Security cameras and things you should not ignore

What is a security camera?

A security camera, also known as a security surveillance camera (CCTV), is known as a recording device used to monitor the areas around the device. When detecting unusual signs, the surveillance camera will send a notification to the user, helping to prevent and handle dangerous situations in a timely manner.

Thanks to direct connection to the phone application, users can monitor all activities remotely through the camera. The surveillance camera will monitor the entire area for you 24/7 and has extremely high durability when used for a long time.

Structure of a security camera?

Most of all surveillance cameras, regardless of technology (Analog, AHD, HDTVI, HDCVI, IP, ...), whether they are wireless or wired security cameras, are basically made up of the following main parts:

• Lens: Used to observe objects at different distances, thanks to the ability to change the focal length.
• Focusing part: Helps the camera focus and produce clear, blur-free images/videos.
• Vertical shaft: Used to adjust the camera up and down.
• Rotation shaft: Similarly, it is used to adjust the camera's rotation angle, combined with a 360-degree rotation joint to rotate the base.
• Signal connection jack: Used to connect the camera to the signal transmission cable.
• Peripheral communication port: Used to extract images from the camera to the recorder.
• Protective shell: The outer layer is usually made of plastic or alloy, iron, etc. to protect the camera from scratches, avoid damage when colliding, helping to increase durability and safety.
• In addition to the optical zoom lens and peripheral communication port, the camera eye also has components used to connect together such as electronic circuits or information processing chips

What is the meaning of technical parameters on security cameras?

Each parameter on the security camera such as resolution, viewing angle, lens, etc. has a certain meaning and role as follows:

Resolution is the most concerned technical parameter when choosing to buy any type of security camera. Resolution plays an important role in determining the quality of the recorded image, is an index showing the sharpness of the camera, whether the details are clear or not. The unit of measurement of resolution is pixels determined by the CMOS sensor, showing the sharpness of the image transmitted by the camera.

In addition to resolution, the chipset (CMOS sensor) also plays an important role in the image quality of the camera. This is the part responsible for capturing images from the camera, through a filter to make the image as clear and realistic as possible.

Brightness (brightness) represents the light and dark tones of colors ranging from 0% - 100%. Depending on the day or night conditions, the brightness of a camera will be adjusted to suit the viewer's eyes.

Contrast (contrast) is the difference between the two colors black and white in the camera's recognition area to bring the most harmonious image

How to Choose a Security Camera?

To choose the right security camera, you need to consider the following factors:

• Usage needs

Purpose of use: What area do you need the camera to monitor? What is the purpose of use? (For example: monitoring homes, offices, shops, warehouses, etc.)

Necessary features: What features does the camera need such as motion detection, face recognition, email and phone alerts, etc.?

• Installation area

Installation location: Will the camera be installed indoors or outdoors?

Environmental conditions: Does the camera need to be able to withstand harsh weather conditions such as rain, sun, dust or not?

• Budget

Spending level: How much do you plan to spend on buying and installing the camera?

Choose a camera that fits your budget: There are many types of security cameras with different prices. You should choose a camera that fits your budget.

Reputable brand

Choose a reputable camera brand: There are many security camera brands on the market. You should choose a reputable brand with a good warranty policy.

• Some other notes

Resolution: The higher the resolution of the camera, the sharper the image.

Angle of view: The wider the angle of view of the camera, the more it will cover the area that needs to be monitored.

Night vision: A camera with good night vision will help you observe clearly in low light conditions.

Storage capacity: The camera needs to have enough storage capacity to store images and videos.