User Tools

Site Tools


icecondor

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

icecondor [2008/12/28 12:40]
71.237.252.103
icecondor [2016/06/25 11:25]
Line 1: Line 1:
-===== IceCondor: Open Source Location Broker ​ ===== 
-See http://​www.icecondor.com 
- 
-See [[icecondor:​usecases]] \\ 
-See [[icecondor:​API]] \\ 
-See [[icecondor:​location]] \\ 
-See [[icecondor:​androidclient]] \\ 
-See [[icecondor:​news]] \\ 
-See server [[icecondor:​benchmarks]] \\ 
-See [[icecondor:​battery]] usage \\ 
-See [[icecondor:​URLs]] \\ 
-See [[icecondor:​pigeon]] \\ 
-See [[icecondor:​graphics]] \\ 
-See [[icecondor:​roadmap]] ​ 
- 
-== terms == 
- 
-A point location is defined by lat/​long/​altitude. 
-An area location or polygon is defined by 3 or more point locations. 
-A track point is a point location or area location plus a time. 
-A 3d polygon? 
- 
-== accuracy estimate == 
-The openmoko app, tangogps, introduced me to a new GPS concept - Horizontal/​Vertial Dilution of Precision. ​ the V-DOP/H-DOP value will help generate an an accuracy estimate. A high VDOP means a low accuracy so take a larger area and low confidence as the object'​s location. The location record will store a range in meters, centered on the given lat/long that gives a confidence to the location. 
- 
-== search ​ == 
-build a set of filters from the following. use a filter language/​DSL?​ 
-  * geo - location, radius 
-  * geo - polygon (set of points) 
-  * object type - person, business, event 
-  * record creation date 
-  * user id 
- 
-== publish/​subscribe == 
-I want to be notified when the results of a search are positive, or have result count of X. examples: 
-  * user A moves into/outof polygon B (in 3D space, could be in an elevator etc) 
-  * a filter set for polygon A results in X or more objects (eg. favorite bar has 4 or more friends) 
- 
-A list of notification triggers would be managed. 
- 
-== clients == 
-  * unix command line 
-  * unix daemon 
-  * android app (see [[dotcom:​androidsociallocationnetwork]]) 
-  * web site 
- 
-== technology == 
-language possibilities: ​ 
-  * erlang 
-  * ruby 
-  * java 
- 
-database: 
-  * postgresql + postGIS extension 
-  * couchdb 
- 
-access protocols: 
-  * HTML 
-  * XMPP 
-  * OAUTH / OpenID 
- 
-== URLs == 
-object being tracked: /​object/<​name>​ \\ 
-one object at one location: /​location/<​guid>​ 
- 
-== possible directions == 
-Distributed. Each IceCondor installation (node) uses a distributed hash table to store location records. Nodes can be added to the network easily and once added, its data is searchable by any other node. Using a DHT for storage would loose the benefits of postGIS for lat/long queries. Hadoop? 
- 
  
icecondor.txt ยท Last modified: 2016/06/25 11:25 (external edit)