Tunnel drainage system monitoring platform

Abstract

The utility model belongs to the technical field of water supply and drainage engineering, and provides a tunnel drainage system monitoring platform which is composed of a system server and a drainage pipeline monitoring device, and the drainage pipeline monitoring device is composed of an elastic ring, a control box and a collection device. A control module, a data processing module and a positioning module are arranged in the control box, the control box is electrically connected with the system server through a data optical cable, and the system server receives and processes collected monitoring data; ultrasonic flow sensors are symmetrically mounted on the front side and the rear side of the top of the elastic ring, a main body of the elastic ring is made of elastic metal or elastic plastic, a notch is reserved in the bottom of the elastic ring, and the elastic ring can be directly clamped to a drainage pipe from top to bottom during use; according to the scheme, the monitoring network is formed through the flexibly arranged drainage pipeline monitoring devices, the tunnel drainage system can be systematically and comprehensively monitored, dead-corner-free monitoring is achieved, and the drainage pipeline monitoring devices are also very convenient to mount and dismount.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of water supply and drainage engineering, in particular to a tunnel drainage system monitoring platform. BACKGROUND

[0002] The conventional tunnel drainage system lacks comprehensive and real-time monitoring of drainage flow, for example, sudden increase in flow may mean that a large amount of water accumulation caused by extreme weather such as rainstorm needs to be discharged, or sudden decrease in flow may be caused by partial blockage of the pipeline, and management personnel cannot timely find problems such as damage and leakage of the pipeline, and manual investigation is too laborious and material consuming, which makes the tunnel drainage system greatly tested during peak period, and if the pipeline is blocked or damaged, it is easy to cause danger such as backflow of the tunnel, and the tunnel drainage system monitoring platform is proposed based on the above reasons. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a tunnel drainage system monitoring platform to solve the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a tunnel drainage system monitoring platform is composed of a system server and a drainage pipeline monitoring device, the drainage pipeline monitoring device is composed of an elastic ring, a control box and an acquisition device; a control module, a data processing module and a positioning module are arranged in the control box, the control box is electrically connected with the system server through data optical cable, and the system server receives and processes the monitored data collected;

[0005] The top of the elastic ring is symmetrically provided with ultrasonic flow sensors on the front and back sides, the main body of the elastic ring is made of elastic metal or elastic plastic, and an opening is reserved at the bottom of the elastic ring, the elastic ring can be directly clamped on the drainage pipeline from top to bottom during use, the convenience and efficiency of installation are greatly improved, and the monitoring device can be quickly deployed without complex pipeline modification or disassembly operation; the two sides of the elastic ring are symmetrically embedded with capacitive liquid level sensors, and one end of the capacitive liquid level sensor extends to the inner side of the elastic ring.

[0006] Preferably, the elastic ring is sleeved on the drainage pipeline, and a locking bolt is arranged at the top of the elastic ring, and the control box is also located at the top of the elastic ring.

[0007] Preferably, the locking bolt sequentially controls the control box and the elastic ring from top to bottom, and the bottom of the locking bolt abuts against the outer wall of the drainage pipeline, and the elastic ring is fixed through the friction between the bottom of the locking bolt and the outer wall of the drainage pipeline.

[0008] Preferably, the capacitive liquid level sensor is a non-contact capacitive sensor, and a plurality of capacitive liquid level sensors are symmetrically distributed along two sides of the elastic ring, and the liquid level change in the drain pipe is detected by the capacitive liquid level sensors at different positions.

[0009] Compared with the prior art, the utility model has the advantages that:

[0010] The drainage pipe monitoring device is arranged flexibly to form a monitoring network, so that the tunnel drainage system can be monitored systematically and comprehensively, and the drainage pipe monitoring device is easy to install and disassemble.

[0011] The drainage pipe is monitored by the ultrasonic flow sensor and the capacitive liquid level sensor, so that the drainage capacity change of the drainage pipe can be timely and accurately reflected, and the drainage pipe can be monitored whether in a low-flow leakage detection mode or in a high-flow peak drainage monitoring mode, and the liquid level change in the drainage pipe can be accurately obtained, and reliable data support is provided for preventing backflow and overflow caused by excessively high liquid level. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a front view of the drainage pipe monitoring device of the utility model;

[0013] Fig. 2 It is a side view of the drainage pipe monitoring device of the utility model;

[0014] Fig. 3 It is a system logic block diagram of the utility model.

[0015] In the figure: 1 elastic ring; 2 control box; 3 locking bolt; 4 ultrasonic flow sensor; 5 capacitive liquid level sensor. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0017] In the description of the utility model, it should be understood that the terms "up", "down", "front", "back", "left", "right", "top", "bottom", "in", "out" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0018] Embodiment:

[0019] Please refer to Figs. 1-3 The utility model provides the following technical scheme: a tunnel drainage system monitoring platform is composed of a system server and a drainage pipe monitoring device, the drainage pipe monitoring device is composed of an elastic ring 1, a control box 2 and an acquisition device;

[0020] The control box 2 is provided with a control module, a data processing module and a positioning module, and the control box 2 is electrically connected with the system server through a data optical cable;

[0021] The elastic ring 1 is sleeved on the drainage pipe, a locking bolt 3 is arranged on the top of the elastic ring 1, the control box 2 is also arranged on the top of the elastic ring 1, and the locking bolt 3 sequentially controls the control box 2 and the elastic ring 1 downwards, and the bottom of the locking bolt 3 abuts against the outer wall of the drainage pipe downwards, and the elastic ring 1 is fixed through the friction between the bottom of the locking bolt 3 and the outer wall of the drainage pipe;

[0022] Ultrasonic flow sensors 4 are symmetrically arranged on the top of the elastic ring 1, the main body of the elastic ring 1 is made of elastic metal or elastic plastic, and an opening is reserved at the bottom of the elastic ring 1, so that the elastic ring 1 can be directly clamped on the drainage pipe from top to bottom, the convenience and efficiency of installation are greatly improved, and the monitoring device can be quickly deployed without complex pipeline modification or disassembly operation;

[0023] Capacitive liquid level sensors 5 are symmetrically embedded on the two sides of the elastic ring 1, and one end of the capacitive liquid level sensor 5 extends to the inner side of the elastic ring 1;

[0024] The locking bolt 3 on the top is used to tightly fix the drainage pipe, when the locking bolt 3 is screwed, the bottom thereof sequentially passes through the control box 2 downwards and abuts against the outer wall of the drainage pipe, enough fastening force is generated by relying on the friction force between the bottom of the bolt and the pipe wall, the position of the elastic ring 1 on the drainage pipe is stable, even if the pipeline vibrates, the elastic ring 1 will not easily fall off, so that various sensors installed thereon can work stably and accurately;

[0025] Ultrasonic flow sensors 4 are symmetrically arranged on the top of the elastic ring 1, and the propagation characteristics of ultrasonic waves in fluid are used to accurately measure the flow rate and flow information of water flow in the drainage pipe; through real-time monitoring and analysis of the flow data, the drainage capacity and flow variation trend of the drainage pipeline can be grasped in time, and whether there is blockage, leakage or flow anomaly can be effectively judged;

[0026] The elastic ring 1 is symmetrically embedded with a capacitive liquid level sensor 5 on both sides, one end of which extends to the inner side of the elastic ring 1 to detect the change of liquid in the drain pipe in a non-contact manner; the capacitive liquid level sensor 5 can accurately detect the height change of the liquid level in the drain pipe based on the change principle of the dielectric constant of the liquid, and provide key data support for the liquid level control and early warning of the drainage system;

[0027] The control module (single-chip microcomputer or control chip) serves as the core control unit of the entire monitoring device, responsible for coordinating the working time sequence of various sensors, data acquisition frequency, and communication instruction interaction with the system server, etc.; the data processing module performs real-time processing and analysis on the raw data collected by the ultrasonic flow sensor 4 and the capacitive liquid level sensor 5, such as data filtering, signal amplification, error correction, etc., converts the processed data into a standard format that can be directly used by the system server, and also performs preliminary data mining and abnormality judgment according to the preset algorithm, such as flow mutation detection and liquid level overrun early warning, to improve the response speed and reliability of the system;

[0028] The positioning module adopts GPS / Beidou positioning or indoor positioning technology (estimates the distance by measuring the source and signal strength of the signal, and then determines the position using the distance information of multiple signal sources), which can accurately obtain the installation position information of the monitoring device in the tunnel, and quickly locate the fault point when an abnormal situation occurs, facilitating maintenance personnel to arrive at the scene in time for processing;

[0029] The control box 2 establishes stable and high-speed electrical connection with the system server through data optical cable; the data optical cable has the advantages of high transmission rate, strong anti-interference ability, and small signal attenuation, etc., which can ensure the real-time and accurate transmission of a large amount of monitoring data, effectively avoid data loss or errors caused by signal interference or transmission interruption, and provide a solid data foundation for the system server to conduct comprehensive and in-depth data analysis and decision-making;

[0030] Working principle: the working principle of the ultrasonic flow sensor 4 is based on the propagation characteristics of ultrasonic waves in fluid; in the drain pipe, the ultrasonic flow sensor 4 will emit ultrasonic signals, which propagate in the fluid; due to the flow of the fluid, the speed of the ultrasonic signals propagating downstream and upstream will differ;

[0031] According to this time difference or frequency difference, combined with the pre-set parameters such as the inner diameter of the pipe inside the sensor, and using the flow calculation algorithm, the flow rate of the water in the drain pipe can be accurately calculated; and through the product of the flow rate and the cross-sectional area of the pipe, the drainage flow data can be obtained; these data will be transmitted in real time to the data processing module of the control box 2;

[0032] The capacitive liquid level sensor 5 (using a non-contact capacitive sensor) mainly utilizes the principle that the dielectric constant of liquid is different from that of air; when the liquid level changes, the capacitance value of the contact part of the capacitive liquid level sensor 5 with the pipeline will change accordingly; the sensor converts the change of the capacitance value into an electrical signal change, and then transmits it to the data processing module of the control box 2, and the data processing module converts the electrical signal into actual liquid level height data according to the pre-calibrated capacitance-liquid level relationship curve; at the same time, the capacitive liquid level sensor 5 is symmetrically distributed on both sides, and different liquid levels in the pipeline can be monitored in real time according to the detection data of the capacitive liquid level sensor 5;

[0033] In the data processing module of the control box 2, the collected flow and liquid level data are first pre-processed, which includes data filtering to remove noise signals caused by sensor fluctuations, external electromagnetic interference and other factors, making the data smoother and more accurate; then signal amplification is performed to ensure that the data signal strength meets the subsequent transmission requirements, and the data processing module also performs error correction, using built-in calibration parameters and algorithms to correct possible system errors of the sensor and improve data quality;

[0034] The processed data will be packaged according to the predetermined data format, and the control module will add the location information of the device to the data packet; these location information is provided by the positioning module in the control box 2, which can accurately determine the installation position of the monitoring device in the tunnel;

[0035] The control box 2 transmits the processed data to the system server through the data optical cable; the data optical cable uses optical signals as carriers and has a very high transmission rate, which can quickly send a large amount of data to the system server; at the same time, the optical cable has strong anti-interference ability and can effectively avoid the interference of complex electromagnetic environment, mechanical vibration and other factors in the tunnel on data transmission, ensuring the accuracy and integrity of data transmission;

[0036] After the system server receives data from each drainage pipeline monitoring device, it will store these data in the database; the database can store historical data for a long time, which is convenient for subsequent query and comparative analysis;

[0037] The customized software in the system server further analyzes the real-time data, for example, drawing a curve of the drainage flow rate changing with time, observing the fluctuation of the flow rate, drawing a distribution map of the liquid level height at different positions of the tunnel, analyzing the spatial variation trend of the liquid level, etc. Through these analyses, the running state of the tunnel drainage system can be comprehensively understood, such as whether the drainage is smooth, whether there is local water accumulation, etc. The system server is pre-provided with early warning thresholds and rules. For example, when the drainage flow rate at a certain position exceeds a certain proportion of the designed maximum flow rate, or the liquid level height exceeds the safe liquid level of the pipeline, the early warning mechanism is triggered, the monitoring and early warning purposes are achieved, and the remote monitoring purposes are achieved.

[0038] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model, therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, the scope of the utility model is defined by the appended claims instead of the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model, any figure reference in the claims should not be regarded as limiting the claims involved.

[0039] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principle and spirit of the utility model, the scope of the utility model is defined by the appended claims and its equivalents.

Claims

1. A tunnel drainage system monitoring platform, comprising a system server and a drainage pipe monitoring device, wherein the drainage pipe monitoring device comprises an elastic ring (1), a control box (2), and a data acquisition device, characterized in that: The control box (2) is equipped with a control module, a data processing module and a positioning module. The control box (2) is electrically connected to the system server through a data optical cable, and the system server receives and processes the collected monitoring data. The elastic ring (1) is symmetrically equipped with ultrasonic flow sensors (4) on the front and back sides of the top. The main body of the elastic ring (1) is elastic metal or elastic plastic, and a notch is reserved at the bottom of the elastic ring (1). When in use, the elastic ring (1) can be directly snapped onto the drain pipe from top to bottom, which improves the convenience of installation. Capacitive liquid level sensors (5) are symmetrically embedded on both sides of the elastic ring (1). One end of the capacitive liquid level sensor (5) extends to the inner side of the elastic ring (1).

2. The tunnel drainage system monitoring platform according to claim 1, characterized in that: The elastic ring (1) is fitted onto the drain pipe, and a locking bolt (3) is installed on the top of the elastic ring (1). The control box (2) is also located on the top of the elastic ring (1).

3. The tunnel drainage system monitoring platform according to claim 2, characterized in that: The locking bolt (3) controls the box (2) and the elastic ring (1) downwards in sequence. The bottom of the locking bolt (3) abuts against the outer wall of the drain pipe, and the elastic ring (1) is fixed by the friction between the bottom of the locking bolt (3) and the outer wall of the drain pipe.

4. The tunnel drainage system monitoring platform according to claim 1, characterized in that: The capacitive liquid level sensor (5) is a non-contact capacitive sensor, and multiple sensors are symmetrically distributed along both sides of the elastic ring (1). The changes in liquid level in the drain pipe are detected by the capacitive liquid level sensor (5) at different positions.

Images