Instrumentation and control information providing method, instrumentation and control information providing system, instrumentation and control information providing server, and instrumentation and control equipment

• US 7,873,692 B2
• Filed: 12/19/2003
• Issued: 01/18/2011
• Est. Priority Date: 12/20/2002
• Status: Active Grant

• Current Assignee: Omron Corporation
• Original Assignee: Omron Corporation
• Inventors: Togawa, Hiroyuki, Ando, Kosaku, Nanno, Ikuo, Yamada, Takaaki, Tanaka, Hitoshi
• Primary Examiner(s): Bruckart; Benjamin R
• Assistant Examiner(s): Beharry; Noel
• Application Number:
  US10/738,988
• Publication Number:
  US 20040186664A1
• Time in Patent Office: 2,587 Days
• Field of Search: 709/224, 709/201, 709/203
• US Class Current: 709/203
• CPC Class Codes: G05B 17/02 electric
• CPC Class Codes: G05B 2223/06 Remote monitoring
• CPC Class Codes: G05B 23/0243 model based detection method, e.g. first-principles knowledge model
• CPC Class Codes: G05D 23/1905 associated with tele control

Abstract

A customer submits a service application by accessing the home page of a service provider through a personal computer 3, and transmits the data including the operation amount and the control amount of a temperature controller 4 to a server 2 of the service provider. The server 2 accumulates the received data, and in accordance with the contents of the received service application, processes the accumulated data and provides the services of calculating the control parameter for the temperature controller 4, producing a model of the object of control and making a diagnosis by checking for a temperature control fault.

Claims

1. An instrumentation and control information providing method for providing information related to instrumentation and control, comprising:

an application step for a client to submit a service application to a server;

a transmission step for said client to transmit to the server through a network the instrumentation and control data obtained by measuring and controlling an object of instrumentation and control by an instrumentation and control equipment;

an application receiving step for said server to receive a service application from said client;

a data accumulation step for said server to receive and accumulate said instrumentation and control data;

a processing step for said server to process the accumulated instrumentation and control data in accordance with the received service application; and

a providing step for said server to provide information processed in said processing step as said information related to instrumentation and control to said client through said network,

wherein said instrumentation and control equipment is a temperature controller, and said instrumentation and control data include at least data on an output value and an input value, and

wherein the services provided by said server include a data accumulation service for accumulating said instrumentation and control data and providing the accumulated data in compliance with a request, a tuning service for providing a control parameter of said temperature controller, a modeling service for modeling an object of instrumentation and control and providing a model, and a diagnosis service for checking for a temperature control fault of said temperature controller,

wherein said processing step processes one of said data accumulation service, said tuning service, said modeling service and said diagnosis service in accordance with the contents of said service application,

wherein a process of reading the corresponding data from the accumulated data in compliance with the service application is executed as said data accumulation service, a process of calculating the control parameter using a model of the object of instrumentation and control based on said accumulated data of the output value and the input value is executed as said tuning service, a process of modeling said object of instrumentation and control based on said accumulated data of the output value and the input value is executed as said modeling service, and a process of checking for a fault based on said data of the output value and the input value accumulated for a normal period and a diagnosis period is executed as said diagnosis service,

said tuning service includes a process of modeling said object of instrumentation and control based on said data on the input and output values to determine a model structure and calculating as said processed information a PID gain of said temperature controller using said model structure based on said accumulated data and a process of simulating a PID control of said determined model structure using said calculated PHD gain based on said data on the input and output values to produce a simulation output waveform, and providing thus produced output waveform as said processed information preceding a completion of said tuning service;

said modeling service includes a process of modeling said object of instrumentation and control based on said data on the input and output values to determine a model structure as said processed information and a process of simulating an output waveform of said determined model structure based on said accumulated instrumentation and control data to produce a simulation output waveform and a difference between said simulation output waveform and an actual output waveform based on said accumulated instrumentation and control data, and providing thus produced simulation and difference output waveforms as said processed information preceding a completion of said modeling service; and

said diagnosis service includes a process of modeling said object of instrumentation and control based on said data on the input and output values to determine a model structure and checking for a fault using said model structure based on said data on the input and output values for the normal period and the diagnosis period to generate a diagnosis result as said processed information and a process of simulating an output waveform of said determined model structure based on said accumulated instrumentation and control data to produce an outline of said diagnosis result, and providing thus produced outline of said diagnosis result as said processed information preceding a completion of said diagnosis service.

2. The instrumentation and control information providing method according to claim 1,

wherein at least one of the steps executed by at least one of said server and said client includes a step of urging one of the service providing party and the service receiving party to input the required information, and said at least one of the steps is executed based on said input required information.

3. The instrumentation and control information providing method according to claim 2,

wherein said processing step includes a step for said server to urge the service providing party to input said required information, and said server executes the process in accordance with the received service application by adding said input required information.

4. The instrumentation and control information providing method according to claim 1, wherein said instrumentation and control data transmitted from said client to said server in said transmission step is compressed data obtained by sampling instrumentation and control data obtained from said object of instrumentation and control with a change of or beyond a predetermined threshold value.

5. An instrumentation and control information providing system comprising a server connected to a network for providing a service related to the instrumentation and control, and a client connected to said network,

wherein said client has communication means for transmitting to said server through said network instrumentation and control data obtained by measuring and controlling an object of instrumentation and control by an instrumentation and control equipment and receiving the information provided by said server through said network, and application means for submitting a service application by browsing the contents of said service, and

wherein said server has data accumulation means for accumulating said instrumentation and control data, application receiving means for receiving a service application from said client, processing means for reading the instrumentation and control data accumulated in said data accumulation means and executing the process corresponding to the received service application, and communication means for receiving said instrumentation and control data from said client through said network and transmitting the information processed in said processing means to said client through said network,

wherein said instrumentation and control equipment is a temperature controller, and said instrumentation and control data include at least the data of the output value and the input value, and

wherein the services provided by said server include a data accumulation service for accumulating said instrumentation and control data and providing the accumulated data in compliance with a request, a tuning service for providing the control parameter of said temperature controller, a modeling service for modeling an object of instrumentation and control and providing a model, and a diagnosis service for checking for a temperature control fault of said temperature controller,

wherein said server executes a process corresponding to the contents of at least one of said data accumulation service, said tuning service, said modeling service and said diagnosis service in accordance with the contents of said service application,

wherein a process of reading the corresponding data from the accumulated data in compliance with the request of said client is executed as said data accumulation service, the process of calculating the control parameter using a model of the object of instrumentation and control based on said accumulated data of the output value and the input value is executed as said tuning service, a process of modeling said object of instrumentation and control based on said accumulated data of the output value and the input value is executed as said modeling service, and a process of checking for a fault based on said data of the output value and the input value accumulated for a normal period and a diagnosis period is executed as said diagnosis service,

said processing means is further adapted as said tuning service to process modeling of said object of instrumentation and control based on said data on the input and output values to determine a model structure and calculating as said processed information a PID gain of said temperature controller using said model structure based on said accumulated data and to process simulating a PID control of said determined model structure using said calculated PID gain based on said data on the input and output values to produce a simulation output waveform, and to provide thus produced output waveform as said processed information preceding a completion of said tuning service;

as said modeling service to process modeling of said object of instrumentation and control based on said data on the input and output values to determine a model structure as said processed information, and to process simulating an output waveform of said determined model structure based on said accumulated instrumentation and control data to produce a simulation output waveform and a difference between said simulation output waveform and an actual output waveform based on said accumulated instrumentation and control data, and to provide thus produced simulation and difference output waveforms as said processed information preceding a completion of said modeling service; and

as said diagnosis service to process modeling of said object of instrumentation and control based on said data on the input and output values to determine a model structure and checking for a fault using said model structure based on said data on the input and output values for the normal period and the diagnosis period to generate a diagnosis result as said processed information, and to process simulating an output waveform of said determined model structure based on said accumulated instrumentation and control data to produce an outline of said diagnosis result, and to provide thus produced outline of said diagnosis result as said processed information preceding a completion of said diagnosis service.

6. The instrumentation and control information providing system according to claim 5,

wherein said server urges the service providing party to input the required information, and based on the input required information, executes the process corresponding to the contents of at least one of said data accumulation service, said tuning service, said modeling service and said diagnosis service.