Key acquisition and distribution apparatus

Abstract

The embodiment of the application discloses a kind of key acquisition distribution devices, including: control end and key distribution end;The control end includes first microcontroller unit, interactive unit, key remote management unit and first remote communication unit;The first microcontroller unit is connected with the interactive unit, the key remote management unit and first remote communication unit respectively;The key distribution end includes second microcontroller unit, communication unit, load management terminal and second remote communication unit;The second microcontroller unit is connected with the communication unit, the second remote communication unit, and the communication unit is connected with the load management terminal;The control end and the key distribution end are communicated by the first remote communication unit and the second remote communication unit.Thereby improve work efficiency and the flexibility of operation, save resources, improve work efficiency, also improve the security and reliability of device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of key acquisition of power grid, and particularly relates to a key acquisition and distribution device. BACKGROUND

[0002] With the continuous development of power facilities in the power grid, in the power grid construction site environment, the staff needs to acquire the key, so as to work according to the acquired key.

[0003] In the related art, the key acquisition and distribution can be performed for the load management terminal by means of the electronic terminal key acquisition device in the power industry, and in the process of key acquisition and distribution, the electronic terminal key acquisition device is usually connected to the circuit and a series of cumbersome function tests are performed by the on-site operator.

[0004] However, in the process of acquiring the key, a lot of time is spent, and the on-site deployment of human resources and power grid resources is relied on, resulting in low efficiency of acquiring the key. CONTENT OF THE INVENTION

[0005] Therefore, the present application provides a key acquisition and distribution device to solve the technical problem that a lot of time is spent and the on-site deployment of human resources and power grid resources is relied on in the prior art, resulting in low efficiency of acquiring the key.

[0006] To achieve one or part or all of the above purposes or other purposes, the present application provides a key acquisition and distribution device

[0007] A key acquisition and distribution device, characterized in that the key acquisition and distribution device comprises a control end and a key distribution end.

[0008] The control end comprises a first microcontroller unit, an interaction unit, a key remote management unit and a first remote communication unit, and the first microcontroller unit is connected with the interaction unit, the key remote management unit and the first remote communication unit respectively.

[0009] The key distribution end comprises a second microcontroller unit, a communication unit, a load management terminal and a second remote communication unit, and the second microcontroller unit is connected with the communication unit and the second remote communication unit respectively, and the communication unit is connected with the load management terminal.

[0010] The control end and the key distribution end communicate through the first remote communication unit and the second remote communication unit.

[0011] Optionally, the control end further comprises a built-in first multi-protection power supply module, which respectively supplies power to the first microcontroller unit, the interaction unit and the second remote communication unit.

[0012] Optionally, the key distribution end further comprises a built-in second multi-protection power supply module, which respectively supplies power to the second microcontroller unit, the communication unit and the first remote communication unit.

[0013] Optionally, the first microcontroller unit obtains the key from the key remote management unit in a wired or wireless manner.

[0014] Optionally, the key acquisition and distribution device is implemented through a multi-layer circuit.

[0015] Optionally, the key acquisition and distribution device sends a command line to the load management terminal through a pre-set communication protocol to realize the acquisition and distribution of the key.

[0016] Optionally, the first remote communication unit and the second remote communication unit are connected through a radio communication protocol.

[0017] Optionally, the interaction unit is a capacitive touch screen.

[0018] Optionally, the key remote management unit is used for receiving an encryption key.

[0019] The key acquisition and distribution device is used for decrypting and storing the encryption key, and the decrypted key is stored in a storage chip built in the key acquisition and distribution device.

[0020] Optionally, the key remote management unit performs identity verification through a key infrastructure.

[0021] Implementing the embodiments of the present application will have the following beneficial effects:

[0022] 1. Significantly improve convenience: The key acquisition and distribution device is designed with an innovative compressed small volume electrical structure and a precise multi-layer PCB circuit, effectively reducing the volume of internal components and eliminating dead space, making the overall device smaller and more portable, greatly facilitating transportation and carrying. In addition, the built-in high-efficiency battery system eliminates the need for additional power supply equipment, further improving the convenience of use. More importantly, the remote communication capability between the control end and the key distribution end makes remote debugging of the terminal possible, greatly improving work efficiency and operational flexibility.

[0023] 2. Efficiently save resources and improve work efficiency: The key acquisition and distribution device adopts advanced LORA remote communication technology and combines RS485 communication protocol to send accurate command lines to the terminal to realize the acquisition and distribution of keys. This design not only avoids the occupation of power grid resources, but also only needs one operator to remotely complete the entire operation process, significantly reducing the dependence on power resources and human resources, thereby realizing efficient use of resources and significant improvement of work efficiency.

[0024] 3. Strengthen security and convenience: By remotely acquiring, controlling and unlocking the terminal, the key acquisition and distribution device ensures the security during the debugging process of the load management terminal. At the same time, the operation of unlocking the terminal becomes more efficient and convenient, which not only ensures the smooth progress of the debugging process, but also effectively improves the security and reliability of the overall system. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Among them:

[0027] Figure 1 It is a schematic diagram of the key acquisition and distribution device in an embodiment;

[0028] Figure 2 It is a communication schematic diagram of the key acquisition and distribution device in an embodiment;

[0029] Figure 3A It is a schematic diagram of the layered circuit design of the key acquisition and distribution device in an embodiment;

[0030] Figure 3B It is a schematic diagram of the layered PCB design of the key acquisition and distribution device in an embodiment;

[0031] Figure 4 It is a schematic diagram of the main structure of the key acquisition and distribution device in an embodiment. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0033] In the current power grid construction site environment, the existing related debugging devices are generally bulky, lack of portability in design, and are not easy to fold or quickly disassemble, which brings great inconvenience to on-site debugging work. Especially when the load management terminal to be debugged is located in an outdoor environment, the debugging personnel often need to carry a large number of heavy equipment, which not only consumes physical strength, but also prolongs the transportation and preparation time. In addition, the complexity and unpredictability of the outdoor environment further increase the difficulty of carrying and transporting, thereby affecting the efficiency and progress of the debugging work.

[0034] Currently, in the process of key acquisition and distribution for load management terminals, a large amount of power resources and human resources are often needed. This is mainly because traditional key distribution methods usually involve complex network communication protocols and data processing procedures, which often require a large amount of computing resources and network resources. At the same time, due to the lack of efficiency in existing key distribution mechanisms, the entire distribution process takes a long time and is limited in efficiency. This not only increases the consumption of power and human resources, but also leads to a significant increase in the cost of related detection work.

[0035] Moreover, in the current security unlocking process of load management terminals, it is usually necessary to connect the key remote management unit and go through a series of complex command issuance and operations to successfully acquire and distribute the key. This process is not only lengthy and tedious, but also prone to errors. At the same time, since the entire unlocking process relies on network communication, it is often affected by unstable factors such as network delay and packet loss in actual operation, resulting in low unlocking efficiency. In addition, since the unlocking process involves the transmission and processing of sensitive information, the security and confidentiality of the information need to be considered, which undoubtedly increases the complexity and difficulty of the entire process.

[0036] To solve the above problems, a new, portable, and efficient key acquisition and distribution device is provided in an embodiment of the present application. The key acquisition and distribution device should have the characteristics of small size, easy to carry, low power consumption, and high efficiency, and can support remote communication and fast and safe unlocking functions. By using advanced microcontroller technology and wireless communication protocols, remote debugging and key distribution for load management terminals can be realized, thereby significantly improving work efficiency and reducing resource consumption. At the same time, by strengthening the information security protection mechanism, the security and confidentiality of sensitive information in the entire process can be ensured.

[0037] The key acquisition and distribution device provided by the embodiments of the present application is described in detail below, referring to Figure 1 . Figure 1 A schematic diagram of the key acquisition and distribution device in one embodiment is shown in FIG. 1. As shown in Figure 1The key acquisition and distribution device shown comprises a control end 10 and a key distribution end 20; the control end 10 comprises a first microcontroller unit 101, a key remote management unit 102, an interaction unit 103 and a first remote communication unit 104; the first microcontroller unit 101 is connected with the interaction unit 103, the key remote management unit 102 and the first remote communication unit 104 respectively.

[0038] The key distribution end 20 comprises a second microcontroller unit 106, a communication unit 107, a load management terminal 108 and a second remote communication unit 105; the second microcontroller unit is connected with the communication unit 107 and the second remote communication unit 105 respectively, and the communication unit 107 is connected with the load management terminal 108.

[0039] The control end 10 is connected with the key distribution end 20 through the first remote communication unit 104 and the second remote communication unit 105.

[0040] The communication process of the key acquisition and distribution device provided by the embodiment of the application is described in detail below, and reference is made to Figure 2 . Figure 2 The communication diagram of the key acquisition and distribution device in one embodiment is shown in the figure. Figure 2 The control end 10 of the key acquisition and distribution device shown further comprises a built-in first multi-protection power supply module 109, which provides 3.3V voltage for the first microcontroller unit 101, 5V voltage for the interaction unit 103 and 12V voltage for the first remote communication unit 104 respectively. Figure 2 The remote control end 10 of the key acquisition and distribution device shown further comprises a built-in second multi-protection power supply module 110, which provides 5V voltage for the second microcontroller unit 101, 3.3V voltage for the communication unit 107 and 12V voltage for the second remote communication unit 105 respectively. It should be noted that the first multi-protection power supply module 109 and the second multi-protection power supply module 110 can be built-in batteries without the need for additional power supply equipment, so that the key acquisition and distribution device is smaller in size and is convenient for transportation and carrying.

[0041] As shown in the figure Figure 2 The key acquisition and distribution device provided by the embodiment of the application takes the first microcontroller unit 101 and the second microcontroller unit 106 as the core controller, which is responsible for the operation of each electronic component, data processing (including calculation, editing, sending and receiving data analysis).

[0042] The key remote management unit 102 is a remote server or a password machine. The first microcontroller unit 101 is connected with the key remote management unit 102 through wired or wireless mode to obtain the key.

[0043] In terms of communication layer, the communication unit 107 of the key acquisition and distribution device provided by the embodiments of the present application can establish a connection with the load management terminal 108 through the RS485 communication module integrated with the SP3485 chip. A specially designed RS485 communication chip is used internally, and a precise circuit design is supplemented to ensure the accuracy, stability and strong anti-interference of the communication process.

[0044] To improve user experience, the key acquisition and distribution device provided by the embodiments of the present application is configured with a capacitive touch screen as the interaction unit 103 to provide an intuitive function selection and information display interface for the operator. The screen is carefully designed, made of high-grade materials and special processes to ensure that it still has sufficient brightness, clear display effect and excellent durability in outdoor environments.

[0045] After the key acquisition and distribution device is connected with the load management terminal through the 485 line, the operator can easily select various functions through the touch screen. The key acquisition and distribution device then remotely sends instructions to the key distribution end 20 through the built-in first remote communication unit, and the key distribution end 20 sends corresponding data commands to the load management terminal. The key acquisition and distribution device reads, recognizes and analyzes the information returned from the load management terminal, and then sends the analysis result to the control end 10 through the second remote communication unit and displays it intuitively on the screen.

[0046] It should be noted that the first remote communication unit and the second remote communication unit can perform remote communication through LORA (Long Range Radio).

[0047] To meet the remote use requirements, the key acquisition and distribution device control end 10 and the key distribution end 20 are both equipped with LORA remote transmission modules to achieve a communication distance of several kilometers. To improve the electrical stability of the key acquisition and distribution device, comprehensive electrical protection measures are designed for the power supply, signals and other parts during the PCB design process to ensure that the equipment can operate stably in various outdoor environments. At the same time, by using a special multi-layer PCB circuit design, the size of the equipment is successfully controlled within a reasonable range. See Figure 3A and Figure 3B , Figure 3A is a schematic diagram of the layered circuit design of the key acquisition and distribution device in one embodiment. Figure 3B is a schematic diagram of the layered PCB design of the key acquisition and distribution device in one embodiment. The key acquisition and distribution device provided by the embodiments of the present application uses a special multi-layer PCB circuit design to successfully control the size of the equipment within a reasonable range while meeting the requirements of high performance, high reliability and miniaturization. The multi-layer PCB has higher wiring density, better electromagnetic compatibility and lower noise interference.

[0048] The signal layer is the primary layer in a circuit used for transmitting signals. Figure 3A In this context, the signal layer contains the signal transmission paths for MCU (microcontroller unit) control signals, communication interface signals (such as RS485, remote communication, etc.), and other functional modules. The design of these signal layers needs to fully consider signal integrity, anti-interference capability, and transmission speed.

[0049] The power layer primarily provides a stable power supply, while the ground layer serves as a common reference potential. Figure 3A In this design, the power and ground planes are tightly coupled to improve power supply stability and reduce electromagnetic interference. A well-planned power and ground plane layout can effectively reduce system grounding impedance and common-mode interference.

[0050] The inner electric layer is primarily used to provide signal shielding and enhance electromagnetic compatibility. Figure 3A In this design, the inner electrical layer is positioned adjacent to the signal layer, and a large copper film is used to provide shielding for the signal layer in order to reduce crosstalk and electromagnetic radiation between signal layers.

[0051] Impedance control layers are designed to ensure the integrity and stability of signal transmission. Figure 3A In this process, by adjusting parameters such as the width and thickness of the line and the thickness of the dielectric, precise impedance control can be achieved, thereby reducing signal reflection and crosstalk.

[0052] Figure 3B This diagram illustrates the layered PCB design of a key acquisition and distribution device. It shows that the device employs a multi-layered PCB structure, including signal layers, power layers, ground layers, and internal power layers. These layers are stacked together to form a compact and efficient circuit layout. Figure 3B In this design, the signal layer is positioned adjacent to the inner power layer, utilizing the large copper film of the inner power layer to provide shielding for the signal layer. This design helps reduce crosstalk and electromagnetic radiation between signal layers, improving circuit performance and stability. Figure 3B The power and ground planes are designed with a tightly coupled structure, increasing capacitance and raising the resonant frequency between the power and ground planes by selecting a smaller dielectric thickness. This layout helps to provide a stable power supply and reduce electromagnetic interference.

[0053] In multilayer PCB design, interlayer connections are crucial for enabling signal transmission between different layers. Figure 3B In this process, interlayer conductive connections are achieved through vias, through-holes, or dielectric filling. These connections ensure the continuity and stability of signal transmission paths between different layers. Figure 3B In this circuit, the heat dissipation layout and heat dissipation hole design can effectively dissipate heat from the circuit board and prevent overheating from affecting the circuit.

[0054] By adopting a special multi-layer PCB circuit design, the key acquisition and distribution device successfully controls the device size within a reasonable range, while meeting the requirements of high performance, high reliability and miniaturization. This design not only improves the wiring density and electromagnetic compatibility of the circuit, but also reduces noise interference and ground impedance, providing a strong guarantee for the stable operation of the key acquisition and distribution device.

[0055] Further, the software code integrated by the key acquisition and distribution device provided in the embodiments of the present application supports MCU driving and RS485 communication, and also adopts a real-time operating system design to ensure efficient operation of the application layer software. The RS485 communication process with the terminal is smooth and efficient.

[0056] In terms of security, the key acquisition and distribution device provided in the embodiments of the present application can perform decryption operations on the terminal according to a pre-set communication protocol. By connecting the key remote management unit, the device can remotely acquire and control the key and complete the encryption and decryption process. This process involves identity authentication, secure channel establishment, key distribution, decryption and storage, etc. The key acquisition and distribution device provided in the embodiments of the present application will cooperate with identity verification to ensure that all parties involved in the key distribution process have credibility. The device and the key remote management unit usually use a key infrastructure for identity verification, and each terminal has a pair of digital certificates signed by a CA (certificate authority). The digital certificate contains the public key of the device and guarantees the authenticity of the public key through the signature of the CA.

[0057] The key acquisition and distribution device provided in the embodiments of the present application and the key remote management unit establish a secure communication channel through the TLS (transport layer security, transport layer security) handshake process. During the handshake, both parties use a special protocol to encrypt key material and securely negotiate a shared session key for subsequent communication encryption. After the secure channel is established, the key remote management unit generates a new symmetric key (such as an AES key) for the device to use in subsequent decryption and encryption operations. After receiving the encrypted key, the device decrypts and stores it. To ensure the security of the key, the decrypted key is stored in the secure storage chip of the hardware security module (HSM) to prevent it from being illegally acquired.

[0058] The embodiments of the present application also provide a structural diagram of the key acquisition and distribution device, which is shown in Figure 4 . Figure 4 is a schematic diagram of the main structure of the key acquisition and distribution device in one embodiment. As Figure 4The shown respectively gives the control end 10 of the key acquisition and distribution device, the key distribution end 20, and the RS485 interface of the key distribution end 20, power button and direct current (DC) power supply port schematic diagram.The control end 10 is the core management and monitoring part of the key acquisition and distribution device, responsible for receiving the data, analysis results and state information sent by the key distribution end 20, and sending control instructions and configuration parameters to the key distribution end 20.The control end 10 is equipped with a high-definition display screen for displaying the state information, key distribution progress and other key data of the device.The display screen supports touch operation, which is convenient for operators to visually operate and monitor.

[0059] The control end 10 can provide multiple communication interfaces, including Ethernet interface, USB (universal serial bus) interface and serial port, etc., for data exchange and communication with the key distribution end 20, key remote management unit and other devices.

[0060] The key distribution end 20 is a key component of the key acquisition and distribution device, responsible for key generation, distribution and storage, etc.It receives the instructions of the control end 10, executes the corresponding key distribution task, and returns the results to the control end 10.The key distribution end 20 is equipped with an RS485 interface for communication with the load management terminal.The RS485 interface uses differential signal transmission method, which has the advantages of strong anti-interference ability and long transmission distance.Through the RS485 interface, the key distribution end 20 can receive the data sent by the load management terminal and send keys and control instructions.The RS485 interface is usually equipped with protection circuit and isolation measures to prevent interface damage and electrical interference.At the same time, the RS485 interface supports hot plug function, which is convenient for equipment maintenance and upgrade.The key distribution end 20 is also provided with a power button for controlling the startup and shutdown of the device.The power button is designed similarly to the control end 10, with the functions of startup and long press shutdown.

[0061] The key distribution end 20 uses DC power supply port for power supply to ensure that the device can run stably in different voltage environments.The design of DC power supply port is similar to that of control end 10, with anti-reverse connection and overcurrent protection functions.

[0062] In addition to the above interfaces and buttons, the key distribution end 20 can also be equipped with other interfaces and buttons, such as reset button, indicator light, etc.The reset button is used to restart the device when it fails;the indicator light is used to display the running state and error information of the device.

[0063] Figure 4As a schematic diagram of the main structure of the key acquisition and distribution device in one embodiment, it shows the control end 10, the key distribution end 20 and their related interfaces, buttons and power supply ports. These components and interfaces together constitute the core part of the key distribution system, ensuring the stable operation and efficient operation of the system. Through the use of advanced hardware design and software, the key acquisition and distribution device can provide users with safe, reliable and convenient key distribution and management services.

[0064] The key acquisition and distribution device provided by the embodiments of the present application effectively reduces the volume of internal components and eliminates dead space through innovative compact electrical structure design and precise multi-layer PCB circuit design, making the overall device more compact and portable, greatly facilitating transportation and carrying. In addition, the built-in high-efficiency battery system of the device eliminates the need for additional power supply equipment, further improving the convenience of use. More importantly, the remote communication capability between the control end and the key distribution end makes remote debugging of the terminal possible, greatly improving work efficiency and operational flexibility.

[0065] The above disclosure is only the preferred embodiment of the present application, and of course cannot limit the scope of the rights of the present application, so equivalent changes made in accordance with the claims of the present application are still within the scope covered by the present application.

Claims

1. A key acquisition distribution apparatus characterized by comprising: The key acquisition and distribution device comprises a control end and a key distribution end. The control end comprises a first microcontroller unit, an interaction unit, a key remote management unit and a first remote communication unit, and the first microcontroller unit is connected with the interaction unit, the key remote management unit and the first remote communication unit respectively. The key distribution end comprises a second microcontroller unit, a communication unit, a load management terminal and a second remote communication unit, and the second microcontroller unit is connected with the communication unit and the second remote communication unit respectively, and the communication unit is connected with the load management terminal. The control end and the key distribution end communicate through the first remote communication unit and the second remote communication unit.

2. The key acquisition and distribution apparatus of claim 1, wherein The control end further comprises a built-in first multi-protection power supply module, which supplies power for the first microcontroller unit, the interaction unit and the second remote communication unit respectively.

3. The key acquisition and distribution apparatus of claim 1, wherein The key distribution end further comprises a built-in second multi-protection power supply module, which supplies power for the second microcontroller unit, the communication unit and the first remote communication unit respectively.

4. The key acquisition and distribution apparatus of claim 1, wherein The first microcontroller unit obtains a key from the key remote management unit through wired or wireless mode.

5. The key acquisition and distribution apparatus of claim 1, wherein The key acquisition and distribution device is realized through multi-layer circuit.

6. The key acquisition and distribution apparatus of claim 1, wherein The key acquisition and distribution device sends a command line to the load management terminal through a pre-set communication protocol to realize acquisition and distribution of the key.

7. The key acquisition and distribution apparatus according to any one of claims 1 to 6, wherein The first remote communication unit and the second remote communication unit are connected through a wireless radio communication protocol.

8. The key acquisition and distribution apparatus according to any one of claims 1 to 6, wherein The interaction unit is a capacitive touch screen.

9. The key acquisition and distribution apparatus according to any one of claims 1 to 6, wherein The key remote management unit is used for receiving an encrypted key. The key acquisition and distribution device is used for decrypting and storing the encrypted key, and the decrypted key is stored in a storage chip built in the key acquisition and distribution device.

10. The key acquisition and distribution apparatus according to any one of claims 1 to 6, wherein The key remote management unit performs identity authentication through a key infrastructure.

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