Ornithopter (Robotic Bird)

For ages men and women have studied birds, bats, and beetles, observing and experimenting, attempting to determine what humans must do to fly by flapping. But people can’t fly by flapping: not with wings covering their arms; not with pedalled, chain-driven wings; and, so far, not with internal-combustion engines, either. Nonetheless, the concept of ornithopters continue to hover on the periphery of aeronautical engineering.
An ornithopter is an aircraft that flies by flapping its wings. Designers seek to imitate the flapping-wing flight of birds, bats, and insects. Though machines may differ in form, they are usually built on the same scale as these flying creatures. Most ornithopters these days use a simple crank mechanism for flapping the wings. This doesn't allow much control over how the wings move. Thus, we have designed a mechanism that replicates the flight of a bird in the exact same fashion in an unmanned ornithopter. 
This movement that the wing has been designed based on can also be used in a variety of other robots for movements such as the legs of a hexapod.
The uses of an ornithopter are many. The ornithopter can be designed to look like various birds. An artificial predator under the control of an operator causes other birds to remain on the ground so they can be captured for study. 

Since ornithopters can be made to resemble birds or insects, they could be used for military applications, such as aerial reconnaissance without alerting the enemies that they are under surveillance.

First Mechanism Testing...





The first prototype....... 



3D printed model coming soon....

Team member:
Miss. Niveditha Kalavakonda

Fully Automated Solar Powered Irrigation System


Presently rural irrigation depends on the natural resources and experience of skilled farmers. There is frequent electric supply failure and rectification of the same takes weeks together in rural areas which adversely affects the irrigation and farmers may have to adopt for other sources of electricity and it is costlytoo. Presently there is no efficient and controlled utilization of water or fertilizer. There is also scarcity of labour. The proposed SOLAR IRRIGATION system will provide a solution to the entire farmer community which is low cost system and also will reduce the production cost and increase the quality & profit. The project Solar Irrigation is basically an automated irrigation system with electronic controls and monitoring that uses solar energy for its working. Our venture is an attempt to enhance India to develop its agricultural sector empowered with technology. This opens up opportunities for the educated section of India to contribute to the field of agriculture. 

Its main parts are

1) Solar tracker The solar tracker will keep tracking the sun and rotates the solar panel according to the position of the sun.

2) Automatic irrigation:

Automatic irrigation is done with the help of 4 sensors and solenoid valves. The data given by the sensors are interpreted by microcontroller, and it turn on both the mixer and motor according to the need of soil. The water-fertilizer composition is determined by microcontroller as it is programmed.

FEATURES

Solar Tracker:


The solar tracker will keep tracking the sun and rotates the solar panel according to the position of the sun.

• It uses 3 different LDR to detect the sun position A geared DC motor is use to rotate the solar array. The solar energy will increase by 75%

Automatic Irrigation:


• Selection of different type of field or irrigation
• Multi-field Control
• Automatic fertilization
• Battery powered
• Time based control
• Remote monitoring
• RTC control system
• Manual mode of control
• All record can be messaged to the owner using GSM

ADVANTAGES AND APPLICATIONS
• Fully automatic and work without any interruption.
• Efficiency of field and plant increases, since it has got nourishing whenever it needed
• No external power supply is needed since it uses solar energy for its working as well as for charging the battery.
• Attention needed is less and also time and labour needed for irrigation can reduced effectively
• Fertilizers are pumped directly to the field
• It can monitor the field condition (temperature, moisture. etc) continuously, which is not possible.
• It can be used with different crops by changing the temperature moisture ranges in the program according to the crop
• It can be used in the fields where daily inspection is not possible.
• It is well suited for places where there is a deficiency for labours

Amal Jyothi College of Engineering , Kanjirapally, Kottayam, Kerala

Team mates:
Mr. Avinash Prabhakar
Mr Sajin Babu
Mr Ashad UA
Mr Chandu Sasidharan

Guide: Prof Sathesh Kumar 

Awards:
Awarded the Best Technical Project In National Level in 2009 held by National Council for Science and Museum, Govt. of India. Contest held at Salt lake Stadium, Kolkatta during Infocom 2009 

Media 




Underwater Robotics

Working on
DEVELOPMENT OF A POP-UP ANTENNA SYSTEM FOR SENSING AND ALERTING SUSPICIOUS MOVEMENTS UNDERWATER SPONSORED BY NAVAL RESEARCH BOARD
Indian Institute of Technology Madras
Research Adviser: Prof. T. Asokan


Worked on 
DEVELOPMENT OF STATION KEEPING ALGORITHM FOR FLAT FISH SHAPED AUV (AUTONOMOUS UNDERWATER VEHICLE) SPONSORED BY NAVAL SCIENCE AND TECHNOLOGICAL LABORATORY


Indian Institute of Technology Madras
Research Adviser: Prof. T. Asokan


Robot for Bore well Rescue


                                Children often fall down in the borewell which have been left uncovered and get trapped. The rescue of this trapped children is not only difficult but also risky. A small delay in the rescue can cost the child his or her life. To lift the child out the narrow confines of the bore wells is also not very easy. The child who has suffered the trauma of the fall and is confined to a small area where, with a passage of time the supply of oxygen is also reduces.
                    Robot for borewell rescue offers a solution to these kind of situations. It is fast, economical and safe. Moreover, it has the facility to monitor the trapped child, supply oxygen and provide a supporting platform to lift up the child.

     

Amal Jyothi College of Engineering, Kanjirapally

Team Mates:
Mr. Jittu Varghese Kurian
Mr. Noble John


Awards
Awarded the second Best Technical Project In National Level in 2010 held by National Council for Science and Museum, Govt. of India. Contest held at Salt lake Stadium, Kolkatta during Infocom 2010 

Funded by NSTEDB, Department of Science and Technology, Govt. of India. It was one of the very first projects which got successfully completed in the stipulated time.

Currently funded by DST.




Videos



Press Videos and News Paper Clippings

http://www.ndtv.com/video/player/news/borewell-robot-to-the-rescue/98310

http://www.hindu.com/2009/08/19/stories/2009081960540300.htm











Coconut Harvesting Robot


                                                                                                                  
Introduction



In India, especially in the southern parts, harvesting of coconuts has become a difficult task due to the shortage of skilled labors and also because of the risks involved in it.  In order to increase the harvesting rate and the profit margin, a robotic system has been  designed and tested successfully. 

Design Objectives



The main objective of this design is to create a rugged system which can be easily attached and operated by an unskilled person.  It was designed keeping in mind low power consumption and extreme environments. 


Design Concept


Climbing mechanism:  It consists of a ring shaped base frame with three spring loaded wheels  which adjusts the diameter of the climbing system based on the size of the tree . It can easily accommodate the size variations and small obstructions on the wheel path. 



Robotic Manipulator:   The manipulator has 3 DOF and the base has got an additional DOF to slide on the base of the climbing mechanism. It has a rotary cutting blade as an end effector. The use of worm and worm-wheel s allows the mechanism to maintain its position without any  load on the motors.
Design Challenges and Innovation


•A major challenge in designing this mechanism was the variations in the diameter of the tree along its length as well as bends and curves of the tree. Designing the base platform to accommodate these variations was one of the challenges in.
• The major innovation is in the base design with spring loaded wheels. Addition of a robotic manipulator has greatly increased the utility of the machine, with lot of possibilities for further development.
Prototype Description



The system is operated by attaching the base frame to the tree with a latch mechanism and the machine  climbs the tree with the help of the spring loaded wheels which clamp on to the structure of the tree. Once the region to harvest is reached, the sliding manipulator arm can be used to locate harvestable coconuts and later they are harvested by the end manipulator.
 
The present prototype has wooden parts in certain places to counteract the buckling effect. In future, Fiber Reinforced Plastic (FRP) can be used for fabricating the components so that the system will be stronger and the weight can also be reduced. 



Project Adviser: Prof. T. Asokan
Indian Institute of Technology Madras

Teammate: Mr. Umesh Nettiyath


Prizes and awards
  •        Won the Design Award of Rs 1 lakh in the International Open Contest organized by Department of Industries and   Commerce, Government of Kerala in 2009.
  •     Won First prize in Student Mechanism Design Contest in NaCoMM 2011, National Conference organized by Association for Machines Mechanisms.
  •       Won Second Prize in GE Research Expo conducted as part of Shastra-2011 at IIT Madras.


Press Videos and News Paper Clippings ...