System Controls Technology Solutions Pvt. Ltd. Kasturi Nagar, Bangalore, Karnataka

  The Yaw Compensator for Aerostat applications for LRDE, proposed by System Controls is based on digital servo system and associated electronics with suitable mechanical construction for mounting Radar Scanner Assembly of BFSR-SR Radar with Patch Array Antenna, to provide stable and accurate attitude/ Yaw compensated control system. The Radar Antenna Assembly suspended from Aerostat is subjected to twists/ sway and motions in the space due to surrounding wind and random Aerostat movements etc. The Yaw Compensator assembly is positioned in between the Aerostat and the Radar Scanner/Antenna to provide the requisite compensation or corrections to the Radar antenna in Azimuth axis, for movements or sway in pitch and roll axes. This correction/Compensation is required to enable the Antenna to be always positioned in the direction of target unaffected by external forces.  

  The system provides programmable 40-channel signal generator for loading and vibration analysis of aircraft wing.  Used in conjunction with shaker system the generator has the capability to provide single or multichannel sinusoidal, triangular or square waveform in a programmable profile. The frequency can be swept under program control.  Online data and display facility are provided.

    Steerable Antenna Pedestal System Controls developed for avionics preparation vehicle consists of Azimuth Drive, Elevation System and controllers for both axis. Azimuth is a continuously rotating system with zero backslash Harmonic Drive, motor and encoder. Elevation drive for the required angle is actuated through a linear actuator. Slip rings and rotary joints are provided to terminate the RF and control signals for the motors. Both axis are controlled through RS232 communication as per user-defined protocol.A portable rate table is ideally suited for the field calibration of gyroscopes, accelerometers and other precision sensors, used in aeronautical and aerospace measurements. The Portable Rate Table offered uses a high-resolution incremental encoder (with a resolution of 0.0018 deg) mounted directly on the shaft. The speed is controlled with a fast response control loop using a Digital high power drive. A RISC processor provides for command entries through a keyboard and display the instantaneous rate once in two seconds. Facility is also provided for control of rate using external analog signals. The table provided diameter of 250 mm and holes have been provided as below for fixing the external device under test.  

  Project LORDS is a Laser Support System meant for diffusing an explosive hazard of an object of 6cm x 6cm size at a range of 30m to 250m. This is a vehicle mounted System which enables deployment at any required sites. The execution of this Project encompasses a clear study and understanding of multiple disciplines of engineering like Electronics, Electrical, Mechanical, Thermal, Structural, Automobile, Electro-optical and Manufacturing. Also, since the System has to be qualified to meet defence requirements, an elaborate quality plan was required to be implemented right from selectionof components to the realization of the fully integrated System. The Laser Support System meets EMI/EMC requirements as per MIL.461E and environmental requirements as per JSS 55555 as applicable to vehicle mounted outdoor systems. Laser Optics Module (LOM) Laser Pointing System (LPS) Thermal Management Unit (TMU) Power Conditioning System (PCS) Command and Control System (CCS) Transportable Platform (TP)

  SCTSPL has designed the Scanner, for BFSR-SR, which is the hub of operation of the antenna in Azimuth and Elevation. The Scanner is designed to achieve optimization through low power consumption, lesser weight and high accuracy.Closed loop digital control system with software programmable features is available and various features are provided for reading the position, velocity and setting the velocity. The development unit was designed by LRDE and commercialized by BEL Bangalore and 1700 Nos. have been inducted into the army within the short span of 03 years.

Weight : Less than 7 Kg.

Accuracy : 0.5º

Power Supply : 24 VDC

Power Consumption : Less than 10 Watts

  The rugged mil qualified Dual Axes Post/ T-bar type Pedestal in which the pedestal mounting supports the director head high on the platform. Based on digital servo amplifiers it can position the director head very precisely.   It has accurate angular motion control system. It gives required azimuth and elevation motion for the Electro optical payloads like CCD/IR Camera, Thermal Imagers and LRF mounted on the top of suitable platform.

  The Rate Table is a PC based programmable rate-of-turn table using sophisticated direct drive servo loop incorporating state of the art high accuracy rotary and motion simulation test features. The functions and configuration of the digital controller are fully programmable by the operator for convenience in setting the test profiles. These functional capabilities have been provided using a PC interface, which has user-friendly programs. The system is offered with a ruggedised panel incorporating the electrical control sub-system, the supervisory PC, the solid-state intelligent drive, the regulated power supply and other necessary accessories. The table houses 96 slip rings for interface to supply and signals of the test system.  

The Programmable PCM Encoder Module is of PMC Form Factor, Conduction Cooled and will meet Airborne Military Ruggedization Standards. The PCM Encoder module is a PCI module with the IEEE 1386 PMC (PCI mezzanine card) form factor. The Module Incorporates The Electronics To: Get configure the Frame format set Accept the PCI burst data To format the input data with the Frame Sync Pattern, Frame ID, RTC Output the data with the programmed data rate Analog form with the pre-modulation filter response of 30 dB down noise. This Data Is Available In The Following Type: Non Return to Zero Level Non Return to Zero Mark Non Return to Zero Space Bi-phase Level Bi-phase Mark Bi-phase Space Digital form compatible with TTL signal levels The Module Is Complied With The Following Standards: MIL-STD-461C : EMI/EMC standard IEEE 1386.1(2001): PMC Standard IEEE 1386(2001) : CMC Standard VITA 20-2001 : Conduction cooling specification DOD-STD-2167A : Military Standard for Software Development IRIG 106 : PCM Telemetry Standard PCI r 2.2 : Specification for PCI

  Data Acquisition involves sampling and it is mandatory that frequencies higher than half the sampling frequency be removed. This ensures that there will be no errors due to aliasing in the acquired data. Antialiasing filters hence form an essential part in data acquisition systems. In addition, mains frequency interference often poses problems in acquisition of low-level signals. System Controls has developed a multichannel antialiasing filter with cut-off frequency of 40/80 Hz and rejection at 50 Hz. The filter has Butterworth low pass characteristics and provides an attenuation rate of 120 dB per decade.

  SCTSPL has developed the Radar Pedestals for Low Level Lightweight Radar (Bharani) & 3D Low Level Light weight Radar (Aslesha) for LRDE, Bangalore to meet airspace surveillance in mountainous areas to provide airspace awareness, including intruding objects like aircraft , helicopters and UAV for Indian Army and Airforce.   They are designed to rotate 360 degrees continuously with payloads weighing up to 75 kilograms.  The Pedestal has slip ring and RF rotary joint for signal and power transfer between stator and the payload. While BHARANI Radar is for Indian Army, the ASLESHA is meant for Indian Airforce.   These lightweight radar pedestals typically meet the operational requirements like transportation, quick deployment and decamps, low energy consumption perform in touch weather conditions including high-speed winds.

Weight : Less Than 25Kg.

Power Supply : 24VDC

Power Consumption : Less than 500 Watts Payload 75 KgAzimuth. Continuous Torque 120Nm at 20 rpm. Angular Accuracy +0.10 Weight Less Than 30Kg. Readout Accura

Weight : Less Than 30Kg.

Power Supply : 24VDC

Power Consumption : Less than 400 Watts

  A customized Laser Optical Module has been designed and realized for LASTEC, Delhi. The LOM, which is an important module for Project LORDS, is a power house to generate high power solid state meant for focusing high power on a target. The unit consists of Diode Array Stacks, 2-axis Mirror Mount, Beam Director Lens Assembly, which are housed in rugged opto-mechanical housing. The Laser Optics Module(lom) Assembly Consists Of : Housing for diode array stacks Precious 2 axis mirrormount with high accuracy in arc seconds Beam director lens assembly Opto-mechanical housing to enclose all the optical assemblies that must be hermetically sealed

The Laser Imaging System is a laser based active imaging system with additional feature of coordinate estimation of the target. The retro-reflected laser illuminated beam from the target optics will be acquired by the front end optics of the receiver and will be read by the image sensor. The video output generated from the sensor will be interfaced to a micro display with ocular and simultaneously to an external display. The final image and the target coordinates will be viewed through a monocular as well as a five inch external display, at the user’s discretion. The LASER retro-reflected spot is detected and the exact location of the reflected spot is estimated through LRF, DMC and GPS readings. All the range / coordinate information will be fused together to evaluate the target coordinates and will be displayed on the display screens. The system will have variable collimation for the laser transmitter, slaved with real time FOV of the Imaging Camera.  

System controls has established expertise in design and development Electro Optic Systems. The dedicated set up include manufacturing, test facilities to produce ruggedized field proven systems with hi-stabilization and accuracy. We are having experienced in system design, thermal engineering and integration of EO systems.Electro Optical Systems operates in the aerospace & defense markets and provides electro optical tracking system. The Company specializes in aerospace based on the use of its developed instruments & sensors to detect, track, classify & characterize objects in space. These products are suitable for military and commercial space applications. Our products are generally used for conjunction with other electronic equipments or solid state devices. Electro optics applications generally benefit from our design CAD and optical softwares to ensure optimum performance. Miniaturisation is a key feature in the evolution of Electro Optic Systems. Our in-house dedicated team provides innovative specialist design solutions, whilst our dedicated global manufacturing sites ensure we have a local presence on a global scale.

  Designed, Developed and Manufactured to meet the requirement of Landing / Search Light for low speed air-borne platform Helicopter. Precision rugged steel gear trains are housed in a compact package for retraction, extension and rotation. Powered by heavy duty DC motors through highly reliable slip-ring mechanism to withstand wind loads. Limit switches are used to cut OFF / ON the power supply as required. DFLL can be rotated through 360 degrees with high power visible / Infrared Light selected ON in the extended position. Highlights: Two Axes Retrction/Extension/Rotation Landing/Serch/Rescue Visible and IR Spectrum High Intensity Light Compact/Rugged/Light weight All Weather resistant Number Of Axes: Extension/Retraction Angle2 Axes Angle 0° to 120°

System Controls offers a complete range of Test Benches for Aircraft components, measurement and calibration applications in the industry where the tasks are fulfilled in a laboratory. We strongly believe that each clients is unique, with unique applications, unique challenges & which require a unique solutions. Each Test Bench is also unique, dedicated to your requirements & expectations with unrivalled quality, setting the benchmark in the market of test, measurement and calibration test benches.Test benches refer to an environment in which the product under development is tested using software and hardware tools. The suite of testing tools is often designed specifically for product under test. The software may need to be modified slightly in some cases to work with testbench but careful coding can ensure that the changes can be undone easily and without introducing bugs. We offer different types of test benches like Rate Table, Airdata Test System etc. Our company is a prominent company that offers Test Benches which is of top class quality. Our products are basically used in testing for Industrial Product Design. Our testing benches have extremely simple features such that even a layman can use it with the same ease as an expert.

  SCTSPL has offered a lightweight and compact size Airborne Dual Axis Positioner, ideal for mounting in Aircraft or Chopper for airborne/ maritime surveillance.  It is designed to operate with payloads weighing up to 10 kilograms. The Dual Axes Airborne Positioner is designed and built with new technology for efficiency, simplicity, cost effectiveness and ease of maintenance. Powerful BLDC motors through proper electronic circuits give a controlled programmable, rotation, position and provide the rotation and elevation to the Airborne Dual Axis Positioner. The Positioner has a hollow shaft at slew center for routing of cables between rotating and non-rotating portion.It comes with suitable safety features like limit switches,  emergency  stop, mechanically and electrically operated Electromagnetic brakes, drive power cutoff  for maintenance etc., The System comes with ON-LINE and OFF-LINE diagnostics facility in addition to the Power on self-test and desktop based Test software  for stand-alone  testing.

Power Supply : 28 VDC

Power Consumption : < 500 W

  This System has been designed and developed for Image Sensing payloads, the customer being LASTEC, a premier DRDO Establishment in Delhi and has successfully met stringent defence specifications. The Pan & Tilt Unit with AVT capabilities is used for tracking an object through video camera.   It is a Tripod mounted system being used for static applications.   The Imaging sensors are UNIQ Camera, FUJINON Zoom Lens.   It has a Digital Video Recorder.   The system can be operated in Remote Control mode using a remote Control unit.   The Controller is 19” rack mountable with LCD Monitor.  

  AOA Vanes are used to measure the angle of attack of an aircraft. An angular sensor of the RVDT senses the angular position of the vane with respect to the fuselage reference line. The angle of attack calibrator provides for calibration of the RVDT’s. The angular position of the vane can be set to any angle from –45 deg to +45 deg and this angle is sensed by a precision encoder, which has an accuracy of 0.03 deg The relative outputs of the four RVDT’s are displayed directly in digital read outs with a resolution of 0.1deg. Direct calibration of the AOA is thus rendered extremely simple.

  The dual Axes Antenna Tracking pedestal can give precise dynamic motion in both Azimuth and Elevation Axes. It will position the antenna towards another antenna, which is the different geographical location. It incorporates GPS and North seeker to automatically align with remote antenna. The product is a ruggedized for mounting on mobile trucks with telescope mast upto 25 meters.

Range : 0°to +/- 180° in Azimuth,15°to -15°in Elevation

Accuracy : 0.10

Resolution : 0.050

Power Consumption : Less Than 40 Watts

  The Antenna Stabilization Unit (ASU) is meant for positioning and stabilizing the payload. The payload consists of RF front end and antenna. In order to maintain the Line of Sight (LOS) of the antenna towards the target, it is necessary to steer the antenna to the required angular position both Azimuth and Elevation against aircraft Yaw and Roll and the developed ASU performs this task. It consists of an Antenna, Antenna Control Unit, and a host Computer. The ASU is TMS based DSP system capable of performing closed loop position control, motor control and monitoring functions and should point the antenna towards the designated area of interest using on-board INS data. The host computer issues mode selection command along with the relevant command data to the ACU. Applications: Air-borne Radar Pedetals Surveillance Systems Tracking Systems Gimbal

Weight : < 24 Kg

Supply Voltage : 28 V

Power : Peak : < 100 W, Average : <50 W

  Actuator Test System consists of actuator test electronics, test rig and data acquisition / analysis system. This system acquires various data from the feed back system and the control signals of the actuator and these are used for further analysis of the system. System Controls have provided effective solution for data acquisition and analysis during actuator dynamic. This is ground test equipment providing different control signals to the actuator. Safety features are provided to monitor the threshold levels of various parameters and render protection against malfunctioning.