(The core of the intelligent building is the 5A system. The intelligent building is to organically integrate these five systems through the communication network system, integrating the structure, system, service, management and the optimal combination between them, so that the building has a safe and convenient. , High efficiency and energy saving properties. Intelligent building is a borderline and interdisciplinary subject, involving computer technology, automatic control, communication technology, construction technology, etc., and more and more new technologies are used in intelligent buildings.)