JIT-AI UWB client

This code run on a raspberry pi. It reads the coordinates from the UWB through serial port and store them in a remote database.

Architecture

                         +--------------------------------------------------+
                         |                                                  |
+----------------+       |    +----------------+          +------------+    |
|                |       |    |                |          |            |    |
|  Database      |       |    |  Raspberry PI  |  serial  |  Decawave  |    |
|  (PostGreSQL)  | <--------+ |  (Linux)       | <------+ |  device    |    |
|                |       |    |                |          |            |    |
+----------------+       |    +----------------+          +------------+    |
                         |                                                  |
       AWS               |                      WLAN                        |
                         |                                                  |
                         +--------------------------------------------------+

Installation

This package requires node 8+ and yarn. ForeverJS should also be used on the raspberry pi, so that the service can be restarted after a crash.

Node

curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
sudo apt-get install -y nodejs

Yarn

curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
sudo apt-get update && sudo apt-get install yarn

ForeverJS

npm i -g forever

Hardware

DWM1001 TWR Real Time Location System.

There are two ways to connect to the Decawave HW: UART or SPI. This project uses the UART through /dev/ttyACM0 It then enters the shell mode by printing 2 CR in less than one second and send the lec command to listen to the positions.

• User guide
• API guide