Process control system using remote computer and local site cont

Details Process control system using remote computer and local site cont Process control system using remote computer and local site cont

Filed on

1986-12-24

Date issued

1990-04-10

Examiner

Jablon, Clark A.

Patent Class

Boots, shoes, and leggings

Other Related Categories

364131, 364162, G06F 1546, G06G 758, G05D 1102, G05D 1108

Type

Patent

Status

active

Patent number

049166310

Description

ABSTRACT:
A process control system for mixing a proppant with a fluid includes a remote control computer located remotely from where the process is to be performed, and a monitor computer and a local control computer both located where the process is to be performed. An LAN cable connects the remote control computer to the monitor and local control computers. The desired concentration value of the proppant in the fluid is entered into the remote control computer. The monitor computer sends measured values to the local control computer which generates a control signal to a sand screw to provide the desired concentration value.

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