Introduction
The myDAQ Security System consists of a Pressure Pad and a PIR Motion Sensor. When one of the sensors is activated the outputs are an audible alarm and a flashing (both on the hardware and front panel). The LabVIEW code handles the digital signals coming into the system and writes to file the instances at which each sensor had been activated.
The code behind this system is very basic and ideal for people just getting started with basic Data Acquisition.
Video
Materials
1x myDAQ
1x Speaker/Headphones
1x Pressure Pad
1x PIR Motion Sensor
4x N/O Button Switches
4x LED Lights
Software
The front panel provides the ability to change which sensor is in operation. The options are Pressure Pad, Motion Sensor or Both Sensors. The frequency of the audio can also be changed on the front panel.
The code can be stopped by guessing the correct 4 digit combination. This is inputted via hardware but appears on the front panel. When you stop the code you have essentially deactivated the alarm.
The block diagram has been deliberatly designed so it is easy to understand and use. It is split into top (the acquisition of the digital signals) and bottom (the password matching functionality).
Hardware
Anything that isn't explained here should be explained in the attached video.
This was developed by Michael Parkin NIUK AE Intern 10/11