CN112558506A - Control method, kitchen device and computer-readable storage medium - Google Patents
Control method, kitchen device and computer-readable storage medium Download PDFInfo
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- CN112558506A CN112558506A CN201910911747.5A CN201910911747A CN112558506A CN 112558506 A CN112558506 A CN 112558506A CN 201910911747 A CN201910911747 A CN 201910911747A CN 112558506 A CN112558506 A CN 112558506A
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- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2643—Oven, cooking
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Abstract
The invention discloses a control method, a kitchen device and a computer readable storage medium. The kitchen device comprises an organic matter molecule sensor, the organic matter molecule sensor is used for detecting the concentration of organic matter molecules in an oil smoke air duct of the kitchen device and outputting a signal according to the concentration of the organic matter molecules, and the control method comprises the following steps: acquiring the environmental temperature and/or the environmental humidity of the organic molecular sensor; acquiring a driving signal parameter of the organic matter molecular sensor according to the environmental temperature and/or the environmental humidity; driving the organic matter molecule sensor by using the acquired driving signal parameters; or acquiring an output signal of the organic matter molecular sensor and the environmental temperature and/or the environmental humidity of the organic matter molecular sensor; and compensating the output signal of the organic matter molecule sensor according to the ambient temperature and/or the ambient humidity. By the control method, adverse effects of temperature and/or humidity on the organic matter molecule sensor are reduced, and therefore the detection precision of the organic matter molecule concentration is improved.
Description
Technical Field
The invention relates to the technical field of kitchen devices, in particular to a control method, a kitchen device and a computer readable storage medium.
Background
In the related art, a VOC sensor (organic molecule sensor) is used to detect the content of organic molecules in soot to determine the soot concentration. The VOC sensor generally incorporates an electric component such as a resistor, and the resistance value of the resistor generally changes depending on the content of organic molecules. However, the resistance value of the resistance of the VOC sensor is easily affected by the VOC sensor temperature and the ambient humidity, which affects the detection accuracy of the VOC sensor.
Disclosure of Invention
The invention provides a control method, a kitchen device and a computer readable storage medium.
The control method of the embodiment of the invention is used for a kitchen device, the kitchen device comprises an organic molecule sensor, the organic molecule sensor is used for detecting the concentration of organic molecules in an oil fume air flue of the kitchen device and outputting a signal according to the concentration of the organic molecules, and the control method comprises the following steps:
acquiring the ambient temperature and/or ambient humidity of the organic matter molecular sensor;
acquiring a driving signal parameter of the organic matter molecular sensor according to the environment temperature and/or the environment humidity;
driving the organic matter molecular sensor by using the acquired driving signal parameters; or
Acquiring an output signal of the organic matter molecular sensor and the environmental temperature and/or the environmental humidity of the organic matter molecular sensor;
and compensating the output signal of the organic matter molecular sensor according to the environmental temperature and/or the environmental humidity of the organic matter molecular sensor.
According to the control method provided by the embodiment of the invention, the driving signal parameters of the organic molecular sensor are obtained according to the environment temperature and/or the environment humidity of the organic molecular sensor to drive the organic molecular sensor, so that the temperature compensation of the driving of the organic molecular sensor can be realized; or the output signal of the organic matter molecule sensor is compensated according to the environment temperature and/or the environment humidity of the organic matter molecule sensor. Therefore, the adverse effect of temperature and/or humidity on the organic matter molecule sensor is reduced, and the detection precision of the concentration of the organic matter molecules is improved.
In some embodiments, the drive signal parameters include pulse width modulation parameters including at least one of drive voltage, pulse frequency, and pulse duty cycle.
In this way, the driving of the organic molecule sensor is controlled by the pulse width modulation signal.
In certain embodiments, the driving voltage is in a positive correlation with the ambient temperature, the pulse frequency is in a positive correlation with the ambient temperature, the pulse duty cycle is in an inverse correlation with the ambient temperature, the driving voltage is in a positive correlation with the ambient humidity, the pulse frequency is in a positive correlation with the ambient humidity, and the pulse duty cycle is in an inverse correlation with the ambient humidity.
In this way, at least one of the driving voltage, the pulse frequency and the pulse duty ratio is adjusted according to the relationship between the temperature and the humidity and the driving voltage, the pulse frequency and the pulse duty ratio, so as to adjust the driving current for the organic molecule sensor.
In some embodiments, before obtaining the ambient temperature and the ambient humidity at which the organic molecule sensor is located, the control method includes: judging whether the numerical value of the signal output by the organic matter molecular sensor is in a preset range or not; and under the condition that the numerical value of the signal is in the preset range, entering a step of acquiring the ambient temperature and the ambient humidity of the organic matter molecular sensor.
Therefore, under the normal condition of the signal output by the organic matter molecular sensor, the ambient temperature and the ambient humidity of the organic matter molecular sensor are obtained, and the deviation of subsequent control is avoided.
In certain embodiments, the control method comprises: and controlling the kitchen device to send out a fault prompt under the condition that the numerical value of the signal is not in the preset range.
So, under the condition that organic matter molecule sensor can not normally work, send trouble suggestion so that overhaul.
In some embodiments, the kitchen device includes a circuit board and a temperature and humidity sensor, the temperature and humidity sensor and the organic molecular sensor are disposed on the circuit board, a distance between the temperature and humidity sensor and the organic molecular sensor is greater than a preset value, and the circuit board is provided with an accommodating groove for accommodating the temperature and humidity sensor.
Therefore, the temperature and humidity sensor is prevented from being influenced by the organic matter molecular sensor, and the temperature and humidity detection numerical value is not accurate.
The kitchen device comprises an organic matter molecule sensor, a driving circuit and a controller, wherein the organic matter molecule sensor is used for detecting the concentration of organic matter molecules in an oil fume duct of the kitchen device and outputting signals according to the concentration of the organic matter molecules, the controller is connected with the driving circuit and the organic matter molecule sensor, the controller is used for acquiring the ambient temperature and/or the ambient humidity of the organic matter molecule sensor, acquiring the driving signal parameters of the organic matter molecule sensor according to the ambient temperature and/or the ambient humidity, and driving the organic matter molecule sensor by using the acquired driving signal parameters, or the controller is used for acquiring the output signals of the organic matter molecule sensor and the ambient temperature and/or the ambient humidity of the organic matter molecule sensor, and the compensation processing unit is used for compensating the output signal of the organic matter molecular sensor according to the environmental temperature and/or the environmental humidity where the organic matter molecular sensor is located.
According to the kitchen device provided by the embodiment of the invention, the driving signal parameters of the organic matter molecular sensor are obtained according to the environment temperature and/or the environment humidity of the organic matter molecular sensor to drive the organic matter molecular sensor, so that the temperature compensation of the driving of the organic matter molecular sensor can be realized; or the output signal of the organic matter molecule sensor is compensated according to the environment temperature and/or the environment humidity of the organic matter molecule sensor. Therefore, the adverse effect of temperature and/or humidity on the organic matter molecule sensor is reduced, and the detection precision of the concentration of the organic matter molecules is improved.
In some embodiments, the drive signal parameters include pulse width modulation parameters including at least one of drive voltage, pulse frequency, and pulse duty cycle.
In this way, the driving of the organic molecule sensor is controlled by the pulse width modulation signal.
In certain embodiments, the driving voltage is in a positive correlation with the ambient temperature, the pulse frequency is in a positive correlation with the ambient temperature, the pulse duty cycle is in an inverse correlation with the ambient temperature, the driving voltage is in a positive correlation with the ambient humidity, the pulse frequency is in a positive correlation with the ambient humidity, and the pulse duty cycle is in an inverse correlation with the ambient humidity.
In this way, at least one of the driving voltage, the pulse frequency and the pulse duty ratio is adjusted according to the relationship between the temperature and the humidity and the driving voltage, the pulse frequency and the pulse duty ratio, so as to adjust the driving current for the organic molecule sensor.
In some embodiments, the controller is configured to determine whether a value of a signal output by the organic molecule sensor is within a preset range, and acquire an ambient temperature and an ambient humidity at which the organic molecule sensor is located when the value of the signal is within the preset range.
Therefore, under the normal condition of the signal output by the organic matter molecular sensor, the ambient temperature and the ambient humidity of the organic matter molecular sensor are obtained, and the deviation of subsequent control is avoided.
In some embodiments, the controller is configured to control the kitchen device to issue a fault notification if the value of the signal is not within the preset range.
So, under the condition that organic matter molecule sensor can not normally work, send trouble suggestion so that overhaul.
In some embodiments, the kitchen device includes a circuit board and a temperature and humidity sensor, the temperature and humidity sensor and the organic molecular sensor are disposed on the circuit board, a distance between the temperature and humidity sensor and the organic molecular sensor is greater than a preset value, and the circuit board is provided with an accommodating groove for accommodating the temperature and humidity sensor.
Therefore, the temperature and humidity sensor is prevented from being influenced by the organic matter molecular sensor, and the temperature and humidity detection numerical value is not accurate.
A computer-readable storage medium of an embodiment of the present invention has a computer program stored thereon, which when executed by a processor, implements the steps of the control method of any of the above-described embodiments.
According to the computer-readable storage medium of the embodiment of the invention, the drive signal parameters of the organic molecular sensor are obtained according to the environment temperature and/or the environment humidity of the organic molecular sensor to drive the organic molecular sensor, so that the temperature compensation of the drive of the organic molecular sensor can be realized; or the output signal of the organic matter molecule sensor is compensated according to the environment temperature and/or the environment humidity of the organic matter molecule sensor. Therefore, the adverse effect of temperature and/or humidity on the organic matter molecule sensor is reduced, and the detection precision of the concentration of the organic matter molecules is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 and 2 are flowcharts of a control method of an embodiment of the present invention;
FIG. 3 is a schematic diagram of a kitchen unit according to an embodiment of the invention;
FIG. 4 is a block diagram of a kitchen unit according to an embodiment of the present invention;
FIG. 5 is a graph of temperature versus drive parameter for an embodiment of the present invention;
FIG. 6 is a graph showing the relationship between the soot concentration and the resistance value according to the embodiment of the present invention;
FIG. 7 is another flow chart of a control method of an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a circuit board according to an embodiment of the present invention.
Description of the main element symbols:
the kitchen device 100, the organic molecule sensor 102, the temperature and humidity sensor 104, the controller 105, the driving circuit 106, the detection circuit 107, the storage tank 108, the circuit board 109, the shielding portion 110, and the opening 111.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 3, a control method according to an embodiment of the present invention is applied to a kitchen device 100. The kitchen apparatus 100 includes a range hood, an integrated cooker, and the like having a function of discharging oil smoke. It can be understood that the range hood can be a variable frequency range hood. The integrated cooker comprises a range hood, and the range hood can be a frequency conversion range hood. In the example of fig. 3, the kitchen device 100 is a range hood. It is understood that the range hood may be an upper exhaust range hood, a lower exhaust range hood, or a side exhaust range hood, which is not particularly limited herein. The kitchen unit 100 is described in detail below as an example of an updraft range hood.
Referring to fig. 3, the kitchen device 100 includes an organic molecule sensor 102, and the organic molecule sensor 102 is configured to detect a concentration of organic molecules in an oil smoke duct of the kitchen device 100 and output a signal according to the concentration of the organic molecules. The galley apparatus 100 also includes a baffle assembly 10, a tank 20, and a check valve 30. The case 20 is provided on the guide plate assembly 10. A fan assembly 21 is provided in the case 20. A check valve 30 is attached to the top of the tank 20. The fan assembly 21 includes a volute 22 and a fan 23 disposed within the volute 22. The guide plate assembly 10 is provided with a smoke collecting cavity, the outlet of the check valve 40 is connected with a smoke pipe 24, the organic matter molecule sensor 102 is installed on the smoke collecting cavity, the volute 22, the check valve 30 and the smoke pipe 24, the organic matter molecule sensor 102 is used for detecting the concentration of organic matter molecules 102 in the smoke collecting cavity 11, the volute 22, the check valve 30 and the smoke pipe 24, and the kitchen device 100 can control the operation of the fan 23 according to the concentration of the organic matter molecules 102.
The kitchen device 100 in the present embodiment is suitable for being mounted on a range in a home kitchen, and is also suitable for a large kitchen in a restaurant. In one example, when a user performs cooking on a kitchen range, oil smoke is generated during the cooking process, the oil smoke contains a large amount of organic molecules and oil smoke particles, and generally, the concentration of the organic molecules is in direct proportion to the concentration of the oil smoke, so that the concentration of the oil smoke can be determined by detecting the concentration of the organic molecules. The organic molecule sensor 102 installed in the kitchen device 100 can detect the concentration of organic molecules contained in the oil smoke, know the concentration of oil smoke particles in the current kitchen, and adjust the rotation speed of the fan 23 according to the concentration of organic molecules contained in the current oil smoke to adjust the air volume of the fan 23. Therefore, the concentration of the oil smoke in the kitchen can be effectively purified in real time, the health of a human body is protected, and when the concentration of the oil smoke is relatively low, the power of the fan assembly 21 can be properly reduced, and energy is saved. It can be understood that the organic molecule sensor 102 outputs a signal according to the concentration of organic molecules in the oil smoke duct, and the output signal represents the oil smoke concentration. The output signal can be an optical signal, an electrical signal, or other signals capable of representing the concentration of the oil smoke. In the present invention, the organic matter molecule concentration corresponds to the soot concentration.
The organic molecule sensor 102 may be a VOC (volatile organic compound) sensor. In the illustrated embodiment, the organic molecule sensor 102 is installed in the smoke collection chamber, the spiral case 22, the check valve 30 and the smoke tube 24, so that the organic molecule sensor 102 can detect the concentration of organic molecules in the smoke collection chamber, the spiral case 22, the check valve 30 and the smoke tube 24, and can average the concentration data of organic molecules collected from the four organic molecule sensors 102, and the average value is used as a basis for controlling the operation of the blower 23. It is understood that in other embodiments, the data collected by the plurality of organic molecule sensors 102 may be weighted differently to calculate the data ultimately relied upon to control the operation of the fan 23. In further embodiments, the organic molecule sensor 102 may be mounted on one or two or three of the smoke-holding chamber, the volute 22, the check valve 30, and the smoke tube 24.
Referring to fig. 1, a control method according to an embodiment of the present invention includes:
step S20: acquiring the ambient temperature and/or ambient humidity of the organic molecule sensor 102;
step S30: acquiring a driving signal parameter of the organic matter molecule sensor 102 according to the environmental temperature and/or the environmental humidity;
step S40: the obtained drive signal parameters are used to drive the organic molecule sensor 102.
Referring to fig. 2, the control method according to the embodiment of the present invention includes:
step S120: acquiring an output signal of the organic molecule sensor 102 and the ambient temperature and/or the ambient humidity at which the organic molecule sensor 102 is located;
step S140: and compensating the output signal of the organic molecule sensor 102 according to the ambient temperature and/or the ambient humidity at which the organic molecule sensor 102 is located.
According to the control method provided by the embodiment of the invention, the driving signal parameters of the organic molecule sensor 102 are obtained according to the environment temperature and/or the environment humidity of the organic molecule sensor 102 to drive the organic molecule sensor 102, so that the temperature compensation of the driving of the organic molecule sensor 102 can be realized; or the output signal of the organic molecule sensor 102 is compensated according to the ambient temperature and/or the ambient humidity at which the organic molecule sensor 102 is located. In this way, adverse effects of temperature and/or humidity on the organic molecule sensor 102 are reduced, thereby improving the detection accuracy of the organic molecule concentration 102.
Referring to fig. 4, the range hood 100 further includes a temperature and humidity sensor 104, a controller 105, a driving circuit 106, and a detecting circuit 107. The controller 105 is connected to the drive circuit 106, the detection circuit 107, and the temperature/humidity sensor 104. The organic molecule sensor 102 is connected to a drive circuit 106 and a detection circuit 107. The organic molecule sensor 102 generally has two built-in resistors, one of which is a heating resistor, and the other is a gas-sensitive resistor with a special coating on the surface. The heating resistor is electrified to heat the organic matter molecule sensor 102, and the resistance value of the gas sensitive resistor changes according to the concentration of the organic matter molecules in the current oil smoke. In the present embodiment, the output signal of the organic molecule sensor 102 is an electrical signal, specifically, a resistance signal of a gas sensor. The driving circuit 106 drives the heating resistor to heat the organic molecule sensor 102, and the detection circuit 107 detects the resistance value of the gas sensitive resistor. The following description will be made in detail taking an output signal of the organic molecule sensor 102 as an example of a resistance signal.
The environmental temperature and the environmental humidity of the organic molecular sensor 102 have a great influence on the characteristics of the gas-sensitive resistor. Therefore, in the present invention, the driving signal parameter of the organic molecule sensor 102 can be obtained according to the ambient temperature or the ambient humidity, and the organic molecule sensor 102 can be driven according to the driving signal parameter, so as to reduce the adverse effect of the temperature or the humidity on the organic molecule sensor 102, thereby improving the detection accuracy of the organic molecule concentration 102. Of course, it is also possible to obtain the driving signal parameter of the organic molecule sensor 102 according to the ambient temperature and the ambient humidity and drive the organic molecule sensor 102 according to the driving signal parameter. Or, the organic molecule sensor 102 is driven according to a default driving signal parameter, and then the output signal of the organic molecule sensor 102 is compensated according to the ambient temperature or ambient humidity at which the organic molecule sensor 102 is located, so that the finally determined resistance signal conforms to the current oil smoke condition, and the detection accuracy of the organic molecule concentration 102, that is, the detection accuracy of the oil smoke concentration, is ensured. Of course, the output signal of the organic molecule sensor 102 may be compensated according to the ambient temperature and the ambient humidity at which the organic molecule sensor 102 is located.
It should be noted that, the kitchen device 100 may pre-store a corresponding relationship between temperature and a driving signal parameter and a corresponding relationship between humidity and a driving signal parameter, the corresponding relationship may be obtained by testing a simulated actual usage environment of the kitchen device 100, and the obtained corresponding relationship may be stored in the kitchen device 100. The kitchen device 100 may be pre-stored with a compensation relationship between a temperature and a signal output by the organic molecule sensor 102 when the organic molecule sensor 102 is driven by the default driving signal parameter, and a compensation relationship between a humidity and a signal output by the organic molecule sensor 102 when the organic molecule sensor 102 is driven by the default driving signal parameter, where the compensation relationship may be obtained by testing a simulated actual use environment of the kitchen device 100, and the obtained compensation relationship may be stored in the kitchen device 100. The control method of the kitchen apparatus 100 shown in fig. 1 will be described in detail as an example.
Referring to fig. 5, in some embodiments, the driving signal parameters include Pulse Width Modulation (PWM) parameters, and the PWM parameters include at least one of a driving voltage, a Pulse frequency and a Pulse duty ratio. In this way, the driving of the organic molecule sensor is controlled by the pulse width modulation signal.
Specifically, the controller 105 may preset a corresponding relationship between the temperature and humidity and the pulse width modulation parameter, the corresponding relationship may be calibrated by simulating the kitchen device 100 in an actual use environment, and the calibrated corresponding relationship may be stored in the controller 105.
In the present embodiment, the drive signal parameter of the organic molecule sensor 102 is obtained from the ambient temperature and the ambient humidity at which the organic molecule sensor 102 is located, and the controller 105 controls the drive operation of the organic molecule sensor 102 based on the drive signal parameter corresponding to the ambient temperature and the ambient humidity. The driving signal parameters of the organic molecule sensor 102 are transmitted to the driving circuit 106 in the form of analog signals, and the driving circuit 106 provides appropriate driving current for the organic molecule sensor 102 according to the control signals of the pulse width modulation parameters.
In the present embodiment, the driving current supplied to the organic molecule sensor 102 may be adjusted by adjusting one of the driving voltage, the pulse frequency, and the pulse duty ratio, or the driving current supplied to the organic molecule sensor 102 may be adjusted by adjusting two of the driving voltage, the pulse frequency, and the pulse duty ratio, or the driving current supplied to the organic molecule sensor 102 may be adjusted by adjusting the driving voltage, the pulse frequency, and the pulse duty ratio, so that the precise organic molecule concentration is obtained.
Referring to fig. 5, in some embodiments, the driving voltage has a positive correlation with the ambient temperature, the pulse frequency has a positive correlation with the ambient temperature, the pulse duty ratio has an inverse correlation with the ambient temperature, the driving voltage has a positive correlation with the ambient humidity, the pulse frequency has a positive correlation with the ambient humidity, and the pulse duty ratio has an inverse correlation with the ambient humidity. In this way, at least one of the driving voltage, the pulse frequency, and the pulse duty ratio is adjusted in accordance with the relationship between the temperature and the humidity and the driving voltage, the pulse frequency, and the pulse duty ratio to adjust the driving current to the organic molecule sensor 102.
In the illustrated embodiment, the drive voltage of the pulse width modulation signal is kept constant, and the drive current supplied to the organic molecule sensor 102 is adjusted by adjusting the pulse duty ratio and the frequency of the pulse width modulation signal. The kitchen unit 100 typically operates at a temperature of-25 c to 55 c. When the temperature and humidity sensor 104 acquires that the ambient temperature of the organic molecule sensor 102 is 55 ℃, the controller 105 acquires that the pulse duty ratio corresponding to the pulse width modulation signal is 30% and the frequency is 1500Hz according to the acquired ambient temperature, then transmits the control signal including the driving voltage, the frequency and the pulse duty ratio to the driving circuit 106, and controls the driving circuit 106 to convert the control signal into the preset pulse width modulation signal (the driving voltage, the frequency and the pulse duty ratio) so as to provide the driving current for the organic molecule sensor 102.
After the organic molecule sensor 102 receives the driving current, the organic molecule sensor starts to work, the heating resistor of the organic molecule sensor 102 generates heat, the resistance value of the gas sensitive resistor of the organic molecule sensor 102 changes according to the content of organic matters in the environment, the detection circuit 107 detects the resistance value change of the gas sensitive resistor, and the controller 105 calculates the organic molecule concentration of the environment through a resistance signal fed back by the detection circuit 107. In one example, fig. 6 is a graph showing a correspondence relationship between the soot concentration (organic molecule concentration) and the value of the resistance signal.
Further, in another embodiment, when the ambient temperature is 25 ℃, the corresponding first driving voltage is 80V, and the ambient humidity is 80%, the corresponding second driving voltage is 60V, and an average value of the first driving voltage and the second driving voltage is calculated. The average value is a driving voltage which is supplied to the organic molecule sensor 102 by the controller 105 controlling the driving circuit 106. It is understood that when the ambient temperature is-25 deg.c, the corresponding first pulse frequency is 300Hz, and the ambient humidity is 80%, the corresponding second pulse frequency is 1000Hz, and the average of the first pulse frequency and the second pulse frequency is calculated. The average value is the pulse frequency that the controller 105 controls the drive circuit 106 to supply to the organic molecule sensor 102. Similarly, when the ambient temperature is 55 ℃, the corresponding duty ratio of the first pulse is 30%, and when the ambient humidity is 50%, the corresponding duty ratio of the second pulse is 80%, and the average value of the duty ratio of the first pulse and the duty ratio of the second pulse is calculated. The average value is the pulse duty ratio that the controller 105 controls the drive circuit 106 to supply to the organic molecule sensor 102. The driving signal parameters are integrated to accurately input the driving current, and the problem that the detection value of the organic matter molecular sensor is not accurate due to the ambient temperature and the ambient humidity is effectively solved. The drive current of the organic molecule sensor 102 may be determined by any of the above drive signal parameters, or may be determined by any of a plurality of drive signal parameters, or the drive current of the organic molecule sensor 102.
It should be noted that the driving voltage, the pulse frequency and the pulse duty ratio of the ambient temperature and the ambient humidity can also be determined by adopting weighting factors. The specific values set forth in the foregoing examples are merely illustrative of the practice of the invention and are not to be construed as limiting the invention. Other values may also be used in other examples or embodiments.
Referring to fig. 7, in some embodiments, before obtaining the ambient temperature and the ambient humidity at which the organic molecule sensor 102 is located, the control method includes:
step S10: judging whether the value of the signal output by the organic matter molecule sensor 102 is in a preset range;
if the value of the signal is within the preset range, the process proceeds to step S20: acquiring the ambient temperature and the ambient humidity of the organic molecule sensor 102;
if the value of the signal is not within the preset range, the process proceeds to step S12: controls the kitchen device 100 to give a fault indication.
It is understood that the predetermined range can be understood as the range of normal range of the organic molecule sensor 102. The span range may be calibrated when the organic molecule sensor 102 is selected. When the kitchen device 100 is powered on, the organic molecule sensor 102 starts to operate, and each time the kitchen device 100 is powered off and powered on again, the controller 105 initializes the output signal (e.g., resistance signal) of the organic molecule sensor 102 last time. This prevents the controller 105 from erroneously adjusting the fan air volume of the kitchen device 100 according to the previous data, which results in energy waste.
The detected value of the signal of the organic molecule sensor 102 is further determined whether the value of the signal output by the organic molecule sensor 102 is within a preset range. Under the condition that the value of the signal output by the organic molecule sensor 102 is within the preset range, the environmental temperature and the environmental humidity of the organic molecule sensor 102 are further detected, so that under the normal condition of the signal output by the organic molecule sensor 102, the environmental temperature and the environmental humidity of the organic molecule sensor 102 are obtained, and the deviation of subsequent control is avoided. When the value of the signal output by the organic molecule sensor 102 is not within the preset range, it indicates that the organic molecule sensor 102 or other components of the kitchen device 100 are malfunctioning, and the controller 105 may control the kitchen device 100 to issue a malfunction notification. The fault prompt may be a display device and/or voice module prompt and error on the kitchen device 100 to inform the user to take corresponding action.
In particular, the kitchen device 100 can include a display device and/or a speaker mounted on the baffle assembly 10. The kitchen device 100 may issue a malfunction notification via a display device and/or a speaker. Specifically, the display device may display "suspected malfunction of the organic molecule sensor 102, please overhaul", and the speaker may issue a beep or voice broadcast "suspected malfunction of the organic molecule sensor 102, please overhaul". Further, the malfunction notification may also be sent to a preset terminal by the kitchen device 100, and the preset terminal performs the notification. The default terminal includes, but is not limited to, a mobile phone, a tablet computer, a personal computer, a wearable smart device, and other household appliances (such as a refrigerator, a rice cooker, a pressure cooker, an air conditioner, etc.). The preset terminal may be registered with information of the kitchen device 100.
Referring to fig. 8, in some embodiments, the kitchen device 100 includes a circuit board 109 and a temperature and humidity sensor 104, the temperature and humidity sensor 104 and the organic molecule sensor 102 are disposed on the circuit board 109, a distance P between the temperature and humidity sensor 104 and the organic molecule sensor 102 is greater than a predetermined value, and the circuit board 109 is provided with a receiving slot 108 for receiving the temperature and humidity sensor 104. Therefore, the temperature and humidity sensor 104 is prevented from being influenced by the organic matter molecular sensor 102, and the temperature and humidity detection value is not accurate.
Specifically, during the operation of the organic molecule sensor 102, the heating resistance of the organic molecule sensor 102 will heat the organic molecule sensor 102, and a large amount of heat will be generated. In order to prevent the heat generated by the organic molecule sensor 102 from affecting the accuracy of the temperature and humidity sensor 104 for detecting the ambient temperature and the ambient humidity through the circuit board 109, the temperature and humidity sensor 104 and the organic molecule sensor 102 need to be physically connected to each other as far as possible. Therefore, the circuit board 109 is subjected to a grooving process, and the temperature/humidity sensor 104 is placed in the housing groove 108.
Specifically, the organic molecule sensor 102, the temperature and humidity sensor 104 and the controller 105 are all disposed on a circuit board 109, and the circuit board 109 is provided with a receiving slot 108 for receiving the temperature and humidity sensor 104, in an example, a distance between the temperature and humidity sensor 104 and the organic molecule sensor 102 is not less than 5 mm. It is understood that in other examples, the specific value of the preset value can be designed according to actual circuit requirements and space requirements, and is not limited in detail.
In the illustrated embodiment, the circuit board 109 is provided with a shielding portion 110, the shielding portion 110 encloses the accommodating groove 108, the shielding portion 110 is provided with an opening 111 communicated with the accommodating groove 108, and the opening 111 can enable the environment where the organic molecule sensor 102 is located to be substantially the same as the environment where the temperature and humidity sensor 104 is located. In other embodiments, the receiving groove 108 may be a groove directly formed on the surface of the circuit board 109.
Referring to fig. 3 and 4, a kitchen device 100 according to an embodiment of the present invention includes an organic molecule sensor 102, a driving circuit 106, and a controller 105. The organic molecule sensor 102 is configured to detect a concentration of organic molecules in an oil smoke duct of the kitchen device 100 and output a signal according to the concentration of the organic molecules. The controller 105 is connected to the drive circuit 106 and the organic molecule sensor 102. The controller 105 is configured to obtain an ambient temperature and/or an ambient humidity at which the organic molecule sensor 102 is located, obtain a driving signal parameter of the organic molecule sensor 102 according to the ambient temperature and/or the ambient humidity, and drive the organic molecule sensor 102 by using the obtained driving signal parameter. Or the controller 105 is configured to obtain an output signal of the organic molecule sensor 102 and an ambient temperature and/or an ambient humidity at which the organic molecule sensor 102 is located, and to perform compensation processing on the output signal of the organic molecule sensor 102 according to the ambient temperature and/or the ambient humidity at which the organic molecule sensor 102 is located.
In the kitchen device 100 according to the embodiment of the present invention, the driving signal parameter of the organic molecule sensor 102 is obtained according to the environmental temperature and/or the environmental humidity at which the organic molecule sensor 102 is located to drive the organic molecule sensor 102, so that temperature compensation for driving the organic molecule sensor 102 can be performed; or the output signal of the organic molecule sensor 102 is compensated according to the ambient temperature and/or the ambient humidity at which the organic molecule sensor 102 is located. In this way, adverse effects of temperature and/or humidity on the organic molecule sensor 102 are reduced, thereby improving the detection accuracy of the organic molecule concentration 102.
It should be noted that the explanation and the advantageous effects of the control method of the kitchen apparatus 100 according to the above embodiment are also applicable to the kitchen apparatus 100 according to the embodiment of the present invention, and are not detailed herein to avoid redundancy.
In some embodiments, the drive signal parameter comprises a pulse width modulation parameter comprising at least one of a drive voltage, a pulse frequency and a pulse duty cycle.
In this manner, the driving of the organic molecule sensor 102 is controlled by the pulse width modulation signal.
In some embodiments, the driving voltage is positively correlated with ambient temperature, the pulse frequency is positively correlated with ambient temperature, the pulse duty cycle is inversely correlated with ambient temperature, the driving voltage is positively correlated with ambient humidity, the pulse frequency is positively correlated with ambient humidity, and the pulse duty cycle is inversely correlated with ambient humidity.
In this way, at least one of the driving voltage, the pulse frequency, and the pulse duty ratio is adjusted according to the relationship between the temperature and the humidity and the driving voltage, the pulse frequency, and the pulse duty ratio, so as to adjust the driving current to the organic molecule sensor 102.
In some embodiments, the controller 105 is configured to determine whether the value of the signal output by the organic molecule sensor 102 is within a preset range, and to obtain the ambient temperature and the ambient humidity of the organic molecule sensor 102 if the value of the signal is within the preset range.
Therefore, under the condition that the signal output by the organic molecule sensor 102 is normal, the ambient temperature and the ambient humidity of the organic molecule sensor 102 are obtained, and the deviation of subsequent control is avoided. In some embodiments, the controller 105 is configured to control the kitchen device 100 to issue a fault notification if the value of the signal is not within a preset range.
In this way, when the organic molecule sensor 102 cannot operate normally, a failure prompt is issued to facilitate the maintenance.
Referring to fig. 8, in some embodiments, the kitchen device 100 includes a circuit board 109 and a temperature and humidity sensor 104, the temperature and humidity sensor 104 and the organic molecule sensor 102 are disposed on the circuit board 109, a distance between the temperature and humidity sensor 104 and the organic molecule sensor 102 is greater than a predetermined value, and the circuit board 109 is provided with a receiving slot 108 for receiving the temperature and humidity sensor 104.
Therefore, the temperature and humidity sensor 104 is prevented from being influenced by the organic matter molecule sensor 102, and the detection value is not accurate.
The computer readable storage medium of the embodiments of the present invention has a computer program stored thereon, which when executed by a processor, implements the steps of the control method of any of the above embodiments.
According to the computer-readable storage medium of the embodiment of the present invention, the driving signal parameter of the organic molecule sensor 102 is obtained according to the environmental temperature and/or the environmental humidity where the organic molecule sensor 102 is located to drive the organic molecule sensor 102, so that temperature compensation can be performed on the driving of the organic molecule sensor 102; or the output signal of the organic molecule sensor 102 is compensated according to the ambient temperature and/or the ambient humidity at which the organic molecule sensor 102 is located. In this way, adverse effects of temperature and/or humidity on the organic molecule sensor 102 are reduced, thereby improving the detection accuracy of the organic molecule concentration 102.
The computer-readable storage medium may be installed in the kitchen apparatus 100, or may be installed in an external device such as a cloud server, and the kitchen apparatus 100 acquires the program from the external device to execute the control method according to the embodiment of the present invention.
It will be appreciated that the computer program comprises computer program code. The computer program code may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable storage medium may include: any entity or device capable of carrying computer program code, recording medium, U-disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), software distribution medium, and the like.
In one example, the controller 105 of the kitchen device 100 is a single chip integrated with a processor, memory, communication module, etc. The processor may be a processor included in the controller 105, or may be a processor of an external device such as a cloud server. The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processing module-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions.
It should be understood that portions of embodiments of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (13)
1. A control method for a kitchen device, the kitchen device including an organic molecule sensor configured to detect a concentration of organic molecules in a cooking fume duct of the kitchen device and output a signal according to the concentration of the organic molecules, the control method comprising:
acquiring the ambient temperature and/or ambient humidity of the organic matter molecular sensor;
acquiring a driving signal parameter of the organic matter molecular sensor according to the environment temperature and/or the environment humidity;
driving the organic matter molecular sensor by using the acquired driving signal parameters; or
Acquiring an output signal of the organic matter molecular sensor and the environmental temperature and/or the environmental humidity of the organic matter molecular sensor;
and compensating the output signal of the organic matter molecular sensor according to the environmental temperature and/or the environmental humidity of the organic matter molecular sensor.
2. The control method of claim 1, wherein the drive signal parameters include pulse width modulation parameters including at least one of drive voltage, pulse frequency, and pulse duty cycle.
3. The control method according to claim 2, characterized in that the drive voltage has a positive correlation with the ambient temperature, the pulse frequency has a positive correlation with the ambient temperature, the pulse duty ratio has an inverse correlation with the ambient temperature, the drive voltage has a positive correlation with the ambient humidity, the pulse frequency has a positive correlation with the ambient humidity, and the pulse duty ratio has an inverse correlation with the ambient humidity.
4. The control method according to claim 1, wherein before acquiring the ambient temperature and the ambient humidity at which the organic molecule sensor is located, the control method comprises:
judging whether the numerical value of the signal output by the organic matter molecular sensor is in a preset range or not;
and under the condition that the numerical value of the signal is in the preset range, entering a step of acquiring the ambient temperature and the ambient humidity of the organic matter molecular sensor.
5. The control method according to claim 4, characterized by comprising:
and controlling the kitchen device to send out a fault prompt under the condition that the numerical value of the signal is not in the preset range.
6. The control method according to claim 1, wherein the kitchen device comprises a circuit board and a temperature and humidity sensor, the temperature and humidity sensor and the organic molecular sensor are arranged on the circuit board, a distance between the temperature and humidity sensor and the organic molecular sensor is larger than a preset value, and the circuit board is provided with an accommodating groove for accommodating the temperature and humidity sensor.
7. A kitchen device is characterized by comprising an organic matter molecule sensor, a driving circuit and a controller, wherein the organic matter molecule sensor is used for detecting the concentration of organic matter molecules in an oil fume air channel of the kitchen device and outputting a signal according to the concentration of the organic matter molecules, the controller is connected with the driving circuit and the organic matter molecule sensor, the controller is used for acquiring the ambient temperature and/or the ambient humidity where the organic matter molecule sensor is located, acquiring the driving signal parameters of the organic matter molecule sensor according to the ambient temperature and/or the ambient humidity and driving the organic matter molecule sensor by utilizing the acquired driving signal parameters, or the controller is used for acquiring the output signal of the organic matter molecule sensor and the ambient temperature and/or the ambient humidity where the organic matter molecule sensor is located, and the compensation processing unit is used for compensating the output signal of the organic matter molecular sensor according to the environmental temperature and/or the environmental humidity where the organic matter molecular sensor is located.
8. The kitchen device of claim 7, wherein the drive signal parameters include pulse width modulation parameters including at least one of drive voltage, pulse frequency, and pulse duty cycle.
9. The kitchen device according to claim 8, wherein the driving voltage is positively correlated with the ambient temperature, the pulse frequency is positively correlated with the ambient temperature, the pulse duty ratio is inversely correlated with the ambient temperature, the driving voltage is positively correlated with the ambient humidity, the pulse frequency is positively correlated with the ambient humidity, and the pulse duty ratio is inversely correlated with the ambient humidity.
10. The kitchen device of claim 7, wherein the controller is configured to determine whether a value of the signal output by the organic molecule sensor is within a preset range, and to obtain an ambient temperature and an ambient humidity of the organic molecule sensor when the value of the signal is within the preset range.
11. The kitchen device of claim 10, wherein the controller is configured to control the kitchen device to issue a malfunction notification if the signal is not within the preset range.
12. The kitchen device according to claim 7, wherein the kitchen device comprises a circuit board and a temperature and humidity sensor, the temperature and humidity sensor and the organic molecular sensor are arranged on the circuit board, a distance between the temperature and humidity sensor and the organic molecular sensor is larger than a preset value, and the circuit board is provided with an accommodating groove for accommodating the temperature and humidity sensor.
13. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when executed by a processor, implements the steps of the control method according to any one of claims 1 to 6.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010032054A1 (en) * | 2000-02-28 | 2001-10-18 | Yuji Kimoto | Control system |
| CN1973200A (en) * | 2004-06-21 | 2007-05-30 | 意大利电信股份公司 | Physical quantity, particularly humidity detection device, and related detecting method |
| CN101171508A (en) * | 2005-03-07 | 2008-04-30 | 传感电子公司 | Temperature feedback control for solid state gas sensors |
| CN102095762A (en) * | 2010-10-29 | 2011-06-15 | 广州博控自动化技术有限公司 | Oil fume data acquisition method |
| CN203433301U (en) * | 2013-09-05 | 2014-02-12 | 北京联合大学 | An automatic controller for a smoke exhaust ventilator |
| CN103852490A (en) * | 2012-12-05 | 2014-06-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Calibration module of turbidity sensor and scouring water turbidity detection system and method |
| CN104819500A (en) * | 2015-05-18 | 2015-08-05 | 广东美的厨房电器制造有限公司 | Extractor hood as well as gas flow detection method, device and air speed control method |
| CN106093178A (en) * | 2016-08-26 | 2016-11-09 | 西安鼎研科技有限责任公司 | The concentration of VOC gas sensor and the compensation circuit of temperature drift and method |
| CN106461234A (en) * | 2014-05-01 | 2017-02-22 | 布罗恩-努托恩有限责任公司 | Sensor-enabled range hood system and method |
| CN108955951A (en) * | 2018-07-25 | 2018-12-07 | 奥克斯空调股份有限公司 | A kind of temperature sensor fault judgment method and device |
| CN208382275U (en) * | 2018-05-16 | 2019-01-15 | 广东万和电气有限公司 | Automatic fume-extracting machine |
| CN110018275A (en) * | 2019-04-10 | 2019-07-16 | 南京能启能电子科技有限公司 | A kind of gas detector with compensation function and compensation method |
-
2019
- 2019-09-25 CN CN201910911747.5A patent/CN112558506A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010032054A1 (en) * | 2000-02-28 | 2001-10-18 | Yuji Kimoto | Control system |
| CN1973200A (en) * | 2004-06-21 | 2007-05-30 | 意大利电信股份公司 | Physical quantity, particularly humidity detection device, and related detecting method |
| CN101171508A (en) * | 2005-03-07 | 2008-04-30 | 传感电子公司 | Temperature feedback control for solid state gas sensors |
| CN102095762A (en) * | 2010-10-29 | 2011-06-15 | 广州博控自动化技术有限公司 | Oil fume data acquisition method |
| CN103852490A (en) * | 2012-12-05 | 2014-06-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Calibration module of turbidity sensor and scouring water turbidity detection system and method |
| CN203433301U (en) * | 2013-09-05 | 2014-02-12 | 北京联合大学 | An automatic controller for a smoke exhaust ventilator |
| CN106461234A (en) * | 2014-05-01 | 2017-02-22 | 布罗恩-努托恩有限责任公司 | Sensor-enabled range hood system and method |
| CN104819500A (en) * | 2015-05-18 | 2015-08-05 | 广东美的厨房电器制造有限公司 | Extractor hood as well as gas flow detection method, device and air speed control method |
| CN106093178A (en) * | 2016-08-26 | 2016-11-09 | 西安鼎研科技有限责任公司 | The concentration of VOC gas sensor and the compensation circuit of temperature drift and method |
| CN208382275U (en) * | 2018-05-16 | 2019-01-15 | 广东万和电气有限公司 | Automatic fume-extracting machine |
| CN108955951A (en) * | 2018-07-25 | 2018-12-07 | 奥克斯空调股份有限公司 | A kind of temperature sensor fault judgment method and device |
| CN110018275A (en) * | 2019-04-10 | 2019-07-16 | 南京能启能电子科技有限公司 | A kind of gas detector with compensation function and compensation method |
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Application publication date: 20210326 |