Public Addressing System (PA) is an electronic sound and amplification distribution system with a microphone, amplifier and loudspeakers. PA systems are widely used to make announcements in public, institutional and commercial buildings and locations . In PA systems cost, quality and expansion are the major factors that affect the working and implementation of the system. The Zigbee based monit...

In this paper, we analyze the performance of clustered Zigbee wireless sensor networks (WSNs) with data fusion. Performance indicators at both physical (probability of decision error) and network (network transmission rate, throughput, aggregate throughput, delay, and network lifetime) layers are considered. Data fusion is carried out at the access point (AP) and, in clustered configurations, a...

for making life more comfortable, safer and more intelligent, a system for remote monitoring of smart home is proposed based on ARM and ZigBee. This system not only can centralize and monitor family affairs by gathering computer technology, embedded technology, sensor technology, and network communication technology, but also can meet the pursuit of high quality life in the information age by c...

Wireless sensor network (WSN) has attracted more and more attentions in the computer science and communication research community. It has appeared a great potential in numerous industrial applications. In this paper a wireless sensor network based on ZigBee protocol for the measurement system in grain storage was developed and tested as an alternative to the cable system, which showed better ef...

Resumen. Este trabajo trata sobre un sistema de monitoreo remoto a través de una pantalla inteligente para sensores de temperatura y corriente utilizando una red híbrida CAN−ZIGBEE. El CAN bus es usado como medio de transmisión de datos a corta distancia mientras que Zigbee es empleado para que cada nodo de la red pueda interactuar de manera inalámbrica con el nodo principal. De esta manera la ...

An environmental monitoring system based on ZigBee wireless sensor network technology was researched in detail in this paper. Firstly, the technology working principle of ZigBee and its characteristics were introduced, and the characteristics of wireless sensor network and its application advantages were analyzed in comparison with the traditional network. Secondly, the overall scheme of the en...

With the development of industrial automation technology, the limitation of traditional cable control network has become increasingly prominent. Consequently, establishing a reliable data transmission network becomes a critical demand in industry. Increasingly, companies developing monitoring and control applications in industrial and commercial building environments are looking to wireless tec...

Gerade in den letzten Jahren kommen mehr und mehr Anwendungen auf Basis von drahtlosen Sensornetze auf dem Markt. So gibt es in den USA die Bestrebungen drahtlose Sensornetze für die Energieüberwachung (smart monitoring) einzusetzen, aber auch in der Hausautomatisierung, dem Gesundheitswesen, u.a. sind die Netze bestehend aus vielen kleinen Sensorknoten im Gespräch. Der de-facto Standard bzgl. ...