A wireless multi-parameter monitoring system for buried pipelines

Abstract

The present invention relates to the technical field of underground pipeline network monitoring, and particularly to a wireless multi-parameter monitoring system for buried pipelines, which includes a multi-parameter sensor module, a signal control and processing module, an antenna and power supply module, and a background monitoring device; the multi-parameter sensor module and the signal control and processing module are integrated on the same substrate, and the multi-parameter sensor module includes an omnidirectional inclination sensor, an acoustic leakage sensor, a vibration sensor, a temperature sensor and a built-in battery encapsulated together, the antenna and power supply module includes an antenna and an external battery, the external battery is used to supply power to the multi-parameter sensor module and the antenna, and the antenna is connected to the signal control and processing module to amplify the processed monitoring data and output it to the background monitoring device. This wireless multi-parameter monitoring system can simultaneously monitor leakage, inclination, vibration, and temperature.

Description

Technical Field

[0001] The present invention belongs to the technical field of underground pipeline network monitoring, and particularly relates to a wireless multi-parameter monitoring system for buried pipelines. Background Art

[0002] Urban underground pipeline networks are an important part of the urban lifeline system, the material basis for the survival and development of cities, and an important condition for ensuring the normal operation and healthy development of cities. With the rapid development of urbanization in China, the scale of urban underground pipeline networks is also growing larger. At the same time, due to reasons such as pipeline aging, third-party construction, and load effects (force, temperature), accidents such as pipeline leakage and pipe bursting are increasing, resulting in serious economic losses and waste of resources. However, urban underground pipeline network monitoring has the characteristics of a large number of monitoring parameters, a large number of measuring points, and a long measurement cycle. Using existing monitoring systems has the problem of high costs for sensor layout and installation. Summary of the Invention

[0003] Based on this, aiming at the deficiencies of the prior art, the present invention discloses a wireless multi-parameter monitoring system for buried pipelines to overcome the problem of high costs for sensor layout and installation in the urban water supply pipeline network monitoring system in the prior art.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A wireless multi-parameter monitoring system for buried pipelines, comprising a multi-parameter sensor module, a signal control and processing module, an antenna and power supply module, and a background monitoring device;

[0006] The multi-parameter sensor module and the signal control and processing module are integrated on the same substrate, and the multi-parameter sensor module includes an omnidirectional inclination sensor, an acoustic leakage sensor, a vibration sensor, a temperature sensor, and a built-in battery encapsulated together. The omnidirectional inclination sensor is used to monitor the three-dimensional space inclination of the target pipeline. The acoustic leakage sensor monitors the leakage noise data of the target pipeline through a listening device. The vibration sensor monitors the fatigue load times of the target pipeline by measuring the vibration data of the ground. The temperature sensor is used to monitor the environmental temperature change of the target pipeline. The built-in battery is used to supply power to the omnidirectional inclination sensor, the acoustic leakage sensor, the vibration sensor, and the temperature sensor. The signal control and processing module is used to process the monitoring data obtained by each sensor in the multi-parameter sensor module to obtain the processed monitoring data;

[0007] The antenna and power supply module includes an antenna and an external battery. The external battery is used to supply power to the multi-parameter sensor module and the antenna. The antenna is connected to the signal control and processing module to amplify the processed monitoring data and output it to the background monitoring device.

[0008] In some embodiments, the antenna and power supply module is disposed in an installation well, and the external battery is replaceable. The installation position of the antenna is no more than 10 cm from the ground, so that the antenna has relatively strong signal transmission and reception capabilities.

[0009] In some embodiments, each sensor in the multi-parameter sensor module switches between a monitoring state and a sleep state according to a set switching period;

[0010] The signal control and processing module includes a signal processing unit, a data storage unit, a wireless receiving and transmitting unit, a power controller, and a trigger controller;

[0011] The signal processing unit is respectively connected to the omnidirectional inclination sensor, the acoustic leakage sensor, the vibration sensor, and the temperature sensor to process the data monitored by each sensor to obtain processed monitoring data;

[0012] The data storage unit is used to store the processed monitoring data;

[0013] The wireless receiving and transmitting unit is used to transmit the processed monitoring data to the antenna;

[0014] The power controller is respectively connected to the multi-parameter sensor module, the built-in battery, and the external battery to schedule and allocate the energy provided by the built-in battery and the external battery;

[0015] The trigger controller includes a vibration signal acquisition unit, a judgment unit, and a control unit. The vibration signal acquisition unit is used to collect vibration signal data in real time. The judgment unit is used to judge whether the vibration signal data is greater than a preset vibration threshold. If so, the control unit controls the omnidirectional inclination sensor, the acoustic leakage sensor, the vibration sensor, and the temperature sensor to enter the monitoring state. If not, no processing is performed.

[0016] In some embodiments, the substrate integrated with the multi-parameter sensor module and the signal control and processing module is disposed in a box body.

[0017] In some embodiments, the box body is a cylindrical box body, and the diameter of the cylindrical box body is 40 - 60 mm.

[0018] In some of these embodiments, the detection head of the acoustic leakage sensor is in contact with the inner bottom of the box body, and the detection head of the vibration sensor is in contact with the inner top of the box body.

[0019] In some of these embodiments, the box body is directly mounted on the target pipeline.

[0020] In some of these embodiments, there is a gap between the box body and the target pipeline, and the bottom of the box body is connected to the target pipeline through a detection push rod.

[0021] In some of these embodiments, the signal control and processing module is communicatively connected to the antenna via wireless 4G / 5G / NB-IoT signals, and the multi-parameter sensor module is connected to the external battery through a connecting wire.

[0022] In some of these embodiments, the background monitoring device includes a verification module, and the verification module is used to verify the data monitored by the omnidirectional inclination sensor according to the vibration data monitored by the vibration sensor.

[0023] Compared with the prior art, the present invention has at least one of the following advantages or beneficial effects:

[0024] First, the wireless multi-parameter monitoring system for buried pipelines disclosed by the present invention integrates an omnidirectional inclination sensor, an acoustic leakage sensor, a vibration sensor, a temperature sensor, and an internal battery into one package, forming a single sensing fulcrum that synthesizes multiple parameters, realizing the simultaneous measurement of multiple parameters such as leakage, inclination, vibration, and temperature at one measurement point. Thus, the monitoring system is optimized, the stability and reliability of the system are improved, the installation cost of multi-parameter monitoring is reduced, and it has the advantages of good durability, high sensitivity, convenient processing, strong adaptability to the underground environment, and the ability to construct a long-term monitoring network.

[0025] Second, the wireless multi-parameter monitoring system for buried pipelines disclosed by the present invention uses wireless 4G / 5G / NB-IoT signal transmission technology to simultaneously monitor leakage, inclination, vibration, and temperature, making full use of the convenience of wireless transmission, and having the advantages of a compact structure and timely transmission.

[0026] Third, the wireless multi-parameter monitoring system for buried pipelines disclosed by the present invention can ensure the operation of the multi-parameter sensor module by arranging an internal battery and a replaceable external battery at the same time, thereby avoiding the loss of transmission signals caused by power failure.

[0027] IV. The wireless multi-parameter monitoring system for buried pipelines disclosed in the present invention can collect vibration signal data in real time by setting a trigger controller for a vibration acquisition unit, a judgment unit, and a control unit in the signal control and processing module. When it is judged that the vibration signal data is greater than a preset vibration threshold, the omnidirectional inclination sensor, the acoustic leakage sensor, the vibration sensor, and the temperature sensor are controlled to enter the monitoring state in a timely manner, so that the leakage, inclination, vibration, and temperature of the target pipeline can be monitored in a timely manner when the ground vibration amplitude is large. Description of the Drawings

[0028] By reading the following detailed description of the non-limiting embodiments with reference to the accompanying drawings, the present invention and its features, shape, and advantages will become more obvious. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and the emphasis is on showing the gist of the present invention.

[0029] Figure 1 It is a schematic structural diagram of the wireless multi-parameter monitoring system for buried pipelines in the embodiment of the present invention.

[0030] Among them, 1 is the target pipeline; 2 is the box body; 31 is the acoustic leakage sensor; 32 is the omnidirectional inclination sensor; 33 is the temperature sensor; 34 is the built-in battery; 35 is the vibration sensor; 4 is the signal control and processing module; 5 is the installation well; 6 is the external battery; 7 is the antenna. Detailed Embodiment

[0031] With the complication of the working environment of sensors and the improvement of people's expectations for monitoring technology, the standard of functional requirements for sensors is also constantly increasing. Under the background of huge demand and high-quality performance requirements, multi-parameter sensors have become an urgent need in the field of urban water supply pipeline monitoring. The application of multi-parameter sensors, on the one hand, can minimize the cost of measuring multiple parameters using a single sensor; on the other hand, it can endow the sensor with new functions to adapt to the increasingly complex sensing environment; more importantly, multi-parameter sensors can optimize the simultaneous monitoring of different sensing parameters by the monitoring system and reduce the cost of sensor layout and installation.

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but it is not limited to the present invention.

[0033] As Figure 1 shown, the present invention discloses a wireless multi-parameter monitoring system for buried pipelines. Specifically, the wireless multi-parameter monitoring system includes a multi-parameter sensor module, a signal control and processing module 4, an antenna and a power supply module, and a background monitoring device.

[0034] The above multi-parameter sensor module and the signal control and processing module 4 are integrated on the same substrate. The multi-parameter sensor module includes an omnidirectional inclination sensor 32, an acoustic leakage sensor 31, a vibration sensor 35, a temperature sensor 33, and a built-in battery 34, which are packaged together. The omnidirectional inclination sensor 32 is used to monitor the three-dimensional spatial inclination of the target pipeline 1 (i.e., the buried pipeline to be monitored, generally a water supply pipeline). Specifically, the omnidirectional inclination sensor 32 establishes three-axis coordinates and calculates the three-way inclination change by measuring the three-way acceleration to achieve the purpose of monitoring the deformation of the target pipeline 1. The acoustic leakage sensor 31 monitors the leakage noise data of the target pipeline 1 through a listening device to achieve the purpose of monitoring the leakage of the target pipeline 1. The vibration sensor 35 monitors the fatigue load times of the target pipeline 1 by measuring the vibration data of the ground. Specifically, the vibration sensor 35 measures the ground vibration data caused by vehicle loads, construction loads, etc. to achieve the purpose of monitoring the fatigue load cycle times of the target pipeline 1. The temperature sensor 33 is used to monitor the ambient temperature change of the target pipeline 1, and the ambient temperature change data monitored by the temperature sensor 33 can perform temperature compensation on the data monitored by the omnidirectional inclination sensor 32, the acoustic leakage sensor 31, and the vibration sensor 35. That is, the temperature sensor 33 is respectively connected to the omnidirectional inclination sensor 32, the acoustic leakage sensor 31, and the vibration sensor 35 to transmit the monitored ambient temperature change data to the omnidirectional inclination sensor 32, the acoustic leakage sensor 31, and the vibration sensor 35 to perform temperature compensation on the data monitored by the omnidirectional inclination sensor 32, the acoustic leakage sensor 31, and the vibration sensor 35, so that the monitored data output by the omnidirectional inclination sensor 32, the acoustic leakage sensor 31, and the vibration sensor 35 is more accurate. The built-in battery 34 is used to supply power to the omnidirectional inclination sensor 32, the acoustic leakage sensor 31, the vibration sensor 35, and the temperature sensor 33. Specifically, the volume of one built-in battery 34 is , and the number of built-in batteries 34 can be selected according to the installation requirements. Using this multi-parameter sensor module, the three-way inclination, acoustic leakage, vibration settlement, and ambient temperature change of the target pipeline 1 can be simultaneously monitored at one measurement point, realizing a single sensing support point to integrate multiple parameters, thus optimizing the structure of the monitoring system, improving the reliability of the system, and reducing the installation cost of multi-parameter monitoring. The above signal control and processing module 4 is used to process the monitoring data obtained by each sensor in the multi-parameter sensor module to obtain the processed monitoring data.

[0035] The above-mentioned antenna and power supply module are arranged in an installation well 5 opened on the ground surface. The antenna and power supply module includes an antenna 7 and an external battery 6. The external battery 6 is used to supply power to the multi-parameter sensor module and the antenna 7. Relative to the built-in battery 34, the external battery 6 is preferentially used to supply power to the multi-parameter sensor module. In this embodiment, the multi-parameter sensor module can prevent the external battery 6 from causing sensor power failure due to accidents (such as the external battery 6 running out of power) by arranging both the built-in battery 34 located inside the multi-parameter sensor module and the external battery 6 located outside the multi-parameter sensor module, so as to ensure the power consumption of the multi-parameter sensor module, thereby ensuring the signal transmission of the multi-parameter sensor module, avoiding the loss of transmitted signals caused by power failure, and the external battery 6 is replaceable to ensure the stable transmission of the antenna 7 signal and the stable power supply of the multi-parameter sensor module. The volume of one external battery 6 is , and the installation well 5 can be used to replace the battery. At the same time, reminder words are set on the upper surface of the installation well 5 to avoid traffic accidents and construction damage; the antenna 7 is used to enhance 4G / 5G / NB-IoT signals. The installation position of the antenna 7 is no more than 10 cm from the ground, so that the antenna 7 has relatively strong signal transmitting and receiving capabilities; the antenna 7 is connected to the signal control and processing module 4 to amplify the processed monitoring data and output it to the background monitoring device.

[0036] The above-mentioned background monitoring device includes a verification module, which is used to verify the data monitored by the omnidirectional inclination sensor 32 according to the vibration data monitored by the vibration sensor 35; that is, the vibration sensor 35 can be used as a verification of the omnidirectional inclination sensor 32. This is because when the pipeline undergoes a large inclination change, it often suffers from large vibrations, thereby improving the monitoring accuracy rate and helping to reduce false monitoring data.

[0037] Specifically, each sensor in the above multi-parameter sensor module switches between the monitoring state and the sleep state according to a set switching period. When in the sleep state, the sensor is in a low-power mode and consumes less power. The signal control and processing module 4 includes a signal processing unit, a data storage unit, a wireless receiving and transmitting unit, a power controller, and a trigger controller. The signal processing unit is respectively connected to the omnidirectional inclination sensor 32, the acoustic leakage sensor 31, the vibration sensor 35, and the temperature sensor 33 to process the data monitored by each sensor to obtain the processed monitoring data and transmit the processed monitoring data to the data storage unit, the wireless receiving and transmitting unit, and the trigger controller respectively. The data storage unit is used to store the processed monitoring data. The wireless receiving and transmitting unit is used to transmit the processed monitoring data to the antenna 7. The power controller is respectively connected to the multi-parameter sensor module, the built-in battery 34, and the external battery to schedule and allocate the energy provided by the built-in battery 34 and the external battery. Since the external battery 6 is convenient to replace, the power controller preferentially allocates the external battery 6 to supply power to each sensor in the multi-parameter sensor module and each unit in the signal control and processing module 4 to ensure the normal operation of each unit. The trigger controller includes a vibration signal acquisition unit, a judgment unit, and a control unit. The vibration signal acquisition unit is used to collect vibration signal data in real time. The judgment unit is used to judge whether the vibration signal data is greater than a preset vibration threshold. If so, the control unit controls the omnidirectional inclination sensor 32, the acoustic leakage sensor 31, the vibration sensor 35, and the temperature sensor 33 to enter the monitoring state for monitoring. If not, no processing is performed, that is, no signal is sent to the control unit, so that the multi-parameter sensor module can timely monitor the changes at the measurement point while saving power.

[0038] In a specific embodiment of the present invention, the substrate integrated with the multi-parameter sensor module and the signal control and processing module 4 is disposed in a cylindrical box 2; and the diameter of the cylindrical box 2 is 40 - 60 mm (such as 40 mm, 50 mm, 55 mm or 60 mm, etc.). The cylindrical box 2 is small in size, and the installation method can be drilling installation, which is simple and avoids large-area construction, thus greatly reducing the construction cost. Moreover, the detection head of the acoustic leakage sensor 31 is in contact with the inner bottom of the cylindrical box 2 to monitor the leakage of the target pipeline 1 through the bottom plate of the cylindrical box 2, and the detection head of the vibration sensor 35 is in contact with the inner top of the cylindrical box 2 to monitor the ground vibration caused by vehicle loads, construction loads, etc. through the top plate of the cylindrical box 2. When the burial depth of the target pipeline 1 is small, the cylindrical box 2 can be directly installed on the target pipeline 1, that is, the bottom plate of the cylindrical box 2 is in contact with the target pipeline 1, so that the detection head of the acoustic leakage sensor 31 can directly form physical contact with the target pipeline 1 through the bottom plate of the cylindrical box 2, thereby being able to detect the leakage of the target pipeline 1; preferably, the lower surface of the bottom plate of the cylindrical box 2 has a shape adapted to the upper surface of the target pipeline 1 (for example, when the target pipeline 1 is circular, the lower surface of the bottom plate of the cylindrical box 2 is arc-shaped), so that the bottom plate of the cylindrical box 2 can be in close contact with the target pipeline 1 and is convenient for installation. Of course, when the burial depth of the target pipeline 1 is large, there can also be a gap between the installation position of the cylindrical box 2 and the target pipeline 1; specifically, the cylindrical box 2 is installed in the soil layer above the target pipeline 1 and has a certain gap with the target pipeline 1. At this time, the acoustic leakage sensor 31 of the multi-parameter sensor module is connected to the target pipeline 1 through a detection rod; that is, the detection head of the acoustic leakage sensor 31 forms physical contact with the target pipeline 1 through the cylindrical box 2 and the detection rod, thereby being able to monitor the leakage of the target pipeline 1.

[0039] In a specific embodiment of the present invention, the above-mentioned signal control and processing module 4 is wirelessly communicatively connected to the antenna 7 via 4G / 5G / NB-IoT signals, and the above-mentioned multi-parameter sensor module is connected to an external battery 6 through a connecting wire.

[0040] Those skilled in the art should understand that those skilled in the art can implement variations in combination with the prior art and the above embodiments, which will not be elaborated here. Such variations do not affect the essence of the present invention and will not be elaborated here.

[0041] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and the devices and structures not described in detail therein should be understood to be implemented in a common manner in the art; any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above, or modify it into an equivalent embodiment with equivalent changes, which does not affect the essence of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A wireless multi-parameter monitoring system for buried pipelines, characterized in that: It includes a multi-parameter sensor module, a signal control and processing module, an antenna and power supply module, and a background monitoring device; The multi-parameter sensor module and the signal control and processing module are integrated on the same substrate, and the multi-parameter sensor module includes an omnidirectional tilt sensor, an acoustic leakage sensor, a vibration sensor, a temperature sensor and a built-in battery that are packaged together. The omnidirectional tilt sensor is used to monitor the three-dimensional spatial tilt of the target pipeline. The acoustic leakage sensor monitors the leakage noise data of the target pipeline through a listening device. The vibration sensor monitors the fatigue load times of the target pipeline by measuring the vibration data of the ground; the temperature sensor is used to monitor the ambient temperature changes of the target pipeline; the built-in battery is used to power the omnidirectional tilt sensor, the acoustic leakage sensor, the vibration sensor and the temperature sensor; the signal control and processing module is used to obtain the data of each sensor in the multi-parameter sensor module. The acquired monitoring data is processed to obtain processed monitoring data; the temperature sensor is respectively connected with the omnidirectional tilt sensor, the acoustic leakage sensor, and the vibration sensor to transmit the monitored ambient temperature change data to the omnidirectional tilt sensor, the acoustic leakage sensor, and the vibration sensor to perform temperature compensation on the data monitored by the omnidirectional tilt sensor, the acoustic leakage sensor, and the vibration sensor, and each sensor in the multi-parameter sensor module switches between the monitoring state and the dormant state according to a set switching cycle; the antenna and power supply module includes an antenna and an external battery, the external battery is used to supply power to the multi-parameter sensor module and the antenna, and the antenna is connected with the signal control and processing module to amplify the processed monitoring data and output it to the background monitoring device; The signal control and processing module includes a signal processing unit, a data storage unit, a wireless receiving and transmitting unit, a power controller and a trigger controller; the signal processing unit is respectively connected to the omnidirectional tilt sensor, the acoustic leakage sensor, the vibration sensor and the temperature sensor to process the data monitored by each sensor to obtain processed monitoring data; the data storage unit is used to store the processed monitoring data; the wireless receiving and transmitting unit is used to transmit the processed monitoring data to the antenna; The power controller is respectively connected to the multi-parameter sensor module, the built-in battery and the external battery to schedule and allocate the energy provided by the built-in battery and the external battery, and preferentially allocates the external battery to power each sensor and the signal control and processing module in the multi-parameter sensor module; the trigger controller includes a vibration signal acquisition unit, a judgment unit and a control unit, the vibration signal acquisition unit is used to collect vibration signal data in real time, and the judgment unit is used to judge whether the vibration signal data is greater than a preset vibration threshold. If so, the control unit controls the omnidirectional tilt sensor, the acoustic leakage sensor, the vibration sensor and the temperature sensor to enter a monitoring state, if not, no processing is performed; The substrate integrated with the multi-parameter sensor module and the signal control and processing module is arranged in a box body, the detection head of the acoustic leakage sensor contacts the inner side of the bottom of the box body, the detection head of the vibration sensor contacts the inner side of the top of the box body, the box body is installed outside the target pipe with a gap between the box body and the target pipe, and the bottom of the box body is connected to the target pipe through a detection mandrel; The background monitoring device comprises a verification module, and the verification module is used to verify the data monitored by the omnidirectional tilt sensor according to the vibration data monitored by the vibration sensor.

2. The wireless multi-parameter monitoring system for buried pipelines according to claim 1, characterized in that: The antenna and the power supply module are arranged in an installation well, and the external battery is replaceable. The installation position of the antenna is no more than 10 cm from the ground.

3. The wireless multi-parameter monitoring system for buried pipelines according to claim 1, characterized in that: The box body is a cylindrical box body, and the diameter of the cylindrical box body is 40-60 mm.

4. The wireless multi-parameter monitoring system for buried pipelines according to claim 1, characterized in that: The signal control and processing module is connected to the antenna using wireless 4G / 5G / NB-IoT signal communication, and the multi-parameter sensor module is connected to the external battery via a connecting line.

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