CN112468592B - Terminal online state detection method and system based on electric power information acquisition - Google Patents
Terminal online state detection method and system based on electric power information acquisition Download PDFInfo
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- CN112468592B CN112468592B CN202011370549.1A CN202011370549A CN112468592B CN 112468592 B CN112468592 B CN 112468592B CN 202011370549 A CN202011370549 A CN 202011370549A CN 112468592 B CN112468592 B CN 112468592B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/535—Tracking the activity of the user
Abstract
The invention discloses a terminal online state detection method and system based on electric power information acquisition, wherein the online state detection system is used for an electric power acquisition system; the terminal online state detection system comprises: the gateway is connected with the management module, the terminal state management module and the terminal state reading module; the gateway connection management module is positioned in a communication part of the new generation power utilization information acquisition system and is responsible for establishing long connection with the terminal and passively monitoring the long connection state; the terminal state management module is positioned in the acquisition front cluster and used for actively maintaining the online state of the terminal and pushing the state to a message queue; the terminal state reading module is positioned in the acquisition front cluster and used for processing the update message of the terminal state and adopting different state synchronization modes according to different service types. The invention can ensure the accuracy and the real-time performance of the terminal on-line state identification to the maximum extent through multiple points and multiple modes, passive confirmation and active patrol.
Description
Technical Field
The invention relates to the technical field of power internet of things, in particular to a terminal online state detection method and system based on power information acquisition.
Background
According to daily routing inspection, operation monitoring, safety audit, vulnerability mining and rectification reinforcement for strengthening power grid industrial control in ' report of large-area power failure condition caused by network hacker attack on Ukrainian power grid of State grid's safety ministry of State grid corporation ', strengthening risk identification and well performing safety risk and vulnerability early warning; the deployment of a network information safety detection system is enhanced, and network safety monitoring is continuously carried out; carrying out troubleshooting on potential safety hazards of network information; and the requirements of safety protection research of the power grid industrial control system and the like are enhanced. The company marketing part requires the national network metering center to re-card the service flow and the safety protection framework of the acquisition system, and develops the design of the safety optimization scheme of the acquisition system.
Referring to fig. 1, based on the above background, the national network performs system security architecture modification on an acquisition system deployment environment, a main station access security authentication gateway, an access control function and a security encryption isolation gateway are added for a pre-acquisition part, a uniform interface platform is deployed at the boundary of a transverse domain of an acquisition main station, a VPN manner is adopted for encryption, and a signature and signature manner is adopted for information source signing. In addition, according to requirements, the previous front-end processor needs to be split into a communication front-end and an acquisition front-end, and the communication front-end and the acquisition front-end are respectively deployed at two sides of the security encryption isolation gateway. The communication preposed cluster is positioned in a safe access area, and the acquisition preposed position is positioned in a three-level domain acquisition system area. The two parts of preposed modules realize communication with the safety encryption isolation gateway through SSAL protocol.
And meanwhile, a newly added marketing production domain is deployed in a management information large area, is independent into a domain/private network, and interacts data with the information intranet power utilization information acquisition system and the marketing safety access area through a forward and reverse isolation device. And the newly added marketing safety access area is used as a DMZ area between the acquisition terminal access acquisition system main stations. Interface services between other business systems and data acquisition and parameter setting business of the acquisition system are cancelled, and all the business systems and the data acquisition and parameter setting business are accessed through a unified interface service platform. And for the boundary generated by the repartitioning, the safety protection capability of the boundary is enhanced by deploying safety equipment such as an isolation device, a firewall, an IPS (intrusion prevention system) and the like.
Under a new national network security system, the problems of congenital deficiency are continuously exposed in the use process of an original old acquisition system, wherein in the judgment of the terminal online state, the original service logic design cannot be adapted to the new security system, the judgment of the terminal online state, the state updating period and the like cannot meet the use requirements of other services, and the situations of obvious time delay and inaccuracy exist, even the situation that the number of online terminals is greater than the number of connected TCP (transmission control protocol) connections occurs. The error of the terminal online state statistics directly affects the issuing of the acquisition task, and the operation and maintenance personnel cannot perform problem confirmation or message issuing processing on the terminal with low acquisition success rate in a targeted manner due to the fact that the terminal online state cannot be accurately judged.
Disclosure of Invention
The invention aims to improve the monitoring of the acquisition system on the online state of the terminal, and can accurately and stably operate under the national grid security architecture, thereby ensuring the accuracy and the real-time property of state identification.
In order to achieve the above object, the present invention provides a terminal online status detection system based on power information acquisition, wherein the online status detection system is used for acquiring a 2.0 system; the acquisition 2.0 system at least forms a system network with a terminal and a terminal load balancer; the terminal is responsible for collecting each electric power data; the terminal load balancer is connected with each terminal and encodes data of each terminal; the acquisition 2.0 system comprises: an acquisition 2.0 communication component and an acquisition 2.0 service system connected with each other; the system for acquiring 2.0 services comprises: collecting a front cluster; the terminal online state detection system comprises: the gateway is connected with the management module, the terminal state management module and the terminal state reading module; the gateway connection management module is positioned in the acquisition 2.0 communication component and is responsible for establishing long connection with the terminal and passively monitoring the long connection state; the terminal state management module is positioned in the acquisition front cluster and used for actively maintaining the online state of the terminal and pushing the state to a message queue; the terminal state reading module is positioned in the acquisition front cluster and used for processing the update message of the terminal state and adopting different state synchronization modes according to different service types.
The gateway connection management module specifically functions as follows:
a) Establishing TCP connection with a terminal, identifying the terminal connection, and reporting the server information where the gateway connection management module is located to the terminal state management module together with the connection information;
b) After the terminal is disconnected with the gateway, the gateway connection management module recovers connection resources and reports the event to the terminal state management module;
c) Receiving a disconnection notification of the terminal state management module, and disconnecting the terminal state management module from the terminal;
d) And intelligently diagnosing the communication state of the connection, judging the communication condition of the connection link, and periodically reporting to the terminal state management module.
The terminal state management module specifically comprises:
a) After the terminal login message is sent to the acquisition front cluster, if the terminal login message is judged to be valid, the terminal state management module establishes and maintains a key by taking the terminal address as a main key, and the actual online state of the terminal is calibrated by taking the key as a core under a distributed architecture;
b) After the terminal state is changed, pushing the change event to a message queue at the same time for the terminal state reading module to extract;
c) And actively maintaining the online state of the terminal.
Wherein, the actively maintaining the online state of the terminal comprises:
i. the current mark of the terminal online state is online: (1) After receiving a heartbeat message of the terminal, maintaining the latest login or heartbeat message time of the terminal in the key value of the online state of the terminal; (2) Actively polling the latest login or heartbeat message time of the online state of each terminal through a timer, if the time difference exceeds a set value, considering that the terminal is offline, pushing a disconnected notice to a gateway at the moment, disconnecting the connection of the path by a gateway connection management module, and recovering resources; (3) After receiving a terminal login message, maintaining the last message time and an access node in the terminal online state key value, and simultaneously sending a message to a gateway of the original access node to inform a gateway connection management module to disconnect and recover the old connection;
the terminal state current identity is offline: after receiving the login or heartbeat message, the terminal is considered to log in again, and the whole content of the terminal online state key value is updated;
and iii, rechecking the communication state pushed by the gateway connection management module, determining whether the communication state is correct or not, and pushing a rechecking result to the gateway connection management module.
The terminal state reading module has the specific functions of:
a) The real-time performance of the terminal online state requires general services: the terminal state reading module is used for reading the information of the information queue and updating a data table of the terminal online state by monitoring the information queue of the terminal online state in real time;
b) And when the command is triggered, the terminal online state reading immediately and actively queries the terminal online state key value, confirms the current real-time terminal online state and feeds back the current real-time terminal online state to the service program.
The invention also provides a terminal online state detection method based on electric power information acquisition, which adopts the terminal online state detection system based on electric power acquisition to detect the online state of the terminal; the online state detection system comprises: the gateway is connected with the management module, the terminal state management module and the terminal state reading module; the method comprises the following steps: the gateway connection management module is arranged in the acquisition 2.0 communication component and is responsible for establishing long connection with the terminal and passively monitoring the long connection state; the terminal state management module is arranged in the acquisition front cluster and is used for actively maintaining the online state of the terminal and pushing the state to a message queue; the terminal state reading module is arranged in the acquisition front cluster and used for processing the update message of the terminal state and adopting different state synchronization modes according to different service types.
Compared with the prior art, the invention has the beneficial effects that:
the invention can ensure the accuracy and the real-time performance of the terminal on-line state identification to the maximum extent through multiple points and multiple modes, and passive confirmation and active patrol.
Drawings
Fig. 1 is a schematic diagram of the overall networking of the power acquisition system.
Fig. 2 is a schematic topological diagram of an acquisition 2.0 system.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
In the traditional Internet of things project, most of confirmation of the online state of the terminal is passive and single-point, and the online state of the terminal can not be judged in real time and accurately even can be subjected to false alarm through multi-level network filtering, forward and reverse interception, proxy forwarding and the like under complex networking. The invention can ensure the accuracy and the real-time performance of state identification to the maximum extent by passive confirmation and active inspection in multiple points and multiple modes.
The terminal online dynamic test detection system based on power information acquisition is used for a new generation of power consumer power consumption information acquisition system (hereinafter referred to as an acquisition 2.0 system). As shown in fig. 1, the system networking of the power acquisition system in the production environment includes: a collection 1.0 system (not required), a collection 2.0 system, a terminal load balancer, a communication load balancer, a collection 1.0 communication component (not required), a collection 2.0 communication component, and a communication gateway (not required). The acquisition 1.0 system is an old system, and the acquisition 2.0 system is a new system. When a new system is changed, the switching of the acquisition 1.0 and acquisition 2.0 systems is ensured not to influence the existing service of the system. And during the operation period of the double tracks, the new and old acquisition systems operate simultaneously.
The acquisition 1.0 system and the acquisition 2.0 system respectively comprise a communication component and a service system; the terminal is responsible for collecting each power data, and the terminal load balancer is connected with each terminal and encodes the data of each terminal; the acquisition 1.0 system communication component and the acquisition 2.0 system communication component are respectively connected with the acquisition 1.0 system service system and the acquisition 2.0 system service system; the communication prepositive load balancer is connected with a communication component of the 1.0 acquisition system.
The terminal online state detection comprises a gateway connection management module, a terminal state management module and a terminal state reading module. The gateway connection management module is responsible for establishing TCP connection with the terminal; the terminal state management module is used for actively maintaining the online state of the terminal and pushing the state to a message queue; and the terminal state reading module is used for processing the update message of the terminal state and maintaining the online state of the terminal in real time.
As shown in fig. 2, a 2.0 system summary topological diagram is collected, wherein an information intranet third-party boundary 1 of a first layer 10 is used for realizing intranet and intranet security isolation; the terminal load balancing device 2 is positioned in a security access area of the second layer 20; collecting 2.0 communication part 3 in the second layer 20 safety access area, where the gateway connection management module works; zookeeper, service schedule, located in third level 30, third level domain 4 (acquisition domain); the acquisition front end 5 is located in a third-level domain (acquisition domain) of the third layer 30, and the terminal state management and terminal state reading module works here.
The on-line state detection of the terminal has the following specific functions.
1. The gateway connection management module is positioned in an acquisition 2.0 system communication component, is positioned in a security access area of a second layer, and is responsible for establishing long connection with the terminal and passively monitoring the long connection state;
a) After TCP connection is established with a terminal, a gateway connection management module identifies the terminal connection, and in order to avoid repeated connection which may occur under the cluster condition, information of a server where the gateway connection management module is located needs to be reported to a terminal state management module together with connection information while the connection is established;
b) After the terminal is disconnected with the gateway, the gateway connection management module recovers connection resources and reports the event to the terminal state management module;
c) And receiving a disconnection notice of the terminal state management module, and disconnecting the terminal. If a load balancing module is arranged on the upper layer of the gateway connection management module, the function and the connection state reporting function are combined together, so that the situation that the terminal repeatedly logs in other nodes due to load balancing can be avoided;
d) Intelligently diagnosing the connected communication state, judging the communication condition of a connection link, and periodically reporting to a terminal state management module, wherein the reported state comprises the following states:
i. the link has no communication: in a period of time, the link channel has no uplink message;
a suspected malicious attack link: receiving a large number of repeated and invalid messages within a period of time;
link normal: the uplink and downlink of the link message are normal without the abnormal condition;
2. the terminal state management module belongs to a collection 2.0 collection front-mounted cluster, is positioned in a three-level domain (collection domain), and is used for actively maintaining the online state of the terminal and pushing the state to a message queue.
a) After the terminal login message is sent to the acquisition device, if the terminal login message is judged to be valid, the terminal state management module establishes and maintains a key by taking the terminal address as a main key, and the actual online state of the terminal is calibrated by taking the key as a core under a distributed architecture, so that the problems of confusion, repetition and high delay in the conventional terminal online state judgment can be solved;
i. and (3) establishing and maintaining Key: the method is established according to a format of 'type identification $ redundant bit $ terminal address 1$ terminal address 2 $', for example, a certain 3761 terminal address is 3198047179, and a key of the online state is 'S $10002$3198$47179 $', and the value is stored in Redis, so that one terminal is ensured to correspond to only one key of the online state.
The value corresponding to this key contains the information: the method comprises the steps that the terminal is uniquely identified in an acquisition system, the terminal protocol type, the port connected with the terminal, the IP and the port of the terminal, the latest login or heartbeat message time of the terminal, the acquired 2.0 communication component information connected with the terminal and the terminal online state identification are acquired. The recorded port connected with the terminal, the IP and the port of the terminal and the acquired 2.0 communication component information of the terminal connection are used for judging whether the terminal is repeatedly connected or not and whether potential abnormal connection is possible or not; the latest login or heartbeat message time of the terminal and the terminal online state identifier are used for comprehensively judging the terminal online state;
b) After the terminal state is changed (including login, offline and elimination), the changed events are simultaneously pushed to a message queue for the terminal state reading module to extract;
c) Actively maintaining the online state of the terminal:
i. the current mark of the terminal online state is online:
(1) After receiving a heartbeat message of the terminal, maintaining the latest login or heartbeat message time of the terminal in the key value of the online state of the terminal;
(2) Actively polling the latest login or heartbeat message time of the online state of each terminal through a timer, if the time difference exceeds a set value, considering that the terminal is offline, pushing a disconnection notice to a gateway, disconnecting the connection by a gateway connection management module, and recovering resources;
(3) After receiving a terminal login message, maintaining the last message time and an access node in the terminal online state key value, and simultaneously sending a message to a gateway of the original access node to inform a gateway connection management module to disconnect and recover the old connection;
the terminal state current identity is offline: after receiving the login or heartbeat message, the terminal is considered to log in again, and the whole content of the terminal online state key value is updated;
and iii, rechecking the communication state pushed by the gateway connection management module, determining whether the communication state is correct or not, and pushing a rechecking result (keeping connection and closing connection) to the gateway connection management module.
3. The terminal state reading module is positioned in the acquisition 2.0 acquisition front cluster, is positioned in a three-level domain (acquisition domain), and is used for processing the update message of the terminal state and adopting different state synchronization modes according to different service types;
a) The real-time performance of the terminal online state requires general services: the terminal state reading module monitors a message queue of the terminal online state in real time, and updates a data table of the terminal online state according to the message of the message queue;
b) For services such as electricity utilization acquisition system foreground calling and testing, the services need terminal real-time response, the real-time requirement on the terminal online state is higher, when the service instructions are triggered, the terminal online state reading immediately actively inquires the terminal online state key value in Redis, confirms the current real-time terminal online state, and feeds back the current real-time terminal online state to a service program;
the implementation mode is as follows:
the dynamic terminal online state detection service based on the electric power information acquisition preposition relies on the acquisition preposition cluster service, is developed based on a JavaSpring Boot framework, is deployed based on a Linux CentOS7 system, has a basic deployment environment of CentOS7+ Oracle JDK1.8, is started after jvm parameters are specified in a java-jar mode, and is organized by zookeeper in communication among different nodes. (local network topology see fig. 2):
1. determining a server where the service is located, wherein ports communicating with external components are opened;
2. setting a name for a current gateway on the gateway service, and appointing the name of the gateway service in a configuration file which is collected in front;
3. and modifying the configuration of the acquisition preamble and the gateway service to ensure normal communication with each service.
4. And starting the micro-service jar package of the acquisition preamble and the gateway by using a java-jar command.
In summary, the invention can ensure the accuracy and the real-time performance of the terminal online state identification to the maximum extent through multiple points and multiple modes, passive confirmation and active patrol.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (3)
1. A terminal on-line state detection system based on electric power information acquisition is used for acquiring a 2.0 system; the acquisition 2.0 system at least forms a system network with a terminal and a terminal load balancer; the terminal is responsible for collecting each electric power data; the terminal load balancer is connected with each terminal and encodes data of each terminal; the acquisition 2.0 system comprises: an acquisition 2.0 communication component and an acquisition 2.0 service system connected with each other; the system for acquiring 2.0 services comprises: collecting a front cluster; the terminal online state detection system is characterized by comprising: the gateway is connected with the management module, the terminal state management module and the terminal state reading module;
the gateway connection management module is positioned in the acquisition 2.0 communication component and is responsible for establishing long connection with the terminal and passively monitoring the long connection state;
the gateway connection management module specifically has the following functions:
a) Establishing TCP connection with a terminal, identifying the terminal connection, and reporting the server information where the gateway connection management module is located to the terminal state management module together with the connection information;
b) After the terminal is disconnected with the gateway, the gateway connection management module recovers connection resources and reports an event to the terminal state management module;
c) Receiving a disconnection notification of the terminal state management module, and disconnecting the terminal state management module from the terminal;
d) Intelligently diagnosing the communication state of the connection, judging the communication condition of the connection link, and periodically reporting to the terminal state management module;
the terminal state management module is positioned in the acquisition front cluster and used for actively maintaining the online state of the terminal and pushing the state to a message queue;
the terminal state management module specifically comprises the following functions:
a) After the terminal login message is sent to the acquisition front cluster, if the terminal login message is judged to be valid, the terminal state management module establishes and maintains a key by taking a terminal address as a main key, and the actual online state of the terminal is calibrated by taking the key as a core under a distributed architecture;
b) After the terminal state is changed, pushing the change event to a message queue at the same time for the terminal state reading module to extract;
c) Actively maintaining the online state of the terminal;
the terminal state reading module is positioned in the acquisition front cluster and used for processing the update message of the terminal state and adopting different state synchronization modes according to different service types;
the terminal state reading module has the specific functions of:
a) The real-time performance of the terminal online state requires general services: the terminal state reading module reads the information of the information queue and updates a data table of the terminal online state by monitoring the information queue of the terminal online state in real time;
b) And when the command is triggered, the terminal online state reading immediately and actively inquires the terminal online state key value, confirms the current real-time terminal online state and feeds back the current real-time terminal online state to the service program.
2. The system according to claim 1, wherein the actively maintaining the on-line status of the terminal comprises:
i. the current mark of the terminal online state is online: (1) After receiving a heartbeat message of the terminal, maintaining the latest login or heartbeat message time of the terminal in the on-line state key value of the terminal; (2) Actively polling the latest login or heartbeat message time of the online state of each terminal through a timer, if the time difference exceeds a set value, considering that the terminal is offline, pushing a disconnection notice to a gateway, disconnecting the connection by a gateway connection management module, and recovering resources; (3) After receiving a terminal login message, maintaining the last message time and an access node in the terminal online state key value, and simultaneously sending a message to a gateway of the original access node to inform a gateway connection management module to disconnect and recover the old connection;
the terminal state current identity is offline: after receiving the login or heartbeat message, the terminal is considered to log in again, and the whole content of the terminal online state key value is updated;
and iii, rechecking the communication state pushed by the gateway connection management module, determining whether the communication state is correct or not, and pushing a rechecking result to the gateway connection management module.
3. A terminal online state detection method based on electric power information acquisition is characterized in that the terminal online state detection system based on electric power information acquisition of claim 1 or 2 is adopted to detect the online state of a terminal; the online state detection system comprises: the gateway is connected with the management module, the terminal state management module and the terminal state reading module; the method comprises the following steps:
the gateway connection management module is arranged in the acquisition 2.0 communication component and is responsible for establishing long connection with the terminal and passively monitoring the long connection state;
the terminal state management module is arranged in the acquisition front cluster and used for actively maintaining the online state of the terminal and pushing the state to a message queue;
the terminal state reading module is arranged in the acquisition front cluster and used for processing the update message of the terminal state and adopting different state synchronization modes according to different service types.
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| CN115484195A (en) * | 2022-08-31 | 2022-12-16 | 朗新科技集团股份有限公司 | A receiving and dispatching integrative system, power consumption management system for electric power information acquisition |
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| 基于ZigBee技术的电力运行状态监测系统设计;宋亮;《信息与电脑(理论版)》;20191225(第24期);全文 * |
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| CN112468592A (en) | 2021-03-09 |
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