Locking system for hotels

摘要: The disclosure relates to a locking mechanism and related control system. It is intended for use in hotels other private public buildings which require high degree of security, also make keys available the general public, or persons whose reliability unknown. system includes plurality expendable self-powered key elements each defining an individual code, validator element under hotel desk personnel assigning codes specific rooms at checkin time, memory means room receiving information from comparator comparing received with code on assigned match prior activating lock mechanism. cancels checkout time upon surrender key, or, event guest leaves taking him, can be invalidated by assignment new code. power source used actuate opening means, thereby eliminating necessity separate door.