Wall-attached urban tunnel waterlogging monitoring device based on pressure water level sensor

Abstract

The utility model discloses a wall-attached urban tunnel waterlogging monitoring device based on a pressure water level sensor, which comprises a vertically arranged cuboid shell, the rear surface of the shell is used for being fixed on the side wall of a tunnel, and the bottom of the shell is provided with the pressure water level sensor used for measuring the water level. A lower electric control device, a lower power module, a GPS module and a lower wireless communication module are arranged at the top of the shell, and a vertical water inlet hole is formed in the middle of the front side of the shell; a wave blocking groove plate is arranged in front of the shell, the horizontal section of the wave blocking groove plate is in a groove shape with a backward opening, the rear end of the wave blocking groove plate is in clearance fit with the side wall of the tunnel, and a water inlet is formed between the rear end of the wave blocking groove plate and the side wall of the shell. A zigzag water inlet route is defined by the wave blocking groove plate, the shell, the water inlet and the water inlet hole, water in a tunnel cannot directly enter the shell, but can enter the shell after three turns, a good wave blocking effect is achieved, water surface fluctuation is greatly weakened, and the accuracy degree of water level measurement of the pressure water level sensor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of urban flood prevention, in particular to a tunnel waterlogging monitoring technology. Background Art

[0002] Urban waterlogging refers to the phenomenon that the city’s drainage system is unable to promptly drain water caused by heavy or continuous rainfall, which has a multi-faceted impact on the urban environment and residents’ lives, and even endangers the life, health and safety of travelers.

[0003] Urban tunnels are one of the places most prone to waterlogging. Water accumulation in tunnels can cause vehicles to slip and lose control, water to enter the engine, and other problems. It may not only cause traffic jams, but also endanger the life, health and safety of passers-by when the water depth is large. Therefore, it is necessary to monitor the water level in urban tunnels.

[0004] Existing monitoring technologies include:

[0005] 1. The disadvantage of ultrasonic liquid level sensor is that in an environment with high humidity, dust or water mist, the ultrasonic signal is disturbed, affecting the measurement accuracy.

[0006] 2. Radar level sensor. The disadvantage is that it is expensive and requires a good installation position and angle to avoid interference from reflected waves, which may cause position interference with other tunnel equipment.

[0007] 3. The disadvantage of the float level sensor is that it has low accuracy and is easily stuck by debris.

[0008] 4. Laser sensor. Its disadvantages are high cost, sensitivity to water reflection characteristics, different water qualities (color, suspended matter, turbidity, etc.) may produce different measurement results, and it is sensitive to dust, smoke, and water mist. These factors affect the reflection and propagation of lasers and the accuracy of measurement results.

[0009] 5. Pressure water level sensor.

[0010] The pressure water level sensor can convert liquid pressure into a water level height signal. It has the advantages of high precision and high sensitivity, good long-term stability, and can obtain real-time water levels. The defects are also obvious. The pressure water level sensor needs to contact water to sense changes in water pressure. The sensor is exposed and easily affected by external factors. Although the pressure water level sensor will be arranged near the side wall of the tunnel, pedestrians or vehicles may also press on the pressure water level sensor, which may be physically damaged, or at least affect the accuracy of the measurement. If the pressure water level sensor is enclosed, it will form an obstacle at the side wall of the tunnel.

[0011] The applicant has improved the technology of using pressure water level sensors to monitor tunnel water levels. There are two improvement ideas: one is underground installation and the other is wall-mounted installation.

[0012] Compared with the wall-mounted installation, the underground installation (the applicant's idea is to set it under the side wall) has the advantages of being more concealed and less likely to be damaged by contact with foreign objects. The wall-mounted installation has the advantages of being easy to emit sound and light warning information and being less likely to be blocked by the water inlet structure than the underground installation.

[0013] The utility model adopts the second improvement idea, that is, the improvement idea of ​​wall-mounted installation.

[0014] Wall-mounted installation is a method of installation above the ground. This method also has specific forms such as mobile base type, installation on light poles or special housings.

[0015] The advantage of the installation method of placing a mobile base on the tunnel ground is that it is easy and quick to install and can be moved to other tunnels for use as needed. However, it has the following disadvantages: when vehicles pass through the tunnel, it will disturb the surface water, and the fluctuation of the surface water will cause the mobile base to move, resulting in large errors in the monitoring results.

[0016] It is very inconvenient to install and fix on the light pole. Installation in a special shell often has the defect that the equipment is top-heavy. The anchor bolts are easily soaked in water and are prone to loosening or rusting during long-term use, resulting in the equipment being unstable.

[0017] The common defect of the above installation forms is that they all have water inlets, which will disturb the surface water when vehicles pass by, and strong winds will also cause fluctuations in the surface water. The fluctuations in the surface water will have a significant impact on the accuracy of the equipment's water level detection through the water inlet.

[0018] The improved idea of ​​the wall-mounted installation of the utility model is that the wall-mounted installation no longer relies on anchor bolts, thereby avoiding the problems caused by loosening or rusting of anchor bolts; by setting a wave-blocking structure, the influence of ground water fluctuations on the water level in the device is greatly weakened, and a water level alarm function is combined to send clear warning information to passing drivers when the water is deep (it is not easy to send warning information to passing drivers in the underground type). Utility Model Content

[0019] The purpose of the utility model is to provide a wall-mounted urban tunnel waterlogging monitoring device based on a pressure water level sensor, which takes advantage of the inherent advantages of wall-mounted installation and significantly reduces the negative impact of water surface fluctuations on water level measurement when vehicles pass through.

[0020] To achieve the above-mentioned purpose, the utility model provides a wall-mounted urban tunnel waterlogging monitoring device based on a pressure water level sensor, with the direction pointing to the tunnel centerline as the forward direction and the tunnel length direction as the left and right direction, comprising a vertically arranged rectangular parallelepiped shell, the rear surface of which is used to be fixed on the tunnel side wall,

[0021] A pressure water level sensor for measuring the water level is provided at the bottom of the shell, and a lower power module, a GPS module, a lower electric control device and a lower wireless communication module are provided at the top of the shell. The lower power module is connected to the pressure water level sensor, the GPS module, the lower electric control device and the lower wireless communication module through a power supply line. The lower wireless communication module, the pressure water level sensor and the GPS module are all connected to the lower electric control device through a communication line, and the lower electric control device is connected to the lower power module through a power supply line.

[0022] A vertical water inlet hole is provided in the middle of the front side of the shell;

[0023] A wave-breaking groove plate is provided in front of the shell, and a connecting rod is provided between the wave-breaking groove plate and the shell; the horizontal section of the wave-breaking groove plate is in a groove shape with an opening facing backwards, the rear end of the wave-breaking groove plate is matched with the clearance of the tunnel side wall, and a water inlet is formed between the rear end of the wave-breaking groove plate and the side wall of the shell.

[0024] The top of the shell is connected upward with an audible and visual alarm; the audible and visual alarm is connected to the lower power module through a power supply line and is connected to the electric control device through a communication line.

[0025] A filter is provided at the rear end of the water inlet.

[0026] It also includes a tunnel entrance warning device; the tunnel entrance warning device includes a vertical shell arranged on the ground at the tunnel entrance, a display is provided on the top of the shell, an upper electric control device, an upper power module and an upper wireless communication module are provided in the shell, the upper power module is connected to the upper electric control device, the display and the upper wireless communication module through a power supply line, and the upper wireless communication module and the display are both connected to the upper electric control device through a communication line.

[0027] The utility model has the following advantages:

[0028] The utility model adopts the wall-mounted installation, which naturally has the inherent advantages of the wall-mounted installation. The wave-blocking groove plate, the shell, the water inlet and the water inlet hole form a Figure 2The tortuous water inlet route shown in the direction of the middle arrow. With the structure of the utility model, the water in the tunnel will not directly enter the shell, but will enter the shell after three turns. The first turn is the turn from front to back to back to front at the water inlet. The second turn is the turn from back to front to forward along the left and right direction toward the water inlet hole at the intersection of the water inlet and the front surface of the shell, that is, the turn from the front and back direction to the left and right direction; the third turn is the turn from the left and right direction to the front and back direction at the water inlet. The three turns have a good wave-blocking effect, greatly weaken the fluctuation of the water surface, and improve the accuracy of the pressure water level sensor in measuring the water level. The installation position of the lower wireless communication module is higher than the buried type and there is no tunnel side wall to block the signal, so the communication effect is relatively better. Of course, the wall-mounted installation will naturally prevent vehicles or pedestrians from pressing on the pressure water level sensor, and it is also unnecessary to connect to the ground through anchor bolts (the connection point with the tunnel side wall can be higher so that it is not easily soaked by water).

[0029] When in use, the lower wireless communication modules of the utility model of multiple tunnels are connected to the remote server of the remote monitoring room, and the remote server is connected to a display screen and a remote wireless communication module. When the staff of the remote monitoring room finds that the water level in a tunnel is too deep, the remote wireless communication module communicates with the lower wireless communication module in the utility model, and controls the sound and light alarm in the utility model in the corresponding tunnel through the lower electronic control device to send out a sound and light alarm, prompting the vehicle drivers who are about to go down into the tunnel to pay attention to the danger and stop entering.

[0030] The filter screen can prevent debris carried by ground water from entering the shell, ensuring the long-term stable operation of the utility model.

[0031] The upper wireless communication module obtains the water level information of the tunnel through the lower wireless communication module and displays it on the display. The driver can see the water level information at the tunnel entrance, which serves as a first-level warning to the driver. The sound and light alarm serves as a second-level warning to the driver below the tunnel slope. The two-level warning can increase the probability of the driver noticing the warning information and reduce the probability of the vehicle entering the tunnel with a high water level. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the utility model. Figure 1 The power supply lines and communication lines in the figure, as well as the internal structures of the shell such as the lower power module, should be dotted lines. For the sake of clarity, they are not expressed as dotted lines. To avoid cluttered lines, the power supply lines and signal lines are not fully displayed.

[0033] Figure 2 yes Figure 1 AA cross-section view (top view).

[0034] Figure 3It is a structural diagram of a tunnel entrance warning device.

[0035] Figure 4 It is a structural schematic diagram of the utility model installed at upper and lower positions of a slope on one side of a tunnel.

[0036] Figure 5 It is a schematic diagram of the electric control structure of the utility model. DETAILED DESCRIPTION

[0037] like Figures 1 to 5 As shown, the utility model provides a wall-mounted urban tunnel waterlogging monitoring device based on a pressure water level sensor, with the direction pointing to the tunnel centerline as the forward direction and the tunnel length direction as the left and right direction, comprising a vertically arranged rectangular parallelepiped housing 1, the rear surface of the housing 1 is used to be fixed on the tunnel side wall;

[0038] A pressure water level sensor 2 for measuring the water level is provided at the bottom of the housing 1, and a lower power module 3, a GPS module 4, a lower electric control device 20 and a lower wireless communication module 5 are provided at the top of the housing 1. The lower power module 3 is connected to the pressure water level sensor 2, the GPS module 4, the lower electric control device 20 and the lower wireless communication module 5 through a power supply line. The lower wireless communication module 5, the pressure water level sensor 2 and the GPS module 4 are all connected to the lower electric control device 20 through a communication line, and the lower electric control device 20 is connected to the lower power module 3 through a power supply line.

[0039] A vertical water inlet hole 6 is provided in the middle of the front side of the housing 1;

[0040] A wave-breaking trough plate 7 is provided in front of the shell 1, and a connecting rod 8 is provided between the wave-breaking trough plate 7 and the shell 1; the horizontal cross-section of the wave-breaking trough plate 7 is in the shape of a trough with an opening facing backwards, the rear end of the wave-breaking trough plate 7 is fitted with a clearance between the tunnel side wall, and a water inlet 9 is formed between the rear end of the wave-breaking trough plate 7 and the side wall of the shell 1.

[0041] The utility model adopts the wall-mounted installation, which naturally has the inherent advantages of the wall-mounted installation. The wave-blocking groove plate 7, the shell 1, the water inlet 9 and the water inlet hole 6 form a Figure 2 The tortuous water inlet route is shown in the direction of the middle arrow. With the structure of the utility model, the water in the tunnel will not directly enter the shell 1, but will enter the shell 1 after three turns. The first turn is the turn from front to back to back to front at the water inlet 9. The second turn is the turn from back to front to forward along the left and right direction toward the water inlet 6 at the intersection of the water inlet 9 and the front surface of the shell 1, that is, the turn from the front-to-back direction to the left-to-right direction; the third turn is the turn from the left-to-right direction to the front-to-back direction at the water inlet 6. The three turns have a good wave-blocking effect, greatly weaken the water surface fluctuations, and improve the accuracy of the pressure water level sensor 2 in measuring the water level.

[0042] The top of the housing 1 is connected upward with an audible and visual alarm 10 ; the audible and visual alarm 10 is connected to the lower power module 3 through a power supply line and is connected to the electric control device 20 through a communication line.

[0043] When in use, the lower wireless communication modules 5 of the utility model of multiple tunnels are connected to the remote server 18 of the remote monitoring room, and the remote server 18 is connected to the display screen and the remote wireless communication module 19. When the staff of the remote monitoring room finds that the water level in a tunnel is too deep, the remote wireless communication module 19 communicates with the lower wireless communication module 5 of the utility model, and the lower electric control device 20 controls the sound and light alarm 10 of the utility model in the corresponding tunnel to send out a sound and light alarm, prompting the vehicle driver who is about to go down to the tunnel to pay attention to the danger and stop driving. The display screen is conventional technology, not shown in the figure.

[0044] A filter screen 11 is provided at the rear end of the water inlet 9. The filter screen 11 can prevent debris carried by ground water from entering the housing 1, thereby ensuring long-term stable operation of the utility model.

[0045] It also includes a tunnel entrance warning device; the tunnel entrance warning device includes a vertical housing 13 arranged on the ground 12 at the entrance of the tunnel 14, a display 15 is provided on the top of the housing 13, an upper electric control device 21, an upper power module 16 and an upper wireless communication module 17 are provided in the housing 13, the upper power module 16 is connected to the upper electric control device 21, the display 15 and the upper wireless communication module 17 through a power supply line, and the upper wireless communication module 17 and the display 15 are both connected to the upper electric control device 21 through a communication line.

[0046] The lower electric control device 20 and the upper electric control device 21 can be integrated circuits or single-chip microcomputers (including PLC), such as single-chip microcomputer 51. The upper power module 16 and the lower power module 3 are configured in the same manner, and both have batteries or are connected to the municipal power supply line, or both have batteries and are connected to the municipal power supply line. The lower wireless communication module 5 and the upper wireless communication module 17 are preferably 4G modules or 5G modules or LORA wireless communication modules.

[0047] The upper wireless communication module 17 obtains the water level information of the tunnel water through the lower wireless communication module 5, and the upper electronic control device 21 controls the display 15 to display the water level information of the tunnel water. The driver can see the water level information at the tunnel entrance, which serves as a first-level warning to the driver. The sound and light alarm 10 serves as a second-level warning to the driver below the tunnel slope. The two-level warning can increase the probability of the driver noticing the warning information and reduce the probability of the vehicle entering the tunnel with a high water level.

[0048] Before use, the housing 1 and the wave-breaking groove plate 7 are installed on the tunnel side wall below the tunnel slope, and the tunnel entrance warning device is installed on the ground above the tunnel slope to form a two-level warning. The utility model can symmetrically set two sets at the entrances on both sides of the tunnel to perform two-way warnings. The utility model is installed in multiple urban tunnels that require water level monitoring, and a remote monitoring room is set up to monitor the water level information at each tunnel through a remote server 18.

[0049] When the tunnel is flooded during use, the water will accumulate along the Figure 2 The zigzag route indicated by the middle arrow enters the shell 1, and has a good wave-blocking effect through three route bends, which greatly weakens the water surface fluctuations and improves the accuracy of the water level measured by the pressure water level sensor 2. The measurement data of the pressure water level sensor 2 is transmitted by the lower wireless communication module 5 to the upper wireless communication module 17 and the remote server 18. The display 15 of the tunnel entrance warning device above the tunnel slope shows the current water level of the tunnel according to the signal provided by the upper wireless communication module 17. The driver who is about to go downhill can decide whether to go downhill according to the water level information to avoid the danger of going downhill when the water level is deep. The staff of the remote monitoring room decides which tunnels to open the sound and light alarm 10 of the utility model according to the water level of each tunnel displayed on the display screen of the remote server 18, and gives the driver a secondary warning. At the same time, the staff of the remote monitoring room obtains the location information of the tunnel with deep water accumulation through GPS information, and arranges flood control or firefighting personnel to deal with the dangerous situation and carry out possible rescue work.

[0050] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A wall-mounted urban tunnel flood monitoring device based on a pressure water level sensor, with the direction pointing to the tunnel centerline as the forward direction and the tunnel length direction as the left and right direction, comprises a vertically arranged rectangular parallelepiped housing, the rear surface of which is used to be fixed on the tunnel side wall, and is characterized by: A pressure water level sensor for measuring the water level is provided at the bottom of the shell, and a lower power module, a GPS module, a lower electric control device and a lower wireless communication module are provided at the top of the shell. The lower power module is connected to the pressure water level sensor, the GPS module, the lower electric control device and the lower wireless communication module through a power supply line. The lower wireless communication module, the pressure water level sensor and the GPS module are all connected to the lower electric control device through a communication line, and the lower electric control device is connected to the lower power module through a power supply line. A vertical water inlet hole is provided in the middle of the front side of the shell; A wave-breaking groove plate is provided in front of the shell, and a connecting rod is provided between the wave-breaking groove plate and the shell; the horizontal cross-section of the wave-breaking groove plate is in a groove shape with an opening facing backwards, the rear end of the wave-breaking groove plate is matched with the clearance of the tunnel side wall, and a water inlet is formed between the rear end of the wave-breaking groove plate and the side wall of the shell.

2. The wall-mounted urban tunnel waterlogging monitoring device based on a pressure water level sensor according to claim 1 is characterized in that: The top of the shell is connected upward with an audible and visual alarm; the audible and visual alarm is connected to the lower power module through a power supply line and is connected to the electric control device through a communication line.

3. The wall-mounted urban tunnel waterlogging monitoring device based on pressure water level sensor according to claim 1 is characterized in that: A filter is provided at the rear end of the water inlet.

4. The wall-mounted urban tunnel waterlogging monitoring device based on a pressure water level sensor according to any one of claims 1 to 3, characterized in that: It also includes a tunnel entrance warning device; the tunnel entrance warning device includes a vertical shell arranged on the ground at the tunnel entrance, a display is provided on the top of the shell, an upper electric control device, an upper power module and an upper wireless communication module are provided in the shell, the upper power module is connected to the upper electric control device, the display and the upper wireless communication module through a power supply line, and the upper wireless communication module and the display are both connected to the upper electric control device through a communication line.

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