JP3417006B2 - Pitch maker - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pitch maker suitable for use in instructing a wearer of a running pitch.

[0002]

2. Description of the Related Art Various types of runnig pacemakers for instructing a wearer of a running pace have been developed.

For example, there is one in which the reference pulse rate of the user is set in advance, and the cycle of the pace sound is varied according to the deviation between this set value and the pulse of the user during running (Japanese Patent Publication No. 61-
953). In this device, when the pulse of the wearer exceeds the upper limit value, the pitch sound cycle is lengthened, and conversely, when the pulse falls below the lower limit value, the pace sound cycle is shortened.
Always adjust so that an appropriate load is applied to the wearer.

Further, there is also known a method in which a pulse is detected at every predetermined time after the start of running, and the set pace is changed when the detected result is out of a preset maximum / minimum pulse rate range. (JP-A-62-53677).

It has been developed that an alarm is issued when the pulse exceeds a predetermined value (Japanese Patent Publication No. Sho 60-21357), and one that informs the user of the pulse rate by a different alarm sound (Japanese Patent Laid-Open No. Sho 60 (1999)). 61-52852, JP-A-57-1422.
37), these can also be used as a pacemaker or an auxiliary device thereof.

[0006]

By the way, in the case of running, it is a general practice to warm up at the beginning to gradually raise the pitch, and then try to run at a desired constant pitch.

[0007] However, the conventional pitch maker has a drawback that it is difficult to run since the pitching sound of the wearer cannot catch up because the pitch sound is emitted at the set pace from the beginning.
In particular, when the vehicle suddenly starts running at the set pitch, the load is often excessive, which causes a problem in health management.

Further, the conventional pitch maker has a drawback in that the battery life is shortened because the pitch sound is always emitted, and furthermore, the pitch is simply indicated.
I was dissatisfied with the fact that I could not know the results of the practice of the wearer (for example, improvement of physical strength).

The present invention has been made in view of the above circumstances, and it is a first object of the present invention to provide a pacemaker capable of warming up at a comfortable and free pitch.
The purpose is.

A second object of the present invention is to provide a pitch maker capable of extending the battery life, and a third object is not only the pitch during running but also the result of running practice. There is a pitch maker that can announce.

[0011]

In order to solve the above problems, a pitch maker according to the present invention comprises a pulse measuring means for measuring the pulse of the wearer, a pulse value setting means for setting a lower limit value of the pulse, Pitch detection means for detecting the exercise pitch of the wearer, and when the pulse of the wearer exceeds the lower limit value set by the pulse value setting means, an initial instruction of the exercise pitch of the wearer detected by the pitch detection means An instruction pitch setting means for setting as a pitch, and a pitch notification means for notifying the wearer of the pitch at an interval corresponding to the setting of the initial instruction pitch by the instruction pitch setting means. To do.

Further, the pitch maker according to the present invention comprises a pulse measuring means for measuring the pulse of the wearer, a pulse value setting means for setting the lower limit value and the upper limit value of the pulse, and a pitch for detecting the exercise pitch of the wearer. Detection means, and an instruction pitch setting means for setting the exercise pitch of the wearer detected by the pitch detection means as an initial instruction pitch when the pulse of the wearer exceeds the lower limit value set by the pulse value setting means. After the initial instruction pitch is set, if the pulse measured by the pulse measurement means exceeds the upper limit value, the instruction pitch set in the instruction pitch setting means is lowered, and the pulse measurement means measures. When the pulse is below the lower limit value, the instruction pitch changing means for increasing the instruction pitch set in the instruction pitch setting means, and the initial instruction pitch are set. When the pitch notifying means for notifying the pitch wearer in the corresponding interval indicated pitch set in the instruction pitch configuration means, characterized by including the capital.

Further, the pitch maker according to the present invention is provided with a target pitch setting means for setting a target pitch, and the designated pitch changing means measures the pulse measured by the pulse measuring means after the initial designated pitch is set. Is lower than the upper limit value, the instruction pitch set in the instruction pitch setting means is decreased, and in other cases, the instruction pitch set in the instruction pitch setting means is made closer to the target pitch. It is preferable to change.

Further, the pitch maker according to the present invention compares the instructed pitch set by the pitch setting means with the exercise pitch of the wearer detected by the pitch detecting means, and when they match for a predetermined time. It is preferable to provide notification state control means for weakening the driving energy of the notification means or stopping the operation of the notification means.

[0015]

[0016]

Further, the pitch maker according to the present invention monitors the pulse detected by the pulse detecting means, and when the pulse rise amount exceeds a predetermined value within a certain period, the pitch detecting means detects the pulse at that time. If you specify a pitch lower than the pitch, and if the pulse falling amount within a certain period exceeds a predetermined value,
A pitch instructing means for instructing a pitch higher than the detected pitch of the pitch detecting means at that time, and only while the pitch instructing means is instructing the pitch, notify the wearer of the pitch at intervals corresponding to the instructed pitch. Pitch notification means,
And preferably.

[0018]

[0019]

Further, in the pitch maker according to the present invention, the pitch storage means for storing the pitch detected by the pitch detection means at a predetermined interval and the pitch transition display for displaying the transition of the pitch stored in the pitch storage means. Means and are preferably provided.

Further, the pitch maker according to the present invention calculates the average value of the pitches detected by the pitch detection means and stores the average pitch storage means, and the transition of the average pitch stored in the average pitch storage means. And an average pitch transition display means for displaying.

[0022]

In the pitch maker according to the present invention, the pulse measuring means and the pitch detecting means detect the amount of transmitted light or reflected light obtained when the living tissue of the wearer is irradiated with light of different wavelengths. The light quantity detecting means and the identifying means for comparing the amplitudes of the frequency components included in the detection signal of the light quantity detecting means with respect to the light of each wavelength and detecting the pulse and pitch of the wearer from the relationship of the ratio of the amplitudes. It is preferable that

Further, in the pitch maker according to the present invention, it is preferable that at least one of the pulse measuring means and the pitch detecting means is configured so that power is supplied only during measurement.

Further, in the pitch maker according to the present invention, it is preferable that the power feeding is pulse current feeding.

[0026]

The typical operation of the present invention having the above structure is as follows.

When the pulse of the runner exceeds the lower limit value, the pitch of the runner at that time is set by the instructed pitch setting means, and pitch notification is made in accordance with this.
4).

Further, when the pulse of the runner deviates from the upper limit value and the lower limit value, the instructed pitch changing means changes the pitch instruction so as to return the pulse to the original value (claims 2 to 4). Furthermore, if the instructed pitch and the runner's pitch match for a predetermined time,
The pitch state or the like is stopped by the notification state control means (claim 4).

By the first and second pitch instructing means, the pitch sound is emitted only when the pulse of the runner is out of the upper and lower limits, and the pulse is guided so as to fall within the range of the upper and lower limits ( Claims 5-8).

The pitches and average pitches of runners are stored,
And the transition is displayed (Claims 10-13).

[0031]

【Example】

A: First Embodiment (1) Configuration of Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 3 is a perspective view showing the external appearance of the first embodiment of the present invention, in which 1 is the apparatus main body. The device body 1 is attached to a user (runner) arm 3 by a belt 2.

Next, FIG. 1 is a block diagram showing the electrical construction of this embodiment. In the figure, 11 and 12 are photocoupler type photosensors having wavelengths of 660 nm and 940 nm. These sensors 11 and 12 are arranged in a predetermined cap C as shown in FIG. As shown in FIG. 3, the cap C is adapted to be attached to the tip portion of the runner's finger, and in the attached state, the sensors 11 and 12 are arranged along the width direction of the finger. The output signals of the sensors 11 and 12 are sent via the lead wire 5 to the main body 1
It is designed to be input to the circuit inside. Note that, as shown in FIG. 2A, the sensors 11 and 12 may be mounted in the cap so that they are arranged in the longitudinal direction of the finger.

The light output from the light emitting portions of the sensors 11 and 12 is reflected by blood vessels and tissues and then received by the light receiving portion thereof, and the light receiving signals are respectively signals Sa and Sb as shown in FIG. Fast Fourier transform circuit 1
Input to 3. The fast Fourier transform circuit 13 uses the signal S
This is a circuit that obtains a frequency spectrum by performing Fourier transform on a and Sb. Reference numeral 14 denotes a comparison circuit, which temporarily stores the frequency spectrum output from the fast Fourier transform circuit 13 and compares the magnitudes of typical baselines. Judgment circuit 1
Reference numeral 5 detects the pulse and pitch of the runner based on the comparison result of the comparison circuit 14, and outputs a pulse detection signal BS and a pitch detection signal PS indicating the values thereof, respectively. In this case, the fast Fourier transform circuit 13, the comparison circuit 14, and the determination circuit 15 described above constitute a pulse / pitch detection unit 16. The detection principle of the pulse / pitch detection unit 16 will be described later.

Next, reference numeral 20 denotes an upper / lower limit value setting section for setting the upper limit value UL and the lower limit value LL of the pulse, and the selection switch S
The setting of the upper limit value UL and the setting of the lower limit value LL are switched by the operation of. When the up switch U is operated, the upper and lower limit value setting unit 20 raises the set value according to the operation, and when the down switch D is operated, the upper and lower limit value setting unit 20 decreases the set value according to the operation. . The upper limit value UL and the lower limit value LL set by the upper and lower limit value setting unit 20 are supplied to the upper and lower limit comparing unit 21, respectively.

The upper / lower limit comparison unit 21 detects whether the pulse indicated by the pulse detection signal BS supplied from the determination circuit 15 exceeds the lower limit value LL or exceeds the upper limit value UL,
The signal SS indicating that state is output to the pitch control signal generator 22.

The pitch control signal generator 22 includes a decision circuit 1
5 is a circuit that creates a pitch control signal PCS based on the pitch detection signal PS supplied from the No. 5 and the signal SS supplied from the upper and lower limit comparison unit 21, and has the configuration shown in FIG. 4, for example.

In FIG. 4, reference numeral 30 denotes an initial pitch setting section which, when it detects that the pulse of the runner first exceeds the lower limit value LL based on the signal SS, outputs the signal Sa to the control section 3.
It is a circuit for outputting to 1. When the signal Sa is supplied, the control unit 31 outputs the pitch of the runner indicated by the pitch detection signal PS at that time as the pitch control signal PCS. In addition, the control unit 31 receives the signal S after the signal Sa is input.
By checking S, it is monitored whether or not the pulse of the runner falls below the lower limit value LL. If it falls below, the pitch is controlled so that the pitch rises at a predetermined rate until the pulse of the runner rises above the lower limit value LL again. Adjust the signal PCS. Similarly, the control unit 31 checks the signal SS to monitor whether or not the pulse of the runner exceeds the upper limit value UL. If the pulse of the runner exceeds the upper limit value UL, the control unit 31 keeps a predetermined rate until the pulse of the runner falls below the upper limit value UL. The pitch control signal PCS is adjusted so that the pitch falls.

Next, a stop control unit 32 compares the pitch control signal PCS with the pitch detection signal PS, and when both match for a predetermined time (or almost equal).
Is a circuit that stops the output of the pitch control signal PCS and outputs the pitch control signal PCS again when a difference occurs between the two. However, when changing the pitch (up or down), the control unit 31 stops the stop control unit 3.
The pitch control signal PCS is continuously output regardless of the operation of No. 2.

The configuration and processing contents of the pitch control signal generator 22 have been described above. However, other circuit configurations may be used as long as the same processing can be performed, or software may be used.

Next, the sound emitting section 25 shown in FIG. 1 is composed of, for example, a piezoelectric buzzer and its drive circuit, and has a pitch corresponding to the pitch control signal PCS.
...... ”is emitted. Also, the pitch control signal PC
When S is not supplied, sound emission is stopped.

Reference numeral 26 is a display section including a liquid crystal display or the like, and as shown in FIG. 3, displays the pitch indicated by the pitch control signal PCS by a numerical value and blinks the mark M according to the pitch. Further, the pulse is displayed numerically based on the pulse detection signal BS supplied from the determination circuit 15. Further, when the display mode is changed by the selection switch S shown in FIG. 1, the display unit 26 displays the upper limit value UL and the lower limit value LL set in the upper and lower limit value setting unit 20. (Not shown).

(2) Pulse and Pitch Detection Principles Next, the pulse and pitch detection principles in this embodiment will be described.

Principle of pulse detection by light First, the principle of pulse detection by light will be described.

When a thin film is irradiated with light, the ratio of incident light to transmitted light is reduced by an amount proportional to the substance concentration and the optical path length. This is known as "Lambert-Beer's law".

According to this law, the concentration of the substance can be obtained as follows.

First, as shown in FIG. 5A, the substance M
Is C, the minute optical path length is ΔL, and the amount of incident light is Ii
If n and the absorption coefficient of the substance M are k, the following equation holds.

[0048]

[Equation 1]

Here, as shown in FIG. 5B, when the optical path length is increased by a factor of 5, the relation of the equation 1 changes as follows.

[0050]

[Equation 2]

This is, for example, the incident light quantity Ii of FIG.
If n is 10 and the amount of transmitted light is 9,
In the case of FIG. 5B, the transmitted light amount becomes 5.9 with respect to the incident light amount 10, that is, Iout / Iin = 0.9.
It will be ⁵ .

Therefore, the relationship between the amount of incident light and the amount of transmitted light with respect to an arbitrary distance L is obtained by integrating Equation 1.

[0053]

[Equation 3]

It becomes When this number 3 is transformed,

[0055]

[Equation 4]

As can be seen from this, the incident light quantity I
If in, the extinction coefficient k, and the optical path length L are constant, the change in the concentration of the substance M can be measured by measuring the transmitted light amount Iout.

Further, even if the reflected light reflected by the substance M is measured instead of the transmitted light amount, the concentration change can be measured by the same principle as in the above case. Measuring this change in concentration is to measure the pulsation of blood, ie to measure the pulse.

The above is the basic principle of pulse detection by light. When a living body is moving, its body movement affects blood pulsation. Therefore, in order to detect the pulse accurately, You have to do the process described.

Pulse detection and pitch detection from a moving living body Now, FIG. 6 is a diagram showing the distribution of absorbance when light is externally applied to the blood vessel portion of a human, where I2 is the light absorption component by the tissue and I3 is the light absorption component. The light absorption component due to venous blood, I4 is the light absorption component due to arterial blood.

In this case, the tissue absorption component I2 is constant because the tissue concentration does not change. Further, the light absorption component I3 due to venous blood is also constant. This is because the vein has no pulsation and no change in concentration. FIG. 7 is a diagram showing this, in which the pulsation of blood pumped from the heart gradually disappears and disappears completely in the vein.

Since the light absorption component I4 due to arterial blood has a concentration change corresponding to the pulse, the light absorption changes. Therefore, the pulse can be measured by irradiating the blood vessel with light and measuring the change in the amount of transmitted light or reflected light. The measurement principle described above is also described in, for example, Japanese Patent Publication No. 2-44534.

By the way, when a person is exercising, the influence of the body movement affects the veins, the flow of venous blood becomes dynamic, and the absorbance changes. Similarly, since the tissue vibrates due to the shaking of the limbs, the absorbance of this portion also fluctuates.
Therefore, during exercise, it is difficult to accurately detect the pulse even if the amount of transmitted light or reflected light of the light applied to the blood vessel is simply detected.

Therefore, this point will be considered below. First, the pulse wave detection by light can be mathematically expressed as follows at rest.

[0064]

[Equation 5]

Here, K motion is the absorptivity of arterial blood, K static is the absorptivity of venous blood, arterial direct current component is the direct current component (non-pulsating component) of arterial blood, and venous level is the flow rate of venous blood. , As mentioned above, there is no pulsating component in the vein). Further, the pulse amplitude · F (θ _M ) is an AC component of arterial blood, in other words, it is a periodic function having an AC-like fluctuation amplitude (pulse amplitude) of hemoglobin amount and a frequency (θ _M ).

Next, during exercise, a pulsating component due to body movement is superimposed on both arteries and veins. Therefore, if this component is added to Equation 5, the received light amount during exercise can be mathematically expressed. . Here, taking the case of swinging the arm (swing of the arm during running) as an example, the following equation is obtained.

[0067]

[Equation 6]

Here, (arm amplitude · F ′ (θs)) is a periodic function having the amplitude (arm amplitude) and frequency (θs) of the AC component of the amount of hemoglobin which varies depending on the stroke of arm swing.

By the way, the curves C1 and C2 in FIG.
Absorption spectra of hemoglobin in arterial blood (hemoglobin sufficiently bound to oxygen: hereinafter referred to as oxygen hemoglobin) and hemoglobin that is consumed by the body and returns to the heart via veins (hereinafter referred to as reduced hemoglobin) that are sent from the heart. As shown, the absorbance changes depending on the wavelength. That is, oxygen hemoglobin strongly absorbs infrared light (peak value 940 nm), and reduced hemoglobin strongly absorbs red light (peak value 660 nm). That is, the absorption coefficient of arterial blood (K
Dynamics) and venous blood absorptivity (K static) differ depending on the wavelength, and are 660 nm and 9 used in this example.
At the wavelength of 40 nm, there is the magnitude relationship shown in FIG. In consideration of this point, the amount of received light represented by Formula 6 is mathematically expressed as follows for two different wavelengths (660 nm and 940 nm).

[0070]

[Equation 7]

[0071]

[Equation 8]

Subscript 66 in the above equations 7 and 8
0 and 940 represent wavelengths, respectively, and the subscripted terms and coefficients represent values at that wavelength.

By the way, the received light amount shown by the equations 7 and 8 is
It is a periodic signal that fluctuates on the time axis, and is hereinafter referred to as a light reception signal. Now, when each of these received light signals is subjected to Fourier transform, the amplitude value of the frequency component included in each signal is detected. For example, as shown in FIG. 9A, at a wavelength of 660 nm, K motion 660 / pulse amplitude, that is, the amplitude in the pulsation frequency component of arterial blood is detected at the frequency θ _M , and at the frequency θ s. (K motion 660 + K static 660) The arm amplitude, that is, the amplitude at the frequency of the arm stroke superimposed on both the vein and the artery is detected. Then, as shown in FIG.
Even at the wavelength of 940 nm, the respective amplitudes are detected at the same frequency.

Here, the magnitude relationship of the absorbance of arterial blood and venous blood with respect to light of each wavelength is as shown in FIG.

[0075]

[Equation 9]

There is a relationship. Therefore, for example, as shown in FIG. 11, the amplitude of the frequency components f ₁ and f ₂ is the wavelength 6
When the wavelength is 60 nm, they are a and b, respectively, and the wavelength is 940.
When the values are c and d when nm, (a / b) <
If (c / d) or (c / a)> (d / b) holds, it is understood that f ₁ is the frequency of the artery and f ₂ is the frequency of the arm swing. Therefore, if f1 is converted per minute, the pulse can be obtained. Further, in general, the swing of the arm is 1/2 of the pitch (the number of steps), so the pitch can be obtained by doubling f2 and converting it per minute.

The above is the principle of detecting the pulse and pitch during exercise in the present embodiment.

Here, an example of the experimental results is shown in FIG.
(A) and (b) of this figure are the frequency spectra of the detection signal when measurement is performed using wavelengths of 660 nm and 940 nm, respectively. In addition, this experiment was performed by attaching an electrocardiograph so that the pulse frequency could be specified in advance, and the measurement subject shook his arm with a constant stroke in accordance with the metronome (as when running) Was shaken). Further, S1 shown in these figures is the basic frequency of the stroke (body motion), S2 is the second harmonic of the stroke, and M1 is the basic frequency of the blood pulsation (that is, pulse frequency).

Here, by comparing the ratio of M1 and S1 with respect to (a) and (b) of FIG. 12, it can be identified from the above relational expression that M1 is a pulse. Then, the pulse value at this time coincided with the pulse value measured by the electrocardiograph.

(3) At the beginning of the operation of the first embodiment, the up switch U, the down switch D and the selection switch S are operated to set the upper limit value UL and the lower limit value LL. This setting is performed with reference to, for example, the well-known Carbone equation. According to this Carbone's formula, the pulse rate used as a guide during exercise can be obtained as follows.

[0081]

[Equation 10]

The strength of exercise in the equation 10 is 0 to 100.
It may be appropriately set in the range of%, but for example, about 80% results in a fairly tight exercise, and even about 50% results in a slightly tight exercise.

As an example, if a person aged 30 years old and having a pulse rate of 70 at rest sets the upper limit value UL at 80% exercise amount and the lower limit value LL at 60% exercise amount, the upper limit value U
L is 166 times / minute, and the lower limit value LL is 142 times / minute.
The broken line shown in FIG. 13 indicates the upper limit value UL and the lower limit value LL in this example.

Next, the runner wears the cap shown in FIG. 2 on his / her finger and starts running from time t ₁ shown in FIG. 13, for example. As a result, the signals Sa and Sb output from the sensors 11 and 12 are signals in which the body motion component is superimposed on the blood pulse wave. These signals Sa and Sb are Fourier transformed by the fast Fourier circuit 13 and then compared by the comparison circuit 14 with respect to the amplitude of a typical frequency component.

The comparison circuit 14 compares the sizes of S1 and M1 of FIG. 12A with S1 and M1 of FIG. 12B, for example. This comparison result is supplied to the determination circuit 15,
As described above, for the amplitudes a, b, c, d of the frequency components f ₁ and f ₂ shown in FIG. 11, (a / b) <(c / d) or (c / a)> (d / b) If true, it is determined that f ₁ is the frequency of the artery and f ₂ is the frequency of the arm swing. Then, the determination circuit 15 detects the pulse and the pitch of the runner based on the determination result, and outputs the pulse detection signal BS and the pitch detection signal PS indicating the values thereof, respectively.

Then, the upper and lower limit comparing section 21 compares the pulse detection signal BS with the upper limit value UL and the lower limit value LL and outputs a signal SS corresponding to the comparison result. In this case, at the beginning of running, as shown in FIG. 13, the pulse of the runner has a lower limit value L.
L has not been reached. Therefore, the initial pitch setting unit 30 shown in FIG. 4 does not output the signal Sa, and the control unit 31 does not set the initial pitch. Therefore, the pitch control signal PC
S is not generated, and the sound emitting unit 25 does not generate pitch sound.

Next, when the runner warms up and the pitch gradually rises, the amount of exercise increases and the pulse rises accordingly. And in FIG.
When the time t ₂ shown by is reached, the pulse indicated by the pulse detection signal BS exceeds the lower limit value LL. As a result, the upper and lower limit comparison value 21
The signal SS output by means that "the lower limit is exceeded", and the initial pitch setting unit 30 shown in FIG. 4 outputs the signal Sa. When the signal Sa is output, the control unit 31 shown in FIG.
Takes in the pitch of the runner indicated by the pitch detection signal PS,
This is set as the initial pitch, and the pitch control signal PCS corresponding to this pitch is output. As a result, the sound emitting unit 25 causes the pitch corresponding to the pitch control signal PCS (in this case, the pitch of the current runner,
In the example shown in FIG. 3, a pitch sound is generated at 160 steps / minute.
That is, when the pulse of the runner exceeds the lower limit value LL, the pitch sound is generated for the first time, and the sound emission interval becomes equal to the pitch of the runner at that time.

Then, when the pitch sound generated by the sound emitting section 25 and the pitch of the runner match and the matching time elapses for a predetermined period, the stop control section 32 shown in FIG. To output the pitch control signal P
The CS is stopped and the pitch sound of the sound emitting unit 25 is stopped. Therefore, the pitch sound is emitted from the sound emitting unit 25 from time t ₂ to time T ₁ . The pitch sound is cut off after the lapse of time T ₁ because the pitch of a runner who has entered a steady running state is generally stable, and unless there is some reason, it is almost constant even if there is no instruction such as pitch sound. Since the vehicle travels on the pitch, unnecessary pitch instructions are not given and power consumption is saved.

Next, when the pulse of the runner running at the initial pitch rises as shown in FIG. 13 and exceeds the upper limit value UL at time t ₃ , the output signal SS of the upper / lower limit comparison unit 21 becomes This indicates that "the upper limit has been exceeded", and the control unit 31
Adjusts the pitch control signal PCS so that the pitch falls at a predetermined rate until the pulse of the runner falls below the upper limit value UL.

When changing the pitch, the control section 31 outputs the pitch control signal PCS again, and the sound emitting section 25
To output a pitch sound. This is because it is necessary for the runner to recognize the pitch change.

Then, at time t ₄ , the pulse of the runner falls below the upper limit value UL, and the control unit 31 controls the pitch control signal PC.
Stop adjusting for S. Therefore, the set pitch of the control unit 31 is the pitch (145 steps / step) immediately before the time t _4.
Min) fixed. When the changed pitch and the pitch of the runner match for a predetermined time, the stop control unit 32
Then, the pitch control signal PCS is stopped again.

Next, for reasons such as physical condition changes, for example,
At time t ₅ , if the pitch of the runner fluctuates, this is detected by the stop control unit 32 (see FIG. 4). As a result, the stop control unit 32 informs the control unit 31 of the pitch control signal P.
Output CS. As a result, the sound emitting unit 25 emits the pitch sound again, and the runner changes his or her running pitch in accordance with the pitch sound. Then, the pitch of the runner and the control unit 3
When the set pitch of No. 1 matches for a predetermined time, the stop control unit 3
The generation of the pitch control signal PCS is stopped by 2.

When the pulse of the runner gradually decreases and falls below the lower limit value LL at time t ₆ , for example, the output signal SS of the upper / lower limit comparison unit 21 becomes equal to or lower than the lower limit value, and the control unit 31 causes the runner to run. Pitch control signal P so that the pitch rises at a predetermined rate until the pulse of the pulse exceeds the lower limit value LL.
Adjust CS. Further, the control unit 31 outputs the pitch control signal PCS again and causes the sound emitting unit 25 to output the pitch sound when the pitch is changed. In this case, there is a slight time difference from the time t ₆ when the pulse falls below the lower limit value LL to the time t ₇ when the adjustment of the pitch control signal PCS is started. This is because the control unit 31 monitors the signal SS at every predetermined cycle. This is because the monitoring is performed, and in this example, the timing t _{7 at} which the monitoring is performed is delayed from the time t ₆ by a minute timing. However, since a sufficiently fast cycle is set for the pitch instruction to the runner, there is no practical problem.

The pitch sound generated at the time t ₇ is stopped after the elapse of the time T ₄ , which is due to the control of the stop posterior part 32 as in the case described above.

B: Second embodiment Next, a second embodiment of the present invention will be described.

FIG. 14 is a block diagram showing the structure of the second embodiment. This embodiment is different from the above-described first embodiment in that the pitch storage processing unit 40 is provided and the display unit 26 displays based on the stored contents of the pitch storage processing unit 40. Is.

When the start switch (not shown) is pressed, the pitch storage processing section 40 samples and stores the value of the pitch detection signal PS at predetermined intervals (for example, every 2 to 5 minutes). This storage process is continued until the stop switch (not shown) is pressed. The start and stop instructions may be given by a combination operation of the up switch U, the down switch D, and the selection switch S, for example.

When the start switch is pressed again, the pitch storage processing unit 40 starts the storage processing again, but stores the pitch in an area different from the previous storage area. As described above, the storage processing unit 40 has the storage area 4 for individually storing the pitches during several tens of runs.
0a-1 to 40a-n are provided.

Further, when the stop switch is pressed, the storage processing unit 40 calculates the average of the running pitches at that time, and stores the average value storage areas 40b-1 to 40b corresponding to the storage areas 40a-1 to 40a-n. -Remember in n.
The storage areas 40a-1 to 40a-n, 40b-
When 1 to 40b-n are full, new data is stored in the area storing the oldest data.

Further, the storage processing section 40 is adapted to set and store the target pitch by a combined operation of the up switch U, the down switch D and the selection switch S. The target pitch in this case is stored in the storage area 40c shown in the figure.

Next, the display operation of this embodiment having the above-mentioned structure will be described. The operation other than the display operation is the same as in the first embodiment described above.

First, the first display mode or the second display mode is selected by a predetermined combination operation of the up switch U, the down switch D, and the selection switch S.

When the first display mode is selected, among the storage areas 40a-1 to 40a-n, the storage areas from several times before to this time are selected, and the pitch data in the storage area is read. . The pitch data thus read is displayed on the display unit 26 as shown in FIG. That is, the pitch in the latest several runs is displayed as a transition with respect to the target value.

The runner can know the improvement of his / her running ability and physical strength (cardiopulmonary function) by looking at the above display. In addition, since it is possible to know the pitch change during running, it is possible to understand the characteristics of running.

Next, when the second display mode is selected, the average pitch data in the storage areas 40b-1 to 40b-n is read out and the display section 26 displays as shown in FIG. That is, the transition of the average pitch of running from the past to the present is displayed. In this case, the date may be input at the time of pitch recording, and the average pitch data in the storage areas 40b-1 to 40b-n may be displayed as a transition with respect to the date.

By looking at the display shown in FIG. 16, it is possible to know the transition of the pitch over a longer span than the display shown in FIG. 15, and it is possible to know the results of running practice and the degree of improvement in physical strength.

As shown in FIG. 14, the storage processing unit 4
An interface 45 for transferring the data in 0 to an external device (computer or the like) may be provided. By doing this, the large screen of the external device can be displayed as shown in FIGS.
Can be displayed. In addition, various analyzes and processings can be performed on the pitch data.

In particular, when it is necessary to manage the running ability and physical strength of a large number of athletes, it is effective to input the data of each athlete to an external device for processing.

C: Third Embodiment Next, a third embodiment of the present invention will be described. The difference between this embodiment and the first and second embodiments described above is that the pitch control signal PCS is automatically adjusted so as to change to the target pitch unless the pulse of the runner exceeds the upper limit value UL.

That is, as shown in FIG. 17, a target pitch setting section 50 for setting the target pitch RP by a predetermined combination operation of the up switch U, the down switch D, and the selection switch S is provided, and the pitch signal generating section 22 is The control is performed according to the target pitch RP.

FIG. 18 is a diagram corresponding to FIG. 13 of the first embodiment, and the pitch control in the third embodiment will be described with reference to this diagram.

First, it is assumed that 165 steps / minute is set as the target pitch RP, and that the runner is stably running at the initial pitch (160 steps / minute) from time t ₂ . In this case, the pulse rate of the runner, because between the upper limit UL and the lower limit diagram LL, the pitch signal generating section 22 (see FIG. 17) is, at time t ₂ 'a predetermined time has elapsed from the time t _2, the predetermined The pitch control signal PCS is adjusted so as to approach the target pitch of 165 steps / minute at the rate. When the pulse of the runner exceeds the upper limit UL (time t ₃ ~t _4), the pitch at a predetermined rate to adjust the pitch control signal PCS to decrease.

When the pulse of the runner falls after the pitch is lowered, the target pitch of 165 steps /
The pitch control signal PCS is adjusted so as to approach the minute (time t _{4 to} t ₆ ).

On the other hand, from time t _{6 to} t ₈ , the pulse of the runner falls below the lower limit value LL, but the runner is stably running at the target pitch RP, so no pitch change is performed. As described above, the pitch control signal PCS is adjusted so as to guide the target pitch RP unless the runner is under control.

When the pulse of the runner falls below the lower limit value LL, the target pitch RP may be automatically updated and increased as shown by the broken line in FIG.

Further, T _{1 to} T ₅ respectively indicate periods during which pitch sound is being emitted, and the control thereof is the same as in the first embodiment.

D: Fourth Embodiment Next, a fourth embodiment of the present invention will be described. In the fourth embodiment, instead of the initial pitch setting unit 30, the control unit 31, and the stop control unit 32 (see FIG. 4) in the first embodiment,
An initial pitch instruction section 33 and a control section 34 shown in FIG. 19 are provided. The other parts have the same structure as the first embodiment.

Based on the signal SS, the control unit 34 shown in the figure monitors whether or not the pulse of the runner exceeds the upper limit value UL,
If the upper limit value UL is exceeded, the pitch of the runner is recognized from the pitch detection signal PS at that time, and the pitch control signal PCS instructing a pitch lower than this is output. The pitch control signal PCS in this case is output while the pulse of the runner exceeds the upper limit value UL. Further, the control unit 34 monitors, based on the signal SS, whether or not the pulse of the runner falls below the lower limit value LL, and if it falls below the lower limit value LL, the pitch detection signal P at that time is detected.
The pitch of the runner is recognized from S, and a pitch control signal PCS instructing a pitch higher than this is output. The pitch control signal PCS in this case is output while the pulse of the runner is lower than the lower limit value LL.

Further, the initial pitch instructing section 33 outputs the signal SS
Based on the above, the time when the pulse of the runner first exceeds the lower limit value LL is detected, the pitch of the runner is detected from the pitch detection signal PS at this time, and the pitch control signal FPCS indicating the same pitch is detected for a predetermined time. Output.

When the pitch control signal PCS or FPCS is output, the sound emitting section 25 performs pitch sound emission at intervals corresponding to these.

According to the above-described structure, for example, at time t ₂ in FIG. 18, when the pulse of the runner exceeds the lower limit value LL, pitch sound is emitted for a predetermined time according to the pitch of the runner at that time. Thereafter, between times t ₃ ~t ₄ that the pulse of the runner is greater than the upper limit UL, the pitch of the runners (e.g., the detected pitch at time t ₃₎ sound is made at a lower pitch, also the runner Pulse is lower limit L
Between times t ₆ ~t ₈ is below L, and the pitch of the runners (e.g., the pitch detected at time t ₆₎ sound is made at a higher pitch. In addition, the pulse of the runner is the lower limit value L
When it is between L and the upper limit value UL, pitch sound emission is not performed even if the instructed pitch deviates from the pitch of the runner.

In this embodiment, as can be seen from the above, there is an advantage that the vehicle can run at any pitch while the pulse is from the lower limit value LL to the upper limit value UL. This is because, for example, when the exercise intensity is different even at the same pitch, such as uphill and downhill, it is difficult for the runner to keep running at the same pitch, so when running at a free pitch that matches the inclination. Very suitable. If, on the uphill slope, the sound is emitted at a constant pitch, and if the pulse does not exceed the upper limit value UL, the instructed pitch does not decrease, the pace instruction for the runner becomes very difficult.

Further, in the present embodiment, when the pulse deviates from the lower limit value LL and the upper limit value UL, the pitch is instructed to return to the proper pulse, so that proper exercise management can be performed without difficulty. it can.

The initial pitch instructing section 33 shown in FIG.
May be omitted, and the initial pitch may not be emitted.

E: Fifth Embodiment FIG. 20 is a block diagram showing the structure of the essential parts of the fifth embodiment of the present invention. In this embodiment, the pulse change detector 35 is added to the above-mentioned fourth embodiment.

The pulse change detection unit 35 shown in FIG. 20 monitors the pulse detection signal BS, and when the degree of rise of the pulse of the runner exceeds a predetermined value, detects the pitch of the runner from the pitch detection signal PS at that time. Then, the pitch control signal PCS ′ indicating a pitch lower than this is output. This output is continued until the degree of pulse rise falls below a predetermined value.

Further, in the same manner as described above, the pulse detecting section 35, when the degree of the pulse decrease of the runner exceeds a predetermined value,
The pitch of the runner is detected from the pitch detection signal PS at that time, and a pitch control signal PCS 'indicating a pitch higher than this is detected.
Is output. This output is continued until the degree of pulse drop falls below a predetermined value.

Further, the sound emitting section 25 uses the pitch control signal PC
When S, PCS 'and FPCS are output, pitch sound is emitted at intervals corresponding to these.

According to the above-mentioned structure, for example, when the pulse continues to rise even when running at a constant pitch, for example, between times t _{2 and} t ₃ shown in FIG. The lowered pitch is indicated.

Further, according to this embodiment, when the rise and fall of the pulse exceed the predetermined change amount, the upper limit value UL
Alternatively, even if the lower limit value LL is not reached, a pitch that causes the current running pitch to be corrected and changes to an appropriate pulse is instructed, so that fluctuations in the pulse are suppressed and appropriate exercise amount management is performed.

Also, according to this embodiment, if the fluctuation of the pulse is not so large and the pitch is between the upper limit value UL and the lower limit value LL, the pitch is not emitted, so that the runner is free to pitch. Can drive.

The initial pitch instructing section 33 shown in FIG.
May be omitted and the initial pitch may not be emitted.

F: Modification Although the above-mentioned embodiment has described running,
Of course, it can be applied not only to running but also to any exercise involving pitch. Furthermore, the following modifications are possible.

(1) Modification of Optical Sensor and Output Signal Processing In the embodiment, the sensor is attached to the fingertip to detect the fingertip pulse wave. However, the pulse wave of the blood vessel at the base of the finger is detected. May be configured to be detected. The same effect can be obtained by detecting the radial artery or detecting the pulse wave of the blood vessel of the ear. Further, the detection site can be various other sites as long as it can irradiate the arteries and veins with light.

The mounting method of the sensor is not limited to the mounting with the cap shown in the embodiment (see FIG. 2). For example, the sensor may be attached using a glove-shaped one or a band-shaped one, and may further be attached to the measurement site using an adhesive tape or the like.

The frequency analysis method of the sensor signal is not limited to the fast Fourier transform used in the embodiment. For example, the discrete Fourier transform or the maximum entropy method may be used. The point is that any analysis method that can extract the frequency component contained in the sensor signal and compare the amplitudes thereof may be used.

In the embodiment, 660 is used as the measuring light.
Although wavelengths of nm and 940 nm are used, the wavelength is not limited to this. It suffices to select a frequency at which the absorbance differs between oxygen hemoglobin and reduced hemoglobin.

(2) Other Examples of Pulse and Pitch Detection For pulse detection, for example, expansion and contraction of blood vessels associated with blood pulsating flow may be detected by piezoelectric conversion, and electrodes provided in contact with the human body may be provided to detect heartbeats. The electric potential may be detected.

Further, in place of the pitch detecting method shown in each of the embodiments, an acceleration sensor is provided in the main body 1 (see FIG. 4) to detect an acceleration change caused by swinging of a runner's arm, and thereby pitch measurement is performed. May be performed. In addition,
If the acceleration sensor is attached not only to the arm but also to the runner's body, the pitch can be measured from the change in the acceleration.

By the way, in the pulse detection by the fast Fourier transform used in the above-mentioned first to third embodiments, the accurate pulse without the body motion component could be detected, but if the error is within the allowable range, You may use the simple pulse detection which ignored the body motion component. That is, the pulse may be directly detected from the optical sensor, the piezoelectric sensor, or the cardiac potential detector (for example, the pulse detection shown in Japanese Patent Publication No. 61-953).

(3) Modification of pitch notification to runner In the embodiment, the sound emission is stopped when the pitch of the runner matches the instructed pitch. However, instead of this,
The sound may be weakened. For example, the pitch signal generation unit 22 (see FIGS. 1, 14, and 17) outputs the weak sound instruction signal Sb, and the sound emitting unit 25 weakens the pitch sound when the weak sound instruction signal Sb is supplied.

The pitch is notified to the runner by using sound in the embodiment, but instead of this, for example, light or tactile notification may be used. For example, in the case of light, LE
You may blink D etc. according to an instruction | indication pitch.

In the case of tactile sensation, the main body 1 is energized when electricity is applied.
A shape memory alloy projecting from the lower surface of the shape memory alloy is provided, and the shape memory alloy is energized at a timing matched with an instruction pitch. Alternatively, although a vibration alarm for rotating the eccentric load to transmit the vibration to the human body is well known, the vibration alarm may be provided integrally with or separately from the main body 1 and energized in accordance with the instruction pitch. Further, as shown in FIG. 21, a part of the inner surface of the lower surface of the main body 1 may be made to have a thickness of about 70 μm to form a concave portion, and the piezo element PZT may be attached thereto. When an alternating current having an appropriate frequency is applied to this piezo element, the piezo element PZT vibrates and the vibration is transmitted to the human body. Therefore, tactile pitch notification can be performed by applying the alternating current at a timing that matches the instructed pitch. The piezo element PZ
It is preferable that the thickness of T is 100 μm and the diameter thereof is about 80% of the diameter of the recess.

(4) Modified Example of Setting Upper and Lower Limits Upper limit UL and lower limit LL in each of the above-mentioned embodiments
Has input the pulse value directly, but instead of this, it may be configured to input the "exercise intensity" in the equation of Carbone. That is, when a runner inputs a guideline of exercise intensity, such as 80%, 50%, etc., according to the physical condition of the day and the purpose of exercise, the upper and lower limit setting unit 20 uses the formula of Carbone shown in the equation 10. Based on this, the upper limit value UL and the lower limit value LL are calculated and set. However, in this case, the age of the runner and the pulse rate at rest are input to the upper / lower limit setting unit 20 in advance.

(5) In the embodiment in which the function shown in the embodiment is diverted or omitted, the sound emission is stopped when the pitch of the runner coincides with the instructed pitch. Naturally, it can be applied to pitch notification by light or touch. Furthermore, the pitch notification stop processing shown in the present embodiment may be added to a conventional pacemaker having a pitch creating means for notifying the pitch immediately after the start of running.

In each of the above-described embodiments, the pitch sound may always be produced when the battery consumption is not a problem.

The storage of the pitch and the average pitch and the display thereof in the third embodiment can of course be applied to other embodiments.

(6) Configuration for reducing power consumption The entire circuit shown in FIGS. 1, 14 and 17 or a specific portion of the circuit may be configured to be driven only during measurement. That is, the current of a power supply (for example, a battery) is controlled to be turned on / off, and a switch is turned on at the time of measurement to supply power to the entire circuit or a specific portion.

Further, the structure may be such that the intermittent driving is performed periodically so that the measurement is performed at a preset timing, and the power is supplied to the entire circuit or a specific portion only at the measurement timing. . In this case, the measurement timing may be set using a timer function of a hardware circuit, or may be set by programming in a microcomputer.

Further, in either of the case of the switch or the intermittent drive, it is possible to drive by the pulse current when the power is supplied. By doing so, the effect of significantly reducing the current consumption of the circuit can be obtained.

(7) Measurement of exercise intensity When a person exercises, the amount of oxygen consumed by the body increases, so
The absorption characteristics of reduced hemoglobin change. That is, the absorption spectrum of venous blood approaches the curve C2 as the exercise intensity increases, even if the curve is initially close to the curve C1 shown in FIG.

On the other hand, the degree of oxygen binding of hemoglobin in arterial blood (that is, the degree of oxygen saturation of arterial blood) is constant regardless of exercise intensity. Therefore, as shown in the above-mentioned embodiment,
When the measurement is performed using lights having different wavelengths, the exercise intensity of the living body can be obtained by comparing the measurement results. Moreover, in the case of each example, since the light of 940 nm and the light of 660 nm are used, a large change in exercise intensity can be extracted. A specific example of detecting the exercise intensity is as follows.

The amplitude with respect to the frequency θs is calculated as the wavelength 66
By appropriately sampling 0 nm or 940 nm light, the state of the change in the sampled value reflects the exercise intensity, so that the change in exercise intensity during exercise of the living body can be detected.

For light having a wavelength of 660 nm or 940 nm, if the amplitude ratio of the frequencies θs and θ _M is compared, θ _M
Since the amplitude of does not change depending on the exercise intensity, this ratio is a value that reflects the exercise intensity. Therefore, the change in the exercise intensity of the living body can be detected by the change in the value of this ratio. Also, if the relationship between this ratio and exercise intensity is investigated and stored in advance, by referring to this stored content,
Exercise intensity can be measured.

Light having a wavelength near 805 nm is used, and the amount of received light is used as a reference value. That is, at this wavelength, as shown in FIG. 6, the absorbances of oxygen hemoglobin and reduced hemoglobin do not change, so that the light reception signal of light of this wavelength is used as a reference value and the frequencies in the light reception signals of light of other wavelengths are used. By comparing with the amplitude of θs, the exercise intensity can be measured from the change in the ratio.

When the exercise intensity is measured by the above method, not only the pitch but also the exercise intensity may be displayed and further stored as data together with the pitch (for example, the storage processing unit of the second embodiment). 40).

Since the exercise intensity affects not only the pitch but also the stride, it is extremely meaningful in exercise management to be able to directly grasp the exercise intensity.

In this case, a warning may be issued when the exercise intensity becomes too high.

[0159]

As described above, according to the present invention, when the pulse of the runner exceeds the lower limit value, the pitch is announced by the pitch of the runner at that time, so that the pitch can be freely adjusted. The warm-up can be done with, and the runner will not feel any discomfort in the pitch sound. , If the pitch instructed by the device and the pitch of the runner match for a predetermined time, stop pitch notification or
Since it is driven by weak energy, low power consumption can be achieved and battery life can be extended.

Further, since the pitch during running and the average of the pitches are stored and displayed, it is possible to know the result of running practice and the improvement of physical strength.

[Brief description of drawings]

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

FIG. 2 is a schematic configuration diagram showing a mounted state of a sensor in the embodiment.

FIG. 3 is a perspective view showing the outer appearance of the embodiment.

FIG. 4 is a block diagram showing a configuration example of a pitch signal generator 22 in the same embodiment.

FIG. 5 is a diagram for explaining Lambert-Beer's law.

FIG. 6 is a diagram showing a distribution of absorbance when a blood vessel part of a human body is irradiated with light.

FIG. 7 is a diagram showing changes in blood pulsation from the left ventricle to the vena cava.

FIG. 8 is a diagram showing the absorbance characteristics of oxygen hemoglobin and reduced hemoglobin.

FIG. 9 is a diagram showing amplitudes of blood pulsation and body motion detected when measuring light having two wavelengths of 660 nm and 940 nm is used.

FIG. 10 is a diagram showing the relationship between the absorptance of arterial blood and venous blood when measurement light having two wavelengths of 660 nm and 940 nm is used.

FIG. 11 is a diagram showing which of two frequency components detected when measuring light having two wavelengths of 660 nm and 940 nm is used, which is blood pulsation and which is body movement.

FIG. 12 is a graph showing a frequency spectrum of a detection signal when measurement is performed using measurement light of 660 nm and 940 nm.

FIG. 13 is a timing chart for explaining the operation of the first embodiment.

FIG. 14 is a block diagram showing a configuration of a second embodiment.

FIG. 15 is an explanatory diagram showing a display example of the second embodiment.

FIG. 16 is an explanatory diagram showing a display example of the second embodiment.

FIG. 17 is a block diagram showing a configuration of a third embodiment.

FIG. 18 is a timing chart for explaining the operation of the third embodiment.

FIG. 19 is a block diagram showing a configuration of a main part of the fourth embodiment.

FIG. 20 is a block diagram showing a configuration of a main part of a fifth embodiment.

FIG. 21 is a cross-sectional view showing an installation state when a piezo element is used as pitch notification means.

[Explanation of symbols]

11, 12 Photosensor (pulse measuring means; pitch detecting means; light amount detecting means) 13 Fast Fourier transform circuit (pulse measuring means; pitch detecting means; identifying means) 14 Comparison circuit (pulse measuring means; pitch detecting means; identifying means) 15 determination circuit (pulse measuring means; pitch detecting means; identifying means) 16 pulse / pitch detecting section (pulse measuring means; pitch detecting means; identifying means) 20 upper and lower limit setting section (pulse value setting means) 21 upper and lower limit comparing section ( Instruction pitch setting means) 22 Pitch control signal generating section (instruction pitch setting means; instruction pitch changing means) 25 Sound emitting section (pitch notification means) 26 Display section (pitch transition display means) 30 Initial pitch setting section (instruction pitch setting means) ) 31 control section (instruction pitch setting means; instruction pitch changing means) 32 stop control section (notification state control means) 33 initial pitch finger Section (initial pitch instructing means) 34 control section (first pitch instructing means, second pitch instructing means) 35 pulse change detecting section (third pitch instructing means) 40 storage processing section (pitch storage means; average pitch storage) Means) 50 target pitch setting section (target pitch setting means; average pitch transition display means) S selection switch (pulse value setting means) U up switch (pulse value setting means) D down switch (pulse value setting means)

Continuation of front page (56) Reference JP 62-53677 (JP, A) JP 55-12452 (JP, A) JP 54-72135 (JP, A) JP 57-64062 (JP , A) JP 54-27469 (JP, A) JP 60-92733 (JP, A) JP 60-246734 (JP, A) JP 5-168602 (JP, A) JP 57-142237 (JP, A) JP 61-52852 (JP, A) Actual development 60-129957 (JP, U) Actual development 1-76655 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61B 5/0245

Claims (10)

(57) [Claims] 1. A pulse measuring means for measuring the pulse of the wearer, a pulse value setting means for setting a lower limit value of the pulse, a pitch detecting means for detecting the exercise pitch of the wearer, and the pulse of the wearer is When the lower limit value set by the pulse value setting means is exceeded, an instruction pitch setting means for setting the exercise pitch of the wearer detected by the pitch detecting means as an initial instruction pitch, and the instruction pitch setting means sets the initial instruction pitch. A pitch maker, which, when set, notifies the wearer of the pitch at intervals corresponding thereto, and a pitch maker. 2. A pulse measuring means for measuring the pulse of the wearer, a pulse value setting means for setting a lower limit value and an upper limit value of the pulse, a pitch detecting means for detecting the exercise pitch of the wearer, When the pulse exceeds the lower limit value set by the pulse value setting means, an instruction pitch setting means for setting the exercise pitch of the wearer detected by the pitch detection means as an initial instruction pitch, and the initial instruction pitch is set. After that, if the pulse measured by the pulse measuring means exceeds the upper limit value, the instruction pitch set in the instruction pitch setting means is decreased, and the pulse measured by the pulse measuring means falls below the lower limit value. In this case, the instruction pitch changing means for increasing the instruction pitch set in the instruction pitch setting means, and the instruction pitch setting from the time when the initial instruction pitch is set. Pitch notification means for notifying the pitch wearer at an interval corresponding to the instruction pitch is set in the unit, the pitch maker, characterized by comprising the city. 3. The target pitch setting means for setting a target pitch according to claim 2, wherein the instruction pitch changing means sets the upper limit of the pulse measured by the pulse measuring means after the initial instruction pitch is set. When the value exceeds the value, the instruction pitch set by the instruction pitch setting means is decreased, and in other cases, the instruction pitch set by the instruction pitch setting means is changed so as to approach the target pitch. Pitch maker characterized by. 4. The instruction pitch set by the pitch setting means and the exercise pitch of the wearer detected by the pitch detection means are compared with each other, and both of them match for a predetermined time. In this case, the pitch maker is provided with a notification state control means for weakening the drive energy of the notification means or stopping the operation of the notification means. 5. The pulse detected by the pulse detection means according to claim 2 or 3, and when the pulse rise amount within a certain period exceeds a predetermined value, the pitch detected by the pitch detection means at that time point. Indicates a lower pitch,
Furthermore, when the pulse drop amount within a certain period exceeds a predetermined value, the pitch instructing means for instructing a pitch higher than the detected pitch of the pitch detecting means at that time point, and the pitch instructing means for instructing the pitch. A pitch maker, comprising: a pitch notification means for notifying the wearer of the pitch at intervals corresponding to the instructed pitch. 6. The pitch storage means according to claim 1, wherein the pitch detection means stores the pitches detected by the pitch detection means at predetermined intervals, and a pitch for displaying the transition of the pitch stored in the pitch storage means. A pitch maker, characterized by comprising transition display means. 7. The average pitch storage means for calculating and storing an average value of the pitches detected by the pitch detection means according to claim 1, and an average pitch stored in the average pitch storage means. An average pitch transition display means for displaying a transition, and a pitch maker. 8. The amount of transmitted light or reflected light obtained when the pulse measuring means and the pitch detecting means irradiate the biological tissue of the wearer with light of different wavelengths according to any one of claims 1 to 5. And a light amount detecting means for detecting the amplitude of the frequency component included in the detection signal of the light amount detecting means, the light of each wavelength is compared, and the pulse and pitch of the wearer are detected from the relationship of the amplitude ratio. A pitch maker characterized by being constituted by an identification means. 9. The method according to claim 1, wherein at least one of the pulse measuring unit and the pitch detecting unit is configured to be supplied with power only during measurement. Pitch maker. 10. The pitch maker according to claim 9, wherein the power feeding is pulse current feeding.