Propagation Delay Statistics for Fixed Delay Variation in FA Networks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional techniques fail to account for the variation in fixed delay when assessing propagation delay in FA networks, leading to inaccurate predictions.
Innovation Solution
A statistical value calculation apparatus that measures and calculates the variation in fixed delay based on multiple propagation delays, considering both variable and fixed delays in the propagation delay model.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional techniques measure propagation delay at a measurement object in continuous operation, then the measurement process is simple and fast, but the variation in fixed delay is not taken into account leading to inaccurate assessment
Solution Approach 1:
The patent segments the propagation delay into two distinct components: fixed delay (which varies each time the measurement object is activated) and variable delay (which varies during continuous operation). By separating these components, the measurement process can accurately assess both types of delays using different methodologies, thereby improving overall measurement precision without requiring a completely complex new system.
Solution Approach 2:
The patent performs preliminary measurements of propagation delay multiple times during continuous operation to establish a baseline distribution. This preliminary action allows the system to later distinguish between variable delay (within activation) and fixed delay (between activations), enabling accurate assessment without requiring complex real-time separation during a single measurement.
2Measurement precision
If multiple propagation delays are measured each time activation is performed to capture fixed delay variation, then the accuracy of propagation delay assessment improves, but the measurement time and number of operations increase
Solution Approach 1:
The patent performs a sufficient number of propagation delay measurements during continuous operation to capture the variable delay distribution, without requiring excessive measurements. This partial action approach captures the necessary data for accurate assessment while minimizing measurement time and operational overhead.
Data Source
AI summary
A statistical value calculation apparatus (100) includes a variation calculation unit (110). When a model indicating that a variation in propagation delay consists of a variation in variable delay and a variation in fixed delay is assumed as a propagation delay model indicating the variation in the propagation delay, in which the propagation delay is a delay that occurs at a measurement object (400) which relays data in a wired network, the variable delay is a delay that varies while the measurement object (400) is in continuous operation, and the fixed delay is a delay that varies each time the measurement object (400) is activated, and when activation of the measurement object (400) is performed multiple times and a plurality of propagation delays at the measurement object (400) in continuous operation are measured each time activation of the measurement object (400) is performed, the variation calculation unit (110) measures the fixed delay based on the plurality of propagation delays measured at the measurement object (400) in continuous operation upon each activation of the measurement object (400), and calculates the variation in the fixed delay based on the plurality of measured fixed delays.