JP4503818B2 - Display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a display device that displays the cardiac output (blood flow) of a subject who is exercising, and is particularly suitable for grasping the degree of heart burden and the amount of exercise during training on a bicycle.
[0002]
[Prior art]
Conventionally, various devices for measuring and displaying the amount of exercise during jogging or pedaling of a stationary bicycle have been proposed and used. The simplest one is called a “pedometer”, which detects the vertical vibration and calculates and displays the number of steps and energy consumption, but it is insignificant in terms of accuracy. there were. In view of this, the first conventional technique disclosed in Japanese Patent Laid-Open No. 7-246255 is provided with an appropriate exercise instruction device for instructing the subject on an optimal exercise continuation method from the subject's personal information and the velocity and heart rate during exercise of the subject. JP-A-9-173500 provided with a display means for calculating a cumulative value of fat consumption from a load and an exercise time and displaying it in a graph in a training system intended for dieting by load pedaling of an installed type bicycle The second conventional example disclosed in the gazette has been proposed, and it has become possible to improve the accuracy and finely display and instruct according to the exercise state.
[0003]
[Problems to be solved by the invention]
However, in the one disclosed in the first conventional example, an optimal exercise continuation method is instructed according to the exercise characteristics of the individual subject while displaying the movement distance and energy consumption during exercise by optical means or voice means. Although it was possible, only the distance traveled and the energy consumption were displayed, which was not very real for the subject during exercise. In addition, although disclosed in the second conventional example, it is possible to easily set the target of the exercise effect by performing the image simulation during the diet and the accumulated value of the fat consumption by the easy-to-understand graph display, but the sensor or the like These devices are set up for indoor use and the place of use is limited, and the display contents are merely numerical indicators such as the subject's heart rate, exercise time, and load, and there is no consideration for variations in individual subjects. Because there is no such thing, there was a limit as an index.
[0004]
Therefore, the present invention solves the problems of the conventional display device, is suitable for outdoor use, and enables the clear and appropriate grasp of exercise intensity and exercise amount by adopting the display content of a new scale. The purpose is to provide.
[0005]
[Means for Solving the Problems]
Therefore, the present invention provides an input unit that inputs personal information of a subject, a pulsation sensor that detects a heartbeat or a pulse during exercise of the subject, and a stroke volume of the subject based on the personal information from the input unit. estimating the counts the signal from the beat sensor and a control unit including a computing unit, Rutotomoni provided a display unit for displaying the cardiac output of a subject during exercise obtained by the control unit, the In addition to the cardiac output of the subject who is exercising, the display unit is provided with a cumulative cardiac output, the number of blood circulation in the body, and an exercise intensity display unit . The present invention also provides an input unit for inputting personal information of a subject, a pulsation sensor for detecting a heartbeat or a pulse during exercise of the subject, and a stroke volume of the subject based on the personal information from the input unit. Rutotomoni provided a control unit including a computing unit estimated counting the signal from the beat sensor, and a display unit that displays the cardiac output of a subject during exercise obtained by the control unit, the input An input means for inputting the subjective comfort level of the subject during exercise is installed in the display portion or the display portion, and the stroke volume of the subject is corrected based on information from the input means. Features. Further, the present invention provides a bicycle characterized in that the display device is attached to a visual recognition position, and the pulsation sensor is installed in a grip portion of a handle bar. Further, the present invention is characterized in that the pulsation sensor is composed of detection means for detecting a potential difference between the electrodes respectively installed on the grip portions of the left and right handlebars. It is a means.
[0006]
Embodiment
Embodiments of the present invention will be described below with reference to the drawings. 1 is an overall plan view of an input unit and a display unit in the display device of the present invention, FIG. 2 is a schematic block diagram of the display device of the present invention, and FIG. 3 is an overall side view of a bicycle equipped with the display device of the present invention. 4 is an enlarged view of the main part of FIG. 3, FIG. 5 is a control flow chart in the display device of the present invention, and FIG. 6 is a relationship diagram of heartbeat and exercise.
As shown in FIG. 2, the display device of the present invention includes an input unit 2 that inputs personal information of a subject, a pulsation sensor 12 that detects a heartbeat or pulse during exercise of the subject, and personal information from the input unit 2. And a control unit 14 including a calculation unit 18 that estimates the stroke volume of the subject and counts the signal from the pulsation sensor 12, and the heart rate of the subject during exercise obtained by the control unit 14 Rutotomoni provided a display unit 3 for displaying the output, to the display unit 3, in addition to the cardiac output of a subject during exercise, cumulative cardiac output, systemic blood circulation times and exercise intensity display unit 9, 8 and 10 are provided .
[0007]
More specifically, as shown in FIG. 1, the display device 1 includes an upper input unit 2 and a lower display unit 3. The input unit 2 is provided with several types of input units composed of a number of push buttons, a gender input unit 4 for identifying gender differences, an age input unit 5 for inputting age and age, weight for inputting physical information, height It comprises an input unit 6 and an exercise amount input unit 7 for inputting the daily exercise amount of the subject. These input units may be a touch panel system displayed on a panel of a display unit to be described later.
The display unit 3 includes a blood circulation number display unit 8 that displays the blood circulation number from the cardiac output (blood flow rate) and the total blood volume, and a cumulative cardiac output that displays the total cardiac output that has flowed through the exercise. An exercise intensity display unit 10 is provided that displays the exercise intensity (indicator of tightness) by providing the display unit 9 and the red zone 10B.
[0008]
Furthermore, a comfort button 11 and a clock T that can grasp the comfort level of the subject during exercise and correct the estimated stroke volume of the subject based on the personal information are provided on a part of the display unit 3. . The comfort button 11 is pressed when the current exercise is subjectively comfortable for the subject, and the personal information input by the input unit 2 is used as it is. For example, the comfort button 11 is pressed for a predetermined time. If not, based on the detected heart rate, it is determined whether the current exercise is hard or easy, and the estimated stroke volume of the subject based on the personal information is corrected. As the comfort button, two buttons that are pressed only when it is tight or comfortable may be provided, and in addition to these, a button that is pressed only when it is comfortable is added and arranged. Also good. In these cases, the determination means for determining whether the current exercise is hard or easy based on the heart rate is corrected. The timepiece T can display the current time, can be switched to display of exercise time, or can be switched to a display function of heart rate and energy consumption described later.
[0009]
FIG. 6 is a relationship diagram of exercise intensity (oxygen intake), heart rate, cardiac output, and stroke volume (measured by Mitchell et al., 1971). FIG. 6 (A) shows the relationship of the one-minute cardiac output (blood flow) to the one-minute oxygen intake, and it is understood that the increase is in a substantially linear relationship. FIG. 6 (B) shows the relationship of the one-minute heart rate to the one-minute oxygen intake, which is also understood to increase in a substantially linear relationship. FIG. 6C shows the relationship of the stroke volume to the oxygen intake for 1 minute, and it is understood that the stroke volume does not increase so much after reaching the predetermined oxygen intake. In general, it has been found that when the exercise intensity of an oxygen intake of approximately 50% of the maximum oxygen intake is reached, the% of the maximum stroke volume reaches approximately 100%. In other words, when the exercise intensity reaches 50%, the stroke volume per stroke becomes a maximum value which is almost constant.
[0010]
FIG. 2 is a schematic block diagram of the display device of the present invention. The display device accommodates or arranges the control unit 14, the input unit 2, the battery 19 and the display unit 3, which are the heart, in the main body, and a pulsation sensor 12 and a speed sensor 13 (if necessary) outside the main body. When the display device is installed on a traveling device such as a bicycle, by detecting the speed of the traveling device such as a bicycle, the travel distance can be displayed as the amount of exercise, or the power of the control unit can be automatically switched on and off. Is possible). In the control unit 14, when the battery 19 is turned on, the personal information input from the input unit 2 is stored in the RAM 16 through the signal processing unit 17, and the signal processing unit 17 is input from the pulsation sensor 12. And a calculation unit 18 for calculating a necessary display signal based on a program stored in the ROM 15 from the signal acquired through the personal information. The display signal calculated by the calculation unit 18 is output to the display unit 3 to display the various information described above.
[0011]
3 and 4 are an overall side view and an enlarged view of a main part of a bicycle to which the display device of the present invention is attached. The main body composed of the input unit 2 and the display unit 3 in the display device 1 of the present invention described above is configured to be detachably mounted on the viewing position of the bicycle 20, preferably on the substantially middle part of the handlebar 21, If necessary, the display device can be removed and used for jogging or the like. In that case, as the pulsation sensor 12, a pulse detection sensor wound around the chest or wrist, an infrared sensor for detecting pulsation from blood flow fluctuations with fingers, and the like are used. As a power source for controlling the display unit and the control unit, a battery housed in the main body is used, or connected to a secondary battery or the like charged by a generator through a lead wire or the like. In the present embodiment, as shown in the enlarged view of FIG. 4, the pulsation is detected by detecting the potential difference between the electrodes 12, 12 respectively installed on the left and right grip portions of the handlebar 21 as the pulsation sensor 12. The detection means is configured using the characteristics that can be produced. Reference numeral 22 denotes a sensor cable for connecting between the main body and the pulsation sensor 12.
[0012]
FIG. 5 is a control flow chart in the display device of the present invention. More specifically, in step S1, various personal information (parameters) of the subject is input by the input units 4 to 7 in the input unit 2. Prior to the start of exercise, the predicted maximum oxygen uptake (VO2max) is calculated from the sex, age, and daily exercise amount based on such information, based on these pieces of information. In step S3, a predicted maximum stroke volume (SVmax) is calculated from sex, age, height, weight and daily exercise amount. In step S4, a predicted total blood volume (amount of blood in the subject's body: TBQ) is calculated from sex, age, height, weight, and daily exercise amount. These calculated data are stored in the RAM 16 as a storage device in step S6.
[0013]
When exercise is started in step S5, a current maximum value% (% VO2max) for the maximum oxygen intake is calculated from the current heart rate and age in step S7. That is, it is determined where the subject's current oxygen intake, that is, the exercise intensity is. Next, in step S8, the oxygen uptake (VO2) is calculated from the predicted maximum oxygen intake (VO2max) in steps S2 and S7 and the current versus maximum value% (% VO2max) for the maximum oxygen intake. In step S9, energy consumption is calculated from the oxygen intake (VO2) and displayed in step S10.
[0014]
When the current% maximum value relative to the maximum oxygen intake is calculated in step S7, based on this, the current% maximum value (% SVmax) relative to the maximum stroke volume is calculated in step S11. The That is, what percentage of the maximum stroke volume is the current stroke volume (when the exercise intensity reaches about 50% as described above, the maximum stroke volume is almost 100%. The calculated result is displayed on the exercise intensity display unit 10 in step S12. The exercise intensity display unit 10 (FIG. 1) has a fan shape, and the red zone 10B displays an excessive state (tight) with an exercise intensity reaching approximately 100% of the maximum stroke volume of approximately 50% or more. The indicator light below in the appropriate range 10A indicates that the exercise state is too light, and the indicator display in the appropriate range 10A close to the red zone 10B indicates that the exercise state is appropriate and comfortable. It is.
[0015]
In step S13, the stroke volume (SV) is calculated from the predicted maximum stroke volume (SVmax) and the current maximum value% (% SVmax) with respect to the maximum stroke volume. Next, in step S14, a one-minute cardiac output (COQ) is calculated and estimated from the stroke volume (SV) and the current heart rate (HR (now)). In step S15, the one-minute cardiac output is estimated. A cumulative cardiac output (TCOQ), which is a total cardiac output during exercise, is calculated from the cardiac output (COQ) and time. Further, in step S16, the blood circulation number is calculated and estimated from the predicted total blood volume (TBQ) and cumulative cardiac output (TCOQ) of the subject. In step S17, the cumulative cardiac output (TCOQ) in step S15 is displayed on the cumulative cardiac output display unit 9 in the display unit 3, and the blood circulation number in step S16 is displayed on the blood circulation number display unit 8. Is displayed.
[0016]
On the other hand, in step S18 as information that subjectively felt whether the subject's current exercise is tight, appropriate, or too easy after starting exercise based on the personal information of the subject input before the start of exercise. By depressing the comfort button, which is a subjective exercise intensity button, the process returns to step S7 to calculate the current% of the maximum oxygen intake relative to the maximum oxygen intake (data parameters that the subject knows as personal information, and exercise start The ratio of the current oxygen intake to the maximum oxygen intake is corrected and changed depending on whether the current load during exercise is comfortable or not even if there is a deviation from the parameter during exercise or during exercise.) It is possible to provide a learning function by adding correction. In other words, it was possible to learn physical fitness. Thus, the subject can easily understand the exercise intensity and the number of circulating blood in the blood, and can continue the exercise safely by accurately grasping the appropriate amount of exercise using the new index.
[0017]
As described above, the embodiments of the present invention have been described. However, within the scope of the present invention, the input format of the input unit (in addition to the input buttons, the touch panel format in the display unit, the menu selection format, etc.) Display format (LED display, LCD screen display, etc.) and arrangement of each display unit (the blood circulation rate display unit can be configured to display the cardiac output by switching operation), comfort button format ( One that is pressed when the exercise intensity is not comfortable, one that is provided with multiple selection buttons according to the exercise intensity, one that selects the exercise intensity with a slide knob steplessly, etc.), type of pulsation sensor (potential difference measurement) , Infrared measurement, pulsation detection, etc.) and its location (attachment position to a traveling vehicle such as a bicycle) and signal collection form (attached to the handlebar grip, or an infrared sensor installed at the grip end. Ri, the sensor may be used only gloves or finger cots were embedded) may be appropriately selected for operation form of each signal.
[0018]
【The invention's effect】
As described above in detail, according to the present invention, an input unit that inputs personal information of a subject, a pulsation sensor that detects a heartbeat or a pulse during exercise of the subject, and personal information from the input unit. A control unit including a calculation unit that estimates the stroke volume of the subject and counts signals from the pulsation sensor, and displays the cardiac output of the subject during exercise obtained by the control unit Rutotomoni provided a display unit, on the display unit, in addition to the cardiac output of a subject during exercise, cumulative cardiac output, by providing the body blood circulation times and exercise intensity display unit, was detected Based on the heart rate during exercise of the subject, based on the new information called cardiac output that is calculated and displayed based on personal information, the appropriate exercise amount appropriate for the individual is accurately grasped and exercise continues safely. In addition, you can exercise It can contribute to the maintenance of motivation and continuity start. In addition, the total amount of blood that has flowed during exercise and the number of blood circulations that have flowed through the body can be clearly identified, and the effects of exercise can be confirmed. Can be obtained.
[0019]
Further , the input unit for inputting the personal information of the subject, the pulsation sensor for detecting the heartbeat or pulse during the exercise of the subject, and the stroke volume of the subject are estimated based on the personal information from the input unit, A control unit including a calculation unit that counts a signal from the pulsation sensor, and a display unit that displays the cardiac output of the subject in motion obtained by the control unit, and the input unit or the display unit In addition, when the input means for inputting the subjective comfort level of the subject during exercise is installed and the stroke volume of the subject is corrected by the information from the input means, the detected subject It is possible to accurately grasp the appropriate amount of exercise suitable for the individual and continue the exercise safely with the new index of cardiac output that is calculated based on personal information and output and displayed from the heart rate during exercise it can Further, it is possible to contribute to the maintenance of motivation and continuity to begin motion. In addition, even if there is a discrepancy between the parameters of the data that the subject knows as personal information and the parameters at the time of starting or exercising, it is possible to input the maximum subjective comfort level during the exercise. It is possible to provide a learning function by correcting and changing the ratio of the current oxygen intake to the oxygen intake.
[0020]
In addition, when the display device is attached to the bicycle at the visual recognition position and the pulsation sensor is installed on the handlebar grip, the display device can be easily attached to the vehicle body during training by the bicycle and boarded normally. The heart rate during exercise of the subject can be easily measured, and the appropriate amount of exercise suitable for the individual can be determined by the extremely easy-to-understand index of cardiac output that is calculated and displayed based on the heart rate and personal information. It is possible to accurately grasp and to continue exercise by bicycle safely.
Further, when the pulsation sensor is constituted by a detecting means for detecting a potential difference between the electrodes respectively installed on the grip portions of the left and right handlebars, the weak potential difference between the left and right palms of the test passenger may be detected. The sensor structure is simplified.
Thus, there is provided a display device that is suitable for outdoor use and that enables clear and appropriate grasp of exercise intensity by adopting display contents of a new scale.
[Brief description of the drawings]
FIG. 1 is an overall plan view of an input unit and a display unit of an embodiment of a display device of the present invention.
FIG. 2 is a schematic block configuration diagram of the display device.
FIG. 3 is an overall side view of a bicycle equipped with a display device of the present invention.
4 is an enlarged view of a main part of FIG.
FIG. 5 is a control flow chart of the display device of the present invention.
FIG. 6 is a relationship diagram between heartbeat and exercise.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Input part 3 Display part 4 Gender input part 5 Age input part 6 Weight, height input part 7 Exercise amount input part 8 Blood circulation number display part 9 Cumulative cardiac output display part 10 Exercise intensity display part 10A Appropriate range 10B Red zone 11 comfort button (subjective comfort input means)
12 Beat sensor 13 Speed sensor 14 Control unit 15 ROM
16 RAM
17 Signal Processing Unit 18 Calculation Unit 19 Battery 20 Bicycle 21 Handlebar 22 Sensor Cable T Clock Unit (Oxygen Uptake Display Unit)

Claims (4)

An input unit for inputting the personal information of the subject, a pulsation sensor for detecting a heartbeat or a pulse during exercise of the subject, and estimating the stroke volume of the subject based on the personal information from the input unit and the pulsation a control unit including a computing unit for counting the signals from the sensor, Rutotomoni provided a display unit for displaying the cardiac output of a subject during exercise obtained by the control unit, on the display unit, during exercise In addition to the cardiac output of the subject, a display device comprising a cumulative cardiac output, the number of blood circulation in the body, and an exercise intensity display unit . An input unit for inputting the personal information of the subject, a pulsation sensor for detecting a heartbeat or a pulse during exercise of the subject, and estimating the stroke volume of the subject based on the personal information from the input unit and the pulsation a control unit including a computing unit for counting the signals from the sensors, provided a display unit for displaying the cardiac output of a subject during exercise obtained by the control unit Rutotomoni, the input unit or the display unit , by installing an input means for inputting subjective comfort of the subject during exercise, you characterized by being configured so as to correct the stroke volume of the subject based on information from the input unit table Indicating device. A bicycle, wherein the display device according to claim 1 or 2 is attached to a visual recognition position, and the pulsation sensor is installed at a grip portion of a handle bar. The bicycle according to claim 3 , wherein the pulsation sensor includes detection means for detecting a potential difference between electrodes respectively installed on the grip portions of the left and right handlebars.

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