Desert flood monitoring sensor
By designing a desert flood monitoring sensor including a shell, filter mesh structure, sand column and measurement electrode, the problems of difficult data analysis and high cost of monitoring equipment in the prior art are solved, and low-cost and efficient desert flood monitoring and early warning are achieved.
Patent Information
- Application Number
- CN202421377770.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The existing technology has problems such as difficult data analysis and high-quality monitoring equipment in the monitoring of desert flood disasters.
A desert flood monitoring sensor was designed, including a shell, a filter mesh structure, a sand column and a measurement electrode. The impurities were filtered through the filter mesh, and the sand column formed a solid-liquid mixture. The measurement electrode detected the flow potential difference to judge the liquid flow rate.
It realizes desert flood monitoring with simple structure and low monitoring costs, and can promptly warn of flood hazards, reducing monitoring difficulties and costs.
Smart Images
Figure CN222733620U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of desert flood disaster monitoring, in particular to a desert flood monitoring sensor. Background Art
[0002] In recent years, due to the northward shift of the rainfall belt and the intensification of snow-capped mountains, geological disasters have occurred frequently. In addition, some desert areas have also seen rare floods. These disasters have not only caused irreversible impacts on the fragile local ecological environment, but also caused significant losses to the lives and property of residents.
[0003] Common geological disaster early warning methods at home and abroad are as follows:
[0004] (1) Satellite remote sensing technology and geographic information systems, based on the comprehensive progress of multiple disciplines such as geography, computer science, and engineering;
[0005] (2) Mathematical modeling methods, which are based on but not limited to theories and methods such as physical principles, statistical analysis, empirical relationships, and computer simulation;
[0006] (3) Resistivity method: This is a geophysical research method that uses the differences in electrical conductivity of different underground layers to solve geological problems by measuring the resistivity distribution of each layer.
[0007] Although traditional methods have become relatively mature in the field of geological disaster early warning applications, they also have many problems such as difficulty in data analysis and high cost of high-quality monitoring equipment. Utility Model Content
[0008] In view of this, the utility model provides a desert flood monitoring sensor, the main purpose of which is to provide a monitoring sensor with a simple structure, reduce monitoring costs, and reduce monitoring difficulty.
[0009] In order to achieve the above purpose, the utility model mainly provides the following technical solutions:
[0010] The utility model provides a desert flood monitoring sensor, which comprises: a shell and a monitoring part;
[0011] Both ends of the shell are provided with filter structures for filtering impurities in the fluid;
[0012] The monitoring part includes a sand column and two measuring electrodes located in the shell. The two measuring electrodes are respectively located at opposite ends of the sand column. An axial channel is provided in the sand column. A potential measuring mechanism is installed in the axial channel. The potential measuring mechanism is electrically connected to the two measuring electrodes respectively, and is used to monitor the potential value between the two measuring electrodes.
[0013] The purpose of the utility model and the solution to its technical problems can also be further achieved by adopting the following technical measures.
[0014] Optionally, it further includes a data storage mechanism and a signal transmitter, wherein the data storage mechanism is installed in a closed ring cavity on the end side of the shell, and the potential measuring mechanism, the data storage mechanism and the signal transmitter are electrically connected in sequence.
[0015] Optionally, it also includes a solar panel and a battery, and the solar panel, the battery and the potential measuring mechanism are electrically connected in sequence.
[0016] Optionally, the filter screen structure includes a grid and a gauze arranged in sequence.
[0017] Optionally, the measuring electrode adopts a spiral structure.
[0018] Optionally, the measuring electrode is made of Ag / AgCl material.
[0019] By means of the above technical solution, the utility model has at least the following advantages:
[0020] When using this sensor, bury the shell 5-10cm below the surface in flood-prone areas, such as under the snow, on the banks of desert rivers, etc. When liquid flows along the axial direction of the shell, the filter structure intercepts impurities in the liquid, and the liquid flows through the sand in the sand column to form a solid-liquid mixture. A double electric layer structure will be formed on the interface of the solid-liquid two-phase system formed by the sand and the ion solution. The dynamic instability of the two-phase system will generate a significant streaming potential, thereby generating a potential difference between the two measuring electrodes.
[0021] The potential measuring mechanism in the axial channel obtains the potential difference in time, converts it into an electrical signal, and transmits it to the data processing terminal, and finally converts the electrical signal into the instantaneous flow rate of the liquid, so as to determine whether a flood will occur in the area where the sensor is located. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A schematic diagram of the structure of a desert flood monitoring sensor provided by an embodiment of the utility model;
[0023] Figure 2 for Figure 1 The view from AA in the middle.
[0024] The figure marks in the drawings of the specification include: grille 1, mesh 2, shell 3, measuring electrode 5, sand column 6, axial channel 7, potential measuring wire 8, potential measuring mechanism 9, transmission line 10, data transmission line 11, battery 12, data storage mechanism 13, closed ring cavity 14, solar panel 15, signal transmitter 16. DETAILED DESCRIPTION
[0025] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the specific implementation methods, structures, features and effects of the utility model application are described in detail below in conjunction with the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "embodiment" does not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.
[0026] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0027] like Figure 1 As shown, an embodiment of the utility model provides a desert flood monitoring sensor, which includes: a housing 3 and a monitoring part;
[0028] The two ends of the housing 3 are provided with filter structures for filtering impurities in the fluid;
[0029] The monitoring part includes a sand column 6 and two measuring electrodes 5 located in the shell 3. The two measuring electrodes 5 are respectively located at opposite ends of the sand column. An axial channel 7 is provided in the sand column. A potential measuring mechanism 9 is installed in the axial channel 7. The potential measuring mechanism 9 is electrically connected to the two measuring electrodes 5 respectively, and is used to monitor the potential value between the two measuring electrodes 5.
[0030] A desert flood monitoring sensor works as follows:
[0031] When using the sensor, the housing 3 is buried 5-10 cm below the surface in flood-prone areas, such as under the snow, on the banks of rivers in deserts, etc. When liquid flows along the axial direction of the housing 3, the filter structure intercepts impurities in the liquid, and the liquid flows through the sand in the sand column 6 to form a solid-liquid mixture. A double electric layer structure is formed on the interface of the solid-liquid two-phase system formed by the sand and the ion solution. The dynamic instability of the two-phase system will generate a significant streaming potential, thereby generating a potential difference between the two measuring electrodes 5.
[0032] The potential measuring mechanism 9 in the axial channel 7 timely obtains the potential difference, converts it into an electrical signal, and transmits it to the data processing terminal, and finally converts the electrical signal into the instantaneous flow rate of the liquid, so as to achieve the purpose of judging whether a flood will occur in the area where the sensor is located.
[0033] In the technical solution of the utility model, the sensor has a simple structure and a low monitoring cost. The monitored electrical signal data is transmitted to the data processing terminal in a timely manner, and a flood danger can be warned in a timely manner.
[0034] Specifically, the insulating plastic tube is sealed in the sand column 6 to form an axial channel 7; the shell 3 is made of insulating plastic material to prevent the electromotive force generated by the two-phase kinetic instability of the sand column 6 and the ion solution in the shell 3 from disappearing due to leakage of the shell 3.
[0035] Specifically, the sand used to fill the sand column 6 is the local sand in the flood-prone monitoring area.
[0036] Specifically, the potential measuring mechanism 9 adopts a small digital voltage and current meter, model DHC1P, and the potential measuring mechanism 9 is connected to the measuring electrodes 5 through the potential measuring wires 8.
[0037] like Figure 1 As shown, in a specific embodiment, it also includes a data storage mechanism 13 and a signal transmitter 16. The data storage mechanism 13 is installed in a closed ring cavity 14 on the end side of the shell 3. The potential measuring mechanism 9, the data storage mechanism and the signal transmitter are electrically connected in sequence.
[0038] In this embodiment, specifically, a bracket is installed above the surface of the sensor location, the data storage mechanism 13 uses an industrial waterproof grade SD card, the data storage mechanism 13 is arranged in a closed ring cavity 14 on the end side of the shell 3, and the signal transmitter 16 is installed on the upper end of the bracket. Through the above arrangement, the acquired potential difference electrical signal can be timely wirelessly transmitted to the data processing terminal.
[0039] Specifically, the potential measuring mechanism 9 , the data storage mechanism 13 and the signal transmitter 16 are electrically connected in sequence via a data transmission line 11 .
[0040] like Figure 1 As shown, in a specific embodiment, a solar panel 15 and a battery 12 are also included, and the solar panel 15, the battery 12 and the potential measuring mechanism 9 are electrically connected in sequence.
[0041] In this embodiment, the photovoltaic components of the solar panel 15 convert solar energy into electrical energy and store it in the battery 12, which serves as an energy storage and power supply device.
[0042] Specifically, the solar panel 15 , the storage battery 12 and the potential measuring mechanism 9 are connected in sequence through the transmission line 10 .
[0043] like Figure 1 As shown, in a specific embodiment, the filter screen structure includes a grille 1 and a gauze screen 2 arranged in sequence.
[0044] In this embodiment, specifically, the grille 1 serves as the first filtering barrier when the liquid flows through the interior of the sensor, and can block possible impurities (larger rocks, branches, etc.) outside the sensor, thereby improving the measurement stability and protecting the durability of the sensor; the gauze 2 serves as the second filtering barrier when the liquid flows through the interior of the sensor, and can block fine sand particles carried by the liquid flow outside the sensor.
[0045] like Figure 2 As shown, in a specific implementation, the measuring electrode 5 adopts a spiral structure.
[0046] In this embodiment, specifically, the measuring electrode 5 is formed by winding a strip into a planar spiral structure, and the liquid passes through the gaps in the spiral structure without forming resistance to the flow of the liquid. At the same time, the contact area between the measuring electrode 5 and the liquid is increased, thereby improving the accuracy of the potential difference measurement.
[0047] Specifically, the spiral center portion of the measuring electrode 5 seals the end surface of the axial channel 7 to prevent the fluid from entering the axial channel 7 .
[0048] In a specific implementation, the measuring electrode 5 is made of Ag / AgCl material.
[0049] In this embodiment, specifically, the measuring electrode 5 is made of Ag / AgCl material, which is easily available in the market, has a low cost, and is suitable for mass production and application of the sensor.
[0050] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A desert flood monitoring sensor, characterized in that: include: A housing, wherein both ends of the housing are provided with filter structures for filtering impurities in the fluid; The monitoring part includes a sand column and two measuring electrodes located in the shell, the two measuring electrodes are respectively located at opposite ends of the sand column, an axial channel is provided in the sand column, a potential measuring mechanism is installed in the axial channel, the potential measuring mechanism is respectively electrically connected to the two measuring electrodes, and is used to monitor the potential value between the two measuring electrodes.
2. The desert flood monitoring sensor according to claim 1, characterized in that: It also includes a data storage mechanism and a signal transmitter. The data storage mechanism is installed in a closed ring cavity on the end side of the shell. The potential measuring mechanism, the data storage mechanism and the signal transmitter are electrically connected in sequence.
3. The desert flood monitoring sensor according to claim 1, characterized in that: It also includes a solar panel and a storage battery, wherein the solar panel, the storage battery and the potential measuring mechanism are electrically connected in sequence.
4. The desert flood monitoring sensor according to claim 1, characterized in that: The filter screen structure comprises a grid and a gauze screen which are arranged in sequence.
5. The desert flood monitoring sensor according to claim 1, characterized in that: The measuring electrode adopts a spiral structure.
6. The desert flood monitoring sensor according to any one of claims 1 to 5, characterized in that: The measuring electrode is made of Ag / AgCl material.