Phased-Array Vehicle Radar Switching for Detection and Urgent Data Transfer
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Solution Overview
Problem
Current vehicle systems transmit data in large batches when not in operation, which is inefficient and untimely, particularly for urgent data that should be transmitted in real-time, such as traffic information, vehicle vitals, and sensor data.
Innovation Solution
Implementing a method for vehicles to switch between object detection and data transfer modes using phased array radar antennas, allowing for simultaneous object detection and data transmission, and prioritizing urgent data transmission using wireless millimeter-wave communication networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the radar antenna is used for object detection continuously, then the detection reliability is maintained, but the data transmission timeliness deteriorates
Solution Approach 1:
The radar antenna dynamically switches between object detection mode and data transfer mode based on real-time conditions. The system determines when to switch modes by evaluating factors such as vehicle speed, distance to nearest object, and data urgency, allowing the antenna to adapt its function dynamically rather than being fixed in one mode.
Solution Approach 2:
The system implements periodic switching between detection and transfer modes. During object detection mode, the antenna gathers data; during data transfer mode, it transmits accumulated data. This periodic alternation ensures both detection continuity and data transmission timeliness.
2Productivity
If the radar antenna switches to data transfer mode, then the data transmission efficiency is improved, but the object detection capability deteriorates
Solution Approach 1:
The system allows partial switching to data transfer mode rather than complete switching. It can transfer data in bursts or partial sessions when conditions permit, rather than dedicating the antenna fully to data transfer, thus maintaining some level of detection capability while improving transmission efficiency.
Solution Approach 2:
The system continuously monitors the environment and adjusts its mode switching decisions based on feedback from sensors and system state. If objects are detected or conditions change during data transfer mode, the system receives feedback to switch back to detection mode, ensuring detection capability is maintained when needed.
3Use of energy by moving object
If data is transmitted in large batches when the vehicle is not in operation, then the transmission energy consumption is reduced, but the information timeliness deteriorates
Solution Approach 1:
The system performs preliminary data buffering and preparation during object detection mode, accumulating data ready for transmission. When data transfer mode is activated, this pre-prepared data can be transmitted quickly, reducing both energy consumption and transmission time compared to starting transmission from scratch.
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, ensuring safety and operational efficiency by diverting radar resources for data transfer only when safe to do so, and utilizing wireless millimeter-wave communication for real-time data exchange.
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.
Data Source
AI summary
In one embodiment, a method includes determining an operational status of a vehicle including a radar antenna. The operational status is related to autonomous-driving operations of the vehicle in an environment. The method includes determining an expected amount of signaling resources associated with the radar antenna to be utilized by the vehicle while the vehicle performs the autonomous-driving operations, based at least on the operational status of the vehicle and the environment. The method includes determining to switch one or more of the signaling resources associated with the radar antenna from a first mode to a second mode based on the expected amount of signaling resources to be utilized by the radar antenna while the vehicle performs the autonomous-driving operations. The method includes causing the one or more of the signaling resources associated with the radar antenna to switch from the first mode to the second mode.