Dingjian Tiantong satellite handheld terminal takes "one-click SOS + intelligent positioning" as the core, integrates extreme environmental adaptability from -40°C to 80°C with four-mode satellite positioning and dual-mode communication capabilities, and builds a full-process closed loop of "early warning-positioning-rescue-disposal", becoming a lifeline guarantee tool that can "come when called upon and can fight when it comes" in emergency rescue scenarios.

Core technical characteristics

Adaptability to extreme environments

temperature range: -It operates in a wide temperature range of 40°C to 80°C and uses aviation-grade titanium alloy + nano-coating materials to ensure stability in extremely cold and extremely hot environments. During the Antarctic scientific expedition, the equipment worked continuously for 24 hours at -40°C, the calls were clear and without interruption, and the GPS positioning error was less than 5 meters. ； In the desert scene, the surface temperature is controlled within 60°C when the surface temperature is 50°C, and the battery life is up to 8 hours (40% longer than conventional satellite phones).

Explosion proof and durable: IP68 dust-proof, waterproof and drop-proof, explosion-proof lithium-ion battery with intelligent temperature control algorithm can release more than 80% of the power at low temperatures, and supports fast charging in all temperature ranges.

Intelligent positioning and communication capabilities

Single Beidou high-precision positioning: The domestically produced single Beidou satellite positioning system, combined with satellite-assisted star search technology, completes satellite connection within 30 seconds, and the positioning accuracy reaches centimeter level.

Dual mode communication: It supports seamless switching between 5G and Tiantong satellites. It automatically switches to high-speed mode in public network coverage areas and seamlessly switches to satellite mode in blind areas (such as earthquake-stricken areas and polar regions). The communication establishment time is shortened to less than 2 minutes. The data transmission rate reaches 384kbps, meeting the needs of voice, text messages and basic data.

One-click SOS function: Press the SOS button for more than 2 seconds to automatically send a distress signal including location information and support two-way calls. The rescue platform can obtain the location in real time, coordinate resources such as the police and emergency centers, and realize a closed loop of "help-location-rescue".

Full-process closed-loop guarantee mechanism

Risk warning and inspection

Relying on "outpost" forces such as grassroots disaster informants and emergency managers, combined with Beidou positioning and satellite communications, we conduct high-frequency inspections of key areas (such as dilapidated buildings after earthquakes, high and steep slopes, reservoirs and ponds). Dynamic monitoring and research: Use the results of the first national natural disaster census, combined with meteorological and geological data, to issue accurate early warnings.

Emergency response and disposal

Rapid positioning and rescue coordination: After the SOS signal is triggered, the rescue platform immediately obtains location information and dispatches the nearest rescue force. During the floods in Zhejiang and Fujian, emergency managers discovered a sharp rise in water levels during night patrols and relocated 299 construction workers within an hour to avoid flash floods.

Professional disposal and closed-loop management: Combining engineering technical means (such as pond filling, pressure infiltration, demolition of dangerous buildings) and personnel transfer to ensure a closed loop of the whole process of "inspection-study-judgment-disposal".

System coverage and reliability

Tiantong Satellite System: Three geosynchronous orbit satellites cover China and surrounding areas, the Middle East, Africa and the Pacific/Indian Ocean. They use S-band multi-beam technology and dynamic resource management to ensure communication stability in high-load scenarios. The system supports voice, SMS, and data transmission, and provides professional user packages (such as 200 yuan per month for 50 minutes of calls).

Device compatibility: Supports integration with vehicle-mounted terminals, walkie-talkies, mobile phones and other devices. For example, the car SOS system can automatically call the emergency department and transmit vehicle location and status information.

Application scenarios

natural disaster relief: In scenarios such as earthquakes, floods, and landslides, one-click SOS and intelligent positioning can quickly locate trapped people and coordinate rescue resources. For example, during the grassland fires in Inner Mongolia, China and Mongolia jointly blocked a 5-kilometer fire line to protect 75,000 acres of grassland.

Special industry protection: In explosive environments such as oil and gas fields and chemical plants, explosion-proof design ensures equipment safety. ； Provide stable communication support during polar scientific expeditions and ocean voyages.

Daily emergency scenarios: In scenarios such as vehicle breakdowns and accidents, the vehicle-mounted SOS system automatically calls for rescue and transmits vehicle location information to improve travel safety.

Dingjian Tiantong satellite handheld terminal uses the core function of "one-click SOS + intelligent positioning" and combines the full-area coverage and extreme environmental adaptability of the Tiantong satellite system to achieve full-process closed-loop guarantee from risk warning, rapid positioning to rescue and disposal. It has become the "lifeline" in scenarios such as emergency rescue, ocean communications, and remote area communications, significantly improving rescue efficiency and success rate.

Dingjian focuses on the R&D, production and sales of three-proof communication products such as single Beidou handheld terminals, Beidou short message terminals, RTK high-precision positioning terminals, single Beidou explosion-proof intercom terminals, explosion-proof mobile phones, anti-confidential mobile phones, 5G single Beidou law enforcement recorders, satellite communication phones, etc. It supports customized Hongmeng systems, secondary development, and provides one-stop communication equipment application solutions.