JPS6133680A - Motion quantity measuring apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an exercise amount measuring device that detects an exercise pace through vibrations applied to the body during exercise and calculates an amount of exercise based on the exercise pace.

(b) Background of the Invention Recently, interest in health has increased, and many people take up running to strengthen the functions of their heart and lungs.

The type of exercise you do to maintain health depends on your age, health condition,
It is best to exercise in consideration of your physical strength, etc. Excessive exercise may actually harm your health, or you may end up becoming obese by ingesting a large amount of food because you are hungry after exercise, or conversely, you may develop anemia during exercise due to nutritional deficiencies. Sometimes it's scary.

Therefore, it is important to know the amount of exercise such as running, and several devices have been developed to measure the amount of exercise.

(c) Problems to be solved by the invention Momentum is generally expressed as the product of exercise intensity and exercise time, but many conventional momentum measurement devices often take short breaks (interruptions of exercise) during exercise. Since the configuration is such that the amount of exercise is calculated while ignoring the amount of exercise, there is a problem that the amount of exercise cannot be accurately measured.

Therefore, even with this type of conventional exercise amount measuring device, it is sufficient to stop and start the exercise frequently every time the exercise is interrupted. Operation is cumbersome.

(iv) Purpose of the Invention The present invention has been made in view of the above points, and an object of the present invention is to provide an exercise amount detection device that can accurately detect an amount of exercise without having to perform troublesome operations every time a person stops exercising.

In order to achieve this objective, the present invention detects the exercise pace based on the movement of the body during exercise, and when the exercise pace cannot be detected, it is determined that the exercise has stopped and the exercise time measurement operation is stopped, and then the exercise time measurement operation is stopped. When the exercise resumes, the exercise time measurement operation is started, and the exercise amount is calculated and displayed based on the exercise time and exercise pace thus measured.

(e) Examples The present invention will be described below based on the drawings, but before going into the description of the examples, a method for calculating the amount of momentum, which is the basis of the present invention, will be explained.

As mentioned above, the amount of exercise is expressed by the product of exercise intensity and exercise time, and one way to express the intensity of any physical activity such as sports, exercise, labor, etc. is the energy metabolic rate, which is expressed by the following formula. RM R (Rela-tive Mst
A method using the abolic rate is known.

Basal Metabolism The energy metabolic rate RMR during running is considered to be expressed by the following formula based on a large amount of experimental data.

(CV-D)/E Here, ■ is the average running speed of the exercise, C, D.

E is a constant determined from the following Table 1 based on the value of average running speed ■.

In Table 1, Dr. H. Cooper describes a method for calculating momentum based on RMR in his book rTRE ARROBIC3P.
rogratsfor Total Well Bei
ngJ (Evans), and the present invention uses that calculation method. According to this calculation method, the amount of exercise F+ during running is calculated according to the average running speed (vl) and the running distance (L,) based on the equation shown in Table 2 below.

Table 2 Average running speed vI and running distance L+ are calculated by the following formula.

L, = 0.0015x - (mile) where B is the running pace (seconds), G is the number of pace searches, L is the stride length (cll), and T is the running time (minutes).

On the other hand, the following equation may be used to express momentum in kcal units.

Momentum (kcal) -RMRXW XA XT÷60
--- (2) Here, W is body weight (kg), A is the age correction coefficient shown in Table 3, and T is running time (minutes).

Table 3 Next, embodiments of the present invention will be described based on the drawings.

FIG. 1 shows the appearance of a stopwatch incorporating the exercise amount measuring device according to the present invention, and shows the display section 1 of the display section W1.
Display A shows the amount of exercise (30 points) in the aerobics point display, display B shows the amount of exercise (2,500 calories) in the calorie display, and display C shows the amount of exercise (2,500 calories) in the display section IC. The measurement time (0:58:25) is displayed. The case 2 of the stopwatch is provided with four operating members, 2a is a start/stop button to start/stop time measurement of the stopwatch, 2b is a lap/reset button to display and reset the lap time, 2C is a correction digit selection button, and 2d is a cent button. Among these operation buttons, correction digit selection button 2
C and the cent button 2d are also used to set personal data, which will be described later.

FIG. 2 is a functional block diagram of an embodiment of the exercise amount measuring device according to the present invention, and is an example of a device that measures the amount of exercise during running.

In FIG. 2, reference numeral 3 denotes a motion sensor that detects the frequency of arm swinging during running, converts it into an electrical signal, and outputs it, and a vibration detector using a commercially available piezoelectric element is used. The structure of the vibration detector is that a weight made of a metal with high specific gravity and a piezoelectric element that generates an output voltage according to the amount of change in force are housed in a case, and this case is attached to the inner wall of the stopwatch case. It is something that Follows the movement of the wearer's arm,
When the force applied to the stopwatch is applied to the piezoelectric element via the weight, the piezoelectric element outputs a voltage signal at a level corresponding to the applied force.

4 is an amplification port ν which selects and amplifies a signal in a certain frequency band from among the signals output from the motion sensor 3, and 5 is a waveform that shapes the output of the amplifier circuit 4 and outputs it as a pulsed motion signal P. It is a shaping circuit.

Reference numeral 6 denotes an R-S flip-flop which outputs a pace search signal SC when set by a pulse signal T, which will be described later, and the amplifier circuit 4 and waveform shaping circuit 5 are made operable by this pace search signal SC. For example, 7 is 1/10
a reference signal generation circuit that generates a reference signal N such as 0 seconds;
8 is operation button 2 provided on the outside of the stopwatch
Switches SWI to S that are turned on and off by a to 2d
Start signal ST to start time measurement by the stopwatch by Ws, stop signal SP to stop time measurement, lap signal LA to display lap, reset signal R1 to reset the coefficient content of the first counter 9, stride length 2 weight 1 of the wearer This is a switch block that outputs a personal data setting signal K for setting personal data such as age.

Reference numeral 9 denotes a first counter (STC) that measures the elapsed time from starting timekeeping with a start signal ST output from the switch block 8 in response to the operation of the operation buttons 2a to 2d until stopping timekeeping with a stop signal sp. Time data D is output.

Further, the first counter 9 can display intermediate elapsed data using the ramp signal LA, and reset the counted contents using the reset signal R.

10 is a timer circuit (TM) that counts the reference signal N in synchronization with the start signal ST or wrap signal LA and outputs the pulse signal TI at every predetermined time interval (for example, 2 minutes).
1). This is done in consideration of saving power consumption by the circuit, especially the amplifier circuit 4, and as described later, a pace search signal SC for a certain period of time is generated based on this pulse signal T+, and the exercise signal P is sampled to collect base data. It is intended to.

Reference numeral 11 denotes a second counter (STM) for measuring movement duration, which starts counting the reference signal N after it returns to zero in synchronization with the start signal ST, and stops counting in response to a stop signal sp or a movement stop signal H5, which will be described later. Outputs lucky hour data DT.

Reference numeral 12 denotes a search number counter (SCN) that counts a measurement end signal P outputted from a signal counter 14 to be described later, counts the number of pace search executions, and outputs the result as search number data P, and is reset by the start signal ST. .

13 determines whether or not the time interval of a series of exercise signals P output from the waveform shaping circuit 5 during the pace search period, that is, the running pace, is within a preset range, and only when it is within the set range, the exercise signal P is Output as Po,
This is a signal selection circuit that determines that running has stopped when it is outside the set range and outputs an exercise stop signal Hr. A detailed example of the circuit is shown in FIG.

As shown in FIG. 3, the signal selection circuit 13 includes three timer circuits TM2. TM3. TM4 and R-S for operation control
The flip-flop 13a, the pulsing circuit 13b, and the A
ND gates 13c, 13d and OR gates) 13e, 13
f, 13g. The operation of this signal selection circuit 13 will be explained with reference to FIG. 4 after explaining the overall configuration.

14 is a signal counter that counts the movement signal P° output from the signal selection circuit 13 during the pace search period, and outputs a measurement start signal P when the first movement signal P′ is input;
When the fifth movement signal P' is input, the measurement end signal Ps
Output.

15 is a counter that counts the reference signal N from the measurement start signal P1 to the measurement end signal P from the signal counter 14 and outputs running pace data D. This counter 15 is reset and started with the measurement start signal P, and stops its counting operation when the measurement end signal P or the motion stop signal OLD is input.

16 is a counter, and a pace data adder which adds the running base data Ds outputted from 15 and outputs it as pace addition data D4, which is reset by the start signal ST.

Reference numeral 17 denotes an average pace calculation means for calculating average running pace data DS from the pace addition data D4 outputted from the pace data adder 16 and the search number data P outputted from the -ch number counter 12.

18 is the correction digit selection button 2c! 8 and set button 2d
This is a personal data storage means for storing the stride length datum 1 weight data W9 age data Y set by the personal data setting signal K output from the switch block 8 by operating the switch block 8.

19 multiplies the average pace data D calculated by the average pace calculation means 17 and the step length data L stored in the personal data storage means 18 to obtain average running speeds V and V, (V is min/m, V , is a speed calculation means that calculates (in units of miles/hour). In addition, average pace data D
5 is less than a reference value (for example, 100 per minute), the pace correction means 20 doubles the average pace data. This is because when running, some people take a rhythm with one leg at a time, while others take a rhythm with both feet alternately. In this case, the vibration detection output from the motion sensor 3 is as shown in FIG. 5. Figure 5 (a) is a person who takes rhythm with one foot, (b)
is the output waveform of the amplifier circuit 4 of a person who takes rhythm with both feet. In such a case, since the former pace data is detected to be half of the latter pace data, it is corrected to be twice as much to make it the correct pace data.

21 is the running distance @1- using the average running speed ■1 and the exercise time data DT from the second counter 11.
This is a distance calculation means that calculates +.

22 stores the constants C, D, and E in Table 1 and the age correction coefficient A in Table 3, and the average running speed V calculated by the speed calculation means 19 and the age stored in the personal data storage means 18 are stored. This is a calculation constant selection means for selecting constants C, D, E and age correction coefficient A necessary for calculating the amount of momentum from data Y.

23 is the average running speed■1 and running distance iI! L
The amount of exercise F1 is calculated using equation (1) selected from Table 2 based on I, and the amount of exercise (kcal) K expressed in terms of calories consumed using equation (2).

(hereinafter referred to as calorie consumption).

Reference numeral 24 denotes an exercise amount integrating circuit which adds 1 to the two amounts of exercise F calculated by the exercise amount calculating means 23 and the calorie consumption, and outputs them as the cumulative amount of exercise F and the cumulative calorie consumption as 2, respectively.

25 is a display switching circuit which passes through the amount of exercise F+ calculated by the amount of exercise calculation means 23 and the calorie consumption during exercise, but when the stop signal SP is input, the amount of exercise and calorie consumption K up to that point are passed through.

2 is blocked, and the cumulative amount of exercise F2 outputted from the amount of exercise integration circuit 24 and the cumulative amount of consumed calories are switched to pass.

26 is a display drive circuit for displaying the elapsed time data D and the amount of exercise F+ and calories consumed from the display switching circuit 25, or the cumulative amount of exercise Ft and the cumulative calories consumed Kt on the display sections 1a, lb, and lc of the display device 1. It is.

27 is a pace data adder 16, an average pace calculation means 1
7. Calculation control means for controlling the operation timing of the speed calculation means 19, the distance calculation means 21, and the momentum calculation means 23,
When the measurement end signal P is input, the control operation is started, and an operation prohibition signal H is generated which prohibits the switch block 8 from functioning even if the operation buttons 23 to 2d are operated while these calculation means are in operation. Output.

The above is a general description of the exercise amount measuring device, and next, the signal selection circuit 13, which plays an important function in the present invention, will be described in detail.

In FIG. 3, when the timer circuit TM2 inputs the pulse signal T1 to its start terminal ST, the timer circuit TM2 outputs 5 pulse signals to its terminal Q.
The timer circuit TM3 outputs "L" level (iTz) for only 250 m seconds when the start terminal ST goes to "H" level while its reset terminal R is at "L" level. "Outputs a level signal T.

The setting time of 5 seconds for the timer circuit TM2 is provided to eliminate the influence of noise that is likely to occur when the amplifier circuit 4 starts operating, and the setting time of 250 msec for the timer circuit TM3 is provided for the movement signal. This is provided to eliminate the influence of chattering noise associated with

On the other hand, the reset terminal R of the timer circuit TM4 is 1L.
Reset/start terminal R-3T when it is at level
When it reaches the 1H" level, it is momentarily reset and then starts, outputting the "H" signal T4 for 1 second from the terminal Q, but within the set time of 1 second, the reset/start terminal R-5T becomes " When it reaches the "H" level, it is reset again and restarted. Then, when one second passes without restarting, at the end of that one second, a carrier pulse H is output from the carrier terminal C. This carrier pulse H1 causes the above-mentioned movement. It's a stop signal.

Next, the circuit operation of the signal selection circuit 13 will be explained with reference to FIG.

As an initial condition of this signal selection circuit 13, the operation control R
- Since the terminal Q of the S flip-flop 13a is at the "H" level, the reset terminals R of the timer circuits TM3 and 7M4 are at the "H5 level" and are held in the non-operating state.At this time, the output signal of the timer circuit TM2 T,
is at H” level. Therefore, at this time, AND gate 1
3C is opened by the signal T2 of the timer circuit TM2, but since the AND gate 13d is closed by the timer circuit TM4, the movement signal P is blocked by the AND gate 13d and is not output as P'.

(b) Now, in Figure 4, the period of no exercise t
, when a pulse signal T for pace search is input in this state, R- for operation control is input.
Since the S flip roller 113a is set and the output of the terminal Q is inverted from the previous "H" level to the "L" level, the reset terminals R of the timer circuits TM3 and 7M4 become "L" level, and both timer circuits TM3 and 7
M4 becomes ready for operation.

On the other hand, the timer circuit TM2 is started by the pulse signal TI, and its output signal T remains at the 1L'' level for 5 seconds, closing the AND gate 13C. After 5 seconds, the signal Tt
When P rises, the signal selection start signal P is sent from the pulse generator 13b.
, is output, and the timer circuit TM4 is momentarily reset and then started. At this time, the AND gates 13C and 13d are opened according to the output conditions of the timer circuits TM2 and 7M4, respectively, so the condition is for the exercise signal P to pass through, but since no exercise, that is, running is being performed, the exercise signal P does not exist, so P'' is not output.

When one second elapses in this state, the operation of the timer circuit TM4 is completed and the AND gate 13d is closed, at the same time a motion stop signal H1 is output from the carrier terminal C. Since this motion stop signal Ht resets the R-S flipflop 13a via the OR gate 13e, the signal selection circuit 13
returns to a non-operating state, and one signal selection operation is completed.

(b) The next short period of exercise t! In this case, only one exercise signal P is output as a result of a very short period of exercise (for example, one minute).

As in case (a) above, the signal selection circuit 13 causes the output Tt of the timer circuit TM2 to be "L" for 5 seconds due to the pulse signal T1 from the timer circuit 10. When the signal selection start signal P0 is output from the pulse aperture 1113b at the end of these 5 seconds, the timer 4 circuit TM4
An “H” signal is output from the Q terminal for only one second. Q of timer circuit TM4 5 seconds after input of pulse signal T1
If the exercise signal P is input while the terminal is at the "H" level, the AND gates 13c and 13d are opened according to the output conditions of the timer circuits TM2 and 7M4, so the exercise signal P is output from both AND gates 13c. , 13
The motion signal P that has passed through the AND gate 13c is input to the timer circuit TM4 via the OR'' gate 13g, so the timer circuit TM4 is reset to -H and restarted. The Q terminal again outputs a signal T at the H'' level for one second.

On the other hand, the motion signal P that has passed through the AND gate 1-13c is also input to the start terminal ST of the timer circuit TM3, so the timer circuit TM3 receives the "L" signal T for 250 milliseconds,
Output. Thereafter, since the motion signal P does not exist, the timer circuit TM4 outputs a signal from the Q terminal to "L" when one second has elapsed after the input of the motion signal P, and the carrier terminal C indicates that the motion has stopped. A motion stop signal HI is output. The motion control R-S flip-flop 13a is reset by this motion stop signal H, and its Q terminal becomes "H". As a result, timer circuits TM3 and 7M4 are both reset, and the signal selection circuit 13 operation is completed.

If only one movement signal P is output after a very short period of movement as described above, movement-based detection is impossible, and it is determined that no movement is being performed.

(c) Considering a period t during which exercise is performed continuously, in this case, a series of exercise signals P are output at fixed time intervals as a result of detection by the exercise sensor 3.

When the pulse signal TI is input and the set time of 5 seconds by the timer circuit TM2 ends, a signal selection start signal P is output from the pulse generator 13b.

The timer circuit TM4 starts after being reset by this signal selection start signal PY, and "H" is output from the Q terminal for 1 second.
" signal t4 is output. Then, when the first motion signal P is input within this one second, at this time, AND gate 1
Since both A N D' gates 3c and 13d are open, the motion signal P passes through both A N D' gates 13c and 13d and is output as P'. At the same time, the motion signal P passing through AND gate 13C is applied to timer circuits TM3 and 7M4.
Therefore, the output signal T of the timer circuit TM3.

is “L” for 250 milliseconds.The first motion signal P
When the second movement signal P is input within 1 second after 250 milliseconds have elapsed, which is the set time of the timer circuit TM3, the AND gates 13C and 13d are open at this time, so the movement signal P is the result of the AND of both of them. Gate 13C
, 13d and output as P'. At this time, the circuit operations of timer circuits TM3 and 7M4 are the same as when the first motion signal P is input, and timer circuit TM3
The timer circuit TM4 outputs a millisecond "L" signal T.
After being reset to -H, it restarts and outputs a ``H'' signal T for 1 second.Then, within 1 second, the third movement signal P is input, and within 1 second after that, the fourth movement signal P is input. Then, it operates in exactly the same way and these motion signals P become P
′ is output sequentially.

Similarly, if the fifth motion signal P is input within 1 second after the input of the fourth motion signal P, this P will be output as P'', but the signal counter 14 at the next stage will output the fifth motion signal P. When it counts, it outputs a measurement end signal P. When the signal selection circuit 13 receives this measurement end signal ps, the operation control flip-flop 13a is reset and its Q terminal becomes "H" level.As a result, Timer circuit TM3
Then, 7M4 is brought into the reset state, thereby ending the operation of the signal selection circuit 13.

As can be seen from the time chart shown in FIG. 4, when the motion stop signal H1 is output from the signal selection circuit 13, the second
The operation of the counter (STM) 11 stops. In this way, the second counter (STM) 11 starts its operation in response to the start signal ST or the exercise signal P (P'') and stops its operation in response to the stop signal SP or the exercise stop signal H1, so that exercise, that is, running, is not performed. Since the counting operation is performed only when it is determined that the movement is present (the counting operation period is indicated by diagonal lines), accurate exercise time (DT) can be measured.

The stopwatch of this embodiment has a movement sensor 3 built into the case, and an amplifier circuit 4, a waveform shaping circuit 5, a reference signal generation circuit 7, a one-chip microprocessor sensor for performing various calculations and control, and a memory (second (shown enclosed by a chain line in the figure), etc., are configured as an IC circuit and built-in.
A display device 1 is provided externally.

Since the calculation for measuring the amount of exercise according to this embodiment is performed by a microprocessor according to a predetermined program, the detailed calculation operation will be described later using the flowchart shown in FIG. will be briefly explained.

Prior to measuring the amount of exercise, it is first necessary to store personal data, and for this purpose a personal data setting signal K is output from the switch block 8 by operating the operation buttons 2a to 2d.

As a result, the user's step length data L2 weight data W1 age data Y are stored in the personal data storage means 18.

Next, the user presses the start/stop button 2a on the switch block 8 at the same time as starting running. Thereby, the switch block 8 outputs a start signal ST, and this start signal ST is input to the stopwatch first counter 9 to start counting the stopwatch, that is, counting the reference signal N.

Furthermore, by simultaneously inputting the start signal ST to the second counter 11, the second counter 11 starts counting the reference signal N after returning to zero. In this state, the first counter 9 outputs the elapsed time data D to the display drive circuit 26, and the elapsed time is displayed on the display section 1c of the display device I. Then, when the first counter 9 is in a measurement state, that is, when the user is running, the motion sensor 3 outputs a signal in accordance with the arm swinging motion. On the other hand, when the first counter 9 starts counting, the timer circuit 10 starts counting the reference signal N, and outputs the pulse signal T at predetermined time intervals (for example, every two minutes).

Output. This pulse signal T1 is then transmitted to the amplifier circuit 4.
and makes the waveform shaping circuit 5 ready for operation.

The purpose of performing the pace search at predetermined time intervals in this manner is to save power in consideration of the large power consumption of the amplifier circuit 4. The pulse signal TI is also input to the signal selection circuit 13 to instruct the start of pace search operation. The circuit operation of the signal selection circuit 130 has been described in detail with reference to FIGS. 3 and 4, so it will be briefly described below. However, when the signal selection circuit 13 receives the pulse signal T, a predetermined period of time has elapsed from that point. After (for example, 5 seconds), the signal selection start signal P0 is output from the sensor pulsing circuit 13b, and then the motion signal P obtained by correctly amplifying the output of the motion sensor 3 is received.

Then, the signal selection circuit 13 sets the pulse interval of the motion signal P to a predetermined minimum time (for example, 250 m5ec) and a predetermined maximum time (for example, 1 second), and selects the pulse interval after the motion signal P can be accepted. Regarding the first motion signal P input within one second and the motion signal P input thereafter, only those motion signals P whose pulse interval time is 250 m5ec or more and within one second are output. If there is no input even after the predetermined maximum time has elapsed, a motion stop signal H
, is output. Here, when the motion stop signal H2 is output, the second counter 11 stops counting, and the counter 15 stops counting. That is, when the user's exercise is weak or when the user interrupts the exercise without stomping the stopwatch, the second counter 11 is stopped. The timer circuit IO generates a pulse signal T1 every predetermined time (for example, 2 minutes) in synchronization with the start signal ST of the first counter 9.
On the other hand, the switch block 8 outputs the wrap signal LA
In synchronization with this, the pulse signal TI is output, and at the same time, the timer of the timer circuit 10 is reset to zero and started. Therefore, the pulse signal T from the timer circuit 10 is the start signal S of the stopwatch.
It is outputted every two minutes in synchronization with T, and is outputted in synchronization with the wrap signal LA and every two minutes in synchronization therewith. Here, if the second counter 12 is in a state where the measurement is interrupted by the movement stop signal H1, the pace search is restarted by the next pulse signal T1, and if the movement signal P is manually input within a predetermined time, The signal selection circuit 13 cancels the output of the movement stop signal HI, and the second counter 11 restarts the measurement. The motion signal P° that has passed through the signal selection circuit 13 is input to the signal counter 14. The signal counter 14 outputs a measurement start signal P when the first motion signal P is input, and outputs a measurement end signal P when the fifth motion signal P is input. On the other hand, the search number counter 12 returns to zero in response to the start signal ST of the stopwatch, then counts the measurement end signal P, and obtains the search number data P.

Output. Further, the counter 15 measures the time interval between the measurement start signal P and the measurement end signal P, and outputs the measurement data as running pace data D every time the measurement ends. This pace data D.

are input to the pace data adder 16, and the successively added data D4 is stored. Next, in the average pace calculating means 17, the average pace data D of the back hit is calculated from the data D4 from the pace data adder 16 and the search number data P6.
Calculate 5. The calculated average pace data D is determined by the pace correction means 20, and the average base data D is 1.
If it is less than 00, double it. The average pace data D thus calculated is multiplied by the step length data L set as personal data to calculate the average running speed V or Vl, and this average running speed V or
The running distance L1 is calculated from the exercise time DT from the counter 11.

Next, the amount of exercise calculation means 23 calculates the amount of exercise F+ based on the amount of exercise calculation formula (1) selected from Table 2 according to the average running speed V+ and the running distance L1 calculated above. Using W and the age correction coefficient A, the calorie consumption KI is calculated based on equation (2). Operation prohibition signal Hz that prohibits the function of switch block 8 while calculating the amount of exercise F1 and consumed calories KI
is output from the calculation control means 27. The amount of exercise F calculated in this way and the calories consumed are calculated by the display drive circuit 26.
are displayed on the display units 1a and 1b of the display device 1 via the respective display units 1a and 1b.

Next, the operation of measuring the amount of exercise according to the present invention will be explained according to the flowchart of FIG. In the following description, the first counter 9 for measuring elapsed time will be referred to as STC, and the timer circuit 10 for setting a pace search cycle (2 minute intervals) will be referred to as TM.
I. The second counter 11 that measures the exercise duration is STM.
, the search number counter 11 is assumed to be SCN.

First, in step 1, press the lap/reset button 2
The first counter STC is reset by operating b to reset the stopwatch.

The timer circuit TMI, three timer circuits TM2 configuring the signal selection circuit 13. TM3. Reset TM4. At this time, the pace search signal SC, which puts the amplifier circuit 4 into operation, is also set to "L".

Next, in step 2, the momentum F1. Integral motion iiF
g, calorie consumption 7. Reset 2 to the cumulative calorie consumption.

In step 3, the display data on each display section of the display device l of the stopwatch is rewritten. Display A on the display section 1a is the amount of exercise FI8 Display B on the display section 1b is the burned calories 11 Display C on the display section 1c is the first counter S
Rewrite to the contents of TC.

Steps 4, 5 and 6 are personal data setting mode, and by first pressing the correction digit selection button 2c, the personal data input state is entered.

Step 4 is a step of setting stride length data as personal data. First, a standard stride length of 100 cm is displayed on the display section 1a.
is displayed in a flashing manner, and the next age group (twenties) to be set is displayed on the display section 1b.

In this state, the user operates the operation button 2d to sequentially shift the stride length displayed on the display section 1a to set the data of his/her own stride length.

Step 5 is the step of setting the age data as personal data.Press the correction digit selection button 2C again to flash the age (20s) displayed on the display section 1b, and the next set should be set on the display section 1a. Weight (standard weight 60
kg). In this state, the era data Y is set by operating the operation button 2d to correct the era displayed on the display section 1b to the user's own era.

Step 6 is a step for setting weight data as personal data, and by pressing the correction digit selection button 2C, the display section 1a
The user's standard weight of 60 kg is displayed in a flashing manner, and by operating the cent button 2d in this state, the weight displayed on the display section 1a is sequentially shifted to set the data of the user's own weight W.

At this point, start/stop button 2a as soon as you start exercising.
Press to start measuring the amount of momentum. At this time, a start signal ST is output from the switch block 8.

In step 7, the first counter STC starts, and at the same time, the second counter STM starts after being reset,
Furthermore, the pace addition data D4 outputted from the pace data adder 16, the search number data P outputted from the search number counter 11, the calorie consumption to 1, and the amount of exercise F are reset.

Next, in step 8, the display A on the display section 1a is set to Fl, the display B on the display section 1b is set to F1, and the display C on the display section IC is set to the count content of the first counter STC. Step 9
Now, reset the timer circuit TMI and start.

In step 10, it is determined whether there is a lap operation, and if there is a lap operation, the display C on the display IC is displayed in step 12.
is set as the lap time, and if there is no lap operation, it is determined in step 11 whether the elapsed time of the timer circuit TM1 is 2 minutes or more. As a result, if the elapsed time is 2 minutes or more, the process proceeds to step 13, where the timer circuit 1'M1 is reset and restarted, and if the elapsed time is less than 2 minutes, steps 10.11 are repeated until the time reaches 2 minutes.

At this point, the pace search operation begins.

In step 14, the pulse signal T output from the timer circuit TMI at 2-minute intervals causes the flip-flop 6 to
A pace search signal SC is output by cents. At the same time, the timer circuit TM2 of the signal selection circuit 13 is reset and started. However, the signal selection circuit 13
prohibits acceptance of the motion signal P for the 5 seconds set by this timer circuit TM2, and resets the signal counter 14 in preparation for the next coefficient by the signal selection start signal P0 output from the signal selection circuit 13. .

In the next step 15, it is determined whether 5 seconds, which is the set time of the timer circuit TM2, has elapsed or not, and when it has elapsed, in step 16, the display C on the display section 1c is changed to the measurement data of the first counter STC. When the display C is a lap time display, the lap display is automatically canceled and the normal measurement data of the first counter STC is displayed.

In step 17, the inhibition of acceptance of the exercise signal P is canceled, and the timer circuit TM4 is reset and started by the signal selection start signal P0.

In steps 18 and 19, it is determined whether or not the exercise signal P is input before one second, which is the set time of the timer circuit TM4 of the signal selection circuit 13, has elapsed.

When the set time of 1 second of the timer circuit TM4 has elapsed, the process proceeds to step 23, and the second counter STM, which measures the duration of the exercise, is stopped by the exercise stop signal H1 outputted from the timer circuit TM4 when 1 second has elapsed.

Subsequently, in step 24, the timer circuits TM4 and 7M3 are reset to prohibit acceptance of the exercise signal P, and the flip-flop 6 is reset to set the pace search signal SC to "L".

This ends the pace search operation and returns to step 9.

When the motion signal P is received in step 19, it is determined in step 20 whether or not the second counter STM is in operation. That is, it is determined whether or not the second counter STM is stopped because the exercise signal P does not exist in the previous pace search (no exercise is performed), and if it is stopped, the second counter STM is set at step 21. Let it start.

Proceeding to step 22, the timer circuit TM3 of the signal selection circuit 13 is once reset and started, and furthermore, the timer circuit TM4 is stopped and input of the exercise signal P is prohibited.

Next, in step 25, the number PN of movement signals P is counted by the signal counter 14, and in step 26, it is determined whether the counted value PN is the first signal or more. As a result, when PN=1, the counter 15 is
Reset and start.

In step 28, the set time 25 of the timer circuit TM3 is
It is determined whether 0 milliseconds have elapsed or not, and if so, the timer circuits TM3 and 7M4 are stopped in step 29 and the process returns to step 17. In this way, the motion signal P that is input after 250 milliseconds set by the timer circuit TM3 and before the 1 second set by the timer circuit TM4 is accepted.

In this way, the operations from step 17 to step 29 are performed 4 times.
Repeat for two motion signals. During this time, the process proceeds from step 26 to step 30, and then proceeds to step 28 without passing through step 27.

When the fifth movement signal P is input, the count value PN of the movement signal P by the signal counter 14 becomes 5, so the process proceeds to step 31 and the timer circuits TM3 and 7M4 are stopped.

Furthermore, in step 32, the counter 15 is stopped, the R-S flip-flop 6 is reset, and the pace search signal SC is changed to ul and lebel. Also, the search number counter SCN is incremented by one.

In step 33, the pace data adder 16 adds the running pace data D up to that point to create pace addition data D4.

The momentum will be calculated in the next step and thereafter.

First, in step 34, the count contents of the second counter STM at that time are set as exercise time data DT, and then in step 3
5, the average pace calculating means 17 converts the pace addition data D4 outputted from the pace data adder 16 to the search number data P outputted from the search number counter SCN.
Divide by 6 to calculate average pace data D.

In step 36, the average pace data D calculated in this way is
Discriminate the level of s. That is, the average pace data D
, is larger than 2.4 seconds, the pace correction means 20 corrects the average pace data D by half in step 38. In other words, when the average pace corresponds to less than 100 steps per minute, it is determined that one out of every two steps is due to the habit of arm swinging during running, and the pace is corrected by twice. .

In step 37, the speed calculating means 18 calculates the average running speed V1 and ■ from the average pace data D and stride length data L, and the distance calculating means 21 calculates the average running distance HLI from the average running speed V1 and exercise time DT. In step 39 of calculating, step 3
One of the four calculation formulas shown in Table 2 is selected from the average running speed vI and average running distance calculated in step 8, and the amount of exercise is calculated by the amount of exercise calculating means 23 in step 40.

Step 41 is a step provided due to the limitations of the display device of the stopwatch, and it is determined whether the amount of momentum F is 299 or more or less. (step 42).

Next, in step 44, based on the age data Y among the personal data stored in the personal data storage means 18, the calculation constant selection means 22 calculates the age correction factor A from Table 3.
, and based on the average running speed V calculated by the speed calculation means 19, constants C, D,
Select E.

In step 45, the already selected constants C1D, E
From the average running speed V and the energy metabolic rate RMR
is calculated, and further, using the weight data W2, age correction factor A, and exercise time DT, which are set as personal data, the consumed calories are calculated from the above-mentioned formula (2). In step 46, the calculated calorie consumption Kl is converted into an integer K in accordance with the capacity of the display device.

In step 47, it is determined whether or not the second counter STC is in operation. If it is in operation, in the next step 48, display A on the display section 1a is changed to point display of the amount of exercise (F
+ ), display B on the display section 1b is set to display the amount of exercise (calorie consumption) (KI).

In step 49, start/stop button 2a
If there is no stop operation, the process returns to step 10, and if there is a stop operation, the stop signal ST is output, so in the next step 50, the first counter STC and the timer circuit TMI
is stopped, and the process returns to the first step 34 of momentum calculation. Thereafter, the process passes through steps 34 to 46 and proceeds from step 47 to step 51.

In step 51, the exercise amount integrating circuit 24 integrates the exercise amount F and the consumed calories by 1 to calculate the cumulative exercise iit p z and the cumulative calories consumed by 2.

In step 52, the display is switched by the display switching circuit 25 to display the cumulative amount of exercise F2 up to that point as display A on the display section 1a, and display 2 for the cumulative amount of calories consumed up to that point as display B on the display section 1b.

Although the above-mentioned embodiment incorporates the exercise amount measuring device according to the present invention into a stopwatch, it is of course possible to configure the present invention as a single exercise amount measuring device.

Furthermore, in addition to measuring the amount of exercise during running as in the embodiment, the exercise amount measuring device according to the present invention can also be applied to measuring the amount of exercise of other exercises such as jumping rope and swimming by changing the calculation formula for the amount of exercise. .

(v) As described in detail, in the present invention, the exercise pace is detected based on the movement of the body during exercise, and when the exercise pace cannot be detected, it is determined that the exercise has stopped and the exercise time measurement operation is performed. When the exercise stops and then resumes, the exercise time measurement operation is started, and the exercise amount is calculated based on the exercise time and exercise pace thus measured. is eliminated, an accurate exercise time is measured, and the amount of exercise is calculated based on this exercise time, so an extremely accurate amount of exercise can be obtained. Since power consumption can be saved by detecting the pace of exercise during exercise at regular time intervals, it is preferable to incorporate the exercise amount measuring device according to the present invention into a stopwatch or wristwatch.

Further, the present invention focuses on the fact that the exercise pace differs depending on the person from an ergonomic point of view, and by doubling the exercise pace according to the value of the exercise pace, it becomes possible to accurately calculate the amount of exercise.

According to the present invention, the amount of exercise you have done is accurately displayed in units of aerobic points or units of calories, so you can know the optimal amount of exercise according to your age, physical strength, and health condition, and avoid excessive exercise. It is possible to prevent excess or deficiency in nutritional intake, which is preferable in terms of health management.

[Brief explanation of drawings]

FIG. 1 is an external view of an embodiment of a stopwatch incorporating the exercise amount measuring device according to the present invention, FIG. 2 is a functional block diagram of an embodiment of the exercise amount measuring device according to the present invention, and FIG. FIG. 4 is an example of a detailed circuit configuration diagram of the signal selection circuit shown in FIG. A) is a waveform diagram of the movement signal of a person taking rhythm with one leg, l...stopwatch display device, 23-2d...
- Operation button, 3... Movement sensor, 7... Reference signal generation circuit, 8... Switch block, 9... First counter. 10... Timer circuit, 11... Second counter, 1
2... Search number counter, 13... Signal selection circuit, 14... Signal counter, 15... Counter, 16
... Pace data adder, 17... Average pace calculating means, 18... Personal data storage means, 19... Speed calculating means, 2°... Pace correction means, 21... Distance calculating means , 22... Calculation constant selection means, 23... Momentum calculation means, 24... Momentum integration means, 25...
Display switching circuit, 2G...display drive circuit.

Claims (4)

[Claims] (1) Exercise time measuring means for measuring the duration of exercise, exercise detection means for detecting the movement of the wearer's body and generating an exercise signal, and measuring the time interval of the exercise signal to determine the duration of exercise. pace detection means for detecting the pace; personal data recording means for storing at least the stride length of the wearer; determining means for determining the presence or absence of the exercise signal; It is characterized by having an exercise amount calculation means for calculating the amount of exercise and a display means for displaying the amount of exercise, and configured to control the time measurement operation of the exercise time measuring means based on the determination result of the determination means. Momentum measurement device. (2) The exercise amount measuring device according to claim 1, further comprising sampling means for generating a sampling signal at predetermined time intervals, and wherein the determining means performs an operation of determining the presence or absence of an exercise signal based on the sampling signal. (3) Claim 1, wherein the personal data storage means further includes means for storing weight data and age data.
The exercise amount measuring device described in Section 1. (4) The exercise amount measuring device according to claim 1, wherein the exercise amount calculating means calculates calories by multiplying the exercise amount by the weight data and age data as a correction coefficient.