CUDA is a holistic underground mine safety system, which features advanced helmet-worn headlight units for every miner and intelligent handheld gas detectors for safety inspectors. It's built on the ongoing introduction of underground 5G networks and the development of underground disaster prediction technology, to benefit both miners and the safety responsible, by facilitating real-time emergency information, quick and accurate gas leakage disaster source determination, and intuitive evacuation navigation needed in an emergency.