Electric power real-time data abnormity monitoring system and method

Abstract

The invention provides a power real-time data abnormity monitoring system and method.The system comprises a plurality of mirror image data obtaining windows arranged on a first master station switch, each mirror image data obtaining window is electrically connected with an independent mirror image data receiving and transmitting module, and all the mirror image data receiving and transmitting modules are electrically connected with a data monitoring module; the mirror image data receiving and transmitting module is electrically connected with the second master station switch, the mirror image data obtaining window obtains real-time data flow of the first master station switch, the real-time data flow is transmitted to the data monitoring module through the mirror image data receiving and transmitting module, and abnormal data of the real-time data flow is screened through the data monitoring module according to a preset data monitoring protocol. The real-time data stream after abnormal data removal is transmitted to a second master station switch through a mirror image data receiving and transmitting module; according to the method, the workload of real-time data sharing of the power system network is reduced, abnormal data can be removed, and the security of data transmission is ensured.

Description

Technical Field

[0001] The present invention relates to the field of electric power technology, and in particular to a system and method for monitoring abnormal real-time electric power data. Background Art

[0002] The power monitoring system is a system that monitors the operating status and operating data of substations and power plants in real time, hereinafter referred to as the master station. With the development of information technology, the transmission of real-time power data generally adopts real-time data network communication based on question-and-answer mode.

[0003] At present, when two or more master stations share a substation information, the two main methods used are opening a new channel and master station forwarding.

[0004] The first method is to open a new channel. This method requires the manufacturer to open a new network port for the substation automation equipment and reconfigure the database. For the power system, the newly configured equipment needs to be re-debugged and verified, and can only be used after passing the safety test. The workload is large, the cycle is long, and the safety is low. And it is difficult to have the opportunity to verify the equipment without power outage.

[0005] The second method is master station forwarding. This method uses the forwarding function of the original master station to forward data to other master stations. This requires the original master station to establish a forwarding database, and other master stations to prepare corresponding receiving databases. The more forwarding, the greater the burden on the original master station, the more maintenance work, and also affects the independent operation of the original master station and other master stations.

[0006] The power system network transmits data through the TCP / IP protocol, and it is very difficult to share real-time power data by opening a new channel or forwarding from the master station. It is necessary to create a forwarding database table. The more forwarding, the greater the workload. Abnormal data or sensitive data generated during the data transmission process will also be forwarded synchronously, and data forwarding delays cannot be avoided. If mirror forwarding is used for real-time data sharing, data can generally only be transmitted through the UDP protocol, which is difficult to match the requirements of TCP / IP protocol transmission.

[0007] With respect to the above-mentioned related technologies, the applicant believes that the existing real-time data sharing methods of power system networks have the defects of heavy workload, complicated operation and inability to remove abnormal data. Summary of the invention

[0008] The present invention solves the problem that the workload of real-time data sharing in the power system network is large and abnormal data cannot be removed, and proposes a power real-time data abnormality monitoring system and method, which reduces the workload of real-time data sharing in the power system network and can remove abnormal data to ensure the security of data transmission.

[0009] In order to achieve the above objectives, the following technical solutions are proposed: A power real-time data abnormality monitoring system includes a plurality of mirror data acquisition windows arranged on a first master station switch, each of the mirror data acquisition windows is electrically connected to an independent mirror data transceiver module, all the mirror data transceiver modules are electrically connected to a data monitoring module, the mirror data transceiver module is electrically connected to a second master station switch, the mirror data acquisition window acquires the real-time data stream of the first master station switch and transmits it to the data monitoring module through the mirror data transceiver module, the data monitoring module screens the abnormal data of the real-time data stream according to a preset data monitoring protocol, and the real-time data stream after the abnormal data is removed is transmitted to the second master station switch by the mirror data transceiver module.

[0010] The present invention includes a first main station switch, a plurality of mirror data acquisition windows, a mirror data transceiver module, a data monitoring module, and a second main station switch. The plurality of mirror data acquisition windows are arranged on the first main station switch, and are used to acquire the real-time data stream of the first main station switch. The mirror data transceiver module is electrically connected to the mirror data acquisition window and the data monitoring module respectively. The output end of the mirror data transceiver module is electrically connected to the second main station switch. The mirror data transceiver module transmits the real-time data stream obtained by the mirror data acquisition window from the first main station switch to the data monitoring module. The data monitoring module is preset by a data monitoring protocol and screens the abnormal data of the real-time data stream according to the protocol to obtain the real-time data stream after the abnormal data is removed. The mirror data transceiver module then sends the real-time data stream after the abnormal data is removed to the second main station switch.

[0011] A mirror data acquisition window is set on the first master station, so that the real-time data streams of all substations received by the first master station are output through the mirror data acquisition window, and the real-time data streams of the substations are collected; the first network card unit is configured so that the first network card unit receives and forwards the data stream output by the mirror data acquisition window, realizes data communication with the first master station, and obtains the data stream information of the substation; the second network card unit is configured so that the second network card unit communicates with the first network card unit, obtains all data streams output by the mirror data acquisition window, and the data stream information of the mirror substation is obtained, and then the second network card unit automatically clones the network card information of the substation, and the mirror virtual network card and the second master station establish a secure Reliable data connection, and make the mirrored virtual network card communicate with the second main station, adjust the data transmission question and answer rhythm between the virtual network card and the second main station, until the virtual network card can smoothly send the cached real-time data to the second main station, so that the second main station thinks that it is communicating data with the real substation; then the power system network real-time data sharing method can quickly clone the substation data message information through the mirroring method, and let the second main station receive the substation data that is completely identical and synchronized with the substation data received by the first main station, so as to reduce the workload of the power system network real-time data sharing, make the operation more convenient, and will not affect the independent operation of the first and second main stations. In addition, the mirrored data transceiver module is connected to a data monitoring module, which filters out abnormal data in the real-time data stream to ensure the security of data transmission.

[0012] Preferably, the mirror data transceiver module includes a sub-control unit electrically connected to the data monitoring module, the sub-control unit electrically connected to a first network card unit for receiving the real-time data stream of the mirror data acquisition window and a second network card unit for sending the real-time data stream after removing abnormal data to the second master station switch.

[0013] The mirror data transceiver module of the present invention comprises a first network card unit, a sub-control unit and a second network card unit, wherein the input end of the first network card unit is connected to the mirror data acquisition window, the output end of the first network card unit is connected to the sub-control unit, the sub-control unit is connected to the input end of the second network card unit, and the output end of the second network card unit is connected to the second master station switch. The sub-control unit is electrically connected to the data monitoring module, the first network card unit receives the real-time data stream of the mirror data acquisition window and transmits it to the sub-control unit, the sub-control unit sends the real-time data stream obtained by the data monitoring module after removing abnormal data to the second network card unit, and the second network card unit sends the real-time data stream after removing abnormal data to the second master station switch.

[0014] Preferably, the second network card unit virtualizes the network card information of the first master station switch as a mirror virtual network card to perform a handshake connection with the second master station switch.

[0015] The second network card unit of the present invention automatically clones the network card information of the substation, and virtualizes the MAC address, IP address and port number of the substation that communicates with the first master station on the second network card unit to mirror the data communication between the substation and the first master station, so that the second network card unit can simulate the substation and the second master station to successfully achieve a handshake connection.

[0016] Preferably, the data monitoring module includes a main control unit, the main control unit is electrically connected to a data transmission unit that communicates with the mirror data transceiver module, the main control unit is electrically connected to a data monitoring unit and a data screening unit, the output end of the data transmission unit is connected to the input end of the data monitoring unit, the output end of the data monitoring unit is connected to the input end of the data screening unit, and the output end of the data screening unit is connected to the input end of the data transmission unit.

[0017] The data monitoring module of the present invention comprises a main control unit, a data transmission unit, a data monitoring unit and a data screening unit. The data transmission unit communicates with the mirror data transceiver module and is connected to the sub-control unit of the mirror data transceiver module. The data monitoring unit and the data screening unit are respectively electrically connected to the main control unit and are controlled and called by the main control unit. The input end of the data monitoring unit is connected to the output end of the data transmission unit, the input end of the data screening unit is connected to the output end of the data monitoring unit, and the input end of the data transmission unit is connected to the output end of the data screening unit.

[0018] Preferably, the main control unit is electrically connected to a data storage unit, which stores the complete real-time data stream and the filtered real-time data stream, and records the work logs of the data monitoring unit and the data filtering unit.

[0019] The main control unit of the present invention is electrically connected to a data storage unit for storing the complete real-time data stream and the filtered real-time data stream, and the data storage unit is also used to store the work logs of the data filtering unit and the data monitoring unit.

[0020] Preferably, the main control unit is electrically connected to an abnormal alarm unit, and the abnormal alarm unit issues an abnormal alarm to an administrator when the data monitoring unit detects abnormal data, and stores the alarm information in the data storage unit.

[0021] The main control unit of the present invention is electrically connected to an abnormal alarm unit for alarming an administrator. When the data monitoring unit detects abnormal data, the abnormal alarm unit generates alarm information to the administrator, and the main control unit stores the alarm information in the data storage unit.

[0022] A method for monitoring abnormal power real-time data, using the above-mentioned abnormal power real-time data monitoring system, comprises the following steps: S1, a plurality of mirror data acquisition windows acquire real-time data streams from the first master station switch, and the mirror data transceiver module sends the real-time data streams to the data monitoring module; S2, the data monitoring unit of the data monitoring module identifies the real-time data stream according to the preset data monitoring protocol, and determines whether there is abnormal data. If so, the data screening unit screens out the abnormal data to obtain the real-time data stream after removing the abnormal data, and then proceeds to S3. If not, proceed to S3; S3, the data screening unit transmits the real-time data stream to the mirror data transceiver module, and the mirror data transceiver module transmits the real-time data stream to the second master station switch in a mirrored manner.

[0023] The method of the present invention specifically comprises the following steps: S1, several mirror data acquisition windows send the real-time data stream acquired from the first master station switch to the mirror data transceiver module, and the mirror data transceiver module receives and forwards the real-time data stream to the data monitoring module; S2, after receiving the real-time data stream, the data monitoring module identifies abnormal data on the real-time data stream according to the preset data monitoring protocol to determine whether there is abnormal data. If so, the data screening unit of the data monitoring module will screen out the abnormal data, and finally obtain the real-time data stream after removing the abnormal data, and then proceed to S3. If not, proceed to S3; S3, the data screening unit of the data monitoring module transmits the screened or unscreened real-time data stream to the mirror data transceiver module, and the mirror data transceiver module receives and mirror-forwards the real-time data stream to the second master station switch.

[0024] Preferably, the S1 specifically comprises the following steps: The first network card unit of the mirror data transceiver module receives the real-time data stream obtained by the mirror data acquisition window from the first master station switch, and the first network card unit transmits the real-time data stream to the sub-control unit, and the sub-control unit forwards the real-time data stream to the data transmission unit of the data monitoring module.

[0025] S1 of the present invention includes the following steps: the mirror data acquisition window acquires the real-time data stream from the first master station switch and then forwards it to the first network card unit of the mirror data transceiver module. The first network card unit receives the real-time data stream of the mirror data acquisition window, and forwards the real-time data stream to the sub-control unit, and the sub-control unit then transmits the real-time data stream to the data transmission unit of the data monitoring module.

[0026] Preferably, the S3 specifically comprises the following steps: The data screening unit transmits the real-time data stream after removing abnormal data to the sub-control unit of the mirror data transceiver module through the data transmission unit. The sub-control unit sends the real-time data stream after removing abnormal data to the second network card unit. The second network card unit virtualizes the network card information of the first main station switch as a mirror virtual network card, and sends the real-time data stream after removing abnormal data to the second main station switch through the mirror virtual network card.

[0027] S3 of the present invention includes the following steps: the data screening unit outputs the real-time data stream after removing abnormal data to the data transmission unit, the data transmission unit transmits the real-time data stream after removing abnormal data to the sub-control unit of the mirror data transceiver module, the sub-control unit outputs the real-time data stream after removing abnormal data to the second network card unit, the second network card unit virtualizes the network card information of the first main station switch as a mirror virtual network card, and outputs the real-time data stream after removing abnormal data to the second main station switch through the mirror virtual network card.

[0028] Preferably, the mirror virtual network card generation process is as follows: The second network card unit automatically clones the network card information of the first master station switch, virtualizes the MAC address, IP address and port number that are completely identical to those of the substation communicating with the first master station, and obtains a mirrored virtual network card.

[0029] On the second network card unit, a MAC address, IP address and port number that are exactly the same as those of the substation in the data stream received by the first master station are virtualized to mirror the data communication between the first master station and the second master station, so that the second network card unit can simulate the substation and the second master station to successfully achieve a handshake connection. The second network card unit automatically clones the virtual network cards of all substations or designated substations and performs aging management based on the substation network card information registered by the sub-control unit, and at the same time enables the ARP protocol, ICMP protocol, UDP protocol, and TCP protocol of the virtual network card for data communication. The sub-control unit can also be used to modify the MAC address, IP address, and port number of the registered network card information to meet the communication requirements of the virtual network card and the second master station. The sub-control unit also analyzes the cached real-time data and adjusts the response rhythm of the virtual network card and the second master station until the real-time data of all substations or designated substations are successfully forwarded to the second master station.

[0030] The beneficial effects of the present invention are: 1. The real-time data sharing method of the power system network can quickly clone all the data message information of the substation received by the first master station through the mirroring method, and let the second master station receive the data message information of the substation that is exactly the same as that received by the first master station, so as to reduce the workload of the real-time data sharing of the power system network, make the operation more convenient, and will not affect the independent operation of the first master station and the second master station; 2. By grouping the real-time data stream of the substation received by the first master station and setting the mirror data acquisition window, the first network card unit, the sub-control unit and the second network card unit according to the group, the data forwarding capability of the power grid real-time data sharing method is further improved to meet the needs of more substations for data forwarding; at the same time, by limiting the data forwarding amount between each sub-control unit, the data communication between the first master station, the second master station and the substation can be synchronized to better meet the real-time requirements of data communication; 3. The virtual network card of the second network card unit communicates with the second main station and adjusts the data transmission question and answer rhythm between the virtual network card and the second main station to simulate data communication between the real substation and the second main station, and realizes stable and synchronous real-time data communication between the first main station, the second main station and the substation; 4. The data monitoring module filters out abnormal data to reduce the amount of data forwarding, while improving the speed and security of data forwarding. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a system structure connection diagram of the present invention.

[0032] Figure 2 It is a structural connection diagram of the data monitoring module of the present invention.

[0033] Figure 3 It is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0034] Embodiment 1: This embodiment proposes a real-time power data abnormality monitoring system. Figure 1 , including a first main station switch, a plurality of mirror data acquisition windows, a mirror data transceiver module, a data monitoring module, and a second main station switch. The plurality of mirror data acquisition windows are arranged on the first main station switch, and are used to acquire the real-time data stream of the first main station switch. The mirror data transceiver module is electrically connected to the mirror data acquisition window and the data monitoring module respectively. The output end of the mirror data transceiver module is electrically connected to the second main station switch. The mirror data transceiver module transmits the real-time data stream obtained by the mirror data acquisition window from the first main station switch to the data monitoring module. The data monitoring module is preset by a data monitoring protocol and screens the abnormal data of the real-time data stream according to the protocol to obtain the real-time data stream after the abnormal data is removed. The mirror data transceiver module then sends the real-time data stream after the abnormal data is removed to the second main station switch.

[0035] A mirror data acquisition window is set on the first master station, so that the real-time data streams of all substations received by the first master station are output through the mirror data acquisition window, and the real-time data streams of the substations are collected; the first network card unit is configured so that the first network card unit receives and forwards the data stream output by the mirror data acquisition window, realizes data communication with the first master station, and obtains the data stream information of the substation; the second network card unit is configured so that the second network card unit communicates with the first network card unit, obtains all data streams output by the mirror data acquisition window, and the data stream information of the mirror substation is obtained, and then the second network card unit automatically clones the network card information of the substation, and the mirror virtual network card and the second master station establish a secure Reliable data connection, and make the mirrored virtual network card communicate with the second main station, adjust the data transmission question and answer rhythm between the virtual network card and the second main station, until the virtual network card can smoothly send the cached real-time data to the second main station, so that the second main station thinks that it is communicating data with the real substation; then the power system network real-time data sharing method can quickly clone the substation data message information through the mirroring method, and let the second main station receive the substation data that is completely identical and synchronized with the substation data received by the first main station, so as to reduce the workload of the power system network real-time data sharing, make the operation more convenient, and will not affect the independent operation of the first and second main stations. In addition, the mirrored data transceiver module is connected to a data monitoring module, which filters out abnormal data in the real-time data stream to ensure the security of data transmission.

[0036] The mirror data transceiver module of the present invention comprises a first network card unit, a sub-control unit and a second network card unit, wherein the input end of the first network card unit is connected to the mirror data acquisition window, the output end of the first network card unit is connected to the sub-control unit, the sub-control unit is connected to the input end of the second network card unit, and the output end of the second network card unit is connected to the second master station switch. The sub-control unit is electrically connected to the data monitoring module, the first network card unit receives the real-time data stream of the mirror data acquisition window and transmits it to the sub-control unit, the sub-control unit sends the real-time data stream obtained by the data monitoring module after removing abnormal data to the second network card unit, and the second network card unit sends the real-time data stream after removing abnormal data to the second master station switch.

[0037] The second network card unit of the present invention automatically clones the network card information of the substation, and virtualizes the MAC address, IP address and port number of the substation that communicates with the first master station on the second network card unit to mirror the data communication between the substation and the first master station, so that the second network card unit can simulate the substation and the second master station to successfully achieve a handshake connection.

[0038] The second network card unit automatically clones the network card information of the substation based on the data flow information, and the mirrored virtual network card realizes a handshake connection with the second master station. Specifically, the step of the second network card unit automatically cloning the network card information of the substation includes virtualizing a new MAC address, IP address and port number that meet the requirements of the second master station on the second network card unit, or virtualizing the same MAC address, IP address and port number as the substation communicating on the first master station on the second network card unit, and establishing a forwarding table based on the MAC address, IP address and port number.

[0039] When the second network card unit receives the handshake request from the second main station, it first determines from the forwarding table whether there is an IP address associated with the data flow of the second main station. When there is an IP address associated with the data flow of the second main station in the forwarding table, a new MAC address, IP address and new port number that meet the requirements of the second main station are selected from the forwarding table and data forwarding is performed according to the TCP / IP protocol, or the MAC address, IP address and port number that are the same as those of the substation on the first main station are selected from the forwarding table and data forwarding is performed according to the TCP / IP protocol, so that the virtual network card of the second network card unit can establish a TCP / IP connection with the second main station.

[0040] Of course, the virtual network card can also modify the MAC address, IP address, and port number through manual configuration as needed. The virtual network card has ARP protocol, ICMP protocol, UDP protocol, and TCP protocol.

[0041] The present invention overcomes the compatibility problem of the real-time data sharing method based on TCP / IP protocol for mirror forwarding, so that the real-time data sharing method of the power system network can quickly clone the data message information of the substation through the mirroring method, and make the second master station receive the substation data that is exactly the same as that received by the first master station, which will affect the independent operation of the first master station and the second master station.

[0042] At the same time, when forwarding the data request of the corresponding data message or status message to the second master station, first determine the information sequence number corresponding to the data query command or status query command sent by the second master station. When the information sequence number exists in the forwarding table, forward the corresponding data message or status message to the second master station; when the information sequence number does not exist in the forwarding table, discard the received data query command or status query command, and continue to listen for whether there is a data query command or status query command sent by the second master station.

[0043] This embodiment also proposes a method for monitoring abnormal power real-time data. Figure 3 , specifically including the following steps: S1, a plurality of mirror data acquisition windows send the real-time data stream obtained from the first master station switch to the mirror data transceiver module, and the mirror data transceiver module receives and forwards the real-time data stream to the data monitoring module; S1 specifically includes the following steps: the mirror data acquisition window obtains the real-time data stream from the first master station switch and then forwards it to the first network card unit of the mirror data transceiver module. The first network card unit receives the real-time data stream of the mirror data acquisition window, and forwards the real-time data stream to the sub-control unit, and the sub-control unit then transmits the real-time data stream to the data transmission unit of the data monitoring module.

[0044] S2, after receiving the real-time data stream, the data monitoring module identifies abnormal data on the real-time data stream according to the preset data monitoring protocol to determine whether there is abnormal data. If so, the data screening unit of the data monitoring module will screen out the abnormal data, and finally obtain the real-time data stream after removing the abnormal data, and then proceed to S3. If not, proceed to S3; S3, the data screening unit of the data monitoring module will transmit the real-time data stream that has been screened or not to the mirror data transceiver module, and the mirror data transceiver module receives and mirrors the real-time data stream to the second main station switch. S3 specifically includes the following steps: the data screening unit outputs the real-time data stream after removing abnormal data to the data transmission unit, the data transmission unit transmits the real-time data stream after removing abnormal data to the sub-control unit of the mirror data transceiver module, the sub-control unit outputs the real-time data stream after removing abnormal data to the second network card unit, the second network card unit virtualizes the network card information of the first main station switch as a mirror virtual network card, and outputs the real-time data stream after removing abnormal data to the second main station switch through the mirror virtual network card. The second network card unit virtualizes the MAC address, IP address and port number of the substation that are exactly the same as those in the data stream received by the first main station, so as to mirror the data communication between the first main station and the second main station, so that the second network card unit can simulate the substation and the second main station to successfully achieve a handshake connection. The second network card unit automatically clones the virtual network cards of all substations or designated substations and performs aging management based on the substation network card information registered by the sub-control unit, and enables the ARP protocol, ICMP protocol, UDP protocol, and TCP protocol of the virtual network card for data communication. The sub-control unit can also modify the MAC address, IP address, and port number of the registered network card information to meet the communication requirements of the virtual network card and the second master station. The sub-control unit also analyzes the cached real-time data and adjusts the response rhythm of the virtual network card and the second master station until the real-time data of all substations or designated substations is successfully forwarded to the second master station.

[0045] Embodiment 2: This embodiment improves the structure of the data monitoring module on the basis of embodiment 1, and proposes a real-time power data abnormality monitoring system. Figure 1, including a first main station switch, a plurality of mirror data acquisition windows, a mirror data transceiver module, a data monitoring module, and a second main station switch. The plurality of mirror data acquisition windows are arranged on the first main station switch, and are used to acquire the real-time data stream of the first main station switch. The mirror data transceiver module is electrically connected to the mirror data acquisition window and the data monitoring module respectively. The output end of the mirror data transceiver module is electrically connected to the second main station switch. The mirror data transceiver module transmits the real-time data stream obtained by the mirror data acquisition window from the first main station switch to the data monitoring module. The data monitoring module is preset by a data monitoring protocol and screens the abnormal data of the real-time data stream according to the protocol to obtain the real-time data stream after the abnormal data is removed. The mirror data transceiver module then sends the real-time data stream after the abnormal data is removed to the second main station switch.

[0046] A mirror data acquisition window is set on the first master station, so that the real-time data streams of all substations received by the first master station are output through the mirror data acquisition window, and the real-time data streams of the substations are collected; the first network card unit is configured so that the first network card unit receives and forwards the data stream output by the mirror data acquisition window, realizes data communication with the first master station, and obtains the data stream information of the substation; the second network card unit is configured so that the second network card unit communicates with the first network card unit, obtains all data streams output by the mirror data acquisition window, and the data stream information of the mirror substation is obtained, and then the second network card unit automatically clones the network card information of the substation, and the mirror virtual network card and the second master station establish a secure Reliable data connection, and make the mirrored virtual network card communicate with the second main station, adjust the data transmission question and answer rhythm between the virtual network card and the second main station, until the virtual network card can smoothly send the cached real-time data to the second main station, so that the second main station thinks that it is communicating data with the real substation; then the power system network real-time data sharing method can quickly clone the substation data message information through the mirroring method, and let the second main station receive the substation data that is completely identical and synchronized with the substation data received by the first main station, so as to reduce the workload of the power system network real-time data sharing, make the operation more convenient, and will not affect the independent operation of the first and second main stations. In addition, the mirrored data transceiver module is connected to a data monitoring module, which filters out abnormal data in the real-time data stream to ensure the security of data transmission.

[0047] The mirror data transceiver module of the present invention comprises a first network card unit, a sub-control unit and a second network card unit, wherein the input end of the first network card unit is connected to the mirror data acquisition window, the output end of the first network card unit is connected to the sub-control unit, the sub-control unit is connected to the input end of the second network card unit, and the output end of the second network card unit is connected to the second master station switch. The sub-control unit is electrically connected to the data monitoring module, the first network card unit receives the real-time data stream of the mirror data acquisition window and transmits it to the sub-control unit, the sub-control unit sends the real-time data stream obtained by the data monitoring module after removing abnormal data to the second network card unit, and the second network card unit sends the real-time data stream after removing abnormal data to the second master station switch.

[0048] refer to Figure 2 The data monitoring module of the present invention includes a main control unit, a data transmission unit, a data monitoring unit and a data screening unit. The data transmission unit communicates with the mirror data transceiver module and is connected to the sub-control unit of the mirror data transceiver module. The data monitoring unit and the data screening unit are respectively electrically connected to the main control unit and are controlled and called by the main control unit. The input end of the data monitoring unit is connected to the output end of the data transmission unit, the input end of the data screening unit is connected to the output end of the data monitoring unit, and the input end of the data transmission unit is connected to the output end of the data screening unit.

[0049] The main control unit of the present invention is electrically connected to a data storage unit for storing the complete real-time data stream and the filtered real-time data stream, and the data storage unit is also used to store the work logs of the data filtering unit and the data monitoring unit.

[0050] The main control unit of the present invention is electrically connected to an abnormal alarm unit for alarming an administrator. When the data monitoring unit detects abnormal data, the abnormal alarm unit generates alarm information to the administrator, and the main control unit stores the alarm information in the data storage unit.

[0051] The second network card unit of the present invention automatically clones the network card information of the substation, and virtualizes the MAC address, IP address and port number of the substation that communicates with the first master station on the second network card unit to mirror the data communication between the substation and the first master station, so that the second network card unit can simulate the substation and the second master station to successfully achieve a handshake connection.

[0052] The second network card unit automatically clones the network card information of the substation based on the data flow information, and the mirrored virtual network card realizes a handshake connection with the second master station. Specifically, the step of the second network card unit automatically cloning the network card information of the substation includes virtualizing a new MAC address, IP address and port number that meet the requirements of the second master station on the second network card unit, or virtualizing the same MAC address, IP address and port number as the substation communicating on the first master station on the second network card unit, and establishing a forwarding table based on the MAC address, IP address and port number.

[0053] When the second network card unit receives the handshake request from the second main station, it first determines from the forwarding table whether there is an IP address associated with the data flow of the second main station. When there is an IP address associated with the data flow of the second main station in the forwarding table, a new MAC address, IP address and new port number that meet the requirements of the second main station are selected from the forwarding table and data forwarding is performed according to the TCP / IP protocol, or the MAC address, IP address and port number that are the same as those of the substation on the first main station are selected from the forwarding table and data forwarding is performed according to the TCP / IP protocol, so that the virtual network card of the second network card unit can establish a TCP / IP connection with the second main station.

[0054] Of course, the virtual network card can also modify the MAC address, IP address, and port number through manual configuration as needed. The virtual network card has ARP protocol, ICMP protocol, UDP protocol, and TCP protocol.

[0055] The present invention overcomes the compatibility problem of the real-time data sharing method based on TCP / IP protocol for mirror forwarding, so that the real-time data sharing method of the power system network can quickly clone the data message information of the substation through the mirroring method, and make the second master station receive the substation data that is exactly the same as that received by the first master station, which will affect the independent operation of the first master station and the second master station.

[0056] At the same time, when forwarding the data request of the corresponding data message or status message to the second master station, first determine the information sequence number corresponding to the data query command or status query command sent by the second master station. When the information sequence number exists in the forwarding table, forward the corresponding data message or status message to the second master station; when the information sequence number does not exist in the forwarding table, discard the received data query command or status query command, and continue to listen for whether there is a data query command or status query command sent by the second master station.

[0057] This embodiment also proposes a method for monitoring abnormal power real-time data. Figure 3 , specifically including the following steps: S1, a plurality of mirror data acquisition windows send the real-time data stream obtained from the first master station switch to the mirror data transceiver module, and the mirror data transceiver module receives and forwards the real-time data stream to the data monitoring module; S1 specifically includes the following steps: the mirror data acquisition window obtains the real-time data stream from the first master station switch and then forwards it to the first network card unit of the mirror data transceiver module. The first network card unit receives the real-time data stream of the mirror data acquisition window, and forwards the real-time data stream to the sub-control unit, and the sub-control unit then transmits the real-time data stream to the data transmission unit of the data monitoring module.

[0058] S2, after receiving the real-time data stream, the data monitoring module identifies abnormal data on the real-time data stream according to the preset data monitoring protocol to determine whether there is abnormal data. If so, the data screening unit of the data monitoring module will screen out the abnormal data, and finally obtain the real-time data stream after removing the abnormal data, and then proceed to S3. If not, proceed to S3; S3, the data screening unit of the data monitoring module will transmit the real-time data stream that has been screened or not to the mirror data transceiver module, and the mirror data transceiver module receives and mirrors the real-time data stream to the second main station switch. S3 specifically includes the following steps: the data screening unit outputs the real-time data stream after removing abnormal data to the data transmission unit, the data transmission unit transmits the real-time data stream after removing abnormal data to the sub-control unit of the mirror data transceiver module, the sub-control unit outputs the real-time data stream after removing abnormal data to the second network card unit, the second network card unit virtualizes the network card information of the first main station switch as a mirror virtual network card, and outputs the real-time data stream after removing abnormal data to the second main station switch through the mirror virtual network card. The second network card unit virtualizes the MAC address, IP address and port number of the substation that are exactly the same as those in the data stream received by the first main station, so as to mirror the data communication between the first main station and the second main station, so that the second network card unit can simulate the substation and the second main station to successfully achieve a handshake connection. The second network card unit automatically clones the virtual network cards of all substations or designated substations and performs aging management based on the substation network card information registered by the sub-control unit, and enables the ARP protocol, ICMP protocol, UDP protocol, and TCP protocol of the virtual network card for data communication. The sub-control unit can also modify the MAC address, IP address, and port number of the registered network card information to meet the communication requirements of the virtual network card and the second master station. The sub-control unit also analyzes the cached real-time data and adjusts the response rhythm of the virtual network card and the second master station until the real-time data of all substations or designated substations is successfully forwarded to the second master station.

Claims

1. A power real-time data abnormality monitoring system, characterized in that: The invention comprises a plurality of mirror data acquisition windows arranged on a first main station switch, each of the mirror data acquisition windows is electrically connected to an independent mirror data transceiver module, all the mirror data transceiver modules are electrically connected to a data monitoring module, the mirror data transceiver module is electrically connected to a second main station switch, the mirror data acquisition window acquires the real-time data stream of the first main station switch and transmits it to the data monitoring module through the mirror data transceiver module, the data monitoring module screens abnormal data of the real-time data stream according to a preset data monitoring protocol, and the real-time data stream after removing the abnormal data is transmitted to the second main station switch by the mirror data transceiver module.

2. The power real-time data abnormality monitoring system according to claim 1 is characterized in that: The mirror data transceiver module includes a sub-control unit electrically connected to the data monitoring module, the sub-control unit is electrically connected to a first network card unit that receives a real-time data stream of a mirror data acquisition window and a second network card unit that sends a real-time data stream after removing abnormal data to a second master station switch.

3. The power real-time data abnormality monitoring system according to claim 2 is characterized in that: The second network card unit virtualizes the network card information of the first master station switch as a mirror virtual network card to perform a handshake connection with the second master station switch.

4. A power real-time data abnormality monitoring system according to any one of claims 1 to 3, characterized in that: The data monitoring module includes a main control unit, the main control unit is electrically connected to a data transmission unit that communicates with the mirror data transceiver module, the main control unit is electrically connected to a data monitoring unit and a data screening unit, the output end of the data transmission unit is connected to the input end of the data monitoring unit, the output end of the data monitoring unit is connected to the input end of the data screening unit, and the output end of the data screening unit is connected to the input end of the data transmission unit.

5. The power real-time data abnormality monitoring system according to claim 4 is characterized in that: The main control unit is electrically connected to a data storage unit, which stores the complete real-time data stream and the filtered real-time data stream, and records the working logs of the data monitoring unit and the data filtering unit.

6. The power real-time data abnormality monitoring system according to claim 5 is characterized in that: The main control unit is electrically connected to an abnormal alarm unit, and the abnormal alarm unit issues an abnormal alarm to an administrator when the data monitoring unit detects abnormal data, and stores the alarm information in the data storage unit.

7. A method for monitoring abnormal power real-time data, using the system for monitoring abnormal power real-time data according to claim 4, characterized in that: The following steps are involved: S1, a plurality of mirror data acquisition windows acquire real-time data streams from the first master station switch, and the mirror data transceiver module sends the real-time data streams to the data monitoring module; S2, the data monitoring unit of the data monitoring module identifies the real-time data stream according to the preset data monitoring protocol, and determines whether there is abnormal data. If so, the data screening unit screens out the abnormal data to obtain the real-time data stream after removing the abnormal data, and then proceeds to S3. If not, proceed to S3; S3, the data screening unit transmits the real-time data stream to the mirror data transceiver module, and the mirror data transceiver module transmits the real-time data stream to the second master station switch in a mirrored manner.

8. The method for monitoring abnormal power real-time data according to claim 7 is characterized in that: The S1 specifically includes the following steps: The first network card unit of the mirror data transceiver module receives the real-time data stream obtained by the mirror data acquisition window from the first master station switch, and the first network card unit transmits the real-time data stream to the sub-control unit, and the sub-control unit forwards the real-time data stream to the data transmission unit of the data monitoring module.

9. The method for monitoring abnormal power real-time data according to claim 7, characterized in that: The S3 specifically includes the following steps: The data screening unit transmits the real-time data stream after removing abnormal data to the sub-control unit of the mirror data transceiver module through the data transmission unit. The sub-control unit sends the real-time data stream after removing abnormal data to the second network card unit. The second network card unit virtualizes the network card information of the first main station switch as a mirror virtual network card, and sends the real-time data stream after removing abnormal data to the second main station switch through the mirror virtual network card.

10. A method for monitoring abnormal power real-time data according to claim 9, characterized in that: The mirror virtual network card generation process is as follows: The second network card unit automatically clones the network card information of the first master station switch, virtualizes the MAC address, IP address and port number that are completely identical to those of the substation communicating with the first master station, and obtains a mirrored virtual network card.

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