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US 12,441,374 B2Granted
OHT vehicle traction device and method for recoverying malfunctioned vehicle
AssigneeSemes Co., Ltd.
InventorsKi Sub Yoon, Ji Yoon Jung
Life of this patent
Estimating the term…
Abstract
Proposed are an OHT (overhead hoist transport) vehicle traction device and a method of managing an OHT system using same. The OHT vehicle traction device may solve problems of a driving-malfunction vehicle on the rails of an OHT system or tows the vehicle, and the method of managing the OHT system may increase the management efficiency of the entire OHT system by solving problems of a driving-malfunction vehicle or towing the vehicle in an unmanned type.
Claims10
An overhead hoist transport (OHT) vehicle traction device comprising:
- a moving unit configured to be driven on a rail of an OHT system;
- a wireless power supply unit configured to wirelessly provide power to a driving-malfunction vehicle having a wireless power input unit;
- a traction unit configured to be engaged with a traction jig fastener of the driving-malfunction vehicle to tow the driving-malfunction vehicle;
- a traction jig fastener configured to be engaged with a traction unit of the driving-malfunction vehicle to tow the driving-malfunction vehicle;
- a traction jig controller;
- and
- a malfunction vehicle control unit,
- wherein the traction unit comprises:
- a traction support member protruding forward;
- and
- a traction jig mounted at an end of the traction support member and configured to be fastened to the traction jig fastener of the driving-malfunction vehicle,
- wherein the traction jig comprises:
- a hooked jig configured to be fastened to a ring-shaped traction jig fastener;
- and
- a rotary jig joint connected to an end of the hooked jig and configured to fasten or separate the hooked jig to or from the traction jig fastener by rotating the hooked jig,
- wherein the traction jig controller controls rotation of the rotary jig joint, and
- wherein the malfunction vehicle control unit is configured to:
- control the traction jig controller to couple the traction jig to the traction jig fastener;
- control the wireless power supply unit to wirelessly supply power to the driving-malfunction vehicle;
- wirelessly reset a controller of the driving-malfunction vehicle having a wireless control communication module;
- check whether the controller of the driving-malfunction vehicle is normally operated;
- and
- control the driving-malfunction vehicle via the wireless control communication module so that a brake of the driving-malfunction vehicle is released and a steering device of the driving-malfunction vehicle is controlled.
20 more elements
A method of managing an overhead hoist transport (OHT) system, the method comprising:
- designating, by an OHT control system (OCS), a plurality of transport works to a plurality of OHT vehicles, respectively, wherein the plurality of OHT vehicles include a plurality of first type OHT vehicles having an OHT vehicle traction device and a plurality of second type OHT vehicles without an OHT vehicle traction device;
- distributing, by the OCS, the plurality of first type OHT vehicles and the plurality of second type OHT vehicles at a predetermined ratio for each transport section;
- recognizing a driving-malfunction vehicle having a problem on a rail of the OHT system;
- designating, by the OCS, an OHT vehicle traction device by giving an instruction to the OHT vehicle traction device to solve the problem of the driving-malfunction vehicle, wherein the designating of the OHT vehicle traction device includes choosing one of the plurality first type OHT vehicle which is close to the driving-malfunction vehicle among the plurality of OHT vehicles;
- approaching the OHT vehicle traction device to the driving-malfunction vehicle;
- wirelessly supplying power to a wireless power input unit of the driving-malfunction vehicle and wirelessly resetting a controller through a wireless control communication module of the driving-malfunction vehicle, by the OHT vehicle traction device;
- and
- checking whether the controller of the driving-malfunction vehicle is normally operated, by the OHT vehicle traction device.
5 more elements
Dependencies are inferred from the claim text.