Article directory
Preface
！Note
The glossary is not indexed. The glossary is arranged alphabetically, so just scroll down to find the topic of interest.
1 2.4Ghz
2.4Ghz : The frequency used by digital (spread spectrum) radio communications in our applications, including 2.4Ghz remote control, Bluetooth and some video transmission equipment. This band is different from the older 72Mhz band used for analog remote control communications. To avoid radio frequency conflicts, it is best to use 72Mhz radio equipment when using 2.4Ghz airborne video transmitters and 900Mhz video equipment when using 2.4Ghz remote control
2 AGL
AGL : Height from the ground.
3 AHRS
AHRS : Attitude Heading Reference System. An IMU (see below) plus code for interpreting the sensor output to determine the aircraft's XYZ and heading.
4 APM
APM： ArduPilotMega。
5 OR
AMA : Academy of Model Aviation. The major model aircraft association in the United States. The Model Aircraft Association of America works closely with the Federal Aviation Administration ( FAA ) to develop reasonable rules for the use of amateur drones . Policies may vary slightly at each NAAA chapter and venue, butframes and certain technologies may be flown and tested at NAAA venues provided they do not violate association (or FAA/NAS ) regulations.
6 Arduino
Arduino : An open source embedded processor project. Including the currenthardware standards and necessary supporting hardware based on Atmel Atmega168 microprocessor, as well as a software programming environment based on C- like language Processing . The official website is here .
7 APM (AutoPilot Mega)
APM (AutoPilot Mega) : The autopilot provides stable flight, position maintenance and automatic mission (waypoint) path tracking functions.
8 ATC
ATC : This may bein Copter whose parameters begin with " ATC_ ", or it may refer to air traffic control. Typically located in an airport control tower, but can also bean app or service such as AirMap or Altitude Angel .
9 Copter
Copter : A rotary-wing autopilot software variantof the ArduPilot project.
10 Plane
Plane : A fixed-wing autonomous software variantof the ArduPilot project.
11 Rover
Rover : Ground and water autonomous driving software variantof the ArduPilot project.
12 BEC
BEC : Battery Elimination Circuit. Voltage regulators can be used with ESCs (see below) or as stand-alone products. Designed to provide a constant 5V voltage for remote control equipment, autopilots and other onboard electronic equipment .
13 Bootloader
Bootloader : Special software code stored in the microprocessor's non-volatile memory that can be connected to a personal computer to download user programs. See also " firmware ".
14 COA
COA : Certificate of Authorization. FAA approval for drone flights. Please check the faa.gov website and the DIY Drones Regulatory FAQ for.
15 DCM
DCM : Directional cosine matrix. This is an algorithm equivalent to the Kalman filter, with a smaller processing load. See here ( this ) for more information.
16 Eagle file
Eagle file : Schematic and PCB design files (and related files that tell the PCB factory how to make the board)by the free Cadsoft Eagle program. This is the most commonly used standard in the world of open source hardware, but ironically, it is not itself open source software. Needless to say, this is not the best option, and the Eagle software is clunky and difficult to learn. We hope that one day an open source alternative will emerge.
17 ESC
ESC : Electronic Speed Controller. A device for controlling electric aircraft motors. Serves as the connection between the main battery and the remote control receiver. Typically includes a BEC or battery elimination circuit to provide power to the remote control system and other onboard electronics such as the autopilot .
18 Firmware
Firmware : Software or sketches loaded into the non-volatile memory of a microprocessor-based product. It's called " firmware " because it remains in non-volatile memory even when power is removed, and is therefore " non- volatile". In the case of Autopilot, the " program " or app (the smartphone user's application) determineswhat and how the Autopilot works.
19 FPV
FPV : First person perspective. This is a technology that uses onboard cameras and wireless connections to the ground to allow pilots on the ground to see what's going on in the cockpit through video goggles.
20 FTDI
FTDI : A standard for converting USB to serial communications. Can be used as a chip on a circuit board with a USB interface, or as an adapter connected to pigtail pins. FTDI is the abbreviation of Future Technology Devices International and is also the name of the company that produces chips.