Vehicle Fuel Monitoring Device with BLE 5.0
Vehicle fuel monitoring device UM770 is an advanced GPS tracker with advanced features that no other device include. With BLE 5.0 module, it can connect with wireless bluetooth sensors, including BLE door sensor, BLE temperature monitoring sensor, BLE driver identification button, BLE tire pressure monitoring and BLE wireless relay. Both BLE temperature monitoring sensor and wireless relay can work also without connecting with GPS tracker UM770.
With charged advanced GPS web tracking software, the vehicle fuel monitoring device UM770 can support 2 tanks fuel monitoring at same time, by connecting with ultrasonic fuel sensor with analog voltage input, and the other with RS232 input. Free tracking software support only 1 tank fuel monitoring.
It supports also anti-Jammer alarm and operation. When signal jamming is detected, tracker can automatically send Jammer detected alarm and control relay to cut off engine. The trigger can either be Jammer or Speed or ACC status or Power cut alarm, etc.
It supports relay control triggered by Speed, so as to work as a GPS integrated speed limiter.
- Quad band GSM/GPRS 850/900/1800/1900 MHz
- Support GNSS, GPS and Beidou positioning system, mainly GNSS
- High Performance Internal Antennas
- Flat size design and built in 260mAh battery
- Built in memory to store 60,000 way points at GSM blind area
- Support wireless control with built-in BLE 5.0 module
- Anti-theft alarm: When vehicle engine turns on, sends ACC ON alarm
- Towing alarm: When vehicle is moved certain distance, send towing alarm
- Over speed alarm
- External power low alarm: If vehicle battery power is low to preset value, device sends alarm
- Vibration alarm: When vehicle ignition is off, vibration detected, device sends alarm
- Jammer detection alarm: when device GSM signal becomes weak than preset value, device sends alarm
- Driver behavior monitoring: Harsh driving, acceleration and collision monitoring via acceleration
- Authorized driving: Only driver with correct driver information can start vehicle engine, including BLE tag, RFID card, Finger print.
- Engine cut off with relay with output 1. Wireless BLE relay is available .Device has 2 output.
- Temperature monitoring with wireless BLE sensor.
- Door status monitoring with wireless BLE sensor.
- Tire pressure monitoring with wireless TPMS sensor.
- Support reports to 2 IP at same time.
- OTA-support device firmware upgrading
- Support dual tank monitoring with analog input and RS232 to connect 2 fuel sensors
- Support output control by alarm trigger, like Speed, Jammer, Geo-fence, External power cut, Engine status, which makes device a perfect GPS integrated Speed limiter and vehicle anti-theft device
| GSM Specifications | |
| Frequency | Quad band: 850/900/1800/1900 MHz |
| GPRS | GPRS multi-slot class 12 |
| RMS Phase Error | 5 deg |
| Max Out RF Power | GSM850/GSM900: 33.0±2 dBm DCS/PCS: 30.0±2 dBm |
| Dynamic Input Range | -15 ~ -108 dBm |
| Receiver Sensitivity | Class Ⅱ RBER 2% (-107 dBm) |
| Stability of Frequency | < 2.5 ppm |
| Max Frequency Error | ±0.1 ppm |
| GNSS Specifications | |
| GNSS Chipset | All-In-One GNSS receiver |
| Parallel GNSS | GPS+Glonass+Galileo+Beidou |
| Receiver type: | 33 tracking / 99 acquisitions- channel GNSS receiver |
| Sensitivity | Cold start: -148 dBm Reacquisition: -163 dBm Tracking: -165 dBm |
| Position Accuracy (CEP) | Autonomous: < 2.5m |
| TTFF (Open Sky) | Cold start: < 28s Warm start: < 26s EPO assist: < 13s Hot start: < 1s |
| Interfaces | |
| RS232 | 1 RS232 Connector |
| Digital Inputs (2) | 1 digital input for ignition detection 1 digital input for normal use (Door/AC…) |
| Digital Outputs | 1 digital output for relay control |
| Analog Input (2) | 1 analog voltage input for fuel detection, etc. 1 analog resistance input for temperature, etc. |
| GSM/GNSS/Bluetooth Antenna | Internal only |
| Indicator LED | GSM, GNSS and Power |
| Bluetooth | 4.0 |
| General Specifications | |
| Sleep Current | 7mA/12V, 5mA/24V |
| Work Current | 25mA/12V, 15mA/24V |
| Dimensions | 81mm*39mm*13mm |
| Weight | 55g |
| Backup Battery | Li-Polymer 250 mAh/ 3.7V |
| Operating Voltage | 7V to 32V DC |
| Operating Temperature | -30℃ ~ +80℃ (-22°F ~ 176°F) |
| Storage Temperature | -40℃ ~ +85℃ (-40°F ~ 185°F) |
| Air Interface Protocol | |
| Transmit Protocol | TCP, UDP, SMS |
| Protocol Check & Encryption Support | MD5/ AES256 |
| RS232 Accessories Support | Yes |
| BLE Accessories Support | Yes |
| Scheduled Timing Report | Report position and status at preset intervals |
| Geo-fence | Geo-fence alarm and parking alarm support up to 64 internal geo-fence regions |
| Low Power Alarm | Alarm when backup battery is low |
| Power on Report | Report when the tracker is powered on |
| Tow Alarm | From internal 3-axis accelerometer |
| Driving Behavior Monitoring | Aggressive driving behavior detection, e.g. harsh braking and acceleration |
| Crash Detection | Accident data collection for reconstruction and analysis |
| Special Alarm | Special alarm based on the digital/analog inputs |
| Remote Control | OTA control of outputs |
| GSM Signal Jamming Detection | Report GSM jammer |
| Data Roaming Control | Avoid additional data consumption |
Since GPS Tracker UM770 support Bluetooth 5.0, we develop a couple of wireless bluetooth sensors to work with it, including wireless relay, wireless temperature sensor, wireless door sensor.
User manual Download:
Wireless relay User Manual V1.1
Wireless Tempe. Sensor User Manual V1.1
Wireless Door Sensor User Manual V1.1
Flayer Download:
Send SMS command to activate Jammer detection, as below:
| SMS command format | Introduction |
| JAMMERD,0000,A,B,C,D# | 1. This function only works when vehicle is ignition off or idling 2. A=0/1, 1=enable, 0=disable, default is 0 3. B, network signal strength, unit is %, range is 50-100 When device network connection(to server) is down but current network signal strength>B, device would determine jamming is happening. Suggestion value B=80 4. C, jamming duration, range 1-255, unit is second. If B happened and continued C seconds, device will send a jamming detected alarm to server. Suggestion value C=30 5. D, network recover duration, range 1-255, unit is second. If network connection keeps alive for D seconds after jamming detected, device will send a jamming disappear alarm to server. Suggestion value D=30 |
You will need setup right signal strength per local GSM coverage signal to determine jammer or not, otherwise it will affect device normal usage.
Send command to activate Relay control, relay is connected with GPS Tracker Digital Output 1. Make sure jammer detection command is sent first.
| SMS command format | Introduction |
| JAMMERA,0000,A# | 1. A=0, doesn’t enable digital output1 when jamming detected 2. A=1, enable digital output1 when jamming detected, and recover digital output 1 when jamming disappeared, control relay to cut off engine. |
The exact command is: JAMMERA,0000,1#
To protect vehicle, user can setup ACC on alarm and cut off engine in case of theft.
1 Send command to activate ACC on alarm
| SMS command | Introduction |
| ANTITHEFT,0000,A# | Antitheft alarm 1. A=0, disable 2. A=1, enable |
The example command here is: ANTITHEFT,0000,1#
2 Send command to activate Relay control once ACC is ON
| SMS command | Introduction |
| DOUT_CONTROL,0000,A,B,C# | Alarm based DOUT trigger control 1. A=the alarm code(HEX), refer to the alarm code list 2. B=DOUT control number B=0, doesn’t trigger any DOUT B=1, trigger DOUT1 B=2, trigger DOUT2 B=3, trigger DOUT1 and DOUT2 3. C=the DOUT “on” period. Unit is second. Range 0-65535 Either B or C =0, when alarm happened, it will trigger the DOUT. |
The example command here is: DOUT_CONTROL,0000,10,1,36000
In this command, when device ACC turns on without authorization, tracker shall control relay to cut off engine for 1 0hrs.
Vehicle fuel monitoring device needs to connect with fuel sensor in order to monitor vehicle fuel consumption, either vehicle own fuel sensor or external fuel sensor. No matter which type of fuel sensor, it should give out analog voltage signal when fuel amount changes.
We offer 3 type of fuel sensors, and all will need hole drilling on tank.
1 Normal fuel probe, accuracy error is 10mm
2 Capacitance fuel probe, accuracy error is 1mm, and it is cuttable to suit different length
3 Ultrasonic fuel sensor, accuracy error is 0.1mm. It is to be installed on top of tank.
Click to check Fuel sensor connection diagram.
1 Send command to setup a speed limit.
| SMS command format | Introduction |
| SPEED,0000,A# | Over speeding alarm 1. A, speed threshold, the unit is KM/h, range is 0-65535 2. A=0, disable alarm, default is 0 3. When the vehicle speed is ≥A, alarm will be triggered |
The example command is SPEED,0000,80 (If you need restrict vehicle speed at 80KM/H)
2 Send command to activate relay control when speed limit is triggered.
| SMS command format | Introduction |
| DOUT_CONTROL,0000,A,B,C# | Alarm based DOUT trigger control 1. A=the alarm code(HEX), refer to the alarm code list 2. B=DOUT control number B=0, doesn’t trigger any DOUT B=1, trigger DOUT1 B=2, trigger DOUT2 B=3, trigger DOUT1 and DOUT2 3. C=the DOUT “on” period. Unit is second. Range 0-65535 Either B or C =0, when alarm happened, it will trigger the DOUT. |
The example command is: DOUT_CONTROL,0000,4,1,2
In this command, when speed limit is reached, GPS tracker will command relay to cut off fuel supply for 2 secs, so as to slow down vehicle speed. Long interval may shutdown engine.
IMPORTANT NOTICE: To limit speed, please connect relay to cut off fuel other than electricity. Electricity cut off shall make vehicle stop suddenly and may cause serious accidents. Please test this function before apply it. The test speed limit has better to be under 30KM/H.
Click to check Relay connection diagram.
Per the Alarm Code(HEX), we can use any alarm as a trigger so as to control relay to execute.
Examples:
If the device trigger over speed alarm, cut off engine
If the device trigger geo-fence alarm, cut off engine
If the device trigger power cut alarm, cut off engine
| Alarm Code(HEX) | Alarm Code(DEC) | Alarm |
| 1 | 1 | External Power Disconnected |
| 2 | 2 | Build-in battery low power alarm |
| 3 | 3 | SOS |
| 4 | 4 | Over Speed |
| 5 | 5 | Into Geofence |
| 6 | 6 | Out of Geofence |
| 7 | 7 | Towing |
| 8 | 8 | Vibration |
| 9 | 9 | Device get address for postion SMS |
| 10 | 16 | Anti-theft alarm |
| 11 | 17 | Ananlog input1 voltage increase |
| 12 | 18 | Ananlog input1 voltage decrease |
| 13 | 19 | Ananlog input2 voltage increase |
| 14 | 20 | Ananlog input2 voltage decrease |
| 15 | 21 | Ignition on |
| 16 | 22 | Ignition off |
| 17 | 23 | I/O(Bit 13), from 0 to 1 |
| 18 | 24 | I/O(Bit 13), from 1 to 0 |
| 19 | 25 | One idling start |
| 20 | 32 | One idling end |
| 21 | 33 | Signal jamming start, this need config |
| 22 | 34 | Signal jamming end, this need config |
| 23 | 35 | External power recover |
| 24 | 36 | External power lower than preset external power , this need config |
| 25 | 37 | Digital input3 on |
| 26 | 38 | Digital input3 off |
| 27 | 39 | Digital input4 on |