How people choose an alarm system and what should it do?
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- #1114
- 15 Feb 2019
Alarm systems have several major functions. One is to inform guards and civilians that there is something wrong going on. But why should alarms be so shrilly and annoying?
Imagine you are an unexperienced robber. You are under great pressure as you are committing your first robbery. Your hands are shaking, your stomach even hurts. Out of a sudden, an alarm goes off. Imagine it has the sound of a loving popular song which does not disturb you at all. You steal your marked objects and leave the place. On the contrary, the alarm is extremely shrilly, lights start flashing and you immediately panic and start making mistakes which the guards take advantage of to catch you.
The second function of alarms is to namely cause terror in robbers and panic them. That is why alarms should be as loud and annoying as possible.
Courses and lessons with this Tutorial
This Tutorial is used in the following courses and lessons
Robotics with LEGO - Level 3.0 - Security systems
This is the fifth level of the Robotics with LEGO curriculum for students in fifth to twelfth grades.
In this level students will learn how to work with data measured by the sensors. The concept of Algorithm is introduced and the programs perform calculations without knowing the values beforehand. The programming blocks transfer data between each other via data wires. The robots are designed to address the problems of security systems. Variety of alarm systems are built and the physical principles of different security methods are considered.
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Lesson 1 - Smart security plates
Introduction: Museum Security
Did you know that some pieces of art, for example statuettes, have a really high price, sometimes reaching millions of dollars/euros? This is one of the main reasons why such pieces of art are so tempting for robbers. In order to prevent them from being stolen, various alarm systems for museums and galleries have been developed over the years. Nevertheless, when one has a clear goal, one becomes exclusively crafty, especially when talking about robbers. In this lesson we are going to focus on various security devices and the ways robbers can be caught/ hacked. Will we manage to come up with the most secure system?
Today we are going to build security devices for a museum with highly valuable exhibits. The aim of our robots will be to detect whether there is an intruder in the museum hall and whether the exhibit is on its stand. For the purposes of our lesson, we are going to use a mobile phone or the robot’s brick as an exhibit.
Later, we are going to use the already programmed stand to play Indiana Jones and try to steal the valuable statuette without being detected. Then, we will move to something more practical – namely, we’ll try to automate a store.
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