Obstacle Detection Error Recovery via Parameter Reinitialization
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Solution Overview
Problem
Conventional obstacle detecting apparatuses require significant time to recover from communication errors, especially when temporary errors occur, leading to prolonged downtime and potential failure in reestablishing communication with sensors.
Innovation Solution
The obstacle detecting apparatus includes a processing unit that repeatedly sets parameters for all sensors when a communication error occurs, allowing operation to continue without considering reestablishment time, and features error determination and warning mechanisms to alert passengers of errors, ensuring sensors remain operational during recoverable errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If parameter setting process is repeated after communication error, then sensor operational status is restored, but time loss increases due to reestablishment process
Solution Approach 1:
The system performs preliminary checks during the parameter setting process to detect communication errors early. By identifying errors during parameter transmission rather than after complete sensor initialization, the system can abort the reestablishment process before significant time is consumed, thus resolving the contradiction between restoring sensor operation and minimizing time loss.
2Ease of manufacture
If communication is continuously interrupted for parameter resetting, then parameter can be retransmitted, but communication reestablishment becomes impossible
Solution Approach 1:
The system implements feedback mechanisms where sensors send response signals during the parameter setting process. This feedback allows the control device to detect communication errors in real-time and adjust the parameter setting process accordingly, preventing continuous interruption that would make reestablishment impossible while still enabling parameter retransmission when appropriate.
3Loss of time
If parameter setting process is aborted early, then time loss is reduced, but sensor operational status may not be restored
Solution Approach 1:
The system dynamically adjusts the parameter setting process based on real-time communication status. Rather than using a fixed abort criterion, the system monitors communication quality and sensor responses throughout the parameter setting process, making adaptive decisions about when to continue or abort based on the current state, thus balancing time loss reduction with ensuring sensor operational status restoration.
Data Source
AI summary
An obstacle detecting apparatus includes sensors and a processing unit. Each of the sensors are rendered operational by predetermined parameters. The processing unit transmits the parameters to the sensors and includes a vehicle state detector, a condition determiner, a communication controller, and a parameter setting processor. The vehicle state detector detects a running state of the vehicle. The condition determiner determines that the running state of the vehicle is one of an operating condition indicating that the sensors should be operated and a forbidding condition indicating that the operation of the sensors should be forbidden. The communication controller performs communication with the sensors. The parameter setting processor transmits the parameters to the sensors and receives a response indicating completion of the process. The parameter setting processor repeats the process upon either a parameter of one sensor not being set, or communication being terminated while the forbidding condition is identified.