Sensor for Ekylibre

simulate-sensors

#!/usr/bin/env ruby
require 'colored'
require 'rest-client'
require 'yaml'
require 'pathname'

sensors = [
  {
    name: "SNS01",
    token: "Y7OQ54T64m3DJtFG",
  },
  {
    name: "SNS02",
    token: "NDhohqCHJ6ffA7wg"
  },
  {
    name: "SNS03",
    token: "LP2HK8ZVtcMJfz2J"
  }
]

last_data_file = Pathname.new("last-data.yml")

loop do
  sensor = sensors.sample
  puts sensor[:name]
  name = sensor[:name]

  last_data = last_data_file.exist? ? YAML.load_file(last_data_file) : {}
  last_data = {} unless last_data.is_a?(Hash)
  last_data[name] ||= {}
  
  items = last_data[name]
  items[:temperature] ||= 25
  items[:temperature] += 2 * (rand - 0.5)
  items[:net_mass] ||= 45
  items[:net_mass] += 1 * (rand - 0.5)
  items[:vlat] ||= 0
  items[:vlat] += (0.1 * items[:vlat] + 0.0001) * (rand - 0.5)
  items[:vlon] ||= 0
  items[:vlon] += (0.1 * items[:vlon] + 0.0001) * (rand - 0.5)
  items[:lat] ||= 44.79565 + 0.005 * (rand - 0.5)
  items[:lat] += items[:vlat]
  items[:lon] ||= -0.62289 + 0.005 * (rand - 0.5)
  items[:lon] += items[:vlon]

  body = {token: sensor[:token], items: { temperature: "#{items[:temperature]}celsius", net_mass: "#{items[:net_mass]}kg" }, latlon: [items[:lat], items[:lon]]}
  puts body.to_json.green
  
  
  RestClient.post 'http://test.ekylibre.lan:8080/iot/v1/a', body.to_json, content_type: :json
  # Or more simply: RestClient.post 'http://test.ekylibre.lan:8080/iot/v1/a', body

  File.write(last_data_file, last_data.to_yaml)
  
  duration = (2.8 * rand).round(3)
  puts "Sleep #{duration.to_s.yellow}s..."
  sleep(duration)
end