Monitoring device, hood-based monitoring method, system, apparatus, and medium

Abstract

The present disclosure provides a monitoring device, an extractor hood-based monitoring method, a system, equipment and a medium. The monitoring method comprises: acquiring infrared image data collected by an infrared thermal imaging module, and acquiring visible light image data collected by a camera lens; determining the on-off state of each cooking appliance according to the infrared image data; and automatically controlling a driving device to drive the camera lens to move according to the on-off state, so as to acquire the visible light image data of a one-side cooking appliance. According to the present disclosure, the on-off state of the cooking appliance is determined according to the temperature data, the cooking appliance in the on state is taken as the object to be monitored, the narrow-angle camera lens is controlled to move to the object, the most sensitive central area of the camera lens is aligned with the single cooking center, the image quality is better, the recognition result of the image is more accurate, the judgment operation included in the recognition result is more accurate, the infrared image data and the visible light image data are complementary to each other, the cost is reduced, and the user experience is improved.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a monitoring device, a monitoring method, system, equipment and medium based on a range hood. Background Technology

[0002] Current range hoods rely solely on infrared thermal imaging or wide-angle cameras to monitor both sides of the cooktop simultaneously, aiming to achieve intelligent monitoring of cooking status such as airflow control, anti-dry-burning warnings, oil temperature monitoring, and overflow detection. However, both approaches have limitations from the perspective of thermal radiation and visible light. Range hoods using only infrared thermal imaging can monitor temperature, but cannot accurately identify the location and material of cooking utensils at room temperature. While wide-angle cameras can identify the location and material of cooking utensils, the images are not precise enough for monitoring scenarios like anti-dry-burning. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of inaccurate identification of cooking status in the prior art, and to provide a monitoring device, a monitoring method, system, equipment and medium based on a range hood.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] This invention provides a monitoring device for monitoring stoves, the monitoring device comprising: an infrared thermal imaging module and a camera module;

[0006] The infrared thermal imaging module includes an infrared sensor; the camera module includes a camera lens and a driving device.

[0007] The infrared sensor is directed toward the location of the stove;

[0008] The infrared thermal imaging module is used to collect infrared image data of the stove;

[0009] The camera lens is used to collect visible light image data of the stove;

[0010] The driving device is used to drive the camera lens to move along a preset trajectory so that the moved camera lens faces the stove on one side.

[0011] Preferably, the drive device includes a driven gear, a driving gear, and a stepper motor;

[0012] The driving gear is connected to the stepper motor and the driven gear respectively;

[0013] The rotating shaft of the stepper motor drives the driving gear to rotate synchronously. The driving gear is connected to the driven gear, and the driven gear is fixedly connected to the camera lens.

[0014] Preferably, the camera module further includes a rotation axis;

[0015] The driven gear rotates around the axis of the rotating shaft.

[0016] The present invention also provides a monitoring method based on a range hood, the monitoring method being implemented using the aforementioned monitoring device, the monitoring method comprising:

[0017] Acquire infrared image data collected by the infrared thermal imaging module and visible light image data collected by the camera lens;

[0018] The on / off status of each stove is determined based on the infrared image data; wherein, the on / off status includes the on state;

[0019] The automatic control drive device, based on the switch status, drives the camera lens to move in order to acquire visible light image data of one side of the stove.

[0020] Preferably, determining the on / off state of each stove based on the infrared image data includes:

[0021] Temperature data of the target area is extracted from the infrared image data; wherein each stove corresponds to one target area;

[0022] If the temperature data meets the activation criteria, then the corresponding stove is determined to be in the activated state.

[0023] Preferably, the activation determination condition includes at least one of the following:

[0024] The average temperature of the target area is greater than a preset first temperature threshold.

[0025] The highest temperature in the target area is greater than a preset second temperature threshold.

[0026] The average temperature rise of the target area within a preset time period is greater than a preset third temperature threshold.

[0027] Preferably, the step of automatically controlling the driving device to move the camera lens according to the switch state includes:

[0028] When the switch state indicates that only one stove is in the on state, the control drive device drives the camera lens to move so that the camera lens is facing the stove in the on state.

[0029] Preferably, the step of automatically controlling the driving device to move the camera lens according to the switch state further includes:

[0030] When the switch state indicates that both stoves are in the on state, the control drive device drives the camera lens to move back and forth so that the camera lens alternately faces both stoves, and when the camera lens alternately faces one stove, it stays on one side for a preset single-side monitoring time.

[0031] The duration of the single-sided monitoring is positively correlated with the degree of temperature change of the stove, and the degree of temperature change is calculated from the temperature data of the target area.

[0032] Preferably, the ratio of the monitoring time on one side of the left stove to the monitoring time on one side of the right stove is expressed by the following formula:

[0033]

[0034] Where Tl represents the monitoring duration of the left stove, Tr represents the monitoring duration of the right stove, l represents the average temperature change of the left stove per unit time, and r represents the average temperature change of the right stove per unit time.

[0035] The present invention also provides a monitoring system based on a range hood, the monitoring system being implemented using the aforementioned monitoring device, the monitoring system comprising:

[0036] The acquisition module is used to acquire infrared image data collected by the infrared thermal imaging module and visible light image data collected by the camera lens.

[0037] A switch status determination module is used to determine the switch status of each stove based on the infrared image data; wherein, the switch status includes an on state;

[0038] The motion control module is used to automatically control the drive device to move the camera lens according to the switch status in order to obtain visible light image data of one side of the stove.

[0039] Preferably, the switch state determination module is further configured to extract temperature data of the target area from the infrared image data; wherein each stove corresponds to one target area;

[0040] The switch state determination module is also used to determine that the corresponding stove is in the on state if the temperature data meets the on judgment condition.

[0041] Preferably, the activation determination condition includes at least one of the following:

[0042] The average temperature of the target area is greater than a preset first temperature threshold.

[0043] The highest temperature in the target area is greater than a preset second temperature threshold.

[0044] The average temperature rise of the target area within a preset time period is greater than a preset third temperature threshold.

[0045] Preferably, the motion control module is further configured to control the drive device to move the camera lens so that the camera lens faces the stove in the on state when the switch state indicates that only one stove is in the on state.

[0046] Preferably, the motion control module is further configured to control the drive device to drive the camera lens to move back and forth when the switch state indicates that both stoves are in the on state, so that the camera lens alternately faces both stoves, and to stay on one side for a preset single-side monitoring time when the camera lens alternately faces one stove.

[0047] The duration of the single-sided monitoring is positively correlated with the degree of temperature change of the stove, and the degree of temperature change is calculated from the temperature data of the target area.

[0048] Preferably, the ratio of the monitoring time on one side of the left stove to the monitoring time on one side of the right stove is expressed by the following formula:

[0049]

[0050] Where Tl represents the monitoring duration of the left stove, Tr represents the monitoring duration of the right stove, l represents the average temperature change of the left stove per unit time, and r represents the average temperature change of the right stove per unit time.

[0051] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the aforementioned monitoring method based on a range hood.

[0052] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the aforementioned monitoring method based on a range hood.

[0053] The positive and progressive effects of this invention are as follows:

[0054] Temperature data of the stove is obtained through an infrared thermal imaging module. Based on the temperature data, the on / off status of the stove is determined. The stove in the on state is selected as the object to be monitored, and the narrow-angle camera lens is moved to face the object. If both stoves are on, the camera lens is moved back and forth to monitor both stoves alternately, and the monitoring time for each stove is adjusted according to the severity of temperature changes. When monitoring one stove, the most sensitive central area of ​​the camera lens is aligned with the center of that stove, resulting in better image quality and more accurate image recognition. This allows for more precise identification of ingredients, lid status, dry burning, and overflow detection. The combination of infrared and visible light image data is complementary, and the narrow-angle camera lens reduces costs and improves the user experience. Attached Figure Description

[0055] Figure 1 This is an external view of an example of the monitoring device according to Embodiment 1 of the present invention.

[0056] Figure 2 This is a structural diagram of the camera module of the monitoring device according to Embodiment 1 of the present invention.

[0057] Figure 3 This is a front view of the monitoring stove of the monitoring device according to Embodiment 1 of the present invention.

[0058] Figure 4 This is a flowchart of a monitoring method based on a range hood according to Embodiment 2 of the present invention.

[0059] Figure 5 This is a flowchart of a specific implementation of step S12 in the monitoring method based on a range hood according to Embodiment 2 of the present invention.

[0060] Figure 6 This is a schematic diagram of the monitoring system based on a range hood according to Embodiment 3 of the present invention.

[0061] Figure 7 This is a schematic diagram of the electronic device according to Embodiment 4 of the present invention. Detailed Implementation

[0062] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0063] Example 1

[0064] This embodiment provides a monitoring device for monitoring stoves. (Refer to...) Figure 1 The monitoring device includes an infrared thermal imaging module 1 and a camera module 2.

[0065] The infrared thermal imaging module 1 includes an infrared sensor 11. (Refer to...) Figure 1 and Figure 2 The camera module 2 includes a camera lens 21 and a drive device 200.

[0066] The infrared sensor 11 is directed toward the location of the stove.

[0067] Infrared thermal imaging module 1 is used to acquire infrared image data of the stove.

[0068] The camera lens 21 is used to collect visible light image data of the stove.

[0069] The drive unit 200 is used to drive the camera lens 21 to move along a preset trajectory so that the moved camera lens faces the stove on one side.

[0070] The monitoring device can be installed on the lower panel of range hood A or on other equipment.

[0071] Reference Figure 3 The infrared sensor 11 has a wide field of view (e.g., 90 degrees) and can be fixed centered on the central axis of the range hood A, covering the entire countertop (including both sides of the cooktop). The camera lens 21 has a narrow field of view (e.g., 15 degrees) and can only cover one side of the cooktop; it can be placed next to the infrared sensor 11. Compared to the wide-angle camera lens, the narrow-angle camera lens significantly reduces costs.

[0072] In this embodiment, a monitoring device composed of an infrared thermal imaging module and a camera module complements each other, enabling the monitoring of both infrared and visible light images of the cooking process within the stove's range. The infrared thermal imaging module obtains the stove's temperature data, determining its on / off status. Stove units in the on / off state are selected for monitoring. The narrow-angle camera lens is moved to face this target. When monitoring one side of the stove, the most sensitive central area of ​​the camera lens is aligned with the center of that side, resulting in better image quality and more accurate image recognition. This leads to more precise detection of ingredients, lid status, dry-burning, and overflow detection. The narrow-angle camera lens also reduces costs and enhances the user experience.

[0073] In one alternative implementation, refer to Figure 2 The drive unit 200 includes a driven gear 22, a driving gear 23, and a stepper motor 24.

[0074] The driving gear 23 is connected to the stepper motor 24 and the driven gear 22 respectively.

[0075] The rotating shaft of the stepper motor 24 drives the drive gear 23 to rotate synchronously. The drive gear 23 is connected to the driven gear 22 through transmission. The driven gear 22 is fixedly connected to the camera lens 21.

[0076] Among them, the driven gear 22 can be a gear-shaped structure on the back of the camera module 2.

[0077] The camera lens 21 can be rotated in the left and right directions by rotating the stepper motor 24 in the forward or reverse direction.

[0078] In this embodiment, the stepper motor drives the camera lens to move through the driving gear and the driven gear, thereby enabling the camera module to capture a visible light image of one side of the stove. The most sensitive central area of ​​the camera lens is aligned with the center of the stove on one side, resulting in better image quality and more accurate recognition results. This allows for more precise recognition of ingredients, lid status, dry burning, and overflow detection. Furthermore, the camera module captures a wider range of visible light images, further expanding the stove's recognition range and enhancing the user experience.

[0079] In an optional implementation, the camera module 2 further includes a rotation axis 25.

[0080] Driven gear 22 rotates around the axis of rotating shaft 25.

[0081] Among them, see Figure 3 The camera module 2 can be set as a sphere. The driven gear 22, the driving gear 23 and the stepper motor 24 are connected to the back of the camera module 2. The driven gear 22 rotates forward and backward around the axis of the rotating shaft 25, thereby driving the camera lens 21 to move.

[0082] The optical axis of the camera lens 21 always moves on the same coronal plane, and the preset trajectory on which the camera lens 21 can move is an arc.

[0083] In an optional implementation, the infrared sensor 11 and the rotation axis 25 are mounted on the same horizontal plane. It should be noted that the relative positions of the camera module and the infrared thermal imaging module can be horizontally or vertically aligned, but mounting the infrared sensor and the rotation axis on the same horizontal plane helps improve the efficiency and quality of processing infrared and visible light images.

[0084] Example 2

[0085] This embodiment provides a monitoring method based on a range hood, which is implemented using the monitoring device described in Embodiment 1. (Refer to...) Figure 4 Monitoring methods include:

[0086] S11. Acquire infrared image data collected by the infrared thermal imaging module and visible light image data collected by the camera lens.

[0087] S12. Determine the on / off status of each stove based on infrared image data. The on / off status includes the on state.

[0088] S13. Based on the switch status, the automatic control drive device drives the camera lens to move in order to obtain visible light image data of one side of the stove.

[0089] The monitoring device includes an infrared thermal imaging module, a camera lens, and a drive unit.

[0090] The on / off state of a stove can also include the off state.

[0091] The monitoring targets are determined based on their on / off status. Only stoves that are on need to be monitored; therefore, stoves that are on are selected as the monitoring targets. Since the camera lens has a narrow field of view, it can only cover one side of the stove. The camera lens needs to be moved to align with the side of the stove to be monitored, thereby acquiring visible light image data of that stove, which can then be used for identification.

[0092] This embodiment obtains the temperature data of the stove through an infrared thermal imaging module, determines the on / off status of the stove based on the temperature data, and selects the stove in the on state as the object to be monitored. The narrow-angle camera lens is moved so that the camera lens is facing the object. When monitoring one side of the stove, the most sensitive central area of ​​the camera lens is aligned with the center of the stove on that side, resulting in better image quality and more accurate recognition results. As a result, the recognition results, including food identification, lid status detection, dry burning detection, and overflow detection, can be more accurate. The combination of infrared image data and visible light image data complements each other, and the narrow-angle camera lens reduces costs and improves the user experience.

[0093] In one alternative implementation, refer to Figure 5 Step S12 includes:

[0094] S121. Extract temperature data of the target area from the infrared image data. Each stove corresponds to one target area.

[0095] S122. If the temperature data meets the conditions for activation, then the corresponding stove is determined to be in the activated state.

[0096] The target area can be the central area of ​​one side of the stove (including the burner core) or a fixed area near the burner core. The temperature data of the target area reflects the actual temperature of the corresponding stove.

[0097] In this embodiment, the stove is determined to be on by whether the temperature data of the target area meets the conditions for activation, thereby understanding the on / off status of the stoves on both sides.

[0098] In one optional implementation, the activation condition includes at least one of the following:

[0099] Condition 1: The average temperature of the target area is greater than the preset first temperature threshold.

[0100] Condition 2: The highest temperature in the target area is greater than the preset second temperature threshold.

[0101] Condition 3: The average temperature rise of the target area within a preset time period is greater than the preset third temperature threshold.

[0102] The activation condition includes at least one of condition 1, condition 2, and condition 3.

[0103] You can set the first temperature threshold, the second temperature threshold, the preset time period, and the third temperature threshold according to actual needs. The preset time period can be set by setting the duration of the time period. For example, the first temperature threshold is 40 degrees Celsius, the second temperature threshold is 80 degrees Celsius, the preset time period is 5 seconds, and the third temperature threshold is 8 degrees Celsius.

[0104] In this embodiment, based on the temperature of the dual-sided stove core monitored by the temperature sensor, the stepper motor is controlled to move the camera lens, thereby reasonably determining the monitoring object, shooting time and shooting range of the camera lens when the field of view of the camera lens is narrow.

[0105] In an optional implementation, step S13 includes:

[0106] When the switch state indicates that only one stove is in the on state, the control drive device drives the camera lens to move so that the camera lens is facing the stove in the on state.

[0107] In the case where only one stove is on, that stove is the only object that needs to be monitored. The camera is moved so that it is facing the stove and is monitored until the object to be monitored changes.

[0108] Understandably, once the object to be monitored changes, the camera needs to be moved to switch the monitoring target.

[0109] In an optional implementation, step S13 further includes:

[0110] When the switch status indicates that both stoves are in the on state, the control drive device drives the camera lens to move back and forth so that the camera lens turns towards both stoves in turn, and stops for a preset single-side monitoring time when the camera lens turns towards one stove.

[0111] Among them, the duration of single-sided monitoring is positively correlated with the degree of temperature change of the stove, and the degree of temperature change is calculated from the temperature data of the target area.

[0112] This embodiment obtains the temperature data of the stove through an infrared thermal imaging module, determines the on / off status of the stove based on the temperature data, and selects the stove in the on state as the object to be monitored. The narrow-angle camera lens is moved to face the object. If both stoves on the left and right sides are on, the camera lens is moved back and forth to monitor both stoves alternately, and the monitoring time for each stove is adjusted according to the severity of temperature changes. When monitoring one stove, the most sensitive central area of ​​the camera lens is aligned with the center of the stove on that side, resulting in better image quality and more accurate image recognition. This allows for more precise identification of ingredients, lid status, dry burning, and overflow detection. The combination of infrared and visible light image data is complementary, and the narrow-angle camera lens reduces costs and improves the user experience.

[0113] In an optional implementation, the ratio of the monitoring time on one side of the left stove to the monitoring time on one side of the right stove is expressed by the following formula:

[0114]

[0115] Where Tl represents the monitoring duration of the left stove, Tr represents the monitoring duration of the right stove, l represents the average temperature change of the left stove per unit time, and r represents the average temperature change of the right stove per unit time.

[0116] Assuming the camera module is installed at a height of h above the countertop, and the distance between the two stove centers is d, then the camera lens rotates at an angle... The rotation direction is either to the left or to the right.

[0117] Assuming a unit of time is 10 seconds, once both stoves are turned on, the monitoring duration of camera module 2 is adjusted based on the intensity of temperature changes on both sides. For example, if the average temperature change of the left stove within 10 seconds is 1 degree Celsius, and the average temperature change of the right stove within the same time period is r degrees Celsius, then the ratio of the continuous monitoring duration for both sides per minute is:

[0118]

[0119] That is, every time Seconds later, the camera moved from the left to the right, and then... A few seconds later, the camera returned to the left.

[0120] In this embodiment, when both the left and right stoves are turned on, the camera lens is controlled to move back and forth to monitor the two stoves alternately. The monitoring time of each stove is adjusted according to the severity of temperature changes. The ratio of the monitoring time of the left stove to that of the right stove is further quantified, so that the allocation of the monitoring time of the two stoves is more in line with the structure of the monitoring device and the actual cooking state, thus improving the user experience.

[0121] Example 3

[0122] This embodiment provides a monitoring system based on a range hood, which utilizes the monitoring device described in Embodiment 1. (Refer to...) Figure 6 The monitoring system includes:

[0123] The acquisition module M1 is used to acquire infrared image data collected by the infrared thermal imaging module and visible light image data collected by the camera lens.

[0124] The switch status determination module M2 is used to determine the switch status of each stove based on infrared image data. The switch status includes the on state.

[0125] The motion control module M3 is used to automatically control the drive device to move the camera lens according to the switch status in order to obtain visible light image data of one side of the stove.

[0126] The monitoring device includes an infrared thermal imaging module, a camera lens, and a drive unit.

[0127] The on / off state of a stove can also include the off state.

[0128] The monitoring targets are determined based on their on / off status. Only stoves that are on need to be monitored; therefore, stoves that are on are selected as the monitoring targets. Since the camera lens has a narrow field of view, it can only cover one side of the stove. The camera lens needs to be moved to align with the side of the stove to be monitored, thereby acquiring visible light image data of that stove, which can then be used for identification.

[0129] This embodiment obtains the temperature data of the stove through an infrared thermal imaging module, determines the on / off status of the stove based on the temperature data, and selects the stove in the on state as the object to be monitored. The narrow-angle camera lens is moved so that the camera lens is facing the object. When monitoring one side of the stove, the most sensitive central area of ​​the camera lens is aligned with the center of the stove on that side, resulting in better image quality and more accurate recognition results. As a result, the recognition results, including food identification, lid status detection, dry burning detection, and overflow detection, can be more accurate. The combination of infrared image data and visible light image data complements each other, and the narrow-angle camera lens reduces costs and improves the user experience.

[0130] In an optional implementation, the switch state determination module M2 is further configured to extract temperature data of the target area from the infrared image data. Each stove corresponds to one target area.

[0131] The switch status determination module M2 is also used to determine that the corresponding stove is in the on state if the temperature data meets the on judgment condition.

[0132] The target area can be the central area of ​​one side of the stove (including the burner core) or a fixed area near the burner core. The temperature data of the target area reflects the actual temperature of the corresponding stove.

[0133] In this embodiment, the stove is determined to be on by whether the temperature data of the target area meets the conditions for activation, thereby understanding the on / off status of the stoves on both sides.

[0134] In one optional implementation, the activation condition includes at least one of the following:

[0135] Condition 1: The average temperature of the target area is greater than the preset first temperature threshold.

[0136] Condition 2: The highest temperature in the target area is greater than the preset second temperature threshold.

[0137] Condition 3: The average temperature rise of the target area within a preset time period is greater than the preset third temperature threshold.

[0138] The activation condition includes at least one of condition 1, condition 2, and condition 3.

[0139] You can set the first temperature threshold, the second temperature threshold, the preset time period, and the third temperature threshold according to actual needs. The preset time period can be set by setting the duration of the time period. For example, the first temperature threshold is 40 degrees Celsius, the second temperature threshold is 80 degrees Celsius, the preset time period is 5 seconds, and the third temperature threshold is 8 degrees Celsius.

[0140] In this embodiment, based on the temperature of the dual-sided stove core monitored by the temperature sensor, the stepper motor is controlled to move the camera lens, thereby reasonably determining the monitoring object, shooting time and shooting range of the camera lens when the field of view of the camera lens is narrow.

[0141] In an optional implementation, the motion control module M3 is further configured to control the drive device to move the camera lens so that the camera lens is directed toward the stove that is in the on state when the switch state indicates that only one stove is in the on state.

[0142] In the case where only one stove is on, that stove is the only object that needs to be monitored. The camera is moved so that it is facing the stove and is monitored until the object to be monitored changes.

[0143] Understandably, once the object to be monitored changes, the camera needs to be moved to switch the monitoring target.

[0144] In an optional implementation, the motion control module M3 is further configured to control the drive device to drive the camera lens to move back and forth so that the camera lens alternately faces the two stoves when the switch state indicates that both stoves are in the on state, and to stay on one side for a preset single-side monitoring time when the camera lens alternately faces one stove.

[0145] Among them, the duration of single-sided monitoring is positively correlated with the degree of temperature change of the stove, and the degree of temperature change is calculated from the temperature data of the target area.

[0146] This embodiment obtains the temperature data of the stove through an infrared thermal imaging module, determines the on / off status of the stove based on the temperature data, and selects the stove in the on state as the object to be monitored. The narrow-angle camera lens is moved to face the object. If both stoves on the left and right sides are on, the camera lens is moved back and forth to monitor both stoves alternately, and the monitoring time for each stove is adjusted according to the severity of temperature changes. When monitoring one stove, the most sensitive central area of ​​the camera lens is aligned with the center of the stove on that side, resulting in better image quality and more accurate image recognition. This allows for more precise identification of ingredients, lid status, dry burning, and overflow detection. The combination of infrared and visible light image data is complementary, and the narrow-angle camera lens reduces costs and improves the user experience.

[0147] In an optional implementation, the ratio of the monitoring time on one side of the left stove to the monitoring time on one side of the right stove is expressed by the following formula:

[0148]

[0149] Where Tl represents the monitoring duration of the left stove, Tr represents the monitoring duration of the right stove, l represents the average temperature change of the left stove per unit time, and r represents the average temperature change of the right stove per unit time.

[0150] Assuming the camera module is installed at a height of h above the countertop, and the distance between the two stove centers is d, then the camera lens rotates at an angle... The rotation direction is either to the left or to the right.

[0151] Assuming a unit of time is 10 seconds, once both stoves are turned on, the monitoring duration of camera module 2 is adjusted based on the intensity of temperature changes on both sides. For example, if the average temperature change of the left stove within 10 seconds is 1 degree Celsius, and the average temperature change of the right stove within the same time period is r degrees Celsius, then the ratio of the continuous monitoring duration for both sides per minute is:

[0152]

[0153] That is, every time Seconds later, the camera moved from the left to the right, and then... A few seconds later, the camera returned to the left.

[0154] In this embodiment, when both the left and right stoves are turned on, the camera lens is controlled to move back and forth to monitor the two stoves alternately. The monitoring time of each stove is adjusted according to the severity of temperature changes. The ratio of the monitoring time of the left stove to that of the right stove is further quantified, so that the allocation of the monitoring time of the two stoves is more in line with the structure of the monitoring device and the actual cooking state, thus improving the user experience.

[0155] Example 4

[0156] Figure 7 This is a schematic diagram of an electronic device provided in Embodiment 4 of the present invention. The electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the monitoring method based on a range hood in Embodiment 2. Figure 7 The electronic device 30 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of the present invention.

[0157] The electronic device 30 may be in the form of a general-purpose computing device, such as a server device. The components of the electronic device 30 may include, but are not limited to: at least one processor 31, at least one memory 32, and a bus 33 connecting different system components (including memory 32 and processor 31).

[0158] Bus 33 includes a data bus, an address bus, and a control bus.

[0159] The memory 32 may include volatile memory, such as random access memory (RAM) 321 and / or cache memory 322, and may further include read-only memory (ROM) 323.

[0160] The memory 32 may also include a program / utility 325 having a set (at least one) of program modules 324, including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0161] The processor 31 executes various functional applications and data processing by running computer programs stored in the memory 32, such as the range hood-based monitoring method in Embodiment 2 of the present invention.

[0162] Electronic device 30 can also communicate with one or more external devices 34 (e.g., buttons, pointing devices, etc.). This communication can be performed via input / output (I / O) interface 35. Furthermore, the model-generated electronic device 30 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 36. As shown in the figure, network adapter 36 communicates with other modules of the model-generated electronic device 30 via bus 33. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the model-generated electronic device 30, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems.

[0163] It should be noted that although several units / modules or sub-units / modules of the electronic device are mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of the present invention, the features and functions of two or more units / modules described above can be embodied in one unit / module; conversely, the features and functions of one unit / module described above can be further divided into multiple units / modules for embodiment.

[0164] Example 5

[0165] This embodiment provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the range hood-based monitoring method in Embodiment 2.

[0166] The readable storage medium may be more specifically adopted, including but not limited to: portable disk, hard disk, random access memory, read-only memory, erasable programmable read-only memory, optical storage device, magnetic storage device, or any suitable combination thereof.

[0167] In a possible implementation, the present invention can also be implemented as a program product comprising program code, which, when the program product is run on a terminal device, is used to cause the terminal device to execute the monitoring method based on a range hood as described in Embodiment 2.

[0168] The program code for executing the present invention can be written in any combination of one or more programming languages. The program code can be executed entirely on the user device, partially on the user device, as a standalone software package, partially on the user device and partially on a remote device, or entirely on a remote device.

[0169] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A monitoring method based on a range hood, characterized in that, The monitoring method is implemented using a monitoring device, and the monitoring method includes: Acquire infrared image data collected by the infrared thermal imaging module and visible light image data collected by the camera lens; The on / off status of each stove is determined based on the infrared image data; wherein, the on / off status includes the on state; The automatic control drive device drives the camera lens to move according to the switch status in order to obtain visible light image data of one side of the stove; The step of determining the on / off status of each stove based on the infrared image data includes: Temperature data of the target area is extracted from the infrared image data; wherein each stove corresponds to one target area; If the temperature data meets the activation judgment condition, then the corresponding stove is determined to be in the activated state; The automatic control of the drive device to move the camera lens according to the switch state includes: When the switch state indicates that only one stove is in the on state, the control drive device drives the camera lens to move so that the camera lens is facing the stove in the on state; The automatic control of the drive device to move the camera lens according to the switch state further includes: When the switch state indicates that both stoves are in the on state, the control drive device drives the camera lens to move back and forth so that the camera lens alternately faces both stoves, and when the camera lens alternately faces one stove, it stays on one side for a preset single-side monitoring time. The duration of the single-sided monitoring is positively correlated with the degree of temperature change of the stove, and the degree of temperature change is calculated from the temperature data of the target area.

2. The monitoring method based on a range hood as described in claim 1, characterized in that, The activation determination condition includes at least one of the following: The average temperature of the target area is greater than a preset first temperature threshold. The highest temperature in the target area is greater than a preset second temperature threshold. The average temperature rise of the target area within a preset time period is greater than a preset third temperature threshold.

3. The monitoring method based on a range hood as described in claim 1, characterized in that, The ratio of the monitoring time on the left side of the stove to the monitoring time on the right side of the stove is expressed by the following formula: Tl:Tr= ; Where Tl represents the monitoring duration of the left stove, Tr represents the monitoring duration of the right stove, l represents the average temperature change of the left stove per unit time, and r represents the average temperature change of the right stove per unit time.

4. A monitoring system based on a range hood, characterized in that, The monitoring system is implemented using monitoring devices, and the monitoring system includes: The acquisition module is used to acquire infrared image data collected by the infrared thermal imaging module and visible light image data collected by the camera lens. A switch status determination module is used to determine the switch status of each stove based on the infrared image data; wherein, the switch status includes an on state; The motion control module is used to automatically control the drive device to move the camera lens according to the switch state in order to obtain visible light image data of one side of the stove. The switch state determination module is also used to extract temperature data of the target area from the infrared image data; wherein, each stove corresponds to one target area; The switch state determination module is also used to determine that the corresponding stove is in the on state if the temperature data meets the on judgment condition. The movement control module is also used to control the drive device to move the camera lens so that the camera lens faces the stove that is in the on state when the switch state indicates that only one stove is in the on state; The mobile control module is also used to control the driving device to drive the camera lens to move back and forth when the switch state indicates that both stoves are in the on state, so that the camera lens turns towards both stoves in turn, and to stay on one side for a preset single-side monitoring time when the camera lens turns towards one stove in turn; The duration of the single-sided monitoring is positively correlated with the degree of temperature change of the stove, and the degree of temperature change is calculated from the temperature data of the target area.

5. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the monitoring method based on a range hood as described in any one of claims 1 to 3.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the monitoring method based on the range hood as described in any one of claims 1 to 3.

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