Industrial Communication Frame Slots for Fast Sub-Data Cycles
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Solution Overview
Problem
Existing communication devices struggle to periodically transmit, receive, or transfer sub-data at a cycle shorter than the time required for transmitting main data, making it difficult to maintain efficient communication in industrial networks where real-time punctuality and response speed are critical.
Innovation Solution
A communication device and system that include a processor and communication part, which transmit main data in a first period and set multiple second periods within that first period to allocate slots for sub-data communication, allowing sub-data to be transmitted, received, or transferred separately and periodically, even if the cycle is shorter than the main data transmission time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the communication device transmits main data in a single communication band, then the main data transmission is reliable and controlled, but the sub-data cannot be periodically transmitted at a cycle shorter than the main data transmission time
Solution Approach 1:
The communication device segments the communication band into multiple slots within a single period. Each slot can independently transmit sub-data at different cycles, while the main data transmission occupies the entire period. This segmentation allows sub-data to be transmitted at cycles shorter than the main data transmission time without requiring additional communication bands.
2Speed
If the communication device uses a single period for main data transmission, then the communication structure is simple, but it is difficult to periodically transmit sub-data at a period shorter than the main data transmission period
Solution Approach 1:
The invention introduces a nested time dimension by placing multiple sub-periods within the main data transmission period. Each sub-period contains slots for sub-data transmission, creating a hierarchical time structure where sub-data can be transmitted at shorter cycles while the main data transmission maintains its original period. This dimensional nesting resolves the contradiction between simple structure and short transmission cycles.
Data Source
AI summary
A communication device includes a processor and a communication part. The communication part communicates with one or more slaves. The processor has a function of executing communication processing and setting processing. The communication processing includes causing the communication part to transmit a frame including main data to the one or more slaves in a first period. The setting processing includes setting N (N is an integer of 2 or more) second periods within the first period. The setting processing includes setting a slot for performing communication of sub-data other than the main data for each of the second periods. The frame includes at least one of the slots during a transmission period of the main data.