CN110261667B - Bean grinding machine lack detection method and system, bean grinding machine and motor power detection circuit - Google Patents
Bean grinding machine lack detection method and system, bean grinding machine and motor power detection circuit Download PDFInfo
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- CN110261667B CN110261667B CN201910402799.XA CN201910402799A CN110261667B CN 110261667 B CN110261667 B CN 110261667B CN 201910402799 A CN201910402799 A CN 201910402799A CN 110261667 B CN110261667 B CN 110261667B
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/175—Indicating the instants of passage of current or voltage through a given value, e.g. passage through zero
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
Abstract
The invention is suitable for the technical field of bean mills, and provides a bean mill bean lack detection method, a bean mill bean lack detection system, a bean mill and a motor power detection circuit, wherein the method comprises the following steps: carrying out zero point detection on a motor of the bean grinding machine in real time, carrying out power sampling on the motor when the zero point of the motor is judged, and recording sampling power according to a sampling result; when the sampling times of the motor are larger than a time threshold value, calculating effective power according to a plurality of recorded sampling powers; when the effective power is judged to be smaller than the power threshold value, performing accumulation calculation according to a preset accumulated value to obtain a count value; when the count value is greater than a count threshold, the motor is turned off. According to the invention, through the design of power sampling on the motor, the bean lack detection of the bean grinder is judged by adopting a power sampling-based mode, so that the bean lack detection efficiency is effectively improved, the bean lack detection is not required to be carried out by adopting a Hall detector, and the production cost is reduced.
Description
Technical Field
The invention belongs to the technical field of bean mills, and particularly relates to a bean lack detection method and system for a bean mill, the bean mill and a motor power detection circuit.
Background
The bean grinder typically includes a hopper into which the beans are placed to feed the beans to the grinding device. The bean grinding device grinds bean materials and conveys the ground bean materials into a container. The container may be part of a coffee maker, making the container a brew basket or similar container. The bean grinder may also be manufactured separately from the coffee maker, and the ground coffee may be removed from the container therein and poured into a brew basket. The step of detecting that it lacks beans is particularly important in current bean grinder use, because in bean grinder's use, if do not detect out in time that to lack beans material, the motor can produce overheated after the long-time operation of no load condition, and then the damage of the motor that leads to easily has reduced bean grinder.
The existing bean grinding machine adopts voltage detection or a Hall detector to realize the bean lack prompting function. The lack of beans is usually detected by the rotation speed after the hall detector is installed on the bean grinder, which is too costly. By adopting a voltage detection mode, the bean lack detection error is large, the batch problems are more, and the competitiveness is poor.
Disclosure of Invention
The embodiment of the invention aims to provide a bean lack detection method and system for a bean grinder, the bean grinder and a motor power detection circuit, and aims to solve the problem that the existing bean grinder is too high in cost due to the fact that a Hall detector is installed for bean lack detection in the using process.
The embodiment of the invention is realized in such a way that a bean lack detection method of a bean grinder comprises the following steps:
carrying out zero point detection on a motor of the bean grinding machine in real time, carrying out power sampling on the motor when the zero crossing point of the motor is judged, and recording sampling power according to a sampling result;
when the sampling times of the motor are larger than a time threshold value, calculating effective power according to a plurality of recorded sampling powers;
when the effective power is judged to be smaller than the power threshold value, performing accumulation calculation according to a preset accumulated value to obtain a count value;
turning off the motor when the count value is greater than a count threshold.
Still further, after the step of calculating the effective power according to the recorded plurality of sampling powers, the method further comprises:
deleting the currently recorded sampling power.
Further, after the step of calculating the effective power according to the recorded plurality of sampling powers, the method further comprises:
and when the effective power is judged to be not smaller than the power threshold value, clearing the count value.
Further, after the step of calculating the effective power according to the recorded plurality of sampling powers, the method further comprises:
and when the duration times that the effective power is not smaller than the power threshold is judged to be larger than a time threshold, clearing the count value.
Further, when the motor zero crossing point is judged, the step of sampling the power of the motor comprises the following steps:
timing to obtain timing time when the zero crossing point of the motor is judged;
when the timed time equals a time threshold, power is sampled for the motor.
Further, the step of calculating the effective power according to the recorded plurality of sampling powers comprises:
and carrying out average value calculation, median calculation or weight calculation on the plurality of sampling powers to obtain the effective power.
Another object of an embodiment of the present invention is to provide a bean-missing detecting system for a bean grinder, the system including:
the power sampling module is used for carrying out zero point detection on a motor of the bean grinding machine in real time, carrying out power sampling on the motor when the zero point of the motor is judged, and recording sampling power according to a sampling result;
the power calculation module is used for calculating effective power according to a plurality of recorded sampling powers when the sampling times of the motor are larger than a time threshold value;
the power judgment module is used for carrying out accumulation calculation according to a preset accumulated value to obtain a count value when the effective power is judged to be smaller than the power threshold value; turning off the motor when the count value is greater than a count threshold.
It is another object of an embodiment of the present invention to provide a bean grinder, which includes a storage device for storing a computer program and a processor for operating the computer program to make the bean grinder execute the above-mentioned bean lack detection method of the bean grinder.
Another object of an embodiment of the present invention is to provide a motor power detection circuit, including:
the detection control circuit comprises an MCU, a rectifier electrically connected with the MCU and a filter unit electrically connected with the rectifier, wherein the output end of the filter unit is electrically connected with the motor, and the MCU is used for sampling the power of the motor;
the switch control module comprises a triode and a relay electrically connected with the triode, the triode is electrically connected with the MCU, the relay is electrically connected with the motor, and the triode is used for controlling the on-off of the relay through switching of a conducting state or a cut-off state under the control of high and low levels of the MCU so as to control the on-off state of the motor.
Another object of an embodiment of the present invention is to provide a storage medium, which stores a computer program used in the bean grinder, wherein the computer program, when executed by a processor, implements the steps of the bean lack detection method of the bean grinder.
According to the embodiment of the invention, the power sampling design is carried out on the motor, the bean lack detection judgment of the bean grinding machine is carried out in a power sampling-based mode, so that the bean lack detection efficiency is effectively improved, the bean lack detection is carried out without a Hall detector, the production cost is reduced, the zero point detection design is carried out on the motor of the bean grinding machine in real time, the power sampling aiming at the motor is triggered in a zero point detection-based mode, and the accuracy of the motor power sampling is effectively improved.
Drawings
Fig. 1 is a flow chart of a bean lack detection method of a bean grinder according to a first embodiment of the invention;
FIG. 2 is a flow chart of a bean-missing detection method of a bean grinder according to a second embodiment of the present invention;
FIG. 3 is a flow chart of a bean-lack detection method of a bean grinder according to a third embodiment of the present invention;
FIG. 4 is a flow chart of a bean lack detection method of a bean grinder according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a bean lack detection system of a bean grinder provided by a fifth embodiment of the invention;
FIG. 6 is a schematic diagram of a motor power detection circuit according to a sixth embodiment of the present invention;
fig. 7 is a schematic structural view of a bean grinder according to a seventh embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Example one
Referring to fig. 1, a flow chart of a bean-missing detection method of a bean grinder according to a first embodiment of the present invention includes the steps of:
step S10, carrying out zero point detection on a motor of the bean grinding machine in real time, carrying out power sampling on the motor when the zero crossing point of the motor is judged, and recording the sampling power according to the sampling result;
the zero-crossing point detection of the motor may be performed by: performing zero point detection according to a first preset time interval, preferably, in the step, when it is determined that the motor reaches a preset time value after the zero crossing point, performing power sampling on the motor, where the preset time value may be set according to user requirements, and in this embodiment, the preset time value is 0.3ms, that is, performing power sampling again after 0.3ms after the zero crossing point of the motor, thereby effectively improving accuracy of sampling power acquisition; specifically, in this step, the calculation of the sampling power may be performed by calculating a current, a voltage, and a resistance;
step S20, when the sampling times of the motor is larger than the threshold value, calculating the effective power according to the recorded multiple sampling powers;
in this embodiment, the number threshold is 10 times, in this step, whether the current rotation speed of the motor is in a stable state is determined by judging between the sampling number and the number threshold, when the motor is in the stable state, the fluctuation of power is small, and the power reading at this time is accurate, specifically, in this step, the calculation mode of the effective power is average value calculation, that is, the average value of a plurality of sampling powers is calculated to obtain the effective power;
step S30, when the effective power is judged to be smaller than the power threshold value, carrying out accumulation calculation according to a preset accumulation value to obtain a count value;
in the step, the preset accumulated value can be set according to the user requirement, in this embodiment, the preset accumulated value is 1, that is, when the effective power is judged to be smaller than the power threshold, the accumulation of the value 1 is performed to calculate the count value;
step S40, turning off the motor when the count value is greater than a count threshold;
the counting value and the counting threshold value can be numerically judged by adopting a comparator, when the counting value is larger than the counting threshold value, the bean grinding machine is judged to be in a bean lack state, and the motor is turned off in time to prevent the motor from being damaged due to long-time idling;
in this embodiment, through right the motor carries out the design of power sampling to adopt the mode based on power sampling to grind beans machine and lack the judgement that beans detected, and then the effectual improvement lacks beans detection efficiency, need not to adopt hall detector to lack beans and detect, reduced manufacturing cost, through the design of carrying out detection at zero point to the motor of grinding beans machine in real time, trigger the power sampling to the motor in order to adopt the mode based on detection at zero point, and then the effectual precision that improves motor power sampling.
Example two
Referring to fig. 2, a flow chart of a bean-missing detection method of a bean grinder according to a second embodiment of the present invention includes the steps of:
step S11, carrying out zero point detection on a motor of the bean grinding machine in real time, and timing when the zero point of the motor is judged to be zero, so as to obtain timing time;
the zero-crossing point detection of the motor may be performed by: carrying out zero point detection according to a first preset time interval, and timing in the step by adopting a timer mode;
step S21, when the timing time is equal to the time threshold, the power of the motor is sampled, and the sampling power is recorded according to the sampling result;
step S31, when the sampling times of the motor is larger than the times threshold, carrying out average value calculation, median calculation or weight calculation on the recorded multiple sampling powers to obtain the effective power;
in the step, whether the current rotating speed of the motor is in a stable state is judged according to the judgment between the sampling times and the time threshold, when the motor is in the stable state, the fluctuation of power is small, and the power reading is accurate;
step S41, when the effective power is judged to be smaller than the power threshold value, carrying out accumulation calculation according to a preset accumulation value to obtain a count value;
in the step, the preset accumulated value can be set according to the user requirement, in this embodiment, the preset accumulated value is 1, that is, when the effective power is judged to be smaller than the power threshold, the accumulation of the value 1 is performed to calculate the count value;
step S51, when the effective power is judged not to be smaller than the power threshold, the count value is cleared;
the design of clearing the count value is used for preventing detection errors caused by adding bean materials in the bean lack detection process of a user, so that the count value is a continuous value in the embodiment, namely the number of times that the effective power is continuously smaller than the power threshold value;
step S61, turning off the motor when the count value is greater than a count threshold;
when the number of times that the effective power is continuously smaller than the power threshold value is judged to be larger than the number threshold value, the bean grinding machine is judged to be in a bean lack state, and the motor is closed in time to prevent the motor from being damaged due to long-time idling;
in this embodiment, through right the motor carries out the design of power sampling to adopt the mode based on power sampling to grind beans machine and lack the judgement that beans detected, and then the effectual improvement lacks beans detection efficiency, need not to adopt hall detector to lack beans and detect, reduced manufacturing cost, through the design of carrying out detection at zero point to the motor of grinding beans machine in real time, trigger the power sampling to the motor in order to adopt the mode based on detection at zero point, and then the effectual precision that improves motor power sampling.
EXAMPLE III
Referring to fig. 3, a flow chart of a bean-missing detection method of a bean grinder according to a third embodiment of the present invention includes the steps of:
step S12, carrying out zero point detection on a motor of the bean grinding machine in real time, and timing when judging that the motor crosses zero point to obtain timing time;
step S22, when the timing time is equal to the time threshold, the power of the motor is sampled, and the sampling power is recorded according to the sampling result;
step S32, when the sampling times of the motor is larger than the times threshold value, carrying out average value calculation, median calculation or weight calculation on the recorded multiple sampling powers to obtain the effective power;
step S42, deleting the currently recorded sampling power;
step S52, when the effective power is judged to be smaller than the power threshold value, carrying out accumulation calculation according to a preset accumulation value to obtain a count value;
step S62, when the duration number of the effective power which is not smaller than the power threshold is judged to be larger than the number threshold, the count value is cleared;
in the embodiment, whether the count value is cleared or not is judged by judging between the duration times and the time threshold, so that the error clearing of the count value is effectively prevented when the effective power is larger than the power threshold accidentally;
step S72, turning off the motor when the count value is greater than a count threshold;
in this embodiment, through right the motor carries out power sampling's design to adopt the mode based on power sampling to grind beans machine and lack the judgement that beans detected, and then effectual improvement lacks beans detection efficiency, need not to adopt hall detector to lack beans and detect, reduced manufacturing cost, through carrying out the design that detects zero point to grinding the motor of beans machine in real time, trigger the power sampling to the motor with the mode based on detecting zero point, and then the effectual precision that improves motor power sampling.
Example four
Referring to fig. 4, a flow chart of a bean-missing detection method of a bean grinder according to a fourth embodiment of the present invention includes the steps of:
step S13, carrying out zero point detection on a motor of the bean grinding machine in real time, and timing when the zero point of the motor is judged to be zero, so as to obtain timing time;
step S23, when the timing time is equal to the time threshold, the power of the motor is sampled, and the sampling power is recorded according to the sampling result;
step S33, when the sampling times of the motor is larger than the times threshold, carrying out average value calculation, median calculation or weight calculation on the recorded multiple sampling powers to obtain the effective power;
step S43, deleting the currently recorded sampling power;
step S53, when the effective power is judged to be smaller than the power threshold value, carrying out accumulation calculation according to a preset accumulation value to obtain a count value;
step S63, accumulating the judgment times between the effective power and the power threshold value to obtain the detection times;
step S73, when it is determined that the detection number is greater than the detection threshold, determining whether the count value is greater than a count threshold;
when the judgment result of the step S73 is yes, step S83 is performed;
step S83, clearing the detection times and the count value, and turning off the motor;
when the judgment result of the step S73 is no, step S93 is performed;
step S93, clearing the detection times and the count value, and returning to execute step S13;
in this embodiment, through right the motor carries out the design of power sampling to adopt the mode based on power sampling to grind beans machine and lack the judgement that beans detected, and then the effectual improvement lacks beans detection efficiency, need not to adopt hall detector to lack beans and detect, reduced manufacturing cost, through the design of carrying out detection at zero point to the motor of grinding beans machine in real time, trigger the power sampling to the motor in order to adopt the mode based on detection at zero point, and then the effectual precision that improves motor power sampling.
EXAMPLE five
Referring to fig. 5, it is a schematic structural diagram of a bean-missing detecting system 100 of a bean grinder according to a fifth embodiment of the present invention, the system includes a power sampling module 10, a power calculating module 11 and a power determining module 12, wherein:
the power sampling module 10 is configured to perform zero point detection on a motor of the bean grinder in real time, perform power sampling on the motor when the zero point of the motor is judged, and record sampling power according to a sampling result, where a zero point detection mode of the motor may be: performing zero point detection according to a first preset time interval, preferably, in the module, when it is judged that the motor reaches a preset time value after passing through a zero point, performing power sampling on the motor, where the preset time value may be set autonomously according to user requirements, and in this embodiment, the preset time value is 0.3ms, that is, performing power sampling again after 0.3ms after passing through the zero point of the motor, thereby effectively improving accuracy of sampling power acquisition; specifically, in this module, the calculation of the sampling power may be performed by calculating a current, a voltage, and a resistance.
Further, the power sampling module 10 is further configured to: timing to obtain timing time when the zero crossing point of the motor is judged; sampling power to the motor when the timed time equals a time threshold.
The power calculation module 11 is configured to calculate effective power according to the recorded multiple sampling powers when the sampling frequency of the motor is greater than a frequency threshold, where the frequency threshold may be set autonomously according to a user requirement, in this embodiment, the frequency threshold is 10 times, in this module, whether the current rotation speed of the motor is in a stable state is determined according to a size between the sampling frequency and the frequency threshold, when the motor is in a stable state, fluctuation of power is small, a power reading at this time is accurate, specifically, in this module, the calculation mode of the effective power is an average value calculation, that is, an average value of the multiple sampling powers is calculated, so as to obtain the effective power.
Preferably, the power calculation module 11 is further configured to: deleting the currently recorded sampling power.
In this embodiment, the power calculating module 11 is further configured to: and carrying out average calculation, median calculation or weight calculation on the plurality of sampling powers to obtain the effective power.
The power judgment module 12 is configured to, when it is judged that the effective power is smaller than the power threshold, perform accumulation calculation according to a preset accumulation value to obtain a count value; and when the counting value is larger than the counting threshold value, the motor is closed, wherein when the effective power is smaller than the power threshold value, the load in the bean grinding machine is smaller, the bean grinding machine is judged to be in a bean lack state, in the module, the preset accumulated value can be automatically set according to the user requirement, in the embodiment, the preset accumulated value is 1, namely when the effective power is smaller than the power threshold value, the accumulation of the value 1 is carried out, the counting value is calculated, the numerical judgment can be carried out between the counting value and the counting threshold value in a comparator mode, when the counting value is larger than the counting threshold value, the bean grinding machine is judged to be in the bean lack state, and the motor is closed in time, so that the damage caused by long-time idling of the motor is prevented.
In this embodiment, the power determining module 12 is further configured to: and when the effective power is judged to be not less than the power threshold value, clearing the count value.
Further, the power determining module 12 is further configured to: and when the duration times that the effective power is not smaller than the power threshold is judged to be larger than a time threshold, clearing the count value.
In this embodiment, through right the motor carries out the design of power sampling to adopt the mode based on power sampling to grind beans machine and lack the judgement that beans detected, and then the effectual improvement lacks beans detection efficiency, need not to adopt hall detector to lack beans and detect, reduced manufacturing cost, through the design of carrying out detection at zero point to the motor of grinding beans machine in real time, trigger the power sampling to the motor in order to adopt the mode based on detection at zero point, and then the effectual precision that improves motor power sampling.
Example six
Referring to fig. 6, a schematic structural diagram of a motor power detection circuit according to a sixth embodiment of the present invention is shown, including:
the detection control circuit comprises an MCU, a rectifier T1 electrically connected with the MCU and a filter unit electrically connected with the rectifier T1, wherein the output end of the filter unit is electrically connected with a motor M1, and the MCU is used for sampling the power of the motor M1.
The switch control module comprises a triode Q1 and a relay Y1 electrically connected with the triode Q1, the triode Q1 is electrically connected with the MCU, the relay Y1 is electrically connected with the motor M1, and the triode Q1 is used for controlling the switch of the relay Y1 through switching of a conducting state or a cut-off state under the control of high and low levels of the MCU, so that the switch state of the motor M1 is controlled.
Specifically, in this embodiment, a first resistor R1, a second resistor R2 and a third resistor R3 are connected in series between the MCU and the rectifier T1, a first capacitor C1, a second capacitor C2 and an adjustable resistor RL are connected in parallel to the rectifier T1, a first inductor L1, a second inductor L2, a third inductor L3 and a fourth inductor L4 are correspondingly connected in series to the first capacitor C1 and the second capacitor C2, a diode D1 is connected in parallel to the relay Y1, and a fourth resistor R4 and a fifth resistor R5 are connected between the triode Q1 and the MCU.
In this embodiment, in the switch control module, the transistor Q1 is controlled to be turned on or off by the high and low levels of the MCU; therefore, the switch of the relay Y1 is controlled, the operation of the motor M1 is controlled, and in the power detection of the motor M1, the MCU is used for detecting the power of the motor M1, in the embodiment, the motor M1 is a direct current motor, alternating current (100 and 240V) is output to direct current through bridge rectification, and meanwhile, the direct current is used for anti-EMC filtering through a capacitance inductor.
EXAMPLE seven
Referring to fig. 7, a schematic structural diagram of a bean grinder 101 according to a seventh embodiment of the present invention is shown, including a storage device and a processor, where the storage device is used to store a computer program, and the processor runs the computer program to make the bean grinder 101 execute the above-mentioned bean lack detection method.
The present embodiment also provides a storage medium having stored thereon a computer program for use in the above-described bean grinder, which program, when executed, comprises the steps of:
carrying out zero point detection on a motor of the bean grinding machine in real time, carrying out power sampling on the motor when the zero point of the motor is judged, and recording sampling power according to a sampling result;
when the sampling times of the motor are larger than a time threshold value, calculating effective power according to a plurality of recorded sampling powers;
when the effective power is judged to be smaller than the power threshold value, performing accumulation calculation according to a preset accumulated value to obtain a count value;
turning off the motor when the count value is greater than a count threshold. The storage medium, such as: ROM/RAM, magnetic disk, optical disk, etc.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is used as an example, in practical applications, the above-mentioned function distribution may be performed by different functional units or modules according to needs, that is, the internal structure of the storage device is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application.
It will be understood by those skilled in the art that the configuration shown in fig. 5 does not constitute a limitation of the bean lack detection system of the present invention and may include more or less components than those shown, or some components in combination, or a different arrangement of components, and that the bean lack detection method of the bean grinder of fig. 1-4 may also be implemented using more or less components than those shown in fig. 5, or some components in combination, or a different arrangement of components. The units, modules, etc. referred to herein are a series of computer programs that can be executed by a processor (not shown) in the missing bean detection system of the bean grinder and that can function to perform a specific function, and all of them can be stored in a storage device (not shown) of the missing bean detection system of the bean grinder.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (6)
1. A bean lack detection method of a bean grinder is characterized by comprising the following steps:
carrying out zero point detection on a motor of the bean grinding machine in real time, carrying out power sampling on the motor when the zero point of the motor is judged, and recording sampling power according to a sampling result;
when the sampling times of the motor are larger than a time threshold value, calculating effective power according to a plurality of recorded sampling powers;
deleting the currently recorded sampling power;
when the effective power is judged to be smaller than the power threshold value, performing accumulation calculation according to a preset accumulated value to obtain a count value;
turning off the motor when the count value is greater than a count threshold;
wherein after the step of calculating an effective power from the recorded plurality of sample powers, the method further comprises:
when the effective power is judged to be not smaller than the power threshold, clearing the count value, wherein the count value is the number of times that the effective power is continuously smaller than the power threshold;
when the motor zero crossing point is judged, the step of sampling the power of the motor comprises the following steps:
timing to obtain timing time when the zero crossing point of the motor is judged;
sampling power to the motor when the timed time equals a time threshold.
2. A bean grinder missing bean detection method as claimed in claim 1, characterized in that after the step of calculating the effective power from the recorded plurality of said sample powers, the method further comprises:
and when the duration times that the effective power is not smaller than the power threshold is judged to be larger than a time threshold, clearing the count value.
3. A bean grinder missing bean detection method as claimed in claim 1, wherein the step of calculating an effective power from the recorded plurality of the sampling powers comprises:
and carrying out average value calculation, median calculation or weight calculation on the plurality of sampling powers to obtain the effective power.
4. A bean grinder lack bean detection system, characterized in that, the system includes:
the power sampling module is used for carrying out zero point detection on a motor of the bean grinding machine in real time, carrying out power sampling on the motor when the zero crossing point of the motor is judged, and recording sampling power according to a sampling result;
the power calculation module is used for calculating effective power according to a plurality of recorded sampling powers when the sampling times of the motor are larger than a time threshold value;
the power judgment module is used for carrying out accumulation calculation according to a preset accumulated value to obtain a count value when the effective power is judged to be smaller than the power threshold value; turning off the motor when the count value is greater than a count threshold;
the power sampling module is further configured to: when the zero crossing point of the motor is judged, timing is carried out to obtain timing time; sampling power to the motor when the timed time equals a time threshold;
the power calculation module is further to: deleting the currently recorded sampling power;
the power determination module is further configured to: and when the effective power is judged to be not smaller than the power threshold, clearing the count value, wherein the count value is the number of times that the effective power is continuously smaller than the power threshold.
5. A bean grinder, characterized by comprising a storage device for storing a computer program and a processor running the computer program to cause the bean grinder to perform the bean-lack detection method of the bean grinder as claimed in any one of claims 1 to 3.
6. A storage medium, characterized in that it stores a computer program for use in a bean grinder as claimed in claim 5, which computer program, when executed by a processor, carries out the steps of the bean grinder lack detection method as claimed in any one of claims 1 to 3.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478903A (en) * | 2006-06-26 | 2009-07-08 | 塞可Ipr有限公司 | Method for detecting the amount of grains in a grinding device |
| KR20160025307A (en) * | 2014-08-27 | 2016-03-08 | 주식회사 나본케이씨엠 | Kettle for roasting coffee beans having a heater in the coffee roasting machine |
| CN105608850A (en) * | 2016-04-01 | 2016-05-25 | 零点空间科技(北京)有限公司 | Incomplete filling alarm method |
| CN205285922U (en) * | 2015-12-02 | 2016-06-08 | 九阳股份有限公司 | Use reliable juice extractor |
| CN106671465A (en) * | 2015-11-11 | 2017-05-17 | 韦啟武 | Household oil press |
| CN107019429A (en) * | 2017-03-13 | 2017-08-08 | 苏州咖博士咖啡系统科技有限公司 | A kind of coffee machine coffee bean lacks beans detection means |
| CN107101428A (en) * | 2017-05-24 | 2017-08-29 | 杭州三花研究院有限公司 | Control method and control system |
| CN107280481A (en) * | 2017-06-13 | 2017-10-24 | 中山市众智电器有限公司 | Grind the beans quantity measuring method and coffee machine of beans equipment |
| CN108433546A (en) * | 2018-06-07 | 2018-08-24 | 东保集团有限公司 | A kind of powder amount identification coffee machine |
-
2019
- 2019-05-15 CN CN201910402799.XA patent/CN110261667B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478903A (en) * | 2006-06-26 | 2009-07-08 | 塞可Ipr有限公司 | Method for detecting the amount of grains in a grinding device |
| KR20160025307A (en) * | 2014-08-27 | 2016-03-08 | 주식회사 나본케이씨엠 | Kettle for roasting coffee beans having a heater in the coffee roasting machine |
| CN106671465A (en) * | 2015-11-11 | 2017-05-17 | 韦啟武 | Household oil press |
| CN205285922U (en) * | 2015-12-02 | 2016-06-08 | 九阳股份有限公司 | Use reliable juice extractor |
| CN105608850A (en) * | 2016-04-01 | 2016-05-25 | 零点空间科技(北京)有限公司 | Incomplete filling alarm method |
| CN107019429A (en) * | 2017-03-13 | 2017-08-08 | 苏州咖博士咖啡系统科技有限公司 | A kind of coffee machine coffee bean lacks beans detection means |
| CN107101428A (en) * | 2017-05-24 | 2017-08-29 | 杭州三花研究院有限公司 | Control method and control system |
| CN107280481A (en) * | 2017-06-13 | 2017-10-24 | 中山市众智电器有限公司 | Grind the beans quantity measuring method and coffee machine of beans equipment |
| CN108433546A (en) * | 2018-06-07 | 2018-08-24 | 东保集团有限公司 | A kind of powder amount identification coffee machine |
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