Vehicle Sensor Fusion Buffering for Bandwidth-Efficient Data Integration
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Solution Overview
Problem
Existing sensor fusion technologies face inefficiencies in processing and transmitting sensor data due to inconsistent organization and high bandwidth requirements, making it difficult to manage and integrate data from multiple sensors in vehicles effectively.
Innovation Solution
A sensor fusion device with a data input unit, data integration unit, and main control unit that manages sensor data through input and output buffers, prioritizes data transmission based on thresholds, and operates in modes such as identical sensor, identical time, and adaptive modes to efficiently integrate and process sensor data, including adding time stamps and managing data traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sensor data are transmitted to a data processing unit as it is without integration, then the data processing can be performed, but the bandwidth of the communication line needs to be increased
Solution Approach 1:
The patent merges multiple sensor data streams into integrated data packets before transmission. The data integration unit combines data from multiple sensors (camera, radar, ultrasonic, IMU, GPS) into unified data structures, reducing the total volume of data transmitted over communication lines while maintaining all necessary information for processing.
Solution Approach 2:
The patent performs data integration and organization before transmission to the data processing unit. By pre-integrating sensor data, adding time stamps, and organizing data structures in advance, the system reduces communication bandwidth requirements and prepares data in a ready-to-process format, improving overall system efficiency.
2Ease of operation
If sensor data are not consistently organized, then the data can be transmitted, but it is difficult to efficiently process the sensor data
Solution Approach 1:
The patent segments sensor data into distinct, organized categories with specific data structures for each sensor type. The data integration unit creates standardized data packets with clear formatting, time stamps, and metadata, making the data easier to transmit while simultaneously improving processing efficiency through consistent organization.
Solution Approach 2:
The patent transforms raw sensor data into standardized parameters with consistent formatting, time stamps, and data structures. By changing the organizational parameters of the data (adding time information, structuring data packets, standardizing formats), the system makes data both easier to transmit and more efficient to process.
3Adaptability or versatility
If multiple sensors are provided in the vehicle, then more comprehensive data can be collected, but the complexity of integrating and transmitting the sensor data increases
Solution Approach 1:
The patent implements a universal data integration architecture that handles multiple sensor types (camera, radar, ultrasonic, IMU, GPS) through a single integrated data integration unit. This multi-functional approach consolidates what would otherwise be separate integration processes, reducing overall system complexity while maintaining comprehensive sensor coverage.
Solution Approach 2:
The patent introduces a data integration unit as an intermediary between multiple sensors and the data processing unit. This intermediary component standardizes and organizes data from various sensor sources, simplifying the integration process and reducing the complexity that would otherwise exist in directly connecting and managing multiple sensor data streams.
Data Source
AI summary
A sensor fusion device for a vehicle integrates and provides a plurality of sensor data provided in the vehicle. The sensor fusion device includes: a data input unit configured to receive sensor data of a plurality of sensors through a sensor interface and provided with a data input buffer to manage input traffic of the sensor data; a data integration unit configured to produce integrated sensor data by integrating the sensor data and provided with an output buffer to integrate the integrated sensor data; a memory configured to provide a storage space for operating the data input unit and the data integration unit; and a main control unit configured to control operations of the data input unit and the data integration unit.