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TWT Cooling System

Travelling Wave Tube (TWT) is a microwave tube used in RADAR. It becomes enormously hot during its operation. Water or air cooling is required to extract the heat dessipated .

The primary objective of the TWT Cooling system is to extract the heat dessipated by the TWT and to transfer it into the ambient air by circulating water passed through an heat exchanger.

The control unit scans, monitors, displays the values of various parameters of the cooling system and accordingly controls the motor, fan and heater. It also indicates if any parameter crosses the limits and gives out shut down signal.

HMI LCD Panel

Presently the VFD drives are provided with two push buttons , one to reset the drive and other to get the status of the drive. The VFD drive output on RS232C port is connected to a special printer which prints  the output with date and time stamped. The disadvantage of existing system is that the drive output will not be accepted by any other printers and also manual intervention is required to get the status of the drive.

HMI LCD Panels are designed to receive signals from VFD drives on RS232C port .

The received data is transmitted on to another RS232C port (Console port) which is routed to a remote PC, where it is stored and presented in various formats.

 The data is also routed to the printer ,  stored in internal Flash Memory  and displayed on the 320x240 pixels LCD  after date and time stamping.  User can view a particular page of information available in the flash through keypad and send it to the printer on giving a print command.

Another important function done by HMI LCD Panel is to automatically get the drive status at regular intervals of time by means of closing a relay contact parallely wired to the existing push button.

Control & Distribution Panel for WLR Application:

This panel consists of various electrical switching circuitry, distributing the load from the main source to other electrical devices which is used in off-road vehicle mounted applications.

The unique feature of this panel is that it controls two different types of electrical sources operating at 415V/50hz and 200V/400Hz.

The panel also has indicating lamps to indicate the status of the electrical devices. The panel is provided with EM/EMC gaskets, so that the operation of the switch gears present inside the panel will not affect the operation of other devices outside the panel.

The panel is provided with state of the art indicators to indicate various electrical parameters.

Data Acquisition from Legacy System

The Legacy Systems like material composition analyser, weighing systems or communication systems designed decades ago had only interface to a printer for periodic or event driven printouts. With the latest networking and web based technologies in place it has become a necessity to get the data from such legacy systems also and integrate.

Data Care Group has taken up several such projects to get interfaced with any kind of printer port, the legacy systems have through a dedicated hardware and make it compatible to PC comport. Thus, available data is captured on to the PC through application software developed in house. The data is also presented to the user in various formats through front-end software package. The history of data is also maintained for future retrieval purposes.

Transcription of Magnetic Tapes

AMSE Airborne Mineral Survey Division of Geological Survey of India (GSI) had lots of data recorded on to old Magnetic Tapes while doing Aerial Survey with the help of on board instruments which were compatible to VAX systems on which lot of software was also available to analyse this data. For obvious reasons the VAX systems had to be scrapped which meant the Data on Magnetic Tape has to be brought on to a medium compatible to PC [DAT Drive].

Data Care Group successfully completed the task of transcribing the data available on magnetic tapes [about 1500 tapes] into DAT Drives.

Special hardware and software was deployed to implement the same.

Audio System for Combat Flight Simulator

The pilots of combat Aircrafts are trained using Flight simulators. To create a real environment there is a need to establish voice link among trainee, instructors, master controller etc., Along with the voice other external sounda like Engine sound etc., have to be mixed to bring out real environment.

The Audio system has following features.

1.      Six voice channels for intercom.

2.      Audio mixer for Aural  cue wave files generated by a computer.

3.      External  engine sound, crackling, hissing  song etc., sounds simulation.

4.      G-Dim effect for the trainees.

5.      Recording output for sound recoding to be replayed in debriefing sessions.

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