Simulink Navigation

HIL Simulator enables simulation with Simulink software for a physical autopilot.

With this simulation option, users can integrate the autopilot into their Simulink workspace, achieving a simulation as flexible and complex as they intend to design in this environment.

This section summarizes the operation with Simulink Navigation.

Data blocks

The communication of Veronte Autopilot and the model of Simulink is done through customized Simulink blocks: Data Sender and Data Receiver. These blocks must be added and configured in Simulink in order to establish this communication.

Data blocks are blocks of Simulink configured to send or receive certain parameters from the autopilot, allowing the analysis of an Autopilot 1x in the designed simulation. The following diagram summarizes how HIL Simulator operates with Simulink workspace:

Data Sender configuration

The Data Sender block has the following inputs:

Field	Input size	Required signal format
Speeds	1x1	IAS (knots)
LLA	4x1	Latitude (deg), Longitude (deg), Altitude MSL (ft.), Altitude AGL (ft.)
Navigation velocity	3x1	Velocities East, -Down, -North (m/s) Important Some of the fields are inverted (-)
Angular velocity	3x1	Pitch rate, Roll rate, Yaw rate (rad/s) Note All in body-axis
Pitch, Roll, Heading	3x1	Pitch, Roll, Yaw (deg) Note All in body-axis euler angles
G-Load	3x1	-gNormal, gAxial, gLateral (g) Important Some of the fields are inverted (-).

Steps to send these parameters to Veronte Autopilot:

In Simulink:

1. Ensure that the inputs have the required format and size detailed in the table above.

2. In the Block Parameters menu of the Data Sender block, configure the IP and Port entries according to HIL configuration.

   Warning

   In the Data Sender block, the 'Port' corresponds to HIL 'Receive Port'.

   

In 1x PDI Builder:

3. In HIL menu, configure the variables the Autopilot 1x must receive from Simulink simulation apart from the navigation variables.

   Important

   Navigation variables are automatically shared through HIL (received by 1x). Additional variables to receive will depend on the simulation design and purpose. This is an example.

   

   For more information about this configuration, consult HIL - Configuration section of 1x PDI Builder manual.

Data Receiver configuration

Steps to receive parameters from Veronte Autopilot:

In 1x PDI Builder:

1. In HIL menu, configure the variables the Autopilot 1x must send to Simulink simulation.

   Note

   The variables to send will depend on the simulation design and purpose. This is an example.

   

In Simulink:

2. In the Block Parameters menu of the Data Receiver block, configure the IP and Port entries according to HIL configuration.

   Warning

   In the Data Receiver block, the 'Host data port' corresponds to HIL 'Send Port'.

   

3. To access the received variables independently, a Bus Selector block may be added to the Data Receiver block.

   This block outputs the selected elements separately, acting as a filter of the received values. In order to select the desired variables, open the Block Parameters menu of the Bus Selector. This is an example:

   

Simulation

For running the simulation in Simulink software:

1. Run the designed Simulink model by clickin on .

2. Start HIL simulation. Once Simulink is configured and running, click on of HIL Simulator to enable the sending of commands.