Accident background

At 8:20 am on October 21, an explosion occurred at 222 Taiyuan South Street in Heping District of Shenyang, causing damage to nearby buildings and a bus at the scene。At present, the accident has killed 3 people and injured more than 30 people, the injured have been sent to the hospital for treatment, the accident investigation and follow-up rescue work is under way。

Accident characteristics

(1) Universality

Natural gas and gas are supplied by pipelines, while liquefied petroleum gas is mainly supplied in canned form。Urban gas pipelines and facilities have a wide range of layout, and accidents may occur anywhere there are gas pipelines or facilities。

(2) Suddenness

Gas accidents in the city are often due to the damage of equipment and pipelines, which generally occur without warning and are sudden。

(3) Unpredictability

Urban gas accidents are generally unrelated to climate and other reasons, and may occur in any season and under any weather conditions。

(4) Large scope of influence

Once the gas accident occurs, the scope of impact is relatively large, not only affecting the production, transportation, use of the site, a certain area around will be affected by the accident。For example, in a residential building, a gas explosion in one household may affect the whole building。

(5) Causing secondary disasters

Gas accident itself can form the main disaster, in the case of earthquake, landslide, formation change, flood, etc., the damage of gas facilities will cause secondary damage。

solution

In view of the weak links in urban management emergency response, there is an urgent need for a comprehensive communication system that can ensure "smooth communication, timely information, complete data, in place command, easy to carry, convenient deployment, and strong environmental adaptability"。

The BF-9000 mission-critical communication system takes emergency reporting, real-time early warning, monitoring, prevention and control, emergency management and collaborative handling as the core, and adopts a three-layer networking mode of preset backbone network, on-site emergency network and detachment battle network。A variety of communication means are integrated to ensure cross-regional and cross-departmental information sharing and coordination, meet the "comprehensive, three-dimensional and visual" emergency management needs of urban emergency management departments, ensure that command centers at all levels understand the situation on the scene in real time, and provide effective communication support for urban emergency rescue。

Application value

(1) Integrated air and space monitoring

The scheme can be combined with satellite, unmanned aerial vehicle and ground communication to form a three-dimensional communication network，Learn the situation of the accident scene in real time through a variety of terminal devices，For urban emergency management to provide a "screen view" at the same time，Meet the basic needs of communication scheduling at all levels，The four-dimensional interworking effect of "sky, air, earth and people" is realized。

(2) Integrated information fusion

Narrowband private network provides voice and narrowband data services, and broadband network provides video communication and data services。The scheme builds a highly integrated distributed integrated information and communication system with optimized structure through broadband and narrow band fusion communication to ensure real-time command and dispatch in front and rear, and build a new mode of efficient, accurate and unobstructed emergency communication for all departments and levels of business。

(3) Standardized military equipment

The base station of the system is made of military-standard all-cast aluminum body, which dissipates heat quickly and is durable。The portable design is easy to open, withdraw and transfer the equipment in a short time in urban emergencies, adapt to the harsh environment of the accident site, and extend the service life and application value of the equipment。

(4) Flexible construction network

The system equipment can be started immediately, it can work alone or in network, and the subordinate relationship on the command network is clear。一机两用的优势，可以通联上级与本级指挥网实现越级指挥，提升突发事故接报、应急指挥调度管理、即时通讯等工作效率，以“灵活化+即时化”为基础助推实现“1+1>2”的效能提升。

(5) Secure digital encryption

The system adopts dynamic and static speech encryption to fundamentally solve the problem of information security, and the circuit design adopts large-scale digital circuit to be stable and reliable。