On-Board Instrument Data Capture via Serial Bus Intermediary
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Solution Overview
Problem
Conventional train data collection systems face limitations due to small transmission capacity between monitoring central devices and on-board instruments, requiring dedicated interfaces and careful data selection, which complicates the collection and display of operating state data.
Innovation Solution
A data collection device that utilizes serial communication to collect data from on-board instruments without altering the existing vehicle information management system or adding interfaces to the instruments, allowing for comprehensive data collection by connecting between the vehicle information management device and the on-board instruments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If Ethernet communication or wireless communication is used between vehicle management device and on-board instrument, then data transmission capacity is improved, but system complexity increases due to requiring dedicated interfaces
Solution Approach 1:
The patent introduces a data collection device as an intermediary component that connects to the existing serial communication bus between the vehicle management device and on-board instruments. This mediator enables Ethernet or wireless communication capabilities without requiring modifications to the original instruments, thus improving data transmission capacity while avoiding increased system complexity.
Solution Approach 2:
The patent segments the data collection function by separating it from the on-board instruments themselves. Instead of equipping each instrument with dedicated Ethernet/wireless interfaces, the data collection device is introduced as a separate entity that interfaces with instruments through their existing serial ports and provides high-capacity communication channels to the vehicle management device.
2Device complexity
If serial communication is used between vehicle management device and on-board instrument, then system complexity is reduced, but data transmission capacity is limited
Solution Approach 1:
The patent adds another dimension to the communication architecture by introducing parallel communication paths. The serial communication bus maintains its simple, low-complexity connection for basic instrument communication, while the data collection device adds Ethernet or wireless communication dimensions that operate in parallel, enabling high-capacity data transmission without interfering with the simplicity of the original serial system.
3Adaptability or versatility
If dedicated interface is added to each on-board instrument for data collection, then data collection capability is improved, but device complexity increases
Solution Approach 1:
The data collection device serves as a universal interface that can collect data from multiple different types of on-board instruments simultaneously through their existing serial ports. This multi-functional device eliminates the need for each instrument to have dedicated data collection interfaces, thereby improving overall data collection capability while keeping individual instrument complexity low.
Data Source
AI summary
A data collection device that collects data transmitted by serial communication from an on-board instrument connectable to a vehicle information management device that collects data from the on-board instrument includes a data collection unit that collects data transmitted from the on-board instrument.