Fluid distribution to multiple users through distributed intelligence sub-centers

Fluid distribution to multiple users through distributed intelligence sub-centers

New Patents iii 4888707 cameras, the visual navigation will regenerate coordinate of the blocked beacon and provide the necessary navigation comman...

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New Patents

iii

4888707

cameras, the visual navigation will regenerate coordinate of the blocked beacon and provide the necessary navigation commands to the mobile apparatus.

OBJECT COLLISION DETECTION METHOD AND APPARATUS

4888706

Kenji Shimada, Kawasaki, Japan assigned to International Business Machines Corporation

F L U I D D I S T R I B U T I O N TO MULTIPLE USERS THROUGH DISTRIBUTED INTELLIGENCE SUB-CENTERS William F Rush, James E Huebler assigned to Institute of Gas Technology A process and system for fluid distribution from a principal intelligence and fluid distribution center to multiple users through a plurality of distributed intelligence sub-centers. Each distributed intelligence sub-center has intelligence computing, analyzing, decision making, and direction capability to provide control for its portion of the system. The process and apparatus of this invention provides flow control, leak detection, pipe condition assessment, user meter readings, pipeline locator signals, robot control, and pipeline repair and cleaning. The process provides a total system approach providing improved safety and reduced operating costs and is particularly suited for underground distribution of natural gas services.

A collision detection system with less computation time and higher performance is provided. The shortest distance between the surface of one object and the surface of another at the beginning or end of a period to be checked is compared with the sum of the maximum length of paths along which points of the surface of the one object move in the period, and the like of the other. If the former is bigger than the later, then it is sure that the two objects cannot collide in the period. If not, it is not sure, and the period is divided into two parts, and then such a test is done for each partial period. Such a test and division are recursively performed until the whole period is ensured to have no collision or an approximate collision is detected. The approximate collision is defined as a state of the shortest distance between the surface of the one object and the surface of the other being less than a predetermined threshold. This invention is useful in C A D / C A M system in particular for off-line robot movement teaching.

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