Node management system based on communication transmission

Abstract

The invention discloses a node management system based on communication transmission. An operation method of the system comprises the following steps: carrying out structural design processing on the node management system; performing time-frequency synchronization and modulation management on the node management system; analyzing, optimizing and managing the node management system; carrying out data information acquisition and storage control on the node management system; the structural design processing of the node management system comprises the following steps: carrying out node hierarchical distribution structural design management on the node management system, taking a frequency source as a unique source node of the system, a first-level node and a high-precision time frequency reference of the whole system, and meanwhile, controlling time frequency signals of the system to be distributed through the source node, and the relay node and the source node directly carry out time-frequency synchronization. The step of carrying out time-frequency synchronization and modulation management on the node management system comprises the step of carrying out time-frequency synchronization processing through a tree structure. The system has the advantages of being high in stability and efficient in management control.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a node management system based on communication transmission. Background Art

[0002] In the field of modern remote control and telemetry, the controlled objects are often moving at high speed or thousands of miles above the ground, and it is impossible to use a single device to directly complete their measurement and control tasks. When multiple equipment systems work simultaneously, high-precision time and frequency synchronization becomes extremely important. Taking microwave ranging as an example, if the time synchronization accuracy of different devices differs by 1ns, the measured distance error will be as much as 30cm. Therefore, for the modern long-distance high-precision measurement and control field represented by aerospace and remote control and telemetry technology, the development of high-precision time and frequency synchronization technology is crucial. However, with the widespread application of time and frequency synchronization, traditional point-to-point optical fiber time and frequency synchronization can no longer meet the development needs of distributed and networked equipment due to complex equipment, high prices, and poor reusability. The existing time and frequency synchronization technology can no longer meet the needs of high-precision clock comparison. Therefore, it is necessary to design a node management system based on communication transmission with strong stability and efficient management and control. Summary of the invention

[0003] The purpose of the present invention is to provide a node management system based on communication transmission to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a node management method based on communication transmission, comprising: Carry out structural design of node management system; Perform time-frequency synchronization and modulation management on the node management system; Conduct analysis and optimization management of node management system; Carry out data information collection, storage and control of the node management system; The structural design process of the node management system includes: The node management system is designed and managed with a hierarchical node distribution structure. The frequency source is used as the only source node of the system, a first-level node, and a high-precision time and frequency reference for the entire system. At the same time, all time and frequency signals of the control system are distributed through the source node, and the relay node is directly synchronized with the source node in time and frequency.

[0005] According to the above technical solution, the time-frequency synchronization and modulation management of the node management system includes: Through the tree structure, time and frequency synchronization is carried out, so that the relay node and the peripheral node can perform point-to-point time and frequency transmission, and the peripheral nodes attached to the transmission link can perform time and frequency synchronization by downloading from any node; The node management system is modulated by a pseudo-random code (PN code). After the system signal source generates a time-frequency signal, the shift register is controlled to generate a pseudo-random code based on the system signal source clock. The pseudo-random code is XOR-added with the digital modulation signal to generate an encrypted frequency standard signal modulated by the pseudo-random code. The signal is further converted into an analog signal through a retainer. The analog signal is amplitude modulated (AM) by a carrier with a wavelength of 1550nm. The obtained optical microwave signal frequency is directly input into the transmission link for signal transmission.

[0006] According to the above technical solution, the analysis and optimization management of the node management system includes: The time standard transmission method is adopted to control the signal transmission and measure the pseudo delay in the transmission process. The precise delay measurement is completed by canceling the pseudo delay data of the transmitting node and the receiving node, so as to determine the delay of the two and compensate for it, so as to achieve the purpose of precise synchronization of the system time standard.

[0007] According to the above technical solution, the analysis and optimization management of the node management system further includes: After the receiving node receives the optical microwave signal, it first demodulates the carrier signal through the photoelectric conversion device, so that the demodulated signal contains the pseudo code modulation signal of the pseudo code information, and further samples the signal with the sampling device to digitize it, and repeatedly generates the pseudo code signal of the modulated signal at the transmitting node end through the shift register at the receiving node end, and demodulates the digital pseudo code modulation signal through the pseudo code demodulation process, and outputs the frequency standard signal; When both the time-frequency synchronization transmitting end and the output end have high-precision time-frequency references that meet the set requirements, a two-way signal transmission method is used for link transmission processing.

[0008] According to the above technical solution, the data information collection and storage control of the node management system includes: Collect real-time operation data information of the node management system and transmit it to the staff so that they can monitor and analyze the operation status of the system in a timely manner; The data information transmitted and processed by the node management system is backed up, and the backed up data information is further distributedly stored in the blockchain, which can provide backup data information when the transmitted data information is lost or tampered with.

[0009] According to the above technical solution, a node management system based on communication transmission includes: A design processing module, used for design processing of the node management system; Analysis and management module, used for analysis and optimization management of point management system; The acquisition and storage module is used to control the acquisition and storage of data information.

[0010] According to the above technical solution, the design processing module includes: Structural design module, used for structural design of node management system; The time-frequency synchronization module is used to perform time-frequency synchronization control processing of the node management system; The modulation management module is used to perform modulation management of the node management system.

[0011] According to the above technical solution, the analysis management module includes: A measurement and compensation module, used for performing transmission delay measurement and compensation processing; A receiving node module, used for controlling the receiving transmission of the receiving node; The signal transmission module is used to manage the signal transmission of the node management system.

[0012] According to the above technical solution, the acquisition and storage module includes: Information collection module, used for collecting data information of node management system; The distributed storage module is used for distributed storage control of data information.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention, by providing a design processing module, an analysis management module and an acquisition storage module, can directly download time-frequency signals in the signal transmission link when adding new nodes for corresponding processing according to system requirements, thereby greatly improving the practicality and flexibility of the system, and by mixing the PN code and the transmission signal, a quasi-random noise signal with a lower similarity to the original signal is obtained, thereby reducing the mutual modulation of the round-trip signals during the transmission process, and because the PN code has the characteristics of Gaussian distribution noise, it can be repeatedly generated and replicated, thereby effectively improving the network communication transmission processing efficiency and avoiding the consumption of system analysis and processing resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 is a flowchart of a node management method based on communication transmission provided in Embodiment 1 of the present invention; Figure 2 This is a module structure diagram of a node management system based on communication transmission provided in Embodiment 2 of the present invention. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] Embodiment 1: Figure 1 This is a flowchart of a node management method based on communication transmission provided in Embodiment 1 of the present invention. This embodiment can be applied to a node management system. The method can be executed by a node management system based on communication transmission provided in Embodiment 1 of the present invention. The system is composed of multiple software and hardware modules, such as Figure 1 As shown, the method specifically comprises the following steps: S101, performing structural design processing of the node management system; Exemplarily, in an embodiment of the present invention, a node management system is designed and managed with a node hierarchical distribution structure, and the frequency source is used as the only source node of the system, which is a first-level node, and as a high-precision time and frequency reference for the entire system. At the same time, all the time and frequency signals of the control system are distributed through the source node, and the relay node is directly synchronized with the source node in time and frequency. In this step, the system's high-precision time and frequency reference is distributed layer by layer by the source node, and according to the set rules, it is the relay node of the second-layer node of the entire hierarchical distribution system, and the other remaining nodes are third-layer nodes, and the time and frequency transmission between different levels is carried out as much as possible through a point-to-point time and frequency synchronization scheme to ensure the accuracy of the time and frequency signals of the receiving hierarchical relay nodes.

[0017] S102, performing time-frequency synchronization and modulation management on the node management system; Exemplarily, in an embodiment of the present invention, time-frequency synchronization processing is performed through a tree structure, so that the relay node end and the peripheral node perform point-to-point time-frequency transmission, and the peripheral nodes attached to the transmission link perform time-frequency synchronization by downloading from any node; through this step, when new nodes need to be added for corresponding processing according to system requirements, the time-frequency signal can be downloaded directly in the signal transmission link, which greatly improves the practicality and flexibility of the system.

[0018] The node management system is modulated by a pseudo-random code (PN code). After the system signal source generates a time-frequency signal, the shift register is controlled to generate a pseudo-random code based on the system signal source clock. The pseudo-random code is XOR-added with the digital modulation signal to generate an encrypted frequency standard signal modulated by the pseudo-random code, and the signal is further converted into an analog signal through a retainer. The analog signal is amplitude modulated (AM) by a carrier with a wavelength of 1550nm. After the obtained optical microwave signal frequency is directly input into the transmission link for signal transmission; in this step, the PN code has the same Gaussian distribution spectrum as the white noise signal. The PN code is regarded as a white noise signal that can be repeatedly replicated. The PN code is mixed with the transmission signal to obtain a quasi-random noise signal with a lower similarity to the original signal, thereby reducing the mutual modulation of the round-trip signals during the transmission process. In addition, since the PN code has the characteristics of Gaussian distribution noise, it can be repeatedly replicated, effectively improving the network communication transmission processing efficiency and avoiding the consumption of system analysis and processing resources.

[0019] S103, performing analysis and optimization management of the node management system; Exemplarily, in an embodiment of the present invention, a time standard transmission method is adopted to control the signal transmission to measure the pseudo delay in the transmission process, and the precise delay measurement is completed by canceling the pseudo delay data of the transmitting node end and the receiving node end, so as to determine the delay of the two and perform compensation processing, so as to achieve the purpose of precise synchronization of the system time standard; in this step, the starting point of the 1pps signal generated by the frequency source that meets the set time is selected and marked in the frequency standard signal, and the high-precision frequency exceeding the set threshold received by the system receiving node end is used as a reference. The 1pps signal is restored at the receiving node end through a time interval counter and the point marked at the input end is identified. With this point as the starting point, the restored 1pps signal is used as the corresponding time interval to construct a new time standard at the receiving node end to complete the compensation processing, so as to achieve the purpose of precise synchronization of the system time standard, effectively improve the accuracy of the frequency standard received by the receiving node end, thereby greatly improving the accuracy of the system frequency synchronization, avoiding the generation of analysis and processing errors, and effectively improving the user's satisfaction.

[0020] After the receiving node receives the optical microwave signal, it first demodulates the carrier signal through the optoelectronic conversion device, so that the demodulated signal contains a pseudo-code modulation signal of pseudo-code information, and further samples the signal with a sampling device to digitize it, and repeatedly generates the pseudo-code signal of the modulated signal at the transmitting node end at the receiving node end through a shift register, and demodulates the digitized pseudo-code modulation signal through pseudo-code demodulation processing, and outputs a frequency standard signal; in this step, a high-precision time-frequency reference is obtained by receiving the signal from the transmitting node end and identifying and recovering the signal, and the time standard signal is transmitted based on the time standard recovered by the receiving end, unifying the time standards of the transmitting node end and the receiving node end, effectively improving the stability and efficiency of the system operation.

[0021] When both the time-frequency synchronization transmitting end and the output end have high-precision time-frequency references that meet the set requirements, a two-way signal transmission method is used for link transmission processing; in this step, the purpose of time-frequency transmission is to compare the time-frequency references of the transmitting end and the output end and form a unified and unique high-precision time-frequency reference. Therefore, in this case, a two-way signal transmission method is used to eliminate the influence of phase noise introduced in the transmission link, that is, the input and output ends send time-frequency signals to each other at the same time, and the phase noise introduced in the transmission link is analyzed based on the comparison of the signals received by both parties with the local frequency standards, and then the frequency standard data between the transmitting end and the output end are compared to form a unified time-frequency reference.

[0022] S104, performing data information collection, storage and control of the node management system; Exemplarily, in an embodiment of the present invention, real-time operation data information of the node management system is collected and transmitted to the staff so that they can monitor and analyze the operation status of the system in a timely manner; The data information transmitted and processed by the node management system is backed up, and the backed up data information is further distributedly stored in the blockchain, which can provide backup data information when the transmitted data information is lost or tampered with.

[0023] Embodiment 2: Embodiment 2 of the present invention provides a node management system based on communication transmission. Figure 2 A schematic diagram of the module structure of a node management system based on communication transmission provided in the second embodiment, such as Figure 2 As shown, the system includes: A design processing module, used for design processing of the node management system; Analysis and management module, used for analysis and optimization management of point management system; The acquisition and storage module is used to control the acquisition and storage of data information.

[0024] In some embodiments of the present invention, the design processing module includes: Structural design module, used for structural design of node management system; The time-frequency synchronization module is used to perform time-frequency synchronization control processing of the node management system; The modulation management module is used to perform modulation management of the node management system.

[0025] In some embodiments of the present invention, the analysis management module includes: A measurement and compensation module, used for performing transmission delay measurement and compensation processing; A receiving node module, used for controlling the receiving transmission of the receiving node; The signal transmission module is used to manage the signal transmission of the node management system.

[0026] In some embodiments of the present invention, the acquisition storage module includes: Information collection module, used for collecting data information of node management system; The distributed storage module is used for distributed storage control of data information.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A node management method based on communication transmission, characterized in that: include: Carry out structural design of node management system; Perform time-frequency synchronization and modulation management on the node management system; Conduct analysis and optimization management of node management system; Carry out data information collection, storage and control of the node management system; The structural design process of the node management system includes: The node management system is designed and managed with a hierarchical node distribution structure. The frequency source is used as the only source node of the system, a first-level node, and a high-precision time and frequency reference for the entire system. At the same time, all time and frequency signals of the control system are distributed through the source node, and the relay node is directly synchronized with the source node in time and frequency.

2. A node management method based on communication transmission according to claim 1, characterized in that: The time-frequency synchronization and modulation management of the node management system includes: Through the tree structure, time and frequency synchronization is carried out, so that the relay node and the peripheral node can perform point-to-point time and frequency transmission, and the peripheral nodes attached to the transmission link can perform time and frequency synchronization by downloading from any node; The node management system is modulated by a pseudo-random code (PN code). After the system signal source generates a time-frequency signal, the shift register is controlled to generate a pseudo-random code based on the system signal source clock. The pseudo-random code is XOR-added with the digital modulation signal to generate an encrypted frequency standard signal modulated by the pseudo-random code. The signal is further converted into an analog signal through a retainer. The analog signal is amplitude modulated (AM) by a carrier with a wavelength of 1550nm. The obtained optical microwave signal frequency is directly input into the transmission link for signal transmission.

3. The node management method based on communication transmission according to claim 1, characterized in that: The analysis and optimization management of the node management system includes: The time standard transmission method is adopted to control the signal transmission and measure the pseudo delay in the transmission process. The precise delay measurement is completed by canceling the pseudo delay data of the transmitting node and the receiving node, so as to determine the delay of the two and compensate for it, so as to achieve the purpose of precise synchronization of the system time standard.

4. The node management method based on communication transmission according to claim 1, characterized in that: The analysis and optimization management of the node management system further includes: After the receiving node receives the optical microwave signal, it first demodulates the carrier signal through the photoelectric conversion device, so that the demodulated signal contains the pseudo code modulation signal of the pseudo code information, and further samples the signal with the sampling device to digitize it, and repeatedly generates the pseudo code signal of the modulated signal at the transmitting node end through the shift register at the receiving node end, and demodulates the digital pseudo code modulation signal through the pseudo code demodulation process, and outputs the frequency standard signal; When both the time-frequency synchronization transmitting end and the output end have high-precision time-frequency references that meet the set requirements, a two-way signal transmission method is used for link transmission processing.

5. The node management method based on communication transmission according to claim 1, characterized in that: The data information collection and storage control of the node management system includes: Collect real-time operation data information of the node management system and transmit it to the staff so that they can monitor and analyze the operation status of the system in a timely manner; The data information transmitted and processed by the node management system is backed up, and the backed up data information is further distributedly stored in the blockchain, which can provide backup data information when the transmitted data information is lost or tampered with.

6. A node management system based on communication transmission, characterized in that: include: A design processing module, used for design processing of the node management system; Analysis and management module, used for analysis and optimization management of point management system; The acquisition and storage module is used to control the acquisition and storage of data information.

7. A node management system based on communication transmission according to claim 6, characterized in that: The design processing module includes: Structural design module, used for structural design of node management system; The time-frequency synchronization module is used to perform time-frequency synchronization control processing of the node management system; The modulation management module is used to perform modulation management of the node management system.

8. A node management system based on communication transmission according to claim 6, characterized in that: The analysis management module includes: A measurement and compensation module, used for performing transmission delay measurement and compensation processing; A receiving node module, used for controlling the receiving transmission of the receiving node; The signal transmission module is used to manage the signal transmission of the node management system.

9. A node management system based on communication transmission according to claim 6, characterized in that: The acquisition storage module comprises: Information collection module, used for collecting data information of node management system; The distributed storage module is used for distributed storage control of data information.

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