CN115469530B - Backup tuning system, method, computer-readable storage medium and computer equipment - Google Patents
Backup tuning system, method, computer-readable storage medium and computer equipmentInfo
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- CN115469530B CN115469530B CN202211160839.2A CN202211160839A CN115469530B CN 115469530 B CN115469530 B CN 115469530B CN 202211160839 A CN202211160839 A CN 202211160839A CN 115469530 B CN115469530 B CN 115469530B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B9/00—Safety arrangements
- G05B9/02—Safety arrangements electric
- G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
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Abstract
本申请公开一种备份调谐系统、方法、计算机可读存储介质及计算机设备，备份调谐系统包括：第一主调谐子单元和第二主调谐子单元；备份调谐单元，备份调谐单元包括第一调谐控制板和第二调谐控制板，第一调谐控制板和第二调谐控制板的手动备份调谐优先级高于第一主调谐子单元和第二主调谐子单元的主调谐；第一调谐控制板用于读取第一主调谐子单元的主调谐数据以判断第一主调谐子单元是否故障；第二调谐控制板用于读取第二主调谐子单元的主调谐数据以判断第二主调谐子单元是否故障；执行单元，执行单元包括无线电导航设备；第一调谐控制板或第二调谐控制板用于对无线电导航设备备份调谐；第一调谐控制板与第二调谐控制板同步备份调谐。
This application discloses a backup tuning system, method, computer-readable storage medium, and computer device. The backup tuning system includes: a first main tuning subunit and a second main tuning subunit; a backup tuning unit, which includes a first tuning control board and a second tuning control board, wherein the manual backup tuning priority of the first tuning control board and the second tuning control board is higher than the main tuning of the first main tuning subunit and the second main tuning subunit; the first tuning control board is used to read the main tuning data of the first main tuning subunit to determine whether the first main tuning subunit is faulty; the second tuning control board is used to read the main tuning data of the second main tuning subunit to determine whether the second main tuning subunit is faulty; and an execution unit, which includes a radio navigation device; the first tuning control board or the second tuning control board is used for backup tuning of the radio navigation device; the first tuning control board and the second tuning control board perform synchronous backup tuning.
Description
Technical Field
The invention relates to the technical field of aircrafts, and more particularly to a backup tuning system, method, computer readable storage medium and computer device.
Background
In the field of aviation, a radio navigation system refers to a system for guiding an aircraft to safely reach a destination along a specified route by using a radio navigation station and an on-board radio navigation device, and mainly includes an Automatic Direction Finder (ADF), a range finder (DME), a very high frequency omni-directional beacon (VOR), an Instrument Landing System (ILS)/a satellite landing system (GLS)/a satellite-based landing system (SLS), and others. These radio navigation devices described above all require tuning of the operating frequency to the same frequency as the ground navigation station to function properly. Based on operational safety considerations, airworthiness terms would require that the civil aircraft install two independent radio navigation systems for mutual redundancy.
Currently, the main tuning function of a radio navigation system is generally implemented through a femto system (FMS), and the femto system main tuning can be divided into VOR and ADF tuning, and tune the ILS/GLS/SLS on the left side or the right side at the same time, and fig. 1 is an example of a main tuning method or system of a radio navigation system FMS of a conventional aircraft.
In general, the failure of the FMS primary tuning has two forms. The fault form 1 is a fault before entering the central network, as shown in fig. 3, namely referred to as a fault of an FMS expression form 1, including, for example, failure of functions of an FMS body, failure of links between an FMS and the central network, etc., and the fault form 2 is a fault after entering the central network and before tuning is completed, as shown in fig. 3, namely referred to as a fault of an FMS expression form 2, including, for example, failure of a tuned data route, failure of links between the central network and radio navigation equipment, etc. Both failure modes will cause failure of the FMS primary tuning function and thus fail to provide effective flight guidance for the aircraft crew. At present, a backup tuning mode is generally adopted to solve the problem of failure of the main tuning function of the FMS.
However, existing systems for radio navigation backup tuning suffer from various drawbacks and disadvantages. For example, fig. 2 is an example of a system for radio navigation system backup tuning of a conventional aircraft. In this model backup tuning design, the backup tuning function performs backup tuning only for the left-side radio navigation device, which includes ADF, DME, VOR and ILS/GLS/SLS, through the left-side tuning control board (TCP), while the right-side radio navigation device does not design the backup tuning function.
Moreover, even more serious is that in the event that the FMS main tuning function fails, if the crew operates the left tuning control board to back up the left radio navigation device, the operating frequency of the left radio navigation device changes, but the operating frequency of the right radio navigation device remains at the tuning frequency of the FMS main tuning. Thus, such a backup tuning approach or system as described above may result in inconsistent operating frequencies of the left ILS and the right ILS, and the inconsistent results will ultimately give different approach landing cues on the left and right primary displays (PFDs) viewed by the co-pilot, which will greatly misdirect the operation of the aircraft crew. Moreover, especially in important flight phases close to landing, such misleading would be a catastrophic risk, possibly leading to a robot destruction. In addition, the FMS main tuning function of the prior art cannot guarantee the highest priority of manual manipulation.
In view of the foregoing, there is a need for developing a new backup tuning system, method, computer-readable storage medium and computer device that solve the above-mentioned problems.
Disclosure of Invention
The embodiment of the application provides a backup tuning system, a backup tuning method, a computer readable storage medium and computer equipment, which are used for solving the technical problems that the backup tuning mode in the prior art causes inconsistent working frequencies at different sides and cannot ensure the highest priority of manual control.
In order to solve the technical problems, the embodiment of the application discloses the following technical scheme:
In one aspect, a backup tuning system is provided, comprising:
The main tuning unit comprises a first main tuning subunit and a second main tuning subunit;
The backup tuning unit comprises a first tuning control board and a second tuning control board, wherein the first tuning control board and the second tuning control board are provided with manual backup tuning modes, the manual backup tuning modes of the first tuning control board and the second tuning control board are higher in priority than the main tuning of the first main tuning subunit and the second main tuning subunit, the first tuning control board is used for reading the main tuning state data of the first main tuning subunit to judge whether the first main tuning subunit is faulty or not, and the second tuning control board is used for reading the main tuning state data of the second main tuning subunit to judge whether the second main tuning subunit is faulty or not;
the system comprises an execution unit, a first tuning control board and a second tuning control board, wherein the execution unit comprises a radio navigation device, the first tuning control board or the second tuning control board is used for carrying out backup tuning on the radio navigation device, any one of the first tuning control board or the second tuning control board is used for carrying out backup tuning on the radio navigation device, and the first tuning control board is used for carrying out synchronous backup tuning on the first tuning control board and the second tuning control board.
In addition to or in lieu of one or more of the features disclosed above, a transmission unit is included that is connected between the first and second tuning control boards to synchronize backup tuning of the first and second tuning control boards.
In addition to or in lieu of one or more of the features disclosed above, the backup tuning unit includes a backup tuning port that is in an active state.
In addition to or in lieu of one or more of the features disclosed above, the backup tuning unit includes a multi-function keypad area for inputting and displaying the target backup tuning frequency.
In addition to or in lieu of one or more of the features disclosed above, the transmission unit includes a first transmission medium and a second transmission medium, the first transmission medium being connected between the first tuning control board and the second tuning control board for data output;
The second transmission medium is used for the first tuning control board to monitor the main tuning state of the first main tuning subunit, and the second transmission medium is used for the second tuning control board to monitor the main tuning state of the second main tuning subunit.
In another aspect, a backup tuning method is further disclosed, the method comprising the steps of:
(1) The first tuning control board monitors the main tuning state of the first main tuning subunit, and the second tuning control board monitors the main tuning state of the second main tuning subunit;
(2) Judging whether the main tuning state of the first main tuning subunit and the main tuning state of the second main tuning subunit are in failure or not, if so, entering a next step (3), if not, judging whether the first tuning control board or the second tuning control board enters a manual backup tuning mode, if so, carrying out manual backup tuning by the first tuning control board or the second tuning control board, and entering a next step (3), if not, carrying out main tuning by the first main tuning subunit and the second main tuning subunit;
(3) Any one of the first tuning control board and the second tuning control board performs backup tuning on the radio navigation device, and the first tuning control board and the second tuning control board perform synchronous backup tuning.
In addition to, or in lieu of, one or more of the features and/or steps disclosed above, the backup tuning ports of the first tuning control board and the second tuning control board are both set to active states.
In addition to or in lieu of one or more of the features and/or steps disclosed above, the target backup tuning frequency of the first tuning control board is manually entered and synchronized to the second tuning control board, or the target backup tuning frequency of the second tuning control board is manually entered and synchronized to the first tuning control board, prior to backup tuning of the radio navigation device.
In another aspect, a computer device is further disclosed, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method when executing the computer program.
In another aspect, a computer readable storage medium is further disclosed, on which a computer program is stored, which computer program, when being executed by a processor, implements the steps of the method.
The technical scheme has the advantages that when the main tuning function of the main tuning unit fails, the backup tuning function can accurately and efficiently control the radio navigation system, so that an aircraft can be guided in time, the traditional tuning mode that the working frequency of the radio equipment on one side is inconsistent with the working frequency of the radio equipment on the other side due to backup tuning can be avoided, unified approach landing prompt of the working frequency of the same radio navigation equipment can be given on the left main display and the right main display observed by a front driver and a back driver, particularly in an important flight stage of approach landing, the safety margin of the aircraft is greatly improved, and the probability of accidents is reduced. And the manual backup tuning modes of the first tuning control board and the second tuning control board have higher priority than the main tuning of the first main tuning subunit and the second main tuning subunit, so that the highest priority level of manual control can be ensured.
Drawings
The technical solution and other advantageous effects of the present application will be made apparent by the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings.
FIG. 1 is a schematic illustration of a prior art main tuning of a conventional aircraft's boom system;
FIG. 2 is a system diagram of a conventional aircraft with a radio navigation system back-up tuning;
FIG. 3 is a schematic diagram of a system for backup tuning in radio navigation according to an embodiment of the present application;
FIG. 4 is a schematic flow chart for backup tuning in radio navigation according to an embodiment of the present application;
100. a main tuning unit; 110, a first main tuning subunit;
120. 200, a backup tuning unit;
210. 220, the second tuning control panel;
300. 310, radio navigation device;
400. transmission unit, 410, central network.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 3, fig. 3 is a schematic diagram of a system for backup tuning in radio navigation in which embodiments of the present application may be implemented. The system for backup tuning in radio navigation provided by the application comprises a main tuning unit 100, a backup tuning unit 200, an execution unit 300 and a transmission unit 400.
The main tuning unit 100 specifically includes a first main tuning subunit 110 and a second main tuning subunit 120, where the first main tuning subunit 110 and the second main tuning subunit 120 are used for performing main tuning, the backup tuning unit 200 includes a first tuning control board 210 and a second tuning control board 220, where the first tuning control board 210 and the second tuning control board 220 each have a manual backup tuning mode, and the manual backup tuning modes of the first tuning control board 210 and the second tuning control board 220 have a higher priority than the main tuning of the first main tuning subunit 110 and the second main tuning subunit 120. And, the first tuning control board 210 is used for inputting the backup tuning frequency and periodically reading the main tuning state data of the first main tuning subunit 110, the first tuning control board 210 is used for judging whether the first main tuning subunit 110 is in a fault state, the second tuning control board 220 is used for inputting the backup tuning frequency and periodically reading the main tuning state data of the second main tuning subunit 120, and the second tuning control board 220 is used for judging whether the second main tuning subunit 120 is in a fault state.
The execution unit 300 includes a radio navigation device 310, either one of the first tuning control board 210 and the second tuning control board 220 is used for performing backup tuning of the radio navigation device 310, and the first tuning control board 210 is used for performing synchronous backup tuning with the second tuning control board 220.
Specifically, the execution unit 300 includes a radio navigation device 310 at a first location and a radio navigation device 310 at a second location, when the first tuning control board 210 detects that the first main tuning subunit 110 is in a failure state, or when the second tuning control board 220 detects that the second main tuning subunit 120 is in a failure state, the first tuning control board 210 is used to perform backup tuning on the radio navigation device 310 at the first location, and the first tuning control board 210 is used to synchronize backup tuning data to the second tuning control board 220, or the second tuning control board 220 is used to perform backup tuning on the radio navigation device 310 at the second location, and the second tuning control board 220 is used to synchronize the backup tuning data to the first tuning control board 210. The radio navigation device 310, which includes ADF, DME, VOR, ILS/GLS/SLS related devices, is the target terminal for backup tuning.
Specifically, the backup tuning unit 200 includes a backup tuning port, that is, the first tuning control board 210 and the second tuning control board 220 each include a backup tuning port, which is in an active state.
Further, the backup tuning unit 200 includes a multi-function keypad area for inputting and displaying the target backup tuning frequency of the first tuning control board 210 or for inputting and displaying the target backup tuning frequency of the second tuning control board 220. And, the backup tuning unit 200 may support input and display of the frequency thousandth level.
It should be noted that the transmission unit 400 of the backup tuning system for a radio navigation device according to the present application is connected between the first tuning control board 210 and the second tuning control board 220, so as to implement synchronous backup tuning of the first tuning control board 210 and the second tuning control board 220. Specifically, the transmission unit 400 includes a central network 410, a first transmission medium and a second transmission medium, the central network 410 is connected between the main tuning unit 100 and the execution unit 300, the first transmission medium is connected between the first tuning control board 210 and the second tuning control board 220, for implementing data transmission between the first tuning control board 210 and the second tuning control board 220, where the first transmission medium is a cable or a network, the second transmission medium is used for the first tuning control board 210 to monitor the main tuning state of the first main tuning subunit 110, and the second transmission medium is used for the second tuning control board 220 to monitor the main tuning state of the second main tuning subunit 120.
The backup tuning system for the radio navigation device provided by the application uses the first tuning control board 210 to periodically read the main tuning state data of the first main tuning subunit 110, uses the second tuning control board 220 to periodically read the main tuning state data of the second main tuning subunit 120, judges whether two sets of FMS, namely the first main tuning subunit 110 and the second main tuning subunit 120, are in a fault state, and executes the backup tuning function if both sets of FMS main tuning are in the fault state. The first tuning control board 210 and the second tuning control board 220 are connected through a transmission medium to realize interconnection, so that mutual synchronization of tuning data is realized, namely, when any one of the first tuning control board 210 and the second tuning control board 220 performs backup tuning on the radio navigation device 310 at a corresponding position, the tuning data is automatically synchronized to the first tuning control board 210 or the second tuning control board 220 which are in interconnection, and backup tuning operation of the radio navigation device 310 at the other side is completed, namely, consistency of backup tuning frequencies of the radio navigation devices 310 at both sides is maintained.
Referring to fig. 4, fig. 4 is a schematic flow chart of a backup tuning method for radio navigation according to an embodiment of the present application, and the backup tuning method further includes the following steps:
(1) The first tuning control board 210 monitors the main tuning state of the first main tuning subunit 110, and the second tuning control board 220 monitors the main tuning state of the second main tuning subunit 120;
that is, the first and second tuning control boards 210 and 220 periodically monitor the main tuning fault state of the main tuning unit 100;
(2) Judging whether the first main tuning subunit 110 and the second main tuning subunit 120 are in fault or not, if yes, entering the next step (3), if not, judging whether the first tuning control board 210 or the second tuning control board 220 enters a manual backup tuning mode, if yes, the first tuning control board 210 or the second tuning control board 220 performs manual backup tuning, and entering the next step (3), if not, the first main tuning subunit 110 and the second main tuning subunit 120 perform main tuning;
(3) Either one of the first tuning control board 210 and the second tuning control board 220 performs backup tuning of the radio navigation device 310, and the first tuning control board 210 and the second tuning control board 220 perform synchronous backup tuning;
Wherein in the present step (3), before the backup tuning of the radio navigation device 310, the target backup tuning frequency of the first tuning control board 210 is manually input and synchronized to the second tuning control board 220, or the target backup tuning frequency of the second tuning control board 220 is manually input and synchronized to the first tuning control board 210;
Wherein, the first tuning control board 210 and the second tuning control board 220 are always in an active state, and the backup tuning ports of the first tuning control board 210 and the second tuning control board 220 are all in an active state.
The application also provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the method when the computer program is executed.
The application also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor realizes the steps of the method.
In the backup tuning system, method, computer device and computer readable storage medium for a radio navigation device according to the present application, tuning state data of a main tuning unit 100 is periodically monitored by using a first tuning control board 210 and a second tuning control board 220, when a failure state of the first main tuning subunit 110 and the second main tuning subunit 120 is read, tuning data manually input in a backup tuning mode of any one of the first tuning control board 210 and the second tuning control board 220 is first synchronized with tuning data of the other one of the first tuning control board 210 and the second tuning control board 220, and then the two paths of tuning data are each tuned by backup tuning interfaces on the radio navigation device 310 on a corresponding position side, so as to realize backup tuning of the radio navigation device 310 on the corresponding position side. In the backup tuning method, when a main tuning function failure of the main tuning unit 100 is detected, backup tuning of the two sets of radio navigation devices 310 can be realized by designing either one of the first tuning control board 210 and the second tuning control board 220 of the backup tuning unit 200 to synchronize backup tuning data. The backup tuning method can effectively avoid the traditional tuning mode that the working frequencies of the radio navigation devices on the left side and the right side are inconsistent due to backup tuning when the main tuning function of the FMS is normal, and can give a unified approach landing prompt of the working frequencies of the same radio navigation device on the left main display (PFD) and the right main display (PFD) observed by the front and the back drivers, particularly in an important flight phase of approach landing, thereby greatly improving the safety margin of an airplane and reducing the probability of accidents. In addition, the manual backup tuning modes of the first tuning control board 210 and the second tuning control board 220 have higher priority than the main tuning of the first main tuning subunit 110 and the second main tuning subunit 120, so that the highest priority level of manual manipulation can be ensured.
The backup tuning system, the backup tuning method, the backup tuning computer readable storage medium and the backup tuning computer device provided by the embodiments of the present application are described in detail, and specific examples are applied to illustrate the principles and implementations of the present application, and the description of the above embodiments is only for helping to understand the technical solutions and core ideas of the present application, and those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacement of some technical features of the foregoing embodiments, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A backup tuning system, comprising:
A main tuning unit (100), the main tuning unit (100) comprising a first main tuning subunit (110) and a second main tuning subunit (120);
the system comprises a backup tuning unit (200), wherein the backup tuning unit (200) comprises a first tuning control board (210) and a second tuning control board (220), the first tuning control board (210) and the second tuning control board (220) are provided with manual backup tuning modes, the manual backup tuning modes of the first tuning control board (210) and the second tuning control board (220) have higher priority than the main tuning of the first main tuning subunit (110) and the second main tuning subunit (120), the first tuning control board (210) is used for reading main tuning state data of the first main tuning subunit (110) to judge whether the first main tuning subunit (110) fails, the second tuning control board (220) is used for reading main tuning state data of the second main tuning subunit (120) to judge whether the second main tuning subunit (120) fails, and if the failure exists, the first tuning control board (210) and the second control board (220) performs the backup tuning on the radio tuning device (310) and the first tuning control board (220);
-an execution unit (300), the execution unit (300) comprising the radio navigation device (310), -the first tuning control board (210) or the second tuning control board (220) being used for back-up tuning of the radio navigation device (310), -the first tuning control board (210) being used for synchronized back-up tuning with the second tuning control board (220).
2. The backup tuning system of claim 1, further comprising a transmission unit (400), the transmission unit (400) being connected between the first tuning control board (210) and the second tuning control board (220) to synchronize backup tuning of the first tuning control board (210) with the second tuning control board (220).
3. The backup tuning system of claim 2, wherein the backup tuning unit (200) comprises a backup tuning port, the backup tuning port being in an active state.
4. A backup tuning system according to claim 3, wherein the backup tuning unit (200) comprises a multi-function keypad area, the first tuning control board (210) and the second tuning control board (220) being adapted to input and display a target backup tuning frequency via the multi-function keypad area.
5. The backup tuning system of claim 2, wherein the transmission unit (400) comprises a first transmission medium and a second transmission medium, the first transmission medium being connected between the first tuning control board (210) and the second tuning control board (220) for data output;
The second transmission medium is used for the first tuning control board (210) to monitor a main tuning state of the first main tuning subunit (110), and the second transmission medium is used for the second tuning control board (220) to monitor a main tuning state of the second main tuning subunit (120).
6. A backup tuning method, comprising the steps of:
(1) The first tuning control board (210) monitors the main tuning state of the first main tuning subunit (110), and the second tuning control board (220) monitors the main tuning state of the second main tuning subunit (120);
(2) Judging whether the first main tuning subunit (110) and the second main tuning subunit (120) are in fault or not, if yes, entering a next step (3), if not, judging whether the first tuning control board (210) or the second tuning control board (220) enters a manual backup tuning mode, if yes, the first tuning control board (210) or the second tuning control board (220) performs manual backup tuning, entering a next step (3), and if not, the first main tuning subunit (110) and the second main tuning subunit (120) perform main tuning;
(3) Either one of the first tuning control board (210) and the second tuning control board (220) performs backup tuning of a radio navigation device (310), and the first tuning control board (210) and the second tuning control board (220) perform synchronous backup tuning.
7. The backup tuning method of claim 6, wherein,
In step (3), the backup tuning ports of the first tuning control board (210) and the second tuning control board (220) are both set to an active state.
8. The backup tuning method of claim 6, wherein in step (2), the target backup tuning frequency of the first tuning control board (210) is manually input and synchronized to the second tuning control board (220), or the target backup tuning frequency of the second tuning control board (220) is manually input and synchronized to the first tuning control board (210), prior to backup tuning of the radio navigation device (310).
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method as claimed in claim 6 when the computer program is executed by the processor.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method as claimed in claim 6.
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| CN1490968A (en) * | 2002-10-15 | 2004-04-21 | 华为技术有限公司 | Optical wavelength channel protection method and device for dense wavelength division multiplexing system |
| CN114035423A (en) * | 2021-11-04 | 2022-02-11 | 北京广利核系统工程有限公司 | Priority drive management system |
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| US6650649B1 (en) * | 1998-07-24 | 2003-11-18 | Hughes Electronics Corporation | Extension interface units in a communication system |
| US8472888B2 (en) * | 2009-08-25 | 2013-06-25 | Research In Motion Rf, Inc. | Method and apparatus for calibrating a communication device |
| US9301177B2 (en) * | 2013-12-18 | 2016-03-29 | Google Technology Holdings LLC | Method and system to improve antenna tuner reliability |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1490968A (en) * | 2002-10-15 | 2004-04-21 | 华为技术有限公司 | Optical wavelength channel protection method and device for dense wavelength division multiplexing system |
| CN114035423A (en) * | 2021-11-04 | 2022-02-11 | 北京广利核系统工程有限公司 | Priority drive management system |
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