JP2013048720A - Activity meter and health management system using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an activity meter allowing enhancement of measurement accuracy of an active amount by accurately distinguishing and measuring calorie consumption by walking/running and calorie consumption in exercise other than the walking/running, or daily work or the like, and to provide a health management system using the same.SOLUTION: This activity meter calculating activity calorie consumption data from a body motion signal Ts and personal data Kd includes: a walking/running calorie consumption calculation means 4 calculating walking/running calorie consumption data; a non-walking/non-running calorie consumption calculation means 5 calculating non-walking/non-running calorie consumption data; and an activity calorie consumption calculation means 6 calculating the activity calorie consumption data from the walking/running calorie consumption data and the non-walking/non-running calorie consumption data. The activity meter 1 includes a short-distance communication means 8 to transmit the activity calorie consumption data or the like to a personal computer 50 or the like.

Description

  The present invention relates to an activity meter that increases the accuracy of activity measurement by accurately discriminating and measuring calories consumed by walking / running and calories consumed during exercise and daily work other than walking / running, and the like The present invention relates to a health management system using the activity meter.

  Products for measuring total daily calorie consumption are on the market for diet and lifestyle-related disease prevention, and a technique for this purpose is disclosed in, for example, Patent Document 1 described later.

  The prior art disclosed in Patent Document 1 is to determine an action scene from the acceleration in the gravitational direction, the acceleration in the horizontal direction, and the norm of each acceleration of the acceleration detecting means attached to the person. .

  Next, the outline of the prior art disclosed in Patent Document 1 will be described with reference to FIG.

  FIG. 4 is a block diagram of the pedometer disclosed in Patent Document 1. The acceleration detection means 100 is mounted on a human body and detects acceleration in the gravity direction and the horizontal direction, and the person based on the acceleration obtained by the acceleration detection means 100 is shown. An action scene determining unit 200 for determining the action scene of the user, and an activity amount calculating unit 300 for calculating an activity amount from the acceleration obtained by the acceleration detecting unit 100 based on the determination result by the action scene determining unit 200. The determination unit 200 is based on the ratio between the acceleration in the gravity direction and the acceleration in the horizontal direction obtained by the acceleration detection unit 100 and the norm having each acceleration obtained by the acceleration detection unit 100 as a vector component. Is configured to determine.

JP 2008-246181 A

  In the prior art disclosed in Patent Document 1, even if the difference in the action scene of the wearer can be reflected to some extent in the amount of activity, for example, a jumping movement or a so-called running machine or the like is a movement centering on vertical movement. For example, since the acceleration in the horizontal direction is smaller than that in the direction of gravity, the determination of the activity scene is inaccurate, and it is difficult to accurately measure the amount of activity.

  The object of the present invention is to solve the above-mentioned problems of the prior art and accurately determine and measure calories consumed during walking / running and calories consumed during exercise and daily work other than walking / running. Therefore, it is to provide an activity meter that can improve the measurement accuracy of the activity amount and a health management system using the activity meter.

  In the following description, activity consumption calorie is defined as calorie consumption (unit: kcal) due to all body movements.

  If the structure of this invention for solving the said subject is explained in full detail, the invention which concerns on Claim 1 will be the body movement detection means, the personal data input means, the body movement signal which the said body movement detection means outputs, and the said Walking / running consumption calorie calculating means for calculating walking / running data and walking / running consumption calorie data from personal data output by the personal data input means, and non-walking / running consumption from the body motion signal and the personal data Non-walking / running consumption calorie calculating means for calculating calorie data, active consumption calorie calculating means for calculating activity consumption calorie data from the walking / running consumption calorie data and the non-walking / running consumption calorie data, and the personal data Basal metabolic rate calculation means for calculating basal metabolic rate data from the basal metabolic rate data, and total consumption calorie data for calculating total consumption calorie data from the basal metabolic rate data and the activity consumption calorie data Is the activity meter characterized by comprising a Lori calculating means.

  The walking / running consumption calorie calculating means calculates the walking / running consumption data and the walking / running consumption calorie data from the body motion signal and the personal data. The activity according to claim 1, further comprising: a calculation unit; and a non-walking / running calculation control unit that controls an operation of the non-walking / running consumption calorie calculation unit based on the walking / running data. It is a meter.

  The invention according to claim 3 is a non-walking / running consumption calorie calculating unit that calculates the non-walking / running consumption calorie data by inputting the body motion signal, and the non-walking / running consumption calorie calculating unit; The activity meter according to claim 1, further comprising a non-walking / running consumption calorie correcting unit that corrects the non-walking / running consumption calorie data based on the personal data. It is.

  Furthermore, the invention according to claim 4 comprises an activity meter according to any one of claims 1 to 3, comprising a short-range communication means based on technical standards defined in ISO / 1EC18092, a personal computer or a communication terminal, It is a health management system composed of

  According to the activity meter of the present invention, calories consumed by walking / running and movements other than walking / running, calories consumed in daily work, etc. are accurately discriminated and measured, and the total amount including basal metabolism is also measured. An activity meter capable of calculating calorie consumption and capable of health management by a personal computer or various data terminals is provided.

It is a block diagram which shows the structure of the active mass meter which concerns on this invention. It is an external view which shows the structure of the health management system comprised with the active mass meter and personal computer which concern on this invention. It is a circuit block diagram of the active mass meter which concerns on this invention. It is a block diagram which shows the structure of the conventional active mass meter.

  The activity meter according to the present invention calculates the calorie consumption of the walking / running motion from the signal of the gravity direction component in the body motion signal, and walks / runs from the horizontal component signal in the body motion signal. The calorie consumption of other exercises is calculated, the activity calorie calculated from these two calories, the basal metabolic rate is added based on personal data, and the total calorie consumption is calculated and displayed. is there.

Examples of the activity meter of the present invention will be described below with reference to FIGS.
[Block diagram configuration explanation]
The configuration of the activity meter 1 will be described with reference to FIG.

  Referring to FIG. 1, an activity meter 1 according to the present invention includes body motion detection means 2, personal data input means 3, walking / running consumption calorie calculating means 4, non-walking / running consumption calorie calculating means 5, and activity consumption. The calorie calculating means 6, the total consumed calorie calculating means 61, the basal metabolic rate calculating means 62, the display means 7, the short-range communication means 8, and the power source 9 are configured.

  Further, the walking / running consumption calorie calculating means 4 includes a walking / running consumption calorie calculating unit 41 and a non-walking / running consumption calorie calculating means 42, and the non-walking / running consumption calorie calculating means 5 is non-walking / running consumption calorie. The calculation unit 51 and non-walking / running consumption calorie correcting means 52 are configured.

  For the sake of explanation, FIG. 1 shows a reader / writer 90 of a personal computer, which will be described later, and an alternating magnetic field M, which is a communication medium, by broken lines.

  The body motion detection means 2 is a 3D acceleration sensor that detects acceleration in xyz3 directions orthogonal to each other, detects a user's gravity direction or horizontal motion, and outputs it as a body motion signal Ts. The body motion signal Ts is composed of component signals Tsx, Tsy, and Tsz for each xyz.

  The personal data input means 3 is for inputting personal data Kd. The personal data Kd is age Y, gender G, height H, and weight W, but it is possible to include calendar information such as date and time.

  The walking / running consumption calorie calculation means 4 analyzes, for example, the y component signal Tsy, which is a component in the gravity direction, in the body movement signal Ts of the user according to a predetermined procedure, and the walking / running consumption calorie data Sc and the number of steps are calculated. The walking / running consumption calorie calculating unit 41 for calculating walking / running data Hd composed of walking distance and mets (METs) and the non-walking / running consumption calorie calculating means 5 based on the walking / running data Hd The non-walking / running calculation control means 42 outputs a non-walking / running calculation control signal Hs for controlling the operation of the walking / running consumption calorie calculating means 5.

  The walking / running consumption calorie calculating unit 41 cumulatively adds the number of steps as the number of steps or the number of runs of the user when the change in the gravity direction of the body motion signal Ts exceeds, for example, a predetermined magnitude. At the same time, the walking speed is calculated by the walking / running distance and the time measuring means (not shown) provided in the walking / running consumption calorie calculating unit 41 using the stride converted from the height, and the walking / running consumption calorie calculating unit 41 is calculated. Is stored in a memory (not shown) included in the display and is output to the display means 7 and the short-range communication means 8.

  Further, the walking / running consumption calorie calculating unit 41 calculates the number of steps of the user from the personal data Kd and the body motion signal Ts and the time measuring means (not shown) built in the walking / running consumption calorie calculating unit 41. The calorie consumption related to running is output as walking / running consumption calorie data Sc.

  The non-walking / running calculation control means 42 inputs the walking / running data Hd calculated by the walking / running consumption calorie calculating unit 41, and when the walking / running data Hd satisfies the “predetermined condition”, The running calculation control signal Hs is input to the non-walking / running consumption calorie calculating means 5 to cause the non-walking / running consumption calorie calculating means 5 to perform a “predetermined operation”.

  In this embodiment, as the “predetermined condition”, for example, the y-component signal Tsy in the direction of gravity generated when the user continues walking / running with a step count of 100 to 160 for 10 minutes or more and walking / running is given. When the acceleration is equal to or greater than 0.1 gravitational acceleration, the non-walking / running consumption calorie calculating means 5 is input to the non-walking / running consumption calorie calculating means 5 as a “predetermined operation” to stop the non-walking / running consumption calorie calculating means 5. In other cases, the non-walking / running consumption calorie calculating means 5 is operated.

  As the “predetermined condition”, the user continues walking / running with a step count of 60 to 200 for one minute for 5 minutes or more, and the direction of gravity generated during walking, for example, the y component signal Tsy is 0.15 gravity acceleration. At this time, it is also possible to stop the non-walking / running consumption calorie calculating means 5 as a “predetermined operation”.

  The numerical values described as “predetermined conditions” and “predetermined operation” are not limited to these, and can be arbitrarily set according to the characteristics of the user and the purpose of use of the activity meter 1. Needless to say.

  The non-walking / running consumption calorie calculating means 5 inputs, for example, x and z component signals Tsx, Tsz, which are horizontal components in the user's body movement signal Ts, and analyzes them according to the procedure described later, and non-walking / running consumption Non-walking / running consumption calorie calculation unit 51 for calculating calorie data Hc, and non-walking / running consumption calorie correction for outputting non-walking / running data correction signal As to non-walking / running consumption calorie calculating means 51 based on personal data Kd. And means 52.

  The non-walking / running consumption calorie calculation unit 51 evaluates the amplitudes of, for example, the x component signal Tsx and the z component signal Tsz, which are horizontal components in the body motion signal Ts of the user, and one of them is predetermined. When the threshold value is exceeded, 1 effective count is set, and when both exceed a predetermined threshold value, 2 effective count is set, and 1 effective count is converted to 0.03 kcal and output as non-walking / running consumption calorie data Hc.

  More specifically, the non-walking / running consumption calorie calculating unit 51 determines that, for example, the x component signal Tsx has exceeded a predetermined threshold when evaluating the amplitudes of the horizontal component, for example, the x component signal Tsx and the z component signal Tsz. When evaluated, the “determined predetermined section” thereafter (0.4 seconds in the embodiment) prohibits the reevaluation of the x component signal Tsx.

  Even after the “determined predetermined section”, for example, if the x component signal Tsx does not pass the predetermined reference value (relative value 0 in the embodiment), the predetermined threshold value is exceeded. However, it is not counted as one effective count.

  Further, the non-walking / running consumption calorie calculating unit 51, when the user's walking does not meet the “predetermined condition”, for example, even if the number of steps per minute is 100 to 200, the walking continues for a predetermined number of steps or more. Alternatively, when the vehicle does not travel, the number of steps equal to or less than the predetermined number of steps is set as an effective count equivalent to, for example, the x component signal Tsx or the z component signal Ts that is the horizontal component of the body motion signal Ts. Add to.

  The non-walking / running consumption calorie correction unit 52 outputs a non-walking / running consumption correction signal As based on the personal data Kd, and inputs the non-walking / running consumption calorie data Hc to the non-walking / running consumption calorie calculation unit 51. Correct.

  In the embodiment, the non-walking / running data correction signal As is non-walking such as Hc = Hco × (α + β) / 2 according to the weight W (Kg) and the height H (cm) of the personal data Kd. A correction formula for correcting the running consumption calorie data Hc with the correction coefficients α and β.

  However, Hco is the non-walking / running consumption calorie data Hc before correction, α = W / Wo, βH / Ho, and Wo and Ho are both predetermined constants. In the embodiment, Wo = 60 ( kg), Ho = 170 (cm). Of course, the correction formula is not limited to this, and other formulas may be used.

  The activity consumption calorie calculating means 6 outputs the activity consumption calorie data Wt based on [Equation 1] from the walking / running consumption calorie data Sc and the non-walking / running consumption calorie data Hc.

[Formula 1]
Wt = Sc + Hc

  Basal metabolic rate calculating means 62 calculates basal metabolic rate data Kt based on the personal data Kd. More specifically, the basal metabolic rate standard value table is referred to in the basal metabolic rate standard value table from the age Y and gender G of the personal data Kd, the body surface area is referred to from the height H and weight W in the body surface area table, A method for obtaining a basal metabolic rate by multiplying a metabolic reference value and a body surface area is generally known, and this method can also be used in the present invention.

  The total calorie consumption calculation means 61 is based on [Equation 2] from the activity consumption calorie data Wt and the basal metabolic rate data Kt, and is a meal-induced heat production St (not shown) known as consumption calorie related to food excretion. Then, the total live consumption calorie data Sd is calculated based on [Equation 3] and input to the display means 7 and the short-range communication means 8.

[Formula 2]
St = 0.11 (Wt + St)

[Formula 3]
Sd = Wt + Kt + St

The display means 7 displays total consumption calorie data Sd, walking / running data Hd, and time information such as date.
The near field communication means 8 is a communication means based on the technical standard defined in ISO / 1EC18092, and the communication magnetic field W generated by the reader / writer 90 of the personal computer 50 described later is used as the near field communication means of the activity meter 1. 8 has a function of transmitting and receiving data by means of magnetic modulation means (not shown) built in the apparatus 8.

Since this method does not generate an active electromagnetic wave outside, it has little influence on the user and consumes less power.
The power source 9 is a button battery that drives the activity meter 1.

[Description of operation]
Next, operation | movement of the active mass meter 1 is demonstrated using FIG. 1 and FIG.
FIG. 2 is an external view showing a configuration of a health management system including the activity meter 1, the personal computer 50, and the reader / writer 90.

  In FIG. 1, the user inputs personal data Kd including age Y, gender G, height H, and weight W using the personal data input means 3.

  Although not shown, the user inputs personal data in advance, and then stores the activity meter 1 in, for example, a chest or waist pocket, and performs activities such as walking and jogging, and housework.

  When the user starts an activity, as shown in FIG. 1, the body motion detecting means 2 outputs a body motion signal Ts, and the walking / running consumption calorie calculating unit 41 of the walking / running consumption calorie calculating means 4 receives the body motion signal. The various walking data Hd such as the number of steps and the walking consumption calorie data are calculated from, for example, the y component signal Tsy and the personal data Kd in the gravity direction of Ts.

  Further, the non-walking / running consumption calorie calculating unit 51 of the non-walking / running consumption calorie calculating means 5 calculates the effective count number based on the horizontal x-component signal Tsx and the z-component signal Tsz of the body motion signal Ts and the non-walking / running consumption. The non-walking / running consumption calorie data Hc is calculated from the non-walking / running data correction signal As from the calorie correcting unit 52 and input to the activity consumption calorie calculating unit 6.

  When the user begins to walk and the various walking data Hd output by the walking / running consumption calorie calculating unit 41 satisfies the above-mentioned “predetermined condition”, the non-walking / running calculation control means of the walking / running consumption calorie calculating means 4 42 outputs a non-walking / running calculation stop signal Hss for stopping the operation of the non-walking / running consumption calorie calculating means 5 as the “predetermined movement”, for example. Otherwise, the non-walking / running calculation control means 42 does not output the walking / running calculation stop signal Hss.

  The activity consumption calorie calculation means 6 adds the walking / running consumption calorie data Sc and the non-walking / running consumption calorie data Hc to output the activity consumption calorie data Wt based on the user's activity, although not shown. It is stored in the memory and input to the total consumption calorie calculating means 61. The basal metabolism calculating means 62 calculates basal metabolism data Kt when the personal data Kd is set, and stores it in a memory in advance, although not shown.

  The total consumption calorie calculating means 61 calculates the diet-induced heat production data St from the input activity consumption calorie data Wt, the basal metabolism data Kt stored in the memory, and the activity consumption calorie data Wt and the basal metabolism data Kt. These are added together to calculate the total calorie consumption data Sd, which is stored in a memory (not shown) and input to the display means 7 and the short-range communication means 8.

  When the user's activity ends, the user brings the activity meter 1 closer to the reader / writer 90 of the personal computer 50 as shown in FIG. Then, the total consumption calorie data Sd and the walking / running data Hd are transmitted to the personal computer 50 via the reader / writer 90 by the short-range communication means 8 shown in FIG. 1 and sent by the application program provided in the personal computer 50. Data analysis and management are performed.

The circuit configuration of the activity meter 1 of the present invention will be described with reference to FIG.
In FIG. 3, the activity meter 1 includes a 3D acceleration sensor 21 which is a body motion detection unit 2, a microprocessor 10, a setting switch 31 as a personal data input unit 3, a memory 11, and a liquid crystal display as a display unit 7. Device 71 and short-range communication means 8.

  The 3D acceleration sensor 21 includes a plurality of piezoelectric elements, contact-type vibration sensors, or a MEMS (Micro Electro Mechanical Systems) type acceleration sensor, and detects a body motion signal Ts and inputs it to the microprocessor 10. The setting switch 31 is composed of a switch for setting personal data Kd.

  The microprocessor 10 controls the overall operation of the activity meter 1 and outputs total consumption calorie data Sd and walking / running data Hd from the body motion signal Ts and the personal data Kd.

  The microprocessor 10 includes the walking / running consumption calorie calculating means 4, the non-walking / running consumption calorie calculating means 5, the activity consumption calorie calculating means 6, the total consumed calorie calculating means 61, and the basal metabolism shown in FIG. The quantity calculation means 62 is provided in the form of a software module.

  The memory 11 includes a nonvolatile storage element such as an EEPROM or a flash memory, and stores the individual identification number of the user in addition to the calorie data such as total consumption calorie data Sd, walking / running data Hd, and date.

  In the embodiment, the short-range communication means 8 uses the alternating magnetic field M of about 13 megahertz as a medium, calorie consumption data Sd, calendar information such as walking / running data Hd and date, and the individual identification number of the user. To the personal computer 50.

  In addition to the short-range communication method of the embodiment, the short-range communication means 8 can also use, for example, a Bluetooth transceiver known as a terminal device of information equipment, a weak power type wireless communication device, or the like.

  As described above, according to the activity meter according to the present invention, the calorie consumption of the walking / running motion is calculated from the signal of the gravity direction component in the body motion signal, and the horizontal direction in the body motion signal is calculated. Calculate calorie consumption of activities other than walking and running from component signals, calculate activity calories from these two consumption calories, and calculate and display total calorie consumption by adding basal metabolism based on personal data Can do. Furthermore, since this activity meter employs a short-range communication method that does not generate electromagnetic waves, it is possible to provide a safe activity meter even for a user wearing a pacemaker.

1: Activity meter 2: Body motion detection means 21: 3D acceleration sensor 3: Personal data input means 31: Setting switch 4: Walking / running calorie calculating means 41: Walking / running calorie calculating unit 42: Non-walking / running Calculation control means 5: Non-walking / running consumption calorie calculation means 51: Non-walking / running consumption calorie calculation unit 52: Non-walking / running consumption calorie correction means 6: Activity consumption calorie calculation means 61: Total consumption calorie calculation means 62: Basic Metabolite calculation means 7: display means 71: liquid crystal display 8: short-range communication means 9: power supply 10: microprocessor 11: memory 50: personal computer 90: reader / writer 100: acceleration detection means 200: action scene determination means 300: Activity amount calculation means 400: display means 500: storage means Kd: personal data M: AC magnetic field Ts: body motion signal Sd: total calorie consumption Sc: Walking / running consumption calorie data Hc: Non-walking / running consumption calorie data Hd: Walking / running data Wt: Activity consumption calorie data As: Non-walking / running data correction signal Hs: Non-walking / running calculation control signal Hss: Non-walking / running computation stop signal Tsx: x component signal Tsy: y component signal Tsz: z component signal Kt: basal metabolic rate data St: meal-induced heat production data

    However, Hco is non-walking / running calorie data Hc before correction, α = W / Wo, β = H / Ho, and Wo and Ho are both predetermined constants. In the embodiment, Wo = 60 (kg), Ho = 170 (cm). Of course, the correction formula is not limited to this, and other formulas may be used.

Claims (4)

  Walking / running data and walking / running calorie data are calculated from body movement detecting means, personal data input means, body movement signals output from the body movement detecting means, and personal data output from the personal data input means. Walking / running consumption calorie calculating means, non-walking / running consumption calorie calculating means for calculating non-walking / running consumption calorie data from the body movement signal and the personal data, walking / running consumption calorie data, and non- Activity consumption calorie calculation means for calculating activity consumption calorie data from walking / running consumption calorie data, basal metabolism calculation means for calculating basal metabolism data from the personal data, basal metabolism data and the activity consumption calorie An activity meter comprising: total consumption calorie calculation means for calculating total consumption calorie data from the data.   The walking / running consumption calorie calculating means includes a walking / running consumption calorie calculating unit that calculates the walking / running data and the walking / running consumption calorie data from the body movement signal and the personal data; The activity meter according to claim 1, further comprising non-walking / running calculation control means for controlling the operation of the non-walking / running consumption calorie calculation means based on various data.   The non-walking / running consumption calorie calculating means inputs the body motion signal and calculates the non-walking / running consumption calorie data, and the non-walking / running consumption calorie calculation unit based on the personal data. The activity meter according to claim 1, further comprising non-walking / running consumption calorie correcting means for correcting consumption calorie data.   A health management system comprising the activity meter according to any one of claims 1 to 3 and a personal computer or a communication terminal provided with short-range communication means based on technical standards defined in ISO / 1EC18092.

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