1 / 18

Smart Barge

Smart Barge. ECE 445 Senior Design 2011 Team 27 Nic Brauer , Julio Ortiz. Overview.

arlais
Download Presentation

Smart Barge

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Smart Barge ECE 445 Senior Design 2011 Team 27 NicBrauer, Julio Ortiz

  2. Overview • Smart Barge is a safety system that is designed as an “add on” system for existing barges. It senses obstacles in front of the barge and warns the operator of the upcoming threat. If the operator does not see the obstacle or cannot avoid it themselves, the Smart Barge system will turn the barge using a bow thruster placed under the front of the barge. http://i01.i.aliimg.com/photo/v0/11162927/Tug_Boat_And_Barge_300ft_2002_2005.jpg

  3. Components • Smart Barge consists of four different modules connected by wireless: • Sensor/Servo (2)- The two sensor/servo modules are placed at the front corner of the barge and sense obstacles by panning back and forth. • Motor- The motor module controls the thruster motor through h-bridge circuitry and the microcontroller’s analysis of the sensor’s data. • LED Display- This display of lights shows the operator where the upcoming obstacles are located and allows for operator overdrive of the safety system.

  4. Features • Sensing Distance can detect from 20cm to ~25 feet • Sensor-to-motor Reaction Time desired to bewithin 1 second • Forward and side-of-barge detection by system • Lateral movement of barge when obstacle is detected • Tugboat operator notified about whereabouts of obstacles • Operator will be able to override/abort Smart Barge system

  5. Components Sensor/Servo System H-Bridge/Motor System Motor control logic

  6. Components

  7. Functional Flow Chart

  8. Sensor Algorithm

  9. Sensor Analog Output ~28cm Detection ~40cm Detection 1cm = 4.8mv

  10. Sensor Output continue Extreme Close up and Sensor Interference

  11. Sensor Testing

  12. Servo Positioning Every 50us gives a 5 degree change in servo position We implement 20 steps of 5 degrees each to get full coverage

  13. H-Bridge System

  14. H-Bridge System LT1158 Datasheet – Linear Technology

  15. Motor Control Flowchart

  16. Successes! • Sensing System with Analog to Digital conversion on the PIC16F887 • Servo System Pulse Width Program • Motor Control Logic • Operator Panel Design

  17. Challenges • xBeeintegration as the communication system between modules • H-bridge driver implementation

  18. Recommendations • Use Arduino (with built-in Wireless) instead of PIC • Possibly try using a different method of motor control

More Related