Wireless communication system for large-scale sports events

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简介
Beifeng large-scale sports event wireless communication system designed a set of operation support and on-site service solutions for the event, the solution selected high-performance commercial digital products, the use of efficient spectrum data, for the event organizers of high-density command scheduling, communication to provide a strong communication guarantee。
方案

Demand analysis:
In recent years, China has hosted a number of large-scale sports events, in order to ensure the smooth progress of the events, more and more events have been usedWireless communication。However, with the expansion of the scale of the event, the problems that need to be solved in the aspect of wireless communication have become increasingly prominent. During the event, some special requirements for wireless communication have been put forward, mainly in the following aspects:
1.The area is concentrated, the number of personnel is large, and the packet communication system is complex。
2.Frequency resources are limited, and the system needs to save frequency resources。
3.The building environment is complex and the communication blind area needs to be solved。
4.Inter-group communication and external electromagnetic environment challenge the anti-interference ability of wireless communication system。
5.Command center unified dispatch command。
In addition to packet communication, the dispatching platform of unified communication command needs to be established in the command center。
Solution:
Beifeng Company will design a complete set of operational support and on-site services for the eventsolutionThe solution selects high-performance commercial digital products and uses efficient spectrum data to provide a strong communication guarantee for the high-density command scheduling and communication of the event organizers。

1.Firstly, the "digital multi-channel base station" mode is adopted, and 15 call channel base stations are set up according to the actual packet。Able to support the communication needs of 15 groups at the same time。The command and dispatch ability of field communication personnel has been greatly improved。
2.Digital wireless devices are adopted by 6.25kHz ultra-narrow bandwidth channel。Compared with the original 25kHz bandwidth channel analog walkie-talkie spectrum utilization increased by 4 times。Improved spectrum utilization allows more users to be loaded on a given channel。
3.Increase the power of the signal amplifier according to the size of the blind area。
4.Digital walkie-talkies can filter the noise and reconstruct the signal, the communication system calls, voice and addressing are digitally encoded, anti-interference ability is strong, so the user's call will be more clear。The voice is digitally encoded to maintain a high level even when the signal is weak。
5.For scheduling management problems。It is necessary to design background running software, our company is currently developing corresponding management software for digital products。

Program features:

High spectrum utilization

Clear voice quality

Complete voice call function

Packet scheduling management

Strong anti-interference ability


亮点
  • High spectrum utilization
  • Clear voice quality
Relevant success stories