Uplink Data

This chapter describes the reported data of the device.

All data are based on following format (HEX):

Start ID Packet Length FLAG

Frame Counter

 Protocol Version Software Version Hardware Version
02 0001 2 Bytes 00 0000 01 4 Bytes 4 Bytes
SN IMEI IMSI ICCID Signal Data Length Data1 ...
16 Bytes 15 Bytes 15 Bytes 20 Bytes 1 Byte 2 Bytes N Bytes ...
Example:

02 0001 005f 00 0000 01 30313031 30313030

36373438443131323930313230303033 383638353038303631393234353133 343630303833383833383036363836

3839383630346238313032326330343536363836 10 000E

01750103677D000482FDFF050000

Type

Content
Start 02
ID 0001
Packet Length 00 5f = 95 bytes
FLAG 00
Frame Counter 0000
Protocol Version 01=V1
Software Version 30 31 30 31 => 0101=V1.1
Hardware Version 30 31 30 30 => 0100=V1.0
SN 36 37 34 38 44 31 31 32 39 30 31 32 30 30 30 33=>6748d11290120003
IMEI 38 36 38 35 30 38 30 36 31 39 32 34 35 31 33 =>868508061924513
IMSI 34 36 30 30 38 33 38 38 33 38 30 36 36 38 36 => 460083883806686
ICCID 38 39 38 36 30 34 62 38 31 30 32 32 63 30 34 35 36 36 38 36 => 898604b81022c0456686
Network Signal 10=>16 asu
Data Length 0e=>14 Bytes
Data See details below
Note: Data part is based on the format Channel + Type + Data, the Data field should follow little-endian.

Periodic Report

Item Channel Type Byte Description
Battery Level 01 75 1 UINT8, Unit: %
Temperature 03 67 2 INT16/10, Unit: °C
Distance 04 82 2
INT16, Unit: mm
Note: When the device collect the sensor data out of measuring range, it will report fffd.
Device Position 05 00 1

00: Normal (horizontal offset angle < 20°)

01: Tilt (horizontal offset angle ≥ 20°)

Location

 06 88 9

Byte 1-4: INT32/1000000

Byte 5-8: INT32/1000000

Byte 9: motion status, 20=unknown, 21=start moving, 22=in motion, 23=stop moving
Note: If the device fails to get GNSS data, the latitude or longitude will show ffffffff.
Example:
  1. The device supports to report sensor data according to reporting interval*cumulative numbers (30 mins*12 by default) when the device is stationary.

    017564 0367f800 04820101 050000
    Channel Type Value
    01 75 Battery: 64=>100%
    03 67 Temperature: f8 00 => 00 f8 = 248/10 =24.8 °C
    04 82

    Distance: 01 01 => 01 01 = 257mm =0.257m
    05 00

    Device Position: 00 = Normal

  2. Report when positioning setting is enabled and the device is in motion.
    050001 0688 73c177019cff080722
    Channel Type Value
    05 00

    01=Tilt
    06 88

    Latitude: 73c17701=>01 77 c1 73=24625523/1000000=24.625523

    Longitude: 9cff0807=>07 08 ff 9c=118030236/1000000=118.030236

    22=in motion

Alarm Report

The device supports to report below types of alarm report packets.
Item Channel Type Byte Description
Temperature Threshold Alarm 83 67 3

Byte 1-2: Temperature, INT16/10, Unit: °C

Byte 3: 00=Alarm dismiss, 01=Alarm

Distance Threshold Alarm

 84 82 3

Byte 1-2: Distance, INT16, Unit: mm

Byte 3: 00=Alarm dismiss, 01=Alarm
Example:
  1. Distance Threshold: report when distance reaches the threshold or returns back to normal value.

    8482330701
    Channel Type Value
    84 82

    33 07 =>07 33 = 1843mm = 1.843m

    Alarm Status: 01= Alarm
  2. Temperature Threshold: report when the abrupt change of temperature is greater than 5 °C.

    8367220101

    Channel Type Value
    83 67

    22 01 =>01 22 = 290/10 = 29°C

    Alarm Status: 01= Alarm