flow control


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flow control

[′flō kən‚trōl]
(engineering)
Any system used to control the flow of gases, vapors, liquids, slurries, pastes, or solid particles through or along conduits or channels.

flow control

Measures designed to adjust the flow of traffic into a given airspace, along a given route, or bound for a given aerodrome, so as to ensure the most effective utilization of the airspace (ICAO). ATC (air traffic control) may apply restrictions to the flow of air traffic to ensure that the elements of the common systems, such as airports or airways, do not become saturated.

flow control

(communications, protocol)
The collection of techniques used in serial communications to stop the sender sending data until the receiver can accept it. This may be either software flow control or hardware flow control. The receiver typically has a fixed size buffer into which received data is written as soon as it is received. When the amount of buffered data exceeds a "high water mark", the receiver will signal to the transmitter to stop transmitting until the process reading the data has read sufficient data from the buffer that it has reached its "low water mark", at which point the receiver signals to the transmitter to resume transmission.

flow control

(1) The management of transmission between two devices such as nodes in a network or between the CPU and peripheral devices. It provides notification to the sending device to slow down or speed up data transmission or data transfer due to the receiving device's current ability to keep up with it. Flow control also enables slower-speed devices to communicate with higher-speed ones and vice versa. See xon-xoff.

(2) In programming, the if-then and loop statements that make up the program's logic.
References in periodicals archive ?
Tyco Flow Control solidified its commitment by continuing to invest and optimize its critical system solutions to meet the needs of customers around the globe, regardless of their requirements of code, reactor type or end-user market.
Under the city's flow control proposal, 900,000 tons of additional commercial waste would be delivered to Southern Dallas each year creating additional traffic as well as thousands of additional diesel trucks operating around the landfill.
The specification now includes direct support for flexible multi-frequency clocking, support for two-dimensional block burst sequences, new non-blocking (exact) flow control options, more flexible reset behavior, a new security profile to describe the consistent mapping of security-related information, and a new section dedicated to verification.
July 20 /PRNewswire/ -- Tyco Flow Control, a unit of Tyco International, today opened its Advanced Nuclear Testing & Development Facility, one of the largest testing facilities of this type in the world, in Mansfield, Massachusetts.
One Ring Networks, provider of next generation end-to-end telecommunications services, addressed these problems today when it announced the deployment of the Internap Flow Control Platform([TM]) (FCP), a premise-based appliance that proactively optimizes network traffic.
announced today that its Flow Control business has acquired two Brazilian valve companies in a move to expand its product and service offerings in Brazil and South America.
The pairing of AutoFarm and Raven technologies allows Raven customers to easily add assisted steering to their tractors, sprayers and harvesters," says Dan Rykhus, general manager Raven Flow Control Division.
The merger between Tyco's Flow Control business and Pentair will be submitted to a vote of Pentair shareholders and the proposed distribution of The ADT Corporation and Tyco Flow Control to Tyco shareholders will be submitted to a vote of Tyco shareholders.
Recently patented, Sendmail Flow Control is designed to increase ROI by dramatically reducing message volume - from unwanted messages and attacks - prior to filtering or mail store handling.
Sendmail is a registered trademark and Flow Control are trademarks of Sendmail, Inc.
HOUSTON -- Tyco Flow Control (TFC), a leading provider of valves, actuators and controls, has significantly expanded its Morin scotch yoke product offering.