Power line on-line monitoring method and system for natural gas pipeline network

Abstract

The invention discloses a power line on-line monitoring method and system for a natural gas pipeline network, and relates to the technical field of power line monitoring. Line key nodes of a power line where the natural gas pipeline network is located are arranged, a plurality of types of sensors are deployed, and communication subnetworking is performed on all the sensors to which each line key node belongs; the method comprises the following steps: constructing partition monitoring networks to collect power related data of each line key node, performing communication parent networking on all the partition monitoring networks, constructing a natural gas pipeline network power comprehensive monitoring network, and summarizing the power related data of each line key node into the natural gas pipeline network power comprehensive monitoring network. After data processing, a data stream is generated and uploaded to a pipe network maintenance center, after the pipe network maintenance center carries out data analysis and reduction on the data stream, through comparison with a preset condition threshold value, a line section with an abnormal operation state in a current natural gas pipe network is judged, and corresponding early warning information is generated to inform operation and maintenance personnel to carry out line maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of power line monitoring, and in particular to an online monitoring method and system for power lines of a natural gas pipeline network. Background Art

[0002] With the rapid development of natural gas pipeline construction in my country, power lines play a vital role in the natural gas pipeline transportation process. However, during the long-term operation, power lines are easily affected by factors such as their own working voltage, working current or temperature, which may lead to line failures. In order to ensure the safe operation of natural gas pipelines, it is necessary to conduct online monitoring of power lines.

[0003] Therefore, how to efficiently and accurately obtain the power-related data generated by the power lines and perform data analysis on the power-related data in order to locate the abnormal parts of the power lines where the natural gas pipeline network is located, and to perform line maintenance in a timely manner, so as to provide guarantee for the safe operation of large-scale power grids such as the power lines where the natural gas pipeline network is located, has become a top priority. Summary of the invention

[0004] In order to solve the above problems, the object of the present invention is to provide a method and system for online monitoring of power lines in a natural gas pipeline network.

[0005] The purpose of the present invention can be achieved by the following technical solution: A method for online monitoring of power lines in a natural gas pipeline network, comprising the following steps: Step S1: Set the key nodes of the power line where the natural gas pipeline network is located, and deploy several types of sensors at the key nodes of the line, conduct communication sub-networking for all sensors belonging to each key node of the line, and then build a partition monitoring network to collect power-related data of each key node of the line; Step S2: Conduct communication parent networking for all the partition monitoring networks, and then build a natural gas pipeline network power integrated monitoring network, aggregate the power-related data of each key node of the line into the natural gas pipeline network power integrated monitoring network, and generate data streams after data processing and upload them to the pipeline network maintenance center; Step S3: After the pipeline maintenance center parses and restores the data stream, it compares it with the preset condition threshold to determine the line segments with abnormal operating status in the current natural gas pipeline network, and generates corresponding warning information to notify the operation and maintenance personnel to perform line maintenance.

[0006] Furthermore, the process of setting the key nodes of the power line where the natural gas pipeline network is located and deploying several types of sensors at the key nodes of the line includes: The power line where the natural gas pipeline network is located is connected to several power consumption units, and the connection points between the power consumption units and the power line where the natural gas pipeline network is located are marked as key line nodes. The key line nodes are numbered and recorded as i, i = 1, 2, 3, ..., n, where n is a natural number greater than 0; Several types of sensors are deployed at each key node of the line, and it is determined whether each type of sensor is in normal working condition; if so, no operation is performed; if not, a certain type of sensor that is not in normal working condition is debugged until the sensor is in normal working condition; when each type of sensor corresponding to the key node of the line is in normal working condition, the sensor deployment at the current key node of the line is completed, and then the sensor deployment at all key nodes of the line is completed.

[0007] Furthermore, the process of conducting communication sub-networking for all sensors belonging to each key node of each line, and then constructing a partition monitoring network to collect power-related data of each key node of each line includes: Take any type of sensor in each key node of the line as the networking center device, and the networking center device builds the networking request link corresponding to the communication sub-network, obtains the communication IP of the networking center device, and the networking center device sends the networking request link with its own communication IP to the sensors of other non-networking center devices under the key node of the current line, and the sensor receives the networking request link and the communication IP of the networking center device, thereby building a point-to-point communication between the networking center device and the current sensor; For all sensors at each key node of each line, when each sensor completes point-to-point communication with the networking center device, a partition monitoring network corresponding to the current key node of the line is constructed, and the partition monitoring network collects power-related data at each corresponding key node of the line. The power-related data includes working voltage, working current and working temperature; The operating voltage, operating current and operating temperature corresponding to the key line node numbered i are identified as V[i], A[i] and C[i] respectively, where i is the number corresponding to the key line node and serves as the unique identity of the key line node.

[0008] Furthermore, the process of networking all the partition monitoring networks and then building a comprehensive monitoring network for natural gas pipelines and electricity includes: Obtain the node map coordinates of the key nodes of the lines corresponding to several partition monitoring networks. The node map coordinates are used to indicate the geographical location of the key nodes of the lines. Deploy the server side and configure the operating environment of the server side. Each partition monitoring network constructs a networking request for the parent network of communication and carries the node coordinate map of the key nodes of the lines corresponding to itself, and sends it to the server side together with the networking request. Determine whether the server is in a safe operation state; When the server is in a safe state, the server receives the networking requests of all sub-area monitoring networks. After all the networking requests are reviewed and approved, the communication parent networking is completed, and then the natural gas pipeline network and power comprehensive monitoring network are constructed; if there is a networking request of a sub-area monitoring network that fails to pass the review, the corresponding networking request that fails to pass the review is returned to the corresponding sub-area monitoring network, and the sub-area monitoring network reconstructs the networking request and sends it to the server; When the server is not in a safe operation state, the partition monitoring network will not receive the corresponding networking request, and the server's operating environment will be reconfigured until the server is in a safe operation state again, and then the network request will continue to be received.

[0009] Furthermore, the process of aggregating the power-related data of each key node of each line into the natural gas pipeline network power integrated monitoring network and generating a data stream after data processing and uploading it to the pipeline network maintenance center includes: The natural gas pipeline network power integrated monitoring network creates several temporary memory spaces, aggregates and uploads the power-related data of each key node of each line to the natural gas pipeline network power integrated monitoring network, and allocates an unused temporary memory space to store the power-related data until the power-related data of all key nodes of the line are stored in the temporary memory space; During the set data processing period, load the power-related data stored in each temporary memory space in the natural gas pipeline power integrated monitoring network, define the data stream format of the power-related data, convert the power-related data into a data sequence byte stream through the serialization library, and mark the node map coordinates corresponding to each key node of the line to the corresponding data sequence byte stream, thereby generating a data stream of power-related data corresponding to each key node of the line; Build a data transmission channel between the natural gas pipeline power comprehensive monitoring network and the pipeline network maintenance center, enter the data stream generated by the power-related data of each key node of the line after data processing is completed into the data transmission channel, and upload all data streams to the pipeline network maintenance center through the data transmission channel.

[0010] Furthermore, after the pipeline network maintenance center parses and restores the data stream, the process of comparing the data with the preset condition threshold to determine the line segment with abnormal operation status in the current natural gas pipeline network includes: The data stream of each key node of each line is analyzed and restored in turn, and the original power-related data corresponding to each key node of the line is obtained at the pipeline network maintenance center; The preset conditional thresholds include a current critical threshold corresponding to the working current, a voltage critical threshold corresponding to the working voltage, and a temperature critical threshold corresponding to the working temperature, and the current critical threshold, the voltage critical threshold, and the temperature critical threshold are respectively denoted as A-max, V-max, and C-max; Compare the power-related data of each key node of the line with the condition threshold; When A[i]≥A-max, or V[i]≥V-max, or C[i]≥C-max, it is judged that the operating status of the line segment corresponding to the corresponding numbered line key node in the natural gas pipeline network is abnormal; otherwise, it is judged that there is no abnormality in the operating status of the line segment corresponding to the corresponding line key node.

[0011] Furthermore, the process of generating corresponding warning information to notify operation and maintenance personnel to perform line maintenance includes: When a line segment with an abnormal operating status is monitored in the natural gas pipeline network, early warning information of the corresponding line segment is generated, and the node map coordinates corresponding to the line segment with an abnormal operating status are sent to the power line administrator, who inputs the current node map coordinates into the personnel database. The personnel database matches the operation and maintenance personnel who are closest to the current node map coordinates. The operation and maintenance personnel receive the early warning information and perform line maintenance on the line segment with an abnormal operating status in the power line where the current natural gas pipeline network is located.

[0012] Furthermore, an online monitoring system for power lines of a natural gas pipeline network includes: The power-related data collection module sets the key nodes of the power line where the natural gas pipeline network is located, and deploys several types of sensors at the key nodes of the line, and conducts communication sub-networking for all sensors belonging to each key node of the line, and then builds a partition monitoring network to collect power-related data of each key node of the line; The power-related data processing module conducts communication parent networking for all the partition monitoring networks, and then builds a natural gas pipeline network power comprehensive monitoring network, aggregates the power-related data of each key node of the line into the natural gas pipeline network power comprehensive monitoring network, and generates data streams after data processing and uploads them to the pipeline network maintenance center; The line anomaly monitoring module, after the pipeline maintenance center parses and restores the data stream, compares it with the preset condition threshold, determines the line section with abnormal operating status in the current natural gas pipeline network, and generates corresponding early warning information to notify the operation and maintenance personnel to perform line maintenance.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by deploying different types of sensors at the key nodes of the power line where the natural gas pipeline network is located, and performing communication sub-networking to construct a partition monitoring network, the power-related data of each key node of the line are collected, and communication parent networking is performed on all the partition monitoring networks to construct a natural gas pipeline network power comprehensive monitoring network, and the power-related data of each key node of the line are summarized in the natural gas pipeline network power comprehensive monitoring network, and after data processing, a data stream is generated and uploaded to the pipeline network maintenance center, and after the pipeline network maintenance center parses and restores the data stream, it is compared with the preset condition threshold to determine the line section with abnormal operation status in the current natural gas pipeline network, and generate corresponding early warning information to notify the operation and maintenance personnel to perform line maintenance; on the one hand, efficient and accurate acquisition of power-related data corresponding to the power line is realized, and on the other hand, data analysis is performed on the power-related data to locate the abnormal line section in the power line, so as to perform line maintenance in time, thereby ensuring the safe operation of large-scale power grids. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0015] like Figure 1 As shown, a method for online monitoring of power lines in a natural gas pipeline network comprises the following steps: Step S1: Set the key nodes of the power line where the natural gas pipeline network is located, and deploy several types of sensors at the key nodes of the line, conduct communication sub-networking for all sensors belonging to each key node of the line, and then build a partition monitoring network to collect power-related data of each key node of the line; Step S2: Conduct communication parent networking for all the partition monitoring networks, and then build a natural gas pipeline network power integrated monitoring network, aggregate the power-related data of each key node of the line into the natural gas pipeline network power integrated monitoring network, and generate data streams after data processing and upload them to the pipeline network maintenance center; Step S3: After the pipeline maintenance center parses and restores the data stream, it compares it with the preset condition threshold to determine the line segments with abnormal operating status in the current natural gas pipeline network, and generates corresponding warning information to notify the operation and maintenance personnel to perform line maintenance.

[0016] It should be further explained that, in the specific implementation process, the process of setting the key nodes of the power line where the natural gas pipeline network is located and deploying several types of sensors at the key nodes of the line includes: The power line where the natural gas pipeline network is located is connected to several power consumption units, and the connection points between the power consumption units and the power line where the natural gas pipeline network is located are marked as key nodes of the line. Several key nodes of the line are numbered and the number is recorded as i, then i = 1, 2, 3, ..., n, where n is a natural number greater than 0; Deploy several types of sensors at each key node of the line, including current sensors, voltage sensors and temperature sensors, to determine whether each type of sensor is in normal working condition; If so, no action is taken; If not, debug a certain type of sensor that is not in normal working condition until the sensor is in normal working condition; When each type of sensor corresponding to the key node of the line is in normal working condition, the sensor deployment at the current key node of the line is completed, and then the sensor deployment of all the key nodes of the line is completed.

[0017] It should be further explained that, in the specific implementation process, the process of conducting communication sub-networking for all sensors belonging to each key node of each line, and then constructing a partition monitoring network to collect power-related data of each key node of each line includes: Take any type of sensor in each key node of the line as the networking center device, and the networking center device builds the networking request link corresponding to the communication sub-network, obtains the communication IP of the networking center device, and the networking center device sends the networking request link with its own communication IP to the sensors of other non-networking center devices under the key node of the current line, and the sensor receives the networking request link and the communication IP of the networking center device, thereby building a point-to-point communication between the networking center device and the current sensor; For all sensors at each key node of each line, when each sensor completes point-to-point communication with the networking center device, a partition monitoring network corresponding to the current key node of the line is constructed, and the partition monitoring network collects power-related data at each corresponding key node of the line. The power-related data includes working voltage, working current and working temperature; Each sensor that receives a networking request to link integrates its own communication IP with the communication IP of the networking center device as a communication credential. Whenever the sensor uploads its collected power-related data to the partition monitoring network, it presents the communication credential for verification; When the communication IP recorded in the communication credential matches the communication IP of the two parties currently conducting data communication, the partition monitoring network is allowed to collect power-related data uploaded by the corresponding sensor. Otherwise, the partition monitoring network is prohibited from collecting data. The working voltage is collected by a voltage sensor, and the working voltage is identified as V[i]; The working current is collected by a current sensor, and the working current is identified as A[i]; The working temperature is collected by a temperature sensor, and the working temperature is identified as C[i]; Among them, i is the number corresponding to the key node of the line, which serves as the unique identity of the key node of the line.

[0018] It should be further explained that, in the specific implementation process, the process of communicating with all the partition monitoring networks and then building a comprehensive monitoring network for natural gas pipelines and electricity includes: For the partition monitoring networks corresponding to the key nodes of several lines, the node map coordinates of the key nodes of the lines corresponding to the partition monitoring networks are obtained, and the node map coordinates are used to indicate the geographical location of the key nodes of the lines; Deploy the server side and configure the corresponding operating environment of the server side. Each partition monitoring network constructs a networking request corresponding to the parent network for communication, and carries the node coordinate map of the key nodes of the corresponding line, and sends it to the server side together with the networking request; Determine whether the server is in a safe operation state; Set a judgment cycle, and in the current judgment cycle, obtain the attack frequency, attack source type, and attack intensity of the external attack received by the server; if the attack frequency exceeds the preset frequency upper limit, or the attack intensity exceeds the preset critical intensity, or the attack source type is an unknown attack source, then the server is judged to be not in a safe operation state, otherwise, the server is judged to be in a safe operation state; When the server is in a safe state, the server receives the networking requests corresponding to all the partition monitoring networks. After the networking requests of all the partition monitoring networks are reviewed and approved, the communication parent networking is completed, and then the natural gas pipeline network and power comprehensive monitoring network are constructed; If the networking request of a certain partition monitoring network fails to pass the review, the corresponding networking request that fails to pass the review is returned to the corresponding partition monitoring network, and the partition monitoring network reconstructs the networking request and sends it to the server; When the server is not in a safe operation state, the partition monitoring network will not receive the corresponding networking request, and the server's operating environment will be reconfigured until the server is in a safe operation state again, and then the network request will continue to be received.

[0019] It should be further explained that, in the specific implementation process, the power-related data of each key node of the line is aggregated into the natural gas pipeline network power integrated monitoring network, and the data stream is generated and uploaded to the pipeline maintenance center after data processing, including the following process: The natural gas pipeline network power integrated monitoring network creates several temporary memory spaces, collects and uploads the power-related data corresponding to each key node of the line to the natural gas pipeline network power integrated monitoring network, and allocates an unused temporary memory space to store the power-related data until the power-related data of all key nodes of the line are stored in the temporary memory space; Set a data processing period, record the data processing period as Tc, and Tc=[t1, t2], where t1 is the start time of the data processing period, and t2 is the end time of the data processing period; During the data processing period, load the power-related data stored in each temporary memory space in the natural gas pipeline power integrated monitoring network, define the data stream format corresponding to the power-related data, convert the power-related data into a data sequence byte stream through the serialization library, and mark the node map coordinates corresponding to each key node of the line to the corresponding data sequence byte stream, thereby generating a data stream of power-related data corresponding to each key node of the line; It should be noted that when the power-related data stored in the temporary memory space completes data processing and generates the corresponding data stream, the memory resources corresponding to the temporary memory space are released, and then the temporary memory space is destroyed to reduce the network load pressure of the natural gas pipeline power comprehensive monitoring network.

[0020] Build a data transmission channel between the natural gas pipeline power comprehensive monitoring network and the pipeline network maintenance center, enter the data stream generated by the power-related data of each key node of the line after data processing is completed into the data transmission channel, and upload all data streams to the pipeline network maintenance center through the data transmission channel.

[0021] It should be further explained that, in the specific implementation process, after the pipeline maintenance center parses and restores the data stream, it compares it with the preset condition threshold to determine the line segment with abnormal operation status in the current natural gas pipeline network. The process includes: After receiving all the data streams, the network maintenance center will analyze and restore the data streams corresponding to each key node of each line in turn, and then obtain the original power-related data corresponding to each key node of the line at the network maintenance center; The preset conditional thresholds include a current critical threshold corresponding to the working current, a voltage critical threshold corresponding to the working voltage, and a temperature critical threshold corresponding to the working temperature, and the current critical threshold, the voltage critical threshold, and the temperature critical threshold are respectively denoted as A-max, V-max, and C-max; The power-related data of each key node of each line is compared with the condition threshold, and then the line section with abnormal operation status in the natural gas pipeline network is determined, as follows: When A[i]≥A-max, or V[i]≥V-max, or C[i]≥C-max, it is judged that the operating status of the line segment corresponding to the corresponding numbered line key node in the natural gas pipeline network is abnormal; otherwise, it is judged that there is no abnormality in the operating status of the line segment corresponding to the corresponding line key node.

[0022] It should be further explained that, in the specific implementation process, the process of generating corresponding warning information to notify the operation and maintenance personnel to perform line maintenance includes: When a line segment with an abnormal operating status is detected in the natural gas pipeline network, an early warning message corresponding to the corresponding line segment is generated, and the node map coordinates corresponding to the line segment with an abnormal operating status are sent to the power line administrator, who inputs the current node map coordinates into the personnel database, and the personnel database matches the operation and maintenance personnel closest to the current node map coordinates. The operation and maintenance personnel receive the early warning message and perform line maintenance on the line segment with an abnormal operating status in the power line where the current natural gas pipeline network is located; The operation and maintenance personnel record the maintenance time of the line maintenance, the basic identity information of the operation and maintenance personnel themselves, and all the operation contents during the line maintenance process, and then generate a maintenance log corresponding to the current line maintenance, and store the maintenance log in the set database.

[0023] The present invention also discloses an online monitoring system for power lines of a natural gas pipeline network, the system comprising: The power-related data collection module sets the key nodes of the power line where the natural gas pipeline network is located, and deploys several types of sensors at the key nodes of the line, and conducts communication sub-networking for all sensors belonging to each key node of the line, and then builds a partition monitoring network to collect power-related data of each key node of the line; The power-related data processing module conducts communication parent networking for all the partition monitoring networks, and then builds a natural gas pipeline network power comprehensive monitoring network, aggregates the power-related data of each key node of the line into the natural gas pipeline network power comprehensive monitoring network, and generates data streams after data processing and uploads them to the pipeline network maintenance center; The line anomaly monitoring module, after the pipeline maintenance center parses and restores the data stream, compares it with the preset condition threshold, determines the line section with abnormal operating status in the current natural gas pipeline network, and generates corresponding early warning information to notify the operation and maintenance personnel to perform line maintenance.

[0024] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A method for online monitoring of power lines in a natural gas pipeline network, characterized in that: The following steps are involved: Step S1: Set the key nodes of the power line where the natural gas pipeline network is located, and deploy several types of sensors at the key nodes of the line, conduct communication sub-networking for all sensors belonging to each key node of the line, and then build a partition monitoring network to collect power-related data of each key node of the line; Step S2: Conduct communication parent networking for all the partition monitoring networks, and then build a natural gas pipeline network power integrated monitoring network, aggregate the power-related data of each key node of the line into the natural gas pipeline network power integrated monitoring network, and generate data streams after data processing and upload them to the pipeline network maintenance center; Step S3: After the pipeline maintenance center parses and restores the data stream, it compares it with the preset condition threshold to determine the line segments with abnormal operating status in the current natural gas pipeline network, and generates corresponding warning information to notify the operation and maintenance personnel to perform line maintenance.

2. The method for online monitoring of power lines in a natural gas pipeline network according to claim 1, characterized in that: The process of setting the key nodes of the power line where the natural gas pipeline network is located and deploying several types of sensors at the key nodes of the line includes: The power line where the natural gas pipeline network is located is connected to several power consumption units, and the connection points between the power consumption units and the power line where the natural gas pipeline network is located are marked as key line nodes. The key line nodes are numbered and recorded as i, i = 1, 2, 3, ..., n, where n is a natural number greater than 0; Several types of sensors are deployed at each key node of the line, and it is determined whether each type of sensor is in normal working condition; if so, no operation is performed; if not, a certain type of sensor that is not in normal working condition is debugged until the sensor is in normal working condition; when each type of sensor corresponding to the key node of the line is in normal working condition, the sensor deployment at the current key node of the line is completed, and then the sensor deployment at all key nodes of the line is completed.

3. The method for online monitoring of power lines in a natural gas pipeline network according to claim 2, characterized in that: The process of establishing a communication sub-network for all sensors belonging to each key node of each line and then building a partition monitoring network to collect power-related data of each key node of each line includes: Take any type of sensor in each key node of the line as the networking center device, and the networking center device builds the networking request link corresponding to the communication sub-network, obtains the communication IP of the networking center device, and the networking center device sends the networking request link with its own communication IP to the sensors of other non-networking center devices under the key node of the current line, and the sensor receives the networking request link and the communication IP of the networking center device, thereby building a point-to-point communication between the networking center device and the current sensor; For all sensors at each key node of each line, when each sensor completes point-to-point communication with the networking center device, a partition monitoring network corresponding to the current key node of the line is constructed, and the partition monitoring network collects power-related data at each corresponding key node of the line. The power-related data includes working voltage, working current and working temperature; The operating voltage, operating current and operating temperature corresponding to the key line node numbered i are identified as V[i], A[i] and C[i] respectively, where i is the number corresponding to the key line node and serves as the unique identity of the key line node.

4. The method for online monitoring of power lines in a natural gas pipeline network according to claim 3, characterized in that: The process of networking all the partition monitoring networks and then building a comprehensive monitoring network for natural gas pipelines and power grids includes: Obtain the node map coordinates of the key nodes of the lines corresponding to several partition monitoring networks. The node map coordinates are used to indicate the geographical location of the key nodes of the lines. Deploy the server side and configure the operating environment of the server side. Each partition monitoring network constructs a networking request for the parent network of communication and carries the node coordinate map of the key nodes of the lines corresponding to itself, and sends it to the server side together with the networking request. Determine whether the server is in a safe operation state; When the server is in a safe state, the server receives the networking requests of all sub-area monitoring networks. After all the networking requests are reviewed and approved, the communication parent networking is completed, and then the natural gas pipeline network and power comprehensive monitoring network are constructed; if there is a networking request of a sub-area monitoring network that fails to pass the review, the corresponding networking request that fails to pass the review is returned to the corresponding sub-area monitoring network, and the sub-area monitoring network reconstructs the networking request and sends it to the server; When the server is not in a safe operation state, the partition monitoring network will not receive the corresponding networking request, and the server's operating environment will be reconfigured until the server is in a safe operation state again, and then the network request will continue to be received.

5. The method for online monitoring of power lines in a natural gas network according to claim 4, characterized in that: The process of aggregating the power-related data of each key node of each line into the natural gas pipeline power integrated monitoring network and generating data streams after data processing and uploading them to the pipeline maintenance center includes: The natural gas pipeline network power integrated monitoring network creates several temporary memory spaces, aggregates and uploads the power-related data of each key node of each line to the natural gas pipeline network power integrated monitoring network, and allocates an unused temporary memory space to store the power-related data until the power-related data of all key nodes of the line are stored in the temporary memory space; During the set data processing period, load the power-related data stored in each temporary memory space in the natural gas pipeline power integrated monitoring network, define the data stream format of the power-related data, convert the power-related data into a data sequence byte stream through the serialization library, and mark the node map coordinates corresponding to each key node of the line to the corresponding data sequence byte stream, thereby generating a data stream of power-related data corresponding to each key node of the line; Build a data transmission channel between the natural gas pipeline power comprehensive monitoring network and the pipeline network maintenance center, enter the data stream generated by the power-related data of each key node of the line after data processing is completed into the data transmission channel, and upload all data streams to the pipeline network maintenance center through the data transmission channel.

6. The method for online monitoring of power lines in a natural gas pipeline network according to claim 5, characterized in that: After the pipeline network maintenance center parses and restores the data stream, it compares it with the preset condition threshold to determine the line segment with abnormal operation status in the current natural gas pipeline network. The process includes: The data stream of each key node of each line is analyzed and restored in turn, and the original power-related data corresponding to each key node of the line is obtained at the pipeline network maintenance center; The preset conditional thresholds include a current critical threshold corresponding to the working current, a voltage critical threshold corresponding to the working voltage, and a temperature critical threshold corresponding to the working temperature, and the current critical threshold, the voltage critical threshold, and the temperature critical threshold are respectively denoted as A-max, V-max, and C-max; Compare the power-related data of each key node of the line with the condition threshold; When A[i]≥A-max, or V[i]≥V-max, or C[i]≥C-max, it is judged that the operating status of the line segment corresponding to the corresponding numbered line key node in the natural gas pipeline network is abnormal; otherwise, it is judged that there is no abnormality in the operating status of the line segment corresponding to the corresponding line key node.

7. The method for online monitoring of power lines in a natural gas pipeline network according to claim 6, characterized in that: The process of generating corresponding warning information to notify operation and maintenance personnel to perform line maintenance includes: When a line segment with an abnormal operating status is monitored in the natural gas pipeline network, early warning information of the corresponding line segment is generated, and the node map coordinates corresponding to the line segment with an abnormal operating status are sent to the power line administrator, who inputs the current node map coordinates into the personnel database. The personnel database matches the operation and maintenance personnel who are closest to the current node map coordinates. The operation and maintenance personnel receive the early warning information and perform line maintenance on the line segment with an abnormal operating status in the power line where the current natural gas pipeline network is located.

8. An online monitoring system for power lines of a natural gas pipeline network, used to implement the online monitoring method according to any one of claims 1 to 7, characterized in that: The system includes: The power-related data collection module sets the key nodes of the power line where the natural gas pipeline network is located, and deploys several types of sensors at the key nodes of the line, and conducts communication sub-networking for all sensors belonging to each key node of the line, and then builds a partition monitoring network to collect power-related data of each key node of the line; The power-related data processing module conducts communication parent networking for all the partition monitoring networks, and then builds a natural gas pipeline network power comprehensive monitoring network, aggregates the power-related data of each key node of the line into the natural gas pipeline network power comprehensive monitoring network, and generates data streams after data processing and uploads them to the pipeline network maintenance center; The line anomaly monitoring module, after the pipeline maintenance center parses and restores the data stream, compares it with the preset condition threshold, determines the line section with abnormal operating status in the current natural gas pipeline network, and generates corresponding early warning information to notify the operation and maintenance personnel to perform line maintenance.

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