On-board Device Bluetooth Interface for External Data Integration
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Solution Overview
Problem
Existing on-board devices for vehicles lack flexibility in adding new data sources, limiting their capability to interface with external devices and expand their data acquisition capabilities.
Innovation Solution
The system incorporates an on-board device with a short-range Bluetooth communication interface that allows encrypted communication with external devices using advertising channels, enabling the integration of additional data sources without the need for prior pairing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If on-board devices use fixed data sources with pre-configured connections, then device reliability is improved, but adaptability deteriorates
Solution Approach 1:
The on-board device dynamically adjusts its data acquisition capabilities by enabling or disabling data sources based on pre-configured criteria. The device can transition between different operational states (e.g., normal operation, extended operation) and adaptively select which data sources to activate, thus maintaining reliability through controlled changes while improving adaptability to different scenarios.
Solution Approach 2:
The device performs preliminary configuration of data sources and their activation criteria before actual operation. Data sources are pre-registered with the device, and conditions for their activation are predetermined. This allows the device to quickly and reliably adapt to new data sources without requiring complex real-time configuration, thus resolving the contradiction between reliability and adaptability.
2Adaptability or versatility
If on-board devices integrate multiple external data sources, then adaptability is improved, but device complexity increases
Solution Approach 1:
The device segments the data acquisition system into independent data source modules, each with its own configuration and activation criteria. This modular approach allows multiple external data sources to be integrated without increasing overall system complexity, as each source can be managed independently. The device can selectively activate only the necessary segments based on operational needs.
Solution Approach 2:
The on-board device implements a universal data source interface that can accommodate multiple types of external data sources (sensors, communication devices, other on-board systems) through a common architecture. This multi-functional interface reduces device complexity by providing a standardized method for integrating diverse data sources, eliminating the need for separate integration logic for each source type.
3Adaptability or versatility
If on-board devices enable flexible data source addition, then adaptability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The device uses software-based data source configurations and virtual representations of data sources rather than requiring precise hardware configurations for each potential data source. The activation criteria and data source parameters are stored as software configurations, allowing flexible addition of new data sources without requiring precise manufacturing adjustments. This software copying approach enables adaptability while maintaining standard manufacturing tolerances.
Data Source
Figure 1~2
AI summary
On-board device (10) adapted and configured to acquire data relating to motion and/or driving parameters of a vehicle (1), comprising: at least one data source (13, 14) internal to the on¬ board device (10) adapted to provide in output a first data signal containing data correlated to motion and/or driving parameters of the vehicle; a data processing unit (11) operatively connected to the internal data source (13, 14) to receive and process said first data signal; a long-range radio communication interface (12) operatively connected to the data processing unit (11) to allow a data transmission on a telecommunications network between the data processing unit (11) and a remote processing centre (100); a first short-range Bluetooth radio communication interface (18) operatively connected to the data processing unit (11) to allow the on-board device (10) to receive at least one data signal from an external device (3), the external device comprising a data source (36) external to the on-board device (10) and a second short-range Bluetooth radio communication interface (38).