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1. (CN107924184) MONITORING DEVICE, AND METHOD FOR CONTROLLING MONITORING DEVICE

Office : China
Application Number: 201680047961.5 Application Date: 06.12.2016
Publication Number: 107924184 Publication Date: 17.04.2018
Publication Kind : A
Prior PCT appl.: Application Number:PCTJP2016086203 ; Publication Number: Click to see the data
IPC:
G05B 23/02
G05B 19/418
G PHYSICS
05
CONTROLLING; REGULATING
B
CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
23
Testing or monitoring of control systems or parts thereof
02
Electric testing or monitoring
G PHYSICS
05
CONTROLLING; REGULATING
B
CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
19
Programme-control systems
02
electric
418
Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control (DNC), flexible manufacturing systems (FMS), integrated manufacturing systems (IMS), computer integrated manufacturing (CIM)
CPC:
G05B 19/41875
G05B 23/0227
G05B 2219/32191
Y02P 90/22
Y02P 90/86
G06F 17/18
Applicants: OMRON TATEISI ELECTRONICS CO., LTD.
欧姆龙株式会社
Inventors: TASAKI HIROSHI
田崎博
Agents: 北京同立钧成知识产权代理有限公司 11205
北京同立钧成知识产权代理有限公司 11205
Priority Data: 2016-023058 09.02.2016 JP
Title: (EN) MONITORING DEVICE, AND METHOD FOR CONTROLLING MONITORING DEVICE
(ZH) 监视装置及监视装置的控制方法
Abstract: front page image
(EN) A state change detection unit obtains the data generation probability on the basis of the value of observation data, and the value of a parameter of a prior distribution, obtains, on the basis of thedata generation probability, a run length probability distribution for when the time-series observation data acquired up to the current point in time is used as a condition, and detects a change in the state of a facility on the basis of the run length probability distribution. Furthermore, an update unit updates the value of the parameter of the prior distribution using the value of the observation data, to generate the prior distribution to be used for calculating the data generation probability at the next point in time. In cases when the current point in time is determined to be a point ofchange in the state of the facility, the state change detection unit also searches for a change indication point, i.e. a point in time at which an indication of the change in the state of the facility began to appear, on the basis of the run length probability distribution.
(ZH) 状态变化检测部基于观测数据的值与先验分布的参数的值而求出数据发生概率,并且基于数据发生概率,求出以到当前时间点为止所取得的时间序列的观测数据为条件时的游程长度概率分布,基于游程长度概率分布来检测目标设备的状态变化。接着,更新部使用观测数据的值来对先验分布的参数的值进行更新,由此,产生在下一个时间点的数据发生概率的计算中使用的先验分布。状态变化检测部在判定为当前时间点是目标设备的状态的变化点的情况下,进一步基于游程长度概率分布来搜寻目标设备的状态变化的预兆开始出现的时间点作为变化预兆点。
Also published as:
US20180232339EP3416011WO/2017/138238