Earticle

The anti-rolling tank swing bench is a typical hydraulic position servo system. Its function is to simulate the ship roll motion and to verify the performance of the anti-rolling tank. Generally, the PID control method can achieve an ideal control effect. But the uncertainties, such as the couplings and the nonlinearty of the swing bench, make it difficult to establish the precise mathematical model of system. During experiments, the different disturbance torques are generated according to the different dimension scales of the anti-rolling tanks. Changes of the natural characteristics of the system are caused by changes of load, and the fixed parameters of PID controller are difficult to continue to ensure a good control effect. In order to reduce the influences caused by the factors mentioned above, a BP neural network PID control system based on virtual instrument LabVIEW is designed. By simulating the responses of the system in real time control, the verification tests using actual system are avoided. Finally, the experiments of swing bench are carried out. The results show that the controller can ensure the control accuracy and stability. The parameters tuning process efficiency is improved. The operation is convenient. The data acquisition process is simple and practical.

Starting with architectural & urban concern to sustain the community, this study includes behavior and daily life of residents in Seongnam City. Despite the most of residential areas are located on steep slope, there have been autonomously formed Neighborhood Streets in their Spheres of Living. And the humane & social organizations of residents are integrated within these physical spaces and these have been the very city compositional factor so far. In order to understand the Neighborhood Street characteristics of residential areas in Seongnam city, study areas are categorized into Four : the first one in residential area, the second one in semi-residential area, the third one near general commercial area, and the fourth one changed by large apartment block, depending on their locational relations with district use. So, Taepyeongdong, Sanseongdong, Sinheungdong, Dandaedong are selected as the representative of each areas. This study is to investigate ①Road system (about 6m road) ②District use ③Relation of Neighborhood Facilities’ location and distribution ④ Formation time of residential area. We decide to take these factors as main criteria of analysis and draw analytic maps of reciprocal relations for daily Neighborhood Facilities in 4 dongs. Through this comparative study on Neighborhood Streets of residential areas, it is found out that in order to achieve sustainable urban residential area regeneration for the original part of Seoungnam City, it is necessary to keep and support existing communities with its Neighborhood Streets. And we believe that the enhancement of these Neighborhood Streets will improve the true quality of residents’ daily lives, which are closely integrated with these. Therefore, we strongly propose the small scale Regeneration Plan of each residential blocks with improving these Neighborhood Streets for pedestrian residents.

Due to the wide application of range-based location algorithm for received signal strength, and according to the requirements of high accuracy and low power cost in the location algorithm for WSNs, in this paper, a Bayesian optimization RSSI and an indoor location algorithm for ILS were introduced by setting RRS ranging as location framework. Firstly, through analyzing the RSSI-based ranging model, an indoor location model was introduced. Secondly, in view of the influence on RSSI value caused by the indoor environment,the Bayesian probabilistic model was adopted to process the RSSI measured value and to screen out the "big probability" of RSSI value. Thirdly, Obtaining accurate measured data by estimating distance using method of minimum mean square error. Finally, Estimating the node location using least square method, and according to the TelosB node of Telos Series produced by company Crossbow, the ranging experiment can be designed and thus groups of experimental data were obtained and analyzed..The experimental results showed that the proposed location project greatly increased the location accuracy and decreased the computation complexity, and has obviously more advantage of running time over other location projects.

This paper throws light on the behavior of the UART in response to the variations in the junction temperature. Analysis has been done to find the most ideal temperature range for the operation of the UART. After all the calculations, deduction comes to a point that lowering the temperature values increases the efficiency of the UART significantly since the losses due to the leakage power are reduced to a minimum value when the temperature is decreased. Significant reduction in the percentage of leakage power is seen as the temperature is lowered. Implementation has been done on the FPGA generations Virtex-6, Virtex-5, Virtex-4 using XILINX simulator and Verilog Hardware Description Language. Different reduction percentages have been observed within a range of 8% to 37.4% for the leakage power and 16.8% to 69.3%for the ambient temperature as the results are obtained for frequency values of 1GHz and 1MHz. Thus various power loss parameters have been studied to get the best energy efficient UART.

Method of cathode protection is employed to slow down the corrosion of terrestrial pipe. This paper aims to develop a system to monitor the terrestrial pipe cathode protection equipment to wholly track the operation status of buried pipe timely. The monitoring system integrates technology of wireless sensor networks, GPRS network and Internet not only to collect the cathode potential data in time and realize remote data transmission but also to regulate the guard mode of cathode protection on demand. Optimization mechanisms are adopted to effectively lower the energy assumption and to ensure data transmission reliability, from architecture design, selection of power saving hardware components, implementation of reliable network traffic mechanism including hierarchical network topology with least-complexity cluster head shift strategy, TDMA protocol with auto-adaptive resending scheme, work-on-duty with radio-awaken mechanism and so on. Trial running of the system has published good results with 96% or higher success ratio of data transmission, low power saving and power balance. In all, this system can meet the requirements of timely detecting physical malfunction of terrestrial pipeline and controlling field monitoring system on demand.

Green IT practice is essential to minimize electricity bill. We have done our analysis on power consumption of computer. We have stated different management policies for reduction in energy consumption. Energy Star (ES) programme of the United States promotes energy efficiency in electronics products that provides an exceptional productivity as compared to the old or traditional systems. Energy Star program has been adopted by many countries to make a move towards Clean and Green environment. ES labels can be easily found on electronic appliances at homes, offices, buildings and many other places. Depending upon the devices, using these policies can result between 30%-90% of less power consumption. In our analysis, we got a reduction of 40% less power consumption in computers after implementing management policies. In this work, we are estimating power bill, and analyzing its economical feasibility along with that we are proposing a plan to reduce power consumption of academia and Institute. We have also discussed about management policies for disposal of e-waste.

This paper mainly discusses the evaluation system for the users of the new digital home shopping service based on HD (High Definition) -interactive shopping platform. The suggestion is to change from the channel with playing functions to the column with interactive functions for public goods since HD -interactive digital shopping is a Chinese government policy for three networks convergence, and it is a new model to provide the home shopping directly and realize economic objectives for telecom operators.

In order to detect the wavelength drift of FBG (fiber Bragg grating) sensors, the real-time demodulating system based on tunable F-P filter (TFPF) was built. The optical parts of the demodulation system include broadband optical source, TFPF unit, reference grating model, sensing grating array, and couplers. The electronic parts of the demodulation system consist of AD converting unit, DA converting unit, field programmable gate array (FPGA) unit and human-computer interaction unit. With the high-speed data processing capacity, FPGA was utilized to realize digital logic circuits of the demodulation system. It includes resetting unit, phase locked loop (PLL) unit, driving TFPF unit, detecting keys unit, LCD displaying unit, FIR filtering unit and data calculating unit. The demodulating system has such features as high reliability and speed, instantaneity, and programmability. It can satisfy the requirements of wavelength demodulation of FBG sensors in practical engineering.

In the transitional period of Urbanization, the urban landscape and its aesthetical experience became one of research priorities. Design and develop professional interactive information system is one of the most important thing for urban landscape design. The research uses PHP as core technology, uses DW which is the integration of MySQL-related technologies as developing tools, to set up a integrated system platform based on Apache, MySQL and PHP. It is a dynamic interactive information system of urban landscape based on Web technologies. This article described the structure and functions of the system, explained design methods of the database and application. The construction and application of the system can integrate landscape information of the transitional period of Urbanization, such as item information, engineering information, education information and artistic information, offer a human-machine interactive communication platform based on P2P mode (point-to-point). It will become innovative power for the development of urban landscape industry.

As smart agricultural demonstration park construction is inevitable for the development of Chinese agricultural modernization, it is very necessary to study the construction scheme of smart agricultural demonstration park. According to the demand of agriculture production and the development tendency of smart technology, this article, regarding perspectiveness, economy and efficiency as basic principles, following a basic approach of system integration, has built a constructive framework. This framework is composed of integration platform, infrastructures, demonstration modules and application platform. The paper detailed discusses the construction scheme of smart infrastructures, smart production modules, file management modules, smart website modules and smart business modules.

We studied the standard of HL7 message for healthcare system which can support diagnosis for healthcare provider and user. We studied the connection of standard medical devices, i.e., continua health alliance under the Android 4.x Bluetooth HDP (Health Device Profile) environments based on ISO/IEEE 11073 which is standard of information exchange among health device agent and service. And also we studied smart healthcare system using smart phone depending upon current trend. This system was studied on the environment of ISO/IEEE 11073 and HL7 standard.

In order to improve smart home’s wireless control measure and overall level of smart home, the current concerned problem is to design a wireless network protocol that is low-cost, easy to develop and oriented to the field of smart home. The paper puts forward the general framework of smart home’s wireless control on smart home’s wireless control protocol and specific applications, and designs hardware and network structure for this system. By combining with design and algorithm implementation of repeaters, the paper improves WSN routing protocol, which is based on applications of smart home, and geographical routing protocol, which is appropriate for this scene. Meanwhile, the paper applies double bounce greedy algorithm and routing void mark to improve the problem of routing void. In this way, it avoids from the generation of routing void to the greatest extent. Through the simulation experiment, it can draw a conclusion that comparing with GPSR protocol and GEAR protocol, the improved protocol has a great improvement on node energy consumption and effective avoidance of routing void. It makes network performance improve to a greater degree. Before deploying smart home’s network nodes, it should pay more attention to deploy the number of nodes. In appropriate node deployment, better network performance of smart home can be obtained.

The traditional tourism system’s information inquiry is incomplete, images are not intuitive and the results are not three-dimensional. In order to solve these problems, this paper proposes system management design and application based on tourist routes inquiry. Firstly, based on MAP technology, it achieves a cross-check of space and attribute data, then explores the knapsack problem through the genetic algorithm, making the travel route arrangements more reasonable and providing latest shareable maps for tourists, and finally conducts simulation experiment on system model. The results show that compared with the traditional one, this tourism management system’s information inquiry is faster, and also its inquiry results are more three-dimensional and visual. It is much more convenient for tourists with practicality.

In this paper, the author suggests a binding protocol which enables users to use public medical devices as if they are their own medical devices through IoT Healthcare. Binding protocol provides customized real-time transmission function enabling interwork between mobile phones, medical devices and monitoring services. In particular, the author defines a protocol to support streaming date transmission, and verifies the operating effectiveness of the protocol by measuring the transmission time through simulation.

Social networks have become extremely popular in recent years. A new requirement of connecting physical devices into social networks is emerging gradually. In this paper, we propose a case study to explore the effectiveness of connecting devices into mobile social networks for status monitoring and controlling. In our work, we developed iGreenhouse, a greenhouse can post its environment information automatically to the most popular mobile social networks Wechat in China, and Wechat users are able to remotely control the devices in the greenhouse easily. Experiment results show that our proposed approach is feasible, cost-effective and flexible. Therefore our solution can provide an alternative ubiquitous platform for monitoring and controlling of connected devices.

This paper presents a low-cost and flexible solution to control and monitor home appliances using Smart Plug devices. The Smart Plug is a power switch which can be accessed via WiFi connection. It integrates two temp sensors, a current sensor and an IR-emitter. Users can plug devices into the Smart Plug to remotely switch power on/off, get information of device’s power consumption and ambient temperature, and eventually control the nearby devices using the integrated IR-emitter. There are two ways to access Smart Plug, that is, either connecting it directly in WiFi Ad-Hoc mode or connecting it with a router in WiFi infrastructure mode and accessing online with IP-connectivity. The paper utilizes RESTful based Web services in which the overall system architecture is client/server model and the Web client uses JavaScript and Ajax to transfer data. An Android-based Smartphone application employs standard operations such as Get and Post requests that return responses to communicate between the remote user and the Web server. Depending on the use cases, users can use Smart Plug as lighting switch, timing switch, infrared controller and temp regulator.

Bed Activity Monitoring System (BAMS) monitors and assess the mobility of people on a bed. This is a useful and critical application for patients with mobility issues after stroke or traumatic brain injury. The system is based on processing of data collected from a piezoelectric pressure sensor for discriminating mobility patterns. There are four different types of motion that were simulated by non-patient volunteers and data was collected. In this paper, two methods were used to extract feature parameters (autoregressive and cepstral coefficients) from the acquired data. Two classification algorithms, Euclidean Distance Measure (EDM) and Weighted Distance Measure (WDM) were used to classify and discriminate the mobility patterns of normal person (healthy subject) from people with mobility issues (patient subjects). Experimental result shows that the recognition rate using cepstral parameters was more effective compare to autoregressive parameters.