Abstract Other Resources Financial Resources Project Schedule Personnel Efforts Item DescriptionCost STK300 Microcontrollerdonated (Kanda) GM28 Cellular Moduledonated (Ericsson) Misc. Components $ Final Project Enclosure $ 3.00 Project Poster $ 0.00 Total Estimated Materials $ This project will enable users to remotely control their home appliances and systems using a cell phone-based interface. To access the system, the user will send an authentication code along with a desired command to the control unit using the short message service (SMS). Upon authentication, the control unit will perform the desired command and return a status message back to the user. Design Objectives Set up communication between cell phone and receiving device Set up communication between receiving device and microcontroller Implement control circuit interface from microcontroller to electrical appliances Functional Requirements Controlled appliances must be electrical. Functionalities of the controlled device Battery and power converter ratings Capabilities of the microcontroller Design Constraints Communication between cell phone and receiver Hardware aspect of the receiver is inter- connected Implement control circuit from microcontroller to appliances Measurable Milestones Receiver will connect to the cellular network. Receiver should authenticate user through cell phone number and/or password Receiver will parse and interpret (ASCII) text Microcontroller in receiver will control the electrical appliances through I/O interface Microcontroller should return status message Materials$ Labor ($10.30/hr)$ 6, Total Cost$ The extensive capabilities of this system are what make it so interesting. From the convenience of a simple cell phone, a user is able to control and monitor virtually any electrical device in a household. This makes it possible for users to rest assured that their belongings are secure, that the garage door is shut, and that the television was not left running when they left the house. Cell Phone-Based Remote Home Control System Introduction The cellular phone will operate indoors or outdoors, wherever a cellular signal exists The control unit will operate indoors within the temperature and humidity limitations required for the proper operation of the hardware Operating Environment Users Consumers who want to monitor and/or control household appliances from a remote location Intended Users and Uses Assumptions and Limitations The end-product is a control unit that integrates the following components: Cellular receiver Microcontroller Controlled devices Expected End-Product The objective of this project is to develop a system that allows the remote control of multiple home appliances from a cell phone-based interface. This system will be a powerful and flexible tool that will offer control and monitoring of appliances at any time and from anywhere within the constraints of the technology in use. The target appliances include climate control systems, and lights although many other appliances can also be controlled. Problem Statement Limitations The receiver must reside in a location where a signal with sufficient strength can be received from a cellular network Only electrically controllable appliances will be possible targets for control Assumptions Cellular phone and service provider support text messaging service (SMS) All service charges from service provider apply User and control unit can communicate over a cellular phone network Proposed Approach Cellular Networks: The widely available networks are based on GSM. Communication protocols: DTMF, GPRS and SMS. I/O interfaces between microcontroller and devices: Serial or parallel I/O Research technologies Purchase or build components Implement components into system Test and evaluate system Integrity of message string Hardware/software interface System response time Power supply testing Testing Considerations Technologies Considered Team Member : Client ISU Department of Electrical and Computer Engineering Faculty Advisor Professor Ahmed E. Kamal Project May06-13 Website Adam Mohling (CprE) Chau Nguyen (EE) Issa Drame (EE) Arturo Palau (EE) Total Hours Project Reporting End-Product Demonstration End-Product Documentation End- Product Testing End-Product Implementation End- Product Design Technology Consideration and Selection Problem Definition Total: Other Resources Arturo Palau Issa Drame Chau Nguyen Adam Mohling $6,530 $82 $762 $1,895 $,1833 $1,957 Labor Cost (10.30/hr) Current detection circuit User authentication Correct status messages Proper control device operations Uses Remotely controlling household appliances such as: AC, lights, fans, thermostats, etc. Cell Phone GM28 Cellular Module STK300 Microcontroller Appliances Send message Send status Issue command Send completion status Decode incoming message Send instruction to appliance Monitor completion status Communicate with network Transfer data to microcontroller Send text message Receive status message Send message Send status Thermostat Garage Door Fan Lamp Perform required instructions Project Requirements Resources & Schedules Solution Development Closing Summary