WO2019218685A1 - 一种具有食材采集功能的智能微波炉 - Google Patents

一种具有食材采集功能的智能微波炉 Download PDF

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Publication number
WO2019218685A1
WO2019218685A1 PCT/CN2018/124688 CN2018124688W WO2019218685A1 WO 2019218685 A1 WO2019218685 A1 WO 2019218685A1 CN 2018124688 W CN2018124688 W CN 2018124688W WO 2019218685 A1 WO2019218685 A1 WO 2019218685A1
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WIPO (PCT)
Prior art keywords
microwave oven
infrared
collecting device
smart microwave
oven according
Prior art date
Application number
PCT/CN2018/124688
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English (en)
French (fr)
Inventor
娄军
周晔
Original Assignee
上海达显智能科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201820719983.8U external-priority patent/CN208382259U/zh
Priority claimed from CN201822065690.5U external-priority patent/CN209512116U/zh
Application filed by 上海达显智能科技有限公司 filed Critical 上海达显智能科技有限公司
Publication of WO2019218685A1 publication Critical patent/WO2019218685A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/02—Stoves or ranges heated by electric energy using microwaves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices

Definitions

  • the invention relates to the technical field of microwave ovens, in particular to a smart microwave oven having a food material collecting function.
  • the intelligent control that is, to intelligently control the microwave oven, the first task is to collect the parameters of the ingredients in the microwave oven.
  • the existing equipment for collecting the parameters of the foodstuff in the microwave oven is a common temperature sensor and a common camera. Therefore, the existing collection equipment used in the microwave oven generally has the problem of low acquisition accuracy, taking the temperature as an example, in practical application.
  • a variety of ingredients can be placed in the microwave oven, and different ingredients need different holding utensils. For example, liquid ingredients need to be placed in a bowl or a cup, solid ingredients can be placed in a dish, etc., and the temperature is measured.
  • the present invention provides a smart microwave oven with a food material collecting function, which can solve the problem of poor temperature collection and image collection accuracy of the existing microwave oven, and is specifically realized by the following technical solutions.
  • a smart microwave oven with food collection capabilities including:
  • a housing having a receiving chamber for placing the food
  • An infrared temperature sensor is disposed at an intermediate position of a top wall of the interior of the accommodating cavity, and an infrared field of view of the infrared temperature sensor is projected on a surface of the foodstuff inside the accommodating cavity to measure a surface of the foodstuff inside the accommodating cavity temperature;
  • a marking position is displayed on the bottom of the accommodating chamber for prompting the correct placement position of the foodstuff.
  • the infrared field of view of the infrared temperature measuring sensor is projected into the appliance, and the appliance The wall is located outside the projection range of the infrared field of view of the infrared temperature sensor;
  • the infrared field of view of the infrared temperature sensor has a FOV viewing angle ranging from 3° to 60°.
  • the identification bit is an identification coil disposed at the bottom of the receiving cavity.
  • the range of the identification coil overlaps with the projection range of the infrared field of view of the infrared temperature sensor projected at the bottom of the accommodating chamber.
  • the method further includes an infrared indicator light installed in an intermediate position of the top wall of the interior of the accommodating cavity, the infrared indicator light emitting a red spot or aperture, and the red spot or aperture is struck At the bottom of the accommodating chamber, the marking position is a spot or an aperture of the infrared indicator light hitting the bottom of the accommodating chamber.
  • the infrared temperature sensor and the infrared indicator light are integrated structures.
  • the method further includes an acquisition device, the collection device is obliquely mounted on the outer casing, and the collection device is inclined toward a position in which the foodstuff is placed in the accommodation cavity, so that the collection device has a collection angle of view.
  • the plurality of photographing surfaces of the foodstuff are covered, and an image of the foodstuff inside the accommodating chamber is collected according to the plurality of photographing surfaces and the image is recognized.
  • the side wall of the outer casing, or the top of the outer casing or the rear of the outer casing is provided with a mounting hole for mounting the collecting device, and the mounting hole is inclined toward the inner cavity of the outer casing of the outer casing. After the collecting device is installed in the mounting hole, the collecting device is inclined toward the receiving cavity of the outer casing.
  • the collection device includes a housing, at least one layer of transparent temperature-insulating glass, and a camera;
  • the housing is provided with an inclined mounting portion, and the inclined mounting portion is received in the mounting hole when the mounting hole is mounted on the sidewall of the furnace chamber of the appliance. ;
  • the temperature-insulating glass is mounted on the inclined mounting portion;
  • the camera is mounted on the inclined mounting portion and is isolated from the interior of the housing of the housing by the temperature-insulating glass.
  • the temperature-insulating glass surface is coated with a thermal barrier coating.
  • the inclined mounting portion is provided with a window for accommodating the camera, the window extends toward a mounting side of the temperature-insulating glass, and the collecting device further includes a use with the temperature-insulating glass.
  • a first silicone sleeve and a second silicone sleeve for use with the camera the first silicone sleeve sleeves the temperature-insulating glass to an extension of the window
  • the inclined mounting portion accommodates the installation In the hole, the first silicone sleeve is in sealing contact with the inner wall of the mounting hole, the second silicone sleeve sleeves the camera in the window, and the second silicone sleeve and the window The inner wall is in sealing contact.
  • the collecting device further includes a control board for controlling the camera, and the tilt mounting portion is further provided with a mounting bracket on a mounting side of the camera, and the control board is mounted on the mounting bracket.
  • a heat sink is further included, and the heat sink is mounted on a side wall of the receiving chamber on the same side of the collecting device or mounted on the collecting device for dissipating heat from the collecting device.
  • the heat sink is an AC fan, a DC fan, or a blower.
  • the door body of the outer casing has at least three layers of glass.
  • the intermediate layer glass or/and the inner glass surface of the door body is coated with a thermal barrier coating.
  • the apparatus further includes an acquisition device, the collection device is obliquely mounted on the door body, and the collection device is inclined toward a position in which the foodstuff is placed in the accommodation cavity, so that the collection device is collected.
  • the viewing angle covers a plurality of photographing surfaces of the foodstuff, and images of the foodstuffs inside the accommodating chamber are collected according to the plurality of photographing surfaces and the images are recognized.
  • the door body of the outer casing includes a door frame support frame on which a plurality of layers of the glass are mounted, and at least two layers of glass are mounted on a side of the door frame support frame adjacent to the receiving cavity, and a side away from the receiving cavity is mounted.
  • the glazing, the collecting device is obliquely mounted on the door frame support frame.
  • the collecting device includes a camera, a mounting plate obliquely mounted with the door frame supporting frame, and a silicone pad; the mounting plate is provided with a through hole, and the mounting plate is adjacent to the side of the cavity through the The through hole is sleeved with the silicone pad, the mounting plate is mounted on a side away from the cavity, and the camera is sleeved in the silicone pad.
  • the touch display screen is further disposed on the door body or disposed on the top of the housing receiving cavity and directly above the door body.
  • a lighting device is further included, the lighting device being disposed within the receiving cavity.
  • a lighting device is further included, the lighting device being integrated with the camera to be assembled into an integrated structure.
  • the illumination device is an LED light group.
  • the structural design has the following advantages:
  • the infrared temperature sensor is used to detect the surface temperature of the food. Specifically, the infrared temperature sensor is installed in the middle position of the top wall inside the accommodating chamber, and the identification position is displayed at the bottom of the accommodating chamber to prompt the correct placement position of the food.
  • the infrared field of view of the infrared temperature sensor When the food material is placed in the marking position by the appliance, the infrared field of view of the infrared temperature sensor is projected into the appliance, and the wall of the appliance is outside the projection range of the infrared field of view of the infrared temperature sensor, so that whether it is a solid food or a liquid
  • the infrared temperature sensor can detect the surface temperature of the foodstuff, and avoid detecting the wall temperature of the appliance, thereby achieving the purpose of accurately detecting the surface temperature of the foodstuff.
  • the tilting installation is performed by the collecting device toward the position of the foodstuff placed in the accommodating cavity, so that the collecting viewing angle of the collecting device covers the plurality of shooting faces of the foodstuff, so that the collecting device can collect the multi-directional image of the foodstuff by tilting, and pass Multi-directional images improve the recognition accuracy of ingredients.
  • FIG. 1 is a schematic structural view of a smart microwave oven according to Embodiment 1;
  • FIG. 2 is a schematic diagram of the cooperation between the identification position and the infrared field of view of the infrared temperature sensor
  • FIG. 3 is a schematic structural view of a microwave oven of Embodiment 2;
  • Figure 4 is a schematic cross-sectional view of Figure 3;
  • Figure 5 is a schematic structural view of a collecting device
  • Figure 6 is a schematic front view of Figure 5;
  • Figure 7 is a schematic exploded view of Figure 3;
  • Figure 8 is a schematic view of a double fan structure
  • FIG. 9 is a schematic exploded view showing the installation of the collecting device of the third embodiment.
  • Figure 10 is a schematic view showing the overall structure of the third embodiment
  • Figure 11 is a schematic view showing the arrangement of LED lamp groups of the lighting device of the fourth embodiment.
  • FIG. 12 is a schematic view showing the assembly of the illumination device and the collection device of the fourth embodiment.
  • the principle of infrared temperature measurement is to measure the temperature by using this principle.
  • the infrared thermometer consists of an optical system, a photodetector, a signal amplifier, and signal processing and output.
  • the optical system converges the target infrared radiation energy within its field of view.
  • the size of the field of view is determined by the optical components of the thermometer and their position.
  • the infrared energy is focused on the photodetector and converted into a corresponding electrical signal.
  • the signal passes through the amplifier and the signal processing circuit, and is converted to the temperature value of the measured object after being corrected according to the algorithm and the target emissivity in the instrument.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the front-end food material parameters are collected, the collected data is processed, and the microwave oven is intelligently controlled according to the processing result.
  • the front end of the food material is mainly collected by the food temperature and the image of the food material, and the food collected by the front end is collected from the front end.
  • the temperature and the image of the food are processed to obtain the relevant parameters of the food, and then the intelligent parameters of the microwave oven are controlled by the relevant parameters.
  • the surface temperature of the food material is accurately detected, and the image of the food material is collected through a plurality of imaging surfaces to improve the recognition accuracy of the food material through the multi-directional stereo image.
  • the schematic diagram of the smart microwave oven of the present example is as shown in FIG. 1, and includes a casing 1, an infrared temperature sensor 2, a marker position 3, and a collecting device 4, wherein the casing 1 having a receiving chamber 11 for placing foodstuffs, the infrared temperature sensor 2 is mounted inside the accommodating chamber 11 for measuring the surface temperature of the foodstuff inside the accommodating chamber 11, and the marking position 3 is displayed at the bottom of the accommodating chamber 11 for the bottom of the accommodating chamber 11 The placement position of the foodstuff is indicated to prevent the food material from being deflected, resulting in inaccurate measurement of the food material parameter.
  • the collecting device 4 is installed inside the accommodating chamber 11 for capturing an image of the foodstuff inside the accommodating chamber 11 and identifying the image.
  • the infrared temperature sensor 2 uses a small, high-precision, non-contact remote infrared temperature sensor to measure the temperature of the food in the microwave oven.
  • the model of the infrared measuring sensor 2 is MLX90614BSF-BCI; the MELEXIS infrared series sensor is a A common infrared temperature measurement module. The module has been verified and linearized before leaving the factory, and has the advantages of non-contact, small size, high precision and low cost.
  • the measured target temperature and ambient temperature can be output through a single channel and have two output interfaces, suitable for automotive air conditioning, indoor heating, household appliances, handheld devices, and medical device applications.
  • the MLX90614 used in this example is a contactless infrared temperature sensing chip. It integrates an infrared thermopile sensor with a custom signal conditioning chip in the same TO-39 package.
  • the MLX90614 uses an advanced low noise amplifier, a 17-bit ADC, and powerful DSP components in the signal conditioning chip for high-accuracy temperature measurements.
  • the infrared temperature sensor 2 can be mounted on the top wall or the side wall inside the accommodating cavity 11 according to actual needs, wherein when the infrared temperature sensor is mounted on the top wall inside the accommodating cavity 11, it is installed
  • the infrared temperature sensor 2 is mounted on the top wall inside the accommodating chamber 11 and located at an intermediate position of the top wall; the infrared field of view of the infrared temperature sensor 2 is projected from top to bottom
  • the surface of the foodstuff inside the chamber 11 is accommodated to measure the surface temperature of the foodstuff inside the chamber 11.
  • the temperature measured by the infrared temperature sensor 2 is actually a temperature-weighted average of the measured object in the field of view, and the accuracy of the temperature of the measured object can be ensured only when the measured object completely covers the FOV field of the infrared temperature sensor 2. Therefore, the FOV viewing angle of the infrared temperature sensor of the present example is a small viewing angle, and the FOV viewing angle ranges from 0° to 45°. In other embodiments, the FOV viewing angle range may also be 3° to 45°, preferably, The infrared temperature sensor of the example has a FOV angle of 5° and an object-to-space ratio of 12:1. Thus, for a specific environment such as a microwave oven, the food material having a diameter of 2 cm or more can be accurately measured.
  • the marking position 3 is displayed at the bottom of the accommodating chamber 11 for prompting the correct placement position of the foodstuff.
  • the infrared field of view of the infrared temperature sensor 2 is projected into the appliance, and the wall of the appliance is located.
  • the infrared temperature sensor 2 has an infrared field of view outside the projection range.
  • the identification bit 3 is an identification coil disposed at the bottom of the accommodating cavity 11, wherein the range of the identification coil overlaps with the projection range of the infrared field of view of the infrared temperature sensor 2 projected on the bottom of the accommodating cavity 11, for example, infrared
  • the range of the identification coil is determined according to the range in which the FOV angle of the infrared temperature sensor 2 is 5°, wherein the infrared field of view of the infrared temperature sensor 2 is A schematic diagram of the range of the identification coil is shown in Figure 2.
  • the range of the identification coil passing through the bottom of the accommodating chamber 11 overlaps with the projection range of the infrared field of view of the infrared temperature sensor 2 projected on the bottom of the accommodating chamber 11.
  • the user can select the appropriate appliance by marking the area of the coil.
  • the liquid food material for example, prompts the user to select an overall structure that is slightly larger than the area of the identification coil, such that after the liquid food material is placed on the selected appliance, when the appliance is placed on the identification coil and the center positions of the two are coincident, At the same time, the infrared field of view of the infrared temperature sensor 2 completely falls into the appliance, thereby preventing the infrared field of view of the infrared temperature sensor 2 from being projected onto the wall of the appliance, thereby avoiding detecting the wall temperature of the appliance.
  • the identification coil at the bottom of the accommodating chamber 11 can not only guide the user to place the food in the correct position, but also prompt the user to select a suitable appliance to hold the food.
  • the traditional method is to select the appliance for the liquid food. (That is, the device is randomly selected, as long as the device can hold the liquid food, regardless of whether the wall temperature of the device can be detected when detecting the surface temperature of the liquid food).
  • the temperature range reached by the infrared temperature sensor 2 is determined by setting the installation position of the infrared temperature sensor 2 and the selection and viewing angle range of the infrared temperature sensor 2, and the temperature range is only covered to the surface of the food.
  • the design of the marker position 3, the selection of the infrared temperature sensor 2, and the viewing angle range are important, because it does not cover the utensils that contain the ingredients.
  • an infrared indicator light (not shown) is further disposed in the middle of the top wall inside the accommodating chamber 11, and the infrared indicator light emits a red light spot or aperture, and the red light spot or aperture At the bottom of the accommodating chamber 11, the mark 3 is a spot or aperture of the infrared indicator light at the bottom of the accommodating chamber 11; further, in order to reduce the large change of the microwave mold, in this example, the infrared temperature sensor 2 and the infrared indication
  • the lamp is an integrated structure, that is, a mounting position is opened on the outer casing 1 of the microwave mold, and the infrared temperature sensor 2 and the infrared indicator light are comprehensively installed through the mounting position.
  • the integrated structure not only has the function of measuring the surface temperature of the foodstuff, but also has the function of indicating that the foodstuff is placed in the correct position.
  • the infrared temperature sensor 2 and the infrared indicator light can also be independently designed.
  • the collecting device 4 is mounted on the side wall of the inside of the accommodating chamber 11, or is mounted on the door body of the smart microwave oven, for example, can be mounted on the front wall of the door body.
  • the collecting device 4 is obliquely mounted on the outer casing 1.
  • the collecting device 4 is inclined toward a position in which the foodstuffs are placed in the accommodating chamber 11 of the outer casing 1 so that the collecting angle of view of the collecting device 4 covers a plurality of photographing faces of the foodstuff, and images of the contents of the accommodating cavity 11 are collected according to the plurality of photographing faces. And identify the image.
  • the collecting device 4 is mounted on the side wall of the interior of the accommodating cavity 11, and is located at the top corner position of the side wall, so that the shooting picture is more three-dimensional; using a megapixel high-definition camera to make the object more
  • the dedicated recognition camera of the acquisition device 4 is a wide-angle lens. If a 120° wide-angle lens is used, the inside of the microwave oven can be photographed in all directions, and specific parameters such as focal length and depth of field are selected, so that the special recognition camera is more suitable for the microwave oven environment. Focus shooting.
  • the example further includes a light-filling device for filling the interior of the microwave oven, and the light-filling device is installed inside the accommodating cavity 11
  • the fill light device of this example is a high brightness LED light.
  • the infrared temperature sensor 2 is installed at an intermediate position of the top wall inside the accommodating chamber 11, and a mark 3 is displayed at the bottom of the accommodating chamber 11 to prompt the correct placement position of the food.
  • the infrared field of view of the infrared temperature sensor 2 is projected into the appliance, and the wall of the appliance is located outside the projection range of the infrared field of view of the infrared temperature sensor 2, so that whether the solid food or the liquid food is placed by the appliance
  • the infrared temperature sensor 2 can detect the surface temperature of the foodstuff, and avoid detecting the wall temperature of the appliance, thereby achieving the purpose of accurately detecting the surface temperature of the foodstuff.
  • the example is also installed obliquely by the position in which the collecting device 4 is placed toward the foodstuff in the accommodating chamber 11 of the outer casing 1 so that the collecting angle of view of the collecting device 4 covers a plurality of photographing faces of the foodstuff, so that the collecting device 4 can be collected by tilting.
  • the multi-aspect image of the ingredients improves the recognition accuracy of the ingredients through multi-directional images.
  • the smart microwave oven of the present example can achieve at least one effect.
  • only the infrared temperature sensor 2 and the marker position 3 can be set in the smart microwave oven as needed to detect only the surface of the food material.
  • the effect of the temperature; in other embodiments, only the collection device 4 can be designed in the smart microwave oven as needed to achieve the effect of collecting only the image of the food material.
  • the infrared temperature sensor 2 can also be set at the same time. Bit 3 and acquisition device 4 are used to achieve the effect of detecting the surface temperature of the food item and collecting the image of the food item.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • This example provides a specific installation manner in which the collecting device 4 is obliquely mounted on the outer casing 1. It should be noted that, by the mounting manner of the collecting device 4 of this example, those skilled in the art can think of the mounting manner of the collecting device 4. Apply to convection ovens, micro-steamers, ovens or micro-steamers, or other smart devices that store food, such as refrigerators. Breaking the installation method of the camera in the existing smart device, by simply modifying the mold opening of the outer casing 1, the camera can be tilted and mounted in the outer casing 1, enlarging the shooting angle of the camera, and then collecting the stereoscopic image of the food in the outer casing 1.
  • the housing 1 of the present example is provided with an acquisition device 4 for collecting images of the foodstuffs in the appliance.
  • the collection device 4 is tilted in this example. Installed in the furnace cavity (ie, the accommodating cavity) of the outer casing 1.
  • the side wall of the cavity of the outer casing 1 is provided with a mounting hole 5 for mounting the collecting device 4, and the mounting hole 5 is inclined toward the cavity of the outer casing 1 After the collecting device 4 is mounted on the mounting hole 5, the collecting device 4 is inclined toward the position in which the foodstuffs in the cavity of the outer casing 1 are placed, so that the collecting angle of view of the collecting device 4 covers a plurality of photographing faces of the foodstuff.
  • the collecting device 2 can be mounted on any one of the left and right side walls of the outer casing 1, or can be installed at the top position of the outer casing 1, and can also be mounted on a corner piece of the outer casing 1, for example, the collecting device 4 can be installed.
  • the collecting device 4 can also be mounted on the right side wall of the furnace chamber of the outer casing 1, and the collecting device 4 can also be mounted on the rear portion of the furnace chamber of the outer casing 1, the collecting device 4 It can also be installed on the top of the outer casing 1.
  • the corresponding installation hole 5 can be designed in the opening of the corresponding wall body, so that the original open mold structure of the outer casing 1 is less changed.
  • the collecting device 4 can be disposed obliquely in the cavity of the outer casing 1 to realize a stereoscopic image of the foodstuff that the collecting device 4 can collect into the outer casing 1.
  • FIG. 3 the overall structure of the collecting device 4 of the present example and the outer casing 1 is as shown in FIG. 3, and the cross-sectional view of the matching is shown in FIG. 4, and the structure of the collecting device 4 is shown.
  • FIG. 5 and Fig. 6 the explosion diagram of the collecting device 4 in cooperation with the outer casing 1 is as shown in Fig. 7.
  • the collection device 4 includes a housing 41, at least one layer of transparent temperature-isolated glass 42 and a camera 43.
  • the housing 41 is provided with an inclined mounting portion 44 in cooperation with the mounting hole 5, and the housing 41 is mounted on the housing 1 in cooperation with the mounting hole 5.
  • the inclined mounting portion 44 is received in the mounting hole 5, as shown in FIG. 3; the temperature-insulating glass 42 is mounted on the inclined mounting portion 44, and the surface of the temperature-proof glass 42 is coated for good heat insulation effect.
  • a layer of insulating glass 42 may be selected, or a double-layer insulating glass 42 may be selected; the camera 43 is mounted on the inclined mounting portion 44 and passes through the temperature-proof glass 42 and the outer casing. The inside of the furnace chamber is isolated.
  • the collecting device 4 is installed in a convection oven, an oven, or a micro-steaming oven, the camera 43 can be thermally insulated by the temperature-proof glass 42.
  • the camera 43 of the present example is preferentially a wide-angle camera, and the image of the food in the outer casing 1 is collected, and the collected image can be actually transmitted to the user end, so that the user can remotely monitor the outer casing 1 and can also recognize the collected image.
  • the microwave oven is automatically controlled according to the specific type of ingredients.
  • the specific combination of the collecting device 4 is such that the inclined mounting portion 44 is provided with a window 45 for accommodating the camera 43, and the window 45 extends toward the mounting side of the heat insulating glass 42.
  • the collecting device 4 further includes a first portion for use with the temperature-proof glass 42 a silicone sleeve 46 and a second silicone sleeve 47 for use with the camera 43.
  • the first silicone sleeve 46 sleeves the temperature-insulating glass 42 to the extension of the window 45, and when the inclined mounting portion 44 is received in the mounting hole 5, A silicone sleeve 46 is in sealing contact with the inner wall of the mounting hole 5, the second silicone sleeve 47 sleeves the camera 43 in the window 45, and the second silicone sleeve 47 is in sealing contact with the inner wall of the window 45.
  • the first silicone sleeve 46 and the second silicone sleeve 47 of this example not only serve to fix but also function as heat insulation.
  • the collecting device 4 further includes a control board 48 for controlling the camera 43.
  • the tilt mounting portion 44 is further provided with a mounting bracket 49 on the mounting side of the camera 43, and the control board 48 is mounted on the mounting bracket 49 for the camera. 43 is combined with the control board 48 and fixed to the mounting bracket 49.
  • the camera 43 is received in the window 45 through the second silicone sleeve 47.
  • the present embodiment further includes a heat dissipating device 6 mounted on the side wall of the cavity on the same side as the collecting device 4 or mounted on the collecting device 4 for performing the collecting device 4.
  • Heat dissipation; according to the specific application of the product, the heat sink 6 of this example may be an AC fan, and may be a DC fan or a blower.
  • the heat dissipating device 6 of the present example can dissipate heat from the collecting device 4 in different combinations.
  • the heat dissipating device 6 can adopt a combination of two fans, that is, a dual fan structure (suction fan and exhaust fan), and one fan.
  • a fan is used for the air outlet to form a heat dissipation loop.
  • the installation structure diagram of the heat sink 6 of the dual fan structure is shown in FIG. 8.
  • FIG. 8 is only an example of the dual fan structure.
  • the double fan in the dual fan structure may also be in other arrangement and combination.
  • the dual fans are located at the same horizontal plane; wherein the air outside the outer casing 1 is sucked through the suction fan, and the airflow is exhausted from the exhaust fan through the air duct, further,
  • the housing of the outer casing 1 is provided with an air inlet corresponding to the position of the suction fan, and an air outlet is arranged corresponding to the position of the exhaust fan to enhance air convection of the air duct to achieve a good heat dissipation effect.
  • the heat sink 6 can also be a single fan structure, and the collector device 4 can be cooled by a single fan and a corresponding return air outlet.
  • the heat sink device 6 of the single fan structure (such as only the suction fan) is installed on the collecting device.
  • the lower part of the casing 41 of the casing 4, correspondingly, the casing of the casing 1 is provided with an air inlet corresponding to the position of the suction fan, and an air outlet is provided at the position of the camera 43 of the collecting device 4 to enhance air convection of the air duct to achieve good performance. heat radiation.
  • the door of the smart microwave oven of the present example has at least three layers of glass, wherein the intermediate layer glass or/and the inner glass surface of the door body is coated with
  • the heat insulating coating, such as the intermediate layer glass or/and the inner glass, is a low-e glass, so that the door body of the outer casing 1 has heat reflection, that is, the door body of the outer casing 1 thermally reflects the high temperature in the furnace cavity.
  • the purpose of preventing the user from being burned by the door body of the outer casing 1 is achieved.
  • the door body has a transparent structure, the user can visually see the processing process of the food through the door body.
  • the example further includes a touch display screen 7.
  • the touch display screen 7 is disposed on the door body or disposed at the top of the furnace chamber of the outer casing 1 and directly above the door body, so that the user can pass
  • the touch display screen 7 controls the processing process of the food by the outer casing 1, such as the control of the processing time, the control of the processing temperature, etc.
  • the outer casing 1 can also be intelligently identified according to the image collected by the collecting device 4, and according to the type of the identified food material.
  • the recipe corresponding to the type of the food material is displayed on the touch display screen 7 for the user to view the recipe.
  • the microwave oven of the present example can be designed to have a networking function or work offline to improve the promotion of the microwave oven.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the present embodiment provides another mounting manner of the collecting device 4.
  • the collecting device 4 of the present example is mounted on the door of the appliance, as shown in FIG. 9 and FIG. 10, when the collecting device 4 is mounted on the door of the appliance.
  • the door body can be composed of four layers of glass.
  • the door body of the microwave oven comprises a door frame support frame 8 on which a plurality of layers of glass are mounted, and the door frame support frame 8 is mounted with three layers of glass on the side close to the cavity, and the three layers are
  • the surface of the glass is coated with a heat-insulating coating, and the heat-insulating effect of the collecting device 4 is achieved by the multi-layer heat-insulating glass. Therefore, the mounting scheme does not need to add a heat-dissipating device, and one side is installed away from the furnace cavity.
  • the glazing, the collecting device 4 is obliquely mounted on the door frame support frame 8.
  • the collection device 4 of the present example is different from the collection device 4 of the second embodiment.
  • the collection device 4 of the present example includes a camera 401, a mounting plate 402 that is obliquely mounted with the door frame support frame 8 and The silicone pad 403, the mounting plate 402 is provided with a through hole, the side of the mounting plate 402 close to the furnace cavity is sleeved with the silicone pad 403 through the through hole, the camera 401 is mounted on the side of the mounting plate 402 away from the cavity, and the camera 401 is sleeved on the silicone.
  • the mounting plate 402 is obliquely mounted on the door frame support frame 8 so as to tilt the position of the collecting device 4 toward the position of the food in the cavity of the outer casing 1 so that the viewing angle of the collecting device 4 covers the food. Multiple camera faces.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the picture light of the capturing device is more uniform, and the example further includes a lighting device 9 for filling the interior of the microwave oven.
  • the first installation manner is that the illumination device 9 is directly installed in the furnace cavity of the outer casing 1, and the illumination device 9 and the collection device 4 are installed separately, that is, the illumination device 9 and the collection device 4 are respectively installed in
  • the lighting device 9 is specifically a halogen lamp in different positions of the furnace chamber.
  • the present embodiment also provides another installation manner of the illumination device 9.
  • the illumination device 9 and the collection device 4 are integrated into an integrated structure.
  • the illumination device 9 is preferably an LED lamp group and an LED.
  • the lamp group includes a carrier and a plurality of LED lamps, the shape of the plurality of LED lamps, the number of LED lamps, and the position of the LEDs, which can be appropriately adjusted according to the size of the furnace cavity, and the specifications of the LED lamps may be patches or It is a plug-in, for example, the structure and shape of the lighting device 9 is as shown in FIG.
  • the LED lamp group is installed by the carrier and the collecting device 4, and the matching manner of the carrier and the collecting device 4 can be determined according to the shape of the carrier.
  • the carrier can be designed according to the actual application.
  • the carrier can be a long strip structure, or The square structure may also be a circular structure.
  • the carrier may be designed to avoid the escape port of the camera, or may not be designed to avoid the mouth; for example, the carrier of the long strip structure, several The LED lights are arranged in a long strip shape.
  • the design avoidance port is not required, and when the carrier is a square structure or a circle In the case of the shape structure, since the window completely covers the window when the carrier is mounted to the inclined mounting portion, the carrier needs to design a escaping port to pass the camera through the escaping port.
  • a person skilled in the art can realize the cooperative assembly of the lighting device 9 and the collecting device 4 to form an integrated structure by several modifications.
  • the integrated structure is obliquely mounted on the outer casing 1 so that both the collecting device 4 and the illuminating device 9 are inclined toward the position in which the articles are placed in the cavity, so that image collection and illumination can be realized only by opening a hole in the cavity.
  • a structural example of the mounting of the lighting device 9 in combination with the collecting device 4 is as shown in FIG.
  • Integrating the collecting device 4 and the illuminating device 9 is different from the collecting device 4 and the illuminating device 9 in different positions of the furnace cavity, and has the following advantages: the collecting device 4 and the illuminating device 9 are separately installed, and the collecting device 4 is fixed.
  • the illuminating device 9 must have corresponding fixing structures and light-transmitting holes at two different places in the furnace chamber.
  • the illumination device 9 and the acquisition device 4 are assembled into an integrated structure, and only a hole in one place of the furnace cavity can be used to achieve image acquisition and illumination.
  • the lighting device 9 of this example can not only use LED lighting but also illumination with a halogen lamp.
  • the lighting device with a camera such as an oven or a microwave oven, is a halogen lamp, and the color temperature and color of the lamp are yellow.
  • the reason is that there are two disadvantages in the imaging observation: 1. The person observes the food inside the cavity through the naked eye, there will be a large color difference, and the condition of the food can not be observed well; 2. The image is displayed through the display, although The color of some foods is restored by software filtering, but the workload is large, and there is still a certain gap between the restored color and the white light.
  • LED lighting has a clear advantage over the illumination of the lamp.
  • the LED lamp has a wide range of brightness and color temperature. It can also call out the color of different lights, which has great advantages for the camera to capture images. Therefore, this example
  • the lighting device 9 is preferably an LED light group.
  • the illuminating device 9 and the collecting device 4 in combination with the mounting manner of the heat dissipating device 6 in the first embodiment, when the heat dissipating device 6 is assembled in combination with the collecting device 4, the illuminating device 9, the collecting device 4 and the heat dissipating device can be realized. 6 combination installation, that is, the illumination device 9, the collection device 4 and the heat dissipation device 6 are integrated on one module, and the temperature of the local region is stabilized by the heat dissipation device 6 within a range that does not damage the illumination lamp and the camera, so that the illumination lamp and the camera Works in products that produce high temperatures.

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Abstract

一种具有食材采集功能的智能微波炉，包括：外壳（1）、红外测温传感器（2）和标识位（3），红外测温传感器（2）安装于容纳腔（11）顶壁的中间位置，用于测量容纳腔（11）内部食材的表面温度；标识位（3）显示于容纳腔（11）底部，用于提示食材的正确放置位置，待食材通过器具放置于标识位（3）时，红外测温传感器（2）的红外视场投射于器具内，且器具的壁体位于红外测温传感器（2）的红外视场的投射范围之外。通过红外测温传感器（2）和标识位（3）实现食材表面温度的精确采集，并通过采集装置（4）朝向外壳（1）的容纳腔（11）内食材放置的位置方向倾斜安装，以使采集装置（4）的采集视角覆盖食材的多个拍摄面，使得，采集装置（4）通过倾斜的方式能采集到食材的多方位图像，通过多方位图像提高食材的识别精度。

Description

一种具有食材采集功能的智能微波炉 技术领域
本发明涉及微波炉技术领域，具体涉及一种具有食材采集功能的智能微波炉。
背景技术
随着微波炉智能化控制的发展，一般需要对微波炉内的食材进行温度采集，或者对微波炉内的食材进行图像采集，然后根据采集的食材温度或食材图像进行分析，并根据分析结果对微波炉进行相应的智能控制，也即是，若要对微波炉进行智能化控制，首要工作是对微波炉内的食材参数进行采集。
现有的对微波炉内食材参数采集的设备为普通的温度传感器和普通的摄像头，因此，现有的微波炉内使用的采集设备均普遍存在采集精度低的问题，以采集温度为例，实际应用中，微波炉内可放置各种各样的食材，而不同的食材需要的盛放器具不同，如，液体食材需要放在碗内或杯内，固体食材可以放在盘子内，等，而针对测温时，当液体食材放在碗内或杯内时，因器具(碗或杯)与液体之间存在温差，也即是，杯子的温度并不是杯子内液体的温度，而现有液体食材的测温方式，检测的并不是液体食材自身的温度，而是器具的温度，导致食材温度采集精度低，所以，对微波炉的智能化控制也存在控制误差。
发明内容
本申请提供一种具有食材采集功能的智能微波炉，可以解决现有微波炉温度采集和图像采集精度差的问题，具体通过以下技术方案实现。
一种具有食材采集功能的智能微波炉，包括：
外壳，具有放置食材的容纳腔；
红外测温传感器，安装于所述容纳腔内部的顶壁的中间位置，所述红外测温传感器的红外视场投射于所述容纳腔内部食材的表面，以测量所述容纳腔内部食材的表面温度；
标识位，显示于所述容纳腔底部，用于提示食材的正确放置位置，待食材通过器具放置于所述标识位时，所述红外测温传感器的红外视场投射于器具内，且器具的壁体位于所述红外测温传感器的红外视场的投射范围之外；
一种实施例中，所述红外测温传感器的红外视场的FOV视角范围为3°～60°。
一种实施例中，所述标识位为设置于所述容纳腔底部的标识线圈。
一种实施例中，所述标识线圈的范围与所述红外测温传感器的红外视场投射于所述容纳腔底部的投射范围重叠。
一种实施例中，还包括红外指示灯，安装于所述容纳腔内部的顶壁的中间位置，所述红外指示灯发出红色的光点或光圈，并将所述红色的光点或光圈打在所述容纳腔底部，所述标识位为所述红外指示灯打在所述容纳腔底部的光点或光圈。
一种实施例中，所述红外测温传感器与所述红外指示灯为一体化结构。
一种实施例中，还包括采集装置，所述采集装置倾斜安装于所述外壳上，且所述采集装置朝向所述容纳腔内食材放置的位置方向倾斜，以使所述采集装置的采集视角覆盖食材的多个拍摄面，并根据多个拍摄面采集所述容纳腔内部食材的图像及对所述图像进行识别。
一种实施例中，所述外壳的侧壁、或外壳的顶部或外壳的后部设有用于安装所述采集装置的安装孔，所述安装孔朝向所述外壳的容纳腔内凹陷倾斜，当所述采集装置安装在所述安装孔后，所述采集装置朝向所述外壳的容纳腔内倾斜。
一种实施例中，所述采集装置包括壳体、至少一层透明的隔温玻璃和摄像头；
所述壳体配合所述安装孔设有倾斜安装部，待所述壳体配合所述安装孔安装于所述器具的炉腔侧壁时，所述倾斜安装部容置于所述安装孔内；
所述隔温玻璃安装于所述倾斜安装部上；
所述摄像头安装于所述倾斜安装部上，并通过所述隔温玻璃与所述外壳的容纳腔内部隔离。
一种实施例中，所述隔温玻璃表面涂有隔热涂层。
一种实施例中，所述倾斜安装部开设有用于容纳所述摄像头的窗口，所述窗口朝向所述隔温玻璃的安装侧延伸，所述采集装置还包括与所述隔温玻璃配合使用的第一硅胶套和与所述摄像头配合使用的第二硅胶套，所述第一硅胶套将所述隔温玻璃套接于所述窗口的延伸处，待所述倾斜安装部容置所述安装孔内时，所述第一硅胶套与所述安装孔的内壁密封接触，所述第二硅胶套将所述摄像头套接于所述窗口内，且所述第二硅胶套与所述窗口的内壁密封接触。
一种实施例中，所述采集装置还包括控制所述摄像头的控制板，所述倾斜安装部于所述摄像头的安装侧还设有安装支架，所述控制板安装于所述安装支架上。
一种实施例中，还包括散热装置，所述散热装置安装于与所述采集装置同 侧的容纳腔侧壁上或安装于所述采集装置上，用于对所述采集装置进行散热。
一种实施例中，所述散热装置为交流风扇、直流风扇或鼓风机。
一种实施例中，所述外壳的门体具有至少三层玻璃组成。
一种实施例中，所述门体的中间层玻璃或/和内层玻璃表面涂有隔热涂层。
一种实施例中，还包括采集装置，所述采集装置倾斜安装于所述门体上，且所述采集装置朝向所述容纳腔内食材放置的位置方向倾斜，以使所述采集装置的采集视角覆盖食材的多个拍摄面，并根据多个拍摄面采集所述容纳腔内部食材的图像及对所述图像进行识别。
一种实施例中，所述外壳的门体包括安装多层所述玻璃的门框支撑架，所述门框支撑架靠近容纳腔的一侧安装有至少两层玻璃，远离容纳腔的一侧安装有一层玻璃，所述采集装置倾斜安装于所述门框支撑架上。
一种实施例中，所述采集装置包括摄像头、配合所述门框支撑架倾斜安装的安装板和硅胶垫；所述安装板设有通孔，所述安装板靠近炉腔的一侧通过所述通孔套接所述硅胶垫，所述安装板远离炉腔的一侧安装所述摄像头，且所述摄像头套接于所述硅胶垫内。
一种实施例中，还包括触摸显示屏，所述触摸显示屏设置于所述门体上，或者，设置于所述外壳容纳腔的顶部并位于所述门体的正上方。
一种实施例中，还包括照明装置，所述照明装置设置于所述容纳腔内。
一种实施例中，还包括照明装置，所述照明装置与所述摄像头集成组装为一体化结构。
一种实施例中，所述照明装置为LED灯组。
依据上述实施例的智能微波炉，通过结构设计具有以下优点：
1)采用红外测温传感器检测食材的表面温度，具体的，红外测温传感器安装于容纳腔内部的顶壁的中间位置，并在容纳腔底部显示标识位，以提示食材的正确放置位置，待食材通过器具放置于标识位时，红外测温传感器的红外视场投射于器具内，且器具的壁体位于红外测温传感器的红外视场的投射范围之外，这样，不论是固体食材还是液体食材只要通过器具放置于标识位的提示位置上，红外测温传感器就能检测到食材的表面温度，避免检测到器具的壁体温度，从而达到精准检测食材表面温度的目的。
2)通过采集装置朝向容纳腔内食材放置的位置方向倾斜安装，以使采集装置的采集视角覆盖食材的多个拍摄面，使得，采集装置通过倾斜的方式能采集到食材的多方位图像，通过多方位图像提高食材的识别精度。
附图说明
图1为实施例一的智能微波炉结构示意图；
图2为标识位与红外测温传感器的红外视场投射范围配合示意图；
图3为实施例二的微波炉结构示意图；
图4为图3的剖面示意图；
图5为采集装置的结构示意图；
图6为图5的正向示意图；
图7为图3的爆炸示意图；
图8为双风扇结构示意图；
图9为实施例三的采集装置安装的爆炸示意图；
图10为实施例三的整体结构示意图；
图11为实施例四的照明装置的LED灯组排布示意图；
图12为实施例四的照明装置与采集装置配合组装示意图。
具体实施方式
下面通过具体实施方式结合附图对本发明作进一步详细说明。
红外测温原理：物体红外辐射能量的大小和波长的分布与其表面温度关系密切。因此，通过对物体自身红外辐射的测量，能准确地确定其表面温度，红外测温就是利用这一原理测量温度的。红外测温器由光学系统、光电探测器、信号放大器和信号处理及输出等部分组成。光学系统汇聚其视场内的目标红外辐射能量，视场的大小由测温仪的光学零件及其位置确定。红外能量聚焦在光电探测器上并转变为相应的电信号。该信号经过放大器和信号处理电路，并按照仪器内的算法和目标发射率校正后转变为被测目标的温度值。
实施例一：
因基于前端的食材参数采集，通过对采集的数据进行处理，根据处理的结果对微波炉进行智能化控制，其中，食材的前端采集主要是食材温度采集和食材图像采集，后端对前端采集的食材温度和食材图像进行处理后可以获得食材的相关参数，然后通过该相关参数控制微波炉的智能化。
本例中，基于红外测温原理实现食材表面温度的精确检测，并通过多个拍摄面采集食材图像，以通过多方位立体图像提高食材的识别精度。
具体的，通过对微波炉内食材参数采集的设备进行改进，本例的智能微波炉的结构示意图如图1所示，包括外壳1、红外测温传感器2、标识位3和采集装置4，其中，外壳1具有放置食材的容纳腔11，红外测温传感器2安装于容 纳腔11内部，用于测量容纳腔11内部食材的表面温度；标识位3显示于容纳腔11底部，用于向容纳腔11底部指示食材的放置位置，以免食材放偏，导致食材参数测量不准确，采集装置4安装于容纳腔11内部，用于拍摄容纳腔11内部食材的图像并对该图像进行识别。
优选的，红外测温传感器2采用体积小、高精度无接触远程红外测温传感器来测量微波炉内的食材温度，本例中，红外测量传感器2的型号为MLX90614BSF-BCI；MELEXIS红外系列传感器是一组通用的红外测温模块。在出厂前该模块已进行校验及线性化，具有非接触、体积小、精度高，成本低等优点。被测目标温度和环境温度能通过单通道输出，并有两种输出接口，适合于汽车空调、室内暖气、家用电器、手持设备以及医疗设备应用等。其中本例使用的MLX90614是一款无接触式的红外线温度感应芯片。它在同一TO-39封装内整合了红外热电堆感应器与一款定制的信号调节芯片。MLX90614在信号调节芯片中使用了先进的低噪音放大器，一枚17-bit ADC以及功能强大的DSP元件，从而实现高精度温度测量。
根据实际需要，可以将红外测温传感器2安装于容纳腔11内部的顶壁上或者侧壁上，其中，当红外测温传感器安装于容纳腔11内部的顶壁上时，其或以安装在顶壁的中间位置，或者安装在顶壁的四个角中的任一位置；优选的，本例将红外测温传感器2安装到微波炉内部的特定位置，本例的该特定位置是指容纳腔11内部的顶壁的中间位置，即，红外测温传感器2安装于容纳腔11内部的顶壁上，且位于该顶壁的中间位置；红外测温传感器2的红外视场由上而下投射于容纳腔11内部食材的表面，以测量容纳腔11内部食材的表面温度.
另外，由红外测温传感器2测量得到的温度其实是视场内被测物体的温度加权平均值，只有在被测物体完全覆盖红外测温传感器2的FOV视场才能保证被测物体温度的精度，因此，本例的红外测温传感器的FOV视角为小视角，其FOV视角范围为0°～45°，在其他实施例中，FOV视角范围也可以为3°～45°，优选的，本例的红外测温传感器的FOV视角为5°，其物距比为12:1，这样，针对微波炉这样特定的环境下，一般直径2cm以上的食材都能被准确测量出其表面温度。
标识位3显示于容纳腔11底部，用于提示食材的正确放置位置，待食材通过器具放置于标识位3时，红外测温传感器2的红外视场投射于器具内，且器具的壁体位于红外测温传感器2的红外视场的投射范围之外。
一种实施例中，标识位3为设置于容纳腔11底部的标识线圈，其中，标识线圈的范围与红外测温传感器2的红外视场投射于容纳腔11底部的投射范围重 叠，如，红外测温传感器2的FOV视角为5°时，则标识线圈的范围根据红外测温传感器2的FOV视角为5°所投射的范围进行确定，其中，红外测温传感器2的红外视场投射范围与标识线圈的范围配合示意图如图2所示。
通过容纳腔11底部的标识线圈范围与红外测温传感器2的红外视场投射于容纳腔11底部的投射范围重叠，当检测液体食材表面温度时，可通过标识线圈面积提示用户选择合适的器具盛装液体食材，如，提示用户所选择的器具整体结构稍大于标识线圈面积，这样，将液体食材放置于所选择的器具后，当将器具放置于标识线圈上，且两者中心位置重合时，这时，红外测温传感器2的红外视场投射范围完全落入器具内，从而避免红外测温传感器2的红外视场投射到器具的壁体，进而避免检测到器具的壁体温度。
因此，容纳腔11底部的标识线圈不仅能指引用户将食材放置于正确位置，还能提示用户选择合适的器具盛装食材，如，针对盛装液体食材时，传统做法是，人为主观选择器具盛装液体食材(也即是随机选择器具，只要器具能盛装液体食材即可，而不考虑检测液体食材表面温度时能否检测到器具的壁体温度)。
本例通过设定红外测温传感器2的安装位置及通过红外测温传感器2的选型和视角范围综合确定红外测温传感器2所达到的测温范围，且使测温范围只覆盖到食材表面上，而不覆盖到盛装食材的器具上，因此，标识位3的设计、红外测温传感器2的选型及视角范围优其重要。
一种实施例中，还包括红外指示灯(图中未标识)，安装于容纳腔11内部的顶壁的中间位置，红外指示灯发出红色的光点或光圈，并将红色的光点或光圈打在容纳腔11底部，标识位3为红外指示灯打在容纳腔11底部的光点或光圈；进一步，为了减少微波炉模具具有较大的改变，本例中，红外测温传感器2与红外指示灯为一体化结构，即，在微波炉模具的外壳1上开设一处安装位，通过该安装位对红外测温传感器2与红外指示灯进行综合安装。该一体化结构不仅具有测量食材表面温度的功能，同时还具有指示食材放置到正确的位置的功能，在其他实施例中，也可以将红外测温传感器2与红外指示灯分别进行独立设计。
采集装置4安装于容纳腔11内部的侧壁上，或者安装于智能微波炉的门体上，如，可以安装到门体的前壁上，在本例中，采集装置4倾斜安装于外壳1上，且采集装置4朝向外壳1的容纳腔11内食材放置的位置方向倾斜，以使采集装置4的采集视角覆盖食材的多个拍摄面，并根据多个拍摄面采集容纳腔11内部食材的图像及对图像进行识别。
在其他实施例中，采集装置4安装于容纳腔11内部的侧壁上，且，位于侧 壁的顶角位置，使拍摄画面更加富有立体感；采用百万像素的高清摄像头，使拍摄物体更加清晰，优选的，采集装置4的专用识别摄像头为广角镜头，如采用120°广角镜头，可以全方位拍摄微波炉内部食材情况，选用特定的焦距、景深等参数，使专用识别摄像头更加适合在微波炉环境中进行对焦拍摄。
进一步，为了使采集装置4的专用识别摄像头具有固定曝光率，使其拍摄的画面光线更加均匀，本例还包括对微波炉内部进行补光的补光设备，补光设备安装于容纳腔11内部，优选的，本例的补光设备为高亮LED灯。
本例通过红外测温传感器2安装于容纳腔11内部的顶壁的中间位置，并在容纳腔11底部显示标识位3，以提示食材的正确放置位置，待食材通过器具放置于标识位3时，红外测温传感器2的红外视场投射于器具内，且器具的壁体位于红外测温传感器2的红外视场的投射范围之外，这样，不论是固体食材还是液体食材只要通过器具放置于标识位3的提示位置上，红外测温传感器2就能检测到食材的表面温度，避免检测到器具的壁体温度，从而达到精准检测食材表面温度的目的。
本例还通过采集装置4朝向外壳1的容纳腔11内食材放置的位置方向倾斜安装，以使采集装置4的采集视角覆盖食材的多个拍摄面，使得，采集装置4通过倾斜的方式能采集到食材的多方位图像，通过多方位图像提高食材的识别精度。
需要说明的是，本例的智能微波炉可达到至少一种效果，如，在其他实施例中，可以根据需要在智能微波炉内仅设置红外测温传感器2和标识位3，以达到仅检测食材表面温度的效果；在其他实施例中，也可以根据需要在智能微波炉内仅设计采集装置4，以达到仅采集食材图像的效果，在其他实施例中，还可以同时设置红外测温传感器2、标识位3和采集装置4，以达到检测食材表面温度和采集食材图像的效果。
实施例二：
本例提供一种采集装置4倾斜安装于外壳1上的具体安装方式，需要说明的是，通过本例的采集装置4的安装方式，本领域技术人员可以想到将采集装置4的这种安装方式应用到光波炉、微蒸箱、烤箱或微蒸烤箱，或者为其他存储食品的智能设备，如，电冰箱等。打破现有的智能设备内摄像头的安装方式，通过简单的改造外壳1的开模，使摄像头能倾斜安装于外壳1内，扩大摄像头的拍摄视角，进而采集到外壳1内食材的立体图像。
如图3-图7所示，本例的外壳1内设有对器具内的食材进行图像采集的采 集装置4，为了使采集装置4能拍摄到食品的立体图像，本例中采集装置4倾斜安装于外壳1的炉腔(即容纳腔)内，具体的，外壳1的炉腔侧壁设有用于安装采集装置4的安装孔5，安装孔5朝向外壳1的炉腔内凹陷倾斜，当采集装置4安装在安装孔5后，采集装置4朝向外壳1的炉腔内食材放置的位置方向倾斜，以使采集装置4的采集视角覆盖食材的多个拍摄面。
根据实际应用，采集装置2可以安装在外壳1的左右侧壁中的任一个侧壁上，也可以安装于外壳1的顶部位置，还可以安装于外壳1的角落片如，采集装置4可以安装在外壳1的炉腔内左侧壁上，采集装置4也可以安装在外壳1的炉腔内右侧壁上，采集装置4还可以安装在外壳1的炉腔内后部上，采集装置4还可以安装在外壳1的顶部，外壳1的模具开模时，只要在相应壁体的开模中设计相应的安装孔5即可，因此，对外壳1原有的开模结构改动较小，且能使采集装置4倾斜设置于外壳1的炉腔内，实现采集装置4能采集到外壳1内的食材的立体图像。
以采集装置4倾斜安装外壳1的侧壁为例，本例的采集装置4与外壳1配合的整体结构图如图3所示，配合的剖面图如图4所示，采集装置4的结构图如图5和图6所示，采集装置4与外壳1配合的爆炸图如图7所示。
其中，采集装置4包括壳体41、至少一层透明的隔温玻璃42和摄像头43，壳体41配合安装孔5设有倾斜安装部44，待壳体41配合安装孔5安装于外壳1的炉腔侧壁时，倾斜安装部44容置于安装孔5内，如图3所示；隔温玻璃42安装于倾斜安装部44上，为了达到良好的隔热效果，隔温玻璃42表面涂有隔热涂层，且，在实际应用中，可以选择一层隔温玻璃42，也可以选择双层隔温玻璃42；摄像头43安装于倾斜安装部44上，并通过隔温玻璃42与外壳1的炉腔内部隔离。当采集装置4安装于光波炉、烤箱、微蒸烤箱时，可以通过隔温玻璃42对摄像头43进行隔温保护。
本例的摄像头43优先为广角摄像头，对外壳1内的食材进行图像采集，可以将采集的图像实际传输给用户端，以实现用户对外壳1进行远程监控，还可以将采集的图像进行识别，以识别出食材的具体类型，根据食材的具体类型对微波炉进行自动控制。
采集装置4的具体组合方式是，倾斜安装部44开设有用于容纳摄像头43的窗口45，窗口45朝向隔温玻璃42的安装侧延伸，采集装置4还包括与隔温玻璃配42合使用的第一硅胶套46和与摄像头43配合使用的第二硅胶套47，第一硅胶套46将隔温玻璃42套接于窗口45的延伸处，待倾斜安装部44容置安 装孔5内时，第一硅胶套46与安装孔5的内壁密封接触，第二硅胶套47将摄像头43套接于窗口45内，且第二硅胶套47与窗口45的内壁密封接触。本例的第一硅胶套46和第二硅胶套47不仅起到固定的作用还起到隔热的作用。
为了实现摄像头43的硬件控制，采集装置4还包括控制摄像头43的控制板48，倾斜安装部44于摄像头43的安装侧还设有安装支架49，控制板48安装于安装支架49上，待摄像头43与控制板48组合后固定到安装支架49上，摄像头43通过第二硅胶套47容置于窗口45内，通过倾斜安装部44的倾斜，使得摄像头43朝向外壳1的炉腔内倾斜，与摄像头43直接嵌入炉腔侧壁相比，本例的摄像头43的安装方式具有较广范围的拍摄视角，且能拍摄外壳1内的食材的立体图像。
进一步，为了对采集装置4进行散热，本例还包括散热装置6，散热装置6安装于与采集装置4同侧的炉腔侧壁上或安装于采集装置4上，用于对采集装置4进行散热；根据产品的具体应用，本例的散热装置6可以是交流风扇，可以是直流风扇也可以是鼓风机。
本例的散热装置6可采用不同的组合形式对采集装置4进行散热，如，散热装置6可以采用两个风扇组合的架构，即双风扇结构(吸风风扇和排风风扇)，一个风扇用于引风，一个风扇用于出风，从而形成一个散热回路，双风扇结构的散热装置6的安装结构图如图8所示，图8仅是双风扇结构的一个示例，在其他示例中，双风扇结构中的双风扇还可以是其他排列组合形式，如，双风扇位于同一个水平面设置；其中，外壳1外部的空气经由吸风风扇吸入，风流经过风道从排风风扇排出，进一步，外壳1的壳体对应吸风风扇位置处设有进风口，对应排风风扇位置处设有出风口，加强风道空气对流，达到良好的散热效果。
散热装置6还可以仅是一个单风扇结构，通过单风扇及设计相应的回风出口，实现对采集装置4进行降温，单风扇结构的散热装置6(如仅有吸风风扇)安装于采集装置4的壳体41的下部，相应的，外壳1的壳体对应吸风风扇位置处设有进风口，对采集装置4的摄像头43位置处设有出风口，加强风道空气对流，达到良好的散热效果。
在其他实施例中，为了提高使微波炉的使用趣味性及安全性，本例的智能微波炉的门体具有至少三层玻璃组成，其中，门体的中间层玻璃或/和内层玻璃表面涂有隔热涂层，如，中间层玻璃或/和内层玻璃均为low-e玻璃，使得外壳1的门体具有热反射，即，外壳1的门体对炉腔内的高温进行热反射，达到防止使用者被外壳1的门体烫伤的目的，同时，因门体为透明结构，使用者通过门 体能直观地看到食品的加工过程。
为了使微波炉更加具有智能化，本例还包括触摸显示屏7，触摸显示屏7设置于门体上，或者设置于外壳1炉腔的顶部并位于门体的正上方，因此，使用者可以通过触摸显示屏7控制外壳1对食品的加工过程，如，加工时长的控制、加工温度的控制等，另外，外壳1还能根据采集装置4采集的图像进行智能识别，并根据识别的食材类型将与该食材类型对应的食谱展示于触摸显示屏7中，供使用者查看食谱，另外，本例的微波炉即可以设计为具有联网功能，也可以离线工作，以提高微波炉的推广使用。
实施例三：
基于实施例二，本例提供采集装置4的另一种安装方式，本例的采集装置4安装于器具的门体上，如图9和图10所示，当采集装置4安装于器具的门体上时，门体的可具有四层玻璃组成，进一步，微波炉的门体包括安装多层玻璃的门框支撑架8，门框支撑架8靠近炉腔的一侧安装有三层玻璃，且该三层玻璃表面均涂有隔热涂层，通过多层隔热的玻璃达到对采集装置4进行隔热的效果，因此，这种安装方案，不需要再添加散热装置，远离炉腔的一侧安装有一层玻璃，采集装置4倾斜安装于门框支撑架8上。
具体的，根据安装方式的不同，本例的采集装置4也与实施例二的采集装置4具体结构不同，本例的采集装置4包括摄像头401、配合门框支撑架8倾斜安装的安装板402和硅胶垫403，安装板402设有通孔，安装板402靠近炉腔的一侧通过通孔套接硅胶垫403，安装板402远离炉腔的一侧安装摄像头401，且摄像头401套接于硅胶垫403内。待采集装置4组装完成后，通过安装板402倾斜安装于门框支撑架8上，从而实现采集装置4朝向外壳1的炉腔内食品放置的位置方向倾斜，以使采集装置4的采集视角覆盖食品的多个摄像面。
实施例四：
基于实施例二和实施例三，为了使采集装置4的专摄像头具有固定曝光率，使其拍摄的画面光线更加均匀，本例还包括对微波炉内部进行补光的照明装置9，本例提供照明装置的两种安装方式，第一种安装方式是，照明装置9直接安装于外壳1的炉腔内，且照明装置9与采集装置4分立安装，即，照明装置9和采集装置4分别安装在炉腔不同的位置，该照明装置9具体为卤素灯。
区别于第一种安装方式，本例还提供照明装置9的另一种安装方式，将照明装置9与采集装置4集成组装为一体化结构，具体的，照明装置9优选为LED灯组，LED灯组包括载体和若干个LED灯，若干个LED灯组成的形状、LED 灯的数量和摆放的位置，视炉腔的大小可做适当的调整，LED灯的规格可以是贴片的也可以是插件的，示例的，照明装置9的结构和形状如图11所示。
LED灯组通过载体与采集装置4配合安装，可根据载体的形状确定载体与采集装置4的配合安装方式，载体可以根据实际应用设计各种形状，如，载体可以是长条状结构、可以是方形结构还可以是圆形结构，针对各种形状的载体具体与采集装置4配合组装时，载体可以设计使摄像头贯穿的避让口，也可以不设计避让口；如长条状结构的载体，若干个LED灯呈长条状排列，当载体与采集装置4的倾斜安装部配合安装时，若长条状结构的载体能直接避开摄像头，则不需要设计避让口，当载体为方形结构或圆形结构时，因载体安装至倾斜安装部时完全遮挡窗口，则载体需要设计避让口，使摄像头穿过该避让口。
在本例的构思上，本领域技术人员可以通过若干变形，实现照明装置9与采集装置4的配合组装以形成一体化结构。使该一体化结构倾斜安装于外壳1上，使采集装置4和照明装置9均朝向腔体内物品放置的位置方向倾斜，达到只需要在炉腔一处地方开孔就可以实现图像采集和照明。以实施例二的采集装置4的安装方式为例，则照明装置9与采集装置4组合安装的结构示例图如图12所示。
把采集装置4和照明装置9集成在一起，相比采集装置4和照明装置9分开放置在炉腔不同的位置，有以下好处：采集装置4和照明装置9分开安装，要固定采集装置4和照明装置9必需在炉腔两处不同的地方做相应的固定结构和透光孔。而把照明装置9和采集装置4组装成一体化结构，只需要在炉腔一处地方开孔就可以达到图像采集和照明。
本例的照明装置9不仅可以使用LED灯照明还可以使用囱素灯照明，目前带摄像头电器，如烤箱、微波炉等照明用灯都是囱素灯，由于囱素灯色温和光颜色是黄色的原因，在成像观察会存在两个缺点：1.人通过肉眼在外部观察腔体内部食物，会存在很大的色差，不能很好的观察食材的情况；2.影像通过显示屏显示，虽然可以通过软件过滤还原部分食物本身的颜色，但是工作量较大，还原颜色和白色光还是有一定差距。用LED灯照明对比囱素灯照明有很明显的优势，用LED灯可选亮量和色温范围比较广，还可以调出不同光的颜色，对摄像头采集图像有很大优势，因此，本例的照明装置9优选为LED灯组。
通过将照明装置9与采集装置4组合安装后，结合实施例一中的散热装置6的安装方式，当散热装置6与采集装置4组合安装时，可实现照明装置9、采集装置4和散热装置6三者组合安装，即，照明装置9、采集装置4和散热装置6集成在一个模块上面，通过散热装置6使局部区域温度稳定在不损坏照明灯和 摄像头的范围内，使照明灯和摄像头可在产生高温的产品中工作。
以上应用了具体个例对本发明进行阐述，只是用于帮助理解本发明，并不用以限制本发明。对于本发明所属技术领域的技术人员，依据本发明的思想，还可以做出若干简单推演、变形或替换。

Claims (23)

  1. 一种具有食材采集功能的智能微波炉，其特征在于，包括：
    外壳，具有放置食材的容纳腔；
    红外测温传感器，安装于所述容纳腔内部的顶壁的中间位置，所述红外测温传感器的红外视场投射于所述容纳腔内部食材的表面，以测量所述容纳腔内部食材的表面温度；
    标识位，显示于所述容纳腔底部，用于提示食材的正确放置位置，待食材通过器具放置于所述标识位时，所述红外测温传感器的红外视场投射于器具内，且器具的壁体位于所述红外测温传感器的红外视场的投射范围之外。
  2. 如权利要求1所述的智能微波炉，其特征在于，所述红外测温传感器的红外视场的FOV视角范围为0°～45°。
  3. 如权利要求1所述的智能微波炉，其特征在于，所述标识位为设置于所述容纳腔底部的标识线圈。
  4. 如权利要求3所述的智能微波炉，其特征在于，所述标识线圈的范围与所述红外测温传感器的红外视场投射于所述容纳腔底部的投射范围重叠。
  5. 如权利要求1所述的智能微波炉，其特征在于，还包括红外指示灯，安装于所述容纳腔内部的顶壁的中间位置，所述红外指示灯发出红色的光点或光圈，并将所述红色的光点或光圈打在所述容纳腔底部，所述标识位为所述红外指示灯打在所述容纳腔底部的光点或光圈。
  6. 如权利要求5所述的智能微波炉，其特征在于，所述红外测温传感器与所述红外指示灯为一体化结构。
  7. 如权利要求1所述的智能微波炉，其特征在于，还包括采集装置，所述采集装置倾斜安装于所述外壳上，且所述采集装置朝向所述容纳腔内食材放置的位置方向倾斜，以使所述采集装置的采集视角覆盖食材的多个拍摄面，并根据多个拍摄面采集所述容纳腔内部食材的图像及对所述图像进行识别。
  8. 如权利要求7所述的智能微波炉，其特征在于，所述外壳的侧壁、或外壳的顶部或外壳的后部设有用于安装所述采集装置的安装孔，所述安装孔朝向所述外壳的容纳腔内凹陷倾斜，当所述采集装置安装在所述安装孔后，所述采集装置朝向所述外壳的容纳腔内倾斜。
  9. 如权利要求8所述的智能微波炉，其特征在于，所述采集装置包括壳体、至少一层透明的隔温玻璃和摄像头；
    所述壳体配合所述安装孔设有倾斜安装部，待所述壳体配合所述安装孔安装于所述外壳的侧壁时，所述倾斜安装部容置于所述安装孔内；
    所述隔温玻璃安装于所述倾斜安装部上；
    所述摄像头安装于所述倾斜安装部上，并通过所述隔温玻璃与所述外壳的容纳腔内部隔离。
  10. 如权利要求9所述的智能微波炉，其特征在于，所述隔温玻璃表面涂有隔热涂层。
  11. 如权利要求9所述的智能微波炉，其特征在于，所述倾斜安装部开设有用于容纳所述摄像头的窗口，所述窗口朝向所述隔温玻璃的安装侧延伸，所述采集装置还包括与所述隔温玻璃配合使用的第一硅胶套和与所述摄像头配合使用的第二硅胶套，所述第一硅胶套将所述隔温玻璃套接于所述窗口的延伸处，待所述倾斜安装部容置所述安装孔内时，所述第一硅胶套与所述安装孔的内壁密封接触，所述第二硅胶套将所述摄像头套接于所述窗口内，且所述第二硅胶套与所述窗口的内壁密封接触。
  12. 如权利要求9所述的智能微波炉，其特征在于，所述采集装置还包括控制所述摄像头的控制板，所述倾斜安装部于所述摄像头的安装侧还设有安装支架，所述控制板安装于所述安装支架上。
  13. 如权利要求9所述的智能微波炉，其特征在于，还包括散热装置，所述散热装置安装于与所述采集装置同侧的容纳腔侧壁上或安装于所述采集装置上，用于对所述采集装置进行散热。
  14. 如权利要求13所述的智能微波炉，其特征在于，所述散热装置为交流风扇、直流风扇或鼓风机。
  15. 如权利要求1所述的智能微波炉，其特征在于，所述智能微波炉的门体具有至少三层玻璃组成。
  16. 如权利要求15所述的智能微波炉，其特征在于，所述门体的中间层玻璃或/和内层玻璃表面涂有隔热涂层。
  17. 如权利要求15所述的智能微波炉，其特征在于，还包括采集装置，所述采集装置倾斜安装于所述门体上，且所述采集装置朝向所述容纳腔内食材放置的位置方向倾斜，以使所述采集装置的采集视角覆盖食材的多个拍摄面，并根据多个拍摄面采集所述容纳腔内部食材的图像及对所述图像进行识别。
  18. 如权利要求17所述的智能微波炉，其特征在于，所述智能微波炉的门体包括安装多层所述玻璃的门框支撑架，所述门框支撑架靠近容纳腔的一侧安装有至少两层玻璃，远离容纳腔的一侧安装有一层玻璃，所述采集装置倾斜安装于所述门框支撑架上。
  19. 如权利要求17所述的智能微波炉，其特征在于，所述采集装置包括 摄像头、配合所述门框支撑架倾斜安装的安装板和硅胶垫；所述安装板设有通孔，所述安装板靠近炉腔的一侧通过所述通孔套接所述硅胶垫，所述安装板远离炉腔的一侧安装所述摄像头，且所述摄像头套接于所述硅胶垫内。
  20. 如权利要求15所述的智能微波炉，其特征在于，还包括触摸显示屏，所述触摸显示屏设置于所述门体上，或者，设置于所述外壳容纳腔的顶部并位于所述门体的正上方。
  21. 如权利要求1所述的智能微波炉，其特征在于，还包括照明装置，所述照明装置设置于所述容纳腔内。
  22. 如权利要求7或17所述的智能微波炉，其特征在于，还包括照明装置，所述照明装置与所述采集装置集成组装为一体化结构。
  23. 如权利要求22所述的智能微波炉，其特征在于，所述照明装置为LED灯组。
PCT/CN2018/124688 2018-05-15 2018-12-28 一种具有食材采集功能的智能微波炉 WO2019218685A1 (zh)

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