KR960015074B1 - Fluid level display apparatus - Google Patents

Abstract

None.

Description

Liquid display device

1 is a block diagram of a device showing an embodiment of the present invention.

2 shows an embodiment of a panel of the device of the present invention.

3A and 3B show an embodiment of a display form in the apparatus of the present invention, respectively.

4 is a view showing another embodiment of the liquid level display mode.

* Explanation of symbols for main parts of the drawings

3: liquid level detection means 4: indicator

5: alarm T: tank

[Industrial use]

The present invention relates to a liquid level display device for displaying measurement data from a plurality of liquid level measuring means on the same screen.

[Prior art]

In gas stations equipped with a plurality of tanks, liquid level detection means are provided in the plurality of tanks in order to manage the liquid level of each tank, and the measurement signals from the liquid level detection means are directed to a common monitor device, such as a liquid crystal display of a monitor device. Displaying as a graphic on the display is performed. Such a display device is configured to display the tank figure by changing the ratio of the farming portion in proportion to the amount of tank liquid by judging by viewing the tank figure.

According to such a graphic display, the amount of liquid in the tank can be grasped at a glance, and thus there is an advantage in that the amount of liquid in the plurality of tanks can be easily managed.

[Problem to Solve]

However, since the liquid volume of a plurality of tanks is displayed on the same screen at the same time, the display pattern of each tank becomes smaller, and thus there is an inconvenience that the data that can be known is restricted for the tank that wants to know the process of liquid volume change.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object thereof is to provide a novel liquid level indicator which can automatically enlarge a liquid level display pattern of a tank that requires liquid level management.

[Means for solving the problem]

In order to solve such a problem, in the present invention, a liquid level display device which displays measurement data from a plurality of liquid level detection means as a figure on the same screen, wherein the liquid level operation means and liquid amount convert the signal from the liquid level detection means into a liquid amount. And a display control means for enlarging and displaying the liquid amount data of the tank to which the liquid amount is increased when an increase in the liquid amount is detected.

[Action]

The presence or absence of an increase in the liquid level is always detected, and when an increase in the liquid amount is detected, only one display of the tank in which the liquid amount is added is enlarged and displayed.

EXAMPLE

EMBODIMENT OF THE INVENTION Below, it demonstrates based on the Example which showed the detail of this invention.

FIG. 2 shows an embodiment of the present invention, wherein reference numeral 1 in the drawings is a liquid level display device characterized by the present invention, and liquid level detecting means 3 provided in the tank T through each cable 2. ) On the panel surface thereof, an indicator 4 such as a liquid crystal panel capable of graphically displaying the liquid level of each tank T, and an alarm 5 that outputs an alarm by voice when the liquid level of each tank T exceeds the upper limit. , The loading / unloading display means (6) indicating that fuel oil is being supplied from the tank lorry to the tank (T), the upper limit display means (7) indicating that the liquid level of the tank (T) has reached the upper limit, and detailed information on the specific tank. An enlarged display selection button 8 to enlarge the display on the display 4, a display panel 9 indicating the type of fuel oil contained in the tank T, a display panel 10 indicating the capacity of the tank, and a display. The switch 11 and 12 which turn on-off are arrange | positioned.

FIG. 1 shows an embodiment of the control device 20 for controlling the display panel described above, in which reference numeral 21 denotes a signal from the liquid level detecting means 3 attached to the plurality of tanks T later. Conversion means for scanning by the signal from the liquid quantity calculating means 22. Reference numeral 22 denotes a relationship between the liquid level (liter) according to the liquid level (millimeter) of each tank T by receiving measurement signals from the converting means 21 and the liquid level detecting means 3 in the liquid level calculating means. It is configured to calculate the liquid amount of the tank to be measured based on the data of the stored formula storage means 23, and output the calculated liquid amount data to the liquid amount data storage means 24.

Numeral 25 denotes display pattern storage means for storing image data for displaying the liquid amount by imitating a specific shape, for example, a tank shape, on the display 4, and the maximum number of liquid level detection means connectable as a system, for example. For example, a first image processing program for displaying five tank figures on one screen (" a " in FIG. 3) and a second image processing program for enlarging and displaying the liquid amount of the selected tank (" b " in FIG. 3). It is comprised by storing.

Reference numeral 26 denotes a liquid level increase detecting means, which detects a tank having a heavy liquid amount, such as when fuel oil is supplied to the tank T by a signal from the liquid level calculating means 22, and alerts the detected signal to an alarm (5). And the number of the tank in the increasing state is informed, and the display control means 28 is operated at the intermediate liquid level, and further, the timer 27 is operated at the point where the liquid increase is stopped. A time, for example, 10 minutes, is continuously output to a display control means 28, which will be described later, a signal instructing an enlarged display.

The display control means 28 starts the first image processing program for simultaneously displaying the liquid amounts of the plurality of tanks in a state where the liquid level of the tank does not increase, and at the time when a signal from the liquid amount increase detection means is output. The second image processing program for enlarging and displaying the liquid level of the tank which is in the increasing state from the time until the timer 27 times up, and then the tank selected by the enlarged display selection button 8 above. The amount of liquid is configured to be processed by the second image processing program.

In the present embodiment, when five liquid level measuring means 3 are connected to the system, the liquid amount of each tank mimics the figure of the tank on the same indicator 4 as shown in Fig. 3 (a). Is displayed.

That is, the liquid level calculating means 22 receives the liquid level measurement signal from the liquid level detecting means 3 by the converting means 21 in the order set in advance, and the measurement signal currently received from the calculation memory means 23. The calculation formula corresponding to the tank from which is sent is found, the measurement data is converted into a liquid amount, and stored in the liquid storage unit 24.

When the measurement is completed for one tank, the liquid level calculating means 22 operates the converting means 21 to receive the liquid level measurement data of the next tank, and calculates a formula corresponding to this tank from the formula storage means 23. It finds, converts it into liquid quantity, stores it in liquid storage means 24, and updates it.

The same process is repeated from the beginning again in the step of converting the data from all the liquid level detecting means 3 into the liquid amount by repeating the same process as the catabolism.

As a result, as shown in Fig. 3A, the tank numbers " 1 " and " 2 " "5", the oil type contained in the tank T, and the liquid amount of the fuel oil contained in the tank are displayed by the pattern of the tank.

In this state, when fuel oil is supplied from a tank lorry to one tank, for example, a tank of tank number 1, the liquid quantity increase detecting means 26 detects this and outputs a signal. As a result, an alarm is sounded that the tank number 1 is being supplied from the alarm unit 5, and the part corresponding to the tank number 10 of the display unit 6 is lighted. ), The liquid level of only one tank of tank No. 1 is found from the liquid storage means 24 from the normal display state (" a " in FIG. 3) and enlarged. ("B" in FIG. 3) When the liquid level of the tank is displayed in the figure of a large tank, the liquid level is also displayed as a numerical value so that detailed liquid data about the tank being replenished can be known. Subsequently, the display control means 28 continues the display in the enlarged state. When the timer 27 reaches the set time, the display control means 28 operates the first image processing program to convert the display to the normal display. .

On the other hand, if replenishment is started in another tank until the time set in the timer 27 has elapsed, the liquid quantity increase detecting means 26 detects this and starts the second image processing program by the display control means 28. Let's do it. As a result, the liquid quantity data of the tank in which the replenishment is started is withdrawn from the liquid quantity storage means 24, and enlarged and displayed on the indicator 4 as in the replenishment of the tank No. 1 described above.

In addition, even when the tank is not supplied to the tank, if the tank to be enlarged and displayed is designated by the enlarged display selection button 8, the display control means 28 operates the second image processing program to designate the tank. The amount of liquid is found from the liquid storage unit 24, and this data is enlarged and displayed as shown in FIG.

In addition, in the above-described embodiment, the liquid amount is displayed by imitating a tank figure, but the same action can be obtained even if it is displayed by another pattern, for example, a bar graph or a circle graph as shown in FIG. It is clear that it can be done.

[Effects of the Invention]

As described above, in the present invention, a liquid level display device which displays measurement data from a plurality of liquid level detection means in the form of a graphic on the same screen, comprising: liquid level calculation means for converting a signal from the liquid level detection means into a liquid amount; The liquid amount increase detection means for detecting an increase and the display control means for expanding and displaying the liquid amount data of the tank in which the liquid amount is increased when the increase in the liquid amount is detected are always provided. When the liquid level of another tank is increased, the liquid level of this tank can be enlarged and displayed automatically, so that the information can be easily grasped.

Claims (1)

A liquid level display device which graphically displays measurement data from a plurality of liquid level detection means on the same screen, comprising: liquid level calculating means for converting a signal from the liquid level detection means into a liquid level, and a liquid amount increase detection for detecting an increase in the liquid amount Means and display control means for enlarging and displaying the liquid level data of the tank in which the liquid level is increased when an increase in the liquid level is detected.