Monday, June 27, 2016

2030 Join Command Control Architecture Data Protocol Exchange

2030 Join Command Control Architecture Data Protocol Exchange
“We need for unmanned aircraft to act like manned aircraft. We need unmanned aircraft to be tasked like manned aircraft. We should be capable of flying both manned and unmanned platforms together, to include multiple unmanned airframes controlled by one operator,” the general continued. “And we need commanders to have the confidence that unmanned or manned, it doesn't make a difference, as they are equally effective,” (Gen. William T. Hobbins- USAF, 2006).

The current interfaces of control and monitoring of unmanned systems have similarities and differences in the design according the operational domain and levels of autonomy; but they have a lot of technological gaps that do not permit integration, compatibility, interoperability, and others. US forces has developed a new concept of an integrated Command and Control (C2) Architecture that will enable, in coordinated way, the operations of manned and unmanned systems by the year 2030. Thus, both types of systems, manned and unmanned will operate together in the unique architecture with collaborative knowledge in network and common interfaces that will enable interoperability between them.
            The new architecture of systems will involve all points or nodes of interconnection and control interfaces for operations in the battlespace; for instance, manned vehicles, unmanned vehicles, personnel, broadcasting and rebroadcasting stations, satellites, and computer networks. Advances in collaborative networks will be enabled with High level of Computing Power, data link of communications with compatible standards, and an “Advanced Cross Medium Rebroadcast capability”. The architecture will be based in open systems and will let to other systems from government agencies to interface with full integration with US Forces Systems.
            C2 Control Systems are models of closed-loop control systems or feedback control systems and open-loop control system. The closed- loop control systems are automated controls systems with automatic feedback; also, this type of control is known as plant model and is based on the loop OODA (Observe, Orient, Decide, and Act) defined by Boyd. At the same time, the stage of decision and action selection have defined 10 levels of automation of unmanned systems; the high level of fully autonomy that make all decisions acting in autonomous way and ignore the human interaction, the system informs to the human operator if “decides” to, the system informs to the human operator only if “asked” to, the system executes decisions  and then “inform”, the system permits to human operator a short time to change the decision/action before it is executed in automatic way, the system execute suggestion with human operator approval, the system suggest an alternative, the system selects decisions/actions, the system offers a set of decisions or actions, and the low level or manual operation with complete operation by human operator to take decisions and make actions. (Parasuraman, 2000)
National Institute of Standards and Technology developed a simplified model (Autonomy levels for unmanned systems-ALFUS) of three autonomy levels according the human robot interactions of the 10 levels of decision and actions (HRI), Mission Complexity (MC), and Environmental Complexity (EC). The levels are:
Low Autonomy level (1, 2, and 3 - OODA): High level of Human Robot interaction, low level tactical behavior, simple environment.
Medium Autonomy level (4, 5, and 6 - OODA): Medium level HRI, medium complexity, multifunctional missions, moderate environment.
High Autonomy Level (7, 8, and 9): Low level HRI, collaborative and high complexity missions, difficult environment.
As summary, this architecture is envisioned for the command and control C2 systems of unmanned vehicles in the year 2030 and involves the “interfaces” between unmanned and manned vehicles operating in all domains such as air, ground, space, underwater, and surface water, C2 nodes, and others. The main exchange of information is through of a collaborative network which acts as data fusion network which is distributed across the forces. Tactical Cloud Network and Cloud Computing Network are new concepts involved in the new architecture.    
            The 2030 Joint Command and Control architecture is a global model based in the TMN (Telecommunications Management Networks) and OSI (Open System Interconnection) standards which define the mode to access to the Interfaces of control such as the ground control station and NOC centers. The NATO STANAG 4586 is an exchange message standardization which is managed in the level 7- application of the OSI level. For example, the data link is the OSI level 2-Link, the network protocols like IP or X.25 are managed in the OSI level 3- network, the codes of encryption and compression of the sensor data like videos and images are managed in the level 6-Presentation.

  
References
An Integrated Command and Control Architecture Concept for Unmanned Systems in the Year
                (2013). Retrieved April 17, 2016, from
An integrated command and control architecture Concept for Unmanned Systems in the year
(2013). Retrieved April 18, 2016, from
Designing Unmanned Systems with Greater Autonomy. (2014). Retrieved April 14, 2016, from
Parasuraman, R.; Barnes, M. J.; Cosenzo, K. A. Adaptive Automation for Human-Robot
            Teaming in Future Command and Control Systems. The International C2 Journal 2007, 1
(2), 43–68.
Parasuraman, R.; Cosenzo, K. A.; de Visser, E. Adaptive Automation for Human Supervision of
            Multiple Uninhabited Vehicles: Effects on Change Detection, Situation Awareness, and

Mental Workload. Military Psychology 200921 (2), 270–297. 

Monday, June 20, 2016

UAS Sensor Placement


Assignment: UAS Sensor Placement - MS Unmanned Systems - Embry Riddle Aeronautic University
 



UAS Sensor Placement
One of the most important decisions in the design of unmanned systems is the sensor placement which is based on the objectives and challenges of the mission assigned to the unmanned system. The paper will be focused to show two unmanned aerial systems (UAS) of commercial use. One of these systems is the DJI-Phantom-4, which is equipped with camera to provide services of still pictures and full video less than 400 feet of height above ground level (AGL). The second system is the Hubsan-H107D-FPV-X4-Mini-RTF Quadcopter which is focused to act as First Person View (FPV) racer competitor.
DJI Phantom 4
The design of the DJI- Phantom-4 is focused to high quality photography and a full video similar to cinematography productions. As basic characteristics, the DJI-Phantom-4 drone avoids the obstacles automatically by using a system called ActiveTrack which tracks moving objects, let to fly it by using its Tap-Fly system with a finger’s tap, have smart return to home feature system that allow to avoid all kind of obstacles at the return time to home. The time flight of the Phantom-4 is of 28 minutes, the maximum control range is 5 Km (3.1 mi), the maximum speed is about 44 mph (72 kmh). “It has an integrated gimbal for camera stability and optimized vision positioning system for raise positioning altitude up to 10 meters” (DJI, 2016). Also, DJI-Phantom- 4 has integrated long range transmission of HD video downlink with great precision.
The cost of the basic unit of Phantom 4 is the USD $ 1399.00 and the recommended accessories such as Intelligent Flight Battery USD $ 169.00, Car Charger kit USD $62.00, Battery Charging Hub USD $ 90.00. The camera is included in the basic unit.

Aircraft characteristics

Weight of the Aircraft 1380 grams
Maximum speed of ascent 6 meters by seconds in sport mode
Maximum speed of descent 4 m/s
Maximum Speed 20 m/s
Maximum ceiling of service 19685 feet above sea level
Maximum time of Flight 28 minutes (Approximately)
Range of operating Temperature 32° -  104° F
GPS satellite system - setting mode GLONASS
Diagonal length (Without Propellers) 350 mm

The camera of the DJI- Phantom-4 uses a sensor of 1/2.3” with 12 M of effective pixels and lens with field of view (FOV) of 94° 20 mm with CMOS technology to capture still photography, with max size of 4K x 3K, in different modes such as burst shooting of 3-5-7 frames, auto exposures bracketing (AEB), time-lapse, and HDR. Also, the camera captures videos in UHD, FHD, and HD modes in any of two formats; MOV which is an MPEG4 common multimedia file format that uses algorithms of compression developed by the company Apple and used with QuickTime application program; and MP4 which is a file with a common format MPEG4 that can be associated with the binary format for scenes also known as BIFS that gives a complete set of options for presentation of scenes in full motion.
The positioning system of the camera, which is controlled by a gimbal, has a range of control of the pitch motion of -90° to +30° and 3 axes for stabilization of the pitch, roll, and yaw movements of the aircraft.  The camera has a slot for Micro SD card that support cards of 64 GB, the basic unit comes with a card of 16 GB. Also, the camera has a USB data port that let download pictures and videos from a computer.  All functions of the camera can be controlled from the remote control unit.




DJI - Phantom 4


Hubsan-H107D-FPV-X4-Mini-RTF- Quadcopter
The Hubsan-H107D- FPV-X4-Mini-RTF Quadcopter is a First Person View (FPV) racer competitor system which come in a kit with a small LCD screen of 4.3’ integrated with a transmitter. Hubsan has a camera designed to transmit a real-time video signal. The cost of this drone is about USD $200 which is not inexpensive before the risk of damage or collision in the race and the investment loss.
The measure of the FPV is 4.5 inches diagonally, the battery has 3.7-volt 380-mAh and it is designed with lithium polymer and the time of charge is about 30 minutes via USB cable, the time of flight is around seven minutes. The camera is designed with a sensor of 0.3 megapixels and a resolution of 640 x 480 but displayed in a screen of 720 x 480. The control distance is 50 – 100 meters; the video of the flight can be recorded in SD card.


Hubsan-H107D-FPV-X4-Mini-RTF Quadcopter 



References


The Ultimate FPV System Guide 2016 - Best Drone Goggles. (2016). Retrieved June 20, 2016, from     http://www.dronethusiast.com/the-ultimate-fpv-system-guide/#

4K UHD Video Drones Creating Waves In Aerial Cinematography. (2016). Retrieved June 20,

2016, from http://www.dronezon.com/aerial-photo-and-video/aerial-filming/4k-ultra-high-definition-video-drones-creating-waves-in-aerial-cinematography/#

DJI Drone (2016).Retrieved June 20, 2016, from
http://store.dji.com/product/phantom-4?gclid=CM3y0aLkt80CFRY8gQodsZoM0Q

Phantom 4 User Manual V1.2. (2016 Mar). DJI.com. Retrieved from
https://dl.djicdn.com/downloads/phantom_4/en/Phantom_4_User_Manual_en_v1.2_160328.pdf