Networked integrated time system

Abstract

The application relates to time comparison technology and clock taming technology in the field of time service, and designs a networked comprehensive time system device which mainly comprises a Beidou antenna (101), a long-wave antenna (102), two rubidium clock units (103)-(104), a network time service unit (105), a bidirectional time service unit (106), a common view time service unit (107), a long-wave time service unit (108), two power supply units (109)-(110), a time code generation unit (111), a time code distribution unit (112), a monitoring unit (113) and software (114); the local clock can be traced by using multiple means, meanwhile, the comprehensive time service capability of each time system in the network can be obtained, and the centralized unified management and reasonable resource allocation are facilitated.

Description

Technical Field

[0001] This invention relates to time comparison technology and clock discipline technology in the field of time synchronization services. It designs a networked integrated time synchronization device that can trace the local clock using multiple methods and obtain the integrated time synchronization service capabilities of various time synchronization systems within the network, facilitating centralized and unified management and rational allocation of resources. Background Technology

[0002] Time synchronization systems can maintain a high-precision time reference locally, and are a commonly used, easily deployed, and low-cost method for time synchronization. They are often used to maintain local reference time and frequency signals for users. Currently, time synchronization systems typically use received space navigation signals to discipline the built-in atomic clock, outputting various time code signals to provide time synchronization services to users. With the further enrichment of application scenarios and the further improvement of technology, the demand for highly reliable and unified management applications is becoming increasingly strong. However, traditional methods have the following drawbacks:

[0003] 1. Relies on navigation signals, resulting in limited source tracing methods;

[0004] 2. It is easily affected by interference and has poor fault tolerance;

[0005] 3. It operates at a single point, making it impossible to manage devices in multiple locations in a unified manner, and it is also impossible to evaluate its own performance and effectiveness. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology and propose a networked integrated time and time system device, which can effectively improve reliability and management efficiency.

[0007] The technical solution adopted in this invention is as follows:

[0008] A networked integrated time synchronization device includes: multiple networked integrated time synchronization units, each of which includes a receiving BeiDou antenna 101, a longwave antenna 102, two rubidium clock units 103-104, a network time synchronization unit 105, a two-way time synchronization unit 106, a common-view time synchronization unit 107, a longwave time synchronization unit 108, two power supply units 109-110, a time code generation unit 111, a time code allocation unit 112, a monitoring unit 113, and software 114;

[0009] The Beidou antenna 101 is used to receive navigation signals, amplify them with low noise, and then output them to the common-view timing unit 107.

[0010] The long-wave antenna 102 is used to receive long-wave signals, amplify them with low noise, and then output them to the long-wave timing unit 108.

[0011] Two rubidium clock units 103-104 are used to generate the frequency reference of the device, are online simultaneously, and output frequency signals to the time code generation unit 111;

[0012] The network timing unit 105 operates in master mode or slave mode. In master mode, it provides network timing signals to the network timing unit of the remote network integrated time system. In slave mode, it receives network timing signals to synchronize with the network timing unit of the remote network integrated time system and generates synchronization clock difference data to send to the time code generation unit 111.

[0013] The two-way timing unit 106 is used to generate a local ranging code based on the frequency and second pulse signal generated by the time code generation unit 111, and to perform two-way comparison with the two-way timing unit of the remote networked integrated time system through a two-way link. It receives the two-way timing signal, generates two-way comparison clock difference data, and sends it to the time code generation unit 111.

[0014] The common-view timing unit 107 is used to receive the BeiDou timing signal output by the BeiDou antenna 101, generate a local ranging code based on the frequency and second pulse signal generated by the time code generation unit 111, demodulate the navigation signal based on the local ranging code, calculate the star-ground clock difference data, and send the star-ground clock difference data and timing second pulse signal to the time code generation unit 111.

[0015] The long-wave timing unit 108 is used to receive the long-wave signal output by the long-wave antenna 102, demodulate and output the timing second pulse to the time code generation unit 111;

[0016] Two power supply units 109-110 are used to supply power to the various units inside the networked integrated time synchronization device, and are online simultaneously;

[0017] The time code generation unit 111 is used to receive the frequency signals of the rubidium clock units 103-104, generate frequency and second pulse signals, and distribute them to the two-way time synchronization unit 106 and the common-view time synchronization unit 107. At the same time, it receives the time synchronization signals from the network time synchronization unit 105, the two-way time synchronization unit 106, the common-view time synchronization unit 107, the long-wave time synchronization unit 108 and the external time frequency, disciplines the rubidium clock units 103-104, and generates various time code service signals based on the disciplined rubidium clock unit signals, and outputs them to the time code distribution unit 112.

[0018] The time code allocation unit 112 is used to receive various time code service signals output by the time code generation unit 111, split them into multiple outputs, and provide time synchronization services to the outside world;

[0019] Monitoring unit 113 is used for sending and receiving business data between various functional units and software 114 within the networked integrated time system;

[0020] Software 114 is used to receive service data reported by monitoring unit 113, calculate and obtain local time synchronization uncertainty and frequency accuracy, and connect to multiple networked integrated time systems within the network. Based on the service data of multiple networked integrated time systems within the network, it performs data analysis to obtain the time synchronization service performance and health status among multiple networked integrated time systems within the network.

[0021] Furthermore, the two rubidium clock units 103-104, the network time synchronization unit 105, the bidirectional time synchronization unit 106, the common-view time synchronization unit 107, the long-wave time synchronization unit 108, the two power supply units 109-110, the time code generation unit 111, and the time code distribution unit 112 are interconnected via a VPX bus and can be combined and used as needed.

[0022] Among them, frequency signals between functional boards of each unit are transmitted using coaxial cables, pulse signals are transmitted using single-ended transmission, and other signals are transmitted using differential pairs; the power supply, data transmission and reception, and pulse frequency signals of each functional board of each unit share the same signal pin definition, and the mounting slots of each unit are interchangeable.

[0023] Furthermore, the network timing unit 105, the two-way timing unit 106, the common-view timing unit 107, the long-wave timing unit 108, and the time code generation unit 111 simultaneously receive network, two-way, BeiDou, long-wave, and external time and frequency timing signals. The integrated time system combines real-time timing information and historical timing information, and through big data analysis, selects the resource with the best overall time and frequency accuracy, effectiveness, and stability as the time and frequency service reference. When the networked integrated time system switches between various reference sources, the output timing signal has a stable phase without any jumps.

[0024] Furthermore, the software 114 obtains the time synchronization service performance between the local integrated time system and the integrated time system within the network in real time, and performs health status monitoring based on temperature, voltage, and current information.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] (1) The networked integrated time system implementation method and apparatus proposed in this invention can simultaneously integrate multiple reference source data, perform optimal reference source selection, and improve the reliability of time and frequency reference.

[0027] (2) The networked integrated time system implementation method and device proposed in this invention solves the problems of traditional time systems working at a single point and being unable to obtain reliable time signals. It has a high degree of integration, greatly improves the robustness of time signaling, has strong engineering feasibility, and is practical. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of a networked integrated timing device according to the present invention. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 The embodiments of the present invention will be described in detail below.

[0030] Figure 1 It is a networked integrated time synchronization device, including: multiple networked integrated time synchronization units, each of which includes a receiving Beidou antenna 101, a long-wave antenna 102, two rubidium clock units 103-104, a network time synchronization unit 105, a two-way time synchronization unit 106, a common-view time synchronization unit 107, a long-wave time synchronization unit 108, two power supply units 109-110, a time code generation unit 111, a time code allocation unit 112, a monitoring unit 113, and software 114;

[0031] The Beidou antenna 101 is used to receive navigation signals, amplify them with low noise, and then output them to the common-view timing unit 107.

[0032] The long-wave antenna 102 is used to receive long-wave signals, amplify them with low noise, and then output them to the long-wave timing unit 108.

[0033] Two rubidium clock units 103-104 are used to generate the frequency reference of the device, are online simultaneously, and output frequency signals to the time code generation unit 111;

[0034] The network timing unit 105 operates in master mode or slave mode. In master mode, it provides network timing signals to the network timing unit of the remote network integrated time system. In slave mode, it receives network timing signals to synchronize with the network timing unit of the remote network integrated time system and generates synchronization clock difference data to send to the time code generation unit 111.

[0035] The two-way timing unit 106 is used to generate a local ranging code based on the frequency and second pulse signal generated by the time code generation unit 111, and to perform two-way comparison with the two-way timing unit of the remote networked integrated time system through a two-way link. It receives the two-way timing signal, generates two-way comparison clock difference data, and sends it to the time code generation unit 111.

[0036] The common-view timing unit 107 is used to receive the BeiDou timing signal output by the BeiDou antenna 101, generate a local ranging code based on the frequency and second pulse signal generated by the time code generation unit 111, demodulate the navigation signal based on the local ranging code, calculate the star-ground clock difference data, and send the star-ground clock difference data and timing second pulse signal to the time code generation unit 111.

[0037] The long-wave timing unit 108 is used to receive the long-wave signal output by the long-wave antenna 102, demodulate and output the timing second pulse to the time code generation unit 111;

[0038] Two power supply units 109-110 are used to supply power to the various units inside the networked integrated time synchronization device, and are online simultaneously;

[0039] The time code generation unit 111 is used to receive the frequency signals of the rubidium clock units 103-104, generate frequency and second pulse signals, and distribute them to the two-way time synchronization unit 106 and the common-view time synchronization unit 107. At the same time, it receives the time synchronization signals from the network time synchronization unit 105, the two-way time synchronization unit 106, the common-view time synchronization unit 107, the long-wave time synchronization unit 108 and the external time frequency, disciplines the rubidium clock units 103-104, and generates various time code service signals based on the disciplined rubidium clock unit signals, and outputs them to the time code distribution unit 112.

[0040] The time code allocation unit 112 is used to receive various time code service signals output by the time code generation unit 111, split them into multiple outputs, and provide time synchronization services to the outside world;

[0041] Monitoring unit 113 is used for sending and receiving business data between various functional units and software 114 within the networked integrated time system;

[0042] Software 114 receives service data reported by monitoring unit 113, calculates local time synchronization uncertainty and frequency accuracy, and connects to multiple networked integrated time systems within the network. Based on the service data from these multiple integrated time systems, it performs data analysis to obtain the time synchronization service performance and health status among them. Software 114 obtains real-time time synchronization service performance between the local integrated time system and the integrated time systems within the network, and monitors health status based on temperature, voltage, and current information.

[0043] Among them, the two rubidium clock units 103-104, the network time synchronization unit 105, the bidirectional time synchronization unit 106, the common-view time synchronization unit 107, the long-wave time synchronization unit 108, the two power supply units 109-110, the time code generation unit 111, and the time code distribution unit 112 are interconnected through the VPX bus and can be combined and used as needed;

[0044] Frequency signals between unit function boards are transmitted using coaxial cables, pulse signals are transmitted using single-ended transmission, and other signals are transmitted using differential pairs; the power supply, data transmission and reception, and pulse frequency signals of each unit function board share the same signal pin definition, and the mounting slots of each unit are interchangeable.

[0045] Among them, the network timing unit 105, the two-way timing unit 106, the common-view timing unit 107, the long-wave timing unit 108, and the time code generation unit 111 simultaneously receive network, two-way, BeiDou, long-wave, and external time and frequency timing signals. The integrated time system combines real-time timing information and historical timing information, and through big data analysis, selects the resource with the best comprehensive time and frequency accuracy, effectiveness, and stability as the time and frequency service reference. When the networked integrated time system switches between various reference sources, the output timing signal has a stable phase without any jumps.

Claims

1. A networked integrated time synchronization device, characterized in that, include: Multiple networked integrated time systems, each of which includes a receiving BeiDou antenna (101), a longwave antenna (102), two rubidium clock units (103, 104), a network time synchronization unit (105), a two-way time synchronization unit (106), a common-view time synchronization unit (107), a longwave time synchronization unit (108), two power supply units (109, 110), a time code generation unit (111), a time code allocation unit (112), a monitoring unit (113), and software (114). The Beidou antenna (101) is used to receive navigation signals, which are then amplified with low noise and output to the common-view timing unit (107). The long-wave antenna (102) is used to receive long-wave signals, amplify them with low noise, and output them to the long-wave timing unit (108). Two rubidium clock units (103, 104) are used to generate the frequency reference of the device, and are online at the same time, and output frequency signals to the time code generation unit (111). The network timing unit (105) operates in master mode or slave mode. In master mode, it provides network timing signals to the network timing unit of the remote network integrated time system. In slave mode, it receives network timing signals to synchronize with the network timing unit of the remote network integrated time system and generates synchronization clock difference data to send to the time code generation unit (111). The two-way timing unit (106) is used to generate a local ranging code based on the frequency and second pulse signal generated by the time code generation unit (111), and to perform two-way comparison with the two-way timing unit of the remote networked integrated time system through a two-way link. It receives the two-way timing signal, generates two-way comparison clock difference data, and sends it to the time code generation unit (111). The common-view timing unit (107) is used to receive the Beidou timing signal output by the Beidou antenna (101), generate a local ranging code based on the frequency and second pulse signal generated by the time code generation unit (111), demodulate the navigation signal based on the local ranging code, calculate the star-ground clock difference data, and send the star-ground clock difference data and timing second pulse signal to the time code generation unit (111). The long-wave timing unit (108) is used to receive the long-wave signal output by the long-wave antenna (102), demodulate and output the timing second pulse to the time code generation unit (111). Two power supply units (109, 110) are used to supply power to the various units inside the networked integrated time synchronization device, and are online simultaneously; The time code generation unit (111) is used to receive the frequency signal of the rubidium clock unit (103, 104), generate frequency and second pulse signals, and distribute them to the two-way time service unit (106) and the common-view time service unit (107). At the same time, it receives the time service signals from the network time service unit (105), the two-way time service unit (106), the common-view time service unit (107), the long-wave time service unit (108), and the external time frequency. It disciplines the rubidium clock unit (103, 104) and generates various time code service signals based on the disciplined rubidium clock unit signals, and outputs them to the time code distribution unit (112). The time code allocation unit (112) is used to receive various time code service signals output by the time code generation unit (111), output them in separate channels, and provide time synchronization services to the outside world; The monitoring unit (113) is used for the transmission and reception of business data between various functional units and software (114) within the networked integrated time system; The software (114) is used to receive the service data reported by the monitoring unit (113), calculate and obtain the local time synchronization uncertainty and frequency accuracy, and connect to multiple networked integrated time systems in the network. Based on the service data of multiple networked integrated time systems in the network, it performs data analysis to obtain the time synchronization service performance and health status of multiple networked integrated time systems in the network. Among them, the network timing unit (105), the two-way timing unit (106), the common-view timing unit (107), the long-wave timing unit (108), and the time code generation unit (111) simultaneously receive network, two-way, Beidou, long-wave, and external time and frequency timing signals. The integrated time system combines real-time timing information and historical timing information, and through big data analysis, selects the resource with the best comprehensive time and frequency accuracy, effectiveness, and stability as the time and frequency service reference. When the networked integrated time system switches between various reference sources, the output timing signal has a stable phase without any jumps.

2. The networked integrated time synchronization device according to claim 1, characterized in that, The two rubidium clock units (103, 104), the network time synchronization unit (105), the two-way time synchronization unit (106), the common-view time synchronization unit (107), the long-wave time synchronization unit (108), the two power supply units (109, 110), the time code generation unit (111) and the time code distribution unit (112) are interconnected via a VPX bus and can be combined and used as needed; Among them, frequency signals between functional boards of each unit are transmitted using coaxial cables, pulse signals are transmitted using single-ended transmission, and other signals are transmitted using differential pairs; the power supply, data transmission and reception, and pulse frequency signals of each functional board of each unit share the same signal pin definition, and the mounting slots of each unit are interchangeable.

3. The networked integrated time synchronization device according to claim 1, characterized in that, The software (114) obtains the time synchronization service performance between the local integrated time system and the integrated time system within the network in real time, and performs health status monitoring based on temperature, voltage and current information.

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