Scientific article about RC

/0 Comments/in /by

 

1.Definition of RC

The RC is short for Remote control or Radio control, which translates to: remote-controlled or radio-controlled. The scope of RC involvement is very broad.

The RC Car looks very similar to the remote control car that kids play with, but it’s actually two things. Toy remote control car speed is slow, the cost is also relatively cheap, and RC can be said to be a reduced version of high-speed racing car, the main characteristics are fast speed, high price, in foreign countries is a kind of sports, characterized by racing type of racing car. Although the body size is reduced in proportion to the actual car, the actual performance is not reduced. The application scenery is for racing champion. Because of the RC reason, the user needs to have a certain ability to replace parts.

 

2.Classification of RC Car

According to the different engine can be divided into electric remote control car and oil moving remote control car.

According to the different scene of use, it can be divided into flat running, off-road, big foot, racing truck, climbing, etc.

Big foot: it means a car with very large tires.

Short card: changed by the trophy truck in baja1000 events as the prototype, the chassis structure generally adopts two different structural models: front and rear straight bridge and front and rear independent suspension.

Climbing: Usually crossing obstacles or climbing for cool results, climbing cars as a power player usually use large distances and low speeds, but this does not affect its speed.

Classification by proportion

It can be divided into 1:16, 1:14, 1:12, 1:10, 1:8, 1:5

 

3.Complete composition system of RC

A complete RC system requires a frame, remote control system, power and steering system. The remote control system consists of the remote control and the receiver. The current mainstream remote control technology is 2.4G frequency band, the remote control system is a cost of a large part of the whole equipment.

The power system consists of a power battery, a motor and an electric adjustment. A motor is a motor driven by electric power. Professional RC remote control car body components are less than 50, more than hundreds, the body design also has more professional, each car has a complete modified parts market.

 

Scientific article about FPV

/0 Comments/in /by

Since ancient times, human beings have an infinite yearning for the sky. FPV allows people to see the grandeur and beauty of the sky immediately while standing on the earth. The viewing and use of FPV are very interesting, and the stimulation brought by high speed often makes people feel excited.

The components of FPV are complex for novice, but today let’s introduce it briefly in the simplest language.Let’s begin!

 

1.Frame

The FPV frame is a very important part of the aircraft, all the components will be formed above it, the frame should always maintain a light weight, too heavy model is stable but may lead to poor flight. The frame needs to be kept light weight, firm, and highly rigid. For the body material will usually choose plastic and carbon fiber, and the carbon fiber frame is always the optimal option. The following elements should be considered while selecting the framework:

  • Frame shape: There are several different frame shapes available, such as X design, H design, hybrid X, box shape, etc. Each of them has a different performance statistics. For example, the X frame is perfect for FPV racing, while the H frame is better for freestyle flight
  • Frame dimensions: The frame sizes range from 90 mm to over 280 mm. Therefore, it is important to choose the right sized frame because it affects the weight and performance of the UAV.
  • Component spacing: It is important to check the frame for sufficient spacing for supports, flight controllers, camera supports, etc

 

 

2.ESC

The full name of ESC is electronic speed controller, also known as ESC, the role of ESC is mainly to control the machine start-stop and speed some ESC can be used to power the receiver. For different motors, ESCs are classified as brush ESCs and brushless ESCs. A brush ESC is simply a DC output, while a brushless ESC is to convert DC power to AC power, the input of ESC is DC, can be connected to regulated power supply or lithium battery.

Matching principle: the output current of ESC must be greater than the output current of the motor, and the output current of the battery should be greater than the output current of the motor.

 

 

3.Flying control

Flight control is a control system that can stabilize the posture of the FPV aircraft and control the semi-automatic flight or fully automatic flight of the FPV. Flight control can be seen as the brain of the drone. It sends signals to the motor to run in a specific manner. The FC contains algorithms executed thousands of times per second to keep your drone in the air. They also have sensors such as gyroscopes and accelerometers. There are multiple options for flight controllers. A flight controller with a built-in PDB (distribution board). FC with an integrated PDB are better because they minimize the wiring and welding required.

 

 

4.Generator

Having a high-quality motor can play an important role. The motor rotates the propeller and generates thrust for the drone to fly. You will need four brushless outer rotor motors to build the FPV racing drone.

Motors are divided into two categories: high stator and wide stator. The stator of the motor is the shell of 14 permanent magnets containing the motor. Simply put, the higher the stator, the higher the speed is. The wider the stator, the greater the torque that is generated. Therefore, high stator motors is an ideal choice for racing drones. Brushless motor is the use of semiconductor switching devices to achieve electronic steering, the commonly used motor is 2204 2300KV motor,the first two number are the stator outer diameter（mm）, the last two are the stator height（mm）The larger the outer diameter and height of the stator, the higher the power of the stator and, at the same time, the heavier it will be. 2300 means the speed at 1V, each increase of 1 rpm increases 2300 rpm

 

 

5. Screw propeller

Most propellers today are made of polycarbonate plastic. This makes them very durable. You can see many sizes of propellers on the market, such as 7045,8045,9045,1045, etc. The last two numbers represent the pitch of the propeller, and the first two represent the diameter of the propeller. Take 7045 as an example, 45 means the pitch of this propeller is 4.5 inches, 70 means the diameter size of this propeller is 7.0 inches.

 

 

6.Picture transfer

Picture transfer is divided into analog and digital picture transfer. Analog picture transmission is the source and channel processing of analog image signals that vary continuously in time and amplitude.

Digital picture transmission means that the digitized image signal is encoded by the information source and channel, and transmitted through microwave, optical fiber, etc.

 

7.Battery

Battery S Number：FPV is usually connected by several independent cells in series, 3S means that the battery is connected by 3 cells in parallel together. Different crossing machines need different S number of batteries

mAh：Means the battery capacity.

Battery C number: indicates the discharge rate of the battery, when you need more power, you need to choose a larger C number of the battery. Take 1500 mAh 4s battery as an example, then the total voltage of the battery pack at this time is 4 x 3.7 = 14.8 (standard voltage)

Scientific article about Agricultural

/0 Comments/in /by

Application of Drone Technology in Crop Fertilization

1.Introduction

An industry of value, Agriculture sets the livelihood of 65% of the population of India, directly or indirectly. Heightening this growth factor has become ever-so-crucial to generate more revenue, income, and employment. The dynamic and speedy nature of technology brings convenience and advancement to its applied industries. Drone technology and the use of Unmanned Aerial Vehicles (UAVs) in such applications has brought about incremental progress, saving time and cost.

As a part of the agricultural industry, drones are being employed for various operations in aerial surveillance, mapping, land inspection, monitoring, spraying fertilizers, checking for diseased or rotting crops, and much more. The diverse kinds of drones are being tested to determine the most creative space in agriculture, horticulture, and farming. For crop fertilization, drones such as quadcopters prove to be the most favorable owing to their multi-rotors. Fixed-wing drones suit the purpose of crop fertilization, albeit their large structure requiring a large space for take-off and landing comes in the way.

 

2.Fertilizer Spraying

One of the most critical uses of drones in agriculture is its flexibility to move around in swift motions and maneuver to the destined locations. This ability of drones helps spray fertilizers and insecticides to nurture crops and provide them with the needed nutrients. Such reinforcements allow crops to be healthy and flourishing. The drone operators are free to monitor the drone spraying fertilizers that keep insects, pests, and worms away and increase crop life longevity.

 

3.Soil Health Monitoring

The robust capabilities of drones help in the primitive operation of analyzing soil health. In essence, UAVs collect and process data received from monitoring that can help check, control, and maintain the soil’s health and nature. Drone technology can also provide the essential nutrients to the soil to improve their health and well-being. Through its operations of 3D mapping and data processing, drones achieve this operation of analyzing soil health.

 

4.Seeding Process

By its virtue, agriculture is a highly cumbersome and exhaustive industry because it requires skillful abilities to perform its operations. Seeding, especially, requires manual labor as it is a time-consuming procedure. To ease this tiring process, drone technology is employed to sow the seeds of copious varieties of crops. As instilled in drones, the lasers, sensors, tanks, etc., allow them to quickly yet smoothly plant seeds.

 

5.Analyzing Deficiencies

Another incredible merit of adopting drones for crop fertilization comes with their feature to analyze, identify, and survey the crops for any deficiencies. Their high-resolution cameras and sensors, additionally instilled with lasers, help to perform these operations quickly. Unmanned Aerial Vehicles can also map these deficiencies in real-time, and the data collected and processed can be used to make further determinations regarding the crops.

 

6.Drones For Crop Fertilization

In its entirety, drones and their applications have helped ease the cumbersome process attributed to crop fertilization. Their enterprising and potent nature helps farmers a great deal with bountiful tasks and operations.

Scientific article about Battery&Charger

/0 Comments/in /by

Extend Battery Life —— 4 Tips You Must Know !

1. Charge the battery after finishing the battery capacity.

If used properly, nickel-cadmium batteries can be used hundreds of times, but proper management is the key to maintaining its performance. First of all, it is important to charge the battery after use. Repeated charging and using half of the battery will gradually cause the battery voltage to drop faster, and even after charging, you can’t drive satisfactorily (this is called the memory effect). The basic way to prevent this is to stop driving and charge after a while, because the remote control car ‘s running speed drops sharply when the battery is consumed to a certain extent. If you want to better extend the life of the battery, you can choose to moderately discharge after using the battery, and wait for the battery to stabilize internally before charging, so as to keep the battery in a better condition.

 

2.Do not charge and discharge the battery for a short period of time.

Continuous use will shorten the battery life of nickel-cadmium battery life will be affected in repeated and rapid use, reduce the battery service life. Reuse in a very short time, if the battery power is used up and charged immediately after driving, this practice may damage the battery. If you need to practice on the track all day, you may have to charge the battery on site, but in the sense of extending the battery life, it is best to avoid making multiple uses in a day.

 

3.Choose the adequate charger for your battery.

Battery Chargers There are two types of chargers used to drive the battery: an AC using a home socket and a DC using a 12V car battery as a power source. Sometimes the battery comes with a standard charger, but the time it takes to charge with this charger is quite long, so if you really want to enjoy an electric remote control car, we recommend using a quick charger. The charging time of a fast charger depends on the battery capacity.

 

4.Be sure to compare the battery model carefully when buying the charger.

The compatible battery varies depending on the charger model, such as supporting only Ni-Cd or Ni-Cd & Ni-MH compatibility. When purchasing a charger, be sure to check the battery that the charger can match.