|
| 1 | +import random |
| 2 | +import math |
| 3 | +import datetime |
| 4 | +import uuid |
| 5 | +import time |
| 6 | +import logging |
| 7 | +import json |
| 8 | +import paho.mqtt.client as mqtt |
| 9 | +from kaa_client import KaaClient, CommandsDto, ConfigurationStatusResponseDto |
| 10 | +from paho.mqtt.client import MQTTMessage |
| 11 | + |
| 12 | +class Vehicle(object): |
| 13 | + def __init__(self, client: KaaClient): |
| 14 | + self.kaa_client = client |
| 15 | + self.time = time.time() |
| 16 | + self.config = { |
| 17 | + "maxSpeed": 185, |
| 18 | + "maxRange": 555, |
| 19 | + "maintenanceInterval": 15000, |
| 20 | + "climateSetpoint": 21 |
| 21 | + } |
| 22 | + |
| 23 | + self.mileage = random.randint(0, 200) |
| 24 | + self.routes = json.load(open('./routes.json')) |
| 25 | + self.route_point = -1 |
| 26 | + |
| 27 | + self.engine = 1 |
| 28 | + self.trunk = 1 |
| 29 | + self.windows = 1 |
| 30 | + self.lock = 1 |
| 31 | + self.lights = 0 |
| 32 | + self.beep = 0 |
| 33 | + self.climate = 1 |
| 34 | + |
| 35 | + self.statuses = ['engine', 'trunk', 'windows', 'lock', 'lights', 'beep', 'climate'] |
| 36 | + |
| 37 | + self.range = self.config['maxRange'] |
| 38 | + self.metadata = { |
| 39 | + 'name': "Vehicle 1", |
| 40 | + 'lon': -0.0395317, |
| 41 | + 'lat': 51.5025671, |
| 42 | + 'engine': "gasoline", |
| 43 | + 'model': "Boxster", |
| 44 | + 'brand': "Porsche", |
| 45 | + 'year': "2019", |
| 46 | + 'maxSpeed': 265, |
| 47 | + 'maxRange': 447, |
| 48 | + 'power': 256, |
| 49 | + 'Address': "Dock Hill Ave, Rotherhithe, London SE16 6AX, United Kingdom" |
| 50 | + } |
| 51 | + |
| 52 | + def get_device_metadata(self): |
| 53 | + self.metadata["lastMaintenance"] = str(datetime.datetime.now()) |
| 54 | + self.metadata["serial"] = str(uuid.uuid4()) |
| 55 | + return self.metadata |
| 56 | + |
| 57 | + """ |
| 58 | + Generates tiers data |
| 59 | + """ |
| 60 | + def get_tiers_data(self): |
| 61 | + if self.engine == 0: |
| 62 | + return {} |
| 63 | + else: |
| 64 | + front_tires = random.uniform(2.35, 2.4) |
| 65 | + rear_tires = random.uniform(2.2, 2.3) |
| 66 | + |
| 67 | + return { |
| 68 | + 'tiers': { |
| 69 | + 'front_left': front_tires, |
| 70 | + 'front_right': front_tires, |
| 71 | + 'back_left': rear_tires, |
| 72 | + 'back_right': rear_tires |
| 73 | + } |
| 74 | + } |
| 75 | + |
| 76 | + """ |
| 77 | + Generates hill assist data |
| 78 | + """ |
| 79 | + def get_hill_assist_data(self): |
| 80 | + if self.engine == 0: |
| 81 | + return {} |
| 82 | + else: |
| 83 | + return { |
| 84 | + 'gyro_x': random.randint(0, 20), |
| 85 | + 'gyro_y': random.randint(0, 15), |
| 86 | + 'gyro_z': random.randint(0, 5), |
| 87 | + } |
| 88 | + |
| 89 | + def get_climate_data(self): |
| 90 | + if self.engine == 0: |
| 91 | + return {} |
| 92 | + else: |
| 93 | + now = datetime.datetime.now() |
| 94 | + return { |
| 95 | + 'climate_temperature': (self.config['climateSetpoint'] - 3) + 3 * math.cos(now.minute + now.second/60.0) |
| 96 | + } |
| 97 | + |
| 98 | + """ |
| 99 | + Generates engine data |
| 100 | + """ |
| 101 | + def get_engine_data(self): |
| 102 | + if self.engine == 0: |
| 103 | + return {} |
| 104 | + else: |
| 105 | + self.mileage += random.randint(10, 40) |
| 106 | + self.range -= random.randint(1, 5) |
| 107 | + |
| 108 | + if self.range < 0: |
| 109 | + self.range = self.config['maxRange'] |
| 110 | + self.kaa_client.publish_data_collection({ |
| 111 | + 'log': { |
| 112 | + 'message': 'Max range exceeded. Vehicle filled up', |
| 113 | + 'location': 'UK, London' |
| 114 | + } |
| 115 | + }) |
| 116 | + |
| 117 | + maintenance_in = self.config['maintenanceInterval'] - self.mileage |
| 118 | + |
| 119 | + return { |
| 120 | + 'speed': random.randint(40, 110), |
| 121 | + 'rpm': random.randint(600, 2000), |
| 122 | + 'mileage': self.mileage, |
| 123 | + 'range': self.range, |
| 124 | + 'maintenance_in': 0 if maintenance_in < 0 else maintenance_in, |
| 125 | + 'engine_temperature': random.randint(62, 95) |
| 126 | + } |
| 127 | + |
| 128 | + """ |
| 129 | + Generates location data |
| 130 | + """ |
| 131 | + def get_location_data(self): |
| 132 | + if self.engine == 0: |
| 133 | + return {} |
| 134 | + else: |
| 135 | + next_point = [self.metadata['lat'], self.metadata['lon']] |
| 136 | + |
| 137 | + try: |
| 138 | + self.route_point += 1 |
| 139 | + next_point = self.routes[self.route_point] |
| 140 | + except: |
| 141 | + self.route_point = 0 |
| 142 | + next_point = self.routes[self.route_point] |
| 143 | + |
| 144 | + return { |
| 145 | + 'location': { |
| 146 | + 'lat': next_point[0], |
| 147 | + 'lon': next_point[1] |
| 148 | + } |
| 149 | + } |
| 150 | + |
| 151 | + """ |
| 152 | + Generates telemetry data sample. |
| 153 | + """ |
| 154 | + def get_data_sample(self): |
| 155 | + data = {} |
| 156 | + |
| 157 | + for name in self.statuses: |
| 158 | + data[f"{name}_status"] = getattr(self, name) |
| 159 | + |
| 160 | + data.update(self.get_tiers_data()) |
| 161 | + data.update(self.get_engine_data()) |
| 162 | + data.update(self.get_hill_assist_data()) |
| 163 | + data.update(self.get_location_data()) |
| 164 | + data.update(self.get_climate_data()) |
| 165 | + |
| 166 | + return data |
| 167 | + |
| 168 | + """ |
| 169 | + Logs command as telemetry |
| 170 | + """ |
| 171 | + def log_command(self, key: str, value: int): |
| 172 | + messages = { |
| 173 | + 'engine': {0: 'Engine off', 1: 'Engine on'}, |
| 174 | + 'trunk': {0: 'Trunk closed', 1: 'Trunk opened'}, |
| 175 | + 'windows': {0: 'Windows closed', 1: 'Windows opened'}, |
| 176 | + 'lock': {0: 'Car locked', 1: 'Car opened'}, |
| 177 | + 'beep': {0: 'Horn sound off', 1: 'Horn on'}, |
| 178 | + 'climate': {0: 'AC off', 1: 'AC on'} |
| 179 | + } |
| 180 | + if key in messages: |
| 181 | + self.kaa_client.publish_data_collection({ |
| 182 | + 'log': { |
| 183 | + 'message': messages[key][value], |
| 184 | + 'location': 'UK, London' |
| 185 | + } |
| 186 | + }) |
| 187 | + |
| 188 | + """ |
| 189 | + command name: remote_toggle |
| 190 | + example of payloads: |
| 191 | + Can be one or combination of keys: |
| 192 | + { |
| 193 | + "engine": 1, |
| 194 | + "trunk": 1, |
| 195 | + "windows": 1, |
| 196 | + "lock": 1, |
| 197 | + "lights": 0, |
| 198 | + "beep": 0, |
| 199 | + "climate": 1 |
| 200 | + } |
| 201 | + """ |
| 202 | + def sensor_toggle(self, client: mqtt.Client, userdata, message: MQTTMessage): |
| 203 | + command_payload = str(message.payload.decode('utf-8')) |
| 204 | + logging.info(f"Received command: [{message.topic}] []") |
| 205 | + response_topic = KaaClient.get_command_response_topic( |
| 206 | + message, "remote_toggle") |
| 207 | + commands = CommandsDto(command_payload).get_command_responses() |
| 208 | + for command in commands: |
| 209 | + try: |
| 210 | + for key in command.payload.keys(): |
| 211 | + payload_value = int(command.payload[key]) |
| 212 | + setattr(self, key, payload_value) |
| 213 | + command.status_code = 200 |
| 214 | + command.payload[key] = "status changed" |
| 215 | + self.log_command(key, payload_value) |
| 216 | + except Exception as error: |
| 217 | + logging.error( |
| 218 | + f"Invalid command payload [{error}] [{command.to_dict()}]") |
| 219 | + client.publish( |
| 220 | + response_topic, self.kaa_client.compose_commands_result(commands)) |
| 221 | + |
| 222 | + """ |
| 223 | + Handle values `maxSpeed`, `maxRange`, `maintenanceInterval`, `climateSetpoint` published from configuration. |
| 224 | + """ |
| 225 | + def configuration_handler(self, client: mqtt.Client, userdata, message): |
| 226 | + configuration_payload = str(message.payload.decode('utf-8')) |
| 227 | + logging.info("Received configuration") |
| 228 | + config = ConfigurationStatusResponseDto( |
| 229 | + configuration_payload).to_dict()["config"] |
| 230 | + if configuration_payload: |
| 231 | + for key in config.keys(): |
| 232 | + self.config[key] = config[key] |
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