Leica GPS Spider Setting the Standard for GPS

Leica GPS Spider Setting the Standard for GPS Networks Mark Burbidge MRICS Minst. CES GNSS Network Manager – Leica Geosystems

Leica Smart. Net Technology § First 24/7 commercial national GPS network correction service for Great Britain § Available since December 05 § Offering a continuous accurate, reliable, robust, traceable and repeatable national GNSS network solution, based on a common datum § Services include: RTK & DGPS Solutions. Available to everyone with a DGPS/RTK receiver § Internet positioning in the field via Mobile GPRS (General Packet Radio Service) 2

Leica Smart. Net - Reference Stations § Ordnance Survey (OS) currently have a national network of over 90 reference stations called OS Net § Through commercial partnership, OS have provided Leica Geosystems with raw data feed from OS Net § Ordnance Survey (OS) intend to maintain and add further stations 3

Leica Smart. Net – Strengthening the Network § Leica intend to add value with the deployment of a further 40+ stations § Leica intend to add value by increasing the opportunities for a full GNSS (Global Navigation Satellite System) network. Tracking all available signals from GPS, GLONASS and the future Galileo § Strengthening the network increases the survey quality while providing redundancy, accuracy, density and reliability 4

Leica Smart. Net - Reference Station Comms Receiver Communication: § § NTRIP raw data feed from OS Net Direct Serial Modem, Analog or ISDN TCP/IP (LAN, Internet, NTRIP) Receiver Types: § Leica System 500 § Leica System 1200 § 3 rd party receivers and raw data formats 5

Leica Smart. Net – Spider Network Software § Using an array of reference stations § Real time Network processing § Powerful zero-difference algorithm § Master Auxiliary Concept (MAC) Providing Network RTK Corrections in Standard RTCM V 3. 0 Format § Modelled Corrections together with a traceable set of multiple reference stations § CM RTK accuracy § Sub metre DGPS 6

Leica Smart. Net – Network RTK B E N E F I T S § Increased Coverage § Improved availability § Best Reliability § Faster Rover initialisations § Consistent high accuracy § Higher productivity § No local base station required § Working on a common datum Arrive on site, switch on and start working! 7

Leica Smart. Net – Network RTK Corrections Spider. NET Corrections - MAX : § Network RTK Standard RTCM 3. 0 Format with Leica Master-Auxiliary concept § Ideal for broadcast transmission § For Rover to achieve best performance § Optimised bandwidth to minimise transmission cost § Always best cell of fixed network sites. § Automatic reselection when rover moves away 8 Communication: § Mobile Internet GPRS § GSM Access Router § Landline & Wireless § TCP/IP § NTRIP Caster & Server

Leica Smart. Net – Network RTK Corrections Spider. NET Corrections – i-MAX : § i - Individualsed Network RTK § Optimised for each rover location § Provided in standard baseline RTK formats (RTCM V 2. 3, Leica) § Ideal for legacy receivers that cannot use MAX § Always best cell of fixed network sites § Automatic reselection when rover moves away 9 Communication: § Mobile Internet GPRS § GSM Access Router § Landline & Wireless § TCP/IP § NTRIP Caster & Server

Network Transmission Concept One Master Reference Station Some Auxiliary Reference Stations One Network Cell Auxiliary Reference Station C Receiving Corrections for Master and Correction Differences for the Auxiliary. . . Correction Differences of the Aux. relative to the Master Rover Auxiliary Reference Station D Network Estimation process incl. Ambiguity Resolution, for Master and of Correction Differences for each Auxiliary Reference Station X Auxiliary Reference Station B Master Reference Station A 10 Network Processing Facility

Leica Smart. Net – Network DGPS Corrections Spider. NET Corrections – DGPS: § Provided in standard RTCM 9, 2 v 2. 3 formats § Ideal for many DGPS devices Communication: § § § Mobile Internet GPRS GSM Landline & Wireless TCP/IP NTRIP Caster & Server 11

Leica Smart. Net – Control Centre Support § Real time view of Rover user access § Field support for users anywhere in the network (GB) § Complete Rover status monitoring 12

Independent Smart. Net Quality Monitoring In addition, Leica have partnered with the internationally recognised Institute of Engineering Surveying and Space Geodesy at the University of Nottingham IESSG will provide an exclusive and independent Quality Assurance service, adding additional value and security to subscribed users of Smart. Net 13

Safe, Secure, Reliable Infrastructure § Leica Smart. Net servers are located at a high security, co-location data centre in London Docklands § § § Secure RTK Service access control Name & Password via GPUID Telephone number TCP/IP address NTRIP Authentication Full system redundancy with backup servers are located at the data centre § Full mechanism to seamlessly switch to a backup system is immediate. Plus on-site support/monitoring 14

Smart. Net Website - Available May § Active map of stations § Rinex downloads § Raw data coordinate processing § § § Station information & health Network Quality Monitoring Nottingham University QA link GNSS QC Quality Assurance Customer testimonials 15 facility to nearest reference stations Customer testimonials

New GNSS Receiver - GPS & GLONASS § Add Glonass to the world’s best-performing GPS system § Reduce downtime and benefit from higher productivity § Rise to the next level with GNSS – Smart. Track+ & Smart. Check+ § Includes L 2 C § New Phase Multipath Mitigation Technology § 1200 models upgradeable § Upgrade paths to future GPS L 5 & Galileo signals § 72 Channel receiver § Future Proof technology! 16

Leica Smart. Net – Positioning Services Building Construction Utilities Sector Precise Vehicle Tracking Emergency Services GPS Monitoring Port Operations Machine Control Land Surveying Agriculture Plus 17 much more business opportunities for end users

Finally - How much does Smart. Net Cost? Stand Offer 1 month free (13 months subscription) Annual Subscription Cost: RTK Low rate user (40 hrs p/m) RTK Unlimited access DGPS Low rate user (40 hrs p/m) DGPS Unlimited Access Multiple user discounts available £ 1, 200 £ 2, 000 £ 350 £ 750 GPRS Comms Costs Typical contract for 250 mb £ 20 -25 p/m (more than enough for 7 days a week surveying) Web Site Rinex Download 1 sec 15/30 sec 18 Negotiable FOC

Leica GPS Spider Setting the Standard for GPS Networks Thank You