DIRIS - Industrial Quality Audio Video



V-Recs - Video Recorder Module

Blockdiagramm of V-Recs

Key Features

  • 2 selectable video inputs: (PAL or NTSC, auto-detect):
    A. CVBS
    B. S-Video
  • 2 recording modes
    • single image (JPEG)
    • video clip (M-JPEG or MPEG-4)
  • 3 storage options:
    • 1, 2, 4 or 8 Gbytes internal flash memory (hardware option)
    • MMC/SD Card slot (external)
    • USB-Stick as MSC-device (external) (Auto detection of memory card as preferred memory)
  • 2 optional parallel video outputs show source video or playback of recorded/stored files:
    A. CVBS
    B. S-Video
  • different network options for file transfer and device control
    • UART
    • SPI
    • TWI
    • Ethernet (hardware option)
    • USB MSC (hardware option, restricted control)
  • different user interface options
    • none (remote control only)
    • LEDs, display or OSD on video output
    • buttons, rotary position transducer or touch sensitive surface
  • Different options for configuration and control:
    • menu in output screen
    • local user interface on integrated display
    • live configuration via network
    • configuration file upload
  • Master mode for configuration:
    • select configuration options visible to end customer
    • change all text elements (this includes adaptation to different languages)
  • Integrated real time clock (RTC)
    Automatic filenames include time stamp
  • Configurable overlay elements
    • date/time
    • bit map graphics, ie. logo
    • fixed text
  • shock proof product assembly
  • Industrial temperature grade (option)
    Note: slighly reduced video performance
  • PC-Software for generating configuration files
    • all text elements editable by customer to allow individual wording and multiple language support
    • all options may be defined by customer as not visible to end user
  • Option: Streaming of audio/video data over different interfaces to an external device, eg. PC:
    • Ethernet
    • UART
    • USB
  • Small outline CPU module
    (eg. "V-Recs M" at 40*75 mm2)
  • Evaluation System for fast getting-started, includes IO-Module with connectors for power, video in/output and user interface serves as referencs for customer's product integration
  • IO-Module serves as example for customer's product integration
  • Low Power Consumption: approx. 1.5 W (depending on optional components)
  • User defined assembly options for mass production
  • Branding for customer products possible (program icon, start screen on monitor...)

Variants of V-Recs

This table compares the features and options of the mayor V-Recs variants.

Three different Variants of "V-Recs" are available. Major differences are shown in the following table ("[X]" means optional):

Feature V-Recs S V-Recs M V-Recs L
Size (mm x mm) 32 x 65 40 x 75 50 x 80
Power consumption, ca. [??? tbd.] 1.0..1.5W 1.5..2.0W 2.5..3.5W
Video Input (CVBS/S-Video) X X X
Video Output (CVBS/S-Video) -- [X] [X]
JPG Image Capture: 720 x 576/480 X X X
M-JPEG Video Recording upto 720 x 576/480 @ 25/30 fps¹ (full frame rate needs NANDFlash) [X] [X] [X]
MPEG4 AVC Video Recording upto 720 x 576/480 @ 12,5/15 fps¹ [X] [X] --
MPEG4 AVC Video Recording upto 720 x 576/480 @ 25/30 fps¹ -- -- [X]
Stereo Audio Input and Output -- [X] [X]
MMC/SD-Card (external) for Video/Audio Storage X X X
NAND Flash (2, 4 or 8 GB) for Video/Audio Storage [X] [X] [X]
GPIO-Control (Buttons, LED) X X X
USB memory stick for Video/Audio Storage [X] [X] [X]
Support for External LCD [X] [X] [X]
OSD-Menü on Video-Output during play-back and control operation -- X X
OSD-Menü and live overlay elements on Video-Output during record and idle operation (overlay to live video input) -- -- X
UART control and data transfer X X X
UART streaming (proprietary) X X X
USB device ("V-Recs" acts as MSC storaged device for connected PC) [X] [X] [X]
Ethernet control and data transfer -- [X] [X]
Ethernet Streaming (RTSP like) -- [X] [X]

--- : Feature not available
[X] : Feature available as option
 X  : standard feature

¹ Industrial grade systems may only achieve lower frame rates at full resolution, due to lower maximum clock rate.

Also "V-Recs M+" ist available, being identical to "V-Recs M" but allows live overlay elements on video output during idle and record operation.

V-Recs S

Figure 1: Block Diagram "V-Recs S"

"V-Recs S" is a reduced version of "V-Recs M". It does not provide the options Video Output, Audio and Ethernet.

V-Recs M

The block diagram of "V-Recs M" ("M" = medium, i.e. single core) is shown on top of this site. It is the reference implementation of "V-Recs".

The CPU-Module has a size of 40 mm x 75 mm.

V-Recs M+

The more powerful variant of "V-Recs M"

  • Live-Overlay on video output
  • MPEG4 AVC (H.264) recording at 25/30 fps

The CPU module has a size of 42 mm x 75 mm.
(almost pin compatible to "V-Recs M")

V-Recs L

The block diagram of "V-Recs L" ("L" = large, i.e. dual core,) is almost identical to "V-Recs M". The mayor difference to "V-Recs M" it the capability to record MPEG-4 video file in D1 quality (restricted to AVC).

"V-Recs L" is also capable to run the video output on a separate port enabling the following advantages

  • connect monitors with different resolution than the connected camera
  • time code, text and grafik overlay on life image
  • OSD menu control on live image

V-Recs LH

A block diagram of "V-Recs LH" ("L" = large, i.e. dual core, "H" = host) is shown in Figure 2.

Figure 2: Block Diagram V-Recs LH

Externally "V-Recs LH" is similar to "V-Recs M". Instead of USB it provided a flexible parallel host port (16 bit) to provide a high speed connection to a host processor. As "V-Recs L" it the capable to record MPEG-4 video file in D1 quality.

Evaluation and Reference System

For all Variants of V-Recs an evaluation system is provided based on an Base Board of approx. Europe Card size (160 mm x 100 mm). This evaluation system acts a reference design on how to integrate V-Recs into your own product.

The Evaluation Kit consist of the following components:

  1. Evaluation-Box:
    • "V-Recs" CPU-Module
    • Base Board, incl. power regulator for all supported sources and standard connectors to all interfaces
  2. External power supply
  3. Camera (PAL)
  4. MMC or SD-Card
  5. Robust Suitcase
  6. Software
  7. User's Manual incl. Schematic and Layout of Base Board

Dieses "Evaluation Kit" wird als echtes "Plug'n'Play"-System in einem stabilen Alu-Koffer geliefert. Einfach den Koffer öffnen, Netzteil in die Steckdose stecken und schon können Sie auf Knopfdruck Bilder und Videos aufzeichnen.

Das Basis-Board dient als Referenzdesign für die Integration von V-Recs in eigene Produkte. Dabei ist dient das Evaluation-Kit immer wieder als Rückzugssystem, um z.B. nach schwierigen Tests die weiterhin korrekte Funktion des "V-Recs" CPU-Moduls zu verifizieren.

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Für weitere Informationen zum V-Recs nehmen Sie bitte direkt Kontakt mit uns auf. Vielen Dank.

letzte Aktualisierung: 23.07.2010 © by Optimists Consulting GmbH