JPH02126184A - Stop watch device - Google Patents

Abstract

PURPOSE:To easily recognize a lap speed by previously making an arrangement so that a lap distance can be inputted, and at the same time, automatically calculating and displaying the lap speed from the above-mentioned lap distance and the lap time when the lap time is measured. CONSTITUTION:In step S1, it is discriminated whether or not a switching input is made, and when the switching input is made, the process proceeds to step S3 after a corresponding switching process (Step S2) is performed. When no switching input is made, on the other hand, the process directly proceeds to the step S3. In the step S3, a displaying process which displays prescribed data in a displaying section 15 is performed, and, after making the process, the process returns to the step S1. While the above-mentioned processes are performed in accordance with a general flow chart, a time count circuit 5, stop motor 6, train wheel mechanism 7, and hands 8 always make operations to be performed at every second so as to count and indicate the current time.

Description

[Detailed description of the invention] [Technical portion of invention Yj] The present invention relates to a stopwatch device.

[Background of the Invention J] For example, when watching a car race where the same course is repeated several times, it is better to watch the laps of the person you are rooting for than just watching them run. - Obtaining information and guessing how the person is doing today makes watching the game more interesting. For this reason, conventionally, stopwatch devices have been put into practical use that display the lap time each time the lap switch is operated and also store each lap time in sequence. There is. However, with this type of device, as shown in -, each rough lap time is displayed, so it is easy to know, but each lap speed is not displayed, and in order to know this, you need to know the lap distance and -F You have to calculate it yourself from the displayed lap times, but it is extremely troublesome to do calculations while watching the race.

[Object of the Invention] The present invention has been made in view of the above-mentioned Δh situation, and an object of the present invention is to provide a stopwatch device that allows lap speed to be determined very easily and without any inconvenience.

[Summary of the Invention] In order to achieve the above object, the present invention allows lap distance to be entered in advance, and when lap time is measured, automatically calculates lap speed from the lap distance and lap time. The main point is that it is now displayed as follows.

[Example] Hereinafter, the present invention will be specifically described based on an example shown in the drawings. In this embodiment, the present invention is applied to an electronic wristwatch.

FIG. 1 shows the circuit 4RJ& of this embodiment. That is,
The configuration is such that various circuit sections are connected to cptyi. The CPUI is a circuit section that controls the operation of the entire system by exchanging data and signals with various circuit sections according to a built-in microprogram.

The oscillator 2 is a circuit that always outputs a basic clock signal of a predetermined frequency, for example, 32 KHz.
Divide the basic clock signal from oscillator 2 to 100Hz
This is a circuit that generates a signal and a 20Hz signal and sends them to an AND gate IO and a 20-decimal counter 4, respectively. The 20-decimal counter 4 receives the above 20Hz that is sent.
The 0-time word count circuit 5, which is a circuit that counts the signals and sends a 1-second carry, that is, an IHz signal, to the CPUI, time counting circuit 5, and step motor 6 every time it counts 20, counts the ZHz signal, This circuit obtains the current time moment by moment and provides it to the CPUI via the data bus a. The step motor 6 rotates by a predetermined angle each time the J and Hz signals are sent, and moves the hands 8 consisting of an hour hand 8a and a minute hand 8b through a gear train mechanism 7. The RS flip-flop 9 receives a set signal from the CPU 1, enters the set state, sends out an output Q, and outputs the output signal Q from the CPU 1.
After receiving the reset signal from the UI, it returns to the reset state.
This is a flip-flop that stops outputting the output Q. Ant gate lO is opened by output Q, and inputs the 100Hz signal from frequency divider circuit 3 to next lO base counter 1.
This is a circuit that sends data to 1. The IO counter 11 is a circuit that counts the 100 Hz signal sent through the AND gate 10 and provides a 1/10 second carry, that is, a 10 Hz signal, to the decimal counter 12 every time it counts IO. The lO base counter 12 counts the -F 10Hz signal, and every time it counts 10, it carries for 1 second, that is, I
The 0 hour/minute counter 13, which is a circuit that supplies the Hz signal to the hour/minute counter 13, is a circuit that counts the IHz signal and counts the second digit of the elapsed time.

The counted values of the decimal counters 11, 12 and the hour/minute counter 13 are sent to the CPUI via the data bus b.
It is cleared by a clear signal from the UI.

The switch unit 14 includes switches Sl to S3.5A, which will be described later.
, SL+, and when one of the switches is operated, the 0 display unit 15, which is a circuit that sends the corresponding SUI and CH input power to the CPUI, has various display bodies described below.
This is a circuit unit that displays data from the PUI. RAM1
Reference numeral 6 denotes a circuit unit which exchanges data with the CPU under the control of the CPU 1 and stores the received data. FIG. 2 shows the configuration of the RAM 16. The measured time register ST is a register in which the time measured by the hour/minute counter 13, decimal counter 12, and 11 (that is, the time measured as a stopwatch) sent via the data bus is set. CH2B distance register D
consists of an upper register DI and a lower register D2, and is a register in which the total distance of a race, etc. is set in advance.The register D1 is set with the digits greater than kilometers, and the lower register D2 is set with digits less than kilometers. digit is set. The total number of laps register TR is a register in which the total number of laps for a race is set prior to the race. The lap speed register RV is a register in which the speed of the second lap of the lap is set each time a lap switch (described later) is operated. The total average speed register TV is a register in which the total average speed of -V for the entire race, which is calculated when the switch operation to end the measurement according to this embodiment is performed, is set.

Mode register M is a register that specifies the mode,
When the value is O, the clock mode for displaying the current setting on the display section 15 is specified, and when the value is l, the present embodiment is executed.
Specify the stopwatch mode when using it as a watch. The set data pointer A is a pointer that indicates the data type when inputting the data necessary to obtain the lap speed. The predetermined lap number register R is a register in which the number of laps that have already been completed is sequentially set. The memory pointer P is stored in a memory M1. M2,...M9
For example, when the value of memory pointer P is 2, it specifies memory M2.

The set flag SEP is a flag that is set in a set state when setting data necessary for calculating the lap speed. The start flag STF is a flag that is set when the stopwatch starts measuring.

The read flag CF is a flag that is set during a memory read process in which past lap data that has already been measured is sequentially displayed on the display unit 15 while continuing to operate as a stopwatch. The lap display flag RF is a flag that is set in a lap data display state in which various lap data related to the current lap are displayed on the display section 15 for a certain period of time after calculation of the lap speed.

The lap recording unit RM is made up of 99 memories M+-M99, and each memory is made up of a lap area RA, a measurement time area STA, and a lap speed area RVA. Then, memory M1 wraps for the first time [1, memory M
2 is the second lap...Each memory corresponds to each lap, and the rough wrap area RA of each memory,
The measurement time area STA and lap speed area RVA each indicate the number of laps corresponding to the lap,
The lap speed for that lap and the time elapsed from the start until the end of the lap are recorded.

As shown in FIG. 7(a), on the dial 20 of this embodiment, in addition to the hour hand 8a and the minute hand 8b, a first display section 21 of a liquid crystal display,
A second display section 22, a third display section 23, and a digital display section 24 are provided, and a switch Sl
-33, S^, and S6 are arranged, but FIG. 3 shows the first display section 21. A second display section 22, a third display section 23,
FIG. 3 is a diagram showing in detail the display arrangement state of the digital display unit 24. FIG. That is, the first display section 21 and the third display section 23
In the second display section 22, thin rod-shaped display bodies are disposed in a radial manner, and in the second display section 22, arc-shaped display bodies are disposed in a ring shape. In the center of the second display section 22 and the third display section 23, a seven-segment display for displaying numerical data is arranged for two and three digits. Further, the digital display section 24 is provided with a seven-segment display for eight digits for displaying numerical data such as time.

Next, the operation of this embodiment configured as described in 1- below will be explained.

FIG. 4 is a general flowchart showing an overview of the operation of this embodiment. That is, in step S1, it is determined whether there is a switch input, and if there is a switch input, the process proceeds to step S3 after executing the corresponding switch processing (step S2), but on the other hand, if there is no switch input, the process is directly executed. Then, in step S3, a display process is performed to display predetermined data on the display unit 15, and then the process returns to step S1.

Note that in this embodiment, in addition to the operations based on the neural flowchart described above, the time counting circuit 5° step motor 6, train wheel mechanism 7, and pointer 8 constantly perform operations every second to determine the current time. time and the current time is displayed on the hand (see Figure 1).

FIG. 5 is a flowchart showing in detail the switch processing in the general flowchart, and FIG. 6 is a flowchart showing in detail the display processing in the general flowchart.

Furthermore, FIGS. 7 and 8 show changes in the display on the display unit 15 as each switch is operated. From F, 7th
Various operations will be explained along the transition of the display shown in the figure and FIG. 8, with reference to each L2 flowchart.

(a) Operation in hour d1 mode Assuming that O is set in the mode register M and the clock mode is in effect, the display process shown in FIG. 4 (step S
3) That is, each time the flowchart of FIG. 6 is entered, confirm that the time mode is set (step 5aO), and execute the next time display process (step 581). In this time display process, the current time is digitally displayed on the digital display section 24, the middle of the minute of the current time is displayed on the third display section 23 in analog form, and the second of the current time is displayed on the first display section 21. The second display section 22 further displays the unit of l.
/Displays units of 20 seconds in analog form.

For example, when the current time is 10:08:35.15, a display as shown in FIG. 7(a) is displayed on the 1 display section 15.

(b) Switching operation to stopwatch mode As shown in FIG. 7, when switching from clock mode to stopwatch mode, switch Sl is operated. At this time, the operation is detected in step S10, the read flag CF is lowered (step S l 1), and the set flag SEP
Step $12) to confirm that the clock is not set, step 513) to confirm that it is still in clock mode, set mode 1/register M to 1 to enter stopwatch mode (step 514), and After that, display processing (
In step S3), the negative display shown in FIG. 7(b) regarding the unmeasured state is displayed on the display unit 15 (steps 5Llo to
5115).

(C) Setting operation of data for calculating the speed of CH2B Before using it as Stop War 2,000, it is necessary to set the lap distance and the total number of laps in the race, which are necessary to calculate the lap speed. To do this, first, as shown in FIG. 7, switch S2 is operated to bring it into a setting state.

At this time, the operation of the switch S2 is detected in step S21, the read flag CF is lowered (step 522), and it is confirmed that the set flag SEP has not been set yet.
(Step 523), and then sets the flag (Step 524). Next, in Step S25, O is set in the set data pointer A, and the distance (i.e., h) of the lap distance is set to 0 in the set data pointer A. Specify the data to be set. After the above operations,
The above-mentioned setting operation for a distance of more than a kilometer is performed by using the switch SA or S8 as shown in FIG. 7. That is, when the switch AA is operated, it is detected in step 530 Step S31.3
32, step 550 is reached, and it is detected that O is set in the set data pointer A, and that a distance greater than or equal to the second kilometer of the cheap distance, that is, the upper register D1 is specified, and the upper register D+ is set. When the switch SQ is operated, it is detected in step S55, and the process goes through steps S56 and S57 to step S65, where the upper register DI is specified. It detects that the upper register DI is 1 and decrements it by 1 (step 566).Distances of kilometers or more set as in 9F are displayed on the digital display section 24 of the display section 15 through display processing. For example, when 5 kilometers is set as the distance in kilometers or less (steps S80, S82 to S584), the digital display section 24 displays a display as shown in FIG. 7(c).

Next, in order to set a lap distance less than a kilometer, an operation is performed to specify the distance, that is, the lower register D2.This is done by operating the switch S3 in the above state, as shown in FIG. , at this time, the operation is detected in step SIO, 1. After passing through step S11.512, in step S16, the value of the set data pointer A is set to a value larger by 1, that is, l, and a distance less than the above kilometer is specified, and then, through step S17, display processing is performed. In this display process, the distance that is less than the already set kilometer is switched from the dotted eagle display to the lit display. As shown in FIG. 7(d), the setting operation is performed based on the operation of the switch S^ or S8 in the same way as in the case of the distance of kilometers or more (steps 330, 332, 350). .S52,
Steps S55 to S57, S65 and S65.567), and in the display process, the distance less than the set kilometer is flashed on the digital display 24 (step $80).
, S82.584), for example, when 170 meters is set as the distance less than a kilometer, a display as shown in FIG. 7(d) is displayed on the digital display section 24.

Next, in order to set the total number of ``-2'', '! ! ! 1. Perform an operation to specify the total number of laps, that is, the total number of laps register TR. This is done by operating switch S3 in the above state as shown in FIG. 7. At this time, this operation is detected in step SIO. After steps Sll and S12, the value of the set data pointer A is set to 2 in step S16 to specify the above-mentioned total number of laps, and the process proceeds to display processing via step S17. After the above operations, the above-mentioned total number of laps is The operation to set the lap number register TR is performed, but as shown in FIG. 30-S32, S50, S53, Steps S55-S57, S65.568), and in the subsequent display processing, the set total number of laps is displayed blinking on the digital display section 24 (Steps S80.S82.
383.585), for example, when 66 is set as the total number of laps, a display as shown in FIG. 7(e) is displayed on the digital display section 24.

In the above state, in order to specify the hot water temperature for the lap distance in order to correct the distance between kilometers and L, the switch S3 is operated as shown in Fig. 7; Detected in step S10, step 51
1.512, the value of the set data pointer A is set to 3 in step S16, and the value of set data pointer A is set to 3 in step S17.
At step 18, the value of the set data pointer A is returned to O to specify a distance greater than the above kilometer. The distance is set in the same manner as described above.

After completing the above setting operations, as shown in Figure 7,
The switch S2 is operated to return to the state shown in FIG. 7(b) in which measurement can be started, but at this time, the operation of the switch S2 is detected in step S21, and the process goes through step S22 to step 523 where the set flag is not yet set. After confirming that SEP has not been lowered, the set flag SEP is lowered in step 526 to make it possible to start measurement. Thereafter, in the display process, the display on the display section 15 is returned to the one shown in FIG. 7(b) (step Sl 1O-5l 15).

(d) Stopwatch operation Stopwatch and 1. To actually use it, -1-
The state shown in FIG. 7(b), that is, the state shown in FIG. 8(a) is maintained, and the switch SA is operated at the start of the 1st/-speed. At this time, the operation is detected in step S30, and through steps 531 and S32, it is confirmed in step S33 that the start flag STF has not been set yet, and then the start flag STF is set and the measurement operation is started (step 534), that is, a set signal is sent to the RS flip-flop 9 to set it, and the output Q from the RS flip-flop 9 opens the anti-game) 10, and the 100Hz signal from the frequency divider circuit 3 is It is applied to the base counter 11 to start counting the elapsed time by the base lo counter 11.12 and the hour/minute counter 13. The measurement times by the decimal counters 11 and 12 and the hour and minute counters 13 are sequentially stored in the measurement time register S.
It is set to T.

Thereafter, each time the display process proceeds, the measurement time register ST
The measured time is digitally displayed on the digital display section 24 (
Step 5ILO), then steps 5111-8113, and step 5114 to display the second digit of the measurement time in the interval measurement register ST on the first display section 21 in analog form.Step 5114), then the above The digit of 1/10 second during the JI measurement waiting time in the time measurement register ST is digitally displayed on the second display section 22 (step 5115).

l! [: If you want to measure the time since the start of the race and also obtain lap data, operate switch SR at the end of each lap. At this time, each time the switch SR is operated, that is, each time the running of each lap is completed, the switch So is operated in step S.
55, and through steps 55B, S57, and S58, the lap display flag RF is set in step S59 to change from the normal state to the lap state, and while increasing the value of the default lap number register H by 1, that is, first A memory next to the memory in the lap recording unit RM in which the lap data is recorded (for example, the memory MJ when the data is recorded in the memory M3) is designated (step 560). Next, the measured time is set in the measured time register ST via the data bus (step 561). Next, a lap is performed at the time (the time taken for the current lap), which is obtained by subtracting the measurement time stored in the measurement time area STA of the memory where the lap data of direct rtN is stored from the measurement time in the measurement time register ST. Calculate the current lap speed by dividing the lap distance set in distance register D2 and set this in lap speed register RV (step 562)
, After that, the error and lap number of the predetermined lap number register R, the lap speed of the lap speed register RV, and the measurement time of the measurement time register S'r are stored in the lap recording section of the memory specified by the predetermined lap number register R, respectively. Processing for storing data in RA, measurement time area STA, and lap speed area RVA is performed. In the display process, step S80
．． After passing through S82 and 586, it is confirmed in step S95 that the lap display flag RF is set, and the current lap data stored in the memory specified by the default rough number register R is displayed. That is, the lap time is displayed on the digital display section 24 (step 59B), and the number of laps is displayed on the second
Step 5: Analog display on the ring-shaped part of the display section 22
97), digitally display the lap speed in the center of the third display section 23 (Step 398), and further display the lap speed in the third display section 23.
Step 5: Analog display on the ring-shaped part of the display section 23
99).

The second unit of the lap time is displayed in analog on the first display section 21 (step 5100), and the unit of l/10 seconds of the lap time is displayed digitally on the center of the second display section 22 (step 5100).
step s i o i). Thus, the display on the display section 15 becomes, for example, as shown in FIG. 8(b).

Wait for 8 seconds in the above state (step 5102.5)
104.5102), when 8 seconds have elapsed, the lap display flag RF is lowered and the lap state returns to the normal state, and from then on, the normal state is displayed every time the display process is started. That is, the measured time of the measured time register ST is digitally displayed on the digital display section 24 (step 5l).
lO), the number of laps of the previous lap is displayed in analog on the ring-shaped portion of the second display section 22 (step 51ll), and the lap speed of the previous lap is displayed digitally in the center of the third display section 23 (step 5112). , the lap speed is displayed in analog form on the ring-shaped portion of the third display section 23 (step 511).
3) On the ring-shaped part of the first display section 21, the middle seconds of the measured time of the register ST are displayed in analog form (-).
Step 3114), the middle of 1/10 seconds of the 3-f waiting time of the first measured time and the register ST is digitally displayed in the center of the second display section 22 (step 5115). That is, the switch SO is operated every time one lap is completed, and then the lap state in which the lap speed, etc. for that lap is calculated and stored, and the lap speed and lap time are displayed continues for 8 seconds. After this is completed, the normal state returns, and then until the running of the current lap that has already started is completed and the Swee 2,000 SR is operated, the previous lap number and lap speed will be displayed at the start of the race. The measured time from
This is detected in step 5104, and the lap display flag R is
Let F age and bring it to normal state (step 3105),
Proceed to switch processing (flowchart in FIG. 5).

As described above, as the race progresses, the team data for each lap is sequentially stored in each memory of the lap recording section RM, but in order to check these data during the race, the switch S1 is operated. At this time, the process proceeds from step S55 to step 570 and then to step 571, and it is confirmed that the value of the 4-run lap number register R is not already O and that at least lap data is stored in the memory M of the lap recording unit RM. Step 572 confirms that the read flag CF is not set and the memory is still in the read state.
), the read flag CF is set at -, and the memory is set to the above-mentioned memory read state (step 573), and then the memory pointer P is set to 1 and the memory M1, which is the first memory in the lap recording section RM, ie, the first memory is set. Specify the memory that stores the lap data for the lap (step 57).
4). In the subsequent display process, it is detected in step S86 that the read flag CF has already been set, and the digital display unit 2 displays the lap time of the measurement time area STA of the memory M1 specified by the memory pointer P.
Display the number of laps in the lap recording area RA digitally in step 587), display the number of laps in the lap recording area RA in analog form on the ring-shaped part of the second display unit 22 (step 588), and display the lap speed in the lap speed area RVA in the center of the third display unit 23. Further, the speed is displayed digitally on the third display section 23 (Step 389), and then the speed is displayed as an analog display on the ring-shaped portion of the third display section 23 (Step 389). (Step 590) Displays the lap time in seconds in analog form on the first display section 21 (Step 591) Digitally displays the 1/10 second unit of the lap time in the center of the second display fi22 (Step 591) 592).

From now on, every time you operate S1, S1,
2p S55, S70. After passing through S71, it is confirmed in step S72 that the read flag CF has already been set, and while increasing the value of the memory pointer P by 1, the process proceeds to display processing via step 576, and the display process is performed to display the value specified by the memory pointer P. The lap data of each memory in the lap recording unit RM is sequentially displayed on the display unit 15 in the same manner as described above (steps S87 to 592), and the display for all memories in which lap data is stored is displayed. When the point is completed, it is detected in step 376, the read flag CF is lowered (step 577), the memory read state returns to the normal state, and the measured time etc. of the measured time register ST of the point held are displayed on the display section 15. (Suf'-)B5IIO-5115).

21: While checking the past lap data with the memory read state, a certain number of laps have been completed and switch S8 is operated to take the lap data for that lap. If so, the operation is detected in step S55, and the read flag CF is disabled to return the memory read state to the normal state 71 (step 2 556). Next, the set flag SEP is not set, that is, the data is Step 557)
Confirm that the start flag STF is set, that is, that the stopwatch is in the process of measuring (step 558), and then set the lap display flag RF to enter the lap state (step 559).
). Step 560) increases the value of the 4-run lap number register H by 1 to remember that the number of laps already run has increased by one more time (step 560), and imports the measured time via data bus b. λ [set in time register ST step 561), the lap distance is calculated from the measurement time set in the measurement time register ST to the time when the clock side time at the end of the previous lap expired (i.e., the current lap time). The current lap speed is calculated by dividing the lap distance in register D (step 562). After that, the predetermined number of laps in h is stored in the memory in the CH2B recording unit RM specified by the value of JISTR. , measurement time register S
The measurement time of T is memorized (Step 563), and the process proceeds to display processing. In the display processing, a display operation is performed in the lap state in which each current lap data is displayed on the display unit 15 for 8 seconds as described above ( Step 596~
3103).

Measurement is carried out as described above, and when the last lap is completed (in other words, when the goal is reached), operate the SUINOCHI SA as shown in Figure 8. However, when the operation is detected in step S30 and the process proceeds to step S32 via step S31, the process proceeds to step S3.
In step 2, it is confirmed that the set flag SEP is lowered, and then it is confirmed that the start flag STF is still set and is in the measurement state (step 533).
, then lower the start flag 5TFII-, R
Stop sending out the output Q of the SS flip-flop, open the AND gate IO, and start the decimal counter, 11.12.
The time counting operation of the hour and minute counter 13 is set to 11- (step 5).
40). After that, the value of the predetermined lamp number register H is increased by 1 (step $41), the measured time is read through the data bus and set in the measured time register ST (step 542), and the steps S62 and S63 are performed. Similarly, calculate the lap speed for the final lap and set it in the lap speed register RV, and then store the current lap data in the memory in the lap recording unit RM specified by the default rough number register R ( Step 2 S43.545), then divide the product of the lap distance in the lap distance register D and the total number of laps in the total number of laps register TR by the total time of IJ4S in the measurement time register ST, that is, the total time required for the race. The total average speed in the race is calculated (step 846). In the subsequent display process, the total time indicated in F is displayed digitally on the digital display section 24 (Step 5llO), the total number of laps is displayed in analog form on the link-like section of the second display section 22 (Step 5ill), and the above-mentioned total average speed is displayed. A digital display is displayed in the center of the third display section 23 (step 5112), and further,
Display the measured speed tIF in analog on the ring-shaped portion of the third display section 23 (Step 5113), and display the middle of the seconds of the total time on the first display section 21 in analog (Step 5114).
), the unit of l/10 seconds of the total time is displayed on the second display section 22.
digitally displayed in the center of (stabe 2b 5115),
Thus, the display on the display section 15 becomes as shown in FIG. 8(c).

As described above, in order to clear the current cheap data from the lap recording section RM etc. after the race has ended, the switch S8 is operated. At this time, the operation is detected in step S55, and the process goes through steps S56 to S558 to step S64, where the measurement time register ST, the memory MI-M9Q of the lap recording section RM, and the default lap number register R are cleared, and the subsequent display processing (Step 5iio-s
At step 115), all the displays are cleared and the state returns to the state shown in FIG. 8(a).

To return from the stove/boo watch mode to the clock mode, switch S3 is operated as shown in FIG.

At this time, the operation is detected in step S10, and step S
I1. The process goes through S12 to step S13, and after confirming that the watch mode is not yet set, 0 is set in the mode register M to set the watch mode (step 51).
5). In the subsequent display process, the process goes through step S80 to step 581, where time display is started. The display on the display section 15 then returns to the one shown in FIG. 7(a).

It should be noted that the present invention is not limited to the above-mentioned embodiments, and can be modified and applied in various ways without departing from the scope of the present invention.

E. Effects of the Invention] As detailed above, this invention allows lap distance to be entered in advance, and when lap time is measured, lap speed is automatically calculated from the lap distance and lap time. Therefore, it is an object of the present invention to provide a stopwatch device that can extremely easily determine the lap speed.
(Noh)

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the circuit configuration of one embodiment of the present invention, and FIG.
The figure shows the configuration of the RAM in Figure 1, and Figure 3 shows the configuration of the RAM in Figure 1.
FIG. 4 is a general flowchart showing an overview of the operation of the above embodiment; FIG. 5 is a flowchart showing details of the switch processing in the general flowchart; FIG. 7 is a flowchart showing details of the display processing in the general flowchart described above, and FIGS. 7 and 8 are diagrams showing changes in display on the display unit as a result of various switch operations. l... CPU, 2... Oscillator, 3...
...Frequency divider circuit, 4...2decimal counter, 5
... Time counting circuit, 6 ... Step motor, 7 ... Wheel train mechanism, 8 ... Pointer,
8a...Hour hand, 8b...Minute hand, 9...
...RS flip-flop, 11.12...
・Decimal counter, 13...Hour minute counter, 1
4... Switch section, 15... Display section,
16...RAM, 20...Dial, 2
1...First display section, 22...Second display section, 23...Third display section, 24...Digital display section, ST... ...Measurement time register, D
......Lap speed register, TR......Total lap number register, RV......Lap speed register, TV......Total uniform speed register, M.
...Mode register. A...Set data pointer, R...
Default lap number register, P...Memory pointer, SEP...Set flag, STF...
・Start flag, CF...Read flag, RF
......Lap display flag, RM...Lap recording section, RA...Lap area. STA...Measurement time area, RVA...Lap speed area. Patent applicant Casio Computer Co., Ltd., 1.21.・Knee tZJ diagram

Claims (1)

[Scope of Claims] A clock means for measuring the passage of time; a start/stop switch for controlling the start and stop of the time measurement operation of the time measurement means; a storage means; and a time measurement means during the time measurement operation of the time measurement means. a lap switch that is stored in the storage means; a lap distance storage means that stores the distance of one lap; and when the lap switch is operated, the distance stored in the lap distance storage means and the time since the previous lap are used. A stopwatch device comprising: means for determining a lap average speed for the current lap; and a display means for displaying the lap average speed.