Target Simulator Calibration via Deviation Offset
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current active environment detection systems, such as radar and lidar systems, require frequent recalibration, which is costly and time-consuming, often necessitating disassembly or on-site visits by technical service providers due to changes in electrical behavior of components over time.
Innovation Solution
A method for calibrating target simulators using a reference reflector and a pre-calibrated calibration device to measure and offset deviations in signal parameters, allowing for independent and efficient calibration of complete signal paths without the need for disassembly or on-site visits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional calibration methods are used requiring disassembly or on-site visits, then calibration accuracy can be maintained, but calibration time and costs increase significantly
Solution Approach 1:
The patent introduces a calibration device as an intermediary component that can be easily coupled to the target simulator. This calibration device includes a calibration reflector that generates known reflection characteristics, serving as a mediator between the transmitting and receiving devices to enable accurate calibration without complex disassembly procedures or on-site service visits.
Solution Approach 2:
The calibration device creates a simplified copy or model of the actual calibration scenario. By using a calibration reflector with predetermined reflection characteristics, the system replicates the essential calibration function without requiring the complexity of original equipment manufacturer (OEM) calibration procedures, thereby reducing time and cost while maintaining accuracy.
2Reliability
If frequent recalibration is performed to maintain system accuracy, then measurement reliability improves, but operational downtime and costs increase
Solution Approach 1:
The patent enables the target simulator to perform self-calibration through the integrated calibration device. The system can autonomously execute calibration procedures using the calibration reflector and processor without requiring external service personnel, thereby maintaining high reliability through frequent calibration while minimizing operational downtime.
Solution Approach 2:
The calibration device is pre-configured with known reflection characteristics and can be quickly coupled to the target simulator before calibration is needed. This preliminary preparation allows for rapid calibration execution, ensuring system accuracy is maintained without significant operational interruption.
3Measurement precision
If complex calibration procedures are used to account for component electrical behavior changes, then calibration accuracy is maintained, but device complexity and operational complexity increase
Solution Approach 1:
The calibration device applies localized calibration to specific signal paths within the target simulator. By focusing calibration on individual transmitting and receiving devices through the calibration reflector, the system maintains high calibration accuracy for each component without requiring complex system-wide calibration procedures.
Solution Approach 2:
The calibration processor analyzes changes in signal parameters (such as amplitude, phase, or time of flight) reflected from the calibration reflector and automatically adjusts system parameters to compensate for component electrical behavior changes. This automated parameter adjustment maintains calibration accuracy without requiring complex manual procedures.
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
This method significantly reduces calibration costs and time by enabling on-site, independent calibration of target simulators, reducing downtime and operational expenses while maintaining accurate signal path calibration.
Implementation Method 1
reflecting, via a reference reflector mounted at a predetermined spatial position in relation to a receiving device and the transmitting device, the test signal to the receiving device
Data Source
AI summary
A method for calibrating a target simulator for an active environment detection system includes: calibrating a complete signal path comprising a first signal path and a second signal path by determining a first deviation of a first value of at least one signal parameter from a first reference value of the at least one signal parameter; calibrating one of the first signal path and the second signal path by determining a second deviation of a second value of the at least one signal parameter from a second reference value of the at least one signal parameter; and calibrating the other of the first signal path and the second signal path by offsetting of the first deviation with the second deviation.