Integrated cameras are widely used in government projects, high-end high-rise buildings, shopping malls, schools, hotels, and hotel lobbies. They are also suitable for environments with strict requirements, such as hospital operating rooms, where dust-proof, low-temperature, and non-sparking explosion-proof features are essential. Over the years, integrated cameras have broken the monopoly of foreign brands like Sony, Panasonic, Samsung, and LG. As prices have dropped, more industry players have started to take notice. Companies such as Zhejiang Dahua, Aipu Vision, Wanjiaan, Onix, and Digital China have now mastered the core technology behind high-definition integrated cameras.
With the advancement of IP high-definition technology, the unique advantages of integrated cameras—superior to traditional models—have made them a new favorite in the surveillance market. Tiandi Weiye Wang Liang believes that although the high-definition integrated camera industry is still small and prices remain relatively high, the trend toward high-definition night vision and intelligent analysis features is growing. Features like multi-line alarms and motion detection are becoming more common. Therefore, networked, high-definition, and intelligent solutions are the future direction of all-in-one cameras. From a cost-effectiveness and practicality perspective, all-in-one cameras are gradually replacing traditional ones and becoming the preferred choice in monitoring systems. The market is slowly shifting, and the share of all-in-one cameras is expected to grow significantly in the coming years.
Currently, HD network cameras used in security monitoring include bullet cameras, integrated cameras, dome cameras, and high-speed dome cameras. According to surveys, high-definition integrated cameras and similar models are not yet widely adopted. Bullet cameras, on the other hand, dominate the low-end and some high-end markets due to their mature technology and cost-effectiveness. However, they come with several drawbacks that cannot be ignored.
One major issue is the **focus offset problem**. Bullet cameras consist of two main parts: the body and the lens. Their performance depends on the perfect match between these components. If the user or installer lacks expertise, improper alignment can lead to poor image quality. Manual focusing lenses are commonly used, but this method relies on visual inspection and manual adjustment, which is inefficient and inaccurate. Additionally, bullet cameras are sensitive to environmental factors like moisture, vibration, and thermal expansion, which can cause focus shifts over time, leading to blurry or unstable images.
Another challenge is the **back focus (back focus) adjustment problem**. Due to differences in sensor surfaces and lens back focus, adjusting back focus is a critical process for fixed bullet cameras. Traditional methods use a back focus ring and lock screw, which can wear out after repeated adjustments. Some newer designs use plastic-based self-locking mechanisms, which may fail in extreme temperatures. While more advanced thread-based focusing mechanisms offer better stability, they increase manufacturing costs.
The **night vision problem** is another key concern. Users and manufacturers aim for consistent image quality during both day and night. To achieve 24/7 monitoring, cameras often use infrared cut-off filters, color-to-black switching, 3D noise reduction, and dynamic range enhancement. However, even with low-light sensors, night vision still falls short of daytime clarity. Adequate lighting—such as white light, infrared, or laser—is often required. For bullet cameras, the lens plays a crucial role in low-light performance, and high-quality lenses are expensive, making it difficult for budget-friendly models to deliver excellent night vision.
The **zoom problem** also presents challenges. Many bullet lenses are manual zoom with fixed focal lengths, limiting their use to areas with fixed monitoring points, like corridors or parking lots. Electric zoom lenses exist but are costly and complex to produce. These lenses are typically used in specialized applications, such as border control or forest monitoring, and are not accessible to average users. Additionally, network delays can complicate remote control of zoom functions.
Due to these limitations, the advantages of integrated cameras become more apparent. Hikvision’s Tong Zhenhua noted that integrated cameras offer variable zoom and auto-focus, making them ideal for narrow, long channels. Unlike bullet cameras, which require on-site lens installation and adjustment, all-in-one cameras are easy to install and do not need complex setup. Their compact size makes them suitable for various locations, and network integration allows for power, video, and control via a single cable.
Auto-focus technology ensures clear images at all times by automatically adjusting the lens based on the subject's position. This eliminates the need for manual focusing and improves efficiency. Integrated cameras also feature day-and-night switching, wide dynamic range, digital noise reduction, and excellent low-light performance. Their sealed design offers better waterproofing and longer lifespan compared to traditional cameras.
Compared to dome cameras, integrated cameras provide cost-effective solutions when technical and environmental conditions are met. They are easier to install, with direct power and signal connections, reducing the complexity of traditional setups. When equipped with PTZ functionality, they offer broader coverage and improved mobility.
In summary, while bullet cameras have been popular for years, the rise of integrated cameras marks a shift toward more intelligent, efficient, and user-friendly surveillance solutions. As technology advances, all-in-one cameras are set to become the standard in modern security systems.
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