document: LAN-based building maintenance and surveillance robot The building and construction industry is the major industry of Hong Kong as in many developed countries around the world . After the commissioning of a high-rise building or a large estate , substantial manpower , both inside the management centre under a standby manner , as well as surveillance for security purposes around the whole building , is required for daily operation to ensure a quality environment for the occupants . If the surveillance job can be done by robots , the efficiency can be highly enhanced , resulting in a great saving of manpower and the improved safety of the management staff as a by-product . Furthermore , if the robot can retrieve commands from the building management system via a local area network -LRB- LAN -RRB- , further savings in manpower can be achieved in terms of first-line fault attendance by human management staff . This paper describes the development of a robot prototype here in Hong Kong , which can handle some daily routine maintenance works and surveillance responsibilities . The hardware structure of the robot and its on-board devices are described . Real-time images captured by a camera on the robot with pan/tilt/zoom functions can be transmitted back to the central management office via a local area network . The interface between the robot and the building automation system -LRB- BAS -RRB- of the building is discussed . This is the first key achievement of this project with a strong implication on reducing the number of human staff to manage a modem building . Teleoperation of the robot via the Internet or intranet is also possible , which is the second achievement of this project . Finally , the robot can identify its physical position inside the building by a landmark recognition method based on standard CAD drawings , which is the third achievement of this project . The main goal of this paper is not the description of some groundbreaking technology in robotic development . It is mainly intended to convince building designers and managers to incorporate robotic systems when they are managing modem buildings to save manpower and improve efficiency
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extractive_keyphrases: security purposes building management system local area network hardware structure teleoperation landmark recognition method
abstractive_keyphrases: lan-based building maintenance and surveillance robot high-rise building first-line fault attendance pan/tilt/zoom functions