public void Initialise(EngineRoomServiceDB erdb)
{
DBRow row = erdb.GetLatestEvent(EngineRoomServiceDB.LogEventType.ON, ID);
if (row != null)
{
LastOn = row.GetDateTime("created");
}
row = erdb.GetLatestEvent(EngineRoomServiceDB.LogEventType.OFF, ID);
if (row != null)
{
LastOff = row.GetDateTime("created");
}
DBRow enabled = erdb.GetLatestEvent(EngineRoomServiceDB.LogEventType.ENABLE, ID);
DBRow disabled = erdb.GetLatestEvent(EngineRoomServiceDB.LogEventType.DISABLE, ID);
bool enable = true;
if (disabled != null)
{
enable = enabled == null ? false : enabled.GetDateTime("created").Ticks > disabled.GetDateTime("created").Ticks;
}
else if (enabled != null)
{
enable = true;
}
Enable(enable);
String desc = String.Format("Initialised engine {0} ... engine is {1}", ID, Enabled ? "enabled" : "disabled");
erdb.LogEvent(EngineRoomServiceDB.LogEventType.INITIALISE, ID, desc);
}
protected override void OnStart(string[] args)
{
try
{
Tracing?.TraceEvent(TraceEventType.Information, 0, "Connecting to Engine Room database...");
_erdb = EngineRoomServiceDB.Create(Properties.Settings.Default, "EngineRoomDBName");
Tracing?.TraceEvent(TraceEventType.Information, 0, "Connected to Engine Room database");
_erdb.GetLatestEvent(EngineRoomServiceDB.LogEventType.CONNECT, EngineRoomServiceDB.LogEventType.DISCONNECT, "BBEngineRoom");
Tracing?.TraceEvent(TraceEventType.Information, 0, "Creating state log timer at {0} intervals", TIMER_STATE_LOG_INTERVAL);
_timerStateLog = new System.Timers.Timer();
_timerStateLog.Interval = TIMER_STATE_LOG_INTERVAL;
_timerStateLog.Elapsed += OnStateLogTimer;
Tracing?.TraceEvent(TraceEventType.Information, 0, "Creating montior engine room timer at {0} intervals", TIMER_MONITOR_ENGINE_ROOM_INTERVAL);
_timerMonitorEngineRoom = new System.Timers.Timer();
_timerMonitorEngineRoom.Interval = TIMER_MONITOR_ENGINE_ROOM_INTERVAL;
_timerMonitorEngineRoom.Elapsed += OnMonitorEngineRoomTimer;
}
catch (Exception e)
{
Tracing?.TraceEvent(TraceEventType.Error, 0, e.Message);
throw e;
}
base.OnStart(args);
}
public void Initialise(EngineRoomServiceDB erdb)
{
DBRow enabled = erdb.GetLatestEvent(EngineRoomServiceDB.LogEventType.ENABLE, ID);
DBRow disabled = erdb.GetLatestEvent(EngineRoomServiceDB.LogEventType.DISABLE, ID);
bool enable = true;
if (disabled != null)
{
enable = enabled == null ? false : enabled.GetDateTime("created").Ticks > disabled.GetDateTime("created").Ticks;
}
else if (enabled != null)
{
enable = true;
}
Enable(enable);
_initialisedAt = DateTime.Now;
String desc = String.Format("Initialised {0} water tanks ... tanks are {1}", Tanks.Count, Enabled ? "enabled" : "disabled");
erdb.LogEvent(EngineRoomServiceDB.LogEventType.INITIALISE, ID, desc);
}
public void Monitor(EngineRoomServiceDB erdb, List <Message> messages, bool returnEventsOnly)
{
if (!Enabled)
{
return;
}
EngineRoomServiceDB.LogEventType let = EngineRoomServiceDB.LogEventType.INFO;
String desc = null;
Message msg = null;
//see if engine is Running (and log)
bool running = Running; // record to test change of state
Running = RPM.AverageRPM > IS_RUNNING_RPM_THRESHOLD;
bool isEvent = running != Running;
//Running or not
if (isEvent) //log
{
if (Running)
{
erdb.LogEvent(EngineRoomServiceDB.LogEventType.ON, ID, String.Format("Current RPM = {0}", RPM.RPM));
LastOn = erdb.GetLatestEvent(EngineRoomServiceDB.LogEventType.ON, ID).GetDateTime("created");
}
else
{
desc = LastOn == default(DateTime) ? "N/A" : String.Format("Running for {0}", (DateTime.Now - LastOn).ToString("c"));
erdb.LogEvent(EngineRoomServiceDB.LogEventType.OFF, ID, desc);
LastOff = erdb.GetLatestEvent(EngineRoomServiceDB.LogEventType.OFF, ID).GetDateTime("created");
}
}
if (isEvent || !returnEventsOnly)
{
EngineRoomMessageSchema schema = new EngineRoomMessageSchema(new Message(MessageType.DATA));
schema.AddEngine(this);
messages.Add(schema.Message);
}
//some useful durations...
long secsSinceLastOn = LastOn == default(DateTime) ? -1 : (long)DateTime.Now.Subtract(LastOn).TotalSeconds;
long secsSinceLastOff = LastOff == default(DateTime) ? -1 : (long)DateTime.Now.Subtract(LastOff).TotalSeconds;
//Oil State
OilState oilState = StateOfOil;
if (Running && RPM.RPM > 100 && secsSinceLastOn > 30)
{
oilState = OilSensor.IsOn ? OilState.NO_PRESSURE : OilState.OK_ENGINE_ON;
}
else if (!Running && RPM.RPM == 0 && secsSinceLastOff > 30)
{
oilState = OilSensor.IsOff ? OilState.SENSOR_FAULT : OilState.OK_ENGINE_OFF;
}
msg = null;
isEvent = oilState != StateOfOil;
StateOfOil = oilState;
String rpmDesc = String.Format("RPM (instant/average) = {0}/{1}", RPM.RPM, RPM.AverageRPM);
switch (StateOfOil)
{
case OilState.NO_PRESSURE:
let = EngineRoomServiceDB.LogEventType.WARNING;
desc = String.Format("Engine {0} Oil sensor {1} gives {2} ... {3}", Running ? "running for " + secsSinceLastOn : "off for " + secsSinceLastOff, OilSensor.State, StateOfOil, rpmDesc);
msg = BBAlarmsService.AlarmsMessageSchema.AlertAlarmStateChange(OilSensor.ID, BBAlarmsService.AlarmState.SEVERE, desc);
break;
case OilState.SENSOR_FAULT:
let = EngineRoomServiceDB.LogEventType.WARNING;
desc = String.Format("Engine {0} Oil sensor {1} gives {2} ... {3}", Running ? "running for " + secsSinceLastOn : "off for " + secsSinceLastOff, OilSensor.State, StateOfOil, rpmDesc);
msg = BBAlarmsService.AlarmsMessageSchema.AlertAlarmStateChange(OilSensor.ID, BBAlarmsService.AlarmState.MODERATE, desc);
break;
case OilState.OK_ENGINE_OFF:
case OilState.OK_ENGINE_ON:
let = EngineRoomServiceDB.LogEventType.INFO;
desc = String.Format("Engine {0} Oil sensor {1} gives {2}... {3}", Running ? "running for " + secsSinceLastOn : "off for " + secsSinceLastOff, OilSensor.State, StateOfOil, rpmDesc);
msg = BBAlarmsService.AlarmsMessageSchema.AlertAlarmStateChange(OilSensor.ID, BBAlarmsService.AlarmState.OFF, desc);
break;
}
if (msg != null && (isEvent || !returnEventsOnly))
{
messages.Add(msg);
if (isEvent)
{
erdb.LogEvent(let, OilSensor.ID, desc);
}
}
//Temp state
TemperatureState tempState = StateOfTemperature; //keep a record
if (!Running || (TempSensor.AverageTemperature <= TemperatureThresholds[TemperatureState.OK]))
{
StateOfTemperature = TemperatureState.OK;
}
else if (TempSensor.AverageTemperature <= TemperatureThresholds[TemperatureState.HOT])
{
StateOfTemperature = TemperatureState.HOT;
}
else
{
StateOfTemperature = TemperatureState.TOO_HOT;
}
msg = null;
isEvent = tempState != StateOfTemperature;
switch (StateOfTemperature)
{
case TemperatureState.TOO_HOT:
let = EngineRoomServiceDB.LogEventType.WARNING;
desc = String.Format("Temp sensor: {0} {1}", TempSensor.AverageTemperature, StateOfTemperature);
msg = BBAlarmsService.AlarmsMessageSchema.AlertAlarmStateChange(TempSensor.ID, BBAlarmsService.AlarmState.CRITICAL, desc);
break;
case TemperatureState.HOT:
let = EngineRoomServiceDB.LogEventType.WARNING;
desc = String.Format("Temp sensor: {0} {1}", TempSensor.AverageTemperature, StateOfTemperature);
msg = BBAlarmsService.AlarmsMessageSchema.AlertAlarmStateChange(TempSensor.ID, BBAlarmsService.AlarmState.SEVERE, desc);
break;
case TemperatureState.OK:
let = EngineRoomServiceDB.LogEventType.INFO;
desc = String.Format("Temp sensor: {0} {1}", TempSensor.AverageTemperature, StateOfTemperature);
msg = BBAlarmsService.AlarmsMessageSchema.AlertAlarmStateChange(TempSensor.ID, BBAlarmsService.AlarmState.OFF, desc);
break;
}
if (msg != null && (isEvent || !returnEventsOnly))
{
messages.Add(msg);
if (isEvent)
{
erdb.LogEvent(let, TempSensor.ID, desc);
}
}
//RPM state
RPMState rpmState = StateOfRPM;
if (!Running)
{
StateOfRPM = RPMState.OFF;
}
else if (secsSinceLastOn > 10)
{
if (RPM.AverageRPM < RPMThresholds[RPMState.SLOW])
{
StateOfRPM = RPMState.SLOW;
}
else if (RPM.AverageRPM < RPMThresholds[RPMState.NORMAL])
{
StateOfRPM = RPMState.NORMAL;
}
else if (RPM.AverageRPM < RPMThresholds[RPMState.FAST])
{
StateOfRPM = RPMState.FAST;
}
else
{
StateOfRPM = RPMState.TOO_FAST;
}
}
msg = null;
isEvent = rpmState != StateOfRPM;
switch (StateOfRPM)
{
case RPMState.OFF:
case RPMState.SLOW:
case RPMState.NORMAL:
let = EngineRoomServiceDB.LogEventType.INFO;
desc = String.Format("RPM (Instant/Average): {0}/{1} gives state {2}", RPM.RPM, RPM.AverageRPM, StateOfRPM);
msg = BBAlarmsService.AlarmsMessageSchema.AlertAlarmStateChange(RPM.ID, BBAlarmsService.AlarmState.OFF, desc);
break;
case RPMState.FAST:
let = EngineRoomServiceDB.LogEventType.WARNING;
desc = String.Format("RPM (Instant/Average): {0}/{1} gives state {2}", RPM.RPM, RPM.AverageRPM, StateOfRPM);
msg = BBAlarmsService.AlarmsMessageSchema.AlertAlarmStateChange(RPM.ID, BBAlarmsService.AlarmState.MODERATE, desc);
break;
case RPMState.TOO_FAST:
let = EngineRoomServiceDB.LogEventType.WARNING;
desc = String.Format("RPM (Instant/Average): {0}/{1} gives state {2}", RPM.RPM, RPM.AverageRPM, StateOfRPM);
msg = BBAlarmsService.AlarmsMessageSchema.AlertAlarmStateChange(RPM.ID, BBAlarmsService.AlarmState.SEVERE, desc);
break;
}
if (msg != null && (isEvent || !returnEventsOnly))
{
messages.Add(msg);
if (isEvent)
{
erdb.LogEvent(let, RPM.ID, desc);
}
}
}
