POSITIONING CONTROL SYSTEM

PURPOSE:To move the control subjects which undergo the movement control at different drive points in the same direction with the prescribed relative position relation secured by applying the relative control to the driving power of each drive means so as to secure a prescribed relative position rela...

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Bibliographic Details
Main Authors TERAMOTO KATSUMI, OBARA KOJI
Format Patent
LanguageEnglish
Published 28.01.1992
Subjects
BUILDING
BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES
CHAMBERS PROVIDED WITH MANIPULATION DEVICES
CONTROLLING
FENCING
FIXED CONSTRUCTIONS
HAND TOOLS
HAULING
HOISTING
HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDEDFOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCEDIRECTLY TO THE SURFACE OF A LOAD
LIFTING
MANIPULATORS
MASTS
PERFORMING OPERATIONS
PHYSICS
PORTABLE POWER-DRIVEN TOOLS
REGULATING
SWIMMING OR SPLASH BATHS OR POOLS
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
TENTS OR CANOPIES, IN GENERAL
TRANSPORTING
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Summary:PURPOSE:To move the control subjects which undergo the movement control at different drive points in the same direction with the prescribed relative position relation secured by applying the relative control to the driving power of each drive means so as to secure a prescribed relative position relation for each drive point in accordance with the correlation among the present positions of those drive points. CONSTITUTION:A signal showing a target stop position Ps of a mobile seat unit is inputted to a position control means 2 from a host sequencer 1 or a control panel 10. The means 2 fetches the position Ps into an axis control means and starts a positioning action. The rising speeds of both ends of the seat unit are different according to the place of installation and the mechanism of the seat unit. As a result, a different of height (present value of each drive unit) is produced between both ends of the seat unit. Thus a difference DIF is obtained among the present values of the drive units. Then the control is carried out based on the difference DIF. As a result, the rise/fall control is ensured for the mobile seat unit without increasing the DIF of height between both ends of the seat unit more than the grant value K and with the approximately same height maintained between both ends of the seat unit.
Bibliography:Application Number: JP19900129322