Data Logging and Weather Forecasting Systems

Data Logging and Weather Forecasting Systems

1. Data Logging

   • Readings are taken regularly over a period of time using sensors
   • Readings are taken automatically
   • The logging period can be changed
   • Sensors can be moved
   • Data can be sent and processed by a computer.
   • Data can be analysed
   • Sensors
     • Used to detect and measure physical qualities
       • Heat
       • Light
       • Sound
       • Pressure
       • Humidity
       • Movement
   • Advantages
     • Readings can be taken at the same time.
     • Faster readings
     • No human error
     • 24/7 reading
   • Disadvantages
     • Expensive
     • Equipment malfunction can cause wrong readings

2. Weather Forecasting Systems

   • Data collected by sensors
     • Heat
     • Pressure
     • Rainfall
     • Wind speeds
   • Advantages
     • Data collected automatically
     • Collected at the correct time
     • No mistakes
     • Output can be video/audio
   • Disadvantages
     • Very expensive
     • Malfunction can lead to mistakes

3. Control Systems

   • Control systems decide to make a computer complete a task
   • Security Light Systems
   • Burglar alarm
   • Advantages
     • Operate 24/7
     • Cheaper
     • Works in dangerous places
     • Easy to change the way it works
     • More accurate
   • Disadvantages
     • Initial cost is expensive
     • Can go wrong
     • Unemployment