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Created page with "==Device Info Packet Structure== {| class="wikitable" |- ! colspan="5" style="background:#D3D3D3;" | Header Info Bytes |- ! Field !! Size (bits) !! Bit Range !! Description !! Breakdown |- | Start Character || 8 || 0–7 || Starting character $ (ASCII value 36) || $ |- | Length || 12 || 8–18 || 2-byte length of the data following the header || |- | No of Packets || 5 || 19–23 || NO of data Packets (always 1 with device info) || |- | IMEI || 50 || 24–74 || Unique..."
 
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==Device Info Packet Structure==
{| class="wikitable"
{| class="wikitable"
|-
|-
! colspan="5" style="background:#D3D3D3;" | Header Info Bytes
! style="background-color:#680022; color:white;" | Field
! style="background-color:#680022; color:white;" | Size (bits)
! style="background-color:#680022; color:white;" | Bit Range
! style="background-color:#680022; color:white;" | Description
! style="background-color:#680022; color:white;" | Breakdown
|-
|-
! Field !! Size (bits) !! Bit Range !! Description !! Breakdown
! colspan="5" style="background:#D3D3D3;" | Header (10 Bytes)
|-
|-
| Start Character || 8 || 0–7 || Starting character $ (ASCII value 36) || $
| Start byte
| 8
| 0–7
| Starting character $ (ASCII value 36)
|  
 
|-
|-
| Length || 12 || 8–18 || 2-byte length of the data following the header ||
| Data length
| 12
| 08–19
| 2-byte length of the data following the header
|  
 
|-
|-
| No of Packets || 5 || 19–23 || NO of data Packets (always 1 with device info) ||
| Number of data packets
| 5
| 20–24
| Number of packets (0–32)
| 0–32
 
|-
|-
| IMEI || 50 || 24–74 || Unique device identifier ||
| IMEI
| 50
| 25–74
| Unique device identifier
|  
 
|-
|-
| Packet Type || 5 || 75–79 || Integer type:
| Packet type
* 00 - Device info Packet 
| 5
* 01 - Alert Packet 
| 75–79
* 02 - OTA Packet 
| Type of packet
* 03 - Error Packet 
| 00 - Device Info
* 04 - Device configuration Packet 
 
* 05 - IP configuration Packet ||
|-
|-
! colspan="5" style="background:#D3D3D3;" | Data
! colspan="5" style="background:#D3D3D3;" | Data (110 Bytes)
|-
|-
| Time || 32 || — || UTC Timestamp (UTC time in seconds) ||
| Time
| 32
| 80-111
| UTC Timestamp
| UTC time in seconds
 
|-
|-
| Time Zone || 8 || — ||
| Time Zone
Timezone in quarter hours (e.g., 22 = +5:30). 
| 8
Each unit = 15 minutes.
| 112-119
Value 22 = 22 × 15 min.
| Timezone in quarter-hours (e.g., 22 = +5:30), quarter-hour increment means each unit represents 15 minutes. The value 22 represents 22 quarter hours. Ranges from -48 to 56, negative timezone to 2's complement representation
Range: -48 to 56. 
| eg: 22 (+5:30) → 22×15=330 minutes → 330÷60=5.5 hours → 5 hours and 30 minutes
Negative timezone in 2's complement. ||
 
|-
|-
| ICCID || 160 || — || 20 Bytes, Character string || 8991000903297069053F
| ICCID
| 160
| 120-279
| 20 Bytes, Character string
| 8991000903297069053F
 
|-
|-
| VID || 32 || — || 4 Bytes, Character string || TRAN
| VID
| 32
| 280-311
| 4 Bytes, Character string
| TRAN
 
|-
|-
| CELLULAR_MODULE_FV NAME || 40 || — || 5 Bytes, Character string || TSPJT
| CELLULAR_MODULE_FV NAME
| 40
| 312-351
| 5 Bytes, Character string
| TSPJT
 
|-
|-
| CELLULAR_MODULE_FV VERSION || 80 || — || 10 Bytes, Character string || XX.YY.ZZZZ
| CELLULAR_MODULE_FV VERSION
| 80
| 352-431
| 10 Bytes, Character string
| XX.YY.ZZZZ
 
|-
|-
| MCU_APP_MODULE_FV NAME || 40 || — || 5 Bytes, Character string || TSPJT
| CELLULAR_MODULE_FV BUILD NO
| 40
| 432-471
| 5 Bytes, Character string
| YYDDD
 
|-
|-
| MCU_APP_MODULE_FV VERSION || 80 || — || 10 Bytes, Character string || XX.YY.ZZZZ
| MCU_APP_MODULE_FV NAME
| 40
| 472-511
| 5 Bytes, Character string
| TSPJT
 
|-
|-
| MCU_APP_MODULE_FV BUILD NO || 40 || — || 5 Bytes, Character string || YYDDD
| MCU_APP_MODULE_FV VERSION
| 80
| 512-591
| 10 Bytes, Character string
| XX.YY.ZZZZ
 
|-
|-
| VN || 80 || — || 10 Bytes, Character string || KL07CP8490
| MCU_APP_MODULE_FV BUILD NO
| 40
| 592-631
| 5 Bytes, Character string
| YYDDD
 
|-
|-
| HWINFO || 88 || — || 11 Bytes, Character string || PCB-0220-AB
| MCU_BTL_MODULE_FV NAME
| 40
| 632-671
| 5 Bytes, Character string
| TSPJT
 
|-
|-
! colspan="5" style="background:#D3D3D3;" | Tail Info (2 Bytes)
| MCU_BTL_MODULE_FV VERSION
| 80
| 672-751
| 10 Bytes, Character string
| XX.YY.ZZZZ
 
|-
|-
| End Character || 8 || 0–7 || Starting character * (ASCII value 42) || *
| MCU_BTL_MODULE_FV BUILD NO
| 40
| 752-791
| 5 Bytes, Character string
| YYDDD
 
|-
|-
| CRC || 8 || 8–15 || 8-bit XOR CRC of data from $ to * (excluding $ and *) ||
| VN
| 80
| 792-871
| 10 Bytes, Character string
| KL07CP8490
 
|-
| HWINFO
| 88
| 872-959
| 11 Bytes, Character string
| PCB-0220-AB
 
|-
! colspan="5" style="background:#D3D3D3;" | Tail(2 Bytes)
|-
| End Character
| 8
| 0–7
| Starting character * (ASCII value 42)
|  
 
|-
| CRC
| 8
| 8–15
| 8-bit XOR CRC of data starting from $ to * (excluding $ and *)
|  
 
|}
|}
==Sample Packet==
<pre>
{ HEX: "2406e0e21aeb7abfd58068abec441638393931343632313630353131303436363837465452414e545344344720332e20302e20202035202020203054532d443420332e20302e20202035323532313154532d445220332e20302e202020323235323131585858585858585858585043422d303236312d41412a44" "imei": 862942074896044, "packet_type": 0, "no_packets": 1, "dateTime": 1756097604, "timezone": 22, "dateTime_tz": "2025-08-25 10:23:24", "iccid": "8991462160511046687F", "vid": "TRAN", "cmfv_name": "TSD4G", "cmfv_version": " 3. 0. 5", "cmfv_build": " 0", "mcua_name": "TS-D4", "mcua_version": " 3. 0. 5", "mcua_build": "25211", "mcub_name": "TS-DR", "mcub_version": " 3. 0. 2", "mcub_build": "25211", "vn": "XXXXXXXXXX", "hwinfo_build": "PCB-0261-AA", "error_code": 0 }
</pre>                                                                                             
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Device Info Packet Parser</title>
  <style>
    body { font-family: Arial, sans-serif; }
    textarea { width: 100%; height: 100px; font-family: monospace; }
    button {
      padding: 5px 15px;
      border-radius: 20px;
      margin-top: 10px;
      font-weight: bold;
      background-color: #680022;
      color: white;
      border: none;
      cursor: pointer;
    }
    button:hover {
      background-color: #4c0019;
    }
    table { width: 100%; border-collapse: collapse; margin-top: 20px; }
    th, td { border: 1px solid #ccc; padding: 8px; text-align: left; }
    th { background-color: #680022; color: white; }
  </style>
</head>
<body>
<h2>Device Info Packet Parser</h2>
<textarea id="packetInput" placeholder="Paste packet here..."></textarea><br>
<button onclick="parsePacket()">Parse Packet</button>
<h3>Parsed Output:</h3>
<table id="resultTable">
  <thead><tr><th>Field</th><th>Value</th></tr></thead>
  <tbody></tbody>
</table>
<script>
function hexToBits(hex) {
  return hex.match(/.{1,2}/g).map(byte =>
    parseInt(byte, 16).toString(2).padStart(8, '0')).join('');
}
function bitsToInt(bits) {
  return parseInt(bits, 2);
}
function bitsToSignedInt(bits) {
  const value = parseInt(bits, 2);
  const max = Math.pow(2, bits.length);
  return value >= max / 2 ? value - max : value;
}
function bitsToAscii(bits) {
  return bits.match(/.{8}/g).map(b => String.fromCharCode(parseInt(b, 2))).join('').trim();
}
function bigIntFromBits(bits) {
  return BigInt('0b' + bits).toString();
}
function parsePacket() {
  const hex = document.getElementById('packetInput').value.trim().toLowerCase();
  const resultBody = document.querySelector("#resultTable tbody");
  resultBody.innerHTML = "";
  if (!hex || !hex.startsWith("24")) {
    alert("Invalid packet");
    return;
  }
  const bits = hexToBits(hex);
  const output = (label, value) => {
    const row = document.createElement("tr");
    row.innerHTML = `<td>${label}</td><td>${value}</td>`;
    resultBody.appendChild(row);
  };
  // Corrected IMEI extraction using bit-level parsing
  const imei = bigIntFromBits(bits.slice(25, 75));
  output("IMEI", imei);
  const packetType = bitsToInt(bits.slice(75, 80));
  output("Packet Type", packetType);
  const tsBits = bits.slice(80, 112);
  const timezoneBits = bits.slice(112, 120);
  const ts = bitsToInt(tsBits);
  const timezoneRaw = bitsToSignedInt(timezoneBits);
  const offsetMin = timezoneRaw * 15;
  const sign = offsetMin >= 0 ? "+" : "-";
  const h = Math.floor(Math.abs(offsetMin) / 60);
  const m = Math.abs(offsetMin % 60);
  const localDate = new Date((ts + offsetMin * 60) * 1000);
  const localStr = localDate.toISOString().replace("T", " ").replace(".000Z", "");
  output("DateTime (Epoch)", ts);
  output("TimeZone", `${offsetMin} mins = UTC${sign}${h}:${m.toString().padStart(2, '0')}`);
  output("DateTime (Local Time)", localStr);
  const asciiFields = [
    ["ICCID", 120, 279],
    ["VID", 280, 311],
    ["CMFV Name", 312, 351],
    ["CMFV Version", 352, 431],
    ["CMFV Build", 432, 471],
    ["MCUA Name", 472, 511],
    ["MCUA Version", 512, 591],
    ["MCUA Build", 592, 631],
    ["MCUB Name", 632, 671],
    ["MCUB Version", 672, 751],
    ["MCUB Build", 752, 791],
    ["VN", 792, 871],
    ["HWINFO", 872, 959]
  ];
  for (const [label, start, end] of asciiFields) {
    const value = bitsToAscii(bits.slice(start, end + 1));
    output(label, value);
  }
  output("Error Code", 0); // Optional placeholder
}
</script>
</body>
</html>

Latest revision as of 05:21, 18 December 2025

Field Size (bits) Bit Range Description Breakdown
Header (10 Bytes)
Start byte 8 0–7 Starting character $ (ASCII value 36)
Data length 12 08–19 2-byte length of the data following the header
Number of data packets 5 20–24 Number of packets (0–32) 0–32
IMEI 50 25–74 Unique device identifier
Packet type 5 75–79 Type of packet 00 - Device Info
Data (110 Bytes)
Time 32 80-111 UTC Timestamp UTC time in seconds
Time Zone 8 112-119 Timezone in quarter-hours (e.g., 22 = +5:30), quarter-hour increment means each unit represents 15 minutes. The value 22 represents 22 quarter hours. Ranges from -48 to 56, negative timezone to 2's complement representation eg: 22 (+5:30) → 22×15=330 minutes → 330÷60=5.5 hours → 5 hours and 30 minutes
ICCID 160 120-279 20 Bytes, Character string 8991000903297069053F
VID 32 280-311 4 Bytes, Character string TRAN
CELLULAR_MODULE_FV NAME 40 312-351 5 Bytes, Character string TSPJT
CELLULAR_MODULE_FV VERSION 80 352-431 10 Bytes, Character string XX.YY.ZZZZ
CELLULAR_MODULE_FV BUILD NO 40 432-471 5 Bytes, Character string YYDDD
MCU_APP_MODULE_FV NAME 40 472-511 5 Bytes, Character string TSPJT
MCU_APP_MODULE_FV VERSION 80 512-591 10 Bytes, Character string XX.YY.ZZZZ
MCU_APP_MODULE_FV BUILD NO 40 592-631 5 Bytes, Character string YYDDD
MCU_BTL_MODULE_FV NAME 40 632-671 5 Bytes, Character string TSPJT
MCU_BTL_MODULE_FV VERSION 80 672-751 10 Bytes, Character string XX.YY.ZZZZ
MCU_BTL_MODULE_FV BUILD NO 40 752-791 5 Bytes, Character string YYDDD
VN 80 792-871 10 Bytes, Character string KL07CP8490
HWINFO 88 872-959 11 Bytes, Character string PCB-0220-AB
Tail(2 Bytes)
End Character 8 0–7 Starting character * (ASCII value 42)
CRC 8 8–15 8-bit XOR CRC of data starting from $ to * (excluding $ and *)


Sample Packet

{ HEX: "2406e0e21aeb7abfd58068abec441638393931343632313630353131303436363837465452414e545344344720332e20302e20202035202020203054532d443420332e20302e20202035323532313154532d445220332e20302e202020323235323131585858585858585858585043422d303236312d41412a44" "imei": 862942074896044, "packet_type": 0, "no_packets": 1, "dateTime": 1756097604, "timezone": 22, "dateTime_tz": "2025-08-25 10:23:24", "iccid": "8991462160511046687F", "vid": "TRAN", "cmfv_name": "TSD4G", "cmfv_version": " 3. 0. 5", "cmfv_build": " 0", "mcua_name": "TS-D4", "mcua_version": " 3. 0. 5", "mcua_build": "25211", "mcub_name": "TS-DR", "mcub_version": " 3. 0. 2", "mcub_build": "25211", "vn": "XXXXXXXXXX", "hwinfo_build": "PCB-0261-AA", "error_code": 0 }


Device Info Packet Parser

Device Info Packet Parser


Parsed Output:

FieldValue

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