Subversion Repositories heating

/*

 * Copyright (C) 2015 by Andreas Theofilu. All rights reserved!

 *

 * All rights reserved. No warranty, explicit or implicit, provided.

 *

 * NOTICE:  All information contained herein is, and remains

 * the property of Andreas Theofilu and his suppliers, if any.

 * The intellectual and technical concepts contained

 * herein are proprietary to Andreas Theofilu and its suppliers and

 * may be covered by European and Foreign Patents, patents in process,

 * and are protected by trade secret or copyright law.

 * Dissemination of this information or reproduction of this material

 * is strictly forbidden unless prior written permission is obtained

 * from Andreas Theofilu.

 * 

 * Author: Andreas Theofilu <andreas@theosys.at>

 */

#ifndef __HEATING_H__

#define __HEATING_H__

#include "helper.h"

#include "temperature.h"

#include "html.h"

/*

 * Purpose:

 * There can be an unlimited number of rooms defined. For every room you can

 * define different temperatures. The type "HSTAT" defines the actual status

 * of the room.

 * 

 * Status NORMAL: This is the normal operating of the heating during the day.

 *                The heating will hold the temperature set in "soll"

 * 

 * Status NIGHT:  This is the mode for the night. the heating will hold the

 *                temperature set in "night".

 * 

 * Status OFF:    This indicates, the heating for a particular room was switched

 *                off. In this case the heating makes sure, that the temperature

 *                will not fall beyond the temperature set in "minimal".

 * 

 * There are global settingsto sitch the heating off or on. If the heating was

 * set globaly off, a globaly defined minimal temperature will be hold.

 * 

 * If the heating is switched on, it operated individually for every room and

 * tries to hold the temperature set individual in a room.

 */

class heating : private temperature

{

	public:

		enum HSTAT

		{

			NORMAL,

			NIGHT,

			OFF

		};

		typedef struct HTABLE

		{

			double tempDifferOut;	// Difference of outside temperature to soll temperature

			double tempDifferIn;	// Difference off current temperature in the room to soll temperature

			time_t heat;			// time in seconds needed to heat up to soll temperature

			time_t start;			// start time of heating in case we've no time already

			HTABLE *next;			// Pointer to next element of table

		}HTABLE;

		typedef struct HCONF

		{

			// By config file set variables

			char rname[32];

			int rnum;

			int tempsensor;			// Number of temperature sensor (depends on method of how temperature is meassured)

			int gpio;				// GPIO number where relais for valve is connected

			double soll;			// The temperature that should be

			double night;			// The reduced temperature for night

			double minimal;			// The minimal temperature

			time_t start;			// The time the heating should have reached the "soll" temperature (if normal is set)

			time_t end;				// The time the heating should end normal mode and start "night" mode.

			time_t wstart;			// The time the work day start and heating is reduced to night mode (if normal is set)

			time_t wend;			// The time the heating should start normal mode again.

			// Internal used variables

			double ist;				// The real temperature

			HSTAT status;			// The status of the room

			bool valve;				// true = valve is open

			HTABLE *hTable;			// Pointer to heating table

			HCONF *next;

		}HCONF;

	public:

		heating();

		~heating();

		void run();										// Ask for actual temperature in every room all the time

		void stopRun() { rstop = true; }				// Stop asking for temperature

		bool statusRun()  { return rrun; }				// true = temperature request is running

		time_t strToTime(char *str);					// Convert a time string into a time value

		bool isInitialized() { return initialized; }	// Is true as soon as the class was initialized successfuly

		double incSoll(int room);						// Increment soll by 1/2 °C

		double decSoll(int room);						// Decrement soll by 1/2 °C

		void setSoll(int room, double val);				// Set temperature soll in room "room"

		void setNight(int room, double val);			// Set temperature for night mode

		void setMinimal(int room, double val);			// Set temperature for off mode. This is a minimal temperature.

		bool switchOnOff(bool what);					// false = off; this is the off mode with minimal temperature. true = normal operating

		bool getOnOff() { return onoff; }				// Is the heating activated? true = yes

		double getGlbNight() { return glb_night; }		// Retrieve the global temperature for night mode

		double getGlbMinimal() { return glb_minimal; }	// Retrieve the global temperature for off mode

		double getNight(int room);						// Retrieve the optional temperature in a particular room for night mode

		double getMinimal(int room);					// Retrieve the optional temperature in a particular room for off mode

		void setHandle(int fd);							// Add the handle to a connected client to return messages directly

		void removeHandle(int fd);						// Remove a previous added handle

		void getConfig(int s1);							// Returns the configuration of all rooms to a connected client

		void pthrTemps();								// Thread function to request all temperatures

		void pthrHtml();								// Thread function for a HTML server

	private:

		enum CNFSTAT

		{

			NONE,

			GLOBAL,

			ROOM

		};

	private:

		bool readConf();

		HCONF *appendHConf();

		HTABLE* appendHTable(HCONF *ht);

		void destroyHConf();

		bool buildDB();

		HCONF *findRoom(int room);

		void answer(std::string msg);

		std::string timeToStr(time_t t);

		time_t getTime();

		void applyConfig();								// Transfers the actual configuration to HTML server

		void startHeat(int room) { controlHeat(room, true); }

		void stopHeat(int room) { controlHeat(room, false); }

		void controlHeat(int room, bool stst);			// Controles the valves via the GPIO ports

		bool evaluateTemp(int room, double temp);		// Evaluates the current temperature and calculates the time

														// to reach the soll temperature. It return true if the heating

														// should start. Otherwise it returns false.

		HCONF *HeatConf;								// Pointer to the heating configuration for every room

		double glb_minimal;								// The global temperature for normal (day) mode

		double glb_night;								// The global temperature for night mode

		bool onoff;										// True if heating is in normal or night mode

		int rm;											// Counter for room numbers

		bool initialized;								// True if everything was successfully initialized

		bool rstop;										// True if runtime loop should stop

		bool rrun;										// True if runtime loop is active

		int s1[100];									// Handle to connected client(s)

		int outSensor;									// The number of the outside temperature sensor

		html *HtmlServer;								// Pointer to HTML server running in background

};

#endif