What Is the Difference Between Analog and IP Security Cameras?
Is your manufacturing company thinking about installing a video surveillance system or upgrading your existing security camera system? At Conzer Security, Inc., we think it’s important to educate our customers and potential clients about the surveillance industry, so you can make informed decisions concerning your company’s security. Therefore, one of the first things you need to consider when choosing a video surveillance system is the type of security cameras that will best meet your company’s needs.
There are two primary types of cameras that are used in video surveillance systems: analog cameras and internet protocol (IP) cameras. Each type of camera operates differently and offers specific benefits, which we explain below.
Analog Security Cameras
Analog security cameras have been used in the security industry in closed circuit TV (CCTV) systems for more than 30 years. Originally, analog cameras transmitted a signal via a cable to a television and VCR, where the video was recorded on a tape to be watched later.
Today, modern analog security cameras capture and send an analog video signal over a coax cable to a digital video recorder (DVR). The DVR digitizes, compresses and stores the analog video signal on a hard drive for later retrieval. The video is archived for a specific number of days and kept on a first in, first out basis. The DVR has built-in intelligence for options such as scheduling, motion detection and digital zoom. To view the video, monitors are connected to the DVR. Or, the video can be accessed remotely over a local area network (LAN).
To install analog security cameras, long expensive cable runs and cable are required.
IP Security Cameras
First developed in 1996, IP security cameras have gained more popularity in recent years. IP security cameras capture and digitize analog images using an encoder, that contains a web server, within the camera. Some digital processing like compression and motion detection can also occur within the camera.
The digital video is sent from the camera via IP, or packetized video streams, over a local area network (LAN) using Ethernet (CAT5 or CAT6) cable to a network video recorder (NVR). While IP security cameras need to be connected to the same network as the NVR, they don’t require a direct connection to the NVR.
The NVR captures, compresses and records each IP camera’s signal. Additionally, the NVR has built-in software that enables features like intelligent search and zoom. For local or remote viewing, the NVR combines the video from the cameras and broadcasts it over the LAN or the internet, where it can be viewed on a web browser.
To operate, IP security cameras use power over Ethernet (PoE). Therefore, only one cable supplies power to the camera and transmits video.
Other Distinctions between Analog and IP Security Cameras
Some other notable differences between analog and IP security cameras include:
- Video Quality. Analog cameras have low image resolution, which is measured in television lines (TVL). IP cameras capture high-definition images in megapixels. The higher the pixel resolution of the camera, the better image quality you’ll receive.
- Aspect ratio. IP cameras record images that are larger and wider than analog cameras. Therefore, you can monitor the same area with fewer IP cameras than you could with analog cameras.
- Broadcasting. Images can’t be broadcast live with analog cameras. However, with IP cameras, multiple cameras can be monitored from one remote location, anywhere in the world.
- Installation. IP cameras are easier to cable while analog cameras require long expensive cable runs.
- Cost. Generally, IP video surveillance systems are more scalable than analog camera systems and with a much better cost-to-benefit ratio. IP cameras are more expensive, but you are paying for better cameras with better resolution, not cabling and labor. Those differences offset each other.
Which Type of Camera Is Best?
If you’re wondering which type of camera – analog or IP – is best for your manufacturing operation, let the video surveillance experts at Conzer Security help you. We will work with you to determine your individual security needs and then identify the best solution for you based on your budget. In addition to configuring and installing your video surveillance system, we can also monitor and maintain it, too.
Whether you need a widespread solution to cover multiple locations or a few cameras to cover a specific area, contact us today at 317-580-9460 to learn how the security camera leaders at Conzer Security can assist you.