Water inlet detection method of a noodle machine and noodle machine

Abstract

The application discloses a kind of noodle machine water inlet detection method and noodle machine, the method includes detecting whether to start water inlet mode, water inlet mode includes and knead water or make noodles water inlet;If yes, start water pump operation and detect the water intake of stirring cup.The noodle machine water inlet detection method and noodle machine disclosed in the embodiment of the application can improve the success rate of noodle machine production.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of kitchen appliances, and particularly to a water inlet detection method of a noodle maker. BACKGROUND

[0002] At present, noodle makers, such as automatic water adding noodle machines, generally have a built-in water tank to provide a water source for making noodles. After the flour is added, the water pump automatically adds water to achieve the purpose of automatic noodle making. When the water tank is out of water, the customer needs to be prompted to lack water alarm to prevent the lack of water from causing noodle making failure, dry powder damage to the die and other problems. Therefore, water inlet detection is needed. The existing water inlet detection schemes generally include:

[0003] 1. Using a float stop valve combined with an external magnetic control switch, or using a float ball structure, the float stop valve and the float ball are built into the water tank and will float up and down with the water level. When the water level decreases to a certain extent, the magnetic control switch or the related structure gives a switching signal, thereby prompting the lack of water alarm.

[0004] 2. Using a contact or non-contact capacitive water level sensor, the sensor detects different capacitances when the water tank has water and no water, and the water level is determined by the capacitance value.

[0005] 3. Increasing the water pump working current detection circuit, which determines whether there is water by the difference between the current of the empty load and the current of the load.

[0006] 4. Using a flowmeter to detect whether it is empty pumping and other detection schemes.

[0007] However, the above schemes have the following disadvantages:

[0008] 1. The float stop valve and other structures are built into the water tank and are in contact with the water source for a long time, which is easy to breed bacteria and affect the water quality.

[0009] 2. The sensor detection device structure is complex and the cost is high.

[0010] 3. The capacitive water level sensor is easily affected by the environment temperature and has poor reliability.

[0011] 4. The water pump detection current scheme needs an additional current detection circuit, which has a high cost. SUMMARY

[0012] In a first aspect, the embodiments of the present application provide a water inlet detection method of a noodle maker. The noodle maker includes a base and a stirring assembly arranged on the base. The base is provided with a motor. The stirring assembly includes a stirring cup, a stirrer and a cup cover. The noodle maker further includes a water tank, a water pump for pumping water from the water tank, and a Hall element for detecting the rotating speed of the water pump. The method comprises the following steps:

[0013] detecting whether a water inlet mode is started, the water inlet mode including dough water inlet or noodle water inlet;

[0014] If yes, the water pump is started to run and the water inlet amount of the stirring cup is detected.

[0015] In a second aspect, the embodiments of the present application provide a noodle machine, including a base and a stirring assembly arranged on the base, the base being internally provided with a motor, the stirring assembly including a stirring cup, a stirrer and a cup cover, and the noodle machine further including a water tank, a water pump for pumping water from the water tank and a Hall element for detecting the rotating speed of the water pump; the noodle machine further includes a master control chip for executing the water inlet detection method of the noodle machine as described in any of the embodiments of the first aspect.

[0016] The water inlet detection method of the noodle machine and the noodle machine provided by at least one embodiment of the present application have the following beneficial effects compared with the prior art: when the noodle machine is in the process of dough water inlet or noodle water inlet, the master control chip controls the water pump to run and detects the water inlet amount of the stirring cup, so that the liquid capacity added to the stirring cup of the noodle machine can be known in real time, the success rate of the noodle machine is improved, and the user experience is improved.

[0017] In some embodiments of the embodiments of the present application, the following effects can also be achieved:

[0018] 1. In the process of dough water inlet or noodle water inlet, whether the water tank has water can be determined by the pulse width output by the Hall element when the water pump is running, so that the deviation between the water inlet amount of the stirring cup and the required water inlet amount caused by water shortage in the process of dough water inlet or noodle water inlet can be avoided, and the toughness or molding of the finished noodle can be affected.

[0019] 2. The Hall element for controlling water amount provided on the water pump is used to detect the empty pumping and load state of the water pump, without additional hardware cost, and the empty pumping and load state can be realized only by software detection of pulse width, so that the water shortage alarm effect is achieved, the structure is simple and the cost is low. In addition, the embodiment does not have a structure built-in the water tank, so that water pollution is reduced.

[0020] 3. The pulse width of the water pump based on big data testing, that is, the pulse width in a preset time period is taken, a plurality of pulse width groups are stored, each pulse width group includes a plurality of pulse widths, and whether there is water can be determined by the plurality of pulse widths in the plurality of pulse width groups, so that the abnormal value can be weakened, the accuracy of the determination can be ensured, and the determination reliability can be enhanced.

[0021] 4. Due to the difference between the water pump and the components, the pulse width of the water pump of different noodle machines when pumping water is different, and the embodiment realizes automatic calibration of the pulse width interval of water pumping and empty load of each noodle machine by combining the automatic cleaning function of the production line, so that the misjudgment can be reduced and the detection reliability can be improved.

[0022] 5. The pulse width group number n and the pulse number N in each group can be determined according to the liquid pressure at the inlet and outlet of the water pump, so that the water pump can be used to pump out the water in the inlet and outlet pipes, and the invalid data can be filtered out to reduce the misjudgment.

[0023] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. Other advantages of the application can be realized and attained by means of the instrumentalities and combinations particularly pointed out in the description and appended claims. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are used to explain the technical solutions of the application, and do not constitute a limitation on the technical solutions of the application.

[0025] Figure 1 A flow chart of the water inlet detection method of the noodle machine provided in the first embodiment of the application is shown in FIG. 1;

[0026] Figure 2 A circuit schematic diagram of the water pump driving module provided in the embodiment of the application is shown in FIG. 2;

[0027] Figure 3 A principle block diagram of the water pump pulse detection provided in the embodiment of the application is shown in FIG. 3;

[0028] Figure 4 A principle circuit diagram of the water pump pulse detection provided in the embodiment of the application is shown in FIG. 4;

[0029] Figure 5 A flow chart of the water inlet detection method of the noodle machine provided in the first embodiment of the application is shown in FIG. 1;

[0030] Figure 6 A flow chart of the water pump pulse width calibration provided in the embodiment of the application is shown in FIG. 5. DETAILED DESCRIPTION

[0031] The present application describes a plurality of embodiments, but the description is exemplary rather than limiting, and it is obvious to those skilled in the art that there can be more embodiments and implementation schemes within the scope of the embodiments described in the present application. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Unless specifically limited, any feature or element of any embodiment can be used in combination with any other feature or element of any other embodiment, or can replace any other feature or element of any other embodiment.

[0032] This application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features, and elements disclosed herein can also be combined with any conventional feature or element to form a unique application defined by the claims. Any feature or element of any embodiment can also be combined with features or elements from other application to form another unique application defined by the claims. Therefore, it should be understood that any feature shown and / or discussed in this application can be implemented alone or in any appropriate combination. Embodiments are, therefore, not to be limited by any of the foregoing materially set forth, except in accordance with the limits set forth in the appended claims and their equivalents. Moreover, various modifications and changes can be made within the scope of the claims.

[0033] Furthermore, in describing representative embodiments, the specification can have presented the method and / or process as a particular sequence of steps. However, to the extent that the method or process depends on the performance of certain steps, the method or process is not limited to the performance of the steps in the specific order described. One of ordinary skill in the art would realize that other step orders are possible. Therefore, the specific order of steps set forth in the specification should not be construed as limitations on the claims. Moreover, the claims should not be limited by the steps of the methods and / or processes in the specific order presented, as one of ordinary skill in the art would understand that the steps of the methods and / or processes can be changed, modified, and / or omitted in various ways without departing from the spirit and scope of the application.

[0034] The embodiment of the application provides a kind of noodle machine, can include base and be set on base stirring assembly, motor is arranged in base, stirring assembly includes stirring cup, stirrer and cup cover.Wherein, stirring cup and cup cover cooperate to form processing cavity, the output shaft of motor extends into processing cavity, stirrer is located in processing cavity and is connected on the output shaft of motor, motor starts after driving stirrer rotation, to realize and face, knead and flour group etc. Operation in processing cavity.

[0035] In the embodiment, the noodle machine can further include a water tank, a water pump for pumping water from the water tank, and a Hall element for detecting the rotation speed of the water pump. The water in the water tank can be pumped into the processing cavity by the water pump to realize automatic water feeding of the noodle machine.

[0036] In the embodiment, the noodle machine can further include a main control chip, which is used to execute the water feeding detection method of the noodle machine provided by the embodiment of the application. The specific execution process can be referred to the following embodiment. The main control chip can be a microcontroller unit (MCU).

[0037] Based on the noodle machine shown in the above embodiment, the embodiment of the application further provides a water feeding detection method of a noodle machine, Figure 1The flowchart of the water inlet detection method of the noodle maker provided in Embodiment One is shown in Figure 1 The water inlet detection method of the noodle maker provided in this embodiment can have a main control chip as the execution subject, and the specific steps can include:

[0038] S101: Detect whether the water inlet mode is started. The water inlet mode includes dough mixing water inlet or noodle making water inlet.

[0039] In actual applications, liquid (such as water, egg liquid, or vegetable juice, etc.) needs to be added into the stirring cup (or processing cavity) when the noodle maker is mixing dough or making noodles, so as to complete the dough mixing or noodle making. The noodle maker, including a noodle maker, generally has an automatic water inlet system such as a water tank and a water pump, which realizes automatic pumping of the liquid (such as water, egg liquid, or vegetable juice, etc.) in the water tank to the stirring cup, so as to stir with the food materials (such as flour, rice flour, corn flour, or starch, etc.) previously poured into the stirring cup to make noodles or dumpling wrappers and other noodles.

[0040] However, the automatic water inlet system provided in the noodle maker has the following characteristics compared with the automatic water inlet system in the remaining devices (such as a full-automatic intelligent rice cooker or a food processor, etc.): The amount of liquid added into the stirring cup of the noodle maker directly affects the toughness or molding of the noodles, which is the key to whether the noodle maker successfully makes noodles. Therefore, the precision requirement of the liquid capacity added into the stirring cup of the noodle maker is very high; while the amount of liquid added by the automatic water inlet system in the remaining devices only affects the taste (such as thick or dilute) of the food, and the precision requirement of the liquid capacity is relatively low.

[0041] In this embodiment, the processing mode of the noodle maker can be monitored in real time during the working process of the noodle maker to determine whether the noodle maker starts the water inlet mode. In an example, it can be monitored in real time whether the dough mixing button or the noodle making button is triggered, and if it is triggered, it is determined that the noodle maker starts the water inlet mode.

[0042] S102: If yes, start the water pump to run and detect the water inlet amount of the stirring cup.

[0043] In this embodiment, when it is monitored that the noodle maker starts the water inlet mode, i.e. needs automatic water inlet, the main control chip can control the water pump to run and detect the water inlet amount of the stirring cup, so as to know the liquid capacity added into the stirring cup of the noodle maker in real time, improve the success rate of the noodle maker, and further improve the user experience.

[0044] In an example, the water inlet amount of the stirring cup can be detected by the main control chip cooperating with the flowmeter. In this embodiment, the flowmeter can feed back the water amount through the Hall pulse signal to detect the water inlet amount of the stirring cup.

[0045] In an example, the water inlet amount of the stirring cup can be detected by the master control chip cooperating with the fixed volume of the pipeline. In this embodiment, the volume of the water inlet pipeline between the water tank and the stirring cup can be selected as the minimum calculation unit of the water inlet amount of the stirring cup, and the total volume of the water inlet amount of the stirring cup can be obtained by multiple accumulations according to the water pumping times of the water pump.

[0046] In this embodiment, the master control chip can control the operation of the water pump by using the existing technology, for example, the master control chip can control the operation of the water pump by using the water pump driving module. Figure 2 The circuit schematic diagram of the water pump driving module provided in this embodiment is shown in FIG. 1. Figure 2 As shown in FIG. 1, the water pump driving module can include an optocoupler U101 and a metal oxide semiconductor field effect transistor (MOS tube) Q101. The P_PUMP end of the optocoupler U101 is connected to an input / output (I / O) port of the master control chip. The master control chip controls the on-off of the MOS tube Q101 by the high-low level of the I / O port, thereby driving the start-stop of the water pump.

[0047] In this embodiment, the master control chip can control the operation of the water pump by using the existing technology, for example, the master control chip can control the operation of the water pump by using the water pump driving module. Figure 2 The CN101 in FIG. 1 is a terminal for connecting the water pump. The D101 is a freewheeling diode for preventing the reverse electromotive force generated when the water pump is turned off from breaking the MOS tube. The R101 or R102 is a pull-up resistor for ensuring that the port level is high and simultaneously playing a role of current limiting resistor. The R103 is a gate resistor for changing the leading and trailing edge steepness of the gate input control pulse of the MOS tube and preventing the oscillation formed by the parasitic capacitance and inductance. The R104 is a discharge resistor for eliminating static electricity, preventing the leakage current or interference from causing the MOS tube to be mistakenly started, and increasing the reliability of the circuit.

[0048] The water inlet detection method of the noodle machine provided in this embodiment can be used to control the operation of the water pump and detect the water inlet amount of the stirring cup when the noodle machine is in the process of adding water for kneading or making noodles. The liquid volume added into the stirring cup of the noodle machine can be obtained in real time, the success rate of making noodles by the noodle machine is improved, and the user experience is improved.

[0049] In an example embodiment of the present application, when detecting the water inlet amount of the stirring cup, the method can further include: monitoring the pulse width output by the Hall element during the operation of the water pump; and determining whether the water tank is out of water according to the pulse width.

[0050] In this embodiment, the pulse width output by the Hall element during the operation of the water pump can be used to determine whether the water tank has water during the process of adding water for kneading or making noodles. The deviation between the water inlet amount of the stirring cup and the required water inlet amount caused by the lack of water during the process of adding water for kneading or making noodles can be avoided, and the strength or shape of the finished noodles can be affected.

[0051] Figure 3A principle block diagram of water pump pulse detection provided by the embodiment of the present application, Figure 4 A principle circuit diagram of water pump pulse detection provided by the embodiment of the present application is shown in Figure 3 and Figure 4 The Hall element 4 can be installed on the water pump 1, such as the tail of the water pump, and the Hall element port HALL is connected to the master control chip. The Hall element U201 detects the water pump pulse on-off, and transmits the detected signal to the master control chip. The master control chip controls the start and stop of the water pump according to the signal output by the Hall element, and processes the feedback information of the pulse signal. As shown in Figure 2 The water pump 1 is also provided with a water inlet 2 and a water outlet 3.

[0052] In actual application, when the water pump is working, the Hall element detects that there is a big difference in pulse width between load and no load. In this embodiment, by detecting the pulse width of the Hall element during the operation of the water pump, it can be judged whether the pipeline has pumped water, so as to alarm the water shortage.

[0053] In actual application, the water pump is powered by 12V, and the pulse width of the water pump in one cycle can be 8-10ms when pumping empty, and the pulse width of the water pump in one cycle can be 13-15ms when pumping under load. In this embodiment, the pulse width is sampled after the water pump is started, and the pulse width of the Hall element pulse cycle is different in the working state and the load state, so as to detect whether there is water shortage. For example, if the pulse width is in the load pulse interval, it is judged that there is water, if it is not in the load pulse interval, it is judged that the load is abnormal, and the water shortage is alarmed.

[0054] This embodiment uses the water pump and the original Hall element, only needs to increase a time sampling of the software timer, and increase a pulse number count of the external interrupt, judges whether there is water shortage or water according to the pulse width, does not need additional hardware cost, only needs to detect the pulse width by software to realize the empty pumping and the load state, and does not need to embed the float stop valve and other detection devices in the water tank.

[0055] Among them, Figure 3 CN201 is a terminal for connecting to the master control chip to input the detected Hall signal to the master control chip. R106 and R107 are current limiting resistors, and R106 and R107 are connected in parallel, which can reduce the heating of the resistor.

[0056] The water inlet detection method of the noodle machine provided by the embodiment of the present application detects the empty pumping and load state of the water pump by the Hall element for controlling water volume on the water pump of the existing structure, does not need additional hardware cost, only needs to detect the pulse width by software to realize the empty pumping and the load state, achieves the effect of water shortage alarm, has simple structure and low cost. In addition, the embodiment has no structure embedded in the water tank, which reduces water pollution.

[0057] In an example embodiment of the present application, determining whether the water tank is short of water according to the pulse width can include: collecting the pulse width in a preset time period, and determining whether the water tank is short of water according to the pulse width in the preset time period.

[0058] In the embodiment, the pulse width of the water pump based on big data testing, i.e., the pulse width in a preset time period, is stored in an array multiple times, each pulse width array includes multiple pulse widths, real-time data is stored by array dynamic shift to weaken abnormal values, and the accuracy of the determination is ensured by multiple abnormal value taking to reduce misjudgment and enhance the reliability of the determination.

[0059] The preset time period can be set according to an experience value or a simulation result, for example, but is not limited to, about 1.75 s.

[0060] In an example, Figure 5 The flowchart of the water inlet detection method of the noodle machine provided in the embodiment of the present application is shown in FIG. 2, and the method can specifically include the following steps. Figure 5

[0061] S501: determining whether the water pump is started. If yes, S502 is executed; otherwise, the determination is continued.

[0062] S502: sampling the falling edge pulse width of the continuous Hall signal and storing the pulse width in an array, and comparing the filtered multiple sets of data with a threshold value set by the program (the determination is continuously performed during the operation).

[0063] S503: determining whether the pulse width is in the load pulse width interval. If yes, S502 is executed; otherwise, S504 is executed.

[0064] S504: short water alarm.

[0065] In the embodiment, the pulse width in a preset time period is collected, and whether the water tank is short of water is determined according to the pulse width in the preset time period, which can include:

[0066] n pulse width arrays are collected in the preset time period, each pulse width array includes N pulse widths, n is greater than or equal to 1, and N is greater than 1; whether each pulse width array meets the pulse width condition is determined; when a pulse width arrays do not meet the pulse width condition, it is determined that the water tank is short of water, and 0

[0067] In the embodiment, the pulse value is sampled and filtered after the water pump is started, and if the filtered value is in the load pulse interval, it is determined that there is water, and if the filtered value is not in the pulse interval, it is determined that there is an empty load abnormality, and a short water alarm is given. The filtering method is as follows:

[0068] ​The falling edge pulse record time collected by the Hall element is recorded once, and N record times can be selected according to actual needs, and the pulse width is 3-X, and multiple pulse widths are taken once to ensure accuracy and exclude abnormal conditions. In this case, X can be but not limited to 7 pulse periods to record pulse width data once, and one pulse period corresponds to one pulse width.

[0069] The collected pulse width is stored in the array a[1], the next pulse width is taken and stored in the array a[2], and the array a[n] is taken in turn. In this embodiment, n can be set according to empirical value or simulation result, and n can be but not limited to 5-20.

[0070] Each pulse width array is judged to determine whether the pulse width array meets the pulse width condition, and the number of pulse width arrays that do not meet the pulse width condition is determined. When a pulse width array does not meet the pulse width condition, it is determined that the water tank is short of water.

[0071] Wherein, the value of a can be determined according to n, and the value of a can be 0

[0072] In this embodiment, the number of pulse width arrays that do not meet the pulse width condition can be recorded by a counter, and the initial value of the counter can be 0. The N pulse width arrays can be judged from small to large according to the sampling time. When the current pulse width array meets the pulse width condition, the next pulse width array is judged, and the abnormal value of the counter remains unchanged. When the current pulse width array does not meet the pulse width condition, the counter records the abnormal value+1. When the abnormal value is added to a, the water shortage alarm is given, and the water pump stops working. When the N pulse width arrays have been judged, and the number of pulse width arrays that do not meet the pulse width condition is less than a, it is determined that the water tank has water, and the abnormal value is cleared to 0.

[0073] In an example, judging whether each pulse width array meets the pulse width condition can include:

[0074] The N pulse widths in each pulse width array are compared with the preset pulse width interval respectively, the preset pulse width interval includes a first pulse width interval for water judgment and a second pulse width interval for waterless judgment; when m pulse widths are in the first pulse width interval, it is determined that the pulse width array meets the pulse width condition, otherwise, it is determined that the pulse width array does not meet the pulse width condition, and N / 2

[0075] In the embodiment, when judging whether each pulse group meets the pulse width condition, the N pulse widths in each pulse group can be compared with the first pulse width interval (i.e. the load pulse width interval) respectively. If at least m elements in the current pulse group a[n] are in the first pulse width interval, it is determined that the current pulse group meets the pulse width condition. If the elements in the current pulse group a[n] in the first pulse width interval are less than m, it is determined that the current pulse group does not meet the pulse width condition.

[0076] In an example, when judging whether each pulse group meets the pulse width condition, the N pulse widths in each pulse group can be compared with the second pulse width interval (i.e. the no-load pulse width interval) respectively. If at least m elements in the current pulse group a[n] are in the second pulse width interval, it is determined that the current pulse group does not meet the pulse width condition. If the elements in the current pulse group a[n] in the second pulse width interval are less than m, it is determined that the current pulse group meets the pulse width condition.

[0077] In an example, the value of m can be determined according to N. The value of m can be 0 < m ≤ N, i.e. at least one pulse width meets the first pulse width interval or at least one pulse width does not meet the second pulse width interval, and then it is determined that the pulse group where the pulse width is located meets the pulse width condition. In an example, m can be determined according to the sampling theorem. m only needs to satisfy N / 2 < m ≤ N, which can improve the accuracy of the determination.

[0078] In an example, the water inlet detection method of the pasta machine provided by the embodiment can further include: determining the values of N and n according to the pressures of the liquid at the inlet and outlet of the water pump; wherein n = 5 and N = 7.

[0079] In practical applications, due to the influence of the pipe length and head resistance problem of the water pump structure installation, there is a formula H = (p2-p1) / ρg+(v2 2 -v1 2 ) / 2g+z2-z1, wherein H represents the head, which can be in meters (m); p1 and p2 represent the pressures of the liquid at the inlet and outlet of the water pump, which can be in Pa; v1 and v2 represent the flow rates of the fluid at the inlet and outlet of the water pump, which can be in m / s; z1 and z2 represent the heights of the inlet and outlet of the water pump, which can be in m; ρ represents the density of the liquid, which can be in kg / m 3 ; g represents the acceleration of gravity, which can be in m / s 2 .

[0080] In the current structure, other than the p1 and p2 parameters, all are known constants, and the two variables p1 and p2 cause an initial state abnormality to be confirmed during the process of the water pump pumping water from the water tank to the water outlet, which is divided into the following various states: (1) the water tank has water, and the water pipe has no water; (2) the water tank has water, and the water pipe has water; (3) the water tank has no water, and the water pipe has water; (4) the water tank has no water, and the water pipe has no water; and other abnormal conditions such as water bubbles in the water pipe, pump stall or water outlet stall, and the like.

[0081] In the embodiment, the values of N and n can be determined according to the pressures of the liquid at the inlet and outlet of the water pump, and generally, 7 pulse widths (i.e., N = 7) and 5 pulse width groups (i.e., n = 5) are taken, which can exclude the influence of dust lifting resistance when the water pump is working, and can actually pump the water in the water inlet pipeline and the water outlet pipeline, filter out invalid data, and then judge, thereby reducing misjudgment.

[0082] In the embodiment, every 7 pulse widths is taken as a group, and a total of 5 pulse width groups are collected, that is, there are 7 elements in an array, and the elements in a[1]-a[5] are real-time collected, updated and shifted and stored, the value of m can be 4, and the value of a can be 3, if 4 of the 7 elements in the array are not in the first pulse width interval each time, it is judged that the array does not meet the pulse width condition, if 3 groups of data do not meet the pulse width condition, it is judged that there is lack of water and an alarm is given, otherwise, the judgment is continued.

[0083] The water inlet detection method of the noodle machine provided in the embodiment of the application is based on the pulse width of the water pump in big data testing, that is, the pulse width in a preset time period is taken, and a plurality of arrays are stored, each pulse width array includes a plurality of pulse widths, and whether there is water is judged through the plurality of pulse widths in the plurality of pulse width arrays, which can weaken abnormal values, ensure the accuracy of the judgment, and enhance the reliability of the judgment.

[0084] In an example embodiment of the application, whether the water tank is short of water according to the pulse width can include: comparing the pulse width with a preset pulse width interval, and determining whether the water tank is short of water according to the comparison result.

[0085] In the embodiment, the pulse value is sampled after the water pump is started, the pulse width of the water pump collected by the Hall element in one cycle is recorded, and the pulse width in the cycle is directly compared with the preset pulse width interval to determine whether the water tank is short of water.

[0086] In an example, the preset pulse width interval can include a first pulse width interval for water judgment and a second pulse width interval for water judgment; comparing the pulse width with the preset pulse width interval, and determining whether the water tank is short of water according to the comparison result, can include:

[0087] The pulse width is compared with the first pulse width interval and the second pulse width interval respectively; when the pulse width is in the first pulse width interval, it is determined that the water tank has water; when the pulse width is in the second pulse width interval, it is determined that the water tank has no water.

[0088] In an example embodiment of the present application, the water inlet detection method of the noodle machine provided by the present embodiment can further include: determining a preset pulse width interval when the noodle machine enters a preset mode, and the preset mode includes an automatic cleaning function.

[0089] In actual application, in the factory data measurement of the water pump, the pulse width of a single water pump is different under no load and load, and the difference of the pulse width is consistent under different conditions. For example, due to the difference between the water pump and each component, the load pulse width interval of the water pump is different when water is pumped. Alternatively, the working pulse of the water pump is related to the working voltage of the water pump, and the corresponding working pulse of the water pump is different when the working voltage of the water pump is 5V and 12V. Therefore, due to the different working pulses of the water pump under different conditions (such as different voltages or different models), if the preset pulse width interval for judgment is fixed or pre-set, there will be a misjudgment.

[0090] In the present embodiment, the noodle machine can enter a preset mode, such as an automatic cleaning pipeline function, before leaving the factory, to calibrate the preset pulse width interval, so as to determine the load pulse width interval or the no-load pulse width interval of the water pump under different conditions (such as different voltages or different models), thereby reducing the misjudgment rate.

[0091] In an example, determining the preset pulse width interval can include: when the water amount in the water tank is greater than a preset threshold, controlling the water pump to run, and monitoring the pulse width output by the Hall element at the same time, and marking it as a first calibration pulse width; when the water tank has no water, controlling the water pump to run, and monitoring the pulse width output by the Hall element at the same time, and marking it as a second calibration pulse width; when the first calibration pulse width and the second calibration pulse width are not equal, determining the first calibration pulse width as the first pulse width interval, and determining the second calibration pulse width as the second pulse width interval.

[0092] In the present embodiment, each noodle machine can be calibrated, and the automatic cleaning pipeline function is used for judgment, so as to realize automatic calibration of the load pulse width interval (the first pulse width interval) when water is pumped, and automatic calibration of the no-load pulse width interval (the second pulse width interval) when water is not pumped.

[0093] Figure 6 The flow chart of the water pump pulse width calibration provided by the present embodiment is shown in Figure 6 , which can specifically include:

[0094] S601: Under the automatic cleaning function, the water tank is filled with water, and the water pump starts to work.

[0095] In this embodiment, after entering the calibration procedure, first open the automatic cleaning function to calibrate the water pump load pulse width interval. Among them, the default water output of the automatic cleaning function is 200g, and the working time is about 45s.

[0096] S602: Determine whether the Hall element starts to detect the pulse and transmits it to the MCU. If yes, execute S603; otherwise, execute S601.

[0097] S603: The MCU continues to measure the pulse width.

[0098] S604: Measure the stable Q pulse width.

[0099] In this embodiment, when the water pump is started to work, the pulse width is recorded in S602-S604, and the stable Q pulse width is obtained after 45s, Q is a positive integer, and the filtered mean value is recorded as the first calibration pulse width.

[0100] S605: The water tank is empty, and the water pump is running empty.

[0101] In this embodiment, the whole machine is continuously powered, the water pipe is emptied, the water tank is not filled with water, and the automatic cleaning function is selected to empty for 45s.

[0102] S606: Determine whether Q valid stable pulse widths are measured. If yes, execute S607; otherwise, execute S604.

[0103] In this embodiment, when the water pump is empty, the pulse width is recorded, and the stable Q pulse width is obtained after 45s, Q is a positive integer, and the filtered mean value is recorded as the second calibration pulse width.

[0104] S607: Compare whether the pulse widths under emptying and load conditions are not equal. If yes, execute S608; otherwise, execute S609.

[0105] S608: Record the current measured pulse width.

[0106] S609: Calibration fails, and recalibration.

[0107] In this embodiment, the first calibration pulse width and the second calibration pulse width are compared. If the two pulse widths are equal, the calibration fails. If the two pulse widths are not equal, the two pulse widths are stored in the EEPROM respectively, for the noodle machine and the noodle water or noodle making water shortage determination.

[0108] In this embodiment, after the noodle machine is shipped, the user compares the stored pulse width with the currently collected pulse width after the water pump is started. If the collected pulse width is in the second pulse width interval, an alarm is given for water shortage. If the collected pulse width is in the first pulse width interval, the machine continues to work normally.

[0109] In the embodiment, the water pump can be powered by 12V voltage, and the power supply fluctuates less than 0.1V in actual test, and has good stability.

[0110] The water inlet detection method of the noodle machine provided by the embodiment of the application can reduce misjudgment and improve detection reliability, because the pulse width of the water pump of different noodle machines when pumping water is different due to the difference between the water pump and components, the embodiment realizes automatic calibration of the pulse width interval of water pumping and no-load of each noodle machine by combining the automatic cleaning function of the production line.

[0111] In an example embodiment of the application, when detecting the water inlet amount of the stirring cup, the method can further include: detecting the difference between the existing water inlet amount and the required water inlet amount of the stirring cup in the last time period of the water inlet mode, and when the difference is less than 10g, not performing the water tank lack judgment.

[0112] In actual application, because the noodle machine can successfully make noodles through reverse protection or clamping protection and the like in the case that the water amount is less than 10g, even if the noodle machine cannot successfully make noodles, the noodle machine can enter the clamping protection. In the embodiment, the lack of water is not judged when the current function required automatic water adding water amount works in the last stage, and when the lack of water is less than 10g, the problem of poor user experience caused by the lack of water alarm can be reduced.

[0113] The water inlet detection method of the noodle machine provided by the embodiment of the application can be applied to self-cleaning broken wall machines or steam air fryers and other food processing machines, and the advantages of the method are more obvious in the machines, the noodle machine has higher accuracy requirements for water amount, the water amount accuracy deviation of other product schemes is 10g, which does not affect the overall performance, and the feasibility is also high.

[0114] Those of ordinary skill in the art will realize and understand that all or some of the steps in the methods disclosed above and the functional modules / units in the systems and devices can be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementation, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component can have multiple functions, or one function or step can be performed by several physical components in cooperation. Some or all of the components can be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on computer-readable media, which can include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, it is common and well understood by those of ordinary skill in the art that communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and can include any information delivery media.

Claims

1. A water inlet detection method of a noodle maker, the noodle maker comprising a base and a stirring assembly provided on the base, the base being provided with a motor, the stirring assembly comprising a stirring cup, a stirrer and a cup cover, and the noodle maker further comprising a water tank, a water pump for pumping water from the water tank and a Hall element for detecting the rotating speed of the water pump, characterized in that, The method comprises: detecting whether a water inlet mode is started, the water inlet mode comprising flour water or noodle water; if yes, starting the water pump to run and detecting the water inlet amount of the stirring cup; when detecting the water inlet amount of the stirring cup, the method further comprises: monitoring the pulse width output by the Hall element during the water pump running; determining whether the water tank is short of water according to the pulse width; the determination whether the water tank is short of water according to the pulse width comprises: collecting the pulse width in a preset time period, and determining whether the water tank is short of water according to the pulse width in the preset time period; or, comparing the pulse width with a preset pulse width interval, and determining whether the water tank is short of water according to the comparison result.

2. The method of claim 1, wherein, the collection of the pulse width in the preset time period and the determination whether the water tank is short of water according to the pulse width in the preset time period comprises: collecting n pulse width groups in the preset time period, each pulse width group comprising N pulse widths, n being greater than or equal to 1, and N being greater than 1; judging whether each pulse width group meets a pulse width condition; when a pulse width group does not meet the pulse width condition, determining that the water tank is short of water, 0 < a ≤ n.

3. The method of claim 2, wherein, the judgment whether each pulse width group meets the pulse width condition comprises: comparing the N pulse widths in each pulse width group with a preset pulse width interval respectively, the preset pulse width interval comprising a first pulse width interval for water determination and a second pulse width interval for no water determination; when m pulse widths are in the first pulse width interval, determining that the pulse width group meets the pulse width condition, otherwise, determining that the pulse width group does not meet the pulse width condition, N / 2 < m ≤ N.

4. The method according to claim 2 or 3, characterized in that, the method further comprises: determining the values of N and n according to the pressures of the liquid at the inlet and outlet of the water pump; wherein n = 5 and N = 7.

5. The method of claim 1, wherein, the preset pulse width interval comprises the first pulse width interval for water determination and the second pulse width interval for no water determination; the comparison of the pulse width with the preset pulse width interval and the determination whether the water tank is short of water according to the comparison result comprises: comparing the pulse width with the first pulse width interval and the second pulse width interval respectively; when the pulse width is in the first pulse width interval, determining that the water tank has water; when the pulse width is in the second pulse width interval, determining that the water tank has no water.

6. The method according to claim 3 or 5, characterized in that, the method further comprises: when the noodle maker enters a preset mode, determining the preset pulse width interval, the preset mode comprising an automatic cleaning function.

7. The method of claim 6, wherein, the determination of the preset pulse width interval comprises: when the water amount in the water tank is greater than a preset threshold, controlling the water pump to run, and monitoring the pulse width output by the Hall element, which is marked as a first calibration pulse width; when the water tank has no water, controlling the water pump to run, and monitoring the pulse width output by the Hall element, which is marked as a second calibration pulse width; when the first calibration pulse width and the second calibration pulse width are not equal, determining the first calibration pulse width as the first pulse width interval, and determining the second calibration pulse width as the second pulse width interval.

8. A pasta machine characterized by, The noodle maker comprises a base and a stirring assembly arranged on the base, a motor is arranged in the base, the stirring assembly comprises a stirring cup, a stirrer and a cup cover, and the noodle maker further comprises a water tank, a water pump for pumping water from the water tank and a Hall element for detecting the rotating speed of the water pump; the noodle maker further comprises a master control chip for executing the water inlet detection method of the noodle maker according to any one of claims 1-7.

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