JPS58159108A - Graphic display with pilot lamp - Google Patents

Abstract

PURPOSE:To enable an operator to understand clearly the state of a system, by turning on successively plural pilot lamps arrayed on a mimic line in accordance with the path and the flowing direction of the fluid of a pipeline. CONSTITUTION:For instance, a signal is applied to a terminal 92 when the starting conditions are satisfied. Thus a base current flows to a TR77 via an AND circuit 79, and therefore the TR77 conducts to turn on light emitting diodes 751-75n all at once. When a signal is impressed to a terminal 91 after the operating conditions are satisfied, the base current is impressed to the circuit 79 via an NOT circuit 99. As a result, the TR77 is not conductive to turn off all light emitting diodes. Furthermore the diodes 751-75n glow since the signal impressed to the terminal 91 is impressed also to a decoder 83. Thus it is possible to control the lighting of the pilot lamps on a mimic line in accordance with the state of operation of the process control.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD OF THE INVENTION The present invention relates to improvements in graphic display devices used in control devices such as process control systems.

[Technical background of the invention and its problems] In process control systems, many graphic display devices are used to display the operating status of the equipment that makes up the system and the connection status of the power distribution that connects the equipment. has been done. This graphical display device is installed so that the system configuration can be displayed in a simulated manner, and the operating status of equipment, etc. can be shown using rungs, etc., so that the operator can grasp the status of the system at a glance. This graphic display device has been improved over the years to make it easier for operators to understand and to understand system functions as clearly as possible. Many improvements have been made. However, in recent years, as process control systems have become more sophisticated, their configurations have become more complex. The connections of the piping lines that connect the equipment are also complicated, and it is difficult to simply represent the system configuration in a simulated manner and simply display the operating status of the equipment on the simulated configuration diagram. It is very difficult to understand the direction of the flow. This tendency is particularly strong in complex large-scale process control systems such as radioactive waste treatment systems in nuclear power plants.

FIG. 1 shows an example of a conventional graphic display of such a process control system, in which 1 to 612 to 15 are equipment symbols respectively displayed on the display device, 1 being a three-way valve, 2. 12 represents a tank, 3.5.6, 13.15 a valve, and 4.14 a pump. These are interconnected via a simulated piping line 7. In addition, three-way valve 1, valve 3.5, and 13.15 each have an indicator light R (red).
and G (edge) are installed so that when the valve is open, the indicator light R lights up, and when the valve is closed, the indicator light G lights up. Similarly, the indicator light R for pumps 4 and 14
and G are set, and the indicator light R is configured to light up when the pump is operating, and the indicator light G lights up while the pump is stopped.

The liquid that has passed through the piping line 7 passes through the three-way valve 1 and is stored in the tank 2 or tank 12. When the tank 2 or tank 12 is filled with liquid, two indicator lights R provided on the three-way valve 1 light up, depending on which tank the liquid is flowing into.

After sampling, the liquid stored in tanks 2 and 12 is stirred through bomb f4 or pump 14 and valve 3 or valve 13. At this time, valve 5 or box 15 is closed, green indicator light G lights up, and valve 4 or pump 14 is turned on.
In the operating state, the red indicator light R lights up, and when the valve 3 or valve 13 is open, the red indicator light R lights up. When the liquid is sufficiently stirred, the liquid is transferred to the next container through valve 5 and cell 6 or valve 15 and cell 16. When liquid is transferred, the red indicator light K of the valves 5, 6 and the pump 4 or the valves 15, 16 and the pump 14 lights up. Of course, when the thrust is transferred while being stirred, the red indicator light R of valve 3 or valve 13 lights up at the same time.

As you can see from the above explanation, conventional graphic display devices [
Since only the operating state of the equipment is displayed on the graphic display device, it is necessary to understand the fluid flow path and fluid flow direction based on the operating state of the equipment. In addition, the conventional example used in this explanation is a very quantitative system, and although it is easy to understand, the actual system is extremely 4i complex, and it is difficult to understand the system simply by showing the operating status of the equipment on the graphic display device. It was difficult to grasp the situation.

[Purpose of the invention]

(5) An object of the present invention is to provide a display device which modifies the display contents of the conventional graphic display device as described above and allows the operator to clearly grasp the status of the system.

[Summary of the invention]

In order to achieve this object, the present invention provides a Danquick display device for a process control system, in which a plurality of indicator lights are arranged on a simulated line that simulates a piping line connecting equipment to equipment, and these indicator lights are The percentage sign is that the lights are turned on sequentially depending on the flow path of the fluid flowing through the piping line and the direction in which the fluid flows.

[Embodiments of the invention]

An embodiment of a graphic display device according to the present invention (tC) is shown in FIG.

In FIG. 2, everything other than the display device and the piping line 70 is the same as in FIG. The explanation will be omitted.

Figure 3 (a) and (b) show the replacement piping line 7 with display device.
0 is a detailed view and a side view of the vehicle. In the figure, 71
r is the base of the display device, 72 is a simulated line, and 73 is an indicator light such as a source diode. A dummy line 72 having kerfs (6) matching the kerfs is attached to the front surface of the base 71 which has a long and narrow kerf, and a plurality of indicator lights 73 are fitted into these kerfs. There is. and,
The lighting of this indicator light 73 indicates the flow path and flow direction of the fluid.

In the graphic display device shown in FIG.
We will explain the case of stirring a liquid that has accumulated in a container. In this case, the red indicator lights of the bon f4 and the valve 3 are lit, and the indicator lights of the simulated piping lines 70-1 to 70-4 with display devices are also lit. Furthermore, it is also possible to control the lighting method of the display device-equipped simulated piping lines 70-1 to 70-4 according to the operating state to provide a more detailed display. For example, in the case of stirring operation, when the stirring start conditions are met, all the indicator lights 73 of the display-equipped simulated piping fins 70-1 to 70-4 of the piping line related to the stirring operation are turned on all at once, and further stirring operation conditions are set. When this is established and stirring operation begins, a plurality of indicator lights 73 are turned on for each line in order according to the direction in which the fluid flows. In this way, by combining simultaneous lighting and sequential lighting, it is possible to make the graphic display even easier to understand. The above explanation was about installing indicator lights on the simulated line, but it is also possible to install them near the simulated line.

FIG. 4 shows an embodiment of the lighting circuit 80 for the indicator light 73 of the simulated piping line 70 with display device shown above. In the figure, 81 is an oscillator, 82 is a counter, 83
is a decoder. ) The decoder 83 sequentially lights up the light emitting diodes '751, 752, 753, . . . 75n at its output terminals 911, 912, 913, . Output a signal. Diode 761, 762, 763
...76n & Yohi transistor 77 is light emitting diode 7
51.752.753=75n is a drive circuit that lights up at a glance, and an AND circuit 79 is connected to the base of the transistor 77.
is connected. One input terminal of the AND circuit 79 is connected to a signal input terminal 92 indicating that the starting condition is met. The other terminal of the AND circuit 79 is connected to the terminal 91 via a NOT circuit 99. In addition, 741.742, 743-74
n is resistance.

Now, when the starting condition is satisfied and a signal indicating that the starting condition is satisfied is applied to the terminal 92, the voltage is applied directly to the base of the transistor 77 via the AND circuit 79, and the transistor 7'l
Ill conduction. When the transistor 77 becomes conductive, the light-emitting diodes 751.7521753...75n are turned on by this conductive transistor, the diode 761.762.76.
3...76n and resistance 741.742, 743-7
It is driven through 4n'i and lights up in one corner.

Next, when the operating condition is met and a signal indicating that the operating condition is met is applied to the terminal 91, this argument is applied to the AND circuit 79 via the NOT circuit 99, making the transistor 77 non-conductive. Therefore -C, all light emitting diodes are turned off. Unfortunately, the signal applied to terminal -t91 is decoder 83.
is also applied, and the decoder 83 outputs the output of the given 12 light emitting diodes 751.752.753=7 when this signal is applied.
5n are turned on in sequence.

FIG. 5 shows the output 86 of the oscillator 81 in FIG.
Output 911, 912, 913=l? It is a time chart showing 1n.

〔Effect of the invention〕

As described above, according to the present invention, the lighting of the indicator lights on the simulated lane is controlled according to the operating state H of the process control system, so that the state of the system can be clearly and easily grasped.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of a conventional graphic display device for a process control system, Fig. 2 is a block diagram of a graphic display device/υ showing an embodiment of the present invention, and Figs. 3(a) and +
b) is a detailed plan view and side view of the simulated piping line with display device shown in Fig. 2, Fig. 4 is a block diagram of the indicator light lighting circuit shown in Fig. 3, and Fig. 5 is a time diagram of the circuit shown in Fig. 4. It is a chart. 1...30,000 sho, 2,12...tank, 3,5,6゜1
3.15... Valve, 4.14... Bo/f, 70...
Simulated piping line with display device, 71...Base, 72...
Simulated line, 73... Indicator light, 77... Transistor, (10) 79... AND circuit, 8o... Lighting circuit, 81...
・Oscillator, 82...Counter, 83...Decoder,
91°92-...terminal, 741-74 n-resistance, 75
1~75n...Light emitting diode, 761~76rs・
··diode. (7317) Agent Patent attorney Kensuke Norichika (1 person) (11) Figure 4 Figure 5

Claims (1)

[Claims] (1) Provide multiple indicator lights on each simulated line that simulates piping lines that connect devices, and turn on the indicator lights in order according to the operating status of each operating mode of the Norose control system. A graphical display device with an indicator light, characterized in that the operating state of the Zorocess control system, the flow path of fluid flowing through the process control system, and the direction in which the fluid flows are displayed on the graphical display device. (2. In claim 1, if the state of the Zorose control system in each operation mode of the process control/stem or the start-up conditions before operation are satisfied, all indicator lights of the related simulated line are lit continuously. Then, once the operation starts, all the lights are turned off, and if the operating conditions are satisfied, the indicator lights of the related simulated lines are turned on in sequence to check the operating status of the Zorothes control system and the flow of fluid flowing through the Noroses control system. 1. A graphic display device with an indicator light, characterized in that the flow direction of a flow path and a fluid is displayed on the graphic display device.