JPH09197068A - Time measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a time measuring device which can measure time even when a user has run a predetermined distance without operating any switches. SOLUTION: When the number of steps is detected by a walking detection circuit, '1' is added to the value of a number-of-steps register (S45). Then, it is judged whether the value of (step width)×(number of steps) is equal to or larger than distance × (number of laps+1) (S46). When running distance is equal to a distance set by a user or its integer multiples, a stop watch time being measured is stored at a split time storage part in a RAM as a split time (S47).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a time measuring device for measuring the running time of a distance competition.

[0002]

2. Description of the Related Art Athletes such as long-distance races such as marathons and triathlons wear a wristwatch having a lap time measuring function, and at every predetermined distance (for example, 5 km) while running. By operating the switch on the wristwatch, the lap time is stored, and it is possible to check how the pace was distributed during running after the practice.

In order to measure the lap time by the method as described above, it is necessary to confirm the distance while traveling. On the day of the marathon event, signs such as 5 km and 10 km are provided, so you can see the timing to measure the split time and lap time, but in other cases, check the distance. I couldn't measure the time when I ran the course for practice because I had no means. This issue is cross-country
The same was true for other distance competitions such as.

Even if the distance can be confirmed, the switch must be operated each time the vehicle is running to measure the lap time, which is a troublesome operation. An object of the present invention is to provide a time measuring device capable of measuring a traveling time without operating a switch.

[0005]

A time measuring device according to the present invention comprises a step data storage means for storing preset step data, a step number detecting means for detecting the number of steps during running, and a time measuring means for measuring time. And a running distance calculation means for calculating a running distance from the step length data stored in the step data storage means and the step count data detected by the step count detecting means, and the running distance calculated by the running distance calculation means is predetermined. And a traveling time storage means for storing the time measured by the time measuring means as a traveling time corresponding to a predetermined distance when the distance is reached.

According to the present invention, when the running distance calculated from the stride data and the step count data reaches a predetermined distance, the time measured by the time measuring means is stored, so that the lap time or the like is measured. It is not necessary to operate the switch to operate, and the operation becomes easy. Further, even if the distance from the start point is unknown, the lap time or the like can be measured at each predetermined distance.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. The time measuring device of the embodiment is an electronic wrist watch having a function of measuring a lap time (time for each section) and a split time (elapsed time from the start). This electronic wristwatch counts the number of steps during running by setting the step length and the reference distance in advance by the user,
The running distance is calculated from the number of steps and the stride, and when the running distance reaches a preset distance, the split time is automatically stored.

FIG. 1 is a circuit block diagram of the electronic wrist watch of the embodiment. The clock signal generated by the oscillator 1 is frequency-divided by the frequency division / timing circuit 2 and output to the control unit 3.

The control unit 3 is a RAM for detecting the key input in the key input unit 5 and the step count data detected by the walking detection circuit 6 according to the control program stored in the ROM 4.
7, the alarm sound control circuit 8 is controlled, and an alarm sound of the alarm sound is emitted from the speaker 9. In addition, the control unit 3 calculates the running distance from the step count data detected by the walking detection circuit 6 and the preset step length data, and sets the stopwatch time when the running distance becomes a specific distance as the split time. It is stored in the RAM 7. Further, the control unit 3
Outputs the measured split time to the display driver 10 and displays it on the liquid crystal display device 11.

The walking detection circuit 6 is composed of, for example, an acceleration sensor, a movable contact, and the like, and detects the number of steps by detecting the acceleration due to the swing of the arm during running and the on / off of the contact. Here, the configuration of the register of the RAM 7 will be described with reference to FIG. In the figure, a mode register M is a register for storing a numerical value corresponding to the operation mode. M = 0 in the time display mode, M = 1 in the setting mode for setting the stride and distance, and M = 1 in the stopwatch mode. At this time, M = 2 is stored.

The flag F is a flag indicating whether or not the stopwatch is being measured. F = 1 is stored when the stopwatch is being measured, and F = 0 is stored otherwise. The stride register 21 is a register that stores stride data set by the user, and the distance register 22 is a register that stores a distance that serves as a reference for measuring the split time. For example, the distance register 22 has a section distance of "5 km".
When is set, the stopwatch time during measurement is sequentially set as the split time in the split time storage unit 27 described later every time the traveling distance becomes 5 km from the preset step length and the number of steps detected by the walk detection circuit 6. Remembered.

The step count register 23 is a register that stores the number of steps from the start detected by the walking detection circuit 6, and the pace register 24 is a register that stores the number of steps per minute set by the user. In the stopwatch process described later, the alarm sound is generated at the pace set in the pace register 24, so that the user can run at the target pace by running according to the sound.

The stopwatch measurement register 25 stores the elapsed time since the start of the stopwatch measurement, and the lap number register 25 stores the number of sections where the split time is measured. The split time storage unit 27 includes a plurality of storage areas that store the split time measured for each distance set by the user.

The current time counting register 28 is a register for storing the current time data measured by the time counting process, and the display register 29 is a register for storing the display data in each operation mode.

Next, an example of a display state when the operation mode is switched by operating the switch S1 will be described with reference to FIG. In the time display mode of M = 0, the same figure (1)
As shown in, the current date and time and "June 18, 10:50:00" are displayed. Switch S1 in this state
When is operated, the mode switches to M = 1 setting mode,
As shown in (2), the distance set at that time is "5 km".
And a stride of "1m20cm" and a target pace of "160"
"Steps / minute" is displayed. If switch S1 is operated in this state, it switches to the stopwatch mode of M = 2,
As shown in (3) of the same figure, the time from the start is “16:00” and the target lap time of 5km is “27: 3”.
"0 seconds" is displayed.

Next, the general operation of the embodiment will be described with reference to the flowchart of FIG. When a key input is detected in the halt state of step S1 of FIG. 4, the key processing of step S2 is executed.

The key processing will be described below with reference to the flowchart of FIG. First, it is determined whether or not the S1 key is operated. If it is the operation of the S1 key, the process proceeds to step S12 to add "1" to the value of the mode register M to switch the operation mode.

When the determination in step S11 is NO, that is, when the S1 key is not operated, it proceeds to step S13 and it is determined whether or not the S2 key is operated. When it is determined in this determination that the S2 key is operated, it is determined whether the value of the mode register M is "1", that is, whether the current operation mode is the setting mode. M
When the S2 key is operated in the setting mode of = 1, the next input numerical value is set in the distance register 22 of the RAM 7 as the section distance for measuring the split time.

When the value of the mode register M is determined to be M ≠ 1 in step S14 (NO in S14), the process proceeds to step S16 and it is determined whether or not the value of the mode register M is "2". When the value of the mode register M is determined to be "2" in this determination, that is, when the S2 key is operated in the stopwatch mode, the flag F is inverted. That is, in the stopwatch mode, S
Operate the 2 keys to start the stopwatch time measurement,
Alternatively, it can be stopped.

When it is determined in step S13 that the S2 key is not operated (S13, NO), the process proceeds to step S18, and it is determined whether or not the S3 key is operated. If the operated key is the S3 key, then the mode register M
Is "1", that is, whether or not the S3 key is operated in the setting mode is determined (S19).

When the S3 key is operated in the setting mode of M = 1, the next input numerical value is set as the running pace (steps per minute) in the pace register 24 of the RAM 7 (S20).

That is, in the setting mode, the S2 key is operated to set the section distance for measuring the time, and S3 is set.
You can operate the keys to set the pace. When the value of the mode register M is determined to be M ≠ 1 in the determination of step S19 (S19, NO), the process proceeds to step S21 and it is determined whether or not the value of the mode register M is "2". M
When the S3 key is operated in the stopwatch mode of = 2, it is determined whether the flag F is "0", that is, whether the stopwatch measurement is stopped. If F = 0 and measurement is stopped, the lap time is read (S23).

In this embodiment, in the stopwatch mode, the split time at each distance of 5 km, 10 km, 15 km ... Is stored in the split time storage unit 27 in order, so the split time of 5 km is read out first, and then the split time of 10 km is read out. By reading out the split time and subtracting the split time of 5 km from the split time of 10 km, the lap time of the second section is obtained and the lap time is displayed.

If it is determined in step S18 that the S3 key is not operated (S18, NO), the process proceeds to step S24 and it is determined whether or not the S4 key is operated. If the operated key is the S4 key, the process proceeds to step S25, and it is determined whether or not the mode register M is "1". When the S4 key is operated in the setting mode of M = 1, the numerical value to be input next is set in the step register 21 of the RAM 7 as step data (S26).

If the determination in step S24 is NO, that is, if the operated key is not the S4 key, the process proceeds to step S27 and it is determined whether or not the value of the mode register M is "2". S4 in stopwatch mode with M = 2
When the key is operated, whether the flag F is "0",
That is, it is determined whether or not the stopwatch time measurement is stopped (S28). If F = 0 in this determination, the stopwatch time is cleared (S29). That is, if the S4 key is operated while the stopwatch time measurement is stopped, the measured stopwatch time can be cleared.

If it is determined in step S24 that the S4 key has not been operated, the flow advances to step S30 to execute other key processing. Returning to FIG. 4, when the clock timing signal is detected in the halt state, the clock processing of step S3 is executed. In this time counting process, if one second has elapsed after counting the time counting timing signal, the current time counting register 2
The value of 8 is updated for 1 second. Next, it is determined whether or not the flag F is "1" (S4), and if the flag F = 1 and the stopwatch is being measured, the stopwatch process of step S5 is executed. Then, the current time, setting data, or stopwatch time is displayed according to the operation mode (S
6).

Next, the contents of the stopwatch process of step S5 described above will be described with reference to the flowchart of FIG. First, the stopwatch time is measured (FIG. 6, S41). Then, it is judged whether or not it is the sounding timing for running at the pace set in the pace register 24 (S42).
Is driven to report the pace sound (S43).

Next, it is judged whether or not the step count is detected by the step count detection circuit 6 (S44), and when the step count is detected, the value obtained by adding "1" to the value of the step count register 23 is stored in the step count register 23 (S45). ). Furthermore, the value obtained by multiplying the step length data stored in the step length register 21 and the step number data stored in the step number register 23 is the lap number register 2
The distance register 22 is added to the value obtained by adding "1" to the lap number of 6
It is determined whether or not it is equal to or larger than a value [step length × step number ≧ distance × (lap number + 1)] multiplied by the distance data of (S46). That is, it is determined whether or not the traveling distance has become a section distance set by the user or a value that is an integral multiple of the section distance.

If it is determined in step S46 that the traveling distance is the section distance set by the user or an integral multiple thereof, the stop time at that time is used as the split time and the split time storage unit 27 of the RAM 7 is used.
(S47). As a result, since the measurement of the split time of the distance set by the user or the distance which is an integral multiple thereof is completed, "1" is added to the lap number stored in the lap number register 26 (S48).

Note that the processing of step S49 of FIG. 7 is added after step S48, and the time difference between the traveling time when the user travels at the pace set by the user and the traveling time of the actually traveled pace. May be obtained and the time difference may be displayed.

For example, if the stride is set to 1 m20 cm and the running pace is set to 160 steps / minute, 16 steps per minute are set.
Since 0x1.2 = 192m will be run, the time to run 5km should be 5km / 192 = 26.04 minutes. However, in reality, the set pace cannot be kept and the time differs from the scheduled time. Therefore, by calculating and displaying the difference between the calculated traveling time and the actual traveling time, the user can recognize how slow or fast the current traveling pace is compared to the planned traveling pace. it can.

The above-mentioned embodiment is the case where the time measuring device of the present invention is applied to an electronic wrist watch, but it can also be applied to devices of other forms. Further, the measurement time is not limited to the split time, and the lap time may be measured.

[0033]

According to the present invention, the split time, lap time, etc. of a desired distance can be measured without operating a switch, so that the runner can concentrate on practice without using nerves to measure the traveling time.

[Brief description of drawings]

FIG. 1 is a circuit block diagram of an electronic wrist watch according to an embodiment.

FIG. 2 is a diagram showing a configuration of a register.

FIG. 3 is an explanatory diagram of a display state.

FIG. 4 is a flowchart showing a schematic operation of the embodiment.

FIG. 5 is a flowchart of key processing.

FIG. 6 is a flowchart of a stopwatch process.

FIG. 7 is a diagram showing a process of time difference calculation.

[Explanation of symbols]

 3 Control Unit 6 Walking Detection Circuit 7 RAM 21 Stride Register 22 Distance Register 23 Step Count Register 27 Split Storage Unit

Claims (3)

[Claims] 1. A step data storage means for storing preset step data, a step number detection means for detecting the number of steps, a time measuring means for measuring time, and step data stored in the step data storage means. A mileage calculation means for calculating a mileage from the step count data detected by the step count detection means, and when the mileage calculated by the mileage calculation means reaches a predetermined distance, the time measurement means A time measuring device, comprising: a running time storage unit that stores the measured time as a running time corresponding to the predetermined distance. 2. The traveling time storage means, when the traveling distance calculated by the traveling distance calculation means reaches a predetermined distance, sequentially stores the time measured by the time measuring means as a split time. The time measuring device according to claim 1, wherein: 3. A step data storage means for storing preset step data, a step number detection means for detecting the number of steps, a time measuring means for measuring time, and step data stored in the step data storage means. A mileage calculation means for calculating a mileage from the step count data detected by the step count detection means, and when the mileage calculated by the mileage calculation means reaches a predetermined distance, the time measurement means The measured time is stored as traveling time storage means for storing the traveling time corresponding to the predetermined distance, pace storage means for storing a preset number of steps per minute, and the stride data storage means for storing the time. The estimated travel time required to travel the predetermined distance is calculated from the stride data stored and the number of steps per minute stored in the pace storage means. Calculating the actual traveling time required to travel the predetermined distance from the step length data and the step number data detected by the step number detecting means, and calculating the difference between the estimated traveling time and the actual traveling time. A time measuring device comprising: a traveling time difference calculating means and a displaying means for displaying the time difference calculated by the traveling time difference calculating means.