Vehicle Radar Simultaneous Object Detection and Data Transfer
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Solution Overview
Problem
Current vehicle systems transmit data in large batches while not in operation, which is inefficient and untimely, as it delays the transmission of urgent information, such as traffic data, and diverts resources from object detection during operation.
Innovation Solution
Implementing a method to switch between object detection and data transfer modes, allowing vehicles to transmit data opportunistically using phased array radar antennas, either by switching signaling resources or using a single modulated chirp signal for both object detection and data transfer, while determining the appropriateness based on ambient noise levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data is transmitted in large batches while the vehicle is not in operation, then data transfer efficiency is improved, but data timeliness deteriorates
Solution Approach 1:
The radar antenna dynamically switches between object detection mode and data transfer mode based on vehicle operational status. When the vehicle is stopped or in low-activity states, the system transitions to data transfer mode to efficiently transmit accumulated data, while maintaining object detection capability when the vehicle is in motion, thus resolving the contradiction between transfer efficiency and timeliness
Solution Approach 2:
The system changes operational parameters by adjusting the radar antenna's signaling resources between different modes. By modifying the transmission parameters and resource allocation based on real-time operational conditions, the system achieves both efficient batch transfer when appropriate and timely transmission when needed
2Productivity
If radar resources are allocated to data transfer during operation, then data transmission capability is improved, but object detection capability deteriorates
Solution Approach 1:
The system implements dynamic resource allocation where the radar antenna switches between object detection mode and data transfer mode based on real-time vehicle operational status. This dynamic switching ensures that object detection resources are preserved when the vehicle is active while enabling data transfer when appropriate, resolving the contradiction between transmission capability and detection reliability
Solution Approach 2:
The system employs periodic mode switching between object detection and data transfer based on operational cycles. During vehicle operation, object detection takes priority, while during idle periods, data transfer is performed periodically, maintaining both capabilities without permanent degradation
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
Enables timely and efficient transmission of critical data during vehicle operation, ensuring safety and reducing the risk of collisions by prioritizing data transfer based on operational status and environmental conditions, while maintaining effective object detection capabilities.
Implementation Method 1
The radar antennas may be phased array antennas. The vehicle may be able to steer the beam generated by the phased array antenna using a phase shifter to generate constructive interference in many different directions.
Implementation Method 2
Vehicles used for transporting people or goods may be equipped with one or more radar antennas to detect and estimate the shape of objects near the vehicle.
Data Source
AI summary
In one embodiment, a method includes providing instructions to broadcast a modulated radar chirp signal from a radar antenna of a vehicle. The modulated radar chirp signal includes data associated with the vehicle. The method includes receiving a first return signal whose waveform substantially matches the modulated chirp signal. The first return signal is the modulated radar chirp signal after reflecting off of an object in an environment surrounding the vehicle. The method includes calculating a location for the object using the first return signal, receiving, from a base station antenna, a second return signal that indicates the modulated chirp signal was received by the base station antenna, and providing instructions to establish a wireless communication session with the base station antenna.