SG10201709795UA - Wireless system, and elevator control system and substation monitoring system including same - Google Patents

Wireless system, and elevator control system and substation monitoring system including same

Info

Publication number
SG10201709795UA
SG10201709795UA SG10201709795UA SG10201709795UA SG10201709795UA SG 10201709795U A SG10201709795U A SG 10201709795UA SG 10201709795U A SG10201709795U A SG 10201709795UA SG 10201709795U A SG10201709795U A SG 10201709795UA SG 10201709795U A SG10201709795U A SG 10201709795UA
Authority
SG
Singapore
Prior art keywords
wireless
elevator control
information signal
signal
substation monitoring
Prior art date
Application number
SG10201709795UA
Inventor
Takei Ken
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of SG10201709795UA publication Critical patent/SG10201709795UA/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3415—Control system configuration and the data transmission or communication within the control system
    • B66B1/3446—Data transmission or communication within the control system
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/497—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Radio Transmission System (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

WIRELESS SYSTEM, AND ELEVATOR CONTROL SYSTEM AND SUBSTATION MONITORING SYSTEM INCLUDING SAME 㻡㻌 A wireless system is provided that is capable of selectively using, and communicating through, wireless propagation paths formed between radio devices in an over-the-horizen communication environment, to contribute to maintaining and improving communication quality. Also an elevator control system and a substation monitoring system both having this wireless system are provided. The wireless 㻝㻜㻌 system includes a transmitter having: two spatially orthogonal antennas 21, 22; and a transmission circuit that transmits a signal having an information signal spread with one code and then superimposed on a circularly polarized wave, in which a polarized wave rotates with time, along with a signal having the same information signal as the information signal spread with two different codes and then 㻝㻡㻌 superimposed on statically polarized waves which are orthogonal to each other, and a receiver 201 having: at least one antenna; and a reception circuit that takes a difference between the sum of two operation results obtained by dispreading with two different codes a received signal transmitted through statically polarized waves, and an operation result obtained by despreading with one code a received signal 㻞㻜㻌 transmitted through a circularly polarized wave, wherein the transmitter and the receiver communicate with each other to transmit and receive the information signal.
SG10201709795UA 2016-11-28 2017-11-27 Wireless system, and elevator control system and substation monitoring system including same SG10201709795UA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2016229672A JP2018088567A (en) 2016-11-28 2016-11-28 Wireless system, and elevator control system using the same, transformation installation monitoring system

Publications (1)

Publication Number Publication Date
SG10201709795UA true SG10201709795UA (en) 2018-06-28

Family

ID=62191193

Family Applications (1)

Application Number Title Priority Date Filing Date
SG10201709795UA SG10201709795UA (en) 2016-11-28 2017-11-27 Wireless system, and elevator control system and substation monitoring system including same

Country Status (4)

Country Link
US (1) US10158395B2 (en)
JP (1) JP2018088567A (en)
CN (1) CN108123731B (en)
SG (1) SG10201709795UA (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7152255B2 (en) * 2018-10-25 2022-10-12 株式会社日立製作所 Wireless communication system and wireless communication method
CN112134360B (en) * 2020-09-24 2022-07-12 日立楼宇技术（广州）有限公司 Control method, device and equipment of elevator power supply circuit and storage medium

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5966102A (en) * 1995-12-14 1999-10-12 Ems Technologies, Inc. Dual polarized array antenna with central polarization control
JP4317372B2 (en) * 2002-02-27 2009-08-19 パナソニック株式会社 Polarization measuring apparatus, antenna characteristic measuring apparatus and radio wave measuring apparatus using the same
US7310379B2 (en) * 2002-12-30 2007-12-18 Motorola, Inc. Polarization state techniques for wireless communications
JP4160546B2 (en) 2004-09-24 2008-10-01 株式会社東芝 Wireless communication receiver
DE102005061219A1 (en) * 2005-12-20 2007-06-21 Fachhochschule Aachen Radio transmission line arrangement, has multipliers, mixers, phase comparators, frequency comparators or power detectors that are provided for evaluating two different polarized modes
JP4607802B2 (en) * 2006-03-16 2011-01-05 富士通株式会社 RFID reader / writer
US7957425B2 (en) * 2009-07-07 2011-06-07 Nigel Iain Stuart Macrae Communicating distinct data using polarized data signals
US8537657B2 (en) * 2009-07-24 2013-09-17 Raytheon Company Cross domain modulation scheme for a wireless communication link
CN102484495B (en) * 2009-08-13 2015-05-20 索尼公司 Electronic Device, Signal Transmission Device, And Signal Transmission Method
JP5632530B2 (en) * 2011-03-09 2014-11-26 株式会社日立製作所 Polarization angle division diversity radio transmitter, radio receiver, and radio communication system
US9219506B2 (en) * 2011-06-01 2015-12-22 Hitachi, Ltd. Wireless transmitter, wireless receiver, wireless communication system, elevator control system, and transformer equipment control system
US9686070B2 (en) * 2012-02-17 2017-06-20 California Institute Of Technology Dynamic polarization modulation and control
JP2016001816A (en) * 2014-06-12 2016-01-07 株式会社日立製作所 Wireless communication system, elevator system using the same, and electric substation monitoring system
WO2016111126A1 (en) * 2015-01-05 2016-07-14 日本電気株式会社 Mimo demodulation apparatus and method, and line-of-sight mimo wireless communication system
JP6475042B2 (en) * 2015-03-05 2019-02-27 株式会社日立製作所 Wireless transmitter, wireless receiver, and wireless communication system

Also Published As

Publication number Publication date
CN108123731B (en) 2020-06-30
CN108123731A (en) 2018-06-05
US10158395B2 (en) 2018-12-18
US20180152221A1 (en) 2018-05-31
JP2018088567A (en) 2018-06-07

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