Mobile Sensor Network for Indoor Environment

Mobile Sensor Network for Indoor Environment 4 node sensor network without collisions. Update of every sensor reading in the network at least once per second (available from all nodes). Single frequency channel (i.e. no frequency multiplexing permitted). Error checking (CRC) included to ( Measure at least 2 parameters (e.g. temp, light..) Data presented on serial I/O port in a format that is easily readable on a text terminal. 1. Background knowledge 1.1. System structure The aim of this coursework is to design a mobile sensor network for an indoor environment, communicating with a 2.4 GHz wireless link (IEEE 802.15.4). All the sensor nodes can realize data link, which means each board can get others information. All the sensor boards have the function of receiver link to the computer, and can present the sensor data (for all nodes in the network) to the serial I/O port in a format which is easily to be understand on a text terminal. If the nod which connected to pc is broken, the other 3 nodes can replace it and realize the function of receiver. Each sensor node will include a number of sensors interfaced to a microprocessor (for our group temperature, sounds, touch and light). The microprocessor will gather sensor data, communicate with other sensor nodes via a wireless transceiver, implement a network protocol and provide a PC interface via a serial I/O port for data display. The structure of whole system is as follow: Figure 1 Architecture of Wireless Sensor Network 1.2. Basic hardware The principle hardware used in this project is the PICDEM Z [3] development board from Microchip Technology Inc. There is a PIC18F4620 microcontroller on every node board and every group has 4 board available. The PICDEM Z has a prototyping area which must not be used for circuit construction. First, we need veroboard to construct a circuit, then interface it to the header J6. The next figure shows the structure of the board. Figure 1 The structure of the board And we also have other devices can use in this course: 1. 9V DC power socket (J1) for operation from mains adaptor. 2. 9V battery terminal (BT1) for mobile operation. 3. ICD connector (J5) for connection to MPLAB ICD3 in-system programmer/debugger cable. 4. RS232 serial port connector (P1) for connection to PC COM port. 5. Microchip MRF24J40 2.4GHz transceiver module connected to J2. 6. LEDS RA0 and RA1 for indication. 7. Push buttons RB4 and RB5 for simple logic input. 8. Header J6 giving access to analog and digital I/O pins Vcc (3.3V) and GND. This may be used to interface additional sensors. 1.3. Microchip MRF24J40 2.4GHz The MRF24J40 wireless transceiver [5] provides the physical layer for your wireless communication network. This is a 2.4GHz (IEEE 802.15.4 compliant) device which transmits data rates up to 250kbps and is connected to the PIC via SPI bus, as well as a small number of digital I/O pins. The picture of Wireless transceiver is as follow. 1.4. MPLAB-ICD MPLAB-ICD is an inexpensive development tool for MICROCHIPs PIC16F87X series MCU. MPLAB-ICD is an online debugger, and a programmer. It works in the MPLAB-IDE integrated development environment, and use online serial programming technology of MICROCHIP (In-Circuit Serial Programming), the monitoring program is embedded to achieve real-time simulation in the simulation of the MCU (PIC16F87X). The simulation head is directly connected to the MCU socket of the application system, running the users application as a PIC16F87X. The picture of MPLAB-ICD is as follow. 1.5. Wireless sensor network Wireless Networks use radio waves, infrared, or any other wireless media to link to any devices. It can cover a large area, in which case it will be called a Wireless WAN, or it can cover an area or some floor of building, such as school, hospital and railway station, in that case Wireless LAN (WLAN) appear and describe the situation[4]. It appears a large number of wireless communication standards nowadays, including ZigBee, Wi-Fi, WiMax, GSM (Global System for Mobile Communications) et al. Wireless sensor network (background) became a more and more popular way to solve the problems of large-scale tracking and monitoring applications because it has low-data-rate, low-energy-consumption, and short-range link network [1]. It give people a chance to monitor and control the physical world in a more simple way. WSN applications include many ways in our life, such as industrial monitoring, security, electronics industry, military sensing, asset tracking and home automation. WSNs research has mainly pay attention to energy consumption, routing and data transmission, particularly focusing on collecting and data summary in specific networks with an associated sink node, called a WSN gateway [1]. Some research has carried out the interface of different sensor networks for a single or complex applications. Wireless sensor networks is aimed to monitor and control the physical data of environmental conditions at remove locations and it can collect their data to a main location and send their control command to achieve the result of remote control. A WSN includes plenty nodes, ranging from a few to hundreds and thousands, in addition each node may be linked to one or more other nodes. One node can be designed for carrying out one or more different sensors which have various functions and we can also design combined sensors choice to complete complex use or exchange data with another network[4]. A node for sensing is called a sensor node, everyone can collect the data of other sensor node. As a result, any place with a sensor node can get all the data with a very fast speed at any time. 1.6. Error detection Cyclic Redundancy Check Error detection segment is necessary in a data transmitting system since the correctness and efficiency of data transmitting must be ensured. In this project, there are 3 approaches which can be applied to error detection: parity bit, check sum and cyclic redundancy check (CRC). Parity bit is also known as check bit, the function of which is to judge whether a number of 1-bits in the string is even or odd by adding a bit to a string of binary code. The realisation is that the bits with value 1 is counted for even parity while the coding reverses for odd parity. Although parity bit is easy to implement, the shortcoming is apparent that only when there are 1, 3, 5, à ¢Ã¢â€š ¬Ã‚ ¦ bit(s) errors can the error be detected. The principle for check sum is to define a string with a small size with designed algorithm of calculating, and the result of the calculations of before and after the transmitting will be different even the data changes slightly so the error could be detected in this way. Similar to parity bits, the disadvantage of check sum is that error cant be detected under some circumstances. Cyclic redundancy check (CRC) is a method of error detection that is easyto be implemented by shift register and look-up table in S/W. The process is shown in figure1. In this project the value of P(z) is 0x91 (11001 in reversed binary) which is known as generator polynomial and the divider. Assuming that the data needed to be transmitted is 110011000, then we have the message polynomial D(z). C(z) is the remainder which is calculated by D(z) divided by P(z). The realization of division operation is by XOR. Only when the least significant bit of 1 byte of the message is 1 will it XOR with CRC polynomial, then we should shift it to the next bit and repeat the XOR. At the transmitter, the string of CRC depends on the whole frame on a bit-by-bit basis with binary division. And at the receiver, the received bit string is again divided by the same bit-by-bit basis with a serial shift register. The resultant CRC result should be all zeros at the end of the frame, or there must be errors in the process of data transmitting. Grahame Smillie, 10 Bit error detection and correction, In Analogue and Digital Communication Techniques, Butterworth-Heinemann, Oxf ord, 1999, Pages 185-230, ISBN 9780340731253, http://dx.doi.org/10.1016/B978-034073125-3/50012-7. 2. System Design 2.1. Sensor design and calibration and Analogic digital converter ADC In our group 4 kinds of sensor are designed to meet the requirement, and they are temperature sensor, light sensor, touch sensor and sound sensor. In order to obtain data from all the 4 sensors in the wireless network, a PCB board is required to connect to the sensor node board. In the lab, a breadboard is available for testing the circuit. When finishing the circuit on the breadboard, it can be interfaced to PC to have a preliminary test. If done, a PCB board will be used to finish the final product which can connect to node board. The method of calibration is to get the value of light, sound, temperature or touch that is detected using physical measurement. For example, if the temperature of the environment T0 and the result of the ADC conversion D0 that collected by the sensor in the same testing environment are known, we can derive the proportional function of temperature and ADC data with another pair of coordinate (T1, D1), which is obtained by changing the temperature of testing. Then the code that controlling display of temperature value should be modified so that by the time the temperature of the environment changes, the displaying value on the PC is exactly the temperature. Code for this part is shown as following: 2.1.1. Temperature sensor Negative Temperature Coefficient (NTC) thermistors are temperature sensitive semiconductor resistors which decrease in resistance value when absolute temperature increasing. Change in the resistance of NTC thermistor can be brought about either by a change in the ambient temperature or internally by self-heating resulting from current flowing through the device. (NTC Thermistor Discs and Chips | Ametherm, Ametherm, 2017. [Online]. Available: http://www.ametherm.com/thermistor/disc-and-chip-ntc-thermistors. [Accessed: 07- Jan- 2017].) Most of the practical applications of NTC thermistors are based on these material characteristics. Time and temperature are two of the most frequently measured variables. There are various ways to measure temperature electronically, most normal is by thermocouples and negative temperature coefficient (NTC) thermistors. In addition, NTC temperature sensors can operate over a wide temperature range (-55 to +300 °C). They are stable throughout a long time, and are small and cheaper than other kind. [3] Figure 1 circuit of Temperature Sensor It can be seen in the figure 1 that temperature Sensor is a more complex circuit design. On the left part It=Vcc/(R1+Rt) and Vt=Vcc*Rt/(Rt+R1), then connect the line to the positive side of the LM358 amplifier to amplify circuit and Vt becomes the input of the amplifier. After that, use formula V0 = Vt*(1+R3/R2) to get the voltage value of v0. From this formula we can know, the value of V0 depends on R3 and R2, so R3 and R2 are both simply chosen 10 Ohm. Then the voltage value of V0 is exactly twice as much as that of Vt. Next use formula to transfer ADC data to temperature, when it comes to the lab temperature (23 degrees Celsius), ADC data is 613. While it comes to the people body temperature (abort 38 degrees Celsius), ADC data become 530. Finally, we can calculate the linear parameters by these two sets of data. 2.1.2. Light sensor The Light Sensor is a passive devices that transfer light energy visible or invisible into a output of voltage signal. Thus Light sensors are more commonly known as Photoelectric Devices or Photo Sensors [2]. Photoelectric devices can be classified into two main categories, those which generate electricity when illuminated, such as Photo-voltaics or Photo-emissives etc, and those can change their electrical data (voltage) in some way such as Photo-resistors or Photo-conductors. [2] Light sensor is the easiest sensor of our 4 sensor, so we also use the simplest structure, when luminance become strong, the value of photosensitive resistance become larger. Thus the voltage of Vt increase which result in the raise ADC data. Then use formula to transfer ADC data to luminance, when it is dark (lux 0), ADC data is 30. While it comes to the lab light (about 330 lux), ADC data become 895. Finally, We can calculate the linear parameters by these two sets of data 2.1.3. Sound sensor 2.1.4. Touch sensor The MPR121 is the second-generation sensor controller after the initial release of the MPR03x series devices. The MPR121 will feature increased internal intelligence in addition to Freescales second generation capacitance detection engine. Some of the major additions include an increased electrode count, a hardware configurable I 2Caddress, an expanded filtering system with debounce, and completely independent electrodes with auto-configuration built in. The device also features a 13th simulated electrode that represents the simultaneous charging of all the electrodes connected together to allow for increased proximity detection in a touch panel or touch screen array [5]. 2.3. Time Division Multiple Access TDMA It is required that there are at least 4 nodes of sensor without collision in a wireless transmitting network based on a certain channel. Each sensor must be ensured to be able to receive and transmit, in other words, each node can serve as both a receiver and a transmitter. The node which connects to the PC is responsible for the display of the data that collected by each sensor and each sensor is supposed to send the data string to the chosen node within 1 second. There will be collision with the four nodes if we dont define the order of the data transmitting and receiving or just simply define by applying time delay, hence TDMA is necessary to meet requirements above. TDMA is a method of communication technique that derived from the P2S (parallel to serial) conversion. In the process of TDMA of this project, receivers obtain a same signal at the same time but only the appointed receiver reacts and does the next action, which is then transmitting and serving as new transmitter, and the new transmitter will wait for the next appointment without doing nothing unless it is appointed once again, which means it gets the same order in a new loop. The process repeats and there will not be data collision in the transmitting and receiving. As is illustrated in figure2, there are 4 nodes so 4 slots are needed in 1 second according to the requirement, hence each slot takes up 0.25 second, during which time of period each node should finish data transmitting, so the calculation of the time that is needed for sending and receiving is necessary. 2.3.1. Data packet structure 2.3.2. Timers We apply timer0 to control the time of running, different initial values have been given to timer0 in each slot so that transmitting and receiving within 1 second without collision can be ensured. In this case, node 4 is the main node which connects to the PC. The start of the process is the transmitting of node 4, and by the time other 3 nodes receive data from node 4, the text packet ID of the transmitter will be checked and only node 3, which is the transmitted ID 4 minus 1, will display the data that collected by node 4 and transmit its own data collected by its sensor. Following actions will be carried out by node 2, and node 1 within a certain time of period, like shown in figure3. Figure3 4. IoT Data Service and Visualisation

The Sun Lord of All Ages :: Sun Culture Cultures Cultural Essays

The Sun Lord of All Ages "Sun, heavenly body whose light makes our day, member of the solar system round which the planets revolve "( definition according to the Webster's New Elementary Dictionary). In the literature of the mythology, the legends that relate to the creation of the shiny body occupy a very important role. It was natural for ancient cultures in remote times to speculate about the creation of the visible universe, and specially about the creation of the sun. The sun is presented in a lot of different myths as born from one of the eyes of The Creator God, or as springing into life as the sacrifice of the life of a god or hero, or sometimes as the Supreme Creator itself. While traveling through the different cultures existent in the ancient times, we can recognize common aspects in their different myths. In the case of the sun related myths, we can see common aspect concerning: his creation, and the sun-man relationship. Even though the sun plays an important role in almost all the creatio n myths, there are some cultures were his role it is more important than in others. For example, in the Egyptian myths he is presented as the supreme creator, in the case of the Toltec and Aztec myths he is mostly related to the creation and destruction of the five different worlds and the humans that lived in each of them. In order of importance of the role of the sun in the different cultures, the Egyptians are one of the first ones. For them the sun was the greatest god of all. According to their legends, at the beginning , the world was a waste of water called Nu, from were the sun god was born. "He first appeared as a shiny egg, which floated upon the water's breast and the spirits of the deep, who where the Mother and the Father, were with him there as he was with Nu, for they were the companions of Nu. Ra [Egyptian name for the sun] was greater than Nu from whom he arose. He was the divine father and strong ruler of gods" (Mackenzie, 1). This was the Egyptian explanation for the appearance of that shiny body in the sky, who kept them warm and gave them light during the day, and caused plants to grow which they needed as food to survive.

Human Resource Management and Industrial Relations Department

An efficient work force is important to the overall success of any organization and this also has implications for the overall success of a country’s economy.Not only do organizations require adequate numbers of workers to fill essential positions, these workers need to be highly productive so that the organization makes optimal use of the capital it invests in labour. It is evident therefore that the overall productivity of the workforce will go a far way in determining the eventual viability of the organization.Analysts have tended to link worker productivity with increased living standards, arguing that increased efficiency leads to increased remuneration which therefore improves individual as well as national living standards (Monthly Labour Review, 2007).The counter to this position is that employees who are producing below a certain minimum standard may affect the productivity of the entire organization, so much so, that organizational productivity decreases over time.In these days of harsh competition, organizations cannot afford to make such grave mistakes when it comes to recruiting new staff members. All current, new and aspiring employees must have in mind the vision and goal of the company and work towards their accomplishment in the most efficient way possible.Seeing the importance of a productive workforce in determining organizational success, it is evident that organizations have to adopt appropriate strategies to attract the best employees to fill all positions within the organization.While it is difficult to predict, at the initial stages, the level at which a potential employee will produce, it is essential that organizations ensure that mechanisms are put in place which ensure that the recruitment and selection process results in the hiring of employees that will contribute to the overall productivity of the firm by bringing to the job high productivity.Recruitment and selection of employees to a firm cannot be a light matter but must be dealt with by individuals who are themselves highly productive and committed to the overall vision and goals of the organization.Recruitment and selection are functions over which the human resource manager has universal control. It is this category of employees in an organization who are closely conversant with the overall goals of the organization and who are in the best position to decide on appropriate candidates for employment.Management is a process of effectively taking advantage of manpower, materials and resources as well as financial power, to realize the aims of an organization. Since the 1990s the science of management control has witnessed significant changes at both the governmental and organizational levels.The society seems now to be evolving from one that has traditionally been hierarchical to one that features plural management. Nowadays various managers function within a single organization to carry out certain specific functions, decentralizing control.Manage ment science as a field of enquiry developed within large corporations. In the western world the management control literature was piloted at the beginning of the 19th century by theorists such as Taylor and Fayol among others (see Taylor, 1911).In this early era control was seen as an essential aspect and function of management. Control primarily involved the management control of activities, cash flows, people, organizational units and managers. However, as time progressed, the concept of Human Resource Management emerged as an improvement on previous management control models.The HR department is the locus through which the organization is able to meet and sustain its employment needs. Continued and improved worker productivity is therefore one of the primary objectives of the HR department.This department needs to be aware of the organization’s employment strategy, in order to assist by looking for the right talents to help this strategy. It is becoming increasingly clear that the job market is much like the market for goods and services. Employee recruitment has therefore become a mechanism whereby potential employees market their capabilities on the one hand and businesses attempt to recruit the best workers in the particular field (Breaugh, 1992).At the same time, it is of outmost importance that the Human Resources are managed in the most effective way possible in order to achieve the final goal of management control.HR management, through processes such as recruitment and selection provides aspects that link its activities with the strategy of the business itself (McKenna & Beech, 1995). Recruitment and selection therefore represents the first step in the management control processes. Although successful recruitment and selection are not hereby means towards achieving successful management control, there must be a good recruitment and selection system in place to contribute towards this end.This dissertation will attempt to address the twin iss ue of recruitment and selection. Taking the form of a Case Study, this paper will explore and discuss the various methods and procedures of recruitment and selection being used in a specific company – the Yintao Golf Club Co., Ltd. located in China.Aspects pertinent to recruitment and selection, including job descriptions and interviewing practices will be examined in this case study. By examining a single, Chinese company, the researcher will be able to broaden understanding of the Chinese characteristics of HR management. The researcher will attempt therefore to produce an understanding of the nature of Chinese management control at a miniscule level.

Public Health Systems around the World - 3125 Words

Peoples health is very different in other sides of the world. The health problems are different and the health care systems are various. People living in separate countries are in quite different position depending on where they live: in rich or in poor country, in developed or developing country. In this task I will write a presentation of heath care systems in the three different countries: Finland, United Kingdom and Ethiopia. United Kingdom represents a developed country and a Ethiopia is developing country. Finland is a country in northern Europe. The population in Finland was 5,4 million people in 2012, and the annual population growth is near 0% (The World Bank 2013). The population increased of 25 407 person during 2012, and 87%†¦show more content†¦A few of health challenges in Finland at the moment are obesity, smoking / dinking / drugs, and national diseases like heart problems, diabetes, musculoskeletal disorders, osteoporosis, mental health, allergy and asthma, cancer, dementia, infectious diseases and accidents. (Sosiaali- ja terveyskertomus 2010). 2.2 Private health care The Public Health Programme orders the municipalities to cooperate with other public or private agencies to promote the health of population in the municipality. Organizations have played an important role in health promotion and supporting citizens own role to promote their health. (Sosiaali- ja terveysministerià ¶ 2013.) Municipalities provide services for them self and by buying them from private sector providers. Private services focus mainly on specialised doctor visits, and 5% of hospitals medical treatment is produced in private hospitals. (Sitra reports 2009). All permanent residents in Finland have public helth insurance. People in Finland can choose to use private medical centres, doctors or other nursing professional services. Public health insurance replaces some patients self-purchased health care costs, but the deductibles are quite high, and everybody aren’t able to use them. (Sitra reports 2009). Ministry of Social Affairs and Slot Machine (RAY) assist financially organizations and a variety of health promotion projects every year. The grants areShow MoreRelatedHealth Care Systems Are Different In Every Country Around1603 Words   |  7 PagesHealth care systems are different in every country around the world. There are four main components that complete a health care delivery system, described by Shi and Singh (2015) as the quad-function model, which includes insurance, financing, payment and delivery of care (p. 5). 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We can hear the general public are debating about health care everywhere. In developed nations like the US, everyone should have health care. Some people believe that Obama’s health care system is effective. On the other hand, some people say that Obama care is not effective because the government canno t mandate the general public to have health insurance. Obama care is an effect, but

Copyright Law On The Planet - 1278 Words

â€Å"Only one thing is impossible for God: To find any sense in any copyright law on the planet† (Mark Twain). The concept of copyright in the United States has a large history. The first form of copyright in the United States stems from Article 1, Section 8, Clause 8 of the U.S. Constitution in the year 1787, where â€Å"Congress shall have power . . . to promote the progress of science and useful arts, by securing for limited times to authors and inventors the exclusive right to their respective writings and discoveries. These â€Å"exclusive rights† were originally extremely limited, as the first Copyright Act of 1790 only applied to maps, charts, and books. As time has advanced, copyright practices in the United States have undergone several reforms, among the most recent being the infamous Digital Millennium Copyright Act (DMCA) of 1998. Said act updated United States law to the requirements of the World Intellectual Property Organization (WIPO), such as placing limitations on the liability of online service providers for copyright violations made by users. The act, however, has been a subject of controversy in recent times, as some content creators abuse it to control access to their content. This is accomplished through methods such as copyright trolling, in which the copyright holder produces works solely for the purpose of litigation rather than distribution. Oftentimes, these practices are thought to be a violation of fair use, which enables copyrighted work to be used withoutShow MoreRelatedThe Issue Concerning The Ownership Of General Knowledge By Copyright, Trademarks, And Patents950 Words   |  4 PagesVincent Allard English 10th Ms. Rachuy 05/05/2016 The Issue Concerning the Ownership of General knowledge by Copyright, Trademarks, and Patents. 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Canada, as other progressed industrialized nations, has through the span of a century and a half developed a detailed and complex administrative framework to give Canadians an extensive variety of key administrationsRead MoreThe Economy and Health in Slovenia Essay1528 Words   |  7 Pagessimplistic allowing for people to buy and sell in more places, which would allow for a flourishing economy. Slovenia is an incredibly safe country for all, they have an incredibly low crime rate, and can be seen as one of the safest countries on the planet. Recently over the past 3 years, all of that is slowly changing; there has been a spike in crime, but nothing major at all. Slovenia is still a very safe country, as America is. In terms of Freedom from corruption, Slovenia is ranked 61st. Corruption

Easter Island Historical Analysis - 1308 Words

Easter Island, a mysterious and intriguing land lies on Chilean territory in the South Pacific ocean. The Polynesian people discovered an island that can allow researchers and linguistics to dive in and dig up remains and stories of the past. Easter Island is an isolated historical place that boomed in population and thrived in culture. The name Easter Island was born from the first European, Jacob Roggeveen, to arrive on Easter Sunday in the year 1722. The islander’s culture left a legacy that was important enough to get into the history books and minds of many. Easter Island is commonly known for the home of giant Moai stones that tourists today visit in awe. Few people understand the history of the Polynesian settlers that created many†¦show more content†¦Agricultural crops were grown throughout the island as well, and archeologists say that on their canoes they brought over goods to aid in their new kingdom crops.With a wide range of colonisation goods brought ab oard in addition to their chickens and sweet potatoes, the Rapa Nui was able to begin a new life. The new life the Rapa Nui tried to create was a complex high society. Each clan wanted to represent themselves, and they represented themselves by creating statues, They also used each of the Moai to worship ancestors and celebrate burials. The Moai, or ahu, were made out of large masses of volcanic stone that rested on the island. All of the Moai started out relatively small, but the growth of the society and statues positively correlated. At most, the Moai stood twenty feet high and had roughly an eighty-ton mass. The Moai are a significant example of the Rapa Nui wanting to achieve a complex high-end society from their hard work. Creating and moving the Moai statues around the island without modern technology took great strategy and skill. With a growing society, the kingdom was at its ultimate high with a population of 10,000 people.Unfortunately, the overly fast growing population suddenly came to a halt ( Foot, D. K. (2004)). In order to have a sustainable society, the environment it lives on must be nourished and preserved. In addition, the people that control the environment have to be

Impact of Customer Relationship Management on Hotel Business

Question: Write about Hospitality Project. Answer: Project title Assessing the impact of the global warming on hotel business Like every other sector contributing within the Australian economy, Hospitality industry does have a major role to play. Hotel businesses have become much predominant in the hospitality sectors of Australia and the earned revenue of the companies tends to increase the economic growth of the country on effective means. However, reports also suggest that, producing services in the hospitality sector also trigger significant pollution. Being a significant element of the society, it is important for the organisations to be aware of the level of the pollution their organisation is emitting. Being concerned about the volume of pollution would as well be constructive in account of developing significant goodwill for the organisation (Raab, 2008). This will eventually be effective towards achieving the organisational goals with precision. Identified problem The problem statement is the prime segment of a particular research paper that helps to develop a precise understanding of, what the researchers are concentrating upon. The main idea behind preparing this assignment is to identify and evaluate ways and alternate ideas for reducing the severe impact of pollution that the hospitality sector is causing within Australia (Singh, 2013). Reports also suggest that organisations often find it difficult to reduce the severity of the pollution their machineries cause. Due to the changing trend of customers today, it rather became a necessity for the hotels to be sincere in their efforts to save the "Plant Earth". Often organisation identified as sincere towards making the world a better place are recognized as the organisations with strongest brand image or goodwill. It is necessary for organisations operating within the hospitality sector to respect and adhere by this particular preference of customers from all around the world. Background of the topic Serving the aims and objectives of CSR policies are one of the most crucial tasks. Since, global warming is one of the most significant issues that the entire world is worried about; taking constructive steps ahead must be a common agenda for every commercial entity. Any lack in this particular term would neutralize every positive step made towards ensuring development of hospitality sector and organisations operating within (Baum, 2011). Thus smooth and effective policies must be developed by the organisations in order to serve the purposes. This would as well be constructive from the commercial perspectives as this will help in attaining more customers and avoid revenue declination in the market. Proposed solution to the identified problem For neutralizing the problems that pollution might cause, it is imperative for organisations to develop certain policies and frameworks. As discussed the problem in this particular situation is the constantly increasing level of a global threat that is global warming. Organising training program could be the most constructive way for familiarizing employees within the organisation. Since, the training must be highly precise, it also is a necessity to define the perfect alternatives. One of the most recent inventions that might replace the energy producing ways is the solar power. Using photosynthesis plate technology demands highly precise training sessions. Moving further, things might as well be on a highly constructive situation if the solar energy can be stored. This will also demand precise training session that employees must be put through (Singh, 2013). Proper understanding of the situations and problems will also be effective in terms of developing adequate solution to it. Review process After implementing the proposed solution the problems can be solved. It can be best reviewed by developing a website of the hotels where the officials and authorities can give their feedbacks regarding the developed policies of the hotels operating within the Australian hospitality sector. Research completed Many hotels of Australia have faced this problem. City Centre Budget Hotel in Australia has been recorded to have been suffering from significant issues where they have severely damaged the environment and even couldnt do much for reducing the impact of the volume of pollution that they are responsible for (Raab, 2008). Thus the solution mentioned above is much necessary for the hotel to implement for attaining benefit and increasing the revenue of the hotel. On the other hand, Marriott has been the market leader of the Australian hotel industry, the organisations understands the significance of treating the potential impacts of global warming. Emphasizing and adhering by the policies is a must that eventually helps in developing significant goodwill and brand image. Since, the Marriott enjoys an iconic position in the hospitality market, it rather is a necessity for the management to be aware of the perceived value of their brand image and justify the level of expectation their clie nts and customers have. Theoretical concepts Principles of CSR must be effectively followed by the management of the hotels who have poor CSR policies (Kumar Petersen, 2012). References Baum, T. (2011).Hospitality management. Los Angeles: Sage. Kumar, V. Petersen, J. (2012).Statistical methods in customer relationship management. Chichester, West Sussex, and United Kingdom: Wiley. Raab, G. (2008).Customer relationship management. Aldershot, Hampshire, England:Gower. Singh, S. (2013).Hospitality management. New Delhi: Random Publications.