Method and system for determining water level elevation based on telemetry data without scaled water level gauge

Abstract

The present invention discloses a method and system for determining water level elevation based on telemetry data under a scaleless water level gauge, wherein the method includes the following steps: setting a starting zero point for telemetry, obtaining telemetry data of the starting zero point, and obtaining position data on the water level gauge corresponding to the starting zero point; setting a reference elevation point on the water level gauge, measuring the elevation data of the reference elevation point, and obtaining reference elevation data; obtaining telemetry data of the current water level, and obtaining change data between the current water level and the starting zero point based on the telemetry data of the starting zero point, and then calculating the current water level elevation data based on the change data, the position data and the reference elevation data. The present invention sets a reference elevation point on the water level gauge, obtains accurate reference elevation data, and standardizes the water level gauge, so that when measuring the current water level, the current water level elevation data is calculated based on the reference elevation data, which can effectively improve the accuracy of water level elevation data measurement compared with the prior art.

Description

Technical Field

[0001] The invention relates to the application field of water conservancy projects, and in particular to a method and system for determining water level elevation based on telemetry data under a scaleless water level gauge. Background Art

[0002] The current water level measurement method usually uses remote sensing, which obtains the water level by observing the height difference between the remote sensing water level gauge and the water surface and combining it with the water level gauge reading of the current water surface. This method has the following defects:

[0003] 1. There are many non-standardized water level gauges. When these water level gauges are erected, the scale values ​​are set based on the assumption of a zero-meter surface, resulting in inconsistent water level data benchmarks obtained through the water level gauges. Water levels between regions are not comparable, and there may even be logical errors in the upstream and downstream water levels.

[0004] 2. As the ground subsides over time, the readings on the standardized vertical water level gauge deviate from the actual 1985 national elevation. The longer the time, the more obvious the subsidence and the greater the deviation, which affects the accuracy of the water level obtained by the water level gauge.

[0005] In summary, the existing technology needs to be further improved. Summary of the invention

[0006] The present invention aims at the shortcomings of the prior art and provides a method and system for determining water level elevation based on telemetry data without a scaled water level gauge.

[0007] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0008] A method for determining water level elevation based on telemetry data without a scaled water level gauge comprises the following steps:

[0009] Setting a zero point for telemetry, obtaining telemetry data of the zero point, and obtaining position data of the zero point on the water level gauge; setting a reference elevation point on the water level gauge, measuring elevation data of the reference elevation point, and obtaining reference elevation data;

[0010] The telemetry data of the current water level is obtained, and the change data between the current water level and the starting point is obtained based on the telemetry data of the starting point, and then the current water level elevation data is calculated based on the change data, the position data and the reference elevation data.

[0011] The specific steps of calculating and obtaining the current water level elevation data according to the change data, the position data and the reference elevation data are as follows:

[0012] Calculating zero point elevation data according to the position data and the reference elevation data, wherein the position data is the vertical distance between the starting zero point and the reference elevation point;

[0013] The current water level elevation data is calculated based on the change data and the zero point elevation data.

[0014] As an implementable method, the specific steps of measuring the elevation data of the reference elevation point and obtaining the reference elevation data are as follows:

[0015] The geodetic height of the benchmark elevation point is measured by static measurement using an external GPS measuring device, and the geodetic height is converted into benchmark elevation data according to a preset elevation conversion rule. The benchmark elevation data includes the 1985 National Elevation Phase I data and / or the 1985 National Elevation Phase II data.

[0016] In order to solve the above technical problems, the present invention also proposes a system for determining water level elevation based on telemetry data without a scaled water level gauge, comprising:

[0017] A data configuration module is used to obtain telemetry data of a preset zero point during telemetry, and position data of the zero point corresponding to the water level gauge, and is also used to obtain reference elevation data of a preset reference elevation point on the water level gauge;

[0018] The data processing module is used to obtain the telemetry data of the current water level, and obtain the change data between the current water level and the starting point based on the telemetry data of the starting point, and is also used to calculate the current water level elevation data based on the change data, the position data and the reference elevation data.

[0019] in:

[0020] The position data is the vertical distance between the starting zero point and the reference elevation point;

[0021] The data processing module includes a change data calculation unit and a water level elevation data calculation unit, and the water level elevation data calculation unit is configured as follows:

[0022] Calculating and obtaining zero point elevation data according to the position data and the reference elevation data;

[0023] The current water level elevation data is calculated based on the change data and the zero point elevation data.

[0024] As an implementable embodiment, the data configuration module includes a data acquisition unit and a data conversion unit;

[0025] The data acquisition unit is used to acquire the telemetry data of the starting zero point and the position data of the starting zero point on the water level gauge, and is also used to acquire the 1985 national elevation data of the preset reference elevation point on the water level gauge;

[0026] The data conversion unit is used to convert the 1985 national elevation data into reference elevation data according to a preset elevation conversion rule.

[0027] In order to solve the above technical problems, the present invention further proposes an auxiliary device, which is used in any one of the above methods for determining water level elevation based on telemetry data under a scaleless water level gauge to assist an external GPS measuring device in measuring reference elevation data, comprising:

[0028] The frame is enclosed to form a placement area, and the water level gauge is located in the placement area;

[0029] An observation box, comprising a box body and a box door that are movably connected;

[0030] The box is mounted on the frame, and a graticule is embedded in the side wall of the box adjacent to the water level gauge, and a crosshair is engraved on the graticule, wherein the horizontal line of the crosshair is used to mark the reference elevation point;

[0031] The box door is provided with an observation window, through which the position corresponding to the cross line on the water level gauge can be viewed when the box door is closed;

[0032] The inner cavity of the box is used for placing an external GPS measuring device, and the external GPS measuring device is used for measuring the elevation at the horizontal line of the crosshairs as reference elevation data.

[0033] As an implementable method:

[0034] The box is slidably connected to the frame along the vertical direction;

[0035] The frame is provided with a plurality of positioning holes evenly distributed in the vertical direction;

[0036] A limiting structure is provided in the inner cavity of the box body. When the box body moves to a specified position, the end of the limiting structure is inserted through the box body into a corresponding positioning hole to limit the displacement of the box body in the vertical direction.

[0037] The present invention has significant technical effects due to the adoption of the above technical solution:

[0038] 1. The present invention sets a reference elevation point on the water level gauge and obtains accurate reference elevation data to standardize the water level gauge. When measuring the current water level, the current water level elevation data is calculated based on the reference elevation data, thereby eliminating the influence of the deviation of the scale value on the water level gauge on the current water level elevation data. Therefore, compared with the prior art, the accuracy of water level elevation data measurement can be effectively improved.

[0039] 2. The present invention obtains the zero-point elevation data of the starting zero point by calculating the vertical distance between the zero point and the reference elevation point, and then calculates the current water level elevation data based on the change amount obtained by telemetry. On the one hand, the present invention is suitable for water level gauges without scales, and on the other hand, it avoids errors in readings caused by wide scale lines, thereby improving accuracy.

[0040] 3. The present invention measures the geoid height of the benchmark elevation point by static measurement, and the accuracy can reach mm level. The present invention can automatically convert the measured geoid height into benchmark elevation data consistent with the current regional elevation benchmark, such as the 1985 National Elevation Phase I data, through preset elevation conversion rules, to avoid data deviation caused by different elevation benchmarks in the same area.

[0041] 4. The present invention provides a placement space for the measurement of external GPS measuring equipment through the design of auxiliary devices, thereby realizing the measurement of the benchmark elevation data of the benchmark elevation point. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0043] Figure 1 This is a schematic diagram of the principle of measuring water level with a telemetered water level gauge;

[0044] Figure 2 is a flow chart of a method for determining a standard elevation of a water level based on telemetry data in Example 1;

[0045] Figure 3 This is a schematic diagram of module connections of a system for determining a standard elevation of a water level based on telemetry data in Example 3;

[0046] Figure 4 It is a structural schematic diagram of an auxiliary device of the present invention;

[0047] Figure 5 yes Figure 4 A schematic diagram of the structure of the first bow-shaped member 212 and the second bow-shaped member 212;

[0048] Figure 6 yes Figure 5 A schematic diagram of the structure inside the middle box 101.

[0049] Explanation of reference numerals: 100, observation box; 101, box body; 102, box door; 103, observation window; 104, first partition; 105, second partition; 106, third partition; 110, measurement cavity; 111, horizontal slot; 112, card slot; 120, observation cavity; 121, graticule; 122, number wheel; 200, frame; 211, first bow-shaped member; 212, second bow-shaped member; 213, ear plate with hole; 214, bolt ; 220, support rod; 3, external GPS measuring equipment; 410, data configuration module; 411, data acquisition unit; 412, data conversion unit; 420, data processing module; 421, change data calculation unit; 412, water level data calculation unit; ; 500, telemetered water level gauge; 500, telemetered water level gauge; 510, water level wheel; 520, float; 530, balance weight; 600, water level gauge; 700, well logging. DETAILED DESCRIPTION

[0050] The specific steps of remote water level measurement today are:

[0051] like Figure 1 As shown, a telemetering water level meter 500 is deployed in the well logging 700. The telemetering water level meter 500 includes a water level wheel 510, a float 520 and a counterweight 530. The water level wheel 510 is provided with a water level encoder, a float 520 and a counterweight 530. One end of the float 520 is connected to a suspension cable, and the suspension cable passes through the water level wheel 510 and is connected to the counterweight 530. The float 520 floats up and down with the change of the water level, so that the counterweight 530 moves up and down with the floating of the float 520. At this time, the suspension cable will drive the water level wheel 510 to rotate in the corresponding direction, so that the reading of the water level encoder changes.

[0052] When deploying the telemetered water level gauge 500, a zero point is set. The distance between the water level at the zero point and the water level wheel 510 is h1, and the position of the zero point is marked on the water level gauge 600, such as Figure 1 As shown at point C, read the scale data K1 at point C;

[0053] When the water level changes, such as Figure 1The water level rises from point C to point B. At this time, the height difference between the water level wheel 510 and the current water surface, that is, the water level at point B, becomes h2. At this time, the change value of the water level can be calculated, that is, △H1=h1-h2, and the scale data K2 of the current water level can be calculated by the scale data of the zero point and the water level change value, that is, K2=K1+△H1. However, since the scale data on the current water level gauge 600 is inaccurate or lacks scale data, the scale data K2 of the current water level obtained cannot be equivalent to the current water level elevation data.

[0054] The present invention is further described in detail below in conjunction with embodiments. The following embodiments are for explanation of the present invention but the present invention is not limited to the following embodiments.

[0055] Embodiment 1: A method for determining a standard water level elevation based on telemetry data, such as Figure 2 As shown, the following steps are included:

[0056] S100, setting a starting zero point for telemetry, obtaining telemetry data of the starting zero point, and obtaining position data of the starting zero point on the water level gauge 600; setting a reference elevation point on the water level gauge 600, measuring elevation data of the reference elevation point, and obtaining reference elevation data;

[0057] S200, obtaining telemetry data of the current water level, and obtaining change data between the current water level and the starting point based on the telemetry data of the starting point, and then calculating the current water level elevation data based on the change data, the position data and the reference elevation data.

[0058] As can be seen from the above, this embodiment obtains accurate reference elevation data by setting a reference elevation point on the water level gauge 600 and measuring the elevation data of the reference elevation point. Therefore, when the current water level is subsequently measured, the current water level elevation data is obtained based on the reference elevation data, which can effectively improve the accuracy of water level elevation data measurement compared with the prior art.

[0059] Furthermore, the specific steps of calculating and obtaining the current water level elevation data according to the change data, the position data and the reference elevation data in step S200 are:

[0060] Calculate and obtain water level scale data according to the position data and the change data, wherein the position data is the scale value on the water level gauge 600 corresponding to the starting zero point;

[0061] Obtain reference elevation scale data, which is the scale value corresponding to the reference elevation point on the water level gauge 600, calculate deviation data based on the reference elevation data and the reference elevation scale data, and calculate current water level elevation data based on the deviation data and the water level scale data.

[0062] As can be seen from the above, this embodiment obtains the deviation data of the scale on the water level gauge 600 by calculating the benchmark elevation data and benchmark elevation scale data corresponding to the benchmark elevation point, and then corrects the water level scale data with the obtained deviation data to obtain the current water level elevation data.

[0063] Furthermore, in step S100, the elevation data of the reference elevation point is measured, and the specific steps of obtaining the reference elevation data are as follows:

[0064] The geodetic height of the benchmark elevation point is measured by static measurement using an external GPS measuring device, and the geodetic height is converted into benchmark elevation data according to a preset elevation conversion rule. The benchmark elevation data includes the 1985 National Elevation Phase I data and / or the 1985 National Elevation Phase II data.

[0065] Note: When no preset elevation conversion rules are set, the 1985 national elevation data obtained by measurement is directly used as the benchmark elevation data.

[0066] The above-mentioned static measurement method is a prior art. In this embodiment, an external GPS measuring device is used for continuous 24-hour uninterrupted observation to measure the geoid height of the benchmark elevation point. The accuracy of GPS static measurement can reach mm level, while the traditional GPS measurement uses the RTK fast point method with an accuracy of cm level, thereby significantly improving the accuracy of the water level elevation data measured in this embodiment, so that the method for determining the water level elevation based on telemetry data under a scaleless water level gauge proposed in this embodiment can be applied to occasions with high requirements for water level elevation measurement accuracy.

[0067] The elevation conversion rules include the conversion relationship between geodetic height and other elevation benchmarks, and the elevation benchmark can be the 1985 National Elevation Phase I Benchmark or the 1985 National Elevation Phase II Benchmark;

[0068] Note: The conversion relationship between geoid height and other elevation benchmarks is an existing technology. There is no need to inform technical personnel in related fields in detail. They can set elevation conversion rules according to actual needs and obtain benchmark elevation data that meets their work requirements.

[0069] That is, the staff sets the elevation conversion rules according to the actual situation. When measuring the water level elevation, at least one benchmark elevation data is output according to the preset elevation conversion rules, such as simultaneously outputting the elevation data corresponding to the 1985 National Elevation Phase I and the 1985 National Elevation Phase II.

[0070] Examples:

[0071] Set the telemetry zero point, such as Figure 1 As shown at point C in the figure, the telemetry data of the starting point is obtained, such as Figure 1As shown in h1, the position data of the starting zero point corresponding to the water level gauge 600 is obtained, that is, the scale value K1 of point C on the water level gauge 600;

[0072] Set a reference elevation point on the water level gauge 600, such as Figure 1 As shown at point A, the elevation data of the reference elevation point is measured to obtain reference elevation data S1, and the scale data of the reference elevation point, namely, reference elevation scale data K3, is obtained;

[0073] Calculate the deviation data △S of the scale on the water level gauge 600 according to the reference elevation data S1 and the reference elevation scale data K3, where △S=S1-K3;

[0074] According to the existing telemetry method, the current water level is telemetered to obtain the height difference between the current water level (point B) and the starting zero point (point C), that is, the water level change data △H1, △H1 = h1-h2;

[0075] The current water level elevation data S2 is calculated based on the scale value K1, the change data △H1, and the deviation data △S, specifically:

[0076] S2=K1+△H1+△S.

[0077] For example, if the base elevation data S1 is 103m and the scale data K3 of the base elevation point is 100m, the calculated deviation data △S is 3m.

[0078] The zero point corresponds to the scale value K1 on the water level gauge 600 of 90m. The height difference between the current water level (point B) and the zero point (point C) obtained by telemetry, that is, the water level change data △H1 is 5m;

[0079] At this time, the current water level elevation data S2 = K1 + △H1 + △S = 90m + 5m + 3m = 98m. According to the existing method, no scale correction is performed and the water level scale data is directly read as 95m.

[0080] Example 2, a method for determining water level elevation based on telemetry data without a scaled water level gauge, the position data described in Example 1 is changed from "the starting zero point corresponds to the scale value on the water level gauge 600" to "the vertical distance between the starting zero point and the reference elevation point", and the rest is the same as Example 1, that is, at this time, the specific steps of calculating and obtaining the current water level elevation data according to the change data, the position data and the reference elevation data are:

[0081] Calculating and obtaining zero point elevation data according to the position data and the reference elevation data;

[0082] The current water level elevation data is calculated based on the change data and the zero point elevation data.

[0083] Examples:

[0084] Set a reference elevation point on the water level gauge 600, such as Figure 1 As shown at point A, the elevation data of the reference elevation point is measured to obtain reference elevation data S1;

[0085] Set the telemetry zero point, such as Figure 1 As shown at point C in the figure, the telemetry data of the starting point is obtained, such as Figure 1 As shown in h1, the position data of the starting zero point corresponding to the water level gauge 600 is obtained at the same time, that is, the distance △H2 between point C and point A on the water level gauge 600. When point C is below point A, △H2 is a negative value, otherwise it is a positive value;

[0086] According to the existing telemetry method, the current water level is telemetered to obtain the height difference between the current water level (point B) and the starting zero point (point C), that is, the water level change data △H1, △H1 = h1-h2;

[0087] The current water level elevation data S2 is calculated based on the vertical distance △H2, the change data △H1, and the reference elevation data S1, specifically:

[0088] S2=S1+△H2+△H1.

[0089] For example, the benchmark elevation data S1 is 103m, the vertical distance △H2 between the benchmark elevation data S1 and the starting zero point and the benchmark elevation point is 10m, and the starting zero point is located below the benchmark elevation point; the height difference between the current water level (point B) and the starting zero point (point C) is obtained by telemetry, that is, the water level change data △H1 is 5m;

[0090] At this time, the current water level elevation data S2=S1+△H2+△H1=103m-10m+5m=98m.

[0091] As can be seen from the above, the present embodiment can directly utilize the non-scaled water level gauge 600 to measure the water level elevation, and because the scale lines on the water level gauge 600 are relatively wide, when the water level is at different heights of the same scale, the scale values ​​read are the same, which will result in data deviation. In the present embodiment, the reference elevation data S1 and the vertical distance △H2 between the starting zero point and the reference elevation point are directly measured, and the water level elevation is measured based on △H2, which can effectively avoid data deviation when reading the scale value based on the scale lines, and further improve the accuracy of the water level elevation data.

[0092] The method proposed in this embodiment can be used for a water level column without scale values ​​and has a wide range of applications.

[0093] Embodiment 3: A system for determining a standard water level elevation based on telemetry data, such as Figure 3 As shown, including:

[0094] The data configuration module 410 is used to obtain the telemetry data of the zero point preset during telemetry, and the position data of the zero point corresponding to the water level gauge 600, and is also used to obtain the reference elevation data of the reference elevation point preset on the water level gauge 600; the position data is the scale value on the water level gauge 600 corresponding to the zero point;

[0095] The data processing module 420 is used to obtain the telemetry data of the current water level, and obtain the change data of the current water level and the starting point based on the telemetry data of the starting point, and is also used to calculate the current water level elevation data based on the change data, the position data and the reference elevation data.

[0096] Furthermore, the data processing module 420 includes a change data calculation unit and a water level elevation data calculation unit 422, and the water level elevation data calculation unit 422 is configured as follows:

[0097] Calculate and obtain water level scale data according to the position data and the change data;

[0098] Obtain reference elevation scale data, which is the scale value corresponding to the reference elevation point on the water level gauge 600, calculate deviation data based on the reference elevation data and the reference elevation scale data, and calculate current water level elevation data based on the deviation data and the water level scale data.

[0099] The change data calculation unit is used to obtain the telemetry data of the current water level, and obtain the change data between the current water level and the starting point based on the telemetry data of the starting point

[0100] Further, the data configuration module 410 includes a data acquisition unit 411 and a data conversion unit 412;

[0101] The data acquisition unit 411 is used to acquire the telemetry data of the starting zero point and the position data of the starting zero point on the water level gauge 600, and is also used to acquire the 1985 national elevation data of the preset reference elevation point on the water level gauge 600;

[0102] The data conversion unit 412 is used to convert the 1985 national elevation data into reference elevation data according to a preset elevation conversion rule.

[0103] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts refer to the method embodiment, that is, part of the description of Embodiment 1.

[0104] Embodiment 4, a system for determining water level elevation based on telemetry data without a scaled water level gauge, wherein the position data in Embodiment 3 is changed from "the starting zero point corresponds to the scale value on the water level gauge 600" to "the vertical distance between the starting zero point and the reference elevation point", and the water level elevation data calculation unit 422 is configured as follows:

[0105] Calculating and obtaining zero point elevation data according to the position data and the reference elevation data;

[0106] The current water level elevation data is calculated based on the change data and the zero point elevation data.

[0107] The rest is the same as Example 3.

[0108] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts refer to the method embodiment, that is, part of the description of Embodiment 2 is sufficient.

[0109] Embodiment 5, an auxiliary device, used for assisting an external GPS measuring device in measuring reference elevation data in the method described in embodiment 1 or embodiment 2, comprises:

[0110] A rack 200 and an observation box 100;

[0111] The rack 200 is enclosed to form a placement area, and the water level gauge 600 is located in the placement area;

[0112] The observation box 100 includes a box body 101 and a box door 102 which are movably connected;

[0113] The box body 101 is installed on the frame 200, and a dividing plate 121 is embedded in the side wall of the box body 101 adjacent to the water level gauge 600, and a cross line is engraved on the dividing plate 121; in this embodiment, the dividing plate 121 is formed by using a transparent material (such as plastic) embedded in the box door 102.

[0114] The box door 102 is provided with an observation window 103, through which the position corresponding to the cross line on the water level gauge 600 can be viewed when the box door 102 is closed; in this embodiment, the observation window 103 is formed by embedding the box door 102 with a transparent material (such as plastic).

[0115] Note: A door lock may be provided on the door 102 according to actual needs to prohibit non-staff from opening the door 102.

[0116] The inner cavity of the box 101 is used for placing an external GPS measuring device 3, and the external GPS measuring device 3 is used for measuring the elevation at the horizontal line of the crosshairs as reference elevation data.

[0117] The horizontal line of the crosshairs is used to indicate the reference elevation point in the above-mentioned embodiments 1 to 4, that is, the horizontal line of the crosshairs is used as the reference elevation point set on the water level gauge 600, and the external GPS measuring device 3 measures the elevation at the horizontal line of the crosshairs as the reference elevation data, which is the 1985 national elevation data described in Embodiment 1.

[0118] Note: The external GPS measuring device 3 can measure the reference elevation data by dynamic measurement or static measurement according to actual needs.

[0119] The vertical line of the crosshairs is used to determine whether the horizontal line is kept horizontal. In this embodiment, by designing the auxiliary device, there is no need to re-establish a non-standardized water level gauge 600 or a water level gauge 600 with data deviation. It is only necessary to use the external GPS measurement device 3 to measure the elevation of the horizontal line of the crosshairs in the graticule 121, and correct the data deviation of the water level gauge 600 based on the elevation of the horizontal line, thereby standardizing the water level gauge 600.

[0120] The staff can re-measure the elevation of the horizontal line of the crosshairs in the graticule 121 at regular intervals to avoid data deviation caused by ground subsidence.

[0121] Further:

[0122] The box body 101 is slidably connected to the frame 200 along the vertical direction;

[0123] The frame 200 is provided with a plurality of positioning holes (not shown in the figure) evenly distributed along the vertical direction;

[0124] A limiting structure (not shown) is provided in the inner cavity of the box 101. When the box 101 moves to a specified position, the end of the limiting structure passes through the box 101 and is inserted into a corresponding positioning hole to limit the vertical displacement of the box 101.

[0125] As can be seen from the above, the staff can adjust the height of the observation box 100 to a position that is convenient for observation and measurement according to actual needs.

[0126] Note that there is no need to limit the specific shape and structure of the positioning hole. It is only necessary to enable the end of the limiting structure to pass through the box body 101 and be inserted into the corresponding positioning hole to limit the displacement of the box body 101 in the vertical direction.

[0127] Further:

[0128] The frame 200 includes a fixed structure and support rods 220 symmetrically arranged on both sides of the box 101, and the fixed structure is fixed to the ground or fixed to the water level gauge 600; when the fixed structure is directly fixed to the ground, an existing conventional frame can be used as the fixed structure, such as a circular frame or a rectangular frame, and the water level gauge 600 is located on the inner side of the frame.

[0129] The support rod 220 is connected to the fixed structure, and a slide rail (not shown in the figure) is provided on the support rod 220. A plurality of positioning holes (not shown in the figure) evenly distributed along the vertical direction are provided on one side of the slide rail. The slide rails on both sides of the box body 101 correspond one to one, and the positioning holes on both sides of the box body 101 correspond one to one. The positioning holes can be through holes or blind holes.

[0130] The box body 101 is slidably disposed on the slide rail and moves along the vertical direction on the slide rail.

[0131] Note that the box 101 can be provided with a slider or roller corresponding to the slide rail according to the type of the slide rail, so as to realize the sliding connection between the box 101 and the slide rail. In this embodiment, it is only necessary to make the box 101 move up and down along the slide rail, so there is no need to define the specific structure of the slide rail in detail, and technicians in the relevant field can select existing slide rails according to actual conditions.

[0132] Further:

[0133] The fixing structure includes at least one set of fixing components fixed to the outer surface of the water level gauge 600;

[0134] The fixing assembly includes a pair of bow-shaped members, and the outer sides of both ends of the bow-shaped members are provided with ear plates with holes, wherein each bow-shaped member is connected to the support rod 220 one by one through its ear plate 213 with holes;

[0135] A pair of bow-shaped members are arranged in a mirror-symmetrical manner on both sides of the water level gauge 600, and each bow-shaped member is parallel to the ground. The perforated ear plates 213 on the two bow-shaped members correspond to each other one by one, and the two corresponding perforated ear plates 213 are fixedly connected by bolts 214 to fix the two bow-shaped members on the outer surface of the water level gauge 600.

[0136] like Figure 2 As shown, the fixing assembly includes a first bow member 211 and a second bow member 212, wherein the outer sides of the ends of the first bow member 211 and the second bow member 212 are provided with ear plates 213 with holes, wherein one ear plate 213 with holes of the first bow member 211 is fixedly connected to a support rod 220, and one ear plate 213 with holes of the second bow member 212 is fixedly connected to another support rod 220; in this embodiment, the first bow member 211 and the second bow member 212 can adopt semi-bow or inferior bow members.

[0137] The first bow member 211 and the second bow member 212 are arranged in mirror symmetry on both sides of the water level gauge 600, and the first bow member 211 and the second bow member 212 are parallel to the ground. The perforated ear plates 213 on the first bow member 211 correspond to the perforated ear plates 213 on the second bow member 212 one by one, and the two corresponding perforated ear plates 213 are fixedly connected by bolts 214, so that the first bow member 211 and the second bow member 212 are fixed to the outer surface of the water level gauge 600.

[0138] Since the water level gauge 600 is usually cylindrical, the external GPS measuring device 3 cannot be directly placed on the water level gauge 600 for measurement, and due to the different environments in which the water level gauge 600 is set up, the technical solution of fixing the fixed structure on the ground has the disadvantage of low flexibility and is not suitable for special environments;

[0139] As can be seen from the above, in this embodiment, the first bow member 211 and the second bow member 212 are fixed to the water level gauge 600 by bolts 214, so that the fixing structure is not restricted by the environment, and the first bow member 211 and the second bow member 212 are detachably connected by bolts 214, so the first bow member 211 and the second bow member 212 of different sizes can be selected according to actual conditions, which is suitable for various scenarios where auxiliary devices need to be set up.

[0140] In actual use, the staff can set the number of fixing components according to actual needs. As shown in the figure, two sets of fixing components are used in this embodiment, which are respectively set at the upper and lower ends of the support rod 220.

[0141] Furthermore, the support rod 220 is detachably connected to the ear plate 213 with holes.

[0142] As shown in the figure, in this embodiment, the support rod 220 is provided with a mounting hole corresponding to the perforated ear plate 213, and the bolt 214 passes through the perforated ear plate 213 of each first bow member 211 and the second bow member 212 and the mounting hole of each support rod 220. Nuts are provided on both sides of the support rod 220 and the perforated ear plate 213 on the same side, so that the bolt 214 fixes the first bow member 211 and the second bow member 212 on the water level gauge 600, and also fixes the support rod 220 to one side of the perforated ear plate 213 corresponding to it.

[0143] Further:

[0144] A through hole is provided on one side of the box body 101 adjacent to the positioning hole;

[0145] The limiting structure comprises a limiting rod, a first limiting block and a second limiting block, one end of the limiting rod passes through the through hole and is connected to the first limiting block, and the other end is directly connected to the second limiting block, and the limiting rod is horizontally displaced in the through hole;

[0146] When the box body 101 moves to a designated position, the first limiting block is inserted into a corresponding positioning hole to limit the displacement of the box body 101 in the vertical direction.

[0147] In actual use, the staff moves the box 101 to a suitable height, and then pushes the second limit block in the box 101 to insert the first limit block into the corresponding positioning hole, so that the box 101 can be maintained at the height without moving.

[0148] The limiting structures are symmetrically arranged on both sides of the box body 101 to ensure the stability of the box body 101.

[0149] Note: The width of the first limit block and the second limit block is greater than the diameter of the through hole, so as to prevent the limit structure from falling out of the through hole. There is no need to limit the position of the through hole and the length of the limit rod. It is only necessary to enable the limit rod to move left and right in the through hole to drive the first limit block to be inserted into the positioning hole to achieve positioning.

[0150] like Figure 3 As shown, further;

[0151] The box body 101 is provided with a first partition plate 104 and a second partition plate 105;

[0152] The first partition 104 is vertically inserted into the inner cavity of the box 101. The first partition 104 divides the inner cavity of the box 101 into an observation cavity 120 and a measurement cavity 110. The dividing plate 121 is embedded in the side wall of the box 101 between the observation cavity 120 and the water level gauge 600. When the box door 102 is closed, the observation window 103 faces the observation cavity 120.

[0153] A plurality of groups of horizontal slots 111 are symmetrically provided on the lower half of the side walls on opposite sides of the measuring cavity 110. The second partition plate 105 is horizontally inserted into the measuring cavity 110 through a corresponding group of horizontal slots 111. The external GPS measuring device 3 is vertically placed on the upper surface of the second partition plate 105, so that the external GPS measuring device 3 can measure the elevation at the horizontal line of the crosshairs as the reference elevation data.

[0154] That is, when the user has higher requirements for measurement accuracy, the second partition plate 105 can be inserted into a slot of corresponding height according to the size of the external GPS measuring device 3 used, so that the geometric center of the external GPS measuring device 3 when placed upright corresponds to the horizontal line of the crosshairs;

[0155] Furthermore, a third partition 106 is provided in the box body 101, and a plurality of slots 112 are provided on the upper surface of the second partition 105 from left to right. The third partition 106 is inserted into the corresponding slots 112 according to the width of the external GPS measuring device 3, so that the external GPS measuring device 3 remains in an upright state.

[0156] Since the external GPS measuring device 3 needs to be stably placed in the measuring position and will not slip when performing static measurement, in this embodiment, by placing the external GPS measuring device 3 in the observation box 100 for measurement, it is possible to effectively avoid the situation where the external GPS measuring device 3 slips due to the natural environment, such as wind. The second partition 105 is also designed so that when the external GPS measuring device 3 is placed on the second partition 105 for measurement, the external GPS measuring device 3 can be fixed by inserting the third partition 106 to avoid slipping.

[0157] Further:

[0158] A number wheel 122 is also provided in the observation cavity 120 . The number wheel 122 is located above or below the graticule 121 . The number wheel 122 is used to mark the elevation data at the horizontal line of the crosshairs.

[0159] The number wheel 122 includes a number wheel shaft and a plurality of number wheels mounted on the outer surface of the number wheel shaft. The number wheels are provided with numbers 0 to 9 and a decimal point ".". Each number wheel can rotate on the number wheel shaft. The number wheel 122 belongs to the existing conventional technology, so it will not be described in detail here.

[0160] In actual application, the staff can turn each character wheel to display the measured elevation data through the digital wheel 122. In this embodiment, 7 character wheels are provided.

[0161] Example 6: The limiting structure in Example 5 is changed from a mechanical structure to an electrical structure, and the rest is the same as Example 5. The limiting structure is specifically:

[0162] Further:

[0163] A through hole is provided on one side of the box body 101 adjacent to the positioning hole;

[0164] The limit structure includes two electric lock modules, a limit switch and a power supply, and the power supply supplies power to the two electric lock modules through the limit switch;

[0165] When the box 101 moves to the specified position, the two electric lock modules are controlled by the limit switch to lock the box 101 on the rack 200. At this time, the lock tongues of the electric lock modules are inserted into the corresponding positioning holes through the through holes to limit the vertical displacement of the box 101.

[0166] As can be seen from the above, the limit structure can also adopt an electrical structure. The power supply is connected to the two electric lock modules respectively through the limit switch. In actual use, the staff only needs to turn on the limit switch. At this time, the electric lock module is powered on and the lock tongue is retracted. Then, the box 101 is moved to a suitable position and the limit switch is cut off. At this time, the electric lock module is powered off, and the lock tongue is inserted into the corresponding positioning hole through the through hole to limit the displacement of the box 101 in the vertical direction.

[0167] Note: there is no need to limit the positions of the through hole and the electric lock module. It is only necessary to enable the lock tongue to extend out of the through hole and be inserted into the positioning hole to achieve positioning.

[0168] The electric latch module is a prior art, and it is a conventional technology to lock the electric latch module when it is powered off and to open it when it is powered on, so it will not be described in detail in this embodiment.

[0169] In actual use, the staff will put the assembled auxiliary device on the corresponding outer surface of the water level gauge 600, and tighten the nuts on the outside of each perforated ear plate 213 (the inside is the support rod 220) to fix the first bow member 211 and the second bow member 212 on the outer surface of the water level gauge 600.

[0170] Then, the observation box 100 is moved along the slide rail on the support rod 220 to a specified height, such as a height that is convenient for staff to observe. At this time, the observation box 100 is limited in the vertical direction by a limiting structure, and the observation box 100 is prohibited from moving up and down along the slide rail.

[0171] According to the size of the external GPS measuring device 3, the second partition 105 is inserted into the horizontal slot 111 of the corresponding height, and then the external GPS measuring device 3 is placed upright on the upper surface of the second partition 105, and one / two third partitions 106 are inserted into the card slot 112 at the corresponding position, so that the external GPS measuring device 3 remains in an upright state for stable measurement.

[0172] After obtaining the measurement result, the digital wheel is turned according to the obtained elevation data, so that the digital wheel 122 records and displays the elevation data.

[0173] Then, the elevation data is used as a reference to correct the deviation value of the water level gauge 600, thereby achieving standardization of the water level gauge 600.

[0174] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0175] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0176] The present invention is described with reference to the flowcharts and / or block diagrams of the method, terminal device (system), and computer program product according to the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0177] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0178] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0179] It should be noted that:

[0180] The "one embodiment" or "embodiment" mentioned in the specification means that the specific features, structures or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment" or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0181] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0182] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different. Any equivalent or simple changes made based on the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. The technicians in the technical field of the present invention can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A method for determining water level elevation based on telemetry data without a scaled water level gauge, characterized in that The following steps are involved: Setting a zero point for telemetry, obtaining telemetry data of the zero point, and obtaining position data of the zero point on the water level gauge; setting a reference elevation point on the water level gauge, measuring elevation data of the reference elevation point, and obtaining reference elevation data; Acquire telemetry data of the current water level, and obtain change data of the current water level and the starting point based on the telemetry data of the starting point, and then calculate the current water level elevation data according to the change data, the position data and the reference elevation data; The specific steps of calculating and obtaining the current water level elevation data according to the change data, the position data and the reference elevation data are as follows: Calculating zero point elevation data according to the position data and the reference elevation data, wherein the position data is the vertical distance between the starting zero point and the reference elevation point; Calculating and obtaining current water level elevation data according to the change data and the zero point elevation data; The specific steps of measuring the elevation data of the reference elevation point and obtaining the reference elevation data are as follows: The geodetic height of the benchmark elevation point is measured by static measurement using an external GPS measuring device, and the geodetic height is converted into benchmark elevation data according to a preset elevation conversion rule. The benchmark elevation data includes the 1985 National Elevation Phase I data and / or the 1985 National Elevation Phase II data.

2. A system for determining water level elevation based on telemetry data without a scaled water level gauge, characterized in that: include: A data configuration module is used to obtain telemetry data of a preset zero point during telemetry, and position data of the zero point corresponding to the water level gauge, and is also used to obtain reference elevation data of a preset reference elevation point on the water level gauge; The data configuration module includes a data acquisition unit and a data conversion unit; the data acquisition unit is used to acquire the telemetry data of the starting zero point and the position data of the starting zero point corresponding to the water level gauge, and is also used to acquire the 1985 national elevation data of the preset reference elevation point on the water level gauge; the data conversion unit is used to convert the 1985 national elevation data into reference elevation data according to a preset elevation conversion rule; A data processing module, used to obtain telemetry data of the current water level, and obtain change data between the current water level and the starting point based on the telemetry data of the starting point, and also used to calculate the current water level elevation data according to the change data, the position data and the reference elevation data; The position data is the vertical distance between the starting zero point and the reference elevation point; The data processing module includes a change data calculation unit and a water level elevation data calculation unit, and the water level elevation data calculation unit is configured as follows: Calculating and obtaining zero point elevation data according to the position data and the reference elevation data; The current water level elevation data is calculated based on the change data and the zero point elevation data.

3. An auxiliary device for assisting an external GPS measuring device in measuring reference elevation data in the method for determining water level elevation based on telemetry data under a scaleless water level gauge as claimed in claim 1, characterized in that: include: The frame is enclosed to form a placement area, and the water level gauge is located in the placement area; An observation box, comprising a box body and a box door that are movably connected; The box is mounted on the frame, and a graticule is embedded in the side wall of the box adjacent to the water level gauge, and a crosshair is engraved on the graticule, wherein the horizontal line of the crosshair is used to mark the reference elevation point; The box door is provided with an observation window, through which the position corresponding to the cross line on the water level gauge can be viewed when the box door is closed; The inner cavity of the box is used for placing an external GPS measuring device, and the external GPS measuring device is used for measuring the elevation at the horizontal line of the crosshairs as reference elevation data.

4. The auxiliary device according to claim 3, characterized in that: The box is slidably connected to the frame along the vertical direction; The frame is provided with a plurality of positioning holes evenly distributed in the vertical direction; A limiting structure is provided in the inner cavity of the box body. When the box body moves to a specified position, the end of the limiting structure is inserted through the box body into a corresponding positioning hole to limit the displacement of the box body in the vertical direction.

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