JP2000213167A - Filling managing method and device of fluid to long space - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dispense with measuring works of operators as practiced in conventional cases when a fluid such as concrete or the like is filled in a long space and efficiently carry out the filling work by accurately grasping the filling condition of the fluid in a real time. SOLUTION: This method is a filling management method in the case that a fluid C is filled from one side of a long space to the space by a pump 3. A distance sensor 5 detecting the distance to the surface of the fluid is installed at the other side of the long space and the filling quantity of state of the fluid C is operated on the basis of the detected data of the distance sensor 5 and the data are shown on a display 14. Operators adjust the operational conditions of the pump 3 while watching the display 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for managing the filling of a fluid into a long space, and more particularly, to a method for pouring a concrete material into a long space defined by a mold. The present invention relates to a management method and a management device.

[0002]

2. Description of the Related Art For example, when casting column concrete for a building, if the column is long, it is not possible to obtain homogeneous hardened concrete by casting concrete from the upper side of the formwork. Is adopted. In this case, depending on the filling speed of the concrete, an excessive stress is applied to the form, and the filling state is affected, for example, a cavity is formed near an obstacle inside the form. In addition, it is necessary to end the filling at a predetermined position of the mold. Therefore, especially when concrete is poured into a long casting space, it is necessary to accurately grasp and manage the filling speed and the tip position.

Conventionally, a method as shown in FIG. 8 has been known as a method for managing such concrete placement. That is, as shown in FIG. 2A, a measuring member 52 is arranged on the upper part of the mold 51, and the measuring member 52 lowers the measuring scale 53 into the mold 51, so that the tip position of the concrete C is determined. It is a method of measuring. The measuring person 52 measures the tip position at regular intervals, calculates the concrete filling speed, and transmits the data to the pump operator 55 of the concrete pumping car 54. Operator 5
5 adjusts the pump 56 of the pump wheel 54 based on the transmitted data.

[0004] Further, as shown in FIG.
A filling confirmation hole 57 is provided at a constant pitch in the space, and the measuring person 52 confirms the blowing of the concrete from the confirmation hole 57, thereby confirming the tip position of the concrete, calculating the filling speed, and transmitting the data to the pump operator. A method of transmitting the information to the DUT 55 is also known.

[0005] However, the above-mentioned conventional method has the following problems.
(B) In any of the methods described above, since the measurer 52 checks the position of the tip of the concrete, calculates the filling speed, and transmits the result to the pump operator 55, the concrete filling state is used. Cannot be accurately grasped in real time.

[0006] In the case of the method shown in (a), not only a long measuring scale is required, but also it is difficult to measure in a direction other than the vertical direction. In the case of the method shown in FIG.
In addition to providing the filling confirmation hole 57 in 1, it is necessary to close it after confirming the filling. Since the filling speed is obtained by measuring the moving time of the concrete between the confirmation holes, the management state of the filling speed is determined by the pitch of the confirmation holes. Also, if the filling confirmation hole cannot be installed,
If it is not possible to approach the confirmation hole, confirmation is impossible.

[0007]

SUMMARY OF THE INVENTION The present invention has been made on the basis of the above technical background, and has the following objects. An object of the present invention is to fill a long space with a fluid such as concrete by eliminating the need for a measurement work by a measuring person as in the past, and by accurately grasping the filling state of the fluid in real time, the filling work can be performed. To provide a filling management method and a management device capable of performing the filling efficiently.

[0008]

The present invention employs the following means to achieve the above object. That is, the present invention is a filling management method for filling a long space with a fluid from one side by a pump, and detecting a distance between the long side space and the surface of the fluid on the other side. A distance sensor for calculating the amount of state of filling of the fluid based on data detected by the distance sensor, displaying the amount on the screen, and adjusting the operating state of the pump while watching the display screen. It is in a method of filling and filling a fluid into a shaku space.

The present invention also relates to a filling management device for filling a long space with a fluid from one side by a pump, wherein the filling management device is provided on the other side of the long space and is provided with a surface of the fluid. A distance sensor that detects a distance between the two, a calculating unit that calculates a charged state amount of the fluid based on detection data of the distance sensor, and a display unit that displays the calculated charged state amount on a screen. The present invention is directed to an apparatus for managing the filling of a fluid into a long space.

[0010] According to the present invention, the distance between the surface of the fluid and the surface of the fluid is detected by the distance sensor, and the amount of the charged state is calculated based on the detected data and displayed on the screen. can do.

In order to transmit the detection data of the distance sensor to the calculating means, the data may be transmitted by wire, but may be transmitted by wireless transmitting / receiving means. Control means for controlling the operation state of the pump based on the charged state quantity, in addition to displaying the charged state quantity on the screen, may be provided. The filling state quantity includes a tip position and a filling speed of the fluid. The long space is defined by a cylindrical body such as a mold, for example, and in this case, the fluid is concrete.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall layout diagram of each device for implementing the present invention. This embodiment is an example in which column concrete is cast, and concrete C is poured and filled into a formwork 1 that divides a long space by a pump 3 of a concrete pump truck 2 from below. .

A distance sensor 5 is installed on the upper part of the form 1 via a gantry 4. The distance sensor 5 is a non-contact optical distance sensor using a laser beam or the like, and detects a distance _Mn between the mold 1 and the surface of the concrete C to be filled.

In this embodiment, a wireless transmission / reception unit is provided as a unit for transmitting the detection data measured by the distance sensor 5 to the computer 9. In the example shown, the wireless transmitting / receiving means includes a terminal station 6 connected to the distance sensor 5 via an interface such as RS232C, a relay station 7, and a center station 8 connected to the computer 9 via an interface such as RS232C. It is composed of As a radio wave format, a spread spectrum system with few transmission errors can be adopted. Note that the relay station 7 may not be necessarily provided depending on the transmission path.

A general-purpose portable computer 9 can be used as the arithmetic control means, and FIG. 2 is a block diagram showing the configuration. As is well known, the computer 9 includes a CPU (central processing unit) 10, a ROM 11 storing a startup program and the like, and a RAM 12 storing an arithmetic processing program and data. C
An input device 13 such as a keyboard for inputting initial data and the like is connected to the PU 10, and a display device 14 such as a liquid crystal screen is connected to the PU 10. CPU1
Numeral 0 inputs the detection data of the distance sensor 5 via the wireless transmission / reception means, calculates a state quantity of the concrete C in the form 1 by executing a predetermined arithmetic processing program, and displays the display device 14.
To be displayed.

Next, the operation of measuring and displaying the amount of concrete filling will be described with reference to the flowchart of FIG. Before starting concrete placing, initial data such as a filling start position, a filling end position E (see FIG. 1), a filling end position E-distance between sensors, a measurement time interval, a filling speed calculation interval, etc. in the formwork 1 are set. I do.

At the same time as placing concrete in the formwork,
The measurement display operation is performed, and every time a measurement time interval, that is, a predetermined time elapses (step S ₁ ), the distance between the surface of the filled concrete is measured by the distance sensor 5 (step S ₂ ). The measurement data is transmitted and received by wireless transmission / reception means 6,
7,8 via the input into the computer 9, the filling state of the concrete is calculated (Step S _3).

In this embodiment, the remaining distance for indicating the position of the tip of the filled concrete and the filling speed are selected as the amount of filling state. The remaining distance and the filling speed at the n-th measurement are calculated by the following equations. L _n = a _{M n -L 0 V n = (} L n -L n-m) / m · t _{where, L} n: n-th measurement time of the remaining distance _{(mm) M} n: n-th concrete surface at the time of measurement - inter-sensor distance (mm) _{L 0:} filling end position E- inter-sensor distance _{(mm) V} n: the filling rate at the n-th measurement (mm / min) t: measured time interval (in seconds) m: set number (positive Integer)

[0019] As understood from the calculation formula of the filling speed V _n, fill velocity based on the n-th measurement data and (n-m) th measurement data since when it is n> m operation In this case, the measurement time interval t is shortened and m
Is preferably set to an appropriate numerical value larger than 2 to some extent. The reason is to ensure that the concrete has reached the end position immediately, whereas it is necessary to shorten the measurement time interval t, since it is affected by pulsation of the pump for the filling speed V _n, the This is because a certain interval is required to avoid the influence.

The calculated remaining distance and the filling speed are displayed on the screen of the display device 14 (step S ₄ ), and the operator 15 of the concrete pump truck 2 observes these data and adjusts the filling speed to the optimum speed (normally 1 m). / Min) is adjusted. FIG. 4 shows an example of the screen display. Measurement display operation of the filling state amount, until the concrete reaches the end position E, i.e. to run until the remaining distance reaches zero (step S _5), the operator 15 confirms that the reached end position Then, the operation of the pump 3 is stopped.

In the above-described measurement display operation, distance measurement is performed at fixed time intervals, but continuous measurement may be performed. In this case, the filling speed is calculated from the required time after confirming a change in a certain distance. FIG.
Is a flowchart showing the measurement operation.

That is, the distance measurement is continuously performed (step S ₁ ), and the remaining distance is continuously calculated and displayed (step S ₂ ). As a result of the remaining distance calculation, if the end position has not been reached (step S ₃ ), it is determined whether the distance has changed by a certain distance (step S ₄ ). If the distance has changed by a certain distance, the filling speed is calculated and displayed (step S ₃ ). S _5).

In the above embodiment, the operator 15 visually checks the concrete filling state amount displayed on the screen and
Although the example in which the operating state of the pump 3 is adjusted has been described, the operating state of the pump 3 can be controlled by the computer 9 based on the measurement data. FIG. 5 is a block diagram showing a configuration for this purpose. The pump 3 is connected to the computer 9 via the amplifier 16. Other configurations are the same as in the above embodiment.

FIG. 6 is a flowchart showing the control operation of the pump 3. Each time the above-described measurement operation is performed, if the remaining distance has not reached zero, that is, has not reached the end position E (step S ₁ ), a filling flow rate is calculated (step S ₂ ). Here, the filling flow rate is a filling state quantity corresponding to the discharge rate of the pump 3, that is, a flow rate of concrete in the mold.
It is calculated by the following equation. Q _n = A · V _n where Q _n : filling flow rate (m ³ / min) A: empty cross-sectional area in mold (m ² )

Then, a predetermined pump discharge amount Q
Set value and filling flow rate Q_nAnd (Step S₄), Charge
Filling flow rate Q_nIs not the set value (step S₄),That
Outputs the pump operation amount according to the deviation amount and discharges the pump 3.
Change the amount (step S ₅). Such behavior is
Executed every time distance data is measured, and the remaining distance reaches zero
Then (Step S₁), The operation of the pump 3 is stopped
(Step S₆).

The above embodiment is merely an example, and the present invention can be variously modified as described below. (1) In the above-described embodiment, an example in which the present invention is applied to the case where concrete is poured into a formwork is shown.
The present invention can be applied to a case where a fluid is filled in a cylindrical body other than the mold as long as it partitions a long space. (2) The filling direction is not limited to the vertical direction, and is applicable even when the filling direction is a horizontal direction. (3) The detection data of the distance sensor does not depend on wireless communication,
It can also be transmitted to a computer by wire. (4) The tip position information of the fluid is not limited to the remaining filling distance, but may be, for example, a height level from a reference position.

[0027]

As described above, according to the present invention, when filling a long space with a fluid such as concrete, the filling state of the fluid can be accurately grasped in real time. It can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is an overall layout diagram of each device for carrying out the present invention.

FIG. 2 is a block diagram illustrating a configuration of a filling management device.

FIG. 3 is a flowchart illustrating a measurement display operation.

FIG. 4 is a diagram illustrating an example of a screen display.

FIG. 5 is a flowchart showing another measurement operation example.

FIG. 6 is a block diagram showing another embodiment including pump control.

FIG. 7 is a flowchart showing a pump control operation.

FIG. 8 is a diagram showing a conventional example.

[Explanation of symbols]

 1: Formwork 2: Concrete pump truck 3: Pump 4: Stand 5: Distance sensor 6: Terminal station 7: Relay station 8: Center station 9: Computer 13: Input device 14: Display device 15: Operator 16: Amplifier E : Filling end position

Claims (8)

[Claims] 1. A filling management method for filling a fluid into a long space from one side by a pump, wherein a distance between the other side of the long space and a surface of the fluid is detected. Providing a distance sensor, calculating the state of filling of the fluid based on the detection data of the distance sensor, displaying the amount on the screen, and adjusting the operating state of the pump while viewing the display screen. A method for managing the filling of a fluid into a space. 2. The method for managing the filling of a long space with a fluid according to claim 1, wherein the charged state quantity includes a tip position and a filling speed of the fluid. 3. The method according to claim 1, wherein the long space is defined by a mold, and the fluid is concrete. 4. A filling management device for filling a fluid into a long space from one side thereof by a pump, wherein the filling management device is provided on the other side of the long space and has a distance from a surface of the fluid. , A calculating means for calculating the amount of state of filling of the fluid based on the detection data of the distance sensor, and a display means for displaying the calculated amount of filling on a screen. Characteristic filling and filling device for long space. 5. An apparatus according to claim 4, further comprising a wireless transmission / reception means for transmitting detection data of said distance sensor to said calculation means. 6. An apparatus according to claim 4, further comprising control means for controlling an operation state of said pump based on said amount of state of charge. 7. The apparatus according to claim 4, wherein the filling state quantity includes a tip position and a filling speed of the fluid. 8. An apparatus according to claim 4, wherein said elongated space is defined by a mold, and said fluid is concrete. .