In 2011, the security industry continued to expand at a rapid pace. The video surveillance sector saw a growth rate of 23%, surpassing the GDP growth rate by nearly double. This explosive growth reflects the growing importance of the industry and the swift innovation of new technologies. At the 2011 Shenzhen Ambulance Fair, a constant flow of new technologies and concepts left attendees dazzled. Among the many buzzwords, terms like "high-definition," "networking," "smart," "standardization," and "security" were familiar, while others like "960H," "2M+," "HD-SDI," and "cloud computing" remained less known. Despite the chaos inherent in such rapid development, choosing the right products that suit a hospital's specific environment remains a pressing issue.
The technical path of hospital security development today is a mix of generations, much like the broader industry. Analog monitoring systems from the 1980s, represented by audio-video matrices, still see some use in hospitals. Modular systems, symbolized by video encoders, continue to dominate half of hospital security setups. Meanwhile, the newer digital surveillance systems, marked by network cameras and management platforms, have made significant strides. Five years ago, hospital security might have been analog-heavy, but new facilities now embrace digital solutions, moving toward smarter systems.
Each approach has its strengths and weaknesses. While analog systems are simple, cost-effective, and manageable for small setups, digital systems address scalability and management issues, thanks to robust software platforms. However, the openness of digital systems could still improve, making technology adoption a careful process. Among numerous innovations, we’ve highlighted several key technologies for analysis.
High Definition (HD) has been a prominent trend in the video industry. Many provincial and municipal medical standards now explicitly call for high-definition systems. HD implementation can take different forms, such as Digital HD Cameras (HD-SDI), which follow the HD-SDI protocol set by the HDCCTV Alliance. These offer clear images, low latency, and transmission via the BNC interface. However, they require separate display and storage setups, limiting openness and expansion. Network high-definition video cameras (IPCs), on the other hand, leverage the HDTV standard, using video encoding and network packaging for real-time monitoring at resolutions like 720P, 1080I, and 1080P. They use standard protocols, transmit via IP interfaces, and are easier to deploy, manage, and expand at lower costs. Leading manufacturers favor IPCs as their primary focus. For hospitals, IPCs offering centralized management and linked functionalities are preferable.
Establishing high-definition systems requires more than just front-end cameras—they involve end-to-end high-definition solutions, including transmission, storage, decoding, and display devices. Any weak link can degrade the overall performance.
Networking is another critical aspect of modern surveillance. The fundamental goal is information sharing and centralized management. Hospitals face challenges due to the disjointed nature of multi-phase systems built over time. Networking allows these systems to communicate and share resources based on standard protocols. Key standards include ONVIF and GB/T28181. ONVIF, launched by Axis, Bosch, and Sony, offers open network video product standards, supported by over 80% of global IP surveillance products. GB/T28181, led by the Ministry of Commerce, focuses on interoperability between surveillance platforms, aligning with domestic hospital needs.
Over the last decade, hospital security has evolved beyond mere subsystem stacking. Modern smart hospitals integrate multiple systems—perimeter protection, alarms, access control, intercoms, video surveillance, and intelligent analytics—into a cohesive framework. Manual analysis is replaced by automated integration, reducing operator workload and improving efficiency. A comprehensive security management platform becomes essential.
The first step in building such a platform is managing individual subsystems—monitoring, access control, alarms, and patrols—via a unified network. Challenges arise with older access control systems, which often lack openness. The next phase involves creatingè”动mechanisms that optimize resource allocation and preemptively address issues. Effective linkage demands both technological and managerial expertise.
Advanced technologies like smart systems, NVRs, panoramic views, intelligent retrieval, cloud computing, and IoT are rapidly adopted in healthcare. No single solution is universally superior; the key is ensuring the system meets fundamental security goals: prevention, response, and post-event review. A security protection system integrates intrusion alarms, video surveillance, and access controls, forming either subsystem combinations or fully integrated electronic networks.
As the industry progresses, hospitals must balance innovation with practicality, selecting technologies that enhance usability, scalability, and reliability while fulfilling their unique security needs.
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