[{"data":1,"prerenderedAt":321},["ShallowReactive",2],{"project-9502015":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":29,"sentiment":30,"stance_mix":31,"scored_comments":36,"aspects":37,"strip":45,"post_text":47,"what":48,"said":93,"maker_in_thread":211,"shape":217,"grid":220,"attempts":282,"same_week":283,"maker_shows":41,"maker_hidden":313,"reader_version":314,"card":315},"9502015","Estimote Indoor Location SDK","4m-accuracy Indoor Location with Beacons","title","Show HN: 4m-accuracy Indoor Location with Beacons","http:\u002F\u002Fblog.estimote.com\u002Fpost\u002F118294444205\u002Fsuper-simple-and-accurate-indoor-positioning-with","blog.estimote.com","jimiasty",1430948883,2015,71,30,386,2565,16,"notable","infrastructure","indoor positioning sdk","library",[24,25,26,27,28],"indoor positioning","bluetooth beacons","ble","indoor location sdk","ibeacon","mixed",-0.133,{"positive":32,"neutral":33,"mixed":34,"critical":35},4,9,1,6,20,{"execution":38,"performance":40,"docs":42,"privacy":43,"idea":44},{"positive":34,"critical":39},0,{"positive":39,"critical":41},3,{"positive":39,"critical":39},{"positive":39,"critical":34},{"positive":34,"critical":34},[39,39,39,46,39,41,39,46,41,39,41,41,41,34,39,39,41,39,41,46,41,34,34,34,41,41,39,34,34,46],5,null,{"problem":49,"audience":60,"pricing":47,"motivation":67,"time_to_build":47,"stack":71,"openness":90,"stage":91,"team_size":92},{"value":50,"source":51,"evidence":52},"Locating people indoors where GPS does not work","inferred",[53,56],{"id":54,"by":11,"text":55},"9502029","Hi HN, this is Jakub, Co-Founder of Estimote. We have just uploaded into GitHub (https:\u002F\u002Fgithub.com\u002FEstimote\u002FiOS-Indoor-SDK) another release of our Indoor Location SDK. We have…",{"id":57,"by":58,"text":59},"9503467","Animats","This intensity-based approach is probably suitable for deciding what ad to display as someone moves around a store. It's not going to make VR headsets work indoors. At 1M, this…",{"value":61,"source":62,"evidence":63},"Mobile app developers building location-aware apps","maker",[64],{"id":65,"by":11,"text":66},"9503463","Hi Travis, Jakub again here. This is great; thanks for your comments. We try to have a very pragmatic approach and believe that room beaconifying procedure should be extremely…",{"value":68,"source":62,"evidence":69},"Make indoor location simple so developers can focus on their use cases",[70],{"id":65,"by":11,"text":66},[72,76,82],{"value":73,"source":62,"evidence":74},"iOS",[75],{"id":54,"by":11,"text":55},{"value":77,"source":62,"evidence":78},"Android SDK",[79],{"id":80,"by":11,"text":81},"9503474","Thanks! Glad you experimented with beacons and Hue. There is already several apps that combine beacons with Hue: https:\u002F\u002Fvimeo.com\u002F91335074 When it comes to Android we have just…",{"value":83,"source":84,"evidence":85},"Bluetooth LE","commenter",[86],{"id":87,"by":88,"text":89},"9502770","teraflop","As I understand it, Estimote's main technical selling point is that it uses Bluetooth LE. So the \"beacons\" can be made cheap and low-power, plus you get out-of-the-box…","unknown","launched","company",{"praise":94,"objections":110,"requests":146,"questions":158,"alternatives":189},[95,99],{"value":96,"source":62,"evidence":97},"Simple deployment and calibration of rooms",[98],{"id":65,"by":11,"text":66},{"value":100,"source":84,"evidence":101},"Interesting technology and useful for many applications",[102,106],{"id":103,"by":104,"text":105},"9504702","RichardZite","Highly recommended stuff.",{"id":107,"by":108,"text":109},"9502736","pr0vitamin","I had a fiddle with some Estimotes for a research project last year. Managed to get some fairly inaccurate indoor location tracking going on Android using 4 beacons and some…",[111,118,129,139],{"value":112,"source":84,"evidence":113},"Accuracy of about 4m is only middling compared to competitors",[114],{"id":115,"by":116,"text":117},"9503734","mmaroti","There are a ton of other competing technologies. We have been to the Microsoft Indoor Localization Competition and saw the estimote there too:…",{"value":119,"source":84,"evidence":120},"Interference with Wi-Fi on Android devices",[121,125],{"id":122,"by":123,"text":124},"9503568","craigts","These are very cool, but unfortunately the last time I tried using BLE (specifically Estimote beacons with their sdk) in an Android app the interference with wifi made the…",{"id":126,"by":127,"text":128},"9503827","heypiotr","From my experience, this usually happens with the older\u002Fcheaper Android devices that use a combined BT+WiFi radio\u002Fchipset (Nexus 4, Galaxy S3 etc.) Fortunately, the Android…",{"value":130,"source":84,"evidence":131},"Location tracking raises privacy concerns",[132,136],{"id":133,"by":134,"text":135},"9503309","bigiain","Im guessing (based on recently using Estimote beacons in a project) that this relies on inexpensive beacons and most of what happens is in the app. The beacons don't talk to the…",{"id":137,"by":134,"text":138},"9509323","Yep. Wifi is easy - any wifi module that can be put into \"monitor mode\" will let you listen in for SSID probes. Apple have started randomising the MAC address the device uses for…",{"value":140,"source":84,"evidence":141},"Only works on iOS for the home calibration feature",[142],{"id":143,"by":144,"text":145},"9503821","DiabloD3","Seems to be iOS only, unfortunately.",[147,154],{"value":148,"source":84,"evidence":149},"Documentation of the computational model and error sources",[150],{"id":151,"by":152,"text":153},"9502617","wyc","Do you use time of arrival techniques? What strategy do you use to overcome indoor multi-path conditions? Are there more detailed implementation notes somewhere? Reading the…",{"value":155,"source":84,"evidence":156},"Android SDK support",[157],{"id":107,"by":108,"text":109},[159,168,179],{"value":160,"source":84,"evidence":161},"How well does it scale to large spaces and crowds",[162,165],{"id":163,"by":134,"text":164},"9502815","How big is \"large spaces\" (should I start pitching this internally for a client with a ~30x60m room)? How does it perform with many people at once (think of a trade show booth…",{"id":166,"by":11,"text":167},"9503497","Technically there is no limitation in the size of the space; it can be an airport or shopping mall - you just need to use more beacons if you want better results in a huge space.…",{"value":169,"source":84,"evidence":170},"What phone settings are needed for it to work",[171,175],{"id":172,"by":173,"text":174},"9503126","rmxt","For the average iPhone-toting person whose location is the one being plotted, what does their phone have to be set to in order for this to work? Do they have to have a specific…",{"id":176,"by":177,"text":178},"9503147","kingnight","You just need bluetooth on. I don't believe the iPhone provides a distinct option for Bluetooth-On Visible vs Invisible.",{"value":180,"source":84,"evidence":181},"Does interference from bodies and materials distort results",[182,186],{"id":183,"by":184,"text":185},"9502974","wiradikusuma","Would the result be easily distorted by e.g. (human) bodies standing in-between, or certain materials (e.g. installing it in an art exhibition, but certain art installations use…",{"id":187,"by":11,"text":188},"9503526","It very much depends on the number of people and obstacles (glass, metal). The best approach would be to put more beacons in that \"interfering\" areas. If beacons are installed…",[190,197,204],{"value":191,"source":84,"evidence":192},"Ekahau indoor positioning",[193],{"id":194,"by":195,"text":196},"9502698","vardump","How does this compare to indoors location startup from 15 years back (or so?), Ekahau? http:\u002F\u002Fwww.ekahau.com\u002F",{"value":198,"source":84,"evidence":199},"WiFi, ZigBee and RFID localization",[200],{"id":201,"by":202,"text":203},"9502649","beambot","Pretty cool. You can achieve similar localization accuracy with WiFi, BLE, ZigBee, or long-range RFID. Common techniques are time of flight (ToF, or time of arrival), FMCW…",{"value":205,"source":84,"evidence":206},"GPS on smartphones",[207],{"id":208,"by":209,"text":210},"9504539","gravypod","Why not do this [1] and not have to worrie about other hardware? Everyone has a cell phone and it would end up more accurate. [1]…",{"comments":212,"answered":32,"key":213},7,[214,215,216],{"id":65,"text":66},{"id":54,"text":55},{"id":80,"text":81},{"commenters":218,"max_depth":46,"maker_replies":212,"first_comment_mins":32,"lifespan_hours":219},19,27,[221,223,225,227,228,230,232,233,236,239,242,243,244,247,249,252,253,254,255,257,259,261,263,266,267,268,271,273,275,279],[201,39,39,222,202,39],"commenter\u002Fneutral\u002Fnone",[65,39,39,224,11,34],"project\u002Fpositive\u002Fexecution",[54,34,39,226,11,34],"project\u002Fpositive\u002Fperformance",[107,34,46,224,108,39],[80,34,39,229,11,34],"maker\u002Fneutral\u002Fnone",[163,34,41,231,134,39],"project\u002Fneutral\u002Fperformance",[166,34,39,226,11,34],[234,34,46,235,134,39],"9504498","maker\u002Fpositive\u002Fnone",[151,237,41,238,152,39],2,"project\u002Fneutral\u002Fdocs",[240,237,39,241,11,34],"9503517","project\u002Fneutral\u002Fexecution",[172,41,41,241,173,39],[176,41,41,241,177,39],[245,41,41,241,246,39],"9503265","stove",[133,41,34,248,134,39],"project\u002Fcritical\u002Fprivacy",[250,41,39,251,173,39],"9504683","other\u002Fcritical\u002Fprivacy",[137,41,39,251,134,39],[183,32,41,231,184,39],[187,32,39,231,11,34],[194,46,41,256,195,39],"project\u002Fneutral\u002Fidea",[87,46,46,258,88,39],"project\u002Fpositive\u002Fidea",[57,35,41,260,58,39],"project\u002Fmixed\u002Fperformance",[115,212,34,262,116,39],"project\u002Fcritical\u002Fperformance",[208,264,34,265,209,39],8,"project\u002Fcritical\u002Fidea",[122,33,34,262,123,39],[126,33,41,231,127,39],[269,270,41,256,144,39],"9503369",10,[272,270,39,229,11,34],"9503522",[143,270,34,274,144,39],"project\u002Fcritical\u002Fnone",[276,277,34,262,278,39],"9503603",11,"contingencies",[103,280,46,281,104,39],12,"project\u002Fpositive\u002Fnone",[],[284,289,294,299,304,309],{"id":285,"name":286,"points":287,"category":288},"9498874","kiUi",136,"languages",{"id":290,"name":291,"points":292,"category":293},"9477032","zindex",125,"dev_tools",{"id":295,"name":296,"points":297,"category":298},"9485714","nvParse",123,"data",{"id":300,"name":301,"points":302,"category":303},"9491978","My Hacker News",78,"consumer_social",{"id":305,"name":306,"points":307,"category":308},"9476603","PID",73,"learning_science",{"id":310,"name":311,"points":312,"category":293},"9500823","Onboarded",54,false,"v2",{"id":316,"name":5,"line":6,"ai":313,"cat":20,"year":13,"points":14,"comments":15,"rec":29,"s":317,"top":18,"kw":318,"maker":11,"domain":10,"tier":19,"attempts":39,"strip":319,"url":9,"mix":320,"praise":96,"objection":112,"sub":21},9502015,-0.13,[24,25,26,27,28],"000503053033310030353111330115",[32,33,34,35],1793990924161]