DfLjs is a Device-free Localization example in JavaScript. A particle filter is used to track a person, by observing his/her shadowing effect on Bluetooth signals between beacons. The code provided here contains an implementation of the auxiliary particle filter-based Probability Hypothesis Density filter (as presented by S. Nannuru in http://networks.ece.mcgill.ca/sites/default/files/PhD_Thesis_Santosh.pdf) and a small simulated environment for demonstration.
This project is no longer maintained.
Before the demonstration can be used, the project needs to be built.
Download dependencies by running npm install in the project folder.
Then, build the project using npm run build-js.
Open www/index.html.
First add a platform to cordova. From the dfljs/ folder: cordova platform add ....
Then use cordova build ... and cordova run ... to run the project.
(Note: this project has not been tested on mobile devices)