Hitachi, Ltd.

Hiroshi Matsumaru

Kinji Mori

Yoshio Sakai

Hirokazu Ihara

Kenzi Yoneda

Shoji Miyamoto

Makoto Nohmi

Toshimitsu Tobita

Michio Fujiwara

Seiji Yasunobu

Yasushi Kobayashi

Katuaki Ikeda

Osamu Dohi

Akihiko Noguchi

A control system for an elevator has a plurality of elevator information generation devices each of which has an information output unit which outputs elevator information to an elevator controller and also to at least one display controller which generates one or more on elevator displays. There are a plurality of display controllers, these are preferably connected to the information output units by a common transmission path. There may be a plurality of elevator controllers, when there are a plurality of elevator cabs, and those elevator controllers may all be connected to the common transmission path. There is then a supervisor controller for controlling the elevator controllers.

Elevator control system

The present invention relates to a display guide apparatus of elevator facilitating alteration of display format and to its display method. A display guide apparatus according to the present invention comprises an elevator control unit, an information producing unit, and an information display control unit. The information display control unit is so configured that an auxiliary memory medium, which has stored therein information required for displaying the running information of the elevator, may be mounted thereon. At least information required for displaying the running information of the elevator is supplied from the auxiliary memory medium. Information required for displaying general information is supplied from the information producing unit. On the basis of information relating to the running situation of the elevator supplied from the elevator contorl unit, the running information of the elevator and the general information are displayed by display units disposed at least at halls to perform guidance.

Display guide apparatus of elevator and its display method

A message communication method and system in which a message signal to be communicated includes a function code signal portion and a data signal portion, the former being an index to the content of the latter and forming the substantial part of the message signal, and in which such a message signal is communicated not only among equipment blocks connected with one and the same communication line but also among those connected with different communication lines coupled with each other through a common equipment block connected with both of the coupled communication lines. Function codes being indices to the contents to data required to be processed by equipment blocks connected with the coupled communication lines are respectively registered in different memories in the common equipment block and the function code signal portions of message signals received by the common equipment block are compared with the stored function codes in the common equipment block and if concurrence takes place transferrence of the message signals between the coupled communication lines is effected.

Message communication method and system

A double loop transmission system is provided in which not only bypass routes but also terminals are connected with a pair of transmission control units of each loop. In this manner, the transfer of a message is controlled by both the information concerning whether the smaller loop formed by a pair of the adjacent transmission control units is abnormal or not and the bypass code data contained in the message. The transmission can thus be continued no matter which loop has its transmission control units disordered. And the transmission between the terminals can be performed by the construction and reconstruction of the bypass routes when a loop which has been disordered is restored.

Loop transmission system with improved bypass routing arrangement

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Katsuta, Japan

Hiroshi Matsumaru