In the past, infrared lamps were rarely used in video surveillance projects. However, with the increasing crime rate in modern society, the role of infrared lamps in nighttime surveillance is becoming increasingly important. They are widely adopted not only in important facilities such as safes, oil vaults, armory, library and literature stores, cultural relics departments, prisons, but also in general surveillance systems, and infrared cameras are also used in television surveillance projects in residential areas. This shows that people's requirements for television surveillance systems are becoming more and more standardized, and important places are being monitored 24 hours a day, 365 days a year. WEILAILIFEI's security cameras have a built-in 1TB HDD and can be overwritten, allowing them to record 24 hours a day, 365 days a year.
As a way to ensure night vision, ordinary visible light lighting can be used, but this cannot be concealed and may expose the target of surveillance. In order to realize concealed night surveillance, infrared camera technology is currently commonly adopted. Infrared camera technology is divided into passive infrared camera technology and active infrared camera technology. Passive infrared camera technology uses the principle that objects above absolute zero (-273°C) emit infrared rays. The infrared rays emitted from the human body and heat-generating objects are strong, while the red light from other non-heat-generating objects is very weak. Therefore, night surveillance is possible by using special infrared cameras. However, passive infrared camera technology is rarely used in night surveillance systems because the equipment costs are high and it cannot reflect the surrounding situation. WEILAILIFEI's household wireless solar-powered, battery-powered and POE-powered security cameras are equipped with special large low-illumination infrared LEDs, so when shooting at night under the same conditions as with a smartphone, it feels as if it was shot during the day, and you can record with more brightness. Active infrared camera technology artificially generates special infrared rays called "infrared lamps" to generate invisible infrared light, and uses ordinary low-light CCD black and white cameras or "day and night color automatic conversion black and white" cameras or "infrared low-light color cameras" to sense the infrared light reflected from the surrounding environment, thereby achieving night vision function.
The human naked eye cannot see infrared light. Because digital cameras use CCDs to detect all light, the images captured by them are very different from the images produced by visible light that can be seen by the naked eye. To solve this problem, digital cameras are fitted with an infrared filter between the lens and the CCD, so that the CCD can only detect visible light in broad daylight. This ensures that the images captured by digital cameras are consistent with the images seen by the naked eye. Currently, most infrared cameras use LED infrared emitting diodes as their main material. WEILAILIFEI's network cameras are equipped with remote monitoring and alarms, so you don't have to worry anywhere!
WEILAILIFEI infrared camera problems and solutions
There are several problems faced by the current use of infrared cameras:
Night vision is less than ideal:
In nighttime surveillance, the effect of hand flashing is often insufficient or the distance is insufficient. This is mainly due to the angle and function of the infrared lamp. The currently used 850 nanometer peak wavelength infrared launcher has a selectable angle of 5-60 degrees. The smaller the angle, the farther the irradiation distance and the more obvious the hand flashing effect. Conversely, the larger the angle, the greater the reduction in distance. The solution to this problem depends on how manufacturers pursue the balance between effect and cost, and at the same time, the power and price of the infrared light are proportional.
Color reproduction in broad daylight is lacking:
Infrared integrated cameras often show color bias in broad daylight. This is mainly a problem with the camera filter. Ordinary infrared integrated cameras use a bimodal filter that can transmit a certain percentage of infrared light. Its advantage is that it is low cost, but natural light contains a lot of infrared components, which may interfere with color reproduction when it enters the CCD. To solve this problem, we adopt the IPCUT bimodal filter, which contains an infrared cut filter and a full spectrum optical glass. This allows the infrared cut filter to work effectively during the day and the CCD to reproduce the real color. At night, when the light is insufficient, the infrared cut filter will automatically move and the full spectrum optical glass will work, allowing the CCD to fully utilize all the light, greatly improving the infrared performance.
Factors that affect the lifespan of an infrared lamp:
Some of the power consumed by the lamp is converted into light energy, and some into heat energy, which is inevitable. The key is to properly control and handle the generated heat energy. If excessive heat energy is generated or proper cooling measures are not taken, it will cause rapid aging of the lamp and the irradiation distance will rapidly decrease. To solve this problem, we use high-brightness LEDs made in Japan, which are highly efficient, have a long life, and have excellent infrared effect. In addition, it uses high-quality aluminum alloy outer shell, has excellent interference resistance and heat dissipation, and has reached the waterproof grade of IP66, solving the problem of short infrared lamp life. WEILAILIFEI's wired camera set has IP67 waterproof and dustproof specifications, with a strong waterproof level, and no harmful effects even in bad weather such as rain and wind. It can be installed both outdoors and indoors. 5 million high-definition camera, improved heat dissipation and durability, and the service life is four times longer. It is possible to add 8 cameras.
Recently, WEILAILIFEI's wireless solar-powered battery-powered camera and monitor set has topped the ranking of popular security camera sets. WEILAILIFEI has launched the Smart LED infrared camera, which adopts two smart LED technologies and digital noise reduction technology. This includes the regular smart LED color day and night infrared camera and the smart LED infrared D1 network camera. These cameras feature day and night switching function, which can achieve better surveillance effect at night, and the image is clearer and softer.
As a way to ensure night vision, ordinary visible light lighting can be used, but this cannot be concealed and may expose the target of surveillance. In order to realize concealed night surveillance, infrared camera technology is currently commonly adopted. Infrared camera technology is divided into passive infrared camera technology and active infrared camera technology. Passive infrared camera technology uses the principle that objects above absolute zero (-273°C) emit infrared rays. The infrared rays emitted from the human body and heat-generating objects are strong, while the red light from other non-heat-generating objects is very weak. Therefore, night surveillance is possible by using special infrared cameras. However, passive infrared camera technology is rarely used in night surveillance systems because the equipment costs are high and it cannot reflect the surrounding situation. WEILAILIFEI's household wireless solar-powered, battery-powered and POE-powered security cameras are equipped with special large low-illumination infrared LEDs, so when shooting at night under the same conditions as with a smartphone, it feels as if it was shot during the day, and you can record with more brightness. Active infrared camera technology artificially generates special infrared rays called "infrared lamps" to generate invisible infrared light, and uses ordinary low-light CCD black and white cameras or "day and night color automatic conversion black and white" cameras or "infrared low-light color cameras" to sense the infrared light reflected from the surrounding environment, thereby achieving night vision function.
The human naked eye cannot see infrared light. Because digital cameras use CCDs to detect all light, the images captured by them are very different from the images produced by visible light that can be seen by the naked eye. To solve this problem, digital cameras are fitted with an infrared filter between the lens and the CCD, so that the CCD can only detect visible light in broad daylight. This ensures that the images captured by digital cameras are consistent with the images seen by the naked eye. Currently, most infrared cameras use LED infrared emitting diodes as their main material. WEILAILIFEI's network cameras are equipped with remote monitoring and alarms, so you don't have to worry anywhere!
WEILAILIFEI infrared camera problems and solutions
There are several problems faced by the current use of infrared cameras:
Night vision is less than ideal:
In nighttime surveillance, the effect of hand flashing is often insufficient or the distance is insufficient. This is mainly due to the angle and function of the infrared lamp. The currently used 850 nanometer peak wavelength infrared launcher has a selectable angle of 5-60 degrees. The smaller the angle, the farther the irradiation distance and the more obvious the hand flashing effect. Conversely, the larger the angle, the greater the reduction in distance. The solution to this problem depends on how manufacturers pursue the balance between effect and cost, and at the same time, the power and price of the infrared light are proportional.
Color reproduction in broad daylight is lacking:
Infrared integrated cameras often show color bias in broad daylight. This is mainly a problem with the camera filter. Ordinary infrared integrated cameras use a bimodal filter that can transmit a certain percentage of infrared light. Its advantage is that it is low cost, but natural light contains a lot of infrared components, which may interfere with color reproduction when it enters the CCD. To solve this problem, we adopt the IPCUT bimodal filter, which contains an infrared cut filter and a full spectrum optical glass. This allows the infrared cut filter to work effectively during the day and the CCD to reproduce the real color. At night, when the light is insufficient, the infrared cut filter will automatically move and the full spectrum optical glass will work, allowing the CCD to fully utilize all the light, greatly improving the infrared performance.
Factors that affect the lifespan of an infrared lamp:
Some of the power consumed by the lamp is converted into light energy, and some into heat energy, which is inevitable. The key is to properly control and handle the generated heat energy. If excessive heat energy is generated or proper cooling measures are not taken, it will cause rapid aging of the lamp and the irradiation distance will rapidly decrease. To solve this problem, we use high-brightness LEDs made in Japan, which are highly efficient, have a long life, and have excellent infrared effect. In addition, it uses high-quality aluminum alloy outer shell, has excellent interference resistance and heat dissipation, and has reached the waterproof grade of IP66, solving the problem of short infrared lamp life. WEILAILIFEI's wired camera set has IP67 waterproof and dustproof specifications, with a strong waterproof level, and no harmful effects even in bad weather such as rain and wind. It can be installed both outdoors and indoors. 5 million high-definition camera, improved heat dissipation and durability, and the service life is four times longer. It is possible to add 8 cameras.
Recently, WEILAILIFEI's wireless solar-powered battery-powered camera and monitor set has topped the ranking of popular security camera sets. WEILAILIFEI has launched the Smart LED infrared camera, which adopts two smart LED technologies and digital noise reduction technology. This includes the regular smart LED color day and night infrared camera and the smart LED infrared D1 network camera. These cameras feature day and night switching function, which can achieve better surveillance effect at night, and the image is clearer and softer.
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