CCTV

CCTV camera CCTV

CCTV system (Closed-circuit television).

1. CCTV system (Closed-circuit television).

-The device that needs to be used in CCTV systems Closed-circuit television.

1.1 camera, closed circuit television (CCTV Camera).

1.2 lens (CCTV Lenses).

1.3 DVR (DVR Video Recorder).

1.4 the line (Transmission line).

1.1 camera, closed circuit television (CCTV Camera).

-CCTV cameras (CCTV) Closed-circuit television stands, which will serve to get the image to appear, and converted to a signal and then sends the signal to a point in the point to point style currently has two characteristics:

1.1.1 fixed installation or mounted with cameras (Fixed Camera)

Refer to the camera will be mounted on an adjustable camera or point occupied islands. Will not be able to move or change the direction of rotation.

This kind of camera which can be sorted out.

-Standard Standard camera camera.

The infrared camera has Infrared-camera standards.

-Dome Camera Dome camera

There are Infrared IR dome camera-Dome camera.

1.1.2 rotation direction can be adjusted (Moving Camera)

1.2 lens (CCTV Lenses).

Lenses (CCTV Lenses). The standard lens is 4 mm size is 4.6 mm, 8 mm and 12 mm.,.,., can be selected according to the characteristics of use.

1.3 DVR (DVR Video Recorder).

Video Recorder (DVR), the main work is to bring images from CCTV cameras and processing, and then save the image in memory to the hard disk, Hard disk.

1.4 the line (Transmission line).

How to select cable for CCTV camera Signal cable for CCTV camera is important enough to the quality of CCTV. If we choose a lower quality signal cables may cause image quality that is not as sharp as it should be, in which each type of cable, there will be limitations or qualifications? Copper seafloor cable serves to pick up the signal and covered with different types of insulation material, there may be a Shield or not and is covered with plastic to prevent tearing. RG6 coax cable is a cable with impedance 75 ohms is that there is a loss of the signal is less qualified to take on the job. Bring the TV signal and the CCTV signals.

Caution in choosing a CCTV system.

-CCTV cameras should have a resolution of images suitable for use as well as the capabilities of the blades! If you choose to use a low-quality camera, too. When it happens, will not be able to distinguish the intruders because the blurred images.

-The installation must have the same number of cameras that fit the area. If you use too little camera, it covers an area of, and may be too remote to identify individuals that invasion.

-CCTV system is a system for watching and monitoring after the incident, when it is not the system that prevent intrusion to achieve effective results should be shared with other Security systems to achieve real security.

-IP Camera (Internet Protocol Camera)

CCTV camera that combines the capabilities of the computer and the camera. IP camera will capture the situation that occurred and passed on the IP network, and allowed the user to see the event from a distance, and can store photos, events, including the control, or set the camera through the IP system.

IP Camera does not need to be plugged into the computer all the time (which is different from the webcam because it needs to be plugged into a computer) IP Camera. You can run by itself and can be removed to install the system wherever there is a Network that is more than the camera IP Camera has an additional function to work much more.

-Motion sensor function. If you find that there is something wrong it will shoot stored or alarm or send a mail to the administrator.

-Listen to the audio version, the camera IP Camera also has the ability to transmit images and sound at the same time (some models do not Support).

-Input and Output functions, which is considered a utility function, the user can apply.

-Serial Port function for users who want to use the camera to Pan/Tilt control for.

The benefits and importance of closed-circuit television or CCTV systems.

Useful for watching and collect evidence of illegal behavior in the area where we want to take care of.

It may be an area where we had some access to voice and charged with trespassing, which we do not expect. CCTV system can be made responsible for care, rather than labor, and can work 24 hours a day.

Used to monitor employee behavior.

CCTV cameras can be useful, particularly in factories. For business owners, managers or security administrator within the factory because they will be able to assist you throughout the administration. Especially to see the behavior of employees in factories, or your own company.

A brief history of CCTV systems.

CCTV this hearing ear very well heavy current that comes from this will hear hear on the TV news came from reading through newspapers and other word klong uangchon off or CCTV stands for "Closed Circuit Television", also called "Video Surveillance System" is a system for recording images from camera or security system, which is used to illuminate the event corresponds to the administrative. Various situations do occur, CCTV camera systems (CCTV) occurs the first time that Germany in 1942, and CCTV cameras (CCTV) is also considered to be necessary for places such as schools, hospitals, Office building measuring inbound or around every other past surveillance cameras (CCTV) is to catch illegal surveillance, according to illuminate care. But this role of CCTV cameras (CCTV) is greater than the above. We can titklongwongchon close (CCTV), CCTV cameras (CCTV) work in our place, and we can also see the work request.

How to Use CCTV cameras.

What type of CCTV cameras should be used.

Our eyes compared with CCTV CCTV system which should be used, in each area.

2. the main area that we should be able to install CCTV cameras:

1. areas where people or vehicles to pass through, for example, or the entrance road. To install the camera in this position will help to reduce costs in order to save those out.

2. the space's interest, which is to capture something of the anyway where you want security, such as personal a 1991 parking spots as cashier.

When you decide whether to install a camera in the area? This time, it is time to choose CCTV cameras to be installed, and then the main feature of the camera, which is to consider four factors:

1. Fixed camera with PTZ camera: camera holding Fixed-wheel, which is the only place where captured. There is no PTZ camera or mobile camera that can move in kwatklong tilt or zoom. Doiklongwongchon off the most commonly used, it is a Fixed part the camera PTZ is often used in cases that want to see more, there's a need to control, in conjunction with the display, and there are important reasons to use fixed camera than it is about the price of a fixed camera, PTZ camera, cheaper 5-8 times.

Color camera with infrared camera 2: CCTV system at the current time to be shown in black and white, as would have occurred in the case of low brightness only, such as in the middle of the night, in which a camera, infrared images are black and white, which necessarily must have increased the intensity of the infrared LED. Born in the dark. In General, expensive cameras, infrared cameras, the price is about three times the General color, but in the middle of the day or an area that has adequate brightness color camera seems to be used more than.

3. camera with Megapixel camera resolution with common: a comparison in this article probably is the same as that originally applied to all users, the camera has a standard resolution of the same. But at present there is a camera that has more resolution as an option to the user. While TV has the highest contrast MP but CCTV cameras have a resolution of up to 16 MP in 2008 using the camera's Megapixel camera just% used all but is currently expanding rapidly increasing.

4. the IP camera with Analog Cameras: the trend to use CCTV cameras currently has changed from Analog to IP cameras all the time. While the signal from the camera is common to digital to display and save images on the computer. There is only one IP camera to a digital signal directly, and you can use the camera's Megapixel resolution with a camera, IP camera.