A connecting arrangement for a motor vehicle wheel suspension, with a spring plate for receiving a vehicle spring, a joint and a connecting strut, which is articulated to the spring plate by way of the joint. The device rests on top of the partially closed mouth of the trash bag and is secured in place by the bag’s drawstrings. For a period of time, that one node counts the number of retransmissions of the multicast packet that the node receives from one or more other nodes in the network. A ball idler is positioned above each drive roll providing media normal force. When an obstacle is detected by obstacle sensors, the caution-image generating unit extracts an image of those stored in an image memory, in an area including a part of the vehicle and the obstacle, generate a caution image, and displays the caution image at a position on the overhead image via the display processing unit corresponding to the position of the obstacle.