JPH08221115A - Facility state display device - Google Patents

Abstract

PURPOSE: To sensuously recognize changes in the stationary state of facilities and to easily monitor the facility state at a glance by displaying the stationary state of the facilities with visually well-balanced graphics, etc. CONSTITUTION: To monitor the facilities on a monitor signal registration device 1, a select signal 1a having selected a process value required for monitoring out of process values constituting the facilities is registered; and a process information recording device 2 inputs respective process values selected by the monitor signal registration device 1 and respective pieces of attached information 1b and a display style conversion device 3 converts the display style of the respective process values into a radar chart, etc., and displays then according to a display signal selection indication 11 in the inputted process information. A normalization processor 4 makes respective process values into homogeneous elements as stationary values with a normalization indication signal 12 from an operator and a display device 5 displays the respective process values normalized by the normalization processor 4 in the same style with the display style conversion device 3 with normalized signals 13 of respective points.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an equipment status display device for monitoring the process status of plant equipment.

[0002]

2. Description of the Related Art Monitoring the condition of plant equipment in the field of instrumentation requires individual monitoring of a plurality of process values constituting the equipment and comprehensive monitoring including correlation.

Conventionally, as a display device for simultaneously monitoring the states of these plural process values, a trend has been set.
I have used a display device.

The trend display device can monitor trends of a plurality of process values within a certain time in parallel by collecting several process values at a constant cycle and drawing them on a curve.

[0005]

As described above, the equipment monitoring by the conventional trend display device is effective in that the trend of each process value can be confirmed by the movement of the curve (graph), but the equipment condition is steady. It is not optimal for overall monitoring of how the state is compared to the state.

That is, the conventional trend display device is only for monitoring the trend of each process value, and each value cannot be evaluated in the same dimension as an index of the equipment state. Where is the current value in the range (class) for each process value,
In order to monitor the entire equipment by the conventional monitoring method of recognizing the state by comparing each steady state value, the burden on the operator (operator) must be increased.

The present invention has been made in view of overcoming the above problems, and normalizes each process value in the same dimension with the steady state of the equipment as a base, so that the deviation from the steady state can be sensed. It is an object of the present invention to provide a facility status display device that enables recognition.

[0008]

An equipment status display device of the present invention stores a supervisory signal registration device for selecting and registering a process location of equipment to be monitored, and a process location and the status of the process location as process information. A process information storage device, a display form conversion device for converting the process information into the same display form, a normalization processing device for dimensioning and normalizing the process information at the time of conversion by the display form conversion device as a steady value, And a display device for displaying the process normalized value obtained by the normalization processing device on a radar diagram.

[0009]

In the equipment status display device of the present invention, the process location of the equipment to be monitored is selected and registered, the process location and the status of the process location are stored as process information, and the process information is converted into the same display form. However, the process information at the time of conversion by the display form conversion device is dimensioned as a steady value and subjected to normalization processing, and the process normalization value obtained by the normalization processing device is displayed on the radar diagram.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the equipment status display device of the present invention will be described below. In FIG. 1, a monitoring signal registration device 1 is a device for selecting and registering a process location (value) of equipment to be monitored. The selection signal 1a of the registered point is output from the supervisory signal registration device 1, and the process information 1b such as the process value at the process point n and each associated range is output by the selection signal 1a. The process information storage device 2 stores the process location and the state of the process location as process information 1b. The display form conversion device 3 is connected to the process information storage device 2 and converts the process information 1b output from the process information storage device 2 into the same display form by the display signal selection display (mode selection) 11. The normalization processing device 4 is connected to the display form conversion device 3, and the process information 1b at the time of conversion by the display form conversion device 3
Is dimensionalized as a steady value based on the normalization instruction signal (steady state designation) 12 and is normalized. The display device 5 is connected to the normalization processing device 4, and displays the process normalization value obtained by the normalization processing device 4 on the radar diagram by the normalized signal 13 at each point.

That is, in FIG. 1, the supervisory signal registration device 1
Is a selection signal 1 that selects a process value required for monitoring from the process values that make up a certain facility when monitoring it.
a is registered, the process information storage device 2 takes in each process value selected by the supervisory signal registration device 1 and each accompanying information 1b, and the display form conversion device 3 gives a display signal selection instruction 11 to the displayed signal selection instruction 11. Based on this, each process value is displayed by converting the display form like a radar chart, and the normalization processing device 4 uses the normalization instruction signal 12 from the operator to equalize the process values at that time as steady values. Then, the display device 5 displays each process value normalized by the normalization processing device 4 in the same display form as the display form conversion device 3 by the normalized signal 13 at each point.
Therefore, the supervisory signal registration device 1 selects, from the process values constituting the equipment to be monitored, those necessary for equipment monitoring based on the operation know-how and registers them in advance. Information (rate of change, operation output, etc.) that can evaluate the state is fetched and stored in the storage device 2, and information (range, alarm set value, etc.) associated with each process value is also stored in the storage device.

In addition, the operator gives an instruction to select which information is used as an index in the information for state evaluation, and the display form conversion device 3 standardizes the display form of the selected information for each process value. To display.

Now, suppose that the supervisory signal registration device 1 registers 6 pieces of process information and displays the selected information as the current value PV.
Assuming that the display form converted by the display form conversion device 3 is a radar chart, a display image after the conversion process by the display form conversion device 3 is shown as an image 31 in FIG. Also, 6
The current value of the point is displayed on each of the 6 axes, and the outer end of the axis is set to RH,
The center of the radar chart is set to RL, and when the operator determines that the equipment is in a steady state, a normalization instruction signal is issued, whereby the normalization processing device 4 normalizes the display of each point on the radar chart at that time. An image 32 of the steady state after the normalization processing is shown in an image 32 of FIG.

Next, FIG. 2 shows a flow chart when the present value is processed proportionally as an example of the normalization processing. After starting from the start circuit 21 and receiving a normalization instruction by the determination circuit 22, arithmetic processing is performed so that the PV value (steady value) at that time corresponds to 50% on each axis. As a result, the steady state of the equipment is displayed as a regular polygon.

The normalization operation is carried out by the decision circuit 23 at the steady value PV '.
Switch according to the ratio to the range span. This is because the RH / RL position is defined by the normalized display axis, and the ratio of the steady value PV ′ to the range span is 50%.
If the following is true, the outer end of the display axis is set to RH, and the arithmetic processing circuit 2
The display positions of PV and RL after normalization are determined by 4.
On the other hand, if the ratio is 50% or more, the center of the radar chart is set to RL and the arithmetic processing circuit 25 normalizes P.
Determine the display position of V and RH.

The normalized value is displayed by the display processing circuit 26 in FIG.
Is displayed on the display device 5. As another embodiment, the display form conversion apparatus 3 divides the display form into a pie chart by the number of registered points, defines a normalized steady state of each process value as an intermediate color, fills each area, and changes to the process value. If there is a warm color / state depending on the normalization value
It can be used as a circuit that distributes to a cold color and changes the color of the area within the circle.

[0017]

According to the present invention, since the steady state of the equipment can be displayed in a visually balanced figure,
When the equipment deviates from the steady state, the equilibrium is visually lost, and it is possible to intuitively recognize the change in the status, which makes it easy to monitor the equipment status at a glance and reduce the load on the operator. It can be greatly reduced.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an equipment state display device showing an embodiment of the present invention.

FIG. 2 is an explanatory view showing the operation of FIG.

FIG. 3 is an explanatory diagram showing display images before and after a normalization process.

[Explanation of symbols]

 1 Monitoring Signal Registration Device 2 Process Information Storage Device 3 Display Form Conversion Device 4 Normalization Processing Device 5 Display Device

Claims (1)

[Claims] 1. A monitoring signal registration device for selecting and registering a process location of equipment to be monitored, a process information storage device for storing the process location and the state of the process location as process information, and the process information are the same. The display form conversion device for converting to the display form, the normalization processing device for performing the normalization process by dimensioning the process information at the time of conversion by the display form conversion device as a steady value, and the normalization processing device An equipment status display device comprising: a display device for displaying a process normalized value on a radar diagram.