Chapter 610: Drone R&D Center!

After reading the book, the address of [Wanbenshen Station]: Avoid the pain of chasing books!

Yang Jie knows that high-precision and high-reliability gyroscopes will bring high-performance flight quality, high-precision positioning and reconnaissance and strike capabilities to UAVs, which is also one of the core technologies of UAVs, and the R&D center naturally needs to use the gyroscopes with the highest precision.

In terms of accuracy, the company is world-class at this stage.

Before the acquisition of Shengsinuo company Huaxing Group is to get high-precision micromechanical sensors, although there are also research and development in this area, but there is still a certain gap between the accuracy and experience and overseas, since the overseas in this area is very good, the acquisition is a very good way.

In recent years, Huaxing Group has successively acquired more than a dozen high-precision sensor companies in Europe.

These European sensor companies are generally not large, but these companies have been constantly developing in their own technical fields, with decades of experience, and can be acquired and absorbed into the system of Huaxing Group to provide high-quality sensors for various products of Huaxing Group, which has a great effect on ensuring product quality.

MEMS gyroscopes can be used in aviation, aerospace, navigation, weapons, automobiles, biomedicine, environmental monitoring and other fields, and compared with traditional gyroscopes have obvious advantages, smaller size, lighter weight, lower cost, and high reliability, lower power consumption, very easy to digitize and intelligent.

Yang Jie will not ignore this, and acquired Norway's Saint Snow as early as possible, and at the same time, these high-precision micromechanical sensors of Saint Snow are used in a large number of products, and at the same time, Saint Snow's has also begun to enter the Chinese market.

Among them, the satellites of Huaxia Satellite Communications Co., Ltd. use high-precision gyroscopes of Shengsinuo Company, including high-precision inertial navigation gyroscopes.

Only with a high-precision gyroscope can the UAV provide the most direct data on the UAV's own posture and posture state for the flight control system, and provide a reliable guarantee for the autonomous flight of the UAV in a complex environment.

The UAV flight control system is the core of the core, mainly used for flight attitude control and navigation, for the flight control, first of all, we must know that the aircraft is currently in a total of more than ten states, because the aircraft itself is an unstable system, to the power of each motor = rotor system and flight rudder surface to carry out ultra-high frequency continuous adjustment and power distribution, in order to achieve stability and flight, even if let go of the joystick to let the aircraft fly autonomously, the flight controller is required to continuously monitor these more than ten states, and carry out a series of "cascade control" in order to achieve stable flight.

This seems very simple to ordinary people, but the operation in the flight control system is actually very complicated, even if the drone has high-precision sensors, but in actual flight, the data measured by these sensors will produce certain errors, and may be disturbed by the environment, thus affecting the accuracy of state estimation.

In order to ensure flight performance, it is necessary to make full use of the data of each sensor to fuse more than 10 states of the aircraft with high reliability to obtain more accurate state measurements, also known as integrated navigation technology.

Moreover, the Institute of Artificial Intelligence of Meixihu University has also undertaken the research and development task of machine vision system, this system stereo vision system can calculate the three-dimensional position of the object according to continuous images, in addition to the obstacle avoidance function, it can also provide positioning and speed measurement, this system has come out of the sample, is being tested, and the leader is the research and development team led by Wu Tangen.

In order to improve the perception and flight performance of the UAV, Zhang Hong also adopted a set of artificial intelligence algorithms from Meixihu University to reconstruct the navigation and flight control algorithms systematically, adding new software modules and architectures, through simulation, this algorithm is very stable, even if multiple sensors fail, the vision system can take over GPS to provide positioning and speed measurement, so that the UAV can achieve stable flight.

This set of flight control system control algorithm for the flight and control of the UAV brings high control quality, Zhang Hong in the design of the flight control is also to take into account the aircraft loss of power, sudden impact, sudden load or other external interference after the occurrence of many extreme conditions, but also designed a certain interference compensator to approximate and compensate for various interference, improve the robustness of this closed-loop system.

The internal circulation of this flight control system is set at 60Hz, refresh 60 times in 1 second, which is close to the internal circulation speed of the fighter, and the control of the speed of the internal circulation is very tested, if the amplitude is too low, the control is not so tight, and the amplitude is too high The aircraft will shake very much.

Chief Engineer Zhang Hong has extremely rich experience in this area, and is very creative and creative, Yang Jie is quite satisfied with his design plan.

Yang Jie then also learned in detail about the research and development progress of ground station equipment.

At this time, the R&D department of the ground station also designed a prototype of the remote control operation equipment, and Yang Jie also experienced it.

The remote control equipment team transferred several engineers from the game console handle department of Aihua Technology Company, and this team leader was trained by Yang Jie before.

The team leader was also nervous when he saw Yang Jie experience it in person.

After experiencing it, Yang Jie smiled at the team leader and said, "Why are you so nervous?"

"Yang Shao, I'm afraid you're not satisfied......"

"You're the one I brought out, and I'm going to curse if I haven't designed a remote control device well after so many years. ”

Yang Jie said with a smile.

This team leader didn't dare to come out at this time.

"Okay, I'm still quite satisfied with this remote control device you designed, don't be so nervous. ”

Yang Jie laughed.

The joystick of this remote control device is very well done in terms of ergonomics and force feedback, which is of course the technical strength accumulated by Aihua Technology Company for many years of research and development of gamepads.

Hearing Yang Jie's words, the team leader exhaled.

Yang Jie then took a closer look at this data radio equipment, which uses W-band high-speed transmission technology, and will also be developed in the future to cooperate with the low-orbit high-speed communication satellite network of Huaxia Satellite Communications Company.

As long as this global communication network is completed, this UAV can operate anywhere in the world, and there is no need to establish a relay base station on the ground, which solves the problem of short transmission distance of UAV once and for all.

Huaxing Group has now made a breakthrough in this technology, and it would be too wasteful not to expand the scope of use on a large scale.

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