WO2022242267A1 - Appareil de cuisson et procédé de commande de fonctionnement pour celui-ci, appareil de commande et support de stockage lisible - Google Patents

Appareil de cuisson et procédé de commande de fonctionnement pour celui-ci, appareil de commande et support de stockage lisible Download PDF

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Publication number
WO2022242267A1
WO2022242267A1 PCT/CN2022/078524 CN2022078524W WO2022242267A1 WO 2022242267 A1 WO2022242267 A1 WO 2022242267A1 CN 2022078524 W CN2022078524 W CN 2022078524W WO 2022242267 A1 WO2022242267 A1 WO 2022242267A1
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WIPO (PCT)
Prior art keywords
light
light detection
signal
cooking
storage
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PCT/CN2022/078524
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English (en)
Chinese (zh)
Inventor
付厚潮
郭雄伟
杨保民
王天水
区达理
徐尧
何新华
吴育权
李家孔
张建华
Original Assignee
佛山市顺德区美的电热电器制造有限公司
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Priority claimed from CN202110554361.0A external-priority patent/CN115363405B/zh
Priority claimed from CN202110552694.XA external-priority patent/CN115363426A/zh
Application filed by 佛山市顺德区美的电热电器制造有限公司 filed Critical 佛山市顺德区美的电热电器制造有限公司
Publication of WO2022242267A1 publication Critical patent/WO2022242267A1/fr

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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
    • 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

Definitions

  • the present application relates to the technical field of household electrical appliances, in particular to a cooking appliance and its operation control method, control device and computer-readable storage medium.
  • cooking utensils are widely used, especially cooking utensils with cooking functions. Most of the cooking utensils with cooking function generally have an automatic cooking function. The user puts ingredients or a liner containing ingredients into the appliance, and the appliance can automatically cook the ingredients.
  • the current cooking utensils do not automatically detect the placement status of the ingredients, inner tanks and other materials before cooking.
  • the inner tanks of cooking utensils are equipped with liquid storage tanks such as water tanks, but current cooking utensils generally cannot The state of the placed water tank and other liquid storage tanks is automatically detected, which can easily lead to unsatisfactory cooking needs of users.
  • the main purpose of the present application is to provide an operation control method, aiming at effectively detecting the state of the material in the cooking appliance and the state of the liquid storage tank, so as to meet the cooking needs of the user.
  • the present application provides an operation control method of a cooking appliance, the cooking appliance includes a storage box and a detection device corresponding to the storage box, and the operation control method includes the following steps:
  • the cooking appliance is controlled to perform a cooking operation.
  • the storage box includes a light-transmitting part
  • the detection device includes a light detection device corresponding to the light-transmitting part
  • the detection signal includes a light detection signal
  • the determination according to the detection signal The step of the storage status information of the cooking appliance includes:
  • the storage status information is determined according to the light detection signal.
  • the light detection device includes a first light detection module
  • the light transmission part includes a first light transmission part corresponding to the first light detection module
  • the storage status information includes the The placement state information of the storage box
  • the step of determining the storage state information according to the light detection signal includes:
  • the first light detection signal is a signal detected by the first light detection module
  • the placement state information of the storage bin is determined according to the first size relationship.
  • the first light-transmitting part is provided with a total reflection prism, and the step of determining the placement state information of the storage box according to the first size relationship includes:
  • determining the placement state information of the storage box is that the storage box is not placed on the cooking appliance ;
  • the storage box is placed in the cooking on the appliance.
  • the photodetection device further includes a second photodetection module, the second photodetection module is spaced apart from the first photodetection module, and the light-transmitting part further includes a
  • the detection module corresponds to the second light-transmitting part
  • the storage state information also includes the material storage state information of the storage box, and the determination of the storage state information of the storage box according to the first size relationship After the steps, also include:
  • the storage state information is that the storage box has been placed on the cooking appliance, determine a second magnitude relationship between the second light detection signal and a second set signal threshold; the second light detection The signal is a signal detected by the second photodetection module;
  • the material placement state information is determined according to the second size relationship.
  • the deviation between the second set signal threshold and the first set signal threshold is greater than or equal to a preset value.
  • the material placement status information includes first status information, the first status information is information about the existence or non-existence of materials in the storage box, and the determined according to the second size relationship
  • the steps to describe the material placement status information include:
  • the second size relationship matches the set size relationship corresponding to the storage box, it is determined that the first state information is that there is material in the storage box;
  • the second size relationship does not match the set size relationship, it is determined that the first status information is that there is no material in the storage bin.
  • the step of determining the material placement status information according to the second size relationship it further includes:
  • the set size relationship is determined according to the material type and the structural characteristic information.
  • the step of determining the set size relationship according to the material type and the structural feature information includes:
  • the material type is a material that can reflect light
  • the structural feature information is that the second light-transmitting part is a planar light-transmitting structure
  • the material type is a light-transmitting material
  • the structural feature information is that the second light-transmitting part is provided with a total reflection prism
  • it is determined that the set size relationship is that the second light detection signal is greater than the first 2.
  • the material placement status information further includes second status information
  • the second status information is information on the amount of materials stored in the storage box
  • the determination of the first status information is the After the step with material in the storage bin, also include:
  • the material storage quantity information is determined according to the set storage quantity.
  • the number of the second photodetection modules is multiple, and the plurality of second photodetection modules are arranged at intervals along the vertical direction, and the number of the second size relationship corresponding to the second photodetection modules is large.
  • the step of determining that the first state information is that there is no material in the storage box includes:
  • the step of obtaining the set storage capacity corresponding to the second photodetection module includes:
  • the target detection module is a second light detection module whose corresponding second size relationship matches the set size relationship;
  • the step of determining the storage amount information of the material according to the set storage amount includes:
  • the set storage volume with the largest value among the multiple set storage volumes is determined as the target storage volume, and the material storage volume information is determined as the target storage volume.
  • the step of determining the storage status information of the cooking appliance according to the detection signal it further includes:
  • the cooking appliance is controlled to stop performing the cooking operation and output a prompt message.
  • the storage status information includes the placement status information of the storage box and the storage status information of the material storage box, and the determination of the storage status of the household appliance cooking appliance according to the detection signal After the step for material status information, also include:
  • the first setting condition is that the storage box has been placed on the cooking appliance
  • the second setting condition is that there are materials in the storage box and the storage capacity of the materials is greater than or equal to the amount required for cooking. target storage capacity.
  • the present application provides a method for controlling the operation of a cooking appliance, wherein the cooking appliance includes a liquid storage tank, a first light detection module, and a second light detection module, the liquid storage tank includes a housing, and the A liquid storage chamber is provided in the housing, and the light detection device includes a first light detection module and a second light detection module, the first light detection module is set corresponding to the liquid storage chamber, and the second light detection module is corresponding to the The target area of the liquid storage tank is set, the target area is an area on the liquid storage tank outside the liquid storage cavity, and the operation control method of the cooking appliance includes the following steps:
  • the state information of the liquid storage tank is determined according to the first light detection signal and the second light detection signal.
  • the housing includes a first light-transmitting portion located in the liquid storage cavity, the first light detection module is disposed corresponding to the first light-transmitting portion, and the first light-transmitting portion is a full A reflective structure, the target area is provided with a reflective structure, and the step of determining the status information of the liquid storage tank according to the first light detection signal and the second light detection signal includes:
  • the first characteristic signal is the first reflection signal formed by the emission signal of the first photodetection module in the first light-transmitting part
  • the second characteristic signal is the emission signal of the second photodetection module.
  • the signal forms a second reflected signal in the target area.
  • the state information of the liquid storage tank includes the placement state information of the liquid storage tank and the liquid storage state information of the liquid storage tank, according to the first identification result and the second identification result
  • the step of determining the state information of the liquid storage tank includes:
  • the liquid storage state information is determined according to the first identification result.
  • a partition is provided inside the casing, and the partition divides the inside of the casing into the liquid storage chamber and the cavity, the liquid storage chamber is isolated from the cavity, and the
  • the casing also includes a second light-transmitting part corresponding to the cavity, the reflective structure in the target area includes the second light-transmitting part, and the second light-transmitting part is a total reflection structure.
  • the step of determining the placement state information as a result of the second recognition includes:
  • determining the placement state information is that the liquid storage tank is placed on the cooking appliance
  • the placement state information is that the liquid storage tank is not placed on the cooking appliance.
  • the liquid storage cavity is used for placing light-transmitting liquid
  • the liquid storage state information includes the liquid storage state information
  • the step of determining the liquid storage state information according to the first identification result include:
  • the placement status information is that the liquid storage tank is placed on the cooking appliance
  • the first identification result is that the first light detection signal has the first characteristic signal
  • determine the placement status of the liquid The information is that no liquid is placed in the liquid storage tank
  • the liquid placement state information is that the liquid storage tank has been placed with liquid.
  • the number of the first light detection modules is multiple, the number of the first light transmission parts is multiple, and the first light detection modules correspond to the first light transmission parts one by one. It is set that the first identification result includes sub-identification results corresponding to each of the first light detection modules, the liquid storage state information also includes liquid storage volume information, and the determination of the liquid storage state information is the storage After the step where the liquid tank has been placed, also include:
  • the liquid storage volume information is determined according to the plurality of sub-identification results and the set storage volume corresponding to each of the first light detection modules.
  • the intensity of the first reflected signal is greater than a first preset intensity threshold, and the intensity of the second reflected signal is greater than a second preset intensity threshold.
  • the first light detection signal is a signal generated according to the first emission signal of the first light detection module and its corresponding first reflection signal, and the identification of whether the first light detection signal is The step of having a first characteristic signal includes:
  • the first light detection signal is greater than the first set signal threshold, it is determined that the first light detection signal does not have the first characteristic signal
  • the first light detection signal is less than or equal to the first set signal threshold, it is determined that the first light detection signal has the first characteristic signal
  • the second light detection signal is generated according to the second emission signal of the second light detection module and its corresponding second reflection signal, and the identification of whether there is a second characteristic signal in the second light detection signal
  • the steps include:
  • the second light detection signal is greater than the second set signal threshold, it is determined that the second light detection signal does not have the second characteristic signal
  • the second light detection signal is less than or equal to the second set signal threshold, it is determined that the second light detection signal has the second characteristic signal.
  • the step of determining the state information of the liquid storage tank according to the first light detection signal and the second light detection signal it further includes:
  • the state information of the liquid storage tank satisfies the set cooking condition, and then the cooking appliance is controlled to perform the cooking operation;
  • the state information of the liquid storage tank does not satisfy the set cooking condition, and the cooking appliance is controlled to stop performing the cooking operation.
  • the present application also proposes a control device for a cooking appliance, which includes: a memory, a processor, and a running program stored in the memory and operable on the processor.
  • a control program when the operation control program is executed by the processor, the steps of the operation control method described in any one of the above items are implemented.
  • the present application also proposes a cooking appliance, which includes:
  • the detection device is provided corresponding to the storage box;
  • control device of the cooking appliance is connected with the detection device.
  • the storage box includes a light-transmitting part
  • the detection device includes a light detection device
  • the light-transmission part is arranged corresponding to the light detection device
  • the light detection device is connected to the cooking utensil. Control unit connection.
  • the light-transmitting part includes a total reflection prism, and when the material storage space corresponding to the light-transmission part is empty, the light emitted by the light detection device enters the total reflection prism, and a total reflection occurs. After being reflected, it is incident on the photodetection device.
  • the optical detection device includes an optical transmitter and an optical receiver, and the optical transmitter and the optical receiver are spaced apart;
  • the side of the total reflection triangular prism facing the light emitter and the light receiver as the incident surface define the direction in which the light emitter and the light receiver extend as the reference direction, and define the incident surface along the The width in the reference direction is within the range of [5mm, 9mm].
  • the distance between the light emitter and the light receiver is less than or equal to the width of the incident surface along the reference direction.
  • the photodetection device further includes a first light concentrating element and a second light concentrating element, the first light concentrating element is arranged between the light emitter and the light-transmitting part, the The second light concentrating element is disposed between the light receiver and the light transmission part.
  • the side of the first light concentrating element facing the light emitter is provided with a first inclined surface
  • the side of the second light concentrating element facing the light receiver is provided with a second inclined surface
  • the first slope and the second slope are arranged at an angle, and an angle bisector of the angle between the first slope and the second slope is located between the light emitter and the light receiver.
  • the included angle between the first slope and the second slope is within the interval [130°, 180°].
  • the cooking utensil further includes a base plate and a first light-shielding member, and both the first light-shielding member and the light detection device are arranged on the base plate;
  • the first light-shielding member is disposed around the light detection device, and the light detection device and the first light-shielding member are both located between the substrate and the light-transmitting portion; and/or,
  • the photodetection device further includes a substrate, the photodetection device is arranged on the substrate, and the distance between the substrate and the outer surface of the storage box is in the interval [10mm, 25mm].
  • the cooking utensil further includes a second shading member
  • the photodetection device further includes a light emitter and a light receiver
  • the second shading member is arranged on the substrate and located on the light emitter and between the photoreceivers.
  • the cooking utensil further includes a mounting base, the mounting base includes a bottom plate and two opposite side plates, the bottom plate is located between the light detection device and the light-transmitting part, and the bottom plate and The side plates surround and form an installation cavity, the light detection device is arranged in the installation cavity, and the bottom plate is provided with a light-transmitting area.
  • the cooking utensil includes a main body, the main body is provided with an accommodating cavity, the storage box is detachably arranged in the accommodating cavity, and the light detection device is fixedly connected with the main body .
  • the photodetection device includes at least two photodetection modules
  • the light-transmitting part includes at least two sub-light-transmitting parts
  • the light-detection modules are set in one-to-one correspondence with the sub-light-transmitting parts, at least The two photodetection modules are arranged at intervals along the vertical direction.
  • At least two of the photodetection modules include a first photodetection module and a second photodetection module
  • at least two sub-light-transmitting parts include a first light-transmitting part and a second light-transmitting part
  • the first The light-transmitting part is arranged corresponding to the first light detection module
  • the second light-transmitting part is arranged corresponding to the second light detection module
  • the first light detection module is arranged corresponding to the bottom of the storage box
  • the second light detection module is located above the first light detection module.
  • a material storage cavity is provided in the material storage box, and the cooking appliance further includes a partition, which is arranged in the material storage box and divides the material storage cavity into isolated The first cavity and the second cavity, the first cavity is located at the bottom of the storage box, the first light-transmitting part is arranged in alignment with the first cavity, and the second light-transmitting The part is set in alignment with the second cavity.
  • both the first light-transmitting part and the second light-transmitting part are total reflection structures; or,
  • the first light-transmitting part is a planar light-transmitting structure
  • the second light-transmitting part is a total reflection structure
  • the present application also proposes a computer-readable storage medium, on which an operation control program is stored, and when the operation control program is executed by a processor, the above-mentioned The steps of the operation control method.
  • An operation control method proposed by the present application is based on a storage box and a detection device corresponding to the storage box. Before cooking, the method first detects the storage status information of the cooking utensil based on the detection signal of the detection device. Cooking will only be carried out when the storage status information meets the set cooking conditions. Through the acquisition of the storage status information and the matching of the storage status information with the set cooking conditions, the status of the materials in the cooking utensils and whether they meet the cooking requirements can be effectively monitored. Detection to ensure that the storage status of the cooking utensils can match the cooking needs when cooking, so as to meet the cooking needs of users.
  • Fig. 1 is a schematic flow chart of an embodiment of the operation control method of the present application
  • FIG. 2 is a schematic flow diagram of another embodiment of the operation control method of the present application.
  • FIG. 3 is a schematic flow diagram of another embodiment of the operation control method of the present application.
  • Fig. 4 is a schematic flow chart of another embodiment of the operation control method of the present application.
  • Fig. 5 is a schematic diagram of the hardware structure involved in an embodiment of the control device of the cooking appliance of the present application
  • FIG. 6 is a schematic structural diagram of components related to the operation control method in the cooking appliance according to the embodiment of the present application.
  • Figure 7 is a top view of the assembly structure in Figure 4.
  • Fig. 8 is the structural representation of A-A section in Fig. 7;
  • Fig. 9 is a schematic structural view of the B-B section in Fig. 8.
  • Fig. 10 is the structural representation of C-C section in Fig. 8.
  • Fig. 11 is the structural representation of D-D section in Fig. 8.
  • Fig. 12 is the structural representation of E-E section among Fig. 8;
  • Fig. 13 is a schematic diagram of an enlarged structure at F in Fig. 9;
  • Fig. 14 is a schematic diagram of an enlarged structure at G in Fig. 9;
  • Fig. 15 is a schematic flowchart of an embodiment of the operation control method of the cooking appliance of the present application.
  • Fig. 16 is a schematic flowchart of another embodiment of the operation control method of the cooking appliance of the present application.
  • Fig. 17 is a schematic flowchart of another embodiment of the operation control method of the cooking appliance of the present application.
  • Fig. 18 is a schematic diagram of the hardware structure involved in an embodiment of the control device of the cooking appliance of the present application.
  • Fig. 19 is a schematic top view of an embodiment of the cooking utensil of the present application.
  • Figure 20 is a schematic structural view of the A-A cross section in Figure 19;
  • Fig. 21 is a front view of the cooking utensil in Fig. 19;
  • Fig. 22 is a schematic structural view of the B-B cross-section of the cooking utensil in Fig. 21;
  • Fig. 23 is a schematic structural view of the C-C cross-section of the cooking utensil in Fig. 21;
  • Fig. 24 is a schematic structural view of the D-D cross-section of the cooking utensil in Fig. 21 .
  • Second light detection module 7 mount 201 light emitter 71 side panels 202 light receiver 72 Bottom plate 3 Translucent part 721 Translucent area 31 first light-transmitting part 8 Partition 32 second translucent part 9 Liquid storage tank
  • the automatic cooking function of the electrical appliance will immediately execute the cooking operation after receiving the function activation instruction, and there is a problem of poor cooking effect.
  • the present application provides the above-mentioned solution, aiming at realizing the effective detection of the state of the material in the cooking appliance, so as to meet the cooking needs of the user.
  • an operation control method is proposed, which is applied to detect the state of materials inside the cooking appliance.
  • the cooking appliance can be any electrical appliance with a storage box for loading cooking materials, such as an electric rice cooker, a coffee machine, a cooking machine, a wall breaker, and the like.
  • the cooking appliance includes a storage box and a detection device corresponding to the storage box.
  • the detection device is specifically a device for detecting the loading of materials in the storage box and/or the placement of the storage box in the electrical appliance.
  • the type of detection device can be set according to the actual situation, for example, it can be one or more of light detection device, elastic detection device, image detection device, weight detection device, temperature detection device, etc., which can accurately measure the material condition.
  • the location of the detection device can be set according to the actual situation, for example, it can be arranged outside the storage box, inside the storage box, above the storage box or below the storage box.
  • the operation control method comprises the following steps:
  • Step S10 acquiring a detection signal of the detection device
  • the detection signal is specifically a characteristic signal obtained by the detection device detecting the storage condition of the cooking utensil.
  • the type of the detection signal varies with different detection devices, and may include, for example, a light detection signal, an image signal, a deformation signal of a storage box, a temperature signal, and the like.
  • the detection signal here is obtained by monitoring the transmission signal, reception signal, signal change amount, signal change rate, etc. of the detection device.
  • the detection signal acquisition method can be adapted to the different principles of the detection device for material detection. For example, when the detection device includes a signal transmitter and a signal receiver, it is necessary to monitor the signals of the two modules at the same time to obtain the detection signal here; When the detection device is an image acquisition module, the detection signal here can be obtained by directly acquiring the image signal collected by the image acquisition module.
  • step S10 may be performed after receiving an instruction to start the cooking function input by the user.
  • the storage box includes a light-transmitting part
  • the detection device includes a light detection device provided corresponding to the light-transmitting part.
  • the detection signal includes a light detection signal
  • step S10 includes: according to the light detection A signal determines the stock status information.
  • the light detection device may be an illumination sensor, or a detection component having a light emitter and a light receiver. Different states of storage of the cooking appliance result in different light detection signals in the light detection device. For example, the light detection signal is different when the material is placed and no material is placed; the light detection signal is different when the storage box is placed in the electrical appliance and not placed in the electrical appliance.
  • Step S20 determining the storage state information of the cooking appliance according to the detection signal
  • the material storage status information specifically refers to feature information representing the current material placement status of the cooking appliance.
  • the material storage state information may include material storage information of the material storage box, storage state information of the material storage box, and/or temperature information of the material in the material storage box, and the like.
  • Different detection signals correspond to different storage state information. Based on the detection principle and installation location of the detection device, the correspondence between the detection signal and the storage state information can be established in advance, and the storage state information corresponding to the current detection signal can be determined based on the correspondence. Specifically, in the corresponding relationship, different set storage state information can correspond to different set characteristic signals, and if the detection signal matches the set characteristic signal, the set storage state information corresponding to the set characteristic information can be determined It is the current storage status information of the cooking appliance.
  • the corresponding signals of the detection device when a variety of different materials are placed in the storage box and when no material is placed can be obtained as The first sample, based on the analysis of the first sample, the first characteristic signal and the second characteristic signal corresponding to when the material is placed in the storage box and when no material is placed respectively, the first state of the material storage box and the second characteristic signal A characteristic signal is associated, and the second state of no material placed in the storage box is associated with the second characteristic signal to form a first corresponding relationship. Based on this, when the detection signal matches the first characteristic signal, it can be determined that the storage state information is in the first state, and when the detection signal matches the second characteristic signal, it can be determined that the storage state information is in the second state.
  • the detection device on the basis of materials placed in the storage box, if different amounts of materials are placed in the storage box, different detection signals will be formed in the detection device.
  • the respective corresponding signals are used as the second samples, and the corresponding third characteristic signals respectively corresponding to when different amounts of materials are placed in the storage bins are obtained based on the analysis of the second samples.
  • the second corresponding relationship is formed by associating the different third characteristic signals with the material storage volumes of the corresponding material storage bins. Based on this, when there is a third characteristic signal that matches the detection signal, the storage capacity of the material in the storage box associated with the matched third characteristic signal can be determined as the storage status information.
  • different detection signals will be generated in the detection device when the storage box is placed in the specified position and not in the specified position, and then multiple times when the storage box is placed in the specified position and not in the specified position and not placed in the specified position can be obtained.
  • the signals corresponding to each time are taken as the third sample.
  • the fourth characteristic signal and the fifth characteristic signal corresponding to when the storage box is placed in the designated position and when it is not placed in the designated position are respectively obtained.
  • the storage tank is placed in the designated position. Associated with the first characteristic signal, the storage bin is not placed in the designated position and associated with the second characteristic signal to form a third corresponding relationship.
  • the detection signal matches the fourth characteristic signal, it can be determined that the storage state information is that the storage box is placed in the designated position; when the detection signal matches the fifth characteristic signal, it can be determined that the storage state information is the storage box The bin is not placed in the specified position.
  • Step S30 judging whether the storage status information meets the set cooking conditions
  • step S40 is performed; if the stored material state information does not meet the set cooking condition, then step S50 is performed.
  • the setting of the cooking condition specifically refers to the standard that the required storage conditions of the cooking utensil meet for the purpose of cooking food that meets the needs of the user.
  • the setting of the cooking conditions may specifically include the storage amount of materials required for cooking, the location requirement of the storage box, the temperature of materials required for cooking, and the like.
  • the set cooking conditions may be pre-existing system default conditions, or may be determined based on user-input parameters.
  • Set cooking conditions can vary based on the type of cooking. For example, porridge cooking and rice cooking may correspond to different set cooking conditions. Specifically, by analyzing the instructions input by the user, the cooking type required by the user can be determined, and then the corresponding pre-stored cooking conditions can be read as the set cooking conditions here.
  • Step S40 controlling the cooking appliance to perform a cooking operation.
  • Step S50 controlling the cooking appliance to stop performing the cooking operation and output prompt information.
  • the storage status information satisfies the set cooking conditions. It can be considered that the current storage status of the cooking utensils can ensure that the cooking utensils use the materials currently stored in the storage box to cook food that meets the user's needs, so cooking operations can be performed (for example, material transportation to cooking cavities or directly heating the storage box, etc.); the storage status information does not meet the set cooking conditions, it can be considered that the current storage status of the cooking utensils is difficult to ensure that the cooking utensils use the materials currently stored in the storage box to cook food that meets the user's needs, so The cooking operation is prohibited and prompt information is output to prompt the user, so that the user can adjust the storage state of the cooking appliance in time. Specifically, different storage status information can correspond to different prompt information, so that the user can accurately know the content that needs to be adjusted in the current period.
  • the prompt information may specifically include output in the form of display, sound, light, and the like.
  • the display screen of the cooking appliance can be controlled to display prompt information or push the prompt information to the user's terminal to prompt the user.
  • An operation control method proposed in an embodiment of the present application is based on a storage box and a detection device corresponding to the storage box.
  • the method detects the storage state information of the cooking appliance based on the detection signal of the detection device before cooking. , when the storage state information meets the set cooking conditions, the cooking will be carried out. Through the acquisition of the storage state information and the matching of the storage state information with the set cooking conditions, the state of the material in the cooking appliance and whether it meets the cooking requirements can be realized. Effective detection is carried out to ensure that the storage status of cooking utensils can match the cooking needs when cooking, so as to meet the cooking needs of users.
  • cooking is not performed when the storage state does not match the cooking demand, so as to avoid safety problems caused by no-load cooking, and also avoid the problem of poor cooking effect caused by insufficient materials, and further ensure that the cooking operation can be accurate to the user's cooking needs match.
  • the storage box includes a light-transmitting part
  • the detection device includes a light detection device corresponding to the light-transmission part
  • the detection signal includes a light detection signal
  • the light detection device includes a first In the light detection module
  • the light-transmitting portion includes a first light-transmitting portion corresponding to the first light detection module.
  • the storage state information includes the storage state information of the storage box. Referring to FIG. 2, the step of determining the storage state information according to the light detection signal includes:
  • Step S21 determining a first magnitude relationship between a first light detection signal and a first set signal threshold; the first light detection signal is a signal detected by the first light detection module;
  • the first light detection signal here can be obtained from the signal detected by the first light detection module obtained in real time after the cooking appliance is turned on or after receiving a setting instruction from a user.
  • the first set signal threshold is specifically preset to distinguish different states of the storage box relative to the cooking utensil (such as the state that the storage box has been placed on the cooking utensil or the state that the storage box is not placed on the cooking utensil, etc. ) corresponds to the critical value of the light detection signal detected by the first light detection module.
  • the first set signal threshold may be different according to the light characteristics of the first light transmission part and/or the signal detection characteristics of the first light detection module.
  • the first magnitude relationship specifically includes that the first light detection signal is greater than the first set signal threshold, the first light detection signal is smaller than the first set signal threshold, and the first light detection signal is equal to the first set signal threshold.
  • Step S22 determining the placement status information of the storage bin according to the first size relationship.
  • the placement state information of the storage box specifically refers to information representing the current position of the storage box relative to the cooking appliance.
  • the placement status information of the storage box includes information that the storage box has been placed on the cooking appliance, and information that the storage box is not placed on the cooking appliance.
  • Different first size relationships correspond to different placement status information of the storage bins.
  • the corresponding relationship between the first size relationship and the placement status information of the storage box may be pre-established based on the light characteristics of the first light-transmitting portion and the signal detection characteristics of the first light detection module. Based on the corresponding relationship, the current placement state information of the storage bin corresponding to the first size relationship can be determined to represent the current placement state of the storage bin on the cooking appliance.
  • the first light-transmitting portion is provided with a total reflection triangular prism.
  • the first light-transmitting part is aligned with the first light-detecting module, the light emitted by the first light-detecting module can be reflected back to the first light-detecting module under the action of the total reflection prism;
  • the detection modules are dislocated or far away from each other, the light emitted by the first light detection module cannot return to the first light detection module due to the lack of total reflection.
  • the first photodetection module cannot receive the emitted light, the corresponding detection signal is infinite; when the first photodetection module receives the emitted light, the corresponding detection signal will be close to 0 .
  • the placement state information of the storage box is that the storage box has not been placed on the If the first size relationship is that the first light detection signal is less than or equal to the first set signal threshold, then it is determined that the placement status information of the storage box is the storage box has not been placed on the cooking appliance.
  • the cooking device is provided with two storage boxes, one storage box is a rice box, used to put rice, and the other storage box is a water tank, used to put water
  • the placement status information here may include the placement status of the rice box information and the placement state information of the water tank, based on this, the first light detection signal corresponding to the rice box is defined as X1, the first light detection signal corresponding to the water tank is defined as X2, and the first set signal threshold is A, then X1> When A, it can be considered that the rice box is not placed on the cooking device. When X2>A, it can be considered that the water tank is not placed on the cooking device. When X1 ⁇ A, it can be considered that the rice box is placed on the cooking device. When X2 ⁇ A, it can be considered that the rice box is placed on the cooking device.
  • the total reflection prism has a first surface, a second surface and a third surface, the first surface is set on the outer surface of the storage box, the second surface and the The third surface vertically intersects and is located in the storage box.
  • the third surface is the outer surface of the storage box
  • the first surface and the second surface are the inner surfaces of the storage box
  • the first light detection device is arranged outside the storage box , and set corresponding to the third surface. The light emitted by the first photodetection device is vertically incident on the first surface, reflected on the second surface and the third surface in turn, and finally the reflected light enters the first photodetection device.
  • the placement state of the storage box is accurately characterized, so as to accurately identify whether the storage box of the cooking device is placed in the cooking area. on the device, so that cooking can be performed after confirming that the storage box is placed in the cooking device, so as to avoid safety risks or damage to the device caused by cooking without a load on the cooking device.
  • the photodetection device further includes a second photodetection module, the second photodetection module is spaced apart from the first photodetection module, specifically, the second photodetection module can be located in the first photodetection module A light detection module above.
  • the light-transmitting part further includes a second light-transmitting part corresponding to the second photodetection module, and the second light-transmitting part is located above the first light-transmitting part.
  • the light-transmitting structure of the second light-transmitting part and the light-transmitting structure of the first light-transmitting part can be set to be the same or different according to actual needs. Wherein, when the light-transmitting structure of the second light-transmitting part is different from that of the first light-transmitting part, in order to avoid mutual interference of detection results, a partition can be provided in the storage box to separate the space corresponding to the two sub-light-transmitting parts. separated.
  • the storage status information also includes the material placement status information of the storage box. Based on this, referring to FIG. 3, after step S22, it also includes:
  • Step S23 when the placement status information of the storage box is that the storage box has been placed on the cooking appliance, determining a second magnitude relationship between the second light detection signal and a second set signal threshold;
  • the second light detection signal is a signal detected by the second light detection module;
  • the second light detection signal here can be obtained from the signal detected by the second light detection module obtained in real time after the cooking appliance is turned on or after receiving a setting instruction from the user.
  • the first light detection signal and the second light detection signal can be Obtain simultaneously or sequentially according to actual needs.
  • the second set signal threshold is specifically the threshold value corresponding to the preset threshold used to distinguish different states of materials placed in the storage box (such as the presence of materials in the storage box, the absence of materials in the storage box, the amount of different materials stored, etc.). Second, the critical value of the light detection signal detected by the light detection module.
  • the second set signal threshold may be different according to the light characteristics of the second light transmission part and/or the signal detection characteristics of the second light detection module.
  • the deviation between the second set signal threshold and the first set signal threshold is greater than or equal to a preset value.
  • the preset value is 50, which is 50 in this embodiment, and it can also be set to 45, 80, 60, etc. according to actual conditions in other embodiments.
  • the first photodetection signal, the second photodetection signal, the first set signal threshold and the second set signal threshold are digital signals converted from the analog voltage of the photodetection device. value of the amount.
  • the setting of the preset value is beneficial to accurately identify different storage status information in the cooking appliance, so as to ensure subsequent accurate determination of whether the storage status information meets the cooking requirements.
  • the second magnitude relationship specifically includes that the second light detection signal is greater than the second set signal threshold, the second light detection signal is smaller than the second set signal threshold, and the second light detection signal is equal to the second set signal threshold.
  • Step S24 determining the material placement status information according to the second size relationship.
  • the material placement status information specifically refers to feature information representing the status of the materials placed in the current storage bin.
  • the material placement status information may include first status information and/or second status information, and the like.
  • the first state information is specifically information about the existence or non-existence of materials in the storage box
  • the second state information is specifically information about the storage amount of materials in the storage box.
  • Different second size relationships correspond to different material placement status information.
  • the corresponding relationship between the second size relationship and the material placement state information may be pre-established based on the light characteristics of the second light-transmitting part and the signal detection characteristics of the second light detection module. Based on the corresponding relationship, the current material placement state information corresponding to the second size relationship can be determined to represent the current material placement state in the storage box.
  • the placement state of the material in the storage box is accurately characterized, so as to accurately identify the placement state of the material in the cooking device, So that cooking can be carried out after confirming that the material placement status meets the cooking requirements, and the problem of poor cooking effect caused by too much or too little material can be avoided.
  • the material placement status information includes first status information, and the first status information is information about the existence or non-existence of materials in the storage box.
  • Step S24 includes:
  • Step S241 if the second size relationship matches the set size relationship corresponding to the material storage box, then determine that the first status information is that there are materials in the material storage box;
  • Step S242 if the second size relationship does not match the set size relationship, then determine that the first status information is that there is no material in the storage box.
  • the setting size relationship specifically refers to the size relationship between the second light detection signal and the second set signal threshold when there is material in the preset storage box, which can be pre-set according to the second light detection module.
  • the signal detection characteristics, the characteristics of the materials stored in the storage box, the optical characteristics of the light-transmitting part, etc. are determined.
  • the set size relationship may also refer to the size relationship between the second light detection signal and the second set signal threshold when there is no material in the preset storage bin. If the second size relationship matches the set size relationship, it is determined that the first status information is that there is no material in the storage box, and if the second size relationship does not match the set size relationship, it is determined that the first status information is that there is material in the storage box.
  • step S24 it also includes:
  • Step S01 obtaining the type of material stored in the storage box and the structural feature information of the second light-transmitting part
  • the material type can be classified according to the optical characteristics of the material. Different material types have different light guiding effects (such as reflection, transmission, etc.) on the light irradiated on its surface. Specifically, in this embodiment, the material type specifically includes materials that can reflect light (such as rice, soybeans, flour, etc.) and light-transmitting materials (such as water, clear soup, Sprite, etc.). It should be noted that the refractive index of the light-transmitting material is greater than the refractive index of the second light-transmitting portion.
  • the structural feature information specifically refers to the feature information of the structure of the light guiding function (such as reflection, projection, etc.) of the light path emitted by the second light detection module on the second light-transmitting part.
  • the structural feature information and material type can be pre-stored parameters, or parameters input by the user based on actual usage conditions.
  • Step S02 determining the set size relationship according to the material type and the structural characteristic information.
  • Different material types and different structural feature information correspond to different set size relationships. Specifically, when the material type is a material that can reflect light, and the structural characteristic information is that the second light-transmitting part is a planar light-transmitting structure, it is determined that the set size relationship is the second light detection The signal is smaller than the second set signal threshold; when the material type is a light-transmitting material and the structural feature information is that the second light-transmitting part is provided with a total reflection prism, it is determined that the set size relationship is The second light detection signal is greater than the second set signal threshold.
  • the total reflection prism in this embodiment has the same structure as the total reflection prism in the above embodiment, and will not be repeated here.
  • the planar light-transmitting structure specifically refers to a light-transmitting structure having two oppositely arranged light-transmitting planes, and when light hits one light-transmitting plane, it can be emitted from the other light-transmitting plane.
  • the second light-transmitting part is a planar light-transmitting structure, and the storage box is used for materials that can reflect light, based on the placement state information of the storage box, it is confirmed that the second light-transmitting part is aligned with the second photodetection module , if there is a light-reflecting material in the space of the storage box where the second light-transmitting part is aligned, the light emitted by the second light detection module will be projected into the corresponding internal space of the storage box after entering the second light-transmitting part , the material that can reflect light in the inner space will emit light back to the second light-transmitting part, and project it back into the second light-detecting module through the second light-transmitting part; if the storage material in the second light-transmitting part There is no material that can reflect light in the space of the box.
  • the light emitted by the second light detection module will be projected into the corresponding internal space of the storage box after it is incident on the second light-transmitting part. Since the internal space is all air, the light cannot be detected. reflection, the light cannot return to the second photodetection module.
  • the second light-transmitting part is a total reflection prism and the storage box is used to load light-transmitting materials, based on the placement status information of the storage box to confirm the alignment of the second light-transmitting part and the second photodetection module, if There is a light-transmitting material in the space of the storage box opposite the second light-transmitting part.
  • the light emitted by the second light detection module After the light emitted by the second light detection module is incident on the second light-transmitting part, the light is transmitted from the inside of the second light-transmitting part of the light-thinning medium to the In the light-transmitting material used as an optically dense medium, since the light-transmitting material can transmit light, the light cannot return to the second light detection module; if there is no light-transmitting material in the space of the storage box opposite the second light-transmitting part, the second After the light emitted by the second light detection module enters the second light-transmitting part, the light is transmitted from the second light-transmitting part of the light-dense medium into the air as the light-thinning medium, and the light is totally reflected back to the second light detection module .
  • the corresponding detection signal when the second photodetection module cannot receive the emitted light, the corresponding detection signal is infinite; when the second photodetection module receives the emitted light, the corresponding detection signal will be close to 0 .
  • the material type is a material that can reflect light
  • the structural feature information is that the second light-transmitting part is a planar light-transmitting structure
  • the second light detection signal can be used to be smaller than the second set signal threshold Indicating the presence of materials in the storage box; when the type of the material is a light-transmitting material and the structural feature information is that the second light-transmitting part is provided with a total reflection prism, the second light detection signal can be greater than the second set A certain signal threshold indicates the presence of material in the storage bin.
  • the cooking device is provided with two storage boxes, one storage box is a rice box, which is used to put rice, and the other storage box is a water tank, which is used to put water, then the material placement status information here may include rice placement status information and water placement status information, the second light-transmitting part of the rice box is a plane light-transmitting structure, and the second light-transmitting part of the water tank is a total reflection prism.
  • the second light detection signal corresponding to the rice box is defined as Y1
  • the second light detection signal corresponding to the water tank is defined as Y2, and the second set signal threshold is B, then when Y1>B, it can be considered that there is no rice placed in the inner space of the rice box corresponding to the second light-transmitting part, and when Y1 ⁇ B, it can be considered It is considered that rice is placed in the inner space of the rice box corresponding to the second light-transmitting part; X2>B can be considered that there is water in the inner space of the water tank corresponding to the second light-transmitting part; No water is placed in the inner space of the water tank.
  • different storage boxes correspond to different set size relationships for determining whether there is material in the storage box, wherein, combining the structural characteristics of the second light-transmitting part in the storage box and the The set size relationship is determined based on the material stored in the box, so that based on the set size relationship, the state of whether there is material stored in the storage box can be accurately judged.
  • the material placement status information also includes second status information, and after determining that the first status information is that there are materials in the storage box (such as step S241), it also includes:
  • Step S25 obtaining the set storage capacity corresponding to the second light detection module
  • the set storage volume specifically refers to the storage volume of the material in the storage box when the material in the storage box reaches the height of the second light detection module.
  • the corresponding relationship between the second light detection module and its set storage volume can be determined in advance according to the capacity of the storage box, the height set by the second light detection module, etc., and stored in the memory.
  • Step S26 determining the storage amount information of the material according to the set storage amount.
  • the acquired set storage quantity is used as material storage quantity information.
  • the number of the second photodetection modules is multiple, and the plurality of second photodetection modules are arranged at intervals along the vertical direction, and the corresponding second size of the second photodetection modules is The number of relationships is multiple. Based on this, the second light detection signal corresponding to each second detection module can characterize whether there is material in the corresponding internal space of the storage box.
  • Step S241 includes: if at least one of the plurality of second size relationships The second size relationship matches the set size relationship, then it is determined that the first status information is that there is material in the storage box; step S242 includes: if a plurality of the second size relationships are all the same as the set size relationship If they do not match, it is determined that the first status information is that there is no material in the storage bin. Based on this, if there is material in the storage area corresponding to the second light detection module of any height, it is considered that there is material in the storage box; If there is material, it can be considered that there is no material stored in the storage box.
  • step S25 includes: determining a target detection module among a plurality of the second light detection modules; the target detection module is a second light detection module whose corresponding second size relationship matches the set size relationship module; acquire the set storage capacity corresponding to the target detection module.
  • the material storage area of the material storage box corresponding to the second light detection module will be used as a target detection module when there is material.
  • one or more targets may exist depending on the amount of material stored in the storage box. detection module.
  • all of the multiple set storage quantities may be used as the material storage quantity information, or one of them may be selected as the material storage quantity information.
  • the number of the set storage amount is one, then determine the information on the material storage amount as the set storage amount;
  • the set storage amount with the largest numerical value among the fixed storage amounts is the target storage amount, and the information about the material storage amount is determined as the target storage amount.
  • multiple second detection modules in different positions and their corresponding second detection signals are used to characterize the different storage volumes of materials in the storage box, so as to achieve effective monitoring of the storage volume of materials in the storage box.
  • the detection can ensure that the follow-up can judge whether the amount of materials placed meets the cooking requirements based on the detection results, and cook only when the amount of materials stored meets the cooking requirements, so as to ensure the cooking effect.
  • the second photodetection module and its corresponding second light-transmitting part in this embodiment may also be provided, and The material placement status information of the storage bin can be determined according to the related solution of the second light detection module mentioned in this embodiment.
  • the storage status information includes the placement status information of the storage box and the storage status information of the material of the storage box.
  • step S30 includes:
  • Step S31 judging whether the placement state information of the material storage box satisfies the first set condition, and whether the material placement state information satisfies the second set condition;
  • the first setting condition is that the storage box has been placed on the cooking appliance
  • the second setting condition is that there are materials in the storage box and the storage capacity of the materials is greater than or equal to the amount required for cooking. target storage capacity.
  • step S32 When the placement state information of the material storage box meets the first set condition and the material placement state information meets the second set condition, step S32 is executed; when the placement state information of the material storage box does not meet the first set condition When a condition is set, or when the material placement status information does not satisfy the second set condition, step S33 is executed. Step S32, determining that the stored material status information satisfies the set cooking conditions;
  • Step S33 determining that the storage status information does not meet the set cooking conditions.
  • the target storage amount required for cooking specifically refers to the amount of material that needs to be placed in the storage box when the amount or shape of the food obtained by the cooking operation can meet the user's demand.
  • the target storage capacity may be automatically identified based on the cooking type used for selection, or may be obtained directly from parameters input by the user, or may be parameters stored by default.
  • the storage box is used to store rice.
  • the target storage volume can be 150ml; when the user needs to cook rice, the target storage volume can be 300ml. Based on this, cooking porridge will only start when the storage box is placed in the cooking utensil and the amount of rice stored in it is at least 150ml, otherwise the porridge cooking operation will not be performed; when the storage box is placed in the cooking utensil , and the amount of rice stored in it is at least 300ml, it will start cooking, otherwise the cooking operation of cooking rice will not be performed.
  • the storage box is used to store water.
  • the target storage volume can be 400ml; when the user needs to cook rice, the target storage volume can be 330ml. Based on this, when the storage box is placed in the cooking utensil and the amount of water stored in it is at least 400ml, the cooking of porridge will start, otherwise the cooking operation of porridge will not be performed; when the storage box is placed in the cooking utensil, And when the amount of rice stored in it is at least 330ml, the cooking will start, otherwise the cooking operation of cooking will not be performed.
  • the storage box includes a first storage box and a second storage box, the first storage box is used to place food (such as rice, beans, fruits, etc.), and the second storage box is used to place water , soup, etc.
  • the materials stored in the two material storage boxes are materials that need to be coordinated with cooking. Based on this, when the placement status information of the storage bins corresponding to the two storage bins both meet the first setting condition, and the material placement status information corresponding to the two storage bins both meet the second setting condition, the storage condition is determined.
  • the material state information meets the set cooking conditions; otherwise, it is determined that the material storage state information does not meet the set cooking conditions.
  • the target storage capacity corresponding to the water tank may be determined according to the target storage capacity of the rice box.
  • one storage box is used for rice, and the other storage box is used for water.
  • Porridge cooking and rice cooking have different requirements for rice volume and water volume.
  • the target storage volume of rice can be 150ml
  • water The target storage volume can be 400ml. Both the rice storage box and the water storage box are placed in the cooking appliance, and the amount of rice stored in one storage box is at least 150ml, and the rice storage box is stored in one storage box.
  • the porridge cooking operation will not start until the volume is at least 400ml; otherwise, the porridge cooking operation will not be performed;
  • the storage box for storing rice and water is placed in the cooking appliance, and the amount of rice stored in one storage box is at least 300ml, and the amount of rice stored in one storage box is at least 330ml before cooking starts. , otherwise the cooking operation of cooking rice will not be performed.
  • the cooking appliance through the above method, it is ensured that all the storage boxes are placed in the cooking appliance, and the cooking starts only when there are enough materials in the storage box to meet the cooking requirements, so as to ensure that the cooking appliance can achieve effective cooking and finally cook
  • the amount and shape of the obtained food can meet the needs of users, so as to further improve the cooking effect of the cooking utensil.
  • the storage box of each material is placed on the cooking appliance and the storage amount reaches the corresponding target storage amount before starting cooking, so as to ensure that the cooking appliance can achieve effective cooking and through different
  • the final quantity and form of the materials combined with cooking can meet the needs of users, so as to further improve the cooking effect of cooking utensils.
  • the embodiment of the present application also provides a control device for a cooking appliance, which is used to control the cooking process of the cooking appliance.
  • the control device of the cooking appliance can be built in the cooking appliance, or can be arranged on the outside of the cooking appliance independently.
  • the control device of the cooking appliance includes: a processor 1001 (such as a CPU), a memory 1002 , a data interface 1003 and the like.
  • the memory 1002 can be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory.
  • the memory 1002 may also be a storage device independent of the foregoing processor 1001 .
  • Both the memory 1002 and the data interface 1003 are connected to the processor 1001 .
  • the processor 1001 can access the detection device through the data interface 1003, so as to obtain the detection signal of the detection device.
  • FIG. 5 does not constitute a limitation to the device, and may include more or less components than shown in the figure, or combine some components, or arrange different components.
  • the memory 1002 as a computer-readable storage medium may include an operation control program.
  • the processor 1001 can be used to call the operation control program stored in the memory 1002 and execute the relevant steps of the operation control method in any of the above embodiments.
  • a cooking appliance which can be any electrical appliance with a storage box 1 for loading cooking materials, such as a rice cooker, a coffee machine, a cooking machine, a wall breaker, and the like.
  • the cooking appliance specifically includes a storage box 1 , a detection device 2 and a control device (not shown) of the cooking appliance in the above embodiments.
  • the detection device 2 is arranged corresponding to the material storage box 1, and the detection device 2 is connected with the control device of the cooking utensil, and the control device of the cooking utensil can read the detection signal of the detection device 2.
  • the detection device 2 is specifically a device for detecting the condition of the material storage box 1 loaded with materials and/or the condition of the storage box 1 placed in the electrical appliance.
  • the type of detection device 2 can be set according to the actual situation, for example, it can be one or more of optical detection device, elastic detection device, image detection device 2, weight detection device 2, temperature detection device 2, etc., which can accurately monitor the material condition. Measuring device.
  • the number of detection devices 2 can also be set according to the actual situation, and can be 1, 2, 5 or 6, etc.
  • one storage box 1 is correspondingly provided with at least two detection devices 2, one for detecting the placement status information of the storage box 1, and the other for detecting the material storage capacity of the storage box 1 information.
  • the detection device 2 is arranged outside the material storage box 1 . In other embodiments, the detection device 2 can also be located inside the material storage box 1 , above the material storage box 1 or below the material storage box 1 according to the actual situation.
  • This embodiment proposes a cooking appliance.
  • a detection device 2 is provided corresponding to the material storage box 1, and the control device of the cooking appliance is connected to the detection device 2, so that the control device of the cooking appliance can be based on the detection of the detection device 2.
  • the signal realizes automatic and accurate identification of the material condition before cooking according to the relevant process in the above operation control method, and ensures that the cooking operation is started only when the material state meets the cooking requirements, so as to effectively improve the cooking effect of the cooking utensils.
  • the material storage box 1 includes a light-transmitting portion 3, the detection device 2 includes a light detection device, the light-transmitting portion 3 is provided correspondingly to the light detection device, and the light detection device is connected to the cooking utensil. connected to the control unit.
  • the entire box body of the material storage box 1 is made of a transparent material (for example, acrylonitrile-styrene copolymer).
  • the material storage box 1 may also be a partially transparent structure, and only need to install the transparent part 3 at the position to be detected, while other positions do not need to be provided with the transparent part 3 .
  • the light detection device may be an illumination sensor, or a detection component having a light emitter 201 and a light receiver 202 .
  • the light detection device may include an infrared light emitter 201 and an infrared light receiver 202 .
  • Different storage states of cooking utensils (such as whether the storage box 1 is placed or not, whether the storage box 1 is filled with materials, and whether the storage box 1 is filled with different materials) will form different light detection signals in the light detection device.
  • the light detection device is a light sensor
  • the illuminance detected by the light sensor is relatively small when the storage box 1 stores materials;
  • the light intensity detected by the time light sensor is relatively large.
  • the differences in the light detection signals formed in the light detection device are combined, so that through the light detection signal Accurate identification and detection of cooking utensil storage can be realized.
  • the light-transmitting part 3 includes a total reflection prism, and when the material storage space corresponding to the light-transmitting part 3 is empty, the light emitted by the light detection device It is incident into the total reflection triangular prism, undergoes total reflection, and then enters the light detection device.
  • the light detection device includes a light emitter 201 and a light receiver 202. When the light detection device is aligned with the total reflection prism, the light emitted by the light emitter 201 enters the total reflection prism.
  • the air in the storage box 1 is an optically sparse medium
  • the light-transmitting part 3 is a solid structure and belongs to an optically dense medium, so the incident light in the total reflection prism The light will be totally reflected, and the reflected light path will enter into the light receiver 202 to form a corresponding signal.
  • the optical detection device and the total reflection prism of the storage box 1 are not aligned or the storage box 1 is placed with a light-transmitting material (such as water, etc.) to form an optically dense medium
  • a light-transmitting material such as water, etc.
  • the optical detection device includes an optical transmitter 201 and an optical receiver 202, and the optical transmitter 201 and the optical receiver 202 are arranged at intervals; the defined The side of the total reflection triangular prism facing the light emitter 201 and the light receiver 202 is an incident surface, and the direction in which the light emitter 201 and the light receiver 202 are extended is defined as a reference direction, and the incident surface
  • the width d1 along the reference direction is within the range of [5 mm, 9 mm].
  • the total reflection prism has a first surface, a second surface and a third surface, the first surface is arranged on the outer surface of the storage box 1, and the second surface and the third surface are vertical Intersect and are located in the storage box 1, the second surface has a first side and a second side opposite to each other, the third surface has a third side and a fourth side opposite to each other, the first side is connected to the third side.
  • the third surface is the outer surface of the material storage box 1
  • the first surface and the second surface are the inner surfaces of the material storage box 1
  • the optical detection device is arranged outside the material storage box 1 and spaced apart from the third surface.
  • the width d1 of the incident surface along the reference direction can be 7mm; in other embodiments, the width d1 of the incident surface along the reference direction can also be selected as 6mm, 5.5mm, 7.5mm, 8mm, 8.5mm, etc.
  • the width d1 of the incident surface along the reference direction is too small, the incident light and the reflected light in the total reflection prism are likely to interact with each other, resulting in inaccurate detection results of the storage state information, while the incident surface When the width d1 along the reference direction is too large, the light is likely to diverge and cause light loss, which affects the accuracy of the detection result of the storage state information. Based on this, controlling the width d1 of the incident surface along the reference direction within the range of [5mm, 9mm] is beneficial to ensure accurate storage status information of the cooking appliance based on the light detection signal.
  • the distance d2 between the light transmitter 201 and the light receiver 202 is less than or equal to the width d1 of the incident surface along the reference direction, so as to ensure that the light receiver 202 can effectively detect the reflection
  • the returned light further ensures the accuracy of detection of storage status information.
  • the light detection device further includes a light emitter 201, a light receiver 202, a first light concentrating element 41 and a second light concentrating element 42, the first light concentrating element A light concentrating element 41 is disposed between the light emitter 201 and the light transmitting portion 3 , and the second light concentrating element 42 is disposed between the light receiver 202 and the light transmitting portion 3 .
  • the light emitter 201 emits light to the light-transmitting part 3, under the action of the first light-gathering member 41, it can ensure that the light can enter the light-transmitting part 3, especially When the light-transmitting part 3 is a total reflection prism, it can ensure that the light can be accurately incident on the total reflection prism at an incident angle of 90 degrees; and under the action of the second light concentrating member 42, it can ensure that the reflected light can be directed toward the light receiving
  • the light receiver 202 is deflected, and the light receiver 202 can effectively collect the reflected light. Based on this, the arrangement of the first light concentrating member 41 and the second light concentrating member 42 is beneficial to further ensure that the light detection signal detected by the light detection device can accurately reflect the state of the material.
  • the first light concentrating member 41 is provided with a first slope on the side facing the light emitter 201
  • the second light concentrating member 42 is provided with a side facing the light receiver 202 .
  • One side is provided with a second slope
  • the first slope and the second slope form an angle
  • the angle bisector of the angle between the first slope and the second slope is located between the light emitter 201 and the second slope. between the light receivers 202 .
  • the light emitted by the light emitter 201 is refracted under the action of the first inclined surface and then enters the light-transmitting part 3 from the first light-concentrating member 41, and the light emitted from the light-transmitting part 3 enters the second light-condensing member 42 and passes through the second inclined surface. Refraction occurs under the action of , and then enters the light receiver 202.
  • the angle ⁇ between the first slope and the second slope is within the interval [130°, 180°]. In this embodiment, the angle ⁇ between the first slope and the second slope is 150°. In other embodiments, the angle ⁇ between the first slope and the second slope can also be selected as 135°, 140°, 155° or 160° according to actual needs.
  • the angle ⁇ between the first slope and the second slope is too small, the refracted light will further diverge and cannot be incident on the light-transmitting part 3 or the light receiver 202, and the angle between the first slope and the second slope If the angle ⁇ is too large, the refracted light will converge excessively, causing the incident light and reflected light to interact with each other. Therefore, setting the angle ⁇ between the first slope and the second slope within [130°, 180°] can ensure effective light concentration. To ensure the accuracy of detection of storage status information.
  • the cooking utensil further includes a substrate 6 and a first shading member 51, and both the first shading member 51 and the light detection device are arranged on the substrate 6.
  • the first light-shielding member 51 is disposed around the light detection device, and the light detection device and the first light-shielding member 51 are both located between the substrate 6 and the light-transmitting portion 3 .
  • the substrate 6 is specifically a PCB board for performing data processing on the light detection device.
  • the substrate 6 can also be configured as a plate-shaped structure without data processing function according to actual needs.
  • both the phototransmitter 201 and the photoreceiver 202 are arranged in the opening cavity formed by the substrate 6 and the first light shielding member 51, and the opening of the cavity can be
  • the light-transmitting part 3 is attached, and the installation seat 7 between the light-transmitting part 3 and the photodetection device can also be attached to form a closed cavity to realize light shielding.
  • the light emitted or received by the light detection device will not leak to the external environment under the action of the first light shielding member 51, and the light of the external environment will not affect the signal of the light detection device under the action of the first light shielding member 51. measurement, which is beneficial to ensure the accuracy of the storage status information determined based on the light detection signal.
  • the cooking utensil includes a second shading member 52 in addition to the first shading member 51 , and the light detection device also includes a light emitter 201 and a light receiver 202 , the second light shielding member 52 is disposed on the substrate 6 and located between the light emitter 201 and the light receiver 202 .
  • the second light shielding member 52 Through the setting of the second light shielding member 52 , the light emitted by the light transmitter 201 and the light reflected to the light receiver 202 will not interfere with each other, thereby further ensuring the accuracy of the storage status information represented by the light detection signal.
  • the distance d3 between the substrate 6 and the outer surface of the storage box 1 is located in the interval [10 mm, 25 mm].
  • the distance d3 between the substrate 6 and the outer surface of the material storage box 1 (such as the first surface of the above-mentioned total reflection prism) is 18 mm.
  • the distance d3 between the base plate 6 and the outer surface of the material storage box 1 can also be set to 12mm, 14mm, 16mm, 20mm or 24mm according to the actual situation.
  • the distance d3 between the substrate 6 and the outer surface of the storage box 1 is too large, it is easy to cause the optical path between the light detection device and the light-transmitting part 3 to be too long, resulting in unnecessary loss of light and affecting the accuracy of detection. 1 If the distance d3 between the outer surfaces is too small, the size of the components between the substrate 6 and the light-transmitting part 3 (such as the mounting base below, the light-collecting piece above, etc.) will be too small, which will affect the performance of the light detection device (such as firm installation performance, detection accuracy, etc.). Therefore, the distance d3 between the substrate 6 and the outer surface of the material storage box 1 is located in the interval [10mm, 25mm], which can further improve the accuracy of detection of the storage state information.
  • the cooking appliance further includes a mounting base 7, the mounting base 7 includes a bottom plate 72 and two opposite side plates 71, the bottom plate 72 is located on the Between the light detection device and the light-transmitting part 3, the bottom plate 72 and the side plate 71 surround to form an installation cavity, the light detection device is arranged in the installation cavity, and the bottom plate 72 is provided with a light-transmission area 721.
  • the light-transmitting area 721 on the bottom plate 72 may be a light-transmitting hole or a light-transmitting member.
  • the bottom plate 72 may be formed with several corresponding installation grooves for installation and positioning of the light concentrating piece and/or the light shielding piece.
  • the installation cavity formed by the bottom plate 72 and the side plate 71 is an open cavity.
  • the base plate 6 can close the open cavity to form a closed accommodating cavity, and can further cooperate with the function of the shading member. The leakage of light in the installation cavity or the entry of external light into the cavity is avoided, so as to ensure that the signal detected by the light detection device can accurately represent the material state of the cooking utensil.
  • the arrangement of the installation base can facilitate the installation and fixation of the light detection device in the cooking appliance.
  • the cooking utensil includes a main body (not shown), and an accommodating cavity is arranged in the main body (not shown), and the storage box 1 is detachably arranged in the accommodating cavity.
  • the light detection device is fixedly connected with the main body (not shown). Based on this, it is convenient to take out the storage box 1 for cleaning or loading materials according to actual needs, and the light detection device is fixed on the main body (not shown), so that the state of putting in and taking out the storage box 1 can be accurately realized. identify.
  • a light detection device is provided corresponding to the bottom of the material storage box 1 , and it can accurately identify whether the material storage box 1 is properly placed in the cooking appliance based on the light detection signal.
  • the shape of the inner wall of the accommodating cavity is adapted to the shape of the outer surface of the material storage box 1 .
  • the photodetection device includes at least two photodetection modules
  • the light-transmitting part 3 includes at least two sub-light-transmitting parts
  • the photodetection module and the The light-transmitting parts are arranged in one-to-one correspondence, and the light detection modules are arranged at intervals along the vertical direction.
  • each photodetection module includes a light emitter 201 and a photoreceiver 202, and each photodetection module may also include a corresponding substrate 6, a light concentrating member and/or a light shielding member, etc., and each photodetection module
  • the relative positions and connection relationships of the various components can be referred to the above embodiments, and will not be repeated here.
  • the light-transmitting area corresponding to the light detection module is defined as a sub-light-transmitting part.
  • Each sub-light-transmitting part can be configured as the above-mentioned total reflection triangular prism or a planar light-transmitting structure according to actual needs.
  • the planar light-transmitting structure specifically means that the light-transmitting portion 3 has two oppositely disposed light-transmitting surfaces.
  • each photodetection module includes a phototransmitter 201 and a photoreceiver 202, and each photodetection module may also include a corresponding substrate 6, a light concentrating member and/or a light shielding member, etc.
  • the relative positions and connections of the components in each photodetection module can be referred to the above embodiments, which will not be repeated here.
  • the material storage box 1 is a structure made of transparent materials as a whole, the light-transmitting area corresponding to the light detection module is defined as a sub-light-transmitting part.
  • the specific position of the light detection module can be set according to the detection requirements, and the light detection module is generally fixed in the cooking utensil. If the light detection signal of the light detection module is used to identify the placement status information of the storage box 1, when the storage box 1 is placed in the cooking utensil to meet the cooking requirements, the detection module is set corresponding to the bottom of the storage box 1. If the light detection signal of the light detection module is used to identify the material storage information of the storage box 1, when the storage box 1 is placed in the cooking utensil to meet the cooking requirements, the light detection module and the middle and upper parts of the storage box 1 The areas are set correspondingly, and multiple light detection modules can be set according to the multiple different storage quantities that need to be measured.
  • At least two of the light detection modules include a first light detection module 21 and a second light detection module 22, and at least two sub-light transmission parts include a first light transmission part 31 and a second light transmission part 31. part 32, the first light-transmitting part 31 is set corresponding to the first light detection module 21, the second light-transmitting part 32 is set corresponding to the second light detection module 22, and the first light detection module 21 is arranged corresponding to the bottom of the storage box, and the second photodetection module 22 is located above the first photodetection module 21 .
  • first light-transmitting portion 31 and the second light-transmitting portion 32 can be set according to actual needs.
  • both the first light transmission part 31 and the second light transmission part 32 are total reflection triangular prisms; or, the first light transmission part 31 is a planar light transmission structure, and the second light transmission part 32 is a total reflection prism; or, the first light transmission part 31 is a total reflection prism, the second light transmission part 32 is a planar light transmission structure, and so on.
  • the first light detection signal corresponding to the first light detection module 21 can be used to identify the placement status information of the storage box; the second light detection signal corresponding to the second light detection module 22 can be used to identify the material placed in the storage box. status information.
  • the number of the second photodetection modules 22 can be set to one or more according to actual needs.
  • the number of the second photodetection modules 22 is multiple, and the plurality of second photodetection modules 22 are arranged at intervals along the vertical direction, so as to realize the monitoring of different material storage volumes in the material storage box 1. Accurate identification.
  • the positions of the corresponding N second photodetection modules 22 can be set according to the N rice quantity requirements of the cooking demand; when the material storage box 1 is used for filling water
  • the corresponding N second light detection modules 22 can be set according to the N water volume requirements of the cooking requirements, or the detection positions of the N second light detection modules 22 can be determined according to the N rice volume requirements of the cooking ratio.
  • a first light detection module 21 is set at the bottom of the storage box 1, and the height position of the material surface when the storage box 1 stores 100ml, 200ml, 300ml, and 400ml of materials is respectively provided with a second light detection module 22, so that the first light detection module 21 can detect whether the material storage box 1 is completely placed in the cooking appliance, and the multiple second light detection modules 22 can identify the specific amount of materials stored in the material storage box 1 .
  • a storage bin 1 is provided with at least two optical detection modules, so that the different material states of the storage bin 1 can be characterized based on the detection signals of different optical detection modules, further ensuring the characterization of material state information accuracy.
  • a storage chamber is provided in the storage box 1, and the cooking utensil further includes a partition 8, and the partition 8 It is arranged in the storage box 1 and separates the storage cavity into an isolated first cavity and a second cavity, the first cavity is located at the bottom of the storage box 1, and the second cavity is A light-transmitting portion 31 is disposed in alignment with the first cavity, and the second light-transmitting portion 32 is disposed in alignment with the second cavity. Specifically, the second cavity is used for placing materials.
  • the characterization results of the material state information corresponding to the first photodetection module 21 and the second photodetection module 22 can be avoided from influencing each other, ensuring that the first photodetection module 21 and the second photodetection module 22 correspond to each other.
  • the light detection signal can accurately characterize the different storage conditions in the cooking appliance.
  • the cooking appliance includes at least two of the storage boxes 1 and their corresponding light detection devices, and at least two of the storage boxes 1 include the first storage box 11 and a second material storage box 12, the first material storage box 11 is set to store materials that can reflect light (for example, rice, soybeans, red beans, wheat, etc.), and the second material storage box 12 is set to store transparent Light materials (eg, water, broth, sprite, etc.).
  • first material storage box 11 is set to store materials that can reflect light (for example, rice, soybeans, red beans, wheat, etc.)
  • the second material storage box 12 is set to store transparent Light materials (eg, water, broth, sprite, etc.).
  • the first light-transmitting part 31 of the first storage box 11 is a total reflection triangular prism
  • the second light-transmitting part 32 is a planar light-transmitting structure. Based on this, the light detection signal of the first light detection module 21 of the first storage box 11 can be used to characterize whether the first storage box 11 is placed in the cooking appliance, and the light detection signal of the second light detection module 32 of the second storage box 12 The light detection signal can be used to characterize whether there is a material in the first material storage box 11 and the storage amount of the material.
  • the first light detection module 21 corresponding to the first material storage box 11 Since the first light detection module 21 corresponding to the first material storage box 11 is fixedly installed in the cooking appliance, and the first material storage box 11 is detachable, when the first material storage box 11 is not placed in the cooking appliance, there is no first The total reflection prism of the material storage box 11 reflects the light emitted by the first sub-detection module 21, so the light emitted by the first light detection module 21 will not be reflected back to the first light detection module 21 corresponding to the first material storage box 11, The first light detection module 21 cannot detect its light reflection signal; and when the first storage box 11 is placed in the cooking utensil, its total reflection triangular prism will reflect the light emitted by its corresponding first light detection module 21, so the first The light emitted by the first photodetection module 21 corresponding to a storage bin 11 will be reflected back to the first photodetection module 21 , and the first photodetection module 21 corresponding to the first storage bin 11 can detect
  • the light emitted by the second photodetection module 22 corresponding to the first storage box 11 enters the first storage box 11 through the planar light-transmitting structure.
  • the light will be reflected to the second light detection module 22 corresponding to the first storage box 11, and the second light corresponding to the first storage box 11
  • the light will not be reflected to the second photodetection module 22 corresponding to the first storage bin 11, so based on the detection by the second photodetection module 22 corresponding to the first storage bin 11
  • the signal difference and the material status reflected by the detection signals detected by the second photodetection modules 22 corresponding to different first material storage bins 11 can realize accurate identification of the storage amount of the material in the first material storage bin 11 .
  • Both the first light-transmitting portion 31 and the first light-transmitting portion 32 of the second storage box 12 are total reflection triangular prisms.
  • the detection principle of the placement state information of the second storage box 12 by the first light detection module 21 corresponding to the second storage box 12 is the same as that of the first light detection module 21 corresponding to the first storage box 12.
  • the detection principle of the placement state information of 12 is the same, and will not be repeated here.
  • the materials stored in the second storage box 12 can transmit light
  • the second storage box 12 is located in the cooking utensil
  • the light emitted by the second photodetection module 22 corresponding to the second storage box 12 will enter into it.
  • the corresponding total reflection prism when there is no material stored in the area corresponding to the second light detection module 22 of the second storage box 12, the light will be totally reflected in the total reflection prism, and the reflected light will return to the second light detection module 22.
  • the second The light detection module 22 When light-transmitting materials are stored in the area of the second storage box 12 corresponding to the second light detection module 22, under the light-transmitting effect of the light-transmitting materials, the light will not be totally reflected in the total reflection prism, then the second The light detection module 22 will not detect the reflected light signal, so based on the difference of the detection signal of the second light detection module 22 corresponding to the second storage box 12, and the second light detection module corresponding to the different second storage box 12 The state of the material reflected by the detection signal detected at 22 can realize accurate identification of the storage volume of the material in the second storage box 12 .
  • the above-mentioned first photodetection module 21 to second photodetection module 22 are set correspondingly, so as to realize the detection of different storage boxes 1 in the cooking appliance.
  • the current cooking appliances are generally unable to automatically detect the state of the water tank and other liquid storage tanks where they are placed, resulting in unsatisfactory cooking needs of users.
  • the present application provides the above-mentioned solution, aiming at realizing the effective detection of the state of the liquid storage tank in the cooking appliance, so as to meet the cooking needs of users.
  • An embodiment of the present application proposes an operation control method of a cooking appliance, which is applied to detecting the state of a liquid storage tank of the cooking appliance.
  • the cooking appliance can be any electrical appliance with a liquid storage tank for storing cooking-related liquids, such as an electric rice cooker, coffee machine, cooking machine, wall breaker, and the like.
  • the cooking appliance includes a liquid storage tank and a light detection device arranged corresponding to the liquid storage tank.
  • the photodetection device includes a first photodetection module and a second photodetection module, and the first photodetection module and the second photodetection module are specifically for detecting the liquid storage in the liquid storage tank and/or the placement of the liquid storage tank in the cooking utensil. detection device.
  • the types of the first light detection module and the second light detection module can be set according to actual conditions, such as light sensors or detection modules with light emitting and light receiving functions.
  • the location of the light detection device can be set according to the actual situation, for example, it can be arranged outside the liquid storage tank, inside the liquid storage tank, above the liquid storage tank, or below the liquid storage tank.
  • the first light detection module is set corresponding to the liquid storage chamber
  • the second light detection module is set corresponding to the target area of the liquid storage tank
  • the target area is the The area on the liquid tank outside the liquid storage chamber.
  • the first light detection module is a module for detecting the liquid storage condition of the liquid storage tank
  • the second light detection module is a module for detecting the placement of the liquid storage tank in the cooking appliance.
  • the liquid storage tank is a water tank.
  • the liquid storage tank can be set as a module for storing other types of liquids (such as soup, soda, coffee, etc.) according to actual needs
  • the operation control method of the cooking appliance includes the following steps:
  • Step S110 obtaining a first light detection signal of the first light detection module, and obtaining a second light detection signal of the second light detection module;
  • the first light detection signal here is obtained by monitoring the emission signal of the first light detection module, the received reflection signal, the amount of change of the signal and/or the rate of change of the signal, and the like.
  • the second light detection signal here is obtained by monitoring the emission signal of the second light detection module, the received reflection signal, the amount of change of the signal and/or the rate of change of the signal, and the like.
  • the acquisition methods of the first light detection signal and the second light detection signal can be adapted to the different detection principles of the corresponding light detection modules.
  • the first light detection module or the second light detection module includes a signal transmitter and a signal receiver.
  • the signals of the transmitter and the receiver can be monitored at the same time to obtain the corresponding optical detection signal of the first optical detection module or the second optical detection module, and the signal of the signal receiver can also be monitored to obtain the first optical detection module or the second optical detection module.
  • the light detection signal corresponding to the second light detection module as another example, when the first light detection module or the second light detection module is a light sensor, the signal detected by the light sensor can be directly monitored to obtain the corresponding light detection signal of the first light detection module or the second light detection module. light detection signal.
  • the first light detection signal and the second light detection signal here can be obtained from signals detected by the first light detection module and the second light detection module obtained in real time after the cooking appliance is powered on and receives a user's setting instruction.
  • Different states of the liquid storage tank in the cooking appliance can form different light detection signals in the first light detection module and the second light detection module.
  • the light detection signals in the first light detection module and the second light detection module are different when water is placed and when water is not placed; It is different from the light detection signal in the second light detection module.
  • step S110 may be performed after receiving an instruction to start the cooking function input by the user.
  • Step S120 determining state information of the liquid storage tank according to the first light detection signal and the second light detection signal.
  • the state information of the liquid storage tank specifically represents the characteristic information of the current state of the liquid storage tank in the cooking appliance related to cooking.
  • the state information of the liquid storage tank may include information on the placement state of the liquid storage tank (such as whether there is a liquid storage tank), information on the amount of liquid stored, information on the placement state of the liquid (such as whether there is liquid placed), and/or liquid temperature information.
  • Different first light detection signals and different second light detection signals correspond to different state information of the liquid storage tank.
  • the installation location and the like can pre-establish the corresponding relationship between the first light detection signal, the second light detection signal and the state information of the liquid storage tank.
  • the corresponding relationship may have forms such as calculation relationship and mapping relationship.
  • the current state information of the liquid storage tank corresponding to the first light detection signal and the second light detection signal can be determined.
  • the setting state information of different liquid storage tanks corresponds to different setting signal characteristics. If the first light detection signal and the second light detection signal match the setting signal characteristics, the setting can be determined.
  • the setting state information of the liquid storage tank corresponding to the characteristic information is the current state information of the liquid storage tank of the cooking appliance.
  • the first photodetection module and the second photodetection module can be obtained
  • the signals corresponding to when the liquid tank is placed with liquid can be the same amount or different amounts) and when no liquid is placed are used as the first sample, and based on the analysis of the first sample, the liquid storage tank is placed with and without liquid.
  • the first characteristic signal and the second characteristic signal correspond respectively when there is liquid, the first state when the liquid storage tank is placed is associated with the first characteristic signal, and the second state when the liquid storage tank is not placed with liquid is associated with the second characteristic signal
  • the signals are associated to form a first corresponding relationship. Based on the first correspondence, when both the first light detection signal and the second light detection signal match the first characteristic signal, it can be determined that the state information of the liquid storage tank is liquid in the liquid storage tank, and the first light detection signal and the second light detection signal match the first characteristic signal. When both the second light detection signals match the second characteristic signal, it can be determined that the state information of the liquid storage tank is that no liquid is placed in the liquid storage tank.
  • the storage can be obtained.
  • the signals corresponding to the first light detection module and the second light detection module are used as the second sample, and based on the analysis of the second sample, the respective corresponding first and second signals when the liquid storage tank is placed with different amounts of liquid Three characteristic signals.
  • the second corresponding relationship is formed by associating the different third characteristic signals with the corresponding liquid volumes of the liquid storage tanks. Based on this, when there is a third characteristic signal that matches the first light detection signal and the second light detection signal, the liquid volume of the liquid storage tank associated with the matching third characteristic signal can be determined as the liquid stored in the cooking appliance. Box current information.
  • the liquid storage tank is placed in the designated position and not placed in the designated position in the cooking appliance, different light detection signals will be formed in the first photodetection module and the second photodetection module, and the liquid storage tank can be obtained multiple times.
  • the signals corresponding to the first light detection module and the second light detection module respectively when placed at the specified position and when not placed at the specified position and when not placed are used as the third sample. Based on the analysis of the third sample, it is obtained
  • the fourth characteristic signal and the fifth characteristic signal respectively correspond to when placed in the designated position, the liquid storage tank is placed in the designated position and is associated with the fourth characteristic signal, and the liquid storage tank is not placed in the designated position and is associated with the fifth characteristic signal to form a third correspondence relation.
  • the state information of the liquid storage tank is the designated position of the liquid storage tank in the cooking utensil.
  • the signal and the second light detection signal match the fifth characteristic signal, it can be determined that the state information of the liquid storage tank is that the liquid storage tank is not placed in the designated position of the cooking appliance.
  • the liquid storage cavity of the liquid storage tank of the cooking appliance and the outer area of the liquid storage cavity are respectively provided with a first light detection module and a second light detection module. Combining the first photodetection signal detected by the first photodetection module and the second photodetection signal detected by the second photodetection module to determine the state information of the liquid storage tank, so as to realize effective monitoring of the state of the liquid storage tank in the cooking appliance through the photodetection signal detection to meet the cooking needs of users.
  • the housing includes a first light-transmitting part located in the liquid storage chamber, the first light detection module is arranged corresponding to the first light-transmitting part, and the first light-transmitting part is a full A reflective structure, the target area is provided with a reflective structure.
  • the total reflection structure is specifically a rib that has a total reflection effect on the incident optical signal. After the transmission signal of the light detection module is incident into the total reflection structure, total reflection can occur in the total reflection structure, and the reflection signal formed by the total reflection can reflect to the light detection module.
  • the total reflection structure includes a first surface, a second surface and a third surface, the first surface is provided on the outer surface of the housing, the second surface intersects the third surface, and located in the liquid storage chamber.
  • the total reflection structure may also have other structures, as long as the total reflection can be realized.
  • the target area may be provided with a light-transmitting reflective structure, or may be provided with a light-impermeable reflective structure. Based on this, with reference to FIG. 16, step S120 includes:
  • Step S121 identifying whether the first light detection signal has a first characteristic signal, and obtaining a first identification result
  • the first optical detection signal can be identified based on the signal strength of the first optical detection signal whether there is a first characteristic signal in the first optical detection signal, or based on the signal characteristic parameters (such as frequency and receiving time period) of the first optical detection signal and The result obtained after comparing the preset signal features corresponding to the first characteristic signal identifies whether the first light detection signal has the first characteristic signal.
  • the first identification result includes the existence of the first characteristic signal in the first optical detection signal or the absence of the first characteristic signal in the first optical detection signal.
  • Step S122 identifying whether there is a second characteristic signal in the second optical detection signal, and obtaining a second identification result
  • the second optical detection signal can be identified based on the signal strength of the second optical detection signal whether there is a second characteristic signal in the second optical detection signal, or based on the signal characteristic parameters (such as frequency, receiving time period) and The result obtained after comparing the preset signal features corresponding to the second characteristic signal identifies whether the second light detection signal has the second characteristic signal.
  • the second identification result includes the existence of the second characteristic signal in the second optical detection signal or the absence of the second characteristic signal in the second optical detection signal.
  • Step S123 determining the state information of the liquid storage tank according to the first identification result and the second identification result
  • the first characteristic signal is the first reflection signal formed by the emission signal of the first photodetection module in the first light-transmitting part
  • the second characteristic signal is the emission signal of the second photodetection module.
  • the signal forms a second reflected signal in the target area.
  • the intensity of the first reflected signal is greater than a first preset intensity threshold
  • the intensity of the second reflected signal is greater than a second preset intensity threshold.
  • Specific sizes of the first preset intensity threshold and the second preset intensity threshold can be set according to actual conditions.
  • the first preset intensity threshold is greater than or equal to 50% of the signal intensity of the first transmission signal emitted by the first light detection module
  • the second preset intensity threshold is greater than or equal to the signal intensity of the second light detection module. 50% of the signal strength of the second transmitted signal.
  • the emission signal emitted by the light detection module can not only reflect on the storage tank, but also form reflection signals on other parts of the cooking utensil, so the identification of the reflection signal with sufficient intensity will be used as the determination of the status information of the storage tank.
  • the basis can ensure the accuracy of the determined state information of the liquid storage tank.
  • Different states of the liquid storage tank have different effects on the total emission of the light signals sent by the first light detection module and the second light detection module on the reflective structure of the liquid storage tank. Based on this, different first identification results and different second identification results correspond to different state information of the liquid storage tank.
  • the total reflection structure corresponding to the first photodetection module can totally reflect the emission signal of the first photodetection module to form the first reflection signal, and the reflection structure corresponding to the second photodetection module
  • the emission signal of the second photodetection module can be reflected to form a second reflection signal;
  • the total reflection structure corresponding to the first photodetection module cannot detect the emission signal of the first photodetection module.
  • the reflective structure corresponding to the second photodetection module cannot reflect the emission signal of the second photodetection module.
  • the corresponding relationship between the first recognition result, the second recognition result and the state information of the material storage box can be preset, and based on the corresponding relationship, the current state of the material storage box can be determined through the current first recognition result and the second recognition result information.
  • the state information of the liquid storage tank includes the placement state information of the liquid storage tank and the liquid storage state information of the liquid storage tank, and according to the first identification result and the second
  • the step of determining the state information of the liquid storage tank according to the second recognition result includes: determining the placement state information according to the second recognition result; and determining the liquid storage state information according to the first recognition result.
  • the placement state information here includes information about whether the liquid storage tank is placed on the cooking appliance.
  • the liquid storage state information includes liquid placement state information (whether the liquid is placed in the liquid storage tank) and/or liquid volume information (how much liquid is in the liquid storage tank).
  • the first light detection module is set corresponding to the liquid storage cavity
  • the second light detection module is set corresponding to the outside of the liquid storage cavity
  • identifying the placement state information of the liquid storage tank based on the second recognition result corresponding to the outside of the liquid storage cavity can ensure that the liquid storage tank
  • the liquid storage state of the storage tank will not affect the accuracy of the placement state of the storage tank, but the liquid storage state can be quickly and accurately identified based on the first recognition result corresponding to the liquid storage cavity.
  • the first recognition result can be executed only when the placement state information is determined to be that the liquid storage tank is placed on the cooking appliance according to the second recognition result.
  • the liquid storage state information may be directly output as the cooking utensil is not placed with liquid.
  • the placement state information of the liquid storage tank may also be determined simultaneously according to the first recognition result and the second recognition result, and the liquid storage state information may be determined simultaneously according to the first recognition result and the second recognition result.
  • a partition is provided inside the housing, and the partition divides the housing into the liquid storage chamber and the cavity, and the liquid storage chamber is isolated from the cavity
  • the housing further includes a second light-transmitting portion disposed corresponding to the cavity, the reflective structure in the target area includes the second light-transmitting portion, and the second light-transmitting portion is a total reflection structure.
  • the liquid storage chamber is isolated from the cavity, so when the liquid storage chamber is loaded with liquid, the liquid will not leak into the cavity, and the cavity is filled with air.
  • the cavity is located at the bottom of the liquid storage tank. In other embodiments, the cavity may also be located at the middle or upper part of the liquid storage tank.
  • the housing includes a first sub-housing and a second sub-housing, the first sub-housing is surrounded by a partition to form a liquid storage chamber, the second sub-housing is surrounded by a partition to form a cavity, and the second sub-housing is surrounded by a partition to form a cavity.
  • the space occupied by the housing and the cavity can be used as the target area here, and the second light-transmitting part is a part of the second sub-housing.
  • the liquid storage tank may not be provided with a cavity, and the target area is a solid structure outside the liquid storage chamber, such as the bottom plate of the liquid storage tank.
  • the step of determining the placement status information according to the second identification result includes:
  • determining the placement state information is that the liquid storage tank is placed on the cooking appliance
  • the placement state information is that the liquid storage tank is not placed on the cooking appliance.
  • the second light-transmitting part is a total emission structure, and when the second light-transmitting part is aligned with the second photodetection module, the light signal emitted by the second photodetection module can be reflected under the action of the total reflection structure Back to the second photodetection module to form the second reflection signal; when the second sub-light-transmitting part and the second photodetection module are dislocated or far away from each other, the light signal emitted by the second photodetection module is due to the total reflection of the total reflection structure It cannot return to the second photodetection module to form the second reflection signal.
  • the liquid storage tank is placed on the cooking utensil when there is a second characteristic signal, and it is determined that the liquid storage tank is not placed on the cooking utensil when there is no second characteristic signal.
  • the cooperation of the total reflection structure is set to accurately identify the placement state of the liquid storage tank.
  • the liquid storage chamber is used for placing light-transmitting liquids, such as water, Sprite, and other liquids whose light transmittance is greater than or equal to a set threshold.
  • the liquid storage state information includes the liquid storage state information, and the liquid storage state information includes information about whether liquid is placed in the liquid storage tank. Based on this, the step of determining the liquid storage state information according to the first identification result includes:
  • the placement status information is that the liquid storage tank is placed on the cooking appliance
  • the first identification result is that the first light detection signal has the first characteristic signal
  • determine the placement status of the liquid The information is that no liquid is placed in the liquid storage tank
  • the liquid placement status information is that the liquid storage tank has placed liquid.
  • the light-transmitting part of the optically thinner medium into the light-transmitting liquid such as water as the optically denser medium, Since light-transmitting liquids such as water can transmit light, the light signal cannot return to the first light detection module, and the first light detection signal cannot be formed on the first light detection module; There is no light-transmitting liquid such as water.
  • the light signal After the optical signal emitted by the first photodetection module is incident on the first light-transmitting part, the light signal is irradiated from the inside of the first light-transmitting part of the optically dense medium into the air as the optically sparse medium. The signal is totally reflected back to the first light detection module to form a first reflected signal. Based on this, it is determined that no liquid is placed in the liquid storage tank when the first characteristic signal exists, and it is determined that there is liquid in the liquid storage tank when the first characteristic signal does not exist, thereby realizing the first photodetection module based on the first light detection module and the first total reflection structure. A light-transmitting part cooperates with the precise identification of the state of the liquid.
  • the number of the first light detection module is multiple, the number of the first light transmission part is multiple, the first light detection module and the first light transmission part One-to-one correspondence settings.
  • a plurality of the first light detection modules are arranged at intervals along the vertical direction.
  • the first recognition result includes sub-recognition results corresponding to each of the first light detection modules. Each sub-recognition result can be used to determine the above-mentioned liquid placement status information.
  • the liquid storage state information also includes liquid storage information, and the liquid storage information is specifically information representing how much liquid is placed in the liquid storage tank. After the step of determining that the liquid storage state information is that the liquid has been placed in the liquid storage tank, it also includes: determining according to the plurality of sub-identification results and the set storage volume corresponding to each of the first light detection modules The liquid storage information.
  • different first photodetection modules have different set storage volumes correspondingly. amount of liquid.
  • the sub-recognition result that the corresponding first light detection signal has the first characteristic signal is the target result.
  • the pre-associated set storage volume corresponding to the first light detection signal obtained from the target result is the target storage volume
  • the liquid storage volume information here is determined according to the target storage volume with the largest value among the several acquired target storage volumes.
  • the target storage volume with the largest numerical value can be directly used as the liquid storage volume information, or the target storage volume with the largest numerical value can be converted according to preset rules to obtain the liquid storage volume information here.
  • the amount of liquid stored in the liquid storage tank is further determined based on the sub-recognition results corresponding to more than one first light detection devices, so as to realize the detection of water in the liquid storage tank.
  • the amount of liquid stored in it can be effectively detected to further ensure that the cooking needs are met.
  • the first light detection signal is a signal generated according to the first emission signal of the first light detection module and its corresponding first reflection signal.
  • the first light detection signal is the ratio of the signal strength of the first transmitted signal to the signal strength of the first reflected signal, wherein the signal strength is 0 or close to 0 when there is no first reflected signal. If the state of the liquid storage tank is different, the feedback signal corresponding to the first emission signal is different (there is a first reflection signal or there is no first reflection signal), the feedback signal is different, and the first light detection formed by the first light detection module The magnitudes of the signals are different. Based on this, it can be determined according to the first magnitude relationship between the first light detection signal and its corresponding first set signal threshold, and whether the first light detection signal is A first characteristic signal is present. Specifically, step S121 includes:
  • Step S211 comparing the magnitude of the first light detection signal with the first set signal threshold
  • the first set signal threshold is preset to distinguish different states of the liquid storage tank in the cooking appliance (such as the state that the liquid storage tank has been placed on the cooking appliance or the state that the liquid storage tank is not placed on the cooking appliance, the liquid storage tank
  • the critical value of the light detection signal detected by the first light detection module corresponding to the state of water presence or absence of water, different water volumes in the liquid storage tank, etc.
  • the first set signal threshold may vary depending on the light characteristics of the first light-transmitting portion of the liquid storage tank and/or the signal detection principle of the first light detection module.
  • Step S212 if the first light detection signal is greater than the first set signal threshold, then determine that the first light detection signal does not have the first characteristic signal;
  • Step S213 if the first light detection signal is less than or equal to the first set signal threshold, then determine that the first light detection signal has the first characteristic signal;
  • the first light detection module when the first light detection module cannot receive the first reflection signal formed on the liquid storage tank by the first transmission signal emitted by the first light detection module, the first light detection signal is infinite; when the first light detection module receives When the first emission signal emitted by it forms a first reflection signal on the liquid storage tank, the first light detection signal is 0 or close to 0.
  • the first optical detection signal corresponding to the liquid storage tank is defined as X1
  • the first set signal threshold is A
  • X1>A can be considered that there is no first characteristic signal in the first optical detection signal
  • X1 ⁇ it may be considered that the first characteristic signal exists in the first light detection signal.
  • the second light detection signal is a signal generated according to the second emission signal of the second light detection module and its corresponding second reflection signal.
  • the second light detection signal is the ratio of the signal strength of the second transmitted signal to the signal strength of the second reflected signal, wherein the signal strength is 0 or close to 0 when there is no second reflected signal. If the state of the liquid storage tank is different, the feedback signal corresponding to the second emission signal is different (there is a second reflection signal or there is no second reflection signal), the feedback signal is different, and the second light detection formed by the second light detection module The magnitudes of the signals are different. Based on this, it can be determined according to the second magnitude relationship between the second light detection signal and its corresponding second set signal threshold, and whether the second light detection signal is There is a second characteristic signal.
  • step S122 includes:
  • Step S221 comparing the magnitude of the second photodetection signal with a second set signal threshold
  • the second set signal threshold is preset to distinguish different states of the liquid storage tank in the cooking appliance (such as the state that the liquid storage tank has been placed on the cooking appliance or the state that the liquid storage tank is not placed on the cooking appliance, the liquid storage tank
  • the critical value of the light detection signal detected by the second light detection module corresponding to the state of water presence or absence of water, different water volumes in the liquid storage tank, etc.
  • the second set signal threshold may be different depending on the light characteristics of the second light-transmitting portion of the liquid storage tank and/or the signal detection principle of the second light detection module.
  • the first set signal threshold and the second set signal threshold may be the same or different.
  • Step S222 if the second light detection signal is greater than the second set signal threshold, then determine that the second light detection signal does not have the second characteristic signal;
  • the second light detection module when the second light detection module cannot receive the second reflection signal formed on the liquid storage tank by the second transmission signal emitted by the second light detection module, the second light detection signal is infinite; when the second light detection module receives When the emitted second emission signal forms a second reflection signal on the liquid storage tank, the second light detection signal is 0 or close to 0.
  • the second light detection signal corresponding to the liquid storage tank is defined as Y1
  • the second set signal threshold is B
  • Y1>B can be considered that there is no second characteristic signal in the second light detection signal
  • Y1 ⁇ In case B, it may be considered that the second characteristic signal exists in the second light detection signal.
  • the first light detection signal, the second light detection signal, the first set signal threshold and the second set signal threshold are all converted from the analog voltage detected by the light detection module.
  • the value of the numeric quantity is beneficial to accurately identify the different state information of the liquid storage tank in the cooking appliance
  • the state of the liquid storage tank in the cooking appliance can be accurately characterized based on the first identification result and/or the second identification result.
  • the present application also proposes another embodiment of the operation control method of the cooking appliance.
  • this embodiment referring to FIG. 17 , after the step S120, it further includes:
  • Step S130 judging whether the status information of the liquid storage tank satisfies the set cooking conditions
  • step S140 If the state information of the liquid storage tank satisfies the set cooking condition, execute step S140; if the state information does not meet the set cooking condition, execute step S150.
  • the setting of the cooking condition specifically refers to the standard that the cooking appliance meets the required condition of the liquid storage tank for the purpose of cooking food that meets the needs of the user.
  • the setting of the cooking conditions may specifically include the amount of liquid required for cooking, the location requirements of the liquid storage tank, and/or the temperature of the liquid required for cooking, and the like.
  • the set cooking conditions may be pre-existing system default conditions, or may be determined based on user-input parameters.
  • Set cooking conditions can vary based on the type of cooking. For example, porridge cooking and rice cooking may correspond to different set cooking conditions. Specifically, by analyzing the instructions input by the user, the cooking type required by the user can be determined, and then the corresponding pre-stored cooking conditions can be read as the set cooking conditions here.
  • Step S140 controlling the cooking appliance to perform a cooking operation.
  • Step S150 controlling the cooking appliance to stop performing the cooking operation and output prompt information.
  • the state information of the liquid storage tank satisfies the set cooking conditions. It can be considered that the current state of the liquid storage tank of the cooking utensil can ensure that the cooking utensil uses the liquid currently stored in the liquid storage tank to cook food that meets the user's needs, so cooking operations can be performed (for example, Transport the liquid stored in the liquid storage tank to the cooking cavity or directly heat the liquid storage tank, etc.); the state information of the liquid storage tank does not meet the set cooking conditions, and it can be considered that the current state of the liquid storage tank of the cooking appliance cannot guarantee the use of the cooking appliance.
  • the liquid currently stored in the liquid tank cooks food that meets the needs of the user, so the cooking operation is prohibited and prompt information is output to prompt the user, so that the user can adjust the state of the liquid storage tank of the cooking appliance in time.
  • different state information of the liquid storage tank may correspond to different prompt information, so that the user can accurately know the content that needs to be adjusted in the current period.
  • the prompt information may specifically include output in the form of display, sound, light, and the like.
  • the display screen of the cooking appliance can be controlled to display prompt information or push the prompt information to the user's terminal to prompt the user.
  • the state information of the obtained liquid storage tank is automatically identified, it is determined whether the recognized state information of the liquid storage tank meets the cooking requirements, and the execution is allowed only when it is determined that the state of the liquid storage tank meets the cooking requirements.
  • Cooking operation so as to ensure that the state of the subsequent liquid storage tank can meet the cooking requirements, ensure the cooking effect and the safe use of cooking utensils; when it is determined that the state of the liquid storage tank does not meet the cooking requirements, the cooking operation is prohibited, so as to effectively avoid the unsatisfactory cooking effect User needs or safety issues with cooking appliances due to poor condition of the liquid reservoir.
  • the state information of the liquid storage tank includes the placement state information of the liquid storage tank and the liquid storage state information in the liquid storage tank (such as liquid placement state information and/or liquid volume information), based on this, step S130 includes:
  • Step S131 judging whether the storage state information of the liquid storage tank satisfies a first set condition, and whether the liquid storage state information satisfies a second set condition;
  • step S132 When the placement state information of the liquid storage tank meets the first set condition and the liquid storage state information meets the second set condition, perform step S132; when the placement state information of the liquid storage tank does not meet the first set condition When a condition is set, or, when the liquid storage state information does not satisfy the second set condition, step S133 is executed.
  • the first setting condition is that the liquid storage tank has been placed on the cooking appliance
  • the second setting condition is that there is liquid in the liquid storage tank and the amount of liquid in the liquid storage tank is greater than or Equal to the amount of storage needed for cooking.
  • Step S132 determining that the state information of the liquid storage tank satisfies the set cooking condition
  • Step S133 determining that the state information of the liquid storage tank does not meet the set cooking conditions
  • the storage capacity required for cooking specifically refers to the amount of liquid that needs to be placed in the liquid storage tank when the amount or shape of the food obtained by the cooking operation can meet the needs of the user.
  • the storage capacity required for cooking may be automatically identified based on the cooking type used for selection, or may be obtained directly from parameters input by the user, or may be default stored parameters.
  • the storage volume required for cooking can be 400ml; when the user needs to cook rice, the storage volume required for cooking can be 330ml. Based on this, cooking porridge will only start when the liquid storage tank is placed in the cooking utensil and the amount of liquid stored in it is at least 400ml, otherwise the porridge cooking operation will not be performed; when the liquid storage tank is placed in the cooking utensil , and the amount of liquid stored in it is at least 330ml, the cooking will start, otherwise the cooking operation of cooking will not be performed.
  • the liquid storage tank is placed in the cooking appliance, and the amount of liquid that meets the cooking requirements is stored in the liquid storage tank before starting cooking, so as to ensure that the cooking appliance can achieve effective cooking and finally cook the obtained
  • the amount and shape of the food can meet the needs of the user, so as to further improve the cooking effect of the cooking utensil.
  • An embodiment of the present application provides a control device for a cooking appliance, which is used to control a cooking process of the cooking appliance.
  • the control device can be built into the cooking appliance, or it can be arranged on the outside of the cooking appliance independently.
  • the controller includes: a processor 1001 (such as a CPU), a memory 1002, a data interface 1003, and the like.
  • the memory 1002 can be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory.
  • the memory 1002 may also be a storage device independent of the foregoing processor 1001 .
  • Both the memory 1002 and the data interface 1003 are connected to the processor 1001 .
  • the processor 1001 can be connected to the first light detection module 21 and the second light detection module 22 through the data interface 1003 to obtain light detection signals respectively corresponding to the first light detection module 21 and the second light detection module 22 .
  • FIG. 18 does not constitute a limitation to the device, and may include more or less components than shown in the figure, or combine some components, or arrange different components.
  • the memory 1002 as a computer-readable storage medium may include a control program of the cooking appliance.
  • the processor 1001 can be used to call the control program of the cooking appliance stored in the memory 1002 and execute the relevant steps of the operation control method of the cooking appliance in any of the above embodiments.
  • a cooking appliance which can be any electrical appliance with a storage box 1 for loading cooking materials, such as a rice cooker, a coffee machine, a cooking machine, a wall breaker, and the like.
  • the cooking appliance includes a liquid storage tank 9 , a first photodetection module 21 , a second photodetection module 22 and the above-mentioned control device for the cooking appliance.
  • the liquid storage tank 9 includes a housing, and a liquid storage chamber is arranged in the housing, the first optical detection module 21 is arranged corresponding to the liquid storage chamber, and the second optical detection module 22 is corresponding to the storage chamber.
  • the target area of the liquid tank 9 is set, the target area is the area on the liquid storage tank 9 outside the liquid storage cavity, and the first light detection module 21 and the second light detection module 22 are both connected to the control device .
  • the first light detection module 21 and the second light detection module 22 are specifically functional modules that use optical signals to detect the liquid storage tank 9 and/or the placement of the liquid storage tank 9 in the cooking appliance.
  • the first light detection module 21 and the second light detection module 22 may be light sensors, or detection components having a light emitter and a light receiver.
  • the first light detection module 21 and the second light detection module 22 may include an infrared light transmitter and an infrared light receiver.
  • the number of the first photodetection modules 21 or the second photodetection modules 22 can also be set according to the actual situation, and can be 1, 2, 5 or 6 and so on. Specifically, in an embodiment, the number of the first light detection module 21 is more than one, and the number of the second light detection module 22 is one. In the second embodiment, the number of the first light detection module 21 is one, and the number of the second light detection module 22 is one.
  • the first light detection module 21 and/or the second light detection module 22 can be arranged outside the liquid storage tank 9 .
  • the first photodetection module 21 and/or the second photodetection module 22 can also be arranged inside the liquid storage tank 9 , above the liquid storage tank 9 or below the liquid storage tank 9 according to the actual situation.
  • the different states of the liquid storage tank 9 in the cooking utensil (such as whether the liquid storage tank 9 is placed in the cooking utensil, whether water is placed in the liquid storage tank 9, whether the amount of water in the liquid storage tank 9 is different, etc.)
  • Different light detection signals are formed in the second light detection module 22 .
  • the first photodetection module 21 and the second photodetection module 22 are light sensors, when a natural light source or an electronic light source irradiates the liquid storage tank 9, the illuminance detected by the light sensor when the liquid storage tank 9 is stored with water is relatively low. Small; when the liquid storage tank 9 does not store water, the illuminance detected by the light sensor is relatively large.
  • This embodiment proposes a cooking appliance, in which a first photodetection module 21 and a second photodetection module 22 are arranged corresponding to the liquid storage tank 9, and the control device is connected with the first photodetection module 21 and the second photodetection module respectively.
  • the module 22 is connected, so that the control device can automatically and accurately determine the situation of the liquid storage tank 9 based on the corresponding light detection signals of the first light detection module 21 and the second light detection module 22 according to the relevant process in the above-mentioned operation control method of the cooking appliance.
  • identification which combines the light detection characteristics of the first light detection module 21 and the second light detection module 22, the light transmission characteristics of the liquid storage tank 9, the light transmission characteristics of the liquid that the liquid storage tank 9 needs to be loaded, etc.
  • a partition 8 is provided inside the liquid storage tank 9, and the partition 8 divides the interior of the liquid storage tank 9 into an isolated liquid storage cavity and a cavity
  • the housing includes a first light-transmitting portion 31 located in the liquid storage cavity and a second light-transmitting portion 32 located in the cavity, and the first light detection module 21 is disposed corresponding to the first light-transmitting portion 31 , the area where the second light-transmitting portion 32 is located is the target area, and both the first light-transmitting portion 31 and the second light-transmitting portion 32 are total reflection structures.
  • the liquid storage cavity is used for storing liquid.
  • the liquid storage chamber is isolated from the cavity, so when the liquid storage chamber is loaded with liquid, the liquid will not leak into the cavity, and the cavity is filled with air.
  • the cavity is located at the bottom of the liquid storage tank 9 , and in other embodiments, the cavity may also be located at the middle or upper part of the liquid storage tank 9 .
  • the housing includes a first sub-housing and a second sub-housing, the first sub-housing is surrounded by a partition 8 to form a liquid storage chamber, the second sub-housing and the partition 8 are surrounded to form a cavity, and the second sub-housing is surrounded by a partition 8 to form a cavity.
  • the space occupied by the second sub-housing and the cavity can be used as the target area here, and the second light-transmitting portion 32 is a part of the second sub-housing.
  • the liquid storage tank 9 may not be provided with a cavity, and the target area is a solid structure outside the liquid storage chamber, such as the bottom plate of the liquid storage tank 9 .
  • the entire casing of the liquid storage tank 9 is made of a transparent material (for example, acrylonitrile-styrene copolymer).
  • the liquid storage tank 9 can also be a partially transparent structure, only the first light-transmitting part 31 and the second light-transmitting part 31 and the second light-transmitting part 31 need to be provided at the positions corresponding to the first light detection module 21 and the second light detection module 22. Part 32, while other positions do not need to be provided with light-transmitting parts.
  • the total reflection structure is specifically a rib that has a total reflection effect on the incident optical signal. After the emission signal of the first light detection module 21 or the second light detection module 22 is incident into the total reflection structure, a total reflection structure can occur in the total reflection structure. Reflection, the reflection signal formed by total reflection can be reflected to the corresponding photodetection module.
  • the position corresponding to the second detection module 32 on the target area can also be an opaque reflective structure; the first light-transmitting part 31 or the second light-transmitting part 32 can be a plane light-transmitting structure.
  • the first photodetection module 21 and the second photodetection module 22 respectively include a phototransmitter and a photoreceiver, and when the first photodetection module 21 or the second photodetection module 22 and the total reflection structure When the position is set, the light emitted by the light emitter enters the corresponding total reflection structure.
  • the air in the liquid storage cavity or the air when there is no liquid in the liquid storage cavity, etc.), and the light-transmitting total reflection structure is an optically dense medium, so the light incident on the total reflection structure will be totally reflected, and the reflected light path will enter into the A corresponding reflected signal is formed in the light receiver.
  • the first photodetection module 21 or the second photodetection module 22 When the first photodetection module 21 or the second photodetection module 22 is not aligned with the corresponding total reflection structure on the liquid storage tank 9 or the liquid storage tank 9 is placed with an optically dense medium such as liquid, the light incident on the total reflection structure The light will not be fully emitted, but will be transmitted into the liquid storage tank 9, and the light receiver will not detect the reflected signal. Based on this, through the light transmission characteristics of the total reflection structure, the placement of the liquid storage tank 9 and the liquid storage conditions in the area corresponding to the first light detection module 21 or the second light detection module 22 in the liquid storage tank 9 can be accurately identified. .
  • the first light-transmitting part 31 and/or the second light-transmitting part 32 can also be set as other types of light-transmitting structures according to actual needs, and only need to ensure that the different states of the liquid storage tank 9 Different light detection signals can be formed in the light detection device 2 through the light adjustment function of the light-transmitting part 3 to realize the distinction of different states of the liquid storage tank 9 .
  • the mutual influence of the detection signals of the first photodetection module 21 and the second photodetection module 22 can be avoided, and the light corresponding to the first photodetection module 21 and the second photodetection module 22 can be guaranteed.
  • the detection signal can accurately characterize the conditions of different liquid storage tanks 9 in the cooking appliance.
  • the total reflection structure includes a first surface, a second surface and a third surface, the first surface is provided on the outer surface of the housing, so The second surface and the third surface perpendicularly intersect;
  • the second surface has a first side and a second side opposite to each other, the third surface has a third side and a fourth side opposite to each other, the first side is connected to the third side, and the first side is connected to the third side.
  • the distance between the two sides and the fourth side is within the range of [5mm, 9mm].
  • the first surface is the outer surface of the material storage box 1
  • the second surface and the third surface are the inner surface of the material storage box 1 (that is, the inner wall of the material storage cavity or the inner wall of the cavity), and the first photodetection module 21
  • the second light detection module 22 is disposed outside the storage box 1 and spaced apart from the first surface.
  • the light signal emitted by the first photodetection module 21 or the second photodetection module 22 will be vertically incident on the first surface, Reflection occurs on the second surface and the third surface in sequence, and finally the reflected light signal exits from the first surface and returns to the first light detection module 21 or the second light detection module 22 .
  • the second surface and the third surface perpendicularly intersect through the first side and the third side.
  • the distance d1 between the second side and the fourth side can be 7mm; in other embodiments, the distance d1 between the second side and the fourth side can also be selected as 6mm, 5.5mm according to actual needs. mm, 7.5mm, 8mm, 8.5mm, etc.
  • the distance d1 between the second side and the fourth side is too small, the incident light and the reflected light in the total reflection structure are likely to interact with each other, resulting in inaccurate detection results of the state information of the liquid storage tank 9,
  • the distance d1 between the second side and the fourth side is too large, the light is likely to diverge and cause light loss, which affects the accuracy of the detection result of the state information of the liquid storage tank 9 .
  • controlling the distance d1 between the second side and the fourth side within the range of [5mm, 9mm] can help to ensure that the light detection signals based on the first light detection module 21 and the second light detection module 22 can be Accurately acquire the status information of the liquid storage tank 9 .
  • the number of the second light detection modules 22 is multiple, and the multiple second light detection modules 22 are arranged at intervals.
  • there are multiple second light-transmitting portions 32 and the second light detection modules 22 are provided in one-to-one correspondence with the second light-transmitting portions 32 . Based on this, the accurate identification of the liquid storage volume in the liquid storage tank 9 can be realized through the light detection signals detected by the plurality of second light detection modules 22 provided corresponding to the liquid storage chambers.
  • the corresponding N second photodetection modules 32 can be set according to the N liquid quantities required for cooking, or the N quantity of any material (such as the amount of rice, etc.) that can be combined with liquid according to the cooking ratio It is required to determine the positions detected by the N second light detection modules 32 .
  • the height position of the liquid level is respectively provided with a second light detection module 32 to realize identification by a plurality of second light detection modules 32 Whether there is liquid stored in the liquid storage tank 9 and the amount of liquid stored.
  • the cooking utensil includes a main body (not shown), an accommodating cavity is arranged in the main body (not shown), and the liquid storage tank 9 is detachably arranged in the accommodating cavity,
  • the first light detection module 21 and the second light detection module 22 are fixedly connected to the main body (not shown).
  • the shape of the inner wall of the accommodating chamber matches the shape of the outer surface of the liquid storage tank 9 . Based on this, it is convenient to take out the liquid storage tank 9 to clean or load water according to actual needs, while the first light detection module 21 and the second light detection module 22 are fixed on the main body (not shown), which can realize the liquid storage tank 9 The state of putting in and taking out can be accurately identified.
  • the specific structural features of the structural components involved in the embodiment of the operation control method may refer to, but not limited to, the structural features of the corresponding structural components in the embodiment of the cooking appliance.
  • the embodiment of the present application also proposes a computer-readable storage medium, on which an operation control program is stored, and when the operation control program is executed by a processor, the above-mentioned operation control method in any embodiment is implemented related steps.
  • the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of a software product in essence or the part that contributes to the prior art, and the computer software product is stored in a storage medium as described above (such as ROM/RAM , magnetic disk, optical disk), including several instructions to make a terminal device (which may be a mobile phone, computer, server, cooking appliance, or network device, etc.) execute the methods described in various embodiments of the present application.

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Abstract

L'invention concerne un appareil de cuisson et un procédé de commande de fonctionnement pour celui-ci, un appareil de commande et un support de stockage lisible par ordinateur. Le procédé de commande de fonctionnement pour un appareil de cuisson consiste à : acquérir un signal de détection d'un appareil de détection (S10) ; déterminer, en fonction du signal de détection, des informations d'état de remplissage de l'appareil de cuisson (S20) ; déterminer si les informations d'état de remplissage satisfont, ou non, à une condition de cuisson définie (S30) ; si les informations d'état de remplissage satisfont à la condition de cuisson définie, commander l'appareil de cuisson pour exécuter une opération de cuisson (S40) ; sinon, commander l'appareil de cuisson pour arrêter l'opération de cuisson et délivrer en sortie des informations d'invite (S50).
PCT/CN2022/078524 2021-05-20 2022-03-01 Appareil de cuisson et procédé de commande de fonctionnement pour celui-ci, appareil de commande et support de stockage lisible WO2022242267A1 (fr)

Applications Claiming Priority (4)

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CN202110552694.X 2021-05-20
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JP2009300259A (ja) * 2008-06-13 2009-12-24 Mitsubishi Electric Corp 水位検知装置、蒸気回収装置及び加熱調理器
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