CCTV Security Camera News in Da Nang Vietnam

Should I use IP or Analog Cameras?



IP vs Analog Security Cameras

This chart illustrates the differences between IP and analog cameras. After the chart is an explanation of why people choose either IP or analog (CCTV) cameras.

How IP Cameras and Analog Cameras Differ

Analog (CCTV) IP
Resolution
cable
Click for larger image.
CIF
360 x 240
or
Full D1
720 x 480
Up to 1080p HD
Type of Recorder: DVR NVR
Cable/Connector RG59 Simese
BNC cable
RJ45 Ethernet
cable
or
WIFI
wifi
iPhone / Android Apps
Video Viewable over the Internet

A Common Misconception

It bears repeating that both IP cameras and analog cameras are viewable online. With an IP camera system, it is possible to view your cameras without recording them — and although you can use a computer or a cloud-based storage to record your IP cameras, you will still want an NVR (why you don’t want to use a computer to record your cameras is explained here and the reason why cloud-based surveillance systems aren’t viable solutions for most people are explained here).

In an analog system, the DVR performs both the online viewing and recording function. So, although analog (CCTV) cameras cannot be viewed online without a DVR, there’s never a scenario where you will have an analog system without a DVR.

Why people choose a IP or Analog

IP cameras are more expensive (by a factor of 5-10X), so what are the reasons that people might upgrade?

1. IP cameras give you the option to record in HD.

This is the main reason that people upgrade : higher resolution recording and viewing options (you can still record in lower resolutions, if you want to).

With analog cameras, you can record in CIF or D1 resolution. CIF DVRs have a 360 x 240 pixel resolution; while D1 DVRs have 4X the resolution of CIF DVRs and have a 720 x 480 pixel resolution.

Meanwhile, IP cameras can record in both CIF and D1 options, as well as 720p and 1080p. 720p has a 1280 x 960 resolution (16X the resolution of CIF) while 1080p has a 1920 x 1080 pixels resolution (or 64X the resolution of CIF).

2. IP camera cost may be greater, but installation costs may be much, much lower

Because most IP cameras can have their data and their power from one cable, and because that cable is CAT5 which is often already run in most offices and other corporate, industrial, educational, or governmental buildings, the cost to install a IP Camera system can drop to almost zero.

This can be a significant savings for large installations and can make up for the increased cost of the cameras.

3. IP Cameras can be made wireless.

All of our IP cameras have an option to add a wifi adapter that will allow you to not worry about running cable at all (We do recommend cabling whenever you can, however, as Wifi signal can be blocked – rendering a wifi-based system more insecure).

It is also possible to have IP cameras use long-rage wireless signals such as 3G/4G or Point-to-Point Long Range Wifi, enabling the creation of extreme surveillance solutions such as this solar powered wireless surveillance systems designed for use in remote locations. Analog cameras do not have these capabilities (or rather they do, but are based upon radio frequency and work about as well as a child’s walkie-talkie).

Further, More Technical Reading on IP and Analog Cameras

Both IP and Analog Cameras make effective and efficient security cameras. However, it can be confusing to decide which would be the better option for certain areas. Sometimes a camera that can capture complete details in high resolution is necessary. Other times may require a simple camera that scares away intruders and deters theft. While some owners may find they like having high tech options, others may be satisfied with simpler features. When deciding what system would be best for you, be sure to know what you need before purchasing a security camera.

Usefulness Of Analog Security Cameras

An analog security camera uses captures video images using a sensor. While the resolution of the sensor can vary, it is not able to be more than 720 pixels horizontally and 575 pixels vertically. Security footage is captured in 30 frames a second, or 60 ‘fields’. Next, the video is transmitted to the receiver. A singular coax cable is used to retrieve the video footage out of the camera. Video footage for analog security cameras is also made to be compatible with standard household televisions. Often, low resolution on analog cameras can force owners to be cautious with the selection of the lens and position of the camera. For some areas, an analog security camera may not be the best choice. An analog camera with a wide angled lens will not be able to capture a large area in detail. It simply does not have the capacity to capture quality footage on a bigger scale.

Usefulness Of IP Cameras

IP cameras derive their name from the term ‘Internet Protocol”. Internet Protocol is what is used to send information across the web. An IP camera records images very similarly to an analog camera. It uses a sensor to record new security footage. The images it records are transferred as compressed video frames data across a network connection. Essentially, an IP camera is a small computer. It has an operating system and many other features of a basic laptop or desktop. However, it cannot be programmed to do anything aside from it’s fixed functions. IP cameras allow you to have footage recorded in any resolution. Unlike analog cameras, IP cameras would be a fantastic choice to use for large areas that need footage in detail.

Comparison Summary Of IP And Analog Cameras

In summary, an IP security camera does not suffer from many limitations. In fact, it is virtually limitless. It has amazing potential for growth in the future and will only advance more with improved technology. IP cameras have fast performance and many other capabilities. They also are able to record footage in any resolution necessary. While IP cameras are like small computers, analog cameras also have their place in the security world. They are simple to use and effective. They get their job done without extra gimmicks, and provide security without taking up extra space. Either way, both systems have many attributes that could be used in an effective security system.