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CCTV (closed-circuit television) is a TV system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes. CCTV relies on strategic placement of cameras, and observation of the camera’s input on monitors somewhere. The most common use of CCTV is in security camera systems. They’ve been found for years in areas like large retail shops, banks, and government institutions. Thanks to reduced costs in the manufacture of cameras and video recording equipment, camera systems are becoming more and more commonplace in smaller businesses, and even private homes.

Key Services Offered :

  • CCTV Installation & Setup
  • Security device Integrations
  • Repairs and Up-gradation
  • Maintenance Services.

Types of CCTV Cameras


Dome Camera

The dome camera is one most commonly used for indoor security and surveillance. The shape of the camera makes it difficult for onlookers to tell which way the camera is facing, which is a strong piece of design, deterring criminals by creating an air of uncertainty.

Bullet Camera

A bullet CCTV camera is a wall-mount or ceiling-mounted unit that is typically designed for indoor use, but can also be used for some outdoor applications. Many bullet cameras can also be waterproof by being installed inside protective casings, which protect against dust, dirt, rain, hail and other harmful elements.

IT Camera

IT Cameras are subset of Bullet cameras in which desired lenses are used to target long distances. These are generally called IT1, IT2, IT3.. based on the size of lens used in it. For ex, 6 mm lense is used in IT1 cameras to target 30 mtrs distance instead of regular 3.6 mm lens, 20 mtrs distance. These can also be varifocal to adjust the focal length instead of fixed lenses.

IP Network Camera

These cameras, both hardwired and wireless, transmit images over the Internet, often compressing the bandwidth so as not to overwhelm the web. IP cameras are easier to install than analog cameras because they do not require a separate cable run or power boost to send images over a longer distance.

Cube Camera

These are IP cameras suitable for any indoor applications with their elegant and compact design, having a wide range of H.264 and H.265 camera options for various lighting and installation conditions. For instance, with Extreme WDR technology, most of the models ensure clear image for locations with large variations in light intensity. They can even capture color details in a dim room using Superior Low Light Sensitivity technology. Additionally, they have built-in microphone for two way audio communication & also support memory card for internal recording.

Box Camera

Box cameras have detachable lenses to fit different applications. Standard, also called Varifocal Cameras. CCTV camera lenses can only cover distances of between 35 and 40ft, therefore with Box CCTV cameras, it is possible to use special lenses, which can cover distances greater than 40ft. Desired lenses can be used to use with variable focal lengths. These lenses are available in 3.6mm, 4mm, 6mm, 9mm, 12mm, and 15mm depending on the target focal distance.

PTZ Camera

PTZ – Pan/tilt/zoom – cameras allow the camera to be moved left or right (panning), up and down (tilting) and even allow the lens to be zoomed closer or farther. These are programmable. These cameras are used in situations where a live guard or surveillance specialist is there operating the security systems or is programmed to operate on its own. These are available in both HD Analog and IP types with different speeds of operation - 10x, 15x, 25x, etc and different target zooms- 100mtrs, 150mtrs, etc.

Panoramic Camera

The Panoramic camera is a single camera which allows you to record everything with a 360 degree panoramic view. These are also called 360 / Fish Eye Cameras. The strength of this camera can reduce the quantity of cameras needed to cover the same surveillance area but acts as 3 different cameras. These cameras have inbuilt Microphone to record voice and 2 way communication.

IP/NETWORK CAMERAS VS AHD CCTV CAMERAS HOW TO CHOOSE?

How to choose between IP cameras and AHD cameras? Many people opted for IP cameras, since the network camera systems are flexible and scalable. The problem with AHD video surveillance system (CCTV) is that they are a closed circuit meaning that everything is hard-wired and difficult to scale.

It’s therefore important to choose IP cameras, not the AHD cameras. The IP cameras can connect to network allowing you to easily grow and scale any installation as you need. When you need to add more cameras as time goes on, you can simply connect the cameras to the existing wired or wireless network and there is no change or update.

1# What’s an IP camera?

An IP camera, sometimes referred to as a network camera, the IP camera is comprised of both camera and computer components, usually it has embedded with Linux system. Like the traditional analog camera, it has a lens, image sensor, core processor and memory. The core processor is not only responsible for image processing and compressing, it also performing networking functions.

Compared with USB camera, the IP camera works as a standalone computer. It captures image, then compresses image by using the MJPEG, H.264 and the latest H.265 video compression technology, the network optimized video stream can be broadcast to LAN or WAN through different network protocols including https, RTSP, FTP..etc. By contrast, USB cameras only capture image and transfer video to the computer, don’t need to compress the video then transmit the video to network.

Many IP cameras offer additional features, including audio intercom, edge video storage, motion detection, intelligent video analysis. Some models even include alarm I/O that let the cameras connect to security sensors or to be integrated into different security systems.

2# Why choose IP cameras?

Many security manufacturers had already stopped producing the analog cameras. Because the IP cameras are the future. Global leading video surveillance camera manufacturer - Axis published an article titled “ten reasons to buy a network camera or what your analog camera vendor won’t tell you”. In this article, we are going to share with you this information.

Lower total cost. IP camera is no longer expensive than AHD analog cameras. People can buy a 720p analog camera and 720p IP camera at the same price. But when comparing the cost per video channel, and the network camera, with all its superior flexibility and performance, people can install IP cameras on existing IP infrastructure while installing analog camera required to use the coaxial cables. Moreover, IP cameras can connect to the wireless network or using Power over Ethernet technology to reduce installation cost further.

Digital system. Unlike analog cameras transmit raw analog data, the IP cameras output digital video signal that can be received by any network devices. Users can use web browsers, smartphone, tablet directly without needing a dedicated observation system or DVR. Without video compressing, the video can be recorded in these devices without further video encoding.

Security and privacy. Using an analog camera, the video signal is transported over a coaxial cable without any encryption or authentication. In this way, anyone can tap into the video or worse, replace the signal from a camera with another video signal. The IP camera can encrypt the video being sent over the network to make sure it cannot be viewed or tampered with.

Less cabling. IP cameras can use WiFi or Ethernet network to transmit audio, video and control signal simultaneously, if the IP camera supports PoE, the power supply can be transmitted through Ethernet cable. On the other hand, with analog cameras, the coax cable only can transmit video data. Audio, Power and Control signals should be transported over different cables. If the IP cameras support WiFi, users can easily setup a wireless camera system without running Ethernet cables. Apparently, the installation of IP camera system is easier than traditional analog CCTV system.

Improved efficiency. Many IP cameras can support motion detection, sound detection, tamper alarm. It can alert staffs through email or push notification once an alarm occurs. Some IP cameras support smart video analytics can alert you to suspicious activity can improve the way you run your business. Today’s smart IP cameras has built-in intelligent algorithms provide useful, actionable information, such as the total number of people that walk into a shop. Compared against sales, retails can assess the rate of conversation and the best times of day for promotions.

DVR (Digital Video Recorder)

A DVR is an innovative gadget that transforms the analog signals from a CCTV or Closed Circuit Television Camera into digital format, keeps or maintains the information in a hard drive and transmits live video stream to the Display units (Monitor or TV).

A Closed Circuit Camera, which has a DVR is not completely analog. The CCTV transmits the video signal in an analog format and the connected DVR transmits the received signals to the digital format prior to recording and sending over the respective network.

DVR

NVR (Network Video Recorder)

An NVR is a digital device that transforms the network signals from a CCTV or Closed Circuit Television Camera into digital format, keeps or maintains the information in a hard drive and transmits live video stream to the Display units (Monitor or TV). An NVR contains no dedicated video capture hardware. However, the software is typically run on a dedicated device, usually with an embedded operating system.

Network video recorders are distinct from digital video recorders (DVR) as their input is from a network rather than a direct connection to a video capture card or tuner. Video on a DVR is encoded and processed at the DVR, while video on an NVR is encoded and processed at the camera, then streamed to the NVR for storage or remote viewing. Additional processing may be done at the NVR, such as further compression or tagging with meta data.

NVR

DVR / NVR Resolutions

A DVR normally supports HD-TVI, AHD, CVBS, and HD-CVI technologies. The quality of video varies in each technology. Also, the DVRs are available in different resolutions.For instance, 720p resolution initiates from the quantity of pixels in the image, which is 1280 x 720 vertically and horizontally respectively. If you increase these pixels, you will get a complete 921,600 pixels that is equal to 0.9 Mega pixels. And 1080p resolution initiates from the quantity of pixels in the image, which is 1920 x 1080 horizontally and vertically respectively. If you multiply all these pixels, you will get 2,073,600 pixels, which is equal to 2 Mega pixels.

DVR / NVR Factors

There are certain important factors, which are needed to be considered while choosing a DVR/NVR like

  1. No. of Supported channels
  2. Maximum Resolution, 2 MP, 5MP,etc
  3. Maximum supported Hard Disk, 2 TB, 4 TB,etc
  4. Supported types of Outputs like HDMI, VGA, Video
  5. Online Mobile App, Client Software, etc

Video Door Phones

Video Door Phone
If you would like to know who’s at your door even before you open it, video door phones are your ultimate security solution. Open the door only for the people you know or trust to be more secured. And these can be integrated with Electronic Door Locks to access from other parts of the house. VDPs are widely used in homes, apartments and businesses, they’ve proven themselves to be reliable and crime resistant. Switch to a more secured way of living with an assured safety solution.

Biometric Devices

Biometric Devices
A biometric device is a security identification and authentication device. Such devices use automated methods of verifying or recognising the identity of a living person based on a physiological or behavioral characteristic. These characteristics include fingerprints, facial images, iris and voice recognition. Being used for Identification, these devices are more commonly used for attendance system to maintain transparency. Biometric devices, by integrating with Electro Magnetic (EM) door locks, can also control door access and restrict entry of people.

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