JPH07200048A - Plant monitoring equipment - Google Patents

Abstract

(57) [Summary] [Purpose] It enables remote monitoring of a plant at any place in the plant. [Configuration] An electronic computer 10 that collects data of each monitoring unit that requires plant operation monitoring, and a transmitter 11 that outputs the data collected by the electronic computer 10 to a transmission line 12.
And the data read out from the memory 16 selected by the data selecting means 19 for receiving the transmitted data via the transmission line 12 and storing it in the memory 16 and selecting the stored predetermined data. It is intended to be displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant monitoring device for monitoring the operating condition of a plant.

[0002]

2. Description of the Related Art FIG. 5 shows, for example, JP-A-63-20681.
It is a block diagram which shows the conventional plant monitoring apparatus shown by Unexamined-Japanese-Patent No. 8 and 1a-1n is a sensor which detects data, such as opening and closing of the valve of each monitoring part which requires plant operation monitoring, 2 is a plant computer, 3 Is a CR that displays the plant monitoring screen
A display device such as T, 4 is a handheld console device equipped with a keyboard (not shown) for selecting a plurality of the above-mentioned monitor screens, and 5 is an optical signal reception conversion device that receives a command from the handheld console device 4. .

Next, the operation will be described. The data for the plant operator to monitor the plant is the sensor 1
It is detected at a to 1n and is constantly input to the plant computer 1. The plant computer 1 edits it and generates a plurality of monitor screen signals. On the other hand, when a plant operator presses a predetermined key on the keyboard of the handheld console 4, an optical signal corresponding to the key is pressed.
Is output from. This optical signal is received by the optical signal reception conversion device 5 and input to the plant computer 1, a monitor screen signal corresponding to the input optical signal is transmitted from the plant computer 1 to the display device 3, and the selected monitor screen is displayed. It is displayed on the display device 3.

[0004]

Since the conventional plant monitoring device is constructed as described above, the operator can monitor the monitoring screen from a distance from the display device 3, but the display device is installed. There was a problem that the state of the plant could not be known outside the room in which it was present, and appropriate measures could not be taken immediately when the plant was abnormal.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a plant monitoring device which enables an operator to know the state of the plant regardless of where the plant is located. To do.

[0006]

A plant monitoring apparatus according to the present invention transmits data of each monitoring unit that requires plant operation monitoring to a transmission line, receives the transmitted data via the transmission line, and then determines a predetermined value. The data of is selected and displayed on the screen.

[0007]

The plant monitoring apparatus according to the present invention receives data of each monitoring unit of the plant from the transmission line at any place of the plant and displays it on the screen.

[0008]

【Example】

Example 1. 1 is a block diagram showing a configuration of a plant monitoring apparatus according to Embodiment 1 of the present invention. In FIG.
The same reference numerals as those in FIG. 5 indicate corresponding parts, and thus the description thereof will be omitted. 6 is a process input / output interface for converting analog data of each monitoring unit of the plant detected by the sensors 1a to 1n into digital data, and 7 is data for reading data of each monitoring unit of the plant converted by the process input / output interface 6. Reading unit, 8 is memory, 9 is memory 8
A data processing unit that reads data such as flow rate from the data stored in the data processing unit and performs data processing such as averaging processing and integration processing.
0 is a plant computer constituted by the above 6-9, 11 is a transmitter that reads out the data stored in the memory 8 and modulates and transmits the data and the processed data processed by the data processing unit 9, and 12 is a coaxial A transmission line composed of a cable or an optical fiber and arranged in the plant, 13 is connected to the transmission line 12, and a plurality of adapters are arranged in the vicinity of the process monitoring unit, and 14 is from the transmitter 11. Adapter 1
The modulated wave transmitted to the transmission line 12 via the adapter 1
A receiver for receiving data via 3 and demodulating and extracting data, 15
Is a data reading unit for reading the data taken out by the receiver 14, 16 is a memory, 17 is data read from the memory 16 corresponding to a selection signal of a keyboard 18 which is a data selection means, and is graphicized, and is a display made of liquid crystal or the like. The graphic processing unit displayed on the unit 19 is the above-mentioned 14
19 is a hand-held remote monitoring device. A mouse or a touch panel may be used instead of the keyboard.

Next, the operation will be described. Sensor 1a-
The analog data of each monitoring unit of the plant detected in 1n is converted into digital data by the process input / output interface 6. The digital data converted by the process input / output interface 6 is periodically read by the data reading unit 7 and stored in the memory 8. Memory 8
Process data read from the data processing unit 9 by the data processing unit 9 and processed by the averaging process, the integrating process, etc.
The data read from is modulated in the transmitter 21, and the modulated wave is sent to the transmission line 12 via the adapter 13. Then, when the plant operator connects the remote monitoring device 20 to the adapter 13 provided in the vicinity of the monitoring unit of the plant to be monitored among the plurality of adapters 13, the above-mentioned modulated wave is received by the receiver 14. Is input to and demodulated in the receiver 14 to extract data. The fetched data is read by the data reading unit 15 and stored in the memory 16. Next, when the plant operator presses a key on the keyboard 18 for selecting the data of the monitoring unit of the plant, the selection signal is input to the graphic processing unit 17. And
The data of the monitoring unit corresponding to the selection signal is the memory 1
6 is read by the graphic processing unit 17 and converted into a graphic by the graphic processing unit 17 and displayed on the display unit 19. When the display screen shows an abnormality of the plant, it is confirmed by the actual plant in the vicinity, and by pressing a predetermined key on the keyboard 18, the monitoring unit related to the monitoring unit is also activated as described above. The data is graphically displayed on the display unit 19.
Therefore, on the spot, the cause of the abnormality is confirmed, and appropriate measures can be immediately taken.

Embodiment 2. In the first embodiment, the transmission line 12 formed of the coaxial cable or the optical fiber is shown, but the present invention is not limited to this.
A telephone line may be used as 2, and the same effect as that of the above embodiment is obtained.

Embodiment 3. 2 is a block diagram showing the configuration of a plant monitoring apparatus according to a third embodiment of the present invention. The difference from FIG. 1 in FIG. 2 is that the data processed by the data processing unit 9 and the memory 8 by the wireless transmitter 21 are used.
The data read from the above is modulated by the wireless transmitter 21 and transmitted from the antenna 22 to the wireless transmission path, and the remote monitoring device 20 is configured by using the wireless receiver 23 having the antenna 24 instead of the receiver 14, The point that the transmitted modulated wave is received by the radio receiver 24 via the antenna 24 and demodulated to take out the data, and other operations are the same as those in the above-mentioned embodiment, and therefore the description thereof is omitted. .

Embodiment 4. 3 is a block diagram showing the configuration of a plant monitoring apparatus according to Embodiment 4 of the present invention. In FIG. 3, the same reference numerals as those in FIG. Reference numeral 25 denotes a plurality of terminal computers connected to the transmission line 12 and arranged near a process monitoring unit, and as shown in FIG. 4, a receiver 26, a data reading unit 27, a data processing unit 28, and And a memory 29. Reference numeral 30 is a remote monitoring device including a data reading unit 15, a memory 16, a graphic processing unit 17, a keyboard 18, and a display unit 19.

Next, the operation will be described. Sensor 1a-
The data of each monitoring unit of the plant detected in 1n is processed by the plant computer 10 as in the first embodiment, and the transmitter 21
And is transmitted to the transmission line 12 via the adapter 13. The modulated wave sent to the transmission line 12 is input to the receiver 26 of the terminal computer 25, demodulated in the receiver 26, and the data of the monitoring unit is taken out. The fetched data is read by the data reading unit 27, accumulated in the data processing unit 28, edited into time series data, and stored in the memory 29. And
The remote monitoring device 30 is operated by the plant operator from among the plurality of terminal computers 25 to the terminal computer 25 disposed near the monitoring unit of the plant to be monitored.
Is connected, the data reading unit 15 of the remote monitoring device 30 is connected.
Therefore, the data edited in time series is read from the memory 29 of the terminal computer 25 and stored in the memory 16. Next, when the plant operator presses a key on the keyboard 18 for selecting the data of the monitoring unit of the plant, the selection signal is input to the graphic processing unit 17. Then, the time-series edited data of the monitoring unit corresponding to the selection signal is read from the memory 16 by the graphic processing unit 17, converted into a graphic form, and displayed on the display unit 19. When the display screen shows an abnormality of the plant, it is confirmed by the actual plant in the vicinity, and by pressing a predetermined key on the keyboard 18, the monitoring unit related to the monitoring unit is also activated as described above. The data edited in chronological order is graphically displayed on the display unit 19.

[0014]

As described above, according to the present invention, the data of each monitoring unit that requires plant operation monitoring is transmitted to the transmission line, and the transmitted data is received via the transmission line and the predetermined data is transmitted. Since the data is selectively read and displayed on the screen, the data of the specified monitoring unit can be viewed almost anywhere in the plant with almost no time delay, and the plant operator can operate the plant safely and efficiently. There is an effect such as.

Further, the data of the monitoring unit is edited in time series,
By arranging multiple terminal computers that output to the remote monitoring device connected by the plant operator in the transmission path, time series data of the monitoring unit can be obtained at each predetermined place of the plant, and the safety by the plant operator can be obtained. This has the effect of enabling more efficient plant operation.

[Brief description of drawings]

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

FIG. 2 is a block diagram showing a configuration of a plant monitoring apparatus according to a third embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a plant monitoring system according to Example 4 of the present invention.

FIG. 4 is a block diagram showing the configuration of the terminal computer shown in FIG.

FIG. 5 is a block diagram showing a configuration of a conventional plant monitoring device.

[Explanation of symbols]

 1a to 1n Sensor 6 Process input / output interface 7 Data reading unit 8 Memory 9 Data processing unit 10 Plan and computer 11 Transmitter 12 Transmission line 13 Adapter 14 Receiver 15 Data reading unit 16 Memory 17 Graphic processing unit 18 Keyboard 19 Display unit 20 Remote monitoring device

Claims (5)

[Claims] 1. An electronic computer that collects data of each monitoring unit that requires plant operation monitoring, a transmitter that outputs the data collected by the electronic computer to a transmission path, and the above-mentioned transmission via the transmission path. A remote monitoring device for receiving data, storing it in a memory, and displaying on the screen the data selected by the data selecting means for selecting the stored predetermined data and read from the memory. Plant monitoring equipment. 2. An electronic computer that collects data of each monitoring unit that requires operation monitoring of a plant, a transmitter that outputs the data collected by the electronic computer to a transmission path, and a plurality of locations provided on the transmission path. A plurality of adapters, and a remote controller that displays the data read from the memory selected by the data selection means for inputting the data via the adapter and storing the data in the memory and selecting the stored predetermined data. A plant monitoring device comprising: a monitoring device. 3. The plant monitoring device according to claim 2, wherein an adapter is provided near each monitoring unit. 4. An electronic computer that collects data of each monitoring unit that requires plant operation monitoring, a wireless transmitter that outputs the data collected by the electronic computer, and a data that is output from the wireless transmitter. And a remote monitoring device for storing the data in the memory and displaying on the screen the data selected by the data selecting means for selecting the stored predetermined data and read from the memory. 5. An electronic computer that collects data of each monitoring unit that requires operation monitoring of a plant, a transmitter that outputs the data collected by the electronic computer to a transmission line, and a plurality of places provided in the transmission line. A plurality of terminal computers that input the above-mentioned data through the transmission line, edit it into time-series data and store it in the memory, and read out the time-series data stored in the memory of the terminal computer and read out from the memory. A plant monitoring device, comprising: a remote monitoring device for selecting time series data by a data selecting means and displaying the screen.