JP2021076551A - Monitoring device and method for monitoring - Google Patents

Abstract

To provide a monitoring device and a method for monitoring that allow a user to get to know a sign or a tendency of a situation that is about to be an alarm state.SOLUTION: The monitoring device according to an embodiment includes an acquisition unit, a color density operation unit, and a display control unit. The acquisition unit acquires a first measurement signal value of a first monitor target. The color density operation unit operates the density of color between the maximum color density and the minimum color density of a specific color on the basis of a first measurement signal value so that the color density will change according to change in the first measurement signal value. The display control unit causes the display unit to display a first display region having a first display manner showing information on the first measurement signal value and a first image region with a color density corresponding to the first measurement signal value.SELECTED DRAWING: Figure 1

Description

Embodiments of the present invention relate to a monitoring device and a monitoring method.

Generally, on the monitoring screen, each indicator corresponding to each measurement signal is displayed in a list. Whether or not there is a danger or emergency response required for the monitoring target corresponding to each indicator is separately monitored by using an alarm signal of an alarm setter separately provided in the analog signal circuit. In this case, the alarm function based on the upper and lower limit set values attached to the monitoring function is used.

However, with these alarm functions, it is difficult to grasp whether or not the state in which the measurement signal reaches the upper and lower limit set values is a state in which emergency response is required. In addition, since the urgent value is different for each measurement signal, it is necessary to grasp the signs and trends before reaching the upper and lower limit alarm set values of each measurement signal only by displaying the measurement signal indicators side by side. Is difficult.

Japanese Unexamined Patent Publication No. 2011-24869

An object to be solved by the present invention is to provide a monitoring device and a monitoring method capable of grasping a sign or a tendency before reaching an alarm state.

According to the present embodiment, the monitoring device includes an acquisition unit, a color density calculation unit, and a display control unit. The acquisition unit acquires the first measurement signal value of the first monitoring target. The color density calculation unit calculates the color density between the maximum color density and the minimum color density of a predetermined color based on the first measurement signal value so that the color density fluctuates according to the fluctuation of the first measurement signal value. .. The display control unit causes the display unit to display a first display area having a first display form showing information on the first measurement signal value and a first image area having a color density corresponding to the first measurement signal value.

The block diagram which shows the structure of the monitoring apparatus by 1st Embodiment. The figure which shows the display image example based on the measurement signal by 1st Embodiment. The figure which shows the display image example based on two measurement signals by 1st Embodiment. The figure which shows the example of the display image based on each measurement signal from the measurement sensor by 1st Embodiment. The figure which shows the example of the time-series change of the display image by 1st Embodiment. The flowchart which shows an example of the control method of the monitoring apparatus by 1st Embodiment. The block diagram which shows the structure of the monitoring apparatus by 2nd Embodiment. The figure which shows the display image example based on the measurement signal and standard deviation by 2nd Embodiment.

Hereinafter, the monitoring device and the monitoring method according to the embodiment of the present invention will be described in detail with reference to the drawings. The embodiments shown below are examples of the embodiments of the present invention, and the present invention is not construed as being limited to these embodiments. Further, in the drawings referred to in the present embodiment, the same parts or parts having similar functions are designated by the same reference numerals or similar reference numerals, and the repeated description thereof may be omitted. In addition, the dimensional ratio of the drawing may differ from the actual ratio for convenience of explanation, or a part of the configuration may be omitted from the drawing.

(First Embodiment)
FIG. 1 is a block diagram showing a configuration of the monitoring device 1 according to the first embodiment. The monitoring device 1 includes a processing device 2, an input unit 3, and a display unit 4.

The processing device 2 is a device capable of displaying information on each measurement signal from the measurement sensors S1 to Sn at a color density corresponding to each measurement signal value, and includes an acquisition unit 10, a setting unit 20, a storage unit 30, and the storage unit 30. It has a color density calculation unit 40 and a display control unit 50. The processing device 2 includes, for example, a CPU (Central Processing Unit), and constitutes each processing unit by executing a program stored in the storage unit 30.

The storage unit 30 includes a monitoring setting storage unit 32, a position setting storage unit (arranged position setting storage unit) 34, and an image storage unit 36. In FIG. 1, the measurement sensors S1 to Sn and the signal line SL are further illustrated.

The input unit (monitoring setting unit) 3 is realized by, for example, a mouse, a keyboard, a trackball, a switch, a button, a joystick, or the like. The input unit 3 receives various input operations from the operator and outputs the received input information to the setting unit 20. For example, the input unit 3 sets the setting value of each measurement signal corresponding to the maximum color density value, the setting value of each measurement signal corresponding to the minimum color density value, and the setting of the display position of the display area corresponding to each measurement signal. Accepts the setting of the measurement signal name of each measurement signal.

The display unit 4 is composed of, for example, a liquid crystal display, a CRT (Cathode Ray Tube) display, or the like. The display unit 4 displays various types of information. Under the control of the display control unit 50, for example, the images of FIGS. 2 to 5 described later are displayed. The display unit 4 uses an RGB color model that expresses colors by, for example, a combination of brightness of red, green, and blue.

In the acquisition unit 10, each measurement sensor S1 to Sn acquires a measurement signal. The measurement sensors S1 to Sn measure the physical quantity to be monitored. For example, the measurement sensors S1 to Sn according to the present embodiment are measurement sensors that measure the rise in the water level of each pump well in each engine pumping station of the sewerage system, for example. In this case, the measurement sensors S1 to Sn output, for example, a measurement signal obtained by measuring the water level in meters. In this embodiment, the water level of the pump well in the engine pumping station will be described as an example, but the present invention is not limited to this. For example, the measurement target of the measurement sensors S1 to Sn may be fuel, engine output, speed, altitude, atmospheric pressure, or the like in an aircraft. Further, the measurement target of the measurement sensors S1 to Sn may be an irrelevant physical quantity as long as it is a physical quantity, for example.

Based on the input from the input unit 3, the setting unit 20 monitors the storage unit 30 for the set value of each measurement signal corresponding to the maximum color density value and the set value of each measurement signal corresponding to the minimum color density value. It is set in the setting storage unit 32. Further, the setting unit 20 sets the display position of the display area corresponding to each measurement signal and the measurement signal name in the position setting storage unit 34. In this case, it is not necessary to set all of the measurement signals in the position setting storage unit 34, and the display position of the measurement signal to be displayed in the display unit 4 may be set in the position setting storage unit 34.

The storage unit 30 is realized by, for example, a RAM (Random Access Memory), a semiconductor memory element such as a flash memory, a hard disk, an optical disk, or the like. As described above, the monitoring setting storage unit 32 stores the maximum density setting value max of each measurement signal corresponding to the maximum color density value and the minimum density setting value min of each measurement signal corresponding to the minimum color density value. .. The position setting storage unit 34 stores the display position of the display area corresponding to each measurement signal. The image storage unit 36 stores the image information generated by the display control unit 50, which will be described later, in chronological order.

The color density calculation unit 40 is between the maximum color density and the minimum color density of a predetermined color based on each measurement signal value so that the color density fluctuates according to the fluctuation of each measurement signal value of the measurement sensors S1 to Sn. Calculate the color density. However, the same value is used for the maximum color density and the minimum color density regardless of the measurement sensors S1 to Sn. Thereby, even if the measurement target of the measurement sensors S1 to Sn is, for example, an irrelevant physical quantity, the change range of the color density can be set to the same range.

Here, a processing example of the color density calculation unit 40 will be described. The color density calculation unit 40 calculates the color density using, for example, an RGB color model. In the RGB color model, various colors are expressed by combining the brightness of red, green, and blue. For example, the display constituting the display unit 3 uses information up to 24 bits per pixel. As a result, it is possible to give 256 different densities (brightness) and brightness for each hue by allocating 8 bits to red, green, and blue, respectively.

The color density calculation unit 40 sets the measurement signal value and the color density so that the maximum density setting value max of the measurement signal value becomes the maximum color density value and the minimum density setting value min of the measurement signal value becomes the minimum color density value. Performs an operation to normalize the relationship. For example, the maximum concentration set value max of the measured signal value corresponds to the alarm issuance level. On the contrary, the minimum concentration setting value min of the measurement signal value corresponds to, for example, a level where the risk level is 0.

For example, when the maximum density setting value max is set to 4 meters, the minimum density setting value min is set to 2 meters, and the RGB values (255, 255-X, 255-X) are set from 0 to 255, the color density calculation unit. 40 performs an operation of X = 255 ÷ (max-min) × (x-min). x indicates a measurement signal value. As a result, when the measured signal value x is 2 meters of the minimum density setting value, the color density calculation unit 40 becomes X = 255 ÷ (4-2) × (2-2) = 0, and the RGB value (255). , 255, 255). As a result, when the measured signal value x is 2 meters, the color density becomes pure white.

On the other hand, when the measured signal value x is 4 meters of the maximum density setting value, X = 255 ÷ (4-2) × (4-2) = 255, and the calculation is performed as RGB values (255, 0, 0). To do. As a result, when the measured signal value x is 4 meters, the maximum density is red.

When the measured signal value x is smaller than 4 meters and larger than 2 meters, a value larger than 0 and smaller than 255 is normalized and assigned to X. For example, when the measured signal value x is 3 meters, X = 255 ÷ (4-2) × (3-2) ≈128, and the calculation is performed as an RGB value (255, 127, 127). As a result, when the measured signal value x is 3 meters, the maximum density is red and the white neutral color density is pink. In this way, the color density calculation unit 40 sets the measurement signal value between the minimum density setting value and the maximum density setting value in a one-to-one correspondence with the color density. This makes it possible to make the degree of danger of the monitored object corresponding to the measurement signal proportional to the color density of red.

If the value of X exceeds 255 as a result of the above calculation, X is set to 255, if it is less than 0, it is set to 0, and the numbers after the decimal point are rounded off to make an integer. It should be noted that the error countermeasure processing group is performed before being used for coloring as an RGB value. Further, in the above example, since the water level is at the pumping station, it is dangerous when the water level is high, but it is also feasible when the value is low or when the value other than the median is dangerous. carry out.

For example, when the maximum density setting value max is set to 2 meters and the minimum density setting value min is set to 4 meters, the RGB values are set to (255, X, X), and X = 255 ÷ (min-max) × (x-max). ) Is performed. x indicates a measurement signal value. In this case, 2 meters is the alarm issuance level and is calculated as an RGB value (255, 0, 0). As a result, when the measured signal value x is 2 meters, the maximum density is red. On the other hand, 4 meters is a level of zero risk, and is calculated as an RGB value (255, 255, 255). As a result, when the measured signal value x is 4 meters, it becomes pure white.

The display control unit 50 generates image information used for display of the display unit 4 by using the calculation result of the color density calculation unit 40 and the information stored in the storage unit 30.
2 to 5 are diagrams showing an example of image information generated by the display control unit 50. The image information generated by the display control unit 50 will be described with reference to these figures.

FIG. 2 is a diagram showing an example of a display image based on the measurement signal. As shown in FIG. 2, the display control unit 50 includes a signal name area 402 for displaying the measurement signal name, display forms 404 and 406 for displaying information on the measurement signal value, and an image area 408 in the display area 400. Generate image information.

The size of the display area 400 and the position in the image are set based on the information set in the position setting storage unit 34. In the signal name area 402, a signal name set in the position setting storage unit 34 corresponding to the measurement signal, for example, "intake well water level" is displayed.

The display control unit 50 generates image information indicating the measurement signal value in time series as the display form 404, and displays the image information on the display unit 4. Further, the display control unit 50 generates rectangular image information that fluctuates according to the magnitude of the measured signal value in time series as the display form 406, and displays it on the display unit 4. The display form 406 corresponds to, for example, an indicator. With these display forms 404 and 406, the observer can grasp the magnitude of the measurement signal. The display forms 404 and 406 may be either one or the other. Alternatively, the image information indicating the measurement signal value may be shown in another display form.

The display control unit 50 generates an image of the color density RGB (255, 255-X, 255-X) value corresponding to the measurement signal value x calculated by the color density calculation unit 40, and displays the display unit 4 as an image area 408. To display. As a result, the degree of danger can be indicated by the color depth, and the visibility of the degree of danger is improved. Further, the image area 408 of the color density is defined as, for example, 25% or more of the display area 400. Alternatively, the size of the image area 408 is configured to be larger than that of the display form 406. By setting the color density image area 408 to a predetermined range or more in this way, the recognition time of the degree of danger is further shortened.

The display control unit 50 displays the image area 408 side by side with the display forms 404 and 406. As a result, the information of the display forms 404 and 406 and the information of the image area 408 can be visually recognized at the same time. In the present embodiment, the state in which the image area 408 and the display forms 404 and 406 are arranged includes a state in which the image area 408 surrounds the display forms 404 and 406 and a state in which the display forms 404 and 406 surround the image area 408. Means that.

FIG. 3 is a diagram showing an example of a display image based on two measurement signals. As shown in FIG. 3, the display control unit 50 includes a first signal name area 402a for displaying the first measurement signal name and a first display form 404a for displaying information on the measurement signal value in the first display area 400a. The 406a and the image information of the first image area 408a are generated. Similarly, the display control unit 50 has, in the second display area 400b, a second signal name area 402b for displaying the second measurement signal name, and second display forms 404b and 406b for displaying information regarding the measurement signal value. 2 Generates image information of the image area 408b. This makes it possible to indicate the degree of risk with the same color density. For example, if each measured signal value is completely safe, it is displayed as pure white, and as the degree of danger is higher, it is displayed as deep red. In this way, the degree of risk and the density of red are displayed in proportion to each other (the signal with a darker red color is regarded as the signal with the highest risk). Therefore, by comparing the color depths, it is possible to easily compare the degree of risk between the monitoring target corresponding to the first display area 400a and the monitoring target corresponding to the second display area 400b.

FIG. 4 is a diagram showing an example of a display image 500 based on each measurement signal from the measurement sensors S1 to Sn. As shown in FIG. 4, the display control unit 50 can arrange the display areas 400 corresponding to each measurement signal and display them as a display image 500. In this way, by indicating the degree of danger of each measurement signal with the same color density, even when monitoring a plurality of signals, the priority of necessary measures can be grasped by the color density. As a result, the priority order of coping is clarified, the coping speed is improved, and it is possible to provide an opportunity for calm coping that is accurate, quick, and has time to spare. In this way, since the degree of danger can be recognized in a unified manner based on the color density, it is possible to determine the priority order for instant response without hesitation.

If a fuel low alarm occurs, then the engine output will decrease, then the speed will decrease, and then the altitude will decrease, and a chain of alarms can be assumed, but these alarms occur in a chain at almost the same time. It will be a thing. When this situation is reached, the most important issue for aircraft operators is to deal with the decrease in altitude, but it is necessary to understand what the root cause is and finally recover the altitude. However, speed reduction, engine output reduction, and other measured values cannot be ignored. However, if alarms are issued at the same time in a chain, it can be easily predicted that it may be difficult to deal with them immediately and in an appropriate priority order.

On the other hand, according to the present embodiment, even when each measurement signal from the measurement sensors S1 to Sn is fuel, engine output, altitude, etc. related to the aircraft, or a physical quantity related to the operation of the plant, FIG. As shown in the above, it is possible to arrange the display areas 400 corresponding to each measurement signal and display them as the display image 500.

Since the degree of danger corresponding to each measured signal value and the color density can be shown in proportion, it is possible to instantly grasp the general tendency of the operating state of an aircraft or a plant and take proactive measures before issuing an alarm. In addition, it is possible to instantly grasp each measurement signal even if there is a difference in the properties of the measurement signals or signals that are not related to each other, and it is possible to judge the danger and safety.

FIG. 5 is a diagram showing an example of time-series changes in the display image 500. The display control unit 50 generates time-series data of the display image 500 and displays it on the display unit 4. The time interval of the time series data can be arbitrarily set by the setting unit 20. For example, if 2 hours is set, the current image, the image 2 hours ago, the image 4 hours ago, and the image 6 hours ago are displayed. In this case, the elapsed time can be easily grasped by the arrow 502. Further, for example, if it is set to 1 day, the current image, the image 1 day ago, the image 2 days ago, and the image 3 days ago are displayed. In this way, since the degree of danger of each measurement signal is indicated by the color density of the same color, the time-series changes of each measurement signal can be easily compared. It should be noted that the time-series images do not have to be displayed at the same time, and may be displayed in order.

As described above, it was decided to display in the image area 408 (FIG. 4) in proportion to the degree of risk corresponding to each measurement signal value and the color density. As a result, it becomes possible to simultaneously use a larger area in the display area 400 for displaying information indicating the degree of danger for each measurement signal. Therefore, by working on the color vision, which is a sensitive human sense, it is possible to maintain high visibility and greatly reduce the possibility of oversight. In this way, it is possible to prompt the determination of the priority order of reliable countermeasures for instantaneous countermeasures for the countermeasure necessary items for the monitored target of each measurement signal.

In addition, it is possible to instantly grasp the general tendency of the measured signal value indicating the operating state in a normal plant or the like before the alarm issued by the threshold value provided for each measured signal value, for example, the failure signal is issued. Therefore, it becomes easy to take advance measures. Furthermore, since the degree of danger of each measurement signal is indicated by the color density of the same color, the tendency of the color density in the image region 408 (FIG. 4) regardless of the difference in the properties of the measurement signals and the degree of interrelationship. It becomes possible to grasp the danger and safety represented by the above at the same time and instantly.

FIG. 6 is a flowchart showing an example of a control method of the monitoring device 1. Here, taking the water level of the pump well in the engine pumping station as an example, control from the setting by the observer of the maximum concentration setting value and the minimum concentration setting value of each measurement signal value to the generation of the display image 500 (FIG. 4). An example will be described.

First, the observer analyzes past data and prepares the maximum concentration set value max and the minimum concentration set value min for each measurement signal value (step S100).
Next, the observer inputs the minimum concentration set value min corresponding to each measurement signal via the input unit 3 (step S102). Subsequently, the setting unit 20 sets the minimum concentration setting value min corresponding to each measurement signal in the storage unit 30 in response to the input of the input unit 3 (step S104).

Next, the observer inputs the maximum concentration set value max corresponding to each measurement signal via the input unit 3 (step S106). Subsequently, the setting unit 20 sets the maximum concentration set value max corresponding to each measurement signal in the storage unit 30 in response to the input of the input unit 3 (step S108).

Next, the acquisition unit 10 acquires each measurement signal from the measurement sensors S1 to Sn (step S110).
Next, the color density calculation unit 40 has the minimum density setting value min corresponding to each measurement signal set in the storage unit 30, the maximum density setting value max corresponding to each measurement signal, and each acquired by the acquisition unit 10. Using the measured signal value x, each color density RGB value (255, 255-X, 255-X) for each image area 408 (FIG. 4) is set according to the equation X = 255 ÷ (max-min) × (x-min). Calculate (step S112).

Next, the display control unit 50 changes each color density RGB value (255, 255-X, 255-X) for each image area 408 (FIG. 4) based on the calculation result of the color density calculation unit 40, and displays the display unit 50. It is displayed in 4 (step S114).
In this way, the minimum density setting value min and the maximum density setting value max corresponding to each measurement signal value x are set, and each color density RGB value (255, 255-X, 255-X) for each image area 408 (FIG. 4) is set. ) Is calculated according to the formula X = 255 ÷ (max-min) × (x-min). As a result, the maximum density and the minimum density of the color density of each measurement signal become the same value, and the degree of danger of each measurement signal can be indicated by the color density of the same color.

As described above, according to the present embodiment, the setting unit 20 sets the minimum density setting value min and the maximum density setting value max corresponding to each measurement signal value x, and each color in each image area 408 (FIG. 4). The density RGB values (255, 255-X, 255-X) are calculated according to the formula X = 255 ÷ (max-min) × (x-min). As a result, the maximum density and the minimum density of the color density of each measurement signal become the same value, and the risk level of each measurement signal can be uniformly indicated by the color density of the same color. Therefore, by working on the color vision, which is a sensitive human sense, it is possible to maintain high visibility and greatly reduce the possibility of oversight.

(Second Embodiment)
The monitoring device 1 according to the second embodiment is different from the monitoring device 1 according to the first embodiment in that it can further indicate the amount of time variation of each measurement signal. Hereinafter, the differences from the monitoring device 1 according to the first embodiment will be described.

FIG. 7 is a block diagram showing a configuration example of the monitoring device 1 according to the second embodiment. As shown in FIG. 7, the monitoring device 1 according to the second embodiment further includes a time fluctuation calculation unit 60.

The setting unit 20 sets the minimum standard deviation setting value smin and the maximum standard deviation setting value smax corresponding to the maximum standard deviation of each measurement signal in the monitoring setting storage unit 32 of the storage unit 30.

The time fluctuation calculation unit 60 calculates the amount of temporal fluctuation of each measurement signal. For example, the time variation calculation unit 60 calculates the standard deviation s of each measurement signal with respect to the time.

The color density calculation unit 40 sets the measured signal value and the standard so that the maximum standard deviation set value smax of the measured signal value becomes the maximum color density value and the minimum standard deviation set value smin of the measured signal value becomes the minimum color density value smin. Performs an operation to normalize the relationship with the deviation s. For example, when the maximum standard deviation setting value is 2 meters, the minimum density setting value is 1 meter, and the RGB values (255-X, 255, 255-X) are set from 0 to 255, the color density calculation unit 40 uses X. = 255 ÷ (smax-smin) × (s-smin). As a result, in the color density calculation unit 40, for example, when the standard deviation s is 1 meter of the minimum standard deviation set value, X = 255 ÷ (2-1) × (1-1) = 0, and the RGB value (RGB value (1-1)) It is calculated as 255, 255, 255). As a result, when the standard deviation s is 1 meter, the color density becomes pure white.

On the other hand, when the standard deviation s is, for example, 2 meters of the maximum standard deviation set value, X = 255 ÷ (2-1) × (2-1) = 255, and the RGB value (0, 255, 0) is set. Calculate. This results in the highest density of green when the standard deviation s is 2 meters.

FIG. 8 is a diagram showing an example of a display image based on the measurement signal and the standard deviation. As shown in FIG. 8, the display control unit 50 further generates image information of the variable display area 410 having color density RGB values (255-X, 255, 255-X) in the display area 400. As a result, as the fluctuation of the measurement signal with time increases, the color becomes dark green, so that the state of the fluctuation of the measurement signal with respect to time can be grasped. Moreover, since red and green are complementary colors, they can be easily identified.

As described above, according to the present embodiment, the setting unit 20 sets the minimum standard deviation set value smin and the maximum standard deviation set value smax corresponding to the standard deviation s of each measurement signal, and the variation display area 410 (FIG. 8) Each color density RGB value (255-X, 255, 255-X) for each is calculated according to the formula X = 255 ÷ (smax-smin) × (s-smin). As a result, the maximum density and the minimum density of the color density of each measurement signal become the same value, and the degree of variation of each measurement signal with respect to time can be uniformly indicated by the color density of the same color. Therefore, by working on the color vision, which is a sensitive human sense, it is possible to maintain high visibility and greatly reduce the possibility of oversight.

Although some embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and variations thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and the equivalent scope thereof.

1: Monitoring device, 4: Display unit, 10: Acquisition unit, 30: Storage unit, 40: Color density calculation unit, 50: Display control unit, 60: Time fluctuation calculation unit, 400a: First display area, 400b: First 2 display area, 404b, 406b: second display form, 408a: first image area, 408b: second image area, 410: variable display area.

Claims (9)

The acquisition unit that acquires the first measurement signal value of the first monitoring target,
A color density calculation unit that calculates a color density between the maximum color density and the minimum color density of a predetermined color based on the first measurement signal value so that the color density fluctuates according to the fluctuation of the first measurement signal value. When,
A display control unit that displays a first display area having a first display form showing information about the first measurement signal value and a first image area having the color density corresponding to the first measurement signal value on the display unit. When,
A monitoring device equipped with. The color density calculation unit performs the first measurement so that the first set value of the first measurement signal value becomes the maximum color density and the second set value of the first measurement signal value becomes the minimum color density. The monitoring device according to claim 1, wherein an operation for normalizing the relationship between the signal value and the color density is performed. The display unit uses an RGB color model that expresses colors by a combination of red, green, and blue brightness, and a predetermined minimum of at least one of the red, green, and blue brightness in the RGB color model. The monitoring device according to claim 2, wherein the value corresponds to the first set value and a predetermined maximum value corresponds to the second set value. The acquisition unit further acquires the second measurement signal value of the second monitoring target different from the first monitoring target.
The color density calculation unit performs the second measurement so that the third set value of the second measurement signal value becomes the maximum color density and the fourth set value of the second measurement signal value becomes the minimum color density. Performs an operation to normalize the relationship between the signal value and the color density.
The display control unit
The first display area and
A second display area showing information about the second measurement signal value and a second display area having a second image area having the color density corresponding to the second measurement signal value are further arranged side by side and displayed on the display unit. The monitoring device according to claim 2 or 3. A storage unit that stores at least a display image including the image of the first display area and the image of the second display area in a time series is further provided.
The monitoring device according to claim 4, wherein the display control unit displays the display image on the display unit in chronological order. The monitoring device according to claim 1, wherein the display area of the first image area is larger than the display area of the first display form. Further provided with a time fluctuation calculation unit for calculating a numerical value indicating the time fluctuation state of the first measurement signal value
The monitoring device according to claim 1, wherein the display control unit displays the first variation display area with a color density based on the numerical value. 4. The fourth aspect of the present invention further includes a setting unit for setting the first set value corresponding to the maximum color density, the second set value corresponding to the minimum color density, and the display position of the first display area. The monitoring device described in. The acquisition unit process for acquiring the first measurement signal value of the first monitoring target, and
A color density that calculates a color density between a predetermined maximum density and a minimum density of a predetermined color based on the first measurement signal value so that the color density fluctuates according to the fluctuation of the first measurement signal value. Calculation process and
A display for displaying the first display area for displaying the first display form showing information about the first measurement signal value and the first color image area having the color density corresponding to the first measurement signal value on the display unit. Control process and
A monitoring method that includes.

Images