SES Solid State Data Recorder - Cockpit Voice Recorder

The S3DR product family is a low cost, high performance, rugged solution to the processing and data recording needs of an environmentally challenging embedded system, such as those found in aerospace, defence, naval and safety-related or high performance industrial applications.

The S3DR product family is designed with flexibility and expandability in mind. S3DR-CVR (Cockpit Voice Recorder) is a specialisation of the more generic product family providing a voice recording solution where space and mass are at a premium. The unit features a high-speed recording function that is able to write data to a removable solid state memory module from multiple voice interfaces at speeds up to 60 Mbits (7.5 Mbytes) per second.

 

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 SES Solid State Data Recorder - Cockpit Voice Recorder: Features

S3DR-CVR

• Size: 115mm(w) x 85mm(h) x 28mm(d) (excluding connectors)
• Weight: <0.5kg
• Recording Memory Media: PCMCIA Card
• Recording Time: 30min, 120min, 240min (by memory selection)
• Number of Inputs: 2x Intercom, 1x Area Microphone, 1x Isolated RS232 Data Channel
• Sample Frequency: 40.4 kHz per channel
• Frequency Range: 16 kHz
• Power Requirements: 28V, 3.5W
• NATO Stock Number: 5965-99-7245491

Area Microphone

• Size: 40mm dia. x 27mm (h)
• Weight: <40g
• NATO Stock Number: 5965-99-7787548

Rugged Memory

• Construction facilitates data recovery by accident investigators even after severe damage
• Shock: 2000G any axis or direction - Vibration: 14G (random), 30G peak to peak (sine)
• Ingress: IP68 > 10m salt water immersion
• NATO Stock Number: 5998-99-5986594

Special Tool (Tamper-Proof Screws)

• NATO Stock Number: 5120-99-2501742

Environmental Specification

• Operating Temperature: -40ºC to 85ºC
• Storage Temperature: -55ºC to 90ºC
• Humidity: Tested to Mil-Std 810F
• EMC: Tested to Def Stan 59-41
• Vibration: Tested to Mil-Std 810F, Method 514.5
• Shock Acceleration: 40g, 11m/s, terminal peak sawtooth. 3 shocks in all axes and polarities (18 shocks)
• Altitude: up to 52,500ft

 

 

SES Solid State Data Recorder - Cockpit Voice Recorder: Interfaces

Connectors and Power

The SES Cockpit Voice Recorder can be powered from standard aircraft power (28V) and shall typically use 4W. The unit will also operate with a supply of as low as 14V and as high as 32V. The connectors on the Cockpit Voice Recorder and screw type connectors. These allow the user to easily install and remove the unit on demand but are secure enough not to work there way loose.

Serial Data Channel

One Isolated RS232 Data Port can be optionally provided for the recording of GPS or other synchronised data.

Tamperproof Tools

A tamperproof tool is provided with the SES S3DR-CVR to allow the door of the recorder to be opened and the memory card can then be removed.

Mounting Bracket

A mounting bracket can be supplied with the SES Cockpit Voice Recorder to allow the unit to be fitted in a number of different locations. The mounting bracket can be a standard U or L shape. Other shape mounting brackets can be supplied on request

 

SES Solid State Data Recorder - Compact Extended: Memory

The S3DR-CVR platform offers several data recording media systems, including:

• Solid State Removable Memory Module
  
  
• S3DR-CVR utilises high speed, high capacity PCMCIA ATA flash, providing low-cost high-performance removable media, with the added advantage that they can be read using a standard laptop, or a special high-speed reader.SES have qualified a number of extended performance PCMCIA ATA flash cards which can be used with S3DR-CVR, but the recommended solution is to use SES own design of solid state removable memory modules. These have extended environmental performance and functionality, which when used in conjunction with an SES recorder, provide optimal performance.
  
  
• Performance:
  • Data Transfer Rates: Sustained read/write rate: 60 MBits per second (min)
• Enhanced Functionality:
  • Sanitise (Secure) Erase of all data on media using DoD approved algorithms
  • Purge (Destructive) Erase of media
  • Data security (blocking unauthorised access)
• Reliability:
  • MTBF: >4,000,000 power-on hours
  • Error Rate: less than 1 bit in error in 1014bits read
  • ECC: High reliability based on internal Error Correcting Code function
• Ruggedness:
  • Shock: Operating or non-operating 2000G, any axis or direction
  • Vibration: Operating or non-operating 30G peak to peak (sine), 10-2000Hz, any axis or direction, 14G (random)
  • Temperature: -40°C to 85°C (operating), -40°C to 100°C (non operating)
  • Humidity: >95% condensing ±4% to Mil-Std-810F Method 507
  • Altitude: 80,000ft
  • Water/Dust Ingress: Fully Sealed to IP68
  • Water Immersion Depth (non operating): 10m
  • Case Strength: Bend <4mm at 100N, Torsion 5NM <3°
  • Connector Durability: Plug Cycles 10,000 insertions
    
    
    

SES Multi-Channel Video and Data Recorder: Support

SES provide a number of optional support items to maximise the potential of the S3DR-MVDR platform, including:

• REVEAL

REVEAL is a partner product to the S3DR-MVDR data recorder. It allows the user to extract and manipulate data from a removable memory cartridge and prepare the cartridge for reuse by the S3DR-MVDR. REVEAL is an application for Microsoft Windows that provides a wealth of features for extracting, interpreting, visualising and analysing data captured using an SES data recorder. Key features of the tool include:

• Convert data to a variety of formats to allow analysis with domain specific tools
• Interpret data to demultiplex or decommutate a data stream into its constituent parameters
• Archive data to hard disk, CD or DVD for later analysis or long term storage
• Visualisation of data to allow visual analysis within REVEAL using a framework that supports real-time and fast-time playback where suitable hardware is available
• Declassification of S3DR data storage media
• Annotation of recorded data with supplementary data, for example Form 725

The architecture of the application allows for easy customisation of the application to suit bespoke requirements, for example introduction of a new component to output data in a new format. Alternatively, the underlying components can be reused to provide a bespoke application to automate the extraction and processing of S3DR data cartridges.

Learn more about REVEAL here.