Battery performance is critical for asset tracking devices. However, hot weather poses a challenge to battery power consumption and stability in outdoor applications. NAMI has developed a Self-powered Asset Tracker, integrated with long-lasting batteries and an energy-harvesting solar panel to charge the batteries indoors and outdoors, extending the tracker’s estimated service life to five years. Being compatible with Hong Kong International Airport’s existing wireless network system, NAMI’s tracker is undergoing a proof-of-concept trial there with the support of Airport Authority Hong Kong. It achieves periodic search function through self-adaptive switching between Bluetooth indoors and GPS outdoors, to provide full coverage and real-time monitoring of the location of luggage trolleys. The next step is to expand the proof-of-concept trial to rental wheelchairs, electric vehicles transporting passengers to boarding gates, cargo trailers at the apron, etc.
NAMI has also developed a Two-phase Immersion Cooling System, specially designed for server systems and high-performance computers, outperforming conventional air cooling known for heavy use of electricity. Traditionally, air traffic control relies on sophisticated computers and electronic equipment to process massive volumes of data and complex calculations, which generate large amounts of heat during operation, necessitating effective thermal management solutions. NAMI’s immersion coolant is safe and eco-friendly with lower global warming potential and high performance that significantly reduces the costs and ensures stable operations. The system is now being trialed at Hong Kong’s Civil Aviation Department’s Control Tower Simulator to pave the way for future expansion of this technology to other large-scale air traffic control systems.