IP Library Granted Patent US 7,809,468
Granted Patent B2
US 7,809,468 · App. 11/895,742 · Granted Oct 5, 2010

Transportation state notification system and method, program, and information storage medium

Assignees: Seiko Epson Corporation; OMRON Corporation
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Quick Facts
Patent No.
US 7,809,468
App. No.
11/895,742
Granted
Oct 5, 2010
Kind
B2
Abstract

A server includes a communication section which receives event information from an event detection device which detects a plurality of types of events occurring in a plurality of temporary storage devices provided at different locations, and transmits transportation load display information to a PC, a storage section which stores lot state data indicating states of lots and storage state data indicating states of the temporary storage devices, an update section which updates the lot state data and the storage state data based on the event information, and an information generation section which generates transportation load display information for notifying a lot transportation state to the user based on the lot state data and the storage state data.

Claims (15)

1. A transportation state notification method, comprising:

detecting a plurality of types of events relating to lot transportation in a plurality of temporary storage devices which are provided at different locations, to which lots are transported, and in which the lots are stored;

updating lot state data including data indicating an event transition of each of the lots based on the detected events;

determining whether the lots are in an under transportation state or an awaiting transportation state based on the data indicating the event transition, and displaying an image showing a state of a target lot at a predetermined time as an image showing a transportation load state;

calculating a transportation load index based on a ratio of a total number of the lots to a number of lots in the under transportation state; and

displaying an image showing the transportation load index as the image showing the transportation load state.

2. The transportation state notification method as defined in claim 1 , comprising:

predicting and notifying the transportation load state based on step data indicating a processing step performed for each of the lots.

3. A transportation state notification method, comprising:

detecting a plurality of types of events relating to a lot transportation in a plurality of temporary storage devices which are provided at different locations, to which lots are transported, and in which the lots are stored;

updating lot state data including data indicating an event transition of each of the lots based on the detected events;

determining whether the lots are in an under transportation state or an awaiting transportation state based on the data indicating the event transition, and displaying an image showing a state of a target lot at a predetermined time as an image showing a transportation load state,

wherein the plurality of types of events include an inter-storage-device transportation event indicating that a lot has been sent from one predetermined temporary storage device to another temporary storage device, a lot arrival event indicating that a lot has arrived at one predetermined temporary storage device from another temporary storage device, a processing device transportation event indicating that a lot has been sent from the temporary storage devices to a processing device of the lots, and a processing completion event indicating that a lot has arrived at the temporary storage device from the processing device,

updating storage state data indicating a lot storage state in the temporary storage devices based on the detected events; and

determining whether the lots are in an under acceptance state indicating that a lot is waiting for the temporary storage devices at a transportation destination to become free, the under transportation state, or the awaiting transportation state based on the data indicating the event transition and the storage state data, and displaying the image showing whether the lots are in the under acceptance state, the under transportation state, or the awaiting transportation state.

Assignments (2)
DE-MERGER Recorded May 20, 2022
From: OMRON CORPORATION
To: SHIGA SEMICONDUCTOR CO., LTD.
Reel/Frame 060132/0451 →
CHANGE OF NAME AND ADDRESS Recorded May 20, 2022
From: SHIGA SEMICONDUCTOR CO., LTD.
To: MMI SEMICONDUCTOR CO., LTD.
Reel/Frame 060132/0466 →
Priority Claims (1)
JP 2004-015151 · Jan 23, 2004 · national
Continuity (2)
Division 1104099800 · Jan 21, 2005
Related Publication 20080021594A1 · Jan 24, 2008