U-Ground User Manual - Table of Contents 1 General System Introduction..............................................................................................3 1.1 Concept of system operation......................................................................................4 2 U-Ground.............................................................................................................................5 2.1 U-Ground and U-Ground OEM............................................................
U-Ground User Manual - General System Introduction 1 General System Introduction Airelectronics has developed a complete solution for both rotary and fixed wing UAVs. The system is composed of: • U-Pilot or U-Pilot OEM • U-Ground or U-Ground OEM • U-See Software U-Pilot manages and controls the vehicle from Take-off to Landing, being capable of controlling any kind of aircraft including fixed wing, helicopters and multicopters.
U-Ground User Manual - General System Introduction U-See software is a user friendly program that runs in any personal computer running Windows or Linux. Using U-See, the UAV operator can monitor the current state of the vehicle, control the UAV or modify the vehicle mission in real time. 1.1 Concept of system operation The system consists of an U-Pilot installed on an aircraft connected to a U-Ground through a radio link.
U-Ground User Manual - U-Ground 2 U-Ground The U-Ground hardware is the link between our U-Pilot and the computer running U-See that finally controls the mission. U-Ground hardware relays the data it receives from the U-Pilot through a serial RS-232 interface. This data is processed in U-See running on a standard PC which should have a RS232 port available (We include a USB to RS-232 converter in the installation kit).
U-Ground User Manual - U-Ground NOTE: Please, take into account than in these tables, Tx and Rx suffix are referred to UGround. This is: a line marked as “Comms Rx” is the pin dedicated to receive data from the radio, and thus, must be connected to the sending pin in the radio connector.
U-Ground User Manual - U-Ground PIN I/O 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 In In DC in GND NC NC In GND NC NC GND In NC NC GND NC In Out In DC in Out Out NC NC NC NC NC NC NC NC NC NC NC NC NC GND Out Out Out Out Out Out Out Out NC NC NC NC NC NC NC Function ADC 2 ADC 1 VIN Ground Reserved Reserved Futaba Joystick Ground Reserved Reserved Ground DGPS-TTL Correction Reserved Reserved Ground Reser
U-Ground User Manual - U-Ground 2.3.2 Pressure sensors connections U-Ground has a single static pressure sensor. The static pressure tap may be left unconnected if U-Ground environment is not sealed or pressurized. Otherwise it must be connected to the ambient pressure. The static pressure connection installation differs in U-Ground and U-Ground OEM. Depending on your U-Ground version, you have to refer to the appropriate subsection. 2.3.2.
U-Ground User Manual - Communications 3 Communications Communication between the U-Pilot and the U-Ground is done by a Radio Link with High noise immunity, high reliability and a range up to 100 km. All the settings regarding the radio configuration are configured by Airelectronics when the units are produced, so you do not have to worry about the communications, it is completely plug and play. Available on the bands of 2,4 GHz, 1,4 Ghz, 900 MHz , 455 MHz and 869 MHz with channel hopping.
U-Ground User Manual - Alarms 4 Alarms When communications between U-Pilot and U-Ground are active, the latter will decode the downlink communications and present basic information through the activation of the Alarms lines. These lines are designed to give a 3.3V TTL signal of high when the alarm is active and low when the signal is not toggled. The maximum signal strength the U-Ground is capable of driving is 25 mA. Typical use of these signal is the usage of LEDs or other kind of visual aids.
U-Ground User Manual - Alarms 4.1 Audible Signal Besides toggling the corresponding line, the ground station will generate a square wave to be feed into a square wave buzzer. The audible tone generated at the time of writing (2014/09/03) are 3 beeps of half a second duration and variable pitch in function of the toggled alarm. An audible tone will be generated any time an alarms goes from deactivated to active.
U-Ground User Manual - Joystick 5 Joystick The Futaba joystick must be connected to U-Ground through the U-Ground harness using the 3way military connector. The Joystick used on the system is manufactured by Futaba. Airelectronics serves a modified version of the model T6J ready to be connected to the 3-way military connector and with its own power regulator, so recharging the batteries is not required 2. The pin connection to the ground Hardware is detailed on U-Ground Connections.
U-Ground User Manual - Joystick 5.1 Connecting the Joystick to the Main connector To connect the Futaba emitter to U-Ground , a manufactured harness is usually served with the U-Ground installation kit. If the customer needs to manufacture a custom harness, the pin-out of the Futaba connector is described in this section.
U-Ground User Manual - Joystick 5.2 Configuration for Futaba Joystick Airelectronics supplies a Futaba emitter ready to be plugged to U-Ground. Configuration should be not altered for the proper operation of the system.
U-Ground User Manual - Box Mechanical Drawing Appendix A Drawing Box Mechanical 15
U-Ground User Manual - OEM Mechanical Drawing Appendix B OEM Mechanical Drawing 16
U-Ground User Manual - Changelog Appendix C Changelog This annex describes changes introduced to this document. Date Changes 2015/03/16 • Chnaged pin Connections for Emitter. 2015/02/23 • • • • • Updated version to 1.25 Added Mechanical Drawings Added explanation for pressure and RF connectors. Updated description of pins to match 51 pin connector. Updated information about the Futaba Emitter model used. 2014/09/03 • • • • • Version of document up to 1.
