The World Cup in Brazil is in full swing. The national teams are stepping up their training in order to achieve good results. However, in such a tense atmosphere, there has been a thing that makes people laugh and laugh on the training ground of the French team. A fan could not watch the game, so he took an unmanned aerial vehicle and flew over the French training ground to take a sneak shot. This incident was reported by major media and was accompanied by speculative aircraft photos. This type of aircraft is called a quadrotor helicopter. It is typically characterized by four propeller-equipped electric motors at the four vertices of the cruciform fixed shaft. It can hover, roll, yaw and move up and down and left and right in the air like a raft. Wait for the action.
Quadrotor helicopters have several advantages over traditional remote helicopters of similar size. First, quadrotor helicopters do not require mechanical linkages to change the tilt angle of the propeller as it rotates, which simplifies design and helicopter maintenance. Second, the four motors are configured in such a way that each propeller has a smaller diameter than a single propeller of a conventional RC helicopter (excluding the tail rotor), thereby reducing the kinetic energy generated during flight. This can reduce damage when the helicopter hits other objects. For small remote-controlled aircraft, a smaller propeller diameter means safer flight at close range. Some small quadrotor helicopters add a protective cover to the propeller, allowing it to fly in more complex environments while reducing the risk of damage to surrounding objects.
A quadrotor helicopter is actually a remotely piloted aircraft controlled by an embedded system. Its hardware system includes the body and remote control. The main components of the fuselage are processor, XY axis gyroscope, Z-axis gyroscope, XYZ axis accelerometer, RF communication module and four motors. The software uses an RTOS real-time operating system such as uc/OS-II. During the flight, the CPU receives the flight command from the controller, and simultaneously reads the measurement results of the gyroscope and the accelerometer, and then sends a signal to adjust the rotation speed of the motor, so that the helicopter can fly according to the operator's wishes.
In order for the entire system to work properly, the processor must constantly communicate with peripheral devices to collect data and issue commands. In the quadrotor helicopter solution, the analog signal output of the gyroscope is connected to the analog-to-digital converter of the processor, the RF communication module is connected to the processor via the SPI bus, and the three-axis accelerometer communicates with the processor via the IIC bus. These communication functions need to be considered during the development process. The FRDM-KL05Z (top) and FRDM-KL25Z (bottom) development boards from Infineon Technologies are based on Freescale's KineTIs L-series microcontrollers. The KineTIs L-series microcontrollers feature the ARM Cortex-M0+ core, which is energy efficient and high performance. It integrates the SPI and IIC buses and the MMA8451Q three-axis accelerometer and AD converter to perfectly meet the development requirements of quad-rotor helicopters. The two development boards based on this family of microcontrollers are small enough to be suitable for overall weight-sensitive development projects such as quadrotor helicopters. In addition, the FRDM-KL05Z and FRDM-KL25Z development boards also provide an extended interface compatible with Arduino, providing the greatest possibility for the development of additional functions. At the same time, the company has a professional technical team and deep embedded development experience, able to provide designers with comprehensive technical support and software resources. With hardware, software and technical support, the FRDM-KL05Z and FRDM-KL25Z development boards are not only suitable for the development of quadrotor helicopters, but also for small electrical, gaming accessories, portable medical devices, audio systems, smart meters, lighting and Demand for applications such as power control.
About Inch Corporation
Shenzhen Yingyite Technology Co., Ltd. is a subsidiary company of the UK listed company Premier Farnell Group (Asia Pacific Region), which is a wholly-owned subsidiary of the company. The company was originally established in early 2000 and is headquartered in Shenzhen.
As a global provider of embedded hardware and software services, Infineon specializes in providing embedded development engineers with easy-to-use development tools, reference design platforms, and production-ready product solutions to help customers reduce time to market. Improve product quality and reduce product cost, making electronic product development more economical, faster and more reliable. The company's products and services include embedded development tools, reference design platforms, ARM teaching platforms, embedded control single board machines, development software, custom design and production, and a variety of end product solutions for a wide range of applications.
Wireless Fence,Wireless Dog Collar,Wireless Dog Fence,Wireless Electric Dog Fence
Elite-tek Electronics Ltd , https://www.aetertek.ca