Motor Control Apparatus Automatic Encoder Identification
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Solution Overview
Problem
The existing motor control systems face increased physical and processing costs due to the number of sensors and devices connected, particularly when real-time sensing is required.
Innovation Solution
A motor control apparatus that automatically acquires and stores identification information of position detectors and sensors in a non-volatile memory, reducing the need for extensive wiring and processing loads by managing communications and associations through a dedicated unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors and position detectors are connected to the motor control apparatus, then sensing capabilities and control precision are improved, but physical cost and processing load increase
Solution Approach 1:
The patent combines multiple position detectors and sensors into a single series connection topology under one communication interface. Instead of establishing separate communication paths for each device, the system merges them into a unified daisy-chain architecture where devices communicate sequentially through shared lines, reducing wiring complexity and processing overhead while maintaining individual device functionality and detection precision.
Solution Approach 2:
The motor control apparatus is designed with a universal communication interface that can handle multiple types of devices (position detectors and sensors) through a single standardized protocol. This multi-functional interface eliminates the need for device-specific communication hardware, reducing physical costs and simplifying the system architecture while supporting diverse sensing capabilities.
2Reliability
If each sensor is connected individually to the motor control apparatus, then sensing reliability is improved, but physical cost increases
Solution Approach 1:
Multiple sensing devices are merged into a single series communication chain, sharing common data lines and power connections. This topology reduces the quantity of wiring required compared to individual point-to-point connections, while the series architecture maintains reliable communication through sequential data transmission and includes error detection mechanisms to ensure sensing reliability.
3Ease of operation
If automatic acquisition of identification information is implemented, then ease of operation is improved, but processing cost increases
Solution Approach 1:
The system implements self-service automatic identification acquisition where the motor control apparatus autonomously retrieves identification information from each position detector and sensor during initialization. The devices provide their own identification data through the series communication interface without requiring external configuration tools or manual intervention, simplifying operation while the processing energy cost is minimized through efficient sequential reading and immediate storage in non-volatile memory.
Solution Approach 2:
Identification information is acquired preliminarily during system initialization before normal operation begins. The motor control apparatus automatically reads and stores all device identification data in advance, creating a ready-to-use configuration that eliminates the need for repeated configuration operations and reduces overall processing energy consumption during runtime.
Data Source
AI summary
A motor control apparatus (2) according to the present disclosure is configured to control motors (#1-#3), automatically acquire identification information of a plurality of encoders (#1-#5), the encoders (#1-#5) being configured to be connected in series under a control of the motor control apparatus (2) and to detect position information of the motors (#1-#3) or position information of a mechanical apparatus configured to be driven by the motors (#1-#3), and store the identification information and the motor control unit in a non-volatile memory (11) in association with each other.