at500e intelligent key and lock management system is an intelligent lock management solution tailored for access control and lock opening and closing management in the industrial sector. the system applies cloud computing, big data, industrial iot, original k.app, ek.lock, ek.smartctrl and ek.monitor, and other advanced technologies, realizes reliable “e key” opening, remote authorization, intelligent lock opening and traceable records under the harsh indoor and outdoor environments in the industrial sector, effectively improves o&m efficiency and achieves asset safety management and control.