CCTV stands for Closed Circuit Television, is a modern technology that is a set of digital video cameras which function is to monitor certain conditions. This CCTV camera can connect the signal to the monitor screen where we can see the location being monitored.
CCTV itself has been around since 1942 and Siemens AG produced it. Walter Brunch, an engineer from Germany is someone who first discovered this CCTV camera technology.
This device is usually used as a security tool in a certain place. Although when it was first discovered, CCTV has a very low resolution, but over time, CCTV has improved for a better system.
The times have also brought new technology to CCTV, until various types appear. The following are types of CCTV along with their advantages and disadvantages:
1. Analog CCTV Camera
Analog CCTV is a CCTV camera that uses coaxial cable as a medium for transmitting images with a resolution of 700 to 900 L. Analog CCTV is a CCTV camera that is quite old with a very cheap price.
The advantage of analog CCTV cameras is that analog CCTV installations are very easy to learn and not complicated. There are so many versions of analog CCTV cameras that you are free to choose from cameras, DVRs, and other equipment.
Not only that, the price is also very cheap compared to other CCTV cameras. Equipment configuration, easy settings, and sharper image quality, video propagates further, object movement looks more real, and recording media has a lower price.
The disadvantages of analog CCTV cameras are that the cable installation is much heavier, the price of coaxial cable is more expensive, requires a lot of cables for data, power and video. Analog CCTV cameras are also affected by interference and noise.
The equipment used is also more and you have to store a lot of VHS tapes too. This is the cause of the shortage of CCTV cameras because it will take up a lot of space and become inflexible.
2. IP CCTV Cameras
IP CCTV camera is a camera that uses a LAN cable or UTP cable to serve as a medium for introducing images. This technology is the third generation of cameras after the technology called Dahua, Hikvision, and more. IP CCTV is purely digital and can also use NAR and WIFI as recording devices.
The advantage of this IP CCTV camera is its resolution of 2 MP or more than 1080p. Even without using an NVR, IP CCTV cameras can still function independently. It supports POE which means it only uses one LAN cable.
The number of IP CCTV cameras can also still increase without the need to replace the old LAN. In terms of caballing systems, IP CCTV cameras will be simpler for large-scale POE use.
Although it has advantages, IP CCTV cameras also have disadvantages, such as they require knowledge of networking, basic electrical engineering and professional electrical installation skills. It also requires crimping pliers to attach cable connectors.
Requires brand compatibility between IP cameras and NVRs to work optimally. The quality of connectors, LAN cables, HUBs, has an influence on the level of stability.
3. Wireless CCTV Camera
Wireless CCTV camera is a camera that has IP without the need to use a cable. That’s what the word Wireless is about. This Wireless CCTV camera has a modern appearance and is suitable for purposes such surveillance stands.
This CCTV camera has a characteristic that is simple in terms of appearance. For the price itself, Wireless CCTV cameras have the same price as IP cameras and have a resolution that is already HP.
The advantage of Wireless CCTV cameras is that they are easy to place anywhere, including in hidden places, because this camera does not need to use cables in its operation. You can access the results of CCTV recordings online from home or from your office.
In addition, the advantage of this Wireless CCTV camera is that you can get special notifications to your cellphone instantly via SMS or e-mail messages when CCTV detects a movement of people or objects.
Although it has advantages that are quite satisfying, Wireless CCTV cameras also have disadvantages, which the price is quite expensive. The resulting image quality is also included in the below average category. Setting the CCTV camera configuration is also quite difficult because you must have basic knowledge of experienced LANs.
4. HD CCTV Cameras
From the name alone, HD CCTV camera stands for High Definition CCTV camera. That is because this CCTV camera has the ability to capture images and videos with quality you don’t need to doubt anymore.
This camera is similar to an HD CCTV camera, which uses a coaxial cable as a medium to transmit images. The difference between the two CCTVs lies in the resolution, where the HD CCTV resolution has reached one to eight Mega Pixels.
HD CCTV cameras have the advantage of Colorvu in the form of a bright and clearer picture and video display even in dark conditions. Not only that, another advantage is Acusense, which means deep learning technology that is useful for increasing the level of accuracy in detecting an object.
Because these HD CCTV components are similar to analog CCTV cameras, of course this CCTV camera has the same striking drawback that it still uses cables in its use. The use of this cable is very inefficient because it can take up a lot of space.
5. Infrared or Night Vision CCTV Camera
Infrared CCTV cameras are the latest CCTV technology breakthroughs that have been widely used by the wider community. This type of CCTV can take pictures, especially in low light conditions such as dark conditions or at night.
The advantages of this Infrared CCTV camera are the flexibility of time in sending data without requiring a signal, using simple and easy tools in the process of sending data, and can also be sent from a cellphone without using additional costs.
While the drawback of this infrared CCTV camera is the data transfer that seems a little confusing because there are two infrared holes that are facing each other.
It’s quite dangerous for the eyes when it is exposed directly to this infrared camera. Sending data on Infrared CCTV cameras is also quite slower than using Bluetooth.
6. Dome CCTV Cameras
Dome CCTV camera is a CCTV camera that looks like a dome, which is why this camera is called a Dome CCTV camera.
Fix camera is the type of CCTV Dome camera that is most often encountered with the characteristic of one direction only. There is also a type of Dome CCTV camera that has the ability to rotate in all directions such as PTZ.
The advantage of Dome CCTV cameras is that they can be placed indoors or indoors and visible to the eye. This camera also focuses in one direction and has other features such as tilt, zoom, and pan so that it can record in a fairly wide area. This means that it is not only focused on one area.
Although it has many advantages, this Dome CCTV camera also has a disadvantage, that the camera range is not suitable when recording remotely.
However, this disadvantage suits to the function of the CCTV Dome camera which is dedicated to for indoors placement.
7. Bullet CCTV Cameras
Furthermore, the Bullet CCTV camera is a camera that is almost similar to the Dome CCTV camera. The difference is, this Bullet CCTV camera is placed outside the room and has a different shape from the Dome CCTV camera. The two CCTV cameras have no significant differences apart from the shape and placement.
The advantage of this Bullet CCTV camera is that it can be placed outdoors. These advantages are useful for monitoring suspicious activity such as theft. Uniquely, this CCTV camera is also water resistant.
Its recording range is also just right for remote recording. Not only that, this camera can also operate even at night or in low light conditions.
Similar to Dome CCTV cameras, this CCTV camera also has its own drawbacks, which is it does not have tilt, pan, and zoom features. So that the recording only focuses on one point. With these shortcomings, it can be concluded that this CCTV camera can only record images in a fixed area.
8. PTZ CCTV Cameras
Lastly, the PTZ CCTV camera or the abbreviation of Pan Tilt Zoom CCTV camera is a CCTV camera that is widely used in large areas such as fields, parking lots, airports, and other public places.
This type of PTZ CCTV camera is generally used in areas with wide enough monitoring to avoid theft activity in public places.
The advantages of this PTZ camera as the name implies, which can rotate in all directions automatically or manually controlled. This PTZ camera also has the ability to move in various directions and can enlarge images up to many times. Not only that, the price is also relatively cheap.
While the disadvantage of this CCTV camera is that it requires quite a lot of conductors so that the installation is fairly heavy. The price of multicore cable is also quite expensive. And its popularity began to decline and was replaced with a Dome type CCTV camera.
Those are the various types of CCTV cameras and their advantages and disadvantages. Are you interested in owning one of them?