JP6329853B2 - Biological information measuring device - Google Patents

Description

  The present invention relates to a biological information measuring device that measures biological information such as body weight and body composition, and more particularly to a biological information measuring device in which operation keys are arranged on the front surface of a main body.

Conventionally, body weight is measured for the purpose of self-health and physical condition management.
In recent years, in addition to measuring body weight, biological information measuring devices that measure bioimpedance, calculate body fat percentage from this measured value and basic information such as height and sex registered in advance, and display it together with body weight are widely used. (Patent Document 1). In addition to body weight and body fat percentage, there is also a biological information measuring device that calculates and displays various body compositions such as basal metabolism, visceral fat percentage, body age, etc. from the measured body weight and bioimpedance and basic information registered. Existing.

In the biological information measuring device, operation keys are often provided on the upper surface of the main body (the surface on which the measurer rides during measurement).
By operating these operation keys, the basic information of the measurer is input and various modes are set. The setting mode includes, for example, a weight mode for measuring only body weight, a guest mode for measurement by a person other than a registered user, an automatic recognition mode (default setting) for automatically recognizing the measurement person, and the measurement person appropriately selects the mode. Perform measurement after selecting.

Conventionally, when the weight of a luggage or the like is measured using such a biological information measuring device, the weight is measured using a “weight mode” which is a function of the biological information measuring device.
In general, the elements for measuring body weight are arranged at four locations at four corners with respect to the measurement surface, or at two locations on the left and right or top and bottom, so that the load is placed in the center of the measurement surface as much as possible. However, it is preferable for performing accurate measurement.
However, in the biological information measuring apparatus in which the operation keys are arranged on the upper surface of the main body, the operation keys sometimes react when a load is placed for measurement.
For this reason, there is no choice but to place the luggage so as not to touch the operation key, or to measure the biological information measuring device malfunctioning when the key reacts to the luggage.

JP 2002-238904 A

  An object of this invention is to provide the biological information measuring device which can measure the weights, such as a load, reliably.

(1) In the first aspect of the invention, the weight measuring means for measuring the weight of the measurer, the display means for displaying the result of the measurement, and the measurement surface on which the measurer rides during the measurement are arranged. Further, an operation unit for performing an input operation, a user registration unit for performing user registration of a measurer by an input operation of the operation unit, a mode selection unit for selecting a mode to be measured by an input operation of the operation unit, and the mode Provided is a biological information measuring device comprising: an input operation invalidating unit that invalidates a subsequent input operation of the operation unit when a luggage mode is selected by a selection unit.
(2) In the invention described in claim 2, the bioimpedance measurement means for measuring the bioimpedance of the measurer, the measured body weight, the measured bioimpedance, and the information of the measurer registered by the user The body composition calculating means for calculating body composition for calculating the body composition of the measurer, and the display means displays the measured body weight and the calculated body composition. The biological information measuring device described in 1. is provided.
(3) In the invention according to claim 3, the input operation invalidating means validates the invalidated input operation when the luggage placed on the measurement surface is lowered in the luggage mode. A biological information measuring device according to claim 1 or claim 2 is provided.
(4) In the invention according to claim 4, the input operation invalidating means is configured to allow the input operation invalidating means to be used when the load placed on the measurement surface is lowered before the measurement by the weight measuring means is completed in the luggage mode. The biological information measuring device according to claim 1 or 2, wherein the invalidated input operation is validated.
(5) In the invention according to claim 5, the input operation invalidating means is configured to invalidate the input operation after a predetermined time has elapsed since the measurement of the load placed on the measurement surface was completed in the load mode. The biological information measuring device according to claim 1 or 2, wherein the biological information measuring device according to claim 1 or 2 is provided.
(6) In the invention described in claim 6, the invalidated input operation is valid when the power is turned off and then the power is turned on. The biological information measuring device according to any one of claims 1 to 5 is provided.

  According to the present invention, since the input operation of the operation unit arranged on the measurement surface is invalidated in the luggage mode, the weight of the luggage or the like can be reliably measured.

It is an external appearance block diagram of a biological information measuring device. It is a functional block diagram of a biological information measuring device. It is explanatory drawing which represented notionally the content of the storage data of a user information storage part and measurement result historical data. It is explanatory drawing showing the detail of the display screen of a display part. It is a flowchart showing the whole measurement processing operation. It is a flowchart showing the detail about the 1st example of package mode measurement. It is a flowchart showing the detail about the 2nd example of package mode measurement. It is a flowchart showing the detail about the 3rd example of package mode measurement.

Hereinafter, a preferred embodiment of the biological information measuring device of the present invention will be described in detail with reference to FIGS.
(1) Outline of Embodiment In the present embodiment, a biological information measuring device in which various operation keys are arranged on a surface (measurement surface) on which a measurer rides at the time of measurement is used. It is possible to perform measurement.
In the biological information measuring apparatus of the present embodiment, a luggage mode (including a conventional mode for measuring only the body weight) for measuring the weight (mass) of the luggage is provided. When the luggage mode is selected by operating the operation key, the operation key is invalidated for a predetermined period or until a predetermined operation is performed.

After invalidating the operation key by selecting the package mode, the processing is performed by any one or a plurality of combinations (excluding the combination of a and c) as follows.
(A) When the measurement is completed and the package is unloaded from the biological information measuring device, the operation key is validated (the operation key is returned).
(B) When the package is unloaded before the end of the measurement, the operation key is validated to exit from the “package mode” (return to the default mode).
(C) After the measurement is completed and the baggage is taken down from the biological information measuring device, the operation key is validated after a certain period of time, and the baggage mode is exited.
(D) When the power is turned off, the user exits the “package mode” and activates the operation key.

As a result, when measuring the weight of a load using the biological information measuring device, the measurement is re-performed due to the load coming into contact with the operation key, or the load is placed at a position avoiding the operation key. There is no need for troubles. That is, when the baggage mode is selected, the weight of the baggage can be measured without considering the position and state of the baggage, so that convenience in measuring the baggage is improved.
Further, the biological information measuring device can be used in the same manner as a measuring device that does not have an operation key or does not have an operation key on the measurement surface, and the biological information measuring device can also serve as a weighing instrument.

In the present embodiment, the measured body weight, bioelectrical impedance, and registered basic information (height, sex, date of birth) are used, BMI (Body Mass Index), basal metabolism, body fat percentage, internal fat level. Although it is intended for a biological information measuring device that calculates various body compositions such as (rate) and body age and displays them together with body weight, it has at least a function of measuring body weight, and operation keys are provided on the measurement surface. Any device can be applied.
For example, it is possible to target a body fat scale that calculates only the body fat percentage from the body weight, bioelectrical impedance, and basic information and displays the body fat percentage together with the body weight.
Moreover, the biological information measuring apparatus which measures only a body weight and calculates BMI or / and basal metabolism from basic information may be sufficient.
Furthermore, a weight scale that automatically recognizes a measurer by measuring only the body weight and comparing it with a stored measurement history (body weight) may be used.

(2) Details of Embodiment FIG. 1 shows an external configuration of a biological information measuring apparatus to which the present embodiment is applied. (A) is a plan view, (b) is a front view, and (c) is a rear view. It is.
As shown in FIG. 1A, the biological information measuring device 1 of the present embodiment includes a device main body 10, and the measurement surface (upper surface) of the device main body 10 is matched with the arrangement of the display unit 11 and the foot. In addition, measurement electrodes 12 are arranged at four locations on the left, right, and top. In addition, on the measurement surface, an operation unit 13 is disposed at substantially the center position of the four measurement electrodes 12. However, the operation part 13 can also be arrange | positioned in another place if it is on a measurement surface.

On the back side of the apparatus main body 10, weight sensors 15Lf, 15Lb, 15Rf, and 15Rb are arranged at four corners as shown by dotted lines in FIG. 1 (a) and as shown in FIGS. 1 (b) and 1 (c). Further, push switches 16L and 16R are arranged at both front corners of the apparatus main body 10.
As shown in FIG. 1B, a power switch 14 is disposed on the rear side surface of the apparatus main body 10.

The apparatus main body 10 is a housing provided with a surface (measurement surface) on which a measurement subject rides.
An electronic circuit, a power supply, a power supply holding unit, and the like (not shown) are provided inside the apparatus main body 10.

The display unit 11 is composed of a liquid crystal display.
The display unit 11 of the present embodiment employs a segment system, but a dot matrix liquid crystal display can also be employed.
The display unit 11 displays input information input at the time of user registration, measurement results such as weight and body fat percentage, and the like.
Each display item and display area of the display unit 11 will be described later.

The measurement electrodes 12Lf, 12Lb, 12Rf, and 12Rb are for measuring the bioimpedance of the measurement subject on the apparatus body 10, and a total of four electrodes are arranged on the front, rear, left, and right.
The measurement electrode 12Lf, 12Lb, 12Rf, 12Rb measures the resistance value between the electrodes, thereby calculating the bioimpedance of the measurer.
Actually, a weak constant current of high frequency is applied from one electrode, a voltage drop is measured at the other one electrode, and a resistance value between both electrodes is measured from this voltage drop.

The measurement electrodes 12Lf, 12Lb, 12Rf, and 12Rb are distinguished and displayed by L and R with respect to the left and right, and subscripts f and b with respect to the front and rear depending on the arrangement location.
In measurement, the measurer places the toe side and the heel side of the left and right feet on the measurement electrodes 12Lf, 12Lb, 12Rf, and 12Rb with the arch interposed therebetween.
In the following description, as a symbol for designating the measurement electrode, 12L or 12R is designated when specifying either left or right regardless of front and rear, and either front or rear is specified regardless of left or right. In this case, they are expressed as 12f and 12b, and when any one or all of the measurement electrodes are specified regardless of whether they are front, rear, left or right, they are expressed as 12.
The notation of this subscript is the same for the weight sensors 15Lf, 15Lb, 15Rf, 15Rb, and the push switches 16L, R.

The operation unit 13 includes an upper key 13a, a lower key 13b, a clear key 13c, and a setting key 13d as operation keys.
The up and down keys 13a and 13b are keys for making a transition to another screen on a display screen having no setting items and changing the contents (numerical values and items) of the setting items on the display screen having the setting items.
The clear key 13c is a key for clearing each item and value being displayed and returning to the previous screen.
The setting key 13d is a key for confirming an item set on a display screen with a setting item and shifting to the next setting item and the next display screen.
Various selections such as input of basic information (height, sex, date of birth) for each user (measurement person), selection of a user, and selection of various modes are performed by operating each key of the operation unit 13.

  Modes that can be selected by operating the keys of the operation unit 13 include a luggage mode in the present embodiment, a guest mode that is measured by a person other than a registered user, a weight mode that measures and displays only the weight, and a measurer. In this embodiment, the automatic recognition mode is set as the default mode.

The auto-recognition mode, which is the default mode, measures body weight and bioelectrical impedance, automatically recognizes the measurer by comparing both measured values and measurement history, displays various biometric information along with the weight, and recognizes the current measured value Save as a history of the measured person.
When the default mode is changed to another mode by the operation of the operation unit 13, the mode information indicating the changed mode is stored in the nonvolatile memory 40, and the conditions corresponding to each mode such as elapse of a predetermined time are satisfied. To return to the default mode.

  In the present embodiment, when the luggage mode is selected by operating the operation unit 13, various key operations of the operation unit 13 are invalidated, and then the key is pressed when a predetermined condition such as the loaded luggage is lowered is satisfied. Operation returns.

The biological information measuring apparatus 1 is configured such that, after the measurement is completed, when a non-operation state of the operation unit 13 has elapsed for a predetermined time (for example, 1 minute), the biological information measurement device 1 shifts to a power saving state and the liquid crystal display of the display unit 11 is turned off. ing. This non-operation state is detected by a timer, and this timer is reset (started) every time the operation unit 13 is operated.
When any key of the operation unit 13 is pressed in the power saving state, the power saving state is canceled and calibration is started.

The luggage mode of the present embodiment is selected by operating the operation unit 13, and subsequent operations are invalidated.
Unlike the case where the measurer himself gets on the measurement surface in the other mode, the baggage mode may require special work such as preparing or loading the baggage.
For this reason, if the timer for detecting the non-operation state is reset by the operation of the operation unit 13 for selecting the luggage mode, there is a possibility of shifting to the power saving state before loading the luggage.
Therefore, in the present embodiment, when the baggage mode is entered, in addition to the operation of the operation unit 13, the measurement of the no-operation state detection timer is invalidated.
Once the operation mode is shifted to the luggage mode, when the operation key is subsequently activated (the operation key is restored), the no-operation state detection timer is also activated and reset.

However, in the baggage mode, the timer measurement is not invalidated, but instead of the operation of the operation unit 13, it is determined that there is an operation when the baggage is loaded or lowered, and a timer for detecting the no-operation state May be reset.
In this case, the timer is reset (started) by the operation of the operation unit 13 for shifting to the baggage mode. However, in consideration of the above-described special situation (such as baggage preparation) in the baggage mode, a predetermined time measured by the timer is set. Set longer than the default time (for example, 2 minutes, 3 minutes, etc.).

The power switch 14 is a switch that cuts off all power supply from the power source to each unit such as the display device 11 and a control unit described later.
By operating the power switch 14, the power ON state and the power OFF state are switched.

The weight sensors 15Lf, 15Lb, 15Rf, and 15Rb are sensors for measuring the weight of the measurer on the biological information measuring device 1, and are configured by four load cells in the present embodiment.
Each weight sensor 15 outputs a physical quantity corresponding to the weight value of the measurer, and the weight of the measurer is calculated based on each output value.
The body weight of the measurer calculated from each detection value of the weight sensor 15 is used to calculate the body composition BMI (Body Mass Index) and basal metabolism together with the basic information registered for the measurer. The body weight of the measurer includes the body impedance calculated from the detection value of the measurement electrode 12 and basic information, and the body fat percentage, the built-in fat level (rate), the body age, the bone level, and the skeletal muscle. Level and moisture content are calculated.

Each weight sensor 15 measures a load applied during measurement in units of 10 g.
In the present embodiment, the weight calculated in units of 10 g is used for storage in a measurement result history, which will be described later, and calculation of biological information such as body fat percentage, and the display device 11 is rounded to the nearest 100 g. Are all displayed in units of 10 g, or all units of 100 g can be used.
However, for simplification in the following description, a case where the unit is 100 g in storage, calculation, and display will be described.

The push switches 16L and 16R are arranged at two positions on the back side of the apparatus main body 10 and the front left and right, and are switches that detect that the measurer gets on the biological information measuring apparatus 1 (step-on).
When the biological information measuring device 1 is in a power saving state, when step-on is detected by the push switch 16, the measurement is started after returning from the power saving state.
In the biological information measuring apparatus 1 according to the present embodiment, the case where the two push switches 16L and 16R are arranged on the front left and right will be described. However, the push switches 16L and 16R may be arranged on the rear left and right. You may make it arrange | position to.

The weight sensor 15, the measurement electrode 12, and the push switch 16 can all function as part of a measurement time detection unit that detects the measurement time. In the present embodiment, all functions as part of the measurement time detection means.
That is, in the present embodiment, the weight sensor 15, the measurement electrode 12, and the push switch 16 detect that a foot is placed on the biological information measuring device 1 (measurement start), and the time at the time of detection is detected as the measurement time. .
Note that the measurement time may be the same standard, and in addition to the measurement start time, the time when the measurement of the body weight and the bioelectrical impedance is completed, the time when the measurement is taken off from the biometric information measurement device 1, and the like can be adopted.
The measurement time depends on the time output from the date / time information measurement unit 33 described later.

FIG. 2 shows functional blocks of the biological information measuring apparatus 1.
The biological information measuring apparatus 1 includes a control unit 20 that performs various controls on the entire apparatus such as calculation of biological information based on measurement results, display control thereof, storage in a measurement result history, and control corresponding to an input operation.
The control unit 20 includes a display unit 11, an operation unit 13, a push switch 16, A / D conversion units 31 and 32, a date and time information measurement unit 33, a communication unit 34, an audio output unit 35, and a nonvolatile memory that functions as a storage device 40 is connected.

The A / D conversion unit 31 converts the analog detection value input from each weight sensor 15 into a digital value and supplies the digital value to the control unit 20.
The A / D conversion unit 32 converts the analog detection value input from each measurement electrode 12 into a digital value and supplies the digital value to the control unit 20.

  The date / time information measuring unit 33 functions as part of a measurement time detection unit that measures the current date / time as the date / time information in units of year / month / day / hour / minute / second, and supplies the measured date / time information to the control unit 20. The date information may be supplied at every predetermined timing, or may be supplied in response to a request from the control unit 20.

The communication unit 34 functions as an output unit for outputting various measurement results obtained by the biological information measuring apparatus 1 to the outside.
The measurement result by the communication unit 34 is output wirelessly in this embodiment, but may be output by wire.
As an example in the case of wired, for example, output to various storage media such as a USB memory, and output to an external device such as a personal computer or a portable terminal via various cables are possible.
As a method for outputting the measurement result by wireless communication by the communication unit 34, Bluetooth (Bluetooth (registered trademark), infrared communication, NFC (registered trademark), ZigBee (registered trademark), WiMAX (Worldwide Interoperability Access (registered trademark)), Various types of wireless communication such as short-range wireless communication such as Wi-Fi (Wireless Fidelity (registered trademark)), 3G system, and 4G system can be used.
The communication unit 34 according to the present embodiment is configured to be able to input and output data using one or a plurality of methods among these various wired and wireless communications.

The voice output unit 35 is an output device that outputs a guidance voice for operation guidance corresponding to each input operation screen during an input operation, and outputs a beep sound after the measurement is completed.
About the sound and sound by the audio | voice output part 35, although it is set to ON which outputs as a default setting, it can be changed to OFF setting by user operation. Note that the default setting may be reversed.

The nonvolatile memory 40 is configured by a storage medium that stores various data, and stores a user information storage unit 41, measurement result history data 42, and other data.
FIG. 3 conceptually shows the contents of the stored data of the user information storage unit 41 and the measurement result history data 42.
As shown in FIG. 3A, the user information storage unit 41 stores user number, gender, height, and age specifying information as basic information for each user (measurer). The age specifying information may be information that can calculate the age of the user at the time of measurement, and corresponds to the age of the user at the time of registration, the registration date, the date of birth, and the like.

The measurement result history data 42 stores a user 1 history 421, a user 2 history 422,... For each registered user number.
As shown in FIG. 3B, each user history of the measurement result history data 42 stores weight (kg), bioelectrical impedance (Ω), and measurement date / time (year / month / day / minute).
In FIG. 3, bioelectrical impedance is represented by BI. The same applies to other drawings.

In the present embodiment, the case where the number of user registrations is four is described. However, any number of users can be registered as long as a plurality of measurers need to be recognized, such as five assuming a family of five. Yes, it can be unlimited.
In addition, the number of measurement histories stored in the measurement result history data 42 is sufficient if at least one latest data is stored for each registered user. However, the number is arbitrary, and in this embodiment, statistics, etc. Up to five measurement histories are stored for use in In the present embodiment, the latest measurement history (for one case) is used in the measurement process of the measurer, but the latest predetermined number (plurality) may be used, and the entire measurement history is used. Then, it may be configured to recognize the measurer.
In addition, when the measurement date and time is used as data for health management of each registered user based on the biometric information obtained from each measurement value, for example, the change over time such as the body weight and the body fat percentage is displayed as a graph. The information is stored as necessary information, but may not be detected and stored. In particular, when only the latest one is stored as the measurement history, the measurement date and time may not be stored.

FIG. 4 shows details of the display screen of the display unit 11.
FIG. 4 is a display screen showing the weight and body fat percentage after the measurement.
The display unit 11 functions as an output unit that displays the measurement result.
As shown in FIG. 4, the display unit 11 includes six display areas from the first display unit 111 to the sixth display unit 116.
The first display unit 111 and the second display unit 112 are regions in which measurement results and input values in input operations are displayed.
When the measurement result is displayed, the weight is displayed on the first display unit 111, and the calculated body composition value is sequentially switched every predetermined time (for example, 2 seconds) on the second display unit 112. Is displayed. The second display unit 112 sequentially displays body fat percentage, BMI, basal metabolism, skeletal muscle level, bone level, visceral fat level, water content, body age, and body fat percentage. While these body compositions are sequentially switched and displayed on the second display unit 112, the weight is continuously displayed on the first display unit 111.

  On the other hand, when the input value is displayed in the input operation, the year is displayed on the first display unit 111 and the date is displayed on the second display unit 112 in the input operation for setting the date and time or the user's birth date. In the date and time setting, the input time (hours and minutes) is displayed on the first display unit 111 after inputting the date.

The first display unit 111 and the second display unit 112 display measured values and input values, and display units (kg, cm,%, Kcal) of displayed items and display items corresponding to each display content. The supplementary characters (year, month, day, hour, minute, age) for are displayed.
In FIG. 4, the body weight (61.3 kg) and the body fat percentage (15.5%) are displayed as the measurement results after the measurement.

  The third display unit 113 is a graph that displays how far each body composition displayed on the second display unit 112 is from the standard value. A total of nine levels are displayed, including the standard three levels, the lower three levels, and the higher three levels.

The fourth display unit 114 displays item names of items being displayed on the first display unit 111 and the second display unit 112. In FIG. 4, the item name “weight” for the display of the first display unit 111 is displayed, and the item name “body fat percentage” for the display of the second display unit 112 is displayed.
Although not displayed in FIG. 4, “during measurement” is displayed on the fourth display unit 114 during measurement.

The fifth display unit 115 displays the user number and gender.
As for the user number displayed on the fifth display unit 115, the specified user number is displayed when the user is specified before the start of measurement, and the user automatically recognized from the measurement result in the automatic recognition mode. The number is displayed.
The gender displayed in the fifth display unit 115 is the gender stored in the user information storage unit 41 corresponding to the designated or automatically recognized user number, as shown in FIG. , “Female”.

  The sixth display unit 116 is a display area in which various states of the biological information measuring device 1 are displayed, and displays a remaining battery level display, a radio wave reception state, and the like.

Returning to FIG. 2, the control unit 20 includes a CPU that performs various arithmetic processes according to a program, a ROM that stores the program, a RAM as a work area, and the like.
The control unit 20 performs various processes such as calculation, display, and storage of biological information according to a measurement processing program stored in various storage media, and performs a measurer identification process in the present embodiment. As a functional block for performing each of these processes according to a program, the control unit 20 includes a weight calculation unit 21, a bioelectrical impedance calculation unit 22, a boarding / alighting determination unit 23, a body composition calculation unit 24, a measurer identification unit 25, and a measurement result storage control unit. 26.

The weight calculation unit 21 calculates the weight of the measurer from each weight value detected by each weight sensor 15 and converted into a digital signal by the A / D conversion unit 31. Specifically, the weight of the measurer is calculated by summing up the respective weight values.
The weight calculation unit 21 supplies the calculated weight of the measurer to the body composition calculation unit 24.

The bioelectrical impedance calculation unit 22 detects the resistance value between the measurement electrode 12L and the measurement electrode 12R detected by each measurement electrode 12 and converted into a digital signal by the A / D conversion unit 32 (between the left foot-body-right foot). The bioelectrical impedance of the measurer is calculated from the resistance value. For the calculation of the bioelectrical impedance, a known calculation method is adopted, and other body compositions are also calculated based on known calculation formulas and statistical data.
The bioelectrical impedance calculating unit 22 supplies the calculated biometric impedance of the measurer to the body composition calculating unit 24.

  The boarding / alighting determination unit 23 determines the step-on of the measurer based on a signal (switch ON signal) supplied from the push switch 16. As described above, when step-on is detected in the power saving state, the power saving state is canceled and measurement is started.

The body composition calculation unit 24 corresponds to the weight supplied from the weight calculation unit 21, the bioimpedance supplied from the bioimpedance calculation unit 22, and the user number identified by the designated user number or the measurer identification unit 25. Then, each body composition of the measurer is calculated using the user information (gender, height, age calculated from the date of birth) recorded in the user information storage unit 41.
The measured body weight and each calculated body composition are displayed on the display unit 11.

The measurer identifying unit 25 identifies the measurer by comparing the weight, bioelectrical impedance, and measurement time obtained by the current measurement with the measurement history for each user stored in the measurement result history data 42. That is, the measurer is recognized by specifying the user number of the measurer.
Specifically, a user whose difference between both measured values of body weight and bioelectrical impedance and a history value is within a predetermined range is set as a recognition candidate.

When there are a plurality of recognition candidates, the measurer identifying unit 25 recognizes a recognition candidate (user) having the largest number of histories whose difference is within a predetermined range as a measurer. When there are a plurality of recognition candidates having the largest number of histories, the recognition candidate having the smallest difference in bioimpedance of each recognition candidate is recognized as a measurer. Whether or not the difference with respect to the bioelectrical impedance is minimum may be determined based on the latest history or determined based on the average value of the differences for each corresponding history.
On the other hand, when there is no recognition candidate, the current measurer recognizes that the guest is a guest other than the registered user.

  The measurement result storage control unit 26 is the user number of the measurer identified by the measurer identifying unit 25, or the user of the measurer specified before the measurement, with the current measurement result (weight, bioelectrical impedance) and measurement time. The user history 421 to 424 corresponding to the number is saved.

Next, the operation of the measurement process performed by the biological information measuring apparatus 1 configured as described above will be described.
FIG. 5 is a flowchart showing the entire measurement processing operation.
The control unit 20 determines whether or not the mode has been changed by the measurer (step 10). That is, the control unit 20 determines whether or not another mode is selected by the operation of the operation unit 13 from the default mode (automatic recognition mode for automatically recognizing the measurer).

Here, as a mode selectable by the measurer, a user designation mode for performing measurement by designating a user, a guest mode for measurement by a measurer other than a registered user, a weight only measurement mode for measuring only the body weight, and this implementation There are various measurement modes such as luggage mode in the form.
The difference between the weight only measurement mode and the baggage mode is that the latter disables the key operation of the operation unit 13 while the former does not disable it. However, the weight only measurement mode can be included in the baggage mode, and in this case, steps 17 and 18 described later in FIG. 5 are not necessary.

When the mode is changed (step 10; Y), the control unit 20 stores the mode information corresponding to the changed mode in the nonvolatile memory 40, and determines whether the switched (selected) mode is the baggage mode. (Step 11).
When it is the luggage mode (step 11; Y), the control unit 20 performs the luggage mode measurement (step 12). This luggage mode measurement is a mode for measuring the weight of a luggage or the like in the present embodiment, and details thereof will be described later.
On the other hand, when not in the luggage mode (step 11; N), the control unit 20 measures the body weight (step 13). That is, the control unit 20 calculates the weight of the measurer by summing the weight values supplied from the four weight sensors 15 via the A / D conversion unit 31.
When the guest mode is selected, the control unit 20 acquires guest information (age, height, sex) input from the operation unit 13 by the measurer and stores it in the RAM before measuring the weight. To do.

And the control part 20 judges whether the weight measurement was completed (step 14).
When the measurement is not completed (step 14; N), the control unit 20 determines whether or not there is a measurement error (step 15). When it is a measurement error (step 15; Y), the control unit 20 displays an error in a predetermined area of the display unit 11 (step 16), and ends the process.
Here, as a case where the measurement error is determined, for example, there is a case where the measurer gets off after putting only one foot, and in this case, the control unit 20 is supplied with weight values from the four weight sensors 15. It is judged as a measurement error because the weight value has become zero before starting measurement.
On the other hand, if it is not a measurement error (step 15; N), the control unit 20 returns to step 13 and continues the measurement.

  Next, the control unit 20 determines whether or not the mode switched in step 10 is the weight only measurement mode (step 17). If the mode is the weight only measurement mode (step 17; Y), the control unit 20 performs the measurement. The weight is displayed on the display unit 11 (step 18), and the process is terminated.

In the case of only the body weight measurement mode (step; Y), the measured weight is stored as the measurement history for the designated or automatically recognized measurer (user) by displaying the measurement result and then moving to step 22. You may make it do.
When the measurement person is automatically recognized in the weight only measurement mode, the biometric impedance is removed from the determination target. For this reason, there is a possibility that the accuracy of automatic recognition is lowered. Therefore, whether or not the automatically recognized user is correct is always determined based on the confirmation display on the display unit 11 and the confirmation operation of the measurer. You may make it preserve | save as.

On the other hand, if the measurement mode is not the body weight only mode (Step 17; N), the control unit 20 measures the bioelectrical impedance (BI) (Step 19).
That is, the control unit 20 calculates the biometric impedance of the measurer from each resistance value supplied from the measurement electrode 12 via the A / D conversion unit 32.

And the control part 20 judges whether the measurement of bioelectrical impedance was completed (step 20).
When the measurement is not completed (step 20; N), the control unit 20 determines whether or not there is a measurement error (step 21). When it is a measurement error (step 21; Y), the control unit 20 proceeds to step 16 to display an error in a predetermined area of the display unit 11 and ends the process. The case where a measurement error is determined is the same as in the case of weight measurement.
On the other hand, if it is not a measurement error (step 21; N), the control unit 20 returns to step 19 and continues the measurement.

Next, the control unit 20 determines whether or not the mode switched in step 10 is the automatic recognition mode (step 22).
If it is not the automatic recognition mode (step 22; N), that is, if it is the user designation mode and the guest mode, the control unit 20 proceeds to step 26 because there is no need for automatic recognition.
On the other hand, when the automatic recognition mode is set (step 22; Y), the control unit 20 performs a measurer identification process for automatically identifying the measurer using the measured weight, bioelectrical impedance, and allowable range (step 23). ).

In this measurer identification process, the control unit 20 recognizes the measurer by comparing each element (weight, BI) of the measurement result with each history information of each registered user in the measurer identification process of the present embodiment. To do.
That is, the control unit 20 determines that the difference between the measured weight and the weight of the history data is within a predetermined range (for example, within ± 2 kg), and the difference between the measured BI and the BI of the history data is within a predetermined range ( For example, a registered user who is within ± 100Ω is set as a recognition candidate, and the measurer is recognized from the recognition candidate.
When there are a plurality of recognition candidates, the control unit 20 recognizes the recognition candidate (user) having the largest number of measurement histories whose weight and BI differences are both within a predetermined range as a measurer. When there are a plurality of recognition candidates having the largest number of measurement histories, the control unit 20 recognizes the recognition candidate having the smallest difference in bioelectric impedance among the respective recognition candidates as a measurer. In the present embodiment, whether or not the difference regarding the bioelectrical impedance is the minimum is determined for the latest history, but may be determined based on the average value of the differences for each corresponding history.
On the other hand, when there is no recognition candidate, the current measurer recognizes that the guest is a guest other than the registered user.

After the identification of the measurer is completed, the control unit 20 performs a measurer confirmation process (step 24).
That is, the control unit 20 displays the user number corresponding to the automatically recognized measurer on the fifth display unit 115 (see FIG. 4) of the display unit 11. For the measurer confirmation, the displayed user number is confirmed, and if it is correct, the setting key 13d is pressed, and if it is wrong, the user number displayed by the upper key 13a or the lower key 13b is changed. The measurer is confirmed by pressing the setting key 13d later.
The control unit 20 determines the measurer from the user number displayed on the fifth display unit 115 when the measurer presses the setting key 13d.
Note that the control unit 20 displays the automatically identified measurer (user number) on the fifth display unit 115, and when the operation unit 13 is not operated within a predetermined time, and when the measurer performs the biological information measurement apparatus 1. When getting off, it is confirmed to the measurer of the displayed user number.

The control unit 20 determines whether the measurer is confirmed (step 25).
When the measurer is not fixed (step 25; N), that is, when the clear key 13c is pressed, the control unit 20 ends the process.
On the other hand, when the measurer is determined (step 25; Y) and in the user designation mode (step 22; N), the control unit 20 stores the current measurement result (step 26). That is, the control unit 20 stores the weight, bioelectrical impedance, and measurement date / time in the measurement result history data 42 corresponding to the determined user number of the measurer.

Further, in parallel with the storage of the measurement result, the control unit 20 displays the measurement result on the display unit 11 (step 27) and ends the process.
In the display of the measurement result, as illustrated in FIG. 4, the control unit 20 displays the measured body weight value on the first display unit 111, and the body fat percentage value calculated from the body weight, the bioimpedance, and the user information. The display unit 112 displays a level display of the body fat percentage on the third display unit 113.
The fourth display unit 114 displays the item names of items being displayed on the first display unit 111 and the second display unit 112, and the fifth display unit 115 displays the user number and gender of the confirmed measurer. Is displayed.
The second display unit 112 first displays the value of the body fat percentage, and thereafter, every predetermined time (2 seconds in the present embodiment), the body fat percentage, BMI, basal metabolism, skeletal muscle level, bone level, Visceral fat level, water content, body age, body fat percentage are displayed in order. As the second display unit 112 is switched, the level display of the third display unit 113 and the item name of the fourth display unit 114 are also switched and displayed.
The body composition such as the body fat percentage displayed on the second display unit 112 is calculated from the body weight, bioelectrical impedance, and basic information, and the level display of the third display unit 113 is obtained from the statistics of the display item. Calculated based on standard values.

Next, details of the luggage mode measurement (step 12) will be described.
FIG. 6 is a flowchart showing details of the first example of the luggage mode measurement.
When this baggage mode is selected, the control unit 20 invalidates the key input by the operation unit 13 (step 30). The control unit 20 also invalidates a timer for detecting a no-operation state and shifting to a power saving state.

Then, the control unit 20 starts weighing the luggage (step 31) and determines whether the weighing is finished (step 32).
That is, the control unit 20 calculates the total of each mass by obtaining each mass that is loaded on the measurement surface, detected by each weight sensor 15, and converted into a digital signal by the A / D conversion unit 31. It is determined whether or not the measurement is finished depending on whether or not.

If the weighing has not ended (step 32; N), the control unit 20 determines whether or not the load has been unloaded from the measurement surface during the weighing (step 33). If the weighing has not been lowered (step 33). 33) It is determined that the measurement is being performed, and the process returns to step 32 to continue the measurement.
On the other hand, if the package is unloaded during measurement (step 33; Y), it is considered that the measurer determined that measurement by the package mode is unnecessary and the measurement was canceled, so the control unit 20 was invalidated. The key input of the operation unit 13 is validated (step 34), and the process proceeds to step 39.

When it is determined in step 32 that the weighing has been completed (step 32; Y), the control unit 20 displays a load (step 35).
That is, the control unit 20 displays the measured load (mass) of the load on the first display unit 111 of the display unit 11.
In the luggage mode of the present embodiment, the second display unit 112 to the fifth display unit 115 are not displayed, but “weight” or “load” may be displayed on the fourth display unit. Further, “package mode” may be displayed on the fifth display unit 115 as the current mode.

The control unit 20 determines whether or not the package has been unloaded (step 36). That is, the control unit 20 determines that the load has been unloaded when all the detection values by the respective weight sensors 15 supplied from the A / D conversion unit 31 are zero.
If the load has not been unloaded, the control unit 20 continues the determination (step 36; N). If the load has been unloaded (step 36; Y), the control unit 20 sets the invalidation of the operation unit 13 that has been invalidated. Key input is validated (step 37).

Thereafter, the control unit 20 determines whether or not the key operation of the activated operation unit 13 has been performed (step 38).
If there is no key operation, the control unit 20 continues the determination (step 38; N). If a key operation is performed (step 38; Y), the control unit 20 proceeds to step 39.
That is, the control unit 20 changes the mode information stored in the nonvolatile memory 40 from the package mode to the default mode, thereby changing to the default mode (automatic recognition mode) (step 39), and returns to the main routine. .

  As described above, in the baggage mode according to the present embodiment, the key operation of the operation unit 13 becomes invalid when the mode is selected, so that the load placed on the measurement surface touches the operation unit 13 or the like. It is possible to continue weighing without causing an error.

Next, a second example (modified example) of the luggage mode measurement will be described.
In the first example described with reference to FIG. 6, the case has been described in which the key input of the operation unit 13 is immediately activated after the measurement is completed and the package is unloaded (step 36; Y).
On the other hand, in the second example, the key input of the operation unit 13 is validated after a predetermined time elapses after the package is unloaded. According to the second example, it is possible to repeatedly measure a plurality of packages in the package mode once selected.

FIG. 7 is a flowchart showing details of the second example of the luggage mode measurement.
In addition, about this 2nd example, the same step number is attached | subjected about the same part as the 1st example demonstrated in FIG. 6, and the description is abbreviate | omitted suitably.
In the second example, when it is determined that the load has been unloaded from the measurement surface after the measurement is finished (step 36; Y), the control unit 20 starts a timer (step 362). This timer is a timer for re-measurement that is different from the timer that is invalidated in the baggage mode and that is used to determine the transition to the power saving state by detecting the no-operation state.

Thereafter, the control unit 20 determines whether or not a predetermined time set for remeasurement has elapsed (step 363).
In this embodiment, 2 minutes is set as the predetermined time, but other time (for example, 5 minutes) may be used. Further, when the package mode is selected, the user can select the remeasurement time, and when the user does not select the remeasurement time, a default value (for example, 2 minutes) may be used.
By providing this remeasurement time, the user can measure not only one package but also a plurality of packages.

If the predetermined time has not elapsed (step 363; N), the control unit 20 determines whether or not a load is placed on the measurement surface based on the presence or absence of a detection value at each weight sensor 15 (step 364).
If no package is loaded (step 364; N), the process returns to step 363 and continues monitoring whether the package is loaded until the remeasurement time elapses.
On the other hand, when a package is loaded (step 364; Y), the control unit 20 clears the timer for remeasurement (step 365), returns to step 31, and continues to measure the next package.

When the re-measurement timer started in step 362 has passed a predetermined time without loading (step 363; Y), the control unit 20 validates the key input of the operation unit 13 that has been invalidated (step 363). 37) The mode is changed to the default mode (automatic recognition mode) (step 39), and the process returns to the main routine.
In this second example, since the elapse of the predetermined time by the timer is determined, after the key input is validated (step 39), the default of the key operation by the user is not determined (step 38). Enter mode.

Next, a third example (modified example) of the luggage mode measurement will be described.
In the third example, in the package mode measurement described in the first example, processing is added when the power is turned off during the weighing of the package placed on the measurement surface.
FIG. 8 is a flowchart showing details of the third example of the luggage mode measurement.
In addition, also about this 3rd example, about the same part as the 1st example demonstrated in FIG. 6, the same step number is attached | subjected and the description is abbreviate | omitted suitably.
The weighing of the luggage is started (step 31), and when the weighing is not completed (step 32; N), the control unit 20 determines whether or not the power is turned off by the user (step 321).
If the power is not turned off (step 321; N), the control unit 20 determines whether or not the load has been unloaded (step 33). If the load has not been unloaded (step 33; N), the step Returning to 32, the power-off and monitoring of whether or not the load has been taken off is continued until the weighing is completed.

  On the other hand, when the power is turned off (step 321; Y), the control unit 20 then waits until the power is turned on by the user (step 322). When the power is turned on (step 322; Y), the control unit 20 performs step 34, the key input of the operation unit 13 which has been invalidated is validated (step 34), the mode information stored in the nonvolatile memory 40 is returned from the package mode to the default mode (step 39), and the main routine Return to

  In the third example described above, the case where the processing (steps 321 and 322) when the power is turned off during the weighing of the package is applied to the first example has been described. However, the power was turned off during the weighing. The process (steps 321 and 322) may be applied to the second example.

The embodiments of the present invention have been described above. However, the present invention is not limited to the described embodiments and modified examples, and various modifications can be made within the scope described in each claim. is there.
For example, in the embodiment described above, the case where the mode information is stored in the nonvolatile memory 40 has been described. However, the mode information may be stored in a volatile memory, for example, the RAM of the control unit 20.
By storing the mode information in the volatile memory, when the power switch 14 is switched to the OFF state, the mode information stored in the RAM is deleted, so that the default automatic recognition mode is automatically restored and the operation unit The 13 key operations are automatically enabled.
Thus, by storing the mode information in the volatile memory, it is possible to perform processing similar to the power-off processing (steps 321 and 322) according to the third example of the luggage mode.

DESCRIPTION OF SYMBOLS 1 Biological information measuring device 10 Apparatus main body 11 Display part 12 Measuring electrode 13 Operation part 13a Up key 13b Down key 13c Clear key 13d Setting key 14 Power switch 15 Weight sensor 16 Push switch 31, 32 A / D conversion part 33 Date / time information Measuring unit 34 Communication unit 35 Audio output unit 40 Non-volatile memory

Claims (6)

A weight measuring means for measuring the weight of the measurer;
Display means for displaying the result of the measurement;
An operation unit for performing an input operation disposed on a measurement surface on which a measurer rides during measurement,
User registration means for performing user registration of the measurer by an input operation of the operation unit;
Mode selection means for selecting a mode to be measured by an input operation of the operation unit;
When the baggage mode is selected by the mode selection means, input operation invalidating means for invalidating the subsequent input operation of the operation unit;
A biological information measuring device comprising: Bioimpedance measuring means for measuring the bioimpedance of the measurer;
Body composition calculating means for calculating body composition for calculating the body composition of the measurer from the measured body weight, the measured bioelectrical impedance, and the information of the measurer registered as a user,
The display means displays the measured body weight and the calculated body composition.
The living body information measuring device according to claim 1 characterized by things. The input operation invalidating means validates the invalidated input operation when a load placed on the measurement surface is unloaded in the load mode.
The living body information measuring device according to claim 1 or 2 characterized by things. The input operation invalidation means validates the invalidated input operation when the luggage placed on the measurement surface is dropped before the measurement by the weight measurement means is completed in the luggage mode.
The living body information measuring device according to claim 1 or 2 characterized by things. The input operation invalidation means validates the invalidated input operation after a predetermined time has elapsed since the measurement of the luggage placed on the measurement surface was completed in the luggage mode.
The living body information measuring device according to claim 1 or 2 characterized by things. The disabled input operation is enabled when the power is turned off and then the power is turned on.
The biological information measuring device according to any one of claims 1 to 5, wherein the biological information measuring device according to any one of claims 1 to 5 is provided.

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