Distance Measurement Using RSSI Method in WSN

Distance Measurement Using RSSI Method in WSN Distance Measurement Using RSSI Method in Wireless Sensor Networks Akhand Pratp Singh, Devesh Pratap Singh, Santosh Kumar Abstract. RSSI method gives distance measurement between beacon nodes and unknown node. RSSI is Range-based localization depends on the assumption that the absolute distance between a sender and a receiver can be estimated by one or more features of the communication signal from the sender to the receiver. RSSI measurement is not more relevant because the RF signal is affected by the environment, the exact distance between the nodes cannot obtain by RSSI measurement by RSSI. Keywords: Received Signal Strength Indicator method, RSSI method, Distance Measurement by RSSI. Introduction Wireless Sensor Networks can be generally defined as network of nodes that cooperatively sense and control the environment enabling interaction between persons or computers and the surrounding environment. WSNs are mostly used in military surveillance, industrial process control and environmental monitoring. Node localization is a big problem of wireless sensor networks applications [1].According to estimation of node localization [2][3], the localization algorithms[3] can be divided into two categories: range-based and range-free. Range-based method calculates the localization between neighboring sensors. Several ranging techniques are possible for range measurement, such as time of arrival, time difference of arrival, angle of arrival, or the receive signal strength indicator (RSSI) [3]. Range free techniques solution depends only on the contents of received messages, which does not estimate the distance or angle between the nodes. Typical range-free localization algorithms [7] inc luded Centroid, DV-Hop, Amorphous, MDS-MAP[14] and APIT, and so on [3]. Localization algorithm [7] based on range-based has higher accuracy but requires additional hardware on sensor nodes. Localization of Wireless Sensor Networks Localization [8] is the process by which sensor nodes determine their location. In simple terms, localization is a mechanism for discovering spatial relationships between objects. The various approaches taken in literature to solve this localization problem differ in the assumptions they make about their respective network and sensor capabilities. A detailed, but not exhaustive, list of assumptions made include assumptions about device hardware, signal propagation models, timing and energy requirements, composition of network via homogeneous vs. heterogeneous, operational environment via indoor vs. outdoor, beacon density, time synchronization, communication costs, error requirements, and node mobility [9]. Localization of WSNs is classified in two approaches [5]. Direct Approaches This is also known as absolute localization. The direct approach itself can be classified into two types: Manual configuration and 8GPS-based localization [5]. The manual configuration method is very cumbersome and expensive. It is neither practical nor scalable for large scale WSNs and in particular, does not adapt well for WSNs with node mobility. The GPS-based localization method, each sensor is equipped with a GPS receiver. This method adapts well for WSNs with node mobility [6]. However, there is a downside to this method. It is not economically feasible to equip each sensor with a GPS receiver since WSNs are deployed with 100 of 1000 of sensors. This also increases the size of each sensor, rendering them unfit for pervasive environments. Also, the GPS receivers only work well outdoors on earth and have line-of-sight requirement constraints. Such Wireless Sensor Networks can’t be used for underwater applications like habitat monitoring, water pollution level monitoring, t sunami monitoring [5], etc. Indirect Approaches The indirect approach [5] of localization is also known as relative localization [4] since nodes position themselves relative to other nodes in their vicinity. The indirect approaches of localization were introduced to overcome some of the drawbacks of the GPS-based direct localization techniques [9] while retaining some of its advantages, like accuracy of localization. In this approach, a small subset of nodes in the network, called the beacon nodes, are either equipped with GPS receivers to compute their location or are manually configured with their location. These beacon nodes then send beams of signals providing their location to all sensor nodes in their vicinity that don’t have a GPS receiver. Using the transmitted signal containing the location information[4], sensor nodes compute their location. This approach effectively reduces the overhead introduced by the GPS-based method. However, since the beacon nodes are also operating in the same hostile environment as the se nsor nodes, they too are vulnerable to various threats, including physical capture by adversaries. This introduces new security threats concerning the honesty of the beacon nodes in providing location information Since they could have been tampered by the adversary and misbehave by providing incorrect location information. Within the indirect approach, the localization process can be classified into the following two categories. A. Range-based In range-based [5] localization, the location of a node is computed relative to other nodes in its vicinity. Range-based localization depends on the assumption that the absolute distance between a sender and a receiver can be estimated by one or more features of the communication signal from the sender to the receiver. The accuracy of such estimation, however, is subject to the transmission medium and surrounding environment. Range based techniques usually rely on complex hardware which is not feasible for WSNs since sensor nodes are highly resource-constrained and have to be produced at throwaway prices as they are deployed in large numbers. Some range-based localization techniques are as follows Angle of Arrival, Received Signal Strength Indicator (RSSI), Time of Arrival and Time Difference of Arrival. In this paper we are discussing about the RSSI technique [12][15], RSSI technique does need require additional hardware, which will not increase the hardware cost and the size of the nodes. However, due to RF signals influenced by the environment, the exact distance between the nodes cannot obtain by using RSSI [10][11], so the localization accuracy of nodes are not high. B. Range-free Range-free[5] localization never tries to estimate the absolute point to point distance based on received signal strength or other features of the received communication signal like time, angle, etc. This greatly simplifies the design of hardware, making range-free methods very appealing and a cost-effective alternative for localization in WSNs. Typical range-free localization algorithms[7] included Centroid ,DV-Hop, Amorphous, MDS-MAP[14] and APIT,etc. Received Signal Strength Indicator (RSSI) Measurement Principles RSSI measurement [3] calculates the signal loss in the dissemination process with the theory or experience loss of signal propagation model and distance calculated between transceiver to receiver by path distance formulae. Some measure terms which are important role in RSSI measurement as follows: Path Loss Model Path loss models [3] are free space propagation model, the logarithmic distance path loss model, Hata model, etc. the logarithmic distance path loss model [3] is shown by formula (1): (1) Where d is distance from transmitter to receiver and its unit is km, n is path loss exponent that measures the rate at which the RSSI decreases with distance and the value of n depends on the specific propagation environment, XÏÆ' is a zero mean Gaussian distributed random variable whose mean value is 0 and it reflects the change of the received signal power in certain distance, d0 is reference distance and usually equals 1 meter, PL(d0) is a known reference power value in dBmilliwatts at a reference distance d0 from the transmitter. Received Signal Power at Reference distance Suppose A is the received signal power in the distance d0 between trans- mitter and receiver, the formula (2) can be generated. (2) Where Pt is power of transmitter and PL(d0) is a known reference power value in dBmilliwatts at a reference distance d0 from the transmitter. Distance Calculated by RSSI measurement The RSSI Value at the certain distance is calculated by the given formula. (3) Where RSSI is the received signal power. A is the received signal power in the sdistance of 1meter,n is the path loss index and relates to the environment. Then we select maximum RSSI value and then we convert it into distance by given formulae. After calculating the RSSI values we can obtain the maximum value of the RSSI which is known as RSSImax. (4) Where RSSImax is the maximum received signal power selected from all the RSSI values. A is the received signal power in the distance of 1meter,n is the path loss index and relates to the environment. RSSI Measurement Algorithms When we go through the RSSI method then we have to go through the following step of the algorithms as follows: Result and Analysis Our simulation is done in 10m x 10m two dimensional environment. Node deployment accuracy is very important. 9 nodes are deployed randomly we can get their coordinate and suppose one known node as unknown node and then we can find the distances, path loss, Gaussian distributed value [3]. Figure 1 Random deployed node Where +: unknown node *: Beacon node In the simulation we assume (x1,y1): (3.4855, 2.7068) as unknown Node and further we calculate the distance, maximum RSSI value in Scenario of 9 node where one node suppose to be mobile[6] by RSSI Method when n=2 ,A=8.4734 dBm and power loss at reference distance is 31.5266 dBm. Table1.Distance Calculation When we simulate we found that distance measure by RSSI principle is 1.5726 meter, but when we applied the distance formulae for the Coordinate we found that exact distance is 5.4825.So we found that there is measure margin of error. Figure2. Error in distance calculated by RSSI In figure1 we can see that the distance calculated by RSSI is not accurate, because the error percentage is 71.35. Conclusions Localization performance will depend on many things, including the localization algorithm used, the quantity of prior coordinate information, the method selected, and the accuracies possible from those measurements in the environment of interest[12]. The RSSI measurement is studied in this paper, but this method is not more accurate because the radio frequency signals is affected by the environment[12][13], the exact distance between the nodes cannot obtain by RSSI measurement. Experimental measurement and simulation results show that the distance is obtain, but measurement is not accurate. The proposed method is a good option in wireless sensor node localization, because of low cost and less complexity of the simulation. In future we can work on improving the RSSI method for the more accuracy because sometimes there is problem of accurate distance and it depends only on the measurement parameter model. The result shows that in future if we work through the RSSI method for the specif ic scenarios like war (soldier) and forest fire then the method may provide the specific result and maybe there is need of some more Improvement in this proposed method because some time the result shown by experiment is out of bound so there is need of some more improvement. References [1] Yick J., Mukherjee B. and Ghosal D., â€Å"Wireless Sensor Network survey†, Elsevier  Computer Network, vol.52, pp. 2292– 2330, 2008. [2] Mao G., BarÄ ±s F. and Anderson B.D.O.,â€Å"Wireless Sensor Network Localization Techniques†, Elsevier Computer Networks, vol.51,pp. 2529–2553, 2007. [3] Zheng J., Wu C., Chu H. and Xu Y., â€Å"An Improved RSSI Measurement In Wireless  Sensor Networks†, Elsevier Procedia Engineering, vol.15, pp. 876 – 880, 2011. [4] Patwari N., Aah J. N. and Kyperountas S., â€Å"Locating the nodes cooperative localization In Wireless Sensor Network†, IEEE Signal Processing Magazine, vol.22, No.4,  pp. 54-69, 2005. [5] Srinivasan A. and Wu J., â€Å"A Survey on Secure Localization in Wireless Sensor Networks†, Florida Atlantic University, USA. [6] Amundson I. and Koutsoukos X.D., â€Å"A Survey on Localization for Mobile Wireless  Sensor Networks†,Computer Science,Springer,vol.5801, pp. 235-254, 2009. [7] Han G., Xu H.,Duong R.Q., Jiang J.,and Hara T., â€Å"Localization algorithms of Wireless  Sensor Networks: a survey†, Telecommunication Systems, Springer, vol. 52, Issue 4,  pp. 2419-2436, 2013. [8] Zeng Y., Cao J., Hong J, Zhang S. And Xie L., â€Å"Secure localization and location very  fication in wireless sensor networks: a survey†, Springer, vol. 64, Issue 3, pp. 685-701,  2013. [9] Wei X. and Qi Y., â€Å"Research on Some Key Techniques of Wireless Sensor Network†,  Electrical Engineering, Springer, vol. 127, pp. 255-260, 2012. [10] Heo J, Kim J. H. and Hong C.S., â€Å"A Logical Group Formation and Management  Mechanism Using RSSI for Wireless Sensor Networks†, Computer Science,   Springer, vol. 5297, pp. 207-216, 2008 . [11] Erdogan S.Z., â€Å"Mobility Monitoring by Using RSSI in Wireless Sensor Net  Works†,Computer and Information Science, Springer, vol. 90, pp. 572-580,  2010. [12] Adewumi O., Djouani K.,and Kurien A., â€Å"Performance Evaluation of RSSI  Based Distance Measurement for Localization in Wireless Sensor Networks†,  Social Informatics and Telecommunications Engineering, Springer, vol.119,  pp. 74-83, 2013. [13] Ahn H., Lee Y.H., Cho H.J., Rhee S.B., and Lee J.H., â€Å"A RSSI-Based Approach for Localization of Wireless Sensor Network in Indoor†, Electrical   Engineering, Springer, vol. 120, pp. 123-127, 2012.   [14] Miao C., Dai G., Mao K., Li Y., and Chen Q., â€Å"RI-MDS: Multidimensional  Scaling Iterative Localization Algorithm Using RSSI in Wireless Sensor  Networks†, Computer and Information Science, Springer, vol. 501, pp. 164-  175, 2015. [15] Shen X., Wang Z., Jiang P., Lin R., and Sun Y., â€Å"Connectivity and RSSI  Based Localization Scheme for Wireless Sensor Networks†, Computer Sci- ence, Springer, vol. 3645, pp. 578-587, 2005.

Why John Brown Chose Violence :: essays research papers

Why do you believe that John Brown believed that the situation in the U.S. at the time could only be solved by bloodshed and not compromise?   Ã‚  Ã‚  Ã‚  Ã‚  I believe that there are many reasons why John Brown believed that violence was the only way he could prevail in the fight to end slavery in the United States. First of all; at this time in history, issues were moving fairly quickly. As soon as Kansas was to become a territory, supporters from both the North and South rushed to settle on the land and tried to gain control of the vote in the area. Secondly, it probably seemed that any attempts at compromise at that time had not, and would not, get very far in the issue. Lastly, the most prominent reason I believe that John Brown felt violence was the only answer, was because of his belief in God. As he stated in his speech to the courts during his trial, he felt that what he did was not wrong. Sacrificing his life was worth it; even if it was just one step towards ending slavery, something that was so cruel and wicked anyway, his violence was no worse than the slavery.   Ã‚  Ã‚  Ã‚  Ã‚  When the Kansas-Nebraska Act was introduced in the U.S., the North was upset because the new territories would probably be pro-slavery. As soon as they could, both sides of the issue sent in settlers to try and gain control. This â€Å"race for Kansas† made the race to make a final decision on the issue of slavery in the U.S. an even more urgent issue. This battle to decide what side the two new territories would be on probably pushed the issue so hard it caused a lot of discomfort and probably hurried people like John Brown into making decisions quickly, because people were afraid. I believe that the rush to make a ruling for or against slavery was one reason why John Brown chose bloodshed over compromise.   Ã‚  Ã‚  Ã‚  Ã‚  The second reason I believe Brown picked violence over negotiation was because of the lack of communication. It probably seemed a hopeless endeavor to even try to correspond with the South on the issue, especially after violence had already begun in many places; not to mention in the act of slavery itself. It would have been very hard for either side to civilly speak or negotiate with the opposition in an reasonable manner.

Critical Response to the film “Remember the Titans” Essay

â€Å"Remember The Titans† is a film text, centered by the issue of the injustice of a persons race and how it is triumphantly overcome. It is an uplifting story how an American town, Alexandria, conquered overwhelming resentment, friction and disharmony brought on by racial discrimination and mistrust. The town is further thrown into chaos, as protests rage over the killing of an African-American youth and then the integration of the major local High school; T.C. Williams. The integration lead to the demotion of a much loved and highly successful head coach of the school state football team by the name of Bill Yoast, the job’s new occupancy went to an African-American by the name of Coach Boone, who ultimately suffers injustice because of his race and the fact he was replacing a white coach which brought chaos to the white community. The injustice displayed in the film Remember the Titians can be seen numerous amounts of times. Coach Boone sets a wonderful example of the town learning to trust each other and work together and shows the boys a funeral where people had died fighting the same fight people are still fighting today and the injustice of this situation to everyone. The film shows justice can be achieved on earth if people learn to respect each other. This barrier is overcome when one of the black teammates refuses to protect his white teammates because they wont block for the black teammates, they are made to spend time with each other and learn about each others culture which ultimately they learn to respect each other no matter what race or where they came from. This lead to friction in the community and the boys parents wanting Coach Boone fired because of the communities outrage that the highs school had been joined together and the injustice being showed to each other through murdering people becau se of there skin colour and the disrespect shown because of the persons race. As the team learns to show each other good morals, trust and respect during a time where the community were showing signs of discrimination, hate and mistrust and this is when Coach Boone showed the injustice of how his father died having to fight this same fight and the team ultimately responded and overcame the difficulties of having a multicultural team with the assistance of democratic and authoritarian coaching styles by both Coach Boone and  Coach Yoast. The coaching styles improved the players motivational skills there self fulfillment to work together and set an example to be treated equally, which made the coaches and players of different races share the same goals and perception of the injustice of the peoples mistreatment because of race. As the team became an top contender and where playing every game with such passion and serving a sense of justice to each other when people would use racial comments on the field no matter what the race every member would stand up for each other. As the team worked together and both coaches shared there perceptions the team really achieved greatly and this rubbed of into the community. As examples of the white policeman acknowledging and congratulating a black titans efforts goes to prove that justice was being achieved on our earth. The town started accepting everyone for who they are and the titans where treated very well by the community for giving them belief and a sense of pride where justice could be achieved for everyone. In one circumstance Coach Boone had been called a monkey but as the team was well disciplined and respectful of everyone this only inspired everyone in the titans to work harder for each other which resulted in a win not only for the game but for the team to change another persons perspective on racism and achieve the justice they deserved. When the injustice of Coach Yoasts hall of fame removal and the tragic accident of captain Garys car crash It showed in the final game they would win a come from behind victory and Coach Yoast would ultimately not resort to cheating and instead achieve his justice by helping his black partner Coach Boone achieve their goal togeather rather than resort to backstabbing and cheating to improve his own reputation and achieve justice on earth for himself and Coach Boon. This showed that even though Gary had his tragic accident he achieved hiss goal with his teammates of winning the final and teaching the community to respect everyone no matter what there race. This film was a great example of justice being achieved and giving everyone hopes through the Coach Boones leadership skills and charisma to inspire a team, community and a nation. The film showed how these people working together and being respectful of each other can truly inspire and set an example for everyone to achieve justice on earth. Treating everyone equally and teaching them the injustice of what had happened because of the war over race ultimately inspired the boys and the nation to achieve justice for everyone on earth.

Acknowledgement Essays

Acknowledgement Essays Acknowledgement Essay Acknowledgement Essay Chapter 1 The Problem and its Background Introduction The term RFID refers to Radio Frequency Identification, a technology which uses radio waves to automatically identify items or people. Most commonly this involves the use of an RFID tag and a reader device. In general terms, Radio Frequency Identification systems consist of an RFID tag (typically many tags) and an interrogator or reader. The interrogator emits a field of electromagnetic waves from an antenna, which are absorbed by the tag. The absorbed energy is used to power the tag’s microchip and a signal that includes the tag identification number is sent back to the interrogator. The use of a wireless non-contact system that uses radio frequency  electromagnetic fields  to transfer data from a tag attached to an object, for the purposes of automatic identification and tracking. Some tags require no battery and are powered and read at short ranges via magnetic fields (electromagnetic induction). Backround of the Study Tanauan Institute has already been using the Library System. Since the institution is already using such technology, these will be the first time for the institution to use Radio Frequency Identification. The researchers thought of maximizing its use by creating a system that will track the students who borrowed books, which will be having RFID stickers for monitoring purposes, in the library. Currently, the school’s library is using the â€Å"Library System† in monitoring the books, which has a number of limitations. It is not capable of generating reports that can determine the books that are mostly borrowed which can help them decide on the number of a particular book they will be purchasing in the future. It is also using Microsoft Visual Basic for the system’s database which can only store very limited information. On the other hand, the system that the library is using in recording the attendance of the users cannot help them in identifying the library users of the month. The librarians need to manually count the number of times each student had logged in the system. Lastly, they have also no means of reminding the library users regarding their borrowed book Statement of the Problem Not capable of generating reports that can determine the books that are mostly borrowed. No means of reminding the library users regarding about their borrowed books. Manual counting the number of times each student had logged in the system. Objectives of the Study Generally, the researchers aim to design and develop a system that would enhance the use of the current Library System with the help of RFID in the said Institute. Specifically, the study aims to: Design and develop a system that will generate reports to determine the trend in book borrowing Use MySQL for the system’s database Determine the library users of the month in just a click of a button Remind the students and faculty members regarding their borrowed books Test and evaluate the system’s accuracy and reliability Scope and Delimitation There would be some limitations to the project that should be taken into consideration. This study limits its coverage to the students of the Tanauan Institute only. It will be conducted for two semesters which consists of 10 months. Two low frequency ACR122U Smart Card Readers will be used for the system: one for the monitoring of books and the other one for the recording of the attendance. The system will be written in Microsoft Visual Basic 2010. The database that will be incorporated with such is Microsoft My SQL. It will execute only in platforms running Windows Operating System. The applications of the system will only cover the monitoring of books and tracking of the borrowers. Other unavoidable circumstances, such as power interruptions and speed of access, and other more complex areas of RFID Technology, such as securing the data, are no longer part of the study. Conceptual Framework For the researchers to be able to come up with a Radio Frequency Identification Reloading System, they will need very flexible and versatile knowledge in using the VB. NET programming language and in using the MS Server 2008. They will also be needing materials such as ACS Readers, tags which should be compatible with the reader and a desktop running Windows operating system. The related foreign and local studies and literature would also be of big aid to them because of the given information and problems with solutions of these materials. With all the knowledge, the materials to be used and the related resources, the researchers will need to carefully plan the whole study which is going to be the foundation of their research as a whole, gather and analyze data before they design and code the system. After the coding stage, the researchers need to test and evaluate their study. If necessary, modifications should be done to perfect the system. Conceptual Paradigm Below is the figure of the conceptual paradigm of the study: NOTE:::: REVISED PARADIGM MAKE A NEW DIAGRAM.. PLACE IT HERE!!!.. Figure 2. Paradigm of the study Definition of Terms Accuracy is a characteristic of a reliable system achieved from a number of tests and evaluation. Circulation Management is a division in the library which is in charge of managing the borrowing and the returning of library materials. Collection Management- is a division in the library which is in charge of maintaining the collection of the library materials through adding or updating records. Database is an organized collection of data needed for storing, updating, retrieving and viewing information for a particular system. Library Management System is the system which will be an aid for monitoring the books and tracking and reminding the borrowers in a certain library. Radio Frequency Identification is one of the newest identification technologies that use electromagnetic fields to transfer and read data that will be integrated by the researchers in this study. Chapter 2 Related Literature and Studies A. Related Literature Foreign Literature Holloway (June 2006), Microsoft EMEA Manufacturing Industry Solutions Architect, wrote a white paper which explained the components of a basic RFID system and how it works. According to him, an RFID system is composed of three important pieces of equipment such as: (1) a small radio device called a tag, or the transponder, which contains the data, (2) the reader, or the interrogator, that transmits and collects data to be downloaded from and uploaded to the tag, and (3) the host computer installed with an RFID software to process the data into valuable information. Daniel (2004) summarizes the operation in a basic RFID system as discussed below: First, the tag will enter the RF field of the Reader then, the RF signal will power the Tag that will transmit the ID with other data which, on the other hand, will be sent to the computer by the Reader. Then, the computer will be the one sending data to the Reader which will be transmitted to the tag. In a paper published by Mitrokotsa and Douligeri (2009), â€Å"Integrated RFID and Sensor Networks: Architectures and Applications†, they discussed and differentiate RFID and Wireless Sensor Network (WSN) Technologies. They also discussed why these technologies should be implemented to various fields of business and their requirements. Since the proponents will be using RFID, the tips, which are proven effective, given in this study on how to have better RFID-based systems will be of big help in conducting their study. Soldatos (2010) formulated a study entitled Rich Client Application for RFID EPCIS Repository wherein he created software which intended to provide a UML-like graphical representation of the business locations, and read points of an enterprise with a more user friendly RFID-based software system. Dhanalakshmi and Mamatha (n. d. ) wrote a paper wherein they discussed the project that they created entitled â€Å"RFID Based Library Management System† which is very similar to the study being conducted by the proponents. In their study’s conclusion, they have indicated and proven that RFID in the library speeds up its transactions such as book borrowing, returning, searching thus enables staff to do more of its responsibilities. Mutigwe and Aghdasi (n. d. also conducted a study entitled â€Å"Research Trends in RFID Technology† wherein they have given attention at continuing research activities in the field of RFID and talked about the possible major burdens that RFID Technology is facing today such as privacy, high costs, and social and legal concerns. Local Literature Garcia (2009) made a study, â€Å"Student Recognition Using Radio Frequency Identification for Tarlac State University†, which was undertaken to develop a system that would support and i mprove the current way of identifying students at Tarlac State University. The system is capable of importing excel files to update student records. Through the images and the information displayed by the system, security officers find it easy to identify the students entering the school campus. Reports can be generated for administration and filing purposes. The concern of security was also addressed because the system can control users and produce integral records. Similar to the study of the proponents, the system that they will create can also generate reports for monitoring and inventory purposes. Another study which also focused on the record keeping of students who enter and exit the school premises is the â€Å"Design of RFID Interface System: A Prototype† conducted by Engr. Dellosa (2007). He designed a circuitry capable of indicating the arrival and departure of the students in such a way that the students can also be notified. He also developed software capable of capturing and recording the student’s names together with their time of arrival and departure within the school premises. B. Related Studies Foreign Studies A study of Botterman and Oranje (May 2009) entitled â€Å"Study on The Requirements and Options For RFID Application in Healthcare† proved that RFID Technology is versatile and can also bring improvements in the field of healthcare. It also proved that the speed of access and speed of processing of transactions, the inventory of equipment, and the monitoring of the patience and employees can be improved by RFID. Lastly, Zherdev (2011) performed a study, â€Å"Storing and Reading Sensor Data from Battery Assisted Passive RFID†, which dealt with tags of battery assisted passive-type and ISO 18000-6C standard. His study evaluated and improved a system designed to transmit information about the bearings status of railway wagons. It is related to this study being conducted by the proponents since they will also be using the passive type of RFID tags. Shariff of Longitude Consultancy Services made a proposal for schools to implement systems incorporated with RFID Technology for attendance monitoring, library management, and logging in school buses. He reasoned out the needs for such advancement which made the proponents more eager in pursuing this study. Local Studies Studies were not only done in other countries but also in the Philippines as well. Filipinos also hunger for knowledge and improvements in the field of Technology. One of the pioneers in using RFID Technology to make its transactions faster and more efficient is the Mapua Institute of Technology with its Cardinal Plus Model which made many transactions convenient ever since it was introduced to the Institute such as securing student identification upon entering the campus and online grade access of students. This study is somehow related because both implementation targets are in universities. A study conducted by Balbacal (2005) entitled â€Å"Automated Bus Fare System† is related to the system that the researchers is planning to create. In Balbacal’s system, she used reloadable cards which used barcodes in riding a bus and paying for the fare. The amount to be reloaded on a card depends on the user’s capability to pay. However, Aquino et. al’s (October 2009) â€Å"Automation of the Movie Theater Charging Procedures Through the Use of RFID† proved that RFID Technology can also improve the field of entertainment. Their system was able to eliminate queuing problems improve charging operations of the system implied on improvement in the efficiency, reliability accuracy of the operation. Even though the field of implementations of their study and the researchers’ are not the same, the purposes of both are identical. The researchers want to eliminate the redundancy in recording the attendance of the students which the existing system is not capable of. In Villame’s (2010) research entitled â€Å"Carrier Suppression Locked Loop Mechanism for UHF RFID Readers†, he made an improvement on the front-end architecture of UHF RFID readers to address the problem of having the performance of the reader limited as the active components in the receiver become saturated due to having the readers being exposed to strong carrier leakage signals because of the antenna reflections and limited isolation of circulators and directional couplers. This would be of great help but the researchers indicated that other complex aspects of RFID such as isolation of signals will not be covered by this study. Chapter 3 Methodology Research Design In every study, the method of research to be used is very important. The whole study somehow depends on such method because it will determine how the data collected will be handled. The goal is of this method is to acquire accurate and systematic data which are based on facts that can be used in averages, frequencies and similar statistical calculations. It often uses visual aids such as graphs and charts to aid the reader in understanding the data distribution. The researchers are also taking into consideration the use of developmental research. In a paper published by James D. Klein et. al, (n. d. ) they define it as studies that involve the production of information with the goal to improve the development of instructional design, development, and evaluation. Such research is based on either situation-speci? c problem solving or generalized inquiry actions. Sampling The researching process will take place at the Tanauan Institute, a institute located at J. V. Gonzales St. Pagaspas Tanauan City. The researchers have chosen this institution because it is where they are currently studying and it was the first time the school will use the RFID system. Instruments/Tools The primary tools that will be used in gathering the needed information for this study are researching and browsing from the net. The secondary tools will be the related foreign and local literature and studies that the researchers have gathered. Gathering Data The process of the data we gathered is divided into five phases namely: Identify and Analyze the Requirements. In this phase, the proponents will gather all possible requirements that the end user expects from the system to be developed. These requirements will dictate the functions that will be integrated in the system. Design the System. Upon gathering and analyzing the requirements of the end user, the designing of the system will follow. This phase is important because the system’s design will dictate the overall system architecture. If the proponents have inquiries about the system, they can gather and analyze the requirements again. Code the System. After designing what the system will look like, the proponents will start the actual coding of the system. This design of the system will be the basis of how the system will look like. Test the System. To ensure that the system is efficient and reliable, several tests will be conducted. If the system fails the testing phase, the proponents will go back to the second phase which is designing of the system. 5. Acceptance of the System. After having proven that the system is functioning well, it will be deployed to the end user and they will be trained on how to use it. They will evaluate if their requirements and expectations have been met. If not, the proponents have to go back to the first phase again and start all over. Software Specification |Operating System |Microsoft Windows XP or higher | |Microsoft SQL Sever |2008 or higher | |Microsoft . Net Framework |4. 0 or higher | |Windows Internet Explorer |7 or higher | |ACS CCID Driver | | Hardware Specification |Memory |2 GB or higher | |Processor |2. GHz or faster | |Hard Disk |At least 3GB of available space | |Monitor |1024768 or higher resolution | |Printer | | |ACR122U NFC Reader | | Gantt Chart ILAGAY DITO†¦ Chapter4 The Proposed System User and Needs of the Study Proposed system is the Tanauan Institute New College Library Management System. Through our software user can add books, update books, search books, update information, edit information, record the attendance of the borrowers, borrow and return books in quick time. Our proposed system has the following advantages. ? User friendly interface ? Fast access to database ? Less error ? More Storage Capacity ? Search facility ? Look and Feel Environment ? Quick transaction All the manual difficulties in managing the Library have been rectified by implementing computerization. Analysis General Features of the System RFID technology has been applied in libraries just over a decade, though the technology is not yet mature but its rapid development allows more and more functions to be achieved. RFID is still in its developing stage in libraries, the technology originally can only simply achieve the self-check-in and check-out function, but till now, the effectively inventory, logistics and sorting the returned books are all able to be achieved. The library can adopt RFID technology aim of improving the self-service. Patrons can borrow and return the items using automatic lending machines, which require a library card and a PIN. Self-service becomes much easier with this new technology as it does not require line of sight and max. 3 items can be borrowed at a time. So far, the frequency of self-service is nearly 100%. Besides, sorting the returned books greatly reduces the library staffs manual work. As RFID label has anti-theft function, there is no need for an extra alarm strip to be attached to the item, which makes the borrowing and tagging tasks a lot easier accordingly. Chapter 5 Implementation Program Testing We the researchers have come up to test the system with different specifications to know the compatibility of it to the system. The researcher make sure that they will not have any problem during implementation and also we asked the end user to see and to test the system, if they had any wanted to changed or add on the system. To ensured that the system is efficient. Documentation Plan The documentation has seven chapters. The first three chapters were made during the first part of the study, these three chapters guide the researcher to create a system what look alike. The last four chapters were made at the second part together with the system proposal. Data Management Plan We the researchers gathered data by acquiring information on some schools, browsing the net, getting some ideas with the old system, library research, asking personal questions and getting information through handouts. Resource Management Plan The development of the software would not be possible without the following components: A. Computer – an electronic device uses to manipulate data. B. USB Flash Drive – is a data storage device that includes flash memory with an integrated Universal Serial Bus (USB) interface. C. Hard Disk – wherein the system is stored and the soft copy of the documentation is saved. D. Ballpen Paper – use for writing down the documentation and other important information. E. Internet – the primary tool of the researchers that used to gathered the needed information or data. F. Printed Materials – used for additional reference. G. Printer – used to provide hard copy of the program code and documentation. All the data which were manipulated throughout the process of the study were stored in the computer hard disk drive with back up on several flash drives. Quality Assurance Plan The researchers ensure the most precise and direct method of providing the software with highest regard on procedures thereby providing easy access for end user. Accuracy and efficiency of the software is likewise ensured thereby providing the end users guaranteed reliable software. Security Plan The researchers ensure that all data, documentation, codes and system were provided sets of back up. And though the system, the researchers put a login form on the system to ensure that no one can access or view, only the end user can use it. Training Plan Formal training on how to use the program for end users will be provided by the researcher, if needed. The system is intended to use by an end-user acting as the administrator and could add another administrator that will do the same task to facilitate all their activities. Chapter 6 Maintenance Upon the implementation of the system, that is downloading and debugging the entire system, the researchers assures extension of services for future modifications or updates of information already published responsibilities: 1. Provided with the necessary updates on information, the researchers will plan the necessary layout modification, if needed. 2. According to the layout planned, necessary changes in the codes follows. 3. Appropriate testing of the modified code is to be done to ensure efficiency and accuracy. 4. Updating other details is provided by the system 5. Providing back-up of the modified code 6. Providing updated documentation 7. Entrusting all the used resources to the appropriate authorities. Hardware maintenance is beyond the duty of the researcher. Chapter 7 The Summary of Findings, Conclusions and Recommendation Summary Library Management, particularly Circulation and Collection, in Tanauan Institute uses a semi-automated system which has a number of limitations such as incapability of automatically generating reports and statistics, and loss, inconsistency, and in accuracy of data. Since this institution is already using RFID Technology in monitoring the attendance of its students, the researchers attempted to resolve such issues by creating an RFID-Based Library Management System using Microsoft Visual Studio 2010 and Microsoft SQL Server 2008 with the students and the librarians as the target beneficiaries in mind. Modified waterfall was the research model used by the researchers which helped them in the distribution of the tasks they need to accomplish. Descriptive method of research was also utilized in order to gather data more accurately and systematically with the use of data gathering tools such as surveys with open and close ended questions, interviews, and time motion study represented by graphs and tables to test and evaluate the system’s reliability and the user’s acceptance. Conclusion Through months of conducting this study, starting from the data-gathering-phase up to the deployment-phase, with the aid of the surveys, interviews, and time motion study analyzed, the researchers concluded the following statements about their Tanauan Institute New Library RFID-Based Library Management System: The system was able to generate statistics and reports by just a click of a button which can help them in forecasting and identifying the library users of the month. They can now finally be assured regarding the accuracy and reliability of the data generated. The system can cater larger amount of data which is what the library practically needed at this time that they are upgrading the amount of their collection. Data loss will now be finally eliminated. The system was able to track whom librarian is accountable for the loss of a returned material. The system was able to help them in reminding the students regarding their unreturned materials. Recommendations For the future researchers to improve, the researchers suggest the following: Module for printing of a receipt-like for library users as a confirmation of the material that they have returned or borrowed Module for printing of a book-card-like after adding or updating a particular library material so that librarians can now generate it with just a click of a button Module to Include visitors who don’t have RFIDs LAGYAN PA NG RECOMMENDATION YUNG NDI NYO NAGAWA..

Pompeii essays

Pompeii essays Pompeii Pompeii was an exciting town of 20,000 inhabitants, sitting barely a mile away from the foot of Mt Vesuvius. After the eruption of Vesuvius, Pompeii was buried beneath 15 feet of pumice and ash. This helped to preserve the remains of Pompeii over the years. The excavations by Al-Cubierr, Winkelmann and Fiorelli proved that Pompeiis citizens lead a social, political and economical lifestyle. 19th century archaeologist Giuseppe Fiorelli introduced some of the highest standards of excavation at Pompeii. He invented the plaster cast technique for reconstructing the buried victims of Pompeii. The fine details of the plaster cast showed the different types of clothing and facial expressions. The victims skeletons also provided information on health, age, sex and living standards. These methods proved to be a reliable source of evidence. The city plan shows us the different types of buildings that they had and how they were situated. The different buildings include; Forums - political debates and religious ceremonies were preformed, Basilica (town hall) for legal and government business, Temples were dedicated to their Gods, Amphitheatres Blood sport stadiums, Theatres held drama performances, Palaestra (gym) For physical fitness, Thermae (public baths) Cleansing and socializing atmosphere, and Tombs and Commercial areas for the markets and stores. The streets and roads divide the town into rectangular blocks called insulae. The narrow alleyways, roads and building ruins can still be seen in Pompeii. The three types of Pompeii houses were the atrium house (simplest house), atrium peristyle (verandahs and porches), villas (expensive and luxurious) and apartments (rented rooms). The excavation of the Tragic Poets house showed that it was renovated by a wealthy owner in the last years of Pompeii. ...

Managing across cultures- Cross cultural observation Essay

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Motivation Research Paper Example | Topics and Well Written Essays - 1500 words

Motivation - Research Paper Example It is the leader’s job to ensure that they understand their fears to be unfounded. With the transition to a big corporate structure from a small organization kicks off, employees naturally respond by making the assumption that they will only be single employees in a company employing thousands of workers. Their belief in making an impact on the new organization’s goals could lead to a reduction in their earlier exemplary efforts (Pritchard & Ashwood, 2008). One of the major changes that the new acquisition brings involves reconfiguration of working spaces that will reduce privacy, which was one of the signature aspects of ZYX Company. For this reason, it will be the manager’s responsibility to ensure they realize the reason for the workspace reconfiguration and that they are set up to continue playing an essential part in the company’s future and retain their motivation. This paper will seek to create a comprehensive plan that will motivate them to coopera te and support the changes. Planning the Project In planning the project, there are various important levers that a manager can use, including coming up with communication, sponsorship, coaching, training, and resistance management plans. Managing the motivation of employees requires a holistic set of components that support the employees as the manner in which they work changes, for example, with the reconfiguration of working spaces (Green & Butkus, 2009). The communication component should recognize how communication will fit in the larger process of change. Used in this context, communication becomes more effective as it gives the employees information in the proper sequence to aid the employees in internalization of the change, while also improving their motivation. With regards to the sponsorship component, the manager should be the sponsor and plays the role of participant, coalition builder, and direct communication. A sponsorship roadmap will include what the sponsor will d o in conjunction with the senior managers, the project teams, and with front line employees, while also breaking down the project into initiation phase, design phase, implementation phase, and closeout phase (Green & Butkus, 2009). Sponsorship of the change is critical to the employees’ motivation to participate, while it also reinforces their belief that the change is there to stay. The planning will also require a coaching component that involves the direct supervisor and employees. The manager will have to play a critical role in communicating the change and ensuring the employees retain their intensity. The coaching plan will outline the steps required to improve skills in relation to change with both individual and group sessions in engaging front-line employees (Green & Butkus, 2009). However, proxies must not be used in coaching as it gives the feeling that the change might not last. Employees will always want to hear about the change from their manager. The managerâ⠂¬â„¢s change desire will have a direct influence on the desire from the employees. The training component will seek to improve capabilities and skills and should be focused on knowledge building. However, training should come with the implementation of sufficient desire and awareness for it to be effective (Green & Butkus,