Electromagnetic safety communication method and system

Abstract

The invention relates to the technical field of electromagnetic communication encryption, in particular to an electromagnetic safety communication method and system, and the method comprises the steps: determining a plurality of communication levels corresponding to a communication behavior as a level response packet, and determining a plurality of terminals corresponding to the communication behavior; judging whether a single terminal can establish a communication channel or not according to the communication interval of each terminal; if the level response packet contains at most one communication interval corresponding to the communication level, the terminal establishes a surface layer communication channel; according to the invention, the corresponding information is sent and received by using different channels, so that the different information is transmitted by using the different channels, meanwhile, the communication channel is judged by using the terminal, and whether the information is received is determined by an information receiver, so that the information transmission is completed by using multiple channels while the communication security is effectively improved, and the user experience is improved. Therefore, the stability of information transmission is effectively improved, and information leakage can be effectively prevented.

Description

Technical Field

[0001] The present invention relates to the field of electromagnetic communication encryption technology, and in particular to an electromagnetic security communication method and system. Background Art

[0002] Electromagnetic secure communication refers to a technical system that ensures information transmission is resistant to interference, eavesdropping, and forgery in complex electromagnetic environments. Traditional communication security relies primarily on a single encryption algorithm or physical isolation for electromagnetic communication.

[0003] Chinese Patent Authorization Announcement No.: CN116074825B discloses a wireless communication data security transmission method and system based on a dual-mode module, which is applied to the field of data processing technology. The method includes: obtaining the preset area equipment distribution information, performing a first communication mode simulation, and obtaining the communication loss parameter. The user slave distribution position whose communication loss parameter is less than or equal to the communication loss threshold is set as the first group user slave distribution position. The user slave distribution position whose communication loss parameter is greater than the communication loss threshold is extracted and set as the second group user slave distribution position. The communication path of the second group user slave is optimized, and the second group user slave communication path is generated. After encryption according to the preset encryption rules, the conversion data is obtained. According to the second group user slave communication path, the first group user slave distribution position is transmitted. The technical problem of large transmission loss in the communication data transmission process and low communication security in the electricity consumption collection system is solved.

[0004] However, the above method only securely identifies information by encrypting it. In a more complex electromagnetic environment, it is generally difficult for the device to distinguish the correct encrypted information, resulting in encryption failure due to external interference, which in turn affects the interpretation of the information and causes the loss of communication information. Summary of the Invention

[0005] To this end, the present invention provides an electromagnetic security communication method and system to overcome the problem in the prior art of securely identifying information only through encryption. In a more complex electromagnetic environment, it is generally difficult for devices to distinguish the correct encrypted information, resulting in information loss due to external interference.

[0006] To achieve the above objectives, the present invention provides, on the one hand, an electromagnetic safety communication method, comprising: Set up several communication intervals and several corresponding communication levels; determining a number of communication levels corresponding to the communication behavior as level response packets, and a number of terminals corresponding to the communication behavior; placing each terminal in the communication interval; Pre-establishing the communication behavior and broadcasting a level response packet; Determine whether a single terminal can establish a communication channel based on the communication interval of each terminal; In response to the level response packet containing at most one communication interval corresponding to the communication level, the terminal establishes a surface communication channel; In response to the level response packet containing at least two communication intervals corresponding to the communication level, the terminal establishes a deep communication channel; Among them, a single terminal corresponds to at least a single communication interval; the number of the communication intervals is the same as the number of the communication levels and corresponds to each other; when establishing the deep communication channel, the surface communication channel is used as a basis.

[0007] Furthermore, the step of determining a number of communication levels corresponding to a single communication behavior includes: Determine the communication interval corresponding to the source terminal, and determine the corresponding highest communication level according to the communication interval; Determining a maximum number of channels to which the communication behavior can be applied according to the highest communication level; Setting a number of communication levels not greater than the maximum number of channels; wherein each communication level is not greater than the highest communication level; The source terminal is the terminal that initiates the communication behavior.

[0008] Furthermore, for the single communication behavior, the step of determining the corresponding level response packet includes: Decomposing the communication behavior into a plurality of communication contents according to the highest communication level; Associating each communication content with the communication level key; The communication level key corresponding to each communication level is placed in the level response packet.

[0009] Further, when determining the corresponding level response packet, if the communication interval of the receiving terminal exists in the level response packet, the receiving terminal responds to the communication behavior and establishes a corresponding surface communication channel and / or deep communication channel; When acquiring the communication content, the receiving terminal acquires the corresponding communication content according to the communication level key.

[0010] Furthermore, for the single communication behavior, the step of determining the corresponding level response packet includes: determining a plurality of communication contents of the communication behavior and performing content classification on each content; Encrypting each communication content at a communication level according to the content classification; Determining a corresponding communication level according to the number of content levels, and forming the level response packet; wherein the number of the content levels is equal to the number of communication levels in the level response packet; The communication level encryption is performed by utilizing the number of accesses to the communication channel.

[0011] Further, when the corresponding level response packet is determined, the receiving terminal responds to the communication behavior and establishes a corresponding surface communication channel and / or deep communication channel; When acquiring the communication content, the receiving terminal acquires a number of communication contents according to the number of established communication channels, and decrypts each content according to the level response packet.

[0012] Furthermore, the communication section is further provided with a buffer zone for broadcasting the level response packet.

[0013] Furthermore, the step of determining whether a single terminal can establish a communication channel includes: Determining each communication interval in which the terminal is located; establishing the surface communication channel and receiving the level response packet; comparing each communication level in the level response packet with each communication interval; If the level response packet does not include the communication interval of the terminal, the surface communication channel is disconnected.

[0014] In another aspect, the present invention provides an electromagnetic safety communication system, comprising a plurality of terminals and a distributor, and further comprising: A key distributor, connected to each terminal and the distributor, for placing each terminal into a corresponding communication interval and distributing a key corresponding to the communication interval to each terminal; a communication encryption station connected to each of the terminals, for classifying the communication content and encrypting them separately; a communication distribution station connected to the communication encryption station, for dividing the communication content into several communication levels according to the encryption result; The distributor broadcasts the communication content in different communication intervals according to the communication level.

[0015] Furthermore, for a single terminal, it can at least receive the communication interval corresponding to the pre-established communication behavior, and, a number of intervals utilized to actually establish the communication behavior; If the single terminal is unable to receive the pre-established corresponding information of the communication behavior, the terminal does not access the communication behavior.

[0016] Compared with the prior art, the beneficial effect of the present invention lies in that, by setting up several different communication intervals and communication levels, the communication information is disassembled, and the corresponding information is sent and received using different channels, so that different information is transmitted using different channels. At the same time, the communication channel is judged by the terminal, and the information recipient determines whether to receive the information. While effectively improving the communication security, the information is transmitted using multiple channels, thereby effectively improving the stability of information transmission, preventing information from being stolen, and effectively improving the security of communication information.

[0017] Furthermore, by setting the highest communication level and dividing several channels according to the highest communication level, the communication information is dynamically divided. At the same time, by forcibly dividing each terminal into a specific communication interval, the theft of communication information using electromagnetic equipment is prevented, thereby effectively improving the security of communication information.

[0018] Furthermore, the receiving terminal independently decides whether to establish a channel by comparing the level response packet with its own communication interval. At the same time, the selection of surface and deep channels is dynamically triggered by the receiver according to the matching number of level response packets, so that the communication link is always adapted to the terminal security level in real time. While effectively preventing the loss of communication information in complex electromagnetic environments, it further improves the stability of information transmission.

[0019] The beneficial effect of the present invention is that, by setting up several terminals and distributors for conventional sending and receiving of communication information, and adding a key distributor, a communication encryption station, and a communication distribution station, the communication information is divided and sent to different channels respectively. At the same time, using the distributor as a carrier of communication behavior can effectively avoid external intrusion through the terminal, thereby effectively improving the stability of information transmission and effectively improving the security of communication information.

[0020] Furthermore, by setting a buffer zone to pre-link the terminals, the problem of intrusion of electromagnetic communications by terminal devices is avoided, and the security of communication information is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a flow chart of the electromagnetic safety communication method of the present invention; Figure 2 A flow chart for determining several communication levels according to an embodiment of the present invention; Figure 3 A first type of flow chart for determining a level response packet according to an embodiment of the present invention; Figure 4 A second type of flow chart for determining a level response packet according to an embodiment of the present invention; Figure 5 This is a connection diagram of the electromagnetic safety communication system of the present invention. DETAILED DESCRIPTION

[0022] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0023] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0024] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0025] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] See also Figure 1 As shown, it is a flow chart of the electromagnetic safety communication method of the present invention, which is characterized by including: Step S1, setting a number of communication intervals and a number of corresponding communication levels; Step S2, determining a number of communication levels corresponding to the communication behavior as level response packets, and a number of terminals corresponding to the communication behavior; Step S3, placing each terminal in a communication zone; Step S4: pre-establish communication behavior and broadcast a level response packet; Step S5, determining whether a single terminal can establish a communication channel based on the communication interval of each terminal; Step S6a: The response level response packet includes at most one communication interval corresponding to the communication level, and the terminal establishes a surface communication channel; Step S6b: The response level response packet includes at least two communication intervals corresponding to the communication level, and the terminal establishes a deep communication channel; Among them, a single terminal corresponds to at least a single communication interval; the number of communication intervals is the same as that of communication levels and they correspond to each other; when establishing a deep communication channel, the surface communication channel is used as the basis.

[0027] By setting up several different communication intervals and communication levels, the communication information is disassembled, and the corresponding information is sent and received using different channels, so that different information is transmitted using different channels. At the same time, the communication channel is judged by the terminal, and the information recipient determines whether to receive the information. While effectively improving the communication security, the information is transmitted using multiple channels, thereby effectively improving the stability of information transmission and effectively preventing information leakage.

[0028] Example 1: A competition command center needs to send event logistics instructions to multiple event support units (such as photography equipment, security, and support vehicles). Some of this information is highly confidential (such as support locations and times), while some is more general (such as event routes and mission numbers). To prevent electromagnetic interference, a multi-level secure communication mechanism is required.

[0029] Implementation steps: Set the communication range and communication level: Divide into 3 communication intervals (A, B, C), corresponding to 3 communication levels (level 1 is the highest confidentiality, level 3 is the lowest confidentiality).

[0030] The command center (source terminal) itself belongs to interval A (the highest authority).

[0031] Photographic equipment belongs to sections A and B, security belongs to sections B and C, and security vehicles belong only to section C.

[0032] Determine the communication level and generate a level response packet: This communication behavior contains three levels of information: Level 1 (A Zone): Logistics Support Location (Encrypted) Level 2 (B Zone): Logistics Support Time (Encrypted) Level 3 (C Section): Event Path (Plain Text) Generate a level response packet containing three communication level keys: A, B, and C.

[0033] Terminal access and channel establishment: Photography equipment (A and B sections): After receiving the level response packet, it is found that the two intervals A and B match, so a deep communication channel is established to decrypt level 1 and level 2 information.

[0034] Safety assurance (B and C intervals): Matching intervals B and C establishes a deep communication channel, which can decrypt level 2 and level 3 information.

[0035] Support vehicle (C section only): Only matches the C interval, establishes a surface communication channel, and can only receive level 3 information (event path).

[0036] Security and stability guarantee: Even if part of the channel is intercepted (such as section C), it is impossible to obtain the complete event logistics instructions (the keys for sections A and B are missing).

[0037] If section B is disturbed, the photographic equipment can still receive core instructions through section A, and security protection is downgraded to rely on information from section C to ensure that basic communications are not interrupted.

[0038] Example 2: A bank needs to send transaction data to multiple branches. Some information (such as customer account numbers and transaction amounts) requires high-level encryption, while some (such as transaction status and timestamps) can be transmitted at a lower level. To prevent man-in-the-middle attacks and data leaks, a multi-channel secure communication solution is used.

[0039] Implementation steps: Set the communication range and communication level: Divide into 4 communication intervals (P, Q, R, S), corresponding to 4 communication levels (P is the highest and S is the lowest).

[0040] The head office server (source terminal) belongs to the P interval, the branch terminal belongs to the P and Q intervals, the sub-branch terminal belongs to the Q and R intervals, and the ATM belongs only to the S interval.

[0041] Determine the communication level and generate a level response packet: The transaction data is broken down into: P-level (P range): Customer account information (AES-256 encryption) Q level (Q interval): transaction amount (RSA encryption) R level (R range): transaction status (light encryption) S level (S interval): timestamp (plain text) Generate a level response packet containing four communication level keys: P, Q, R, and S.

[0042] Terminal access and channel establishment: Branch terminal (P, Q area): Matching the P and Q intervals, establishing a deep communication channel, can decrypt P-level (account) and Q-level (amount) information.

[0043] Branch terminals (Q and R zones): Matching the Q and R intervals to establish a deep communication channel can decrypt Q-level (amount) and R-level (status) information.

[0044] ATM (S section only): Only match the S interval, establish a surface communication channel, and only receive timestamps (S level).

[0045] Security and stability guarantee: Even if hackers invade the ATM network (S interval), they cannot obtain account or amount information (P, Q interval keys are required).

[0046] If packet loss occurs in the Q interval due to network fluctuations, the branch can still obtain transaction status through the R interval to ensure business continuity.

[0047] It is understandable that the above embodiments are only examples, and no actual scenario involves the above content.

[0048] As an alternative, the communication interval can be: security domain, where terminals with different security levels are divided into different domains (such as core domain, edge domain, and public domain); A virtual private group is based on logical isolation rather than physical isolation, similar to VPN tunnel grouping, but supports dynamic membership management.

[0049] It is understandable that the communication interval can be composed of electromagnetic waves of different frequencies, and the form of the communication interval is not unique, as long as physical or software isolation can be achieved.

[0050] Communication levels can be: information classification levels, such as: Top Secret, Secret, Internal, Public; Priority weight, which uses a numerical value (such as 0-100) to represent the priority of information. High-weight information requires stricter encryption.

[0051] Context-sensitive level, which dynamically adjusts the level based on the communication environment (such as geographical location and network status).

[0052] The communication channel can be replaced by: 1. Physical layer channel Frequency Division Multiplexing (FDMA): Different levels of information are assigned different frequency bands (e.g., level 1 uses the high frequency band, and level 2 uses the medium frequency band).

[0053] Space Division Multiple Access (SDMA): Independent spatial channels are allocated to different terminals through directional antennas or beamforming technology.

[0054] 2. Network layer channel Multiprotocol Label Switching (MPLS): Assign independent label paths to different levels of data to achieve logical isolation.

[0055] Overlay Network: Build virtual private tunnels on top of existing networks (like Tor's onion routing, but hierarchical).

[0056] 3. Application layer channel Microservice Channel: Decompose different levels of information into independent microservices and dynamically route them through the API gateway.

[0057] Blockchain Sharding: High-level data is stored in private shards, and low-level data is stored in the public chain.

[0058] See also Figure 2 As shown, it is a flow chart of determining several communication levels according to an embodiment of the present invention, including: Step S101, determining the communication interval corresponding to the source terminal, and determining the corresponding highest communication level according to the communication interval; Step S102, determining the maximum number of channels applicable to the communication behavior according to the highest communication level; Step S103, setting a number of communication levels not greater than the maximum number of channels; Among them, each communication level is not greater than the highest communication level; The source terminal is the terminal that initiates the communication behavior.

[0059] See also Figure 3 As shown, it is a first type of flow chart for determining a level response packet according to an embodiment of the present invention. For a single communication behavior, the steps of determining the corresponding level response packet include: Step S201a, breaking down the communication behavior into several communication contents according to the highest communication level; Step S202a, associating each communication content with a communication level key; Step S203a: Place the communication level key corresponding to each communication level into the level response packet.

[0060] Specifically, when determining the corresponding level response packet, if the communication interval of the receiving terminal exists in the level response packet, the receiving terminal responds to the communication behavior and establishes a corresponding surface communication channel and / or deep communication channel; When acquiring communication content, the receiving terminal acquires the corresponding communication content according to the communication level key.

[0061] By setting the highest communication level and dividing several channels according to the highest communication level, communication information is dynamically divided. At the same time, by forcibly dividing each terminal into a specific communication interval, the theft of communication information using electromagnetic equipment is prevented, thereby effectively improving the security of communication information.

[0062] Example 3: Based on Example 1, the event command center (source terminal) is located in communication section A, and its highest communication level is level 1 (highest confidentiality level).

[0063] Determine the maximum number of channels According to the highest communication level 1, the maximum number of channels that can be used for this communication behavior is 3 (corresponding to 3 communication levels: Level 1, Level 2, and Level 3).

[0064] Set the communication level for this communication The logistics instructions for this event are divided into three communication levels: Level 1 (Highest Secret, Zone A): Logistics Support Location (AES-256 Encryption) Level 2 (Medium Confidentiality, Section B): Logistics Support Time (RSA Encryption) Level 3 (low density, C range): event path (light encryption) Generate Level Response Packet Disassemble the communication content and associate the communication level key Level 1 content (logistics support location) binding key ; Level 2 content (logistics support time) binding key ; Level 3 Content (Event Path) Binding Key Build a Level Response Package LevelResponsePackage={ , , }; Terminal response and communication channel establishment Photography equipment (communication sections A and B) The level response package contains the A and B interval keys ( , ), matching ≥2 communication levels → establishing a deep communication channel, which can decrypt level 1 and level 2 content.

[0065] Security assurance (communication sections B and C) The level response package contains the B and C interval keys ( , ), matching ≥2 communication levels → establishing a deep communication channel, which can decrypt level 2 and level 3 content.

[0066] Support vehicle (communication section C only) Level response packets only match C interval keys ( ) → Establishes a surface communication channel, capable of decrypting only Level 3 content.

[0067] Example 4: Based on Example 2, the bank head office server (source terminal) is located in communication zone P, and its highest communication level is level 1 (highest confidentiality level).

[0068] Determine the maximum number of channels According to the highest communication level 1, the maximum number of channels that can be used for this transaction data is 4 (corresponding to 4 communication levels: Level 1, Level 2, Level 3, and Level 4).

[0069] Set the communication level for this communication This transaction data is divided into 4 communication levels: Level 1 (P Zone): Customer Accounts (AES-256 Encryption) Level 2 (Q interval): transaction amount (RSA encryption) Level 3 (R range): Transaction status (light encryption) Level 4 (S interval): Timestamp (plaintext) Generate Level Response Packet Disassemble the communication content and associate the communication level key Level 1 content (account) binding key ; Level 2 content (amount) binding key ; Level 3 content (state) binding key ; Level 4 content (timestamp) binding key Build a Level Response Package LevelResponsePackage={ , , , } Terminal response and communication channel establishment Branch terminal (communication intervals P, Q) Level response packet matches P, Q interval key ( , ) → Establishes a deep communication channel, capable of decrypting Level 1 and Level 2 content.

[0070] Branch terminal (communication intervals Q, R) Level response packet matches Q, R interval key ( , ) → Establishes a deep communication channel, capable of decrypting Level 2 and Level 3 content.

[0071] ATM (communication zone S only) Level response packets only match S interval keys ( ) → Establish a surface communication channel, only able to decrypt Level 4 content (timestamp).

[0072] in, 、 、 、 Indicates the key in the message, ( , ) indicates the key held by the terminal.

[0073] See also Figure 4 As shown, it is a second type of flow chart for determining a level response packet according to an embodiment of the present invention. For a single communication behavior, the steps of determining the corresponding level response packet include: Step S201b, determining a number of communication contents of the communication behavior, and classifying each content; Step S202b, encrypting each communication content according to the content classification; Step S203b, determining the corresponding communication level according to the number of content levels, and forming a level response packet; Wherein, the number of content levels is equal to the number of communication levels in the level response packet; Communication-level encryption uses the number of access communication channels for encryption.

[0074] Specifically, when determining the corresponding level response packet, the receiving terminal responds to the communication behavior and establishes a corresponding surface communication channel and / or deep communication channel; When acquiring communication content, the receiving terminal acquires a number of communication contents according to the number of established communication channels, and decrypts each content according to the level response packet.

[0075] The receiving terminal independently decides whether to establish a channel by comparing the level response packet with its own communication interval. At the same time, the selection of surface and deep channels is dynamically triggered by the receiver based on the matching number of level response packets, so that the communication link is always adapted to the terminal security level in real time. While effectively preventing the loss of communication information in complex electromagnetic environments, it further improves the stability of information transmission.

[0076] Example 5: Based on Example 1, the communication information includes the following communication content: 1. Identify and categorize communications 1.1 The logistics instructions for this event include the following communications: Logistics Support Location (Top Secret) Logistics Support Time (Confidential) Logistics Formation (Secret Level) Competition Path (Internal Level) 1.2 Content rating results: Level 1 (Top Secret): Logistics Support Location Level 2 (Secret): Logistics Time Level 3 (Secret): Logistics Formation Level 4 (Internal): Event Path 2. Communication-level encryption 2.1 Encrypting each graded content: Level 1 content is encrypted using quantum keys Level 2 content is encrypted with AES-256 Level 3 content is encrypted using RSA-2048 Level 4 content uses lightweight encryption 2.2 Encryption method and number of channels: Level 1 encryption requires 4 independent channels for authentication Level 2 encryption requires 3 independent channels for verification Level 3 encryption requires two independent channels for verification Level 4 encryption requires 1 channel verification 3. Build a level response package 3.1 Determine the number of communication levels: There are 4 content levels in total, corresponding to 4 communication levels 3.2 Generate level response package: Contains 4 communication level keys: {K_Q1, K_A2, K_R3, K_L4} 4. Terminal response and communication establishment 4.1 Command Center Terminal (Level 1-4): Match all 4 communication levels Establishing deep communication channels (4) Can decrypt all communications 4.2 Combat Unit Terminal (Level 2-4): Match 3 communication levels (level 2-4) Establishing deep communication channels (3) Can decrypt level 2-4 content 4.3 Logistics Unit Terminal (Level 4): Only matches 1 communication level Establishing surface communication channels Can only decrypt Level 4 content Example 6: Based on Example 2, the financial transaction content includes: 1. Identify and categorize communications 1.1 The transaction data includes: Customer biometrics (premium) Transaction Amount (Advanced) Account Information (Intermediate) Trading Hours (Basic Level) 1.2 Content rating results: Level 1 (Special): Biometrics Level 2 (Advanced): Transaction Amount Level 3 (Intermediate): Account Information Level 4 (Basic): Trading Hours 2. Communication-level encryption 2.1 Hierarchical encryption scheme: Level 1: Homomorphic encryption + blockchain verification Level 2: SM4 national secret algorithm Level 3: AES-128 encryption Level 4: Basic Encryption 2.2 Encryption strength is associated with the channel: Level 1 requires 5 channels for verification Level 2 requires 3 channels for verification Level 3 requires 2 channels for verification Level 4 requires 1 channel verification 3. Build a level response package 3.1 Communication level determination: 4 content ratings correspond to 4 communication levels 3.2 Level Response Package Contents: {K_H1, K_S2, K_A3, K_B4} 4. Terminal response and communication establishment 4.1 Head Office Core System (Authority Levels 1-4): Match all communication levels Establish 5 deep communication channels Can decrypt all transaction data 4.2 Branch System (Authority Level 2-4): Match 3 communication levels Establish 3 deep communication channels Can decrypt level 2-4 content 4.3 ATM Terminal (Authorization Level 4): Match only base level Establishing surface communication channels Only transaction time can be viewed The prefix indicates the encryption type (Q-quantum key, A-AES, R-RSA, L-lightweight, H-homomorphic, S-SM4, B-basic), and the number indicates the communication level, such as: H1 is the first level using homomorphic encryption.

[0077] Specifically, the communication section also has a buffer zone for broadcasting level response packets.

[0078] Specifically, the steps of determining whether a single terminal can establish a communication channel include: Determining each communication interval in which the terminal is located; Establishing a surface communication channel and receiving level response packets; Compare each communication level in the level response packet with each communication interval; If the level response packet does not include the terminal's communication interval, the surface communication channel is disconnected.

[0079] See also Figure 5 As shown, it is a connection diagram of the electromagnetic safety communication system of the present invention, including: Several terminals; Allocator; A key distributor, connected to each terminal and the distributor, is used to place each terminal into a corresponding communication zone and distribute the key corresponding to the communication zone to each terminal; The communication encryption station is connected to each terminal to classify the communication content and encrypt it separately; The communication distribution station is connected to the communication encryption station and is used to divide the communication content into several communication levels according to the encryption results; The distributor broadcasts the communication content in different communication intervals according to the communication level.

[0080] By setting up several terminals and distributors for regular transmission and reception of communication information, and adding key distributors, communication encryption stations, and communication distribution stations, the communication information can be divided and sent to different channels respectively. At the same time, using distributors as the carriers of communication behavior can effectively avoid external intrusion through terminals, thereby effectively improving the stability of information transmission and effectively improving the security of communication information.

[0081] Specifically, for a single terminal, it can at least receive a communication interval corresponding to a pre-established communication behavior. and, a number of intervals utilized to actually establish the communication behavior; If a single terminal cannot receive the pre-established corresponding information of the communication behavior, the terminal does not access the communication behavior.

[0082] By setting up a buffer zone to pre-link the terminals, the problem of intrusion of electromagnetic communications by terminal devices is avoided, and the security of communication information is effectively improved.

[0083] It can be understood that in the above system, any terminal can serve as a source terminal to provide information, and at the same time, any terminal can also serve as a receiving terminal to receive information.

[0084] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

[0085] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An electromagnetic safety communication method, characterized in that: include: Set up several communication intervals and several corresponding communication levels; determining a number of communication levels corresponding to the communication behavior as level response packets, and a number of terminals corresponding to the communication behavior; placing each terminal in the communication interval; Pre-establishing the communication behavior and broadcasting a level response packet; Determine whether a single terminal can establish a communication channel based on the communication interval of each terminal; In response to the level response packet containing at most one communication interval corresponding to the communication level, the terminal establishes a surface communication channel; In response to the level response packet containing at least two communication intervals corresponding to the communication level, the terminal establishes a deep communication channel; Among them, a single terminal corresponds to at least a single communication interval; the number of the communication intervals is the same as the number of the communication levels and corresponds to each other; when establishing the deep communication channel, the surface communication channel is used as a basis.

2. The electromagnetic safety communication method according to claim 1, characterized in that: The steps of determining a number of communication levels corresponding to a single communication behavior include: Determine the communication interval corresponding to the source terminal, and determine the corresponding highest communication level according to the communication interval; Determining a maximum number of channels to which the communication behavior can be applied according to the highest communication level; Setting a number of communication levels not greater than the maximum number of channels; wherein each communication level is not greater than the highest communication level; The source terminal is the terminal that initiates the communication behavior.

3. The electromagnetic safety communication method according to claim 2, characterized in that: For the single communication behavior, the step of determining the corresponding level response packet includes: Decomposing the communication behavior into a plurality of communication contents according to the highest communication level; Associating each communication content with the communication level key; The communication level key corresponding to each communication level is placed in the level response packet.

4. The electromagnetic safety communication method according to claim 3, characterized in that: When determining the corresponding level response packet, if the level response packet contains the communication interval of the receiving terminal, the receiving terminal responds to the communication behavior and establishes a corresponding surface communication channel and / or deep communication channel; When acquiring the communication content, the receiving terminal acquires the corresponding communication content according to the communication level key.

5. The electromagnetic safety communication method according to claim 2, characterized in that: For the single communication behavior, the step of determining the corresponding level response packet includes: determining a plurality of communication contents of the communication behavior and performing content classification on each content; Encrypting each communication content at a communication level according to the content classification; Determining a corresponding communication level according to the number of content levels, and forming the level response packet; wherein the number of the content levels is equal to the number of communication levels in the level response packet; The communication level encryption is performed by utilizing the number of accesses to the communication channel.

6. The electromagnetic safety communication method according to claim 5, characterized in that: When the corresponding level response packet is determined, the receiving terminal responds to the communication behavior and establishes a corresponding surface communication channel and / or deep communication channel; When acquiring the communication content, the receiving terminal acquires a number of communication contents according to the number of established communication channels, and decrypts each content according to the level response packet.

7. The electromagnetic safety communication method according to claim 4 or 6, characterized in that: The communication section is further provided with a buffer zone for broadcasting the level response packet.

8. The electromagnetic safety communication method according to claim 7, characterized in that: The steps of determining whether a single terminal can establish a communication channel include: Determining each communication interval in which the terminal is located; establishing the surface communication channel and receiving the level response packet; comparing each communication level in the level response packet with each communication interval; If the level response packet does not include the communication interval of the terminal, the surface communication channel is disconnected.

9. An electromagnetic safety communication system, comprising several terminals and distributors, characterized in that: Also includes: A key distributor, connected to each terminal and the distributor, for placing each terminal into a corresponding communication interval and distributing a key corresponding to the communication interval to each terminal; a communication encryption station connected to each of the terminals, for classifying the communication content and encrypting them separately; a communication distribution station connected to the communication encryption station, for dividing the communication content into several communication levels according to the encryption result; The distributor broadcasts the communication content in different communication intervals according to the communication level.

10. The electromagnetic safety communication system according to claim 9, characterized in that: For a single terminal, it is at least capable of receiving the communication interval corresponding to the pre-established communication behavior. and, a number of intervals utilized to actually establish the communication behavior; If the single terminal is unable to receive the pre-established corresponding information of the communication behavior, the terminal does not access the communication behavior.

Images