Remote Vehicle Control Verification Cycle for Reliable Parking
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Solution Overview
Problem
Existing vehicle control systems for remote parking and navigation in challenging terrain face reliability issues due to potential communications failures between smartphones and park assist control systems, which can lead to unreliable vehicle control.
Innovation Solution
A control system that performs a verification cycle to ensure the remote device's correct operation by transmitting verification requests and listening for replies, adjusting the computational burden based on the device's state, and using a cyclic redundancy check to maintain communication integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control system continuously verifies remote device operation through computationally intensive operations, then reliability of remote vehicle control is improved, but the computational load on the remote device increases
Solution Approach 1:
The verification cycle dynamically adapts the complexity of verification operations based on the current operational context. The system adjusts whether to perform computationally intensive operations (such as cryptographic verification) or simpler verification methods, allowing the verification strength to be dynamic rather than static. This resolves the contradiction by making verification intensity adaptable to actual reliability needs while conserving computational resources when full verification is not critical.
Solution Approach 2:
The system changes verification parameters (such as verification frequency, operation complexity, and challenge type) based on operational states. When the vehicle is stationary or in low-risk states, simpler verification is used. When movement is initiated or in challenging terrain, more rigorous verification is applied. This parameter adaptation allows the system to maintain reliability when needed while reducing computational burden during normal operation.
2Reliability
If the control system performs rigorous verification cycles to ensure remote device correctness, then communication integrity is improved, but the time required for verification increases
Solution Approach 1:
The control system performs preliminary verification actions continuously in the background, maintaining a rolling verification of the remote device connection. Rather than performing a single time-consuming verification before each command, the system continuously exchanges verification signals (such as heartbeat messages or periodic challenges) that confirm communication integrity in advance. This allows the system to have verification readiness without adding significant delay when actual vehicle control commands are issued.
3Measurement precision
If the control system requires the remote device to perform computationally intensive operations during verification, then verification accuracy is improved, but the operational states requiring full verification capacity increase
Solution Approach 1:
The verification system applies different verification qualities to different operational states and communication channels. Critical control commands (such as movement initiation or emergency stop) receive full computationally intensive verification, while routine status updates or non-critical commands use simplified verification methods. This local differentiation of verification quality ensures high accuracy where needed while reducing the overall burden on the remote device for less critical operations.
Data Source
AI summary
A control system is configured to: transmit a verification request signal to a remote device; listen for a verification request reply signal transmitted from the remote device in response to the verification request signal being transmitted; listen for a remote device state signal transmitted from the remote device providing remote device state information indicating in which predefined state the remote device is currently operating, the operation information based on the remote device state information; determine whether information comprised by the verification request reply signal includes expected operation result information being operation result information corresponding to an expected result of the operation defined by the operation information; and control, or provide input to the system to control, motion of the vehicle in response to the motion control signal received from the remote device based on a correspondence between the received operation result information and the expected operation result information.