The present disclosure relates to a cooking assistant unit and more particularly to a system and method for assisting and supporting efficient and effective cooking on a cooktop along with improving skillsets and experiences arising from the cooking. There is a continual need to improve conventional use of cooktops, such improvements arising from enhancing and easing control of cooktops and foodstuffs cooking in utensils thereon as well as assistance with execution of the steps of meal preparation recipes. The need further extends to a robust application across different cooking appliances and heat generation methods, such methods including but not limited to induction, radiance and gas.
Cooktops find use in both professional and private settings and as used herein shall refer to any cooking appliance for cooking foodstuff, including but not limited to cooktops, free-standing ranges with cooktop surfaces, hoods, microwaves and the like as envisioned by the skilled person. It is not uncommon for the professional chef to multitask among a plurality of dishes in various states of simultaneous preparation and cooking on a cooktop surface. A direct consequence is a chef's divided attention which in turn may lead to delayed or forgotten performance of a next recipe step. As a result, the prepared dishes may suffer in quality while kitchen operations and moral may suffer. Accordingly, the professional chef would benefit from assistance with a state of foodstuff preparation, enhanced control of the heat generation in the cooktops and reminders of current and next recipe steps. The same may apply, albeit to different degrees, to the home chef. Further, many chefs may not be in possession of certain useful equipment such as temperature sensors for determining the temperature of a foodstuff under preparation, sufficient understanding of more complex cooktops to enable adequate use thereof, sufficient understanding of eminent hazardous situations along with their prevention and/or suppression, and so forth. Likewise, many current such temperature sensors comprise invasive probes requiring direct contact with the foodstuff, the direct contact possibly interfering with the preparation and/or damaging of the foodstuff, utensil cooktop and the like.
Accordingly, there is a need to assist and support a chef operating a cooktop surface with appropriate and useful information on a current status of specific foodstuff cooking on a cooktop surface, current and/or next applicable recipe along with progress therewith as applied to specific foodstuff cooking and the like.
A number of solutions have been proposed in the art to affect the aforementioned. For example, Bach, in U.S. Pat. No. 9,109,805, proposes a range hood 115 including a number of temperature sensors 120, arranged in the range hood and positioned in either a one to one relationship with heating elements 105 on a cooktop surface 110 (see
Kamei, in U.S. patent application Ser. No. 15/477,192, is directed to a cooking support system 100 that monitors cooking surface temperatures with the aid of: control device 110, processing unit 190, light emitter 191, camera 192 and overhead infrared sensor 193; all of which are positioned overhead from the cooktop 300. In operation, Kamei uses camera 192 to capture an image of a cooking surface including any cookware 400 that may be positioned thereon. The IR sensor is then used to detect a temperature of each cooking surface including any cookware atop the cooking surface. The temperature and location of temperature are fed to the processing unit which, in turn, is then used to recognized when portions of the cookware may be overheating. Upon detection of a dangerous condition, a warning to the cooktop operator is triggered via the light emitter emitting a particular warning light onto the cooktop. Here, Kamei particularly measures portions of cookware edges and compares such measured temperatures with predetermined thresholds, the exceeding of which becomes indicative of the warning situation. Kamei, like Bach, focuses on dangerous situation detections and providing warnings and remedial actions therefor rather than assistance and support with meal preparation and control of foodstuff cooking therefor.
Johnson, in U.S. patent application Ser. No. 14/924,900, is directed to a cooktop appliance 12 including a cooking surface 14 with heating elements 16 arranged to heat up cooking utensils 18. A cookware temperature sensor 28 and food sensor 30 associated with the cookware are further included whereby the food sensor is a probe which is physically positioned within the utensil 18 to physically engage foodstuff therein. Accordingly, the sensor determines the temperature of the food. As with the aforementioned references, Johnson focuses on dangerous situations which, as may be the case here, may result in burnt food. Accordingly, measurements of both the different temperatures of the food and the utensil are taken and compared with a threshold. Exceeding the threshold is understood to be a warning situation necessitating remedial measures such as reducing the heat being generated under the particular food and utensil. Unlike Bach and Kamei, temperature sensing in Johnson is not performed overhead and in a contactless manner. Like Back and Kamei, Johnson is not directed to assistance and support with meal preparation and control of foodstuff cooking therefor.
Accordingly, embodiments of the present disclosure are provided to substantially obviate one or more of the problems arising out of the limitations and disadvantages of the related art in providing robust solutions including providing a cooking assisting unit having, as may be dependent upon embodiment, a temperature sensor for detecting temperature at a distance, a time of flight detector for detecting the presence or absence of a utensil and a level of liquid in a present utensil, a digital light processor for generating and displaying a visible image of real time cooking information at and on the cooktop surface and foodstuff in particular, and a communication module, integrated into a sensor or as a standalone, configured to determine certain real time cooking information to be included in the displayed message as well as download recipes and determine current and subsequent recipe steps based upon current detected conditions.
The real time cooking information may include: the current foodstuff or utensil temperature, countdown to and identification of a next recipe step, warning or alarm about a dangerous or eminently dangerous situations, a presence and absence of the utensil and other information as detailed hereinbelow.
The communication module may further be in communication with the cooktop and external information sources, the former for communicating desired and actual temperatures of heat applied to a particular foodstuff under preparation and the latter for communicating recipes and various steps thereof in particular. The communication may be wired or wireless.
The cooking assisting unit may be mounted in a vent hood or in a swing arm. The temperature sensor may comprise one or more IR sensors, the time of flight sensor may comprise one or more sensors operating in the infrared and the digital light processor may be laser based. The sensors may also comprise sensor arrays. The cooking assisting unit may be applied across different cooking appliances and heat generation methods, such methods including but not limited to induction, radiance and gas. Such cooking appliances may include cooktops, free standing ranges with cooktops on top, hood, microwave ovens and the like.
The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate exemplary embodiments and, together with the description, serve to explain the disclosed principals.
The technology described herein finds application in assisting and supporting food preparation on a cooktop surface comprising one or more heating sources. Typically, a utensil used in the food preparation is brought proximate to the heat source so that heat is transferred from source to utensil. Foodstuff, any substance that is used as food or to make a meal, may be accommodated with or in the utensil with the transferred heat facilitating operation on the foodstuff, namely, foodstuff placed in a utensil on a heating source is cooked for a particular amount of time and temperature such that the foodstuff attains certain states as may be according to meal preparation recipes and the like.
Effective operation of the cooktop, foodstuff preparation and any underlying recipes steps (current and next) are essential for the preparation of a good meal. Accordingly, advantageous features of the present embodiments include effective and timely imparting of required and useful information to the chef regarding the aforementioned and other conditions of importance to effective cooking. Such knowledge should be readily, quickly and easily available to and understood by the chef. Embodiments of the present disclosure are thus directed to appropriate displays in select locations of relevant information, first examples of which are depicted in
The cooking assisting unit 100 comprises at least one temperature sensor and at least one digital light processor (DLP) assembly 110. The temperature sensor may be a remote and contactless temperature sensor operating in the infrared and the DLP may operate by laser. At least one processor is included in the cooking assisting unit 100, the processor being optionally arranged on a single board computer. Examples of known single board computers include the Beagleboard series available from Texas Instruments and Raspberry PI series available from the Raspberry PI Foundation. The processor is arranged in communication with the cooktop controls such that heat generation information, such as temperature settings inputted into the cooktop, are communicated with the processor for subsequent consideration including comparison with an actual temperature of a foodstuff under preparation by the cooktop inputted temperature setting. The comparison may then further be used in a feedback loop to adjust the temperature input setting of the cooktop by the processor such that the foodstuff temperature reaches a desired level. The temperature sensor is arranged in electrical communication with the processor via the board upon which the processor is mounted such that output from the temperature sensor may be received and processed at and by the processor and the board in turn may power the temperature sensor. Such an arrangement may be made by appropriate connection of temperature sensor pins with board's input/output (I/O). The DLP is also arranged in electrical communication with the processor such that an image generated by the processor may then be selectively displayed at a select location outside the cooking assisting unit 100 by the DLP. The select location may include the cooktop surface, utensil, foodstuff, nearby wall or surface and the like. The DLP may comprise a plurality of pins arranged in a matrix that line up with expansion headers of single board computers facilitating a plug-in arrangement. Other connection arrangements between and among the aforementioned may be made as envisioned by the skilled person.
In another embodiment, the cooking assisting unit 100 further comprises at least one time of flight (ToF) sensor arranged in electrical communication with the processor in a similar manner as per the aforementioned. Output from the ToF sensor may be received and processed by the processor in the generation of the aforementioned image. The ToF sensor is arranged above the cooktop surface such that a location for a utensil falls within a line of sight of the ToF sensor and the ToF sensor may then in turn generate an output based upon a detected reflection, the output being subsequently processed to determine whether the utensil is present and a level of any liquid accommodated within the present utensil. Such output may be obtained over time such that, for example, a rate of change of liquid within the utensil can be determined. Example application of the aforementioned include monitoring an increase in fluid levels due to boiling, the increase potentially leading to an undesired boil over. Additionally, fluid level reduction as may occur from sauce reduction may also be monitored, the decrease potentially leading to an undesired evaporation/disappearance or destruction of the sauce. Other distances may also be determined, such as a distance between utensil or liquid and cooking assisting unit.
The sensors and/or DLP may comprise individual standalone components mounted on individual circuit boards or may be arranged in combination on a single circuit board. Cooktop 102 is depicted as a typical household appliance though may comprise any suitable apparatus for generating heat applicable for cooking foodstuff which includes communication capabilities with the aforementioned processor. Such may include free standing range with cooktop on top, hood, microwave and the like. Heat generation may include resistance, induction, radiance, gas and the like as would be applied by the skilled person. The utensils 106 are depicted as common variety pots and pans for illustrative purposes.
In still another embodiment, the cooking assisting unit 100 may include a communication module arranged in electrical connection with the processor and configured to download meal preparation recipes (and steps thereof) to the processor which may then compare current detected meal preparation steps of a particular recipe with the actual recipe steps themselves thereby leading to a determination of a current and next step, the information therefrom then also being selectively introduced into the image. The information may include images of foodstuff in various stages of preparation along with alphanumeric characters, colors and the like. The process may be arranged, configured and programmed to affect the aforementioned as envisioned by the skilled person.
Returning to
With respect to infrared (IR) sensors, the area to be measured (i.e., the target) should at least fill the instrument's field of view and ideally largely overlap. For example, as depicted in
With reference to
Operation of a temperature sensor in a kitchen environment is depicted in
A functional depiction of a DLP is set out in
In an embodiment and with general reference to
Functionally, the ToF sensor may operate to statically determine a single liquid level in a single point in time; or non-statically determine a change in level height over a period of time. The distance to the liquid level at a particular time may be determined by analyzing the time difference between the time of emission, signal 171, and time of receipt of a particular reflection or return signal (173, 175, 177, 179, 188) to the sensor 180 after being reflected by the respective surface level of liquid (176, 178, 181, 183, 190). A number of different analysis may be applied for this calculation without departing from the spirit of the present embodiments. One such calculation entails multiplying the speed of the infrared light times the time of flight (to and from the liquid surface) and then divide the product by 2. Timer 174 may be employed to start during the exit of the infrared light and run until the respective return reflection is detected. The aforementioned processor may be appropriately configured and programmed to affect the aforementioned.
As depicted in
As depicted in
The order of the elements accommodated within cooking assisting unit 100 are set out in an illustrative order. Board 318 may comprise the aforementioned single board computer arranged and configured to facilitate electrical communication with other elements housed within the cooking assisting unit 100 as well as with external devices by virtue of wireless communication. A sensor board 310 is further arranged to be in electrical communication with board 318 facilitating, together with board 310, accommodation and operation of the aforementioned sensors, including the temperature sensor and time of flight sensor (not shown). As such, the sensors may be individually mounted on separate boards or collectively arranged on a single board.
Returning to
Other features may be included and/or substituted as would be understood by the skilled person. Forms and adhesive gaskets typically used for accommodating components in a housing are not shown for clarity purposes but would nonetheless be understood by the skilled person to be included and arranged within the cooking assisting unit 100.
In operation, the cooking assisting unit projects and displays images comprising the real time cooking information on at least one of the cooktop surface, utensil and foodstuff. The real time cooking information including but not limited to the following alone or in combination: foodstuff temperature, a cooking time, a meal recipe step, cooktop surface temperature, liquid level indicia, alarms, images of foodstuff in various stages of preparation, colors, alpha-numeric characters, other images and the like. The foodstuff may be located in the utensil or elsewhere on the cooktop surface as may be required by its current recipe and/or the imagination of the chef.
By way of example and starting with
In
A method for supporting foodstuff preparation is set out in
A further method embodiment is depicted
The communication functionality of the present embodiments may comprise network and communication chips, namely, semiconductor integrated circuits that use a variety of technologies and support different types of serial and wireless technologies as envisioned by the skilled person. The processor functionality of the present embodiments may be disposed in communication with one or more memory devices, such as a RAM or a ROM, via a storage interface. The storage interface may connect to memory devices including, without limitation, memory drives, removable disc drives, etc., employing connection protocols such as serial advanced technology attachment, integrated drive electronics, IEEE-1394, universal serial bus, fiber channel, small computer systems interface, etc. The memory drives may further include a drum, magnetic disc drive, magneto-optical drive, optical drive, redundant array of independent discs, solid-state memory devices, solid-state drives, etc. The memory devices may store a collection of program or database components, including, without limitation, an operating system, a user interface application, a user/application data (e.g., any data variables or data records discussed in this disclosure), etc.
It will be appreciated that, for clarity purposes, the above description has described embodiments of the technology described herein with reference to different functional units and processors. However, it will be apparent that any suitable distribution of functionality between different functional units may be used without detracting from the technology described herein. Hence, references to specific functional units are only to be seen as references to suitable means for providing the described functionality, rather than indicative of a strict logical or physical structure or organization.
The specification has described systems and methods for improving use of cooktops arising from attention to safety and foodstuff preparation by way of display and communication of real time cooking information. The illustrated steps are set out to explain the exemplary embodiments shown, and it should be anticipated that ongoing technological development will change the manner in which particular functions are performed. These examples are presented herein for purposes of illustration, and not limitation. Further, the boundaries of the functional building blocks have been arbitrarily defined herein for the convenience of the description. Alternative boundaries can be defined so long as the specified functions and relationships thereof are appropriately performed. Alternatives (including equivalents, extensions, variations, deviations, etc., of those described herein) will be apparent to persons skilled in the relevant art(s) based on the teachings contained herein. Such alternatives fall within the scope of the disclosed embodiments.
It is intended that the disclosure and examples be considered as exemplary only, with a true scope of disclosed embodiments being indicated by the following claims.
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/US2020/065866 | 12/18/2020 | WO |
Number | Date | Country | |
---|---|---|---|
63087975 | Oct 2020 | US |