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Traveling vehicle system

A traveling vehicle and instruction execution technology, applied in the field of traveling vehicle systems, can solve the problems of unfinished, double traveling vehicles, etc.

Inactive Publication Date: 2009-09-16
MURATA MASCH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in case a fault occurs after the transfer order is reported complete and before the transfer order is actually completed, the transfer order is completed on the data, but not actually completed
Also, if the next delivery order is received before the delivery order is actually completed, there will be cases where the trolley is double-assigned the delivery order

Method used

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Examples

Experimental program
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Embodiment

[0031] Figure 1 ~ Figure 4 The walking vehicle system of the embodiment is shown in FIG. Among the figure, 12 is ground side controller, and it manages a plurality of walking vehicles 14, in figure 1 A trolley 14 is shown in the figure. The trolley 14 is a stacking crane, an unmanned transport vehicle, a rail trolley, a bridge trolley, etc., travels along the travel path 15, and has a sliding fork or a SCALA (scala arm) transfer device 22. A plurality of workstations 16 are provided along the traveling path 15 , and the traveling vehicle 14 delivers articles between the workstations 16 and a shed or the like of an automatic warehouse (not shown).

[0032] The station 16 has a communication interface 17, communicates with the communication interface 18 of the trolley 14, requests delivery of the article from the interface 18 side before handing over the article, and answers whether the handover can be performed from the interface 17 side. This job is called an interlock. ...

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PUM

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Abstract

The invention provides a traveling vehicle system, transport instruction is allocated for a traveling vehicle from a controller to carry out the transportation and handover of objects. The controller sends delivery reservation for the traveling vehicle before the finishing report of transport instruction from the traveling vehicle is received, the delivery reservation instructs the following delivery destination but not instructs handover, and, the following transport instruction is sent if the finishing report is received. The transport instruction is reported to the controller if the transport instruction is finished, and the traveling is carried out to the delivery destination instructed by the delivery reservation if the delivery reservation is received after the transport instruction is finished. The traveling vehicle does not have a stopping period of time for awaiting the instruction from the controller, and cannot generate the moment of doubly holding the transport instruction by the traveling vehicle.

Description

technical field [0001] The present invention relates to bogie systems, and more particularly to problems caused by communication delays between bogies and groundside controllers. Background technique [0002] Usually, the traveling vehicle travels by being assigned a transport command from the ground-side controller, and reports this to the controller after completion of cargo unloading or cargo loading. Figure 5 The timing of distribution of the transport command in the conventional example is shown in . The ground side controller 2 sends a conveying instruction to the trolley 4 at time t1, and the trolley 4 receives and starts executing the conveying instruction at time T1, completes and reports the conveying instruction at time T2, and the controller 2 receives it at time t2. The controller 2 sends the next transport command at time t3, and the traveling vehicle 4 receives it at time T3. In this way, the traveling vehicle 4 waits for an instruction from the controller 2...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04B65G1/00B65G1/137G05D1/02G06Q10/08
CPCH04Q9/04H04Q2209/40G06Q10/08
Inventor 小林笃
Owner MURATA MASCH LTD
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