{"id":9854,"date":"2025-02-06T15:20:27","date_gmt":"2025-02-06T14:20:27","guid":{"rendered":"https:\/\/www.axcentcompany.it\/?p=9854"},"modified":"2025-03-21T11:50:38","modified_gmt":"2025-03-21T10:50:38","slug":"la-telediagnostica-ferroviaria-levoluzione-della-manutenzione-attraverso-lanalisi-dei-dato","status":"publish","type":"post","link":"https:\/\/www.axcentcompany.it\/en\/2025\/02\/06\/la-telediagnostica-ferroviaria-levoluzione-della-manutenzione-attraverso-lanalisi-dei-dato\/","title":{"rendered":"TELEMATICS FOR RAIL TELEDIAGNOSIS: THE EVOLUTION OF MAINTENANCE THROUGH DATA ANALYSIS"},"content":{"rendered":"
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Insights & curiosities<\/div>STAY TUNED<\/a><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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TELEMATICS FOR RAIL TELEDIAGNOSIS: THE EVOLUTION OF MAINTENANCE THROUGH DATA ANALYSIS<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The world of rail, and more generally that of transport, is a sector in constant evolution and growth, where themes and technologies are being introduced which are increasingly innovative and revolutionary. It is obvious that transport operators are not always ready to acquire these technologies and seize the opportunities associated with them; in Italy, this happens due to problems related to backwardness of infrastructures, Little propensity to change and a form of lies that is most often based on outdated dogmas.\nIn this scenario, the maintenance of transport means is crucial to ensure safety and reliability for the travellers who use them daily. It is easy to understand how, thanks to proper maintenance of the vehicles, the risk of in-service failures, line stops, passenger dissatisfaction and overcrowding due to a low percentage of vehicle availability is considerably reduced.<\/p>

In this scenario, the maintenance of transport means is crucial to ensure safety and reliability for the travellers who use them daily. It is easy to understand how, thanks to proper maintenance of the vehicles, the risk of in-service failures, line stops, passenger dissatisfaction and overcrowding due to a low percentage of vehicle availability is considerably reduced.<\/p>

Types of maintenance in the railway world<\/h1>

Focusing on the railway environment, different types of maintenance are distinguished according to their nature; leaving out the interventions of an extraordinary nature, we can summarize the maintenance interventions in four distinct categories:<\/p>

  1. Preventive or cyclical maintenance<\/strong>: carried out on the basis of a time-based or mileage-based schedule, or at set intervals of time, in accordance with the vehicle manufacturer\u2019s manuals and maintenance schedules.<\/li>
  2. Corrective or failure maintenance<\/strong>: carried out following the detection or appearance of a fault, aimed at eliminating the resulting failure and restoring the correct functioning and condition of the vehicle.<\/li>
  3. Condition maintenance (on condition)<\/strong>based on monitoring of performance and data from a particular system concerned, is performed when it is necessary. It allows you to intervene if a particular condition occurs on a component or system analyzed, and possibly anticipate the appearance of a fault.<\/li>
  4. Predictive maintenance<\/strong>: allows intervention to be carried out even before a failure occurs or symptoms develop. This is done by analysing the data, mainly diagnostic, from the medium, combining mathematical models and graphical simulations of the trend of these data in order to determine the cause\/effect relationships that cause a failure to occur. This allows you to predict how long it will take for a given failure to occur, so that you can prevent it and intervene before it occurs.<\/li><\/ol>

    From the points listed above, it is clear that today predictive maintenance is the most important thing to try to minimize the occurrence of failures that can cause more or less serious problems during the operation of a rolling stock. This type of maintenance is increasingly linked to the concepts of machine learning and artificial intelligence, which allow you to obtain amazing processing and results with significantly reduced times compared to human analysis of thousands of data.<\/p>

    Telediagnostics - what it is and how it applies<\/h1>

    In this context, what is called Telediagnostica<\/em>or to analyse real-time diagnostic data from the vehicles, in order to know the actual state of health of them even before they return to the workshop for repair. Through this concept, it is possible to obtain essential information to optimize the downtime of the vehicle during a maintenance period, thus increasing the levels of availability to the service. This information, and therefore the data associated with it, can be obtained, visualized and analysed through modern tele-diagnostic systems which may be more or less complex as required, but that in any case are based on a dedicated Software structure with supervision and control of highly qualified personnel physically located in operating centers often called \"Control Rooms\"Control Room<\/em>or even remotely located.<\/p>

    The on-board equipment stores its own diagnostic data (e.g. a fault or an alarm) as well as process data (e.g. temperature, pressure, speed), thus creating a database andBig Data<\/em>The on-board network provides ground transmission to processing centres and\/or suitable data loggers installed on the train for local storage. The ground processing centre is able, by means of appropriate algorithms, to analyse the data and detect in a predictive manner any anomalies which could lead to failures or malfunctions during operation, and alert in real time the authorized personnel who can thus organize the maintenance operations, not only according to what is already programmed in the field of preventive maintenance, but also on the basis of the actual train conditions detected in operation.<\/p>

    Before we go into the details of Telediagnostics and its possible applications, it is necessary to understand the evolution of maintenance concepts that can be obtained through it. The result will be a shift from maintenance with slow and unreliable repair times to advanced maintenance with optimisation of associated time and costs.<\/p>

    The current scenario - traditional maintenance<\/h1>

    Traditional maintenance is certainly sequential. As you can see from Figure 1, each step associated with it requires the completion or verification of the previous one to which it is linked. So, the maintenance staff, only after having found each single point can complete the repair of the vehicle, with poor results of optimization of time.<\/p>

    Modern and advanced maintenance allows to overcome the obstacles present in traditional one. By carrying out the unloading and data analysis activities in parallel with the definition of the interventions, it is possible to save time from the downtime of the vehicle, since these activities can be carried out while the vehicle is still in operation. These activities are now carried out on the agenda by the so-called<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Figure 1: Traditional maintenance<\/p>

    It is clear that such a maintenance typology can nowadays be modernized and improved in many aspects, by placing a series of activities in parallel, and perhaps even while the rolling stock has not yet been returned to maintenance, The entire flow of interventions is optimised.<\/p>

    A look into the future - Innovative maintenance<\/h1>

    Modern and advanced maintenance allows to overcome the obstacles present in traditional one. By carrying out the unloading and data analysis activities in parallel with the definition of the interventions, it is possible to save time from the downtime of the vehicle, since these activities can be carried out while the vehicle is still in operation. These activities are now carried out on the agenda by the so-called Control Rooms, or sections or divisions dedicated to such operations formed by highly qualified personnel with extensive experience in the sector. The real-time data sent by the vehicles are analysed by the operating staff, and supplied to advanced artificial intelligence systems to verify failures on the vehicle and possible predictions of future failures. In this way, when the vehicle is returned to storage, the interventions to be carried out are already known, as they have been defined even before its return, thus obtaining the first time savings.\u00a0Control Room<\/em>or sections or divisions dedicated to such operations formed by highly qualified personnel with extensive experience in the sector. The real-time data sent by the vehicles are analysed by the operating staff, and supplied to advanced artificial intelligence systems to verify failures on the vehicle and possible predictions of future failures. In this way, when the vehicle is returned to storage, the interventions to be carried out are already known, as they have been defined even before its return, thus obtaining the first time savings.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    Figure 2: Innovative maintenance<\/p>

    As can be seen from Figure 2, parallel activities allow a dual output to be achieved simultaneously:<\/p>