SURAKSHA: CONSTRUCTION & WORKING OF SURAKSHA
Students Participants: Nitish Aggarwal (11ECU094),
Nishant Bharadwaj (11ECU 90) &
Nishant Ahlawat (11ECU 98)
Project guides: Ms. Charu Rana
As Socrates said-
“The secret of change is to focus all of your energy not on fighting the old but on building the new”
SURAKSHA- A security system for women. This is a security device specially designed for women that will help them in situations of distress. It can be initiated either by a switch or voice or by applying force such as throwing the device and transmitting distress signals to Police Control Rooms in the vicinity and also to a phone number of a guardian registered with the device. It uses technical concepts based on GPS, GSM, Piezoelectric sensors voice recognition and 8051 family’s AT89C52 microcontroller. This work manifested into a patent application which has already been submitted, and is pending approval (patent number 2678/DEL/2013). In addition, SURAKSHA was awarded a young Thinkers Award by Department Of Science and Technology (Govt. of Haryana) and Research paper in international journal of information and computation technology-ISSN 0974-2239.
The device can be actuated by three ways namely, voice, switch and force. Therefore, even if the device is thrown with force, it will start functioning, using force sensors, and same will be achieved by a voice command in case the device is not near the user. A mere press of a switch will send location as well as distress message, via the transmitter module to the police control room and to the other registered mobile numbers, via GSM module. 'Suraksha' is a unique, low cost, sleek, user friendly, real time and all weather devices in the hands of the women or any victim which can help protect them from anti-social elements and criminals to give them the freedom and confidence to live their lives, without any fear or insecurity.
It can play a major role in the upcoming projects such as CCTNS (crime and criminal tracking network and system) in which all the police records all over India are digitised and all the police station throughout the country will be integrated. This would help reduce crime against women flashing a warning giving an instant location of the distressed victim to the police.
Since it can be miniaturized (started working) and it can be embedded in watches, bands, jewellery, work places and automobile etc. Thus it is a user friendly, easy to carry device.
DEXTO: EKA: THE HUMANOID ROBOT
Students Participants: Himanshu Vaswani (11ECU061),
Yash Gupta, (11ECU178) &
Sumit Gupta (11ECU157)
Project guides: Mr. Sidharth bhatia
ABOUT DEXTO: EKA:
Dexto: Eka: is a tele-operated anthropomorphic robot with three modes of operation: dependent, semi-sovereign and sovereign. In the dependent mode, the tele-operator has complete control over the robot. In the semi-sovereign mode, the tele-operator has partial control but the robot is able to make decisions of its own should a situation prove detrimental to its well-being. In the sovereign mode, the robot has complete autonomy over its actions.
Dexto: Eka: has two robotic arms of 6 Degrees of freedom each and an omnidirectional Mecanum wheel drive. The Mecanum wheel drive is quite unique as it provides motion with no directional restraint and can easily navigate though congested spaces. It also gets 10 Degrees of freedom from its locomotion drive. Such a system combining 12 DOF arms and a Mecanum wheel drive is unique to Dexto: Eka:. The communication between the robot and the tele-operator takes place via a Wi-Fi channel. Latest Wi-Fi module called RN-XV module is being used to achieve wireless communication. The tele-operator is able to see the environment the robot is in via a live feed provided by an IP Camera mounted on the robot.
The robot is able to mimic the motions of the tele-operator with great accuracy. Every joint of the robotic arms can be controlled using the wearable exo-frame. The GUI besides monitoring the robot can also act as an alternative to the exo-frame and control column. The robot can be completely controlled from anywhere in the world using the software that has been exclusively developed for it. Some of the important uses of the robot are the ability to work in hazardous conditions which are too dangerous for the humans, Cutting-edge advertisement and advanced prosthetics to name a few.
DEVELOPMENT OF MIX DESIGN & STUDY OF STRENGTH & DURABILITY OF SELF-COMPACTING CONCRETE USING WASTE MATERIALS
Students Participants: Shwetang Kundu (11CVU040)),
Sumit Ahlawat (11CVU042) &
Utsav Jain (11CVU044)
Project guides: Ms. Prachi Sohoni
Self-compacting Concrete (SCC) is a concrete, which has the usual components along with Super-Plasticizer that can flow around reinforcement and consolidate within formwork under its own weight that exhibits no defects due to segregation or bleeding. SCC reduces labor efforts and allows faster construction with no bleeding and segregation and hence better strength and aesthetics. The work on SCC initially started in Japan but it could rarely be adopted in India due to the limitations as the codes practised in India are different from that of Japan. There is very little research work done on SCC in India and no fixed mix design procedures are stated in IS codes. Hence we chose to compute a design procedure by conducting trial mixes referring European and Japanese standards and keeping parameters from Indian standards. It was proposed to study the strength and durability of SCC. We performed 21 trial mixes for development of mix design, keeping workability (Slump cone test, V-Funnel Test and L- Box Test) and strength (Compressive & flexural) as parameters. Out of which 16 trials were found to be acceptable in terms of workability. Of these 16 trial mixes, 7 trial mixes gave us strength results conforming to IS 456:2000.
The cost of SCC was found to be higher due to addition of Super-Plasticiser (S.P.) as compared to conventional Concrete. Therefore we decided to go for partial replacement of cement. Cement was partially replaced with a combination of Rice Husk Ash (RHA), Micro Silica (MS) and Fly Ash (FA). Number of cubes and beams were casted and tested to check for compressive and flexural strength respectively. Further the trial mix was chosen giving optimum replacement. The same mix was then tested for compressive strength considering variation in curing temperature as 70C, 280C and 400C at 7 Day, 28 Day and 48 Day. The trial mix by replacing cement partially with 5% Rice Husk Ash and 15% Fly Ash had achieved optimum strength and workability. Cost analysis was carried out for a batching plant to produce SCC with a combination of Cement, FA (15% of Cement), RHA (5% of Cement) and Super plasticiser (as 1.2% replacement of cement) with a defined proportion of fine aggregate, coarse aggregate and water.
A proposed batching plant gives 28.68% rate of return by reducing on site construction cost which includes labour and application cost (10%), demolition cost and reduction in rework. The estimated production cost gives a reduction of INR334.46 per cubic meter.
This project offered great prospects in terms of its usefulness to society including Employment of unskilled labour rather than skilled labour. Construction sites with SCC may have less noise pollution & reduce the construction waste due to honeycombing. The trial mixes not only showed industrial application but also displayed an impressive reduction in production cost and application cost.