阅读说明：本技术 一种混凝土标高灌注的自动化控制装置及其控制方法 (Automatic control device for concrete elevation pouring and control method thereof ) 是由 郑挺 陈天雄 于 2019-10-18 设计创作，主要内容包括：本发明公开了一种混凝土标高灌注的自动化控制装置及其控制方法,本装置结合控制方法可实现全自动化混凝土灌注工作,且可实现设计标高一定高度范围内的混凝土面定位,通过在一定高度范围的测量位处设置深度传感器来检测混凝土面在测量位的高度,并在主传感器的辅助下提升精确度；另外,通过深度传感器在测量位内对混凝土面高度与灌注混凝土量结合,实现混凝土面在到达预定目标位时开始逐步减少混凝土的出泵量,在达到标高位停止灌注时,流量控制阀的混凝土出泵量降到最低,可以立即关闭混凝土供应装置出泵口,避免超灌。(The invention discloses an automatic control device and a control method for concrete elevation pouring, wherein the device can realize full-automatic concrete pouring work by combining the control method, can realize concrete surface positioning within a certain height range of a designed elevation, detects the height of a concrete surface at a measuring position by arranging a depth sensor at the measuring position within a certain height range, and improves the accuracy under the assistance of a main sensor; in addition, the height of the concrete surface is combined with the poured concrete amount in the measuring position through the depth sensor, so that the pump output amount of the concrete is gradually reduced when the concrete surface reaches a preset target position, when the pouring is stopped when the height reaches the elevation position, the pump output amount of the concrete of the flow control valve is reduced to the minimum, the pump output port of the concrete supply device can be immediately closed, and the over-pouring is avoided.)

1. An automated control device for concrete elevation pouring, comprising:

concrete supply device (1): the concrete filling device is used for containing and outputting poured concrete, a signal receiver (2) for receiving a control signal is arranged on the concrete supply device (1), a flow control valve (3) is arranged at a pump outlet of the concrete supply device (1), and the flow control valve (3) is connected with the signal receiver (2);

filling pile (4): the device comprises a pile well (4-1) for pouring concrete, wherein a measuring position (5) with a partial depth range is preset in the pile well (4-1), and the measuring position sequentially comprises a preset target position (5-1), an elevation position (5-2) and an actual elevation position (5-3) for concrete rising from low to high;

depth sensor (6): the resistance value of each height position in the measuring position (5) is measured in real time when the measuring position (5) is placed in the pile well;

Main sensor (7): the main sensor (7) is arranged at an elevation position and is used for measuring and obtaining the temperature, the salinity and the dielectric constant of the contacted medium;

control terminal (8): the device comprises a packet data acquisition module (8-1), a data processing module (8-2) and a signal transmitter (8-3), wherein the data acquisition module (8-1) and the signal transmitter (8-3) are both connected with the data processing module (8-2), the depth sensor (6) and the main sensor (7) are both connected with the data acquisition module (8-1), and the signal transmitter (8-3) is in matched butt joint with the signal receiver (2).

2. The automatic control device for level pouring of concrete according to claim 1, wherein the depth sensor (6) is composed of a plurality of pairs of electrode sets (6-1) arranged from top to bottom, each pair of electrode sets (6-1) is arranged according to a preset distance, the electrode set (6-1) arranged at the lowest position of the depth sensor (6) is located at a preset target position (5-1), the electrode set (6-1) comprises a left electrode valve (6-1-1) and a right electrode valve (6-1-2), and each of the left electrode valve (6-1-1) and the right electrode valve (6-1-2) can measure the resistance value of the environment medium in which the electrode set is located.

3. The automatic control device for concrete level pouring according to claim 1 or 2, characterized by further comprising a cloud server (9) and a mobile terminal (10), wherein the control terminal (8) and the mobile terminal (10) are both connected with the cloud server (9) through wires and/or wirelessly, the control terminal (8) can also be directly connected with the mobile terminal (10) through wireless, and the mobile terminal (10) can be connected with the signal receiver (2) through wires and/or wirelessly to control the concrete pumping amount of the flow control valve (3).

4. The automatic control device for concrete elevation pouring according to claim 3, wherein the depth sensor (6) and the main sensor (7) are connected with the control terminal (8) through cables, the depth sensor (6) and the main sensor (7) are suspended or fixed at the measuring position (5) through cables, and the main sensor (7) has an overall oval structure.

5. An automatic control device for level pouring of concrete according to claim 4, characterized in that a material pipe (11) is arranged at the pump outlet of the concrete supply device (1), and the material pipe (11) extends to the position above the pile well (4-1) for pouring during pouring.

6. A method for controlling the level of concrete pouring according to any of the claims 1-5, characterized in that it comprises the following steps:

s1, measuring a calibration value, namely placing a depth sensor (6) and a main sensor (7) in concrete for measurement, measuring by the depth sensor (6) to obtain a calibration resistance value in the concrete, measuring by the main sensor (7) to obtain a calibration temperature value, a calibration salinity value and a calibration dielectric constant value of the concrete, and sending the calibration value to a control terminal (8) through a cable;

S2, putting a sensor, namely, hanging or fixing a depth sensor (6) and a main sensor (7) at a measuring position (5) through a cable, measuring the resistance value of a medium at the corresponding position of each electrode valve in the depth sensor (6) in real time, measuring a temperature value, a salinity value and a dielectric constant value in real time by the main sensor (7), and transmitting a number set obtained by measurement at the same time to a control terminal (8) in real time;

s3, the control terminal (8) compares the resistance measurement value of the left electrode valve (6-1) located at the lowest part of the depth sensor (6) with the calibration resistance value, wherein if the resistance measurement value is in the range of 0% -80% of the calibration resistance value, the step S4 is carried out; if the resistance measurement value is 81% -100% of the calibration resistance value, the step S5 is entered;

s4, the control terminal (8) does not send control information, the flow control valve (3) continues to pour concrete into the pile well (4-1) according to the current concrete pumping quantity, and the step S3 is returned;

s5, the control terminal (8) sends control information to the flow control valve (3), and the flow control valve (3) starts to gradually reduce the concrete pumping quantity; meanwhile, the control terminal (8) analyzes and obtains the rising position of the concrete surface in the pile well (4-1) through comparing each group of electrode valves of the depth sensor (6);

s6, when the control terminal (8) obtains that the concrete surface in the pile well (4-1) reaches the elevation (5-2) through calculation of the depth sensor (6), the measured value of the main sensor (7) located at the elevation (5-2) is within 90% -100% of the corresponding calibrated value, the control terminal (8) sends a stop command to the flow control valve (3), the flow control valve (3) is closed, and the concrete supply device (1) stops concrete pouring work;

S7, the material pipe (11) is pulled out of the pile well (4-1), concrete in the material pipe (11) falls into the pile well, and the control terminal (8) measures the actual height of the concrete surface in the pile well (4-1), namely the actual elevation (5-3), through the depth sensor (6).

7. The method for controlling higher concrete pouring according to claim 6, wherein in step S5, the concrete surface elevation position in the pile well (4-1) is obtained by the control terminal (8) in real time by comparing the electrode valves of the depth sensor (6) by the following specific methods:

s51, when the concrete surface reaches a preset target position (5-1), taking a left electrode valve (6-1) at the preset target position (5-1) as a reference electrode, comparing the reference electrode with the right electrode valve (6-2) in the same group and the measured values of the other left electrode valves (6-1) and the right electrode valves (6-2) positioned above the reference electrode to obtain a resistance difference matrix, then calculating the resistance difference in the same group to obtain a resistivity profile of the depth sensor (6), and then reading the resistivity profile through equipotential drawing software to obtain the height position of the concrete surface;

s52, the concrete surface continues to rise, when the concrete liquid level reaches a group of electrode valves adjacent to a preset target position (5-1), the concrete liquid level moves upwards to a new left electrode valve (6-1) to serve as a new reference electrode, then the new left electrode valve (6-1) is compared with the right electrode valve (6-2) of the same group of the new reference electrode, the left electrode valve (6-1) of other groups above the new reference electrode and the right electrode valve (6-2) to obtain a new group of resistance difference matrix, then the resistance difference matrix is calculated to obtain a resistivity profile of the depth sensor (6), and then the resistivity profile is read through equipotential drawing software to obtain the height position of the concrete surface;

And S53, circularly executing the step S52 until the perfusion work is stopped.

8. A method for controlling concrete level pouring according to claim 6 or 7, characterized in that said depth sensor (6) and said main sensor (7) respectively detect each item of data of the medium 2-5 times per second.

9. The control method for concrete elevation pouring according to claim 8, wherein the data acquisition module (8-1) receives each group of data measured by the depth sensor (6) and the main sensor (7) in real time, the data processing module (8-2) analyzes and processes each group of data to obtain the concrete surface ascending condition in the pile well (4-1), and then controls a control command to gradually reduce the pumping amount of concrete through the signal transmitter (8-3) and the signal receiver (2) according to a preset deceleration; meanwhile, the data processing module (8-2) sends each group of data and the processing result to the cloud server (9) through the signal transmitter (8-3) in real time, the mobile terminal (10) obtains the perfusion progress in real time through the mobile cloud server (9), and the mobile terminal (10) can directly control the flow control valve to work.

Technical Field

The invention relates to the technical field of foundation building engineering, in particular to an automatic control device for concrete elevation pouring and a control method thereof.

Background

The bored concrete pile is formed by directly forming a circular hole on the designed pile position, adding a steel cage in the hole after forming the hole, and pouring concrete; with the vigorous development of the engineering construction business in China, the cast-in-place pile foundation engineering is widely adopted in large-scale engineering such as high-rise buildings, bridges, ports and docks, offshore oil production platforms, nuclear power stations and the like, but elevation control of cast-in-place concrete piles is one of the difficulties in the engineering construction of the cast-in-place concrete piles all the time, and the difficulty is that the elevation of the cast-in-place concrete piles is generally located below the construction ground, the real-time casting height of concrete cannot be intuitively obtained, only estimation methods can be relied on in actual engineering, in order to ensure the quality, over-casting is generally carried out, on one hand, cost waste is caused, and on the other hand.

Disclosure of Invention

The invention aims to provide an automatic control device and a control method for concrete elevation pouring, and aims to solve the problems that the excessive pouring caused by the fact that the concrete pouring height cannot be visually and accurately detected, the working equipment is semi-automatic, and the actual height after the excessive pouring cannot be obtained after the excessive pouring occurs in the background technology.

In order to achieve the above object, the present invention provides the following technical solution, an automatic control device for concrete elevation pouring, comprising:

concrete supply device: the concrete supply device is provided with a signal receiver for receiving control signals, and a pump outlet of the concrete supply device is provided with a flow control valve which is connected with the signal receiver;

Pile grouting: the pile well is provided with a concrete pouring pile well, a measuring position with a partial depth range is preset in the pile well, and the measuring position sequentially comprises a preset target position, an elevation position and an actual elevation position, wherein the concrete rises from low to high;

a depth sensor: the resistance value of each height position in the measuring position is measured in real time when the measuring position is placed in the pile well;

a main sensor: the main sensor is arranged at an elevation position and used for measuring and obtaining the temperature, the salinity and the dielectric constant of a contacted medium;

the control terminal: the device comprises a packet data acquisition module, a data processing module and a signal transmitter, wherein the data acquisition module and the signal transmitter are both connected with the data processing module, the depth sensor and the main sensor are both connected with the data acquisition module, and the signal transmitter is in matched butt joint with the signal receiver.

Preferably, the depth sensor is composed of a plurality of pairs of electrode groups which are arranged from top to bottom, each pair of electrode groups is arranged according to a preset interval, the electrode group arranged at the lowest position of the depth sensor is positioned at a preset target position, the electrode group comprises a left electrode valve and a right electrode valve, and each of the left electrode valve and the right electrode valve can measure the resistance value of the environment medium in which the electrode valve is positioned.

Preferably, the concrete pump control system further comprises a cloud server and a mobile terminal, wherein the control terminal and the mobile terminal are connected with the cloud server through wires and/or wirelessly, the control terminal can also be directly connected with the mobile terminal through wireless, and the mobile terminal can be connected with the signal receiver through wires and/or wirelessly to control the concrete pump discharge amount of the flow control valve.

Preferably, the depth sensor and the main sensor are connected with the control terminal through cables, and are suspended or fixed at the measuring position through cables, and in addition, the main sensor is of an overall oval structure.

Preferably, a material pipe is arranged at a pump outlet of the concrete supply device, and the material pipe extends to the upper part of the pile well during pouring to perform pouring.

A method for controlling the level of concrete pouring from any one of the above methods, comprising the steps of:

s1, measuring a calibration value, namely placing a depth sensor and a main sensor in concrete for measurement, wherein the depth sensor measures to obtain a calibration resistance value in the concrete, the main sensor measures to obtain a calibration temperature value, a calibration salinity value and a calibration dielectric constant value of the concrete, and the calibration value is sent to a control terminal through a cable;

S2, putting a sensor, namely, hanging or fixing a depth sensor and a main sensor at a measuring position through a cable, measuring the resistance value of a medium at the corresponding position of each electrode valve in the depth sensor in real time, measuring a temperature value, a salinity value and a dielectric constant value in real time by the main sensor, and transmitting a number set obtained by measurement at the same time to a control terminal in real time;

s3, the control terminal compares the resistance measurement value of the left electrode valve positioned at the lowest part of the depth sensor with the calibration resistance value, wherein if the resistance measurement value is in the range of 0-80% of the calibration resistance value, the step S4 is carried out; if the resistance measurement value is 81% -100% of the calibration resistance value, the step S5 is entered;

s4, the control terminal does not send control information, the flow control valve continues to pour concrete into the pile well according to the current concrete pumping quantity, and the step S3 is returned;

s5, the control terminal sends control information to the flow control valve, and the flow control valve starts to gradually reduce the concrete pumping amount; meanwhile, the control terminal obtains the rising position of the concrete surface in the pile well through comparing the analysis of each group of electrode valves of the depth sensor;

s6, when the control terminal obtains that the concrete surface in the pile shaft reaches the elevation level through calculation of the depth sensor, the measured value of the main sensor located at the elevation level is within 90% -100% of the corresponding calibration value, the control terminal sends a stop command to the flow control valve, the flow control valve is closed, and the concrete supply device stops concrete pouring work;

S7, pulling the material pipe out of the pile well, enabling concrete in the material pipe to fall into the pile well, and measuring the actual height of the concrete surface in the pile well through a depth sensor by the control terminal;

preferably, in step S5, the specific method for the control terminal to obtain the concrete surface elevation position in the pile well in real time by comparing the electrode valves of the depth sensor sets includes:

s51, when the concrete surface reaches a preset target position, taking a left electrode valve at the preset target position as a reference electrode, comparing the reference electrode with the right electrode valve in the same group and the measured values of other left electrode valves and right electrode valves positioned above the reference electrode to obtain a resistance difference matrix, then calculating the resistance difference in the same group to obtain a depth sensor resistivity profile, and then reading the resistivity profile through equipotential drawing software to obtain the height position of the concrete surface;

s52, the concrete surface continues to rise, when the concrete liquid level reaches a group of electrode valves adjacent to a preset target position, the concrete liquid level is moved upwards to a new left electrode valve to serve as a new reference electrode, then the new left electrode valve is compared with the right electrode valve of the same group of the new reference electrode, the left electrode valves of other groups above the new reference electrode and the right electrode valve to obtain a new group of resistance difference matrix, then the resistance difference matrix is calculated to obtain a resistivity profile of the depth sensor, and then the resistivity profile is read through equipotential drawing software to obtain the height position of the concrete surface;

S53, circularly executing the step S52 until the perfusion work is stopped;

preferably, the depth sensor and the main sensor respectively detect each item of data of the medium at 2-5 times per second.

Preferably, the data acquisition module receives each group of data measured by the depth sensor and the main sensor in real time, the data processing module analyzes and processes each group of data to obtain the concrete surface ascending condition in the pile well, and then the control command is used for gradually reducing the pumping-out amount of the concrete through the signal transmitter and the signal receiver to control the flow control valve according to the preset deceleration; meanwhile, the data processing module sends each group of data and the processing result to the cloud server in real time through the signal transmitter, the mobile terminal obtains the perfusion progress in real time through the mobile cloud server, and the mobile terminal can directly control the flow control valve to work.

Compared with the prior art, the invention has the beneficial effects that: the device can realize full-automatic concrete pouring work by combining with a control method, can realize the positioning of the concrete surface within a certain height range of the designed elevation, detects the height of the concrete surface at a measuring position by arranging a depth sensor at the measuring position within a certain height range, and improves the accuracy under the assistance of a main sensor; in addition, the height of the concrete surface is combined with the poured concrete amount in the measuring position through the depth sensor, so that the pump output amount of the concrete is gradually reduced when the concrete surface reaches a preset target position, when the pouring is stopped when the height reaches the elevation position, the pump output amount of the concrete of the flow control valve is reduced to the minimum, the pump output port of the concrete supply device can be immediately closed, and the over-pouring is avoided.

Drawings

FIG. 1 is a schematic view of the apparatus of the present invention;

FIG. 2 is a block diagram of the system of the present invention;

FIG. 3 is a resistivity profile of the depth sensor of the present invention;

FIG. 4 is a graph of the valve coordinates of the various electrodes of the depth sensor;

fig. 5 is a visual diagram of the height of a concrete surface.

In the figure: 1. the system comprises a concrete supply device, 2. a signal receiver, 3. a flow control valve, 4. a cast-in-place pile, 4-1. a pile well, 5. a measurement position, 5-1. a preset target position, 5-2. an elevation position, 5-3. an actual elevation position, 6. a depth sensor, 6-1. an electrode group, 6-1-1. a left electrode valve, 6-1-2. a right electrode valve, 7. a main sensor, 8. a control terminal, 8-1. a data acquisition module, 8-2. a data processing module, 8-3. a signal transmitter, 9. a cloud server, 10. a mobile terminal and 11. a material pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The automatic control device and the control method for concrete elevation pouring are mainly designed according to the principle that resistance values, conductivity, dielectric constant, temperature and salinity values of different media such as concrete, water and slurry are different.

Referring to fig. 1-3, the present invention provides an automatic control device for concrete level pouring, comprising:

concrete supply device 1: the concrete supplying device 1 is provided with a signal receiver 2 for receiving control signals, and a pump outlet of the concrete supplying device 1 is provided with a flow control valve 3, wherein the flow control valve 3 is connected with the signal receiver 2;

and (4) pouring a pile: the pile well 4-1 is provided with concrete poured, a measuring position 5 with partial depth range is preset in the pile well 4-1, and the measuring position 5 sequentially comprises a preset target position 5-1, an elevation position 5-2 and an actual elevation position 5-3 from low to high, wherein the concrete rises;

the depth sensor 6: placing a measuring position of the pile well 4-1, and measuring the resistance value of each height position in the measuring position 5 in real time;

the main sensor 7: the main sensor 7 is arranged at an elevation position to assist the depth sensor 6 to detect the height of the concrete surface in the measuring position 5, so that the monitoring accuracy of the concrete surface in the measuring position 5 is improved;

The control terminal 8: the device comprises a packet data acquisition module 8-1, a data processing module 8-2 and a signal transmitter 8-3, wherein the data acquisition module 8-1 and the signal transmitter 8-3 are both connected with the data processing module 8-1, the depth sensor 6 and the main sensor 7 are both connected with the data acquisition module 8-1, and the signal transmitter 8-3 is in matched butt joint with the signal receiver 2;

the device adopts the technical scheme that a main sensor 7 and a depth sensor 6 are arranged at a measuring position 5 in a certain height range, so that the height change of a concrete surface in the measuring position 5 is detected in multiple points, and the pump discharge amount of the concrete supply device 1 is controlled in real time by combining a control terminal 8 and a flow control valve 3, so that the purpose that the pump discharge amount of the concrete supply device 1 is smaller as the elevation position is closer is achieved;

the control terminal is also arranged on a buzzer for alarming, and buzzes to warn and remind when the concrete surface rises to a preset target position or elevation position;

the depth sensor 6 is composed of a plurality of pairs of electrode groups 6-1 which are arranged from top to bottom, each pair of electrode groups 6-1 is arranged according to a preset interval, the electrode group 6-1 arranged at the lowest part of the depth sensor 6 is positioned at a preset target position 5-1, the electrode group 6-1 comprises a left electrode valve 6-1-1 and a right electrode valve 6-1-2, and each of the left electrode valve 6-1-1 and the right electrode valve 6-1-2 can measure the resistance value of the environment medium in which the electrode group is positioned;

The device further comprises a cloud server 9 and a mobile terminal 10, wherein the control terminal 8 and the mobile terminal 10 are both in wired and/or wireless connection with the cloud server 9, the control terminal 8 can also be directly connected with the mobile terminal 10 in a wireless mode, and the mobile terminal 10 can be connected with the signal receiver 2 in a wired and/or wireless mode to control the concrete pumping quantity of the flow control valve 3;

the depth sensor 6 and the main sensor 7 are both connected with the control terminal 8 through cables, the depth sensor 6 and the main sensor 7 are both suspended or fixed on the measuring position 5 through cables, in addition, the main sensor 7 is of an overall oval structure, the cables are prevented from being broken, and the oval structure is not easy to be attached by mud and concrete, so that the measuring accuracy of the depth sensor 6 and the main sensor 7 is influenced;

a material pipe 11 is arranged at a pump outlet of the concrete supply device 1, and the material pipe 11 extends to the upper part of the pile well 4-1 for pouring during pouring.

A method for controlling the level of concrete pouring from any one of the above methods, comprising the steps of:

s1, measuring a calibration value, namely placing a depth sensor 6 and a main sensor 7 in concrete for measurement, measuring by the depth sensor 6 to obtain a calibration resistance value in the concrete, measuring by the main sensor 7 to obtain a calibration temperature value, a calibration salinity value and a calibration dielectric constant value of the concrete, and sending the calibration value to a control terminal 8 through a cable;

S2, putting a sensor, namely, hanging or fixing a depth sensor 6 and a main sensor 7 at a measuring position 5 through a cable, measuring the resistance value of a medium at a corresponding position of each electrode valve in the depth sensor 6 in real time, measuring a temperature value, a salinity value and a dielectric constant value in real time by the main sensor 7, and transmitting a data set obtained by measurement at the same time to a control terminal 8 in real time;

s3, the control terminal 8 compares the resistance measurement value of the left electrode valve positioned at the lowest part of the depth sensor 6 with the calibration resistance value, wherein if the resistance measurement value is in the range of 0% -80% of the calibration resistance value, the step S4 is carried out; if the resistance measurement value is 81% -100% of the calibration resistance value, the step S5 is entered;

s4, the control terminal 8 does not send control information, the flow control valve 3 continues to pour concrete into the pile well according to the current concrete pumping quantity, and the step S3 is returned;

s5, the control terminal 8 sends control information to the flow control valve 3, and the flow control valve 3 starts to gradually reduce the concrete pumping quantity; meanwhile, the control terminal 8 obtains the rising position of the concrete surface in the pile well 4-1 through analyzing by comparing with each group of electrode valves of the depth sensor 6;

s6, when the control terminal 8 obtains that the concrete surface in the pile well 4-1 reaches the elevation level 5-2 through calculation of the depth sensor 6, the measured value of the main sensor 7 located at the elevation level 5-2 is within 90% -100% of the corresponding calibration value, the control terminal 8 sends a stop command to the flow control valve 3, the flow control valve 3 is closed, and the concrete supply device 1 stops concrete pouring work;

S7, pulling the material pipe 11 out of the pile well 4-1, enabling concrete in the material pipe 11 to fall into the pile well 4-1, and measuring the actual height of the concrete surface in the pile well by the control terminal 8 through the depth sensor 6 to obtain the actual elevation 5-3;

in step S5, the specific method for the control terminal 8 to obtain the concrete surface elevation position in the pile well 4-1 in real time by comparing the electrode valves of the depth sensor 6 includes:

s51, when the concrete surface reaches a preset target position 5-1, taking the left electrode valve 6-1-1 at the preset target position 5-1 as a reference electrode, comparing the reference electrode with the right electrode valve 6-1-2 in the same group and the measured values of the other left electrode valves 6-1-1 and the right electrode valves 6-1-2 positioned above the reference electrode to obtain a resistance difference matrix, then obtaining a resistivity profile of the depth sensor 6 through calculation on the resistance difference matrix, and then reading the resistivity profile through equipotential drawing software to obtain the height position of the concrete surface;

the method specifically comprises the following steps: forming a coordinate system according to the position of the electrode valve, wherein the position of the electrode valve is a first quadrant of the coordinate system, a y coordinate is determined according to the distance between the upper electrode and the lower electrode, the coordinate of the reference electrode 6-1-1 is (1, 0), the coordinate of the upper left electrode valve 6-1-2 is (1,0.1), the coordinate of the left electrode valve 6-1-1 is (2,0), and so on, forming an electrode valve coordinate matrix, and forming a depth profile resistance difference matrix corresponding to the resistance difference of each electrode:

Then calculating a resistance difference matrix, obtaining a resistivity profile of the depth sensor 6 by a bilinear interpolation method, and reading the resistivity profile by equipotential drawing software to obtain the height position of the concrete surface, as shown in FIG. 4;

bilinear interpolation mode: the requirement p is (x, y), and its vicinity is known as F11 (x1, y1), F12 (x1, y2), F21 (x2, y1) and F22 (x2, y2) four-point values, interpolated in the x direction:

interpolation in the y direction:

the f (x, y) results are thus obtained:

s52, the concrete surface continues to rise, when the concrete liquid level reaches a group of electrode valves adjacent to a preset target position 5-1, the concrete liquid level is moved upwards to a new left electrode valve 6-1-1 to serve as a new reference electrode, then the new left electrode valve 6-1-1 is compared with the right electrode valve 6-1-2 of the same group of the new reference electrode and the measured values of the left electrode valve 6-1-1 and the right electrode valve 6-1-2 of other groups positioned above the new reference electrode to obtain a new group of resistance difference matrix, then the resistance difference matrix is calculated to obtain a resistivity profile of the depth sensor 6, and the resistivity profile is read in real time through equipotential drawing software to obtain the height position of the concrete surface as shown in the figure 5;

because the concrete surface rises fast, in order to guarantee the measuring accuracy of the depth sensor 6 and the main sensor 7, the depth sensor 6 and the main sensor 7 respectively detect each item of data of the located medium for 2-5 times per second, so that the concrete surface in the measuring position 5 is accurately monitored, and the excessive irrigation caused by monitoring leakage is avoided;

In addition, the data acquisition module 8-1 receives various groups of data measured by the depth sensor 6 and the main sensor 7 in real time, the data processing module 8-2 analyzes and processes the various groups of data to obtain the concrete surface ascending condition in the pile well 4-1, and then the control command is used for gradually reducing the pumping quantity of the concrete through the signal transmitter 8-3 and the signal receiver 2 to control the flow control valve 3 according to the preset deceleration; meanwhile, the data processing module 8-2 sends each group of data and processing results to the cloud server 9 in real time through the signal transmitter 8-3, so that remote monitoring of technicians can be achieved, the mobile terminal 10 obtains the pouring progress in real time through the mobile cloud server 9, the mobile terminal can directly control the flow control valve 3 to work, and the technicians can remotely control the pumping quantity of the concrete through the mobile terminal 10.

The working principle is as follows: when a concrete pile needs to be poured, a discharge port of a concrete supply device 1 is connected into a pile well 4-1 through a material pipe 11, a flow control valve 3 capable of controlling the concrete pumping quantity is arranged at the discharge port, pouring is started according to the preset pumping quantity when pouring is started, when the concrete surface rises to a preset target position 5-1, a buzzer sounds to indicate that the concrete surface in the pile well 4-1 starts to enter a measuring position 5, meanwhile, the flow control valve 3 starts to gradually reduce the concrete pumping quantity according to the preset deceleration until the concrete surface rises to an elevation position 5-2, at the moment, a main sensor 7 also detects concrete media which are close to a calibrated temperature value, a calibrated salinity value and a calibrated dielectric value, an auxiliary depth sensor 6 lifts the concrete surface to reach the accuracy of the elevation position, when the concrete surface reaches the elevation position 5-2, the flow control valve 3 stops pouring concrete, and before the concrete pump output of the flow control valve 3 is gradually reduced by the preset minimum amount, so that the valve can be immediately closed when the concrete pouring is stopped, and the over-pouring is avoided; and finally, taking out the material pipe 11 extending into the pile well 4-1, wherein the concrete surface in the pile well 4-1 can be continuously raised to an actual elevation position 5-3 due to the redundant concrete in the material pipe 11, and the height of the actual elevation of the calculated concrete can be monitored in real time through the depth sensor 6.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.