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CN-122024415-A - Urban flood disaster monitoring and early warning device and application method thereof

CN122024415ACN 122024415 ACN122024415 ACN 122024415ACN-122024415-A

Abstract

The invention provides an urban flood disaster monitoring and early warning device and a use method thereof, wherein the urban flood disaster monitoring and early warning device comprises a supporting mechanism, and a protective shell and an ultrasonic liquid level meter are arranged at the top end of the supporting mechanism; the detection end of the ultrasonic liquid level meter stretches into the protective shell, a first through hole is formed in the bottom of the protective shell, the detection end of the ultrasonic liquid level meter is located at the top end of the through hole, a cleaning mechanism is arranged on the inner side of the protective shell, and the cleaning mechanism is used for cleaning the detection end of the ultrasonic liquid level meter. According to the ultrasonic liquid level meter detection end cleaning device, the cleaning mechanism and the purging mechanism are arranged, so that automatic cleaning of the ultrasonic liquid level meter detection end is realized, measurement errors caused by dust adhesion after long-term use are avoided, long-term operation stability of the device is improved, manual regular door cleaning is not needed, and operation and maintenance cost is reduced.

Inventors

  • WANG DIANCHANG
  • ZHANG JUN
  • WU KUNMING
  • HU ZUKANG
  • CHENG LEI

Assignees

  • 中国长江三峡集团有限公司
  • 长江生态环保集团有限公司

Dates

Publication Date
20260512
Application Date
20260325

Claims (10)

  1. 1. The urban flood disaster monitoring and early warning device is characterized by comprising a supporting mechanism (1), wherein a protective shell (3) and an ultrasonic liquid level meter (2) are arranged at the top end of the supporting mechanism (1); The detection end of the ultrasonic liquid level meter (2) stretches into the protective shell (3), a first through hole (301) is formed in the bottom of the protective shell (3), and the detection end of the ultrasonic liquid level meter (2) is located at the top end of the through hole (301); the inner side of the protective shell (3) is provided with a cleaning mechanism which is used for cleaning the detection end of the ultrasonic liquid level meter (2).
  2. 2. The urban flood disaster monitoring and early warning device according to claim 1 is characterized in that the supporting mechanism (1) comprises a base (102), and a supporting column (101) is arranged at the top of the base (102); The support column (101) is provided with an electronic display screen (103), a control box (104) and an audible and visual alarm (105), the electronic display screen (103) is used for displaying detection data and a control panel, the control box (104) is used for setting control equipment and a control structure, and the audible and visual alarm (105) is used for carrying out flood disaster audible and visual alarm; The top end of the supporting column (101) is provided with an inclined supporting rod (106), and the protective shell (3) and the ultrasonic liquid level meter (2) are positioned at one end of the inclined supporting rod (106) far away from the supporting column (101).
  3. 3. The urban flood disaster monitoring and early warning device according to claim 1, wherein the cleaning mechanism comprises a driving piece and a movable groove (603) which are arranged in the protective shell (3); the movable groove (603) is a circular groove, a rotating rod (604) is arranged in the center of the movable groove (603), and the driving piece is used for driving the rotating rod (604) to rotate; The rotating rod (604) is provided with a cleaning brush (605), one side of the cleaning brush (605) is provided with a plurality of bristles, the rotating rod (604) rotates to drive the cleaning brush (605) to rotate, and the cleaning brush (605) is used for cleaning the detection end of the ultrasonic liquid level meter (2) through the bristles in the rotating process; the rotation range of the cleaning brush (605) is positioned in the movable groove (603); The driving piece comprises a motor (601) arranged in the protective shell (3), and an output shaft of the motor (601) is connected with a rotating rod (604); the protective shell (3) is provided with a heat dissipation hole (602), and the heat dissipation hole (602) is communicated with a cavity where the motor (601) is located.
  4. 4. The urban flood disaster monitoring and early warning device according to claim 3 is characterized in that a connecting plate (608) is arranged in the movable groove (603), and the connecting plate (608) is positioned at one side, close to the brush hair, in the movable groove (603); One side of the connecting plate (608) close to the brush hair is provided with a plurality of protruding blocks (609); The protruding block (609) is used for cleaning sundries on the brush hair when the cleaning brush (605) rotates.
  5. 5. The urban flood disaster monitoring and early warning device according to claim 3 is characterized in that an operation hole is formed in the side face of the protective shell (3), the operation hole is communicated with the movable groove (603), a cover plate (302) for covering the operation hole is arranged on the side face of the protective shell (3), and the section size of the operation hole is larger than that of the cleaning brush (605); One side of the cleaning brush (605) close to the rotating rod (604) is provided with a connecting sleeve (606), the rotating rod (604) is provided with a plug-in post (607), and the plug-in post (607) is plugged into the connecting sleeve (606); the plug-in column (607) is connected with the connecting sleeve (606) in a plug-in way.
  6. 6. The urban flood disaster monitoring and early warning device according to claim 3 is characterized in that a purging mechanism (7) is arranged in the protective shell (3), and the purging mechanism (7) blows air to increase the cleaning effect; The purging mechanism (7) comprises a mounting groove (701) arranged in the protective shell (3), and a fan (702) is arranged in the mounting groove (701); A connecting pipe (703) and an air inlet (704) are arranged in the protective shell (3), and the connecting pipe (703) and the air inlet (704) are communicated with opposite sides of the mounting groove (701) and are positioned at two sides of the fan (702); The air inlet hole (704) extends to the side surface of the protective shell (3); The rotating rod (604) is provided with an air inlet slot (705) along the central shaft, one end of the connecting pipe (703) far away from the fan (702) is provided with a connecting ring (708), and the connecting ring (708) is rotationally connected to the end part of the air inlet slot (705); A through groove (706) is arranged in the cleaning brush (605), and the through groove (706) is communicated with the air inlet groove (705); One side of the cleaning brush (605) close to the brush hair is provided with a plurality of air outlet holes (707).
  7. 7. The urban flood disaster monitoring and early warning device according to claim 6, wherein the protective shell (3) is provided with a filtering mechanism (4), and the filtering mechanism (4) is used for filtering wind entering through the air inlet hole (704); the filtering mechanism (4) comprises a plugboard (401) which is spliced in the protective shell (3); the plugboard (401) passes through the mounting groove (701), a filter screen (403) is arranged in the plugboard (401), and the filter screen (403) covers the mounting groove (701); The plugboard (401) is connected with the protective shell (3) through a screw (402).
  8. 8. The urban flood disaster monitoring and early warning device according to any one of claims 1 to 7 is characterized in that a second through hole (501) is arranged at the bottom of the protective shell (3), and a comparison plate (5) is arranged in the protective shell (3); the control plate (5) is positioned above the second through hole (501), and the shape and the height of the bottom surface of the control plate (5) are matched with the detection end of the ultrasonic liquid level meter (2); The control board (5) is a transparent board, and a plurality of sensors are arranged in the protective shell (3) and used for controlling dust adhesion of the board (5).
  9. 9. The method for using the urban flood disaster monitoring and early warning device according to any one of claims 1 to 8, which is characterized by comprising the following steps: s1, a control group is arranged close to an ultrasonic liquid level meter and is in the same environment with the ultrasonic liquid level meter; S2, performing a detection experiment, training an intelligent cleaning decision model, and guiding the intelligent cleaning decision model into a control unit; the device is arranged in a detected area; S3, detecting and collecting detection data in real time, wherein the detection data comprise dust adhesion conditions, moisture conditions and a last cleaning time interval of a control group; S4, transmitting the collected detection data to a control unit, and judging through an intelligent cleaning decision model; s5, when the cleaning is judged to be needed, the ultrasonic liquid level meter is cleaned through the cleaning mechanism, and the control group is cleaned synchronously; s6, cleaning is completed; S7, repeating the steps S3-S6.
  10. 10. The method for using the urban flood disaster monitoring and early warning device according to claim 1 is characterized in that in S2, experimental contents comprise detection data values of an ultrasonic liquid level meter and a control group under the conditions of different dust adhesion degrees and different humidity; Based on an experimental data set, an intelligent cleaning decision model is trained by preferably Adaboost iterative Boosting learning algorithm, the weighting coefficients of all parameters are obtained through fitting, and meanwhile, a cleaning trigger threshold is obtained through calibration according to the maximum allowable measurement error of an ultrasonic liquid level meter ; In S4, the process of judging by the intelligent cleaning decision model is as follows: s41, parameter normalization quantization; s42, calculating a cleanliness necessity index J based on the quantized parameters; S43, the calculated cleanliness necessity index J and a preset cleaning trigger threshold value Comparison was performed: If it is The current pollution degree is lower, the measurement error of the ultrasonic liquid level meter is in the allowable range, cleaning operation is not needed, and the step S3 is returned to continuously collect data; If it is Indicating that the current contamination has caused measurement errors beyond the allowable range, a self-cleaning operation needs to be triggered, and the next step is entered.

Description

Urban flood disaster monitoring and early warning device and application method thereof Technical Field The invention relates to the technical field of flood disaster monitoring, in particular to an urban flood disaster monitoring and early warning device and a use method thereof. Background With the acceleration of the urban process, the area of the urban hardened pavement is continuously enlarged, the underwater seepage capability of the rainwater is weakened, and the urban flood disasters are increasingly serious due to frequent weather. Urban flooding not only can cause traffic paralysis and property loss, but also can threaten life safety of residents. Therefore, in the context of rapid urban development, flood disasters become an important factor that seriously affects urban safety and resident life. With the frequent occurrence of extreme weather events, urban flood problems are increasingly prominent, and obvious threats are brought to urban infrastructure, ecological environment and resident life. Therefore, monitoring and early warning flood disasters in time is particularly important. Most of the existing cities can use the flood disaster monitoring and early warning device, and when the flood disaster monitoring and early warning device is used, liquid level monitoring is carried out through an ultrasonic liquid level meter in the flood disaster monitoring and early warning device. The target flood monitoring point is generally a road water accumulation point, and floating dust brought by vehicles on the road surface can form serious shielding on the ultrasonic surface. Slight shielding, blocked acoustic wave propagation paths, rapid attenuation of signals, rising of ultrasonic power and improvement of energy consumption of the device. Severe occlusion, which causes the echo signal to become weaker and even absorbed, can cause a large deviation in the degree of the device. In addition, condensation water drops on the surface of the probe or heavy water vapor in the environment can seriously obstruct ultrasonic wave transmission and reception, and especially in the outdoor with large temperature difference, the condensation of the probe is a common cause of signal jump. Most of the existing urban flood disaster monitoring and early warning devices lack self-cleaning functions when an ultrasonic liquid level meter for liquid level monitoring is used, and the monitoring result of the device is greatly drifted or jumped after long-term use. Most of the existing operation and maintenance parties can clean manually in a fixed period cleaning mode, but the cleaning time cannot be adjusted in a self-adaptive mode according to the actual pollution degree and environmental conditions, and the problems that errors exceed standards due to untimely cleaning or energy is wasted due to excessive cleaning are easy to occur. Disclosure of Invention The invention mainly aims to provide an urban flood disaster monitoring and early warning device and a use method thereof, which solve the problems that in the prior art, an ultrasonic liquid level meter is easy to be polluted by dust, so that measurement errors are large, and the cleaning time cannot be judged in a self-adaptive manner. In order to solve the technical problems, the invention adopts the preferable technical scheme that: The city flood disaster monitoring and early warning device comprises a supporting mechanism, wherein a protective shell and an ultrasonic liquid level meter are arranged at the top end of the supporting mechanism; The detection end of the ultrasonic liquid level meter extends into the protective shell, a first through hole is formed in the bottom of the protective shell, and the detection end of the ultrasonic liquid level meter is positioned at the top end of the through hole; the inner side of the protective shell is provided with a cleaning mechanism which is used for cleaning the detection end of the ultrasonic liquid level meter. In the preferred scheme, the supporting mechanism comprises a base, and a supporting column is arranged at the top of the base; The support column is provided with an electronic display screen, a control box and an audible and visual alarm, wherein the electronic display screen is used for displaying detection data and a control panel, the control box is used for setting control equipment and a control structure, and the audible and visual alarm is used for carrying out audible and visual alarm on flood disasters; The top end of the supporting column is provided with an inclined supporting rod, the protective shell and the ultrasonic liquid level meter are positioned one end of the diagonal brace away from the support column. In a preferred scheme, the cleaning mechanism comprises a driving piece and a movable groove which are arranged in the protective shell; the movable groove is a circular groove, a rotating rod is arranged in the center of the movable groove, and the driving piece is used for driving