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1. 发明专利

JPH09184861A METHOD AND APPARATUS FOR DETECTING CHANGING AMOUNT 失效
公开(公告)号：JPH09184861A
公开(公告)日：1997-07-15
申请号：JP34306495
申请日：1995-12-28
申请人： HITACHI LTD , HITACHI ELECTRIC SYSTEMS , HITACHI NAKA ELECTRON KK
发明人： MIYAMOTO AKIRA , MORI SHUNJI , YAMAZAWA YUJI , ONO KOJI , ITO TAKANORI
IPC分类号： G01R19/12
摘要： PROBLEM TO BE SOLVED: To hold a changing amount for a sampling period which is obtained by sampling measuring values related to a measuring object. SOLUTION: Signals to be measured are sequentially sampled by a sample hold circuit 10 for every sampling cycle and sampling values are stored. The deviation of the stored sampling value from a signal to be measured and input afterwards is integrated at an integrator 14. Immediately before an integration value of the integrator 14 is reset, the integration value of the integrator 14 is stored in a sample hold circuit, 18, and held during a next sampling cycle. The integration value is divided by a dividing circuit 20. A changing amount of the measuring value in the sampling cycle is detected by the dividing circuit 20.

2. 发明专利

JPH09189568A METHOD AND APPARATUS FOR ESTIMATION OF CONVERGENT VALUE 失效
公开(公告)号：JPH09189568A
公开(公告)日：1997-07-22
申请号：JP238796
申请日：1996-01-10
申请人： HITACHI LTD , HITACHI ELECTRIC SYSTEMS , HITACHI NAKA ELECTRON KK
发明人： MIYAMOTO AKIRA , MORI SHUNJI , YAMAZAWA YUJI , ONO KOJI , ITO TAKANORI
IPC分类号： G01D1/00 , G01R19/00
摘要： PROBLEM TO BE SOLVED: To easily estimate a convergent value regarding a measured value. SOLUTION: A signal (e) to be measured is sampled at every sampling cycle by a sample-and-hold circuit 12, and a sampled value is stored in an analog memory during the sampling period so as to be input to an integrator 16 via a subtraction circuit 14. The deviation between the sampled value and the signal (e), to be measured, which is input after that is integrated by the integrator 16 during the sampling period, an integrated value is stored in an analog memory 46 only for the time corresponding to a next sampling cycle, a factor K is added up to the integrated value by a factor setter 20, and an added-up value is transferred to an adder 22. Then, the added-up value and the sampled value are added by the adder 22, an added value is transferred to a sample-and- hold circuit 24, and the added-up value as the convergent value of the signal to be measured is stored in an analog memory 50 only for the time corresponding to the next sampling period.

3. 发明专利

JPH11262116A SWITCHBOARD 失效
公开(公告)号：JPH11262116A
公开(公告)日：1999-09-24
申请号：JP5671798
申请日：1998-03-09
申请人： HITACHI ELECTRIC SYSTEMS
发明人： SATO NORIMASA , MORI SHUNJI , ONO MINORU
IPC分类号： H02B3/00 , H02B1/32
摘要： PROBLEM TO BE SOLVED: To provide a switchboard, capable of coping with miniaturization by reducing dimensions in three directions of a relay control part together. SOLUTION: A switchboard 1 consists of a driving circuit part 13 supplying power to a load, and a control circuit part 16 having a relay control part containing a plurality of relays for controlling the driving circuit part 13. The relay control part consists of a relay module 3 in which a plurality of relays 6a, 6b, 6c, 6d and a plurality of connectors 5a, 5b, 5c for repeating electric signals operating the relays are arranged along the direction of operation of relay contacts, and a module is constituted by using a printed wiring board 7. Thereby dimensions of the width, the height and the thickness of the module 3 are reduced, and miniaturization is realized.

4. 发明专利

JPH11205947A DUCT WITH WIRE PASSING-THROUGH HOLES FOR SWITCHBOARD AND SWITCHBOARD EMPLOYING THE SAME 失效
公开(公告)号：JPH11205947A
公开(公告)日：1999-07-30
申请号：JP107698
申请日：1998-01-06
申请人： HITACHI ELECTRIC SYSTEMS
发明人： SATO NORIMASA , MORI SHUNJI , KITAGAWA MIKIO
IPC分类号： H02B1/20 , H02G3/04
摘要： PROBLEM TO BE SOLVED: To provide a duct with wire passing-through holes for a switchboard which facilitates treatment of excessive lengths of wires connected to apparatuses in the switchboard. SOLUTION: A duct 10 with wire passing-through holes for a switchboard has partition plates 2 and 3 with wire passing-through holes 8 by which the inside of the duct is partitioned in a longitudinal direction and attachment holes 9 for fixing the duct. As the inside of the duct is partitioned into a central neatly arranged wire passage 5 and 1st and 2nd excessive wire passages 6 and 7 provided on the left and right sides of the central neatly arranged wire passage 5, the excessive lengths of branch wires branched into the left and the right sides can be treated without the interference of main wires in the central neatly arranged wire passage 5.

5. 发明专利

JPH11205923A DISTRIBUTION PANEL 失效
公开(公告)号：JPH11205923A
公开(公告)日：1999-07-30
申请号：JP107598
申请日：1998-01-06
申请人： HITACHI ELECTRIC SYSTEMS
发明人： SATO NORIMASA , MORI SHUNJI , KITAGAWA MIKIO
IPC分类号： H02B1/20 , H02B3/00 , H02G5/06
摘要： PROBLEM TO BE SOLVED: To provide a distribution panel which makes possible an easy modification of a control equipment afterward and an easy maintenance/inspection of a power supply bus. SOLUTION: A distribution panel 10 is provided with a terminal stand 51 having a plurality of terminals including a P-phase terminal 51p and an N-phase terminal 51n connected to power supplies of different phases outside the panel, a P-phase power supply bus 41 connected to the P-phase terminal 51p, an N- phase power supply bus 42 connected to an N-phase terminal 51n, and displays 21, 22 and relays 31, 32, 33 as control equipments, each having an equipment terminal connected to a corresponding power supply bus. A P-phase power supply bus bar 43 and an N-phase power supply bus bar 44, each having a plurality of bus terminals 97 which make possible a one-on-one connection between the equipment terminal and the power supply bus for each control equipment, are installed as extensions of the power supply buses 41, 42. Each equipment terminal is connected one-on-one to the corresponding bus terminal 97 through a connection wire 53, 54 in parallel with the power supply buses 41, 42.

6. 发明专利

JPH10177412A PLANT PROTECTING DEVICE AND PLANT CONTROLLER 失效
公开(公告)号：JPH10177412A
公开(公告)日：1998-06-30
申请号：JP26172797
申请日：1997-09-26
申请人： HITACHI ELECTRIC SYSTEMS
发明人： MORI SHUNJI , MIZOGUCHI TSUYOSHI , MOMOCHI YASUSHI , ONO MINORU
IPC分类号： G05B9/02 , G05B19/048 , G05B19/05 , G05B23/02
摘要： PROBLEM TO BE SOLVED: To easily specify a failure place which occurs in the respective configuration elements of a plant by providing a reporting device where a logical system diagram indicating the relation of an input signal with an output signal is clearly shown. SOLUTION: A signal from a sensor 31 incidental to a plant equipment 30 is inputted to the controller 33 of a control board 14 and a protecting device 41. The protecting device 41 inputs the abnormal sensor signal of the plant equipment 30, executes a prescribed logical operation and outputs a necessary command to an actuator 32. The input side reporting lamp 44 of a reporting panel 42 is turned on by the input side signal of the protecting device 41. The output side reporting lamp 45 of the reporting panel 42 is turned on by the command signal to the actuator 32. The protecting function logic of an input tranmsitted to the protecting device 41 with an output from the protecting device 41 is expressed by a logical system diagram 46 which executes a visual appeal by a pattern and the logical group diagram 46 is inserted between the reporting lamps 44 and 45 in the reporting panel 42.

7. 发明专利

JP2001331220A CONTROL INTENTION AUTOMATIC CONFIRMATION DISTRIBUTED CONTROL SYSTEM 失效
公开(公告)号：JP2001331220A
公开(公告)日：2001-11-30
申请号：JP2000153222
申请日：2000-05-24
申请人： HITACHI ELECTRIC SYSTEMS LTD
发明人： SATO NORIMASA , MORI SHUNJI , HONDA KUNIHIKO
IPC分类号： G05B9/02 , G05B23/02 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To prevent the erroneous output of an auxiliary controller in a distributed control system to terminal load equipment due to any noise or hardware/ software failure or the like. SOLUTION: At the time of performing a driving output to terminal load equipment 41, an auxiliary controller 31 returns a control command confirmation signal for confirming this to a main controller 10 in order to confirm this. At the time of receiving the control command confirmation signal, the main controller 10 collates the control command confirmation signal with the transmitted command signal, and when they are made coincident, transmits a control command confirmation finish signal.

8. 发明专利

JPH10262324A INTERLOCK DEVICE FOR PLANT, CONTROL DEVICE FOR PLANT AND PLANT CONTROL SYSTEM 失效
公开(公告)号：JPH10262324A
公开(公告)日：1998-09-29
申请号：JP6644097
申请日：1997-03-19
申请人： HITACHI ELECTRIC SYSTEMS
发明人： MORI SHUNJI , KANZAKI HIDEO , ONO MINORU
IPC分类号： H02H3/02
摘要： PROBLEM TO BE SOLVED: To provide an interlock device for a plant which increases the reliability of the plant. SOLUTION: An interlock device 42 for a plant has a detecting means which detects form a sensor signal circuit 36 non-establishment of control conditions of a controller 33 of a control panel 14, comprising the controller 33 for controlling plant equipment 30 through an actuator 32 on the basis of a sensor signal from a sensor 31 detecting the state of the plant equipment 30, and a protective device 41 detecting abnormality from the sensor signal and protecting the plant equipment 30 through the actuator 32, and a locking means which locks an actuator command signal circuit 38, so that a command signal of establishment of the control conditions may not be outputted from the controller 33 and transmitted to the actuator 32 falsely at the time when the control conditions are not established.

9. 发明专利

JP2000339383A ELECTRONIC SEAL IMPRESSION SYSTEM AND RECORDING MEDIUM RECORDING ELECTRONIC SEAL IMPRESSION PROCESSING PROGRAM 失效
公开(公告)号：JP2000339383A
公开(公告)日：2000-12-08
申请号：JP14832999
申请日：1999-05-27
申请人： HITACHI ELECTRIC SYSTEMS LTD
发明人： SATO NORIMASA , MORI SHUNJI , YAMAMOTO AKIRA , KOIWA YUTAKA
IPC分类号： G06F19/00 , G06Q10/10
摘要： PROBLEM TO BE SOLVED: To prevent alternation of electronic document data after sealing the electronic seal impression by setting seal data to a display state when electronic seal impression data are copied in the sealing area of an electronic document, setting confirmation and collation data to a non-display state and disabling a processing for editing data of the electronic document. SOLUTION: A CPU 10 starts an electronic seal program to realize an electronic seal function, generates electronic seal data in accordance with an input from an input part 30 by an electronic seal data generating function and executes a processing for registering it. Electronic seal data are generated by division into seal data and confirmation and collation data for confirming the truth of a sealed seal. When the electronic document is sealed, electronic seal data held in a memory part 50 are read and copied into a seal place, seal data are set to the display state and confirmation and collation data are set to the non-display state. When the truth of the seal is confirmed, confirmation and collation data copied in the non-display state are made to be in the display state to confirm the truth of the seal.

10. 发明专利

JP2000152428A POWER DISTRIBUTION PANEL AND TERMINAL BOARD THEREFOR 失效
公开(公告)号：JP2000152428A
公开(公告)日：2000-05-30
申请号：JP31325398
申请日：1998-11-04
申请人： HITACHI ELECTRIC SYSTEMS
发明人： SATO NORIMASA , MORI SHUNJI , MIZOGUCHI TSUTOMU , KITAGAWA MIKIO
IPC分类号： H02B1/20
摘要： PROBLEM TO BE SOLVED: To improve assembling characteristic and reliability by providing, at the bottom part of a supporting board, a fitting member to fit control devices of a power distribution panel and an engaging means to be engaged with the common fitting means. SOLUTION: A fitting rail 51 is a fitting member for fitting a terminal board 1 within a power distribution panel. The fitting rail 51 is provided with a fitting hole for fitting to a cabinet of the power distribution panel. The fitting rail 51 engaged with an engaging means 35 provided at the bottom part of a supporting board 31 holds the supporting base 31 and receives a force generated in the loading/unloading direction, when a connecting terminal is loaded and unloaded to control flexure deformation when the supporting board 31 is loaded to the terminal. In other words, when the fitting rail 51 is engaged with the engaging part 35 of the supporting board 31, it becomes a fitting member for fitting the terminal board 1 to the power distribution panel and also is used as a reinforcing member for reinforcement to the force in the loading/unloading direction. Accordingly, the terminal board is not easily deformed when it is loaded or unloaded to or from the connecting terminal, making easier the unloading work and assuring electrical connection through reliable connecting operation.

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