Vigilance Control
The main safety failing with the basic dead man’s system is the possibility of the operating device being held permanently in position, either deliberately or accidentally. Vigilance control was developed to detect this condition by requiring that the dead man’s device be released momentarily and re-applied at timed intervals.
There has also been a proposal to introduce a similar system to automotive cruise controls.
A hybrid between a dead man's switch and a vigilance control device is a dead-man's vigilance device.
Read more about this topic: Dead Man's Switch
Famous quotes containing the words vigilance and/or control:
“I met a Californian who would
Talk California—a state so blessed
He said, in climate, none had ever died there
A natural death, and Vigilance Committees
Had had to organize to stock the graveyards
And vindicate the state’s humanity.”
—Robert Frost (1874–1963)
“Grown-up people do very little and say a great deal.... Toddlers say very little and do a great deal.... With a toddler you cannot explain, you have to show. You cannot send, you have to take. You cannot control with words, you have to use your body.”
—Penelope Leach (20th century)