Cyclic Data Frame Mapping for Single-Cycle Device Communication
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Solution Overview
Problem
Existing systems require multiple cycles to facilitate data communication between controlled devices due to the absence of direct communication functionality, necessitating intervention from a main control device and additional networks for data exchange.
Innovation Solution
A system enabling direct data communication between controlled devices without the need for additional networks, allowing data transfer in a single cycle by reconfiguring data frames to allow controlled devices to communicate directly with each other.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data communication between controlled devices is performed via the main control device, then system control is maintained, but the number of communication cycles increases and system responsiveness decreases
Solution Approach 1:
The patent segments communication paths by introducing a direct communication channel between controlled devices while maintaining the main control device's oversight role. This allows data to be transmitted directly between controlled devices without requiring full mediation through the main control device, thereby reducing communication cycles while preserving system control.
Solution Approach 2:
The patent introduces a communication conversion unit as an intermediary that enables direct data exchange between controlled devices. This intermediary component facilitates peer-to-peer communication while the main control device maintains overall system coordination, resolving the contradiction between direct communication efficiency and centralized control reliability.
2Speed
If direct communication between controlled devices is implemented, then communication speed increases, but system complexity increases due to additional networks
Solution Approach 1:
The patent makes the existing communication network multi-functional by enabling it to handle both main control device-to-controlled device communication and controlled device-to-controlled device direct communication. The communication conversion unit allows the same network infrastructure to serve multiple communication patterns, achieving direct communication without adding separate network hardware.
Solution Approach 2:
The patent creates a virtual communication path that copies the functionality of a separate direct communication network within the existing network framework. By using communication conversion units that translate and forward messages, the system achieves direct communication effects without duplicating physical network infrastructure.
Data Source
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AI summary
In a system, a plurality of controlled devices, including a first controlled device and a second controlled device, and a main control device configured to control the plurality of controlled devices are connected via a network. The main control device includes a communicator configured to transmit and receive a data frame including a plurality of data areas via the network in a predetermined cycle, and a setter configured to set a structure of the data frame. The setter has a function of setting the same data area in the data frame as a data area in which the first controlled device should write data and a data area from which the second controlled device should read data.