The flight control subsystem is the core system of the whole flight process of the drone to complete take-off, air flight, mission execution and return-to-field recovery. The flight control is equivalent to the driver's role for the manned aircraft. One of the most core technologies. The flight control generally includes three parts: the sensor, the onboard computer and the servo actuating device. The functions realized mainly include the three types of unmanned aircraft attitude stabilization and control, drone mission equipment management and emergency control.
Among them, the various sensors assembled in the fuselage (including angular rate, attitude, position, acceleration, altitude and airspeed) are the basis of the flight control system, and are the key to ensure the accuracy of aircraft control. Under different flight environments and different uses. The drone's configuration requirements for the sensor are also different. In the future, the demand for UAV situational awareness, the identification of enemy and enemy on the battlefield, and the ability of diplomatic defense in the defense zone require UAV sensors to have higher detection accuracy and higher resolution. Therefore, a large number of UAV sensors have been widely used. New technologies such as hyperspectral imaging, synthetic aperture radar, and ultra-high frequency penetration.
2, the navigation system is the "eye" of the drone, multi-technology combination is the future direction
The navigation system provides the position, speed, and flight attitude of the reference coordinate system to the drone, and guides the drone to fly according to the designated route, which is equivalent to the navigator in the man-machine system. The unmanned airborne navigation system is mainly divided into two types: non-autonomous (GPS, etc.) and autonomous (inertial guidance), but each has the disadvantage of being susceptible to interference and increased error accumulation, and the development of future drones requires obstacle avoidance, materials or The functions of weapon placement, automatic approach landing, etc. require high precision, high reliability, and high anti-interference performance. Therefore, the combination of multiple navigation technologies, "inertia + multi-sensor + GPS + photoelectric navigation system" will be the future development direction.
3, power system - turbine is expected to gradually replace the piston, new energy engine to enhance endurance
Different types of UAVs have different requirements for power units, but they all hope that the engine is small in size, low in cost, and reliable in operation: 1) The power unit widely used by drones is a piston engine, but the piston type is only suitable for low speed and low altitude. Small drones; 2) For single-use drones , suicide drones or missiles, the thrust ratio is high but the life can be short (1-2h), generally using turbojet engines; 3) low altitude unmanned helicopters Generally, a turboshaft engine is used, and a large unmanned aerial vehicle with a long-haul altitude is generally a turbofan engine (US Global Eagle weighs 12t); 4) a consumer-grade micro-UAV (multi-rotor) generally uses a battery-driven motor, take-off quality Less than 100 grams and less than one hour of battery life.
Looking forward, we believe that as the turbine engine push-to-weight ratio, life expectancy and fuel consumption decrease, the turbine will replace the piston as the main power model of the drone. New energy motors such as solar energy and hydrogen energy are also expected to be provided for small drones. More lasting viability.
4. The data link is “the line of kite flying†– the transition from a stand-alone system to a global information grid (GIG)
The data link transmission system is an important technical component of the UAV. It is responsible for completing the remote control, telemetry, tracking and sensor transmission of the UAV. The uplink data link implements the telemetry and data transmission functions for the UAV remote control and downlink data link. Ordinary drones mostly use custom line-of-sight data links, while mid-high-altitude and long-haul drones use line-of-sight and over-the-horizon data links.
The development of modern data link technology promotes the development of the UAV data link in the direction of high speed, broadband, confidentiality and anti-interference, and the practical ability of drones will become stronger and stronger. Looking forward, as the airborne sensors, the fineness of positioning, and the complexity of performing tasks continue to rise, there is a strong demand for data link loans. In the future, with the rapid advancement of airborne high-speed processors, it is expected that after several years. The transmission rate of the existing RF data link will double, and laser communication methods may appear in the future where the requirements are low in all weather.
From the development strategy of the UAV communication network developed by the United States, the data link system is being transferred from the initial IP-based transmission, multi-machine interconnection network, to the satellite network, and finally the complete global information grid (GIG) configuration transition. To provide authorized users with seamless global information resource interaction capabilities, supporting both fixed and mobile users.
Our company Ningbo Beilun Tiaoyue Machine Co., Ltd. can make kinds of spools according to customer's drawing or samples,such as steel reel,steel wire reel,steel drum.
When you need the strength and durability of a steel reel, ONEREEL has the product for you.
Whether you need a tubular reel for lightweight shipping of pipe or conduit, a custom-designed process reel for take-up and take-off solutions in heavy-duty processing industries or a corrugated steel reusable design for wire and cable applications, our line of steel reels is tailored to satisfy your unique needs.
For customer service, call 0086-13777009159(mobile) or 0086-574-26889982(telephone)
Steel Wire Spool, Steel Cable Reel, Steel Bobbin, Steel Cable Spool, Wire Spool, Cable Reel,Steel Reel,Steel Wire Reel,Steel Drum
NINGBO BEILUN TIAOYUE MACHINE CO., LTD. , https://www.spool-manufacturer.com