STM32 ARM-based industrial test platform managing the maintenance, overhaul and performance verification of saloon HVAC units used on trains and rail vehicles from a single desktop interface — monitoring and controlling two independent HVAC systems (System 1 / System 2) simultaneously.
Rail HVAC units are critical comfort equipment whose performance must be proven before they are returned to the field after maintenance or overhaul. The HVAC Test Bench was developed by Planck R&D to standardize and digitalize this verification process: it eliminates manual measurement and paper-based records by producing a traceable, repeatable record for every test, and shortens maintenance times by testing two HVAC systems at once.
The system is built on a two-layer architecture in which the embedded control layer and the desktop operator interface communicate over UART. The STM32 ARM-based control board reads component status signals through 16 digital inputs, drives command/relay control through 2 digital outputs, and collects pressure and temperature values of both systems over 8 analog channels, streaming everything to the Windows desktop interface.
Simultaneous monitoring and control of two independent HVAC systems, cutting maintenance times.
Real-time pressure and temperature monitoring proving the refrigeration cycle operates correctly.
Controlled driving of compressor, condenser, heater, liquid valve, evaporator and damper components.
Repeatable, reportable test records replacing manual measurement and paper-based logging.
In-house engineering & manufacturing
Türkiye-based engineering company carrying out in-house manufacturing and software development for railway signaling, ETCS/ERTMS on-board systems and test equipment.
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