With the development of science and technology and the progress of society, electronic camera technology has been widely used in commercial, civil, security, and other fields. It can be said that in the modern human society, we can be described as "a close-knit line of sight." We have camera lenses to monitor every move. Then, how much do we know about the cameras that we have "closely touched" with us all the time? Next, let's walk into the camera world.
The ordinary camera we are talking about here mainly refers to the camera used for web chat, and the surveillance camera mainly refers to the security camera that specializes in video surveillance. What is the difference between the two? The main differences between analog surveillance cameras and ordinary cameras are different. First, the general camera is mainly used for photography and other activities, corresponding to daily life. The surveillance camera is mainly used for security inspection, real-time monitoring, investigation and evidence collection and a series of security activities. Second, surveillance cameras are all remote wireless controls, while ordinary cameras are not.
Functional differences
The directionality of the main role of the general camera is clear, and it is generally performed under the circumstances of the other party's knowledge. Surveillance cameras are mainly suitable for real-time monitoring, and are generally conducted without the knowledge or semi-information of the subject.
Surveillance camera configuration differences
In order to meet security needs, surveillance cameras usually have higher pixel and resolution than ordinary cameras, and some products have anti-glare, anti-vibration, and night vision capabilities. At the same time, the biggest advantage of surveillance cameras is that they can install more software in the background for security needs. Such as face recognition, automatic tracking, filtering system, video storage compression. In short, because of special needs, surveillance cameras must be better than ordinary cameras in all aspects of configuration.
The difference in the effect of ordinary camera use
The biggest difference between a surveillance camera and an ordinary camera is the difference in use effect. Surveillance cameras need to be remotely controlled in order to deal with security, and the targets are continuously monitored for a long time. At the beginning of the design, it decided that its environmental adaptability was higher than that of a normal camera. The lens on the surveillance camera is a kind of semiconductor imaging device, so it has the advantages of high sensitivity, strong light resistance, small distortion, small size, long life, and anti-vibration. In surveillance camera security systems, image generation is currently mainly from CCD and CMOS. The main difference between CCD and CMOS in manufacturing is that CCD is integrated in semiconductor single crystal materials, and CMOS is integrated in metal oxides. On semiconductor materials, there is no essential difference in working principle.
Surveillance camera sensitivity level
Only a few manufacturers such as Sony and Panasonic have mastered this technology. Moreover, the CCD manufacturing process is relatively complicated, and the price of cameras using CCDs will be relatively expensive. In fact, after technological transformation, the gap between the actual effects of CCD and CMOS has been reduced a lot. Moreover, the manufacturing cost and power consumption of CMOS are lower than those of CCD, so many camera manufacturers use CMOS photosensitive elements.
Imaging: In the same pixel under the CCD imaging permeability, sharpness is very good, color reproduction, exposure can guarantee the basic accuracy. The CMOS products are often transparent, the physical color reproduction ability is weak, exposure is not very good, due to their physical characteristics, CMOS imaging quality and CCD still have a certain distance. However, due to its low price and high degree of integration, it has been widely used in the field of surveillance cameras.
In addition, the monitoring distance, angle, and anti-jamming capability of surveillance cameras are higher than those of ordinary cameras. Customers can customize the camera with different observation angles and different observation distances according to the requirements. The monitoring can be done regardless of the wind and rain. And the surveillance camera has a night vision function and can perform monitoring work at night. In addition, there are two monitoring modes, black and white and color, which can be monitored at night in the absence of lighting or with black and white monitoring of moving objects.
In accordance with the sensitivity of surveillance cameras (ie, the impact of light intensity on monitoring) can be divided into:
(1) Ordinary type: The required illumination for normal work is 1~3Lux
2) Moonlight type: The illuminance required for normal operation is about 0.1 Lux (3) Starlight type: The illuminance required for normal operation is 0.01Lux or less (4) Infrared illumination type: In principle, infrared illumination can be used for imaging with zero illumination.
According to different surveillance cameras with different sensitivity to be monitored, customers can choose surveillance cameras according to their own needs.
In contrast, ordinary cameras are not as good as surveillance cameras in terms of distance, effect, noise immunity and night vision.
The ordinary camera we are talking about here mainly refers to the camera used for web chat, and the surveillance camera mainly refers to the security camera that specializes in video surveillance. What is the difference between the two? The main differences between analog surveillance cameras and ordinary cameras are different. First, the general camera is mainly used for photography and other activities, corresponding to daily life. The surveillance camera is mainly used for security inspection, real-time monitoring, investigation and evidence collection and a series of security activities. Second, surveillance cameras are all remote wireless controls, while ordinary cameras are not.
Functional differences
The directionality of the main role of the general camera is clear, and it is generally performed under the circumstances of the other party's knowledge. Surveillance cameras are mainly suitable for real-time monitoring, and are generally conducted without the knowledge or semi-information of the subject.
Surveillance camera configuration differences
In order to meet security needs, surveillance cameras usually have higher pixel and resolution than ordinary cameras, and some products have anti-glare, anti-vibration, and night vision capabilities. At the same time, the biggest advantage of surveillance cameras is that they can install more software in the background for security needs. Such as face recognition, automatic tracking, filtering system, video storage compression. In short, because of special needs, surveillance cameras must be better than ordinary cameras in all aspects of configuration.
The difference in the effect of ordinary camera use
The biggest difference between a surveillance camera and an ordinary camera is the difference in use effect. Surveillance cameras need to be remotely controlled in order to deal with security, and the targets are continuously monitored for a long time. At the beginning of the design, it decided that its environmental adaptability was higher than that of a normal camera. The lens on the surveillance camera is a kind of semiconductor imaging device, so it has the advantages of high sensitivity, strong light resistance, small distortion, small size, long life, and anti-vibration. In surveillance camera security systems, image generation is currently mainly from CCD and CMOS. The main difference between CCD and CMOS in manufacturing is that CCD is integrated in semiconductor single crystal materials, and CMOS is integrated in metal oxides. On semiconductor materials, there is no essential difference in working principle.
Surveillance camera sensitivity level
Only a few manufacturers such as Sony and Panasonic have mastered this technology. Moreover, the CCD manufacturing process is relatively complicated, and the price of cameras using CCDs will be relatively expensive. In fact, after technological transformation, the gap between the actual effects of CCD and CMOS has been reduced a lot. Moreover, the manufacturing cost and power consumption of CMOS are lower than those of CCD, so many camera manufacturers use CMOS photosensitive elements.
Imaging: In the same pixel under the CCD imaging permeability, sharpness is very good, color reproduction, exposure can guarantee the basic accuracy. The CMOS products are often transparent, the physical color reproduction ability is weak, exposure is not very good, due to their physical characteristics, CMOS imaging quality and CCD still have a certain distance. However, due to its low price and high degree of integration, it has been widely used in the field of surveillance cameras.
In addition, the monitoring distance, angle, and anti-jamming capability of surveillance cameras are higher than those of ordinary cameras. Customers can customize the camera with different observation angles and different observation distances according to the requirements. The monitoring can be done regardless of the wind and rain. And the surveillance camera has a night vision function and can perform monitoring work at night. In addition, there are two monitoring modes, black and white and color, which can be monitored at night in the absence of lighting or with black and white monitoring of moving objects.
In accordance with the sensitivity of surveillance cameras (ie, the impact of light intensity on monitoring) can be divided into:
(1) Ordinary type: The required illumination for normal work is 1~3Lux
2) Moonlight type: The illuminance required for normal operation is about 0.1 Lux (3) Starlight type: The illuminance required for normal operation is 0.01Lux or less (4) Infrared illumination type: In principle, infrared illumination can be used for imaging with zero illumination.
According to different surveillance cameras with different sensitivity to be monitored, customers can choose surveillance cameras according to their own needs.
In contrast, ordinary cameras are not as good as surveillance cameras in terms of distance, effect, noise immunity and night vision.
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