On November 20, 2023, the drone satellite communication system developed by the company passed the acceptance inspection organized by a leading domestic drone host organization. The technical state of the product is ready for delivery. According to the arrangements of the main engine institute, the next step will be to carry out installation and flight tests.
UAV satellite communication system uses Ku-band communication satellites for long-distance transmission of data, video and remote control commands. Among them, the ground → satellite → UAV link is the forward link, used to transmit remote control instructions; the UAV → satellite → ground link is the reverse link, used to transmit video, telemetry data, business data, etc. The data transmission rate of the reverse link from the drone to the ground can reach 8Mbps, and the data transmission rate of the forward link from the ground to the drone can reach 256Kbps.
The topology diagram of the UAV satellite communication system is as follows:
UAV satellite communication system includes airborne satellite communication terminal (SADT) and ground satellite communication station (SGDT). The airborne satellite communication terminal is installed on the UAV platform, and the ground satellite communication station is installed on the ground.
The UAV satellite communication system delivered during this acceptance is "3 stations and 6 machines", including 6 sets of airborne satellite communication equipment and 3 sets of ground satellite communication stations. In actual operations, a set of ground satellite communication stations can communicate two-way with the airborne satellite communication equipment on two drones at the same time.
Airborne satellite communication equipment includes airborne 0.8m in-motion communication antenna, airborne communication terminal and power amplifier BUC, etc.
The ground satellite communication station includes a 2.4m static-in-the-air antenna, a ground shelter and cabinets in the shelter, various satellite communications equipment, network communication equipment, power supplies, seats and other equipment.
The UAV satellite communication system delivered during this acceptance is a mature product developed by the company. The system began project development in 2017 and has gone through the planning stage, engineering prototype stage, and identification stage. The entire system will complete technical status appraisal in 2022.
From 2018 to 2022, the UAV satellite communication system was mounted on a certain UAV platform to complete flight missions in many areas of the country, including Tibet, Xinjiang, Ningxia, Inner Mongolia, Henan, Hubei, Zhejiang and other places.
UAV satellite communication system achieves stable and effective transmission of video, images, and data in complex and harsh application environments such as "large maneuvers, long endurance, low temperature, high altitude, and low pressure" of aircraft.
The drone uses satellite communications equipment as a communication link and has accumulated more than 500 hours of flight time.
The UAV satellite communication system is equipped with ground link monitoring software, which is used to monitor the working status of UAV satellite communication equipment, line-of-sight data link equipment and link working status, and complete link control and equipment management. Through manual intervention or Automatic control enables stable, reliable, high-speed two-way communication between the drone and the ground station.
The software interface is simple and can be adapted according to the number of real-time online aircraft.
Beijing Zhongke Zhongwei Technology Co., Ltd. is an enterprise specializing in the research and development, production and technical services of satellite communications, communication data links and Beidou navigation products. Founded in 2015, the company is a national high-tech enterprise with weapons and equipment quality management system certification and GB/T 9001 certification.
The company has a stable technical team, good operating mechanism and R&D conditions. The company has made a lot of investment in the miniaturization of satellite communication antennas and the design of software that effectively resists helicopter rotor occlusion, and has developed a multi-system integrated satellite communication system with independent intellectual property rights based on helicopter satellite communications, which is suitable for airborne, Shipboard, vehicle and other application environments.