311 lines
12 KiB
C
311 lines
12 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include "stations.h"
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static struct anetz_stations {
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const char *standort;
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int kanal21; /* Channel for prefix 21 */
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int kanal22; /* Channel for prefix 22 (0 = use previous channel) */
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int kanal23; /* ... */
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int kanal24;
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int kanal25;
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const char *coordinates;
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} anetz_stations[] = {
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/* Standort Prefix 21..25 Coorinates */
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{ "Niebuell", 32, 0, 0, 0, 0, "54o47 08o50" },
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{ "Flensburg", 39, 0, 0, 0, 0, "54o47 09o26" },
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{ "Schleswig", 35, 0, 0, 0, 0, "54o31 09o34" },
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{ "Kiel", 36, 0, 0,38, 0, "54o20 10o08" },
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{ "Toenning", 37, 0, 0, 0, 0, "54o19 08o57" },
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{ "Heide", 34, 0, 0, 0, 0, "54o12 09o06" },
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{ "Eutin", 30, 0, 0, 0, 0, "54o08 10o37" },
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{ "Neumuenster", 32, 0, 0, 0, 0, "54o04 09o59" },
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{ "Luebeck", 37, 0, 0,42, 0, "53o52 10o41" },
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{ "Cuxhaven", 30, 0, 0, 0, 0, "53o52 08o41" },
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{ "Hemmoor", 40, 0, 0, 0, 0, "53o42 09o08" },
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{ "Ratzeburg", 40, 0, 0, 0, 0, "53o42 10o45" },
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{ "Hamburg", 39,35,31,41,33, "53o34 10o00" },
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{ "Bremerhaven", 39, 0, 0,41, 0, "53o33 08o35" },
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{ "Wilhelmshaven", 36, 0, 0, 0, 0, "53o31 08o08" },
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{ "Aurich", 32, 0, 0, 0, 0, "53o28 07o29" },
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{ "Lueneburg", 32, 0, 0, 0, 0, "53o15 10o25" },
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{ "Leer", 35, 0, 0, 0, 0, "53o14 07o27" },
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{ "Oldenburg", 30, 0, 0,31, 0, "53o09 08o13" },
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{ "Rotenburg", 30, 0, 0, 0, 0, "53o06 09o24" },
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{ "Bremen", 37,44,33,42, 0, "53o05 08o48" },
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{ "Soltau", 35, 0, 0, 0, 0, "52o59 09o50" },
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{ "Luechow", 30, 0, 0, 0, 0, "52o58 11o09" },
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{ "Uelzen", 34, 0, 0, 0, 0, "52o58 10o33" },
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{ "Werlte", 34, 0, 0, 0, 0, "52o51 07o41" },
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{ "Hoya", 32, 0, 0, 0, 0, "52o48 09o08" },
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{ "Lingen", 36, 0, 0, 0, 0, "52o31 07o19" },
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{ "Berlin", 39,33,35,41, 0, "52o31 13o23" },
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{ "Wolfsburg", 30, 0, 0, 0, 0, "52o25 10o47" },
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{ "Hannover", 36,44,33,38, 0, "52o22 09o43" },
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{ "Osnabrueck", 39, 0, 0,41, 0, "52o17 08o03" },
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{ "Minden", 30, 0, 0,40, 0, "52o17 08o55" },
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{ "Braunschweig", 37, 0, 0,42, 0, "52o16 10o31" },
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{ "Burgsteinfurt", 37, 0, 0, 0, 0, "52o09 07o21" },
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{ "Bielefeld", 34,33, 0,43, 0, "52o01 08o31" },
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{ "Alfeld", 39, 0, 0, 0, 0, "51o59 09o50" },
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{ "Muenster", 32, 0, 0,42, 0, "51o58 07o38" },
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{ "Kleve", 32, 0,31,38, 0, "51o47 06o08" },
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{ "Paderborn", 37, 0, 0, 0, 0, "51o43 08o46" },
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{ "Wesel", 45, 0, 0, 0, 0, "51o40 06o37" },
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{ "Goettingen", 34, 0, 0, 0, 0, "51o32 09o56" },
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{ "Dortmund", 36, 0, 31,38,0, "51o31 07o28" },
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{ "Essen", 34, 0, 0, 0,43, "51o27 07o01" },
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{ "Duisburg", 39,44,33,41, 0, "51o26 06o46" },
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{ "Meschede", 35, 0, 0, 0, 0, "51o21 08o17" },
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{ "Kassel", 32, 0, 0, 0, 0, "51o19 09o30" },
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{ "Wuppertal", 30, 0, 0, 0,40, "51o16 07o11" },
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{ "Korbach", 38, 0, 0, 0, 0, "51o17 08o52" },
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{ "Luedenscheid", 39, 0, 0, 0, 0, "51o13 07o38" },
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{ "Winterberg", 33, 0, 0, 0, 0, "51o12 08o31" },
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{ "Duesseldorf", 37, 0, 31,42,0, "51o14 06o47" },
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{ "Eschwege", 39, 0, 0, 0, 0, "51o11 10o03" },
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{ "Koeln", 36,35,33,38, 0, "50o56 06o57" },
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{ "Siegen", 36, 0, 0, 0, 0, "50o53 08o01" },
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{ "Aachen", 34, 0, 0, 0, 0, "50o47 06o05" },
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{ "Alsfeld", 36, 0, 0,40, 0, "50o45 09o16" },
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{ "Bonn", 32, 0, 0,41, 0, "50o44 07o06" },
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{ "Dillenburg", 42, 0, 0, 0, 0, "50o44 08o17" },
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{ "Giessen", 34, 0, 0, 0, 0, "50o35 08o40" },
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{ "Fulda", 30, 0, 0, 0, 0, "50o33 09o41" },
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{ "Montabaur", 46, 0, 0, 0, 0, "50o26 07o50" },
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{ "Usingen", 30, 0, 0, 0, 0, "50o20 08o32" },
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{ "Mayen", 34, 0, 0, 0, 0, "50o20 07o13" },
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{ "Hof", 39, 0, 0, 0, 0, "50o19 11o55" },
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{ "Coburg", 35, 0, 0, 0, 0, "50o16 10o58" },
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{ "Boppard", 39, 31,0, 35,0, "50o14 07o35" },
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{ "Koblenz", 40, 0, 0, 0, 0, "50o22 07o36" },
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{ "Pruem", 35, 0, 0, 0, 0, "50o12 06o25" },
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{ "Gelnhausen", 41, 0, 0, 0, 0, "50o12 09o10" },
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{ "Wiesbaden", 30, 0, 0, 0,40, "50o05 08o14" },
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{ "Hanau", 39, 0, 0, 0, 0, "50o08 08o55" },
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{ "Frankfurt", 37,35,31,42,33, "50o07 08o41" },
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{ "Schweinfurt", 34, 0, 0, 0, 0, "50o03 10o14" },
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{ "Aschaffenburg", 45, 0, 0, 0, 0, "49o58 09o09" },
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{ "Bingen", 36, 0, 0,41, 0, "49o58 07o54" },
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{ "Bayreuth", 30, 0, 0, 0, 0, "49o57 11o35" },
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{ "Bernkastel", 37, 0, 0, 0, 0, "49o55 07o04" },
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{ "Bamberg", 37, 0, 0, 0, 0, "49o54 10o54" },
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{ "Darmstadt", 32, 0, 0,38, 0, "49o52 08o39" },
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{ "Marktheidenfeld", 36, 0, 0, 0, 0, "49o51 09o36" },
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{ "Wuerzburg", 39, 0, 0,44, 0, "49o47 09o56" },
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{ "Pegnitz", 34, 0, 0, 0, 0, "49o45 11o34" },
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{ "Trier", 39, 0, 0, 0, 0, "49o45 06o38" },
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{ "Kitzingen", 32, 0, 0, 0, 0, "49o44 10o10" },
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{ "Idar-Oberstein", 32, 0, 0, 0, 0, "49o43 07o19" },
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{ "Lindenfels", 34, 0, 0, 0, 0, "49o41 08o47" },
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{ "Weiden", 32, 0, 0, 0, 0, "49o40 12o09" },
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{ "Mannheim", 39,35,44,41, 0, "49o29 08o28" },
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{ "Fuerth", 44, 0, 0, 0, 0, "49o28 11o00" },
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{ "Kaiserslautern", 34, 0, 0,43, 0, "49o27 07o46" },
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{ "Nuernberg", 39, 0, 33,41,0, "49o27 11o05" },
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{ "Heidelberg", 37, 0, 0,42, 0, "49o25 08o43" },
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{ "Ansbach", 30, 0, 0, 0, 0, "49o18 10o35" },
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{ "Neumarkt", 35, 0, 0, 0, 0, "49o17 11o28" },
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{ "Saarbruecken", 30, 0, 0,40, 0, "49o14 07o00" },
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{ "Heilbronn", 32, 0, 0,43, 0, "49o09 09o13" },
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{ "Schwaebisch Hall", 41, 0, 0, 0, 0, "49o07 09o44" },
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{ "Weissenburg", 36, 0, 0, 0, 0, "49o02 10o58" },
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{ "Regensburg", 30, 0, 0, 0, 0, "49o01 12o05" },
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{ "Karlsruhe", 30, 0, 0, 0,40, "49o01 08o24" },
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{ "Pforzheim", 46, 0, 0, 0, 0, "48o54 08o43" },
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{ "Deggendorf", 37, 0, 0, 0, 0, "48o50 12o58" },
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{ "Schwaebisch Gmuend", 34, 0, 0, 0, 0, "48o48 09o48" },
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{ "Stuttgart", 35,44,33,38,40, "48o47 09o11" },
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{ "Calw", 31, 0, 0, 0, 0, "48o43 08o44" },
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{ "Geislingen", 35, 0, 0, 0, 0, "48o37 09o50" },
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{ "Passau", 36, 0, 0, 0, 0, "48o34 13o28" },
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{ "Landshut", 34, 0, 0, 0, 0, "48o32 12o09" },
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{ "Pfaffenhofen", 32, 0, 0, 0, 0, "48o32 11o31" },
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{ "Tuebingen", 37, 0, 0, 0, 0, "48o31 09o03" },
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{ "Offenburg", 32, 0, 0,38, 0, "48o28 07o56" },
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{ "Freudenstadt", 39, 0, 0, 0, 0, "48o28 08o25" },
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{ "Pfarrkirchen", 35, 0, 0, 0, 0, "48o25 12o55" },
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{ "Ulm", 39, 0, 0,41, 0, "48o24 09o59" },
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{ "Augsburg", 37, 0, 0,42, 0, "48o22 10o54" },
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{ "Rottweil", 34, 0, 0,43, 0, "48o10 08o37" },
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{ "Riedlingen", 33, 0, 0, 0, 0, "48o09 09o28" },
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{ "Muenchen", 39,35,33,41,44, "48o08 11o34" },
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{ "Wasserburg", 36, 0, 0,42, 0, "48o03 12o14" },
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{ "Freiburg", 37, 0, 0,31, 0, "47o59 07o51" },
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{ "Donaueschingen", 37, 0, 0, 0, 0, "47o57 08o30" },
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{ "Neustadt", 30, 0, 0, 0, 0, "47o55 08o13" },
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{ "Weilheim", 30, 0, 0, 0, 0, "47o50 11o09" },
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{ "Ravensburg", 30, 0, 0, 0, 0, "47o47 09o37" },
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{ "Singen", 31, 0, 0, 0, 0, "47o46 08o50" },
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{ "Bad Toelz", 37, 0, 0, 0, 0, "47o46 11o33" },
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{ "Kempten", 34, 0, 0,43, 0, "47o44 10o19" },
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{ "Bad Reichenhall", 41, 0, 0, 0, 0, "47o43 12o53" },
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{ "Loerrach", 44, 0, 0, 0, 0, "47o37 07o40" },
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{ "Saeckingen", 34, 0, 0, 0, 0, "47o33 07o57" },
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{ "Garmisch-Partenkirchen", 36, 0, 0, 0, 0, "47o30 11o05" },
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{ NULL, 0, 0, 0, 0, 0, NULL }
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};
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static double lat_from_coordinates(const char *string)
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{
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if (strlen(string) != 11)
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abort();
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if (string[0] < '0' || string[0] > '9')
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abort();
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if (string[1] < '0' || string[1] > '9')
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abort();
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if (string[2] != 'o')
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abort();
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if (string[3] < '0' || string[3] > '9')
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abort();
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if (string[4] < '0' || string[4] > '9')
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abort();
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return (double)(string[0] - '0') * 10.0 +
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(double)(string[1] - '0') +
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(double)(string[3] - '0') / 6.0 +
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(double)(string[4] - '0') / 60.0;
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}
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static double lon_from_coordinates(const char *string)
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{
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if (strlen(string) != 11)
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abort();
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if (string[6] < '0' || string[6] > '9')
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abort();
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if (string[7] < '0' || string[7] > '9')
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abort();
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if (string[8] != 'o')
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abort();
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if (string[9] < '0' || string[9] > '9')
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abort();
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if (string[10] < '0' || string[10] > '9')
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abort();
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return (double)(string[6] - '0') * 10.0 +
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(double)(string[7] - '0') +
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(double)(string[9] - '0') / 6.0 +
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(double)(string[10] - '0') / 60.0;
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}
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#define EQUATOR_RADIUS 6378137.0
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#define POLE_RADIUS 6356752.314
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#define PI M_PI
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void station_list(void)
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{
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int i;
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printf("List of all base stations:\n");
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for (i = 0; anetz_stations[i].standort; i++) {
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printf("%s (%.2f deg N %.2f deg E)\n", anetz_stations[i].standort, lat_from_coordinates(anetz_stations[i].coordinates), lon_from_coordinates(anetz_stations[i].coordinates));
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if (anetz_stations[i].kanal21) {
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if (anetz_stations[i].kanal22)
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printf("\tPrefix 21: Channel %d\n", anetz_stations[i].kanal21);
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else if (anetz_stations[i].kanal23)
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printf("\tPrefix 21-22: Channel %d\n", anetz_stations[i].kanal21);
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else if (anetz_stations[i].kanal24)
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printf("\tPrefix 21-23: Channel %d\n", anetz_stations[i].kanal21);
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else if (anetz_stations[i].kanal25)
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printf("\tPrefix 21-24: Channel %d\n", anetz_stations[i].kanal21);
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else
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printf("\tPrefix 21-25: Channel %d\n", anetz_stations[i].kanal21);
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}
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if (anetz_stations[i].kanal22) {
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if (anetz_stations[i].kanal23)
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printf("\tPrefix 22: Channel %d\n", anetz_stations[i].kanal22);
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else if (anetz_stations[i].kanal24)
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printf("\tPrefix 22-23: Channel %d\n", anetz_stations[i].kanal22);
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else if (anetz_stations[i].kanal25)
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printf("\tPrefix 22-24: Channel %d\n", anetz_stations[i].kanal22);
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else
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printf("\tPrefix 22-25: Channel %d\n", anetz_stations[i].kanal22);
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}
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if (anetz_stations[i].kanal23) {
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if (anetz_stations[i].kanal24)
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printf("\tPrefix 23: Channel %d\n", anetz_stations[i].kanal23);
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else if (anetz_stations[i].kanal25)
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printf("\tPrefix 23-24: Channel %d\n", anetz_stations[i].kanal23);
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else
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printf("\tPrefix 23-25: Channel %d\n", anetz_stations[i].kanal23);
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}
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if (anetz_stations[i].kanal24) {
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if (anetz_stations[i].kanal25)
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printf("\tPrefix 24: Channel %d\n", anetz_stations[i].kanal24);
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else
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printf("\tPrefix 24-25: Channel %d\n", anetz_stations[i].kanal24);
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}
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if (anetz_stations[i].kanal25)
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printf("\tPrefix 25: Channel %d\n", anetz_stations[i].kanal25);
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}
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}
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/* convert geo coordinates (lon/lat) to space coordinates in meters (x/y/z) */
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static void geo2space(double *x, double *y, double *z, double lat, double lon)
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{
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*z = sin(lat / 180.0 * PI) * POLE_RADIUS;
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*x = sin(lon / 180.0 * PI) * cos(lat / 180.0 * PI) * EQUATOR_RADIUS;
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*y = -cos(lon / 180.0 * PI) * cos(lat / 180.0 * PI) * EQUATOR_RADIUS;
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}
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/* calculate distance */
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static double distinspace(double x1, double y1, double z1, double x2, double y2, double z2)
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{
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double x = x1 - x2;
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double y = y1 - y2;
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double z = z1 - z2;
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return sqrt(x * x + y * y + z * z);
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}
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int get_station_by_coordinates(double lat, double lon)
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{
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double dist, min = 0.0;
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int i, min_i = 0;
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double x, y, z;
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double s_lat, s_lon;
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double s_x, s_y, s_z;
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int kanal[5];
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geo2space(&x, &y, &z, lat, lon);
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for (i = 0; anetz_stations[i].standort; i++) {
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s_lat = lat_from_coordinates(anetz_stations[i].coordinates);
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s_lon = lon_from_coordinates(anetz_stations[i].coordinates);
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geo2space(&s_x, &s_y, &s_z, s_lat, s_lon);
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dist = distinspace(x, y, z, s_x, s_y, s_z);
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if (i == 0 || dist < min) {
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min = dist;
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min_i = i;
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}
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}
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/* don't allow distance more than 100KM */
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if (min > 100000) {
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fprintf(stderr, "Given coordinates are more than 100 km away from base station.\n");
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return 0;
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}
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kanal[0] = anetz_stations[min_i].kanal21;
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kanal[1] = anetz_stations[min_i].kanal22;
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kanal[2] = anetz_stations[min_i].kanal23;
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kanal[3] = anetz_stations[min_i].kanal24;
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kanal[4] = anetz_stations[min_i].kanal25;
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for (i = 0; i < 5; i++) {
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if (i && kanal[i] == 0)
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kanal[i] = kanal[i - 1];
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}
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printf("Closest base station: %s (distance = %.2f km)\n", anetz_stations[min_i].standort, min / 1000.0);
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printf("Frequencies allocated in your area were:\n");
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for (i = 0; i < 5; i++)
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printf(" Channel %d for phone numbers '%dxxxxx'\n", kanal[i], i + 21);
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return 0;
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}
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