Sensor Channel Fault Detection via Dual Error Checking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Advanced driver assistance systems (ADAS) rely on sensor data integrity for accurate vehicle control, but corruption or loss of data during transfer can compromise safety functions, necessitating a method to determine sensor data integrity.
Innovation Solution
An electronic control system and method that compares first and second error detection results on raw data to determine sensor channel integrity, using a transceiver, detector, and comparator to enhance data reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sensor data is transmitted to electronic control devices for processing, then driver assistance functions can be implemented, but data corruption or loss during transfer may occur compromising safety
Solution Approach 1:
The patent applies preliminary action by having the sensor perform error detection logic on raw data before transmission to the electronic control device. This pre-detection of errors in the source device prevents corrupted data from being processed downstream, thereby maintaining data integrity while enabling driver assistance functions.
Solution Approach 2:
The patent implements feedback by transmitting the first error detection result from the sensor back to the electronic control device. This feedback mechanism allows the control device to verify data integrity and make informed decisions about data processing, resolving the contradiction between enabling functions and ensuring reliability.
2Device complexity
If error detection logic is performed only at the electronic control device, then processing can be simplified, but the sensor cannot identify faulty channels
Solution Approach 1:
The patent applies segmentation by dividing the error detection function into two parts: the sensor performs first error detection logic to identify faulty channels, and the electronic control device performs second error detection logic for verification. This segmentation enables precise faulty channel identification at the source while maintaining manageable system complexity through distributed processing.
3Measurement precision
If the sensor performs error detection on raw data, then faulty channels can be identified, but the electronic control device must verify the detection results
Solution Approach 1:
The patent applies copying by having the electronic control device perform the same error detection logic (second error detection logic) that the sensor used (first error detection logic). This independent verification through copying the detection process ensures accuracy of faulty channel identification while keeping the verification process straightforward and manageable.
Data Source
AI summary
The disclosure relates to an electronic control system, device, and method. Specifically, according to the disclosure, an electronic control device comprises a transceiver receiving, from a sensor, raw data and a first error detection result obtained by performing a first error detection logic on the raw data, a detector obtaining a second error detection result by performing a second error detection logic on the raw data, and a comparator determining whether a sensor channel included in the sensor is faulty based on the first error detection result and the second error detection result.