Multi-Source Video Fusion Platform（CMS&VMS）: Empowering Visualized Management and Efficient Emergency Response of Expressways

In the real-time monitoring of expressway sections, traffic flow guidance, accident emergency response, and maintenance operation management, full-link video interconnection, cross-regional collaborative scheduling, and rapid response are the core to ensuring smooth traffic and reducing accident losses. The multi-source video fusion visualized command and dispatch platform, with its capabilities of full-scenario equipment compatibility, complex environment network adaptation, intelligent risk identification, and data security protection, has become a key solution to solve the problems of video disconnection between fixed monitoring and mobile operation, and delayed emergency response in expressway scenarios. It provides strong support for the industry to build an expressway management system featuring "real-time visualization, precise scheduling, and efficient collaboration".

I. Full Equipment Compatibility, Covering All Expressway Scenarios

Expressway management involves various types of equipment such as fixed section cameras, toll station monitoring, patrol vehicle on-board devices, maintenance operation ball cameras, and UAV inspections, with a wide range of brands and models. The platform is compatible with fixed section cameras (IPC/NVR) of mainstream brands such as Hikvision and Dahua, realizing unified access of multi-vendor equipment through the national standard GB28181 protocol. It also supports network connection of mobile devices such as 4G/5G on-board DVRs, ball cameras, UAV image transmission, and law enforcement recorders for maintenance personnel, truly connecting the video link of "section monitoring + toll station management + patrol disposal + maintenance operation". Whether it is real-time preview of key sections such as tunnels and bridges (supporting PTZ pan-tilt control and multi-screen rotation), traffic flow monitoring at toll stations, or image transmission from accident scenes and high-altitude road condition survey by UAVs, the platform can centrally aggregate and manage, eliminating video data silos in all links of expressways.

II. Complex Environment Adaptation, Ensuring Stable Communication in Key Scenarios

Expressways often pass through mountainous areas, tunnels, and remote regions, where network signals are easily interfered by terrain, leading to stuttering and interruption of traditional video transmission. The platform is equipped with a specially optimized narrowband weak network image transmission protocol algorithm, whose real-time performance and fluency are superior to the national standard GB28181-2011/2016. It can adapt to complex network environments such as wireless and wired networks. Even in mountainous sections with weak signals or tunnels with signal shielding, it can still stably transmit high-definition videos. Moreover, it only needs 5 ports for deployment, facilitating penetration of expressway intranet boundaries/network gate devices, ensuring real-time linkage between section monitoring, accident scenes, and command centers, and avoiding delays in traffic flow guidance and accident disposal due to network problems.

III. AI+GIS Fusion, Improving the Efficiency of Intelligent Expressway Management

The platform supports the expansion of AI algorithms such as traffic density recognition, abnormal accident detection (e.g., vehicle stagnation, scattered objects), and license plate recognition. It can real-time monitor road congestion and potential traffic accidents, trigger automatic early warnings, and push them to the command center. At the same time, it integrates Baidu/Amap/ArcGIS electronic map functions, supporting real-time trajectory tracking and historical trajectory playback of patrol vehicles, maintenance vehicles, and UAVs. Combined with the offline map function, it can accurately locate accident points and operation areas even in network-free scenarios. When a traffic accident occurs, the command center can quickly grasp the surrounding rescue resources and toll station distribution of the scene through the "GIS integrated map", and remotely dispatch patrol forces and rescue vehicles with the help of voice intercom and PTT public network intercom, realizing efficient connection of "hidden danger early warning - on-site scheduling - traffic flow guidance".

IV. Multiple Security Protection, Safeguarding Core Expressway Data

Expressway data involves sensitive content such as section monitoring images, traffic flow information, and toll data, so security is crucial. The platform adopts a five-level user permission design, supporting hierarchical management of equipment and users by sections and functional departments to prevent unauthorized access to sensitive videos. It also provides local video encryption, air channel encryption (AES128/256), and the client can be equipped with U盾 hardware encryption, requiring dynamic key decoding at the receiving end, building a solid security defense line throughout the entire process of data collection, transmission, and storage. In addition, the platform can be deployed in expressway private networks and local area networks, achieving physical isolation through operator APN/VPDN private networks, which meets the information security requirements of the expressway industry and eliminates the risk of data leakage.

V. Flexible System Connection, Reducing Expressway Reconstruction Costs

The platform has high openness, providing C/S SDK and B/S WEB SDK (including RESTful interfaces), supporting multi-language development such as Java and C#, and can be quickly integrated with existing business systems of expressways (e.g., toll management systems, traffic flow monitoring systems, maintenance operation systems). For example, command personnel can directly view real-time images or historical videos of corresponding congested sections by clicking "retrieve video" in the traffic flow monitoring system without switching multiple systems. At the same time, it supports server cascading expansion. A single server can access 2000 devices, and a million-level platform can be built after cascading, meeting the large-scale application needs of cross-regional expressway networks and reducing the time and capital investment in digital transformation.

With the core advantages of full equipment compatibility, complex environment adaptation, intelligent management, and safety and reliability, the multi-source video fusion visualized command and dispatch platform provides a full-scenario visualized solution for the expressway industry from daily monitoring to emergency response. Whether it is improving the efficiency of section management, shortening the accident response time, or enhancing cross-regional collaboration capabilities, the platform can become an important assistant for the digital transformation of the expressway industry, promoting the construction of a smoother, safer, and more intelligent modern expressway management system.