CN112741487B - Method and device for judging pressure switch state and cooking utensil - Google Patents
Method and device for judging pressure switch state and cooking utensil Download PDFInfo
- Publication number
- CN112741487B CN112741487B CN201911054399.0A CN201911054399A CN112741487B CN 112741487 B CN112741487 B CN 112741487B CN 201911054399 A CN201911054399 A CN 201911054399A CN 112741487 B CN112741487 B CN 112741487B
- Authority
- CN
- China
- Prior art keywords
- state
- pressure switch
- value
- kick
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000010411 cooking Methods 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 98
- 230000008859 change Effects 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000012790 confirmation Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 235000014676 Phragmites communis Nutrition 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0802—Control mechanisms for pressure-cookers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Electronic Switches (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention discloses a judging method and device of a pressure switch state and a cooking utensil. Wherein the method comprises the following steps: comparing the acquired switch detection value of the pressure switch with a state value stored in the controller in advance, and determining a kick state of the pressure switch according to a comparison result; judging whether the maintaining time of the kick state is longer than a preset time; if the maintaining time is longer than the preset time, the pressure switch is judged to be in a closed/open state. The invention solves the technical problem that the pressure switch in the prior art cannot accurately detect signals under the aging environment, so that the pressure cooker is abnormal in use.
Description
Technical Field
The invention relates to the field of household appliances, in particular to a method and a device for judging a pressure switch state and a cooking appliance.
Background
Pressure switches are commonly used in electric pressure cooker, wherein the working principle of the pressure switch is as follows: the pressure switch is generally fixedly arranged at the bottom of the inner container of the electric pressure cooker, and the contact point of the pressure switch is contacted with the convex column of the heating disc. When the electric pressure cooker is electrified and heated, the temperature and the pressure in the cooker are raised, and the heating disc is downwards subjected to certain axial elastic displacement through the inner cooker of the built-in elastic mechanism, so that a stroke acts on the action reed of the pressure switch, and after the stroke is accumulated to a critical point of the action reed, instantaneous action is generated, so that a movable contact at the tail end of the action reed is quickly disconnected from a fixed contact, and a heating circuit is cut off and is not heated; the pressure limiting function is achieved, the temperature and the air pressure in the cooker can slowly decrease along with time because the cooker is not heated, at the moment, the built-in elastic mechanism can generate certain restoring displacement along with the air pressure, and when the generated elastic restoring displacement reaches the restoring displacement requirement of the pressure switch, the two contacts of the pressure switch are in instantaneous contact, and the heating circuit is switched on again to restore heating. The circulation is repeated, thereby playing a role in controlling the air pressure in the pot to be within a certain range of values.
However, considering the application environment of the electric pressure cooker, namely, in a kitchen, because the kitchen environment is moist, oil smoke is relatively large, contacts of the pressure switch are easy to oxidize and corrode, so that the use efficiency of the electric pressure cooker is low.
Aiming at the problem that the pressure cooker is abnormal in use due to the fact that a pressure switch cannot accurately detect signals in an aging environment in the prior art, no effective solution is proposed at present.
Disclosure of Invention
The embodiment of the invention provides a judging method and device of a pressure switch state and a cooking utensil, which at least solve the technical problem that the pressure switch in the prior art cannot accurately detect signals under an ageing environment to cause abnormal use of an electric pressure cooker.
According to an aspect of the embodiment of the present invention, there is provided a method for determining a pressure switch state, which is applied to a cooking appliance, including: comparing the acquired switch detection value of the pressure switch with a state value stored in the controller in advance, and determining a kick state of the pressure switch according to a comparison result; judging whether the maintaining time of the kick state is longer than a preset time; if the maintaining time is longer than the preset time, judging that the pressure switch is in the on/off state, so that the technical effect of accurately judging the on/off state of the pressure switch is achieved through delay judgment.
Optionally, comparing the collected switch detection value of the pressure switch with a state value stored in the controller in advance, and determining the kick state of the pressure switch according to the comparison result includes: acquiring a switch detection value acquired by a pressure switch; judging whether the difference value between the switch detection value and the state value is larger than a kick value or not; if the difference value between the switch detection value and the state value is larger than the kick value, the pressure switch enters a kick state; the kick state is a state in which the pressure switch is switched from a closed to an open state, or from an open to a closed state.
Further, optionally, the state value includes a closed state value when the pressure switch is closed or an open state value when the pressure switch is open; under the condition that the pressure switch is in a closed state, judging whether the difference value between the switch detection value and the closed state value is larger than a kick value, and if the difference value between the switch detection value and the closed state value is larger than the kick value, entering the kick state by the pressure switch, wherein the kick state comprises: switching from the closed state to the open state; under the condition that the pressure switch is in an off state, judging whether the difference value between the switch detection value and the off state value is larger than a kick value, and if the difference value between the switch detection value and the off state value is larger than the kick value, entering the kick state by the pressure switch, wherein the kick state comprises: switching from the open state to the closed state. The jump state of the pressure switch is determined by comparing the collected switch detection value with the state values in the two states, and a judgment basis is provided for the subsequent state of the pressure switch.
Optionally, the kick value is greater than or equal to 5.
Further, optionally, if the maintaining time is greater than the preset time, determining that the pressure switch is in the on/off state includes: under the condition that the pressure switch is in a closed state, if the maintaining time of the kick state is longer than the preset time, determining that the state of the pressure switch is changed, wherein the state change of the pressure switch comprises: switching from the closed state to the open state; if the maintaining time of the kick state is smaller than the preset time, determining that the pressure switch maintains the closed state; under the condition that the pressure switch is in an off state, if the maintaining time of the kick state is longer than a preset time, determining that the state of the pressure switch is changed, wherein the state change of the pressure switch comprises: switching from an open state to a closed state; if the maintaining time of the kick state is smaller than the preset time, the pressure switch is determined to maintain the off state.
Optionally, determining that the state of the pressure switch has changed includes: under the switching condition that the state of the pressure switch is switched from the closed state to the open state, the switch detection value detected last in the maintaining time is updated to be an open state value; in the case of switching the state of the pressure switch from the open state to the closed state, the switch detection value last detected in the holding time is updated to the closed state value.
Optionally, the switch detection values are multiple, and in a preset time, the pressure switch is in a kick state by the multiple switch detection values.
Optionally, the preset time is 1-2 seconds.
Optionally, the method further comprises: and judging the initial state of the pressure switch, and determining whether the initial state of the pressure switch is a closed state or an open state.
Further, optionally, the state value includes a closed state value when the pressure switch is closed or an open state value when the pressure switch is open; determining whether the initial state of the pressure switch is the closed state or the open state includes: comparing a first difference between the switch detection value and the closed state value with a second difference between the switch detection value and the open state value; if the first difference value is smaller than the second difference value, the pressure switch is in a closed state; if the first difference is greater than the second difference, the pressure switch is in an off state.
According to another aspect of the embodiment of the present invention, there is also provided a device for determining a pressure switch state, which is applied to a cooking appliance, including: the comparison module is used for comparing the acquired switch detection value of the pressure switch with a state value stored in the controller in advance and determining a kick state of the pressure switch according to a comparison result; the judging module is used for judging whether the maintaining time of the kick state is longer than the preset time; and the state confirmation module is used for judging the on/off state of the pressure switch if the maintenance time is longer than the preset time, so that the technical effect of accurately judging the on/off state of the pressure switch is achieved through delay judgment. According to an aspect of the embodiment of the present invention, there is also provided a cooking appliance including: and the judging device of the pressure switch state comprises the device.
Optionally, the cooking appliance includes: an electric pressure cooker.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a flow chart of a method for determining a pressure switch state according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of detecting a pressure switch state in a method for determining a pressure switch state according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method for determining a pressure switch state according to an embodiment of the invention;
fig. 4 is a schematic diagram of a device for judging a pressure switch state according to an embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
According to an embodiment of the present invention, there is provided an embodiment of a method for determining a pressure switch state, it should be noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and that although a logic sequence is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in a different order than that illustrated herein.
Fig. 1 is a flow chart of a method for judging a pressure switch state according to an embodiment of the invention, as shown in fig. 1, applied to a cooking appliance, the method includes the following steps:
step S102, comparing the acquired switch detection value of the pressure switch with a state value stored in the controller in advance, and determining a kick state of the pressure switch according to a comparison result;
step S104, judging whether the maintaining time of the kick state is longer than the preset time;
step S106, if the maintaining time is longer than the preset time, the pressure switch is judged to be in the on/off state.
Optionally, the controller includes: the system comprises a first controller, a second controller and a third controller, wherein the first controller is used for storing a switch detection value obtained by collecting a pressure switch each time; the second controller is used for storing an off state value of the pressure switch in an off state; the third controller is used for storing a closing state value of the pressure switch in a closing state;
or alternatively, the first and second heat exchangers may be,
the controller includes: the system comprises a first control module, a second control module and a third control module, wherein the first control module, the second control module and the third control module are integrated in the same controller, and the first control module is used for storing a switch detection value obtained by collecting a pressure switch each time; the second control module is used for storing the off state value of the pressure switch in the off state; the third control module is used for storing a closing state value of the pressure switch in a closing state.
Specifically, the method for determining the state of the pressure switch provided in the embodiment of the present application may be applied to a cooking appliance, where the cooking appliance may be preferably illustrated by taking an electric pressure cooker as an example, and because the use environment of the electric pressure cooker has complex environments such as humidity and corrosion, the state detection of the pressure switch in the electric pressure cooker may not be accurately obtained due to the foregoing reasons, in the embodiment of the present application, the collected switch detection value of the pressure switch may be obtained through a circuit structure shown in fig. 2, fig. 2 is a schematic diagram of the state detection of the pressure switch in the method for determining the state of the pressure switch according to the embodiment of the present invention, in the circuit for detecting the state of the pressure switch in fig. 2, a signal generated by closing/opening the pressure switch may be transmitted to the right side through the circuit to obtain the switch detection value, and the general detection value is the voltage value.
Wherein after obtaining the switch detection value of the pressure switch, the switch detection value is stored in a controller, the controller is marked as AX (i.e., the first controller or the first control module in the embodiment of the application), before that, an initial value of the pressure switch state, that is, an open state value and a closed state value, are set, and the open state value and the closed state value are respectively stored in the corresponding controller, in the embodiment of the application, the state value 220 of the closed state (i.e., the closed state value in the embodiment of the application) is determined as the initial value of the pressure switch closure, and the state value is stored in the controller a (i.e., the third controller or the third control module in the embodiment of the application); determining a state value 20 (i.e., an open state value in the embodiment of the present application) of the closed state as an initial value of the pressure switch open, and storing the state value in a controller B (i.e., a second controller or a second control module in the embodiment of the present application), where 220 and 20 are values obtained after the pressure switch is closed or opened through digital-to-analog conversion, in the embodiment of the present application, 220 represents the initial value in the closed state, and 20 represents the initial value in the open state, and it should be noted that in the embodiment of the present application, only the above 220 and 20 represent the closed or open state of the pressure switch as examples, so as to implement the method for determining the pressure switch state provided in the embodiment of the present application, which is not limited in detail;
in case that the switch detection value of the pressure switch is obtained, the value of the switch detection value is compared with the value of the open state value and the value of the close state value, respectively, and it is judged which of the value of the switch detection value is closer to the value of the open state value and the value of the close state value, that is, it is assumed that the value of the collected switch detection value is 240,240 is closer to 220 between 220 and 20, and thus, it is determined that the temporary state of the pressure switch is closed, and the value stored in the third controller or the third control module is updated, that is, 220 is changed to 240. Otherwise, determining that the temporary state of the pressure switch is open, and updating the numerical value stored by the second controller or the second control module, wherein the digit of the flag state controller is 1 when the on/off state of the pressure switch is closed; conversely, in the case where the on/off state of the pressure switch is open, the flag state controller has a digit of 0.
The implementation manner of the controller in the embodiment of the present application includes two types:
mode one: corresponding controllers are respectively distributed according to the switch detection value, the opening state value or the closing state value which are acquired in real time, and the number of the controllers is a plurality of, for example, the switch detection value which is acquired in real time is acquired and stored through a first controller; storing, by the second controller, an off state value of the pressure switch in an off state; storing, by a third controller, a closed state value of the pressure switch in a closed state; the values of the open state value and the closed state value stored by the second controller and the third controller may be standard state values in the closed state/open state, or factory-set initial values.
Mode two: the functions of the first control module, the second control module and the third control module obtained by dividing the modules in a partition mode are the same as those of the controllers in the first mode, and the difference is that the data are acquired and stored by using the high-integration module in the second mode, so that the area on a circuit control panel is saved, and the design difficulty and the wiring difficulty are reduced.
For example, in the case that the closed state value is 220 and the open state value is 20, assuming that the switch detection value collected by the controller AX is X, comparing X with 220 and 20 respectively, judging which of X and 220 is closer, in the case that X and 220 are closer, transferring X from the controller AX to the controller a (i.e., the third controller or the third control module in the embodiment of the present application), and marking the digit of the state controller P as 1, to indicate that the current state of the electric pressure cooker is heating; conversely, in the case where X is similar to 20, X is transferred from the controller AX to the controller B (i.e., the second controller or the second control module in the embodiment of the present application), and the digit of the state controller P is marked with 0, indicating that the current state of the electric pressure cooker is to suspend heating.
Comparing the obtained value of the switch detection value, namely, the switch detection value with the opening state value and the closing state value according to the temporary judgment of the corresponding state of the obtained switch detection value to respectively obtain a change value between the switch detection value and the opening state value and between the switch detection value and the closing state value; and judging whether the change value changes in a period of time through delay, and determining the state of the pressure switch according to a judging result.
In the embodiment of the invention, a delay judgment mode is adopted, the acquired switch detection value of the pressure switch is compared with a state value stored in the controller in advance, and the jump state of the pressure switch is determined according to the comparison result; judging whether the maintaining time of the kick state is longer than a preset time; if the maintenance time is longer than the preset time, the pressure switch is judged to be in the on/off state, so that the purpose of accurately judging the on/off state of the pressure switch even if the contact of the pressure switch is oxidized and corroded is achieved, the technical effect of accurately judging the on/off state of the pressure switch is achieved, and the technical problem that the pressure switch cannot accurately detect signals in an aging environment to cause abnormal use of the electric pressure cooker in the prior art is solved. The problem that the pressure switch cannot accurately detect due to shaking of the contact points of the pressure switch is avoided.
Specifically, the method for judging the pressure switch state provided in the embodiment of the present application specifically includes the following steps in the detection process:
optionally, in step S102, comparing the collected switch detection value of the pressure switch with a state value stored in the controller in advance, and determining the kick state of the pressure switch according to the comparison result includes:
step S1021, acquiring a switch detection value acquired by a pressure switch;
step S1022, judging whether the difference between the switch detection value and the state value is larger than a kick value;
step S1023, if the difference between the switch detection value and the state value is larger than the kick value, the pressure switch enters the kick state;
the kick state is that the pressure switch is switched from a closed state to an open state or from an open state to a closed state.
Further, optionally, the state value includes a closed state value when the pressure switch is closed or an open state value when the pressure switch is open; under the condition that the pressure switch is in a closed state, judging whether the difference value between the switch detection value and the closed state value is larger than a kick value, and if the difference value between the switch detection value and the closed state value is larger than the kick value, entering the kick state by the pressure switch, wherein the kick state comprises: switching from the closed state to the open state; under the condition that the pressure switch is in an off state, judging whether the difference value between the switch detection value and the off state value is larger than a kick value, and if the difference value between the switch detection value and the off state value is larger than the kick value, entering the kick state by the pressure switch, wherein the kick state comprises: switching from the open state to the closed state.
Specifically, taking the example in steps S102 to S106 as an example, the first controller or the first control module obtains the switch detection value of the pressure switch, compares the switch detection value with the open state value stored in the second controller (the second control module) and the close state value stored in the third controller (the third control module), calculates the difference between the switch detection value and the open state value, and the difference between the switch detection value and the close state value, and determines whether the difference is greater than the kick value, and if the determination result is yes, considers that the pressure switch is subject to a kick. The pressure switch is switched from the closed state to the open state or from the open state to the closed state, and the collected switch detection value is compared with the state values in the two states through the judgment calculation, so that the kick state of the pressure switch is determined, and a judgment basis is provided for the state of the subsequent pressure switch.
Optionally, the kick value is greater than or equal to 5. In this embodiment of the present application, the kick value indicates the span size between the current switch detection value and the two state values, when the span is large, the state of the current switch detection value and the set open state value or closed state value are considered not to belong to the same state, otherwise, if the span is small in the error allowable range, it is indicated that the state of the current switch detection value and the set open state value or closed state value belong to the same state, and it is to be noted that the above data are all test data, and the corresponding numerical values are determined according to the set differences, so that the method for judging the pressure switch state provided in the embodiment of the present application is determined as being accurate, and is not limited in detail.
Further optionally, if the maintaining time is greater than the preset time in step S104, determining that the pressure switch is in the on/off state includes:
under the condition that the pressure switch is in a closed state, if the maintaining time of the kick state is longer than the preset time, determining that the state of the pressure switch is changed, wherein the state change of the pressure switch comprises: switching from the closed state to the open state; if the maintaining time of the kick state is smaller than the preset time, determining that the pressure switch maintains the closed state;
under the condition that the pressure switch is in an off state, if the maintaining time of the kick state is longer than a preset time, determining that the state of the pressure switch is changed, wherein the state change of the pressure switch comprises: switching from an open state to a closed state; if the maintaining time of the kick state is smaller than the preset time, the pressure switch is determined to maintain the off state.
Specifically, whether the kick state changes in a period of time is judged through time delay, if the kick state is stable and does not change any more in a short time, the difference between a switch detection value and a state value caused by jitter of the pressure switch is indicated, and the pressure switch is not changed, otherwise, if the kick state continues for a long time, namely, the state of the pressure switch changes repeatedly, the current state of the pressure switch is indicated.
Optionally, determining that the state of the pressure switch is changed in step S106 includes:
under the switching condition that the state of the pressure switch is switched from the closed state to the open state, the switch detection value detected last in the maintaining time is updated to be an open state value;
in the case of switching the state of the pressure switch from the open state to the closed state, the switch detection value last detected in the holding time is updated to the closed state value.
Specifically, when it is determined that the state of the pressure switch has changed, the state of the pressure switch at present may be determined by maintaining the switch detection value detected at the last moment in time, for example, the switch detection value 200 is detected, which indicates that the pressure switch is closed at this time, and if the switch detection value 20 is detected, it indicates that the pressure switch is opened at this time, so that the state corresponding to the switch detection value is determined as the last state of the pressure switch.
Optionally, the switch detection values are multiple, and in a preset time, the pressure switch is in a kick state by the multiple switch detection values.
Specifically, in the embodiment of the present application, the switch detection values may be obtained through multiple detection, where in the embodiment of the present application, taking obtaining at least 10 switch detection values as an example, by comparing a plurality of switch detection values with a state value, it is determined whether the pressure switch is in a kick state, and then the state of the final pressure switch is determined. It should be noted that, for illustration, in the embodiment of the present application, only 10 switch detection values are taken as an example to illustrate that the method for determining the pressure switch state provided in the embodiment of the present application is implemented, and the method is not limited specifically.
Optionally, the preset time is 1-2 seconds.
Optionally, the method for judging the pressure switch state provided in the embodiment of the present application further includes: and judging the initial state of the pressure switch, and determining whether the initial state of the pressure switch is a closed state or an open state.
Further, optionally, the state value includes a closed state value when the pressure switch is closed or an open state value when the pressure switch is open; determining whether the initial state of the pressure switch is the closed state or the open state includes:
comparing a first difference between the switch detection value and the closed state value with a second difference between the switch detection value and the open state value; if the first difference value is smaller than the second difference value, the pressure switch is in a closed state; if the first difference is greater than the second difference, the pressure switch is in an off state.
Specifically, the initial state of the pressure switch may be determined by comparing the detected value of the switch with the difference between the closed state value and the open state value, and if the difference between the detected value of the switch and the closed state value is greater than the difference between the detected value of the switch and the open state value, it is indicated that the pressure switch is in the open state at this time, and conversely, the pressure switch is in the closed state.
Specifically, fig. 3 is a flow chart of a method for determining a pressure switch state according to an embodiment of the present invention; as shown in fig. 3, the method for determining the pressure switch state provided in the embodiment of the present application specifically includes the following steps:
step1, collecting a switch detection value Ax of a pressure switch;
step2, judging the pressure switch state corresponding to the switch detection value, if the pressure switch state is the closed state, executing Step3, and if the pressure switch state is the open state, executing Step4;
step3, calculating whether the difference value between the switch detection value and the closed state value is larger than a kick value, and then executing Step5;
step4, calculating whether the difference value between the switch detection value and the disconnection state value is larger than a kick value, and then executing Step5;
step5, starting timing, and judging whether the maintaining time T1 of the kick state is larger than the preset time Tj or not; if yes, executing Step6; if not, executing Step 7;
step6, if the pressure switch state in Step2 is the closed state, storing the switch detection value into a controller of an open state value, adjusting the pressure switch from the closed state to the open state, and resetting a timer; if the pressure switch state in Step2 is in an open state, storing the switch detection value into a controller of a closed state value, adjusting the state of the pressure switch from the open state to the closed state, and resetting a timer;
step7, the state of the pressure switch is unchanged.
By the judging method, the problem that food is not cooked due to abnormal work of a product caused by jumping of the pressure switch during cooking caused by shaking can be effectively solved, and whether the state is changed or not is judged in a time delay mode, so that the technical effect of accurately judging the state of closing or opening the pressure switch is achieved.
Example 2
According to another aspect of the embodiment of the present invention, there is further provided a device for determining a state of a pressure switch, and fig. 3 is a schematic diagram of the device for determining a state of a pressure switch according to an embodiment of the present invention, as shown in fig. 4, applied to a cooking appliance, including: the comparison module 42 is configured to compare the collected switch detection value of the pressure switch with a state value stored in the controller in advance, and determine a kick state of the pressure switch according to a comparison result; a judging module 44, configured to judge whether the duration of the kick state is greater than a preset time; the detection module 46 is configured to determine that the pressure switch is in the on/off state if the maintenance time is greater than the preset time, so that the technical effect of accurately determining the on/off state of the pressure switch is achieved through the delay determination.
Example 3
According to an aspect of the embodiment of the present invention, there is also provided a cooking appliance including: the judgment device of the pressure switch state, wherein the judgment device of the pressure switch state includes the device in the above embodiment 2.
Optionally, the cooking appliance includes: an electric pressure cooker.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology content may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (13)
1. The method for judging the state of the pressure switch is characterized by being applied to a cooking appliance and comprising the following steps of:
comparing the acquired switch detection value of the pressure switch with a state value stored in the controller in advance, and determining a kick state of the pressure switch according to a comparison result;
judging whether the maintaining time of the kick state is longer than a preset time;
and if the maintaining time is longer than the preset time, judging that the pressure switch is in a closed/open state.
2. The method of claim 1, wherein comparing the collected switch detection value of the pressure switch with a state value stored in the controller in advance, and determining the kick state of the pressure switch according to the comparison result, comprises:
acquiring a switch detection value acquired by the pressure switch;
judging whether the difference value between the switch detection value and the state value is larger than a kick value or not;
if the difference value between the switch detection value and the state value is larger than the kick value, the pressure switch enters a kick state;
the kick state is that the pressure switch is switched from a closed to an open state or from an open to a closed state.
3. The method of claim 2, wherein the step of determining the position of the substrate comprises,
the state value comprises a closing state value when the pressure switch is closed or an opening state value when the pressure switch is opened;
judging whether the difference value between the switch detection value and the closing state value is larger than the kick value or not under the condition that the pressure switch is in the closing state, and if the difference value between the switch detection value and the closing state value is larger than the kick value, the pressure switch enters the kick state, wherein the kick state comprises: switching from the closed state to an open state;
judging whether the difference value between the switch detection value and the disconnection state value is larger than a kick value or not under the condition that the pressure switch is in the disconnection state, and if the difference value between the switch detection value and the disconnection state value is larger than the kick value, entering the kick state by the pressure switch, wherein the kick state comprises: switching from the open state to the closed state.
4. The method of claim 2, wherein the kick value is 5 or more.
5. The method of claim 3, wherein determining that the pressure switch is in the on/off state if the hold time is greater than the preset time comprises:
under the condition that the pressure switch is in a closed state, if the maintaining time of the kick state is greater than or equal to the preset time, determining that the state of the pressure switch is changed, wherein the change of the state of the pressure switch comprises: switching from the closed state to an open state; if the maintaining time of the kick state is smaller than the preset time, determining that the pressure switch maintains the closed state;
under the condition that the pressure switch is in an off state, if the maintaining time of the kick state is greater than or equal to the preset time, determining that the state of the pressure switch is changed, wherein the change of the state of the pressure switch comprises: switching from the open state to a closed state; and if the maintaining time of the kick state is smaller than the preset time, determining that the pressure switch maintains the disconnection state.
6. The method of claim 5, wherein said determining that the state of the pressure switch has changed comprises:
under the switching condition that the state of the pressure switch is switched from the closed state to the open state, the switch detection value detected last in the maintaining time is updated to the open state value;
and under the switching condition that the state of the pressure switch is switched from the open state to the closed state, updating the switch detection value finally detected in the maintaining time to the closed state value.
7. The method of claim 1, wherein the switch detection values are plural, and the plural switch detection values place the pressure switch in a kick state during the preset time.
8. The method of claim 1, wherein the predetermined time is 1-2 seconds.
9. The method according to claim 1, wherein the method further comprises: and judging the initial state of the pressure switch, and determining whether the initial state of the pressure switch is a closed state or an open state.
10. The method of claim 9, wherein the state value comprises a closed state value when the pressure switch is closed or an open state value when the pressure switch is open; determining whether the initial state of the pressure switch is a closed state or an open state includes:
comparing a first difference between the switch detection value and the closed state value with a second difference between the switch detection value and the open state value;
if the first difference value is smaller than the second difference value, the pressure switch is in a closed state;
and if the first difference value is larger than the second difference value, the pressure switch is in an off state.
11. The utility model provides a judging device of pressure switch state which characterized in that is applied to cooking utensil, includes:
the comparison module is used for comparing the acquired switch detection value of the pressure switch with a state value stored in the controller in advance and determining a kick state of the pressure switch according to a comparison result;
the judging module is used for judging whether the maintaining time of the kick state is longer than the preset time;
and the state confirmation module is used for judging that the pressure switch is in a closed/open state if the maintenance time is longer than the preset time.
12. A cooking appliance, comprising: a pressure switch state judging device, wherein the pressure switch state judging device comprises the device of claim 11.
13. The cooking appliance of claim 12, wherein the cooking appliance comprises: an electric pressure cooker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911054399.0A CN112741487B (en) | 2019-10-31 | 2019-10-31 | Method and device for judging pressure switch state and cooking utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911054399.0A CN112741487B (en) | 2019-10-31 | 2019-10-31 | Method and device for judging pressure switch state and cooking utensil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112741487A CN112741487A (en) | 2021-05-04 |
| CN112741487B true CN112741487B (en) | 2023-07-14 |
Family
ID=75644744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911054399.0A Active CN112741487B (en) | 2019-10-31 | 2019-10-31 | Method and device for judging pressure switch state and cooking utensil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112741487B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113390452B (en) * | 2021-06-16 | 2023-08-18 | 北京康斯特仪表科技股份有限公司 | Method and device for calibrating switch type instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10290749A (en) * | 1997-04-21 | 1998-11-04 | Matsushita Electric Ind Co Ltd | Electric pressure cooker |
| TW200946884A (en) * | 2008-05-09 | 2009-11-16 | Hon Hai Prec Ind Co Ltd | Manometric counter |
| CN104367182A (en) * | 2014-11-25 | 2015-02-25 | 九阳股份有限公司 | Electric pressure cooker capable of conducting low-pressure cooking |
| CN105865765A (en) * | 2016-03-31 | 2016-08-17 | 北京康斯特仪表科技股份有限公司 | Apparatus and method for detecting switching value of pressure switch |
-
2019
- 2019-10-31 CN CN201911054399.0A patent/CN112741487B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10290749A (en) * | 1997-04-21 | 1998-11-04 | Matsushita Electric Ind Co Ltd | Electric pressure cooker |
| TW200946884A (en) * | 2008-05-09 | 2009-11-16 | Hon Hai Prec Ind Co Ltd | Manometric counter |
| CN104367182A (en) * | 2014-11-25 | 2015-02-25 | 九阳股份有限公司 | Electric pressure cooker capable of conducting low-pressure cooking |
| CN105865765A (en) * | 2016-03-31 | 2016-08-17 | 北京康斯特仪表科技股份有限公司 | Apparatus and method for detecting switching value of pressure switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112741487A (en) | 2021-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102654979B1 (en) | Electrical fuse current detection system and monitoring method | |
| JP6611370B2 (en) | Method, computer program, and electromechanical component for monitoring an electromechanical component of an automation system | |
| US20170229269A1 (en) | Systems and methods for controlling relay activation timing | |
| CN105476441B (en) | Thermal-insulation control method, device and the cooking apparatus of cooking apparatus | |
| CN112741487B (en) | Method and device for judging pressure switch state and cooking utensil | |
| CN109144139B (en) | Method and device for determining type of pot in pot and pot | |
| CN111743384A (en) | Multipurpose kitchen machine with boiling point identification | |
| CN107014508B (en) | Temperature detection method and device, storage medium and processor | |
| CN111336565B (en) | Fire-off detection method and device for cooking equipment, range hood and storage medium | |
| US20190078793A1 (en) | Automatic oven with humidity sensor | |
| JP2020501251A (en) | Method for monitoring electromechanical components of an automation system | |
| KR101292933B1 (en) | Method, apparatus, and computer-readable recording medium for identifying appliance, and power monitoring system | |
| EP2983189B1 (en) | Methods, apparatus and articles of manufacture to regulate relay coil switching | |
| CN109237545A (en) | The control method and anti-dry system of anti-dry | |
| CN108354456B (en) | Heating control method and device and food heating device | |
| CN108693798B (en) | Pot dry-cooking judgment method and device for electric cooker and electric cooker | |
| CN110652185B (en) | Cooking appliance and control method and device thereof | |
| CN118203275A (en) | Method for operating a dishwasher, electrical appliance combination and program product | |
| CN111412506B (en) | Starting detection method and device of cooking equipment, range hood and storage medium | |
| CN114256807A (en) | Control method, device, medium and system for realizing overheating protection | |
| CN113359902A (en) | Relay circuit of temperature control product and control method | |
| CN109984616B (en) | Processing method of touch key and cooking appliance | |
| CN112137399B (en) | Method for controlling a cooking appliance and cooking appliance | |
| CN112859647B (en) | Cooking curve adjusting method and device, household appliance and storage medium | |
| CN117918723A (en) | Control method of cooking appliance and cooking appliance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |