Transponder to warn oversize vehicles of road hazards and clearance restrictions.


Inventors: Michael Pravica

Dr. Michael Pravica is a professor of physics and a member of HiPSEC (High Pressure and Engineering Center). His expertise includes Explosives, High Pressure Science, Raman, Infrared, Nuclear Magnetic Resonance and X-ray Spectroscopies, Accelerator Physics

The Invention: 

Proposing the manufacture and use of a small wireless two-way (or one -way) transponder device that is capable of sending RF or microwave signals approaching oversized or irregular vehicles to automatically warn them of height, width, length, weight or other restrictions in the hopes of preventing catastrophic accidents that routinely occur on our highways, railways and waterways. A receiver inside the vehicle is tuned to receive the messages from the transponder and will warn the driver with an audio, vibrating and flashing light alert of a pending restriction. Information about the vehicle such as registration number and speed may also be recorded to aid in accident reconstruction and liability in the case of an accident. Vehicles include oversized trucks, trucks carrying oversized loads, ships, trains, among other oversized vehicles and/or vehicles carrying oversized loads. This device could warn drivers (automatically) of a pending lane restriction.


  • There is no electronic system to directly warn drivers, pilots or captains of pending restrictions. 
  • There are passive signs (lighted and unlighted) that are often missed or ignored with the result of costly and often fatal accidents that could have been easily prevented by actively warning the operators. 
  • Information from the driver's receiver can be recorded by the transponder to aid in accident reconstruction and assignment of liability by obtaining the vehicle registration and speed. 
  • The speed could be determined by radar from the host device or by GPS installed inside the receiver inside the vehicle.
  • This device would be very effective as an active warning device for restrictions (bridges, construction, etc) which could save millions of dollars every year by preventing or at least reducing accidents where an oversize vehicle. 

Market Opportunity: 

According to VantageMarket Research, the transponder market is currently valued at approximately 22.2B in 2022. This is expected to grow and reach a value of 33.75B by the year 2030 at a CAGR of 5.5%.

Intellectual property:

  • Concept
Patent Information:
For Information, Contact:
Michael Mosher
Director of Commercialization
University of Nevada, Las Vegas
Michael Pravica
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