Overview of Unmanned Aerial System Traffic Management (UTM) · 2016-06-01 · Overview of Unmanned...
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Overview of Unmanned Aerial System Traffic Management (UTM)
https://ntrs.nasa.gov/search.jsp?R=20160006684 2020-05-31T11:22:19+00:00Z
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Motivation
• Many applications of Unmanned Aerial System (UAS) have been proposed
– Humanitarian – Precision agricultural
– Package delivery – Infrastructure monitoring
• Worldwide interest is intense
• UAS will need to operate in uncontrolled airspace
• No infrastructure is available to support these new operations
– Today’s Air Traffic Management (ATM) started after mid-air collision over Grand Canyon in 1956
• The US needs a system for managing UAS operations in civilian low-altitude airspace
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Sense of Urgency
• Business applications are emerging rapidly
• Low-altitude operations could become dominant aviation activity
• Vehicle designs are changing continuously
• Airworthiness certificate relief and Certificate of authorization (COA) are taxing processes
• Visual line of sight is limiting
• Several efforts to integrate civilian UAS into the National Airspace System are underway
• An automation system, operational procedures, flight rules, and regulations are urgently needed to enable the industry
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Agenda
• Objectives
• Development Approach
– Builds
– Services
– Simulation Capabilities
– Field Tests
• UTM Build 1 Field Test Description
• Summary
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Objectives
• Develop proof-of-concept UTM system to safely enable low-altitude small UAS operations
– Automation system
– Operational procedures
– Flight rules
• Demonstrate UTM system in field tests in conjunction with a broad set of partners
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US Airspace Classification
Source: Pilot’s Handbook of Aeronautical Knowledge, FAA
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UTM Applications
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Notional UTM Scope
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UTM Builds and Services
• Based upon four risk-based criteria:
– Density of people on the ground
– Number of structures on the ground
– Likelihood of manned operations in close proximity
– Number of UAS operations in close proximity
• Each build enables certain types of missions and provides certain services
• Each build includes supports the missions and services of the previous builds
• Builds are intended to be developmental milestones as well as self-contained systems.
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High-Level UTM Builds
• Build 1:– Within visual line-of-sight– Over unpopulated land or water– No manned aircraft– Geo-fences separate UAS– Contingencies handled manually
by UAS pilot
• Build 2:– Beyond line-of-sight– Over sparsely populated land– Few manned aircraft– Procedures and rules-of-the road
separate UAS– Contingencies alerted to UAS
operator
• Build 3:– Beyond line-of-sight– Over modestly populated land– Some manned aircraft– In-flight separation of UAS– Some contingencies resolved
• Build 4:– Beyond line-of-sight– Urban environments– Manned aircraft commonplace– Autonomous separation of UAS– Large-scale system-wide
contingencies resolved
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Notional UTM Airspace
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High-Level UTM Services
• Security Services:– System Health Monitoring
– Vehicle Registration
– User Authentication
– Flight Monitoring
• Flight Services:– Flight Planning
– Scheduling and Demand Management
– Separation Assurance
– Contingency Management
• Information Services:– Airspace Definition
– Weather Information
– Terrain and Obstructions
– Traffic Operations
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UTM System Architecture
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UTM Services
UTM Manager GUI
UTM Manager
Exte
rnal
AP
I
External API
UTM
AP
I
UTM API
Terrain Maps
Obstacle Data
Weather Data
Public Safety Data
Airspace Data
NOTAM Data
User Credentials
Vehicle Registration
Vehicle Performance
Data Service Providers
Precision Agriculture
Public Safety Imaging
Science Missions
UTM Clients
UASUASPIC
UAS OperationsUAS
Operators
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UTM Services
UTM Manager GUI
UTM Manager
Exte
rnal
AP
I
External API
UTM
AP
I
UTM API
Regulatory Agencies
Law Enforcement
Public Access
Community Groups
Hobbyists General Public
Air Traffic Systems
Traffic Management Systems
ATC SystemCommand Center
AirportTower
Air TrafficControllers
Air Traffic Managers
Terrain Maps
Obstacle Data
Weather Data
Public Safety Data
Airspace Data
NOTAM Data
User Credentials
Vehicle Registration
Vehicle Performance
Precision Agriculture
Public Safety Imaging
Science Missions
ATM Systems
UTM Clients
Data Service Providers
Other StakeholdersUAS
UASControllers
Other UTMs
UAS OperationsUAS
Operators
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UTM Simulations
• Demonstrate and evaluate advanced UTM services and UAS operations in high-fidelity human-in-the-loop simulations
• Define human’s roles, responsibilities and procedures for managing UTM operations
• Perform verification and validation testing of UTM system prior to field tests
• Simulate complex operations that cannot be done during the field tests (e.g., urban operations, 9/11 type scenarios)
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NASA Lab Test BedUTM simulator with access for external partners
UAS Operator/ Controller
Simulation Viewer(e.g. Google Earth)
UAS Operator/ Controller
Simulation Viewer(e.g. Google Earth)
Simulation Manager
LVC gateway
External partner
Simulator
External Partner Client
SimulationGateway
UTM Services
UTM
AP
I
UTM API
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UTM Field Tests
• Demonstrate, and evaluate current UTM services and UAS operations in conjunction with UTM stakeholders
• Verify tools and procedures to manage UTM operations
• Accelerate deployment of UTM System to FAA UAS test sites
• Validate assumptions made by the UTM Concept of Operations (e.g., vehicle performance, operational conditions, integration with real flight hardware and NAS systems)
• Provide tangible products for technology transfer of UTM requirements and capabilities to the FAA and UTM stakeholders
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Build 1 Field Test Scenario
• Physical Location: Low Altitude Class G Airspace– Outside the Mode-C Veil
– At least 3 nmi away from airports, helipads, etc.
– 1,200 feet AGL or lower
• Risk Criteria– Population Density: Only people involved in operation
– Structural Density: Only structures related to the operation
– Manned operations: No non-participating aircraft expected
– UAS Operations: Segregated by geo-fences or time
• Test Constraints– Within visual line-of-sight of Pilot-in-Command
– During daylight hours
– With visibility greater than 1 statute mile and clear of clouds
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Build 1 Field Test Objectives
• Objective 1: Demonstrate UTM Build 1 capabilities and effectiveness under real world uncertainties
• Objective 2: Collect data to support Build 2 development
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Build 1 Field Test Approach
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NASA Flight Support Crew
Partner(s) Flight Support Crew
Demonstration Airspace
Operation 1 Operation 2
Mission Manager
Range Safety Officer
Visual Observers
Partner(s) GCS/Display
NASA GCS/Display
Ad-hoc network
UTM SystemUTM Manager
SurveillanceWeather
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Build 1 Field Test Example
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Flight PlanTake-Off ClearanceTerminate Flight Plan
Approval/Rejection
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Summary
• UTM is a unique and necessary effort to enable safe operations
• Collaboration is welcome: private sector, university, and government agencies
• Field testing and simulations will demonstrate UTM feasibility
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Backup Slides
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UTM Services: Security Services
• System Health Monitoring– Monitors the status of the internal subsystem and external system
components required to provide each UTM service
• Vehicle Registration– Ensures that only registered vehicles are approved for operations within UTM
airspace and receive the appropriate UTM services
• User Authentication– Ensures that only credentialed users can access the system and are provided
the appropriate UTM services
• Flight Monitoring– Monitors both UAS and non-UAS operations within the UTM airspace in terms
of their safety and security risk to each other
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UTM Services: Flight Services
• Flight Planning– Assesses proposed UAS operations against airspace availability and
operational constraints
• Scheduling and Demand Management– Schedules UAS operations to reduce congestion, conflicts, and improve overall
safety as traffic demand increases
• Separation Assurance– Provides temporal, procedural and in-flight separation services from other
traffic, weather, terrain, and vertical obstructions
• Contingency Management– Resolves off-nominal conditions that occur during an operation such as flight
non-conformance and lost communication
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UTM Services: Information Services
• Airspace Definition– Provides users with the physical extents of its UTM airspace as well as regions
within that airspace where operations are not permitted – either permanently or temporarily
• Weather Information– Provides users with information about the current and predicted weather
conditions in the UTM airspace
• Terrain and Vertical Obstructions– Provides users with information about the terrain, man-made structures, and
vertical obstacles in the UTM airspace
• Air Traffic Operations– Provides users with information about the planned and current UAS
operations in the UTM airspace
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Standalone Testbed: UTM-PSPersonal Simulator for UTM
Functionality• Create and control UAS scenarios in MACS• Visualize in Simulation Viewer• Communicate to UTM via UTM API• MACS Messaging Window to display UTM comm.
Automated messages:• MACS flight plan->Operational plan• ALL CLEAR (TBD sec) before activating aircraft• MACS flights state -> UTM position updates• CLOSED message ->UTM (landed)Manual messages• UTM messaging window in MACS for viewing
UTM messages and sending responses from MACS
UTM
Simulation Manager
UAS Controller
UAS Operator
Simulation Viewer(e.g. Google Earth) U
TM
AP
I20:01 – IN: UAS1 ACCEPTED20:12- OUT: UAS1 ALL CLEAR
OUT>> UAS2 CANCELLED
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NASA Lab test bed: UTM-LSLab Simulator for UTM
Functionality• Simulate multiple UAS clients• Create and control UAS from
multiple operator station in MACS• Visualize in Simulation Viewer• Communicate to UTM via UTM API• MACS Messaging Window to
display UTM comm.
UTMUAS Operator/ Controller
Simulation Viewer(e.g. Google Earth)
UAS Operator/ Controller
Simulation Viewer(e.g. Google Earth)
UAS Operator/ Controller
Simulation Viewer(e.g. Google Earth)
UTM
A
PI
ADRS
Simulation Manager
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NASA Lab Test BedUTM simulator with access for external partners
UAS Operator/ Controller
UAS Operator/ Controller
Simulation Manager
LVC Gateway
External partner
Simulator
External Partner Client
UTM Services
UTM API
UTM SystemSimulation Viewer(e.g. Google Earth)
Simulation Viewer(e.g. Google Earth)
SimulationGateway
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Build 1 Location and Layout
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Test Location: Crows Landing Airfield 35 miles east of Moffett Field, CA
NASA Ames Research Center has a Use Agreement with Stanislaus Co. which owns most of the property.
Vehicles would be operating under a NASA MOA*
There are no usable facilities or services at Crows Landing. Users must be 100% self-sufficient and bring all their own equipment, power, bathrooms, shade, water, and food.
There are services several miles away in the towns of Crows Landing or Patterson.
Test Duration: 1 Week Dates: TBD (August 17-20th 2015)
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Build 1 Flight Test Scope
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Block A: Singleton Operations Testing UTM Services in Nominal Conditions
Testing Operational Procedures in Nominal Conditions
Testing Vehicle Conformance
Data Collection: Vehicle and Surveillance Performance
Block B: Sequential Operations Testing UTM Services in Nominal and Off-Nominal Conditions
Testing Operational Procedures in Nominal and Off-Nominal Conditions
Testing Vehicle Conformance
Data Collection: Vehicle and Surveillance Performance
Block C: Coincidental Operations Testing UTM Services in Nominal and Off-Nominal Conditions
Testing Operational Procedures in Nominal and Off-Nominal Conditions
Testing Vehicle Conformance
Data Collection: Vehicle and Surveillance Performance
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ProhibitedAirspace
Windforecast
Expectedtrajectory
Operation plan rejected
ProhibitedAirspace
Launch
Recovery
1
2
3
4
5
6
7
8
9
Operation plan submitted
ProhibitedAirspace
Expectedtrajectory
AirspaceGeofence
Windforecast
Operation plan approved
UTM Constraint Checking
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• Trajectory conformance depends on:• Aerodynamic characteristics• Vehicle performance (e.g. thrust)• Automatic flight control
• Three ongoing efforts:• Vehicle modeling with available data• Model validation with field tests• Assessing feasibility of wind tunnel tests