Sensing equipment access system of power grid

Abstract

The invention discloses a sensing equipment access system of a power grid. The system comprises an auxiliary access module which is used for generating demand confirmation information based on a user demand and sending the demand confirmation information to target sensing equipment, so that the sensing equipment returns at least one piece of target access information based on the demand confirmation information; the auxiliary access module is also used for generating each piece of target communication information matched with each piece of target access information based on each piece of target access information and sending the target communication information to the data storage module; the data protection module is used for encrypting the target communication information based on a preset encryption rule to obtain encrypted information and sending the encrypted information to the data storage module; and the data storage module is used for storing the received encrypted information and sending the stored encrypted information matched with the user access request to the external display device. Through the technical scheme of the invention, the access of the power grid sensing equipment can be realized, the access efficiency of the sensing equipment is improved, and meanwhile, the data security of the sensing equipment is improved.

Description

Technical Field

[0001] The present invention relates to the field of power grid monitoring, and in particular to a sensing device access system for a power grid. Background Art

[0002] In today's power sector, distribution companies are facing many thorny issues. Among them, electricity theft is difficult to effectively regulate, line losses remain high, and electricity bill collection is difficult. The traditional manual meter reading method is not only inefficient, but also greatly increases operating costs.

[0003] With the rapid development of energy Internet and power market, the development direction of power grid has gradually turned to the fields of intelligent measurement, IoT sensing and big data intelligent application. The promotion and application of HPLC technology has brought changes to the power field and has become an important communication means for many applications such as smart grid, energy management, smart home, photovoltaic power generation, electric vehicle charging, etc. The range of applied equipment has also expanded from concentrators and smart meters to distribution transformer intelligent terminals, energy controllers, energy routers, edge IoT agents and other sensing devices.

[0004] However, the existing power grid information collection system has obvious limitations. It mainly focuses on the collection of power energy information, and lacks the ability to support the ubiquitous access collection and data application management of various new sensing devices. This results in the inability of the sensing devices of the power grid to achieve efficient and flexible access, and it is difficult to meet the intelligent management and data comprehensive application requirements of power Internet of Things devices. In addition, the data of the sensing devices of the power grid, as important resources and confidential information, needs to be strictly protected to prevent arbitrary leakage, to ensure the safe and stable operation of the power grid and the privacy of users, and the existing manual meter reading method obviously cannot meet this demand. Summary of the invention

[0005] The present invention provides a sensing device access system for a power grid, which can solve the problems of low access efficiency of sensing devices in the existing power grid sensing device access system and poor data security of the sensing devices.

[0006] In a first aspect, an embodiment of the present invention provides a sensing device access system for a power grid, the system comprising:

[0007] Auxiliary access module, data protection module and data storage module;

[0008] The auxiliary access module is connected to the sensing device, and the data protection module establishes data connections with the auxiliary access module and the data storage module respectively;

[0009] The auxiliary access module is used to generate demand confirmation information based on user demand and send it to the target sensing device, so that the sensing device returns at least one target access information based on the demand confirmation information;

[0010] The auxiliary access module is further used to generate, after receiving each target access information, each target communication information matching each target access information based on each target access information and send it to the data storage module;

[0011] The data protection module is used to encrypt the target communication information based on a preset encryption rule after receiving each target communication information, obtain the encrypted information and send it to the data storage module;

[0012] The data storage module is used to store the received encrypted information and send the stored encrypted information matching the user access request to the external display device in response to the user access request.

[0013] Among them, the auxiliary access module specifically includes: a verification management unit, which is used to perform security verification on each target access information based on a preset security verification rule after receiving each target access information, and send each target access information to the access management unit after the security verification is passed; an access management unit, which is used to calculate the target frequency band matching each target access information through a pre-configured frequency band access model according to the communication load in each target access information after receiving each target access information, and send the target frequency band and the target access information to a communication output unit; a communication output unit, which is used to establish a communication connection with a data protection module based on the target frequency band after receiving the target frequency band; a feature extraction unit, which is used to extract features of each target access information through a preset feature extraction model after receiving each target access information, obtain feature data of each target, and send the feature data of each target to the communication output unit; the communication output unit is also used to generate each target communication information matching the target sensing device based on the target feature data and the target access information after receiving each target feature data and each target access information, and send the target communication information to the data encryption module through the target frequency band.

[0014] Specifically, the communication output unit further includes: a label generation unit, which is used to extract attribute information from the target access information after receiving each target access information, generate a target label matching the target access information based on the attribute information, and send the target label and the target access information matching the target label to the aggregation unit after binding and storing them; a distance calculation unit, which is used to calculate the edit distance between each target feature data and the preset standard feature data after receiving each target feature data sent by the feature extraction unit, so as to obtain each target feature distance; an aggregation unit, which is used to aggregate and store each target access information and target label based on the target feature distance using a preset aggregation rule, obtain each target communication information and send it to the data encryption module through the target frequency band.

[0015] Furthermore, the verification management unit is also used to: after the security verification fails, intercept and process the target access information and generate security verification failure information to prompt the user.

[0016] Among them, the data protection module includes: an encryption unit, which is used to process the target access information in the target communication information based on preset encryption rules after receiving the target communication information, and obtain encryption information and encryption keys that match the target communication information; an encryption information transmission unit, which is used to send the encryption key, encryption information and target tag that matches the target communication information to the data storage module.

[0017] Furthermore, the sensing device access system of the power grid also includes: a security verification module, which is used to generate a user access request in response to a user's access operation and send it to the data storage module; and, in response to the user's access operation, perform security verification on the user based on a preset security verification method, and when the user passes the security verification, generate a security request matching the access operation and send it to the data storage module.

[0018] Optionally, the data storage module also includes: a data matching unit, which is used to search whether there is a target tag that matches the user access request after receiving the user access request; a data output unit, which is used to send the encrypted information matching the target tag to the user device if a target tag that matches the user access request is found; and an error information generation unit, which is used to generate an error prompt and send it to the user device if no target tag that matches the user access request is found.

[0019] Furthermore, the data output unit is also used to: when receiving a security request from a user, search for an encryption key that matches the security request and send it to a user device, so that the user can use the encryption key to decrypt the encrypted information.

[0020] Among them, the preset security verification method includes: at least one of password account recognition, face recognition, IP address recognition and fingerprint recognition.

[0021] Optionally, the data storage module further includes: a data backup unit, used to regularly back up the stored encryption information and encryption keys to obtain backup data; and a backup data sending unit, used to send the backup data to a remote server for storage.

[0022] The technical solution of the embodiment of the present invention generates demand confirmation information based on user demand through an auxiliary access module and sends it to the target sensing device, so that the sensing device returns at least one target access information based on the demand confirmation information. After that, after receiving each target access information, the auxiliary access module generates each target communication information matching each target access information based on each target access information and sends it to the data storage module. After that, after receiving each target communication information, the data protection module encrypts the target communication information based on a preset encryption rule to obtain the encrypted information and sends it to the data storage module. Finally, the received encrypted information is stored through the data storage module, and in response to the user access request, the stored encrypted information matching the user access request is sent to an external display device. The problem that the access efficiency of the sensing device of the existing power grid sensing device access system is low and the data security of the sensing device is poor is solved, the access of the power grid sensing device is realized, the access efficiency of the sensing device is improved, and the data security of the sensing device is improved.

[0023] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the structure of a sensing device access system for a power grid provided according to Embodiment 1 of the present invention;

[0026] Figure 2 It is a structural diagram of a power grid sensing device access system provided according to Embodiment 2 of the present invention. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, any variation of the terms "including" and "having" is intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or modules is not necessarily limited to those steps or modules clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] Embodiment 1

[0030] Figure 1 This is a structural diagram of a system for accessing a sensing device to a power grid provided in Embodiment 1 of the present invention. This embodiment is applicable to the case where sensing devices are accessed to a power grid.

[0031] like Figure 1 As shown, the system includes: an auxiliary access module 110 , a data protection module 120 and a data storage module 130 .

[0032] The auxiliary access module 110 is connected to the sensing device, and the data protection module 120 establishes data connections with the auxiliary access module 110 and the data storage module 130 respectively;

[0033] The auxiliary access module 110 is used to generate demand confirmation information based on user demand and send it to the target sensing device, so that the sensing device returns at least one target access information based on the demand confirmation information.

[0034] In this embodiment, the sensing device refers to a type of device that can monitor, sense and collect the operating status, electrical parameters, environmental information, etc. of the power grid. These devices obtain relevant data of the power grid in real time through various sensors, monitoring devices and communication technologies, and transmit them to the control center or other processing systems to analyze, control and manage the power grid; for example, smart meters can sense users' electricity consumption in real time; current transformers and voltage transformers can sense the current and voltage values ​​in the power grid; line temperature sensors can sense temperature changes in transmission lines; environmental monitoring sensors can sense environmental information such as humidity and wind speed around the power grid. The above devices all belong to sensing devices of the power grid.

[0035] Among them, the demand confirmation information can be generated according to the user's data demand operation, and is used to identify what type of data is specifically needed to be included in the target access information that the user needs the target sensing device to return. For example, a demand confirmation information is sent to the environmental monitoring sensor to obtain humidity. In response to the demand confirmation information, the environmental monitor returns the target access information containing the environmental humidity information to the auxiliary access module 110.

[0036] The system of the embodiment of the present invention can customize and generate demand confirmation information according to user needs, accurately obtain the required data type, and improve the pertinence and accuracy of data acquisition. It realizes effective interaction with the target sensing device, prompts the sensing device to return the target access information as required, and improves the efficiency and effectiveness of data acquisition. At the same time, for a specific type of sensing device, it can accurately obtain specific environmental data to meet the user's needs for specific data.

[0037] Furthermore, the auxiliary access module 110 is further configured to generate, after receiving each target access information, each target communication information matching each target access information based on each target access information and send the generated target communication information to the data storage module 130 .

[0038] The data protection module 120 is used to encrypt the target communication information based on a preset encryption rule after receiving each target communication information, obtain the encrypted information and send it to the data storage module 130 .

[0039] Furthermore, the data protection module 120 includes: an encryption unit, which is used to process the target access information in the target communication information based on preset encryption rules after receiving the target communication information, so as to obtain encryption information and an encryption key that match the target communication information; an encryption information transmission unit, which is used to send the encryption key, encryption information and a target tag that matches the target communication information to the data storage module 130.

[0040] Exemplarily, in a specific implementation scenario of this embodiment, the target communication information is set to be a group of information containing detailed data of user electricity consumption. The data protection module 120 will encrypt these sensitive data according to specific encryption algorithms and rules, so that it has higher security during transmission and storage. Further, the data protection module 120 includes the following two main parts: an encryption unit, which plays a core role after receiving the target communication information. It will perform fine processing on the target access information in the target communication information based on the preset encryption rules. By using the encryption algorithm, the target access information is transformed and obfuscated, and finally the encrypted information that fully matches the target communication information and the corresponding encryption key are obtained. For example, for a target access information containing real-time power data of a specific regional power grid, the encryption unit can be processed by the Advanced Encryption Standard (AES) algorithm to generate unique encrypted information and corresponding keys. The encrypted information transmission unit is responsible for accurately sending the encryption key, encrypted information, and the target tag matching the target communication information generated by the encryption unit to the data storage module 130. This target tag can be an identifier for identifying the source, type, or other important attributes of a specific communication information. For example, the target tag can be an identifier representing a specific substation or a specific time period so that relevant data can be quickly and accurately identified and classified during data storage and subsequent processing.

[0041] It should be noted that, in this embodiment, the preset encryption algorithm can be set by relevant personnel based on the actual implementation scenario and application needs. The system described in this embodiment supports a variety of encryption algorithms with data encryption functions, including but not limited to the Advanced Encryption Standard algorithm, the asymmetric encryption algorithm, the Data Encryption Standard algorithm, the National Encryption SM2 algorithm, and the National Encryption SM4 algorithm.

[0042] The data storage module 130 is used to store the received encrypted information, and in response to a user access request, send the stored encrypted information matching the user access request to an external display device.

[0043] Furthermore, the data storage module 130 also includes: a data matching unit, which is used to search for a target tag that matches the user access request after receiving the user access request; a data output unit, which is used to send the encrypted information that matches the target tag to the user device if a target tag that matches the user access request is found; and an error information generation unit, which is used to generate an error prompt and send it to the user device if no target tag that matches the user access request is found.

[0044] In this embodiment, exemplarily, when the power grid monitoring personnel need to view the operation data of a certain regional power grid within a specific time period, the data storage module 130 will filter and send the corresponding encrypted information from a large number of stored data to an external display device according to its access request, so that the monitoring personnel can view and analyze it. Further, the data storage module 130 specifically includes: a data matching unit, which immediately starts working after receiving the user's user access request, and performs a comprehensive search of the tags of the stored data to determine whether there is a target tag that matches the user's access request. For example, if a user requests to view the power data of a specific substation last week, the data matching unit will search for a target tag related to the substation and the specified time period among the many stored data tags; a data output unit, whose function is that once the data matching unit finds a target tag that matches the user's access request, it will quickly send the encrypted information corresponding to the target tag to the user device. Assuming that the user successfully matches the required data tag, the data output unit will promptly and efficiently transmit the relevant encrypted information to the user's computer or mobile terminal and other devices; if the data matching unit carefully searches and finds no target tag that matches the user's access request, the error information generation unit will take effect, generate a corresponding error prompt, and send it to the user's device. For example, if the user requests to view data in a non-existent power grid area or in the wrong time period, the error information generation unit will generate a clear and concise error prompt, such as "The data you requested does not exist, please reconfirm your access request", and send it to the user's device to remind the user to correct the access request.

[0045] Optionally, the data storage module 130 further includes: a data backup unit, used to regularly back up the stored encryption information and encryption keys to obtain backup data; and a backup data sending unit, used to send the backup data to a remote server for storage.

[0046] Specifically, based on the above system, the data output unit is also used to: when receiving a security request from a user, search for an encryption key that matches the security request and send it to a user device, so that the user can use the encryption key to decrypt the encrypted information.

[0047] Based on the above, illustratively, for large-scale power grid operation data, the data backup unit will perform detailed backup operations on these encrypted key information at predetermined time intervals, such as daily, weekly or monthly.

[0048] Furthermore, the backup data sending unit is used to safely and quickly send the backup data generated by the data backup unit to a remote server for storage. This is like finding a "remote safe" for important data assets, further enhancing the disaster recovery capability and security of the data. For example, the backup data is transmitted to data centers located in different geographical locations through a secure network channel to prevent data loss due to local disasters or system failures.

[0049] Specifically, based on the above system, the data output unit also has the following important functions: when receiving a security request from a user, it will immediately start a precise search mechanism, quickly screen out a specific encryption key that matches the security request from a large number of encryption keys, and send it to the user's device. This enables the user to obtain the encryption key required for decryption, and then use the encryption key to decrypt the corresponding encrypted information to obtain clear, accurate and unencrypted original data; for example, assuming that the user is a senior administrator of the power grid system, when conducting in-depth data analysis and research, a security request is issued to the data output unit, and the unit will accurately find the corresponding encryption key and transmit it to the user's dedicated device, so that the user can successfully complete the decryption process and obtain the required plaintext data.

[0050] In this embodiment, optionally, the sensing device access system of the power grid also includes: a security verification module, which is used to generate a user access request in response to the user's access operation and send it to the data storage module 130; and, in response to the user's access operation, perform security verification on the user based on a preset security verification method, and when the user passes the security verification, generate a security request matching the access operation and send it to the data storage module 130.

[0051] Specifically, the preset security verification method includes: at least one of password account recognition, face recognition, IP address recognition and fingerprint recognition.

[0052] The technical solution of the embodiment of the present invention generates demand confirmation information based on user demand through an auxiliary access module and sends it to a target sensing device, so that the sensing device returns at least one target access information based on the demand confirmation information. After that, after receiving each target access information, the auxiliary access module generates each target communication information matching each target access information based on each target access information and sends it to a data storage module. After that, after receiving each target communication information, the data protection module encrypts the target communication information based on a preset encryption rule to obtain the encrypted information and sends it to the data storage module. Finally, the received encrypted information is stored through the data storage module, and in response to a user access request, the stored encrypted information matching the user access request is sent to an external display device, thereby realizing the access of power grid sensing devices, improving the access efficiency of sensing devices, and improving the data security of sensing devices.

[0053] Embodiment 2

[0054] Figure 2 This is a structural diagram of a system for accessing a sensing device to a power grid provided in the second embodiment of the present invention. This embodiment is applicable to the case where sensing devices are accessed to a power grid.

[0055] like Figure 2 As shown, the sensing device access system of the power grid includes: an auxiliary access module, a data protection module and a data storage module.

[0056] The auxiliary access module further includes: a verification management unit 210 , an access management unit 220 , a communication output unit 230 and a feature extraction unit 240 .

[0057] In this embodiment, the auxiliary access module specifically includes:

[0058] The verification management unit 210 is used to perform security verification on each target access information based on a preset security verification rule after receiving each target access information, and send each target access information to the access management unit 220 after the security verification passes.

[0059] Specifically, the verification management unit 210 is used to carry out comprehensive security verification of the target access information according to the preset security verification rules after receiving the target access information from all parties. Only when the security verification is successfully passed, the target access information will be passed to the access management unit 220. For example, the verification management unit 210 will check the source, format, encryption status and other aspects of the target access information to ensure that it meets the security standards.

[0060] The access management unit 220 is used to, after receiving each target access information, calculate the target frequency band matching each target access information according to the communication load in each target access information through a pre-configured frequency band access model and send the target frequency band and the target access information to the communication output unit 230.

[0061] Furthermore, after receiving each target access information, the access management unit 220 will perform complex calculations based on the communication load conditions contained in each target access information with the help of a pre-configured frequency band access model, thereby obtaining a target frequency band that matches each target access information. Subsequently, the determined target frequency band and the corresponding target access information are sent to the communication output unit 230. For example, the access management unit 220 will analyze the traffic size, transmission priority and other communication load factors of the target access information to accurately calculate a suitable frequency band.

[0062] The communication output unit 230 is configured to establish a communication connection with the data protection module based on the target frequency band after receiving the target frequency band.

[0063] Furthermore, the communication output unit 230 is used to establish an effective communication connection with the data protection module based on the target frequency band after receiving the target frequency band. For example, the communication output unit 230 adjusts its own communication settings according to the parameters of the target frequency band to achieve stable communication with the data protection module.

[0064] The feature extraction unit 240 is used to extract features from the target access information by using a preset feature extraction model after receiving the target access information, obtain feature data of each target, and send the feature data of each target to the communication output unit 230 .

[0065] The communication output unit 230 is also used to generate target communication information matching the target sensing device based on the target feature data and the target access information after receiving the target feature data and the target access information, and send it to the data encryption module through the target frequency band.

[0066] Furthermore, the communication output unit 230 further includes: a label generation unit, which is used to extract attribute information from the target access information after receiving each target access information, generate a target label matching the target access information based on the attribute information, and send the target label and the target access information matching the target label to the aggregation unit after binding and storing them; a distance calculation unit, which is used to calculate the edit distance between each target feature data and the preset standard feature data after receiving each target feature data sent by the feature extraction unit 240, so as to obtain each target feature distance; an aggregation unit, which is used to aggregate and store each target access information and target label based on the target feature distance using a preset aggregation rule, obtain each target communication information and send it to the data encryption module through the target frequency band.

[0067] Optionally, the verification management unit 210 is further used to: after the security verification fails, intercept and process each target access information and generate security verification failure information to prompt the user.

[0068] Based on the above system, specifically, the communication output unit 230 is used to generate each target communication information adapted to the target sensing device based on the target characteristic data and the target access information when receiving the target characteristic data and the target access information, and then send it to the data encryption module through the target frequency band. For example, the target characteristic data may be specific parameters about the operating status of the device, and the target access information may be the identification of the device and the initial communication request.

[0069] Furthermore, the communication output unit 230 also includes the following parts:

[0070] After receiving the target access information, the label generation unit will extract the attribute information, such as the device type, data source, etc., and then generate a target label that matches the target access information based on the attribute information, and then bind the target label and the corresponding target access information for storage and send it to the aggregation unit. The distance calculation unit, after receiving the target feature data from the feature extraction unit 240, will respectively calculate the edit distance between these data and the pre-set standard feature data. The edit distance refers to the minimum number of operations required to convert one data into another, and the target feature distance is obtained by calculation. The aggregation unit will integrate and store the target access information and target labels based on the target feature distance and the pre-set aggregation rules. For example, classified storage is performed according to the distance range or data type, and finally the communication information of each target is obtained and sent to the data encryption module through the target frequency band.

[0071] Optionally, the verification management unit 210 can also be used to intercept the target access information when the security verification fails, stop the transmission, and generate relevant information of the security verification failure to prompt the user. For example, the security verification may be to check the user password or confirm the user authority, and if it does not meet the requirements, intercept and prompt.

[0072] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

Claims

1. A sensing device access system for a power grid, characterized in that: It includes an auxiliary access module, a data protection module and a data storage module; The auxiliary access module is connected to the sensing device, and the data protection module establishes data connections with the auxiliary access module and the data storage module respectively; The auxiliary access module is used to generate demand confirmation information based on user demand and send it to the target sensing device, so that the sensing device returns at least one target access information based on the demand confirmation information; The auxiliary access module is further used to generate, after receiving each target access information, each target communication information matching each target access information based on each target access information and send it to the data storage module; The data protection module is used to encrypt the target communication information based on a preset encryption rule after receiving each target communication information, obtain the encrypted information and send it to the data storage module; The data storage module is used to store the received encrypted information and send the stored encrypted information matching the user access request to the external display device in response to the user access request.

2. The system according to claim 1, characterized in that The auxiliary access module specifically includes: A verification management unit, configured to perform security verification on each target access information based on a preset security verification rule after receiving each target access information, and send each target access information to the access management unit after the security verification passes; an access management unit, configured to, after receiving each target access information, calculate a target frequency band matching each target access information through a pre-configured frequency band access model according to the communication load in each target access information, and send the target frequency band and the target access information to a communication output unit; a communication output unit, configured to establish a communication connection with a data protection module based on the target frequency band after receiving the target frequency band; A feature extraction unit, configured to extract features of each target access information by using a preset feature extraction model after receiving each target access information, obtain feature data of each target, and send each target feature data to the communication output unit; The communication output unit is also used to generate target communication information matching the target sensing device based on the target feature data and the target access information after receiving the target feature data and the target access information, and send it to the data encryption module through the target frequency band.

3. The system according to claim 2, characterized in that The communication output unit further comprises: a label generation unit, configured to extract attribute information from each target access information after receiving the target access information, generate a target label matching the target access information based on the attribute information, and send the target label and the target access information matching the target label to the aggregation unit after binding and storing them; A distance calculation unit is used to calculate the edit distance between each target feature data and the preset standard feature data after receiving each target feature data sent by the feature extraction unit, so as to obtain each target feature distance; The aggregation unit is used to aggregate and store the access information and target tags of each target based on the target feature distance using a preset aggregation rule, obtain the communication information of each target and send it to the data encryption module through the target frequency band.

4. The system according to claim 2, characterized in that The verification management unit is further used for: After the security verification fails, each target access information is intercepted and processed and a security verification failure message is generated to prompt the user.

5. The system according to claim 1, characterized in that The data protection module comprises: An encryption unit, configured to, after receiving the target communication information, process the target access information in the target communication information based on a preset encryption rule to obtain encryption information and an encryption key matching the target communication information; The encryption information transmission unit is used to send the encryption key, encryption information and a target tag matching the target communication information to the data storage module.

6. The system according to claim 1, characterized in that The sensing device access system of the power grid also includes: A security verification module, used to generate a user access request in response to a user's access operation and send the request to the data storage module; And, in response to the user's access operation, security verification is performed on the user based on a preset security verification method, and when the user passes the security verification, a security request matching the access operation is generated and sent to the data storage module.

7. The system according to claim 1, characterized in that The data storage module further includes: A data matching unit, configured to, after receiving a user access request from a user, search for a target tag that matches the user access request; a data output unit, configured to send encrypted information matching the target tag to the user device if a target tag matching the user access request is found; The error information generating unit is used to generate an error prompt and send it to the user device if no target tag matching the user access request is found.

8. The system according to claim 7, characterized in that The data output unit is further used for: When receiving a security request from a user, an encryption key matching the security request is searched and sent to the user device, so that the user can use the encryption key to decrypt the encrypted information.

9. The system according to claim 6, characterized in that The preset security verification method includes: at least one of password account recognition, face recognition, IP address recognition and fingerprint recognition.

10. The system according to claim 1, characterized in that The data storage module further includes: A data backup unit, used to regularly back up the stored encryption information and encryption keys to obtain backup data; The backup data sending unit is used to send the backup data to a remote server for storage.

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