Machine detects examination fraud

This device can "detect" the type of ultra-small headphones sewn in the shirt or leave deep in the ear that the supervisor cannot detect.

Mr. Ton That Truong Nam (29 years old), a technician at the Faculty of Nature and Technology at Tay Nguyen University, has manufactured equipment that can detect fraud in examination . This device is applied at school.

According to Mr. Nam, there are micro devices on the market such as music players and headsets using bluetooth and WiFi waves . to cheat on exams. Many ultra-small headphones, dropped deep in the ear detection can not detect. These devices are quite cheap so they are "trusted" by students .

Mr. Ton That Truong Nam explained about his detection machine - (Photo: CENTER).

Mr. Nam said his device measured the electric wave from the sound coming from the phone speaker, the tiny headset dropped in the ear from a distance of 8-10m.

This device can monitor " hand " in the examination room. The device lights up when there is an audio signal (from micro devices) outside the examination room. Just direct the antenna into the classroom, the device will locate the student who is cheating to request a test.

"There are students who use the phone to connect to the outside to read and copy but still discovered. There are cases where students cheating in class have been arrested but people outside still read enthusiastically and asked" is it done? Until the lecturers answered "done", the other person knew he was revealed " - Mr. Nam said.

Mr. Nam added that many telephone devices and sound transmitters through microphones are made very sophisticated.

"Once we detected the sound waves emanating from an examination room, detecting the exact location where the sound came from but the continent could not see the device. It was only later that the" phone "was discovered by this student. Like an ATM card, it is pinned in the wallet.

Once I caught a student using a micro-device that sank in my shirt . Without a detector, I would definitely not detect fraud, " Nam added.

Assoc. Prof. Dr. Tran Trung Dung - Vice Chancellor of Tay Nguyen University - affirmed that through many examinations, the school knew that many students used high-tech electronic devices such as telephones, signal generators and super headphones. small . to cheat on exams. However, it is not possible for every supervisor to search for each student, so it is very anti-educational.

"The reality is that there must be electronic devices that can be detected remotely without affecting the psychological examination of students" - Dung said.