Android-Arduino Communication System

Android-Arduino Communication System ROBOTIC CONTROL WITH ANDROID PC USING X-BEE T.M.Sirish J.R.SURESH BABU Abstract — The paper is concerned with the Android-Arduino communication and Computer communication by integrating mobile wheel robots with X-Bee communication protocol. Arduino controls tasks such as obstacle and collision avoidances following, autonomously movement, and indoor localization of group robots are implemented toward an autonomously control of robot. Mobile robotics is a technology and a research area where we witness tremendable advances for the last decades and it finds application in areas like agriculture, medical services, hazard environments, space explo-ration, military, intelligent transportation, social robotics, and entertainment. XBees provide wireless communication. As a system, the advantages are very obvious compared with other technology. Keywords— X-Bee, Adruino, Android, IR, Ultrasonic I. INTRODUCTION Robots may interact in the same location as users control them from any place in the world using internet and wireless networks for this purpose. Sensor based approach uses various kinds of sensors such as IR sensors and ultrasonic sensors.IR sensors are generally used for measuring the difference in reflectivity of surfaces depending on the properties like color, roughness. Ultrasonic sensors are used to measure the distance to an object. Robots are built to navigate using these out puts according to the application. The idea is to design the Sensor platform with accurate angle control this continuously collects the distance data in an automatic way where the Robot is controlled by Android app and transfer ultrasonic sensor data to PC. An idea is to build an actual robot that is subject to wireless operation from a PC or a Android. It reads sensor and robot data from file and to Generate map of surrounding environment. Robots are capable of interacting with the objects. The design i n this paper comprises of the chassis will also house the PCB and proximity sensors that will continually provide feedback to the user. Proximity sensors are able to assist the operator in navigating across inhibiting terrain even if communication link with the operator is broken. Robot automatically stops if it detects an obstacle. Due to the Android and Arduino combination, the robot can interact with the person and provide an easy development platform for future improvement. The paper[1],[2] deals with the route navigation and the Application of Zigbee and [3],[4],[5] and [6] emphasis task scheduling on low cost arduino and distance measuring sensors. II. PRINCIPLE OF WORKING Wireless sensor network system will not only reduce the system cost in term of facilities setup and labor cost. It also provides flexibility in system in term of distance or location. The fundamental design and implementation of ultrasonic sensor based robot on Android/PC featuring a XBee based technology[1] The developed platform is cost-effective and as well as the effect on reducing energy consumption. The platform consists the components Android phone, Arduino mega adk, Motor Driver shield, ultrasonic sensor[5], IR sensor and Xbee module. It features the Atmega16U2 programmed as a USB-to-serial converter. The Arduino programming is very simple; uses its own language based on the popular C high level programming language and supports all standard C and some C++ functions. The operating voltage of the board is 6 to 20 volts. The recommended range is 7 to 12 volts. This is designed to control a robot with an aid of Android application[6]. Xbee is interfaced to the control the robot using android application. Where one end of xbee is interfaced with android application which is used to transmit the commands and receiver end robot is attached which is used to control in all directions. Figure 1: Arduino Mega adk Operating voltage 9-12 volts IR Range 6cm Ultrasonic Range 3 cm Degree of rotation 180 degree Communication frequency 2.4 Ghz Table 1 Specifications III. HARDWARE ARCHITECTURE X-bee The X-bee modules allow serial links of TTL signals on distances of 30m indoors, 100m outdoors with line of sight which would be enough to control the electronic wheelchair. IEEE 802.15.4 standard for Zigbee operates in the band: ISM (Industrial Scientific and Medical), 868 MHz in Europe, 915 MHz in the U.S. and Australia, and 2.4 GHz in most jurisdictions around the world[2]. This technology is simpler, cheaper and has lower power consumption than other WPANs such as Bluetooth. The problem is to the need to detect the obstacle in the path of the robot, to sense and find alternative paths of the robot. Figure 2. XBee The Ping which works by sending out a burst of ultrasound to detect the closest object and listens to the echo after hitting the object. The short pulse from the Arduino board is send to trigger the detection, and then listens for a pulse on the same pin using the pulse. The second pulse duration is e the time taken by the ultrasound to travel to the object which is equal to the time taken to travel back to the sensor[4]. This time can be converted to distance by the velocity of light. We use IR transceiver and comparator IC LM324 for detecting the obstacle. The component deals with two major issues. They are as follows: 1. It avoids the collisions with walls and other obstacles. 2. It avoids the prototype be fallen down from the steps on its way. Figure 3. Ultrasonic Range Finder B Android Android is a Linux based Open Source operating system developed by Google to power smart phones. In order to provide productive application development, applications can be developed using Java and easily tested and deployed to devices with Android. Development can be done with a simulator or with real devices. Using Android Application Programming Interface (API) features a rich ground of options for robot developers. Programming by commands commonly feature for robots, works seamlessly on Android. Using Android’s API, a programmer can make his robot to act. Android’s API also offers easy access to camera and orientation sensors. Some devices have only accelerometer, while other have accelerometer and compass, and others gyroscopes. The same orientation function calls can be used to query these sensors, independently of the device. One limitation that most mobile phones don’t have a USB Host port, so no USB accessories such as mice can be connected to them. To b ypass this limitation, Open Accessory API allows accessories to be the USB Host. This allows external custom hardware to interact with Android programs. Navigation of a mobile robot in an unknown environment is possible by sensors which obtain the information of surrounding environment. For effective communication between mobile robots we need to use some sensors. Therefore mobile phone sensors can be categorised such as the Sensors used for collecting information about environment, for communication between mobile robots, for collecting information and also for communication[5]. IV. DESIGN The Android application makes it effective to Control a robotic vehicle which is interfaced to the control unit on the robot for sensing the signals transmitted by the Android application. With an aid of the smart-phone/PC with Android OS, upon a GUI based touch screen operation the Remote operation is achieved[6]. At the Transmitting end, it uses an Android application device remote through which commands are transmitted and at the receiver end, the directions such as forward, backward and left or right are controlled by the commands from the Android by the user end which are used for controlling the robot. The movement is achieved by motor shield that is interfaced to the Arduino. Serial communication data sent from the android application is received by a Zigbee receiver interfaced to the Arduino. Figure 4. Block diagram of communication The shield for Arduino has the DC Motor interface. The interface is built around the L293DC Motor driver IC. It has a obstacle sensor to detect within 6cm range. If IR is used, we can be able to detect the obstacle. The interfaces have to be selected with the jumper. The obstacle sensor is an IR sensor which is used for detecting the obstacles and acts in impulsion to safeguard. In ultrasonic sensor, we use ping function which detects the distance of the closest object in front of the sensor and sends the data to the mobile. To run the DC motor, enable line be high, set I1 line to High and I2 line to Low which rotates in one direction and set I1 line to, low and I2 line to High which rotates in another direction[1]. V. FUTURE WORK Extensions of our current work include an extension to camera implementation which will be useful for deploying sensor networks in large areas. VI. CONCLUSION The system is highly flexible and scalable and can be expanded to other applications. On the software side, our Android application ensures that the system enables energy saving, and can suggest task scheduling with both instantaneous power and cost considerations. Our future work includes the implementation of additional applications, the refinement of our implementation, especially with regard to communication and possibly porting our network stack to other platforms. Acknowledgment I am very grateful to my guide Mr.J.Sureshbabu, Scientist-B, National Institute of Electronics Information Technology(NIELIT),Chennai who provided us with effective information regarding the functioning of System.I also extend our sincere thanks to all those people who have helped us successfully design and implement this system. REFERENCES [1] Route Navigation System in ZigBee-Based Sensor Networks Li Wenze ; Sch. of Inf. Telecommunication., Beijing Univ. of Posts Telecommunication, BeijinChina ; Han Yufen ; KangGuixia;SunJing Wireless Communications, Networking and Mobile Computing, 2009. WiCom 09. 5th International Conference bejing on 24-26 Sept. 2009 . [2] Applicability of ZigBee for Real-Time Networked Motor Control Systems Ulugbek R. Umirov1, Seong-Hyun Jeong and Jung-Il Park Department of Electronic Engineering, Yeungnam University, Gyeongsan, Korea Control, Automation and Systems, 2008. ICCAS 2008. International Conference seou on14-17 Oct. 2008, 2937 – 2940. [3] Low cost Arduino/Android-based Energy-Efficient Home Automation System with Smart Task Scheduling Kim Baraka, Marc Ghobril, Sami Malek, Rouwaida Kanj, Ayman Kayssi Department of Electrical and Computer Engineering American University of Beirut Computational Intelligence, Communication Systems and Networks (CICSyN), 2013 Fifth International Conference on 5-7 June 2013 Madrid, 296 301 [4] New approach of ultrasonic distance measurement technique in robot applications G.Hueber, T.Ostermann, T.Bauernfeind, R. Raschhofer, R.Hagelauer Dept. of Microelectronics. Research Institute of Integrated Circuits, A-4040 Linz, Austria. [5] Remote Controlling for Ring-type Traveling Ultrasonic Motor Based on Zigbee Juping Gu, Laiwu Luo,Xiao Wu, Hui Yang ,Liang Hua ,Shenbei Qin Yuyun Liu Department of Electrical Engineering, Nantong University Department of Electrical Engineering, Southeast University., China. Electrical Machines and Systems (ICEMS), 2013 International Conference on 26-29 Oct. 2013 Busa, 748 – 751. [6] Controlling Physical Objects via the Internet using the Arduino Platform over 802.15.4 Networks V. Georgitzikis, O. Akribopoulos and I. Chatzigiannakis. Latin America Transactions, IEEE (Revista IEEE America Latina)(Volume:10 ,Issue: 3), April 2012 ,1686 – 1689.

The Colonization of the Philippines Essays -- Politics, External and I

Generally, textbooks, articles, and essays talk about America’s â€Å"occupation,† â€Å"supervision† or â€Å"intervention† in the Philippines. They seem to be afraid to use the word â€Å"colonization.† According to Webster’s Dictionary the definition of colonization is, â€Å"The colonial system of political government or extension of territory, by which one nation exerts political control over another nation, territory, or people, maintaining the colony in a state of dependence, its inhabitants not having the same full rights as those of the colonial power. The controlling power is typically extended thus by military force or the threat of force† (6). In his book analyzing Japanese Assimilation Policies in Colonial Korea, Mark Caprio makes a distinction between two different â€Å"levels† of colonialism: external and internal. He states that external colonization is what Hannah Arendt calls â€Å"overseas imperialism†¦where their indirect policy exerted minimal effort to forge political, social, or cultural bonds with the peoples under their jurisdiction† (2). Although this is the way the French colonized, the United States seem to adopt the British way of colonizing, which is Caprio’s second level of colonization or internal colonization. This is what Benedict Anderson describes as â€Å"inventing nations† (Caprio 2). It requires that the colonial power send ambassadors to impress its culture upon the colony through controlling things such as dialect, media, education, and military (Caprio 2). Caprio also mentions, â€Å"The decision to colonize, as well as the administration to administer the colonized, was based primarily on the needs and interests of the colonizer’s subject; those of the colonized object received minimal consideration† (2). Therefore, a colony serves... ...ates failed to see the Philippines as a free nation and did not provide equal rights to Filipinos, treating it as a colony. Therefore, the United States colonized the Philippines. It took the Philippines, by military force, through a three-year war. It did this, not for altruistic reasons, but for self-interest in trade and nationalism. It â€Å"exerted political control† over the Philippines by ignoring the Philippine republic and its representative at the Treaty of Paris, sending its own people to govern the Philippines, and monitoring the creation of the Philippines’ future government. Finally, the United States failed to provide equal rights to Filipinos by ignoring the Filipino government and representative at the signing of the Treaty of Paris, holding racial prejudices in dealing with Filipinos, and excluding the Filipinos from the right to the Monroe Doctrine.

Multiple Sclerosis and Living Life

|Multiple Sclerosis and Living Life. | |[Type the document subtitle] | | | |Multiple sclerosis can be debilitating, however there are things that can be done to | |limit the amount of attacks a person may have. | | |Le’Sha Hairston | |10/10/2012 | | | Multiple Sclerosis and Living Life Le’Sha Hairston University Composition and Communication ll COM/156 Trista McCombs Multiple sclerosis and Living Life As a person with the disease! Knowing the effects first hand, Multiple Sclerosis is an autoimmune disease.With MS, the body's white blood cells attack tissues called myelin. Changes to your diet and life style can help slow down the effects of multiple sclerosis. Some days will be better than others, but a normal life can be lived with the disease. June 24, 2004 eight years ago I was diagnosed with â€Å"Multiple Sclerosis†. A quote from talk show host, author, actor, and philanthropist â€Å"Montel Williams†, when the neurologist said those words- †Å"you have (MS)† it hit me like a ton of bricks. â€Å"I thought I was diagnosed with a death sentence†. As a person with the disease! Knowing the effects first hand, Multiple Sclerosis is an autoimmune disease.With MS, the body's white blood cells attack tissues called myelin. Changes to your diet and life style can help slow down the effects of multiple sclerosis. Some days will be better than others, but a normal life can be lived with the disease Multiple sclerosis (MS) is an autoimmune disease that can be potentially debilitating to a person. Multiple sclerosis is a disease in which one’s immune system begins to attack the body. The white blood cells will attack a tissue in the body called the ‘Myelin’, which is the protective sheath covering of all nerve’s in the human body.By the Myelin being eating away this can and most likely will result in permanent damage to the nerve’s even deterioration, being that there is no reversible p rocess for (MS). There are many different symptoms for a person with Multiple sclerosis; it all depends on the damage and what particular nerves are affected. There is no cure for (MS), and the only way to determine is one has Multiple Sclerosis, is to rule out other diseases. Meaning using the process of elimination to determines one’s status. A person with a severe case of the disease will encounter many problems.Some of these problems are not having the ability to walk, talk, or any mobility at all. Even though there is no cure for the disease, there are strategies to treat an attack such as â€Å"anti-inflammatory medications†. Some of these medications are â€Å"Corticosteroids and Beta interferons†. Corticosteroids consist of different medications that decrease inflammation and help to reduce the symptoms and signs of inflammation. They also â€Å"suppress your immune system, which helps control the conditions in which your body’s immune system mis takenly attacks its own tissues† (http://www. mayoclinic. om/health/steroids/HQ01431), in thus case Multiple Sclerosis. Corticosteroids can be taken in many different ways such as: One can take corticosteroids by: †¢ By mouth. Tablets, capsules or syrups help treat the inflammation and pain associated with certain chronic conditions, such as arthritis and lupus. †¢ By inhaler and intranasal spray. These forms help control inflammation associated with asthma and nasal allergies. †¢ Topically. Creams, ointments and roll-ons can help heal many skin conditions. †¢ By injection. This form is used to treat such signs and symptoms as the pain and inflammation of tendinitis.While the six FDA-approved disease-modifying medications that treat multiple sclerosis are often successful in slowing the progression of (MS), like all drugs, they can also produce some side effects. The side effects of (MS) medications can range from mild (flulike symptoms or irritation at an injection site) to more serious (chest pain, an increased risk of heart toxicity, or even acute myelogenous leukemia, a kind of bone marrow cancer. So when taken any medication it should be consulted with your doctor on the best medication for any person to take while dealing with multiple sclerosis.Discussing all side effects will help the doctor know how tolerable you are to the medication. Any bruising, redness, swelling, itching, etc should be reported immediately. All the interferon’s such as Rebif, Avonex, and Betaferon can cause flulike response after an injection. This is managed by gradually starting with smaller does, then working up to full dose. Physical therapy is also another way to treat (MS) attacks, and modify the course of the disease as well as using muscle relaxants. Physical therapies that can be conducted are too help deal with the issues brought on by Multiple Sclerosis such as: Fatigue †¢ Pain †¢ Balance problems †¢ Coordination problems †¢ Weakness †¢ Immobility Physical therapy will help teach new movement techniques also. A healthy diet is something that should also be maintained when someone has Multiple Sclerosis. A person with a chronic illness should consume adequate calories including protein. This will help the body provide energy, heal any wounds and fight off any infections. A person with Multiple Sclerosis should maintain their weight, eat foods low in fat and cholesterol, and limit their sugar intake.Salt is something that should be moderate in a (MS) patient’s diet, along with drinking 8-8ounce glasses of water per day to maintain a good urinary track. Anyone with an illness should get plenty of rest, thus keeping the energy up. Anyone with Multiple Sclerosis can have a very fulfilling life. (MS) doesn’t have to determine the amount of fun you have. Yes it can become hard with all the medications and daily stipulations but it’s worth it to maintain life. I know someone w ho has had the disease since the age 19 years old. They woke up and couldn’t see anything, just flashing lights and a splitting headache.Rushed to the hospital and they couldn’t begin to explain the amount of testing that was done on them to gain a diagnosis. They had to make numerous changes in their life if they wanted t continue to be normal. These changes included not smoking (cigarettes), no alcohol, fatty foods, getting more rest, working less, being on many medications etc: an the list goes on. However, for the sake of their children and their family they were able to pull through. As they explained to me there are days that are great from them than there are days that is extremely hard. But it’s better than not being around at all as they said.There are days when their depression will set in and giving up is the only thing they want to do, doing so would be the easy way out. Fighting it to the end is the decision they made; having a wonderful support sys tem that keeping them motivated to live. Great children and a wonderful husband couldn’t ask for anything more. There’s nothing they can’t do everything is regular with some limitations. Multiple sclerosis is a potentially debilitating disease. However as long as you take your medications, exercise, and maintain a well balanced diet you can live a happy and normal life. It will also limit the amount of attacks a person will have.It doesn’t have to over take your life. Staying positive and having a great support system are strategies to help a person keep the faith and make it through. As a person with the disease! Knowing the effects first hand, Multiple Sclerosis is an autoimmune disease. With MS, the body's white blood cells attack tissues called myelin. Changes to your diet and life style can help slow down the effects of multiple sclerosis. Some days will be better than others, but a normal life can be lived with the disease. References: www. cnn. com www. mslifelines. com www. montelwilliams. com www. apolllolibrary. com www. everydayhealth. com

The First Human Clone Real Stories - 930 Words

The documentary titled â€Å"The First Human Clone - Real Stories† highlights the controversial issue of human cloning. The documentary has shown the development of a ten-cell human embryo along with explaining the science behind this extraordinary procedure. Human cloning has raised complex ethical challenges for the people involved, the healthcare staff and the society on the whole. New definitions of parents and children are created by infertility treatments and a rethinking of traditional concepts of family is required. Human reproductive cloning should be banned because of the death of countless human embryos while conducting experiments, known risk to the mother and the risk of birth defects in cloned human beings. The documentary shows the successful cloning of a human embryo designed by the Italian fertility expert Severino Antinori to be placed in the womb of a woman for producing a baby. This was an extraordinary scientific breakthrough. However, the rate of success is 30 percent in women under the age of 35. Fertilization occurs by shooting a sperm right into the egg. Cloning can benefit those who cannot have a baby. The documentary talks about the misuse of the underdeveloped nations because it is a risky procedure which is illegal in the United States. Reproductive cloning has many advantages. Firstly it helps women with fertility issues have a genetically related baby. Another benefit of reproductive cloning is that lesbians can also have babies without usingShow MoreRelated The novel Never Let Me Go by Kazuo Ishiguro740 Words   |  3 Pagesthe story and twists the ideas of typical book genres. The novel Never Let Me Go, a story by acclaimed author Kazuo Ishiguro is about a young lady and her friends, figuring out who they are from adolescence to adulthood. 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