Abstract: A system for characterizing the environment and objects in the environment created by fusing a plurality of sensor data, comprising a plurality of radar sensors each radar sensor integrated into a wireless module. A processor is operatively connected to the plurality of radar sensors and to a memory, wherein the memory includes instructions recorded thereon that, when read by the processor, cause the processor to combine the sensor data to identify, monitor and characterize the environment and objects within the environment.

Abstract: The invention is an end curtain for gymnasium seating which has a generally triangular piece of flexible fabric which is secured to the wall of the gymnasium at the back end of the seating, and which is attached to the lower front end of the seating. The fabric has a cable or sturdy cord which is enclosed in a seam of the fabric along its longest (hypotenuse) side. The cable or cord in the hypotenuse side of the fabric is connected to the side edge of the seating by a plurality of looped hangers which pass through the fabric and around the cable or cord. This way, the weight of the fabric, chains, cables and or cords is distributed among the many hangers. Also, the looped hangers are adapted to not bind the cable or cord tightly. This way, the cable or cord in the seam of fabric along the hypotenuse side has enough give or travel through the many hangers to be flexible and not bind up or tear out at any particular hanger location.