The attribute access methods of MAC layer in wireless communication network is researched. Aiming at conquering the problem of the shared ZigBee wireless channel resulting multi-channel device conflicts when using the data channel at the same time, therefore the protocol is improved and a method used to access the properties of ZigBee is proposed, and this method can be achieved to manage effec...

A ZigBee-Based Intelligent Household Electricity Monitoring and Control Information System (ZBEMCIS) is proposed. The system is composed of hardware and software. The hardware consists of sensors, a ZigBee-based gateway, and a client, while the system software is divided into three layers: the data service layer, the logic layer and the user layer. The sensors collect the data from electric equ...

Resource accessing is one of the key issues in Cloud Manufacturing, which is a latest mode of network manufacturing. In this paper, a framework of resource accessing in Cloud Manufacturing based on ZigBee is proposed. In the framework, an improved AODVjr routing algorithm of ZigBee is studied. In the improved routing algorithm, limitations of the transmission direction and hops of RREQ packet a...

This paper proposed a new smart home system that is designed based on ZigBee network and STM32F407 microprocessor. The system architecture, the basic circuit diagram and the flowchart of the software system are also provided. This smart home system integrates home appliances, lighting system, entry guard system, smoke sensors, automatic curtains and other equipment by connecting them to a ZigBe...

License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. IEEE 802.15.4, commonly known as ZigBee, is a Media Access Control (MAC) and physical layer standard specifically designed for short range wireless communication where low rate, low power, and low bandwidth are required. This makes ZigBee an ideal choice when it c...

Ambient assisted living environments are full of human attention demanding applications. The introduction of wireless solutions in the assisted living area brings convincing advantages in terms of staff burden reduction, observation reliability and treating measures response time. The paper identifies some typical application requirements. Applicability analysis of existing solutions is made. Z...

This paper presents a Maximum Likelihood Location Estimation (MLLE) algorithm for the home network environments. We propose a deployment of cluster-tree topology in the ZigBee networks and derive the MLE under the log-normal models for the Received Signal Strength (RSS) measurements. Experiments are also conducted to validate the effectiveness of the proposed algorithm. key words: ZigBee, locat...

In view of the traditional faults of wire network that complex wiring and costly wired network, a set of Zigbee wireless network technology based on the temperature and humidity data acquisition and control system is designed in this paper to improve the environmental temperature control in piggery. The Zigbee system which can monitor the real-time information of temperature and humidity in pig...

Severe natural conditions and complex terrain make it difficult to apply precise localization in underground mines. In this paper, an anchor-free localization method for mobile targets is proposed based on non-metric multi-dimensional scaling (Multi-dimensional Scaling: MDS) and rank sequence. Firstly, a coal mine wireless sensor network is constructed in underground mines based on the ZigBee t...