Centralized energy metering device and Internet of Things system embedded with information security module

Abstract

The present invention discloses a centralized energy metering device embedded with an information security module, including a natural gas data acquisition system, a calorific value analysis and processing system, and an energy calculation module, wherein the energy calculation module is also connected to a communication module, the communication module is used to send communication data, and an information security management module is also provided between the communication module and the energy calculation module, the information security management module is used to perform information interaction object identity authentication, interaction data encryption and decryption, and interaction data integrity and validity verification on the communication data. The present invention effectively encrypts and decrypts the communication data by adding an information security management module between the energy calculation module and the communication module, so that the communication data of different users can be effectively distinguished, and the difficulty of the service agency to summarize and organize the communication data is reduced.

Description

Technical Field

[0001] The present invention relates to the field of natural gas energy metering, and in particular to a centralized energy metering device and an Internet of Things system embedded with an information security module. Background Art

[0002] As a high-quality, efficient, clean energy and important chemical raw material, natural gas has been widely valued and given priority in all countries around the world, accounting for 35% of the energy structure. With the increasing status of natural gas as an environmentally friendly energy source, accurate, fair and impartial measurement of natural gas is an important technical work for scientific management of natural gas, which is related to the interests of many parties. At the same time, as a fuel, the actual value of natural gas should be its calorific value rather than its volume. The natural gas measurement method abroad generally adopts the energy measurement method, so it is inevitable that unnecessary disputes will arise during the natural gas trade handover process with other countries. Therefore, it is of great significance to carry out research on natural gas energy metering equipment.

[0003] At present, when natural gas energy metering is performed, due to the huge amount of communication data, it is difficult to quickly process the effective data without encryption and distinction. However, the natural gas energy metering device in the prior art simply sends the communication data and then summarizes and organizes it, which undoubtedly increases unnecessary data processing. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiency of the prior art that the communication data sent by the natural gas energy metering device is not encrypted and distinguished, resulting in great difficulty in data sorting when aggregating the communication data. A centralized energy metering device and an Internet of Things system embedded with an information security module are provided. By adding an information security management module between the energy calculation module and the communication module, the communication data is effectively encrypted and decrypted, so that the communication data can be effectively screened and distinguished, reducing the processing intensity and difficulty of the platform for the communication data.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions:

[0006] A centralized energy metering device embedded with an information security module includes a natural gas data acquisition system, a calorific value analysis and processing system, and an energy calculation module. The natural gas data acquisition system and the calorific value analysis and processing system are both connected to the energy calculation module, wherein:

[0007] The natural gas data acquisition system is used to collect the physical data of natural gas and send it to the energy calculation module;

[0008] The calorific value analysis and processing system is used to calculate the unit calorific value of natural gas and send the calculation results to the energy calculation module;

[0009] An energy calculation module, used to receive the physical data of natural gas and the calculation result of the unit calorific value of natural gas, and perform natural gas energy calculation;

[0010] The energy calculation module is also connected to a communication module, which is used to send communication data. An information security management module is also provided between the communication module and the energy calculation module, and the information security management module is used to perform information interaction object identity authentication, interaction data encryption and decryption, and interaction data integrity and validity verification on the communication data.

[0011] In the prior art, the natural gas energy metering device of each user can independently send communication data to the system management platform. The platform will collect the energy calculation results of the natural gas metering device of the user and provide corresponding services. The natural gas energy metering devices of different users usually provide simple identity tags for the communication data, but will not encrypt the communication data, nor will they verify the data integrity and validity locally. This is not conducive to the platform's analysis and application of the received communication data, nor is it conducive to the user experience. Therefore, the present invention adds an information security management module between the energy calculation module and the communication module. The information security management module performs information interaction object identity authentication, interaction data encryption and decryption, and interaction data integrity and validity verification on the communication data containing the energy calculation results, thereby enhancing the efficiency of communication data sorting, and can also effectively eliminate incomplete and invalid interaction data. The interaction data becomes communication data after entering the communication module, so the encryption and decryption of the interaction data can also effectively improve the security of the communication data, so that user information can be better protected.

[0012] Furthermore, the natural gas data acquisition system includes a flow sensor, a pressure sensor and a temperature sensor, and the flow sensor, pressure sensor and temperature sensor are all connected to the energy calculation module. The energy calculation module can calculate the operating flow rate of natural gas through the natural gas physical data collected by the flow sensor, pressure sensor and temperature sensor, and realize the conversion of the operating flow rate to the standard flow rate.

[0013] Furthermore, it also includes a natural gas pipeline, the flow sensor is also connected to an emergency response unit, and the emergency response unit includes a judgment module and a detection sealer, wherein:

[0014] The judgment module is used to receive the flow information sensed by the flow sensor, and when the flow information drops sharply, generate suspected leakage information and activate the detection sealer;

[0015] The detection sealer is used to detect the leakage point of the natural gas pipeline and locally seal the leakage point.

[0016] Under normal circumstances, the flow rate in the natural gas pipeline is maintained within a certain range for a long time without large fluctuations. If the flow rate in the natural gas pipeline is monitored to drop sharply, then the natural gas pipeline is likely to leak. Therefore, the present invention connects an emergency response unit to the telescopic flow sensor, receives the information of the flow sensor through the judgment module in the emergency response unit, and judges whether a suspected leak has occurred through the information of the flow sensor. If a suspected leak occurs, the detection sealer is activated, and the natural gas pipeline is leaked and partially sealed through the detection sealer. At present, when a natural gas pipeline leaks, the detection method is often to monitor the changes in the combustible gas content in the environment. When the leak just occurs, the diffusion of the combustible gas is not rapid, which makes it difficult to respond in time to detect and maintain the leak of the natural gas pipeline. The hysteresis of the response action will further aggravate the leakage of natural gas, so it is extremely important to respond in time and perform local emergency treatment on the natural gas pipeline.

[0017] The detection sealer in the present invention is activated by the flow change inside the natural gas pipeline, so it responds faster than the method of monitoring combustible gases in the environment, and the detection sealer can achieve local sealing of the surface of the natural gas pipeline. By local sealing of the surface of the natural gas pipeline, it can effectively prevent the natural gas in the natural gas pipeline from continuing to leak, thereby buying enough time for the maintenance of the natural gas pipeline.

[0018] Furthermore, the detection sealer includes a fixing ring, which is provided with a plurality of connecting rods, one end of the connecting rod is fixed to the fixing ring, and the other end thereof is fixed with a detection sleeve, the axis of the detection sleeve coincides with the axis of the fixing ring, the detection sleeve is sleeved outside the natural gas pipeline and can slide freely along the natural gas pipeline, and the fixing ring is provided with a sealing nozzle that can move freely along the inner wall of the fixing ring, and the nozzle of the sealing nozzle faces the natural gas pipeline.

[0019] The fixing ring in the present invention is sleeved on the natural gas pipeline, and the fixing ring and the detection sleeve are fixedly connected by a connecting rod. The axis of the fixing ring coincides with the axis of the natural gas pipeline. When the detection sleeve is driven, the fixing ring can follow the movement of the detection sleeve. When the fixing ring is driven, the detection sleeve can follow the movement of the fixing ring. Therefore, in the present invention, a driving force can be provided at any position of the detection sleeve and the fixing ring to drive the movement of the detection sealer. When the detection sleeve moves to the leakage point of the natural gas pipeline, since the spacing between the fixing ring and the detection sleeve is fixed, the fixing ring can be effectively pushed to the leakage point of the natural gas pipeline. Through the spraying of the sealing nozzle on the fixing ring, the leakage point of the natural gas pipeline can be effectively covered, so that the leakage point of the natural gas pipeline is partially sealed. This seal is a temporary seal and can provide sufficient response time for the maintenance of the natural gas pipeline. The sealing material sprayed by the sealing nozzle in the present invention can be made of sealant, sealing mud and other materials, which can quickly adhere to the pipeline surface and dry thoroughly, thereby achieving a local sealing effect.

[0020] Furthermore, the detection sleeve includes a cylinder body, both ends of the cylinder body are provided with sealing rings, a cavity is provided in the cylinder wall of the cylinder body, a plurality of air vents are evenly distributed in the cylinder body, the air vents are connected with the cavity, and a plurality of detection side plates are fixed in the cavity; a plurality of slide rails are provided on the inner wall of the cylinder body, and the slide rails are embedded in the outer surface of the natural gas pipeline.

[0021] The detection sleeve in the present invention is provided with sealing rings at both ends, and the detection plate is a hydrogen sulfide detection plate. The sealing ring blocks the natural gas in the environment from escaping into the cylinder and causing misjudgment of the hydrogen sulfide detection plate. In the present invention, the vent hole connects the environment in the cylinder with the inside of the cavity, but the inner wall of the cylinder also separates the surface of the natural gas pipeline from the inside of the cavity, avoiding direct contact between the hydrogen sulfide detection plate and the surface of the natural gas pipeline. In this way, only the natural gas ejected from the damaged part of the natural gas pipeline can contact the hydrogen sulfide detection plate, avoiding misjudgment of the leakage position. The hydrogen sulfide detection plate in the present invention can achieve the purpose of changing its conductive properties by contacting the hydrogen sulfide in the natural gas, thereby being able to reflect whether it is in contact with a large amount of hydrogen sulfide.

[0022] Furthermore, the sealing nozzle includes a base, a track is provided on the fixed ring, a roller is provided in the base, the roller is embedded in the track and can move freely along the track, a storage cavity is provided on the base, one end of the storage cavity is fixed to the base, and the other end is provided with an end head, a nozzle is fixed on the side of the end head away from the storage cavity, and an electrically controlled valve is provided in the nozzle.

[0023] The sealing nozzle in the present invention can slide freely on the fixed ring, so a base is set at the contact point between the sealing nozzle and the fixed ring. Through the roller in the base and the track on the fixed ring, the base can slide freely along the track of the fixed ring, thereby driving the sealing nozzle to slide freely on the fixed ring. The roller is driven by a motor. The storage cavity on the base is filled with sealing material that can be sprayed from the nozzle. The sealing material can effectively complete the local sealing of the surface of the natural gas pipeline.

[0024] Furthermore, it also includes a first telescopic rod, the first telescopic rod is embedded in the end head, one end of the first telescopic rod is fixed to the end head, and the other end thereof is fixed to the nozzle, a bellows is provided in the end head, one end of the bellows is fixed to the storage cavity, and the other end thereof is fixed to the nozzle;

[0025] A plurality of second telescopic rods are arranged on the inner wall of the nozzle, the second telescopic rods are embedded in the inner wall of the nozzle, one end of the second telescopic rod is fixed to the inner wall of the nozzle, and the other end thereof is provided with a diaphragm, the diaphragm completely covers the inner wall of the nozzle, and the edge of the diaphragm is fixed to the inner wall of the nozzle.

[0026] Since the nozzle in the present invention needs to deliver the sealing material to the surface of the natural gas pipeline, and most of the sealing materials such as sealant, sealing mud and sealing foam that can achieve local sealing cannot be sprayed to distant locations, the present invention provides an end head and a first telescopic rod and a bellows to extend the distance of the nozzle, so that the nozzle can be closer to the natural gas pipeline, thereby achieving more effective local sealing; and since the sealing material needs to be squeezed out of the sealing nozzle, an extrusion force needs to be provided, so a second telescopic rod and a diaphragm are provided on the inner wall of the nozzle, and the diaphragm is driven to reciprocate by the second telescopic rod. When the diaphragm reciprocates, it can effectively squeeze the sealing material, thereby improving the efficiency of local sealing.

[0027] Furthermore, it also includes a combustible gas detection alarm module, and the suspected leakage information generated by the judgment module is sent to the combustible gas detection alarm module. After receiving the suspected leakage information, the combustible gas detection alarm module detects the pipeline natural gas leakage status and outputs alarm information.

[0028] Furthermore, the calorific value analysis and processing system includes a calorific value analysis and processing module, the input end of which is connected to a sample gas processing system and a standard gas processing system, wherein:

[0029] The input end of the sample gas processing system is connected to a sample gas controller, and the input end of the sample gas controller is also provided with a sample gas collection interface. The sample gas processing system is used to remove impurities from the collected natural gas, and the calorific value analysis and processing module calculates the unit calorific value of the natural gas after the impurities are removed, and transmits the calculation result to the energy calculation module;

[0030] The input end of the standard gas processing system is connected to the standard gas collection port interface, and the standard gas processing system is used to remove impurities from the collected standard gas. The calorific value analysis and processing module calculates the calorific value of the standard gas after impurities are removed, and compares the calculation result with the standard value of the calorific value of the standard gas to achieve calibration of the calorific value analysis and processing module.

[0031] A centralized energy metering Internet of Things system with an embedded information security module and an embedded security module includes a user platform, a service platform, a management platform, a sensor network platform, and a perception control platform that interact in sequence;

[0032] The perception control platform is the natural gas energy metering device, and the perception control platform transmits the acquired perception information to the management platform through the sensor network platform;

[0033] The management platform includes an energy metering management system, which performs comprehensive analysis and processing on the received perception information, transmits user demand information to the user platform through the service platform, and issues control instructions to the perception control platform through the sensor network platform.

[0034] In summary, the present invention has the following beneficial effects compared with the prior art:

[0035] (1) The present invention uses an information security management module to perform information interaction object identity authentication, interaction data encryption and decryption, and interaction data integrity and validity verification on the communication data containing energy calculation results, thereby enhancing the efficiency of communication data organization and effectively eliminating incomplete and invalid interaction data. The interaction data becomes communication data after entering the communication module, so encryption and decryption of the interaction data can also effectively improve the security of the communication data, so that user information can be better protected.

[0036] (2) The detection sealer in the present invention is activated by the flow change inside the natural gas pipeline, so it has a faster response speed than the method of monitoring combustible gas in the environment, and the detection sealer can achieve local sealing of the surface of the natural gas pipeline. By local sealing of the surface of the natural gas pipeline, it can effectively prevent the natural gas in the natural gas pipeline from continuing to leak, thereby buying enough time for the maintenance of the natural gas pipeline.

[0037] (3) In the present invention, a second telescopic rod and a diaphragm are provided on the inner wall of the nozzle. The diaphragm is driven to reciprocate by the second telescopic rod. When the diaphragm reciprocates, it can effectively squeeze the sealing material, so that the sealing material can be smoothly squeezed out of the sealing nozzle, and the efficiency of local sealing is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0039] Figure 1 This is a schematic diagram of the architecture of the present invention;

[0040] Figure 2 This is a schematic diagram of the structure of the detection sealer of the present invention;

[0041] Figure 3 This is a schematic diagram of the cross-sectional structure of the detection sleeve of the present invention;

[0042] Figure 4 This is a schematic diagram of the overall structure of the detection sleeve of the present invention;

[0043] Figure 5 This is a schematic diagram of the sealing nozzle structure of the present invention;

[0044] Figure 6 This is a schematic diagram of the structure of the Internet of Things system of the present invention;

[0045] The accompanying drawings in the present invention are represented as follows: 1-fixed ring, 2-connecting rod, 3-detection sleeve, 4-sealing nozzle, 31-sealing ring, 32-cylinder, 33-slide rail, 34-vent, 35-cavity, 36-detection plate, 41-track, 42-roller, 43-base, 44-storage cavity, 45-bellows, 46-end, 47-first telescopic rod, 48-nozzle, 49-second telescopic rod, 410-diaphragm, 411-electrically controlled valve. DETAILED DESCRIPTION

[0046] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0047] Example:

[0048] like Figure 1 to Figure 5 As shown, this embodiment relates to a centralized energy metering device embedded with an information security module, including a natural gas data acquisition system, a calorific value analysis and processing system, and an energy calculation module, wherein the natural gas data acquisition system and the calorific value analysis and processing system are both connected to the energy calculation module, wherein:

[0049] The natural gas data acquisition system is used to collect the physical data of natural gas and send it to the energy calculation module;

[0050] The calorific value analysis and processing system is used to calculate the unit calorific value of natural gas and send the calculation results to the energy calculation module;

[0051] The calorific value analysis and processing system comprises a calorific value analysis and processing module, the input end of which is connected to a sample gas processing system and a standard gas processing system, wherein:

[0052] The input end of the sample gas processing system is connected to a sample gas controller, and the input end of the sample gas controller is also provided with a sample gas collection interface. The sample gas processing system is used to remove impurities from the collected natural gas, and the calorific value analysis and processing module calculates the unit calorific value of the natural gas after the impurities are removed, and transmits the calculation result to the energy calculation module;

[0053] The input end of the standard gas processing system is connected to the standard gas collection port interface, and the standard gas processing system is used to remove impurities from the collected standard gas. The calorific value analysis and processing module calculates the calorific value of the standard gas after impurities are removed, and compares the calculation result with the standard value of the calorific value of the standard gas to achieve calibration of the calorific value analysis and processing module.

[0054] An energy calculation module, used to receive the physical data of natural gas and the calculation result of the unit calorific value of natural gas, and perform natural gas energy calculation;

[0055] The energy calculation module is also connected to a communication module, which is used to send communication data. An information security management module is also provided between the communication module and the energy calculation module, and the information security management module is used to perform information interaction object identity authentication, interaction data encryption and decryption, and interaction data integrity and validity verification on the communication data.

[0056] In this embodiment, an information security management module is added between the energy calculation module and the communication module. The information security management module performs information interaction object identity authentication, interaction data encryption and decryption, and interaction data integrity and validity verification on the communication data containing the energy calculation results, thereby enhancing the efficiency of communication data sorting and effectively eliminating incomplete and invalid interaction data. The complete and valid interaction data is encrypted by the information security module before entering the communication module, which can effectively improve the security of the communication data and enable user information to be better protected.

[0057] The natural gas data acquisition system includes a flow sensor, a pressure sensor and a temperature sensor, and the flow sensor, pressure sensor and temperature sensor are all connected to the energy calculation module. The energy calculation module can calculate the operating flow rate of natural gas through the natural gas physical data collected by the flow sensor, pressure sensor and temperature sensor, and realize the conversion of the operating flow rate to the standard flow rate.

[0058] The energy calculation module realizes natural gas energy measurement by multiplying the standard flow rate within a set time period by the unit calorific value of natural gas corresponding to the standard flow rate.

[0059] It also includes a natural gas pipeline, and the flow sensor is also connected to an emergency response unit, and the emergency response unit includes a judgment module and a detection sealer, wherein:

[0060] The judgment module is used to receive the flow information sensed by the flow sensor, and when the flow information drops sharply, generate suspected leakage information and activate the detection sealer;

[0061] The detection sealer is used to detect the leakage point of the natural gas pipeline and locally seal the leakage point.

[0062] The detection sealer includes a fixing ring 1, on which a plurality of connecting rods 2 are provided, one end of the connecting rod 2 is fixed to the fixing ring 1, and the other end thereof is fixed with a detection sleeve 3, the axis of the detection sleeve 3 coincides with the axis of the fixing ring 1, the detection sleeve 3 is sleeved outside the natural gas pipeline and can slide freely along the natural gas pipeline, and the fixing ring 1 is provided with a sealing nozzle 4 that can move freely along the inner wall of the fixing ring 1, and the nozzle of the sealing nozzle 4 faces the natural gas pipeline.

[0063] The detection sleeve 3 includes a cylinder 32, both ends of which are provided with sealing rings 31, a cavity 35 is provided in the cylinder wall of the cylinder 32, a plurality of vent holes 34 are evenly distributed in the cylinder 32, the vent holes 34 are connected with the cavity 35, and a plurality of detection plates 36 are fixed in the cavity 35; a plurality of slide rails 33 are provided on the inner wall of the cylinder 32, and the slide rails 33 are embedded in the outer surface of the natural gas pipeline.

[0064] The detection plate 36 in this embodiment adopts a hydrogen sulfide detection plate. Although the content of hydrogen sulfide in natural gas is relatively small, if hydrogen sulfide can be detected when a leak occurs, it proves that the possibility of a leak is greater, the warning effect is more obvious, and the chemical reaction ability of hydrogen sulfide itself can make it easier to identify.

[0065] The sealing nozzle 4 includes a base 43, a track 41 is provided on the fixing ring 1, a roller 42 is provided in the base 43, the roller 42 is embedded in the track 41 and can move freely along the track 41, a storage cavity 44 is provided on the base 43, one end of the storage cavity 44 is fixed to the base 43, and the other end thereof is provided with an end cap 46, a nozzle 48 is fixed on the side of the end cap 46 away from the storage cavity 44, and an electric-controlled valve 411 is provided in the nozzle 48.

[0066] The first telescopic rod 47 is embedded in the end head 46, one end of the first telescopic rod 47 is fixed to the end head 46, and the other end thereof is fixed to the nozzle 48. A bellows 45 is provided in the end head 46, one end of the bellows 45 is fixed to the storage cavity 44, and the other end thereof is fixed to the nozzle 48;

[0067] A plurality of second telescopic rods 49 are provided on the inner wall of the nozzle 48. The second telescopic rods 49 are embedded in the inner wall of the nozzle 48. One end of the second telescopic rod 49 is fixed to the inner wall of the nozzle 48, and the other end thereof is provided with a diaphragm 410. The diaphragm 410 completely covers the inner wall of the nozzle 48, and the edge of the diaphragm 410 is fixed to the inner wall of the nozzle 48.

[0068] It also includes a combustible gas detection alarm module, and the suspected leakage information generated by the judgment module is sent to the combustible gas detection alarm module. After receiving the suspected leakage information, the combustible gas detection alarm module detects the pipeline natural gas leakage status and outputs alarm information.

[0069] In this embodiment, the detection of hydrogen sulfide in natural gas by the detection board 36 and the detection of combustible gas by the combustible gas detection alarm module can verify each other, thereby achieving the purpose of reducing the probability of errors in natural gas leakage detection.

[0070] The detection sealer in this embodiment is activated by the flow change inside the natural gas pipeline, so it responds faster than the method of monitoring combustible gases in the environment, and the detection sealer can achieve local sealing of the surface of the natural gas pipeline. By local sealing of the surface of the natural gas pipeline, it can effectively prevent the natural gas in the natural gas pipeline from continuing to leak, thereby buying enough time for the maintenance of the natural gas pipeline.

[0071] In this embodiment, there is another implementation mode, the emergency response unit can also be configured to be connected to a pressure sensor, and the judgment module is used to receive the flow information sensed by the pressure sensor. Since the pressure inside the natural gas pipeline is greater than the pressure outside the natural gas pipeline, the sharp drop in pressure information monitored by the pressure sensor can also promptly and effectively reflect that a natural gas pipeline has leaked. At this time, the detection sealer can also be activated to detect natural gas leaks.

[0072] The fixing ring 1 in this embodiment is sleeved on the natural gas pipeline, and the fixing ring 1 and the detection sleeve 3 are fixedly connected by the connecting rod 2. The axis of the fixing ring 1 coincides with the axis of the natural gas pipeline. When the detection sleeve 3 is driven, the fixing ring 1 can move with the detection sleeve 3. When the fixing ring 1 is driven, the detection sleeve 3 can move with the fixing ring 1. Therefore, in this embodiment, a driving force can be provided at any position of the detection sleeve 3 and the fixing ring 1 to drive the movement of the detection sealer. When the detection sleeve 3 moves to the leakage point of the natural gas pipeline, since the spacing between the fixing ring 1 and the detection sleeve 3 is fixed, the fixing ring 1 can be effectively pushed to the leakage point of the natural gas pipeline. Through the spraying of the sealing nozzle 4 on the fixing ring 1, the leakage point of the natural gas pipeline can be effectively covered, so that the leakage point of the natural gas pipeline is partially sealed. This kind of sealing is a temporary sealing, which can provide sufficient reaction time for the maintenance of the natural gas pipeline. In this embodiment, the sealing material sprayed by the sealing nozzle 4 can be a sealant, a sealing mud material and other materials, which can quickly adhere to the pipeline surface and dry thoroughly, thereby achieving a local sealing effect. The sealing material in this embodiment adopts the existing technology. The sealing material can be made by chemical reaction after mixing several chemical reagents. The chemical reagents can be stored independently and mixed after activating the detection sealer.

[0073] The detection sleeve 3 in this embodiment is provided with sealing rings 31 at both ends. The sealing rings 31 block the natural gas in the environment from escaping into the cylinder and causing misjudgment of the detection plate 36. In this embodiment, the vent hole 34 connects the environment in the cylinder 32 with the interior of the cavity 35, but the inner wall of the cylinder 32 also separates the surface of the natural gas pipeline from the interior of the cavity 35, avoiding direct contact between the detection plate 36 and the surface of the natural gas pipeline. In this way, only the natural gas ejected from the damaged part of the natural gas pipeline can contact the detection plate 36, avoiding misjudgment of the leakage position. The detection plate 36 in this embodiment can achieve the purpose of changing its conductive properties by contacting the hydrogen sulfide in the natural gas, so that it can reflect whether it is in large-scale contact with the hydrogen sulfide in the natural gas. If a large amount of contact occurs, it proves that the natural gas here has leaked.

[0074] The sealing nozzle 4 in this embodiment can slide freely on the fixed ring 1, so a base 43 is set at the contact point between the sealing nozzle 4 and the fixed ring 1. Through the roller 42 in the base 43 and the track 41 on the fixed ring 1, the base 43 can slide freely along the track 41 of the fixed ring 1, thereby driving the sealing nozzle 4 to slide freely on the fixed ring 1. The roller 42 is driven by a motor. The storage cavity 44 on the base 43 is filled with sealing material that can be sprayed from the nozzle 48. The sealing material can effectively complete the local sealing of the surface of the natural gas pipeline.

[0075] Since the nozzle 48 in this embodiment needs to deliver the sealing material to the surface of the natural gas pipeline, and most of the sealing materials such as sealants, sealing mud and sealing foams that can achieve local sealing cannot be sprayed to distant locations, in this embodiment, by providing an end head 46, and by providing a first telescopic rod 47 and a bellows 45, the distance of the nozzle 48 can be extended, and the nozzle 48 can be closer to the natural gas pipeline, thereby achieving more effective local sealing; and since the sealing material needs to be squeezed out from the sealing nozzle 4, an extrusion force needs to be provided, so a second telescopic rod 49 and a diaphragm 410 are provided on the inner wall of the nozzle, and the diaphragm 410 is driven to reciprocate by the second telescopic rod 49. When the diaphragm 410 reciprocates, it can effectively squeeze the sealing material, thereby improving the efficiency of local sealing.

[0076] The electric control valve 411 in this embodiment can effectively control the opening and closing of the nozzle 48. The electric control valve 411 adopts a model that can be configured in large quantities in the prior art to facilitate mass production of this embodiment.

[0077] like Figure 1 to Figure 6 As shown, this embodiment also relates to a centralized energy metering Internet of Things system embedded with an information security module, including a user platform, a service platform, a management platform, a sensor network platform, and a perception control platform that interact in sequence;

[0078] The perception control platform is the natural gas energy metering device, and the perception control platform transmits the acquired perception information to the management platform through the sensor network platform;

[0079] The management platform includes an energy metering management system, which performs comprehensive analysis and processing on the received perception information, transmits user demand information to the user platform through the service platform, and issues control instructions to the perception control platform through the sensor network platform.

[0080] In this embodiment, the communication data containing the energy calculation results processed by the information security management module in the natural gas energy metering device is transmitted to the external gateway via the communication module, and then transmitted to the energy metering management system via the external gateway and the communication network. The energy metering management system performs comprehensive analysis and processing on the received communication data containing the energy calculation results, and transmits the energy metering related information required by the user to the user platform through the service platform.

[0081] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method 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 in the scope of protection of the present invention.

Claims

1. A centralized energy metering device embedded with an information security module, comprising a natural gas data acquisition system, a calorific value analysis and processing system, and an energy calculation module, wherein the natural gas data acquisition system and the calorific value analysis and processing system are both connected to the energy calculation module, wherein: The natural gas data acquisition system is used to collect the physical data of natural gas and send it to the energy calculation module; The calorific value analysis and processing system is used to calculate the unit calorific value of natural gas and send the calculation results to the energy calculation module; The invention is characterized in that the energy calculation module is used to receive the physical data of natural gas and the calculation result of the unit calorific value of natural gas, and perform the natural gas energy calculation; The energy calculation module is also connected to a communication module, which is used to send communication data. An information security management module is also provided between the communication module and the energy calculation module, and the information security management module is used to perform information interaction object identity authentication, interaction data encryption and decryption, and interaction data integrity and validity verification on the communication data; The natural gas data acquisition system includes a flow sensor, a pressure sensor and a temperature sensor, and the flow sensor, the pressure sensor and the temperature sensor are all connected to the energy calculation module, and the energy calculation module can calculate the operating flow rate of natural gas through the natural gas physical data collected by the flow sensor, the pressure sensor and the temperature sensor, and realize the conversion of the operating flow rate to the standard flow rate; It also includes a natural gas pipeline, and the flow sensor is also connected to an emergency response unit, and the emergency response unit includes a judgment module and a detection sealer, wherein: The judgment module is used to receive the flow information sensed by the flow sensor, and when the flow information drops sharply, generate suspected leakage information and activate the detection sealer; The detection sealer is used to detect the leakage point of the natural gas pipeline and partially seal the leakage point; The detection sealer comprises a fixing ring (1), a plurality of connecting rods (2) are arranged on the fixing ring (1), one end of the connecting rod (2) is fixed to the fixing ring (1), and a detection sleeve (3) is fixed to the other end thereof, the axis of the detection sleeve (3) coincides with the axis of the fixing ring (1), the detection sleeve (3) is sleeved outside the natural gas pipeline and can slide freely along the natural gas pipeline, and a sealing nozzle (4) is arranged on the fixing ring (1) and can move freely along the inner wall of the fixing ring (1), and the nozzle of the sealing nozzle (4) faces the natural gas pipeline.

2. The centralized energy metering device embedded with an information security module according to claim 1, characterized in that: The detection sleeve (3) comprises a cylinder (32), both ends of the cylinder (32) are provided with sealing rings (31), a cavity (35) is provided in the cylinder wall of the cylinder (32), a plurality of vent holes (34) are evenly distributed in the cylinder (32), the vent holes (34) are connected to the cavity (35), and a plurality of detection plates (36) are fixed in the cavity (35); a plurality of slide rails (33) are provided on the inner wall of the cylinder (32), and the slide rails (33) are embedded in the outer surface of the natural gas pipeline.

3. The centralized energy metering device embedded with an information security module according to claim 1, characterized in that: The sealing nozzle (4) comprises a base (43), a track (41) is provided on the fixing ring (1), a roller (42) is provided in the base (43), the roller (42) is embedded in the track (41) and can move freely along the track (41), a storage cavity (44) is provided on the base (43), one end of the storage cavity (44) is fixed to the base (43), and the other end thereof is provided with an end head (46), a nozzle (48) is fixed on a side of the end head (46) facing away from the storage cavity (44), and an electric control valve (411) is provided in the nozzle (48).

4. The centralized energy metering device embedded with an information security module according to claim 3, characterized in that: It also includes a first telescopic rod (47), the first telescopic rod (47) being embedded in the end head (46), one end of the first telescopic rod (47) being fixed to the end head (46), and the other end of the first telescopic rod (47) being fixed to the spray head (48), a bellows (45) being provided in the end head (46), one end of the bellows (45) being fixed to the storage cavity (44), and the other end of the bellows (45) being fixed to the spray head (48); A plurality of second telescopic rods (49) are provided on the inner wall of the nozzle (48), the second telescopic rods (49) are embedded in the inner wall of the nozzle (48), one end of the second telescopic rod (49) is fixed to the inner wall of the nozzle (48), and the other end of the second telescopic rod (49) is provided with a diaphragm (410), the diaphragm (410) completely covers the inner wall of the nozzle (48), and the edge of the diaphragm (410) is fixed to the inner wall of the nozzle (48).

5. The centralized energy metering device embedded with an information security module according to claim 1, characterized in that: It also includes a combustible gas detection alarm module, and the suspected leakage information generated by the judgment module is sent to the combustible gas detection alarm module. After receiving the suspected leakage information, the combustible gas detection alarm module detects the pipeline natural gas leakage status and outputs alarm information.

6. The centralized energy metering device embedded with an information security module according to claim 1, characterized in that: The calorific value analysis and processing system comprises a calorific value analysis and processing module, the input end of which is connected to a sample gas processing system and a standard gas processing system, wherein: The input end of the sample gas processing system is connected to a sample gas controller, and the input end of the sample gas controller is also provided with a sample gas collection interface. The sample gas processing system is used to remove impurities from the collected natural gas, and the calorific value analysis and processing module calculates the unit calorific value of the natural gas after the impurities are removed, and transmits the calculation result to the energy calculation module; The input end of the standard gas processing system is connected to the standard gas collection port interface, and the standard gas processing system is used to remove impurities from the collected standard gas. The calorific value analysis and processing module calculates the calorific value of the standard gas after impurities are removed, and compares the calculation result with the standard value of the calorific value of the standard gas to achieve calibration of the calorific value analysis and processing module.

7. A centralized energy metering IoT system embedded with an information security module, characterized in that: It includes a user platform, a service platform, a management platform, a sensor network platform, and a perception control platform that interact in sequence; The perception control platform is a natural gas energy metering device as described in any one of claims 1 to 6, and the perception control platform transmits the acquired perception information to the management platform through the sensor network platform; The management platform includes an energy metering management system, which performs comprehensive analysis and processing on the received perception information, transmits user demand information to the user platform through the service platform, and issues control instructions to the perception control platform through the sensor network platform.

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