NerdCam3D Mk.1 Instruction Manual
Contents
1. EMC Directive 2004 108 EG EN 55022 2010 EN 55024 2010 RoHS Directive 2011 65 EU EN 50581 2012 WEEE Directive 2012 19 EU EN 50419 2006 The technical documentation is kept at the above mentioned address open for inspection A l Tih Dr Ing Michael saver Managing Director Ulm 05 11 2014 Prepared by Version Page MS 1 0 2014 05 11 22 of 22 Subject to change without notice2. Video signal before calibration Video signal after calibration A Cross hair symbols generated by camera Depiction of target marking in video signal Figure 11 Video signal before and after optical calibration The calibration sequence may be as follows Enable the camera generated cross hairs with DIP switch No 3 2 Mount the camera into the calibration device attach an auxiliary video monitor to the output of the camera and focus the video signal by rotating the lenses 3 Compare the position of the facing cross hair centers from depicted target marking and overlaid calibration marking in the video signal 4 Loosen the screws of the lens holders on the rear of the camera board and manually move the lens holders until the facing cross hairs match as shown in Figure 11 5 Tighten the screws of the lens holder to fix the holder in the current position The described calibration procedure requires some patience and practice The match of the facing cross hairs does not need not be perfect to 100 Slight deviations from the ideal lens holder posi tion are tolerable 7 2 Attachment of Headers Connection Overview The camera has a number of soldering positions at which header pins or cables can be attached Those positions are arranged in seven different groups Figure 12 Prepared by Version Date Page MS 1 0 2014 05 11 17 of 22 Subject to change without notice NerdCamsD In
3. operate near or at a multiple of the camera s clock frequency 27MHz and consequently cause strong interferences which the internal cam era power filter cannot eliminate In case the camera works with a conventional battery pack e g 4x1 2V NiMH batteries but not with the present BEC then the BEC is the root cause of the problem Transient interferences within the video signal which do not originate from the utilized wireless video transmission gear Missing ground connection between the video output of the camera and video input of the transmitter The video signal is an RF signal and should be guided using 750 coaxial cable from the camera to the trans mitter Prepared by Version Date Page MS 1 0 2014 05 11 14 of 22 Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE 6 Maintenance and Repair For maintenance of the camera no further measures are necessary It is recommended to check from time to time the optical calibration of the two lenses see chapter 7 1 for example after acci dental hard landings of RC controlled airplanes or multicopters 7 Modifications The camera provides the opportunity to perform mechanical and electronic modifications by expert intervention The mechanical modifications relate to the replacement of the standard lenses and lens holder by alternative models The electronic
4. Exposure Mode 1 Exposure Mode 2 Sensor area utilized for auto exposure settings amp control M Ms See E LED off Figure 3 Exposure modes 1 amp 2 and their indication with the status LED Alternatively the exposure mode 2 can be activated for example using a remotely controlled switch In this mode the measurement window size is limited to the upper half of the sensor s ac tive region For this purpose the Pin AE_HWP Auto Exposure Half Window Position located on the extension port of the camera needs to be connected to Ground The camera automatically de tects this request within a few milliseconds If the ground connection on the said pin is released again the camera automatically switches back to default exposure mode 1 The display of the ac tual mode of operation with the status LED is updated accordingly Prepared by Version Date MS 1 0 2014 05 11 Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE 5 1 Configuration with DIP switch A quadruple DIP switch is used to influence the fundamental mode of operation of the camera The positions of all four switches are read and processed at power up only All further modifications to the switch setting will be ignored as long as the camera remains uninterruptedly in operation This feature does not apply to switch S3 which is permanently read and processed S4 3 S2 S1 Sw
5. Left camera Right camera Left camera Right camera a a a Squeezed Side by Side 3D Format Cropped Side by Side 3D Format Figure 5 Supported variants of the Side by Side 3D format The squeezed Side by Side 3D format is the default format which is directly supported with many 3D video goggles However the cropped Side by Side 3D format is best suited for use of the cam era along with the Oculus Rift DevKit 5 2 Configuration with Potentiometer The camera is equipped with a small potentiometer which is used to control an important subset of the mentioned fundamental modes of operation Firstly the interaxial distance in the stereoscopic Side by Side video signal can be influenced gradually and secondly the 3D convergence setting of the optional on screen display OSD may be adjusted The integration of the optional OSD is de scribed separately in chapter 7 3 The following table outlines those DIP switch positions for which the potentiometer fulfills a dedi cated function For all other unmentioned switch positions the potentiometer setting is ignored Function Switch S1 Switch S2 Switch S3 Switch 4 Convergence OSD Don t care Field Sequential Don t care Don t care Convergence OSD Don t care Side by Side Don t care Squeezed SBS Interaxial distance NTSC Side by Side Don t care Cropped SBS Please note that the OSD is in operation only if a suitable analog digital converter ADC is at tached
6. any express or implied warranties of fitness for such High Risk Applications You represent that use of the Product in such High Risk Applications is fully at your risk 2014 TMG Ingenieurbtro UG haftungsbeschr nkt All rights reserved cinemizer is a registered Trade mark of Carl Zeiss Vuzix and Wrap are trademarks of Vuzix Corporation registered in the U S and other countries Oculus Oculus Rift und Oculus VR are trademarks of Oculus VR Inc All other trademarks are the property of their respective owners This document is licensed under the Attribution ShareAlike 3 0 Unported license avail cc able at http creativecommons org licenses by sa 3 0 BY SA Prepared by Version Date MS 1 0 2014 05 11 Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE 1 Safety Instructions Important Please read carefully the following safety instructions before operating the NerdCam3D 3D FPV board camera 1 1 Designated Use The designated use of the Nerd am3D camera is the operation as a First Persion View FPV cam era in radio controlled models e g airplanes helicopters multicopters cars and ships Please note that there may be further legal regulations e g additional observer teacher pupil mode op eration line of sight operation range to be followed for proper use of this product All other uses of the camer
7. entering latency reduced digital video transmission sets may be suited to over come this problem provided the video transmitter is equipped with an analog video input port and the video receiver with a respective HDMI output port for the Rift goggles 5 2 2 On Screen Display Convergence Setting The camera s firmware is prepared to overlay simple status information like battery voltage current consumption and flight time on the stereoscopic video signal in case a commercial ADC module with the PCF5891 chip made by NXP is attached Due to the stereoscopic nature of the video sig nal generated by the camera this OSD information has to be embedded into both left and right video frame concurrently In addition a certain horizontal offset of the displayed information is nec essary to optimally support the user s 3D perception The connection of the supported ADC module to the camera is described extensively in chapter 7 3 The functional principle of adjusting the 3D convergence of the OSD is depicted in Figure 8 TV 909335 1OA 11 6 09 35 10A 11 60 09 35 10A IOV 909535 10A TLV 09 35 10A 116 09 35 10A Figure 8 Influencing 3D convergence of the OSD The respective horizontal offset is achieved by turning the potentiometer This setting can be made while the camera is in operation Field tests with the camera have shown that a slight inward offset is advantageous for best 3D OSD perception Prepared by Version Date Page MS 1 0 2014 05
8. modifications include the attachment of additional headers to the appropriate locations on the camera board and the connection of the camera with other electronic devices CAUTION Consolidated knowledge and appropriate tools necessary Basically a modification of the camera by the end user is not recommended because an improperly conducted intervention may destroy the camera partially or completely Consolidated knowledge special tools and calibration devices may be necessary in order to conduct the modifi cation in a professional manner For these reasons the warranty on the camera becomes void in case of improperly conducted modifications CAUTION Modification of the camera may affect technical conformity Implementing the camera s modification can adversely affect or entirely prevent its con formity with regulatory directives and technical standards Take appropriate measures in order to ensure the conformity of the camera along with the modifications made NOTICE Electrostatic Discharge The camera contains sensitive electronic components that can be destroyed by electro static discharge Handle electronic components with care Implement a suitable grounding for per sons workplace and packing Do not touch any electrically conductive parts when not absolutely necessary 7 1 Replacement of Lenses and Lens Holders The camera is equipped with standard lenses of 3 6mm focal length which are placed and locked in S mount le
9. not suitable for use without protective enclosure Loss of control of the remotely controlled vehicle in conjunc tion with possible personal injury pecuniary damages or property damages Install camera always in a suitable protective enclosure with proper ingress protection level IP Use camera always with copilot or additional observers or spotters Risk of electrostatic discharge ESD Exposed electrical components NOTICE Permanent damage to parts of the camera or the whole camera with improper handling Take appropriate measures to protect the camera against electrostatic discharge 1 4 Residual Risks The use of Head Mounted Displays HMD or video goggles with 3D playback capability is subject to technical risks health risks and possibly other risks Consult and follow the safety instructions of your video goggle HMD to avoid personal injury or damage 1 5 Regulatory Notes 1 5 1 EUROPEAN UNION This device complies with the requirements for Information Technology Equipment ITE of Class B and is therefore suitable for use in residential areas Please find all additional information in rela tion to the fulfillment of regulatory requirements in the accompanying EU Declaration of Conformity on page 22 of this manual 1 5 2 UNITED STATES OF AMERICA Note This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 t
10. power supply with Separated Safety Extra Low Voltage SELV power sources Suitable SELV power sources are all commonly used batteries or accumulators In order to prevent accidental connection with conventional mains power plugs the camera s power supply entry is equipped with terminal blocks that are not matable with such improper power supplies Prepared by Version Date MS 1 0 2014 05 11 Subject to change without notice NerdCams3D Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE 3 Technical Data 3 1 General Features Property Value Comment Product name NerdCam3D Model designation Mk 1 Size 100mm x 34mm xca __ Size in z direction may depend on lenses and 30mm lens holders Mass ca 35g With standard f 3 6mm lenses and lens holders 3 2 Electrical Properties Property Value Comment Ingress Protection IPOO Installation of camera into a suitable protective Marking enclosure recommended Appliance class Il Use only with Separated Safety Extra Low Voltage SELV power sources Power supply 5V DC 5 voltage tolerance acceptable Current consumption ca 340mA Sensor technology CMOS Electronic rolling shutter Sensor resolution 640 x 480 Pixel VGA resolution Pixel dynamic range 70dB SNRmax 39dB Video outputs 1 x 3D CVBS Main video output is 3D CVBS Separate CVBS 2 x CVB
11. the following items e 1 x NerdCam3D board camera optically calibrated with two 3 6mm lenses S mount M12x0 5 thread and set up for immediate use with Zeiss cinemizer video goggles e 1x instruction manual Prepared by Version Date MS 1 0 2014 05 11 Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE Change Log Date Version Comments 2014 05 11 1 0 Initial version TMG lIngenieurb ro UG haftungsbeschr nkt the Manufacturer is disclosing this Document and Intellec tual Property hereinafter the Product to you for the intended use as outlined in chapter 1 1 of this instruc tion manual The Manufacturer expressly disclaims any liability arising out of the application or use of the Product The Manufacturer reserves the right to make changes at any time to the Product as deemed desir able in the sole discretion of the Manufacturer The Manufacturer assumes no obligation to correct any errors contained herein or to advise you of any correction if such be made The Manufacturer will not assume any liability for the accuracy or correctness of any engineering or technical support or assistance provided to you in connection with the Product THE PRODUCT IS PROVIDED AS IS WITH ALL FAULTS AND THE ENTIRE RISK AS TO ITS FUNCTION AND IMPLEMENTATION IS WITH YOU YOU ACKNOWLEDGE AND AGREE THAT YOU
12. to the camera s extension port as described in chapter 7 3 At power up the camera checks for the presence of the ADC by probing for a specific I2C address If the ADC is not found then the OSD remains completely inactive Prepared by Version Date Page MS 1 0 2014 05 11 11 of 22 Subject to change without notice NerdCamsD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE 5 2 1 Interaxial Distance in Cropped Side b The camera firmware includes a specific feature which allows for an adaption of the interaxial dis tance of the generated stereoscopic video signal within useful limits This function is only available for the cropped Side by Side mode of operation under NTSC video norm The following figure ex plains the basic operation principle of the adaption of the interaxial distance Picture center offset inwards Picture center offset outwards Figure 6 Adaption of interaxial distance on cropped SBS video signal The respective horizontal offset is controlled by turning the camera s potentiometer accordingly This setting can be made while the camera is in operation The white cross markings for the image centers in Figure 6 are only for illustration purposes They will not be displayed the actual gener ated 3D video signal Left stop Neutral range Right stop Figure 7 Potentiometer for adaption of interaxial distance The potentiometer is set to middl
13. 11 13 of 22 Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE Left stop Right stop Figure 9 OSD offset control The OSD is available for both squeezed Side by Side as well as Field Sequential mode of opera tion However it is not available for cropped Side by Side mode 5 3 Error Indication and Troubleshooting The mechanical alignment between both optical lenses on the camera may be influenced A adversely by mechanical stress transient shocks hard vibrations etc Consequently the tree dimensional perception of the user wearing a video goggle may suffer for instance by headache or dizziness In this case immediately stop the use of the camera and perform an optical calibration of the lenses as described in chapter 7 1 The camera does not possess additional operation indicators apart from the flashing of the LED and the permanent generation of a video signal During operation the LED must flash in one of the two described sequences If this is not the case the following table may be helpful for troubleshoot ing Symptom Comments Suggestions LED permanently off no video signal Supply voltage too low or absent LED stays off no video signal or video signal is distorted or flickering but power supply voltage present Check BEC exchange BEC and install LC filters optionally Some BEC
14. German statutory warranty applies The warranty is fulfilled at the seller s op tion by repair replacement or withdrawal of the purchase contract The warranty becomes void when the error was caused by third party or by improper installation or commissioning or modification by incorrect or negligent handling or improper transport or ex cessive stress by unsuitable operating resources by inadequate video transmission systems by improper use or operation of the product Please note that the technical realization of the wireless video transmission from the camera to the end user s video receiver or video goggle or head mounted display has a significant impact on the video quality Inappropriate video quality caused by the use of unsuitable video transmission sys tems is therefore no error of the product 9 Limitation of Liability TMG Ingenieurburo UG haftungsbeschrankt THE MANUFACTURER SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES WHATSO EVER INCLUDING BUT NOT LIMITED TO LOSS OF PROFITS REVENUE OR DATA WHETHER DIRECT OR INDIRECT OR COMMERCIAL LOSS FOR BREACH OF ANY EX PRESS OR IMPLIED WARRANTY ON YOUR PRODUCT EVEN IF THE MANUFACTURER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES Some jurisdictions do not allow the exclusion or limitation of special indirect incidental or consequential damages so the above limi tation or exclusion may not apply to You but the remainder of this L
15. HAVE NOT RE LIED ON ANY ORAL OR WRITTEN INFORMATION OR ADVICE WHETHER GIVEN BY THE MANUFAC TRER OR ITS AGENTS OR EMPLOYEES THE MANUFACTRER MAKES NO OTHER WARRANTIES WHETHER EXPRESS IMPLIED OR STATUTORY REGARDING THE PRODUCT INCLUDING ANY WAR RANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE TITLE AND NONIN FRINGEMENT OF THIRD PARTY RIGHTS IN NO EVENT WILL THE MANUFACTRER BE LIABLE FOR ANY CONSEQUENTIAL INDIRECT EXEMPLARY SPECIAL OR INCIDENTAL DAMAGES INCLUDING ANY LOST DATA AND LOST PROFITS ARISING FROM OR RELATING TO YOUR USE OF THE PROD UCT EVEN IF YOU HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES THE TOTAL CU MULATIVE LIABILITY OF THE MANUFACTRER IN CONNECTION WITH YOUR USE OF THE PRODUCT WHETHER IN CONTRACT OR TORT OR OTHERWISE WILL IN NO EVENT EXCEED THE AMOUNT OF FEES PAID BY YOU TO THE MANUFACTRER HEREUNDER FOR USE OF THE PRODUCT YOU AC KNOWLEDGE THAT THE FEES IF ANY REFLECT THE ALLOCATION OF RISK SET FORTH IN THIS AGREEMENT AND THAT THE MANUFACTRER WOULD NOT MAKE AVAILABLE THE PRODUCT TO YOU WITHOUT THESE LIMITATIONS OF LIABILITY The Product is not designed or intended for use in the development of on line control equipment in haz ardous environments requiring fail safe controls such as in the operation of nuclear facilities aircraft naviga tion or communications systems air traffic control life support or weapons systems High Risk Applications The Manufacturer specifically disclaims
16. NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE TS DAIS LY IMSURICHONS TEETE E TAE mbanharedenctanbeaees deh caad tales deask te tamubaiSatacased eunctenes Renae ain 3 1 1 Designated USE Tasnia a a dead hath 8 Aaaa beth data geaaines 3 1 2 Reasonably Foreseeable MISuSC 2 0 6 0 0 2 c0cceeceeeeee ee eeeeeeeeeee essen cecueneceeesadeneeeeeeeenenereendenees 3 1 3 General Safety INSU UCHOM acs ounces agen sssees deka cgeitsos weciehidasauesties ose ueeiente ia ecbedeled davkeedas caueceneder 3 1 4 Residual RISKS y ccuehecccisee chi duacns eee cusvensasquvaa eevaceubuadthatasdeags seed E aaa E aaa Eda a a iaa 4 t5 Regulatory OU Si easi ann tate bea araa ea a EAA a E aep E ARa aaa EEEa aiie 4 23 SSCHIPUOM cise EEA E AAA A I E EEEE O E 5 3 TechiniCal Data EEr E E E E A E E A ewsdaa eesdethsoawaees 6 3 1 General Features cecirerreri men en a ini e a a i a a aat 6 3 2 Electrical Properties a r a aa a E cap a a E A Ee i e a arepe E a anai aine 6 3 3 Optical PO Of OS r a E a a ra a a e r a Aa e A SE A R a aS 7 4 Basic Camera Installation ccccccccccccccccceeeeeeeeeeeeeeeeeeeeeeeeeeseaaaaaaaeaaaeeeeeseeeeseeeeeeeeeaeaaaaeaeeesenaes 7 5 Operation of the CAMera cccccccccceceseeeeeeeeeeeeeeeeeeeeeeeeeeaaaaaaaacaaaadadeceeeeeeeeeeeeeeeaaeaaaaeaeesseeneeesses 9 5 1 Configuration with DIPSS Wit sscessti stk cco eatgcate cas daseen le creche needa dae xc daeaigac do
17. S outputs at each sensor available 3D digital 1 x 3D digital optional output in ITU BT 656 format on request Video norm NTSC PAL Operation in NTSC mode is recommended Due to given physical sensor resolution PAL is displayed with 480 active video lines only Re maining unused active video lines in PAL mode Pey The camera contains provisions to tap the processed digital 3D video signal before digital to analog conversion This function requires the manual attachment of a SMD header not included in scope of delivery on the rear side of the camera board and a different firmware version Please contact us in case of interest in this feature 2 Requires manual installation of header pins not included in scope of delivery at the camera Date 2014 05 11 Version 1 0 Prepared by MS Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE Property Value Comment are displayed as black bars above and below the video image Possible 3D formats Side by Side Side by Side tested with cinemizer cinemizer Field Sequential Plus cinemizer OLED Field Sequential tested with HeadPlay HMD Other video goggles on request 3 3 Optical Properties Property Value Comment Interaxial distance of 64mm According to the average human interpupullary both lenses distance Infrared
18. a are considered improper and exclude all warranties and any liability of TMG Ingenieur b ro UG haftungsbeschrankt for personal injury pecuniary damages or property damages 1 2 Reasonably Foreseeable Misuse The use of the NerdCam3D camera as a toy or as medical life support or life sustaining equipment or as a safety device for monitoring surveillance of persons or objects or as a fail safe sensor for operation of nuclear facilities aircraft navigation or communication systems or as part of a means for air traffic control or as part of weapons systems is improper and excludes any liability of TMG Ingenieurb ro UG haftungsbeschrankt for personal injury property damage or pecuniary dam ages 1 3 General Safety Instruction Please note the following general safety information before and during use of the camera Risk of electric shock Risk of fire Exposed electrical components DAN G E R Danger of life through electric shock or fire outbreak Operate camera only with Separated Safety Extra Low Volt age SELV power sources Exposed electrical components Burns from hot electronic components Operate camera only with 5V DC Separated Safety Extra Low Voltage SELV power sources Prepared by Version Date MS 1 0 2014 05 11 Subject to change without notice NerdCamsD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE Risk of failure of the camera Camera
19. e eeeebte ieee 10 5 2 Configuration with Potentiometer 2 c ecak he in ot dn Heer ee A 11 5 3 Error Indication and Troubleshooting sq icici scsteenciieaccencctcecenede oti sdejsccedbceeccctvegiadenie ble le viveles 14 6 Maintenance and Repaiir cccccccccccccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeaaaaaaaeeaaeeeeeeeeeeesaeeeeesaaneeeesaeeeeesees 15 FsIMOGIIGAUONS AE EEE E AE AETA E T ET 15 7 1 Replacement of Lenses and Lens HolderS cccccccccceeeeeeeeeeeeeeeeeeeaeeeeeeaeeeeeeeeeeeeeeaes 15 7 2 Attachment of Headers Connection Overview ccceeeeeeeeeeeeeeeeeeaeaeeaeeeeeeeeeeseaees 17 7 3 Optional On Screen Display OSD 0cc cccccsedescceseececcceeneeccecen ences Oopntvenendessveacbeaeceneenenete 20 8 Warranty iiser castes dseen eet ace ak diate EEEa an ees de aK E AAA a a ior E aar ane teat 21 9 kimitation OF ENA UINY ikrar 32s ie Socaee ad ca aa aa eaaa a dalteats ddan i eaa aaa a sasa 21 10 Disposal and Environmental Protection cccccceeeeeeeeeeeeeeeaaaaeaeaeeeeeeeeeeeeeeeeeeeeaeeeeeeeaaaes 21 11 Manufacturer Information and Technical SUPPOMt cccccececcecccceeceeeeeeeeeeeeeeeeeeeeeeeeeeseesaaaaees 21 List of Abbreviations ESD Electrostatic Discharge CVBS Color Video Blanking Signal FPGA Field Programmable Gate Array FPV First Person View OSD On Screen Display SELV Separated Safety Extra Low Voltage Scope of Delivery The scope of delivery comprises
20. e position as default Around this position there is a small neutral range in which turning the potentiometer does not have an influence on the interaxial offset If the potentiometer is turned further the respective offset is realized depending on the sense of rotation Prepared by Version Date Page MS 1 0 2014 05 11 12 of 22 Subject to change without notice NerdCamsD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE In particular the inwards offset of the image centers depicted in Figure 6 is necessary in case the camera is used for operation with the Oculus Rift DevKit as well as successor models video gog gle Please note that for proper operation with these goggles special fish eye lenses with focal dis tances around 1mm are necessary in order to realize a natural three dimensional perception Larger focal distances are possible in general however they will introduce a zoom effect on the perceived image Due to the fact that the video goggles made by Oculus VR do not have a dedicated AV input port for analog video so far a separate AV HDMI converter may be required between analog video re ceiver and video goggle This converter may have further negative influence on the quality of the video signal for instance by insufficient conversion of aspect ratio 4 3 to 16 9 blue screen effect at low video signal strength or by introducing additional signal latency Currently market
21. eceiver s power supply The connector pins for the power supply of the camera are labeled OV for the ground input and 5 V for DC voltage input With firmware version 1 20w The camera is judged by its technical properties also expected to be compatible with the following video goggles EVG920V EVG920E Vuzix Wrap 920 Vuzix Wrap 1200 Dominator HD However these goggles were not tested explicitly BEC Battery Eliminator Circuit http en wikipedia org wiki Battery_eliminator_circuit RO oa Prepared by Version Date MS 1 0 2014 05 11 Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE GN 4 Antenna SELV Source VCC Transmitter CINID Video Filter 5V Cars Exposure ry m Window l peo ace Position zs z J lale a alee es ee eee es NerdCam3D no ni Made in Germany e ejm Mk 1 aa CO w ae A ejaj t tissing esat PERRRH a ppi Figure 1 Basic wiring diagram of the camera An optional Reset push button can be connected which upon actuation pulls the nRESET port from 3 3V to Ground If the push button is released again an internal pull up resistor restores the 3 3V signal level at the nRESET port This input signal controls the FPGA s reconfiguration which starts when the push button is released With this feat
22. es Chapter 7 3 Observe 3 3V bus level Camera contains a 1 5kO pull up resistor to 3 3V GND Electrical Ground 3 3V Power supply for external devices Chapter 7 3 Maximum sourcing capacity ca 500mA Prepared by Version Date Page MS 1 0 2014 05 11 18 of 22 Subject to change without notice NerdCamsD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE X4 Camera Main Port GND Electrical Ground Chapter 4 CVBS CVBS video signal for 750hm coaxial Chapter 4 DC coupled video output with additional video filter cable OV Primary power supply input for electri Chapter 4 Use only with Separated Safety Extra Low Voltage cal ground SELV power sources 5V Primary power supply input for 5V Chapter 4 Use only with Separated Safety Extra Low Voltage DC SELV power sources X5 Optional digital video signal output port CLK Clock output for digital BT 656 video signal Foot note 1 The digital video output port is not activated by de GND Electrical ground fault Please contact us in case of interest in this fea on page ture Logic level is 3 3V VO V7 Bit O to bit 7 of the BT 656 video sig i Ta nal o Optional po O D q pia GND Electrical ground Power supply for 16x2 LCD display VCC 3 3V DC power supply for external Power supply for 16x2 LCD display devices Maximum sourcing capacity ca 5 00
23. filter Build in Camera lenses equipped with IR cut filter Focal distance 3 6mm Other focal distances on request 4 Basic Camera Installation The camera presents on its rear side a number of ports of which only a few are necessary for nor mal operation A suitable minimum wiring for FPV operation is illustrated in Figure 1 The power supply and the 3D video signal output are accessible via terminal blocks For all other optional in puts or outputs pin headers with 2 54mm 0 1 pitch not included in scope of delivery are re quired Please follow the instructions in chapter 7 before modifying the camera For the connection between camera output and transmitter input a small 75Q coaxial cable is recommended The outer conductor of this cable must be connected to GND on both ends Otherwise the quality of the transmitted analog video signal may be deteriorated The SELV power source supplies the video transmitter not included in scope of delivery and a voltage converter BEC not included in scope of delivery The output of the BEC is connected to the camera via an optional LC filter The necessity of this filter depends highly on the electrical properties of the BEC With linear voltage regulators the LC filter should not be necessary Switched voltage regulators may require such a filter Due to the moderate power consumption of 340mA the camera can also be a supplied using an already existing power source for example the ESC s BEC or the r
24. his device must accept any interference received including interference that may cause undesired operation Note Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment Prepared by Version Date MS 1 0 2014 05 11 Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE Note This equipment has been tested and found to comply with the limits for a Class B digital de vice pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable pro tection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the in structions may cause harmful interference to radio communications However there is no guaran tee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver i
25. imited Warranty shall remain in full force and effect 10 Disposal and Environmental Protection must not be disposed together with usual household waste Therefore we kindly ask you to support us with your active contribution to the conservation of resources and the protec E tion of the environment by disposing this device at the official EEE collection points 11 Manufacturer Information and Technical Support This camera was developed for you by T Electrical and Electronic Equipment EEE can be recycled when no longer needed and TMG Ingenieurbiro UG haftungsbeschrankt Sales tax ID Romerstrake 14 WEEE ID 89077 Ulm Website www themissinggear eu GERMANY Contact support themissinggear eu Please feel free to contact us using the above mentioned e mail address for technical assistance or other questions about the product Prepared by Version Date Page MS 1 0 2014 05 11 21 of 22 Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE EU Declaration of Conformity We TMG Ingenieurburo UG haftungsbeschrankt RomerstraBe 14 89077 Ulm GERMANY declare under our sole responsibility that the product Product name NerdCam3D Trade name The Missing Gear Model Mk 1 to which this declaration relates is in conformity with the following directives and harmonized standards
26. itch position up OFF Switch position down ON Figure 4 Location of the DIP switch on the camera The technical meaning of the four switches S1 to S4 is explained in the following table Switch OFF PAL S1 Video norm Switch ON NTSC Switch OFF Field Sequential FS S2 3D video format l Switch ON Side by Side SBS S Cross hair for Switch OFF Cross hair enabled optical calibration Switch ON Cross hair disabled When S2 FS When S2 SBS S4 Option switch Switch OFF Normal operation Squeezed SBS Switch ON Video fields swapped Cropped SBS The default position of the DIP switch is S1 bis S3 switch ON S4 switch OFF The camera can be reset simply by interrupting the power supply or by forcing a reconfiguration of the FPGA pull pin nRESET to ground and release see Figure 1 Basically the camera can generate two different stereoscopic video formats Field Sequential 3D and Side by Side 3D In addition the camera is capable of rendering two different variants of the Side by Side 3D mode This feature is controlled via the option switch S4 These two variants are shown in Figure 5 6 Vgl http stackoverflow com questions 3445924 what is field sequential 3d Prepared by Version Date Page MS 1 0 2014 05 11 10 of 22 Subject to change without notice NerdCamsD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE
27. mA DBG Signal output for LCD display UART port for 16x2 LCD display GPIO Not connected Without external Pull Up resistor Not activated by de fault X7 Programming port VCC Secondary power supply input for Only for temporary supply of the camera via the JTAG 5V DC A programming adapter Port X4 5V must not be used in parallel with this power supply port TDO JTAG port Test Data Out 3 3V logic level TMS JTAG port Test Mode Select 3 3V logic level TDI JTAG port Test Data In 3 3V logic level GND Electrical ground Only for temporary supply of the camera via the JTAG programming adapter TCK JTAG port Test Clock 3 3V logic level with AC termination 7 Suitable 16x2 LCD display modules e g httos Awww sparkfun com products 9067 Serial Enabled 16x2 LCD White on Black 3 3V must have a serial UART input port at 3 3V logic level The camera is configured by default to output at port X6 the firmware version 2 digits and the so called TracelD of the FPGA 14 digits Each camera comprises a unique and unchangeable identification number Prepared by Version Date Page MS 1 0 2014 05 11 19 of 22 Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE 7 3 Optional On Screen Display OSD For the OSD an analog to digital converter ADC is required which converts the a
28. mple a drawing on a sheet of paper with two cross hairs and other symbols for orientation However the marking must meet the following two conditions 1 The horizontal distance of the cross hairs on the target marking must be 64mm the value of the interaxial distance between the two image sensors of the camera 2 The specified height h must be identical to the corresponding height h on the camera board For example if the camera is mounted on a pedestal for mechanical fixing this addi tional height of the pedestal is to be taken into account when calculating the height h on the target marking For the calibration procedure the camera is mounted into the calibration device and the camera s DIP switch S3 is switched to OFF position in order to activate the calibration cross hair overlay symbols Now there are two different groups of cross hairs visible in the generated video signal the target marking see Figure 10 and the statically overlaid cross hair symbols generated by the camera The aim of the calibration procedure is to align the centers of the facing cross hair pairs to each other by mechanical movement of the lens holders During the calibration the camera should tun in compressed side by side 3D mode Figure 11 Prepared by Version Date Page MS 1 0 2014 05 11 16 of 22 Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE
29. nalog signals of the utilized sensors into digital values that the camera can process The camera s primary I2C bus running at 3 3V logic level is the interface between the converter and camera The following figure shows a Suitable wiring The power supply of the ADC must be realized through the camera such that the logic level at the 12C bus connector pins is at 3 3V PCF8591 AD DA Converter Module Flytron Ultralight Current Sensor Remove jumpers V_in OV 25 5V 100A Sensor R1 150k R2 390k ene LEENE i laek g petit a o g T E aar qE a Mk 1 50A Sensor R1 39k R2 330k tie Missing ar Figure 13 Connection of ADC and power current sensors The PCF8591 AD DA Converter Module is an inexpensive and completely assembled solution However other ADC modules can be used as well as long as they are based on the PCF8591 chip In this case make sure that the hexadecimal write read address of the chip is configured to 0x90 0x91 Only these addresses are tested for accessibility when the camera powers up In case the ADC is not detected with the above mentioned I2C addresses the OSD is disabled automati cally Prepared by Version Date Page MS 1 0 2014 05 11 20 of 22 Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE For this product the
30. ns holders These lens holders are also suitable to carry alternative lenses with M12x0 5 thread The camera is also designed for attachment of C mount lens holders The board of the camera provides slot holes for various lens holders with 18mm to 23mm mounting hole dis tance After changing the lenses or lens holders a mechanical calibration is necessary The purpose of this calibration is to realize an exact alignment of the lenses in relation to each other and in relation to the position of each image sensor This optical calibration is ideally performed using an optical Prepared by Version Date Page MS 1 0 2014 05 11 15 of 22 Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE table with the necessary accessories However acceptable and mostly sufficient results can also be achieved with much simpler means The basic structure of such a calibration device is shown in Figure 10 id ca 50 cm gt 7 Ae B Bii Figure 10 Basic optical calibration device The calibration device consists of a flat base plate on which the camera and the cross hair target marking are fixed on opposite sides The camera and the target marking must be perpendicular to the base plate The center points of camera board and target must be facing as precisely as possi ble The target marking may be for exa
31. s connected e Consult the dealer or an experienced radio TV technician for help This Class B digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe B est conforme a la norme NMB 003 du Canada 2 Description The Nerd am3p is a unique board camera which creates a stereoscopic analog video signal Unlike other 3D board cameras the Nerd am3D supports both Field Sequential 3D and Side by Side 3D video in NTSC as well as in PAL This feature makes the camera compatible with a wide variety of legacy and state of the art video goggles or head mounted displays The video signal created by the camera can be fed either directly into the video goggle s AV port or through single channel wireless video transmission gear Therefore this 3D camera is perfectly suited for all First Person View FPV applications Chapter 3 2 summarizes the currently supported video goggles The camera was designed to be compliant with relevant harmonized technical standards without a specific protective enclosure This decision gives the end user the utmost level of freedom for final integration into a carrying platform However it is in the end users own responsibility to take care for a safe and rigid fixation and a suitable protection of the camera against adverse mechanical or electrostatic or environmental conditions For these reasons the utilization of a suitable protective enclosure is highly recommended The camera requires a
32. struction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE Figure 12 Overview of camera ports and connectors The following table shows the respective meaning and function of the camera ports together with relevant technical remarks and comments X1 Optional output for analog video signal of the left camera sensor CVBS_L CVBS video signal for 75Ohm coaxial DC coupled video output directly from the sensor but cable with additional video filter Not OSD capable GND Electrical ground X2 Optional output for analog video signal of the right camera sensor CVBS_R CVBS video signal for 750hm coaxial DC coupled video output directly from the sensor but cable with additional video filter Not OSD capable GND Electrical ground X3 Camera extension port nCTRL Not connected With 47kQ pull up resistor to 3 3V Input may be con nected to GND or may be left floating AE_HWP Auto Exposure Half Window Position Chapter 5 With 47kO pull up resistor to 3 3V Input may be con nected to GND or may be left floating nNRESET Reset and reconfiguration of camera Chapter 4 With 47kO pull up resistor to 3 3V Input may be con nected to GND or may be left floating GND Electrical ground SDA C data line for external devices Chapter 7 3 Observe 3 3V bus level Camera contains a 1 5kO pull up resistor to 3 3V SCL C clock line for external devic
33. ure the camera can be reset either di rectly or remotely by the remote control unit of the RC vehicle In an analogous way the two possible positions of the auto exposure measurement window of both image sensors can be influenced with a second directly or remotely controlled switch The actual meaning of this measurement window is shown in Figure 3 Please note chapter 7 in both cases before you attach suitable push buttons or switches to the camera Prepared by Version Date MS 1 0 2014 05 11 Subject to change without notice NerdCams3bD Instruction Manual IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE 5 Operation of the Camera The camera starts to operate within a few milliseconds after the power supply is present The mode of operation is indicated by a specific flashing sequence of the status LED located on the front side of the camera board Figure 2 m m LED on LED off 0 5s 3 0s Figure 2 Position of status LED and optical indication for exposure mode 1 The flashing sequence shown in Figure 2 indicates the default exposure mode 1 In this mode the size of the image sensor s auto exposure measurement window is limited to the lower half of the sensor s active region Figure 3 This is an approved method for operation of the camera near ground level where the sensor s exposure control focuses on the illumination conditions of the ground and not on those of the sky
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