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Analog Canmera for security

What is an Analog Camera?

In this modern era, where theft is a common problem, privacy and security are the main priorities of everyone to prevent theft. Therefore, in this digital world, analog cameras are the best option against theft. Analog cameras are well designed with excellent features to help their customers monitor any unusual activities in their area and stop bulgulary before it happens. In this article, we will learn about what an analog camera is and how it plays a role in preventing robbery in modern society.

Definition of an analog camera:

An analog camera is a device that has been used for ages as a reliable security system. An analog camera is used for monitoring, storage, and analysis. It works by transmitting video through coax cables to Digital video recorders (DVRs) or Video cassette recorders (VCRs).

They are non-digital cameras. Analog cameras lack LCDs and depend on roll film to record data.

An analog security camera system is a device that consists of a CCD sensor, which is used to digitize the images for processing. But before sending the image, it needed to be transformed into an analog signal and sent to analog signal-receiving devices like video recorders, storage devices, TVs, monitors, etc. Analog cameras do not have integrated web browsers like IP surveillance systems, so analog cameras cannot independently connect to the internet. Therefore, to monitor the internet, you need an analog video card or video recorder. The most efficient method to stop theft and avoid intruders to break-in into your security system is the installation of analog cameras.

Components of Analog Cameras:

Here, the components of analog cameras are given below:

  • Camera:

It is the most important component of analog cameras. It is used for tracking motion, the collection of images, and surveillance via the internet. The components of an analog camera include the optical lens, CPU, eye of the camera, power supply, casing, and image sensor.   Analog cameras can rotate, zoom, or tilt, depending on their design.

  • Adaptor:

An adaptor is another important component of an analog camera. It is excellent at securing the cameras for surveillance. It is capable of converting electrical power from 220 volts to 12 volts.

  • DVR:

A DVR is used to convert analog signals from a camera and collect the recording of images for monitoring, digitizing, and processing. Every DVR recorder performs various tasks, such as:

  • Video input
  • Video output
  • Audio input
  • Audio output

  • Video recorder with hard drive:

A video recorder with a hard drive is also an important component of an analog camera. It is used for the collection, arrangement, and management of data recorded by the camera, including images and videos. Sometimes, the video recorder on an analog camera fails to recognize it’s hard drive. In such cases, the camera stops recording, so to avoid these problems, customers should buy a high-quality hard drive that is recognized by the DVR of their camera.

  • Wire:

Another important component of analog camera is it’s wire. Wires are used to transfer a stable power supply to the camera so it can properly monitor all the areas without turning it off.

Analog Camera System

Analog Camera Classification:

At present, analog cameras are classified based on their features in each system. 

Following are some of the famous analog camera classifications:

  • Universal Camera  
  • Anti-backlight camera. 
  • The camera has color at night  
  • Camera Zoom 
  • Alarm camera
  • Infrared camera   
  • The camera has a built-in mic

Types of Analog Cameras:

There are various types of analog cameras. Some of them are:

  • Bullet cameras
  • Dome cameras
  • Box cameras
  • PTZ Cameras
  • Turret Cameras

Advantages and Disadvantages of Analog Cameras:

Here are some benefits and demerits of Analog cameras: 

Advantages:

  1. Cost: The cost of analog cameras is significantly less than that of IP cameras. You can use the money you saved by purchasing analog camera for the installation of camera in your home or office.
  2. Easy-to-use: Analog cameras are very easy to use. They just need to connect with DVRs. You can easily use it without any special skills.
  3. Transmission distance:  With a twisted-pair cable, an analog security camera can send video up to 1.5 kilometers, while with coax cable, video can transmit up to 300 metres.
  4. Video quality:  An analog CCTV camera offers you high video quality with HD resolution of eight magapixels. You can purchase for clear video quality. But as compared to IP cameras, their resolution is low.

Disadvantages:

  1. Wireless connectivity is not supported by analog cameras.
  2. As compared to modern technology like IP cameras, the cabling used in analog security cameras is not compatible with them.
  3. In contrast to IP security cameras, the video quality is not that high for analog cameras.

Ways to Connect Analog Cameras to an Advanced Security System:

The methods to connect analog security cameras to advanced security cameras are given below:

  1. Upgrading to a Video Management System
  2. Using a DVR and NVR
  3. Using Two Recording Devices

 

Analog Cameras and Night Vision:

To get high quality images at night, some cameras have night vision features. These cameras use infrared (IR) radiation for high resolution images at night. By switching modes, these night vision cameras provide protection day and night. But analog cameras lack this feature, but as security cameras, when surveillance is needed, they work properly.

Analog System for scurity

Pros and cons of analog vs. IP security cameras:

Here are some pros and cons of Analog security cameras: 

Analog security cameras:

Pros:

  • Low cost
  • Simple operation

Cons:

  • Image quality and frame rate are lower
  • Need additional cabling
  • Lack of encryption

IP security cameras:

Pros:

  • Advanced functionality
  • Easy to install
  • High image resolution
  • High security

Cons:

  • Very expensive
  • demand more space for storage
  • Need high technical skills

Conclusion:

For almost half a century, analog security cameras have been in great demand due to their reliability. Analog cameras offer a great security system that can stop any crime before it even happens. It is available at an affordable price with easy installation. Analog cameras are time travelers. They save a series of memories in it. You can keep a record of data for a long time. It is very easy to use. You can use it without any special skills.