Test Circuit for Antivalence Transmission Path Error Detection
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Solution Overview
Problem
Existing systems with antivalence transmission paths in safety-relevant applications, such as rail systems, face significant delays in error detection, leading to untimely correction of transmission errors and subsequent disruptions due to the lack of a mechanism for timely testing of the antivalence transmission path functionality.
Innovation Solution
A test circuit arrangement is introduced, comprising a signal image changing circuit, a signal sensor device, and an evaluation device, which can be coupled to the antivalence transmission path to control and test the signal image changes, allowing for the detection of errors during a test phase and ensuring error-free signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system relies on normal operation and state changes to test the antivalence transmission path, then the system can function during normal operation, but the error detection time becomes very long when no operation or state change occurs
Solution Approach 1:
The patent applies preliminary action by implementing a test circuit arrangement that can proactively initiate tests of the antivalence transmission path independent of normal system operation. The signal image switching circuit can be configured to switch between different signal images, and the signal sensor device can detect these changes to test transmission path functionality without waiting for operational state changes in the first device, thereby reducing error detection time
2Productivity
If the system waits for operational state changes to detect errors, then normal operation is maintained, but timely error detection and correction is prevented
Solution Approach 1:
The patent implements feedback through the evaluation device that receives signals from the signal sensor device and determines whether transmission errors have occurred. This feedback mechanism allows the system to continuously monitor transmission path integrity and promptly identify errors, enabling timely correction and maintaining high system availability without relying on operational state changes
Data Source
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Figure 3a~3b
AI summary
The application relates to a test circuit arrangement (100, 200) for a system (240, 340, 440, 540) with an antivalence transmission path (246) arranged between a first device (242, 342, 442, 542) of the system (240, 340, 440, 540) and a second device (244, 344, 444, 544) of the system (240, 340, 440, 540) and a first transmission path (248) and a second transmission path (250), wherein the antivalence transmission path (246) is configured to transmit an antivalent signal image from the first device (242, 342, 442, 542) to the second device (244, 344, 444, 544). 544), comprising a signal image switching circuit (102, 202, 302, 402, 502) that can be arranged in the antivalence transmission path (246), a signal sensor device (104, 204) that can be coupled to a coupling area (256) of the antivalence transmission path (246) arranged in the transmission direction behind the signal image switching circuit (102, 202, 302, 402, 502),and an evaluation unit (108, 208) connected to the signal image changer (102, 202, 302, 402, 502) and the signal sensor unit (104, 204), wherein the evaluation unit (108, 208) comprises a signal image changer control (114, 214) configured to control the signal image changer (102, 202, 302, 402, 502) with at least one switching command during a test phase, wherein the evaluation unit (108, 208) comprises a test module (116, 216) configured to test the functionality of the system (240, 340, 440, 540) during the test phase, based on the at least one switching command and at least one signal image detected by the signal sensor unit (104, 204).