CN113467404A - Thermal power plant intelligent cloud control system and method based on safe and credible wireless communication - Google Patents
Thermal power plant intelligent cloud control system and method based on safe and credible wireless communication Download PDFInfo
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Abstract
The embodiment of the invention provides a thermal power plant intelligent cloud control system and method based on safe and credible wireless communication, wherein the system comprises a perception control layer, a network transmission layer and an application service layer; the intelligent thermal power plant cloud control system based on the safe and reliable wireless communication is used for controlling equipment in the thermal power plant; the perception control layer comprises a wireless transmitting module, a password module, a trusted edge computing gateway module, a process controller and a high-frequency data acquisition system; the network transport layer comprises a cluster of wireless communication base stations; the application service layer comprises a cloud server platform, a centralized display system and an intelligent control center; according to the embodiment of the application, the intellectualization and high-efficiency management and control capability of the intelligent cloud control system are improved through data analysis and trusted edge calculation; meanwhile, the system information safety is enhanced through the trusted root function authentication module, and the safe operation inside the thermal power plant is guaranteed.
Description
Technical Field
The invention belongs to the field of industrial intelligent control, and particularly relates to an intelligent thermal power plant cloud control method and method based on safe and reliable wireless communication.
Background
At present, along with the increasing expansion of energy demand, the unit scale of the thermal power plant is also gradually expanded, wherein the role of the automation of the control system in the thermal power plant is increasingly important. The control system automatically improves the production efficiency of electric energy and effectively controls the cost. Meanwhile, the control system has very obvious effect in the process of maintaining the operation safety and stability of the thermal power plant.
At present, a Distributed Control System (DCS) is the most common automated control system for thermal power plants. The system is an automatic control system which is mainly characterized in that a plurality of computers respectively control a plurality of control loops in the production process and can intensively acquire data, intensively manage and intensively control. With the vigorous development of novel internet technologies such as mobile internet, cloud computing, big data and internet of things, the climax of intelligent construction is brought up in each field, and the demand for intelligent power plants in the power generation field is more and more large. The advanced communication technology is utilized to realize accurate and reliable information exchange and real-time sharing, and the cloud intelligent control platform is utilized to carry out big data analysis, machine learning and optimization strategies, thereby providing scientific guidance for the operation of the coal-fired unit. Meanwhile, with the rapid development of the information technology in the field of industrial control, the physical isolation of the control system is broken, the openness of the control system brings convenience, meanwhile, the safety exposure area is also enlarged, and the safety risk is increased day by day.
As shown in fig. 1, in the prior art, an existing thermal power plant control system is basically composed of a field level network, a control level network, a monitoring level network and a management layer network.
First, the field level equipment is typically located near the controlled production process. Mainly comprises various field instruments, sensors, transmitters and actuators, which convert various physical quantities of a production process into electric signals.
And the control stage mainly comprises a field control station and a data acquisition station. In a power plant, a field control station and a data acquisition station are generally installed in a centralized manner in an electronic equipment room located behind a main control room. The field control station receives the control quantity calculated by the field device according to a certain control strategy and sends the control quantity back to the field actuator. The site control station can simultaneously complete continuous control, sequential control or logic control functions. The data acquisition station receives a large amount of process information and transmits the process information to operators through the monitoring-level equipment, and the data acquisition station does not directly complete a control function.
And thirdly, the main equipment of the monitoring stage comprises auxiliary equipment such as an operator station, an engineer station, a history station, a computing station and the like. 1. The operator station implements a human interface device for communicating information between the operator and the distributed control system. The operator monitors and controls the whole production process through the operator station, can observe the operation condition of the production process on the operator station, read out the numerical value and the state of each process variable, judge whether each control loop works normally, and can switch between a manual control mode and an automatic control mode at any time, modify a set value, adjust a control quantity and operate field equipment so as to realize the intervention on the production process. 2. The engineer station is a workstation configured for configuration, debugging and maintenance of the distributed control system by a control engineer. 3. The main tasks of the historical station are to store real-time data of process control, real-time alarm, real-time trend and other data closely related to production, and the data are used for accident analysis, performance optimization calculation, fault diagnosis and the like.
Disclosure of Invention
In order to solve the technical problems in the prior art, the application provides an intelligent thermal power plant cloud control method based on safe and reliable wireless communication.
The embodiment of the invention provides a thermal power plant intelligent cloud control system based on safe and credible wireless communication, which is characterized by comprising a perception control layer, a network transmission layer and an application service layer; the intelligent thermal power plant cloud control system based on the safe and reliable wireless communication is used for controlling equipment in the thermal power plant;
the perception control layer comprises a wireless transmitting module, a password module, a trusted edge computing gateway module, a process controller and a high-frequency data acquisition system;
the network transport layer comprises a cluster of wireless communication base stations;
the application service layer comprises a cloud server platform, a centralized display system and an intelligent control center.
The high-frequency data acquisition system is used for acquiring data of equipment measurement implementation temperature, pressure and high-density acquisition frequency of images in a thermal power plant to obtain initial data;
the process controller is used for controlling the sampling frequency and the adoption mode of the high-frequency data acquisition system;
the trusted edge computing gateway module is compatible with multiple industrial protocols and used for sending the acquired initial data to an edge computing center through a standard Internet of things protocol; the edge computing center is used for providing analysis and calculation of initial data nearby to obtain post-processing data so as to reduce computing pressure of the cloud server platform;
the cipher module is used for acquiring post-processing data calculated by the edge calculation center in real time, encrypting the post-processing data calculated and processed by the trusted edge calculation gateway module by adopting a data encryption algorithm, realizing encryption processing on uplink and downlink data, and sending the encrypted post-processing data to the wireless transmitting module;
the wireless transmitting module is used for directly uploading the encrypted post-processing data to the cloud server platform;
and the cloud server platform receives the post-processing data and then performs calculation processing.
Preferably, as one possible embodiment; the wireless transmitting module, the password module and the trusted edge computing gateway module are arranged on the local machine room side;
the two modules of the process controller and the high-frequency data acquisition system are arranged close to the equipment side.
Preferably, as one possible embodiment; the intelligent thermal power plant cloud control system based on the safe and reliable wireless communication further comprises a client; the client is used for acquiring information data displayed on the cloud server platform in real time and simultaneously acquiring and downloading the information data in real time; the client is also used for analyzing and obtaining a corresponding control instruction according to the information data and sending the control instruction to the perception control layer through the network transmission layer; and the perception control layer is also used for accessing the control instruction and realizing terminal control on equipment in the thermal power plant through a process controller in the perception control layer.
Preferably, as one possible embodiment; the high-frequency data acquisition system comprises a temperature sensor, a pressure sensor and an image sensor; the process controller includes a PLC control system or a DCS control system.
Preferably, as one possible embodiment; the process controller is also provided with a trusted root function authentication module; the trusted root function authentication module is used for identifying whether the loaded software file is tampered or not, and continuously executing the subsequent operation of starting the embedded operating system when the currently loaded software file is judged to be the correct system file through identification; and refusing to load the current system file when the currently loaded software file is identified as the wrong system file.
Preferably, as one possible embodiment; the trusted root function authentication module comprises a CPU, a read-only ROM, a password chip and a FLASH memory; the FLASH memory is used for temporarily storing the embedded operating system; the read-only ROM is a non-rewritable ROM;
the trusted root function authentication module is used for specifically identifying the PLC program corresponding to the software file; when the process controller is started, the CPU is used for firstly executing the verification of the related credible measurement codes in the read-only ROM and then initializing the password chip; the CPU is also used for reading the embedded operating system stored in the FLASH memory and acquiring and calculating the integrity reference value of the embedded operating system in real time; performing hash calculation according to a PLC program corresponding to the current software file to obtain a metric value; if the measured value of the PLC program corresponding to the current software file is inquired to be consistent with the integrity reference value, the PLC program corresponding to the software file is operated; and if the two are not consistent, refusing to run the PLC program corresponding to the software file.
Preferably, as one possible embodiment; the wireless communication base station cluster is a plurality of groups, and comprises a plurality of wireless communication base stations; the arrangement of the wireless communication base stations in the thermal power plant is divided into three layers of spaces from top to bottom according to the space in the thermal power plant, wherein the three layers of spaces are respectively a high-layer base station, a middle-layer base station and a low-layer base station; and the number of the wireless communication base stations arranged in the middle base station is higher than that of the wireless communication base stations arranged in the upper base station and that of the wireless communication base stations arranged in the lower base station.
Preferably, as one possible embodiment; the intelligent thermal power plant cloud control system based on the safe and reliable wireless communication further comprises an equipment layer formed by equipment in the thermal power plant; the high-frequency data acquisition systems arranged among the devices in the device layer are directly connected through coaxial cables; the control layer adopts a star network topological structure, and communication among all the subunits is required to be communicated with the data center node in a wireless communication mode.
Correspondingly, the invention provides a thermal power plant intelligent cloud control method based on safe and reliable wireless communication, which utilizes a thermal power plant intelligent cloud control system based on safe and reliable wireless communication and mainly comprises the following processing steps:
step S1, the high-frequency data acquisition system carries out data acquisition on the high-density acquisition frequency of the image, the temperature and the pressure of equipment measurement in the thermal power plant to obtain initial data;
step S2, the process controller controls the sampling frequency and the adoption mode of the high-frequency data acquisition system;
step S3, the trusted edge computing gateway module is compatible with a plurality of industrial protocols and sends the acquired initial data to an edge computing center through a standard Internet of things protocol; the edge computing center is used for providing analysis and calculation of initial data nearby to obtain post-processing data so as to reduce computing pressure of the cloud server platform;
step S4, the cryptographic module acquires the post-processing data calculated by the edge calculation center in real time, encrypts the post-processing data calculated by the trusted edge calculation gateway module by adopting a data encryption algorithm to realize the encryption of the uplink and downlink data, and sends the encrypted post-processing data to the wireless transmitting module;
step S5, the wireless transmitting module directly uploads the encrypted post-processing data to a cloud server platform;
and step S6, the cloud server platform receives the post-processing data and then carries out calculation processing.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the embodiment of the invention provides a thermal power plant intelligent cloud control system based on safe and trusted wireless communication, which comprises a perception control layer, a network transmission layer and an application service layer; the intelligent thermal power plant cloud control system based on the safe and reliable wireless communication is used for controlling equipment in the thermal power plant; the perception control layer comprises a wireless transmitting module, a password module, a trusted edge computing gateway module, a process controller and a high-frequency data acquisition system; the network transport layer comprises a cluster of wireless communication base stations; the application service layer comprises a cloud server platform, a centralized display system and an intelligent control center; the embodiment of the invention provides a brand-new network control architecture, ensures smooth intelligent control and communication of a thermal power plant, and simultaneously designs a system consisting of a wireless transmitting module, a password module, a trusted edge computing gateway module, a process controller, a high-frequency data acquisition system and the like on a perception control layer, thereby ensuring sufficient computing capability, enhancing information security prevention and control performance and ensuring safe operation of a unit.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic main structural diagram of an intelligent cloud control system of a thermal power plant based on secure and trusted wireless communication according to an embodiment of the present application;
fig. 2 is a schematic main architecture diagram of a perception control layer in an intelligent cloud control system of a thermal power plant based on secure and trusted wireless communication according to an embodiment of the present application;
fig. 3 is a schematic diagram of a main architecture of a root-of-trust function authentication module of a process controller in an intelligent cloud control system of a thermal power plant based on secure trusted wireless communication according to an embodiment of the present application;
fig. 4 is a schematic main architecture diagram of an application service layer in an intelligent cloud control system of a thermal power plant based on secure and trusted wireless communication according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a network topology of an intelligent thermal power plant cloud control system based on secure and trusted wireless communication according to an embodiment of the application;
fig. 6 is a schematic diagram of a wireless communication base station cluster distribution of a network transport layer in an intelligent cloud control system of a thermal power plant based on secure and trusted wireless communication according to an embodiment of the present application;
fig. 7 is a flowchart illustrating main operation steps of an intelligent thermal power plant cloud control method based on secure and trusted wireless communication according to an embodiment of the present application.
Reference numeral: a perception control layer 100; a wireless transmission module 101; a cryptographic module 102; a trusted edge computing gateway module 103; a process controller 104; a CPU 1041; a read only ROM 1042; a cryptographic chip 1043; a FLASH memory 1044; a high frequency data acquisition system 105; a network transport layer 200; an application service layer 300; a cloud server platform 301; a centralized display system 302; an intelligent control center 303; a client 400; air distribution system a 1; a deslagging system A2; desulfurization system a 3; dust removal system a 4; smoke detection system a 5; turbine system a 6; boiler system a 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Example one
Referring to fig. 1 to fig. 4, an embodiment of the present invention provides a thermal power plant intelligent cloud control system based on secure and trusted wireless communication, including a sensing control layer 100, a network transport layer 200, and an application service layer 300; the intelligent cloud control system based on the safe and trusted wireless communication is used for controlling equipment in the thermal power plant (wherein the equipment side mainly comprises an air distribution system A1, a deslagging system A2, a desulphurization system A3, a dedusting system A4 or a flue gas detection system A5, a steam turbine system A6 and a boiler system A7 in the thermal power plant);
the perception control layer 100 comprises a wireless transmitting module 101, a password module 102, a trusted edge computing gateway module 103, a process controller 104 and a high-frequency data acquisition system 105;
the network transport layer 200 comprises a cluster of wireless communication base stations;
the application service layer 300 includes a cloud server platform 301, a centralized display system 302, and an intelligent control center 303 (see also fig. 4).
In a specific scheme of the sensing control layer 100, the sensing control layer mainly includes a wireless transmitting module 101, a cryptographic module 102, a trusted edge computing gateway module 103, a process controller 104 and a high-frequency data acquisition system 105;
wherein: the network topology of the perception control layer is a ring network topology, and the network topology of the network transmission layer is a star network topology. The intelligent cloud control system of the thermal power plant based on the safe and reliable wireless communication mainly adopts a multilayer topological structure combining ring network topology and centralized control star network topology, realizes an intelligent and efficient network architecture, and finally ensures the effective implementation of the intelligent cloud control of the thermal power plant.
The structural layout of the optimized sensing control layer emphasizes improvement of data processing, information automation, safety protection and wireless transmission capability of the layer. The optimized perception control layer mainly comprises five equipment components such as a wireless transmitting module 101, a password module 102, a trusted edge computing gateway module 103, a process controller 104 and a high-frequency data acquisition system 105, and has the capabilities of supporting various industrial protocols, providing equipment access, data acquisition, data forwarding, cooperative data processing, local caching, safety encryption protection, 5G/4G/wireless transmission, network interruption and continuous transmission, remote configuration management, over-threshold alarm, interference resistance and the like. Meanwhile, the optimized sensing control layer cancels local operator stations and engineer stations, reduces operators and saves personnel cost.
Referring to fig. 6, in a specific structure of the network transport layer 200, the wireless communication base stations are clustered into multiple groups, and the wireless communication base station cluster includes multiple wireless communication base stations; the arrangement of the wireless communication base stations in the thermal power plant is divided into three layers of spaces from top to bottom according to the space in the thermal power plant, wherein the three layers of spaces are respectively a high-layer base station, a middle-layer base station and a low-layer base station; and the number of the wireless communication base stations arranged in the middle base station is higher than that of the wireless communication base stations arranged in the upper base station and that of the wireless communication base stations arranged in the lower base station.
It should be noted that in a specific technical solution of the embodiment of the present invention, the above-mentioned arrangement manner of the base station groups in the plant area is based on an existing high-low dislocation arrangement structure in the thermal power plant, and specifically, a three-dimensional spatial wireless communication base station cluster arrangement system with the middle-layer base station as a core is established. Wherein, the arrangement of the middle base station needs to meet the requirement that the coverage rate of wireless signals is more than or equal to 150 percent.
In a specific scheme of the application service layer 300, the application service layer 300 is mainly composed of a cloud server platform 301 (i.e., a private cloud service platform), a centralized display system 302 established based on the private cloud service platform, and an intelligent control center 303. The cloud server platform 301 can provide strong data processing capacity, uniformly perform data modeling, construct a uniform data storage system in a power plant, and lay a foundation for presenting the multidimensional value of data. Meanwhile, the cloud server platform 301 can be directly accessed to the internet, and network security is guaranteed through network security equipment such as a network firewall and network auditing. And the security protection work of the cloud service platform is jointly responsible according to the trusted root and the 'cloud security' virus library of the internet. The cloud security protection technology is characterized in that an internet virus database is led into an equipment terminal in a cloud service platform in real time, the internet becomes huge antivirus software, a cloud-network-terminal integrated defense system is constructed by means of the continuously updated virus database of the internet, and computer viruses of any port in the cloud service platform are actively and actively identified.
And the stable operation of the system is ensured through a unified data management monitoring system. The centralized display system 302 can integrate parameter detection, automatic condition, chain protection, sequential control, display, alarm, report setting and monitoring management into a whole, can realize real-time monitoring and ultra-large screen display of the operation condition in the range of a whole power plant, and can realize functions of intelligent emission analysis prediction of flue gas, situation perception, predictive maintenance of the whole life cycle, optimization and modulation of operation strategies, real-time control/decision support and the like by combining a big data analysis result of a cloud service platform. The operator can monitor and control the entire system in real time from a centralized location, control any one of the individual systems based on the complexity and associated settings of each system, and automatically perform the associated operations or tasks, which can also be automatically performed by operator commands. The automation level is improved, the operation quality and efficiency of the unit are improved, the number of operators of the unit is reduced greatly, and basic conditions are created for the transition of the operation management mode of monitoring and controlling one unit from a thermal power plant to a duty worker.
Meanwhile, the access of a client (including but not limited to communication equipment such as a mobile phone, a notebook computer and the like) to a centralized control center network system within a preset range of a factory can be realized by depending on a wireless communication technology; the safety of the wireless communication network access is ensured by technical means of limiting the access network IP address field, hiding the network, judging the positioning distance and the like. The function can greatly facilitate the work such as maintenance in the existing thermal power plant. When the maintainers reach the vicinity of the accident equipment, the maintainers can directly access the access cloud service platform to enter the control system after the movable equipment is authenticated, and can quickly look up data such as historical parameters, fault codes, field video images and the like of the equipment for quickly guiding maintenance. Meanwhile, after the maintenance is finished, the equipment can be directly debugged through the mobile equipment, so that communication delay caused by interphone communication and operation faults possibly caused by information asymmetry of two communication parties are avoided, and the safety of maintenance personnel is effectively guaranteed.
Preferably, as one possible embodiment; the wireless transmitting module 101, the password module 102 and the trusted edge computing gateway module 103 are arranged on the local computer room side; the two modules, the process controller 104 and the high-frequency data acquisition system 105, are arranged on the device side.
The high-frequency data acquisition system 105 is used for acquiring data of equipment measurement implementation temperature, pressure and high-density acquisition frequency of images in a thermal power plant to obtain initial data; wherein the high-frequency data acquisition system 105 comprises a temperature sensor, a pressure sensor and an image sensor; the process controller 104 includes a PLC control system or a DCS control system.
The process controller 104 is configured to control a sampling frequency and a sampling mode of the high-frequency data acquisition system 105;
the trusted edge computing gateway module 103 is configured to be compatible with multiple industrial protocols, and send the acquired initial data to an edge computing center through a standard internet of things protocol; the edge computing center is used for providing analysis and calculation of initial data nearby to obtain post-processing data so as to reduce computing pressure of the cloud server platform;
the cryptographic module 102 is configured to obtain post-processing data calculated by the edge computing center in real time, encrypt the post-processing data calculated and processed by the trusted edge computing gateway module 103 by using a data encryption algorithm, so as to encrypt uplink and downlink data, and send the encrypted post-processing data to the wireless transmitting module 101;
the wireless transmitting module 101 is configured to directly upload the encrypted post-processing data to the cloud server platform 301;
and the cloud server platform 301 receives the post-processing data and then performs calculation processing.
It should be noted that the edge computing gateway is compatible with multiple industrial protocols such as Modbus, and can easily realize multi-mode device information collection, and then send the device information to the edge computing center through a standard internet of things protocol. The edge computing center provides service capabilities such as data depth analysis, filtering and machine learning nearby, so that the time delay defect caused by data uploading and issuing is effectively avoided, and the computing pressure of a cloud server platform is greatly reduced; the cryptographic module pays attention to the data security of the edge computing resource pool in real time, and encrypts the data information preprocessed by the edge computing gateway by adopting a data encryption algorithm so as to realize the encryption processing of the uplink data and the downlink data. Meanwhile, the authority of each user in the access network is strictly controlled, the network behavior of the user is analyzed, and the safety of wireless transmission data is ensured. And finally, the encrypted data is directly uploaded to a cloud server platform through a wireless transmitting module.
Facing to the new requirements of the intelligent technology of the thermal power plant, a large number of data measuring points are required to be added, the data acquisition frequency is increased, and a high-frequency data acquisition system mainly comprises a plurality of sensors such as temperature, pressure and images; the sampling frequency and the adoption mode of the sensor are controlled by a process controller, and the process controller can be a PLC/DCS; in order to increase the safety of the industrial control system, a trusted module is added in the controller; the two parts are arranged directly against the equipment side. And an edge computing gateway, a password module and a wireless transmitting module are arranged on the local computer room side. The edge computing gateway is compatible with various industrial protocols such as Modbus and the like, multi-mode equipment information collection is easily achieved, and then the equipment information is sent to the edge computing center through a standard Internet of things protocol. The edge computing center provides service capabilities such as data depth analysis, filtering and machine learning nearby, so that the time delay defect caused by data uploading and issuing is effectively avoided, and the computing pressure of a cloud server platform is greatly reduced; the cryptographic module pays attention to the data security of the edge computing resource pool in real time, and encrypts the data information preprocessed by the edge computing gateway by adopting a data encryption algorithm so as to realize the encryption processing of the uplink data and the downlink data. Meanwhile, the authority of each user in the access network is strictly controlled, the network behavior of the user is analyzed, and the safety of wireless transmission data is ensured. And finally, the encrypted data is directly uploaded to a cloud server platform through a wireless transmitting module. Different from the traditional DCS, the field data are transmitted to the cloud service platform for centralized processing through the wireless transmitting module, and the local machine room does not need an operator station and a working room station.
The thermal power plant intelligent cloud control system based on the safe and trusted wireless communication further comprises a client 400; the client 400 is configured to obtain information data displayed on the cloud server platform 301 in real time, and simultaneously obtain and download the information data in real time; the client is further configured to obtain a corresponding control instruction according to information data analysis, and send the control instruction to the perception control layer 100 through the network transport layer 200; the perceptual control layer 100 is further configured to access the control instruction, and implement terminal control on the devices in the thermal power plant through the process controller 104 in the perceptual control layer 100.
Preferably, as one possible embodiment; a trusted root function authentication module is also arranged in the process controller 104; the trusted root function authentication module is used for identifying whether the loaded software file is tampered or not, and continuously executing the subsequent operation of starting the embedded operating system when the currently loaded software file is judged to be the correct system file through identification; and refusing to load the current system file when the currently loaded software file is identified as the wrong system file.
Preferably, as one possible embodiment; the trusted root function authentication module comprises a CPU1041, a read-only ROM1042, a password chip 1043 and a FLASH memory 1044; the FLASH memory is used for temporarily storing the embedded operating system; the read-only ROM is a non-rewritable ROM;
the trusted root function authentication module is used for specifically identifying the PLC program corresponding to the software file; when the process controller is started, the CPU is used for firstly executing the verification of the related credible measurement codes in the read-only ROM and then initializing the password chip; the CPU is also used for reading the embedded operating system stored in the FLASH memory and acquiring and calculating the integrity reference value of the embedded operating system in real time; performing hash calculation according to a PLC program corresponding to the current software file to obtain a metric value; if the measured value of the PLC program corresponding to the current software file is inquired to be consistent with the integrity reference value, the PLC program corresponding to the software file is operated; and if the two are not consistent, refusing to run the PLC program corresponding to the software file.
Preferably, as one possible embodiment; referring to fig. 5, the thermal power plant intelligent cloud control system based on the secure and trusted wireless communication further includes an equipment layer formed by equipment in the thermal power plant; the high-frequency data acquisition systems 105 arranged among the devices in the device layer are directly connected through coaxial cables; the control layer adopts a star network topological structure, and communication among all the subunits is required to be communicated with the data center node in a wireless communication mode.
Referring to fig. 7, correspondingly, based on the same principle, the invention further provides a thermal power plant intelligent cloud control method based on secure and trusted wireless communication, wherein the thermal power plant intelligent cloud control system based on secure and trusted wireless communication is utilized in the method, and the method mainly comprises the following processing steps:
step S1, the high-frequency data acquisition system 105 carries out data acquisition on the high-density acquisition frequency of the temperature, pressure and image measured by the equipment in the thermal power plant to obtain initial data;
step S2, the process controller 104 controls the sampling frequency and the adoption mode of the high-frequency data acquisition system 105;
step S3, the trusted edge computing gateway module 103 is compatible with a plurality of industrial protocols and sends the acquired initial data to an edge computing center through a standard Internet of things protocol; the edge computing center is used for providing analysis and calculation of initial data nearby to obtain post-processing data so as to reduce computing pressure of the cloud server platform;
step S4, the cryptographic module 102 acquires the post-processing data calculated by the edge computing center in real time, encrypts the post-processing data calculated by the trusted edge computing gateway module 103 by using a data encryption algorithm, so as to encrypt the uplink and downlink data, and sends the encrypted post-processing data to the wireless transmitting module 101;
step S5, the wireless transmitting module 101 directly uploads the encrypted post-processing data to the cloud server platform 301;
and step 6, the cloud server platform 301 receives the post-processing data and then performs calculation processing.
The embodiment of the invention provides a thermal power plant intelligent cloud control method based on safe and credible wireless communication, which simultaneously solves the following defects of the existing DCS: 1. data transmission capability is insufficient. Along with the gradual increase of data generated on the basic equipment layer, the data is uploaded to the monitoring layer and the management layer at a high speed and with low delay. At present, the existing edge computing gateway is difficult to meet the effectiveness requirement of mass data transmission, and the intelligent cloud control method provided by the embodiment of the invention establishes a more efficient network system architecture to meet the mass data transmission. 2. The computing power is insufficient. Large amounts of data resources lack integration, data scatter and coherence. The central control processing unit has insufficient computing power, simple receiving, processing and feedback capabilities, no machine learning capability and insufficient data mining degree. It is difficult to obtain useful information therefrom to assist management in making effective decisions. 3. And the network security is weak. Under increasingly severe industrial control information safety situation, it is difficult to effectively take risk elimination control measures to guarantee safe operation of the unit in real time. 4. The operating personnel are numerous, and the intelligent level is low. The thermal power system is complex, and the physical distance between the devices is large. In order to reduce the wiring cost, a control room is arranged on the spot, and the environment of a working site is poor. Each control room is equipped with a 24-hour attendant, and the number of operators is large.
Finally, a thermal power plant intelligent cloud control system based on a safe and reliable wireless communication technology is established, a control network is accessed to a plurality of client sides (intelligent mobile phones or computers) at any time and any place, people, machines and equipment units which are widely distributed are connected, the requirements of equipment interconnection and remote interaction real-time application in an industrial environment are met, intelligent centralized control in the thermal power plant is realized, and a unified big data driving management and decision management platform is established.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A thermal power plant intelligent cloud control system based on safe and credible wireless communication is characterized by comprising a perception control layer, a network transmission layer and an application service layer; the intelligent thermal power plant cloud control system based on the safe and reliable wireless communication is used for controlling equipment in the thermal power plant;
the perception control layer comprises a wireless transmitting module, a password module, a trusted edge computing gateway module, a process controller and a high-frequency data acquisition system;
the network transport layer comprises a cluster of wireless communication base stations;
the application service layer comprises a cloud server platform, a centralized display system and an intelligent control center;
the high-frequency data acquisition system is used for acquiring data of equipment measurement implementation temperature, pressure and high-density acquisition frequency of images in a thermal power plant to obtain initial data;
the process controller is used for controlling the sampling frequency and the adoption mode of the high-frequency data acquisition system;
the trusted edge computing gateway module is compatible with multiple industrial protocols and used for sending the acquired initial data to an edge computing center through a standard Internet of things protocol; the edge computing center is used for providing analysis and calculation of initial data nearby to obtain post-processing data so as to reduce computing pressure of the cloud server platform;
the cipher module is used for acquiring post-processing data calculated by the edge calculation center in real time, encrypting the post-processing data calculated and processed by the trusted edge calculation gateway module by adopting a data encryption algorithm, realizing encryption processing on uplink and downlink data, and sending the encrypted post-processing data to the wireless transmitting module;
the wireless transmitting module is used for directly uploading the encrypted post-processing data to the cloud server platform;
and the cloud server platform receives the post-processing data and then performs calculation processing.
2. The intelligent thermal power plant cloud control system based on the safe and trusted wireless communication is characterized in that the wireless transmitting module, the password module and the trusted edge computing gateway module are arranged on the machine room side;
the two modules of the process controller and the high-frequency data acquisition system are arranged close to the equipment side.
3. The thermal power plant intelligent cloud control system based on the secure and trusted wireless communication is characterized by further comprising a client;
the client is used for acquiring information data displayed on the cloud server platform in real time and simultaneously acquiring and downloading the information data in real time; the client is also used for analyzing and obtaining a corresponding control instruction according to the information data and sending the control instruction to the perception control layer through the network transmission layer; and the perception control layer is also used for accessing the control instruction and realizing terminal control on equipment in the thermal power plant through a process controller in the perception control layer.
4. The intelligent thermal power plant cloud control system based on the safe and reliable wireless communication is characterized in that the high-frequency data acquisition system comprises a temperature sensor, a pressure sensor and an image sensor; the process controller includes a PLC control system or a DCS control system.
5. The thermal power plant intelligent cloud control system based on the safe trusted wireless communication is characterized in that a trusted root function authentication module is further arranged in the process controller; the trusted root function authentication module is used for identifying whether the loaded software file is tampered or not, and continuously executing the subsequent operation of starting the embedded operating system when the currently loaded software file is judged to be the correct system file through identification; and refusing to load the current system file when the currently loaded software file is identified as the wrong system file.
6. The thermal power plant intelligent cloud control system based on the secure trusted wireless communication is characterized in that the trusted root function authentication module comprises a CPU, a read-only ROM, a password chip and a FLASH memory; the FLASH memory is used for temporarily storing the embedded operating system; the read-only ROM is a non-rewritable ROM;
the trusted root function authentication module is used for specifically identifying the PLC program corresponding to the software file; when the process controller is started, the CPU is used for firstly executing the verification of the related credible measurement codes in the read-only ROM and then initializing the password chip; the CPU is also used for reading the embedded operating system stored in the FLASH memory and acquiring and calculating the integrity reference value of the embedded operating system in real time; performing hash calculation according to a PLC program corresponding to the current software file to obtain a metric value; if the measured value of the PLC program corresponding to the current software file is inquired to be consistent with the integrity reference value, the PLC program corresponding to the software file is operated; and if the two are not consistent, refusing to run the PLC program corresponding to the software file.
7. The intelligent thermal power plant cloud control system based on the safe and trusted wireless communication is characterized in that the wireless communication base stations are clustered into multiple groups, and each wireless communication base station cluster comprises a plurality of wireless communication base stations; the arrangement of the wireless communication base stations in the thermal power plant is divided into three layers of spaces from top to bottom according to the space in the thermal power plant, wherein the three layers of spaces are respectively a high-layer base station, a middle-layer base station and a low-layer base station; and the number of the wireless communication base stations arranged in the middle base station is higher than that of the wireless communication base stations arranged in the upper base station and that of the wireless communication base stations arranged in the lower base station.
8. The intelligent thermal power plant cloud control system based on the secure and trusted wireless communication is characterized by further comprising a device layer formed by devices in the thermal power plant; the high-frequency data acquisition systems arranged among the devices in the device layer are directly connected through coaxial cables; the control layer adopts a star network topological structure, and communication among all the subunits is required to be communicated with the data center node in a wireless communication mode.
9. The thermal power plant intelligent cloud control method based on the safe and reliable wireless communication is characterized by utilizing the thermal power plant intelligent cloud control system based on the safe and reliable wireless communication as claimed in any one of claims 1 to 8, and mainly comprises the following processing steps:
step S1, the high-frequency data acquisition system carries out data acquisition on the high-density acquisition frequency of the image, the temperature and the pressure of equipment measurement in the thermal power plant to obtain initial data;
step S2, the process controller controls the sampling frequency and the adoption mode of the high-frequency data acquisition system;
step S3, the trusted edge computing gateway module is compatible with a plurality of industrial protocols and sends the acquired initial data to an edge computing center through a standard Internet of things protocol; the edge computing center is used for providing analysis and calculation of initial data nearby to obtain post-processing data so as to reduce computing pressure of the cloud server platform;
step S4, the cryptographic module acquires the post-processing data calculated by the edge calculation center in real time, encrypts the post-processing data calculated by the trusted edge calculation gateway module by adopting a data encryption algorithm to realize the encryption of the uplink and downlink data, and sends the encrypted post-processing data to the wireless transmitting module;
step S5, the wireless transmitting module directly uploads the encrypted post-processing data to a cloud server platform;
and step S6, the cloud server platform receives the post-processing data and then carries out calculation processing.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115484514A (en) * | 2022-09-16 | 2022-12-16 | 微连锁(北京)科技发展有限公司 | Wellhead Internet of things private network wireless communication system and method and wellhead wireless communication terminal |
| CN115878186A (en) * | 2022-12-09 | 2023-03-31 | 广东知业科技有限公司 | Point location searching method based on PLC and edge calculation register |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170005515A1 (en) * | 2015-07-04 | 2017-01-05 | Dean Sanders | Renewable energy integrated storage and generation systems, apparatus, and methods with cloud distributed energy management services |
| CN109557862A (en) * | 2018-12-28 | 2019-04-02 | 苏州易助能源管理有限公司 | A kind of photovoltaic plant power monitor device and method based on edge calculations |
| CN110933176A (en) * | 2019-12-05 | 2020-03-27 | 国家电网有限公司 | Electric power internet of things management and service platform |
| CN111769647A (en) * | 2020-07-31 | 2020-10-13 | 南京征途信息技术有限公司 | Design method of edge controller of transformer and distribution station |
| CN112054895A (en) * | 2020-08-10 | 2020-12-08 | 国电南瑞科技股份有限公司 | Trusted root construction method and application |
| CN112234715A (en) * | 2020-11-03 | 2021-01-15 | 江苏深瑞汇阳能源科技有限公司 | Intelligent gateway modular system for power distribution station room |
| CN112511306A (en) * | 2020-11-03 | 2021-03-16 | 中国航空工业集团公司西安航空计算技术研究所 | Safe operation environment construction method based on mixed trust model |
-
2021
- 2021-07-27 CN CN202110853022.2A patent/CN113467404A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170005515A1 (en) * | 2015-07-04 | 2017-01-05 | Dean Sanders | Renewable energy integrated storage and generation systems, apparatus, and methods with cloud distributed energy management services |
| CN109557862A (en) * | 2018-12-28 | 2019-04-02 | 苏州易助能源管理有限公司 | A kind of photovoltaic plant power monitor device and method based on edge calculations |
| CN110933176A (en) * | 2019-12-05 | 2020-03-27 | 国家电网有限公司 | Electric power internet of things management and service platform |
| CN111769647A (en) * | 2020-07-31 | 2020-10-13 | 南京征途信息技术有限公司 | Design method of edge controller of transformer and distribution station |
| CN112054895A (en) * | 2020-08-10 | 2020-12-08 | 国电南瑞科技股份有限公司 | Trusted root construction method and application |
| CN112234715A (en) * | 2020-11-03 | 2021-01-15 | 江苏深瑞汇阳能源科技有限公司 | Intelligent gateway modular system for power distribution station room |
| CN112511306A (en) * | 2020-11-03 | 2021-03-16 | 中国航空工业集团公司西安航空计算技术研究所 | Safe operation environment construction method based on mixed trust model |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115484514A (en) * | 2022-09-16 | 2022-12-16 | 微连锁(北京)科技发展有限公司 | Wellhead Internet of things private network wireless communication system and method and wellhead wireless communication terminal |
| CN115484514B (en) * | 2022-09-16 | 2023-06-09 | 微连锁(北京)科技发展有限公司 | Wellhead internet of things private network wireless communication system, wellhead internet of things private network wireless communication method and wellhead wireless communication terminal |
| CN115878186A (en) * | 2022-12-09 | 2023-03-31 | 广东知业科技有限公司 | Point location searching method based on PLC and edge calculation register |
| CN115878186B (en) * | 2022-12-09 | 2023-10-13 | 广东知业科技有限公司 | Method for searching point positions of calculation register based on PLC and edge |
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