indoor-positioning-system

Is wifi/bluetooth Triangulation(not trilateration) using a mobile device possible?

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问题 Well for triangulation you need to have the direction from which your device is receiving the signal.We can calculate Angle of Arrival for that but calculating that angle requires an array of receivers. Is a cell phone capable of calculating Angle of Arrival? I am asking this because I have came across the terms like wifi/BLE triangulation, calculating position by triangulation etc but they're actually referring to Trilateration in most of the cases. I know how trilateration works for a

Show FloorPlan and get Location with IndoorAtlas

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Is there any resource on how to use the IndoorAtlas SDK? I'm getting confused about how to show the floorPlan and getting current location. Please kindly help me. Here's very roughly how: 1) Initialize IndoorAtlas instance: IndoorAtlas ia = IndoorAtlasFactory.createIndoorAtlas(context, listener, apiKey, apiSecret); 2) Obtain instance of FloorPlan: FutureResult<FloorPlan> result = ia.fetchFloorPlan(floorPlanId); result.setCallback(new ResultCallback<FloorPlan>() { @Override public void onResult(final FloorPlan result) { mFloorPlan = result; loadFloorPlanImage(result); } // handle error

Indoor navigation hardware/software requirements for iOS

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I'm developing navigation system for my university as some kind of research activity. I'm using SVGKit to display floor plans. And now I need to provide user locationing service for navigation and tracking. So here's my questions: 1) Do I need some special hardware installed in university (Cisco MSE for example, or some cheaper analogues), or I can apply some software/technologies to our current hardware for server-side user location determining? If I do, what equipment do I need for it? I mean, it would be one unit for the whole university, or one per each floor, or what? 2) Q: Why doesn't

Ble scanning callback only get called several times then stopped

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I have 2 phones with Android 5.0.2, they both installed the latest Radius Beacon's App: Locate Beacon , meanwhile, I turned on 2 IBeacon sender, and can see the RSSI keep changing in both phone with the App. But when I tried to write some sample code to simulate above situation, I found the ble scan callback always stop get called after called 2 or 3 times , I initially suspect the 'Locate Beacon' may use different way, so I tried with 2 kinds of API, one is for old 4.4, and another is the new way introduced in android 5, but both the same behavior(but all running on android 5). the 4.4 one:

Indoor positioning on iOS with Core Location - not accurate?

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问题 Using the sample code provided from WWDC, I've been trying to write a simple proof-of-concept app that performs indoor positioning in my office building. I have a floor plan image and replaced the standard image in the demo code. I've also done the requisite mapping of GPS coordinates to pixels for the two anchor points. When I run the app in the simulator and specify static GPS coordinates, I see the position updated as expected in the simulator. When I run it on my phone, however, the

Show FloorPlan and get Location with IndoorAtlas

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问题 Is there any resource on how to use the IndoorAtlas SDK? I'm getting confused about how to show the floorPlan and getting current location. Please kindly help me. 回答1: Here's very roughly how: 1) Initialize IndoorAtlas instance: IndoorAtlas ia = IndoorAtlasFactory.createIndoorAtlas(context, listener, apiKey, apiSecret); 2) Obtain instance of FloorPlan: FutureResult<FloorPlan> result = ia.fetchFloorPlan(floorPlanId); result.setCallback(new ResultCallback<FloorPlan>() { @Override public void

Indoor navigation hardware/software requirements for iOS

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问题 I'm developing navigation system for my university as some kind of research activity. I'm using SVGKit to display floor plans. And now I need to provide user locationing service for navigation and tracking. So here's my questions: 1) Do I need some special hardware installed in university (Cisco MSE for example, or some cheaper analogues), or I can apply some software/technologies to our current hardware for server-side user location determining? If I do, what equipment do I need for it? I

Ble scanning callback only get called several times then stopped

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问题 I have 2 phones with Android 5.0.2, they both installed the latest Radius Beacon's App: Locate Beacon , meanwhile, I turned on 2 IBeacon sender, and can see the RSSI keep changing in both phone with the App. But when I tried to write some sample code to simulate above situation, I found the ble scan callback always stop get called after called 2 or 3 times , I initially suspect the 'Locate Beacon' may use different way, so I tried with 2 kinds of API, one is for old 4.4, and another is the