Hitachi, Ltd.

Hideaki Matoba

Masahiro Watanabe

Mitsuhiro Enomoto

Takahiro Tsukishima

Hisashi Onari

Masahiro Sato

Yoshinao Arai

Kichie Matsuzaki

Tetsushi Tomizawa

Mitsuharu Hayakawa

Hidetoshi Inaba

Hideaki Suzuki

Koichi Sugimoto

Yoshio Matsumoto

Shunji Mohri

Masaru Ishikawa

Toru Mita

Masahito Uno

Ichiro Taniguchi

Kaoru Imai

A method or device for computing material requirements which calculates various parts and materials necessary for products to be produced when a production plan is input, in order to reduce the processing time for a material requirements computation. In order to establish the object, the method or device of computing material requirements is provided, which can perform a parallel process without using conventional low level codes. Parts computing means are respectively assigned to items. When the lower parts computing means receives the computation result of the upper parts computing means, it independently executes the computing process if the computation result is sufficient for the parts computation. The process rate of the material requirements computation can be improved by performing the load distribution under a fixed rule, including that to which computer the data of an item is loaded or by which computer an item is processed, when the material requirements are computed in parallel process using plural computers.

Method and device for computing material requirements

In a production planning system, the explosion of a product to parts is performed by a specification check device and a design passage judgement device. An MRP calculation control device, a leadtime forecasting device, an MRP explosion calculation device, a work load calculation device and a data input/output device cooperate to estimate a shop load and to calculate a leadtime with a work load and a production capacity taken into consideration, thereby drawing up a production plan. A problem area analysis device analyzes a problematical area in the production plan to display it by graphics of the data input/output device. Various adjustment devices carry out the adjustment of the production plan through a graphic interface.

Production planning system

The present invention relates to a manufacturing system which accepts a custom order of product from a customer and custom manufactures a product without sacrificing manufacturing efficiency. The manufacturing system includes the featuring steps of inputting the required specification of a product, creating the product design based on the design information of the product transmitted from a designing department, status data from the production department, and the input required specification, showing the created product design to the customer, selectively indicating a product to be purchased, transmitting the specification of the selected product to the production department, and producing a product based on the selected product specification.

Custom-made manufacturing system and custom-made manufacturing method

Order entry apparatus for automatic estimation a transformation model comprising a pattern composed of a plurality of parameters representing custom product specifications, production line conditions and factors for composing the estimates for production cost and completion date. The parameters of this transformation model are specified by learning, leading to estimation for the requested product specifications, in broad consideration of conditions such as those of the production line. The use of a neural network model as this pattern transformation model makes pattern transformation more flexible and pattern learning more efficient. Estimation accuracy is also increased by entering values of predicted charges in production line conditions such as loads or stock obtained from resource requirements planning, process design, capacity requirements planning, etc.

Order entry apparatus for automatic estimation and its method

A manufacturing planning system has lead time estimating function, MRP executing function, work demand calculating function, problem analyzing function, capacity adjusting function, product completion data adjusting function, and alternative shop designating function for planning a production schedule by calculating successively lead time in consideration of amount of work demanded and capacity for production, analyzing problems in the production schedule and performing relevant adjustments for solving the problems. An on-line display function is provided for simultaneous display of the problems and load/capacity states of production shops in association with solution of the problems and various adjustment together with the results thereof.

Manufacturing planning system

Disclosed is a teaching apparatus for a robot comprising a graphic display capable of displaying characters, symbols, and figures, a pointing device capable of indicating any point on the display screen, a storage for storing character, symbol, and graphic information, and an arithmetic and logic unit for taking in three dimensional data and data of hand coordinates system stored in the storage, calculating a conversion matrix t.sub.v for conversion to data of hand coordinates system and a conversion matrix T.sub.p for projection to the hand coordinates system, converting three dimensional data to two dimensional data according to the thus calculated conversion matrices T.sub.v and T.sub.p, and allowing a display of surroundings viewed from a view point of the robot in motion or at rest to be made on the graphic display.

Teaching apparatus for robot

Growing community of inventors

Ebina, Japan

Hideaki Matoba