SACHA : systèmes d'acquisition embarqué pour environnements difficiles

 

 

La gamme SACHA est destinée aux ingénieurs d'essais qui ont à  tester des équipements dans des conditions très sévères : systèmes aéronautiques, véhicules blindés, charges aéroportées, crash tests.

Les coffrets SACHA offrent une structure modulaire multi slots avec laquelle l'utilisateur peut réaliser toute sorte de combinaison :

  • Acquisitions de signaux analogiques :: tensions, jauges de contraintes, températures, accéléromètres, potentiomètres, avec ou sans filtrage
  • Acquisitions de bus numériques  : voies séries, DIGIBUS, MIL STD1553, ARINC, CAN, ou bus spécifiques sur demande grâce à  nos cartes FPGA




Les données acquises peuvent être stockées en local et/ou transmises en temps réel via Ethernet ou une sortie PCM.

SACHA peut également servir d'enregistreur pour des coffrets externes tels que nos boitiers de compression vidéo ou des équipements tiers.

SACHA dispose en option d'une batterie qui lui permet de se protéger d'éventuelles pertes de l'alimentation bord ou même de fonctionner de façon totalement autonome durant plusieurs heures.

 

 
 

 

Sacha basic system


SACHA

SACHA System base structure

 

Processor Atom Tunnel Creek E660T 1.3GHz,

 

RAM : 1 GB, local SSD storage : 2 GB for system, 4GB data

 

1xGb Ethernet, PCM : 1x input, 2 output RS422 interface
Serial : 1 x RS232 (maintenance), 1 x RS422, CANbus Audio

 

Time synch. : IRIG B input + ieee1588

 

Digital input (trigger) : 2 - Digital outputs : 3

 

Power input : 20-36 V, 50W max

 

Basic system power consumption :

 

Versions: 3, 6, 8 slots. 2 slots used by CPU and power supply

 

Slots :

3

6

8

 

Extension slots :

1

4

6

 

Dim : 88 (h) x 138(d)x

70(mm)

122 (mm)

157 (mm)

 

Weight (kg) :

2.3

3

3.5

 


Temp : operating -40..+ 75°C. not operating -55..+ 100°C

 

Humidity : 90% not condensing

 

Vibration : sinus 20-2000 Hz 5g, random 10-2000 Hz 6g rms

 

Shocks : 50g 6ms

 

Pressure : 250-1100 mbar

 

Connectors : DMC

 

 


BAT144

Battery option for SACHA

 

14V, 4.8 Ah Lithium-ion technology

 

70% capacity after 500 cycles

 

Load power requirement : 20-36Vdc 40W, 1.5A

 

Load duration : 3-4 hours

 

Temp. Load : -20..+60, Discharge : -20..+ 70°C

 

Dim : 5.5 (w) x 7.4 (h) x 13.9 (d)

 

Weight : 0.9 kg

 

 

CAP144

High capacity power storage option for SACHA

 

Maintain power supply during short power losses

 

Max power loss duration : 5 to 10s (depend on system configuration)

 

 

 

Analog acquisition boards


 

 

 

 

 

 

 

 

 

 

 

 

 

EIBN

24 differential analog inputs suitable for low voltage, potentiometer or temperature measures

 

Programmable gain : 1, 2, 4.. up to 128 minor drift amplifier

 

Input levels from +20mV to +2.5V FS

 

Conditioning linearization of PT100, 3 wire connection

 

Cold junction compensation for thermocouples J, K, T, R, S, E, PLII with internal or external silicium

 

Open loop detection

 

5V energizing for potentiometer acquisition

 

4th order Butterworth low pass filter 1.5 to 22 KHz

 

16 bit simultaneous sampling, up to 200 Ks per second and per channel

 

 

EIHN

16 high common mode voltage differential analog inputs

 

Programmable gain : 1, 2, 4, 8

 

Input levels from +5V to +40 FS

 

Common mode voltage range +250V (Zin = 500 KOhms)

 

CMRR 90dB from -40 to + 80°C

 

16 bit simultaneous sampling up to 200 Ks/ch

 

EIGP

8 general purpose analog inputs : accelerometers, strain gage...

 

Offset adjustable up to 100%

 

Programmable gain : 1, 2, 4, 8, 10, 20, 40, 80, 100, 200, 400, 800 minor drift amplifier

 

Input level from +6.4mV to +5.12 V FS

 

Programmable 8th order elliptic progressive low pass filter CF from 10 Hz to 10KHz. 76dB attenuation at CF*2.5

 

16 bit simultaneous sampling, up to 50 Ks per second and per channel

 

8 programmable current/voltage sources from 0 to 20.48 mA and 0 to 10.24V

 

Compatible with TEDS sensor technology. Open loop and short circuit detection

 

Analog input available after conditioning for other equipment

 

 

 

 

 

Digital I/Os communication and busses


 

 

 

 

 

 

EDIO

16 optoisolated Digital input/output

 

16 optoisolated 28V inputs/outputs and counters
Software selectable direction
Input : 5 – 36 V Iconst 10mA
Output : open collector with overload over current, overvoltage and thermal shutdown. High drive capability 40V – 3A
Isolation 500V input/output and each channel

 

 

ECOM

Multi interface controller board

 

2 redundant CAN bus, 8 multipurpose multiprotocol RS485 input/output with FPGA, suitable for serial lines, PCM and customer protocols,

 

EDIG

2 DIGIBUS or 1 redundant DIGIBUS interfaces

 

Full traffic acquisition : procedure, data, V bits, echoes

 

Short or long stub. GAM T101 (DIGIBUS) standard conformance checks

 

Time stamping of messages with 1 µs resolution

 

E1553

Four redundant MIL-STD 1553 busses

 

Full traffic acquisition : command, status, data

 

Time stamping of messages with 1 µs resolution

 

MIL STD 1553 standard conformance checks

 

EARINC

16 ARINC 429 Rx/Tx interfaces

  Full traffic acquisition, possibility of emission
  12 or 100 KHz, parity check,

 

Time stamping of messages with 1 µs resolution

 

 

 

 

 

External video encoders


 

 

 

 

 

 

 

EPAL-4

Independent 4 video channel H264 encoder to Ethernet

MPEG-4 Part 10/AVC or Motion JPEG

 

Rés : 176x120 to 720x576. 176x120 to 1536x1152 in quadra vision mode.Configurable picture frequency and throughput

 

30/25 PAL/NTSC pictures/sec, 15 pps in quadra-vision

 

2 audio channels

 

Rotation, text insertion, motion detection

 

PoE or 24 Vdc power supply

 

Temp : 0..50°C

 

 

HVIDL-2

Independent 2 high definition video channel H264 encoder to Ethernet

Avail Q4 2012

MPEG-4 Part 10/AVC HE264 baseline profile L4.2

 

1 channel up to 1200p60, or 2 channels up to 1200p30

 

PAL/NTSC composite DVI, RGB inputs

 

Configurable compression ratio. IRIG B time input

 

24 Vdc power supply. Temp : -20..70°C

 

 

 

 

Removable storage

 

 

 

 

 

 

 

ESSD-XX

Local XX GB SSD storage XX = 32 / 64 / 128 GB

 

 

ESSD-CF

Compact flash adapter for removable media

 

 

 

 

Accessories


 

TEL 410

Remote control (wired)

 

Remote commands : Power ON/OFF, record ON/OFF, TOP

 

Displays : Power, recording, System OK

 

Connectors for IRIG B signal and Ethernet,

 


 

 

 

 

 

 

 

 

 

 

 

 

 

 

VGA-CVR

VGA to PAL converter :

 

When onboard displays must be captured simultaneously with system parameters

 

Conversion of VGA images to interlaced PAL or NTSC video

 

VGA resolution : from 640x480 to 1600x1200

 

 Temp : 0..70°C

 

 

AIRG

GPS synchronized IRIG B generator

 

12 satellite channels receiver

 

Internal high precision clock allows continuous IRIG B generation even when GPS signal is lost

 Temp : -10..+ 60°C

 

 Dimensions : 231 (H) x 143 (W) x 56 (D) mm

 

 Weight : 1.750 kg

 

COF0x

Transport and protection boxes

 

Fiber boxes with internal foam for an extra level of protection of a SACHA acquisition system

 

Available for 3 and 6 slots versions

 

Dimensions : 159 (H) x 205 (D) x 223/276 mm (W)

 

Weight : COF03 : 1.7 kg COF06 : 2.5 kg