No.

Name

Communication

Control technology

Modification

Operation

1

This Paper

Two-way

Robust & wireless

Possible

Digital

2

Ref [12]

Two-way

Robust

Possible

Digital

3

Ref [17]

Two-way

Robust

Possible

Digital

4

Ref [19]

Sensor based

Robust & wireless

Possible

Digital

5

Ref [23]

Multi-way

Robust

Possible

Digital & self-monitoring

6

Ref [25]

Two-way

Robust

Possible

Digital & self-monitoring