TW202122719A - Range hood with interactive display and method thereof - Google Patents

Abstract

A range hood with interactive display and method are provided. The range hood is suitable for detecting the thermal image distribution of a heating device. The range hood includes a thermal image detection circuit, a range circuit, a display circuit and a control circuit. The control circuit controls the display circuit to sequentially divide an electronic recipe into multiple cooking schedules for displaying. When the cooking schedule is executed, the control display circuit displays a corresponding cooking guidance screen for the user to perform a corresponding cooking action on the heating device according to the cooking guidance screen. The control circuit performs the next cooking schedule according to the detection result of the thermal image detection circuit. In this way, the present invention enables users to easily and safely complete cooking through an interactive display of the electronic recipes. 已複製譯文

Description

Range hood with interactive display and interactive display method thereof

The present invention relates to an exhaust device, and particularly relates to a range hood with interactive display and an interactive display method thereof.

Range hoods are common household appliances in existing kitchens. The main operation of the range hood will be to exhaust the cooking fume generated by the cooking process through the rotation of the fan. Generally speaking, the range hood is provided with a plurality of buttons with different fan speeds for the user to press to start the operation according to demand. In addition, the current range hood cannot know whether the cooking behavior is abnormal during the cooking process, so accidents or cooking failures may occur due to human negligence.

The embodiment of the present invention provides a range hood with interactive display and an interactive display method thereof, which guide personnel to complete cooking through the interactive display mode of electronic recipes.

The embodiment of the present invention provides a range hood with interactive display, which is suitable for detecting the thermal image distribution of a heating device. The range hood includes a display circuit, a thermal image detection circuit, an exhaust circuit and a control circuit. The thermal image detection circuit has a plurality of thermal image detectors for obtaining a temperature plane distribution data of the heating device, and the temperature plane distribution data includes multiple point temperature detection values, and any temperature detection value is the image detection value. The temperature detection result of the detector. The control circuit is electrically connected to the thermal image detection circuit, the exhaust circuit and the display circuit. When the control circuit activates the smart cooking mode according to the electronic recipe, it controls the display circuit to divide the electronic recipe into multiple cooking schedules for execution in sequence. The control circuit controls the display circuit to display the corresponding cooking guidance screen when each stage of the cooking schedule is executed, so that the user can make corresponding cooking actions on the heating device according to the cooking guidance screen. The control circuit uses the detection result of the thermal image detection circuit as a basis for whether to proceed with the next cooking schedule.

The embodiment of the present invention provides an interactive display method for a range hood, which is suitable for detecting the thermal image distribution of a heating device. The range hood has a thermal image detection circuit, and the thermal image detection circuit has a plurality of thermal image detectors. , Used to obtain a temperature plane distribution data of the heating device. The temperature plane distribution data includes multiple temperature detection values, and any temperature detection value is the temperature detection result of the image detector. The interactive display method includes the following steps. When the smart cooking mode is activated according to the electronic recipe, the display circuit of the range hood is then controlled to divide the electronic recipe into multiple cooking schedules for execution in sequence. When each stage of the cooking schedule is executed, the control display circuit displays the corresponding cooking guidance screen, so that the user can make corresponding cooking actions on the heating device according to the cooking guidance screen. According to the detection result of the thermal image detection circuit, it is used as a basis for whether to proceed with the next cooking schedule.

In summary, the range hood with interactive display and the interactive display method provided by the embodiments of the present invention can accurately grasp the true temperature of the food through accurate temperature measurement, and guide personnel to easily complete the electronic display through the interactive display method. Cooking recipes.

In order to further understand the features and technical content of the present invention, please refer to the following detailed descriptions and drawings about the present invention, but these descriptions and accompanying drawings are only used to illustrate the present invention, not the rights to the present invention. The scope is subject to any restrictions.

The following are specific specific examples to illustrate the implementation of the present invention, and those skilled in the art can understand the advantages and effects of the present invention from the content provided in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the concept of the present invention. In addition, the drawings of the present invention are merely schematic illustrations, and are not drawn according to actual dimensions, and are stated in advance. The following embodiments will further describe the related technical content of the present invention in detail, but the provided content is not intended to limit the protection scope of the present invention.

It should be understood that although terms such as "first", "second", and "third" may be used in this document to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are mainly used to distinguish one element from another, or one signal from another signal. In addition, the term "or" used in this article may include any one or a combination of more of the associated listed items depending on the actual situation.

The embodiment of the present invention provides a range hood with interactive display and an interactive display method thereof. Specifically, the heating device and the range hood in the kitchen equipment are usually used together. However, the range hood of this embodiment is not only the basic function of discharging the range hood, but also integrates the temperature detection function of the thermal image sensor and The intelligent guidance function of interactive display, in turn, produces active and large-area heat source change detection for various cooking behaviors in the heating device, and based on the detection results, it is further combined with interactive display technology to guide personnel through screen display. Accurately judge the possible heat source temperature changes of the heating device during the cooking process, in order to remind people to pay attention through various active and intelligent interactive displays during the cooking process, thereby effectively reducing the failure of the cooking process due to human negligence or carelessness Or accidentally. The above-mentioned heating device can be various cooking equipments that provide heating and cooking, such as a gas stove or an induction cooker. For the convenience of description, the gas stove is used as the following explanation.

[Embodiment of the hardware architecture of the range hood]

Please refer to FIG. 1, which is a schematic diagram of a range hood with interactive display according to an embodiment of the present invention. The range hood 1 with interactive display of the present embodiment can detect the temperature of the heat source in a wide area, and relatively provides intelligently controlled interactive display operation guidance, which facilitates the personnel to smoothly complete the food preparation through the guidance of the interactive display. In one embodiment, the range hood 1 has a thermal image detection circuit 14, and the thermal image detection circuit 14 further includes a plurality of thermal image detectors 141, and the thermal image detector 141 can be used for the gas stove 3 The temperature of the heat source generated above is detected, and the temperature detection range of the plurality of thermal image detectors 141 is a wide-area plane rather than a single point-shaped area, so it can effectively cover the range of each heating area provided by the gas stove.

Furthermore, in one embodiment, the thermal image detection circuit 14 includes a plurality of thermal image detectors 141, and the thermal image detectors 141 are, for example, arranged in a dot-array planar distribution on the range hood 1 facing the gas. On the side directly above the furnace 3, through this wide-area setting method, the temperature changes of various heat sources in each heating zone of the gas furnace 3 can be effectively detected when the gas furnace 3 is in use. However, the present invention is not limited to the number and distribution of the thermal image detector 141, as long as the heating temperature change of the gas furnace 3 can be detected smoothly. Here, the thermal image detector 141 can, for example, convert the thermal radiation intensity emitted from the surface of the object to be detected into thermal images with relatively different temperature distributions. In one embodiment, the thermal image detector 141 may be an infrared thermal image detector, but the invention is not limited to this.

It is also worth noting that the range hood 1 also has a display circuit 16 which can display various display messages such as pictures, characters or symbols. The display circuit 16 is, for example, a flat-panel display. The range hood 1 can activate and execute the smart cooking mode according to the electronic recipe. The smart cooking mode is to display the relevant cooking guide screen through the display circuit 16 to guide the user to successfully complete the cooking schedule corresponding to each stage in the electronic recipe. Furthermore, the range hood 1 can use the detection result of the thermal image detector 141 to know whether the user has successfully completed the cooking action specified in the cooking schedule of each stage, and can display it through the display circuit 16 when it is judged to be completed. A cooking guide screen for cooking scheduling to further guide the user to gradually complete the cooking scheduling of each stage of the electronic recipe. The above cooking actions are, for example, any combination of placing pots, placing ingredients, turning over ingredients, and switching between large and small fires of the gas stove, but the present invention is not limited to this.

In conjunction with FIG. 1 and please refer to FIG. 2 at the same time, FIG. 2 is a functional block diagram of a range hood with interactive display according to an embodiment of the present invention. The range hood 1 may include, for example, a control circuit 10, an exhaust circuit 12, a thermal image detection circuit 14, a display circuit 16, a transmission interface 17, a storage circuit 18, and an operation interface 19. The control circuit 10 is electrically connected to the thermal image detection circuit 14, the exhaust circuit 12, the display circuit 16, the transmission interface 17, the storage circuit 18 and the operation interface 19.

According to the detection result of the thermal image detection circuit 14, the control circuit 10 can relatively provide various intelligent interactive display guidelines. In one embodiment, the control circuit 10 can learn the usage status of the gas stove 3 according to the detection result of the thermal image detection circuit 14, such as whether there is cooking or the amount of firepower used during cooking, etc. , The cooking mentioned here refers to the heating area of the stove mouth of the gas stove 3 where the pot is placed. When the control circuit 10 learns the usage status of the above-mentioned gas stove 3, it can correspondingly control the range hood 1 to automatically start the exhaust operation or automatically stop the exhaust operation. In addition, the control circuit 10 can control the display circuit 16 to display interactive display messages related to cooking according to the detection result of the thermal image detection circuit 14, so that the personnel can gradually complete the food preparation through the guidance of the display messages.

The exhaust circuit 12 may include a driving circuit 121 and a fan circuit 123, for example. The driving circuit 121 is electrically connected to the fan circuit 123 and controls the fan circuit 123 according to the driving signal output by the control circuit 10. In one embodiment, when the driving circuit 121 receives a driving signal representing start, it controls the fan circuit 123 to start running, so that the range hood 1 can start to exhaust smoke. When the driving circuit 121 receives a driving signal representing a stop, it controls the fan circuit 123 to stop running, and then the range hood 1 turns off the fan circuit 123 to stop the smoke exhaust. It is worth noting that, in one embodiment, the control circuit 10 reads the thermal image frame of the detection result of the thermal image detection circuit 14 through the sampling period. Here, the thermal image frame can be regarded as the temperature plane distribution data. By performing statistical and analytical calculations on the multiple temperature plane distribution data of multiple thermal image frames obtained at different times, various dynamic and static cooking behavior modes of the current gas stove 3 can be learned. For example, a single sampling period means that the control circuit 12 obtains all the detection results of all the thermal image detectors 14 at the same time, and all the detection results constitute a thermal image frame, that is, each thermal image detection The detector 14 will output the temperature detection value to form a thermal image frame, and the temperature detection value can reflect the temperature change of the individual thermal image detector 14 corresponding to the heat source image of the detected location.

For another example, for the thermal image detection circuit 14, all the thermal image detectors 141 output constitute the temperature plane distribution data, such as shown in FIG. 3A to FIG. 3C. FIG. 3A shows the measurement result of the thermal image detection circuit 14 at time T1. FIG. 3B shows the measurement result of the thermal image detection circuit 14 at time T2. FIG. 3C shows the measurement result of the thermal image detection circuit 14 at time T3. The time is changed from T1 time to T2 time, and then from T2 time to T3 time. For the thermal image in FIG. 3A, the hot spot 2 represents the detection result of a certain thermal image detector 141, and the color depth of the hot spot 2 or the size of the hot spot can correspondingly change with the temperature of the heat source. Fig. 3A is an example of when the gas stove 3 is just starting to cook. In the figure, it can be seen that the hot spot 2 is distributed around the edge of the pot at the beginning. After that, as time increases, the number of hot spots 2 in FIG. 3B is obviously higher than that in FIG. 3A, and the hot spots 2 are not only distributed at the edge of the pot, but also gradually spread to the middle of the pot. When the time continues to increase and comes to Figure 3C, it can be clearly seen that the hot spot 2 also appears in the position where most of the ingredients are placed in the middle of the pot. The above-mentioned FIGS. 3A to 3C are only used to illustrate the possible heat source distribution of the pot on the gas stove 3, but not to limit the present invention.

From this, it can be seen that the control circuit 10 can display different temperature distributions through the detection results of the thermal image detection circuit 14, and can know the placement position and temperature distribution of the target, such as pots and pans. Ingredients. In one embodiment, the control circuit 10 can also determine the position of the stove mouth of the gas stove 3 for cooking according to the detection result of the thermal image detection circuit 14, and further determine the cooking temperature according to the determined position of the stove mouth. When the food temperature reaches a set temperature, a cooling indicator signal is output, and the cooking temperature may be, for example, the temperature of a pot. In addition, the control circuit 10 determines the cooking temperature only when it determines that the pot is not covered, and the control circuit 10 obtains the highest temperature detection of the middle and front N points in the corresponding pot through the thermal image detection circuit 14. A high temperature average of the measured values is used as the cooking temperature. And when the pot has a lid, when the detection result obtained by the control circuit 10 according to the thermal image detection circuit 14 meets a high temperature protection condition, the control circuit 10 outputs a high temperature warning signal so that the gas stove 3 can stop according to the high temperature warning signal Heating operation. The high temperature protection condition is that a high temperature average value of the highest temperature detection values of the first N points in the temperature plane distribution data corresponds to an abnormal high temperature value, and the high temperature protection condition is the highest temperature value of each of the multiple continuous temperature plane distribution data The slope formed therebetween conforms to a preset rising slope value.

In one embodiment, the control circuit 10 may further include a furnace opening detection circuit, a pot cover detection circuit, a high temperature protection circuit, and an automatic shutdown circuit. The stove mouth detection circuit is used to detect whether there is a pot on the gas stove 3 for cooking, so as to know the position of the stove mouth and the number of stove mouths heated on the gas stove, and further know where the stove mouth is placed The size of the pot.

The lid detection circuit is used to detect that the pot placed on the gas stove has a lidless pot, and when detecting a lidless pot, it can also provide smart cooking detection, such as further determining whether the heated food in the pot is overheated or whether it is inside the pot Whether the ingredients are evenly heated.

The high-temperature protection circuit judges whether the pot for cooking on the gas stove 3 has a high temperature after the exhaust circuit 12 starts to operate, and can determine whether to output a high-temperature warning signal according to the judgment result.

The automatic shutdown circuit is to determine whether the gas stove 3 should stop cooking after the exhaust circuit 12 starts to operate, and can determine whether to control the exhaust circuit 12 to stop operating according to the judgment result. The above-mentioned judgment processing method of each circuit in the control circuit 10 is only an example, and the present invention is not limited thereto.

In this embodiment, the furnace mouth detection circuit, for example, uses the thermal image detection circuit 14 to determine the position of the furnace mouth of the gas stove by thermal images, and obtains a plurality of thermal image frames and analyzes the changes in the heat source image. Observe the distribution area and temperature change of the heat source image. For example, the furnace opening detection circuit 14 may sequentially overlay the obtained thermal image frames, and observe whether the distribution change of the heat source image in the overlay image matches the temperature change of the pot during the heating process. For example, when the pot has just started to heat, the resulting thermal image frame may be as shown in Figure 3A, that is, heat will start to accumulate from the edge of the pot. Then as time increases, as shown in Figure 3B and Figure 3C, the heat will also spread from the edge of the pot to the middle of the pot, and finally the heat source will gradually concentrate on the position where the ingredients are placed in the pot (such as the middle of the pot) ). Therefore, the furnace mouth detection circuit uses the heat source image distribution detected by the thermal image detection circuit 14, and further determines and analyzes whether the trend change of the heat source density meets a furnace mouth determination condition. If the judgment is met, it can be determined that the cookware is in the gas The position of the furnace opening for cooking on the furnace, and the judgment condition of the furnace opening is, for example, the temperature distribution change of the heating of the pot. In addition, after the stove mouth detection circuit detects the position of the stove mouth, it can further determine the number of stove mouths that appear on the gas stove, and when the position of the stove mouth is known, it can be known according to the distribution area of the heat source generated by the pot. Pot size.

In this embodiment, the pot cover detection circuit, for example, uses the thermal image detection circuit 14 to perform thermal image judgment on the pots placed at the furnace mouth of the gas stove 3 to learn the temperature changes of the pots, and to determine the temperature of the pots by determining the temperature of the pots. Come to learn that the pot has a lidless pot. For example, when the pot is cooked on a gas stove with a lid, the internal temperature of the pot is not easy to drop to a preset high temperature higher than room temperature due to the lid. Conversely, when the pot is cooked on a gas stove without a lid, the internal temperature of the pot is not easy to rise above the preset high temperature due to the uncovered pot. The preset high temperature is, for example, 80 degrees, but the present invention is not limited to this. , The preset high temperature can be adjusted according to actual needs. According to this, the lid detection circuit can know the temperature of the pot according to the thermal image detection result of the thermal image detection circuit 14. When the temperature of the pot exceeds the preset high temperature, it is determined that the current pot has a lid, and when the temperature of the pot is not When the preset high temperature is exceeded, it is assumed that the current pot is not covered. In addition, when the temperature of the pot is equal to the reference temperature, it can be determined that the gas stove has stopped cooking, and the reference temperature may be room temperature, for example.

In another embodiment, when the lid detection circuit determines that the pot is not covered, it can further determine whether the cooking ingredients in the pot are overheated, and whether the ingredients in the pot are evenly heated.

The high-temperature protection circuit outputs a high-temperature warning signal when the lid detection circuit detects that the pot has a lid, and when the detection result of the thermal image detection circuit 14 meets a high-temperature protection condition, so that personnel can prompt according to the high temperature The signal manually stops the heating operation of the gas stove 3 or the gas stove 3 can also automatically stop the heating operation directly according to the high temperature prompt signal. For example, where the high temperature meets the condition is that a high temperature average of the highest temperature detection values of the first N points in the thermal image frame meets an abnormal high temperature value, or the high temperature meets the condition is that each of the multiple thermal image frames The mutual slope between a maximum temperature value conforms to a preset rising slope value.

The transmission interface 17 is controlled by the control circuit 10 to obtain an electronic recipe externally, and the control circuit 10 stores the received electronic recipe in the storage circuit 18. In one embodiment, the transmission interface 17 can be a wired transmission interface or a wireless transmission interface, and the storage circuit 18 is a non-volatile memory.

The operating interface 19 is controlled by the control circuit 10 for personnel to input related operating signals through the operating interface 19 to control the operation of the range hood 1. In an embodiment, the operation interface 19 may be any combination of a key-in interface, a touch input interface, or a voice input interface. Therefore, the personnel can control the operation of the oil exhaust fan through the operating interface 19 or the application of related temperature measurement of the cooking area.

It is worth noting that, in one embodiment, the user can control the working state of the range hood 1 through the operating interface 19, for example, can input a smart cooking activation signal to the control circuit 10 through the operating interface 19. The control circuit 10 can enter a smart cooking mode according to the smart cooking start signal. The smart cooking mode described here means that the control circuit 10 reads an electronic recipe from the storage circuit 18 according to the user's selection, and controls the display circuit 16 to divide the electronic recipe into multiple cooking schedules for execution in sequence, through an interactive display method Smoothly guide the staff to complete the cooking of the ingredients for each stage of the cooking schedule in the electronic recipe. The interaction described here is not just a simple display. The range hood 1 can use the temperature judgment result to confirm whether the user has actually performed the cooking action specified in the interactive display, and use the temperature detection result as whether to proceed to the next step. Interactive display of cooking schedule.

In one embodiment, the execution of a cooking schedule means that the control circuit 10 controls the display circuit 16 to display a cooking guidance screen to guide the user to make a corresponding cooking action on the gas stove 3 according to the cooking guidance screen, and then the control circuit 10 Control the thermal image detection circuit 14 to perform temperature detection, and determine whether the current cooking schedule of this stage is completed according to the temperature detection result, if it is completed, proceed to the execution of the next stage of the cooking schedule, and until all the cooking schedules are completed After being executed, the interactive display guide production of the electronic recipe is completed.

In one embodiment, when the cooking schedule of this segment cannot be completed continuously and exceeds a preset time, the control circuit 10 can also output a prompt message through the display circuit 16 to inform the personnel that the current cooking schedule of this segment may not be completed. For example, the prompt information is related content such as the pot has not been placed, the food has not been placed, the food has not been turned over, the temperature of the target has changed abnormally, and so on, but the present invention is not limited to this.

In addition, it should be noted that each circuit configuration in the control circuit 10 can be configured through hardware circuits with firmware or software, and the hardware circuits in the control circuit 10 can be application-specific integrated circuits (ASIC), and can be programmed on site. One or any combination of gate array (FPGA) or system-on-a-chip (SOC).

[Embodiment of interactive display method of range hood]

In conjunction with FIG. 1 and please refer to FIG. 4, FIG. 4 is an interactive display flowchart of the range hood according to an embodiment of the present invention. The process shown in FIG. 4 can, for example, cooperate with the architecture of FIGS. 1 and 2 to perform the following steps.

In step S401, the range hood 1 first downloads the electronic recipe. Specifically, the range hood 1 can download electronic recipes from external electronic devices, memory cards or cloud servers through wired or wireless transmission via the transmission interface 17, and store the electronic recipes in the storage circuit 18 for use The user can subsequently select an electronic recipe from the storage circuit 18 as a viewing basis for subsequent cooking through the manipulation of the operating interface 19.

In step S403, the smart cooking mode is activated. In this step, the user can input a smart cooking signal to the control circuit through the operating interface 19 of the range hood 1, and the control circuit 10 can execute the interactive display function of activating the smart cooking mode according to the electronic recipe selected by the user.

In step S405, the electronic recipe is divided into multiple cooking schedules and executed through the display circuit 16 in sequence. In an embodiment, the electronic recipe is composed of a plurality of cooking schedules in sequence according to time. The control circuit 10 further presents each cooking schedule to the user in an interactive display mode to guide the user in During each stage of the cooking schedule, the ingredients are cooked by watching.

In step S407, a cooking guidance screen is displayed. In this step, the control circuit 10 controls the display circuit 16 to display a cooking guide screen for people to directly watch the cooking method of the electronic recipe. The cooking guide screen can be any combination of images, pictures, text or symbols. In one embodiment, while the display circuit 16 is displaying the cooking guide screen, the range hood 1 can also guide the user to complete the cooking schedule at this stage through a voice broadcast, and the content of the voice broadcast may be related to the cooking guide screen. Content.

In step S409, the temperature is detected. In this step, the control circuit 10 controls the thermal image detection circuit 14 to detect the temperature of the target, and the target can be specific pots, ingredients, or other cooking-related utensils in the current cooking schedule. Since the user will relatively perform a cooking action according to the cooking guidance screen in step S407, the temperature of the target object can be detected by executing step S409. In one embodiment, the cooking action is, for example, any combination of placing pots, placing ingredients, turning over ingredients, and switching between large and small fires of a gas stove.

In step S411, it is determined whether the cooking schedule of this stage is completed. If step S411 is determined to be YES, step S413 is executed, and if step S411 is determined to be otherwise, step S409 is executed.

In step S413, it is determined whether it is the last stage of the cooking schedule, and if the determination in step S413 is yes, the smart cooking mode is ended, which means that the cooker hood 1 has completed the entire guidance process of the electronic recipe through the interactive display guidance method. If step S413 is judged to be correct, step S415 is executed.

In step S415, execute the next cooking schedule, and return to step S405 to continue execution. In addition, it is worth noting that when the temperature detected in step S409 is abnormal, the display circuit 16 can display a warning signal according to the control of the control circuit 10 or the control circuit can control a speaker to output a warning signal to remind personnel Note that the current cooking temperature may be abnormally high or abnormally low.

[Example of cooking schedule]

In conjunction with FIGS. 1 and 2 and please refer to FIG. 5, FIG. 5 is a flow chart of the cooking schedule detection of the range hood according to the embodiment of the present invention. The process shown in FIG. 5 can, for example, cooperate with the architecture of FIG. 1 and FIG. 2 to perform the following steps, and FIG. 5 mainly provides further explanation for the specific implementation of step S411 in FIG. 4.

In step S501, the detection result of the thermal image detection circuit 14 is obtained. The control circuit 10 of the range hood 1 obtains the data of the thermal image frame through the thermal image detection circuit 14, and learns the temperature change through the thermal image frame data.

In step S503, the detection result is analyzed to obtain the actual temperature of the target. The analysis described here can learn the actual temperature of the target according to the temperature distribution and changes after heating one or more thermal image frames. The target here is to analyze the temperature of the pot or the temperature of the ingredients in the pot according to the needs of the cooking schedule.

In step S505, it is determined whether the actual temperature change meets a preset condition. In one embodiment, the preset condition is, for example, a preset cooking temperature, that is, when the actual temperature of the target is equal to the cooking temperature, it is determined that the actual temperature change meets the preset condition. In another embodiment, the preset condition is, for example, a preset cooking temperature and a preset time, that is, when the actual temperature of the target is equal to the cooking temperature and maintained for more than a preset time, it is determined that the actual temperature change has met the preset time. condition. In another embodiment, the preset condition may also be a plurality of preset cooking temperatures, that is, when the actual temperature of the target object drops from the first cooking temperature to the second cooking temperature and then rises back to the third cooking temperature, It is determined that the actual temperature change has met the preset conditions, and this multiple cooking temperature settings can reflect the relative temperature change of the food (such as fish) from the first side of the cooked food to the second side of the food. However, the preset conditions here are only examples and are not used to limit the present invention.

In addition, in an embodiment, when it is determined that the actual temperature of the target object is greater than the cooking temperature in any stage of the cooking schedule, the control circuit may also control the display circuit 16 to display a warning signal or a speaker to output a warning signal. And the control circuit 10 can further output a heat adjustment signal after outputting the warning signal. The heat adjustment signal can be output through the display circuit 16. The heat adjustment signal can be a temperature increase signal or a temperature decrease signal for the user to pass through After the display circuit 16 learns the heat adjustment signal, it can further determine whether the heat adjustment signal is a temperature increase signal or a temperature decrease signal, and then the firepower of the gas stove 3 can be adjusted correspondingly, so as to make the actual temperature of the target object. When it can be equal to the cooking temperature.

In one embodiment, the control circuit can further output a heat adjustment signal to the gas stove 3 after outputting the warning signal. The heat adjustment signal can be a temperature increase signal or a temperature decrease signal, so that the firepower of the gas stove 3 can be adjusted. The corresponding adjustment is made according to the received heat adjustment signal, so that the actual temperature of the target object can be equal to the cooking temperature.

When step S505 is judged to be no, return to step S501 to continue execution.

When step S505 is determined to be YES, step S507 is executed to complete the cooking schedule of this stage.

Please refer to FIG. 6. FIG. 6 is a temperature detection waveform diagram of an electronic recipe execution provided by an embodiment of the present invention. Figure 6 shows that when an electronic recipe is downloaded and executed, the electronic recipe is divided into multiple cooking schedules in sequence. As shown in Figure 6, it is divided into 3 cooking schedules. The first cooking schedule is time 0 to T1, and the second The cooking schedule is from time T1 to T2, and the third cooking schedule is from time T2 to T3. When the first cooking schedule is executed, the first cooking guide screen is displayed through the display circuit 16 and the preset condition is the first cooking temperature C1. When the second cooking schedule is executed, the second cooking guide screen is displayed through the display circuit 16 and the preset condition is the second cooking temperature C2. When the third cooking schedule is executed, the third cooking guidance screen is displayed through the display circuit 16 and the preset condition is the third cooking temperature C3.

An example of the execution method of the electronic recipe in Figure 6 is as follows. When the first cooking schedule is executed, the display circuit 16 displays the first cooking guidance screen of "please place the pots to preheat with high heat", so the staff is watching the first cooking guidance screen After that, the pot can be placed on the gas stove 3 according to the content of the guide, and the high fire of the gas stove can be turned on to preheat the pot. Then the thermal image detection circuit 14 of the range hood 1 can detect the actual temperature of the cookware, and the range hood 1 judges whether the actual temperature of the cookware reaches the first cooking temperature C1 according to the temperature detection result of the thermal image detection circuit 14 . When the judgment result is that the actual temperature of the pot has not reached the first cooking temperature C1, the first cooking schedule will continue to be executed without stopping. When the judgment result is that the actual temperature of the pot has reached the first cooking temperature C1, it means that the first cooking schedule has been executed, and the second cooking schedule will continue to be executed.

When the second cooking schedule is executed, the second cooking guidance screen of "please place the ingredients in the pot to heat" is displayed through the display circuit 16. Therefore, after viewing the second cooking guidance screen, the personnel can place the ingredients in the pot according to the guidance content Heated inside. Then the thermal image detection circuit 14 of the range hood 1 can detect the actual temperature of the ingredients in the pot, and the range hood 1 judges whether the actual temperature of the ingredients reaches the second cooking based on the temperature detection result of the thermal image detection circuit 14 Temperature C2. When the judgment result is that the actual temperature of the ingredients has not reached the second cooking temperature C2, the second cooking schedule will continue to be executed without stopping. When the judgment result is that the actual temperature of the ingredients has reached the second cooking temperature C2, it means that the second cooking schedule has been executed, and the third cooking schedule will continue to be executed.

When the third cooking schedule is executed, the third cooking guide screen of "Please turn to low heat" is displayed through the display circuit 16. Therefore, after watching the third cooking guide screen, the personnel can turn the gas stove 3 into a low fire for heating according to the guidance . Then the thermal image detection circuit 14 of the range hood 1 can detect the actual temperature of the ingredients in the pot, and the range hood 1 judges whether the actual temperature of the ingredients reaches the third dish according to the temperature detection result of the thermal image detection circuit 14 Temperature C3. When the judgment result is that the actual temperature of the ingredients has not reached the third cooking temperature C3, the third cooking schedule will continue to be executed without stopping. When the judgment result is that the actual temperature of the ingredients has reached the third cooking temperature C3, it means that the third cooking schedule has been executed, and the display circuit 16 of the range hood 1 can further display that the low fire is turned off to complete this electronic recipe. The dishes are cooked.

As shown in FIG. 6, the first cooking temperature is greater than the second cooking temperature, and the second cooking temperature is greater than the third cooking temperature. Moreover, the temperature change shown in the electronic recipe shown in FIG. 6 is only an example. The execution method of each cooking schedule in the electronic recipe will have a corresponding electronic recipe for different ingredients, and the present invention is not limited to this.

Please refer to FIG. 7, which is a schematic diagram of temperature detection and display content interaction according to an embodiment of the invention. FIG. 7 shows an example of how the thermal image detection circuit 14 and the display circuit 16 of the range hood 1 can interact with each other to guide the user to complete the cooking. The temperature measurement result shown in FIG. 7 is that the control circuit 10 of the range hood 1 relatively judges the temperature change of the target according to the temperature detection result of the thermal image detection circuit 14. The display content in FIG. 7 is that the control circuit 10 of the range hood 1 controls the display circuit 16 to display the corresponding cooking guide screen according to the temperature detection result of the thermal image detection circuit 14. As shown in step S701, the control circuit 10 controls the thermal image detection circuit 14 to determine the temperature of the pot, and the control circuit 10 controls the display circuit 16 to display the cooking shown in step S703 according to the temperature detection result of the thermal image detection circuit 14 Boot screen. The real-time temperature of each pot can be obtained by displaying the content in step S703. For example, the current monitoring temperature of the left furnace temperature is 140°C, the setting target of the left furnace temperature is 180°C, and the current monitoring temperature of the right furnace temperature It is 60°C, and the set target of the right furnace temperature is 160°C. In addition, the cooking guide screen here is to display the common left and right oven temperature display, but the present invention is not limited to this. The range hood 1 can know how many heating devices there are based on the detection result of the thermal image detection circuit 14. The stove mouth, and the cooking guide screen corresponding to the number of stove mouths can be displayed relative to the shadow.

In step S705, the control circuit 10 continues to control the thermal image detection circuit 14 to discriminate the temperature of the cookware and until the temperature of the cookware reaches the set temperature (that is, 180°C), the control circuit 10 according to the thermal image detection circuit 14 The temperature detection result controls the display circuit 16 to display the cooking guidance screen shown in step S707. By displaying the content in step S707, you can know the real-time temperature of each pot. For example, when the temperature of the left oven has reached 180°C, the electric display circuit 16 will be further controlled to display "Monitoring temperature reaches the set target temperature, please turn to low heat and put The cooking guide screen of "Ingredients". Therefore, through the display of step S707, the personnel can know that the ingredients to be cooked can be put into the pot on the left stove at this point in time, and the left stove of the gas stove 3 is controlled to turn into a low fire.

In step S709, if the control circuit 10 controls the thermal image detection circuit 14 to determine the temperature of the food material and the result is that one side of the food material is cooked, the control circuit 10 controls the display circuit 16 to display as follows according to the temperature detection result of the thermal image detection circuit 14 The cooking guidance screen shown in step S711. In step S711, a cooking guidance screen is displayed indicating that "the ingredients at the left oven temperature are cooked, please turn them over". Therefore, through the display in step S711, the personnel can know that the ingredients in the left stove pot can be turned over at this point in time.

In step S713, if the control circuit 10 controls the thermal image detection circuit 14 to determine the temperature of the food material as the result is found to be cooked, the control circuit 10 controls the display circuit 16 to display the display as shown in step S715 according to the temperature detection result of the thermal image detection circuit 14 The cooking guide screen shown. In step S715, a cooking guidance screen is displayed that displays "the left oven temperature ingredients are cooked, please turn off the heat and start the pot". Therefore, through the display in step S715, the personnel can know that the left furnace of the gas furnace 3 can be controlled to turn off at this point in time.

In step S717, if the control circuit 10 controls the thermal image detection circuit 14 to determine that the temperature of the food is abnormally high, the control circuit 10 controls the display circuit 16 to display the display according to the temperature detection result of the thermal image detection circuit 14 as in step S719 The cooking guide screen shown. In step S719, a cooking guidance screen that displays "the left furnace temperature monitoring temperature is found to be abnormal, please turn off the fire" is displayed. Therefore, through the display in step S719, the personnel can know that the left furnace of the gas furnace 3 can be controlled to turn off at this point in time.

In step S721, if the control circuit 10 controls the thermal image detection circuit 14 to determine that the temperature of the food is monitored and the temperature is higher than the set target temperature, the control circuit 10 controls the display circuit 16 according to the temperature detection result of the thermal image detection circuit 14 The cooking guidance screen shown in step S723 is displayed. In step S723, a cooking guidance screen is displayed that displays "The monitoring temperature of the left oven temperature is higher than the set target temperature, please turn to low heat". Therefore, through the display in step S723, the personnel can know that the left furnace of the gas furnace 3 can be controlled to turn to a low fire at this point in time.

Therefore, FIG. 7 has clearly illustrated how the range hood 1 activates and executes a smart cooking mode according to an electronic recipe, and the control display circuit 16 divides the electronic recipe into multiple cooking schedules for execution in sequence. For example, S701 and S703 in FIG. 7 belong to the cooking schedule of the pottery discrimination. S705 and S707 in FIG. 7 belong to the cooking schedule of cooking start. S709, S711, S13, and S715 in FIG. 7 belong to the cooking schedule of the cooking process. S717, S719, S21, and S723 in Fig. 7 belong to the cooking schedule of abnormally over-temperature. In other words, the range hood 1 of the present invention can easily guide personnel to complete cooking through interactive temperature detection and display methods.

[Effects of Examples]

In summary, the range hood with interactive display and the interactive display method provided by the embodiments of the present invention can accurately know the temperature change of the target through the result of thermal image detection, and the display is displayed when the electronic recipe is executed. The circuit displays an easy-to-understand cooking guide screen, so that people who are not good at cooking can easily complete the cooking of various ingredients, and effectively improve the safety of the cooking process and effectively avoid the waste of ingredients.

The content provided above is only the preferred and feasible embodiments of the present invention, and does not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the description and schematic content of the present invention are included in the application of the present invention. Within the scope of the patent.

1: Range hood 10: Control circuit 12: Exhaust circuit 121: drive circuit 123: fan circuit 14: Thermal image detection circuit 141: Thermal image detector 16: display circuit 17: Transmission interface 18: storage circuit 19: Operation interface 2: hotspot 3: Gas stove S401: Download electronic recipes S403: Start and execute smart cooking mode S405: Divide the electronic recipe into multiple cooking schedules and execute them through the display circuit in sequence S407: Display the cooking guide screen S409: Detect temperature S411: This section of the cooking schedule is completed S413: The last paragraph S415: Execute the next cooking schedule S501: Obtain the detection result of the thermal image detection circuit S503: Analyze the detection result to get the actual temperature of the target S505: The actual temperature change meets the preset conditions S507: Complete this cooking schedule T1, T2, T3: time C1: The first cooking temperature C2: Second cooking temperature C3: The third cooking temperature S701: Discrimination of pot temperature S705: Heat to set temperature S709: Found that the ingredients have been cooked on one side S713: The ingredients are cooked S717: Monitoring found abnormal high temperature S721: The monitored temperature is higher than the set target temperature S703, S707, S711, S715, S719, S723: cooking guide screen

Fig. 1 is a schematic diagram of a range hood with interactive display provided by an embodiment of the present invention.

Fig. 2 is a functional block diagram of a range hood with interactive display provided by an embodiment of the present invention.

Fig. 3A is a schematic diagram of a thermal image screen according to an embodiment of the present invention.

FIG. 3B is a schematic diagram of a thermal image screen according to an embodiment of the present invention.

FIG. 3C is a schematic diagram of a thermal image screen according to an embodiment of the present invention.

Fig. 4 is an interactive display flow chart of the range hood provided by the embodiment of the present invention.

Fig. 5 is a flow chart of the cooking schedule detection of the range hood provided by the embodiment of the present invention.

FIG. 6 is a temperature detection waveform diagram of an electronic recipe execution provided by an embodiment of the present invention.

FIG. 7 is a schematic diagram of the interaction between temperature detection and display content according to an embodiment of the present invention.

1: Range hood

10: Control circuit

12: Exhaust circuit

121: drive circuit

123: fan circuit

14: Thermal image detection circuit

141: Thermal image detector

16: display circuit

17: Transmission interface

18: storage circuit

19: Operation interface

Claims (10)

A range hood with interactive display, suitable for detecting the thermal image distribution of a heating device, including: A display circuit; A thermal image detection circuit with a plurality of thermal image detectors to obtain a temperature plane distribution data of the heating device, wherein the temperature plane distribution data includes multiple temperature detection values, and any one of the temperature detection values Is the temperature detection result of the image detector; An exhaust circuit; and A control circuit electrically connected to the thermal image detection circuit, the exhaust circuit and the display circuit; When the control circuit activates and executes a smart cooking mode according to an electronic recipe, it controls the display circuit to divide the electronic recipe into multiple cooking schedules for execution in sequence; The control circuit controls the display circuit to display a corresponding cooking guidance screen when each segment of the cooking schedule is executed, so that the user can make a corresponding cooking action on the heating device according to the cooking guidance screen. The control circuit uses the detection result of the thermal image detection circuit as a basis for whether to proceed to the next stage of the cooking schedule. For example, the range hood of claim 1, wherein the control circuit obtains the electronic recipe through a transmission interface, and the control circuit activates the smart cooking mode according to the electronic recipe, wherein the transmission interface is a wired transmission interface or a wireless transmission interface. For example, in the range hood of request 2, a cooking temperature is correspondingly set in each stage of the cooking schedule, and an actual temperature of a target in each stage of the cooking schedule is detected through the thermal image detection circuit. When the control circuit determines that the actual temperature is equal to the cooking temperature in any stage of the cooking schedule, the control circuit executes the next stage of the cooking schedule, and executes it in this way until the last stage of the cooking schedule. For example, the range hood of claim 3, wherein the control circuit determines that the actual temperature is greater than the cooking temperature in any stage of the cooking schedule, the control circuit outputs a warning signal, and the warning signal is a sound signal or a display signal, The cooking guide screen is one or a combination of images, pictures, text, or symbols. For example, the range hood of claim 3, wherein the target object is a pot or food, and when it is determined that the actual temperature is greater than the cooking temperature in any stage of the cooking schedule, a heat adjustment signal is output and displayed on the display circuit, To guide the user to adjust the heating device to make the actual temperature of the target equal to the cooking temperature. An interactive display method for a range hood is suitable for detecting the thermal image distribution of a heating device. The range hood has a thermal image detection circuit, and the thermal image detection circuit has a plurality of thermal image detectors to obtain A temperature plane distribution data of the heating device, wherein the temperature plane distribution data includes multiple temperature detection values, and any one of the temperature detection values is the temperature detection result of the image detector, and the method includes: When a smart cooking mode is activated according to an electronic recipe, controlling a display circuit of the range hood to sequentially divide the electronic recipe into multiple cooking schedules for execution; When each segment of the cooking schedule is executed, the display circuit is controlled to display a corresponding cooking guidance screen, so that the user can perform a corresponding cooking action on the heating device according to the cooking guidance screen; and The detection result of the thermal image detection circuit is used as a basis for whether to proceed to the next stage of the cooking schedule. For example, the interactive display method of claim 6, including: The electronic recipe is obtained through a transmission interface, and the smart cooking mode is activated according to the electronic recipe, wherein the transmission interface is a wired transmission interface or a wireless transmission interface. For example, the interactive display method of claim 7 further includes: Set a corresponding cooking temperature in each section of the cooking schedule; The thermal image detection circuit detects an actual temperature of a target in each stage of the cooking schedule, and when it is determined that the actual temperature is equal to the cooking temperature in any stage of the cooking schedule, execute the next stage of the cooking schedule And execute in this way until the last stage of the cooking schedule. For example, the interactive display method of claim 8, further including: When it is determined in any stage of the cooking schedule that the actual temperature is greater than the cooking temperature, a warning signal is output and displayed on the display circuit. For example, the interactive display method of claim 8, further including: When it is determined in any stage of the cooking schedule that the actual temperature is greater than the cooking temperature, a heat adjustment signal is output and displayed on the display circuit to guide the user to adjust the heating device so that the actual temperature of the target is equal to the cooking temperature.

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