JP2005078283A - Plant equipment remote monitoring system and plant equipment remote monitoring method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plant equipment remote monitoring system in which a supervisor outside the plant checks a state of a plant equipment and presents an appropriate instruction. <P>SOLUTION: The plant equipment remote monitoring system is provided with a site terminal device 2 which is disposed in the plant provided with the plant equipment 1, a remote information terminal device 3 disposed at a site different from the local terminal device, and a communication means 10 which includes an information communication medium 5 capable of intercommunication between the site terminal device 2 and the remote information terminal device 3. The local terminal device 2 is provided with a measurement means 6 obtaining plant equipment state information indicating the state of the plant equipment 1, and a site display means 7 displaying the state of the plant equipment 1 on the basis of the plant equipment state information. The communication means 10 is configured so as to successively transmit the plant equipment state information to the remote information terminal device 3. The remote information terminal device 3 is provided with a remote display means 11 displaying the state of the plant equipment 1 in real time on the basis of the plant equipment state information transmitted by the communication means 10 . <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a plant equipment remote monitoring system and a plant equipment remote monitoring method using the system, and in particular, in the adjustment work or start-up of equipment in a plant, monitoring of site conditions and instructions to site workers are performed remotely. The present invention relates to a plant equipment remote monitoring system and a plant equipment remote monitoring method that can be implemented from the above.

  Conventionally, during equipment adjustment work and trial operation during regular plant inspections, plant managers and equipment manufacturer personnel are present as supervisors to confirm on-site work and measurement records, and the equipment is normal. The work has been completed.

  On the other hand, in the plant management company, the efficiency of the periodic inspection work aiming at the improvement of the operation rate of the plant is achieved. It is necessary to efficiently carry out from the adjustment work of multiple equipment in the plant to trial operation, and further confirmation work, but at present, in order to carry out on-site confirmation work and witness work for multiple equipment, Securing human resources capable of supervising work and time issues associated with movement between sites is an issue.

With respect to such problems, there are Patent Document 1 and Patent Document 2 as systems for improving work efficiency by sharing information necessary for inspection and maintenance work between the site and the office. Moreover, there is Patent Document 3 as a system for providing support without an expert going to the site.
JP-A-11-202904 Japanese Patent No. 2920449 JP 2000-234987 A

  For example, at the time of adjusting or starting up a rotating machine, it is necessary to check information that changes every moment such as vibration, temperature, pressure, etc. at a place different from the site, and to provide instructions from the supervisor. On the other hand, even when on-site images and equipment drawings are shared between the site and remote offices as information necessary for inspection and maintenance work, temporary values for vibration, temperature, pressure, etc. Is sent to the remote office side and is subject to supervisor and system judgment. In this case, it is difficult to make a determination corresponding to the state of the device that changes every moment, and it is not possible to sufficiently confirm the state of the on-site device and provide a determination.

  In addition, when checking the state of field equipment and giving instructions to the site from a place different from the site, the plant manager and the person in charge of the equipment manufacturer are often in different places. For example, it is assumed that a person in charge of an electric power company who is a plant manager is in an office in a site where the plant is located or an office outside the site. In addition, it is assumed that the person in charge of the device manufacturer is in an office on the site or a manufacturer office outside the site.

In order to carry out more efficient on-site confirmation work and witness work, a system that can grasp the state of equipment on the site from a plurality of locations and send instructions to the site is necessary. In addition, when the site side is a power plant or the like, when the power plant site is a dedicated communication line on the premises, it cannot communicate directly with a public line outside the site. In such a case, it is difficult to perform direct communication between the site and outside the site, particularly between the device manufacturer and the site.
Also, from the viewpoint of maintaining the reliability of information related to the results of field work and witness work, it is desirable to grasp the field conditions from a plurality of locations.

  It is an object of the present invention to provide a plant equipment remote monitoring system and method for enabling supervisors inside or outside the site to easily check the equipment status at the time of adjustment work or start-up of the plant equipment and present appropriate instructions. It is to be.

  The present invention is in accordance with the above object, and the invention according to claim 1 is a field terminal device installed in a plant having plant equipment, and remote information installed in a place different from the field terminal device. A plant equipment remote monitoring system comprising: a terminal device; and a communication unit including an information communication medium that enables mutual communication between the field terminal device and the remote information terminal device. Measuring means for acquiring plant equipment state information representing the state of equipment, and on-site display means for displaying the state of the plant equipment based on the plant equipment state information, wherein the communication means is the plant equipment state Information is sequentially sent to the remote information terminal device, and the remote information terminal device is based on the plant equipment state information sent by the communication means. There are further comprising a remote display means for displaying the status of the plant equipment in real time, characterized by.

  The invention described in claim 12 is a site terminal device installed in a plant having plant equipment, a remote information terminal device installed in a place different from the site terminal device, and remote from the site terminal device. And a communication means including an information communication medium enabling mutual communication with the information terminal device, in the plant equipment remote monitoring method for monitoring the plant equipment using the field terminal device, the state of the plant equipment A measuring step for obtaining plant equipment state information representing, a field display step for displaying the state of the plant equipment based on the plant equipment state information at the field terminal device, and the plant equipment state information by the communication means Are sequentially transmitted to the remote information terminal device, and the remote information terminal device transmits the program sent in the communication step. A remote display step of displaying the status of the plant equipment in real time based on the cement device state information, and having a.

  According to the present invention, a supervisor at a remote location can confirm the situation in the field in real time. As a result, the supervisor can accurately check the situation on the site without going to the site, make a decision, and instruct the site. Therefore, more efficient on-site confirmation work and witness work can be performed.

  Embodiments of a plant equipment remote monitoring system according to the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration example of a plant equipment remote monitoring system according to the present invention. A measurement sensor 15 that measures the state of the target plant device 1 is installed at the site, and information representing the state of the target plant device 1 such as vibration, temperature, pressure, and the like is measured by the measurement means 6 of the site terminal device 2. The measured information is displayed on the site terminal device 2 in a form that can be recognized by the site worker by the display means 7. It is also possible to perform analysis processing such as average processing of measured information, maximum value calculation or frequency analysis by the analysis processing means 9 and display on the field terminal device 2 by the display means 7.

  The measured information or the analyzed information is transmitted by the information communication means 8 of the field terminal device 2 and received by the information distribution device 4 via the information communication medium 5. The information distribution device 4 transmits the received information to one or more remote information terminal devices 3 via the information communication medium 5. The remote information terminal device 3 receives information by the information communication means 10 and displays it on the remote information terminal device 3 by the field information display means 11. The supervisor can confirm the state of the on-site equipment from the displayed contents.

  Of course, the remote information terminal device 3 may be installed outside the plant. However, the remote information terminal device 3 may be installed in a different location (for example, a central control room or office in the plant) within the plant. May be.

  Here, the on-site terminal device 2 can measure the state of the target plant equipment 1 continuously or at regular time intervals (periodically) through the measurement sensor 15. Further, the information distribution device 4 can continuously receive information sent from the field terminal device 2 and transmit it to the remote information terminal device 3. Thereby, the supervisor can grasp in real time the state of the target plant equipment 1 at the site that changes every moment, and can make an appropriate judgment.

  Further, the supervisor uses the measurement condition input means 13 of the remote information terminal device 3 to measure the recording conditions or the sampling frequency in the measurement means 6 of the field terminal device 2 or the information displayed by the display means 7 of the field terminal device 2. Can be changed. As a result, it is possible to reduce the field operator's mistakes in setting the conditions in the measurement work, and the remote supervisor can operate the on-site terminal device, thus reducing the amount of work for the on-site worker. It becomes.

  Furthermore, the instruction from the supervisor, such as the result of pass / fail judgment of the target plant equipment 1, the cause of the abnormality and the response method, is input to the instruction input means 14, and is presented to the field worker by the display means 7 of the field terminal device 2. Is done. Thereby, it is possible to give an accurate instruction to the field worker.

  Further, the remote information terminal device 3 estimates the cause of the abnormality of the plant equipment based on the vibration data obtained as a result of analyzing the information indicating the operation state or the adjustment state of the plant equipment acquired by the site terminal device 2 or the information. You may have a cause estimation means.

  Further, the remote information terminal device 3 may have a reproducing means for reproducing the vibration information of the plant equipment acquired by the site terminal device 2 as sound. As a result, the supervisor can confirm the vibration status of the on-site equipment as sound information in addition to the screen information displayed on the remote information terminal device 3, thereby enabling more accurate quality determination.

  Further, the remote information terminal device 3 may have vibration reproduction means for reproducing the vibration of the plant equipment based on the vibration information acquired by the site terminal device 2. As a result, the supervisor can confirm the vibration status of the on-site plant equipment 1 as a tactile sensation in addition to the screen information and sound information displayed on the remote information terminal device 3, thereby enabling more accurate quality determination.

  The information communication medium 5 is a public line, a digital line (ISDN), a public PHS line, or a private PHS line. If the public line or the public PHS line can be used on the site side where the target plant equipment 1 is located, it is possible to communicate between the site and the plant management company office or equipment manufacturer office outside the plant. When the side can use only the private PHS line, since it cannot communicate directly outside the plant, the remote information terminal device 3 is limited to a place where the private PHS line can be used. Here, the information distribution apparatus 4 has a relay function between the private PHS line on the premises and the public line or ISDN or public PHS line, thereby enabling communication between the site and outside the plant.

  FIG. 2 is a block diagram showing a configuration when the information distribution means 16 of the site terminal 2 has the functions of the distribution device 4 shown in FIG. In this case, the information measured by the field terminal device 2 or the information subjected to the analysis process is directly transmitted from the field terminal device 2 to the remote information terminal device 3. In this case, when the site can use a public line, the site is the information communication medium 5 that can communicate directly with the outside of the plant, and since the information distribution device 4 is not provided, the equipment can be reduced. Is possible.

  FIG. 3 shows a configuration example of the plant equipment remote monitoring system. This shows a case where the target plant device 1 is a rotating device, and an example is shown in which the PHS is used when the site side is in the area of the plant or the power company dedicated line.

  Here, the on-site terminal device 1 includes a measurement sensor 15, a measurement sensor amplifier unit 17, an on-site terminal device PC (personal computer) 18, and a private line dedicated PHS terminal 19 that implements information communication means 8. The on-site terminal device PC 18 displays information obtained through the amplifier unit 17 on the screen and transmits it to the local PHS line 20 through the local line dedicated PHS terminal 19.

  The information distribution apparatus 4 receives communication by the private line dedicated PHS modem 21 and the dial-up router 22 and establishes a communication line. Each remote terminal device 3 needs to establish communication with the information distribution device 4, but the remote terminal device 3 in the area of the plant or power company dedicated line establishes communication through the local PHS line 20.

  On the other hand, the remote terminal device 3 in the public line area establishes communication with the public line PHS modem 23 and the public PHS terminal 25. After each communication is established, the information distribution device 4 distributes the information acquired by the site terminal device 2 to each remote information terminal device 3. Each remote information terminal device 3 displays the received information on the screen, so that the supervisor can confirm the state of the field equipment.

  FIG. 4 shows an on-site terminal device screen display 32 as an example of a screen displayed on the on-site terminal device 2. FIG. 5 shows a remote information terminal device screen display 33 as an example of a screen displayed on the remote information terminal device 3 at this time. Each screen displays the original waveform and the spectrum obtained as a result of frequency analysis as the vibration status of the target plant equipment 1. This information is updated at any time, and it is possible to grasp in real time the state of the device that changes every moment.

  Further, switching of information to be displayed, for example, display switching of the original waveform and spectrum, can be performed by a button on the remote terminal device screen 33. As a result, the supervisor can arbitrarily select and display necessary information for determination.

  In addition, the supervisor of the field terminal device screen display 32 and the remote information terminal device screen display 33 uses, for example, a maximum value (peak-to-peak; PP) or an effective value (root mean square; RMS) for judgment. By displaying the time-series information of information, it is possible to make a determination based on a change tendency.

  In addition, the supervisor displays the measurement conditions of the on-site terminal device 2 shown in FIG. 6 on the screen of the remote information terminal device 3, and can confirm the setting of each recording channel or change the setting. As a result, it is possible to reduce setting errors of the field workers and the amount of work.

  FIG. 7 shows an example of the adjustment work situation of the shaft joint when the target plant device 1 is a rotating device. FIG. 8 shows an example of the on-site information terminal device screen display 27 for adjustment work at this time. Here, the distance from the shaft is measured by the displacement meter 34 as the measurement sensor 15, the phase difference between the circumferential position of the rotating shaft and the distance from the shaft is measured by using the rotation pulse meter 26, and the shaft joint is aligned. An example of monitoring the work to be performed is shown.

  In the adjustment operation, the shaft is rotated, and the displacement direction and amount of the shaft joint are detected from the distance from the shaft measured by the displacement meter 34 and the phase difference measured by the rotation pulse meter 26, and the displacement amount is detected. Adjustment work is performed so as to reduce. Here, the shift direction and the amount of the shaft joint measured by the field terminal device 2 are displayed, and the adjustment target is calculated by the analysis means. The result is displayed as a current position coordinate display 29 and an adjustment target position coordinate display 30 of the axis position coordinate display 28. Based on this result, field workers will perform adjustment work. This display information is displayed on the remote information terminal device 3 so that the supervisor confirms the adjustment status and determines the quality.

The block diagram showing the structure of one Embodiment of the plant equipment remote monitoring system which concerns on this invention. The block diagram showing the structure of other embodiment of the plant equipment remote monitoring system which concerns on this invention. The schematic diagram showing the structure of one Embodiment of the plant equipment remote monitoring system which concerns on this invention. The figure which shows the example of a display of the site terminal apparatus screen in one Embodiment of the plant equipment remote monitoring system which concerns on this invention. The figure which shows the example of a display of the remote information terminal device screen corresponding to FIG. The figure which shows the example of a screen display when displaying measurement conditions on the remote information terminal device in one embodiment of the plant equipment remote monitoring system according to the present invention. The schematic diagram which shows the condition of the adjustment work in the field in one Embodiment of the plant equipment remote monitoring system which concerns on this invention. The figure which shows the example of a display of the site information terminal device screen for adjustment work in the condition of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Target plant apparatus, 2 ... Site terminal device, 3 ... Remote information terminal device, 4 ... Information distribution device, 5 ... Information communication medium, 6 ... Measuring means, 7 ... Display means, 8 ... Information communication means, 9 ... Analysis Processing means, 10 ... Information communication means, 11 ... Site information display means, 12 ... Analysis processing means, 13 ... Measurement condition input means, 14 ... Instruction input means, 15 ... Measurement sensor, 16 ... Information distribution means, 17 ... Amplifier unit , 18 ... PC for field terminal equipment, 19 ... PHS terminal for private line, 20 ... Private PHS line, 21 ... PHS modem for private line, 22 ... Dial-up router, 23 ... PHS modem for public line, 24 ... Public PHS 25, public PHS terminal, 26 ... rotational pulse meter, 27 ... field information terminal screen display for adjustment work, 28 ... axis position coordinate display, 29 ... current position coordinate display, 30 ... adjustment target Location coordinate display, 32 ... field terminal screen, 33 ... remote information terminal screen, 34 ... displacement meter.

Claims (12)

Intercommunication between a field terminal device installed in a plant having plant equipment, a remote information terminal device installed in a place different from the field terminal device, and the field terminal device and the remote information terminal device In a plant equipment remote monitoring system having a communication means including an information communication medium to enable,
The on-site terminal device has measuring means for acquiring plant equipment state information representing the state of the plant equipment, and on-site display means for displaying the state of the plant equipment based on the plant equipment state information,
The communication means is configured to sequentially send the plant equipment state information to the remote information terminal device,
The remote information terminal device comprises a remote display means for displaying the status of the plant equipment in real time based on the plant equipment status information sent by the communication means;
Plant equipment remote monitoring system.   The plant equipment remote monitoring system according to claim 1, wherein the field information terminal device includes information distribution means for sequentially sending the plant equipment state information to the remote information terminal device through the information communication medium. Plant equipment remote monitoring system. In the plant equipment remote monitoring system according to claim 1,
The information communication medium has a private line and a public line dedicated to the plant,
The communication means further includes a distribution device for relaying the local line and the public line;
Plant equipment remote monitoring system. In the plant equipment remote monitoring system according to any one of claims 1 to 3,
The remote information terminal device has a field terminal operation means that enables the measurement conditions in the measurement means or the information displayed by the field display means to be changed;
Plant equipment remote monitoring system. In the plant equipment remote monitoring system according to any one of claims 1 to 4,
At least a part of the information displayed on the site display means is configured to be displayed on the remote display means;
Plant equipment remote monitoring system. In the plant equipment remote monitoring system according to any one of claims 1 to 5,
The remote information terminal device has analysis means for performing analysis processing based on the plant equipment state information received through the communication means;
Plant equipment remote monitoring system. In the plant equipment remote monitoring system according to any one of claims 1 to 6,
The remote information terminal device has a judgment means for judging the quality of the plant equipment based on the plant equipment status information received through the communication means or the result of analysis processing by the analysis means;
Plant equipment remote monitoring system. In the plant equipment remote monitoring system according to any one of claims 1 to 7,
The remote information terminal device estimates the cause of the abnormality of the plant equipment based on the vibration data when the plant equipment state information received through the communication means or the result of analysis processing by the analysis means includes vibration data. Having cause estimation means to
Plant equipment remote monitoring system. In the plant equipment remote monitoring system according to any one of claims 1 to 8,
The remote information terminal device has an instruction input means for inputting an instruction of a supervisor;
The field terminal device has an instruction display means for displaying an instruction of the supervisor input by an instruction input means of the remote information terminal device;
Plant equipment remote monitoring system. In the plant equipment remote monitoring system according to any one of claims 1 to 9,
The measuring means includes vibration measuring means for measuring vibration of the plant equipment,
The remote information terminal device has a reproducing means for reproducing the vibration information of the plant equipment acquired by the vibration measuring means as sound;
Plant equipment remote monitoring system. In the plant equipment remote monitoring system according to any one of claims 1 to 10,
The measuring means includes vibration measuring means for measuring vibration of the plant equipment,
The remote information terminal device has vibration reproduction means for reproducing vibration of the plant equipment based on vibration information of the plant equipment acquired by the vibration measurement means;
Plant equipment remote monitoring system. Intercommunication between a field terminal device installed in a plant having plant equipment, a remote information terminal device installed in a place different from the field terminal device, and the field terminal device and the remote information terminal device In a plant equipment remote monitoring method for monitoring the plant equipment using a communication means including an information communication medium to enable,
In the field terminal device, a measurement step for acquiring plant equipment state information representing the state of the plant equipment,
In the site terminal device, a site display step for displaying the status of the plant equipment based on the plant equipment status information,
A communication step of sequentially sending the plant equipment state information to the remote information terminal device by the communication means;
In the remote information terminal device, a remote display step for displaying the state of the plant equipment in real time based on the plant equipment state information sent in the communication step;
A plant equipment remote monitoring method comprising:

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