In this paper, we propose an intelligent channelmultiplexed home intercom system based on Voice over IP (VoIP), which is different from traditional home intercom system. The transmissions of audio and video signal are both supported in the system. According to different functions, the system is mainly divided into two modules: VoIP module and master control module. VoIP module consists of drive...

The study aimed to estimate the cost-effectiveness of interdisciplinary community-based chronic obstructive pulmonary disease (COPD) management in patients with COPD. We conducted a cost-effectiveness analysis alongside a 2-yr randomised controlled trial, in which 199 patients with less advanced airflow obstruction and impaired exercise capacity were assigned to the INTERCOM programme or usual ...

The Northrop Grumman Cordless Communications System (CCS) is a state-of-the-art, wireless communications system targeted for tomorrow’s armored battlefield. Through a single, hand-held or body-mounted Personal Communications Unit (PCU), the CCS provides the soldier with access to a digital, fullduplex wireless intercom, as well as the capability to simultaneously communicate over a point-to-poi...

In this paper, an embedded system is used as a host for the intercom and chatbot server system. The controls door locks, cameras, buzzers, related devices through web services on WoT (Web of Things) to provide residents visitors with better functionality integrational services. This can greatly improve security convenience compared traditional resident uses instant messaging software smartphone...

---------------------------------------------------------------------***--------------------------------------------------------------------Abstract The new technology has the ability to transmit a voice over Internet protocol process networks by using an Asterisk PBX.In present day companies are implement to produce a different VoIP products to many features in market.This paper aim is introdu...

We have begun an exploration of how ubiquitous computing technology can facilitate different forms of audio communication within a family. We are interested in both intraand inter-home communication. Though much technology exists to support this human-human communication, none of them make effective use of the context of the communication partners. In the Aware Home Research Initiative, we are ...

This research proposes a chime sound generation support system to readily generate intercom chime sounds that are agreeable to individual persons and to associate the chime sounds with visitors. In the proposed system, an interactive genetic algorithm (IGA) is used. Based on the melodies created by users, chime sounds are automatically generated in accordance with rules. The effectiveness of th...