Ulbotech T381

Ulbotech T381
Manufacturer: Ulbotech
Forum Discussion

Number of units


The following data should also be added to Ulbotech T381 unit properties section of Wialon GPS tracking software :

Device type: Ulbotech T381
Unique ID: imei

Specify the following parameters in configuration software or configuration Ulbotech T381 for use in Wialon Hosting :

Server port: 21141

2603 units of Ulbotech T381 device type are connected to Wialon Data Center. This represents 3.2% of all OBD trackers connected.

Below chart represents the dynamic of connections in the last 30 days:

Parameter name Description Units
adc0 External power supply voltage V
adc1 Device temperature °C
adc2 Device backup battery voltage V
adc3 Analog input voltage (connect to device IO port) V

Alarm triggered. Each bit relate to one alarm status of the device:
Bit0: External Power off alarm
Bit1: Motion alarm
Bit2: Over speed alarm
Bit3: Jamming alarm
Bit4: Geo-fence alarm
Bit5: Towing alarm
Bit6: Input low alarm
Bit10: Panic button alarm (SOS)
Bit11: OBD alarm
Bit14: Accident alarm
Bit15: Power low alarm

cell_id ID of Base transceiver station (BTS) or sector of a BTS within a Location area code (LAC)

Device status. Each bit relate to one status of the device:
Bit0: Powered with external/internal power
Bit1: Move/stop
Bit2: Over speed status
Bit3: Jamming status
Bit4: Geo-fence alarm status
Bit5: Immobilize status
Bit6: ACC status
Bit7: Input level low/high
Bit8: Input level middle
Bit9: Engine status
Bit10: Panic button status
Bit11: OBDII alarm status
Bit12: Angle rapid change alert
Bit13: Speed rapid change alert
Bit14: Domestic roaming (judged by MNC)
Bit15: International roaming (judged by MCC)

fuel_volume Fuel consumption Liter

Geo-fence alarm status. Each bit represents one geo-fence, bit0 represents geo-fence1, bit4 represents geo-fence5
. Bit definition:
0: no alarm triggered in this fence
1: alarm triggered in this fence


Geo-fence in/out status. Each bit represents one geo-fence, bit0 represents geo-fence1, bit4 represents geo-fence5
. Bit definition:
0: device out the fence or no fence is set in this bit
1: device is inside of the fence


2D/3D locating mark:

1: no signal

2: with 2D signal

3: with 3D signal

gsm_signal GSM signal strenth -dbm

Harsh driver behavior data. Each bit relate to one status of the hash driver behavior:
Bit0: Rapid Acceleration
Bit1: Rough Braking
Bit2: Harsh course
Bit3: No warm up
Bit4: Long idle
Bit5: Fatigue driving
Bit6: Rough terrain
Bit7: High RPM

hdop HDOP (Horizontal Dilution of Precision)
lac Local Area Code
mcc Mobile Country Code
mileage Mileage m
mnc Mobile Network Code
sN_pidM Value of OBDII PID M of server N
vin Vehicle identification number

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