Forest-fire protection is very complex and arduous, and communication is undoubtedly the basic guarantee and prerequisite for the implementation of this work. At present, the world has made remarkable progress in the field of fire prevention and communication in forest grasslands, but it still needs to face serious challenges such as complex terrain environment and weak communication infrastructure.

Especially in the forest or grassland with rugged terrain and extreme climate, ensuring the stability and comprehensive coverage of communication has become a major problem. In some areas, the forest area is wide and large, and the areas where serious fires occur are mostly vast forests or mountains, and transportation is inconvenient, the infrastructure construction in the forest area is relatively backward, and the necessary conditions for the construction of public network communication network are lacking. Based on the above situation, how to use the existing technical means such as ultra-short wave, satellite, mobile public network, wired, short wave and microwave communication to make up for the communication in the non-signal environment?

Beidou’s short message communicating technique

BF-TR900 digital repeater equipped with Beidou’s short message communicating technique, its terminal can share Beidou communication mode through TR900 which can maximize the use of scarce satellite communication resources. Meanwhile, BF-TR900 supports continuous high power working under analog, DMR, or analog/DMR adaptive mode, IP interconnection can just choose time slot 1 or time slot 2, or interconnect all to ensure the rapid deployment of network node under emergencies.

Dual Band Ad hoc Network

R925D, a digital portable dual band Ad hoc terminal, is a special self-organization, peer-to-peer, and multi-hop wireless network. It does not depend on basic settings, with temporary networking, rapid deployment, no control center, strong resistance, etc. TR925D can connect with TR900, take maximum advantage of its private network, the unique handoff function, to achieve the purpose of hierarchy networking, hierarchy command, and wide range of signal coverage long-distance communication.

Single Frequency Relay Technique

BF-TD930 adopts Multi-hop multilevel relay technology, only relying on the relay function of the terminal itself, turning Ad Hoc walkie-talkie into a communication signal source, so as to form a powerful intercom system, which can realize the signal coverage in the no-center AD hoc network and special environment. Different from the single frequency relay of conventional digital radio, BF-TD930 can used as the portable repeater under conventional PDT/DMR mode, which can help client establish a same frequency Trunking network, establish a transit channel between two spots in a certain area, expand the original interoperability range of the terminal, and make up for the shortcomings of the traditional walkie-talkie short communication distance and easy frequency.

Communication is the link of forest grassland fire prevention work, and it is an essential measure to guarantee that the fire can be reported in time after the discovery of fire, and the fire information can be transmitted quickly and effectively. Only by establishing a complete forest fire communication network and perfect modern communication technology in the forest area can we give full play to the functions of fire prevention systems such as forest fire forecast and forest fire monitoring, implement effective firefighting command, and form an interconnected, open and shared, practical and efficient forest fire protection system.