CN115118335A - Main-standby switching method of time-frequency reference equipment and time-frequency reference equipment applying same - Google Patents
Main-standby switching method of time-frequency reference equipment and time-frequency reference equipment applying same Download PDFInfo
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- CN115118335A CN115118335A CN202211036583.4A CN202211036583A CN115118335A CN 115118335 A CN115118335 A CN 115118335A CN 202211036583 A CN202211036583 A CN 202211036583A CN 115118335 A CN115118335 A CN 115118335A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/118—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum specially adapted for satellite communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
- H04B10/275—Ring-type networks
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Abstract
The invention relates to the technical field of time frequency of ships, in particular to a master-slave switching method of a time frequency reference device and the time frequency reference device using the same.
Description
Technical Field
The invention relates to the technical field of time frequency of ships, in particular to a main-standby switching method of time frequency reference equipment and the time frequency reference equipment applying the same.
Background
The ship time-frequency reference equipment is important constituent equipment of a navigation system, mainly completes receiving time service information of satellites, long waves and short waves, realizes high-precision synchronization, and provides autonomous, continuous and uniform time-frequency reference information for a whole ship through time keeping and frequency generation of an atomic clock. In order to improve the stability and reliability of the time-frequency reference equipment in a long-time task scene, the double hosts can be configured for hot backup, so that a stable and robust main-standby machine switching method is needed for supporting.
Disclosure of Invention
The invention aims to improve the stability and reliability of time-frequency reference equipment in a long-time task scene, and provides a stable and robust main-standby switching method of the time-frequency reference equipment and the time-frequency reference equipment applying the method.
The invention is realized by the following technical scheme:
the invention provides a method for switching a main device and a standby device of time frequency reference equipment, which comprises the following steps:
s1, judging whether the main-standby switching request of the time frequency reference equipment is manual, if so, executing S2, and if not, executing S4 and setting the main-standby switching to automatic switching;
s2, judging whether the time frequency reference equipment local machine operates in the main host mode, if so, executing S3;
s3, judging whether the time frequency reference equipment standby host in the ring network has at least 1 atomic clock in locking state, if yes, executing the main/standby switching operation,
s4, judging whether the time frequency reference equipment local machine operates in the main host mode, if so, executing S5;
s5, judging whether 2 atomic clocks of the machine are all in fault or not, if so, executing S6;
s6, judging whether the time frequency reference equipment standby host in the ring network has at least 1 atomic clock in the locking state, if yes, executing the main/standby switching operation.
Step S2, judging whether the time frequency reference device local machine is operated in the main host mode, if not, executing S7;
and S7, judging whether the local computer has at least 1 atomic clock in the locking state, if so, executing the main-standby switching operation.
In step S5, judging whether 2 atomic clocks of the machine are all in fault or not, if not, executing S8;
s8, judging whether the self-machine is in the automatic Beidou synchronization mode and whether the satellite navigation signal source is lost, if so, executing downwards;
s9, judging whether the time frequency reference equipment standby host in the ring network has at least 1 atomic clock in the locking state and has a guard signal source, if yes, executing the main-standby switching operation.
Step S8, judging whether the self-machine is in the automatic Beidou synchronization mode and whether the satellite navigation signal source is lost, if not, executing S10;
s10, judging whether the local computer executes soft shutdown, if yes, executing downwards;
and S11, after the soft shutdown of the main host, the standby host is automatically switched to the main host.
The invention also provides a time frequency reference device, which applies the main-standby switching method of the time frequency reference device, wherein the time frequency reference device is equipped with double hosts, the main-standby switching of the double hosts is divided into a manual switching mode and an automatic switching mode, the manual switching mode is triggered by user operation, the automatic switching mode is automatically triggered, the main-standby switching information of the time frequency reference device is transmitted through an optical fiber ring network, and the upper computer application software receives, analyzes and processes the information.
The upper computer application software of the time frequency reference equipment is software configured in a time frequency reference equipment display control mainboard module and is divided into a main host mode and a standby host mode, and the software is used for monitoring the working states of internal modules and equipment, receiving, analyzing and processing main and standby switching information in the optical fiber ring network.
The invention has the beneficial effects that:
according to the method for switching the main and the standby of the time frequency reference equipment, the time frequency reference equipment double-host is arranged, and the stability and the reliability of the time frequency reference equipment double-host hot backup in a long-time task scene are greatly improved by using a manual main and standby switching mode and an automatic main and standby switching mode under a specific condition, so that the method has a high practical application value.
Drawings
Fig. 1 is a schematic diagram of a time-frequency reference device system provided by the present invention.
Fig. 2 is a schematic diagram of a processing flow of the main/standby switching method of the time-frequency reference device provided in the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
In order to improve the stability and reliability of time-frequency reference equipment in a long-time task scene, the embodiment of the invention adopts the following technical scheme:
Referring to fig. 1 and 2, the time-frequency reference device in the embodiment of the present invention is equipped with dual hosts, the active-standby switching information is transmitted through a bidirectional optical fiber ring network, the upper computer application software configured on the host display control motherboard module receives, analyzes and correspondingly processes the information, and the stability and reliability of the time-frequency reference device in a long-time task scene are improved by using a manual active-standby switching mode and an automatic active-standby switching mode under a specific condition.
The main-standby switching of the double-host hot backup of the time-frequency reference equipment is divided into a manual mode and an automatic mode, wherein the manual mode is triggered by user operation, and the automatic mode is automatically triggered under a specific condition. The time-frequency reference equipment main-standby switching information is transmitted through the optical fiber ring network, and the upper computer application software receives, analyzes and correspondingly processes the information.
The specific conditions for automatic active/standby switching include: when the main host monitors that 2 atomic clocks are all in fault or are not installed, and at least 1 atomic clock of the standby host is locked, automatic main-standby switching is carried out; when the main host runs in an automatic Beidou synchronous working mode, the defense signal source is lost for a period of time, and meanwhile, the standby host is locked by at least 1 atomic clock and has the defense signal source, and automatic main-standby switching is carried out; when the main host software is shut down or the ring network is not on line, the standby host is automatically switched to the main host.
Referring to the flowchart of fig. 2, a method for switching between active and standby devices using the time-frequency reference device includes the following specific steps:
step 1, judging whether a main/standby switching request of time frequency reference equipment is manual or not, and if so, executing step 2; if not, executing step 5;
the main-standby switching of the time-frequency reference equipment is divided into a manual mode and an automatic mode, wherein the manual mode is triggered by user operation, and the automatic mode is automatically triggered under a specific condition.
Step 2, judging whether the time frequency reference equipment local machine operates in a main host mode, if so, executing step 3; if not, executing the step 4;
the operation modes of the time-frequency reference equipment are divided into a main host mode and a standby host mode.
Step 3, judging whether the time frequency reference equipment standby host in the ring network has at least 1 atomic clock in a locking state, if so, executing step 12 after executing the main/standby switching operation, and if not, executing step 12;
the embodiment of the present invention does not limit the monitoring interface and the method for the internal function module of the device.
Step 4, judging whether the local computer has at least 1 atomic clock in the locking state, if yes, executing step 12 after executing the main/standby switching operation, and if not, executing step 12;
Step 5, judging whether the time frequency reference equipment local machine operates in a main host mode, if so, executing step 6; if not, executing step 12;
step 6, judging whether the automatic switching condition is that 2 atomic clocks of the machine are all in fault or not installed, if so, executing step 7; if not, executing step 8;
for a device without the redundancy function of the dual atomic clocks, it may be determined whether 1 atomic clock fails or is not installed, which is not limited in the embodiment of the present invention.
Step 7, judging whether the time frequency reference equipment standby host in the ring network has at least 1 atomic clock in a locking state, if so, executing step 12 after executing the main/standby switching operation, and if not, executing step 12;
step 8, judging whether the automatic switching condition is that the self-machine is in an automatic Beidou synchronous mode and the satellite signal source is lost for a period of time, if so, executing step 9; if not, executing step 10;
the number of cycles for determining that the guard signal source is lost may be set according to the device condition, which is not limited in the embodiments of the present invention.
Step 9, judging whether the standby host of the time-frequency reference equipment in the ring network has at least 1 atomic clock in a locking state and a guard signal source, if so, executing step 12 after executing the main-standby switching operation, and if not, executing step 12;
Step 10, judging whether the automatic switching condition is that the local computer executes soft shutdown, if so, executing step 11; if not, executing step 12;
and 11, after the main host is in soft shutdown, automatically switching the standby host to the main host.
In this case, the standby host is unconditionally switched to the primary host.
And step 12, ending the process.
In summary, the embodiments of the present invention provide a method for switching between master and slave of a time-frequency reference device in a dual-master hot backup mode, where the time-frequency reference device is configured as a dual-master, and the master and slave switching information is transmitted through an optical fiber ring network by using a manual master and slave switching mode and an automatic master and slave switching mode under a specific condition, and the upper computer application software receives, analyzes and performs corresponding processing on the information, so as to greatly improve the stability and reliability of the time-frequency reference device in a long-time task scene, and have a high practical application value.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A method for switching between main equipment and standby equipment of time-frequency reference equipment is characterized by comprising the following steps:
s1, judging whether the main-standby switching request of the time frequency reference equipment is manual, if so, executing S2, and if not, executing S4 and setting the main-standby switching to automatic switching;
s2, judging whether the time frequency reference equipment local machine operates in the main host mode, if so, executing S3;
s3, judging whether the time frequency reference equipment standby host in the ring network has at least 1 atomic clock in locking state, if yes, executing the main/standby switching operation,
s4, judging whether the time frequency reference equipment local machine operates in the main host mode, if so, executing S5;
s5, judging whether 2 atomic clocks of the machine are all in fault or not, if so, executing S6;
s6, judging whether the time frequency reference equipment standby host in the ring network has at least 1 atomic clock in the locking state, if yes, executing the main/standby switching operation.
2. The method for switching between master and slave time frequency reference devices according to claim 1, wherein in step S2, it is determined whether the local time frequency reference device is operating in master host mode, if not, S7 is executed;
s7, judging whether the local computer has at least 1 atomic clock in locking state, if yes, executing the main-standby switching operation.
3. The method for switching between master and slave time-frequency reference devices according to claim 1, wherein in step S5, it is determined whether 2 atomic clocks of the local device have failed or are not installed, and if not, S8 is executed;
s8, judging whether the self-machine is in the automatic Beidou synchronization mode and whether the satellite navigation signal source is lost, if so, executing downwards;
s9, judging whether the time frequency reference equipment standby host in the ring network has at least 1 atomic clock in locking state and guard pilot signal source, if yes, executing the main/standby switching operation.
4. The method for switching between master and slave time frequency reference devices as claimed in claim 3, wherein step S8 determines whether the local machine is in the automatic beidou synchronization mode and the satellite signal source is lost, if not, S10 is executed;
s10, judging whether the local machine executes soft shutdown, if yes, executing downwards;
and S11, after the soft shutdown of the main host, the standby host is automatically switched to the main host.
5. A time frequency reference device, the main-standby switching method of the time frequency reference device according to any claim 1 to 4 is applied, characterized in that the time frequency reference device is configured as a dual host, the main-standby switching of the dual host is divided into a manual switching mode and an automatic switching mode, the manual switching mode is triggered by user operation, the automatic switching mode is triggered automatically, the main-standby switching information of the time frequency reference device is transmitted through an optical fiber ring network, and the upper computer application software receives, analyzes and processes the information.
6. The time-frequency reference device according to claim 5, wherein the upper computer application software of the time-frequency reference device is software configured in a display control motherboard module of the time-frequency reference device, and is divided into a primary host mode and a standby host mode, and the software is configured to monitor operating states of internal modules and devices, receive, analyze and process primary-standby switching information in the optical fiber ring network.
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| CN202211036583.4A CN115118335B (en) | 2022-08-29 | 2022-08-29 | Main-standby switching method of time-frequency reference equipment and time-frequency reference equipment applying same |
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