EDAS (EGNOS Data Access Service) for added-value applications · • Android Nougat OS opens up the...
31
EDAS (EGNOS Data Access Service) for added-value applications Juan Vázquez, Elisabet Lacarra ESSP SAS 1
Transcript of EDAS (EGNOS Data Access Service) for added-value applications · • Android Nougat OS opens up the...
EDAS (EGNOS Data Access Service) for added-value applications
Juan Vázquez, Elisabet Lacarra
ESSP SAS
1
TABLE OF CONTENT
• EDAS overview
• EDAS information
• EDAS use cases
• Conclusions
04/10/2017 EGNOS workshop 2017 2
TABLE OF CONTENT
• EDAS overview
• EDAS information
• EDAS use cases
• Conclusions
04/10/2017 EGNOS workshop 2017 3
EDAS overview
04/10/2017 EGNOS workshop 2017 4
EDAS Service
Type of Data Service Description
OBS & NAV
EGNOS MSG
RTK MSG
DGNSS COR
FORMAT PROTOCOL
EDAS Services
04/10/2017 5
GPS and GLONASS observations and navigation data collected by the
entire network of EGNOS ground stations.
SBAS augmentation messages of EGNOS GEO satellites.
RTK (Real-Time Kinematic) messages.
Differential GNSS (DGNSS) corrections.
EGNOS workshop 2017
EDAS Service
Type of Data Service Description
OBS & NAV
EGNOS MSG
RTK MSG
DGNSS COR
FORMAT PROTOCOL
Real Time
Service Level 0 Data Filtering SL0
ASN.1 EDAS
Service Level 2 Data Filtering SL2
RTCM3.1 EDAS
SISNET RTCA SISNeT
Ntrip RTCM 2.x RTCM 3.1
Ntrip
Archive FTP RINEX, EMS, IONEX…
FTP
EDAS Services
04/10/2017 EGNOS workshop 2017 6
EDAS Service
Type of Data Service Description
OBS & NAV
EGNOS MSG
RTK MSG
DGNSS COR
FORMAT PROTOCOL
Real Time
Service Level 0 Data Filtering SL0
ASN.1 EDAS
Service Level 2 Data Filtering SL2
RTCM3.1 EDAS
SISNET RTCA SISNeT
Ntrip RTCM 2.x RTCM 3.1
Ntrip
Archive FTP RINEX, EMS, IONEX…
FTP
EDAS Services
04/10/2017 EGNOS workshop 2017 7
REAL-TIME
Nominal latency < 1 second
ARCHIVE
TABLE OF CONTENT
• EDAS overview
• EDAS information
• EDAS use cases
• Conclusions
04/10/2017 EGNOS workshop 2017 8
EDAS Information
04/10/2017 EGNOS workshop 2017 9
EDAS Registration Website
EGNOS Helpdesk
+34 911 236 555
http://egnos-user-support.essp-sas.eu/
EDAS SDD
(Services info & perfo
commitment)
Monthly Performance Report
(EDAS Monthly performances)
EDAS section
(EDAS info & Real-time
performances)
95,00%
95,50%
96,00%
96,50%
97,00%
97,50%
98,00%
98,50%
99,00%
99,50%
100,00%
EDAS Services Availability (%)
SL 0
SL 2
Data Filtering
Ntrip
SISNET GEO 1
SISNET GEO 2
FTP
EDAS Services Availability
04/10/2017 EGNOS workshop 2017 10
Nominal Availability > 99.5%
0
200
400
600
800
1000
1200
SL0/2
SISNET
Ntrip
DataFiltering
EDAS Services Latency Trending
EDAS Services Latency
04/10/2017 EGNOS workshop 2017 11
Nominal latency < 1 second
TABLE OF CONTENT
• EDAS overview
• EDAS information
• EDAS use cases
• Conclusions
04/10/2017 EGNOS workshop 2017 12
• GNSS data obtained from EDAS Services are used as input for GNSS performance monitoring and assessment:
– Analysis of different GNSS navigation solutions at the EGNOS stations.
– Several GNSS performance tools are customized to use EDAS Services, especially NTRIP, SISNeT and FTP.
– GNSS performances can be computed in real time and in post-processing (EDAS FTP Service).
GNSS performance monitoring
EGNOS workshop 2017 13 04/10/2017
• GNSS raw data obtained from EDAS Services are used as input for GNSS products development and atmospheric analysis:
– Analysis of ionosphere using EDAS IONEX files based on EGNOS corrections.
– Test of new ionospheric or troposferic models
– Meteorological studies based on GNSS observation measurements.
– Development of algorithms for GNSS Systems using EDAS GNSS historical data.
Development of GNSS algorithms or models.
14 04/10/2017 EGNOS workshop 2017
Tracking of assets
04/10/2017 EGNOS workshop 2017 15
GPS
@ Telespazio
• EGNOS data from EDAS can be used to improve the tracking of vehicles and goods: enhanced accuracy wrt GPS, increased reliability of the position, TTFF reduction…
GNSS raw measurements
messages
GPS ephemerides
EDAS SISNeT
/Service Level 2
Contribution for GNSS CORS networks
• EDAS data can contribute to improve GNSS Continuously Operating Reference Station (CORS) thanks to the access to the EGNOS stations raw data.
04/10/2017 EGNOS workshop 2017 16
• GNSS raw data from EGNOS stations can be used for different purposes:
– Increase network density
– Adding new stations without cost.
– Extend the CORS network coverage area
– Validation/testing of new SW upgrades
– Independent performance monitoring and/or anomaly analysis
Enhancement of GPS standalone position for mobile applications
• EDAS Services can be used in mobile devices for enhancing the GPS standalone position in real time thanks to internet connectivity.
• The positioning techniques supported by EDAS are the following:
04/10/2017 EGNOS workshop 2017 17
Positioning technique
EDAS Service Comments
EGNOS (SBAS) EDAS SISNeT Important in areas when the visibility of EGNOS Geostationary satellites can be obstructed.
DGNSS EDAS NTRIP (RTCM 2.X)
Submeter accuracy levels supported up to 250 km from the selected EGNOS stations.
RTK EDAS NTRIP (RTCM 3.1)
Centimetre level accuracy can be computed when located within 40 km from the EGNOS station.
04/10/2017 EGNOS workshop 2017 18
EDAS DGPS: tentative coverage Horizontal Accuracy
EDAS DGPS (percentile
95th)
< 1m
*Estimated coverage based on performance
assessment at specific locations and during a
limited timeframe
** Performance improves as distance from the
selected EGNOS station decreases
Support to specific applications in
mapping, transportation,
emergency services and
precision agriculture domains
250 km radius
Location Solution Pass to Pass
-15 min, 95th-
La Palma (Spain) LPAL0_LPIA 13,9 cm
La Palma (Spain) LPAL0_CNRA 10,1 cm
Cascais (Portugal) CASC0_LSBA 15,7 cm
Hoefn (Iceland) HOFN0_EGIA 12,4 cm
Onsala (Sweden) ONSA0_ALBA 10,1 cm
Melilla (Spain) MELI0_MLGA 11,2 cm
Oberpfaffenhofen (Germany) OBE40_ZURA 20,6 cm
Borowiec (Poland) BOR10_BRNA 13,7 cm
Ciboure (France) SCOA0_TLSA 18,6 cm
Toulouse (France) TLSE_TLSA 16,5 cm
EDAS DGPS: Pass-to-pass results
@GSA
Static data, percentile 95th, 15 minutes time window. ISO 12188-1, Tractors and machinery for agriculture and forestry-Test
procedures for positioning and guidance systems in agriculture-Part1:
Dynamic testing of satellite-based positioning devices
From 2nd July to August 6th 2016.
Solutions with horizontal accuracy (percentile 95th) < 1 m
04/10/2017 EGNOS workshop 2017 19
Location Solution Pass to Pass
-15 min, 95th-
La Palma (Spain) LPAL0_LPIA 13,9 cm
La Palma (Spain) LPAL0_CNRA 10,1 cm
Cascais (Portugal) CASC0_LSBA 15,7 cm
Hoefn (Iceland) HOFN0_EGIA 12,4 cm
Onsala (Sweden) ONSA0_ALBA 10,1 cm
Melilla (Spain) MELI0_MLGA 11,2 cm
Oberpfaffenhofen (Germany) OBE40_ZURA 20,6 cm
Borowiec (Poland) BOR10_BRNA 13,7 cm
Ciboure (France) SCOA0_TLSA 18,6 cm
Toulouse (France) TLSE_TLSA 16,5 cm
EDAS DGPS: Pass-to-pass results
@GSA
Static data, percentile 95th, 15 minutes time window. ISO 12188-1, Tractors and machinery for agriculture and forestry-Test
procedures for positioning and guidance systems in agriculture-Part1:
Dynamic testing of satellite-based positioning devices
From 2nd July to August 6th 2016.
Solutions with horizontal accuracy (percentile 95th) < 1 m
04/10/2017 EGNOS workshop 2017 20
Pass to pass 20 cm
EDAS DGPS: Pass-to-pass results
04/10/2017 EGNOS workshop 2017 21
EDAS DGPS in-field tests
conducted by Topcon agriculture and ESSP
in June 2017.
PRESENTATION COMING NEXT….
EDAS based DGPS maritime service (VRS concept)
22 04/10/2017 EGNOS workshop 2017
• EGNOS-based VRS corrections generated at IALA
beacons or AIS base stations locations.
• Pre-Broadcast Integrity Monitoring
• Solution Transparent to final users (same format,
integrity concept, signal and data content as
current IALA Beacons / AIS stations).
Study conducted by Alberding GmbH and ESSP
in 2016
2,17
1,19 1,21
1,76
1,15 1,15
0,84 0,84
1,80
0,95 0,98
0,75 0,74 0,75
1,89
0,84 0,83 0,79 0,79
1,79
0,81 0,81
1,01 1,01
0,00
0,50
1,00
1,50
2,00
2,50 Horizontal Error (95%)
EDAS based DGPS maritime service (VRS concept)
24 04/10/2017 EGNOS workshop 2017
Reference: ESSP et al., ION GNSS 2016, “EDAS for a DGPS maritime service: EGNOS-based VRS performance with pre-
broadcast integrity monitoring”
GPS only
VRS Without PBM
VRS with PBM
Horizontal Error at the 95th percentile below 1 m on all baseline lengths up to 300 km.
Availability above 99.9% for all the integrity solutions with “coastal” settings
EDAS based DGPS maritime service (VRS concept)
25
GNSS Network
Beacon Transmitters
(IALA beacons/
AIS stations)
EDAS
EDAS SISNeT (SL2) Rx
Ntrip Client
PRC Estimator
Integrity Checker
RTCM Encoder
EGNOS Msg
GPS Nav
GNSS Raw Data
EGNOS PRC
Control Station
Central Facility
EGNOS PRC
Integrity Flags
Processing
Facility
04/10/2017 EGNOS workshop 2017
• Several architectures
options for EGNOS/EDAS
based DGPS service for
mariners analysed by
GSA/ESSP.
• Multiple technical and/or
cost related benefits
provided by EGNOS/EDAS
based solutions
PRESENTATION COMING NEXT….
04/10/2017 EGNOS workshop 2017 26
EDAS active users distribution
In the future… EDAS in tablets and smartphones
• Android Nougat OS opens up the possibility of using the satellite pseudo-ranges received by the embedded receiver in a smartphone since May 2016.
• APIs: – android.location: Android
– android.gms.location: Google Play
04/10/2017 EGNOS workshop 2017 27
In the future… EDAS in tablets and smartphones (II)
04/10/2017 EGNOS workshop 2017 28
External GPS receiver
GPS raw measurements
Bluetooth Internet
EDAS data: • GPS nav data • EGNOS messages…
EGNOS/EDAS enhanced position
EDAS
Benefits: - Enhanced accuracy wrt GPS
- Increased reliability of the position
- TTFF reduction
TABLE OF CONTENT
• EDAS overview
• EDAS information
• EDAS use cases
• Conclusions
04/10/2017 EGNOS workshop 2017 29
Conclusions
04/10/2017 EGNOS workshop 2017 30
• EDAS provides free-of-charge access to the GNSS data generated and
gathered by EGNOS infrastructure in real time and in form of archive.
• Excellent performance (EDAS SDD commitment exceeded).
• EDAS delivers added value data for EDAS users or Service Providers in a wide range of applications
www.essp-sas.eu
+34 911 236 555 (H24/7)
http://egnos-user-support.essp-sas.eu
Corporate Video
Thank you!
