TW202037852A - Range hood system and control method thereof - Google Patents

Abstract

The present disclosure provides a range hood system including a range hood, a camera and a controller. The range hood includes a motor. The camera is configured to shoot an image. The controller is signally connected to the range hood and the camera, and includes an image analyzing module and a speed controlling module. The image analyzing module can analyze at least one of a smoke and a user hand posture of the image to generate a speed command. The speed controlling module adjusts a speed of the motor according to the speed command. Therefore, through analyzing the image from the camera, the speed level of the range hood can be automatically adjusted, and the usage convenience is increased.

Description

Range hood system and its control method

The invention relates to a range hood system and a control method thereof, and in particular to a range hood system and a control method thereof that can automatically adjust the number of smoke exhaust sections.

Generally speaking, because the cooking fume is easily harmful to the human body, there are many range hoods in the kitchen, and the cooking fume can be exhausted to the outdoors through the action of the range hood.

Conventional range hoods are often equipped with switches to switch the number of smoke exhaust sections, and the user presses the switch to adjust the number of smoke exhaust sections according to the conditions of use. However, when cooking, both hands need to control the spatula separately, which is unfavorable for the user to manually switch the number of smoke exhaust sections.

In order to solve this problem, some industry hoods have developed a range hood that can automatically adjust the number of smoke-exhaust sections. It automatically adjusts the number of smoke-exhaust sections by detecting the temperature of the oil fume. However, the temperature in the air is affected by many factors, not all of it. Therefore, this method of automatically adjusting the number of smoke exhaust sections cannot be adjusted according to the real oily smoke condition, but has its limitations.

In view of this, how to effectively improve the automatic adjustment of the number of smoke exhaust sections of the range hood has become the goal of the relevant industry.

The invention provides a range hood system and a control method thereof. Through the image taken by a camera, the number of smoke exhaust sections of the range hood can be adjusted correspondingly, which has the advantage of convenient use.

An embodiment according to one aspect of the present invention provides a range hood system, which includes a range hood, a camera, and a controller. The range hood includes a motor; the camera is used to obtain an image; and the controller signal connection The range hood and the camera include an image analysis module and a rotation speed control module. The image analysis module analyzes at least one of a user gesture and an oil smoke in the image to provide a rotation speed command; the rotation speed control module The signal is connected to the motor, and the speed of the motor is adjusted according to the speed command.

In this way, one of the user's hand movement and the cooking fume condition can be detected through the camera, and the motor speed can be adjusted correspondingly to change the number of fume exhaust sections of the range hood.

According to the multiple embodiments of the aforementioned range hood system, the controller may further include a wireless communication module for signal connection to a cooking stove, the image analysis module analyzes the cooking fume to provide a stove power command, and the wireless communication module controls the stove The force command is sent to the cooking stove. Alternatively, the aforementioned range hood system may further include an atomizing spray device for spraying an atomized liquid. The atomizing spray device is signaled to the controller and is opened and closed by the controller. Alternatively, the aforementioned range hood system may further include a lighting device whose signal is connected to the controller and is opened and closed by the controller.

Another embodiment according to an aspect of the present invention provides a range hood system, which includes a range hood, a camera, and a controller. The range hood includes a motor; the camera detects a kitchen environment to obtain an image ; The controller signal is connected to the range hood and the camera and includes an image analysis module and a speed control module. The image analysis module analyzes and corrects an oil smoke in the image to generate a speed command; the speed control module signal is connected to the motor , Adjust the speed of the motor according to the speed command.

According to the multiple embodiments of the aforementioned range hood system, the controller may further include a wireless communication module for signal connection to a cooking stove, the image analysis module analyzes the cooking fume to provide a stove power command, and the wireless communication module controls the stove The force command is sent to the cooking stove. Alternatively, the aforementioned range hood system may further include an atomizing spray device for spraying an atomized liquid. The atomizing spray device is signaled to the controller and is opened and closed by the controller. Alternatively, the aforementioned range hood system may further include a lighting device whose signal is connected to the controller and is opened and closed by the controller.

An embodiment according to another aspect of the present invention provides a control method of a range hood system, which includes a detection step, an image analysis step, and a rotation speed adjustment step. The detection step is to detect a kitchen environment with a camera to provide an image; the image analysis step is to provide a controller signal to connect to the camera, and the controller analyzes and corrects an oil smoke in the image to generate a rotation speed command; the rotation speed adjustment step is , The controller adjusts the speed of a motor of a range hood according to the speed command.

According to the plural embodiments of the control method of the range hood system, in the image analysis step, the controller can analyze a user gesture in the image to generate another rotation speed command; in the rotation speed adjustment step, control The device adjusts the rotation speed of the motor of the range hood with the aforementioned another rotation speed command, which can be to analyze a waving direction of the user's gesture to generate the aforementioned another rotation speed command, or to analyze the number of fingers of the user's gesture to generate the aforementioned another Speed command.

According to the plural embodiments of the control method of the range hood system, it may further include a furnace power communication step. In the image analysis step, the controller analyzes the oil smoke in the image to generate a furnace power command. In the furnace power communication step, A wireless communication module is used to transmit the stove power command to a cooking stove.

100‧‧‧ Range hood system

110‧‧‧ Range hood

111‧‧‧Motor

120‧‧‧Camera

130‧‧‧Atomization spray device

140‧‧‧Controller

141‧‧‧Image Analysis Module

142‧‧‧Speed Control Module

143‧‧‧Wireless communication module

150‧‧‧Lighting installation

160‧‧‧Induction device

200‧‧‧Cooking stove

300‧‧‧ Range hood system control method

310‧‧‧Detection Step

320‧‧‧Image analysis steps

330‧‧‧Speed adjustment steps

340‧‧‧ Furnace force communication procedure

FIG. 1 is a schematic diagram of the architecture of a range hood system according to an embodiment of the present invention; and FIG. 2 is a flowchart of steps of a control method of a range hood system according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. For the sake of clarity, many practical details will be explained in the following description. However, the reader should understand that these practical details should not be used to limit the present invention. That is to say, in some embodiments of the present invention, these practical details are unnecessary. In addition, for the sake of simplification of the drawings, some conventionally used structures and elements will be drawn in a simple schematic manner in the drawings; and repeated elements may be represented by the same number or similar numbers.

In addition, when a component (or mechanism or module, etc.) is “connected”, “configured” or “coupled” to another component in this document, it can mean that the component is directly connected, directly disposed, or directly coupled to another component It can also mean that an element is indirectly connected, indirectly disposed, or indirectly coupled to another element, that is, there are other elements between the element and another element. When it is clearly stated that a certain element is "directly connected", "directly arranged" or "directly coupled" to another element, it means that no other element is between the element and another element. The terms first, second, third, etc. are only used to describe different elements or components, and there are no restrictions on the elements/components themselves. Therefore, the first element/component can also be referred to as the second element/component. And the combination of components/components/mechanisms/modules in this article is not a combination of general well-known, conventional or conventional in this field. It cannot be judged whether the combination relationship is based on whether the component/component/mechanism/module itself is conventional It can be easily completed by ordinary knowledgeable persons in the technical field.

Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of a range hood system 100 according to an embodiment of the present invention. The range hood system 100 includes a range hood 110, a camera 120 and a controller 140. The range hood 110 includes a motor 111; the camera 120 is used to obtain an image; the controller 140 signals the range hood 110 and the camera 120. It also includes an image analysis module 141 and a speed control module 142. The image analysis module 141 analyzes at least one of a user gesture and a lampblack in the image to provide a speed command; the speed control module 142 signal Connect the motor 111 and adjust the speed of the motor 111 according to the speed command.

In this way, one of the user's hand movement and the oily smoke condition during cooking can be detected through the camera 120, and the rotation speed of the motor 111 can be adjusted accordingly In order to change the number of smoke exhaust sections of the range hood 110, it has the advantage of convenient use. The details of the range hood system 100 will be detailed later.

The range hood 110 is provided with a motor 111 inside, and the oil fume generated during cooking can be sucked into the range hood 110 by the rotation of the motor 111, and then the oil fume is removed by the exhaust pipe. The controller 140 may be arranged inside the range hood 110, and the rotation speed control module 142 of the controller 140 may open and close the motor 111 and adjust the rotation speed of the motor 111 to change the number of smoke exhaust sections of the range hood 110. The structure and principle of the range hood 110 are known and are not the focus or technical improvement of this case, and will not be repeated here.

The camera 120 can be set up at any position in a kitchen environment, and can shoot oily smoke or users in the kitchen environment to obtain an image. The number of the camera 120 may be one or more, and the image captured by the camera 120 may be transmitted to the controller 140 in a wired or wireless manner, and received and analyzed by the controller 140. The above-mentioned images can be continuous images produced by continuous recording, and are not limited to a single still image.

Since the image captured by the camera 120 contains oily smoke or the user, the image analysis module 141 can issue a speed command based on the oily smoke or the user's gesture or both, so that the speed control module 142 can adjust the motor 111 Rotating speed.

In one embodiment, the image analysis module analyzes the oil smoke in the image, which can determine the size of the oil smoke in the image according to the proportion and concentration of the oil smoke in the frame of the image, or the flow speed of the oil smoke in the continuous frame, and Correspondingly give a speed command. For example, oil fume can be divided into three types: large, medium, and small. Three speed commands are given to make the motor operate at three speeds: large, medium and small. Or after related calculations, the motor is automatically set at the most suitable output speed, including the above but not limited to this.

In one embodiment, the image analysis module can analyze the user's gesture in the image to issue a corresponding rotation speed command, for example, to determine a direction of the user's gesture, for example, when the hand is swiped from the right to the left, the motor speeds up. On the contrary, the speed of the motor will decrease, and the direction of increasing speed can be changed from left to right, top to bottom or bottom to top. For another example, the number of fingers in the user's gesture can be judged to issue the corresponding rotation speed command. For example, one finger means one speed, two fingers means two speed, and so on, all five fingers are opened at the highest speed. When the user gesture is When fisting, it means shutting down and entering the post-cleaning mode, including the above but not limited to this.

If the image analysis module can adjust the rotation speed of the motor according to the oil smoke and the user's gestures at the same time, it can first give a rotation speed command according to the oil smoke in the image, and the motor runs according to the rotation speed command. It is accustomed to make adjustments. At this time, another speed command can be issued by the user's gesture to adjust the motor speed, which can better meet the needs of the user.

Preferably, the image analysis module 141 can analyze and correct a lampblack in the image to generate a rotation speed command. Since oil fume is generated in the kitchen environment, which is likely to cause lens contamination of the camera 120, the image analysis module 141 can be corrected to make the analyzed oil fume conform to the actual situation. For example, when the camera 120 is initially installed in the kitchen environment, an initial image is saved, and each time the range hood 110 operates, a first image is obtained, and the first image is compared with the initial image. It can perform difference compensation or adjustment of the background value to avoid misjudgment caused by lens dirt.

In the embodiment of FIG. 1, the controller 140 may further include a wireless communication module 143 for signal connection to a cooking stove 200, the image analysis module 141 analyzes the cooking fume to provide a stove power command, and the wireless communication module 143 The furnace power command is transmitted to the cooking furnace 200.

For example, the image analysis module 141 can analyze the flow speed, concentration, or color of the cooking fume. After correlation calculations, if it is determined that the cooking fume is generated in an abnormal cooking state, the wireless communication module 143 will send it to the oven. Force instructions to notify the cooking stove 200 to turn off the gas to avoid the danger caused by empty burning or abnormal cooking. More preferably, the range hood 110 will operate at the highest speed at this time to speed up the removal of the range hood.

In one embodiment, the action of the cooking stove can also be related to the opening and output speed of the range hood. For example, when the cooking stove is turned on, the range hood is also turned on at the same time, and the output speed of the range hood corresponds to the fire power or cooking intensity of the cooking stove. For example, high fire or high cooking intensity corresponds to the high-speed operation of the range hood, etc. , And does not affect the function of the range hood to adjust the number of smoke sections according to the lampblack or user gestures.

In addition, the range hood system 100 may further include a lighting device 150 whose signal is connected to the controller 140 and is opened and closed by the controller 140. The range hood system 100 can be further provided with a sensing device 160 whose signal is connected to the controller 140. When the sensing device 160 senses a user, it sends a signal to the controller 140 to correspondingly turn on the lighting device 150 to produce a welcome effect.

In addition, the range hood system 100 may further include an atomizing spray device 130 for spraying an atomized liquid. The atomizing spray device 130 is signally connected to the controller 140 and is opened and closed by the controller 140. When the range hood system 100 enters When cleaning, the atomization spray device 130 can be set to spray fragrance or deodorant to purify the kitchen environment to reduce the fume smell generated after cooking, including but not limited to this.

Please refer to FIG. 2 and also refer to FIG. 1. FIG. 2 is a flowchart of a method 300 for controlling a range hood system according to another embodiment of the present invention. The control method 300 of the range hood system includes a detection step 310, an image analysis step 320, and a rotation speed adjustment step 330.

In the detecting step 310, a camera 120 detects a kitchen environment to provide an image. In the image analysis step 320, a controller 140 is provided to connect to the camera 120. The controller 140 analyzes and corrects a lampblack in the image to generate a rotation speed command. In the rotation speed adjustment step 330, the controller 140 adjusts the rotation speed of a motor 111 of a range hood 110 according to the rotation speed command.

And in the image analysis step 320, the controller 140 can analyze a user gesture in the image to generate another rotation speed command; and in the rotation speed adjustment step 330, the controller adjusts the motor of the range hood with the aforementioned another rotation speed command The rotation speed may be analyzing a swipe direction of the user's gesture to generate the aforementioned another rotation speed command, or analyzing the number of fingers of the user's gesture to generate the aforementioned another rotation speed command.

The control method 300 of the range hood system may further include a furnace power communication step 340. In the image analysis step 320, the controller 140 analyzes the smoke in the image to generate a furnace power command. In the furnace power communication step 340, a wireless The communication module 143 transmits the stove power command to a cooking stove 200. The details are as described in the embodiment in Figure 1, and will not be repeated.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone who is familiar with this technique can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be subject to those defined in the attached patent scope.

100‧‧‧ Range hood system

110‧‧‧ Range hood

111‧‧‧Motor

120‧‧‧Camera

130‧‧‧Atomization spray device

140‧‧‧Controller

141‧‧‧Image Analysis Module

142‧‧‧Speed Control Module

143‧‧‧Wireless communication module

150‧‧‧Lighting installation

160‧‧‧Induction device

200‧‧‧Cooking stove

Claims (13)

A range hood system includes: a range hood including a motor; a camera for obtaining an image; and a controller, the signal is connected to the range hood and the camera and includes: an image analysis module, analysis At least one of a user gesture and a lampblack in the image provides a rotation speed command; and a rotation speed control module, which is connected to the motor with a signal, and adjusts the rotation speed of the motor according to the rotation speed command. For example, the range hood system described in item 1 of the scope of patent application, wherein the controller further includes a wireless communication module signal connected to a cooking stove, the image analysis module analyzes the cooking fume to provide a stove power command, the The wireless communication module transmits the stove power command to the cooking stove. The range hood system described in item 1 of the scope of patent application further includes: an atomizing spray device for spraying an atomized liquid, the atomizing spray device signal is connected to the controller and is opened and closed by the controller. The range hood system described in item 1 of the scope of patent application further includes: A lighting device, the signal is connected to the controller and is opened and closed by the controller. A range hood system includes: a range hood, including a motor; a camera, which detects a kitchen environment to obtain an image; and a controller, a signal connecting the range hood and the camera, and includes: an image analysis The module analyzes and corrects a lampblack in the image to generate a rotation speed command; and a rotation speed control module is connected to the motor with a signal, and adjusts the rotation speed of the motor according to the rotation speed command. For example, the range hood system described in item 5 of the scope of patent application, wherein the controller further includes a wireless communication module signal connected to a cooking stove, the image analysis module analyzes the cooking fume to provide a stove power command, the The wireless communication module transmits the stove power command to the cooking stove. The range hood system described in item 5 of the scope of patent application further includes: an atomizing spray device for spraying an atomized liquid, the atomizing spray device signal is connected to the controller and is opened and closed by the controller. For example, the range hood system described in item 5 of the scope of the patent application further includes: a lighting device whose signal is connected to the controller and is opened and closed by the controller. A control method for a range hood system, comprising: a detection step of detecting a kitchen environment with a camera to provide an image; an image analysis step of providing a controller signal to connect to the camera, and the controller analyzes and corrects the image An oil fume in the hood to generate a rotation speed command; and a rotation speed adjustment step in which the controller adjusts the rotation speed of a motor of a range hood according to the rotation speed command. According to the control method of the range hood system described in claim 9, wherein, in the image analysis step, the controller analyzes a user gesture in the image to generate another rotation speed command; and at the rotation speed In the adjusting step, the controller adjusts the rotation speed of the motor of the range hood according to the another rotation speed command. The range hood system control method as described in item 10 of the scope of patent application, wherein a wave direction of the user's gesture is analyzed to generate the other rotation speed command. The control method of the range hood system according to claim 10, wherein the number of a finger of the user's gesture is analyzed to generate the other rotation speed command. For example, the control method of the range hood system described in item 9 of the scope of patent application further includes a furnace power communication step. In the image analysis step, the controller analyzes the range hood in the image to generate a furnace power command. In the furnace power communication step, a wireless communication module transmits the furnace power command to a cooking furnace.

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