Novel water level observation device, transmission device and transmission system thereof

Abstract

The utility model provides a novel water level observation device, a transmission device and a transmission system thereof. The novel water level observation device comprises a distance measuring cylinder and a laser distance measuring sensor, a water through hole is formed in the distance measuring cylinder in the axis direction, a floating distance measuring block is arranged in the distance measuring cylinder, the laser distance measuring sensor is located at the top end of the distance measuring cylinder, and the laser emitting end of the laser distance measuring sensor faces the floating distance measuring block. In addition, by arranging a transmission system comprising a measuring module, a transmission module, a receiving module and a calculation module, remote measurement and automatic acquisition of the water level are achieved, and the device improves the water level observation precision. The problems that an existing water level observation device is greatly influenced by wave disturbance, high in maintenance cost, long in maintenance period and large in observation difficulty at night or in special scenes such as the field are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water level observation devices, and in particular relates to a novel water level observation device, a transmission device and a transmission system thereof. Background Art

[0002] Water level observation is an important testing task. Water level is one of the important hydrological elements of rivers and plays a key role in river flow inversion calculation and other tasks.

[0003] At present, in addition to the traditional manual water gauge that can be used for direct observation, new measuring devices such as radar, image recognition, and electronic water gauge are widely used. They focus on specific water level measurement scenarios, have a narrow application range, and have certain limitations in practical applications, such as installation difficulties, difficulty in repairing failures, and inconvenience in movement. In addition, during the flood season and non-flood season, flood and normal water season, the water level varies greatly, and the scouring and silting of the river channel changes significantly. Radar, image recognition and other devices are generally installed in fixed positions, and installation and adjustment are difficult. As the scouring and silting of the river channel changes, the test positions of radar, image recognition and other devices are relatively fixed, which is prone to flow separation, resulting in the inability to achieve normal water level observation in a specific time period, making it difficult to complete normal water level observation.

[0004] Considering the limitations of the installation location and application scenarios of radar, image recognition and other devices and their high cost, there is uncertainty in timing when used for flood measurement. For example, if there is a problem with the radar water level gauge, on-site installation or maintenance will often delay the timing of measuring flood flow and cause losses. Therefore, in the current flood test practice, water level observation still retains manual water gauge readings as a last resort.

[0005] However, when there are obvious changes in scouring and siltation, or when high-frequency water level observations are required at night, in rainy days, in foggy weather, or when floods occur, traditional manual water gauge water level observations are difficult and involve certain safety risks, greatly increasing the workload and difficulty of testers. Utility Model Content

[0006] The utility model provides a novel water level observation device, a transmission device and a transmission system thereof to solve the problems of unsatisfactory water level measurement effect and water level measurement safety in existing flood tests.

[0007] The technical solution of the utility model is:

[0008] A novel water level observation device comprises a distance measuring tube and a laser distance measuring sensor; the distance measuring tube is provided with at least one row of water through holes along the axial direction, a floating distance measuring block is provided inside the distance measuring tube, the laser distance measuring sensor is located at the top end of the distance measuring tube, and the laser emitting end of the laser distance measuring sensor faces the floating distance measuring block.

[0009] Preferably, the novel water level observation device also includes an annular bracket, a fixed ring and a leveling instrument, the leveling instrument includes leveling feet and an adjustment surface, the leveling feet are located below the circumference of the adjustment surface, the leveling feet of the leveling instrument are located above the fixed ring, the fixed ring is located on the upper side of the annular bracket, the annular bracket is located on the top of the ranging tube, and the laser ranging sensor is fixed to the bottom of the adjustment surface of the leveling instrument.

[0010] Preferably, the distance measuring tube is provided with scale lines in the vertical direction.

[0011] Preferably, the bottom cut of the ranging tube is an oblique cut.

[0012] Preferably, the floating distance measuring block is a cylinder, the diameter of the floating distance measuring block is slightly smaller than the inner diameter of the distance measuring tube, the density of the floating distance measuring block is smaller than the density of water, and a reflector flush with the upper side of the floating distance measuring block is embedded on the upper side of the floating distance measuring block.

[0013] A novel water level observation and transmission device comprises a wireless Internet of Things controller, a remote cloud server, a computer terminal and the novel water level observation device described above; the laser ranging sensor is connected to the wireless Internet of Things controller, the wireless Internet of Things controller is wirelessly connected to the remote cloud server, and the remote cloud server is installed on the computer terminal.

[0014] A novel water level observation and transmission system comprises a measuring module: using the novel water level observation device to measure the distance from a laser ranging sensor to the top surface of a floating ranging block to obtain a radio wave signal; a transmission module: the laser ranging sensor transmits the radio wave signal to a wireless Internet of Things controller, which collects, filters and amplifies the radio wave signal, converts it into a digital signal, and sends it to a remote cloud server wirelessly; a receiving module: the remote cloud server receives the digital signal and stores it in a computer terminal; and a calculating module: the computer terminal calculates the obtained digital signal through a formula to obtain water level data.

[0015] Furthermore, the water level calculation formula is as follows: Z=H-L1-LA, wherein Z is the water level, H is the elevation of the laser ranging sensor (the elevation can be obtained by leveling), L1 is the distance from the laser ranging sensor to the top surface of the floating ranging block measured by the new water level observation device, and LA is the distance from the top surface of the floating ranging block to the water surface.

[0016] Compared with the prior art, the beneficial effects of this solution are as follows:

[0017] (1) The utility model provides a new type of water level observation device, transmission device and transmission system, which apply laser ranging to river water level observation, greatly improving the observation efficiency. It is suitable for observation in harsh environments such as beach areas, outdoor areas and nighttime, avoiding the safety risks of manual water level observation, and is combined with traditional water gauge water level observation methods, making calibration and measurement convenient.

[0018] (2) The utility model provides a new type of water level observation device, transmission device and transmission system thereof, which reduces the cost and efficiency of the repair and maintenance process by arranging a distance measuring tube and a laser distance measuring sensor in combination; and solves the interference of waves, floating objects, etc. in water level observation by arranging a water hole and a floating distance measuring block, thereby improving the accuracy of water level observation.

[0019] (3) The utility model provides a new type of water level observation device, transmission device and its transmission system, which have simple and ingenious structure and clever design, and cost much lower than other observation equipment in this professional field. It has many application scenarios, strong applicability and is easy to promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a schematic diagram of the main structure of a new type of water level observation and transmission device;

[0022] Figure 2 This is a schematic diagram of the structure of a new type of water level observation and transmission device viewed from above;

[0023] Figure 3 This is a schematic diagram of a new water level observation and transmission system;

[0024] Among them: 1. Distance measuring tube; 11. Water hole; 12. Scale line; 13. Floating distance measuring block; 2. Ring bracket; 3. Fixed ring; 41. Adjusting plane; 42. Leveling foot; 5. Laser distance measuring sensor; 6. Wireless Internet of Things controller. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model. It should be noted that in the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and other terms indicating direction or position relationship are based on the direction or position relationship shown in the drawings, which is only for the convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] The utility model provides a specific embodiment of a novel water level observation device, a transmission device and a transmission system thereof, such as Figure 1-3 shown.

[0028] A novel water level observation device comprises a distance measuring tube 1 and a laser distance measuring sensor 5; the distance measuring tube 1 is provided with at least one row of water through holes 11 along the axial direction, a floating distance measuring block 13 is provided inside the distance measuring tube 1, the laser distance measuring sensor 5 is located at the top end of the distance measuring tube 1, and the laser emitting end of the laser distance measuring sensor 5 faces the floating distance measuring block 13.

[0029] With this arrangement, the floating distance measuring block 13 in the distance measuring tube 1 is measured by the laser distance measuring sensor 5 to indirectly obtain water level data. Water flows into the distance measuring tube 1 through the water hole 11. Measuring the water level of the distance measuring tube 1 can solve the problem of water wave fluctuations during the flood season and difficulty in accurate measurement.

[0030] As a further configuration of the utility model, the novel water level observation device further includes an annular bracket 2, a fixed ring 3 and a leveling instrument. The leveling instrument includes an adjustment plane 41 and at least three leveling feet 42. The adjustment plane 41 is provided with a bubble observation circle. The leveling feet 42 are located below the circumference of the adjustment plane 41. The leveling feet 42 of the leveling instrument are fixed to the upper side of the fixing ring 3 by bolts. The fixing ring 3 is fixed to the upper side of the annular bracket 2 by bolts. The annular bracket 2 is horizontally arranged and fixed to the top of the distance measuring tube 1 by bolts. The laser distance measuring sensor 5 is fixed to the bottom of the adjustment plane 41 of the leveling instrument. The inner diameters of the fixing ring 3 and the annular bracket 2 are both larger than the diameter of the distance measuring tube 1, and the diameter of the adjustment plane 41 is smaller than the diameter of the distance measuring tube 1, so as to ensure that the distance measuring path of the laser distance measuring sensor 5 to the floating distance measuring block 13 is not blocked.

[0031] Through this setting, by checking whether the bubble in the bubble observation circle of the leveling instrument is located in the center, it is convenient to evaluate whether the laser emission line is perpendicular to the water surface during use, and to assist in judging whether the range-finding tube 1 is tilted, so as to judge whether the obtained data is usable. If it is slightly tilted, it can continue to be used by adjusting the leveling foot 42. If it is seriously tilted, it should be replaced in time. At the same time, if the measuring tube is washed and tilted in the flood or the measuring position needs to be changed, the equipment can be quickly transferred by disassembling the annular bracket 2 and the fixing ring 3. By setting up another range-finding tube, the equipment installation, debugging and use can be completed again, which improves convenience and reduces costs.

[0032] As a further configuration of the utility model, the outer side of the distance measuring tube 1 is provided with a vertical distance measuring scale line 12. The scale line 12 is read from bottom to top, and the 0 scale line 12 is located at the lower part of the distance measuring tube 1. The vertical distance measuring scale line 12 can also be realized by fixing the water level scale bolt to the distance measuring tube 1, so that only some parts can be replaced when the distance measuring tube 1 or the water level scale is conveniently replaced, thereby reducing waste.

[0033] With this arrangement, the water level can be measured regularly by conventional water gauge readings and compared with the water level obtained by the laser distance sensor 5 to evaluate the accuracy of the laser distance sensor 5 during that period.

[0034] As a further configuration of the present invention, the bottom cut of the distance measuring tube 1 is an oblique cut.

[0035] This arrangement makes it convenient to bury the distance measuring tube 1 deep under water.

[0036] As a further configuration of the present invention, the floating ranging block 13 is a cylinder, the diameter of the floating ranging block 13 is slightly smaller than the inner diameter of the ranging tube 1, the density of the floating ranging block 13 is less than the density of water, and the upper side of the floating ranging block 13 is flush with the reflector on the upper side of the floating ranging block 13.

[0037] By arranging the floating distance measuring block 13 and the reflector, the distance measurement of the laser distance measuring sensor 5 is more sensitive.

[0038] In addition, the floating distance measuring block 13 has a certain height to prevent the floating distance measuring block 13 from tipping over.

[0039] As a further configuration of the present invention, the water hole 11 is covered with a filter, or the water hole 11 should be as small as possible while ensuring water flow, and the water hole 11 is lateral or along the direction of water flow.

[0040] This arrangement can prevent the water hole 11 from being blocked by debris such as aquatic plants, avoid the influence of water waves, and improve the distance measurement accuracy.

[0041] A novel water level observation and transmission device comprises a wireless Internet of Things controller 6, a remote cloud server, a computer terminal and the novel water level observation device described above; the laser ranging sensor 5 is connected to the wireless Internet of Things controller 6, the wireless Internet of Things controller 6 is connected and fixed on the fixing ring 3, the wireless Internet of Things controller 6 is wirelessly connected to the remote cloud server, and the remote cloud server is installed on the computer terminal. The computer sends a measurement instruction to the wireless Internet of Things controller 6 through the cloud server, and the wireless Internet of Things controller 6 transmits the measurement signal to the laser ranging sensor 5, and the laser ranging sensor 5 performs measurement to obtain measurement data.

[0042] A novel water level observation and transmission system comprises a measuring module: using the novel water level observation device to measure the distance from a laser ranging sensor 5 to the top surface of a floating ranging block 13 to obtain a radio wave signal; a transmission module: the laser ranging sensor 5 transmits the radio wave signal to a wireless Internet of Things controller 6, which collects, filters and amplifies the radio wave signal, converts it into a digital signal, and sends it to a remote cloud server wirelessly; a receiving module: the remote cloud server receives the digital signal and stores it in a computer terminal; and a calculating module: the computer terminal calculates the obtained digital signal through a formula to obtain water level data.

[0043] Further, the water level calculation formula is as follows: Z = H-L1-LA, where Z is the water level, H is the elevation of the laser ranging sensor 5 (the elevation can be obtained by leveling), L1 is the distance from the laser ranging sensor 5 to the top surface of the floating ranging block 13 measured by the new water level observation device, and LA is the distance from the top surface of the floating ranging block 13 to the water surface. In addition, if the water level is known, the elevation of the laser ranging sensor can be derived by H = L1 + LA + Z, reducing the measurement process.

[0044] Through this setting, long-distance water level observation can be achieved, which improves convenience and safety.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of water level observation device, characterized in that: It includes a distance measuring tube and a laser distance measuring sensor; the distance measuring tube is provided with at least one row of water holes along the axial direction, a floating distance measuring block is provided in the distance measuring tube, the laser distance measuring sensor is located at the top of the distance measuring tube, and the laser emitting end of the laser distance measuring sensor faces the floating distance measuring block.

2. The novel water level observation device according to claim 1 is characterized in that: It also includes an annular bracket, a fixing ring and a leveler, the leveler includes a leveling foot and an adjustment surface, the leveling foot is located below the peripheral side of the adjustment surface, the leveling foot of the leveler is located above the fixing ring, the fixing ring is located on the upper side of the annular bracket, the annular bracket is located on the top of the distance measuring tube, and the laser distance measuring sensor is fixed to the bottom of the adjustment surface of the leveler.

3. The novel water level observation device according to claim 1 is characterized in that: The distance measuring tube is provided with scale lines in the vertical direction.

4. The novel water level observation device according to claim 2 is characterized in that: The bottom cut of the distance measuring tube is an oblique cut.

5. The novel water level observation device according to claim 2 is characterized in that: The floating distance measuring block is a cylinder, the density of which is less than that of water, and a reflector flush with the upper side of the floating distance measuring block is embedded on the upper side of the floating distance measuring block.

6. A new type of water level observation and transmission device, characterized in that: It includes a wireless Internet of Things controller, a remote cloud server, a computer terminal and a new water level observation device as described in any one of claims 1 to 5; the laser ranging sensor is connected to the wireless Internet of Things controller, the wireless Internet of Things controller is fixed on the new water level observation transmission device, the wireless Internet of Things controller is wirelessly connected to the remote cloud server, and the remote cloud server is installed on the computer terminal.

7. A new water level observation and transmission system, characterized in that: The novel water level observation and transmission device according to claim 6 comprises a measuring module: using the novel water level observation device to measure the distance from the laser ranging sensor to the top surface of the floating ranging block to obtain a radio wave signal; a transmission module: the laser ranging sensor transmits the radio wave signal to the wireless Internet of Things controller, and the wireless Internet of Things controller collects, filters, and amplifies the radio wave signal, converts it into a digital signal, and sends it to a remote cloud server by wireless means; a receiving module: the remote cloud server receives the digital signal and stores it in a computer terminal; Computation module; The computer terminal calculates the obtained digital signal through a formula to obtain water level data.

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