CN216693086U - Monitoring system for leakage of water supply pipeline - Google Patents
Monitoring system for leakage of water supply pipeline Download PDFInfo
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- CN216693086U CN216693086U CN202123443196.6U CN202123443196U CN216693086U CN 216693086 U CN216693086 U CN 216693086U CN 202123443196 U CN202123443196 U CN 202123443196U CN 216693086 U CN216693086 U CN 216693086U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/15—Leakage reduction or detection in water storage or distribution
Abstract
The utility model discloses a monitoring system for leakage of a water supply pipeline. Wherein, this monitoring system includes: the noise monitoring terminals are respectively arranged at a plurality of different monitoring positions of a water supply pipeline and are used for acquiring current vibration sound signals of each monitoring position; and the inspection host is connected with the noise monitoring terminals and used for determining that the water supply pipeline has pipeline leakage at the monitoring position corresponding to the current vibration sound signal when the current vibration sound signal is different from the normal vibration sound signal. The pipeline leakage monitoring method solves the technical problems that in the prior art, a pipeline leakage monitoring method adopts an artificial listening inspection mode, so that a large amount of manpower and material resources are consumed, and the monitoring effect is poor.
Description
Technical Field
The utility model relates to the technical field of leakage monitoring, in particular to a monitoring system for leakage of a water supply pipeline.
Background
In the prior art, most of water supply companies have long-term pipe network laying, and due to poor management, old facilities, slow improvement of technical level and the like, the leakage rate of the water supply network is high, the loss and waste of water resources are increased, and the water supply cost of tap water companies is increased to a great extent.
At present, for the problem of leakage monitoring and positioning of water supply pipelines, water supply companies generally adopt a traditional leakage monitoring method of manual listening inspection, and monitor pipeline leakage acoustic signals transmitted from the underground along a water supply pipeline by means of a leakage listening instrument with a sound amplification function, so as to judge whether the pipeline leaks. Although the method has some effects, the method mainly depends on the working staff with abundant working experience to work at night, so that a large amount of manpower and material resources are consumed, and the leakage detection effect is not ideal.
In view of the above problems, no effective solution has been proposed.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a monitoring system for water supply pipeline leakage, which at least solves the technical problems that in the prior art, a pipeline leakage monitoring method adopts an artificial listening inspection mode, a large amount of manpower and material resources are consumed, and the monitoring effect is poor.
According to an aspect of an embodiment of the present invention, there is provided a system for monitoring leakage of a water supply pipeline, including: the noise monitoring terminals are respectively arranged at a plurality of different monitoring positions of a water supply pipeline and are used for acquiring current vibration sound signals of each monitoring position; and the inspection host is connected with the noise monitoring terminals and used for determining that the water supply pipeline has pipeline leakage at the monitoring position corresponding to the current vibration sound signal when the current vibration sound signal is different from the normal vibration sound signal.
Optionally, the noise monitoring terminal includes: the signal amplification acquisition circuit is used for acquiring the current vibration sound signal, wherein the signal amplification acquisition circuit comprises: the device comprises a pre-amplification filter circuit, a secondary amplification circuit and a dual-channel amplification filter circuit; the first wireless communication module is connected with the signal amplification and acquisition circuit and the inspection host and is used for sending the current vibration sound signal to the inspection host; and the data storage chip is connected with the signal amplification and acquisition circuit and is used for storing the current vibration sound signal.
Optionally, the noise monitoring terminal is a noise collecting sensor, and further includes: the power supply system is used for supplying power to the noise monitoring terminal; the single chip microcomputer is connected with the data storage chip, the signal amplification and acquisition circuit and the first wireless communication module, and is used for switching from a low-power-consumption operation mode to a signal acquisition mode under a preset condition and sequentially starting the signal amplification and acquisition circuit, the first wireless communication module and a power supply of the data storage chip under the signal acquisition mode so as to finish the acquisition and storage of the current vibration sound signal; wherein the predetermined condition is at least one of the following conditions: the set monitoring time is reached, a monitoring command is received, and a monitoring switch is triggered.
Optionally, in the pre-amplification filter circuit, the port 10 of the U3C bandpass filter is connected to a first end of a resistor 14, and a second end of the resistor 14 is connected to a power supply system; the port 9 of the U3C band-pass filter is connected to the first ends of the capacitor 7, the capacitor 9 and the resistor 18, respectively; the second end of the capacitor 7 is connected with the input end of the pre-amplification filter circuit; the second end of the resistor 18 is connected to the first ends of the resistors 20 and 21, respectively; a second end of the resistor 21 is connected to the power supply system; the U3C band pass filter has a port 8 connected to the capacitor 9, the resistor 20, and the resistor 16.
Optionally, in the secondary amplifying circuit, the port 12 of the U3D amplifier is connected to the first ends of the resistor 13, the resistor 15 and the capacitor 8; the second end of the capacitor 8 is grounded; the port 13 of the U3D amplifier is connected with one end of a resistor 12, a resistor 17, a resistor 19 and a capacitor 10; the second ends of the resistor 12 and the resistor 13 are connected with the power supply system; the second ends of the resistor 15 and the resistor 17 are connected with the first end of the capacitor 5; the terminal 14 of the U3D amplifier is connected to the resistor 19, the capacitor 10, and the capacitor 6.
Optionally, the dual-channel amplifying and filtering circuit includes: a low-gain low-pass filter circuit in which a port 7 of the U3B amplifier is connected to one end of the resistor 3; the port 6 of the U3B amplifier is connected with the first ends of the resistor 2, the resistor 7, the resistor 10 and the capacitor 3; the second ends of the resistor 2 and the resistor 3 are connected with the power supply system; the port 5 of the U3B amplifier is connected to the resistor 10, the capacitor 3, and the resistor 6.
Optionally, the dual-channel amplifying and filtering circuit further includes: a high-gain low-pass filter circuit in which a resistor 5 is connected to a port 3 of a U3A amplifier; the port 2 of the U3A amplifier is connected with the first ends of the resistor 4, the resistor 8, the resistor 11 and the capacitor 4; the resistor 4 and the resistor 5 are connected with the power supply system; the port 4 of the U3A amplifier is connected with the first ends of the resistor 1, the capacitor 1 and the capacitor 2; the second end of the resistor 1 is connected with the power supply system; the second ends of the capacitor 1 and the capacitor 2 are grounded; port 8 of the U3A amplifier is grounded; the resistor 11, the capacitor 4, and the resistor 9 are connected to the port 1 of the U3A amplifier.
Optionally, the noise monitoring terminal is a noise collection sensor.
In the embodiment of the utility model, through a plurality of noise monitoring terminals, each noise monitoring terminal is respectively arranged at a plurality of different monitoring positions of a water supply pipeline and is used for collecting the current vibration sound signal of each monitoring position; the main frame of patrolling and examining, be connected with a plurality of above-mentioned noise monitoring terminal, be used for when above-mentioned current vibration acoustic signal is different with normal vibration acoustic signal, confirm that above-mentioned water supply pipe has the pipeline leakage in the above-mentioned monitoring position that corresponds with above-mentioned current vibration acoustic signal, the purpose of automatic and quick discovery pipeline leak source has been reached, thereby realized the loss and the waste that reduce the water resource, the technological effect of water supply network leakage rate is reduced, and then the mode that pipeline leakage monitoring method adopted artifical listening to patrol and examine among the prior art has been solved, lead to consuming a large amount of manpower and material resources and the not good technical problem of monitoring effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:
FIG. 1 is a system for monitoring water supply pipeline leakage according to an embodiment of the present invention;
FIG. 2a is a schematic diagram illustrating the appearance effect of an alternative noise monitoring terminal according to an embodiment of the present invention;
fig. 2b is a schematic diagram of an appearance effect of an alternative inspection host according to an embodiment of the utility model;
FIG. 3 is a hardware schematic diagram of an alternative water supply line leak monitoring system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an alternative communication mode structure of a mobile water supply leakage monitoring device according to an embodiment of the present invention;
FIG. 5 is a schematic flow diagram of an alternative water supply loss mobile monitoring device according to an embodiment of the present invention;
fig. 6 is a schematic flow chart of an alternative polling host wake-up noise monitoring terminal according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an alternative pre-amp filter circuit according to an embodiment of the utility model;
FIG. 8 is a schematic diagram of an alternative two-stage amplifier circuit according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of an alternative low-gain low-pass filter circuit according to an embodiment of the utility model;
fig. 10 is a schematic diagram of an alternative high-gain low-pass filter circuit according to an embodiment of the utility model.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
According to an embodiment of the present invention, there is provided an embodiment of a system for monitoring leakage of a water supply pipeline, and fig. 1 is a system for monitoring leakage of a water supply pipeline according to an embodiment of the present invention, as shown in fig. 1, the system includes: a plurality of noise monitor terminal 10 and patrol and examine host computer 12, wherein:
a plurality of noise monitoring terminals 10, each of which is respectively disposed at a plurality of different monitoring positions of the water supply pipeline and is configured to collect a current vibration sound signal at each of the monitoring positions;
and an inspection host 12 connected to the plurality of noise monitoring terminals, for determining that a pipe leakage occurs in the water supply pipe at the monitoring position corresponding to the current vibration sound signal when the current vibration sound signal is different from a normal vibration sound signal.
In the embodiment of the utility model, the monitoring system for water supply pipeline leakage mainly comprises a noise monitoring terminal 10 and an inspection main machine 12, and mainly completes the collection, amplification, filtering, conversion, wireless communication and other work of noise vibration signals of underground pipelines.
In the embodiment of the utility model, the purpose of the water supply network leakage mobile monitoring system is to collect leakage noise signals and pipeline leakage vibration sound signals, and whether the pipeline leaks or not is judged by comparing the pipeline vibration sound signals in a normal state and a leakage state by the water supply network leakage mobile monitoring equipment of the water supply network leakage mobile monitoring system; the leakage noise signal is a leakage vibration sound signal generated on the pipe wall at the leakage opening under the action of water flow and pressure after the water supply pipeline leaks, and the vibration signal can be transmitted to two sides along the pipe wall and fluid.
In the embodiment of the utility model, the pipeline leakage monitoring device can be constructed according to the noise monitoring terminal 10 and the inspection host 12 of the water supply network leakage mobile monitoring system, and comprises a signal acquisition module, a communication storage module, a control module and the like.
As an optional embodiment, the signal acquisition module is responsible for acquiring, amplifying, filtering, converting and the like the pipeline leakage noise signal. The signal acquisition mainly comprises a noise acquisition circuit consisting of a piezoelectric ceramic piece and a copper pole piece, and the noise acquisition circuit is adopted to convert the pipeline vibration signal into analog quantity. The signal amplification and filtering adopts a pre-amplification filtering circuit, a secondary amplification circuit and a dual-channel amplification filtering circuit (comprising a low-gain low-pass filtering circuit and a high-gain low-pass filtering circuit) to realize the processing of three-level amplification, twice filtering and the like; the signal conversion is mainly completed by a singlechip, and the analog quantity is converted into the digital quantity.
Optionally, as shown in the appearance effect diagram of the multiple noise monitoring terminals in fig. 2a, the noise monitoring terminals are integrally cylindrical, and can be opened up and down, and a radial sealing mode is adopted, and the noise monitoring terminals are matched with screw holes to be compressed and fixed. Two adapter ports of a remote transmitting antenna 1 and a Bluetooth antenna 2 are reserved outside the noise monitoring terminal; a strong magnet structure 4 is arranged at the bottom of the noise monitoring terminal and used for adsorption and fixation of installation; and a lifting handle 3 is arranged at the upper part of the noise monitoring terminal and is used for taking, placing and carrying during installation.
Optionally, as shown in the appearance effect diagram of the inspection host shown in fig. 2b, the inspection host is integrally a square box body and can be opened up and down; an antenna switching port 5 is arranged at the upper part of the inspection host machine and used for installing an antenna; the right side of the device is provided with a USB man-machine interaction interface 7 and a switch button 6.
As an alternative embodiment, as shown in fig. 3, the hardware schematic diagram of the monitoring system for water supply pipeline leakage includes a single-chip microcomputer model MSP430FR6972, an external 32768 crystal oscillator as a clock, a built-in DC (800kHz) as a master frequency, and a reset circuit for resistance-capacitance reset according to the function and environmental requirements of the system. The noise acquisition sensor is an acquisition circuit consisting of a double piezoelectric ceramic plate and a copper pole piece; the signal amplification and acquisition circuit adopts a dual-channel amplification and filtering circuit to realize low-gain and high-gain two-path acquisition signals; the data storage adopts a 32Mbit WQ25Q32JVS memory chip, the capacity of the chip is 4M, and the noise original data can be continuously stored for more than one month; an NB-IoT wireless communication module (BC28 module) is adopted to be connected with a serial port 1 of the MSP430FR6972 singlechip; 1 section of ER34615 lithium battery is adopted for power supply (19AH and 3.6V); one path supplies power to the NB-IoT module through a CPU on-off control circuit of the processor, and the other path supplies power to a CPU system of the processor through LDO RH5RL33AA voltage stabilization to 3.3V.
In an embodiment of the present invention, the noise monitoring terminal includes: a signal amplification and collection circuit 20, configured to collect the current vibration acoustic signal, wherein the signal amplification and collection circuit includes: the device comprises a pre-amplification filter circuit, a secondary amplification circuit and a dual-channel amplification filter circuit; the first wireless communication module 22 is connected with the signal amplification and acquisition circuit and the inspection host, and is used for transmitting the current vibration sound signal to the inspection host; and the data storage chip 24 is connected with the signal amplification and acquisition circuit and is used for storing the current vibration sound signal.
As an alternative embodiment, the communication storage module is responsible for receiving, storing, and sending data, and the data storage is formed by a storage chip and used for storing the original data of the vibration signal. Above-mentioned communication storage module utilizes above-mentioned first wireless communication module after the pipeline vibration signal compression packing that will gather, includes: and the NB-IoT, LoRa, Bluetooth and other wireless communication networks complete the transmission of data between the noise monitoring equipment and the monitoring platform. The pipeline leakage monitoring equipment has three communication modes: the communication mode 1 can communicate with the inspection host machine in a Bluetooth mode through a mobile phone application program page, and the inspection host machine communicates with the pipeline leakage monitoring equipment in a LoRa communication mode; the inspection host serves as an intermediary, and the pipeline leakage monitoring equipment is controlled to work by sending a command through the mobile phone. The communication mode 2 may be setting the working time of the pipeline leakage monitoring equipment, and when the system time reaches the set time, the pipeline leakage monitoring equipment automatically acquires data. The communication mode 3 can be that the inside reed switch that sets up of pipeline leakage monitoring facilities, and the accessible strong magnetism adsorbs it to awaken up.
Optionally, the data storage of the signal communication storage module adopts a 32Mbit type WQ25Q32JVS storage chip. As shown in fig. 4, the schematic diagram of the communication mode structure of the water supply leakage mobile monitoring device, the pipeline leakage monitoring device has three wake-up modes, that is, the three communication modes include: the inspection host is communicated with the inspection host in a Bluetooth mode through a mobile phone application program page, and then communicated with the pipeline leakage monitoring equipment in an LoRa communication mode; the inspection host is used as an intermediary, and the operation of the pipeline leakage monitoring equipment is controlled by sending a command through a mobile phone; by setting the working time of the pipeline leakage monitoring equipment, when the system time reaches the set time, the pipeline leakage monitoring equipment automatically acquires data; through set up the tongue tube in pipeline leakage monitoring facilities is inside, accessible strong magnetic adsorption awakens up it.
Optionally, after the pipeline leakage monitoring device collects the data, the data is packaged and sent to the monitoring platform through the NB-IoT network.
In an embodiment of the present invention, the noise monitoring terminal is a noise collecting sensor, and further includes: a power supply system 30 for supplying power to the noise monitoring terminal; a single chip microcomputer 32 connected to the data storage chip, the signal amplification and acquisition circuit, and the first wireless communication module, and configured to switch from a low power consumption operation mode to a signal acquisition mode in a predetermined situation, and sequentially turn on power supplies of the signal amplification and acquisition circuit, the first wireless communication module, and the data storage chip in the signal acquisition mode, so as to complete acquisition and storage of the current vibration sound signal; wherein the predetermined condition is at least one of the following conditions: and reaching the set monitoring time, receiving a monitoring command and triggering a monitoring switch.
As an optional embodiment, the control module is responsible for performing total control and management on the acquisition module and the communication storage module, and includes: and the collection mode control and the communication control of the noise monitoring terminal and the inspection host (Bluetooth-LoRa-NB-IoT) are carried out. The above acquisition mode control, the pipeline noise monitoring terminal is in a low power consumption state, when any one of the following conditions: and when the system time reaches the set time, the command of the inspection host is received, the external reed switch is triggered, the low-power-consumption mode is exited, the power supply of the signal acquisition module is started to be switched on, and data acquisition is carried out after the system time is stabilized. The noise monitoring terminal is in communication control with an inspection host (Bluetooth-LoRa-NB-IoT), the inspection host is used as the host to communicate with the noise recorder through LoRa and used as a slave to communicate with a mobile phone through Bluetooth, and finally, data collected by the noise monitoring terminal is packed and compressed and then sent to a monitoring platform through NB-IoT.
Optionally, as shown in a schematic diagram of a workflow of the mobile water supply leakage monitoring device shown in fig. 5, for the acquisition mode control of the control module, the CPU is in a low power LPM3 state at ordinary times, the NB-IoT power supply, the acquisition circuit and the storage circuit are all in an off state, and the LoRa power supply is in a low power state. When any of the following: and when the system time reaches the set time, the command of the inspection host is received, the external reed switch is triggered, the low-power-consumption mode exits, the power supply of the signal acquisition module is started to be switched on, and the acquisition is carried out after the system time is stabilized. And simultaneously, turning on a power supply of the remote transmission module, and sending AT instruction data to the module. And after the data acquisition and transmission are finished, closing the power supply of the acquisition circuit part, closing the power supply of the acquisition module, opening the power supply of the storage chip, storing the data, and closing the power supply after the data acquisition and transmission are finished.
Optionally, as shown in the schematic flow diagram of fig. 6, for the communication control between the inspection host and the noise monitoring terminal, when the pipeline noise data needs to be collected on site, the inspection host may be used as a communication medium between a mobile phone application program and the noise monitoring device, and the noise monitoring device is enabled to collect the data in real time by sending a site collection command on the application program; the patrol inspection host mainly has the functions of reading data of the noise recorder by utilizing LoRa short-distance (within 100 meters) communication, connecting with a mobile phone application program by utilizing Bluetooth communication, and realizing real-time reading of noise data of the noise monitoring terminal by operating the mobile phone application program.
As an alternative embodiment, as shown in the structural diagram of the pre-amplification filter circuit shown in fig. 7, the port 10 of the U3C band-pass filter is connected to a first end of a resistor 14, and a second end of the resistor 14 is connected to the power system; the port 9 of the U3C band-pass filter is connected to the first ends of the capacitor 7, the capacitor 9 and the resistor 18, respectively; the second end of the capacitor 7 is connected with the input end of the pre-amplification filter circuit; the second end of the resistor 18 is connected to the first ends of the resistors 20 and 21, respectively; a second end of the resistor 21 is connected to the power supply system; the U3C band pass filter has a port 8 connected to the capacitor 9, the resistor 20, and the resistor 16.
As an alternative embodiment, as shown in the schematic diagram of the two-stage amplifying circuit shown in fig. 8, the port 12 of the U3D amplifier is connected to the first ends of the resistor 13, the resistor 15 and the capacitor 8; the second end of the capacitor 8 is grounded; the port 13 of the U3D amplifier is connected with one end of a resistor 12, a resistor 17, a resistor 19 and a capacitor 10; the second ends of the resistor 12 and the resistor 13 are connected with the power supply system; the second ends of the resistor 15 and the resistor 17 are connected with the first end of the capacitor 5; the terminal 14 of the U3D amplifier is connected to the resistor 19, the capacitor 10, and the capacitor 6.
As an alternative embodiment, as shown in fig. 9, a schematic structural diagram of a low-gain low-pass filter circuit is shown, where the dual-channel amplification filter circuit includes: a low-gain low-pass filter circuit in which a port 7 of the U3B amplifier is connected to one end of the resistor 3; the port 6 of the U3B amplifier is connected with the first ends of the resistor 2, the resistor 7, the resistor 10 and the capacitor 3; the second ends of the resistor 2 and the resistor 3 are connected with the power supply system; the port 5 of the U3B amplifier is connected to the resistor 10, the capacitor 3, and the resistor 6.
As an alternative embodiment, as shown in fig. 10, the high-gain low-pass filter circuit further includes: a high-gain low-pass filter circuit in which a resistor 5 is connected to a port 3 of a U3A amplifier; the port 2 of the U3A amplifier is connected with the first ends of the resistor 4, the resistor 8, the resistor 11 and the capacitor 4; the resistor 4 and the resistor 5 are connected with the power supply system; the port 4 of the U3A amplifier is connected with the first ends of the resistor 1, the capacitor 1 and the capacitor 2; the second end of the resistor 1 is connected with the power supply system; the second ends of the capacitor 1 and the capacitor 2 are grounded; port 8 of the U3A amplifier is grounded; the resistor 11, the capacitor 4, and the resistor 9 are connected to the port 1 of the U3A amplifier.
As an optional embodiment, the analog quantity acquired by the signal acquisition module sequentially passes through a pre-amplification filter circuit, a secondary amplification circuit, a low-gain low-pass filter circuit or a high-gain low-pass filter circuit to realize three-level amplification and two-time filtering, and finally the required pipeline leakage noise analog quantity is obtained, and the analog quantity is converted into a digital quantity through a single chip microcomputer to complete pipeline leakage signal acquisition.
In the embodiment of the utility model, the noise monitoring terminal is a noise acquisition sensor.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: pipeline leakage monitoring facilities or device through monitoring system of water supply pipe leakage in time discover the pipeline leak source to reduce the physical loss fast, reduce the loss and the waste of water resource, reduce water supply network leakage rate, to a great extent saves the water supply cost of running water company, has avoided needing the work experience abundant leakage detection staff to consume a large amount of manpowers and material resources to investigate at night, and the not good technical problem of monitoring effect.
It should be noted that the specific structure of the water supply pipeline leakage monitoring system shown in fig. 1 in the present application is only illustrative, and the water supply pipeline leakage monitoring system in the present application may have a structure more or less than that of the water supply pipeline leakage monitoring system shown in fig. 1 in a specific application.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and do not limit the present invention. Various modifications and substitutions for the described embodiments will occur to those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.
In addition, it should be noted that, for alternative or preferred embodiments of the present embodiment, reference may be made to the relevant description in embodiment 1, and details are not described herein again.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A system for monitoring leakage from a water supply pipeline, comprising:
the noise monitoring system comprises a plurality of noise monitoring terminals, a plurality of water supply pipelines and a plurality of monitoring terminals, wherein each noise monitoring terminal is respectively arranged at a plurality of different monitoring positions of the water supply pipeline and is used for acquiring a current vibration sound signal of each monitoring position;
the inspection host is connected with the noise monitoring terminal and used for determining that the water supply pipeline is corresponding to the current vibration sound signal when the current vibration sound signal is different from the normal vibration sound signal, and pipeline leakage exists in the monitoring position.
2. The monitoring system of claim 1, wherein the noise monitoring terminal comprises:
the signal amplification acquisition circuit is used for acquiring the current vibration sound signal, wherein the signal amplification acquisition circuit comprises: the device comprises a pre-amplification filter circuit, a secondary amplification circuit and a dual-channel amplification filter circuit;
the first wireless communication module is connected with the signal amplification and acquisition circuit and the inspection host and used for sending the current vibration sound signal to the inspection host;
and the data storage chip is connected with the signal amplification and acquisition circuit and is used for storing the current vibration sound signal.
3. The monitoring system of claim 2, wherein the noise monitoring terminal is a noise collection sensor, further comprising:
the power supply system is used for supplying power to the noise monitoring terminal;
the single chip microcomputer is connected with the data storage chip, the signal amplification and acquisition circuit and the first wireless communication module, and is used for switching from a low-power-consumption operation mode to a signal acquisition mode under a preset condition and sequentially starting the signal amplification and acquisition circuit, the first wireless communication module and a power supply of the data storage chip under the signal acquisition mode so as to finish acquisition and storage of the current vibration sound signal;
wherein the predetermined condition is at least one of: and reaching the set monitoring time, receiving a monitoring command and triggering a monitoring switch.
4. The monitoring system of claim 2, wherein in the pre-amplification filter circuit, the port 10 of the U3C band-pass filter is connected to a first terminal of a resistor 14, and a second terminal of the resistor 14 is connected to a power supply system; the port 9 of the U3C band-pass filter is respectively connected with the first ends of the capacitor 7, the capacitor 9 and the resistor 18; the second end of the capacitor 7 is connected with the input end of the pre-amplification filter circuit; the second end of the resistor 18 is connected with the first ends of the resistors 20 and 21 respectively; a second end of the resistor 21 is connected with the power supply system; and the port 8 of the U3C band-pass filter is connected with the capacitor 9, the resistor 20 and the resistor 16.
5. The monitoring system of claim 4, wherein in the secondary amplification circuit, a port 12 of a U3D amplifier is connected with a first end of a resistor 13, a resistor 15 and a capacitor 8; the second end of the capacitor 8 is grounded; the port 13 of the U3D amplifier is connected with one end of a resistor 12, a resistor 17, a resistor 19 and a capacitor 10; the second ends of the resistor 12 and the resistor 13 are connected with the power supply system; the second ends of the resistor 15 and the resistor 17 are connected with the first end of the capacitor 5; the port 14 of the U3D amplifier is connected to the resistor 19, the capacitor 10 and the capacitor 6.
6. The monitoring system of claim 4, wherein the two-channel amplification filtering circuit comprises: a low-gain low-pass filter circuit in which a port 7 of a U3B amplifier is connected to one end of a resistor 3; the port 6 of the U3B amplifier is connected with the first ends of the resistor 2, the resistor 7, the resistor 10 and the capacitor 3; the second ends of the resistor 2 and the resistor 3 are connected with the power supply system; the port 5 of the U3B amplifier is connected to the resistor 10, the capacitor 3 and the resistor 6.
7. The monitoring system of claim 6, wherein the two-channel amplification filtering circuit further comprises: a high-gain low-pass filter circuit in which a port 3 of a U3A amplifier is connected to a resistor 5; the port 2 of the U3A amplifier is connected with the first ends of the resistor 4, the resistor 8, the resistor 11 and the capacitor 4; the resistor 4 and the resistor 5 are connected with the power supply system; the port 4 of the U3A amplifier is connected with the first ends of the resistor 1, the capacitor 1 and the capacitor 2; the second end of the resistor 1 is connected with the power supply system; the second ends of the capacitor 1 and the capacitor 2 are grounded; port 8 of the U3A amplifier is connected to ground; the port 1 of the U3A amplifier is connected to the resistor 11, the capacitor 4 and the resistor 9.
8. The monitoring system of any one of claims 1 to 7, wherein the noise monitoring terminal is a noise collection sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123443196.6U CN216693086U (en) | 2021-12-31 | 2021-12-31 | Monitoring system for leakage of water supply pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123443196.6U CN216693086U (en) | 2021-12-31 | 2021-12-31 | Monitoring system for leakage of water supply pipeline |
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| CN216693086U true CN216693086U (en) | 2022-06-07 |
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| CN202123443196.6U Active CN216693086U (en) | 2021-12-31 | 2021-12-31 | Monitoring system for leakage of water supply pipeline |
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2021
- 2021-12-31 CN CN202123443196.6U patent/CN216693086U/en active Active
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