Water flow monitoring device and method

Abstract

The invention belongs to the technical field of water flow monitoring, and provides a water flow monitoring device and method.The water flow monitoring device comprises a fixing base, a plurality of inserting rods are arranged at the bottom of the fixing base, the fixing base is provided with an inner cavity, and a sliding plate is slidably connected into the inner cavity; a second electric rod is fixedly arranged between the sliding plate and the inner end face of the inner cavity, the sliding plate is rotationally connected with a supporting shaft, a driving assembly for driving the supporting shaft to rotate is arranged between the supporting shaft and the sliding plate, the supporting shaft is fixedly connected with a base, and the base is connected with an induction mechanism for monitoring the thickness of the soil layer. The electric telescopic plate is started to stretch out and draw back, the electric telescopic plate drives the sliding sleeve to ascend and descend synchronously, the flow velocity monitor is fixedly connected with the sliding sleeve, and the flow velocity monitor can move to any depth of the river channel to measure the water flow velocity.

Description

Technical Field

[0001] The present invention belongs to the technical field of water flow monitoring, and in particular relates to a water flow monitoring device and method. Background Art

[0002] The river flow monitor is an instrument used to monitor the flow and water level changes in rivers or water bodies in real time. It plays an important role in water resource management, flood warning, water conservancy project design and other fields.

[0003] A river flow monitor usually consists of multiple components, including a water level sensor, a flow rate sensor, a data acquisition system, and a communication module. The water level sensor is used to measure the water level. It can be a pressure sensor, an ultrasonic sensor, or a float sensor. The flow rate sensor is used to measure the water flow rate. Common ones include electromagnetic flow meters, flow rate measuring slots, or ultrasonic flow meters. These sensors can obtain water level and flow rate data in real time and transmit them to the data acquisition system.

[0004] When measuring with existing water flow monitoring devices, there are many pollutants in many rivers, which makes it easy for water level sensors to produce measurement errors when measuring water levels; if the water level is directly judged based on the water level line, the riverbed will be raised due to the long-term accumulation of silt at the bottom of the river, making it difficult to accurately judge the water level depth; at the same time, the existing water flow monitoring devices are easily blocked by floating objects on the water surface during measurement, making it difficult for the flow rate sensor to accurately measure the flow rate, which in turn leads to large errors in water flow measurement. Summary of the invention

[0005] The purpose of the present invention is to provide a water flow monitoring device and method, aiming to solve the technical problem in the prior art that there are many pollutants in the river channel resulting in large water flow measurement errors.

[0006] The present invention is implemented as follows: a water flow monitoring device comprises a fixed seat, a plurality of plug rods are arranged at the bottom of the fixed seat, the fixed seat is provided with an inner cavity, a slide plate is slidably connected in the inner cavity, a No. 2 electric rod is fixedly arranged between the slide plate and the inner end surface of the inner cavity, the slide plate is rotatably connected to a support shaft, a driving assembly for driving the support shaft to rotate is arranged between the support shaft and the slide plate, the support shaft is fixedly connected to a base, and the base is connected to a sensing mechanism for monitoring the thickness of the soil layer;

[0007] The base is fixedly connected with an electric telescopic plate, one end of the electric telescopic plate is slidably connected with a vertical plate, a sliding sleeve is slidably connected between the vertical plate and the electric telescopic plate, the sliding sleeve is rotatably connected with a gear, the gear is meshed with the meshing teeth on the surface of the electric telescopic plate and the vertical plate, the sliding sleeve is fixedly connected with two flow rate monitors, and the gear is connected with a cleaning component for cleaning the flow rate monitor, the vertical plate is fixedly connected with a connecting seat, and a retractable No. 1 electric rod is fixedly connected between the electric telescopic plate and the connecting seat;

[0008] The vertical plate is slidably connected to a floating plate, and the floating plate is fixedly connected to a retractable electric positioning rod, and the retractable end of the electric positioning rod can abut against a vertical slide groove on the vertical plate;

[0009] The control system can control the measurement accuracy of the water flow monitoring device by controlling the driving component, the sensing mechanism, the cleaning component and the No. 1 electric rod.

[0010] Further technical solution: the driving assembly includes a motor and a gear transmission pair, the motor is fixedly connected to the end surface of the skateboard, and the gear transmission pair is connected between the output shaft of the motor and the support shaft.

[0011] Further technical solution: the sensing mechanism includes a fixing plate, a guide rod, a stopper and a spring No. 1;

[0012] The end surface of the base is fixedly connected with a fixing plate, the fixing plate is fixedly connected with a guide rod, the guide rod is slidably connected with a stopper, a No. 1 spring is connected between the stopper and the fixing plate, the stopper is hollow inside, and a plurality of through holes are arranged on the side wall of the stopper.

[0013] Further technical solution: the side of the block seat facing away from the fixed seat is an inclined surface, and a plurality of push plates are arranged on the inclined surface of the block seat.

[0014] Further technical solution: The cleaning component includes a rotating shaft and a scraper, both ends of the central axis of the gear are fixedly connected with the rotating shaft, and the rotating shaft is connected with the scraper.

[0015] Further technical solution: The control system comprises:

[0016] A monitoring module, comprising a pressure monitor and a flow rate monitor, wherein the pressure monitor is arranged on the inclined surface of the block seat;

[0017] A storage module, which can obtain and store the pressure value of the pressure monitor and the flow rate values ​​of the two flow rate monitors in the monitoring module, and the storage module calculates the difference between the two flow rate monitors;

[0018] A processing module, which is used to receive the monitoring information in the storage module and form judgment information;

[0019] The control module receives the judgment information from the processing module and controls the driving component, the sensing mechanism, the cleaning component and the No. 1 electric rod.

[0020] Further technical solution: The processing module includes:

[0021] A threshold unit is used to retrieve the pressure value of the pressure monitor at the current moment and the flow rate difference between the two flow rate monitors in the storage module, and compare the two with the preset pressure threshold and the preset flow rate difference threshold respectively, and if at least one of them exceeds the corresponding threshold, a judgment information is formed;

[0022] The analysis unit is used to associate the pressure value of the pressure monitor in the current period of time in the storage module with the flow rate difference between the two flow rate monitors to form a correlation value, and compare the formed correlation value with a preset correlation value threshold. If the correlation value exceeds the correlation value threshold, a judgment information is formed.

[0023] A water flow monitoring method, applied to any of the water flow monitoring devices described above, comprises the following steps:

[0024] S1: Insert the rod into the riverbed so that the fixing seat is fixed to the riverbed; the No. 1 electric rod abuts and fixes the connecting seat and the electric telescopic plate;

[0025] S2: Start the electric telescopic plate to extend and retract, and the electric telescopic plate drives the sliding sleeve to rise and fall synchronously. The flow rate monitor is fixedly connected to the sliding sleeve, so that the flow rate monitor can be moved to any depth of the river channel to measure the water flow rate; the flow rate is measured by two flow rate monitors together. When the flow rate difference between the two flow rate monitors is within the preset flow rate difference threshold, the average value of the flow rate difference of the two flow rate monitors can be taken to calculate the river flow;

[0026] S3: When the velocity difference between the two flow rate monitors exceeds the preset velocity difference threshold, the control system can control the drive assembly to start, the drive assembly drives the base to rotate, and the base drives the two flow rate monitors to rotate synchronously, and the river garbage on the surface of the flow rate monitors is cleaned by the impact force of the water flow; at the same time, the control system controls the electric positioning rod to extend, and the electric positioning rod abuts against the floating plate to fix the floating plate and the vertical plate, and then the No. 1 electric rod is started to extend and retract, and the No. 1 electric rod drives the vertical plate to reciprocate vertically through the connecting seat. At this time, driven by the vertical plate, the gear reciprocates along the electric telescopic plate, and the gear drives the cleaning assembly to further clean the river garbage on the surface of the flow rate monitor;

[0027] S4: When measuring the flow area of ​​a river channel, the water depth can be calculated by measuring the height of the base from the riverbed plus the height of the base from the water surface. The flow area of ​​the river channel can be measured by multiplying the water depth by the width of the river channel. When the pressure value of the sensing mechanism exceeds the preset pressure threshold, the control system controls the extension of the No. 2 electric rod, and the No. 2 electric rod pushes the base to rise through the slide and the support shaft until the pressure value of the pressure monitor returns to the pressure threshold range. Through the control of the No. 2 electric rod, the base is always kept at a fixed height with the riverbed, avoiding the measurement error of the flow area of ​​the river caused by the lifting of the riverbed;

[0028] S5: The water flow rate in the river is obtained by multiplying the flow area of ​​the river by the average flow rate of the two flow rate monitors.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. Start the electric telescopic plate to extend and retract, and the electric telescopic plate drives the sliding sleeve to rise and fall synchronously. The flow rate monitor is fixedly connected to the sliding sleeve, so that the flow rate monitor can be moved to any depth of the river channel to measure the water flow rate;

[0031] 2. The flow velocity is measured by two flow velocity monitors. When the flow velocity difference between the two flow velocity monitors is within the preset flow velocity difference threshold, the average value of the flow velocity difference between the two flow velocity monitors can be taken to calculate the river flow, thereby improving the data accuracy.

[0032] 3. When the velocity difference between the two flow rate monitors exceeds the preset velocity difference threshold, the control system can control the motor to start, the motor drives the support shaft to rotate through the gear transmission pair, the support shaft drives the base to rotate, the base drives the two flow rate monitors and the floating plate to rotate through the electric telescopic plate, and the two flow rate monitors and the river garbage on the surface of the floating plate can be cleaned by water flow, thereby increasing the test accuracy of the water flow monitoring device for water flow;

[0033] 4. When the velocity difference between the two flow rate monitors exceeds the preset velocity difference threshold, the control system controls the electric positioning rod to extend, and the floating plate and the vertical plate are fixed by the electric positioning rod abutting against the floating plate. At this time, the No. 1 electric rod is started to extend and retract, and the No. 1 electric rod drives the vertical plate to move back and forth vertically through the connecting seat. At this time, driven by the vertical plate, the gear reciprocates along the electric telescopic plate, and the gear drives the cleaning component to further clean the river garbage on the surface of the flow rate monitor; at the same time, the vertical plate drives the floating plate to reciprocate vertically, and the river garbage on the floating plate can be cleaned by water flow;

[0034] 5. When the pressure value of the pressure monitor on the block exceeds the preset pressure threshold, the control system controls the extension of the No. 2 electric rod, and the No. 2 electric rod pushes the base to rise through the slide and the support shaft until the pressure value of the pressure monitor returns to the pressure threshold range. Through the control of the No. 2 electric rod, the base always maintains a fixed height with the riverbed, avoiding the measurement error of the flow area of ​​the river caused by the lifting of the riverbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0036] Figure 2 It is a schematic diagram of the connection between the sensing mechanism and the base in the present invention.

[0037] Figure 3 It is a cross-sectional schematic diagram of the base in the present invention.

[0038] Figure 4 It is a schematic diagram of the structure of the driving component in the present invention.

[0039] Figure 5 It is a schematic diagram of the connection between the vertical plate and the floating plate in the present invention.

[0040] Figure 6 It is a schematic diagram of the connection between the vertical plate and the third electric pole in the present invention.

[0041] In the attached drawings: 1. fixed seat; 2. plug-in rod; 3. floating plate; 4. base; 5. driving assembly; 51. motor; 52. gear transmission pair; 6. induction mechanism; 61. fixed plate; 62. guide rod; 63. block seat; 64. spring No. 1; 65. push plate; 7. gear; 8. cleaning assembly; 81. rotating shaft; 82. scraper; 9. electric rod No. 1; 10. slide plate; 11. electric rod No. 2; 12. supporting shaft; 13. vertical plate; 14. sliding sleeve; 15. flow rate monitor; 16. electric telescopic plate; 17. electric positioning rod; 18. block seat; 19. inner cavity. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0044] like Figure 1-Figure 6As shown, a water flow monitoring device and method provided by the present invention comprises a fixing seat 1, a plurality of plug rods 2 are arranged at the bottom of the fixing seat 1, the fixing seat 1 is provided with an inner cavity 19, a slide plate 10 is slidably connected in the inner cavity 19, a second electric rod 11 is fixedly arranged between the slide plate 10 and the inner end surface of the inner cavity 19, the slide plate 10 is rotatably connected with a support shaft 12, a driving assembly 5 for driving the support shaft 12 to rotate is arranged between the support shaft 12 and the slide plate 10, the support shaft 12 is fixedly connected with a base 4, and the base 4 is connected with a sensing mechanism 6 for monitoring the thickness of the soil layer;

[0045] The base 4 is fixedly connected with an electric telescopic plate 16, one end of which is slidably connected with a vertical plate 13, a sliding sleeve 14 is slidably connected between the vertical plate 13 and the electric telescopic plate 16, the sliding sleeve 14 is rotatably connected with a gear 7, the gear 7 is meshed with the meshing teeth on the surface of the electric telescopic plate 16 and the vertical plate 13, the sliding sleeve 14 is fixedly connected with two flow rate monitors 15, and the gear 7 is connected with a cleaning assembly 8 for cleaning the flow rate monitor 15, the vertical plate 13 is fixedly connected with a connecting seat 18, and a retractable No. 1 electric rod 9 is fixedly connected between the electric telescopic plate 16 and the connecting seat 18;

[0046] The vertical plate 13 is slidably connected to the floating plate 3, and the floating plate 3 is fixedly connected to a retractable electric positioning rod 17, and the retractable end of the electric positioning rod 17 can abut against the vertical slide groove on the vertical plate 13;

[0047] The control system can control the measurement accuracy of the water flow monitoring device by controlling the driving component 5, the sensing mechanism 6, the cleaning component 8 and the No. 1 electric rod 9.

[0048] In this embodiment, the insertion rod 2 is inserted into the riverbed, so that the fixing seat 1 is fixed to the riverbed; the No. 1 electric rod 9 abuts and fixes the connecting seat 18 and the electric telescopic plate 16, so that the vertical plate 13 and the telescopic end of the electric telescopic plate 16 are relatively fixed, and under the limit of the gear 7, the sliding sleeve 14 is fixed to the telescopic end of the electric telescopic plate 16;

[0049] The electric telescopic plate 16 is started to extend and retract, and the electric telescopic plate 16 drives the sliding sleeve 14 to rise and fall synchronously. The flow rate monitor 15 is fixedly connected to the sliding sleeve 14, so that the flow rate monitor 15 can be moved to any depth of the river channel to measure the water flow rate;

[0050] The flow velocity is measured by two flow rate monitors 15 together. When the flow velocity difference between the two flow rate monitors 15 is within the preset flow velocity difference threshold, the average value of the flow velocity difference of the two flow rate monitors 15 can be taken to calculate the river flow. When the flow velocity difference between the two flow rate monitors 15 exceeds the preset flow velocity difference threshold, the control system can control the drive component 5 to start, the drive component 5 drives the base 4 to rotate, and the base 4 drives the two flow rate monitors 15 to rotate synchronously, so that the river garbage on the surface of the flow rate monitor 15 is cleaned by the impact force of the water flow, so as to avoid the outer shell of the flow rate monitor 15 being blocked by the river garbage to cause monitoring errors;

[0051] When measuring the flow area of ​​a river channel, the water depth can be calculated by measuring the height of the base 4 from the riverbed plus the height of the base 4 from the water surface (the height of the base 4 from the water surface is equal to the length of the electric telescopic plate 16 after extension minus the length of the electric telescopic plate 16 exposed above the water surface). The water depth multiplied by the width of the river channel (fixed width, which can be a fixed measured value measured manually) can measure the flow area of ​​the river channel;

[0052] However, when the sediment in the river channel accumulates and raises the riverbed, the fixing base 1 is buried by the sediment. At this time, the height of the base 4 from the riverbed changes, which will cause deviations in the calculation of the flow area of ​​the river channel.

[0053] When the sediment in the river channel is accumulated and the riverbed is raised, the contact force of the sediment on the sensing mechanism 6 increases. At this time, the control system controls the No. 2 electric rod 11 to extend, and the No. 2 electric rod 11 pushes the base 4 to rise through the slide 10 and the support shaft 12 until the pressure value of the sensing mechanism 6 is restored to the pressure threshold range. Through the control of the No. 2 electric rod 11, the base 4 always maintains a fixed height with the riverbed, avoiding the measurement error of the flow area of ​​the river caused by the riverbed rising;

[0054] When the electric positioning rod 17 is not in contact with the floating plate 3, the floating plate 3 can freely rise and fall along the vertical plate 13 with the buoyancy of the water surface. The floating plate 3 floats on the water surface to prevent the fixing seat 1 from being washed away by the water flow and sinking to the bottom of the water, so that the water flow monitoring device can be found;

[0055] When the flow rate difference between the two flow rate monitors 15 exceeds the preset flow rate difference threshold, the control system controls the electric positioning rod 17 to extend, and the electric positioning rod 17 abuts against the floating plate 3 to fix the floating plate 3 and the vertical plate 13. At this time, the No. 1 electric rod 9 is started to extend and retract, and the No. 1 electric rod 9 drives the vertical plate 13 to reciprocate vertically through the connecting seat 18. At this time, driven by the vertical plate 13, the gear 7 reciprocates along the electric telescopic plate 16, and the gear 7 drives the cleaning component 8 to further clean the river garbage on the surface of the flow rate monitor 15; at the same time, the vertical plate 13 drives the floating plate 3 to reciprocate vertically, and the river garbage on the floating plate 3 can be cleaned by water flow;

[0056] The water flow rate of the river channel is obtained by multiplying the flow area of ​​the river channel by the average flow rate of the two flow rate monitors 15.

[0057] like Figure 4 As shown, a water flow monitoring device provided by the present invention is provided, wherein the driving assembly 5 includes a motor 51 and a gear transmission pair 52 , wherein the motor 51 is fixedly connected to the end surface of the skateboard 10 , and the gear transmission pair 52 is connected between the output shaft of the motor 51 and the support shaft 12 .

[0058] In this embodiment, the motor 51 is started, and the motor 51 drives the support shaft 12 to rotate through the gear transmission pair 52, and the support shaft 12 drives the base 4 to rotate. The base 4 drives the two flow rate monitors 15 and the floating plate 3 to rotate through the electric telescopic plate 16. The river garbage on the surface of the two flow rate monitors 15 and the floating plate 3 can be cleaned by water flow, thereby increasing the test accuracy of this water flow monitoring device for water flow.

[0059] like Figure 2 As shown, a water flow monitoring device provided by the present invention is provided, wherein the sensing mechanism 6 comprises a fixing plate 61, a guide rod 62, a stopper 63 and a spring 64;

[0060] The end surface of the base 4 is fixedly connected with a fixing plate 61, the fixing plate 61 is fixedly connected with a guide rod 62, the guide rod 62 is slidably connected with a stopper 63, a No. 1 spring 64 is connected between the stopper 63 and the fixing plate 61, the stopper 63 is hollow inside, and a plurality of through holes are provided on the side wall of the stopper 63.

[0061] In this embodiment, the blocking seat 63 is arranged on the back water surface of the fixed seat 1 to prevent the impact of water flow from affecting the measurement result of the blocking seat 63; when the riverbed is silted, the blocking seat 63 moves up along the guide rod 62 under the push of the silt, and the No. 1 spring 64 is forced to contract. When the pressure of the No. 1 spring 64 reaches the preset pressure threshold, the No. 2 electric rod 11 is extended, and the base 4 is driven to rise through the No. 2 electric rod 11 until the pressure of the No. 1 spring 64 returns to within the preset pressure threshold, thereby ensuring that the base 4 can be raised as the riverbed rises, thereby improving the accuracy of water depth measurement.

[0062] like Figure 2 As shown in FIG. 1 , a water flow monitoring device provided by the present invention is provided. The side of the blocking seat 63 facing away from the fixing seat 1 is an inclined surface, and a plurality of push plates 65 are arranged on the inclined surface of the blocking seat 63 .

[0063] In this embodiment, since the blocking seat 63 is on the back side of the fixed seat 1, there is a certain height difference in the accumulation height of the silt around the fixed seat 1 due to the obstruction of the fixed seat 1. At this time, when the support shaft 12 drives the base 4 to rotate, the base 4 can drive the blocking seat 63 to rotate through the fixed plate 61, and the blocking seat 63 levels the silt around the fixed seat 1 through the push plate 65, thereby improving the monitoring accuracy of the riverbed height by the blocking seat 63.

[0064] like Figure 6 As shown, a water flow monitoring device provided by the present invention is provided. The cleaning component 8 includes a rotating shaft 81 and a scraper 82 . Both ends of the central axis of the gear 7 are fixedly connected with the rotating shaft 81 , and the rotating shaft 81 is connected with the scraper 82 .

[0065] In this embodiment, when the No. 1 electric rod 9 drives the vertical plate 13 to rise and fall vertically, the gear 7 rotates back and forth along the electric telescopic plate 16 driven by the vertical plate 13, and the gear 7 drives the rotating shaft 81 to rotate, and the rotating shaft 81 drives the scraper 82 to further clean the algae on the surface of the flow rate monitor 15.

[0066] The present invention provides a water flow monitoring device, wherein the control system comprises:

[0067] A monitoring module, which includes a pressure monitor and a flow rate monitor 15, wherein the pressure monitor is arranged on the inclined surface of the stopper 63;

[0068] A storage module, which can obtain and store the pressure value of the pressure monitor and the flow rate values ​​of the two flow rate monitors 15 in the monitoring module, and the storage module calculates the difference between the two flow rate monitors 15;

[0069] A processing module, which is used to receive the monitoring information in the storage module and form judgment information;

[0070] The control module receives the judgment information in the processing module and controls the driving component 5, the sensing mechanism 6, the cleaning component 8 and the No. 1 electric rod 9.

[0071] The present invention provides a water flow monitoring device, wherein the processing module comprises:

[0072] A threshold unit is used to retrieve the pressure value of the pressure monitor at the current moment and the flow rate difference between the two flow rate monitors 15 in the storage module, and compare the two with the preset pressure threshold and the preset flow rate difference threshold respectively. If at least one of them exceeds the corresponding threshold, a judgment information is formed;

[0073] The analysis unit is used to associate the pressure value of the pressure monitor in the current period of time in the storage module and the flow rate difference between the two flow rate monitors 15 to form a correlation value, and compare the formed correlation value with a preset correlation value threshold. If the correlation value exceeds the correlation value threshold, a judgment information is formed.

[0074] The specific processing method of the analysis unit is:

[0075] S1. In the data set of the storage module, obtain the pressure value information at multiple time points within a period of time, recorded as F1, F2, ..., F i ; and the velocity difference information between the two 15 at multiple time points within a period of time, recorded as V1, V2, ..., V i , where i represents the number of time points at which the value is recorded;

[0076] S2. Based on the pressure value information within the current period of time and the flow rate difference information within the current period of time, the correlation value between the two is calculated as follows:

[0077]

[0078] Where N is the total number of projects, F i is the pressure value information at the current moment, V i is the velocity difference information at the current moment;

[0079] W(T, R) is the correlation value between the pressure value and the flow rate difference within the current period of time;

[0080] S3, comparing the obtained correlation value with a preset correlation value threshold, and if the correlation value is greater than the preset threshold, forming judgment information;

[0081] S4. Transmit the above-formed judgment information to the control module for related module control.

[0082] Working principle:

[0083] Insert the plug rod 2 into the riverbed, so that the fixing seat 1 is fixed to the riverbed; the No. 1 electric rod 9 abuts and fixes the connecting seat 18 and the electric telescopic plate 16, so that the vertical plate 13 and the telescopic end of the electric telescopic plate 16 are relatively fixed, and under the limit of the gear 7, the sliding sleeve 14 is fixed to the telescopic end of the electric telescopic plate 16;

[0084] The electric telescopic plate 16 is started to extend and retract, and the electric telescopic plate 16 drives the sliding sleeve 14 to rise and fall synchronously. The flow rate monitor 15 is fixedly connected to the sliding sleeve 14, so that the flow rate monitor 15 can be moved to any depth of the river channel to measure the water flow rate;

[0085] The flow velocity is measured by two flow velocity monitors 15 together. When the flow velocity difference between the two flow velocity monitors 15 is within the preset flow velocity difference threshold, the average value of the flow velocity difference between the two flow velocity monitors 15 can be taken to calculate the river flow, thereby improving data accuracy.

[0086] When the flow rate difference between the two flow rate monitors 15 exceeds the preset flow rate difference threshold, the control system can control the motor 51 to start, the motor 51 drives the support shaft 12 to rotate through the gear transmission pair 52, the support shaft 12 drives the base 4 to rotate, and the base 4 drives the two flow rate monitors 15 and the floating plate 3 to rotate through the electric telescopic plate 16, and the river garbage on the surface of the two flow rate monitors 15 and the floating plate 3 can be cleaned by water flow, thereby increasing the test accuracy of the water flow monitoring device for water flow;

[0087] At the same time, the control system controls the electric positioning rod 17 to extend, and the floating plate 3 and the vertical plate 13 are fixed by the electric positioning rod 17 abutting against the floating plate 3. At this time, the No. 1 electric rod 9 is started to extend and retract, and the No. 1 electric rod 9 drives the vertical plate 13 to reciprocate vertically through the connecting seat 18. At this time, driven by the vertical plate 13, the gear 7 reciprocates along the electric telescopic plate 16, and the gear 7 drives the cleaning component 8 to further clean the river garbage on the surface of the flow rate monitor 15; at the same time, the vertical plate 13 drives the floating plate 3 to reciprocate vertically, and the river garbage on the floating plate 3 can be cleaned by water flow;

[0088] When the pressure value of the pressure monitor on the stopper 63 exceeds the preset pressure threshold, the control system controls the No. 2 electric rod 11 to extend, and the No. 2 electric rod 11 pushes the base 4 to rise through the slide 10 and the support shaft 12 until the pressure value of the pressure monitor returns to the pressure threshold range. Through the control of the No. 2 electric rod 11, the base 4 always maintains a fixed height with the riverbed, avoiding the measurement error of the flow area of ​​the river caused by the lifting of the riverbed;

[0089] A plurality of push plates 65 are arranged on the inclined surface of the stopper 63. When the support shaft 12 drives the base 4 to rotate, the base 4 can drive the stopper 63 to rotate through the fixing plate 61. The stopper 63 flattens the mud and sand around the fixing base 1 through the push plates 65, thereby improving the monitoring accuracy of the riverbed height by the stopper 63.

[0090] The water flow rate of the river channel is obtained by multiplying the flow area of ​​the river channel by the average flow rate of the two flow rate monitors 15.

[0091] When the correlation value between the pressure value of the pressure monitor and the flow rate difference between the two flow rate monitors 15 exceeds the preset threshold, the control module simultaneously controls the drive component 5, the sensing mechanism 6, the cleaning component 8, the No. 1 electric rod 9 and the electric positioning rod 17 to start until the correlation value is within the correlation value threshold.

[0092] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0093] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A water flow monitoring device, comprising a fixing seat (1), wherein a plurality of plug rods (2) are arranged at the bottom of the fixing seat (1), characterized in that: The fixed seat (1) is provided with an inner cavity (19), a slide plate (10) is slidably connected in the inner cavity (19), a second electric rod (11) is fixedly arranged between the slide plate (10) and the inner end surface of the inner cavity (19), the slide plate (10) is rotatably connected to a support shaft (12), a driving assembly (5) for driving the support shaft (12) to rotate is arranged between the support shaft (12) and the slide plate (10), the support shaft (12) is fixedly connected to a base (4), and the base (4) is connected to a sensing mechanism (6) for monitoring the thickness of a soil layer; The base (4) is fixedly connected to an electric telescopic plate (16), one end of the electric telescopic plate (16) is slidably connected to a vertical plate (13), a sliding sleeve (14) is slidably connected between the vertical plate (13) and the electric telescopic plate (16), the sliding sleeve (14) is rotatably connected to a gear (7), the gear (7) is meshed with meshing teeth on the surface of the electric telescopic plate (16) and the vertical plate (13), the sliding sleeve (14) is fixedly connected to two flow rate monitors (15), and the gear (7) is connected to a cleaning assembly (8) for cleaning the flow rate monitors (15), the vertical plate (13) is fixedly connected to a connecting seat (18), and a retractable No. 1 electric rod (9) is fixedly connected between the electric telescopic plate (16) and the connecting seat (18); The vertical plate (13) is slidably connected to a floating plate (3), and the floating plate (3) is fixedly connected to a telescopic electric positioning rod (17), and the telescopic end of the electric positioning rod (17) can abut against a vertical sliding groove on the vertical plate (13); The control system can control the measurement accuracy of the water flow monitoring device by controlling the driving component (5), the sensing mechanism (6), the cleaning component (8) and the No. 1 electric rod (9).

2. The water flow monitoring device according to claim 1, characterized in that: The driving assembly (5) comprises a motor (51) and a gear transmission pair (52); the motor (51) is fixedly connected to the end surface of the slide plate (10), and the gear transmission pair (52) is connected between the output shaft of the motor (51) and the support shaft (12).

3. The water flow monitoring device according to claim 1, characterized in that: The sensing mechanism (6) comprises a fixing plate (61), a guide rod (62), a stopper (63) and a first spring (64); The end surface of the base (4) is fixedly connected to a fixing plate (61), the fixing plate (61) is fixedly connected to a guide rod (62), the guide rod (62) is slidably connected to a stopper (63), a first spring (64) is connected between the stopper (63) and the fixing plate (61), the stopper (63) is hollow inside, and a side wall of the stopper (63) is provided with a plurality of through holes.

4. The water flow monitoring device according to claim 3, characterized in that: The side of the blocking seat (63) facing away from the fixing seat (1) is an inclined surface, and a plurality of push plates (65) are arranged on the inclined surface of the blocking seat (63).

5. The water flow monitoring device according to claim 1, characterized in that: The cleaning assembly (8) comprises a rotating shaft (81) and a scraper (82); both ends of the central axis of the gear (7) are fixedly connected to the rotating shaft (81); and the rotating shaft (81) is connected to the scraper (82).

6. The water flow monitoring device according to claim 3, characterized in that: The control system comprises: A monitoring module, comprising a pressure monitor and a flow rate monitor (15), wherein the pressure monitor is arranged on the inclined surface of the stopper (63); A storage module, which is capable of acquiring and storing the pressure value of the pressure monitor and the flow rate values ​​of the two flow rate monitors (15) in the monitoring module, and the storage module calculates the difference between the two flow rate monitors (15); A processing module, which is used to receive the monitoring information in the storage module and form judgment information; The control module receives the judgment information in the processing module and controls the driving component (5), the sensing mechanism (6), the cleaning component (8) and the first electric rod (9).

7. The water flow monitoring device according to claim 6, characterized in that: The processing module comprises: A threshold unit is used to retrieve the pressure value of the pressure monitor at the current moment and the flow rate difference between the two flow rate monitors (15) in the storage module, and compare the two with a preset pressure threshold and a preset flow rate difference threshold respectively, and if at least one of them exceeds the corresponding threshold, a judgment information is formed; The analysis unit is used to associate the pressure value of the pressure monitor within a current period of time in the storage module and the flow rate difference between the two flow rate monitors (15) to form a correlation value, and compare the formed correlation value with a preset correlation value threshold value. If the correlation value exceeds the correlation value threshold value, judgment information is formed.

8. A water flow monitoring method, applied to the water flow monitoring device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: inserting the insertion rod (2) into the riverbed so that the fixing seat (1) is fixed to the riverbed; the No. 1 electric rod (9) abuts and fixes the connecting seat (18) and the electric telescopic plate (16); S2: The electric telescopic plate (16) is started to extend and retract, and the electric telescopic plate (16) drives the sliding sleeve (14) to rise and fall synchronously. The flow rate monitor (15) is fixedly connected to the sliding sleeve (14), so that the flow rate monitor (15) can be moved to any depth of the river channel to measure the water flow rate; the flow rate is measured by the two flow rate monitors (15) together. When the flow rate difference between the two flow rate monitors (15) is within a preset flow rate difference threshold, the average value of the flow rate difference of the two flow rate monitors (15) can be taken to calculate the river flow; S3: When the flow rate difference between the two flow rate monitors (15) exceeds a preset flow rate difference threshold, the control system can control the drive assembly (5) to start, the drive assembly (5) drives the base (4) to rotate, the base (4) drives the two flow rate monitors (15) to rotate synchronously, and the river garbage on the surface of the flow rate monitor (15) is cleaned by the impact force of the water flow; at the same time, the control system controls the electric positioning rod (17) to extend, and the electric positioning rod (17) abuts against the floating plate (3) to fix the floating plate (3) and the vertical plate (13), and at this time, the first electric rod (9) is started to extend and retract, and the first electric rod (9) drives the vertical plate (13) to reciprocate vertically through the connecting seat (18), and at this time, driven by the vertical plate (13), the gear (7) reciprocates along the electric telescopic plate (16), and the gear (7) drives the cleaning assembly (8) to further clean the river garbage on the surface of the flow rate monitor (15); S4: When measuring the flow area of ​​a river channel, the water depth can be calculated by measuring the height of the base (4) from the riverbed plus the height of the base (4) from the water surface. The flow area of ​​the river channel can be measured by multiplying the water depth by the width of the river channel. When the pressure value of the sensing mechanism (6) exceeds the preset pressure threshold, the control system controls the second electric rod (11) to extend. The second electric rod (11) pushes the base (4) to rise through the slide plate (10) and the support shaft (12) until the pressure value of the pressure monitor returns to within the pressure threshold range. Through the control of the second electric rod (11), the base (4) always maintains a fixed height with the riverbed, thereby avoiding the measurement error of the flow area of ​​the river caused by the lifting of the riverbed; S5: The water flow rate of the river is obtained by multiplying the flow area of ​​the river by the average flow rate of the two flow rate monitors (15).

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