ITU‐T's Technical Reports and Specifications 489 include displays, servers and data storage. These are determined by the technical requirements and size of the network the digital signage is operating in. Recently, one of the most innovative uses of digital signage has been for life safety, where it complements the fire alarm and life safety systems. In an emergency such as a fire, if the stairwell is not safe for evacuation, the digital display located at egress points (next to the “Exit” signs) can provide appropriate safety messages. 7.3.8 Room Scheduling Software Most large buildings have numerous conference and meeting rooms. There is a case to be made for to control the scheduling of meeting and conference rooms in order to not only manage any meetings/events in those rooms but also be able to integrate energy and other savings measures. Using software applications which are integrated with the HVAC, lighting and occupancy sensing systems, one can effectively find and book space, and also reserve equipment, unlock doors, change the temperature set‐point, or turn on the lights and eventually revert the room back to unoccupied mode. This helps optimize the energy use in the conference rooms so that the room is lit and cooled (or heated) just prior to the scheduled meeting and brought back to unoccupied status once the meeting is over. 7.3.9 Visitor Management System Visitor management refers to tracking the use and movement of visitors to a building or site. Visitor registration & management is a now an integral part of an intelligent building. There is a case to be made to screen and track the many visitors who pass through the entrances to a facility. Such a system will contribute to the safety protection and wellbeing of the occupants and employees in the building. A visitor management system will typically provide a record of building use and therefore is often used to complement building security and access control systems. 7.3.10 Parking Guidance and Management Systems An intelligent building will need to have a sophisticated parking control mechanism not only from a convenience perspective for drivers but for a security and fee collection perspective. A good parking management system ties into the other building systems as well. Parking Guidance & Management Systems provide a way to help drivers park their cars quickly, safely and easily and at the same time keep the parking lots, safe and secure. It typically ties into the access control and video surveillance systems. Normally the following is included: (1) software to tie in all the components of the Parking management system, (2) automated access control system – Automatic gates, barrier controls, ticketing systems, (3) Security – video surveillance, under vehicle scan system, licence plate recognition systems, (4) Automated Fee systems, (5) Real‐time Vehicle counting and (5) Real time parking guidance showing the empty slots at every level. 7.4 Integrated Building Management Systems An Integrated Building Management Systems (IBMS) acts as the “heart” of the Intelligent Building. It is a holistic platform designed to manage all the disparate individual systems in a building including BAS (HVAC), Lighting, Security, Surveillance, Access, and Life Safety as an example. Each of these individual systems typically acts individually and does not communicate with the other systems. For example, the HVAC system is independent of the access control system and the lighting system. If