公开(公告)号：JP2000341191A

公开(公告)日：2000-12-08

申请号：JP14906199

申请日：1999-05-28

Applicant: NAT SPACE DEV AGENCY

Inventor： YAMAWAKI KOJI ,  KUSANAGI MICHIRO ,  OBA HIDEO ,  NISHIYAMA KENJI

IPC: B64G1/10 ,  H04B7/185

Abstract: PROBLEM TO BE SOLVED: To enable continuous communication in three specific areas on the earth and to enable continuous position measurement by always establishing a communication link for one satellite in three areas nearly directly below a remote point formed on the earth surface and enabling a communication between satellites above the areas. SOLUTION: A ground fixed station 203 sends and receives a control signal radio wave for communication line control to and from a satellite 201 above an area A. On satellites 201 and 202, repeaters which repeat and send radio waves from mobile stations to mobile stations and fixed stations are mounted. A satellite communication is made between the satellites 201 and 202, and a satellite above a 3rd area. Each satellite stays for about 6 hours within a range reaching a high latitude through an ascending node. Thus, three associative recursion type satellite groups have an ascending node latitude and an ascending node passing time of the heat satellites adjusted properly to constitute a hemisphere-limited type position measurement communication composite system which is capable of three-satellite position measurement.

公开(公告)号：JPH07121231A

公开(公告)日：1995-05-12

申请号：JP26743993

申请日：1993-10-26

Applicant: NAT SPACE DEV AGENCY ,  HITACHI LTD ,  HITACHI KEIYO ENG

Inventor： YAMASHITA AKIHIRO ,  TANIGUCHI HIDENORI ,  SHIRAKI MITSUHIKO ,  TEJIMA DAISUKE ,  MIZUTA HIROSHI ,  OBA HIDEO

IPC: G05B23/02

Abstract: PURPOSE:To provide the monitoring method and monitoring system which enables a supervisor who monitors the operation of an object system to speedily recognize the operation state of the object system. CONSTITUTION:When the object system becomes abnormal, an abnormality screen area 300 is provided on the foremost plane of a monitor screen by a monitoring control unit 11 which controls the whole operation monitoring of the object system, an inference device 12 which infers the cause of the abnormality and a countermeasure when the object system 10 becomes abnormal, a screen control unit 14 which controls the screen display on a CRT 15, the CRT 15 which displays the monitor screen, and a recording device 17 which stores operation information on the object system, the cause of the abnormality and the countermeasure, screen data displayed on the CRT 15, a design drawing of the object system, etc.; and the design drawing of the object system is displayed, the abnormal place is changed in color or blinked, and the cause of the abnormality and the countermeasure are displayed.

公开(公告)号：JP2000264299A

公开(公告)日：2000-09-26

申请号：JP6582899

申请日：1999-03-12

Applicant: NAT SPACE DEV AGENCY

Inventor： YAMAWAKI KOJI ,  KUSANAGI MICHIRO ,  OBA HIDEO ,  MORI MASAHIRO

IPC: B64G1/64 ,  B64G1/22 ,  G05D1/08

Abstract: PROBLEM TO BE SOLVED: To provide a module coupling type space structure on a large scale such as a solar beam power-generating system capable of simplifying the construction and maintenance the weight reduced and allowing establishment of the attitude control. SOLUTION: A structural module 1 is formed from a cruciform mast unit 2 having four masts 2-1, 2-2, 2-3, 2-4 accommodatable and a mast driving and supporting part 3 to support the masts upon spreading them cruciformly and a membrane material 4 such as a membrane-form solar cell installed in a rhombic envelope space formed by tying together the tips of the spread mast unit cruciform, and the tips of the mast units of a plurality of rhombic structural modules are coupled separably and put in combination through mast coupling units 5 so that this module coupling type space structure is accomplished consisting of a large structure in a flat plate shape or hollow three-dimensional shape.

公开(公告)号：JPH04233714A

公开(公告)日：1992-08-21

申请号：JP40905990

申请日：1990-12-28

Applicant: MATSUSHITA ELECTRIC IND CO LTD ,  NAT SPACE DEV AGENCY

Inventor： MORI KEIJI ,  YANAI KAZUTOSHI ,  KAWAKITA SHIGEO ,  USHIO NORIKI ,  YOSHIHARA NORIYUKI ,  SHIODA SHIGEO ,  OBA HIDEO ,  NAKAO MASAHIRO

IPC: H01G9/12

Abstract: PURPOSE:To prevent both jetting of gas to outside and flowing out of a driving electrolyte to outside, and to obtain a long-life aluminum electrolytic capacitor generating no fire and the like by a short circuit even when an abnormal load is applied. CONSTITUTION:The capacitor element 11, in an aluminum electrolytic capacitor main body 22, is fixed to a metal case 12, an anode lead 14 led out from the capacitor element 11 is penetrated in a hole-sealing material 17, and it is fixed to the hole-sealing material 17. A weak point part 20 is provided on the anode lead 14 at a position between the capacitor element 11 and the hole-sealing part 17, a hermetic sealing material 25 is provided on the lead-out part to outside of the anode lead 14 in a sheathing case 23, and a double-case structure is obtained.