Monitoring analysis system based on safety protection

Abstract

The invention discloses a monitoring analysis system based on safety protection. An operation method of the system comprises the following steps: performing design construction management of ZigBee network monitoring on a ring main unit; performing design control management on network monitoring of the ring main unit; monitoring, acquisition, analysis and control processing of the ring main unit is carried out; carrying out data information matching and transmission processing on the ring main unit; the design, construction and management of ZigBee network monitoring of the ring main unit comprises the steps that network node design is carried out on a ZigBee network monitored by the ring main unit, nodes comprise coordinators, routers and terminals, the network established by each coordinator corresponds to a unique network ID, the routers carry out relay processing of network data transmission, and the terminals carry out relay processing of the network data transmission; the terminal node is used for receiving and sending data information; after node design management of the ZigBee network is completed, the ring main unit online monitoring system adopts a star-shaped topological structure and is connected with different terminal nodes by taking the coordinator as a center, and the ring main unit online monitoring system has the characteristics of intelligent analysis monitoring and efficient processing.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring and analysis, and in particular to a monitoring and analysis system based on safety protection. Background Art

[0002] Ring main unit is an especially important power equipment in the traditional power supply and distribution network system. It integrates all or part of the cables, load switches, fuses, measurement and control protection devices, etc. in the metal cabinet. It mainly acts on the tapping and transfer cables and is responsible for receiving and distributing electric energy in the power system. In particular, 10kV ring main unit is widely used in residential areas, various factories, load centers, substations at all levels, switchgears and distribution stations. It is one of the most critical equipment in the distribution network and power supply process of large users. For a long time, the maintenance of ring main unit has relied on the operation and maintenance personnel to regularly monitor the ring main unit offline. The operation and maintenance personnel collect equipment data when the equipment is running or stopped, and then process the data through instruments and equipment on site or in the monitoring room, analyze the severity of the fault and the possible location of the fault, and finally propose a solution. However, offline monitoring is generally not real-time, and cannot fully and comprehensively reflect the various states of the ring main unit during operation. It is impossible to predict the sudden failure of the ring main unit, so there are many defects in preventing accidents. Moreover, offline monitoring sometimes requires pre-arranged power outage time. If the test time is long and the task volume is large, the power outage loss will increase, and even cause damage to the ring main unit. Therefore, it is necessary to design a monitoring and analysis system based on security protection with intelligent analysis and monitoring as well as efficient processing. Summary of the invention

[0003] The purpose of the present invention is to provide a monitoring and analysis system based on safety protection to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a monitoring and analysis method based on security protection, including: Design, build and manage ZigBee network monitoring for ring main units; Design, control and manage the network monitoring of the ring main unit; Carry out monitoring, collection, analysis, control and processing of ring network cabinets; Carry out data information matching and transmission processing of ring main unit; The design, construction and management of ZigBee network monitoring for ring main units include: Design network nodes for the ZigBee network monitored by the ring main unit. The nodes are coordinators, routers and terminals. Each network established by the coordinator corresponds to a unique network ID. The router performs relay processing for network data transmission, and the terminal node is used to receive and send data information. After completing the node design and management of the ZigBee network, the ring main unit online monitoring system adopts a star topology structure and connects different terminal nodes with the coordinator as the center.

[0005] According to the above technical solution, the design, control and management of the network monitoring of the ring main unit includes: Cancel the setting of the fault indication panel, and transmit the high-voltage power failure data directly to the host computer through ZigBee wireless networking, so that the host computer can display the faulty ring network cabinet in time.

[0006] According to the above technical solution, the data information matching and transmission processing of the ring main unit includes: The discharge signal collected by HFCT in the ZigBee network is amplified, and after the envelope detection, the signal is frequency-reduced once, and then the detected single pulse signal is integrated by an integration circuit to achieve the secondary frequency reduction of the signal.

[0007] According to the above technical solution, the data information matching and transmission processing of the ring main unit further includes: After completing the amplification and prize processing of the HFCT collected signal in the ZigBee network, further signal preprocessing is performed on it, including signal noise reduction, normalization and effective length interception; After extracting the statistical characteristic information of the mean, standard deviation, skewness and steepness of the ZigBee network signal respectively, the statistical characteristic parameters are extracted through MATLAB and stored.

[0008] According to the above technical solution, the data information matching and transmission processing of the ring main unit includes: After obtaining the characteristic parameter extraction results of the ZigBee network signal, match it with the set standard data; After receiving the matching result data information, it is transmitted to the workbench together with the collected data information of the ring main unit for the corresponding staff to review and process.

[0009] According to the above technical solution, a monitoring and analysis system based on security protection includes: Network design module, used for ring main unit monitoring ZigBee network design and processing; An analysis and processing module is used to analyze and control network signal characteristics; The matching notification module is used to manage the matching notification of data information.

[0010] According to the above technical solution, the network design module includes: Network node module, used for ZigBee network node control; Network structure module, used to analyze and manage the network structure of the ZigBee network; The monitoring design module is used to carry out monitoring design processing of the ring main unit.

[0011] According to the above technical solution, the analysis and processing module includes: Signal conditioning module, used for signal conditioning control of ZigBee network; A preprocessing module, used for preprocessing network signal characteristics; The feature extraction module is used to extract and process network signal features.

[0012] According to the above technical solution, the matching notification module includes: A matching and comparison module is used to match and compare data information; The transmission notification module is used to control the transmission notification of data information.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention, by providing a network design module, an analysis and processing module and a matching notification module, can monitor the sudden failure of the ring main unit in real time, and make the collected data information fully reflect the various states of the ring main unit during operation, avoiding the situation where the failure of the ring main unit cannot be detected due to the delay in collection, thereby causing more serious losses. Each sensor corresponds to a terminal node, ensuring that the monitoring and operation analysis of the ring main unit is more efficient and accurate, and effectively reducing the generation of errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 is a flow chart of a monitoring and analysis method based on security protection provided in Example 1 of the present invention; Figure 2 It is a module structure diagram of the monitoring and analysis system based on security protection provided in the second embodiment of the present invention. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] Embodiment 1: Figure 1This is a flow chart of a monitoring and analysis method based on security protection provided in Embodiment 1 of the present invention. This embodiment can be applied to an online monitoring system for a ring main unit. This method can be executed by a monitoring and analysis system based on security protection provided in an embodiment of the present invention. The system is composed of multiple software and hardware modules, such as Figure 1 As shown, the method specifically comprises the following steps: S101. Design, build and manage ZigBee network monitoring for ring main units; Exemplarily, in an embodiment of the present invention, a network node design is performed for the ZigBee network monitored by the ring main unit, and the nodes are coordinators, routers and terminals, wherein each network established by the coordinator corresponds to a unique network ID, the router performs relay processing for network data transmission, and the terminal node is used to receive and send data information; in this step, the coordinator is the most critical node in the ZigBee network, there is only one in the network, and each network established by the coordinator corresponds to a unique network D. At the same time, in order to maintain the stability of the network, the coordinator can maintain and manage the network after completing the work of starting and configuring the network, and the router acts as a bridge in the ZigBee network. The role of the beam is that when a terminal node needs to communicate with the coordinator, if the distance is too far, the router can be used as a relay node, which can effectively increase the communication distance and expand the coverage of the network terminal node. The terminal node can access a pre-set network and complete the reception and transmission of data in a cycle. At the same time, the terminal node can enter sleep mode when not working, and the power consumption is low. Through this processing, the ZigBee network is used to monitor the ring network cabinet, which can monitor the sudden failure of the ring network cabinet in real time, and make the collected data information fully reflect the various states of the ring network cabinet during operation, so as to avoid the failure of the ring network cabinet due to the delay in collection, thereby causing more serious losses.

[0017] After completing the node design and management of the ZigBee network, the online monitoring system of the ring main unit adopts a star topology and connects different terminal nodes with the coordinator as the center. Since the networking structure of the star network topology is relatively simple compared to other topologies, this step uses a star topology and connects different terminal nodes with the coordinator as the center. While building and maintaining the network, data communication can be carried out with all terminal nodes in the network, so that each sensor corresponds to a terminal node, ensuring that the monitoring and operation analysis of the ring main unit is more efficient and accurate, and effectively reducing the occurrence of errors.

[0018] S102. Design, control and manage the network monitoring of the ring main unit; Exemplarily, in an embodiment of the present invention, the setting of the fault indication panel is canceled, and the data of high-voltage power failure is directly transmitted to the host computer through ZigBee wireless networking, so that the host computer can display the faulty ring network cabinet in time; because the traditional high-voltage power failure indication adopts a fault indication panel, the panel is embedded in the cabinet of the ring network cabinet. When a fault occurs, the operation and maintenance personnel can only locate the faulty ring network cabinet by going to the site for reconnaissance, and cannot make a remote and timely judgment. Therefore, through this step, the transmission and display of data information is carried out through ZigBee wireless networking, which can make the data information transmission more efficient and stable, and the fault can be discovered and handled in time.

[0019] S103, performing monitoring, collection, analysis, control and processing of the ring main unit; Exemplarily, in an embodiment of the present invention, the discharge signal collected by the HFCT in the ZigBee network is amplified, and after the primary frequency reduction of the signal is achieved through envelope detection, the detected single pulse signal is further integrated through an integration circuit to achieve secondary frequency reduction of the signal; since the frequency of the local discharge signal collected by the HFCT sensor can reach up to 20MHz, and the AD acquisition unit of a general MCU cannot achieve such a high accuracy, through this step, after the original HFCT signal is amplified, the frequency of the original HFCT signal can be reduced through secondary frequency reduction, which greatly reduces the cost of the hardware acquisition circuit.

[0020] After completing the amplification and prize processing of the HFCT collected signal in the ZigBee network, the signal is further preprocessed, including signal noise reduction, normalization and effective length interception; since the noise around the ring network cabinet includes white noise, periodic noise, narrowband interference and discrete noise, wavelet transformation is used to reduce the noise of the signal in this step. Since the discharge signal is a non-stationary signal, it is well preserved after wavelet transformation, which also reduces the amount of data and simplifies the difficulty of data analysis and processing. At the same time, as the voltage regulator is pressurized, the signal amplitude range collected by HFCT will change. Therefore, the signal is normalized between 0.01 and 1, which can reduce the discreteness of the signal and facilitate the extraction of signal features; in the process of signal extraction, the directly extracted signal has a certain sparsity, and the stage where no discharge occurs and the stage where the discharge is repeated will seriously affect the recognition effect. In order to reduce the sparsity of the data and improve the validity of the data, the peak of the discharge signal is taken as the center, and the data of the set part before and after the peak is intercepted as valid data, which is conducive to subsequent analysis and processing.

[0021] After extracting the statistical characteristic information of the mean, standard deviation, skewness and steepness of the ZigBee network signal respectively, the statistical characteristic parameters are extracted through MATLAB and stored.

[0022] S104, performing data information matching and transmission processing of the ring main unit; Exemplarily, in an embodiment of the present invention, after obtaining the characteristic parameter extraction result of the ZigBee network signal, it is matched with the set standard data; After receiving the matching result data information, it is transmitted to the workbench together with the collected data information of the ring main unit for the corresponding staff to review and process.

[0023] Embodiment 2: Embodiment 2 of the present invention provides a monitoring and analysis system based on security protection. Figure 2 The schematic diagram of the module structure of the monitoring and analysis system based on security protection provided in the second embodiment is as follows: Figure 2 As shown, the system includes: Network design module, used for ring main unit monitoring ZigBee network design and processing; An analysis and processing module is used to analyze and control network signal characteristics; The matching notification module is used to manage the matching notification of data information.

[0024] In some embodiments of the present invention, the network design module includes: Network node module, used for ZigBee network node control; Network structure module, used to analyze and manage the network structure of the ZigBee network; The monitoring design module is used to carry out monitoring design processing of the ring main unit.

[0025] In some embodiments of the present invention, the analysis and processing module includes: Signal conditioning module, used for signal conditioning control of ZigBee network; A preprocessing module, used for preprocessing network signal characteristics; The feature extraction module is used to extract and process network signal features.

[0026] In some embodiments of the present invention, the matching notification module includes: A matching and comparison module is used to match and compare data information; The transmission notification module is used to control the transmission notification of data information.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A monitoring and analysis method based on security protection, Features: include: Design, build and manage ZigBee network monitoring for ring main units; Design, control and manage the network monitoring of the ring main unit; Carry out monitoring, collection, analysis, control and processing of ring network cabinets; Carry out data information matching and transmission processing of ring main unit; The design, construction and management of ZigBee network monitoring for ring main units include: Design network nodes for the ZigBee network monitored by the ring main unit. The nodes are coordinators, routers and terminals. Each network established by the coordinator corresponds to a unique network ID. The router performs relay processing for network data transmission, and the terminal node is used to receive and send data information. After completing the node design and management of the ZigBee network, the ring main unit online monitoring system adopts a star topology structure and connects different terminal nodes with the coordinator as the center.

2. According to the monitoring and analysis method based on security protection according to claim 1, Features: The design, control and management of network monitoring of the ring main unit includes: Cancel the setting of the fault indication panel, and transmit the high-voltage power failure data directly to the host computer through ZigBee wireless networking, so that the host computer can display the faulty ring network cabinet in time.

3. According to the monitoring and analysis method based on security protection according to claim 1, Features: The data information matching and transmission processing of the ring main unit includes: The discharge signal collected by HFCT in the ZigBee network is amplified, and after the envelope detection, the signal is frequency-reduced once, and then the detected single pulse signal is integrated by an integration circuit to achieve the secondary frequency reduction of the signal.

4. The monitoring and analysis method based on security protection according to claim 1, Features: The data information matching and transmission processing of the ring main unit further includes: After completing the amplification and prize processing of the HFCT collected signal in the ZigBee network, further signal preprocessing is performed on it, including signal noise reduction, normalization and effective length interception; After extracting the statistical characteristic information of the mean, standard deviation, skewness and steepness of the ZigBee network signal respectively, the statistical characteristic parameters are extracted through MATLAB and stored.

5. The monitoring and analysis method based on security protection according to claim 1, Features: The data information matching and transmission processing of the ring main unit includes: After obtaining the characteristic parameter extraction results of the ZigBee network signal, match it with the set standard data; After receiving the matching result data information, it is transmitted to the workbench together with the collected data information of the ring main unit for the corresponding staff to review and process.

6. A monitoring and analysis system based on security protection, Features: include: Network design module, used for ring main unit monitoring ZigBee network design and processing; An analysis and processing module is used to analyze and control network signal characteristics; The matching notification module is used to manage the matching notification of data information.

7. The monitoring and analysis system based on security protection according to claim 6, Features: The network design module includes: Network node module, used for ZigBee network node control; Network structure module, used to analyze and manage the network structure of the ZigBee network; The monitoring design module is used to carry out monitoring design processing of the ring main unit.

8. The monitoring and analysis system based on security protection according to claim 6, Features: The analysis and processing module comprises: Signal conditioning module, used for signal conditioning control of ZigBee network; A preprocessing module, used for preprocessing network signal characteristics; The feature extraction module is used to extract and process network signal features.

9. The monitoring and analysis system based on security protection according to claim 6, Features: The matching notification module includes: A matching and comparison module is used to match and compare data information; The transmission notification module is used to control the transmission notification of data information.

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