JP2001022432A - Operation monitoring system for plant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation monitoring system for plant, which can accurately grasp the operation situation of an object to be monitored without impairing responsiveness. SOLUTION: A data terminal unit 2 which can transmit/receive a PHS signal, always detects the operation state of an object 1 to be monitored in a plant and PHS-transmits the detection signal, a wireless station 3 transmitting/ receiving the PHS signal from the data terminal unit 2 and a concentration station 3 which remotely monitors the object 1 by the PHS signal through the wireless station 3 are installed. The data terminal 2 has a means emitting the PHS signal on the object 1 with a prescribed condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PHS (Personal Handy Horn System) for monitoring equipment to be monitored operating in a plant, operating conditions, set values, sounds, etc. of a driving device for driving the equipment. The present invention relates to an operation monitoring system of a plant for monitoring operation of an object to be monitored by bidirectionally transmitting and receiving signals between a site of the plant and a remote place at a handy terminal or the like.

[0002]

2. Description of the Related Art Conventionally, in the operation monitoring of a plant, the operation status of a large number of devices installed on the premises of a large plant and the devices driving the devices are monitored and operated on site or remotely. Data required for monitoring and operation is processed prior to transmission, and the processed data is transmitted to a remote side or the like.

However, when it is desired to monitor the detailed contents of the monitored object of the plant, the amount of data to be transmitted is very large. On the other hand, since the amount of data that can be transmitted is limited, it is inevitable to select data to be transmitted. If data selection is performed, data shortage will be caused, and it will be impossible to accurately grasp the driving situation. In addition, when a large amount of data is forcibly transmitted, it takes time to scan all the data every time the data amount increases, resulting in a problem that the response becomes slow.

[0004]

As described above, when monitoring an object to be monitored from a distance, the conventional data processing method always transmits all data and always processes all data for processing. Need to scan. For this reason, there is a problem that the amount of data to be transmitted becomes enormous at all times and the scanning time increases.

An object of the present invention is to provide a plant operation monitoring system capable of accurately grasping the operation state of a monitored object without impairing responsiveness.

[0006]

In order to solve the above-mentioned problems, the present invention has means for transmitting and receiving a PHS signal, constantly detects the operating state of a monitored object in a plant, and transmits the detected signal by PHS. A data terminal, a wireless station for transmitting and receiving a PHS signal from the data terminal, and a centralized station for remotely monitoring the monitored object by the PHS signal via the wireless station, the data terminal comprising: Means for transmitting a PHS signal relating to the monitored object under a predetermined condition, wherein the data terminal determines that the predetermined condition is satisfied when the monitored object is in a specific state, and transmits an alarm signal only at this time. And alerts centralized stations that are remotely monitored via wireless data stations that can transmit and receive PHS signals. Will be able to view, at all times, on the need to monitor remotely eliminates, responsiveness without impairing, it becomes possible to accurately grasp the operating conditions of the monitored subject.

The present invention also provides a data terminal and a display device provided in an operation room of a machine plant, having means for detecting an operating state of a monitored object in the machine plant and transmitting and receiving the detection signal by PHS. PHS brought by members
A handy terminal, the data terminal and the P
A wireless station for transmitting and receiving a PHS signal from an HS handy terminal, and a centralized station for remotely monitoring the monitored object by the PHS signal via the wireless station. In monitoring, the PHS signal can be used to transmit and receive voice or data in both directions between the operation room, the site, and the center, so that the operating status of the monitored object can be accurately grasped without impairing responsiveness. And effective maintenance can be performed.

[0008] The present invention further provides a mobile unit equipped with a PHS handy terminal, a data terminal having means for transmitting and receiving PHS, a display device provided with the data terminal, and a weight detector for detecting the weight of the mobile unit. A device, a wireless station for transmitting and receiving PHS signals from the data terminal and the PHS handy terminal,
The mobile unit is connected to the P via the wireless station.
By providing a centralized station that remotely monitors by an HS signal and receives a signal from the weight detection device, taking shipment management of dump truck luggage as an example of operation monitoring of a mobile body, By mounting a handy terminal having a PHS transmission / reception function on a dump truck, information can be bidirectionally exchanged between a wireless data station capable of transmitting / receiving a PHS signal and a central station remotely monitored, and a dump truck. Detecting the weight of the truck and processing the data without stopping the operation facilitates shipping management. As a result, the operation status of the dump truck can be accurately grasped without impairing the responsiveness, and effective maintenance management becomes possible.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a plant operation monitoring system according to the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 shows an operation monitoring system according to a first embodiment of the present invention. When an abnormality has occurred in a monitored object, an operation monitoring system capable of displaying an alarm is provided. It is a configuration example applied to monitoring.

As shown in FIG. 1, in this embodiment, a data terminal 2 is connected to a monitored object 1 installed at the site of a plant. The data terminal 2 collects data on the monitored object 1, such as vibration of the rotating body, temperature 1A of the rotating body, current, voltage and rotation speed 1B of the motor, pressure, temperature and vibration 1C of the compressor.

The data terminal 2 has a PHS transmission / reception function. In addition, corresponding to the data terminal 2, PHS
A wireless station 3 capable of transmitting and receiving signals is provided. The wireless station 3 includes a centralized station 4, a LAN (local area network)
20, is connected to a remote monitoring system 22 by a manufacturer via a public line 21. Here, the data terminal 2 and the wireless station 3 are site-side devices, and the central station 4, the LAN 20, the public line 21,
The remote monitoring system 22 is a central device.

Data such as vibration, temperature, and current of a rotating body, a motor, a compressor, and the like, which are elements for knowing the operating state of the monitored object 1, are input to a data terminal 2 having a PHS transmission / reception function. By performing the data processing, the operation monitoring of the monitored object 1 is always performed. And
If an abnormality occurs in the operation of the monitored object 1, an abnormality also appears in the data input to the data terminal 2. Therefore, the change is detected, and the data terminal 2 transmits the PHS signal to the PHS signal. Through the wireless station 3 that can transmit and receive signals, an alarm can be displayed at the centralized station 4 that remotely monitors operation.

(Second Embodiment) FIG. 2 shows an operation monitoring system according to a second embodiment of the present invention. When it is desired to grasp the operation state of an object to be monitored, an operation monitoring device capable of monitoring the plant is operated. It is a configuration example applied to monitoring.

In the present embodiment, as in the first embodiment, the data terminal 2 having the function of transmitting and receiving a PHS is provided with a vibration which is an element for knowing the operation state of the monitoring target 1 installed at the site of the plant. , Temperature, current, etc., and perform data processing. Then, when it is desired to grasp the operation state of the monitored object 1 at the centralized station 4 which is remotely monitoring the operation, the contents of the data terminal 2 are called via the wireless station 3 and the data is transmitted from the data terminal 2. Configuration.

With this configuration, it is possible to display the operation state of the monitored object 1 via the data terminal 2 at the centralized station 4 that is remotely monitoring the operation.

(Third Embodiment) FIG. 3 shows an operation monitoring system according to a third embodiment of the present invention. This is an example of the configuration applied to operation monitoring.

In the present embodiment, in monitoring the operation of the plant, a maintenance person who patrols a large site brings a handy terminal 5 having a PHS transmission / reception function.
Between the handy terminal 5 and the wireless station 3, from the center to the site, or from the site to the center, information is converted into a PHS signal so that information can be transmitted and received via the wireless station 3. . This enables effective maintenance management.

(Fourth Embodiment) FIG. 4 shows an operation monitoring system according to a fourth embodiment of the present invention, in which data can be bidirectionally transmitted and received between a control panel and a central monitoring panel. Is a configuration example in which is applied to plant operation monitoring.

In this embodiment, the control panel 6 of the monitored object 1
Is provided with a data terminal 2. This data terminal 2
Has a PHS transmission / reception function and is connected to the personal computer 7. Therefore, the data terminal 2 can always detect the operating state of the monitored object 1 while being connected to the personal computer 7 and communicate with the wireless station 3 by the PHS signal.

Thus, when it is desired to grasp the operating state of the monitored object 1 beside the control panel 6, data indicating the operating state of the monitored object 1 collected via the data terminal 2 is stored on the personal computer 7. Can be displayed.

When the display contents are to be displayed at the remote centralized station 4, the contents are transmitted via the wireless station 3 by a PHS signal, and the remote instruction contents are transmitted through the reverse route. By enabling display on the personal computer 7, effective maintenance management becomes possible.

(Fifth Embodiment) FIG. 5 shows an operation monitoring system according to a fifth embodiment of the present invention, in which data can be exchanged bidirectionally between a personal computer and a central monitoring panel. Is a configuration example in which is applied to plant operation monitoring.

In the centralized station 4 of this embodiment, information such as an instruction manual of the monitored object 1 is stored in advance. When monitoring the operation of the plant, a handy terminal 5 having a PHS transmission / reception function is connected to a personal computer 7 using information such as an instruction manual stored in the centralized station 4, and the personal computer 7 is connected via the wireless station 3. Display on the screen.

As a result, necessary data and information can be obtained each time without having to bring a thick document such as an instruction manual of the monitored object 1, so that effective maintenance management can be performed.

(Sixth Embodiment) FIG. 6 shows an operation monitoring system according to a sixth embodiment of the present invention, in which data is bidirectionally transmitted between a control panel to which a handy terminal can be connected and a central monitoring panel. 1 is a configuration example in which an operation monitoring system that can be exchanged is applied to operation monitoring of a plant.

In this embodiment, in the operation monitoring of the plant, a handy terminal 5 having a function of transmitting and receiving a PHS is provided on a control panel 6 for controlling a motor driving the object 1 to be monitored.
When an abnormality such as a trip occurs in the motor driving the monitored object 1, an abnormal signal is transmitted from the handy terminal 5 to the centralized station 4 for remotely monitoring via the wireless station 3. I do.

Thus, the failure of the motor driving the monitored object 1 and the control panel 6 can be confirmed, and if necessary, the setting can be directly changed for the failed control panel 6 remotely. Therefore, it is not necessary to dispatch a coordinator who is skilled in the adjustment every time, so that effective maintenance can be performed.

(Seventh Embodiment) FIG. 7 shows an operation monitoring system according to a seventh embodiment of the present invention, in which data is bidirectionally transmitted between a control panel and a central monitoring panel via a public line. 1 is a configuration example in which an operation monitoring system capable of giving and receiving a request is applied to operation monitoring of a plant.

In this embodiment, a handy terminal 5 having a PHS transmission / reception function is connected to a control panel 6 for controlling a motor driving the monitored object 1. The plurality of wireless stations 3 are connected to a public line 8,
It is connected to the central station 4 via a telephone exchange 9.

Thus, the handy terminal 5 which can be directly connected to the public line 8 is connected to the control panel 6 when an abnormality such as a trip occurs in the control panel 6 which controls the motor driving the monitored object 1. Therefore, the contents of the abnormality in the control panel 6 can be displayed at the centralized station 4 which is remotely monitored via the telephone exchange 9, and
The setting contents of the control panel 6 can be changed as needed. Therefore, effective maintenance management can be performed without dispatching an excellent coordinator every time an abnormality such as a trip occurs.

(Eighth Embodiment) FIG. 8 shows an operation monitoring system according to an eighth embodiment of the present invention, in which operation or data can be bidirectionally transmitted and received at three places: a site, an electric room, and a center. 1 is a configuration example in which a monitoring system is applied to a crane as a machine plant.

In this embodiment, the display device 11 is installed in the operation room of the crane 10. The display device 11
A data terminal device 2 having an HS transmission / reception function and capable of outputting voice is provided. The operator at the site carries a handy terminal 5 having a function of transmitting and receiving a PHS.

In the present embodiment, the display device 11 in the operation room of the crane 10 is provided with a data terminal device 2 having a PHS transmission / reception function and capable of outputting voice, so that an operator at the site can receive a PHS message.
Since the handy terminal 5 having an HS transmission / reception function is provided, voice information can be transmitted and received by PHS signals in the crane 10 operation room and the centralized station 4 remote from the site and the crane 10 can be operated. The information for preventing the operator from making mistakes can be visually displayed on the display device 11, so that the effective crane 10 can be displayed.
Operation and maintenance of the system can be performed.

(Ninth Embodiment) FIG. 9 shows an operation monitoring system according to a ninth embodiment of the present invention, in which data can be transmitted and received bidirectionally between a moving body and a central monitoring panel. Is a configuration example in which the present invention is applied to shipping management of a dump truck as a moving body.

In the present embodiment, the handy terminal 5 is mounted on the dump truck 12. Further, a display device 11 provided with a data terminal device 12 is provided. Furthermore,
A weight detector 13 for detecting the weight of the dump truck 12 is provided. When the weight is detected by the weight detector 13, the weight is displayed on a weight display 14 and the information is transmitted to the centralized station 4.

According to such a configuration, information can be bidirectionally transmitted and received between the wireless data station 3 which can transmit and receive the PHS signal and the centralized station 4 which is remotely monitored. Can be recognized. Then, the weight is detected by a weight detector 13 for detecting the weight of the dump truck 12, and the weight indicator 1 is detected.
4 and the information is displayed at the central station 4.
The shipping management of the dump truck 12 is facilitated without stopping the dump truck 12 each time.

In addition, since the display device 11 provided with the data terminal device 12 is provided to the driver of the dump truck 12, it is possible to accurately transmit information that changes every moment.

(Tenth Embodiment) FIG. 10 shows an operation monitoring system according to a tenth embodiment of the present invention. The operation monitoring system in the case where a monitored object is installed over a wide range is used to operate a plant. It is a configuration example applied to monitoring.

In this embodiment, a plurality of wireless data stations 3 capable of transmitting and receiving PHS signals are installed, and a PHS
A communication control device 15 is provided.

As a result, since the PHS signal cannot be transmitted over a long distance, it is disadvantageous to monitor the object 1 to be monitored which is installed over a considerably wide area. Since a plurality of wireless data stations 3 capable of transmitting and receiving are installed and the PHS communication control device 15 is provided, the operation of the monitored object 1 installed over a fairly wide range can be easily monitored.

[0042]

As described above in detail, according to the present invention, the data terminal equipment is provided with a P.P.M.
By transmitting the HS signal, the data terminal determines that a predetermined condition is satisfied, and transmits a warning signal only at this time, and remotely monitors the data terminal via a wireless data station capable of transmitting and receiving the PHS signal. A station operation monitoring system that can alert and display stations, eliminates the need for constant remote monitoring, and accurately grasps the operation status of the monitored object without impairing responsiveness Can be provided.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a first embodiment of a plant operation monitoring system according to the present invention.

FIG. 2 is a diagram showing a configuration of a second embodiment of the plant operation monitoring system according to the present invention.

FIG. 3 is a diagram showing a configuration of a third embodiment of the plant operation monitoring system according to the present invention.

FIG. 4 is a diagram showing a configuration of a fourth embodiment of the plant operation monitoring system according to the present invention.

FIG. 5 is a diagram showing a configuration of a fifth embodiment of the plant operation monitoring system according to the present invention.

FIG. 6 is a diagram showing a configuration of a sixth embodiment of the plant operation monitoring system according to the present invention.

FIG. 7 is a diagram showing the configuration of a seventh embodiment of the plant operation monitoring system according to the present invention.

FIG. 8 is a diagram showing a configuration of an eighth embodiment of the plant operation monitoring system according to the present invention.

FIG. 9 is a diagram showing a configuration of a ninth embodiment of the plant operation monitoring system according to the present invention.

FIG. 10 is a diagram showing a configuration of a tenth embodiment of a plant operation monitoring system according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Monitored object 2 ... Data terminal equipment 3 ... Wireless station 4 ... Centralized station 5 ... Handy terminal 6 ... Control panel 7 ... Personal computer 8
... Public line, 9 ... Phone switch, 10 ... Crane, 11 ...
Display device, 12: dump truck, 13: weight detector,
14: weight indicator, 15: PHS communication controller

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Makoto Ito 1-1-1 Shibaura, Minato-ku, Tokyo F-term in the head office of Toshiba Corporation 2F073 AA11 AA19 AA32 AA33 AB01 BB01 BC02 CC01 CC20 DD02 5C087 AA02 BB12 BB46 BB64 BB74 DD01 DD21 EE05 EE07 EE15 FF23 5H223 AA01 BB02 BB04 BB08 DD07 DD09 EE06

Claims (11)

[Claims] 1. A data terminal for transmitting and receiving a PHS signal, constantly detecting an operating state of a monitored object in a plant, and transmitting the detected signal by PHS, and transmitting and receiving a PHS signal from the data terminal. A central station that remotely monitors the monitored object by the PHS signal via the wireless station, wherein the data terminal transmits a PHS signal related to the monitored object under predetermined conditions. An operation monitoring system for a plant, comprising: 2. The operation of a plant according to claim 1, wherein said data terminal includes means for transmitting a PHS signal indicating an alarm only when said monitored object is in an abnormal state. Monitoring system. 3. The data terminal device further comprises means for transmitting a PHS signal indicating a detection signal of the operating state of the monitored object when it is desired to grasp the operating state of the monitored object at a desired time. The plant operation monitoring system according to claim 1, wherein 4. A PHS handy terminal which is brought by an operator and which bidirectionally exchanges voice between the plant side and the centralized station side. 3. The plant operation monitoring system according to 3. 5. The operation monitoring of a plant according to claim 1, wherein the data terminal device is housed in a control panel for controlling the plant and connected to a personal computer. system. 6. The apparatus according to claim 1, wherein said centralized station comprises means for accumulating information on an operation state of a monitored object of said plant, and means for displaying information of said means. An operation monitoring system for a plant according to any one of the preceding claims. 7. The centralized station according to claim 1, further comprising means connected to a control panel for controlling said plant and for transmitting and receiving information to and from said control panel. An operation monitoring system for a plant according to any one of the preceding claims. 8. The plant operation monitoring system according to claim 4, wherein said PHS handy terminal includes means for connecting to a public line. 9. The plant according to claim 1, further comprising a PHS communication controller for installing a plurality of said wireless data stations over a wide area and controlling said wireless data stations. Operation monitoring system. 10. An operating room of a machine plant for detecting an operation state of a monitored object in the machine plant,
A data terminal and a display device having means for transmitting and receiving the detection signal by PHS; a PHS handy terminal brought by an operator; a wireless station for transmitting and receiving PHS signals from the data terminal and the PHS handy terminal; A centralized station for remotely monitoring the monitored object by the PHS signal via a station. 11. A mobile body equipped with a PHS handy terminal, a data terminal having means for transmitting and receiving a PHS, a display device provided with the data terminal, a weight detecting device detecting a weight of the mobile body, A wireless station for transmitting and receiving PHS signals from the data terminal and the PHS handy terminal;
A mobile station operation monitoring system, comprising: a centralized station that remotely monitors by an HS signal and receives a signal from the weight detection device.