专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPS59145092A Ph adjusting system 失效
标题翻译： PH调节系统
公开(公告)号：JPS59145092A
公开(公告)日：1984-08-20
申请号：JP1877083
申请日：1983-02-09
申请人： Hitachi Eng Co Ltd , Hitachi Ltd
发明人： KUNIMASA TOSHIHIKO
IPC分类号： G05B13/00 , C02F1/66 , C02F1/68 , G05B11/32 , G05B13/02
摘要： PURPOSE: To inhibit the formation of a time lag between the calculated value of a pH and the injection ratio of acid/alkali, by reflecting a result obtd. by occasionally calculating the delayed time of downflow caused by a flow speed on the calculation of the injection ratio of acid/alkali.
CONSTITUTION: The measured value of a pH at the injection point (the point D) of acid/alkali is temporarily recorded in a memory 13. A correcting circuit 16 for acid/alkali calculates the injection ratio of acid/alkali from the consumption amount of a pH recorded in a memory 19, the objective value of a pH at a point G preset in an interaction device 26 and the pH value at the point D recorded in the memory 13 according to a specified formula. Another correcting circuit 18 for acid/alkali calcultes the injection ratio of acid/alkali from the calculated pH value at the point G and the objective value of a pH to be preset in the interaction device 26 according to a specified formula. In addition, a calculating unit 17 for the amount of a pH consumed by chlorine calculates the corrected value of acid/alkali from the injection ratio of acid/chlorine at a point E recorded in a memory 14.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过反映结果，抑制pH计算值与酸/碱的注射比之间的时间滞后。通过计算酸/碱的喷射比的计算，计算流速引起的下降延迟时间。构成：将酸/碱的注入点（D点）的pH的测定值暂时记录在存储器13中。酸碱的校正电路16根据酸碱的消耗量计算酸碱的注入量在存储器19中记录的pH，在相互作用装置26中预设的点G处的pH的目标值和根据指定公式记录在存储器13中的点D处的pH值。酸/碱的另一校正电路18根据指定的公式从计算出的G点的pH值和根据指定的公式在相互作用装置26中预设的pH的目标值来计算酸/碱的注入比例。此外，氯消耗量的计算单元17根据记录在存储器14中的点E处的酸/氯的喷射比计算酸碱的校正值。

2. 发明专利

JPH0233699A TREND DISPLAYING METHOD FOR PROCESS MONITORING CONTROL 失效
公开(公告)号：JPH0233699A
公开(公告)日：1990-02-02
申请号：JP18362688
申请日：1988-07-25
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KUNIMASA TOSHIHIKO , SAITO KATSUMI
IPC分类号： G01D7/00 , G05B23/02 , G08B23/00 , G09G5/36
摘要： PURPOSE:To intuitively recognize the future rate of change by calculating a rate of change with a previous input value concerning the instantaneous value of a process, making a process quantity and the rate of change into two-dimensional data, determining the line segment of a trend from the coordinate value and displaying the instantaneous value and a change width in two-dimension. CONSTITUTION:A trend display device 15 fetches a distributing reservoir water level measured by a water level gage 3 provided at a distributing reservoir water level 1 into an input device 5. Next, the instantaneous value of the water level WL is stored through a converter 6 to a time series file 7. Thus, a change arithmetic unit 8 indexes latest two data from the file 7, calculates a water level change width and stores it into an instantaneous table 9. Next, a coordinate converter 10 indexes a table 9, converts it to the coordinate value on a display device 16 and stores it into a coordinate table 11. A vector arithmetic device 12 determines the direction of the present line of a trend based on the table 11, stores it into a displaying table 13, displayed by two-dimension at the device 6 and the change can be intuitively recognized.

3. 发明专利

JPH0556538B2 失效
公开(公告)号：JPH0556538B2
公开(公告)日：1993-08-19
申请号：JP23716687
申请日：1987-09-24
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NOBUTOMO YOSHIHIRO , SUZUKI MASAYOSHI , TSUTSUI KAZUO , MORI HIDEAKI , KUNIMASA TOSHIHIKO
IPC分类号： G06F9/44 , G06N5/04

4. 发明专利

JPS6481036A INPUT METHOD FOR KNOWLEDGE PARAMETER 失效
公开(公告)号：JPS6481036A
公开(公告)日：1989-03-27
申请号：JP23716687
申请日：1987-09-24
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NOBUTOMO YOSHIHIRO , SUZUKI MASAYOSHI , TSUTSUI KAZUO , MORI HIDEAKI , KUNIMASA TOSHIHIKO
IPC分类号： G06F9/44 , G06N5/04
摘要： PURPOSE:To previously check the improvement of the knowledge parameter value by displaying all rules that refer to the parameter when this parameter is changed. CONSTITUTION:An input/change procedure for knowledge parameter selects and instructs a frame name out of the function like the knowledge debug, etc., and displays the corresponding information on the frame name, the slot and the graph. Then a knowledge parameter is selected in a slot display column and the relevant rule referring the parameter is displayed. When many rules are available, all these rules can be confirmed with operations of the preceding and next pages. The parameter value is set when a point is picked up by a mouse on the graph.

5. 发明专利

JPS5882317A TOTAL OPERATION CONTROLLING METHOD FOR PLURAL DISTRIBUTING WATER PUMP FACILITIES 失效
公开(公告)号：JPS5882317A
公开(公告)日：1983-05-17
申请号：JP17980081
申请日：1981-11-11
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： YASOJIMA AKIMICHI , KUNIMASA TOSHIHIKO , NISHINOMIYA MASAHIRO
IPC分类号： F04B49/06 , F04B49/02 , F04D15/00 , G05B11/18 , G05D16/00
摘要： PURPOSE:To perform invariably stable control over estimated terminal pressure by increasing permitted deviation in discharge pressure between distributing water pumps in proportion to the total flow rate of distributed water. CONSTITUTION:According to the discharge pressure calculated by using Hazenwilliams formula, respective distributing water pumps of a plant 1 are put in operation under the control of a dedicated controller 5, and a computer 4 for process control controls the discharge pressure of each pump so that said pressure is within permitted deviation in discharge pressure between respective pumps set to increase in proportion to the total flow rate of distributed water of respective pumps. If the discharge pressure of some pump exceeds the permitted deviation in discharge pressure, the discharge pressure of the pump is corrected into the premitted deviation range before unbalance in pressure due to pressure interference among the pumps occurs, and the proper number of pumps in operation is set.

6. 发明专利

JPH01113814A CORRECTING METHOD FOR MEASUREMENT OF LEVEL CHANGING RATE 失效
公开(公告)号：JPH01113814A
公开(公告)日：1989-05-02
申请号：JP27020587
申请日：1987-10-28
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NOBUTOMO YOSHIHIRO , SUZUKI MASAYOSHI , TSUTSUI KAZUO , MORI HIDEAKI , KUNIMASA TOSHIHIKO
IPC分类号： G05D9/12
摘要： PURPOSE:To obtain the level changing rate data to the pump operation control by checking the fall/rise phenomena of a pump well level caused when the pump is started and stopped based on the change of the pump discharge amount to eliminate the level changes during said check and applying a smoothed arithmetic operation to obtain the level changing rate. CONSTITUTION:A transient period is checked for the pump discharge amount Q0 when the level of a pump well changes to the fall from the rise and vice versa. The level data on the transient period is deleted out of the level data for pump control. Then the changing rate of the level H is obtained is obtained at a sufficient time interval larger than the sampling cycle of the data input. Thus a smoothed continuous level changing rate is calculated and therefore the suited data is obtained to the pump control.

7. 发明专利

JPH01113813A CONTROLLER FOR WATER BLOCKING DOOR AT RAINWATER DRAIN PUMP CENTER 失效
公开(公告)号：JPH01113813A
公开(公告)日：1989-05-02
申请号：JP27020487
申请日：1987-10-28
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KUNIMASA TOSHIHIKO , SUZUKI MASAYOSHI , TSUTSUI KAZUO , NOBUTOMO YOSHIHIRO , MORI HIDEAKI
IPC分类号： E02B13/02 , G05D9/12
摘要： PURPOSE:To increase the discharge amount of a rainwater drain pump up to its maximum level by keeping a rainwater pump well at a fixed high level. CONSTITUTION:A target level H1 is set to the level H2 of a rainwater pump well. Then the opening amount of a water blocking door 16 is controlled at the time point when the level H1 is attained based on the deviation between the level H1 and the actually measured level. The fixed level control is started via the door 16 when the level H2 is equal to the level H1 so that a rainwater pump 15 can be operated at a low pumping degree. Thus it is possible to prevent the flood to a rainwater pump center as well as to the draining area of a rainwater draining system. Then the pump draining capacity is improved up to its maximum level when the pump is operated.

8. 发明专利

JPH01113810A CONTROL METHOD FOR OPERATION OF RAINWATER PUMP 失效
公开(公告)号：JPH01113810A
公开(公告)日：1989-05-02
申请号：JP27020387
申请日：1987-10-28
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： KUNIMASA TOSHIHIKO , SUZUKI MASAYOSHI , TSUTSUI KAZUO , NOBUTOMO YOSHIHIRO , MORI HIDEAKI
IPC分类号： G05D9/12
摘要： PURPOSE:To realize a highly stable operation system of a rainwater pump to keep the level of a rainwater pump well at a level under the prescribed value by switching the operation of the pump at an increase/decrease inflection point of the inflow or at a turning point between the rise and the fall. CONSTITUTION:A sudden rise of the level of a rainwater pump pond can be suppressed by securing the combination between the control for estimation of the inflow of an inflow estimating device 15 and the level correction control of a level correcting device 16 at a sudden rise of the inflow of rainwater at the start of rainfall. At the same time, the correction control of the device 16 is applied at a slow fall of the inflow of rainwater. Thus an overstop state of a rainwater pump 3 never occurs. Furthermore it is possible to decrease the problems related to the overoperation and overstop states of the pump 3 because it is decided based on the change of the level H of a rainwater pump well whether the present pump operation is continued or not.

9. 发明专利

JPH01113812A CONTROL METHOD FOR PUMP OPERATION AT DRAINING CENTER 失效
公开(公告)号：JPH01113812A
公开(公告)日：1989-05-02
申请号：JP27020787
申请日：1987-10-28
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： MORI HIDEAKI , SUZUKI MASAYOSHI , TSUTSUI KAZUO , NOBUTOMO YOSHIHIRO , KUNIMASA TOSHIHIKO
IPC分类号： G05D9/12
摘要： PURPOSE:To ensure the high response to an estimated sudden change of the water inflow by giving the level deviation proportional control to all working pumps for discharge of water equal to the inflow so that the inflow and the discharge amount of pumps are well balanced with each other. CONSTITUTION:The pumps are previously started after estimation of the inflow and the discharge amounts of pumps are controlled. As a result, the holding operations are possible with pumps with sufficient discharging capacity. Here three pumps are previously started. For this purpose, the opening amount of a discharge valve is changed to a1 from a0 so that those pumps can be operated between points D and C. Thus the discharge amount Q1 is obtained at the point C. Thus it is possible to cope with the change of inflow caused between the discharge amounts Q0 and Q1 by controlling the discharge valve. In such a way, the stable pump operation is ensured.

10. 发明专利

JPH01113811A OPERATION GUIDANCE DEVICE USING RAINFALL/INFLOW PATTERN 失效
公开(公告)号：JPH01113811A
公开(公告)日：1989-05-02
申请号：JP27020687
申请日：1987-10-28
申请人： HITACHI LTD , HITACHI ENG CO LTD
发明人： NOBUTOMO YOSHIHIRO , SUZUKI MASAYOSHI , TSUTSUI KAZUO , MORI HIDEAKI , KUNIMASA TOSHIHIKO
IPC分类号： G05D9/12
摘要： PURPOSE:To enable an operator to easily update a knowledge base by updating the past result data pattern with no update of the relevant rule. CONSTITUTION:A pattern rule 16 selects a past result pattern closest to the present process state out of those prepared patterns based on the hitherto process value. A pattern correction rule 17 and a working pump number correction rule 19 give corrections to the selected pattern based on the deviation from the process value. It is possible to ensure the same effect as a case where those rules are updated although they are fixed because the operating method is updated for a knowledge base through update of the phenomenon/result patterns. Then both a past result pattern and a present estimated pattern are displayed. As a result, the rules are visually known and a suitable operation guidance is displayed.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式