JP2012053074A - Cooking skill determination system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cooking skill determination system capable of correctly determining skills of a user of a kitchen knife.SOLUTION: An acceleration sensor 11 detects an acceleration of a kitchen knife 1. When the change of acceleration of the kitchen knife 1 is irregular, it is determined that the user's kitchen knife skill is poor. When the change of acceleration of the kitchen knife 1 is regular and the change of pressure of the kitchen knife 1 applied to a chopping board 2 is irregular, it is determined that the user's kitchen knife skill is regular. When the change of acceleration of the kitchen knife 1 is regular and the change of pressure of the kitchen knife 1 applied to a chopping board 2 is regular, it is determined that the user's kitchen knife skill is excellent. The determination result is output from a speaker as voice or displayed as character information.

Description

  The present invention relates to a cooking skill determination system.

  2. Description of the Related Art Conventionally, a game is known in which a game device is moved like a knife to simulate a cabbage shredding (see the following patent document).

JP 2003-225467 A

  In the above game device, when the game device is moved like a kitchen knife, the image of the cabbage to be shredded is displayed on the display device, so that the player can feel as if the cabbage has actually been shredded. However, since the cabbage is not actually shredded, it is difficult for the game device to accurately determine the skill of the player. However, it is not always possible to accurately determine the skill of the user of the kitchen knife if the cabbage is actually shredded.

  This invention is made in view of such a situation, The subject is providing the cooking skill determination system which can determine the skill of the user of a kitchen knife correctly.

  In order to solve the above-mentioned problem, the invention described in claim 1 is to detect a shock when a knife hits the cutting board, a knife device having a knife and acceleration detecting means for detecting acceleration of the knife, and a cutting board. A cutting board device having an impact detection means for determining, a determination means for determining the skill of the user of the knife based on an output result of the acceleration detection means and an output result of the impact detection means, and a determination result of the determination means And a determination result output means for outputting.

  According to a second aspect of the present invention, in the cooking skill determination system according to the first aspect, when the determination means outputs a detection result that the change in acceleration of the knife is not regular from the acceleration detection means, the knife It is characterized by determining that the user's skill is low.

  According to a third aspect of the present invention, in the cooking skill determination system according to the first aspect, the determination means outputs a detection result that the change in acceleration of the knife is regular from the acceleration detection means, and the shock detection When the output value of the means and the time interval of impact of the knife applied to the cutting board are constant, it is determined that the skill of the user of the knife is high.

  According to a fourth aspect of the present invention, in the cooking skill determination system according to the first aspect, the determination means outputs a detection result that the change in acceleration of the knife is regular from the acceleration detection means, and the impact detection When the output value of the means and the time interval of the impact of the knife applied to the cutting board are not constant, the skill of the user of the knife is determined to be normal.

  According to a fifth aspect of the present invention, in the cooking skill determination system according to any one of the first to fourth aspects, an image display device for displaying a predetermined image and the user located in front of the cutting board are imaged. When there is no image of the user in the captured image acquired by the imaging device and the imaging device, the display of the predetermined video by the video display device is stopped, and after the predetermined time elapses from the stop, And video control means for restarting the display.

  According to a sixth aspect of the present invention, in the cooking skill determination system according to the fifth aspect, the video control means stops the display of the predetermined video by the video display device when the movement of the knife is slow, and the stop The display of the predetermined video is resumed after a predetermined time has elapsed.

  According to a seventh aspect of the present invention, in the cooking skill determination system according to the fifth aspect, the video control means is configured to display the video display device when the movement of the knife is fast and the output value of the impact detection means is a predetermined value or less. The display of the predetermined video is stopped, and the display of the predetermined video is restarted after a predetermined time has elapsed since the stop.

  The invention according to claim 8 is the cooking skill determination system according to claim 5, wherein the image control means is configured to perform the predetermined operation when the movement of the knife is fast and the output value of the impact detection means exceeds a predetermined value. The video display is continued.

  The invention according to claim 9 is the cooking skill determination system according to any one of claims 1 to 8, wherein the knife device acquires two three-dimensional images by photographing the knife from two different positions behind it. Image pickup means.

  A tenth aspect of the present invention is the cooking skill determination system according to any one of the first to ninth aspects, wherein the determination result output means is a speaker.

  The invention described in claim 11 is the cooking skill determination system according to any one of claims 1 to 9, wherein the determination result output means is a display device.

  A twelfth aspect of the present invention is the cooking skill determination system according to any one of the first to eleventh aspects, wherein the impact detection means is a pressure sensor.

  A thirteenth aspect of the present invention is the cooking skill determination system according to any one of the first to twelfth aspects, wherein the handle portion of the knife and the cutting board are waterproofed.

  According to this invention, the skill of the user of the kitchen knife can be accurately determined.

FIG. 1 is a block diagram of a cooking skill determination system according to the first embodiment of the present invention. FIG. 2 is a side view of the kitchen knife. FIG. 3 is a diagram for explaining the movement of the kitchen knife. FIG. 4 is a graph for explaining a change in acceleration acting on the knife. FIG. 5 is a flowchart for explaining the operation of the cooking skill determination system. FIG. 6 is a block diagram of a cooking skill determination system according to the second embodiment of the present invention. FIG. 7 is a flowchart for explaining the operation of the cooking skill determination system shown in FIG. FIG. 8 is a perspective view for explaining a modification of the knife device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram of a cooking skill determination system according to a first embodiment of the present invention, and FIG. 2 is a side view of a kitchen knife.

  The cooking skill determination system 1000 includes a knife device 100 and a cutting board device 200.

  The knife device 100 includes a knife 1 (see FIG. 2) having a blade portion 1A and a handle portion 1B, an acceleration sensor (acceleration detecting means) 11 for detecting the acceleration of the knife 1, and acceleration data detected by the acceleration sensor 11. And a transmission unit 12 for transmitting (see FIG. 4).

  The cutting board device 200 detects two cutting boards, a receiving section 22 that receives acceleration data sent from the transmitting section 12, and an impact (a magnitude of pressure applied to the cutting board 2) when the knife 1 hits the cutting board 2. The CPU (determination means) 23 for determining the skill of the user of the knife 1 based on the shock sensor (impact detection means) 21, the output result of the acceleration sensor 11 and the output result of the shock sensor 21, and the determination result of the CPU 23 And a reporting unit (determination result output means) 24 for outputting.

  The acceleration sensor 11 is built in the handle 1B. The acceleration sensor 11 is, for example, a general semiconductor type MEMS (Micro Electro Mechanical Systems). The handle 1B is waterproofed. The cutting board 2 is also waterproofed. The acceleration data is transmitted to the receiving unit 22 via the USB cable 30.

  Instead of sending the acceleration data from the transmission unit 12 via the USB cable 30 to the reception unit 22 in a wired manner, the acceleration data is sent from the transmission unit 12 to the reception unit 22 wirelessly by a communication method such as infrared communication or Bluetooth communication. You may do it.

  The shock sensor 21 is a pressure sensor. The pressure sensor is a diaphragm gauge commonly used in MEMS, for example. The shock sensor 21 is provided at the four corners of the rectangular cutting board 2, for example. A so-called sheet sensor can also be used as the pressure sensor. Note that an acceleration sensor may be used as the shock sensor 21.

  The CPU 23 is configured using a microcomputer or the like.

  The CPU 23 determines whether or not the acceleration change is regular based on the acceleration data from the receiving unit 22. The CPU 23 calculates, for example, the time from the peak to the peak of the acceleration waveform shown in FIG. 4, compares the time interval with a predetermined threshold value, and changes in acceleration are regular based on variations with respect to the threshold value. Determine whether or not.

  The CPU 23 determines whether the pressure change is regular based on the pressure data from the shock sensor 21. For example, the CPU 23 calculates the time from peak to peak of a pressure waveform (not shown), and determines whether the pressure change is regular based on whether the time interval is constant.

  The CPU 23 determines whether or not an ingredient (not shown) is placed on the cutting board 2 based on the output signals of the shock sensors 21 at the four corners of the cutting board 2, and the area where the ingredient touches the cutting board 2. Or calculate.

  The notification unit 24 is, for example, a speaker that outputs the determination result as sound, or a monitor (for example, a display device using an LCD or the like) that displays the determination result as characters. A plurality of LEDs may be used as the notification unit 24 instead of the monitor.

  In the above cooking skill determination system, the scale for measuring the level of skill in cooking (skills) was cut into pieces. It can be judged by the fineness of the ingredients that have been cut into upper and lower parts and the speed at which the ingredients are cut. The fineness of the cut material is determined by measuring the time interval of the pressure applied to the cutting board 2, and the speed at which the material is cut is determined by the magnitude of the acceleration of the knife 1.

  Next, the cooking skill determination system 1000 will be described with reference to FIGS.

  3 is a diagram for explaining the movement of the kitchen knife, FIG. 4 is a graph for explaining the change in acceleration acting on the kitchen knife, and FIG. 5 is a flowchart flow 0 for explaining the operation of the cooking skill determination system. In FIG. 4, the vertical axis represents acceleration, and the horizontal axis represents time. Moreover, in FIG. 5, S1-S7 shows each process step. In FIG. 5, the determination result is shown surrounded by a chain line.

  The movement of the knife 1 was taken as the Z-axis direction, the longitudinal direction of the cutting board 2 was taken as the Y-axis direction, and the short direction of the cutting board 2 was taken as the X-axis direction (see FIG. 3). The acceleration sensor 11 detects the acceleration of the knife 1 in the Z-axis direction.

  First, the acceleration of the knife 1 is detected using the acceleration sensor 11 (S1).

  Next, it is determined whether or not the acceleration change is regular (S2).

  When the acceleration change is not regular (NO), it is determined that the skill of the user of the knife 1 is low (poor) (S3).

  When the acceleration change is regular (see FIG. 4) (YES), the shock (pressure magnitude) when the knife 1 hits the cutting board 2 is detected using the shock sensor 21 (S4).

  Next, it is determined whether or not the pressure change is regular (S5).

  When the pressure change is not regular (NO), it is determined that the skill of the user of the knife 1 is at a standard level (normal) (S6).

  When the pressure change is regular (YES), it is determined that the skill of the user of the knife 1 is high (skilled) (S7).

  The determination result is output as a voice from a speaker or displayed on a monitor as character information.

  According to this embodiment, the data necessary for determining the skill of the user of the knife 1 is collected by actually cutting the ingredients, the skill is determined based on the data, and the determination result is output. Therefore, the skill of the user of the knife 1 can be accurately determined.

  In the above embodiment, the scale for measuring the skill of cooking is cut into ingredients, but the scale may be chopped into ingredients, for example.

  FIG. 6 is a block diagram of a cooking skill determination system according to the second embodiment of the present invention, and the same reference numerals are given to portions common to the first embodiment, and description thereof is omitted.

  This embodiment is different from the first embodiment in that it includes an image display device 5 that displays an image and an imaging device 4 that images a user located in front of the cutting board 3.

  The cooking skill determination system 2000 includes a knife device 100, a cutting board device 300, an imaging device 4, and a video display device 5.

  The cutting board device 300 includes three cutting boards, a shock sensor (impact detection means) 31 that detects an impact (pressure magnitude) when the knife 1 hits the cutting board 3, and pressure data detected by the shock sensor 31. And a transmission unit 32 for transmission.

  The imaging device 4 includes a transmission unit 41, and imaging data is transmitted from the transmission unit 41. The imaging device 4 is, for example, a so-called USB camera (a digital camera used by connecting to a USB port of a personal computer). A digital video camera or the like may be used as long as it can perform real-time shooting. For example, when the user of the knife 1 stands at the cooking position, the imaging device 4 is disposed at a predetermined position where the whole body of the user can be photographed.

  The video display device 5 includes a receiving unit 51 that receives acceleration data sent from the sending unit 12, pressure data sent from the sending unit 32, and imaging data sent from the sending unit 41, acceleration data, pressure data, and imaging data. A CPU (determination unit) 52 that determines the skill of the user of the knife 1 based on the information and a notification unit (determination result output unit) 53 that outputs a determination result of the CPU 52 are included. The video display device 5 is, for example, a liquid crystal display or a plasma display. For example, a cooking recipe is displayed on the video display device 5.

  The CPU 52 stops the display of the cooking recipe (predetermined video) by the video display device 5 when there is no user image in the captured image acquired by the imaging device 4, and the video of the cooking recipe after a predetermined time has elapsed since the stop. Resume display of.

  Further, when the movement of the knife 1 detected by the acceleration sensor 11 is slower than the change rate of the image, the CPU 52 stops the display of the image of the cooking recipe by the image display device 5, and after a predetermined time has elapsed since the stop. Resume display of cooking recipe video.

  Further, when the movement of the knife 1 detected by the acceleration sensor 11 is faster than the pace of image change and the output value of the shock sensor 31 is less than or equal to a predetermined value, the CPU 52 displays the cooking recipe image on the image display device 5. And the display of the cooking recipe video is resumed after a predetermined time has elapsed since the stop.

  Further, the CPU 52 continues to display the image of the cooking recipe when the movement of the knife 1 detected by the acceleration sensor 11 is fast and the output value of the shock sensor 31 exceeds a predetermined value.

  Next, the cooking skill determination system 2000 will be described with reference to FIG.

  FIG. 7 is a flowchart for explaining the operation of the cooking skill determination system shown in FIG. In FIG. 7, S11 to S26 indicate each processing step.

  First, photographing of the position where the user of the knife 1 stands is performed with the imaging device 4 (S11).

  Next, it is determined whether or not there is an image of the user in the captured image acquired by the imaging device 4 (whether or not the user is shown) (S12).

  When there is no user image in the captured image (NO), the display of the cooking recipe video by the video display device 5 is stopped so that the display of the cooking recipe video does not proceed (S13).

  After a predetermined time has elapsed from the stop of the display of the cooking recipe image (S14), the display of the cooking recipe image is canceled and the display of the cooking recipe image is resumed (S15).

  When there is a user image in the captured image (YES), the movement of the knife 1 is detected (S16).

  It is determined whether or not the movement of the knife 1 detected by the acceleration sensor 11 is slow (the pace of movement is slow) (S17).

  When the movement of the knife 1 detected by the acceleration sensor 11 is slow (YES), the display of the cooking recipe video by the video display device 5 is stopped so that the display of the cooking recipe video does not proceed (S18).

  After a predetermined time has elapsed since the display of the cooking recipe image is stopped (S19), the display of the cooking recipe image is canceled and the display of the cooking recipe image is resumed (S20).

  When the movement of the knife 1 detected by the acceleration sensor 11 is not slow (NO), the pressure applied to the cutting board 3 is detected (S21).

  It is determined whether or not the pressure (output value) applied to the cutting board 3 is greater than or equal to a predetermined value (S22).

  When the pressure applied to the cutting board 3 is equal to or higher than a predetermined value (YES), the display of the cooking recipe video is continued (S23).

  When the pressure applied to the cutting board 3 is not equal to or higher than the predetermined value (NO), the display of the cooking recipe video by the video display device 5 is stopped so that the display of the cooking recipe video does not proceed (S24).

  After a predetermined time has elapsed from the stop of the display of the cooking recipe image (S25), the display of the cooking recipe image is released and the display of the cooking recipe image is resumed (S26).

  In addition, this embodiment is also provided with the structure of 1st Embodiment, and can also determine the user's skill of the knife 1 correctly.

  According to this embodiment, the same effects as those of the first embodiment can be obtained, and the cooking recipe can be displayed on the video display device 5 according to the skill of the user without taking his hands off from the knife 1 and the ingredients. Therefore, it is possible to solve problems when cooking while watching a cookbook or a TV cooking program which will be described later.

  The troubles when cooking while looking at the cookbook are as follows. For example, it is troublesome to page the book, or the book becomes dirty if the book is touched with a hand that cuts ingredients such as meat and fish.

  In addition, problems when cooking while watching a TV cooking program are as follows. For example, because the cooking pace of a cooking program is different from the cooking pace of the user, it is troublesome to miss the cooking process in the program or to find the missed part when cooking while watching the recorded program. Or

  FIG. 8 is a perspective view for explaining a modification of the knife device.

  The knife device 400 is a knife in that two 3D image acquisition imaging devices (3D image acquisition imaging means) 45 and 46 for imaging the blade portion 1A from different positions behind the blade portion 1A are provided on the handle 1B. Different from the device 100.

  The three-dimensional image acquisition imaging devices 45 and 46 include a pair of lenses 45a and 46a and an imaging element (not shown) such as a CCD corresponding to the pair of lenses 45a and 46a. The pair of lenses 45a and 46a are arranged so that the blade portion 1A is sandwiched between the end surfaces of the handle portion 1B. The pair of imaging elements are respectively disposed on the optical axes of the pair of lenses 45a and 46a. Three-dimensional photography can be performed by photographing the material through the pair of lenses 45a and 46a.

  By using the three-dimensional image acquisition imaging devices 45 and 46, the user can record a three-dimensional image capable of grasping a three-dimensional space as if he / she looked directly at the ingredients. Therefore, the user can experience a sense of reality as if he / she is actually cutting the material when he / she sees an image recorded later.

  1: knife, 2, 3: cutting board, 4, 45, 46: imaging device, 5: video display device, 11: acceleration sensor (acceleration detection means), 21, 31: shock sensor (impact detection means), 23, 52 : CPU (determination means, video control means), 24, 53: Notification section (determination result output means), 100, 400: Knife device, 200, 300: Cutting board device, 1000, 2000: Cooking skill determination system.

Claims (13)

A knife device having a knife and acceleration detecting means for detecting the acceleration of the knife;
A cutting board device having a cutting board and an impact detection means for detecting an impact when the knife hits the cutting board;
Determination means for determining the skill of the user of the knife based on the output result of the acceleration detection means and the output result of the impact detection means;
A cooking skill determination system comprising: determination result output means for outputting a determination result of the determination means.   The determination means determines that the skill of the user of the knife is low when a detection result indicating that the change in acceleration of the knife is not regular is output from the acceleration detection means. Cooking skill judgment system.   The determination means outputs a detection result that the change in acceleration of the knife is regular from the acceleration detection means, and the output value of the impact detection means and the time interval of the impact of the knife applied to the cutting board are constant. When it is, it determines with the skill of the user of the said kitchen knife being high, The cooking skill determination system of Claim 1 characterized by the above-mentioned.   The determination means outputs a detection result that the change in acceleration of the knife is regular from the acceleration detection means, and the output value of the impact detection means and the time interval of the impact of the knife applied to the cutting board are constant. The cooking skill determination system according to claim 1, wherein when it is not, the skill of the user of the knife is determined to be normal. A video display device for displaying a predetermined video;
An imaging device for imaging the user located in front of the cutting board;
When there is no image of the user in the captured image acquired by the imaging device, the display of the predetermined video by the video display device is stopped, and the display of the predetermined video is restarted after a predetermined time has elapsed since the stop. The cooking skill determination system according to claim 1, further comprising: a video control unit. The video control means stops the display of the predetermined video by the video display device when the movement of the knife is slow, and restarts the display of the predetermined video after a predetermined time has elapsed since the stop. The cooking skill determination system according to claim 5. The video control means stops the display of the predetermined video by the video display device when the knife moves fast and the output value of the impact detection means is equal to or less than a predetermined value, and after the predetermined time has elapsed since the stop. 6. The cooking skill determination system according to claim 5, wherein display of the predetermined video is resumed. 6. The cooking skill according to claim 5, wherein the video control means continues to display the predetermined video when the knife moves fast and the output value of the impact detection means exceeds a predetermined value. Judgment system. The cooking skill determination system according to any one of claims 1 to 8, wherein the knife device has two three-dimensional image acquisition imaging means for photographing the knife from two different positions behind the knife. . The said determination result output means is a speaker. The cooking skill determination system of any one of Claims 1-9 characterized by the above-mentioned. The said determination result output means is a display apparatus. The cooking skill determination system of any one of Claims 1-9 characterized by the above-mentioned. The cooking skill determination system according to any one of claims 1 to 11, wherein the impact detection means is a pressure sensor.   The cooking skill determination system according to any one of claims 1 to 12, wherein a handle portion of the knife and the cutting board are waterproofed.

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