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The full name of GB28181 refers to the Technical Requirements for Information transmission, exchange and Control of Public Security Video surveillance Network System, while JT1078 mainly refers to the on-board video surveillance protocol of the Ministry of Communications. The two are applicable to different fields. GB28181 specifies the interconnection structure, communication protocol structure, transmission, exchange and control of information transmission, alarm network system in the city, and the basic requirements and security requirements
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Public security GB28181 agreement and JT1078 transport standard agreement difference
Time：
2022-04-11 11:52
Source：
The full name of GB28181 refers to the Technical Requirements for Information transmission, exchange and Control of Public Security Video surveillance Network System, while JT1078 mainly refers to the on-board video surveillance protocol of the Ministry of Communications. The two are applicable to different fields. GB28181 specifies the interconnection structure, communication protocol structure, transmission, exchange and control of information transmission, alarm network system in the city, the basic requirements and security requirements of transmission, exchange, control, as well as control, transmission process and protocol interface and other technical requirements. It is mainly suitable for video surveillance in public places. It is designed for wired LAN environment at the beginning. The first version of 2011 mainly uses UDP protocol.
1. Requirements for inspection and certification:
Both of them need to be tested by the testing institutions designated by the competent authorities. GB28181 needs to be certified by one and three Ministries of Public Security.
JT1078 is required to pass several testing institutions designated by the Information Center of the Ministry of Communications, such as Transportation Communication Information Engineering Quality Testing Center, Shijiazhuang Institute 54 and other institutions testing certification.
2. Major Version:
GB28181 has 2011 version and 2016 version.
Only the first version of JT1078 was released in 2017.
3. Based on protocol:
GB28181 is mainly based on UDP, most devices to wired access, for LAN environment a few handheld law enforcement equipment to 4G access;
JT1078 is mainly TCP based, as the vehicle equipment to wireless 4G access.
4. Video stream Format:
GB28181 video stream is more complex, mainly RTP + PS + H.264 package.
Ministry 1078 video streaming package is relatively simple, mainly RTP +H.264, less PS layer.
5.GB28181相对于JT1078的优势:
1. There is a very mature cascaded solution, which can be cascaded between the upper and lower levels, and between the same level. You can push device directories and status.
2. JT1078 does not have a good cascading scheme, and video platforms at all levels cannot cascade one after another. The superior platform mainly relies on JT/T 809 protocol for video requests.
Due to the very good cascade design of GB28181, we can easily synchronize the vehicle tree of the ministry's enterprise platform through the GB28181 SIP protocol instruction to the past, the GB28181 platform received the synchronization data, naturally formed an organization structure tree, the leaf node for the camera.
However, due to the consideration of cascade, GB28181's video request process is complex compared with JT1078's instruction. The detailed GB28181 video request flow chart is as follows:
There was no overlap between the two. In recent years, some local standards, such as Sichuan standard, required the on-board video to be transferred to the GB28181 platform of the Ministry of Public Security for monitoring, and the two gradually crossed paths. The two intersect in two ways:
1. One is that the vehicle-mounted video equipment accesses the Ministry standard enterprise platform through the Ministry Standard 1078 video protocol, and then transfers to GB28181 platform through audio and video conversion and forwarding.
2. One is the fixed 28181 equipment and vehicle equipment, mixed access to the ministry of enterprise platform.
Both methods need to design middleware to carry out complex protocol conversion, audio codec, and data forwarding. In the process of codec and forwarding, high performance exchange should be maintained to avoid video delay.
On the basis of the existing video server, JT808.com adds GB28181 protocol conversion, so that the video server can convert 1078 video stream into GB28181 PS stream, and push the stream to GB28181 video surveillance platform.
The main functions are as follows:
1) Inter-platform registration and authentication
2) Automatically push the device list and catalog list at a regular time, code the GB28181 industry specifications for the vehicle equipment and its affiliated organizational structure, and push it to the GB28181 monitoring platform at a regular time. The monitoring platform will automatically form a monitoring level catalog and synchronize the online and offline status of the equipment in real time.
3) Audio and video PS push stream
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