Sports-Related Science Fair Project Ideas

Sports-Related Science Fair Project Ideas Stay away from the typical, overdone science fair cliches, instead create something that combines sports and science for your science fair project.   Some Ideas to GetYou Started How does the material from which a baseball bat is made affect performance? How does a wood bat compare with an aluminum bat?Does altitude affect the height of a ball bounce (for example, a golf ball)? If an effect is seen, can you attribute it to the effect of gravity or atmospheric pressure?Examine the effect of energy bars on performance. Pick a sport. Is there a difference in performance if you use a protein-boosting energy bar versus a carbohydrate-boosting energy bar?What is the effect of using a corked baseball bat compared with a normal one?Does drinking an energy drink (or sports drink) affect reaction time? memory?Are there really streaks in baseball? Or is it simply chance?Compare energy drinks based on cost, taste, short-term effect, and long-term effect.Which sports drink contains the most electrolytes?How is ball diameter related to the time it takes the ball to fall?Does the length of a golf club affect the distance you can hit the ball?Does a swim cap really reduce a swimmers drag and increase speed? How does exercise affect heart rate? This project is especially good if can track data over a longer time frame.Does exercise affect reaction time?Does regular exercise affect memory?At what slope angle is the mechanical advantage of a bicycle lost, as compared with running?Compare different brands of balls for a sport (like baseball or golf) for cost versus performance.Do helmets really protect against a crash (presumably tested with a stimulant like a watermelon)?What is the best air pressure for a soccer ball?How does temperature affect the accuracy of a paintball shot?Does altitude, temperature, or humidity have an effect on the number of home runs seen at a baseball diamond?Does the presence or absence of a net affect free throw accuracy?Measure the effect on peripheral vision from wearing different types of corrective eyewear (such as glasses). Does an athlete experience a noticeable improvement when peripheral vision is increased?Is there an effect if you fill an inflatable ba ll with a different gas than air (such as nitrogen or helium)? You can measure height of bounce, weight, effect on passing, and how long it stays inflated. Tips for Choosing a Sports Science Fair Project If you are an athlete or trainer, pick the sport you know best. Can you identify any problems to be examined? A good science fair project answers a question or solves a problem.When you have an idea, consider how to design an experiment around it. You need data. Numerical data (numbers and measurements) are better than qualitative data (greater/lesser, better/worse), so design an experiment that gives you data you can graph and analyze. Do you need more science fair project ideas? Heres  a big collection  to browse.

Prussian Needle-Gun - Austro-Prussian War

Prussian Needle-Gun - Austro-Prussian War Creation of the famed Prussian Needle Gun began in 1824, when gunsmith Johann Nikolaus von Dreyse first began experimenting with rifle designs. The son of a locksmith in SÃ ¶mmerda, Dreyse spent 1809-1814 working in the Parisian gun factory of Jean-Samuel Pauly. A Swiss, Pauly tinkered with various experimental designs for breech-loading military rifles. In 1824, Dreyse returned home to SÃ ¶mmerda and opened a business producing percussion caps. Utilizing the knowledge he gained in Paris, Dreyse began by designing a muzzle-loading rifle that fired a self-contained cartridge. These cartridges consisted of a black powder charge, a percussion cap, and a bullet wrapped in paper. This single unit approach greatly reduced the time needed to reload and permitted a higher rate of fire. When the weapon was fired a long firing pin was driven by a coiled, conchoidal spring through the powder in the cartridge to strike and ignite the percussion cap. It was this needle-like firing pin which gave the weapon its name. Over the next twelve years, Dreyse changed and improved the design. As the rifle evolved, it became a breech-loader which possessed a bolt action. Revolutionary By 1836, Dreyses design was essentially complete. Presenting it to the Prussian Army, it was adopted in 1841 as the Dreyse ZÃ ¼ndnadelgewehr (Prussian Model 1841). The first practical breech-loading, bolt action military rifle, the Needle Gun, as it became known, revolutionized rifle design and led to the standardization of cartridged ammunition. Specifications Cartridge: .61 acorn-shaped round, paper cartridge w/ black powder and percussion capCapacity: 1 roundMuzzle Velocity: 1,000 ft./sec.Effective Range: 650 yds.Weight: approx. 10.4 lbs.Length: 55.9 in.Barrel Length: 35.8 in.Sights:Â  notch and front postAction:Â  bolt- actionolt-action The New Standard Entering service in 1841, the Needle Gun gradually became the standard service rifle of the Prussian Army and many other German states. Dreyse also offered the Needle Gun to the French, who after testing the weapon declined to purchase it in large quantities citing the weakness of the firing pin and a loss of breech-pressure after repeated firing. This latter issue led to a loss in muzzle velocity and range. First used by the Prussians during the 1849 May Uprising in Dresden, the weapon received its first true baptism by fire during the Second Schleswig War in 1864. Austro-Prussian War In 1866, the Needle Gun showed its superiority to muzzle-loading rifles during the Austro-Prussian War. In battle, Prussian troops were able to achieve a 5-to-1 superiority in rate of fire to their Austrian enemies due to the Needle Guns loading mechanism. The Needle Gun also allowed Prussian soldiers to easily reload from a concealed, prone position while the Austrians were forced to stand to reload their muzzle-loaders. This technological superiority greatly contributed to the swift Prussian victory in the conflict. Franco-Prussian War Four years later the Needle Gun was back in action during the Franco-Prussian War. In the years since Dreyse had offered his rifle to the French, they had been working on a new weapon which corrected the issues they saw with the Needle Gun. Despite its success during the Austro-Prussian War, the French criticisms of the weapon had proven true. Though easily replaced, the rifles firing pin had proven fragile often lasting only a few hundred rounds. Also, after several rounds, the breech would fail to close completely forcing Prussian soldiers to fire from the hip or risk being burned in the face by escaping gasses. Competition In response, the French designed a rifle known as the Chassepot after its inventor, Antoine Alphonse Chassepot. Though firing a smaller bullet (.433 cal.), the Chassepots breech did not leak which gave the weapon a higher muzzle velocity and greater range than the Needle Gun. As French and Prussian forces clashed, the Chassepot inflicted significant casualties on the invaders. Despite the effectiveness of their rifles, French military leadership and organization proved vastly inferior to the Needle Gun-equipped Prussians and led to their swift defeat. Retirement Recognizing that the Needle Gun had been eclipsed, the Prussian military retired the weapon after their victory in 1871. In its place, they adopted the Mauser Model 1871 (Gewehr 71) which was the first in a long line of Mauser Rifles used by the German military. These culminated with the Karabiner 98k that saw service during World War II. Selected Sources New York Times (December 25, 1868): The Needle Gun - Dissatisfaction with it in the Army

Aircarft performance work Assignment Example | Topics and Well Written Essays - 2000 words - 1

Aircarft performance work - Assignment Example ly against a clock and are required to complete tight turns through demanding aerial low altitude attack course consisting of â€Å"Air Gate† or Pylons (1). These races are mainly held over water close to cities. They are also held at natural wonders or airfields accompanied by supporting programs to show flights. More often than not, these races are held on weekends. The first day is dedicated for qualification with the second day being dedicated for knockout finals (1). During the race the aircrafts can achieve speeds of up to 230 mph, and, they along with the pilots can experience force of up to 12G (1). The ultimate objective of the race is to complete the course with the fastest possible time. The Pilots must enter, pass through and exit each Air Gate in the precise position, either flying level or at 90Ëš to level (often referred to as Knife edge flying) (1). Whilst avoiding contact with the pylons and the aircraft. Hence reduce being penalized with time penalties to t he overall lap time. The eventual winner in this series is determined through aggregation total points obtained at the end of each of the races across the season. For one to qualify, a pilot along with the chosen aircrafts must meet strict requirements set by the Red Bull Race organizers. The pilots must agree to be taken through a super License testing process in ensuring that he/she can cope with difficult turning/maneuvering while at the same time flying at a very low ground speeds. This races provide the pilots with a unique opportunity to showcase their skills speed precisions as they push their aircrafts, as well as themselves through extreme physical limits (2). The Zivco Edge 540 aircraft is a racing aircraft manufactured by Zivko Aeronautics and was first introduced in 2000. There are three variations of this aircraft: Zivko Edge 540, Zivko Edge 540A, and Edge 540T. Zivko Edge 540, which is the latest of the three variations is the focus of this analysis. This is highly aerobatic and

The Wall Street financial reform (2010) Research Paper

The Wall Street financial reform (2010) - Research Paper Example The passing of the law was aimed at making the financial system of the United States more accountable and transparent in order to avoid similar situations in future and ensure that there is a working system in place to protect the money belonging to tax payers (Kolb 112). The law included such major topics as the creation of a bureau for protection of consumer finances, creation of an oversight council for financial stability, the limitation of complex and large instruments of finance and transforming the derivative market to assume a more transparent image. The law also included the introduction of oversight and new requirements for the agencies dealing with credit rating. It also gave company shareholders a say concerning the bonuses paid to their chief executive officers. All these components targeted to strengthen the economy of the United States and protect the consumer against the increased shrewdness of the business world (Kolb 114). Way back in the year 1933, a law called the Glass-Steagall act had placed what was seen as a wall of complete separation between brokerages and banks. The act was largely repealed in 1999 by another act that was aimed at modernizing financial matters in the country. The restoration of the Glass-Steagall act was regarded by some commentators as very vital, with some of them referring to it as the most functional component in the reform of Wall Street. However, the Democratic Party leaders in the house refused to permit an amendment by Maurice Hinchey, a member of the Republican Party. The amendment was meant to restore the Glass-Steagall act as part of the Frank bill of 2009 (Pezzuto 67). Later on in 2009, Hinchey introduced the restoration act of the Glass-Steagall act as a separate bill proposal. Despite the politics that has played on the restoration of the act, the Volker rule, which was introduced by the administration of president Obama has been viewed as the twenty first century version of the Glass-Steagall act. The r ule establishes strict rules on banks against using their money in making risky investments. A few years earlier, in 2002, senator Sarbanes and representative Oxley proposed the Sarbanes-Oxley act. The act was a reaction to the escalating number of accounting and corporate scandals in the United States. Such scandals include the ones that affected Worldcom and Enron. The bill was signed into law by the then president of the United States, George Bush (Carney 48). During the enacting of the Wall Street financial reform act of 2010, the process brought political alignments mainly in the major political parties. The parties still had a large ideological separation since they had just come from an election, during which a large ideological rift had been created. By the Month of May 2010, the bill had been passed by both the senate and the house. However, there were differences in the version from the house and the one from the senate which was referred to the congressional conference co mmittee of the United States for harmonization. The differences that were to resolved in the bills included whether the proposed consumer protection agency was to be independent as suggested by the senate or an affiliate to the Federal Reserve as proposed by the house of representatives. Another difference was whether

Role Of The Front Office Manager Tourism Essay

Role Of The Front Office Manager Tourism Essay Given the signification of the role of the front office manager in front office, there are some of the responsibilities that the front office manager has to take notice. Some of the major responsibilities of the front office manager include reviewing the final draft of the night audit, a daily review of the financial accounting procedures at the front desk and other guest service areas during the previous 24-hour period and an analysis of operating results; operating and monitoring the reservation system; developing and operating an effective communication system with front office staff and other department directors; supervising daily registrations and check-out; overseeing and developing employees; established in-house sales programming at the front desk; preparing budgets and cost control systems; forecasting room sales; and maintaining business relationships with regular corporate and communities leaders. The front office manager works with an assistant front office manager, a ni ght auditor, a reservation manager, and a bell captain to tend to the details of running an efficient department. These are just few of the responsibilities of the front office manager. The front office is a pivotal point in communication among in-house sales, delivery of service to the guest, and financial operations. It requires an individual who can manage the many details of guest needs, employee supervision, interdepartmental communication and transmittal of financial information. This exciting position enables the person to develop an overview of the loading property with regard to financial and communication. 2.0 ANSWER QUESTION 1 Guest checkout can indeed be a time of confusion, short tempers, and long lines, a test of the patience of the both guest and cashier. Check-in and check-out is the responsibilities of a front desk that are on duty on the particular day. Usually front desk is the first and last contact with the guests. Front desk clerk represents the hotel to the guest throughout all stage of the guests stay. Front desk clerk job involves customer service, answering the telephone, securing payment for services rendered, and resolving problem. Front desk clerk must possess a working knowledge of the reservation process and room pricing strategies. Front desk clerk also takes same-day reservation and future reservation and often need to able to sell features of the hotel along with the necessary pricing strategy guidelines. 2.1 PROBLEMS SOLVES As a position of front desk clerk, it is responsible for checking guests in and out of their rooms. When a guest arrives with a reservation, front desk clerk pulls the reservation from a computer; confirm the name, address, and length of stay; and ask for a method of payment. If a credit card is to be used, front desk clerk process the payment in the computer and have the guest sign the registration card or folio acknowledging the rates and length of stay. At check-in front desk clerk can also take cash deposits as necessary to cover any phone or other charges that may be incurred. After check-in, front desk clerk will past the guest the room key and give direction to the room, and offer to summon a bellhop to help with the luggage. Front desk clerk then place the information about the guest and room in the appropriate front desk racks and communicate the information to the appropriate hotel personnel. For guests who are walk-ins, or those who dont have reservations, front desk clerk find out each guests name, address, and the expected length of stay. If a room is available, front desk clerk quotes the rate and asks about preferences for a smoking or nonsmoking room, location, and room size. Front desk clerk should also try to sell up by suggesting that the guest spend a little extra money to obtain a larger room, one with a better view, or one with more amenities. The rest of the check-in process is the same as for guests with reservations. At check-out, front desk clerk take the guests room key, look up the account on the computer, and inform the guest how much is owed. Front desk clerk inquires whether or not everything was satisfactory. At the start of each day, front desk clerk print a report of special requests of incoming guest. Requests are recorded in the computer station at the desk and entered into a logbook, and they become part of a guests history in the computer system. The history is used each time the guest returns for a visit in order to personalize the guests experience. Another report lists any groups that will be arriving. Using it, front desk clerk can prepare materials packets, which includes a room key, for each guest to speed up check-in. Between check-ins and check-outs, the front desk clerk handles the mail and messages and the placement items in safe deposits boxes for the guests. Front desk clerk post and file all charges to the proper accounts. In addition, front desk clerk should also work closely with the housekeeping department in keeping room status reports up to date and coordinating requests for maintenance and repair work. Front desk clerk must know all safety and emergency procedures and be aware of accident prevention policies as well. Another important task is solving guest problems. Front desk clerk is the liaison or contract between the guest and the hotel. When guests have problems, they call the front desk clerk or go to the front desk personally. Front desk clerk job is to solve the problems-or quickly find someone who can solve it. Keep your guests happy by keeping everything easy for them. In turn, a satisfied guest is a repeat guest and that make dollars and sense for the hospitality professional. 2.2 PRINCIPLES FOR ACHIEVING GUEST SATISFACTION Guest satisfaction is the fulfillment of a guests wants and needs. In the hospitality industry, market share dominance is exceeding guests expectation on a regular basis. A hotel guest expects a safe, clean, comfortable sleeping room. A restaurant patron anticipates a tasty meal in a clean, pleasant atmosphere with a balance price-value relationship. Meeting these expectations is the hospitality professionals priority. The job is done only when the guest are satisfied. Below are the few principles for satisfying and keeping guests. Recognize your guest. Personalizing interactions by using the guests name is not always possible, but a sincere and warm interaction goes a long way. Make a positive first impression. The initial greeting and warm welcome are essential elements of creating a positive exchange. Guests judge your advertising claims against beliefs they already hold and accept only new information that match those beliefs. Changing a negative first impression is challenging, if not impossible. Fulfill your guests expectations. Guests expect a trouble-free environment. All the guests want is to have their needs met without aggravation. Those organizations that can exceed guest expectation will have leg up the competition. Facilitate customer decision making. The guest may not be familiar with the entire offer that provide by the hotel. Guest decisions can facilitated in subtle ways, such as carrying a flaming dessert that is sure that attract attention high on a tray. Engage the customer in dialogue about the food and beverage offering to enhance their experience and narrow the uncertainly of satisfaction they may have. Avoid violating the customers unspoken time limits. Time spent waiting always seems four times longer than it really is. Anticipate the next sequence in the service delivery and time the service accordingly. Expert your customer to remember bad experience. Also expect your customer to tell you about those bad experiences, embellishing with each retelling. The result can be an unfavorable impression on people who havent yet patronized your establishment. 3.0 CONCLUSION The functional role of front office manager can be understood by preparing a job analysis and job description. This process allows the future professional to see the major responsibilities of the job and the various departmental relationships involved. The many positions found on a front office staff have to common goal of providing hospitality to the guest. Training, empowerment, and flexibility are necessary to make the team work. Forecasting, scheduling, developing a supervisory style, motivating personnel, balancing staff personalities, delegating tasks, training and effectively communicating are only a few of the skills a good supervisor must master. It is a lifelong effort developed through continuing education and trial and error. QUESTION 2 1.0 INTRODUCTION Making reservation is a necessity for travelers and an important marketing tool for lodging establishments. Travelers in various market segments depend on a well-organized reservation system that is easily accessible through toll-free telephone numbers or on the Internet, or at a few moments notice through social networking opportunities such as Facebook, Twitter, and LinkedIn to ensure a well-planned trip. Lodging establishment want to provide a continuous flow of guest, which will bring profits. A reservation system must ensure efficient means of accessing, processing, and confirming information. Without an efficient reservation system, all aspects of managing a hotel will be negatively affected. For example, while overbooking reservation may guarantee a full house for the hotel, it will also leave the guest who is turned away with a negative experience. This is not only decrease the hope of repeat business but also ensures the dissatisfied customer will tell to others of the negative experience. The reservation is an integral part of progressive front office management and the operation of a well-run system. 2.0 ANSWER QUESTION 2 Profitable business ventures rely on effective marketing principles. Effective marketing principles include reviewing people who are in need of hotel products and services, determining their needs, developing products and services that meet their needs and marketing a profit on the sale of those products and services. A well-organized reservation system allows hotels to ensure a steady flow of guest into their properties. Hotel chains, through their central reservation system, offer their members to ability to fill 30 percent or more of available rooms on nightly basis. Independent hoteliers, in contrast, have the onerous responsibility of creating exciting marketing programs to capture room business. Easy access to a chain hotels data bank of rooms help to fulfill the customers needs, as well as in reaching a targeted daily occupancy rate, average daily rate, yield percentage, and RevPAR. A reservation system is the primary represents means of producing positive cash flow and favorable income statement. 2.0 ANSWER QUESTION 2 2.1 TYPE OF RESERVATION SYSTEM There are two types of reservation systems such as Franchisee systems and Referral member systems. 2.1.1 FRANCHISEE SYSTEMS A franchisee is a hotel owner who has access to a national reservation system and services the benefits of the corporations management expertise, financial backing, national advertising, and group purchasing. A franchise member of a reservation system or a member of a reservation system or a member of a referral system gains significant advantage from interhotel property referrals, a system in which one member-property recommends another member-property to a guest, and national advertising. 2.1.1 REFFERAL MEMBER SYSTEMS A referral member of a reservation referral system, a worldwide organization that processes requests for room reservations at a particular member hotel, is a hotel developer/owner who has access to the national reservation system. Hotels that are members of the reservation system are more than able to justify the associated costs; for example, a chain property may obtain 15 to 30 percent of its daily room rentals from the national reservation system, depending on local economics and market condition. 2.2 SOURCES OF RESERVATION Guest reservations come from a variety of market segments. Some of the more common groups are corporate clients, group travelers, and leisure travelers who want to return to the same hotel. This is only one way of classifying guest reservations. The purpose of analyzing these segments is to understand the needs of each group and to provide reservation systems that meet their needs. Keep in mind that reviewing these needs will assist employee in gaining insight into guests methods of communication. 2.2.1 CORPORATE CLIENTS The corporate client is a hotel guest employed by a business or a guest of that business. Corporate clients provide a hotel with an opportunity to establish a regular flow of business during sales periods that would otherwise be flat. 2.2.2 GROUP TRAVELERS Group travelers are persons traveling as a group either on business or for leisure. Convention guests and seminar attends are examples of groups that travel on business. Participants in organized tours who pursue recreation, education, hobbies, and special interests constitute some of the leisure segment. The key to marketing reservations to this group is providing an efficient access method for planning details of a tour. 2.2.3 LEISURE TRAVELERS Leisure travelers are people who travel alone or with others to visits points of interest or relatives, or for other personal reasons. These travelers, who are often unrestricted by deadlines or schedules, are more flexible in their travel plans than are corporate clients and group travelers. They are more willing to seek someplace to stay along the way; however, some of the people in this group may want to obtain consists of many subgroups, including singles, married couples, young families, senior citizens, and student. Some of the methods the leisure travelers can use secure room reservations are travel agencies, toll-free numbers, reservation/referral systems, the Internet, Twitter and even in Facebook. 2.3 ADVANTAGES FOR RESERVATION The advantages for reservation are to prevent when customer need a place to stay overnight and the hotel are fully booking. This situation might make the customer feel disappointed when they expected the hotel is available for the rooms. The advantages for reservation are when the customer make a early book, the customer might get a discount from the hotel or even like buy 1 room free 1 room, free breakfast or free using the of the hotel. This type of promotion will satisfy the customers need and it make customer feel that the hotel are welcoming them to stay in the hotel. In other word, customer are usually are knowledgeable. Once the hotel services fulfill the customer need, the customer will sure visit the hotel when they make a next visit or they might share their experience in staying the hotel to other friend or relative so that they can also get the same services that the hotel provide. 2.4 IMPROVEMENT FOR THE EARLY RESERVATION BOOKING CUSTOMER The management of the hotel should given a plan for the customer who makes an early booking in the peak season. This holiday plan may help attract the customer who planning a holiday trip with the family member and the trip will help to build strong relationship with each of the family members. The promotion such as free breakfast, free uses the facilities in the hotel, and free tour guide to travel in the particular city. This may help to increase the sales of the hotel and even the customer will be coming back for their next trip. 3.0 CONCLUSION The reservation has addressed the hotel reservation systems. As the popularity of computerized reservation systems increases, chains and referral properties have adopted them to meets the needs of the traveling publics. Reservations ensure that corporate, group and pleasure travelers will have accommodations as their destination and provide the hotel with a steady flow of business. Determining the sources of these reservations assist the front office manager developing procedures to satisfy the needs of the guest. The traveler can use various means to make reservations, such as toll-free telephone numbers, fax numbers, the Internet and social media. The concept of customer relationship management links hospitality and technology. The management of social media applications helps develop the reservation concept.

Power Theft Detection

1. INTRODUCTION The automatic meter reading(AMR) system as become a necessity for most suppliers as deregulation, free customer choice and open market competition occur in the energy supply sector. Power line communication has many new service possibilities on the data transferring via power lines without use extra cables. AMR is a very important application in these possibilities due to every user connected each other via modems using power lines. AMR is a technique to facilitate remote readings energy consumption.Improving the electrical power supply to households as a big issue. The government has set a specific goal to raise the distribution rate of electrical power supply, which is now around 70% to 80% to 100%. Power companies are plagued by power theft. PLC will play an important role in placing anti-theft power system. Illegal electricity may be a serious problem in many countries . This problem has been attempted to be resolved by special skills of humans, such as the police special security etc. These method could not give optimum solution due to their impracticalities. Similar essay: Essay About Snatch TheftMeter reading has been applied by humans and some electronics solutions such as optical reading methods, creditable utilization of electrical energy etc. Many chips which can be used for digital energy metering and PLC modems. The problem of illegal usage of electricity must be solved electronically, without any human control. 2. POWER THEFT Electrical power by altering, slowing, resetting, swapping, or disconnecting an electric meter. Theft also may occur by rewiring circuits to avoid an electric meter, or by tapping into another customer’s electrical lines.The fraudster might use devices to program the theft of power only during certain periods of theday or week. A fraudster may rewire their property to illegally use power from cheaper sources of power, or from meters that are billed at lower rates. The fraudster risks electrocution and detection. Field employees of the power company are trained to spot problems that result in persons n ot being billed for all the electricity they use. Computerized billing systems are designed to detect erratic electricity use Fig No 2. 1 3. PLC installATION.Power meters with PLC  modules will be installed near the top of the power polls. Previously, it was enough to install power meters in high places, not in low places such as the house wall, to prevent users from using power illegally by connecting cables, or by using tampered meters. However, by doing so, the homeowners themselves cannot check how much electricity was used. Therefore, PLC  technology was chosen. Meters installed in high places will send data of the used amount to each household through power lines. Homeowners can then check the amount used on the displays installed in each house.This means that the measurement function and the display function of the meters will be separated. [pic] Fig No3. 1 †¢Ã‚  Power theft is prevented by installing  HD-PLC-mounted power meters on a high position on power polls, while the amount of power used in each household can still be checked Each power meter is connected to an optical fiber network, and information of the amount used by each household is sent to the power companies. If the power companies find that a payment is delinquent, they can remotely stop the power supply by controlling the meters through the optical fiber network.In this way,  HD-PLC  and optical fiber networks enable power companies to prevent power theft, and to grasp the actual amount of power consumed by district or by each household in real time, and also to control the amount of power supply. The waste of power can also be reduced, another big advantage. Furthermore, wide spread use of the power meters with  HD-PLC  modules is expected to reduce regional disparities in information, or the ‘digital divide’. 4 . DETECTION OF ILLEGAL ELECTRICITY USAGE 4. 1 Methods Of Illegal Electricity Usage:In illegal usage, a subscriber illegally use electricity in f ollowing ways: 4. 1. 1 Using the mechanical objects: A subscriber can use some mechanical objects to prevent the revolution of a meter, so that disk speed is reduced and the recorded energy is also reduced. 4. 1. 2 Using a fixed magnet: A subscriber can use a fixed magnet to change the electromagnetic field of the current coils. As is well known , the recorded energy proportional to electromagnetic field. 4. 1. 3. Using the external phase before meter terminals: This method gives subscribers free energy without any record. . 1. 4. Switching the energy cables at the meter connector box: In this way ,the current does not pass through the current coil of the meter, so the meter does not record the energy consumption. Although all of the methods explained above may be valid for electromechanical meters, only the last two methods are valid for digital meters. 5. DESCRIPTION ON PLC Most economically viable technology for transferring Meter data to DCU. Uses the technique of communicating the data over existing Electrical Lines which carry LT power to the site.PLC is a kind of communication technology, which uses Medium Voltage(MV) and Low Voltage(LV) distribution network as the communication media to implement transmission of data, voice and real time image. The components involved in PLC are the; 1. Power Line Carrier Unit which provides signal transmission and reception. 2. There is a Coupler used for â€Å"clamping† around a live wire thus injecting the communication signals into the power line. 3. PLC modem 5. 1 The monitoring system mainly has the following functions: 1. Remote meter-reading 2. Data acquisition 3. Thread PLC transmissions are synchronized to the zero crossing point of the AC power line. It should be transmitted as close to the zero crossing point i. e. within 200 ? s. Square wave with a max Delay of 100 ? s from the zero crossing point The maximum delay between signal envelope input and 120KHz output bursts is 50 ? s. Therefore, it shoul d be arranged that outputs to the within 50 ? s. 5. 2 CODE TRANSMISSION: A Binary 1 is represented by a 1 ms burst of 120 KHz the zero crossing point and a Binary 0 by the absence of 120 KHz. Therefore only the 1 ms â€Å"envelope† need be applied to their inputs.These 1 millisecond bursts should actually be transmitted three times to coincide with the zero crossing points of all three phases in a three phase distribution system. 6. DIFFERENT COUPLING UNITS. [pic] 7. DEFINITION ON AMR AMR(AUTOMATIC REMOTE READING) automates the process of measurement through digital communication techniques. Bring â€Å"intelligence† into the revenue cycle and manage it: The revenue cycle includes metering, billing operating, customer and the services. 7. 1 ADVANTAGES: 1. Smart automated process instead of manual work. 2. Accurate information from the network load to optimise maintenance and investments . Customized rates and billing dates. 4. Streamlined high bill investigations. 5. D etection of tampering of Meters. 6. Accurate measurement of transmission losses. 7. Better network performance and cost efficiency. 8. Demand and distribution management. 9. More intelligence to business planning 10. Better company credibility. 8. DETECTION AND CONTROL SYSTEM The proposed control system for the detection of illegal electricity usage is: [pic] FIG. 8. 1 PLC signaling is only valid over the low voltage -220VAC power lines. The system should be applied to every low-voltage distribution network.The system given in fig 7. 1 belongs only one distribution transformer network and should be repeated for every distribution network. Although the proposed system can be used uniquely, it is better to use it with automatic meter reading system. If the AMR system will be used in any network, the host PLC unit and a PLC modem for every subscriber should be contained in this system. In fig7. 1 the host PLC unit and other PLC modems are named PLC1A,†¦. ,PLCNA and are used for AM R. These units provide communication with each other and send the recorded data in kilowatthour meters to the PLC unit.In order to detect illegal usage of electrical energy, a PLC modem and an energy meter chip for every subscriber are added to an existing AMR system. As given in fig1, PLC1B,†¦Ã¢â‚¬ ¦,PLCNB and energy meter chips belong to the detector. The detector PLC’s and energy meters must be placed at the connection point between distribution main lines and subscriber’s line. 8. 1 ADVANTAGE OF THIS SYSTEM : Most economically viable technology for transferring Meter data to DCU. Uses the technique of communicating the data over existing Electrical Lines which carry LT power to the site.Since the connection point is usually in the air or at underground, it is not suitable for anyone to access, such that its control is easy. It is very economical and is reliable solution when it is compared with the economical loss caused by illegal usage. 8. 2 CONDITIONS FOR T HIS DETECTION AND CONTROL: PLC signaling must be in CENELAC standards. CENELAC has formed the standard in which the frequency bands, signaling levels, and procedure are specified. 3-9 khz are restricted for use by electricity suppliers, and 95-148. 5khz are restricted to consumer use. The signal level for the band 95-148. khz is limited as follows. For general use ,the signaling level is limited to 116db µV. 9. DETECTION The recorded data in kilowatt hour meters for every subscriber are sent to host PLC modem via PLC modems which are placed in subscribers locations. On the other hand energy meter chips are located in connection point and read the enrgy in kilowatthours and also send the data to host PLC unit. This proposed detector system as two recorded energy data in host PLC unit, one which comes from the AMR-PLC, and the other which comes from the PLC at the connection points.These two recorded energy data are compared in the host PLC; if there is any difference between two re adings an error signal is generated. This means that there is an illegal electricity usage in the network. After that, the subscriber address and error signal are combined and sent to the central control unit. If it is, requested, a contacter may be included to the system at location to turn off the energy automatically, as in the case of illegal usage 10.. ILLEGAL DETECTOR SYSTEM FOR ONE SUBSCRIBER [pic] Fig No 10. 1 11.SYSTEM SIMULATION AND MODELLING OF THE DETECTION SYSTEM OF ILLEGAL ELECTRICITY USAGE FOR ELECTROMECHANICAL KILOWATTHOUR METERS [pic] Figure 11. 1 A host PLC modem, an energy meter chip and its PLC modem, an electromechanical kilowatthour meter and its PLC modem, and an optical reflector sensor system are loaded at the same phase of the power grid. The energy value at the electromechanical kilowatthour meter is converted to digital data using optical reflector sensor. Disk speed of the kilowatthour meter is couted and obtained data is sent to PLC modem as energy valu e of the kilowatthour meter.At the system model, an illegal load may be connected to the power line before the kilowatthour meter via an S switch. While only a legal load is in the system, two meters are accorded each other to compensate for any error readings. The host PLC unit reads two recorded data coming from metering PLC units. If the S switch is closed ,illegal load is connected to the system. , and therefore two recorded energy values are different from each other. The host PLC unit is generated when it received two different records from the same subscriber. This is the detection of the illegal usage for interested users.In these, the tests, the carrier frequency is selected at 132khz, which is permitted in the CENELAC frequency band. In real application, the AMR system may be designed in all CENELAC bands. The data rate between the host and the other PLC modem is 2400b/s. Data signaling between PLC modems has a protocol which includes a header, address, energy value data, error correction bits, and other serial communication bits such as parity and stop bits. The protocol may also be changed according to the properties of the required system and national power grid architecture.In the digital energy meter system, the recorded energy may be received in the digital form directly using the port of the meter. Therefore, there is no need for an optical reflector system in digital meters. 12. AN OVERVIEW OF THE PROPOSED DETECTOR SYSTEM The proposed detector system is the equipment and procedure for controlling more remote stations from a master control station. It includes PLC modems, energy meters, control logics, and the system software . 12. 1 PLC MODEMS: These used for two way communication to and from the host station and the remotely controlled targets. 12. 2 ENERGY METER AND CONTROL LOGIC:Energy meter includes metering chip, and some circuit element. control and logic units compare and generate the error signal in the illegal usage. 12. 3 SYTEM SOFT WARE: Assembler program for the microcontroller and the operating software for the management of the overall system. Operator software may be downloaded from a PC and should be placed in the main center of the system. 13. AN AMR SYSTEM FOR AN ILLEGAL DETECTOR PERFORMS THE FOLLOWING FUNCTONS: 1) 1Every user has two PLC modems; one is for AMR and the other is used to send the data from second energy meter chip to host PLC modem. ) An energy meter must be connected in the connection box between a home line and main power lines. 3) The host PLC unit must be placed in the distribution transformer and the configuration of the addressing format of PLC signaling must be designed carefully. 4. The host PLC modem and its controller must include two addresses per every user: one is the AMR and the other for the energy meter. These two addresses must be selected sequentially. 5. Operating software must designed for the information of every subscriber in every sub power network: subscriber ident ification number, billing address etc. . The system has two values of energy consumption for every user, so if there is a difference between them an error signal is generated for the illegal user. 7. The proposed equipment is the only one distributed in the power network. So this system should be repeated for all distribution power networks. All host units in each distribution transformer maybe connected only one main center station via phone lines, fibre optic cable or RF links. 14. CONCLUSION A detector system to determine illegal electricity usage via power line communication is designed and proposed.The proposed system is examined in laboratory conditions. Obtained results from this study show that if the AMR and detector system are used together, illegal usage of electricity may detected. The system functions with real-time monitoring users and burden forecast, which uses MV&LV PLC as its transmission media. The system is integrated with power management and burden control. Und er power theft, the relay is switched off isolating the area of power theft from the EB side . LCD display also indicates power theft. Energy regulation does not epresent an obstacle, since PLC service does not affect the power supply and maintains separate accounts from the core utility business. Once this proposed system is tried in real power lines, the distribution losses can be reduced effectively. 15. REFERENCE [1]Hakki Cavdar, †A solution to remote detection of illegal electricity usage via power line communication†, IEEE Trans. Power Delivery,vol. 19,no. 4,Oct 2004. [2] T. Y. Lim and T. W. Chan, â€Å"Experimenting remote kilowatt hour meter through low voltage power lines at dense housing areas†, IEEE Trans. Power Delivery, vol. 17, pp708-711,july 2002. [3] J.Newbury and W. Miller,† Multiprotocol routing for automatic remote using power line carrier systems†, IEEE Trans. Power delivery,vol. 16 pp 1-5,Jan 2001. ABSTARCT Power Line Communication (PLC) presents an interesting and economical solution for automatic meter reading (AMR). If an AMR system via PLC is set in a power delivery system, a detection system for illegal electricity usage may be easily added in the existing PLC network. In the detection system, the second digitally energy meter chip is used and the value of energy is stored. The recorded energy is compared with the value at the main kilowatt-hour meter.In the case of difference between two recorded energy data, in error signal is generated and transmitted via PLC network. The detector and control system is proposed. The architecture of the system and their critical components are given. This report describes a prototype of the detector system for illegal electricity usage using the power lines. ACKNOWLEDGEMENT I am thankful to Prof. Sukumaran P R ,Head of the Department for providing me with the facilities for the seminar. I would also express my sincere gratitude to Mrs. Rajashree Raghavan ,for her guida nce and mere cooperation for preparing and presenting the seminar.Above all I thank all the faculties of the EEE Department and my friends for their moral support and encouragement. CONTENTS 1. INTRODUCTION01 2. WHAT IS POWER THEFT? 02 3. How is PLC installed ? 03 4. DETECTION OF ILLEGAL ELECTRICITY USAGE04 5. DESCRIPTION ON PLC:05 6. DETECTION AND CONTROL SYSTEM07 7. ILLEGAL DETECTOR SYSTEM FOR ONE SUBSCRIBER:10 8. SYSTEM SIMULATION AND MODELLING OF THE DETECTION SYSTEM OF ILLEGAL ELECTRICITY USAGE FOR ELECTROMECHANICAL KILOWATTHOUR METERS11 9. AN OVERVIEW OF THE PROPOSED DETECTOR SYSTEM:13 10. CONCLUSION:15 11. REFERENCE16

An Ethical And Civil Exchange Of Ideas And Opinions Among...

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