JPH02126109A - Level display device - Google Patents

Abstract

PURPOSE:To easily and accurately display a relative level difference measured at each measurement position by displaying a relative displacement difference between the level in each measurement position and a reference level on a level display means arranged in positional relations correspond to the measurement position. CONSTITUTION:A reference manometer 1 installed in a reference position of a structure and many manometers 2 installed in respective measurement positions are connected to each other by connection tubes 3. The liquid surface level is detected by a liquid surface sensor 7 of the reference manometer 1 and is displayed on a bar graph 11A and a digital meter 11B of a display device 10. Each displacement manometer 2 is provided with a sensor 8 which generates the output when the liquid surface reaches a prescribed level, and plural lamps 12 arranged in positional relations to respective measurement positions are lit. The liquid surface level displayed on the bar graph 11A or the digital meter 11B at the time of lighting of one lamp 12 indicates the difference in level between the measurement position where the displacement manometer 2 corresponding to this lamp 12 is installed and the position where the reference manometer 1 is installed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a device for displaying relative displacements of levels measured at multiple arbitrary locations on a structure or the like.

(Prior art) To measure the relative height positional relationship (level) of multiple parts of large structures such as buildings and bridges,
Conventionally, for example, a measuring instrument using a laser beam or an optical level has been used.

(Problems to be Solved by the Invention) These measurement results are usually manually recorded, or based on these, the elevation difference of each measurement part is calculated.

When there are many measurement points, it is difficult to organize the measurement results, and it is quite a time-consuming task to organize the measurement results so that the level of each measurement point can be intuitively grasped with the naked eye. In particular, troublesome graphical processing is required to display the height positional relationship of each measurement site in the form of contour lines.

An object of the present invention is to provide a device that can easily and accurately display relative level differences measured at multiple locations.

(Means for Solving the Problems) Therefore, as shown in FIG. 1, the present invention includes means 50 for calculating a displacement difference by comparing 12 a predetermined level position signal inputted from each measurement site with a reference level position signal. , means 51 for storing each displacement difference, level display means 52 arranged in a positional relationship corresponding to each measurement site, means 53 for displaying the displacement difference, and each display means 52 .
53 and a control means 54 for displaying a corresponding display.

Also, a printer 5 that prints the stored contents as necessary.
5.

(Operation) Therefore, the relative displacement difference of the level at each measurement site with respect to the reference level can be determined by the level display means 52 arranged in a positional relationship corresponding to each measurement site together with the displacement difference display means 53.
It can be understood visually by the display. In addition, the storage means 5
If the level of each measurement site is displayed for each predetermined displacement difference based on the stored contents of No. 1, the height position of the measurement site can be expressed in terms of contour lines.

(Example) Embodiments of the present invention will be described according to the drawings.

Figure 2 shows the overall configuration including the measuring device. In the figure, 1 is a reference 7-nometer installed at a predetermined reference position of the structure, and 2 is a large number of displacement meters installed at each measurement location. 7 nm, and these are connected to each other by a communication pipe 3, and the liquid level of 'e, (water) supplied to these pipes is adjusted by a water injection valve 4 and a drain valve 5.

As will be described later, the reference manometer 1 includes a liquid level sensor 7 that continuously measures and outputs the liquid level, whereas each displacement 77 meter 2 outputs an output when the liquid level reaches a predetermined level. It is equipped with a sensor 8 that generates.

Display device 1 based on signals from each sensor 7.8...
0 indicates the displacement difference of each measurement site.

The display device 10 includes a microcomputer that performs calculation processing on each input signal, and has a bar graph 11A and a digital meter 11B that continuously display the relative level difference of each measurement site with respect to the level at the reference position based on the calculation results. It also includes a plurality of lamps 12 as level display stages arranged in correspondence with the positional relationship of each measurement site. Each lamp 12 is given a position number corresponding to each measurement site, so that it can be seen at a glance which measurement site it corresponds to.

Further, a printer 13 is provided which prints out the relative displacement difference of the portion where the lamp 12 is lit with respect to the reference level.

The display of the bar graph 11A, the digital meter 11B, the lighting of the lamp 12, and the printing operation of the printer 13 are performed from a memory that stores the level difference of each measurement site with respect to the reference level calculated based on each input signal. This is done as described below while recalling the stored values.

In the figure, 14 is a group of switches for instructing start and end of measurement, display operation, display selection, print operation, print selection, etc.

FIG. 3 shows the specific structure of the reference manometer 1 mentioned above.
A 70-t 16 is placed inside A, and this 70-t 16
In this embodiment, a differential transformer consisting of a core 17 connected to a float 16 and a fill 18 located outside the core 17 is installed as the sensor 7 for detecting the position of the transmitter 19A. Apply a current of
The rectifier circuit 19B converts the alternating current output from the coil 18, which varies depending on the position of the core 17, into a direct current output, and inputs the DC output to the controller 10. Therefore, the sensor 7 outputs a signal that changes depending on the position of the core 17 linked to the float 16, and based on this, the liquid level can be continuously measured.

In addition, there is a protective tube 15B made of metal etc. around the inner tube 15A.
is placed. The communication pipe 3 is connected to the bottom of the id 15A whose upper end is open.

Fig. 4 shows the structure of the displacement manometer 2 attached to each measurement site, and shows the same transparent manometer 2 as described above.
A 70-tooth 20 is disposed inside the tube 5A so as to be able to move up and down freely, and a proximity switch 21 serving as a level sensor 8 for the liquid level is located in the middle of the protection tube 15B to detect the metal part 2OA of the flow) 20.
is provided.

When the position of the float 20, which is displaced with the liquid level, reaches a predetermined level, the proximity switch 21 detects this and outputs a signal.

The position of the proximity switch 21 can be finely adjusted in the liquid level direction by means of an adjustment means 22 consisting of an elongated hole and a bolt. Protection tube 1
Part of 5B has a handle 1 for attaching it to the measurement site 2
3 is installed protrudingly. Further, a window section cut out in the vertical direction is formed in a part of the protection tube 15B, so that the liquid level can be visually checked.

Each displacement 77 meter 2 is installed so that the initial mounting position (level) of each displacement 77 meter 2 is at the same level. The reference manometer 1 is installed at a predetermined reference position, and its standard level is set to match the reference level of each displacement manometer 2.

To measure the level in the state set in this way, first close the drain valve 5, open the water inlet valve 4, and start injecting water into the pipe (these operations are performed by the microcombi built in the display device 10). (can also be controlled by a coater).

Since the reference manometer 1 and the displacement manometer 2 are connected to each other by a communication pipe 3, and their upper ends are open to the atmosphere, the liquid level gradually rises in accordance with the opening degree of the water injection valve 4. Once the liquid level has risen to a predetermined minimum level, measurements can begin.

The liquid level is detected by the liquid level sensor 7 of the reference manometer 1, and the microcomputer of the display device 10 processes it, and the results are displayed on the monitor 711A and the digital meter 11B from time to time.

When the level at the measurement site where each displacement manometer 2 is installed is not changing, the signals from the sensors 8 of each displacement 7-nometer 2 are simultaneously transmitted at the same time that the detected liquid level of the reference manometer 1 reaches a predetermined standard value. Since this is output, all the lamps 12 are lit based on this.

On the other hand, when the level of each measurement site changes individually due to changes over time, a signal is first output from the displacement 77 meter 2 located at the lowest position as the liquid level rises, and this causes the display device 10 to respond accordingly. The lamp 12 lights up. The liquid level displayed on the bar graph 11A or digital meter IIB when the lamp is on is the reference manometer 1.
This displacement 77 meters 2 for the part where ￥kF11
This shows the level difference between the measurement locations where the

As the liquid level further rises, signals are sequentially output from the displacement 77 meters 2 at the lowest level, and the lamps 12 are accordingly turned on. The arrangement of lamps 2 corresponds to the measurement area where the displacement manometer 2 is installed, so depending on the illumination condition of the lamps 12 (2α lamp order), the relative level changes of the overall measurement area of the structure can be seen at a glance. It can be understood by

In this case, the bar graph 11A or the digital meter 11
For example, the displacement difference displayed in B is divided into 51 intervals as one unit, and the lamp 12 lit within that level range is
When moving to the next level range as the liquid level rises, the light goes out, and only the lamps 12 corresponding to the displacement 77 meters 2 for which the signal was issued in the new level range are lit, and only those in the same level range are lit. You can also select and display. In this case, as the liquid level rises, measurement sites within the same level range are displayed in groups, and the displacement difference can be ascertained with the negative eye.

When the liquid level reaches a predetermined maximum level, the measurement is terminated, but normally all lamps 12 will be turned on at this point. After the measurement is completed, the water in the pipe is drained by closing the water injection valve 4 and opening the drain valve 5.

By the way, the displacement amount measured by the reference manometer 1 when the displacement manometer 2 of each measurement site outputs is stored in the memory, and can be called up as needed even after the measurement is completed.

For example, in the order of decreasing displacement difference within the level range, 5
o+n+, 10 yaIll, 1510m=-
While displaying this on the bar graph 11A or digital meter 11B, the lamps 12 corresponding to the level ranges are turned on for each group. Of course, in each level range, the lamp 12 that is lit can be turned off in a different level range, or it can be kept lit and the lamp 12 displayed as $A.

Along with this display operation, printing operations using the printer 13 can also be performed as needed. The printer 13 prints the position numbers of the lit lamps 12 for each group for each level range of each displacement difference, or prints the displacement differences corresponding to each position number in numerical order. Figure 5 (A), (
B) and (C) show printing examples, so the displacement difference of 5 m111 + 10 + l1 m + 15 mm is shown isolinearly.

Further, this printing operation allows the printer 13 to print the level difference of the corresponding portion every time the lamp 12 is turned on during measurement.

(Effects of the Invention) As described in ``2'' below, according to the present invention, each level display means is arranged in a layout relationship corresponding to each measurement site, and the relative displacement difference of each measurement site with respect to the reference level is displayed. are displayed individually, making it possible to grasp the overall level of all measurement sites at a glance.

In particular, this is very effective when periodically measuring level changes over time at a predetermined measurement site in a structure or the like. Furthermore, since each measurement result is stored in memory, it can be redisplayed at any time after measurement if necessary, and it can also be printed out using a printer at the same time, making it easy to organize measurement data.

[Brief explanation of drawings]

Fig. 1 is a block diagram of the present invention, Fig. 2 is a schematic block diagram of an embodiment of the present invention, Fig. 3 is a sectional view of a standard 7-nometer, Fig. 4 is a sectional view of a displacement manometer, and Fig. 5 (A ), (B),
(C) is an explanatory diagram showing a printing example. 10... Display device, 11A... Bar graph, IIB
...Digital meter, 12...Lamp, 13...
printer, 14... switch, 50... calculation means,
51... Storage means, 52... Level display means, 53
. . . displacement difference display means, 54 . . . control means. Patent applicant: Takenaka Corporation Patent applicant: Kayabae Gyo Co., Ltd. Kizu Diagram (A) Diagram (Japanese)

Claims (1)

[Claims] 1. Means for calculating a displacement difference by comparing a predetermined level position signal input from each measurement site with a reference level position signal;
means for storing each displacement difference, level display means arranged in a positional relationship corresponding to each measurement site, means for displaying the displacement difference, and control means for recalling the stored contents and displaying them correspondingly on each display means. A level display device comprising: 2. The level display device according to claim 1, further comprising a printer for printing the stored content.