JP2002152855A - Supervisory/control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem of a conventional supervisory/control system for a water purifying plant or the like employing an expensive computer that has caused a very bad capital investment efficiency because of the computer technology becoming obsolescence. SOLUTION: Sensor signals and state signals of each section of water purifying plants or the like are transmitted to a supervisory device from terminals via a network, the supervisory device generates a supervisory picture and transmits the supervisory picture to the terminals via the network, and supervisory function is provided to the terminals at a lease or rental cost on the basis of the cost dividing the sum of the cost of the supervisory device including the supervisory/control software programs for the terminals, the maintenance cost and the program upgrade cost by the number of transmission data of the terminals proportionally.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to the monitoring and monitoring of various facilities.
It relates to the improvement of the control method.

[0002]

2. Description of the Related Art Conventionally, monitoring devices for monitoring various types of equipment are:
The measured values and status signals of each part of the equipment are captured by various sensors, and the data is processed to display the operation status of the equipment and other operations, and to give instructions to operators for operations. Can be Such a monitoring device is generally installed in the premises of each facility.

[0003]

However, as the equipment scale increases, the monitoring device becomes very expensive. In addition, computer technology is rapidly developing, and even with the introduction of state-of-the-art equipment at a high cost,
It became obsolete in a year, and the efficiency of capital investment was very poor. These facilities also require maintenance personnel, but with the aging of maintenance personnel, maintenance of computer-based facilities such as monitoring devices is becoming more difficult. The present invention intends to maintain a state-of-the-art function of the monitoring device which is constantly evolving and upgraded, and to minimize the maintenance burden and supply the user at low cost. It is.

[0004]

According to the present invention, there is provided a data collection device for collecting sensor signals and status signals of equipment, and a sensor signal and a status signal collected by the data collection device. A communication control device for transmitting, a terminal device including a display device, receiving sensor signals and status signals from a plurality of sets of the terminal devices via a network, and displaying a status, a measured value, a form, and the like of each device on a display screen. In one monitoring device having a function, a communication function and a function of monitoring the plurality of terminal devices, in a monitoring / control method performed by the above devices, a sensor signal of each unit and a status signal are transmitted to the monitoring device via a network. The monitoring device generates a monitoring screen, and sends the monitoring screen to the plurality of terminal devices via a network. The lease or rental price based on the cost of the monitoring device including the terminal device monitoring / control software, the maintenance cost thereof, and the version upgrade cost, which is proportionally divided by the number of data transmitted from the plural sets of terminal devices. Provides the terminal with a monitoring function.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram for explaining functions of the present invention. In the figure, reference numerals 1 to 3 denote sensors for detecting states of devices in the facility, 4 denotes a data collection device, 5 denotes a display device, and 6 denotes a communication control device. These devices constitute the terminal device 10.
Reference numeral 7 denotes a monitoring device installed at an arbitrary place away from the terminal device. A plurality of terminal devices 10 of each facility are connected via a communication line 8. This monitoring device receives data of each part collected through the communication line 8 for each terminal device of each facility, processes it into information necessary for monitoring and control, and displays the information on the display device 5 of the terminal device through the communication line 8. Monitoring and control software is installed. The display device 5 is an inexpensive personal computer that has a communication function but does not have a special monitoring / control function. This monitoring device
It is considered that about 20 facilities can be monitored individually, and security management is performed for each. Each facility pays a lease or rental fee corresponding to the number of data to be sent, and obtains a monitoring screen. If you do this,
Since only one monitoring device needs to be installed for a plurality of facilities, the version can be easily upgraded. In this way, in each facility, the screen of the latest function is always displayed on the display, and functions as if a high-performance monitoring device is at hand. In this monitoring device, a computer is used for leasing or rental, and the leasing or rental fee is determined based on a score of a product of a preset number of terminal devices to be applied and an average number of data transmitted from each terminal device. . In other words, the lease or rental fee for the computer, including the anticipated version upgrade and maintenance costs for the monitoring and control software installed on the computer, is divided by this point, and this price is divided by the lease or rental data per point. Base price. The user using the monitoring function obtains the monitoring function by paying a lease or rental fee according to the number of transmitted data. If the processing of the same data takes an extremely long time, such as the generation of a special graphic screen, the price per point may be weighted.

As an application example of the present invention, a case will be described where a monitoring device is installed in a data center of a manufacturer and terminal devices are installed in ten water purification plant facilities. At each water purification plant, data such as analog data such as flow rate and pressure and digital data such as contact information are taken in via sensors 1 to 3 and converted into serial signals in the data collection device 4. The serial-converted data is sent via a communication control device 6 and a communication line 8 to a monitoring device 7 installed in a data center of the manufacturer. In this way,
Data from 10 water treatment plants is sent to the monitoring device. The monitoring device 7 generates a monitoring function individually for each of the ten water treatment plants, and has a function of individually displaying a screen for each water treatment plant in real time. Each of the water purification plants has a standard PC 5
Is provided, and a necessary monitoring screen is appropriately called up and used via the communication line 7.

[0007] In this way, in each water treatment plant, by sending raw data to a remote location, a high-performance monitoring device can be constructed with only a standard personal computer at hand, which is expensive. It is economical because no equipment needs to be introduced. By doing so, there is no restriction on the installation location of the monitoring device. Therefore, the monitoring device may be installed in a place where the land price is low, or a location convenient for the system providing side, for example, as in the above example. It may be installed in the manufacturer's data center. According to the present invention, the functions of the monitoring device, which are improved and upgraded every moment, always maintain the state-of-the-art functions, and minimize the burden for maintenance,
It can be supplied to users at low cost.

[0008]

Since the monitoring and control devices are installed in a centralized manner, the version-up process is easy and the state-of-the-art functions can always be maintained. 2. On the terminal device side, there is no need to install an expensive computer, and if only an inexpensive personal computer is used, a virtual monitoring and control device is configured there, so that equipment costs can be greatly reduced. 3. The installation area on the terminal device side can also be greatly reduced. 4. Since the central computer, which is a monitoring device, can be shared, facility costs for common parts such as a backup power supply and an air conditioner can be reduced. 5. Since the terminal device requires only a simple personal computer, it can be installed safely without maintenance personnel. 6. Personnel providing the system do not need to go to the terminal device installation position for maintenance of the monitoring and control device, and maintenance and inspection are facilitated. 7. One computer can handle many facilities, so large-scale energy savings can be realized. 8. It is easy to recycle when upgrading the computer.

[Brief description of the drawings]

FIG. 1 is a block diagram of a system to which the present invention is applied.

[Explanation of symbols]

 1, 2, 3 sensor 4 collection device 5 personal computer 6 communication control device 7 monitoring device 8 communication line 10 terminal device

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) H04M 11/00 301 H04M 11/00 301 F term (reference) 5H223 CC08 CC09 DD03 DD05 DD07 DD09 EE08 EE17 5K048 AA00 BA30 BA34 CA08 DA02 DC04 DC07 EA11 EB10 EB12 FB08 FC01 GB08 HA01 HA02 HA05 HA07 HA13 HA22 5K101 KK13 LL01 LL03 MM07 NN03 NN18 NN21 NN34 RR12 SS07 TT06 UU16

Claims (1)

[Claims] 1. A data collection device for collecting sensor signals and status signals of equipment, a communication control device for transmitting sensor signals and status signals collected by the data collection device, and a terminal device comprising a display device. It has a function of receiving sensor signals and status signals from a plurality of sets of terminal devices via a network, displaying the status of each device, a measured value, a form, etc. on a display screen, a communication function, and a function of monitoring the plurality of sets of terminal devices. In one monitoring device, a monitoring and control method performed by the above devices, a sensor signal of each unit and a status signal are transmitted to the monitoring device via a network,
A monitoring screen is generated by the monitoring device, and the monitoring screen is transmitted to the plurality of sets of terminal devices via a network, and a cost of the monitoring device including the plurality of sets of terminal device monitoring / control software, A monitoring function is provided on the terminal side by a lease or rental price based on a cost obtained by apportioning the total of the maintenance cost and the upgrade cost based on the number of data transmitted from the plurality of sets of terminal devices.・ Control method.