Wireless measuring point for the railway superstructure

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APR37550" target="_blank" >RIV/00216305:26110/23:PR37550 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Wireless measuring point for the railway superstructure

Original language description

This is a set designed specifically for use on railway superstructure. It is part of a diagnostic system for automatic identification of selected harmful phenomena in the track. The kit includes in its basic configuration two parts, a measuring and transmitting part and a superordinate part with the possibility of storing and evaluating the measured data. The measuring part consists of the so-called WMP module. The superordinate system is equipped with wifi connectivity and, in particular, an installed FTP server. The WMP module consists of a board with an ESP32 microcontroller from Espressif Systems supplemented with additional circuits including wifi connectivity. The WMP module works as a WiFi client that connects to an optionally specified SSID of the parent computer. A simple web-based interface is available on the WMP to set up and control the measurements. A Raspberry Pi 4 microcomputer with Debian operating system was chosen as the parent collection and evaluation system. Accelerometer sensors with different basic ranges from about 6 g to 400 g can be connected to the WMP module. The sensors communicate with the WMP module via the I2C bus. The WMPs are designed in such a way that they can be used at any location on the track superstructure, i.e. on the rail, sleeper, but also around the track. Before the train passes, a measurement is triggered by a software trigger (change in vibration level), followed by a measurement until the vibration is reduced to a set threshold level. Another option is to start the measurement with a button and stop the measurement at a defined time interval. After the measurement, the measured data is stored in the memory of the measuring unit and at the appropriate time transferred via wifi network to the FTP server directory of the parent system for later analysis. The WMP module can be set up using a set of commands. This is done from the web interface running on the WMP.

Czech name

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Czech description

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Type

G_funk - Functional sample

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Internal product ID

FV_2022_1

Numerical identification

182845

Technical parameters

The great advantage of this solution is its low cost and simple hardware solution, as well as the cost-effective operation of the sensing unit. Under certain circumstances (with a suitable number and length of measured events per day), according to a preliminary calculation, it allows battery operation for a longer period of time, up to tens of days. Another advantage is the possibility of maintenance-free and automatic operation in the railway track Translated with www.

Economical parameters

The wireless measuring point for railway superstructure provides the possibility to measure and study vibration phenomena on the railway superstructure. The knowledge of the phenomena occurring on the superstructure enables optimal maintenance of railway lines and the design of appropriate anti-vibration measures. At present, the economic benefits cannot be evaluated. On the other hand, it allows for a very affordable price for use in the teaching of students.

Application category by cost

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Owner IČO

00216305

Owner name

Vysoké učení technické v Brně

Owner country

CZ - CZECH REPUBLIC

Usage type

A - K využití výsledku jiným subjektem je vždy nutné nabytí licence

Licence fee requirement

A - Poskytovatel licence na výsledek požaduje licenční poplatek

Web page

ftp://147.229.19.208/Vystupy