Innovations By TU-K Students

 Innovations By TU-K StudentsThe ongoing exhibition has presented the best opportunity for our students to exhibit their innovations. Participants and visitors have been flocking the TU-K stand to have a glimpse of the innovations as well as enquire about programmes offered by TU-K.
Here are some of the innovations by our students.

TEARDROP COLLECTION
Exhibited by Ombaso Benard Mirera

Boardrooms are known to host serious meetings and discussions. Sometimes they can be monotonous. To kill boredom, a Technical University of Kenya student has come up with a Teardrop Collection. Ombaso Benard Mirera, a 3rd year student pursuing a Diploma course in Fashion and Textile Design, has come up with an innovation of a parrot cage, designed in the shape of a teardrop. And there is also a coffee table.
“The 3D teardrop shape is used to create an executive boardroom table and a bird cage,” he says. Human beings tend to respond to nature with a smile or rather a sense of happiness especially after a sorrowful experience.
In boardroom environment he says, the parrot can imitate the chairman of the meeting and repeat the statements later therefore bringing laughter in the room and adding a soft touch to the discussion. “What the chair needs to do is to maintain eye contact with the parrot especially when emphasizing on some phrases. The parrot will repeat the same,” adds the innovator.
Mirera explains that the cage has got a coat hanger where the chairman can hang his coat as a sign of authority.

And there is a boardroom table which contains a self made clock, below the teardrop shaped Perspex glass. The teardrop represent deep sorrow and therefore the clock symbolizes a sigh of relief. As the clock ticks, the minute hand encourages the sad person that, ‘Despite what you are going through, just press on.’

EXPOSING CONCEALED COMMUNICATION DEVICES
Exhibited by Boniface Mutegi Kithinji

Universities and institutions of higher learning are striving to stop exam cheating and produce credible results. Media houses, Security institutions such as military barracks as well as correctional facilities such as prisons prevent photographing and recording of information for security reasons.
The evolution of mobile phones therefore pose a great threat to security of individuals well as institutions.

Boniface Mutegi Kithinji, a 4th year student pursuing a Bachelor of Technology, Technical and Applied Physics, is confident that crime can be tamed. The student has come up with a gadget that can detect a cellphone in an examination room and in other institutions. “This can sense an activated mobile phone from a distance of one and a half meters. Therefore, it can be used to prevent use of mobile phones in an examination room, hospital or any other restricted areas,” says he.

He adds that the system is able to detect both the incoming and outgoing calls, short messages known as SMS, video transmission, etc. It is also able to sense when the phone is connected to the internet or is on silent mode. “The advantage of the cell phone detector is that it is smaller in size and can detect a hidden mobile phone,” he emphasizes.

How the detector works
It detects Radio Frequency (RF) transmission signal from an activated mobile phone, by sounding a beep alarm and the LED blinks. The alarm continues until the signal transmission ceases. An ordinary RF detector using tuned IC circuit is not suitable for detecting signals in the Gigahertz (GHz) frequency band used in mobile phones.

The transmission frequency of mobile phones ranges from 0.9 to 3 GHz a wavelength of 3.3 to 10 cm. So a circuit detecting gigahertz signals is required for mobile bug. The lead length of the capacitor is fixed as 18 mm with a spacing of 8mm between the leads to get the desired frequency.