Ethernet Address Frame Control for Multi-Node Initialization
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Solution Overview
Problem
In Ethernet communication systems with multiple node apparatuses, directly setting addresses for apparatuses in hard-to-reach locations like building walls or stadium ceilings is difficult, and 1:1 communication with each node increases communication time and complexity.
Innovation Solution
An electronic apparatus generates and transmits Ethernet frames with custom fields containing address codes and values to set addresses for multiple node apparatuses, using binary codes for initialization and setting, and verifies address integrity through feedback frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the master apparatus performs 1:1 communication with each node apparatus to set addresses, then the address setting can be performed for each node, but the number of communications increases according to the number of node apparatuses, leading to increased communication time
Solution Approach 1:
The patent combines multiple address setting operations into a single Ethernet frame by introducing a custom field that can carry address code and address value for multiple nodes. Instead of performing n separate 1:1 communications, the system transmits one frame containing consolidated address setting information for all nodes, thereby reducing the total number of communications and communication time while maintaining the ability to set addresses for each node individually
2Ease of operation
If the master apparatus performs 1:1 communication with each node apparatus, then address setting can be performed, but the communication complexity increases according to the number of node apparatuses
Solution Approach 1:
The patent merges multiple address setting operations into a single Ethernet frame structure. The custom field in the Ethernet frame contains both the address code and address value, allowing the master apparatus to set addresses for multiple nodes simultaneously through one communication operation rather than requiring multiple separate communications, thereby reducing communication complexity
3Manufacturing precision
If address values are updated for each node apparatus, then accurate address setting is achieved, but the communication time and complexity increase
Solution Approach 1:
The patent combines address value updates for multiple nodes into a single Ethernet frame transmission. The custom field structure allows the master apparatus to transmit address code and address value information for all nodes simultaneously, achieving accurate address setting for each node while reducing the total communication time compared to performing updates sequentially for each node
Data Source
AI summary
An electronic device including: a memory configured to store an address code; a communication interface configured to communicate with one or more node apparatuses among a plurality of node apparatuses by serial communication; and a processor configured to: obtain the address code and an address value corresponding to one node apparatus among the one or more node apparatuses, generate an Ethernet frame including a custom field based on the address code and the address value, and transmit the generated Ethernet frame to the one node apparatus through the communication interface, where the custom field includes: an address code area storing the address code and an address value area storing the address value, and the address code configured to set the address value of the one node apparatus.