CN114124717A - Distribution network line topology visual monitoring method based on Internet of things technology - Google Patents
Distribution network line topology visual monitoring method based on Internet of things technology Download PDFInfo
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- H04L41/12—Discovery or management of network topologies
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/22—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks comprising specially adapted graphical user interfaces [GUI]
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/04—Processing captured monitoring data, e.g. for logfile generation
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Abstract
A distribution network line topology visual monitoring method based on the technology of the Internet of things belongs to the technical field of distribution Internet of things data transmission. The problems of low data processing efficiency and data updating delay in the existing analysis method when the topological structure information of the power distribution network line is monitored are solved. The method comprises the following steps: updating data to obtain the connection relation information of the upper level and the lower level networks of the known data terminal; the connection update is used for finishing the initialization of the data terminal; the state updating is used for setting a confirmation data packet and starting a data transmission module; and the hierarchy updating is used for establishing a data terminal topology connection relation or a directed graph in an initial state by the service platform, so that the visual monitoring of the data terminal line topology is completed. The method is mainly used for rapidly monitoring the topological structure of the distribution network line.
Description
Technical Field
The invention belongs to the technical field of data transmission of power distribution internet of things.
Background
Along with the construction of a power distribution network system, various data information systems are gradually perfected, the efficiency and the capacity of data transmission among systems of different levels are continuously improved, the overall stability and the efficiency of the power distribution network system bring further development space, as one of important work contents of power distribution network construction and maintenance, the combing and updating of the topological connection relation of the power distribution network has important significance in the aspects of power distribution, load prediction, regional function design and the like of a power grid, but along with the expansion of the scale of the power grid and the increase of the number of nodes connected to the power grid, the topological structure of each regional network is continuously developed and expanded in a continuous updating process, when the currently adopted topological analysis and data collection system and scheme are used for processing, huge data volume processing capacity is involved, including a large amount of data storage, transmission, analysis and the like, for the existing enterprises or equipment, it is difficult to ensure the implementation of the method effectively, which causes problems of data update delay, working cost increase, etc., and therefore, there is a need to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems of low data processing efficiency and delayed data updating when the existing analysis method monitors the topological structure information of a power distribution network line.
A distribution network line topology visualization monitoring method based on the technology of the Internet of things comprises the following steps:
s1, data updating: the method comprises the steps of obtaining superior and inferior network connection relation information of a known data terminal, wherein the data terminal is a distribution network terminal provided with a data transmission module and a data storage module; the data storage module is used for storing the connection relation information of the upper-level network and the lower-level network in the data terminal;
s2, connection updating: the system comprises a data storage module, a data transmission module, a data terminal initialization module, a data transmission module and a power distribution system, wherein the data storage module is used for storing network connection relation information;
s3, state updating: the system is used for setting a confirmation data packet, starting a data transmission module and carrying out contact transmission with the service platform at a fixed period T0; the data terminal is used for analyzing the confirmation data packet sent by the data transmission module through the service platform, updating the connection state of the data terminal according to the confirmation data packet information, and if the service platform is in a specific period T1＝kT0If the confirmation data packet is not received, the state of the data terminal is updated to be an unconnected state, and k is a positive integer;
s4, updating the hierarchy: the method comprises the steps that a data terminal topological connection relation or a directed graph is constructed in an initial state of a service platform; the data terminal is used for establishing and storing a data table according to the sequence of connecting the data terminal to the service platform; based on a particular refresh period T2Or based on the access rate time point of the data terminal, updating the topological connection relation or directed graph of the data terminal, thereby completing the visual monitoring of the line topology of the data terminal.
Preferably, the network connection relationship information in step S1 at least includes topological connection relationships between devices, and electrical parameters and operating states of the devices.
Preferably, in step S4, the data terminal topology connection relationship or the directed graph is converted into a key point form in the service platform, the data table stores signed key point information in a universal data exchange format, and the content of the update data includes addition and deletion of key points and key point connection relationship modification.
Preferably, the key point increase is realized by:
if the service platform receives the key point JiIs updated to connected, the key point J is locatediUpper key point J ofi-1And lower key point Ji+1Let the key point Ji-1All subordinate key points of the network are updated to connected state, and the key point J is updatedi+1All upper level key points of (1) are updated to be connected and the key point J is updated in the topological connection relation or the directed graphiAccording to the key point Ji-1Updating keypoint JiAnd key point Ji+1A hierarchy; wherein i is an integer;
the key point deletion is realized by the following steps:
if the service platform receives the key point JiIf the state of the node is not connected, the key point J is inquired in sequencei+1According to the connection state of key point Ji+1The connection state of the network node is correspondingly updated;
if the key point Ji+1If the connection state is established, the original key point J is deletediAnd querying a key point Ji+1Whether there is a connection with the key point J in the existing connection relationiKey Point J 'of same level'iIf no critical point J 'is present'iThen the lower key point J isi+1Updated to connect to keypoint Ji+1；
If the key point Ji+1If the connection state is not connected, the original key point J is deletediAnd lower key point Ji+1Connecting relationships and updating the keypoint Ji+1Is in an unconnected state;
the key point connection relation modification is realized by the following steps:
when the key point JkAnd its subordinate key point Jk+1Between which a new connection relation L appearsnew+Then sequentially inquiring key points JkUpper key point J ofk-1And key point Jk+1Whether there is a connection relation L between themk-1→k+1If present, delete Lk-1→k+1；
When the key point JkAnd key point Jk+1The connection relation L betweennew-If deleted, query key point Jk+1If the key point J isk+1Is connected state, the key point J 'is inquired'iAnd key point Jk+1Whether there is a connection relation L between themj→k+1If there is no connection Lj→k+1Then, establish a key point Jk-1And key point Jk+1Wherein j is an integer.
Preferably, the distribution network line topology visualization monitoring method based on the internet of things technology further includes a step for completing remote topology operational processing, and the specific steps and contents include:
establishing an operable topology editing section based on a visual graphic module, specifically: establishing a visual browser capable of carrying out data docking with a service platform at a mobile terminal based on a compiled programming language;
constructing topological structure data based on a josn format and storing the topological structure data in a database of a service platform; establishing a document editing processing function of a visual browser based on a text markup language;
and acquiring the josn format data of the topological structure from the server according to the request of the client, and converting the data into an editable graph.
Preferably, in the step of establishing the operable topology editing section based on the visualization graphic module:
the visual browser is as follows: based on HTML5 drawing board technology, at least comprising key nodes, line segments, groups, basic shapes, tree structures and text primitives, and the graphic components of the primitive operation layout can be controlled through a compiling programming language;
the topology structure data in the josn format is marked through a plurality of marking fields so as to be indexed, and the marking fields at least comprise topology structure ID, topology structure type, and address or coordinate information of the topology structure;
the editing processing function at least comprises: positioning, querying, traversing, editing any document.
Preferably, the data transmission module is further configured to transmit the data based on an internal memory occupancy rate or a fixed period T of the data transmission module3＝mT1Performing data fusion and unloading; the data fusion unloading refers to:
for a certain key point JkCorresponding data terminal ZkFor data terminal ZkAll upper level data terminal Z ofk-1And all subordinate data terminals Zk+1The transmission frequency between the two groups is counted and sequenced;
when the data terminal ZkSatisfy the condition of data fusion unloading and data terminal Zk-1If there is enough memory space, the data terminal Z is extracted from the high to low order according to the transmission frequencykMiddle and several subordinate data terminals Zk+1Corresponding topological data are stored to the data terminal Zk-1Then clearing the data terminal ZkCorresponding data therein, up to data terminal ZkIs below a preset threshold.
The invention has the following beneficial effects:
the visual monitoring method for the topology of the distribution network line based on the technology of the Internet of things solves the problems that the traditional network topology structure is slow to update, the data updating delay is high, the system transmission cost is high, and data errors are easy to occur, and performs data refreshing and updating operations in the following four aspects, namely: the method comprises the steps of data updating, connection updating, state updating and hierarchy updating, real-time effectiveness of data is guaranteed, and based on a special node control mode and a data updating and data unloading fusion method, the real-time performance of the system is improved, meanwhile, the storage capacity of the system is distributed more uniformly, the problems of overhigh local load or data overflow and the like are avoided, and the stability of the system is further improved.
Drawings
Fig. 1 is a connection relationship diagram between a data terminal and a service platform in the distribution network line topology visualization monitoring method based on the internet of things technology;
fig. 2 is a schematic diagram of a topological connection.
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.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The distribution network line topology visualization monitoring method based on the Internet of things technology is mainly used for an application scene of online monitoring of a distribution network, specifically, based on each node terminal device in the Internet of things system, automatic construction and updating of a power network topology structure are achieved, and real-time updating and editing of the distribution network topology are improved by combining with a visualization graph technology, so that the speed and efficiency of a data acquisition function of the distribution network system, particularly updating of the topology structure, are improved.
Referring to fig. 1, the embodiment is described, and the distribution network line topology visualization monitoring method based on the internet of things technology in the embodiment includes the following steps:
s1, data updating: the method comprises the steps of obtaining superior and inferior network connection relation information of a known data terminal, wherein the data terminal is a distribution network terminal provided with a data transmission module and a data storage module; the data storage module is used for storing the connection relation information of the upper-level network and the lower-level network in the data terminal; the network connection relation information at least comprises the topological connection relation among the devices, the electrical parameters of the devices and the running state;
according to the actual situation, the system acquires the topological connection relation between an upper level and a lower level of a network topological structure of the data terminal, stores the topological connection relation into a data storage module in the terminal, and transmits the topological connection relation to a corresponding hierarchy or a service platform by using a data transmission module;
s2, connection updating: the system comprises a data storage module, a data transmission module, a data terminal initialization module, a data transmission module and a power distribution system, wherein the data storage module is used for storing network connection relation information;
s3, state updating: the system is used for setting a confirmation data packet, starting a data transmission module and carrying out contact transmission with the service platform at a fixed period T0; the data terminal is used for analyzing the confirmation data packet sent by the data transmission module through the service platform, updating the connection state of the data terminal according to the confirmation data packet information, and if the service platform is in a specific period T1＝kT0If the confirmation data packet is not received, the state of the data terminal is updated to be an unconnected state, and k is a positive integer;
the above contents are used for constructing an access disconnection mechanism between the data terminals and the system and the network topology structure, and through periodic query and detection, while realizing continuous update of data, the access state of each data terminal is analyzed, so as to update the topology structure according to the corresponding connection state;
s4, updating the hierarchy: the method comprises the steps that a data terminal topological connection relation or a directed graph is constructed in an initial state of a service platform; the data terminal is used for establishing and storing a data table according to the sequence of connecting the data terminal to the service platform; based on a particular refresh period T2Or based on the access rate time point of the data terminal, updating the topological connection relation or directed graph of the data terminal, thereby completing the visual monitoring of the line topology of the data terminal.
The data terminal topology connection relation or directed graph is converted into a key point form in the service platform, the data table stores signed key point information in a general data exchange format, and the content of the updated data comprises the addition and deletion of key points and the modification of the key point connection relation;
further, referring to fig. 2 specifically, the implementation manner of the key point addition is as follows:
if the service platform receives the key point JiIs updated to connected, the key point J is locatediUpper key point J ofi-1And lower key point Ji+1Let the key point Ji-1All subordinate key points of the network are updated to connected state, and the key point J is updatedi+1All upper level key points of (1) are updated to be connected and the key point J is updated in the topological connection relation or the directed graphiAccording to the key point Ji-1Updating keypoint JiAnd key point Ji+1A hierarchy; wherein i is an integer;
further, referring to fig. 2 specifically, the key point deletion is implemented in the following manner:
if the service platform receives the key point JiIf the state of the node is not connected, the key point J is inquired in sequencei+1According to the connection state of key point Ji+1The connection state of the network node is correspondingly updated;
if the key point Ji+1If the connection state is established, the original key point J is deletediAnd querying a key point Ji+1Whether there is a connection with the key point J in the existing connection relationiKey Point J 'of same level'iIf no critical point J 'is present'iThen the lower key point J isi+1Updated to connect to keypoint Ji+1；
If the key point Ji+1If the connection state is not connected, the original key point J is deletediAnd lower key point Ji+1Connecting relationships and updating the keypoint Ji+1Is in an unconnected state;
further, the key point connection relationship modification is realized in the following manner:
when the key point JkAnd its subordinate key point Jk+1Between which a new connection relation L appearsnew+Then sequentially inquiring key points JkUpper key point J ofk-1And key point Jk+1Whether there is a connection relation L between themk-1→k+1If present, delete Lk-1→k+1；
When the key point JkAnd key point Jk+1The connection relation L betweennew-If deleted, query key point Jk+1If the key point J isk+1Is connected state, the key point J 'is inquired'iAnd key point Jk+1Whether there is a connection relation L between themj→k+1If there is no connection Lj→k+1Then, establish a key point Jk-1And key point Jk+1Wherein j is an integer.
The process is presented by the content processed in the program in the actual working process, the automatic updating and the correction of the topological structure are realized through the part, the whole topological structure is always kept in a relatively complete link form and can be supplemented or modified at any time, the process still provides periodic data for updating the acquired data such as the connection state and the like, and the access or the disconnection of specific equipment is generally accompanied with specific operation content in the actual working process, so that an actual operator can often know the change details of the topological structure more timely and accurately in a small range, and the real-time topological structure information is conveniently, effectively and accurately acquired, and in the actual working process, the mode of combining automatic updating and active maintenance can be realized by matching a mobile terminal device which can access a system with an editable operation interface, so that the real-time performance of the topological structure is further improved, the method reduces the workload of system self-check, better applies resources in the system, and in order to achieve the purpose, the method also comprises the steps for completing the operable processing of the remote topology, and the specific steps and contents comprise:
establishing an operable topology editing section based on a visual graphic module, specifically: establishing a visual browser capable of carrying out data docking with a service platform at a mobile terminal based on a compiled programming language;
constructing topological structure data based on a josn format and storing the topological structure data in a database of a service platform; establishing a document editing processing function of a visual browser based on a text markup language;
and acquiring the josn format data of the topological structure from the server according to the request of the client, and converting the data into an editable graph.
Further, the visual browser means: based on HTML5 drawing board technology, at least comprising key nodes, line segments, groups, basic shapes, tree structures and text primitives, and the graphic components of the primitive operation layout can be controlled through a compiling programming language; the topological structure data in the josn format is marked through a plurality of marking fields so as to be indexed, and the marking fields at least comprise a topological structure ID, a topological structure type and address or coordinate information of the topological structure;
based on the fact that the universality is good, the function is strong, the API corresponding to the text markup language is matched to connect the browser, quick and efficient visual output and interactive operation of various mobile end devices and interfaces can be achieved conveniently, the existing power distribution network matching devices and reasonable authority distribution are combined, the existing power distribution network system and hardware devices can be combined conveniently, and quick application is achieved.
Furthermore, in order to make the field operator perform various updating operations on the topology structure smoothly, the editing processing function at least comprises: positioning, querying, traversing, editing any document. The foregoing operation content may be implemented by means such as HTml or CSS operation in different types of browsers, and the specific implementation method is mature, and is not described herein again.
Generally speaking, for most base layer data terminals, the capacity of the data storage module is limited, and the storage capacity is smaller downwards, which is mainly used for temporary storage and temporary storage of transmission nodes, when a certain data terminal or its subordinate terminal generates a large amount of state update content, it may cause the new data amount generated by a part of terminals to be suddenly increased, which may cause the problem that data cannot be effectively stored and updated, and to avoid this problem, the data transmission module is also used for storing and updating data based on the internal memory occupancy rate of the data transmission module or a fixed period T3＝mT1Performing data fusion and unloading; the data fusion unloading refers to:
for a certain key point JkCorresponding data terminal ZkFor data terminal ZkAll upper level data terminal Z ofk-1All subordinate data terminals Zk+1The transmission frequency between the two groups is counted and sequenced;
when the data terminal ZkSatisfy the condition of data fusion unloading and data terminal Zk-1If there is enough memory space, the data terminal Z is extracted from the high to low order according to the transmission frequencykMiddle and several subordinate data terminals Zk+1Corresponding topological numberAccording to the data and transfer it to the data terminal Zk-1Then clearing the data terminal ZkCorresponding data therein, up to data terminal ZkIs below a preset threshold. Wherein sufficient storage space specifies storage space that meets the storage requirements.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (7)
1. A distribution network line topology visualization monitoring method based on the technology of the Internet of things is characterized by comprising the following steps:
s1, data updating: the method comprises the steps of obtaining superior and inferior network connection relation information of a known data terminal, wherein the data terminal is a distribution network terminal provided with a data transmission module and a data storage module; the data storage module is used for storing the connection relation information of the upper-level network and the lower-level network in the data terminal;
s2, connection updating: the system comprises a data storage module, a data transmission module, a data terminal initialization module, a data transmission module and a power distribution system, wherein the data storage module is used for storing network connection relation information;
s3, state updating: the system is used for setting a confirmation data packet, starting a data transmission module and carrying out contact transmission with the service platform at a fixed period T0; the data terminal is used for analyzing the confirmation data packet sent by the data transmission module through the service platform, updating the connection state of the data terminal according to the confirmation data packet information, and if the service platform is in a specific period T1＝kT0Is not connected internallyIf the confirmation data packet is received, the state of the data terminal is updated to be the unconnected state, and k is a positive integer;
s4, updating the hierarchy: the method comprises the steps that a data terminal topological connection relation or a directed graph is constructed in an initial state of a service platform; the data terminal is used for establishing and storing a data table according to the sequence of connecting the data terminal to the service platform; based on a particular refresh period T2Or based on the access rate time point of the data terminal, updating the topological connection relation or directed graph of the data terminal, thereby completing the visual monitoring of the line topology of the data terminal.
2. The visual monitoring method for the topology of the distribution network lines based on the technology of the internet of things of claim 1, wherein the network connection relationship information in the step S1 at least includes the topological connection relationship among the devices, the electrical parameters of the devices, and the operation status.
3. The distribution network line topology visualization monitoring method based on the internet of things technology of claim 1, wherein in the step S4, a data terminal topology connection relationship or a directed graph is converted into a key point form in a service platform, the data table stores signed key point information in a universal data exchange format, and the content of the update data includes addition and deletion of key points and modification of key point connection relationship.
4. The visual monitoring method for the topology of the distribution network lines based on the technology of the Internet of things as claimed in claim 3,
the key point increase is realized by the following steps:
if the service platform receives the key point JiIs updated to connected, the key point J is locatediUpper key point J ofi-1And lower key point Ji+1Let the key point Ji-1All subordinate key points of the network are updated to connected state, and the key point J is updatedi+1All upper level key points of (1) are updated to be connected and the key point J is updated in the topological connection relation or the directed graphiConnection relation of, rootAccording to the key point Ji-1Updating keypoint JiAnd key point Ji+1A hierarchy; wherein i is an integer;
the key point deletion is realized by the following steps:
if the service platform receives the key point JiIf the state of the node is not connected, the key point J is inquired in sequencei+1According to the connection state of key point Ji+1The connection state of the network node is correspondingly updated;
if the key point Ji+1If the connection state is established, the original key point J is deletediAnd querying a key point Ji+1Whether there is a connection with the key point J in the existing connection relationiKey Point J 'of same level'iIf no critical point J 'is present'iThen the lower key point J isi+1Updated to connect to keypoint Ji+1；
If the key point Ji+1If the connection state is not connected, the original key point J is deletediAnd lower key point Ji+1Connecting relationships and updating the keypoint Ji+1Is in an unconnected state;
the key point connection relation modification is realized by the following steps:
when the key point JkAnd its subordinate key point Jk+1Between which a new connection relation L appearsnew+Then sequentially inquiring key points JkUpper key point J ofk-1And key point Jk+1Whether there is a connection relation L between themk-1→k+1If present, delete Lk-1→k+1；
When the key point JkAnd key point Jk+1The connection relation L betweennew-If deleted, query key point Jk+1If the key point J isk+1Is connected state, the key point J 'is inquired'iAnd key point Jk+1Whether there is a connection relation L between themj→k+1If there is no connection Lj→k+1Then, establish a key point Jk-1And key point Jk+1Wherein j is an integer.
5. The visual monitoring method for the topology of the distribution network line based on the technology of the internet of things of claim 1, further comprising a step for completing the operational processing of the remote topology, wherein the specific steps and contents comprise:
establishing an operable topology editing section based on a visual graphic module, specifically: establishing a visual browser capable of carrying out data docking with a service platform at a mobile terminal based on a compiled programming language;
constructing topological structure data based on a josn format and storing the topological structure data in a database of a service platform; establishing a document editing processing function of a visual browser based on a text markup language;
and acquiring the josn format data of the topological structure from the server according to the request of the client, and converting the data into an editable graph.
6. The visual monitoring method for the topology of the distribution network lines based on the technology of the internet of things of claim 5, wherein in the step of establishing the operable topology editing cross section based on the visual graphic module:
the visual browser is as follows: based on HTML5 drawing board technology, at least comprising key nodes, line segments, groups, basic shapes, tree structures and text primitives, and the graphic components of the primitive operation layout can be controlled through a compiling programming language;
the topology structure data in the josn format is marked through a plurality of marking fields so as to be indexed, and the marking fields at least comprise topology structure ID, topology structure type, and address or coordinate information of the topology structure;
the editing processing function at least comprises: positioning, querying, traversing, editing any document.
7. The visual distribution network line topology monitoring method based on the internet of things technology as recited in claim 1, wherein the data transmission module is further configured to perform a visual monitoring based on an occupancy rate of an internal memory of the data transmission module or a fixed period T3＝mT1Performing data fusion and unloading; the data fusion is transferred to the memoryThe method comprises the following steps:
for a certain key point JkCorresponding data terminal ZkFor data terminal ZkAll upper level data terminal Z ofk-1And all subordinate data terminals Zk+1The transmission frequency between the two groups is counted and sequenced;
when the data terminal ZkSatisfy the condition of data fusion unloading and data terminal Zk-1If there is enough memory space, the data terminal Z is extracted from the high to low order according to the transmission frequencykMiddle and several subordinate data terminals Zk+1Corresponding topological data are stored to the data terminal Zk-1Then clearing the data terminal ZkCorresponding data therein, up to data terminal ZkIs below a preset threshold.
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