Sending and Receiving Data between Mobile and Data Logger

作     者：Abbaraju, Nanda 

作者单位：Jönköping University 

学位级别：master

导师姓名：Joakim Staberg

授予年度：2008年

主      题：Data Logger Bluetooth MIDlet J2ME RFCOMM Engineering and Technology Electrical Engineering Electronic Engineering Information Engineering Other Electrical Engineering Electronic Engineering Information Engineering Teknik och teknologier Elektroteknik och elektronik Annan elektroteknik och elektronik TECHNOLOGY Electrical engineering electronics and photonics Electrical engineering TEKNIKVETENSKAP Elektroteknik elektronik och fotonik Elektroteknik teknik Technology JTH Computer and Electrical Engineering JTH Data- och elektroteknik 

摘      要：The developed mobile application can send and receive data from Data Logger and can display on the mobile screen. Now it can send the received data to web server using GPRS. Better command options are created for user. Now the user can start discovering devices and can stop discovery in middle by using stop command. If the user wants to send the data to web server he can use send command and he can see the received data on mobile screen. Now the developed application can discover devices with similar discover time compared to Nokia mobile within built-in Bluetooth enable in it. Bluetooth solution is better when compared to wires in terms of cost, power. When using wires cost of R232 converter, cost of twisted wires, cost of labor for installing sensors, cost of power, cost of switches etc comes into consideration. For measuring temperature values we need one pc. But we can get the temperature values and graph in mobile itself. When using Bluetooth we don t need to lay wires, Just mobile is enough which has Bluetooth enabled in it to receive data and sensors cost comes into consideration. We can get the temperature readings when power is not able at measuring time. Benefits are more when using wireless over wired. For future work Mobile application should be developed to program Data Logger using Bluetooth and another Mobile application should be developed to display graph for received temperature values. Communication time to send and receive data should be decreased. Better screen should be developed. Pictures should be displayed for discovered devices to distinguish between mobile and pc devices. PIM Phone calendar should be developed for programming new mission so that user can select date and time to start data logger for measuring temperature and he should have facility to save some entries. Any case of possibilities of errors should be handled.