JPH0436471Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a stopwatch device having a tachymeter function.

[Conventional technology and its problems]

BACKGROUND ART Conventionally, stopwatch devices having a so-called tachymeter function are known in which distance data is stored in advance and the stopwatch measurement time data and the stored distance data and speed data are calculated and displayed.

This type of tachymeter has a mode for displaying speed data, such as a split tachy mode that displays split tachy (average speed since the start) or a lap tachy mode that displays lap tachy (speed during the lap period). is specified in advance, and the speed data as described above is displayed by operating a switch or the like at the end of measuring time data. For example, if the mode is set to the above-mentioned split taki mode, the split taki data will be displayed when time measurement is stopped after setting the necessary distance data in advance. Furthermore, after clearing these, if time measurement is started and stopped again, new split taki data can be obtained using the measured data and the distance data. When the mode is set to the above-mentioned lap data, the lap data can be obtained by setting necessary distance data in advance and then measuring the time between each lap.

However, in a device having both the split taki and lap taki functions, the distance data for split taki and the distance data for hop taki are naturally different, so it is necessary to provide storage means (memory) for each distance data.

However, it is not common practice to operate the split taki and the hop taki at the same time to obtain speed data for both at the same time, and therefore, providing both types of memory has the disadvantage that circuits are wasted.

[Purpose of invention]

In view of the above-mentioned conventional problems, this invention has the functions of both split taki and lap taki.
Moreover, it is an object of the present invention to provide a stopwatch device that can prevent unnecessary circuits.

[Key points of the idea]

In order to achieve the above object, the present invention allows the storage means to be shared by calculating and displaying both split taki data and lap taki data based on the same distance data.

[Example of idea]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a circuit diagram according to an embodiment of the present invention. In the figure, ROM1 is a fixed memory that contains programs and data that control the entire system. ROM address control unit (ROMA) 2 defines the flow of the program.
This is an address part of the ROM1, and inputs therein an output N _A specifying the next address of the ROM1, an output of an arithmetic operation circuit (ALU) 5, and an output from a frequency dividing circuit 10, which will be described later. RAM3 outputs the data at the address specified by the address data outputs S _U , S _L and F _U , _FL of ROM1, and each data is
This is a memory that inputs and stores the results processed and processed by ALU5. The instruction decoder (INSTDEC) 4 is a block that decodes the output Ins of the ROM 1 and sends control signals to each block. The ALU 5 performs arithmetic and logical operations using S and F as inputs, and writes the output to the address of the RAM 3 specified by the outputs F _U and _FL of the ROM 1. Latch (LATCH) 6 is the output S _U of ROM1,
Temporarily stores the contents of the RAM3 address specified by S _L and synchronizes with the input F of ALU5.
Send it to input S of ALU5.

Oscillator (OSC) 7 outputs a constant period clock signal, and timing generator (TIMING)
Numeral 8 divides the frequency of the clock signal to a predetermined frequency and outputs a timing signal for controlling each block in time series. Key input section (KEY) 9
are blocks that send signals to instruct the system to perform each processing operation. Frequency divider circuit (DIV) 1
0 is a counter that divides the output from OSC7,
A clock signal with a constant (1/100 second) cycle is sent to the RAM 3, etc., and clock processing is performed.

The display circuit (DISP) 11 is a circuit block that displays processed data, and the buzzer circuit (BUZZ) 12 is a circuit block that generates a buzzer signal based on data from the bus line.
Bus control gate A1, A2, B1, B
2, C1 to C4, D1, and D2 are gates that control each bus line based on the output of INSTDEC4.

Next, FIG. 2 shows a specific internal configuration of the RAM 3 mentioned above.

As shown in the figure, the RAM 3 includes an upper display register X, a lower display register Y, a stopwatch register SR, a plurality of lap memory registers LR, a lap count memory register KR, a distance memory register DR,
Content display switching register M, display mode flag L,
It consists of a lap difference mode flag N, an average lap mode flag O, a lap taki mode flag P, a split taki mode flag Q, a distance setting mode flag S, etc.

Above upper display register X, lower display register Y
are registers that store the contents displayed in the upper and lower rows of the display, respectively, as shown in FIG.
The stopwatch register SR is a register that stores the elapsed time after the start of measurement. The lap storage register LR is composed of a plurality of registers, and the lap time is sequentially written into each register. Note that the lap time mentioned here refers to the time when the lap switch (described later) is activated during stopwatch measurement.
This is the amount of time that has passed since the last operation of the lap switch SL when the SL was operated. However,
The lap count storage register KR is a register that stores the number of laps taken, that is, the number of laps, and the distance storage register DR is a register that stores distance data required when performing tachymeter display (lap take and split take). .

Furthermore, when the display mode flag L is set to "1", the display mode shown in FIG. 5 is a lap difference mode _M1 , an average lap mode _M2 , a lap taki mode _M4 , or a split taki mode _M3 ; When "0" is set, other normal measurement modes _M6 , lap and split modes _M8 , etc. Note that the term "split" here refers to the time from the start of measurement.
Therefore, when the lap difference mode flag N, the average lap mode flag O, the lap taki mode flag P, the split taki mode flag Q, and the distance setting mode flag S are set to "1", the respective display modes are set. are the flags for the lap difference mode M ₁ , the average lap mode M ₂ , the lap taki mode M ₄ , the split taki mode M ₃ , and the distance setting mode M ₁₀ . The content display switching register M is a counter that counts sequentially at predetermined time intervals as described later, and according to this count value, the above four display modes (lap difference mode M ₁ , average lap mode M ₂ , split taki mode M ₃ , the content display can be switched in the lap tachymeter mode _M4 ).

Each of the above registers X, Y, SR, LR, KR, DR,
The contents of M and the flags L, N, O, P, Q, and S are sequentially updated based on the data output from ALU 5 and KEY 9 by the read signal output from ROM 1 shown in Figure 1. The write signal is sequentially output to ALU5 and DISP11.

Next, the main processing operations of this embodiment having the circuit configuration as described above will be explained.

In Fig. 3, first check whether there is a clock clock every 1/100 seconds (a ₁ ), and if there is a clock clock, set 1 to the stopwatch register SR.
(=1/100 seconds) (a ₅ ), and if not, it is determined whether any key was pressed (a ₃ ).
In this embodiment, a key S ₁ for starting and stopping measurement, a key S ₂ for switching display modes, and a key S ₂ for switching display modes whose switching order is reversed. ₃ , key S for distance setting for tachymeter display, key S ₄ , key for lap display, split display, and canceling them.
It is equipped with SL.

Therefore, in step _a2 , if none of the above keys is pressed, the process returns to step _a1 , and if any key is pressed, the process moves to the next key process ( _a3 ), and then the key chatter process ( _a4 ). ) and then return to step _a1 .

Here, the above key processing (a ₃ ) will be specifically explained based on FIG. 4.

First, it is determined whether the pressed key is key S ₂ (b ₁ ), and if it is key S ₂ , it is determined whether the display mode flag L is 1, that is, the display mode is the lap difference shown in FIG. Mode M ₁ , average lap mode
It is determined whether the mode is M ₂ , lap taki mode M ₄ , or split taki mode M ₃ (b ₂ ). If L = 1, set the content display switching register M to 0 and set the display mode flag L to 1.
At the same time, the wrap difference mode flag N is set to 1, and calculations are performed to obtain the wrap difference (b ₃ ). This calculation is performed by finding the difference between two lap times stored in the lap storage register LR.

On the other hand, if L=1 in step _b2 , it is determined whether the lap difference mode flag N is 1 ( _b4 ), and if N=1, N is set to 0 and the average lap mode flag O is set. is set to 1, and calculations are performed to obtain the average lap (b ₅ ). This calculation is performed by calculating the average of the lap times stored in the lap storage register LR up to the desired number of laps.

If N≠1 in step _b4 above, it is determined whether the average lap mode flag O is 1 ( _b6 ), and if 0=1, O is set to 0 and the split taki mode is set. The flag Q is set to 1, and calculations are performed to obtain the split taki (b ₇ ). This calculation is performed by dividing the distance data preset in the distance storage register DR by the split time measured by the stopwatch register SR. Note that the above distance data is also used in the technical laptaki calculation (b ₉ ).

If O≠1 in step b ₆ above, determine whether the split taki mode flag Q is 1 (b ₈ ), and if Q = 1, set Q to 0 and set the split taki mode flag P to 1 and performs the calculation to obtain the rapture (b ₉ ). This operation is
This is done by dividing the distance data preset in the distance storage register DR by the desired number of lap times stored in the lap storage register LR.

Note that the above distance data is the same data used in the split taki calculation in step _b7 .

In step _b8 above, if Q≠1, that is, if the lap taki mode flag P is 1, then P is set to 0.
and set L to 0 (b ₁₀ ). That is, the display mode is switched to normal measurement mode or lap and split mode.

Furthermore, if the key is not _S2 in step _b1 , it is determined whether the key is _S3 ( _b11 ), and if so, it is determined whether L=1 as in step _b2 ( _b12 ). . If L≠1, set the content display switching register M to 0, set L to 1, set the wrap-up mode flag P to 1, and perform the wrap-up calculation as described above (b ₁₃ ). .

If L=1 in step _b12 above, P
is 1 (b ₁₄ ), and if P=1, P
is set to 0, and the split taki mode flag Q is set to 1, and the above-mentioned split taki calculation is performed (b ₁₅ ). Furthermore, if P≠1 in step _b14 above, it is determined whether Q=1 ( _b16 ), and if Q=1, 0 is set for this Q and 1 is set for the average lap mode flag O. Set,
The average lap calculation described above is performed (b ₁₇ ).

In step b ₁₆ above, if Q≠1, then O=
1 (b ₁₈ ), and if O=1, set O to 0, set the wrap display mode flag N to 1, and perform the above-mentioned wrap difference calculation (b ₁₉ ). On the other hand, if O≠1 in step _b18 , that is, if the wrap difference mode flag N is 1, N is set to 0 and L is also set to 0 ( _b20 ). That is, the display mode is switched to normal measurement mode or lap and split mode.

In this way, the order in which the display modes are switched is simply reversed between when the key S ₂ is pressed and when the key S ₃ is pressed. That is, when key S ₂ is pressed, each flag is switched in the order of N, O, Q, P and set to 1, whereas when key S ₃ is pressed, the flags are set to 1. The settings are changed in the order of N and set to 1. This switching of display modes will be described later based on FIG. 5.

Next, if the key is not the key _S3 in step _b11 , it is determined whether the key is the key _S4 ( _b21 ),
If so, it is determined whether L=0, that is, whether it is none of the four display modes M ₁ , M ₂ , M ₃ , and M ₄ (b ₂₂ ). If L=0, check whether the distance setting mode flag S is 1, that is, whether the display mode is the distance setting mode _M10 ( _b23 );
If S=1, S is set to 0 (b ₂₄ ), and if S≠1, S is set to 1 (b ₂₅ ).

In step _b22 above, L≠0 (that is, L=
For step 1), S is 1 as in step b ₂₃ above.
(b ₂₆ ), and if S=1, set S to 0 (b ₂₇ ), and if S≠1, set S to 1 (b ₂₈ ). When S=1, it is further determined whether the laptaki mode flag P is 1, that is, whether the display mode is the laptaki mode _M4 ( _b29 ). P=
If it is 1, perform the above-mentioned raptaki operation)
_b30 ). On the other hand, when P≠1, it is determined whether the split taki mode flag Q is 1, that is, whether the display mode is the split taki mode _M3 (b ₃₁ );
When Q=1, a split taki operation is performed (b ₃₂ ).

That is, by operating the key _S4 , you can switch between the normal measurement mode or lap and split mode and the distance setting mode _M10 , or between the four display modes _M1 , _M2 , _M3 , _M4. Mutual switching with distance setting mode _M10 is performed. In particular, split taki mode M ₃ or split taki mode M ₄
If the mode is switched from to distance selection mode _M10 and new distance data is set here, when the mode is switched to mode _M3 or _M4 again, the time data will not be cleared and the above steps will be repeated. b ₃₂
Alternatively, each calculation of b ₃₀ will be performed based on the new distance data.

Note that if the key is not the key _S4 in step _b21 , processing is performed for other keys such as _S1 or SL ( _b33 ).

Next, we return to FIG. 3 to continue the explanation.

If the 1/100 second clock is detected at step a ₁ , the stopwatch register SR
(a ₅ ), and then it is determined whether the display mode flag L is 1 or not, that is, whether the display mode is the lap difference mode M ₁ (N=1) or the average lap mode M ₂ shown in FIG. (O=1), split taki mode M ₃ (Q=1), or split taki mode M ₄
(P=1) (a ₆ ). L≠
In the case of 1, other mode displays, such as time display, lap and split display, etc. are performed ( _a7 ), and then the process returns to step _a1 .

On the other hand, if L = 1, it is determined whether 2 seconds have been counted (a ₈ ), and if it has not been counted yet, it returns to step a ₁ , and if 2 seconds have been counted, 1 is set in the content display switching register M. Add (a ₉ ).
Next, it is determined whether the content of this M is an even number (a ₁₀ ), and if it is an even number, it is determined which mode the display mode is, that is, each flag N, O, Q,
Determine which of P is set to 1 (a ₁₁ ).

In the case of N=1, that is, in the case of lap difference mode _M1 , as shown in display mode _M11 in FIG.
The content "LAP dIF" is displayed in the upper row (a ₁₂ ), and the lap difference time is displayed in the lower row (a ₁₃ ).

If O=1, i.e. the average lap mode M ₂
In this case, as shown in display mode _M21 in FIG. 5, the content "AV-LAP" is displayed in the upper row (a ₁₄ ), and the average lap time is displayed in the lower row (a ₁₅ ).

If Q or P=1, that is, in split taki mode or lap taki mode, the fifth
As shown in display mode _M31 or _M41 in the figure, the content "TACHY" is displayed in the upper row ( _a16 ). Then, it is determined whether P=1, that is, whether it is the raptaki mode M ₄ (a ₁₇ ), and P=
In the case of 1, as shown in display mode M ₄₁ , the lap taki data is displayed in the lower row (a ₁₈ ), while on the other hand, when P≠1
That is, when Q=1, the split taki data is displayed in the lower row as shown in display mode _M31 ( _a19 ).

Further, if the content of M is an odd number in step _a10 , it is determined which display mode is the same as in step _a1 ( _a20 ).

Here, if N=1, that is, wrap difference mode
In the case of M ₁ , as shown in display mode M ₁₂ in Fig. 5, the content "XXX-XXX" is displayed in the upper row to indicate the difference between the laps and the laps (a ₂₁ ). Display the lap difference time at the bottom (a ₁₃ ).

If O or Q=1 at step a ₂₀ ,
In other words, in the case of average lap mode _M2 or split taki mode _M3 , the display mode shown in Fig. 5
As shown in _M22 or _M32 , the content "STA-XXX" is displayed in the upper row to indicate the number of average laps or split take ( _a22 ). And whether O=1 or not,
In other words, it is determined whether the mode is average lap mode (a ₂₃ ), and if so, the average lap time is displayed in the lower row (a ₁₅ ), and if O≠1, that is, Q-1.
In this case, split taki data is displayed in the lower row (a ₁₉ ).

If P=1 in step a ₂₀ , that is, in the lap pattern mode M ₄ , the display mode M ₄₂
As shown in , the content "LAP XXX" to indicate the number of laps is displayed in the upper row (a ₂₄ ), and the lap taki data is displayed in the lower row (a ₁₈ ).

As is clear from steps _a8 and _a9 , the content of the content display switching register M switches between even and odd numbers every two seconds, so the content display on the upper row also changes from step _a12 to _a14 through step _a10 . a ₁₆ and steps a ₂₁ , a ₂₂ ,
It will switch between a and ₂₄ every 2 seconds.

Next, the operations of the above-mentioned keys S ₁ , S ₂ , S ₃ , S ₄ , and SL and the switching of the display mode when they are operated will be explained based on FIG. 5.

First, in reset mode _M5 , zero is displayed in the upper and lower rows. In this state, 0 is set in each of the registers X, Y, SR, LR, KR, M and each flag L, N, O, P, Q, S described above.

If you press key S ₁ in reset mode M ₅ ,
The mode switches to measurement mode _M6 , the stopwatch register SR starts measuring, and the elapsed time from the start of measurement is displayed on the upper and lower lines. The number "1" at the left end of the upper row indicates the number of laps. This number of laps is stored in the lap number storage register KR. If _S1 is pressed again in this state, the mode switches to measurement stop mode _M7 , measurement stops, and display operations on the upper and lower rows also stop. If the key _S1 is further pressed here, the mode is switched to the measurement mode _M6 and the measurement is restarted. Also, if key SL is pressed in mode _M7 , the mode switches to reset mode _M5 .

When key SL is pressed in measurement mode _M6 , the mode switches to lap and split mode _M8 , and the upper row displays the lap time and the lower row displays the split time. If you press key S ₁ in this state,
Switches to lap and split stop mode _M9 , and measurement stops without changing the display state. Press key S ₁ again for wrap and split mode
Switch to _M8 to restart measurement, and press key SL to cancel lap and split display.
Switches to measurement stop mode _M7 .

When key _S2 is pressed in each of the above modes _M5 to _M9 , the display mode flag L and lap difference mode flag N are set to 1, and the content display switching register M is set to 0 (see Figure 4). steps
b ₃ ), the display mode is switched to one display mode M ₁₁ of the lap difference modes M ₁ and a lap difference display is performed (steps a ₁₂ and a ₁₃ in FIG. 3). Part 2
Since M counts 1 after a second (a ₈ , a ₉ ), the display mode M ₁₁ is switched to the other display mode M ₁₂ (a ₂₁ , a ₁₃ ). In this way, in the lap difference mode _M1 , the display mode _M11 and the display mode _M12
switches every 2 seconds. Therefore, by looking at these two content displays, it can be easily seen that in the example of FIG. 5, the difference time between the second and third laps is 3 seconds.

If the key _S2 is pressed in the above-mentioned lap difference mode _M1 , the average lap mode flag O is set to 1 ( _b5 ), so the mode is switched to the average lap mode _M2 , and the average lap display is performed ( _a14 , _a15 , _a22 ). In this case, display mode M ₂₁ and display mode every 2 seconds
Since _M22 is switched, it can be easily seen that in the example of FIG. 5, the average lap time up to the third lap is 3 minutes 17 seconds 28.

If you press key S ₂ in wrap difference mode M ₂ ,
Since the split taki mode flag Q is set to 1 (b ₇ ), the mode switches to the split taki mode M ₃ and the split taki display is performed (a ₁₆ , a ₁₉ ,
_a22 ). Similar to the above, there are two display modes M ₃₁ ,
The M ₃₂ switches every two seconds, and in Figure 5 it can be immediately seen that the speed up to the three splits is 182.51 km/h.

When key _S2 is pressed in split taki mode _M3 , the split taki mode flag P is set to 1 ( _b9 ), so the switch to split taki mode _M4 is made.
A laptaki display is performed (a ₁₆ , a ₁₈ , a ₂₄ ). In this case as well, the two display modes M ₄₁ and M ₄₂ switch every 2 seconds, so the speed at the third lap is
You can know that it is 210.48Km/hour.

However, each of the above-mentioned split taki and wrap taki operations is performed using the distance memory register as described above.
Since this is performed based on the same distance data stored in the DR, for example, if the distance data is set for split taki, meaningless data will be displayed in the split taki display. However, since it is usually sufficient to obtain data for either split taki or rupture taki, it is sufficient to store the distance data required for either one in the register DR, and unnecessary displays (in the above example, You can ignore the display.

Now, if you press the key _S2 in the Laptop mode _M4 , the display mode flag L will be set to 0 ( _b10 ), so the display will switch to one of the above-mentioned modes _M5 to _M9 and display that mode. ( _a7 ).

On the other hand, if the key _S3 is pressed, the display mode is switched in the reverse order from the key _S2 by the key processing ( _b11 to _b20 ) shown in FIG. That is, from each of the above modes M ₅ to _{M 9} to Laptopaki mode M ₄ ,
Split tachy mode _M3 , average lap mode
M ₂ , switches to lap difference mode M ₁ and returns to mode
Return to _M5 - _M9 . In this case, each of the above modes M ₁
~The content display in the upper row of _M4 changes every 2 seconds.

Next, when the key _S4 is pressed in each of the display modes _M1 to _M9 described above, the key processing is performed ( _b21 ) and the mode is switched to the distance setting mode _M10 . In this mode, necessary distance data can be set in either the split taxi mode _M3 or the lap taxi mode _M4 described above in order to display the taxi data. After completing the settings, press the key S ₄ again to return to the previous display mode.
Switches from M ₁ to _{M 9} . Therefore, laptaki mode
When the tachymeter is displayed in M ₄ or split tachy mode M ₃ , you can also switch to distance setting mode M ₁₀ and set new distance data, and then each tachymeter will be displayed based on the new distance data. Display is performed. That is, the distance data can be set sequentially when any tachymeter display is required.

In the above embodiment, the content display for explaining the various measurement information displayed in the lower row was performed using two types of data that alternately switch in the upper row, but it is possible to switch and use three or more types of data. This allows for more specific display. Furthermore, the display functions of the upper and lower rows may be interchanged.

[Effect of idea]

As explained above, according to the present invention, both the split tachymeter data and the split tachymeter are displayed based on the same distance data, so the storage means for the distance data can be shared, and therefore the waste of the circuit is reduced. do not have. For example, as the above storage means
Devices that use RAM require less storage capacity, and as a result, the device can be made lower in price and smaller in size.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing the circuit configuration of an embodiment of the present invention, FIG. 2 is a diagram showing the specific internal configuration of the RAM according to the embodiment, and FIG. 3 is a diagram showing the processing operation of the embodiment. Flowchart, Fig. 4 is a flowchart specifically showing the key processing shown in Fig. 3, Fig. 5
The figure is a diagram showing changes in display mode due to key operations. 1...ROM, 3...RAM, X...upper display register, Y...lower display register, SR...stop watch register, LR...lap memory register, KR...lap count memory register, L...
...display mode flag, M...content display switching register, N...lap difference mode flag, O...average lap mode flag, P...lap taki mode flag, Q...split taki mode flag, S... …
Distance setting mode flag.

Claims (1)

[Scope of Claim for Utility Model Registration] A stopwatch device comprising a time data measuring means for measuring time data after the start of measurement and a lap time display means for displaying a lap time, comprising: a distance data storage means for storing distance data; , a first step of obtaining average speed data after the start of measurement from the time data obtained by the time data measuring means and the distance data stored in the distance data storage means;
a second calculating means for obtaining average speed data at the lap time from the lap time and the distance data stored in the distance data storage means; the first calculating means and the second calculating means; 1. A stopwatch device comprising: average speed display means for displaying average speed data obtained by.