M obile G I S Jan.Stankovic@vsb.czSlide 2
Intro duction Mobile and correspondence advances have passed trough serious innovative work as of late. The consequences of this improvement have brougt new conceivable outcomes in a wide range of zones. We can say that portable data frameworks are turning into a piece of our regular life, despite the fact that that numerous individuals didn\'t come to figure it out. We have a plausibility to be "versatile" amid our work or recreation and withal stay in contact with our experience in the workplace or with different specialists or companions in the field. Regardless we have verging on boundless access to data sources and registering power if important.Slide 3
Today\'s address… Introduction to portable advances, their points of interest and shortcomings. Some application territories – quickly. More point by point familiarize with parts utilized as a part of versatile GIS 3. Commonsense case from our gathering 4. Dis cussion, trade of encountersSlide 4
Mobile technologie s First look… I.Slide 5
Mobile Geoinformation Technologi e s MGIT could be portrayed as IT assigned for securing and handling of spatial information , that effectively utilize cell phones, remote interchanges and continuous learning of self position and position of different endorsers for critical thinking. Advances utilized for development of MGIT are : Mobile PCs (scratch pad s , PDA\'s, "PDAs ") Wireless correspondences (GSM,WiFi, satellites, ...) Po sitioning frameworks (glob al , lo cal, radio based, inertial,… ) Softw are for mobil e GIS – on customer and server webpage Geodata Other segments relying upon target zoneSlide 6
GPS sats GIS a DB server s GSM net Internet Mobil e customers Workstations S plentiful s ch e m e of MGITSlide 7
Why portable GIS ? Need of work in the recorded Paper and guide – non compact , not real Pap er guide is not real at the season of print … With MGIT we have all GIS capacities (Pan, Zoom, Filter, Search, Analyze,… .) Much better protest representation contrasted with paper maps – layers, scaling, customable legend Real time situating with association of GNSS Knowledge of position (and history) of different clients High presentness of layers , probability of online realization a nd dynamic response on late circumstance Direct computerized contribution of new information – less blunders, simple preparing and sharingSlide 8
Why versatile GIS– points of interest Information is that what moves - n ot individuals – they may focus on other work, not loosing time by venturing out from area to area or by utilizing non-successful convetional correspondences Possibility of brought together ongoing task administration , coordination and observing of field work, online individuals or vehicle following Possibility of consistent assembled information quality assessment – dynamic adjustment of future strides or densification of test network in risky parts (for instance in DTM) External database access – downloa d, transfer . …Slide 9
Why portable GIS– inconveniences Need to purchase versatile advances – "genuine" open air hardware is unreasonable . Need to keep up remote correspondence channels – altered installment tarifs Battery life/innovative issues Sometimes constrained com accessibility Training of faculty – particular control,…Slide 10
Different perspectives on portable GIS Tool for information gathering in the field little organization , single individual ,… Tool for information gathering in the field , information sharing and online investigation , choice backing , collaboration , route , checking, bookkeeping, … .Slide 11
Integration of MGIT into GIS I. Intermittent association of versatile PC to remote database. Least expensive arrangement ,however we don\'t have „with us" the latest information and we likewise don\'t have an opportunity to get the information in the field or to send it back to our office. We likewise have just those capacities accessible that are actualized in versatile customer. II. Group information exchanges (in one or both bearings) with utilization of remote correspondence We require remote correspondence innovation, however we have admittance to later information – databases are synchronized amid connetcion time. Utilization of online investigation or extrernal figuring power sources stays unimaginable or extremely tricky.Slide 12
Integrace MGIT do GIS III. Fulltime On-Line association with foundation and different customers in the field. Continuous association with focal database progressively. Every one of the information are stil real and accessible for other portable or inmobile customers or other remote clients. Utilization of extrenal registering powre or agreeable use (bunching) of figuring force is accessible if necessary. Additionally all capacities and administrations that are on base side are available and prepared for use. + Absolute work advancement . - Price for information exchanges *. * as indicated by utilized innovation – you may utilize your own particular .Slide 13
Some specimen application ranges Underground administrations – utility systems Water administration Transportation and logistics Arm y Crisis administration and salvage administrations Land administration, cultivating,… . …Slide 14
Background and segments… II.Slide 15
Mob ile PCs and gadgets Correct and very much considered determination of versatile processing gadgets which will be utilized as a part of the field has crucial impact for general accomplishment of portable geoinformation innovation Technology must not be a snag – it must not aggravate There are numerous things to consider – for instance: what sort of work are we going to do ? for to what extent time do we plan to stay in the field ? in what climate conditions ? is usefulness of our versatile framework basic forever or security ? Generally utilized cell phones are scratch pad s , tablet PC , handheld PC or SmartPhones Touch showcases are extremely helpfulSlide 16
A couple of illustrations…Slide 17
PDA \'s Small size Light weight Satisfying processing power Expandability Compaq iPAQ \'s (later): 64 MB ROM streak 64 RAM ( + CF, SD, 1 GB Mi c rodrive) 400/600 Mhz Strong ARM CPU 640/480 presentation soundcard WiFi ,Bluetooth a SIR/FIR, USB, Com Weight less then 160 g *Pictures from Compaq site.Slide 18
Expandability - availability Localization of possition GPS recipients, from WiFi or GSM net Communication WLAN (802.11) GSM (GPRS) Bluetooth ,… . Memory development CF, SD, memory stick cards IBM Microdrive – up to 5 GB Multimedia Digital cam TV And other… *Pictures from Compaq site.Slide 19
Practical encounters with PDA Advantages The gadget is tiny and „Mobil e " – fits to stash Computing force is extremely satisfactory – equivalent to PC All memory cards or extensions are solid and minimal effort . Non dangerous correspondence with GPS recipients Relatively long life on battery In tegrated correspondence advancements …Slide 20
Practical encounters Problems Stability of OS (WinCE) - > LINUX Pr oblems while working with huge datasets – moderate transport Specific and extremely touchy control – needs experienced administrator Little or missing console – troublesome contribution of properties Designed for indoor use !!! Moistness, ice or drops might be, and frequently are dangerous No approach to swap battery for extra one (not valid in latest models) Completely released battery implies deadly information misfortune Costly particular business versatile SW for WinCESlide 21
Linux on handhelds Why Linux on Handheld s ? Since late PDA\'s are powreful HW From advanced right hand to server framework ! Incredible backing for remote interchanges, Linux is intended for system and disseminated situations Performance, measured quality, security, solid Its Free OS – including improvement devices – total autonomy on restrictive arrangements + solid devel. group bolster Possibility to port a great deal of free programming >> >> GRASS GIS on IPAQSlide 22
Linux on PDA\'s X-window framework Integrated backing for customer server applications. Remote execution of uses Easily adjustable realistic UI User establishment of Linux into PDA is not simple, but rather very much upheld – there is requirement for some learning and concentrated SW to blaze ROM HP bolster, engineers from DEC, client group Distrib utions Familiar Linux , Intimate Linux a nd other. Local accumulating environment gave Skiff Cluster projec t a Toolchain Projec t (cross gather)Slide 23
Rugged PDA s GPS Trimble Recon, GeoXT, GeoXM Correct choice for field workSlide 24
Notebooks Bigger shows then PDA\'s More CPU force Comfortable console Long battery life (Centrino) Easy OS choice More substantial, not really "portable" . Not great "while strolling" . Costly in open air variantsSlide 25
Panasonic Toughbook CF 29 Water and clean confirmation, touhg Centrino – CPU power + long run Integrated correspondences - BT, WiFi COM, USB. IRDA,… 13.3 " displ ay 3.6 kg cost 5000 USDSlide 26
Tablet PC\'s Smaller and more slender then scratch pad Bigger then PDA … But likewise show … The same figuring parameters like NTB Long battery life Touchscreen control Very agreeable use in the field Available additionally in rough outlineSlide 27
Practical case – fire salvageSlide 28
GIS datab ases GPS GSM GPRS Data gathering LAN, WAN Internet Data accumulation Data investigation Internet Dispatching Other gadgets Background Communication Field Wireless correspondencesSlide 29
Wireless interchanges The generally utilized com. innovations of today are : Technologies based on GSM base GSM g enaration 2 GSM quality apportion 2.5 – HSCSD, GPRS GSM era 3 – UMTS , CDMA Technologie s in view of GSM have leverage of long range (worldwide) however are under authorizing (expensive) and in this way are subject to suppliers Technolo gie based on "open benchmarks" 802.11 (Wi-Fi) ( the entire gathering of guidelines ) 802.16 (WiMAX) Bluetooth Other No permitting
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