A method, system and computer equipment for monitoring hazardous gases in pipelines

Abstract

This application relates to a method, system, and computer equipment for monitoring hazardous gases in pipelines, belonging to the field of gas monitoring technology. The monitoring method includes acquiring basic information of monitoring boxes and creating at least one association network based on the basic information; acquiring gas monitoring signals returned by each monitoring box; identifying monitoring boxes whose gas monitoring signals are within a preset alarm threshold range as key monitoring boxes in response to the gas monitoring signals being within the preset alarm threshold range; filtering key monitoring boxes in the same association network to obtain alarm monitoring boxes; generating alarm information for alarm monitoring boxes in each association network and outputting the alarm information of the alarm monitoring boxes while simultaneously blocking the alarm information of other key monitoring boxes. This method can accurately send alarm information to personnel while minimizing the risk of information overflow caused by excessive alarm information received by personnel. This application facilitates timely response to alarm information by personnel.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gas monitoring, in particular to a pipeline dangerous gas monitoring method, system and computer equipment. BACKGROUND

[0002] In order to meet the needs of human life, various transportation pipelines such as power pipelines, communication pipelines, gas pipelines, water supply pipelines and drainage pipelines are laid through buried pipelines. Some pipelines, such as gas pipelines or drainage pipelines, usually contain some dangerous gases. In order to reduce safety hazards, the pipelines containing dangerous gases usually need to be monitored.

[0003] At present, the pipeline monitoring of dangerous gases usually adopts the method of laying monitoring boxes on the pipelines. The monitoring boxes include various dangerous gas sensors, wireless communication positioning devices, gas detection modules and control mainboards, so as to realize timely monitoring of the gases in the pipelines and timely output of alarm signals when abnormalities occur, so that the staff can timely repair the pipelines with abnormal monitoring boxes. However, due to the strong correlation of the pipelines, sometimes the same cause may cause multiple monitoring boxes to simultaneously appear abnormal and alarm, so that the staff receives a large amount of alarm information in a short time. The staff needs to pay attention to screening a large amount of alarm information and then take corresponding repair measures, which leads to slow response of the staff to the abnormal situation of gas monitoring. SUMMARY

[0004] In order to facilitate the staff to timely respond when the gas monitoring appears abnormal, the present application provides a pipeline dangerous gas monitoring method, system and computer equipment.

[0005] In the first aspect, the present application provides a pipeline dangerous gas monitoring method, which adopts the following technical scheme:

[0006] A pipeline dangerous gas monitoring method comprises:

[0007] Obtaining the basic information of the monitoring boxes and creating at least one associated network according to the basic information; the associated network comprises a plurality of monitoring boxes;

[0008] Obtaining the gas monitoring signals returned by each monitoring box;

[0009] In response to the gas monitoring signals being within the preset alarm threshold range, taking the monitoring boxes with the gas monitoring signals within the preset alarm threshold range as key monitoring boxes;

[0010] Screening the key monitoring boxes in the same associated network to obtain alarm monitoring boxes;

[0011] The alarm information of the alarm monitoring box in each association network is generated and output, and the alarm information of the rest key monitoring boxes is shielded.

[0012] By adopting the above technical solutions, the association network is created based on the basic information of the monitoring box, and the monitoring box with the gas monitoring signal within the preset alarm threshold range is regarded as the key monitoring box. Since the multiple monitoring boxes in the same association network are associated, the alarm monitoring box is selected from the key monitoring boxes, and only the alarm information of the alarm monitoring box is output, and the alarm information of the rest key sampling boxes is shielded. Thus, on the one hand, the alarm information can be accurately sent to the staff, and on the other hand, the staff is not easy to receive too much alarm information to cause information overflow, so that the staff can respond to the alarm information in time.

[0013] Optionally, the association network includes a location relationship network, a connection relationship network, and a primary and secondary relationship network; and the basic information includes positioning coordinates, serial number information, and basic information of a belonging pipeline of the monitoring box.

[0014] The positioning coordinates are used to create the location relationship network of the monitoring box; the serial number information is used to create the connection relationship network of the monitoring box; and the basic information of the belonging pipeline is used to create the primary and secondary relationship network.

[0015] By adopting the above technical solutions, the positioning coordinates, the serial number information, and the basic information of the belonging pipeline are used to facilitate the creation of the location relationship network, the connection relationship network, and the primary and secondary relationship network. The location relationship network, the connection relationship network, and the primary and secondary relationship network are associated. When one monitoring box in the location relationship network, the connection relationship network, or the primary and secondary relationship network is abnormal, multiple monitoring boxes may have a chain reaction and all appear abnormal. By establishing different types of association networks, the monitoring of the monitoring box is more convenient.

[0016] Optionally, the gas monitoring signal includes one or more of the concentration, the pressure, the gas temperature, and the flow rate of multiple dangerous gases.

[0017] By adopting the above technical solutions, the gas in the pipeline is monitored from multiple angles, so that the monitoring result is more accurate and comprehensive.

[0018] Optionally, if the association network is the connection relationship network, the key monitoring boxes in the same association network are screened to obtain the alarm monitoring box, and the screening specifically includes:

[0019] According to the serial number information, a node interval of adjacent key monitoring boxes in the connection relationship network is obtained; and the node interval is the number of intervals of other monitoring boxes.

[0020] If the node interval is greater than or equal to a preset interval, the adjacent two key monitoring boxes are both regarded as the alarm monitoring box.

[0021] If the node interval is less than the preset interval, the key monitoring box with a more serious abnormality degree of the gas monitoring signal among the two adjacent key monitoring boxes is taken as the alarm monitoring box.

[0022] By using the above technical solution, the node interval of the adjacent key monitoring boxes in the connected relationship network is analyzed. When the node interval is greater than or equal to the preset interval, it is indicated that there are multiple monitoring boxes without abnormality between the two adjacent key monitoring boxes. At this time, the two adjacent key monitoring boxes may cause abnormality of the gas monitoring signal due to different reasons, so the two adjacent key monitoring boxes are taken as the alarm monitoring boxes, which avoids the missing report of the alarm information to a certain extent. Conversely, when the node interval is less than the preset interval, the possibility of abnormality of the two adjacent key monitoring boxes caused by the same reason is larger. At this time, the key monitoring box with a more serious abnormality degree of the gas monitoring signal among the two adjacent key monitoring boxes is taken as the alarm monitoring box, which facilitates the staff to quickly locate the key monitoring box with a more serious abnormality of the gas monitoring signal.

[0023] Optionally, if the association network is a position relationship network, the key monitoring boxes in the same association network are screened to obtain the alarm monitoring boxes, and the screening specifically includes:

[0024] According to the positioning coordinates, it is judged whether the distance between the key monitoring boxes in the position relationship network is less than the preset distance. If yes, the key monitoring box with a more serious abnormality degree of the gas monitoring signal among the multiple key monitoring boxes is taken as the alarm monitoring box. If no, the corresponding key monitoring boxes are all taken as the alarm monitoring boxes.

[0025] By using the above technical solution, the positioning coordinates in the position relationship network reflect the specific geographical position of the key monitoring box. When the regional geological disaster, weather or construction influence occurs, the gas monitoring signal returned by the key monitoring box in the corresponding area is prone to abnormality, which has relevance. If the distance between the key monitoring boxes in the position relationship network exceeds the preset distance, the relevance is weak. At this time, the corresponding key monitoring boxes are all taken as the alarm monitoring boxes, so that the screening of the key monitoring boxes in the position relationship network is realized.

[0026] Optionally, if the association network is a primary-secondary relationship network, the key monitoring boxes in the same association network are screened to obtain the alarm monitoring boxes, and the screening specifically includes:

[0027] According to the basic information of the belonging pipeline, the key monitoring box located at the main pipeline in the primary-secondary relationship network is taken as the alarm monitoring box.

[0028] By adopting the technical scheme, if the key monitoring box of the main pipeline in the primary-secondary relationship network has abnormal gas monitoring signal, the pipeline at the key monitoring box will easily affect the secondary pipeline if not handled in time, so the key monitoring box of the main pipeline is taken as an alarm monitoring box to facilitate the staff to handle in time.

[0029] Optionally, the method further comprises:

[0030] The alarm monitoring boxes screened from the plurality of associated networks are determined whether to be repeated, and if yes, the repeated alarm monitoring boxes are marked.

[0031] By adopting the technical scheme, when the same alarm monitoring box is screened from the plurality of associated networks, the abnormal degree of the pipeline at the alarm monitoring box is usually more serious, and the alarm monitoring box is marked to facilitate the staff to quickly locate the alarm monitoring box with more serious problems.

[0032] In the second aspect, the present application provides a pipeline dangerous gas monitoring system, adopting the following technical scheme:

[0033] The associated network creation module is configured to acquire the basic information of the monitoring boxes and create at least one associated network according to the basic information; the associated network comprises a plurality of monitoring boxes;

[0034] The monitoring signal acquisition module is configured to acquire the gas monitoring signal returned by each monitoring box;

[0035] The first screening module is configured to, in response to the gas monitoring signal being within the preset alarm threshold range, take the monitoring box with the gas monitoring signal within the preset alarm threshold range as a key monitoring box;

[0036] The second screening module is configured to screen the key monitoring boxes in the same associated network to obtain alarm monitoring boxes;

[0037] The alarm information generation module is configured to generate the alarm information of the alarm monitoring boxes in each associated network and output the alarm information of the alarm monitoring boxes, while shielding the alarm information of the remaining key monitoring boxes.

[0038] In the third aspect, the present application provides a computer device, adopting the following technical scheme:

[0039] The computer device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program of any one of the above methods.

[0040] In the fourth aspect, the present application provides a computer readable storage medium, adopting the following technical scheme:

[0041] A computer readable storage medium comprising a computer program stored therein, the computer program being loadable into a processor and capable of executing any of the methods described above. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 is a flow chart of a dangerous gas monitoring method according to an embodiment of the present application.

[0043] Figure 2 is a flow chart of a method for screening an alarm monitoring box in a communication relationship network according to an embodiment of the present application.

[0044] Figure 3 is a flow chart of a method for screening an alarm monitoring box in a position relationship network according to an embodiment of the present application.

[0045] Figure 4 is a block diagram of a dangerous gas monitoring system according to an embodiment of the present application. DETAILED DESCRIPTION

[0046] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0047] An embodiment of the present application discloses a pipeline dangerous gas monitoring method. Referring to Figure 1 A pipeline dangerous gas monitoring method, comprising:

[0048] Step S101: Obtain the basic information of the monitoring box, and create at least one association network according to the basic information.

[0049] The association network comprises a plurality of monitoring boxes.

[0050] Specifically, the association network comprises a position relationship network, a communication relationship network and a primary-secondary relationship network; the basic information comprises the positioning coordinates of the monitoring box, serial number information and the basic information of the belonging pipeline; wherein the positioning coordinates are the position coordinates of the monitoring box, used to create the position relationship network of the monitoring box; the serial number information is the continuous arrangement number of the monitoring box in the same pipeline, used to create the communication relationship network of the monitoring box; and the basic information of the belonging pipeline comprises the pipeline name and the pipeline identifier, the pipeline identifier comprising the primary pipeline and the secondary pipeline, used to create the primary-secondary relationship network. The positioning coordinates, the serial number information and the basic information of the belonging pipeline facilitate the creation of the position relationship network, the communication relationship network and the primary-secondary relationship network, and the position relationship network, the communication relationship network and the primary-secondary relationship network are all associated. When one monitoring box in the position relationship network, the communication relationship network or the primary-secondary relationship network is abnormal, multiple monitoring boxes may all be abnormal due to the chain reaction. By establishing different types of association networks, the monitoring of the monitoring box is more convenient.

[0051] Step S102: obtaining the gas monitoring signal returned by each monitoring box;

[0052] The gas monitoring signal includes one or more of the concentration, pressure, gas temperature and flow rate of the dangerous gas. The gas in the pipeline is monitored from multiple angles, so that the monitoring result is more accurate and comprehensive.

[0053] It should be understood that the type of gas monitoring signal can be selected according to actual needs. The dangerous gas can be biogas, methane CH4, hydrogen sulfide H2S, carbon monoxide CO, ammonia NH3, and carbon dioxide CO2, etc.

[0054] Step S103: in response to the gas monitoring signal being within the preset alarm threshold range, taking the monitoring box with the gas monitoring signal within the preset alarm threshold range as a key monitoring box;

[0055] It should be understood that since there are multiple types of gas monitoring signals, a corresponding preset alarm threshold needs to be set for each type of gas monitoring signal. For example, when the gas monitoring signal is the concentration of the dangerous gas, the preset alarm threshold can be set as a concentration interval, and the specific value of the concentration interval is determined by the type of dangerous gas.

[0056] Step S104: screening the key monitoring boxes in the same associated network to obtain an alarm monitoring box;

[0057] Step S105: generating alarm information of the alarm monitoring box in each associated network and outputting the alarm information of the alarm monitoring box, while shielding the alarm information of the remaining key monitoring boxes.

[0058] It should be noted that since the gas monitoring signal of the key monitoring box is already within the preset alarm threshold range, the alarm information of the key monitoring box is usually outputted. However, in this embodiment, the alarm information of the key monitoring box is not sent to the worker, that is, the worker can only receive the alarm information of the alarm monitoring box, thereby greatly reducing the amount of alarm information that the worker needs to process.

[0059] Further, for the gas monitoring signal of the key monitoring box, since the gas monitoring signal of the key monitoring box is within the preset alarm threshold range, it indicates that the pipeline at the key monitoring box also has an abnormality. At this time, the gas monitoring signal of the key monitoring box can be generated into a monitoring analysis report, and the monitoring analysis report is sent to the worker, so that the worker can more accurately understand the pipeline monitoring situation.

[0060] In the above embodiment, the associated network is created based on the monitoring box basic information, and the monitoring box with the gas monitoring signal within the preset alarm threshold range is taken as the key monitoring box. Since the multiple monitoring boxes in the same associated network have certain association, the alarm monitoring box is selected from the key monitoring boxes, and only the alarm information of the alarm monitoring box is output, and the alarm information of the remaining key sampling boxes is shielded. Thus, on the one hand, the alarm information can be accurately sent to the staff, and on the other hand, the staff is not easy to receive too much alarm information to cause information overflow, so that the staff can respond to the alarm information in time.

[0061] As an embodiment of step S104, if the associated network is a connected relationship network, step S104 specifically includes:

[0062] Step S1041: According to the serial number information, the node interval of the adjacent key monitoring boxes in the connected relationship network is obtained.

[0063] It should be understood that since the serial number information is the continuous arrangement number of the monitoring boxes in the same pipeline, that is, all the monitoring boxes with serial number information in the same pipeline have a connected relationship, the monitoring boxes in the same pipeline can be created into a connected relationship network according to the serial number information.

[0064] Wherein, the node interval is the number of intervals of other monitoring boxes, and the other monitoring boxes are the monitoring boxes in the same connected relationship network except the key monitoring boxes. By the size difference of the serial number information of the monitoring boxes in the same pipeline, the node interval can be calculated. For example, the serial number information of the adjacent key monitoring boxes in the connected relationship network is serial number 5 and serial number 8 respectively. At this time, it can be known that the adjacent key monitoring boxes also include the monitoring boxes with serial number information of serial number 6 and serial number 7. At this time, the node interval is 2, that is, the above two adjacent key monitoring boxes are separated by two other monitoring boxes.

[0065] Step S1042: If the node interval is greater than or equal to the preset interval, the adjacent two key monitoring boxes are taken as alarm monitoring boxes.

[0066] Step S1043: If the node interval is less than the preset interval, the key monitoring box with a more serious abnormal degree of gas monitoring signal is taken as the alarm monitoring box from the adjacent two key monitoring boxes.

[0067] In the above embodiment, the node interval of the adjacent key monitoring boxes in the obtained communication relationship network is analyzed. When the node interval is greater than or equal to the preset interval, it is indicated that there are multiple monitoring boxes without abnormal conditions between the two adjacent key monitoring boxes. At this time, the two adjacent key monitoring boxes may cause abnormal gas monitoring signals due to different reasons, and therefore the two adjacent key monitoring boxes are both regarded as alarm monitoring boxes, which avoids the missing alarm information to some extent. Conversely, when the node interval is less than the preset interval, the two adjacent key monitoring boxes are more likely to cause abnormality due to the same reason. At this time, the key monitoring box with more serious abnormal gas monitoring signal among the two adjacent key monitoring boxes is regarded as the alarm monitoring box, so that the staff can quickly locate the key monitoring box with more serious abnormal gas monitoring signal.

[0068] As another embodiment of step S104, if the association network is a position relationship network, step S104 specifically includes:

[0069] Step S1044: According to the positioning coordinates, it is judged whether the distance between the key monitoring boxes in the position relationship network is less than the preset distance. If yes, step S1045 is executed, and if no, step S1046 is executed.

[0070] Specifically, before step S1044, the creation of the position relationship network is further included. The position relationship network can be created by dividing the preset area. As a possible division implementation of the position relationship network, the position relationship network can be divided according to the administrative region, so as to facilitate each administrative region to manage the pipeline in the respective region. The position relationship network can also be unevenly divided according to the population distribution density, that is, the region with greater population distribution density (for example, residential buildings, schools, etc.) can have a smaller position relationship network range, so as to more carefully monitor the region.

[0071] Step S1045: The key monitoring box with more serious abnormal gas monitoring signal among the multiple key monitoring boxes is regarded as the alarm monitoring box.

[0072] The abnormality degree of the gas monitoring signal is the percentage of the gas monitoring signal exceeding the preset alarm range threshold.

[0073] Step S1046: The corresponding key monitoring boxes are both regarded as alarm monitoring boxes.

[0074] In the above embodiment, the positioning coordinates in the position relationship network reflect the specific geographic positions of the key monitoring boxes. When the regional geological disasters, weather or construction have an impact, the gas monitoring signals returned by the key monitoring boxes in the corresponding regions are prone to be abnormal, and have relevance. If the distance between the key monitoring boxes in the position relationship network exceeds the preset distance, the relevance is weak. At this time, the corresponding key monitoring boxes are all regarded as alarm monitoring boxes, so that the screening of the monitoring boxes in the position relationship network is realized.

[0075] As another embodiment of step S104, if the correlation network is a primary-secondary relationship network, step S104 specifically includes:

[0076] According to the basic information of the pipeline, the key monitoring boxes located on the main pipeline in the primary-secondary relationship network are regarded as alarm monitoring boxes.

[0077] Specifically, it further includes creating a primary-secondary relationship network. As a possible implementation manner of creating a primary-secondary relationship network, the tags of the monitoring boxes are set by using the basic information of the pipeline. The tags of the monitoring boxes include one or more main pipeline tags, one or more secondary pipeline tags, and a primary-secondary connection relationship. The primary-secondary relationship network is created according to the tags of the monitoring boxes. Thus, whether the key monitoring boxes are located on the main pipeline can be judged by using the tags of the monitoring boxes in the primary-secondary relationship network, and then the key monitoring boxes located on the main pipeline in the primary-secondary relationship network are regarded as alarm monitoring boxes.

[0078] In the above embodiment, if the key monitoring box in the primary-secondary relationship network has an abnormal gas monitoring signal on the main pipeline, if the pipeline at the key monitoring box is not handled in time, it is easy to affect the secondary pipeline. Therefore, the key monitoring box on the main pipeline is regarded as an alarm monitoring box so that the staff can handle it in time.

[0079] It should be noted that the same monitoring box can belong to different correlation networks, for example, the same monitoring box can belong to a position relationship network and a primary-secondary relationship network at the same time. This is because different correlation networks can divide the monitoring boxes from multiple angles.

[0080] Based on this, as a further embodiment of the pipeline dangerous gas monitoring method, the pipeline dangerous gas monitoring method further includes:

[0081] It is judged whether the alarm monitoring boxes screened in the plurality of correlation networks are repeated. If so, the repeated alarm monitoring boxes are marked.

[0082] In the above embodiment, when the same alarm monitoring box is screened in the plurality of correlation networks, the abnormality degree of the pipeline at the alarm monitoring box is usually more serious at this time. The alarm monitoring box is marked so that the staff can quickly locate the alarm monitoring box with more serious problems.

[0083] The embodiment of the present application discloses a pipeline dangerous gas monitoring system. Referring to Figure 4 The pipeline dangerous gas monitoring system comprises:

[0084] An association network creating module is configured to acquire basic information of the monitoring boxes and create at least one association network according to the basic information; the association network comprises a plurality of monitoring boxes.

[0085] A monitoring signal acquiring module is configured to acquire the gas monitoring signal returned by each monitoring box.

[0086] A first screening module is configured to, in response to the gas monitoring signal being within a preset alarm threshold range, screen the monitoring boxes whose gas monitoring signals are within the preset alarm threshold range as key monitoring boxes.

[0087] A second screening module is configured to screen the key monitoring boxes in the same association network to obtain alarm monitoring boxes.

[0088] An alarm information generating module is configured to generate alarm information of the alarm monitoring boxes in each association network and output the alarm information of the alarm monitoring boxes, while shielding the alarm information of the rest key monitoring boxes.

[0089] The pipeline dangerous gas monitoring system provided by the present application can implement the above-mentioned pipeline dangerous gas monitoring method, and the specific working process of the pipeline dangerous gas monitoring system can refer to the corresponding process in the above-mentioned method embodiment.

[0090] It should be noted that, in the above-mentioned embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0091] Based on the same technical concept, the present application further discloses a computer device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor executes the computer program of any one of the above-mentioned methods.

[0092] The present application further discloses a computer readable storage medium, a computer readable storage medium comprising a computer program capable of being loaded and executed by a processor to execute any one of the above-mentioned methods.

[0093] In the embodiments of the present application, it should be understood that the disclosed apparatus and method can be implemented in other manners. The embodiments described above are merely exemplary, for example, the division of the units is only a logical function division, and there can be another division manner in actual implementation; for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, devices or units, and can be in electrical, mechanical or other forms.

[0094] In addition, each functional module in each embodiment of the present application can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0095] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any feature disclosed in the specification (including the abstract and drawings) can be replaced by other equivalent or similar features unless specifically stated. That is, each feature is only an example of a series of equivalent or similar features unless specifically stated.

Claims

1. A method of monitoring a hazardous gas in a pipe, characterized by, The method comprises the following steps: obtaining basic information of the monitoring boxes and creating at least one associated network according to the basic information; the associated network comprises a plurality of monitoring boxes; obtaining a gas monitoring signal returned by each monitoring box; in response to the gas monitoring signal being within a preset alarm threshold range, taking the monitoring box whose gas monitoring signal is within the preset alarm threshold range as a key monitoring box; screening the key monitoring boxes in the same associated network to obtain an alarm monitoring box; generating alarm information of the alarm monitoring box in each associated network and outputting the alarm information of the alarm monitoring box, while shielding alarm information of the remaining key monitoring boxes.

2. The method of claim 1, wherein, The associated network comprises a location relationship network, a connection relationship network and a primary and secondary relationship network; the basic information comprises positioning coordinates, serial number information and basic information of a pipeline to which the monitoring box belongs of the monitoring box; wherein the positioning coordinates are used to create the location relationship network of the monitoring box; the serial number information is used to create the connection relationship network of the monitoring box; and the basic information of the pipeline to which the monitoring box belongs is used to create the primary and secondary relationship network.

3. The method of claim 2, wherein, The gas monitoring signal comprises one or more of the concentration, pressure, gas temperature and flow rate of a plurality of dangerous gases.

4. The method of claim 2, wherein, If the associated network is the connection relationship network, the screening of the key monitoring boxes in the same associated network to obtain the alarm monitoring box specifically comprises: obtaining a node interval of adjacent key monitoring boxes in the connection relationship network according to the serial number information; the node interval is the number of intervals of other monitoring boxes; if the node interval is greater than or equal to a preset interval, taking both adjacent key monitoring boxes as alarm monitoring boxes; if the node interval is less than the preset interval, taking a key monitoring box with a more serious abnormality degree of the gas monitoring signal as an alarm monitoring box.

5. The method of claim 2, wherein, If the associated network is the location relationship network, the screening of the key monitoring boxes in the same associated network to obtain the alarm monitoring box specifically comprises: judging whether the distance between the key monitoring boxes in the location relationship network is less than a preset distance according to the positioning coordinates; if yes, taking a key monitoring box with a more serious abnormality degree of the gas monitoring signal among the plurality of key monitoring boxes as an alarm monitoring box; if no, taking the corresponding key monitoring boxes as alarm monitoring boxes.

6. The method of claim 2, wherein, If the associated network is the primary and secondary relationship network, the screening of the key monitoring boxes in the same associated network to obtain the alarm monitoring box specifically comprises: according to the basic information of the pipeline to which the monitoring box belongs, taking a key monitoring box located at a main pipeline in the primary and secondary relationship network as an alarm monitoring box.

7. The method of claim 1, wherein, The method further comprises the following steps: judging whether the alarm monitoring boxes obtained by screening in the plurality of associated networks are repeated; if yes, marking the repeated alarm monitoring boxes.

8. A pipeline hazardous gas monitoring system, characterized by, The method comprises the following steps: an associated network creation module is configured to obtain basic information of the monitoring boxes and create at least one associated network according to the basic information; the associated network comprises a plurality of monitoring boxes; a monitoring signal acquisition module is configured to obtain a gas monitoring signal returned by each monitoring box; a first screening module is configured to, in response to the gas monitoring signal being within a preset alarm threshold range, take the monitoring box whose gas monitoring signal is within the preset alarm threshold range as a key monitoring box; a second screening module is configured to screen the key monitoring boxes in the same associated network to obtain an alarm monitoring box; The alarm information generation module is configured to generate alarm information of the alarm monitoring box in each associated network and output the alarm information of the alarm monitoring box while shielding alarm information of the rest of the key monitoring boxes.

9. A computer device, characterized by: A computer program product comprising a memory, a processor, and a computer program stored on the memory and loadable on the processor, the processor being configured to execute the computer program of any of claims 1-7.

10. A computer-readable storage medium, characterized in that: A computer program product comprising a memory, a processor, and a computer program stored on the memory and loadable on the processor, the processor being configured to execute the computer program of any of claims 1-7.

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