Water level monitoring device

The water level monitoring device achieves high accuracy and adaptability by maintaining a fixed pressure value and using a guide rail structure to stabilize measurements, addressing the limitations of existing methods.

DE202026102433U1Undetermined Publication Date: 2026-07-02CHINA THREE GORGES CORPORATION

Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
CHINA THREE GORGES CORPORATION
Filing Date
2026-04-29
Publication Date
2026-07-02

AI Technical Summary

Technical Problem

Existing water level measurement methods struggle to achieve high accuracy and adaptability over large measuring ranges, with pressure sensors being limited by measuring range and accuracy, non-contact measurements susceptible to environmental disturbances, and float-type devices requiring specific infrastructure.

Method used

A water level monitoring device comprising a guide rail structure, a sliding block support platform, a pressure sensor, a servo drive module, a position measuring module, and an intelligent control module, which maintains a preset pressure value and calculates water level based on real-time data and predefined parameters.

Benefits of technology

Ensures high accuracy in the millimeter or submillimeter range by maintaining a fixed pressure value, reducing environmental interference, and enhancing long-term stability compared to traditional methods.

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Abstract

Water level monitoring device, characterized in that the device comprises: a guide rail structure arranged in the water to be measured with a preset inclination, a sliding block support platform slidably attached to the guide rail structure, a pressure sensor fixedly mounted on the sliding block support platform, a servo drive module, a position measuring module and an intelligent control module.wherein the first end of the guide rail structure is positioned above the water body to be measured and the second end of the guide rail structure is fixed at a preset vertical height above the underside of the water body to be measured; wherein the servo drive module serves to move the sliding block support platform along the guide rail structure; wherein the position measurement module serves to measure the first distance between the sliding block support platform and the second end of the guide rail structure; wherein the intelligent control module serves to control the servo drive module on the basis of the real-time pressure data from the pressure sensor so that the pressure sensor in the water body to be measured maintains a preset pressure value, and to calculate the water level of the water body to be measured based on the preset slope, the first distance, the preset vertical height and the preset pressure value.
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Description

TECHNICAL AREA The present application relates to the technical field of water level measurement, in particular a water level monitoring device and method, an electronic device and a storage medium. STATE OF THE ART Water level measurement is a routine monitoring task in fields such as water management, environmental protection, and urban administration. Currently, the following methods are primarily used: 1. Pressure water level gauge: The water level is calculated by measuring the static pressure in the water. Installation is simple and reliability is high; however, the absolute accuracy depends directly on the measuring range and is generally ±0.1% FS to ±0.5% FS (full scale). With a measuring range of 100 meters, the error can amount to several dozen millimeters, which hardly meets the requirements for high millimeter-level accuracy. 2. Radar / ultrasonic water level gauge: Non-contact measurement, simple installation. However, the measurement accuracy is easily affected by environmental factors such as water waves, foam, and steam.For large measuring ranges, achieving absolute accuracy in the millimeter range is technically extremely difficult, and the equipment costs are high. 3. Float-type water level gauges: Based on a construction consisting of a float, pulley, and encoder, they offer high accuracy but require special measuring tubes, are limited in their applications, and are subject to mechanical wear. Therefore, there is an urgent need for a new solution for water level measurement that combines a large measuring range, high accuracy and high adaptability. CONTENT OF THE PRESENT APPLICATION The embodiment of the present application aims to provide a device and a method for water level monitoring that can resolve a contradiction prevalent in the prior art: the difficulty of simultaneously ensuring absolute measurement accuracy in the millimeter range over a large measuring range of over 100 meters, whereby fixedly installed pressure sensors are limited by measuring range and accuracy, non-contact measurements are susceptible to environmental disturbances, and float-type measuring devices require a specific infrastructure. To solve the aforementioned technical problems, the present application will be implemented as follows: In a first aspect, an embodiment of the present application provides a water level monitoring device comprising: a guide rail structure arranged in the water to be measured at a preset inclination, a sliding block support platform slidably attached to the guide rail structure, a pressure sensor fixedly mounted on the sliding block support platform, and a servo drive module, a position measuring module, and an intelligent control module.wherein the first end of the guide rail structure is positioned above the water body to be measured and the second end of the guide rail structure is fixed at a preset vertical height above the underside of the water body to be measured; wherein the servo drive module serves to move the sliding block support platform along the guide rail structure; wherein the position measurement module serves to measure the first distance between the sliding block support platform and the second end of the guide rail structure; wherein the intelligent control module serves to control the servo drive module on the basis of the real-time pressure data from the pressure sensor so that the pressure sensor in the water body to be measured maintains a preset pressure value, and to calculate the water level of the water body to be measured based on the preset slope, the first distance, the preset vertical height and the preset pressure value. Optionally, the first end of the guide rail structure is fixed to a structure located above the body of water to be measured, with the servo drive module being fixed to a part of the guide rail structure located above the body of water to be measured. Optionally, the position measuring module is permanently attached to the guide rail structure, and the position measuring module is one of the following: a magnetic measuring tape system and an optical measuring tape system. Optionally, the device further includes the following: a vent cable connected to the pressure sensor, which serves to direct the reference end of the pressure sensor into the target atmosphere in order to eliminate measurement errors caused by fluctuations in air pressure. Optionally, one end of the pressure sensor facing the underside of the water being measured is aligned with one end of the sliding block support platform facing the underside of the water being measured. Optionally, the intelligent control module is electrically connected to the servo drive module, the position measuring module and the pressure sensor. In a second aspect, an embodiment of the present application provides a water level monitoring method for the above-mentioned water level monitoring device, comprising the following: acquiring the preset vertical height, preset inclination, preset pressure value, and real-time pressure data of the pressure sensor; acquiring the preset immersion depth corresponding to the preset pressure value; adjusting the position of the pressure sensor based on the real-time pressure data and the preset pressure value so that the pressure sensor remains at the preset immersion depth in the water to be measured; acquiring the first distance between the sliding block support platform and the second end of the guide rail structure; and determining the water level of the water to be measured based on the preset immersion depth, preset vertical height, preset inclination, and first distance. Optionally, determining the water level of the body of water to be measured based on the preset immersion depth, preset slope, preset vertical height, and first distance includes the following: Determining the first vertical height based on the preset slope and first distance; Adding the first vertical height, the preset immersion depth, and the preset vertical height to obtain the water level of the body of water to be measured. In a third aspect, the present invention provides an electronic device comprising a processor, a memory, and programs or instructions stored in the memory and executable on the processor, wherein, when the programs or instructions are executed by the processor, the steps of the method described in the first aspect are implemented. In a fourth aspect, the present invention provides a readable storage medium on which programs or instructions are stored, wherein, when the programs or instructions are executed by the processor, the steps of the method described in the first aspect are implemented. In a fifth aspect, an embodiment of the present application provides a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and wherein the processor serves to execute programs or instructions to implement the method described in the first aspect. An embodiment of the present application provides a water level monitoring device comprising: a guide rail structure arranged at a preset inclination in the water to be measured, a sliding block support platform slidably mounted on the guide rail structure, a pressure sensor fixedly mounted on the sliding block support platform, a servo drive module, a position measuring module, and an intelligent control module, wherein the first end of the guide rail structure is arranged above the water to be measured and the second end of the guide rail structure is fixedly mounted at a preset vertical height above the underside of the water to be measured; wherein the servo drive module serves to move the sliding block support platform along the guide rail structure;wherein the position measuring module serves to measure the first distance between the sliding block support platform and the second end of the guide rail structure; wherein the intelligent control module serves to control the servo drive module on the basis of the pressure data from the pressure sensor so that the pressure sensor maintains a preset pressure value in the water to be measured, and to calculate the water level of the water to be measured based on the preset slope, the first distance, the preset vertical height and the preset pressure value. This approach ensures that the pressure sensor always operates within a fixed, optimal low-pressure range, significantly reducing the effects of temperature drift, nonlinear errors, and other factors. Long-term stability is far superior to that of permanently installed pressure sensors with a large measuring range. Furthermore, maintaining a fixed, preset pressure value at a specific depth below the water's surface effectively prevents the direct effects of waves and foam on the surface, resulting in more stable measurement results. BRIEF DESCRIPTION OF THE DRAWING To more clearly explain the technical solution in the present invention, the drawings to be used in the explanation of the present invention are briefly introduced below. Obviously, the drawings described below show only some embodiments of the present invention. The person skilled in the art in this field can, provided no creative work is done, derive other drawings from the drawings. Fig. 1 shows a schematic diagram of the structure of a water level monitoring device provided by some embodiments of the present invention; Fig. 2 shows a flowchart of the steps of a water level monitoring device provided by some embodiments of the present invention; Fig.Figure 3 shows a schematic diagram of the hardware structure of an electronic device provided by some embodiments of the present invention. DETAILED DESCRIPTION In conjunction with the accompanying drawings in the embodiments of the present application, the technical solutions in the embodiments of the present application are explained clearly and completely below. Obviously, the embodiments explained do not represent all embodiments, but only a subset of them. All other embodiments that a person skilled in the art in this field could obtain from the embodiments in the present application, provided that no creative work is involved, should be considered to be covered by the scope of protection of the present application. The terms “first”, “second”, etc., in the description and claims of this application are used to distinguish similar objects from one another and should not necessarily be used to explain a particular sequence or priority. It is understood that the data used in this way may be exchanged under suitable circumstances so that the embodiments of this application may be implemented with an order other than the one presented or described herein. Furthermore, “and / or” in the description and claims refers to at least one of the related objects, and the sign “ / ” generally indicates that the related objects are in an “or” relationship. In the following, a water level monitoring device provided by the embodiment of the present application is explained in more detail in conjunction with the attached drawings, using specific embodiments and application scenarios. With reference to Fig. 1, a schematic diagram of the structure of a water level monitoring device, provided by some embodiments in the volume, is shown, the device comprising: a guide rail structure arranged with a preset inclination in the water to be measured, a sliding block support platform slidably attached to the guide rail structure, a pressure sensor fixed on the sliding block support platform, a servo drive module, a position measuring module, and an intelligent control module.The following describes the respective solutions for the individual components: the first end of the guide rail structure is positioned above the water to be measured, and the second end of the guide rail structure is fixed at a preset vertical height above the underside of the water to be measured; the servo drive module serves to move the sliding block support platform along the guide rail structure; the position measuring module serves to measure the first distance between the sliding block support platform and the second end of the guide rail structure. The intelligent control module serves to control the servo drive module based on the real-time pressure data of the pressure sensor so that the pressure sensor maintains a preset pressure value in the body of water being measured, and to calculate the water level height of the body of water being measured based on the preset inclination, the first distance, the preset vertical height and the preset pressure value. In particular, the guide rail structure of the water level monitoring device, as shown in Fig. 1, can be installed in the water body to be measured at a specific inclination, which can be preset (preset inclination) and generally corresponds to the slope of the bank of the water body to facilitate installation of the guide rail structure. The water surface of the water body divides the guide rail structure into a part above the water and a part below the water, i.e., one end of the guide rail structure is located in the part above the water (first end of the guide rail structure), while the other end is located in the part below the water (second end of the guide rail structure).Furthermore, the vertical distance of one end of the underwater part to the underside of the water being measured represents a preset vertical distance, i.e., one end of the underwater part is attached at a position that is at a preset vertical height above the underside of the water being measured. In practical application, the range of water level fluctuations can be determined using historical water level data of the body of water being measured. This allows the length of the submerged and above-water sections of the guide rail structure to be set according to this fluctuation range, in order to cover the entire range of water level fluctuations of the body of water being measured. In one embodiment, the guide rail structure can be a rigid guide rail whose length corresponds to the range of water level fluctuations of the body of water being measured, without specifying the material of the guide rail in more detail here. The servo drive module can be used to move the sliding block support platform along the guide rail structure. In some embodiments of the present application, the first end of the guide rail structure is fixedly attached to a structure located above the water to be measured, wherein the servo drive module is fixedly attached to a part of the guide rail structure that is located above the water to be measured. In particular, one end (the first end) of the part of the guide rail structure lying above the water can be firmly attached to a structure above the body of water to be measured; in practical application, this structure may be, for example, a dam, a bridge pier or a fixed support on the bank. The servo drive module can be attached to the part of the guide rail structure that lies above the water or, as shown in Fig. 1, above the first end of the guide rail structure. In one example, this servo drive module could be a waterproof servo motor or stepper motor combined with a precision ball screw or a rack and pinion drive. The sliding block support platform can be mounted on the guide rail structure and is driven by a servo drive module to move along the guide rail structure. A high-precision pressure sensor with a small measuring range is permanently installed on the sliding block support platform. The measuring range of this pressure sensor is far smaller than the range of water level fluctuations of the body of water being measured, yet it exhibits extremely high measurement accuracy. In practical applications, the measurement accuracy of this pressure sensor can reach ±0.05% FS or more. In some embodiments of the present application, an end of the pressure sensor facing the underside of the water to be measured is aligned with an end of the sliding block support platform facing the underside of the water to be measured. In particular, the underside of the pressure sensor can be aligned with the underside of the sliding block support platform. That is, an end of the pressure sensor facing the underside of the water being measured is aligned with an end of the sliding block support platform facing the underside of the water being measured. In some embodiments of the present application, the device further comprises: a vent cable connected to the pressure sensor, which serves to guide the reference end of the pressure sensor into the target atmosphere in order to eliminate measurement errors caused by fluctuations in air pressure. In particular, the vent cable, as shown in Fig. 1, can be connected to a high-precision pressure sensor with a small measuring range, thus directing the reference end of the pressure sensor into the target atmosphere. This target atmosphere can be a pressure environment with stable atmospheric pressure, thereby compensating for fluctuations in atmospheric pressure and avoiding measurement errors caused by them. The position measuring module is used for real-time and precise measurement of the position of the sliding block support platform. This position can be characterized by the relative distance between the underside of the sliding block support platform and the underside (second end) of the guide rail structure; that is, it serves to measure the first distance between the sliding block support platform and the second end of the guide rail structure. In some embodiments of the present application, the position measuring module is fixedly attached to the guide rail structure, wherein the position measuring module is one of the following: a magnetic measuring tape system and an optical measuring tape system. In particular, the position measuring module can be permanently attached to the guide rail structure, preferably using a magnetic or optical measuring system, thereby achieving a resolution of at least the millimeter range. For example, if the position measuring module is a magnetic measuring system, a magnetic measuring system can be permanently attached along the entire length of the guide rail structure. The intelligent control module is the central control unit of the entire device. Its function is to control the servo drive module based on real-time pressure data from the pressure sensor. The servo drive module then drives the sliding block support platform along the guide rail structure, ensuring that the pressure sensor maintains a preset pressure value in the water being measured and thus remains at a preset immersion depth below the water's surface. The intelligent control module then calculates the water level by combining the known preset slope, preset vertical height, and preset pressure value with the first distance measured by the position measuring system between the sliding block support platform and the second end of the guide rail structure. In practical application, the intelligent control module can be implemented as an embedded industrial controller (PLC or special circuit). In some embodiments of the present application, the intelligent control module is electrically connected to the servo drive module, the position measuring module and the pressure sensor. In particular, the intelligent control module can be electrically connected to the servo drive module, the position measurement module, and the pressure sensor, enabling the acquisition of real-time pressure data from the pressure sensor. Based on this real-time pressure data, the servo drive module is controlled so that the pressure sensor moves along with the sliding block support platform, allowing the pressure sensor to maintain the preset pressure value in the water being measured. This maintains a preset immersion depth below the water surface, thereby enabling the acquisition of position data from the position measurement module. An embodiment of the present application provides a water level monitoring device comprising: a guide rail structure arranged at a preset inclination in the water to be measured, a sliding block support platform slidably mounted on the guide rail structure, a pressure sensor fixedly mounted on the sliding block support platform, a servo drive module, a position measuring module, and an intelligent control module; wherein the first end of the guide rail structure is arranged above the water to be measured and the second end of the guide rail structure is fixedly mounted at a preset vertical height above the underside of the water to be measured; wherein the servo drive module serves to move the sliding block support platform along the guide rail structure;wherein the position measuring module serves to measure the first distance between the sliding block support platform and the second end of the guide rail structure; wherein the intelligent control module serves to control the servo drive module on the basis of the pressure data from the pressure sensor so that the pressure sensor maintains a preset pressure value in the water to be measured, and to calculate the water level of the water to be measured based on the preset slope, the first distance, the preset vertical height and the preset pressure value. This ensures that the pressure sensor always operates within a fixed, optimal low-pressure range, significantly reducing the effects of temperature drift, nonlinear errors, and other factors. Long-term stability is far superior to that of permanently installed pressure sensors with a large measuring range. Furthermore, maintaining a fixed, preset pressure value at a specific depth below the water's surface effectively prevents the direct effects of waves and foam on the surface, resulting in more stable measurements. Furthermore, by separating the measurement tasks with a large measuring range (which are performed by the guide rail structure and the position measuring module) from the high-precision measurement tasks (which are performed by the pressure sensor with a small measuring range), the overall accuracy is jointly determined by the position measuring module with extremely high resolution and the high-precision pressure sensor with a small measuring range, thereby achieving a measurement accuracy in the millimeter or even submillimeter range. With reference to Fig. 2, a flowchart of the steps of a water level monitoring device provided by some embodiments of the present invention is shown, in particular the following steps may be included: Step 201: Acquiring the preset vertical height, the preset inclination, the preset pressure value and the real-time pressure data from the pressure sensor. In step 201, the procedure can utilize the intelligent control module of the water level monitoring device. First, the entire intelligent control module can be initialized, and a preset pressure value P_set can be defined within the optimal pressure measurement range of the high-precision, small-range pressure sensor, ensuring the sensor operates within this optimal range. Subsequently, the intelligent control module can detect the vertical height h0 and slope i preset during the water level monitoring device installation and read the real-time pressure data P_meas from the high-precision, small-range pressure sensor. Step 202: Determining the preset immersion depth, which corresponds to the preset pressure value. In step 202, the water depth corresponding to the preset pressure value can be calculated based on this preset pressure value, which corresponds to the preset immersion depth h_set of the pressure sensor. Step 203: Adjusting the position of the pressure sensor based on the real-time pressure data and the preset pressure value so that the pressure sensor remains at the preset immersion depth in the water being measured; In step 203, the intelligent control module can use the real-time pressure data from the pressure sensor and the preset pressure value to calculate the deviation between the real-time pressure data P_meas and the preset pressure value P_set at the preset immersion depth of the pressure sensor and send corresponding control commands to the servo drive module according to the sign and magnitude of the deviation. This causes the servo drive module to drive the sliding block support platform to move upwards or downwards on the guide rail structure in order to move the pressure sensor up or down (i.e., the position of the pressure sensor is adjusted). In this way, the deviation between the preset pressure value and the real-time pressure data of the pressure sensor is reduced. Continuous control and adjustment by the intelligent control module ensures that the high-precision pressure sensor with a small measuring range remains at the preset immersion depth in the water being measured, so that the high-precision pressure sensor with a small measuring range always operates within the optimal pressure measuring range. Step 204: Capturing the first distance between the sliding block support platform and the second end of the guide rail structure. In step 204, the intelligent control system can read the data from the high-precision position measuring module synchronously and in real time to determine the relative distance Z_slider between the bottom of the sliding block support platform and the bottom of the guide rail structure, i.e., the first distance between the sliding block support platform and the second end of the guide rail structure. Step 205: Determining the water level of the body of water to be measured based on the preset immersion depth, the preset vertical height, the preset slope, and the first distance. In step 205, the intelligent control module can perform calculations based on the preset immersion depth h_set, the preset vertical height h0, the preset inclination i and the first distance Z_slider to determine the water level H_water. In some embodiments of the present application, determining the water level of the body of water to be measured based on the preset immersion depth, the preset slope, the preset vertical height and the first distance comprises the following: Substep 21: Determining the first vertical height based on the preset slope and the first distance. In sub-step 21, in connection with Fig. 1, the relationship between the inclination angle A of the guide rail and the preset inclination can be expressed as i = tan(A); therefore, the first vertical height h_slider can be determined based on the preset inclination i and the first distance Z_slider. In particular, this can be calculated using the formula h_slider = Z_slider * sin[arctan(i)]. Step 22: Adding the first vertical height, the preset immersion depth and the preset vertical height to obtain the water level of the body of water to be measured. In step 22, the first vertical height, the preset immersion depth, and the preset vertical height are added to obtain the water level of the body of water being measured. Specifically, this addition can be performed using the formula H_water = h0 + h_slider + h_set. As an example in practical application, it is assumed that a reservoir with a maximum water level fluctuation of 100 meters is to be monitored, with a measurement accuracy of ±1 mm required. For the guide rail structure, a 110-meter-long rigid guide rail can be installed in this reservoir. Its lower end (second end) can be attached below the reservoir's lowest water level, while the attachment point of the upper end (first end) is located above the reservoir's highest water level. This allows the guide rail structure to cover the reservoir's range of water level fluctuations. The lower end of the guide rail is installed at a pre-set vertical distance h0 = 50 m from the reservoir's bottom, determined by precise measurements. The upper end of the guide rail structure is rigidly attached to a supporting structure. The guide rail structure is mounted with a pre-set inclination i = 1:2. For the servo drive module, a servo motor of protection class IP67 can be selected, which is combined with a precision ball screw or a rack and pinion structure to drive the sliding support platform for movement on the guide rail structure. A magnetic measuring tape system with a resolution of 0.1 mm can be installed along the entire length of the guide rail structure for the position measuring module. For the pressure sensor, a highly stable diffusion silicon pressure sensor with a measuring range of 0 to 0.02 MPa and an accuracy of ±0.05 % FS (i.e. ±1 × 10^(-5) MPa) can be selected. For the intelligent control module, an embedded industrial controller (PLC or special circuit) can be used, where the preset pressure value P_set = 0.005 MPa is set and the corresponding preset immersion depth h_set = 0.5 m is calculated. After the device is commissioned, the intelligent control module uses the servo drive module to control the sliding block support platform, moving it along the rigid guide rail until the pressure sensor registers a value of 0.005 MPa. Thereafter, the intelligent control module dynamically adjusts the position of the sliding block support platform via a closed-loop control system, regardless of fluctuations in the water level, ensuring that the pressure value remains consistently stable and close to the preset value. A PID (Proportional-Integral-Derivative Control Algorithm) algorithm can be used for this closed-loop control. At this point, the intelligent control module reads the data from the magnetic measuring system (i.e., the data from the position measuring module). Assuming Z_slider = 155.325 m, the current water level H_water of the reservoir can be calculated as follows: Since the resolution of the magnetic measuring tape system is 0.1 mm and the absolute error of the pressure sensor at this position is well below 1 mm, the water level determined by the intelligent control unit easily achieves an accuracy in the millimeter range. In one embodiment of the present invention, the preset vertical height, the preset inclination, the preset pressure value, and the real-time pressure data of the pressure sensor are recorded; the preset immersion depth, which corresponds to the preset pressure value, is recorded; the position of the pressure sensor is adjusted based on the real-time pressure data and the preset pressure value so that the pressure sensor remains at the preset immersion depth in the water to be measured; the first distance between the sliding block support platform and the second end of the guide rail structure is recorded; and the water level of the water to be measured is determined based on the preset immersion depth, the preset vertical height, the preset inclination, and the first distance.This ensures that the pressure sensor always operates within a fixed, optimal low-pressure range, significantly reducing the effects of temperature drift, nonlinear errors, and other factors, resulting in far superior long-term stability compared to permanently installed pressure sensors with a large measuring range. Furthermore, maintaining a fixed, preset pressure value at a specific depth below the water's surface effectively prevents the direct effects of waves and foam on the surface, leading to more stable measurement results. Furthermore, by separating the measurement tasks with a large measuring range (which are performed by the guide rail structure and the position measuring module) from the high-precision measurement tasks (which are performed by the pressure sensor with a small measuring range), the overall accuracy is jointly determined by the position measuring module with extremely high resolution and the high-precision pressure sensor with a small measuring range, thereby achieving a measurement accuracy in the millimeter or even submillimeter range. It should be noted that, for the sake of simplicity, the embodiments of the method are all presented as a series of combinations of actions. However, those skilled in the art should be aware that the embodiments of the present invention are not limited by the sequence of the described actions, since certain steps can be performed in a different sequence or simultaneously according to the embodiments of the present invention. Secondly, those skilled in the art should also be aware that the embodiments described are preferred embodiments and that the actions in question are not strictly necessary for the embodiments of the present invention. In the embodiment of the present application, a water level monitoring device can be a standalone device or a component, integrated circuit, or chip in an end device. This device can be a mobile electronic device or a non-mobile electronic device. For example, mobile electronic devices can be mobile phones, tablet computers, laptops, handheld computers, vehicle electronics, wearables, ultra-mobile personal computers (UMPCs), netbooks, or personal digital assistants (PDAs); non-mobile electronic devices can be servers, network-attached storage (NAS), personal computers (PCs), televisions (TVs), ATMs, or self-service machines; the embodiments of the present application do not impose any particular restrictions. In the embodiment of the present application, a water level monitoring device can be a device with an operating system. This operating system can be the Android operating system, the iOS operating system, or any other possible operating system; the embodiments of the present application do not impose any particular restrictions. A water level monitoring device provided by the embodiment of the present application is capable of performing the individual steps of a water level monitoring procedure shown in Fig. 2 of the embodiment of the method; to avoid repetition, this will not be discussed further here. An embodiment of the present invention provides a water level monitoring device comprising: a guide rail structure arranged at a preset inclination in the water to be measured, a sliding block support platform slidably mounted on the guide rail structure, a pressure sensor fixedly mounted on the sliding block support platform, a servo drive module, a position measuring module, and an intelligent control module; wherein the first end of the guide rail structure is arranged above the water to be measured and the second end of the guide rail structure is fixedly mounted at a preset vertical height above the underside of the water to be measured; wherein the servo drive module serves to move the sliding block support platform along the guide rail structure;wherein the position measuring module serves to measure the first distance between the sliding block support platform and the second end of the guide rail structure; wherein the intelligent control module serves to control the servo drive module on the basis of the pressure data from the pressure sensor so that the pressure sensor remains at the preset immersion depth in the water to be measured, and to calculate the water level of the water to be measured based on the preset slope, the first distance, the preset vertical height and the preset immersion depth. This ensures that the pressure sensor always operates within a fixed, optimal low-pressure range, significantly reducing the effects of temperature drift, nonlinear errors, and other factors. Long-term stability is far superior to that of permanently installed pressure sensors with a large measuring range. Furthermore, maintaining a fixed, preset pressure value at a specific depth below the water's surface effectively prevents the direct effects of waves and foam on the surface, resulting in more stable measurements. Optionally, an embodiment of the present application further provides an electronic device comprising a processor 310, a memory 309, and programs or instructions stored in the memory 309 and executable on the processor 310, wherein, when the programs or instructions are executed by the processor 310, each operation of the above embodiment of the water level monitoring method is implemented, and the same technical effect can be achieved; to avoid repetition, this will not be discussed further here. It should be noted that in the embodiments of the present application, the electronic device includes the mobile and non-mobile electronic devices mentioned above. Fig. 3 shows a schematic diagram of the hardware structure for realizing an electronic device in an embodiment of the present application. The electronic device 300 comprises, but is not limited to: an RF unit 301, a network module 302, an audio output unit 303, an input unit 304, a sensor 305, a display unit 306, a user input unit 307, an interface unit 308, a memory 309, a processor 310, and other components. The user input unit 307 comprises a touch panel 3071 and other input devices 3072, the display unit 306 comprises a display panel 3061, and the input unit comprises a graphics processor 3041 and a microphone 3042. Experts in this field will understand that the electronic device 300 may also include a power supply (e.g., a battery) that provides power to the individual components. The power supply may be logically connected to the processor 310 via a power supply management system, enabling functions such as charging and discharging, as well as energy consumption management. The structure of the electronic device shown in Fig. 3 does not represent a limitation of the electronic device; the electronic device may include more or fewer components than shown, combine certain components, or have a different component arrangement, which will not be discussed in detail here. An embodiment of the present application further provides a readable storage medium on which programs or instructions are stored, wherein, when the programs or instructions are executed by the processor, each operation of the above embodiment of the water level monitoring method is implemented, and the same technical effect can be achieved; to avoid repetition, this will not be discussed further here. The processor is the processor in the electronic device as described in the exemplary embodiments mentioned above. The readable storage medium includes computer-readable storage media, such as read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk. An embodiment of the present application further provides a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and wherein the processor serves to execute programs or instructions to implement each operation of the above embodiment of the water level monitoring method; furthermore, the same technical effect can be achieved; to avoid repetition, this will not be discussed further here. It is understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system or system-on-a-silicon chip. It should be noted that in the description, the technical terms "comprise," "exhibit," or other variants cover a non-exclusive concept of inclusion, so that a process, procedure, object, or device comprising a series of elements includes both such elements and other elements not explicitly listed or inherent elements of that process, procedure, object, or device. If no further restrictions apply, the phrase "comprises a..." does not preclude the existence of other identical elements within a process, procedure, object, or device that includes that element.Furthermore, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to the execution of functions in the sequence shown or discussed above, but may also include the execution of functions in a substantially simultaneous manner or in reverse order, according to the functions concerned; for example, the described method may be carried out in a different sequence than described, and various steps may be added, omitted, or combined. Moreover, features described with reference to certain examples may be combined in other examples. The user information (including, but not limited to, information about user devices, personal user data, etc.) and data (including, but not limited to, data for analysis, stored data, displayed data, etc.) addressed in this application are all information and data that are duly authorized by the user or the parties involved, and the collection, use, and processing of the relevant data must comply with the applicable laws, regulations, and standards of the respective countries and regions; furthermore, a suitable access point must be provided through which the user can grant or refuse authorization. Based on the above description of the embodiments, a person skilled in the art can clearly see that the aforementioned embodiments can be implemented using software in conjunction with a required general hardware platform; of course, implementation using hardware is also possible, but in many cases the former approach represents the superior embodiment. Based on this understanding, the technical solution approach of the present application, or rather the part that contributes to the prior art, can be expressed in the form of a software product.This computer software product is stored on a storage medium (such as ROM / RAM, hard disk, CD-ROM) and comprises a series of commands that cause an end device (for example, a mobile phone, a computer, a server, an air conditioner or a network device) to execute the methods described in the individual embodiments of the present application. The embodiments of the present application are described above in conjunction with the accompanying drawings; however, the present application is not limited to the specific embodiments mentioned above. The specific embodiments mentioned above serve only for illustration and are not limiting. A person skilled in the art in this field, inspired by the present application, can develop many further forms, all of which fall within the scope of protection of the present application, without departing from the purpose of the present application and the scope protected by the claims.

Claims

Water level monitoring device, characterized in that the device comprises: a guide rail structure arranged in the water to be measured with a preset inclination, a sliding block support platform slidably attached to the guide rail structure, a pressure sensor fixedly mounted on the sliding block support platform, a servo drive module, a position measuring module and an intelligent control module.wherein the first end of the guide rail structure is positioned above the water body to be measured and the second end of the guide rail structure is fixed at a preset vertical height above the underside of the water body to be measured; wherein the servo drive module serves to move the sliding block support platform along the guide rail structure; wherein the position measurement module serves to measure the first distance between the sliding block support platform and the second end of the guide rail structure; wherein the intelligent control module serves to control the servo drive module on the basis of the real-time pressure data from the pressure sensor so that the pressure sensor in the water body to be measured maintains a preset pressure value, and to calculate the water level of the water body to be measured based on the preset slope, the first distance, the preset vertical height and the preset pressure value. Device according to claim 1, characterized in that the first end of the guide rail structure is fixedly attached to a structure located above the water to be measured, wherein the servo drive module is fixedly attached to a part of the guide rail structure which is located above the water to be measured. Device according to claim 1, characterized in that the position measuring module is fixedly attached to the guide rail structure, wherein the position measuring module is one of the following: a magnetic measuring tape system and an optical measuring tape system. Device according to one of claims 1 to 3, characterized in that the device further comprises: a vent cable connected to the pressure sensor and serving to guide the reference end of the pressure sensor into the target atmosphere in order to eliminate measurement errors caused by fluctuations in air pressure. Device according to one of claims 1 to 3, characterized in that an end of the pressure sensor facing the underside of the water to be measured is aligned with an end of the sliding block support platform facing the underside of the water to be measured. Device according to one of claims 1 to 3, characterized in that the intelligent control module is electrically connected to the servo drive module, the position measuring module and the pressure sensor. An electronic device characterized in that it comprises a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein a water level monitoring method for a water level monitoring device according to any one of claims 1 to 6 is implemented when the computer program is executed by the processor, the water level monitoring method comprising: detecting the preset vertical height, preset inclination, preset pressure value, and real-time pressure data of the pressure sensor; detecting the preset immersion depth corresponding to the preset pressure value; adjusting the position of the pressure sensor based on the real-time pressure data and the preset pressure value so that the pressure sensor remains at the preset immersion depth in the water being measured;Determining the first distance between the sliding block support platform and the second end of the guide rail structure; determining the water level of the body of water to be measured based on the preset immersion depth, preset vertical height, preset slope, and the first distance, in particular wherein determining the water level of the body of water to be measured based on the preset immersion depth, preset slope, preset vertical height, and the first distance comprises: determining the first vertical height based on the preset slope and the first distance; adding the first vertical height, the preset immersion depth, and the preset vertical height to obtain the water level of the body of water to be measured. A readable storage medium, characterized in that a computer program is stored in the readable storage medium, wherein a water level monitoring method for a water level monitoring device according to one of claims 1 to 6 is implemented when the computer program is executed by the processor, the water level monitoring method comprising: detecting the preset vertical height, the preset inclination, the preset pressure value, and the real-time pressure data of the pressure sensor; detecting the preset immersion depth corresponding to the preset pressure value; adjusting the position of the pressure sensor based on the real-time pressure data and the preset pressure value so that the pressure sensor remains at the preset immersion depth in the water to be measured; detecting the first distance between the sliding block support platform and the second end of the guide rail structure;Determining the water level of the body of water to be measured based on the preset immersion depth, the preset vertical height, the preset slope, and the first distance, in particular wherein determining the water level of the body of water to be measured based on the preset immersion depth, the preset slope, the preset vertical height, and the first distance comprises the following: determining the first vertical height based on the preset slope and the first distance; adding the first vertical height, the preset immersion depth, and the preset vertical height to obtain the water level of the body of water to be measured.