Input-Output-Process Demo Burglar Alarm System 19/02/2019
Possible Sensors Light Sensors Sound Sensors Motion Sensors Temperature Sensors and many more …. 19/02/2019
The average temperature of a human programmed into the processor. Input Processor Preset Value: The average temperature of a human programmed into the processor. 19/02/2019
Input Measurement Processor The monitoring of physical variables without the microprocessor taking action. Temperature readings Temperature Sensor Processor 19/02/2019
Compares current temperature with preset value Processing Processor Compares current temperature with preset value 19/02/2019
If current temperature > preset value When a microprocessor takes action depending on sensor readings. Processing Control Signal Alarm On Processor If current temperature > preset value Burglar detected Call Police Signal 19/02/2019
Output Alarm On Call Police 19/02/2019
The process is continuous and so repeats. Output Processor If current temperature < preset value Do nothing 19/02/2019 The process is continuous and so repeats.
Notes: Input: Processing: Output: Sensors sending readings. Processing: Microprocessor comparing the preset value with the current sensor readings. If higher / lower then microprocessor decides to switch a device on / off. Output: Devices actually being switched on or off. Sensors do not compare or decide to switch anything on or off, they only send current readings. 19/02/2019