DC Motor Control Apparatus for Game Machine Bidirectional Movement
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Solution Overview
Problem
Existing game machine control systems require excessive control commands to operate moving bodies back and forth, increasing processing load on the host control device and complicating motor arrangement due to the need for multiple stepping motors, which are costly and space-intensive.
Innovation Solution
A driving-device control apparatus that includes a communication unit and a control unit to receive control commands for a DC motor, allowing the moving body to operate back and forth with fewer commands by storing the present position and controlling the DC motor to travel between the present and destination positions using pulse width modulation, reducing the number of control signals needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If stepping motors are used to drive moving bodies back and forth, then precise position control is achieved, but the number of motors increases and space requirements increase
Solution Approach 1:
A single DC motor is used to drive multiple moving bodies (shutters and reels) back and forth, replacing the traditional approach of using separate stepping motors for each component. The DC motor controller manages bidirectional movement and positioning for different game elements, reducing the total motor count while maintaining control precision
Solution Approach 2:
The patent uses a rotation angle sensor to detect the position of the DC motor shaft and copy this information to determine the positions of connected moving bodies. This allows the system to track multiple components using a single sensor, reducing the need for multiple sensors and motors
2Adaptability or versatility
If multiple stepping motors are mounted to drive multiple moving bodies, then each moving body can be controlled independently, but the footprint and cost increase
Solution Approach 1:
The patent combines multiple motor functions into a single DC motor system. One DC motor drives both the shutter mechanism and the reel mechanism through shared mechanical components, allowing independent control of each moving body while using minimal space. The controller independently manages the movement of shutters and reels using a single motor's rotational output
Solution Approach 2:
The DC motor serves multiple functions: driving shutters open/closed, rotating reels, and enabling vibration effects. This multi-functional approach replaces what would traditionally require multiple specialized motors, reducing the overall footprint while maintaining independent control capability
3Measurement precision
If round-trip control commands are sent for each outbound and inbound movement, then precise destination positioning is achieved, but the processing load on the host control device increases
Solution Approach 1:
The controller pre-calculates the total round-trip distance and stores it in memory. When a round-trip command is received, the controller uses this pre-stored distance information to control the DC motor's bidirectional movement without requiring separate destination position calculations for each leg of the journey, reducing processing load while maintaining positioning accuracy
Solution Approach 2:
The rotation angle sensor provides continuous feedback on the DC motor shaft position, allowing the controller to monitor movement progress in real-time. This feedback mechanism enables the system to achieve precise destination positioning using a single round-trip command rather than multiple separate commands, as the controller can determine when the moving body has reached the destination based on the accumulated rotation angle
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
The solution enables efficient operation of moving bodies back and forth with fewer control commands, reducing processing load on the host control device and allowing for more complex and engaging game machine presentations with a smaller footprint, thereby increasing player interest.
Implementation Method 1
a driving device configured to drive a moving body... a DC motor
Implementation Method 2
a rotation angle sensor that outputs a detection signal every time the DC motor rotates a predetermined rotation angle
Implementation Method 3
controlling the DC motor to travel between the present and destination positions using pulse width modulation
Data Source
AI summary
In order to control driving a moving body back and forth a driving-device control apparatus including a communication unit and a control unit receives a control command from a host controller and controls a driving device to drive a moving body back and forth based on the control command. The communication unit receives the control command including a round-trip instruction for causing the moving body to operate back and forth from the host controller. The control unit controls the driving device to operate the moving body back and forth based on instructions in the control command when the control command includes the round-trip instruction.