] In the calibration mode, the pot 100 periodically or randomly measures the temperature of the food in the pot 100 through the temperature detection device 111, which is recorded as the first temperature signal. Among them, for the cooking mode in which the current temperature of the food can be determined according to the state of the food, for example, when boiling water, the corresponding temperature when the water boils is 100°C, the determined temperature is recorded as the preset cooking temperature, and the preset cooking temperature corresponding to the cooking mode can be saved on the induction cooker 200. For the boiling water mode, during the boiling water process, the pot 100 obtains the first temperature signal each time, pre-processes the first temperature signal, and sends the pre-processed temperature signal to the induction cooker 200 through the control module 1226 and the first transmission device 123. After receiving the pre-processed temperature signal, the second transmission device 211 on the induction cooker 200 transmits it to the controller, and the controller retrieves the saved preset cooking temperature, obtains calibration data according to the preset cooking temperature and the pre-processed temperature signal, and sends it to the pot 100 through the second transmission device 211. The first transmission device 123 on the cooker 100 receives the calibration data, and transmits it to the storage module 1225 through the control module 1226 and saves it. As the induction cooker 200 is heated, the temperature of the water in the cooker 100 gradually increases. During the process of increasing the water temperature, the difference between the preset cooking temperature and the pre-processed temperature signal becomes smaller and smaller. When the water boils, N consecutive calibration data are the same or the variance of the N calibration data is within the preset position. At this time, for example, the induction cooker 200 receives the fourth instruction sent by the user through the second transmission device 211, and the second transmission device 211 transmits the received fourth instruction to the controller 212, and the controller 212 controls the induction cooker 200 to exit the calibration mode. After the induction cooker 200 enters the calibration mode, the second transmission device 211 sends the second instruction to the cooker 100. After receiving the second instruction, the second transmission device 123 transmits the second instruction to the control module 1226, and the control module 1226 controls the cooker 100 to exit the calibration mode. In some embodiments, when the cooker 100 exits the calibration mode, the cooker 100 will save the last received calibration data and delete other calibration data to save storage space.

[0163] In some embodiments, Figure 7 This is a schematic diagram of the structure of an induction cooker provided by another embodiment of the present invention. Figure 7 As shown, the controller 212 is also electrically connected to the second temperature detection device 213 , and the calibration temperature is obtained by the second temperature detection device 213 .

[0164] The second temperature detection device 213 is used to periodically detect the temperature of the cookware 100 in the calibration mode, obtain at least one second temperature signal, and send the at least one second temperature signal to the controller 212;

[0165] The controller 212 is configured to obtain a sub-calibration data according to the second temperature signal and the preprocessed temperature signal each time a second temperature signal is received in the calibration mode, and obtain calibration data according to at least one sub-calibration data.

[0166] In this embodiment, a temperature detection device 213 is detachably provided on the induction cooker 200 to detect the temperature of the food in the cooker 100, and the precision and accuracy of the temperature measured by the temperature detection device 213 need to be much greater than that of the temperature detection device 111, wherein the temperature measured by the temperature detection device 213 is recorded as the second temperature signal. The temperature detection device 213 is connected to the controller 212, so that the second temperature signal is sent to the controller 212 after the second temperature signal is obtained.

[0167] When the induction cooker 200 and the cooker 100 are in the calibration mode, the temperature detection device 213 and the temperature detection device 111 periodically or synchronously measure the temperature of the food in the cooker 100 or the temperature of the cooker or the food in the cooker at any time. The embodiment of the present invention is described by taking the detection of the temperature of the food in the cooker 100 as an example.

[0168] For each measurement, after the controller 212 receives the pre-processed temperature signal and the calibration temperature (i.e., the second temperature signal), it compares the temperature represented by the pre-processed temperature signal with the calibration temperature to obtain sub-calibration data. In the above manner, the controller 212 of the induction cooker can obtain at least one sub-calibration data and save at least one sub-calibration data. When the induction cooker receives the fourth instruction, the controller 212 processes at least one sub-calibration data to obtain calibration data, for example, averages at least one sub-calibration data, and sends the average as calibration data to the second transmission device 211, and the second transmission device 211 sends the calibration data to the first transmission device 123 by wireless. After receiving the calibration data, the first transmission device 123 passes the calibration data to the storage module 1224, so that the calibration data is saved in the storage module 1224. After obtaining each sub-calibration data, the induction cooker 200 can also send each sub-calibration data to the cooker 100 through the second transmission device 211. The storage module 1225 in the cooker 100 saves each received sub-calibration data. When the control module 1226 of the cooker 100 obtains the second instruction, the control module 1226 obtains a calibration data based on at least one saved sub-calibration data, for example, calculates the average of at least one sub-calibration data, uses the average as the calibration data, and saves the calibration data in the storage module 1225.

[0169] After the calibration data is obtained, the cookware 100 measures a temperature analog signal used to represent the temperature of the food in the cookware 100 through the temperature detection device 111 during normal use (i.e., in non-calibration mode), and outputs the pre-processed temperature signal to the calibration module 1224 according to the operation in the calibration mode. At this time, the control module 1226 controls the calibration module 1224 to call the storage module 1225 to read the calibration data stored therein. Among them, after obtaining the calibration data, the calibration module 1224 can directly obtain the calibrated temperature signal according to the pre-processed temperature signal and the calibration data, and then transmit the calibrated temperature signal to the control module 1226; or the pre-processed temperature signal and the calibration data can be transmitted to the control module 1226, and the control module 1226 obtains the calibrated temperature signal. In some embodiments, the calibration module 1224 and the control module 1226 can be integrated on a single chip. The control module 1226 transmits the calibrated temperature signal to the first transmission device 123, and then the first transmission device 123 sends the calibrated temperature signal to the second transmission device 211 of the induction cooker 200 wirelessly. The second transmission device 211 sends the calibrated temperature signal to the controller 212, so that the controller 212 adjusts the working parameters of the induction cooker 200 according to the calibrated temperature signal.

[0170] In this embodiment, the pot includes a temperature detection device, a signal processing device and a first transmission device, wherein the signal processing device includes a signal preprocessing module, a calibration module, a storage module and a control module, and the induction cooker includes a second transmission device and a controller. In the calibration mode, the controller obtains calibration data according to the preprocessed temperature signal and the calibration temperature, and saves the calibration data in the storage module; in the non-calibration mode, the calibration module can directly read the calibration data, calibrate the temperature signal preprocessed by the signal preprocessing module, so that the calibrated temperature is very close to the actual temperature of the pot or the food in the pot, and improves the accuracy of the temperature error calibration, so that when the controller adjusts the working parameters of the induction cooker according to the received calibrated temperature signal, the working parameters are adjusted more accurately, the user experience is improved, and the safety of the induction cooker is improved. In addition, the calibration data is stored in the storage module, and the storage module is installed on the pot, which is easy to install. In addition, the calibration data can be reused, and the calibration module can be directly called and read, which improves the calibration efficiency.

[0171] In some embodiments, Figure 4 As shown, based on the above embodiment, the signal preprocessing module 1220 includes: a signal amplification module 1221, a filtering module 1222 and an analog-to-digital A / D conversion module 1223. The signal amplification module 1221 is connected between the temperature detection device 111 and the filtering module 1222, and the A / D conversion module 1223 is connected between the filtering module 1222 and the calibration module 1224.

[0172] The signal preprocessing module 1220 preprocesses the temperature analog signal, including: a signal amplifying module 1221, amplifying the temperature analog signal to obtain an amplified temperature analog signal, a filtering module 1222, filtering the amplified temperature analog signal to obtain the filtered temperature analog signal; an A / D conversion module 1223, performing A / D conversion on the filtered temperature analog signal to obtain a temperature digital signal, and outputting the temperature digital signal to the calibration module 1224. Therefore, in this embodiment, the transmission direction of the temperature signal (including the temperature analog signal or the temperature digital signal) in the signal processing device 122 is: signal amplifying module 1221→filtering module 1222→analog-to-digital A / D conversion module 1223→calibration module 1224→control module 1226. Among them, after the temperature analog signal is processed by the signal preprocessing module 1220, a temperature digital signal is obtained. In the calibration mode, the calibration module 1224 directly transmits the temperature digital signal to the first transmission device 123 through the control module 1226; in the non-calibration mode, the control module 1226 controls the calibration module 1224 to call the storage module 1225, reads the calibration data stored therein, and obtains the calibrated temperature digital signal according to the temperature digital signal and the calibration data, and then transmits the calibrated temperature digital signal to the first transmission device 123. It can be seen that in the non-calibration mode, the calibration module 1224 performs calibration processing on the temperature digital signal, thereby improving the accuracy of calibration. Among them, in some embodiments, the A / D conversion module 1223 can be designed with reference to the prior art, which will not be repeated here.

[0173] In some embodiments, the first transmission device 123 and the second transmission device 211 may be connected by wire or wirelessly. When connected by wire, for example, the first transmission device 123 includes a terminal, and the second transmission device 211 includes a terminal, and the two terminals may be directly connected or connected by a wire. When connected wirelessly, the first transmission device 123 and the second transmission device 211 may both be a radio frequency transceiver circuit and a radio frequency antenna connected to the radio frequency transceiver circuit.

[0174] In some embodiments, the storage module 1225 includes an electrically erasable programmable read-only memory (EEPROM). The calibration data is stored in the EEPROM for easy storage and reading. When the calibration data needs to be changed, the original calibration data in the EEPROM is directly deleted and the new calibration data is saved, thereby improving the flexibility and user experience of the cookware.

[0175] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.

[0176] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A temperature detection method, applied to a cooker, characterized in that: include: Acquiring a first temperature signal corresponding to the temperature of the pot or the food in the pot; Preprocessing the first temperature signal to obtain a preprocessed temperature signal; In a non-calibration mode, calibrating the preprocessed temperature signal according to calibration data to obtain a calibrated temperature signal, wherein the calibration data is used to indicate a difference between a temperature corresponding to the preprocessed temperature signal and a calibration temperature in the calibration mode; sending the calibrated temperature signal to a cooking appliance so that the cooking appliance adjusts operating parameters according to the calibrated temperature signal; Among them, if the first temperature signal is the temperature of the cookware, then the calibration temperature is the temperature of the cookware; if the first temperature signal is the temperature of the food in the cookware, then the calibration temperature is the temperature of the food in the cookware.

2. The method according to claim 1, characterized in that Before calibrating the preprocessed temperature signal according to the calibration data to obtain the calibrated temperature signal, the method further comprises: Obtaining a first instruction, where the first instruction is used to instruct the cooker to enter the calibration mode; According to the first instruction, the cooker is controlled to enter a calibration mode.

3. The method according to claim 2, characterized in that After controlling the cooker to enter the calibration mode according to the first instruction, the method further includes: receiving at least one first sub-calibration data sent by the cooking appliance; Accordingly, before calibrating the preprocessed temperature signal according to the calibration data, the method further includes: The calibration data is determined according to the at least one first sub-calibration data, and the calibration data is saved.

4. The method according to claim 3, characterized in that Before determining the calibration data according to the at least one first sub-calibration data, the method further includes: Obtaining a second instruction, where the second instruction is used to instruct the cooker to exit the calibration mode; The determining the calibration data according to the at least one first sub-calibration data comprises: When at least two first sub-calibration data are received, according to the second instruction, determining the first sub-calibration data received last time as the calibration data, so as to calibrate the preprocessed temperature signal in a non-calibration mode; or, When receiving a first sub-calibration data, determining the first sub-calibration data as the calibration data; After determining the calibration data according to the at least one first sub-calibration data and saving the calibration data, the method further comprises: According to the second instruction, the cooker is controlled to exit the calibration mode and enter the non-calibration mode.

5. The method according to any one of claims 1 to 4, characterized in that: The first temperature signal is a temperature simulation signal, and the preprocessing of the first temperature signal to obtain a preprocessed temperature signal includes: amplifying the first temperature signal to obtain an amplified temperature signal; Performing filtering processing on the amplified temperature signal to obtain a filtered temperature signal; Perform analog-to-digital conversion on the filtered temperature signal to obtain a temperature digital signal.

6. A temperature detection method, applied to a cooking appliance, characterized in that: include: In the calibration mode, receiving a pre-processed temperature signal sent by the cookware, wherein the pre-processed temperature signal is a pre-processed first temperature signal corresponding to the temperature of the cookware or the food in the cookware; Acquire a calibration temperature, and obtain calibration data according to the preprocessed temperature signal and the calibration temperature, wherein the calibration data is the difference between the temperature corresponding to the preprocessed temperature signal and the calibration temperature, and the calibration data is used to calibrate the preprocessed temperature signal of the cookware in a non-calibration mode; wherein if the first temperature signal is the temperature of the cookware, the calibration temperature is the temperature of the cookware; and if the first temperature signal is the temperature of the food in the cookware, the calibration temperature is the temperature of the food in the cookware; The calibration data is sent to the cooker.

7. The method according to claim 6, characterized in that In the calibration mode, before receiving the pre-processed temperature signal sent by the cookware, the method further includes: acquiring a third instruction, wherein the third instruction is used to instruct the cooking appliance to enter the calibration mode; According to the third instruction, the cooking appliance is controlled to enter a calibration mode.

8. The method according to claim 7, characterized in that The obtaining of the calibration temperature and obtaining calibration data according to the preprocessed temperature signal and the calibration temperature includes: Acquire a calibration temperature pre-stored in the cooking appliance, and obtain calibration data according to the pre-processed temperature signal and the calibration temperature each time the pre-processed temperature signal is received; wherein the calibration temperature is a temperature pre-stored in the cooking appliance; The step of sending the calibration data to the cooker comprises: Each time a calibration data is obtained, the calibration data is sent to the cooker.

9. The method according to claim 7, characterized in that: The obtaining of the calibration temperature and obtaining calibration data according to the preprocessed temperature signal and the calibration temperature includes: The temperature of the pot or the food in the pot is obtained by a temperature detection device connected to the cooking utensil, and recorded as a calibration temperature; Each time the calibration temperature and the preprocessed temperature signal are obtained, second sub-calibration data is obtained according to the calibration temperature and the preprocessed temperature signal, wherein the calibration temperature and the first temperature signal correspond one to one; The calibration data is obtained according to at least one of the second sub-calibration data.

10. The method according to claim 7, characterized in that After controlling the cooking appliance to enter the calibration mode according to the third instruction, the method further includes: A first instruction is sent to the cooker, where the first instruction is used to instruct the cooker to enter the calibration mode.

11. The method according to claim 7, characterized in that In the calibration mode, after sending the calibration data to the cooker, the method further comprises: acquiring a fourth instruction, wherein the fourth instruction is used to instruct the cooking appliance to exit the calibration mode; According to the fourth instruction, the cooking appliance is controlled to exit the calibration mode and enter the non-calibration mode.

12. The method according to claim 11, characterized in that After obtaining the fourth instruction, the method further includes: A second instruction is sent to the cooker, where the second instruction is used to instruct the cooker to exit the calibration mode and enter the non-calibration mode.

13. A cookware, comprising: A first temperature detection device (111), a signal processing device (122) and a first transmission device (123), wherein the first temperature detection device (111) is connected to the signal processing device (122) and the first transmission device (123); characterized in that: The signal processing device (122) comprises: a signal preprocessing module (1220), a calibration module (1224), a storage module (1225) and a control module (1226); the signal preprocessing module (1220) is connected between the first temperature detection device (111) and the calibration module (1224); the calibration module (1224) is also connected to the first transmission device (123); the storage module (1225) is connected in parallel to the calibration module (1224); and the control module is connected between the calibration module (1224) and the first transmission device (123); The first temperature detection device (111) is used to detect the temperature of the pot or the food in the pot, obtain a first temperature signal, and transmit the first temperature signal to the signal preprocessing module (1220); The signal preprocessing module (1220) is used to preprocess the first temperature signal to obtain a preprocessed temperature signal, and output the preprocessed temperature signal to the calibration module (1224); The storage module (1225) is used to store calibration data, wherein the calibration data is the difference between the temperature signal preprocessed in the calibration mode and the calibration temperature; wherein, if the first temperature signal is the temperature of the cookware, the calibration temperature is the temperature of the cookware; if the first temperature signal is the temperature of the food in the cookware, the calibration temperature is the temperature of the food in the cookware; The calibration module (1224) is used to read the calibration data stored in the storage module (1225) in a non-calibration mode, obtain a calibrated temperature signal based on the pre-processed temperature signal and the calibration data, and output the calibrated temperature signal to the control module; and is also used to output the pre-processed temperature signal to the control module in a calibration mode; The control module is used to obtain a first instruction, control the cooker to enter a calibration mode, and in the calibration mode, output the received pre-processed temperature signal to the first transmission device (123), and output the received calibration data to the storage module (1225); and is also used to obtain a second instruction, control the cooker to exit the calibration mode and enter a non-calibration mode, and in the non-calibration mode, output the received calibrated temperature signal to the first transmission device (123); The first transmission device (123) is used to send the pre-processed temperature signal to the second transmission device (211) in the calibration mode, receive the calibration data sent by the second transmission device (211), and output the calibration data to the control module; and is also used to send the calibrated temperature signal to the second transmission device (211) in the non-calibration mode.

14. The cookware according to claim 13, characterized in that: The first temperature signal is a temperature analog signal, and the signal preprocessing module (1220) comprises: a signal amplification module (1221), a filtering module (1222), and an analog-to-digital A / D conversion module (1223), wherein the signal amplification module (1221) is connected between the first temperature detection device (111) and the filtering module (1222), and the A / D conversion module (1223) is connected between the filtering module (1222) and the calibration module (1224); The signal amplification module (1221) is used to amplify the temperature analog signal to obtain an amplified temperature analog signal; The filtering module (1222) is used to filter the amplified temperature analog signal to obtain the filtered temperature analog signal; The A / D conversion module (1223) is used to perform A / D conversion on the filtered temperature analog signal to obtain a temperature digital signal, and output the temperature digital signal to the calibration module (1224).

15. The cookware according to claim 13, characterized in that: The storage module (1225) comprises: an electrically erasable programmable read-only memory (EEPROM); and / or the first temperature detection device (111) is a thermocouple.

16. The cookware according to claim 13, characterized in that: The first transmission device (123) and the second transmission device (211) are connected by wire and / or wirelessly.

17. The cookware according to claim 13, characterized in that: The cookware comprises: a cooker body (110) and a handle (120) mounted on the cooker body (110); the first temperature detection device (111) is arranged on the inner side of the bottom of the cooker body (110); and the signal processing device (122) and the first transmission device (123) are embedded in the handle (120).

18. A cooking utensil, characterized in that: include: A second transmission device (211) and a controller (212); the second transmission device (211) is electrically connected to the controller (212); The second transmission device (211) is used to receive, in a calibration mode, a temperature signal obtained by preprocessing a first temperature signal sent by the first transmission device (123) on the cookware, and send the preprocessed temperature signal to the controller (212); and to receive calibration data sent by the controller (212), and send the calibration data to the first transmission device (123), wherein the calibration data indicates a difference between the preprocessed temperature signal in the calibration mode and the calibration temperature; and is also used to receive, in a non-calibration mode, a calibrated temperature signal sent by the first transmission device (123) on the cookware; The controller (212) is used to obtain a third instruction to control the cooking utensil to enter a calibration mode, in which the calibration data is obtained according to the pre-processed temperature signal and the calibration temperature; wherein, if the first temperature signal is the temperature of the pot, the calibration temperature is the temperature of the pot; if the first temperature signal is the temperature of the food in the pot, the calibration temperature is the temperature of the food in the pot; and is also used to obtain a fourth instruction to control the cooking utensil to exit the calibration mode and enter a non-calibration mode, in which the working parameters of the cooking utensil are controlled according to the calibrated temperature signal.

19. The cooking appliance according to claim 18, characterized in that The controller (212) is also electrically connected to a second temperature detection device (213), and the calibration temperature is obtained by the second temperature detection device (213); The second temperature detection device (213) is used to periodically detect the temperature of the pot or the food in the pot in a calibration mode, obtain at least one second temperature signal, and send the at least one second temperature signal to the controller (212); The controller (212) is used for, in a calibration mode, obtaining a sub-calibration data according to the second temperature signal and the preprocessed temperature signal each time the second temperature signal is received, and obtaining the calibration data according to at least one sub-calibration data.

20. The cooking appliance according to claim 18, characterized in that When obtaining the calibration data according to at least one sub-calibration data, the controller (212) is specifically configured to: An average value of at least one sub-calibration data is calculated, the average value being the calibration data.

21. The cooking appliance according to claim 18, characterized in that The second transmission device (211) and the first transmission device (123) are connected by wire and / or wirelessly.

22. The cooking appliance according to claim 18, characterized in that The controller (212) is further configured to control the second transmission device (211) according to the third instruction so that it sends a first instruction to the cookware, and to control the second transmission device (211) according to the fourth instruction so that it sends a second instruction to the cookware, wherein the first instruction is used to instruct the cookware to enter the calibration mode, and the second instruction is used to instruct the cookware to exit the calibration mode and enter a non-calibration mode; The second transmission device (211) is further used to send the first instruction and the second instruction to the cooker.

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