I. Background analysis
Highway monitoring system is through the field facilities along the line (all kinds of detection, display and other devices) timely, accurate, complete collection and forecast the road ahead of all kinds of information, such as traffic volume, accidents, road conditions, road users through the monitoring center monitoring (display) equipment to intuitively understand the traffic condition. In case of traffic anomaly, it can determine the accident or handhold area, and release the corresponding induction and rescue information in real time.
Highway monitoring system can not only improve the average speed of vehicles during the peak period, increase the volume of traffic during the peak period, reduce the degree of traffic congestion and vehicle delay time, but also greatly reduce traffic accidents and ensure traffic safety, save fuel and reduce vehicle wear, shorten transport time, reduce pollution, Give full play to the functions of speedway, safety, comfort and high efficiency.
Second, demand analysis
The provincial highway Administration needs to monitor, manage and dispatch all highways in the province. The monitoring center of each region selects and uploads video signals within its jurisdiction to the provincial center, which monitors and manages them in a unified manner. Network hierarchical control is adopted among provincial center, monitoring center and monitoring sub-center. The control signal is forwarded to the device to be controlled in the form of step by step forwarding.
Expressway video surveillance system is mainly used to monitor key sections of expressway such as expressway trunk lines, interchanges and tunnels, master the traffic conditions of expressway, timely find traffic jams and illegal vehicles, and timely give guidance to ensure the safety and unobstructed of expressway.
Iii. Design scheme
EasyNVR+EasyNVS integrated management platform is recommended. EasyNVR intelligent cloud terminal is deployed on the Intranet to manage Intranet IPC devices. The EasyNVS cloud management platform is deployed on the public network. It is used for video stream distribution and cloud o&M access. The EasyNVR and EasyNVS cloud management platform interact with each other through internal protocols, and can exchange information from the Intranet to the public network for distribution.
In the construction of expressway video monitoring system, EasyNVR can monitor the local video signals required by each toll station. All the camera signals of each road section are introduced into the local video surveillance EasyNVR system through onVIF protocol or RTSP stream protocol, and the main station monitors and manages all the local images.
An expressway usually sets up several section monitoring sub-centers. Multiple sets of EasyNVR can be deployed to monitor and manage a certain section respectively. The images of each road section can be selected for transmission according to the road section monitoring sub-center, and EasyNVS deployed in the road section monitoring sub-center can carry out unified monitoring and management of the uploaded images of each road section.
The unified management of multiple expressways is usually divided into several areas according to the region. One area monitors and manages several adjacent or connected expressways in a region. The monitoring sub-centers of these expressways upload images according to the requirements of the regional monitoring center, and the regional monitoring center uniformly monitors and manages the images uploaded by the monitoring sub-centers of each section.
Iv. Program introduction
1. Full HD
EasyNVR expressway monitoring system adopts full HD technology to realize full HD video monitoring integrating hd acquisition, transmission, display and storage. It can not only provide clear image details, but also bring more data sources to the intelligent analysis system.
2. Split screen display
In addition to watching through the TV wall, users can also log in to the center platform through web clients such as computers and mobile phones to browse and monitor the front-end audio and video in real time. Computer web client interface not only supports the transmission of 720P, 1080P and higher resolution video, but also supports multi-channel split-screen display.
3. Video playback
There is evidence after the incident. The video playback function of the EasyNVR video surveillance platform supports local video playback, 7*24 hours of real-time video recording for a successfully connected camera, and video retrieval and playback.
4, strong openness, excellent compatibility of equipment
As long as the network surveillance camera IPC, hard disk recorder NVR, and the equipment supports the standard RTSP/Onvif protocol, can access real-time video stream into EasyNVR system, and realize the live video broadcast, video recording, retrieval and playback services for expressway monitoring site.
5. Provide secondary development interface
Through API interface documents, EasyNVS video management transcoding streams can be directly integrated into upper-level business platforms to realize video viewing.
6. Cloud visual operation and maintenance
EasyNVR is deployed in the zone center of each road section, sinks to the terminal network, and is placed on the user’s Intranet site to connect with Intranet cameras, NVR network hard disk recorders and other devices. At the same time, EasyNVS actively connects to the cloud management platform of EasyNVS, so that EasyNVS can output unified capabilities, including audio and video live broadcast, video recording, video retrieval and playback, user management and permission management, device management and relationship management, Intranet port penetrating output, and cloud visual operation and maintenance.
7. Multi-system integrated management
Based on video monitoring system, the system integrates various high-speed applications such as road event detection system, environmental monitoring system and information release system, and effectively integrates expressway data and video services to realize unified application of services.