source: tmcsimulator/branches/FEPSimulator/network.h @ 219

#ifndef __NETWORK_H_INCLUDED__

#define __NETWORK_H_INCLUDED__



#include <stdlib.h>

#include <math.h>

#include <vector>



using namespace std;



/*** CONSTANTS ***/

const int Fixed_Byte_To_Checksum = 25; // the first byte is not considered 

                                       //in the calculation of "BYTE 2"

const int CONTROL_DATA_LEN = 27;



// loop detector / lane type arrays

char * const dp5[8] = { "ML_1", "ML_2", "ML_3", "ML_4", "ML_5",

                                                "ML_6", "HOV_Lane", "FYW_Conn"};

char * const dp6[8] = { "OS_1", "OS_2", "OS_3", "OS_4", "OS_5",

                                                "OS_6", "COLL_DIST_2", "COLL_DIST_OFF"};

char * const dp7[8] = { "DEMAND", "PASSAGE", "QUEUE", "RAMP_ON",

                                                "RAMP_OFF", "RAMP_HOV", "COLL_DIST_1", "COLL_DIST_ON"};

char * const dp8[8] = { "SD_1", "SD_2", "SD_3", "SD_4", "SD_5",

                                                "SD_6", "Pass_Vol_Count", "X"};



// FEP line: Represents a serial communication line from field stations to the 

// An FEP Line has several Loop Detector Stations (Stations) connected)

typedef struct fep_line FEP_LINE;

struct  fep_line

{

        int             lineNum;

        vector<long>    lds;

        vector<long>    ldsIndex;       // location in ldsMap



        short   count;  // actual count from caltrans

        int     schedule;

        int     lineInfo;

        long    systemKey;

        long    globalSeq;

        long    schedleSeq;

};



// Loop Detector: A single sensor that detects the volume, occupancy, and speed

// in a single highway lane

typedef struct loop LOOP;

struct loop

{

    // meta data

    long loopID;

    char *loop_loc;

    

    // dynamic data

    int vol;

    float occ;

    double spd;

};



// Loop detector station: A single field station that contains multiple loops at

// a location

typedef struct Station STATION;

struct  Station

{

        // Each lds has its own line_num and drop (Caltrans use)

        long    lds;

        short   line_num;

        short   drop;

        

        vector<LOOP*> loops;



        // LDS data

        unsigned char   *dataPack;

        int             length;         // total length of data (max: 87)

        int             pos;            // pointer for data preparation

        int             MlTotVol;       // each 30 sec, the following will be updated

        int             OppTotVol;      // each 30 sec, the following will be updated

};



// A helper structure used to pack the volume and occupancy at a loop into

// a two byte message

typedef struct volOcc VOLOCC;

struct  volOcc

{

   char high;

   char low;

};



#endif