Holding the Fireline Lifeline: Wireless Communications Provide Full Support for Emergency Response to Forest and Grassland Fires

Forest and grassland fires are characterized by strong suddenness, rapid spread, extensive burned areas, and complex terrain and environments, making them one of the most severe natural disasters in the forest and grassland industry. Fire incidents mostly occur in deep mountains and dense forests or remote grasslands, where public network signals are inherently weak. In addition, fires are often accompanied by the "three cuts" of power, network, and road outages. Ground base stations and optical cable lines are highly susceptible to high-temperature damage and smoke-induced destruction, causing public communications networks to collapse entirely. At a critical stage when fire conditions change by the moment and rescue efforts race against time, loss of communications means failed command, blinded situational awareness, and inaccurate dispatch. With their core advantages of independence from infrastructure, rapid networking, anti-interference capability, and beyond-line-of-sight coverage, wireless communications have become the only reliable communications means in extreme fireground environments, providing full-process support for fireground command and dispatch, force coordination, situational assessment, and emergency risk avoidance, and shoring up the communications lifeline for forest and grassland fire emergency response.

Ultra-rapid network establishment fills the gap and resolves the fireground dilemma of no network available. Forest and grassland fire sites feature complex terrain and obstructed transportation, making it difficult for large communications equipment to enter quickly. Traditional wired communications cannot be deployed at all, and conventional walkie-talkies, obstructed by mountains and trees, suffer from poor signal penetration and short communication range, unable to meet area-wide rescue needs. In contrast, Mesh self-organizing networks, portable private networks, and backpack-mounted wireless communication devices are lightweight and easy to carry. They can rapidly advance to the forefront of the fireline with firefighting teams and assault squads, requiring no cabling and no reliance on existing base stations or power, and can autonomously form a network upon power-up, establishing an independent, stable, and dedicated fireground emergency communications network within a short time. This can quickly fill the communications void after public network collapse, enabling full communications coverage in signal blind zones such as deep firegrounds, remote fire points, and valley forests, completely resolving the core fireground challenge of "unable to connect and unable to call," and buying golden response time for emergency response.

Extending area-wide communications coverage to achieve visualized fireline command and dispatch. Fireground operations span a wide area with scattered firefighting points. Frontline firefighting teams, patrol and observation personnel, and logistics support teams are distributed across different mountain peaks, slopes, and forest areas, and traditional communications methods cannot achieve area-wide coordination. Wireless self-organizing networks possess multi-hop relay and self-healing capabilities, with each terminal able to serve as a signal relay node. As rescue teams advance, signals can be relayed and extended level by level, crossing mountain ravines and dense forest obstruction, continuously extending communications links to the foremost fireline. At the same time, wireless communications networks can carry high-definition video image transmission, real-time voice intercom, and personnel positioning data transmission. Drone aerial footage, real-time fireground situations, and frontline operational imagery can be transmitted back to the forward fireground command post in real time. Command personnel can intuitively grasp area-wide information such as fire spread direction, fire point distribution, and personnel positions, precisely assess fire conditions, scientifically plan firefighting routes, and rationally allocate manpower and resources, moving away from the traditional model of "blind firefighting and experience-based command" to achieve visualized, precise, and efficient fireground command.

Breaking down multi-department coordination barriers to build an integrated rescue system. Forest and grassland firefighting is a multi-department joint operation, with multiple rescue forces assembled on site, including forestry management, fire rescue, armed police emergency response, medical rescue, and local emergency repair teams. The original communications equipment of various teams differs in standard, and their communications systems are mutually independent, making them highly prone to forming communications islands and causing problems such as poor directive transmission, disjointed coordination, and chaotic force dispatch, which seriously affect firefighting efficiency. Wireless private network communications possess good compatibility and interoperability, and can interface with and integrate various walkie-talkie terminals and command devices, bringing all rescue forces into the same communications network to achieve cross-department, cross-team real-time voice interoperability, information sharing, and collaborative operations. This effectively eliminates joint operation communications barriers, enabling unified command, unified dispatch, and unified action, greatly enhancing fireground joint operational capability and helping achieve the goal of "early detection, small-scale containment, and full extinguishment" of fires.

Space-ground integrated backup transmission links remote command decisions. The handling of major forest and grassland fires requires remote overall coordination and cross-regional deployment of rescue resources by higher-level competent authorities. When ground private networks cannot achieve long-distance transmission, wireless communications can interface with portable satellite stations and satellite communication terminals to build a space-ground integrated communications system of "ground private network plus satellite backup." Key information such as real-time fireground video, fire data, rescue progress, and on-site situations can be stably transmitted back to municipal and provincial remote command centers. At the same time, higher-level dispatch directives, prevention and control requirements, and meteorological warning information can be received synchronously, building a complete closed-loop command link of "frontline fireground—forward command post—remote command center," enabling precise implementation of remote decisions and efficient advancement of frontline response.

Safeguarding frontline personnel safety and shoring up the fireground risk avoidance defense line. The fireground environment is complex and changeable, with extremely high sudden risks such as flying embers, flashovers, reignition, and sudden wind shifts, which can easily trap or injure personnel. Relying on the real-time positioning, one-click distress call, and area-wide situational sharing functions of wireless communications, command platforms can grasp in real time the operational positions and movement status of every firefighting team and every frontline person. In the event of a sudden danger, frontline personnel can report and call for help with one click, and the command side can quickly pinpoint their location and dispatch nearby forces for rescue. At the same time, directives such as sudden fire changes, high-wind warnings, and emergency evacuation can be pushed immediately, quickly guiding teams to avoid danger and withdraw, minimizing fireground operational risks and safeguarding the lives of firefighting personnel.

In summary, wireless communications are an irreplaceable core support in emergency response to forest and grassland fires. In extreme, harsh fireground environments where networks have collapsed, they open up a fully connected command and communications link, enabling fire situational visibility, rescue force controllability, and joint operational feasibility. They provide all-around support for efficient, precise, and safe fireground command and dispatch, offering solid technical assurance for efficiently handling forest and grassland fires and safeguarding forest and grassland ecological security.