Wireless Load Weight Monitoring Via a Mobile Device Based on Air Suspension Pressure
Alexander W. Layton, Andrew D. Balmos, Derek L Hancock, Aaron C. Ault, James V. Krogmeier, Dennis R. Buckmaster · 2012 Dallas, Texas, July 29 - August 1, 2012 · 2012
A system was designed and tested to measure pressure in the airbag suspension components of an over-the-road tractor trailer and use those signals to wirelessly display load weight. Three subcomponents (a HID -- human interface device and two DPUs -- digital processing units) were required and communicated using Zigbee wireless devices. Except for a region directly in front of the cab, the unit transmitted weights up to 45 m. Effect of number of calibration points on system accuracy was evaluated.