Quest Olympic communications radio management – E1 Video Encoder/Decoder – EOP 8
Beijing Olympic Fencing competitions must have a lot of people saw, and different from past Olympic Games, the fencing behind the holding of the cable players gone, replaced worn on the athlete's head of wireless devices. This is the Beijing Olympic Games "Technology Olympics" a microcosm of that part of the game make extensive use of advanced radio technology to replace the previous complex cable systems.
According to statistics, the Beijing Olympic Games use a lot of wireless triggering device, such as the starting gun, electronic timing and scoring equipment, radio equipment, total more than 30,000 units, the use frequency is also expected to more than 3000. In addition, there is security, control, and other structures of the private wireless communications system, national athletes, the media, government leaders and tourists from entering into the radio transmission equipment is also less than 2 million units. Beijing City buildings with dense, widely used types of radio services, with more than ten million kinds of radio stations and tens of millions of mobile phones, which are made during the Olympic Games are very complex electromagnetic environment of radio, brought to radio management many challenges.
According to my understanding, the radio management of the Beijing Olympic Games There are three major tasks: First, the protection of the frequency resources, namely radio frequency resources during the Olympic Games for unified command and management to ensure the command scheduling, competition, security, transportation, cultural activities, etc. departments, and news reports, television, signal transmission, and other foreign dignitaries visiting the needs of radio frequencies. Second, to maintain order in electromagnetic space, so that a variety of radio equipment and radio network can work and not interfere with each other. Third, to protect the safety of the work of various radio systems, to eliminate malicious interference.
In accordance with the deployment, during the Olympic Games will be divided into periods, sub-regional, sub-band implementation of the radio controls, 32 venues in Beijing is divided into 11 radio monitoring regions, each car is equipped with a radio monitoring, radio monitoring by region and management of . There will also be a combination of fixed and mobile surveillance monitoring in two ways, on the whole are implemented in Beijing and the neighboring radio monitoring, to ensure the normal use of radio equipment.
To this end, Beijing Radio Management Committee specifically mobilized from the 200 professionals nationwide, in all Olympic venues for the wireless device management and monitoring work. In order to facilitate between the staff contacted immediately, Motorola and partners i.Tech company free of charge to the Beijing Radio Management Committee donations, and its structures based on MOTOTRBO professional digital conventional communications system, an independent communications network. The communication network can, in exceptional cases, as an Olympic alternate wireless communication network to use. Entire system consists of 4 sets of R8200 digital repeater stations, 200 P8268 digital radio and digital turntable 50 M8268 composition, worth 2.3 million yuan. Although the Beijing Olympic venues are scattered, but this network using high-power system covering a large area, two (standby) repeater stations to cover all the Olympic venues within five rings. The MOTOTRBO professional digital communication system with common conventional digital trunking systems, digital trunking systems are generally covered cell system, with multi-channel sharing, to cover the entire Beijing to deploy, too much trouble.
So why should a variety of communication networks in both cases, to build an independent communications systems? Motorola stakeholders answer is the existing mobile communication and digital trunking networks belong to the nature of the public network, reliability, anti-interference ability and recoverability of all have some limitations, but the Olympics these three aspects of radio management of all have very high requirements, after all, this is directly related to the Olympics, all wireless communications, wireless devices can safely run. For example in the event of radio interference event, staff need to coordinate with each other quickly identify the source of interference, and to assist the judiciary severely punish the perpetrators; if large-scale public wireless networks suffer paralysis or strong interference, then the Radio Regulatory Commission in Beijing this on MOTOTRBO professional digital conventional communication systems dedicated communications network can also play a role in emergency communications.
According to the staff, MOTOTRBO professional digital communication system as a conventional digital systems, general radio, radio stations can not interfere with its, and its digital encoding more than 16 million group, no sophisticated means and equipment are simply not listening. In addition, MOTOTRBO professional digital conventional communication systems are highly durable handheld devices, even 30 minutes of immersion can be used as usual, but its battery life than the more conventional analog radio 40%.
Outside opportune advanced equipment in to help out, radio communications management team for the Olympic security, "the ultimate line of defense", the final will be able to successfully complete the task.
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