Motor Control System Encoder Merging and Universality
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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 encoders connected, especially when real-time sensing is required, leading to higher costs for wires and processing loads.
Innovation Solution
A motor control system is designed with multiple motor control apparatuses that manage encoders and sensors through a centralized communication management unit, using mapping tables to assign unique addresses and reduce the physical and processing costs by minimizing the number of wires and optimizing data transfer between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each sensor or peripheral device is connected to a motor control apparatus individually, then real-time sensing and control are achieved, but physical cost (wires) and processing cost increase
Solution Approach 1:
The patent merges multiple communication paths into a single shared communication path by connecting all encoders and sensors to the first motor control apparatus. This consolidation reduces the number of wires and interface units required, thereby lowering physical cost while maintaining real-time sensing capabilities through centralized data collection.
Solution Approach 2:
The first motor control apparatus is designed to serve multiple functions: it controls its own motor, manages encoders for all motors in the system, and handles sensor data from all peripheral devices. This multi-functional design eliminates the need for separate dedicated control apparatuses for each encoder or sensor, reducing overall system complexity and processing costs.
2Adaptability or versatility
If multiple encoders and sensors are connected through a network to a host controller, then system scalability is improved, but processing load and communication overhead increase
Solution Approach 1:
The patent extracts the encoder management function from individual motor control apparatuses and consolidates it into a single first motor control apparatus. This extraction reduces the processing load on each individual controller and minimizes communication overhead by having one centralized unit handle all encoder data instead of multiple separate communication channels.
Data Source
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Figure 3A~3B
AI summary
A motor control system (1) according to the present disclosure is includes: a plurality of motor control apparatuses (#1/#2), each being configured to control at least one of a plurality of motors (#1-#6); and a plurality of encoders (#1-#6) configured to detect position information of one motor corresponding to each of the encoders (#1-#6) among the plurality of motors (#1-#6). All of the plurality of encoders (#1-#6) are configured to be connected in series under a control of a motor control apparatus (#1). The motor control apparatus (#1) is configured to transfer the position information of the plurality of motors (#1-#6) read out from the encoders (#1-#6) to a motor control apparatus (#2).