JPS63256886A - Multifunction electronic timepiece - Google Patents

Abstract

PURPOSE:To calculate and display the final run time by providing a memory circuit which stores the contents of a counter circuit for a stopwatch and an arithmetic circuit which takes out the data of the memory circuit and computes the same. CONSTITUTION:An external operation switch 9 is operated and the integration of time is started at the time of starting. The running time is displayed 11 when the switch 9 is pushed at the passage by a 5km point. The signal of a control circuit 8 is inputted to the stop watch counter circuit 6 and the content of the circuit 6 of this time is stored in the 1st address of the memory circuit 7. The lap time between 5km and 10km is then displayed 11 and is stored in the 2nd address of the memory circuit 7 when the switch 9 is pushed again. From this point on, the lamp times of the respective sections are successively measured in the same manner and are stored in the respective assigned addresses of the memory circuit 7. The user pushes the switch 9 when he desires to know the final running time at the 10km point. Then, the contents of the 1st address and 2nd address of the memory circuit 7 are inputted to an arithmetic part 10, by which the average of the lap time is computed. The time after the average is multiplied by 42.195/5 is calculated and displayed as the fastest time.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a digital multifunctional electronic timepiece that not only has the function of measuring accumulated time but also calculates and displays an estimated value of accumulated time. be.

[Conventional technology]

In recent years, many marathon events have been planned and held among sports competitions. Additionally, although up until now it has mainly been a competition for athletes specializing in marathon running, in recent years many citizen marathons have been held for jogging enthusiasts from the general public.

Conventionally, digital electronic watches have typically been equipped with a function that can measure accumulated time, that is, a stopwatch function. It was also customary to add a split function to the stopwatch function that could measure the elapsed time between the start and the end. Watches with multiple memories that sequentially store the split function are already on the market.In addition, watches with a lap function that can measure the time of a certain section from the start to the end have also been realized. has been done.

[Problem that the invention seeks to solve]

However, when watching or participating in a marathon, the most interesting thing is how long it takes to cover the distance of 42.195 km. In this case, what is needed is the split time or lap time for every 5 km. By measuring this time, we can estimate and calculate the approximate travel time.

In the past, there were many stopwatches that could measure split times and lap times, but it was not possible to estimate the final running time based on them.

The present invention has been made in view of the above circumstances, and its purpose is to provide a clock that calculates and displays the final running time by measuring lap times every 5 km during marathon running.

[Means for solving problems]

The means to realize this watch is that in addition to the conventional stopwatch function watch, it also has a memory circuit that stores lap times every 5 km, and an arithmetic circuit that retrieves and calculates the memory times when necessary. Realized by Due to recent rapid advances in 1.C technology, it is now possible for the I-C to have all functions in one chip. In addition, the necessary calculation coefficients in the equation for calculating the estimated time, which is the basis of the calculation, vary depending on the marathon runner. Therefore, the coefficients are prepared in advance in the logic circuit. The results are displayed using a commonly used liquid crystal cell.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. Figures 2 and 3 are plan views of a timepiece according to an embodiment of the present invention;
The figure is a basic block diagram.

Note that parts not directly related to the present invention are omitted for the sake of simplification of the drawings.

In Figures 2 and 3, 1 is a watch case, 2 is a liquid crystal cell that forms the display section, and 1a to 1e are switch buttons that change the display contents of the liquid crystal cell 2 and adjust the time. It is for. The time, 12:38:25, is displayed in the lower part 23 of the liquid crystal cell 2 in FIG. Upper row 2b
The two letters SU of March 23rd and 5UNDAY of the calendar are displayed in 7 segments in the section. Now, FIG. 3 shows a diagram in which the time mode display is changed to the stopwatch display mode using the S/F border button 1d. In FIG. 3, the lower part 20 of the display of the liquid crystal cell 2 displays the elapsed time from the start. Currently, the stopwatch is in its reset state, showing 0 hours, OO minutes, and OO seconds. The upper 2d section displays the lap time. Currently, it is in a reset state, that is, it is displaying O hours OO minutes 00 seconds.

In this embodiment, the minimum integrated digit of the stopwatch display is up to the second digit, but if you want to display up to the 1/10 second digit, you only need to add 7 more segments (, 1/100
It is obvious that if you want to add up to the second digit, you only need to add 14 segments.

The 20th section is a section display showing which section of time is being displayed after the start of the lap time in the upper section 2d. For example, if this display indicates 5 to lokm, the lap time displayed in section 2d indicates the running lap in this section.

FIG. 1 shows a block diagram of one embodiment of the invention.

In FIG. 1, numeral 3 represents a crystal oscillation circuit which is the basis of a clock's time signal. 4 is a frequency dividing circuit for reducing the signal from the crystal oscillation circuit 6 to a frequency necessary for time measurement and time display.

5 is a time and calendar counter circuit for counting the time and calendar. The 1 second signal from the frequency dividing circuit 4 is input to the time and calendar counter circuit 5. At this time, the calendar counter circuit 5 includes a sexagesimal counter for counting seconds, a sexagesimal counter for counting minutes, and a decimal counter for counting hours.
This is a group of counter circuits for measuring the time and calendar, such as a binary counter for counting M/PM, a 28-31 counter for counting the date, and a 12-decimal counter for counting the month.

6 measures time. That is, it is a stopwatch counter circuit. The stopwatch counter circuit 6 receives the minimum signal of stopwatch measurement from the frequency dividing circuit 4, for example, 1710 seconds if the minimum measurement unit is 17100 seconds.
The 0 second signal is received from the frequency divider circuit. A 100-decimal counter receives this signal to count up to 1 second, a sexagesimal counter receives the signal and measures the second, a sexagesimal counter receives the signal and counts the portion of the signal, Uke is a counter that measures the time of taking (this counter is a decimal counter if the time is 12 hours, and a 24 decimal counter if the time is 24 hours).
This is a group of counter circuits for stopwatch measurements consisting of:

7 is a memory circuit, which is a memory circuit for storing the contents of the stopwatch counter circuit 6.

The memory circuit 7 is divided into memory circuits numbered 1 to 8, each of which stores lap times for every 5 km. In other words, address 1 has 0 to 5k.
m, 5-10km for number 2, 10-15km for number 3
m, and number 7 is allocated in order from 30 to 35 km.
No. 8 has a distance of 35 to 40 km. Reference numeral 8 denotes a control circuit which will be described later, and various signals are generated in response to operation instructions from an external operation switch 9 that constitutes a group of external operation switches included in the watch. 10 is an arithmetic circuit which extracts data from the memory circuit 7 and performs time calculations according to a predetermined calculation procedure.

11 is a display device, which displays the time, calendar counter circuit 5, stopwatch counter circuit 6, and memory circuit 7.
, is a display device that displays the contents of the arithmetic circuit 10 in response to a control signal issued to the control circuit 8 by operating an external operation switch 9. This display generally uses a liquid crystal display.

Next, referring to FIG. 5, the signal generation means of the control circuit 8 will be described in more detail.

External operation buttons 13 to 1e corresponding to FIGS. 2 and 3 are shown as switches SW, to SW.

12 to 15 are known one-shot pulse generators that generate one-shot pulses when the switches SW1 to SW are turned on.

In this embodiment, SW3 is a switch for switching the mode from time and calendar display to stopwatch display. Reference numeral 17 is a flip 70 knob, and when it is 1 time or a calendar, it is lower than the low signal c. ) status signal is output. When the SW is turned on from this state, the 7-lip 70 knob 17 outputs a high signal (hereinafter referred to as H) by the output pulse from the pulse generator 14, which is input to the AND gate 18. At this time, when SW is turned on, a pulse is generated from the one-shot pulse generator 12,
It passes through the AND gate 18 and is transmitted to others as a control signal. This signal is used as a start and stop signal. On the other hand, this signal is flip 70 knob 19
When the H signal is transmitted to the AND gate 20, the H signal is transmitted as an output therefrom. At this time, when SW2 is turned on, 16 pulses from the pulse generator are input to the AND gate 20 and used as a control signal.

This signal is transmitted to other circuits as a wrap signal. At the same time, it is input to the 7-lip prop 21, and then I(
The signal is input to AND gate 22.

When the SW is turned on in this state, the one-shot pulse force of the pulse generator 16 is output, and the AND gate 22
is transmitted to other circuits through.

This signal is transmitted to other circuits as a calculation signal. S
When the switch W4 is turned on, the pulse from the pulse generator 15 is used as a lamp control signal.

As explained above, the control circuit generates various control signals and uses these signals to control the state of the circuit and the state of the display. , there are many ways to achieve this.

Next, the operation of this embodiment will be explained using a specific example.

As shown in FIG. 3, the clock display is a stopwatch display and is in a reset state. Now, in time with the start of the marathon, the external operation switch 10 is operated and time accumulation is started.

Next, when the switch button 16 is pressed when passing the 5 km point, the running time of 5 km from the start is displayed in the upper part 2d. Let this time be 15 minutes and 30 seconds. To explain with reference to FIG. 1, a signal from the control circuit 8 is input to the stopwatch counter circuit 6 by operating the external operation switch 9, and the contents of the counter circuit at that time are stored in address 1 of the memory circuit 7 by that signal. . Next, when the switch button 1b is pressed again at a passing point after running 10 km, the running time between 5 km and 10 km, that is, the lap time, is displayed in the upper section 2d of the display. As explained above, the lap time at this time is stored at address 2 of the storage circuit 7.

Similarly to the above explanation, when the switch 1b is next pressed at the 15km passing point, the lap time between 10km and 15km is displayed in the upper section 2d. At the same time, the memory circuit 70
The power of time is memorized at number 3.

Thereafter, the lap times for each section are sequentially measured in the same way, and the lap times are stored in each assigned address in the memory circuit 8. Assume that you have now measured your lap time up to 10km. The lap time at that time was 15 minutes and 30 seconds for the first 5 km, and 16 minutes for the next 5 km.
Seconds. When the user wants to know the final running time after running 10 km, when the switch button 1e shown in FIG. 3 is pressed, the display is changed to the display shown in FIG. 4.

In other words, the estimated final running time when running 42.195 km is 2.
The time was displayed as 12 minutes and 55 seconds. In this calculation, the contents of the memory circuit 701 and 2 in FIG.
The time multiplied by 42.19515 is calculated and displayed as the fastest time. This time, I calculated and displayed the average lap time for each section, but if you analyze data from past marathons and program the calculation formula, the estimated time will be more accurate. Alternatively, it is obvious that three types of arithmetic expressions for professional use, semi-professional use, and amateur use may be prepared so that the user can select their use and use them depending on the purpose. . Alternatively, the estimated running time may be displayed in addition to the estimated time based on the average lap time for every 5 km, and a time added by 2% to that time, so that the estimated time is displayed with a certain range.

Incidentally, it is also possible to allow the user to input coefficients suitable for him/herself as data for calculation.

〔Effect of the invention〕

As explained above, according to this invention, the 5k marathon
If you measure the lap time every meter, you can instantly calculate and display the time it took to travel 42.195 km based on that time, making this a very convenient and useful watch for the user.

[Brief explanation of the drawing]

Fig. 1 is a circuit block diagram of a multi-functional electronic timepiece showing an embodiment of the present invention, Figs. 2 and 3 are plan views of an embodiment of the timepiece of the invention, and Fig. 4 is a display of estimated running time. FIG. 5 is a plan view of the display section showing the status, and is a circuit configuration diagram of the control circuit shown in FIG. 1. 6... Crystal oscillation circuit, 4... Frequency dividing circuit. 5...Time, calendar counter circuit, 6.
...Stopwatch counter circuit, 7...
...Memory circuit, 8...Control circuit.

Claims (1)

[Claims] A multifunctional device that includes a crystal oscillator circuit that generates a reference signal that serves as a time reference, a frequency divider circuit that divides the reference signal, a counter circuit that counts time and calendar, and a stopwatch calendar circuit that integrates time. The electronic watch is provided with a memory circuit that stores the contents of the stopwatch counter circuit, and an arithmetic circuit that retrieves and calculates the data in the memory circuit, and measures lap times at fixed distance intervals during running time accumulation. A multi-functional electronic watch is characterized in that it calculates and displays the estimated running time for the entire distance traveled.