Weighing methods and food processing machines

Abstract

This application provides a weighing method and a food processing machine. The method, applied to the food processing machine, includes: when an object to be weighed is detected, acquiring a first weighing signal and a second weighing signal; wherein the first weighing signal and the second weighing signal are respectively from a first set of weighing sensors in a first weighing area and a second set of weighing sensors in a second weighing area; determining a weighing mode based on the first weighing signal and the second weighing signal, wherein the weighing mode is used to characterize whether the object to be weighed is located in the first weighing area or the second weighing area; and determining the weight information of the object to be weighed based on the weighing mode, the first weighing signal, and the second weighing signal. In this embodiment, when two weighing signals are detected, the weighing station (i.e., the weighing area) where the object to be weighed is located is first determined, and then the weight information of the object to be weighed is determined based on the weighing station and the weighing signals, thereby improving the accuracy of object weighing.

Description

Technical Field

[0001] This application relates to the field of weighing technology, and more particularly to a weighing method and a food processing machine. Background Technology

[0002] Existing multi-functional food processors typically weigh food only at one station, failing to accurately weigh food at other stations. For example, Chinese patent CN107581886A discloses a multi-functional food processor that uses four electronic scale sensors, requiring precise component dimensions, which may result in significant weighing errors. Furthermore, it can only weigh food within the bowl assembly mounted on the core unit, not food at other stations. Summary of the Invention

[0003] In view of the above-mentioned problems existing in the prior art, this application provides a weighing method applied to a food processing machine, the method comprising:

[0004] When an object to be weighed is detected, a first weighing signal and a second weighing signal are acquired; wherein, the first weighing signal and the second weighing signal are respectively from the first set of weighing sensors in the first weighing area and the second set of weighing sensors in the second weighing area;

[0005] A weighing mode is determined based on the first weighing signal and the second weighing signal, wherein the weighing mode is used to characterize that the object to be weighed is located in the first weighing area or the second weighing area.

[0006] The weight information of the object to be weighed is determined based on the weighing mode, the first weighing signal, and the second weighing signal.

[0007] In this embodiment of the application, when two weighing signals from the first weighing area and the second weighing area are detected, the weighing station where the object to be weighed is located is first determined, that is, located in the first weighing area or the second weighing area. Then, the weight information of the object to be weighed is determined according to the weighing station and the weighing signal, thereby improving the accuracy of weighing the object.

[0008] In some embodiments, the weighing mode includes a first weighing mode and a second weighing mode;

[0009] Determining the weighing mode based on the first weighing signal and the second weighing signal includes:

[0010] The first voltage value and the second voltage value corresponding to the first weighing signal and the second weighing signal are respectively acquired;

[0011] If the object to be weighed is determined to be located in the first weighing area based on the first voltage value and the second voltage value, then it belongs to the first weighing mode; otherwise, it belongs to the second weighing mode. This improved method can accurately determine the weighing area of ​​the object to be weighed, thus achieving the beneficial effect of accurate weighing.

[0012] In some embodiments, determining the weight information of the object to be weighed based on the weighing mode, the first weighing signal, and the second weighing signal includes:

[0013] If the weighing mode is the first weighing mode, the first calibration information corresponding to the first weighing mode is obtained, and the weight of the object to be weighed is determined according to the first calibration information, the first voltage value, and the second voltage value. Through this improved method, since the calibration information corresponding to different weighing modes can accurately reflect the corresponding data change patterns, the weight of the object to be weighed in the first weighing area can be accurately determined using the first calibration information.

[0014] In some embodiments, determining the weight information of the object to be weighed based on the weighing mode, the first weighing signal, and the second weighing signal further includes:

[0015] If it belongs to the second weighing mode, then obtain the second calibration information corresponding to the second weighing mode, and determine the weight value of the object to be weighed according to the second calibration information, the first voltage value and the second voltage value.

[0016] The first calibration information is different from the second calibration information.

[0017] By improving this method, the calibration information corresponding to different weighing modes can accurately reflect the corresponding data change patterns, thereby enabling the accurate determination of the weight of the object to be weighed in the second weighing area using the second calibration information.

[0018] In some embodiments, the method of obtaining the first calibration information includes:

[0019] Obtain the rated range;

[0020] Based on the rated range, a plurality of first calibrated weight values ​​are determined, and weighing is performed in the first weighing area based on the plurality of first calibrated weight values ​​to obtain the first calibration data and first weight information corresponding to the first set of weighing sensors and the second set of weighing sensors in the first weighing mode.

[0021] By improving this method, the first calibration information corresponding to the first weighing zone can be accurately obtained.

[0022] In some embodiments, the method of obtaining the second calibration information includes:

[0023] Based on the rated range, a plurality of second calibrated weight values ​​are determined, and weighing is performed in the second weighing area based on the plurality of second calibrated weight values ​​to obtain the second calibration data and second weight information corresponding to the first group of weighing sensors and the second group of weighing sensors in the second weighing mode.

[0024] By improving this method, the second calibration information corresponding to the second weighing zone can be accurately obtained.

[0025] This application embodiment also provides a food processor, including a base, a lower body disposed on the base, an upper body connected to the lower body, and a weighing module; the lower body and the upper body are respectively provided with a first weighing area and a second weighing area, the centers of gravity of the first weighing area and the second weighing area do not coincide in the vertical direction; the weighing module is disposed inside the base, the weighing module includes a first set of weighing sensors and a second set of weighing sensors; the first set of weighing sensors and the second set of weighing sensors are respectively located below the first weighing area and the second weighing area;

[0026] The weighing module is configured to: when an object to be weighed is detected, acquire a first weighing signal and a second weighing signal; wherein the first weighing signal and the second weighing signal are respectively from a first set of weighing sensors in a first weighing area and a second set of weighing sensors in a second weighing area;

[0027] A weighing mode is determined based on the first weighing signal and the second weighing signal, wherein the weighing mode is used to characterize that the object to be weighed is located in the first weighing area or the second weighing area.

[0028] The weight information of the object to be weighed is determined based on the weighing mode, the first weighing signal, and the second weighing signal.

[0029] The food processor of this application embodiment can, when detecting two weighing signals from the first weighing area and the second weighing area, first determine the weighing station where the object to be weighed is located, i.e., located in the first weighing area or the second weighing area, and then determine the weight information of the object to be weighed based on the weighing station and the weighing signal, thereby improving the accuracy of weighing the object.

[0030] In some embodiments, the weighing module is specifically configured as follows:

[0031] The first voltage value and the second voltage value corresponding to the first weighing signal and the second weighing signal are respectively acquired;

[0032] If the object to be weighed is determined to be located in the first weighing area based on the first voltage value and the second voltage value, then it belongs to the first weighing mode; otherwise, it belongs to the second weighing mode. The food processor of this application embodiment can accurately determine the weighing area of ​​the object to be weighed based on the first voltage value and the second voltage value, so as to achieve the beneficial effect of accurate weighing in the subsequent process.

[0033] In some embodiments, the weighing module is specifically configured as follows:

[0034] If it belongs to the first weighing mode, then obtain the first calibration information corresponding to the first weighing mode, and determine the weight value of the object to be weighed according to the first calibration information, the first voltage value and the second voltage value.

[0035] If the weighing mode is the second weighing mode, the second calibration information corresponding to the second weighing mode is obtained, and the weight value of the object to be weighed is determined according to the second calibration information, the first voltage value, and the second voltage value. Since the calibration information corresponding to different weighing modes can accurately reflect the corresponding data change patterns, the food processor of this application embodiment can accurately determine the weight value of the object to be weighed in the first weighing area or the second weighing area using the first calibration information or the second calibration information.

[0036] In some embodiments, the first set of weighing sensors and the second set of weighing sensors are each composed of two half-bridge weighing sensors connected in a full-bridge configuration. The food processing machine of this application embodiment utilizes two half-bridge weighing sensors to form two sets of full-bridge detection circuits. These two sets of full-bridge detection circuits accurately calibrate the sensor data change patterns at different workstations, thereby achieving accurate detection of objects to be weighed at different workstations.

[0037] The weighing method of this application, when detecting weighing signals from two weighing stations, first determines the weighing station, i.e., the weighing area, where the object to be weighed is located, and then determines the weight information of the object to be weighed based on the weighing station and the weighing signal, thereby improving the accuracy of weighing the object. Attached Figure Description

[0038] Figure 1 This is a flowchart of a weighing method according to an embodiment of this application;

[0039] Figure 2 This is a schematic diagram of the structure of the food processing machine according to an embodiment of this application;

[0040] Figure 3 This is a schematic diagram illustrating the processing principle of the food processor according to an embodiment of this application.

[0041] Explanation of reference numerals in the attached figures:

[0042] 10-Base; 12-First set of load cells; 13-Second set of load cells; 20-Lower body; 21-First weighing area; 30-Upper body; 31-Second weighing area. Detailed Implementation

[0043] Various embodiments and features of this application are described herein with reference to the accompanying drawings.

[0044] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this application will be apparent to those skilled in the art.

[0045] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0046] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0047] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0048] The above and other aspects, features and advantages of this application will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0049] Specific embodiments of this application are described thereafter with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this application, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use this application in a variety of substantially any suitable detailed structures.

[0050] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to this application.

[0051] Firstly, to facilitate understanding of this application, a weighing method provided in this application will be described in detail.

[0052] The weighing method provided in this application is applied to multifunctional food processors, such as blenders with juice cups. To achieve different food processing functions, weighing is required at different weighing stations. To ensure accurate weighing at each station, the weighing method includes: when an object to be weighed is detected, acquiring a first weighing signal and a second weighing signal; wherein the first weighing signal and the second weighing signal are respectively from a first set of weighing sensors in a first weighing area and a second set of weighing sensors in a second weighing area; determining a weighing mode based on the first weighing signal and the second weighing signal, wherein the weighing mode characterizes whether the object to be weighed is located in the first weighing area or the second weighing area; and determining the weight information of the object to be weighed based on the weighing mode, the first weighing signal, and the second weighing signal. By improving the weighing method, the weighing MCU can first determine the weighing station (i.e., the weighing area) where the object to be weighed is located when it detects the weighing signals of two weighing stations, and then determine the weight information of the object to be weighed based on the weighing station and the weighing signal, thereby improving the accuracy of weighing the object.

[0053] Figure 1 A flowchart illustrating a weighing method according to an embodiment of this application is shown. Figure 1 As shown, the weighing method in this application embodiment may specifically include the following steps S1-S3:

[0054] S1, when an object to be weighed is detected, a first weighing signal and a second weighing signal are acquired; wherein, the first weighing signal and the second weighing signal are respectively from the first set of weighing sensors in the first weighing area and the second set of weighing sensors in the second weighing area;

[0055] S2, determine the weighing mode based on the first weighing signal and the second weighing signal, wherein the weighing mode is used to characterize that the object to be weighed is located in the first weighing area or the second weighing area;

[0056] S3, determine the weight information of the object to be weighed based on the weighing mode, the first weighing signal and the second weighing signal.

[0057] In this embodiment, the food processor includes two weighing zones: a first weighing zone 21 and a second weighing zone 31. A weighing module (not shown) is located inside the base 10 of the food processor. The weighing module includes a weighing MCU, a first set of weighing sensors 12, and a second set of weighing sensors 13. The first set of weighing sensors 12 and the second set of weighing sensors 13 are arranged corresponding to the areas of the first weighing zone 21 and the second weighing zone 31. The centers of gravity of the first weighing zone 21 and the second weighing zone 31 do not coincide in the vertical direction; that is, their centers of gravity do not completely overlap. The first set of weighing sensors 12 and the second set of weighing sensors 13 are each composed of two half-bridge weighing sensors, connected in a two-full-bridge configuration to form two independent full-bridge detection circuits.

[0058] When the object to be weighed is placed in the first weighing area or the second weighing area, the weighing MCU of the food processor can detect the object to be weighed through the first set of weighing sensors and the second set of weighing sensors, and can obtain the first weighing signal and the second weighing signal respectively from the first set of weighing sensors and the second set of weighing sensors.

[0059] Then, the weighing module first determines the weighing area where the object to be weighed is located based on the first weighing signal and the second weighing signal, that is, determines the corresponding weighing mode, so that the weight of the object to be weighed can be determined based on the weighing mode.

[0060] In some embodiments, the weighing mode is divided into a first weighing mode and a second weighing mode depending on whether the object to be weighed is located in a first weighing area or a second weighing area, so that the weighing MCU can determine the weight of the object to be weighed based on the first weighing signal and the second weighing signal in the first weighing mode or the second weighing mode.

[0061] In some specific applications, the weighing mode is determined based on the first weighing signal and the second weighing signal, including:

[0062] The first voltage value and the second voltage value corresponding to the first weighing signal and the second weighing signal are respectively acquired;

[0063] If the object to be weighed is determined to be located in the first weighing area based on the first voltage value and the second voltage value, then it belongs to the first weighing mode; otherwise, it belongs to the second weighing mode.

[0064] In this embodiment, the inventors considered that if the object to be weighed is in the first weighing zone, the first set of weighing sensors corresponding to the first weighing zone will bear greater pressure than the second set of weighing sensors; similarly, if the object to be weighed is in the second weighing zone, the second set of weighing sensors corresponding to the second weighing zone will bear greater pressure than the first set of weighing sensors. The sensor bearing greater pressure will experience greater deformation, and correspondingly, the weight value corresponding to the weighing signal (analog voltage signal) sent by that weighing sensor will also be greater. Therefore, in this embodiment, when acquiring the first and second weighing signals, the first and second weighing signals can be converted into digital voltage signals to obtain corresponding first and second voltage values. The weight of the object to be weighed is then estimated based on the first and second voltage values, compared with the estimated weight values, and finally, the comparison result determines whether the object to be weighed is in the first or second weighing zone, thereby determining the corresponding weighing mode.

[0065] In some practical applications, when estimating the weight of the object to be weighed based on the first and second voltage values, the calibration methods for weighing sensors in existing technologies can be combined to obtain calibration curves for the first and second sets of weighing sensors. The weight of the object to be weighed can then be estimated using these calibration curves based on the first and second voltage values, resulting in a first estimated weight value and a second estimated weight value. The first and second estimated weight values ​​are then compared. If the first estimated weight value is greater than the second estimated weight value, the object to be weighed is determined to be located in the first weighing area and belongs to the first weighing mode; if the first estimated weight value is less than the second estimated weight value, the object is determined to be located in the second weighing area and belongs to the second weighing mode.

[0066] The weighing module of this application embodiment stores calibration information of a first set of weighing sensors and a second set of weighing sensors. Therefore, in some specific applications, the weighing module can obtain the calibration curves of the first set of weighing sensors and the second set of weighing sensors according to the stored calibration information, and then estimate the weight of the object to be weighed using the corresponding calibration curves based on the first voltage value and the second voltage value.

[0067] It is understandable that the calibration curves of a weighing sensor can have different slopes in different weighing intervals. Different weighing intervals correspond to different voltage value intervals. For example, weighing intervals such as 0-500g, 500g-1000g, and 1000g-1500g have their own corresponding voltage value intervals, and the slopes of the curves corresponding to each weighing interval can be different. Therefore, when estimating the weight of the object to be weighed using the calibration curves based on the first and second voltage values, the slopes can be determined based on the positions of the first and second voltage values ​​on their respective calibration curves. Then, the weight of the object to be weighed can be estimated based on these slopes to obtain the first and second estimated weight values. Alternatively, after determining the slopes of the curve segments corresponding to the first and second voltage values, the average slope can be calculated based on these slopes. Then, the weight of the object to be weighed can be estimated based on the average slope to obtain the first and second estimated weight values.

[0068] In this embodiment of the application, under different weighing modes, the calibration curves and other data corresponding to the first set of weighing sensors and the second set of weighing sensors, as well as the calibration information such as the weight coefficients allocated between them are different. Therefore, after determining the weighing mode (i.e., whether the object to be weighed is located in the first weighing area or the second weighing area), the weighing MCU can determine the weight information of the object to be weighed based on the determined weighing mode, the first weighing signal and the second weighing signal.

[0069] In some embodiments, determining the weight information of the object to be weighed based on the weighing mode, the first weighing signal, and the second weighing signal includes:

[0070] If it belongs to the first weighing mode, then obtain the first calibration information corresponding to the first weighing mode, and determine the weight value of the object to be weighed according to the first calibration information, the first voltage value and the second voltage value.

[0071] In this embodiment, under the first weighing mode, i.e., when the object to be weighed is located in the first weighing area, the first calibration information includes the calibration data of the first set of weighing sensors and the second set of weighing sensors when weighing the object, as well as the weighting coefficients allocated between them. The first calibration information can be obtained in advance under the first weighing mode by calibrating the first set of weighing sensors and the second set of weighing sensors, and stored in the weighing MCU for recall by the weighing MCU after acquiring the weighing signal and determining the weighing mode.

[0072] Therefore, when the weighing MCU determines that it is currently in the first weighing mode, it calls the first calibration information corresponding to the first weighing mode, and determines the corresponding weight information by combining the first voltage value and the second voltage value. Then, it performs weighted calculation based on the weight information of the first set of weighing sensors and the second set of weighing sensors, combined with the corresponding weight coefficients in the first mode, to accurately obtain the weight value of the object to be weighed.

[0073] In some embodiments, the method of obtaining the first calibration information includes:

[0074] Obtain the rated range;

[0075] Based on the rated range, a plurality of first calibrated weight values ​​are determined, and weighing is performed in the first weighing area based on the plurality of first calibrated weight values ​​to obtain the first calibration data and first weight information corresponding to the first set of weighing sensors and the second set of weighing sensors in the first weighing mode.

[0076] In this embodiment, in order to obtain the first calibration information, the rated range of the first set of weighing sensors and the second set of weighing sensors can be obtained first. When determining the rated range in this embodiment, the method of determining the rated range of multiple sensors in the prior art can be referred to, which will not be repeated here.

[0077] When determining multiple first calibration weight values ​​based on the rated range, each value of the first calibration weight value can be determined based on the experience of technicians or according to actual needs; this application does not impose any limitations on this. Then, based on each value of the first calibration weight value, weights or other objects of corresponding weights are selected for weighing and calibration in the first weighing area, and the weighing signals corresponding to the first set of weighing sensors and the second set of weighing sensors at each value are recorded. Based on each weighing signal, corresponding voltage or current values ​​are determined, and a suitable mathematical function is used for fitting to obtain the corresponding calibration curves of the first set of weighing sensors and the second set of weighing sensors, as well as the corresponding weighting coefficients assigned to them. This yields the first calibration data and first weighting information corresponding to the weighing in the first weighing area.

[0078] In some embodiments, determining the weight information of the object to be weighed based on the weighing mode, the first weighing signal, and the second weighing signal further includes:

[0079] If it belongs to the second weighing mode, then obtain the second calibration information corresponding to the second weighing mode, and determine the weight value of the object to be weighed according to the second calibration information, the first voltage value and the second voltage value.

[0080] The first calibration information is different from the second calibration information.

[0081] In this embodiment, under the second weighing mode, i.e., when the object to be weighed is located in the second weighing area, the second calibration information includes the calibration data of the first set of weighing sensors and the second set of weighing sensors when weighing the object, as well as the weighting coefficients assigned between them. The second calibration information can be obtained in advance under the second weighing mode by calibrating the first set of weighing sensors and the second set of weighing sensors, and stored in the weighing MCU for recall by the weighing MCU after acquiring the weighing signal and determining the weighing mode.

[0082] When the weighing MCU determines that it is currently in the second weighing mode, it calls the second calibration information corresponding to the second weighing mode, and determines the corresponding weight information by combining the first voltage value and the second voltage value. Then, it performs a weighted calculation based on the weight information of the first set of weighing sensors and the second set of weighing sensors, combined with the corresponding weight coefficients in the second mode, to accurately obtain the weight value of the object to be weighed.

[0083] In some embodiments, the method of obtaining the second calibration information includes:

[0084] Based on the rated range, a plurality of second calibrated weight values ​​are determined, and weighing is performed in the second weighing area based on the plurality of second calibrated weight values ​​to obtain the second calibration data and second weight information corresponding to the first group of weighing sensors and the second group of weighing sensors in the second weighing mode.

[0085] In this embodiment, when determining multiple second calibration weight values ​​based on the rated range, each value of the second calibration weight value can be determined based on the experience of technicians or according to actual needs, and can be the same as or different from the first calibration weight value. This application does not limit this. The method of obtaining the second calibration information can refer to the aforementioned method of obtaining the first calibration information, and will not be repeated here in this embodiment, in order to obtain the first calibration data and first weight information corresponding to the weighing in the first weighing area.

[0086] This application also provides a food processing machine, such as... Figure 2 As shown, it includes a base 10, a lower body 20 mounted on the base, an upper body 30 connected to the lower body, and a weighing module (not shown). The lower body 20 and the upper body 30 are respectively provided with a first weighing area 21 and a second weighing area 31. The centers of gravity of the first weighing area 21 and the second weighing area 31 do not coincide in the vertical direction, that is, their centers of gravity do not completely overlap. The weighing module (not shown) is located inside the base and is used to support the other components of the entire food processor. The weighing module includes a first set of weighing sensors 12 and a second set of weighing sensors 13; the first set of weighing sensors 12 and the second set of weighing sensors 13 are respectively located below the first weighing area 21 and the second weighing area 31.

[0087] The weighing module is configured to: when an object to be weighed is detected, acquire a first weighing signal and a second weighing signal; wherein the first weighing signal and the second weighing signal are respectively from a first set of weighing sensors in a first weighing area and a second set of weighing sensors in a second weighing area;

[0088] A weighing mode is determined based on the first weighing signal and the second weighing signal, wherein the weighing mode is used to characterize that the object to be weighed is located in the first weighing area or the second weighing area.

[0089] The weight information of the object to be weighed is determined based on the weighing mode, the first weighing signal, and the second weighing signal.

[0090] In some embodiments, the weighing module is specifically configured as follows:

[0091] The first voltage value and the second voltage value corresponding to the first weighing signal and the second weighing signal are respectively acquired;

[0092] Compare the first voltage value and the second voltage value. If the first voltage value is greater than the second voltage value, then the object to be weighed is determined to be located in the first weighing area and belongs to the first weighing mode; otherwise, it belongs to the second weighing mode.

[0093] In some embodiments, the weighing module is specifically configured as follows:

[0094] If it belongs to the first weighing mode, then obtain the first calibration information corresponding to the first weighing mode, and determine the weight value of the object to be weighed according to the first calibration information, the first voltage value and the second voltage value.

[0095] If it belongs to the second weighing mode, then the second calibration information corresponding to the second weighing mode is obtained, and the weight value of the object to be weighed is determined according to the second calibration information, the first voltage value and the second voltage value.

[0096] The principle of the food processing machine in the various embodiments of this application for solving the multi-station weighing problem is similar to the weighing method described above in this application. Therefore, the implementation of the food processing machine can refer to the implementation of the weighing method, and the repeated parts will not be described again.

[0097] In some embodiments, see Figure 3As shown, the first group of weighing sensors and the second group of weighing sensors are each composed of two half-bridge weighing sensors connected in a full-bridge configuration. Specifically, the first group of weighing sensors and the second group of weighing sensors are each composed of two half-bridge weighing sensors, and each is connected in a full-bridge configuration to form two independent full-bridge detection circuits. Thus, the first group of weighing sensors and the second group of weighing sensors can independently send their measured weighing signals (analog voltage signals) to the weighing module.

[0098] For example, during weighing, the first and second sets of weighing sensors send a first weighing signal and a second weighing signal to the weighing MCU, respectively. The weighing MCU amplifies and processes the first and second weighing signals using corresponding amplifier circuits and ADC chips 1 and 2, respectively, amplifying the analog voltage signals and converting them into digital signals to obtain corresponding first and second voltage values. Then, the weighing MCU can use existing methods for calibrating weighing sensors to obtain calibration curves for the first and second sets of weighing sensors. Using these calibration curves, the MCU estimates the weight of the object to be weighed based on the first and second voltage values, obtaining and comparing the estimated weight values ​​for each sensor. Based on the comparison results, the weighing mode is determined, i.e., whether the object to be weighed is located in the first or second weighing zone. Thus, the weighing MCU can determine the calibration curves and weighting coefficients applied to the first and second sets of weighing sensors in that weighing mode, and determine the weight of the object to be weighed based on the determined calibration curves, weighting coefficients, and the first and second voltage values. Finally, the weighing MCU sends the weight value of the object to be weighed to the main control MCU, so that the main control MCU can control the display module to display the weight value to the user.

[0099] Furthermore, although exemplary embodiments have been described herein, their scope includes any and all embodiments based on this application that have equivalent elements, modifications, omissions, combinations (e.g., schemes involving intersections of various embodiments), adaptations, or alterations. Elements in the claims will be interpreted broadly based on the language used in the claims and are not limited to the examples described in this specification or during the implementation of this application, which will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered illustrative only, and the true scope and spirit are indicated by the full scope of the following claims and their equivalents.

[0100] The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. Other embodiments can be used by those skilled in the art when reading the above description. Furthermore, in the above detailed description, various features may be grouped together to simplify the application. This should not be construed as an intention that a disclosed feature not claimed is necessary for any claim. Rather, the subject matter of the application may be less than all the features of a particular disclosed embodiment. Thus, the following claims are incorporated herein by reference as examples or embodiments, wherein each claim is an independent, separate embodiment, and these embodiments are contemplated to be combined with each other in various combinations or arrangements. The scope of this application should be determined by reference to the appended claims and the full scope of their equivalents.

[0101] The foregoing has described in detail several embodiments of this application, but this application is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications based on the concept of this application, and all such variations and modifications should fall within the scope of protection claimed in this application.

Claims

1. A weighing method applied to a food processing machine, characterized in that, include: When an object to be weighed is detected, a first weighing signal and a second weighing signal are acquired; wherein, the first weighing signal and the second weighing signal are respectively from the first set of weighing sensors in the first weighing area and the second set of weighing sensors in the second weighing area; A weighing mode is determined based on the first weighing signal and the second weighing signal, wherein the weighing mode is used to characterize that the object to be weighed is located in the first weighing area or the second weighing area. The weight information of the object to be weighed is determined based on the weighing mode, the first weighing signal, and the second weighing signal. The weighing mode includes a first weighing mode and a second weighing mode; Determining the weighing mode based on the first weighing signal and the second weighing signal includes: The first voltage value and the second voltage value corresponding to the first weighing signal and the second weighing signal are respectively acquired; If the object to be weighed is determined to be located in the first weighing area based on the first voltage value and the second voltage value, then it belongs to the first weighing mode; otherwise, it belongs to the second weighing mode. Determining the weight information of the object to be weighed based on the weighing mode, the first weighing signal, and the second weighing signal includes: If it belongs to the first weighing mode, then obtain the first calibration information corresponding to the first weighing mode, and determine the weight value of the object to be weighed according to the first calibration information, the first voltage value and the second voltage value. Determining the weight information of the object to be weighed based on the weighing mode, the first weighing signal, and the second weighing signal further includes: If it belongs to the second weighing mode, then obtain the second calibration information corresponding to the second weighing mode, and determine the weight value of the object to be weighed according to the second calibration information, the first voltage value and the second voltage value. Wherein, the first calibration information is different from the second calibration information; The methods for obtaining the first calibration information include: Obtain the rated range; Based on the rated range, a plurality of first calibrated weight values ​​are determined, and weighing is performed in the first weighing area based on the plurality of first calibrated weight values ​​to obtain the first calibration data and first weight information corresponding to the first group of weighing sensors and the second group of weighing sensors in the first weighing mode. The methods for obtaining the second calibration information include: Based on the rated range, a plurality of second calibrated weight values ​​are determined, and weighing is performed in the second weighing area based on the plurality of second calibrated weight values ​​to obtain the second calibration data and second weight information corresponding to the first group of weighing sensors and the second group of weighing sensors in the second weighing mode.

2. A food processing machine, characterized in that, To implement the weighing method of claim 1, the food processor includes a base, a lower body disposed on the base, an upper body connected to the lower body, and a weighing module; the lower body and the upper body are respectively provided with a first weighing area and a second weighing area, the centers of gravity of the first weighing area and the second weighing area do not coincide in the vertical direction; the weighing module is disposed inside the base, the weighing module includes a first set of weighing sensors and a second set of weighing sensors; the first set of weighing sensors and the second set of weighing sensors are respectively located below the first weighing area and the second weighing area; The weighing module is configured to: when an object to be weighed is detected, acquire a first weighing signal and a second weighing signal; wherein the first weighing signal and the second weighing signal are respectively from a first set of weighing sensors in a first weighing area and a second set of weighing sensors in a second weighing area; A weighing mode is determined based on the first weighing signal and the second weighing signal, wherein the weighing mode is used to characterize that the object to be weighed is located in the first weighing area or the second weighing area. The weight information of the object to be weighed is determined based on the weighing mode, the first weighing signal, and the second weighing signal.

3. The food processing machine according to claim 2, characterized in that, The weighing module is specifically configured as follows: The first voltage value and the second voltage value corresponding to the first weighing signal and the second weighing signal are respectively acquired; If it is determined based on the first voltage value and the second voltage value that the object to be weighed is located in the first weighing area, it belongs to the first weighing mode; Otherwise, it falls under the second weighing mode.

4. The food processing machine according to claim 3, characterized in that, The weighing module is specifically configured as follows: If it belongs to the first weighing mode, then obtain the first calibration information corresponding to the first weighing mode, and determine the weight value of the object to be weighed according to the first calibration information, the first voltage value and the second voltage value. If it belongs to the second weighing mode, then the second calibration information corresponding to the second weighing mode is obtained, and the weight value of the object to be weighed is determined according to the second calibration information, the first voltage value and the second voltage value.

5. The food processing machine according to any one of claims 2-4, characterized in that, The first group of weighing sensors and the second group of weighing sensors are each composed of two half-bridge weighing sensors connected in a full-bridge manner.

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