Bus Signal Conversion for CNC and Servo Interface Compatibility
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Solution Overview
Problem
The incompatibility of different bus interfaces in communication systems, such as between numerical control machine tools and servo drivers, leads to inefficient communication, requiring re-development of new interfaces, which is inefficient and costly.
Innovation Solution
A bus communication signal conversion method and device that acquires the interface type of one equipment end, receives and extracts working parameter values from output signals, and sends them to the other equipment end using a corresponding communication protocol, enabling effective communication without modifying existing interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different types of bus interfaces are used in communication systems, then device diversity and functionality are improved, but interface compatibility and communication effectiveness deteriorate
Solution Approach 1:
The patent introduces a signal conversion device as an intermediary component between devices with different bus interfaces (e.g., Profinet, EtherCAT, CANopen). This converter receives signals from one bus interface type, converts them according to predefined protocols, and transmits them to another bus interface type, thereby enabling communication between incompatible devices without modifying the original devices
Solution Approach 2:
The signal conversion device changes communication parameters (protocol type, data format, transmission rate) dynamically based on the detected interface types of connected devices. By adjusting these parameters, the system maintains compatibility across diverse bus interface standards while preserving communication effectiveness
2Reliability
If bus interface compatibility is improved through signal conversion, then communication effectiveness is improved, but device complexity increases
Solution Approach 1:
The patent isolates complexity within a dedicated signal conversion device rather than distributing it across all communicating devices. The converter handles protocol translation, parameter mapping, and interface adaptation centrally, keeping the original control devices and servo drivers simple and unchanged
Solution Approach 2:
The communication system is segmented into distinct functional modules: original control devices, signal conversion devices, and servo drivers. This segmentation allows the complexity of interface compatibility to be contained within the converter module while maintaining simplicity in the core control and execution devices
3Reliability
If new bus interfaces are re-developed to ensure compatibility, then communication effectiveness is improved, but development time and cost increase
Solution Approach 1:
The signal conversion device is designed with multi-functionality to support multiple bus interface types (Profinet, EtherCAT, CANopen, etc.) simultaneously. A single converter unit can handle various protocol combinations, eliminating the need to develop dedicated interface solutions for each device pair and significantly reducing development time and cost
Data Source
AI summary
The present application relates to a bus communication signal conversion method and device, a medium, and a numerical control machine tool control equipment. The bus communication signal conversion method comprises: acquiring an interface type of a bus interface of a first equipment end; receiving an output signal sent by a communication interface of a second equipment end; extracting a working parameter value of the second equipment end from the output signal; and sending the working parameter value of the second equipment end to the bus interface of the first equipment end according to a communication protocol corresponding to the interface type. The use of the present method can achieve signal conversion between different types of interfaces, thereby ensuring effectiveness of communication.