When facing the forest fires, BelFone Portable Emergency Communication System quickly built a temporary communication security network.

Communication Difficulties in Fire

At the scene of a large-scale sudden mountain forest fire, rescuers often face extremely complex and harsh rescue environments such as: high temperature; drought; steep mountains; strong winds and indeterminate wind directions form turbulent flow and other unfavorable factors, which lead to the great difficulty of fire-fighting work. In particular, the fire rescue communication support work is affected by many unfavorable conditions such as the geographical environment and the wide rescue area, limited on-site facilities, many participants, and difficult management and scheduling, which brings great challenges to the establishment of communication networks and personnel scheduling. Based on the above difficulties, the BelFone Portable Ad Hoc Emergency Rescue System is designed to protect "many unfavorable" rescue sites, so that the communication command between the command center and the front-line rescue sites is efficient and smooth, so as to help rescuers at all levels go deep into the disaster center to carry out rescue in an orderly and efficient manner work.

Dual-band communication covering, large-scale fast networking

When the current network (such as wired link, operator network) is paralyzed in a large area, BelFone portable Ad hoc network emergency rescue system can use multiple TR925D dual-band Ad hoc network equipment to establish a double-layer Emergency Ad hoc network without relying on the basic network facilities. The two-layer network can be detached and connected, which can realize both independent communication within each team and interconnection between teams.

The frequency band 1 of the dual-frequency Ad hoc network equipment, works in the Ad hoc network mode to ensure that the interconnection and communication between the rescue teams fully cover the entire combat area; the frequency band 2, works in the same-frequency relay mode to ensure the internal communication of the team. The personnel use the BF-TD910 digital terminal to realize functions such as real-time voice, emergency alarm, and positioning information reporting, ensuring the interconnection with the front-line rescue personnel and the rear command center.

Military protection level, no fear of fire test

Up to now, the participating rescue teams have fought fiercely for 14 days and nights, and have moved to 7 fire sites. The fire field is overgrown with vegetation, shrubs and weeds, and the temperature continues to up to 40°C during the day and night. The extremely harsh environment and temperature are a test for rescue teams and communication equipment.

The TR925D portable repeater adopts military standard technology, which is durable. When facing the long-term high-temperature rescue tasks, the whole cast aluminum body is conducive to heat dissipation and continuous work. The IP67 protection can easily cope with high temperature, high mountains, steep slopes and various harsh conditions. The equipment is small in size, light and portable, sturdy in structure, and flexible in disassembly and assembly. It can follow the rescue team to move through multiple fire sites continuously through the combination of fixed station, vehicle, and man-packed.

As the front-line rescuers going deep into the fire scene, terminal equipment needs to meet more stringent environmental requirements. BF-TD930 Ad Hoc network digital terminal has IP68 dustproof and waterproof protection and high temperature resistant LCD display, which can work normally in the fire scene up to 40℃. And it is equipped with a series of professional business functions and convenient operation designs, like emergency alarm, cross-region communication, dual-frequency dual-waiting etc, which make a precise communication between front-line personnel and the rear command center.

Public-private mixed radio, Real-time visual scheduling

The fire scene environment is changeable and the team participating in the battle is huge. As the rescue team continues to penetrate the scene, the on-site communication environment is also changing all the time. While equipped with TD930 Ad hoc network digital terminal, BF-SCP960 Public-Private integrated Digital-Analog mixed fusion terminal can further provide strong support for visual scheduling. The whole radio has passed the military-grade protection IP68 quality certification, and the 5.65 inch IPS HD hard screen can work stably in high temperature fire fields, and rescuers can also operate it with gloves. For long-term rescue work, BF-SCP960 is equipped with 8000mAh large-capacity battery to ensure continuous rescue work.

On the way to rescue with the public network covering, the fighters can report real-time status video to the command center through the BF-SCP960 public network channel. The command center can view the images and videos sent back from the front line in real time through the public network cluster scheduling management platform, so as to master the live situation and conduct unified dispatch and command.

When the public network in the disaster area is disconnected, the device quickly switches to the private network DMR/PDT mode to work. BF-SCP960 can also be connected to the BF-TR925D Ad Hoc to establish intercommunication, ensuring real-time intercom with the terminals of different standards of each rescue team, realizing the last mile communication, and ensuring the smooth communication lifeline in the worst environment.