Monday, December 17, 2007

Guide for choosing the CCTV system

Uses of CCTV in India?

Closed circuit television(CCTV) simply means that the signal is not being broadcast anywhere, but rather is traveling by wire from the source to the receiver.Usually a closed-circuit television (CCTV) system uses a stand-mounted or hand-held video camera to project a magnified image onto a video monitor or a television (TV) screen.

Uses of CCTV includes-

  1. To provide a deterrent to crime and vandalism.
  2. To enable 24 hour monitoring of all the designated areas.
  3. To enable clear identification of miscreants within the range of the CCTV cameras.
  4. To provide continuous recording of all CCTV cameras in the system.
  5. To enable rapid movement of any CCTv camera to pre-set positions of pan, tilt and zoom.
  6. To provide independent viewing of any CCTV camera at the controlling station.
  7. To enable live, real time recording of selected CCTV cameras.

CCTV system should be used at offices, factories, restaurants, shops, workshops, schools, colleges, hospitals, airports, banks, malls, industrial and comercial spaces.

Which type of CCTV systems ?

CCTV camera, recorders( DVRs), Monitor and peripherals like lens, panning unit, controller etc forms a CCTV system. The CCTV system should be customized according to individuals need. First one should analysis the need for a CCTV system. The target for the intruder, is it material goods or information? Strategical placement of cameras and monitoring unit is equally important.

Feature to look for in CCTV systems.

User friendly operation
High resolution & Good quality images
High compression ratio to save hard drive space and band width
Power efficient to save running cost
Easy recording, search and back up
Pre Sales & After Sales Support
Current Dated Technology
Our product- CCTV System

Feature to look for in CCTV DVRS.

DVR is abbreviation of Digital Video Recorders
Digital image data is compressed and stored in Hard Drive
There are several types of DVR- PC based DVR, Industrial Computer Based DVR, Networked DVR, IP Based Camera and web server
Read more - CCTV DVR

Friday, October 19, 2007

Metal Detector- uses and features

Uses of metal detector?
Uses of metal detector include de-mining (the detection of land mines), the detection of weapons such as knives and guns, especially at airports, malls, geophysical prospecting, archaeology and treasure hunting. Metal detectors are also used to detect foreign bodies in food, and in the construction industry to detect steel reinforcing bars in concrete and pipes and wires buried in walls and floors.
Which type of metal detector?
Door frame metal detector or walk through detectors are ideal for Building entrances, malls, airports, market or factory entries. For added security hand held detectors are used. Hand held detector can be used in internal premises. Door frame detectors are designed to withstand external climate- hot humid or rains.
Feature to look for in Door frame metal detectors
Water proof

Rugged yet aesthetically designed

In- built Rechargable maintenance free battery

Detect both ferrous and non ferrous metals

Sensitivity control knob for precised setting at desired levels

Base should be covered with synthetic carpet for durability

Recommended product- Sentry series door frame detectors
Feature to look for in Handheld metal detectors

Sensitivity control knob for precised setting at desired levels

Detect bothferrous and non ferrous metals

Sensitive, rugged and dependable

Recommended product- Metaprobe 02

Wednesday, September 12, 2007

How to make your home safer?

Posh areas of Delhi are considerably under spotlight. This time because of a increase in house robberies. According to Indian express article-

``There are three kinds of areas that are prone to robberies in Delhi,'' an officer at the Lajpat Nagar Police Station told Express Newsline. ``Places like Neeti Bagh and Gulmohar Park in South Delhi where the well-off live; places that are well-connected to the Ring Road as it is easy for the robbers to get away with the loot; And finally, places that are not well-lit.''

Commenting on the situation in northwest Delhi, DCP (north-west) Satyendra Garg says: ``It is a border district and therefore more prone to robberies. Investigations have revealed that most of these robberies have been committed either by novices or by gangs based in Haryana. Many of the robbers are dhobis or drivers: They are not starving, but think they will make a quick buck by robbing people.''

Statistics available at PHQ reveal that robberies have been the largest contributor to the 12 per cent increase in crime since the beginning of this year as compared to the whole of last year: 364 cases of robbery were reported till June 30.

While 46 cases were registered in June, at least 31 were registered during this months till yesterday.

Question to deal with is - IS YOUR HOME SAFE?
The more important aspect is to educate oneself of the right security systems for your home. A security system has following components-

The input devices ( which trigger the alarm)
The output devices( which communicate the alarm like speakers)
The Control panel( networks between the devices and is a interaface for user)

The following weeks we will discuss the functioning of these devices and factors one should consider while choosing an alarm system

Monday, September 10, 2007

7 most trusted home security tips

How to make sure your home security system is perfect for you? Check out these essential advice on home security systems.

7 Factors In Handling Home Security
Getting your own home security system won’t go as smoothly as you might think. Like every other purchases you’ll make, you’re bound to discover that in having a home security system there are also a few thing to consider and check upon.

There are 7 factors to consider when getting your home security system

1. Choosing your security company

This could mean a big risk to your safety. A security company who won’t live up to its obligations might become negligent to the potential risk you could be in.

You should go for a security company that has established trust among many and have proven that its products are reliable and effective. Make sure to communicate well with the security company, too. The company should have representation near you.

For home security in India check out

2. Installing your home security system

Home security systems won’t work well when installed incorrectly. It would be wise to consult with an installation expert, or better yet have the installation expert handle the installation. If installed the wrong way, your security system might not work and this’ll become a big problem when you will need help in the future.

Another frustration when a home security system is installed incorrectly is false alarms. It has been determined that one of the causes of false alarms is the wrong installation of home security systems.

Always make sure to check your home security system if it works properly when you get it installed.

3. Monitoring services

There are companies that allot their monitoring tasks to third parties. This would imply that not only do you have to check the background of your security company, you’d also have to check with the monitoring company it employs. Separate entities, separate levels of trust and reliability. Make sure to check with your monitoring company’s response time at least every month.

4. Compatibility with the phone line

For those using VoIP, you might want to check if your home security system is working compatibly with your phone line. There has recently been an issue that there are some security systems that do not work well with VoIP.

There is also what we call the “phone line seizure”. This means that your phone line is connected first to the control panel, and the control panel will direct the phone to the rest of the house. If you hear a sound like a phone number being dialed when you’re on the phone, this would mean that your phone line wasn’t connected properly to execute the phone line seizure.

5. The batteries

We all know the problem with batteries. They are not permanent. As they get older, they lose the ability to charge properly. Home security systems will give you a warning when the batteries are low, but it might still not be able to perform to its fullest because it’s not charged enough anymore. Worse case scenario will be if the power goes out and that’s only when you’ll know that your battery has insufficient charge to supply. You should always check your batteries, and call your monitoring company when a problem arises.

6. Proper location for your home security devices

You should always select the best possible places for your security devices. A motion sensor, for example, detects motion on an open area that it covers. If it is blocked, then the motion sensor would be useless. Smoke detectors will be able to detect smoke better when they’re placed in the center of the room (in the ceiling).

7. The kind of security devices you have

When it comes to home security, quality rises far ahead over quantity. No matter how many locks you install, if they’re all faulty and break easily, your investment might as well have gone down the drain.

It would also be better that you get the most durable and most effective if you can afford it. This applies to every device and equipment in your home, even if it’s just your back door lock.


Thursday, August 30, 2007

Video compression for DVR in CCTV systems

DVR stands for Digitals Video Recorder. Advantage of using a DVR technology over analog recording is that the Digital Data recorded by DVR can be compressed and saved in special hard disk and can be reviewed later. Video compression plays an important role in overall operation, properly compressed video can also save disk space.
All DVRs use some kind of compression algorithm called a codec to keep the digital video files at a manageable size. The average size of an uncompressed still image frame at 320x240 resolution in 24-bit true color is about 230400 Byte or 2.3 Mega Byte. Same image frame in 32 bit color is about 307200 Byte or 3.07 Mega Byte.

An hour’s worth of one channel of uncompressed video at 25 frames per second would take up 21,600 megabytes (21.6 GB)

Uncompressed video of one hour will take hard disk space

Frame size 320*240 Pixel at 25 frames per second would take up
25*3600* 230400 Byte = 20736 Mega bytes
= 20.736 GB (24 bit color)
25*3600* 307200 Byte = 27648 Mega bytes
= 27.648 GB (32 bit color)

Get CCTV technology in India from Digitals India. Visit

Tuesday, August 21, 2007

Audio Video door entry explained

av door entry system ensures your safety, safeguard your home and can be linked to alarms.

Audio video door entry system comprises of a audio or video outer panel with a bell or the camera unit which is installed outside the gate or the door , a monitor or phone from which we can communicate with the visitor- these can be audio or video door phones.
This can be teamed up with accessories like electric lock release, telephonic unit etc

Apart from this we need a system through which device communicate to each other.
All these needs a perfect system integration and full customization for your requirement.

Digitals india offers you FERMAX range of audio video door entry systems in India. FERMAX is one of the most reputed company worldwide for audio video door entry phones.

Tuesday, August 14, 2007

How to ensure home security?

Home security is as important as home itself. There are three steps of security- prevention, detection and post investigation in case of unfortunate event.
It would not be contradicted if we agree that the foremost importance is the step one: prevention.Following measures can help us prevent such events

Physical and electronic barriers must be introduced.
Physical barriers - Deter and slow the entry of criminals into a restricted area.
Outside chain link fences.
Exceptionally strong doors.
Quality mechanical locks.
Appropriate inside and outside lights.
Audio video door entry systems- to restrict entry


Sunday, August 12, 2007

What are prime requirements for CCTV system?

Prime requirements for CCTV system are-
Product Reliability and robustness.
User friendly operation.
High resolution & Good quality images.
High compression ratio to save hard drive space and band width.


Saturday, August 4, 2007

What makes a good images in CCTV ?

Following factors determine the quality of images in CCTV systems-
Proper selection of good quality lens
Lighting Conditions
Resolution and Quality of camera
Placement of camera
Video compression technology
Information source: digitals India

Does CCTV makes you really secure?

The answer will be No. The most measurable effect of CCTV is not on crime prevention, but on detection and prosecution. CCTV reduce or deter crime. Shopowners and factory owners can benifit by constant surviellance on their premises. CCTV also bring about a psychological fear among the people that they are being watched.

CCTV is a boon in post incident investigations. But in some cases in has been seen that the equipment used for recording the incident was so poor that it was difficult to identify the thief recorded through CCTV.

Good quality images and superior technology in recording and storage are of prime importance in the system.

Read more on about latest products and technology.

Friday, June 8, 2007

CCTV : A must Security measure

CCTV is very powerful and effective security measure as compared to others
A CCTV systems comprises of following components- camera, recorder, monitor, storage and peripherals.

CCTV cameras are the image capture elements essential in security sytem. Selection of right cameras is based on the purpose, application and installation requirements. Installation location( indoor or outdoor) also plays a vital role in determining the right combination. The types of cameras used for CCTV systems are Fixed minidromes, high end cameras, compacta cameras, IP cameras and speed dome cameras.

In a CCTV system, monitor is used to display images captured by the camera. The selection of monitor depends on the image quality and storage space.
Types of monitors used for such system is TFT monitors and CRT monitors.
Storage is another important component in CCTV system the latest technology is offered by seagate specially for CCTV systems.

Selection of proper types of camers, lenses and housing are very important for a good video surviellance system. Indoor and Outdoor locations, lighting conditions and environment are the important criteria for selecting these components.
visit for more information on CCTV systems. download CCTV brochures


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