River water level monitoring and early warning device

Abstract

The utility model discloses a riverway water level monitoring and early warning device, which belongs to the field of riverway safety and comprises an inverted L-shaped bracket fixedly connected with an instrument, a solar power supply panel positioned above a vertical rod of the inverted L-shaped bracket and a distance measuring camera positioned at the transverse surface end of the inverted L-shaped bracket. Compared with the prior art, the device has the advantages that the mode that the distance measuring camera monitors the water surface to determine the water level is changed into the mode that the distance measuring camera monitors the scales of the rectangular buoyancy rod, the floating ball on the bottom face of the rectangular buoyancy rod is located in the river water, and the rectangular buoyancy rod is jacked up through the buoyancy of the river water; the scale of the rectangular buoyancy rod is detected through the distance measuring camera, and the water level of the riverway is monitored by reading the scale.

Description

Technical Field

[0001] This utility model relates to the field of river safety, specifically to a river water level monitoring and early warning device. Background Technology

[0002] In order to respond promptly to droughts and floods on both sides of the river, corresponding river water level monitoring and early warning devices are usually installed at fixed intervals along the riverbanks. These devices monitor changes in the river water level in real time and control the opening and closing of nearby sluice gates based on these changes.

[0003] Existing river water level monitoring and early warning devices typically use dedicated rangefinder cameras or ultrasonic sensors for monitoring. While ultrasonic sensors can achieve non-contact monitoring, they are easily affected by external electromagnetic waves. Therefore, in environments with transformers or other sources of electromagnetic interference, ultrasonic water level monitoring devices cannot be used, and only rangefinder camera-type water level monitoring devices can be used. Existing rangefinder camera water level monitors mainly consist of a frame support, a solar power panel located above the vertical rod of the frame support, and a rangefinder camera located at the horizontal end of the frame support. To reduce weight, the frame support is often a hollow structure.

[0004] Rangefinder cameras can monitor water levels in real time under normal circumstances, but in extreme rainy weather, the lens may be blocked by rainwater, which will affect the accuracy of water level monitoring. Once the water level cannot be monitored normally, it is very likely that the headquarters control system will not open the gate in time, resulting in the water level overflowing the river. Utility Model Content

[0005] The technical problem this invention aims to solve is that the ranging camera in existing river water level monitoring and early warning devices is prone to inaccurate water level monitoring during heavy rain.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a river water level monitoring and early warning device, comprising a bracket for fixing and connecting instruments, a solar power supply panel located above the vertical rod of the bracket, and a ranging camera located at the horizontal end of the bracket. A signal converter for receiving and forwarding signals from the ranging camera is provided on the vertical surface of the bracket. The bracket has a hollow structure.

[0007] The ranging camera is located inside the top end of the horizontal column of the inverted U-shaped bracket, and a water level baffle groove inserted into the river water is provided at the top end of the horizontal column of the inverted U-shaped bracket. A rectangular buoyancy rod with scales is provided inside the water level baffle groove, and a floating ball for supporting the rectangular buoyancy rod to float on the water surface is provided at the bottom surface of the rectangular buoyancy rod. A limiting groove for restricting the moving direction of the rectangular buoyancy rod is provided inside the water level baffle groove, and an observation port for facilitating the ranging camera to observe the scale change of the rectangular buoyancy rod is provided inside the water level baffle groove.

[0008] As an improvement, a protective glass glued by glass glue is provided in front of the ranging camera in the top surface groove of the horizontal end of the inverted U-shaped bracket.

[0009] As an improvement, arc chamfers for facilitating flood discharge are provided at the side end surfaces of the rectangular buoyancy rod.

[0010] As an improvement, the rectangular buoyancy rod and the floating ball are hollow shells, and the material of the rectangular buoyancy rod is polyurethane foam.

[0011] As an improvement, a pressure relief port for balancing the water pressure in the water level baffle groove is provided at the bottom surface of the water level baffle groove.

[0012] As an improvement, the horizontal rod of the inverted U-shaped bracket, the fixing clip of the signal converter, and the fixing plate of the solar power supply panel are connected to the vertical rod of the inverted U-shaped bracket and the side wall of the observation port of the horizontal rod of the inverted U-shaped bracket through bolt structures, and the wires connecting the solar power supply panel, the ranging camera, and the signal converter all pass through the internal through holes of the inverted U-shaped bracket.

[0013] The advantages of the present utility model compared with the prior art are as follows: The device changes the method of determining the water level by monitoring the water surface with a ranging camera to monitoring the scale of a rectangular buoyancy rod with a ranging camera. The floating ball at the bottom surface of the rectangular buoyancy rod is located in the river water, and the rectangular buoyancy rod is lifted by the buoyancy of the river water, and the scale of the rectangular buoyancy rod is detected by the ranging camera, and the monitoring of the river water level is completed by reading the scale. Brief Description of the Drawings

[0014] Figure 1 is the overall structure diagram of a river water level monitoring and warning device of the present utility model.

[0015] Figure 2 is the overall structure sectional view of a river water level monitoring and warning device of the present utility model.

[0016] Figure 3 is Figure 2 the partial enlarged view of part A of

[0017] Figure 4 is the overall structure explosion diagram of a river water level monitoring and warning device of the present utility model. <s

[0018] Figure 5 This is a structural diagram of a rectangular buoyancy rod for a river water level monitoring and early warning device according to this utility model.

[0019] As shown in the figure: 1. Factory-shaped bracket; 2. Solar power panel; 3. Rangefinder camera; 31. Protective glass; 4. Signal converter; 5. Water level baffle groove; 51. Limiting groove; 52. Observation port; 53. Pressure relief port; 6. Rectangular buoyancy rod; 61. Floating ball; 62. Chamfered arc surface. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings.

[0021] As per the instruction manual Figure 1 , 2 As shown in Figures 3, 4, and 5, the existing river water level monitoring and early warning device includes a frame 1 for fixing and connecting instruments, a solar power supply panel 2 located above the vertical rod of the frame 1, and a ranging camera 3 located at the horizontal end of the frame 1. The horizontal and vertical rods of the frame 1 are connected by bolts. In order to reduce weight, the frame 1 is a hollow structure, and the bottom end of the horizontal rod of the vertical rod has a groove that connects to the horizontal rod, so as to facilitate the connection of the wires of the solar power supply panel 2, the ranging camera 3, and the signal converter 4, thus achieving the effect of hiding the wiring.

[0022] To prevent the ranging camera 3 from being affected by extreme weather such as rain, the ranging camera 3 is located inside the top of the horizontal column of the I-beam bracket 1. A protective glass 31 is installed in front of the ranging camera 3 and is attached to the groove on the top surface of the horizontal column of the I-beam bracket 1 with glass glue. The protective glass 31 reduces the impact of external factors such as rain on the ranging camera 3. In order to ensure accurate monitoring of the river water level in heavy rain, a water level baffle groove 5 is installed at the top of the horizontal column of the I-beam bracket 1 and inserted into the river water. The side wall of the water level baffle groove 5 is connected to the top surface of the horizontal column of the I-beam bracket 1 by bolts. The interior of the water level baffle groove 5 is provided with an observation port 52 to facilitate the ranging camera 3 to observe the scale changes of the rectangular buoyancy rod 6.

[0023] To accurately monitor water level changes, the water level baffle trough 5 is equipped with a rectangular buoyancy rod 6 with graduations inside. The water level baffle trough 5 also includes a limiting groove 51 to restrict the movement of the rectangular buoyancy rod 6. To prevent rainwater from accumulating above the limiting groove 51, each side end of the rectangular buoyancy rod 6 has a chamfered arc surface 62 to facilitate flood discharge, allowing rainwater to flow into the river through the chamfered arc surface 62. To ensure buoyancy, the bottom of the rectangular buoyancy rod 6 has a floating ball 61 to support its movement on the water surface. The rectangular buoyancy rod 6 is a hollow shell made of polyurethane foam, filled with high-strength polyurethane foam plastic. Therefore, this material has low density and good buoyancy, and polyurethane foam is widely used in marine operations, aquaculture floats, and marine guardrails.

[0024] In order to ensure that the water level inside and outside the water level baffle trough 5 is the same, the bottom surface of the water level baffle trough 5 is provided with a pressure relief port 53 to balance the water pressure inside the water level baffle trough 5. While balancing the internal and external pressure through the pressure relief port 53, the influence of river water fluctuation on the floating ball 61 can be reduced.

[0025] In practical implementation, a rectangular buoyancy rod 6 of appropriate length is inserted into the limiting groove 51, and then a corresponding foam cover is welded to the top surface of the rectangular buoyancy rod 6 to prevent the rectangular buoyancy rod 6 from being washed away due to low water level. Then, the vertical end of the bracket 1 is fixed to the riverbank with expansion screws. The scale above the rectangular buoyancy rod 6 is observed through the ranging camera 3, and the water level is determined by the changes in these scales. The data signals of these images are remotely transmitted and summarized through the signal converter 4, and the feedback data is sorted and analyzed by the headquarters control system. When the water level value is too high, the system alarm system will be triggered to remind the staff to release floodwater or open the gate to prevent drought in a timely manner.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A river water level monitoring and early warning device, comprising a frame bracket (1) for fixedly connecting instruments, a solar power supply panel (2) located above the vertical rod of the frame bracket (1), and a ranging camera (3) located at the horizontal end of the frame bracket (1), wherein a signal converter (4) is provided on the vertical surface of the frame bracket (1) to receive and forward signals from the ranging camera (3), and the frame bracket (1) is a hollow structure, characterized in that: The ranging camera (3) is located inside the top of the horizontal column of the frame (1), and the top of the horizontal column of the frame (1) is provided with a water level baffle groove (5) that is inserted into the river water. The water level baffle groove (5) is provided with a rectangular buoyancy rod (6) with scale inside, and the bottom surface of the rectangular buoyancy rod (6) has a floating ball (61) that supports the rectangular buoyancy rod (6) to float on the water surface. The water level baffle groove (5) is provided with a limiting groove (51) that restricts the movement direction of the rectangular buoyancy rod (6). The water level baffle groove (5) is provided with an observation port (52) that facilitates the ranging camera (3) to observe the scale change of the rectangular buoyancy rod (6).

2. The river water level monitoring and early warning device according to claim 1, characterized in that: The rangefinder camera (3) is provided with a protective glass (31) in front of it, which is attached to the groove on the top surface of the horizontal end of the bracket (1) with glass glue.

3. The river water level monitoring and warning device according to claim 1, characterized in that: Each side end of the rectangular buoyancy rod (6) is provided with an arc-shaped chamfer (62) to facilitate flood discharge.

4. The river water level monitoring and warning device according to claim 1, characterized in that: The rectangular buoyancy rod (6) and the floating ball (61) are hollow shells, and the rectangular buoyancy rod (6) is made of polyurethane foam.

5. The river water level monitoring and warning device according to claim 1, characterized in that: The bottom surface of the water level baffle groove (5) is provided with a pressure relief port (53) to balance the water pressure inside the water level baffle groove (5).

6. The river water level monitoring and warning device according to claim 1, characterized in that: The horizontal bar of the frame bracket (1), the fixing clamp of the signal converter (4) and the fixing plate of the solar power supply panel (2) are all connected to the vertical bar of the frame bracket (1) and the horizontal bar of the frame bracket (1) are connected to the side wall of the observation port (52) by bolts. The wires connecting the solar power supply panel (2), the ranging camera (3) and the signal converter (4) all pass through the internal through holes of the frame bracket (1).

Images