vds IRC-320GE Series User manual

IRC-320GE IRC-320GE
LWIR Camera (320 x 240 Pixels)
with Integrated Image Processing
and Gigabit Ethernet Output
LWIR Camera (320 x 240 Pixels)
with Integrated Image Processing
and Gigabit Ethernet Output
irc-320ge_manual_v3_00_en.docge_manual_v3_00_en.doc
ManualManual
Version 3.0Version 3.0
Art.-No.: 3143000Art.-No.: 3143000
This document may not in whole or in part be copied, photocopied or otherwise
reproduced without prior permission of the publisher.
This document may not in whole or in part be copied, photocopied or otherwise
reproduced without prior permission of the publisher.
Date: March 2010 Date: March 2010
Technical details are subject to change without notice.Technical details are subject to change without notice.
Weiße Breite 7 ·D-49084 Osnabrück
Phone +49 (0) 541 / 80084-0 ·Telefax +49 (0) 541 / 80084-10
http://www.vdsvossk.de ·email: [email protected]

C O N T E N T S
1INTRODUCTION.........................................................................................................................................4
1.1 COMMON FEATURES ....................................................................................................................................4
1.2 STANDARD MODEL VARIANTS......................................................................................................................4
2TECHNICAL DATA ....................................................................................................................................5
2.1 SPECTRAL RESPONSE ...................................................................................................................................5
2.2 PROTECTION AGAINST ELECTROSTATIC DISCHARGE ...................................................................................6
2.3 ENVIRONMENTAL CONDITIONS....................................................................................................................6
2.4 WARM UP PERIOD........................................................................................................................................6
3MECHANICAL DIMENSIONS..................................................................................................................7
3.1 SIDE VIEW OF THE IRC-320 WITH 18MM F/1.0 LENS ...................................................................................7
3.2 BACK VIEW OF THE CAMERA .......................................................................................................................7
4START UP .....................................................................................................................................................8
4.1 DIRECT CAMERA CONTROL SIGNALS...........................................................................................................8
4.2 CAMERA CONTROL COMMANDS ..................................................................................................................8
4.3 ADJUST THE IMAGE PROCESSING .................................................................................................................9
5CONTROL CONNECTOR (15 PIN SUB-D JACK) ...............................................................................11
5.1 PIN ASSIGNMENT OF THE CONTROL CONNECTOR ......................................................................................11
5.2 POWER SUPPLY (PIN 1-4) .........................................................................................................................11
5.3 SERIAL INTERFACE (PIN 7, 8).....................................................................................................................11
5.4 TRIGGER (RESET)INPUT (PIN 10, 11) ........................................................................................................11
5.5 SENSOR TEMPERATURE TOO LOW (PIN 12, 13) ..........................................................................................12
5.6 SENSOR TEMPERATURE TOO HIGH (PIN 14) ...............................................................................................12
5.7 FRAME-SYNC OUTPUT (PIN 15) .................................................................................................................12
6DATA INTERFACE...................................................................................................................................13
6.1 CAMERA LINK ...........................................................................................................................................13
6.1.1 Trigger (Reset) Input (CC1)......................................................................................................................14
6.1.2 Timing (FVAL, LVAL, DVAL, PCLK).......................................................................................................14
6.1.3 Output Data Specification ........................................................................................................................15
6.2 CONVERSION OF IMAGE DATA TO TEMPERATURE DATA .............................................................................15
6.3 CONSIDERATION OF THE EMISSION RATIO ..................................................................................................16
6.4 GIGABIT ETHERNET ...................................................................................................................................16
7PARAMETERS OF IMAGE PROCESSING ..........................................................................................18
7.1 IMAGE PROCESSING CHAIN........................................................................................................................18
7.2 FILE SYSTEM .............................................................................................................................................19
8INTRODUCTION TO THE TWO POINT CORRECTION (A, B, E, J, K, N) ......................................20
9BASIC PARAMETERS AND COMMANDS...........................................................................................21
9.1 SELECT A CORRECTION DATA SET (S).......................................................................................................21
9.2 AUTOMATIC CALIBRATION (K)...................................................................................................................21
9.3 ELECTROMECHANICAL SHUTTER (I) ..........................................................................................................22
9.4 TEMPERATURE WARNING (T) ....................................................................................................................22
9.5 SOFTWARE VERSION AND CORRECTION DATA INFORMATION (V) .............................................................22
9.6 CURRENT PARAMETER SETTINGS (Y).........................................................................................................22
9.7 SHOW HELP TEXT (?).................................................................................................................................22
10 ADVANCED PARAMETERS AND COMMANDS............................................................................23
10.1 TWO POINT CORRECTION (A,B,E,J,K,N)................................................................................................23
10.2 BACKGROUND CORRECTION (U,M)............................................................................................................25
10.3 BAD PIXEL CORRECTION (C,F) .................................................................................................................26
10.4 TEMPERATURE DRIFT COMPENSATION (M,N,O,P)......................................................................................27
10.5 LOOK UP TABLE „LUT“ (D,G) ..................................................................................................................27
10.6 INTEGRATOR AND IMAGE STORE (H)..........................................................................................................28
10.7 BAUD RATE (S) ..........................................................................................................................................29
10.8 SAVE PARAMETERS IN FLASH (X) ..............................................................................................................30
10.9 RESET PARAMETERS TO STANDARD VALUES (Z).......................................................................................30
10.10 UPLOAD A FILE TO FLASH (Q) ...............................................................................................................30

11 APPENDIX..............................................................................................................................................32
11.1 COMMAND REFERENCE .............................................................................................................................32
12 DECLARATION OF CE CONFORMITY ..........................................................................................40
13 REVISION HISTORY ...........................................................................................................................41

1 Introduction 4 / 41
1Introduction
With the IRC-320 line VDS Vosskühler offers infrared cameras based on a microbolometer sensor
with 320 x 240 pixels for the LWIR range. As all previous VDS CCD cameras also the IRC-320
provides an excellent image quality. The series IRC-320 is designed as OEM modules with Gigabit
Ethernet output for the long-lasting installation.
According to each application suitable lenses for LWIR with various focal lengths can be offered.
Also different temperature ranges are possible.
1.1 Common Features
•320 (H) x 240 (V) pixels
•Uncooled microbolometer sensor
•8 -14 µm (LWIR) spectral sensitivity
•Measurement temperature range of -20°C up to +80°C (standard version)
•Pixel size: 35 µm x 35 µm
•40 Hz frame rate
•12 bit digital output with Gigabit Ethernet
•Built-in mechanical shutter
•Preprocessor functions included
1.2 Standard model variants
Model VDS Art.-No. Suitable lenses VDS Art.-No.
IRC-320LGE 1043452
12mm, F/0.85
18mm, F/1.0
35mm, F/1.0
9005304
9005306
9005301
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2 Technical Data 5 / 41
2Technical Data
Detector
Detector type Amorphous silicon uncooled microbolometer FPA
Resolution 320(H) x 240(V)
Pixel size 35µm x 35µm
Spectral response 8µm – 14µm (LWIR)
Frame rate 40fps
Sensitive sensor area 11.2mm x 8.4mm
Sensor time constant approx. 7ms
Pixel clock 5.25MHz
Measurement capabilities
Measurement range -20°C … +80°C (standard version)
Sensitivity (NETD) typical 80mK @ 303K @ f/1.0
Environmental characteristics
Operating temperature (Reference to the
internal temperature sensor)
+15°C … +50°C
Optimal working range (Reference to the
internal temperature sensor)
+25°C … +45°C
Storage temperature -30°C … +70°C
Humidity (Operating and storage) 10% to 95% RH, non-condensing
Shock 25G
Vibration 2G
Interface
Power supply 12V (SELV) -0%/+5%, max. 1.5A
Digital interface Gigabit Ethernet (1000Base-T)
Output data 12bit/pixel
Mechanical
Dimension with 18mm F/1.0: 134mm x 90mm x 86mm
Weight with 18mm F/1.0: 600g
Housing material Aluminium alloy (AlMgSi1)
General
CE conform (see page 40, Declaration of
CE Conformity)
EN61000-6-2: 2001; EN61000-6-4: 2001;
EN61000-6-1: 2001; EN61000-6-3: 2001
Made in Germany
Please note:
The correct polarity of the 12 V supply voltage must be assured.
The warranty becomes void in case of unauthorized tampering
or any manipulations not approved by the manufacturer.
2.1 Spectral response
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2 Technical Data 6 / 41
2.2 Protection against Electrostatic Discharge
The camera contains sensible electronic components which can be destroyed by means of electrostatic
discharge. When using the camera one has to take care of a sufficient grounding which is obligatory to
minimize the risk of damage.
2.3 Environmental Conditions
The camera should be operated in dry and dust free environment. The working temperature range
depends on the model version and is for example between 25°C and 45°C (temperature of the camera
housing). Outside this temperature range the image quality can be worse. Also clipping of some
regions or clipping of the whole image is possible outside the working temperature range. Regarding
the signal quality of the IRC-320 it is an advantage to operate the camera under constant ambient air
temperature. This can e.g. be facilitated by assembling the camera on a bigger metal corpus or by an
additional active temperature regulation. The red LED at the backside of the camera (L3) or the value
of the register Tserves for examination. If L3 permanently lights up or rather the lowest bit of Tis set,
the camera housing has a temperature which is outside of the optimum. In this case an additional
heating or cooling has to be provided.
2.4 Warm up Period
Depending on the prevailing environmental conditions, some time might pass after the camera start,
until the image quality reaches its optimum. In case of simple view applications with low demands, the
data are already suitable following an operating period of some minutes. If time stability of the
temperature data is required a longer warm up period of at least 20 minutes is recommended.
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3 Mechanical Dimensions 7 / 41
3Mechanical Dimensions
3.1 Side View of the IRC-320 with 18mm F/1.0 lens
UNC 1/4" UNC 1/4" M4
max. screw depth
4,5mm 4,5mm 3mm
13
31
44
71
GIP-1000Camera
86
Lens 18mm f/1
Ø 1 1/8"
Ø38,1 Ø45,7
62
94
101max.32,7
max.28,9
15,27
3.2 Back View of the camera
Power
L2
L3
L4
L5
Power / Control
connection
Gigabit Ethernet
connection
Ø90
UNC1/4" (2x) and M4
mounting holes are in
the center of main body
LED’s at the Backside of the Housing
L2 Camera is operational
L3 Temperature state (off →temperature is OK)
Power Power state
L4 Trigger (reset) input activity
L5 Frame output
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4 Start up 8 / 41
4Start up
A Gigabit Ethernet port (1000Base-T) on the receiving computer is necessary. First connect the
camera with the appropriate data cable to the computer. Then plug the 15-pin connector of the power
supply to the camera and switch on the power supply.
The camera is controlled over a serial data interface via Gigabit Ethernet.
4.1 Direct Camera Control Signals
A short survey of the CC signals is given below for users who already have some experience in using
Camera Link equipment and who plan to use the IRC-320 with their self-developed software. Some of
the CC signals can also be externally applied to the 15-pin D-SUB control jack, which is compatible to
other VDS cameras.
In case of the Gigabit Ethernet interface option the same camera control signals are used, but they are
controlled by the corresponding outputs of a Programmable Logic Controller accessed over the Pleora
iPORT SDK. Please refer to the Pleora iPORT PT1000-VB User’s Manual and the Pleora iPORT
SDK Documentation for more information.
SIGNAL STATE REMARKS REFERENCE
CC1 0 Trigger (Reset) input (rising edge) 5.4, p. 11
CC2 reserved
CC3 reserved
CC4 reserved
4.2 Camera Control Commands
To configure the internal image processing a serial command interface is provided. By default this
command interface is internally routed to the Gigabit Ethernet port, but the RS232 signals at the 15
pin D-SUB jack may also be used. To access it, a serial terminal program employing the serial port of
the user’s Pleora iPORT software interface or a PC’s RS-232 COM port is required.
For Gigabit Ethernet the Pleora iPORT documentation contains the corresponding information. If the
serial interface is routed over the 15 pin D-SUB jack, then e.g. HyperTerminal, being part of
Microsoft® Windows® deliveries, might be the choice to manually control the camera.
The VDS provided software AcquireControl can operate the camera’s serial port over the Pleora
iPORT Gigabit Ethernet interface or PC standard COM ports. Type <CTRL>+Y to get a camera
control terminal window there.
By default the serial interface uses the following parameters:
•115200 Baud
•8 data bits
•1 stop bit
•No parity
•No handshake
The baud rate is factory-adjusted to 115200 but can also be configured to other values (see chapter
10.7, p. 29).
Each command consists of a command letter, followed by an equality sign and a parameter value in
hexadecimal number representation. The command letter is case sensitive. Hexadecimal values are
always upper case and are 1 to 4 digits long. The command is activated by a carriage return ([CR],
ASCII character number 0x0D. Serial communication operates in echo mode by default. This means
that each character received by the module is echoed back to the sender. In all command examples the
characters send to the camera are represented in Bold Courier Font and the camera’s answer in
Plain Courier Font.
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Recapitulatory the serial commands have the following fixed scheme:
>B=wxyz[CR]
B Command or parameter letter (observe upper and lower case printing!)
= Sign of equality (0x3D)
wxyz 1-4 digits long value in hexadecimal number representation (capital letters)
[CR] Carriage Return (0x0D)
[LF] Line Feed (0x0A)
Example (set Baudrate to 115200 Baud using only RS232 at 15-pin D-SUB jack):
1. The user sends the four characters
s=A[CR]
2. The camera answers with seven characters
s=A[CR][CR][LF]>
3. A terminal program without local echo displays
s=A
>
After successful execution of the command, the command input character ">" is output. If any error
occurred, somewhere previous to the prompt a question mark character "?" is displayed.
To query a parameter value, send the corresponding command letter followed by the equality sign and
a question mark character:
>s=?[CR]
If the intended action does not need any parameter, it is also sufficient in most cases - as a shortcut - to
send the command letter only, directly followed by [CR].
At the beginning of a command sequence it is good practice to check the serial communication by
sending just a [CR] to the camera and verify that the command prompt ">" is returned. There is an
input buffer holding a few characters but no hardware handshake. Thus a sequence of commands
should not be send to the camera without awaiting the intermediate input prompts. Otherwise the
camera’s serial input buffer may overflow.
4.3 Adjust the Image Processing
Subsequently the important commands for quick starting the image correction of the IRC-320 are
mentioned. All further parameters and a description of the correction modules can be found in chapter
7.
The camera is configured ex-factory with parameter settings which ensure a basic image correction. In
the case that the IRC-320 is equipped with multiple correction data sets for different operation
conditions, the image quality can be improved by activating another correction data set if the
conditions of the camera have changed. In addition the IRC-320 models feature an electromechanical
shutter that can further enhance the quality of the corrected image. The selection of a good data set can
be done automatically by use of the serial command k=0. This command also controls the shutter.
Example: Start an automatic calibration process.
>k=0[CR]
S=0A
M=87C8
>
The calibration process needs a few seconds to finish. Please note that during this time no image data
is output. Avoid triggering the camera via CC1 or opto coupler input while the calibration is in
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4 Start up 10 / 41
progress. Depending on the camera model and current jparameter configuration, the actions
accomplished by the kcommand and its output at the serial interface may vary. Refer to the
corresponding command reference in appendix 11.1 for details.
The following table shows an overview of the consumed time by the command “k=0”:
Description Time Max. Time Typical time for a IRC-320
Close shutter (optional) 4 * T 100ms 0ms
Save one image 3 * T 75ms 75ms
Open shutter (optional) 0 * T 0ms 0ms
Choose data set N1 * 2 * T 1600ms 800ms (N1=16)
Close shutter 5 * T 125ms 125ms
Integrate images (N2 + 1) * T 1625ms 1625ms
Open shutter 0 * T 0ms 0ms
Calculate statistics 2 * T 50ms 50ms
At all 3,58s 2,68s
T = Time for one frame-out (IRC-320: 25ms)
N1 = number of data sets (max. 32)
N2 = number of integrated images (max. 64)
VDS Vosskühler GmbH IRC-320