<p>This document specifies the Initial System Architecture for CMIPS. The development of the system architecture is a research topic in itself and therefore the architecture will evolve during the project. The final system architecture will be specified in a deliverable at the end of the project. This document also addresses a number of topics that have shaped the design of the system architecture. </p> <p>The key objectives of the CMIPS system architecture are: <ul> <li>Automated assessment of building environments in real-time</li> <li>Automated personalisation of the workplace environment</li> <li>Readily deployable sensors by use of wireless networking technology</li> </ul> <p>Building assessment is currently a time-consuming exercise involving manual procedures, with the result that assessments are carried out infrequently, if at all. The CMIPS view is that assessment can be an invaluable tool for the effective management of buildings if the process can be made easier to carry out. The architecture of the CMIPS Building Assessment identifies a broad range of stakeholders who have different assessment objectives, including energy efficiency of the building, well-being of the occupants and worker productivity. Consequently, CMIPS has identified a number of performance indices that address these specific assessment objectives. A phased approach to developing an on-demand automated assessment system has been defined, based on a multi-value attribute technique, to enable incremental development.</p> <p>Prior research has identified that occupant well-being is a major contributor to overall worker productivity and that enabling occupants to have control over their environment is a factor in improving well-being. The CMIPS Building Control architecture specifies how occupant’s environment can be automatically adapted to meet their individual preferences, while complying with any over-riding policy objectives of the building manager. A hierarchical system of agents – personal, local and central – is proposed and the corresponding functions and interactions necessary to achieve personalisation are specified.<br> Both the CMIPS building assessment and control architectures require access to a sensor-rich environment to collect real-time data on the state of the environment and the occupants. CMIPS envisages the use of both environmental sensors to measure temperature, air quality, etc. and social sensors to measure the occupants’ satisfaction levels. The CMIPS sensor networking architecture is based on multi-hop wireless communications to ease deployment of these sensors.</p> <p>The document also analyses key developments and trends that were significant in shaping the CMIPS system architecture, including:</p> <ul> <li>evolution of Building Management Systems (BMS) from stovepipe architectures to integrated solutions and the convergence of BMS and IT systems within buildings</li> <li>prior research by Arup that identifies the complex factors that influence workplace performance</li> <li>prior research in Building Intelligence scoring systems<br> <li>the increasing use of smartcards within buildings for access control, identification, commerce, etc.</li> <li>prior research into the impact on worker productivity of workplace environmental conditions.</li> </ul>
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Last updated: 19 August 2007.
