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Question 7

An automated testing facility uses an embedded control system to manage an experimental 3-lap hydrofoil drone speed trial. The closed-loop circuit is exactly 150 metres long, meaning a full trial consists of exactly 3 laps (total 450 metres).

The control system is linked to the following peripherals:

  • Electromagnetic docking platform (with contact and pressure sensors to verify the drone is docked and stationary)
  • Hydraulic launcher and starter siren
  • Emergency arrestor barrier and red strobe warning light
  • Laser break-beam sensor at the start/finish line timing gate
  • Digital master clock display

Create an algorithm to manage the control of this 450-metre (3-lap) speed trial using the peripherals listed.

Use a structured written description (or structured English) for your algorithm.

[6]
Markscheme

Algorithms Questions

  1. GCSE
  2. /Computer Science
  3. /Algorithms

159 exam-style questions on Edexcel GCSE Computer Science Algorithms, covering Constructs for solving problems, Variables, constants and data structures, Arithmetic, relational and logical operators, Tracing algorithm output with trace tables, Types of error and correcting logic errors, Standard algorithms (sorts and searches), and Evaluating algorithm fitness and efficiency. Each one has a worked solution and a mark scheme showing where the marks go.

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