KR20230158772A - Apparatus and method for recognizing a cooking situation - Google Patents

Abstract

A cognitive device is provided. The recognition device includes a sensing unit that detects surrounding information of the cooking appliance; and a recognition unit that recognizes whether or not cooking is done using the cooking appliance using the surrounding information, and the sensing unit may acquire the surrounding information on its own without involvement of the cooking appliance.

Description

Apparatus and method for recognizing a cooking situation}

The present invention relates to a device that recognizes the cooking status of an electric range or gas range.

Interest related to indoor air quality is increasing.

Indoor air quality can be worsened by various pollutants such as fine dust generated during the cooking process of food.

To address the deterioration of air quality caused by cooking, a range hood can be used to suck in contaminants generated during the cooking process and discharge them to the outside.

Korean Registered Utility Model Publication No. 0309857 states that if an infrared transmitting device for remote control is installed in a kitchen cooking appliance and an infrared receiving device for remote control is installed in a kitchen range hood and the cooking appliance is activated when cooking food in the kitchen, In addition, a technology is being introduced that automatically operates a kitchen range hood to ventilate surrounding odors to the outside.

Korea Registered Utility Model Publication No. 0309857

The present invention is intended to provide a recognition device and method for recognizing whether an electric range or a gas range is cooking or predicting a cooking situation.

The recognition device of the present invention includes a sensing unit that detects surrounding information of a cooking appliance; and a recognition unit that recognizes whether or not cooking is done using the cooking appliance using the surrounding information, and the sensing unit may acquire the surrounding information on its own without involvement of the cooking appliance.

The sensor may be disposed on an imaginary line extending from an outer edge of the cooking appliance or an outer side of the cooking appliance in a direction opposite to gravity.

The detection unit may include at least one of a first detection means for measuring the surrounding temperature and a second detection means for measuring the degree of surrounding pollution.

The recognition method of the present invention includes a detection step of detecting surrounding information of a cooking appliance; A recognition step of recognizing whether or not to cook using the cooking appliance using the surrounding information; A prediction step of predicting a cooking level of the cooking appliance using the surrounding information; A control step of controlling the air volume of the range hood disposed above the cooking appliance according to the recognition result of the recognition step or the prediction result of the prediction step, wherein the detection step is performed by itself without the involvement of the cooking appliance. You can obtain information about your surroundings.

The recognition device and recognition method of the present invention can recognize whether cooking is done using the temperature around the cooktop.

The present invention can determine whether cooking has occurred by distinguishing between a gas range and an electric range that show differences in temperature changes. Through this, it is possible to accurately determine whether each cooktop is cooking.

According to the present invention, the sources needed to analyze the current cooking situation and cooking level can be distinguished depending on the gas range and the electric range.

For example, in the case of a gas range whose temperature changes rapidly, the current cooking level can be predicted using the surrounding temperature along with the surrounding pollution level. On the other hand, in the case of an electric range where temperature changes occur relatively gently, the current cooking level can be predicted using only the surrounding pollution level, excluding the surrounding temperature.

According to the present invention described above, cooking status and cooking level can be accurately determined according to the gas range or electric range. The cooking status information and cooking level information identified in this way can be effectively used to reduce indoor pollution caused by cooking. For example, cooking status information and cooking level information can be applied to the control of a range hood that sucks in contaminants such as smoke propagating to the top of the cooktop and discharges them to the outside.

In particular, the recognition device of the present invention can independently obtain cooking status information and cooking status information without receiving it from the cooktop. According to this, the cognitive device of the present invention can be applied to a previously installed cooktop with the cognitive device and communication function excluded.

1 is a schematic diagram showing a recognition device of the present invention.
Figure 2 is a perspective view showing the arrangement position of the sensing means.
Figure 3 is a plan view showing the arrangement position of the sensing means.
Figure 4 is a flowchart showing the recognition method of the present invention.
Figure 5 is a schematic diagram showing the operation of the recognition unit.
Figure 6 is a schematic diagram showing the process of calculating the first value.
Figure 7 is a schematic diagram showing another operation of the recognition unit.
Figure 8 is a schematic diagram showing the operation of the prediction unit.
Figure 9 is a schematic diagram showing another operation of the prediction unit.
10 is a diagram illustrating a computing device according to an embodiment of the present invention.

Below, with reference to the attached drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

In this specification, duplicate descriptions of the same components are omitted.

Also, in this specification, when a component is mentioned as being 'connected' or 'connected' to another component, it may be directly connected or connected to the other component, but may be connected to the other component in the middle. It should be understood that may exist. On the other hand, in this specification, when it is mentioned that a component is 'directly connected' or 'directly connected' to another component, it should be understood that there are no other components in between.

Additionally, the terms used in this specification are merely used to describe specific embodiments and are not intended to limit the present invention.

Also, in this specification, singular expressions may include plural expressions, unless the context clearly dictates otherwise.

In addition, in this specification, terms such as 'include' or 'have' are only intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and one or more It should be understood that this does not exclude in advance the presence or addition of other features, numbers, steps, operations, components, parts, or combinations thereof.

Also, in this specification, the term 'and/or' includes a combination of a plurality of listed items or any of the plurality of listed items. In this specification, 'A or B' may include 'A', 'B', or 'both A and B'.

Additionally, in this specification, detailed descriptions of well-known functions and configurations that may obscure the gist of the present invention will be omitted.

1 is a schematic diagram showing a recognition device of the present invention.

The recognition device shown in FIG. 1 may include a detection unit 110, a recognition unit 130, a prediction unit 150, and a control unit 170.

As shown in FIG. 1, the detection unit 110, recognition unit 130, prediction unit 150, and control unit 170, which constitute the recognition device, do not communicate with the cooktop 10 (cooktop). A state of disconnection and independence can be maintained. This may mean that any information provided from the cooktop 10 is unnecessary for the operation of the cognitive device. This may mean that the recognition device of the present invention can be applied to various cooktops 10.

The cooktop 10 may include a gas range that heats the cooking container 30 using gas, and an electric range that heats the cooking container 30 using electricity.

The sensing unit 110 may be used to determine whether cooking is done or the cooking level in an environment in which no information is provided from the cooktop 10.

The detection unit 110 can detect surrounding information of the cooking appliance. The surrounding information may include the temperature around the cooking device, the degree of pollution around the cooking device, etc.

The sensing unit 110 can directly acquire surrounding information on its own without the involvement of a cooking appliance. To this end, the sensing unit 110 may include various sensing means for detecting surrounding information.

As an example, the detection unit 110 may be provided with at least one of the first detection means 111 and the second detection means 112.

The first sensing means 111 may include a temperature sensor that measures the surrounding temperature based on the placement location. For example, the first sensing means 111 may include a thermometer that measures the temperature of the current location, an infrared detector that aims at the cooktop and measures the surface temperature of the cooktop, a thermal imager, etc.

The second detection means 112 may include a pollution sensor that measures the surrounding pollution level based on the placement location. Ambient pollution may include concentration of fine dust, concentration of sulfur dioxide, concentration of carbon dioxide, concentration of carbon monoxide, etc.

In order for the ambient temperature and the surrounding pollution level to be related to the cooking appliance, the placement position of the first sensing means 111 or the second sensing means 112 is maintained at a distance that includes the cooking device within the detection range of each sensing means. good night.

Figure 2 is a perspective view showing the arrangement position of the sensing means. Figure 3 is a plan view showing the arrangement position of the sensing means.

The detection unit 110 may be disposed on an outer edge of the cooking appliance or an imaginary line extending from the outer side of the cooking appliance in a direction opposite to gravity.

One or more cooking pots 11 that substantially generate heat may be provided on the cooktop 10.

At this time, the first position p1 corresponding to the arrangement position of the first sensing means 111 and the second position p2 corresponding to the arrangement position of the second sensing means 112 are preferably formed at the corners of the entire cooktop 10. . The first location and the second location may be spaced apart from the cooking appliance.

In general, smoke caused by cooking on the cooktop 10 rises upward. Accordingly, a range hood 90 that absorbs contaminants such as smoke may be placed above the cooktop 10. In plan view, the range hood 90 is placed at the center o of the cooktop 10. In this case, each corner of the cooktop 10 corresponds to an area that is not interfered with by the fan of the range hood 90. It can be.

The recognition unit 130 may recognize whether or not food is cooked using the temperature measured by the first detection means 111 disposed at the first position p1. In other words, the recognition unit 130 can determine whether cooking has started or has not yet started using only the temperature around the cooking device.

The recognition unit 130 can evenly divide the cooking utensils into a set number in a two-dimensional manner. At this time, the first sensing means 111 can measure the temperature of each equally divided area at an upper position away from the cooking utensil.

The first sensing means 111 can measure the temperature for each area for a unit time. For example, when the unit time is 2 seconds, the first sensing means 111 may measure the temperature of each area for a unit time of 2 seconds and obtain at least one measurement value for each area. Accordingly, if there are a total of four divided areas, at least a total of four temperature values can be obtained during unit time.

The recognition unit 130 may extract the highest effective temperature among a plurality of temperatures measured in a specific area during unit time. For example, if 1 degree, 1.1 degree, 1.2 degree, and 1.3 degree are detected during a specific 2 second period, the recognition unit 130 may extract 1.3 degree as the effective temperature of the specific 2 second period.

The recognition unit 130 can recognize whether or not a specific area is cooked using a plurality of effective temperatures extracted during a set time. The set time may include a time greater than the unit time, for example, 10 seconds. If the setting time is 10 seconds and the unit time is 2 seconds, a total of 5 effective temperatures can be obtained during the setting time. The recognition unit 130 can recognize whether a specific area is cooked using five effective temperatures.

In the case of FIG. 3, the upper surface of the cooktop 10 may be divided into four areas a, b, c, and d in plan view. The recognition unit 130 can recognize whether or not each area is cooked. If it is determined that cooking has started in any one of the plurality of areas, the recognition unit 130 may recognize the cooking start state. The recognition unit 130 may recognize that cooking has not started only when all areas are determined to be non-cooking.

The prediction unit 150 may predict the cooking level of the cooking appliance using the surrounding pollution level measured by the second detection means 112.

The control unit 170 may control the range hood 90 according to the prediction result of the prediction unit 150.

Figure 4 is a flow chart showing the recognition method of the present invention.

The recognition method of FIG. 4 can be performed by the recognition device shown in FIG. 1.

The recognition method may include a detection step (S 310), a recognition step (S 320), a prediction step (S 330), and a control step (S 340).

The detection step (S310) may detect surrounding information of the cooking appliance. The detection step (S310) may be performed by the detection unit 110. The detection step (S 310) can independently acquire surrounding information without the involvement of the cooking appliance.

In the recognition step (S320), whether cooking is done using a cooking device can be recognized using surrounding information. The recognition step (S320) may be performed by the recognition unit 130.

In the prediction step (S330), the cooking level of the cooking appliance can be predicted using the surrounding information. The prediction step (S330) may be performed by the prediction unit 150.

In the prediction step (S330), if the cooking device is a gas range, the cooking level can be predicted using the temperature measured by the first sensing means 111 and the contamination level measured by the second sensing means 112.

In the prediction step (S330), if the cooking device is an electric range, the cooking level can be predicted using the contamination level measured by the second detection means 112 among the first detection means 111 and the second detection means 112. there is. At this time, the prediction step (S330) may not use the temperature measured by the first sensing means 111 (not used).

The control step ( S 340 ) may control the air volume of the range hood 90 disposed above the cooking appliance according to the recognition result of the recognition step ( S 320 ) or the prediction result of the prediction step ( S 330 ). The control step (S340) may be performed by the control unit 170.

The recognition device and recognition method discussed above will be described in detail.

Figure 5 is a schematic diagram showing the operation of the recognition unit 130.

The recognition unit 130 can use the surrounding information sensed by the detection unit 110 (S 511) to recognize or determine whether cooking was done using a cooking device.

As an example, if the first value Tp calculated using the measured value of the first sensing means 111 is greater than or equal to the first temperature (S 513), the recognition unit 130 may recognize the cooking state as having started cooking (S 514).

If the first value Tp is less than the first temperature (S 513), the recognition unit 130 may recognize the non-cooked state (S 517).

In the drawing, the first temperature may be 50 degrees.

In order to calculate the optimal value of the first temperature, the recognition unit 130 may additionally obtain room temperature data.

The recognition unit 130 may set the lowest temperature within a range that satisfies both the first condition and the second condition as the first temperature.

The first condition may be satisfying the range of 50 to 100 degrees.

The second condition may be satisfying a temperature range that is higher than room temperature by the classification temperature. For example, the temperature around the first sensing means 111 may be maintained at 60 degrees due to the operation of a heater, etc. In this situation, if only the first condition is applied, 50 degrees is satisfied, so the range hood 90 can be operated even though the cooktop 10 is not in operation. To resolve this irrationality, the recognition unit 130 can determine the room temperature through a different temperature sensor that is different from the first sensing means 111.

If the room temperature is determined to be 60 degrees, the recognition unit 130 can recognize the food as uncooked even if the first condition is satisfied. In this state, when cooking through the cooktop 10 begins, the temperature rises, and when the rising temperature rises by more than the set value (categorization temperature), for example, 10 degrees, compared to room temperature, the recognition unit 130 detects the start of cooking. It can be recognized as a state.

When the range hood 90 is provided to suck in contaminants generated during the cooking process and discharge them to the outside, the control unit 170 can control the range hood 90 having a plurality of air volume levels.

For example, when the control unit 170 recognizes that cooking has started (S 514), it may operate the range hood 90 at a low speed (S 515).

If the control unit 170 recognizes the non-cooking state (S 517), the control unit 170 may disable the range hood 90 (S 518).

The above first value Tp may be the same as the measurement value measured by the first detection sensor. Alternatively, the first value may include a value calculated by the recognition unit 130. For example, the recognition unit 130 may calculate the average value of a plurality of effective temperatures obtained during a set time as the first value Tp.

A plurality of effective temperatures may be obtained for each unit of time smaller than the set time. In the previous example, the setting time is 10 seconds and the unit time is 2 seconds.

Figure 6 is a schematic diagram showing the process of calculating the first value.

The recognition unit 130 may acquire a plurality of temperatures during a set time (S 591). At this time, the number n of temperatures acquired during the set time is n=10÷2=5 when the set time is 10 seconds and the unit time (=time interval) is 2 seconds. When the n value is below the decimal point, n can be a rounded natural number.

If a plurality of temperatures are obtained per unit time from the first sensing means 111, the recognition unit 130 can extract and calculate one effective temperature for each unit time (S 592). At this time, the effective temperatures T1, T2, T3, ...,Tn may correspond to the largest temperature among the temperatures obtained during each unit time. For example, if 5 temperatures are obtained for the first 2 seconds, the recognition unit 130 can calculate, extract, and set the largest temperature among the 5 temperatures as the effective temperature T1 for the first 2 seconds.

The recognition unit 130 may calculate the average value Taverage of a plurality of effective temperatures obtained during a set time and calculate the standard deviation σ (S 593).

The recognition unit 130 may exclude outliers from among the plurality of effective temperatures obtained during a set time. For example, the recognition unit 130 may remove the outlier value Tt (where t may be greater than 1 and less than n) among the n effective temperatures (S 594) through comparison with the standard deviation (S 597). .

The recognition unit 130 calculates an average value based on only the effective temperatures remaining after excluding outliers (S 595), and the average value of the effective temperatures with outliers excluded may correspond to the first value Tp. In FIG. 6, k may be an integer greater than 0.

In the above embodiment, the recognition unit 130 recognizes whether or not food is cooked using only the first temperature. Alternatively, the recognition unit 130 may recognize whether or not food is cooked using the second temperature and temperature change.

Figure 7 is a schematic diagram showing another operation of the recognition unit 130.

The recognition unit 130 determines that the first value Tp calculated using the measured value of the first detection means 111 (S611) is greater than or equal to the second temperature (S613), and corresponds to the difference between the plurality of first values Tp. If the temperature change (Tp_t+30-Tp_t) is greater than or equal to the set change value (S 614), the cooking state can be recognized as having started (S 615).

The recognition unit 130 may recognize the food as uncooked if the first value Tp is less than the second temperature or the temperature change is less than the set change value (S 617). In the drawing, the second temperature may be 30 degrees (S 613), and the set change value may be 10 degrees (S 614).

When the control unit 170 recognizes that cooking has started (S 615), it can operate the range hood 90 at a low speed (S 616).

If the control unit 170 recognizes the non-cooking state (S 617), the control unit 170 may disable the range hood 90 (S 618).

The recognition unit 130 can recognize cooking status through a plurality of methods, which can be distinguished depending on the type of cooking device.

The recognition unit 130 may operate in the first mode or the second mode depending on the measured value of the first sensing means 111 and the type of cooking appliance.

In the first mode, the recognition unit 130 recognizes the cooking state as the start of cooking when the first value Tp calculated using the measured value of the first detection means 111 is greater than or equal to the first temperature, and the first value is the first temperature. If the temperature is below 1, it can be recognized as uncooked.

In the second mode, the recognition unit 130 may recognize a cooking state in which cooking has started if the first value is greater than or equal to the second temperature and the temperature change corresponding to the difference between the plurality of first values is greater than or equal to the set change value. In the second mode, the recognition unit 130 may recognize the food as uncooked if the first value is less than the second temperature or the temperature change is less than the set change value.

At this time, the recognition unit 130 may operate in the first mode if the cooking appliance is a gas range. In the case of a gas range, the temperature tends to increase rapidly upon initial operation. Therefore, temperature change is meaningless because it always remains true. Therefore, in the case of a gas range, the main effective factor in determining whether cooking is done may be limited to whether the first temperature is satisfied.

The recognition unit 130 may operate in the second mode if the cooking appliance is an electric range. In the case of electric ranges, the temperature rise tends to be gradual compared to gas ranges. In the case of an electric range, the time required to satisfy the first temperature may be longer due to a gradual temperature increase compared to a gas range. In other words, if the first temperature is used to determine whether an electric range is cooking, it may take longer to determine whether a gas range is cooking.

In order to shorten the time required to determine whether or not the electric range is cooking, it is better to set a second temperature lower than the first temperature in the case of an electric range. If a second temperature lower than the first temperature is used, the likelihood of being recognized as cooking may increase even though it is not in a cooking state. In the case of electric ranges, temperature changes can be additionally used to correct this recognition error. Since the temperature change of an electric range tends to increase gradually compared to that of a gas range, it can be fully utilized as an indicator of whether cooking is done.

Figure 8 is a schematic diagram showing the operation of the prediction unit 150.

The prediction unit 150 can basically predict the cooking level using the surrounding pollution level. Cooking levels can be classified from low to high contamination, boiling, frying, baking, etc.

If the cooking device is a gas range, the prediction unit 150 may additionally obtain the measured value of the first detection means 111.

The prediction unit 150 determines that the first value Tp calculated using the measured value of the first sensing means 111 is greater than or equal to the third temperature (S 531), and the measured value of the second sensing means 112, Cpm2.5 ( If the concentration of fine dust is higher than the first pollution level (S 532), the cooking level of the cooking device can be predicted to be high-emission cooking (S 533). The third temperature may be set higher than the temperature at which water boils. In Figure 8, the third temperature may be 110 degrees. In Figure 8, the first contamination level may be 100 μg/m3.

If the first value Tp is greater than or equal to the third temperature (S 531) and the measured value of the second detection means 112 is less than the first contamination level (S 532), the prediction unit 150 predicts the cooking level as medium-emission cooking. Yes (S 538).

If the first value Tp is less than the third temperature (S531), the prediction unit 150 may predict the cooking level as low-emission cooking regardless of the measured value of the second detection means 112 (S537).

The prediction unit 150 may be operated after the cooking state in which cooking has started is recognized. If the cooking state is determined by the prediction unit 150, the control unit 170 can control the air volume of the range hood 90 to a low level. In this state, the prediction unit 150 operates, and the control unit 170 can change or maintain the air volume of the range hood 90 according to the result.

For example, if the prediction unit 150 predicts a high-emission cooking level (S 533), the control unit 170 may control the air volume of the range hood 90 disposed on the upper side of the cooking appliance to the maximum level (S 534).

If the prediction unit 150 predicts a medium-emission cooking level (S 538), the control unit 170 may control the air volume of the range hood 90 to stop (S 539).

If the low-emission cooking level is predicted by the prediction unit 150 (S537), the control unit 170 may control the air volume of the range hood 90 to a low level. Since the air volume of the range hood 90 is already controlled to a low level in the prediction unit 150, it is sufficient for the control unit 170 to simply maintain the low air volume of the range hood 90 in the case of a low-emission cooking level. .

When the amount of change in the first value Tp becomes less than 0, the prediction unit 150 may perform prediction of the cooking level again (S535).

Figure 9 is a schematic diagram showing another operation of the prediction unit 150.

If the cooking appliance is an electric range, the prediction unit 150 can predict the cooking level using only the contamination level obtained through the second detection means 112 while excluding the temperature around the cooking appliance.

When the recognition unit 130 recognizes that cooking in the electric range has started, the control unit 170 may control the air volume of the range hood 90 disposed above the electric range to a low level during a preset preparation time.

When the preparation time ends, the control unit 170 can control the air volume of the range hood 90 to stop (S631).

In a state where the air volume of the range hood 90 is controlled to stop by the control unit 170, the prediction unit 150 determines if the measured value Cpm2.5 of the second detection means 112 is greater than or equal to the second pollution level (S 632 ) The cooking level of the cooking device can be predicted by high-emission cooking (S 633). The second pollution level may be set to be the same as the first pollution level. Of course, it is reminded that the second pollution degree may be different from the first pollution degree.

In a state where the air volume of the range hood 90 is controlled to stop by the control unit 170, the prediction unit 150 detects that if the measured value of the second detection means 112 is less than the second pollution level (S 632), the cooking appliance The cooking level can be predicted by medium-emission cooking (S 637).

If a high-emission cooking level is predicted (S633), the control unit 170 can control the air volume of the range hood 90 to the maximum level (S634).

If the medium emission cooking level is predicted (S 637), the control unit 170 may control the air volume of the range hood 90 to stop (S 638).

When the amount of change in the first value Tp becomes less than 0, the prediction unit 150 may perform prediction of the cooking level again (S635).

The recognition device described above may be installed in one of the range hood 90, a cooking appliance, a server that controls the range hood or cooking appliance, or a separate terminal. Considering the ability of the cooking device to sense surrounding information on its own, it is preferable that the recognition device be installed in devices other than the cooktop.

10 is a diagram illustrating a computing device according to an embodiment of the present invention. Computing device TN100 of FIG. 10 may be a device (e.g., cognitive device, etc.) described herein.

In the embodiment of FIG. 10, the computing device TN100 may include at least one processor TN110, a transceiver device TN120, and a memory TN130. Additionally, the computing device TN100 may further include a storage device TN140, an input interface device TN150, an output interface device TN160, etc. Components included in the computing device TN100 are connected by a bus TN170 and may communicate with each other.

The processor TN110 may execute a program command stored in at least one of the memory TN130 and the storage device TN140. The processor TN110 may refer to a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which methods according to embodiments of the present invention are performed. Processor TN110 may be configured to implement procedures, functions, and methods described in connection with embodiments of the present invention. The processor TN110 may control each component of the computing device TN100.

Each of the memory TN130 and the storage device TN140 can store various information related to the operation of the processor TN110. Each of the memory TN130 and the storage device TN140 may be comprised of at least one of a volatile storage medium and a non-volatile storage medium. For example, the memory TN130 may be comprised of at least one of read only memory (ROM) and random access memory (RAM).

The transceiving device TN120 can transmit or receive wired signals or wireless signals. The transmitting and receiving device (TN120) can be connected to a network and perform communication.

Meanwhile, the embodiments of the present invention are not only implemented through the apparatus and/or method described so far, but may also be implemented through a program that realizes the function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded. This implementation can be easily implemented by anyone skilled in the art from the description of the above-described embodiments.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements made by those skilled in the art using the basic concept of the present invention defined in the following claims are also possible. It falls within the scope of invention rights.

10...cooktop 11...burner
30...Cooking container 90...Range hood
110...sensing unit 111...first sensing means
112...Second detection means 130...Recognition unit
150...prediction unit 170...control unit

Claims (20)

A sensing unit that detects surrounding information of the cooking appliance;
It includes a recognition unit that recognizes whether or not cooking is done using the cooking appliance using the surrounding information,
The sensing unit is a recognition device that acquires the surrounding information on its own without involvement of the cooking appliance.
According to paragraph 1,
The sensing unit is disposed on an imaginary line extending from an outer edge of the cooking appliance or an outer side of the cooking appliance along a direction opposite to gravity,
The detection unit is a recognition device that includes at least one of a first detection means for measuring the surrounding temperature and a second detection means for measuring the degree of surrounding pollution.
According to paragraph 1,
A first sensing means disposed at a first location away from the cooking appliance and measuring the ambient temperature is provided,
The recognition unit is a recognition device that recognizes whether the food is cooked using the temperature measured by the first detection means.
According to paragraph 1,
The recognition unit evenly divides the cooking utensils into a set number in a plane,
A first sensing means is provided to measure the temperature of each equally divided area at a location spaced apart from the cooking utensil,
The first sensing means measures a plurality of temperatures for each area for a unit time,
The recognition unit extracts the highest effective temperature among a plurality of temperatures measured in a specific area during the unit time,
The recognition unit is a recognition device that recognizes whether the specific area is cooked using a plurality of effective temperatures extracted during a set time.
According to paragraph 1,
A first sensing means for measuring the temperature is provided on the upper side of the cooking appliance,
The recognition unit recognizes a cooking state in which cooking has started when the first value calculated using the measured value of the first sensing means is greater than or equal to the first temperature,
The recognition unit recognizes an uncooked state when the first value is less than the first temperature.
According to clause 5,
A recognition device wherein the first value is the same as the measured value.
According to clause 5,
The recognition unit calculates an average value of a plurality of effective temperatures obtained during a set time as the first value,
A recognition device wherein the plurality of effective temperatures are acquired for each unit of time smaller than the set time.
In clause 7,
The recognition unit excludes outliers from the plurality of effective temperatures obtained during the set time,
The recognition unit is a recognition device that calculates the average value based only on the effective temperature remaining after excluding the outlier values.
According to clause 5,
The recognition unit additionally obtains room temperature data,
The recognition unit sets the lowest temperature within a range that satisfies both the first condition and the second condition as the first temperature,
The first condition is to satisfy the range of 50 to 100 degrees,
The second condition is a recognition device that satisfies a temperature range that is higher than room temperature by the specified temperature.
According to paragraph 1,
A first sensing means for measuring the temperature is provided on the upper side of the cooking appliance,
If the first value calculated using the measured value of the first sensing means is greater than or equal to the second temperature, and the temperature change corresponding to the difference between the plurality of first values is greater than or equal to the set change value, the recognition unit returns to the cooking state in which cooking has started. aware,
The recognition unit recognizes the uncooked state when the first value is less than the second temperature or the temperature change is less than the set change value.
According to paragraph 1,
A first sensing means for measuring the temperature is provided on the upper side of the cooking appliance,
The recognition unit operates in a first mode or a second mode depending on the measured value of the first sensing means and the type of the cooking appliance,
In the first mode, the recognition unit recognizes the cooking state as the start of the cooking if the first value calculated using the measured value of the first sensing means is greater than or equal to the first temperature, and the first value is the first temperature. If it is less than that, it is recognized as uncooked,
In the second mode, the recognition unit recognizes a cooking state in which cooking has started if the first value is greater than or equal to the second temperature and the temperature change corresponding to the difference between the plurality of first values is greater than or equal to the set change value, and the first value is greater than or equal to the second temperature. If the value is less than the second temperature or the temperature change is less than the set change value, it is recognized as an uncooked state,
The recognition unit operates in the first mode when the cooking appliance is a gas range,
The recognition unit operates in the second mode when the cooking appliance is an electric range.
According to paragraph 1,
When a range hood is installed that absorbs contaminants generated during the cooking process and discharges them to the outside,
A control unit is provided to control the range hood having a plurality of air volume levels,
When the control unit recognizes that the cooking state has started, the control unit operates the range hood at a low speed,
A recognition device that disables the range hood when the control unit recognizes that it is in an uncooked state.
According to paragraph 1,
A recognition device comprising a second sensing means for measuring the surrounding pollution level, a prediction unit for predicting a cooking level of the cooking appliance using the pollution level, and a control unit for controlling a range hood according to the prediction result of the prediction unit.
According to clause 13,
A first sensing means for measuring the ambient temperature is provided,
If the cooking device is a gas range, the prediction unit additionally obtains the measured value of the first sensing means,
If the first value calculated using the measured value of the first sensing means is greater than or equal to the third temperature and the measured value of the second sensing means is equal to or greater than the first contamination level, the prediction unit determines the cooking level of the cooking device to be high-emission cooking. Predict with
If the first value is greater than or equal to the third temperature and the measured value of the second sensing means is less than the first contamination level, the prediction unit predicts the cooking level as medium-release cooking,
The prediction unit predicts the cooking level as low-emission cooking regardless of the measurement value of the second detection means when the first value is less than the third temperature.
According to clause 14,
When the high-emission cooking level is predicted, the control unit controls the air volume of the range hood disposed above the cooking appliance to the maximum level,
When the medium-emission cooking level is predicted, the control unit controls the air volume of the range hood to stop,
The control unit is a recognition device that controls the air volume of the range hood to a low level when the low-emission cooking level is predicted.
According to clause 13,
If the cooking appliance is an electric range, the prediction unit predicts the cooking level using the pollution level while excluding the temperature around the cooking appliance.
According to clause 16,
When the recognition unit recognizes that cooking in the electric range has started, the control unit controls the air volume of the range hood disposed above the electric range to a low level during a preset preparation time,
When the preparation time ends, the control unit controls the air volume of the range hood to stop,
The prediction unit predicts the cooking level of the cooking device as high-emission cooking when the air volume of the range hood is controlled to stop by the control unit and the measurement value of the second detection means is higher than the second pollution level,
The prediction unit predicts the cooking level as medium emission cooking if the measured value of the second detection unit is less than the second pollution level while the air volume of the range hood is controlled to stop by the control unit.
According to clause 17,
When the high-emission cooking level is predicted, the control unit controls the air volume of the range hood to the maximum level,
The control unit is a recognition device that controls the air volume of the range hood to stop when the medium emission cooking level is predicted.
In a recognition method performed by a recognition device,
A detection step of detecting surrounding information of the cooking device;
A recognition step of recognizing whether or not to cook using the cooking appliance using the surrounding information;
A prediction step of predicting a cooking level of the cooking appliance using the surrounding information;
A control step of controlling the air volume of the range hood disposed above the cooking appliance according to the recognition result of the recognition step or the prediction result of the prediction step,
A recognition method in which the sensing step independently acquires the surrounding information without involvement of the cooking appliance.
According to clause 19,
In the prediction step, if the cooking device is a gas range, the cooking level is predicted using the temperature measured by the first sensing means and the contamination level measured by the second sensing means,
In the prediction step, if the cooking appliance is an electric range, the recognition method predicts the cooking level using the contamination level measured by the second detection means among the first detection means and the second detection means.

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