Drive Motor Evaluation Using Encoder Feedback
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Solution Overview
Problem
Existing evaluation systems for drive motors in game machines face challenges in accurately assessing the rotational position and speed of drive motors, especially when they are incorporated within the game machine, making it difficult to perform effective endurance tests due to the limited accessibility of external measurement devices.
Innovation Solution
An evaluation system comprising a motor controller and a detector that can control and detect the rotational position and speed of the drive motor, allowing for evaluation operations to be performed internally within the game machine, with a command output unit and evaluation unit connected to an external device for communication and feedback control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a laser measurement device is used to measure rotational speed from the outside, then measurement can be performed, but the device cannot be used when the drive motor is hidden in the game machine
Solution Approach 1:
The patent introduces an encoder as an intermediary device attached to the drive motor shaft. The encoder generates pulse signals that are detected by a detector inside the game machine, serving as a mediator between the motor's rotational motion and the evaluation system. This resolves the contradiction by enabling measurement without external laser devices, as the encoder-transducer combination provides internal measurement capability.
Solution Approach 2:
The patent replaces the external optical measurement system (laser device) with an internal electrical measurement system (encoder and detector). The encoder converts mechanical rotation into electrical pulse signals, which are then detected and processed electronically. This substitution eliminates the need for external optical equipment while maintaining measurement capability.
2Adaptability or versatility
If the drive motor is incorporated in the accessory of the game machine, then the rendering effect is enhanced, but the laser measurement device cannot be used
Solution Approach 1:
The patent merges the measurement function with the drive motor by integrating an encoder directly on the motor shaft and a detector within the game machine. This combination creates a self-contained measurement system that works seamlessly with the integrated motor, resolving the contradiction between motor integration and measurement capability.
Solution Approach 2:
The encoder acts as an intermediary that bridges the gap between the integrated drive motor and the evaluation system. It converts the motor's rotational parameters into detectable electrical signals, enabling precise measurement while the motor remains integrated within the game machine's accessory.
3Ease of operation
If an encoder is attached to the DC motor for rotational position control, then control is achieved, but the motor becomes more complex
Solution Approach 1:
The patent makes the encoder serve multiple functions: it provides rotational position feedback for control, enables rotational speed measurement for evaluation, and generates pulse signals for the detector. This multi-functionality justifies the added complexity by delivering multiple benefits from a single component addition.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the effective evaluation of drive motors by controlling and detecting their rotational position and speed, even when the motor is hidden within the game machine, facilitating accurate performance assessments and operational feedback.
Implementation Method 1
a reflective tape 105 having a light-reflecting surface 105a facing the laser beam 201 is attached to the shaft 102d of the drive motor 102
Implementation Method 2
a rotational speed is measured with a laser measurement device
Data Source
AI summary
Disclosed are an evaluation system, an evaluation device, a game machine, and an evaluation method for being able to evaluate a drive motor that drives various movable bodies called an accessory attached to a game machine such as a pachinko game machine. The game machine includes an accessory mechanism and a motor control mechanism that controls the drive motor of the accessory mechanism. The evaluation device is connectable to the game machine. The motor control mechanism controls the drive motor by outputting a control signal based on input from the evaluation device, and the motor control mechanism outputs a rotational position and a rotational speed of the controlled drive motor and the control signal to the evaluation device. The evaluation device evaluates the drive motor based on the input rotational position, rotational speed, and control signal.