Remote axle load control and cargo weight calculation are highly demanded features of the GPS tracking systems.
Mechatronics developed Eurosens Difference onboard weighing system which provides the following features:
- Individual axle load measurement for truck and trailer.
- Cargo load calculation.
- Axle overload alarm.
- Shows axle load and cargo weight at the driver’s display.
- Transmits axle load and cargo weight values to the GPS tracking system.
Eurosens Difference system consists of several main parts:
Air spring suspension – Eurosens DPS A: |
Leaf spring suspension – Eurosens DDS A: |
- Receives information from a sensor with an analog output;
- Processes voltage signal from one load sensor (Difference-T), from 2 sensors
(Difference-T2), from 4 sensors (Difference-T4);
- Stores the parameters;
- Transmits sensor signal to the digital message in RS485 interface with track or trailer address (dimensions and weight) by LLS or MODBUS protocol;
- Stores sensor calibration data. Each sensor (analog input) can have up to 3 independent calibration tables.
- Receives the information about axle loads from Difference-T controllers.
- Determines cargo weight based on the mass-dimensions of the tractor or semitrailer truck.
- Displays axle load and cargo weight on a special indicator in the driver’s cab.
- Sends overload alarm.
- Cargo weight data is sent via RS458 output interface.
- Display
Eurosens Difference system supports various configurations of lifting axles, pneumatic suspension schemes, and trailers.
- Configuration №1. All air springs are connected parallely – here is enough 2 pressure sensors .The first one is installed on the tractor (truck itself), the other one – on semitrailer.
- Configuration №2. 2 sensors on the tractor (truck) and 2 sensors on semitrailer
- Configuration №3. 2 sensors on the truck and 4 sensors on semitrailer (in this configuration, as a rule, one axle is lifting)
- 2 sensors on the tractor (truck) and 6 sensors on semitrailer (as a rule, there are 2 lifting axles here)
Sensor placement and address can be configured with special service software Eurosens Difference configurator.
Eurosens Difference soft&info bundle: | |
Eurosens Difference installation manual: |
More information about Eurosens Difference installation and integration at this link.
What you need to know:
- The protocol of axle load transfer from Difference-T: LLS. Each sensor has its own address (0-5);
- If it is not necessary to measure the weight of the cargo (and get overload alarm) – Eurosens Display is not needed;
- The protocol of cargo weight transfer from Display: LLS (addresses 8-9, tractor and trailer);
- When changing the semitrailer, the system continues to work if a new semitrailer is also equipped with sensors and Difference-T (with calibration). No reconfigurations are required.
Some GPS trackers support remote connection of Eurosens Difference configurator. So, you can calibrate the onboard weighing system remotely. All you need – the information about real axle loads from the scales. Check more information in this video.
Try Mechatronics free online calculator for truck + trailer axle load at this link.