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Power Bot

Power Bot. Group 2 Luke Cremerius Jerald Slatko Marcel Michael Tarik Ait El Fkih. Sponsored By : Aeronix Inc. . Project Description . Autonomous Robot with onboard auxiliary battery Used to provide supplemental power to mobile devices (laptops, mobile phones… etc )

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Power Bot

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  1. Power Bot Group 2 Luke Cremerius Jerald Slatko Marcel Michael TarikAit El Fkih Sponsored By: Aeronix Inc.

  2. Project Description • Autonomous Robot with onboard auxiliary battery • Used to provide supplemental power to mobile devices (laptops, mobile phones…etc) • Uses onboard navigation algorithms to navigate to users location • Has iOS application to provide robot statistics and is used to control PowerBot’s movements.

  3. Project Motivation • Battery life longevity in mobile devices is a constant issue. • Wanted to create a charging solution that could charge the device without inconveniencing the user. • The device would be simple to use, allowing for easy adoption into a users everyday routine.

  4. Objectives • PowerBot will be able to navigate autonomously to a users location. • PowerBot can be remotely controlled by user input, through the use of an onboard camera and the provided iOS application. • PowerBot will contain a battery used to charge external devices through the use of USB, DC, and inductive charging.

  5. Specs • Will be at most 36” long • Max speed of 5 mph • Battery life of minimum 24 hours • Able to charge mobile phone from 0% - 100% without needing to recharge internal batteries • Will re-charge internal batteries through in-home AC and/or via onboard solar panel. • Will navigate to the user autonomously • Can be operated via manual control

  6. Software Overview • Embedded software for navigationand power control • iOS application for controlling PowerBot • Wi-Fi module embedded software for communication with iOS app

  7. SoftwareLayout iOS Application MCU Embedded Software Embedded Navigation Algorithm Motor Control Power Management Servo Motors Sonar Sensors Solar Panel Charging Ports

  8. iOSApp • Written in Objective-C using Xcode 4.4 • Offers multiple options for PowerBot: • Settings • Navigation • Manual • Statistics

  9. iOS Views • Each view contains a separate viewController, allowing each tab to contain a unique layout of buttons and fields to be presented to the user.

  10. iOSNetworking Methods • Void socketConnect() • Creates input and output streams via theNSStream subclasses: NSInputStream and NSOutputStream • intsendMessage(NSOutputStream *out , char *buffer) • Sends data stored within the output buffer out via the output socket • intreceiveMessage(NSInputStream *in, char*bufferIn) • Receives data via the input socket and stores it in the input buffer • intparseData(char *bufferIn, int length) • Parses the input buffer and passes data to the appropriate method

  11. Wi-Fi Communication • Used as the primary mode of communication between PowerBot and the iOS Application. • 802.11 used as physical layer communication, with sockets used for higher level communication • RN-131 TCP/IP stack facilitates simpler TCP and UDP data transfer between PowerBot and its iOS App. Embedded Software iOS Software Application Layer Application Layer MCU - Serial iOS- Serial 802.11 - Socket 802.11 Socket

  12. Wi-Fi Module - RN-131 • The Microchip RN-131 provides a complete Wi-Fi solution for onboard communication with PowerBot • The integrated TCP/IP stack within the RN-131 allows for easier implementation of sockets and passing data via TCP/UDP

  13. RN-131 – Power Consumption • Provides low power • communication solution • 4uA Power Consumption when idle • 40 mA while active and connected • 140 mA Power while active and transmitting

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