CN111722546A - Control method and control device of sensor and cooking equipment - Google Patents

Control method and control device of sensor and cooking equipment Download PDF

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Publication number
CN111722546A
CN111722546A CN202010614806.5A CN202010614806A CN111722546A CN 111722546 A CN111722546 A CN 111722546A CN 202010614806 A CN202010614806 A CN 202010614806A CN 111722546 A CN111722546 A CN 111722546A
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China
Prior art keywords
sensor
value
sampling value
background noise
sampling
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Granted
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CN202010614806.5A
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Chinese (zh)
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CN111722546B (en
Inventor
王灏
朱洁乐
吴俊文
陈立鹏
凌晓春
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Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
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Midea Group Co Ltd
Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
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Priority to CN202010614806.5A priority Critical patent/CN111722546B/en
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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
    • 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
    • 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
    • A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
    • 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
    • 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
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
    • A47J37/0629—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/6447—Method of operation or details of the microwave heating apparatus related to the use of detectors or sensors
    • 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
    • A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
    • A47J2027/043—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels for cooking food in steam

Abstract

The invention provides a control method and a control device of a sensor and cooking equipment, wherein the control method of the sensor comprises the following steps: responding to a selection instruction of a calibration background noise value, and acquiring a first sampling value of a sensor; determining a sampling value fluctuation interval according to a first sampling value of a sensor; periodically acquiring a second sampling value of the sensor; and adjusting the background noise value according to the comparison result of the duration of the second sampling value of the sensor in the sampling value fluctuation interval and the set duration. The fluctuation condition of the sampling value in the current scene is further determined by monitoring the sampling value in the current scene of the sensor, so that whether the background noise value is adjusted or not is determined according to the fluctuation condition of the sampling value.

Description

Control method and control device of sensor and cooking equipment
Technical Field
The invention relates to the technical field of kitchen appliances, in particular to a control method and a control device of a sensor and cooking equipment.
Background
Among the relevant technical scheme, infrared proximity sensor outwards sends infrared light, and this light can take place the reflection after meetting the barrier, and infrared proximity sensor receives the infrared light of reflection, turns into the numerical value that corresponds with the light intensity of infrared light to compare this numerical value with the settlement threshold value, and then trigger corresponding function.
Technical personnel in the field find that infrared proximity sensor is more sensitive to external interference in the use process, wherein, external interference includes but not limited to ambient light, can also be the structure of infrared sensor place environment, take kitchen appliance as an example, external interference includes kitchen structure, factors such as overall arrangement also can cause the interference, for example the size of kitchen is different, obstacles such as furniture or wall that lie in the opposite of kitchen appliance who uses infrared proximity sensor can influence infrared proximity sensor's use, cause the sensing distance uniformity relatively poor, can't satisfy current stage's user demand.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the present invention is to provide a control method of a sensor.
In a second aspect of the present invention, a control apparatus for a sensor is provided.
A third aspect of the present invention is to provide a cooking apparatus.
In view of the above, according to a first aspect of the present invention, there is provided a control method of a sensor, including: responding to a selection instruction of a calibration background noise value, and acquiring a first sampling value of a sensor; determining a sampling value fluctuation interval according to a first sampling value of a sensor; periodically acquiring a second sampling value of the sensor; and adjusting the background noise value according to the comparison result of the duration of the second sampling value of the sensor in the sampling value fluctuation interval and the set duration.
In the technical scheme of the invention, the control method of the sensor is provided, the fluctuation condition of the sampling value in the current scene is further determined by monitoring the sampling value in the current scene of the sensor, so that whether the background noise value is adjusted or not is determined according to the fluctuation condition of the sampling value, and the adjustment process of the background noise value completely depends on the sampling value in the current scene of the sensor. Therefore, interference of ambient noise to the sensing distance of the sensor is reduced, and consistency of the sensing distance is ensured.
Specifically, by limiting the parameter of the set time length, the interference of the sudden interference on the setting of the background noise value is reduced, and the reliability of the background noise value is improved.
In addition, according to the control method of the sensor in the above technical solution provided by the present invention, the following additional technical features may be further provided:
in the above technical solution, the step of adjusting the background noise value according to a comparison result between a duration of the second sampling value of the sensor in the sampling value fluctuation interval and a set duration specifically includes: determining that the duration is greater than or equal to a set duration, and taking the first sampling value as an updated background noise value; and determining that the duration is less than the set duration, and keeping the background noise value.
In the technical scheme, because an unstable interference source may exist in the current environment, the interference source may affect the adjustment of the background noise value, and the first sampling value is used as the updated background noise value by limiting the duration when the second sampling value of the sensor is detected to be in the sampling value fluctuation interval to be greater than or equal to the set duration, so as to reduce the influence of the sudden signal interference on the setting of the background noise value.
In any of the above technical solutions, before the step of determining the sampling value fluctuation interval according to the first sampling value of the sensor, the method further includes: a contrast relation between a first sampling value and a sampling value fluctuation interval is constructed in advance; the method comprises the following steps of determining a sampling value fluctuation interval according to a first sampling value of a sensor, and specifically comprises the following steps: and determining a sampling value fluctuation interval corresponding to the first sampling value according to the comparison relation.
In the technical scheme, the comparison relation between the first sampling value and the sampling value fluctuation interval is constructed in advance, so that the sampling value fluctuation interval corresponding to the first sampling value can be directly obtained according to the comparison relation after the first sampling value of the sensor is obtained.
In any of the above technical solutions, after the step of adjusting the background noise value according to the comparison result between the duration of the sampling value fluctuation interval of the second sampling value of the sensor and the set duration, the method further includes: acquiring a third sampling value of the sensor; determining that the difference value between a third sampling value of the sensor and the background noise value is greater than or equal to a trigger threshold value, and outputting an action signal; and determining that the difference value between the third sampling value of the sensor and the background noise value is smaller than a trigger threshold value, and stopping outputting the action signal.
In the technical scheme, after the background noise value of the sensor is set, the determined background noise value can be adjusted according to the comparison result of the duration of the second sampling value of the sensor in the sampling value fluctuation interval and the set duration to trigger the action, specifically, a third sampling value of the sensor is obtained to compare the third sampling value with the background noise value, and further, whether the action signal is output or not is determined. In the process, the background noise value is determined according to the current environment where the sensor is located, so that when the difference value between the third sampling value and the background noise value is compared with the trigger threshold value to determine whether the action signal is output or not, the sensor can be ensured not to be interfered by the environment in the triggering process, the consistency of the sensing distance is ensured, and the use requirements of users at the current stage are met.
In any of the above technical solutions, before the step of obtaining the third sample value of the sensor, the method further includes: responding to a setting instruction of a trigger threshold, and receiving a set value of a trigger distance; and determining a trigger threshold according to a set value of the trigger distance.
In the technical scheme, in a normal situation, the sensing distance of the sensor is subjected to solidified writing before the sensor leaves a factory or during a programming process for driving the sensor to act, so that the sensing distance of the sensor cannot be adjusted, and a set value of the trigger distance is received by responding to a set instruction of a trigger threshold value before the step of acquiring a third sampling value of the sensor; the trigger threshold is determined according to the set value of the trigger distance, and the determination authority of the sensing distance of the sensor is opened to the user, so that the user can set according to the actual scene requirement, and the use requirement of the sensor in the actual application scene is further met.
In any of the above technical solutions, before the step of acquiring the first sample value of the sensor in response to the selection instruction of the calibration background noise value, the method further includes: receiving a starting instruction of a proximity sensing function, and outputting first identification information of a calibration background noise value and second identification information of a default background noise value; based on receiving an input instruction for the first identification information, it is determined that a selection instruction for calibrating the background noise value is received.
In this technical solution, the first identification information of the calibration background noise value may be displayed when a start instruction of the proximity sensing function is received, for example, the first identification information of the calibration background noise value and the second identification information of the default background noise value are output, and a selection instruction of the calibration background noise value is determined to be received based on the received input instruction for the first identification information, so as to set the background noise value. It can be understood that the control logic for calibrating the background noise value is integrated into the existing control logic, wherein the existing control logic includes, for example, an operation interface whether the proximity sensing function is enabled, and then a developer does not need to separately develop an operation system for calibrating the background noise value, thereby reducing the development cost of the sensor.
According to a second aspect of the present invention, there is provided a control device of a sensor, comprising: a memory having a computer program stored thereon; a controller executing a computer program to implement the steps of the control method of the sensor as in any one of the above.
In the technical solution of the present invention, a control device of a sensor is provided, and specifically, the control device of a sensor includes a controller and a memory, where the controller executes a computer program to implement the steps of the control method of any one of the above sensors, and therefore, the control device of a sensor has all the beneficial technical effects of the control method of any one of the above sensors, and details are not repeated herein.
According to a third aspect of the present invention, there is provided a cooking apparatus comprising: the sensor, and the controlling means of sensor in above-mentioned technical scheme, wherein, the controlling means of sensor links with the sensor.
In this technical solution, a cooking apparatus is provided, wherein the cooking apparatus includes a sensor and a control device of the sensor as in the above technical solution, the control device of the sensor is connected with the sensor, and the cooking apparatus has the control device of the sensor, so that the cooking apparatus has all the beneficial technical effects of the control device of the sensor, and details are not repeated herein.
In the technical scheme, the sensor is arranged on a key of the cooking equipment or a panel of the cooking equipment.
In any of the above solutions, the sensor includes an infrared sensor.
In any of the above technical solutions, the cooking apparatus further includes: and the function device is connected with the control device of the sensor and is configured to determine that the action information is received and switch from the first state to the second state.
In this technical solution, the state switching of the functional device can be realized through the sensor, specifically, when the motion information is received, the functional device is switched from a first state to a second state, where the functional device may be a display device, and the first state and the second state may be backlight luminance conditions of the display device, for example, a luminance value of the display device in the first state is smaller than a luminance value in the second state, so as to wake up the display device.
The functional device may also be a lighting device, in a first state the lighting device is not operative, in a second state the lighting device is operative.
The functional device may also be a device for outputting and displaying the current operating parameters of the cooking apparatus, for example, in the first state, the functional device does not display the current operating parameters of the cooking apparatus, and in the second state, the functional device displays the current operating parameters of the cooking apparatus.
In the above technical solution, a cooking apparatus includes: any one of a microwave oven, an oven, a steam box, a micro-steaming oven, a steaming oven and a micro-oven.
In the description of the present invention, it should be noted that the "cooking device" mentioned in the present invention may include any cooking device capable of cooking food to which the technical solution of the present invention can be applied, including but not limited to a microwave oven, an oven, a steam box, a micro-steaming oven, a steaming oven and a micro-oven.
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 shows a schematic flow diagram of a method of controlling a sensor according to an embodiment of the invention;
FIG. 2 shows a schematic flow diagram of a method of controlling a sensor according to an embodiment of the invention;
FIG. 3 shows a schematic flow diagram of a method of controlling a sensor according to an embodiment of the invention;
FIG. 4 shows a schematic flow diagram of a method of controlling a sensor according to an embodiment of the invention;
fig. 5 is a schematic diagram showing the optical path of an infrared ray transmitted by an infrared transmitting device and reflected to an infrared receiving device after encountering a user under the condition of no interference;
fig. 6 is a schematic diagram showing the optical path of an infrared ray transmitted by an infrared transmitting device reflected to an infrared receiving device after encountering a user in the presence of interference;
FIG. 7 is a graph illustrating the variation of background noise values as interference increases or decreases according to one embodiment of the present invention;
FIG. 8 shows a schematic flow chart of a method of controlling a sensor according to an embodiment of the invention;
FIG. 9 shows a schematic block diagram of a control arrangement of a sensor according to an embodiment of the invention;
fig. 10 shows a schematic block diagram of a cooking apparatus according to an embodiment of the present invention;
fig. 11 shows a flowchart of a cooking apparatus setting process according to an embodiment of the present invention.
Detailed Description
So that the manner in which the above recited aspects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example one
In one embodiment of the present invention, as shown in fig. 1, the present invention provides a control method of a sensor, including:
102, responding to a selection instruction of a calibration background noise value, and acquiring a first sampling value of a sensor;
104, determining a sampling value fluctuation interval according to a first sampling value of a sensor;
step 106, periodically acquiring a second sampling value of the sensor;
and 108, adjusting the background noise value according to the comparison result of the duration of the second sampling value of the sensor in the sampling value fluctuation interval and the set duration.
In the embodiment of the invention, a control method of a sensor is provided, which determines the fluctuation condition of a sampling value in the current scene by monitoring the sampling value in the current scene of the sensor, so as to determine whether to adjust a background noise value according to the fluctuation condition of the sampling value, and the adjustment process of the background noise value completely depends on the sampling value in the current scene of the sensor. Therefore, interference of ambient noise to the sensing distance of the sensor is reduced, and consistency of the sensing distance is ensured.
Specifically, by limiting the parameter of the set time length, the interference of the sudden interference on the setting of the background noise value is reduced, and the reliability of the background noise value is improved.
In one embodiment, the sensor may be a light sensor, such as an infrared sensor, wherein the sampled values correspond to light intensity; the sensor may be a sound sensor, such as a sonar system applied on a ship, wherein the sampled value corresponds to the sound intensity.
In one embodiment of the present invention, as shown in fig. 2, a control method of a sensor includes:
step 202, responding to a selection instruction of a calibration background noise value, and acquiring a first sampling value of a sensor;
step 204, determining a sampling value fluctuation interval according to a first sampling value of a sensor;
step 206, periodically acquiring a second sampling value of the sensor;
step 208, determining that the duration is greater than or equal to the set duration, and taking the first sampling value as an updated background noise value; and determining that the duration is less than the set duration, and keeping the background noise value.
In this embodiment, since there may be an unstable interference source in the current environment, and the interference source may affect the adjustment of the background noise value, by defining the duration when the second sampling value of the sensor is detected to be in the sampling value fluctuation interval to be greater than or equal to the set duration, and taking the first sampling value as the updated background noise value, the influence of the sudden signal interference on the setting of the background noise value is reduced, and by the above-mentioned embodiment, the reliability of the background noise value is improved.
In one embodiment, the sensor may be a light sensor, such as an infrared sensor, wherein the sampled values correspond to light intensity; the sensor may be a sound sensor, such as a sonar system applied on a ship, wherein the sampled value corresponds to the sound intensity.
Example two
In one embodiment of the present invention, as shown in fig. 3, the present invention provides a control method of a sensor, including:
step 302, a comparison relation between a first sampling value and a sampling value fluctuation interval is constructed in advance;
step 304, responding to a selection instruction of a calibration background noise value, and acquiring a first sampling value of a sensor;
step 306, determining a sampling value fluctuation interval corresponding to the first sampling value according to the comparison relation;
step 308, periodically acquiring a second sampling value of the sensor;
and 310, adjusting the background noise value according to the comparison result of the duration of the second sampling value of the sensor in the sampling value fluctuation interval and the set duration.
In the embodiment, the comparison relation between the first sampling value and the sampling value fluctuation interval is constructed in advance, so that the sampling value fluctuation interval corresponding to the first sampling value can be directly obtained according to the comparison relation after the first sampling value of the sensor is obtained.
In one embodiment, the sensor may be a light sensor, such as an infrared sensor, wherein the sampled values correspond to light intensity; the sensor may be a sound sensor, such as a sonar system applied on a ship, wherein the sampled value corresponds to the sound intensity.
In one embodiment of the present invention, as shown in fig. 4, the present invention provides a control method of a sensor, including:
step 402, responding to a selection instruction of a calibration background noise value, and acquiring a first sampling value of a sensor;
step 404, determining a sampling value fluctuation interval according to a first sampling value of a sensor;
step 406, periodically acquiring a second sampling value of the sensor;
step 408, adjusting a background noise value according to a comparison result of the duration of the second sampling value of the sensor in the sampling value fluctuation interval and the set duration;
step 410, acquiring a third sampling value of the sensor;
step 412, determining that the difference value between the third sampling value of the sensor and the background noise value is greater than or equal to a trigger threshold value, and outputting an action signal; and determining that the difference value between the third sampling value of the sensor and the background noise value is smaller than a trigger threshold value, and stopping outputting the action signal.
In this embodiment, after the background noise value of the sensor is set, the determined background noise value may be adjusted to perform action triggering according to a comparison result between a duration of the second sampling value of the sensor in the sampling value fluctuation interval and the set duration, specifically, a third sampling value of the sensor is obtained, so that the third sampling value is compared with the background noise value, and whether to output an action signal is determined. In the process, the background noise value is determined according to the current environment where the sensor is located, so that when the difference value between the third sampling value and the background noise value is compared with the trigger threshold value to determine whether the action signal is output or not, the sensor can be ensured not to be interfered by the environment in the triggering process, the consistency of the sensing distance is ensured, and the use requirements of users at the current stage are met.
In one embodiment, the sensor may be a light sensor, such as an infrared sensor, wherein the sampled values correspond to light intensity; the sensor may be a sound sensor, such as a sonar system applied on a ship, wherein the sampled value corresponds to the sound intensity.
In an embodiment of the present invention, the sensor is exemplified by an infrared sensor, wherein the infrared sensor includes an infrared transmitting device and an infrared receiving device, and specifically, as shown in fig. 5, fig. 6 and fig. 7, where fig. 5 shows a schematic optical path diagram of an infrared light transmitted by the infrared transmitting device after encountering a user and reflected to the infrared receiving device under a condition of no interference, fig. 6 shows a schematic optical path diagram of an infrared light transmitted by the infrared transmitting device after encountering a user and reflected to the infrared receiving device under a condition of interference, based on the contents of fig. 5 and fig. 6, the infrared receiving device only needs to receive a small portion of light transmitted by the infrared transmitting device to trigger, i.e., perform an action, due to interference of environmental factors, and the above condition may cause a sensing distance of the sensor to become short.
After the embodiment of the application is adopted, the background noise value S of the infrared sensor can be dynamically changed according to the environmental interference, specifically, the background noise value S can be continuously increased along with the increase of the interference, the process of the reduction of the interference is continuously reduced, and the trigger threshold value can not be changed due to the change of the background noise value S, so that the induction distance can not be inconsistent due to the interference of the environmental factors in the using process of the sensor.
Wherein the background noise value is adjusted by limiting the comparison result of the duration of the fluctuation interval of the sampling value of the second sampling value of the sensor with the set duration deltaS.
In one embodiment, the first, second and third samples of the sensor may be digital signals corresponding to the received light intensity signal or converted from the light intensity signal.
EXAMPLE III
In one embodiment of the present invention, as shown in fig. 8, the present invention provides a control method of a sensor, including:
step 802, responding to a selection instruction of a calibration background noise value, and acquiring a first sampling value of a sensor;
step 804, determining a sampling value fluctuation interval according to a first sampling value of a sensor;
step 806, periodically acquiring a second sampling value of the sensor;
808, adjusting a background noise value according to a comparison result of the duration of the second sampling value of the sensor in the sampling value fluctuation interval and the set duration;
step 810, responding to a setting instruction of a trigger threshold, and receiving a set value of a trigger distance;
step 812, determining a trigger threshold according to a set value of the trigger distance;
step 814, acquiring a third sampling value of the sensor;
step 816, determining that the difference value between the third sampling value of the sensor and the background noise value is greater than or equal to a trigger threshold value, and outputting an action signal; and determining that the difference value between the third sampling value of the sensor and the background noise value is smaller than a trigger threshold value, and stopping outputting the action signal.
In this embodiment, in a normal case, the sensing distance of the sensor is subjected to solid writing before shipping or during a programming process for driving the sensor to operate, and therefore, the sensing distance of the sensor cannot be adjusted, and a set value of the trigger distance is received in response to a setting instruction of the trigger threshold before the step of obtaining the third sampling value of the sensor; the trigger threshold is determined according to the set value of the trigger distance, and the determination authority of the sensing distance of the sensor is opened to the user, so that the user can set according to the actual scene requirement, and the use requirement of the sensor in the actual application scene is further met.
In one embodiment, the sensor may be a light sensor, such as an infrared sensor, wherein the sampled values correspond to light intensity; the sensor may be a sound sensor, such as a sonar system applied on a ship, wherein the sampled value corresponds to the sound intensity.
In any of the above embodiments, before the step of acquiring the first sample value of the sensor in response to the selection instruction of the calibration background noise value, the method further includes: receiving a starting instruction of a proximity sensing function, and outputting first identification information of a calibration background noise value and second identification information of a default background noise value; based on receiving an input instruction for the first identification information, it is determined that a selection instruction for calibrating the background noise value is received.
In this embodiment, the first identification information of the calibration background noise value may be displayed when receiving a start instruction of the proximity sensing function, for example, the first identification information of the calibration background noise value and the second identification information of the default background noise value are output, and based on receiving an input instruction for the first identification information, a selection instruction of receiving the calibration background noise value is determined so as to set the background noise value. It can be understood that the control logic for calibrating the background noise value is integrated into the existing control logic, wherein the existing control logic includes, for example, an operation interface whether the proximity sensing function is enabled, and then a developer does not need to separately develop an operation system for calibrating the background noise value, thereby reducing the development cost of the sensor.
In any of the above embodiments, the interference of the environmental factors may be a wall or a device that is fixedly installed, and based on the example that the sensor is installed in the kitchen, the interference of the environmental factors may be other cooking devices (such as a stove) or electric devices (such as an electric oven).
In any of the above embodiments, the set time period may be set by a user, may be set when the device leaves a factory, or may be an empirical value, such as 10 seconds.
Example four
In one embodiment of the present invention, as shown in fig. 9, there is provided a control apparatus 900 of a sensor, including: a memory 902, the memory 902 having a computer program stored thereon; a controller 904, the controller 904 executing a computer program to implement the steps of the method of controlling a sensor as in any one of the above.
In an embodiment of the present invention, a control apparatus 900 for a sensor is provided, and specifically, the control apparatus 900 for a sensor includes a controller 904 and a memory 902, where the controller 904 executes a computer program to implement the steps of the control method for a sensor according to any one of the above descriptions, and therefore, the control apparatus 900 for a sensor has all the beneficial technical effects of the control method for a sensor according to any one of the above descriptions, and therefore, the description is omitted here.
EXAMPLE five
In one embodiment of the present invention, as shown in fig. 10, there is provided a cooking apparatus 1000 including: a sensor 1002, and a control device 900 for a sensor as in the previous embodiments, wherein the control device 900 for a sensor is connected to the sensor 1002.
In this embodiment, a cooking apparatus 1000 is provided, wherein the cooking apparatus 1000 includes a sensor 1002 and a control device 900 of the sensor as in the above embodiments, the control device 900 of the sensor is connected to the sensor 1002, and since the cooking apparatus 1000 has the control device 900 of the sensor, the cooking apparatus 1000 has all the beneficial technical effects of the control device 900 of the sensor, and thus, the description thereof is omitted.
In one embodiment, the sensors 1002 are disposed on the keys of the cooking apparatus 1000.
In one embodiment, the sensor 1002 is disposed on a panel of the cooking apparatus 1000.
In any of the embodiments described above, the sensor 1002 comprises an infrared sensor.
In any of the above embodiments, the cooking apparatus 1000 further comprises: and a function device 1004, the function device 1004 being connected to the control device of the sensor, the function device 1004 being configured to determine that the motion information is received, and to switch from the first state to the second state.
In this embodiment, the state of the functional device 1004 can be switched by the sensor 1002, specifically, when the motion information is received, the functional device 1004 is switched from a first state to a second state, where the functional device 1004 can be a display device, and the first state and the second state can be backlight brightness conditions of the display device, for example, a brightness value of the display device in the first state is smaller than a brightness value in the second state, thereby waking up the display device.
The functional device 1004 may also be a lighting device that is not active in a first state and is active in a second state.
Here, the function device 1004 may also be a device for outputting and displaying the current operating parameters of the cooking apparatus 1000, such as in a first state, the function device 1004 does not display the current operating parameters of the cooking apparatus 1000, and in a second state, the function device 1004 displays the current operating parameters of the cooking apparatus 1000.
Wherein, cooking apparatus 1000 includes: any one of a microwave oven, an oven, a steam box, a micro-steaming oven, a steaming oven and a micro-oven.
In one embodiment, the setting process in the cooking apparatus 1000 is as shown in fig. 11, specifically, the user may autonomously select the "proximity sensing function" to be turned on or off, after the "proximity sensing function" is selected to be turned on, there are options of "default" and "calibration", when the "default" is selected, a software default sensing distance is executed, and when the "calibration" is selected, an adaptive process is executed for 10 s.
In the description of the present invention, it should be noted that the "cooking apparatus 1000" mentioned in the present invention may include any cooking apparatus 1000 capable of cooking food to which the embodiments of the present invention can be applied, including but not limited to a microwave oven, an oven, a steam box, a micro-steaming oven, a steaming oven and a micro-oven.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (11)

1. A method of controlling a sensor, comprising:
responding to a selection instruction of a calibration background noise value, and acquiring a first sampling value of the sensor;
determining a sampling value fluctuation interval according to a first sampling value of the sensor;
periodically acquiring a second sampling value of the sensor;
and adjusting the background noise value according to the comparison result of the duration of the second sampling value of the sensor in the sampling value fluctuation interval and the set duration.
2. The method according to claim 1, wherein the step of adjusting the background noise value according to the comparison result between the duration of the fluctuation interval of the sampling value and the set duration of the second sampling value of the sensor specifically comprises:
determining that the duration is greater than or equal to the set duration, and taking the first sampling value as the updated background noise value;
and determining that the duration is less than the set duration, and keeping the background noise value.
3. The method of claim 1, further comprising, prior to the step of determining a sample value fluctuation interval based on the first sample value of the sensor:
a contrast relation between a first sampling value and a sampling value fluctuation interval is constructed in advance;
the step of determining a sampling value fluctuation interval according to the first sampling value of the sensor specifically includes:
and determining the sampling value fluctuation interval corresponding to the first sampling value according to the comparison relation.
4. The method as claimed in any one of claims 1 to 3, wherein the step of adjusting the background noise value according to the comparison result of the duration of the sampling value fluctuation interval and the set duration of the second sampling value of the sensor, further comprises:
acquiring a third sampling value of the sensor;
determining that the difference value between a third sampling value of the sensor and the background noise value is greater than or equal to a trigger threshold value, and outputting an action signal;
and determining that the difference value between the third sampling value of the sensor and the background noise value is smaller than a trigger threshold value, and stopping outputting the action signal.
5. The method of claim 4, further comprising, prior to the step of obtaining a third sample value of the sensor:
responding to a setting instruction of the trigger threshold, and receiving a set value of the trigger distance;
and determining the trigger threshold according to the set value of the trigger distance.
6. The method of controlling a sensor according to any one of claims 1 to 3, further comprising, before the step of obtaining a first sample value of the sensor in response to a selection command of a calibration background noise value:
receiving a starting instruction of a proximity sensing function, and outputting first identification information of a calibration background noise value and second identification information of a default background noise value;
determining that a selection instruction of the calibration background noise value is received based on receiving an input instruction for the first identification information.
7. A control device for a sensor, comprising:
a memory having a computer program stored thereon;
a controller executing the computer program to implement the steps of the control method of the sensor according to any one of claims 1 to 6.
8. A cooking apparatus, characterized by comprising:
a sensor;
the control device of a sensor according to claim 7, wherein the control device of a sensor is connected to the sensor.
9. The cooking apparatus of claim 8, wherein the sensor is disposed on a key of the cooking apparatus or a panel of the cooking apparatus.
10. Cooking apparatus according to claim 8,
the sensor comprises an infrared sensor;
the cooking apparatus further includes: a function device connected with the control device of the sensor, the function device configured to determine that motion information is received, and switch from a first state to a second state.
11. The cooking apparatus according to any one of claims 8 to 10, wherein the cooking apparatus comprises: any one of a microwave oven, an oven, a steam box, a micro-steaming oven, a steaming oven and a micro-oven.
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