Paparazzi is an

open-source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized so ...

autopilot An autopilot is a system used to control the path of an aircraft, marine craft or spacecraft without requiring constant manual control by a human operator. Autopilots do not replace human operators. Instead, the autopilot assists the operator' ...

system oriented toward inexpensive

autonomous In developmental psychology and moral, political, and bioethical philosophy, autonomy, from , ''autonomos'', from αὐτο- ''auto-'' "self" and νόμος ''nomos'', "law", hence when combined understood to mean "one who gives oneself one's ow ...

aircraft. Low cost and availability enable hobbyist use in small

remotely piloted aircraft An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. UAVs are a component of an unmanned aircraft system (UAS), which includes adding a ground-based controlle ...

. The project began in 2003, and is being further developed and used at

École nationale de l'aviation civile École may refer to: * an elementary school in the French educational stages normally followed by secondary education establishments (collège and lycée) * École (river), a tributary of the Seine flowing in région Île-de-France * École, Savoi ...

(ENAC), a

French French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with Franc ...

civil aeronautics academy. Several vendors are currently producing Paparazzi autopilots and accessories.

Overview

An autopilot allows a remotely piloted aircraft to be flown out of sight. All hardware and software is

and freely available to anyone under the

GNU GNU () is an extensive collection of free software (383 packages as of January 2022), which can be used as an operating system or can be used in parts with other operating systems. The use of the completed GNU tools led to the family of operat ...

licensing agreement. Open Source autopilots provide flexible hardware and software. Users can easily modify the autopilot based on their own special requirements, such as forest fire evaluation. Paparazzi collaborators share ideas and information using the same

MediaWiki MediaWiki is a free and open-source wiki software. It is used on Wikipedia and almost all other Wikimedia websites, including Wiktionary, Wikimedia Commons and Wikidata; these sites define a large part of the requirement set for Media ...

software that is used by

Wikipedia Wikipedia is a multilingual free online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and using a wiki-based editing system. Wikipedia is the largest and most-read refer ...

. Paparazzi accepts commands and sensor data, and adjusts flight controls accordingly. For example, a command might be to climb at a certain rate, and paparazzi will adjust power and/or control surfaces. As of 2010 paparazzi did not have a good speed hold and changing function, because no air speed sensor reading is considered by the controller.

Delft University of Technology Delft University of Technology ( nl, Technische Universiteit Delft), also known as TU Delft, is the oldest and largest Dutch public technical university, located in Delft, Netherlands. As of 2022 it is ranked by QS World University Rankings among ...

released its Lisa/S chip project in 2013 which is based on Paparazzi.

Mechanisms

Hardware

Paparazzi supports for multiple hardware designs, including STM32 and

LPC2100 LPC is a family of 32-bit microcontroller integrated circuits by NXP Semiconductors (formerly Philips Semiconductors). The LPC chips are grouped into related series that are based around the same 32-bit ARM processor core, such as the Cortex-M4F ...

series

microcontroller A microcontroller (MCU for ''microcontroller unit'', often also MC, UC, or μC) is a small computer on a single VLSI integrated circuit (IC) chip. A microcontroller contains one or more CPUs ( processor cores) along with memory and programmabl ...

s. A number of

CAD Computer-aided design (CAD) is the use of computers (or ) to aid in the creation, modification, analysis, or optimization of a design. This software is used to increase the productivity of the designer, improve the quality of design, improve c ...

files have been released. Paparazzi provides for a minimum set of flight sensors: *

Attitude Attitude may refer to: Philosophy and psychology * Attitude (psychology), an individual's predisposed state of mind regarding a value * Metaphysics of presence * Propositional attitude, a relational mental state connecting a person to a propo ...

(orientation about center of mass) estimation is done with a set of infrared

thermopile A thermopile is an electronic device that converts thermal energy into electrical energy. It is composed of several thermocouples connected usually in series or, less commonly, in parallel. Such a device works on the principle of the thermoele ...

s. *Position and altitude are obtained from a standard

GPS The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite sy ...

receiver. *Roll rate measurement may be input from an optional gyroscope. *Acceleration from optional inertial sensors. *Direction from optional magnetic sensors.

Software

The open-source software suite "contains everything" to let "airborne system fly reliably".

References

External links

Paparazzi Project
* ttps://events.ccc.de/congress/2007/Fahrplan/attachments/1033_paparazzi.pdf Build your own UAVbr>Paparazzi User ManualOSAM (Open Source Autonomous Multiple-Unmanned Aerial Vehicle) at Utah State University(Open Source Drone Projects)
Avionics Aircraft instruments Unmanned aerial vehicles Free software Open-source hardware {{Component-aircraft-stub