• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A toasting device adapted to the type of bread consisting of an artificial vision perception system composed of an insulating glass window (2), a wide-angle lens (3), a low-cost camera with color sensor (4) and a homogeneous lighting system, composed in turn of an insulating glass (7) and a lighting system (6). The images collected by the perception system are processed in a microcontroller (5) capable of detecting the slice of bread and its color tone constantly automatically, expelling it from the roasting chamber (9) when the set toasting tone is reached by the user through the toast tone selection interface (10). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2735313A1
    申请号:ES201800147
    申请日:2018-06-15
    公开日:2019-12-17
    发明作者:Miguel Manuel Ocana；Llamazares Angel Llamazares；Pinas Adrián Martin
    申请人:Universidad de Alcala de Henares UAH；
    IPC主号:
    专利说明:

    [0001]
    [0002] Roasting device adaptive to the type of bread.
    [0003]
    [0004] Technical sector
    [0005]
    [0006] The sector of the technique in which the invention is framed is consumer electronics.
    [0007]
    [0008] In addition, it is encompassed in the food sector by its direct application to a kitchen appliance.
    [0009]
    [0010] Background of the invention
    [0011]
    [0012] In the state of the art related to the present invention there are devices that are fundamentally based on measuring some parameter of an element to be roasted, as in DE2648865A1 patent where it is proposed to monitor the conductivity of the surface of the roasted element.
    [0013]
    [0014] Also in the NZ516861A patent a system of perception of the toast tone of a food product is described by the response thereof to light using a photoresistor (LDR, Light-Dependent Resistor, Variable resistance with light) to measure said response. The technical problem with this solution is that it does not allow to detect the roasting tone on the entire surface, but only at one point. The patent establishes the use of one or more LDRs to analyze the light reflected by a larger surface of the food and said sensors return a simplified luminescence parameter.
    [0015]
    [0016] The composition and shape of an intelligent toaster is described in the patent W002060302A2. It describes the use of an optical sensor to perceive the toast tone of the bread but it is not specified how that perception system should be or what elements it should understand. A strobe system is also mentioned to generate bread reflectivity signals, so that one skilled in the art will understand that these are LDR sensors similar to those described in the previous patent (NZ516861A).
    [0017]
    [0018] In other patents PL1980791T3 and DE2543751A1, a control system is proposed that expels the toast when the desired degree of toast is reached, but without detailing the sensor that should be used.
    [0019]
    [0020] In the CN102508507A patent, a user-configurable memory-based control method is also proposed, so that it is capable of storing different types of roasting related to a specific roasting time. However, in this case there is also no perception system and it is the user who has to configure the roasting times beforehand.
    [0021]
    [0022] Finally, a group of patents is known that describe both the perception and the control system. The CN104094984A patent proposes a system of perception and control of a generic oven capable of detecting textures of food by artificial vision and adapting the baking to it. It detects the food to avoid setting a toasting time for the user, but it does not solve the technical problem of tracking its evolution to heat to expel it when appropriate.
    [0023]
    [0024] Finally, in the utility model CN201535875U an infrastructure is proposed to allow a user to remotely monitor the food introduced in a generic oven with the help of artificial vision.
    [0025] Explanation of the invention.
    [0026] The invention proposed here comprises a perception system based on artificial vision for a bread toasting device adapted to the type of bread and slice, capable of analyzing the toast tone in real time, so that when the toast tone coincides with the one selected by the user, the roasting process is automatically stopped avoiding calcining the slice, providing the user with a toast with the desired degree of roasting. The proposed invention consists of a device that asks the user to determine the roasting tone he wants in a food through a tone selection interface. This device is able to detect the slice of bread automatically and eject it when the toast reaches the toast tone selected by the user.
    [0027] The roasting device comprises, at least, an artificial vision perception system, formed by a camera with a color sensor and a wide-angle lens, installed on the side of the roasting area so as to capture the entire roasting surface. This system is isolated from the heat of the roasting area by means of a glass, capable of creating a thermal break between both sides. In addition, it has a lighting system at the bottom of the roasting area, achieving uniform toast lighting.
    [0028] Once the slice of bread has been introduced by the user and the desired toast tone has been defined, a microcontroller activates the lighting system and analyzes an image taken by the camera, detecting the area of the image in which the slice is located. The controller activates the heating system formed by halogens and constantly monitors the color of the surface of the detected slice. When the user-defined roasting tone is reached, the controller stops the thermal heating system and operates the ejection mechanism.
    [0029] Thanks to the device described in the present invention, a very efficient and low-cost perception system is available, with a resolution of the toast tone much greater than that based on photodiodes or similar systems can provide. In addition, by having an artificial vision system, the bread slice introduced can be of any shape or type since the surface of the toast is automatically detected in order to evaluate the tone during toasting.
    [0030] Brief description of the drawings
    [0031] To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, a set of drawings is attached as an integral part of said description, where, for illustrative and non-limiting purposes, it has been represented the next:
    [0032] Figure 1.- Shows a side section view of the device.
    [0033] Figure 2.- Shows a perspective section view of the device assembly.
    [0034] Figure 3.- Shows the toasting tone selection interface.
    [0035] Preferred Embodiment of the Invention
    [0036] In a preferred embodiment of the present invention, the roasting device adapted to the type of bread object of the present invention comprises at least:
    [0037] - mechanical elements that allow the introduction and extraction of a slice of bread in a roasting area (9);
    [0038] - thermal heating systems (8) comprising halogens and which are located inside the roasting zone (9);
    [0039] - artificial vision system comprising:
    [0040]
    [0041] or a wide angle lens (3) focused towards the roasting zone (9) and configured to display the entire roasting zone (9);
    [0042]
    [0043] or a camera with a color sensor (4) focused on the roasting area (9).
    [0044] - an insulating glass window (2) arranged between the artificial vision system and the roasting area (9);
    [0045] - lighting system (6) arranged in a lower section of the roasting zone (6) configured to illuminate the roasting zone (9) completely;
    [0046] - lower glass (7) located in a lower section of the roasting zone (9), between said roasting zone (9) and the lighting system, configured to provide thermal insulation to said lighting system:
    [0047] - a toast tone selection interface (10).
    [0048] Where the chamber (4) is connected to a logical processing and control means based on a microcontroller (5) as well as the toasting tone selection interface (10). The insulating glass window (2) allows you to see the entire interior of the roasting area (9) and at the same time provides thermal insulation to the artificial vision system. The camera with color sensor (4) is connected to the wide angle lens.
    [0049] A second aspect of the present invention is the roasting control method in a device as previously described, which comprises at least the following steps:
    [0050] a) use the mechanical means to introduce the toast into the toast zone (9) and activate the heating systems;
    [0051] b) execute a calibration algorithm by means of image processing for the subsequent removal of the mechanical elements in the roasting area of the camera images;
    [0052] c) configure the execution using the desired toast tone selection interface (10);
    [0053] d) activate the heating means (8);
    [0054] e) execute an evaluation algorithm for the degree of toasting that compares the current state of the slice of bread with the tone indicated by the user;
    [0055] The electric bread toaster will be used both in the domestic commercial market and in the professional food sector. The invention can be applied to different models of Toaster, so that the characteristics of the product are adapted to the needs of the final consumer.
    权利要求:
    Claims (1)
    [0001]
    1. Toasting device adapted to the type of bread characterized in that it comprises at least: - mechanical elements that allow the introduction and extraction of a slice of bread in a toast area (9);
    - thermal heating systems (8) located inside the roasting area
    (9);
    - artificial vision system comprising:
    or a wide angle lens (3) focused towards the roasting zone (9) and configured to display the entire roasting zone (9);
    or a camera with a color sensor (4) focused on the roasting area (9).
    - an insulating glass window (2) arranged between the artificial vision system and the roasting area (9);
    - lighting system (6) arranged in a lower section of the roasting zone (6) configured to illuminate the roasting zone (9) completely;
    - lower glass (7) located in a lower section of the roasting zone (9), between said roasting zone (9) and the lighting system, configured to provide thermal insulation to said lighting system;
    - a toast tone selection interface (10).
    2. The device according to claim 1 characterized in that the thermal heating systems (8) comprise halogens that are located inside the roasting zone (9).
    3. The device according to claim 1 characterized in that the camera with color sensor (4) is connected to the wide angle lens (3).
    The device according to claim 1 characterized in that it further comprises a microcontroller (5) connected to the camera with a color sensor (4) and configured to activate the lighting system (6).
    5. The device according to claim 4 characterized in that the microcontroller (5) is connected to the heating heating systems (8) and is configured to turn off said heating heating systems (8) once the bread slice reaches the toast tone indicated by the user through the toast tone selection interface (10).
    6. Roasting control method characterized in that it is carried out in a device such as that described in claims 1 to 5 and in that it comprises at least the following steps: a) use the mechanical means to introduce the toast into the area heating (9); b) execute a calibration algorithm by image processing for the subsequent removal of the mechanical elements in the roasting area of the camera images; c) configure the execution using the desired toast tone selection interface (10); d) activate the heating systems (8);
    e) execute an evaluation algorithm for the degree of toasting that compares the current state of the slice of bread with the tone indicated by the user;
    f) stop the heating heating systems (8) and operate the mechanical elements to eject the toast once the toast tone set by the user has been reached.
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    同族专利:
    公开号 | 公开日
    WO2019238994A1|2019-12-19|
    ES2735313B2|2020-05-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2648865A1|1976-10-28|1978-05-11|Metallgesellschaft Ag|Toaster browning control - consists of two sensors measuring conductivity of toast surface, with amplifier and potentiometer|
    WO2002060302A2|2001-01-30|2002-08-08|Sentec Limited|Smart toaster|
    US20050196046A1|2004-01-30|2005-09-08|Evolution Robotics, Inc.|Vision-enabled household appliances|
    WO2015185211A2|2014-06-05|2015-12-10|Ingo Stork Genannt Wersborg|Heat treatment monitoring system|
    US20160183728A1|2014-09-29|2016-06-30|Momentum Machines Company|Systems and methods for dispensing, slicing, buttering, and toasting bread|
    GB2587788A|2019-07-27|2021-04-14|Michael Davies Philip|AI controlled toasting appliance|
    CN214595581U|2020-04-06|2021-11-05|沙克忍者运营有限责任公司|Cooking system positionable on a support surface|
    法律状态:
    2019-12-17| BA2A| Patent application published|Ref document number: 2735313 Country of ref document: ES Kind code of ref document: A1 Effective date: 20191217 |
    2020-05-07| FG2A| Definitive protection|Ref document number: 2735313 Country of ref document: ES Kind code of ref document: B2 Effective date: 20200507 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201800147A|ES2735313B2|2018-06-15|2018-06-15|Toasting device adaptive to the type of bread|ES201800147A| ES2735313B2|2018-06-15|2018-06-15|Toasting device adaptive to the type of bread|
    PCT/ES2019/070402| WO2019238994A1|2018-06-15|2019-06-11|Toasting device that adapts to the type of bread|
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