Autonomous Valet Parking with Temporary Key Drive Plan Verification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional autonomous valet parking systems either require high-precision sensors and equipment on the parking lot side, increasing costs and complexity, or rely on vehicle-side sensors and control devices, which can compromise safety and efficiency.
Innovation Solution
An autonomous valet parking system where a terminal device, vehicle, and server device communicate to generate and verify temporary keys and drive plans, with the vehicle planning its route and the server verifying the plan's validity, reducing equipment burden on the parking lot and enhancing safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-precision sensors and equipment are installed on the parking lot side, then measurement precision and reliability are improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces the mechanical sensor-based detection system on the parking lot side with an information processing system that uses temporary keys and drive plan verification. Instead of using physical sensors to detect vehicle presence and status, the system uses digital authentication mechanisms (temporary keys generated by terminal devices) and logical verification (server verifying drive plans) to achieve the same safety and control objectives, thereby eliminating complex hardware while maintaining or improving precision through cryptographic verification
Solution Approach 2:
The patent introduces temporary keys as an intermediary element between the terminal device and the vehicle control system. The temporary key serves as a digital mediator that enables secure authentication and authorization without requiring direct physical interaction or complex sensor networks on the parking lot side. The server acts as another intermediary that coordinates between the terminal device and vehicle, verifying drive plans and managing authentication, thereby replacing physical infrastructure with information-based mediation
2Device complexity
If vehicle-side sensors and control devices are used, then device complexity on parking lot is reduced, but safety and efficiency may be compromised
Solution Approach 1:
The patent replaces vehicle-side sensor-based detection with a server-based verification system. Instead of relying on vehicle sensors to detect obstacles and generate safe drive plans, the server performs centralized verification of drive plans using authentication information from terminal devices. This substitution maintains safety by introducing a trusted third-party verifier while reducing reliance on potentially fallible vehicle-side sensing systems
Solution Approach 2:
The patent implements a feedback mechanism where the server verifies drive plans generated by vehicles and provides authentication feedback through temporary keys. The terminal device's authentication information feeds back into the system through the server, which validates whether the drive plan is safe and authorized before allowing execution. This closed-loop feedback system ensures safety by continuously verifying vehicle intentions against authorized parameters, compensating for limitations in vehicle-side sensing
3Reliability
If terminal device generates and verifies temporary keys, then security and reliability are improved, but communication complexity increases
Solution Approach 1:
The temporary key serves multiple functions simultaneously: it acts as an authentication token proving the terminal device's authorization, serves as a verification credential for the server to validate the drive plan, and functions as a secure communication channel identifier between the terminal device and vehicle control system. This multi-functionality consolidates what would otherwise require separate communication protocols and authentication mechanisms into a single universal credential, reducing overall communication complexity while maintaining high security
Solution Approach 2:
The patent transforms the authentication mechanism from static (permanent keys or credentials) to dynamic (temporary keys with limited validity). The temporary key's parameters include expiration time and scope of validity, allowing the system to provide strong security for each parking operation while automatically invalidating credentials after use. This parameter-based approach enables reliable authentication without requiring complex key management infrastructure, as each temporary key is self-contained with built-in validity constraints
Data Source
AI summary
An autonomous valet parking system includes a terminal device, a vehicle, and a server device installed to a parking lot. When receiving a temporary key request from a server device, a terminal device verifies the request, generates a temporary key, and transmits the temporary key to a vehicle and the server device. The server device determines a target parking position of the vehicle, and transmits, to the vehicle, the temporary key and target position information. The vehicle verifies the temporary keys from the terminal device and the server device, generates a drive plan including a route to the target parking position, and transmits the drive plan to the server device. The server device verifies whether the drive plan is available, and notifies the vehicle. When the drive plan is verified to be available by the server device, the vehicle executes autonomous driving control according to the drive plan.