Industry background

According to the "Railway Informatization master Plan" issued by the Ministry of Railways, by 2020, China will build a railway transport information system with Chinese characteristics in the whole road, and its overall level will rank among the world's advanced overall goal。At present, the communication of railway passenger stations in China is still limited to traditional broadcasting and analog conventional wireless intercom, and there are widespread problems such as serious call blocking, long call waiting time, serious frequency interference, unclear communication, and many signal blind areas, which can not meet the needs of modern intelligent railway transportation。

What are the communication difficulties in railway daily communication?

China's railway construction has entered a stage of rapid development, but the following problems still need to be solved in daily railway communication:

1, part of the station interval is long: the site protection personnel can not call the station personnel or need multi-level intermediate liaison;

2, signal easy interference: if the maintenance personnel in the adjacent two work areas at the same time construction, easy to signal cross-interference;

3, cross-regional communication limited: for remote areas of the site, can not achieve remote cross-regional communication;

4, there is no guarantee in emergency: the maintenance and management of the turntable in the existing work area is not standardized, there is no fault weakening mechanism, and the communication is not guaranteed in emergency situations;

5, tunnel communication obstruction: there are many tunnels in different stations, the communication distance in the tunnel is less than 500 meters, and the tunnel can not be interconnected;

6, electrical services, public works, power supply, passenger transport, stations and other departments do not have a unified wireless intercom command and dispatch management system;

7, the train warning is not flexible enough, there are problems such as unclear voice, cumbersome operation and not timely。

8, the railway basic road conditions, facilities, communication lines of the operators to carry out inspection data, position dynamics and formal track has not been effectively supervised。

Overview of Beifeng IP interconnection intelligent communication solutions

Based on railway safety operation and transportation needs, Beifeng Communication tailor-made IP interconnection intelligent railway communication management system。The system is based on advanced DMR/PDT digital wireless communication technology，Take the railway Intranet as the bridge，Use existing infrastructure at stations along the route，And computer technology to assist all kinds of data information state integrated application management and wireless communication terminal skillfully integrated into one，To meet the needs of public works, electrical services, power supply and vehicle departments along the railway line for operation, communication and daily scheduling communication management，A new mode of railway communication to realize intelligent management and three-dimensional command and dispatch。

Design principle

① According to the measured results of the scope and terrain of different railway sections, the required number of base stations is determined (7-10 km to build a base station is appropriate), and B/S architecture and all-IP technology are used to realize intelligent IP interconnection between different railway stations。

② Each base station uses the computer room, tower and link along the railway for intelligent IP link。

③ All network base stations in the system are formed into an independent subnet, and terminal devices are configured for independent communication in departments such as public works, electrical services, power supply and vehicles. Terminals are equipped with rich voice scheduling functions such as single call, group call, full call, temporary group call, and dynamic group call。

④ The wired dispatching platform can be configured for the road bureau, section and station, and the terminal in the system can be commanded and scheduled through the client and the command agent dispatching desk, so as to realize the visual scheduling, command delivery and voice/information scheduling under the GIS plane map and satellite map。

⑤ Dispatchers or administrators of stations at all levels create inspection tasks and send them to the specified staff terminal (for example, patrol route planning, patrol area fence, shift punch, patrol point punch, satellite positioning, digital recording, etc.). Dispatchers can view the work status of personnel in real time on the dispatcher console。

⑥ When an emergency or abnormal situation is found during inspection or task execution, the personnel can upload and report the problem through the handheld terminal. When the personnel encounters an accident, they can press the button for help immediately. The dispatcher can mobilize nearby personnel to provide support or guide the on-site personnel to handle the problem according to the on-site situation。

Customer value

After the system is built，It can meet the communication needs of different railway stations and personnel，The system can solve the problem of uneven channel traffic and interference，At the same time, it provides personnel real-time information and job information transmission, priority setting and recording functions，System IP architecture，Support multi-base station interconnection，Meet the needs of system expansion and interconnection of stations within the railway bureau。