localization

Localization ROS package for range sensors, i.e. ultra wide-band (UWB).

This repo also provides sensor fusion for multi-source, e.g. Optical Flow and Visual SLAM.

Preparation

Only verified with ROS kinetic on Ubuntu 16.04.

Install dependencies:

sudo apt-get update

sudo apt install python-pip

sudo pip install --user numpy scipy matplotlib ipython jupyter pandas sympy nose

sudo easy_install -U statsmodels

sudo apt install libcholmod3.0.6 libcsparse3.1.4 libsuitesparse-dev python-cvxopt 

sudo apt install ros-kinetic-hector-trajectory-server

Install G2O from source. Download g2o to your non-ros source folder, make and install:

git clone https://github.com/RainerKuemmerle/g2o

Please checkout the following commit for compatibility.

cd g2o ; git checkout deafc01ee8315b9405351fb145238c5d62f82dc7
mkdir build ; cd build
cmake .. ; make -j4
sudo make install

Download uwb_driver to your ros workspace and install its dependencies:

git clone https://github.com/wang-chen/uwb_driver.git
sudo apt-get install ros-kinetic-serial

New support for UWB from bitcrazy:

please find its driver on:
https://github.com/wang-chen/lps-ros

To use UWB from bitcrazy, comment the following line in the CMakeLists.txt

add_definitions(-DTIME_DOMAIN)

Usage

1. The following ROS param should be set before the program is started

/uwb/nodesId: an array, the IDs of the UWB anchors (the last ID is the moving module to be localized)
/uwb/nodesPos: an array, the postions (x, y, z) of the UWB anchors (the last three elements, is the initial postion of the moving module to be localized)
/uwb/antennaOffset: the antenna offset on the moving module, there may be multiple antennas. DONOT SET IT IF THERE IS NO OFFSET  

One example can be found in the uwb_driver repo:

https://github.com/wang-chen/uwb_driver/blob/master/cfg/anchor.yaml

2. Program Parameters

It can be set by modifying the yaml files in the cfg folder.
Include the specific yaml file in your launch file. 
For example, the "uwb_only.yaml" sets parameters for uwb-only localization.

3. Topic subscriber

This localizaiton repo subsribes the specific sensor measurement topic.
Make sure they are published before the program is started.
The topic name can also be changed in the aformentioned yaml files.

If you are interested in this work, you may cite:

@article{wang2018graph,
  title={{Graph Optimization Approach to Localization with Range Measurements}},
  author={Fang, Xu and Wang, Chen and Nguyen, Thien-Minh and Xie, Lihua},
  journal={arXiv preprint arXiv:1802.10276},
  year={2018},
  month=feb
}

@inproceedings{wang:iros2017,
  author = {Wang, Chen and Zhang, Handuo and  Nguyen, Thien-Minh and Xie, Lihua},
  title = {{Ultra-Wideband Aided Fast Localization and Mapping System}},
  booktitle={IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)},
  year = {2017},
  pages={1602--1609},
  month = sep
}

@inproceedings{wang2018correlation,
  title={{Correlation Flow: Robust Optical Flow using Kernel Cross-Correlators}},
  author={Wang, Chen and Ji, Tete and Nguyen, Thien-Minh and Xie, Lihua},
  booktitle={International Conference on Robotics and Automation (ICRA)},
  year={2018},
  pages = {836--841},
  organization={IEEE},
  month = may
}