ENGINEERING RESILIENT INFRASTRUCTURE FOR BUILDING MANAGEMENT SYSTEMS: NETWORK RE-ARCHITECTURE AND DATABASE UPGRADE AT NESTLÉ PHX

Abstract

In the era of smart buildings and Industry 4.0, Building Management Systems (BMS) have become integral to facility operations, monitoring, and energy optimization. However, the resilience of these systems is critically dependent on the robustness of the underlying network and data infrastructure. This research article presents a case study on engineering resilient infrastructure for the BMS at Nestlé PHX, focusing on network re-architecture and database upgrade strategies. The legacy system faced frequent outages, limited scalability, and inefficient data retrieval, prompting the need for modernization. The project involved a comprehensive overhaul of the network topology to introduce redundancy, segmentation, and failover mechanisms. Simultaneously, a migration from a legacy flat-file database to a scalable relational database management system (RDBMS) was executed, improving performance, data integrity, and disaster recovery capabilities. The methodology adopted included layered network design, real-time monitoring enablement, virtualization, and phased implementation to minimize downtime. Performance evaluation post-deployment showed a 60% improvement in BMS data retrieval time, 75% reduction in unplanned outages, and measurable improvements in operational efficiency.