Surveillance Systems

IP Surveillance

IP surveillance involves an Internet protocol camera, which is a digital video camera that sends (and receives) data via a network. Such cameras are typically different from "webcams" which are used mostly for video chatting. IP cameras, on the other hand, are typically used for surveillance.

Two kinds of surveillance cameras exist: centralized IP cameras and decentralized IP cameras. Centralized cameras have a Network Video Recorder, or NVR, which handles the alarm as will as the video and recording. A decentralized camera, on the other hand, has those functionalities built in. A decentralized camera can therefore connect directly to flash drives to record and store media.

Advantages of IP Cameras

IP surveillance has grown popular for a number of reasons. First of all, IP surveillance cameras have a higher resolution than standard security cameras. The image quality is very high. Also, the cameras can easily be moved around, and placed anywhere on the network. The cameras can even run on wireless (the configuration is initially done through the router).

Unlike traditional video cameras, IP surveillance cameras offer remote accessibility around the world. Live surveillance can be seen on smartphones, computers, and other devices around the world. So, for persons who would like to tap into their security on vacation or on business trips, IP surveillance is ideal.

Furthermore, for large systems, IP surveillance proves more affordable than traditional camera networks. The system also offers encryption, which is essential for security. Also, modern IP surveillance cameras can operate without additional power, since they can get power over an Ethernet connection.

Of course, IP cameras do have a few disadvantages, as well: a single camera may be more costly. The cameras require high network bandwidth. Also, a tech will need to set up the camera with the appropriate settings, including the IP address, the router setting and so forth.

Close Circuit Television

Analog closed circuit television transmits a signal to a specific place. It uses broadcast television formats, but the signal is not openly transmitted. This kind of equipment may be used to observe certain parts of inaccessible industrial plants, for example. Or, it can be used for surveillance or security outside of any type of business.

In the 1970s in the UK, several experiments used cameras for surveillance, and these encouraged an overall increase in these methods. Today, in the UK, most town centers use surveillance cameras for the sake of public safety. Retail centers use cameras, too, and they may also be used for traffic monitoring.

In the United States, people have been more opposed to public cameras. However, IP surveillance is a form of home security, which began to increase in popularity in the early 2000's. In Latin America, cameras also grew in popularity during that time, in part due to the increase of property crime.

Wireless Security Cameras

There are several types of wireless security cameras, including analog and digital wireless cameras. Analog wireless transmits signals using radio frequencies. Typically, it can reach around 300 feet in open space, but walls and furniture will reduce the range. Analog wireless comes in multiple frequency, and cameras use the same frequency as microwaves, cordless phones household routers and video game controllers.

As a result, home devices often interfere with analog wireless security cameras. Also, the signal is not secure, as neighbors can pick up on the transmission. Furthermore, the image quality of an analog wireless camera is relatively poor. On the other hand, analog wireless cameras are relatively affordable.

Digital wireless cameras are more expensive, but they offer a number of advantages. Digital wireless cameras, unlike the analog ones, are relatively secure. Neighbors can't pick up the signal. Also, they offer a wider signal range than analog cameras. That being said, walls and so forth do interfere with the signal.

The lower the frequency number, the stronger the signal. So, a 900MHZ wireless security camera can go through walls. A 2.4GHZ security camera isn't as strong. As a result, the signal may fail. If you're purchasing a camera for your home, pay attention to the frequency. Certain frequencies can't go very far, and others are much cleaner and can go much farther.

Furthermore, with a digital wireless camera, it's possible to send commands and functions. In other words: it's possible to send a command signal to turn the lights on or off. Also, multiple receivers can connect to one recording device (like a security DVR, for example) with a wireless camera.

Wireless cameras, because they have no wires, are easy to install and convenient. They are also flexible, moveable, and, again, relatively affordable. If you're interested in installing an IP surveillance camera for your home security system, be sure to carefully research the different camera options available. Clearly identify your specific needs before choosing the appropriate camera.