picoScan150: Motion direction detection

This article shows a possible way to detect the moving direction of a object in two directions with a picoScan150. A movement can be detected either from right to left (port 4 / pin 6 switches) or left to right (port 3 / pin 5 will switch). Alternatively, the direction can be read event driven via CoLaA/B (LIDoutputstate). For tutorial see: „How to read fieldstate” https://support.sick.com/sick-knowledgebase/article/?code=KA-10052. The 2D LIDAR picoScan150 must be mounted as follows for the direction of movement:

• 2D LiDAR: picoScan150 with 2D Object Detection and system plug (P/N 2130871)
• Connection box: CDB730-001 (P/N 1055981, optional)
• Adapter cable: M12 -15-pol D-Sub (P/N 6061700, optional)
• Cable to connect the box with e.g. a signal light

When using the connection box (CDB730-001) or for example a control cabinet:

• Input 1 (PIN3 of picoScan150) must be bridged with Output1 (PIN5 of picoScan150 or CDB730 terminals 33-20)
• Input 2 (PIN4 of picoScan150) must be bridged with Output2 (PIN6 of picoScan150 or CDB730 terminal 43-21)

The attached SOPAS parameter file (top right corner of this page) must be uploaded to the device. Tutorial “How to load a config file”: https://support.sick.com/sick-knowledgebase/article/?code=KA-10049

The field size of field "Group 1 left/ Group 1 right" and "Group 4 left/ Group 4 right" can be reduced or enlarged. The large fields in group 2 and 3 must be enlarged accordingly. The small field must remain unchanged and keeps the blanking size very large.

Optimization suggestions:

• Outdoor: Activation of echo filter (last echo), fog filter and particle filter
• If the object is too small and is not detected, the blanking size of the directional fields can be reduced and a scan profile with a high angular resolution can be used.
• If the object is too fast and the field is not violated, the response time of the directional fields can be reduced. In addition, a scan profile with a high frequency can be selected.
• If the system is too sensitive, the response time/blanking size of the directional fields can be increased