Workshops on State Charts
Workshop: Online Classroom
The following dynamic rules apply to participants of an online interactive telepresence forum, such as Blackboard Elluminate or WizIQ. Model the rules using state charts and identify unresolved issues that must be clarified. Formulate questions for subject matter experts.
WizIQ allows instructors to teach classes online. The platform provides audio through a VOIP connection, video, chat facility, slide projection, and an interactive whiteboard plus screen and application sharing. Participants must have an account and log on before they can join a class, although it is possible for participants to log in without creating an account. The class must be in session in order to for participants to join. Participants that logged in without creating an account may not participate in chats.
To speak to the instructor or to fellow participants, the participant must be in "talk mode". To get to talk mode, the participant presses the "Talk" button. Only a single participant may in talk mode at any time (in addition to the instructor).
When the instructor logs out, all participants are automatically logged out as well.
WizIQ allows instructors to teach classes online. The platform provides audio through a VOIP connection, video, chat facility, slide projection, and an interactive whiteboard plus screen and application sharing. Participants must have an account and log on before they can join a class, although it is possible for participants to log in without creating an account. The class must be in session in order to for participants to join. Participants that logged in without creating an account may not participate in chats.
To speak to the instructor or to fellow participants, the participant must be in "talk mode". To get to talk mode, the participant presses the "Talk" button. Only a single participant may in talk mode at any time (in addition to the instructor).
When the instructor logs out, all participants are automatically logged out as well.
Workshop: Autopilot
Autopilots are used to steer a boat automatically towards a destination. Initially, an autopilot is in standby mode where it does not steer. Placing the autopilot into automatic mode causes the autopilot to send controls to the steering unit to keep the boat on the current heading. While the autopilot is in automatic mode, the steering wheel is unresponsive. Should the boat run towards an obstruction, the operator can place the autopilot into dodge mode where the steering is responsive until automatic steering is engaged again. Finally, the chartplotter can be used to plot a course towards a waypoint. The waypoint heading can be sent to the autopilot which places the autopilot into tracking mode after the track button is pressed. At any time, the autopilot can be returned into standby mode by pressing the standby button.
Here's an example of a typical small vessel autopilot. The device shown is a Raymarine ST70.