Small-size double-MCU double-module communication device and control system thereof

Abstract

The utility model provides a small-size double-MCU double-module communication device and a control system thereof, which relate to the technical field of data communication in the power industry, and comprise a first control assembly, a second control assembly, a feeder terminal module and a power line fault monitoring module configured on the feeder terminal module, the output end of the feeder terminal module is electrically connected with the input end of the first control assembly, the output end of the power line fault monitoring module is electrically connected with the input end of the second control assembly, and the data end of the first control assembly and the data end of the second control assembly are respectively connected with power distribution master stations of different external transformer areas through 4G and 1.8 G power private networks for data interaction; and the first control component and the second control component support independent transmission of the data channel. According to the utility model, the two groups of MCUs and the two groups of modules are combined together, and independent control is realized through each CPU, so that the technical problem of independent and safe data transmission under the condition of small volume is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of data communication in the electric power industry, and in particular to a small-volume dual-MCU dual-module communication device and a control system thereof. Background Art

[0002] The power industry has always traditionally paired devices and platforms, with different substations having different devices for data collection and transmission. With the introduction of primary and secondary integration solutions, the size of devices has become smaller and smaller; in addition, the power grid has requirements for information security and data independence, and the traditional combination of a single MCU and dual modules can no longer meet the increasingly demanding data transmission tasks.

[0003] Specifically, with the development of power automation, more and more terminal devices need to send data to different substations. In actual use, data channels must be completely independent and physically isolated while sending data. Currently, the market mainly adopts dual devices or a single MCU and dual modules to achieve data transmission. Among them, the existing dual devices are expensive and too large to meet on-site needs. The existing single MCU and dual module combination has the problem that data cannot be completely independent and physically isolated; the reliability is low, and when there is a problem with the MCU, it will affect the two-way data transmission; and the real-time interaction of the two data channels is low, requiring the MCU to switch between different modules.

[0004] In view of this, this application is filed. Utility Model Content

[0005] The utility model discloses a small-volume dual-MCU dual-module communication device and a control system thereof, which can effectively solve the problems in the prior art that the dual devices are high in cost and too large in size and cannot meet on-site needs; and the problems that the data in the single MCU and dual-module combination mode in the prior art cannot be completely independent and physically isolated, and the reliability is low, and when a problem occurs in the MCU, it will affect the transmission of the two-way data, and the interactive real-time performance of the two-way data is low, and the MCU needs to switch between different modules.

[0006] The utility model discloses a small-volume dual-MCU dual-module communication device, comprising: a first control component, a second control component, a feeder terminal module, and a power line fault monitoring module configured on the feeder terminal module;

[0007] The output end of the feeder terminal module is electrically connected to the input end of the first control component, the output end of the power line fault monitoring module is electrically connected to the input end of the second control component, and the data end of the first control component and the data end of the second control component are respectively connected to the external power distribution master stations in different substations through 4G and power 1.8G private networks for data interaction;

[0008] The first control component supports independent transmission of data channels, and the second control component supports independent transmission of data channels.

[0009] Preferably, the first control component includes a first main control module, a first communication module embedded in the first main control module, a first power management module, and a first isolation circuit, wherein the first main control module is electrically connected to the first communication module, the first power management module, and the first isolation circuit, the first communication module is electrically connected to the feeder terminal module through a serial port or a network port, the first communication module is connected to a power distribution main station in an external substation through a 4G and a 1.8G power private network, and the first isolation circuit is configured to isolate the electrical connection between the first communication module and the first main control module.

[0010] Preferably, the chip model of the first main control module is 7520V3E, the chip model of the first power management module is MP9943, and the chip model of the first Lianxun module is Lianxun LX102.

[0011] Preferably, the second control component includes a second main control module, a second communication module embedded in the second main control module, a second power management module, and a second isolation circuit, wherein the second main control module is electrically connected to the second communication module, the second power management module, and the second isolation circuit, the second communication module is electrically connected to the power line fault monitoring module through a network port, the second communication module is connected to the power distribution main station of the external substation through 4G and power 1.8G private networks, and the second isolation circuit is configured to isolate the electrical connection between the second communication module and the second main control module.

[0012] Preferably, the chip model of the second main control module is 7520V3E, the chip model of the second power management module is MP9943, and the chip model of the second Lianxun module is Lianxun LX102.

[0013] Preferably, the feeder terminal module is a cover-type FTU.

[0014] Preferably, the power line fault monitoring module is a traveling wave positioning module, and the traveling wave positioning module is configured to locate and monitor the fault point of the power line.

[0015] Preferably, it further includes a first watchdog module and a second watchdog module, wherein the first watchdog module is electrically connected to the first control component, and the second watchdog module is electrically connected to the second control component.

[0016] The utility model also discloses a communication control system of a small-volume dual-MCU dual-module group, including: a first encryption gateway, a second encryption gateway, a power distribution main station of a first substation, a power distribution main station of a second substation, and a communication device of a small-volume dual-MCU dual-module group as described in any one of the above items, wherein the data end of the first control component is connected to the first encryption gateway via 4G and a 1.8G power private network, the first encryption gateway is connected to the power distribution main station of the first substation for data interaction, the data end of the second control component is connected to the second encryption gateway via 4G and a 1.8G power private network, the second encryption gateway is connected to the power distribution main station of the second substation for data interaction.

[0017] In summary, the present embodiment provides a small-volume dual-MCU dual-module communication device and its control system, which combines two groups of MCUs and two groups of modules and independently controls each CPU, thereby solving the problem in the prior art that the communication device, when in a small volume, needs to send the same terminal data or two different terminal data to two different central platforms completely independently and securely. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a small-volume dual-MCU dual-module communication device provided by an embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a control component of a small-volume dual-MCU dual-module communication device provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0021] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] See also Figure 1 to Figure 2 The first embodiment of the utility model provides a small-volume dual-MCU dual-module communication device, comprising: a first control component, a second control component, a feeder terminal module, and a power line fault monitoring module configured on the feeder terminal module;

[0023] The output end of the feeder terminal module is electrically connected to the input end of the first control component, the output end of the power line fault monitoring module is electrically connected to the input end of the second control component, and the data end of the first control component and the data end of the second control component are respectively connected to the external power distribution master stations in different substations through 4G and power 1.8G private networks for data interaction;

[0024] The first control component supports independent transmission of data channels, and the second control component supports independent transmission of data channels.

[0025] Preferably, the first control component includes a first main control module, a first communication module embedded in the first main control module, a first power management module, and a first isolation circuit, wherein the first main control module is electrically connected to the first communication module, the first power management module, and the first isolation circuit, the first communication module is electrically connected to the feeder terminal module through a serial port or a network port, the first communication module is connected to a power distribution main station in an external substation through a 4G and a 1.8G power private network, and the first isolation circuit is configured to isolate the electrical connection between the first communication module and the first main control module.

[0026] Preferably, the chip model of the first main control module is 7520V3E, the chip model of the first power management module is MP9943, and the chip model of the first Lianxun module is Lianxun LX102.

[0027] Preferably, the second control component includes a second main control module, a second communication module embedded in the second main control module, a second power management module, and a second isolation circuit, wherein the second main control module is electrically connected to the second communication module, the second power management module, and the second isolation circuit, the second communication module is electrically connected to the power line fault monitoring module through a network port, the second communication module is connected to the power distribution main station of the external substation through 4G and power 1.8G private networks, and the second isolation circuit is configured to isolate the electrical connection between the second communication module and the second main control module.

[0028] Preferably, the chip model of the second main control module is 7520V3E, the chip model of the second power management module is MP9943, and the chip model of the second Lianxun module is Lianxun LX102.

[0029] Specifically, in this embodiment, the first control component and the second control component constitute a dual RT100-Z router, which is used as the core node of the communication of this device and supports the independent transmission of data channels. At the same time, 4G and power 1.8G private networks are used as the main data transmission channels to ensure the stability and reliability of communication. First, the dual RT100-Z router is deployed at the core position of the power distribution network to ensure that it can effectively communicate with the first distribution master station and the second distribution master station; then configure the encryption gateway to realize encrypted transmission of data; then deploy the feeder terminal module at the end of the distribution network, connect to the dual RT100-Z router through a serial port or a network port, and then exchange data with the distribution master station through 4G and power 1.8G private networks.

[0030] In this embodiment, the first control component and the second control component respectively use independent power management ICs to manage the power supply of each module to isolate the power supply of each module and prevent the two control components from affecting each other, thereby providing independence and stability of the modules. In addition, the first control component and the second control component also use a physical isolation method of the two control components to prevent one module from interfering with the normal operation of another module. The two control components use independent MCUs and isolation circuits to ensure the isolation of data interaction, thereby achieving data interaction isolation, which greatly improves the data interaction reliability of the device.

[0031] Among them, the data transmission conflict processing is that when two control components try to transmit data at the same time, because the independent two control component structures are adopted, the independence of data transmission is guaranteed, so there is no need to adopt complex synchronization mechanisms and data conflict processing mechanisms to handle possible data conflicts. In short, the small-volume dual-MCU dual-module communication device can achieve the above goals well through the dual MCU and dual-module combination solution. This device has its own MCU in the dual module, which improves system reliability.

[0032] Preferably, the feeder terminal module is a cover-type FTU.

[0033] In this embodiment, the hood-type FTU serves as the terminal device of the power distribution network and supports multiple communication protocols and interfaces. The hood-type FTU (Faul lt-Tolerant Unit) is a device used for power system protection, which is mainly used to detect faults in the power grid and take measures to protect the normal operation of equipment and systems. The hood-type FTU is usually installed in key locations of the power system, such as substations, distribution devices, etc., to monitor parameters such as current and voltage, and trigger protection actions when abnormal conditions are detected, such as cutting off power or issuing alarm signals to avoid the expansion of faults or damage to equipment. The hood-type FTU usually has a certain fault tolerance capability, which can ensure the normal operation of the system even in partial fault conditions. This fault tolerance capability is crucial to improving the reliability and stability of the power system, especially in key application scenarios, such as when the power supply has a greater impact on industrial production, medical equipment, etc. It should be noted that in other embodiments, feeder terminal modules of other types of structures can also be used, which are not specifically limited here, but these schemes are all within the protection scope of this utility model.

[0034] Preferably, the power line fault monitoring module is a traveling wave positioning module, and the traveling wave positioning module is configured to locate and monitor the fault point of the power line.

[0035] In this embodiment, the traveling wave positioning module is used to monitor and locate the fault point of the power line in real time; the traveling wave positioning module is installed and connected to the power distribution main station through the network port to realize the rapid positioning and response of the power line fault. The traveling wave positioning module (Traveling Wave Localization Module) is a technical module for determining the position of an object. It usually uses the propagation characteristics of traveling waves, combined with a sensor network or specific hardware equipment, to achieve accurate measurement of the target position. It should be noted that in other embodiments, power line fault monitoring modules of other types of structures can also be used, which are not specifically limited here, but these schemes are all within the protection scope of the present utility model.

[0036] Preferably, it further includes a first watchdog module and a second watchdog module, wherein the first watchdog module is electrically connected to the first control component, and the second watchdog module is electrically connected to the second control component.

[0037] In this embodiment, the device is designed with independent software and hardware abnormality monitoring based on a dual-module structure. A watchdog mechanism is used in hardware, and the two control components in software each monitor the real-time data of the data link to determine whether the data is abnormal. In the event of an abnormality, a link reconnection and a system long-term abnormal restart mechanism are used to ensure the reliability of the system.

[0038] In summary, the small-volume dual-MCU dual-module communication device is a small-volume physically isolated product with flexible data transmission modes, involving power supply, data interaction, data transmission and other mechanisms. It realizes a small-volume communication solution with physical data isolation and independent data transmission, and can adapt to existing application scenarios. The small-volume dual-MCU dual-module communication device is based on a dual-module structure, and improves system reliability and flexibility through parallel processing, so that the independence of each data interface is guaranteed, and the fault tolerance of the system is improved; compared with existing communication equipment, the advantages of this device are:

[0039] (1) Parallel processing: The independent dual-module system can achieve parallel processing. Each module has its own processor and resources and can perform tasks independently, improving the overall processing capacity and efficiency of the device.

[0040] (2) Reliability. Each module is independent. The failure of one module will not affect the normal operation of another module. Therefore, the system reliability is higher. In the traditional single MCU + dual communication module system, a problem with the MCU may cause the entire system to crash. The independent dual module system can avoid this situation.

[0041] (3) Flexibility: The independent dual-module system can be flexibly configured and expanded as needed, and each module can be upgraded or replaced independently without affecting the operation of the entire system. When the function expansion of the MCU+dual communication module system may be limited by the performance and resources of the MCU, the flexibility is low;

[0042] (4) Exclusive use of resources: Each module in the independent dual modules has its own processing and resources, and can manage and utilize resources independently, avoiding resource contention and bottleneck problems. In a single MCU + dual communication module system, the two communication modules need to share the MCU's resources, resulting in performance degradation or resource contention problems;

[0043] (5) Independent dual-module systems can implement fault-tolerant design. For example, dual-module redundancy is adopted. When one module fails, the other module can automatically take over the work to ensure the continuity and stability of the system. However, it is more complicated and difficult to implement fault-tolerant design in a single MCU + dual communication module system, and it is necessary to consider the coordination and synchronization between the MCU and the communication module.

[0044] See also Figure 1 The second embodiment of the utility model provides a communication control system of a small-volume dual-MCU dual-module group, including: a first encryption gateway, a second encryption gateway, a power distribution master station of a first substation, a power distribution master station of a second substation, and a communication device of a small-volume dual-MCU dual-module group as described in any one of the above items, wherein the data end of the first control component is connected to the first encryption gateway through 4G and the power 1.8G private network, the first encryption gateway is connected to the power distribution master station of the first substation for data interaction, the data end of the second control component is connected to the second encryption gateway through 4G and the power 1.8G private network, the second encryption gateway is connected to the power distribution master station of the second substation for data interaction.

[0045] In this embodiment, the first encryption gateway and the second encryption gateway are used to provide encryption and security during data transmission; the first distribution master station in the first substation area and the second distribution master station in the second substation area are responsible for data management in the production area and the management area respectively.

[0046] The above are only preferred implementations of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

Claims

1. A small-volume dual-MCU dual-module communication device, characterized in that: include: A first control component, a second control component, a feeder terminal module, and a power line fault monitoring module configured on the feeder terminal module; The output end of the feeder terminal module is electrically connected to the input end of the first control component, the output end of the power line fault monitoring module is electrically connected to the input end of the second control component, and the data end of the first control component and the data end of the second control component are respectively connected to the external power distribution master stations in different substations through 4G and power 1.8G private networks for data interaction; The first control component supports independent transmission of data channels, and the second control component supports independent transmission of data channels.

2. A small-volume dual-MCU dual-module communication device according to claim 1, characterized in that: The first control component includes a first main control module, a first communication module embedded in the first main control module, a first power management module, and a first isolation circuit, wherein the first main control module is electrically connected to the first communication module, the first power management module, and the first isolation circuit, the first communication module is electrically connected to the feeder terminal module through a serial port or a network port, the first communication module is connected to a power distribution main station in an external substation through a 4G and a 1.8G power private network, and the first isolation circuit is configured to isolate the electrical connection between the first communication module and the first main control module.

3. A small-volume dual-MCU dual-module communication device according to claim 2, characterized in that: The chip model of the first main control module is 7520V3E, the chip model of the first power management module is MP9943, and the chip model of the first Lianxun module is Lianxun LX102.

4. A small-volume dual-MCU dual-module communication device according to claim 1, characterized in that: The second control component includes a second main control module, a second communication module embedded in the second main control module, a second power management module, and a second isolation circuit, wherein the second main control module is electrically connected to the second communication module, the second power management module, and the second isolation circuit, the second communication module is electrically connected to the power line fault monitoring module through a network port, the second communication module is connected to the power distribution main station of the external substation through 4G and power 1.8G private networks, and the second isolation circuit is configured to isolate the electrical connection between the second communication module and the second main control module.

5. A small-volume dual-MCU dual-module communication device according to claim 4, characterized in that: The chip model of the second main control module is 7520V3E, the chip model of the second power management module is MP9943, and the chip model of the second Lianxun module is Lianxun LX102.

6. A small-volume dual-MCU dual-module communication device according to claim 1, characterized in that: The feeder terminal module is a cover-type FTU.

7. A small-volume dual-MCU dual-module communication device according to claim 1, characterized in that: The power line fault monitoring module is a traveling wave positioning module, and the traveling wave positioning module is configured to locate and monitor the fault point of the power line.

8. A small-volume dual-MCU dual-module communication device according to claim 1, characterized in that: It also includes a first watchdog module and a second watchdog module, wherein the first watchdog module is electrically connected to the first control component, and the second watchdog module is electrically connected to the second control component.

9. A small-volume dual-MCU dual-module communication control system, characterized in that: include: A first encrypted gateway, a second encrypted gateway, a power distribution master station in a first substation, a power distribution master station in a second substation, and a small-volume dual-MCU dual-module communication device as described in any one of claims 1 to 8, wherein the data end of the first control component is connected to the first encrypted gateway via 4G and a 1.8G private power network, the first encrypted gateway is connected to the power distribution master station in the first substation for data interaction, the data end of the second control component is connected to the second encrypted gateway via 4G and a 1.8G private power network, the second encrypted gateway is connected to the power distribution master station in the second substation for data interaction.

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