JP2003024287A - Monitor device for body state - Google Patents

Abstract

PROBLEM TO BE SOLVED: To monitor a body state by performing the evaluation of motion and the evaluation of physiological information at the same time. SOLUTION: An acceleration sensor 11 and an angular velocity sensor 12 are mounted on the body such as an arm and a pulse wave sensor SR is also mounted thereon and the respective detection signals of the acceleration, angular velocity and pulse wave of these sensors are transmitted by a radio transmission means 22. The body state wherein both of the motion and the physiological information are combined can be monitored by using the data related to the motion of the acceleration and angular velocity and the physiological data being pulse waves. For example, a warning signal is outputted when pulsation is abnormally high through quantity of motion is little.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a body condition monitoring apparatus, and more particularly to a novel body or body motion of a person or an animal, for example, a motion evaluation based on a swing of an arm, and a biological information evaluation. The present invention relates to a physical condition monitoring device.

[0002]

2. Description of the Related Art Conventionally, there is no prior art for evaluating the motion of a user such as an old person and evaluating biological information. For example, Japanese Patent Laid-Open No. 10-295651 discloses
A configuration that reflects the amount of exercise of the user in the physical examination is disclosed, and Japanese Patent Laid-Open Nos. 2000-41952 and 2000-41953 also disclose a configuration for evaluating exercise. JP-A-9-18
7433 discloses a configuration in which a physical condition abnormality is notified by the output of a pulse wave sensor attached to an ear lobe. Therefore, the prior art has not realized a configuration for monitoring a physical condition using exercise and biological information.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a body condition monitoring device capable of monitoring a body condition using motion evaluation and biological information evaluation.

[0004]

According to the present invention, there is provided a motion sensor which is attached to a body and detects at least one of acceleration and angular velocity, a pulse wave sensor which is attached to a body and detects a pulse wave, a motion sensor and a pulse wave sensor. A device for monitoring a physical condition, comprising means for calculating and monitoring information representing the physical condition in response to the output of the wave sensor.

According to the present invention, the motion sensor and the pulse wave sensor are provided on a belt which is detachably attached by being wound around the upper limb or the lower limb of the body, for example, to detect at least one of acceleration and angular velocity and to detect the pulse wave. It is possible to detect and thereby calculate and monitor the information representing the physical condition. The physical condition is a condition obtained by using both motion evaluation and biometric information evaluation.

According to the present invention, the calculation and monitoring means is integrally attached to the motion sensor and the pulse wave sensor, and transmits the signal related to the outputs of the motion sensor and the pulse wave sensor. The present invention is characterized by including a calculating means for receiving the output and calculating the information indicating the physical condition, and a display means for responding to the output of the calculating means and displaying the information indicating the physical condition.

According to the present invention, the calculation and monitoring means is integrally attached to the motion sensor and the pulse wave sensor, and the calculation means for calculating information representing the physical condition and the motion sensor and the pulse wave sensor are integrated. Display means for displaying information representing a physical condition, the display means being mounted and responsive to the output of the computing means.

According to the present invention, the outputs of the motion sensor and the pulse wave sensor are transmitted as electromagnetic waves by the transmitting means using radio waves or light such as infrared rays, and the electromagnetic waves are received and calculated, and the body is operated. The state information may be displayed by the display means, or the movement sensor and the pulse wave sensor may be integrally provided with a calculation means for calculating the body state information and a display means for displaying the information. You may comprise. The display means may have a configuration for performing visual display having a liquid crystal display panel, but may have a configuration for outputting sound, or may be realized by a configuration for performing display by vibration or the like.

Further, according to the present invention, the motion sensor has an acceleration sensor for detecting acceleration and an angular velocity sensor for detecting angular velocity, and the calculating means calculates outputs from the acceleration sensor and the angular velocity sensor to obtain a momentum. In response to the outputs of the exercise amount calculating means, the pulse calculating means for calculating the pulse by calculating the output of the pulse wave sensor, the output of the exercise amount calculating means and the pulse calculating means,
The exercise amount is less than a predetermined first value Q1 and normal, and the pulse is more than a predetermined second value u1 and excessive, or the exercise amount is less than a second value u1 and a predetermined third value And a warning unit that outputs a warning signal when the value is less than the value u2 and is too small.

Further, according to the present invention, the motion sensor has an acceleration sensor for detecting an acceleration and an angular velocity sensor for detecting an angular velocity, and the computing means computes outputs of the acceleration sensor and the angular velocity sensor to obtain a momentum. In response to the outputs of the exercise amount calculating means, the pulse calculating means for calculating the pulse by calculating the output of the pulse wave sensor, the output of the exercise amount calculating means and the pulse calculating means,
When the amount of exercise is a predetermined value Q1 or more, which is excessive, and when the pulse is a second value u1, which is a predetermined value or more, an alarm means for outputting an alarm signal is included.

According to the present invention, the first amount of exercise is predetermined.
If the pulse rate is less than or equal to the normal value but the pulse rate is too high or too low, an alarm signal is output.If the exercise amount is too high and the pulse rate is too high, an alarm signal is output. . With this, rather than judging the abnormality of the body with only one of the motion sensor or the pulse wave sensor,
False alarms can be avoided.

The alarm signal may be configured to be transmitted to a processing device including a computer provided in a hospital or a welfare facility, for example. The alarm signal regarding the evaluation of exercise may be configured to be transmitted to a processing device including a computer provided in, for example, a fitness club or the like.

According to the present invention, the angular velocity sensor is attached to the upper limb or lower limb of the human body, and is perpendicular to the longitudinal direction X of the upper limb or lower limb to be worn and the width direction Y of the upper limb or lower limb to be worn. A gyro sensor for detecting an angular velocity ωz around the axis.

According to the present invention, the angular velocity sensor may be attached to the upper limb of the human body, for example, the wrist of the arm, or may be attached to the lower limb, for example, the ankle. By detecting the angular velocity ωz about the Z axis perpendicular to and with the gyro sensor, the momentum of the user can be accurately obtained.

Further, according to the present invention, the pulse calculating means includes a noise removing means which responds to the output of the acceleration sensor and removes noise contained in the output of the pulse wave sensor in a state where the pulsed output of the acceleration sensor is obtained. It is characterized by

According to the present invention, when the pulse is calculated, noise included in the output of the pulse wave sensor is removed corresponding to the pulse included in the output from the acceleration sensor. The noise contained in the output of the pulse wave sensor is likely to occur when at least a part of the body, for example, the upper limb or the lower limb, moves a lot, and for example, blood in a blood vessel is moved by the movement of the part of the body, which causes the pulse. The result is that the waves are noisy. Therefore, in the present invention, when pulse-shaped acceleration occurs, noise included in the pulse wave is removed. In this way, it is possible to accurately detect the pulse wave.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing a simplified overall configuration of an embodiment of the present invention. The body sensing device 301 is attached to, for example, a human body. The signal wirelessly transmitted from the body sensing device 301 is received by the receiver 362 in the receiving terminal device 361, and the terminal means 36 connected to the receiver 362 by the line 363.
4, the physical condition can be calculated and monitored. When the physical condition of the user is abnormal, an alarm signal can be output to give a warning, and an emergency call to a hospital, welfare facility, etc. can be made via a public telephone line or the like.

FIG. 2 is a block diagram showing the overall configuration of the body sensing device 301. Body sensing device 3
An acceleration sensor 11 is provided to detect the acceleration of a part of the body 4 (see FIG. 14 described later) to which 01 is attached. A gyro sensor 12, which is an angular velocity sensor, is provided to detect the angular velocity of a part of the body. Further, a pulse wave sensor SR that detects a pulse wave is provided. The outputs of the sensors 11, 12 and SR are given to the signal processing means 365 to 367 to be signal-processed, and the processing circuit 3 realized by a microcomputer or the like.
Given to 68. The output of the processing circuit 368 is given to the communication circuit 22 and wirelessly transmitted.

FIG. 3 is a block diagram showing a specific structure of the body sensing device 301. The body sensing device 301 controls a sensor indicated by reference numeral SR, a transmission processing unit 305 that controls the operation of the sensor SR and receives a detection signal thereof, and an output from the transmission processing unit 305 is a radio wave or the like. And transmitting means 306 for transmitting the electromagnetic wave.

On the upper limb 308 of the human body 4, for example, by a belt 309 which constitutes the body sensing device 301,
The sensor SR is attached so as to be in close contact with the human body. By thus providing the sensor SR in close contact with the upper limb 308, it is possible to prevent the sensor SR from moving away from the body even if a body movement that moves the upper limb 308 occurs, and reliable detection is possible. The body sensing device 301 may be attached not only to the upper limb 308 but also to the lower limb, or may be used by being attached so that the sensor SR is in close contact with a part of the body.

FIG. 4 is a simplified perspective view of the body sensing device 301. The belt 309 is made of a flexible material such as cloth or synthetic resin, and may be circular in a natural state. A housing 311 is fixed to the outer peripheral portion of the belt 309.
The processing unit for transmission 305, the transmission unit 306, and the like are housed in the unit 1.

As shown in FIG. 4, the light receiving element 3 is provided between the two light emitting elements 314 and 315 in the circumferential direction of the belt 309.
16 are arranged. In this way, each light emitting element 314, 315
The scattered light of the biological tissue due to can be accurately received by the light receiving element 316.

FIG. 5 shows that the body sensing device 301 is a person 3
It is a sectional view showing the state where it was equipped with 07 upper limbs 308.
The sensor SR is provided inside the belt 309, and the upper limb 3
It is attached so as to be in close contact with the palm side of 08.

The sensor SR outputs red light 317 (see FIG. 5).
The red light emitting element 314 that generates the infrared light, the infrared light emitting element 315 that generates the infrared light 318 (see FIG. 5), and the red light 317 and the infrared light 318 are irradiated to the upper limbs, and the living tissue Light receiving element 31 for receiving scattered light in common
6 and.

FIG. 6 shows an output waveform of the light receiving element 316 when the red light from the red light emitting element 314 is applied to the upper limb 308 and the light scattered by the living tissue of the upper limb is received by the light receiving element 316. At this time, the infrared light emitting element 3
15 is inactive. The detection signal of FIG. 6 obtained from the light receiving element 316 when the red light emitting element 314 emits light includes a pulse wave component 321 and a direct current component 322. Pulse wave component 32
The peak-to-peak value of 1 is indicated by reference numeral AC1 and the DC component 322 is indicated by reference numeral DC1. Similarly, the infrared light from the infrared light emitting element 315 is irradiated to the upper limb 308,
When the light receiving element 316 receives the light scattered by the living tissue of the upper limb, the pulse wave component and the DC component similar to those in FIG. 6 are obtained, and the red light emitting element 314 is inactive at this time. When the infrared light is emitted from the infrared light emitting element 315,
AC2 is the peak / peak value of the pulse wave component of the detection signal obtained from the light receiving element 316, and the DC component at that time is DC.
Set to 2. As a result, the value Φ corresponding to the oxygen saturation SpO ₂ of arterial blood can be calculated and obtained.

[0026]

[Equation 1]

The oxygen saturation SpO ₂ can be obtained based on the value Φ obtained by the equation 1.

The pulse wave component 321 of the detection signal from the light receiving element 316 when the infrared light shown in FIG.
The pulse can be obtained by calculating the period ΔT of. In another embodiment, the pulse may be calculated from the cycle of the pulse wave component of the detection signal obtained from the light receiving element 316 during irradiation of infrared light.

The detection signal from the light receiving element 316 of the sensor SR of the body sensing device 301 is transmitted by the transmission processing means 33.
Given to 5. Of these detection signals, a detection signal containing extraneous light and a detection signal not containing extraneous light are determined,
One of the detection signals that does not include extraneous light is selected and transmitted by the transmission means 306.

In another embodiment of the present invention, the pulse wave can be measured by using one of the red light and the infrared light or the light of one color such as blue light.

FIG. 7 is a diagram showing the structure of the transmission signal 371 transmitted from the transmission circuit 22. This transmission signal 371
Is an identification code 372 indicating the user wearing the body sensing device 301, a type code 373 indicating the type of detection signal such as acceleration, angular velocity and pulse wave, and detection data 374 which is the value of the detection signal. Including. In another embodiment of the present invention, the carrier frequency of the wireless signal may be different for each of the plurality of body sensing devices 301. The receiver 362 of the receiving terminal device 361 receives the radio signal from each body sensing device 301, responds to the detection signal included in the radio signal, and determines the oxygen saturation of arterial blood.
Calculate and obtain values that represent pulse rate and other health conditions. In the processing device 302, each body sensing device 3
When an abnormality in the health condition of the person 307 wearing 01 is detected, an alarm signal indicating this is given to the emergency notification terminal device 26 from the line 325. The emergency notification terminal device 326 responds to the alarm signal and is installed in the central management center 3 through a line wired in the hospital building or a public telephone line.
The emergency call signal 328 is transmitted to 27. This allows a doctor or the like to be dispatched to observe and confirm the health condition of the person 307, and prevent the health condition of the person 307 from being deteriorated.

FIG. 8 is a waveform diagram for explaining a part of the operation of body sensing device 301 shown in FIG.
The body sensing device 301 includes a battery 329,
It is driven by the electric power of this battery 329. Sensor SR
The detection signal from the light receiving element 316 of the
It is amplified by the amplification circuit 332 in 05. The red light emitting element 314 of the sensor SR is controlled by each control signal from the light emitting element scheduling circuit 334 of the processing circuit 333 realized by a microcomputer or the like.
As shown in FIG. 8 (1), it is driven intermittently at a constant cycle. The infrared light emitting element 15 is intermittently driven by the light emitting element scheduling circuit 334, as shown in FIG. These light emitting elements 314, 315
May be inactive while one is being driven and its blinking frequency may be, for example, 300 Hz.

The light emitting element scheduling circuit 334 includes:
The red light emitting element 314 of the sensor SR is driven for the period W1 and the infrared light emitting element 315 is driven for the next period W2. For example, W1 = W2.
W1 + W2) is repeated. For example, the detection signal of the light receiving element 316 of the sensor SR is given to the amplifier circuit 332 via the changeover switch 331, and is changed and given from the changeover switch 337 to the red light sample hold circuit 338 and the infrared light sample hold circuit 339, respectively. . When the red light emitting element 314 is driven in the period W1, the output of the amplifier circuit 332 is the changeover switch 3
It is supplied from 37 to the red light sample hold circuit 338. In the period W2 in which the infrared light emitting element 315 is driven, the output of the amplifier circuit 332 is given to the infrared light sample hold circuit 339 from the changeover switch 337.

A signal given from the amplifier circuit 332 to the sample hold circuit for red light 338 through the changeover switch 337 during the period W1 in which the red light emitting element 314 is driven is indicated by reference numeral 341 in FIG. 8 (3). Be done. During the period W2 in which the infrared light emitting element 315 is driven, the amplifier circuit 33
The signal supplied from the No. 2 through the changeover switch 337 to the infrared light sample hold circuit 339 is indicated by reference numeral 342 in FIG. 8 (3). Each of these signals 341, 342
Is sampled by each of the sample and hold circuits 338 and 339, and the sampled value is held until the next sampling and updated to a new sampled value.
The red light sample and hold circuit 338 samples the output 341 given from the amplifier circuit 332 through the changeover switch 37 in the period W1, and the infrared light sample and hold circuit 339 gives the output 341 from the amplifier circuit 332 through the changeover switch 337. Signal 342 for a given period W2
To sample. Thus, the red light sample hold circuit 338 derives the output 343 of FIG. 8 (4), and the infrared light sample hold circuit 339 outputs the output 34 of FIG. 8 (4).
Derive 4

The cut-off frequency of the low-pass filters 343, 344 to which the outputs of the sample-hold circuits 338, 339 are given is selected to be about 10 Hz, for example. Therefore, even if external light such as illumination light of 60 Hz or 50 Hz is mixed in the light receiving element 316, the component of such external light is blocked.

The output waveforms from the low-pass filters 343 and 344 are shown by reference numerals 345 and 346 in FIG. 8 (5), respectively. Thus, the low-pass filters 343, 34
Light receiving element 316 corresponding to red light and infrared light from 4
The output corresponding to the detection signal of 1 contains a pulse wave component and a DC component. The bandpass filters 348 and 349 are about 1.5.
Pass and filter signals in the ~ 10 Hz frequency band. Therefore, the outputs of the bandpass filters 348 and 349 are the red light emitting element 314 and the infrared light emitting element 31.
5, the light receiving element 31 in each period W1 and W2
Of the 6 detection signals, only the pulse wave component is included.

The outputs of the low-pass filters 343 and 344 and the band-pass filters 348 and 349 are converted into digital signals by analog / digital (abbreviated as A / D) converters 352 and 353, and a processing circuit realized by a microcomputer or the like. 354.

FIG. 9 is a flow chart for explaining the operation of the processing circuit 354. Moving from step a1 to step a2, the processing circuit 354 sets the low-pass filter 3
The digital signal of the detection signal including the pulse wave component and the DC component from 43 and 344 is read, and the digital signal of the pulse wave component from the band pass filters 348 and 349 is read. The processing circuit 354 executes the sensor SR in the next step a3.
Among the detection signals including the pulse wave component and the DC component filtered by the low-pass filters 343 and 344, the detection signal including the external light and the detection signal including no external light are determined and selected.

FIG. 10 shows a waveform 356 of the detection signal from the light receiving element 316 for explaining the operation of the processing circuit 354 determining and selecting the detection signal containing the external light and the detection signal containing no external light. FIG. The waveform 356 of the detection signal includes the pulse wave component AC1 and the direct current component DC1 due to the red light in the period W1. This detection signal 3
A predetermined value ΔL in which the amount of change Δx within a predetermined time W3 of 56 exceeds the peak / peak value AC1 of the pulse wave component
(However, when less than AC1 <ΔL) (that is, in FIG.
As in 0, Δx <ΔL), the detection signal 356 is determined to be a detection signal containing no extraneous light. Further, the change amount Δ
When x is equal to or larger than the predetermined value ΔL (that is, Δx ≧ ΔL), the detection signal 356 is determined to be a detection signal including extraneous light.

A belt 309 attached to the upper limb of the person 307
Is closely wound around the upper limb 308, and therefore when the sensor SR is in contact with the surface of the skin of the upper limb 308, the scattered light by the biological tissue is received and the light receiving element is used as a detection signal containing no extraneous light. Although derived from 316, when the sensor SR is separated from the skin, not only scattered light from living tissue but also external light such as illumination light and sunlight enters the light receiving element 316, and from the light receiving element 316. , A detection signal including extraneous light is derived. Light receiving element 31
When extraneous light is mixed in 6, the level Δ of the detection signal 356
x changes greatly and becomes unstable. Therefore, in the present embodiment, the change amount Δx in the predetermined time W3 is calculated and obtained, and when the change amount Δx is equal to or larger than the predetermined value ΔL, the detection signal 356 detects the external light as described above. It is determined that the detected signal includes the detected signal.

The predetermined time W3 is set to a time substantially equal to the pulse of the person 307 to be detected, and may be set to a value within the range of 0.5 to 1 second, for example. When this time W3 is selected to be, for example, a half cycle of the pulse, the change amount Δx has a value almost equal to the pulse wave component AC1 (Δx≈
AC1). Even in such a case, the detection signal 356
In order to be able to determine whether or not external light is included in the
Is a value that exceeds the peak-to-peak value of the pulse wave component AC1 (A
C1 <ΔL). In this way, it is possible to determine whether or not the detection signal of the light receiving element 316 is a detection signal containing extraneous light. The detection signal of the light receiving element 316 may be the detection signal of the period W1 in which the red light emitting element 314 is driven, but in another embodiment of the present invention, in the driving period W2 of the infrared light emitting element 315. It may be output.

In another embodiment of the present invention, the detection signal (= AC1 + DC1) may be level discriminated by a predetermined value to determine whether or not the detection signal includes external light.

Further, in another embodiment of the present invention, the processing circuit 354 may be configured not to determine the presence or absence of the external light as long as the contact state of the sensor SR with the upper limb 308 is good.

Referring again to FIG. 3, in the body sensing device 301, the acceleration sensor 11 for detecting the acceleration in the specific direction, the angular velocity sensor 12 for detecting the angular velocity of rotation parallel to the specific surface, and the mechanical sensors thereof. The sensors, which are vibrators, are excited respectively (the drive signals are P130 and P14).
0) Also, acceleration and angular velocity detection signals P11 and P
An acceleration measuring circuit 13 and an angular velocity measuring circuit 14 for extracting 12 and performing processing such as detection and amplification and outputting a voltage proportional to the detected value are included.

The acceleration output P13 and the angular velocity output P14 within a predetermined period (variably considered such as determined by the user himself, previously determined by the user and medical personnel, or determined by the device by his / her own clock) are respectively determined. A predetermined calculation is performed by the acceleration calculation circuit 15 and the angular velocity calculation circuit 16. The predetermined operation is to process the waveforms of the signals P13 and P14 and convert the signals, for example, extracting the peak value of the input waveform, performing rectification / smoothing and averaging, and a waveform appearing in a predetermined period. To obtain the variance of the peak value, sample the signal for a predetermined period of time to obtain the variance, and further obtain the logarithm of them, or perform other mathematical processing, or obtain the period of the oscillating waveform. Means things etc. The motion data, which is their output, is an acceleration calculation output P15 and an angular velocity calculation output P16. Both outputs are transmitted by the communication circuit 22.
For example, a radio wave output P22 is transmitted together with the external device 2. Data is sent and received by both communication circuits 2
2 and 23 cooperate with each other, and bidirectionally performed while checking each other's operations. Further, the control circuit 24 acts on each circuit in the body-side device 1 to control signals P241, P242, P24.
3, P244, P245 are generated, and it has a role of adjusting the operation timing of each circuit and the cooperative operation between each circuit.

FIG. 11 is a block diagram of the receiving terminal device 361 which is the external device 2. The configuration and operation of this device 361 are as follows. The communication circuit 23, which has received the exercise data included in the radio wave signal P22, demodulates it and converts it into an internal signal P23. The motion determination circuit 17 uses the internal signal P
23, the two types of information of the acceleration calculation output and the angular velocity calculation output included therein are compared with the respective numerical ranges that have been experimentally obtained in advance for some types of motion, and used within a certain period. The type of exercise performed by the person and its intensity are determined. Alternatively, information on the evaluation (for example, progress status of rehabilitation) for the determined exercise is also added.

The determination result signal P17 including these pieces of information is stored in the storage device 19 and is also sent to the display device 18 (including necessary circuits) so that its contents (kind of exercise, intensity, evaluation thereof) and the like are stored in advance. It is displayed together with the personal information of the registered user and recorded by the recording device 21 to enable the diagnosis of an observer such as a medical staff. Further, the storage signal P19 including the stored contents is reproduced as needed by the reproduction circuit 20 as the reproduction signal P20 and displayed by the display device 18. The control circuit 25 acts on each circuit in the external device 2, receives the reception signal P231, and receives the control signals P251, P252, P253, P254, P255, and P255.
P256 is generated and has a role of adjusting the operation timing of each circuit and the coordinated operation between each circuit.

An example of a specific form of the embodiment of the motion measuring apparatus of the present invention will be introduced below with reference to FIGS. 12 and 13. 12A and 12B show an example of the body sensing device 301, FIG. 12A is a partial plan view, and FIG. 12B is a sectional view taken along line AA. The body sensing device 301 has a substantially wristwatch shape and is equipped with a wristband 36 so that it can be worn on the wrist. The motion sensor 31 and the display device 3 are the main parts.
2, a communication circuit module 33 with an external device, a battery 34 as a power source, and an operation switch 35 are shown. The body sensing device 301 is thin so that wearing it does not burden the user.
It must be small. The display device 32 is arranged on the widest surface corresponding to the display surface of the wristwatch when importance is attached to viewability. The motion sensor 31 is also arranged on the same plane and thus parallel to the display device 32. Since a thin display device 32 such as a liquid crystal display panel can be used, the motion sensor 31 must also be packaged in a sufficiently thin package.

The reason why the thin motion sensor 31 is arranged in parallel with the display device 32 is as follows. As described above, the optimum motion detection direction is the vertical motion of the body for the acceleration G, that is, the X direction in FIG. Regarding the rotational angular velocity ω, rotation about the Z axis perpendicular to a plane including both the up-down direction X and the front-back direction Y of the body (ωz direction in FIG. 12), that is, the left-right direction of the body,
In addition, the rotation motion is about a horizontal rotation axis (parallel to the Z axis in FIG. 12). When the body-side device 3 is attached like a wristwatch so that the display surface is on the back side or the palm side of the wrist, this is the most natural, and when the state is upright and the elbow is bent and stretched naturally, the rotation surface is Since it becomes parallel to the display surface of the body side device 3, that is, the display device 32, if there is a thin angular velocity sensor having a rotation detection surface parallel to the widest surface,
It is preferable to dispose the motion sensor 31 including it in parallel with the display device 32.

FIG. 13 is a plan view showing an internal structure of an example of motion sensor 31 in accordance with the exemplary embodiment of the present invention. The structure of the motion sensor 31 satisfies all the requirements regarding the shape, arrangement, and detection direction as described above. In FIG. 13, the lid (ceiling ceiling portion) is removed in order to show the internal structure of the container 40 which is thin and airtight (preferably vacuum). A large number of hermetic terminal pins 41 that penetrate the bottom of the container 40 are provided. Each pin 41 is connected to each of the electrode film groups on the motion sensor vibrating body 50 by, for example, a wire bonding method, but the electrode film and the bonding wires are not shown. The motion sensor vibrating body 50 is formed from a single flat plate of voltage material, and the acceleration sensor unit and the angular velocity sensor unit are integrated. The motion sensor vibrating body 50 has a fixed portion A52 (hatched portion) on the back surface of the total base portion 51.
And the back surface of the small area fixed portion B64 (hatched portion)
It is adhered and supported on a pedestal (not shown) on the 0 side.

The angular velocity sensor portion is a so-called tripod-shaped portion, and each L-shaped outer leg A53 and outer leg B5 have their free ends bent outward (vertical direction in FIG. 13).
5, a middle leg C54, a tuning fork base portion 56, and a fulcrum 57. The outer leg A53 and the outer leg B55 are cantilevered like the ordinary two-leg tuning fork, and each vibrate symmetrically with respect to the axis of symmetry (not shown). It is excited by a circuit) with a constant amplitude. The middle leg C54 is not excited, but has a surface electrode (not shown) for detecting its deflection. 58A, 58B, 58 shown with hatching different from the fixed part
C is a load mass, and is composed of a thick metal plating layer applied to the tip ends of the legs in order to lower the natural frequency and make them equal to each other. The natural frequency of the middle leg C54 may be appropriately different from the natural frequency of both outer legs.

Now, the motion sensor vibrating body 50 is in the direction shown in the figure,
That is, when rotating at an angular velocity ωz about a rotation axis parallel to the Z axis perpendicular to the paper surface, a Coriolis force proportional to the angular velocity acts on both outer vibrating legs. The direction is the longitudinal direction of the leg, and if a force is applied to the outer leg A53 at a certain moment, a force toward the leg tip is applied to the outer leg B55.
The direction of the force changes sinusoidally in synchronization with the vibration of the leg, and it inverts periodically. Since the two outer legs are separated from each other in parallel and the eccentric direction of the load mass is opposite to the outer leg axis, they form a couple force, which causes the tuning fork base portion 56 to sway and a small amount around the fulcrum 57. Causes rotational vibration. The middle leg C54 vibrates with an amplitude proportional to the Coriolis force by sensing the vibration of the tuning fork base portion 56 caused by the moment due to the Coriolis force. Middle leg C
The oscillating voltage extracted by the detection electrode provided at 54 is the angular velocity detection signal.

The acceleration sensor portion of the motion sensor vibrating body 50 is composed of a pair of parallel vibrating rods A and B and a load mass. Rod A61, rod B62, load mass 60 that are spring parts
(Consisting of the mass of a part of the material plate having a large area and the mass of the thick plated material applied to the surface thereof) Two support springs 63 (allowing a minute displacement in the X direction in the figure while supporting the load mass 60) Member), fixed portion B64 (load mass 60 is especially X
The part for supporting and fixing so as not to be largely displaced in the direction). Rod A61 and rod B62, both ends of which are fixed
Is excited by an oscillating circuit (for example, included in the angular velocity measuring circuit 14 in FIG. 1) in a vibrating form that is symmetric with respect to the symmetry axis of the motion sensor vibrating body 50.

Although the oscillation frequency is usually constant, when the acceleration Gx in the X direction shown in the figure acts on the load mass 60, the load mass 60 is subjected to a force proportional to its magnitude.
2 will be compressed or pulled in the longitudinal direction,
The oscillation frequency increases and decreases depending on the direction and magnitude of the force. Therefore, the acceleration in the X-axis direction can be obtained by comparing a separately provided reference frequency with the oscillation frequency and knowing the direction and amount of deviation of the oscillation frequency. An outer leg A5, which is a vibrating body for an angular velocity sensor, is provided without a reference frequency source.
3, there is a possibility that the oscillation frequency of B55 can be used. The greatest advantage of this motion sensor is that it is thin, and it can be placed in parallel with the maximum surface (display surface) of the wristwatch-shaped device, so
That is, x and ωz can be detected.

Next, various experiments conducted to find the optimum embodiment of the present invention will be described with reference to FIGS. 14 to 19. First, FIG. 14 is an explanatory diagram of an experimental situation of vibration response in body motion sensing. Human body 4 as subject
Was placed upright, one foot was placed on the fixed base 5, and the other leg was placed on the base of the vibrator 6 that vibrates in the vertical direction. The X, Y, and Z coordinate axes were set as shown with reference to the human body 4. A black circle attached to the human body 4 indicates a part to which the body sensing device 301 including an acceleration sensor is attached. Then, first, the response of the sensor attached to each part to the vibration in the X direction (vertical direction) was obtained. The vibration was a sine wave and swept from 5 to 1000 Hz at a constant acceleration of 4.9 m / s * s. The acceleration in the X direction is also indispensable data in order to obtain the calorie consumption in normal exercise such as walking.

FIG. 15 shows the Z of the acceleration sensor attached to each part of the body when one sole is vibrated under the above experimental conditions.
In the graph showing the experimental results of the directional vibration response, the horizontal axis represents the vibration frequency and the vertical axis represents the detected acceleration on a logarithmic scale. (A) is a crown, (b) is a chest pocket, (c) is a waist belt, (d) is an ankle, (e) is a wrist with an extended elbow,
(F) is the case where the elbows are bent and attached to the horizontal wrists. In each case (c) waist belt, (d) ankle, (e) elbow extension, (f) elbow bent wrist, the sensor is attached to the excitation side of the body and the center axis of the body (left and right). Both are shown on the same figure when they are attached to a symmetrical portion with respect to the plane (dividing the plane). Looking at these data, the difference between the response on the excitation side and the response on the symmetry side in FIG. Further, the vibration of the sole of the foot at about 20 Hz or higher has a low transmissibility, and stable detection can be expected because it is unlikely to be affected by the hardness of footwear or the ground when detecting walking or running. For these reasons, it is generally understood that wearing a sensor on the wrist is the best unless a particular body part measurement is intended.

Next, motion detection of a "finger-nose test", which is an example of a test performed to evaluate the degree of pathology of a hemiplegic patient due to cerebral infarction, is performed by using an acceleration sensor and an angular velocity sensor attached to the wrist. I went there. This requires the subject to repeatedly move his / her finger to his / her nose according to the metronome signal. FIG. 16 is a graph showing the measurement results of the motions of the right hand and the left hand in the finger-nose test as they are as detection waveforms. The horizontal axis represents time (seconds) and the vertical axis represents detection values.
(A), (b) shows the case of a healthy person A, (c), (d) shows the case of a healthy person B, (e), (f) shows the case of an upper left limb paralysis patient. As shown in these figures, the movements of the hands on either side of the two healthy persons have a smooth and constant rhythm in both acceleration and angular velocity, but in the case of hemiplegic patients, the tempo of movement is slow and the waveform is disturbed. , Especially in the case of the upper limbs on the paralyzed side, it is easy to judge the severity of the symptoms and the degree of improvement compared with past data, and the wrist-type device on the body side is extremely effective. I understand.

Next, an experiment was conducted in which several types of gait were identified by using the measurement results of acceleration and angular velocity in each direction, using a motion sensor correctly mounted on the wrist. The coordinate axes are as shown in FIG. 5, where the X axis is the vertical axis of the upright body, the Y axis is the front-back axis, and the Z axis is the horizontal left-right axis. 20 subjects
14 men and women in their 40s, the types of exercise are normal walking, fast walking,
There were five types of jogging, running, and arm restraint walking (arm assembly, pocket insertion, bag holding), and 20 or 50 steps were collectively collected and data was collected. The detected waveform is not processed as it is but processed and processed. One is when the peak of vibration (each peak value of the oscillating voltage waveform output from the measurement circuit according to walking) is detected, and the other is multipoint sampling of the waveform (waveform voltage during walking of 20 to 50 steps). 50 Hz
And the variance of the values at each point (the average of the square of the difference between each data and the average value) is calculated, and the logarithm thereof is further taken. The results are shown separately in FIGS. 17 to 19.

FIG. 17A is a diagram using the variance values of the X-axis and Y-axis acceleration waveforms, and FIG. 17B is a diagram using the peak values of the X-axis and Y-axis acceleration waveforms.

FIG. 18A shows the X-axis acceleration and the Z-axis angular velocity,
(B) is a diagram in which the Y-axis acceleration and the Z-axis angular velocity are taken and the peak value of the detected waveform is used for both.

FIG. 19A shows the X-axis acceleration and the Z-axis angular velocity,
(B) is a diagram using the variance values of both the Y-axis acceleration and the Z-axis angular velocity.

Looking at each figure, first, in FIG. 17 (b), FIG. 18 (a), and FIG. 18 (b) in which peak values are combined, the measurement points indicating various movements are mutually fixed and are considerably complicated. Since there is something that enters with, there is a possibility that the movement is not surely identified. On the other hand, in the example in which the variance values of the detected waveforms are combined, the acceleration values are shown in FIG.
Then, the motion separability is poor, but both figures in FIG. 19 in which the acceleration and the angular velocity are combined have relatively good separability. Above all, it is considered that the distinguishability is slightly better in FIG. 17A using the vertical acceleration Gx and the vertical-front-rear in-plane rotational angular velocity ωz.

From the above results, it is optimum for the motion discrimination when it is general to use the vertical acceleration Gx and the vertical-front-rear in-plane rotational angular velocity ωz as the motion sensitive directions in the body side device. 7 is also suitable for rehabilitation determination, and can be realized by a body-side device with good wearability and usability as shown in FIG. 3 using a thin motion sensor having a detection direction as shown in FIG. 4, for example. Is shown.

It goes without saying that the embodiment of the present invention is not limited to the above-described several forms. For example,
The direction of sensitivity to acceleration or angular velocity may be selected in different directions depending on the purpose of use of the device. The data transmitted / received between the device on the body side and the external device may be any data as long as necessary motion information is transmitted. In addition, the device on the body side may have functions such as a clock and a mobile phone. The clock function can also be used for timing control. Further, the mounting position of the device on the body side is not necessarily limited to the wrist, and may be any position on the arm, for example. In addition, the motion measurement result is not always processed and displayed as shown in FIG.
Alternatively, the detected waveform of the acceleration or the angular velocity may be displayed as it is, as in the respective figures. Further, the calculation processing of measured values may be performed in various cases other than those shown in the experiment, such as obtaining the average of absolute values. It is also conceivable to measure acceleration or angular velocity in other directions as auxiliary data to improve the accuracy of diagnosis and motion evaluation.

The use of the present apparatus is not limited to the collection and evaluation of exercise data, but may be used as a communication tool. The user communicates with the remote medical staff some types of requests such as "I want you to come soon" and their intentions, using the body movements that have been arranged in advance as a signal, and the movement detection waveform is displayed on the external device side. It can be analyzed to know its cueing action or intention.

FIG. 20 is a flow chart for explaining the operation of the motion judging circuit 17 (see FIG. 11) and the control circuit 25 of the terminal device 364 provided in the receiving terminal device 361. The motion determination circuit 17 and the control circuit 25 can be realized by, for example, one microcomputer. Step b1 to step b
2, the acceleration Gx and the angular velocity ωz are detected, and the pulse wave is received by the communication circuit 23 of the receiver 362. At step b3, the momentum Q is calculated based on the acceleration Gx and the angular velocity ωz.

In step b3, the pulse is calculated based on the pulse wave. In calculating the pulse U, the pulse U per minute can be obtained by counting the number of pulse pulses in a predetermined time W1, for example, 10 seconds by a counter and multiplying the counted value by N. Here, W1 · N = 1 minute.

At step b4, whether the amount of exercise is excessive, that is, the amount of exercise Q calculated at step b3.
Is less than a predetermined first value Q1 and is normal. If it is normal, the process moves from step b4 to step b5, and the pulse U is set to a predetermined value U1, U
It is determined whether it is within the range of 2 (that is, U2 ≦ U <U1). If the pulse is normal in step b5, the momentum Q and the pulse U are displayed on the display device 18 in step b6.
Is displayed on the liquid crystal panel, for example, and is printed on the recording paper by the recording device 21 such as a printer.

In step b5, when the pulse is excessive (that is, U1≤U) or when the pulse is excessive (that is, U <U2), the process moves to step b7, and the alarms by the display device 18 and the recording device 21 are issued. Is generated,
In addition, the emergency call is transmitted via a public telephone line or wirelessly, so that the medical institution or the welfare facility can receive the alarm signal and take appropriate action for the user.

When the momentum Q is excessive in step b4 (that is, Q1≤Q), it is determined in step b8 whether the pulse U is normal. When the pulse U is excessive in step b8 (that is, U1 ≦ U), an alarm signal is generated in step b7, and an emergency call is issued as described above. When it is determined in step b8 that the pulse U is normal (that is, U1 ≦
U), it is normal, and is displayed and recorded in step b6.

FIG. 21 is a waveform diagram for explaining the operation of the exercise determination circuit 17 and the control circuit 25 in the receiving terminal device 361 when the user is at rest. Sensor SR
The pulse wave signal obtained from the above corresponds to the peak 461, and the time interval W2 between these peaks 461 is a value corresponding to the pulse.

The vertical axis of FIG. 21 represents the intensity of the reflected light received by the light receiving element 316 (see FIG. 4), and the horizontal axis of FIG. 21 represents time. When the user is at rest, the pulse wave does not contain noise, and the pulse can be accurately calculated.

FIG. 22 is a diagram for explaining the arithmetic processing in a state where the user of the exercise determination circuit 17 and the control circuit 25 in the receiving terminal device 631 is exercising.
As shown in FIG. 22 (1), when the user is exercising, the acceleration sensor 11 derives the pulse number 463 by the body sensing device 301. A noise component 464 is mixed in the output waveform from the pulse sensor SR, as shown in FIG. The motion determination circuit 17 is in a state where the pulsed output 463 of the acceleration sensor 11 is obtained,
A noise removing unit for removing the noise component 464 included in the output of the pulse wave sensor SR is included. Thus the pulse wave sensor SR
By removing the noise component 464 included in the output of, the smooth pulse wave signal can be obtained even when the user is exercising, similar to the pulse wave output waveform at rest in FIG. This makes it possible to accurately calculate and obtain the pulse rate.

FIG. 23 is a block diagram showing the overall structure of a terminal device 401 in a physical condition according to another embodiment of the present invention. This embodiment is similar to the previous embodiment,
Corresponding parts are designated by the same reference numerals. It should be noted that, in this embodiment, the transmitting means 22 and the receiver 362 in the above-described embodiment of FIGS. 1 to 22 are omitted, the belt 309 is integrally attached to the entire structure, and the structure is Be miniaturized. The body sensing device 301 includes the necessary circuits and the display device 18 already described, and the communication circuit is not required, and the information on the condition of exercise and the evaluation thereof is displayed to improve the user's (wearer's) confidence. There is an advantage that can be confirmed. The obtained information can be later reproduced by the reproduction circuit 20 and stored in an external device for confirmation by a third party or the like. The control circuit 26 acts on each circuit in the body side device 1 to generate control signals P261 and P26.
2, P263, P264, P265 are generated, and the operation timing of each circuit and the cooperative operation between each circuit are adjusted.

An example of the embodiment of the body sensing device 301 of the present invention will be described. Its main part resembles a wristwatch and is worn on the wrist with a wristband.
At least the motion sensor and its operating circuit are built in the inside. The motion sensor measures accelerations and angular velocities in at least one respective direction relative to the characteristic direction of the motion measuring device. The direction of the measured acceleration Gx is a direction corresponding to the vertical direction of the body (that is, the vertical direction, which is the X axis) when the wearer stands and naturally lowers the arm toward the body. The output of the measured angular velocity ωz corresponds to the natural rotation direction of the wrist around the left-right axis (Z axis) of the body when the arm is shaken in parallel to the body side surface. The output of measured acceleration Gx and angular velocity ωz is processed variously,
It is used for identification of movement and calculation of energy consumption, and the final information thereof may be immediately observed by the user with a device on the wrist, and data before or during calculation is wirelessly transferred to a fixed computer, or, for example, The data for one day may be collectively transferred by wire, and the final information may be visualized or recorded by calculation on the fixed device side. The gyro sensor 12 can be configured to further detect the angular velocity ωx or ωy about the X axis or the Y axis.

The main feature of the present invention is not the configuration and function sharing of the body side device and the external device, but the algorithm for obtaining necessary information from the acceleration Gx and the angular velocity ωz. The outline will be described below, and will be further described in detail with reference to a flowchart showing the operation of the embodiment of the present invention.

For the acceleration Gx and the angular velocity ωz, the measured value is 1
Data sampled at 0 to 100 Hz (for example, 20 or 50 Hz) is used. Further, the sum of the absolute values of a predetermined number of sampled data or the sum of squares is used as the quantity indicating the magnitude of the acceleration Gx and the angular velocity ωz.

(1) Identification of physical activity: If the sampling data of the acceleration Gx or the angular velocity ωz shows a certain periodicity, it is judged to be walking or running, and if the periodicity is not recognized, it is judged to be another exercise. . Furthermore, walking and running can be distinguished by the remarkable difference in acceleration Gx.
These behaviors are further divided into several levels according to the amount indicating the magnitude of the acceleration Gx or the angular velocity ωz. When walking or running, the number of steps can be counted from the periodicity of the data.

(2) Energy consumption in a short period of time: According to a wide range of conventional studies, the energy consumption per unit weight (kg) for each form of behavior is the "coefficient by behavior" with reference to men aged 20 to 29. Is given as shown in Table 1 (according to the Japan Sports Association Sports Science Committee). Furthermore, correction factors are given as shown in Table 1 for subjects (users) of different ages and sexes (according to the 4th revised “Japanese nutritional requirements”). With these, energy consumption (including basal metabolism) can be calculated if the type of action being performed is determined.

[0080]

[Table 1]

[0081]

[Table 2]

(3) Energy consumption for a long time: Energy consumption for a short time that changes with time may be integrated. Alternatively, the energy consumption is calculated such that the motion sensor is operated intermittently instead of always, and the type and intensity of the behavior identified from the data during the operation lasts during the intermittent operation interval period of, for example, several minutes to several minutes. May be added up.

FIG. 24 shows a flow chart of the measurement operation of an example of the embodiment of the motion measuring apparatus of the present invention, and FIG. 25 shows the operation of the flow chart of the portion for performing energy calculation. In FIG. 1, in stage 1, data such as age, sex, weight of the user, and stride length according to the purpose are input. When the power source is turned on in the stage 2, the motion sensor and the measurement circuit start operating, and in the stage 3, a large number of Gx and ωz are measured at a predetermined timing. In stage 4, ωz is sampled at 20 Hz, for example, and frequency analysis (by Shorttime DFT) is performed to examine every frequency of 4 Hz or less every 0.1 Hz. The data is updated every 2 seconds. The frequency of walking is 0.5 to 1.8.
It is about Hz. In stage 5, the ratio between the average value a and the peak value b of the Gx data during the period is calculated.

At the stage 6, the periodicity is judged. When the periodicity is not recognized or when b / a <7, it is determined that there is no periodicity, the process moves to the branch point A in FIG. 2, and energy calculation of aperiodic motion is performed. When the periodicity is clear and b / a ≧ 7, it is identified that the user is walking or running on the stage 7, and at the stage 8, twice the peak frequency of ωz × 2 seconds is 2 times.
It is counted as the number of steps per second. (The value of b / a = 7 used as the boundary of the judgment is selected experimentally. In this case, it is judged that it is almost optimal in this case using the sum of absolute values for the data. Is the value). On stage 9, the number of steps is displayed (although it is a delay of 2 seconds) (for example, up to 24 hours),
In addition, the change (for example, every 15 minutes, or daily cumulative step count) is stored and saved for several days (data may be transferred to an external computer). Then, the process proceeds to the starting point B of the flow of energy calculation for running and walking.

In FIG. 25, it is determined that the action is something other than walking or running on stage 11, and on stage 12, the sum of squares (or the sum of absolute values) of the data for 2 seconds sampled at 20 Hz of Gx is calculated. Using the following equation, aperiodic behavior is classified and the behavior coefficient is determined as shown in the figure. That is, if Gx <2, desk work (sitting position), if 2 <Gx <6, light work (housework in standing position, etc.), 6
If <Gx <16, it is considered to be light exercise (sports), and if 16 <Gx, it is considered to be intense exercise (sports). A predetermined action coefficient is applied to each classified exercise. The numerical values representing the magnitudes of Gx and ωz used here are output voltage values of the measurement circuit used in the present embodiment, and are acceleration and angular velocity or their absolute values (or the sum of squares).
Note that there is a proportional relationship with, but it is not a value with those mechanical units.

In stage 13, the energy consumption is calculated by the following equation. Energy consumption [kcal] = coefficient by action [kcal / k
g / min] × weight [kg] × time [minutes] × correction coefficient and display and save the energy consumption value on stage 14, if necessary, wirelessly transfer the data (or data before calculation) to an external computer. Done. It may be appropriate to display the energy consumption value every 15 minutes or every day. When the data processing is completed, the process returns to the point C on the stage 4 in FIG. 1 from the end point C, and the next motion analysis is performed.

In the case of running / walking, from the point B, the stage 1
The classification is further performed in 5, and the action coefficient is determined for each. That is, using the sum of squares of Gx and ωz (or the sum of absolute values), walk 1 if Gx <8 and ωz <2.8, walk 2 if 2.8 <ωz <5, 5 <ωz <7.2 If it is, then walk 3; if 7.2 <ωz, then walk 4, if 8 <Gx <16, then run 1, if Gx <16, then run 1, and if 16 <Gx, then run 2. At stage 16, the energy consumption is calculated by the above-mentioned formula using the action coefficient. The flow from point D is sent to the stage 14 in FIG. 2 to display and hold data.

The validity and practicability of the concept of the present invention will be verified below with reference to FIGS. 26 to 34 showing the results of experiments using the algorithm of the present invention.

FIG. 26 is a graph showing the relationship between the sum of the absolute values of Gx and ωz of the motion of the subject P judged to have periodicity,
FIG. 27 is a graph showing the relationship between the sum of the absolute values of Gx and ωz in the motion determined to be aperiodic performed by the same subject. From now on, the strength of running and strong exercise is Gx
Then, it is understood that it is possible to classify by the intensity ωz of walking and other exercises.

FIG. 28 shows five subjects P, Q, R, S,
7 is a graph showing the relationship between the walking and running speeds and the sum of absolute values of ωz at T. The walking speed is well proportional to ωz, and it can be seen that the walking speed (strength) can be estimated by ωz. On the other hand, it is difficult to estimate the traveling speed at ωz.
The reason seems to be bending the elbows while driving.

FIG. 29 is a graph showing the relationship between the walking and running speeds of the same subject and the sum of the absolute values of Gx. It is understood that the traveling speed can be estimated by Gx.

FIG. 30 is a graph showing the distribution of the sum of the absolute values of Gx and ωz when the subject P walks or runs at a speed substantially specified. The data of the same speed are well organized, and it is shown that running can be sufficiently classified by the magnitude of Gx and walking can be sufficiently classified by the level of Gx and the magnitude of ωz.

FIG. 31 is a graph of similar data collected for the subject R, but in this case, ωz is fixed to a small value, and the walking speed cannot be classified. As a result of observing the behavior of the subject R, it was found that the sensor of the wrist device was changed due to the habit of directing the palm toward the front during walking, and the correct ωz was not measured. This measure can be corrected, for example, by mounting the motion measuring device around the wrist with a slight shift. There are other methods, which will be described later. On the other hand, there is no problem in classifying the traveling speed by Gx.

FIG. 32 shows the movement of the test subject P for 15 days.
It is a graph which shows the result identified for every minute. The present invention makes it possible to analyze the behavior of the user, and shows that it is highly useful.

FIG. 33 shows that the test subject P has 1
It is a graph which shows a change of energy consumption for every 5 minutes. This also shows that the present invention is useful for grasping the energy consumption pattern of the user or the total energy consumption.

FIG. 34 is a graph showing the fluctuation of the number of steps of the subject P over a period of 15 minutes. This figure can also be used as a material for diagnosis and life improvement together with other graphs and data, etc., by knowing the user's behavior pattern.

Needless to say, the embodiments of the present invention are not limited to those described above. For example, the directions of acceleration and angular velocity detection are both 1 in the above embodiment.
It is an axis (one direction), and this is the structure that can be realized by the motion measuring device at the lowest cost, but a biaxial or triaxial G or ω sensor may be incorporated. In this case, there is a merit that the information for analyzing the movement increases. Further, it is possible to calculate the absolute maximum and minimum values of the acceleration and the angular velocity regardless of the posture and the direction of the measuring device. This is
Even if the direction to be detected is deviated on the device due to the habit of the user, such as subject R, the maximum value is obtained from the angular velocity components in two directions (in the case of a wrist device, it is thought to occur by rotation of the arm along the body side) Can be calculated and obtained.

Further, the motion sensor 30 of the body sensing device 301 is mounted on a part other than the wrist (upper arm, chest, waist, legs, etc.),
The measurement values obtained from these can be used alone or in association with the measurement values at the wrist for a more advanced motion analysis. For example, by attaching an angular velocity sensor to the legs, it seems that the analysis of exercise on a bicycle will be easier.

In addition to the configuration in which the device to be worn on the arm is provided with all the functions, the function of the part to be worn on the arm is limited to the sensor-related functions as much as possible to reduce the size and weight of the device and reduce the addition of the device. Subsequent parts may be divided into devices attached to a belt or the like, mobile phones (having necessary functions), etc., and analysis results may be displayed on them, or data may be transferred from them to the host computer. . By doing so, it is possible to arrange the pacemaker to some extent.

Further, in addition to the above-mentioned calculation function, a detection function in a special case can be provided to contribute to the safety of the user. For example, if acceleration or angular velocity is hardly detected for a certain period of time, or if it operates at a frequency that is usually unthinkable, the user may have fainted, or if the user falls, the motion sensor temporarily shows an abnormal waveform ( For example a shocking waveform). In addition, when the user calls for urgent help, the device may be pounded or shaken to give a signal. In that case, it is desirable that the motion detection device emits an emergency signal by sound or wirelessly. In the case of pronunciation, use the speaker attached to the device, and in the case of wireless, transmit the electric wave directly to the external device, or send the rescue signal via the device with a wireless function such as your mobile phone. It is possible to make a call. When the device detects an abnormal value of acceleration or angular velocity, the rescue signal generating function is interrupted by the normal processing route as shown in FIGS.

FIG. 35 is a perspective view showing the structure of the angular velocity sensor 12. The angular velocity sensor 12 is a biaxial gyro sensor. As a basic configuration of this sensor unit, a piezoelectric ceramic (PZT) 472 having a detection electrode which also functions as a drive electrode divided into four is joined to one surface of a metal disk 471, and a spherical weight 473 is joined to the opposite surface. . The metal disk 471 vibrates perpendicularly to its surface by applying an electric signal to the drive electrode formed on the PZT 472.
When an angular velocity is applied in a direction perpendicular to the vibration, the generated Coriolis force deflects the weight 473 and distorts the disc 471. At this time, the angular velocity ωz, ωx of the two axes Z, X can be simultaneously detected by one sensor by the two pairs of detection electrodes facing each other among the four divided detection electrodes.

FIG. 36 is a block diagram showing the electrical construction of the angular velocity sensor 12. In this embodiment, the four-division electrodes are used for both driving and detection. As shown in FIG. 36, the four-divided electrodes used for driving are connected to a transmitter and a feedback amplification circuit section via a resistor. X1, X2 (Z1, Z
2) The electrodes are connected to the differential amplifier circuits 478 and 479 via the feedback amplifier circuits 474 to 477. The signals are full-wave rectified by the synchronous detection circuits 481 and 482, and the full-wave rectified signals are low-pass filters (LPF) 484 and 48.
A DC current is obtained by multiplying by 5, and is amplified by the DC current amplifier circuits 486 and 487 and sent to the external output terminal. Since the drive voltage is controlled by the feedback signal, the sensor can oscillate stably with a substantially constant current.
A with a drive voltage of 1.5 Vp-p generated by the drive circuit
The C voltage is applied to the drive electrode formed on the PZT disk and the PZT
The voltage is applied between the reference electrodes formed on the back surface of the disk so as to be electrically connected to the metal disk. Match the drive and detection mode nodes. When it was calculated by FEM simulation and a prototype was made based on the result, it was found that the node circle in the detection mode was around 0.55R, which was slightly different from the drive mode. For this reason, the soft support by the silicone rubber is used to reduce the influence of the deviation of the node circle.

The operating principle of the angular velocity sensor 12 is shown in FIG.
It is schematically shown in (a) and (b). FIG. 37A shows a state in which the sensor is vibrating in the Y-axis direction (vibration speed: Vy). In this state, when a rotational angular velocity (ωz) is given to the sensor about the Z-axis, The generated Coriolis force (Fx) acts on the spherical weight in the X-axis direction. As a result, the mass of the spherical weight generates a moment with respect to the disc (FIG. 37 (b)). The Coriolis force at this time is given by the following equation (2).

Fx = 2 m · Vy · ωz (2) m: Mass Vy: Similarly to the vibration velocity in the Y-axis direction, when the rotational angular velocity ωx is given around the X-axis, the generated Coriolis force (Fz) is , Acts on the spherical weight in the Z-axis direction. As a result, the mass of the spherical weight produces a moment on the disc. The Coriolis force at this time is also given by the following equation (3).

Fz = 2m · Vy · ωx (3) From the above, the rotational angular velocities ωx, ωz are known Vy, m,
It is determined by Fz and Fx. In practice, the rotational angular velocity acts on the spherical weight that is joined to the center of the metal disc, and is measured by detecting the change in the amount of strain of the disc with the PZT472. In the case of a vibration gyro, it is important to minimize the influence of external force such as acceleration. Therefore, the support structure is a soft support structure made of silicone adhesive or the like, and the external force of the high frequency component is prevented from being transmitted to the sensor unit as much as possible. The thickness of the metal disk 471 is increased, the weight of the weight 473 is made as light as possible, and the center of gravity is made as close as possible to the metal disk 471, so that
By increasing m, the vibration displacement at the time of resonance is increased to increase the detection force of the Coriolis force, and conversely, the influence of external force such as acceleration is reduced.

FIG. 38 is a diagram for explaining the charge distribution and distortion in the drive mode and the detection mode in the angular velocity sensor 12. When a force in the X-axis direction is applied to the spherical weight as shown in FIG. 38 (b), an electric charge is generated on the PZT depending on the operation direction of the spherical weight, and the generated electric charge amount can be detected. The direction and amount can be determined by. Actually, since the total charge generated in the drive mode and the detection mode is detected as the external output signal, the differential amplifier circuits 478 and 479 only receive the signal related to the Coriolis force, which is the necessary signal in the detection mode. Is detected and unnecessary signals are canceled. The same applies to the Z-axis as shown in the schematic diagram of FIG.

The present invention is capable of the following embodiments. (1) (a) a belt wrapped around a part of a human or animal body, and (b) a sensor arranged inside the belt, wherein the sensor emits light toward a living tissue of a human or animal. And a sensor having a light-receiving element that receives scattered light of living tissue of light from the light-emitting element and outputs a detection signal indicating the intensity of the scattered light, and (c) a belt, each light-receiving element being provided. Of the detection signals from the above, the determination means for determining and selecting the pulse wave, and (d) the transmission means provided on the belt for transmitting the detection signal of the pulse wave selected by the determination means by electromagnetic waves. Is a health condition detecting device.

(2) (a) A health condition detecting device,
A belt wound around a part of a human or animal body, and a plurality of sensors arranged at intervals in the circumferential direction of the belt, each sensor generating light toward a living tissue of a human or animal. A sensor having a light emitting element and a light receiving element that receives scattered light of living tissue of light from the light emitting element and outputs a detection signal indicating the intensity of scattered light, and a detection signal from each light receiving element provided on the belt Of the detection signals including the extraneous light and the determination means for determining and selecting the detection signal not including the extraneous light, the detection signal provided on the belt and not including the extraneous light, selected by the determination means, The sensor includes a red light emitting element that emits red light and an infrared light emitting element that emits infrared light as a light emitting element, and the light receiving element emits red light. Element and infrared light emitting element A health condition detecting device for commonly receiving scattered light by (b), a processing device (b), receiving means for receiving electromagnetic waves from the transmitting means, and red light and infrared light in response to the output of the receiving means. A calculation means for calculating the level of the detection signal of the light receiving element to calculate the oxygen saturation of the arterial blood, and the level of the detection signal of the light receiving element by red light or infrared light to calculate the pulse; And a processing unit including a display unit that displays the oxygen saturation of arterial blood and the pulse rate in response to the output.

According to the present invention, the light emitting elements 314 and 315 of the health condition detecting apparatus 1 generate red light and infrared light, respectively, and the scattered light is received by the single common light receiving element 316. The detected signal from the received light receiving element is transmitted as an electromagnetic wave and is received by the receiving unit 364 of the processing device 302, and the oxygen saturation of arterial blood can be calculated and obtained. Further, the pulse can be calculated using the detection signal of the light receiving element by the red light or the infrared light. In this way, the oxygen saturation of the arterial blood and the pulse are displayed on the display means 367,
The health of a person or animal can be monitored.

(3) (a) A health condition detecting device,
A belt wound around a part of a human or animal body, and a plurality of sensors arranged at intervals in the circumferential direction of the belt, each sensor generating light toward a living tissue of a human or animal. A sensor having a light emitting element and a light receiving element that receives scattered light of living tissue of light from the light emitting element and outputs a detection signal indicating the intensity of scattered light, and a detection signal from each light receiving element provided on the belt Of these, the detection signal including the external light, the determination means for determining and selecting the detection signal not including the external light, the detection signal provided on the belt, the detection signal not including the external light selected by the determination means, A health condition detection device including a transmission unit that transmits, by electromagnetic waves, identification data that identifies a sensor that outputs a detection signal that does not include extraneous light, and (b) a processing device that receives the electromagnetic waves from the transmission unit. Receiving And means, when the time interval at which the identification data is changed is below the predetermined time, a health monitoring device, characterized in that it comprises a processing device including a calculating means for outputting an alarm signal.

According to the present invention, the identification data is transmitted together with the detection signals from the plurality of sensors attached in the circumferential direction of the belt, and the processing device 2 changes the identification data at a predetermined time interval. If the change is less than that and the change is frequent, it is determined that the body movement of the person or the animal wearing the health detection device 1 is severe, and an alarm signal is generated. In this way, it is ensured that the presence or absence of an abnormal health condition of a person or animal is confirmed. The fact that the time interval at which the identification data changes is less than the predetermined time is equivalent to, for example, the number of changes of the identification data within a certain time exceeds the predetermined number of times.
When the identification data changes more than 10 times during ec, an alarm signal is output.

(4) The light emitting elements of the respective sensors include a red light emitting element that emits red light and an infrared light emitting element that emits infrared light, and the light receiving element is a red light emitting element. The scattered light from the infrared light emitting element is commonly received, and the calculating means calculates the oxygen saturation level of arterial blood by calculating the level of the detection signal of the light receiving element by the red light and the infrared light, and the red light or When the pulse level is calculated by calculating the level of the detection signal of the light receiving element by infrared light, and the oxygen saturation of the arterial blood is outside the predetermined first range or the pulse is outside the predetermined second range. Is also characterized by outputting an alarm signal.

In order to achieve the above object, the body motion sensing apparatus of the present invention has the following features.

(5) A motion sensor capable of measuring the acceleration in one direction and the rotational angular velocity about the axis of one tsu, and the acceleration of the one direction and the rotational angular velocity about the one axis are predetermined by the motion sensor. And a body side device to be mounted on a predetermined part of the body, including a measurement circuit means for measuring the period.
Kind of the physical exercise in the predetermined period by the combination of the arithmetic circuit means for performing a predetermined calculation on the acceleration output and the angular velocity output of the measuring circuit means and the combination of the acceleration output and the angular velocity output for which the predetermined calculation is performed. And a judgment circuit means for judging the strength, and a display means for displaying the kind and strength of the judged body movement or the evaluation result thereof.

Since the body motion sensing apparatus of the present invention detects acceleration in one direction and rotational angular velocity in one direction, and applies a predetermined calculation to them to judge or evaluate motion,
With a minimum of sensors and measuring circuits, the device on the body side can be downsized with a simple structure, the power supply can be afforded, and it has the basic effect of being a communication tool that is easy to handle.

(6) The motion sensor, the measuring circuit means, the arithmetic circuit means, the judging circuit means, and the display means are all incorporated in a body-side device to be mounted on a predetermined part of the body. That There is an effect that a user who can directly read the motion determination result and the evaluation result on the device on the body side can easily perform self-management of health.

(7) Of the motion sensor, the measurement circuit means, the arithmetic circuit means, the determination circuit means, and the display means, at least the motion sensor and the measurement circuit means have a predetermined body part. The body side device mounted on the part is built in, and other means is built in the external device not mounted on the body, and the body side device is provided with means for transmitting intermediate data, and the external device is A means for receiving intermediate data must be provided. Since the operation determination result and the evaluation result are displayed on the external device side by the data transmission from the body side device, the medical institution side can observe and manage the states of a plurality of users (patients). Further, there is an effect that a message from the user can be received and a corresponding process can be performed.

(8) The acceleration in one direction detected by the motion sensor is substantially vertical acceleration of the body, and the angular velocity in one direction detected by the motion sensor is substantially vertical and longitudinal. It must be an angular velocity for rotational motion in the plane containing it. By identifying the detection directions of the linear motion and the rotational motion of the body side device with respect to the body, it is possible to obtain necessary and sufficient information according to the purpose with a small number of detection elements. Further, since both particularly important walking and running motions and upper limb motions can be detected, it is possible to estimate energy consumption and evaluate rehabilitation, for example.

(9) The body-side device is a device to be worn on the arm, and the angular velocity sensor portion of the motion sensor is housed in a thin box-shaped container therein, and the body-side device is the widest. It is arranged substantially parallel to the surface, and the detection rotation direction of the angular velocity sensor unit is substantially parallel to the widest surface of the box-shaped container. Since the widest surface of the body-side device and the widest surface of the thin motion sensor and the detection rotation surface are made substantially parallel, there is an effect that a body-side device that is thin and has less feeling of wearing can be realized.

(10) The body-side device has a display device on its main surface, and the box-shaped container for the motion sensor accommodates the acceleration sensor unit and the angular velocity sensor unit having an integrated structure. Further, the container of the motion sensor is arranged in the body side device substantially parallel to the display device, and the acceleration detection direction of the motion sensor is a direction substantially parallel to the widest surface of the thin container. To be. Further, since the acceleration sensor is integrated with the angular velocity sensor and is overlapped with the display unit, there is an effect that the body side device which is further miniaturized and the display is easy to see can be realized.

(11) The predetermined calculation is to obtain the variance of at least one of the acceleration output and the angular velocity output. Obtaining the variance of the acceleration output or the angular velocity output has the effect of making the distinction of the type of motion more clear.

(12) The predetermined calculation is to obtain the variance of at least one of the acceleration output and the angular velocity output, and to take the logarithm thereof. Further, by taking the logarithm of the motion measurement value, there is an effect that it becomes clear that the type of motion is not discriminated.

In order to achieve the above object, the motion measuring device of the present invention has the following features. (13) A motion sensor for measuring an acceleration in at least one direction and an angular velocity in at least one direction of a predetermined part of the body is provided, and the motion sensor is operated at a predetermined timing, and the acceleration output of the motion sensor, the angular velocity An identification unit that classifies the type and intensity of a human body action using at least three types of information of output and at least one of the outputs, and an operation unit that performs a predetermined operation for each classified action; Outputting the calculation result of the calculation means. In the present invention, the acceleration and angular velocity of a predetermined part of the body measured using a motion sensor, the type and intensity of the human body action are classified using their periodicity, and a predetermined calculation is performed for each. , With a relatively simple structure and a small amount of motion sensor output, it is possible to reasonably analyze motion and estimate energy consumption with high accuracy, and is suitable for purposes such as health management, and to obtain a highly practical motion measuring device. You can

(14) The acceleration in the one direction is the vertical acceleration of a part of the body, and the angular velocity in the one direction is a rotational angular velocity about the left-right axis of the body.
Further, by adopting the vertical acceleration of a part of the body and the rotational angular velocity about the horizontal axis, it is possible to provide a motion measuring device capable of accurately identifying and classifying the type and intensity of actions by detecting a small number of motion elements. .

(15) A part of the body is a wrist, and the motion sensor, the motion sensor operating means, and the identifying means are mounted in a wristwatch-shaped device. Further, by using a wrist as a part of the body and making the device into a wristwatch type, it is possible to provide a small-sized motion measuring device with a small load in use.

(16) Further, the calculating means is mounted in the wristwatch type device. Further, by mounting the energy consumption calculating means in the wristwatch-type device, the user can freely read the state of the self-confidence action and check the result at any time, thereby increasing the convenience of the exercise measuring device. it can.

(17) The identifying means classifies the type of action into running or walking and other motions according to the presence or absence of the periodicity of at least one of the acceleration output and the angular velocity output, and further classifies the acceleration output or Based on an amount related to at least one magnitude of the angular velocity output,
Categorize the intensity of those movements. By using the presence / absence of multi-cycle periodicity of acceleration output or angular velocity output, running, walking, unexpected movements and their intensities were classified,
It is possible to provide a motion measuring device that uses accurate sensor output and that is accurately classified and that has high estimation accuracy of energy consumption.

(18) The running or walking motion is further classified into running and walking according to the amount related to the magnitude of the acceleration output, and the running is divided into a plurality according to the amount related to the magnitude of the acceleration output. And classifying the gait into a plurality of strengths according to an amount related to the magnitude of the angular velocity output. Since the classification of running and walking and the strength of running are classified according to the quantity related to the magnitude of the acceleration output, and the walking strength is classified according to the quantity related to the magnitude of the angular velocity output. It is possible to obtain high accuracy and high estimation accuracy of energy consumption.

(19) The sum of squares or the sum of absolute values of the acceleration output or the angular velocity output is used as the amount related to the magnitude of the acceleration output or the angular velocity output. Since the sum of squares or the sum of absolute values is used as the quantity related to the magnitude of the acceleration output or the angular velocity output, it is easy to create data, and the accuracy of classification of the motion measuring device and the estimation accuracy of high energy consumption are high. Can be obtained. Since a signal is generated for an abnormal value of the acceleration output or the angular velocity output, there is an effect that it can contribute to the rescue of the user.

[0130]

According to the present invention, it becomes possible for the first time to monitor the physical condition of humans and animals by combining exercise evaluation and biometric information evaluation. According to the present invention, for example, the outputs of the motion sensor and the pulse wave sensor are transmitted by radio waves or electromagnetic waves such as light. Therefore, according to such a configuration, the motion sensor and the pulse wave sensor are attached to the body. However, the movement is not restricted. Further, unlike the pedometer (registered trademark), the present invention can grasp the actual amount of exercise by the motion sensor and the pulse wave sensor, and can also detect the biological information at the same time. By detecting the amount of exercise and the biological information at the same time, it is possible to know whether the user is performing excessive exercise. For example, even if the amount of exercise is large, there is no problem if the pulse is within the normal range. By detecting the amount of exercise and biological information at the same time, it becomes possible to more accurately grasp abnormalities in the physical condition of the body, for example, if the pulse is outside the normal value range and the amount of exercise is small, a dangerous state And an alarm signal can be output. When such an alarm signal is generated, it is also possible to take appropriate care of the user. Further, the output of the motion sensor and the output of the pulse wave sensor obtained in this way, and further the information of the calculation result of each of these outputs is periodically transmitted to a medical institution such as a hospital, and an appropriate evaluation is performed at the medical institution. It is also possible.

[Brief description of drawings]

FIG. 1 is a diagram showing a simplified overall configuration of an embodiment of the present invention.

FIG. 2 is a block diagram showing an overall configuration of a body sensing device 301.

FIG. 3 is a block diagram showing a specific configuration of a body sensing device 301.

FIG. 4 is a simplified perspective view of a portion of body sensing device 301.

FIG. 5 shows the body sensing device 301 on the upper limb 3 of the person 307.
It is sectional drawing which shows the state mounted | worn with 08.

FIG. 6 shows red light emitted from the red light emitting element 314 in the upper limb 30.
The light-receiving element 16 when the light-receiving element 316 receives the scattered light from the living tissue of the upper limb 308 of
3 is an output waveform diagram of FIG.

FIG. 7 is a diagram showing a structure of a communication signal 371.

FIG. 8 is a waveform diagram for explaining a part of the operation of body sensing device 301 shown in FIG.

FIG. 9 is a flowchart for explaining the operation of the processing circuit 354.

FIG. 10 is a diagram showing a detection signal including external light and a detection signal 56 not including external light by the processing circuit 354.

FIG. 11 is a block diagram showing a specific configuration of a receiving terminal device 361.

12A and 12B show an example of a body-side device according to an embodiment of the present invention, FIG. 12A is a partial plan view, and FIG.

FIG. 13 is a plan view showing the internal structure of the motion sensor according to the embodiment of the present invention.

FIG. 14 is an explanatory diagram of an experimental situation of vibration response in body motion sensing.

FIG. 15 is a graph showing the experimental results of vibration response of each part of the body, where (a) is the crown, (b) is a chest pocket, (c) is a waist belt, (d) is an ankle, and (e) is (e). Wrists with extended elbows,
(F) is the case of a wrist with the elbow bent to be horizontal.

FIG. 16 is a graph showing measurement results of right-hand and left-hand movements in a finger-nose test, where (a) and (b) are healthy persons A, (c) and (d) are healthy persons B, (e), (F) shows the case of a patient with paralysis of the upper left limb.

FIG. 17 is a graph showing an experimental result obtained by performing various physical exercises and performing a calculation process on motion data in each direction of the wrist, and FIG. 17A is a graph showing variance values of acceleration waveforms on the X axis and the Y axis,
(B) is a figure using the peak values of the acceleration waveforms of the X-axis and the Y-axis.

FIG. 18 is a graph showing an experimental result in which various body movements are performed and the motion data in each direction of the wrist is arithmetically processed and combined, (a) is an X-axis acceleration and a Z-axis angular velocity, and (b) is a Y-axis. FIG. 6 is a diagram in which acceleration and Z-axis angular velocity are taken, and the peak value of the detected waveform is used for both.

FIG. 19 is a graph showing experimental results obtained by performing various physical exercises and performing a calculation process on motion data in each direction of the wrist, and (a) is an X-axis acceleration and a Z-axis angular velocity; FIG. 6 is a diagram in which variance values are used for both the axial acceleration and the Z-axis angular velocity.

FIG. 20 is a flowchart for explaining the operation of monitoring the physical condition by combining the evaluation of exercise and the evaluation of biological information by the processing device of the present invention.

FIG. 21 is a diagram showing output waveforms of acceleration and pulse waves when the user is at rest.

FIG. 22 is a diagram showing output waveforms of acceleration and pulse waves during exercise.

FIG. 23 is a block diagram showing an overall configuration of still another embodiment of the present invention.

FIG. 24 is a main part of a flowchart of the measurement operation of an example of the embodiment of the motion measuring device of the present invention.

FIG. 25 is a part for calculating energy consumption in the flowchart of the measurement operation of the embodiment of the motion measuring device of the present invention.

FIG. 26 is a graph showing the relationship between Gx and ωz of the periodic motion of the subject P.

FIG. 27 is a graph showing the relationship between Gx and ωz of the aperiodic behavior of subject P.

FIG. 28 is a graph showing the relationship between walking and running and ωz.

FIG. 29 is a graph showing the relationship between walking and running and Gx.

FIG. 30 is a graph showing the relationship between Gx and ωz when the subject P walks or runs.

FIG. 31 is a graph showing the relationship between Gx and ωz when the subject R walks and runs.

FIG. 32 is a graph showing the result of identifying the movement of the subject P every 15 minutes.

FIG. 33 is a graph showing fluctuations in energy consumption of subject P every 15 minutes.

FIG. 34 is a graph showing changes in the number of steps of the subject P every 15 minutes.

FIG. 35 is a perspective view showing a configuration of an angular velocity sensor 12.

FIG. 36 is a block diagram showing an electrical configuration of the angular velocity sensor 12.

FIG. 37 is a diagram schematically showing the operating principle of the angular velocity sensor 12.

FIG. 38 is a diagram for explaining charge distribution and distortion in the drive mode and the detection mode in the angular velocity sensor 12.

[Explanation of symbols]

4 human body 5 fixed base 6 shaker 11 Accelerometer 12 Angular velocity sensor 13 Acceleration measurement circuit 14 Angular velocity measurement circuit 15 Acceleration calculation circuit 16 Angular velocity calculation circuit 17 Motion determination circuit 18 Display 19 storage device 20 playback circuit 21 Recording device 22, 23 Communication circuit 24, 25, 26 control circuit 31 motion sensor 32 display 33 Communication module 34 batteries 35 Operation switch 36 armband 40 sensor container 41 Hermetic Terminal Pin 50 motion sensor vibrator 51 total base 52 Fixed part A 53 Outer leg A 54 Middle Leg B 55 Outer leg C 56 tuning fork base 57 fulcrum 58A, 58B. 58C leg load mass 60 load mass 61 stick A 62 stick B 63 Support spring 64 Fixed part B X, Z coordinate axes Acceleration in Gx X direction ωz Angular velocity in Z direction P, Q, R, S subjects 301 Body sensing device 302 processor 303 Health condition monitoring device 305 Transmission processing means 306 Transmission means 307 people 308 Upper limb 309 belt 314 Red light emitting element 315 Infrared light emitting device 316 Light receiving element 329 batteries 331,337 changeover switch 332 amplifier circuit 333 processing means 334 Light emitting element scheduling circuit 338 Red light sample and hold circuit 339 Infrared light sample and hold circuit 343,344 Low-pass filter 348,349 bandpass filter 354 processing circuit SR sensor

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G01P 15/00 G08C 19/00 V 15/10 A61B 5/02 321B G08C 19/00 321T G01P 15/00 A (72) Shigetomo Matsui 1-5-2 Minatojima Minami-cho, Chuo-ku, Kobe-shi, Hyogo Within the New Industry Creation Research Institute (72) Inventor Takaya Misumi 1-5 Minami-cho, Minami-cho, Chuo-ku, Kobe, Hyogo Prefecture No. 72 Inventor, Institute of New Industrial Creation (72) Inventor Takashi Katsurakawa 5-2 Minatojima Minami-cho, Chuo-ku, Kobe, Hyogo Prefecture No. 2 (72) Inventor, Norihiko Shiratori Miyoda, Kitasaku-gun, Nagano Prefecture 1173 Kusakoshi, Oji, Municipal 1394 Microstone Co., Ltd. (72) Inventor, Katoyo Ichikawa 1173, Kusakoshi 13, Miyota-cho, Kitasaku-gun, Nagano Prefecture 94 Microstone Co., Ltd. (72) Inventor Hideki Tamura 1173 Kusakoshi, Miyota-cho, Kitasaku-gun, Nagano 1394 Microstone Co., Ltd. F-term (reference) 2F073 AA40 AB01 BB01 BC02 BC04 CC01 CC08 FG01 GG01 GG04 GG07 GG08 GG09 2F105 AA10 BB17 CC01 CD13 4C017 AA10 AB05 AC20 AC26 BD01 BD06 CC01

Claims (7)

[Claims] 1. A motion sensor mounted on the body for detecting at least one of acceleration and angular velocity, a pulse wave sensor mounted on the body for detecting a pulse wave, and responsive to the outputs of the motion sensor and the pulse wave sensor, A device for monitoring a physical condition, comprising means for calculating and monitoring information representing the physical condition. 2. The calculation and monitoring means is integrally mounted on the motion sensor and the pulse wave sensor, and transmits the signal related to the outputs of the motion sensor and the pulse wave sensor, and receives the output of the transmission means. 2. The body condition monitoring apparatus according to claim 1, further comprising: a computing unit that computes information that represents the physical condition; and a display unit that responds to the output of the computing unit and that displays the information that represents the physical condition. . 3. The arithmetic and monitoring means is integrally attached to the motion sensor and the pulse wave sensor, and is integrally attached to the exercise sensor and the pulse wave sensor. The body condition monitoring apparatus according to claim 1, further comprising a display unit that displays information indicating a body condition in response to an output of the calculation unit. 4. The motion sensor has an acceleration sensor for detecting acceleration, and an angular velocity sensor for detecting angular velocity, and the computing means computes outputs of the acceleration sensor and the angular velocity sensor to obtain a momentum computing means. In response to the outputs of the pulse calculating means for calculating the pulse by calculating the output of the pulse wave sensor, and the output of the exercise amount calculating means and the pulse calculating means, the exercise amount is less than a predetermined first value Q1 and is normal. ,
And, when the pulse is more than a predetermined second value u1 and is excessive, or when it is less than a predetermined third value u2 that is less than the second value u1 and is insufficient, an alarm signal is output. 4. An apparatus for monitoring a physical condition according to claim 2, further comprising an alarm means. 5. The motion sensor has an acceleration sensor for detecting acceleration, and an angular velocity sensor for detecting angular velocity, and the calculating means calculates the output of the acceleration sensor and the angular velocity sensor to obtain a momentum calculating means. And a pulse calculating means for calculating the pulse by calculating the output of the pulse wave sensor, and an amount of exercise in response to the outputs of the exercise amount calculating means and the pulse calculating means, and the exercise amount is a predetermined value Q1 or more, which is excessive. ,
And, when the pulse is equal to or greater than the predetermined second value u1,
An apparatus for monitoring a physical condition according to claim 2 or 3, further comprising: an alarm unit that outputs an alarm signal. 6. The angular velocity sensor is attached to an upper limb or a lower limb of a human body, and is arranged around a Z axis perpendicular to a longitudinal direction X of the upper limb or the lower limb to be worn and a width direction Y of the upper limb or the lower limb to be worn. 6. The body condition monitoring apparatus according to claim 4, which is a gyro sensor that detects the angular velocity ωz of. 7. The pulse calculating means includes a noise removing means that removes noise included in the output of the pulse wave sensor in a state where the pulsed output of the acceleration sensor is obtained in response to the output of the acceleration sensor. The device for monitoring a physical condition according to any one of claims 4 to 6.