What is disadvantages of cctv?

Answer 1

AnswerThere are now a few great products that allow teachers to record their best classes and, over time, create 'teaching-banks' of their best lessons. This 'teaching-bank' can be networked and accessed 24 hours a day by pupils who are sick or unable to attend school, as well as by trainee teachers looking to hone their teaching skills.

The market leading product internationally is Star Lesson (www.starlesson.com)

This will be one way of monitoring the children or students inside the classroom. With this, you could retrieve any recorded event inside the classroom that could be use to enhance the way the class is being managed. This will also be a medium to monitor abuses made not only by the students but also the teachers. Knowing that someone is watching over them would also miimize vandalism, bullying or even cheating inside the classroom.

Teacher's performance evaluation can be done on the basis of video footage. Moreover, any undesired event can be captured for administrative point of view.

Answer 2

One of the immediately obvious advantages is that the unit is no subject to the failure of any type of wiring. The cameras make use of wireless technology to accomplish the task at hand. This absence of wiring that could fail or be cut means there is much less chance of something going wrong with the unit, or that a clever thief can circumvent the system by severing the connection. Short of ripping the entire camera out of place, there is not much that will slow the unit down. Another advantage has to do with the clarity of the images that are captured. Most of these wireless units have a high-resolution image that makes it very easy to identify faces and other physical characteristics. This makes the cameras ideal for use as part of the security for research facilities and other establishments. Security personnel can easily monitor all activities within range of the cameras, and clearly note any suspicious or unauthorized behaviour, while getting a clear image of the person engaged in the activities. Recording is another advantage of these wireless cameras. In times past, storing recordings could be quite a task. From magnetic tape to VHS tapes, storage could become quite a problem. Many of the units on the market today make use of CDR technology, making it possible to store more hours of surveillance on a single disk. This can be crucial for law enforcement officials, as well as persons who are responsible for conducting security in office buildings and manufacturing facilities. Another advantage of these newer models of wireless surveillance units is that they are usually less expensive than most people would think. In fact, it is possible to purchase these types of cameras at a significantly less amount per unit than many of the wired counterparts on the market today. Coupled with the fact that wireless units make for much easier installation, it should come as no wonder that more and more people are choosing to go wireless for their security camera needs.

Answer 3

CCTV cameras are great because they are a fairly inexpensive and easy way to add a lot of security to a home or business. CCTV camera systems can be set up to record everything that goes on and even to be viewed from a remote location over the internet. There are lots of different types of CCTV cameras and setups which means you can tailor it to your own needs.

Answer 4

Unlike a souvenir the pictures you take with a camera cant get lost, especially if you save them to your computer. You can also crop, brighten, and add effects to your pictures with Adobe photoshop or Microsoft Picture Manager.

Answer 5

Police are also struggling to cope with the rapid advance of digital technology

Answer 6

the quality can be so badthay they wouldn't be able to use the tape :P:P