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PGV Read Heads

four variants of the PGV read heads for camera-based track guidance

At the heart of the position guided vision positioning systems are the read heads. Consisting of a camera system with an internal illumination unit and powerful signal processing, the PGV and safePGV read heads are rugged and compact. They fit perfectly into even the smallest driverless transport systems (AGVs). With IP67 protection, the PGV and safePGV are also suitable for outdoor use.

Powerful LEDs make the read heads insensitive to environmental influences. Neither extraneous light nor highly reflective surfaces impair the performance of the PGV and safePGV. This means contrast bands are not required. The large reading window combined with 2-D image recording ensures that the read heads reliably detect even damaged or dirty tracking tape.

The PGV positioning system comprises four basic read head versions that are tailored precisely to the different application requirements. The system therefore offers the right read head for every application, from the standard device to the highly specialized safety version.The read heads are available with all common interfaces. Plug-and-play connectivity makes them easy to get up and running along with the code and color tape. The camera is parameterized via the vehicle control unit, a parameterization tool, or code cards.

Portfolio

a green PGV read head

The All-Rounder Read Head

The PGV*F200* offers flexible navigation options using color track tape, Data Matrix code tape, Data Matrix tags, or a combination. This flexibility ensures maximum investment security and future-proofing. Its extra-large reading window, combined with 2-D image capture, reliably detects damaged or dirty tapes, while its ambient light insensitivity over 100,000 lux eliminates the need for extra contrast tapes. The open protocol allows integration with any controller, and the plug-and-play installation ensures easy handling.

the yellow safePGV read head with a blue and red lighting

Safe Navigation to SIL 3/PL e Standard with Just One Sensor

The safePGV read head makes it possible to use a single sensor to achieve safe absolute positioning and identification up to with SIL 3/PL e. It can be used wherever applications have to meet the highest safety requirements—such as when people may come into contact with the plant and when reliably identifying vehicles and plant areas. The unique combination of a special 2-D read head with a multicolor Data Matrix code tape enables the output of secure data directly from the sensor.

the PGV*F213 read head with a grey and black housing and red lighting

Especially Economical and Extra Compact

The PGV*F213 read head has been specially developed for small AGVs and bots in fleet management. The read head works with red light, and navigation is carried out using either Data Matrix tracks or Data Matrix tags. With its compact housing, it is ideally suited for confined spaces in bots and small AGVs. This device variant is also available with an integrated TCP/IP interface, enabling direct connection to PCs or single-board computers for especially cost-effective applications.

a black PGV read head with infrared lighting

The Infrared Version

The PGV*I*F200 uses invisible infrared light. This makes the device version especially suitable for positioning in areas where no visible light may be used. The PGV read head with infrared light uses either Data Matrix tracks or Data Matrix tags for navigation.

Technical Data(Excerpt)

PGV*F200*PGV100A-F200*PGV*F213*PGV*I*F200
    
Traversing speed≤ 8 m/s≤ 8 m/s≤ 8 m/s≤ 8 m/s
Light typeBlue/whiteBlue/redRedInfrared
Depth of focus± 20 mm± 30 mm± 30 mm
-15 mm to +25 mm
± 30 mm
Reading distance100 mm100 mm40 mm
100 mm
100 mm
150 mm
Reading range120 mm x 80 mm120 mm x 80 mm90 mm x 60 mm to
120 mm x 80 mm
120 mm × 80 mm to
170 mm × 105 mm
Cycle time40 ms25 ms10–25 ms10–25 ms
Latency60 ms50 ms20–50 ms20–50 ms
Accuracy± 0.2 mm± 0.2 mm± 0.2 mm± 0.2 mm
Positioning targetsData Matrix code tape
Data Matrix tags
Data Matrix control codes
Color tape
Data Matrix code tapeData Matrix code tape
Data Matrix tags
Data Matrix control codes
Data Matrix code tape
Data Matrix tags
Data Matrix control codes
Other featuresLight control,
synchronization pulse*,
timestamp*,
quality values*
SIL 3/PL eSynchronization pulse,
timestamp
No visible light,
synchronization pulse*,
timestamp*,
quality values*

*only available for EtherCAT versions

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