Vehicle Identification Using Modulated Radar, LIDAR, or Sound
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Solution Overview
Problem
Existing vehicle identification systems rely on wireless communication, which cannot function in areas without a wireless communication service.
Innovation Solution
A vehicle and infrastructure device system that uses electromagnetic waves or sound waves, modulated to carry identification codes, for identification without wireless communication, utilizing existing distance measuring sensors like radar, LIDAR, and sonar.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless communication is used for vehicle identification, then identification can be performed conveniently, but the system cannot function in areas without wireless communication service
Solution Approach 1:
The patent replaces wireless communication (electromagnetic signal-based) with acoustic wave-based identification using sound waves. The vehicle's speaker outputs sound waves modulated with identification codes, and the infrastructure device's microphone receives and decodes these sound waves, enabling identification in areas without wireless communication coverage.
Solution Approach 2:
The patent introduces sound waves as an intermediary medium for identification between the vehicle and infrastructure device. Instead of direct wireless communication, the identification code is transmitted through acoustic waves that can propagate in environments where wireless signals cannot reach.
2Reliability
If electromagnetic waves are used for identification, then identification can occur without wireless communication, but the system requires additional output and receiving devices
Solution Approach 1:
The patent makes the vehicle's existing speaker and microphone serve dual functions: the speaker not only emits sound for audio output but also encodes and transmits identification codes via sound waves; the microphone not only captures audio but also receives and decodes identification signals. This eliminates the need for dedicated identification hardware.
Solution Approach 2:
The vehicle utilizes its own existing audio output and receiving components to perform identification without requiring separate dedicated devices. The speaker and microphone are repurposed to handle identification tasks, making the system self-sufficient and reducing overall device complexity.
3Reliability
If sound waves are used for identification, then the system can function without wireless communication, but electromagnetic waves may cause glare or annoyance in noisy environments
Solution Approach 1:
The patent substitutes electromagnetic wave-based identification with acoustic wave-based identification. Sound waves are used instead of electromagnetic waves, which eliminates the issue of electromagnetic glare and allows the system to function reliably in noisy environments where acoustic waves can be transmitted and received effectively.
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 vehicle and area identification without wireless communication, improving accuracy and reducing costs by using existing vehicle sensors, and preventing glare or annoyance in noisy environments.
Implementation Method 1
an output device configured to output an electromagnetic wave or a sound wave that is not for wireless communication
Implementation Method 2
The first device is configured to output the electromagnetic wave or the sound wave modulated to indicate an identification code of the first device
Implementation Method 3
a receiving device configured to receive the electromagnetic wave or the sound wave output from the output device of the first device
Implementation Method 4
a receiving device configured to receive the electromagnetic wave or the sound wave output from the output device
Implementation Method 5
The second device is configured to identify the first device based on the identification code indicated by the electromagnetic wave or the sound wave received via the receiving device
Data Source
AI summary
The identification system includes a vehicle and an infrastructure device installed in a predetermined area. A first device that is one of the vehicle and the infrastructure device includes an output device configured to output an electromagnetic wave or a sound wave that is not for wireless communication. The second device that is another of the vehicle and the infrastructure device, includes a receiving device configured to receive the electromagnetic wave or the sound wave output from the output device of the first device. The first device is configured to output the electromagnetic wave or the sound wave modulated to indicate an identification code of the first device from the output device. The second device is configured to identify the first device based on the identification code indicated by the electromagnetic wave or the sound wave received via the receiving device.