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Environmental pollution problem has been a great threat to the development of social economic and human's daily life. The development of the Internet of Things technology provides an effective method for solving the environmental pollution problem. Hence, it is very important to construct a real-time monitoring system in order to solve the problem. In this paper, the hardware system is built to collect...
In this paper, the containment problem for multiagent systems with nonlinear uncertainties under directed communication topologies is investigated. Based on the outdated information, distributed containment controllers combined with observers and relative output information of neighboring agents are designed, under which the states of all the followers will asymptotically converge to the convex hull...
This paper addresses the problem of fixed-time consensus algorithm for the second-order multi-agent systems with bounded disturbances. The proposed fixed-time protocol can ensure a fixed-time consensus. First, the control law is designed to make the true speed track the virtual speed in a fixed time based on the fixed-time control method. Then, based on the backstepping design method, the virtual...
Open Source Software (OSS) is distributed and maintained collaboratively by developers all over the world. However, frequent personnel turnover and lack of organizational management makes it difficult to capture the actual development effort. Various OSS maintenance effort estimation approaches have been developed to provide a way to understand and estimate development effort. The goal of this study...
Shared-memory multithreaded programs running on chip multiprocessors (CMPs) tend to be nondeterministic. Two-phase deterministic record-replay is an effective approach to solve this nondeterminism. This paper proposes an efficient deterministic record-replay named Fly Replay. During recording, Fly Replay logs not only the right dependencies of memory races but also the pseudo dependencies constituted...
RFID has received considerable attention within the healthcare for almost a decade now. The technology's promise to efficiently track hospital supplies, medical equipment, medications and patients is an attractive proposition to the healthcare industry. However, the prospect of wide spread use of RFID tags in healthcare has also triggered discussions regarding privacy, particularly because RFID data...
In the recent years, with the gradually deep researches of the Internet of Things (IOT), the DNS based on identity and IP (IIEDNS) also attracts people's attention. The major task of this paper is to solve the problems of security-authentication. Since the traditional identity-authentication technologies couldn't satisfy the needs to the identity and IP authentication of the IIEDNS, we propose an...
The diamond relay network is an efficient cooperative networking configuration in which the source node cooperates with two selected neighbors. For such networks, we investigate the impact of the relay positioning on the performance. In particular, considering an opportunistic protocol based on the use of relaying buffers, we provide sets of constraints which, when satisfied, give sufficient conditions...
In recent years, many clustering algorithms have been proposed to solve the problem of routing. However, many of these algorithms have the problem of uneven load of cluster heads. In this paper, we present an algorithm - the maximum balance cluster head energy consumes of routing (MCR) - to solve the above problem. In our proposed MCR algorithm, when ordinary nodes receive broadcast information from...
Bluetooth technology can provide low power, low cost and high security short range wireless access. The Bluetooth educational lab was constructed in this paper. More than 2 Bluetooth educational boxes together with the educational software can construct a Bluetooth educational lab. The designed courses can be divided into 5 classes: realization experiments, fundamental experiments, operational experiments,...
Peer-to-Peer based Web service discovery systems have shown the high scalability and availability provided by high connectivity and dynamic accommodation. However, a serious difficulty in concurrent designing of such unauthoritative and decentralized controlled systems is how to deal with the privacy concerns and policy enforcement in such systems which may contain a considerable ratio of dishonest...
Software auto update for IP set-top-box is an important feature for IPTV system deployment. A SNMP based management model has been developed to meet the requirement of efficient and reliable software auto update on a prototype of Internet protocol set-top-box (IPSTB). The model implements a distributed server-client network updating scheme, which includes an embedded SNMP agent running on IPSTBs,...
Agent-based system have been considered to be a powerful methodology in developing competent manufacturing management systems controlling the whole manufacturing cycle in a distributed manner. This paper reviews the technologies about ABS and proposes a generic reconfigurable agent model (GRAM): an XML-based framework implemented by Java. This model excels in its flexibility and adaptability to reconfigure...
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