RDMA Data Aggregation for Low-Latency Camera Processing

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Solution Overview

Problem

Conventional systems for collecting and analyzing sensor data from multiple terminals are inflexible and require dedicated infrastructure for each specific purpose, making it difficult to provide various services without rebuilding the entire system.

Innovation Solution

A data processing system utilizing RDMA (Remote Direct Memory Access) technology for direct memory-to-memory data transfer between local and remote nodes, enabling efficient aggregation and processing of data from multiple terminals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional data collection systems are constructed for specific purposes with dedicated infrastructure, then the system can achieve reliable data processing for that specific purpose, but the system lacks adaptability to provide various different services

Engineering Contradiction:

Improveservice adaptabilityVSAvoidsystem complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal data collection system using RDMA technology that can serve multiple different purposes (congestion prediction, crime prevention, demand prediction, etc.) without requiring separate dedicated infrastructure for each service, thereby achieving multi-functionality and service adaptability

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Speed

If data is transferred using conventional network protocols through CPU processing, then the system can maintain compatibility with existing network infrastructure, but the CPU load increases and data transfer latency increases

Engineering Contradiction:

Improvedata transfer speedVSAvoidCPU load

Core Design Contradiction:

SpeedVSUse of energy by moving object

Solution Approach 1:

The patent replaces the conventional CPU-based data transfer mechanism with RDMA technology that enables direct memory-to-memory data transfer between devices, eliminating the need for CPU intervention in the data transfer path, thereby reducing CPU load and increasing transfer speed

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If conventional network interfaces are used for data aggregation from multiple terminals, then the system can maintain ease of operation with standard networking, but the data aggregation efficiency is insufficient for real-time processing

Engineering Contradiction:

Improvedata aggregation efficiencyVSAvoiddata transfer latency

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent substitutes conventional network interface card (NIC) operations with RDMA-capable network interfaces that enable direct memory access for data aggregation, bypassing the operating system kernel and CPU, thereby achieving high-speed real-time data collection from multiple terminals with minimal latency

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20250301046A1Data processing system, data processing method and storage medium

Publication Date: 2025.09.25 NIPPON TELEGRAPH & TELEPHONE CORP

AI summary

A data processing system includes a local arrogation node including first processing circuitry configured to aggerate data captured by a plurality of cameras, and a first remote direct memory access network interface card (RDMA NIC) configured to transmit the data to a remote node using RDMA. The data processing system includes the remote node including a second remote direct memory access network interface card (RDMA NIC), and second processing circuitry configured to perform predetermined processing on the data through the second RDMA NIC.