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OUR ENHANCED PREVENTIVE MAINTENANCE PROGRAM (PMP)

Introduction

We’ve already introduced you to Nyx Hemera Technologies’ Preventive Maintenance Program (PMP), which includes technical support, an annual on-site inspection, software updates and an annual report. Now, in addition to these services, Nyx Hemera Technologies offers a remote supervision service, already deployed with our TLACS customers.

1. The need

To meet the growing needs of our customers for improved maintenance and enhanced supervision to optimize their lighting system investments, Nyx Hemera Technologies has expanded its preventive maintenance offer. We now personalize this service by integrating remote supervision by our technical team.

2. The service

To enable real-time remote system monitoring and in-depth analysis, customers must grant us remote access to their system. For customers who do not already have a Supervisory Control and Data Acquisition (SCADA) system, its installation is imperative.

Nyx now provides regular automated monitoring of the lighting system, tailored to the condition of the system and its components. In the event of a failure, both the customer and Nyx Hemera Technologies receive e-mail alerts including key indicators. Our team can then work with the customer to diagnose and implement corrective measures.

3. The report

System status reports are sent to customers on a monthly basis, but the frequency can be tailored to their specific needs. Each new PMP contract begins with a software update, followed by an in-depth analysis of the system’s operating data. This provides recommendations for optimizing the lighting system, including maintenance of luminaires, LED drivers, LPCs, and other suggestions for improvement.

The report includes :

  1. A summary of actions to be taken to improve the system or correct anomalies. b)
  2. General status of tunnel(s) with data such as date, control status, photometer status and ping cycle time.

3. Le statut de chaque équipement (à l’exception des LPCs)

4. Le statut des LPCs

Each faulty LPC is identified, and in the event of a problem, avenues of analysis are suggested. Here are some examples;

  • A light is always on:
    • It may be a configuration problem
    • The LPC may be faulty
    • Noise or low impedance can affect the quality of the signal on the carrier current.
  • A light remains off:
    • This may be due to a fault in the luminaire
    • The LPC may be faulty

5. Liste des points à traiter

Verification and repair actions are then listed on a checklist to be completed either by the customer or by Nyx Hemera Technologies.

6. Cas de support

Technical support cases (other than maintenance) are identified and listed in a tracking table including support number, RMA number, description and status.

7. Conclusion du rapport

The conclusion highlights priorities and summarizes actions to be taken.

4. Nyx Hemera Technologies visits the site

PMP contracts generally provide for an annual site visit, but additional visits may be requested by some customers, whether for major maintenance operations, staff training or the gradual replacement of first-generation LPCs by LPC480s. (See article on interoperability https://www.nyx-hemera.com/2023/03/06/tlacs-u-la-solution-integree-pour-les-petits-tunnels-et-passages-souterrains-2/).

5. Conclusion

The stability of TLACS does not require continuous supervision, and the lighting system can continue to operate optimally even in the presence of minor faults or equipment failures. This situation has led some users to neglect supervision, intervening only when operational problems arise, either because no one is specifically assigned to this task, or because the tunnel operator lacks the necessary trained personnel to ensure adequate tunnel supervision.

Ongoing supervision and maintenance are essential to ensure that equipment redundancy is maintained and to reduce the risk of major breakdowns. An unmaintained system increases the risk of major failures, which can lead to tunnel closure, user complaints and an increased risk of accidents.

In addition to detecting intermittent problems, the preventive maintenance service (PMP) offered by Nyx Hemera Technologies maintains n system, which offers the following advantages:

  • Increased safety.
  • Optimum operational efficiency.
  • More efficient energy management.
  • Preservation of the investment made in the lighting system.
  • Reducing the number of unplanned interventions that could disrupt road traffic or lead to complete tunnel closure.
  • Increased customer satisfaction.

Entrusting the operation of the lighting control system to specialists is probably the best long-term investment a tunnel operator can make to guarantee the ongoing safety and performance of its infrastructure.

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