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    • 1. 发明专利
    • PREDICTION OF FLOW RATE OF RIVER WATER
    • JPS57184919A
    • 1982-11-13
    • JP6836281
    • 1981-05-08
    • TOHOKU ELECTRIC POWER COHITACHI LTD
    • HATAKEYAMA TAKASHIWAKAMORI FUMIOMIYAOKA SHINICHIROUFUNABASHI SEIJIYUOONARI MIKIHIKO
    • G01F1/00G01W1/14G05D7/06
    • PURPOSE:To raise the prediction accuracy of the flow rate of river water by a method in which the relation between the amount of rain water and the flow rate of river water is approximately calculated by a non-linear relation formula, model parameters are determined by a square average error minimization method, and error due to the difference between amounts of rain water at points and total amount of rain water is absorbed in the variable of internal condition. CONSTITUTION:Actually measured rain water amount ri(t)(i=1-n) at the time t is sent through a transmission line 3i to a river water flow rate predictor 4 every a fixed time interval from rain water amount observatories 21-2n set at pural points in a water collection area. A predicted value of river water flow rate is output from the actually measured values Q(t) and ri(t) of river water flow rate sent from a river water flow rate measurer 5. In this case, the Q(t) is approximated to the secondary item of Volterra series, and its integral nucleus is developed by Lagnerre polynomial. The parameters of developing coefficient, developing item, time constant, etc., are determined by a square average error minimization method for actually measured value and calculated value, and the error resulting from the difference between the amount of rain water at points and the total amount of rain water is absorbed in the variable of internal conditions. Thus, the accuracy of the prediction of the flow rate of river water can be enhanced.
    • 7. 发明专利
    • DEVICE FOR OPTIMIZING NETWORK
    • JPS6015768A
    • 1985-01-26
    • JP12324883
    • 1983-07-08
    • HITACHI LTD
    • MURAMATSU AKIRAMIYAOKA SHINICHIROUFUNABASHI SEIJIYUIHARA KOUICHI
    • G06F15/16G06F15/80G06F17/50
    • PURPOSE:To search the shortest route of a large-scale network and also to obtain the minimum cost flow at a high speed and parallel processing in a computer simulation which simulates a network falling motion for a primary/dual method of network. CONSTITUTION:This device consists of a central processor 1 which controls the overall working, an array 2 which performs parallel operations, a shift memory 3 which supplies or receives data to and from the array 2 simultaneously, and a memory 4 which supplies simultaneously the constant data to the array 2. The array 2 has a structure where basic operators called cells are connected one- dimensionally to each other. Here cells A and B are available. Then a capable flow rate is supplied to each arc Xi and node Ni to obtain a minimum cost flow flowing through the shortest route as soon as a simulation is through. At the same time, the position of each node Ni and the capable flow rate flowing these nodes are obtained by a simple calculation in a full process from start and stop time points of simulation. Based on these factors, the final state, i.e., the shortest route and a minimum cost flow are obtained by a pipeline arithmetic. In such a way, both the shotest route and a minimum cost flow can be obtained for a large-scale network.
    • 9. 发明专利
    • Presuming system of piping network breaking point
    • 管网断网点预处理系统
    • JPS59164500A
    • 1984-09-17
    • JP3739683
    • 1983-03-09
    • Hitachi Ltd
    • WAKAMORI FUMIOOOHATA HIDEOMIYAOKA SHINICHIROUFUNABASHI SEIJIYU
    • E03B7/00F17D5/02F17D5/06G01M3/00G01M3/28
    • F17D5/06G01M3/2807
    • PURPOSE:To presume the breaking point within the range corresponding to obtained measurement information, by sequentially applying a series of rules necessary for positional presumption and limiting the range of presumption gradually while compensating insufficient flow, pressure measurement. CONSTITUTION:Piping network system 1 is constituted with water distribution reservoir 11, valve 12, pump 13, water distribution network 14 and customer 15, and upon occurrence of breaking fault a fault monitoring system 4 will detect breaking fault and presume the position to perform countermeasure. Normal referential pressures at each node in piping network are compared with measured pressures, and if the difference exceeds over allowable range it is decided that breaking fault has detected to apply breaking point presumption rule onto data obtained in memory to determine presumption range and perform recovery processing.
    • 目的:假设在获得的测量信息对应范围内的断点,通过依次应用一系列的位置推定规则,并在补偿不足的流量,压力测量的同时,逐步限制推定范围。 构成:管网系统1由配水箱11,阀12,泵13,配水网14和客户15构成,故障监测系统4发生断路故障时,将检测断路故障并设定位置执行对策 。 将管网中每个节点的正常参考压力与测量压力进行比较,如果差超过允许范围,则确定检测到断裂故障将破坏点推定规则应用于在存储器中获得的数据,以确定推定范围并执行恢复处理 。
    • 10. 发明专利
    • Airflow quantity control device for air duct
    • 用于空气导管的气流数量控制装置
    • JPS59161623A
    • 1984-09-12
    • JP3425084
    • 1984-02-27
    • Hitachi LtdHitachi Plant Eng & Constr Co Ltd
    • MIYAOKA SHINICHIROUYOSHIHARA IKUOKUWATA MASANOBUWATANABE HIDEMI
    • F24F1/00F24F3/044F24F11/04
    • PURPOSE: To enable the uniform cooling of an air duct system to be performed even in case that an operating fan is exchanged by a method wherein a plurality of dampers are arranged on an air feeding ring duct in the air conditioning duct system for use in cooling an equipment for storing nuclear reactor and then these dampers are controlled.
      CONSTITUTION: A total volume of air at a plurality of blowing outlets between the two fans is taken to control the dampers 15W20 in such a way that three air blowing values between the fans 9 and 10, fans 10 and 11, and fans 11 and 9, respectively. In this way, a complete uniform air volume at each of all the blowing-out ports may not be performed. However, an object of performing a uniform cooling can be attained sufficiently under a rough control operation described above.
      COPYRIGHT: (C)1984,JPO&Japio
    • 目的:即使在通过其中多个阻尼器布置在用于冷却的空调管道系统中的空气供给环管道上的方法的情况下,即使在操作风扇更换的情况下,也能够均匀地冷却要进行的风道系统 用于存储核反应堆的设备,然后控制这些阻尼器。 构成:采用两个风扇之间的多个吹出口处的总体积的空气来控制风门15-20,使得风扇9和10,风扇10和11以及风扇11之间的三个空气吹送值 和9。 以这种方式,可以不执行所有吹出口中的每一个处的完全均匀的风量。 然而,在上述粗略控制操作下,可以充分地获得进行均匀冷却的目的。