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    • 1. 发明专利
    • Operation support system
    • 操作支持系统
    • JP2012103883A
    • 2012-05-31
    • JP2010251500
    • 2010-11-10
    • Hitachi Ltd株式会社日立製作所
    • FUSHIMI ATSUSHIHARADA HIDEOARITA SETSUOKANEDA MASAKI
    • G05B23/02
    • PROBLEM TO BE SOLVED: To provide an operation support system which can provide guidance of operation/supervision of which an operator takes charge and also status of operation/supervision and its execution by the other operators concerning the own operation/supervision as operation support information, when a plurality of operators perform shared operation/supervision.SOLUTION: An operation support system performs operation/supervision of a plant by a plurality of operators. Each operator with a display device executes operation/supervision of plant components in an own responsible area. The display device displays status of operation/supervision of plant components in the own responsible area and also status of operation/supervision of plant components in the other operators' responsible area, according to operators' mutual execution order.
    • 要解决的问题:提供一个操作支持系统,可以为运营商负责的操作/监督指导,以及其他运营商对运行/监督的操作/监督及其执行情况的操作,作为操作 支持信息,当多个运营商执行共同的操作/监督。 解决方案:操作支持系统由多个操作者执行工厂的操作/监控。 具有显示装置的每个操作者在自己的责任区域中执行/监督工厂部件。 显示装置根据操作员的相互执行顺序,显示自己负责地区的工厂部件的运行/监督状况,以及其他经营者责任区域的工厂部件的运行/监督状态。 版权所有(C)2012,JPO&INPIT
    • 2. 发明专利
    • Wireless communication apparatus and wireless communication method
    • 无线通信设备和无线通信方法
    • JP2011181983A
    • 2011-09-15
    • JP2010041235
    • 2010-02-26
    • Hitachi Ltd株式会社日立製作所
    • ARITA SETSUOMURATA SHINJIICHINOSE YUJIMASUKO HIDEAKI
    • H04L1/00H04W28/04
    • H04W28/04H04L1/0061H04L1/0072H04L1/0079H04L1/008H04L1/08
    • PROBLEM TO BE SOLVED: To provide a wireless communication apparatus of highly real-time performance that does not generate any communication delay time, even if a communication error occurs at a MAC header in a communication frame. SOLUTION: MAC header information is used to determine whether a destination address of a received data frame is an address of wireless communication apparatus 1. MAC header information currently assigned to each of a plurality of MAC headers is used to select MAC header information without error. When all of MAC header information are erroneous, a majority determination processor 13 carries out majority determination for these MAC header information to generate correct MAC header information. A received data extractor 14 removes a header etc. in the received frame to extract received data and output it to an external device. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:即使在通信帧中的MAC报头发生通信错误,也提供不产生任何通信延迟时间的高度实时性能的无线通信装置。 解决方案:MAC头信息用于确定接收到的数据帧的目的地址是否是无线通信装置1的地址。当前分配给多个MAC报头中的每一个的MAC报头信息用于选择MAC报头信息 没有错误。 当所有MAC头信息都是错误的时,多数确定处理器13对这些MAC头信息执行多数确定以产生正确的MAC头信息。 接收到的数据提取器14去除接收到的帧中的报头等,以提取接收到的数据并将其输出到外部设备。 版权所有(C)2011,JPO&INPIT
    • 3. 发明专利
    • Radio communication method and radio communication apparatus
    • 无线电通信方法和无线电通信设备
    • JP2009100389A
    • 2009-05-07
    • JP2007271927
    • 2007-10-19
    • Hitachi Ltd株式会社日立製作所
    • ICHINOSE YUJIARITA SETSUOMURATA SHINJI
    • H04W72/04H04W16/02H04W74/04H04W84/12
    • Y02D70/00
    • PROBLEM TO BE SOLVED: To solve the problem that communication control becomes complicated when using random access together for suppressing delay that is the problem of a polling system, in an access system of radio communication.
      SOLUTION: A polling signal is transmitted from a master station in a fixed term, a period from transmission of a slave station of a polling destination to the next polling signal is defined as the access period of a CSMA (carrier sense multiple access) system; and each slave station transmits a packet or a polling request to the master station utilizing the period, thereby shortening a transmission waiting time. Since the polling term is fixed, and each slave station can estimate the length of the CSMA period even without special communication control information, transmission can be achieved easily and while being controlled.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了解决在无线通信的接入系统中一起使用随机接入一起抑制作为轮询系统的问题的延迟的通信控制变得复杂的问题。 解决方案:轮询信号以固定的期限从主站发送,从轮询目的地的从站的传输到下一个轮询信号的周期被定义为CSMA的接入周期(载波侦听多路访问 )系统; 并且每个从站利用该周期向主站发送分组或轮询请求,从而缩短了传输等待时间。 由于轮询项是固定的,并且即使没有特殊的通信控制信息,每个从站也可以估计CSMA周期的长度,可以容易地并且被控制地实现传输。 版权所有(C)2009,JPO&INPIT
    • 4. 发明专利
    • Power-line carrier system
    • 电力线载波系统
    • JP2009095058A
    • 2009-04-30
    • JP2009000871
    • 2009-01-06
    • Hitachi Ltd株式会社日立製作所
    • ICHINOSE YUJIARITA SETSUO
    • H04B3/54H04L12/28
    • PROBLEM TO BE SOLVED: To provide a power-line carrier system which materially increases the transmission speed of various information, in which a waiting time for transmission information is short, and which reduces the load of a control section to make efficient operation perform.
      SOLUTION: This power-line carrier system couples a master station 1 and a plurality of substations 2A-2N with power lines 3, and transmits various information between the master station 1 and the plurality of substations 2A-2N, wherein the master station 1 comprises a power cycle detecting circuit 12 which detects the cycle of the commercial frequency power supplied to the power lines 3, and generates a timing signal based on the detected cycle, a transmission timing control circuit 7 which transmits time series information including a preamble signal by the timing signal from the power cycle detecting circuit, and a means for detecting the preamble signal to receive uplink information using the timing signal from the power cycle detecting circuit 12.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种实质上提高传输信息的等待时间短的各种信息的传输速度的电力线载波系统,并且减少了控制部分的负载以进行有效的操作 表演。 解决方案:该电力线载波系统将主站1和多个变电站2A-2N与电力线3相连,并在主站1和多个变电站2A-2N之间发送各种信息,其中主站 站1包括检测提供给电力线3的商用频率功率的周期的电力周期检测电路12,并且基于检测到的周期产生定时信号;发送定时控制电路7,发送包括前导码的时间序列信息 通过来自电力周期检测电路的定时信号发送信号,以及用于使用来自电力周期检测电路12的定时信号来检测前导信号以接收上行链路信息的装置。(C)2009,JPO&INPIT
    • 5. 发明专利
    • Communication system in trains
    • 火车通讯系统
    • JP2009055749A
    • 2009-03-12
    • JP2007221990
    • 2007-08-29
    • Hitachi Ltd株式会社日立製作所
    • SAITO SUNAOARITA SETSUOITO SATORUAYABE KAZUNORI
    • B60L15/42B60L3/08
    • Y02T90/16
    • PROBLEM TO BE SOLVED: To realize a highly reliable in-train communication system which is high in realtime property and which has a bypass function against a failure or the like of a communication device.
      SOLUTION: The in-train communication system comprises: control data communication systems 100 connected to in-train equipment 400 including an operation table device 300 installed in the train comprised of a plurality of cars coupled to each other; and control data repeating devices 200 for transmitting and receiving control data transferred to adjacent cars. The control data communication devices 100 and the control data repeating devices 200 in cars are connected in bus topology by communication lines, and the control data repeating devices 200 between the adjacent cars are connected by the communication lines.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:实现高实时性的高度可靠的列车内通信系统,并且具有抵抗通信装置的故障等的旁路功能。 列车内通信系统包括:连接到列车设备400的控制数据通信系统100,包括安装在由相互耦合的多个轿厢组成的列车中的操作台设备300; 以及用于发送和接收传送到相邻车辆的控制数据的控制数据重复装置200。 汽车中的控制数据通信装置100和控制数据重复装置200通过通信线路连接在总线拓扑中,并且相邻车辆之间的控制数据重复装置200通过通信线路连接。 版权所有(C)2009,JPO&INPIT
    • 6. 发明专利
    • Radio communication apparatus, ground-to-vehicle radio communication system, and ground-to-mobile body radio communication system
    • 无线电通信设备,地面无线电无线电通信系统和接地到移动体无线电通信系统
    • JP2009005037A
    • 2009-01-08
    • JP2007163309
    • 2007-06-21
    • Hitachi Ltd株式会社日立製作所
    • ARITA SETSUONIIMA DAISUKESAITO SUNAO
    • H04W4/04
    • PROBLEM TO BE SOLVED: To provide a radio communication apparatus having a good responsibility for performing radio communication between a train and a vehicle.
      SOLUTION: The radio communication apparatus 30 consists of a base band processing circuit 32, two radio devices 33 and 34, and antennae 35 and 36. The base band processing circuit 32 has a function for performing processings (201, 202, 206 and 207) for error detection and correction, modulation and demodulation processings (204, 205, 209 and 210) for the OFDM method, and hopping pattern generation processings (211 and 212) for a frequency hopping method. The radio devices 33 and 34 perform a frequency hopping processing (249) by different hopping patterns in sync with each other. The radio devices 33 and 34 have functions (213 and 214) to select received data with no error detected upon receiving.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种对在列车和车辆之间执行无线电通信的良好责任的无线通信装置。 解决方案:无线电通信装置30包括基带处理电路32,两个无线电设备33和34以及天线35和36.基带处理电路32具有执行处理(201,202,206)的功能 和207),用于OFDM方法的差错检测和校正,调制和解调处理(204,205,209和210)以及用于跳频方法的跳频图案生成处理(211和212)。 无线电设备33和34通过不同的跳频图案彼此同步地进行跳频处理(249)。 无线电设备33和34具有在接收时没有检测到错误的功能(213和214)来选择接收的数据。 版权所有(C)2009,JPO&INPIT
    • 7. 发明专利
    • Controller of electromagnetic apparatus and controller of electromagnetic apparatus used in nuclear power plant
    • 电力设备控制器和核电厂使用的电磁装置控制器
    • JP2008008649A
    • 2008-01-17
    • JP2006176510
    • 2006-06-27
    • Hitachi Ltd株式会社日立製作所
    • YAMADA IZUMIFUSHIMI ATSUSHIARITA SETSUOSAKATA TOMOTAKA
    • G21C17/108G21C7/12G21C7/14G21C7/36G21C15/243G21D1/00
    • Y02E30/39
    • PROBLEM TO BE SOLVED: To provide a controller of an electromagnetic apparatus for suppressing noise that arises, and a controller of an electromagnetic apparatus used in a nuclear power plant.
      SOLUTION: In a control circuit 34a, when a switch is turned on, semiconductor switches 31u and 31v of U and V phases are turned on at a zero-crossing time of a line voltage detected by a line-voltage zero-crossing detection circuit 32uv. Thereafter, a semiconductor switch 31w of a W phase is turned on at a zero-crossing time of an interswitch voltage detected by an interswitch voltage detection circuit 32w. When the switch is turned off, the semiconductor switch 31u of the U phase is turned off at a zero-crossing time of a current zero-crossing detection circuit 33u while the semiconductor switches 31v and 31 of the V and W phases are turned off at a zero-crossing time of a current zero-crossing detection circuit 33v.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种用于抑制所产生的噪声的电磁装置的控制器和用于核电站的电磁装置的控制器。 解决方案:在控制电路34a中,当开关导通时,U和V相的半导体开关31u和31v在线电压过零检测的线电压的过零时间导通 检测电路32uv。 此后,在由开关间电压检测电路32w检测到的开关间电压的过零时间,W相的半导体开关31w导通。 当开关断开时,U相的半导体开关31u在电流过零检测电路33u的过零时间断开,同时V相和W相的半导体开关31v和31被截止, 电流过零检测电路33v的过零时间。 版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Method and apparatus for communication
    • 通信方法与装置
    • JP2008005389A
    • 2008-01-10
    • JP2006175030
    • 2006-06-26
    • Hitachi Ltd株式会社日立製作所
    • SAITO SUNAOARITA SETSUOICHINOSE YUJINIIMA DAISUKE
    • H04J11/00
    • PROBLEM TO BE SOLVED: To provide high reliability using a differential modulation system having easy modulation/demodulation processing in a communication system using multi-carrier modulation. SOLUTION: The apparatus generates a multi-carrier communication signal using a differential modulation means between carriers modulating phase difference between a plurality of carriers within one symbol based on transmission information, and connects a guard interval (back GI) 207 generated by copying a part of communication signal to the back of the one symbol of the multi-carrier communication signal. The apparatus can almost precisely superpose an FFT window 201 of a differential modulation section 12 between carriers on a data part 206. Therefore, it is able to not only reduce a probability that the FFT window 201 accidentally superposes on a differential modulation section between symbols 13a owing to noise of a transmission path, but also improve demodulation characteristics of the differential modulation section 12 between carriers and reduce bit error rate. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:使用在使用多载波调制的通信系统中具有容易的调制/解调处理的差分调制系统来提供高可靠性。 解决方案:该装置在载波之间使用差分调制装置,根据传输信息调制一个符号内的多个载波之间的相位差,并连接通过复制生成的保护间隔(后向GI)207 通信信号的一部分到多载波通信信号的一个符号的背面。 该装置几乎可以精确地叠加在数据部分206上的载波之间的差分调制部分12的FFT窗口201.因此,不仅可以减少FFT窗口201在符号13a之间的差分调制部分意外叠加的概率 由于传输路径的噪声,而且还提高了载波之间的差分调制部分12的解调特性,并降低了误码率。 版权所有(C)2008,JPO&INPIT
    • 9. 发明专利
    • Nuclear reactor system and nuclear reactor control method
    • 核反应堆系统和核反应堆控制方法
    • JP2007232504A
    • 2007-09-13
    • JP2006053068
    • 2006-02-28
    • Hitachi Ltd株式会社日立製作所
    • FUSHIMI ATSUSHIARITA SETSUOISHII YOSHIHIKOIKEGAWA TOMOHIKOHASEGAWA MAKOTOISHII KAZUHIKO
    • G21D3/00
    • Y02E30/40
    • PROBLEM TO BE SOLVED: To stably control a nuclear reactor in a short time so as not to enter an unstable region defined by a relationship between a temperature and a pressure in the nuclear reactor at startup.
      SOLUTION: The nuclear reactor system includes an output controller 41 generating a control rod operation signal 51 for vertically moving control rods inside a nuclear reactor pressure vessel 6 on the basis of reactor water temperature variation rate set for the nuclear reactor pressure vessel 6, a supply water controller 43 generating signals of the amount flow rate of supply water and a flow rate of a down flow passage for the nuclear reactor pressure vessel 6 on the basis of a nuclear reactor water level signal detected from a natural circulation system, and a process computer 45 integrally controlling the output controller 41 and the supply water controller 43. A reactor water temperature variation rate setting part 48 adjusting a set value 53 of the reactor water temperature variation rate on the basis of the amount of variation of the nuclear reactor water level signal is added to the supply water controller 43.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:在短时间内稳定地控制核反应堆,以便在启动时不进入由核反应堆的温度和压力之间的关系限定的不稳定区域。 解决方案:核反应堆系统包括输出控制器41,其基于为核反应堆压力容器6设定的反应器水温度变化率,生成控制棒操作信号51,用于在核反应堆压力容器6内垂直移动控制棒 基于从自然循环系统检测出的核反应堆水位信号,生成供应水量的信号和核反应堆压力容器6的下流通道的流量的供水控制器43,以及 整体控制输出控制器41和供水控制器43的过程计算机45.反应堆水温变化率设定部分48,根据核反应堆的变化量调整反应堆水温变化率的设定值53 水位信号被添加到供水控制器43中。版权所有:(C)2007,JPO&INPIT