Question: Design Communication to sequence Diagram of below case study?

Case Study

A computer-based Work force System can move along a track in the workshop in a clockwise Direction, and start and stop at workshop stations. The Work force System has the following characteristics:

1. An engine, which is commanded to Start Moving and Stop Moving. The engine sends Started and Stopped responses.

2. An arrival sensor to detect when Work force System has arrived at a station, e.g. Arrived at station x. If this is the destination station, the Work force System should stop. If it is not the destination station, the Work force System should continue moving past the station.

3. A robotic arm for loading and unloading a part onto and off of the Work force System. The Work force System receives Move commands from an external commanding System. It sends vehicle feedback to the commanding system indicating that is has started moving, passed a station, or stopped at a station. The Work force System system also sends vehicle status to an external show System every 40 seconds. It is given that the arrival sensor is an event-driven input device and that the engine and arm are passive I/O devices. It is also given that the Work force System communicates with the commanding System and show System by means of threads.