The rapid development of the domestic economy in the past two years has continuously improved the people’s living standards, and people’s demand for safety has also been increasing after they have solved common food, clothing and housing needs. Just like this, the most important core components in security monitoring surveillance cameras are promising in the past few years. However, the majority of the purchase of surveillance cameras is still more as a security engineering business, then as a monitoring project, how to choose a cost-effective surveillance camera?
First, understand the demand
Nowadays, the use of surveillance cameras is becoming more and more widespread, and cameras such as financial systems and road systems are now required to be very demanding. It is necessary to be able to see the characteristics of human faces and the license plate numbers. Therefore, high-definition surveillance cameras are required in these high-demand applications, but general civil applications can only meet basic requirements. When choosing a surveillance camera, you need to select the right camera based on the monitoring needs.
Second, understand the product
At present, the entire surveillance camera market is generally used to call 480-line or higher cameras as high-definition cameras. However, the CCD and 480-line surveillance cameras used in 500-line surveillance cameras on the market are basically the same. The difference is that DSP is different. The newly developed 15-16 bit (bit) video digital processing chip like Shenzhen Division Technology Co., Ltd. has stronger data processing capability and faster image than the Sony 10-bit chip of the 480TVL camera on the market. Processing speed.
Third, index detection
For many people, the 480-line surveillance camera and the 500-line surveillance camera are difficult to distinguish from the naked eye. This time, special detection instruments are needed to detect the clarity, color reproduction, and noise of the camera. Ratio, low illumination, synchronization, color burst, subcarrier frequency and other technical indicators.
Fourth, functional
For a high-definition surveillance camera, not the picture quality is clear, the resolution of 540TVL is finished, there are many things, in addition to these also need to have some with wide dynamic, automatic white balance, image sharpness adjustment, super digital Noise reduction (signal to noise ratio), intelligent digital automatic metering compensation and other functions.
Five, operation settings
The current HD camera operation settings are mainly adjusted through menus and dialing. Cameras with menus need to pay attention to whether menu functions are rich, easy to adjust, and whether they can meet different complex monitoring environments. The Chinese menu is easier to debug than the English menu. At present, there are standard menus for Divida surveillance cameras such as daytime, day and night, night KTV entertainment venues, and custom mode. You only need to select one mode to easily respond to a variety of complex environmental needs, quickly and easily.
Six, data interface
In the actual work process, the surveillance camera may be damaged by the outside world or the machine is naturally damaged. Therefore, when purchasing a surveillance camera, it is necessary to observe whether its interface is diversified, whether it has an alarm interface, an audio interface, and an RS-485 interface. Wait.
Seven, the voltage range is wide enough
Before chatting with guests in remote mountains, they mentioned that the camera was burned. What are the reasons? Later, we investigated and found that it was caused by voltage instability. In response to this problem, Division has developed a wide-voltage surveillance camera that can work normally during 9V and 16V, greatly prolonging the service life of the camera.
Eight, installation and debugging
The installation and debugging methods of HD video cameras and ordinary video cameras are basically the same, but we must pay attention to the lens selection, because the quality of the lens is not good, or the matching is not good, which will affect the sharpness of the screen to a great extent. For example, the size of the lens, and whether it matches the surveillance camera must be considered. In addition, the back focal plane of the lens must be adjusted. The front glass of the protective cover must be made of good quality optical glass, which will affect the sharpness.
Nine, supporting products
For a whole set of surveillance systems, the camera is just a part of it, and there are more to be used with cables, arrays, hard disk recorders, video servers, various video encoders, monitors, etc. If the monitor is not good No matter how good the monitoring equipment is, the perfect picture quality will not be obtained.
Tenth, technical support
Finally, when purchasing a product, it is necessary to communicate with the monitoring camera manufacturer in advance and ask to remove the actual performance and technical parameters of the product, and also depends on whether this manufacturer has a strong technical team and marketing support platform, and future after-sales service. , Is it possible to get technical support immediately after a failure, and whether the product can be quickly repaired and returned to the factory?
First, understand the demand
Nowadays, the use of surveillance cameras is becoming more and more widespread, and cameras such as financial systems and road systems are now required to be very demanding. It is necessary to be able to see the characteristics of human faces and the license plate numbers. Therefore, high-definition surveillance cameras are required in these high-demand applications, but general civil applications can only meet basic requirements. When choosing a surveillance camera, you need to select the right camera based on the monitoring needs.
Second, understand the product
At present, the entire surveillance camera market is generally used to call 480-line or higher cameras as high-definition cameras. However, the CCD and 480-line surveillance cameras used in 500-line surveillance cameras on the market are basically the same. The difference is that DSP is different. The newly developed 15-16 bit (bit) video digital processing chip like Shenzhen Division Technology Co., Ltd. has stronger data processing capability and faster image than the Sony 10-bit chip of the 480TVL camera on the market. Processing speed.
Third, index detection
For many people, the 480-line surveillance camera and the 500-line surveillance camera are difficult to distinguish from the naked eye. This time, special detection instruments are needed to detect the clarity, color reproduction, and noise of the camera. Ratio, low illumination, synchronization, color burst, subcarrier frequency and other technical indicators.
Fourth, functional
For a high-definition surveillance camera, not the picture quality is clear, the resolution of 540TVL is finished, there are many things, in addition to these also need to have some with wide dynamic, automatic white balance, image sharpness adjustment, super digital Noise reduction (signal to noise ratio), intelligent digital automatic metering compensation and other functions.
Five, operation settings
The current HD camera operation settings are mainly adjusted through menus and dialing. Cameras with menus need to pay attention to whether menu functions are rich, easy to adjust, and whether they can meet different complex monitoring environments. The Chinese menu is easier to debug than the English menu. At present, there are standard menus for Divida surveillance cameras such as daytime, day and night, night KTV entertainment venues, and custom mode. You only need to select one mode to easily respond to a variety of complex environmental needs, quickly and easily.
Six, data interface
In the actual work process, the surveillance camera may be damaged by the outside world or the machine is naturally damaged. Therefore, when purchasing a surveillance camera, it is necessary to observe whether its interface is diversified, whether it has an alarm interface, an audio interface, and an RS-485 interface. Wait.
Seven, the voltage range is wide enough
Before chatting with guests in remote mountains, they mentioned that the camera was burned. What are the reasons? Later, we investigated and found that it was caused by voltage instability. In response to this problem, Division has developed a wide-voltage surveillance camera that can work normally during 9V and 16V, greatly prolonging the service life of the camera.
Eight, installation and debugging
The installation and debugging methods of HD video cameras and ordinary video cameras are basically the same, but we must pay attention to the lens selection, because the quality of the lens is not good, or the matching is not good, which will affect the sharpness of the screen to a great extent. For example, the size of the lens, and whether it matches the surveillance camera must be considered. In addition, the back focal plane of the lens must be adjusted. The front glass of the protective cover must be made of good quality optical glass, which will affect the sharpness.
Nine, supporting products
For a whole set of surveillance systems, the camera is just a part of it, and there are more to be used with cables, arrays, hard disk recorders, video servers, various video encoders, monitors, etc. If the monitor is not good No matter how good the monitoring equipment is, the perfect picture quality will not be obtained.
Tenth, technical support
Finally, when purchasing a product, it is necessary to communicate with the monitoring camera manufacturer in advance and ask to remove the actual performance and technical parameters of the product, and also depends on whether this manufacturer has a strong technical team and marketing support platform, and future after-sales service. , Is it possible to get technical support immediately after a failure, and whether the product can be quickly repaired and returned to the factory?
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