Wireless Machine Control Buffering for Synchronized Control Cycles
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Solution Overview
Problem
Existing machine control systems face challenges in achieving precise synchronization and timing control due to fluctuations in wireless communication, making it difficult to execute machine commands and receive response information in predetermined control cycles.
Innovation Solution
A machine control system that buffers machine commands and response information until their respective use timings, utilizing a wired communication network for synchronization with control cycles, thereby stabilizing the timing of command execution and information reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication is used to transmit machine commands and response information, then device complexity is reduced and ease of operation is improved, but timing precision and synchronization reliability deteriorate due to communication fluctuations
Solution Approach 1:
The system performs preliminary actions by buffering machine commands and response information in advance of their scheduled use timing. The buffering unit stores commands and responses temporarily, allowing the system to compensate for wireless communication delays and ensure synchronized execution at predetermined control cycle timings.
Solution Approach 2:
The buffering unit acts as an intermediary between the wireless communication interface and the control execution units. It mediates the timing mismatch by decoupling the asynchronous wireless communication from the synchronous control cycle requirements, storing data until the appropriate execution timing is reached.
2Device complexity
If wireless communication is used for machine control, then device complexity is reduced, but synchronization reliability and control precision worsen due to communication timing fluctuations
Solution Approach 1:
The system buffers machine commands and response information in advance of their scheduled use timings. This preliminary buffering action allows the system to maintain synchronization reliability despite wireless communication fluctuations, as data is ready to be executed at the precise moment required by the control cycle.
Solution Approach 2:
The buffering unit serves as an intermediary that isolates the control system from wireless communication timing variations. It absorbs the variability in communication arrival times and ensures that commands and responses are delivered to the control units at the correct synchronized timings.
3Productivity
If machine commands are transmitted in real-time via wireless communication, then productivity is improved through faster response, but manufacturing precision deteriorates due to timing variations in control cycle execution
Solution Approach 1:
The buffering unit performs preliminary storage of machine commands and responses, allowing real-time wireless transmission to proceed at high speed while execution timing is precisely controlled. This separates the transmission speed (affecting productivity) from the execution timing (affecting manufacturing precision).
Solution Approach 2:
The buffering unit mediates between the high-speed wireless communication channel and the precision-critical control execution. It allows rapid data transmission while ensuring that commands are executed and responses are processed at the exact timings required for precise manufacturing control.
Data Source
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AI summary
The machine control system 1 includes: one or more machines 4 configured on a real space, each of the one or more machines 4 configured to execute motion according to a machine command; one or more controllers 100 implemented on a virtual space to control the one or more machines 4, respectively; communication server 3 configured to communicate with the one or more controllers 100 via a wired communication network 8, and to communicate with the one or more machines 4 via a wireless communication network 7.