METHOD OF AND DEVICE TO CONTROL SAFEGUARD OF LOAD-LIFTING MACHINE Russian patent published in 2005 - IPC

FIELD: materials handling facilities.

SUBSTANCE: group of inventions relates to devices for checking condition of safeguards of load-lifting machines and reading parameters of built-in parameters recorders. Proposed method comes to revealing output signals of separate components of safeguard and transmitting signals to control device, processing signals and their recording in control device according to prestored signals determining sequence of processing and recording and forming, by control device, in case of necessity, replacement test signals in compliance with prestored signals determining sequence of forming of replacement test signals and transmitting the latter to separate components of safeguard. Revealing of output signals and forming of replacement test signals is done by receiving and transmitting sequential digital signals by multiplexed communication line at asynchronous or synchronous modes by algorithms specified by sequential protocols. Proposed device to control safeguard of load-lifting machine contains control unit, data input-output module and memory module. Data input-output module is made in form of transceivers of multiplexed communication line CAN, LIN, RS-232, USB or IrDA of interface. Group of invention provides both control of safety of safeguard and reading of data of built-in parameters recorder making it possible to reveal troubles of connecting bundles, control and diagnosing of condition of safeguard directly on load-lifting crane, improve safety of crane at partial failures of safeguard owing to automatic or manual program disconnection and subsequent replacement of any defective functional unit of safeguard without its physical disconnection and without complete disconnection of partially failing safeguard.

EFFECT: improved control of safeguard.

12 cl, 1 dwg