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• Rail road crossing obstacle detection system

• Non contact method and independent of materials of obstacles
• No cables or sensors in the ground makes installation very easy
• No reflex and beam size problems like radar systems and ultrasonics
• Good operation in rain and snow by smart detection technology
• Infrared laser scanner with very high pin point accuracy
• Range up to 100 meter out door and in door operation
• 180 or 60 degree FOV scanning systems
• Can see a laying person between the rails at long distance
• Fail safe system option fulfilling rail road signal standard demands
• Optional built in camera with outputs for wireless image to locomotive
• Very little maintenance and service
• Design life time over 10-20 years
• Patent protected in most major countries

This technology is the only available system based on optics which is fail safe according to rail road regulations and demands. Radar and inductive systems have not been able to fully meet the hard requirements by rail road authorities. They can never be fail safe.

Technical specifications of LaserGrabs LRP series laser radar systems

• Laser safety class Class 1
• Vawelength 905 nm in the near IR vawelength area
• Max range of laser distance meter 300 meters but application recommends less than 100 meters
• Beam diameter at exit is 20 mm and at 100 meters distance 35 cm
• Minimum size of detectable object at 100 meters distance and at a light gray surface is 100x150 mm
• Measurement speed of laser distance meter unit 1000 Hz while scanned in one axis
• Scanning angle adjustable from zero to 60 degree mechanically along a horizontal line over the area
• Scanning speed 1 Hz / cycle independant of angle
• Scanner based on an oscillating mirror design with very long service intervalls
• Responce time to see a person or obstacle is 3-5 sec depending on settings and distance
• Max distance in bad weather. If you can person clear you can measure
• Dimensions 350x500x150 mm in a steel cabinet. Sheet thickness 2 mm
• Encapsulation IP 62 and weight of complete system is about 12 kg
• Operating voltage 18-32 volt DC and power consumption is max 100 WA without heater
• Power consumption of integrated heater is 100 W below 5-10 degrees C in ambient temperature
• System is CE marked to highest level of RF noise

LaserSnap Person protection scanning models

• SVP100-1000 standard model 100 meter range and 1000 points per sec laser distance scanner
• SVP100-1000FS Fail safe model 100 meter range and 1000 points per sec scanner. Fail safe outputs.
• Platform ladar solutions. detailed spec and information about this application. PDF file

Links to related pages

• Larger image of top drawing with additional text and comments. Pls click
• PLS 60 laser radar scanner with 60 degree scanning angle.
• PLS 180 laser radar scanner like this but with 180 degree scanned area
• Installation ideas of PLS series of laser radar scanners for platform safety applications
• LP 300 series of laser perimeters which can detect obstacle along a line from a single point. Laser distance meter based unit
• Obstacle detection system for detection under bridges
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