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Introduction
Problem Statement
Arena
Robot Specifications
Scoring
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"Water Water Everywhere, not a drop to drink... blurp ...."
- The Lost Droid

One of the exciting new area of Robot Application is in Rescue missions.A significant amount of work has been done on this, and research is going on. The benefits of rescue robots to these operations include reduced personnel requirements, reduced fatigue, and access to otherwise unreachable areas.An interesting situation arises when the Rescue Missions go waterborne..

Problem Statement

The task of the event is to design and build a manually controlled waterborne vehicle capable of traversing at different water levels and subsequently retrieving balls held at different depths. Finally the bot will have to collect as many balls as possible and bring in a victory zone on the surface of the water.

Preliminary Round:

The robot has to start from a starting area on the surface of the water in the arena and free the balls held at different depths, collect them and deposit them in another victory region.

Robot Specifications:

The robot should be a manually controlled underwater vehicle capable of moving at different water levels and should have a mechanism to retrieve objects from different depths.
Before the start of the run, the robot should fit inside a box of dimensions 35*25*25 cm on the inside completely.
The dimensions can however exceed after the event commences.
The robot can either be powered by external batteries (which the participant must provide) or by a 220V external power supply (provided by the ROBOTIX team). The 220 V power supply must be stepped down using an adapter, a maximum of 30V can be used to power a robot. No 220V AC powered bot will be allowed inside water for safety reasons.
Use of Lego kits and readymade bases is strictly prohibited and will lead to immediate disqualification of the team.
In case of radio controlled robots, the .:ROBOTIX:. Team will not be responsible for any interference. Participants have to tune in to the suitable frequency on their own.
Wires (if any) connecting the robot to the control system should remain slack throughout the run. Any violation, even unintentional, will lead to disqualification.The wire connecting the bot to the dc power supply should be atleast 5m long.
Readymade gear boxes may be used.

NOTE: All measurements are with an error margin of 2%.

Scoring and Penalties:

The maximum time limit for the completion of the event is 4 minutes. This limit is subject to change during the event.
If a team wants a restart, it can do so but each restart will lead to a penalty of 50 points.
A team can have a maximum of 2 restarts.
The event shall stand complete only when all the balls have been collected in the marked victory zone or the team wants to stop the timer and end the task.
For every contact with the iceberg a team will be penalised 25 points. However if two contacts take place within 15 seconds, there will be only one penalty. Also any intentional usage of the iceberg to crossover will not be allowed.
The blue, green and red balls will fetch 50, 75 and 100 points respectively.
These rules are for the preliminary rounds and may vary slightly for the subsequent rounds.
The decision of the .:ROBOTIX:. Team will be final and binding.

Scoring Rule

Final Score = (100*No. of red balls in the victory zone) + (75*No. of green balls in the victory zone) + (50*No. of blue balls in the victory zone) – (time in seconds) – (50*No. of restarts) – 25*(no of touches with iceberg)

The following are pictures of the actual hoops to be used in the arena.

Water Tank:

The arena will be a water tank of unknown dimensions.
The water tank may be an opaque concrete reservoir or a transparent tank.
The maximum water level in the arena may however vary for different rounds.
The figures are samples given for better comprehension of the positioning of the balls. The arena may be a tank (opaque/transparent) with the same placement of the balls.

Starting Zone:

The starting zone will be a rectangular region the dimensions of which will be specified at the run.

Victory Zone:

The victory zone will be a rectangular region the dimensions of which will be specified at the run.

Ball Specifications:

The ball will be made of a material which has a natural tendency to move up to the surface of the water.
The number of balls may vary depending on the round.
The diameter of the ball is 40mm.

Loop Specifications:

The balls will be held using a horizontal loop.
The loop will be erected with the help of a rod extending from the base of the tank.
The loop holding the balls can be at different depths from the surface.
The loops at different depths are divided into 3 regions depending on its depth-
1. Top Region (0-20cm)
2. Middle Region (20-40cm)
3. Bottom Region (40-65cm)
The loops belonging to different regions shall be painted in different colours.
The loops and their respective balls in the top, middle and bottom region will be blue, green and red in colour respectively.
The exact dimensions of the loop and the rod will be released later.