Ircon ® ScanIR ® 3 Linescanner How to work with Snapshots? Confidential Rev. A 07/2013

How to trigger snapshots correctly? Not too short, not too long – defining the snapshot length Always the best fit – scaling of snapshots Getting the max out of it – snapshot appearance and manipulations Record it, share it, file it – reviewing and saving of snapshots Snapshots – Agenda

What is a Snapshot? Snapshots are related to discrete/discontinuous processes How can snapshots get synchronized with the process? Different sizes Missing objects ProcessSnapshots End Start

Trigger Mode Starting and ending a snapshot is initiated by a trigger Trigger by Scanner Snapshot by snapshot Trigger by PC Line by line

Trigger Mode Snapshots relevant for ZoneMaster systems Configurator: page

Trigger Sources 1. Cyclic Trigger Self-triggering of snapshots after a given time for demonstration purposes only! Process ClockCyclic Trigger  Synchronization is not guaranteed!

Trigger Sources 2. Temperature Trigger Passing a temperature threshold initiates a trigger signal requires a significant difference between background and object temperature! End Trigger Start Trigger cold hot Threshold

Trigger Sources Case Study Glass sheet transported on a hot carrier Where to go with the temperature threshold to trigger on the sheet edge and not on the carrier? Hot Carrier Sheet Hot Carrier Sheet Edge

Trigger Sources 2. Temperature Trigger: Exclude Regions By default, trigger condition is applied to the whole scanner line  define certain regions to be ignored by triggering Hot Carrier Sheet … are trigger sensitive Region 1Region 2 Region A … are excluded from triggeringRegion C Region B

2. Temperature Trigger: Exclude Regions 1.Under the call the context menu 2. to make sure to work on the raw image 3. to add an excluded region 4.Move the red marker lines to the desired regions, confirm with a double click Trigger Sources Excluded Region

Trigger Sources 3. External Trigger External signal at the scanner to indicate the presence of the object (light barrier, proximity switch, PLC, etc.) does not assume a temperature difference, but requires additional installation efforts! Process Control Trigger Out Light barrier 0 to 24 V

Trigger Sources 4. OPC Trigger Triggering via a corresponding OPC item for the user on a high automation level! Process Control OPC Client Scanner SW OPC Server Trigger

How to trigger snapshots correctly? Not too short, not too long – defining the snapshot length Always the best fit – scaling of snapshots Getting the max out of it – snapshot appearance and manipulations Record it, share it, file it – reviewing and saving of snapshots Snapshots – Agenda

Snapshot Length Starting a Snapshot transition from Low to High … from cold to hot temperature … from low to high signal … from “0” to “1” condition or transition from High to Low … from hot to cold temperature … from high to low signal … from “1” to “0” condition

Snapshot Length End a Snapshot: Fixed Length End a snapshot after a given number of lines N Getting complete snapshots depends on: Object size l Process speed v Scan frequency f

Snapshot Length Case Study, Fixed Length Object l = 1 m, Speed v = 1 m/s  1 s Frequency f = 10 Hz, Lines N = 10  1 s 10 Lines / 1 s 1 s ProcessSnapshot

Snapshot Length Case Study, Fixed Length Object l = 2 m, Speed v = 1 m/s  2 s Frequency f = 10 Hz, Lines N = 10  1 s 2 s Process Snapshot 10 Lines / 1 s Object not completely covered!

Snapshot Length Case Study, Fixed Length Object l = 1 m, Speed v = 2 m/s  0.5 s Frequency f = 10 Hz, Lines N = 10  1 s 0.5 s ProcessSnapshot 10 Lines / 1 s Snapshot not completely covered! Snapshots with fixed length are to be used for constant object sizes and process speeds!

Snapshot Length End a Snapshot: Flexible Length Flexible end due to rising/falling slope condition  Number of lines not constant

Snapshot Length Case Study, Flexible Length Object l = 2 m, Speed v = 1 m/s, Frequency f = 10 Hz 2 s Process 10 Hz / 20 Lines / 2 s Snapshot Perfect! Flexible line count compensates for different object sizes!

Snapshot Length Case Study, Flexible Length Object l = 1 m, Speed v = 2 m/s, Frequency f = 10 Hz 0.5 s Process 10 Hz / 5 Lines / 0.5 s Snapshot Perfect! Flexible line count compensates for speed changes!

Trigger Summary Trigger by Scanner Temperature/External Trigger Cyclic Trigger Snapshots in fixed length only Buffer: 750 lines Trigger by PC Temperature/External Trigger should be the mode of your choice! OPC Trigger Snapshots in flexible length Buffer: 3000 lines

How to trigger snapshots correctly? Not too short, not too long – defining the snapshot length Always the best fit – scaling of snapshots Getting the max out of it – snapshot appearance and manipulations Record it, share it, file it – reviewing and saving of snapshots Snapshots – Agenda

Snapshot Scaling Snapshot Dimension Configurator: page 4000 mm

Snapshot Scaling Geometrical dimensions are mapped to the scanner’s field-of-view independent from the mounting distance! Geometrical dimensions are mapped to the scanner’s field-of-view independent from the mounting distance! Case Study 4000 mm0 mm 2000 mm ? 4000 mm0 mm 1000 mm

4000 mm0 mm Snapshot Scaling Case Study Dimensions independent from the mounting distance (specific software approach) PRO For difficult to reach installations or scanners mounted under an angle BUT If the scanner’s field-of-view does not fit the object  need for rescaling! Horizontal Rescaling 4000 mm 0 mm

Horizontal Rescaling: 1.Under select context menu 2. to make sure to work on the non-scaled image 3.Then select context menu entry 4.Move the red marker line to the left/right edge of the profile, confirm with a double click 5.Enter the rescaled position for the left and the right edge Snapshot Scaling

Vertical Rescaling Required for flexible process speeds Process speed provided as: - OPC item - analog voltage on the scanner’s input 0 mm Vertical Rescaling 4000 mm 0 mm l length

How to trigger snapshots correctly? Not too short, not too long – defining the snapshot length Always the best fit – scaling of snapshots Getting the max out of it – snapshot appearance and manipulations Record it, share it, file it – reviewing and saving of snapshots Snapshots – Agenda

Snapshot Appearance Color Map Snapshot View: context menu Zoom the displayed temperature range for a more detailed view Measurement range: 100°C to 950°C (212ºF to 1742ºF)

Snapshot Appearance Color Map Snapshot View: context menu Reduced count of colors for high-contrast images Thermal image down to „hot“/„cold“ regions

Snapshot Manipulation Case Study Customer wants to see a dedicated temperature, i.e. 640°C (1184ºF) Snapshot View: Context menu Double click at the reference position Input the desired temperature 620°C (1148ºF) compensates for an unknown emissivity to see the desired target temperature! 640°C (1184ºF)

Snapshot Manipulation Case Study 640°C (1184ºF) compensates for transmission losses to see the desired target temperature! 640°C (1184ºF) Protective window 620°C (1148ºF) Transmissivity calculation

How to trigger snapshots correctly? Not too short, not too long – defining the snapshot length Always the best fit – scaling of snapshots Getting the max out of it – snapshot appearance and manipulations Record it, share it, file it – reviewing and saving of snapshots Snapshots – Agenda

Snapshot Saving Where to save a snapshot? Configurator: page Automatic filename generation: a) with date/time stamp b) with a running number (ring buffer) Storage locations / destination folders: a) data files b) alarm log files

Snapshot Saving When to save a snapshot? Snapshot View: context menu Saving conditions are linked to the snapshot view – do not close that window! Cyclical saving Saving per snapshot counter Saving based on zone alarms Saving via external signal Example: each 5 th minute OR each 10 th snapshot OR with an alarm Standard graphic formats ASCII format Proprietary format for later review Full Image ASCII format one file for all zones ASCII format one file per zone Zone Results

Snapshot Description Providing a production specific description to a snapshot Batch No. „ABC123“ Runtime SW: Snapshot Saving History View: Configurator: static ASCII file: „Note.0“ dynamic Serial No. „DEF567“ OPC item: dynamic Batch No. „DEF567 “

Snapshot Review Window Description Deletion DateTime Pause Last image Previous image Backwarding like a movie Next image Shadowed button indicating an automatic update Update function behind the button for viewing the latest snapshot automatically!

Snapshot Review Remote Monitoring TCP/IP Runtime \\myPC\...\Store Offline \\myPC\...\Store Offline \\myPC\...\Store Quality dept. Service Running the software offline on remote computers can be used as a simple viewer for the snapshot history!