69novels Chapter 298 Drone
Chapter 298 Drone
"The fuselage is made of composite materials, which are light and strong."
"The rotor uses carbon fiber propellers, which are wrapped with a layer of sound insulation cotton, making it quieter and longer-lasting."
"The power is a brushless motor, which has high speed, high torque and high efficiency."
The pen tip quickly moved across the drawing, and ideas gradually took shape on the design.
In just half an hour, the sketch of a brand new quadcopter drone has appeared on paper!
Li Yang raised his head and looked out the window, his eyes shining.
In his mind, he had already seen this revolutionary aircraft soaring freely on the battlefield of the future!
But then, a realistic problem came to mind: chips!
That’s right, powerful computing power is essential to drive so many sensors and actuators.
In this era, chip manufacturing processes and system architecture are still very backward.
But Li Yang is no ordinary person. With the successful experience of the third generation of computers, he is confident that he can overcome this problem!
At this moment, he immediately devoted himself to the design of the chip.
The first is the flight control chip, which is the "brain" of the drone and integrates many functions such as attitude sensors, navigation algorithms, and servo drives.
Li Yang decided to use the ARM core, plus DSP and FPGA modules, to create a highly heterogeneous chip architecture.
With a main frequency of 200MHz, integrated SRAM, and 4MB FLASH, the performance is sufficient to cope with real-time control in complex environments.
Next is the image transmission chip. For high definition and low latency, Li Yang chose the 5.8GHz microwave frequency band.
Adopting self-developed OFDM modulation algorithm and directional gain antenna, the transmission is fast and stable?1?8
Li Yang also has his own unique ideas in designing the power chip.
The permanent magnet synchronous motor is equipped with a vector control algorithm and a constant power control circuit, which enables high flight efficiency and long endurance.
There are also special chips for power management, data bus, inertial navigation, etc., which form a sophisticated electronic system in this small body.
Ten days later, when the last line of code was finalized, Li Yang breathed a sigh of relief.
On the table, a stack of brand new chip drawings were neatly arranged.
Every drawing embodies his wisdom and hard work.
From architecture design to layout drawing, from device selection to packaging process, his shadow is everywhere.
Looking at these "mini brains", a confident smile appeared on Li Yang's lips.
With the support of advanced chips, Li Yang couldn't wait to start making drones.
He decided to start with the fuselage frame and use carbon fiber composite materials.
This material is lightweight and high-strength, and has long been widely used in the aerospace field. It is the most advanced material of this era.
Li Yang applied for a batch of carbon fiber cloth and epoxy resin.
Mix them according to the proportions and then solidify them in a mold to form thin and tough carbon fiber panels.
Then, Li Yang began to cut, polish and splice by hand.
First, cut out large structural parts such as the fuselage and arms according to the dimensions of the drawing and glue them together with epoxy glue.
An oval-shaped body shell gradually took shape, with a smooth surface and no seams.
Li Yang also installed a cross-shaped load-bearing beam inside the fuselage, greatly enhancing the structural strength.
Four arms extend diagonally, each end of which is connected to a motor base.
Li Yang picked up the gimbal camera and carefully installed it on the front of the camera body, adjusting the angle and balance.
Two hours later, the skeleton of a bare-metal quadcopter drone finally took shape.
It lay quietly in front of Li Yang, light, delicate, and full of technology.
Looking at this "newborn baby", Li Yang's face was full of love, as if he was looking at his own child.
But he knew that this was just an empty shell. To become a real drone, it needed a "heart" and "blood"?1?8
So, Li Yang started to wind the motor by hand.
The stators and rotors are all made of special alloys, and the windings and magnetic steel are also specially made.
In order to increase power density, he wound the enameled wire as tightly as possible to fill every inch of gap?1?8
Then, assemble the motor and carefully place it on the seat at the end of the arm.
One by one, the electric regulators and batteries are also connected to the entire power system?1?8
When it comes to the most critical flight control, image transmission, and navigation system? 1? 8
Li Yang put all his efforts into it?1?8
He first soldered the small chips onto the PCB and meticulously connected each flying wire.
IMU, GPS, barometer, ultrasonic, and other sensors were assembled and debugged one by one.
Then came the production of the wiring harness and adapter board. Li Yang was busy all day and night without even closing his eyes.
When the last harness was tied and the system was debugged, a drone with a complete "body" was finally born!
It lay quietly on the experimental table, its streamlined body glowing with an obsidian-like luster.
The propeller is slender and powerful, ready to strike like a sword.
The gimbal camera looks around alertly, as if ready to take off at any time.
The most amazing thing is the interior of the fuselage.
Densely packed electronic devices are arranged in an orderly manner.
Power modules, processors, memory, sensors... form an extremely complex and sophisticated system.
They are interwoven into a huge "neural network" through colorful strands, like a beating "heart"?1?8
Looking at this unprecedented masterpiece, Li Yang was filled with mixed emotions.
In this era of material scarcity and industrial backwardness, he managed to create a "futuristic" aircraft on his own.
And this is just the beginning.
In the future, with the support of the third-generation chip, drone technology will surely flourish in this land!
Thinking of this, Li Yang could no longer suppress his excitement.
He carefully picked up the drone and went to the open space outside.
But in his arms, is a high-tech product that will revolutionize the times.
This strong contrast seems like a lifetime ago.
Li Yang took a deep breath, turned on the remote control, and pushed the accelerator.
Boom! The four propellers rotated at high speed, making a low roar.
The drone suddenly took off into the air and hovered steadily in the air.
Li Yang pushed the joystick tentatively, and the drone changed its posture flexibly, up and down, left and right, as if it were an arm.
Step on the accelerator, and it rushes out quickly and far away, circling and dancing like a happy little bird.
Li Yang was so excited that he tried out various stunts without hesitation.
The drone sometimes tilts and flies rapidly, sometimes stops suddenly and hovers in the air; sometimes it takes off and lands vertically, and sometimes it flies over eaves and walls.
Li Yang excitedly controlled the remote control, and the drone flew flexibly in the air, like a cheerful little bird, flying freely under the blue sky and white clouds.
He changed his posture and altitude from time to time to test the maneuverability and stability of the drone.
The drone suddenly accelerated, rushed out a long distance at an astonishing speed, drew a smooth arc in the air, and then suddenly stopped in mid-air, hovering steadily in the air.
Sometimes it takes off and lands vertically, with its propeller creating a whirlwind that blows up the dust on the ground; sometimes it flies close to the ground, with its fuselage almost touching the tips of the grass, demonstrating its extraordinary ground-effect flight capabilities.
Li Yang kept a close eye on the drone's every move and became more and more proficient in controlling it.
The flight mode changes from time to time, sometimes hovering at a fixed point, sometimes flying in circles; sometimes performing aerobatics, rolling, turning, climbing, diving... There are many different modes, one after another.
The drone performed every action perfectly, with amazing stability and flexibility! Even on windy days, it remained motionless and hovered steadily.
The one-hour flight test passed in a flash, but Li Yang enjoyed it.
He began to conduct some extreme tests to explore the performance boundaries of the drone.
Maximum speed, maximum climb rate, longest range... he recorded each data in detail.
Li Yang nodded with satisfaction, secretly happy.
The overall performance of this drone has completely exceeded his expectations. Whether it is the power system, flight control system, or remote control system, every link is perfect.
What excites him even more is that drones show great potential for improvement.
At present, this is just a basic flying platform. If targeted modifications are made on this basis, I believe the performance can be further improved!
"What an epoch-making, cutting-edge product!" Li Yang exclaimed, unable to hide the excitement on his face.
For a scientific researcher, nothing is more exciting than having his or her work exceed expectations.
He couldn't wait to bring the drone back to the laboratory, placed it carefully, and began the next step of work - expanding the functions of the drone according to military needs.
As a military fan, Li Yang has already had a grand blueprint for the widespread application of drones in the military field in the future.
If you want to do your work well, you must first sharpen your tools. With the third-generation chip as a powerful tool, plus his understanding of future technology, how far can this blueprint be from realization?
At this moment, Li Yang immediately plunged into a new round of design.
He decided to start with the reconnaissance function and equip the drone with an advanced optoelectronic pod.
This optoelectronic system includes multiple sensors such as infrared thermal imagers, low-light televisions, and laser rangefinders.
It can search, track and locate targets around the clock, during the day, at night and under complex weather conditions.
Li Yang was drawing the circuit diagram while thinking about it with great interest.
"With this set of reconnaissance equipment, drones can perform a variety of tasks on the battlefield, such as wide-area reconnaissance, fortress anti-spying, battlefield surveillance, etc., greatly improving the situational awareness of the troops!"
I saw that he first designed an independent image processing chip.
With independent DRAM cache and FLASH storage, ultra-high-resolution real-time image processing can be achieved.
Then, he selected an ultra-high sensitivity CMOS sensor, which, combined with a large aperture lens, can easily achieve all-weather imaging during the day and at night.
To improve image stability, he also equipped the camera with a multi-axis 3D gimbal with independent servo systems that can achieve precise pitch, translation, and roll movements.
Finally, Li Yang carefully assembled these high-tech components into a small pod, filled it with shock-absorbing material, and then fixed the pod under the belly of the drone.
When the last screw was tightened, Li Yang breathed a sigh of relief and a satisfied smile appeared on his face.
This advanced optoelectronic pod is a unique weapon in this era!
With it, the military value of drones will surely be further improved!