Self-calibration underground water intelligent monitoring device
By using a self-calibrating intelligent groundwater monitoring device, the liquid level sensor is automatically calibrated using a motor-driven tape measure and a weight system. This solves the problems of data drift and high costs associated with manual calibration, and achieves high-precision, low-cost groundwater level monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2026-04-07
AI Technical Summary
Existing groundwater level monitoring equipment suffers from data drift, resulting in inaccurate measurement data. Furthermore, manual calibration is costly and prone to errors.
Design a self-calibrating intelligent groundwater monitoring device that uses a motor-driven tape measure and a weight system to automatically calibrate the liquid level sensor, and combines solar power and a telemetry terminal to achieve automatic data calibration.
It improves measurement accuracy, reduces the cost of manual calibration and the risk of operational errors, and achieves automated and accurate groundwater level monitoring.
Smart Images
Figure CN224095223U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to underground water monitoring technical field relates to a kind of self-calibration underground water intelligent monitoring device. BACKGROUND
[0002] The existing underground water level monitoring equipment is monitored by liquid level sensor, and the monitoring data is sent to the data platform of the national underground water supervision department through wireless remote telemetry terminal RTU at regular intervals. Since the existing sensor has data drift phenomenon, the data will drift every period of time (such as one month), resulting in deviation (larger or smaller) between the measured data and the actual data, which does not meet the accuracy requirement of underground water monitoring. In order to eliminate the deviation, the current scheme is to send maintenance personnel to the monitoring site regularly, and manually measure the actual water level using a portable water level measuring instrument, and manually adjust the sensor parameters to make the output data consistent with the measured data. However, manual calibration has the following problems:
[0003] 1) Maintenance personnel need to measure on site regularly, resulting in a large amount of traffic, travel and construction costs. There are thousands of monitoring points in each province and city in China, and the cost of each manual calibration is huge, which greatly wastes national resources.
[0004] 2) Due to the uneven level and skill of the operators, operation errors may occur, resulting in inaccurate measured data.
[0005] Therefore, a self-calibration underground water intelligent monitoring device is urgently needed. UTILITY MODEL CONTENT
[0006] Therefore, the utility model provides a kind of self-calibration underground water intelligent monitoring device to solve the problems raised in the above background technology, and specifically discloses the following contents:
[0007] A kind of self-calibration underground water intelligent monitoring device, including cylinder, the top of the cylinder is connected with upper cover, the bottom of the cylinder is fixedly connected to the well mouth of underground water by base, the base is equipped with detection port, one side of the inside of the cylinder is equipped with drop-in liquid level sensor, the probe of the drop-in liquid level sensor passes through the detection port and is immersed in underground water, the other side of the inside of the cylinder is equipped with motor, the output end of the motor is fixedly connected with winding disc, the winding disc is equipped with placing groove, the winding disc is wound with measuring tape in the placing groove, the end of the measuring tape away from the winding disc is fixedly connected with weight, the weight is equipped with sensitive element;The upper cover is equipped with control mechanism, the sensitive element, the motor and the drop-in liquid level sensor are all electrically connected with the control mechanism.
[0008] Further, the control mechanism includes telemetry terminal RTU, solar power supply assembly, motor controller and motor driver;
[0009] The telemetry terminal RTU, the motor controller and the motor driver are electrically connected with the solar power supply assembly.
[0010] The motor controller is electrically connected with the motor driver, the motor driver is electrically connected with the motor, the drop-in liquid level sensor and the motor controller are electrically connected with the telemetry terminal RTU, and the sensitive element is electrically connected with the motor controller.
[0011] Further, the solar power supply assembly comprises a solar panel, a photovoltaic charging controller and a storage battery, the top of the upper cover is obliquely arranged, the solar panel is fixedly installed on the top of the upper cover, the photovoltaic charging controller and the storage battery are arranged in the upper cover, the solar panel and the storage battery are electrically connected with the photovoltaic charging controller, and the telemetry terminal RTU, the motor controller and the motor driver are electrically connected with the storage battery.
[0012] Further, the cylinder and the upper cover are connected through a hinge.
[0013] Further, the cylinder and the upper cover are connected through an electronic anti-theft lock.
[0014] The beneficial effects of the present application are as follows:
[0015] The present application periodically drives a tape measure through a motor to detect the underground water level, automatically calibrates the drop-in liquid level sensor by using the detection data, improves the measurement accuracy, and reduces the cost of manual calibration. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the provided drawings without creative labor.
[0017] Figure 1 It is a structural schematic diagram of the self-calibration underground water intelligent monitoring device.
[0018] In the drawings, the following:
[0019] 1 - base; 2 - cylinder; 3 - upper cover; 41 - solar panel; 42 - photovoltaic charge controller; 43 - battery; 5 - telemetry terminal RTU; 6 - immersion level sensor; 61 - probe; 7 - motor; 71 - motor controller; 72 - motor driver; 8 - reel; 81 - housing slot; 82 - tape measure; 83 - weight; 9 - groundwater. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.
[0021] It should be noted that the terms "first", "second", and the like in the description and claims of the present application and the above-described accompanying drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so as to describe the embodiments of the present application. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or components does not necessarily limit to those steps or components clearly listed, but can include other steps or components not clearly listed or inherent to these processes, methods, products or devices.
[0022] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.
[0023] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.
[0024] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0025] See appendix Figure 1 This utility model discloses a self-calibrating intelligent groundwater monitoring device, including a cylinder 2, a top cover 3 connected to the top of the cylinder 2, and a base 1 fixedly connected to the wellhead of a groundwater 9 at the bottom of the cylinder 2. The base 1 is provided with a detection port. An immersion-type liquid level sensor 6 is provided on one side inside the cylinder 2. The probe 61 of the immersion-type liquid level sensor 6 passes through the detection port and is immersed in the groundwater 9. A motor 7 is provided on the other side inside the cylinder 2. A measuring tape 8 is fixedly connected to the output end of the motor 7. A placement groove 81 is provided on the measuring tape 8. A measuring tape 82 is wound in the placement groove 81. A weight 83 is fixedly connected to the end of the measuring tape 82 away from the measuring tape 8. A sensitive element is provided on the weight 83. A control mechanism is provided inside the top cover 3. The sensitive element, the motor 7, and the immersion-type liquid level sensor 6 are all electrically connected to the control mechanism.
[0026] In this embodiment, the base 1 is fixedly connected to the inlet of the groundwater 9 by bolts.
[0027] In this embodiment, the control mechanism controls the motor 7 to rotate, thereby causing the measuring tape 8 to rotate. The measuring tape 82, which is placed in the placement groove 81, moves vertically downward under the action of the weight 83, passes through the detection port, and when it comes into contact with the surface of the groundwater 9, the sensitive element on the weight 83 sends a feedback signal to the control mechanism, thereby controlling the motor 7 to stop rotating and feeding back the number of rotations of the motor 7 to the control mechanism. The control mechanism calculates the distance the weight moves downward based on the number of rotations of the motor 7 and the outer diameter of the placement groove 81, and uses this data to calibrate the submersible liquid level sensor 6.
[0028] In this embodiment, the placement groove 81 is adapted to the measuring tape 82, that is, the measuring tape 82 is wound layer by layer in the placement groove 81. In order to eliminate the error caused by the layer-by-layer winding of the measuring tape 82 (because the measuring tape 82 itself has thickness, the downward movement distance of the weight 83 when the outer layer of the measuring tape 82 is released is slightly greater than the downward movement distance of the weight 83 when the inner layer of the measuring tape 82 is released), the thickness of the measuring tape 82 has been measured before the formal calibration work. Through experiments, the difference in the downward movement distance of the weight 83 corresponding to the release of each layer of the measuring tape 82 is obtained, forming a formula or curve, which is combined with the measurement calculation work to obtain accurate measurement data to improve the calibration accuracy.
[0029] The control mechanism includes a telemetry terminal RTU5, a solar power supply component, a motor controller 71, and a motor driver 72;
[0030] The remote telemetry terminal RTU5, the motor controller 71, and the motor driver 72 are all electrically connected to the solar power supply assembly.
[0031] The motor controller 71 is electrically connected to the motor driver 72, the motor driver 72 is electrically connected to the motor 7, the submersible liquid level sensor 6 and the motor controller 71 are both electrically connected to the telemetry terminal RTU5, and the sensitive element is electrically connected to the motor controller 71.
[0032] In this embodiment, the telemetry terminal RTU5 periodically sends measurement commands to the motor controller 71. The motor controller 71 drives the motor 7 to rotate through the motor driver 72. The telemetry terminal RTU5 automatically calibrates the submersible liquid level sensor 6 based on the data fed back by the motor controller 71.
[0033] The solar power supply component includes a solar panel 41, a photovoltaic charging controller 42, and a battery 43. The top of the cover 3 is tilted, and the solar panel 41 is fixedly installed on the top of the cover 3. The photovoltaic charging controller 42 and the battery 43 are located inside the cover 3. The solar panel 41 and the battery 43 are both electrically connected to the photovoltaic charging controller 42. The remote telemetry terminal RTU5, the motor controller 71, and the motor driver 72 are all electrically connected to the battery 43.
[0034] In this embodiment, the solar panel 41 absorbs light energy and converts it into electrical energy through the photovoltaic charging controller 42 and the battery 43, which is then stored in the battery 43. The battery 43 then powers the remote telemetry terminal RTU5, the motor controller 71, and the motor driver 72.
[0035] The cylinder 2 and the top cover 3 are connected by hinges.
[0036] The cylinder 2 and the top cover 3 are locked together by an electronic anti-theft lock.
[0037] The working process of this embodiment:
[0038] The telemetry terminal RTU5 sends a measurement command to the motor controller 71 every month. The motor controller 71 drives the motor 7 to rotate via the motor driver 72, thereby causing the measuring tape 82, which is placed in the placement slot 81, to rotate vertically downward under the action of the counterweight 83. When the tape measure 82 passes through the detection port and touches the surface of the groundwater 9, the sensitive element on the counterweight 83 sends a feedback signal to the motor controller 71. The motor controller 71 then controls the motor 7 to stop rotating and sends the number of rotations of the motor 7 back to the telemetry terminal RTU5.
[0039] The remote telemetry terminal RTU5 calculates the downward distance of the weight 83 based on the number of rotations of the motor 7 and the outer diameter of the placement slot 81, combined with the difference in the downward distance of the weight 83 corresponding to the release of each layer of measuring tape 82, and uses this data to calibrate the submersible liquid level sensor 6.
[0040] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A self-calibrating intelligent groundwater monitoring device, characterized in that, The device includes a cylinder (2), the top of which is connected to a cover (3), and the bottom of which is fixedly connected to the wellhead of the groundwater (9) via a base (1). The base (1) is provided with a detection port. An immersion liquid level sensor (6) is provided on one side inside the cylinder (2). The probe (61) of the immersion liquid level sensor (6) passes through the detection port and is immersed in the groundwater (9). A motor (7) is provided on the other side inside the cylinder (2). A measuring tape (8) is fixedly connected to the output end of the motor (7). A placement groove (81) is provided on the measuring tape (81). A measuring tape (82) is wound in the placement groove (81). A weight (83) is fixedly connected to the end of the measuring tape (82) away from the measuring tape (8). A sensitive element is provided on the weight (83). A control mechanism is provided inside the cover (3). The sensitive element, the motor (7), and the immersion liquid level sensor (6) are all electrically connected to the control mechanism.
2. The self-calibrating intelligent groundwater monitoring device according to claim 1, characterized in that, The control mechanism includes a telemetry terminal RTU (5), a solar power supply component, a motor controller (71), and a motor driver (72). The telemetry terminal RTU (5), the motor controller (71), and the motor driver (72) are all electrically connected to the solar power supply component; The motor controller (71) is electrically connected to the motor driver (72), the motor driver (72) is electrically connected to the motor (7), the submersible liquid level sensor (6) and the motor controller (71) are both electrically connected to the telemetry terminal RTU (5), and the sensitive element is electrically connected to the motor controller (71).
3. The self-calibrating intelligent groundwater monitoring device according to claim 2, characterized in that, The solar power supply assembly includes a solar panel (41), a photovoltaic charging controller (42), and a battery (43). The top of the cover (3) is tilted. The solar panel (41) is fixedly installed on the top of the cover (3). The photovoltaic charging controller (42) and the battery (43) are located inside the cover (3). The solar panel (41) and the battery (43) are electrically connected to the photovoltaic charging controller (42). The telemetry terminal RTU (5), the motor controller (71), and the motor driver (72) are all electrically connected to the battery (43).
4. The self-calibrating intelligent groundwater monitoring device according to claim 1, characterized in that, The cylinder (2) and the top cover (3) are connected by hinges.
5. The self-calibrating intelligent groundwater monitoring device according to claim 1, characterized in that, The cylinder (2) and the top cover (3) are locked together by an electronic anti-theft lock.