Creating a completed control system Lesson 5&6 Creating a completed control system

Lesson Objectives To understand that working control systems contain many flow charts that work alongside each other To apply flow chart knowledge when creating a working control system

Control Technology in everyday life Think about a control system that is used every day. How many different inputs and outputs can you name?

Example Burglar Alarm Input Output Senor on window Movement sensor in every room Pressure sensors Lock sensors Output Sound alarm Flashing lights Automatic response from police

Working Together All of these inputs and outputs are controlled with a complex system of flow charts. Over the next 2 lessons you will be using the train mimic to simulate a realistic train route

There are various trip points around the track There are various trip points around the track. We can use this to sense where the train is. What might happen when the train reaches A? What might happen at trip D?

Step 1: Making the train move Input 1 will act as a button. When we press it the train will move forward.

Step 2: Opening and closing the barriers. In the simulation there are several trip points. These are sensors which sense when the train is passing Which trip point should we use to sense if the train is on its way? Which trip should we use to sense that the train has passed the crossing?

Step 3: Slowing at the platform A train slows down every time it goes through a station, even if it doesn’t stop. We can slow down the motor using the trip points

Step 4: What important part of the train simulation are we missing? There are a number of things that we can do in order to improve it.

Extension Open the mimic called Train Set 2. But there are lots of differences. 2 more trip points and another train to control! Open the mimic called Train Set 2. There are many similarities including the barrier tunnel and trip points