JP2017122707A - Pointer driving motor unit, electronic apparatus, and method for controlling the pointer driving motor unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pointer driving motor unit, a multifunctional electronic apparatus, and a method for controlling the pointer driving motor unit that can easily control drive of a clock pointer with a stepping motor.SOLUTION: The pointer driving motor unit includes: a supporting member; a stepping motor rotating a pointer, the printer being supported to be capable of rotating around the supporting member; a plurality of input units including a first input unit receiving an input of a first command signal from a main controller and a second input unit receiving an input of a second command signal from the main controller; and a controlling unit in the supporting member, the controlling unit outputting a first drive signal for driving the pointer with a first action to the stepping motor based on a result of comparing the first command signal with a predetermined threshold value and outputting a second drive signal for driving the pointer with a second action to the stepping motor based on a result of comparing the second command signal with a predetermined threshold value.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pointer driving motor unit, an electronic device, and a method for controlling a pointer driving motor unit.

  As a conventional technique, an electronic timepiece including a time display unit and an additional unit is known (for example, see Patent Document 1). For example, the time display unit is equipped with a crystal oscillator, MOSIC (Metal-Oxide-Semiconductor Integrated Circuit) chip, wheel train, motor, battery, etc., and the additional unit is equipped with a drive IC for additional functions, etc. Has been. This clock display unit is equipped with a battery that serves as a power source for driving the main control unit (microcomputer), and is also equipped with a crystal that serves as a reference clock for the system including the main control unit. It has a configuration. That is, this timepiece display unit is a unitized movement of a conventional analog timepiece.

JP 2002-323577 A

  However, if the movement is simply unitized by the conventional technique such as Patent Document 1, the main control unit is also mounted in the unit in addition to the motor. Moreover, even if the main control unit is taken out of the unit, the driving of the pointer of the unit may be controlled according to the characteristics of the motor in each unit, so that the control from the external main control unit may be complicated. There was a risk that unit control could not be performed properly.

  The present invention has been made in view of the above points, and provides a pointer driving motor unit, an electronic device, and a method for controlling the pointer driving motor unit that can easily control the driving of the hands of the timepiece by the stepping motor. The purpose is to do.

  In order to achieve the above object, a pointer driving motor unit according to an aspect of the present invention includes a support, a stepping motor that rotates a pointer that is rotatably supported with respect to the support, and an exterior of the support. A first input unit to which a first command signal is input from a main control unit connected to the support body, and a second input unit to which a second command signal is input from the main control unit. Based on a result of comparing the first command signal provided to the plurality of input units and the first input unit and input to the first input unit with a predetermined threshold, the pointer is driven in a first operation. A first drive signal is output to the stepping motor, and the pointer is driven in a second operation based on a result of comparing the second command signal input to the second input unit with a predetermined threshold value. The second drive signal is changed to the stepping mode. And a control unit for outputting to.

  In the pointer drive motor unit according to one aspect of the present invention, the correspondence between the first input unit and the first drive signal, and the second input unit and the second drive signal And a storage unit that stores a correspondence table indicating the correspondence relationship including the correspondence relationship.

  In the pointer drive motor unit according to one aspect of the present invention, the stepping motor includes a first stepping motor that rotates the first pointer and a second stepping motor that rotates the second pointer. The control unit outputs the first drive signal to the first stepping motor and the second stepping based on a pulse mode of the first command signal input to the first input unit. Based on the pulse form of the second command signal output to one or both of the motors and input to the second input unit, the second drive signal is sent to the first stepping motor and You may make it output to any one or both of a said 2nd stepping motor.

  In the pointer drive motor unit according to one aspect of the present invention, the input unit includes a third input unit to which a third command signal is input from the main control unit, and a fourth input from the main control unit. A fourth input unit to which a command signal is input, and the stepping motor includes: a first stepping motor that rotates the first pointer; and a second stepping motor that rotates the second pointer. The control unit includes the first drive signal for causing the first stepping motor to rotate forward in response to a pulse of the first command signal input to the first input unit. The first stepping motor outputs the second driving signal that is output to the stepping motor and reverses the first stepping motor in accordance with the pulse of the second command signal input to the second input unit. Output to In response to the pulse of the third command signal input to the third input unit, the third driving signal for causing the second stepping motor to rotate forward is output to the second stepping motor. In response to the pulse of the fourth command signal input to the fourth input section, the fourth drive signal for reversing the second stepping motor is output to the second stepping motor, and the storage The unit stores a correspondence relationship including a correspondence relationship between the third input portion and the third drive signal and a correspondence relationship between the fourth input portion and the fourth drive signal. May be.

  In the pointer drive motor unit according to one aspect of the present invention, the pulse mode may include any one or a combination of a pulse amplitude, a pulse width, a duty ratio, a frequency, and a pulse number. Also good.

  In order to achieve the above object, an electronic device according to an aspect of the present invention includes the above-described pointer driving motor unit, a base body on which the main control unit is disposed, the main control unit, and the plurality of input units. A connecting portion that connects the two to each other and a mounting portion that can be worn by the user may be provided so that the time as a clock can be indicated by the hands.

  In order to achieve the above object, a method for controlling a pointer driving motor unit according to an aspect of the present invention includes a support, a stepping motor that rotates a pointer that is rotatably supported by the support, and the support. A first input unit to which a first command signal is input from a main control unit connected to the support body from outside the body, and a second input unit to which a second command signal is input from the main control unit A pointer driving motor unit control method comprising: a plurality of input units including: a control unit provided on the support, wherein the control unit is input to the first input unit. Based on the result of comparing the command signal with a predetermined threshold value, a first drive signal for driving the pointer in a first operation is output to the stepping motor and input to the second input unit. The command signal was compared with a predetermined threshold Based on the result, and outputs a second driving signal for driving the pointer in the second operation to the stepping motor.

  According to the present invention, it is possible to easily control the driving of the hands of the timepiece by the stepping motor.

It is a block diagram which shows the structure of the electronic device 1 containing the pointer drive motor unit in 1st Embodiment. It is a figure which shows an example of the drive signal corresponding | compatible table 55a which the memory | storage part 55 memorize | stores. It is a figure which shows an example of the drive signal SIG_E production | generation table 55b which the memory | storage part 55 memorize | stores. It is a figure which shows an example of the continuous operation | movement of the 1st pointer | guide 58 rotated by the drive signal SIG_E. It is a flowchart which shows an example of the flow of a process of the control part 56 in 1st Embodiment. It is a flowchart which shows the other example of the flow of a process of the control part 56 in 1st Embodiment. It is a figure which shows an example of the drive signal which the control part outputs. It is a block diagram which shows the structure of 1 A of electronic devices containing the pointer drive motor unit in 2nd Embodiment. It is a figure which shows typically an example of the determination method of the control object by the control part. It is a figure which shows typically the other example of the determination method of the control object by the control part. It is a flowchart which shows an example of the flow of a process of the control part 56 in 2nd Embodiment. It is a flowchart which shows the other example of the flow of a process of the control part 56 in 2nd Embodiment. It is a figure which shows an example of the drive signal corresponding | compatible table 55a which the memory | storage part 55 in 2nd Embodiment memorize | stores. It is a block diagram which shows the structure of the electronic device 1B containing the pointer drive motor unit in 3rd Embodiment. It is a figure which shows an example of the drive signal corresponding | compatible table 55a which the memory | storage part 55 in 3rd Embodiment memorize | stores. It is a figure which shows an example of the relationship between the clock input into the control part 56 which concerns on 3rd Embodiment, and a drive signal. It is a flowchart which shows an example of the flow of a process of the control part 56 in 3rd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a configuration diagram illustrating a configuration of an electronic device 1 including a pointer driving motor unit according to the first embodiment. The electronic device 1 in the first embodiment is, for example, a smart watch having a wireless communication function. For example, the electronic device 1 operates in accordance with an instruction from an external device. The electronic device 1 may be an electronic timepiece that can execute a program received from an external device such as the terminal 20. The electronic device 1 may be an electronic timepiece that accesses a network including a relay device such as a base station or a router and downloads the program.

  The electronic device 1 includes, for example, an oscillation circuit 2, an operation unit 3, a main control unit 4, a first pointer driving motor unit 5, and a communication unit 10. In addition, the electronic device 1 includes a belt (mounting portion) BL (see FIG. 4 described later) so that it can be mounted on an arm or the like. In addition, the electronic device 1 communicates with the terminal 20 to transmit and receive information. The terminal 20 is, for example, a smartphone (multifunctional mobile phone), a tablet terminal, a personal computer, a portable game device, a home network device, an in-vehicle system device, or the like.

  An oscillation circuit 2, an operation unit 3, and a communication unit 10 are connected to the main control unit 4. The main controller 4 is disposed on a support (base) different from a support 51 on which a first pointer driving motor unit 5 described later is disposed. Any number of signal lines WR are connected. The number of signal lines WR may be changed according to the type of signal output from the main control unit 4 to the first pointer drive motor unit 5. In the present embodiment, as an example, it is assumed that six (n = 6) signal lines WR are connected to the main control unit 4 and the first pointer driving motor unit 5. The signal line WR is an example of a “connection unit”.

  The oscillation circuit 2 includes, for example, a 32.768 kHz crystal resonator, divides a signal generated by the crystal resonator, generates a reference signal for ticking time in the main control unit 4, and generates the reference signal. The reference signal is output to the main control unit 4.

  The operation unit 3 is, for example, a crown or a button. The operation unit 3 outputs an operation signal corresponding to the operation to the main control unit 4 when operated by a user (for example, a rotation operation or a pressing operation). The operation signal includes, for example, an instruction to adjust the position of each pointer (time adjustment instruction), a chronograph measurement start instruction, a chronograph measurement end instruction, an instruction to reset the chronograph display, an alarm setting time, and the like. It may be.

  The communication unit 10 uses, for example, a Wi-Fi (Wireless Fidelity) standard or a Bluetooth (registered trademark) LE (Low Energy) (hereinafter referred to as BLE) standard communication method to transmit instructions and information to and from the terminal 20. Send and receive. The instruction received from the terminal 20 includes, for example, an instruction to move the pointer in 1 second, an instruction to drive the pointer in the forward direction (clockwise) by a predetermined angle, and a pointer in the reverse direction (counterclockwise) by a predetermined angle. It includes an instruction to drive, an instruction to count down (-1 second), an instruction to continuously drive the pointer, an instruction to stop the 1 second or -1 second movement, and the like.

  The communication unit 10 outputs information received from the terminal 20 to the main control unit 4. In addition, the communication unit 10 transmits information output from the main control unit 4 to an external device such as the terminal 20. The information output from the main control unit 4 may include, for example, a response to information received from the terminal 20, information indicating the number of units included in the electronic device 1, information indicating the number of pointers included in the electronic device 1, and the like.

  The main control unit 4 controls the operation of the electronic apparatus 1 by a processor such as a CPU (Central Processing Unit) executing a program stored in a storage unit (not shown). The CPU is expressed as a concept including an MPU (microprocessor unit) and an MCU (microcontroller unit), and may be any one that can achieve any of the functions, operations, and effects of the present invention.

  The main control unit 4 acquires the instruction output from the communication unit 10 and controls the corresponding signal line WR according to the acquired instruction. When the main control unit 4 obtains an instruction to move the pointer in 1 second, the signal level of the signal line WRa is less than a threshold value (hereinafter referred to as L (low) level) to a threshold value (hereinafter referred to as H (high)). (Referred to as level) for a predetermined time. The main control unit 4 may change the signal level from the H level to the L level for a predetermined time. In any case, a change from the L level to the H level or from the H level to the L level is detected by detecting whether or not the predetermined threshold value is exceeded.

When the main control unit 4 acquires an instruction to drive the pointer in the forward direction (clockwise) by a predetermined angle, the main control unit 4 changes the signal line WRb from the L level to the H level for a predetermined time. When the main control unit 4 obtains an instruction to drive the pointer in the reverse direction (counterclockwise) by a predetermined angle, the main control unit 4 changes the signal line WRc from the L level to the H level. When the main control unit 4 obtains an instruction to count down (move in -1 second) based on the current time, the main control unit 4 changes the signal line WRd from the L level to the H level for a predetermined time. When the main control unit 4 acquires an instruction to continuously operate the hands, the main control unit 4 changes the signal line WRe from the L level to the H level for a predetermined time. When the main control unit 4 obtains an instruction to stop the movement of 1 second or −1 second, the main control unit 4 changes the signal line WRf from the L level to the H level for a predetermined time. In the present embodiment, a signal output from the main control unit 4 to the control unit 56 is also referred to as a command signal.
In the present embodiment, any one of the command signals output from the signal line WRa to WRf is a “first command signal”, and at least one of the remaining is a “second command signal”.

  As described above, in the present embodiment, the main control unit 4 simply changes the signal level of the corresponding signal line WR from the L level to the H level in response to the instruction transmitted by the terminal 20 that is the external device. 1 The pointer driving motor unit 5 is controlled.

  In the command signal, the signal parameters such as the amplitude (signal level) of the pulse signal, the pulse width, the duty ratio, the frequency, and the number of pulses may be different for each signal line WR, or the type of the signal line WR to be output. Regardless, the signal parameters may be the same. The signal parameter in the command signal is an index representing an example of the “pulse mode”. The command signal is not limited to a rectangular pulse signal, and may be a triangular wave signal, a sawtooth wave signal, a sine wave signal, or an impulse signal.

  When the communication unit 10 receives information continuously from the terminal 20, the main control unit 4 outputs a command signal to the signal line WR in the order of reception.

  The first pointer drive motor unit 5 includes a support 51, an input unit 52, an oscillation circuit 54, a storage unit 55, a control unit 56, a first motor 57, and a first pointer 58. The first pointer 58 may be attached to the outside of the first pointer driving motor unit 5 in some cases.

  The support 51 includes a substrate, a base plate serving as a base, a receiving plate that holds components arranged on the base plate from the opposite side, other case portions, and a bearing to which the rotating shaft of the first motor 57 is joined. A substrate is arranged on the ground plate, and on the substrate, wiring, input unit 52, oscillation circuit 54, storage unit 55, control unit 56, first motor 57, a gear train that transmits a torque from the motor, and the like Is placed. The unit is assembled by fastening these parts with a receiving plate. In addition, the ground plate is provided with an electrode serving as a connection terminal, which will be described later, and this electrode serves to electrically connect the internal electronic component and the outside of the unit.

  The input unit 52 is a communication interface of the control unit 56. The input unit 52 includes a first port terminal 52a connected to the signal line WRa, a second port terminal 52b connected to the signal line WRb, a third port terminal 52c connected to the signal line WRc, A fourth port terminal 52d connected to the signal line WRd, a fifth port terminal 52e connected to the signal line WRe, and a sixth port terminal 52f connected to the signal line WRf are provided. In the example of FIG. 1, each port terminal of the input unit 52 is provided separately from the support body 51 on which the control unit 56 is installed, but is not limited thereto. Each port terminal of the input unit 52 may be provided as a socket in the physical layer inside the control unit 56, or may be a virtual signal input / output port including each socket in the physical layer and the signal line WR. . One of the first port terminal 52a to the sixth port terminal 52f is an example of the “first input unit”, and the other port terminals are “second input unit”. It is an example.

  The oscillation circuit 54 includes, for example, a 32.768 kHz crystal resonator, and divides the signal generated by the crystal resonator (frequency division ratio: 1 / n) to drive a reference for driving the first pointer. A signal is generated, and the generated reference signal is output to the control unit 56. For example, the oscillation circuit 54 generates a reference signal of 1 Hz (n = 1). In addition, the oscillation circuit 54 changes the frequency division ratio and generates a reference signal under the control of the control unit 56. For example, the oscillation circuit 54 changes the division ratio to generate a reference signal of 64 Hz (n = 64). The reference signal is synonymous with the clock signal.

  The first motor 57 is a stepping motor and rotates based on a drive signal output from the control unit 56. A first pointer 58 is rotatably supported on a rotation shaft (not shown) of the first motor 57. The first pointer 58 is supported by a bearing included in the support 51 and rotates with respect to the support 51 as the first motor 57 is driven to rotate.

  The storage unit 55 may be realized by a nonvolatile storage medium such as a ROM (Read Only Memory) and a flash memory, for example. The storage unit 55 stores a program executed by the processor, and stores a drive signal correspondence table 55a and a drive signal SIG_E generation table 55b, which will be described later. The drive signal correspondence table 55a and the drive signal SIG_E generation table 55b are examples of the “correspondence table”.

The control unit 56 may be realized by hardware such as LSI (Large Scale Integration), ASIC (Application Specific Integrated Circuit), and FPGA (Field-Programmable Gate Array). The control unit 56 refers to the drive signal correspondence table 55a stored in the storage unit 55, and controls the first motor 57 according to the type of the port terminal of the input unit 52 to which the command signal is input from the main control unit 4. A drive signal for driving is generated. Then, the control unit 56 outputs the generated drive signal to the first motor 57.
The control unit 56 outputs a drive signal at the rising or falling timing of the signal output from the main control unit 4. The control unit 56 compares a predetermined threshold value with the signal, detects a rising edge of the signal or a falling edge of the signal based on the comparison result, and outputs a drive signal at the detected timing.

  FIG. 2 is a diagram illustrating an example of the drive signal correspondence table 55 a stored in the storage unit 55. As in the example shown in the drawing, the driving signal correspondence table 55a associates the operation pattern of the pointer with the driving signal for driving the pointer with this operation pattern for each type of port terminal. For example, the first port terminal 52a is associated with “1 second hand movement” and the drive signal SIG_A as an operation pattern. That is, the drive signal correspondence table 55a stores the correspondence between the operation of the first port terminal 52a, which is an input unit, the operation of the first pointer 58, and the drive signal of the first motor 57 that drives the first pointer 58. It is what has been.

  Next, the operation of the control unit 56 when a command signal is input to each port terminal will be described. When a command signal is input to the first port terminal 52a, the control unit 56 uses the frequency (for example, 1 Hz) of the reference signal generated by the oscillation circuit 54 to turn the first pointer 58 clockwise for 1 second. A drive signal SIG_A for moving the hands one by one is generated. Then, the control unit 56 outputs the generated drive signal SIG_A to the first motor 57, and rotates the first pointer 58 clockwise by 6 degrees every second.

  When a command signal is input to the second port terminal 52b, the control unit 56 uses the frequency of the reference signal generated by the oscillation circuit 54 to turn the first pointer 58 clockwise by a predetermined angle (for example, , 60 degrees), a drive signal SIG_B is generated. Then, the control unit 56 outputs the generated drive signal SIG_B to the first motor 57, and rotates the first pointer 58 clockwise by a predetermined angle.

  When a command signal is input to the third port terminal 52c, the control unit 56 uses the frequency of the reference signal generated by the oscillation circuit 54 to turn the first pointer 58 counterclockwise by a predetermined angle ( For example, a drive signal SIG_C for rotation at 60 degrees is generated. Then, the control unit 56 outputs the generated drive signal SIG_C to the first motor 57, and rotates the first pointer 58 counterclockwise by a predetermined angle.

  When a command signal is input to the fourth port terminal 52d, the control unit 56 uses the frequency of the reference signal generated by the oscillation circuit 54 to turn the first pointer 58 counterclockwise every second. A drive signal SIG_D for moving the hand is generated. Then, the control unit 56 outputs the generated drive signal SIG_D to the first motor 57, and rotates the first pointer 58 counterclockwise by 6 degrees every second.

  When a command signal is input to the fifth port terminal 52e, the control unit 56 changes the division ratio of the oscillation circuit 54, and the reference generated by the oscillation circuit 54 that has changed the division ratio. A drive signal SIG_E for causing the first pointer 58 to perform a predetermined continuous operation is generated using the frequency of the signal (for example, 64 Hz). The predetermined continuous movement is, for example, a series of pointer movements that are unrelated to time measurement. The command signal input to the fifth port terminal 52e by the main control unit 4 is for the purpose of notifying the user that the terminal 20 has received an e-mail, a reminder notification, or the like using the electronic device 1. Therefore, the control unit 56, for example, rotates the hands clockwise or counterclockwise several times in a few seconds as the operation of a series of hands unrelated to the time measurement, or rotates the hands irregularly. To attract the attention of the user. Such a pointer operation is realized by outputting a series of drive signals having different control contents to the first motor 57 continuously or intermittently. For example, the control unit 56 generates the series of drive signals with reference to the drive signal SIG_E generation table 55b stored in the storage unit 55.

  When a command signal is input to the sixth port terminal 52f, the control unit 56 uses the frequency of the reference signal generated by the oscillation circuit 54 to move the first pointer 58 clockwise for 1 second or − A drive signal SIG_F for stopping the operation of moving the hands every second is generated. Then, the control unit 56 outputs the generated drive signal SIG_F to the first motor 57, and stops the driving of the first pointer 58.

  FIG. 3 is a diagram illustrating an example of the drive signal SIG_E generation table 55b stored in the storage unit 55. As shown in FIG. 3, for each control item indicating the control content, a slot number (slot No. in the figure) is associated with a frequency. The slot number represents the order of processing. The control items include, for example, the pointer drive speed (needle drive speed in the figure), the pointer rotation direction (rotation direction in the figure), the pointer rotation angle (rotation angle in the figure), and the pointer rotation operation. Information (in the figure, whether or not reciprocation is possible), and the like are included. These control items are associated with each slot number, and the control unit 56 generates a drive signal according to the content of the control item for each slot number. At this time, the control unit 56 generates a drive signal at a frequency (for example, 64 Hz) associated with the control item. Then, the control unit 56 sequentially outputs N drive signals corresponding to the slot numbers 1 to N to the first motor 57 sequentially from the corresponding slot number in ascending order, for example. A set of this series of N drive signals corresponds to the drive signal SIG_E. In other words, the drive signal SIG_E generation table 55b stores the correspondence between the operation of the first pointer 58 and the drive signal for driving the first motor 57 in accordance with the operation.

  FIG. 4 is a diagram illustrating an example of a continuous operation of the first pointer 58 that is rotationally driven by the drive signal SIG_E. The drive signal SIG_E (a series of drive signals) generated using the drive signal SIG_E generation table 55b is, for example, as shown in FIG. This is a signal for controlling the first motor 57 so as to reciprocate many times within a range of time. The control unit 56 outputs such a drive signal SIG_E to the first motor 57 to control the drive of the first pointer 58 as shown in the figure. As another continuous operation of the first pointer 58, the control unit 56 controls the first pointer 58 by irregular driving such as 30 degrees, 60 degrees, 30 degrees,. May be.

FIG. 5 is a flowchart illustrating an example of a processing flow of the control unit 56 in the first embodiment. The processing of this flowchart may be repeatedly performed at a cycle of 1 Hz, for example.
First, the control unit 56 sequentially acquires the level of the command signal of each of the first to fourth port terminals. For example, the control unit 56 acquires the level of the command signal in the order from the first port terminal to the fourth port terminal. Subsequently, the control unit 56 determines whether or not the level of the command signal at any of the first to fourth port terminals is H level (step S100). When it is determined that the command signal level of any of the first to fourth port terminals is H level (step S100; Yes), the control unit 56 detects that the command signal level is H level. It is determined whether or not the command signal level of another port terminal different from the port terminal is H level (step S102).

  When it is determined that the level of any command signal of the first to fourth port terminals is not H level (step S100; No), or the level of the command signal of two or more port terminals is determined to be H level. If it has been performed (step S102; Yes), the control unit 56 ends the process of this flowchart without generating a drive signal. When the control unit 56 and the main control unit 4 include a seventh port terminal (not shown), for example, the control unit 56 outputs an error signal to the main control unit 4 as a response to the instruction. Also good.

  On the other hand, when it is determined that the level of the command signal of only one port terminal is H level (step S102; No), the control unit 56 refers to the drive signal correspondence table 55a and the port to which the command signal is input. A drive signal SIG corresponding to the terminal is generated (step S104).

  Next, the control unit 56 outputs the generated drive signal SIG to the first motor 57 (step S106). Thereby, the process of this flowchart is complete | finished.

FIG. 6 is a flowchart illustrating another example of the processing flow of the control unit 56 in the first embodiment. The processing of this flowchart may be repeatedly performed at a cycle of 1 Hz, for example.
First, the control unit 56 determines whether or not the level of the command signal at the fifth port terminal 52e is H level (step S200). When the level of the command signal of the fifth port terminal 52e is H level (step S200; Yes), the control unit 56 issues a command signal of another port terminal different from the fifth port terminal 52e to which the command signal is input. It is determined whether or not the level is H level (step S202).

  When the level of the command signal of the fifth port terminal 52e is not H level (step S200; No), or when the level of the command signal of the plurality of port terminals is H level (step S202; Yes), the control unit 56 Then, the process of this flowchart ends.

  On the other hand, when only the command signal level of the fifth port terminal 52e is H level (step S202; No), the control unit 56 changes the frequency division ratio of the oscillation circuit 54 (step S204). Next, the control unit 56 uses the frequency of the reference signal generated by the oscillation circuit 54 in which the frequency division ratio is changed, to perform N drive signals (drive signals SIG_E) corresponding to the slot numbers 1 to N, respectively. ) Is generated (step S206).

Next, the control unit 56 sequentially outputs the N drive signals generated as the drive signal SIG_E to the first motor 57 in ascending order of slot numbers (or in descending order) (step S208). Thereby, the process of this flowchart is complete | finished.
In the example illustrated in FIG. 6, the example in which the drive signal is generated when the signal input to the control unit 56 changes from the low level to the high level is illustrated, but the control unit 56 receives the input signal. The drive signal may be generated when the high level changes to the low level.

  FIG. 7 is a diagram illustrating an example of a drive signal output from the control unit 56. In FIG. 7, the horizontal axis represents time t, for example, and the vertical axis represents signal level, for example. For example, the control unit 56 outputs a triangular wave signal that repeats at a frequency of 1 Hz as the drive signal SIG_A. Further, the control unit 56 outputs a single triangular wave signal as a drive signal SIG_B at a frequency of 1 Hz. Further, the control unit 56 outputs a signal whose polarity is inverted with respect to the drive signal SIG_B as the drive signal SIG_C. Further, the control unit 56 outputs a signal whose polarity is inverted with respect to the drive signal SIG_A as the drive signal SIG_D. In addition, the control unit 56 outputs a drive signal SIG_E in which drive signals generated according to the control content for each slot are continuous. Note that the control unit 56 outputs the drive signal SIG_F as a signal in which the signal level of the drive signal SIG_A or the drive signal SIG_D is set to L level (for example, 0) over the entire time.

  According to the first embodiment described above, when the command signal is input to any of the input unit 52 including the plurality of port terminals to which the command signal is input from the main control unit 4 and the plurality of port terminals. And a control unit 56 that outputs a drive signal corresponding to the type of the port terminal to which the command signal is input to the first motor 57, so that it is included in the first pointer drive motor unit 5 from the main control unit 4. The command signal to be output to the control unit 56 can be a simple signal, and the port terminal (signal line WR) to which the command signal is output is determined according to the information from the terminal 20, so that the timepiece of the watch is driven by the stepping motor Can be easily controlled.

  Further, according to the first embodiment, the program used for the processor of the main control unit 4 determines the port terminal (signal line WR) of the output destination of the command signal according to the information transmitted by the terminal 20, and the command This can be realized by a simple program that outputs a signal to the first pointer driving motor unit 5 via the signal line WR and the port terminal. Therefore, the creator of this program does not need to understand the characteristics of the motor and the generation method of the drive signal. For example, the main control unit 4 commands one of the first port terminal 52a to the sixth port terminal 52f. You only need to create a simple program that only outputs signals. As a result, according to the first embodiment, a load in creating a program can be reduced.

(Second Embodiment)
Hereinafter, an electronic apparatus 1A including the pointer driving motor unit according to the second embodiment will be described. The electronic device 1A including the pointer driving motor unit in the second embodiment is different from the electronic device 1 in the first embodiment in that it includes a plurality of units. Therefore, it demonstrates centering on such a difference and the description about a common part is abbreviate | omitted.

  FIG. 8 is a configuration diagram illustrating a configuration of an electronic apparatus 1A including a pointer driving motor unit according to the second embodiment. An electronic apparatus 1A according to the second embodiment includes the oscillation circuit 2, the operation unit 3, the main control unit 4, and the communication unit 10, and further includes a first pointer driving motor unit 5A and a second pointer driving motor. A unit 6, a third pointer driving motor unit 7, and an additional unit 8 are provided.

  The first pointer drive motor unit 5A includes, for example, a support 51, an input unit 52, an output unit 53, an oscillation circuit 54, a storage unit 55, a control unit 56, a first motor 57A, a second motor 57B, The second pointer 58B and the second pointer 58B are provided. The first pointer 58A and the second pointer 58B may be attached to the outside of the first pointer driving motor unit 5A.

  The support 51 includes a base plate, a base plate serving as a base, a receiving plate that holds parts arranged on the base plate from the opposite side, other case portions, bearings to which the rotation shafts of the first motor 57A and the second motor 57B are joined, and the like. including. A substrate is disposed on the ground plane, and wiring, input unit 52, output unit 53, oscillation circuit 54, storage unit 55, control unit 56, first motor 57A, second motor 57B, and torque from the motor are disposed on the substrate. A gear train or the like that is a gear train for transmitting the motor is disposed. The unit is assembled by fastening these parts with a receiving plate. In addition, the ground plate is provided with an electrode serving as a connection terminal, which will be described later, and this electrode serves to electrically connect the internal electronic component and the outside of the unit.

  The output unit 53 is, for example, a connection terminal for the second pointer driving motor unit 6, the third pointer driving motor unit 7, and the additional unit 8. A signal output from the control unit 56 is output to each unit via the output unit 53.

  The first motor 57A and the second motor 57B are, for example, stepping motors. First motor 57 </ b> A and second motor 57 </ b> B rotate based on a drive signal output from control unit 56. The first pointer 58A is supported by a bearing included in the support 51, and rotates with respect to the support 51 as the first motor 57A rotates. The second pointer 58B is supported by a bearing included in the support body 51, and rotates relative to the support body 51 as the second motor 57B is driven to rotate. For example, the first hand 58A is a minute hand and the second hand 58B is an hour hand.

  The second pointer drive motor unit 6 includes a support body 61, an input unit 62, a third motor 67, and a third pointer 68. The support 61 includes a substrate, a base plate serving as a base, a receiving plate that suppresses components arranged on the base plate from the opposite side, other case portions, and a bearing to which the rotating shaft of the third motor 67 is joined. A substrate is disposed on the ground plane, and a wiring, an input unit 62, a third motor 67, a gear train that is a gear train for transmitting torque from the motor, and the like are disposed on the substrate. The unit is assembled by fastening these parts with a receiving plate. In addition, the ground plate is provided with an electrode serving as a connection terminal, which will be described later, and this electrode serves to electrically connect the internal electronic component and the outside of the unit.

  The third motor 67 is, for example, a stepping motor. The third motor 67 rotates based on the drive signal output from the control unit 56. The third pointer 68 is supported by a bearing included in the support body 61 and rotates relative to the support body 61 as the third motor 67 rotates. The third pointer 68 is, for example, a second hand.

  The third pointer drive motor unit 7 includes a support 71, an input unit 72, a fourth motor 77, and a fourth pointer 78. The support 71 includes a substrate, a base plate that serves as a base, a receiving plate that holds components arranged on the base plate from the opposite side, a case portion, and a bearing to which the rotating shaft of the fourth motor 77 is joined. A substrate is disposed on the ground plate, and a wiring, an input unit 72, a fourth motor 77, a gear train that is a gear train for transmitting torque from the motor, and the like are disposed on the substrate. The unit is assembled by fastening these parts with a receiving plate. In addition, the ground plate is provided with an electrode serving as a connection terminal, which will be described later, and this electrode serves to electrically connect the internal electronic component and the outside of the unit.

  The fourth motor 77 is, for example, a stepping motor. The fourth motor 77 rotates based on the drive signal output from the control unit 56. The fourth pointer 78 is supported by a bearing included in the support 71 and rotates with respect to the support 71 as the fourth motor 77 rotates. For example, the fourth pointer 78 is a chronograph function timing display hand or a display hand indicating various information sent from the terminal 20.

  The additional unit 8 includes a support body 81, an input unit 82, and a notification unit 89. The support 81 includes, for example, a case, a substrate, and the like. For example, the support body 81 includes a substrate, a base plate serving as a base, a receiving plate that holds components arranged on the base plate from the opposite side, and other case portions. A substrate is disposed on the ground plane, and wiring, an input unit 82, a notification unit 89, and the like are disposed on the substrate. The unit is assembled by fastening these parts with a receiving plate. In addition, the ground plate is provided with an electrode serving as a connection terminal, which will be described later, and this electrode serves to electrically connect the internal electronic component and the outside of the unit.

  The notification unit 89 is, for example, a buzzer, and notifies the sound according to the drive signal output from the control unit 56. Note that the notification unit 89 may be a lamp, a vibration element, or the like.

  For example, the first pointer driving motor unit 5 displays “hour” and “minute”, and the second pointer driving motor unit 6 displays “second”. The third pointer drive motor unit 7 displays the elapsed time and the measured result by the chronograph function. The additional unit 8 notifies the alarm sound at the time set by the user, or notifies the alarm sound under the control of the control unit 56. The operation of each unit described above is an example, and the present invention is not limited to this.

  The main control unit 4 controls the corresponding signal line WR according to the instruction received from the terminal 20. At this time, the main control unit 4 changes the signal parameter of the command signal propagating through the signal line WR to change the first pointer driving motor unit 5A, the second pointer driving motor unit 6, and the third pointer driving motor. Of the motors of the unit 7 and the notification unit 89 of the additional unit 8, a target (control target) to be controlled by the control unit 56 is designated. The main control unit 4 designates the number of objects to be controlled, for example, according to the number of pulses of the command signal output within a predetermined time.

The control unit 56 determines a control target based on a signal parameter of a command signal that propagates through the signal line WR when the main control unit 4 controls the signal line WR.
FIG. 9 is a diagram schematically illustrating an example of a method for determining a control target by the control unit 56. In FIG. 9, the horizontal axis represents time t, for example, and the vertical axis represents signal level, for example. As shown in the figure, for example, when the number of command signal pulses output within a predetermined time is one, the control unit 56 drives the first motor 57A of the first pointer driving motor unit 5A, When there are two pulses of the command signal, the second motor 57B of the first pointer driving motor unit 5A is driven. The control unit 56 drives the third motor 67 of the second pointer drive motor unit 6 when the number of command signal pulses is three, and the third pointer when the number of command signal pulses is four. The fourth motor 77 of the drive motor unit 7 is driven. Further, when the pulse width of the command signal is equal to or larger than a specified value (for example, twice), the control unit 56 drives the notification unit 89.

  Note that the method of specifying the control target (various motors, notification unit 89) is an example, and may be specified by a frequency, a duty ratio, or the like. FIG. 10 is a diagram schematically illustrating another example of a control target determination method by the control unit 56. In FIG. 10, the horizontal axis represents time t, for example, and the vertical axis represents signal level, for example. As shown in the figure, for example, when the duty ratio (= A / B) is a predetermined value (for example, 0.5) or more, the control unit 56 outputs a drive signal to the first motor 57A to output the first motor 57A. When the duty ratio (= A / B) is less than a predetermined value, the control unit 56 may drive the second motor 57B by outputting a drive signal to the second motor 57B.

  Moreover, although the example mentioned above demonstrated as what designates a single control object according to a command signal, it is not restricted to this. For example, when the command signal is a signal represented by a predetermined number of bits (for example, 3 bits), the rising edge of the pulse is detected by “1” by detecting the rising edge of the pulse every cycle with reference to the rising time of the leading pulse. The number of objects to be controlled may be specified by a binary number (binary) with the trailing edge set to “0”. For example, when the binary number represented by the command signal is “011”, the control unit 56 drives three control objects at the same time.

  When a plurality of control targets are specified at the same time, the control unit 56 may output drive signals to all the commanded control targets. For example, when the first motor 57A, the second motor 57B, and the third motor 67 are designated by the command signal input to the first port terminal 52a, the control unit 56 controls these three control objects. In addition, the drive signal SIG_A corresponding to the first port terminal 52a is output. Thereby, the electronic device 1 drives the first pointer 58A, the second pointer 58B, and the third pointer 68 with the same operation.

FIG. 11 is a flowchart illustrating an example of a processing flow of the control unit 56 in the second embodiment. The processing of this flowchart may be repeatedly performed at a cycle of 1 Hz, for example.
First, the control unit 56 performs processing similar to the processing from step S100 to step S104 in the flowchart shown in FIG. Next, the control part 56 determines the control object which outputs the produced | generated drive signal SIG based on the signal parameter of a command signal (step S308). Next, the control unit 56 performs processing similar to the processing in step S106 in the flowchart shown in FIG. Thereby, the process of this flowchart is complete | finished.

FIG. 12 is a flowchart illustrating another example of the processing flow of the control unit 56 in the second embodiment. The processing of this flowchart may be repeatedly performed at a cycle of 1 Hz, for example.
First, the control unit 56 performs processing similar to the processing from step S200 to step S206 in the flowchart shown in FIG. Next, the control part 56 determines the control object which outputs the produced | generated drive signal SIG_E based on the signal parameter of a command signal (step S410). Next, the control unit 56 performs processing similar to the processing in step S208 of the flowchart shown in FIG. Thereby, the process of this flowchart is complete | finished.

  11 and 12, the example in which the drive signal is generated when the signal input to the control unit 56 is changed from the low level to the high level is shown. However, the control unit 56 is not input. The driving signal may be generated when the signal changes from a high level to a low level.

  The control unit 56 outputs the drive signal SIG_A to the third motor 67 of the second pointer drive motor unit 6 when the level of the command signal of the first port terminal 52a is H level, The pointer 68 is controlled to move for 1 second. At this time, the control unit 56 controls the third pointer 68, counts the number of seconds based on the reference signal, and moves the first pointer 58A of the first pointer driving motor unit 5A when 60 seconds have elapsed. You may control to drive for 1 second.

  According to the second embodiment described above, as in the first embodiment, the command signal output from the main control unit 4 to the control unit 56 included in the first pointer drive motor unit 5A is a simple signal. In addition, since the port terminal (signal line WR) of the output destination of the command signal is determined according to the information from the terminal 20, the driving of the hands of the timepiece by the stepping motor can be easily controlled.

  Further, according to the second embodiment, in response to the command signal output from the main control unit 4, the control unit 56 is controlled by other units connected to the first pointer driving motor unit 5A ( A motor or a notification unit) can be driven. As a result, according to the second embodiment, it is possible to simultaneously satisfy the downsizing of the unit and the securing of controllability when a plurality of units are provided.

  Further, according to the second embodiment, when the electronic apparatus 1 includes a plurality of units, the control unit 56 generates and outputs a drive signal for each unit, so that the main control unit that performs communication processing with the terminal 20 4 processing load can be reduced.

(Modification of the second embodiment)
Hereinafter, modifications of the second embodiment will be described. In the modification of the second embodiment, a control target for outputting a drive signal is determined in advance according to a port terminal whose command signal level is controlled to H level. The correspondence between each port terminal and the control target may be stored in advance as the drive signal correspondence table 55a in the storage unit 55, or may be set based on an instruction transmitted by the terminal 20.

  For example, the control unit 56 refers to the drive signal correspondence table 55a stored in the storage unit 55 and determines an output destination unit of the generated drive signal.

  FIG. 13 is a diagram illustrating an example of the drive signal correspondence table 55a stored in the storage unit 55 according to the second embodiment. As shown in FIG. 13, in the drive signal correspondence table 55a of the second embodiment, the operation pattern of the pointer, the drive signal, and the output destination of the drive signal are associated with each port terminal type. . For example, the first port terminal 52a is associated with “1 second hand movement” as an operation pattern, a drive signal SIG_A, and an output destination “first pointer drive motor unit”.

  Next, the operation of the control unit 56 when a command signal is input to each port terminal will be described. As shown in FIG. 13, the drive signals SIG_A and SIG_B are output to the control target (first motor 57A and second motor 57B) provided in the first pointer drive motor unit 5A, and the drive signal SIG_C is The drive signal SIG_D is output to the control target (third motor 67) provided in the second pointer drive motor unit 6 and the drive signal SIG_D is the control target (fourth motor 77) provided in the third pointer drive motor unit 7. ), The drive signal SIG_E is output to the control object (notification unit 89) provided in the additional unit 8, and the drive signal SIG_F is the control object (first object) provided in the first pointer driving motor unit 5A. Motor 57A and second motor 57B). The notification unit 89 generates an alarm sound according to the drive signal SIG_E, and notifies the user that a mail has been received by the terminal 20, the presence or absence of a reminder, and the like.

  Note that the control unit 56 may output the same drive signal to other units in addition to the unit determined with reference to the drive signal correspondence table 55a. For example, the control unit 56 outputs the drive signals SIG_A and SIG_B to the control target (the first motor 57A and the second motor 57B) provided in the first pointer drive motor unit 5A and the second pointer drive. It may be output to a control object (third motor 67) provided in the motor unit 6 and a control object (fourth motor 77) provided in the third pointer drive motor unit 7.

(Third embodiment)
Hereinafter, an electronic apparatus 1B including the pointer driving motor unit according to the third embodiment will be described. The same reference numerals are used for functional units having the same functions as those of the electronic device 1 including the pointer driving motor unit in the third embodiment, and description thereof is omitted.

  FIG. 14 is a configuration diagram illustrating a configuration of an electronic apparatus 1B including a pointer driving motor unit according to the third embodiment. As shown in FIG. 14, the electronic device 1B according to the third embodiment includes an oscillation circuit 2, an operation unit 3, a main control unit 4, a communication unit 10, and a first pointer driving motor unit 5B. Note that the electronic device 1B may include an output unit 53 as in the electronic device 1A of the second embodiment.

  The support body 51B includes a substrate, a base plate serving as a base, a receiving plate that holds components arranged on the base plate from the opposite side, other case portions, and motors (first motor 57A, second motor 57B, and third motor 57C. ) Including a bearing to which a rotating shaft is joined. A substrate is arranged on the ground plane, and wiring, input unit 52B, storage unit 55, control unit 56, first motor 57A, second motor 57B, third motor 57C, and torque from the motor are transmitted on the substrate. A gear train that is a gear train is arranged. The unit is assembled by fastening these parts with a receiving plate. Note that an electrode serving as a connection terminal is disposed on the ground plate, and this electrode plays a role of electrically connecting the internal electronic component and the outside of the unit.

  The input unit 52B is a communication interface of the control unit 56. The input unit 52B includes a seventh port terminal 52g connected to the signal line CLK, a first port terminal 52a (first input unit) connected to the signal line WRa, and a first port terminal connected to the signal line WRb. 2 port terminal 52b (second input unit), a third port terminal 52c (third input unit) connected to the signal line WRc, and a fourth port terminal 52d (connected to the signal line WRd). A fourth input unit), a fifth port terminal 52e (fifth input unit) connected to the signal line WRe, and a sixth port terminal 52f (sixth input unit) connected to the signal line WRf. And comprising. Each port terminal of the input unit 52B may be provided as a socket in the physical layer inside the control unit 56, or is a virtual signal input / output port composed of each socket in the physical layer and the signal line WR. Also good. The signal line CLK is a clock output from the main control unit 4. That is, in this embodiment, as shown in FIG. 14, the first pointer drive motor unit 5B does not include an oscillation circuit, and acquires and uses the clock output from the main control unit 4.

  The first motor 57A, the second motor 57B, and the third motor 57C are, for example, stepping motors. The first motor 57A, the second motor 57B, and the third motor 57C rotate based on the drive signal output from the control unit 56. The first pointer 58A is supported by a bearing included in the support 51B, and rotates with respect to the support 51B as the first motor 57A rotates. The second pointer 58B is supported by a bearing included in the support 51B, and rotates with respect to the support 51B as the second motor 57B is driven to rotate. The third pointer 58C is supported by a bearing included in the support 51B, and rotates with respect to the support 51B as the third motor 57C is driven to rotate. For example, the first hand 58A is a second hand, the second hand 58B is a minute hand, and the third hand 58C is an hour hand. The first pointer 58A, the second pointer 58B, and the third pointer 58C may be attached to the outside of the first pointer drive motor unit 5B.

For example, the control unit 56 refers to the drive signal correspondence table 55a stored in the storage unit 55 and determines an output destination unit of the generated drive signal.
As described above, in the present embodiment, the first pointer driving motor unit 5B does not include the oscillation circuit and receives the supply of the clock signal from the main control unit 4.

  FIG. 15 is a diagram illustrating an example of the drive signal correspondence table 55a stored in the storage unit 55 according to the third embodiment. As shown in FIG. 15, in the drive signal correspondence table 55a, the operation pattern of the pointer, the drive signal, and the output destination of the drive signal are associated with each port terminal type. For example, the first port terminal 52a is associated with the operation pattern “one forward rotation of the first pointer”, the drive signal SIG_A, and the output first motor, and the fourth port terminal 52d is associated with an operation pattern “one reversal of the second pointer”, the drive signal SIG_D, and the output second motor.

Next, the operation of the control unit 56 when a command signal is input to each port terminal will be described.
As shown in FIG. 15, the drive signals SIG_A and SIG_B are output to the first motor 57A that is a control target. The drive signals SIG_C and SIG_D are output to the second motor 57B that is a control target. The drive signals SIG_E and SIG_F are output to the third motor 57C that is a control target.

As described above, in the first pointer drive motor unit 5B of the present embodiment, the input port 52B receives the first port terminal 52a (inputting a signal for causing the first motor 57A to perform normal rotation (first operation)). 1st input part), 2nd port terminal 52b (2nd input part) to which the signal which reversely rotates the 1st motor 57A (2nd operation) is inputted, and 2nd motor 57B forward The third port terminal 52c (third input unit) to which a signal for performing (third operation) is input and the fourth port to which a signal for causing reverse rotation (fourth operation) of the second motor 57B is input. A terminal 52d (fourth input unit), a fifth port terminal 52e (fifth input unit) to which a signal for normal rotation (fifth operation) of the third motor 57C is input, and a third motor A sixth port terminal 52 to which a signal for reversing 57C (sixth operation) is input It includes a (sixth input of) the. Further, the input unit 52B (first input unit) includes a seventh port terminal 52g to which a clock is input.
And the control part 56 produces | generates a drive signal according to the signal which the main control part 4 output, and outputs the produced | generated drive signal to the corresponding 1st motor 57A-3rd motor 57C. For example, when the main control unit 4 changes the signal line WRb from the low level to the high level, the control unit 56 drives the first motor 57A to reversely rotate. Note that the drive signal for rotating the first motor 57A forward is the first drive signal, and the drive signal for rotating the first motor 57A backward is the second drive signal. The drive signal for rotating the second motor 57B in the forward direction is the third drive signal, and the drive signal for rotating the second motor 57B in the reverse direction is the fourth drive signal. The drive signal for rotating the third motor 57C forward is the fifth drive signal, and the drive signal for rotating the third motor 57C reverse is the sixth drive signal. The command signal for rotating the first motor 57A forward is the first command signal, and the command signal for rotating the first motor 57A reverse is the second command signal. The command signal for rotating the second motor 57B in the forward direction is the third command signal, and the command signal for rotating the second motor 57B in the reverse direction is the second command signal. The command signal for rotating the third motor 57C forward is the fifth command signal, and the command signal for rotating the third motor 57C reverse is the sixth command signal. The storage unit 55 stores the correspondence between each port terminal 52 (nth input unit; n is an integer of 1 to 6) and each drive signal and output destination as shown in FIG.

Next, an example of the relationship between the clock input to the control unit 56 and the drive signal will be described.
FIG. 16 is a diagram illustrating an example of a relationship between a clock input to the control unit 56 according to the present embodiment and a drive signal. In FIG. 16, the horizontal axis represents time, and the vertical axis represents the signal level. A waveform g11 is a waveform of the clock signal SIG_CLK output from the main control unit 4. A waveform g12 is a waveform of a signal output from the main control unit 4 to the signal line WRa, and a waveform g13 is a waveform of the drive signal SIG_A. A waveform g14 is a waveform of a signal output from the main control unit 4 to the signal line WRb, and a waveform g15 is a waveform of the drive signal SIG_B.

  At time t1, as in the waveforms g11 and g12, the control unit 56 compares the level of the signal line output from the main control unit 4 to the signal line WRa with a predetermined threshold at the rising timing of the clock signal SIG_CLK. , Detecting that the level has changed from low to high. Then, at time t1, as shown by the waveform g13, the control unit 56 outputs the drive signal SIG_A to the first motor 57A after the main control unit 4 determines. In the example shown in FIG. 16, the drive signal SIG_A is output between times t1 and t2. However, the drive signal SIG_A may be a signal for driving the first pointer 58A by a predetermined angle. That's fine. Further, the number of forward rotations is one example in the example illustrated in FIG. 15, but is not limited thereto, and may be a number according to the application.

  At time t3, as in the waveforms g11 and g14, the control unit 56 compares the level of the signal line output from the main control unit 4 to the signal line WRb with a predetermined threshold at the rising timing of the clock signal SIG_CLK. , Detecting that the level has changed from low to high. Then, at time t3, as indicated by the waveform g15, the control unit 56 outputs the drive signal SIG_B to the first motor 57A after the main control unit 4 determines. In the example shown in FIG. 16, the drive signal SIG_A is output between the times t3 and t4. However, the drive signal SIG_B may be a signal for driving the first pointer 58A by a predetermined angle. That's fine. The number of times of reverse rotation is one example in the example shown in FIG. 15, but is not limited to this, and may be a number according to the application.

In the example shown in FIG. 16, the example in which the drive signal is generated when the signal input to the control unit 56 changes from the low level to the high level is shown, but the control unit 56 receives the input signal. The drive signal may be generated when the high level changes to the low level.
For example, at time t4, as in the waveform g11 and the waveform g14, the control unit 56 sets the level of the signal line output from the main control unit 4 to the signal line WRb at the falling timing of the clock signal SIG_CLK, In comparison, the change from the high level to the low level may be detected. Then, at time t4, as indicated by the waveform g16, the control unit 56 may output the drive signal SIG_B to the first motor 57A after the main control unit 4 determines.

Further, the control unit 56 determines that the input of the clock signal is stopped when the clock signal SIG_CLK output from the main control unit 4 continues to be at a high level or a low level for a predetermined time or more. When it is determined that the input of the clock signal is stopped, the control unit 56 switches each unit included in the first pointer drive motor unit 5B so as to enter the power saving mode (sleep mode). Note that the control unit 56 controls to return from the power saving mode when the clock signal SIG_CLK repeats a high level and a low level.
That is, the main control unit 4 can switch the first pointer driving motor unit 5B to the power saving mode by stopping the clock signal supplied to the control unit 56.

Next, an example of processing of the control unit 56 will be described.
FIG. 17 is a flowchart illustrating an example of a processing flow of the control unit 56 in the present embodiment. The processing of this flowchart may be repeatedly performed at a cycle of 1 Hz, for example.
First, the control unit 56 detects the level of each command signal from the first port terminal 52a to the sixth port terminal 52f (step S500).
Subsequently, the control unit 56 compares the detected signal level of each port terminal with a predetermined threshold value, and determines whether or not the instruction signal output from the main control unit 4 has changed according to the comparison result ( Step S501).

When it is determined that the instruction signal output from the main control unit 4 has not changed (step S501; NO), the control unit 56 returns the process to step S500.
When it is determined that the instruction signal output from the main control unit 4 has changed (step S501; YES), the control unit 56 stores the table stored in the storage unit 55 for the motor corresponding to the port terminal whose level has changed. A drive signal is generated with reference to the reference. Subsequently, the control unit 56 refers to the table stored in the storage unit 55 and outputs the drive signal generated to the motor corresponding to the port terminal (step S502).

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.
Various uses can be changed. For example, from a BLE transceiver mounted on a vehicle driven by an internal combustion engine, a motor, etc., a smart watch (electronic device) worn by a driver or the like receives vehicle speed information, rotation speed information, fuel remaining amount information, etc. Commands for displaying the vehicle speed, the number of revolutions, the remaining fuel amount, and the like can be transmitted from the smart watch microcomputer (main control unit) to the drive IC (control unit) of the pointer driving motor unit. As a result, the pointer of the pointer driving motor unit can display vehicle speed information and the like. In addition, a pointer driving motor unit can be directly mounted on an in-vehicle instrument display unit (inside the instrument panel or the like).

DESCRIPTION OF SYMBOLS 1, 1A, 1B ... Electronic device, 2 ... Oscillator circuit, 3 ... Operation part, 4 ... Main control part 5, 5A, 5B ... 1st pointer drive motor unit, 6 ... 2nd pointer drive motor unit, 7 3rd pointer drive motor unit, 8 ... additional unit, 10 ... communication unit, 20 ... terminal, 51, 51B ... support, 52 ... input unit, 53 ... output unit, 54 ... oscillation circuit, 55 ... storage unit, 56: Control unit, 57, 57A ... First motor, 57B ... Second motor, 57C ... Third motor, 58, 58A ... First pointer, 58B ... Second pointer, 58C ... Third pointer , 61 ... support, 62 ... input section, 67 ... third motor, 68 ... third pointer, 71 ... support, 72 ... input section, 77 ... fourth motor, 78 ... fourth pointer, 81 ... support, 82 ... input unit, 89 ... notification unit

Claims (7)

A support;
A stepping motor for rotating a pointer supported rotatably with respect to the support;
A first input unit to which a first command signal is input from a main control unit connected to the support from the outside of the support, and a second input to which a second command signal is input from the main control unit A plurality of input units including an input unit;
Based on the result of comparing the first command signal input to the first input unit with a predetermined threshold, provided on the support, a first drive signal for driving the pointer in a first operation A second drive signal that is output to the stepping motor and that drives the pointer in a second operation based on a result of comparing the second command signal input to the second input unit with a predetermined threshold value. A controller for outputting to the stepping motor;
A pointer drive motor unit comprising: A correspondence table indicating a correspondence relationship including a correspondence relationship between the first input unit and the first drive signal and a correspondence relationship between the second input unit and the second drive signal is stored. A storage unit;
The pointer driving motor unit according to claim 1. The stepping motor includes a first stepping motor that rotates a first pointer and a second stepping motor that rotates a second pointer,
The control unit sends the first drive signal to the first stepping motor and the second stepping motor based on a pulse mode of the first command signal input to the first input unit. Output to either or both of
Based on the pulse form of the second command signal input to the second input unit, the second drive signal is supplied to one of the first stepping motor and the second stepping motor or Output to both sides,
The pointer driving motor unit according to claim 1 or 2. The input unit includes a third input unit to which a third command signal is input from the main control unit, and a fourth input unit to which a fourth command signal is input from the main control unit,
The stepping motor includes a first stepping motor that rotates a first pointer, and a second stepping motor that rotates a second pointer,
The control unit outputs the first driving signal for causing the first stepping motor to rotate forward in response to a pulse of the first command signal input to the first input unit. And outputting the second drive signal for reversing the first stepping motor to the first stepping motor in response to the pulse of the second command signal input to the second input unit. In response to the pulse of the third command signal input to the third input unit, the third drive signal for causing the second stepping motor to rotate forward is output to the second stepping motor. Outputting the fourth drive signal for reversing the second stepping motor to the second stepping motor in response to the pulse of the fourth command signal input to the fourth input unit;
The storage unit stores a correspondence relationship including a correspondence relationship between the third input portion and the third drive signal and a correspondence relationship between the fourth input portion and the fourth drive signal. ,
The pointer driving motor unit according to claim 1 or 2. The aspect of the pulse includes any one or a combination of a pulse amplitude, a pulse width, a duty ratio, a frequency, and the number of pulses.
The pointer driving motor unit according to claim 3 or 4. The pointer drive motor unit according to any one of claims 1 to 5,
A base on which the main control unit is disposed;
A connection unit that connects the main control unit and each of the plurality of input units;
A mounting portion that can be mounted on a user;
The time as a clock can be indicated by the hands.
Multifunctional electronic equipment. A first command signal is input from a support, a stepping motor that rotates a pointer that is rotatably supported by the support, and a main control unit that is connected to the support from the outside of the support. A pointer driving motor comprising a plurality of input units including a first input unit, a second input unit to which a second command signal is input from the main control unit, and a control unit provided on the support body A unit control method,
Based on a result of the control unit comparing the first command signal input to the first input unit with a predetermined threshold, a first drive signal for driving the pointer in a first operation is the stepping. Based on a result of comparing the second command signal input to the second input unit with a predetermined threshold value that is output to the motor, a second drive signal that drives the pointer in a second operation is the stepping Output to the motor,
How to control the pointer drive motor unit.

Images