JP6869731B2 - Clock and how to control the clock - Google Patents

Description

The present invention relates to a clock and a method for controlling the clock.

Conventionally, electronic clocks having a plurality of motors have been devised. When these a plurality of motors are operated at the same time, a situation may occur in which the terminal voltage of the battery that supplies power to the motors drops.

Therefore, for example, Patent Document 1 proposes that when a plurality of motors are fast-forwarded, the plurality of motors are alternately driven to perform fast-forwarding while suppressing the influence of the battery load.

Further, Patent Document 2 proposes an analog electronic clock that requests the output of the drive pulse at a preset timing so that the order in which the plurality of stepping motors are driven is the same every predetermined cycle. ing. According to the technique described in Patent Document 2, a plurality of motors can be driven at high speed at the same time while outputting drive pulses without duplication.

Japanese Unexamined Patent Publication No. 60-162980 Japanese Unexamined Patent Publication No. 2013-134189

However, in a stepping motor used in a general electronic watch, when optimized for operating in the forward rotation direction, the drive pulse for reverse rotation operation is longer than the drive pulse for forward rotation operation. It can be. Further, depending on the characteristics of the stepping motor, the length of the drive pulse for driving in the forward rotation may differ depending on the motor. When the drive pulse of the motor becomes long in this way, there arises a problem that the number of motors that can be continuously driven must be reduced or the drive frequency must be slowed down. By the way, depending on the load characteristics of the battery and the current consumed by each motor, it is difficult to drive all the motors mounted on the electronic watch at the same time, but some motors can be driven at the same time. There is also.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a clock capable of driving a plurality of motors as many as the number of motors that can be driven simultaneously, and a method for controlling the clock.

In order to achieve the above object, the clock (100) according to one aspect of the present invention includes an operating body including at least a pointer (for example, second hand 120A, minute hand 120B, hour hand 120C, day wheel 120E, small clock pointer 120D). A storage unit (105) that stores a plurality of motors (122) to be operated, the number of simultaneous drive motors that can be driven simultaneously among the plurality of motors, and the drive priority when the plurality of motors are simultaneously driven. , The number of motors being driven among the plurality of motors is monitored, and after the driving of the first motor among the plurality of motors is stopped, the number of motors being driven by the monitoring is calculated from the number of simultaneous driving motors. When the number is small, the control unit (control unit 101) for driving the second motor having a lower drive priority than the first motor is provided.

Further, in the timepiece according to one aspect of the present invention, the drive priority stored by the storage unit is at least when the number of steps required for one rotation of the operating body is small and the time required for one rotation of the operating body. If it is short, at least one of them may be set higher.

Further, the clock according to one aspect of the present invention is composed of a main display unit including at least one of an hour hand, a minute hand, and a second hand as the operating body, and the operating body different from the main display unit. The drive priority, which includes a sub-display unit and is stored in the storage unit, is such that the drive priority of the operating body in the main display unit is higher than the drive priority of the operating body in the sub-display unit. It may be set high.

Further, in the timepiece according to one aspect of the present invention, the control unit calculates the required operating time required to operate the operating body to a desired drive target position, and the smaller the required operating time, the more the driving priority is given. The ranking may be set high.

Further, in the timepiece according to one aspect of the present invention, the control unit calculates the required number of steps required to operate the operating body to a desired target position, and the smaller the required number of steps, the higher the driving priority. May be set high.

Further, the clock according to one aspect of the present invention may include a power supply, and the control unit may measure the power supply voltage of the power supply and change the number of drive motors according to the power supply voltage.

Further, in the clock according to one aspect of the present invention, the storage unit stores the current consumption value of each of the plurality of motors or the resistance value corresponding to the current consumption value, and the current consumption value and the simultaneous drive motor. The control unit stores the correspondence with the number, calculates the total value of the current consumption values of the motors required to operate the operating body, and responds to the total value based on the correspondence. The number of simultaneous drive motors may be read out, and the plurality of motors may be driven based on the read-out number of simultaneous drive motors.

To achieve the above object, a control method of the watch according to one embodiment of the present invention, among the desired multiple motors that Ru is operated to drive target position operation comprising at least guidelines, which can simultaneously driven simultaneously A number matching the number of simultaneous drive motors, including a first motor selected based on the drive priority by setting the number of drive motors and setting the drive priority at the time of simultaneous drive of the plurality of motors. of driving the motor, wherein when said operating member is operated by the first motor has reached the desired target position, the drive of the pre-Symbol first motor is stopped, the number is the simultaneous motor during driving It determines whether less than the driving motor speed, when the number of motors in the drive is determined to be smaller than the simultaneous drive motor speed, drive the first of the second motor is low the driving priority than motor Ru is.

According to the present invention, a plurality of motors can be driven by the number of motors that can be driven simultaneously.

It is a block diagram which shows the structural example of the clock system which concerns on 1st Embodiment. It is a figure which shows an example of the number of steps required to rotate each of the pointers which concerns on 1st Embodiment, the range of a needle position counter value, and the drive priority. It is a figure which shows the arrangement example of the second hand, the minute hand, the hour hand, the small clock pointer, and the day wheel of the clock which concerns on 1st Embodiment. It is a figure which shows the value of the needle position counter at each position of the pointer shown in FIG. It is a figure which shows the example of the initial position in each of the pointers. It is a figure which shows the value of the needle position counter at each position of the pointer shown in FIG. It is a figure which shows the example of the case where the pointer is driven from the position of FIG. 3 to the position of FIG. It is a figure which shows the example of the case where the pointer is driven from the position of FIG. 5 to the position of FIG. It is a flowchart of the pointer driving process which concerns on 1st Embodiment. It is a figure which shows the example of the output timing of the drive pulse which concerns on 1st Embodiment. It is a figure which shows another example of the output timing of the drive pulse which concerns on 1st Embodiment. It is a figure which shows the example of the range of the voltage value of the power source stored in the storage part which concerns on 2nd Embodiment and the number of motors which can be driven simultaneously. It is a flowchart of the process which sets the number of motors which can be driven at the same time based on the voltage of the secondary battery which concerns on 2nd Embodiment. It is a flowchart of the drive priority determination process according to the drive time which concerns on 3rd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a block diagram showing a configuration example of the clock system 1 according to the present embodiment.
As shown in FIG. 1, the clock system 1 includes a communication device 200 and a clock 100 capable of communicating with the communication device 200.

The clock 100 includes a control unit 101, an oscillation circuit 102, a frequency dividing circuit 103, an input unit 104, a storage unit 105, a solar battery 106, a charge / discharge control circuit 107, a secondary battery 109, a switch 110, a wireless communication control unit 111, and a battery. Voltage detection unit 112, second hand 120A, minute hand 120B, hour hand 120C, small clock pointer 120D, day wheel 120E, train wheel mechanism 121A, train wheel mechanism 121B, wheel train mechanism 121C, wheel train mechanism 121D, wheel train mechanism 121E, stepping motor It includes a 122A, a stepping motor 122B, a stepping motor 122C, a stepping motor 122D, and a stepping motor 122E.
The watch 100 includes a case, a windshield, a dial (Dial) (FIG. 3), a scale ring (FIG. 3), a band, and the like. The dial, scale ring, etc. will be described later.

The clock 100 of the present embodiment is a world clock (World time keeping instrument, World time Watch, World time time) that can display the time of a plurality of regions or countries, a so-called world time watch.

If one of the second hand 120A (acting body), the minute hand 120B (acting body), the hour hand 120C (acting body), the small clock pointer 120D (acting body), and the date wheel 120E (acting body) is not specified, It is called a pointer 120 (actuator 120). When one of the train wheel mechanism 121A, the train wheel mechanism 121B, the train wheel mechanism 121C, the train wheel mechanism 121D, and the train wheel mechanism 121E is not specified, it is referred to as the train wheel mechanism 121. When one of the stepping motor 122A, the stepping motor 122B, the stepping motor 122C, the stepping motor 122D, and the stepping motor 122E is not specified, it is referred to as a motor 122.

Further, the control unit 101 includes a power supply control unit 1011, a time counting unit 1012, a communication control unit 1013, an information processing unit 1014, an information transmission / reception unit 1015, and a pointer control unit 1016.
Further, the wireless communication control unit 111 includes an antenna 1111 and a short-range wireless communication unit 1112.

The clock 100 receives at least information from the communication device 200 via wireless communication, and drives the second hand 120A based on the received information. The clock 100 measures the time and displays the time measured using the pointer 120.

The solar cell 106 is, for example, a solar panel. The solar cell 106 converts light energy into electric power and outputs the converted electric power to the charge / discharge control circuit 107.
The charge / discharge control circuit 107 charges the secondary battery 109 with the electric power output from the solar cell 106. The charge / discharge control circuit 107 performs discharge control so as to discharge or stop charging when the voltage value of the secondary battery 109 becomes equal to or higher than a predetermined voltage value. The charge / discharge control circuit 107 supplies the electric power stored in the secondary battery 109 to the control unit 101. The charge / discharge control circuit 107 supplies the electric power stored in the secondary battery 109 to the wireless communication control unit 111 when the switch 110 is on, according to the control unit 101.

The secondary battery 109 is a storage battery that stores the electric energy generated by the solar cell 106. The secondary battery 109 supplies the stored electric power to the control unit 101 and the wireless communication control unit 111.

One end of the switch 110 is connected to the secondary battery 109, and the other end is connected to the wireless communication control unit 111. The switch 110 is controlled by the power supply control unit 1011.
The battery voltage detection unit 112 detects the voltage value of the secondary battery 109 and outputs information indicating the detected voltage value to the control unit 101.

Power is supplied to the wireless communication control unit 111 from the secondary battery 109 according to the control of the power supply control unit 1011. The wireless communication control unit 111 converts the data output by the communication control unit 1013 into a transmission signal of a communication method performed with the communication device 200, and converts the converted transmission signal into radio waves. The wireless communication control unit 111 transmits the converted radio wave to the communication device 200. The wireless communication control unit 111 receives the radio waves transmitted by the communication device 200 in response to the control of the communication control unit 1013. The wireless communication control unit 111 converts the received radio wave into an electric signal according to the control of the communication control unit 1013, and outputs the converted electric signal as a reception signal to the communication control unit 1013. In the embodiment, it is referred to as a communication radio wave including a transmission signal and a reception signal.

The short-range wireless communication unit 1112 converts the data output by the communication control unit 1013 into a transmission signal of a communication method performed with the communication device 200, and outputs the converted transmission signal to the antenna 1111. The communication method in which the watch 100 and the communication device 200 communicate with each other is a Wi-Fi (Wi-Filess Fidelity) standard, a Bluetooth (registered trademark) LE (Low Energy) (hereinafter referred to as BLE) standard, or the like. .. In the following description, an example in which the communication method is BLE will be described. The wireless communication control unit 111 outputs the electric signal output by the antenna 1111 to the communication control unit 1013 as a reception signal.

The antenna 1111 converts the transmission signal output by the short-range wireless communication unit 1112 into radio waves, and transmits the converted radio waves. The antenna 1111 converts the received radio wave into an electric signal, and outputs the converted electric signal as a received signal to the short-range wireless communication unit 1112.

The oscillation circuit 102 includes, for example, a crystal oscillator. A crystal oscillator is a passive element used to oscillate a first frequency from its mechanical resonance by utilizing the piezoelectric phenomenon of quartz. The oscillation frequency of the crystal oscillator is, for example, 32 kHz. The oscillation circuit 102 outputs the clock signal generated by oscillating the crystal oscillator to the frequency dividing circuit 103.
The frequency dividing circuit 103 divides the signal of the clock signal output by the oscillation circuit 102 to a desired frequency, and outputs the divided reference signal to the control unit 101. The frequencies of the reference signals are, for example, 64 Hz and 32 Hz.

The input unit 104 is, for example, a crown or a push button. The input unit 104 detects the user's operation and outputs the detected operation result to the control unit 101. The detection result of the crown is the rotation angle of the crown and the like. The detection result of the push button is the on state or the off state. As will be described later, in the watch 100 of the present embodiment, the operation mode is switched by operating the crown. Here, the operation mode includes a time adjustment mode, a normal operation mode, a communication mode for communication, and the like.

The storage unit 105 stores information and programs necessary for controlling the clock 100. The storage unit 105 stores the number of drive pulses at the time of forward rotation, the number of drive pulses at the time of reverse rotation, and the drive time at the time of reverse rotation for each pointer 120 in association with each other. The storage unit 105 stores the value of the needle position counter corresponding to the current needle position. The storage unit 105 stores the priority (hereinafter referred to as drive priority) when driving the pointer 120. The storage unit 105 stores information indicating the number of motors 122 that can be driven simultaneously. The storage unit 105 stores the main clock setting and the small clock setting, which will be described later. The main clock and the small clock will be described later.

The control unit 101 is, for example, a CPU (Central Processing Unit), and controls each unit included in the clock 100. The control unit 101 drives each unit using the electric power output from the secondary battery 109. The control unit 101 clocks the time and moves the pointer 120 by controlling the motor 122 based on the timed result. The control unit 101 generates a drive pulse for driving the pointer 120 according to the information received by the wireless communication control unit 111. The control unit 101 generates a drive pulse that adjusts the pointer 120 according to the detection result output by the input unit 104. The control unit 101 outputs the generated drive pulse to the motor 122. The control unit 101 controls the switch 110 to be in the on state when the voltage value detected by the battery voltage detection unit 112 is higher than the predetermined value, and controls the switch 110 to be in the off state when the voltage value is not more than the predetermined value.

The power supply control unit 1011 controls the power on / off state of the wireless communication control unit 111. Specifically, the power supply control unit 1011 switches the switch 110 to the ON state only when the wireless communication control unit 111 communicates with the communication device 200 so that the secondary battery 109 supplies power to the wireless communication control unit 111. To control. Further, the power supply control unit 1011 switches the switch 110 to the off state when the wireless communication control unit 111 does not communicate with the communication device 200, and controls so that the secondary battery 109 does not supply power to the wireless communication control unit 111. Further, the power supply control unit 1011 controls each unit according to the voltage value of the secondary battery 109 detected by the battery voltage detection unit 112. For example, when the voltage value is lower than the threshold value, the power supply control unit 1011 controls to change the interval of hand movement to the pointer control unit 1016.

The time counting unit 1012 includes an internal counter, measures the current time (hour, minute, second) based on the reference signal input from the frequency dividing circuit 103, and holds the pointer position information indicating the time measured in the internal counter.

The information processing unit 1014 stores the detection result output by the input unit 104 in the storage unit 105. The detection results include, for example, the time difference from Coordinated Universal Time in the first time zone, the time difference from Coordinated Universal Time in the second time zone, the time difference from Coordinated Universal Time in the third time zone, and the coordinated universal time. Includes time difference from world time. The information processing unit 1014 generates data to be transmitted to the communication device 200, and outputs the generated data to the information transmission / reception unit 1015. The information processing unit 1014 stores the received received information output by the information transmission / reception unit 1015 in the storage unit 105. The received information includes, for example, the time difference from Coordinated Universal Time in the first time zone, the time difference from Coordinated Universal Time in the second time zone, the time difference from Coordinated Universal Time in the third time zone, and the coordinated universal time. Includes time difference from world time.

The communication control unit 1013 controls the wireless communication control unit 111 to receive the received information transmitted by the communication device 200. The communication control unit 1013 controls the wireless communication control unit 111 to transmit transmission information to the communication device 200.

The information transmission / reception unit 1015 outputs the data output by the information processing unit 1014 to the short-range wireless communication unit 1112. The information transmission / reception unit 1015 outputs the received data output by the short-range wireless communication unit 1112 to the information processing unit 1014.

The pointer control unit 1016 generates a hand movement request according to the count value of the time counting unit 1012. The pointer control unit 1016 executes the generated hand movement request, generates a drive pulse, and outputs the drive pulse to the motor 122. The drive pulse is a drive signal that reverses the pointer 120 by one step, or a drive signal that reverses the pointer 120 by one step. The pointer control unit 1016 counts the value of the drive step corresponding to each needle position of the pointer 120 based on the generated drive pulse, and stores the counted value of the drive step in the storage unit 105.

Each of the stepping motor 122A, the stepping motor 122B, the stepping motor 122C, the stepping motor 122D, and the stepping motor 122E is a stepping motor.
The stepping motor 122A drives the second hand 120A via the train wheel mechanism 121A by the drive pulse output by the pointer control unit 1016. The stepping motor 122B drives the minute hand 120B via the train wheel mechanism 121B by the drive pulse output by the pointer control unit 1016. The stepping motor 122C drives the hour hand 120C via the train wheel mechanism 121C by the drive pulse output by the pointer control unit 1016. The stepping motor 122D drives the small clock pointer 120D via the train wheel mechanism 121D by the drive pulse output by the pointer control unit 1016. The stepping motor 122E drives the date wheel E via the train wheel mechanism 121E by the drive pulse output by the pointer control unit 1016.

Each of the train wheel mechanism 121A, the train wheel mechanism 121B, the train wheel mechanism 121C, the train wheel mechanism 121D, and the train wheel mechanism 121E includes at least one gear.

The second hand 120A is a second hand. The minute hand 120B is a minute hand. The hour hand 120C is an hour hand. The pointer group of the second hand 120A, the minute hand 120B, the hour hand 120C, and the date wheel 120E displays the time of the first country or region. The small clock pointer 120D includes a minute hand 120D1, an hour hand 120D2, and a 24-hour hand 120D3 as described later. The pointers of the minute hand 120D1, the hour hand 120D2, and the 24-hour hand 120D3 display the time in a second country or range. The time of the first country or region and the time of the second country or range may be the same time.

<Explanation of communication equipment>
Next, the communication device 200 will be described.
As shown in FIG. 1, the communication device 200 includes a control unit 201, an input unit 202, a display unit 203, a storage unit 204, an antenna 205, and a short-range wireless communication unit 206.

The communication device 200 is a device having a communication function, for example, a smartphone, a tablet terminal, a portable game device, a computer, or the like. The communication device 200 may include, for example, GPS (Global Positioning System).

The input unit 202 detects the operation input from the user and outputs the detected operation result to the control unit 201. The input unit 202 is, for example, a touch panel sensor provided on the display unit 203.

When the application for setting the main clock and the small clock of the clock 100 is started, the control unit 201 sets the time difference from the coordinated universal time (UTC) of the time in the city where the communication device 200 is used via the network. Is acquired, and the time difference between the acquired city time and Coordinated Universal Time is associated and stored in the storage unit 204. The control unit 201 transmits information representing the current time (first time) of the city in which the communication device 200 is used and information representing the time of the city selected by the user via the short-range wireless communication unit 206. And sends it to the clock 100. The information representing the time of the city selected by the transmitting user may be the time difference from the first time, the time difference from Coordinated Universal Time, or the like. Coordinated Universal Time may be a reference time including Greenwich Mean Time (GMT).

The storage unit 204 stores information, a program, an application for generating an instruction to the clock 100, and the like necessary for controlling the communication device 200. The storage unit 204 stores the time difference of each of the plurality of cities in association with the coordinated universal time.

The display unit 203 is a device that displays information. The display unit 203 is configured by, for example, a liquid crystal display (LCD) and an organic EL (Electroluminescence) device. On the display unit 203, for example, an image of an application or the like is displayed according to the control of the control unit 201.

The short-range wireless communication unit 206 transmits information to at least the watch 100 via the antenna 205. The short-range wireless communication unit 206 generates a transmission signal based on the transmission information output by the control unit 201, and transmits the generated transmission signal to the clock 100 via the antenna 205. The short-range wireless communication unit 206 receives the transmission signal transmitted by the clock 100 via the antenna 205, extracts information from the received signal, and outputs the extracted information to the control unit 201 as reception information. It may be.

The antenna 205 converts the transmission signal output by the short-range wireless communication unit 206 into radio waves, and transmits the converted radio waves to the clock 100.

<Number of steps required to rotate each pointer 120 once, range of needle position counter value, drive priority>
Next, an example of the number of steps required to rotate each of the pointers 120 once, the range of the needle position counter value, and the drive priority will be described.
FIG. 2 is a diagram showing an example of the number of steps required to rotate each of the pointers 120 according to the present embodiment, the range of the needle position counter value, and the drive priority.
As shown in FIG. 2, the number of steps required to rotate the second hand 120A around is 60 steps. The number of steps required to rotate the minute hand 120B once is 480 steps. The number of steps required to rotate the hour hand 120C once is 480 steps. The number of steps required to rotate the date wheel 120E around is 3720 steps. The number of steps required to rotate all of the small clock pointer 120D around is 1440 steps.

The value range of the hand position counter of the second hand 120A is 0 to 59. The value range of the hand position counter of the minute hand 120B is 0 to 479. The value range of the hand position counter of the hour hand 120C is 0 to 479. The value range of the hand position counter of the date wheel 120E is 0 to 3719. The value range of the hand position counter of the small clock pointer 120D is 0 to 1439.

Further, in the example shown in FIG. 2, the number of drive steps (number of drive pulses) required for one-turn rotation drive is small, or the motor 122 that takes a short time for one-turn rotation drive is set to have a higher priority. is there. For example, as shown in the example shown in FIG. 2, the second hand 120A has 60 steps, the minute hand 120B has 480 steps, the hour hand 120C has 480 steps, and the date wheel 120E determines the number of steps required to drive each of the pointers 120 in one revolution. Assuming that 3720 steps and the small clock pointer 120D have 1440 steps, the first place is the second hand, the second place is the minute hand, the hour hand, the fourth place is the pointer of the small clock, and the fifth place is the day wheel.

<Example of placement on the dial>
Next, an arrangement example of the second hand 120A, the minute hand 120B, the hour hand 120C, the small clock pointer 120D, and the date wheel 120E of the clock 100 will be described.
FIG. 3 is a diagram showing an arrangement example of the second hand 120A, the minute hand 120B, the hour hand 120C, the small clock pointer 120D, and the date wheel 120E of the clock 100 according to the present embodiment.

As shown in FIG. 3, the watch 100 includes a crown 104a and push buttons 104b to 104d as an input unit 104. The crown 104a is used, for example, for time adjustment, time zone switching, and the like. The push buttons 104b to 104d are used for switching the operation mode, various inputs in each operation mode, and the like.

Further, as display means, the clock 100 has a first dial 72a, a first scale ring 74, a second scale ring 75, a second dial 72b1, a third dial 72b2, a second hand 120A, and a minute hand 120B. , The hour hand 120C, the minute hand 120D1, the hour hand 120D2, the 24-hour hand 120D3, and the date wheel 120E.

An index bar 73 is provided on the first dial 72a. Further, a first scale ring 74 is provided on the outer circumference of the first dial 72a. The first scale ring 74 is fixed and engraved with information (-12, -11, ..., 0, 1, ..., 14) indicating the time difference from Coordinated Universal Time. A second scale ring 75 is provided on the outer periphery of the first scale ring 74. The second scale ring 75 is fixed and engraved with information representing cities, regions, and countries (MDY, HNL, ..., LON, PAR, ..., CXI). For example, LON represents the city name of London. The abbreviated display of the city name shown in FIG. 3 is an example, and is not limited to this.

The main clock is composed of a first dial 72a, a second hand 120A, a minute hand 120B, an hour hand 120C, and a date wheel 120E. The main clock, for example, clocks and displays the time of the city or country in which the user is staying. In the embodiment, the first dial 72a, the second hand 120A, the minute hand 120B, and the hour hand 120C are referred to as a main display unit.

The small clock is composed of a second dial 72b1, a minute hand 120D1, and an hour hand 120D2. The small clock, for example, clocks and displays the time of the city or country in which the user mainly lives.
The third dial 72b2 and the 24-hour hand 120D3 display the time on the small clock for 24 hours. Further, in the embodiment, at least one combination of the first dial 72a and the date wheel 120E or the combination of the second dial 72b1 and the small clock pointer 120D is referred to as a sub-display unit.

<Drive of pointer>
Here, an example of the position of each of the pointers 120, the number of steps for driving, and the value of the needle position counter will be described.
FIG. 4 is a diagram showing the value of the needle position counter at each position of the pointer 120 shown in FIG. In the example shown in FIG. 4, the main clock points to 8:19:50 on the 28th, and the small clock points to 10:19 am.
As shown in FIG. 4, the value of the hand position counter of the second hand 120A is 50. The value of the hand position counter of the minute hand 120B is 158. The value of the hand position counter of the hour hand 120C is 333. The value of the hand position counter of the date wheel 120E is 3240. The value of the hand position counter of the small clock pointer 120D is 619.

Next, a case where each of the pointers 120 is driven to the position shown in FIG. 5 will be described.
FIG. 5 is a diagram showing an example of the initial position of each of the pointers 120. The display at the initial position is a position in which the main clock points to 0:00:00 on the 1st and the small clock points to 0:00 am.

FIG. 6 is a diagram showing the value of the needle position counter at each position of the pointer 120 shown in FIG.
As shown in FIG. 6, the values of the hand position counters of the second hand 120A, the minute hand 120B, the hour hand 120C, the date wheel 120E, and the small clock pointer 120D are 0.

Next, an example of driving the pointer 120 from the position of FIG. 3 to the position of FIG. 5 will be described.
FIG. 7 is a diagram showing an example of driving the pointer 120 from the position of FIG. 3 to the position of FIG.
As shown in FIG. 7, the second hand 120A has 10 drive steps in the forward rotation direction, a drive frequency at the time of forward rotation of 64 Hz, a drive time of 0.16 seconds, and a drive time of 0.16 seconds. Based on the priority is first. The priority based on the drive time will be described later.

The minute hand 120B has 158 drive steps in the reverse direction, a drive frequency at the time of reverse rotation of 32 Hz, a drive time of 4.93 seconds, and a third priority based on the drive time.
The hour hand 120C has 147 drive steps in the forward rotation direction, a drive frequency at the time of forward rotation of 64 Hz, a drive time of 2.29 seconds, and a second priority based on the drive time. is there.

The number of drive steps of the date wheel 120E is 480 steps in the forward rotation direction, the drive frequency at the time of normal rotation is 64 Hz, the drive time is 7.50 seconds, and the priority based on the drive time is fourth. Is.
The small clock pointer 120D has 619 drive steps in the reverse direction, a drive frequency of 32 Hz at the time of reverse rotation, a drive time of 19.34 seconds, and a fifth priority based on the drive time. is there.

Next, an example of driving the pointer 120 from the position of FIG. 5 to the position of FIG. 3 will be described.
FIG. 8 is a diagram showing an example of driving the pointer 120 from the position of FIG. 5 to the position of FIG.
As shown in FIG. 8, the second hand 120A has 10 drive steps in the reverse direction, a drive frequency of 32 Hz, a drive time of 0.31 seconds, and a priority based on the drive time of 1. It is a place. The priority based on the drive time will be described later.

The minute hand 120B has 158 drive steps in the forward rotation direction, a drive frequency at the time of forward rotation of 64 Hz, a drive time of 2.47 seconds, and a second priority based on the drive time. is there.
The hour hand 120C has 147 drive steps in the reverse direction, a drive frequency at the time of reverse rotation of 32 Hz, a drive time of 4.60 seconds, and a third priority based on the drive time.

The number of drive steps of the date wheel 120E is 480 steps in the reverse direction, the drive frequency at the time of reverse rotation is 32 Hz, the drive time is 15.00 seconds, and the priority based on the drive time is 5th. ..
The small clock pointer 120D has 619 drive steps in the forward rotation direction, a drive frequency at the time of forward rotation of 64 Hz, a drive time of 9.67 seconds, and a priority of 4 based on the drive time. It is a place.

The pointer control unit 1016 determines which of the forward rotation and the reverse rotation is shorter when driving to the initial position based on the value of the needle position counter of the pointer 120.
For example, when the second hand 120A is driven from the position of FIG. 3 to the position of FIG. 5, it takes 10 steps (= 0.156 seconds) for forward rotation and 50 steps (= 1.56 seconds) for reverse rotation. The pointer control unit 1016 compares 10 steps and 50 steps, and selects to drive in a normal rotation of 10 steps.

<Pointer drive processing>
Next, an example of the pointer drive processing procedure will be described.
FIG. 9 is a flowchart of the pointer driving process according to the present embodiment.

(Step S1) The pointer control unit 1016 reads out the number of motors that can be driven simultaneously (also referred to as the number of motors that can be driven simultaneously) stored in the storage unit 105, and sets the number of motors that can be driven simultaneously.
(Step S2) The pointer control unit 1016 reads out the drive priority stored in the storage unit 105 and sets the drive priority.

(Step S3) The information processing unit 1014 controls the communication control unit 1013, receives the information transmitted by the communication device 200 via the wireless communication control unit 111, and outputs the received information to the pointer control unit 1016. .. Subsequently, the pointer control unit 1016 obtains the drive target position of each of the pointers 120 based on the received information. Subsequently, the pointer control unit 1016 reads the value of the needle position counter corresponding to each position of the current pointer 120 from the storage unit 105. Subsequently, the pointer control unit 1016 obtains the current position of each of the pointers 120 based on the read-out value of the needle position counter. Subsequently, the pointer control unit 1016 calculates the number of drive pulses in the forward rotation and the number of drive pulses in the reverse rotation for each of the pointers 120 from the difference between the current position and the drive target position.

(Step S4) The pointer control unit 1016 uses the number of drive pulses in the normal rotation calculated in step S3 to calculate the time required for driving in the normal rotation from the current position to the target position for each of the pointers 120. In this embodiment, the forward rotation drive frequency is 64 Hz, and the reverse rotation drive frequency is 32 Hz. Therefore, for example, the driving time of the second hand 120A in 10 steps is 0.16 seconds in the forward rotation and 0.31 seconds in the reverse rotation. Subsequently, the pointer control unit 1016 calculates the drive time in the case of reverse rotation for each of the pointers 120 with reference to the calculated correspondence table between the number of drive pulses at the time of normal rotation and the forward rotation and reverse rotation stored in the storage unit 105. To do. Subsequently, the pointer control unit 1016 compares the drive times during forward rotation and reverse rotation from the current position to the target position, and determines which of the drive times during normal rotation and reverse rotation is shorter. judge. Subsequently, the pointer control unit 1016 determines the number of drive pulses calculated in step S3 as the number of drive pulses for the pointer 120 determined to have a shorter drive time in the normal rotation. Subsequently, the pointer control unit 1016 corrects the number of drive pulses calculated in step S3 to the number of drive pulses at the time of reverse rotation for the pointer 120 determined that the drive time is shorter in the reverse direction, and corrects the drive at the time of reverse rotation. The number of pulses is determined as the number of drive pulses.

(Step S5) The pointer control unit 1016 is a number of motors 122 that need to be driven and can be simultaneously driven by the motors 122 having a higher priority based on the drive priority set in step S2. Just select.

(Step S6) The pointer control unit 1016 generates a drive pulse for driving the motor 122 selected in step S5 in one step in the drive direction selected in step S4, and supplies the generated drive pulse to the selected motor 122. Drive by that.

(Step S7) The pointer control unit 1016 updates the count value and updates the needle position according to the number and direction (forward rotation, reverse rotation) of the drive pulses supplied to the motor 122.

(Step S8) The pointer control unit 1016 determines whether or not there is a motor 122 that has been driven in the reverse direction among the motors 122 selected in step S5. When the pointer control unit 1016 determines that there is a motor 122 whose drive in the reverse direction has been completed (step S8; YES), the pointer control unit 1016 proceeds to the process of step S9. When the pointer control unit 1016 determines that there is no motor 122 whose drive in the reverse direction has been completed (step S8; NO), the pointer control unit 1016 proceeds to the process of step S10.

(Step S9) The pointer control unit 1016 is set to perform backlash correction drive. The backlash correction is a correction at the time of reverse rotation drive for the play amount between the gears of the train wheel. As the backlash correction, the pointer control unit 1016 is set to perform the backlash correction drive so as to perform the forward rotation 1 step drive for the reverse rotation 1 step, for example.

(Step S10) The pointer control unit 1016 determines whether or not there is a motor 122 whose drive has been completed among the selected motors 122. When the pointer control unit 1016 determines that there is a motor 122 whose drive has been completed (step S10; YES), the pointer control unit 1016 proceeds to the process of step S11. When the pointer control unit 1016 determines that there is no motor 122 whose drive has been completed (step S10; NO), the pointer control unit 1016 returns to the process of step S6.

(Step S11) The pointer control unit 1016 acquires the number of motors being driven.
(Step S12) The pointer control unit 1016 determines whether or not all the motors 122 to be driven have been driven. When the pointer control unit 1016 determines that the driving of all the motors 122 to be driven has not been completed (step S12; NO), the pointer control unit 1016 proceeds to the process of step S13. When the pointer control unit 1016 determines that all the motors 122 to be driven have been driven (step S12; YES), the pointer control unit 1016 ends the pointer drive process.

(Step S13) The pointer control unit 1016 sets the drive motors based on the number of currently driven motors acquired in step S11, the number of simultaneously driveable motors set in step S1, and the priority order set in step S2. Reset. For example, when the number of motors that can be driven simultaneously is 3, the driving of one motor 122 is completed, and the two motors 122 are currently being driven, the pointer control unit 1016 may drive the motor 122 having the fourth driving priority. Is added to the driving motor. After resetting, the pointer control unit 1016 returns to the process of step S6.

Here, a specific example of the pointer drive process shown in FIG. 9 will be described with reference to FIGS. 3 to 7 and 10. In the following example, the number of motors that can be driven simultaneously is three. Further, this is an example in which the drive priority is in the order of the second hand 120A, the minute hand 120B, the hour hand 120C, the date wheel 120E, and the small clock pointer 120D.

FIG. 10 is a diagram showing an example of the output timing of the drive pulse according to the present embodiment. In FIG. 10, the horizontal axis represents time. The waveform g1 is a drive pulse output by the pointer control unit 1016 to the stepping motor 122A. The waveform g2 is a drive pulse output by the pointer control unit 1016 to the stepping motor 122B. The waveform g3 is a drive pulse output by the pointer control unit 1016 to the stepping motor 122C. The waveform g4 is a drive pulse output by the pointer control unit 1016 to the stepping motor 122D. The waveform g5 is a drive pulse output by the pointer control unit 1016 to the stepping motor 122E.

It is assumed that the positions of the current pointers 120 are in the state shown in FIG. 3 and the target driving position is in the state shown in FIG. In this case, each value of the needle position counter corresponding to the current position is the value shown in FIG. 4, and each value of the needle position counter corresponding to the target drive position is the value shown in FIG. In this case, the number of forward drive steps from the current position to the target drive position is 10 (= 60-50) steps for the second hand 120A, 322 (= 480-158) steps for the minute hand 120B, and the hour hand 120C. The 147 (= 480-333) step, the date wheel 120E is the 480 (= 3720-3240) step, and the small clock pointer 120D is the 821 (= 1440-619) step.

The pointer control unit 1016 calculates the drive time based on the value of the drive step at the time of normal rotation. Further, the pointer control unit 1016 obtains the drive time at the time of reverse rotation corresponding to the number of drive pulses at the time of forward rotation with reference to the storage unit 105. As a result, the pointer control unit 1016 determines the driving direction of each of the pointers 120 as shown in FIG.

Further, it is assumed that the priority order stored in the storage unit 105 is that the second hand 120A is the first place, the minute hand 120B is the second place, the hour hand 120C is the second place, the small clock pointer 120D is the fourth place, and the date wheel 120E is the fifth place. .. Further, it is assumed that the number of motors that can be driven at the same time is three.
Therefore, the pointer control unit 1016 starts driving the second hand 120A, the minute hand 120B, and the hour hand 120C one step at a time. The pointer control unit 1016 simultaneously drives the second hand 120A, the minute hand 120B, and the hour hand 120C.

At time t1, the pointer control unit 1016 starts driving the second hand 120A, the minute hand 120B, and the hour hand 120C one step at a time, as shown in the waveform g1, the waveform g2, and the waveform g3 of FIG.

At time t2, the pointer control unit 1016 ends driving the second hand 120A.
At time t3, the pointer control unit 1016 starts driving the small clock pointer 120D having the fourth priority. As a result, the pointer control unit 1016 simultaneously drives the minute hand 120B, the hour hand 120C, and the small clock pointer 120D, as shown in the waveform g2, the waveform g3, and the waveform g4.

At time t4, the pointer control unit 1016 ends driving the hour hand 120C.
At time t5, the pointer control unit 1016 starts driving the day wheel 120E having the fifth priority. As a result, the pointer control unit 1016 simultaneously drives the minute hand 120B, the small clock pointer 120D, and the date wheel 120E, as shown in the waveform g2, the waveform g4, and the waveform g5.

At time t6, the pointer control unit 1016 ends driving the minute hand 120B.
At time t7, the pointer control unit 1016 ends driving the small clock pointer 120D.
At time t8, the pointer control unit 1016 ends driving the date wheel 120E.

In this way, the pointer control unit 1016 of the present embodiment monitors the number of motors being driven among the plurality of motors 122, and stops driving the first motor having the highest drive priority among the plurality of motors at that time. After that, if the number of motors being driven is less than the number of motors that can be driven simultaneously by the monitoring, the second motor having a lower drive priority than the first motor having the highest drive priority, that is, the drive priority is the same. At that point, drive the second motor.

As described above, according to the present embodiment, by setting the number of motors that can be driven simultaneously by the pointer control unit 1016 and the drive priority, M (M is an integer of 2 or more) can be set according to the priority. Of the motors 122, N (N is an integer less than M) of the motors 122 can be driven at the same time. Then, according to the present embodiment, since the pointer control unit 1016 monitors the number of motors that are being driven at the same time (steps S10 and S11), if there is a motor 122 that has been driven out of the N motors 122, the driving is completed. , The motor 122 of the next priority can be selected from the remaining motors 122 among the M motors 122 and driven at the same time.

Here, a modified example of the pointer drive shown in FIG. 10 will be described.
In the example shown in FIG. 10, the timing of driving from the current position to the target drive position has been described, but after reaching the target drive position, the pointer 120 that has finished driving is used even while the remaining pointer 120 is being driven. An example of starting timekeeping will be described.

FIG. 11 is a diagram showing another example of the output timing of the drive pulse according to the present embodiment. In FIG. 11, the horizontal axis represents time. Waveforms g1 to g5 are the same as in FIG. The waveform g11 is a driving pulse for clocking the second hand 120A. The waveform g12 is a timed drive pulse of the minute hand 120B.

The operation at times t1 to t6 is the same as in FIG.
At time t11, the pointer control unit 1016 drives the second hand 120A by one step. At time t11, the motors 122 that are simultaneously driven are the stepping motor 122D and the stepping motor 122E. Therefore, the pointer control unit 1016 also drives the stepping motor 122C corresponding to the second hand 120A as a third that can be driven simultaneously.

At time t12, the pointer control unit 1016 drives the minute hand 120B by one step. At time t12, three motors 122 are driven at the same time, and the pointer control unit 1016 drives the stepping motor 122D, the stepping motor 122E, and the stepping motor 122B.

As shown in FIG. 11, according to the present embodiment, even before all the pointers 120 have been driven to the target drive position received from the communication device 200, within the range of the motor 122 that can be simultaneously driven. , The timekeeping can be started using the pointer 120 that has been driven.

[Second Embodiment]
In the first embodiment, an example in which information indicating the number of motors 122 that can be simultaneously driven by the storage unit 105 is stored in advance has been described, but the present invention is not limited to this. The number of motors 122 that can be driven at the same time may be the number corresponding to the voltage of the power supply.
The configuration of the clock 100 and the communication device 200 of the second embodiment is the same as the configuration of the first embodiment.

In addition to the operation described in the first embodiment, the pointer control unit 1016 further determines the number of motors 122 that can be simultaneously driven according to the voltage value detected by the battery voltage detection unit 112. The pointer control unit 1016 acquires, for example, information indicating the voltage value of the secondary battery 109 from the battery voltage detection unit 112 at predetermined time intervals.
In addition to the information described in the first embodiment, the storage unit 105 stores the number of motors 122 that can be simultaneously driven in association with the voltage value range of the power supply.

FIG. 12 is a diagram showing an example of the range of the voltage value of the power supply stored in the storage unit 105 according to the present embodiment and the number of motors 122 that can be driven simultaneously.
In the example shown in FIG. 12, the voltage value of the secondary battery 109 is 2.5 V or more, and the number of motors that can be driven simultaneously is 3. The voltage value of the secondary battery 109 is 2.40 V or more and less than 2.50 V, and the number of simultaneous driveable motors 3 is associated with it. The voltage value of the secondary battery 109 is 2.30 V or more and less than 2.40 V, and the number of motors that can be driven simultaneously is 3. When the voltage value of the secondary battery 109 is larger than 2.25V and less than 2.30V, the number of motors 2 that can be driven simultaneously is 2. The voltage value of the secondary battery 109 is 2.25 V or less, and the number of motors that can be driven simultaneously is 1.

Next, an example of a processing procedure for setting the number of motors 122 that can be simultaneously driven based on the voltage of the secondary battery 109 will be described.
FIG. 13 is a flowchart of a process for setting the number of motors 122 that can be simultaneously driven based on the voltage of the secondary battery 109 according to the present embodiment.

(Step S21) The pointer control unit 1016 determines whether or not it is the timing (acquisition timing) for monitoring the voltage of the secondary battery 109. When the pointer control unit 1016 determines that it is not the timing to monitor the voltage of the secondary battery 109 (step S21; NO), the pointer control unit 1016 repeats the process of step S21. When the pointer control unit 1016 determines that it is time to monitor the voltage of the secondary battery 109 (step S21; YES), the pointer control unit 1016 proceeds to the process of step S22.

(Step S22) The pointer control unit 1016 measures (acquires) the voltage of the secondary battery 109 by acquiring the voltage value detected by the battery voltage detection unit 112.
(Step S23) The pointer control unit 1016 determines the number of motors that can be simultaneously driven corresponding to the measured secondary battery 109 with reference to the storage unit 105.
With the above, the pointer control unit 1016 ends the process of setting the number of motors 122 that can be simultaneously driven based on the voltage of the secondary battery 109.

In the first embodiment, an example in which three motors 122 are simultaneously driven based on the drive priority has been described, but in the present embodiment, the number of motors that can be simultaneously driven is determined according to the voltage value of the secondary battery 109. can do. The pointer control unit 1016 controls, for example, to drive two motors 122 at the same time when the voltage value of the secondary battery 109 is 2.26V. The reason for limiting the number of motors 122 to be driven at the same time in this way is that the terminal voltage of the secondary battery 109 drops due to the internal resistance of the secondary battery 109 because the current consumption of the motor 122 is large. Is.
Even in this case, the priority order selected by the pointer control unit 1016 preferably gives priority to the second hand 120A, the minute hand 120B, and the hour hand 120C used for timing.

As described above, according to the present embodiment, the number of motors 122 that can be simultaneously driven can be changed according to the voltage of the secondary battery 109.

Here, a modified example of the present embodiment will be described.
The storage unit 105 stores information regarding the current consumption of each of the motors 122 (resistance value, current value, etc. of the motor 122).
The pointer control unit 1016 reads or calculates the current consumption of each of the motors 122, and calculates the sum of the current consumption. Then, the pointer control unit 1016 may change the number of motors 122 that can be simultaneously driven according to the calculated sum of the current consumption. Even in this case, it is preferable to give priority to the second hand 120A, the minute hand 120B, and the hour hand 120C used for timing.

Further, the number of motors 122 that can be simultaneously driven may be changed based on the sum of the current consumption of the motors 122 described above according to the voltage value of the secondary battery 109. Even in this case, it is preferable to give priority to the second hand 120A, the minute hand 120B, and the hour hand 120C used for timing.

According to such a modification of the present embodiment, the number of motors 122 that can be driven simultaneously can be changed.

[Third Embodiment]
In the third embodiment, an example in which the pointer control unit 1016 determines the drive priority according to the drive time will be described with reference to FIGS. 7 and 8.
The pointer control unit 1016 determines the drive priority order as shown in FIGS. 7 and 8 according to the drive time from the current position to the drive target position. Even in this case, it is preferable to give priority to the second hand 120A, the minute hand 120B, and the hour hand 120C used for timing.

In the example shown in FIG. 7, the pointer control unit 1016 places the second hand 120A in the first place, the hour hand 120C in the second place, the minute hand 120B in the third place, the date wheel 120E in the fourth place, and the small clock pointer 120D in the order of shortest driving time. Decide on the place.
Further, in the example shown in FIG. 8, the pointer control unit 1016 places the second hand 120A in the first place, the minute hand 120B in the second place, the hour hand 120C in the third place, the small clock pointer 120D in the fourth place, and the date wheel 120E in ascending order of driving time. To 5th place.

Next, an example of the driving priority determination processing procedure according to the driving time will be described.
FIG. 14 is a flowchart of the drive priority determination process according to the drive time according to the present embodiment.

(Step S31) The pointer control unit 1016 calculates the number of drive pulses at the time of normal rotation for each of the pointers 120 from the difference between the current position and the drive target position.
(Step S32) The pointer control unit 1016 calculates the driving time of each of the pointers 120 at the time of normal rotation. Subsequently, the pointer control unit 1016 calculates the drive time of each of the pointers 120 at the time of reversal with reference to the storage unit 105. Subsequently, the pointer control unit 1016 compares the calculated forward rotation drive time with the reverse rotation drive time, and determines the drive direction in which the drive time is shorter.

(Step S33) The pointer control unit 1016 calculates each drive time using the drive frequency (32 Hz or 64 Hz) used for driving each of the motors 122 according to the drive rotation direction and the number of drive steps. The pointer control unit 1016 may calculate each drive time in step S32 and store it in the storage unit 105.

(Step S34) The pointer control unit 1016 compares the calculated drive times, and the shorter the drive time, the higher the priority is set. Subsequently, the pointer control unit 1016 stores the set drive priority in the storage unit 105.
With the above, the pointer control unit 1016 ends the process of determining the drive priority according to the drive time.

As an example, when the driving time of each step requiring driving is 156 msec for the second hand 120A, 8 msec for the minute hand 120B, 40 msec for the hour hand 120C, 120 msec for the date wheel 120E, and 1 msec for the small clock pointer 120D, the pointer control unit 1016 The drive priority is set to the small clock pointer 120D for the first place, the minute hand 120B for the second place, the second hand 120A for the third place, the hour hand 120C for the fourth place, and the day wheel 120E for the fifth place.

As described above, according to the present embodiment, the shorter the time required for driving, the higher the priority can be set.

Further, the pointer control unit 1016 may set the drive priority to be higher as the number of steps to be driven is smaller. In this case as well, the pointer control unit 1016 may store the set drive priority in the storage unit 105. For example, when the number of steps required to be driven is 10 steps for the second hand 120A, 8 steps for the minute hand 120B, 40 steps for the hour hand 120C, 120 steps for the date wheel 120E, and 1 step for the small clock pointer 120D, the drive priority is The first place is the small clock pointer 120D, the second place is the minute hand 120B, the third place is the second hand 120A, the fourth place is the hour hand 120C, and the fifth place is the date wheel 120E.

A program for realizing a part or all of the functions of the control unit 101 in the present invention is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed. As a result, the processing performed by the control unit 101 may be performed. The term "computer system" as used herein includes hardware such as an OS and peripheral devices. Further, the "computer system" shall also include a WWW system provided with a homepage providing environment (or display environment). Further, the "computer-readable recording medium" refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, or a CD-ROM, or a storage device such as a hard disk built in a computer system. Furthermore, a "computer-readable recording medium" is a volatile memory (RAM) inside a computer system that serves as a server or client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, it shall include those that hold the program for a certain period of time.

Further, the program may be transmitted from a computer system in which this program is stored in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the "transmission medium" for transmitting a program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. Further, the above program may be for realizing a part of the above-mentioned functions. Further, it may be a so-called difference file (difference program) that can realize the above-mentioned function in combination with a program already recorded in the computer system.

1 ... Clock system, 72 ... Dial, 73 ... Index bar, 74 ... First scale ring, 75 ... Second scale ring, 100 ... Clock, 101 ... Control unit, 102 ... Oscillation circuit, 103 ... Divider circuit , 104 ... Input unit, 105 ... Storage unit, 106 ... Solar battery, 107 ... Charge / discharge control circuit, 109 ... Secondary battery, 112 ... Battery voltage detection unit, 110 ... Switch, 111 ... Wireless communication control unit, 120 ... Guideline , 120A ... second hand, 120B ... minute hand, 120C ... hour hand, 120D ... small clock pointer, 120D1 ... minute hand, 120D2 ... hour hand, 120D3 ... 24 hour hand, 120E ... day wheel, 121, 121A, 121B, 121C, 121D, 121E ... wheel Row mechanism, 122 ... motor, 122A, 122B, 122C, 122D, 122E ... stepping motor, 1011 ... power supply control unit, 1012 ... time counting unit, 1013 ... communication control unit, 1014 ... information processing unit, 1015 ... information transmission / reception unit, 1016 ... Pointer control unit, 1111 ... Antenna, 1112 ... Short-range wireless communication unit, 200 ... Communication equipment, 201 ... Control unit, 202 ... Input unit, 203 ... Display unit, 204 ... Storage unit, 205 ... Antenna, 206 ... Near Distance wireless communication unit

Claims (8)

Multiple motors that operate the actuator, including at least pointers,
A storage unit that stores the number of simultaneous drive motors that can be driven simultaneously among the plurality of motors and the drive priority when the plurality of motors are simultaneously driven.
The number of motors being driven among the plurality of motors is monitored, and after the driving of the first motor among the plurality of motors is stopped, the number of motors being driven by the monitoring is smaller than the number of simultaneous driving motors. In this case, a control unit that drives a second motor having a lower drive priority than the first motor,
A clock equipped with. The drive priority stored in the storage unit is set higher in at least one of the cases where the number of steps required for one round rotation of the operating body is small and the time required for one round rotation of the operating body is short. The clock of claim 1. A main display unit composed of at least one of an hour hand, a minute hand, and a second hand as the operating body,
A sub-display unit composed of the operating body different from the main display unit is provided.
The drive priority stored in the storage unit is such that the drive priority of the operating body in the main display unit is set higher than the driving priority of the operating body in the sub display unit. Alternatively, the watch according to claim 2. The control unit calculates the required operating time required to operate the operating body to a desired drive target position, and sets the driving priority higher as the required operating time decreases. The timepiece according to any one of 3. The control unit calculates the required number of steps required to operate the operating body to a desired target position, and sets the drive priority higher as the required number of steps decreases. The timepiece according to any one of the above. Equipped with power supply
The clock according to any one of claims 1 to 4, wherein the control unit measures the power supply voltage of the power supply and changes the number of simultaneous drive motors according to the power supply voltage. The storage unit stores the current consumption value of each of the plurality of motors or the resistance value corresponding to the current consumption value, and stores the correspondence relationship between the current consumption value and the number of simultaneous drive motors.
The control unit calculates the total value of the current consumption values of the motors required to operate the operating body, and reads and reads out the number of simultaneous drive motors corresponding to the total value based on the correspondence relationship. The clock according to any one of claims 1 to 6, which drives the plurality of motors based on the number of simultaneous drive motors. At least the operating member including a guide of the desired multiple motors that Ru is operated to drive the target position, to set the drivable number of simultaneously driven motors simultaneously,
Set the drive priority when driving the plurality of motors at the same time,
Drive a number of motors that match the number of simultaneous drive motors, including the first motor selected based on the drive priority.
When the operating member operated by said first motor has reached the desired target location, stopping the driving of the pre-Symbol first motor,
Number of motors in the drive it is judged whether or not less than the simultaneously driven motors number,
If the number of motors in the drive is determined to be smaller than the simultaneous drive motor speed, the driving priority than the first motor Ru drives the lower second motor,
Control method of the time meter.

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