Using Data Logging and Control

Question 0

Describe the control system?

Answer 0

A computer will receive the inputs from the sensors

A control program in the processor analyses the data and send signal to actuators that control a motor, switch etc.

Question 1

Sensors measure quantities such as…

Answer 1

• Temperature
• Light
• Sound
• Weight
• Stress
• Movement

Question 2

What is a Feedback system?

Answer 2

Control system where the output actions affect the input data, which affect the output actions and so on…

Question 3

Give an example of a control system?

Answer 3

Automatic Doors

1. Start
2. Person approaches the door
3. Sensor detect person
4. Actuator opens door
5. Sensors detect no person
6. Actuator closes door
7. Back to start

Question 4

What is a robot?

Answer 4

Machine that can be programmed to perform a sequence of actions.

Question 5

What can robots carry out?

Answer 5

Repetitive jobs perfectly every time
Dangerous Jobs
Heavy Jobs
Precision Jobs

Question 6

Industrial robots can…

Answer 6

Assemble Parts 
Spray Paint 
Handle machine tools 
Turn Objects 
Lift and Carry Parts

Question 7

What is a simulation?

Answer 7

Is a model of a real system

Question 8

Advantages of using computer control systems

Answer 8

• Computers do not get tired or ill
• Every job is done with exactly the same precision
• They will never go one strike

Question 9

What are the disadvantages of computer control systems

Answer 9

• The computer can only do what it is programmed to do

- If there is a mistake in the programme this will be repeated until spotted

Question 10

What are the advantages of using computer data logging systems?

Answer 10

• Readings can be accurate
• Readings can be taken 24 hrs a day
• Error Free

Question 11

What are the Disadvantages of using computer data logging systems?

Answer 11

• Computers can not easily respond to change

- Data loggers will only be log what they are programmed to Log