diff options
Diffstat (limited to 'ADSBDecoder/Decoder.swift')
| -rw-r--r-- | ADSBDecoder/Decoder.swift | 91 |
1 files changed, 44 insertions, 47 deletions
diff --git a/ADSBDecoder/Decoder.swift b/ADSBDecoder/Decoder.swift index 95f798b..65a9ddd 100644 --- a/ADSBDecoder/Decoder.swift +++ b/ADSBDecoder/Decoder.swift @@ -14,7 +14,7 @@ func BarometricAltitudeFeat(_ altitude: UInt16) -> Int { let part1:UInt16 = altitude&0xf let part2:UInt16 = (altitude>>1)&0x7ff0 let altitude25 = part1 + part2 - print("altitude2 \(altitude25) ") + //print("altitude2 \(altitude25) ") return Int(altitude25)*25-1000 } return Int(altitude)*100-1000 @@ -86,11 +86,15 @@ class DataFormat17 { var MovementField=0//37:43 var HeadingBit=0//44 var HeadingField=0//45:51 - var CPROddEven=0//53 - var CPRlat=0//54:70 - var CPRlon=0//71:87 + //var CPROddEven=0//53 + //var CPRlat=0//54:70 + //var CPRlon=0//71:87 var ParityIntegrity=0//88-111 + //all avaliable message types + var messageIdentification:ADSBTypeCodeIndentification? = nil + var messageAirbornPositon:ADSBTypeCodeAirbonePositon? = nil + init(_ adsb_data: String) { //print("Dataformat: 17!") //print(adsb_data) @@ -114,65 +118,48 @@ class DataFormat17 { //Decode Capability let cap = (bindata[0]>>1)&0x7 - print(String(format: "cap %02x", cap)) + //print(String(format: "cap %02x", cap)) Capability = Int(cap) //Decode Address Announcement let address_ann = UInt32(bindata[1])<<16 + UInt32(bindata[2])<<8 + UInt32(bindata[3]) - print(String(format: "address %06x", address_ann)) + //print(String(format: "address %06x", address_ann)) AddressAnnounced = Int(address_ann) //Decode Type Code let tc_byte = bindata[4] >> 3 - print(String(format: "tc %02d", tc_byte)) + //print(String(format: "tc %02d", tc_byte)) TypeCode = Int(tc_byte) - + + //aircraft indentification and category if (tc_byte == 4) { - let msg = ADSBTypeCode4(bindata[4...10]) + let msg = ADSBTypeCodeIndentification(bindata[4...10]) print("=====ADSB MESSSGE 04 =======") print(msg) print("============================") - } else if (tc_byte == 11) { - let msg = ADSBTypeCode11(bindata[4...10]) - print("=====ADSB MESSSGE 11 =======") + + messageIdentification = msg + //airborn position + } else if ((tc_byte >= 8) && (tc_byte <= 18)) { + let msg = ADSBTypeCodeAirbonePositon(bindata[4...10]) + print(String(format:"=====ADSB MESSSGE %02d ======= AA:%04d", tc_byte, AddressAnnounced)) print(msg) print("============================") + + messageAirbornPositon = msg + //airborn velocity } else if (tc_byte == 19) { - print("Byte 19") + print("=====ADSB MESSSGE 19 =======") + print("=====VELOCITY =======") } else { - print("Unknow TC byte") - /* - //Decode Movement Field - let mov_byte = (bindata[4]&0x7) + (bindata[5]>>5) - print(String(format: "mov %02x", mov_byte)) - - //Heading Bit - let heading_bit = (bindata[5]>>3)&0x1 - print(String(format: "heading %02x", heading_bit)) - - //Heading direction - let heading_direction = (bindata[5]&0xF)<<3+(bindata[6]>>4)&0xF - print(String(format: "hdir %02x", heading_direction)) - - //CPR Odd/Even - let cpr_odd_even = (bindata[6]>>2)&0x1; - print(String(format: "cpr %02x", cpr_odd_even)) - - //CPR lat - let cpr_lat = (bindata[6]&0x7)<<14 + (bindata[7]<<7) + (bindata[8]>>1) - print(String(format: "cpr lat %06x", cpr_lat)) - - //CPR lon - let cpr_lon = ((bindata[8]&0x1)<<16) + (bindata[9]<<8) + (bindata[10]) - print(String(format: "cpr lon %06x", cpr_lon)) - */ + print("=====ADSB MESSSGE UNKNOWN =======") } } } -class ADSBTypeCode4: CustomStringConvertible { +class ADSBTypeCodeIndentification: CustomStringConvertible { var TypeCode:Int = 4 var Category:Int = 0 var ICAOName:String @@ -200,7 +187,8 @@ class ADSBTypeCode4: CustomStringConvertible { } } -class ADSBTypeCode11:CustomStringConvertible { +//DF17 message types codes 8 to 18 +class ADSBTypeCodeAirbonePositon:CustomStringConvertible { var TypeCode:Int = 11 var SurveillanceStatus: Int = 0 var SingleAntennaFlag: Int = 0 @@ -216,7 +204,7 @@ class ADSBTypeCode11:CustomStringConvertible { let saf = bindata[5]&0x1 SingleAntennaFlag = Int(saf) let altitude = UInt16(bindata[5])<<4 + (UInt16(bindata[6])>>4)&0xf - print(altitude) + //print(altitude) Altitude = BarometricAltitudeFeat(altitude) let time = (bindata[6]>>3)&0x1 Time = Int(time) @@ -230,15 +218,24 @@ class ADSBTypeCode11:CustomStringConvertible { var description: String { var description = "SS \(SurveillanceStatus) SAF \(SingleAntennaFlag) Altitude \(Altitude)ft \n" - description += "Time \(Time) CPR \(CPRFormat) \n" + description += "Time \(Time) CPR \(CPRFormat)" + if (CPRFormat == 0) { + description += "even" + } else { + description += "odd" + } + description += "\n" description += "Lat \(Latitude) Long \(Longitude)" return description } } -class DataFormat18 { - init(_ adsb_data: String) { - print("Dataformat: 18") - print(adsb_data) +class DataFormat19:CustomStringConvertible { + init(_ bindata:ArraySlice<UInt8>) { + print("Dataformat: 19") + } + + var description: String { + return "" } } |