Category of Event: Manual Robotics

Being trapped in a rocky or ice-laden region with crevasses and crags is a true nightmare for any adventurer due to the hazards it poses. Any moment could be their last as they try to cross this hazardous terrain. However, with the right rescue and construction robot such dangers can be averted and the rescue operations can be carried out, controlled by human beings, at a safe distance.

Robotix'13 gives you the chance to build a manually controlled robot capable of traversing over different terrain, with a broken landscape, by constructing a path on it and rescuing victims trapped at the accident site.

ARENA SPECIFICATIONS:

• The arena will be having platforms of height 60cm.
• The dimension of the platform will be 1.8 m x 1.2m.

                                                                                                                                 Fig: Platform

These will be having irregular terrains as discussed below:
 

                                                              Sandy terrain                                                                                                                                Rocky Terrain

                                                               Pebbly Terrain                                                                                                                             Lunar Terrain

The terrain will consist of rocks and pebbles of height not more than 5-6 cms.
 

CREVASSE:

• The Crevasse (here) is the gap between the two terrains.
• The depth of the crevasse will be about 60 cm.
• The span of the crevasse is 30 cm.

JOINT ( BRIDGING PART):

The Joint is a wooden plank provided on the platform prior to the crevasse for bridging the gap.

It is designed in such a way that a suitable grasping mechanism can be used to lift it. Also, the upper surface of the joint has been provided with a hook for corresponding mechanism.

• At the bottom of the joint, there will be a circular ring which will fit into the corresponding support present in the crevasse.

DIMENSIONS OF JOINT: (As shown in the diagrams)
• Width of the tracks on the joint-10 cm
• Distance between the inner edges of joint- 10 cm
• Diameter of the circle in bottom view- 15cm
• Hook: The hook will be semi oval in shape. The maximum length of the major axis will be 10 cm and the maximum height of the hook will be 5 cm. The maximum weight of the joint will be 300 grams.

OBJECTS (VICTIM):

1. The objects will represent the victims.
2. They will be wooden cubes of dimension 5 cms.
3. The victims will approximately weigh around 75 grams, this being the maximum weight.
4. The upper surface of the object will be provided with a hook for the corresponding lifting mechanism.
5. There will be three types of victims in the arena.

• RED Victim: These victims will be present at a depth of 25cm .
• YELLOW Victims: These victims will be present approximately at a depth of 15cm.
• GREEN Victims: These victims will be present in the accident site (last platform in the arena) on the terrain itself.

Fig: VICTIM

ROBOT SPECIFICATIONS:

1. Robot should fit into a box of dimensions 40cm x 40cm x 40cm (l*b*h). No part/mechanism of/on the robot should exceed the given dimensions at the commencement of the run. However the dimensions can change during the course of the run.
2. The maximum allowed weight of the robot is 15 kg.
3. The outer diameter of the wheels should not exceed maximum dimension of 10 cm.
4. The dimensions of the arena are subject to a tolerance of 10 percent.

GENERAL RULES:

1. A maximum number of participants allowed per team: 4 people
2. Only one robot is allowed per team.
3. Maximum two controllers are allowed per team.
4.LEGO kits or pre-made mechanical parts are not allowed. (http://en.wikipedia.org/wiki/Lego_Mindstorms)
5. Wires should remain slack during the course of the run. Pulling the wire to aid the robot in traversing may lead to disqualification.
6. The participants will be provided with 220 Volts, 50Hz standard AC supply. Participants will have to themselves arrange for any other power supply required for their robot.
7. Teams qualifying the first round will go into the second round.
8. Teams cannot tinker with their robots in the arena.
9. The decision of the Team Robotix will be final and binding. 

ROUND 1

THE TASK:
The bot has to traverse over irregular terrains by bridging crevasses and reach the safe zone.

THE ARENA:

• The arena will consist of three platforms (with different terrains) with two crevasses (C1 and C2) in between .
• There will be only one joint in the arena which the bot has to use to bridge both the crevasse. After bridging C1, the bot has to carry the joint to bridge the crevasse C2.

ARENA: ROUND 1 (Top View)

ARENA: ROUND 1 (Side View)

THE RULES:

1. The robot will start its run from the start zone.
2. The maximum time allotted for the run is 3 minutes.
3. A robot can cross the crevasse only by bridging it using the joint provided.
4. Time bonus is awarded at the end of the run, only if the robot reaches the safe zone before the completion of allotted time.
5. Points are awarded for crossing the crevasse. However, the crevasse will be considered to be crossed only when the robot lies completely on the next terrain.
6. If the joint/robot falls off the track, the team faces a penalty and the joint/robot is placed back at the point from where it had fallen.
7. If a robot, while traversing over a joint, gets stuck in middle of crevasse due to the joint being improperly placed, it will be considered as the robot falling off the arena and the team faces a similar penalty.
8. If the robot falls off the arena more than once, the team will be disqualified.
9. If the robot drops a joint more than once, the team faces disqualification.

TIMEOUTS AND RESTARTS:

• A maximum of 1 Timeout of 1 minute and 1 restart can be taken by the team.
• A penalty is imposed for each timeout and restart.

SCORING:

POSITIVE POINTS:

1. For every successful bridging(placing the joint and traversing over it): 150 points
2. Bot in safe zone: 100 points
3. Time bonus: Total time for the round(in seconds)- Time taken(in seconds)

PENALTIES:

1. Timeout- 50 points
2. Restart- 100 points
3. Dropping a joint- 30 points
4. Falling of bot in crevasse or off the terrain.- 50 points

SCORING FORMULA:

150*(number of crevasses crossed)+100*(if bot is in safe zone)+ Time Bonus- penalties imposed
 

ROUND 3

The problem statement will be disclosed at the time of the event. However, no extra mechanisms will be required on the part of the bot.

Build a manually controlled robot capable of traversing over irregular terrains with deep gaps (crevasses) in between, by bridging them and saving victims stranded at the accident site.

Download the PDF file here.

ROUND 2

THE TASK:
The bot has to traverse over irregular terrains by bridging crevasses and save the victims stranded at the accident site by taking them back to the safe zone.

THE ARENA:

• There are four platforms and three crevasses (C1, C2 and C3).
• A joint is provided before each crevasse for bridging it.
• There are victims stranded at the accident site. The accident site comprises of  the last platform and the crevasse C3.

VICTIMS:

• The victims are present in the crevasse C3 and the last platform(P3).
• Four Green victims will be present on the last platform.
• Two yellow victims will be present in the crevasse C3 at a depth of 15 cm.
• Two red victims will be present in the crevasse C3 at a depth of about 25 cm.

Fig: ROUND 2 TOP VIEW

Fig: ROUND 2 SIDE VIEW

THE RULES:

1. The maximum time allotted for this round will be 4 minutes.
2. The victim needs to be taken to the safe zone (start zone) by traversing the path that the bot completed.
3. A victim is said to be safe only when it lies completely in the safe zone. Bonus points are awarded for the same.
4. There are 3 Checkpoints as follows:
a. Checkpoint 1: Crossing Crevasse C3
b. Checkpoint 2: Crossing Crevasse C2
c. Checkpoint 3: Crossing Crevasse C1
5. Bonus points are awarded for each checkpoint crossed by carrying the victims back to the safe zone.
6. The robot can save as many victims as possible simultaneously or save victims one by one. The bot has to drop the initially carrying victims in the safezone in order to return back to the accident site to pick up more victims. However, points will be awarded for the victims on the bot if a bot enters the safe zone just at the end of the run.
7. Points will vary according to the color of victim.
8. If a victim is dropped after being picked up, a penalty is awarded for the same. However, the fallen victim can be picked up again. 
10. The general rules of Round 1 apply in this round too.
11. Time bonus is given for this round only when the bot enters the safe zone before time ends with all victims rescued i.e. in safe zone.

TIMEOUTS AND RESTARTS:

A maximum of two timeouts of one minute and one restart can be taken in this round. A penalty will be imposed accordingly.

SCORING:

BONUS POINTS:

      1. For every successful bridging and traversing- 150 points

      2. Taking the victim across a checkpoint: 25 points for each victim

      3. Victims In safe zone:

• Red victim- 100 points
• Yellow Victim- 75 points
• Green victim- 50 points

      4. Time bonus: Total time for the round(in seconds)- Time taken(in seconds)


PENALTIES:

1. Timeout- 50 points
2. Restart- 100 points
3. Dropping a joint- 30 points
4. Dropping a victim -40 points
5. Falling of bot in crevasse or off the terrain - 50 points

SCORING:

150*(number of crevasses bridged)+ Bonus (for crossing the checkpoints) +100*(No. of red victims in safe zone) + 75*(No. of yellow victims in safe zone) + 50*(No. of green victims in safe zone) + Time Bonus -Penalties Imposed

For any queries or doubts regarding the event Overhaul, visit our forum forum.robotix.in or contact:

Facebook Discussion group for the event Overhaul.

Rahul Koshal
rkoshal@robotix.in
+91 767 959 8655

Puja Gorai
puja@robotix.in
+91 957 278 6006

• Traverse over different terrains.
• Place the bridging part (Joint) between the terrains.
• Rescue the victims from the accident site.

The tutorial for this event is available on the Overhaul tutorial page.

Also check out the recently compiled DIY module for making a complete robot for Overhaul here.

You can discuss your doubts regarding this event at out Overhaul Forum

Facebook Discussion group for the event Overhaul.

Check out the new Overhaul Video tutorial here:

Click here to register for Overhaul.

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