R2100 Multi-Ray LED Scanner

The Robust and Reliable Sensor for Saving Energy with Shutters

Pepperl+Fuchs: The opening height of shutters has a significant impact on the energy efficiency of a building. This is a widely agreed fact that has been proven in numerous studies. But there is one aspect that still remains unclear: How far should a shutter actually open? The R2100 Multi-Ray LED Scanner presents a brand new solution to this problem: In contrast to laser scanners, which were previously at the center of all solutions, the R2100 is completely resistant to mechanical stresses, such as vibration or shock loads, because the device works without moving parts. 

With its eleven emitter LEDs, which are arranged side-by-side, the R2100 Multi-Ray LED Scanner covers a fan shaped measuring area with an opening angle of 88° and a detection range of up to eight meters on natural targets. In this two-dimensional area, the device can determine the position of objects relative to the sensor via their angle and distance.

An essential criterion for the performance of the system is the use of Pulse Ranging Technology (PRT). The ultra-short, high-energy light pulses emitted by the sensor are reflected to the objects in the environment and return to the sensor where they are detected by a light-sensitive receiver element with a high level of precision. From the light pulse flight times determined, the evaluation electronics use the speed of light to calculate the exact distance to the objects.

The device is mounted on the shutter and moves up and down as the shutter operates. While the shutter is opening, the scanner determines the height of the object or vehicle in front of the shutter. If the object moves away, the shutter control system halts the opening process.

Multiple sensors can easily be fitted on very wide shutters, as there is no interference between the units.

At a Glance:

• Energy efficiency of industrial buildings can be significantly increased
• Measurement with LEDs ensures a long service life
• Pulse Ranging Technology guarantees the highest levels of reliability
• Lack of moving components in the sensor ensures maximum mechanical strength