Connected Diagnostic System for Mobile Asset Data Retrieval
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Solution Overview
Problem
Existing data acquisition and recording systems in high value mobile assets require physical access and proprietary software to extract and analyze data after an incident, which is inefficient and often unavailable when the data recorder cannot be recovered.
Innovation Solution
A connected diagnostic system that enables real-time or near real-time data acquisition and recording, allowing data to be streamed to a remote data repository and accessed by users through a common web browser, eliminating the need for physical access and proprietary software.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is stored only on onboard data recorders requiring physical access, then data security and integrity are maintained, but data accessibility and retrieval speed deteriorate when the recorder cannot be recovered
Solution Approach 1:
The system performs preliminary actions by continuously transmitting data to a remote server during normal operations before any incident occurs. This ensures data is already available in the cloud, eliminating the need for physical recorder recovery and enabling immediate access to historical data when needed for incident investigation
Solution Approach 2:
The system creates and maintains copies of data in multiple locations: locally on the onboard recorder and remotely on external servers. This duplication ensures that if the onboard recorder is lost or damaged, complete data copies remain accessible remotely, resolving the contradiction between maintaining data integrity and ensuring rapid accessibility
2Productivity
If proprietary software is required to extract and analyze data, then data processing capability is enhanced, but system complexity and ease of operation deteriorate
Solution Approach 1:
The system employs a universal web-based interface that can be accessed through any standard web browser without requiring installation of proprietary software. This multi-functional approach allows diverse users with different devices to access and analyze data using familiar, universally available tools while maintaining sophisticated data processing capabilities on the server side
Solution Approach 2:
The system replaces the mechanical approach of local software installation and execution with a network-based web interface architecture. Data processing and analysis functions are moved to the remote server, accessible through standard web protocols, eliminating the need for users to install, configure, or maintain proprietary software while preserving advanced analytical capabilities
3Loss of time
If data is transmitted continuously to remote servers, then data accessibility is improved, but network bandwidth consumption and energy usage increase
Solution Approach 1:
The system implements periodic data transmission at predetermined time intervals rather than continuous streaming. This approach maintains data availability on remote servers for rapid access while significantly reducing network bandwidth consumption and energy usage compared to continuous transmission, as data is sent in discrete batches only when needed or at scheduled times
Solution Approach 2:
The system transmits data selectively based on operational conditions and incident detection rather than continuously transmitting all data. When no incidents are detected, transmission occurs periodically or only when data buffers reach thresholds. When incidents are detected, transmission intensity increases to ensure critical data is captured, optimizing the balance between data availability and resource consumption
Data Source
AI summary
A connected diagnostic system (CDS) for mobile assets that includes an onboard processing unit and a remote web-based platform that provides a remote view of an onboard display and/or Human Machine Interface (HMI) of the mobile asset. The onboard display and/or HMI can be the mobile asset's own onboard display or an onboard display can be included with the CDS. The onboard processing unit receives data from data sources onboard the mobile asset, such as onboard systems and onboard subsystems, and/or data sources remote from the mobile asset and displays the data on the onboard display, using wired communication channels, and on the remote web-based platform, using wireless communication channels. The onboard processing unit can also receive data from a data acquisition and recording system (DARS) for mobile assets that includes a data recorder.