When is the right time to turn off a machine for maintenance? Is it better to exploit the entire usable life of a device (corrective maintenance) with the risk of machine downtime, or replace still running ones before they die out (preventive maintenance) in order to avoid downtime.
With the advent of Industry 4.0, companies can now monitor the entire production cycle and have a deeper, real-time, understanding of their activities, making preventive maintenance possible. This approach results in considerable savings for companies compared to classic preventive maintenance, as the maintenance itself is only activated if necessary.
Systems of preventive maintenance for elevators and buildings
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In an era which is characterized by rapid technological transformation, preventive maintenance can be relevant not only to large industrial plants but to smaller buildings and infrastructures as well. Preventive maintenance presents a series of solutions to these kinds of structures, such as forms of monitoring for people’s well-being or structural monitoring. This would keep technicians away from tasks which would often cause significant or even fatal injuries.
The development of the system of preventive maintenance for elevators and buildings has been developed in such sense. This system is based on a machine-learning platform which communicates with a set of smart sensors and is capable of producing synthetic indices regarding the conditions of the elevator and the entire building. Therefore, a continuous monitoring of the building conditions is made possible and alarm can be raised in case of anomalies.
Electronic signature analysis applied to vending machines
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One of the main issues related to the implementation of preventive maintenance is the need to set up additional sensors which can turn out to be costly and invasive. In the case of installations that are managed by a sequential programmer, a low-cost approach can be used called electronic signature analysis. It employs the electrical signals-provided information in order to identify the conditions of each installation.
A system of preventive maintenance for vending machines has been developed in this regard. This system consists of the electric absorption of each step of the product supply, in order to identify the eventual anomaly within the normal functions of the machine. In this way, a continuous monitoring of the machine conditions is made possible without the need for additional sensors.
Data Collection, Data Analysis, Characterisation of the absorption, Algorithm Development, Deployment
Systems of preventive maintenance for low-tension switches
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Market competitiveness forces enterprises to opt for production plants with a high level of reliability, flexibility and safety. It follows that maintenance strategies have evolved from a standard cyclic approach to more advanced approaches, such as preventive maintenance, as these require direct intervention only in the case of a deviation from normal conditions being detected in the plant.
A system of preventive maintenance for low-tension switches has been developed in this regard. It is based on an innovative method which is capable of diagnosing and foreseeing the remaining useful life period of the given device, thanks to a set of smart sensors customized for each application. In this way, maintenance works need only to be performed if strictly necessary, which consequently deminishes maintenance-related costs and increases device availability.
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