CN114244440B - Method, device and storage medium for information interaction of stations in self-healing system - Google Patents

Method, device and storage medium for information interaction of stations in self-healing system Download PDF

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Publication number
CN114244440B
CN114244440B CN202111500129.5A CN202111500129A CN114244440B CN 114244440 B CN114244440 B CN 114244440B CN 202111500129 A CN202111500129 A CN 202111500129A CN 114244440 B CN114244440 B CN 114244440B
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self
healing
terminal
healing terminal
signal
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CN114244440A (en
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肖遥
程禹澍
吴道玉
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Nanjing Fengdao Electric Power Automation Co ltd
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Nanjing Fengdao Electric Power Automation Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H04B10/275—Ring-type networks
    • 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
    • H02J13/00016—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 using a wired telecommunication network or a data transmission bus
    • H02J13/00017—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 using a wired telecommunication network or a data transmission bus using optical fiber
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Power Engineering (AREA)
  • Small-Scale Networks (AREA)

Abstract

The invention discloses a method, a device and a storage medium for information interaction of stations in a self-healing system, wherein the method comprises the following steps: the first self-healing terminal is positioned at the head end of the optical fiber ring network, detects the state of the first self-healing terminal and sends a state signal to the self-healing terminal adjacent to the first self-healing terminal, and the self-healing terminal adjacent to the first self-healing terminal is positioned at the middle section of the optical fiber ring network; each self-healing terminal in the second self-healing terminal group positioned in the middle section of the optical fiber ring network detects the state of the self-healing terminal and carries out logic judgment on the state sent by the self-healing terminal adjacent to the upper side, and sends a state signal to the self-healing terminal adjacent to the lower side; and the third self-healing terminal is positioned at the tail end of the optical fiber ring network, detects the state of the third self-healing terminal and carries out logic judgment on the state sent by the self-healing terminal adjacent to the third self-healing terminal, determines the running state of the system, and the self-healing terminal adjacent to the second self-healing terminal is positioned at the middle section of the optical fiber ring network. When one side of the optical fiber is abnormal, the signal sends information to the appointed self-healing terminal through the other side of the ring network, so that accurate and timely response can be ensured when the abnormality occurs, and the reliability is high.

Description

Method, device and storage medium for information interaction of stations in self-healing system
Technical Field
The invention relates to the technical field of power distribution networks of power systems, in particular to a method, a device and a storage medium for information interaction of stations in a self-healing system.
Background
The power distribution network is used as a link for distributing electric energy in the power system, is directly oriented to users, and the power supply reliability of the power distribution network is very important for the users. In order to improve the power supply reliability, the automatic switching-on device of the standby power supply is arranged in a station in the conventional way, when one section of bus is powered off, the other section of bus is used for supplying power, but the time interval of switching-on of the standby power supply is longer. The power distribution network self-healing system is used in many places nowadays, the stand-by stations are mutually used as standby power supplies, the power supply recovery interval is greatly shortened, and the self-healing system can act correctly and quickly and is supported by a quick and stable information interaction means.
In the related technology, the invention patent application with the patent application number of 201910179537.1 discloses a multi-stage power grid collaborative self-healing system and a self-healing method, wherein the multi-stage power grid collaborative self-healing system comprises two groups of first substations, a plurality of groups of switching stations and a plurality of groups of second substations, the plurality of groups of second substations are sequentially connected in sequence, and the two groups of first substations are respectively connected with a first group of second substations and a last group of second substations; the first group of switching stations and the last group of switching stations are respectively and electrically connected with the two groups of second substations. The electric quantity, the switching state information and the action signals of the bus where the power grid is located and the adjacent bus are obtained through the open loop point switch, and whether the power grid meets the charging, discharging or action conditions is judged through the signals. When the system has short-circuit fault, each stage of self-healing system carries out logic judgment according to the collected signals, so that an open-loop point switch is closed to restore power supply to the fault power-losing area; the method for realizing cooperative self-healing through signal quantity interaction instead of time level difference cooperation can shorten power supply recovery time and reduce the workload of setting a fixed value.
However, in the scheme, the open loop points only see the electrical quantity of the open loop points and the adjacent bus, if a plurality of open loop points exist and are not adjacent, the open loop points cannot be processed, a plurality of groups of sequential handles are connected in an open loop mode, and after any section in the middle is broken, the whole device cannot communicate.
Disclosure of Invention
The technical problem to be solved by the invention is how to quickly and reliably receive the operation condition of the whole system.
The invention solves the technical problems by the following technical means:
in a first aspect, an embodiment of the present invention provides a method for information interaction between stations in a self-healing system, where self-healing terminals in different switchyard in the self-healing system are connected by optical cable handholds to form an optical fiber ring network, the method includes:
the first self-healing terminal is positioned at the head end of the optical fiber ring network, detects the state of the first self-healing terminal and sends a state signal to the self-healing terminal adjacent to the first self-healing terminal, and the self-healing terminal adjacent to the first self-healing terminal is positioned at the middle section of the optical fiber ring network;
each self-healing terminal in the second self-healing terminal group positioned in the middle section of the optical fiber ring network detects the self-healing terminal state and carries out logic judgment on the state sent by the self-healing terminal adjacent to the upper side, and sends a state signal to the self-healing terminal adjacent to the lower side;
and the third self-healing terminal is positioned at the tail end of the optical fiber ring network, detects the state of the third self-healing terminal and carries out logic judgment on the state sent by the self-healing terminal adjacent to the third self-healing terminal, determines the running state of the system, and the self-healing terminal adjacent to the second self-healing terminal is positioned at the middle section of the optical fiber ring network.
The self-healing terminals in different switch stations in the whole self-healing system are connected in a hand-in mode through optical cables to form an optical fiber ring network, the self-healing terminals are used for sorting information of the station where the self-healing terminals are located and received information of two adjacent switch stations and then sending the information to the two adjacent switch stations, when one side of optical fiber is abnormal, signals are sent to the appointed self-healing terminals through the other side of the ring network, accurate and timely response is ensured when the abnormality occurs, fault recovery and power supply are correctly isolated, the operation of the whole system is not affected when one optical fiber in the system is abnormal, the on-site implementation is easy, the reliability is high, and the self-healing system has good application prospect.
Further, the method further comprises:
an ID is allocated to each healing terminal in the optical fiber ring network in advance;
and judging the self-healing terminal adjacent to the self-healing terminal according to the ID of the current self-healing terminal.
Further, the pre-allocating an ID to each healing terminal in the optical fiber ring network includes:
and regarding the optical cables between the self-healing terminals, taking the self-healing terminals connected on the same cable as adjacent terminals and distributing the ID.
Further, the status signal is a common signal for distinguishing read-write permission, and includes:
the charging signal can be used for reading and writing the permission of each station;
the discharge signal is provided, and the read-write permission is that each station can read and write;
the operation mode signal, the read-write authority is only open-loop point writable, the other stations read only;
open loop point position signal, read-write authority is that only open loop point can be written, other stations read only;
the open loop point number signal, the read-write authority is that only open loop points can be written, and other stations read only;
the charging completion signal, the read-write authority is that only the tail end can be written, and other stations read only;
the system operation mode signal, the read-write authority is that only the tail end can be written, and other stations read only;
the system opens the ring point position signal, the read-write authority is that only the tail end can be written, and the rest stations read only.
Further, the first self-healing terminal at the head end of the optical fiber ring network detects the state of the first self-healing terminal and sends a state signal to the self-healing terminal adjacent to the first self-healing terminal, which comprises:
the first self-healing terminal detects self-discharge state and sends a state signal to the self-healing terminal adjacent to the self-healing terminal in the middle section of the optical fiber ring network;
and if the first self-healing terminal is an open loop point, the state signal comprises the running mode signal, the open loop point position signal and the open loop point number signal.
Further, the second self-healing terminal group includes at least one self-healing terminal, the self-healing terminal detects the self-status and carries out logic judgment with the status sent by the self-healing terminal adjacent to the upper side, and sending the status signal to the self-healing terminal adjacent to the lower side includes:
the self-healing terminal analyzes the self-healing terminal state and the state sent by the self-healing terminal adjacent to the upper side, and if both terminals are chargeable, the self-healing terminal sends the self-healing terminal chargeable signal to the self-healing terminal adjacent to the lower side;
if any one of the two terminals is the discharge signal, the self-healing terminal sends the discharge signal to the self-healing terminal adjacent to the lower side;
if the self-healing terminal is an open loop point, the self-healing terminal writes a status signal to the self-healing terminal adjacent to the lower side, wherein the status signal comprises the operation mode signal, the open loop point position signal and the open loop point number signal, and the open loop point number signal is equal to the number of open loop points sent by the self-healing terminal adjacent to the upper side plus 1.
Further, the third self-healing terminal located at the tail end of the optical fiber ring network detects the self-healing terminal state and logically judges the state sent by the adjacent self-healing terminal, and determines the running state of the system, including:
if the third self-healing terminal is an open loop point, the third self-healing terminal determines that the running state comprises the running mode signal, the open loop point position signal and the open loop point number signal, wherein the open loop point number signal is equal to the number of open loop points sent by a self-healing terminal adjacent to the third self-healing terminal plus 1;
if the third self-healing terminal and the self-healing terminal of the third self-healing terminal vector are chargeable, the discharging signals are not generated, and the number of open loop points read by the third self-healing terminal is 1, the third self-healing terminal determines that the running state comprises charging completion, a system running mode and a system open loop point position.
Further, the method further comprises:
and the third self-healing terminal sequentially sends the determined running states to the first self-healing terminal.
In a second aspect, an embodiment of the present invention employs a device for information interaction between stations in a self-healing system, where self-healing terminals in different switchyard in the self-healing system are connected by optical cable handholds to form an optical fiber ring network, the device includes:
the first sending module is used for detecting the state of the first self-healing terminal positioned at the head end of the optical fiber ring network and sending a state signal to the self-healing terminal adjacent to the first self-healing terminal, and the self-healing terminal adjacent to the first self-healing terminal is positioned at the middle section of the optical fiber ring network;
the second sending module is used for detecting the self state of each self-healing terminal in a second self-healing terminal group positioned in the middle section of the optical fiber ring network, logically judging the state sent by the self-healing terminal adjacent to the upper side, and sending a state signal to the self-healing terminal adjacent to the lower side;
the determining module is used for detecting the state of the third self-healing terminal positioned at the tail end of the optical fiber ring network and carrying out logic judgment on the state sent by the self-healing terminal adjacent to the third self-healing terminal, determining the running state of the system, and the self-healing terminal adjacent to the second self-healing terminal is positioned at the middle section of the optical fiber ring network.
In a third aspect, embodiments of the present invention employ a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method as described above.
The invention has the advantages that:
(1) According to the invention, the self-healing terminals in different switch stations in the whole self-healing system are connected in a hand-in mode by using optical cables to form the optical fiber ring network, the self-healing terminals are used for sorting the information of the station where the self-healing terminal is located and the received information of two adjacent switch stations and then transmitting the information to the two adjacent switch stations, when one side of the optical fiber is abnormal, the signal is transmitted to the appointed self-healing terminal through the other side of the ring network, so that the accurate and timely response can be ensured when the abnormality occurs, the fault is isolated correctly, the power supply is recovered, the operation of the whole system is not affected when one optical fiber in the system is abnormal, the on-site implementation is easy, the reliability is high, and the application prospect is good.
(2) For a station, some signals can be read only, some signals can be read and written, the whole system is convenient for information arrangement by distinguishing the public signal read-write authority, and the self-healing terminal at the tail end determines the operation mode.
(3) The invention gathers the information of the whole system and sends the information to the self-healing terminal at the tail end of the optical fiber ring network for processing, and can process the condition of a plurality of open loop points.
(4) For detecting the charge and discharge conditions, the self-healing terminal at the head end of the optical fiber ring network initiates the charge and discharge conditions of each station step by step, and the self-healing terminal at the tail end of the optical fiber ring network uniformly processes the charge and discharge conditions.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a flow chart of a method of information interaction between stations in a self-healing system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an optical fiber ring network architecture according to an embodiment of the present invention;
FIG. 3 is a communication flow chart of information interaction of respective call terminals in the first embodiment of the present invention;
fig. 4 is a block diagram of a device for information interaction between stations in the self-healing system according to the second embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, a first embodiment of the present invention discloses a method for information interaction between stations in a self-healing system, where self-healing terminals in different switchyard in the self-healing system are connected by optical cable handholds to form an optical fiber ring network, and the method includes the following steps:
s10, a first self-healing terminal positioned at the head end of the optical fiber ring network detects the state of the self-healing terminal and sends a state signal to the self-healing terminal adjacent to the self-healing terminal, and the self-healing terminal adjacent to the first self-healing terminal is positioned at the middle section of the optical fiber ring network.
S20, each self-healing terminal in the second self-healing terminal group positioned in the middle section of the optical fiber ring network detects the state of the self-healing terminal and carries out logic judgment on the state sent by the self-healing terminal adjacent to the upper side, and sends a state signal to the self-healing terminal adjacent to the lower side.
S30, detecting the state of the third self-healing terminal positioned at the tail end of the optical fiber ring network, carrying out logic judgment on the state sent by the self-healing terminal adjacent to the third self-healing terminal, determining the running state of the system, and positioning the self-healing terminal adjacent to the second self-healing terminal at the middle section of the optical fiber ring network.
The embodiment forms the optical fiber ring network by connecting the self-healing terminals in different switch stations in the whole self-healing system in a hand-in mode by using optical cables, the self-healing terminals arrange the information of the station where the self-healing terminal is positioned and the received information of two adjacent switch stations and then send the information to the two adjacent switch stations, because a serial communication mode is adopted, when one side optical fiber is abnormal, a signal sends the information to a designated self-healing terminal through the other side of the ring network, thereby ensuring accurate and timely response when the abnormality occurs, correctly isolating the fault and recovering the power supply, when one optical fiber in the system is abnormal, the operation of the whole system is not influenced, the on-site implementation is easy, the reliability is high,
in some embodiments, the method further comprises:
an ID is allocated to each healing terminal in the optical fiber ring network in advance;
and judging the self-healing terminal adjacent to the self-healing terminal according to the ID of the current self-healing terminal.
In some embodiments, said pre-assigning IDs to respective healing terminals in said fiber ring network comprises:
and regarding the optical cables between the self-healing terminals, taking the self-healing terminals connected on the same cable as adjacent terminals and distributing the ID.
Specifically, as shown in fig. 2, taking the whole self-healing system formed by 4 stations as an example, the self-healing terminals connected to the same cable are used as adjacent terminals, and ID numbers are allocated to the self-healing terminals as follows: device 0, device 1, device 2 and device 3, wherein device 0 is considered as a head end, device 3 is set as a tail end, and device 1 and device 2 are self-healing terminals of the middle section of the optical fiber ring network. Such as: the self-healing system is characterized in that the power supply of the whole system is ensured by double power supplies, when one side fails, the open loop point is switched on, the other side supplies power, the head end of the whole system is the power supply S1 upwards, the tail end of the whole system is the power supply S4 downwards, so that the head end and the tail end are directly connected with the power supply through a cable, the sequence can be exchanged, and the ID sequence shown in figure 2 is 0,1,2,3 or 3,2,1,0.
In particular, when two self-healing terminals are included in a general switching station, as shown in fig. 2, the outer self-healing terminals in different switching stations are connected by cables, the inner self-healing terminals are connected by cables, and the ID numbers assigned to the self-healing terminals in the same switching station are the same.
It should be noted that, in this embodiment, the adjacent self-healing terminals are determined by the ID numbers allocated in advance, not according to whether the optical fibers are directly connected, and when the optical fibers on one side are abnormal, the signal can send information to the self-healing terminal with the specified ID through the other side of the ring network. Such as: as shown in fig. 2, when the device 0 transmits a signal to the device 1, if an abnormality occurs in the optical fiber between the device 0 and the device 1, the device 1 may transmit a signal to the device 0 via the device 3 and the device 2, so as to ensure that the operation of the whole system is not affected.
In some embodiments, the status signal is a common signal for distinguishing read-write rights, including:
the charging signal can be used for reading and writing the permission of each station;
the discharge signal is provided, and the read-write permission is that each station can read and write;
the operation mode signal, the read-write authority is only open-loop point writable, the other stations read only;
open loop point position signal, read-write authority is that only open loop point can be written, other stations read only;
the open loop point number signal, the read-write authority is that only open loop points can be written, and other stations read only;
the charging completion signal, the read-write authority is that only the tail end can be written, and other stations read only;
the system operation mode signal, the read-write authority is that only the tail end can be written, and other stations read only;
the system opens the ring point position signal, the read-write authority is that only the tail end can be written, and the rest stations read only.
It should be noted that, for a station, some signals can only be read, and some signals can be read and written, so in this embodiment, by configuring a message, the read-write permission of a common signal is defined, so that the signal arrangement of the whole system is facilitated, and the self-healing terminal at the tail end can quickly receive the operation condition of the whole system, and process and determine the operation state of the system.
In some embodiments, in step S10, the first self-healing terminal located at the head end of the optical fiber ring network detects its own status and sends a status signal to the self-healing terminal adjacent thereto, including the following steps:
the first self-healing terminal detects self-discharge state and sends a state signal to the self-healing terminal adjacent to the self-healing terminal in the middle section of the optical fiber ring network;
and if the first self-healing terminal is an open loop point, the state signal comprises the running mode signal, the open loop point position signal and the open loop point number signal.
In some embodiments, in the step S20, the second self-healing terminal group includes at least one self-healing terminal, and the self-healing terminal detects its own state and logically determines the state sent by the self-healing terminal adjacent to the upper side, and sends a state signal to the self-healing terminal adjacent to the lower side, including the following steps:
the self-healing terminal analyzes the self-healing terminal state and the state sent by the self-healing terminal adjacent to the upper side, and if both terminals are chargeable, the self-healing terminal sends the self-healing terminal chargeable signal to the self-healing terminal adjacent to the lower side;
if any one of the two terminals is the discharge signal, the self-healing terminal sends the discharge signal to the self-healing terminal adjacent to the lower side;
if the self-healing terminal is an open loop point, the self-healing terminal writes a status signal to the self-healing terminal adjacent to the lower side, wherein the status signal comprises the operation mode signal, the open loop point position signal and the open loop point number signal, and the open loop point number signal is equal to the number of open loop points sent by the self-healing terminal adjacent to the upper side plus 1.
In some embodiments, in step S30, a third self-healing terminal located at the tail end of the optical fiber ring network detects its own state and performs logic judgment on the states sent by the self-healing terminals adjacent to the own state, so as to determine the operation state of the system, and the method includes the following steps:
if the third self-healing terminal is an open loop point, the third self-healing terminal determines that the running state comprises the running mode signal, the open loop point position signal and the open loop point number signal, wherein the open loop point number signal is equal to the number of open loop points sent by a self-healing terminal adjacent to the third self-healing terminal plus 1;
if the third self-healing terminal and the self-healing terminal of the third self-healing terminal vector are chargeable, the discharging signals are not generated, and the number of open loop points read by the third self-healing terminal is 1, the third self-healing terminal determines that the running state comprises charging completion, a system running mode and a system open loop point position.
As shown in fig. 2 to 3, taking the example of the whole charge and discharge of the self-healing system composed of 4 stations:
(1) The device 0 detects the self charge and discharge state and automatically sends a signal to the device 1; if the device 0 is an open loop point, the device 0 can write an operation mode, an open loop point position and an open loop point number signal to send to the device 1;
(2) Device 1 analyzes the signals of device 0 and itself, and if both device 0 and device 1 are chargeable, device 1 sends a "home chargeable" signal to device 2; if either device 0 or device 1 has a discharge signal, device 1 transmits a "discharge signal" to device 2; if the device 1 is an open loop point, the device 1 can write an operation mode, an open loop point position and an open loop point number, wherein the open loop point number is equal to the number sent by the device 0 plus 1, and the open loop point number is sent to the device 2;
(3) After the processing of the device 1 is finished, automatically sending a signal to the device 2, analyzing the signals of the device 1 and the device 2, and if the device 1 and the device 2 are chargeable, sending a 'self-station chargeable' signal to the device 3 by the device 2; if either device 1 or device 2 has a discharge signal, device 2 transmits a "discharge signal" to device 3; if the device 2 is an open loop point, the device 2 can write an operation mode, an open loop point position and an open loop point number, wherein the open loop point number is equal to the number sent by the device 2 plus 1, and the open loop point number is sent to the device 3;
(3) After the processing of the device 2 is finished, automatically sending a signal to the device 3, analyzing the signals of the device 2 and the device 3, and if the device 3 is an open loop point, writing an operation mode, an open loop point position and an open loop point number by the device 3, wherein the open loop point number is equal to the number sent by the device 2 plus 1; if both device 2 and device 3 are chargeable and neither device 2 nor device 3 has a "discharge present" signal, while device 3 reads that the "number of open loop points" is equal to 1, device 3 writes "charge complete", "system run mode" and "system open loop point position", sends to device 2, device 2 sends to device 1, and device 1 sends to device 0.
Therefore, in this embodiment, all self-healing terminals operate according to the signals of "charging complete", "system operation mode" and "system open loop point position", so that charging can be performed together, and the operation is performed in a unified state.
In some embodiments, the method further comprises:
and the third self-healing terminal sequentially sends the determined running states to the first self-healing terminal.
It should be noted that, as shown in fig. 3, after determining the running state of the system, the third self-healing terminal such as the device 3 writes the running state of the system to send information to the self-healing terminal such as the device 2 in the middle section of the optical fiber ring network, the device 2 adjusts according to the running state of the system sent by the device 3, and sends the running state information to the device 1, and the device 1 adjusts according to the running state sent by the device 2, and sends the running state to the device 0, that is, the head-end device, so that the device 0 adjusts according to the running state of the system sent by the device 1.
In some embodiments, the self-healing terminal is internally provided with an FPGA, and the data is transmitted point-to-point through the FPGA, so that compared with a conventional goose network, the data is transmitted point-to-point through the FPGA, and meanwhile, a network storm is not generated.
As shown in fig. 4, a second embodiment of the present invention discloses a device for information interaction between stations in a self-healing system, where self-healing terminals in different switchyard in the self-healing system are connected by optical cable handholds to form an optical fiber ring network, and the device includes:
the first sending module 10 is configured to detect a self-healing terminal located at a head end of the optical fiber ring network, and send a status signal to a self-healing terminal adjacent to the self-healing terminal, where the self-healing terminal adjacent to the first self-healing terminal is located at a middle section of the optical fiber ring network;
the second sending module 20 is configured to detect a state of each self-healing terminal in the second self-healing terminal group located in the middle section of the optical fiber ring network, logically determine a state sent by a self-healing terminal adjacent to the upper side, and send a state signal to a self-healing terminal adjacent to the lower side;
the determining module 30 is configured to detect a state of the third self-healing terminal located at the tail end of the optical fiber ring network and logically determine a state sent by the self-healing terminal adjacent to the third self-healing terminal, and determine an operation state of the system, where the self-healing terminal adjacent to the second self-healing terminal is located at the middle section of the optical fiber ring network.
The embodiment forms the optical fiber ring network by connecting the self-healing terminals in different switch stations in the whole self-healing system in a hand-in mode by using optical cables, the self-healing terminals arrange the information of the station where the self-healing terminal is positioned and the received information of two adjacent switch stations and then send the information to the two adjacent switch stations, because a serial communication mode is adopted, when one side optical fiber is abnormal, a signal sends the information to a designated self-healing terminal through the other side of the ring network, thereby ensuring accurate and timely response when the abnormality occurs, correctly isolating the fault and recovering the power supply, when one optical fiber in the system is abnormal, the operation of the whole system is not influenced, the on-site implementation is easy, the reliability is high,
in some embodiments, the apparatus further comprises an ID allocation module for:
an ID is allocated to each healing terminal in the optical fiber ring network in advance;
and judging the self-healing terminal adjacent to the self-healing terminal according to the ID of the current self-healing terminal.
Specifically, for the optical cable between the self-healing terminals, the self-healing terminals connected to the same one of the cables are regarded as adjacent terminals and the IDs are assigned.
In some embodiments, the apparatus further includes a permission determining module, configured to determine a read-write permission of the common signal, specifically:
the charging signal can be used for reading and writing the permission of each station;
the discharge signal is provided, and the read-write permission is that each station can read and write;
the operation mode signal, the read-write authority is only open-loop point writable, the other stations read only;
open loop point position signal, read-write authority is that only open loop point can be written, other stations read only;
the open loop point number signal, the read-write authority is that only open loop points can be written, and other stations read only;
the charging completion signal, the read-write authority is that only the tail end can be written, and other stations read only;
the system operation mode signal, the read-write authority is that only the tail end can be written, and other stations read only;
the system opens the ring point position signal, the read-write authority is that only the tail end can be written, and the rest stations read only.
In some embodiments, the first sending module 10 is specifically configured to:
the first self-healing terminal detects self-discharge state and sends a state signal to the self-healing terminal adjacent to the self-healing terminal in the middle section of the optical fiber ring network;
and if the first self-healing terminal is an open loop point, the state signal comprises the running mode signal, the open loop point position signal and the open loop point number signal.
In some embodiments, the second sending module 20 is specifically configured to:
the self-healing terminal analyzes the self-healing terminal state and the state sent by the self-healing terminal adjacent to the upper side, and if both terminals are chargeable, the self-healing terminal sends the self-healing terminal chargeable signal to the self-healing terminal adjacent to the lower side;
if any one of the two terminals is the discharge signal, the self-healing terminal sends the discharge signal to the self-healing terminal adjacent to the lower side;
if the self-healing terminal is an open loop point, the self-healing terminal writes a status signal to the self-healing terminal adjacent to the lower side, wherein the status signal comprises the operation mode signal, the open loop point position signal and the open loop point number signal, and the open loop point number signal is equal to the number of open loop points sent by the self-healing terminal adjacent to the upper side plus 1.
In some embodiments, the determining module 30 is specifically configured to:
if the third self-healing terminal is an open loop point, the third self-healing terminal determines that the running state comprises the running mode signal, the open loop point position signal and the open loop point number signal, wherein the open loop point number signal is equal to the number of open loop points sent by a self-healing terminal adjacent to the third self-healing terminal plus 1;
if the third self-healing terminal and the self-healing terminal of the third self-healing terminal vector are chargeable, the discharging signals are not generated, and the number of open loop points read by the third self-healing terminal is 1, the third self-healing terminal determines that the running state comprises charging completion, a system running mode and a system open loop point position.
In some embodiments, the apparatus further comprises a state synchronization module, specifically configured to:
and the third self-healing terminal sequentially sends the determined running states to the first self-healing terminal.
It should be noted that, the device for information interaction between each station in the self-healing system disclosed in this embodiment corresponds to the method for information interaction between each station in the self-healing system disclosed in the first embodiment, and has corresponding technical features and effects, which are not described in detail herein.
The third embodiment of the present invention also discloses a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method as described above
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, for example, may be considered as a ordered listing of executable instructions for implementing logical functions, and may be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (9)

1. The method for information interaction among stations in a self-healing system is characterized in that self-healing terminals in different switch stations in the self-healing system are connected through optical cable handholds to form an optical fiber ring network, and the method comprises the following steps:
the first self-healing terminal is positioned at the head end of the optical fiber ring network, detects the state of the first self-healing terminal and sends a state signal to the self-healing terminal adjacent to the first self-healing terminal, and the self-healing terminal adjacent to the first self-healing terminal is positioned at the middle section of the optical fiber ring network;
each self-healing terminal in the second self-healing terminal group positioned in the middle section of the optical fiber ring network detects the self-healing terminal state and carries out logic judgment on the state sent by the self-healing terminal adjacent to the upper side, and sends a state signal to the self-healing terminal adjacent to the lower side;
the third self-healing terminal is positioned at the tail end of the optical fiber ring network, detects the state of the third self-healing terminal and carries out logic judgment on the state sent by the self-healing terminal adjacent to the third self-healing terminal, determines the running state of the system, and sends the determined running state to the first self-healing terminal through the self-healing terminals in the second self-healing terminal group in sequence, wherein the self-healing terminal adjacent to the third self-healing terminal is positioned at the middle section of the optical fiber ring network;
the state signals comprise a chargeable signal and a discharging signal which can be read and written by each self-healing terminal, an operation mode signal, an open loop point position signal and an open loop point number signal which can be written by only an open loop point, and a charge completion signal, a system operation mode signal and a system open loop point position signal which can be written by only a third self-healing terminal.
2. A method of information interaction at stations in a self-healing system according to claim 1, the method further comprising:
an ID is allocated to each healing terminal in the optical fiber ring network in advance;
and judging the self-healing terminal adjacent to the self-healing terminal according to the ID of the current self-healing terminal.
3. The method for information interaction between stations in the self-healing system according to claim 2, wherein the pre-assigning IDs to the respective healing terminals in the optical fiber ring network comprises:
and regarding the optical cables between the self-healing terminals, taking the self-healing terminals connected on the same optical cable as adjacent terminals and distributing the ID.
4. The method for information interaction between stations in a self-healing system according to claim 1, wherein the status signal is a common signal for distinguishing read-write authority, comprising:
the charging signal can be used for reading and writing the permission of each station;
the discharge signal is provided, and the read-write permission is that each station can read and write;
the operation mode signal, the read-write authority is only open-loop point writable, the other stations read only;
open loop point position signal, read-write authority is that only open loop point can be written, other stations read only;
the open loop point number signal, the read-write authority is that only open loop points can be written, and other stations read only;
the charging completion signal, the read-write authority is that only the tail end can be written, and other stations read only;
the system operation mode signal, the read-write authority is that only the tail end can be written, and other stations read only;
the system opens the ring point position signal, the read-write authority is that only the tail end can be written, and the rest stations read only.
5. The method for information interaction between stations in a self-healing system according to claim 4, wherein the first self-healing terminal at the head end of the optical fiber ring network detects its own state and sends a state signal to a self-healing terminal adjacent to the first self-healing terminal, comprising:
the first self-healing terminal detects self-discharge state and sends a state signal to the self-healing terminal adjacent to the self-healing terminal in the middle section of the optical fiber ring network;
and if the first self-healing terminal is an open loop point, the state signal comprises the running mode signal, the open loop point position signal and the open loop point number signal.
6. The method for information interaction between stations in a self-healing system according to claim 1, wherein the second self-healing terminal group includes at least one self-healing terminal, the self-healing terminal detects a state of itself and logically determines a state transmitted from a self-healing terminal adjacent to an upper side, and transmitting a state signal to a self-healing terminal adjacent to a lower side includes:
the self-healing terminal analyzes the self-healing terminal state and the state sent by the self-healing terminal adjacent to the upper side, and if both terminals are chargeable, the self-healing terminal sends a self-healing terminal chargeable signal to the self-healing terminal adjacent to the lower side;
if any one of the two terminals is the discharge signal, the self-healing terminal sends the discharge signal to the self-healing terminal adjacent to the lower side;
if the self-healing terminal is an open loop point, the self-healing terminal writes a status signal to the self-healing terminal adjacent to the lower side, wherein the status signal comprises the operation mode signal, the open loop point position signal and the open loop point number signal, and the open loop point number signal is equal to the number of open loop points sent by the self-healing terminal adjacent to the upper side plus 1.
7. The method for information interaction between stations in a self-healing system according to claim 1, wherein the detecting the state of the third self-healing terminal at the tail end of the optical fiber ring network and the state sent by the adjacent self-healing terminal make logic judgment to determine the operation state of the system includes:
if the third self-healing terminal is an open loop point, the third self-healing terminal determines that the running state comprises the running mode signal, the open loop point position signal and the open loop point number signal, wherein the open loop point number signal is equal to the number of open loop points sent by a self-healing terminal adjacent to the third self-healing terminal plus 1;
if the third self-healing terminal and the self-healing terminal adjacent to the third self-healing terminal are chargeable, the discharging signals are not generated, and the number of open loop points read by the third self-healing terminal is 1, the third self-healing terminal determines that the running state comprises charging completion, a system running mode and a system open loop point position.
8. The utility model provides a device that each station information interaction in self-healing system, its characterized in that, connect through the optical cable hand lace between the self-healing terminal in the different switchyard in the self-healing system and constitute the optic fibre looped netowrk, the device includes:
the first sending module is used for detecting the state of the first self-healing terminal positioned at the head end of the optical fiber ring network and sending a state signal to the self-healing terminal adjacent to the first self-healing terminal, and the self-healing terminal adjacent to the first self-healing terminal is positioned at the middle section of the optical fiber ring network;
the second sending module is used for detecting the self state of each self-healing terminal in a second self-healing terminal group positioned in the middle section of the optical fiber ring network, logically judging the state sent by the self-healing terminal adjacent to the upper side, and sending a state signal to the self-healing terminal adjacent to the lower side;
the determining module is used for detecting the state of a third self-healing terminal positioned at the tail end of the optical fiber ring network and carrying out logic judgment on the state sent by the self-healing terminal adjacent to the third self-healing terminal, determining the running state of the system, and the third self-healing terminal sequentially sends the determined running state to the first self-healing terminal through the self-healing terminals in the second self-healing terminal group, wherein the self-healing terminal adjacent to the third self-healing terminal is positioned at the middle section of the optical fiber ring network;
the state signals comprise a chargeable signal and a discharging signal which can be read and written by each self-healing terminal, an operation mode signal, an open loop point position signal and an open loop point number signal which can be written by only an open loop point, and a charge completion signal, a system operation mode signal and a system open loop point position signal which can be written by only a third self-healing terminal.
9. A computer readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the method according to any of claims 1-7.
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