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5 Unleashing the potential of the Internet of Things
8 Reference architecture of ASM service framework
8.1 Reference architecture
Figure 2 shows a reference architecture of the ASM service framework which consists of ASM
service framework functions, functional entities (FEs) of each ASM service framework function,
reference points between each ASM service framework function.
Figure 2 – Reference architecture of ASM service framework
As shown in Figure 2, there are three ASM service framework functions: camera objects function,
camera control server function and video playback terminal function. Each function is described as
follows in terms of supported functions, supported information, and supported FEs:
– camera objects function: A camera objects function tracks an object of interest,
communicates the updated status of the object of interest to the camera control server
function, and transmits the audience-selected video to the video playback terminal function.
Based on these functional descriptions, the camera objects function includes three FEs of
object of interest processing, communication, and video transmission;
– camera control server function: The camera control server function manages the main
camera object based on the audience's selection, updates the camera object group based on
the tracking result of the object of interest, and controls each camera object using the
calculated pan, tilt, and, zoom values. Camera control server function contains three FEs of
main camera object management, camera object group management, and camera pan-tilt-
zoom control;
– video playback terminal function: Video playback terminal function receives the
audience's selection options, transmits the audience's selection information to the camera
objects function and camera control sever function, and plays the audience-selected video.
The video playback terminal function consists of two FEs of the audience's selection options
management and video play.
758 Rec. ITU-T Y.4412/F.747.8 (11/2015)
