JPH0120783B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a simulation device, and particularly to a simulation device for educating and training plant operators.

In this type of simulation equipment, switch signals for starting and stopping operating equipment such as pumps and compressors, as well as temperature, pressure,
The system consists of inputting control signals such as flow rate controllers into a simulation model, performing simulation, and outputting the results to each display device.

By the way, in conventional simulation equipment, the on-off signal of the switch for starting and stopping the equipment was directly input into the simulation model equipment, so regardless of the state change of the on-off signal, the change A compatible model had to be simulated, which placed a heavy load on the simulation computer and required a high-performance computer. In addition, in this conventional simulation device, it was not possible to turn on and off the switch from the simulation model device, so for example, based on a pump trouble command from the trainer to the simulation model device, the pump could not be turned on or off. Although the simulation performed a stop operation, the corresponding switch could not be turned off, and the trainee lacked a sense of realism.

The present invention was made in view of the current situation, and
SUMMARY OF THE INVENTION An object of the present invention is to provide a simulation device that reduces the load on a computer and can operate switches for starting and stopping equipment from a simulation model device.

That is, the present invention provides a switch that sets the start and stop of equipment, and a simulation that performs a plant simulation based on the on-off signal of the switch and blinks a lamp indicating the start and stop of the equipment. In a simulation device consisting of a simulation model device, a first relay is provided in series with the switch, and a second relay is provided in parallel with the first relay. is output to a simulation model device, and the lamp is made to blink by operating the second relay.

Preferred embodiments of the present invention will be described below based on the drawings.

Figure 1 is a conceptual diagram of the simulation device.
indicates an instrumentation panel, and this instrumentation panel 1 includes controllers for controlling temperature, pressure, flow rate, etc. at each control point of the actual plant, and instructions for displaying and recording these measured quantities. Various controllers, indicators, recorders, switches, etc. corresponding to meters, recorders, and operating equipment such as switches for starting and stopping pumps, compressors, etc., and indicator lamps that display the status of starting and stopping; Display lamps etc. are arranged. Moreover, this instrumentation panel 1 corresponds to the so-called instrument panel in the control room provided for monitoring the operation of actual plants, and also to switches for starting and stopping operating equipment in the field. This also includes panels of compatible switches.

Reference numeral 2 denotes a simulation model device, which is composed of a computer, an auxiliary storage device, and the like. This simulation model device performs simulation based on control signals from controllers and switches placed on the instrumentation panel 1, and sends signals in the same state as when the actual plant is operating to the instrumentation panel 1. A simulation model that outputs to the indicator, recorder display lamp, and other display parts of the trainer command device 3 is incorporated.

Reference numeral 3 indicates a trainer command device, which gives commands to the simulation model device 2 to start and stop the simulation, as well as various troubles such as failure of a specified pump, blockage of piping, misfire of the heating furnace, etc. It consists of something that emits signals and displays the results of the simulation, and preferably a display device with a keyboard is used.

In particular, the present invention provides a signal for controlling a switch for setting the start and stop of equipment disposed on the instrumentation panel 1 of a simulation device having such a configuration, when the switch changes its on-off operation. is input into the simulation model device 2, and is incorporated into a relay circuit together with a lamp so as to blink an indicator lamp corresponding to the switch on the instrumentation panel.
A preferred example of this relay circuit is shown in FIG.

In the figure, SW1 is a start switch on the instrumentation panel 1 corresponding to the start switch of the equipment,
SW2 indicates a stop switch on the instrumentation panel 1 that corresponds to the stop switch of the equipment. These start switch SW1 and stop switch SW2
are configured in series with the first relay RY1 and in parallel with each other, and are connected to the stop switch.
A contact SW3 is connected to the SW2 side, which is turned off when the second relay RY2 is not energized. Further, the first relay RY1 is provided with a contact SW4 that turns on and off depending on its energization and de-energization, and this signal is output to the simulation model device 2.

Further, a second relay RY2 is provided in parallel with the first relay RY1, and this second relay RY2
A lock switch SW7, which is an output terminal of a process I/O and has a function of being turned on and off by a signal from the simulation model device 2, is connected in series with the control switch SW7.

Furthermore, the first and second relays RY1 and RY mentioned above
In parallel with 2, the lamp LA1 on the instrumentation panel 1 corresponding to the lamp indicating start or stop of the equipment is also
In series with this lamp, there is a contact SW that turns on and off depending on whether the second relay RY2 is energized or not energized.
5 is connected. Figure 2 is an example where two indicator lamps are installed, and the second lamp LA2 and the contact
SW6 is provided in parallel with the lamp LA2 and contact SW5. Of course, if there is only one indicator lamp, the latter is not necessary; if two or more indicator lamps are required, it can be done by adding lamps and contacts in parallel as described above.

The operating mode of the simulation device of the present invention configured as described above will be explained below.

Control signals such as controllers and switches transmitted from the instrumentation panel 1 are sent to the simulation model device 2.
The results of the simulation using the simulation model are output from the simulation model device 2 and displayed on the indicator, recorder, etc. on the instrumentation panel 1.

On the other hand, when the instructor issues a trouble setting command from the trainer command device 3 to the simulation model device 2, the simulation model performs a simulation according to the trouble, and the result is The information is displayed from the simulation model device 2 on the indicator and recorder on the instrumentation panel 1. The trainees look at the displays on the instrument panel 1 and change the settings of controllers, switches, etc. according to their own judgment, and try to resolve the problem. Provide training throughout this process.

By the way, in the course of this training, when the start switch SW1 on the instrumentation panel is pressed in order to try to start a particular device, RY1 is energized, and as a result, contact SW4 is turned on.

At this time, in the simulation model device 2,
A signal for ON operation is input. Based on this signal,
In the simulation model, a logical judgment is made as to whether or not the device in question can be started, for example, if it is out of order or under repair, and if it is possible to start, the lock switch SW7 is turned on. This energizes the second relay RY2,
Contact SW3 turns on. Therefore, even if you release the start switch SW1, the device will remain in the starting state.
Further, even if the start switch SW1 is pressed again by mistake, no signal is output to the simulation model device 2. Moreover, since the excitation of the second relay RY2 turns on the contacts SW5 and SW6, respectively, the indicator lamps LA1 and LA2 light up to indicate activation.

Next, turn the stop switch 2 to stop the device.
When you press , the first relay RY1 becomes de-energized and
This signal that turns off the contact SW4 is input to the simulation model device 2, and a logical judgment is made as to whether or not the corresponding equipment can be stopped, and when it can be stopped, the lock switch SW7 is turned off.

As a result, the second relay RY2 becomes a non-energized state, and as a result, the contact SW3 turns off, and even if you stop pressing the stop switch SW2, the stopped state is maintained, and the contacts SW5 and SW6 are turned off.
Since the display lamps LA1 and LA2 are also turned off, the display lamps LA1 and LA2 are turned off.

Further, during training, if it is desired to stop the equipment in case of trouble with the equipment, a command signal is given from the trainer command device 3 to the simulation model device 2. As a result, lock switch SW7 is turned off, second relay RY2 is de-energized, contacts SW3, SW5, and SW6 are turned off, and the device is brought to a halt state.

Furthermore, in the present invention, the start switch SW1 is activated when the device is in a starting state, and conversely, the stop switch SW2 is activated when the device is in a stopped state.
Even if you press , no signal is output to the simulation model device, and the atmosphere of the actual plant can be maintained without performing simulations based on erroneous operations.

The present invention as described above incorporates a switch for starting and stopping equipment and its indicator lamp into a predetermined relay circuit, and a signal is input to a simulation model device only when the state of an on-off signal changes. Therefore, the load on the computer for simulation can be reduced, and the switches and lamps can be turned on and off based on instruction signals from the instructor from the simulation model device, giving the trainee a sense of realism. , which has a special effect.

[Brief explanation of drawings]

FIG. 1 is a conceptual diagram of a simulation device, and FIG. 2 is a circuit diagram showing one embodiment of a relay circuit of the present invention. In Fig. 1, 1 is an instrumentation panel;
2 is a simulation model device, and 3 is a command device for a trainer.

Claims (1)

[Claims] 1 A switch that sets the start and stop of equipment, and a simulation model device that simulates the plant based on the on-off signal of the switch and flashes a lamp that indicates the start and stop of the equipment. In the simulation device, a first relay is provided in series with the switch, and a second relay is provided in parallel with the first relay, and the on-off operation signal is simulated by the operation of the first relay. A simulation device characterized in that the lamp is made to blink by outputting it to a model device and activating the second relay based on an output signal from the simulation model device.