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Wireless sensor networks have become one of the important research fields. It has a wide-range application background. This paper through to the research of wireless sensor network development present situation and the tendency, the coal mine gas wireless monitor present situation, the ZigBee technology, proposed a wireless sensor network monitor system solution based on the ZigBee technology, which...
Greenhouse agriculture is widely implemented to improve agricultural productivity. It requires monitoring and controlling the environment for the growth of the crops. In this paper the design of monitoring system is introduced and the system is experimentally investigated. The system is composed of wireless transmission network and monitoring platform. ZigBee wireless sensor network has been built...
This article describes the toxic, flammable software and hardware design methods of gases wireless monitoring network nodes based on sensor array. By collecting signals with gases sensors and receiving and emitting data with wireless sensors network, we can measure the gas concentrations. We describe the toxic and flammable gas concentration measuring circuit and illustrate the theory. We choose the...
A Wireless Sensor Network (WSN) for monitoring of animal behaviours has been proposed. Preliminary results are presented here in order to demonstrate the potential of the system, which is aimed to investigate wild life of two species of monkeys in their natural habitat in the Mexican jungle. The novel platform comprises sensing nodes capable of measuring and recording the position, posture and activity...
This paper presents the design and implementation of a wireless monitoring system for building smart room architectures in home environments. The proposed system consists of wireless sensor nodes and actuator nodes which are organized into a monitoring network by ZigBee protocols. A base station and some general wireless nodes have been developed to form a prototype system. Various sensor and actuator...
In this paper a novel system to monitor warehouse with wireless sensor networks is proposed. The system consists of wireless nodes and monitor. Wireless sensor nodes collect temperature and humidity information and send to monitor. Monitor provides GUI for warehouse operators. The design of wireless nodes and monitor are introduced in detail.
Transportation systems have emerged into a critical underlying structure, heavily sustaining all industrial sectors. Along them, monitoring systems were developed in order to increase the quality of the provided services. The research areas in this field have split in two directions: monitoring systems for tracking the products from delivery source to final destination, including temporary storage...
Coverage is a fundamental problem of WSN, which reflects the performance of sensing in wireless sensor network. The high density network is made up of low-power tiny sensors. At the guarantee of area coverage, how to prolong the lifetime of network is a problem needs solving. And the method of choosing part of sensors to perform the sense task is adopted for full area coverage to achieve the object,...
The wireless sensor network has promising future in the environment monitoring, such as river flood watching, ice storm watching, mine flood watch, forest fire watching. The wireless sensor network can observe the parameter such as the temperature, humidity for both underground and aboveground mine. During our experiment of the wireless sensor network in the river of Ontario, we gained a series experience...
Wireless sensor network is very useful technology for real-time slope health monitoring under remote and hostile environments. We design a 3-level of wireless sensor network hierarchy which consists of data collection layer, data transmission layer and remote safety monitoring center. Data collection layer includes information collection nodes, route nodes and coordinate nodes. Data collection layer...
Automatic and real-time monitoring of the deformation and instability of slopes and crags is an effective means to predict landslide and other geological disasters. It helps grasp the disaster rules, make a timely qualitative or quantitative safety evaluation, and minimize the disaster occurence and damage. The ZigBee-based WSN (Wireless Sensor Network) technology was used to real-time sample and...
This study presents the design and development of a wearable ubiquitous healthcare monitoring system using integrated electrocardiogram (ECG), Photoplethysmogratphy(PPG), Skin Temperature and Accelerometer etc. In this design, non-intrusive healthcare system was designed based on WBAN for wide area coverage with minimum battery power to support RF transmission. In this system, WBAN(wireless body area...
Wireless sensor networks are often only used to transmit monitored data to a central processing unit. However, they also offer the possibility to establish local intelligence and allow localized problem solutions. Existing monitoring systems have the following main drawbacks: centralized architecture that requires expensive infrastructure to run it, centralized decision making that makes reactions...
Current society, Emergency Management System (EMS) widely uses Wireless Sensor Network(WSN) to assure safety. If emergency happens, in dynamically changing environment, real-time property of emergency information should be assured. But conventional approaches which are based on static situations and centralized management can not satisfy this requirement. Thus, we introduce community. Community is...
Wireless Sensor Network (WSN) is widely used in Emergency Management System (EMS) to assure requirement of safety in current society. For centralized management, it is difficult for conventional systems to assure the real-time transmission of emergency information under rapidly changing situations. Thus, based on the Autonomous Decentralized Community (ADC) concept the main route for emergency information...
Design of a wireless sensor network based on Zigbee/IEEE802.15.4 is issued. The network is used to monitor the safe state of intelligent community and give alarm. Each sensor node in the system is composed of sensors and an integrated chip CC2430. The GPRS technology is used to complete data exchanging between remote monitoring center and wireless sensor subnets. This system is an application in intelligent...
Wireless Sensor Networks (WSNs) have inherent and unique characteristics rather than traditional networks. They have many different constraints, such as computational power, storage capacity, energy supply and etc. Energy aware routing protocol is very important in WSN, but routing protocol which only considers energy has not efficient performance. Therefore considering other parameters beside energy...
Wireless Sensor Network (WSN) is widely used in Emergency Management System (EMS) to assure requirement of safety. If emergency happens, real-timely transmitting emergency information in dynamically changing environment should be assured. Therefore, community is introduced to solve this problem. In this paper, to achieve high assure, autonomous community coordination technology is proposed. Each community...
A new cable wireless monitoring temperature scheme is proposed, which can monitor cable parameters of various cable, and can be monitored dynamically and transmitted to the dispatch center through the network which consisted with ZigBee network and CAN bus. Then, cable failures early warning function is realized. Simulation and piracies proved that reliability and flexibility of the system is increased,...
This paper introduces the development of an effective low cost monitor system to assist the normal function and the maintenance of Overhead Contact System(OCS). The whole system contains a remote monitor centre, some local monitor centres and lots of monitor modules. All the communications are through wireless network. The paper also shows how such a system could be used for OCS monitor, and the detection...
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