Threshold value calculation system, and threshold value calculation method

    公开(公告)号:US10928004B2

    公开(公告)日:2021-02-23

    申请号:US15564230

    申请日:2016-02-19

    申请人: TLV Co., Ltd.

    IPC分类号: F16T1/48 G05B23/02 G05B23/00

    摘要: The present invention includes a threshold value calculation unit that calculates a normal range that is a range of values that are taken when a steam trap is in a normal state, by using a predetermined calculation reference, based at least on state values with normal determination results, from among state values that have been stored in the storage unit during a predetermined period. A determination unit can perform predictive determination to determine whether the steam trap is in a normal state or a state that indicates an inclination toward a bad state and is highly likely to change to a bad state, by determining whether or not the state values are in the normal range, and the threshold value calculation unit performs accuracy determination to determine the accuracy of the predictive determination based on the results of the predictive determination regarding the state values stored in the storage unit, and adjusts the calculation reference based on the result of accuracy determination.

    Risk assessment device, risk assessment system, risk assessment method, risk assessment program, and data structure

    公开(公告)号:US10942508B2

    公开(公告)日:2021-03-09

    申请号:US16614916

    申请日:2018-07-19

    申请人: TLV Co., Ltd.

    IPC分类号: G05B23/02 G06Q10/06

    摘要: A risk assessment device for performing risk assessment includes a diagnosis result storage unit that accumulatively stores diagnosis results of a plurality of diagnoses regarding each process device that is provided in a steam plant to be assessed, in association with installation sites of the process devices, a risk information calculation unit that calculates risk information regarding a likelihood of malfunction of a process device that is provided at a target installation site, based on diagnosis results regarding process devices that are provided at the target installation site, and a device group risk information calculation unit that calculates device group risk information regarding a likelihood of malfunction of a target device group, based on the risk information regarding installation sites of respective process devices that constitute the target device group.

    Steam Using Facility Management Method, and Steam Using Facility

    公开(公告)号:US20170227213A1

    公开(公告)日:2017-08-10

    申请号:US15501638

    申请日:2015-07-17

    申请人: TLV Co., Ltd.

    IPC分类号: F22B37/42 F22D5/00

    摘要: A steam using facility in which a generated condensate amount changes in association with a change in an environmental state value, based on a correlation between the environmental state value and the generated condensate amount. An environmental state value when the generated condensate amount becomes a set alarm amount is set as an alarm state value. An alarm is issued when an actual environmental state value by a measuring instrument changes in an increasing direction of the generated condensate amount to reach the set alarm state value.

    Maintenance support system and maintenance support method

    公开(公告)号:US11379801B2

    公开(公告)日:2022-07-05

    申请号:US15564249

    申请日:2016-02-15

    申请人: TLV Co., Ltd.

    IPC分类号: G06Q10/00 G06Q10/06 G06Q50/06

    摘要: A maintenance support system for a plurality of maintenance-target apparatus in a plant includes a maintenance information delivery unit that delivers maintenance information Im that indicates an operational status of each maintenance-target apparatus to maintenance personnel every preset time T, wherein the maintenance information delivery unit delivers predictive information If to the maintenance personnel at a specified time Tf between the previous delivery of the maintenance information Im and the next delivery of the maintenance information Im, the predictive information If providing predictions regarding the operational status of each maintenance-target apparatus at the next delivery of the maintenance information Im.

    Maintenance Support System and Maintenance Support Method

    公开(公告)号:US20180130029A1

    公开(公告)日:2018-05-10

    申请号:US15564249

    申请日:2016-02-15

    申请人: TLV Co., Ltd.

    IPC分类号: G06Q10/00 G06Q10/06 G06Q50/06

    摘要: A maintenance support system for a plurality of maintenance-target apparatus in a plant includes a maintenance information delivery unit that delivers maintenance information Im that indicates an operational status of each maintenance-target apparatus to maintenance personnel every preset time T, wherein the maintenance information delivery unit delivers predictive information If to the maintenance personnel at a specified time Tf between the previous delivery of the maintenance information Im and the next delivery of the maintenance information Im, the predictive information If providing predictions regarding the operational status of each maintenance-target apparatus at the next delivery of the maintenance information Im.

    Threshold Value Calculation System, and Threshold Value Calculation Method

    公开(公告)号:US20180128424A1

    公开(公告)日:2018-05-10

    申请号:US15564230

    申请日:2016-02-19

    申请人: TLV Co., Ltd.

    IPC分类号: F16T1/48

    CPC分类号: F16T1/48 G05B23/00 G05B23/02

    摘要: The present invention includes a threshold value calculation unit that calculates a normal range that is a range of values that are taken when a steam trap is in a normal state, by using a predetermined calculation reference, based at least on state values with normal determination results, from among state values that have been stored in the storage unit during a predetermined period. A determination unit can perform predictive determination to determine whether the steam trap is in a normal state or a state that indicates an inclination toward a bad state and is highly likely to change to a bad state, by determining whether or not the state values are in the normal range, and the threshold value calculation unit performs accuracy determination to determine the accuracy of the predictive determination based on the results of the predictive determination regarding the state values stored in the storage unit, and adjusts the calculation reference based on the result of accuracy determination.