GADGET WORLD

Loan is a word that indicates the meaning such as an amount taken from the financial institution by giving some proof that is equal to that amount. There are many types of  loans one among is Cash loan, for every one in the life some unexpected expenses will be arised so as to fulfill the expenses the cash loan may be taken from the banks. Some other situations are to fulfill the desires such as buying home, buying the car, buying two wheeler etc., these are some of the cash advances. So the cash loan can be easily given if all the required proof for the financial institutions are correct. The financial institutions charge some amount of interest on that amount which was given as loan, so that lended interest amount must be paid monthly so as to use the loan facility, if  we don’t pay then the proof mentioned will be acquired by the institution. So the cash loans which are given by many financial institutions, deciding which institutions gives the appropriate interest and provides safety and other required features. So the cash loans in some institutions will be provided with in a day or within hours, for salary people it is so easy to have loan. Thus the cash loan is made by the needy person.

In day to day life of the humans anything can happen, so the people who are fully dependent on others should be done something for their rest of the life. For that some security measures must be taken by predicting the future accidents. Since for example when a men or women met with an accident unexpectedly then if they need money for a surgery we can have the health insurance so that the money spent for it can be refunded. Akin to that many insurance policy were present in the organizations. Some cheap life insurance were also present, that requires the applier of the insurance to pay some particular amount periodically to them, so that it can be used. Some of the incidents like death of the blood relations, unexpected accidents, any type of risks related to the life, insurane is available. For these reasons there is an insurance for vehicles also, in case of theft or lost of the vehicle the amount will be refunded.  It can be easily applied and soon become a member of it, since many agents were also present to guide regarding the insurance. Type of scheme which is suited can be chosen and agreement is made to provide the service of the scheme in proper situations.

In any vehicle today needs some kind of cooler system in order to pump out the hot air outside and make the engine more efficient. In many vehicles the operation takes place by combustion process, It is an important process in which the fuel is converted into the electricity, which gives the energy to the engine so that the performance will be intact. In order to have the same efficiency air filter is needed, It has the work of filtering the dirt particles by placing it in the near of engine. The air filter may be made with many types of materials according to the vehicle, So it avoids the dust particles and also the another trash particles which are mixed in the air and allows the lower temperature air to penetrate inside of it, So that the engine works more efficiently and life period would also be increased. The air intakes system that is present inside the vehicle takes the cold air present outside into the process so that it cools the engine thereby compensating the heat produced in it, Which balances the combustion and keeps the whole system more efficient. Thus the air intake system will be mandatory requirement in any four wheeler vehicle.

Rugs are the materials which are used as the cloth during winter season, due to the thickness of that it will not allow the cold to enter into our body. So in most winter areas and other regions of cold prefer to use Rugs. There are many types of rugs according to the cost that is from cheap Rugs to expensive range rugs.  Depending upon the length and width of rugs the cost of the rugs also differs. Since as the dimension of rug is increased the work and cloth increases so the cost also increased. Rugs can be classified according to their shape and also the size that is dimension of the rug, and there are also some of the different cloth rugs that are called as Area Rugs which are recommended by users. Rugs are also differed by their colors also. The Rugs are material cloth which is imported from foreign countries also, many kinds of work and also designs are made on the cloth according to the cost and user desire. The cost of rug is gradually decreasing nowadays, since the supply is more. There are different types of rugs such as the traditional rugs, highly synthetic rugs, more thickness rugs, silk rugs, wool rugs, highly contemporary rugs, head knotted rugs etc., Some of the colors present in the rugs are blue, navy and blue, green, gold, violet, creamy color, red, ivory, chocolate and some other combination of colors are also used. Some of the different shapes present in rugs are rectangular shape of rugs, square shaped rugs, diamond shaped rugs, circle and sphere shaped rugs etc., as per the requirements of the user and also the cost afforded on that. Some of the rugs were used as the mat and also carpets and also some rugs are used as table cloth on meeting tables and also dining tables.

Radio Frequency Identification (RFID) is an evolving technology that uses radio frequency as the medium of communication. The RFID tags used here are the passive tags that need some external source to provoke the transmission. The RFID Reader reads the data from the tag converts into byte streams and sends the data to the system through RS232 serial interface. Radio Frequency Identification (RFID) is a new generation of Auto Identification and Data collection technology which helps to automate business processes and allows identification of large number of tagged objects like books, using radio waves. The existing bar-code system in the libraries has few disadvantages such as line of sight, lesser tag life time, non-traceability of books etc. RFID based Library Management system (LMS) overcomes the above said disadvantages and allows high-speed transaction flow for the library. It also proves immediate and long term benefits to library in traceability and security. The proposed system is based on RFID readers, supported with antennas at gate and transaction sections, and library cards containing RFID windings which are able to store information that can be read even without the physical contact with the help of radio medium. This project represents the various functionalities that can be performed in a library with the help of this RFID technology.

In recent years RFID technology has taken upper hand in various sectors such as inventory and supply chain. This technology is slowly replacing the existing bar-code systems that prevail in libraries of today. This will prove to be a replacement in terms of reading distance, reader orientation sensitivity, non-line of sight of the tag, speed patron self check, timely inventory management and security. The bar-code system used in libraries is extremely time consuming and labor intensive. This problem results in delayed inventory management and demanding practices to staffs for handling the materials. To overcome the above said problems in the existing bar-code system, we go for using RFID technology. RFID tag is windings that are placed in every book and it is read by a RFID reader. This system proves to be a replacement for existing bar-code systems in terms of security and book traceability.

The development of this project is based on Paul Golding and Vanesa Tennant “Performance and Reliability of Radio Frequency Identification (RFID) Library System” where they have concentrated on the factors that affect the performance and reliability of the system by conducting series of tests. Series of tests being conducted on tag placement, reader orientation, reading distance etc for its implementation in very large scale. Our project concentrates on the working of RFID that includes the basic functionalities that are carried out in any small scale library system.

The default basic services In the RFID Library Management System, Initially RFID Tag which is pasted in book is placed near RFID reader.RFID Reader reads the TagID and Enters into Main-Menu. In Tagging Module, both the book and member details to be stored into database. In Shelf Management , the category has to be selected then reader has to be moved across the rack, if any misplaced book is there then alert message will be displayed. In Auto-Theft detection, reader is continuously scanning the exit area, if any unregistered book taken over it then Alarm is generated.In check-in/self check-in, no of books to be returned must be entered then it checks for any fine to be paid if so prompts the user to pay fine else returns successfully.In checkout service, Member ID and no of books must be entered it checks the condition no of books (<=3) if so then it is issued else reminds user to take only 3 books by prompting user a message. In Book Availability Member has to Enter the Book-name to be needed.  After Entering the Book-name, the matching book details will be listed out. If Book  is not available then an alert message is prompted to Member

RFID technology is to provide high-speed transaction flow for the library. They can be adopted to speed up the self check in/out process, to control the theft and to ease the inventory control in library. RFID (Radio Frequency Identification) uses radio frequency for the communication between tag and the reader unlike bar-codes that uses light as the medium. The bar-code that is used in current library systems carries some disadvantages with them such as non-line of sight, range of the reader, slow inventory management etc. The RFID tag need not be visible for detection. It can be read even when it is embedded in an item, such as in cardboard cover of a book. Also the tag can store additional information other than book number such as author information etc, while the barcode label is limited to just an identification number. RFID technology could effectively replace the bar-code systems in terms of faster inventorying and security. Faster inventorying is achieved by having reader that is to be moved along the stacks to find out any misplaced book is found. Security is achieved by having a RFID reader as sensors at gate level to find any theft when a book without prior issuing is taken out.

A state is set to be safe if the system can allocate resource to each process in some order and still avoids a deadlock. In resource allocation graph algorithm, there is a claim edge which indicates the future use of process to that resource. Other edges are assigned edge, claim request edge. Allocation of resources for the claim edge can be made only when the allotment doesn’t form a cycle in graph which leads to deadlock. Bankers Algorithm in which there are two algorithms they are: safety algorithm and resource request algorithm. Some data structures  in bankers algorithm are Work, Available, Allocation, Need, Max. In safety algorithm the order in which system is going to be allocated must be tested by virtually allocating it, so that order of allocation which doesn’t lead to deadlock is called as safe sequence. In resource request algorithm according to the safe sequence which is tested in safety algorithm the allocation is made in the system. So on allocating it checks the data structures such as available = available – request, Allocation = Allocation + request, Need  = Need – Request.  If resultant resource allocation state is safe the transaction is completed and all processes are allocated with resources accordingly.

Deadlock is a condition in which one process is depending on the other process which forms a circular dependency. The necessary conditions for deadlock to occur are as follows: 1.Mutual exclusion ( When one process is allowed to execute then no other process should be allowed to execute till it finishes the execution. 2.Hold & wait, 3.No preemption, 4.Circular wait. Resource Allocation Graph in which it pictorially represents the status that which resource is allocated to which process. If single instance is there, then a cycle is there it definitely leads to deadlock. If more than one instance is there then there is a cycle it indicates that there may be deadlock or not.  There are three methods for handling deadlocks they are as follows: 1. Use a protocol to prevent or avoid deadlock, 2.Allow the system to enter into deadlock then detect it and recover it, 3.Ignore problem all together and return back. To prevent Deadlock do as follows: 1.No Mutual exclusion, 2.Avoid Hold  & wait, 3.Allow Preemption, 4.No circular wait. For Deadlock avoidance future state must be founded out (i.e.) knowing the usage by process towards the resource. Resource allocation state is defined based on no of available and allocated resources and maximum demand of process towards the resources.