A combustible gas monitoring system based on 5G campus edge computing

Abstract

This invention relates to a combustible gas monitoring system based on 5G campus edge computing. The system includes: multiple gas collection terminals, multiple handheld inspection terminals, multiple location identification terminals, a 5G base station, a campus user plane gateway, and a campus edge computing server. The combustible gas monitoring system is deployed within a designated first campus and connected to the 5G core network. This invention improves the deployment flexibility of gas collection terminals, reduces data latency, and enables timely acquisition of real-time detection information from each monitoring point.

Description

Technical Field

[0001] This invention relates to the field of data processing technology, and in particular to a combustible gas monitoring system based on 5G campus edge computing. Background Technology

[0002] Monitoring combustible gases in industrial parks or residential areas that use natural gas is a crucial aspect of park security. The traditional monitoring method involves patrol personnel using handheld gas detectors to conduct checks while patrolling, and then entering all recorded results into the patrol system's backend after each patrol. Clearly, this traditional method, limited by human factors, cannot obtain real-time monitoring information from each monitoring point in a timely manner. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a combustible gas monitoring system based on 5G campus edge computing. This system includes: multiple gas collection terminals, multiple handheld inspection terminals, multiple location identification terminals, a 5G base station, a campus user plane gateway, and a campus edge computing server. The system is deployed within a designated first campus and connected to the 5G core network. The 5G base station is connected to each gas collection terminal, each handheld inspection terminal, the campus user plane gateway, and the 5G core network. The campus user plane gateway and the campus edge computing server are connected via a dedicated line. The handheld inspection terminals are connected to the location identification terminals wirelessly. The system of this invention first uses the gas sampling terminal and the inspection handheld terminal as user equipment (UE) of the 5G network, the multi-access edge computing (MEC) server as the 5G network data network (DN) deployed in the park, and the user plane gateway of the park as the 5G network user plane gateway (UPF) deployed in the park. A local 5G network base station (also called a radio access network (R)AN) is set up in the park and connected to the 5G core network. The system is based on the Protocol Data Unit (PDU) used in the 5G network protocol to create session channels between UE network elements, (R)AN network elements, UPF network elements, and DN network elements. The PDU (Power Distribution Unit) session request processing mechanism creates a customized PDU session channel between each user terminal within the park and the park's edge computing server as the corresponding real-time data channel. Secondly, it configures real-time gas data detection and reporting, and local early warning processing procedures for each gas sampling terminal, and configures two types of inspection task processing procedures for each inspection handheld terminal: routine inspection and early warning inspection. Corresponding real-time gas data monitoring, early warning, routine inspection task deployment, and emergency early warning inspection task deployment processes are configured on the park's edge computing server. The 5G network of this invention eliminates the need for wired network deployment between the gas sampling terminal and the park's edge computing server, thereby improving the flexibility of gas sampling terminal deployment. The sunken 5G network deployment scheme of this invention ensures that the interactive data within the real-time data channel between the gas sampling terminal, inspection handheld terminal, and park edge computing server does not need to be forwarded via external networks or other networks, thereby reducing data latency. Through the processing procedures configured for each terminal and server, this invention enables timely acquisition of real-time detection information from each monitoring point and immediate activation of early warnings and dispatch of inspection personnel to the site in the event of a gas leak.

[0004] To achieve the above objectives, this invention provides a combustible gas monitoring system based on 5G campus edge computing. The system includes: multiple gas collection terminals, multiple inspection handheld terminals, multiple location identification terminals, a 5G base station, a campus user plane gateway, and a campus edge computing server. The combustible gas monitoring system is deployed in a designated first campus and connected to the 5G core network.

[0005] The 5G base station is connected to each of the gas collection terminals, each of the inspection handheld terminals, the park user plane gateway, and the 5G core network; the park user plane gateway and the park edge computing server are connected via dedicated lines; the inspection handheld terminals are connected to the location identification terminals via wireless connections; the wireless connection methods include RFID wireless communication, NFC wireless communication, WiFi wireless communication, and Bluetooth wireless communication.

[0006] The gas sampling terminal is used to create a customized data channel, referred to as the corresponding first data channel, between itself and the park edge computing server through the 5G base station and the park user plane gateway; the gas sampling terminal is also used to periodically collect and process combustible gas concentration to generate a corresponding first data packet, and send the first data packet to the park edge computing server through the first data channel; the gas sampling terminal is also used to receive a first local early warning instruction sent by the park edge computing server through the first data channel, and perform local early warning processing according to the first local early warning instruction; the gas sampling terminal is also used to perform local early warning cancellation processing when it receives a first local early warning cancellation instruction sent by the park edge computing server through the first data channel.

[0007] The inspection handheld terminal is used to create a customized data channel, referred to as the corresponding second data channel, between itself and the park edge computing server through the 5G base station and the park user plane gateway; the inspection handheld terminal is also used to receive a first inspection trajectory allocation instruction sent by the park edge computing server through the second data channel, and perform inspection task display processing according to the first inspection trajectory allocation instruction; the inspection handheld terminal is also used to coordinate with the location identification terminal to obtain inspection trajectory point information, generate a corresponding first inspection data packet, and send the first inspection data packet to the park edge computing server through the second data channel; the inspection handheld terminal is also used to receive a first emergency inspection task allocation instruction sent by the park edge computing server through the second data channel, and perform emergency inspection task display processing according to the first emergency inspection task allocation instruction; the inspection handheld terminal is also used to receive a first emergency inspection task cancellation instruction sent by the park edge computing server through the second data channel, and perform emergency inspection task cancellation processing according to the first emergency inspection task cancellation instruction.

[0008] The park edge computing server is used to allocate / cancel local early warning tasks and emergency inspection tasks based on the first data packets received by each of the gas acquisition terminals after establishing corresponding first data channels with each of the gas acquisition terminals; the park edge computing server is also used to allocate inspection trajectories when establishing corresponding second data channels with each of the inspection handheld terminals, and to monitor the location of park inspection personnel based on the first inspection data packets received by each of the second data channels.

[0009] Preferably, the first data acquisition packet includes a first timestamp, a first location identifier, and first acquisition data; the first acquisition data includes one or more first gas sensor data, and the first gas sensor data includes a first gas type and a first gas concentration;

[0010] The first local early warning instruction includes a first early warning level;

[0011] The first inspection trajectory allocation instruction includes a first inspection task trajectory; the first inspection task trajectory includes multiple first inspection trajectory point records; the first inspection trajectory point records include first trajectory point location identifiers and first trajectory point inspection time periods;

[0012] The first inspection data packet includes a second timestamp, a second location identifier, and first inspection information;

[0013] The first emergency inspection task allocation instruction includes a third timestamp, a third location identifier, a second warning level, and one or more first gas warning data; the first gas warning data includes a second gas type and a second gas concentration;

[0014] The first emergency inspection task cancellation instruction includes a fourth location identifier.

[0015] Preferably, the gas sampling terminal is specifically used to create a customized data channel between itself and the campus edge computing server through the 5G base station and the campus user plane gateway, by treating itself as a UE network element of the 5G network, the 5G base station as a (R)AN network element of the 5G network, the campus user plane gateway as a UPF network element of the 5G network, and the campus edge computing server as a DN network element connected to the UPF network element in the 5G network, and based on the PDU session request processing mechanism in the 5G network protocol for creating a session channel between the UE network element-(R)AN network element-UPF network element-DN network element, a customized PDU session channel is created between the current gas sampling terminal and the campus edge computing server as the corresponding first data channel;

[0016] The gas acquisition terminal is specifically used to, during the periodic combustible gas concentration acquisition process, collect gas concentration information of one or more specified combustible gases based on one or more built-in gas sensors at a preset first acquisition frequency to generate the corresponding first gas concentration; record the combustible gas type corresponding to each gas sensor as the corresponding first gas type; and combine the first gas type and the first gas concentration corresponding to each gas sensor to form the corresponding first gas sensor data; combine all the obtained first gas sensor data to form the corresponding first acquisition data; use the current terminal time as the corresponding first timestamp; extract the terminal location identifier of the local threshold as the corresponding first location identifier; and combine the obtained first timestamp, the first location identifier, and the first acquisition data to form the corresponding first acquisition data packet.

[0017] The gas acquisition terminal is specifically used to extract the corresponding first warning level from the first local warning command when performing local warning processing according to the first local warning command; and to identify the first warning level; if the first warning level is a level three warning level, then the built-in buzzer is invoked to sound a low-frequency, low-volume alarm and the built-in or external signal light is invoked to sound a low-frequency, flashing red light alarm; if the first warning level is a level two warning level, then the built-in buzzer is invoked to sound a high-frequency, high-volume alarm and the built-in or external signal light is invoked to sound a high-frequency, flashing red light alarm; if the first warning level is a level one warning level, then the built-in buzzer is invoked to sound a high-frequency, high-volume alarm and the built-in or external signal light is invoked to sound a high-frequency, flashing red light alarm, and at the same time, it identifies whether the current gas acquisition terminal is connected to one or more external gas valves, and if so, controls all connected external gas valves to close.

[0018] The gas acquisition terminal is specifically used to, during the local warning cancellation process, to turn off the built-in buzzer alarm and to turn off the built-in or external indicator light flashing alarm; and to identify whether the gas acquisition terminal is currently connected to one or more external gas valves. If so, it identifies whether all the external gas valves connected to the gas acquisition terminal are in a closed state. If so, it controls all the connected external gas valves to open.

[0019] Preferably, the inspection handheld terminal is specifically used to, when creating a customized data channel between itself and the campus edge computing server through the 5G base station and the campus user plane gateway, regard itself as a UE network element of the 5G network, the 5G base station as a (R)AN network element of the 5G network, the campus user plane gateway as a UPF network element of the 5G network, and the campus edge computing server as a DN network element connected to the UPF network element in the 5G network, and based on the PDU session request processing mechanism in the 5G network protocol for creating a session channel between the UE network element-(R)AN network element-UPF network element-DN network element, create a customized PDU session channel between the current inspection handheld terminal and the campus edge computing server as the corresponding second data channel;

[0020] The handheld inspection terminal is specifically used to: extract the corresponding first inspection task trajectory from the first inspection trajectory allocation instruction and store it locally as the latest first task trajectory data when performing inspection task display processing according to the first inspection trajectory allocation instruction; create a corresponding first visual trajectory route according to the latest first task trajectory data; create corresponding first visual trajectory points for each first inspection trajectory point record on the first visual trajectory route; create corresponding first visual prompt information on each first visual trajectory point; and query a preset first location information list according to the first trajectory point location identifier recorded for each first visual trajectory point, and extract the first location description field of the first location information record that matches the first trajectory point location identifier in the first location information list. The first location information is used as the corresponding first location description information; the first inspection time period of the first inspection trajectory point record corresponding to each first visual trajectory point is extracted as the corresponding first location inspection time information; and the corresponding first visual prompt information is set according to the first location description information and the first location inspection time information corresponding to each first visual trajectory point; and the trajectory route, trajectory points and trajectory point prompt information are displayed according to the set first visual trajectory route through the built-in display module; the first location information list includes multiple first location information records; the first location information record includes a first location identifier field and a first location description field; the first visual trajectory route includes multiple first visual trajectory points; each first visual trajectory point corresponds to one first visual prompt information;

[0021] Specifically, the handheld inspection terminal is used to send a first location identifier acquisition command to the location identifier terminal installed at the inspection location when generating a corresponding first inspection data packet by acquiring inspection trajectory point information in conjunction with the location identifier terminal; and to use the feedback data of the first location identifier acquisition command sent back by the current location identifier terminal as the corresponding second location identifier; and to use the current terminal time as the corresponding second timestamp; and to acquire the inspection record information input by the inspection personnel through the built-in information input module as the corresponding first inspection information; and to form the corresponding first inspection data packet by the obtained second timestamp, second location identifier and first inspection information.

[0022] The handheld inspection terminal is specifically used to extract the corresponding third timestamp, third location identifier, second warning level, and one or more first gas warning data composed of the second gas type and the second gas concentration from the first emergency inspection task allocation instruction when performing emergency inspection task display processing according to the first emergency inspection task allocation instruction; and to take the first visual trajectory point whose first trajectory point location identifier matches the third location identifier recorded by the first inspection trajectory point on the first visual trajectory route as the corresponding first emergency trajectory point; and to compose the corresponding first emergency task prompt information by the third timestamp, the second warning level, and one or more first gas warning data; and to highlight the first emergency trajectory point on the displayed first visual trajectory route through the built-in display module, and to add the corresponding first emergency task prompt information to the first visual prompt information corresponding to the highlighted first emergency trajectory point;

[0023] The handheld inspection terminal is specifically used to extract the corresponding fourth location identifier from the first emergency inspection task cancellation instruction when the emergency inspection task cancellation process is performed according to the first emergency inspection task cancellation instruction; and to take the first visual trajectory point whose first trajectory point location identifier matches the fourth location identifier on the first visual trajectory point record on the first visual trajectory route as the corresponding first emergency task cancellation trajectory point; and to unhighlight the first emergency task cancellation trajectory point on the displayed first visual trajectory route through the built-in display module, and delete all first emergency task prompt information from the first visual prompt information corresponding to the first emergency task cancellation trajectory point.

[0024] Preferably, the location identification terminal is used to send a locally preset terminal location identifier as the corresponding feedback data of the first location identification acquisition instruction to the inspection handheld terminal upon receiving the first location identification acquisition instruction sent by the inspection handheld terminal.

[0025] Preferably, the park edge computing server is used to store a first terminal information list, which records the terminal information of all the gas collection terminals installed in the first park, and a second terminal information list, which records the terminal information of all the inspection handheld terminals configured in the first park, through a local database or an external database.

[0026] The first terminal information list includes multiple first terminal information records; each first terminal information record corresponds one-to-one with a gas acquisition terminal; each first terminal information record includes a first terminal location identifier field, a first terminal location description field, a first terminal gas warning data field, a first terminal warning level field, and a first terminal historical warning information field; the first terminal gas warning data field includes one or more first-class gas warning data groups, each first-class gas warning data group including a first warning gas type, a first-level gas concentration threshold range, a second-level gas concentration threshold range, a third-level gas concentration threshold range, and a fourth-level gas concentration threshold range, with the gas concentration decreasing progressively in the first, second, third, and fourth-level gas concentration threshold ranges; the first terminal warning level field includes a first-level warning level, a second-level warning level, a third-level warning level, and a no-warning level, with the warning severity decreasing progressively in the first, second, and third-level warning levels; the first terminal historical warning information field includes multiple first terminal historical warning information entries;

[0027] The second terminal information list includes multiple second terminal information records; each second terminal information record corresponds one-to-one with the inspection handheld terminal; each second terminal information record includes a first terminal device identifier field, a first terminal inspection task trajectory field, a second terminal location identifier field, and a first terminal inspection information field; the first terminal inspection task trajectory field includes the first terminal inspection task trajectory; the first terminal inspection task trajectory includes multiple first inspection trajectory point records, each first inspection trajectory point record including the first trajectory point location identifier and the first trajectory point inspection time period; the first terminal inspection information field includes multiple first terminal inspection information records.

[0028] Preferably, the park edge computing server is specifically used to, when performing the allocation / cancellation processing of local early warning tasks and emergency inspection tasks based on the first acquisition data packets received from each of the first data channels, extract the corresponding first timestamp, first location identifier, and first acquisition data from the first acquisition data packets, and extract one or more corresponding first gas sensor data composed of the first gas type and the first gas concentration from the first acquisition data; and take the first data channel corresponding to the currently received first acquisition data packet as the corresponding current first data channel; take the first terminal information record in the first terminal information list whose first terminal location identifier field matches the first location identifier as the corresponding first record; calculate the corresponding first distance between the second terminal location identifier field of each second terminal information record in the second terminal information list and the first location identifier, and select the minimum value from all the obtained first distances as the corresponding first shortest distance, and take the second terminal information record corresponding to the first shortest distance as the corresponding second record; and take the second data channel of the inspection handheld terminal corresponding to the second record as the corresponding current second data channel.

[0029] Based on the one-to-one correspondence between the first gas type in the first gas sensor data and the first warning gas type in the first record, the first gas warning data group corresponding to each of the first gas sensor data in the first record is taken as the corresponding first matching data group; when the first gas concentration level corresponding to each of the first gas sensor data meets the first, second, third or fourth level gas concentration threshold range of the corresponding first matching data group, the corresponding first gas concentration level is set to the corresponding first level, second level, third level and fourth level, and the first level, second level, third level and fourth level decreases step by step; and the first gas type and first gas concentration of each of the first gas sensor data in the first collected data where the first gas concentration level is higher than the fourth level are extracted as the corresponding second gas type and second gas concentration to form the corresponding first gas warning data; and the highest level is selected from all the obtained first gas concentration levels as the corresponding first highest level.

[0030] When the first highest level is level one, level two, or level three, the timestamp of the latest first terminal historical warning information in the first recorded first terminal historical warning information field is extracted as the corresponding previous timestamp, and the time interval between the first timestamp and the previous timestamp is calculated to obtain the corresponding first time interval; when the first time interval is greater than a preset time interval threshold, the first terminal warning level field of the first recorded first terminal is set to the first, level two, or level three warning level corresponding to the first highest level, and the first highest level is used as the corresponding first and second warning levels, and the first timestamp and the first location identifier are used as the corresponding third timestamp and the third location identifier, and the obtained third timestamp, the third location identifier, the second warning level, and all the first gas warning data are combined to form new first terminal historical warning information and added to the first terminal historical warning information field of the first recorded first terminal, and the first local warning instruction carrying the first warning level is sent to the corresponding gas acquisition terminal through the current first data channel, and the first emergency inspection task allocation instruction carrying the third timestamp, the third location identifier, the second warning level, and all the first gas warning data is sent to the corresponding inspection handheld terminal through the current second data channel;

[0031] When the first highest level is level four, the first terminal warning level field of the first record is set to no warning level; the first local warning cancellation instruction is sent to the corresponding gas acquisition terminal through the current first data channel; the first location identifier is used as the corresponding fourth location identifier, and the first emergency inspection task cancellation instruction carrying the fourth location identifier is sent to the corresponding inspection handheld terminal through the current second data channel.

[0032] Preferably, the park edge computing server is specifically used to perform inspection trajectory allocation processing when the second data channel corresponding to each of the inspection handheld terminals has been established. Specifically, it takes the current inspection handheld terminal as the corresponding current terminal, the second data channel corresponding to the current terminal as the corresponding current channel, and the second terminal information record corresponding to the current terminal in the second terminal information list as the corresponding current record. It also extracts the first terminal inspection task trajectory from the first terminal inspection task trajectory field of the current record as the corresponding first inspection task trajectory. Furthermore, it sends the first inspection trajectory allocation instruction carrying the first inspection task trajectory to the current terminal through the current channel. Finally, it initializes the second terminal location identifier field of the current record to the first trajectory point location identifier recorded in the first first inspection trajectory point of the corresponding first terminal inspection task trajectory. Finally, it clears the first terminal inspection information field of the current record.

[0033] Preferably, the park edge computing server is specifically used to, when performing park inspection personnel location monitoring processing based on the first inspection data packets received from each of the second data channels, take the inspection handheld terminal corresponding to the current first inspection data packet as the corresponding current terminal, and take the second terminal information record corresponding to the current terminal in the second terminal information list as the corresponding current record; extract the corresponding second timestamp, second location identifier, and first inspection information from the first inspection data packet; update the second terminal location identifier field of the current record to the second location identifier, and add the first inspection information as new first terminal inspection information to the first terminal inspection information field of the current record; and dynamically refresh the inspection location of each inspection personnel in the first park according to the latest second terminal information list.

[0034] This invention provides a combustible gas monitoring system based on 5G campus edge computing. The system includes: multiple gas collection terminals, multiple inspection handheld terminals, multiple location identification terminals, a 5G base station, a campus user plane gateway, and a campus edge computing server. The system is deployed in a designated first campus and connected to the 5G core network. The 5G base station of the system is connected to each gas collection terminal, each inspection handheld terminal, the campus user plane gateway, and the 5G core network. The campus user plane gateway and the campus edge computing server are connected via a dedicated line. The inspection handheld terminals are connected to the location identification terminals wirelessly. The system of this invention first uses gas collection terminals and inspection handheld terminals as user terminals of a 5G network, a park edge computing server as a dedicated 5G network data network deployed to the park, and a park user plane gateway as a 5G network user plane gateway deployed to the park. A local 5G network base station is set up in the park and connected to the 5G core network. Based on the PDU session request processing mechanism in the 5G network protocol used to create session channels between UE network elements, (R)AN network elements, UPF network elements, and DN network elements, a customized PDU session channel is created between each user terminal in the park and the park edge computing server as the corresponding real-time data channel. Secondly, each gas collection terminal is configured with real-time gas data detection and reporting and local early warning processing procedures. Each inspection handheld terminal is configured with two inspection task processing procedures: regular inspection and early warning inspection. The corresponding real-time gas data monitoring, early warning, regular inspection task deployment, and emergency early warning inspection task deployment processing procedures are configured on the park edge computing server. The 5G network of this invention eliminates the need for wired network deployment between the gas sampling terminal and the park edge computing server, thereby improving the deployment flexibility of the gas sampling terminal. The recessed 5G network deployment scheme of this invention ensures that the interactive data between the gas sampling terminal, the inspection handheld terminal, and the park edge computing server in the real-time data channel does not require data forwarding via external networks or other networks, thus reducing data latency. The processing flow configured for each terminal and server in this invention allows for timely acquisition of real-time detection information from each monitoring point, and enables immediate activation of early warning and dispatch of inspection personnel to the scene in the event of a gas leak, thereby improving the sensitivity of combustible gas monitoring and the real-time response capability to gas leaks. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of a combustible gas monitoring system based on 5G campus edge computing, provided as an embodiment of the present invention. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0037] Figure 1 A schematic diagram of a combustible gas monitoring system based on 5G campus edge computing is provided as an embodiment of the present invention, as shown below. Figure 1 As shown, the combustible gas monitoring system 1 includes: multiple gas acquisition terminals 11, multiple inspection handheld terminals 12, multiple location identification terminals 13, a 5G base station 14, a campus user plane gateway 15, and a campus edge computing server 16.

[0038] Here, the combustible gas monitoring system 1 is deployed in the designated first park area and connected to the 5G core network 2. The 5G base station 14 is connected to each gas collection terminal 11, each inspection handheld terminal 12, the park user plane gateway 15, and the 5G core network 2 respectively; the park user plane gateway 15 and the park edge computing server 16 are connected via a dedicated line; the inspection handheld terminal 12 is connected to the location identification terminal 13 via a wireless connection; the wireless connection methods here include RFID wireless communication, NFC wireless communication, WiFi wireless communication, and Bluetooth wireless communication.

[0039] (I) Gas sampling terminal 11

[0040] The gas acquisition terminal 11 is used to create a customized data channel between itself and the park edge computing server 16 through the 5G base station 14 and the park user plane gateway 15, which is referred to as the corresponding first data channel.

[0041] In one specific implementation of this invention, the gas sampling terminal 11 is specifically used to create a customized data channel between itself and the campus edge computing server 16 through the 5G base station 14 and the campus user plane gateway 15. It uses itself as a UE network element of the 5G network, the 5G base station 14 as a (R)AN network element of the 5G network, the campus user plane gateway 15 as a UPF network element of the 5G network, and the campus edge computing server 16 as a DN network element connected to the UPF network element in the 5G network. Based on the PDU session request processing mechanism in the 5G network protocol used to create a session channel between the UE network element, (R)AN network element, UPF network element, and DN network element, it creates a customized PDU session channel between the current gas sampling terminal 11 and the campus edge computing server 16 as the corresponding first data channel.

[0042] Here, the PDU session channel mechanism based on the network slicing principle of 5G network in this embodiment of the invention establishes a directional data transmission channel between all gas collection terminals 11 in the first park and the park edge computing server 16, namely the first data channel corresponding to each gas collection terminal 11. This 5G network deployment scheme that sinks into the park in this embodiment of the invention can minimize the transmission path of the first data channel, so that the transmission path of the first data channel only includes four nodes: the gas collection terminal 11 itself, the 5G base station 14, the park user plane gateway 15, and the park edge computing server 16. This can greatly improve the big data latency problem caused by the need to borrow external operator central computer rooms and external Internet forwarding centers for data forwarding in traditional wireless network schemes.

[0043] The gas acquisition terminal 11 is also used to periodically collect and process combustible gas concentration to generate a corresponding first acquisition data packet, and send the first acquisition data packet to the park edge computing server 16 through the first data channel; wherein, the first acquisition data packet includes a first timestamp, a first location identifier and first acquisition data; the first acquisition data includes one or more first gas sensor data, and the first gas sensor data includes a first gas type and a first gas concentration.

[0044] In another specific implementation of this invention, the gas acquisition terminal 11 is specifically used to, when periodically performing combustible gas concentration acquisition processing, collect gas concentration information of one or more specified combustible gases based on one or more built-in gas sensors at a preset first acquisition frequency to generate a corresponding first gas concentration; record the combustible gas type corresponding to each gas sensor as the corresponding first gas type; and form the corresponding first gas sensor data by the first gas type and the first gas concentration corresponding to each gas sensor; and form the corresponding first acquisition data by all the obtained first gas sensor data; use the current terminal time as the corresponding first timestamp; extract the terminal location identifier of the local threshold as the corresponding first location identifier; and form the corresponding first acquisition data packet by the obtained first timestamp, first location identifier, and first acquisition data.

[0045] Here, the gas sensor built into the gas acquisition terminal 11 in this embodiment of the invention can be configured not only for sensors targeting various combustible gases, but also for sensors targeting any other gas type.

[0046] The gas acquisition terminal 11 is also used to receive a first local early warning instruction sent by the park edge computing server 16 through the first data channel, and to perform local early warning processing according to the first local early warning instruction; wherein, the first local early warning instruction includes a first early warning level; the first early warning level includes a first-level early warning level, a second-level early warning level and a third-level early warning level; the risk level of the first-level early warning level is higher than that of the second-level early warning level, and the risk level of the second-level early warning level is higher than that of the third-level early warning level.

[0047] In another specific implementation of this invention, the gas acquisition terminal 11 is specifically used to extract the corresponding first warning level from the first local warning command when performing local warning processing according to the first local warning command; and to identify the first warning level; if the first warning level is a level three warning level, then the built-in buzzer is invoked to sound a low-frequency, low-volume alarm and the built-in or external signal light is invoked to sound a low-frequency, flashing red light alarm; if the first warning level is a level two warning level, then the built-in buzzer is invoked to sound a high-frequency, high-volume alarm and the built-in or external signal light is invoked to sound a high-frequency, flashing red light alarm; if the first warning level is a level one warning level, then the built-in buzzer is invoked to sound a high-frequency, high-volume alarm and the built-in or external signal light is invoked to sound a high-frequency, flashing red light alarm, and at the same time, it identifies whether the current gas acquisition terminal 11 is connected to one or more external gas valves, and if so, controls all connected external gas valves to close.

[0048] The gas acquisition terminal 11 is also used to perform local early warning cancellation processing when it receives a first local early warning cancellation command sent by the park edge computing server 16 through the first data channel.

[0049] In another specific implementation of this invention, the gas acquisition terminal 11 is specifically used to turn off the built-in buzzer alarm and turn off the built-in or external signal light flashing alarm when the local warning cancellation process is performed; and to identify whether the current gas acquisition terminal 11 is connected to one or more external gas valves. If so, it identifies whether all external gas valves connected to the current gas acquisition terminal 11 are in the valve closed state. If so, it controls all connected external gas valves to open.

[0050] (II) Inspection handheld terminal 12

[0051] The inspection handheld terminal 12 is used to create a customized data channel between itself and the park edge computing server 16 through the 5G base station 14 and the park user plane gateway 15, which is referred to as the corresponding second data channel.

[0052] In another specific implementation of this invention, the inspection handheld terminal 12 is specifically used to create a customized data channel between itself and the campus edge computing server 16 through the 5G base station 14 and the campus user plane gateway 15. It uses itself as a UE network element of the 5G network, the 5G base station 14 as a (R)AN network element of the 5G network, the campus user plane gateway 15 as a UPF network element of the 5G network, and the campus edge computing server 16 as a DN network element connected to the UPF network element in the 5G network. Based on the PDU session request processing mechanism in the 5G network protocol used to create a session channel between the UE network element, (R)AN network element, UPF network element, and DN network element, it creates a customized PDU session channel between the current inspection handheld terminal 12 and the campus edge computing server 16 as the corresponding second data channel.

[0053] Here, the PDU session channel mechanism based on the network slicing principle of 5G network in this embodiment of the invention establishes a directional data transmission channel between all inspection handheld terminals 12 in the first park and the park edge computing server 16, namely the second data channel corresponding to each inspection handheld terminal 12. This 5G network deployment scheme that sinks into the park in this embodiment of the invention can minimize the transmission path of the second data channel, so that the transmission path of the first data channel only includes four nodes: the inspection handheld terminal 12 itself, the 5G base station 14, the park user plane gateway 15, and the park edge computing server 16. This can greatly improve the big data latency problem caused by the need to borrow external operator central computer rooms and external Internet forwarding centers for data forwarding in traditional wireless network schemes.

[0054] The inspection handheld terminal 12 is also used to receive the first inspection trajectory allocation instruction sent by the park edge computing server 16 through the second data channel, and to perform inspection task display processing according to the first inspection trajectory allocation instruction; wherein, the first inspection trajectory allocation instruction includes the first inspection task trajectory; the first inspection task trajectory includes multiple first inspection trajectory point records; the first inspection trajectory point records include the first trajectory point location identifier and the first trajectory point inspection time period.

[0055] In another specific implementation of this invention, the inspection handheld terminal 12 is specifically used to, when performing inspection task display processing according to the first inspection trajectory allocation instruction, extract the corresponding first inspection task trajectory from the first inspection trajectory allocation instruction and store it locally as the latest first task trajectory data; create a corresponding first visual trajectory route according to the latest first task trajectory data, and record and create corresponding first visual trajectory points for each first inspection trajectory point on the first visual trajectory route, and create corresponding first visual prompt information on each first visual trajectory point; and query a preset [property name] according to the first trajectory point location identifier recorded by the first inspection trajectory point corresponding to each first visual trajectory point. The system extracts the first location description field from the first location information list, where the first location identifier field matches the first trajectory point location identifier, and uses this as the corresponding first location description information. It also extracts the first trajectory point inspection time period from the first inspection trajectory point records corresponding to each first visual trajectory point, using this as the corresponding first location inspection time information. Based on the first location description information and first location inspection time information for each first visual trajectory point, the system sets the corresponding first visual prompt information. Finally, the built-in display module displays the trajectory route, trajectory points, and trajectory point prompt information according to the set first visual trajectory route.

[0056] The first location information list includes multiple first location information records; each first location information record includes a first location identifier field and a first location description field; the first visualized trajectory route includes multiple first visualized trajectory points; each first visualized trajectory point corresponds to a first visualized prompt message.

[0057] Here, in this embodiment of the invention, after the second data channel is established between the handheld inspection terminal 12 and the park edge computing server 16, a regular inspection task trajectory, namely the first inspection task trajectory, is sent by the park edge computing server 16. Each first inspection trajectory point in the first inspection task trajectory records a trajectory point on the corresponding trajectory. The location identifier of the first trajectory point recorded is the location identifier corresponding to the trajectory point, and the inspection time period of the first trajectory point is the specified inspection time period corresponding to the trajectory point. The location identifiers mentioned in this embodiment of the invention are unique identifier codes pre-assigned to each monitoring point in the first park. Each location identifier corresponds to a specific location description, which can be any specific location within the park, such as a building (factory), floor (factory area), room (workshop), pipeline, etc. After receiving the first inspection task trajectory, the handheld inspection terminal 12 of this embodiment of the invention can visualize the overall trajectory and the specific information of each trajectory point carried in the first inspection task trajectory through visualization methods (text, charts, maps, etc.).

[0058] The inspection handheld terminal 12 is also used to work with the location identification terminal 13 to obtain inspection trajectory point information, generate a corresponding first inspection data packet, and send the first inspection data packet to the park edge computing server 16 through the second data channel; wherein, the first inspection data packet includes a second timestamp, a second location identifier and first inspection information.

[0059] In another specific implementation of this invention, the inspection handheld terminal 12 is specifically used to send a first location identifier acquisition instruction to the location identifier terminal 13 installed at the inspection location when it is linked with the location identifier terminal 13 to obtain inspection trajectory point information and generate a corresponding first inspection data packet. The first location identifier acquisition instruction feedback data sent back by the current location identifier terminal 13 is used as the corresponding second location identifier. The current terminal time is used as the corresponding second timestamp. The inspection record information input by the inspection personnel is obtained through the built-in information input module as the corresponding first inspection information. The obtained second timestamp, second location identifier and first inspection information are used to form the corresponding first inspection data packet.

[0060] In this embodiment of the invention, a location identification terminal 13 is pre-installed at each designated inspection location in the first park. This location identification terminal 13 is not connected to a 5G network, but only to the inspection handheld terminal 12 via wireless communication methods such as RFID, NFC, WiFi, and Bluetooth. The location identification terminal 13 pre-stores the location identifier corresponding to its installation location. Upon receiving a first location identifier acquisition command from the inspection handheld terminal 12, it sends the pre-stored location identifier back to the inspection handheld terminal 12 as the corresponding first location identifier acquisition command feedback data.

[0061] The inspection handheld terminal 12 is also used to receive the first emergency inspection task allocation instruction sent by the park edge computing server 16 through the second data channel, and to perform emergency inspection task display processing according to the first emergency inspection task allocation instruction; wherein, the first emergency inspection task allocation instruction includes a third timestamp, a third location identifier, a second warning level and one or more first gas warning data; the first gas warning data includes a second gas type and a second gas concentration.

[0062] In another specific implementation of this invention, the inspection handheld terminal 12 is specifically used to extract the corresponding third timestamp, third location identifier, second warning level, and one or more first gas warning data composed of second gas type and second gas concentration from the first emergency inspection task allocation instruction when performing emergency inspection task display processing according to the first emergency inspection task allocation instruction; and to take the first visual trajectory point whose first trajectory point location identifier matches the third location identifier recorded on the first visual trajectory point on the first visual trajectory route as the corresponding first emergency trajectory point; and to form the corresponding first emergency task prompt information composed of the third timestamp, second warning level, and one or more first gas warning data; and to highlight the first emergency trajectory point on the displayed first visual trajectory route through the built-in display module, and to add the corresponding first emergency task prompt information to the first visual prompt information corresponding to the highlighted first emergency trajectory point.

[0063] Here, after receiving the first emergency inspection task allocation instruction sent by the park edge computing server 16, the inspection handheld terminal 12 of this embodiment of the invention will confirm the trajectory point where the warning occurs, i.e., the first emergency trajectory point, according to the third location identifier in the instruction, and highlight the first emergency trajectory point on the first visual trajectory route, and synchronously display the warning level and warning information corresponding to the first emergency trajectory point.

[0064] The inspection handheld terminal 12 is also used to receive a first emergency inspection task cancellation instruction sent by the park edge computing server 16 through the second data channel, and to perform emergency inspection task cancellation processing according to the first emergency inspection task cancellation instruction; wherein, the first emergency inspection task cancellation instruction includes a fourth location identifier.

[0065] In another specific implementation of this invention, the inspection handheld terminal 12 is specifically used to extract the corresponding fourth location identifier from the first emergency inspection task cancellation instruction when performing emergency inspection task cancellation processing according to the first emergency inspection task cancellation instruction; and to take the first visual trajectory point whose first trajectory point location identifier matches the fourth location identifier on the first visual trajectory point record corresponding to the first inspection trajectory point on the first visual trajectory route as the corresponding first emergency task cancellation trajectory point; and to de-highlight the first emergency task cancellation trajectory point on the displayed first visual trajectory route through the built-in display module, and delete all first emergency task prompt information from the first visual prompt information corresponding to the first emergency task cancellation trajectory point.

[0066] Here, after receiving the first emergency inspection task cancellation instruction sent by the park edge computing server 16, the inspection handheld terminal 12 of this embodiment of the invention will confirm the trajectory point for canceling the warning, namely the first emergency task cancellation trajectory point, according to the fourth location identifier in the instruction. It will also cancel the highlight display before the first emergency task cancellation trajectory point on the first visual trajectory route and simultaneously delete the warning level and warning information display content before the first emergency task cancellation trajectory point.

[0067] (III) Location Identification Terminal 13

[0068] The location identification terminal 13 is used to send the locally preset terminal location identification as the corresponding first location identification acquisition instruction feedback data to the inspection handheld terminal 12 when it receives the first location identification acquisition instruction sent by the inspection handheld terminal 12.

[0069] (iv) Campus Edge Computing Server 16

[0070] The park edge computing server 16 is used to store, through a local database or an external database, a terminal information list for recording all gas collection terminals 11 installed in the first park (referred to as the corresponding first terminal information list) and a terminal information list for recording all inspection handheld terminals 12 configured in the first park (referred to as the corresponding second terminal information list).

[0071] The first terminal information list includes multiple first terminal information records; each first terminal information record corresponds one-to-one with a gas acquisition terminal 11; each first terminal information record includes a first terminal location identifier field, a first terminal location description field, a first terminal gas warning data field, a first terminal warning level field, and a first terminal historical warning information field; the first terminal gas warning data field includes one or more first-class gas warning data groups, which include the first warning gas type, first-level gas concentration threshold range, second-level gas concentration threshold range, third-level gas concentration threshold range, and fourth-level gas concentration threshold range, with the gas concentration decreasing progressively in the first, second, third, and fourth-level gas concentration threshold ranges; the first terminal warning level field includes a first-level warning level, a second-level warning level, a third-level warning level, and a no-warning level, with the severity of the warning decreasing progressively in the first, second, and third-level warning levels; the first terminal historical warning information field includes multiple first terminal historical warning information entries;

[0072] Here, each first terminal information record corresponds to a gas acquisition terminal 11. The first terminal location identifier field in the first terminal information record is the location identifier of the corresponding gas acquisition terminal installation location; the first terminal location description field is the location description corresponding to the location identifier of the corresponding gas acquisition terminal; each first type of gas warning data group in the first terminal gas warning data field corresponds one-to-one with each gas sensor on the corresponding gas acquisition terminal; the first warning gas type of the first type of gas warning data group is the gas type of the corresponding gas sensor; the first type of gas warning data group also includes four levels of gas concentration threshold ranges (level 1, 2, 3, and 4 gas concentration threshold ranges); if the collected gas concentration is within the level 1, 2, or 3 gas concentration threshold range, a corresponding level 1, 2, or 3 warning will be generated; if the collected gas concentration is within the level 4 gas concentration threshold range, no warning will be generated; the first terminal warning level field stores the current warning level of the corresponding gas acquisition terminal, including level 1 warning level, level 2 warning level, level 3 warning level, and no warning level; the first terminal historical warning information field stores all historical warning information of the corresponding gas acquisition terminal, i.e., it consists of multiple first terminal historical warning information.

[0073] The second terminal information list includes multiple second terminal information records; each second terminal information record corresponds one-to-one with the inspection handheld terminal 12; each second terminal information record includes a first terminal device identifier field, a first terminal inspection task trajectory field, a second terminal location identifier field, and a first terminal inspection information field; the first terminal inspection task trajectory field includes the first terminal inspection task trajectory; the first terminal inspection task trajectory includes multiple first inspection trajectory point records, each first inspection trajectory point record including the first trajectory point location identifier and the first trajectory point inspection time period; the first terminal inspection information field includes multiple first terminal inspection information records.

[0074] Here, each second terminal information record corresponds to one inspection handheld terminal 12. The first terminal device identifier field in the second terminal information record is the terminal device code of the corresponding inspection handheld terminal. The first terminal inspection task trajectory field stores the first terminal inspection task trajectory, which is a regular inspection task trajectory pre-assigned to the corresponding inspection handheld terminal. The second terminal location identifier field is the location identifier of the inspection trajectory point most recently passed by the corresponding inspection handheld terminal. The first terminal inspection information field stores the historical inspection information of the corresponding inspection handheld terminal, which is composed of multiple first terminal inspection information.

[0075] The park edge computing server 16 is also used to allocate / cancel local early warning tasks and emergency inspection tasks based on the first data packets received by each first data channel after establishing corresponding first data channels with each gas acquisition terminal 11.

[0076] In another specific implementation of this invention, the campus edge computing server 16 is specifically used to perform the allocation / cancellation of local early warning tasks and emergency inspection tasks based on the first data packets received from each first data channel:

[0077] Step s1: Extract the corresponding first timestamp, first location identifier and first acquisition data from the first acquisition data packet, and extract one or more first gas sensor data consisting of the first gas type and the first gas concentration from the first acquisition data;

[0078] Step s2, and take the first data channel corresponding to the first data packet currently received as the corresponding current first data channel; and take the first terminal information record in the first terminal information list whose first terminal location identifier field matches the first location identifier as the corresponding first record;

[0079] Step s3, calculate the corresponding first distance between the second terminal location identifier field and the first location identifier of each second terminal information record in the second terminal information list, select the minimum value from all the obtained first distances as the corresponding first shortest distance, and take the second terminal information record corresponding to the first shortest distance as the corresponding second record;

[0080] Here, the park edge computing server 16 of this embodiment of the invention calculates the real spatial distance between any two location markers within the first park in several ways. One method is as follows: if both locations corresponding to these two location markers are outdoor ground locations, then the corresponding first distance is obtained by calculating the straight-line distance based on their corresponding ground coordinates; if one of the two locations corresponding to these two location markers is an outdoor ground location and the other is an indoor ground location, then the two straight-line distances from the outdoor ground location to the ground door and from the ground door to the ground location are calculated, and the two calculation results are summed to obtain the corresponding first distance; if one of the two locations corresponding to these two location markers is an outdoor ground location and the other is an indoor non-ground location... If the location is set, the straight-line distance from the outdoor ground position to the door of the first floor, the total height difference between the first floor and the corresponding floor level of the non-first floor position, and the straight-line distance from the door of the non-first floor position to the non-first floor position are calculated separately. The three calculation results are then summed to obtain the corresponding first distance. If both positions corresponding to these two location markers are indoor ground positions (first and second indoor ground positions), the straight-line distance from the first indoor ground position to the door of the corresponding floor, the total height difference between the first indoor ground position and the corresponding floor level of the second indoor ground position, and the straight-line distance from the second indoor ground position to the door of the corresponding floor are calculated separately. The three calculation results are then summed to obtain the corresponding first distance.

[0081] Step s4, and take the second data channel of the inspection handheld terminal 12 corresponding to the second record as the corresponding current second data channel;

[0082] Step s5: Based on the one-to-one correspondence between the first gas type of the first gas sensor data and the first warning gas type of the first record, the first gas warning data group corresponding to each first gas sensor data in the first record is taken as the corresponding first matching data group; when the first gas concentration level corresponding to each first gas sensor data meets the first, second, third or fourth level gas concentration threshold range of the corresponding first matching data group, the corresponding first gas concentration level is set to the corresponding first level, second level, third level and fourth level, with the first level, second level, third level and fourth level decreasing step by step; and the first gas type and first gas concentration of each first gas sensor data with the first gas concentration level higher than the fourth level in the first collected data are extracted as the corresponding second gas type and second gas concentration to form the corresponding first gas warning data; and the highest level is selected from all the obtained first gas concentration levels as the corresponding first highest level;

[0083] Here, the current step is actually to identify the gas concentration level of the first gas sensor data that matches the gas type in the current first collection data by using the gas concentration threshold range of the four levels of each first type of gas warning data group in the first record, and select the highest level as the first highest level.

[0084] Step s6: When the first highest level is level 1, level 2, or level 3, extract the timestamp from the latest first terminal historical warning information in the first terminal historical warning information field of the first record as the corresponding previous timestamp, and calculate the corresponding first time interval between the first timestamp and the previous timestamp; when the first time interval is greater than the preset time interval threshold, set the first terminal warning level field of the first record to the first level 1, level 2, or level 3 warning level corresponding to the first highest level, and use the first highest level as the corresponding first and second warning levels, and use the first timestamp and the first location identifier as the corresponding third timestamp and the third location identifier, and add the obtained third timestamp, third location identifier, second warning level, and all first gas warning data to the first terminal historical warning information field of the first record to form new first terminal historical warning information, and send the first local warning instruction carrying the first warning level to the corresponding gas acquisition terminal 11 through the current first data channel, and send the first emergency inspection task allocation instruction carrying the third timestamp, third location identifier, second warning level, and all first gas warning data to the corresponding inspection handheld terminal 12 through the current second data channel;

[0085] Here, if the first highest level is level one, level two or level three, it indicates that a gas leak may occur. At this time, the campus edge computing server 16 of this embodiment will set the first terminal warning level field of the first record in the first terminal information list to the first warning level corresponding to the first highest level, level one, level two or level three. At the same time, it will send the first local warning instruction to the gas collection terminal 11 at the front end to activate the local warning processing flow of the gas collection terminal 11 in real time. At the same time, it will send the first emergency inspection task allocation instruction to the inspection personnel at the inspection handheld terminal 12 closest to the gas collection terminal 11 to schedule the inspection personnel to perform the corresponding emergency warning inspection task.

[0086] Step s7, and when the first highest level is level four, set the first terminal warning level field of the first record to no warning level; send the first local warning cancellation instruction to the corresponding gas acquisition terminal 11 through the current first data channel; use the first location identifier as the corresponding fourth location identifier, and send the first emergency inspection task cancellation instruction carrying the fourth location identifier to the corresponding inspection handheld terminal 12 through the current second data channel.

[0087] Here, if the highest level is level four, it means that no gas leak has occurred or the previous gas leak hazard has been eliminated. At this time, the park edge computing server 16 of this embodiment will set the first terminal warning level field of the first record in the first terminal information list to the no warning level corresponding to the highest level, and at the same time, it will send a first local warning cancellation command to the gas collection terminal 11 at the front end to stop the local warning processing process being executed by the gas collection terminal 11. At the same time, it will send a first emergency inspection task cancellation command to the inspection personnel at the front end of the gas collection terminal 11 to stop the corresponding emergency warning inspection task and return to the regular inspection task trajectory route to continue the inspection.

[0088] The park edge computing server 16 is also used to perform inspection trajectory allocation processing when a corresponding second data channel is established with each inspection handheld terminal 12, and to perform park inspection personnel location monitoring processing based on the first inspection data packet received by each second data channel.

[0089] In another specific implementation of this invention, the park edge computing server 16 is specifically used to perform inspection trajectory allocation processing when establishing corresponding second data channels with each inspection handheld terminal 12. Specifically, it takes the current inspection handheld terminal 12 as the corresponding current terminal, the second data channel corresponding to the current terminal as the corresponding current channel, and the second terminal information record corresponding to the current terminal in the second terminal information list as the corresponding current record. It also extracts the first terminal inspection task trajectory from the first terminal inspection task trajectory field of the current record as the corresponding first inspection task trajectory; sends the first inspection trajectory allocation instruction carrying the first inspection task trajectory to the current terminal through the current channel; initializes the second terminal location identifier field of the current record to the first trajectory point location identifier recorded in the first first inspection trajectory point of the corresponding first terminal inspection task trajectory; and clears the first terminal inspection information field of the current record.

[0090] In another specific implementation of this invention, the park edge computing server 16 is specifically used to, when performing park inspection personnel location monitoring processing based on the first inspection data packets received from each second data channel, take the inspection handheld terminal 12 corresponding to the current first inspection data packet as the corresponding current terminal, and take the second terminal information record corresponding to the current terminal in the second terminal information list as the corresponding current record; extract the corresponding second timestamp, second location identifier, and first inspection information from the first inspection data packet; update the second terminal location identifier field of the current record to the second location identifier, and add the first inspection information as new first terminal inspection information to the first terminal inspection information field of the current record; and dynamically refresh the inspection location of each inspection personnel in the first park according to the latest second terminal information list.

[0091] This invention provides a combustible gas monitoring system based on 5G campus edge computing. The system includes: multiple gas collection terminals, multiple inspection handheld terminals, multiple location identification terminals, a 5G base station, a campus user plane gateway, and a campus edge computing server. The system is deployed in a designated first campus and connected to the 5G core network. The 5G base station of the system is connected to each gas collection terminal, each inspection handheld terminal, the campus user plane gateway, and the 5G core network. The campus user plane gateway and the campus edge computing server are connected via a dedicated line. The inspection handheld terminals are connected to the location identification terminals wirelessly. The system of this invention first uses gas collection terminals and inspection handheld terminals as user terminals of a 5G network, a park edge computing server as a dedicated 5G network data network deployed to the park, and a park user plane gateway as a 5G network user plane gateway deployed to the park. A local 5G network base station is set up in the park and connected to the 5G core network. Based on the PDU session request processing mechanism in the 5G network protocol used to create session channels between UE network elements, (R)AN network elements, UPF network elements, and DN network elements, a customized PDU session channel is created between each user terminal in the park and the park edge computing server as the corresponding real-time data channel. Secondly, each gas collection terminal is configured with real-time gas data detection and reporting and local early warning processing procedures. Each inspection handheld terminal is configured with two inspection task processing procedures: regular inspection and early warning inspection. The corresponding real-time gas data monitoring, early warning, regular inspection task deployment, and emergency early warning inspection task deployment processing procedures are configured on the park edge computing server. The 5G network of this invention eliminates the need for wired network deployment between the gas sampling terminal and the park edge computing server, thereby improving the deployment flexibility of the gas sampling terminal. The recessed 5G network deployment scheme of this invention ensures that the interactive data between the gas sampling terminal, the inspection handheld terminal, and the park edge computing server in the real-time data channel does not require data forwarding via external networks or other networks, thus reducing data latency. The processing flow configured for each terminal and server in this invention allows for timely acquisition of real-time detection information from each monitoring point, and enables immediate activation of early warning and dispatch of inspection personnel to the scene in the event of a gas leak, thereby improving the sensitivity of combustible gas monitoring and the real-time response capability to gas leaks.

[0092] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0093] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented in hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0094] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A combustible gas monitoring system based on 5G campus edge computing, characterized in that, The system includes: multiple gas collection terminals, multiple handheld inspection terminals, multiple location identification terminals, a 5G base station, a campus user plane gateway, and a campus edge computing server; the combustible gas monitoring system is deployed in a designated first campus and connected to the 5G core network; The 5G base station is connected to each of the gas collection terminals, each of the inspection handheld terminals, the park user plane gateway, and the 5G core network; the park user plane gateway and the park edge computing server are connected via dedicated lines; the inspection handheld terminals are connected to the location identification terminals via wireless connections; the wireless connection methods include RFID wireless communication, NFC wireless communication, WiFi wireless communication, and Bluetooth wireless communication. The gas sampling terminal is used to create a customized data channel, referred to as the corresponding first data channel, between itself and the park edge computing server through the 5G base station and the park user plane gateway; the gas sampling terminal is also used to periodically collect and process combustible gas concentration to generate a corresponding first data packet, and send the first data packet to the park edge computing server through the first data channel; the gas sampling terminal is also used to receive a first local early warning instruction sent by the park edge computing server through the first data channel, and perform local early warning processing according to the first local early warning instruction; the gas sampling terminal is also used to perform local early warning cancellation processing when it receives a first local early warning cancellation instruction sent by the park edge computing server through the first data channel. The inspection handheld terminal is used to create a customized data channel, referred to as the corresponding second data channel, between itself and the park edge computing server through the 5G base station and the park user plane gateway; the inspection handheld terminal is also used to receive a first inspection trajectory allocation instruction sent by the park edge computing server through the second data channel, and perform inspection task display processing according to the first inspection trajectory allocation instruction; the inspection handheld terminal is also used to coordinate with the location identification terminal to obtain inspection trajectory point information, generate a corresponding first inspection data packet, and send the first inspection data packet to the park edge computing server through the second data channel; the inspection handheld terminal is also used to receive a first emergency inspection task allocation instruction sent by the park edge computing server through the second data channel, and perform emergency inspection task display processing according to the first emergency inspection task allocation instruction; the inspection handheld terminal is also used to receive a first emergency inspection task cancellation instruction sent by the park edge computing server through the second data channel, and perform emergency inspection task cancellation processing according to the first emergency inspection task cancellation instruction. The park edge computing server is used to allocate / cancel local early warning tasks and emergency inspection tasks based on the first data packets received by each of the gas collection terminals after establishing corresponding first data channels with each of the gas collection terminals; the park edge computing server is also used to allocate inspection trajectories when establishing corresponding second data channels with each of the inspection handheld terminals, and to monitor the location of park inspection personnel based on the first inspection data packets received by each of the second data channels. Specifically, the gas sampling terminal is used to create a customized data channel between itself and the campus edge computing server through the 5G base station and the campus user plane gateway. It uses itself as a UE network element of the 5G network, the 5G base station as a (R)AN network element of the 5G network, the campus user plane gateway as a UPF network element of the 5G network, and the campus edge computing server as a DN network element connected to the UPF network element in the 5G network. Based on the PDU session request processing mechanism in the 5G network protocol used to create a session channel between the UE network element, (R)AN network element, UPF network element, and DN network element, it creates a customized PDU session channel between the gas sampling terminal and the campus edge computing server as the corresponding first data channel. Specifically, the inspection handheld terminal is used to create a customized data channel between itself and the campus edge computing server through the 5G base station and the campus user plane gateway. It acts as a UE network element of the 5G network, the 5G base station as a (R)AN network element of the 5G network, the campus user plane gateway as a UPF network element of the 5G network, and the campus edge computing server as a DN network element connected to the UPF network element in the 5G network. Based on the PDU session request processing mechanism in the 5G network protocol used to create a session channel between the UE network element, (R)AN network element, UPF network element, and DN network element, it creates a customized PDU session channel between the inspection handheld terminal and the campus edge computing server as the corresponding second data channel.

2. The combustible gas monitoring system based on 5G campus edge computing according to claim 1, characterized in that, The first data acquisition packet includes a first timestamp, a first location identifier, and first acquisition data; the first acquisition data includes one or more first gas sensor data, and the first gas sensor data includes a first gas type and a first gas concentration; The first local early warning instruction includes a first early warning level; The first inspection trajectory allocation instruction includes a first inspection task trajectory; the first inspection task trajectory includes multiple first inspection trajectory point records; the first inspection trajectory point records include first trajectory point location identifiers and first trajectory point inspection time periods; The first inspection data packet includes a second timestamp, a second location identifier, and first inspection information; The first emergency inspection task allocation instruction includes a third timestamp, a third location identifier, a second warning level, and one or more first gas warning data; the first gas warning data includes a second gas type and a second gas concentration; The first emergency inspection task cancellation instruction includes a fourth location identifier.

3. The combustible gas monitoring system based on 5G campus edge computing according to claim 2, characterized in that, The gas acquisition terminal is specifically used to, during the periodic collection and processing of combustible gas concentration, collect gas concentration information of one or more specified combustible gases based on one or more built-in gas sensors at a preset first acquisition frequency to generate the corresponding first gas concentration; and to record the combustible gas type corresponding to each gas sensor as the corresponding first gas type; and to form the corresponding first gas sensor data by the first gas type and the first gas concentration corresponding to each gas sensor; and to form the corresponding first acquisition data by all the obtained first gas sensor data. And use the current terminal time as the corresponding first timestamp; The terminal location identifier of the local threshold is extracted as the corresponding first location identifier; and the first collection data packet is composed of the obtained first timestamp, the first location identifier and the first collection data. The gas acquisition terminal is specifically used to extract the corresponding first warning level from the first local warning command when performing local warning processing according to the first local warning command; and to identify the first warning level; if the first warning level is a level three warning level, then the built-in buzzer is invoked to sound a low-frequency, low-volume alarm and the built-in or external signal light is invoked to sound a low-frequency, flashing red light alarm; if the first warning level is a level two warning level, then the built-in buzzer is invoked to sound a high-frequency, high-volume alarm and the built-in or external signal light is invoked to sound a high-frequency, flashing red light alarm; if the first warning level is a level one warning level, then the built-in buzzer is invoked to sound a high-frequency, high-volume alarm and the built-in or external signal light is invoked to sound a high-frequency, flashing red light alarm, and at the same time, it identifies whether the current gas acquisition terminal is connected to one or more external gas valves, and if so, controls all connected external gas valves to close. The gas acquisition terminal is specifically used to, during the local warning cancellation process, to turn off the built-in buzzer alarm and to turn off the built-in or external indicator light flashing alarm; and to identify whether the gas acquisition terminal is currently connected to one or more external gas valves. If so, it identifies whether all the external gas valves connected to the gas acquisition terminal are in a closed state. If so, it controls all the connected external gas valves to open.

4. The combustible gas monitoring system based on 5G campus edge computing according to claim 2, characterized in that, The handheld inspection terminal is specifically used to extract the corresponding first inspection task trajectory from the first inspection trajectory allocation instruction and store it locally as the latest first task trajectory data when the inspection task display processing is performed according to the first inspection trajectory allocation instruction. Based on the latest first task trajectory data, a corresponding first visual trajectory route is created, and corresponding first visual trajectory points are created for each of the first inspection trajectory points on the first visual trajectory route, and corresponding first visual prompt information is created for each of the first visual trajectory points. Based on the location identifier of the first trajectory point recorded by the first inspection trajectory point corresponding to each first visual trajectory point, a preset first location information list is queried. The first location description field of the first location information record that matches the first location identifier field of the first location information list with the first trajectory point location identifier is extracted as the corresponding first location description information. The first inspection time period of the first trajectory point recorded by the first inspection trajectory point corresponding to each first visual trajectory point is extracted as the corresponding first location inspection time information. The system sets the corresponding first visual prompt information based on the first location description information and the first location inspection time information corresponding to each first visual trajectory point; and displays the trajectory route, trajectory points, and trajectory point prompt information according to the set first visual trajectory route through the built-in display module; the first location information list includes multiple first location information records; the first location information record includes a first location identifier field and a first location description field; The first visualized trajectory route includes multiple first visualized trajectory points; each first visualized trajectory point corresponds to a first visualized prompt message; The inspection handheld terminal is specifically used to send a first location identifier acquisition instruction to the location identifier terminal installed at the inspection location when it is linked with the location identifier terminal to obtain inspection trajectory point information and generate a corresponding first inspection data packet, and to use the feedback data of the first location identifier acquisition instruction sent back by the current location identifier terminal as the corresponding second location identifier. The current terminal time is used as the corresponding second timestamp; and the inspection record information entered by the inspection personnel is obtained through the built-in information input module and used as the corresponding first inspection information. The first inspection data packet is composed of the obtained second timestamp, the second location identifier, and the first inspection information; The handheld inspection terminal is specifically used to extract the corresponding third timestamp, third location identifier, second warning level, and one or more first gas warning data composed of the second gas type and the second gas concentration from the first emergency inspection task allocation instruction when the emergency inspection task display processing is performed according to the first emergency inspection task allocation instruction. And the first visual trajectory point whose first trajectory point location identifier matches the third location identifier recorded on the first visual trajectory point corresponding to the first inspection trajectory point on the first visual trajectory route is taken as the corresponding first emergency trajectory point; The first emergency task prompt information is composed of the third timestamp, the second warning level, and one or more of the first gas warning data; and the first emergency trajectory point is highlighted on the first visual trajectory route through the built-in display module, and the corresponding first emergency task prompt information is added to the first visual prompt information corresponding to the highlighted first emergency trajectory point. The handheld inspection terminal is specifically used to extract the corresponding fourth location identifier from the first emergency inspection task cancellation instruction when the emergency inspection task cancellation process is performed according to the first emergency inspection task cancellation instruction. The first visual trajectory point whose location identifier matches the fourth location identifier recorded by the first inspection trajectory point on the first visual trajectory route is taken as the corresponding first emergency task cancellation trajectory point; and the built-in display module is used to unhighlight the first emergency task cancellation trajectory point on the displayed first visual trajectory route, and delete all first emergency task prompt information from the first visual prompt information corresponding to the first emergency task cancellation trajectory point.

5. The combustible gas monitoring system based on 5G campus edge computing according to claim 4, characterized in that, The location identification terminal is used to send a locally preset terminal location identifier as the corresponding feedback data of the first location identification acquisition instruction to the inspection handheld terminal when it receives the first location identification acquisition instruction sent by the inspection handheld terminal.

6. The combustible gas monitoring system based on 5G campus edge computing according to claim 2, characterized in that, The park edge computing server is used to store, through a local database or an external database, a terminal information list for recording all the gas collection terminals installed in the first park (denoted as the corresponding first terminal information list) and a terminal information list for recording all the inspection handheld terminals configured in the first park (denoted as the corresponding second terminal information list). The first terminal information list includes multiple first terminal information records; each first terminal information record corresponds one-to-one with a gas acquisition terminal; each first terminal information record includes a first terminal location identifier field, a first terminal location description field, a first terminal gas warning data field, a first terminal warning level field, and a first terminal historical warning information field; the first terminal gas warning data field includes one or more first-class gas warning data groups, each first-class gas warning data group including a first warning gas type, a first-level gas concentration threshold range, a second-level gas concentration threshold range, a third-level gas concentration threshold range, and a fourth-level gas concentration threshold range, with the gas concentration decreasing progressively in the first, second, third, and fourth-level gas concentration threshold ranges; the first terminal warning level field includes a first-level warning level, a second-level warning level, a third-level warning level, and a no-warning level, with the warning severity decreasing progressively in the first, second, and third-level warning levels; the first terminal historical warning information field includes multiple first terminal historical warning information entries; The second terminal information list includes multiple second terminal information records; each second terminal information record corresponds one-to-one with the inspection handheld terminal; each second terminal information record includes a first terminal device identifier field, a first terminal inspection task trajectory field, a second terminal location identifier field, and a first terminal inspection information field; the first terminal inspection task trajectory field includes the first terminal inspection task trajectory; The first terminal inspection task trajectory includes multiple first inspection trajectory point records, and the first inspection trajectory point record includes the location identifier of the first trajectory point and the inspection time period of the first trajectory point; the first terminal inspection information field includes multiple first terminal inspection information.

7. The combustible gas monitoring system based on 5G campus edge computing according to claim 6, characterized in that, The park edge computing server is specifically used to extract the corresponding first timestamp, first location identifier and first collection data from the first collection data when the allocation / cancellation of local early warning tasks and emergency inspection tasks are performed according to the first collection data received by each of the first data channels, and to extract one or more corresponding first gas sensor data composed of the first gas type and the first gas concentration from the first collection data. And the first data channel corresponding to the first data packet currently received is taken as the corresponding current first data channel; The first terminal information record in the first terminal information list that matches the first terminal location identifier field with the first location identifier is taken as the corresponding first record; the actual spatial distance between the second terminal location identifier field and the first location identifier of each second terminal information record in the second terminal information list is calculated to obtain the corresponding first distance, and the minimum value is selected from all the obtained first distances as the corresponding first shortest distance, and the second terminal information record corresponding to the first shortest distance is taken as the corresponding second record; and the second data channel of the inspection handheld terminal corresponding to the second record is taken as the corresponding current second data channel; Based on the one-to-one correspondence between the first gas type in the first gas sensor data and the first warning gas type in the first record, the first gas warning data group corresponding to each of the first gas sensor data in the first record is taken as the corresponding first matching data group; when the first gas concentration level corresponding to each of the first gas sensor data meets the first, second, third or fourth level gas concentration threshold range of the corresponding first matching data group, the corresponding first gas concentration level is set to the corresponding first level, second level, third level and fourth level, and the first level, second level, third level and fourth level decreases step by step; and the first gas type and first gas concentration of each of the first gas sensor data in the first collected data where the first gas concentration level is higher than the fourth level are extracted as the corresponding second gas type and second gas concentration to form the corresponding first gas warning data; and the highest level is selected from all the obtained first gas concentration levels as the corresponding first highest level. When the first highest level is level one, level two, or level three, the timestamp of the latest first terminal historical warning information in the first recorded first terminal historical warning information field is extracted as the corresponding previous timestamp, and the time interval between the first timestamp and the previous timestamp is calculated to obtain the corresponding first time interval; when the first time interval is greater than a preset time interval threshold, the first terminal warning level field of the first recorded first terminal is set to the first, level two, or level three warning level corresponding to the first highest level, and the first highest level is used as the corresponding first and second warning levels, and the first timestamp and the first location identifier are used as the corresponding third timestamp and the third location identifier, and the obtained third timestamp, the third location identifier, the second warning level, and all the first gas warning data are combined to form new first terminal historical warning information and added to the first terminal historical warning information field of the first recorded first terminal, and the first local warning instruction carrying the first warning level is sent to the corresponding gas acquisition terminal through the current first data channel, and the first emergency inspection task allocation instruction carrying the third timestamp, the third location identifier, the second warning level, and all the first gas warning data is sent to the corresponding inspection handheld terminal through the current second data channel; And when the first highest level is level four, the first terminal warning level field of the first record is set to no warning level; The first local early warning cancellation instruction is sent to the corresponding gas acquisition terminal through the current first data channel; the first location identifier is used as the corresponding fourth location identifier, and the first emergency inspection task cancellation instruction carrying the fourth location identifier is sent to the corresponding inspection handheld terminal through the current second data channel.

8. The combustible gas monitoring system based on 5G campus edge computing according to claim 6, characterized in that, The park edge computing server is specifically used to perform inspection trajectory allocation processing when the second data channel corresponding to each of the inspection handheld terminals has been established. Specifically, it uses the current inspection handheld terminal as the corresponding current terminal, the second data channel corresponding to the current terminal as the corresponding current channel, and the second terminal information record in the second terminal information list corresponding to the current terminal as the corresponding current record. It also extracts the first terminal inspection task trajectory from the first terminal inspection task trajectory field of the current record as the corresponding first inspection task trajectory. The first inspection trajectory allocation instruction, carrying the first inspection task trajectory, is sent to the current terminal through the current channel; the second terminal location identifier field currently recorded is initialized to the first trajectory point location identifier recorded in the first first inspection trajectory point in the corresponding first terminal inspection task trajectory; and the first terminal inspection information field currently recorded is cleared.

9. The combustible gas monitoring system based on 5G campus edge computing according to claim 6, characterized in that, The park edge computing server is specifically used to, when performing park inspection personnel location monitoring processing based on the first inspection data packets received from each of the second data channels, take the inspection handheld terminal corresponding to the current first inspection data packet as the corresponding current terminal, and take the second terminal information record in the second terminal information list corresponding to the current terminal as the corresponding current record. And extract the corresponding second timestamp, second location identifier and first inspection information from the first inspection data packet; The second terminal location identifier field of the current record is updated to the second location identifier, and the first inspection information is added to the first terminal inspection information field of the current record as new first terminal inspection information. The inspection locations of each inspection personnel in the first park are dynamically updated based on the latest information list from the second terminal.

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