Scalable and reliable temperature monitoring system based on Raspberry Pi and OPC UA for Detector Control and Safety Systems
Journal of Instrumentation, vol.21, pp.1-8, 2026 (Scopus)
- Publication Type: Article / Article
- Volume: 21
- Publication Date: 2026
- Doi Number: 10.1088/1748-0221/21/04/c04025
- Journal Name: Journal of Instrumentation
- Journal Indexes: Scopus
- Page Numbers: pp.1-8
- Yıldız Technical University Affiliated: Yes
Abstract
This study presents optimizations to the Massive Temperature Readout System (MTRS), a cost-effective alternative to traditional Programmable Logic Controller(PLC)-based systems for large-scale temperature monitoring. The improved MTRS design streamlines hardware by eliminating intermediate microcontrollers and communication modules, reducing complexity and potential failure points. A unified multi-threaded C++ application replaces the original multi-process software, enhancing performance and managing sensor data acquisition and Open Platform Communications Unified Architecture(OPC UA) server functions within a single process. Furthermore, a novel sensor reading strategy is implemented, overlapping conversion times to achieve higher system performance and increased channel capacity. The optimized system demonstrates the feasibility of a cost-effective, high-performance temperature monitoring solution for integration with OPC UA based industrial communication infrastructures.