GVA Functional Areas

The GVA HMI is organised into functional areas that provide context-specific displays and controls for different vehicle operations.

Functional Area Overview

Key Area Description
1 SA Situational Awareness
2 WPN Weapons
3 DEF Defence
4 SYS Systems
5 DRV Driver
6 STR Set To Role
7 COM Communications
8 BMS Battlespace Management

Situational Awareness (SA)

The Situational Awareness functional area provides video and camera feeds with tactical overlays.

Single Camera View

The SA screen can display a single camera feed with an information strip:

SA Single Camera

Camera with Strip Layout

The strip layout provides additional status information alongside the camera feed:

SA Single with Strip

Quad Camera Views

Multiple camera feeds can be displayed simultaneously in quad layout:

Day Mode

SA Quad Day

Night Mode

SA Quad Night

Fullscreen

SA Quad Fullscreen

Defence (DEF)

The Defence functional area provides threat detection, classification, and tracking displays. It integrates with the DDS Battlespace Objects domain to present real-time threat information to the operator.

Radar View

The radar view is a top-down plan position indicator (PPI) centred on the vehicle. Threats are displayed as colour-coded diamond markers positioned by bearing and range:

Threat Radar

The zoomed view provides greater detail for closer threats, toggled with F2:

Threat Radar Zoom

Radar features:

  • Range rings at 2 km intervals (5 rings out to 10 km)
  • N/S/E/W compass markers that rotate with vehicle heading
  • Threat diamonds colour-coded by hostility:
    • Red — Hostile
    • Orange — Suspect
    • Yellow — Unknown
    • Green — Neutral
    • Blue — Friendly
  • Click-to-zoom toggle for close-range inspection

Threat Table

The tabular view lists all tracked battlespace objects with hostility classification, bearing, range, object type, and last update time:

Threat Table

LSAS Strip Integration

The LSAS (Local Situational Awareness System) strip shows six live camera thumbnails in a horizontally scrollable view with a 360° direction bar. When threats are present, diamond-shaped indicators are overlaid directly onto the camera thumbnails at the corresponding bearing. This provides immediate visual correlation between camera feeds and detected threats:

  • Threat diamonds are positioned vertically by range (closer = lower, further = higher)
  • Colour coding matches the radar view hostility scheme
  • Labels show threat identifiers (e.g. "H1", "S2") and range in metres
  • Indicators update in real time as threats move

The LSAS strip is toggled with F6 on the SA screen and supports day/night mode switching via F5.

Threat Lifecycle

Threats follow a DDS-driven lifecycle using the Battlespace Objects topics defined in DEF STAN 23-009 LDM:

stateDiagram-v2 [*] --> Detected : C_Battlespace_Object received Detected --> Tracking : C_Object_Location updates Tracking --> Tracking : Location / hostility updated Tracking --> Reclassified : Hostility changed Reclassified --> Tracking : Continue tracking Tracking --> Removed : C_Battlespace_Object_CP_objectDeleted Removed --> [*]
Stage DDS Topic Description
Detection C_Battlespace_Object New object with hostility classification
Tracking C_Object_Location Continuous position updates; bearing/range calculated from vehicle position
Reclassification C_Battlespace_Object Hostility updated (e.g. Unknown → Hostile)
Removal C_Battlespace_Object_CP_objectDeleted Object removed from all displays

All threat displays — PPI overlay, DEF radar, threat table, and LSAS strip diamonds — update simultaneously from the same threat data source.

Systems (SYS)

The Systems functional area provides access to vehicle subsystem status and configuration.

ASLAV System View

Example of the Systems display showing ASLAV vehicle subsystem status:

ASLAV System Display

The Systems display shows:

  • Subsystem health status
  • Component connectivity
  • Configuration parameters
  • Diagnostic information

Driver (DRV)

The Driver functional area provides driving assistance and vehicle camera views.

Front Camera View

The Driver display can show front-facing camera feed for enhanced situational awareness:

Front Driver Camera

The Driver display supports:

  • Front, rear, and side camera views
  • Night vision / thermal imaging modes
  • Picture-in-picture configurations
  • Camera overlay controls

Switching Functional Areas

Use the function select buttons (typically 1-8) to switch between functional areas:

# From keyboard in development mode
1 - Situational Awareness
2 - Weapons
3 - Defence
4 - Systems
5 - Driver
6 - Set To Role
7 - Communications
8 - BMS

Or use the HMI's touchscreen soft keys to navigate between areas.