Intelligent low-voltage circuit breaker three-mode encryption communication system
Through the intelligent low-voltage circuit breaker three-mode encryption communication system, the encryption module, switching module, single-phase dual-mode carrier module and LoRa module are integrated, which solves the problem of data transfer between the intelligent low-voltage circuit breaker and the terminal in complex scenes in remote areas or environments, and realizes safe transmission and effective communication of data.
Patent Information
- Application Number
- CN202421458051.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-24
AI Technical Summary
In remote areas or in complex environments, it is difficult to realize effective data interchange between smart low-voltage circuit breakers and terminals in remote areas or in complex environments, and the existing technology fails to effectively ensure data security, which increases installation and debugging costs.
An intelligent low-voltage circuit breaker three-mode encryption communication system is designed, integrating encryption modules, switching modules, single-phase dual-mode carrier modules and LoRa modules. Through these modules, three-mode communication between HPLC+RF single-phase dual-mode and LoRa communication methods is realized, and data is encrypted and decrypted through the encryption module to ensure data security.
It realizes effective communication and data security between the intelligent low-voltage circuit breaker and the terminal, improves the installation and debugging efficiency of on-site engineers, avoids the problem of data interaction interruption, and enhances the robustness of the system.
Smart Images
Figure CN222674334U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit breakers, in particular to an intelligent low-voltage circuit breaker three-mode encryption communication system. Background Art
[0002] Currently, most manufacturers use single-mode and dual-mode (HPLC, RF, HPLC+RF) communication methods to realize the mutual conversion of power grid data from the intelligent low-voltage circuit breaker side to the terminal side. However, due to the influence of the environment and external environment, such as too many 220V power lines in mountainous areas or difficult construction, data may not be able to be mutually converted.
[0003] In addition, most manufacturers currently use single-mode and dual-mode (HPLC, RF, HPLC+RF) communication methods to only forward data, but the data is not encrypted, and the security of power user data may not be guaranteed; or an external encryption machine is used to ensure the security of power user data, but this will increase the installation and debugging costs.
[0004] Therefore, an intelligent low-voltage circuit breaker three-mode encrypted communication system is needed to solve the problem when remote areas cannot support single-mode and dual-mode (HPLC, RF, HPLC+RF) communication methods or when the site requires the use of LORA wireless for data transmission and reception, as well as to further ensure data security and improve the efficiency of installation and debugging of on-site engineering personnel. Utility Model Content
[0005] The utility model aims to provide a three-mode encrypted communication system for an intelligent low-voltage circuit breaker to solve the problem of effective communication between the intelligent low-voltage circuit breaker and a terminal.
[0006] In order to solve the above utility model purpose, the utility model provides an intelligent low-voltage circuit breaker three-mode encryption communication system, including: an encryption module, a switching module, a single-phase dual-mode carrier module and a LoRa module;
[0007] The encryption module is connected to the single-phase dual-mode carrier module or the LoRa module through the switching module.
[0008] Optionally, a main control module is also included;
[0009] The data received by the single-phase dual-mode carrier module or the LoRa module is transmitted to the encryption module through the main control module, and the data processed by the encryption module is transmitted to the execution unit through the main control module;
[0010] The data received by the main control module is processed by the encryption module and then transmitted to the single-phase dual-mode carrier module or the LoRa module.
[0011] Optionally, a UART is also included, and data is transmitted with the execution unit through the UART.
[0012] Optionally, the main control module is provided with a UART interface.
[0013] Optionally, the UART is connected to the main control module via pins.
[0014] Optionally, the encryption module supports multiple encryption algorithms, including: AES, RSA or DES.
[0015] Optionally, the encryption module includes a QSE100 chip, a NRSE3000 chip or a SGC1126A chip.
[0016] Optionally, the single-phase dual-mode carrier module supports high-voltage power line communication, radio frequency communication, or a combination of high-voltage power line communication and radio frequency communication.
[0017] Compared with the prior art, the utility model provides an intelligent low-voltage circuit breaker three-mode encryption communication system, which realizes three-mode communication by combining HPLC+RF single-phase dual-mode communication mode and LoRa communication mode; in addition, private data protection is added, and the security of data during transmission is ensured through the encryption module; effective communication and data security between the intelligent low-voltage circuit breaker and the terminal are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the data transmission path of the intelligent low-voltage circuit breaker in the embodiment of the utility model;
[0019] Figure 2 It is a structural schematic diagram of a three-mode encrypted communication system of an intelligent low-voltage circuit breaker in an embodiment of the utility model. DETAILED DESCRIPTION
[0020] The present invention will be described below in conjunction with the schematic diagram, wherein the preferred embodiment of the present invention is shown, and it should be understood that those skilled in the art can modify the present invention described herein, and still achieve the beneficial effects of the present invention. Therefore, the following description should be understood as being widely known to those skilled in the art, and not as a limitation to the present invention.
[0021] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.
[0022] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0023] The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.
[0024] The utility model provides an intelligent low-voltage circuit breaker three-mode encryption communication system, please refer to Figure 1 - Figure 2 , including: encryption module, switching module, single-phase dual-mode carrier module and LoRa module.
[0025] The encryption module is connected to the single-phase dual-mode carrier module or the LoRa module through the switching module.
[0026] In this embodiment, the single-phase dual-mode carrier module and the LoRa (Long Range) module are used to transmit data. The intelligent low-voltage circuit breaker three-mode encryption communication system provided in this embodiment introduces the LoRa module on the basis of the single-phase dual-mode carrier module to ensure effective communication between the intelligent low-voltage circuit breaker and the terminal. When a single communication mode is abnormal, the switching module switches to another communication mode to avoid the problem of data interaction interruption; the robustness of the system is improved, especially when environmental factors affect the communication. In addition, the encryption module is used to encrypt and decrypt the data to ensure data security, which helps to realize the intelligent management and remote monitoring of the power system and improve the reliability and efficiency of the power grid.
[0027] It should be noted that Figure 2 The arrow direction in the figure is the data processing direction, where the encryption module is the same hardware. The plan view cannot reflect bidirectional data processing, so the two encryption modules in the plan view refer to two data processing methods of the same device, including: decrypting the data received from the terminal and then uploading it to the execution unit of the intelligent low-voltage circuit breaker, and encrypting the data received from the execution unit of the intelligent low-voltage circuit breaker and then transmitting it to the terminal.
[0028] Please continue to refer to Figure 2 The switching module is a switching switch, and the communication path is switched by the switching switch.
[0029] Furthermore, the single-phase dual-mode carrier module supports HPLC (high voltage power line communication), RF (radio frequency communication) or HPLC+RF (combination of high voltage power line communication and radio frequency communication).
[0030] In this embodiment, the single-phase dual-mode carrier module uses the HT8830 chip, and the LoRa module uses the SX1278 chip.
[0031] Furthermore, the intelligent low-voltage circuit breaker three-mode encrypted communication system also includes a main control module.
[0032] In this embodiment, the main control module uses a microcontroller of the STM32F405RGT6 model produced by ST Microelectronics.
[0033] The data received by the single-phase dual-mode carrier module or the LoRa module is transmitted to the encryption module through the main control module, and the data processed by the encryption module is transmitted to the execution unit through the main control module.
[0034] The data received by the main control module is processed by the encryption module and then transmitted to the single-phase dual-mode carrier module or the LoRa module.
[0035] Specifically, the single-phase dual-mode carrier module or the LoRa module flows the data received from the terminal into the main control module, and the main control module is used to send the data to the encryption module for decryption, and send the decrypted data to the execution unit of the intelligent low-voltage circuit breaker.
[0036] Specifically, the main control module is used to send the received data to the encryption module for encryption, and the encryption module is used to send the encrypted data to the main control module again. The main control module is also used to send the encrypted data to the single-phase dual-mode carrier module or the LoRa module.
[0037] It should be noted that, in this embodiment, the main control module controls the switching module to switch the communication mode. In this embodiment, the main control module supports the implementation of this function, and there is no need to set up a switching control function separately.
[0038] Furthermore, in a specific example, the intelligent low-voltage circuit breaker three-mode encryption communication system also includes a UART (Universal Asynchronous Receiver / Transmitter).
[0039] The UART is used for data transmission with the execution unit of the intelligent low-voltage circuit breaker.
[0040] The main control module is provided with a UART interface or the UART is connected to the main control module via pins.
[0041] In a specific example, the UART is integrated in the main control module: the main control module has a built-in UART interface for serial communication with the execution unit or external device.
[0042] In another specific example, the system is provided with an independent UART chip: UART exists as an independent hardware chip, which is connected to the main control module through pins, so that the main control module communicates with the execution unit through the UART chip.
[0043] In addition, the UART may also be installed in an execution unit of the circuit breaker, such as a sensor, an actuator, etc., to send data of these units to the main control module via serial communication.
[0044] Furthermore, the encryption module supports multiple encryption algorithms, including: AES, RSA or DES.
[0045] Among them, AES (Advanced Encryption Standard): AES is a symmetric key encryption algorithm developed by the National Institute of Standards and Technology (NIST) of the United States.
[0046] RSA (Rivest-Shamir-Adleman): AES is an asymmetric key encryption algorithm proposed by Ron Rivest, Adi Shamir and Leonard Adleman in 1977.
[0047] DES (Data Encryption Standard): DES is a symmetric key encryption algorithm adopted by the National Institute of Standards and Technology (NIST) as a federal information processing standard in 1977.
[0048] The encryption module includes a QSE100 chip, a NRSE3000 chip or a SGC1126A chip.
[0049] In this embodiment, the main data flows through the intelligent low-voltage circuit breaker three-mode encryption communication system are divided into two situations: data is sent from the terminal and data is sent from the circuit breaker execution unit.
[0050] 1. Data is sent from the terminal:
[0051] The data is first sent by the terminal through HPLC+RF single-phase dual-mode or LoRa communication.
[0052] The HPLC+RF single-phase dual-mode carrier module or LoRa module of the intelligent low-voltage circuit breaker three-mode encryption communication system receives the above data.
[0053] The data flows into the main control module, which is responsible for processing and controlling the operation of the entire system.
[0054] The main control module sends the data to the encryption module, which decrypts it through the encryption chip to ensure the security of data transmission.
[0055] The decrypted data is distributed to the execution unit of the intelligent low-voltage circuit breaker to perform corresponding operations or records.
[0056] 2. Data is sent from the execution unit of the intelligent low-voltage circuit breaker:
[0057] The execution unit of the intelligent low-voltage circuit breaker sends data to the three-mode encrypted communication system of the intelligent low-voltage circuit breaker through UART (Universal Asynchronous Receiver / Transmitter).
[0058] The main control module of the communication system receives the above data.
[0059] The main control module sends the data to the encryption module, which is encrypted by the encryption chip to ensure the security of data transmission.
[0060] The encrypted data flows into the main control module again.
[0061] The main control module uploads the encrypted data to the HPLC+RF single-phase dual-mode carrier module or the LoRa module.
[0062] Finally, the data is sent back to the terminal via HPLC+RF single-phase dual-mode or LoRa module.
[0063] Furthermore, the three-mode encrypted communication system of the intelligent low-voltage circuit breaker must first ensure that there is no abnormality in the power-on process before it can operate normally. The communication protocol uses the 645 protocol. The power-on process is described as follows:
[0064] 1. The task cycle receives the table reading address from STA following the 645 protocol:
[0065] The STA (Station, i.e., client) sends a 645 protocol meter read address request.
[0066] The intelligent low-voltage circuit breaker three-mode encrypted communication system receives and forwards the request to the circuit breaker.
[0067] The circuit breaker replies with a response containing the table address.
[0068] 2. The task cycle receives the production date from STA following the 645 protocol:
[0069] STA sends a 645 protocol read production date request.
[0070] The intelligent low-voltage circuit breaker three-mode encrypted communication system receives and forwards the request to the circuit breaker.
[0071] The circuit breaker replies with a response containing the production date.
[0072] 3. The task cycle receives the read software version from STA following the 645 protocol:
[0073] STA sends a 645 protocol read software version request.
[0074] The intelligent low-voltage circuit breaker three-mode encrypted communication system receives and forwards the request to the circuit breaker.
[0075] The circuit breaker replies with a response containing the software version.
[0076] If the circuit breaker does not respond or responds abnormally, STA will wait for 5 seconds before sending the request again to ensure the stability and reliability of communication.
[0077] In the utility model, effective communication and data security between the intelligent low-voltage circuit breaker and the terminal are realized through the intelligent low-voltage circuit breaker three-mode encryption communication system; the security of data in the transmission process is ensured through the encryption module; the data transmission efficiency and reliability are improved by integrating HPLC+RF single-phase dual-mode and LoRa communication modes. When a single communication mode is abnormal, the system can automatically switch to another communication mode, thereby avoiding the problem of data interaction interruption and improving the robustness of the system, especially when environmental factors affect the communication.
[0078] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. An intelligent low-voltage circuit breaker three-mode encryption communication system, characterized in that: include: Encryption module, switching module, single-phase dual-mode carrier module and LoRa module; The encryption module is connected to the single-phase dual-mode carrier module or the LoRa module through the switching module.
2. The intelligent low-voltage circuit breaker three-mode encryption communication system according to claim 1, characterized in that: It also includes a main control module; The data received by the single-phase dual-mode carrier module or the LoRa module is transmitted to the encryption module through the main control module, and the data processed by the encryption module is transmitted to the execution unit through the main control module; The data received by the main control module is processed by the encryption module and then transmitted to the single-phase dual-mode carrier module or the LoRa module.
3. The intelligent low-voltage circuit breaker three-mode encryption communication system according to claim 2, characterized in that: It also includes a UART, through which data is transmitted with the execution unit.
4. The intelligent low-voltage circuit breaker three-mode encryption communication system according to claim 3, characterized in that: The main control module is provided with a UART interface.
5. The intelligent low-voltage circuit breaker three-mode encryption communication system according to claim 3, characterized in that: The UART is connected to the main control module via pins.
6. The intelligent low-voltage circuit breaker three-mode encryption communication system according to claim 1, characterized in that: The encryption module supports multiple encryption algorithms, including: AES, RSA or DES.
7. The intelligent low-voltage circuit breaker three-mode encryption communication system according to claim 1, characterized in that: The encryption module includes a QSE100 chip, a NRSE3000 chip or a SGC1126A chip.
8. The intelligent low-voltage circuit breaker three-mode encryption communication system according to claim 1, characterized in that: The single-phase dual-mode carrier module supports high-voltage power line communication, radio frequency communication, or a combination of high-voltage power line communication and radio frequency communication.