Terminal device for efficient operation and maintenance of power distribution network and method for implementing efficient operation and maintenance of power distribution network

Abstract

The application provides a terminal device for efficient operation and maintenance of a power distribution network and an efficient operation and maintenance implementation method of the power distribution network. The terminal device comprises a main control module, a communication module, a storage module, a target code acquisition module, an information table processing module and a display module. The communication module is used for acquiring a third information table containing only device information from a power grid system according to a target code acquired by the target code acquisition module. The storage module is used for saving a second information table containing only device names. The main control module is used for sending the second and third information tables to the information table processing module for splicing processing. The display module is used for displaying the information table obtained through the splicing processing. According to the application, the information without a subject is obtained by sending the target code to the power grid system, so that the maintenance personnel can obtain the required data at any time on the spot under the premise of ensuring the safety of the power grid information, without returning to the internal network or being communicated by dispatchers, and the maintenance work can be started in time no matter where the maintenance personnel are, so that the operation and maintenance efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of power grid operation and maintenance, and particularly relates to a terminal device for efficient operation and maintenance of a distribution network and an efficient operation and maintenance implementation method for a distribution network. BACKGROUND

[0002] Electric power is the basis of the national economy and is crucial to the development of a country, and it is of paramount importance to ensure the safe and effective operation of the power system. Modern distribution networks have complex topological relationships, a large number of nodes, and are densely packed, and in the actual operation process, faults inevitably occur due to external damage, extreme weather, and equipment aging. Fault repair is an important task in the maintenance and management of distribution networks, and power supply departments have been trying to use various methods to improve repair efficiency and shorten repair time to reduce the loss of the national economy caused by power failure.

[0003] Since power grid information involves national security and is classified information, distribution information and state information of the power grid cannot be published on public communication networks. Information transmission, even if the information is encrypted before transmission, still has a certain risk of leakage. Therefore, in order to ensure the safety of the power grid, power grid equipment information cannot be transmitted on public networks and can only be viewed on the internal network of the power grid. Operation and maintenance personnel must obtain defect records, fault records, and switch opening and closing information on the line through internal network computers. If field rescue personnel need related information of the power grid, they can only communicate and interact with dispatch personnel through telephone and short message, which easily leads to information receiving errors and repair delays. SUMMARY

[0004] Therefore, the present application aims to solve the problem that the existing operation and maintenance method in which field rescue personnel communicate with dispatch personnel through telephone and short message to obtain equipment information easily leads to information receiving errors and repair delays.

[0005] To solve the above technical problems, the present application provides the following technical solutions:

[0006] In a first aspect, the present application provides a terminal device for efficient operation and maintenance of a distribution network, comprising: a main control module, a communication module, a storage module, a target code acquisition module, an information table processing module, and a display module.

[0007] The target code acquisition module is configured to acquire a target code corresponding to the device, and the target code is used to identify different devices.

[0008] The communication module is configured to acquire a third information table from the power grid system according to the target code, the third information table is obtained according to the device information column of a first information table saved locally by the power grid system, the first information table further comprises a device name column, the first information table is generated according to the device information corresponding to the device, and the target code is associated with the first and third information tables through the corresponding relationship with the device.

[0009] The storage module is configured to store a second information table, which is obtained according to the device name column of the first information table and is also associated with the corresponding target code;

[0010] The information table processing module is configured to splice the second and third information tables into a fourth information table;

[0011] The main control module is configured to forward the target code obtained by the target code to the communication module and the storage module, so as to extract the associated second and third information tables; is also configured to forward the second and third information tables to the information table processing module for splicing processing; and is also configured to forward the fourth information table obtained after processing to the display module;

[0012] The display module is configured to display the device information in the fourth information table.

[0013] Further, the system further comprises an identity recognition module, a signature module and a privacy module, wherein the privacy module is a trusted execution environment and locally stores user identity information and a terminal private key associated with each other;

[0014] The identity recognition module is configured to perform identity verification according to the local user identity information after obtaining the current user identity information;

[0015] The privacy module is configured to provide the terminal private key to the signature module after verification;

[0016] The signature module is configured to perform signature processing on the target code obtained by the main control module by using the terminal private key and return the target code to the main control module, so that the main control module obtains the third information table from the power grid system according to the target code after signature processing.

[0017] Further, the privacy module also stores a power grid public key, and the power grid system stores a terminal public key and a power grid private key;

[0018] The privacy module is configured to perform encryption processing on the target code by using the power grid public key and send the target code to the signature module for signature processing;

[0019] The power grid system is configured to perform identification and decryption processing on the target code by using the terminal public key and the power grid private key in sequence, and search for the associated third information table locally according to the target code after processing.

[0020] Further, the system further comprises a switch module;

[0021] The switch module is configured to turn on or turn off the communication relationship between the communication module and the storage module and the main control module according to the instruction of the main control module, and keep the communication relationship between the main control module and the communication module and the storage module in opposite states.

[0022] Further, the system further comprises an update module;

[0023] The update module forwards user update commands to the main control module, enabling the main control module to update the fourth information table. The update process includes:

[0024] Determine whether the target code is associated with the fourth information table. If so, send the fourth information table to the information table processing module for interception and deletion, and obtain the updated second information table. At the same time, retrieve the third information table from the power grid system and forward it to the information table processing module to merge it with the updated second information table. Save the merged information table as the updated fourth information table.

[0025] Furthermore, it also includes: a timing module;

[0026] The timing module provides the time after the fourth information table is generated to the main control module so that the main control module can delete the fourth information table after the time exceeds the set time.

[0027] Furthermore, it also includes: a positioning module;

[0028] The positioning module is used to send the current location information to the main control module, so that the main control module can send the current location information and the target code together to the power grid system for location matching and judgment. Specifically, the location matching and judgment involves the power grid system determining whether the current location information matches the location information of the device corresponding to the target code.

[0029] Secondly, the present invention provides a method for achieving efficient operation and maintenance of a power distribution network, including:

[0030] Obtain the target code corresponding to the device; the target code is used to identify different devices.

[0031] The target code obtains a third information table from the power grid system. The third information table is obtained from the device information column of the first information table stored locally by the power grid system. The first information table also includes a device name column. The first information table is generated based on the device information corresponding to the device. The target code is associated with the first and third information tables through the correspondence with the device.

[0032] A local second information table is generated based on the device name column of the first information table, and the second information table is also associated with the corresponding target code;

[0033] Locally, combine the second and third information tables into a fourth information table;

[0034] Device information is obtained based on the fourth information table.

[0035] In summary, this invention provides a terminal device and method for efficient operation and maintenance of distribution networks. The terminal device includes a main control module, a communication module, a storage module, a target code acquisition module, an information table processing module, and a display module. The communication module retrieves a third information table containing only device information from the power grid system based on the target code obtained by the target code acquisition module. The storage module stores a second information table containing only device names. The main control module sends the second and third information tables to the information table processing module for merging. The display module displays the merged information table. This invention obtains subjectless information by sending target codes to the power grid system, enabling maintenance personnel to obtain necessary data on-site at any time while ensuring power grid information security. This eliminates the need to return to the internal network or rely on dispatchers for communication, allowing maintenance work to begin promptly from anywhere, significantly improving operation and maintenance efficiency. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a structural block diagram of a terminal device for efficient operation and maintenance of power distribution networks provided in an embodiment of the present invention;

[0038] Figure 2 This is a flowchart illustrating the signing process for target code provided in an embodiment of the present invention.

[0039] Figure 3 A flowchart illustrating the workflow of a terminal device for efficient operation and maintenance of a power distribution network provided in this embodiment of the invention;

[0040] Figure 4 A flowchart illustrating the workflow of a terminal device for efficient operation and maintenance of power distribution networks based on a trusted execution environment, as provided in this embodiment of the invention.

[0041] Figure 5 This is a structural block diagram of a terminal device for efficient operation and maintenance of a power distribution network provided in another embodiment of the present invention;

[0042] Figure 6 A flowchart of the workflow of a terminal device for efficient operation and maintenance of power distribution networks based on a trusted execution environment, provided in another embodiment of the present invention. Detailed Implementation

[0043] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0044] Electricity is the foundation of the national economy and is crucial to a country's development. Ensuring the safe and efficient operation of the power system is of paramount importance. Modern power distribution networks are characterized by complex topologies, a large number of nodes, and high density. In actual operation, faults are inevitable due to external damage, extreme weather, equipment aging, and other factors. Fault repair is an important task in power distribution network maintenance and management. Power supply departments have been continuously exploring various methods to improve maintenance efficiency and shorten repair time to reduce economic losses caused by power outages.

[0045] Because power grid information involves national security, it is classified as confidential. Power grid distribution and status information cannot be published on public communication networks. Even with encryption, information transmission still carries a risk of leakage. Therefore, for power grid security, power grid equipment information will not be transmitted on public networks; it can only be viewed within the power grid's internal network. Maintenance personnel must access information such as line defect records, fault records, and switch opening and closing status via intranet computers. On-site emergency response personnel, if they need relevant power grid information, can only communicate with dispatchers via telephone and SMS, which can easily lead to information reception errors and maintenance delays.

[0046] Based on this, the present invention provides a terminal device for efficient operation and maintenance of power distribution networks and a method for achieving efficient operation and maintenance of power distribution networks.

[0047] The following is a detailed description of an embodiment of a terminal device for efficient operation and maintenance of power distribution networks according to the present invention.

[0048] Please see Figure 1 This embodiment provides a terminal device for efficient operation and maintenance of power distribution networks, including: a main control module, a communication module, a storage module, a target code acquisition module, an information table processing module, and a display module.

[0049] The specific equipment for each module is described below.

[0050] The target code acquisition module is used to acquire the target code corresponding to the device, and the target code is used to identify different devices.

[0051] It should be noted that the equipment information stored in the power grid system exists in the form of a list. Each device has its own target code. Devices can be low-voltage poles, high-voltage poles, transformers, substations, etc. There are multiple devices at one device. For example, a substation may have transformers, circuit breakers, voltage transformers, current transformers, humidity sensors, temperature sensors, etc. The correspondence between each device and its target code exists only in the power grid system. There is no such correspondence between external devices or even terminal devices.

[0052] The communication module is used to obtain a third information table from the power grid system based on the target code. The third information table is obtained based on the device information column of the first information table stored locally by the power grid system. The first information table also includes a device name column. The first information table is generated based on the device information corresponding to the device. The target code is associated with the first and third information tables through the correspondence with the device.

[0053] It should be noted that the power grid system has multiple first information tables. Each first information table corresponds to one device. The first information table contains a name column and an information column, as shown in Table 1. The name column mainly contains the device name and the corresponding defect record in the device. The information column includes the current status of the device and the corresponding defect record, as well as historical faults (abnormalities). Historical faults can be the latest fault of the corresponding device, or they can be several or all faults from the past.

[0054] Table 1 First Information Table

[0055] Name Current status Historical faults (anomalies) 10 kv main transformer Switching on Switching on (malfunction) Breaker A Switching on - Temperature sensor A 38℃ Disconnection of secondary circuit (fault) … … … Defect record Site lighting not working …

[0056] Based on Table 1 above, the third information table is as follows:

[0057] Table 2 Third Information Table

[0058] Switching on Switching on (malfunction) Switching on - 38℃ Disconnection of secondary circuit (fault) … … Site lighting not working …

[0059] The storage module is used to store a second information table, which is obtained based on the device name column of the first information table and is also associated with the corresponding target code.

[0060] It should be noted that, as described in Table 3, the terminal device stores a second information table with only a name column. Each first information table corresponds to a target code. Similarly, each second information table corresponds to a target code. The second information table of the terminal device is synchronized with the first information table in the power grid system in the intranet (or via a data line) so that the name columns of the first and second information tables corresponding to the same target code are the same.

[0061] Table 3 Second Information Table

[0062] Name 10 kv main transformer Breaker A Temperature sensor A … Defect record

[0063] In addition, the storage module also stores the mapping between the second information table and the target code. Space is also reserved for other storage needs of the terminal device.

[0064] The information table processing module is used to combine the second and third information tables into a fourth information table.

[0065] It should be noted that the information table processing module mainly performs merging or truncation of information tables. For example, by merging the second and third information tables, a complete first information table (i.e., the fourth information table) can be obtained locally. The local first information table can be stored in the storage module, which reserves a special storage space for storing temporary data, such as the extracted second information table and the local first information table.

[0066] The main control module is used to forward the target code obtained from the target code to the communication module and the storage module in order to extract the associated second and third information tables; it is also used to forward the second and third information tables to the information table processing module for splicing processing; and it is also used to forward the processed fourth information table to the display module.

[0067] It should be noted that, in order to further ensure the security of power grid information, the terminal device can also be equipped with an identity recognition module, a signature module and a privacy module. The privacy module is a trusted execution environment and locally stores the interrelated user identity information and terminal private key.

[0068] The privacy module stores the terminal's private key and user identity information, while non-privacy information such as the power grid public key can be stored in ordinary memory. This embodiment utilizes a Trusted Execution Environment (TEE) to implement the privacy module. Those skilled in the art should understand that a TEE refers to a trusted execution environment based on a chip-level trusted foundation, which is not subject to any external control, not even at the system level itself. This ensures the privacy and security of data within the TEE and the trustworthiness of its operation. Since the terminal's private key and identity information are small in size, they can be directly stored in the TEE, inaccessible externally, even to the terminal itself, thus guaranteeing data security.

[0069] This embodiment associates user identity information with the terminal private key within a trusted execution environment (TEA). The TEA only obtains the terminal private key when it reads the corresponding identity information; otherwise, it cannot obtain it. Both the signature module and the identity recognition module run within the TEA. Because the TEA performs runtime memory verification on the running software, it ensures the security of the running software. Figure 2As shown, the signature module is used to sign the target code using the terminal's private key, the identity recognition module is used to obtain identity information, and the identity recognition module verifies the identity information in the trusted execution environment after obtaining the identity information. After receiving the target code, the signature module performs signature calculation in the trusted execution environment. If the aforementioned identity information is consistent with the identity information in the trusted execution environment, it means that the recognition is correct, and the terminal private key associated with the identity information is submitted to the signature module, which is also running in the trusted execution environment, so that it can sign the target code. Otherwise, the recognition fails.

[0070] This method utilizes the maintenance personnel's identity information to initiate data requests to the power grid system. This identity information is stored in a trusted execution environment (TEA), and the verification process takes place within the TEA. Only with correct identity information can the terminal's private key be obtained, enabling the data request to the power grid system. This prevents unauthorized use of lost or improperly deregistered terminal devices, thus protecting data security and ensuring the integrity of power grid system communications.

[0071] In addition, this terminal device is also equipped with a switch module. Both the communication module and the storage module are coupled to the switch module. The switch module is connected to the main control module to turn the communication relationship between the communication module, the storage module, and the main control module on or off according to the instructions of the main control module. When the switch module turns the communication module on and the main control module on, it turns off the communication relationship between the storage module and the main control module. When the switch module turns on, it turns on the communication relationship between the storage module and the main control module on, and turns off the communication relationship between the communication module and the main control module. The switch module can be program code integrated into the main control module, which directly controls the communication connection between the communication module, storage module, and the main control module based on this program code. Alternatively, the switch module can be an electronic component connected to and controlled by the main control module, such as an optocoupler switch. In this case, an optocoupler A can be connected in series on the communication line between the communication module and the main control module, and an optocoupler B can be connected in series on the communication line between the storage module and the main control module. Both optocoupler A and optocoupler B are controlled by the main control module. When optocoupler A is on, optocoupler B is off, and when optocoupler B is on, optocoupler A is on. This mutual exclusion relationship between the two optocouplers is achieved through the control of the main control module. In actual operation, it can also be implemented through circuit structure, as long as the states of optocoupler A and optocoupler B are always opposite. Furthermore, the switch module can also be implemented using a single-pole double-throw switch, with the operation of this single-pole double-throw switch controlled by the main control module.

[0072] The main control module sends corresponding instructions to the switching module as needed. For example, when it receives the third information table returned by the power grid system, it sends an instruction to the switching module to turn off the communication module and turn on the storage module. In the scenario where the switching module is implemented by the aforementioned optocoupler method, even if optocoupler A is turned off, optocoupler B is turned on. When an update request is received, it sends an instruction to the switching module to turn on the communication module and turn off the storage module in order to connect to the network for data update.

[0073] The display module is used to display device information in the fourth information table.

[0074] like Figure 3 As shown, the method for achieving efficient operation and maintenance of the power distribution network using this terminal equipment includes the following steps:

[0075] S1. After the maintenance personnel arrive at the site, they use a terminal device to scan the identification code on the target device to obtain the target code; at this time, the communication module is connected, but the storage module is not connected.

[0076] S2. The terminal device signs the target code and sends it to the power grid system;

[0077] S3. Receive the third information table (as shown in Table 3) returned by the power grid system, which does not contain a name column in the first information table, and then disconnect the network; at this time, the communication module is disconnected and the storage module is connected;

[0078] S4. The terminal device extracts the second information table based on the target code;

[0079] S5. Combine the second information table with the third information table obtained in step S3 to obtain the complete local first information table.

[0080] like Figure 2 and Figure 4 As shown, in step S2, the terminal device obtains and identifies identity information through the identity recognition module. If the identity information is correctly identified, the process proceeds to step S2; otherwise, it ends. The specific implementation of this step has been mentioned earlier: after receiving the user's identity information, the identity recognition module runs in a trusted execution environment (TEA). Within the TEA, the identity information is identified. If the identity information is correctly identified, the TEA submits the terminal's private key to the signature module, which signs the target code. Then, the terminal device sends the code to the power grid system via the communication module, thus executing step S2. Here, the user's identity information can be any one or more combinations of the user's fingerprint, facial, and voiceprint information.

[0081] In step S2, the terminal device signs the target code using its private key and sends it to the power grid system. The power grid system verifies the identity of the terminal device using its public key. After successful authentication, it retrieves the first information table corresponding to the target code and returns the retrieved third information table (which does not contain a name column) to the terminal device. In this embodiment, the third information table does not contain a header.

[0082] Alternatively, in step S2, the terminal device first encrypts the target code using the power grid public key, then signs the encrypted data using the terminal private key and sends it to the power grid system 3; the power grid system 3 verifies the identity of the terminal device using the terminal public key, and after successful identity verification, decrypts the target code using the power grid private key. Subsequently, it retrieves the first information table corresponding to the target code and returns the third information table, which does not contain a name column, to the terminal device.

[0083] In addition, the terminal device in this embodiment can also be equipped with an update module. This update module forwards the user's update command to the main control module, so that the main control module can update the fourth information table. The update module can obtain the user's update command in the form of an update button. Specifically, when the terminal device receives an update request, it executes method A; when the user presses the update button, the terminal device receives the update request.

[0084] When the target code is obtained again, compare whether the target code is the same as the previous target code (i.e., determine whether the local first information table exists). If it is, execute method A, that is, update directly. Otherwise, delete the local first information table, then connect to the network and repeat steps S2-S5.

[0085] Method A specifically involves extracting the second information table from the local first information table, deleting the local first information table, then connecting to the network and repeating steps S2, S3, and S5. At this point, a flag indicating "update" is added to the information sent to the power grid system in step S2, allowing the power grid system to recognize that an update operation is in progress. The power grid system can store the corresponding first information table separately, enabling it to directly retrieve the relevant first information table from this separate storage area during subsequent updates, thus improving update efficiency.

[0086] This embodiment provides a terminal device for efficient operation and maintenance of power distribution networks. It obtains corresponding information by sending target codes to the power grid system. The power grid system returns subjectless information, meaning that even if a third party obtains this data, they will not know who it corresponds to or how to use it. Therefore, this data is useless to third parties, preventing the leakage of confidential information due to data interception. In other words, it enables maintenance personnel to obtain the necessary data on-site at any time while ensuring power grid information security, without needing to return to the internal network or rely on dispatchers. Maintenance work can begin promptly regardless of location, greatly improving operation and maintenance efficiency. Furthermore, maintenance personnel can update data on-site at any time, ensuring they receive accurate and up-to-date equipment information, thus avoiding maintenance delays due to incorrect information.

[0087] The above is a detailed description of one embodiment of a terminal device for efficient operation and maintenance of a power distribution network according to the present invention. The following is a detailed description of another embodiment of a terminal device for efficient operation and maintenance of a power distribution network according to the present invention.

[0088] Please see Figure 5 This embodiment provides a terminal device for efficient operation and maintenance of power distribution networks. Compared to the terminal device in the previous embodiment, this embodiment further includes a timing module.

[0089] Among them, such as Figure 6 As shown, the main control module deletes the local first information table when the target code acquisition time reaches a set value, based on the timing module's timing time. This set value can be determined by technicians according to actual conditions, such as 24 hours. In this case, after maintenance personnel scan the identification code with a terminal device, they will obtain the local first information table. The timing module then starts timing, and after 24 hours, it deletes the local first information table, thus achieving automatic and timely deletion of local data, further ensuring data security and improving the confidentiality of power grid information.

[0090] The terminal device in this embodiment further includes a positioning module, and step S2 specifically includes:

[0091] The terminal device obtains the current location information, signs the current location information together with the target code, and sends it to the power grid system 3;

[0092] The power grid system 3 verifies whether the location information corresponds to the target code. If so, it returns the third information table to the terminal device. Specifically, it determines the location range based on the target code and then compares whether the location information is within the location range. If so, it indicates a correspondence. The power grid system 3 stores the location range corresponding to each target code. The device corresponding to the target code is within this location range. Thus, the terminal device 10 can only obtain the corresponding data when it requests data at the location of the device corresponding to the target code.

[0093] This embodiment provides a terminal device for efficient operation and maintenance of power distribution networks. Based on the aforementioned embodiment, a timing module and a positioning module are further added, which further enhances the protection of power grid information when operation and maintenance personnel obtain equipment information.

[0094] The above is a detailed description of an embodiment of a terminal device for efficient operation and maintenance of a power distribution network according to the present invention. The following will provide a detailed description of an embodiment of a terminal method for efficient operation and maintenance of a power distribution network according to the present invention.

[0095] This embodiment provides a method for achieving efficient operation and maintenance of a power distribution network, including:

[0096] Step 1: Obtain the target code corresponding to the device. The target code is used to identify different devices.

[0097] Step 2: Obtain the third information table from the power grid system based on the target code. The third information table is obtained from the device information column of the first information table stored locally by the power grid system. The first information table also includes a device name column. The first information table is generated based on the device information corresponding to the device. The target code is associated with the first and third information tables through the correspondence with the device.

[0098] Step 3: Generate a local second information table based on the device name column of the first information table. The second information table is also associated with the corresponding target code.

[0099] Step 4: Combine the second and third information tables locally to form the fourth information table;

[0100] Step 5: Obtain device information based on the fourth information table.

[0101] It should be noted that the efficient operation and maintenance implementation method of this embodiment is applicable to the efficient operation and maintenance terminal equipment provided in the foregoing embodiments. The specific implementation process of each step and other aspects are implemented based on the specific settings of the efficient operation and maintenance terminal equipment, and will not be repeated here.

[0102] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Terminal equipment for efficient operation and maintenance of power distribution networks, characterized in that, include: The system comprises a main control module, a communication module, a storage module, a target code acquisition module, an information table processing module, and a display module. The target code acquisition module is used to acquire the target code corresponding to the device, and the target code is used to identify different devices; The communication module is used to obtain a third information table from the power grid system according to the target code. The third information table is obtained based on the device information column of the first information table stored locally by the power grid system. The first information table also includes a device name column. The first information table is generated based on the device information corresponding to the device. The target code is associated with the first and third information tables through the correspondence with the device. The storage module is used to store a second information table, which is obtained based on the device name column of the first information table and is also associated with the corresponding target code. The information table processing module is used to combine the second and third information tables into a fourth information table; The main control module is used to forward the target code obtained from the target code to the communication module and the storage module in order to extract the associated second and third information tables; it is also used to forward the second and third information tables to the information table processing module for splicing processing; and it is also used to forward the processed fourth information table to the display module. The display module is used to display the device information in the fourth information table; It also includes: an identity recognition module, a signature module, and a privacy module, wherein the privacy module is a trusted execution environment and locally stores interrelated user identity information and terminal private keys; The identity recognition module is used to obtain the current user's identity information and then perform identity verification based on the local user's identity information; The privacy module is used to provide the terminal private key to the signature module after successful verification; The signature module is used to sign the target code obtained by the main control module using the terminal private key and then return it to the main control module so that the main control module can obtain the third information table from the power grid system based on the signed target code. The privacy module also stores the power grid public key, and the power grid system stores the terminal public key and the power grid private key; The privacy module encrypts the target code using the power grid public key and then sends it to the signature module for signing. The power grid system sequentially uses the terminal public key and the power grid private key to identify and decrypt the target code, and retrieves the associated third information table locally based on the processed target code.

2. The terminal equipment for efficient operation and maintenance of power distribution networks according to claim 1, characterized in that, Also includes: Switch module; The switch module is used to connect or disconnect the communication relationship between the communication module and the storage module and the main control module according to the instructions of the main control module, and to keep the communication relationship between the main control module and the communication module and the storage module in the opposite state.

3. The terminal equipment for efficient operation and maintenance of power distribution networks according to claim 1, characterized in that, Also includes: Update module; The update module is used to forward the user's update command to the main control module, so that the main control module can update the fourth information table. The update process includes: Determine whether the target code is associated with the fourth information table. If so, send the fourth information table to the information table processing module for interception and deletion, and obtain the updated second information table. At the same time, re-obtain the third information table from the power grid system and forward it to the information table processing module to merge it with the updated second information table. Save the merged information table as the updated fourth information table.

4. The terminal equipment for efficient operation and maintenance of power distribution networks according to claim 1, characterized in that, Also includes: Timing module; The timing module is used to provide the time after the fourth information table is generated to the main control module, so that the main control module deletes the fourth information table after the time exceeds the set time.

5. The terminal equipment for efficient operation and maintenance of power distribution networks according to claim 1, characterized in that, Also includes: Positioning module; The positioning module is used to send the current location information to the main control module, so that the main control module can send the current location information and the target code together to the power grid system for location matching judgment. Specifically, the location matching judgment is the power grid system judging whether the current location information matches the location information of the device corresponding to the target code.

6. A method for achieving efficient operation and maintenance of power distribution networks, characterized in that, include: Obtain the target code corresponding to the device, the target code being used to identify different devices; The target code obtains a third information table from the power grid system. The third information table is obtained based on the device information column of the first information table stored locally by the power grid system. The first information table also includes a device name column. The first information table is generated based on the device information corresponding to the device. The target code is associated with the first and third information tables through the correspondence with the device. A second local information table is generated based on the device name column of the first information table, and the second information table is also associated with the corresponding target code; Locally, combine the second and third information tables into a fourth information table; Obtain device information based on the fourth information table; The method further includes: After obtaining the current user's identity information, verify the identity based on the local user's identity information; Provide the terminal private key after successful verification; The acquired target code is signed using the terminal private key, and the third information table is obtained from the power grid system based on the signed target code. It also includes: storing the power grid public key locally, while the power grid system stores the terminal public key and the power grid private key; The target code is encrypted using the power grid public key and then signed. The power grid system sequentially uses the terminal public key and the power grid private key to identify and decrypt the target code, and retrieves the associated third information table locally based on the processed target code.

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