JPH0520973Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention can be applied to electric quantities such as voltage and current, temperature and
The present invention relates to a display device that displays actual measured values of state quantities such as pressure, mechanical quantities such as rotational speed, and other physical quantities, and the degree of magnitude of the actual measured values relative to artificially set values.

[Conventional technology]

When displaying a limit value that is the boundary between a forbidden band and an allowable band of a physical quantity, a device that digitally displays an upper limit set value and a lower limit set value has conventionally been used.

Further, devices for indicating that the measured value deviates from the limit value are described in Japanese Patent Application Laid-open No. 160065/1982 and Japanese Patent Application Laid-open No. 79908/79909/1983. The display device described in Japanese Patent Application Laid-Open No. 61-160065 is
A one-dimensional bit display section in which a plurality of light emitting elements are arranged in a line is provided, and light is emitted from one end of the one-dimensional bit display section by causing the number of light emitting elements to emit light according to the magnitude of an input signal based on an actual measurement value. A bar graph is displayed by a band, and the length of the bar graph is reflected in the magnitude of the input signal, and
The brightness of the bar graph is changed when the input signal falls within a certain deviation from the limit value. On the other hand, the display device described in Japanese Patent Application Laid-open Nos. 56-79908 and 79909 uses a one-dimensional bit display section consisting of a plurality of light emitting elements to display the magnitude of an input signal based on an actual measurement value by the length of a bar graph. When the magnitude of the input signal falls within a certain deviation from a preset limit value, the light emitting element of the one-dimensional bit display section is flashed.

[Problem that the invention attempts to solve]

However, each of the above-mentioned conventional devices has the following problems.

In other words, with conventional devices that digitally display upper and lower limit set values, it is difficult for humans to intuitively determine the degree of deviation between the measured value and the digitally displayed limit value, especially when the actual measured value of a physical quantity has large fluctuations. Since it is difficult to judge, there was a problem that it was difficult to set limit values such as upper and lower limits.

Also, JP-A-61-160065, JP-A-56-
In the conventional devices described in Publications No. 79908 and 79909, the actual measured value is only displayed in analog form by the length of the bar graph, so it is difficult to recognize the actual measured value digitally. If the actual measured value is outside a certain deviation from the limit values such as the upper limit set value and lower limit set value, there will be no change in the brightness of the light-emitting bar graph or flashing of the light-emitting element, so such conditions will not occur. There was a problem that the deviation between the actual measured value and the limit value could not be recognized.

This idea solves the above problems by displaying actual measured values both digitally and analogously, displaying limit values digitally, and also displaying locations and displays where actual measured values are displayed in analog. By associating the color with the digital display location of the actual measured value, the limit value display location, and their display colors, it becomes easier to intuitively judge the degree of deviation between the actual measurement value and the limit value, and it is also possible to easily determine the degree of deviation between the actual measurement value and the limit value. It is an object of the present invention to provide a display device that can easily recognize deviations even in such a large size.

[Means for solving problems]

The measures taken to achieve the above purpose are that an actual value display section that digitally displays the actual measured value of the physical quantity is provided in the center of the upper section of the display window divided into three vertical sections, and a lower limit is set in the middle section. A value display section and an upper setting value display section are provided on the left and right sides of the central section, and a one-dimensional bit display section formed by arranging a plurality of light emitting elements in a horizontal row is provided in the lower section. The display section is divided into a central section, one end section located below the lower limit set value display section, and the other end section located below the upper limit set value display section, and the emitted light color of the one end section is the same as above. The display color of the lower limit setting value display section becomes the same color, the emission color of the other end side becomes the same color as the display color of the upper limit setting value display section, and the emission color of the center section becomes the same color of the one end side section and the other end side section. The display color is configured to be different from the emitted light color, and only one of the light emitting elements is configured to emit light in accordance with the actual measurement value, and the display color of the actual measurement value display section is set according to the lower limit setting. The display color is the same as that of the value display section or the upper limit setting value display section.

[Effect]

The display device configured in this manner operates as follows.

The actual measured value, lower limit set value, and upper limit set value of the physical quantity are displayed digitally in the actual measured value display section, lower limit set value display section, and upper limit set value display section, respectively, whereas the light emission of the one-dimensional bit display section It is possible to recognize the actual measured value from the position in an analog manner. Also,
You can intuitively determine whether the light emitting position of the one-dimensional bit display is close to the lower limit set value display or the upper and lower set value display, and what color the one-dimensional bit display is emitting light. From these, the deviation of the actual measurement value from the lower limit setting value or the upper limit setting value can be visually recognized.

〔Example〕

FIG. 1 is a front view showing a display window 1 of a display device which is an embodiment of this invention. As shown in the figure,
The display window 1 has an upper section U, an interrupted section C, and a lower section L.
It is divided into three sections. An actual measured value display section 2 is provided in the center of the upper section U, and a lower limit setting value display section 3 and an upper limit setting value display section 4 are provided on the left and right sides of the center section in the middle section C. A one-dimensional bit display section 5 is provided in the section L.
The actual measured value display section 2, lower limit set value display section 3, and upper limit set value display section 4 all digitally display the actual measured value, lower limit value, and upper limit value using 3-digit numbers. The one-dimensional bit display section 5 is formed by arranging a plurality of light emitting elements in a horizontal row, and displays actual measured values in an analog manner depending on the position of the light emitting element emitting light. The one-dimensional bit display section 5 in the illustrated example has a total of 12 light emitting elements 6a, 6b, 6.
c, . . . 6l are used, and the larger the measured value is, the more light emitting elements arranged on the right side of the figure emit light, and the other light emitting elements do not emit light. Also,
The one-dimensional bit display section 5 has four light emitting elements 6a to 6l arranged in the center of the display window 1, and four light emitting elements 6e to 6h arranged at the bottom of the lower limit setting value display section 3.
It is divided into three groups: a to d, and four groups 6i to 1 arranged at the lower part of the upper limit setting value display section 4. The one-digit display portion of the actual measurement value display section 2 is
As illustrated in the figure, a number from 0 to 9 is selected by emitting light from a predetermined one or all of the seven linear light emitting elements 7a, 7b, 7c,...7g arranged in a figure 8 shape. A light emitting element 7h corresponding to a decimal point is provided in a display area of a predetermined digit. The same applies to the one-digit display portion of the lower limit set value display section 3 and the upper set value display section 4.

On the other hand, the display color on the lower limit setting value display section 3 and the display color on the upper limit setting value display section 4 are configured to be different from each other. Further, the emitted light color of the one-dimensional bit display section 5 is related to the display color of the upper limit setting value display section 3 and the upper limit setting value display section 4. That is, the light emitting element 6a of the one-dimensional bit display section 5
The light emitting colors of the four light emitting elements 6a to 6d located at the lower part of the lower limit setting value display section 3 among ~l are the same color as the display color of the lower limit setting value display section 3, and the lower position of the upper limit setting value display section 4 The emitted light color of the four light emitting elements 6i to 6l is the same as the display color of the upper limit setting value display section 4, and the emitted light color of the four light emitting elements 6e to h in the central part is configured to be a different color. has been done. Further, the display color of the actual measured value display section 2 is configured to be the same color as the display color of the lower limit set value display section 3 or the upper limit set value display section 4. Note that LEDs can be used as the light emitting elements 6a-l, 7a-h. Therefore, for example, if the display color of the lower limit set value display section 3 is green, the display color of the upper limit set value display section 4 is red, which is the danger warning color, and the display color of the actual measurement display section 2 is red. As for the light emitting elements 6a to 6l of the one-dimensional bit display section 5, it is necessary to set the light emitting color of the light emitting elements 6a to 6d to green and the light emitting color of the light emitting elements 6i to 6l to red, as shown in FIG. Therefore, it is necessary to set the light emission color of the light emitting elements 6e to 6h to a different color, for example, yellow.

Figure 4 shows the actual measured value display section 2 and the lower limit set value display section 3.
The circuit configuration of the drive system of the lower limit set value display section 4 and the one-dimensional bit display section 5 is shown. As is clear from this, in this circuit, an input signal a corresponding to an actual measurement value, an input signal b corresponding to a lower limit value, and an input signal c corresponding to an upper limit value are sent to amplifiers 81, 82, 8, respectively.
3 and converted into a digital signal by an A/D converter 86, and the three types of digital signals output from the A/D converter 86 are calculated by a comparator 84 and input to an LED driving device 85. It's getting old.

The display colors of the actual measurement value display section 2, the lower limit setting value display section 3, and the upper limit setting value display section 4, as well as the emitting color of the one-dimensional bit display section 5, are set as described above, and the actual measurement value is set as the lower limit. When the set value is reached, the light emitting element 6a at one end of the one-dimensional bit display section 5 emits light, and when the actual measured value reaches the upper limit setting value, the light emitting element 6l at the other end of the one-dimensional bit display section 5 emits light.
In a display device adjusted to emit light,
As shown in Fig. 5, after the measured value A of the physical quantity, that is, the actual measured value A rises as time T passes, it repeatedly fluctuates between the lower limit setting value Amax and the upper limit setting value Amin. Explain the action.

The actual measured value A is the lower limit setting Amax and the upper limit setting Amin
When the state is fluctuating between , it is displayed digitally on the actual measurement display section 2, and at the same time, one of the light emitting elements 6a to 6l of the one-dimensional bit display section 5 emits light and is displayed in analog form. Ru. i.e. time
Assuming that the measured value A at Ta is close to the upper limit set value Amax as shown in FIG. 5, the light emitting element 6j in the one-dimensional bit display section 5 emits red light, for example. Therefore, the operator visually recognizes from the color of the light emitted from the one-dimensional bit display section 5 that the actual measured value A is close to the upper limit setting Amax, and furthermore, the light emitting position of the one-dimensional bit display section 5 is located at the upper limit setting value display section 4.
Because it visually recognizes that it is close to
The operator can intuitively judge the deviation of the actual measured value A from the upper limit setting value Amax due to their synergistic effect. When the actual value A at time Tb is close to the lower limit set value Amin as shown in the figure, the light emitting element 6b in the one-dimensional bit display section 5 emits green light, for example. Therefore, the operator can visually recognize the emitted light color and the emitted light position of the one-dimensional bit display section 5, and intuitively judge the deviation of the measured value A from the lower limit set value Amin. Further, when the actual value A at time Tc is a value that does not deviate toward the lower limit set value Amin or the upper limit set value Amax as shown in the figure, the one-dimensional bit display section 5 displays, for example, the light emitting element 6g. emits yellow light. Therefore, the operator visually recognizes that the emitted light color of the one-dimensional bit display section 5 is different from the display color of the lower limit set value display section 3 and the upper limit set value display section 4, and also that the emitted light position is different from the display color of the lower limit set value display section 3. Since it is visually recognized that it is the middle part of the upper limit setting value display section 4, the actual measured value A is not biased toward the lower limit setting value Amin side or the upper limit setting value Amax side due to their synergistic effect. You can judge things intuitively.

In this embodiment, a case has been described in which the display color of the actual measured value display section 2 is red, but it may also be green. In addition, the actual measured value display section 2, the lower limit set value display section 3
The display on the upper limit setting value display section 4 is not limited to three digits, but may be a higher or lower number of digits.

[Effect of idea]

As described above, according to the display device of this invention,
The actual measured value of the physical quantity is not only digitally displayed on the actual measured value display section in the upper section of the display window, but also displayed in analog form on the one-dimensional bit display section in the lower section.
The operator can recognize the actual measured values both digitally and analogously. In addition, it is possible to visually recognize whether the actual measured value is close to the lower limit set value or the upper limit set value from the light emitting position on the one-dimensional bit display, and the color of the light emitted on the one-dimensional bit display is different from the lower limit set value display. This combination with the ability to visually recognize whether the displayed color is the same as that of the upper limit set value display or the upper limit set value display section allows the operator to determine whether the actual measured value is close to the lower limit set value or the upper limit set value. In addition to being able to intuitively recognize the deviations from these set values, it also becomes possible to easily and quickly set the lower and upper limits even when the fluctuation range of the actual measured values is large.

[Brief explanation of drawings]

Fig. 1 is a front view showing a display window of a display device which is an embodiment of this invention, Fig. 2 is an explanatory diagram illustrating the arrangement of light emitting elements in a digital display area, and Fig. 3 is an illustration of a temporary source bit display section. FIG. 4 is a circuit configuration diagram showing the drive system of each display section, and FIG. 5 is a graph substituted for a drawing illustrating the fluctuation state of actual measurement values. 1... Display window, 2... Actual value display section, 3... Lower limit set value display section, 4... Upper limit set value display section, 5...
...One-dimensional bit display section, 7a-h...Light emitting element,
U...Upper section, C...Middle section, L...Lower section.

Claims (1)

[Scope of utility model registration request] The display window is divided into three vertical sections, and the upper section is equipped with an actual measurement value display section that digitally displays the actual measured value of the physical quantity in the center. A one-dimensional bit display section is provided on both the left and right sides, and the one-dimensional bit display section is formed by arranging a plurality of light-emitting elements in a horizontal line in the lower section. It is divided into one end part located at the bottom and the other end part located below the upper limit set value display section, and the emitted light color of the one end part is the same color as the display color of the lower limit set value display section, and the other end part is the same color as the lower limit set value display section. The color of the light emitted from the end portion is the same as the display color of the upper limit setting value display section, and the color of light emitted from the center portion is different from the color of light emitted from the end portion and the other end portion. , only one of the light emitting elements is configured to emit light in accordance with the actual measured value, and the display color of the actual measured value display section is the same color as the display color of the lower limit setting value display section or the upper limit setting value display section. A display device characterized in that it is configured to: