Quick Guide. 3 November Introduction To The Mass Calibration Function Of TeLWinPro. Status: Informative

Transcription

1 Quick Guide 3 November 2008 Introduction To The Mass Calibration Function Of TeLWinPro Status: Informative Introduction The purpose of this guide is to introduce the Mass Calibration function of the TelWinPro program. This guide is not a complete reference and for the sake of getting started the frame grab and video functions are not illustrated. Basic principles There are basically two calibration modes available in the program: Using calibration trucks of known mass. These are vehicles of which the mass (and other dimensions) are known. Typically a truck or trucks that pass over the WIM site a pre determined number of times. As they pass over the WIM site the event is tagged in the recorded data. Using a random sample of vehicles from the traffic stream. If a weigh station or reference scale is available up stream or down stream from a WIM site vehicles are tagged randomly in the recorded data and the compared with the reference scale. A mixture of both these methods can also be used. The data is stored in the online RUNFILE. The tagged (marked) WIM data is compared to the data in the CALFILE. The RUNFILE is recorded in real time and the user marks (tags) the vehicles that are used for calibration or comparison. The CALFILE is created by the user from information gathered from the reference scales. This information can be imported or entered manually. The calibration function has two modes: Calibration Calibration constants are calculated for each WIM sensor (comprehensive calibration statistics). Verification Current calibration is checked against actual observations (comprehensive verification statistics). (Note there may more than one way of doing setups and displays.) Mikros Systems Quick Guide 1/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

2 This Quick Guide describes 8 main steps to perform Calibration/Verification with the TelWinPro program. Step 1: Connecting to the Logger and opening a RUNFILE. Step 2: View the RUNFILE. Step 3: Create the calibration CALFILE. Step 4: Mark vehicles in the RUNFILE. Step 5: Loading a created RUNFILE. Step 6: Check and match Calibration/Verification vehicles. Step 7: Calibration/Verification reports. Step 8: Exporting results. Mikros Systems Quick Guide 2/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

3 NB: The Logger must be recording individual vehicles in a Weigh program. Step 1: Connect to a logger and open the RUNFILE (Logger/Connect/Modes/Enable/OK) Click on the Connect icon (1) Select Traffic (2) Select Modes (3) Click Enable File Capture (4) Check the RUNFILE name and path and Select (5) The RUNFILE name is the date with and.run file extension. The file is by default stored in the directory RUNData\ site number \yyyymmdd.run When OK is clicked the program will indicate that online RUNFILE recording is now active. Mikros Systems Quick Guide 3/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

4 All the online traffic is now recorded directly into the RUNFILE. Normal logging is not interrupted by this process. The online parameters displayed (controlled by the Show command) do not influence the actual parameters recorded in the RUNFILE. Step 2: View the RUNFILE (View) Mikros Systems Quick Guide 4/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

5 Tab sheets of the RUNFILE: RUN Data: Basic The Basic online on line traffic information such as: Speed, Lane, Length etc. The RUN No. is the number of the vehicle in the RUNFILE (from start of recording). The LOG No. is the number of the vehicle in the logger memory since start of logging. AxleInfo The individual axle masses and axle spacing recorded. Shape The profile of the vehicle as cheeked against the vehicle file. Violation Info The violations if this is set in the site data base (over speed, weight) Picture 1 The frame grab picture from camera 1. Picture 1 The frame grab picture from camera 1. Info The RUNFILE path and name, the site number and the number of lanes Selection of Profile: Mikros Systems Quick Guide 5/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

6 The profile of the vehicles is a scaled drawing and the shape is selected according to the classification code from the Vehicle File. Some profiles overlap and a suggested list is provides. As time goes on the Vehicle File gets refined and updated by users. The Vehicle File can be accessed on the Control Panel. Mikros Systems Quick Guide 6/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

7 Scroll Bar: Use the scroll bar to page through the individual run vehicles. The wheel on a wheel mouse is active. Mikros Systems Quick Guide 7/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

8 Control Panel: The Control Panel of the RUNFILE viewer has the following main functions: Loading and creating RUNFILES Mode selections Setup options Export options RUNFILE navigation keys Filter setting to select Run Data According to a filter selection Mikros Systems Quick Guide 8/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

9 Available Mode Selection: The Mode Selection in the RUNFILE viewer (recorder) allows for the selection recording modes: Live Allows for the live recording of online traffic, must set on (ticked). Edit Must be selected to allow for editing the RUNFILE, edit allows for CAL DATA (VERIFICATION DATA) to be entered in the RUNFILE. Calibration must be selected when doing WIM calibration. Statistics must be selected when doing classification verifications. Speed must be selected when doing speed calibration (verification). NOTE: To be able to do WIM calibration the data of the calibration trucks must be entered and then matched to the collected RUN DATA. STEP 3: Create a CALIBRATION FILE (CAL FILE) The CAL file can be created before or after the RUN FILE recording. NOTE: To match the RUN DATA to the CAL DATA care must be taken to clearly identify the match. When cameras are used it reduces possible miss-match errors. If no cameras are used the RUN DATA must be clearly marked with Marking vehicles, entering the correct registration numbers and descriptions. Also keep a list of the RUN NUMBER associated with a particular calibration vehicle. If there is any doubt about a match between the RUN and CAL data the record must be excluded from the calculations. Mikros Systems Quick Guide 9/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

10 Tick Calibration On (in the RUNFILE Control Panel) The Calibration Control Panel will remain dim (not available) until the Edit is ticked. Tick Edit On Now the Calibration control panel is active. Select Load to enter the CAL FILE Form an existing file or from scratch (New). Select New Mikros Systems Quick Guide 10/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

11 A CAL FILE will be created (YYMMDD.cal) Mikros Systems Quick Guide 11/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

12 Click New to enter data of the Calibration truck Enter as much detail as possible: TIP: It is necessary to click Update when changes are made to the CAL File, to make permanent Save. Mikros Systems Quick Guide 12/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

13 Use the Apply button after any edits, must be used to affect axle grouping. Navigate trough the CAL Vehicles with the navigation panel. NB: Always use the Update button after a new CAL Vehicle has been entered. Mikros Systems Quick Guide 13/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

14 STEP 4: Mark (tag) Calibration vehicles in the RUNFILE (Select the RUNData tab sheet and then the Calibration tab sheet) NOTE: First method when using CAL Vehicles. The Calibration control panel: ID Scroll list Commands: Save saves the cal vehicle id in the RUNFILE Cancel cancels armed set up Pause pauses the RUNFILE display allows time for data entry Live lets the RUNFILE continue with online capture Arm readies for the next calibration vehicle. Display pauses to allow data entry. Mikros Systems Quick Guide 14/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

15 Click Live to view the online traffic (Note the green status indication will appear) TIP: select only the lanes that are being calibrated. Mikros Systems Quick Guide 15/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

16 Arm the process by pressing Arm The display will pause with arrival of the next vehicle (truck) Select the CAL VEHICLE from ID Scroll or type in directly TIP: A vehicle can be Marked after is has passed the site. Just Pause the display and scroll back the vehicle in question, Mark and Save and return the Live screen again. Mikros Systems Quick Guide 16/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

17 Apply to load cal information. Choose the Calibration Mode (tick Mass CAL) Enter any comments (e.g. driving erratic, braking violently) Mikros Systems Quick Guide 17/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

18 NOTE: For RANDOM VEHICLE CALIBRATIONS Arm before the vehicle arrives Type in the vehicles description and registration in the comments field before saving In addition to entering registration numbers keep a separate record of RUN No and the detail of the vehicle associated with it. Mikros Systems Quick Guide 18/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

19 STEP 5: After the all the RUN Vehicles have been marked. The User can still enter more CAL Vehicles. This will typically done when Random Sample Trucks are used which are only weighed later. A recorded RUNFILE can be opened and additional CAL Vehicles added. In addition the RUNFILE can also be checked for obvious miss matches and faulty measurements. These data sets can be excluded from the calculations. Loading a recorded RUNFILE: From the TelWinPro Main Menu Bar Select (Options/RUN File View) Mikros Systems Quick Guide 19/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

20 Load RUN File Select the required RUNFILE Mikros Systems Quick Guide 20/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

21 Select the Edit and Calibration Modes Mikros Systems Quick Guide 21/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

22 Load the CAL File Mikros Systems Quick Guide 22/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

23 New CAL Vehicles can now be added or previous entries corrected Mikros Systems Quick Guide 23/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

24 STEP 6: Check and match RUNFILE data. To include a CAL and RUN vehicle in the calculation: Select the calibration tab sheet (RUN Data/Calibration) NB Edit and Calibration must be checked ON Use the Scroll bar or navigator keys to page to the required RUN vehicle Associate a CAL Vehicle with a RUN number (vehicle) Mikros Systems Quick Guide 24/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

25 Apply the selection NOTE: At this stage the vehicle will not be included in the calculation. Mark for Mass CALL Save to use in calculation (now the pair is included in the calculation) Mikros Systems Quick Guide 25/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

26 To remove a CAL and RUN pair from the calculation: Select the RUN number to modify Uncheck Mass CALL (this will remove the RUN from the calculation) Edit the comment (recommended to keep track of the reason for exclusion) Save to make permanent NOTE: At any time new CAL vehicles can be added and existing CAL vehicle can be edited. However RUN vehicles can not be modified, they can only be excluded from the calculations. TIP: Before accepting the final calculations scroll trough the RUNFILE and check each entry. Mikros Systems Quick Guide 26/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

27 STEP 7: Calibration calculations and data reports. Load the required RUNFILE Load the CAL file Note: Tick Calibration mode on Mikros Systems Quick Guide 27/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

28 Note: To allow for changes (in and exclusions) select Edit mode on Select the RUN File/Calibration tab sheet First vehicle in the RUNFILE Mikros Systems Quick Guide 28/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

29 TIP: To go to CAL vehicles quickly use the Navigation Filter and set to Calibration Vehicles. Scroll trough all CAL Vehicles and verify that all are include that are required to be selected. TIP: Check that for that RUN number the Mass CAL (in case of calibration) or Mass VER (for verification) is ticked ON. The example is from a Mass Verification. Mikros Systems Quick Guide 29/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

30 Statistics : To check the over all calibration statistics, select : Calibration/Results All Vehicles: is the total number of marked vehicles in the RUNFILE (per lane and total) For each of the available calibration or verification options the number of vehicle marked and used (included) Calibration Weight Marked and Used Verification Weight Marked and Used Verification Spacing Marked and Used Verification Length Marked and Used Verification Speed Marked and Used NB: always use the Update button to load the results after vehicles have been included or excluded. Mikros Systems Quick Guide 30/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

31 View the Calibration results, select : Calibration/Mass Calibration Data/Sensor Calibration Data The Weigh Factors as calculated by TelWinPro after calibration using the indicated CAL and RUN pairs. Mikros Systems Quick Guide 31/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

32 Display the results, select : Calibration/Mass Calibration Data/Details TIPS: Make sure that the correct Mode is selected (Cal/Ver) The Original radio button displays the data as calculated To change the Calibration values manually and check what the outcome is use the Overides tab sheet and turn on the User Specified radio button. NB: always Update after changes are made to the RUNFILE IMPORTANT: This example illustrates the Verification Mode. When Calibrating select the required Calibration method. The default is using GVM (Mean % Error) Only vehicles marked for Calibration will be used in the calculations. In Details both the Verification and Calibration results can be displayed. Mikros Systems Quick Guide 32/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

33 Overriding the calibration values, select : Calibration/Mass Calibration Data/Overides TIP: to find a vehicle on the Calibration Detail Graph Check On the Find & Show check box This allows the MOUSE to click on any data point on the Details graph and then go the RUN vehicle selected. This is a useful function to check on outliers. Mikros Systems Quick Guide 33/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

34 Hover over the data point and click to select RUN Number 970 is indicated for selection. Mikros Systems Quick Guide 34/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

35 RUN Vehicle 970: TIP: To view all the WIM data resize the display windows: Mikros Systems Quick Guide 35/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

36 STEP 8: Export the calibration results for publication. To Export the calibration results as a CSV file, select : Calibration/Mass Calibration Data/Export Click Proceed Enter the name of the file and path to be saved Mikros Systems Quick Guide 36/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1

37 Sample of the CSV calibration/verification results file Mikros Systems Quick Guide 37/37 Mass Calibration Function Of TelWinPro 3/11/08 - I1