Security data distribution method based on single network and whole network

Abstract

The invention discloses a secure data distribution method based on a single network and a whole network, and the method employs a secure data distribution protocol for secure data distribution, the secure data distribution protocol comprises sending information and response information, and the frame formats of the sending information and the response information are different; in the security data distribution process, an interframe response mechanism and a retransmission mechanism are adopted. The method is composed of a sending message and a response message, and each type of message has a unique frame format; the data receiving security is ensured by an interlaced frame response mechanism and a retransmission mechanism; therefore, the transmitted data can be received without errors.

Description

Technical Field

[0001] The invention belongs to the technical field of wireless communications and relates to a secure data distribution method based on a single full network. Background Art

[0002] like Figure 1 As shown in the figure, a single full network is a mobile platform network with a small number of users and a single functional requirement. Each network member communication terminal adopts a one-transmit-N-receive network architecture, which can receive data from the remaining N network users while transmitting, greatly improving the network data transmission capacity. Using the frequency division mode, each network member communication terminal is allocated a dedicated frequency point, which will not cause frequency interference while achieving full-duplex communication. The network is established as soon as it is turned on, and no routing and network management resource overhead is required to achieve real-time interconnection between network members. In addition, a single full network has the following two characteristics:

[0003] (1) All members can send messages at the same time.

[0004] (2) At the same time, any member can also receive messages from all other members.

[0005] Compared with the time-sharing networking system, the network capacity has increased many times.

[0006] The present invention designs a secure data distribution method based on a single full network in view of the characteristics of the single full network, thereby ensuring that all sent data can be received without errors. Summary of the invention

[0007] (I) Purpose of the invention

[0008] The purpose of the present invention is to design a secure data distribution method based on a single full network according to the characteristics of the single full network, so as to realize that all sent data can be received without errors.

[0009] (II) Technical solution

[0010] In order to solve the above technical problems, the present invention provides a secure data distribution method based on a single full network, which includes: the method adopts a secure data distribution protocol to distribute secure data, the secure data distribution protocol includes sending information and response information, and the frame formats of the sending information and the response information are different; during the secure data distribution process, an inter-frame response mechanism and a retransmission mechanism are adopted.

[0011] The method is implemented by a multi-channel wireless communication device installed on a mobile platform.

[0012] The frame format of the message sent includes N bytes, 1 and 2 bytes are the destination member number, 3 byte is the message frame count, 4 byte is the data length, 5 to N-1 bytes are data, and N byte is the checksum.

[0013] In the frame format of sending a message, the destination member number is recorded as An, and n represents the member sequence number.

[0014] Among them, in the frame format of the sent message, the content of the message frame count is 0-255, and the content of the data length is N-5.

[0015] Among them, in the frame format of the sent message, the checksum is the lower 8 bits of the cumulative result of all bytes from 1 to N-1.

[0016] The frame format of the response message includes 4 bytes, bytes 1 and 2 are the destination member number, byte 3 is the message frame count, and byte 4 is the checksum. The checksum is the lower 8 bits of the cumulative result of all bytes 1 to 3.

[0017] In the frame format of the response message, the destination member number is recorded as An, n represents the member sequence number; the content of the message frame count is 0-255.

[0018] Among them, the inter-frame response mechanism and retransmission mechanism are as follows: after sending message 1, directly send message 2. If the response of message 1 is received during the sending of message 2, continue to send message 3, and so on. If the response of message 2 is not received during the sending of message 3, after sending message 3, resend message 2 and message 3 until the response of message 2 is received, and then continue to send other messages.

[0019] When a single full network has two members, the security data distribution process based on the single full network is:

[0020] In the first step, after power-on, network members form a single full network based on the initially bound frequencies;

[0021] In the second step, assume that member A1 sends a message to member A2 in the frame format of sending a message;

[0022] In the third step, after receiving the message, member A2 responds to member A1 in the response message frame format; at the same time, it complies with the inter-frame response mechanism and retransmission mechanism.

[0023] (III) Beneficial effects

[0024] The above technical solution provides a secure data distribution method based on a single full network, which consists of two types of messages: sending messages and response messages. Each type of message has a unique frame format. The inter-frame response mechanism and retransmission mechanism ensure the security of data reception, and ensure that all sent data can be received without errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of three-user single full network communication.

[0026] Figure 2 Data distribution diagram. DETAILED DESCRIPTION

[0027] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0028] This embodiment provides a secure data distribution method based on a single full network. The method adopts a secure data distribution protocol to distribute secure data. The secure data distribution protocol includes sending information and response information. The frame formats of the sending information and the response information are different. During the secure data distribution process, an inter-frame response mechanism and a retransmission mechanism are adopted.

[0029] The data distribution method of this embodiment is implemented by a multi-channel wireless communication device installed on a mobile platform.

[0030] The frame format of the sent message is as follows:

[0031]

[0032] In the frame format of the sent message, the checksum is the lower 8 bits of the accumulated result of all bytes from 1 to N-1.

[0033] The frame format of the response message is as follows:

[0034]

[0035] In the frame format of the response message, the checksum is the lower 8 bits of the accumulated result of all bytes 1 to 3.

[0036] In this embodiment, the inter-frame response mechanism and the retransmission mechanism are described as follows:

[0037] like Figure 2 As shown, in order to ensure transmission efficiency, after sending message 1, message 2 is sent directly. If a response to message 1 is received during the sending of message 2, message 3 is sent, and so on. If a response to message 2 is not received during the sending of message 3, after sending message 3, message 2 and message 3 are resent until a response to message 2 is received, and then other messages are sent.

[0038] Taking two members as an example, the security data distribution process based on a single full network is as follows:

[0039] In the first step, after power-on, network members form a single full network based on the initially bound frequencies.

[0040] In the second step, assume that member A1 sends a message to member A2 in the frame format for sending messages.

[0041] In the third step, after receiving the message, member A2 responds to member A1 in the response message frame format; at the same time, it complies with the inter-frame response mechanism and retransmission mechanism.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A secure data distribution method based on a single full network, characterized in that: The method adopts a secure data distribution protocol to distribute secure data. The secure data distribution protocol includes sending information and response information. The frame formats of the sending information and the response information are different. During the secure data distribution process, an alternate frame response mechanism and a retransmission mechanism are adopted.

2. The method for distributing secure data based on a single network as claimed in claim 1, characterized in that: The method is implemented by a multi-channel wireless communication device installed on a mobile platform.

3. The method for distributing secure data based on a single network as claimed in claim 2, characterized in that: The frame format of the message sent includes N bytes, 1 and 2 bytes are the destination member number, 3 byte is the message frame count, 4 byte is the data length, 5 to N-1 bytes are data, and N byte is the checksum.

4. The method for distributing secure data based on a single network as claimed in claim 3, characterized in that: In the frame format of sending messages, the destination member number is recorded as An, and n represents the member sequence number.

5. The method for distributing secure data based on a single network as claimed in claim 4, characterized in that: In the frame format of the sent message, the message frame count content is 0-255, and the data length content is N-5.

6. The method for distributing secure data based on a single network as claimed in claim 5, characterized in that: In the frame format of the sent message, the checksum is the lower 8 bits of the accumulated result of all bytes from 1 to N-1.

7. The method for distributing secure data based on a single network as claimed in claim 6, characterized in that: The frame format of the response message includes 4 bytes, bytes 1 and 2 are the destination member number, byte 3 is the message frame count, and byte 4 is the checksum. The checksum is the lower 8 bits of the cumulative result of all bytes 1 to 3.

8. The method for distributing secure data based on a single network as claimed in claim 7, characterized in that: In the frame format of the response message, the destination member number is recorded as An, n represents the member sequence number; the content of the message frame count is 0-255.

9. The method for distributing secure data based on a single network as claimed in claim 8, characterized in that: The inter-frame response mechanism and retransmission mechanism are as follows: after sending message 1, directly send message 2. If a response to message 1 is received during the sending of message 2, continue to send message 3, and so on. If a response to message 2 is not received during the sending of message 3, after sending message 3, resend message 2 and message 3 until a response to message 2 is received, and then continue to send other messages.

10. The method for distributing secure data based on a single network as claimed in claim 9, characterized in that: When a single full network has two members, the secure data distribution process based on the single full network is: In the first step, after power-on, network members form a single full network based on the initially bound frequencies; In the second step, assume that member A1 sends a message to member A2 in the frame format of sending a message; In the third step, after receiving the message, member A2 responds to member A1 in the response message frame format; at the same time, it complies with the inter-frame response mechanism and retransmission mechanism.

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