Integrated Radar Sensor Antenna for Vehicle-to-Vehicle Communication
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Solution Overview
Problem
Current radar sensor systems for vehicles face latency issues and high hardware complexity, leading to delayed warnings and increased collision risks in critical traffic situations, and existing solutions are costly and inefficient in data transmission.
Innovation Solution
Combining radar sensors with vehicle-to-vehicle communication functionality in a single device using the same antenna arrangement, allowing for real-time data transmission and processing, reducing latency and hardware complexity, and enabling directional communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radar sensor systems use separate dedicated communication devices for vehicle-to-vehicle communication, then communication reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent combines the radar sensor and communication device into a single integrated unit. The radar antenna serves dual purposes: detecting radar signals for collision avoidance and transmitting/receiving communication signals for vehicle-to-vehicle data exchange. This merging eliminates the need for separate dedicated communication hardware, reducing device complexity and cost while maintaining communication reliability through the unified control device that manages both functions.
Solution Approach 2:
The radar antenna is designed with universal functionality to handle both radar signal detection and communication signal transmission/reception. The control device implements multi-functionality by processing both radar data for collision risk assessment and communication data for vehicle-to-vehicle messaging. This universal approach allows a single device to perform multiple functions that were previously requiring separate dedicated components.
2Reliability
If radar sensors transmit hazard information through the vehicle's bus system to external communication devices, then communication functionality is improved, but transmission time and latency increase
Solution Approach 1:
By merging the communication device with the radar sensor, the patent eliminates the intermediate step of routing communication data through the vehicle's bus system. The control device within the integrated unit can directly process radar-detected hazard information and immediately transmit it via communication signals without the time delay associated with bus system traversal and external device processing.
Solution Approach 2:
The integrated control device performs preliminary processing of hazard information directly at the radar sensor location before transmission. This preliminary action allows the system to prepare communication messages in advance based on radar detection data, reducing the overall transmission time when hazard information needs to be communicated to other vehicles.
3Adaptability or versatility
If separate communication devices are used for vehicle-to-vehicle communication, then communication capability is improved, but cost and hardware expenditure increase
Solution Approach 1:
The patent merges communication functionality into the existing radar sensor unit, eliminating the need for separate communication device hardware. This consolidation reduces component count, manufacturing complexity, and overall system cost while maintaining full communication capability through the multi-functional control device that handles both radar and communication operations.
Solution Approach 2:
The integrated radar-communication unit achieves versatility through multi-functionality. The same hardware components (antenna, control device) serve dual purposes: radar signal processing for collision avoidance and communication signal processing for vehicle-to-vehicle data exchange. This universal design provides full communication capability without the additional cost of dedicated separate communication devices.
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
This solution enables real-time warning and intervention for endangered road users, significantly reducing collision probabilities by integrating radar and communication functions within a single device, enhancing safety and reducing costs.
Implementation Method 1
at least one antenna arrangement (2) for transmitting and receiving radar signals
Implementation Method 2
radar signals are emitted and reflected radar signals are received again
Implementation Method 3
by considering frequency and phase differences to detect other objects in the detection range of the radar sensor and their speed
Data Source
Figure 1
Figure 2~4
AI summary
Radar sensor (1) for a motor vehicle (21), comprising at least an antenna arrangement (2) for transmitting and receiving radar signals and a control device (3) designed for controlling the operation of the antenna arrangement (2) and for evaluating the received radar signals, wherein the antenna arrangement (2) can also be operated by the control device (3) for transmitting and/or receiving messages in the context of motor vehicle-to-motor vehicle communication.