Radar Data Preprocessing Storage for Vehicle Bandwidth Bottlenecks
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Solution Overview
Problem
As autonomous driving technology advances, there is a need for high-bandwidth communication systems to process the increasing amount of data from various sensors, such as cameras, LIDAR, and RADAR, to accurately detect and respond to environmental objects.
Innovation Solution
A vehicle storage device and sensor system that includes a RADAR sensor to transmit and receive signals, a storage device to preprocess the raw data, and a central controller to obtain information on objects, enabling efficient data processing and vehicle control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-bandwidth sensors are applied to increase autonomous driving capability, then measurement precision and object detection accuracy are improved, but data processing complexity and communication bandwidth requirements increase
Solution Approach 1:
The patent segments the data processing function by introducing a dedicated radar pre-processor that separates raw radar data processing from the main central controller. The pre-processor performs initial processing tasks including range FFT, velocity FFT, and angle FFT operations, dividing the complex processing workload into manageable stages and reducing the burden on the central controller.
Solution Approach 2:
The patent introduces a radar pre-processor as an intermediary component between the radar sensor and the central controller. This intermediate device handles the computationally intensive preprocessing tasks, acting as a mediator that transforms raw radar data into processed radar data before transmission to the central controller, thereby reducing communication bandwidth requirements and processing complexity at the central controller level.
2Quantity of substance
If pre-processing operations are performed on raw radar data, then communication bandwidth requirements are reduced, but additional processing time and computational resources are required
Solution Approach 1:
The patent applies preliminary action by performing radar data preprocessing operations before the data is transmitted to the central controller. The pre-processor executes range FFT, velocity FFT, and angle FFT operations in advance, converting raw radar data into processed radar data that contains extracted features. This preliminary processing reduces the amount of data that needs to be transmitted, thereby reducing communication bandwidth requirements while the processing is distributed to avoid central bottlenecks.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed solution effectively processes high-bandwidth data from RADAR sensors, enhancing the accuracy and reliability of object detection and vehicle control, thereby improving safety and convenience in autonomous driving systems.
Implementation Method 1
at least one RADAR sensor configured to transmit a first signal to an object, and to generate first data based on a second signal reflected back from the object outside a vehicle
Data Source
AI summary
A vehicle storage device according to at least one embodiment includes: a first interface configured to transmit a first signal to an object, and to receive first data generated by analog to digital converting a second signal reflected and returned to the object outside a vehicle; a radar pre-processor configured to generate second data by performing a pre-processing operation on the first data; a second interface configured to output the second data; and a non-volatile memory configured to store the first data.