CN110798309A - Intelligent meter access system based on Beidou short message communication transmission - Google Patents
Intelligent meter access system based on Beidou short message communication transmission Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0209—Architectural arrangements, e.g. perimeter networks or demilitarized zones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/045—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0823—Network architectures or network communication protocols for network security for authentication of entities using certificates
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0869—Network architectures or network communication protocols for network security for authentication of entities for achieving mutual authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
- H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
Abstract
The invention discloses an intelligent meter access system based on Beidou short message communication transmission, provides an intelligent meter information transmission solution based on the Beidou technology, and has a safer, more convenient and more efficient intelligent meter access function. The invention comprises an intelligent meter terminal, a Beidou short message communication system, a safety access platform and an enterprise intranet; the Beidou short message communication system comprises a Beidou commander and a Beidou communication front-end device; the Beidou communication front-end is communicated with a safety access area; the Beidou commanding machine is communicated with the communication terminal through an air interface; the communication terminal is a Beidou communication module and a Beidou data transmission terminal which are connected with each intelligent meter terminal; the system also comprises a unified key management system, wherein the unified key management system issues keys for the intelligent meter terminal and verifies the keys of the security access platform; the Beidou short message communication system communicates through a Beidou safety communication protocol; the Beidou secure communication protocol adopts an SM4 algorithm, an SM2 algorithm and an SM3 algorithm in commercial cryptographic algorithms.
Description
Technical Field
The invention relates to an intelligent meter access system, in particular to a wireless data transmission management method for an intelligent meter terminal.
Background
With the development of society and the transformation of energy structures in China, water meters and gas meters have already gone into thousands of households, but the traditional mechanical water meters need to be manually checked, so that the defects of low efficiency, high labor cost, easy error of recorded data, difficult maintenance and management, inconvenient payment and the like are inevitable.
Therefore, remote intelligent meter reading based on the operator wireless network is carried out at once, and a series of problems of manual meter reading are solved. Wireless networks are available in many ways, including NB-IoT based, 4G networks, etc.; at present, no intelligent meter information management system based on Beidou short message communication transmission exists;
the Beidou satellite navigation system is a global satellite navigation system developed by China, provides service functions of quick positioning, real-time navigation, precise time service, position reporting and short message service for military and civilian users, and has the advantages of safety and reliability. In the aspect of short message communication, the Beidou satellite navigation system in China continues to use the GEO bidirectional communication function, which is the biggest bright spot and characteristic of the Beidou satellite navigation system different from the GPS and other systems. The function of the Beidou short message has strong application value in the fields of national defense, civil life, emergency rescue and the like.
Due to the advantages of wide coverage range, short construction period, low investment cost and the like, the Beidou short message is gradually valued by various industries and applied to areas without power special communication coverage as a supplementary communication mode for information data acquisition.
From 2010, the application and exploration of the Beidou in the power industry are greatly promoted by the national power grid, the content covers various aspects of time service, frequency grant, positioning, short messages and the like of the Beidou, various Beidou + power application solutions are formed, and the application is widely applied to power grid production and management. At the present stage, the specific application of the big dipper to the national power grid is mainly in the aspects of time synchronization of a dispatching automation system, frequency synchronization of a power communication network, accurate positioning of people and vehicles, data acquisition and return of a big dipper short message in a remote unmanned area and the like in the field of power grid control.
The Beidou short message technology can bear various power service terminals, service information can comprise electricity utilization information acquisition service, distribution network automation service, power equipment facility monitoring service and the like, leakage and damage to service information can cause serious harm to legal rights and interests of citizens, legal people and other organizations; after the system service is damaged, the normal operation of related power business can be influenced, and general damage can be caused to social order and public benefits.
Disclosure of Invention
The invention aims to solve the technical problem that in order to overcome the defects in the prior art, the invention provides the intelligent meter access system based on Beidou short message communication transmission, provides an intelligent meter information transmission solution based on the Beidou technology, and has a safer, more convenient and more efficient intelligent meter access function.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the intelligent meter access system based on Beidou short message communication transmission comprises an intelligent meter terminal, a Beidou short message communication system, a safety access platform and an enterprise intranet;
the Beidou short message communication system comprises a Beidou commander and a Beidou communication front-end device; the Beidou communication front-end is communicated with a safety access area; the Beidou commanding machine is communicated with the communication terminal through an air interface; the communication terminal is a Beidou communication module and a Beidou data transmission terminal which are connected with each intelligent meter terminal;
the system also comprises a unified key management system, wherein the unified key management system issues keys for the intelligent meter terminal and verifies the keys of the security access platform;
the Beidou short message communication system communicates through a Beidou safety communication protocol; the Beidou secure communication protocol adopts an SM4 algorithm, an SM2 algorithm and an SM3 algorithm in a commercial cryptographic algorithm; the SM4 algorithm is a symmetric encryption algorithm and is used for encrypting communication data in a wireless network to ensure the confidentiality of communication; the SM2 algorithm is an asymmetric encryption algorithm used for identity authentication and verifying data integrity; the SM3 algorithm is a hash algorithm used to generate a message digest to perform data integrity checks in conjunction with the SM2 algorithm.
As a preferred embodiment of the present invention: a boundary safety protection module is arranged in the safety access platform; the boundary safety protection module is a hardware firewall; and the enterprise intranet is provided with an application safety protection module.
As a preferred embodiment of the present invention: the safety access platform is provided with a Beidou access gateway; the Beidou secure communication protocol comprises a key negotiation flow and an encryption communication flow;
the key agreement process means that the Beidou secure communication protocol adopts a certificate type key agreement mode, and uses an SM2 certificate to realize bidirectional identity authentication of two communication parties, the two communication parties firstly mutually verify the legality of the opposite party according to the identity authentication protocol to ensure that only a legal terminal can establish a communication channel, and on the basis, a dynamic and secure symmetric encryption key is generated by using a key exchange protocol; the key agreement process comprises the following steps:
s1: processing a key negotiation request message;
the Beidou data transmission terminal firstly generates a 32-byte random number X through a hardware random number generator; then, taking the gateway public key as an encryption key, carrying out encryption operation of an SM2 algorithm on the random number X to generate a random number ciphertext Apubkey (X), and sending the random number ciphertext A to the Beidou access gateway through Beidou satellite communication; the length of A is 128 bytes, the first 64 bytes of A are sent by a key negotiation request message 1, and the last 64 bytes of A are sent by a key negotiation request message 2;
s2: processing the key negotiation confirmation message;
after receiving the random number ciphertext A sent by the Beidou data transmission terminal, the Beidou access gateway performs decryption operation of an SM2 algorithm on the random number ciphertext A by taking a gateway private key as a decryption key to obtain a plaintext random number X;
through the key agreement processing process, the Beidou data transmission terminal and the Beidou access gateway complete the whole key agreement process, complete the two-way identity authentication and agree out the same session key X, and then can use the session key X communication process to carry out security encryption protection.
As a preferred embodiment of the present invention: the encryption communication flow comprises the following steps:
s100: processing communication data sent by the Beidou data transmission terminal;
the Beidou DATA transmission terminal wants to send plaintext DATA DATA1 to the Beidou access gateway; due to the characteristics of the SM4 algorithm, padding processing is required for the plaintext DATA 1; then, the session key X is used as an encryption key to perform SM4 algorithm encryption operation on the filled DATA1 to obtain ciphertext DATA G (EX (DATA1), and the ciphertext DATA G is sent to the Beidou access gateway through Beidou satellite communication; after receiving the ciphertext DATA G, the Beidou access gateway firstly performs integrity check on the DATA through a CRC16 algorithm, then performs decryption operation on the ciphertext DATA G by taking the session key X as a decryption key and performs back filling processing according to rules to obtain plaintext DATA DATA 1;
s200: processing the communication data sent by the Beidou access gateway;
the Beidou access gateway wants to send plaintext DATA DATA2 to the Beidou DATA transmission terminal; due to the characteristics of the SM4 algorithm, padding processing is required for the plaintext DATA 2; then, the session key X is used as an encryption key to perform SM4 algorithm encryption operation on the filled DATA2 to obtain ciphertext DATA H (EX (DATA2), and the ciphertext DATA H is sent to the Beidou satellite communication terminal; after receiving the ciphertext DATA H, the Beidou DATA transmission terminal firstly performs integrity check on the DATA through a CRC16 algorithm, then performs decryption operation on the ciphertext DATA H by taking the session key X as a decryption key, and performs back filling processing according to rules to obtain plaintext DATA DATA 2.
The invention has the beneficial effects that:
the invention discloses an intelligent meter access system based on Beidou short message communication transmission, which realizes the transmission based on the Beidou short message communication mode by arranging a Beidou short message communication system and a corresponding communication terminal and a safety access area thereof; the invention collects and transmits information from four levels of access terminal, network environment, boundary and application, and embodies the design idea of layer by layer. Through the transmission process of four layers, comprehensive acquisition transmission and safety protection of data interaction in the access process of the intelligent meter are realized.
Drawings
FIG. 1 is a schematic system diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a key agreement process according to the present invention;
fig. 3 is a schematic diagram of an encrypted communication flow according to the present invention.
Description of reference numerals:
b1, Beidou short message communication and information intranet boundary; b2, Beidou short message communication and safety access area boundary; b3 boundary of safety access area and production control area.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings and examples:
as shown in the figure, the specific embodiment of the invention is shown, and as shown in the figure, the intelligent meter access system based on Beidou short message communication transmission disclosed by the invention comprises an intelligent meter terminal, a Beidou short message communication system, a safety access platform and an enterprise intranet;
the Beidou short message communication system comprises a Beidou commander and a Beidou communication front-end device; the Beidou communication front-end is communicated with a safety access area; the Beidou commanding machine is communicated with the communication terminal through an air interface; the communication terminal is a Beidou communication module and a Beidou data transmission terminal which are connected with each intelligent meter terminal;
the system also comprises a unified key management system, wherein the unified key management system issues keys for the intelligent meter terminal and verifies the keys of the security access platform;
the Beidou short message communication system communicates through a Beidou safety communication protocol; the Beidou secure communication protocol adopts an SM4 algorithm, an SM2 algorithm and an SM3 algorithm in a commercial cryptographic algorithm; the SM4 algorithm is a symmetric encryption algorithm and is used for encrypting communication data in a wireless network to ensure the confidentiality of communication; the SM2 algorithm is an asymmetric encryption algorithm used for identity authentication and verifying data integrity; the SM3 algorithm is a hash algorithm used to generate a message digest to perform data integrity checks in conjunction with the SM2 algorithm.
As a preferred embodiment of the present invention, a boundary security protection module is disposed in the security access platform; the boundary safety protection module is a hardware firewall; and the enterprise intranet is provided with an application safety protection module. This embodiment sets up convenient safety protection module and application safety protection module, increases data transmission security.
As a preferred embodiment of the present invention, the secure access platform is provided with a beidou access gateway; the Beidou secure communication protocol comprises a key negotiation flow and an encryption communication flow;
the key agreement process means that the Beidou secure communication protocol adopts a certificate type key agreement mode, and uses an SM2 certificate to realize bidirectional identity authentication of two communication parties, the two communication parties firstly mutually verify the legality of the opposite party according to the identity authentication protocol to ensure that only a legal terminal can establish a communication channel, and on the basis, a dynamic and secure symmetric encryption key is generated by using a key exchange protocol; the key agreement process comprises the following steps:
s1: processing a key negotiation request message;
the Beidou data transmission terminal firstly generates a 32-byte random number X through a hardware random number generator; then, taking the gateway public key as an encryption key, carrying out encryption operation of an SM2 algorithm on the random number X to generate a random number ciphertext Apubkey (X), and sending the random number ciphertext A to the Beidou access gateway through Beidou satellite communication; the length of A is 128 bytes, the first 64 bytes of A are sent by a key negotiation request message 1, and the last 64 bytes of A are sent by a key negotiation request message 2;
s2: processing the key negotiation confirmation message;
after receiving the random number ciphertext A sent by the Beidou data transmission terminal, the Beidou access gateway performs decryption operation of an SM2 algorithm on the random number ciphertext A by taking a gateway private key as a decryption key to obtain a plaintext random number X;
through the key agreement processing process, the Beidou data transmission terminal and the Beidou access gateway complete the whole key agreement process, complete the two-way identity authentication and agree out the same session key X, and then can use the session key X communication process to carry out security encryption protection.
As a preferred embodiment of the present invention, the encrypted communication flow includes the following steps:
s100: processing communication data sent by the Beidou data transmission terminal;
the Beidou DATA transmission terminal wants to send plaintext DATA DATA1 to the Beidou access gateway; due to the characteristics of the SM4 algorithm, padding processing is required for the plaintext DATA 1; then, the session key X is used as an encryption key to perform SM4 algorithm encryption operation on the filled DATA1 to obtain ciphertext DATA G (EX (DATA1), and the ciphertext DATA G is sent to the Beidou access gateway through Beidou satellite communication; after receiving the ciphertext DATA G, the Beidou access gateway firstly performs integrity check on the DATA through a CRC16 algorithm, then performs decryption operation on the ciphertext DATA G by taking the session key X as a decryption key and performs back filling processing according to rules to obtain plaintext DATA DATA 1;
s200: processing the communication data sent by the Beidou access gateway;
the Beidou access gateway wants to send plaintext DATA DATA2 to the Beidou DATA transmission terminal; due to the characteristics of the SM4 algorithm, padding processing is required for the plaintext DATA 2; then, the session key X is used as an encryption key to perform SM4 algorithm encryption operation on the filled DATA2 to obtain ciphertext DATA H (EX (DATA2), and the ciphertext DATA H is sent to the Beidou satellite communication terminal; after receiving the ciphertext DATA H, the Beidou DATA transmission terminal firstly performs integrity check on the DATA through a CRC16 algorithm, then performs decryption operation on the ciphertext DATA H by taking the session key X as a decryption key, and performs back filling processing according to rules to obtain plaintext DATA DATA 2. The embodiment discloses a specific key negotiation processing method and an encryption communication method, which provide reliable support for the safe transmission of information.
While the preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and various changes, which relate to the related art known to those skilled in the art and fall within the scope of the present invention, can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (4)
1. Intelligent meter access system based on big dipper short message communication transmission, its characterized in that: the system comprises an intelligent meter terminal, a Beidou short message communication system, a safety access platform and an enterprise intranet;
the Beidou short message communication system comprises a Beidou commander and a Beidou communication front-end device; the Beidou communication front-end is communicated with a safety access area; the Beidou commanding machine is communicated with the communication terminal through an air interface; the communication terminal is a Beidou communication module and a Beidou data transmission terminal which are connected with each intelligent meter terminal;
the system also comprises a unified key management system, wherein the unified key management system issues keys for the intelligent meter terminal and verifies the keys of the security access platform;
the Beidou short message communication system communicates through a Beidou safety communication protocol; the Beidou secure communication protocol adopts an SM4 algorithm, an SM2 algorithm and an SM3 algorithm in a commercial cryptographic algorithm; the SM4 algorithm is a symmetric encryption algorithm and is used for encrypting communication data in a wireless network to ensure the confidentiality of communication; the SM2 algorithm is an asymmetric encryption algorithm used for identity authentication and data integrity verification; the SM3 algorithm is a hash algorithm used to generate a message digest to perform data integrity checks in conjunction with the SM2 algorithm.
2. The smart meter access system based on Beidou short message communication transmission according to claim 1, characterized in that: a boundary safety protection module is arranged in the safety access platform; the boundary safety protection module is a hardware firewall; and the enterprise intranet is provided with an application safety protection module.
3. The smart meter access system based on Beidou short message communication transmission according to claim 1, characterized in that: the safety access platform is provided with a Beidou access gateway; the Beidou secure communication protocol comprises a key negotiation flow and an encryption communication flow;
the key agreement process means that the Beidou secure communication protocol adopts a certificate type key agreement mode, bidirectional identity authentication of two communication parties is realized by using an SM2 certificate, the two communication parties mutually verify the legitimacy of the opposite party according to the identity authentication protocol at first, and ensure that only a legal terminal can establish a communication channel, and on the basis, a dynamic and secure symmetric encryption key is generated by using a key exchange protocol; the key negotiation process comprises the following steps:
s1: processing a key negotiation request message;
the Beidou data transmission terminal firstly generates a 32-byte random number X through a hardware random number generator; then, taking the gateway public key as an encryption key, carrying out encryption operation of an SM2 algorithm on the random number X to generate a random number ciphertext Apubkey (X), and sending the random number ciphertext A to the Beidou access gateway through Beidou satellite communication; the length of A is 128 bytes, the first 64 bytes of A are sent by a key negotiation request message 1, and the last 64 bytes of A are sent by a key negotiation request message 2;
s2: processing the key negotiation confirmation message;
after receiving the random number ciphertext A sent by the Beidou data transmission terminal, the Beidou access gateway performs decryption operation of an SM2 algorithm on the random number ciphertext A by taking a gateway private key as a decryption key to obtain a plaintext random number X;
through the key agreement processing process, the Beidou data transmission terminal and the Beidou access gateway complete the whole key agreement process, complete bidirectional identity authentication and agree out the same session key X, and then can use the session key X communication process to carry out security encryption protection.
4. The smart meter access system based on Beidou short message communication transmission according to claim 3, characterized in that: the encryption communication flow comprises the following steps:
s100: processing communication data sent by the Beidou data transmission terminal;
the Beidou DATA transmission terminal wants to send plaintext DATA DATA1 to the Beidou access gateway; due to the characteristics of the SM4 algorithm, padding processing is required for the plaintext DATA 1; then, the session key X is used as an encryption key to perform SM4 algorithm encryption operation on the filled DATA1 to obtain ciphertext DATA G (EX (DATA1), and the ciphertext DATA G is sent to the Beidou access gateway through Beidou satellite communication; after receiving the ciphertext DATA G, the Beidou access gateway firstly performs integrity check on the DATA through a CRC16 algorithm, then performs decryption operation on the ciphertext DATA G by taking the session key X as a decryption key and performs back filling processing according to rules to obtain plaintext DATA DATA 1;
s200: processing the communication data sent by the Beidou access gateway;
the Beidou access gateway wants to send plaintext DATA DATA2 to the Beidou DATA transmission terminal; due to the characteristics of the SM4 algorithm, padding processing is required for the plaintext DATA 2; then, the session key X is used as an encryption key to perform SM4 algorithm encryption operation on the filled DATA2 to obtain ciphertext DATA H (EX (DATA2), and the ciphertext DATA H is sent to the Beidou satellite communication terminal; after receiving the ciphertext DATA H, the Beidou DATA transmission terminal firstly performs integrity check on the DATA through a CRC16 algorithm, then performs decryption operation on the ciphertext DATA H by taking the session key X as a decryption key, and performs back filling processing according to rules to obtain plaintext DATA DATA 2.
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| CN112367664A (en) * | 2020-09-23 | 2021-02-12 | 国家电网有限公司 | Method and device for safely accessing external equipment to intelligent electric meter |
| CN112367570A (en) * | 2020-10-29 | 2021-02-12 | 福信富通科技股份有限公司 | Emergency instruction system based on wireless intercom system and method thereof |
| CN112383917A (en) * | 2020-10-21 | 2021-02-19 | 华北电力大学 | Beidou secure communication method and system based on quotient and secret algorithm |
| CN113132083A (en) * | 2021-04-02 | 2021-07-16 | 四川省计算机研究院 | Safety authentication system, method and device applied to Beidou navigation system |
| CN113301566A (en) * | 2021-05-25 | 2021-08-24 | 广州瀚信通信科技股份有限公司 | Two-standard four-real data security access system based on 5G edge calculation |
| CN113676445A (en) * | 2021-07-05 | 2021-11-19 | 国网上海能源互联网研究院有限公司 | Method and system suitable for transmitting files of power distribution Internet of things |
| CN113726527A (en) * | 2021-09-28 | 2021-11-30 | 河南国科量子通信技术应用研究院 | Quantum safety data protection method in field operation scene |
| CN114339632A (en) * | 2021-12-15 | 2022-04-12 | 贵州航天计量测试技术研究所 | SM4 packet encryption algorithm-based Beidou short message encryption and decryption method |
| CN116074811A (en) * | 2023-04-06 | 2023-05-05 | 深圳华大北斗科技股份有限公司 | eSim-based Beidou short message communication method, eSim-based Beidou short message communication device and storage medium |
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| CN112367664A (en) * | 2020-09-23 | 2021-02-12 | 国家电网有限公司 | Method and device for safely accessing external equipment to intelligent electric meter |
| CN112367664B (en) * | 2020-09-23 | 2024-03-01 | 国家电网有限公司 | Method and device for safely accessing external equipment into intelligent ammeter |
| CN112383917A (en) * | 2020-10-21 | 2021-02-19 | 华北电力大学 | Beidou secure communication method and system based on quotient and secret algorithm |
| CN112367570A (en) * | 2020-10-29 | 2021-02-12 | 福信富通科技股份有限公司 | Emergency instruction system based on wireless intercom system and method thereof |
| CN113132083A (en) * | 2021-04-02 | 2021-07-16 | 四川省计算机研究院 | Safety authentication system, method and device applied to Beidou navigation system |
| CN113301566A (en) * | 2021-05-25 | 2021-08-24 | 广州瀚信通信科技股份有限公司 | Two-standard four-real data security access system based on 5G edge calculation |
| CN113301566B (en) * | 2021-05-25 | 2022-07-12 | 广州瀚信通信科技股份有限公司 | Two-standard four-real data security access system based on 5G edge calculation |
| CN113676445A (en) * | 2021-07-05 | 2021-11-19 | 国网上海能源互联网研究院有限公司 | Method and system suitable for transmitting files of power distribution Internet of things |
| CN113726527A (en) * | 2021-09-28 | 2021-11-30 | 河南国科量子通信技术应用研究院 | Quantum safety data protection method in field operation scene |
| CN114339632A (en) * | 2021-12-15 | 2022-04-12 | 贵州航天计量测试技术研究所 | SM4 packet encryption algorithm-based Beidou short message encryption and decryption method |
| CN116074811A (en) * | 2023-04-06 | 2023-05-05 | 深圳华大北斗科技股份有限公司 | eSim-based Beidou short message communication method, eSim-based Beidou short message communication device and storage medium |
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