Phased Array Vehicle Radar Switching for Urgent Data Transmission
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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 urgent data is not transmitted in real-time, particularly for autonomous vehicles relying on radar antennas for object detection and communication.
Innovation Solution
Implementing a method to switch between object detection and data transfer modes for radar antennas, allowing for simultaneous object detection and data transmission using phased array antennas, and prioritizing urgent data transmission, such as vehicle vitals and safety-critical information, while using wireless millimeter-wave communication networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If radar antenna transmits data in large batches while vehicle is not in operation, then data transmission efficiency is improved, but data transmission timeliness deteriorates
Solution Approach 1:
The radar antenna alternates between object detection mode and data transfer mode in periodic intervals. During object detection mode, the antenna performs radar scanning to detect objects. During data transfer mode, the antenna transmits accumulated data to the server. This periodic switching allows the system to achieve both timely data transmission and efficient batch processing.
Solution Approach 2:
The system dynamically adjusts the switching between object detection and data transfer modes based on operational conditions. When the vehicle is in operation, the radar antenna prioritizes object detection. When the vehicle is stationary or in low-activity states, the system increases data transfer operations. This dynamic adaptation resolves the contradiction between transmission efficiency and timeliness.
2Reliability
If radar antenna focuses on object detection during vehicle operation, then object detection capability is maintained, but data transmission is delayed
Solution Approach 1:
The radar antenna implements periodic switching between object detection mode and data transfer mode. During object detection mode, full attention is given to radar scanning and object identification. During data transfer mode, the antenna transmits accumulated sensor data, imaging data, and vehicle status information to the server. This periodic alternation ensures that object detection capability is maintained while enabling timely data transmission.
Solution Approach 2:
The system maintains continuous operation by switching between two useful actions: object detection and data transfer. Rather than stopping object detection to perform data transfer, the system continuously alternates between these two functions, ensuring that both object detection capability and data transmission occur without interruption to overall system operation.
3Loss of time
If radar antenna transmits urgent data in real-time, then data transmission timeliness is improved, but object detection capability may be compromised
Solution Approach 1:
The system uses periodic switching between object detection mode and data transfer mode. When urgent data needs transmission, the radar antenna switches to data transfer mode to send the urgent information to the server in real-time. After completing the urgent transmission, the system returns to object detection mode to restore full detection capability. This periodic switching enables timely urgent data transmission while preserving object detection capability.
Solution Approach 2:
The system dynamically adjusts its operational mode based on urgency levels. When urgent data is detected (such as safety-critical information), the system dynamically switches to prioritize data transmission. When no urgent data is present, the system dynamically returns to focusing on object detection. This dynamic response allows the system to handle urgent transmissions without permanently compromising detection capability.
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 real-time transmission of critical data, improving safety and operational efficiency by ensuring urgent information is communicated promptly, even during vehicle operation, without compromising 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.
Data Source
AI summary
In one embodiment, a method includes accessing an operational status of a vehicle that is coupled to a radar antenna array, accessing sensor data that includes a count of and a location of a plurality of objects within a vicinity of the vehicle, accessing signal strength data associated with one or more base station antennas located within the vicinity of the vehicle, and determining to switch at least some of a plurality of radar resources of the radar antenna array from an object detection mode to a data transfer mode. The determination is based on the operational status, the sensor data, or the signal strength data.