Timepiece Motor Control Unit with Instruction Confirmation Circuit
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Solution Overview
Problem
Existing timepieces with integrated motor, train wheel, and dial modules face challenges in accurately recognizing and controlling the drive state of motors, especially when multiple motors are involved, leading to difficulties in reflecting motor success or failure in driving control signals.
Innovation Solution
A timepiece design that includes a motor control unit with a motor drive state determination circuit and an instruction confirmation circuit, allowing the control unit to receive instruction confirmation signals to determine the drive state of motors, enabling accurate recognition and control of motor states even when the control unit and motor are separated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single phase stepping motor is driven using pulse control with different signal cycles for normal and reverse rotation, then the motor can be controlled to rotate in both directions, but the control unit cannot recognize the drive state of the motor, leading to inability to determine whether the motor succeeds or fails in driving
Solution Approach 1:
The patent introduces a feedback mechanism where the motor control unit sends instruction signals to the motor and receives instruction confirmation signals in return. The control unit determines the drive state by comparing the instruction signal with the confirmation signal, enabling real-time recognition of motor drive status and failure detection.
Solution Approach 2:
The patent introduces an instruction confirmation circuit as an intermediary between the motor control unit and the motor. This circuit generates confirmation signals that mediate the communication between the control unit and motor, enabling the control unit to indirectly detect the motor's drive state through the confirmation signal.
2Productivity
If multiple motors are driven simultaneously, then the timepiece can operate multiple indicating hands, but the control unit cannot recognize which specific motor succeeds or fails in driving
Solution Approach 1:
The patent segments the control system by providing separate instruction confirmation circuits for each motor. Each circuit independently generates confirmation signals for its associated motor, allowing the control unit to individually track the drive state of each motor even when multiple motors operate simultaneously.
Solution Approach 2:
The patent implements individual feedback channels for each motor through separate instruction confirmation circuits. Each circuit provides dedicated confirmation signals that enable the control unit to precisely identify which specific motor is driving or has failed, maintaining measurement precision across multiple motors.
3Ease of manufacture
If the control unit and motor are separated into different modules, then the timepiece structure becomes more modular and maintainable, but the control unit cannot directly detect the motor drive state
Solution Approach 1:
The patent introduces an instruction confirmation circuit as an intermediary component that bridges the separated control unit and motor modules. This intermediary generates and transmits confirmation signals across the module boundary, enabling the control unit to detect motor drive state despite the physical separation and modular structure.
Solution Approach 2:
The patent establishes a feedback communication channel between the separated modules. The instruction confirmation circuit in the motor module sends confirmation signals back to the control unit module, allowing the control unit to remotely detect motor drive state maintenance the modular structure's advantages.
Data Source
AI summary
A timepiece includes a motor control unit driving a motor for driving an indicating hand, based on an instruction signal, and a control unit receiving an instruction confirmation signal corresponding to a drive state of the motor in response to the instruction signal from the motor control unit, and determining whether or not the motor is driven in accordance with the instruction signal, based on the instruction confirmation signal.