CN111698713B - 5G distributed terminal testing device - Google Patents
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Abstract
The invention discloses a 5G distributed terminal testing device which comprises a topology checking unit, a 5G distributed terminal simulation unit, a 5G communication multi-state simulation unit, a fault triggering unit, an information safety testing unit, a defect control unit and an external interface, wherein the topology checking unit is used for checking the topology of a terminal; the external interface comprises an analog quantity interface, a 5G wireless digital quantity output interface and a network interface. The device can simultaneously simulate a plurality of 5G distributed terminals, support network transmission protocols such as R-GOOSE and the like, meet the signal transmission requirements among the 5G distributed terminals and facilitate the development of related tests; the device can test the terminal with the topology self-identification function and verify the correctness of the topology self-identification function in the terminal; the device can simulate various defect problems encountered in the terminal operation process, can carry out comprehensive test on the aspects of main protection, backup protection, locking mechanism, safety protection and the like of the terminal, and has more comprehensive functions.
Description
Technical Field
The invention belongs to the technical field of distributed terminal testing, and particularly relates to a 5G distributed terminal testing device.
Background
By means of a low-delay, high-reliability and network slicing technology of a 5G network, intelligent distributed feeder automation and differential protection based on 5G wireless communication are applied to ground test points in 2019 and 12, and the method marks that a distribution network fault rapid processing method based on 5G communication formally moves from a laboratory to all-weather, all-environment and multi-line whole-course full-network practical operation. Compared with intelligent distributed and differential protection of optical fiber communication, the intelligent distributed and differential protection based on 5G communication can not only realize fault millisecond-level processing, but also has low investment cost, convenient channel maintenance, higher practicability and wider application range.
Along with the popularization and application of the distribution network fault rapid processing technology based on 5G wireless communication, how to ensure the reliable operation of the novel terminal and how to develop the function test of the novel terminal become a key link for the development of the distribution network rapid protection technology based on 5G communication. However, the existing terminal testing method and device are both designed for testing the distributed terminal of the conventional optical fiber communication, and the difference between the intelligent distributed and differential protection adopting 5G communication and the optical fiber mode is large, and the existing testing method and device cannot meet the requirements.
The existing testing method and device do not consider the particularity of 5G wireless communication, and have the following defects:
firstly, although some methods and devices can simulate signal transmission of adjacent terminals, all the methods and devices are established on the basis of optical fiber communication, fixed IP is not needed depending on optical fiber transmission, and the 5G wireless communication adopts the fixed IP, so that the transmission protocols have great difference;
secondly, after 5G wireless communication is adopted, special conditions such as communication interruption, communication delay and the like of the wireless communication must be comprehensively considered in the testing process, but the existing method and device do not have the function;
thirdly, some methods and devices have wireless communication modules, but all have 4G, do not have 5G distributed terminal simulation function, and cannot complete fault information interaction with a tested terminal;
fourthly, some methods and devices only rely on simulating adjacent terminal communication and signal output to test the distributed terminal, parameters need to be set in the test process, and operation is inconvenient;
although some methods and devices are provided with a topology self-adaptive module, the module has the main function of simulating topology change caused by field primary equipment power failure maintenance, topology regulation is carried out on a terminal by a test system, and terminal topology adaptability test is carried out, but at present, along with the continuous improvement of the edge computing capability of an intelligent distributed power distribution terminal, most of new terminals have a topology self-recognition function, namely, a network frame is changed, a new terminal is accessed, old terminals are removed and the like, the topological relation of the positions of the terminals can be automatically recognized only by mutual communication among the terminals, and the existing methods and devices do not have terminal topology self-recognition function detection;
sixthly, some methods and devices only test for the distributed algorithm, in practice, a backup protection algorithm is configured in the distributed terminal, the backup protection algorithm and the intelligent distributed algorithm are taken as a whole for fault processing, the backup protection algorithm and the intelligent distributed algorithm cannot be separated, and corresponding scenes need to be simulated to carry out related tests, but the existing methods and devices do not have the function.
Disclosure of Invention
The invention aims to solve the technical problem of providing a 5G distributed terminal testing device, which is used for developing a protection characteristic test of a distributed terminal aiming at the particularity of 5G wireless communication, and simultaneously can simulate the defects of problems of 5G communication, primary equipment, terminal equipment, network attack and the like, verifying the protection adaptability of the 5G distributed terminal, improving the operation stability of the terminal and providing guarantee for the application and popularization of the 5G technology in the field of distribution network protection.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
A5G distributed terminal testing device is characterized in that: the system comprises a topology checking unit, a 5G distributed terminal simulation unit, a 5G communication multi-state simulation unit, a fault triggering unit, an information safety testing unit, a defect control unit and an external interface;
the external interface comprises an analog quantity interface, a 5G wireless digital quantity output interface and a network interface;
the topology checking unit is respectively in communication connection with the fault triggering unit and the 5G distributed terminal analog unit, the 5G distributed terminal analog unit is in communication connection with the 5G communication multi-state analog unit, and the 5G communication multi-state analog unit is in communication connection with the 5G wireless digital output interface;
the fault trigger unit is respectively in communication connection with the 5G distributed terminal simulation unit and the analog quantity interface;
the defect control unit is respectively in communication connection with the 5G distributed terminal simulation unit, the 5G communication multi-state simulation unit and the information safety test unit, the information safety test unit is in communication connection with the 5G distributed terminal simulation unit, and the information safety test unit is in communication connection with the network interface.
As a further embodiment of the functional units of the invention,
the topology checking unit supports automatic drawing of network topology, sets the position of the tested terminal and other terminal positions according to actual installation requirements, simulates field working conditions of normal operation, operation mode change, new line input or old terminal removal, and is used for verifying the correctness of the self-identification function of the internal topology of the tested terminal.
As a further embodiment of the functional units of the invention,
the 5G distributed terminal simulation unit simulates a plurality of 5G distributed terminals simultaneously according to the topological structure requirement, transmits topological identification instructions, running state information and fault state information with associated terminals, has a primary and secondary complete equipment simulation capability, has a multi-interval 5G communication module and supports the IP network protocol transmission of R-GOOSE.
As a further embodiment of the functional units of the invention,
the topology checking unit supports automatic drawing of network topology, sets the position of the tested terminal and other terminal positions according to actual installation requirements, simulates field working conditions of normal operation, operation mode change, new line input or old terminal removal, and is used for verifying the correctness of the self-identification function of the internal topology of the tested terminal.
As a further embodiment of the functional units of the invention,
the 5G distributed terminal simulation unit can simultaneously simulate a plurality of 5G distributed terminals, transmits topology identification instructions, running state information and fault state information with the tested terminal through a 5G channel according to the requirements of a topological structure, is provided with a multi-interval 5G communication module, supports IP network protocol transmission such as R-GOOSE, can simulate normal states such as switch opening, closing and energy storage, and can also simulate defect states such as switch refusing.
As a further embodiment of the functional units of the invention,
the 5G communication multi-state simulation unit simulates a 5G communication normal state, a burst long-delay state, a communication interruption state or a message loss state, tests whether the main protection and the backup protection of the 5G distributed terminal are started correctly and act accurately under the environment, and verifies the correctness of the self-repairing function of the internal link of the terminal.
As a further embodiment of the functional units of the invention,
the fault triggering unit can optionally set fault occurrence positions and fault types based on a topological structure established by the topology checking unit, and the fault types comprise: and the three-phase short circuit, the two-phase short circuit grounding, the single-phase grounding and the different-name phase grounding automatically generate fault information values of all the analog terminals and analog quantity output of the tested terminal according to the positions of the fault points, and control the digital signal output of the 5G distributed terminal analog unit.
As a further embodiment of the functional units of the invention,
the fault trigger unit comprises a 5G intelligent distributed fault unit and a 5G differential protection fault unit.
As a further embodiment of the functional units of the invention,
and the 5G intelligent distributed fault unit generates fault information values of all the analog terminals and analog quantity output of the tested terminals according to the test requirements of 5G intelligent distributed feeder automation, and controls digital signal output of the 5G distributed terminal analog unit.
As a further embodiment of the functional units of the invention,
and the 5G differential protection fault unit generates fault information values of all the analog terminals and analog quantity output of the tested terminal according to the test requirements of 5G differential protection, and controls digital signal output of the 5G distributed terminal analog unit.
As a further embodiment of the functional units of the invention,
the information security testing unit scans illegal ports and information security risks of the 5G distributed terminal, can simulate network attack behaviors such as pseudo terminal intrusion, pseudo message instruction sending, message instruction tampering and the like, and tests the security protection capability of the distributed terminal.
As a further embodiment of the functional units of the invention,
the defect control unit directly controls the 5G communication multi-state simulation unit, the 5G distributed terminal simulation unit and the information security testing unit, various defects in the actual operation state of the terminal are simulated, the defect types comprise switch refusing, communication long delay, communication interruption, message loss, pseudo terminal invasion, pseudo message instruction sending, message instruction tampering and the like, and the accuracy of an internal algorithm of the 5G distributed terminal under the influence of the defects is tested.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
1. the invention considers the particularity of 5G wireless communication, carries out simulation aiming at the defect problem possibly generated by the 5G wireless communication and can better verify the adaptability and the reliability of the algorithm.
2. The device can simulate a plurality of 5G distributed terminals simultaneously, supports IP network transmission protocols such as R-GOOSE and the like, meets the signal transmission requirements between the 5G distributed terminals and is convenient for carrying out related tests.
3. The fault triggering unit of the device has digital simulation capability, can automatically control and output digital signals of each terminal and analog signals of the tested terminal according to the topological relation and the fault position, does not need to manually complete parameter configuration of each associated terminal, and has higher automation and intelligence levels.
4. The device can test the terminal with the topology self-identification function and verify the correctness of the topology self-identification function in the terminal.
5. The device can model various defect problems encountered in the terminal operation process, can carry out comprehensive test on the aspects of main protection, backup protection, locking mechanism, safety protection and the like of the terminal, and has more comprehensive functions.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a functional block diagram of an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. 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 application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting.
Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.
In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Example one
As shown in fig. 1, a 5G distributed terminal testing apparatus is characterized in that: the system comprises a topology checking unit, a 5G distributed terminal simulation unit, a 5G communication multi-state simulation unit, a fault triggering unit, an information safety testing unit, a defect control unit and an external interface;
the external interface comprises an analog quantity interface, a 5G wireless digital quantity output interface and a network interface;
the topology checking unit is respectively in communication connection with the fault triggering unit and the 5G distributed terminal analog unit, the 5G distributed terminal analog unit is in communication connection with the 5G communication multi-state analog unit, and the 5G communication multi-state analog unit is in communication connection with the 5G wireless digital output interface;
the fault trigger unit is respectively in communication connection with the 5G distributed terminal simulation unit and the analog quantity interface;
the defect control unit is respectively in communication connection with the 5G distributed terminal simulation unit, the 5G communication multi-state simulation unit and the information safety test unit, the information safety test unit is in communication connection with the 5G distributed terminal simulation unit, and the information safety test unit is in communication connection with the network interface.
In a further aspect of the present invention,
the topology checking unit supports automatic drawing of network topology, sets the position of the tested terminal and other terminal positions according to actual installation requirements, simulates field working conditions of normal operation, operation mode change, new line input or old terminal removal, and is used for verifying the correctness of the self-identification function of the internal topology of the tested terminal.
Further, in the above-mentioned case,
the 5G distributed terminal simulation unit simulates a plurality of 5G distributed terminals simultaneously according to the topological structure requirement, transmits topological identification instructions, running state information and fault state information with associated terminals, has a primary and secondary complete equipment simulation capability, has a multi-interval 5G communication module and supports the IP network protocol transmission of R-GOOSE.
Further, in the above-mentioned case,
the topology checking unit supports automatic drawing of network topology, sets the position of the tested terminal and other terminal positions according to actual installation requirements, simulates field working conditions of normal operation, operation mode change, new line input or old terminal removal, and is used for verifying the correctness of the self-identification function of the internal topology of the tested terminal.
Further, in the above-mentioned case,
the 5G distributed terminal simulation unit can simultaneously simulate a plurality of 5G distributed terminals, transmits topology identification instructions, running state information and fault state information with the tested terminal through a 5G channel according to the requirements of a topological structure, is provided with a multi-interval 5G communication module, supports IP network protocol transmission such as R-GOOSE, can simulate normal states such as switch opening, closing and energy storage, and can also simulate defect states such as switch refusing.
Further, in the above-mentioned case,
the 5G communication multi-state simulation unit simulates a 5G communication normal state, a burst long-delay state, a communication interruption state or a message loss state, tests whether the main protection and the backup protection of the 5G distributed terminal in the environment are started correctly and act accurately, and verifies the correctness of the self-repair function of the internal link of the terminal.
Further, in the above-mentioned case,
the fault triggering unit can optionally set fault occurrence positions and fault types based on a topological structure established by the topology checking unit, and the fault types comprise: and the three-phase short circuit, the two-phase short circuit grounding, the single-phase grounding and the different-name phase grounding automatically generate fault information values of all the analog terminals and analog quantity output of the tested terminal according to the positions of the fault points, and control the digital signal output of the 5G distributed terminal analog unit.
In a further aspect of the present invention,
the fault trigger unit comprises a 5G intelligent distributed fault unit and a 5G differential protection fault unit.
Further, in the above-mentioned case,
and the 5G intelligent distributed fault unit generates fault information values of all the analog terminals and analog quantity output of the tested terminals according to the test requirements of 5G intelligent distributed feeder automation, and controls digital signal output of the 5G distributed terminal analog unit.
Further, in the above-mentioned case,
and the 5G differential protection fault unit generates fault information values of all the analog terminals and analog quantity output of the tested terminal according to the test requirements of 5G differential protection, and controls digital signal output of the 5G distributed terminal analog unit.
Further, in the above-mentioned case,
the information security testing unit scans illegal ports and information security risks of the 5G distributed terminal, can simulate network attack behaviors such as pseudo terminal intrusion, pseudo message instruction sending, message instruction tampering and the like, and tests the security protection capability of the distributed terminal.
Further, in the above-mentioned case,
the defect control unit directly controls the 5G communication multi-state simulation unit, the 5G distributed terminal simulation unit and the information safety test unit, various defects of the simulation terminal in an actual operation state are simulated, the defect types comprise switch refusing, communication long delay, communication interruption, message loss, pseudo terminal invasion, pseudo message instruction sending, message instruction tampering and the like, and the accuracy of an internal algorithm of the 5G distributed terminal under the influence of the defects is tested.
The implementation process of the invention is as follows:
(1) And 5G distributed terminal topology self-adaptive capability test. According to the field network structure and the switch installation position, the topology network structure is drawn in the topology checking unit, the installation positions of the tested terminal and other terminals are set, a terminal topology checking program is started, digital signals are transmitted to the tested terminal through the 5G distributed terminal simulation unit and the 5G communication multi-state simulation unit, and the topology self-adaptive capacity of the 5G distributed terminal in the states of normal operation, change of operation modes, access of new terminals, removal of old terminals and the like is checked.
(2) And (5) testing the protection logic algorithm in a normal state. Through a fault trigger unit interface, fault points can be added in the drawn topological network at will, and fault types can be selected, including three-phase short circuit, two-phase short circuit grounding, single-phase grounding, different-name-phase grounding and the like. And starting a fault trigger unit, wherein the fault trigger unit can output fault analog quantity of the position of the tested 5G terminal, simultaneously controls the digital signal quantity output of each analog terminal in the 5G distributed terminal analog unit according to the test logic of the internal 5G intelligent distributed feeder automation fault unit or the differential protection fault unit, and interacts fault information with the tested 5G distributed terminal through the 5G communication multi-state analog unit to realize the intelligent distributed feeder automation function test or the differential protection function test of the 5G distributed terminal.
(3) And (5) testing information security protection. And connecting the device network interface with the tested 5G distributed terminal, wherein the information security testing unit can scan the terminal and test illegal ports and information security risks in the terminal.
(4) And testing defect coping capability. Starting a defect control unit, selecting defect faults needing to be added, and simulating the fault defects of damage of a 5G communication module, switch failure, PT secondary disconnection and the like by the defect control unit through controlling a 5G distributed terminal simulation unit to verify the protection adaptability of the tested device; the defect control unit can simulate the defect problems of a 5G communication burst long delay state, a communication interruption state, a message loss state and the like by controlling the 5G communication multi-state simulation unit, and verify the protection adaptability of the tested device; the defect control unit can simulate network attack behaviors such as pseudo terminal intrusion, pseudo message instruction sending, message instruction tampering and the like through the control information security testing unit, and transmits a digital signal to the tested terminal through the 5G distributed terminal simulation unit and the 5G communication multi-state simulation unit to verify the protection adaptability and the security protection capability of the tested terminal.
The device of the embodiment considers the particularity of the 5G wireless communication, carries out simulation aiming at the defect problem which may occur in the 5G wireless communication, and can better verify the adaptability and the reliability of the algorithm.
The device of the embodiment can simulate a plurality of 5G distributed terminals at the same time, support the R-GOOSE network transmission protocol, meet the signal transmission requirement between the 5G distributed terminals and facilitate the development of related tests.
The fault triggering unit of the device of the embodiment has digital simulation capability, can have topological relation and fault position, automatically controls and outputs digital signals of each terminal and analog signals of the tested terminal, does not need to manually complete parameter configuration of each associated terminal, and has higher automation and intelligence level.
The device of the embodiment can test the terminal with the topology self-identification function and verify the correctness of the topology self-identification function in the terminal.
The device of the embodiment can solve various defects encountered in the terminal operation process, can perform comprehensive tests on the aspects of main protection, backup protection, locking mechanism, safety protection and the like of the terminal, and has more comprehensive functions.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; it is obvious as a person skilled in the art to combine several aspects of the invention. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. A5G distributed terminal testing device is characterized in that: the system comprises a topology checking unit, a 5G distributed terminal simulation unit, a 5G communication multi-state simulation unit, a fault triggering unit, an information safety testing unit, a defect control unit and an external interface;
the external interface comprises an analog quantity interface, a 5G wireless digital quantity output interface and a network interface;
the topology checking unit is respectively in communication connection with the fault triggering unit and the 5G distributed terminal analog unit, the 5G distributed terminal analog unit is in communication connection with the 5G communication multi-state analog unit, and the 5G communication multi-state analog unit is in communication connection with the 5G wireless digital output interface;
the fault trigger unit is respectively in communication connection with the 5G distributed terminal simulation unit and the analog quantity interface;
the defect control unit is respectively in communication connection with the 5G distributed terminal simulation unit, the 5G communication multi-state simulation unit and the information safety test unit, the information safety test unit is in communication connection with the 5G distributed terminal simulation unit, and the information safety test unit is in communication connection with the network interface;
the topology checking unit supports automatic drawing of network topology, sets the position of the terminal to be tested and other terminal positions according to installation requirements, simulates the field working conditions of normal operation, change of operation modes, new circuit input or old terminal removal, and is used for verifying the correctness of the topology self-identification function in the terminal to be tested;
the 5G distributed terminal simulation unit simulates a plurality of 5G distributed terminals simultaneously, transmits topology identification instructions, running state information and fault state information with the tested terminal through a 5G channel according to the requirements of a topological structure, is provided with a multi-interval 5G communication module, supports IP network protocol transmission of R-GOOSE, simulates normal states of switch opening, closing and energy storage, and simulates a defect state that the switch refuses to move;
the 5G communication multi-state simulation unit simulates a 5G communication normal state, a burst long delay state, a communication interruption state or a message loss state, tests whether the main protection and the backup protection of the 5G distributed terminal are started correctly and act accurately under the 5G communication normal state, the burst long delay state, the communication interruption state or the message loss state, and verifies the correctness of the self-repair function of the internal link of the terminal;
the fault triggering unit sets a fault occurrence position and a fault type based on a topological structure established by the topology checking unit, wherein the fault type comprises: three-phase short circuit, two-phase short circuit grounding, single-phase grounding and different-name phase grounding, automatically generating fault information values of all analog terminals and analog quantity output of the tested terminal according to the positions of fault points, and controlling digital signal output of a 5G distributed terminal analog unit;
the information security testing unit scans illegal ports and information security risks of the 5G distributed terminal, simulates network attack behaviors such as pseudo terminal intrusion, pseudo message instruction sending, message instruction tampering and the like, and tests the security protection capability of the distributed terminal;
the defect control unit directly controls the 5G communication multi-state simulation unit, the 5G distributed terminal simulation unit and the information safety test unit, various defects of the simulation terminal in an actual operation state are simulated, the defect types comprise switch refusing, communication long delay, communication interruption, message loss, pseudo terminal invasion, pseudo message instruction sending and message instruction tampering, and the accuracy of an internal algorithm of the 5G distributed terminal under the influence of the defects is tested.
2. The 5G distributed terminal testing device according to claim 1, wherein: the fault trigger unit comprises a 5G intelligent distributed fault unit and a 5G differential protection fault unit.
3. The 5G distributed terminal testing device according to claim 2, wherein: and the 5G intelligent distributed fault unit generates fault information values of all the analog terminals and analog quantity output of the tested terminals according to the test requirements of 5G intelligent distributed feeder automation, and controls digital signal output of the 5G distributed terminal analog unit.
4. The 5G distributed terminal testing device according to claim 2, wherein: and the 5G differential protection fault unit generates fault information values of all the analog terminals and analog quantity output of the tested terminal according to the test requirements of 5G differential protection, and controls digital signal output of the 5G distributed terminal analog unit.
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| WO2014090025A1 (en) * | 2012-12-11 | 2014-06-19 | 国网上海市电力公司 | On-line and off-line integrated analysis and testing method for smart substation |
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