LCA AVIONICS - As per different sources

[ptltejas]

Organisation


SYSTEMS DIRECTORATE

1. Avionics and Electronical systems

SALIENT FEATURES OF LCA AVIONICS:
Integrated communication system,
Defensive aids, cockpit controls,
On-board monitoring system,
Reversionary and backup instruments,
Stores management system,
Utility systems management systems and flight control systems.
Built around MIL-STD-1553B
Armed with a full glass cockpit
Hardware – COTS products and Open interface standards.
Software – Object Oriented Analysis and design techniques and IEEE 12207 process standard.


Avionics
PV2 Architecture
Major sub systems
Test Facilities
Maintenance


PV2 ARCHITECTURE:
LCA AVIONICS is built around 3 data and two-weapon bus configuration.
LRU (Line Replaceable Unit) concept adopted.
Top down functional decomposition with maximum cohesion and minimum coupling.

 

[ptltejas]

2. Avionics Sub Systems


Major Sub Systems
OAC
MMR
SMS
SSDU
MF-UFCP
CSIO-HUD
HMD
SSCDR
VDR
INS
INTEGRATED ECM SUITE
INTEGRATED COMMUNICATION SYSTEM
FSP/SSP


Open Architecture Computer (OAC)
PowerPC / VME64 based core computer combining Mission Computer (MC), Display Processor (DP) and Video Switching Unit (VSU) functionality
PMC (PCI Mezzanine Card) based MIL-STD-1553B, RS422, raster and cursive video graphics modules.
Computational power : 20 MFLOPS
Graphics throughput : 60 M pixels per second



Multi Mode Radar (MMR)
Primary sensor for avionics and weapon system with
Fully coherent pulse doppler system
Low, medium and high PRF (Pulse Repetition
Frequency) capabilities with air-to-air, air-to-
ground, air-to-sea and ground mapping modes
Excellent detection range in look-up and look-down
modes
Frequency agility and built-in Electronic Counter-
Counter Measures (ECCM) feature
Multi target search and track-while-scan modes as well as ground mapping feature



Stores Management System (SMS)
Nine Weapon Replaceable Assemblies (WRA): Stores Interface Box (SIB) and eight Pylon Interface Boxes (PIBs)
Integrated control of air-to-air, air-to-ground and air-to-sea weapons, drop tanks, ECM pods, rockets, guns etc.
High performance 32 bit single chip micro controller based dual redundant architecture with graceful degradation
Localized Pylon Interface Units to control MIL-1760C, Indian, Russian and Western weapons
Flexible system architecture for addition of new stores
Design and construction as per MIL-STD-810D and MIL-STD-461C to meet stringent environmental conditions
Full maintainability with VAST(Versatile Avionics Shop Testing) compatibility

 

[ptltejas]

3 more Avionics Sub Systems

Avionics Major Sub Systems Contiunation
Smart Standby Display Unit (SSDU)
Stand-alone AMLCD based 3"x3" color display unit
Generates and displays page information based on the parameters received through its RS422, Arinc 429, Discrete and Analog interfaces
SSDU on Left Main Instruments Panel(LMIP) performs the function of GUH (Get-U-Home)
SSDU on Right Main Instrument Panel (RMIP) performs the function of Engine Fuel Indicator (EFI)


Multi Function – Up Front Control Panel (MF-UFCP)
Helps the pilot to initialize the Avionics.
Interactive AMLCD(Active Matrix Liquid Crystal Display) based monochrome display
NVG(Night Vision Goggle) compatible
Pilot friendly editor
Hot selection of system parameters
IST/GPS (Indian Standard Time/Global Positioning System) time display


CISO-Head Up Display (HUD)
Monochrome display with NVG(Night Vision Goggle) compatibility
Displays flight information parameters, navigational symbols and target / weapon release cues on its screen, collimated by an optical module
Provides simultaneous view of symbols along with outside vision
MF-UFCP integrated
Helmet Mounted Display (HMD)
Provides head pointing information and head referenced display surface/symbology to the pilot
Facilitates easy target (aerial/ground based) designation
Flexible pilot's field of view helps in missile head/weapon sensor slewing


Solid State Crash Data Recorder (SSCDR)
records different aircraft discrete, analog parameters in flight along with the voice/audio, recorded flash memory data downloaded and analyzed before next sortie.
Integrated ECM Suite
EW(Electronic Warfare) "armour" to enhance LCA capability
Effective use of EM(Electro Magnetic) spectrum and denying the same to hostile forces.


Integrated Communication System (INCOM)
Intended to provide Normal/Secure Jam resistant voice/data communication for Air to Ground and Air to Air in V/UHF bands
System is provided with ECCM features in the tactical frequency band


Environmental Control Fuel Management - Electronic Unit (ECFM-EU)
Manages, controls & maintains aircraft environment which includes oxygen system, bleed air, cooling pack temperature,
anti-icing, cabin temperature, avionics bay cooling, radar cooling and pressurization systems.
Performs fuel system and refuel management.


Hydraulics, Engine, Electrical & brake Management System- Electronic Unit (HEEMS-EU)

Manages, maintains & controls hydraulics, engine and electrical system
Includes secondary power system, starting system, fire detection system,
engine accessory bay, undercarriage system, wheel brake management and nose
wheel steering.

 

[ptltejas]

4. Integrated Test Complex


Various test and evaluation facilities are interlinked namely:
System Design and Evaluation Facility(SDEF)
MMR Test Rig
Weapon Integration Rig
OAC Rig
Iron Bird
Static Rig,etc

Provides realistic environment for :
Avionics and weapon delivery missions.
Simulation of stores/weapons,use of actual or simulated LRUs/Sensors
High fidelity cockpit ( part of SDEF) helps in design and evaluation of PVI issues like :ergonomics, warning
philosophy, weapon aiming and deployment cues, and assessment of pilot workloads.
Flight operating procedures practice for different profiles of flight and weapon delivery.


CEF Rigs:
Cockpit Environment Facility is a fixed Base Facility, which will cater to a single seater fighter (Navy) configurations. It also caters to the new generation cockpit for LCA Air force from PV2 (Proto Vehicle – 2 ) and beyond. This facility consists of one to one size cockpit shell with canopy bubble, windscreen and nose cone. The cockpit control switches, indicators, displays and standby instrumentation will be mounted exactly as per the aircraft cockpit design

The aircraft sub-systems, namely engine, fuel system, electrical system, hydraulic system, nose wheel steering, environment control system, etc, are simulated. Outside the window imagery is simulated,

generated and projected. In other words, the functionality of actual LCA aircraft is simulated


MMR Rigs
MMR tests on ground with planned sorties of aircrafts.
To support MMR – Hack trials.
Test facility for trouble-shooting/fault diagnosis and rectification up to cassette/module level.
Provision to create and investigate fault reported during flight.
Testing of MMR LRUs on ground after fault rectification before resumption of Hack trial.
MMR flight data analysis (off-line).
To support MMR flight trials on LCA.

 

[ptltejas]

5. Weapon Rigs
It emulates all store LRU's (PIB, SIB) using PCs & specific hardware, configurations and loads for monitoring purpose. SMS architecture timing analysis, validation, stressing, data latency, environment for integration of store/weapon. Data acquisition system for monitoring discrete signal & Mux data. It facilitates error injection during SMS hardware & software integration. Also, emulates aircraft AC/DC electrical bus.

MAINTENANCE PHILOSOPHY:
Systems:
USP IS MAINTENANCE ADDRESSED AS PART OF SYSTEM DESIGN
PROACTIVE MAINTENANCE FOLLOWED
SOFTWARE INTENSIVE
GOAL IS TO HAVE THE CAPABILITY TO DETECT AND ISOLATE 95% INTERNAL FAULTS
LEVELS VISUALIZED
LEVEL I : IN-FLIGHT TESTS FOR DATA COLLECTION
LEVEL II : SPECIFIC TO TYPE TEST EQUIPMENT TO ISOLATE UNIT LEVEL FAILURE
LEVEL III: AUTOMATIC TEST EQUIPMENT TO ISOLATE CARD /COMPONENT LEVEL FAILURE
TESTS DEFINED :
SPOST : SHORT POWER ON SELF TEST
CBIT : CONTINUOUS BUILT IN TEST
INITIATED TEST : PILOT INITIATED TEST
LPOST : LONG POWER ON SELF TEST

 

[ptltejas]

6. Weapon systems

ores Management System (SMS)
Integrated control of air to air and Air to Ground Weapons,Rockets and Gun
32 Bit Single Chip Micro Controller Based Dual Redundant Architecture
MIL-1553B Armament Bus for Intra System Communication and weapon Interface.
Localized Pylon Interface units to Control indigenous, Russian, Western and 1760 weapons
Flexible system Software Architecture for addition to new Weapon Type.
SIB Salient Features
SIB Function as RT to Recieve Commands from OAC on the Avionics Bus
Management of Power Supply to the stores.
Functions as Bus Controller to all PIBs for sending commands on the B4/B5 Bus
Monitors and Controls the safety release of stores
Provides direct interface to Gun and Chaff & Flare System
Management of High Bandwidth & Low Bandwidth signals
Provides Emergency jettisoning circuits with time delay relays.
PIB Saleint Features
PIB Function as RTs to recieve commands from SIB on the Avionics (B4/B5) Bus
Monitoring of Power Supply to Store release
Management of Normal Release and Alternate Release circuits for the stores
Monitors and Controls Safety release of stores
Provides a direct interface 1760C Stores
Privides Emergency jettisoning circuits
Management of fusing to stores
Detection of Presence of stores and inteface signals to MI-STD 1760C interface.
SMS Safety Features
Release of stores only under pilot control or by system under poilot monitoring
Release of weapon under proper flight and release condition.
Prevention of unwanted weapon release or firing on ground flight/approach/taxing
Detection of wrong store configuration on the aircraft.
Proper release sequence achievement.
Waring to Pilot before firing/release of stores of close ground proximity to prevent damage to Pilot or aircraft.
Inadverdent release of store.
Detection of failure to release.
Inhibtion of failed store.
A separate channel for emergency jettison.
Hardward redundancy for firing and essential circuits.
Audio and Visual feedback to Pilot.
Monitoring circuits for firing circuits
Distributed Architecture for essential circuits and system.
Protection against EMI/EMC
Prevention of unnecssary release due to human errors.
Sailent Features of Weapon Integration Facility.
Emulate all store LRU's (PIB,SIB) using PC's and specific Hardware.
Emulates all store Configurations and Loads for Monitoring purpose.
Emulates each stores using PC and specific Hardware.
SMS Architecture timing analysis, Validation, Stressing, Data Latency.
Environment for Integration of store /Weapon.
Hardware in loop including the Stores.
Data Acquisation System for Monitoring Discrete Signal and MUX Data.
Facility Error injection during SMS H/W S/W Integration.
Emulates Aircraft AC/DC Electrical Bus.

 

[Ammyy]

Thnks mate for sharing this all

 

[OrionHunter]

Wow!! Can somebody translate these specs into plain English???

Looks good though! No wonder it took three decades to get it out of the hanger!!

 

[ptltejas]

Wow!! Can somebody translate these specs into plain English???

Looks good though! No wonder it took three decades to get it out of the hanger!!

it would take time i will post all details with photos however plz wsit.

 

[crankthatskunk]

Indians are very keen to present long analysis and boosting to keep their hearts happy on "Indigenous" marvels by their Defence Establishments like DRDO.
Well, LCA's capabilities and reality is exposed in this video.
What is the point of all the boosting and thumping your chests when the reality is it is a abject failure?

 

[Indian-tiger]

India needs to make some major aerodynamic change to lca mk2

 

[ptltejas]

Indians are very keen to present long analysis and boosting to keep their hearts happy on "Indigenous" marvels by their Defence Establishments like DRDO.
Well, LCA's capabilities and reality is exposed in this video.
What is the point of all the boosting and thumping your chests when the reality is it is a abject failure?

I see it fly in aero india 2011 and quite happy with it. Not ptv reports.