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The traditional methods of wave measurement usually adopt various sensors to realize the collection of the field wave data, which are limited by the working life of the sensors and their performance; and their ability of anti-interference is relatively weak on site. Therefore, this paper presents a new method for wave measurement. In this paper, by taking advantage of the Beidou Satellite Navigation...
Containers have been used in many applications for isolation purposes due to the lightweight, scalable and highly portable properties. However, to apply containers in virtual network functions (VNFs) faces a big challenge because high-performance VNFs often generate frequent communication workloads among containers while the container communications are generally not efficient. Compared with hardware...
This paper introduces the design and implementation measures of the network video surveillance system based on embedded system. This system chooses S3C2440 which based on ARM9 architecture as an embedded processor and uses the stable and efficient Linux system as its operating system. Based on the ordinary remote network video surveillance system, a new algorithm for detecting moving abject is added,...
Cloud-based systems often face the problem of dispatching a stream of jobs to run on cloud servers in an online manner. Each job has a size that defines the resource demand for running the job. Each job is assigned to run on a cloud server upon its arrival and the job departs after it completes. The departure time of a job, however, is not known at the time of its arrival. Each cloud server has a...
In the process of battery charging, the influence of different charging methods on battery life is different. Traditional charging methods such as constant voltage charging, constant current charge, two phase charge, or three phase charge, these methods to a certain extent accelerate the aging of the battery. In this paper, based on the theory of Maas best charge curve and closed-loop control, a charging...
The paper proposes a gas turbine flowmeter with adding the technology of automatic gain control (AGC). This design is using MSP430F169 chip. The main function modules and test results of this are given in the paper. This design can solve the disadvantage of signal degradation caused by the external environmental factors when using the gas turbine flowmeter in practical application. This gas turbine...
The light weapons which using the laser stimulate shooting training technology began in the 1960s. It had been the simple training which using the ordinary laser simulate shooting until the 1980s. But since then,the laser shooting training technology has became more pluripotent,which can stimulate the weapons fire training of multiple armies.The training system has developed into tactical fighting...
At present, fieldbus has already become the hot spot in process control filed, on Behalf of the necessary trend in the development of process instrument. As the International Standard of fieldbus accomplished, the fieldbus product is surely accepted by the market for its consummate function and extrusive characteristics. Because HART realizes digital communication in the transmission of analog signals...
In this paper, we study the problem of how to dispatch the play requests to the cloud servers in a cloud gaming system. We show that the dispatching strategy of play requests may heavily affect the total service cost of the cloud gaming system. The play request dispatching problem can be considered as a variant of the dynamic bin packing problem. However, we show that the classical bin packing algorithms...
With the rising popularity of mobile computing and mobile communication equipment, the development of infrared data communication has entered a golden age. In this paper, the design of network control wireless intelligent infrared communication system involves computer, electronic and communication network, automatic control and GPS aspects of technology. Infrared communication technology takes its...
By sharing resources among peers in peer-to-peer network, application layer multicast (ALM) has been shown an efficient way to improve the scalability and reduce the latency of communication. To deploy ALM in peer-to-peer distributed interactive applications (DIAs), the property of many-to-many communication of DIA demands multiple multicast trees to be constructed in the overlay. Therefore, how to...
In DVEs, the primary task is to maintain a consistent view of the virtual world among all users. Multi-server architecture has been shown to have good scalability to support a large population of users in DVEs. One of the key issues in the design of an efficient and scalable Multi-server Distributed Virtual Environment (MSDVE) is the partitioning, which concerns with efficiently distributing the workload...
The primary task of distributed virtual environments (DVEs) is to maintain a consistent view of the virtual world among all users. Multi-server architecture has been shown to have good scalability to support a large population of users in DVEs. However, some of the servers' resources like CPU, memory and network bandwidth can still get saturated as the scale of DVE increases. In this case, state updates...
In distributed virtual environments (DVEs), maintaining a consistent view of the virtual world among all users is a primary task. Due to the resource limitations such as network capacity and computational power, the consistency of the virtual world cannot be guaranteed sometimes. In this paper, we try to address this problem in client-server-based DVEs by considering server side network capacity limitation...
In this paper, we propose an innovative debugging tool called MKtrace to help programmers identify bugs in multi-threaded programs on multiprocessor systems with little overhead. Unlike the traditional debugging tools, we use the trace log to analyze the cause of a crash or any abnormal behaviour. Bugs can be identified within the log file, not directly at run time. Also, a key advantage of MKtrace...
Snapshot technology is becoming prevalent to perform data protection and other tasks such as data mining and data cloning. To improve the performance and reliability of the traditional Linux LVM snapshot, we propose a novel cached dependent snapshot system, ESnap. ESnap decreases the total amount of data copy effectively using the data dependency among snapshot volumes. A new snapshot metadata organization...
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