WV FAIR Intelligent Transportation Using LEGO Robotics
LEGO Cities and Transportation


---

WV  Fair 2003 Information for people manning the LEGO exhibits.

There are 3 robotic vehicles.

• 1. Drive safely in the City

The car has a LEGO camera on board.  It is connected to a transformer so does not need to have the batteries recharged each night.  The Infrared Tower (IR) has a battery eliminator so does not need to have the 9 volt battery charged each night.
 

• 2. Drive safely in the City along the street at NIGHT. Two possible bots.

The car has a Black and White camera and RCX on board.  It is connected to a transformer so does not need to have the batteries recharged each night. The Infrared Tower (IR) has a battery eliminator so does not need to have the 9 volt battery charged each night.
 

• 3. Pick up and deliver the cargo.

The car has an  RCX on board.  The RCX  needs to have the 6 AA batteries recharged each night.  The Infrared Tower (IR) has a battery eliminator so does not need to have the 9 volt battery charged each night.The camera is fixed and is not on the vehicle.

---

You have only 60 seconds to swap out the 6 AA batteries in number 3's RCX.
If the RCX is without battery power for long it loses its operating system (firmware)..
To fix an RCX without firmware:

• Open RoboLab ( with Red Rover closed)
• Have RCX on and in front of IR
• Click once on ADMINISTRATOR
• Click on DOWNLOAD FIRMWARE ( takes about 4 minutes)
• Load programs 1,2,4,5 from the PROGRAMS for RCX folder to the correct prgm slot ( use gray button on RCX to change).  Click the white RUN arrow to load a program that is open.
• Close RoboLab and open RED ROVER

---

There are 3 robotic vehicles at the fair that can be operated,  using Red Rover, to go  forward, right, back and left by clicking on the arrows on the screen with the mouse.
The fourth machine ( black box) can do the same with the LEGO CITY at RTI over the Internet. (Keep times to 1 Second.)

• 1. Drive safely in the City (LEGO camera). Have camera view to tent door so as to have people see themselves as they come in.

Program 1 does a little dance,  Program 2 Zig Zags, Program 3 is used by Red Rover, program 4 turns right, and program 5 turns left.
 

• 2. Drive safely in the City along the street at NIGHT. (Black and white camera). Show students to keep the IR with little green light facing the front eye on RCX. Keep the cords taped to the underside of the table short enough to keep bot on pallet.

Program 1 does a little dance,  Program 2 Zig Zags, Program 3 is used by Red Rover, program 4 and program 5 follows the line and backs up if it bumps into something. (One follows on the right and the other on the left.)
 

• 3. Pick up and deliver the cargo.( Fixed camera like one at the LEGO CITY). Note: Back of bot communicates with IR tower.

Program 1 Closes hand and lifts up,  Program 2 lowers and opens the hand, Program 3 is used by Red Rover, program 4 and program 5 follows the line and backs up if it bumps into something. (One follows on the right and the other on the left.)
 

• 4 Internet machine (black box)
• Red Rover
• Program 1 runs the Monorail back and forth ( and makes noise so that if any one is at the CITY they can know some one is on and perhaps SEND a message)
•  Program 2 lowers and closes the gate.
• Program 3 is used by Red Rover
• Program 4 and program 5 follows the line and backs up if it bumps into something.         (One follows on the right and the other on the left.)
• SENSORSCITY
• In the morning connect on the Internet to http://SENSORSCITY.marshall.edu
• Enter site
• Log on as Fair and use password Fair
• Click on View Live Video to get camera view. Size the window and place it on Desktop so both Red Rover Camera and this Axis camera can both be seen.
• Check to see that a session time is set up.
• ** For each person that comes have them send a MISSION to the CITY
• Click  4. SUBMIT MISSION
• Enter their name in Mission Name box
• Browse to desktop to get AUGUST.vi for program box
• Pick a time slot
• Click Submit Query
• Watch on the camera views ( takes about 15 seconds to start)
• After about 15 seconds after the Ferris Wheel has stopped, reload page or click mission results and see data graph.
• Top white line it the little car going in front of the light sensor.
• The green line is the light sensor reading as the Red, White, and Blue (and Black) of the Flag stand rotates.)
• The red line is the touch sensor count as the monorail come to each station.
• Have student sign and give them a LICENSE - One that is to LEGO if they are young

or one that is to SENSORSCITY if they are old enough to do data logging ( about 10 up).
• Power Point is available (Icon on lower right corner) to use if Internet to CITY down.

LEGO Links of Linda Hamilton hamilton@marshall.edu Webpages and pictures on http://netapps.marshall.edu/lego Web camera on http://legocamera.marshall.edu NASA site of Remote Sensing on http://SENSORSCITY.marshall.edu Teleoperate the LEGO CITY at http://lego.marshall.edu

Please bring back the LEGO Robotics sign that was made and used to direct at the Fair.
 4 computers each with mouse, monitor, keyboard, and connecting wires.
3 robots, 3 cameras
Tote with supplies
4 mouse pads
Large and small blue display board
Large gray wheeled cart