Patent ID: 11900779
Assignee: ABB SCHWEIZ AG
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. The system according to claim 1, wherein the personnel safety state comprises one of:
a) the equipment outer envelope is undisturbed and no person is detected,
b) the equipment outer envelope is undisturbed and a person is detected within a distance X,
c) the outer envelope is disturbed and no person is detected within the distance X,
d) the outer envelope is disturbed and a person is detected to have just entered a vicinity of the power distribution equipment,
e) the outer envelope is disturbed and a person is detected to be within the distance X,
f) the outer envelope is disturbed and a person has been detected to have just left the vicinity of the power distribution equipment,
g) the outer envelope is disturbed and no person is detected and at least one work item is detected within the distance X that was brought in by a person and the person is not detected for a duration<T.