Leica HDS Check & Adjust – User Manual - Meet
Contents
1. when it has to be right Seica Geosystems Leica HDS Check amp Adjust User Manual Contents Fi OVET W e E E E E EE E EE 2 2 Access to Check amp Adjust Menu Ju sssssssssnnnrrsncsnnnnnnnnnnnnnnnnnnnnsnnnaaasaaannnnnnsnnnnnnnnnsnsssaaananaaaaannnnnnes 2 3 Check Angular Parai te ssssccccccsssccccccnnnnnsnnnnnnnsnccccsnnsnenennnnnsnnnnnaaaansaaaacasnnsseensnnnnnsssnssnanaanes 3 3 1 Measurement Configuration cccccccccccccccceccseeeeeeeeeaeeeeeeeeseeeeeeeesseaseeeeesseaeeeeessaaseeeessaeeeeeessaaaes 3 3 2 Basic WOrkFlOW 0 00 00 ccc ccccceccecceeceeceeceeceeceeeeeeneeaeeneeneeneeceeseseesesesaesaesaeeneeneeneeneseenesaeeneeneeneeneesaesaes 4 3 3 Detailed Workflow 0 0 0 cccccccceccecceeceeeeeeeeeeeeneeneeeeeeeeseeceeseesaesaesaesaeeneeaesesaesesaesaeeneeneeneeneeneesees 5 d Sert Rang Farame lars sso E mse ede eet eee 12 5 Check TIt Compensa l Or sirarik ens segs ce tees cas AEAN EE AE ee states ee Dees snes ose nes EAEEREN ERER 13 6 Current Calibration vacuuseccenecceneccnnuneneenenesenucnenuseaneseaeesenecsenunsenuseaneseaueseausseauseanseneeseneesennsseensenens 13 Leica Geosystems AG Heinrich Wild Strasse CH 9435 Heerbrugg Switzerland Leica HDS Check amp Adjust User Manual Version 1 0 www leica geosystems com 1 Overview Leica Geosystems 3D laser scanners are manufactured assembled and adjusted to the best pos sible quality Nevertheless extreme temperature changes and hard shocks can cause deviations and2. Criterion 2 5 There has to be one Click Yes to return to Target Results on Station target in a distance of max 6 66m to the stati horizon 0 t t 1 and then click Add to add target scans to the i eee measurement configuration No Click No to finish the check The software will now Start to evaluate the existent measurements and check as many parameters as possible see step 21 In case of a suitable measurement configuration on station 1 the measurement can be continued on station 2 Information Q Information Target scanning on 1st station is completed Do not turn off the instrument Set up the instrument on station 2 and level it Leave the instrument running Proceed to the 2nd station and level the instrument accurately accurately Remove the handle from the top of the in strument in order to get a clear line of sight to targets in higher elevation angles Click OK to continue Leica HDS Check amp Adjust User Manual Version 1 0 6 Description In case the instrument has not been levelled up in a range of 20 arcsec the electronic level will be displayed Level up the instrument in a range of 20 arcsec After levelling the instrument press Cont to con tinue On station 2 only two of all used targets have to be defined The results of these target scans will be used for calculating a first resection and then automatically scan the remaining targets Select the appropriate tar
3. HDS Check amp Adjust User Manual Version 1 0 Figure 2 Measurement configuration criteria for a complete angular parameter check 3 2 Basic Workflow The angular parameter check is a guided procedure The basic steps are aw ee a Z 8 9 Setting up at least five targets Setting up the instrument on station 1 Defining the target scans and scanning the targets Reviewing the scans Setting up the instrument on station 2 Defining at least two target scans out of the five targets used on station 1 and scanning these targets Reviewing the scans Automatically scanning the remaining targets Reviewing the scans 10 Automatic evaluation and calculation of the results 11 Registering or skipping the results Leica HDS Check amp Adjust User Manual Version 1 0 3 3 Detailed Workflow Before starting the measurements the instrument has to become acclimatised to the ambient temperature Approximately two minutes per 1 C temperature difference from storage place to working environment but at least 15 min should be taken into gt account The instrument should be protected from direct sunlight in order to avoid thermal warming in general and especially on one side of the instrument housing It is also recommended to avoid strong heat shimmer and air turbulences The best conditions can be found usually in the morning and with overcast sky The tribrach the tripod and the underground should be very stable
4. and secure from vibrations or other disturbances m Define a measurement configuration according to the configuration criteria described in section 3 1 2 Set up the instrument on station 1 Remove the handle from the top of the instrument in order to get a clear line of sight to targets in higher elevation angles Set up the targets in at least five different positions cf configuration criteria in section 3 1 4 Tools Check amp Adjust Menu Select the option Sie Angular Parameters 5 Read the Welcome message carefully a 0 A Information Click OK to continue Welcome to the Angular Parameter Check Please read the HDS Check amp Adjust manual carefully For starting the Check amp Adjust process set up the instrument on the 1st station and level it accurately Install at least 5 targets according to the reamme measurement In case the instrument has not been levelled upin g 0 jA a range of 20 arcsec the electronic level will be displayed p Level up the instrument in a range of 20 arcsec TiltL 10 Tilt T 14 After levelling the instrument press Cont to con tinue Leica HDS Check amp Adjust User Manual Version 1 0 7 Define the target scans on station 1 Each target sei ZIM EE a Check scan has to be defined by 1 specifying a target ID in the Target ID input Target ID T3 field and Target Type HDS B W Target 2 aiming at the targ
5. ds5 3 where ds is the distance between both sta tions e These targets have to be positioned within a maximum angle of 15 above or be neath the horizontal plane e These targets have to be positioned in a horizontal direction of 135 up to 225 relative to the direction to the farer station 3 There has to be at least one target in a distance of at least ds from both stations where ds is the distance between both stations It has to be positioned in a maximum angle of 5 above or beneath the horizontal plane 4 There has to be at least one target in a height of at least 18 m above one station ina minimum angle of 73 above the horizontal plane 5 The distance between both stations ds has to be equal or greater than 20 m 6 At least five targets in five different positions are necessary Figure 2 visualizes the measurement configuration criteria 2 to 6 In case all six configuration criteria are met all angular deviations can be checked by evaluating the target scans In case One or more criteria are not met only a subset of the angular deviations will be consid ered and checked Always consider the laser beam s angle of incidence on the target plane when positioning the targets and defining the station positions The angle of incidence should never be less than 60 while 90 is the optimum angle The minimum number of targets is five Nevertheless it is recommended to use six to eight targets for the check Leica
6. influence the system accuracy 3D laser scanners that are exposed to such hard conditions Should be checked periodically to ensure that the measurement results meet the specifications This can be done in the field by running through specific measurement procedures The devia tions determined by the Check amp Adjust procedures can be stored permanently and applied as corrections to every scan automatically 2 Access to Check amp Adjust Menu Select Main Menu Tools Check amp Adjust 16 55 18 Q Check o9 Q A Check amp Adjust i ee ho Check Angular Set Range Parameters Parameters S rN S wee Check Tilt Current Compensator Calibration Ready SZ A MES Figure 1 Check amp Adjust Menu The Check amp Adjust menu provides four functions Description Refer to section The angular system parameters can be determined by means of a field procedure and registered in the instru aa Check Angular AY Parameters Set Range Ke Parameters Check Tilt Compensator Leica HDS Check amp Adjust User Manual Version 1 0 ment The following deviations can be checked and adjusted Al A2 u E Ael In case the distance measuring unit has been checked by Laser alignment deviations Deviation of the line of sight Deviation of the tilting axis Deviation of the vertical index means of a standard procedure on a reference baseline the range offset parameter can be registered in the i
7. instrument should be set up on solid ground l Tools Check amp Adjust Menu Select the option Check Tilt Compensator 3 The instrument is turning horizontally and stop ats 40 2 as ping in several positions Checking Tilt Compensator Parameter 4 Result 4 Do not touch the instrument as long as the check is Ongoing and no results are displayed on the screen Calibrating tilt sensor T nc After the check is finished the results of the tilt compensator check are listed on the screen Checking Tilt Compensator Parameter 4 Result 4 Click Set to register the determined deviations permanently All further tilt measurements will automatically be corrected by these values To skip the check results and retain the current calibration click 6 Current Calibration In the Current Calibration list the parameters deter as 0 as mined in a check and stored permanently in the instru Current Check amp Adjust Parameters ment can be reviewed a Click Reset to reset all user determined parameters and restore the in factory calibration range offset Click Cont to return to the Main Menu comp L comp T Leica HDS Check amp Adjust User Manual Version 1 0
8. 1_2 T2 T4 T1 T1_2 T2 T4 Station Target Batch Processing Est Time 9s Scanning MA a 12 34 56 Check oC me cas Target Results on Station 2 Target Type State HDS B W Target OK HDS B W Target OK HDS B W Target OK HDS B W Target OK HDS B W Target HDS B W Target OK Configuration allows complete parameter check NM as a Target ID 12 34 56 oO Check od G ot h A 43 69 Q7 ma Angular Check amp Adjust Results Result 4 tas Parameter 4 Click Set to register the determined deviations permanently All future scans will automatically be corrected by these values Click Cont to skip the check results and retain the current calibration For each performed angular parameter check a project is automatically created The project name is composed of the prefix CnA_ and a time stamp e g CnA_20121221 1045 This pro ject contains the target scan data acquired during the check Additionally each performed angular parameter check is logged in an extra log file This log file can be downloaded by connecting a USB drive to the instrument and selecting Main Menu Tools Transfer Logs On the USB drive the log file of the check Is saved in the directory Log The name of the log file is composed of the prefix check_n_adjust_report_ and a time stamp e g check_n_adjust_report_20121221_1045 txt 4 Set Range Parameters 18 38 32 rad QD Afte
9. 2 34 56 Q Click View to review the selected target scan and Check S cas Resection Results the determined target center Stn Coords Sigma Target List Plot Target ID dE Use Click More to review the residuals of the target E Hobbes E ee centers If the residuals in column dE dN dH are a ae PS not greater than 15 mm the resection result is acceptable for proceeding with the check Click Add to return to Define Resection Targets Ready z on Station 2 and add more target scans see a step 15 e g for improving the resection results esti 6 G7 m as Resection Results If the residuals in column dE dN dH are equal or Stn Coords Sigma Target List Plot below 15 mm click Cont to start scanning the remaining targets on station 2 TS T3 Ready VW a Leica HDS Check amp Adjust User Manual Version 1 0 1 The remaining targets are scanned automatically Do not touch the instrument before the Tar get Results on Station 2 are displayed on the screen Touching the instrument before might influence the tilt sensor measurements and can significantly influence the accuracy of the check Every target is scanned in face and in face Il In case a target scan In at least one face fails or the deviation of the target centers of face and face Il is too high this target scan Is re peated automatically in both faces In rare cases a target scan may be performed up to three times Targets al
10. et in the live video PickT see step 8 Click ChkExp to adjust the exposure time of the live video Please add more targets MA Pe eo i i 12 34 56 lt 2 Click PickT to aim at the target in the live video OG i as see step 8 Target Def Target List Target ID Type Height Click Page or Target List to access the list of the Ti HDS B W Target 0 000 m already defined target scans Return to the Tar ne OSB Target T 00o M a tates aa T3 HDS B W Target 0 000 m get Definition interface by clicking Page or Tar T4 HDS B W Target mR get Def HDS B W Target Select a target in the list of target scans and press Number of targets sufficient Del in order to remove the target scan a a ma After defining one or more target scans click Cont to start scanning the defined targets Navigate in the live video by using the following Live video functions e Enable the rotation wheel by clicking amp The rotation wheel appears in the center of the screen It provides arrow buttons for navi gating up 4 down to the left 4 or to the right After activating an arrow button the instrument or the mirror respectively will move in the appropriate direction continuous ly The movement can be stopped by clicking anywhere on the screen Enable the seek mode by clicking The cam era will point to any position clicked before Scan viewer Use amp zoom in or amp zoom out picking the targe
11. get IDs from the list in the Target ID field and press PickT to aim at the targets in the live video For target picking instruc tions please see step 8 For this purpose it is not recommended to select a target which is positioned in a high elevation Click ChkExp to adjust the exposure time of the live video Click PickT to aim at the target in the live video see step 8 Click Page or Target List to access the list of the already defined target scans Return to the Tar get Definition interface by clicking Page or Tar get Def Select a target in the list of target scans and press Del in order to remove the target scan Define at least two target scans and click Cont to Start the scans The defined target scans are performed Target scanning can be paused by clicking Pause and resumed by clicking Resume button toggles Do not touch the instrument before the Re section Results are displayed on the screen Touching the instrument before might influ ence the tilt sensor measurements and can significantly influence the accuracy of the check Leica HDS Check amp Adjust User Manual Version 1 0 Check 69 Gi as 10 14 Tilt L Tilt T 12 34 56 Check 9 C amp T te Ta Target ID Target Type Z Et ee ee CAKEP HG m fas Define Resection Targets on Station 2 Target Def Target List Target ID Type Height T3 HDS B W Target 0 000 m 15 HDS B W Target 0 000 m 12 34 56 C
12. heck T ee 12 34 56 gt Check oo G ale A 43 t i i Station 002 212 T3 T5 T3 15 9s Scanning A a Station Target Batch Processing Est Time For every target a coarse scan Is performed first Then it is scanned tn face and in face Il 17 After the defined targets were scanned the Re ae HG as Check section Results are displayed Stn Coords Station ID Station 002 Instrument Ht 0 000 m If no resection result is available one or more target scans might have failed Therefore check No of Targets 2 i PA Northing 17 123 m the target scans by selecting Target List or click ine Da ing Page twice Height 0 234m If a target scan has initially the Use flag Yes in F the Target List its target center has been suc Se a cessfully determined in both faces and its result will be used for the resection calculation a ZIM me Sas If a target scan has initially the Use flag No the i j Stn Coords Coords Sigma Target List List Plot target center could not be determined in at least Station ID Station 002 one face oNorthing 0 001 m oEasting 0 000 m oHeight 0 002 m Ifa target scan got the Use flag No use the ae A Add button to return to Define Resection Targets on Station 2 see step 15 Redefine the same target scan or define another target E onc a scan and press Cont to start the scan a a 1
13. nstrument The tilt sensor can be checked and its parameters can be updated by an easy to use tilt sensor check The following deviations can be checked and adjusted L T Compensator longitudinal and transversal index error Function Description Refer to section fap Current The currently stored corrections determined in Check amp A Calibration Adjust are displayed and can be reset to the factory default values 3 Check Angular Parameters The angular system parameters are checked in a guided field procedure In this field procedure the instrument has to be set up on two different stations From both sta tions at least five Black amp White targets will be scanned in both faces After collecting all measurement data the software will automatically check the target scans and evaluate the measurement data Finally the determined angular deviations will be displayed and can be registered in the instrument as corrections In order to ensure a thorough parameter check the measurement configuration has to fulfill cer tain configuration criteria 3 1 Measurement Configuration The measurement configuration of the angular parameter check has to meet six criteria l No target must be scanned in a distance shorter than 2 5 m 2 There has to be at least one target behind and close to each station near horizon i e e Next to each station a target has to be positioned in a minimal distance of 2 5 m and in a maximum distance of
14. r checking the instrument s distance measuring unit 10 on a distance reference baseline and determining a signif Set Range Offset icant range offset this range offset can be permanently ee eer ee Oyo ae ae reliable results on a reference baseline according to registered All future scans will automatically be corrected correct dist offset measured dist Consider the sign of your setting by use of this range offset as Range Offset 0 0000 Im Access the Set Range Offset interface by selecting Main Menu Tools Check amp Adjust Set Range Pa rameters The specified range offset will be applied to all future scanning data by corrected distance measured distance range offset Leica HDS Check amp Adjust User Manual Version 1 0 5 Check Tilt Compensator The check of the tilt compensator is a fully automated process t Before starting the measurements the instrument has to become acclimatised to the ambient temperature Approximately two minutes per 1 C temperature difference from storage place to working environment but at least 15 min should be taken into account The instrument should be protected from direct sunlight in order to avoid thermal warming in general and especially on one side of the instrument housing It is also recommended to avoid strong heat shimmer and air turbulences The best conditions can be found usually in the morning and with overcast sky The
15. ready scanned for the resection might be repeated automatically in this step if their deviation of the target centers in face and face II was too high After the remaining targets were scanned the results are listed If a target scan has status OK its target center has been successfully determined in both faces If a target scan has status Bad even after three scanning attempts the target center could not be determined for at least one face This target scan will be excluded from the upcoming evaluation Click View to review the selected target scan and the determined target center Click Cont to start the evaluation In the automatic evaluation process the overall measurement configuration is checked and the angular deviations are determined In case One or more configuration criteria are not met cf section 3 1 or the required measurement accuracy cannot be achieved an appropriate mes Sage is displayed on the screen In case a message is displayed read it carefully and click OK After the evaluation the determined angular devi ations are displayed In case the configuration criteria are met five an gular deviations will be determined and displayed In case one or more configuration criteria are not met only a subset of the angular deviations will be determined and displayed Leica HDS Check amp Adjust User Manual Version 1 0 12 34 56 lt 7 ial Check bd G me l A 43 E Station 002 2 4 T1 T
16. rget Bad HDS B W Target Bad HDS B W Target HDS B W Target 0 Please add more targets A ee e a ZIM A Target Results on Station 1 Target ID Target Type State T1 HDS B W Target OK HDS B W Target OK HDS B W Target OK HDS B W Target OK HDS B W Target HDS B W Target OK Valid measurement configuration bA a 12 34 56 Check a 11 Description Click Cont to finish target scanning on station 1 After clicking View the target scan is displayed in the target viewer The determined target center Is indicated by a vertex Click to toggle the target scans of both fac es Click to rotate the target scan Click W E to toggle the colors of the displayed target scan Use amp zoom in amp zoom out or amp fit to screen to change the scale of the target scan display Browse all target scans of the list by clicking lt previous scan and gt next scan Leave the target viewer and return to the Target Results on Station 1 by clicking A After target scanning on station 1 is finished the 774 HG A measurement configuration will be checked ee ee In case one or more configuration criteria are not W Unsuitable Measurement met cf section 3 1 a message will be displayed Configuration accordingly asking if the measurement configura For a thorough parameter check th t fi ti tion can be improved by adding more targets mees ihe llowinwertera
17. ses a target scan may be performed up to three times In case a target In a significant height above the instrument Is detected this target scan Is repeated automatically The additional target scan will by listed with suffix _2 afterwards After all defined targets were scanned the results are listed If a target scan has status OK its target center has been successfully determined in both faces If a target scan has status Bad even after three scanning attempts the target center could not be determined for at least one face If a target scan got status Bad use the Add button to return to the Target Definition in terface see step 7 Redefine this target scan and press Cont to start the redefined target scan Click Add to return to Target Definition and add more target scans see step 7 In case more than five targets have been defined a target scan can be selected in the list and can be deleted by pressing Del Click View to review the selected target scan and the determined target center see step 11 Leica HDS Check amp Adjust User Manual Version 1 0 12 34 56 7 Check bY Gi Be Scanning Targets on Station 1 43 lt i Station 001 A Station Target 2 5 Batch T1 T2 T3 T4 T5 Processing T1 1T2 13 14 T5 Est Time 9s Scanning 12 34 56 Check 63 Q7 m is Target Results on Station 1 Target ID Target Type State T1 HDS B W Target OK HDS B W Target OK HDS B W Ta
18. t there are three possibilities Point at the target by the crosshair e g by using the seek mode Activate the pick mode by clicking as soon as the target Is in the field of view of the camera and click roughly on the target center Activate the fence mode by clicking 4 and draw a fence around the target The target will now roughly be scanned and the scan will be displayed in the target scan viewer Activate the pick mode by clicking and roughly click on the target center in the scan In order to confirm the picked direction to the Leica HDS Check amp Adjust User Manual Version 1 0 target and to return to the Target Definition in terface click V For leaving the live video without picking a target click A Scanning the defined targets and determining their target centers Is a fully automated process Target scanning can be paused by clicking Pause and resumed by clicking Resume button toggles Do not touch the instrument before the Tar get Results on Station 1 are displayed on the screen Touching the instrument before might influence the tilt sensor measurements and can significantly influence the accuracy of the check For every target a coarse scan is performed first Then it is scanned in face and in face Il In case a target scan in at least one face fails or the deviation of the target centers of face and face Il is too high this target scan Is re peated automatically in both faces In rare ca
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