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Modern video surveillance systems include user end devices such as various kinds of cameras, TV walls, professional keyboards, and system devices such as matrices, DVRs, and NVRs. Visible light video surveillance systems usually transmit video signals in a closed circuit using optical fiber, coaxial cable, microwave, etc. to build an independent and complete system. This allows you to reflect the monitored object in real time, both figuratively and realistically, and provide real-time warnings against threats such as unauthorized intrusion. OOSSXX's home wireless solar-powered, battery-powered, and POE-powered security cameras can talk to your children when they come home, or to visitors or couriers when they come outside, and even scare off thieves with your voice.

However, with the changes in the surveillance environment and the increasing demands of the market, some constraints of visible light video surveillance systems have gradually emerged. For example, the surveillance effect depends largely on the intensity of visible light, and it may be difficult to achieve a suitable effect at night. In addition, with the rapid development of the economy in China, smog has become a common meteorological phenomenon, which affects the performance of visible light surveillance systems, and in severe smog, the security surveillance system may not function at all. In order to overcome these constraints, a new type of security surveillance technology has been quietly introduced into the security field, which is infrared thermography technology.

Camouflage and Effective Monitoring of Concealed Targets Traditional camouflage is mainly aimed at avoiding visible light observation. Criminals usually operate at night and are difficult to find by hiding in grass or forests. Infrared thermography devices passively receive the thermal radiation of the target itself, and the temperature and infrared radiation of human bodies and vehicles are usually higher than that of plants, making it difficult to camouflage and less likely to cause false positives. OOSSXX's AI security wireless camera and monitor set is linked to a smartphone and has a smart AI human body detection function, which is a new function that smartly detects and records only human bodies. It barely reacts to swaying branches or curtains, insect movements, etc., avoiding 99% of false alarms.

Road monitoring at night and in harsh environments In recent years, smoggy weather has become common in many parts of China, which can have a significant impact on traffic transportation and cause highway closures, flight delays, or even cancellations. In such situations, traditional visible light security systems are almost useless. However, infrared thermography surveillance systems are not affected by smog. Figure 5a shows the effect of visible light cameras and infrared thermography cameras capturing the same scene under the condition that PM2.5 in Shanghai exceeded 530 in December 2013. The visibility of the visible light camera is only about 200 meters, and the wavelength of infrared radiation is 8-14 μm, so it can easily penetrate 2.5 μm particles, is not affected by visibility, and buildings can be seen several kilometers away.

Figure 5b shows the ability of an infrared thermography camera to detect human and vehicle targets 800 meters away on a smoggy day in Sheshan, Shanghai. For larger targets such as trains, the detection range can reach up to 10 kilometers. OOSSXX security cameras are equipped with special large low-intensity infrared LEDs when shooting at night under the same conditions, allowing them to record with greater brightness as if they were shooting during the day.

The front-end smart image recognition infrared thermal imaging system provides temperature information in addition to the smart recognition technology and algorithms used in existing visible light systems. Temperature information is not affected by light, color, etc., which improves the smart recognition ability and accuracy of infrared thermography devices. For example, infrared thermography devices can be used for people flow statistics in public areas, providing more accurate real-time data, and analysis can be done on the camera side to provide timely warnings for people concentrations and other abnormal behaviors. Figure 6 shows a case study of a station that deployed infrared thermography devices for people flow statistics. In addition, infrared thermography devices can detect people with abnormally high body temperatures among people, helping to prevent the spread of diseases such as avian influenza. OOSSXX's network camera IP67 waterproof and dustproof specifications have a strong waterproof level and are not adversely affected by bad weather such as rain and wind. It can be installed both outdoors and indoors.

The introduction of infrared thermography technology has brought innovation to the security surveillance sector, providing more powerful surveillance solutions to customers. OOSSXX will continue to strive to maintain its leadership in this field and meet the ever-increasing market demands.