Predictions inside Vehicles

Computations inside and around complex modelled Objects

Motivation

 

Nowadays, the exchange of data inside vehicles between numerous sensors and several central processing units is done via wired communication channels - see picture on the right. The increasing complexity of sensor systems and the large amount of cables needed are reasons to look for other transmission ways. One way is to replace the wired transmission channels by high frequency radio links. Each sensor chip inside the vehicle will transmit its data to an array of antennas located in the interior. An important point is the reliability of the radio links, especially with regard to sensors or systems which are responsible for security issues. To examine the reliability of such radio channels is the main focus.

Complex cabling in an airplane.

 

The Points of Interest

 

Focus of the investigations is the radio channel in the interior of a vehicle. The radio link is mainly characterized with the channel impulse response (CIR). For the investigation of the CIR and the propagation paths in the interior, AWE Communications' prediction model Intelligent Ray Tracing (IRT) is used. A typical 3D CIR of a prediction inside a vehicle is shown in the figure below.

Directional Channel Impulse Response (CIR) computed with the 3D Ray Tracing.

 

Usage of Vehicle Databases

 

3D models of vehicles have to be available to accomplish predictions described above. The database manager WallMan is able to read and convert many popular 3D CAD file formats to the WinProp file format.

 

More information about the vehicle databases can be found here.

3D CAD model used for a prediction.

3D Ray Tracing Propagation Model

An improved 3D Ray Tracing is used to compute the scenarios inside and around cars. More information about the prediction model can be found here.

 

Download a presentation concerning predictions inside vehicles.

Read more about the deterministic 3D Ray Tracing propagation model.

Get more information about the database manager WallMan.

Read more about vehicle databases.

 

 

 

 

 

 

 

 

 

 

 
Brochure download:
Short range radio links

 

 


 

 

 

Application: GSM Planning inside Trains

 

GSM coverage inside trains is also a topic, where detailed simulations are needed for the planning of the wireless network. Additionally these scenarios are not static, but dynamic. Read here more about dynamic scenarios.

Application: GSM on Aircraft

 

A new project deals with the GSM coverage in aircrafts. Therefore detailed simulations in aircrafts have to be accomplished. Here you can find more information about aircraft models in WinProp.