Absolute height level, absolute height level system, and method for using the system

Abstract

The present invention discloses an absolute elevation level, an absolute elevation level system, and a method for using the system, belonging to the field of measurement technology. The system includes a housing and a liquid level sensor, the liquid level sensor being disposed within the housing and separating the housing into an upper housing and a lower housing, the lower housing being used to hold liquid; a reference seat for placing a target ball is disposed on the upper surface of the upper housing; and the lower housing has an air pipe interface and a water pipe interface. The present invention can monitor the settlement and deformation of the monitoring area, and can use the uniform liquid level at a stable moment as a reference, without requiring elevation transmission, and can obtain the absolute elevation of each monitoring point at any time. The system is simple to operate and has high accuracy.

Description

Technical Field

[0001] The present invention belongs to the field of measurement technology, and in particular relates to an absolute height level, an absolute height level system and a method for using the system. Background Art

[0002] The static level system is a precision instrument for measuring the relative elevation changes between two or more points. It measures the height difference between ground points based on the principle of leveling.

[0003] The static leveling system in the prior art is composed of multiple levels. When in use, each level can only measure the height change of the point relative to the reference point. After the static leveling system is stable, a level surface will be formed inside the entire system, but the liquid level is not calibrated. Therefore, the absolute elevation of the top of each bowl cannot be known immediately. If you want to obtain the elevation value of the point, you must perform a transfer measurement, which can easily cause error accumulation, a large workload, and poor accuracy. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An absolute height leveler includes a shell and a liquid level sensing sensor. The liquid level sensing sensor is arranged in the shell and divides the shell into an upper shell and a lower shell. The lower shell is used to place liquid; the upper surface of the upper shell is provided with a reference seat for placing a target ball; the lower shell has an air pipe interface and a water pipe interface.

[0006] Furthermore, the reference seat is a conical spherical seat.

[0007] Furthermore, various types of standard measurement target balls are placed on the reference seat.

[0008] Furthermore, the air pipe interface is arranged at the upper end of the lower shell, and the water pipe interface is arranged at the lower end of the lower shell.

[0009] Furthermore, the number of the trachea interfaces is 2, which are respectively arranged on both sides of the lower shell; the number of the water pipe interfaces is 2, which are arranged corresponding to the trachea interfaces.

[0010] Furthermore, a temperature sensor mounting hole is provided on the lower shell; a circuit board is provided in the upper shell, and wiring holes are provided on the side wall.

[0011] An absolute height level system comprises at least two absolute height levels described in any one of the above items connected in series.

[0012] A method for using an absolute height level system, using the above-mentioned absolute height level system, the method comprises the following steps:

[0013] S10, calibrating each absolute height level;

[0014] S20. Place at least two absolute elevation levels at the monitoring points and connect them in series. After the liquid level reaches a stable state, the absolute elevation of each monitoring point can be obtained.

[0015] Furthermore, the method for calibrating each absolute height level in step S10 is:

[0016] S11. Level the absolute height level;

[0017] S12. Add liquid within the measuring range of the liquid level sensor into the lower housing to accurately calibrate the distance MD between the liquid level in the lower housing and the center of the target sphere located on the reference surface outside the upper housing. Simultaneously, obtain the height M of the liquid level in the lower housing through the liquid level sensor. The distance from the zero position of the liquid level sensor to the center of the top target sphere is D = MD - M.

[0018] or

[0019] Accurately calibrate the distance MD between the liquid level in the lower shell and the top of the target ball located on the external reference surface of the upper shell. At the same time, obtain the height M of the liquid level in the lower shell through the liquid level sensing sensor. The distance D from the zero position of the liquid level sensing sensor to the top of the top target ball is MD-M.

[0020] Where D is the absolute calibration value of each absolute height level.

[0021] Furthermore, in step S20, the method for obtaining the absolute elevation of each monitoring point is: if the liquid level after the system liquid level stabilizes at time k is a level surface, H is the absolute elevation of each absolute elevation level, that is, the sum of the sensor reading Mi_k of the i-th absolute elevation level at time k and the absolute calibration value Di of the absolute elevation level, the absolute elevation of the monitoring point is: Hi_k=Mi_k+Di.

[0022] Beneficial effects:

[0023] The absolute elevation level, absolute elevation level system and method for using the system provided by the present invention, through relevant design and calibration, can lead out the liquid level, monitor the settlement deformation of the monitoring area, and can use the unified liquid level at the stable moment as a benchmark. There is no need to measure the elevation transfer, and the absolute elevation of each monitoring point can be obtained at any time. The operation is simple and the accuracy is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention (based on the center of the standard measurement target ball).

[0025] Figure 2The absolute height leveling system is composed of multiple absolute height levelers of the present invention.

[0026] Figure 3 This is a schematic diagram of the overall structure of the present invention (based on the top of the standard measurement target ball)

[0027] Among them, 1. Upper shell; 2. Target ball; 3. Reference seat; 4. Circuit board; 5. Temperature sensor wiring; 6. Liquid level sensor; 7. Air pipe interface; 8. Water pipe interface; 9. Liquid; 10. Temperature sensor mounting hole; 11. Lower shell; 12. Data cable; 13. Liquid level after the system stabilizes. DETAILED DESCRIPTION

[0028] Example 1

[0029] Absolute height level (such as Figure 1 ), including a shell and a liquid level sensing sensor 6, the liquid level sensing sensor 6 is arranged in the shell, and the shell is divided into an upper shell 1 and a lower shell 11, the lower shell 11 is used to place the liquid 9; the upper surface of the upper shell 1 is provided with a reference seat 3 for placing the target ball 2; the lower shell 11 has an air pipe interface 7 and a water pipe interface 8.

[0030] In this embodiment, the reference seat 3 is a conical spherical seat, wherein various types of standard measurement target balls 2 can be placed on the reference seat 3 .

[0031] In this embodiment, the air pipe interface 7 is provided at the upper end of the lower shell 11 , and the water pipe interface 8 is provided at the lower end of the lower shell 11 .

[0032] There are two air pipe interfaces 7 , which are respectively arranged on both sides of the lower shell 11 ; there are two water pipe interfaces 8 , which are arranged corresponding to the air pipe interfaces 7 .

[0033] In this embodiment, a temperature sensor mounting hole 10 is provided on the lower shell 11; a circuit board 4 is provided in the upper shell 1, and a wiring hole is provided on the side wall. The wiring hole is used to pass the temperature sensor wiring 5 and the data line 12. The temperature sensor wiring 5, the data line 12, and the liquid level sensing sensor 6 are all electrically connected to the circuit board 4.

[0034] Example 2

[0035] This embodiment is a system where multiple absolute height levelers provided in Example 1 are placed at monitoring points and connected in series to form an absolute height leveler system (e.g. Figure 2 ), after the liquid level reaches stability, the absolute elevation of each monitoring point can be obtained. Among them, the air pipe interface 7 and the water pipe interface 8 on one absolute elevation level are connected to the air pipe interface 7 and the water pipe interface 8 on another absolute elevation level through the gas connecting pipe and the liquid connecting pipe 9 respectively.

[0036] Example 3

[0037] A method for using an absolute height level system, using the absolute height level system provided in Example 2, comprises the following steps:

[0038] S10, calibrating each absolute height level;

[0039] The method for calibrating each absolute height level is as follows:

[0040] S11. Level the absolute height level;

[0041] S12. Add liquid 9 within the measuring range of the liquid level sensor 6 into the lower shell 11, accurately calibrate the distance MD between the liquid level in the lower shell 11 and the center of the target ball 2 located on the external reference surface of the upper shell 1, and at the same time obtain the height M of the liquid level in the lower shell 11 through the liquid level sensor 6. The distance D between the zero position of the liquid level sensor 6 and the center of the top target ball 2 is D=MD-M (as shown in FIG. Figure 1 );

[0042] or

[0043] Accurately calibrate the distance MD between the liquid level in the lower shell 11 and the top of the target ball 2 located on the external reference surface of the upper shell 1, and at the same time obtain the height M of the liquid level in the lower shell through the liquid level sensing sensor 6. The distance D between the zero position of the liquid level sensing sensor 6 and the top of the target ball 2 is D=MD-M (as shown in the figure). Figure 3 );

[0044] Where D is the absolute calibration value of each absolute height level.

[0045] S20. Connect the absolute height levels in series in sequence. After the liquid level reaches a stable state, the absolute height of each monitoring point can be obtained.

[0046] In this embodiment, the method for obtaining the absolute elevation of each monitoring point is: if the liquid surface 13 after the system liquid level stabilizes at time k is a level surface, H is the absolute elevation of each absolute elevation level, that is, the sum of the sensor reading Mi_k of the i-th absolute elevation level at time k and the absolute calibration value Di of the absolute elevation level, the absolute elevation of the monitoring point is: Hi_k=Mi_k+Di.

[0047] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. Absolute height level, characterized by: The liquid level sensor comprises a housing and a liquid level sensing sensor. The liquid level sensing sensor is disposed within the housing, and the housing is divided into an upper housing and a lower housing. The lower housing is used to store liquid. A reference seat for placing a target ball is provided on the upper surface of the upper housing. The lower housing has an air pipe interface and a water pipe interface. The reference seat is a conical ball seat, on which various standard measurement target balls are placed. An absolute height level system comprising at least two of the absolute height levels connected in series; A method for using an absolute height level system, using the absolute height level system, the method comprises the following steps: S10, calibrating each absolute height level; The method for calibrating each absolute height level is: S11. Level the absolute height level; S12. Add liquid within the measuring range of the liquid level sensor into the lower housing to accurately calibrate the distance MD between the liquid level in the lower housing and the center of the target sphere located on the reference surface outside the upper housing. Simultaneously, obtain the height M of the liquid level in the lower housing through the liquid level sensor. The distance from the zero position of the liquid level sensor to the center of the top target sphere is D = MD - M. or Accurately calibrate the distance MD between the liquid level in the lower shell and the top of the target ball located on the external reference surface of the upper shell. At the same time, obtain the height M of the liquid level in the lower shell through the liquid level sensing sensor. The distance D from the zero position of the liquid level sensing sensor to the top of the top target ball is MD-M. Where D is the absolute calibration value of each absolute height level; S20, placing at least two absolute elevation levels at monitoring points and connecting them in series. After the liquid level reaches a stable state, the absolute elevation of each monitoring point can be obtained. The method for obtaining the absolute elevation of each monitoring point is: if the liquid level after the system liquid level stabilizes at time k is a level surface, H is the absolute elevation of each absolute elevation level under this liquid level, that is, the sum of the sensor reading Mi_k of the i-th absolute elevation level at time k and the absolute calibration value Di of the absolute elevation level. The absolute elevation of the monitoring point is: Hi_k=Mi_k+Di.

2. The absolute height level according to claim 1, characterized in that: The air pipe interface is arranged at the upper end of the lower shell, and the water pipe interface is arranged at the lower end of the lower shell.

3. The absolute height level according to claim 2, characterized in that: There are two air pipe interfaces, which are respectively arranged on both sides of the lower shell; there are two water pipe interfaces, which are arranged corresponding to the air pipe interfaces.

4. The absolute height level according to claim 1, characterized in that: The lower shell is provided with a temperature sensor mounting hole; the upper shell is provided with a circuit board, and the side wall is provided with a wiring hole.

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