Allied Vision Technologies Pearleye P-007 LWIR Technical Manual Download Page 3

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Pearleye Technical Manual

V2.2.0

Contents

Contacting Allied Vision Technologies

................................................... 5

Introduction

............................................................................................................ 6

Document history............................................................................................................ 6
Manual overview ............................................................................................................. 8
Conventions used in this manual ...................................................................................... 10

Styles ..................................................................................................................... 10
Symbols .................................................................................................................. 10

Before operation........................................................................................................... 11
Safety warnings ............................................................................................................ 11

Conformity

..............................................................................................................13

CE .......................................................................................................................... 13

Specifications

.......................................................................................................14

Pearleye P-007 LWIR / P-007 LWIR High Temp ..................................................................... 14
Pearleye P-030 LWIR ...................................................................................................... 16
Spectral transmission .................................................................................................... 19

Camera dimensions

..........................................................................................20

Pearleye P-007 LWIR / Pearleye P-030 LWIR........................................................................ 20

Start up

.....................................................................................................................22

Camera control commands .............................................................................................. 22
Adjust the image processing............................................................................................ 24

Camera interfaces

.............................................................................................25

Control connector ......................................................................................................... 26

Conversion of image data to temperature data .................................................................... 30
Consideration of the emission ratio................................................................................... 32
GigE interface............................................................................................................... 34

Pin assignment of the Gigabit Ethernet jack.................................................................... 34

Image processing

...............................................................................................35

Image processing chain .................................................................................................. 35

Two-point correction ................................................................................................. 36

Summary of Contents for Pearleye P-007 LWIR

Page 1: ...Technical Manual LWIR cameras with GigE interface V2 2 0 02 May 2012 Allied Vision Technologies GmbH Taschenweg 2a D 07646 Stadtroda Germany AVT Pearleye...

Page 2: ...vided by Allied Vision Technologies is supplied without any guarantees or warranty whatsoever be it specific or implicit Also excluded are all implicit warranties concern ing the negotiability the sui...

Page 3: ...earleye P 030 LWIR 20 Start up 22 Camera control commands 22 Adjust the image processing 24 Camera interfaces 25 Control connector 26 Camera I O connector pin assignment 15 pin D Sub jack 26 Power sup...

Page 4: ...s 47 Two point correction A B E J K N 47 Background correction U M 52 Bad pixel correction C F 55 Temperature drift compensation m n o p 56 Look up table LUT D G 57 Integrator and image store H 58 Bau...

Page 5: ...49 36428 677 28 e mail info alliedvisiontec com Allied Vision Technologies Canada Inc 101 3750 North Fraser Way Burnaby BC V5J 5E9 Canada Tel 1 604 875 8855 Fax 1 604 875 8856 e mail info alliedvision...

Page 6: ...12 Corrections Chapter Specifications on page 14ff Added focus range in Chapter Pearleye P 007 LWIR P 007 LWIR High Temp on page 14 Deleted Mono8 in Chapter Pearleye P 007 LWIR P 007 LWIR High Temp on...

Page 7: ...n in Formula 1 Emissivity correction on page 32 File numbers 128 129 instead of 128 in Chapter Upload a file to flash Q on page 62 V2 1 1 27 01 12 Some smaller corrections Corrected lens f stop values...

Page 8: ...ated Transmission curves legend contains Transmission see Chapter Spectral transmission on page 19 Corrected All models are equipped with multiple correction data sets Chapter Adjust the image process...

Page 9: ...30 LWIR firmware It is related to the individual modules of image processing and shows in what way the user can control these modules via the serial interface Chapter Basic parameters and commands on...

Page 10: ...ms inputs or highlighting important things bold Courier Code listings etc Input Upper case Register REGISTER Italics Modes fields Mode Parentheses and or blue Links Link Table 2 Styles Note This symbo...

Page 11: ...d For a quick guide how to get started read How to install a GigE camera Bigeye Pearleye Goldeye Safety warnings Note Please read through this manual carefully before operating the camera Caution Befo...

Page 12: ...rait 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 r...

Page 13: ...d cameras of the Pearleye family to which this declaration relates are in conformity with the following standard s or other normative document s CE following the provisions of 2004 108 EG directive Ro...

Page 14: ...m x 35 m Image size max 320 H x 240 V Lens mount M65 x 0 5 Field of view FOV With 18 mm lens 35 x 26 Focus range 0 5 m manually adjustable Spectral response 8 14 m LWIR Pixel format Mono12 Frame rate...

Page 15: ...L x W x H incl connectors Mass 830 g with 18 mm f 1 0 lens Housing material Aluminium alloy AlMgSi1 Operating temperature Reference to the internal temperature sensor 15 C 50 C Optimal working range R...

Page 16: ...inity manually adjustable Spectral response 8 14 m LWIR Pixel format Mono14 Frame rate up to 24 fps Measurement temperature range 20 C 80 C standard version Sensitivity NETD typical 80 mK 303 K f 1 0...

Page 17: ...storage 30 C 70 C Relative humidity operating and storage 10 95 without condensation Shock 25 g Vibration 2 g Regulations CE RoHS 2002 95 EC Options Suitable lenses for LWIR with various focal lengths...

Page 18: ...leye Technical Manual V2 2 0 18 Note The right polarization of the 12 V supply voltage must be assured The warranty becomes void in case of unauthorized tam pering or any modifications not approved by...

Page 19: ...Specifications Pearleye Technical Manual V2 2 0 19 Spectral transmission Figure 1 Spectral transmission of Pearleye P 007 LWIR Figure 2 Spectral transmission of Pearleye P 030 LWIR...

Page 20: ...leye P 007 LWIR Pearleye P 030 LWIR front side back UNC 1 4 UNC 1 4 M4 max screw depth 4 5mm 4 5mm 3mm 13 31 44 71 GIP 1000 Camera 86 Lens 18mm f 1 1 1 8 38 1 45 7 62 94 101 max 32 7 max 28 9 15 27 Po...

Page 21: ...olor Description Power Green Power indicator L2 Red Camera is operational L3 Red Temperature state Off means temperature is ok L4 Red Trigger reset input activity L5 Red Frame output activity Table 5...

Page 22: ...5 pin D SUB jack then e g HyperTer minal being part of Microsoft Windows deliveries might be the choice to manually control the camera AVT provides the software AcquireControl this can operate the cam...

Page 23: ...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 equals sign and a question mark...

Page 24: ...sing on page 35 The camera is configured ex factory with parameter settings which ensure a basic image correction Pearleye P 007 LWIR Pearleye P 030 LWIR are equipped with multiple correction data set...

Page 25: ...l V2 2 0 25 Camera interfaces This chapter gives you information on the control junction inputs and outputs and trigger features www For accessories like cables see http www alliedvisiontec com emea p...

Page 26: ...a I O connector pin assignment Pearleye P 007 LWIR Pearleye P 030 LWIR Pearleye P 007 LWIR Pearleye P 030 LWIR Pin Signal Direction Level Description 1 External Power 12 V DC 0 5 Power supply max 1 5...

Page 27: ...e of the new image In this way a synchronization of several cameras is possible Note Operating this serial interface and the second available port indirect via GigE Vision features concurrently may le...

Page 28: ...us periodical trigger the pulse must be at least 82 s in length and the periodic time exact 41 608 ms 20 s Sensor temperature too low pin 12 13 As long as the sensor operating temperature is too low t...

Page 29: ...An indication of sensor temperature being too high results in a degradation of image quality and inexact temperature measurement In case that this control output is permanently active already after s...

Page 30: ...l LUT the pixel information can be converted to a correspond ing temperature value For the Pearleye P 007 LWIR the following relation can be used T r x DN o with DN 12 bit digital value pixel data T T...

Page 31: ...LWIR the following relation can be used T r x DN o with DN 14 bit digital value pixel data T Temperature value C r Resolution for Pearleye P 030 LWIR standard version 0 0075 C o offset for DN 0 for P...

Page 32: ...ture The best result can be reached with materials that have emissivity ratio near to 1 0 100 The following formula allows correcting the temperature value when the emis sivity ratio is known with Tt...

Page 33: ...leye Technical Manual V2 2 0 33 Note Normally the background temperature can be assumed to be equal to the environmental temperature The emission grades of many different materials can be found on var...

Page 34: ...rface RJ 45 connector The data connection between camera and PC can be established via a standard CAT5e patch cable Pin assignment of the Gigabit Ethernet jack Note For more information see the Pleora...

Page 35: ...n of correction modules which perform these tasks in real time Each module can have various parameters which control the operation mode In the drawing above and as well within the text of this manual...

Page 36: ...with the background correction the image quality can additionally be enhanced The shutter is closed for a short time to acquire a temporary background correction image This image is subtracted from th...

Page 37: ...ons Files are identified via one byte Regarding to its function this file number is somewhat comparable to the file name including extension from the PC world Valid file numbers are between 1 0x01 and...

Page 38: ...erence images at the scene temperatures TA and TB the data samples can be determined for all pixels Furthermore the digital set values J and K each belonging to the temperatures TA and TB are determin...

Page 39: ...low reference temperature TA The parameter B serves the same purpose for the reference image at temperature TB For improvement of image quality the camera usually is delivered ex factory with several...

Page 40: ...eters A and B At all times only one page can be active simultaneously and all eventual modification of the correction data takes place within this page For each correction memory page a further pair o...

Page 41: ...hatmemorypage S becomes activated which is showing the best results for the statistics value Depending on the number of available data sets the automatic data set selec tion can take some seconds Duri...

Page 42: ...ending on the current image rate and the number of correction data sets available Table 10 GigE feature AutoCalibrateOnce Description Time Max Time Typical time for a Pearleye P 007 LWIR Close shutter...

Page 43: ...e started approx every 1200 seconds 20 minutes 1200 sec 6 4 sec per count 188 0xBC k BC CR Choose data set N1 2 T 2662 ms 1331 ms N1 16 Close shutter 5 T 208 ms 208 ms Integrate images N2 1 T 2704 ms...

Page 44: ...hat the tempera ture warning remains active for a longer period the environment temperature of the camera should be checked The camera is equipped with an internal temperature sensor The temperature c...

Page 45: ...cialFeatures Feature Visibility Description SensorTemperatureState Expert Camera sensor temperature state 0 The sensor temperature is OK 1 The sensor temperature is outside the optimum range QuerySens...

Page 46: ...al It lists a short description for each command available in the firmware Note This function is not available as GigE Vision feature Note The displayed command reference is for both AVT Goldeye and A...

Page 47: ...ption A File number of the first correction image recorded at cold reference temperature B File number of the first correction image recorded at warm reference temperature E Two point correction opera...

Page 48: ...rom the input data In addition the set value J is added as offset to each pixel value 5 One point correction Simple subtraction of the correction data B from the input data In addition the set value K...

Page 49: ...rs A 1 then B 1 and so on This process is continued as long as one file within the sequence is missing in the flash or the maximum number of correction sets actually 32 had been achieved In case durin...

Page 50: ...in one file the number of which is indicated by the parameter N If N is not zero the values for all correction sets from this file are loaded when switching on the camera and stored back with X 1 In c...

Page 51: ...Expert File number of the flash file containing the set values for the two point correction N value command TPC_SetValue_LowRef Expert Define the set value for the low reference image of the two poin...

Page 52: ...nt of the other ones a Controls the output of background correction module Beside the nor mal background correction mode also the actual memory content H U of the integrator can be output In this case...

Page 53: ...lue M 2 Output activated Output of current correction image H U b 0 Integration deactivated The image store content is not changed 1 Integration 1 image The following image is copied into the image st...

Page 54: ...image with the command U does not modify M Only the 12 14 most significant bits of this 16 bits value are relevant The following table reveals the bit order Example Set the background correction offse...

Page 55: ...ion F 1 CR By means of parameter C the file number of the required correction data is indi cated Ex factory the defective pixels are determined one time and the corre sponding correction data is store...

Page 56: ...lope of the linear drift compensation term n T o The value specifies the slope in counts per C and is represented in 10 6 bit fixed point two s complement notation With o p16 the offset is specified T...

Page 57: ...he file containing the LUT data is set with parameter D Ex factory the LUT is determined one time and stored into the flash As generally only one LUT exists in the camera it is not necessary to change...

Page 58: ...way this module has a simple image store function b Defines the number of images to be integrated and starts the integra tion process as soon as a new value was set c Controls the data copy mode The i...

Page 59: ...integrated and the result is copied into the image store 5 Integration 16 images The following 16 images are integrated and the result is copied into the image store 6 Integration 32 images The follow...

Page 60: ...arameter value are divided into three different sized bit groups a eand x Each bit group has aspecialfunction being independentof theother ones a Controls the configuration of the serial port e Contro...

Page 61: ...w rw rw Bit group Value hex Description x O 110 Baud 1 300 Baud 2 600 Baud 3 1200 Baud 4 2400 Baud 5 4800 Baud 6 9600 Baud 7 19200 Baud 8 38400 Baud 9 57600 Baud A 115200 Baud a 00 RS232 via 15 pin SU...

Page 62: ...of the Pearleye P 007 LWIR Pearleye P 030 LWIR the file numbers 1 32 96 112 113 128 129 are used File numbers greater than or equal to 240 are reserved for the system itself and will be not visible t...

Page 63: ...data Example Q 10 CR N00000007S4200 PAUSE D5465737474657874 As from confirmation of the command Q with CR the following characters are not echoed back as usual That means that the control character s...

Page 64: ...ytes of the specified file to the serial interface not in ASCII hexadecimal notation as with Q p8 The above mentioned example would produce following output v 10 Testtext Because this example uses an...

Page 65: ...while for output For an easy access to the file system AVT also offers an Windows application File manager that can be used to upload files This is also included in the AcquireControl application and...

Page 66: ...pper case and are 1 to 4 digits long The command is activated by sending a carriage return character CR ASCII character number 0x0D Serial communication operates in echo mode by default This means tha...

Page 67: ...x chars consisting of bit fields The function of each bit field is described like this aa Lower case letters label the bits of interest 00 These bits have to be zero _ Separation character for readabi...

Page 68: ...on data loading from flash NIR 300F Goldeye CL 008 P 008 0 Buffer used during normal mode CC2 high 1 Buffer used during fast AOI mode CC2 low f The shutter s normal inactive state IRC 320 600 Pearleye...

Page 69: ...age activate the correction if deactivated U 1 and eventually see bit field e set offset to mean value of the new correction image M p16 Bit field f specifies the number of frames to integrate See bit...

Page 70: ...n A linear compensation term n T o p is added to the pixel data to correct a drift depending on the temperature T The temperature T is measured internally Slope and offset of the linear term are contr...

Page 71: ...e Correction data is recorded during the factory calibration process Changing this parameter or the specified file contents may void ex factory calibration s p8 Configure the UART s for main serial co...

Page 72: ...ts within the flash it is loaded into the second page of the correction memory This sequential loading procedure is continued as long as one file number in the sequence is missing or the maximum numbe...

Page 73: ...Image data is passed through transparently 1 Two point correction activated Correction data A and B with set values J and K of the actual correction memory page S are employed 2 Two point correction...

Page 74: ...ntegrate 32 images and divide by 32 111 Integrate 64 images and divide by 64 Other values undefined c Control of the data copy process usually done after a new image has been integrated Let pass throu...

Page 75: ...s for the two point correction J K Changing this parameter or the contents of the specified files may void ex factory calibration 0 No set values are loaded The memory content remains uninitialized at...

Page 76: ...quality Please ensure that the temperature of the camera housing is inside the specified range b PLL state 0 PLL is locked 1 PLL is not locked This should never occur under normal circumstances T 2 Q...

Page 77: ...100 Integrate 8 images and divide by 8 101 Integrate 16 images and divide by 16 110 Integrate 32 images and divide by 32 111 Integrate 64 images and divide by 64 Other values undefined c State of the...

Page 78: ...wRef Expert A value TPC_FirstImage_HighRef Expert B value BackgroundCorrection BGC_OperationMode Expert U value BGC_OffsetValue Expert M value LUT LUT_OperationMode Expert G value LUT_CorrectionData_F...

Page 79: ...DeviceModeName Name of the attached camera model DeviceID Unique 32 bit device ID of the AVT camera model DeviceUserID User ID field This field can be accessed R W by the user to store an additional d...

Page 80: ...ght This feature represents the actual image height expelled by the camera in pixels OffsetX This feature represents the horizontal offset from the origin to the AOI in pixels OffsetY This feature rep...

Page 81: ...atures Force a reload of all parameters from the CameraSpecialFeatures section Table 38 Camera special feature Calibration and correction data Feature Description CameraTemperatureState Camera tempera...

Page 82: ...e command TPC_FirstImage_LowRef File number of the first low reference image of the two point correction A value command TPC_FirstImage_HighRef File number of the first high reference image of the two...

Page 83: ...value command While reading this feature the MSB shows the state of the integration process 0 Idle 1 Busy Table 44 Camera special feature IntegratorAndImageStore Feature Description BPC_OperationMode...

Page 84: ...on sets 37 current parameter settings Y 45 D declaration of conformity 13 dimensions 20 document history 6 drift compensation 36 E electromechanical shutter I 44 emission ratio 32 emissivity correctio...

Page 85: ...ature too high 26 29 too low 26 28 serial commands 23 Serial interface 27 show help text 46 software version and correction data information V 45 Specifications Pearleye P 007 LWIR 14 Pearleye P 030 L...

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