Technology And Technology: The Importance Of Technology

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Due to frequent technological advancement that we see in everyday life, the gadgets we use are always get updated within a short span of time. Sometimes these technological updations will result in extinction of traditional devices which may not be much useful in this fast changing world. The new one will entirely replace the traditional one with a bunch of additional features added over it, even for a cheaper price.So virtually we can say that technology is changing the world and humans are being get adapted to these technological changes resulting in an enhancement in their standard of living. Since this technology realm can be seen in every area of life, there is nothing specially mention that the field of security system developments…show more content…
In this system two wide angle cameras are used to trace the 3D position of the eye. The pan, tilt and focus of these narrow angled cameras are get adjusted to get high resolution image of the eye. Certain calibration methods are designed to manure the pan and tilt of the system with a help of a virtual camera. The narrow angle camera always track the eye even the user moves his head and with the help of 2D mapping technique and pupil centre corneal reflection vector (PCCR).The PCCR vector base technique is used to overcome degradation felt during the head movement of the people. The average of two point of eye gaze is used to find the exact eye position. Although this technique provide better recognition, but it is a costly in terms of its requirement of huge screen and high resolution digital wide angle cameras. One of the modern trends seen now a days in the security systems is the development of products based on sound and face recognition. These methods are non-intrusive types which are much accurate without causing any kind of disturbances to the…show more content…
The high rise buildings in the cities mostly use different kind of sensors for the protection of their limited spaces (home, parking etc).The mounted sound sirens that are activated during the mishap gives a loud beep for few minutes. The assessment of these sound signal direction and by measuring different parameters, the location can be identified. We can use these results to rotate cameras to capture live videos of the situation and send it to the database for further verification. Microphone arrays are arranged in required configuration according to the geography of the area to be supervised. They can be linear, circular, rectangular microphones arrays that are best suited for the intended purpose. Microphone arrays have many advantages. Firstly the beam forming can done digitally so as to control all dangerous directions using only a single microphone array. Directional microphones such as parabolic microphones do the purpose but a lot of such microphones are required, because each microphone only controls one direction. All noise signals can be adaptively rejected which increase the detestability from the sensors and improves the security of the targeted area. For a comparison with directional microphones noise signals are not purely removed and they interfere the detection of the signal. They can generate different beam pattern and can collect information from different sources.Singnal power
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