sim7600g-gps-collector's Introduction

sim7600g-gps-collector

A GPS collection package to monitor Pis in the wild
Tested on Raspbian using a Raspberry Pi 4B and Raspberry Pi Zero W with this hat: https://www.waveshare.com/wiki/SIM7600G-H_4G_HAT
Sometimes you lose /dev/ttyUSB1 which is needed for GPS. This program will restart if it detects that /dev/ttyUSB1 is missing. V3 runs two perl threads - one that monitors the data connection with a ping to Google, and the other checks for TPV data in calls to gpspipe -w. Each issue will be addressed separately by the responsible thread

Setup

Create a new database in mysql for this project: i.e create database gps
See sim7600g.sql. Create a table with these columns
Create a database user for the next step: create user ingest@'%' identified by a_password
Grant insert privs on the gps database.table you made earlier grant insert on gps.gps to ingest@'%'
See https://github.com/jrcichra/ingestd. Spin up this docker container on your server, specifying your mysql database as described. This tool ingests data from HTTP POSTS into a database
ingestd should start up and be listening for data

Modify constants at the top of gps_collector/gps_collector.go to point to the appropriate URL/database/table
I've included some simple make targets to help installation
(You'll need a recent version of the Go compiler)
sudo make install compiles the Go code, places binaries/scripts in /usr/local/bin, and enables the systemd targets
sudo make uninstall removes what was added to /usr/local/bin and instantly disables the systemd targets.
Modify /etc/default/gpsd and set DEVICES="/dev/ttyUSB1"
sudo systemctl daemon-reload
sudo systemctl restart gpsd

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