JP3468390B2 - Display method of measurement result in portable pulse wave measuring device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of displaying a measurement result in a portable pulse wave measuring device for displaying a pulse rate measured while being carried on a display device. More specifically, the present invention relates to a graphic display method of temporal changes such as a pulse rate in a dot display area formed on a display device of a portable pulse wave measuring device.

[0002]

2. Description of the Related Art A portable pulse wave measuring device capable of measuring pulse wave information such as a pulse rate even when worn on an arm and carried, has a built-in timekeeping function to improve the pulse rate and lap time during a marathon. Can also be used as a device capable of displaying. In this type of portable pulse wave measuring device, conventionally, the current pulse rate and the elapsed time from the start are generally segment-displayed on the liquid crystal display device.

[0003]

However, since the runner can only look into the display from time to time, it is sufficient to display the current pulse rate in segments as in the conventional portable pulse wave measuring device. There is a problem that it cannot be grasped.

Here, the present inventor provides a dot display area in the display device so that the user can grasp the physical condition in detail and easily by only looking at the display from time to time. It is proposed to display it graphically. In addition, the inventor of the present application aims to make it easier for the runner to visually recognize the physical condition, etc. even if the display device is limited in size because it is portable and only a small dot display area can be configured. It is a proposal.

That is, an object of the present invention is that even if the size of the dot display area that can be formed in the display device is limited because it is portable, the user can feel the physical condition in more detail from the displayed measurement result, It is to realize a method of displaying a measurement result in a portable pulse wave measuring device that can be more easily known.

[0006]

In order to solve such a problem, the present invention measures the pulse rate while being carried and displays the temporal change of the measured pulse rate in a dot display area of a display device. In a portable pulse wave measuring device capable of graphic display, as a method of displaying the measurement result, after starting time measurement based on an external operation,
The first until the measured pulse rate reaches a specified range
The display mode of the temporal change of the pulse rate in the dot display area is switched between the measurement period of 1 and the second measurement period after the pulse rate reaches the predetermined specified range.

In the present invention, in the first measurement period, a bar graph extending every hour corresponding to the absolute value of the measured pulse rate is displayed, and in the second measurement period, the measured pulse rate and the specified range are set. It is preferable to perform display by a bar graph extending in the positive direction or the negative direction at each time corresponding to the difference from a predetermined reference pulse rate in the above.

In the present invention, even after the external operation for stopping the time measurement is performed, the pulse rate measurement is continued for a predetermined period, and the pulse rate measured during this time change with time. Is preferably displayed graphically in the dot display area in a display form different from the display form in the dot display area in the second measurement period. In this case,
It is preferable that the pulse rate immediately after or immediately before the external operation for stopping the time measurement is displayed at the same time as the current pulse rate within the predetermined period.

In the present invention, the display in the dot display area is a graphic display of the temporal change of the pulse rate based on an external operation and a graphic display of the temporal change of the pitch during running obtained based on the measurement result of the acceleration sensor. In the portable pulse wave measuring device configured to switch between the above and the other, the display form in the dot display area of the temporal change of the pulse rate in the first and second measurement periods and the temporal change of the pitch It is preferable that the display form of the change in the dot display area is different.

For example, when the pulse rate is displayed as a bar graph, the temporal change in pitch in the dot display area is displayed as a line graph for each time corresponding to the absolute value of the pitch.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to the drawings.

(Overall Structure) FIG. 1 is an explanatory view showing the overall structure of an arm-mounted pulse wave measuring apparatus of this example.

In FIG. 1, a wrist-worn pulse wave measuring device 1 (portable electronic device) of this example is a device body 10 having a wristwatch structure, and a cable 20 connected to the device body 10.
And a sensor unit 30 (pulse wave signal detecting portion) provided on the distal end side of the cable 20. The device body 10 is provided with a wrist band 12 that is wound around an arm in the wristwatch from the 12 o'clock direction and fixed at the 6 o'clock direction. With the wrist band 12, the device body 10 can be attached to and detached from the wrist. Sensor unit 30
Is attached between the base of the index finger and the knuckle while being shielded from light by the sensor fixing band 40 (unit fixing means). As described above, when the sensor unit 30 is attached to the base of the finger, the cable 20 can be short, so that the cable 20 does not interfere with running.
Further, when the distribution of body temperature from the palm to the fingertip is measured, the temperature at the fingertip decreases significantly when it is cold, whereas the temperature at the base of the finger does not relatively decrease. Therefore, if the sensor unit 30 is attached to the base of the finger, the pulse rate and the like can be accurately measured even when running outdoors on a cold day.

(Structure of the apparatus main body) FIG. 2 is a plan view showing the apparatus main body of the arm-mounted pulse wave measuring apparatus of this embodiment with the wristband and cables removed, and FIG. It is the side view which looked at the wave measuring device from the direction at 3 o'clock.

In FIG. 2, the apparatus main body 10 is provided with a resin watch case 11 (main body case). On the front surface side of the watch case 11, in addition to the current time and date, the pulse rate and other pulses are displayed. A liquid crystal display device 13 (display device) that digitally displays wave information and the like is configured. In the liquid crystal display device 13, a first segment display area 131 located on the upper left side of the display surface, a second segment display area 132 located on the upper right side, and a third segment display area 133 located on the lower right side. , And the dot display area 1 located on the lower left side
34 is configured, and various information can be graphically displayed in the dot display area 134.

In the inside of the watch case 11, in order to display the change of the pulse rate on the liquid crystal display device 13 based on the detection result (pulse wave signal) by the sensor unit 30, the control for the display device and the detection signal are performed. A control unit 5 that performs signal processing and the like is configured. Since the control unit 5 is also configured with a timing circuit, normal time, lap time,
The split time and the like can also be displayed on the liquid crystal display device 13.

On the outer peripheral portion and the surface portion of the watch case 11,
Button switches 111 to 117 for performing time adjustment, mode switching, operation for starting measurement of lap time and pulse wave information, and the like are configured.

The power source of the wrist-worn pulse wave measuring device 1 is a button type battery 59 built in the watch case 11,
The cable 20 supplies electric power from the battery 59 to the sensor unit 30, and inputs the detection result of the sensor unit 30 to the control unit 5 of the watch case 11.

In the arm-worn pulse wave measuring apparatus 1, it is necessary to increase the size of the apparatus main body 10 as its function is increased. However, the apparatus main body 10 has a restriction that it is worn on the arm. The device body 10 is set to a wristwatch at 6 o'clock and 1
It cannot be expanded toward 2 o'clock. In view of this, in this example, the device body 10 uses the horizontally long watch case 11 whose length dimension in the directions of 3 o'clock and 9 o'clock is longer than the length dimension in the directions of 6 o'clock and 12 o'clock. However, since the wristband 12 is connected at a position biased toward the 3 o'clock side, the wristband 12 has a large overhanging portion 101 in the 9 o'clock direction when viewed from the wristband 12, but such a large overhang is present. The part is not at 3 o'clock. Therefore, even if the horizontally long watch case 11 is used, the wrist can be freely bent, and the back of the hand does not hit the watch case 11 even if it falls.

A battery 59 is provided inside the watch case 11.
On the other hand, in the direction of 9 o'clock, the flat piezoelectric element 5 for the buzzer
8 are arranged. Since the battery 59 is heavier than the piezoelectric element 58, the position of the center of gravity of the apparatus main body 10 is in a position deviated in the 3 o'clock direction. Since the wrist band 12 is connected to the side where the center of gravity is deviated, the device body 10 can be stably attached to the arm. In addition, the battery 59 and the piezoelectric element 5
8 and 8 are arranged in the plane direction, the apparatus main body 10 can be made thin, and the user can easily replace the battery 59 by providing the battery lid 118 on the back surface part 119 as shown in FIG. .

(Structure of Mounting Device Main Body on Arm) In FIG. 3, a connecting portion 105 for holding the stop shaft 121 attached to the end portion of the wristband 12 is provided in the 12 o'clock direction of the watch case 11. Has been formed. In the 6 o'clock direction of the watch case 11, the wristband 12 wound around the arm is folded back at an intermediate position in the length direction, and a receiving portion 106 to which a fastener 122 for holding this intermediate position is attached is formed. Has been done.

In the 6 o'clock direction of the device body 10, the portion from the back surface portion 119 to the receiving portion 106 is the watch case 1
It is molded integrally with 1 and is about 115 ° to the back surface 119.
The rotation stopping portion 108 forms an angle. That is, when the device body 10 is mounted by the wristband 12 so as to be located on the upper surface L1 (back of the hand) of the right wrist L (arm), the back surface 119 of the watch case 11 has the upper surface L1 of the wrist L. While the rotation stopper 108,
It abuts on the side face L2 having the radius R. In this state, the back surface portion 119 of the apparatus body 10 feels to straddle the radius R and the ulna U, while the bending portion 109 between the rotation stopping portion 108 and the back surface portion 119 and the rotation stopping portion 108 contact the radius R. It makes you feel like you're in touch. As described above, since the rotation stopping portion 108 and the back surface portion 119 form an anatomically ideal angle of about 115 °, the device body 10 is moved in the direction of arrow A and the device body 10 is moved in the arrow direction. Even if an attempt is made to turn it in the direction of B, the device body 10 will not unnecessarily shift further. Also,
Since the back surface part 119 and the rotation stopping part 108 only restrict the rotation of the apparatus main body 10 at two positions on one side around the arm, the back surface part 119 and the rotation stopping part 10 are prevented even if the arm is thin.
Since 8 firmly contacts the arm, the rotation stopping effect is surely obtained, while the arm is thick and does not feel cramped.

(Structure of Sensor Unit) FIG. 4 is a sectional view of the sensor unit of this example.

In FIG. 4, the sensor unit 30 has a component housing space 300 formed therein by covering a back side of a sensor frame 36 as a case body with a back cover 302. A circuit board 35 is arranged inside the component storage space 300. LED3 is provided on the circuit board 35.
1, the phototransistor 32, and other electronic components are mounted. The sensor unit 30 includes a bush 393.
The end of the cable 20 is fixed by the
Each of the wirings is soldered on the pattern of each circuit board 35. Here, the sensor unit 30 is attached to the finger so that the cable 20 is pulled out from the base side of the finger to the apparatus main body 10 side. Therefore, the LED 31 and the phototransistor 32 are arranged along the length direction of the finger, of which the LED 31 is located on the tip side of the finger and the phototransistor 32 is located on the base of the finger. Such an arrangement has an effect that external light does not easily reach the phototransistor 32.

In the sensor unit 30, a light-transmitting plate 34 made of a glass plate is formed on the upper surface of the sensor frame 36 (substantially pulse wave signal detecting portion) to form a light-transmitting window. LED 31 and phototransistor 32
Respectively direct the light emitting surface and the light receiving surface toward the transparent plate 34. Therefore, when the finger surface is brought into close contact with the outer surface 341 (contact surface with the finger surface / sensor surface) of the transparent plate 34, L
The ED31 emits light toward the finger surface side,
The phototransistor 32 can receive the light reflected from the finger side of the light emitted by the LED 31. Here, the outer surface 341 of the translucent plate 34 has a structure protruding from its peripheral portion 361 for the purpose of enhancing the adhesion between the outer surface 341 of the translucent plate 34 and the finger surface.

In this example, InGaN is used as the LED 31.
System (indium-gallium-nitrogen system) blue LED is used, and its emission spectrum has an emission peak at 450 nm, and its emission wavelength range is from 350 nm to 60 nm.
It is in the range up to 0 nm. LE having such emission characteristics
Corresponding to D31, in this example, the phototransistor 3
2, a GaAsP-based (gallium-arsenic-phosphorus-based) phototransistor is used, and the light receiving wavelength region of the device itself has a main sensitivity region of 300 nm to 600 nm.
Up to 300 nm and there is a sensitivity region below 300 nm.

The sensor unit 30 configured as described above
As shown in FIG. 5, the sensor fixing band 40 (see FIG.
The illustration is omitted. When the light is emitted from the LED 31 toward the finger in this state, part of the light is absorbed by hemoglobin in the blood and part of the light is reflected. Finger (blood vessel)
The light reflected from the phototransistor 32 is received by the phototransistor 32, and the change in the amount of received light is the change in blood volume (pulse wave of blood).
Corresponding to. That is, when the blood volume is large, the reflected light becomes weak, while when the blood volume is small, the reflected light becomes strong. Therefore, if the change in the reflected light intensity is detected, the pulse rate or the like can be measured.

In this example, an LED 31 having an emission wavelength range of 350 nm to 600 nm and a phototransistor 32 having a light reception wavelength range of 300 nm to 600 nm are used. The biological information is displayed based on the detection result in the wavelength region up to approximately 600 nm, that is, in the wavelength region of approximately 700 nm or less. Such a sensor unit 30
By using, even when the external light hits the exposed part of the finger, the light included in the external light and having a wavelength range of 700 nm or less does not reach the phototransistor 32 (light receiving portion) using the finger as a light guide. The reason is that light having a wavelength range of 700 nm or less included in external light tends not to easily pass through a finger. Therefore, even if external light is applied to a part of the finger not covered with the sensor fixing band 40, As shown by the dotted line X, it does not reach the phototransistor 32 through the finger. In contrast,
When an LED having an emission peak near 880 nm and a silicon-based phototransistor are used, the light receiving wavelength range thereof extends from 350 nm to 1200 nm. In this case, as shown by an arrow Y in FIG. 5, 1 μm that allows the finger to easily reach the light receiving portion as a light guide.
Since the pulse wave is detected based on the detection result of the light having the wavelength of m, erroneous detection due to the fluctuation of the external light is likely to occur.

Further, since the pulse wave information is obtained by using the light in the wavelength region of about 700 nm or less, the S / N ratio of the pulse wave signal based on the blood volume change is high. The reason for this is that hemoglobin in blood has an extinction coefficient for light with a wavelength of 300 nm to 700 nm at a wavelength of 8 which is conventional detection light.
Several times to about 100 times the absorption coefficient for 80 nm light
Because it is more than twice as large, it changes sensitively to blood volume changes,
It is considered that the detection rate (S / N ratio) of the pulse wave based on the blood volume change is high.

In FIG. 5, reference numeral 38 is a light transmitting plate 34.
It is a human body grounding terminal arranged around the.

(Connecting Structure of Device Body and Sensor Unit) As shown in FIGS. 1 and 3, in the 6 o'clock direction of the device body 10, on the surface side of the portion extended as the rotation stopping portion 108. The connector portion 70 is configured so that the connector piece 80 configured at the end portion of the cable 20 can be attached to and detached from the connector portion 70. Therefore, if the connector piece 80 is removed from the connector portion 70, the wrist-worn pulse wave measuring device 1 can be used as an ordinary wristwatch or stopwatch. However, when the cable 20 and the sensor unit 30 are used with the connector portion 70 of the apparatus main body 10 removed, in order to protect the connector portion 70,
Attach the specified connector cover. The connector cover having the same structure as the connector piece 80 can be used. However, the connector cover does not require an electrode part or the like. In the connector structure thus configured, the connector portion 70 is on the front side when seen from the user,
Easy to operate. Further, since the connector part 70 does not project from the device body 10 in the direction of 3 o'clock, the user can freely move his / her wrist during running, and even if the user falls down during running, the back of the hand will not hit the connector part 70. Absent.

The electrical connection at the connector portion constituted by the connector portion 70 and the connector piece 80 is as shown in FIG.

In FIG. 6, terminals 751 to 756 (first terminal group) are formed in the connector portion 70 formed on the apparatus main body 10 side, and these terminals 751 to 751 are formed.
Corresponding to 756, the connector piece 80 has an electrode portion 8
31 to 836 (second terminal group) are configured. Among them, the terminal 752 is connected to the LED 31 via the electrode portion 832.
A positive terminal for supplying the second drive voltage VDD to
The terminal 753 is a terminal to be a negative potential of the LED 31 via the electrode portion 833, and the terminal 754 is a terminal for supplying a constant voltage VREG for driving to the collector terminal of the phototransistor 32 via the electrode portion 834. 751
Is a terminal to which a signal from the emitter terminal of the phototransistor 32 is input via the electrode portion 831.

The terminal 755 is a terminal to which a signal for detecting whether or not the connector piece 80 is attached to the connector portion 70 is input via the electrode portion 835, and when the connector piece 80 is attached to the connector portion 70. A signal to that effect is input to the control unit 5 of the apparatus body 10 via the connector unit 70.

The electrode portion 836 is grounded to the human body through the human body grounding terminal 38 in the sensor unit 30. When the terminal 756 and the electrode portion 836 are electrically connected, VDD is used as a ground line. Thus, the electrode portions 831 to 836 are shielded.

In the connector piece 80, the first capacitor C1 and the first switch SW1 are inserted between the terminals of the LED 31 (between the electrode portions 832 and 833). The switch SW1 is closed when the connector piece 80 is removed from the connector portion 70,
When the first capacitor C1 is connected in parallel to 31 and the connector piece 80 is attached to the connector portion 70, the first capacitor C1 is opened. Similarly, the second capacitor C2 and the second switch SW2 are inserted between the terminals of the phototransistor 32 (electrode portions 831 and 834).
This switch SW2 is also closed when the connector piece 80 is removed from the connector section 70, and the second capacitor C2 is connected in parallel to the phototransistor 32, and when the connector piece 80 is attached to the connector section 70. The open state. Therefore, when the connector piece 80 is detached from the connector portion 70, even if something having a high electric potential touches the electrode portions 831, 832, 833, 834 due to static electricity, the electric charge is not applied to the first and second capacitors C.
1 and C2, the LED 31 and the phototransistor 32 are not damaged. Also, the connector piece 8
When 0 is attached to the connector 70, the pulse wave signal can be automatically detected.

(Overall Structure of Control Unit) FIG. 7 is an explanatory view showing a part of the function of the control unit formed inside the main body of the wrist-worn pulse wave measuring apparatus of this example, and FIG. It is explanatory drawing which shows a part of function of the data processing part and display control part which were comprised in the control part. 7 and 8, the control unit,
The operation performed by the data processing unit and the display control unit is the CP
Since it is performed based on the program stored in U, its function is shown as a block diagram.

In FIG. 7, the control unit 5 has two ICs.
50 and 56 are provided. The IC 56 includes a clock unit 561 that performs a timing operation based on a signal from an oscillation circuit that includes a crystal oscillator and a variable capacitor, and a liquid crystal display booster circuit 541 that obtains a voltage for performing a predetermined display on the liquid crystal display device 13. , And a liquid crystal display drive circuit 562 for driving the liquid crystal display device 13 and the like. Also, IC
Reference numeral 56 denotes a mode switching unit 564 that performs control for switching the wrist-worn pulse wave measuring device 1 to a clock mode, a normal stopwatch function, and a pulse meter mode that measures pulse wave information, and a mode at that time. Liquid crystal display device 1
The display control unit 53 that controls the information processing to be displayed in 3 is configured.

In the control unit 5, the capacitive elements 528 and 558 are connected in parallel to the battery 59 by wiring, of which the capacitive element 528 is a backup for the memory 563 and the like configured inside the IC 56. For capacitors. On the other hand, the capacitive element 558 is the IC5
It is a backup capacitor for the memory 501 and the like which is configured inside 0.

Inside the apparatus main body 10, a voltage detector 543 for detecting the terminal voltage of the battery 59 and inputting the detection result to the IC 56 is constructed, and when the terminal voltage of the battery 59 decreases, The liquid crystal display device 13 is adapted to display that effect. In the inside of the apparatus main body 10, there is also configured a notification sound generation booster circuit 580 including a piezoelectric element 58 for generating a notification sound, and a coil for boosting the voltage output from the IC 56 and supplying the voltage to the piezoelectric element 58. Has been done.

(Structures of Data Processing Section and Display Control Section)
The IC 50 is configured with a data processing unit 55 that obtains a pulse rate and the like based on the input result from the sensor unit 30, and the data processing unit 55 outputs pulse wave information such as the pulse rate to an IC 56 (display control unit 53). By outputting to
Such information can be displayed on the liquid crystal display device 13.

That is, in FIG. 8, the data processing unit 5
5, the signal input from the sensor unit 30 via the cable 20 is amplified by the amplification unit 550 including an operational amplifier, and then the pulse wave signal conversion unit 551 including an A / D converter.
Are converted into digital signals and output to the pulse wave signal storage unit 552. The pulse wave signal storage unit 552 is a RAM that stores pulse wave data converted into a digital signal.
Is. The pulse wave signal calculation unit 553 is a pulse wave signal storage unit 55.
The signal stored in No. 2 is read, frequency analysis is performed on the signal, and the result is input to the pulse wave component extraction unit 554. The pulse wave component extraction unit 554 extracts the pulse wave component from the input signal from the pulse wave signal calculation unit 553 and outputs it to the pulse rate calculation unit 555, and the pulse rate calculation unit 555.
Calculates the pulse rate from the frequency component of the input pulse wave and outputs the result to the display control unit 53. The clock signal for performing these operations is IC
It is output from 56.

On the other hand, on the IC 56 side, the display control section 53 stores a designated range of the pulse rate preset by an external input as a pulse rate range and a target pulse rate as a reference pulse rate. Pulse rate range recording unit 53
4 and a working memory 533 for storing pulse rate data output from the data processing unit 55. In addition, the display control unit 53 has a display mode switch for automatically switching the display form on the liquid crystal display device 13 based on the content of the pulse rate data, the instruction input through the button switches 111 to 117, and the like. The part 536 is also configured.

The display on the liquid crystal display device 13 which is switched by the display control section 53 thus configured will be described in detail later, but is generally as follows.

First, after the time measurement is started based on the external operation of the button switches 111 to 117, the pulse rate data output from the data processing unit 55 with the passage of time is displayed by the display control unit 53. It is stored in the working memory 533.

Here, the display mode switching unit 536 compares the pulse rate measured this time with the pulse rate range stored in the pulse rate range storage unit 534, and the measured pulse rate reaches within the pulse rate range. If you decide that you have not done (1st
9A), the dot display area 134 of the liquid crystal display device 13 displays a bar graph extending every time corresponding to the absolute value of the measured pulse rate, as shown in FIG. 9A.

On the other hand, the display mode switching section 536 is
The pulse rate measured this time is within the pulse rate range stored in the pulse rate range storage unit 534 (when the pulse rate is 120 to 16).
When it is determined that the pulse rate is within the range (up to 8), the measured pulse rate and the pulse rate range storage unit 534 are stored thereafter (second measurement period), as shown in FIG. 9B. The dot display area 134 of the liquid crystal display device 13 is caused to display a bar graph extending in the positive direction or the negative direction for each time corresponding to the difference from the reference pulse rate (pulse rate 150).
That is, the display mode switching unit 536 automatically switches the form of graphic display performed in the dot display area 134 between the first measurement period and the second measurement period. Here, the pulse rate range and the reference pulse rate are data input by the user based on the results of training performed so far, and the pulse rate range “120 to 168” is shown in FIG. 9B. , The display of the angled brackets MA
Indicated by.

Further, in the wrist-worn pulse wave measuring apparatus 1 of this example, as shown in FIG. 8, an acceleration sensor 91 and a pitch data processing unit 92 for obtaining a running pitch based on the detection result of this sensor. And the data obtained by the pitch data processing unit 92 is also stored in the working memory 533 of the display control unit 53.
Therefore, when the button switches 111 to 117 are externally operated to display the pitch instead of the display of the pulse rate, the display mode switching unit 536 causes the display mode switching unit 536 to operate as shown in FIG.
As shown in (c), the time change of the pitch is displayed in the dot display area 134 of the liquid crystal display device 13 as a line graph for each time corresponding to the absolute value of the pitch. That is, the dot display area 1 of the temporal change of the pitch
The display form of 34 is different from the display form of the dot display area 134 of the temporal change of the pulse rate in any of the first and second measurement periods.

While performing such measurement, when entering the goal of the marathon, the button switches 111 to 117
Even after the external operation for stopping the time measurement is performed via the, the mode switching unit 564 is
The display control unit 53 causes the dot display area 134 to graphically display the temporal change in the pulse rate measured during this period as the pulse rate recovery characteristic while keeping the mode of continuing the pulse rate measurement.

The display form at this time is as shown in FIG. 10A, and the graph displayed in the dot display area 134 shows the transition of the pulse rate every 4 seconds. Time measurement is stopped at the time of display MB, and the graphic display after the time of display MB is an absolute value display different from the dot display form in the second measurement period. In other words, the degree of recovery of the pulse rate after entering the marathon goal and stopping the measurement of time is represented by different graphic displays.

At this time, immediately after or immediately after the time measurement is stopped, the pulse rate immediately before or immediately before is displayed as the display MC, and the display MB of the graph and the display MC of the pulse rate are made to blink, and immediately before or after the time measurement is stopped. It emphasizes that it is pulse data of.

The current pulse rate is displayed in the third display area 133, and the recovery rate of the pulse rate can be confirmed by comparing with the pulse rate immediately before or immediately after the stop of the time measurement. It is generally said that the higher the cardiopulmonary function is, the shorter the recovery time of the pulse is.

FIG. 10B shows a display form 2 minutes after the time measurement is stopped. The third segment display area 133 shows the pulse rate 2 minutes after the time measurement is stopped, and the pulse measurement thereafter is stopped. Figure 10
Similar to (a), the display MB in the graph and the display MC of the pulse value indicate the data immediately before or after the time measurement is stopped, and the graph indicated by the dot display area 134 is immediately before the time measurement is stopped. Or, it shows the temporal change of the pulse rate every 4 seconds from immediately after.

Referring again to FIG. 8, the display controller 53 graphically displays the original waveform of the pulse wave signal on the liquid crystal display device 13 based on the pulse wave signal digitalized by the pulse wave signal converter 551 ( A waveform data conversion unit 531 and a sweep display processing unit 532 for sweep display) are also configured.

Data processing unit 55 and sensor unit 30
Is not supplied with electric power when the arm-mounted pulse wave measuring device 1 is used as a normal wristwatch, and the arm-mounted pulse wave measuring device 1 is in a pulse wave information measurement mode in which it functions as a pulse meter. When the power becomes low, power is supplied, and the data processing unit 55 performs initialization processing such as setting an operation cycle on the A / D converter forming the pulse wave signal conversion unit 551.

The operation of the data processing unit 55 thus configured is controlled based on the commands from the mode switching unit 564 and the display control unit 53. The contents of this operation are shown in FIG.
This will be described with reference to the flowchart shown in FIG.

In FIG. 11, in step ST1, the mode switching section 564 switches the mode of the arm-mounted pulse wave measuring apparatus 1 to the pulse wave information measurement mode based on an external operation. In step ST2, the data processing section Power is supplied to 55 and the sensor unit 30. To switch to this measurement mode, the connector piece 80
It is performed by an external operation of putting on.

Subsequently, in step ST3, initialization processing such as setting of an operation cycle is performed on the A / D converter which constitutes the pulse wave signal converting section 551. In this example, the digitization of the pulse wave signal performed by the pulse wave signal conversion unit 551 is performed in a cycle of 4 seconds, and thus the process waits in step ST4 until the conversion is completed. During this time, the liquid crystal display device 13 displays a message to that effect, as described later.

Next, after the digitization of the pulse wave signal for one cycle is completed, in step ST5, the display control unit 53 (display mode switching unit 536) performs an external operation to start measuring time. To determine whether or not
In this example, as the external operation, when the button switch 117 located on the upper surface of the device body 10 is pressed after switching to the pulse wave information measurement mode, the display control unit 53 starts measuring time. It is determined that there was a command to do so. In this step ST5, the display control unit 5
When it is determined that the external operation is not performed such that the time measurement is started, in step ST6, the digitalized pulse wave signal is processed by the waveform data conversion unit 531 and the sweep display processing unit 532. The waveform is converted and the original waveform of the pulse wave signal is graphically displayed on the liquid crystal display device 13 (step ST7).

On the other hand, in step ST5, when the display control section 53 determines that the external operation for starting the time measurement is performed, in step ST8 the pulse wave signal calculation section 553 is instructed to the pulse wave signal calculation section 553. The signal stored in the pulse wave signal storage unit 552 is read out, frequency analysis is performed on the signal, and the result is input to the pulse wave component extraction unit 554. Thereafter, in step ST9, the pulse wave component extraction unit 554 is caused to perform the analysis. On the other hand, it is converted into pulse data. Then, in step ST7, the pulse wave information such as the pulse rate is displayed on the liquid crystal display device 13. After finishing the process of step ST7, it returns to step ST4. Therefore, the latest data is displayed on the liquid crystal display device 13.

(Main operation of mode switching unit) Referring again to FIG.
In the above, the mode switching unit 564 measures the pulse wave information together with the timepiece mode, the stopwatch mode, and the timekeeping of the arm-mounted pulse wave measuring device 1 based on an external operation (operation of the button switches 111 to 117). It has a function to switch to the pulse rate mode. In addition, the display control unit 53
Starts the operation described with reference to FIGS.
All the operations related to the display performed by the wrist-worn pulse wave measuring device 1 are controlled. Therefore, the configuration and operation of the mode switching unit 564 and the display control unit 53 will be described while describing the operation of the arm-mounted pulse wave measuring apparatus 1.

FIG. 12 schematically shows each mode performed by the wrist-worn pulse wave measuring device 1 and the display contents on the liquid crystal display device 13 at that time.

In FIG. 12, step ST11 is the timepiece mode, in which the first segment display area 131 is set to 1
December 6th, 994, the message that it is Monday is displayed, and the second
In the segment display area 132 of, the current time is 10 pm
It is displayed that the time is 08:59. In the dot display area 134, "TIME" is displayed as the current mode is the clock mode. However, as will be described later, “TIME” is displayed in the dot display area 134 only for a few seconds immediately after the timepiece mode is selected. The third segment display area 13
Nothing is displayed in 3.

In the wrist-worn pulse wave measuring apparatus 1 of this example, when the button switch 111 located in the 2 o'clock direction is pressed in the clock mode, an alarm sound can be generated, for example, after one hour has passed. The occurrence time of can be set arbitrarily. Also, the button switch 1 at 11:00
When the user presses 13, the EL backlight of the liquid crystal display device 13 is turned on for 3 seconds and then automatically turned off.

When the button switch 112 in the 4 o'clock direction is pressed from this mode, the running mode (step S
T12). This mode is a mode when the wrist-worn pulse wave measuring device 1 is used as a stopwatch. In the running mode, before the measurement is started (standby state), the first segment display area 13
The current time is displayed in 1 and the second segment display area 1
32, "0: 00'00" 00 "is displayed, and in the dot display area 134," RUN "is displayed for 2 seconds as a guide indicating that the running mode is set, and then the graphic is switched.

When the button switch 112 in the 4 o'clock direction is pressed from this mode, the mode is switched to the lap time recall mode (step ST13). This mode is a mode in which the lap time and the split time measured in the past using the wrist-worn pulse wave measuring device 1 are read out. In the lap time recall mode, the date is displayed in the first segment display area 131 and the current time is displayed in the second segment display area 132. In the dot display area 134, “LAP / RECALL” is displayed for 2 seconds as a guide indicating that the recall mode is set, and then the latest pulse rate transition for each lap is displayed.

When the button switch 112 in the 4 o'clock direction is pushed from this mode, the mode is switched to the pulse wave measurement result recall mode (step ST14). This mode is a mode in which a temporal change in the pulse rate measured in the past using the wrist-worn pulse wave measuring device 1 is read. Further, in the wrist-worn pulse wave measuring device 1 of this example, the device body 10 is provided with a function of measuring the temporal change of the pitch during the marathon by using the acceleration sensor. It is also possible to read out the time change of the measured pitch. In the pulse wave measurement result recall mode, the date is displayed in the first segment display area 131 and the current time is displayed in the second segment display area 132. In the dot display area 134, "RESULT / RECALL" is displayed for 2 seconds, and then a graph showing the temporal change of the average pulse rate is displayed.

When the button switch 112 in the 4 o'clock direction is pressed again from this mode, the mode returns to the timepiece mode (step ST11) as indicated by arrow P1. Further, in steps ST12 to ST14, even when there is no input for 10 minutes, the mode automatically returns to the timepiece mode (step ST11) as indicated by arrow P2. When returning to this clock mode, the first segment display area 1
The date is displayed in 31 and the second segment display area 13
The current time is displayed in 2.

In this example, when the clock mode is selected,
In the dot display area 134, as shown in an enlarged view in FIG. 13A, “TIME” is displayed as returning to the clock mode, but this guidance display is as shown in FIG. 13B. It disappears automatically after 2 seconds, and the normal state of the clock mode (step ST15) is entered. In the normal state of the timepiece mode, nothing is displayed in the dot display area 134.

In this clock mode, when the button switch 112 in the 4 o'clock direction is pulled out by one step, the mode switches to the time and date correction mode. That is, in FIG. 14, when the button switch 112 in the 4 o'clock direction is pulled out from the normal state of the timepiece mode (step ST15) by one step, first, the mode is switched to the second set mode (step ST21). In this mode, when the button switch 117 located on the upper side of the device body 10 is pushed, the value is incremented by one, and conversely, when the button switch 118 located on the lower side of the device body 10 is pushed, the value becomes 1. Go down one by one. Button switch 11 at 7 o'clock from this mode
Press 5 to switch to minute setting mode (step S
T22). After that, the button switch 115 in the 7 o'clock direction
Each time is pressed, the time setting mode (step ST2
3) The mode is switched to the year setting mode (step ST24), the month setting mode (step ST25), the day setting mode (step ST26), and the mode for selecting 12 hours / 24 hours display (step ST27), and again. Return to the second set mode (step ST21).

During this time, in any mode, when the button switch 112 in the 4 o'clock direction is pushed in, the mode returns to the timepiece mode. Also at this time, as described with reference to FIGS. 13A and 13B, the clock mode (step ST1
Returning to 1), the dot display area 134 displays "TI
The guide display with "ME" is displayed for 2 seconds, and after that,
This guidance display automatically disappears, and the normal state of the clock mode (step ST15) is entered.

As described above, when the time mode is returned to, the display of "TIME" for guiding the selection of the clock mode is displayed in the dot display area 134 for only 2 seconds, and after 2 seconds, the guidance display is automatically displayed. It is erased to the normal state of the clock mode. In other words, the dots are displayed for the minimum time required to guide the user to the mode,
Power saving is achieved by displaying a mode display indicating that the area is off and that the clock mode is in the normal state. Therefore, in the wrist-worn pulse wave measuring device 1 of this example,
The button-type battery 59 is small and lightweight from the viewpoint of portability, although it has a large power consumption due to its multi-function that can also be used as a pulse rate meter and a pitch meter.
The battery 59 has a long life even when only the battery is mounted as a power source. In particular, since the dot display area 134 has a large amount of information that can be displayed, the display time there is set to a necessary minimum of several seconds instead of displaying the mode guide display in detail there. Therefore, to use it for mode guide display,
The disadvantage that the power consumption of the dot display area 134 is larger than the power consumption of the first to third segment display areas 131 to 133 is solved. Therefore, according to the present example, it is possible to realize both easy understanding of the mode guide display and power saving.

(Running Mode as Pulse Rate Monitor) In the arm-mounted pulse wave measuring apparatus 1 of this example, from any state,
When the connector piece 80 is attached to the connector section 70, a signal to that effect is automatically input to the control section 5 (mode switching section 564) as described with reference to FIG. As indicated by the arrow P3, the process moves to the running mode (step ST12). That is, the connector portion 7
The external operation of mounting the connector piece 80 on 0 is an operation for switching to the running mode as the pulse rate monitor. The running mode at this time is a mode in which not only the stopwatch operates but also the pulse rate during running can be measured.

The function of the pulse rate monitor in the running mode will be described with reference to FIGS. 15 and 16.

First, the external operation of mounting the connector piece 80 on the connector portion 70 is performed as shown in FIG.
As shown in (a), the current time is displayed in the first segment display area 131 of the liquid crystal display device, and "0: 00'00" 00 "is displayed in the second segment display area 132. In the display area 134, “RUN” is displayed. In addition, the heart mark flashes in the third segment display area 133 to indicate that the mode has been switched to the running mode as the pulse rate monitor (step ST3).
1).

By this mode switching, electric power is supplied to the data processing section 55 shown in FIG. 8, and the A / D converter constituting the pulse wave signal converting section 551 is set with an operating cycle. The initialization process is performed.

Two seconds after the initialization process is started, the pulse wave signal for measuring the initial pulse rate is taken in as shown in FIG. At this time, the display of "STOP / 5" is displayed in the dot display area 134 (step ST
32) and "MOTION / 4" are displayed (step S
And T33) are alternately performed at 2 Hz, and the message "Do not move for 5 seconds" is displayed. The number displayed at this time is a countdown for 5 seconds and is switched.

In this way, after the initial value of the pulse rate has been measured, the apparatus main body 1 starts to measure time.
0 is in a standby state until the button switch 117 located above the 0 surface is pressed (step ST34).

In this standby state, the dot display area 134
16B, the original waveform of the pulse wave signal is displayed graphically as shown in FIG. The original waveform displayed here is
The latest data.

Therefore, by confirming the waveform and level of the original waveform of the pulse wave signal before starting the time measurement (marathon), it is possible to determine in detail whether the mounting state of the LED 31 or the phototransistor 32 is good or bad. Further, by adjusting the LED 31 and the phototransistor 32 while checking the shape and level of the original waveform, the positions of the LED 31 and the phototransistor 32 can be set to the optimum positions. Moreover, it is possible to confirm in advance whether the ambient temperature or humidity is an environment in which pulse wave information can be measured. Furthermore, such a function can be used for inspection of the wrist-worn pulse wave measuring device 1 at the time of manufacture. Further, since the original waveform is displayed graphically, it is possible to confirm whether or not the time axis has changed due to battery exhaustion or the like.

Also, after switching to the pulse wave information measurement mode, while the pulse wave signal measurement cannot be started immediately,
Since the display shown in FIG. 16 (b) is performed after the processing shown in FIG. 16 (a) is performed and the processing for obtaining the pulse wave information is enabled, the pulse wave is displayed only after the transition to the display of the original waveform. You can be sure that you are ready to measure information.

The initial pulse rate "75" is displayed in the third segment display area 133.

When the marathon is started from this state and the button switch 117 located on the upper side of the surface of the apparatus main body 10 is pressed at the same time, the elapsed time starts to be measured and the pulse rate continues to be measured (step ST3).
5).

As for these measurement results, as shown in FIG. 9A, first, the elapsed time is displayed in the second segment display area 132, and the temporal change of the pulse rate is displayed in the dot display area 134. Graphically displayed. The graphic display performed at this time is a bar graph extending from the lower side to the upper side with the pulse rate 65 at the substantially middle position on the vertical axis.
Meanwhile, in the third segment display area 133, the scale of the vertical axis of the graph displayed in the dot display area 134,
The pulse rate at that time is displayed.

In this state, the pulse rate is within the range (pulse rate 1
When the pulse rate falls within the designated range from 20 to 168), the pulse rate is graphically displayed as a difference from the preset reference pulse rate (step ST36). That is,
As shown in FIG. 9B, the graphic display performed in the dot display area 134 changes. In the graphic display performed at this time, a pulse rate of 150 is set at a substantially middle position on the vertical axis, and a portion corresponding to the difference from this value is vertically (positive / negative direction)
It is a bar graph display extending to. Further, a mark (display MA) indicating the designated range of the pulse rate is displayed on the right end portion of the dot display area 134.

During this time, the button switch 1 located at 8 o'clock
When 14 is pressed, a temporal change in pitch is graphically displayed in the dot display area 134 (step ST37).

Since the pitch 170 is set as the target pitch, the graphic display performed at this time is a line graph with the pitch 170 at the substantially middle position of the vertical axis. At this time, in the third segment display area 133, the scale of the vertical axis of the graph displayed in the dot display area 134 (meaning that the approximate middle position of the vertical axis is the pitch 170) and the pitch at that time are displayed. It

From this state, when the button switch 114 in the 8 o'clock direction is pressed again, a state in which the temporal change of the pulse rate is displayed in the dot display area 134 (step ST3
Return to 6).

When the button switch 116 located on the lower side of the surface of the apparatus main body 10 is pressed while passing the predetermined passing point, the lap time at that time is displayed in the first segment display area 131 (step ST38). . And
After 10 seconds, the process automatically returns to step ST36.

Then, when the player arrives at the goal and presses the button switch 117 located on the upper surface of the apparatus body 10 at the same time, the measurement of the pulse rate, the pitch, and the time is stopped, and the dot display area 134 displays "COOLING / DOW
"N" is displayed (step ST39). When 2 minutes have passed from this state, a temporal change in the pulse rate after the goal is reached is graphically displayed as a pulse recovery characteristic in the dot display area 134 (step ST40).

As shown in FIG. 10 (a), the graphic display of the pulse recovery characteristics is first switched to a bar graph display extending from bottom to top, and after 16 seconds have passed, that is, the pulse rate After the measurement of four points is completed, as shown in FIG. 10 (b), the temporal change of the pulse rate for 2 minutes after the time measurement is stopped, that is, the time measurement, is displayed by the bar graph graphic display. The pulse rate for 30 points after the stop is displayed.

From this state, when the button switch 114 at 8 o'clock is pressed, the "PUL" is displayed in the dot display area 134.
After “SE / RESULT” is displayed for 1.5 seconds (step ST41), the dot display area 134 displays the temporal change of the pulse rate in the current marathon (step ST42). In addition, when the button switch 114 located in the 8 o'clock direction is pressed, the “PITCH
"/ RESULT" is displayed for 1.5 seconds (step ST43), and then the dot display area 134 displays the temporal change of the pitch in this marathon (step ST44). Furthermore, the button switch 1 at 8 o'clock
When you press 14, the dot display area 134 displays “COOLIN
"G / DOWN" is displayed for 1.5 seconds (step S
(T45), the process returns to the state (step ST40) in which the temporal change in the pulse rate after reaching the dot display area 134 is graphically displayed as the pulse recovery characteristic.

When the button switch 116 located below the surface of the apparatus body 10 is pressed after the goal is reached, the dot display area 134 displays "PROTECT / MEMO" guidance as to whether or not to store the current result. "Y" is displayed (step ST46), and when the button switch 117 located on the upper surface of the apparatus main body 10 is pressed and "YES" is answered, it is determined that the result is being stored in the dot display area 134, "MEMORY". Is displayed (step ST
47) After 2 seconds, it returns to the initial state (step ST31).

After the measurement of the pulse rate is completed,
When the button switch 112 in the 4 o'clock direction is pressed,
As shown in FIG. 2, the mode is switched to the lap time recall mode (step ST13). When the button switch 112 in the 4 o'clock direction is pressed from this mode, the mode is switched to the pulse wave measurement result recall mode (step ST14). Also in this mode, the dot display area 134 can graphically display the temporal change of the pulse rate. When the button switch 112 in the 4 o'clock direction is pressed from this state, the mode returns to the timepiece mode (step ST11).

When returning to this mode, the date is displayed in the first segment display area 131 and the current time is displayed in the second segment display area 132. Further, in the dot display area 134, it is displayed that the time is returned to the clock mode by "T
Although a guidance display such as "IME" is displayed, this display automatically disappears after 2 seconds as shown by arrow P4, and the normal state of the clock mode (step ST15) is set.

(Sub-operation of mode switching unit) Referring again to FIG. 7, in the arm-mounted pulse wave measuring apparatus 1 of this example, the battery 59 is used.
A switch mechanism 500 for detecting the presence / absence of a battery is interposed between the IC 56 and the line 57 electrically connected to the positive electrode and the terminals of the capacitive elements 528 and 558, and the switch mechanism 500 includes It is designed to open and close in conjunction with the attachment / detachment operation of the battery 59.

That is, the mode switching section 564 of the IC 56.
Since the battery 59 was removed for replacement, the switch mechanism 500 is closed, and when a predetermined signal (terminal voltage of the capacitive element 528) is input from the line 57 via the switch mechanism 500, the device is switched from the normal mode to the device. An operation of switching to an energy saving mode for forcibly stopping part of the operation performed by the main body 10 is performed. As the energy saving mode, the mode switching unit 56
No. 4 first stops the power supply to the notification sound generation booster circuit 580, stops the output of the clock signal to the IC 50, and further stops the power supply to the liquid crystal display booster circuit 541. Drive circuit 56 for liquid crystal display
In 2, the common voltage and the segment voltage for the liquid crystal display device 13 are set to the same potential, and the display there is completely stopped. In the energy saving mode, the electric power necessary for continuing the time counting operation and backing up the memories 563 and 501 is supplied from the capacitive elements 528 and 558. Therefore, since the timekeeping operation is continued even after the battery 59 is removed, it is not necessary to adjust the time after replacing the battery 59. In addition, the data stored in the memories 563, 501 and the like until then are not lost.

When the battery 59 is attached, the switch mechanism 500 is in an open state, so that no signal is input. However, even in this state, the battery 59 does not supply power unless the back cover 118 is attached. Since such a state is monitored by the voltage detector 543, after the battery 59 is mounted, the back cover 118 is also mounted, and the power supply from the battery 59 is restarted, and then the mode switching unit 564 starts the energy saving mode. Return to normal mode. In addition, the mode switching unit 564 displays the voltage value between the terminals of the newly installed battery 59 detected by the voltage detector 543, on the liquid crystal display device 13.
To be displayed immediately.

(Main Effects of the Embodiment) As described above, in the wrist-worn pulse wave measuring apparatus 1 of this embodiment, after the start of the time measurement, the measured pulse rate is kept within the predetermined range. Between the first measurement period and the second measurement period after the pulse rate reaches within the predetermined range, as shown in FIG.
As described with reference to (b), the dot display area 13
Since the display form of the temporal change of the pulse rate in 4 is switched, when used for monitoring the pulse rate during a marathon, for example, even if the dot display area 134 is small, the runner can
By occasionally looking into the dot display area 134, it is possible to easily grasp the level of the pulse rate depending on the form of the display. Moreover, since what is displayed there is a temporal change in the pulse rate, it is possible to grasp the physical condition in detail. Immediately after the start of the marathon, the pulse rate changes abruptly, but the display form may differ between when the measured pulse rate is within the range and when the measured pulse rate is outside the range. Therefore, in the dot display area 134 having a limited area, it is possible to perform easy-to-see display according to the pulse rate level.

In particular, until the pulse rate reaches a predetermined range, as shown in FIG. 9 (a), a bar graph extending every hour corresponding to the absolute value of the pulse rate is displayed to display the pulse rate. After reaching the predetermined designated range, as shown in FIG. 9B, a bar graph extending in the positive direction or the negative direction at each time corresponding to the difference from the predetermined reference pulse rate is displayed. Therefore, even if the dot display area is small, comparison with the physical condition during training can be performed in detail and easily.

Further, as shown in FIG. 9C, in the dot display area 134, the change over time of the pitch during running is displayed in a form different from the display of the pulse rate such as a line graph. Can easily determine which information is currently displayed by looking at the display form, and can also easily and physically grasp the physical condition from the temporal change in pitch.

Further, as shown in FIGS. 10 (a) and 10 (b), the pulse rate measurement is continued for a predetermined period even after the external operation for stopping the time measurement is performed. However, since the temporal changes in the pulse rate measured during this period are also displayed graphically, it is possible to grasp the recovery characteristics of the pulse rate when training for a marathon or the like. In this case, FIG.
As shown in (a), a graphic display of the recovery characteristics,
Since the display form is different from the graphic display during time measurement, it is possible to easily determine in which period the pulse rate is displayed. Further, to display simultaneously with the pulse rate immediately before or immediately after the external operation to stop the measurement of time and immediately before, and the current pulse rate within a predetermined period thereafter,
It is easy to check the recovery status of pulse rate.

[0103]

As described above, in the portable pulse wave measuring device according to the present invention, after the start of the time measurement, the first measurement period until the pulse rate reaches the predetermined specified range, It is characterized in that the display form of the temporal change of the pulse rate in the dot display area is switched during the second measurement period after the pulse rate reaches the predetermined specified range.
Therefore, according to the present invention, when used, for example, for monitoring the pulse rate during a marathon, the runner may occasionally look into the dot display area of the display device, and depending on which form the display is, the dot display may be performed. Even if the area is small, it is possible to easily understand how much the pulse rate is. Moreover, since what is displayed there is a temporal change in the pulse rate, it is possible to grasp the physical condition in detail. Furthermore, immediately after the start of the marathon, the pulse rate changes rapidly, but even in this case, the display mode automatically switches according to the level, so the pulse rate can be changed within the limited dot display area. It is possible to perform easy-to-see display according to the level of.

In particular, until the pulse rate reaches the predetermined specified range, a bar graph extending every time corresponding to the absolute value of the pulse rate is displayed, and after the pulse rate reaches the predetermined specified range, When a bar graph is displayed that extends in the positive or negative direction for each time corresponding to the difference from the predetermined reference pulse rate, even if the dot display area is small, details such as comparison with the physical condition during training, And it can be done easily.

Even after the external operation for stopping the time measurement was performed, the pulse rate measurement was continued for a predetermined period, and the temporal change of the pulse rate measured during this period was also graphically displayed. In this case, it is possible to grasp the recovery characteristics of the pulse rate when training for a marathon. Also in this case,
Since the display form is different between the display of the recovery characteristic and the display during time measurement, it is possible to easily determine in which period the pulse rate is displayed. Moreover, when the pulse rate is displayed immediately after or immediately before the external operation for stopping the time measurement and the current pulse rate within the predetermined period thereafter, the recovery state of the pulse rate is displayed. Easy to check.

In the dot display area, when the temporal change of the pitch during running is displayed in a form different from the display of the pulse rate, the runner only sees the display form and the current display shows which one. You can easily determine whether you are doing it, and you can easily and easily understand your physical condition from the change in pitch over time.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an overall configuration of an arm-mounted pulse wave measuring device according to an embodiment of the present invention and a usage state.

FIG. 2 is a plan view of a device body of the wrist-worn pulse wave measuring device shown in FIG.

FIG. 3 is an explanatory view of the wristwatch-type pulse wave measuring device shown in FIG. 1 when viewed from the wristwatch at 3 o'clock.

FIG. 4 is a cross-sectional view of a sensor unit used in the wrist-worn pulse wave measuring device shown in FIG.

5 is an explanatory diagram showing a state in which the sensor unit used in the arm-mounted pulse wave measuring device shown in FIG. 1 is worn on a finger.

6 is an explanatory diagram showing an electrical connection relationship in a connector portion of the wrist-worn pulse wave measuring device shown in FIG.

7 is a block diagram showing a part of a function of a control unit of the wrist worn pulse wave measuring device shown in FIG.

8 is a block diagram showing a part of the functions of a data processing unit and a display control unit configured in the control unit shown in FIG.

9A is an explanatory diagram showing a display form until the pulse rate reaches a predetermined range in the wrist-worn pulse wave measuring device shown in FIG. 1, and FIG. 9B shows a pulse rate being predetermined. And FIG. 6C is an explanatory diagram showing a display form after reaching the range of, and (c) is a display form showing a temporal change in pitch.

10A shows a display form before a predetermined time elapses after an operation to stop measuring time is performed in the wrist-worn pulse wave measuring device shown in FIG. 1. FIG. Explanatory drawing, (b) is an explanatory view showing a display form when the measurement of the pulse rate is completed for a predetermined time after the measurement of the time is stopped.

11 is a flowchart showing an operation performed by the data processing unit shown in FIG.

FIG. 12 is an explanatory diagram showing each mode of the arm-mounted pulse wave measuring apparatus for explaining the function of the mode switching unit of the arm-mounted pulse wave measuring apparatus shown in FIG. 1.

13A is an explanatory diagram showing a guidance display when the clock mode is selected from the modes shown in FIG. 12, and FIG.
[Fig. 6] is an explanatory diagram showing a state in which the guide display has disappeared.

FIG. 14 is an explanatory diagram showing the contents of the display when the time and the like are set in the clock mode of the modes shown in FIG.

FIG. 15 is a diagram showing the wrist-worn pulse wave measuring device shown in FIG.
It is explanatory drawing for demonstrating the function in the running mode as a pulse rate monitor.

16 (a) is an explanatory diagram showing the content of the display that the running mode as the pulse rate monitor shown in FIG. 15 has been switched, and FIG. 16 (b) shows the content of the display before starting the measurement in this mode. Explanatory drawing shown, (c) is explanatory drawing which shows the content of the display after measurement is started in this mode.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-53-32765 (JP, A) JP-A-55-12452 (JP, A) JP-A-6-197890 (JP, A) JP-A 61- 196937 (JP, A) Actual development Sho 58-13588 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61B 5/024-5/0255 A61B 5/22

Claims (6)

(57) [Claims] 1. A portable pulse wave measuring device capable of measuring a pulse rate while being carried and graphically displaying a temporal change of the measured pulse rate in a dot display area of a display device. A first measurement period after the time measurement is started based on the operation until the measured pulse rate reaches a predetermined designated range, and a second measurement period after the pulse rate reaches the predetermined designated range.
The display mode of the temporal change of the pulse rate in the dot display area is switched between the measurement period of 1) and the measurement period of 2). 2. The display according to claim 1, wherein a bar graph extending every hour corresponding to the absolute value of the measured pulse rate is displayed in the first measurement period, and the measured pulse is displayed in the second measurement period. Display of a measurement result in a portable pulse wave measuring device characterized by performing a bar graph display extending in the positive direction or the negative direction at each time corresponding to the difference between the number and a predetermined reference pulse rate within the specified range. Method. 3. The pulse rate measurement according to claim 1 or 2, wherein the pulse rate is continuously measured for a predetermined period even after an external operation for stopping the time measurement is performed. Displaying a measurement result in a portable pulse wave measuring device characterized in that the temporal change of the number is graphically displayed in the dot display region in a display form different from the display form in the dot display region in the second measurement period. Method. 4. The pulse rate according to claim 3, which is displayed immediately after or immediately before an external operation for stopping the time measurement is displayed simultaneously with the current pulse rate within the predetermined period. A method of displaying measurement results in a portable pulse wave measuring device. 5. The portable pulse wave measuring device according to claim 1, wherein the display in the dot display area is a graphic display of a temporal change of a pulse rate and an acceleration based on an external operation. The dot display of the temporal change of the pulse rate in the first and second measurement periods is configured to be switched between the graphic display of the temporal change of the pitch during running obtained based on the measurement result of the sensor. A method of displaying a measurement result in a portable pulse wave measuring apparatus, characterized in that a display form in a region and a display form in the dot display region of a temporal change in pitch are different. 6. The portable pulse wave measuring device according to claim 2, wherein the display in the dot display area is based on an external operation and is based on a graphic display of a temporal change of a pulse rate and a measurement result of an acceleration sensor. It is configured to switch between the graphic display of the temporal change of the pitch at the time of running obtained, the display of the temporal change of the pitch in the dot display area, by a line graph for each time corresponding to the absolute value of the pitch A method of displaying a measurement result in a portable pulse wave measuring device, which is a display.