Urban tunnel flooding automatic monitoring and early warning device and method

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By using ultrasonic sensor components to monitor the depth of water accumulation in urban tunnels, and combining control modules and indicator devices to achieve automatic monitoring and early warning, the problems of high costs and difficulty in data collection and integration in the existing technology are solved, and efficient tunnel flooding is achieved Monitoring and early warning.

CN119435139APending Publication Date: 2025-02-14FUJIAN NORMAL UNIV

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Patent Information

Application Number: CN202411916384.1
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2024-12-24
Publication Date: 2025-02-14

AI Technical Summary

Technical Problem

The existing technology relies on clear image data in automatic monitoring and early warning of urban tunnel flooding, which is costly and difficult to collect and integrate data.

Method used

Ultrasonic sensor components are used to monitor the depth of water accumulation in the tunnel, and automatic monitoring and early warning are realized through control modules and indicator devices, reducing dependence on image data.

Benefits of technology

It reduces monitoring costs, simplifies the data collection and integration process, and realizes automatic monitoring and early warning of tunnel flooding.

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Abstract

The invention discloses an automatic monitoring and early warning device for urban tunnel flooding in the field of tunnel monitoring. The automatic monitoring and early warning device comprises a control module; the ultrasonic sensor assembly is vertically arranged on a ceiling of the tunnel and used for monitoring the depth of accumulated water in the tunnel; the indicating device is fixedly arranged at the tunnel portal, and the indicating device and the ultrasonic sensor assembly are electrically connected with the control module; the control terminal is electrically connected with the control module through the wireless communication module; the invention further discloses a monitoring and early warning method. The tunnel flooding automatic monitoring and early warning system has the advantages that the ultrasonic probe is arranged to monitor the depth of accumulated water in the tunnel, the control module receives the depth of the accumulated water and judges the depth of the accumulated water, and therefore the indicating device is controlled, tunnel flooding automatic monitoring and early warning are achieved, cost is lower, and data integration is simpler.

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Description

Technical Field

[0001] The present invention relates to the field of tunnel monitoring, and in particular to an automatic monitoring and early warning device and method for urban tunnel flooding. Background Art

[0002] Under the background of global warming, the frequency and intensity of rainstorms are increasing, and urban waterlogging disasters are frequent, causing huge losses of life and property. The prevention, control and early warning of urban waterlogging disasters are under great pressure. Urban tunnels are an important part of the urban three-dimensional transportation network, and are also the hardest hit areas for urban waterlogging disasters.

[0003] The existing technologies for preventing urban waterlogging mainly include the following technical solutions:

[0004] Urban waterlogging early warning method based on image processing. The original image is segmented to obtain a grayscale image, and the water surface ratio of the water surface area and the road setting area is calculated. When the water surface ratio is greater than the first threshold, the water surface area is divided into multiple sub-areas, the sub-area similarity is calculated, and the sub-areas that meet the threshold are screened out, and then the water level is calculated based on the sub-area distance.

[0005] Determine the waterlogging warning results based on comprehensive analysis of water surface proportion and water level height. Create waterlogging model methods and systems, collect and preprocess data, collect and preprocess urban topography, land use, meteorology and other data. Collect terrain data using geographic information systems and topographic surveying technology, integrate deep learning algorithms and real-time data monitoring technology, dynamically adjust model parameters, respond to environmental changes in real time, and provide waterlogging risk assessment.

[0006] Urban governance data fusion analysis method and system. Build a ground three-dimensional model based on the urban terrain, obtain the sewer map and calculate the maximum flow rate by region. Set up edge monitoring nodes in the region to monitor the road water level, judge abnormal conditions based on weather forecasts, and predict the water level change curve based on monitoring data and rainfall. Simulate the flow direction of waterlogging based on the water level change curves of multiple monitoring nodes and the ground three-dimensional model, and push evacuation routes based on the urban road network and population density information.

[0007] However, the existing technology still has the following problems: it relies on clear image data, is costly, and is difficult to collect and integrate data.

[0008] To this end, we propose an automatic monitoring and early warning device and method for urban tunnel flooding. Summary of the invention

[0009] In view of the above-mentioned deficiencies in the prior art, the present invention provides an automatic monitoring and early warning device and method for urban tunnel flooding.

[0010] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0011] An automatic monitoring and early warning device for urban tunnel flooding, comprising: a control module;

[0012] Ultrasonic sensor assembly, vertically installed on the ceiling of the tunnel, to monitor the depth of water accumulation in the tunnel;

[0013] An indicating device is fixed at the tunnel entrance. The indicating device and the ultrasonic sensor assembly are electrically connected to the control module. The indicating device is used to provide early warning of the water level information in the tunnel.

[0014] The control terminal is electrically connected to the control module via the wireless communication module.

[0015] The water depth in the tunnel is monitored by an ultrasonic sensor assembly, and the data is transmitted to a control module. An indicator device is set at the tunnel entrance. The control module controls the indicator device to issue a prompt based on the water depth data in the tunnel from the ultrasonic sensor assembly to alert vehicles that are about to enter the tunnel. By setting up an ultrasonic sensor assembly to monitor the water depth, the cost of use is reduced and data collection and integration is made faster and more efficient.

[0016] It is further defined that the ultrasonic sensor assembly includes a universal fixing seat and an ultrasonic probe, the universal fixing seat is fixed on the ceiling of the tunnel, and the ultrasonic probe is fixed on the universal fixing seat; by fixing the ultrasonic probe on the ceiling of the tunnel through the universal fixing seat, the angle of the ultrasonic probe can be adjusted during installation so that it is vertically aligned with the road surface of the tunnel, thereby avoiding the ultrasonic probe from being skewed due to the uneven installation surface, thereby improving the monitoring effect.

[0017] It is further defined that the universal fixing seat includes a fixing plate, a universal cylinder, a universal ball and a mounting rod; the fixing plate is fixed in the tunnel by bolts pre-buried in the tunnel, the universal cylinder is vertically fixed on the fixing plate, the universal ball is rotatably clamped in the universal cylinder, the mounting rod is fixed on the universal ball, the ultrasonic probe is fixed on the mounting rod, and a locking device is provided on the universal cylinder to prevent the universal ball from rotating by itself; by setting a universal ball clamped in the universal cylinder, the universal ball can be rotated in the universal cylinder to adjust the angle, the ultrasonic probe is fixed on the mounting rod on the universal ball, and a locking device is provided to limit the universal ball after adjustment to prevent the universal ball from rotating by itself and changing the direction of the ultrasonic probe.

[0018] It is further defined that the locking device includes a screw barrel and a locking screw. The screw barrel is arranged on the circumferential surface of the universal barrel. The through hole in the screw barrel penetrates the circumferential surface of the universal barrel, and the locking screw is threadedly connected in the screw barrel. By arranging the screw barrel and the locking screw, the locking screw is screwed into the screw barrel through a thread until the end of the locking screw contacts the mounting ball, forming a friction limit thereon and completing the locking.

[0019] It is further defined that the indicating device includes an indicator light board and two connecting rods, the indicator light board is provided with a red light, a yellow light and a green light, the two connecting rods are vertically arranged at intervals on the indicator light board, and each connecting rod is provided with a fixing hole, and the connecting rod is fixed to the tunnel entrance by passing through the fixing holes with bolts pre-buried in the tunnel entrance; fixing the indicator light board by means of pre-buried bolts makes it convenient to replace the indicator light board without drilling holes again for replacement.

[0020] It is further defined that the fixing hole and the bolt embedded in the tunnel opening are clearance fit; by setting the fixing hole and the bolt as a clearance fit, the accuracy of the bolt embedding can be reduced, and the indicator light board can be fine-tuned to adapt to the embedded bolts with errors, thereby facilitating installation.

[0021] A monitoring and early warning method, using the above-mentioned urban tunnel flooding automatic monitoring and early warning device, comprises the following steps:

[0022] S1. Analyze the surface flow in the areas where each tunnel in the urban area is located through the precipitation data of the rain gauge station and the rainfall warning data of the meteorological station, estimate the amount of water entering the tunnel, and calculate the estimated water level d within half an hour with a set step size;

[0023] S2. The ultrasonic sensor component inputs the current real-time water depth a, warning flooding level b and dangerous flooding level c in the tunnel into the control module;

[0024] S3. If a≤b, compare the estimated water level d within half an hour with the warning flood level b; otherwise, compare the current real-time water depth a in the tunnel with the estimated water level d within half an hour and the dangerous flood level c;

[0025] S4. If d≤b, directly output that the tunnel water level has not reached the warning water level, and the indicator light is on in yellow. Otherwise, return to step S3; if a≥d, directly output that the tunnel water level has not reached the warning water level, and the indicator light is on in yellow. Otherwise, compare the estimated water level d within half an hour with the dangerous flooding water level c; if a≥c, directly output that the tunnel water level has reached the dangerous water level, and the indicator light is on in red; otherwise, the indicator light is on in yellow.

[0026] S5. If d≥c, the direct output tunnel water level reaches the dangerous water level, and the indicator device lights up red; otherwise, the direct output tunnel water level reaches the warning water level, and the indicator device lights up yellow.

[0027] The beneficial effects of the present invention are as follows: the water depth in the tunnel is monitored by setting an ultrasonic probe, and the water depth is received and judged by a control module, thereby controlling the indicating device to realize automatic monitoring and early warning of tunnel flooding, with lower costs and simpler data integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1The installation diagram of the present invention;

[0029] Figure 2 is a schematic diagram of the internal structure of an ultrasonic sensor assembly;

[0030] Figure 3 It is a schematic diagram of the connection of electrical components in the present invention;

[0031] Figure 4 Schematic diagram of the method principle.

[0032] The symbols of the components are as follows:

[0033] Control module 1, ultrasonic sensor assembly 2, universal fixing seat 21, fixing plate 211, universal cylinder 212, universal ball 213, mounting rod 214, screw cylinder 215, locking screw 216, ultrasonic probe 22, indicating device 3, indicator light board 31, connecting rod 32, control terminal 4. DETAILED DESCRIPTION

[0034] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0035] Example:

[0036] like Figure 1-Figure 4As shown, an automatic monitoring and early warning device for urban tunnel flooding includes a control module 1, an ultrasonic sensor assembly 2, an indicating device 3 and a control terminal 4; the control module 1 is a Raspberry Pi pico mainboard; the ultrasonic sensor assembly 2 is vertically arranged on the ceiling of the tunnel to monitor the depth of water accumulation in the tunnel; the ultrasonic sensor assembly 2 includes a universal fixing seat 21 and an ultrasonic probe 22, the universal fixing seat 21 is fixed on the ceiling of the tunnel, and the ultrasonic probe 22 is fixed on the universal fixing seat 21; the universal fixing seat 21 includes a fixing plate 211, a universal cylinder 212, a universal ball 213 and a mounting rod 214; the fixing plate 211 is fixed in the tunnel by bolts pre-buried in the tunnel, the universal cylinder 212 is vertically fixed on the fixing plate 211, the universal ball 213 is rotatably clamped in the universal cylinder 212, the mounting rod 214 is fixed on the universal ball 213, the ultrasonic probe 22 is fixed on the mounting rod 214, and the universal cylinder 212 is provided with a locking The device prevents the universal ball 213 from rotating by itself; the locking device includes a screw barrel 215 and a locking screw 216, the screw barrel 215 is arranged on the circumference of the universal barrel 212, the through hole in the screw barrel 215 penetrates the circumference of the universal barrel 212, and the locking screw 216 is threadedly connected in the screw barrel 215; the indicating device 3 is fixedly arranged at the tunnel entrance, the indicating device 3 and the ultrasonic sensor assembly 2 are electrically connected to the control module 1, and the indicating device 3 is used to realize early warning of the water level information in the tunnel; the indicating device 3 includes an indicator board 31 and two connecting rods 32, the indicator board 31 is provided with a red light, a yellow light and a green light, the two connecting rods 32 are vertically arranged on the indicator board 31 at intervals, and each connecting rod 32 is provided with a fixing hole, and the connecting rod 32 is fixed to the tunnel entrance through the fixing hole by a bolt pre-buried in the tunnel entrance; the fixing hole and the bolt pre-buried in the tunnel entrance are clearance-matched; the control terminal 4 is electrically connected to the control module 1 through the wireless communication module.

[0037] The water depth in the tunnel is monitored by the ultrasonic sensor assembly 2, and the data is transmitted to the control module 1. In addition, an indication device 3 is set at the tunnel entrance. The control module 1 controls the indication device 3 to issue a prompt based on the water depth data in the tunnel of the ultrasonic sensor assembly 2 to alert the vehicles that are about to enter the tunnel. By setting the ultrasonic sensor assembly 2 to monitor the water depth, the use cost is reduced, and data collection and integration are made faster and more efficient. The ultrasonic probe 22 is fixed to the ceiling of the tunnel through the universal fixing seat 21. The angle of the ultrasonic probe 22 can be adjusted during installation so that it is vertically aligned with the road surface of the tunnel, thereby avoiding the skew of the ultrasonic probe 22 due to the uneven installation surface, thereby improving the monitoring effect. By setting a universal ball 213 that is clamped in the universal cylinder 212, the universal ball 213 can be fixed on the universal cylinder 21 2 to adjust the angle, fix the ultrasonic probe 22 on the mounting rod 214 on the universal ball 213, and set a locking device to limit the universal ball 213 after adjustment, so as to prevent the universal ball 213 from rotating by itself and changing the direction of the ultrasonic probe 22; by setting a screw barrel 215 and a locking screw 216, screw the locking screw 216 into the screw barrel 215 through a thread until the end of the locking screw 216 contacts the mounting ball, forming a friction limit to it, and thus completing the locking; fixing the indicator light board 31 by means of embedded bolts facilitates the replacement of the indicator light board 31, and no drilling is required for replacement; by setting the gap between the fixing hole and the bolt to reduce the accuracy of the bolt embedding, the indicator light board 31 can be fine-tuned to adapt to the embedded bolts with errors, so as to facilitate installation.

[0038] A monitoring and early warning method, using the above-mentioned urban tunnel flooding automatic monitoring and early warning device, comprises the following steps:

[0039] S1. Analyze the surface flow in the areas where each tunnel in the urban area is located through the precipitation data of the rain gauge station and the rainfall warning data of the meteorological station, estimate the amount of water entering the tunnel, and calculate the estimated water level d within half an hour with a step length of one minute;

[0040] S2. The ultrasonic sensor assembly 2 inputs the current real-time water depth a, warning flooding level b and dangerous flooding level c in the tunnel into the control module 1;

[0041] S3. If a≤b, compare the estimated water level d within half an hour with the warning flood level b; otherwise, compare the current real-time water depth a in the tunnel with the estimated water level d within half an hour and the dangerous flood level c;

[0042] S4. If d≤b, directly output that the tunnel water level has not reached the warning water level, and the yellow light of the indicator device 3 is on; otherwise, return to step S3; if a≥d, directly output that the tunnel water level has not reached the warning water level, and the yellow light of the indicator device 3 is on; otherwise, compare the estimated water level d within half an hour with the dangerous flooding water level c; if a≥c, directly output that the tunnel water level has reached the dangerous water level, and the red light of the indicator device 3 is on; otherwise, the yellow light of the indicator device is on;

[0043] S5. If d≥c, directly output that the tunnel water level has reached the dangerous water level, and the red light of the indicator device 3 is on; otherwise, directly output that the tunnel water level has reached the warning water level, and the yellow light of the indicator device 3 is on.

Claims

1. An automatic monitoring and early warning device for urban tunnel flooding, characterized in that: include: Control module (1); An ultrasonic sensor assembly (2) is vertically arranged on the ceiling of the tunnel to monitor the depth of water accumulation in the tunnel; An indicating device (3) is fixedly arranged at the tunnel entrance, the indicating device (3) and the ultrasonic sensor assembly (2) are both electrically connected to the control module (1), and the indicating device (3) is used to provide early warning of water level information in the tunnel; The control terminal (4) is electrically connected to the control module (1) via a wireless communication module.

2. The automatic monitoring and early warning device for urban tunnel flooding according to claim 1 is characterized in that: The ultrasonic sensor assembly (2) comprises a universal fixing seat (21) and an ultrasonic probe (22); the universal fixing seat (21) is fixed on the ceiling of the tunnel, and the ultrasonic probe (22) is fixed on the universal fixing seat (21).

3. The automatic monitoring and early warning device for urban tunnel flooding according to claim 2 is characterized in that: The universal fixing seat (21) comprises a fixing plate (211), a universal cylinder (212), a universal ball (213) and a mounting rod (214); the fixing plate (211) is fixed in the tunnel by bolts pre-buried in the tunnel, the universal cylinder (212) is vertically fixed on the fixing plate (211), the universal ball (213) is rotatably clamped in the universal cylinder (212), the mounting rod (214) is fixed on the universal ball (213), the ultrasonic probe (22) is fixed on the mounting rod (214), and a locking device is provided on the universal cylinder (212) to prevent the universal ball (213) from rotating by itself.

4. The automatic monitoring and early warning device for urban tunnel flooding according to claim 2 is characterized in that: The locking device comprises a screw barrel (215) and a locking screw (216); the screw barrel (215) is arranged on the circumferential surface of the universal barrel (212); a through hole in the screw barrel (215) penetrates the circumferential surface of the universal barrel (212); and the locking screw (216) is threadedly connected in the screw barrel (215).

5. The automatic monitoring and early warning device for urban tunnel flooding according to claim 1 is characterized in that: The indicating device (3) comprises an indicator light board (31) and two connecting rods (32), the indicator light board (31) being provided with a red light, a yellow light and a green light, two connecting rods (32) being arranged vertically on the indicator light board (31) at intervals, and each connecting rod (32) being provided with a fixing hole, and the connecting rod (32) being fixed to the tunnel opening by bolts pre-buried in the tunnel opening and passing through the fixing holes.

6. The automatic monitoring and early warning device for urban tunnel flooding according to claim 5 is characterized in that: The fixing holes and the bolts pre-buried in the tunnel opening are clearance-fitted.

7. A monitoring and early warning method, using the automatic monitoring and early warning device for urban tunnel flooding as described in any one of claims 1 to 6, characterized in that: The steps include: S1. Analyze the surface flow in the areas where each tunnel in the urban area is located through the precipitation data of the rain gauge station and the rainfall warning data of the meteorological station, estimate the amount of water entering the tunnel, and calculate the estimated water level d within half an hour with a set step size; S2. The ultrasonic sensor assembly (2) inputs the current real-time water depth a, the warning flooding level b and the dangerous flooding level c in the tunnel into the control module (1); S3. If a≤b, compare the estimated water level d within half an hour with the warning flood level b; otherwise, compare the current real-time water depth a in the tunnel with the estimated water level d within half an hour and the dangerous flood level c; S4. If d≤b, directly output a signal indicating that the tunnel water level has not reached the warning water level, and the yellow light of the indicator device (3) is on; otherwise, return to step S3; If a≥d, a signal indicating that the tunnel water level has not reached the warning water level is directly output, and the yellow light of the indicator device (3) is on; otherwise, the estimated water level d within half an hour is compared with the dangerous flooding water level c, and step S5 is executed; If a ≥ c, a signal indicating that the tunnel water level has reached a dangerous level is directly output, and the indicator device (3) lights up red; otherwise, the indicator device (3) lights up yellow; S5. If d ≥ c, directly output a signal that the tunnel water level has reached a dangerous level, and the indicator device (3) turns red; Otherwise, a signal indicating that the tunnel water level has reached the warning water level is directly output, and the yellow light of the indicator device (3) turns on.