User manual for ThermalCapture 1 / 14
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1. rev2 May 2014 User manual for ThermalCapture TECHNOLOGY 1 14 ThermalCapture User manual Table of Contents 1 MEAN CDSE AO anp a N gute uate de WINING and CONMECIONS eroria nea daeionatoutens ede IVIAIHW SB CONNECCION EEE 1 1 2 Video CONNEC CIONscocctedteritta td ttenenel sa oes tales Stee tected st 1 1 3 USB Interface for Memory Stick ccccceecceeeeeeeeeeeee ees 1 1 4 Trigger and Serial CONNECHOM ccccceccceececeeeeeeeeseeeeeees ZCG ONGA UOM seses r A E 2 1 Configuration of the TAU Core cccccccccseceesceceeeeteeeeseeeeeees 2 k Pt OTIVER INSU soscecnsuiscietdswesanecasudotnusesanceuasaanndeasmeasconeneseaosetians 2 1 2 Flir Software Installation ccccccecccseceseeeeseeeeseeeesaeeeeees 2 1 3 TAU Configuration ccccccccccececceeceeeeesseeesseeeteeeeseeeesauees 2 2 Configuration of ThermalCapture ccccccccceececeeeeseeeeseeeeeees 3 Th rmmalCapture WSC Cciatass cee erasers n a tamale oe OWI ON epea a 3 2 Data iRECOrdINO os2 icoveie wensvordeneclaudehendtier ednedwirauereieguieodeunieelaceasavel IS OWE OM cers ee a Gace nacaeeeaiaaa tases 4 Post Processing with ThermoViewer Software cccccccseesseeeeeees 4 1 Open RAW data files OF IMAGES cccceccceecceeeeceeeeeaeeseeeeeees 4 2 Adjust RAW conversion ParaMete ls ccccseeeseeeeeeeeeeeeaeeees A gt EX POM TUMGUOMNS risign AA NMEA AVS CDM resis a 2 14 ThermalC2. a l aiea P To open the export dialog press the 4 item from the left within the toolbar or select the item Export frames from the file menu 13 14 ThermalCapture User manual 8 OO Frame export Input settings Start Frame 1 5 End Frame 68 L Qutput settings Target format CSV 7 2 Target directory 1s thamke Desktop export E 3 Target name Output 4 Output _ABCD csv 5 Cancel Export In the Frame export dialog the user can set all necessary option for the export of single or multiple frames The first step is to select frames which should be exported The values in the input fields 1 are taken from the main window input fields but can be adjusted here if needed The target format can be selected by the drop down menu 2 Available formats are PNG JPG and CSV PNG images are stored lossless which means that no compression errors appear in the final image JPG uses non lossless compression but delivers far smaller data sizes CSV writes the temperature values into a comma separated value file which can be used in any application which can open these files like Microsoft Excel or Matlab The target directory into which the output files will be written can be entered manually into the text field 3 or can comfortable be selected by opening a file browsing window using the button The target name consists of three parts The first part can be entered by the user into the
3. 1 2 Flir Software Installation The configuration of the Tau core is done by software from FLIR You need the FLIR Camera Controller GUI for Tau and Quark http www flir com cvs cores view id 51880 and the FLIR GUI User Guide http www flir com uploadedFiles CVS_Americas Cores_and_Components_NEW Resourc es GUI_UsersGuide_r100 pdf Connect the Mini USB interface of ThermalCapture to your PC and follow Chapter 4 of the FLIR GUI User Guide to connect to the camera 2 1 3 TAU Configuration ThermalCapture gets the images from the digital output of the TAU core This output is switched off by default If the output is not enabled ThermalCapture cannot record images The digital output must be enabled with the Flir Camera Controller GUI After the FLIR GUI has connected to the TAU core go to the Digital Video Tab and select CMOS for XP Bus Output and 14 bit filtered output File View Camera Tools Help SFLIR _ Analog Video gt Digita ital Video gt Ethernet Controls gt Image Capture gt Camera Type Tau 324x256 Camera Digital Output C off 14 bit Filtered J 8it 14bit Raw XP Bus Output None _ BT 656 CMOS Part 41320009H SPNLX FPA Size Connected MSCOMM Ser 65460 324x256 If your TAU core has the advanced radiometry option TLinear should be enabled to have per pixel temperature measurement in ThermoViewer 7 14 ThermalCapture User manual These setting
4. This is a USB host interface which is intended to be used with a small USB memory stick It is able to power common memory sticks but not USB hard drives ThermalCapture stores the captured images on the memory connected to this interface 1 1 4 Trigger and Serial Connector The trigger and serial connector has the following pin definition Trigger IN GND Serial IN NC Reserved A WwW N gt Image capture is triggered when the Trigger IN pin is pulled to ground It is connected to 3 3V internally via resistor You can apply a switch or a transistor between 1 Trigger IN and 2 GND It is also possible to connect a digital signal 0 5V to the trigger input Images are captured as long as Trigger IN is at ground level It is not possible to connect 4114 ThermalCapture User manual the trigger input permanently to GND because in this case there would be no way to switch ThermalCapture off or release the memory stick without potentially damaging its file system Serial IN is a UART interface It supports inverted and not inverted signals 0 5V The data received at this pin is continuously stored in an internal buffer This buffer is added to any stored image So it is possible to connect a GPS receiver or an IMU to ThermalCapture Since the data is only stored but not processed at ThermalCapture any UART based protocol can be used as long the sensor begins with data output on its own Interf
5. Write to file settings for the serial interface are communicated to ThermalCapture by generating a configuration file and saving it onto the USB memory stick which is used for picture storage This file contains information about the Baudrate 1 Parity Bit 2 Stop Bit 3 and Inversion settings 4 These settings must agree with the settings of the connected hardware e Supported Baudrates range from 1200 to 115200 e Parity can be set to none odd or even e 1or2 Stop bits e The check box 4 determines if inversion is active or not The button Write to file opens a file dialog in which the root directory of the USB memory stick should be selected as target The supposed filename TCCONFIG BIN must be used to allow ThermalCapture to read it The file can also be saved to a different destination and copied to the USB memory stick manually later on 9 14 ThermalCapture User manual 3 ThermalCapture Usage ThermalCapture was designed to be used with UAVs Its task is to store thermal image data from the TAU core when the trigger signal occurs So there is only limited human intervention necessary to operate ThermalCapture In the following the complete process from power up through data recording to power down is described 3 1 Power On You can power on with or without a connected memory stick ThermalCapture begins to boot immediately when 5V is supplied to the MINI US
6. center area of ThermoViewer All parameters needed for conversion from RAW into a user friendly representation are determined automatically if this feature is not disabled by the user If a video file is loaded the user can switch between the images contained by using the slider below the preview image The set begin and set end are used to set the current frame as the beginning or end for an export run 4 2 Adjust RAW conversion parameters some times the automatically generated images do not fully satisfy the users needs Let s imagine there is a very hot spot within the data which is not of interest at the moment This leads to the situation that all areas with a lower temperature are shown in black or a dark blue without enough contrast to catch details This problem can be solved in the RAW parameters settings window Settings RAW conversion parameters 800 RAW Parameters Gain low 5692 Gain high ns 38 Automatic gain El 2 Automatic for current image Color l False color 1 a _ Invert 3 Rotate O 90 Clockwise 90 Counter Clockwise 180 4 Radiometry TLinear high gain 5 RAW data has a range from 0 to 16384 The Low and High sliders determine the upper and lower boundaries for conversion into viewable data All pixels with a RAW value below the selected threshold will be set to black and all pixels above will be set to white Changes of the slider values are taken into
7. B connector During boot up the LED on the back side glows red This will take one or two seconds After boot up ThermalCapture waits for the USB Memory stick and the LED glows green When the stick was found and ThermalCapture is ready to work this LED will start blinking green 3 2 Data Recording When the trigger input is pulled to ground images from the TAU core are captured and stored to the USB stick The LED on the back side will flicker red and the letters REC are shown in the analog video output Do not power off ThermalCapture or release the USB stick when the red LED is flickering The file system of the USB stick may get damaged If an error occurred while writing the data to the USB stick the LED will blink green and red alternately This will even happen if the USB stick is full 3 3 Power Off Every time the LED does not flicker red it is safe to remove the USB stick or to power off ThermalCapture Power off can only be done by turning off the power supply which is connected to the MINI USB connector 10 14 ThermalCapture User manual 4 Post Processing with ThermoViewer Software e090 ThermoViewer 1 3 2 TeAx Technology a B DO FAs ve Image Details v Users v i thamke Date 07 11 2013 gt svn Time 08 29 36 _ Longitude 7 85161 4 A Latitude 50 7969 gt jj 00_Scans Camera Tau 640 gt angebote gt export gt sammlung gt screenshots gt Tau640
8. _SampleData gt A gt ia gt Adim gt a Applications gt Anolications Parallels Tau640_SampleData F Tau640_SampleData zip amp Tau640_tmc_SampleData TMC jc set begin E 6 68 setend X 99 Y 404 Temp 6 41 The image above shows a standard ThermoViewer window while working with RAW data The user interface is divided into three parts The left side of the window is the file selection area where the folder containing the image 1 and the image to show 2 are selected The center area 3 shows the converted RAW data either as a black and white image or as a false color interpretation On the right side 4 information from serial data and the position of image acquisition is shown if available The toolbar 5 gives access to file input and output options and also to configuration dialogs If a video file is loaded the video control options 6 will appear below the preview window of the converted data 4 1 Open RAW data files or images This software is capable of showing RAW data collected with ThermalCapture hardware Opening files can be done in three different ways 1 Select the folder directly in the directory tree 1 and after that select the file to open by clicking on it once 2 2 Use the toolbar buttons 5 3 Use the corresponding menu items within the File menu 11 14 ThermalCapture User manual Either way the image is loaded and shown in the
9. account in real time so results are visible instantaneously To reset the values back to default click the Automatic for current image button right to the faders 2 If the Automatic gain checkbox is checked optimal values will be determined for every new image If it is not the selected values will be used to convert every newly loaded image This is helpful if more than one image was taken in a row and the same parameters lead to a good result 12 14 ThermalCapture User manual The color drop down list 3 provides three different color schemes that can be used to transfer the RAW data into false color image All of these three color schemes can additionally be inverted by checking the appropriate checkbox If the orientation of RAW data is wrong it can be corrected by selecting a rotation angle 4 They are available in 90 degree steps The Radiometry drop down list is used to chose if a legend should be added to the image and if so how the RAW data has to be interpreted There are the options none for no legend TLinear high gain and TLinear low gain If the connected Tau core supports the advanced radiometry features the appropriate item has to be chosen from the two TLinear options 4 3 Export functions You can export data to binary image formats like PNG and JPG and from version 1 3 2 on also into comma separated value files CSV i f m ma r q m T d y 1 a
10. ace settings baud rate etc can be done with the serial configuration tool see chapter 2 5 14 ThermalCapture User manual 2 Configuration Before ThermalCapture can be used in a specific setup it is necessary to configure the TAU core correctly Configuration of ThermalCapture is only needed if the serial input see chapter 1 1 4 is used to connect to a GPS receiver or a similar device 2 1 Configuration of the TAU Core TAU core configuration is only necessary if you have mounted ThermalCapture to a TAU core on your own or if you want to change some core related settings If this is not the case please proceed with chapter 2 2 2 1 1 Driver Install ThermalCapture uses the FTDI232RL USB serial converter IC to connect the TAU core to the Mini USB interface To get access to the TAU core with your PC you may need to download and install the FTDI VCP driver from http www ftdichip com Drivers VCP htm After installation the TAU core is connected to a virtual serial interface COMX Please open the device manager and look which COM interface it has got F ET Gerate Manager aiia Aktion Ansicht m H ml amp 4 markus win vm gt gt Akkus a Ta Anschl sse winks a atl I ia USB Serial Port COM3 lt a gt Audio Video und Gamecontroller gt JE Computer y e Diskettenlaufwerkcontroller tl Mierbetanlanfaarba 6 14 ThermalCapture User manual 2
11. apture User manual 1 Initial Operation Before you can use ThermalCapture the first time it is necessary to proceed the following steps This guide assumes that ThermalCapture is already mounted to a TAU core If this is not the case please follow the ThermalCapture Mounting Guide first 1 1 Wiring and Connectors ThermalCapture has the following connectors 1 Mini USB for configuration and 5V Power Supply 2 Composite NTSC or PAL video out 3 USB for memory stick 4 Trigger and serial connector 1 1 1 Mini USB Connector ThermalCapture and the connected TAU core are powered from the Mini USB interface This interface also allows the configuration of the TAU core via the FLIR TAU GUI To do TAU core configuration disconnect any memory device from connector 3 connect ThermalCapture to your PC and follow the chapter 2 of this guide Thermal Capture is intended to be used with small UAVs Therefore you need an adapter cable from Mini USB to your 5V power supply ThermalCapture can work with a DC voltage from 5 to 6V The source must be able to deliver at least 600mA continuous and peeks up to 1A 3 14 ThermalCapture User manual 1 1 2 Video Connector This is a MCX connector providing the NTSC or PAL composite video out from the TAU core The video standard and other video related settings can be configured with FLIR TAU GUI see chapter 2 1 1 3 USB Interface for Memory Stick
12. s must be saved permanently To achieve this go to the Setup tab and click to Save Settings a FJ Tau Camera Controller Ix File View Camera Tools Help SFLIR Ea Status Flat Field Correction Operating Mode Test Pattern 3 QO Manual Auto Q External i off FFC Interval 7 fi Setup 200 rames O RSA O aes Low Gain 7 FFC Interval 1350 ae F Gain Mode Temp change 5 0 1 C O is External Sync Video Low Gain fio 01 C oa Temp change s Low e Disable o High Q slave AGC Dorre _ master A Scratch Pad Thermal ena Write Save Settings Factory Defaults Reset Camera Part 41320009H SPNLX FPA Size Connected MSCOMM Ready ae 324x256 Without this the settings will be lost with the next power cycle and recording cannot work Now the TAU core is ready to be used with ThermalCapture 8 14 ThermalCapture User manual 2 2 Configuration of ThermalCapture If the serial input See chapter 1 1 4 is used it needs to be configured for a specific data source ThermalCapture is delivered together with a configuration software to set up this serial interface This chapter describes how to use the C Configurator software E ThermalCapture Serial Configuration eerste ce Configuration Settings for interface between ThermalCapture device and additional hardware Baudrate 9600 z Parity bit none z 2 Stop bit a 3 m4 Inverted signal
13. textfield 4 ThermoViewer will automatically add a continuous number to this name and also the extension selected in 2 4 4 NMEA Parser If you connect a GPS receiver to the serial interface of ThermalCapture and the device is set up to send NMEA data then you are able to activate the Parse NMEA Data option in Settings menu Extracted data from the GPRMC messages is then shown on the right side of ThermalViewer main window 14 14
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