Priority communication protocol for a distributed...

Details Priority communication protocol for a distributed... Priority communication protocol for a distributed...

2007-05-01

2007-05-01

Lazo, Thomas E. (Department: 3745)

Power plants

Pressure fluid source and motor

Control by independently operated punch card, tape, digital...

C701S050000

Reexamination Certificate

active

11406651

ABSTRACT:
A distributed hydraulic system having a plurality of hydraulic functions each including a hydraulic actuator, a valve assembly that controls flow of fluid to the hydraulic actuator, and a function controller which operates the valve assembly. The function controllers exchange messages over a communication network which has a finite bandwidth. Access to the network is controlled by determining which function controllers govern high priority operations and allowing those function controllers to send messages as often as once every first interval of time. The other function controllers are limited to sending messages no more often than once every second interval of time, which is longer than the first interval of time.

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patent: 2003/0005820 (2003-01-01), Hudson et al.
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