Datapatterns India Private Limited West Mambalam, Chennai, Tamil Nadu

VXI stands for VME eXtensions for Instrumentation. It is an open standard first developed by five leading Test and Measurement companies in 1987 to standardise a backplane capable of developing open, interchangeable instrument modules that could be used to build Automatic Test Equipment (ATE). Data Patterns designs and markets a wide range of VXI modules, some of which are listed below. Due to the use of the latest technologies, Data Patterns VXI modules offer the highest IO density available in the industry today. Further enhancements of functional capabilities are achieved by the use of VXI IP carriers and VXI M Module carriers. This extends standard functions available from Data Patterns in these mezzanine architectures to the VXI platform. Data Patterns' VXI modules are utilized in high reliability applications such as Count Down Checkout System for the First and Second Launch Pads at Satish Dhawan Space Centre SHAR operated by Indian Space Research Organisation (ISRO)

The VPX standard defined by ANSIVITA 46.0 is a modern derivative of the older VME standards that is primarily targeted at defence applications, leveraging latest technologies in high speed electronics in order to provide higher performance computing, improved ruggedisation and thermal management capability, higher IO densities and improved maintainability due to better immunity to ESD. Data Patterns has designed and manufactured a broad range of VPX products required for high end Radar Electronic Warfare Image Processing and Sonar applications.

The VME standard is managed by the VME bus International Trade Association, VITA. Embedded computing's most successful bus standard, VME bus, shows no signs of slowing down as it maintains it's position as the industry's de facto standard into the 21st century. The foundation of VME's longevity, namely it's steady rate of technological evolution combined with a commitment to backward compatibility with legacy hardware and software, has been the linchpin of it's popularity for nearly twenty-five years. Today, innovative enhancements to the standard, through the VME Standards Organisation (VSO), continue to improve VME bus' speed, performance and reliability, strengthening it's position as the ideal solution for today's increasingly stringent commercial, industrial and military system requirements (Source: VITA). Data Patterns has implemented a number of standard VME boards, driven by Customer needs for Processor and IO requirements in this platform. Today, standard modules are available covering the needs of: Avionics grade conduction cooled Single Board Computers with 7410 Power PC processors High Reliability Air cooled 755 7410 processor boards Rugged IP Carriers enabling functionality to be provided through IP modules for Digital IO, Serial Communication standards, and other functions Special functions for Applications such as Synchro Resolver Inputs and Outputs

A number of products for space applications are manufactured to customer designs, at our ISRO approved manufacturing facility. Few systems are developed to customer's specifications.

Data Patterns has developed a High performance imaging and monopulse Radar for seeker applications. This is optimized for Land & Sea targets and has X-Band SAR (Synthetic Aperture Radar) based imaging capability. A range of Electro-Optical Seekers are under development.

Material : Aluminum

Application : Industrial Use

Certification : CE Certified

Voltage : 220V

Power Source : Electric

Sound : Beep, Siren

The Scan Mirror Test system is used for validating the linearity of the Scan Mirror Mechanism that is deployed on-board satellites. The system was a custom turnkey project in the electro optics domain. Scan Mirror is swept linearly by a mechanical scanning gimbal and this allows the optical sensor to take large field exposures of the target using a single dimensional array sensor on-board the satellite. The linear mechanical movement is important for achieving an imaging linearity of the satellite, utilizing a complete non contact electro optic technique. The test system utilizes a thermovac compatible 22Mpixel camera and a pulsed laser source to monitor the movement of the scan mirror and thereby compute the movements linearity. Micro radiant level resolution is achieved through pixel level estimation algorithms.

Redundant Strap down Inertial Navigation System (RESINS) checkout test station comprises of cPCI chassis with various functional IO modules like ADC, DAC, DIO, VFC, Relay matrix, MIL 1553, GPIB, Serial communication interfaces and Custom Built System interface adaptor. Software drivers for each functional block are developed in QNX, to perform functional checks of the integrated prime and redundant chains of the satellite launch vehicle’s Navigation system.

A variety of complete Radars and Radar Sub-systems have been implemented by Data Patterns. These include Airborne Central Unit for an Early Warning Radar which has been fully qualified to aircraft LRU standards, Tracking Radars, Phased Array Antenna Components, Wind profile radar, Coastal Surveillance etc.

The Power Module Checkout ATE is developed for testing DC-DC Power modules typically utilized in India's space program. The DC-DC converters are exhaustively tested for all design parameters including supply voltage range, line and load regulation, efficiency, ripple, noise, transient response and so on. Special power sources and loading mechanisms are deployed to enable testing of various types of power modules.

Data Patterns has designed and manufactured Fibre Optic Gyro based Inertial measurement units for under water applications with all algorithms including Kalmann filters and co-ordinate transformations implemented.

A number of Naval products have been designed, qualified and delivered to Naval Shipyards including Garden Reach Shipbuilders & Engineers Ltd (GRSE) and Mazagon Dock Limited (MDL) Some systems have been supplied to Ms. Bharat Electronics Limited. Some Oceonographic systems have been supplied for scientific research purposes.

These are mezzanine modules of approximately the size of a business card (99mm x 45mm). Featuring a 16 or 32 bit wide IO interface and 50 user defined IO pins, these modules are ideal for providing the capability for high density IO. IP carriers provide multiple slots on a single carrier. This allows multiple IP modules to be provided on a single slot in a Compact PCI VME VXI PCI card cage. Industry Pack modules provide some unique advantages in system integration. A unique advantage of the IP concept is the ability to utilise IP modules in multiple hardware architectures. A typical high reliability project is implemented in Compact PCI or VME or VXI architectures. However, the project is likely to need hardware in advance to carry out simulation or software development and so on. In this case, The IP modules can be procured early, and utilised on low cost PC platforms. Subsequently, the projects can transfer the resources to the final platforms. Developed source code can be easily ported to the final environment.

Instrument Test Unit For Advanced Inertial Sensors (INTU) is used for testing and evaluation of Ring Laser Gyro (used in GSLVPSLV launch vehicles), that detects the angular displacement during rotation. The INTU receives displacement signals from the sensor (RLG) to evaluate the sensor characteristics and also generates signals required towards initiating the action of the sensor. This system contributes to the successful launch of many of India's rocket launch vehicles including the Polar and Geostationary Satellite Launches, the Chandrayan and the Mars Orbiter missions.

A range of STANAG 4193 compatible products for airborne and ground application, including transponders, Interrogators, and combined Interrogator & Transponders.

Data Patterns has developed the required expertise to design and maufacture BLDC Motor drivers used in close loop position control applications primarily for actuator control and Thrust vector nozzles and control surface (FINS) for missile and Torpedo applications. Multiaxis gimbals are developed for specific requirements. These products are supported by test systems for electro Hydraulic and Electro mechanical actuator testing

The Generic RF ATE is developed to test the Radar and Radar Subsystems. The ATE is primarily built using an instrumentation control, precision RF routing systems and rack mounted test instruments. Generic RF ATE system enables measurement of parameters of Radar equipment such as Local Oscillators, Waveform Generators, Up and Down Converters, Analog Receivers, Array Group Receiver Units, TR Modules. The ATE is configured to test the Radars upto 18GHz frequency range.

The FPGA Mezzanine Card is used by Data Patterns to implement signal interface with external world compatible FPGAs mounted on the FMC carrier there are primarily used for high speed analog interface for digitization (ADCs) and waveform generation (DACs). This form factor is also utilized for special IO Interfaces such as various avionic protocols and buses. FMC IO signals may be routed via front panel connectors or through Mezzanine connectors that route the signal back to the carrier board for routing through rear IO of the Chassis. The system interface is designed for routing to FPGAs using a VITA 57 0.05 Pitch Terminal Array Assembly. Signal Conditioner Card (SC) Data Patterns utilize a custom form factor connector suitable for use as a plugin modules on carriers in cPCI, VME or VPX standards specially designed for slow speed precision signals. Switched Mezzanine Card (XMC) XMC switched Mezzanine Card form factor is used for providing cross-platform functional solutions usable on cPCI, VME and VPX systems, primarily focused on PCI Express based interface. The XMC is derived from the PMC form factor. A very broad range of IO functionality is provided through XMC modules.

Data Patterns utilizes Fibre Optic Communication for high speed data transfer requirements. Protocols such as Serial FPDP, Aurora, PCI Express, Gigabit Ethernet are implemented on Fibre Optic Medium. Solutions using DWDM and EDFA components for high density fiber optic communications solutions are implemented

Data Patterns has developed a line up of State of the Art Integrated solutions for spectrum monitoring, wideband searching, ECM & ESM, direction finding for Airborne and Ground Mobile Applications standard Products include VHFUHF Search Receiver, HF Search Receiver, Monitoring Receiver & Jammers.

These products are implemented through modern high speed digitizers and digital to analog converters and are backed by FPGA based processing that implements baseband tuning and high speed I&Q vector generation algorithms. These find application in real-time signal processing, electronic waveform generation, digital tuners, and communication products.

The Digital Flight Control Computer is a Quadruple Redundant Flight Control Computer designed by DRDO and ADE and manufactured by Bharat Electronics Limited. Data Patterns has designed and manufactured the Automated Test Equipment required for the validation of this DFCC. Segregated into an Analog Test System and Digital Test System, relevant boards can be plugged in on the front of the ATE and tested for full functional performance. Specialised adaptors enable probing of the backplane signals and also carry out measurements on the board by manual probing for debugging requirements.

Modules in compact PCI from Data Patterns are available for Data Acquisition and Control, Simulation, Communication Automatic test equipment, Rugged systems, Fail-safe systems, Computer controlled logic controls, Plant automation and similar requirements. Other IO functions available from our IP and Mezzanine Module families can be directly integrated into our cPCI systems. Data Patterns has also pioneered cPCI derivatives such as 9U High Voltage systems, Multiple backplane support with Hot Standby Switchover capabilities. Continuous innovation enables MMI options such as CRT & LCD displays, Keyboards, Pointing devices, Finger print security devices and so on.

The Second Launch Pad Count Down system is implemented using VXI hardware designed by Data Patterns specific to the application requirements, featuring a redundant system handling upto 14000 IO points. The ATE monitors various aspects of the launch vehicle during this count down phase and assists in automating launch process. This product has been very reliable in operation since 2001. The ATE consists of precision analog input signal conditioners and digitizers and discrete as well as relay logic. One of the specialised modules used for failsafe automation is an analog comparator which is programmable to carry out safety monitoring, independent of the software for failsafe operation purposes. This world class system was implemented by Data Patterns against strong competition and proved it's reliability over many launches of the PSLV and GSLV from the Launch Pad.

Data Patterns has standard communication products for most military protocols such as MIL-STD-1553B, ARINC-429, ARINC-708, RS422. A spread spectrum modem is available for both terrestrial and satellite communication requirements. These products are designed primarily for on-board interfaces in avionic systems and also for automatic test equipment requirements.