CentralizedHostControlSystem (CHCS) is the client/server based system developed to centrally store files of all clients, who wish to store at server machine   . Client should log on server using authorized user name and password. Fig. 2 shows that multiple clients logged on server machine and performing files related work. This model enhances the file or data transfer over the network and it is cost effective for the organization. System Administrator can see different activity of the client in statistics of server machine, if administrator find users doing anything wrong, then, they can block that user by IP address. Fig. 2 shows client doing different files related work like file uploading, downloading, deleting, making new folder, renaming the folder and deleting the existing folder.
Management of network resources and data flow is become more complex in today’s network. Companies invest big sum of amount in network infrastructure management, some of networking industries provide lot of services for network management. In order to manage network devices and infrastructure services network engineers and administrator have to possess lot of skill set, a company may use network devices like router, switch, firewall from different manufactures which means it has various network operating system depends on vendor of network device vendor, so the engineer Software Defined Networking (SDN) is a new approach in networking Technology, designed to create high level abstractions on top of which hardware and software infrastructure can be built to support new cloud computing applications. SDN is also referred to as programmable network, since it isolates control plane from data plane and provides an independent and centralized unit to control the
The establishment of a centralized monitoring system is an effective means to achieve the goal that no or fewer people are on duty. The function of the current 500kV centralized monitoring system is not enough mature to meet the re- quirement of the large-scale operation and large-scale maintenance model proposed by the State Grid. In order to fully utilizing the function of the centralized monitoring system, an improved design scheme is presented for the current 500kV centralized monitoring of the Jiangxi Power Grid. The improved centralized monitoring system is divided into three layers: monitoring center layer, operating team layer, and substation layer, which not only has the advantages of high security, high reliability, and easy maintenance, but also realizes the management model of regional control. So it can perfectly meet anti-misoperation requirement in the large operation and large maintenance mode, which can provide reference and guidance for the design of the 500kV centralized monitoring system of Jiangxi Power Grid.
A hierarchical approach could adopt for designing for the controlsystem of DC residential system, which is identified: primary, secondary, and tertiary control. Converters control is based on the voltage droop control to share power for DGs and be responsible for tracking DC voltage reference. The secondary control is for removing voltage deviation and reliable operation, the tertiary control is responsible for the economical and coordinated operation and host grid that related to transactive energy control. In this work, we mainly considerate the primary control. PV and WT are preferred to inject maximum power and operated in MTTP mode, however, the output voltages of DERs in common bus should be the priority. The bidirectional and directional converter are mandatory to adaptive the out voltages through adaptive droop loop. The equivalent circuit of voltage droop control for three parallel voltage source converters is shown in Fig. 2.
With the structural prerequisites of our model fixed, we define the dynamical model representing decision and scheduling processes. To test our hypotheses, we need an experimental setup, a conflict graph, that can expressed analytically as the result of a gen- erating procedure. This is not only necessary to be able to change the degree of hierarchy in the system gradually and purposefully, but also to measure the problem-solving per- formance across multiple different “benchmark scenarios” (Hernando et al. 2016). Our model, GCD for a given chromatic number, is executed in the following way (Hadzhiev et al. 2009; Windt and Hütt 2010): Given an initial distribution of colors, nodes are scheduled for an update according to the ’channeled excitation’ scheme from (Hadzhiev et al. 2009), where color changes in the neighborhood prompt an update. For such a color update of a node, the colors in the neighborhood are evaluated and the conflict- minimizing color is picked. If the node already has the conflict-minimizing color, no update is performed (with probability p) or a random color is selected (with probability 1 − p). The number of color changes r C (G) until the system converges to a fully solved
Integrated Building Automation systems is a centralizedcontrol and management system for all the services provided.As the increase in demand for comfort the technological development led to the evolution of a single point of control which reduces the work load and results in high class comfort of the user. The Market for Home Automation is growing rapidly. In the coming years, Home Automation Solutions for Comfort, Security and advanced communications will be an integral part of most homes and offers.
Abstract: In this research paper, an attempt has been made to design a Fractional order PID (FOPID) controller employed for centralized and decentralized frequency control in a restructured power system. The controller gains are optimized by Moth Flame Optimization algorithm (MFO), with Integral Time Absolute Error (ITAE) as objective function. The performance of the FOPID controller is compared with that of conventional PID controller under various contract scenarios. It is observed that FOPID as a frequency error damping controller, the steady state and dynamic performance of the proposed power system is enhanced.
The Committee on Harmonization of National Identity Cards was set up by former President Obasanjo to review existing ID card projects and recommend ways of integrating them into a single multi-application card. The Committee’s findings and recommendations are expected to compliment the efforts of the Committee on Consumer Credit, which was set-up to look at ways of establishing consumer credit system and infrastructure in Nigeria. The Consumer Credit Committee had earlier identified the absence of a unified and verifiable identity database as a negating factor to the development of consumer credit system in the country ([Com06]).
Temperature controlsystem structure used mostly for the upper computer is connected directly to the control thermostat decentralized bi-slayer structure, which has obvious flaws, such as high cost, not to scale and low intelligence. This article proposes a design scheme of in- telligent three-layer structure including thermostats, in- telligent logging devices, and upper computer; it can be called centralizedcontrol systems. Upper computer can read out data not only directly from thermostats, but also from intelligent logging devices. This scheme solves the problems in the application of bi-layer structure preferably, and it is also suitable for larger scale control
To control the above-described regulatory circuits, the pathogen must manage the relative levels of effector-bound and free CesT, Tir, and CsrA in a tight and dynamic manner. In this study, we show that tir translation is essential for the stability of cesT mRNA, a mechanism that minimizes deviations from the optimal Tir/CesT ratio in planktonic bacteria. By placing stop codons along the tir coding region, we revealed a direct correlation between the length of the translated tir portions and the levels of LEE5 mRNA stability. Accordingly, exclusion of the ATG start codon caused the maximal reduction in cesT mRNA levels. These data suggest that tir mRNA is intrinsically unstable throughout its length and that translation stabilizes it by preventing degradation. Our results concur with the notion that high ribosome densities mask RNase-sensitive sites residing within mRNA sequences and/or prevent RNase E from targeting mRNA 5= ends (34, 35). However, our ﬁndings suggest that inactivation of RNase E is not sufﬁcient to prevent the degradation of the untranslated LEE5 mRNA, implying the involvement of an alternative RNase activity.
We are proposing a Centralized bus controlsystem where a passenger needs to fill up the details and purchase a unique ID bus pass card having unique number. Thus the bus centralizedcontrol cell has the passenger’s details in their database. While collecting details the centralised Cell needs to collect the passenger’s photo, mobile number, ID proof & address proofs as well. Also this issued card should be valid for only certain time. In our case we are proposing the validity period for 1 year. After Expiry of the card, passenger needs to get the card renewed again in the Centralised cell by paying the prescribed fee. While preparing the data of the passenger, we can use Aadhar number (Unique ID issued by Govt of India ) so that unique identity of the Passenger is maintained & hence monitoring & maintenance becomes more easy.
A blockchain is a shared ledger sent via the internet in which transactions are permanently recorded without any reversal or alteration. A business transaction is permanently encoded into a block of digital data which has a unique identification. A user’s identity is concealed via complex cryptography represented only by a public address. The three main properties of the blockchain technology are: decentralization, transparency, and immutability. No central authority oversees a blockchain network. It is a democratized system since it is a shared and immutable ledger, and the data in it is available for anyone with permission to access.Centralized systems have vulnerabilities because all data is store in one location, making them easy targets for hackers. What can go wrong with a centralizedsystem? (1) Software upgrades can halt an entire system, (2) if the centralizedsystem shut down for any reason, no information can be accessed, (3) if the system becomes corrupted or malicious, the data can be compromised. By removing centralization, information is no longer stored in one network. Decentralizing the system will remove centralized storage, allowing users to communicate without intermediary of a third party.Bitcoin is a volatile cryptocurrency using blockchain. Bitcoin determines its value by supply and sdemand and is entirely decentralized, making it impossible for any one individual to control the entire supply.Blockchain may prove useful in different industries including: supply chain management, quality assurance, accounting, smart contracts, voting, stock exchange, energy supply, and peer-to-peer global transactions. Keywords — Blockchain, centralizedsystem, shared ledger, immutability, centralized storage, hackers, client-server model, bitcoin, supply chain management, quality assurance, accounting, smart contracts, voting, stock exchange, energy supply, peer-to-peer global transactions.
Java, Python and C++ Protocol buffers could be solution, but the usage of this technology eliminates the versatility of message format. There are also new opportunities to explore in way of remote configura- tion and client functionality control. In proposed sys- tem the reconfiguration of log level and component name are implemented, but further attributes and even remote functions could be added e.g. gathering infor- mation about remote system (utilization,source usage) dependent on client platform.
The logic that electronic program needs to control is quite basic. System electronic program are interfacing with; the compressor, air pressure sensor and solenoid valve. Figure shows flowchart of the logic steps that will be taking in electronic program. When the program starts up, the first thing that it does is check the tyre pressure. If the tyre pressure is low then sensor will the tyre pressure, it will compare with the set value of pressure. Then sensor will send signal to microcontroller. Microcontroller will send signal to relay to turn on compressor. Solenoid valve allow compressed air into tyre to inflate. This inflation process will continue until the pressure sensor detects that the tyre has reached the optimal pressure, and then sensor will send signal to microcontroller. Microcontroller will allow relay to turn off the compressor.
Abstract—After receiving a U.S. Department of Energy co-funded Smart Grid Investment Grant, Westar Energy implemented an economical and powerful distribution automation (DA) system that includes fully automated fault location, isolation, and service restoration (FLISR) functionality and volt/VAR control. The system described in this paper uses a centralized distribution automation controller (DAC) for automated feeder voltage profile optimization that remains fully functional alongside an FLISR system, which can change the power system topology. Additionally, the DA system provides intelligence and mitigation for miscoordination detection and overload avoidance.
In the past,power system was developed to transmit large amount of power at the high voltage from the generate station to the consumer.It required a centralizedcontrol,but currently the renewable energy source such as hydro,tidal,wave ,biomass,solar have been used as a source of the electricity and the new invention have been discovered when a micro hydro power plant,solar photovoltaic generators on roofs can be used near the consumer sanctuary.It will save the transmission of power due to long distance,which always have losses during it and besides it will be less centralized and more dispersed.This e-learning will guide student to understand about distributed energy,and a Macromedia Flash 8.0 is essentially need to learn because it used to esemble this project.
Managing a mixed combination of UNIX servers further complicates the challenge of enterprise- wide system access management. Each UNIX operating system has its own distinct set of native security policy tools, access control structures and administration procedures. If each system is managed separately, inconsistent policy enforcement and unnecessary overhead can result from incompatible security models of each operating system. Compliance adds to the burden of the security administrators that need to ensure policy enforcement and generate reports from all managed systems. Enterprise-wide host access management solutions are key investments to protect critical data, fulfill compliance needs and enable cost-effective administration.
The centralized coordinating controller requires actual measurements from the remote terminal units (RTU) of all VSC stations to determine the actual operation of the MTDC grid. These include the actual converter power and DC node voltages with their limit settings such as the maximum and minimum DC voltage and power limits, including any individual-assigned band DC voltage limits for specific control configurations, such as voltage margin and tri-band droop control. The implementation of the coordinated control is shown in Fig. 2. The communication system used for coordinated control is assumed to be reliable. In the case of loss of communication, the operation will still be stable, but without the desired power flow sharing between AC and DC grids, as primary control is autonomous. Rescheduling from coordinated control can be set to event-based or cyclic in the time span of a few minutes.
The Nodemcu esp8266 is a microcontroller designed by Expressive Systems. It has an inbuilt Wi-Fi module. Lua scripting language is used in this firmware. It is a Single-board microcontroller. It has XTOS operating system. It has 128KB memory and 4MB storage. It is SoC integrated with Tensilica Xtensa LX106 core. It is widely used in IoT applications.