A leveling measurement position reminder device

Abstract

The present invention discloses a level measurement position reminder device, which relates to the technical field of level measurement. The device discloses a level instrument body, and a control reminder is provided on the level instrument body. The control reminder includes a level instrument station setting module, a stadia adjustment module, and a control reminder module. By setting the level instrument station setting module of the control reminder, it is possible to deeply analyze the station setting position and the station setting process of the level instrument before level measurement, effectively determine the reasonable station setting position of the level instrument, and ensure the accurate measurement of the subsequent level instrument. By setting the stadia adjustment module of the control reminder, through the comprehensive analysis of the sum of the backsight distance of the level instrument and the designed stadia of the preset measurement level, it can efficiently determine whether the current level measurement accuracy needs to be adjusted, and ensure the subsequent level measurement accuracy through the combination of two adjustment methods.

Description

Technical Field

[0001] The present invention relates to the technical field of leveling surveying, and more specifically, it relates to a leveling surveying position reminder device. Background Art

[0002] A level is an instrument for establishing a horizontal line of sight to measure the height difference between two points on the ground. The principle is to measure the height difference between ground points according to the leveling surveying principle. Currently, before measurement, manual adjustment of the positions of the instrument body, the front rod, and the rear rod is required. The efficiency of manual adjustment is not high, and at the same time, the adjustment accuracy cannot be guaranteed. How to effectively remind the position and assist in adjustment during the position adjustment of the instrument body, the front rod, and the rear rod is an urgent problem to be solved currently. Summary of the Invention

[0003] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a leveling surveying position reminder device.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A leveling surveying position reminder device includes a level instrument body, and a control reminder is arranged on the level instrument body. The control reminder includes a level instrument station setting module, a stadia adjustment module, and a control reminder module;

[0006] The level instrument station setting module is used to adjust the level instrument body to a preset measurement level, and control the level of the level instrument body and the front rod to move forward synchronously, and determine the station setting position of the level instrument based on the comparison result between the station setting value and its threshold value;

[0007] After the level instrument is station set, the stadia adjustment module obtains the back sight distance of the level instrument and the designed stadia distance S of the preset measurement level 设 , determines whether to send a reminder signal based on the comparison result between the back sight distance and the designed stadia distance S 设 , obtains the backward movement analysis value of the level instrument based on the reminder signal, and adjusts the position or the preset measurement level of the level instrument based on the comparison result between the backward movement analysis value and its threshold value;

[0008] The control reminder module is used to control the front rod to continue moving forward, obtain the difference △S between the front sight distance and the back sight distance of the level instrument and the designed difference △S between the front sight distance and the back sight distance of the preset measurement level 设 , reminds the front rod based on the comparison result between the difference △ between the front sight distance and the back sight distance and the designed difference △S between the front sight distance and the back sight distance 设 , and adjusts the position of the front rod.

[0009] Further, control the level of the level instrument body to move forward synchronously with the front rod, and determine the setup position of the level based on the comparison result between the setup value and its threshold value. Specifically: after the rear rod of the level instrument body is fixed, control the level of the level instrument body to move forward synchronously with the front rod, where the moving speeds of the level and the front rod are the same;

[0010] During the movement of the level, generate a setup analysis record of the level every e time period, obtain the setup value according to the setup analysis record, set the setup threshold value. When the setup value is greater than or equal to the setup threshold value, set up the level at the current position. When the setup value is less than the setup threshold value, the level continues to move.

[0011] Further, the setup analysis record includes the setup analysis time, the jitter frequency, and the angle change value.

[0012] Further, the jitter frequency of the setup analysis record is obtained through the following method: obtain the jitter amplitude of the level in the e time period in real time, set the preset jitter amplitude. When the jitter amplitude of the level is greater than or equal to the preset jitter amplitude, increase the jitter count by one, and mark the current time as the jitter moment. Sum up the jitter counts of the level in the e time period to obtain the total jitter count of the setup analysis record, and mark it as DBS. Sort all the jitter moments of the level in the e time period in chronological order, calculate the time difference between two adjacent jitter moments after sorting to obtain the jitter interval, sum up all the jitter intervals and take the average value to obtain the average jitter interval, and mark it as JGP. Use the formula to obtain the jitter frequency PCL of the setup analysis record, where a1 is the total jitter count coefficient and a2 is the average jitter interval coefficient.

[0013] Further, the angle change value of the setup analysis record is obtained through the following method: obtain the measured angle of the level in the e time period in real time, set the measured high angle and the measured low angle. When the measured angle is greater than the measured high angle, mark the type of the measured angle as the measured upper angle type. When the measured angle is less than the measured high angle, mark the type of the measured angle as the measured lower angle type. When the measured angle is between the measured high angle and the measured low angle, mark the type of the measured angle as the measured flat angle type. Obtain the total number of angle changes FYK and the average flat angle measurement interval SRT. Use the formula to obtain the angle change value BZJ of the setup analysis record, where b1 is the total number of angle change coefficient and b2 is the average flat angle measurement interval coefficient.

[0014] Further, the total number of angle changes is obtained in the following manner: Sort all the measured angles in the order of measurement time. Compare the types of two adjacent measured angles after sorting. When the types of two adjacent measured angles are different, increase the number of angle changes by one. Sum up the number of angle changes of the level instrument within the duration e to obtain the total number of angle changes, which is marked as FYK.

[0015] Further, the average interval of flat angle measurement is obtained in the following manner: Obtain the corresponding measurement time of the measured angle of the flat angle measurement type and mark it as the flat angle measurement time. Sort all the flat angle measurement times in the order of time. Calculate the time difference between two adjacent flat angle measurement times after sorting to obtain the flat angle measurement interval. Sum up all the flat angle measurement intervals and take the average value to obtain the average interval of flat angle measurement, which is marked as SRT.

[0016] Further, the setup value is obtained in the following manner: Obtain the jitter frequency PCL and the angle variation value BZJ recorded in the setup analysis. Use the formula to obtain the setup value JZZ, where c1 is the jitter frequency coefficient and c2 is the angle variation value coefficient.

[0017] Further, determine whether to send a reminder signal according to the comparison result between the backsight distance and the designed sight distance S 设 , and obtain the backward movement analysis value of the level instrument based on the reminder signal. Adjust the position or the preset measurement level of the level instrument based on the comparison result between the backward movement analysis value and its threshold value. Specifically: Obtain the backsight distance of the level instrument and mark it as S 后 , obtain the designed sight distance S of the preset measurement level 设 . When the backsight distance S 后 > the designed sight distance S 设 , the level instrument sends a reminder signal. Obtain the backward movement analysis value of the level instrument. Set the backward movement analysis threshold value. When the backward movement analysis value is greater than or equal to the backward movement analysis threshold value, calculate the difference between the backsight distance S 后 and the designed sight distance S 设 to obtain the sight distance adjustment distance. The level instrument moves backward by the sight distance adjustment distance. When the backward movement analysis value is less than the backward movement analysis threshold value, adjust the preset measurement level of the level instrument until the designed sight distance S 设 ≥ the backsight distance S 后 ;

[0018] When the backsight distance S 后 ≤ the designed sight distance S 设 , no corresponding treatment is performed;

[0019] The backward movement analysis value of the level is obtained in the following way: Obtain all the setup analysis records of the level before the current time, obtain the setup values of the setup analysis records, sum up and average the setup values of all the setup analysis records to obtain the average setup value, which is marked as MSD. Sort all the setup analysis records in the order of the setup analysis time, calculate the difference between two adjacent setup values after sorting and take the absolute value to obtain the setup difference. Set the setup difference threshold. When the setup difference is greater than or equal to the setup difference threshold, increase the setup deviation count by one. Sum up the setup deviation counts of the level before the current time of the system to obtain the total setup deviation count, which is marked as SCJ. Use the formula to obtain the backward movement analysis value FSW of the level, where d1 is the average setup value coefficient and d2 is the total setup deviation count coefficient.

[0020] Furthermore, obtain the difference in sight distances △S between the front and rear sights of the level and the designed sight distance △S 设 of the preset measurement level. Based on the comparison result between the difference in sight distances △ and the designed sight distance △S 设 give a reminder to the front staff and adjust the position of the front staff. Specifically: Control the front staff to continue moving forward, and obtain the difference in sight distances △S between the front and rear sights of the level in real time. When the difference in sight distances △S > 0, the level sends a voice reminder of "advance sight distance △Sm" to the front staff, and control the front staff to advance by △S. When the difference in sight distances △S ≤ the designed sight distance △S 设 , the level gives a reminder to stop the front staff from moving forward and control the front staff to stand still;

[0021] After the front staff stands still, calculate the distance W between the front and rear staffs and the height difference △H between the front and rear staffs, obtain the staff length L. When the height difference △H between the front and rear staffs > the staff length L - 30 cm, give a reminder of advancing X to the front staff, where X = 3 * W * (L - 0.3) / 2 * △H.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention can deeply analyze the setup position and setup process of the level before leveling measurement by setting up the level setup module of the control reminder, effectively determine the reasonable setup position of the level, and ensure the accurate measurement of the subsequent level.

[0024] 2. The present invention sets up the sight distance adjustment module of the control reminder. By comprehensively analyzing the rear sight distance of the level and the designed sight distance of the preset measurement level, it can efficiently determine whether the current leveling measurement accuracy needs to be adjusted, and ensure the subsequent leveling measurement accuracy through the combination of two adjustment methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a flow chart for determining the setup position of the level;

[0026] Figure 2 It is a flowchart for adjusting the position of the level or the preset measurement level. Specific implementation manner

[0027] Refer to Figures 1 to 2

[0028] A level measurement position reminder device includes a level instrument body, and a control reminder is arranged on the level instrument body. The control reminder includes a level instrument station setup module, a stadia adjustment module, and a control reminder module.

[0029] The level instrument body includes a level instrument, a front leveling staff, and a rear leveling staff. Among them, the installation heights of the front leveling staff and the rear leveling staff need to be the same, and both the front leveling staff and the rear leveling staff are leveling rods.

[0030] The level instrument station setup module adjusts the level instrument body to a preset measurement level (the preset measurement level is the initial measurement level of the level instrument body, and each measurement level corresponds to a designed sight distance S 设 and a designed sight distance difference △S 设 ).

[0031] Fix the rear leveling staff of the level instrument body. After the rear leveling staff of the level instrument body is fixed, control the level instrument of the level instrument body and the front leveling staff to move forward synchronously, where the moving speeds of the level instrument and the front leveling staff are the same.

[0032] During the movement of the level instrument, a station setup analysis record of the level instrument is generated every e time period. The station setup analysis record includes the station setup analysis time (the generation time of the station setup analysis record), the jolt frequency, and the angle variation value. Obtain the station setup value according to the station setup analysis record, set the station setup threshold. The station setup threshold is a system-set threshold and can be adjusted and modified according to actual needs. When the station setup value is greater than or equal to the station setup threshold, set up the level instrument at the current position. When the station setup value is less than the station setup threshold, the level instrument continues to move.

[0033] The jolt frequency of the station setup analysis record is obtained through the following method: Obtain the jolt amplitude of the level instrument in the e time period in real time, set a preset jolt amplitude. The preset jolt amplitude is a preset amplitude and can be adjusted and modified according to actual needs. When the jolt amplitude of the level instrument is greater than or equal to the preset jolt amplitude, increase the jolt count by one and mark the current time as the jolt moment. When the jolt amplitude of the level instrument is less than the preset jolt amplitude, no corresponding processing is done. Sum up the jolt counts of the level instrument in the e time period to obtain the total jolt count of the station setup analysis record and mark it as DBS. Sort all the jolt moments of the level instrument in the e time period in chronological order, calculate the time difference between two adjacent jolt moments after sorting to obtain the jolt interval. Sum up all the jolt intervals and take the average value to obtain the average jolt interval and mark it as JGP. Use the formula Obtain the jitter frequency PCL of the station setup analysis record. Among them, a1 is the total number of jitter coefficient, a2 is the average jitter interval coefficient. The value of a1 is 0.71, and the value of a2 is 0.79.

[0034] The angular variation value of the station setup analysis record is obtained in the following way: Real-time obtain the measured angle of the level during the duration e (the measured angle is the included angle degree formed between the level and the horizontal plane), set the measured high angle and the measured low angle. Both the measured high angle and the measured low angle are preset angles, which can be adjusted and modified according to actual needs. When the measured angle is greater than the measured high angle, mark the type of this measured angle as the measured upper angle type. When the measured angle is less than the measured high angle, mark the type of this measured angle as the measured lower angle type. When the measured angle is between the measured high angle and the measured low angle, mark the type of this measured angle as the measured flat angle type. Sort all the measured angles in the order of measurement time, compare the types of two adjacent measured angles after sorting. When the types of two adjacent measured angles are different, increase the number of angle changes by one. When the types of two adjacent measured angles are the same, do not make corresponding processing. Sum up the number of angle changes of the level during the duration e to obtain the total number of angle changes, and mark it as FYK. Obtain the corresponding measurement time of the measured flat angle type measured angle, and mark it as the flat angle measurement time. Sort all the flat angle measurement times in the order of time, calculate the time difference between two adjacent flat angle measurement times after sorting to obtain the flat angle measurement interval. Sum up all the flat angle measurement intervals and take the average value to obtain the average flat angle measurement interval, and mark it as SRT. Use the formula Obtain the angular variation value BZJ of the station setup analysis record. Among them, b1 is the total number of angle change coefficient, b2 is the average flat angle measurement interval coefficient. The value of b1 is 0.53, and the value of b2 is 0.69.

[0035] The station setup value is obtained in the following way: Obtain the jitter frequency PCL and the angular variation value BZJ of the station setup analysis record, and use the formula Obtain the station setup value JZZ. Among them, c1 is the jitter frequency coefficient, c2 is the angular variation value coefficient. The value of c1 is 0.46, and the value of c2 is 0.51.

[0036] Set up a level station setup module, which can deeply analyze the station setup position and the station setup process of the level before performing leveling measurement, effectively determine the reasonable station setup position of the level, and ensure the accurate measurement of the subsequent level.

[0037] Line-of-sight distance adjustment module: After the level is set up, obtain the backsight distance of the level and mark it as S 后 and obtain the designed line-of-sight distance S of the preset measurement level 设 When the backsight distance S后 > Design sight distance S 设 When it is, the level sends a reminder signal, obtains the backward movement analysis value of the level, sets the backward movement analysis threshold. The backward movement analysis threshold is the system set threshold and can be modified according to actual needs. When the backward movement analysis value is greater than or equal to the backward movement analysis threshold, the back sight distance S 后 and the design sight distance S 设 are used for difference calculation to obtain the sight distance adjustment distance. The level moves backward by the sight distance adjustment distance. When the backward movement analysis value is less than the backward movement analysis threshold, the preset measurement level of the level is adjusted until the design sight distance S of the preset measurement level 设 ≥ Back sight distance S 后 When the back sight distance S 后 ≤ Design sight distance S 设 no corresponding treatment is performed.

[0038] The backward movement analysis value of the level is obtained through the following method: Obtain all the station setup analysis records of the level before the current time, obtain the station setup values of the station setup analysis records, sum up and take the average value of the station setup values of all the station setup analysis records to obtain the average station setup value, which is marked as MSD. Sort all the station setup analysis records in the order of the station setup analysis time, calculate the difference between the adjacent two station setup values after sorting and take the absolute value to obtain the station setup difference. Set the station setup difference threshold. The station setup difference threshold is the system set threshold and can be adjusted and modified according to actual needs. When the station setup difference is greater than or equal to the station setup difference threshold, increase the station setup deviation times by one. When the station setup difference is less than the station setup difference threshold, no corresponding treatment is performed. Sum up the station setup deviation times of the level before the current time of the system to obtain the total station setup deviation times, which is marked as SCJ. Use the formula to obtain the backward movement analysis value FSW of the level, where d1 is the average station setup value coefficient, d2 is the total station setup deviation times coefficient, the value of d1 is 3.85, and the value of d2 is 1.23.

[0039] Set up a sight distance adjustment module. By comprehensively analyzing the sum of the back sight distance of the level and the design sight distance of the preset measurement level, it can efficiently determine whether the current level measurement accuracy needs to be adjusted, and ensure the subsequent level measurement accuracy through the combination of two adjustment methods.

[0040] Control reminder module: Control the front rod to continue moving forward, and obtain the front and back sight distance difference △S of the level in real time. When the current front and back sight distance difference △S > 0, control the front rod to move forward by △S (the level sends a voice reminder of "move forward the sight distance difference △Sm" to the front rod, and the forward movement is relative to the level). When the current front and back sight distance difference △S ≤ the design sight distance difference △S 设 stop the front rod from moving forward (the level sends a voice reminder of "stop the front rod from moving forward").

[0041] After the front rod is fixed in place, calculate the distance W between the front and rear rods and the height difference ΔH between the front and rear rods, and obtain the rod lengths L (the rod lengths of the front and rear rods). When the height difference ΔH between the front and rear rods > the rod length L - 30 cm, send a reminder to the front rod to move forward by X (it is also possible to "click" the voice transmission button of the front rod on the display for manual voice reminder), and the level adjusts its position according to the difference in the distances to the front and rear sights.

[0042] After the measurement of the first station is completed, switch the front and rear rods on the level device, with the front rod becoming the rear rod and the rear rod becoming the front rod; X = 3 * W * (L - 0.3) / 2 * ΔH, and repeat the above steps until the measurement section ends.

[0043] The above formulas are all dimensionless and take their numerical values for calculation. The formulas are obtained by collecting a large amount of data for software simulation to obtain a formula that is closest to the actual situation. The preset parameters in the formulas are set by those skilled in the art according to the actual situation.

[0044] The above embodiments can be implemented in whole or in part by software, hardware, firmware, or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wired or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that the computer can access, or a data storage device such as a server or data center that contains one or more collections of available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state drive.

[0045] It should be understood that in various embodiments of the present application, the magnitudes of the sequence numbers of the above processes do not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0046] Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of this application.

[0047] Those skilled in the art can clearly understand that for the convenience and conciseness of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0048] In several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0049] If the functions are implemented in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0050] The above is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application, and all should be covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A level measurement position reminder device, characterized in that: It includes a level body, on which a control reminder is arranged, and the control reminder includes a level stand module, a sight distance adjustment module, and a control reminder module; The leveling instrument stationing module is used to adjust the leveling instrument body to a preset measurement level, and control the leveling instrument and the front ruler of the leveling instrument body to move forward synchronously, and determine the stationing position of the leveling instrument based on the comparison result of the stationing value and its threshold value; The station value is obtained by the following method: Get the bump frequency PCL and angle change value BZJ recorded in the station analysis, and use the formula The station value JZZ is obtained, where c1 is the turbulence frequency coefficient and c2 is the angle variation coefficient; After the level is set up, the sight distance adjustment module obtains the back sight distance of the level and the design sight distance S of the preset measurement level. 设 , according to the rear sight distance and the design sight distance S 设 Determine whether to issue a reminder signal based on the comparison result of the back movement analysis value and the threshold value, and adjust the position of the level or the preset measurement level based on the comparison result of the back movement analysis value and the threshold value; The back movement analysis value of the level is obtained in the following way: obtain all the station analysis records of the level before the current time, obtain the station value of the station analysis record, sum up the station values ​​of all the station analysis records and take the average to obtain the average station value, and mark it as MSD, sort all the station analysis records in the order of station analysis time, calculate the difference between the two adjacent station values ​​after sorting and take the absolute value to obtain the station difference, set the station difference threshold, when the station difference is greater than or equal to the station difference threshold, increase the number of station deviations by one, sum up the number of station deviations of the level before the current time of the system, obtain the total number of station deviations, and mark it as SCJ, and use the formula The back movement analysis value FSW of the level is obtained, where d1 is the average station value coefficient and d2 is the total number of station deviation coefficient; The control reminder module is used to control the front ruler to continue to move forward, and obtain the front and rear sight distance difference △S of the level and the design sight distance difference △S of the preset measurement level. 设 , based on the front and rear sight distance difference △ and the design sight distance difference △S 设 The comparison result reminds the front ruler and adjusts the position of the front ruler.

2. A level measurement position reminder device according to claim 1, characterized in that: The level and the front scale of the level body are controlled to move forward synchronously, and the mounting position of the level is determined based on the comparison result of the mounting value and its threshold value, specifically: after the rear scale of the level body is fixed, the level and the front scale of the level body are controlled to move forward synchronously, wherein the movement speed of the level and the front scale is the same; During the movement of the level instrument, a station setting analysis record of the level instrument is generated every e time. The station setting value is obtained according to the station setting analysis record, and the station setting threshold is set. When the station setting value is greater than or equal to the station setting threshold, the level instrument is set at the current position. When the station setting value is less than the station setting threshold, the level instrument continues to move.

3. A level measurement position reminder device according to claim 2, characterized in that: The station analysis record includes the station analysis time, bump frequency, and angle change.

4. A level measurement position reminder device according to claim 3, characterized in that: The turbulence frequency recorded by the station analysis is obtained in the following way: obtain the turbulence amplitude of the level within the time length e in real time, set the preset turbulence amplitude, when the turbulence amplitude of the level is greater than or equal to the preset turbulence amplitude, increase the turbulence times by one, and mark the current time as the turbulence moment, sum the turbulence times of the level within the time length e, obtain the total turbulence times recorded by the station analysis, and mark it as DBS, sort all the turbulence moments of the level within the time length e in chronological order, calculate the time difference between the two adjacent turbulence moments after sorting, obtain the turbulence interval, sum all the turbulence intervals and take the average, obtain the average turbulence interval, and mark it as JGP, and use the formula The turbulence frequency PCL recorded by the station analysis is obtained, where a1 is the total turbulence coefficient and a2 is the average turbulence interval coefficient.

5. A level measurement position reminder device according to claim 3, characterized in that: The angle variation recorded in the station analysis is obtained in the following way: obtain the measurement angle of the level in time e in real time, set the measurement high angle and measurement low angle, when the measurement angle is greater than the measurement high angle, mark the measurement angle type as the measurement upper angle type, when the measurement angle is less than the measurement high angle, mark the measurement angle type as the measurement lower angle type, when the measurement angle is between the measurement high angle and the measurement low angle, mark the measurement angle type as the measurement flat angle type, obtain the total number of angle changes FYK and the flat angle measurement interval SRT, and use the formula The angle change value BZJ recorded in the station analysis is obtained, where b1 is the total angle change coefficient and b2 is the flat angle measurement interval coefficient.

6. A level measurement position reminder device according to claim 5, characterized in that: The total number of angle changes is obtained in the following way: sort all measured angles in chronological order of measurement time, compare the types of two adjacent measured angles after sorting, increase the number of angle changes by one when the types of two adjacent measured angles are different, sum the number of angle changes of the level within the time length e, obtain the total number of angle changes, and mark it as FYK.

7. A level measurement position reminder device according to claim 5, characterized in that: The flat angle measurement average interval is obtained in the following way: obtain the corresponding measurement time of the flat angle type measurement angle, and mark it as the flat angle measurement time, sort all the flat angle measurement times in chronological order, calculate the time difference between the two adjacent flat angle measurement times after sorting, and obtain the flat angle measurement interval, sum up all the flat angle measurement intervals and take the average value to obtain the flat angle measurement average interval, and mark it as SRT.

8. A level measurement position reminder device according to claim 1, characterized in that: According to the rear sight distance and the design sight distance S 设 The comparison result of the back movement analysis value and the threshold value determines whether to issue a reminder signal, and obtains the back movement analysis value of the level based on the reminder signal, and adjusts the position of the level or the preset measurement level based on the comparison result of the back movement analysis value and its threshold value, specifically: obtain the back sight distance of the level and mark it as S 后 , obtain the design sight distance S of the preset measurement level 设 , when the backsight distance S 后 >Design sight distance S 设 When the back movement analysis value is greater than or equal to the back movement analysis threshold, the back sight distance S is set. 后 With design sight distance S 设 Perform difference calculation to obtain the sight distance adjustment distance, and move the level backward to the sight distance adjustment distance. When the backward analysis value is less than the backward analysis threshold, adjust the preset measurement level of the level until the design sight distance S of the preset measurement level is reached. 设 ≥ Rear sight distance S 后 ; When the rear sight distance S 后 ≤ Design sight distance S 设 No corresponding processing is done.

9. A level measurement position reminder device according to claim 1, characterized in that: Obtain the front and rear sight distance difference △S of the level and the design sight distance difference △S of the preset measurement level 设 , based on the front and rear sight distance difference △ and the design sight distance difference △S 设 The comparison result reminds the front ruler and adjusts the position of the front ruler. Specifically, the front ruler is controlled to continue to move forward, and the front and rear sight distance difference △S of the level is obtained in real time. When the front and rear sight distance difference △S>0, the level sends a voice reminder of "forward sight distance difference △Sm" to the front ruler, and the front ruler is controlled to move forward △S. The current rear sight distance difference △S≤the designed sight distance difference △S 设 When the level gauge stops the front ruler from moving forward, the front ruler is controlled to stand still. After the front ruler is fixed, calculate the distance W between the front and rear rulers and the height difference △H of the front and rear rulers to obtain the ruler length L. When the height difference △H of the front and rear rulers is greater than the ruler length L-30cm, send a reminder to the front ruler to move forward X, where X=3*W*(L-0.3) / 2*△H.

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