Portable river water regime monitoring device
By designing a bracket for the portable river hydrological monitoring device and integrating multiple functions, the problems of inconvenient deployment and limited functionality of traditional devices have been solved, enabling convenient and multifunctional river hydrological monitoring and improving monitoring efficiency and equipment utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING WATER CONSERVANCY AUTOMATION INST
- Filing Date
- 2025-11-07
- Publication Date
- 2026-07-24
AI Technical Summary
Existing river water level monitoring devices are bulky and heavy, making them difficult to deploy conveniently. They also have limited functionality and cannot achieve the integration and synergy of multiple monitoring functions.
A portable river water level monitoring device was designed, which adopts a retractable support structure and integrates video acquisition, flow velocity measurement and positioning units. It connects to the back-end server and mobile terminal through wireless communication to realize multi-functional monitoring, and uses the Doppler effect and YOLOv5 target detection algorithm to measure water level and flow velocity.
It enables convenient deployment and multi-functional monitoring, improves the efficiency of data collection and management, adapts to various monitoring needs, and reduces equipment purchase and transportation costs.
Smart Images
Figure CN224552393U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of monitoring device technology, specifically to a portable river water level monitoring device. Background Technology
[0002] In the fields of water conservancy projects and water resources management, river hydrological monitoring is crucial for flood control, water resource allocation, and other tasks. However, existing river hydrological monitoring devices have many shortcomings and are insufficient to meet the needs of practical applications.
[0003] Traditional river hydrological monitoring devices are mostly fixed installations, large in size and heavy in weight, making transportation and installation inconvenient, especially in the event of sudden floods during the flood season, where rapid deployment is not possible. Moreover, once the installation location is determined, these fixed devices are difficult to move and adjust flexibly according to actual monitoring needs, lacking portability and flexibility.
[0004] Meanwhile, existing monitoring devices often have limited functionality, typically monitoring only a few parameters such as water level or flow velocity. If multi-dimensional hydrological data, such as watershed images and three-dimensional coordinates of measurement points, are required, multiple different devices need to be installed. This not only increases equipment purchase costs but also complicates data acquisition and management, hindering the integration and coordination of various monitoring functions. Utility Model Content
[0005] To overcome the above-mentioned shortcomings in the prior art, this utility model provides a portable river water condition monitoring device that is easy to deploy and has multiple monitoring functions.
[0006] The technical solution of this utility model is as follows:
[0007] A portable river hydrological monitoring device includes a support frame, on which a video acquisition unit, a flow velocity measurement unit, a positioning unit, a wireless communication unit, and a control unit are installed;
[0008] The bracket includes at least three legs and a mounting base, wherein each leg and the mounting base are hinged together, so that each leg can be extended or retracted;
[0009] The video acquisition unit is suspended at the mounting base via the first arm and is used to acquire images of the watershed.
[0010] The flow velocity measurement unit is suspended at the mounting base via the second arm and is used to collect the flow velocity of the watershed.
[0011] The positioning unit is disposed at the mounting base and is used to acquire the three-dimensional coordinates of the measurement point;
[0012] The video acquisition unit, flow rate measurement unit, positioning unit, and wireless communication unit are electrically connected to the control unit, and the wireless communication unit is connected to the backend server and / or mobile terminal.
[0013] Preferably, the system further includes a connecting plate and several connecting rods, wherein the connecting plate is disposed on the inner side of each of the legs, and both ends of each of the connecting rods are respectively hinged to the connecting plate and each of the legs.
[0014] In any of the above embodiments, it is preferred that the connecting plate is provided with a sliding groove, and the lower part of the connecting plate is provided with a downwardly extending guide rod, the guide rod and the sliding groove being slidably connected.
[0015] In any of the above embodiments, it is preferred that a counterweight bag is provided at the lower part of the connecting plate, and a counterweight is movably disposed at the counterweight bag.
[0016] In any of the above embodiments, it is preferred that each of the legs has a movable grounding connector at its end away from the mounting base.
[0017] In any of the above embodiments, it is preferred that each of the ground plugs is hollow, with a push rod inserted into the hollow part, and a notch is provided on the side of each of the ground plugs, with a baffle plate provided at the notch. When the push rod moves down, it presses the baffle plate so that the baffle plate is exposed at the notch.
[0018] In any of the above embodiments, it is preferred to further include a connecting seat, one end of which is hinged to the end of the first arm near the flow velocity measuring unit, and the other end of which is hinged to the flow velocity measuring unit.
[0019] In any of the above solutions, it is preferred that the flow velocity measuring unit is an electromagnetic flow meter.
[0020] In any of the above schemes, it is preferred that the positioning unit is a GNSS or a total station.
[0021] In any of the above solutions, it is preferred that the communication method of the wireless communication unit is any one of 4G, 5G, ZigBee, LoRa, NB-IoT, and satellite communication.
[0022] The various functional units of the water situation monitoring of this utility model are set at the bracket. The bracket adopts a hinged design with at least three retractable legs and mounting bases. The legs can be unfolded or retracted without tools, and the volume is greatly reduced after being stored, which is convenient for single-person handling and vehicle transportation, thus making deployment convenient.
[0023] It integrates three core monitoring functions: video acquisition, flow rate measurement, and positioning, breaking through the limitations of traditional single-function monitoring equipment, thus providing diverse monitoring capabilities. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of one embodiment of the portable river water level monitoring device of this utility model.
[0025] Figure 2 This is a schematic diagram of an embodiment of the portable river water level monitoring device of this utility model, showing the connection between one leg and the ground connector.
[0026] Figure 3 For this Figure 2 A schematic diagram of the AA cross-section of the ground plug connector in the embodiment shown.
[0027] Figure 4 This is a circuit connection diagram of the portable river water level monitoring device of this utility model.
[0028] Explanation of the labels in the diagram:
[0029] 101-Second support arm; 102-First support arm; 103-Positioning unit; 104-Housing; 105-Mounting base; 106-Support leg; 107-Guide rod; 108-Connecting plate; 109-Counterweight bag; 110-Connecting rod; 111-Video acquisition unit; 112-Flow velocity measurement unit; 113-Connecting block; 114-Push rod; 115-Ground plug connector; 116-Baffle plate. Detailed Implementation
[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0031] In the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0032] Example 1:
[0033] like Figure 1As shown, the bracket provides basic support for the various functional components of the portable river water level monitoring device. Specifically, to ensure the stability of the bracket, the bracket includes at least three legs 106. The upper end of each leg 106 is hinged to the mounting base 105. Each leg 106 is connected to the mounting base 105 by hinges. Therefore, the legs 106 can be quickly folded up for storage and deployed for deployment. When the legs 106 are folded up for storage, the device occupies a small volume, making it easy to carry.
[0034] A housing 104 is provided on the upper part of the mounting base 105. A wireless communication unit and a control unit are housed within the housing 104. A positioning unit 103, used to determine the three-dimensional coordinates of the measurement point, is positioned above the housing 104 to receive external signals. A video acquisition unit 111 is suspended on the side of the housing 104 via a first support arm 102 to acquire video of the measurement area. A flow velocity measurement unit 112 is suspended on the side of the housing 104 via a second support arm 101 to acquire water flow data of the measurement area. The wireless communication unit transmits the data acquired by the video acquisition unit 111 and the flow velocity measurement unit 112 to a mobile terminal or a backend server. The entire device can be powered by a solar panel or a rechargeable lithium battery. The housing 104 has a dustproof rating of 6 and a waterproof rating of 6, preventing dust ingress and water ingress during heavy rainfall, thus adapting to harsh operating environments.
[0035] like Figure 4 As shown, the control unit is provided with several I / O interfaces. The video acquisition unit 111, the flow rate measurement unit 112, the positioning unit 103, and the wireless communication unit are electrically connected to the corresponding I / O interfaces of the control unit.
[0036] The portable river hydrological monitoring device measures water levels by employing the following principle: With a water gauge present on the bank, a water gauge recognition model is constructed based on the YOLOv5 target detection algorithm, simultaneously detecting the water gauge markings (E-marks) and the portion of the water gauge protruding above the water surface. A feature extraction network identifies the structural features of the water gauge, and non-maximum suppression (NMS) optimizes the detection results. By fitting the pixel height of each E-mark to the actual height, the height of the water gauge protruding above the water surface is calculated, achieving high-precision water level measurement based on the water gauge elevation. This method only requires configuring the water gauge height and the actual height represented by the E-mark (typically 5 cm), eliminating the need for pre-calibration, adapting to various types of water gauges, and exhibiting good robustness in complex environments.
[0037] By using the convolutional neural network deeplabv3+ to perform pixel-level semantic segmentation of water bodies in video images, the water surface boundary line can be obtained. Then, based on the mapping function between manually calibrated image pixels and actual height, the monitored water level can be calculated.
[0038] The portable river hydrological monitoring device measures flow velocity based on the Doppler effect. It transmits high-frequency electromagnetic waves into the water and receives the echoes reflected by moving particles (such as sediment and foam). The flow velocity is calculated using the difference between the echo frequency and the transmitted frequency (Doppler shift). In practical applications, the detection area of consecutive frame particle images is gridded into uniform rectangular reading windows. A reading window at a specific location is selected, and cross-correlation is performed with the corresponding reading windows in the next frame. The distance and direction of the location with the maximum correlation coefficient relative to the center point of the window represent the magnitude and direction of the displacement of fluid particles within that reading window, thus obtaining the gridded water surface velocity vector.
[0039] When positioning unit 103 locates the measurement point, its chip can be a GNSS module or a total station.
[0040] The backend server and / or mobile terminal acquire data from the video acquisition unit 111, the flow velocity measurement unit 112, and the positioning unit 103 via the wireless communication unit.
[0041] The wireless communication unit can use any one of 4G, 5G, ZigBee, LoRa, NB-IoT, or satellite communication. The specific choice of the above communication method can be made according to the communication distance requirements.
[0042] The equipment's required programs (water level measurement unit and flow velocity measurement unit 112) can be deployed in two ways: if the control unit has sufficient computing power, the programs can run centrally at the control unit. If computing power needs to be distributed, the control unit can transmit the data from the video acquisition unit 111 and the flow velocity measurement unit 112 to the backend server or mobile terminal, and then load the processing program into the backend server and / or mobile terminal for execution.
[0043] It is understood that the functions of the control unit rely on its hardware and built-in program for implementation. It should be noted that the program is written based on the working principle of the aforementioned portable river hydrological monitoring device. The specific assembly language, model algorithms, function calls, and data debugging methods used in the program development are all existing technologies and are not protected by this solution.
[0044] Example 2:
[0045] Based on Example 1, such as Figure 1As shown, when the support leg 106 is long, to ensure its strength and prevent bending during use, this embodiment adds a connecting plate 108 and several connecting rods 110. The connecting plate 108 is located on the inner side of each support leg 106, and the two ends of each connecting rod 110 are hinged to the connecting plate 108 and each support leg 106, respectively. When the support leg 106 is extended, the connecting plate 108 is connected to the support leg 106 via the connecting rods 110, and the connecting plate 108 and the connecting rods 110 fix each support leg 106. When the support leg 106 is retracted, the connecting plate 108 moves upward so that the connecting plate 108 is clamped between the retracted support legs 106.
[0046] Example 3:
[0047] Based on Example 2, such as Figure 1 As shown, to ensure that the connecting plate 108 moves upward along a preset trajectory when the outrigger 106 is retracted, i.e., the connecting plate 108 will not flip over during the retraction of the outrigger 106, a sliding groove is provided at the connecting plate 108, and a guide rod 107 extending downward is provided at the lower part of the mounting base 105. The guide rod 107 and the sliding groove are slidably connected. The sliding groove and the guide rod 107 cooperate to allow the connecting plate 108 to move upward along the guide rod 107 when the outrigger 106 is retracted.
[0048] Example 4:
[0049] Based on Example 2 or 3, such as Figure 1 As shown, to prevent the device from being blown over by strong winds, when the device is placed on the rocky riverbank, where the geological layer is hard and the legs 106 are difficult to insert into, a counterweight bag 109 is provided at the lower part of the connecting plate 108. The counterweight bag 109 is hung at the bottom of the connecting plate 108 via a connecting rope, and a counterweight can be movably installed at the counterweight bag 109. The counterweight can be selected from rocks near the measuring point.
[0050] Example 5:
[0051] Based on any of the embodiments in Examples 1-3, such as Figure 2 , 3 As shown, to prevent the device from being blown over by strong winds, ground connectors 115 are provided at the ends of each support leg 106 that are movably away from the mounting base 105. This design is suitable for scenarios where the device is placed on muddy ground. The ground connectors 115 are inserted into the soil to fix the bottom of each support leg 106 to the ground. Each support leg 106 has a hole at its bottom. Once the placement position of each support leg 106 is determined, the ground connector 115 is inserted into the soil through the hole at the bottom of the support leg 106.
[0052] In this embodiment, to further prevent the ground connector 115 from being pulled out of the ground during use, the ground connector 115 is hollow, with a push rod 114 movably inserted into the hollow part. A notch is provided on the side of the ground connector 115, and a baffle 116 is provided at the notch. The baffle 116 is made of bendable metal, and its lower part is welded to the inner wall of the ground connector 115. When the ground connector 115 is inserted into the ground, the push rod 114 moves downward, and its lower tip contacts the baffle 116. As the push rod 114 continues to move downward, it compresses the baffle 116, causing it to protrude from the notch and lock into place with the ground, thus further preventing the ground connector 115 from being pulled out of the soil. When the push rod 114 is pulled out, the baffle 116 springs back.
[0053] Example 6:
[0054] Based on any of the embodiments in Examples 1-5, such as Figure 1 As shown, to facilitate leveling of the flow velocity measuring unit 112, a connecting block 113 is added in this embodiment. One end of the connecting block 113 is hinged to the end of the first support arm 102 near the flow velocity measuring unit 112, and the other end is hinged to the flow velocity measuring unit 112. In use, after the flow velocity measuring unit 112 is leveled, its level can be maintained by locking the hinge point between the connecting block 113 and the first support arm 102 and the flow velocity measuring unit 112.
[0055] The above-described embodiments are merely preferred embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be covered within the protection scope of this utility model.
Claims
1. A portable river hydrological monitoring device, comprising a support frame, characterized in that, The bracket is equipped with a video acquisition unit (111), a flow velocity measurement unit (112), a positioning unit (103), a wireless communication unit, and a control unit; The bracket includes at least three legs (106) and a mounting base (105), and each leg (106) and the mounting base (105) are hinged so that each leg (106) can be extended or retracted; The video acquisition unit (111) is suspended at the mounting base (105) via the first arm (102) and is used to acquire watershed images; The flow velocity measurement unit (112) is suspended at the mounting base (105) via the second arm (101) and is used to collect the flow velocity of the watershed; The positioning unit (103) is located at the mounting base (105) and is used to obtain the three-dimensional coordinates of the measurement point; The video acquisition unit (111), the flow velocity measurement unit (112), the positioning unit (103), and the wireless communication unit are electrically connected to the control unit, and the wireless communication unit is connected to the back-end server and / or mobile terminal.
2. The portable river hydrological monitoring device as described in claim 1, characterized in that, It also includes a connecting plate (108) and several connecting rods (110). The connecting plate (108) is located on the inner side of each leg (106), and the two ends of each connecting rod (110) are respectively hinged to the connecting plate (108) and each leg (106).
3. The portable river hydrological monitoring device as described in claim 2, characterized in that, A groove is provided at the connecting plate (108), and a guide rod (107) extending downward is provided at the lower part of the connecting plate (108). The guide rod (107) and the groove are slidably connected.
4. The portable river hydrological monitoring device as described in claim 2, characterized in that, A counterweight bag (109) is provided at the lower part of the connecting plate (108), and a counterweight can be movably installed at the counterweight bag (109).
5. The portable river hydrological monitoring device as described in claim 1, characterized in that, Each leg (106) has a movable ground connector (115) at the end away from the mounting base (105).
6. The portable river hydrological monitoring device as described in claim 5, characterized in that, The connector (115) is hollow, and a push rod (114) is inserted into the hollow part. The side of the connector (115) has a notch, and a baffle (116) is provided at the notch. When the push rod (114) moves down and squeezes the baffle (116), the baffle (116) is exposed at the notch.
7. The portable river hydrological monitoring device as described in claim 1, characterized in that, It also includes a connecting seat, one end of which is hinged to the end of the first arm (102) near the flow velocity measuring unit (112), and the other end is hinged to the flow velocity measuring unit (112).
8. The portable river hydrological monitoring device as described in claim 1, characterized in that, The flow velocity measurement unit (112) is an electromagnetic flow meter.
9. The portable river hydrological monitoring device as described in claim 1, characterized in that, The positioning unit (103) is a GNSS or a total station.
10. The portable river hydrological monitoring device as described in claim 1, characterized in that, The wireless communication unit can communicate using any one of the following methods: 4G, 5G, ZigBee, LoRa, NB-IoT, or satellite communication.