R&S QAR Series User Manual Download Page 82

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Remote Control - OPC

R&S

QAR

User Manual 1178.7200.02 ─ 04

Figure 7-3: Radome measurements variables

Figure 7-4: Bumper measurements variables

7.1.1

From PLC Communication

The following table displays all variables written by the PLC and read by the R&S

QAR.

All variable names have the prefix:

CompactLogix.Compact Logix_PLC.Global.QAR.FromPLC

OPC Variables

Summary of Contents for QAR Series

Page 1: ...R S QAR Quality Automotive Radome Tester User Manual User Manual Version 04 1178720002 02...

Page 2: ...eflector 1336 5476 02 R S QAR K10 Radome measurements 1336 5501 02 R S QAR K60 Bumper measurements 1336 5482 02 R S QAR K100 Radar positioning measurements 1336 5518 02 The document corresponds to the...

Page 3: ...Floor 17 4 2 2 Installing the R S QAR on the Platform R S QAR Z20 19 4 2 3 Installing the Radome Measurement Elements 21 4 2 4 Installing the Bumper Measurement Elements 23 4 2 5 Installing the R S QA...

Page 4: ...figuration 59 5 3 5 Verification 63 6 Remote Control SCPI 66 6 1 Remote Control Interface and Protocol 66 6 2 Remote Commands 67 6 2 1 Common Commands 67 6 2 2 Radome Measurements 72 6 2 3 Bumper Meas...

Page 5: ...Contents R S QAR 5 User Manual 1178 7200 02 04 8 2 Software Update 92 Glossary 93 Index 95...

Page 6: ...Contents R S QAR 6 User Manual 1178 7200 02 04...

Page 7: ...physical injuries when it falls or tips over The R S QAR must be installed and set up by trained staff When you carry lift or move the R S QAR use the carrying handles on the back side of the R S QAR...

Page 8: ...an approved grounded outlet For components that need an external AC adapter only use the one that is deliv ered with the components Only use intact cables and route them carefully so that they cannot...

Page 9: ...t and repair software update and troubleshooting Safety instructions Contains safety instructions operating conditions and further important information The printed safety instructions are part of the...

Page 10: ...xtends the functionality of the R S QAR to measure the transmission loss of a radome Additional equipment like an optional platform R S QAR Z20 on which you can mount the R S QAR or a table for the de...

Page 11: ...main power switch 2 Ground terminal 3 Transmitter module control 4 Power supply for a monitor including 2 fuses 5 LAN interface 6 Display connector DVI 7 USB ports 4x 8 Power button 3 1 Main Power Su...

Page 12: ...you need a green yellow ground wire with a cross section of at least 4 mm2 in addition to the main protective earthing terminal The ground wire must be connected permanently to the ground terminal on...

Page 13: ...ure ments are located on the back of the R S QAR Transmitter control The External Transmitter Control connector controls the transmitter module RF out The RF Out connector SMA outputs the signal for t...

Page 14: ...of the same type 1 A designation EN 60127 2 5 T1H250V are located above the AC outlet In case of defects check both fuses Replacing a fuse 1 Disconnect the R S QAR from the power supply 2 Open the fus...

Page 15: ...ck side The two top ports are USB 3 0 type A The two bottom ports are USB 2 0 type A They offer multiple uses Connection of a keyboard to operate the R S QAR Connection of a mouse to operate the R S Q...

Page 16: ...hipped 4 2 Installing the R S QAR Using the R S QAR requires you to install it firmly to some kind of support fixture in order to prevent it from toppling over You can install the R S QAR in different...

Page 17: ...not use the platform the R S QAR must be attached to the floor Required tools Allen wrench size 5 for screws ISO 10642 M8x20 Allen wrench size 6 for screws ISO 4762 M8x40 Power drill Anchor bolts siz...

Page 18: ...back side 2 Screw the two supports to the side of the R S QAR with two socket head screws ISO 10642 M8x20 Allen wrench size 5 on each side of the R S QAR see Fig ure 4 2 Figure 4 2 R S QAR installati...

Page 19: ...Installing the R S QAR on the Platform R S QAR Z20 Required tools Allen wrench size 5 for screws ISO 10642 M8x20 Allen wrench size 6 for screws ISO 4762 M8x40 Allen wrench size 10 for screws ISO 4762...

Page 20: ...e 4 4 Platform alignment Mounting the R S QAR When the platform is in place you can mount the R S QAR on the platform Whenever you lift move or carry the R S QAR use the handles on its back side 1 Scr...

Page 21: ...Support installation top view 4 2 3 Installing the Radome Measurement Elements Radome measurements require the DUT mounting table and the transmitter module Required tools Allen wrench size 5 Torx wr...

Page 22: ...drill holes are indicated in Figure 4 1 2 Screw the table to the floor with four anchor bolts size 6 mm for example a Fischer FAZ II 6 The anchor bolts are not included in the delivery Attaching the t...

Page 23: ...reflector The reference reflector has to be placed at a specific height and at specific distances from the R S QAR as shown in Figure 4 10 and Figure 4 9 There is a tolerance of 2mm lateral distance a...

Page 24: ...AR front by using for example a spirit level Check the lateral distance by performing the verification described in Chapter 5 2 5 Verification on page 51 2 Screw the reference reflector to the stand u...

Page 25: ...m area 4 Tighten the feet with the check nuts using the open end wrench Figure 4 11 Platform alignment Mounting the R S QAR When the platform is in place you can mount the R S QAR on the platform When...

Page 26: ...ocket head screws with a size 10 secure each support The mounting holes in the platform define the position of the supports Note Insert a washer between screw and support as shown in Figure 4 12 4 Tig...

Page 27: ...d 1920 x 1200 Lower resolutions can lead to an incorrect display of the mea surement data 2 Connect a keyboard and a mouse to two of the USB ports 3 Optional Establish a connection to your LAN via the...

Page 28: ...ware does not start automatically start it manually double clicking the shortcut on the Windows desktop You can now use the R S QAR See Chapter 3 2 Power Button on page 12 for more information about t...

Page 29: ...s For details and recommendations see the following Rohde Schwarz white paper 1DC01 Malware Protection Windows 7 4 5 2 Service Packs and Updates Microsoft regularly creates security updates and other...

Page 30: ...2 Bumper Measurements on page 44 Chapter 5 3 Radar Positioning Measurements on page 53 Warm up time Let the R S QAR warm up for at least 90 minutes before using it 5 1 Radome Measurements The typical...

Page 31: ...tly off center to the center of the R S QAR as indicated in Figure 5 1 141 mm Test setup with platform and DUT mounting table When you use the optional platform and DUT mounting table the test setup i...

Page 32: ...module Numbers without brackets dimensions in mm Numbers in brackets dimensions in inch 5 1 2 Graphical User Interface The graphical user interface GUI contains several elements 1 2 3 4 5 6 7 8 9 11...

Page 33: ...ments are dis played Mean reflection Standard deviation Optional One way mean attenuation within frequency range 76 GHz to 77 GHz Optional One way mean attenuation within frequency range 76 GHz to 81...

Page 34: ...39 for details Ctrl Q Closes the application F3 Initiates a reflection normalization F4 Initiates a transmission normalization F5 Initiates a measurement 5 1 3 Measurements The R S QAR provides severa...

Page 35: ...m If you have the verification objects and it fits your setup you can use the plate labeled E to normalize the reflection 1 Place the plate at the same location where you are going to mount the DUT fo...

Page 36: ...th the received signals leading to effects as described in application note 1MA267 Areas with a high reflectivity can have various causes for example material defects undesired interaction between sev...

Page 37: ...ses 64 discrete frequency points to cover a selected frequency span between 72 GHz and 82 GHz This allows for an exact evaluation of the DUT s transmission frequency response The frequency response yi...

Page 38: ...QAR reevaluates the mean reflection and the standard deviation 4 Optional Export the evaluation mask a Select Options Reflection Mask b Select Save Bitmap to save the shape and location of the mask as...

Page 39: ...creates a folder that contains the measure ment data 3 Select Autosave to use the auto save functionality When you are using the autosave feature the R S QAR automatically stores the results after ea...

Page 40: ...e in the Windows 7 Embedded device manager Note that the webcam feature of the R S QAR always uses the first imaging device in the list to take pictures 1 Select Options Recording 2 Select Save Webcam...

Page 41: ...S QAR Z40 Verification objects 1 x metal plate 1 x metal plate with cut outs 3 x plastic plate with different thicknesses Frame for verification objects Allen wrench size 5 Handling the verification o...

Page 42: ...he verification process consists of five consecutive measurements with the verifica tion objects square plates The verification objects are labeled A to E 1 Select verification mode in the application...

Page 43: ...in front of the R S QAR except for the table and the frame b Select Normalize Transmission to initiate a free space measurement The resulting trace should be a straight line at approximately 0 dB att...

Page 44: ...ins and cross the bumper back The received signals are measured and compared to the free space measurement normalization to obtain the transmission loss or two way attenuation caused by the bumper in...

Page 45: ...malization on page 48 3 Place the bumper to measure in the right position as described in Chapter 5 2 1 Test Setup on page 45 4 Measure the attenuation as described in Chapter 5 2 3 2 Attenuation Meas...

Page 46: ...Shows the millimeter wave image of the data collected from the reference reflector pins during the scan The image indicates the effects of the presence of the object and enables you to evalu ate immed...

Page 47: ...Normalization on page 48 System messages Shows various status messages of the system like a missing normalization or the remaining warm up time The full warm up time is 90 minutes Menu bar The menu ba...

Page 48: ...how to run the measurement see Chapter 5 2 3 2 Attenuation Measurement on page 49 Normalization 48 Attenuation Measurement 49 5 2 3 1 Normalization Normalization is a measurement done in the free spac...

Page 49: ...ore measur ing 5 2 4 Configuration The R S QAR provides several tools to configure the radome measurements Managing measurement results You can export the measurement data for example to store it on a...

Page 50: ...t least the raw 2D imaging data result_QARQT mat The data package Statistics Pictures only contains the images png and statistics numerical results etc and is therefore not sufficient to restore resul...

Page 51: ...minutes before you can start verification Required equipment All required equipment is included in the delivery of the R S QAR Z41 Verification objects 1 x metal frame 3 x plastic plate with differen...

Page 52: ...n plates The plates are labeled A to C Each plate has a sticker with an arrow indicating the correct orientation and the expected attenuation value with acceptable error margin 1 Normalize the measure...

Page 53: ...out the functionality of the software see Chapter 5 3 2 Graphical User Interface on page 55 2 Park the car in front of R S QAR See Chapter 5 3 1 Test Setup on page 53 3 Measure the DUT See Chapter 5 3...

Page 54: ...s on the location of the radar mod ule relative to the radome s location on the car The distance between R S QAR and radar module is between 60 cm and 80 cm The distance from floor to radar module is...

Page 55: ...R 55 User Manual 1178 7200 02 04 Figure 5 11 Test setup for radar positioning measurements view from above 5 3 2 Graphical User Interface The graphical user interface GUI contains several elements Rad...

Page 56: ...Result display graphic and numeric Graphic and numeric measurement results For more information see Chapter 5 3 3 Measurement on page 57 Settings and control buttons Several settings and buttons allow...

Page 57: ...on the temperature icon to view the temperature of the last few hours The connection state Online successful boot up of the connected hardware Keyboard shortcuts The following keyboard shortcuts are s...

Page 58: ...contour corresponds to the theoretical radar beam intersection The red contour corresponds to the measured radar beam intersection The yellow lines correspond to the measured distances You can display...

Page 59: ...position on the longitudinal axis The angle values indicate that the DUT is tilted by a certain amount in the corre sponding direction For example an x angle of 5 indicates that the DUT is tilted sli...

Page 60: ...car type configuration provides information about the car the location of the radar sensor and the measurement points positions The configuration is based on the CAD data of the car In stand alone wor...

Page 61: ...status red traffic light Difference limit for the verification set Only applicable when using the verification sets Maximal difference between theoretical and measured position If the measured differe...

Page 62: ...l result 5 Select the data you want to save from the Save Option dropdown menu A measurement dataset contains the following files Result Stores the numeric results in a txt file Result and Volume Cont...

Page 63: ...f a series of measurements with standardized DUTs which are located at a fix distance from the R S QAR If verification fails validate the verification setup If verification still fails several times i...

Page 64: ...nt edge of the mounting frame is 65 cm Figure 5 14 Verification setup side view The verification object has an offset of 14 5 cm to the right of the center of the R S QAR Figure 5 15 Verification setu...

Page 65: ...ication objects Verification passes if the measurement results for all three objects are within the limits measurement result is OK 5 Optional If necessary change the verification limits Options Alarm...

Page 66: ...trument control and the VISA program library must be installed on the PC controller IP address Only the IP address or a valid DNS host name is required to set up the connection The host address is par...

Page 67: ...ciated network services are preconfigured TCP IP ensures connection oriented communication where the order of the exchanged messages is adhered to and interrupted links are identified With this proto...

Page 68: ...ent RESult DIRectory Setting parameters Description String that is the basis of the folder name in which the R S QAR saves the results In addition to the folder description the R S QAR adds a time sta...

Page 69: ...de scanner RST OFF Example Turn on barcode scanner MEAS RES BCS USE MEASurement RESult DIRectory Directory This command defines the folder in which the measurement results are stored Parameters Direct...

Page 70: ...ing Parameters Data 0 Stores statistics and pictures 1 Stores statistics pictures and data 2 Stores statistics pictures data and volume RST 1 Example Select data to be stored MEAS RES SAVE WHAT 0 6 2...

Page 71: ...lts and repeat the measurement 111 Measurement has failed Dismiss measurement results and repeat the measurement SYSTem ERRor MESSage This command queries system errors Return values ErrorMessage Stri...

Page 72: ...Check log files for initialization errors SYSTem TEMPerature This command queries the system temperature Return values Temperature Default unit Celsius Example Query system temperature SYST TEMP Usage...

Page 73: ...lection measurement MEAS REFL NORM STAR Usage Event MEASurement REFLection STATistics n MEAN This command queries the mean reflection Prerequisites for this command Reflection measurement results must...

Page 74: ...lection measurement results Prerequisites for this command Reflection measurement results must be available Suffix n 1 Result in dB 2 Result in 3 Linear result Return values Unit String containing the...

Page 75: ...nly MEASurement TRANsmission BAND n STATistics m UNIT This command queries the unit of a result Suffix n 1 First evaluated frequency band 2 Second evaluated frequency band m 1 Logarithmic result 2 Lin...

Page 76: ...asurement We recommend to define a timeout of at least 10 seconds to allow for the measure ment to finish Example Normalize transmission measurement MEAS TRAN NORM STAR Usage Event MEASurement TRANsmi...

Page 77: ...he file name must have the json file extension Example Import mask coordinates MEAS REFL MASK IMP c masks mymask json Usage Setting only MEASurement REFLection MASK LOAD FileName This command imports...

Page 78: ...e Query mean attenuation MEAS STAR MEAS ATT MEAN Usage Query only MEASurement ATTenuation STD This command queries the standard deviation of the attenuation measurement Prerequisites for this command...

Page 79: ...rement Return values State 0 Measurement is normalized 1 Measurement is not normalized In that case you should nor malize the measurement before starting it Example Query normalization state MEAS NORM...

Page 80: ...ueries the threshold value of a bumper type Parameters Threshold Threshold value in dB Parameters for setting and query BumperType String containing the bumper type name Example Query the threshold va...

Page 81: ...to an OPC server that hosts the variables used for communication with the PLC OPC server R S QAR FromPLC ToPLC PLC Figure 7 1 OPC communication between R S QAR and PLC 7 1 OPC Variables This chapter d...

Page 82: ...easurements variables Figure 7 4 Bumper measurements variables 7 1 1 From PLC Communication The following table displays all variables written by the PLC and read by the R S QAR All variable names hav...

Page 83: ...eflec tion Window Width Double Reflection statistics window width RadomeMeasurement Reflec tion Window Height Double Reflection statistics window height RadomeMeasurement Reflec tion Window XCenter Do...

Page 84: ...on units i e dB Linear RadomeMeasurement Timestamp String Current measurement timestamp RadomeMeasurement Transmis sion Band_ n Statis tics_ m Mean Float Transmission mean value RadomeMeasurement Tran...

Page 85: ...S QAR device is initializing State Malfunction Bool True if the R S QAR failed the diagnostics test State Processing Bool True if the R S QAR is analyzing a measurement State Ready_ToMeasure Bool Tru...

Page 86: ...tate Ready_ToMeasure You can now trigger a measurement If errors occur during initialization the next state is State Malfunction It indicates that the device needs repair or replacement 3 After data a...

Page 87: ...nitialization fails Results_Received true Figure 7 5 R S QAR states 7 3 Timing Diagram The timing of communication for measurements and diagnostics between the PLC and the R S QAR is identical After t...

Page 88: ...State Processing State Results_Ready Figure 7 6 Timing diagram for measurements and diagnostics 7 4 Error Handling Errors can occur during R S QAR initialization or while performing measurements They...

Page 89: ...opmode No measurement configurations present Restore C Program Files x86 Rohde Schwarz QAROPCClientRadome QARMeasurementConfigs or C Program Files x86 Rohde Schwarz QAROPCClientBumper QARMeasurementCo...

Page 90: ...esults are invalid Ignore measurement results Repeat the measurement 111 Measurement has failed Measurement has failed Ignore measurement results Repeat the measurement 113 Invalid result path Path_Re...

Page 91: ...AR with a lint free duster In the case of stubborn dirt you can also wipe the frame and rear side with a damp rag 3 Clean the platform using a broom or vacuum cleaner Remove any stubborn dirt using a...

Page 92: ...not get wet Cleaning the reference reflector R S QAR Z60 Clean the reference reflector carefully with a dry and soft lint free dust cloth If there are bigger dirt particles between the pins pick them...

Page 93: ...to configure control and run measurements with the R S QAR The software is installed on the R S QAR Mounting table Pedestal that holds the DUT and the transmitter module Available as accessory R S QA...

Page 94: ...ransmission loss Measure of attenuation of the DUT over a certain frequency range Transmission loss measurements require the optional transmitter module Transmitter module Device required to measure t...

Page 95: ...29 Operation 30 Bumper measurements 44 Radar positioning measurement 53 Radome measurements 30 34 Overview 10 P Packaging 16 Power button 12 Protective ground connection 12 R Radar positioning limits...

Page 96: ...1178 7200 02 04 User interface language 61 User interface mode 59 V Verification 63 Bumper measurements 51 Radome measurements 40 Verification results 64 Virus protection 29 W Webcam 40 50 Windows 7...

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