@@ -29,31 +29,31 @@ discard block |
||
29 | 29 | |
30 | 30 | private function make_latf($temp) { // unsigned long |
31 | 31 | $flat = 0.0; // float |
32 | - $temp = $temp & 0x07FFFFFF; |
|
33 | - if ($temp & 0x04000000) { |
|
34 | - $temp = $temp ^ 0x07FFFFFF; |
|
32 | + $temp = $temp&0x07FFFFFF; |
|
33 | + if ($temp&0x04000000) { |
|
34 | + $temp = $temp^0x07FFFFFF; |
|
35 | 35 | $temp += 1; |
36 | - $flat = (float)($temp / (60.0 * 10000.0)); |
|
36 | + $flat = (float) ($temp/(60.0*10000.0)); |
|
37 | 37 | $flat *= -1.0; |
38 | - } else $flat = (float)($temp / (60.0 * 10000.0)); |
|
38 | + } else $flat = (float) ($temp/(60.0*10000.0)); |
|
39 | 39 | return $flat; // float |
40 | 40 | } |
41 | 41 | |
42 | 42 | private function make_lonf($temp) { // unsigned long |
43 | 43 | $flon = 0.0; // float |
44 | - $temp = $temp & 0x0FFFFFFF; |
|
45 | - if ($temp & 0x08000000) { |
|
46 | - $temp = $temp ^ 0x0FFFFFFF; |
|
44 | + $temp = $temp&0x0FFFFFFF; |
|
45 | + if ($temp&0x08000000) { |
|
46 | + $temp = $temp^0x0FFFFFFF; |
|
47 | 47 | $temp += 1; |
48 | - $flon = (float)($temp / (60.0 * 10000.0)); |
|
48 | + $flon = (float) ($temp/(60.0*10000.0)); |
|
49 | 49 | $flon *= -1.0; |
50 | - } else $flon = (float)($temp / (60.0 * 10000.0)); |
|
50 | + } else $flon = (float) ($temp/(60.0*10000.0)); |
|
51 | 51 | return $flon; |
52 | 52 | } |
53 | 53 | |
54 | 54 | private function ascii_2_dec($chr) { |
55 | - $dec=ord($chr);//get decimal ascii code |
|
56 | - $hex=dechex($dec);//convert decimal to hex |
|
55 | + $dec = ord($chr); //get decimal ascii code |
|
56 | + $hex = dechex($dec); //convert decimal to hex |
|
57 | 57 | return ($dec); |
58 | 58 | } |
59 | 59 | |
@@ -72,15 +72,15 @@ discard block |
||
72 | 72 | //only process in the following range: 48-87, 96-119 |
73 | 73 | if ($ascii < 48) { } |
74 | 74 | else { |
75 | - if($ascii>119) { } |
|
75 | + if ($ascii > 119) { } |
|
76 | 76 | else { |
77 | - if ($ascii>87 && $ascii<96) ; |
|
77 | + if ($ascii > 87 && $ascii < 96); |
|
78 | 78 | else { |
79 | - $ascii=$ascii+40; |
|
80 | - if ($ascii>128){ |
|
81 | - $ascii=$ascii+32; |
|
79 | + $ascii = $ascii + 40; |
|
80 | + if ($ascii > 128) { |
|
81 | + $ascii = $ascii + 32; |
|
82 | 82 | } else { |
83 | - $ascii=$ascii+40; |
|
83 | + $ascii = $ascii + 40; |
|
84 | 84 | } |
85 | 85 | } |
86 | 86 | } |
@@ -89,7 +89,7 @@ discard block |
||
89 | 89 | } |
90 | 90 | |
91 | 91 | private function dec_2_6bit($dec) { |
92 | - $bin=decbin($dec); |
|
92 | + $bin = decbin($dec); |
|
93 | 93 | return(substr($bin, -6)); |
94 | 94 | } |
95 | 95 | |
@@ -107,11 +107,11 @@ discard block |
||
107 | 107 | ); |
108 | 108 | // " |
109 | 109 | $rv = ''; |
110 | - if ($_size % 6 == 0) { |
|
111 | - $len = $_size / 6; |
|
112 | - for ($i=0; $i<$len; $i++) { |
|
113 | - $offset = $i * 6; |
|
114 | - $rv .= $ais_chars[ bindec(substr($_str,$_start + $offset,6)) ]; |
|
110 | + if ($_size%6 == 0) { |
|
111 | + $len = $_size/6; |
|
112 | + for ($i = 0; $i < $len; $i++) { |
|
113 | + $offset = $i*6; |
|
114 | + $rv .= $ais_chars[bindec(substr($_str, $_start + $offset, 6))]; |
|
115 | 115 | } |
116 | 116 | } |
117 | 117 | return $rv; |
@@ -138,93 +138,93 @@ discard block |
||
138 | 138 | $ro->eta_hour = ''; |
139 | 139 | $ro->eta_minute = ''; |
140 | 140 | $ro->ts = time(); |
141 | - $ro->id = bindec(substr($_aisdata,0,6)); |
|
142 | - $ro->mmsi = bindec(substr($_aisdata,8,30)); |
|
141 | + $ro->id = bindec(substr($_aisdata, 0, 6)); |
|
142 | + $ro->mmsi = bindec(substr($_aisdata, 8, 30)); |
|
143 | 143 | if ($ro->id >= 1 && $ro->id <= 3) { |
144 | - $ro->cog = bindec(substr($_aisdata,116,12))/10; |
|
145 | - $ro->sog = bindec(substr($_aisdata,50,10))/10; |
|
146 | - $ro->lon = $this->make_lonf(bindec(substr($_aisdata,61,28))); |
|
147 | - $ro->lat = $this->make_latf(bindec(substr($_aisdata,89,27))); |
|
144 | + $ro->cog = bindec(substr($_aisdata, 116, 12))/10; |
|
145 | + $ro->sog = bindec(substr($_aisdata, 50, 10))/10; |
|
146 | + $ro->lon = $this->make_lonf(bindec(substr($_aisdata, 61, 28))); |
|
147 | + $ro->lat = $this->make_latf(bindec(substr($_aisdata, 89, 27))); |
|
148 | 148 | $ro->cls = 1; // class A |
149 | 149 | } else if ($ro->id == 4) { |
150 | - $ro->lon = $this->make_lonf(bindec(substr($_aisdata,79,28))); |
|
151 | - $ro->lat = $this->make_latf(bindec(substr($_aisdata,107,27))); |
|
150 | + $ro->lon = $this->make_lonf(bindec(substr($_aisdata, 79, 28))); |
|
151 | + $ro->lat = $this->make_latf(bindec(substr($_aisdata, 107, 27))); |
|
152 | 152 | $ro->cls = 1; // class A |
153 | 153 | } else if ($ro->id == 5) { |
154 | - $ro->imo = bindec(substr($_aisdata,40,30)); |
|
155 | - $ro->callsign = $this->binchar($_aisdata,70,42); |
|
156 | - $ro->name = $this->binchar($_aisdata,112,120); |
|
157 | - $ro->typeid = bindec(substr($_aisdata,232,8)); |
|
154 | + $ro->imo = bindec(substr($_aisdata, 40, 30)); |
|
155 | + $ro->callsign = $this->binchar($_aisdata, 70, 42); |
|
156 | + $ro->name = $this->binchar($_aisdata, 112, 120); |
|
157 | + $ro->typeid = bindec(substr($_aisdata, 232, 8)); |
|
158 | 158 | $ro->type = $this->getShipType($ro->typeid); |
159 | 159 | //$ro->to_bow = bindec(substr($_aisdata,240,9)); |
160 | 160 | //$ro->to_stern = bindec(substr($_aisdata,249,9)); |
161 | 161 | //$ro->to_port = bindec(substr($_aisdata,258,6)); |
162 | 162 | //$ro->to_starboard = bindec(substr($_aisdata,264,6)); |
163 | - $ro->eta_month = bindec(substr($_aisdata,274,4)); |
|
164 | - $ro->eta_day = bindec(substr($_aisdata,278,5)); |
|
165 | - $ro->eta_hour = bindec(substr($_aisdata,283,5)); |
|
166 | - $ro->eta_minute = bindec(substr($_aisdata,288,6)); |
|
163 | + $ro->eta_month = bindec(substr($_aisdata, 274, 4)); |
|
164 | + $ro->eta_day = bindec(substr($_aisdata, 278, 5)); |
|
165 | + $ro->eta_hour = bindec(substr($_aisdata, 283, 5)); |
|
166 | + $ro->eta_minute = bindec(substr($_aisdata, 288, 6)); |
|
167 | 167 | //$ro->draught = bindec(substr($_aisdata,294,8)); |
168 | - $ro->destination = $this->binchar($_aisdata,302,120); |
|
168 | + $ro->destination = $this->binchar($_aisdata, 302, 120); |
|
169 | 169 | $ro->cls = 1; // class A |
170 | 170 | } else if ($ro->id == 9) { |
171 | 171 | // Search and Rescue aircraft position report |
172 | 172 | } else if ($ro->id == 18) { |
173 | - $ro->cog = bindec(substr($_aisdata,112,12))/10; |
|
174 | - $ro->sog = bindec(substr($_aisdata,46,10))/10; |
|
175 | - $ro->lon = $this->make_lonf(bindec(substr($_aisdata,57,28))); |
|
176 | - $ro->lat = $this->make_latf(bindec(substr($_aisdata,85,27))); |
|
177 | - $ro->heading = bindec(substr($_aisdata,124,9)); |
|
173 | + $ro->cog = bindec(substr($_aisdata, 112, 12))/10; |
|
174 | + $ro->sog = bindec(substr($_aisdata, 46, 10))/10; |
|
175 | + $ro->lon = $this->make_lonf(bindec(substr($_aisdata, 57, 28))); |
|
176 | + $ro->lat = $this->make_latf(bindec(substr($_aisdata, 85, 27))); |
|
177 | + $ro->heading = bindec(substr($_aisdata, 124, 9)); |
|
178 | 178 | if ($ro->heading == 511) $ro->heading = ''; |
179 | 179 | $ro->cls = 2; // class B |
180 | 180 | } else if ($ro->id == 19) { |
181 | - $ro->cog = bindec(substr($_aisdata,112,12))/10; |
|
182 | - $ro->sog = bindec(substr($_aisdata,46,10))/10; |
|
183 | - $ro->lon = $this->make_lonf(bindec(substr($_aisdata,61,28))); |
|
184 | - $ro->lat = $this->make_latf(bindec(substr($_aisdata,89,27))); |
|
185 | - $ro->name = $this->binchar($_aisdata,143,120); |
|
181 | + $ro->cog = bindec(substr($_aisdata, 112, 12))/10; |
|
182 | + $ro->sog = bindec(substr($_aisdata, 46, 10))/10; |
|
183 | + $ro->lon = $this->make_lonf(bindec(substr($_aisdata, 61, 28))); |
|
184 | + $ro->lat = $this->make_latf(bindec(substr($_aisdata, 89, 27))); |
|
185 | + $ro->name = $this->binchar($_aisdata, 143, 120); |
|
186 | 186 | $ro->cls = 2; // class B |
187 | - $ro->heading = bindec(substr($_aisdata,124,9)); |
|
187 | + $ro->heading = bindec(substr($_aisdata, 124, 9)); |
|
188 | 188 | if ($ro->heading == 511) $ro->heading = ''; |
189 | - $ro->typeid = bindec(substr($_aisdata,263,8)); |
|
189 | + $ro->typeid = bindec(substr($_aisdata, 263, 8)); |
|
190 | 190 | $ro->type = $this->getShipType($ro->typeid); |
191 | 191 | //$ro->to_bow = bindec(substr($_aisdata,271,9)); |
192 | 192 | //$ro->to_stern = bindec(substr($_aisdata,280,9)); |
193 | 193 | //$ro->to_port = bindec(substr($_aisdata,289,6)); |
194 | 194 | //$ro->to_starboard = bindec(substr($_aisdata,295,6)); |
195 | 195 | } else if ($ro->id == 21) { |
196 | - $ro->lon = $this->make_lonf(bindec(substr($_aisdata,164,28))); |
|
197 | - $ro->lat = $this->make_latf(bindec(substr($_aisdata,192,27))); |
|
198 | - $ro->name = $this->binchar($_aisdata,43,120); |
|
196 | + $ro->lon = $this->make_lonf(bindec(substr($_aisdata, 164, 28))); |
|
197 | + $ro->lat = $this->make_latf(bindec(substr($_aisdata, 192, 27))); |
|
198 | + $ro->name = $this->binchar($_aisdata, 43, 120); |
|
199 | 199 | //$ro->to_bow = bindec(substr($_aisdata,219,9)); |
200 | 200 | //$ro->to_stern = bindec(substr($_aisdata,228,9)); |
201 | 201 | //$ro->to_port = bindec(substr($_aisdata,237,6)); |
202 | 202 | //$ro->to_starboard = bindec(substr($_aisdata,243,6)); |
203 | 203 | $ro->cls = 2; // class B |
204 | 204 | } else if ($ro->id == 24) { |
205 | - $pn = bindec(substr($_aisdata,38,2)); |
|
205 | + $pn = bindec(substr($_aisdata, 38, 2)); |
|
206 | 206 | if ($pn == 0) { |
207 | - $ro->name = $this->binchar($_aisdata,40,120); |
|
207 | + $ro->name = $this->binchar($_aisdata, 40, 120); |
|
208 | 208 | } |
209 | - $ro->typeid = bindec(substr($_aisdata,40,8)); |
|
209 | + $ro->typeid = bindec(substr($_aisdata, 40, 8)); |
|
210 | 210 | $ro->type = $this->getShipType($ro->typeid); |
211 | - $ro->callsign = $this->binchar($_aisdata,90,42); |
|
211 | + $ro->callsign = $this->binchar($_aisdata, 90, 42); |
|
212 | 212 | //$ro->to_bow = bindec(substr($_aisdata,132,9)); |
213 | 213 | //$ro->to_stern = bindec(substr($_aisdata,141,9)); |
214 | 214 | //$ro->to_port = bindec(substr($_aisdata,150,6)); |
215 | 215 | //$ro->to_starboard = bindec(substr($_aisdata,156,6)); |
216 | 216 | $ro->cls = 2; // class B |
217 | 217 | } else if ($ro->id == 27) { |
218 | - $ro->cog = bindec(substr($_aisdata,85,9)); |
|
218 | + $ro->cog = bindec(substr($_aisdata, 85, 9)); |
|
219 | 219 | if ($ro->cog == 511) $ro->cog = 0.0; |
220 | - $ro->sog = bindec(substr($_aisdata,79,6)); |
|
220 | + $ro->sog = bindec(substr($_aisdata, 79, 6)); |
|
221 | 221 | if ($ro->sog == 63) $ro->sog = 0.0; |
222 | - $ro->lon = $this->make_lonf(bindec(substr($_aisdata,44,18))*10); |
|
223 | - $ro->lat = $this->make_latf(bindec(substr($_aisdata,62,17))*10); |
|
222 | + $ro->lon = $this->make_lonf(bindec(substr($_aisdata, 44, 18))*10); |
|
223 | + $ro->lat = $this->make_latf(bindec(substr($_aisdata, 62, 17))*10); |
|
224 | 224 | $ro->cls = 1; // class A |
225 | 225 | |
226 | 226 | } |
227 | - $ro->statusid = bindec(substr($_aisdata,38,4)); |
|
227 | + $ro->statusid = bindec(substr($_aisdata, 38, 4)); |
|
228 | 228 | $ro->status = $this->getStatus($ro->statusid); |
229 | 229 | //var_dump($ro); // dump results here for demo purpose |
230 | 230 | return $ro; |
@@ -355,14 +355,14 @@ discard block |
||
355 | 355 | global $port; // tcpip port... |
356 | 356 | |
357 | 357 | static $debug_counter = 0; |
358 | - $aisdata168='';//six bit array of ascii characters |
|
358 | + $aisdata168 = ''; //six bit array of ascii characters |
|
359 | 359 | $ais_nmea_array = str_split($_itu); // convert to an array |
360 | 360 | foreach ($ais_nmea_array as $value) { |
361 | 361 | $dec = $this->ascii_2_dec($value); |
362 | 362 | $bit8 = $this->asciidec_2_8bit($dec); |
363 | 363 | $bit6 = $this->dec_2_6bit($bit8); |
364 | 364 | //echo $value ."-" .$bit6 .""; |
365 | - $aisdata168 .=$bit6; |
|
365 | + $aisdata168 .= $bit6; |
|
366 | 366 | } |
367 | 367 | //echo $aisdata168 . "<br/>"; |
368 | 368 | //return $this->decode_ais($aisdata168, $aux); |
@@ -385,24 +385,24 @@ discard block |
||
385 | 385 | // calculate checksum after ! till * |
386 | 386 | // assume 1st ! is valid |
387 | 387 | // find * ensure that it is at correct position |
388 | - $end = strrpos ( $rawdata , '*' ); |
|
388 | + $end = strrpos($rawdata, '*'); |
|
389 | 389 | if ($end === FALSE) return -1; // check for NULLS!!! |
390 | - $cs = substr( $rawdata, $end + 1 ); |
|
391 | - if ( strlen($cs) != 2 ) return -1; // correct cs length |
|
392 | - $dcs = (int)hexdec( $cs ); |
|
393 | - for ( $alias=1; $alias<$end; $alias++) $chksum ^= ord( $rawdata[$alias] ); // perform XOR for NMEA checksum |
|
394 | - if ( $chksum == $dcs ) { // NMEA checksum pass |
|
390 | + $cs = substr($rawdata, $end + 1); |
|
391 | + if (strlen($cs) != 2) return -1; // correct cs length |
|
392 | + $dcs = (int) hexdec($cs); |
|
393 | + for ($alias = 1; $alias < $end; $alias++) $chksum ^= ord($rawdata[$alias]); // perform XOR for NMEA checksum |
|
394 | + if ($chksum == $dcs) { // NMEA checksum pass |
|
395 | 395 | $pcs = explode(',', $rawdata); |
396 | 396 | // !AI??? identifier |
397 | 397 | if (!isset($pcs[1])) { |
398 | 398 | echo "ERROR,INVALID_DATA ".time()." $rawdata\n"; |
399 | 399 | return -1; |
400 | 400 | } |
401 | - $num_seq = (int)$pcs[1]; // number of sequences |
|
402 | - $seq = (int)$pcs[2]; // get sequence |
|
401 | + $num_seq = (int) $pcs[1]; // number of sequences |
|
402 | + $seq = (int) $pcs[2]; // get sequence |
|
403 | 403 | // get msg sequence id |
404 | 404 | if ($pcs[3] == '') $msg_sid = -1; // non-multipart message, set to -1 |
405 | - else $msg_sid = (int)$pcs[3]; // multipart message |
|
405 | + else $msg_sid = (int) $pcs[3]; // multipart message |
|
406 | 406 | $ais_ch = $pcs[4]; // get AIS channel |
407 | 407 | // message sequence checking |
408 | 408 | if ($num_seq < 1 || $num_seq > 9) { |
@@ -435,7 +435,7 @@ discard block |
||
435 | 435 | } |
436 | 436 | } |
437 | 437 | $itu = $itu.$pcs[5]; // get itu message |
438 | - $filler += (int)$pcs[6][0]; // get filler |
|
438 | + $filler += (int) $pcs[6][0]; // get filler |
|
439 | 439 | if ($num_seq == 1 // valid single message |
440 | 440 | || $num_seq == $pseq // valid multi-part message |
441 | 441 | ) { |
@@ -455,13 +455,13 @@ discard block |
||
455 | 455 | $cbuf = $cbuf.$ibuf; |
456 | 456 | $last_pos = 0; |
457 | 457 | $result = new stdClass(); |
458 | - while ( ($start = strpos($cbuf,"VDM",$last_pos)) !== FALSE) { |
|
458 | + while (($start = strpos($cbuf, "VDM", $last_pos)) !== FALSE) { |
|
459 | 459 | //while ( ($start = strpos($cbuf,"!AI",$last_pos)) !== FALSE) { |
460 | 460 | //DEBUG echo $cbuf; |
461 | - if ( ($end = strpos($cbuf,"\r\n", $start)) !== FALSE) { //TBD need to trim? |
|
461 | + if (($end = strpos($cbuf, "\r\n", $start)) !== FALSE) { //TBD need to trim? |
|
462 | 462 | $tst = substr($cbuf, $start - 3, ($end - $start + 3)); |
463 | 463 | //DEBUG echo "[$start $end $tst]\n"; |
464 | - $result = $this->process_ais_raw( $tst, "" ); |
|
464 | + $result = $this->process_ais_raw($tst, ""); |
|
465 | 465 | $last_pos = $end + 1; |
466 | 466 | } else break; |
467 | 467 | } |
@@ -473,41 +473,41 @@ discard block |
||
473 | 473 | // incoming data from serial or IP comms |
474 | 474 | public function process_ais_line($cbuf) { |
475 | 475 | $result = new stdClass(); |
476 | - $start = strpos($cbuf,"VDM"); |
|
476 | + $start = strpos($cbuf, "VDM"); |
|
477 | 477 | $tst = substr($cbuf, $start - 3); |
478 | - $result = $this->process_ais_raw( $tst, "" ); |
|
478 | + $result = $this->process_ais_raw($tst, ""); |
|
479 | 479 | return $result; |
480 | 480 | } |
481 | 481 | |
482 | 482 | /* AIS Encoding |
483 | 483 | */ |
484 | - private function mk_ais_lat( $lat ) { |
|
484 | + private function mk_ais_lat($lat) { |
|
485 | 485 | //$lat = 1.2569; |
486 | - if ($lat<0.0) { |
|
486 | + if ($lat < 0.0) { |
|
487 | 487 | $lat = -$lat; |
488 | - $neg=true; |
|
489 | - } else $neg=false; |
|
488 | + $neg = true; |
|
489 | + } else $neg = false; |
|
490 | 490 | $latd = 0x00000000; |
491 | - $latd = intval ($lat * 600000.0); |
|
492 | - if ($neg==true) { |
|
491 | + $latd = intval($lat*600000.0); |
|
492 | + if ($neg == true) { |
|
493 | 493 | $latd = ~$latd; |
494 | - $latd+=1; |
|
494 | + $latd += 1; |
|
495 | 495 | $latd &= 0x07FFFFFF; |
496 | 496 | } |
497 | 497 | return $latd; |
498 | 498 | } |
499 | 499 | |
500 | - private function mk_ais_lon( $lon ) { |
|
500 | + private function mk_ais_lon($lon) { |
|
501 | 501 | //$lon = 103.851; |
502 | - if ($lon<0.0) { |
|
502 | + if ($lon < 0.0) { |
|
503 | 503 | $lon = -$lon; |
504 | - $neg=true; |
|
505 | - } else $neg=false; |
|
504 | + $neg = true; |
|
505 | + } else $neg = false; |
|
506 | 506 | $lond = 0x00000000; |
507 | - $lond = intval ($lon * 600000.0); |
|
508 | - if ($neg==true) { |
|
507 | + $lond = intval($lon*600000.0); |
|
508 | + if ($neg == true) { |
|
509 | 509 | $lond = ~$lond; |
510 | - $lond+=1; |
|
510 | + $lond += 1; |
|
511 | 511 | $lond &= 0x0FFFFFFF; |
512 | 512 | } |
513 | 513 | return $lond; |
@@ -515,8 +515,8 @@ discard block |
||
515 | 515 | |
516 | 516 | private function char2bin($name, $max_len) { |
517 | 517 | $len = strlen($name); |
518 | - if ($len > $max_len) $name = substr($name,0,$max_len); |
|
519 | - if ($len < $max_len) $pad = str_repeat('0', ($max_len - $len) * 6); |
|
518 | + if ($len > $max_len) $name = substr($name, 0, $max_len); |
|
519 | + if ($len < $max_len) $pad = str_repeat('0', ($max_len - $len)*6); |
|
520 | 520 | else $pad = ''; |
521 | 521 | $rv = ''; |
522 | 522 | $ais_chars = array( |
@@ -533,26 +533,26 @@ discard block |
||
533 | 533 | if ($_a) foreach ($_a as $_1) { |
534 | 534 | if (isset($ais_chars[$_1])) $dec = $ais_chars[$_1]; |
535 | 535 | else $dec = 0; |
536 | - $bin = str_pad(decbin( $dec ), 6, '0', STR_PAD_LEFT); |
|
536 | + $bin = str_pad(decbin($dec), 6, '0', STR_PAD_LEFT); |
|
537 | 537 | $rv .= $bin; |
538 | 538 | //echo "$_1 $dec ($bin)<br/>"; |
539 | 539 | } |
540 | 540 | return $rv.$pad; |
541 | 541 | } |
542 | 542 | |
543 | - private function mk_ais($_enc, $_part=1,$_total=1,$_seq='',$_ch='A') { |
|
543 | + private function mk_ais($_enc, $_part = 1, $_total = 1, $_seq = '', $_ch = 'A') { |
|
544 | 544 | $len_bit = strlen($_enc); |
545 | - $rem6 = $len_bit % 6; |
|
545 | + $rem6 = $len_bit%6; |
|
546 | 546 | $pad6_len = 0; |
547 | 547 | if ($rem6) $pad6_len = 6 - $rem6; |
548 | 548 | //echo $pad6_len.'<br>'; |
549 | 549 | $_enc .= str_repeat("0", $pad6_len); // pad the text... |
550 | - $len_enc = strlen($_enc) / 6; |
|
550 | + $len_enc = strlen($_enc)/6; |
|
551 | 551 | //echo $_enc.' '.$len_enc.'<br/>'; |
552 | 552 | $itu = ''; |
553 | - for ($i=0; $i<$len_enc; $i++) { |
|
554 | - $offset = $i * 6; |
|
555 | - $dec = bindec(substr($_enc,$offset,6)); |
|
553 | + for ($i = 0; $i < $len_enc; $i++) { |
|
554 | + $offset = $i*6; |
|
555 | + $dec = bindec(substr($_enc, $offset, 6)); |
|
556 | 556 | if ($dec < 40) $dec += 48; |
557 | 557 | else $dec += 56; |
558 | 558 | //echo chr($dec)." $dec<br/>"; |
@@ -562,15 +562,15 @@ discard block |
||
562 | 562 | $chksum = 0; |
563 | 563 | $itu = "AIVDM,$_part,$_total,$_seq,$_ch,".$itu.",0"; |
564 | 564 | $len_itu = strlen($itu); |
565 | - for ($i=0; $i<$len_itu; $i++) { |
|
566 | - $chksum ^= ord( $itu[$i] ); |
|
565 | + for ($i = 0; $i < $len_itu; $i++) { |
|
566 | + $chksum ^= ord($itu[$i]); |
|
567 | 567 | } |
568 | - $hex_arr = array('0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'); |
|
569 | - $lsb = $chksum & 0x0F; |
|
570 | - if ($lsb >=0 && $lsb <= 15 ) $lsbc = $hex_arr[$lsb]; |
|
568 | + $hex_arr = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'); |
|
569 | + $lsb = $chksum&0x0F; |
|
570 | + if ($lsb >= 0 && $lsb <= 15) $lsbc = $hex_arr[$lsb]; |
|
571 | 571 | else $lsbc = '0'; |
572 | - $msb = (($chksum & 0xF0) >> 4) & 0x0F; |
|
573 | - if ($msb >=0 && $msb <= 15 ) $msbc = $hex_arr[$msb]; |
|
572 | + $msb = (($chksum&0xF0) >> 4)&0x0F; |
|
573 | + if ($msb >= 0 && $msb <= 15) $msbc = $hex_arr[$msb]; |
|
574 | 574 | else $msbc = '0'; |
575 | 575 | $itu = '!'.$itu."*{$msbc}{$lsbc}\r\n"; |
576 | 576 | return $itu; |
@@ -595,14 +595,14 @@ discard block |
||
595 | 595 | |
596 | 596 | public function mmsitype($mmsi) { |
597 | 597 | if (strlen($mmsi) == 9) { |
598 | - if (substr($mmsi,0,3) == '974') return 'EPIRB (Emergency Position Indicating Radio Beacon) AIS'; |
|
599 | - elseif (substr($mmsi,0,3) == '972') return 'MOB (Man Overboard) device'; |
|
600 | - elseif (substr($mmsi,0,3) == '970') return 'AIS SART (Search and Rescue Transmitter)'; |
|
601 | - elseif (substr($mmsi,0,3) == '111') return 'SAR (Search and Rescue) aircraft'; |
|
602 | - elseif (substr($mmsi,0,2) == '98') return 'Auxiliary craft associated with a parent ship'; |
|
603 | - elseif (substr($mmsi,0,2) == '99') return 'Aids to Navigation'; |
|
604 | - elseif (substr($mmsi,0,2) == '00') return 'Coastal stations'; |
|
605 | - elseif (substr($mmsi,0,1) == '0') return 'Group of ships'; |
|
598 | + if (substr($mmsi, 0, 3) == '974') return 'EPIRB (Emergency Position Indicating Radio Beacon) AIS'; |
|
599 | + elseif (substr($mmsi, 0, 3) == '972') return 'MOB (Man Overboard) device'; |
|
600 | + elseif (substr($mmsi, 0, 3) == '970') return 'AIS SART (Search and Rescue Transmitter)'; |
|
601 | + elseif (substr($mmsi, 0, 3) == '111') return 'SAR (Search and Rescue) aircraft'; |
|
602 | + elseif (substr($mmsi, 0, 2) == '98') return 'Auxiliary craft associated with a parent ship'; |
|
603 | + elseif (substr($mmsi, 0, 2) == '99') return 'Aids to Navigation'; |
|
604 | + elseif (substr($mmsi, 0, 2) == '00') return 'Coastal stations'; |
|
605 | + elseif (substr($mmsi, 0, 1) == '0') return 'Group of ships'; |
|
606 | 606 | else return 'Ship'; |
607 | 607 | } |
608 | 608 | |
@@ -613,19 +613,19 @@ discard block |
||
613 | 613 | global $globalDebug; |
614 | 614 | $result = array(); |
615 | 615 | $data = new stdClass(); |
616 | - $start = strpos($buffer,"VDM"); |
|
616 | + $start = strpos($buffer, "VDM"); |
|
617 | 617 | $tst = substr($buffer, $start - 3); |
618 | - $data = $this->process_ais_raw( $tst, "" ); |
|
618 | + $data = $this->process_ais_raw($tst, ""); |
|
619 | 619 | if (!is_object($data)) { |
620 | 620 | //if ($globalDebug) echo '==== Line format not supported : '.$buffer."\n"; |
621 | 621 | return array(); |
622 | 622 | } |
623 | 623 | if ($data->lon != 0) $result['longitude'] = $data->lon; |
624 | 624 | if ($data->lat != 0) $result['latitude'] = $data->lat; |
625 | - $result['ident'] = trim(str_replace('@','',$data->name)); |
|
625 | + $result['ident'] = trim(str_replace('@', '', $data->name)); |
|
626 | 626 | $result['timestamp'] = $data->ts; |
627 | 627 | $result['mmsi'] = $data->mmsi; |
628 | - if (strlen($result['mmsi']) == 8 && substr($result['mmsi'],0,3) == '669') $result['mmsi'] = '3'.$result['mmsi']; |
|
628 | + if (strlen($result['mmsi']) == 8 && substr($result['mmsi'], 0, 3) == '669') $result['mmsi'] = '3'.$result['mmsi']; |
|
629 | 629 | $result['mmsi_type'] = $this->mmsitype($result['mmsi']); |
630 | 630 | if ($data->sog != -1.0) $result['speed'] = $data->sog; |
631 | 631 | if ($data->heading !== '') $result['heading'] = $data->heading; |
@@ -635,16 +635,16 @@ discard block |
||
635 | 635 | if ($data->type !== '') $result['type'] = $data->type; |
636 | 636 | if ($data->typeid !== '') $result['typeid'] = $data->typeid; |
637 | 637 | if ($data->imo !== '') $result['imo'] = $data->imo; |
638 | - if ($data->callsign !== '') $result['callsign'] = trim(str_replace('@','',$data->callsign)); |
|
638 | + if ($data->callsign !== '') $result['callsign'] = trim(str_replace('@', '', $data->callsign)); |
|
639 | 639 | if (is_numeric($data->eta_month) && $data->eta_month != 0 && is_numeric($data->eta_day) && $data->eta_day != 0 && $data->eta_hour !== '' && $data->eta_minute !== '') { |
640 | - $eta_ts = strtotime(date('Y').'-'.sprintf("%02d",$data->eta_month).'-'.sprintf("%02d",$data->eta_day).' '.sprintf("%02d",$data->eta_hour).':'.sprintf("%02d",$data->eta_minute).':00'); |
|
640 | + $eta_ts = strtotime(date('Y').'-'.sprintf("%02d", $data->eta_month).'-'.sprintf("%02d", $data->eta_day).' '.sprintf("%02d", $data->eta_hour).':'.sprintf("%02d", $data->eta_minute).':00'); |
|
641 | 641 | if ($eta_ts != '') $result['eta_ts'] = $eta_ts; |
642 | 642 | } elseif (is_numeric($data->eta_hour) && is_numeric($data->eta_minute)) { |
643 | - $eta_ts = strtotime(date('Y-m-d').' '.sprintf("%02d",$data->eta_hour).':'.sprintf("%02d",$data->eta_minute).':00'); |
|
643 | + $eta_ts = strtotime(date('Y-m-d').' '.sprintf("%02d", $data->eta_hour).':'.sprintf("%02d", $data->eta_minute).':00'); |
|
644 | 644 | if ($eta_ts != '') $result['eta_ts'] = $eta_ts; |
645 | 645 | } |
646 | 646 | if ($data->destination != '') { |
647 | - $dest = trim(str_replace('@','',$data->destination)); |
|
647 | + $dest = trim(str_replace('@', '', $data->destination)); |
|
648 | 648 | if ($dest != '') $result['destination'] = $dest; |
649 | 649 | } |
650 | 650 | $result['all'] = (array) $data; |