Robot Control Principles · SHS2 Robotics

Lesson notes

Learning Objectives

Indicator: 2.1.2.LI.1 - Analyse scenarios and derive mathematical models for implementing continuous-time machines.

By the end of the lesson, learners can:

Identify the key components of a continuous-time control system (input, output, error, controller, plant) from a written scenario.
Analyse a given automation scenario to determine whether error detection and correction or error avoidance is the appropriate control strategy.
Derive the error detection and correction equation (error = setpoint - measured output) for a continuous-time system described in a scenario.
Formulate error avoidance equations (predictive correction) for scenarios where disturbances must be anticipated before they occur.
Justify the choice of a control equation for a specific automation requirement using logical reasoning.

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Curriculum details

Strand: Principles of Robotic Systems (Strand 1)
Sub-strand: Robot Control Principles (1.2)
Content standard: 2.1.2.CS.2 - 2.1.2.CS.2 Demonstrate mathematical and logical modelling skills in the implementation of controls for automation and robotics. 2.1.2.LO.2 Formulate arithmetic and logical models for continuous-time and finite-state machines.
Indicator: 2.1.2.LI.1 - Analyse scenarios and derive mathematical models for implementing continuous-time machines.
Suggested placement: Semester 1, Week 11 (Week 11 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: NaCCA curriculum document, p. 89

Exemplars (from the NaCCA curriculum)

Initiating Talk for Learning: Introduce learners to the principles of continuous-time system automation for "error detection and correction" and "error avoidance". In pairs, learners analyse the given requirements of automation systems and formulate the "error detection and correction" and "error avoidance" equations required for automation. Pairs share their findings with the class for comments.

Assessment (2.1.2.AS.1). The document marks these depth-of-knowledge levels for this indicator: Level 2 Skills of conceptual understanding; Level 3 Strategic reasoning.

Teaching and Learning Resources:
- Online resources
- Textbooks
- Videos
- Pictures
- Charts
- A built robot
- A commensurate robot actuation platform
- Requirement documents