Onboard Network ID Allocation Using Unique ID Request Frames
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Solution Overview
Problem
Existing methods for allocating identification information to onboard apparatuses in onboard networks face inefficiencies, particularly when multiple apparatuses request identification simultaneously, leading to increased time requirements and potential duplication of identification numbers.
Innovation Solution
A method and system where a management apparatus receives request frames from onboard apparatuses, generates and transmits response frames with allocated identification information, ensuring uniqueness and efficiency in allocation, even during simultaneous requests, using a data structure that includes an ID region for common identification and a data region for unique IDs and request counts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple onboard apparatuses simultaneously request identification numbers using existing methods, then the identification allocation process becomes more complex, but the time required for allocation increases significantly and duplication occurs
Solution Approach 1:
The management apparatus maintains a pre-prepared pool of identification numbers and performs allocation checks before final assignment. When multiple apparatuses request IDs simultaneously, the management apparatus can quickly determine availability from the pre-prepared pool and allocate unique IDs without iterative reassignment, reducing time while ensuring uniqueness.
Solution Approach 2:
The management apparatus acts as an intermediary between multiple onboard apparatuses requesting identification numbers. It receives simultaneous requests, manages the identification pool centrally, and distributes unique IDs to each requesting apparatus, preventing duplication while handling multiple requests efficiently without requiring repeated negotiation rounds.
2Productivity
If the same identification number is allocated to multiple onboard apparatuses, then the allocation process becomes faster, but identification uniqueness is compromised causing communication conflicts
Solution Approach 1:
The management apparatus implements a feedback mechanism where it monitors the pool of available identification numbers and tracks allocations in real-time. When an ID is requested, the system immediately checks availability and provides feedback on whether the ID can be allocated, ensuring uniqueness is maintained while enabling fast single-pass allocation without conflicts.
Solution Approach 2:
The management apparatus automatically manages the identification number pool without requiring manual intervention or complex negotiation between apparatuses. The system self-service allocates unique IDs from the pre-prepared pool based on simple availability checks, achieving both speed and uniqueness through automated, conflict-free distribution.
Data Source
AI summary
Provided is a management apparatus that assigns identification information to an onboard apparatus connected to an onboard network including a reception unit configured to receive, from an onboard apparatus, a request frame with identification information assigned including a unique ID for the onboard apparatus; a generation unit configured to generate a response frame including identification information allocated to the request frame received by the reception unit; and a transmission unit configured to transmit the response frame generated by the generation unit to the onboard apparatus which is a transmission source of the request frame.