JPH0743479A - Timekeeper - Google Patents

Abstract

PURPOSE:To lessen indication errors caused by backlash in a timekeeper using pointers capable of normal and reversal rotation. CONSTITUTION:When a lock time mode is switched on with a mode switch 141, a control circuit is allowed to indicate 0:00 with an hour hand 8 and a minute hand 9. At this time in the rotation direction of the hour hand 8 and the minute hand 9 in a case where the present indication position of a pointer is within 0-20 minutes, the normal rotation of one pulse part is performed and a target position is indicated after the reversal rotation of an excess part of the one pulse part is performed from the position of 00 minutes and in another case except for the above case the normal rotation is conducted and indication is carried out. Next, in the case where an existing time is indicated, in the rotation direction of the hour hand 8 and the minute hand 9 the normal rotation is performed, in the other case except for the above case the same reversal rotation as the above-mentioned case is conducted and the existing time is shown.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timepiece that displays the present time and the like by means of a pointer that can be rotated in the normal and reverse directions.

[0002]

2. Description of the Related Art Conventionally, there are commercially available timepieces which use a pointer capable of rotating in the forward and reverse directions to switch and display environmental information such as atmospheric pressure and temperature in addition to the time. In this type of display, when switching the display, it is judged from the current pointer position and the pointer position after switching whether it is faster to rotate the pointer in the forward or reverse direction, It determines the direction of rotation.

[0003]

However, the stop position of the pointer is misaligned between the forward rotation and the reverse rotation due to the backlash of the train wheel or the like. Therefore, for example, when switching from the time display to the environmental information display, a display error occurs between the case of switching in the forward rotation and the case of switching in the reverse direction, and there is a problem that the accurate environmental information display cannot be performed.

An object of the present invention is to reduce a display error due to backlash in a timepiece using a pointer capable of rotating in the forward and reverse directions.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a pointer for displaying the current time, a forward / reverse step motor, a train wheel for transmitting the rotation of the step motor to the pointer, and a fast-forward hand for moving the pointer. At this time, the above object is achieved by providing a control means for rotating the step motor in a specific one direction to move the pointer to a desired position.

[0006] It is desirable that the above-mentioned pointer is selectively switched between the current time and other information to be displayed. Further, the pointer for displaying the current time, a forward / reverse step motor, and the above-mentioned The train wheel that transmits the rotation of the step motor to the pointer and the needle for fast-forwarding the needle,
When the position to move the pointer is within a desired range with respect to the position of the pointer before the needle is moved, the step motor is rotated in a direction opposite to the specific one direction, and then the pointer is moved to the specific one direction. The above-mentioned object is achieved by providing a control means for rotating the pointer to move to the desired position.

Furthermore, a pointer for displaying the current time, a step motor capable of forward and reverse rotations, a train wheel for transmitting the rotation of the step motor to the pointer, and a needle for fast-forwarding the pointer should be moved. When the position is within a desired range with respect to the position of the pointer before hand movement, the step motor is rotated in the opposite direction to the specific one direction, and then the pointer is rotated in the specific one direction to rotate the pointer. To move to the desired position, and if the position to move the pointer is outside the desired range with respect to the position of the pointer before moving the needle, rotate the step motor in one specific direction to move the pointer to the desired position. The above-mentioned object is achieved by providing a control means for moving the needle.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on an embodiment shown in the drawings.

In FIG. 1, reference numeral 1 is a reference signal generating circuit,
It consists of a crystal oscillator, frequency divider, etc. and generates a reference clock signal.

Reference numeral 2 is a clock circuit, which is composed of a RAM or the like, and measures the current time based on the reference clock signal output from the reference signal generating circuit 1.

Reference numeral 3 is a control circuit which constitutes a control means, and is CP
It consists of U, ROM, RAM and A / D conversion circuit,
Controls various operations.

Numerals 4 and 5 are step motors capable of forward and reverse rotation,
The motor drive pulse output from the control circuit 3 is received to perform forward / reverse rotation.

Wheel trains 6 and 7 transmit the rotations of the step motors 4 and 5 to the hour hand 8 and the minute hand 9, respectively. In this example, the hour hand 8 and the minute hand 9 are used to display the current time and the degree of comfort, the hour hand 8 displays the humidity, and the minute hand 9 displays the temperature. The hour hand 8 and the minute hand 9 constitute a pointer.

Reference numeral 10 denotes an hour hand detection circuit, which is composed of a photo interrupter or the like, and detects a reflection plate (not shown) provided on a rotary plate (not shown) that rotates in conjunction with the hour hand 8.
In this example, the photo interrupter is formed at a position where the reflector can be detected when the hour hand 8 displays 0:00. Therefore, the hour hand detection circuit 10 generates a detection output when the hour hand 8 displays 0:00.

Reference numeral 11 denotes a minute hand detecting circuit, which is composed of a photo interrupter or the like as described above, and is provided on a rotating plate (not shown) which rotates in conjunction with the minute hand 9 and which is provided with a reflecting plate (not shown).
To detect. In this example, the photo interrupter is formed at a position where the reflector can be detected when the minute hand 9 displays 0 minute. Therefore, the minute hand detection circuit 11 generates a detection output when the minute hand 9 displays 0 minute.

Reference numeral 12 denotes an hour hand position counter, which is an up-down counter, counts motor drive pulses output to the step motor 4 by the control circuit 3 to move the hour hand 8, and indicates the display position of the hour hand 8. It should be noted that it is reset by the detection output generated by the hour hand detection circuit 10.

Reference numeral 13 denotes a minute hand position counter, which is an up / down counter similar to the above, and counts a motor drive pulse output to the step motor 5 for the control circuit 3 to move the minute hand 9 to display the position of the minute hand 9. Instruct. Note that the minute hand detection circuit 11 is reset by the detection output generated.

Reference numeral 14 denotes an input section, which is a mode changeover switch 141 for selecting "time set-hour mode", "time set-minute mode", "lock-time mode", and "lock-temperature / humidity mode" and a timing switch. The up key 142, the down key 143, and the like that configure the above. In this example, "time set-hour mode" and "time set-minute mode" are set modes, and "lock-time mode" and "lock-temperature / humidity mode" are set as lock modes. Further, when the mode changeover switch 141 is switched, a one-pulse mode change signal is generated.

A temperature sensor block 15 is composed of a temperature sensor or the like and outputs detection data according to the ambient temperature.

A humidity sensor block 16 is composed of a humidity sensor or the like and outputs detection data according to the ambient humidity.

A temperature data storage circuit 17 is composed of an A / D conversion circuit, a ROM, etc.
The temperature data corresponding to the detection data output from is stored.

A humidity data storage circuit 18 is composed of an A / D conversion circuit, a ROM and the like, and the humidity sensor block 16 is provided.
Humidity data corresponding to the detection data output from is stored.

A constant voltage block 19 supplies a constant voltage to each circuit.

Reference numeral 20 is a monitor switch.

A time storage circuit 21 is used when the display is temporarily switched, and is composed of a RAM or the like.

A display unit 22 selectively displays the current time, temperature, humidity, and comfort level with the hour hand 8 and the minute hand 9.

Next, the operation when the power is turned on will be described.

When the power is turned on, the control circuit 3 steps until the hour hand detection circuit 10 and the minute hand detection circuit 11 generate detection outputs, that is, until the hour hand 8 and the minute hand 9 display 0:00. The motors 4 and 5 are operated in a fixed direction.

When 0:00 is displayed by the hour hand 8 and the minute hand 9, the hour hand detection circuit 10 and the minute hand detection circuit 11 generate detection outputs, and the hour hand position counter 12 and the minute hand position counter 13 are set to "0". Reset. That is, the display position of the hour hand 8 and the instruction output of the hour hand position counter 12, and the display position of the minute hand 9 and the instruction output of the minute hand position counter 13 are matched. On the other hand, when detection outputs are generated from both the hour hand detection circuit 10 and the minute hand detection circuit 11, the control circuit 3 resets the clock time of the clock circuit 2 to 0:00 and starts clocking. Therefore, the time displayed by the hour hand 8 and the minute hand 9 and the time measured by the clock circuit 2 are matched. After that, the control circuit 3 moves the hour hand 8 and the minute hand 9 according to the time measured by the clock circuit 2. In this example, the hour hand 8 advances every 3 minutes for 3 minutes, and the minute hand 9 advances every 15 seconds for 15 seconds.

Next, the operation will be described with reference to FIGS.

The control circuit 3 determines that the second value of the clock circuit 2 is 0 second, that is, every 1 minute (step 2a),
Set the measurement request flag to "1" (step 2)
b). This is so that temperature and humidity can be measured every minute.

Then, the seconds value of the clock circuit 2 is 0 seconds, 15 seconds.
In seconds, 30 seconds, and 45 seconds (step 2c), when the current time is displayed and the normal hand movement flag is set to "1" (step 2d), that is, the mode is "time set-hour mode", " If the up key 142 or the down key 143 is not operated in the "time set-minute mode", or if the "lock-time mode" is set, the control circuit 3 outputs a count-up designation signal to the minute hand position counter 13. In addition to outputting the count-up state, a motor drive pulse is output to the step motor 5 to move the minute hand 9 for 15 seconds (step 2e). At this time, the minute hand position counter 13 counts the motor drive pulse output from the control circuit 3 to the step motor 5 and increments the count value by 1 (step 2f).

In this example, when the control circuit 3 outputs a motor drive pulse for moving the hour hand 8 and the minute hand 9 clockwise, a count-up designation signal is output to the hour hand position counter 12 and the minute hand position counter 13. Then, when outputting a motor drive pulse for moving the hour hand 8 and the minute hand 9 in the counterclockwise direction, a countdown designating signal is output to the hour hand position counter 12 and the minute hand position counter 13.

Further, the normal hand movement flag is a flag for permitting the hand movement for displaying the current time. When the normal hand movement flag is "1", the hand movement for displaying the current time is performed.

Next, the control circuit 3 outputs a count-up designating signal to the hour hand position counter 12 every time the minute value of the clock circuit 2 counts 3 minutes (step 2g) to bring it into the count-up state. A motor drive pulse is output to the motor 4 to move the hour hand 8 for 3 minutes (step 2h). At this time, the hour hand position counter 12 counts the motor drive pulse output from the control circuit 3 to the step motor 4 and adds 1 to the count value (step 2i).

The time measurement for 3 minutes is executed as follows.
The control circuit 3 reads the time data of the clock circuit 2, stores the time data obtained by adding 3 minutes to the read time data in the RAM in the control circuit 3, and stores the time data and the clock circuit 2
This is carried out by detecting a match with the time data measured by, and if a match is detected, the clock circuit 2
The time data is read from, the time data is added to this, 3 minutes is newly stored in the RAM in the control circuit 3, and the time data is compared with the time data of the clock circuit 2 to measure the time every 3 minutes.

In step 2d, if the normal hand movement flag is "0" and the current time is not displayed, the time movement is not performed. In this case, the clock of the clock circuit 2 continues.

Subsequently, the control circuit 3 operates the monitor switch 20.
If it is on, the demonstration operation shown in FIGS. 5 and 6 (hereinafter referred to as a demonstration operation) is performed.

When the monitor switch 20 is not operated and the mode switch 141 is in the set mode ("time set-
If the "hour mode" or "time set-minute mode" is designated (step 2k), the timing operation shown in FIG. 3 is performed.

If the monitor switch 20 is not operated and the mode switch 141 does not specify the set mode (steps 2j, 2k), that is, if the lock mode is specified, the operation after A shown in FIG. Do.

Next, the timing operation will be described with reference to FIG.

Up key 142 or down key 143
Is operated (step 3a), the control circuit 3 resets the normal hand movement flag to "0" to stop the hand movement displaying the current time (step 3b), and stops the timekeeping operation by the clock circuit 2. To do.

When the "time set-hour mode" is set by the mode switch 141 (step 3c), the control circuit 3 sends a count-up designating signal when the up key 142 is operated, and the down key 143. When operated, a countdown designating signal is output to the hour hand position counter 12 to designate up / down of counting, and when the up key 142 is operated, the hour hand 8
Is output to the step motor 4 for forward rotation of 1 hour (clockwise in this example), and when the down key 143 is operated, the hour hand 8 is set to 1
Reverse rotation only for time (in this example, the direction is counterclockwise)
The motor drive pulse to be output is output to the step motor 4 to move the hour hand 8 for 1 hour (step 3d).

When performing the reverse rotation, the hand is moved by one pulse more than the target time position, and then the forward rotation is performed by one pulse to adjust to the target time position.

Even in the case of the reverse rotation as described above, since the hand movement is always completed by the normal rotation, the display error due to the backlash of the train wheel can be eliminated.

At this time, since the hour hand position counter 12 counts the motor drive pulses input to the step motor 4, it has a count value according to the display time of the hour hand 8.

Then, the control circuit 3 causes the time value in the clock circuit 2 to match the count value of the hour hand position counter 12. Therefore, the display time of the hour hand 8 and the time value in the clock circuit 2 can be matched.

At this time, if the display position of the minute hand 9 is not the right minute position (step 3e), the minute hand 9 is moved to the nearest right minute position in the direction opposite to the normal hand movement and the second digit is discarded (step 3f). ). In this case as well, the reverse rotation is additionally performed by one pulse, and then the normal rotation is performed by one pulse to adjust the position to the normal position. This rounds down the seconds to start a zero second. As a result, the time to be adjusted becomes an exact minute, and accurate time adjustment that is easy for the user to understand can be performed.

If the mode switch 141 is not changed to the "lock-time mode" (step 3)
g), returning to step 3a, the same operation as described above is performed, and the hour hand 8 is moved by ± 1 hour each time the up key 142 or the down key 143 is operated, and the hour hand 8 is adjusted to the desired time position.

In step 3c, "Time set-
If the "minute mode" is set, the control circuit 3
And when the minute hand 9 is rotated in the forward direction, a count-up designating signal is output, and when the hour hand 8 and the minute hand 9 are rotated in the reverse direction, a count-down designating signal is output to the minute hand position counter 13 and the hour hand position counter 12 to specify the count up / down. To do. Then, when the up key 142 is operated, a motor drive pulse for positively rotating the minute hand 9 to the position of the next minute is output to the step motor 5, and when the down key 143 is operated, the minute hand 9 is moved to the immediately preceding position. After outputting a motor drive pulse for reverse rotation to a position one pulse before the position of the positive minute to the step motor 5, the motor drive pulse of the normal rotation is output to move the minute hand 9 to the positive position (step 3).
h).

At this time, since the minute hand position counter 13 counts the motor drive pulse input to the step motor 5, it has a count value according to the display time of the minute hand 9.

Then, the control circuit 3 matches the minute value in the clock circuit 2 with the count value of the minute hand position counter 13.
Therefore, the display time of the minute hand 8 and the value of the minute in the clock circuit 2 can be matched.

Further, the control circuit 3 moves the hour hand 8 to the display position corresponding to the display position of the minute hand 9.

Specifically, the hour hand 8 is moved as described above according to the count value of the minute hand position counter 13. This operation is a known technique and will not be described in detail. This allows the minute hand 9
The display positions of the hour hand 8 and the hour hand 8 can be matched, and the minute value and the hour value in the clock circuit 2 can be matched (step 3i).

Timing is performed by repeating the above steps 3a to 3g.

When the timing is finished, the mode switch 141
Is set to "lock-time mode", the control circuit 3 sets the normal hand movement flag to "1" to permit the movement of the current time (step 3j), and the second value of the clock circuit 2 is set to 0 second. To clear the clock circuit 2 to start clocking, and
Move to B (step 3k).

Therefore, the mode is "lock-time mode".
If it is set to 1, the hand movement flag is normally set to "1", so that the minute hand 9 moves for 15 seconds each time the clock circuit 2 measures 15 seconds, and the hour hand 8 moves for 3 minutes every 3 minutes.
Only move the minute.

Next, the operation after A in FIG. 2 will be described with reference to FIG.

First, the operation when the mode is switched to the "lock-time mode" will be described. in this case,
Display 0:00 once and switch to the display of the current time.

More specifically, since the mode change signal is input from the input unit 14, the control circuit 3 determines that the mode has changed (step 4a) and sets the measurement request flag to "1" (step 4b). The normal hand movement flag is reset to "0" to prohibit the normal hand movement (step 4c), and the hand movement for displaying 0:00 on the hour hand 8 and the minute hand 9 is started (step 4d).

Specifically, the hour hand 8 outputs a motor drive pulse to the step motors 4 and 5 until the hour hand detection circuit 10 produces a detection output, and the minute hand 9 outputs a motor drive pulse until the minute hand detection circuit 11 produces a detection output. To move each hand (Step 4
e, 4f) and 0:00 are displayed. Hour hand 8 in this case
With respect to the hand movement direction of the minute hand 9, when one round is 60 minutes, the pointer is rotated in the reverse direction if the pointer is within 0 to 20 minutes, and is rotated in the normal direction if the pointer is in any other position. In the case of reverse rotation, similarly to the above, the reverse rotation is additionally performed by one pulse and then the normal rotation is performed by one pulse to display the target position.

By the steps 4e and 4f, the hour hand 8 is set to 0:
When 00 is displayed, the hour hand position counter 12 is reset by the detection output generated by the hour hand detection circuit 10, and the display position of the hour hand 8 and the count value of the hour hand position counter 12 are matched. Then, when the minute hand 9 displays 0 minute, the minute hand position counter 13 is reset by the detection output generated by the minute hand detection circuit 11, and the count values of the minute hand 9 and the minute hand position counter 13 are adjusted in the same manner as described above (step). 4g).

0:00 is displayed by the hour hand 8 and the minute hand 9,
When the hour hand position counter 12 and the minute hand position counter 13 are reset, since the mode is "lock-time mode" (step 4h), the measurement request flag is reset to "0" (step 4i), and the normal hand movement flag is set. "1"
To allow normal time movement (step 4
j) Similarly to the above, the motor drive pulses are output to the step motor 4 and the step motor 5 until the minute and hour values of the clock circuit 2 and the count values of the hour hand position counter 12 and the minute hand position counter 13 match. Then, the hour hand 8 and the minute hand 9 are moved. That is, the current time is displayed by the hour hand 8 and the minute hand 9 (step 4k). Hour hand 8 at this time
With respect to the hand movement direction of the minute hand 9, when one turn is set to 60 minutes, when the target position is within 0 to 40 minutes, the hand is rotated forward, and in the other cases, the reverse rotation hand movement similar to the above is performed. Less than,
2B, the same operation as above is performed.

When the mode is held in the "lock-time mode", the minute hand 9 is moved every 15 seconds, and the hour hand 8 is moved every 3 minutes.

Next, the mode is "lock-temperature / humidity mode".
The operation in the case of switching to will be described.

In this case, the operation is performed in the same manner as described above, and once 0:
After displaying 00 (step 4h), the display is switched to temperature and humidity.

Then, the normal hand movement flag is reset to "0" and the hand movement for displaying the present time is prohibited (step 4m).

In this case, since the measurement request flag is set to "1" in step 4b (step 4n),
The temperature sensor block 15 and the humidity sensor block 16 are operated to output detection data corresponding to temperature and humidity, and the temperature data storage circuit 17 and the humidity data storage circuit 18 output the temperature data corresponding to the detection data and Input humidity data to the control circuit 3 (step 4
p).

The control circuit 3 calculates a known discomfort index from the input temperature data and humidity data, and the control circuit 3
It is stored in the internal RAM (step 4q).

Since the temperature and humidity have been measured, the measurement request flag is reset to "0" (step 4r), and the display position data (humidity display data) of the hour hand 8 corresponding to the input temperature data and humidity data is set. The display position data (temperature display data) of the minute hand 9 is calculated and obtained, and the control circuit 3
It is stored in the internal RAM.

Subsequently, it is judged whether the count value of the hour hand position counter 12 matches the display position data (humidity display data) of the hour hand 8 stored in the RAM. If they do not match, the step motor 4 is driven by the motor. A pulse is output to move the hour hand 8 and the count value of the hour hand position counter 12 is changed. At this time, the hand movement direction of the hour hand 8 and the hand movement operation at the time of reverse rotation are the same as above. Then, similarly to the above, the count value of the hour hand position counter 12 is compared with the display position data of the hour hand 8 (display data of humidity).

When the count value of the hour hand position counter 12 and the display position data (humidity display data) of the hour hand 8 match, the control circuit 3 judges that the hour hand 8 has reached the display position corresponding to the measured humidity. , The output of the motor drive pulse to the step motor 4 is stopped.

Further, in synchronization with the movement of the hour hand 8 described above, the temperature is displayed by the minute hand 9. Specifically, similarly to the above, a motor drive pulse is applied to the step motor 5 until the display position data (temperature display data) of the minute hand 9 stored in the RAM of the control circuit 3 and the count value of the minute hand position counter 13 match. After outputting, the minute hand 9 is moved and a display corresponding to the measured temperature is performed (step 4s). In this case, the hand movement direction of the minute hand 9 and the hand movement operation at the time of reverse rotation are the same as above. Thereafter, the process moves to B in FIG. 2 and the same operation as above is performed. In this case, since the normal hand movement flag is "0", the hour hand 8 and the minute hand 9 do not move the current time, but the temperature and humidity are displayed.

When the mode is held in the "lock-temperature / humidity mode", the measurement request flag is set every one minute, so the temperature and humidity are measured and displayed every one minute. And calculate the comfort level.

As described above, since the current time, temperature and humidity are selectively displayed by the common pointer, the number of parts can be reduced and the cost can be reduced.

Moreover, when the display is switched and the pointer is rotated in the reverse direction, the last hand movement is forward rotation, so
It is possible to eliminate the display error due to the backlash of the train wheel.

Next, the demonstration operation will be described with reference to FIGS.

In this example, in the "lock-time mode", that is, when the current time is displayed (see FIG. 7).
When the monitor switch 20 is operated on, 0:00 is temporarily displayed, then temperature and humidity are displayed for 10 seconds (see FIG. 8), 0:00 is displayed again, and then the comfort level is displayed. The display is displayed for 7 seconds (see FIG. 9), 0:00 is displayed again, and then the current time is displayed (see FIG. 7). The demo operation is performed, and the monitor switch 2 is activated in the “lock-temperature / humidity mode”.
When 0 is operated, 0:00 is once displayed as in the above, then the comfort level is displayed for 7 seconds (see FIG. 9), and 0: is displayed again.
00 is displayed, then the current time is displayed for 10 seconds (see FIG. 7), 0:00 is displayed again, and then the temperature and humidity are displayed again (see FIG. 8). .

7 to 9 show the display modes of the display unit 22. FIG. 7 shows the current time, FIG. 8 shows the temperature and humidity, and FIG. 9 shows the comfort level. It is the figure shown.

When the demo operation is started, the control circuit 3 judges whether the mode switch 141 is in the lock mode (step 5a). If it is not the lock mode, the operation of B of FIG. 2 is started.
That is, even if the monitor switch 20 is operated in the set mode, the demo operation is not performed.

In the lock mode, the normal hand movement flag is reset to "0" and the normal hand movement is stopped (step 5).
b) In the same manner as above, 0:00 is displayed and the hour hand position counter 12 and the minute hand position counter 13 are reset (steps 5c, 5d, 5e, 5f).

When 0:00 is displayed by the hour hand 8 and the minute hand 9, and the hour hand position counter 12 and the minute hand position counter 13 are reset, the control circuit 3 causes the temperature sensor block 15 and the humidity sensor block 16 to operate as described above. Are operated to output detection data corresponding to temperature and humidity, and temperature data and humidity data corresponding to the detection data are input from the temperature data storage circuit 17 and the humidity data storage circuit 18 to the control circuit 3 ( Step 5g).

The control circuit 3 calculates the comfort level from the input temperature data and humidity data in the same manner as above, stores the obtained comfort level data in the RAM therein (step 5h), and inputs the temperature data. Display position data of the hour hand 8 (display data of humidity) and display position data of the minute hand 9 (display data of temperature) according to the humidity data are calculated and obtained, and stored in the RAM therein.

If it is the "lock-time mode" (step 5i), the display is switched and the humidity is adjusted by the hour hand 8.
The temperature is displayed by the minute hand 9 (steps 5j, 5k). The movement of the hour hand 8 and the minute hand 9 in this case is the same as the above, the display position data (the humidity display data) of the hour hand 8 and the display position data (the temperature display) of the minute hand 9 stored in the RAM in the control circuit 3. (Data) until the count value of the hour hand position counter 12 and the count value of the minute hand position counter 13 match.

When the temperature and humidity are displayed by the hour hand 8 and the minute hand 9, the control circuit 3 reads the current time data measured by the clock circuit 2 and adds the time data obtained by adding 10 seconds to the time data. It is stored in the storage circuit 21 (step 5m).

The control circuit 3 compares the clocked time of the clock circuit 2 with the time stored in the time storage circuit 21 and detects a coincidence, that is, 10 seconds after the temperature and humidity are displayed by the hour hand 8 and the minute hand 9. Is passed (step 5n),
The control circuit 3 uses the hour hand 8 and the minute hand 9 at 0:00 as in the above.
Is displayed and the hour hand position counter 12 and the minute hand position counter 13 are reset. As a result, the display position of the hour hand 8 and the count value of the hour hand position counter 12, and the display position of the minute hand 9 and the count value of the minute hand position counter 13 are matched (steps 5p, 5q, 5r, 5s). Below, FIG.
The operations after C are performed. Therefore, the operation after C will be described with reference to FIG.

The hour hand position counter 12 is displayed by displaying 0:00.
When the minute hand position counter 13 is reset, the control circuit 3 causes the step motors 4 and 5 to drive the motor drive pulse so that the comfort level data stored in the RAM therein is displayed so that the hour hand 8 and the minute hand 9 overlap each other. Is output (step 6
a).

When displaying one position in this way,
Since the hour hand 8 and the minute hand 9 are overlapped and displayed, the display state can be accurately confirmed.

This hand movement is executed until the hour hand position counter 12 and the minute hand position counter 13 count a value corresponding to the comfort level data. In this case, the hand movement operation of the hand movement direction and the reverse rotation is the same as the above, when one rotation is set to 60 minutes, when the target position is within 0 to 40 minutes, the forward rotation is performed, otherwise the above operation is performed. Reverse rotation similar to.

When the comfort level is displayed (step 6b), the control circuit 3 reads out the current time data measured by the clock circuit 2 in the same manner as above, and stores the time data obtained by adding 7 seconds to the read time data. It is stored in the circuit 21 (step 6c). At this time, the time storage circuit 21 stores the time data obtained by adding 7 seconds after clearing the previously stored time data.

When the control circuit 3 compares the clocked time of the clock circuit 2 with the time stored in the time storage circuit 21 and detects a match, that is, 7 seconds after the comfort level is displayed by the hour hand 8 and the minute hand 9. When the time has elapsed (step 6d), the hour hand 8 and the minute hand 9 display 0:00 in the same manner as described above (steps 6e, 6f, 6g, 6h), and then the control circuit 3 sets the hour value of the clock circuit 2 to the hour hand. The motor drive pulse is output to the step motor 4 until the count value of the position counter 12 matches, and the motor drive pulse is output to the step motor 5 until the count value of the minute hand position counter 13 matches the minute value of the clock circuit 2. (Step 6i).

When the count values of the hour hand position counter 12 and the minute hand position counter 13 match the hour and minute values of the clock circuit 2 (step 6j), the control circuit 3 judges that the present time is displayed by the hour hand 8 and the minute hand 9. Then, the normal hand movement flag is set to "1" and the process returns to B in FIG. 2 to perform the same operation as above (step 6k).

In this case, since the normal hand movement flag is "1", the minute hand 9 moves every 15 seconds and the hour hand 8 moves every 3 minutes.

Thus, before returning to the current time display,
Since 0:00 is displayed and the count values of the hour hand position counter 12 and the minute hand position counter 13 are aligned with the display positions of the hour hand 8 and the minute hand 9, the current time can be displayed accurately.

Returning to FIG. 5, "Lock-temperature / humidity mode"
If so (step 5i), the hour hand 8 and the minute hand 9 are overlapped and the comfort level is displayed similarly to the above (step 5t).

When the comfort level is displayed (step 5u),
Similarly to the above, the time data obtained by adding 7 seconds to the current time is stored in the time storage circuit 21 (step 5v), and when the stored time data and the time data of the clock circuit 2 match,
That is, when 7 seconds have elapsed after displaying the comfort level (step 5w), 0:00 is displayed (step 5x,
5y, 5z, 5α).

Thereafter, the operations after D in FIG. 6 are performed. Therefore, the operation after D will be described with reference to FIG.

The control circuit 3 displays the current time measured by the clock circuit 2 with the hour hand 8 and the minute hand 9 in the same manner as described above (step 6m), and displays the hour hand 8 and the minute hand 9 at the current time display position. When the hand is moved (step 6n), the timekeeping data of the clock circuit 2 is read in the same manner as above, 10 seconds is added to the read time data, and the time data is stored in the time storage circuit 21 (step 6p).

Then, similarly to the above, when the time data of the clock circuit 2 and the time data stored in the time storage circuit 21 are compared and a match is detected, that is, when 10 seconds have elapsed after displaying the current time (step 6q). , 0:00 is displayed again (steps 6r, 6s, 6t, 6u), the humidity is displayed by the hour hand 8 and the temperature is displayed by the minute hand 9 (step 6v), and an accurate display is performed (step 6w). ), And returning to B in FIG. 2, the same operation as above is performed. In this case, since the normal hand movement flag is "0", the minute hand 9
The temperature and humidity are displayed without moving the hand every 15 seconds or moving the hour hand 8 every 3 minutes.

Also in this case, the display positions of the hour hand 8 and the minute hand 9 and the hour hand position counter 12 are displayed before the temperature and humidity are displayed.
Since the count value of the minute hand position counter 13 is adjusted,
The temperature and humidity can be displayed accurately.

As described above, since the current time, temperature, humidity, and comfort level are displayed by the hour hand 8 and the minute hand 9, a plurality of displays can be performed in one display space, so that the display space can be reduced and the clock can be displayed. There is no restriction on the overall size.

Further, since the humidity is displayed by the hour hand 8 and the temperature is displayed by the minute hand 9 at the same time, the user can recognize two different information at a time.

By operating the monitor switch, information different from the currently displayed information is displayed for a desired time. Therefore, the performance is excellent, and the temperature, humidity, current time, You can check the comfort level.

Moreover, when the display is switched, the actual display positions of the hour hand 8 and the minute hand 9 are made to coincide with the count values of the hour hand position counter 12 and the minute hand position counter 13, so that the counter values of the respective counters can be controlled. The hour hand 8 and the minute hand 9 can be moved to desired display positions. Therefore, even when the display is switched, it is possible to prevent erroneous display due to missing pulses or the like.

If only the comfort level is displayed, the hour hand 8
Since the minute hand 9 and the minute hand 9 are displayed in an overlapping manner, the displayed contents can be easily confirmed.

In the above, an example in which the current time, temperature, and humidity are switched and displayed is shown, but an example in which the current time, weather forecast, and atmospheric pressure are switched and displayed will be described next.

In FIG. 10, 144 is a mode switch for selecting "time set-hour mode", "time set-minute mode", "lock-weather mode", and "lock-time mode". Reference numeral 23 is an atmospheric pressure sensor. An atmospheric pressure data storage circuit 24 is composed of an A / D conversion circuit, a ROM and the like, and stores atmospheric pressure data according to the detection data output from the atmospheric pressure sensor 23. A display unit 25 includes an hour hand 8 and a minute hand 9 for selectively displaying the current time, weather forecast, and atmospheric pressure. The same numbers as in FIG. 1 are the same.

Next, the operation will be described with reference to FIG.
The operation when the power is turned on and the timing operation are the same as in the above embodiment.

After the power is turned on and the same operation as described above is performed, the control circuit 3 reads out the current time data measured by the clock circuit 2, and the data obtained by adding 10 minutes to the read time data is stored in the control circuit 3. Stored in RAM.

The clocked time data of the clock circuit 2 is the control circuit 3
When it matches the time data stored in the internal RAM, that is, when 10 minutes have passed (step 11a), the atmospheric pressure sensor 2
3 is operated. The atmospheric pressure sensor 23 outputs detection data corresponding to the atmospheric pressure, the atmospheric pressure data is read from the atmospheric pressure data storage circuit 24 based on the detected data, and is input to the control circuit 3 (step 11b).

The control circuit 3 calculates the display position data (display data of atmospheric pressure) of the hour hand 8 according to the input atmospheric pressure data and stores it in the RAM therein, and also the weather forecast data (minute hand 9) from the input atmospheric pressure data. Display position data) is calculated and stored in the RAM in the same manner as described above (step 11c). It should be noted that the weather forecast data is for forecasting the weather, for example, 8 hours after the transition of the past atmospheric pressure data.

When the control circuit 3 detects the time coincidence, the current time data is read from the clock circuit 2 and the time data obtained by adding 10 minutes to the current time data is newly stored in the RAM in the control circuit 3 as described above. To do. That is, every 10 minutes, the control circuit 3 detects the coincidence of the time data and measures the atmospheric pressure.

Similarly to the above, when the normal hand movement flag is set to "1", the minute hand 9 is moved every 15 seconds and the hour hand 8 is moved every 3 minutes.

When the monitor switch 20 is turned on (step 11k), the demonstration operation shown in FIG. 13 is performed.

When the monitor switch 20 is not operated and the mode switch 144 is in the set mode ("time set-
If the "hour mode" or "time set-minute mode" is designated (step 11m), the timing operation shown in FIG. 3 is performed in the same manner as above.

If the monitor switch 20 is not operated and the mode switch 144 does not specify the set mode (steps 11k and 11m), that is, if the lock mode is specified, the operation after E shown in FIG. 12 is performed. Do.

Next, the operation after E in FIG. 11 will be described with reference to FIG.

The operation when the mode is switched to the "lock-time mode" and the operation when the mode is held in the "lock time mode" are the same as those in the above embodiment.

As for the operation when the mode is switched to the "lock-weather mode", 0:00 is once displayed as in the above embodiment, and the normal hand movement is prohibited as in the above (step 1).
2j) The weather forecast and atmospheric pressure are displayed by the hour hand 8 and the minute hand 9.

A concrete method of displaying the weather forecast and the atmospheric pressure is to move the hour hand 8 until the display value data of the hour hand 8 stored in the RAM in the control circuit 3 matches the count value of the hour hand position counter 12. The atmospheric pressure is displayed, and at the same time as this operation, the minute hand 9 is moved until the count value of the minute hand position counter 13 matches the display position data of the minute hand 9 stored in the RAM in the control circuit 3, and the weather forecast is displayed. The hand movement direction of the pointer and the hand movement operation in the reverse rotation are the same as those in the above embodiment.

When the mode is held in the "lock-weather mode", the weather forecast display and the atmospheric pressure display are updated every 10 minutes.

Next, the demonstration operation will be described with reference to FIG.

In this example, "lock-time mode"
When the monitor switch 20 is operated at the time of, that is, while the current time is displayed (see FIG. 14), it is once 0:
00, then displays the weather forecast and atmospheric pressure for 10 seconds (see FIG. 15), displays 0:00 again, and returns to the current time display (see FIG. 14).
When the monitor switch 20 is operated in the "lock-weather mode", 0:00 is displayed once as in the above case, then the current time is displayed for 10 seconds (see FIG. 14), and 0:00 is again displayed. Is displayed to return to the weather forecast and the atmospheric pressure display (see FIG. 15) for demonstration operation.

14 and 15 show the display mode of the display unit 25. FIG. 14 is a diagram showing the current time and FIG. 15 is an example showing the atmospheric pressure and the weather forecast. .

In the set mode when the monitor switch 20 is operated, the process returns to F in FIG. 11 and the same operation as described above is performed. In the lock mode, the control circuit 3 controls the hour hand 8 and the minute hand 9 to 0: 00 is displayed and the hour hand position counter 1
2 and the minute hand position counter 13 are reset (steps 13a, 13b, 13c, 13d, 13e, 13).
f).

In the "lock-time mode" (step 13g), the hour hand 8 displays the atmospheric pressure and the minute hand 9 displays the weather forecast (steps 13h, 13i). The movement of the hour hand 8 and the minute hand 9 in this case is the same as above.

10 seconds after the atmospheric pressure and the weather forecast are displayed by the hour hand 8 and the minute hand 9 (step 13k),
The hour hand 8 and the minute hand 9 are moved again at 0:00 (step 1
3m, 13n, 13p), when the hand movement is completed (steps 13q, 13r), the display returns to the current time display (steps 13s, 13t) as described above.

In the "lock-weather mode", 0: 0
After displaying 0, the current time is displayed with the hour hand 8 and the minute hand 9 for 10 seconds, after which 0:00 is displayed, and then the display returns to the atmospheric pressure and weather forecast (steps 13u, 13v, 13).
w, 13x, 13y, 13z, 13α, 13β, 13
γ, 13δ).

As described above, since the current time, the weather forecast, and the atmospheric pressure are displayed by the hour hand 8 and the minute hand 9, a plurality of displays can be performed in one display space, so that the display space can be reduced and the entire timepiece can be displayed. The size is no longer limited.

Further, since the atmospheric pressure is displayed by the hour hand 8 and the weather forecast is displayed simultaneously by the minute hand 9, the user can recognize two different information at a time.

By operating the monitor switch, information different from the currently displayed information is displayed for a desired time. Therefore, the performance is excellent, and the user can enjoy the hand movements while maintaining the barometric pressure, current time, and weather forecast. Can be confirmed.

Moreover, when the display is switched, the actual display positions of the hour hand 8 and the minute hand 9 are made to coincide with the count values of the hour hand position counter 12 and the minute hand position counter 13 as in the above embodiment, so that the respective counters have the same values. By controlling the counter value, the hour hand 8 and the minute hand 9 can be moved to desired display positions.
Therefore, even when the display is switched, it is possible to prevent erroneous display due to missing pulses or the like.

Further, when the pointer is rotated in the reverse direction, the position of the pointer is adjusted by rotating the pulse by one pulse and then by rotating the pulse by one pulse, so that the display error due to the backlash of the train wheel can be eliminated.

In the above two embodiments, the guideline is 0: 0.
When displaying 0, and when displaying the current time, temperature / humidity or comfort level or weather forecast, and atmospheric pressure from 0:00, forward and reverse rotations were performed depending on the position of the pointer and the target display position. All may be performed in forward rotation, and in this case as well, display errors due to backlash can be eliminated.

[0135]

According to the present invention, when the pointer is fast-forwarded, the needle is rotated in a specific direction to move it to a desired position, so that the display error due to the backlash of the train wheel can be eliminated.

In particular, when the pointer is to display the current time and other information by switching, the degree of reverse rotation of the pointer at the time of switching of the display is larger than that in the case of only displaying the time, and conventionally, Although a display error is likely to occur due to backlash, the present invention enables accurate display.

When the pointer is fast-forwarded and the position where the pointer should be moved is within the desired range with respect to the position of the pointer before the needle is moved, after the step motor is rotated in the direction opposite to the specific one direction. Since the pointer is rotated in one specific direction to move the pointer to a desired position, it is possible to shorten the time for moving the needle and to perform accurate display.

Further, when the position where the pointer should be moved is outside the desired range with respect to the position of the pointer before the needle is moved, the step motor is rotated in one specific direction to move the pointer to the desired position. In the same way as the above, the hand movement time can be shortened and an accurate display can be performed.

[Brief description of drawings]

FIG. 1 is a block circuit diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of FIG.

FIG. 3 is a flowchart for explaining the operation of FIG.

FIG. 4 is a flowchart for explaining the operation of FIG.

5 is a flowchart for explaining the operation of FIG.

FIG. 6 is a flowchart for explaining the operation of FIG.

7 is an explanatory diagram showing one display mode of the display unit of FIG. 1. FIG.

FIG. 8 is an explanatory view showing another display mode of the display unit of FIG.

FIG. 9 is an explanatory diagram showing another display mode of the display unit of FIG. 1.

FIG. 10 is a block circuit diagram showing another embodiment of the present invention.

11 is a flowchart for explaining the operation of FIG.

12 is a flowchart for explaining the operation of FIG.

13 is a flowchart for explaining the operation of FIG.

14 is an explanatory diagram showing one display mode of the display unit of FIG.

15 is an explanatory diagram showing another display mode of the display unit in FIG.

[Explanation of symbols]

 3 Control means 4 Step motor 5 Step motor 6 Wheel train 7 Wheel train 8 Pointer 9 Pointer

Claims (4)

[Claims] 1. A pointer for displaying the current time, a step motor capable of rotating in the forward and reverse directions, a train wheel for transmitting the rotation of the step motor to the pointer, and a step motor for rapidly feeding the pointer. A timepiece having a control means for rotating the hand in one direction to move the pointer to a desired position. 2. The timepiece according to claim 1, wherein the pointer is for selectively switching between the current time and other information for display. 3. A pointer for displaying the current time, a step motor capable of rotating in the forward and reverse directions, a train wheel for transmitting the rotation of the step motor to the pointer, and a needle for moving the pointer when fast-forwarding the pointer. When the position is included in a desired range with respect to the position of the pointer before hand movement, the step motor is rotated in a direction opposite to the specific one direction, and then the pointer is rotated in the specific one direction to rotate the pointer. And a control means for moving the hand to a desired position. 4. A pointer for displaying the present time, a step motor capable of rotating in the forward and reverse directions, a train wheel for transmitting the rotation of the step motor to the pointer, and a needle for moving the pointer when the needle is fast forwarded. When the position is within a desired range with respect to the position of the pointer before hand movement, the step motor is rotated in the opposite direction to the specific one direction, and then the pointer is rotated in the specific one direction to rotate the pointer. To move to the desired position, and if the position to move the pointer is outside the desired range with respect to the position of the pointer before moving the needle, rotate the step motor in one specific direction to move the pointer to the desired position. A timepiece comprising a control means for moving hands up to.