Dry burning prevention control method, range hood and storage medium

Abstract

The invention discloses an anti-dry-burning control method, a range hood and a storage medium, and relates to the technical field of range hood control, and the anti-dry-burning control method comprises the following steps: based on the range hood, monitoring the change condition of the temperature in a corresponding cooking area in a non-contact manner; and based on the change condition of the temperature, whether a cooker in the cooking area is in a preset dry burning scene is judged, and if yes, a corresponding anti-dry burning control strategy is controlled to be executed. According to the application, the limitation of the type of the kitchen range is avoided, too high cost is avoided, and the requirement of actual dry burning prevention application can be met.

Description

Technical Field

[0001] This application relates to the field of range hood control technology, and in particular to an anti-dry-burning control method, a range hood, and a storage medium. Background Technology

[0002] In current technology, the anti-dry-burning function is mainly installed at the cooktop end, and the anti-dry-burning function at the cooktop end generally uses a protruding temperature probe to directly contact the cooktop to obtain the cooktop temperature. This contact detection is costly and limited by the shape and type of cooktop, making it difficult to meet the needs of practical applications. Summary of the Invention

[0003] The main purpose of this application is to provide a method for preventing dry burning, a range hood, and a storage medium, addressing the technical problem that current technologies using contact detection of stove temperature are insufficient to meet the actual needs of preventing dry burning applications.

[0004] To achieve the above objectives, this application proposes an anti-dry-burning control method, which includes: Based on the range hood, non-contact monitoring is used to monitor temperature changes in the corresponding cooking area. Based on the temperature changes, it is determined whether the stove in the cooking area is in a preset dry-burning scenario. If so, the corresponding anti-dry-burning control strategy is executed.

[0005] In one embodiment, the step of non-contact monitoring of temperature changes within the corresponding cooking area based on a range hood includes: Based on the range hood, the temperature change in the corresponding cooking area is monitored non-contactly. The range hood may be linked or not linked with the cooktop, and the cooktop can be any type of cooktop.

[0006] In one embodiment, the step of non-contact monitoring of temperature changes within the corresponding cooking area based on a range hood includes: Based on the sensors installed on the range hood, raw data in the corresponding window within the corresponding cooking area is continuously acquired; Based on the original data, the temperature change within the corresponding window is determined. The temperature change includes one or more of the following: peak temperature difference, window temperature difference, and window slope. The peak temperature difference is the difference between the highest and lowest temperature data within the corresponding window. The window temperature difference is the temperature difference between the first and last temperature data within the corresponding window. The window slope is used to characterize the rate of temperature change within the corresponding window.

[0007] In one embodiment, the step of determining the temperature change within the corresponding window based on the original data includes: The original data is then filtered. Based on the filtered raw data, the temperature change within the corresponding window is determined.

[0008] In one embodiment, the preset dry-burning scenario includes an abnormal fire scenario, an abnormal overheating scenario, or a steady-state dry-burning scenario.

[0009] In one embodiment, the step of determining whether the stove in the cooking area is in a preset dry-burning scenario based on the temperature change includes any one of the following: The step of determining whether the stove in the cooking area is in a preset dry-burning scenario based on the temperature change includes any one of the following: Based on the temperature change, determine whether the fire scene conditions are met, so as to determine whether the stove in the cooking area is in an abnormal fire scene. The fire scene conditions include the window temperature difference being greater than or equal to a first preset temperature threshold, or the current temperature being greater than the sum of the cooking start temperature and the preset maximum normal cooking total temperature of all stoves and being maintained for a first preset time period. Based on the temperature changes, it is determined whether the abnormal overheating scenario conditions are met, so as to determine whether the stove in the cooking area is in an abnormal overheating scenario. The abnormal overheating scenario conditions include the current temperature being greater than the sum of the cooking start temperature, the maximum preset normal cooking total temperature of all stoves, and the second preset temperature threshold, and being maintained for a second preset time period. Based on the temperature changes, it is determined whether the steady-state dry-burning scenario conditions are met, so as to determine whether the stove in the cooking area is in a steady-state dry-burning scenario. The steady-state dry-burning scenario conditions include that the temperature changes meet the preset steady-state conditions and the preset over-temperature conditions. The preset over-temperature conditions include that the current temperature is greater than the sum of the cooking start temperature, the preset steady-state temperature of all stoves for boiling water, and the third preset temperature threshold, and is maintained for a fourth preset time period.

[0010] In one embodiment, the preset steady-state condition satisfies the following requirements: The window slope is less than or equal to a preset slope threshold; The temperature peak difference is less than or equal to the fourth preset temperature threshold. The window temperature difference is less than or equal to the fifth preset temperature threshold. The current temperature is greater than the sum of the cooking start temperature and the total preset steady-state temperature of all stoves for boiling water, and it continues to maintain this temperature for the third preset time period.

[0011] In one embodiment, the step of controlling the execution of the corresponding anti-dry-burning control strategy if the condition is met includes one or more of the following: If it is in the state, output the corresponding dry burning warning signal; If it is in the state of dry burning, output the corresponding dry burning type; If it is in the specified state, and if it is linked with the stove, then the corresponding turn-off command will be output.

[0012] In addition, to achieve the above objectives, this application also proposes a cooktop, the cooktop comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the anti-dry-burning control steps as described above.

[0013] In addition, to achieve the above objectives, this application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, it implements the anti-dry-burning control steps as described above.

[0014] In addition, to achieve the above objectives, this application also provides a computer program product, which includes a computer program that, when executed by a processor, implements the anti-dry-burning control steps as described above.

[0015] One or more technical solutions proposed in this application have at least the following technical effects: Compared to related technologies that use protruding temperature probes to directly contact the cooktop for temperature detection, which is costly and limited, making it difficult to meet practical application needs, this application uses a range hood to non-contactly monitor temperature changes within the corresponding cooking area. Based on these temperature changes, it determines whether the cooktop is in a preset dry-burning scenario. If so, it controls and executes a corresponding anti-dry-burning control strategy. It's understood that this application does not use protruding temperature probes for contact detection to determine if the cooktop is in a dry-burning scenario. Instead, it uses a range hood to non-contactly monitor temperature changes within the corresponding cooking area, and then determines whether the cooktop is in a preset dry-burning scenario based on the non-contact temperature changes, before implementing a targeted anti-dry-burning control strategy. This avoids the increased cost associated with using protruding temperature probes, and since a range hood can non-contactly monitor temperature changes within the cooking area, it does not have type restrictions on the cooktop, thus avoiding cooktop type limitations and meeting the needs of practical anti-dry-burning applications. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the first process of the anti-dry-burning control method of this application; Figure 2 This is a schematic diagram of the control flow provided in Embodiment 1 of the cooking control method of this application; Figure 3 This is a comparative schematic diagram of the dry-burning prevention control method of this application and the ordinary dry-burning prevention control method; Figure 4 This is a schematic diagram of the second process provided in Embodiment 1 of the anti-dry-burning control method of this application; Figure 5 This is a schematic diagram of the equipment structure of the hardware operating environment involved in the range hood anti-dry burning control method in the embodiments of this application.

[0019] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0021] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0022] In current technology, the anti-dry-burning function is mainly installed at the cooktop end, and the anti-dry-burning function at the cooktop end generally uses a protruding temperature probe to directly contact the cooktop to obtain the cooktop temperature. This contact detection is costly and limited by the shape and type of cooktop, making it difficult to meet the needs of practical applications.

[0023] Compared to related technologies that use protruding temperature probes to directly contact the cooktop for temperature detection, which is costly and limited, making it difficult to meet practical application needs, this application uses a range hood to non-contactly monitor temperature changes within the corresponding cooking area. Based on these temperature changes, it determines whether the cooktop is in a preset dry-burning scenario. If so, it controls and executes a corresponding anti-dry-burning control strategy. It's understood that this application does not use protruding temperature probes for contact detection to determine if the cooktop is in a dry-burning scenario. Instead, it uses a range hood to non-contactly monitor temperature changes within the corresponding cooking area, and then determines whether the cooktop is in a preset dry-burning scenario based on the non-contact temperature changes, before implementing a targeted anti-dry-burning control strategy. This avoids the increased cost associated with using protruding temperature probes, and since a range hood can non-contactly monitor temperature changes within the cooking area, it does not have type restrictions on the cooktop, thus avoiding cooktop type limitations and meeting the needs of practical anti-dry-burning applications.

[0024] Reference Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the anti-dry-burning control method of this application.

[0025] It should be noted that the executing entity of the anti-dry-burning control method can be an electronic device, such as a range hood, or a mobile phone, computer, tablet, smartwatch, or stove that is connected to the range hood. This embodiment does not limit this; for ease of description, the executing entity is omitted from the description of each embodiment below. The anti-dry-burning control method includes: In this embodiment, the anti-dry-burning control includes steps S10~S20: Step S10: Based on the range hood, non-contact monitoring of temperature changes in the corresponding cooking area; It should be noted that the execution subject in this embodiment is the anti-dry-burning control device. The anti-dry-burning control device can be installed inside the range hood (the control center inside the range hood), or it can be installed in an electronic device that is communicatively connected to the range hood. When the anti-dry-burning control device is installed in the range hood, the corresponding anti-dry-burning control strategy can be executed through the range hood. When the anti-dry-burning control device is installed in the electronic device, anti-dry-burning control can be performed on the electronic device.

[0026] The following explanation uses the example of an anti-dry-burning control device installed inside a range hood.

[0027] In this embodiment, it should be noted that the range hood can be of various types, such as flat panel, semi-deep, deep, and cabinet, and there is no specific limitation.

[0028] In this embodiment, it should be noted that the monitoring range of the range hood covers the area directly below the range hood. That is, the monitoring range of the range hood can specifically cover the entire cooking area of ​​the kitchen or the entire cooking stove area, and not just the area under the pot when cooking.

[0029] In other words, in this embodiment, the monitoring range of the range hood (the corresponding cooking area being monitored) is significantly larger than the cooking area inside the stove.

[0030] In this embodiment, it should be noted that various types of sensors are installed inside the range hood, including infrared sensors or temperature sensors. It should be noted that when a temperature sensor is installed inside the range hood, its cost is lower than that of a protruding temperature probe on a cooktop (which has lower requirements for setup and temperature).

[0031] In this embodiment, based on the range hood, non-contact monitoring of temperature changes within the corresponding cooking area specifically includes: Based on the temperature sensor in the range hood, the temperature changes in the corresponding cooking area are monitored non-contactly.

[0032] Using infrared sensors in the range hood, temperature changes in the corresponding cooking area can be monitored non-contactly.

[0033] In this embodiment, an infrared sensor is used as an example of a sensor installed inside the range hood for specific explanation.

[0034] In this embodiment, it should be noted that the infrared sensor is installed on the main body of the range hood.

[0035] In this embodiment, it should be noted that the infrared sensor in the range hood monitors the temperature of the corresponding cooking area at regular intervals or continuously, rather than monitoring the temperature of the corresponding cooking area only after the range hood is turned on.

[0036] It is understandable that when the range hood is not turned on, the infrared sensor in the range hood collects temperature data at a lower frequency than when the range hood is turned on (to avoid wasting too many resources).

[0037] In this embodiment, since the infrared sensor can monitor the temperature in the corresponding cooking area at regular intervals, it can obtain the temperature change in the corresponding cooking area.

[0038] In this embodiment, the temperature change in the corresponding cooking area may include the temperature change before and after cooking, or the temperature change at different stages after cooking, and is not specifically limited.

[0039] In this embodiment, the temperature change includes a temperature change curve or a temperature change trend, etc., and is not specifically limited.

[0040] The method of non-contact monitoring of temperature changes within the cooking area based on a range hood includes the following steps: Step S11: Based on the range hood, non-contact monitoring is performed on the temperature changes in the corresponding cooking area, wherein the range hood is linked or not linked with the stove, and the stove can be any type of stove.

[0041] In this embodiment, it should be noted that the stove can be any type and shape of stove. For example, the stove can be a flat-bottomed stove or a round-bottomed stove. Alternatively, the stove can be a cooking device powered by electromagnetic energy or a cooking device powered by gas. No specific limitation is made.

[0042] In this embodiment, the range hood and the stove can be linked or not linked. When the range hood and the stove are linked, the stove can be controlled through the range hood, or the range hood can be controlled through the stove. When the range hood and the stove are not linked, they do not communicate with each other or control each other.

[0043] It is understood that in this embodiment, based on the range hood, the non-contact monitoring of temperature changes in the corresponding cooking area is used to monitor the temperature changes in the cooking area, rather than the temperature changes of the bottom of the stove or pot.

[0044] The step of non-contact monitoring of temperature changes in the corresponding cooking area based on the range hood includes: Step S211: Based on the sensor installed on the range hood, continuously acquire the raw data in the corresponding window within the corresponding cooking area; Step S212: Based on the original data, determine the temperature change within the corresponding window. The temperature change includes one or more of the following: peak temperature difference, window temperature difference, and window slope. The peak temperature difference is the difference between the highest and lowest temperature data within the corresponding window. The window temperature difference is the temperature difference between the first and last temperature data within the corresponding window. The window slope is used to characterize the rate of temperature change within the corresponding window.

[0045] In this embodiment, the infrared sensor continuously acquires the raw data within the corresponding window in the corresponding cooking area.

[0046] In this embodiment, the original data in the corresponding window can be the original data in a preset number of data windows or the original data in a preset time window, and there is no specific limitation.

[0047] In this embodiment, if the original data in the corresponding window is the original data in the time window, the size of the time window can be 20 seconds. Specifically, one data point can be acquired every 4ms, and thus, 300 data points can be acquired within one time window.

[0048] In this embodiment, if the original data in the corresponding window is the original data in a preset number of data windows, the size of the preset number of data windows can be in the range of 100 to 150. Specifically, the preset number of data windows can be 140 data points.

[0049] That is, the infrared sensor continuously acquires 140 data points in the corresponding cooking area. Then, after acquiring 140 data points, the temperature change in the corresponding window is determined based on the original data. The acquisition interval between different data points can be 6ms.

[0050] In this embodiment, the 140 data points continuously acquired by the infrared sensor in the corresponding cooking area can all be data before the range hood is started, or all of them can be data after the range hood is started, or some of the 140 data points can be acquired before the range hood is started and some can be acquired after the range hood is started.

[0051] In this embodiment, it should be noted that when determining the temperature change within the corresponding window, different preset number data windows may have overlapping parts (e.g., the infrared sensor continuously acquires data from the 1st to the 140th data points within the corresponding cooking area, and these data points are the data within the corresponding first preset number data window; then the infrared sensor continuously acquires data from the 120th to the 260th data points within the corresponding cooking area, and these data points are the data within the corresponding second preset number data window; and the data within the first preset number data window and the data within the second preset number data window overlap, i.e., data points from the 120th to the 140th overlap), or they may not have overlapping parts, depending on the settings.

[0052] In this embodiment, the corresponding windows before and after the range hood is started may have overlapping parts, so as to facilitate timely determination of temperature changes.

[0053] In this embodiment, after obtaining the raw data, the collected raw data undergoes preprocessing and analysis, such as... Figure 2As shown, data preprocessing includes outlier removal or data structuring, filtering, etc., without specific limitations. Then, the temperature changes within the corresponding window are obtained. These temperature changes include one or more of the following: peak temperature difference (PeakDiff), window temperature difference (RangeDiff), and window slope. The peak temperature difference is the difference between the highest and lowest temperature data within the corresponding window (e.g., in a preset number of data windows with 140 data points, if the 30th data point has the highest temperature and the 59th data point has the lowest temperature, then the peak temperature difference is the temperature of the 30th data point minus the temperature of the 59th data point). The temperature difference of the window is the temperature difference between the first and last temperature data points in the corresponding window (e.g., the temperature of the 140th data point minus the temperature of the first data point in a preset number of data points window of 140 data points). The window slope is used to characterize the rate of temperature change within the corresponding window (e.g., the slope slop within t seconds, where t ranges from 10 to 40, or the slope slop within a preset number of data points window of 140 or other data points, without specific limitation). In this embodiment, there is a correlation between the corresponding window slope and the corresponding window.

[0054] The step of determining the temperature change within the corresponding window based on the original data includes: Step A1: Filter the raw data; Step A2: Based on the filtered original data, determine the temperature change within the corresponding window.

[0055] In this embodiment, after obtaining the original data, in order to reduce data noise, the original data is also filtered. Specifically, the original data is subjected to mean filtering or other filtering methods to obtain filtered data, and the temperature change within the corresponding window is determined based on the filtered original data.

[0056] Step S20: Based on the temperature change, determine whether the stove in the cooking area is in a preset dry-burning scenario. If it is, control the execution of the corresponding anti-dry-burning control strategy.

[0057] In this embodiment, after obtaining the temperature change information, it can be determined whether the stove in the cooking area is in a (preset) dry-burning scenario based on the temperature change information, such as... Figure 2 As shown, the preset dry-burning scenarios include abnormal fire scenarios, abnormal overheating scenarios, or steady-state dry-burning scenarios.

[0058] In this embodiment, as an example, if the temperature change exceeds a preset ignition temperature threshold, the stove is determined to be in an abnormal ignition scenario.

[0059] Alternatively, in this embodiment, as an example, if the temperature change exceeds the abnormal over-temperature threshold, the stove is determined to be in an abnormal over-temperature scenario.

[0060] Alternatively, in this embodiment, as an example, if the temperature change is greater than the sum of the initial temperature and the boiling water temperature, the stove is determined to be in a steady-state dry-burning scenario.

[0061] In this embodiment, if it is determined that the stove in the cooking area is not in a preset dry-burning scenario, no intervention measures will be performed.

[0062] If the cooktop in the cooking area is determined to be in a preset dry-burning scenario, the corresponding anti-dry-burning control strategy will be executed. This corresponding anti-dry-burning control strategy can be preset within the range hood.

[0063] Alternatively, in this embodiment, if it is determined that the stove in the cooking area is in a preset dry-burning scenario, and if the range hood and the stove are linked, then the corresponding anti-dry-burning control strategy can be preset in the stove. No specific limitations are imposed.

[0064] In addition, in this embodiment, if the range hood and the cooktop are linked, the corresponding anti-dry-burning control strategy can also be implemented by controlling the cooktop through the range hood.

[0065] In this embodiment, if the anti-dry-burning control device is installed in the electronic device, the range hood can be controlled by the electronic device, and the stove can be controlled by the range hood, thereby executing the corresponding anti-dry-burning control strategy. Alternatively, the stove can be directly controlled by the electronic device to execute the corresponding anti-dry-burning control strategy. No specific limitation is made.

[0066] Compared to related technologies that use protruding temperature probes to directly contact the cooktop for temperature detection, which is costly and limited, making it difficult to meet practical application needs, this application uses a range hood to non-contactly monitor temperature changes within the corresponding cooking area. Based on these temperature changes, it determines whether the cooktop is in a preset dry-burning scenario. If so, it controls and executes a corresponding anti-dry-burning control strategy. It's understood that this application does not use protruding temperature probes for contact detection to determine if the cooktop is in a dry-burning scenario. Instead, it uses a range hood to non-contactly monitor temperature changes within the corresponding cooking area, and then determines whether the cooktop is in a preset dry-burning scenario based on the non-contact temperature changes, before implementing a targeted anti-dry-burning control strategy. This avoids the increased cost associated with using protruding temperature probes, and since a range hood can non-contactly monitor temperature changes within the cooking area, it does not have type restrictions on the cooktop, thus avoiding cooktop type limitations and meeting the needs of practical anti-dry-burning applications.

[0067] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in the first embodiment described above can be referred to the above description, and will not be repeated hereafter. On this basis, refer to Figure 4 The step of determining whether the stove in the cooking area is in a preset dry-burning scenario based on the temperature change includes any one of the following: Step B1: Based on the temperature change, determine whether the fire scene conditions are met, so as to determine whether the stove in the cooking area is in an abnormal fire scene. The fire scene conditions include the window temperature difference being greater than or equal to a first preset temperature threshold, or the current temperature being greater than the sum of the cooking start temperature and the preset maximum normal cooking total temperature of all stoves and being maintained for a first preset time period. In this embodiment, temperature changes can be input into a preset scene recognition model, and the corresponding scene judgment result can be output.

[0068] In this embodiment, refer to Figure 3 Based on the temperature changes, it is determined whether the conditions for a fire scenario are met, so as to determine whether the stove in the cooking area is in an abnormal fire scenario.

[0069] In this embodiment, if the window temperature difference RangeDiff (the temperature difference between the first and last temperature data corresponding to the window) is greater than or equal to the first preset temperature threshold Q1, then it is determined that the stove in the cooking area is in an abnormal fire scenario.

[0070] It is understandable that if the temperature suddenly increases dramatically within a certain window, the stove is in an abnormal fire state.

[0071] Alternatively, in this embodiment, if the current temperature obtained by the infrared sensor is greater than the sum of the cooking start temperature StartT and the maximum normal cooking temperature of the stove (the total maximum normal cooking temperature preset for all stoves) total_N_C_T, and remains at the first preset time period (for a period of time T1), then it is determined that the stove in the cooking area is in an abnormal fire scenario.

[0072] Step B2: Based on the temperature change, determine whether the abnormal overheating scenario conditions are met, so as to determine whether the stove in the cooking area is in an abnormal overheating scenario. The abnormal overheating scenario conditions include the current temperature being greater than the sum of the cooking start temperature, the maximum preset normal cooking total temperature of all stoves and the second preset temperature threshold, and maintaining this temperature for a second preset time period. In this embodiment, refer to Figure 3Based on the temperature changes, it is determined whether the abnormal overheating scenario conditions are met, so as to determine whether the stove in the cooking area is in an abnormal overheating scenario. Specifically, if the original temperature data (current temperature) obtained by the infrared sensor is greater than or equal to (cooking start temperature StartT + maximum normal cooking total temperature of all stoves total_N_C_T + temperature difference threshold Q2 (second preset temperature threshold)) and is maintained for a second preset time period, then it is determined that the stove in the cooking area is in an abnormal overheating (high temperature) scenario.

[0073] In this embodiment, it can be understood that if the temperature in the cooking area is higher than the cooking start temperature, the maximum normal cooking total temperature of all stoves plus the second preset temperature threshold Q2, and continues for a second preset time period (for a period of time T2), then it is obviously in an abnormal overheating (high temperature) scenario.

[0074] It is understandable that if a user is cooking on a stove, and the current temperature obtained by the infrared sensor is greater than the cooking start temperature + the stove's maximum normal cooking temperature + the set second preset temperature threshold Q2, and this temperature remains for a period of T2, then the user is currently in an abnormal overheating (high temperature) scenario.

[0075] Step B3: Based on the temperature change, determine whether the steady-state dry-burning scenario conditions are met, so as to determine whether the stove in the cooking area is in a steady-state dry-burning scenario. The steady-state dry-burning scenario conditions include that the temperature change meets the preset steady-state conditions and the preset over-temperature conditions. The preset over-temperature conditions include that the current temperature is greater than the sum of the cooking start temperature, the preset steady-state temperature of all stoves for boiling water, and the third preset temperature threshold, and is maintained for a fourth preset time period.

[0076] In this embodiment, refer to Figure 3 Based on the temperature changes, it is determined whether the steady-state dry-burning scenario conditions are met, so as to determine whether the stove in the cooking area is in a steady-state dry-burning scenario. Specifically, in order to accurately identify the stove in an abnormal overheating scenario, a relatively high overheating (high temperature) temperature (or the first protection temperature, and the first protection temperature is generally for stir-frying scenarios) is usually set. However, this will lead to the inability to accurately identify the water-boiling dry-burning scenario, because the temperature of the water-boiling dry-burning scenario is generally lower than the overheating temperature (first protection temperature) of the stir-frying scenario.

[0077] Based on this, in this embodiment, a method for identifying preset steady-state dry burning scenarios, especially water boiling dry burning scenarios, is set. Specifically, firstly, it is determined that the temperature change meets the preset steady-state conditions. Secondly, based on meeting the steady-state conditions, it is determined whether the over-temperature conditions are met. The preset over-temperature conditions include the current temperature being greater than the sum of the cooking start temperature, the preset steady-state temperature of all stoves for boiling water, and the third preset temperature threshold, and being maintained for a fourth preset time period.

[0078] That is, in this embodiment, the second protection temperature is set as: protectT = cooking start temperature StartT + total_N_S_T (the total preset steady-state temperature of boiling water for all stoves) + temperature difference threshold Q3 (the third preset temperature threshold). If, after entering the high-temperature steady-state state, the temperature data after the current window is filtered (current temperature) > ProtectT (the second protection temperature) and can be maintained for a period of time T4 (the fourth preset time period), it is determined that the preset over-temperature condition is met.

[0079] The preset steady-state condition simultaneously satisfies the following requirements: The window slope is less than or equal to a preset slope threshold; The temperature peak difference is less than or equal to the fourth preset temperature threshold. The window temperature difference is less than or equal to the fifth preset temperature threshold. The current temperature is greater than the sum of the cooking start temperature and the total preset steady-state temperature of all stoves for boiling water, and it continues to maintain this temperature for the third preset time period.

[0080] That is, in this embodiment, determining whether a steady-state condition is reached requires the simultaneous satisfaction of the following conditions: The first requirement is that the window slope slop ≤ threshold P1 (preset slope threshold), the peak difference peakDiff ≤ threshold P2 (fourth preset temperature threshold), the window temperature difference RangeDiff ≤ threshold P3 (fifth preset temperature threshold), the current temperature > (cooking start temperature StartT + total preset steady-state temperature of all stoves total_N_S_T), and it can be maintained for a period of time T3 (maintain the third preset time period), which means that it has entered the preset steady-state state.

[0081] In this embodiment, if the window temperature difference is greater than or equal to a first preset temperature threshold, or if the current temperature is greater than the sum of the cooking start temperature and the preset maximum normal cooking total temperature of all stoves and remains at this temperature for a first preset time period, then the stoves within the cooking area are determined to be in an abnormal fire scenario. If the current temperature is greater than the sum of the cooking start temperature, the preset maximum normal cooking total temperature of all stoves, and the second preset temperature threshold, and remains at this temperature for a second preset time period, then the stoves within the cooking area are determined to be in an abnormal overheating scenario. If the temperature change satisfies a preset steady-state condition and a preset overheating condition, then the stoves within the cooking area are determined to be in a preset steady-state dry-burning scenario. The preset overheating condition includes the current temperature being greater than the sum of the cooking start temperature, the preset steady-state boiling total temperature of all stoves, and the third preset temperature threshold, and remaining at this temperature for a fourth preset time period. It can be understood that in this embodiment, by accurately identifying various abnormal dry-burning scenarios, a foundation is provided for subsequently executing corresponding strategies.

[0082] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in the first embodiment can be referred to the above description. On this basis, the step of controlling the execution of the corresponding anti-dry-burning control strategy if the condition is met includes one or more of the following: Step C1: If the condition is met, output the corresponding dry burning warning signal; Step C2: If the condition is met, output the corresponding dry-burning type. In step C3, if the current state is active and the system is linked to the stove, then the corresponding turn-off command is output.

[0083] In this embodiment, an anti-dry-burning control strategy is provided. Specifically, the anti-dry-burning control strategy includes, but is not limited to, outputting a corresponding dry-burning warning signal. Specifically, the corresponding dry-burning warning signal is displayed on the range hood's display screen, and a corresponding prompt sound can be output. In addition, the corresponding dry-burning type can also be displayed on the range hood's display screen, such as whether it is an abnormal fire scenario, an abnormal overheating scenario, or a steady-state dry-burning scenario.

[0084] In this embodiment, if the range hood is linked with the stove, it can output a corresponding fire-off command to the stove, which can prevent abnormal situations such as fires.

[0085] In this embodiment, if linked with the stove, before outputting the corresponding fire-off command, further judgment can be made by other sensors on the range hood, such as the camera on the range hood, to determine whether there is a user in the corresponding range. If no user is in the corresponding range, the corresponding fire-off command can be output to the stove to avoid abnormal situations such as fire.

[0086] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the anti-dry-burning control of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0087] This application provides a cooktop, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform the anti-dry-burning control method in Embodiment 1 above.

[0088] The following is for reference. Figure 5 It shows a structural schematic diagram suitable for implementing the embodiments of this application for a range hood. Figure 5 The range hood shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of this application.

[0089] like Figure 5As shown, the range hood may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the range hood. The processing device 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touchscreen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. The communication device 1009 allows the range hood to communicate wirelessly or wiredly with other devices to exchange data. Although the figures show range hoods with various systems, it should be understood that implementing or having all of the systems shown is not required. More or fewer systems may be implemented alternatively.

[0090] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0091] The range hood provided in this application, employing the anti-dry-burning control method in the above embodiments, can solve the technical problem of anti-dry-burning control. Compared with the prior art, the beneficial effects of the range hood provided in this application are the same as those of the anti-dry-burning control method provided in the above embodiments, and other technical features of this range hood are the same as those disclosed in the method of the previous embodiment, and will not be repeated here.

[0092] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0093] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0094] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to perform the anti-dry-burning control in the above embodiments.

[0095] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0096] The aforementioned computer-readable storage medium may be included in the cooktop or may exist independently and not assembled into the cooktop.

[0097] The aforementioned computer-readable storage medium carries one or more programs. When the aforementioned one or more programs are executed by the stove, the stove causes the stove to: collect access information from different application sources through an access collection program and store the access information in a message queue, wherein the access collection program is deployed in the runtime environment of the application; perform service call dependency deduction on the access information in the message queue to obtain the call relationship between the different applications, and generate an application topology architecture based on the call relationship.

[0098] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0099] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0100] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0101] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the above-mentioned anti-dry-burning control, thereby solving the technical problem of anti-dry-burning control. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the anti-dry-burning control provided in the above embodiments, and will not be repeated here.

[0102] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the anti-dry-burning control steps as described above.

[0103] The computer program product provided in this application can solve the technical problem of anti-dry-burning control. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the anti-dry-burning control provided in the above embodiments, and will not be repeated here.

[0104] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. All equivalent structural transformations made under the technical concept of this application and using the content of this application specification and drawings, or direct / indirect applications in other related technical fields, are included in the scope of protection of this application.

Claims

1. A method for preventing dry burning, characterized in that, The method for preventing dry burning includes: Based on the range hood, non-contact monitoring is used to monitor temperature changes in the corresponding cooking area. Based on the temperature changes, it is determined whether the stove in the cooking area is in a preset dry-burning scenario. If so, the corresponding anti-dry-burning control strategy is executed.

2. The anti-dry-burning control method as described in claim 1, characterized in that, The method of non-contact monitoring of temperature changes within the cooking area based on a range hood includes the following steps: Based on the range hood, the temperature change in the corresponding cooking area is monitored non-contactly. The range hood may be linked or not linked with the cooktop, and the cooktop can be any type of cooktop.

3. The anti-dry-burning control method as described in claim 1, characterized in that, The step of non-contact monitoring of temperature changes in the corresponding cooking area based on the range hood includes: Based on the sensors installed on the range hood, raw data in the corresponding window within the corresponding cooking area is continuously acquired; Based on the original data, the temperature change within the corresponding window is determined. The temperature change includes one or more of the following: peak temperature difference, window temperature difference, and window slope. The peak temperature difference is the difference between the highest and lowest temperature data within the corresponding window. The window temperature difference is the temperature difference between the first and last temperature data within the corresponding window. The window slope is used to characterize the rate of temperature change within the corresponding window.

4. The anti-dry-burning control method as described in claim 3, characterized in that, The step of determining the temperature change within the corresponding window based on the original data includes: The original data is then filtered. Based on the filtered raw data, the temperature change within the corresponding window is determined.

5. The anti-dry-burning control method as described in claim 3, characterized in that, The preset dry-burning scenarios include abnormal fire scenarios, abnormal overheating scenarios, or steady-state dry-burning scenarios.

6. The anti-dry-burning control method as described in claim 5, characterized in that, The step of determining whether the stove in the cooking area is in a preset dry-burning scenario based on the temperature change includes any one of the following: Based on the temperature change, determine whether the fire scene conditions are met, so as to determine whether the stove in the cooking area is in an abnormal fire scene. The fire scene conditions include the window temperature difference being greater than or equal to a first preset temperature threshold, or the current temperature being greater than the sum of the cooking start temperature and the preset maximum normal cooking total temperature of all stoves and being maintained for a first preset time period. Based on the temperature changes, it is determined whether the abnormal overheating scenario conditions are met, so as to determine whether the stove in the cooking area is in an abnormal overheating scenario. The abnormal overheating scenario conditions include the current temperature being greater than the sum of the cooking start temperature, the maximum preset normal cooking total temperature of all stoves, and the second preset temperature threshold, and being maintained for a second preset time period. Based on the temperature changes, it is determined whether the steady-state dry-burning scenario conditions are met, so as to determine whether the stove in the cooking area is in a steady-state dry-burning scenario. The steady-state dry-burning scenario conditions include that the temperature changes meet the preset steady-state conditions and the preset over-temperature conditions. The preset over-temperature conditions include that the current temperature is greater than the sum of the cooking start temperature, the preset steady-state temperature of all stoves for boiling water, and the third preset temperature threshold, and is maintained for a fourth preset time period.

7. The anti-dry-burning control method as described in claim 6, characterized in that, The preset steady-state conditions satisfy the following requirements: The window slope is less than or equal to a preset slope threshold; The temperature peak difference is less than or equal to the fourth preset temperature threshold. The window temperature difference is less than or equal to the fifth preset temperature threshold. The current temperature is greater than the sum of the cooking start temperature and the total preset steady-state temperature of all stoves for boiling water, and it continues to maintain this temperature for the third preset time period.

8. The anti-dry-burning control method as described in claim 1, characterized in that, If the condition is met, the steps for controlling the execution of the corresponding anti-dry-burning control strategy include one or more of the following: If it is in the state, output the corresponding dry burning warning signal; If it is in the state of dry burning, output the corresponding dry burning type; If it is in the specified state, and if it is linked with the stove, then the corresponding turn-off command will be output.

9. A range hood, characterized in that, The cooktop includes at least: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the anti-dry-burning control method as described in any one of claims 1 to 8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a program for implementing the anti-dry-burning control method, the program for implementing the anti-dry-burning control method being executed by a processor to implement the steps of the anti-dry-burning control method as described in any one of claims 1 to 8.

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