(Left) Harsh Mishra and Kamal Kant, students from Ranchi, display their model of Smart Security Guard at the regional science exhibition in Patna on Monday. Picture by Ashok Sinha

Two Class XII science students of DAV Kapil Dev Public School, Ranchi, have developed a model that could sense metallic objects and send pictures to distinguish a bomb from a belt.

Developed by Kamal Kant and Harsh Mishra, the model has been named Smart Security Guard. It intends to serve military purposes in plain lands and war-torn areas where human beings can’t access.

The model was unveiled at the three-day CBSE regional science exhibition, Science and Society, at DAV Public School, BSEB on Monday.

According to the developers, the rise in terrorist attacks, especially the Maoist mayhem in Chhattisgarh in May, inspired them to develop the model.

“Our innovation would help people know about the presence of an explosive at any place. It works on the latest android technology and people using the model should have a smartphone with android,” Harsh said.

Android is an operating system designed primarily for smartphones.

Explaining the system, Kamal said: “A small tanker-like device would be fitted with an android phone. This phone will have IP Webcam software that will run the entire show. Once the software is downloaded in the phone, it will ask for ‘start server’. Once you click on it, the software will create an IP (Internet protocol) address. Once the phone picks up images of the terrain it is running on, it will send pictures to the IP address it has created. A person, who has Internet access, can check the photos by clicking on the IP address. The speciality of the phone is it can click pictures even if the camera mode has run out of time. The camera can run in the background.

“Once the device senses a metallic object it will stream pictures of the object back to the IP address. The person monitoring it can check whether the metallic object is a bomb or a belt.”

Kamal said the model would initially cost between Rs 5,000 and Rs 10,000. “The technology can also be used in repairing railway tracks and for track surveillance. This can even be used as a fire extinguisher,” Kamal said.

Fifty models developed by students of Bihar and Jharkhand were displayed at the exhibition.

Sudhir Kumar, the principal secretary of parliamentary affairs, science and technology and CBSE regional officer S.U. Sorte were present.