JP2007040908A - Measuring instrument and measuring method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To detect a variation characteristic of fixed weight on the average, irrespective of a physique or the like of a subject or the like, by measuring a weight variation in a micro interval between an emergence time and a sleep time in a breast of the human being. <P>SOLUTION: In this measuring instrument provided with a bed capable of pressing a measuring part arranged with the subject in a backface side, by lying on the back of the subject, a CPU 15 converts a pressing quantity detected at the prescribed time interval by the each measuring part into a weight data, when an output data output from a sensor S2 is converted via an A/D converter 11, calculates a variation range of the converted weight data, and judges whether the calculated variation range of the converted weight data is converged to a prescribed value stored in a ROM 13, or not. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a measuring device and a measuring method for measuring a weight variation of each part of a human body.

  2. Description of the Related Art Conventionally, a flat flexible air cell laid on one main surface side of a bedding or a sitting device to which a person's weight is applied, and pressure detecting means for detecting the pressure of air in the air cell, the pressure detection Japanese Patent Application Laid-Open No. H11-228707, which is intended to detect the presence of a person or weight shift on the bedding or sitting tool based on the output of the means, is disclosed.

  This Patent Document 1 described below is a body movement detection device for detecting that a person is sleeping or sitting in a bedding, a squadron, and the like, and a sleep state is determined by detecting turning over when sleeping. is there.

  As a result, the sleep state can be determined without attaching the sensor directly to the human body, and the body movement in a wide area can be detected by one or at most several pressure sensors.

The following Non-Patent Document 1 suggests the possibility of measuring the weight of the heart (soul) in the human body as mass.
JP-A-5-192315 JAPET 1998 Regular General Meeting / Memorial Lecture “What is the Heart?” JAPET 1998.8. vol. 87. p9

  However, the above-mentioned Patent Document 1 is merely for determining the presence or absence of a human sleep state, and does not measure the state of the heart in the living body.

  Non-patent document 1 suggests the possibility of measuring the weight of the heart (soul) in the human body as mass, but there is no suggestion about the measurement method.

The present invention has been made to solve the above-described problems. The object of the present invention is to comply with the law of energy, which is a physical law, that is, E = mc ² (m is mass, c Is based on the speed of light), and we found that the weight fluctuations of each part of the human body converged to a certain range within a predetermined time during sleep and awakening. It is an object of the present invention to provide a mechanism for measuring the weight of the mind and quantifying it.

  The measuring apparatus of the present invention that achieves the above object has the following configuration.

  A measuring device comprising a measuring unit for measuring the mass of a subject in a supine posture, the calculating unit for calculating a variation range of weight data detected by the measuring unit at predetermined time intervals, and the weight calculated by the calculating unit And determining means for determining whether or not the fluctuation range of data has converged to a predetermined value.

  The energy measuring method of the present invention that achieves the above object has the following configuration.

  An energy measurement method in a measurement apparatus including a measurement unit for measuring a mass of a subject who is in a supine posture, wherein a calculation step for calculating a variation range of weight data detected by the measurement unit at predetermined time intervals, and the calculation step And a determination step of determining whether or not the calculated fluctuation range of the weight data has converged to a predetermined value.

  According to the present invention, by measuring the weight fluctuation within a minute interval between awakening and sleeping in the adult chest, an average constant weight increase / decrease characteristic regardless of the physique etc. of the subject etc. It can be detected.

  Thereby, the energy fluctuation amount in the chest in the living body can be converted into a numerical value and output.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

<Description of system configuration>
[First Embodiment]
Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram illustrating a schematic configuration of a measuring apparatus according to the first embodiment of the present invention. The energy E is a physical quantity converted to E = mc ² .
In addition, the present applicant measured mass fluctuation in the chest of the subject based on the following measurement conditions.

  First, the subject is in a posture of supine on the measurement unit, is in a state of spontaneous breathing, is in a state where the pulse is normal and calm (a state in which body weight movement due to blood flow movement in the blood vessel is not received).

  Second, the measurement interval is a predetermined time interval.

  Third, transition from a resting awake state to a sleeping state.

  Fourthly, transition from a sleep state to an awake state by an external factor.

  Fifth, the subject is an adult.

  In FIG. 1, reference numerals 1 to 4 denote members that support the head, chest, buttocks, legs, and the like when the subject lies on his back. In addition, although a test subject shows the example which lies on his back, he may lie in postures, such as leaning.

  Under the bases 1 to 4, pressure sensors S1 to S4 that detect pressing with such vertical load are disposed at predetermined positions. And the press signal of each sensor S1-S4 is connected to the interface 5 of the control apparatus 5 via the interface 20. FIG. Note that it is not necessary to provide all of the bases 1 to 4, and the present invention can be applied if only the pressure sensor S2 corresponding to the chest of the subject is provided. In particular, as will be described later, when the subject is an infant, since it is appropriate to calculate the mass difference from the entire body, the number of measurement units is not limited.

  The control device includes an interface 10, an A / D converter 11, a CPU 15, a timer 14, a RAM 12, a ROM 13, and the like. The CPU 15 loads the control program stored in the ROM 13 into the RAM 12, samples the pressing data that converts the analog signals output from the sensors S 1 to 4 into digital signals, and stores the predetermined data stored in the ROM 13. Compared with the convergence value (reference value), it is determined whether or not the subject has transitioned from the awake state to the sleep state.

  The principle of measuring body weight is that a fluid such as silicon oil is sealed inside, the pressure of the fluid is detected by pressure sensors S1 to S4, and the measured pressure is converted into body weight, for example, display device 7 To display digitally.

  At that time, the CPU 12 releases the energy concentrated on the chest when the subject is awake and the subject's chest during sleep based on the mass fluctuation (difference) of the subject's chest detected by the sensor S2. Is calculated by the following equation (1).

E = mc ² (1)
Further, the CPU 12 displays the calculated energy amount when the subject is awake and sleep when the subject is calculated on the display device 7 via the interface 6, or calculates the energy amount when the calculated subject is awake and sleep. Or output from the printing device 8 as converted data.

  9 is a database that accumulates data obtained by quantifying the amount of energy awakened and awakened by subjects according to the measurement date for each subject ID, read out timely, and manage as comparison verification data with the latest data Is done.

  The timer 14 is used for timer interruption processing for detecting mass fluctuation of the subject's chest at a predetermined timing. Thereby, the mass fluctuation | variation of a test subject's chest as shown in FIG. 2 mentioned later can be caught.

  Further, the means for measuring the mass of the subject's chest reads the numerical value directly indicated by the weight measuring device at a predetermined interval instead of processing and converting the signal from the pressure sensor S4 shown in FIG. It is good also as a structure which inputs mass data of a test subject's chest into CPU15 using (for example, a keyboard).

  Next, with reference to the characteristic diagram shown in FIG. 2, the action of increasing or decreasing the weight of each part as the blood volume moves when the subject lies on the bases 1 to 4 will be described. In addition, it is clear from the measured value that the fluctuation of the mass data of the chest due to the pulse is about ± 20 g.

  FIG. 2 is a diagram for explaining the weight fluctuation characteristics of each part of the body of the subject who is supine on the bases 1 to 4 shown in FIG. 1, the vertical axis indicates the weight (g), the horizontal axis is time, Each square corresponds to 1 minute.

  As shown in FIG. 2, when a subject with a total weight of 54 kg, for example, takes a supine posture on the bases 1 to 4, the blood in the legs and buttocks flows back to the chest, causing a mass change in the chest and a stable point. The mass increases by about 500 g (about 5 minutes after lying down).

  However, as shown in FIG. 2, the mass of the head and the leg does not exceed 100 g and hardly fluctuates.

  That is, among the parts of the subject, the chest part takes a supine posture, so that a mass change occurs, and thereafter, the mass of each part changes substantially constant after the stable point.

[Chest energy measurement process]
3 and 4 are diagrams showing mass fluctuation characteristics in the bases 1 and 2 shown in FIG. 1, and the same components as those in FIG. 2 are denoted by the same reference numerals. 3 shows the mass fluctuation characteristic of the head, and FIG. 4 shows the mass fluctuation characteristic of the chest.

  In FIG. 3, T <b> 1 indicates the initial sleep time when the subject who is supine on the bases 1 to 4 enters the sleep state, and T <b> 2 indicates the awake time when the sleep state returns to the awake state.

  The mass data shown in FIG. 3 is data processed by the CPU 15 according to the procedure shown in the flowchart described later.

  In particular, as shown in FIG. 3, in the mass conversion of the head, a large fluctuation occurs in the time T2-T1 from when the sleep state (sleep initial time T1) is entered until the head returns to the awake state (wake time T2). Absent. Although not shown, it is obvious that the buttock and the leg do not vary from the measurement result.

  On the other hand, an interesting mass fluctuation characteristic I is obtained for the chest as shown in FIG.

  Specifically, as shown in FIG. 4, after the mass fluctuation of the chest is stabilized, when the sleep state is entered at the sleep initial time T1, the mass data of the chest starts to decrease, and 17640 g (the subject is shown in FIG. 2). It becomes stable mass data for several minutes until just after awakening. Then, when the user awakes at the awakening time T2, the state transitions to a state that shows almost the same mass as that in the stable state shown in FIG.

  Meanwhile, since external noise is a blocked environment, it is very interesting that the mass data shows a specific mass fluctuation characteristic I even when considering the effects of respiration and blood flow. Is estimated to act around the chest.

  With this measurement process, the CPU 15 can derive from the measurement process of the subject that the difference in mass data between the chest during sleep and awakening is 130 g ± 20 g on average in adults.

  It can be seen from the measurement results that a slight mass fluctuation occurs in the head when the blood flow is not stable.

  Therefore, since the mass fluctuation characteristic I of the chest has no individual difference in the human biological rhythm from the measured mass data, the applicant of the present invention has the mass in the chest of the human living body during sleep. We can conclude that some energy that causes fluctuations is acting.

  FIG. 5 is a flowchart showing an example of an energy measurement processing procedure in the measurement apparatus according to the present invention. In addition, (1)-(10) shows each step. Each step is achieved by the CPU 15 loading a control program stored in the ROM 13 into the RAM 12 and executing it. Further, the ROM 13 stores in advance convergence value data V referred to by the CPU 15 in order to determine whether or not a mass fluctuation according to the mass fluctuation characteristic I is occurring.

  First, in step (1), when the output data of the sensors S1 to S4 is received with the subject lying on the bases 1 to 4, the output data of the sensor S2 corresponding to the subject's chest at the interrupt timing of the timer 14 The digital mass data D1 obtained by performing A / D conversion on the A / D converter 11 is sampled and stored in the RAM 12 (2).

  Next, the CPU 15 determines whether the mass data of the chest is increased by a predetermined g and is stable in the + direction so that the mass data sampled on the RAM 12 corresponds to the stable state (3).

  If it is determined that the obtained mass data of the chest is not stable in the + direction, the process returns to step (1) to sample the mass data of the chest.

  On the other hand, if it is determined in step (3) that the mass data stored in the RAM 12 is stable in the + direction, the mass data is stored in the RAM 12 as a chest mass when the subject is awakened. It is set as the awakening mass data W1 (4).

  Note that the awakening mass W1 substantially matches the characteristics shown in the chest mass data in the stable state shown in FIG.

  Next, the sensor S2 has an interrupt timing by the timer 14 until the subject whose chest mass data has increased by about g and has transitioned to the stable state in the + direction has transitioned from the awake state to the sleep state. Digital mass data D2 obtained by A / D converting the detected output data by the A / D converter 11 is sampled and stored in the RAM 12 (5).

  Next, the CPU 15 determines whether or not the minimum value MIND2 of the mass data D2 stored in the RAM 12 converges to a value obtained by subtracting the convergence value data V stored in the ROM 13 from the mass data D1 in the stable state. (6). When it is converged by this determination, the CPU 15 can determine that the sleep state has been entered.

  If it is determined that the minimum value MIND2 of the mass data D2 has converged to a value obtained by subtracting the convergence value data V stored in the ROM 13 from the stable mass data D1, the process proceeds to step (5). Return and repeat the sampling of the same mass data.

  On the other hand, if it is determined in step (6) that the minimum value MIND2 of the mass data D2 converges to a value obtained by subtracting the convergence value data V stored in the ROM 13 from the mass data D1 in the stable state, and is stable. The convergence stable value (converged mass data D) is set in the RAM 12 (7). That is, it shows that the mass data of the chest is stable in the negative direction, and the CPU 15 can determine that this state is a sleep state.

  Next, the CPU 15 subtracts the convergent mass data D from the digital mass data D2 set in the RAM 12 in step (5), and specifies the mass fluctuation value of the chest (8).

  Next, the CPU 15 calculates energy by substituting the mass variation value of the chest obtained in step (8) into the above equation (1) (9).

  Then, the calculated energy value of the subject's chest is displayed as numerical data on the display device 7 via the interface 6 or printed on a sheet of paper from the printing device 8 (10), and the process ends.

[Second Embodiment]
In the first embodiment, the case where the subject is measured as an adult has been described. Of course, the present invention can also be applied to a newborn (infant).

  When the subject is an infant, there is no need to partially measure the weight of the infant. For example, the infant may be housed in a heel member that covers the body and the mass fluctuation of the entire body may be measured.

  In addition, measurement conditions 1 to 4 for an infant are the same as those for an adult as shown below, but the fifth subject is an infant.

  First, the subject is in a posture of supine on the measurement unit, is in a state of spontaneous breathing, is in a state where the pulse is normal and calm (a state in which body weight movement due to blood flow movement in the blood vessel is not received).

  Second, the measurement interval is a predetermined time interval.

  Third, transition from a resting awake state to a sleeping state.

  Fourthly, transition from a sleep state to an awake state by an external factor.

  Fifth, the subject is an infant.

  However, the newborn measures the center weight of the whole body in the same manner as in the first embodiment, samples the mass data fluctuations when the newborn is awake and sleeps, It shall be calculated.

  Moreover, since the difference of the mass data of a newborn is derived from the measurement data that is 50 g unlike an adult, the value is used as a reference.

  In addition, since the newborn infant and the infant grow about about 10g every predetermined time, it cannot be overemphasized that the reference | standard of the said value should estimate the optimal value.

[Third Embodiment]
In the above embodiment, the case where energy calculated from the measured subject's mass fluctuation data is output has been described. However, by storing and managing the energy data in the database 9, There is a possibility that further biological characteristics can be elucidated by collaborating with research on fluctuation and research on brain.

It is a block diagram explaining the schematic structure of the measuring apparatus which shows 1st Embodiment of this invention. It is a figure explaining the weight fluctuation characteristic of each part of the body of a subject who lies on the base shown in FIG. It is a figure which shows the mass fluctuation characteristic in the base shown in FIG. It is a figure which shows the mass fluctuation characteristic in the base shown in FIG. It is a flowchart which shows an example of the energy measurement process sequence in the measuring apparatus which concerns on this invention.

Explanation of symbols

1-4 Base 5 Controller 11 A / D converter 12 RAM
13 ROM

Claims (7)

A measuring device comprising a measuring unit for measuring the mass of a subject who has taken a supine posture,
A calculation means for calculating a variation range of weight data detected by the measurement unit at predetermined time intervals;
Determining means for determining whether or not the variation range of the weight data calculated by the calculating means has converged to a predetermined value;
A measuring apparatus comprising:   The measurement apparatus according to claim 1, further comprising an output unit that outputs energy of a specific part of the subject calculated by the calculation unit.   The measuring apparatus according to claim 1, further comprising a database that stores the weight data as history data.   The measurement apparatus according to claim 1, wherein the measurement unit can measure the mass of the chest region in a state where the subject is in a supine posture. An energy measurement method in a measurement device comprising a measurement unit for measuring the mass of a subject who has taken a supine posture,
A calculation step for calculating a variation range of weight data detected by the measurement unit at predetermined time intervals;
A determination step of determining whether or not the fluctuation range of the weight data calculated by the calculation step has converged to a predetermined value;
An energy measurement method comprising:   The energy measuring method according to claim 4, further comprising an output step of digitizing and outputting the energy of the specific part of the subject calculated by the calculating step.   The energy measurement method according to claim 5, wherein the measurement unit is capable of measuring the mass of the chest region in a state where the subject is in a supine posture.

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