Design and development of a data acquisition system to monitor comfort and safety in railways

摘要

The Railway Technology Research Centre (CITEF) has developed a new data acquisition system (DAS) based on Odroid that allows the measurement of voltage signals (±10V) for various sample frequencies up to 6.4 kHz. The DAS consists of a main box that is compact and easy to transport. This DAS has an intuitive graphical user interface (GUI) that is accessible from any browser (via Ethernet or Wi-Fi) without any installation and can be used on a mobile, tablet or laptop from any web browser. These features make the CITEF DAS perfect for performing railway measurements to validate compliance with the standards UNE 14363 (running safety) and UNE 12299 (passenger comfort). The CITEF DAS has been validated against both laboratory measurements and experimental measurements in the field and it has been shown to be a cost-saving method compared to other sensor systems, such as dynamometric axes or sensed bogies.