Hitachi, Ltd.

Kyoto University

Hitachi Transport System, Ltd.

Satoshi Nagahara

Hisaya Ishibashi

Takahiro Nakano

Hideaki Suzuki

Yoichi Nonaka

Shinji Hasebe

Issei Suemitsu

Osamu Tonomura

Manabu Kano

In a conventional manufacturing line simulation, there are a number of input items, and therefore, time is required for input. In addition, depending on the objective of the simulation, there are also parameters for which input is not required, and therefore, there is the problem of reducing the number of inputs according to the library. The present invention is configured to be provided with: a simulation library presentation unit which presents, to a user, a plurality of items of model libraries which are stored in a storage unit so as to receive specification of items of the model libraries from the user; a priority degree imparting unit which, with respect to the specified items of the model libraries, uses an input association table stored in the storage unit in order to calculate the priorities of the input items so as to present an input screen to the user on the basis of the calculated priorities; a simulation input receiving unit for receiving input of the input items on the user screen; and a duplicate data generation unit which, with respect to the duplicate items indicated in the input item association table, duplicates data that has been already received at the simulation input receiving unit.

Manufacturing line simulation device, data input assistance device, and data input assistance method

A shipping order allocation apparatus creates a group composed of shipping orders; acquires a time to start picking for the group; acquires blocks where articles included in the group are stored and calculates a total worktime for the picking of the group; determines whether the picking work for the group is completed by the earliest shipping time limit among shipping time limits of the shipping orders in the group, the time to start the picking, and the total worktime for the picking; calculates an evaluation value of the group for which the picking work is determined to be completed by the earliest shipping time limit, based on the blocks storing the articles included in the group; and determines whether to include the group in a result of allocation to groups, based on the evaluation value.

Shipping order allocation apparatus

The operation-time calculation device is configured such that the following processes are performed: a process in which operation-data information, work-time information, and operation-time information are stored in a storage unit, an input unit receives from a user parameter input at least including steps to be aggregated, aggregation start time, aggregation finish time, and aggregation unit time period, and a controller sets the aggregation time period on the basis of the parameters that were input; a process for converting total work time of the steps to be aggregated in each aggregation time period and the corresponding operation time using an operation-time conversion coefficient and calculating total operation time of the steps to be aggregated in the aggregation time period; a process for calculating the differential between total work time of the aggregation time period and total operation time; and a process for changing the operation-time conversion coefficient to minimize the differential.

Operation-time calculation device and method for calculating operation time

The present invention provides a fluid distribution device for uniformly distributing and outputting a fluid, which is supplied to an input flow channel, into at least three output flow channels, comprising a plurality of branch flow channels, at least three fluid bifurcation portions, and at least one fluid converging portion, wherein the fluid distribution device is configured to correspond to a pressure drop compartment connection model composed of a fluid balance equation and a pressure balance equation. Furthermore, the present invention provides a micro plant using the fluid distribution device, a method of designing the fluid distribution device and a method of detecting blockage of flow channels of the fluid distribution device.

Fluid distribution device, micro plant, method of designing fluid distribution device, and method of detecting blockage of flow channel

The present teaching is intended to observe the delivery date of a product and decrease the number of workpieces in a merger process. A treatment sequence calculator included in manufacturing instruction equipment identifies an in-process part being worked in each process, and calculates the delivery-date allowance of the in-process part. In-process parts whose delivery-date allowances fall below a predetermined threshold are inputted to each process in ascending order of delivery-date allowances. In-process parts whose delivery-date allowances are equal to or larger than the predetermined threshold are inputted to each process in ascending order by a minimum value of remaining treatment times which the in-process parts take to reach the merger process.

Growing community of inventors

Tokyo, Japan

Satoshi Nagahara