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CN221626396U - Intelligent yin-protection test pile and system based on LoRa-Mesh - Google Patents

Intelligent yin-protection test pile and system based on LoRa-Mesh Download PDF

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Publication number
CN221626396U
CN221626396U CN202323619731.8U CN202323619731U CN221626396U CN 221626396 U CN221626396 U CN 221626396U CN 202323619731 U CN202323619731 U CN 202323619731U CN 221626396 U CN221626396 U CN 221626396U
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lora
intelligent
protection
main controller
yin
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赵媛
温辉
王�锋
张俊
李叶斌
孙昭君
姚国斌
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Shanxi Natural Gas Co ltd
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Shanxi Natural Gas Co ltd
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Abstract

The utility model belongs to the field of cathode protection and monitoring of buried long-distance pipelines, and particularly relates to an intelligent cathode protection test pile and system based on LoRa-Mesh. Comprising the following steps: the device comprises a test pile shell, a reference electrode and a pipeline test cable, wherein a negative protection data acquisition circuit, a data interface and a control circuit are arranged in the test pile shell; the reference electrode and the pipeline test cable are connected with the input end of the negative protection data acquisition circuit, and the output end of the negative protection data acquisition circuit is connected with the control circuit through a data interface; the control circuit includes: the device comprises a main controller, a LoRa communication module, a data storage module and a Bluetooth communication module; the main controller is connected with the output end of the negative protection data acquisition circuit through a data interface, and is in communication connection with the LoRa gateway or the adjacent intelligent negative protection test pile through the LoRa communication module, and is connected with the configuration upper computer through the Bluetooth communication module. The utility model can realize the on-line detection of the public security data in the public network-free area, and is practical, convenient, stable and reliable.

Description

Intelligent yin-protection test pile and system based on LoRa-Mesh
Technical Field
The utility model belongs to the field of cathode protection and monitoring of buried long-distance pipelines, and particularly relates to an intelligent cathode protection test pile and system based on LoRa-Mesh.
Background
The LoRa-Mesh is a Mesh network adopting a spread spectrum technology, in particular to a distributed peer-to-peer Mesh network, the communication frequency band is 433/470/868/915MHz, 10-level routing is supported, the theoretical coverage range of the network reaches more than tens of kilometers, the communication distance is long, the spread spectrum frequency hopping technology has strong anti-interference capability, the use is simple, the Mesh network is very suitable for being applied to multi-node, low-rate and low-power-consumption Internet of things scenes, and is mainly used for communication such as real-time meter reading, charging, cost control and equipment fault remote state monitoring of an ammeter, meanwhile, the Mesh network has the advantages of quick deployment, low cost and the like, and is suitable for ultra-large-scale network deployment.
The buried long-distance natural gas pipeline is a main line gas pipeline between cities and has the characteristics of large gas transmission capacity, high pressure and long gas transmission distance. In the service process of the long-distance pipeline, cathode protection measures, generally sacrificial anode protection and forced current protection methods, need to be applied to the long-distance pipeline, and related departments of pipeline management periodically detect the cathode protection potential of the pipeline, analyze and evaluate summarized data and judge whether the protected state of the pipeline is normal or not. The daily potential test is mainly divided into an automatic acquisition mode and a manual acquisition mode. In the traditional cathode protection monitoring method, professional personnel carry detection equipment regularly, detect and record protection potential data on site, and then perform unified analysis and store file record. Because the long-distance pipeline of the long-distance pipeline is long, the environment along the line is complex, the periodic manual inspection mode needs to spend a large amount of manpower and material resources, the detection equipment is behind, the accuracy is low, the timeliness is poor, the acquired data volume is limited, and false alarm and false judgment phenomena are easy to occur. Especially in mountain, river and farmland where the pipeline passes, when encountering severe weather, the manual test is inconvenient or even impossible.
In recent years, in some places such as pipe sections and stations, long-distance pipeline operation companies in China upgrade and reform the long-distance pipeline cathode protection system according to the problems, and install some cathode protection test piles which can automatically collect data and remotely transmit the data, so that some practical problems are solved. However, the existing test pile communication mode is realized by adding 4G communication, NB-Iot communication, GPRS communication and the like, and the data transmission is required to be performed by depending on a mobile communication network of an operator. The topography and other natural environments along the long-distance pipeline are complex, and some blind areas without coverage of base station signals of operators still cannot realize remote monitoring of yin-protection test data. Aiming at the problem that the remote transmission of the negative potential data cannot be carried out in the area without public network, no effective solution has been proposed.
Disclosure of utility model
Aiming at solving the problem of wireless transmission of the yin-insurance data in a blind area which is not covered by an operator mobile network in a long-distance pipeline path area, the utility model provides an intelligent yin-insurance test pile and system based on LoRa-Mesh, so as to realize safe and stable transmission of the yin-insurance data.
In order to solve the technical problems, the utility model adopts the following technical scheme: an intelligent yin-preserving test pile based on LoRa-Mesh, comprising: the device comprises a test pile shell, a reference electrode and a pipeline test cable, wherein the bottom of the test pile shell is fixedly arranged in the ground, and the reference electrode is arranged in the ground at one side of a long-distance pipeline; a negative protection data acquisition circuit, a data interface and a control circuit are arranged in the test pile shell;
The reference electrode is connected with the input end of the negative protection data acquisition circuit through a reference electrode cable, one end of the pipeline test cable is electrically connected with the long-distance pipeline, the other end of the pipeline test cable is connected with the input end of the negative protection data acquisition circuit, and the output end of the negative protection data acquisition circuit is connected with the control circuit through a data interface;
The control circuit includes: the system comprises a main controller, a LoRa communication module, a data storage module, a Bluetooth communication module and a power management control module; the main controller is connected with the output end of the negative protection data acquisition circuit through a data interface, the main controller is in communication connection with the LoRa gateway or an adjacent intelligent negative protection test pile through the LoRa communication module, the main controller is connected with the configuration upper computer through the Bluetooth communication module, and the power management control module is used for supplying power to the negative protection data acquisition circuit and the control circuit.
The intelligent negative protection test pile based on the LoRa-Mesh further comprises a solar cell panel and a LoRa antenna, wherein the solar cell panel and the LoRa antenna are arranged on the test pile shell, and the output end of the solar cell panel is connected with the power management control module and is used for supplying power to the control circuit board; the LoRa antenna is connected with the LoRa communication module.
The test pile shell is arranged between the reference electrode and the long-distance pipeline.
The LoRa communication module adopts WH-L101-L-C as a LoRa core processor, and the MCU model selected by the main controller is ESP32-PICO-D4.
The control circuit also comprises a key module, wherein the key module comprises a reset key SW1, a download key SW2, a confirm key SW3 and a select key SW4; two ends of the reset key SW1, the download key SW2, the confirm key SW3 and the select key SW4 are respectively connected with a capacitor in parallel; one end of the reset button SW1 is grounded, and the other end of the reset button SW is connected with an EN port of the main controller through a resistor R12; one end of the download key SW2 is grounded, and the other end of the download key SW2 is connected with an IO0 port of the main controller through a resistor R17; one end of the download key SW3 is grounded, and the other end of the download key SW is connected with an IO19 port of the main controller through a resistor R18; one end of the download key SW4 is grounded, and the other end of the download key SW is connected with an IO23 port of the main controller through a resistor R19; and an IO0 port, an IO19 port and an IO23 port of the main controller are also respectively connected with the positive electrode of the power supply through a pull-up resistor R13, a pull-up resistor R14 and a pull-up resistor R15.
In addition, the invention also provides an intelligent yin-protection testing system based on LoRa-Mesh, which comprises a data center, a valve chamber and a plurality of intelligent yin-protection testing piles, wherein the valve chamber is arranged along a long-distance pipeline and is internally provided with a LoRa gateway; each intelligent yin-protection test pile is uniformly distributed along a long-distance pipeline between two valve chambers, each intelligent yin-protection test pile forms a Lora substation, each Lora substation is connected with a LoRa gateway through Lora communication in sequence in communication mode, and the LoRa gateway is connected with a data center through Internet and/or Beidou satellite communication.
The valve chambers are arranged at intervals of 20km along the long-distance pipeline, and the intelligent negative protection test piles are arranged at intervals of 1km along the long-distance pipeline; the test piles between the two valve chambers are respectively organized into 2 groups according to the signal coverage radius of the valve chamber LoRa base station, and the intelligent female protection test piles in each group are only communicated with the intelligent female protection test piles in the groups or the LoRa gateway in the corresponding valve chamber.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides a long-distance pipeline intelligent negative-protection test pile and a long-distance pipeline intelligent negative-protection test system based on LoRa-Mesh communication, which are used for carrying out data transmission based on a LoRa-Mesh wireless communication network and supplying power for the intelligent test pile by combining a solar cell, so that the problem of negative-protection potential data remote transmission in an area without public network coverage is solved. The test pile is particularly suitable for being deployed in complex environments such as the field, mountain areas and the like with difficult power supply and communication, and has the advantages of convenience in arrangement, good data acquisition continuity, stability and reliability, simplicity and convenience in use and low operation and maintenance cost. And data transmission is carried out in a LoRa ad hoc network communication mode, so that flow cost is not needed, and cost is saved.
Drawings
Fig. 1 is a schematic structural diagram of a smart yin-protection test pile based on a LoRa-Mesh according to a first embodiment of the present utility model;
FIG. 2 is a schematic block diagram of a control circuit according to a first embodiment of the present utility model;
FIG. 3 is a schematic circuit diagram of a data interface according to a first embodiment of the present utility model;
FIG. 4 is a schematic circuit diagram of a main controller according to a first embodiment of the present utility model;
FIG. 5 is a schematic circuit diagram of a LoRa communication module according to a first embodiment of the present utility model;
FIG. 6 is a schematic circuit diagram of a key module according to an embodiment of the utility model;
FIG. 7 is a schematic circuit diagram of a power module according to a first embodiment of the utility model;
Fig. 8 is a block diagram of a LoRa-Mesh intelligent yin-insurance testing system according to a second embodiment of the present utility model;
fig. 9 is a communication diagram in a second embodiment of the present invention.
In the figure: 1 is a test pile shell, 2 is a reference electrode, 3 is a pipeline test cable, 4 is a long-distance pipeline, 5 is a reference electrode cable, 6 is a solar cell panel, 7 is a LoRa antenna, 8 is an intelligent negative protection test pile, and 9 is a valve chamber.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1-2, an embodiment of the present utility model provides an intelligent yin-protection test pile based on LoRa-Mesh, including: the device comprises a test pile shell 1, a reference electrode 2 and a pipeline test cable 3, wherein the bottom of the test pile shell 1 is fixedly arranged in the ground, and the reference electrode 2 is arranged in the ground at one side of a long-distance pipeline 4; a negative protection data acquisition circuit, a data interface and a control circuit are arranged in the test pile shell 1;
The reference electrode 2 is connected with the input end of the negative protection data acquisition circuit through a reference electrode cable 5, one end of the pipeline test cable 3 is electrically connected with the long-distance pipeline 4, the other end of the pipeline test cable is connected with the input end of the negative protection data acquisition circuit, and the output end of the negative protection data acquisition circuit is connected with the control circuit through a data interface;
The control circuit includes: the system comprises a main controller, a LoRa communication module, a data storage module, a Bluetooth communication module and a power management control module; the main controller is connected with the output end of the negative protection data acquisition circuit through a data interface, the main controller is in communication connection with the LoRa gateway or an adjacent intelligent negative protection test pile through the LoRa communication module, the main controller is connected with the configuration upper computer through the Bluetooth communication module, and the power management control module is used for supplying power to the negative protection data acquisition circuit and the control circuit.
Specifically, in this embodiment, the negative-pressure data acquisition circuit may be a data acquisition circuit in a negative-pressure data acquisition apparatus commonly used in the prior art, for example, a negative-pressure data acquisition apparatus with model numbers of HFCS-1 to HFCS-7.
Further, as shown in fig. 1 and 2, the intelligent female protection test pile of the embodiment further includes a solar panel 6 and a LoRa antenna 7 disposed on the test pile housing 1, where an output end of the solar panel 6 is connected to the power management control module, and is used for supplying power to the control circuit board; the LoRa antenna 7 is connected with the LoRa communication module.
Specifically, in this embodiment, the test pile housing 1 is installed between the reference electrode 2 and the long-distance pipeline 4. The test stake housing 1 should be prevented from being mounted directly above the reference electrode 3 so as not to damage the reference electrode. And (3) backfilling fine soil at the bottom after the intelligent test pile shell is erected and lightly stepping and compacting to fix the test pile.
As shown in fig. 3-5, in this embodiment, the LoRa communication module adopts WH-L101-L-C as the LoRa core processor, the MCU model selected by the main controller is ESP32-PICO-D4, and the ESP32-PICO-D4 is embedded with a bluetooth module, and is mainly used for initializing, configuring and inspecting parameters of the intelligent test pile. The intelligent PAD configured by the line inspection personnel can communicate with the intelligent test pile in real time by using a Bluetooth communication mode so as to check the working state of the intelligent PAD. When the Bluetooth communication device is put into use for the first time, the initialization parameters of the Bluetooth communication device are configured by the Bluetooth communication device. The initialization parameters include the position information, the line information, the organization information and the position coordinate of the test pile, and the calibration information, but are not limited to the information, and the attribute information of the intelligent test pile can be flexibly preset coded.
Specifically, in this embodiment, the data output by the yin-protection data acquisition circuit is sent to the main controller through the Uart1 data interface.
In this embodiment, as shown in fig. 7, the power management control module is configured to convert the battery voltage or the output voltage of the solar battery into 3.3V dc voltage, and then supply power to the entire control circuit and the negative protection data acquisition circuit. The power management control module may have a chip U1 model number of ASM1117.
Further, as shown in fig. 6, in this embodiment, the control circuit further includes a key module, where the key module includes a reset key SW1, a download key SW2, a confirm key SW3, and a select key SW4; two ends of the reset key SW1, the download key SW2, the confirm key SW3 and the select key SW4 are respectively connected with a capacitor in parallel; one end of the reset button SW1 is grounded, and the other end of the reset button SW is connected with an EN port of the main controller through a resistor R12; one end of the download key SW2 is grounded, and the other end of the download key SW2 is connected with an IO0 port of the main controller through a resistor R17; one end of the download key SW3 is grounded, and the other end of the download key SW is connected with an IO19 port of the main controller through a resistor R18; one end of the download key SW4 is grounded, and the other end of the download key SW is connected with an IO23 port of the main controller through a resistor R19; and an IO0 port, an IO19 port and an IO23 port of the main controller are also respectively connected with the positive electrode of the power supply through a pull-up resistor R13, a pull-up resistor R14 and a pull-up resistor R15.
Example two
As shown in fig. 8, a second embodiment of the present utility model provides an intelligent yin-protection testing system based on LoRa-Mesh, which includes a data center, a valve chamber 9 and the intelligent yin-protection testing pile 8 according to the first embodiment, wherein the valve chamber 9 is disposed along the long-distance pipeline 4, and a LoRa gateway is disposed therein; each intelligent yin-protection test pile is uniformly distributed along the long-distance pipeline 4 between two valve chambers, each intelligent yin-protection test pile forms a Lora substation, each Lora substation is connected with a LoRa gateway through Lora communication in sequence in communication mode, and the LoRa gateway is connected with a data center through Internet and/or Beidou satellite communication.
Specifically, in this embodiment, the valve chambers are disposed along the long-distance pipeline 4 every 20km, and the intelligent negative protection test piles are disposed along the long-distance pipeline 4 every 1 km. The data center comprises a database server, a geographic information system server and an application client; the database server establishes a communication link with the LoRa gateway through an open database interface and is used for storing pipeline cathodic protection potential data and related equipment data transmitted back by the LoRa gateway through the Ethernet; the geographic information system server is used for providing geographic information service for the application client, and can display the cathodic protection state of the pipeline in real time and intuitively on the basis of geographic information on the client so as to perform early warning reminding on the pipeline potential abnormal pipeline section; the database server is connected with the application client through network cables and provides real-time data monitoring service, historical data query service, equipment management, related report generation and other services for the client.
Further, as shown in fig. 9, in this embodiment, the test piles between two valve chambers are respectively organized into two groups of 1 group and 2 groups according to the signal coverage radius of the valve chamber LoRa base station, and the intelligent female protection test piles in each group are only in communication with the intelligent female protection test piles in the groups or the LoRa gateway in the corresponding valve chamber. That is, all intelligent female test piles 8 in group 1 communicate only with the intelligent female test piles 8 in group 1 or the LoRa gateway of the left valve chamber, and all intelligent female test piles 8 in group 2 communicate only with the intelligent female test piles 8 in group 2 or the LoRa gateway of the right valve chamber. The arrangement can ensure that all intelligent female protection test piles 8 can not forward when receiving test pile signals of another group, and can only forward step by step when receiving coded signals in the same group, so as to ensure that the coded signals broadcast by the test piles can not generate coupling interference with each other.
The working principle of the utility model is as follows: after the female protection data acquisition circuit arranged in each test pile acquires the female protection data through the pipeline test cable 3 and the female protection electrode 2, the female protection data are transmitted to the main controller through the data interface, the main controller encodes the data and then transmits the encoded data through broadcasting, the LoRa communication modules on the adjacent test piles receive the broadcasting signals, decode and secondarily encode the broadcasting signals and then forward the broadcasting signals again, and after the broadcasting signals are sequentially forwarded, the data are transmitted to the LoRa gateway arranged at the valve chamber. After the LoRa gateway receives the data, the data is analyzed and then uploaded to a data center through Internet and/or Beidou satellite communication, meanwhile, the LoRa gateway sends out a response signal, the response signal is broadcast out in the same mode, and after the response signal is received by the test pile, the completion of data transmission is confirmed. Otherwise, the data which is sent but not received the response signal is stored in the local data storage module and is retransmitted after a certain time interval, so that the utility model can realize the online transmission of the private data in the public network-free area, and is practical, convenient, stable and reliable.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (7)

1. Intelligent yin-protection test pile based on loRa-Mesh, which is characterized by comprising: the device comprises a test pile shell (1), a reference electrode (2) and a pipeline test cable (3), wherein the bottom of the test pile shell (1) is fixedly arranged in the ground, and the reference electrode (2) is arranged in the ground at one side of a long-distance pipeline (4); a negative protection data acquisition circuit, a data interface and a control circuit are arranged in the test pile shell (1);
The reference electrode (2) is connected with the input end of the negative protection data acquisition circuit through a reference electrode cable (5), one end of the pipeline test cable (3) is electrically connected with the long-distance pipeline (4), the other end of the pipeline test cable is connected with the input end of the negative protection data acquisition circuit, and the output end of the negative protection data acquisition circuit is connected with the control circuit through a data interface;
The control circuit includes: the system comprises a main controller, a LoRa communication module, a data storage module, a Bluetooth communication module and a power management control module; the main controller is connected with the output end of the negative protection data acquisition circuit through a data interface, the main controller is in communication connection with the LoRa gateway or an adjacent intelligent negative protection test pile through the LoRa communication module, the main controller is connected with the configuration upper computer through the Bluetooth communication module, and the power management control module is used for supplying power to the negative protection data acquisition circuit and the control circuit.
2. The intelligent female protection testing pile based on LoRa-Mesh according to claim 1, further comprising a solar panel (6) and a LoRa antenna (7) arranged on the testing pile shell (1), wherein the output end of the solar panel (6) is connected with the power management control module and is used for supplying power to the control circuit board; the LoRa antenna (7) is connected with the LoRa communication module.
3. The intelligent yin-protection test pile based on LoRa-Mesh according to claim 1, wherein the test pile housing (1) is mounted between a reference electrode (2) and a long-distance pipeline (4).
4. The intelligent yin-protection test pile based on the loRa-Mesh, according to claim 1, is characterized in that the loRa communication module adopts WH-L101-L-C as a loRa core processor, and the MCU model selected by the main controller is ESP32-PICO-D4.
5. The intelligent yin-preserving testing stake of claim 1, wherein the control circuit further comprises a key module including a reset key SW1, a download key SW2, a confirm key SW3 and a select key SW4; two ends of the reset key SW1, the download key SW2, the confirm key SW3 and the select key SW4 are respectively connected with a capacitor in parallel; one end of the reset button SW1 is grounded, and the other end of the reset button SW is connected with an EN port of the main controller through a resistor R12; one end of the download key SW2 is grounded, and the other end of the download key SW2 is connected with an IO0 port of the main controller through a resistor R17; one end of the download key SW3 is grounded, and the other end of the download key SW is connected with an IO19 port of the main controller through a resistor R18; one end of the download key SW4 is grounded, and the other end of the download key SW is connected with an IO23 port of the main controller through a resistor R19; and an IO0 port, an IO19 port and an IO23 port of the main controller are also respectively connected with the positive electrode of the power supply through a pull-up resistor R13, a pull-up resistor R14 and a pull-up resistor R15.
6. An intelligent yin-protection testing system based on LoRa-Mesh, which is characterized by comprising a data center, a valve chamber and a plurality of intelligent yin-protection testing piles, wherein the valve chamber is arranged along a long-distance pipeline (4) and is internally provided with a LoRa gateway; each intelligent yin-protection test pile is uniformly distributed along a long-distance pipeline (4) between two valve chambers, each intelligent yin-protection test pile forms a Lora substation, each Lora substation is connected with a LoRa gateway in communication after being connected with each other in communication mode sequentially through Lora communication, and the LoRa gateway is connected with a data center in communication mode through Internet and/or Beidou satellite communication.
7. The intelligent yin-protection testing system based on LoRa-Mesh according to claim 6, wherein the valve chambers are arranged every 20km along the long-distance pipeline (4), and the intelligent yin-protection testing piles are arranged every 1km along the long-distance pipeline (4); the test piles between the two valve chambers are respectively organized into 2 groups according to the signal coverage radius of the valve chamber LoRa base station, and the intelligent female protection test piles in each group are only communicated with the intelligent female protection test piles in the groups or the LoRa gateway in the corresponding valve chamber.
CN202323619731.8U 2023-12-28 2023-12-28 Intelligent yin-protection test pile and system based on LoRa-Mesh Active CN221626396U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202323619731.8U CN221626396U (en) 2023-12-28 2023-12-28 Intelligent yin-protection test pile and system based on LoRa-Mesh

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202323619731.8U CN221626396U (en) 2023-12-28 2023-12-28 Intelligent yin-protection test pile and system based on LoRa-Mesh

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CN221626396U true CN221626396U (en) 2024-08-30

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