Cross-transformer-area power failure reporting method and system, equipment and storage medium

Abstract

The invention discloses a cross-transformer-area power failure reporting method and system, equipment and a storage medium, and the method comprises the steps: carrying out the filtering analysis of a received carrier signal of an adjacent transformer area through a slave node of a transformer area, obtaining the node mapping information of the adjacent transformer area, and reporting the mapping information to a master node of the transformer area; the node mapping information refers to a corresponding relationship between the node identifier and the MAC address of the electric meter; and monitoring a power failure event report message of an adjacent transformer area, and after the power failure event report message of the adjacent transformer area is monitored, reporting the power failure event report message of the adjacent transformer area to the main node of the transformer area, so that the main node of the transformer area reports the power failure event report message of the adjacent transformer area to a power grid main station through the concentrator of the transformer area. According to the scheme, the power failure events can be quickly and accurately converged to the power grid master station without omission, and the power failure events can be timely responded and quickly processed.

Description

Technical Field

[0001] The present application relates to the field of power transmission and communication technology, and in particular to a method and system, device, and storage medium for reporting cross-station power outages. Background Art

[0002] With the development of social economy and the improvement of people's living standards, the residential electricity load has increased rapidly, and higher requirements have been placed on the stability of the power grid and the speed of solving power grid failures. When a power outage occurs in residential electricity, the power grid maintenance personnel need to respond in a timely manner, which helps the maintenance personnel to discover hidden dangers early and protect people's lives and property.

[0003] When a power outage occurs in the residential area of ​​the current power grid, the corresponding slave node usually reports the event to the master node (central coordinator, CCO) through the carrier communication network of the area, and then the master node summarizes and reports it to the concentrator. The concentrators in each HPLC (High Power Line Carrie) network then report the power outage event in the area to the area master station. When a power outage occurs at a node in the area, the success rate of reporting the power outage event in the area may be low due to reasons such as low communication success rate of the end node (i.e., the slave node farthest from the master node in the area), conflict loss of event reporting messages, and limited load time of the supercapacitor of the slave node (Station, STA). Summary of the invention

[0004] The embodiments of the present application provide a cross-substation power outage reporting method and system, equipment, and storage medium to solve the problem of low success rate in existing substation power outage event reporting, better ensure that power outage events are quickly and accurately aggregated to the power grid main station without omissions, and respond to and quickly handle power outage events in a timely manner.

[0005] In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0006] On the one hand, an embodiment of the present application provides a method for reporting a cross-station power outage, the method comprising:

[0007] The slave node of this area filters and analyzes the carrier signal received from the adjacent area, obtains the node mapping information of the adjacent area, and reports the mapping information to the master node of this area; the node mapping information refers to the correspondence between the node identifier and the MAC address of the meter;

[0008] The slave node of this substation monitors the power outage event report message of the adjacent substation, and after monitoring the power outage event report message of the adjacent substation, reports the power outage event report message of the adjacent substation to the main node of this substation, so that the main node of this substation reports it to the power grid main station through the concentrator of this substation.

[0009] Optionally, the method further includes: after the networking is completed, the master node of the area triggers and starts the cross-area power outage reporting function of the slave node of the area based on the concentrator of the area.

[0010] Optionally, the master node of the local area triggers the start of the cross-area power outage reporting function of the slave node of the local area based on the concentrator of the local area, including:

[0011] The master node of this area reports the networking completion message to the concentrator of this area;

[0012] Receive the cross-area power outage reporting command issued by the local area concentrator;

[0013] The message for starting the cross-station area power outage reporting is sent to the slave node of this station area through broadcasting, so that the slave node of this station area starts the cross-station area power outage reporting function.

[0014] Optionally, the method further includes: after the power-on initialization of the main node of the area is completed, file synchronization is performed with the concentrator of the area to start the networking process.

[0015] Optionally, the local area slave node filters and analyzes the carrier signal received from the adjacent area to obtain the adjacent area node mapping information, including:

[0016] The local slave node filters and analyzes the carrier signal received from the adjacent station area to obtain the beacon and corresponding application layer message of the adjacent station area;

[0017] The mapping relationship between the adjacent substation node identifier and the meter MAC address is obtained according to the application layer message.

[0018] Optionally, the method further comprises:

[0019] The master node in this area sends neighbor network information query messages to the slave nodes in this area through periodic broadcasting;

[0020] The slave node in the station area reports the mapping information to the master node in the station area, including:

[0021] After receiving the neighbor network information query message broadcast by the master node of the local area, the slave node of the local area reports the acquired adjacent area node mapping information to the master node of the local area.

[0022] Optionally, the method further includes: the master node of the local area aggregates the adjacent area node mapping information received and reported by each slave node of the local area, and generates and stores an adjacent area node mapping information table.

[0023] Optionally, the power outage event reporting message is a power outage event reporting message based on the MAC address of the electricity meter; or it is a power outage event reporting message based on the node bitmap information of adjacent substations; the method also includes: the main node of this substation converts the node bitmap information in the power outage event reporting message based on the adjacent substation node bitmap information into the MAC address of the electricity meter according to the stored adjacent substation node mapping information table.

[0024] Optionally, the method further comprises:

[0025] The master node of this area analyzes and summarizes the power outage event report messages of adjacent areas reported by the slave nodes of this area, and reports the summarized power outage events of adjacent areas to the concentrator of this area;

[0026] The concentrator in this area reports the power outage event in the adjacent area to the power grid master station.

[0027] Optionally, the HPLC link layer protocol is used for communication between the master node of the area and the slave nodes of the area, and between the slave nodes.

[0028] On the other hand, the embodiment of the present application further provides a cross-area power outage reporting system, the system comprising: a plurality of areas, each area comprising: a concentrator, a master node and one or more slave nodes; the master node is arranged on the concentrator;

[0029] The master node is used to complete the networking after power-on initialization is completed;

[0030] The slave node is used to filter and analyze the received carrier signal of the adjacent substation, obtain the node mapping information of the adjacent substation, and report the mapping information to the main node of this substation; the node mapping information refers to the correspondence between the node identifier and the MAC address of the electric meter; monitor the power outage event report message of the adjacent substation, and after monitoring the power outage event report message of the adjacent substation, report the power outage event report message of the adjacent substation to the main node of this substation, so that the main node of this substation reports to the main station of the power grid through the concentrator of this substation.

[0031] On the other hand, an embodiment of the present application further provides a terminal device, the terminal device comprising:

[0032] A receiving module, used for receiving carrier signals from adjacent stations;

[0033] A message analysis module, used to filter and analyze the carrier signal to obtain adjacent station area node mapping information;

[0034] A reporting module, used to report the mapping information to the master node of the station area; the node mapping information refers to the correspondence between the node identifier and the MAC address of the meter;

[0035] Power outage event monitoring module, used to monitor the power outage event reporting messages of adjacent substations;

[0036] The reporting module is also used to report the adjacent power outage event reporting message to the main node of this substation after the power outage event monitoring module detects the adjacent power outage event reporting message, so that the main node of this substation reports it to the power grid main station through the concentrator of this substation.

[0037] Optionally, the receiving module is further used to receive a neighbor network information query message sent by the master node of the local area through periodic broadcasting; the reporting module reports the mapping information to the master node of the local area after the receiving module receives the neighbor network information query message.

[0038] Optionally, the receiving module is further used to receive a message for starting a cross-station area power outage reporting sent by a master node of the original area, and start a cross-station area power outage reporting function.

[0039] On the other hand, an embodiment of the present application further provides a network device for use in a power line carrier meter reading system, wherein the network device includes a concentrator and a central coordinator;

[0040] The central coordinator is used to receive the adjacent power outage event report messages reported by each terminal device in the local area, analyze and summarize the messages, and report the summarized adjacent power outage events to the concentrator;

[0041] The concentrator is used to report the power outage event in the adjacent substation to the power grid master station.

[0042] Optionally, the central coordinator is also used to send neighbor network information query messages to the slave nodes in this area through periodic broadcasting, and receive adjacent area node mapping information reported by each terminal device in this area; the node mapping information refers to the correspondence between the node identifier and the meter MAC address.

[0043] Optionally, the central coordinator is also used to perform networking, and after the networking is completed, report a networking completion message to the concentrator; the concentrator is also used to, after receiving the networking completion message, issue a command to start cross-station power outage reporting to the central coordinator; the central coordinator is also used to, after receiving the command to start cross-station power outage reporting, issue a message to start cross-station power outage reporting to the slave node in this station area via broadcasting, so that the slave node in this station area starts the cross-station power outage reporting function.

[0044] On the other hand, an embodiment of the present application also provides a computer-readable storage medium, which is a non-volatile storage medium or a non-transient storage medium, on which a computer program is stored, and is characterized in that when the computer program is run by a processor, the steps of the cross-station power outage reporting method are executed.

[0045] The cross-area power outage reporting method, system, and device provided in the embodiments of the present application monitor the adjacent area power outage event report message through each node of the present area, and after monitoring the adjacent area power outage event report message, report the adjacent area power outage event report message to the main node of the present area, and then the adjacent area power outage event report message is reported to the power grid main station by the concentrator of the present area. The cross-area power outage reporting method and system provided in the embodiments of the present application solves the problem of underreporting of power outage events at the terminal nodes of each area, and can simultaneously listen to and report power outage event report messages through one or more adjacent areas, ensuring that power outage events are quickly, accurately, and without omissions. Aggregation at the power grid main station ensures that power outage events are quickly, accurately, and without omissions, allowing power grid maintenance personnel to respond to and quickly handle power outage events in a timely manner; and it helps power grid maintenance personnel to determine the fault point after a power grid failure occurs and quickly resolve the failure.

[0046] Furthermore, the cross-station power outage reporting method and system provided in the embodiment of the present application adopts HPLC, and no hardware modification is required to the existing HPLC acquisition system. Only software upgrade is required to meet the cross-station power outage event reporting requirements, which has obvious cost advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is an exemplary introduction to the drawings used in the description of the embodiments. The drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work. The drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation on the present application.

[0048] Figure 1 It is a schematic diagram of the distribution of nodes in the existing substation network;

[0049] Figure 2 This is a flow chart of a method for reporting cross-station power outages provided in an embodiment of the present application;

[0050] Figure 3 This is a schematic diagram of a format of an application layer message in an embodiment of the present application;

[0051] Figure 4 This is a schematic diagram of a format of a neighbor network information message in an embodiment of the present application;

[0052] Figure 5 is another flow chart of the method for reporting cross-station power outages provided in an embodiment of the present application;

[0053] Figure 6 This is a message interaction diagram in the cross-station power outage reporting system provided in an embodiment of the present application;

[0054] Figure 7 This is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application;

[0055] Figure 8 It is a structural diagram of a network device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0056] In order to make the above-mentioned purposes, features and beneficial effects of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0057] It should be noted that the terms used in the embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit this specification. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. In addition, the "plurality" appearing in the embodiments of the present application refers to two or more.

[0058] With the development of digital power grid, HPLC has been widely used, and the carrier protocol is standardized and regulated. The State Grid protocol requires each carrier communication module to work within the specified 4 carrier frequency bands. The default frequency band is 2, 0.781 to 2.930 MHz. Residential electricity consumption is more intensive and concentrated. Most of the neighboring network stations on site are in the same frequency band network. The neighboring stations can intercept the message information of the neighboring network due to the physical connection of the line or the coupling of the carrier signal.

[0059] HPLC technology uses power lines to transmit data, does not require additional communication infrastructure, and is suitable for scenarios where power lines are already available. Figure 1 The figure shows a schematic diagram of the distribution of nodes in the existing substation network.

[0060] In each substation network, there is a master node and multiple slave nodes. The master node is set on the concentrator device, which is the central connection point device connecting terminals, computers or communication devices; the slave node is set on the meter. The master node and the slave nodes communicate through HPLC technology, and the communication between the slave nodes follows the HPLC link layer protocol.

[0061] In order to improve the success rate of reporting power outage events in substations, an embodiment of the present application provides a cross-substation power outage reporting method and system, which monitors the power outage event reporting messages of adjacent substations through each node in the substation, and after monitoring the power outage event reporting messages of adjacent substations, reports the power outage event reporting messages of adjacent substations to the main node of the substation, and then the concentrator of the substation reports the power outage event reporting messages of adjacent substations to the power grid main station, ensuring that the power outage event reporting messages are quickly, accurately and without omissions gathered to the power grid main station, and responding to and quickly handling power outage events in a timely manner.

[0062] like Figure 2 FIG. 1 is a flow chart of a method for reporting a cross-station power outage provided in an embodiment of the present application, comprising the following steps:

[0063] Step 201, the slave node of this area filters and analyzes the carrier signal received from the adjacent area, obtains the mapping information of the slave nodes of the adjacent area, and reports the mapping information to the master node of this area; the node mapping information refers to the correspondence between the node identifier TEI and the meter MAC address.

[0064] The node identifier TEI (Terminal Equipment Identifier) ​​refers to a terminal equipment identifier, and the bitmap information is aggregated information of the node identifier TEI.

[0065] After the cross-area power outage reporting function is started from the node of this area, the carrier signal received from the adjacent area is filtered and analyzed to obtain the beacon SNID and the corresponding application layer message of the adjacent area; the correspondence between the adjacent area node identifier TEI and the meter MAC address is obtained according to the application layer message.

[0066] For example, the beacon SNID of this area is 1. If a beacon frame with SNID 2 is received, according to the site MAC (Media Access Control) address (for example, 111111111111) carried in the application layer message of the beacon frame, that is, the meter MAC address, and the node identifier TEI (for example, 22), it can be obtained that in the area with SNID 2, the meter MAC address corresponding to the node with TEI 22 is 1111111111111.

[0067] In a non-limiting embodiment, the master node of this area can also send a neighbor network information query message to the slave node of this area through periodic broadcasting. Accordingly, after receiving the neighbor network information query message, the slave node of this area reports the obtained neighboring area node mapping information to the master node of this area. The slave node can report the neighboring area node mapping information to the master node of this area through the neighbor network information reporting message.

[0068] In some embodiments, the existing application layer message may be expanded or a new message may be added to obtain the neighbor network information query message and the neighbor network information reporting message.

[0069] The existing application layer messages use a common message format, such as Figure 3 As shown, where:

[0070] The message port number refers to the port number used in application layer message transmission when the CCO interacts with the STA. The value for upgrade services is 0x12, and the value for other services is 0x11.

[0071] The message ID refers to the application layer message ID transmitted between the CCO and the STA. Different message IDs represent different service messages.

[0072] The message control word is set to 0 by default.

[0073] Business messages refer to the business messages corresponding to the message IDs, including meter reading messages, time synchronization messages, event reporting messages, communication test messages, precise time synchronization, slave node active registration messages, and upgrade messages.

[0074] In the embodiment of the present application, the existing message ID can be extended to add a new message ID to indicate the neighbor network information query message and the neighbor network information reporting message, for example:

[0075] The message ID "0x00B1" is defined as a neighbor network information message, and the message port number is 0x11.

[0076] The uplink format of the neighbor network information message (ie, the neighbor network information reporting message) and the downlink format (ie, the neighbor network information query message) are the same.

[0077] The master node (CCO) periodically broadcasts and sends neighbor network information query messages to the slave nodes in the same area. After receiving the neighbor network information query messages, the slave nodes report the neighbor area node mapping information to the CCO.

[0078] A non-limiting specific format of a neighbor network information message is as follows: Figure 4 As shown, the function code is used to distinguish between downlink messages and uplink messages.

[0079] Figure 4 The neighbor network information message shown includes the following fields: protocol version number, message header length, direction bit, start bit, function code, forwarded data length, message sequence number, meter address, and data.

[0080] The protocol version number and message header length are the same as the conventional definitions and will not be repeated here. The definitions of other fields are as follows:

[0081] The direction bit is a 1-bit field, indicating that the downlink message is a message sent by the CCO to the slave node (STA), and the uplink message is a message reported by the STA to the CCO direction.

[0082] The start bit is a 1-bit field, indicating that the data message received by the current node comes from the slave station or the start station. The two parties in communication, the start station refers to the party that actively initiates the command, and the slave station refers to the party that passively receives the command.

[0083] The function code is a 6-bit field, for example, the function codes shown in Table 1 may be defined.

[0084] Table 1

[0085]

[0086]

[0087] The forwarded data length is a 12-bit field that refers to the length of the data field.

[0088] The message sequence number is a 16-bit field, which refers to the sequence number in the CCO query message. The STA uses this sequence number to return when actively reporting.

[0089] The meter address is a 48-bit field. If CCO uses broadcast query, it is all 0xFF. When STA actively reports, it uses its own meter address.

[0090] The length of the data (DATA) byte is variable, and the data content follows the application message. There is no data in the downlink message. For the data (DATA) actively reported by the STA to the CCO, its data (DATA) field is expanded, for example, it can be defined as shown in Table 2.

[0091] Table 2

[0092]

[0093] Of course, in the specific implementation, it is not limited to the above message structure, and other message structures can also be used, which is not limited in this application.

[0094] Correspondingly, the master node of the area aggregates the node mapping information of the adjacent areas reported by the slave nodes of the area to obtain the node mapping information table of the adjacent areas.

[0095] That is to say, the master node of this area summarizes the neighboring area node mapping information table reported by all slave nodes of this area, that is, the correspondence between the node identifier TEI and its bitmap information and the MAC address of all nodes under a certain neighboring area SNID.

[0096] Step 202, the slave node of this substation monitors the power outage event report message of the adjacent substation, and after monitoring the power outage event report message of the adjacent substation, reports the power outage event report message of the adjacent substation to the master node of this substation, so that the master node of this substation reports it to the power grid master station through the concentrator of this substation.

[0097] It should be noted that the adjacent substation power outage event reporting message is also obtained by filtering and analyzing the received carrier signal of the adjacent substation.

[0098] In specific implementation, the power outage event reporting message may have the following two situations:

[0099] (1) The power outage event reporting message is a power outage event reporting message based on the MAC address of the electricity meter;

[0100] (2) The power outage event reporting message is a power outage event reporting message based on the adjacent substation node bitmap information.

[0101] It should be noted that the slave node in this area may receive power outage event reporting messages from multiple slave nodes in adjacent areas, and the slave node in this area can aggregate these messages to form a new message to report to the master node in this area. Specifically, the above two messages based on different address information can be aggregated and reported separately.

[0102] In some embodiments, the cross-station area power outage reporting method may further include the following steps:

[0103] The master node of this substation analyzes and summarizes the adjacent substation power outage event report messages received from the slave nodes of this substation, and reports the summarized adjacent substation power outage events to the concentrator of this substation; the concentrator of this substation reports the adjacent substation power outage events to the power grid master station.

[0104] It should be noted that, since the power outage event report message of the adjacent substation reported by the slave node of this substation can be in the above two forms, for the above-mentioned message (2), that is, the power outage event report message based on the node bitmap information, the master node of this substation also needs to obtain the node identifier TEI according to the bitmap information in the power outage event report message, and convert these node identifiers TEI into the meter MAC address according to the stored adjacent substation node mapping information table. In other words, the address information of the node in the power outage event message reported by the master node of this substation to the concentrator of this substation is the meter MAC address.

[0105] In addition, it should be noted that the node bitmap information may include one or more TEIs, and the master node of the local area needs to parse out the meter MAC address corresponding to each TEI according to the stored adjacent area node mapping information table.

[0106] The master node of this area can use the neighboring network power outage event reporting message to report the power outage event in the adjacent area to the power grid master station.

[0107] Similarly, the neighboring network power outage event reporting message may also be a method of expanding an existing message or adding a new message. The neighboring network power outage event reporting message may include: reporting the number of slave nodes and the addresses of each slave node.

[0108] The cross-substation power outage reporting method provided in the embodiment of the present application can simultaneously listen to and report power outage event reporting messages through one or more adjacent substations, ensuring that power outage events are quickly, accurately, and without omissions gathered at the power grid main station, so that power grid maintenance personnel can respond promptly and quickly handle power outage events; and it helps power grid maintenance personnel to determine the fault point after a power grid failure occurs and quickly resolve the fault.

[0109] In order to further enhance the flexibility of the present application scheme, in some embodiments, the cross-station power outage reporting function can also be controlled, that is, in some application scenarios, this function can be turned on, and in some application scenarios, this function can be turned off, so as to better adapt to different needs in different application scenarios.

[0110] like Figure 5 FIG. 2 is another flow chart of a method for reporting a cross-station power outage provided in an embodiment of the present application, comprising the following steps:

[0111] Step 501, after the network is established, the master node of the area triggers and starts the cross-area power outage reporting function of the slave node of the area based on the concentrator of the area.

[0112] After the power-on initialization of the master node of this area is completed, the file synchronization is performed with the concentrator of this area to start the networking process. The file synchronization means that the concentrator of this area sends the meter file of this area to the master node of this area through the local interface protocol (such as 376.2 protocol, etc.), and the meter file mainly includes information such as the meter address.

[0113] Accordingly, the master node of this area can obtain which slave nodes are in this area according to the meter file, each meter corresponds to a slave node, and network the slave nodes in this area, such as recording the identification information of each slave node. The slave nodes that are not connected to the network can initiate a network application to the master node based on the central beacon sent by the master node and the proxy beacon or discovery beacon sent by the slave nodes that have been connected to the network arranged by the master node.

[0114] After the networking is completed, the master node of this area reports the networking completion message to the concentrator of this area.

[0115] In a non-limiting embodiment, the cross-area power outage reporting function of the slave node in the local area can be started in the following manner:

[0116] After receiving the networking completion message, the local area concentrator sends a command to start reporting cross-area power outages to the local area master node. The command can be sent by the local area concentrator through a local communication interface.

[0117] Accordingly, after receiving the start cross-station power outage reporting command sent by the concentrator of the station area, the master node of the station area sends a start cross-station power outage reporting message to the slave nodes of the station area through broadcasting. The start cross-station power outage reporting message can be sent through a carrier signal.

[0118] Correspondingly, after the slave node in this area receives the message for starting the cross-area power outage reporting broadcast by the master node in this area, the cross-area power outage reporting function is started.

[0119] The command for starting reporting of cross-station power outages and the message for starting reporting of cross-station power outages can be obtained by expanding existing messages or adding new messages.

[0120] It should be noted that the local area concentrator and the local area master node can communicate through the local serial port, using a local interface protocol, such as 376.2 protocol, to send or receive messages. When the local area master node sends a message to start the cross-area power outage report to the local area slave node, the message modulated by the carrier signal can be sent through the power line, and the slave node receives and demodulates it to obtain the corresponding message.

[0121] Step 502: The slave node of the local area filters and analyzes the carrier signal received from the adjacent area, obtains the mapping information of the nodes in the adjacent area, and reports the mapping information to the master node of the local area.

[0122] Step 503, the slave node of this substation monitors the power outage event report message of the adjacent substation, and after monitoring the power outage event report message of the adjacent substation, reports the power outage event report message of the adjacent substation to the master node of this substation, so that the master node of this substation reports it to the power grid master station through the concentrator of this substation.

[0123] The above steps 502 and 503 are Figure 2 Step 201 and step 202 are the same and will not be repeated here.

[0124] Accordingly, the embodiment of the present application also provides a cross-area power outage reporting system, which includes: multiple areas, each area includes: a concentrator, a master node and one or more slave nodes; the master node is set on the concentrator.

[0125] The master node is used to complete the networking after power-on initialization is completed;

[0126] The slave node is used to filter and analyze the received carrier signal of the adjacent substation, obtain the node mapping information of the adjacent substation, and report the mapping information to the main node of this substation; the node mapping information refers to the correspondence between the node identifier and the MAC address of the electric meter; monitor the power outage event report message of the adjacent substation, and after monitoring the power outage event report message of the adjacent substation, report the power outage event report message of the adjacent substation to the main node of this substation, so that the main node of this substation reports to the main station of the power grid through the concentrator of this substation.

[0127] like Figure 6 The figure shows a message interaction diagram in the cross-station power outage reporting system provided in an embodiment of the present application.

[0128] Figure 6 The slave node, master node and concentrator shown in are node devices in a substation. In a substation, multiple slave nodes can be included. The slave node can be a module set in the meter or an independent collector. One collector can collect information from multiple meters.

[0129] In step 61, the master node is powered on and initialized to complete networking.

[0130] In step 62, the master node sends a neighbor network information query message to the slave node through periodic broadcasting.

[0131] In step 63, the slave node receives the carrier signal of the adjacent station area and obtains the mapping information of the nodes in the adjacent station area.

[0132] In step 64, the slave node reports the acquired adjacent area node mapping information to the master node.

[0133] In step 65, the master node aggregates the adjacent area node mapping information reported by the slave nodes in the local area, and generates and stores the adjacent area node mapping information table.

[0134] In step 66, the slave node monitors the adjacent substation power outage event report message.

[0135] In step 67, the slave node reports the monitored adjacent power outage event report message to the master node.

[0136] In step 68, the master node analyzes and summarizes the power outage event report messages of adjacent substations reported by the slave nodes in the substation.

[0137] It should be noted that, in this step, the master node can convert the bitmap information in the adjacent substation power outage event report message into the MAC address corresponding to each TEI according to the stored adjacent substation node mapping information table.

[0138] In step 69, the master node reports the aggregated power outage events of the adjacent substations to the concentrator via the local communication interface, so that the concentrator reports it to the power grid master station.

[0139] The concentrator and the power grid master station can communicate via 4G or 5G wireless network or fiber optic Ethernet, for example.

[0140] In some embodiments, the master node is also used to trigger and start the cross-station power outage reporting function of the slave node in the station area based on the concentrator in the station area to meet the different needs of different application scenarios. The specific triggering method can be found in the description of the cross-station power outage reporting method embodiment of the present application, which will not be repeated here.

[0141] Correspondingly, an embodiment of the present application further provides a terminal device, which can be used as a slave node of each substation in a power line carrier meter reading system and is arranged on an electric meter.

[0142] like Figure 7 The figure shows a schematic diagram of the structure of the terminal device.

[0143] The terminal device 700 includes: a receiving module 701, a message analyzing module 702, a reporting module 703, and a power outage event monitoring module 704. Among them:

[0144] The receiving module 701 is used to receive the carrier signal of the adjacent station area;

[0145] The message analysis module 702 is used to filter and analyze the carrier signal to obtain the adjacent station node mapping information;

[0146] The reporting module 703 is used to report the mapping information to the master node of the station area; the node mapping information refers to the correspondence between the node identifier and the MAC address of the meter;

[0147] The power outage event monitoring module 704 is used to monitor the power outage event reporting messages of adjacent substations;

[0148] The reporting module 703 is also used to report the adjacent power outage event reporting message to the main node of the current substation after the power outage event monitoring module detects the adjacent power outage event reporting message, so that the main node of the current substation reports it to the power grid master station through the concentrator of the current substation.

[0149] In some embodiments, the receiving module 701 is further used to receive a neighbor network information query message sent by the master node of the station area through periodic broadcasting. Accordingly, after the receiving module 701 receives the neighbor network information query message, the reporting module 703 reports the mapping information to the master node of the station area.

[0150] In some embodiments, the receiving module 701 is further used to receive a message for starting a cross-station power outage reporting function sent by a master node of the original zone, and start a cross-station power outage reporting function.

[0151] Accordingly, the embodiment of the present application also provides a network device for use in a power line carrier meter reading system, such as Figure 8 The figure shows a structural diagram of the network device.

[0152] The network device 800 includes a concentrator 801 and a central coordinator 802. Among them:

[0153] The central coordinator 802 is used to receive the power outage event report messages of the adjacent substations reported by the terminal devices in the substation area, analyze and summarize the messages, and report the summarized power outage events of the adjacent substations to the concentrator;

[0154] The concentrator 801 is used to report the power outage event in the adjacent substation to the power grid master station.

[0155] In some embodiments, the central coordinator 802 is also used to send neighbor network information query messages to the slave nodes in this area through periodic broadcasting, and receive adjacent area node mapping information reported by each terminal device in this area; the node mapping information refers to the correspondence between the node identifier and the meter MAC address.

[0156] In some embodiments, the central coordinator 802 is also used to perform networking, and after the networking is completed, report a networking completion message to the concentrator 801;

[0157] Accordingly, the concentrator 801 is also used to send a cross-station power outage reporting command to the central coordinator 802 after receiving the networking completion message;

[0158] Correspondingly, after receiving the start cross-station power outage reporting command, the central coordinator 802 is also used to send a start cross-station power outage reporting message to the slave node in the station area through broadcasting, so that the slave node in the station area starts the cross-station power outage reporting function.

[0159] For more information about the above-mentioned terminal device 700 and network device 800, please refer to the description in the previous embodiment of the cross-station power outage reporting method of this application, which will not be repeated here.

[0160] In a specific implementation, each module / unit included in each device or product described in the above embodiments may be a software module / unit or a hardware module / unit, or may be partly a software module / unit and partly a hardware module / unit.

[0161] For example, for each device or product applied to or integrated in a chip, each module / unit contained therein may be implemented in the form of hardware such as circuits, or at least some of the modules / units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules / units may be implemented in the form of hardware such as circuits; for each device or product applied to or integrated in a chip module, each module / unit contained therein may be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least some of the modules / units may be implemented in the form of software programs. The element can be implemented in the form of a software program, which runs on a processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the various modules / units contained therein can be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on a processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.

[0162] The embodiment of the present application also discloses a storage medium, which is a computer-readable storage medium, on which a computer program is stored, and when the computer program is run, the steps of the method shown in the above embodiment can be executed. The storage medium may include a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc. The storage medium may also include a non-volatile memory (non-volatile) or a non-transitory memory, etc.

[0163] The embodiment of the present application further provides a computer program product, including a memory and a processor, wherein the memory stores a computer program that can be run on the processor, and the processor executes the above-mentioned Figure 2 or Figure 3 or Figure 4 Steps in the embodiment.

[0164] It should be understood that the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article indicates that the associated objects before and after are in an "or" relationship.

[0165] The "plurality" appearing in the embodiments of the present application refers to two or more.

[0166] The various embodiments provided in this application can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server or a data center to another website site, a computer, a server or a data center by wired or wireless means. It should be understood that in various embodiments of the present application, the size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application.

[0167] In the several embodiments provided in the present application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device embodiments described above are merely schematic; for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0168] Each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may be physically arranged separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0169] Although the present application is disclosed as above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the scope defined by the claims.

Claims

1. A method for reporting cross-station power outages, characterized in that: The method comprises: The slave node of this area filters and analyzes the carrier signal received from the adjacent area, obtains the node mapping information of the adjacent area, and reports the mapping information to the master node of this area; the node mapping information refers to the correspondence between the node identifier and the MAC address of the meter; The slave node of this substation monitors the power outage event report message of the adjacent substation, and after monitoring the power outage event report message of the adjacent substation, reports the power outage event report message of the adjacent substation to the main node of this substation, so that the main node of this substation reports it to the power grid main station through the concentrator of this substation.

2. The method according to claim 1, characterized in that The method further comprises: After the network is established, the master node of this area triggers and starts the cross-area power outage reporting function of the slave node in this area based on the concentrator of this area.

3. The method according to claim 2, characterized in that The master node of the local area triggers the start of the cross-area power outage reporting function of the slave node of the local area based on the concentrator of the local area, including: The master node of this area reports the networking completion message to the concentrator of this area; Receive the cross-area power outage reporting command issued by the local area concentrator; The message for starting the cross-station area power outage reporting is sent to the slave node of this station area through broadcasting, so that the slave node of this station area starts the cross-station area power outage reporting function.

4. The method according to claim 3, characterized in that The method further comprises: After the power-on initialization of the main node in this area is completed, the file is synchronized with the concentrator in this area to start the networking process.

5. The method according to claim 1, characterized in that The local area slave node filters and analyzes the carrier signal received from the adjacent area to obtain the adjacent area node mapping information, including: The local slave node filters and analyzes the carrier signal received from the adjacent station area to obtain the beacon and corresponding application layer message of the adjacent station area; The mapping relationship between the adjacent substation node identifier and the meter MAC address is obtained according to the application layer message.

6. The method according to claim 1, characterized in that The method further comprises: The master node in this area sends neighbor network information query messages to the slave nodes in this area through periodic broadcasting; The slave node in the station area reports the mapping information to the master node in the station area, including: After receiving the neighbor network information query message broadcast by the master node of the local area, the slave node of the local area reports the acquired adjacent area node mapping information to the master node of the local area.

7. The method according to claim 6, characterized in that The method further comprises: The master node of the station area aggregates the adjacent station area node mapping information reported by the slave nodes of the station area, and generates and stores the adjacent station area node mapping information table.

8. The method according to claim 7, characterized in that The power outage event reporting message is a power outage event reporting message based on the MAC address of the electric meter; Or it is a power outage event report message based on the node bitmap information of the adjacent substation area; The method further comprises: The master node of this area converts the node bitmap information in the power outage event reporting message based on the node bitmap information of the adjacent area into the MAC address of the electricity meter according to the stored adjacent area node mapping information table.

9. The method according to claim 1, characterized in that: The method further comprises: The master node of this area analyzes and summarizes the power outage event report messages of adjacent areas reported by the slave nodes of this area, and reports the summarized power outage events of adjacent areas to the concentrator of this area; The concentrator in this area reports the power outage event in the adjacent area to the power grid master station.

10. The method according to any one of claims 1 to 9, characterized in that: The HPLC link layer protocol is used for communication between the master node and the slave nodes in this area, and between the slave nodes.

11. A cross-station power outage reporting system, characterized in that: The system comprises: a plurality of stations, each station comprising: a concentrator, a master node and one or more slave nodes; the master node is arranged on the concentrator; The master node is used to complete the networking after power-on initialization is completed; The slave node is used to filter and analyze the received carrier signal of the adjacent substation, obtain the node mapping information of the adjacent substation, and report the mapping information to the main node of this substation; the node mapping information refers to the correspondence between the node identifier and the MAC address of the electric meter; monitor the power outage event report message of the adjacent substation, and after monitoring the power outage event report message of the adjacent substation, report the power outage event report message of the adjacent substation to the main node of this substation, so that the main node of this substation reports to the main station of the power grid through the concentrator of this substation.

12. A terminal device, characterized in that: The terminal device comprises: A receiving module, used for receiving carrier signals from adjacent stations; A message analysis module, used to filter and analyze the carrier signal to obtain adjacent station area node mapping information; A reporting module, used to report the mapping information to the master node of the station area; the node mapping information refers to the correspondence between the node identifier and the MAC address of the meter; Power outage event monitoring module, used to monitor the power outage event reporting messages of adjacent substations; The reporting module is also used to report the adjacent power outage event reporting message to the main node of this substation after the power outage event monitoring module detects the adjacent power outage event reporting message, so that the main node of this substation reports it to the power grid main station through the concentrator of this substation.

13. The terminal device according to claim 12, characterized in that: The receiving module is also used to receive neighbor network information query messages sent by the master node of the station area through periodic broadcasting; The reporting module reports the mapping information to the master node of the local area after the receiving module receives the neighbor network information query message.

14. The terminal device according to claim 12 or 13, characterized in that: The receiving module is also used to receive a message for starting a cross-station area power outage reporting sent by the master node of the original area, and start a cross-station area power outage reporting function.

15. A network device used in a power line carrier meter reading system, characterized in that: The network equipment includes a concentrator and a central coordinator; The central coordinator is used to receive the adjacent power outage event report messages reported by each terminal device in the local area, analyze and summarize the messages, and report the summarized adjacent power outage events to the concentrator; The concentrator is used to report the power outage event in the adjacent substation to the power grid master station.

16. The network device according to claim 15, characterized in that: The central coordinator is also used to send neighbor network information query messages to the slave nodes in this area through periodic broadcasting, and receive adjacent area node mapping information reported by each terminal device in this area; the node mapping information refers to the correspondence between the node identifier and the meter MAC address.

17. The network device according to claim 15 or 16, characterized in that: The central coordinator is further used to perform networking, and after the networking is completed, report a networking completion message to the concentrator; The concentrator is further configured to send a cross-station power outage reporting start command to the central coordinator after receiving the networking completion message; The central coordinator is also used to send a message for starting cross-station power outage reporting to the slave node in the station area through broadcasting after receiving the command for starting cross-station power outage reporting, so that the slave node in the station area starts the cross-station power outage reporting function.

18. A computer-readable storage medium, wherein the computer-readable storage medium is a non-volatile storage medium or a non-transient storage medium, and a computer program is stored thereon, wherein: When the computer program is executed by a processor, the steps of the method for reporting cross-station power outages according to any one of claims 1 to 10 are executed.

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