CN114598385A - Method, device and system for hot standby of command center terminal - Google Patents
Method, device and system for hot standby of command center terminal Download PDFInfo
- Publication number
- CN114598385A CN114598385A CN202011407540.3A CN202011407540A CN114598385A CN 114598385 A CN114598385 A CN 114598385A CN 202011407540 A CN202011407540 A CN 202011407540A CN 114598385 A CN114598385 A CN 114598385A
- Authority
- CN
- China
- Prior art keywords
- signal
- optical
- optical fiber
- terminal
- fiber integrated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
- H04L41/0836—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability to enhance reliability, e.g. reduce downtime
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
Abstract
The invention relates to a hot standby method, a device and a system for a command center terminal, wherein the method comprises the following steps: converting an analog signal transmitted by front-end equipment into an original optical signal and copying a plurality of paths of copied optical signals which are the same as the original optical signal; carrying out the same initialization setting on at least one optical fiber integrated terminal, and carrying out signal synchronization and signal conversion among a plurality of optical fiber integrated terminals; monitoring the running states of all the optical fiber integrated terminals in real time; and decoding the optical signal sent by the at least one optical fiber integrated terminal, converting the optical signal into an analog signal and outputting the analog signal to terminal equipment. The invention has the advantages of increasing signal source shunting, merging and signal source synchronous control, realizing real-time hot standby of the system and greatly improving the reliability of system operation.
Description
Technical Field
The invention belongs to the technical field of command center terminal backup, and particularly relates to a hot standby method, device and system for a command center terminal.
Background
With the speed of urbanization in China being accelerated, a large number of population is gathered to cities, which has high requirements on the comprehensive management capability of management departments in China. Therefore, the command center has more and more requirements for items with information aggregation, command decision and situation study and judgment, the traditional command center item usually adopts an analog signal mode to realize the access of various signals, and the mode is relatively complex in control, operation, maintenance and system butt joint, so that a distributed system is generated. The distributed system solves the problem of access of various analog signals, makes operation, maintenance, control and system docking easier, but simultaneously, the distributed system also brings a new problem, namely high delay. In order to solve the problem of high delay, the optical fiber integrated terminal is applied to a command center project in a proper way, the system architecture of the optical fiber integrated terminal belongs to a star-shaped architecture, the requirement on the reliability of the integrated terminal is extremely high, once the terminal fails, the whole system is down, and the normal use of the system is seriously threatened. The existing optical fiber integrated terminal cannot perform real-time backup and seamless switching, and cannot ensure the safe and stable operation of the whole system in an application scene with extremely high requirements on equipment reliability, such as a command center. Once the optical fiber integrated terminal goes down, the whole audio/video signals, control signals, data signals and the like cannot be transmitted, and the system is greatly influenced. Therefore, a technology capable of performing real-time backup and seamless switching to ensure safe and stable operation of a command center system is urgently needed.
Disclosure of Invention
The invention aims to provide a hot standby method, a hot standby device and a hot standby system for a command center terminal, so as to solve the technical problem.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a hot standby method for a command center terminal, which comprises the following steps:
converting an analog signal transmitted by front-end equipment into an original optical signal and copying a plurality of paths of copied optical signals which are the same as the original optical signal;
carrying out the same initialization setting on at least one optical fiber integrated terminal, and carrying out signal synchronization and signal conversion among a plurality of optical fiber integrated terminals;
monitoring the running states of all the optical fiber integrated terminals in real time;
and decoding the optical signal sent by the at least one optical fiber integrated terminal, converting the optical signal into an analog signal and outputting the analog signal to terminal equipment.
Preferably, before converting the analog signal transmitted by the front-end device into the original optical signal and copying a plurality of copied optical signals identical to the original optical signal, the method further includes the steps of:
sampling the analog signal transmitted by the front-end equipment at a sampling rate which is at least 2 times of the highest frequency to obtain a plurality of samples and output discrete signals;
hierarchically quantizing each of the samples;
after the samples are quantized in a grading way, coding is carried out according to a preset format, and the analog signals with codes are output;
and taking the analog signal with the code as the analog signal transmitted by the front-end equipment, converting the analog signal transmitted by the front-end equipment into an original optical signal and copying a plurality of paths of copied optical signals identical to the original optical signal in the step, and outputting the original optical signal with the code and the copied optical signal with the code.
Preferably, the step of monitoring the operating states of all the optical fiber integrated terminals in real time includes:
step S312, judging whether an optical fiber integrated terminal sends a signal or not, if so, performing step S314, otherwise, performing step S314 after step S320;
step S314, judging whether another optical fiber integrated terminal sends a signal, if so, performing step S316, otherwise, performing step S320 and then performing step S316;
step S316, judging whether the operation of the optical fiber integrated terminal is normal one by one, if so, performing step S318, otherwise, performing step S318 after step S320;
step S318, combining all the optical signals respectively output by the optical fiber integrated terminal into one path; specifically, after the optical signals are combined into one path, the step S140 is performed to decode the optical signal sent by the at least one optical fiber integrated terminal, and convert the optical signal into an analog signal to output to the terminal device;
and step S320, recording the abnormal state and sending out alarm information.
Preferably, the at least one fiber-optic integrated terminal comprises a fiber-optic integrated terminal a and a fiber-optic integrated terminal B.
Preferably, the monitoring the operation states of all the optical fiber integrated terminals in real time includes:
step S410, judging whether the optical fiber integrated terminal A and the optical fiber integrated terminal B have signals or not; if yes, go to step S420, if no, go to step S412;
step S412, judging whether the optical fiber integrated terminal A sends a signal or not, and if so, performing step S414; if not, go to step S416;
step S414, judging whether the optical fiber integrated terminal B sends a signal, if so, performing step S420; if not, go to step S416;
step S416, recording the abnormal state, sending out alarm information, and directly performing step S44O;
step S420, judging whether the optical fiber integrated terminal A and the optical fiber integrated terminal B operate normally, if so, performing step S430; if not, go to step S416 while going to step S430 and not go to step S440 through step S416;
step S430, combining the two signals into one signal;
and step S440, decoding, converting into an analog signal and sending to the terminal equipment.
The application of the invention also provides a hot standby device of the command center terminal, which comprises:
a signal multiplexing unit for converting the analog signal into an optical signal; the optical signal processing device is also used for copying a plurality of paths of copied optical signals which are the same as the original optical signals;
the signal control unit is used for carrying out the same initialization setting on at least one optical fiber integrated terminal; the optical fiber integrated terminal is also used for sending the original optical signal to a first optical fiber integrated terminal and sending the copied optical signal to other optical fiber integrated terminals; the system is also used for carrying out signal synchronization, signal conversion and signal monitoring among a plurality of optical fiber integrated terminals;
the signal control unit comprises a signal synchronization module, a signal conversion module and a real-time monitoring module;
the signal synchronization module is used for being responsible for signal synchronization among the optical fiber integrated terminals;
the signal conversion module is used for converting the analog signal transmitted by the front-end equipment into an original optical signal; the optical fiber integrated terminal is also used for being responsible for signal conversion among a plurality of optical fiber integrated terminals;
the real-time monitoring module is used for monitoring the running states of all the optical fiber integrated terminals in real time;
and the signal decoding module is used for decoding the optical signal sent by the at least one optical fiber integrated terminal and converting the optical signal into an analog signal.
Preferably, the signal multiplexing unit includes a sampling module, a quantization module, an encoding module, a content multiplexing module, a sampling module, and a data transmission module;
the sampling module is used for sampling the highest frequency of the analog signal transmitted by the front-end equipment at a sampling rate which is at least 2 times higher than the highest frequency of the analog signal to obtain a plurality of samples and outputting a discrete signal;
the quantization module to hierarchically quantize each of the samples;
the coding module is used for coding the samples according to a preset format after the samples are subjected to hierarchical quantization and outputting the analog signals with codes;
the content multiplexing module is used for copying a plurality of paths of copied optical signals which are the same as the original optical signals, copying the codes and keeping original mutually corresponding fixed association with the corresponding original optical signals and the copied optical signals respectively;
the sampling module is used for respectively sampling and comparing the original optical signal with the code and the copied optical signal with the code with the analog signal transmitted by the front-end equipment according to a specific time period T;
and the data transmission module is used for decoding the optical signal sent by the at least one optical fiber integrated terminal, converting the optical signal into an analog signal and outputting the analog signal to terminal equipment.
Preferably, the device is connected with the signal source generating device and the terminal equipment;
the terminal equipment is used for displaying and/or operating the analog signal; the terminal equipment comprises various display and/or operation equipment;
the signal source generating device is used for generating the transmitted analog signal as a signal source; the signal source generating device is arranged in the front-end equipment, and the front-end equipment comprises: a server, or a DVD, or an audio processing device, or a high definition video matrix, or an audio source device, or a video source device.
The invention further provides a hot standby system of the command center terminal, and the hot standby system of the command center terminal is used for realizing the hot standby method of the command center terminal in any embodiment of the invention.
The invention further provides a storage medium on which a computer program is stored, wherein the computer program is used for realizing the hot standby method of the command center terminal in any embodiment of the invention when being executed by a processor.
According to the method, the device and the system for hot standby of the command center terminal, signal source conversion and shunting, signal source transmission control, signal source synchronization and signal source combination are adopted, so that shunting, combination and signal source synchronization control of a signal source are increased, real-time hot standby of the system is realized, and the reliability of system operation is greatly improved. The technical scheme provided by the invention has the beneficial effects that the reliability of the system is improved and the system can operate efficiently and stably while the low delay of the system is ensured through the two optical fiber integrated terminals, the signal multiplexing module, the signal synchronization module and the signal merging module.
Drawings
Fig. 1 is a flowchart of a hot standby method of a command center terminal according to an embodiment of the present invention;
fig. 2a is a flowchart illustrating steps before converting an analog signal transmitted from a front-end device into an original optical signal and copying a plurality of copied optical signals that are the same as the original optical signal according to an embodiment of the present invention;
fig. 2b is a flowchart of steps after converting an analog signal transmitted from a front-end device into an original optical signal and copying a plurality of copied optical signals that are the same as the original optical signal according to an embodiment of the present invention;
fig. 3a is a flowchart illustrating the steps of monitoring the operating status of all the optical fiber integrated terminals in real time according to an embodiment of the present invention;
fig. 3B is a flowchart illustrating a procedure of monitoring an operation status of all the optical fiber integrated terminals in real time when the at least one optical fiber integrated terminal according to another embodiment of the present invention includes an optical fiber integrated terminal a and an optical fiber integrated terminal B;
fig. 4 is a schematic diagram of a hot standby device of a command center terminal according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a signal flow direction of a hot standby system of a command center terminal according to an embodiment of the present invention.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating a hot standby method of a command center terminal according to an embodiment of the present invention; the hot standby method for the command center terminal comprises the following steps:
step S110, converting the analog signal transmitted by the front-end equipment into an original optical signal and copying a plurality of paths of copied optical signals which are the same as the original optical signal; specifically, the original optical signal and the multiple paths of copied optical signals are sent to a corresponding module in the next step;
step S120, carrying out the same initialization setting on at least one optical fiber integrated terminal, and carrying out signal synchronization and signal conversion among a plurality of optical fiber integrated terminals;
specifically, the initialization setting includes that a system defaults to send an original optical signal to a first optical fiber integration terminal and sends the copied optical signal to other optical fiber integration terminals;
step S130, monitoring the running states of all the optical fiber integrated terminals in real time;
step S140, decoding the optical signal sent by the at least one optical fiber integrated terminal, converting the optical signal into an analog signal and outputting the analog signal to terminal equipment;
for example, there are two optical fiber integrated terminals a and B, converting an analog signal transmitted from a front-end device into an original optical signal, copying a plurality of copied optical signals that are the same as the original optical signal, and transmitting the original optical signal and the plurality of copied optical signals to a module corresponding to the next step; carrying out the same initialization setting on the optical fiber integrated terminal A and the optical fiber integrated terminal B; the system sends an original optical signal to an optical fiber integrated terminal A and sends a copied optical signal to an optical fiber integrated terminal B, wherein the system is an instruction central system; monitoring the running states of the optical fiber integrated terminal A and the optical fiber integrated terminal B in real time; decoding the optical signals sent by the optical fiber integrated terminal A and the optical fiber integrated terminal B, converting the optical signals into analog signals and sending the analog signals to terminal equipment; in this step, the optical signals output by the fiber-optic integrated terminal a and the fiber-optic integrated terminal B are converted into analog signals, respectively, and are sent to the terminal device.
Referring to fig. 2a, fig. 2a is a flowchart illustrating steps before converting an analog signal transmitted by a front-end device into an original optical signal and copying a plurality of copied optical signals that are the same as the original optical signal according to an embodiment of the present invention; the steps include:
step S210, sampling the analog signal transmitted by the front-end equipment at a sampling rate at least 2 times higher than the highest frequency to obtain a plurality of samples and output discrete signals;
for example, sampling at a sampling rate of 2 times the maximum frequency of the analog signal; therefore, the signals can be conveniently and truly restored subsequently, the highest frequency of the analog signals is set to be 1KHZ, and then sampling is carried out at the speed of 2KHZ to obtain 2000 samples, namely discrete signals are formed; the discrete signal is an analog signal;
step S220, carrying out hierarchical quantization on each sample;
specifically, the more stages, the more realistic the restoration, the closer to the original analog signal, but the more data is generated; for example, in two stages, each sample can be represented by a two-bit binary number, 0 and 1; if 16 levels are used, 0 and 1 are used for representing 16 different states, and 4-bit binary digits are used; if the grade is 128, 7-bit binary digits are needed, and the like;
step S230, after the samples are quantized in a hierarchical manner, encoding the samples according to a preset format, and outputting the analog signals with codes; specifically, the samples are samples of analog signals transmitted from a front-end device;
step S240, using the analog signal with the code as the analog signal transmitted by the front-end device in step S110, and outputting an original optical signal with the code and a copied optical signal with the code;
specifically, in the process of converting into the original optical signal and copying a plurality of copied optical signals identical to the original optical signal in step S110, the codes are copied and the original corresponding fixed association between the original optical signal and the copied optical signal is maintained.
Referring to fig. 2b, fig. 2b is a flowchart illustrating steps that are included after converting an analog signal transmitted by a front-end device into an original optical signal and copying a plurality of copied optical signals that are the same as the original optical signal according to an embodiment of the present invention; the steps include:
step S250, according to a specific time period T, sampling and comparing the original optical signal with the code and the copied optical signal with the code with the analog signal transmitted by the front-end equipment respectively;
specifically, sampling and comparing the copied content corresponding to the code with the original content corresponding to the code according to a specific time period T;
step S260, if the data are consistent, performing the step S120; in particular, the data comprises the transmission content of the original optical signal and/or the replicated optical signal and the analog signal.
Step S270, if the data are inconsistent, copying according to the analog signal with the code, and performing the step S120;
specifically, if the data are inconsistent, copying and transmitting the data according to the original coding content;
referring to fig. 3a, fig. 3a is a flowchart illustrating a step of monitoring the operation states of all the optical fiber integrated terminals in real time according to another embodiment of the present invention; the steps include:
step S312, judging whether an optical fiber integrated terminal sends a signal or not, if so, performing step S314, otherwise, performing step S314 after step S320;
step S314, judging whether another optical fiber integrated terminal sends a signal or not, if so, performing step S316, and if not, performing step S320 and then performing step S316;
step S316, judging whether the operation of the optical fiber integrated terminal is normal one by one, if so, performing step S318, and if not, performing step S318 after step S320;
step S318, combining all the optical signals respectively output by the optical fiber integrated terminal into one path; specifically, after the optical signals are combined into one path, the step S140 is performed to decode the optical signal sent by the at least one optical fiber integrated terminal, and convert the optical signal into an analog signal to output to the terminal device;
and step S320, recording the abnormal state and sending out alarm information.
Can real-time supervision arbitrary the signal and the running state of optic fibre integration terminal through this embodiment, have the record abnormal state that can be complete clear, send alarm information, can also be directed against the actual conditions of current optic fibre integration terminal operation simultaneously, decode nimble, swift, accurately, convenient maintenance to convert the beneficial effect that analog signal sent for the terminal.
Referring to fig. 3B, fig. 3B is a flowchart illustrating a procedure of monitoring an operation state of all the optical fiber integrated terminals in real time when the optical fiber integrated terminal according to another embodiment of the present invention includes the optical fiber integrated terminal a and the optical fiber integrated terminal B, where the procedure includes:
step S410, judging whether the optical fiber integrated terminal A and the optical fiber integrated terminal B have signals or not; if yes, go to step S420, if no, go to step S412;
step S412, judging whether the optical fiber integrated terminal A sends a signal, if so, performing step S414, and if not, performing step S416;
step S414, judging whether the optical fiber integrated terminal B sends a signal, if so, performing step S420, and if not, performing step S416;
step S416, recording the abnormal state, sending out alarm information, and directly performing step S44O;
step S420, judging whether the optical fiber integrated terminal A and the optical fiber integrated terminal B operate normally, if so, performing step S430, and if not, performing step S416 and step S430 at the same time and not performing step S440 through step S416;
step S430, combining the two signals into one signal;
and step S440, decoding, converting into an analog signal and sending to the terminal equipment. Specifically, in this step, the optical signals transmitted from the optical fiber integrated terminal a and the optical fiber integrated terminal B are decoded, converted into analog signals, and transmitted to the terminal device.
The embodiment can realize real-time monitoring of the running states of the optical fiber integrated terminal A and the optical fiber integrated terminal B, has the advantages of being capable of completely and clearly recording abnormal states, sending out alarm information, flexibly, quickly and accurately decoding the existing optical fiber integrated terminal A and the actual running situation of the optical fiber integrated terminal B, facilitating later maintenance and converting the information into analog signals to send the analog signals to the terminal.
In some optional embodiments, the step of monitoring the operation states of the fiber-optic integrated terminal a and the fiber-optic integrated terminal B in real time may include:
if A, B is detected to run normally, normal state monitoring is continuously kept;
if the A or B state is monitored to be abnormal or the signals are asynchronous, alarm information is sent;
specifically, the signals include signals input to the fiber-optic integrated terminal and signals output from the fiber-optic integrated terminal;
if no signal is monitored in the step A or the step B, alarm information is sent;
if the optical fiber integrated terminals A and B output optical signals, combining the two optical signals into one optical signal; then, step S140 is performed to decode the optical signal sent by the at least one optical fiber integrated terminal, and convert the optical signal into an analog signal to output to the terminal device;
if only one path of optical signal A or B is monitored to be output, the combined signal is automatically skipped, and then step S140 is performed to decode the optical signal sent by the at least one optical fiber integrated terminal, and the optical signal is converted into an analog signal to be output to the terminal equipment.
Referring to fig. 4, fig. 4 is a schematic diagram of a hot standby device of a command center terminal according to an embodiment of the present invention; the hot standby device of the command center terminal comprises:
the signal conversion module 1 is used for converting an analog signal transmitted by front-end equipment into an original optical signal;
a signal multiplexing unit 2, configured to duplicate a plurality of duplicate optical signals identical to the original optical signals, and further configured to convert the analog signals into the optical signals;
the signal control unit 3 is used for carrying out the same initialization setting on at least one optical fiber integrated terminal; specifically, the initialization setting includes that a system defaults to send an original optical signal to a first optical fiber integration terminal and sends the copied optical signal to other optical fiber integration terminals; the signal control unit 3 is further used for performing signal synchronization, signal conversion and signal monitoring among a plurality of optical fiber integrated terminals (not shown in the figure);
the signal control unit 3 comprises a signal synchronization module 4, a real-time monitoring module 5 and a signal conversion module 1;
the signal synchronization module 4 is used for taking charge of signal synchronization among a plurality of optical fiber integrated terminals;
the signal conversion module 1 is used for carrying out signal conversion among a plurality of optical fiber integrated terminals;
the real-time monitoring module 5 is used for monitoring the running state of the at least one optical fiber integrated terminal in real time; specifically, the method comprises the steps of monitoring signals among a plurality of optical fiber integrated terminals; the signal monitoring comprises a signal synchronization operation state and a signal conversion operation state;
the signal decoding module 6 is used for decoding the optical signal sent by the at least one optical fiber integrated terminal and converting the optical signal into an analog signal;
the signal multiplexing unit 2 includes:
the sampling module 11 is configured to sample the analog signal transmitted by the front-end device at a sampling rate at least 2 times higher than the highest frequency of the analog signal to obtain a plurality of samples and output a discrete signal;
specifically, the signal can be conveniently and truly restored subsequently, for example, if the highest frequency of the analog signal is 1KHZ, sampling is carried out at the rate of 2KHZ, 2000 samples are obtained, and then the discrete signal is formed;
a quantization module 12 for hierarchically quantizing each of the samples;
specifically, the more stages, the more realistic the restoration, the closer to the original analog signal, but the more data is generated; for example, in two stages, each sample can be represented by a two-bit binary number, 0 and 1; if 16 levels are used, 0 and 1 are used for representing 16 different states, and 4-bit binary digits are used; if the grade is 128, 7-bit binary digits are needed, and the like;
the coding module 13 is configured to perform coding according to a preset format after performing hierarchical quantization on the samples, and output the analog signal with the coding;
a content multiplexing module 14, configured to copy a plurality of copied optical signals that are the same as the original optical signals, copy the codes, and keep original corresponding fixed associations with the corresponding original optical signals and the copied optical signals, respectively;
a sampling module 15, configured to perform sampling comparison on the original optical signal with the code and the replica optical signal with the code, respectively, and the analog signal transmitted by the front-end device according to a specific time period T;
and the data transmission module 16 is configured to decode an optical signal sent by the at least one optical fiber integrated terminal, convert the optical signal into an analog signal, and output the analog signal to the terminal device.
The method and the device have the advantages that the device can be backed up in real time, seamless switching can be achieved, and the device and the system can be guaranteed to run safely and stably.
Referring to fig. 5, fig. 5 is a schematic signal flow diagram of a hot standby system of a command center terminal according to another embodiment of the present invention; the system comprises a signal source generating device 21, a signal multiplexing unit 2, an optical fiber integrated terminal A22, an optical fiber integrated terminal B23, a signal synchronization module 4, a signal decoding module 6 and terminal equipment 24, wherein signals flow to the diagram shown in FIG. 5;
specifically, the signal source generating device 21 includes: the system comprises a server, a DVD, audio processing equipment, a high-definition video matrix, audio source equipment, video source equipment, audio receiving equipment, video receiving equipment and the like, wherein generated signals are mainly divided into audio signals, video signals and control signals.
The signal multiplexing module 2 is a system for converting analog signals into optical fiber signals based on mode division multiplexing and realizing multi-path copying, and mainly comprises two functions, wherein the first function is to convert various analog signals into optical signals, and the second function is to perform undifferentiated copying on the signals in a mode of mode division multiplexing.
As shown in fig. 5, in some alternative embodiments, the system includes a fiber-optic integrated terminal a22B and a fiber-optic integrated terminal B23B, a signal source generating device 21B, a signal multiplexing unit 2B, a signal synchronization module 4B, a signal decoding module 6B, and a terminal device 24B;
the optical fiber integrated terminal A22B and the optical fiber integrated terminal B23B are respectively a set of audio and video scheduling and KVM service core equipment and are used for solving interconnection and switching of audio and video and KVM control signals of various command and scheduling centers, the system adopts an all-fiber architecture, an optical fiber KVM technology is taken as a core, FPGA development is based, a non-TCP/IP private protocol and a closed-loop all-fiber architecture of a non-switch are used for realizing physical isolation among different areas, management control information of front-end equipment is transmitted by matching a KVM seat terminal with a special optical fiber physical channel, the whole set of system can enable signals constructed in different areas to be shared in real time, a user can easily achieve the aims of multi-area information cooperation and resource sharing integrated operation and control, the system is a novel integrated solution with high reliability and excellent operation experience, an integral solution is provided for efficient command, and collection management is realized, Functions of efficient coordination, real-time control, information communication, safety control and the like;
the signal control unit 3b comprises the signal synchronization module (not shown in the figure), a real-time monitoring module (not shown in the figure) and a signal conversion module (not shown in the figure);
the signal control unit 3B is responsible for signal synchronization, signal conversion and signal monitoring between the fiber-optic integrated terminal a22B and the fiber-optic integrated terminal B23B; the unit forms a complete signal monitoring, synchronizing and converting control function through a multi-channel signal synchronous acquisition module, a power supply module, an FPGA unit and an ARM processor unit.
The signal synchronization module (not shown in fig. 5) is used for taking charge of signal synchronization between the fiber-optic integrated terminal a22b and the fiber-optic integrated terminal a23 b; in some optional embodiments, the signal synchronization module synchronizes the acquisition module, the power module, the FPGA unit, and the ARM processor unit through a multi-channel signal;
a real-time monitoring module (not shown in fig. 5) for monitoring signals between the fiber-optic integrated terminal a22b and the fiber-optic integrated terminal a23 b; in some optional embodiments, the real-time monitoring module forms a complete signal monitoring through the multi-channel signal synchronous acquisition module, the power supply module, the FPGA unit and the ARM processor unit;
a signal conversion module (not shown in fig. 5) for performing signal conversion between the fiber-optic terminal a22b and the fiber-optic terminal a23 b; in some optional embodiments, the signal conversion module forms a complete signal conversion through the multi-channel signal synchronous acquisition module, the power supply module, the FPGA unit and the ARM processor unit;
and the signal decoding module 6b is used for converting the optical signal transmitted from the front end into a corresponding analog signal and sending the analog signal to the terminal equipment.
A terminal device 24b for displaying and/or operating the analog signal; specifically, the terminal device 24b includes various display and/or operation devices; for example, the projector, the tiled screen, the LED display screen, the liquid crystal display screen, the all-in-one machine, and may also include a mouse, a keyboard, a VR device, and the like;
the signal source generating device 21b is configured to generate the transmitted analog signal as a signal source; the signal source generating device is arranged in the front-end equipment, and the front-end equipment comprises: a server, or a DVD, or an audio processing device, or a high definition video matrix, or an audio source device, or a video source device;
the functions of the signal multiplexing unit 2b and other necessary modules are the same as those of any one of the above embodiments of the command center terminal hot standby device.
The embodiment of the present invention further provides a hot standby system for a command center terminal, where the hot standby system for a command center terminal includes: the invention relates to a hot standby method for a command center terminal. According to the hot standby method, the device and the system for the command center terminal, signal source conversion and shunting, signal source transmission control, signal source synchronization and signal source combination are adopted, so that shunting, combination and signal source synchronization control of the signal source are increased, real-time hot standby and seamless switching of the system are realized, and the reliability of system operation is greatly improved. The technical scheme provided by the invention has the beneficial effects that the reliability of the system is improved and the system can operate efficiently and stably while the low delay of the system is ensured through the two optical fiber integrated terminals, the signal multiplexing module, the signal synchronization module and the signal merging module.
According to another embodiment of the present invention, according to the measurement and calculation, the average annual fault rate corresponding to the single-machine optical fiber integrated terminal is:
λ1＝365*24/100000＝8.76％；
the at least one optical fiber integrated terminal according to another embodiment of the present invention includes an optical fiber integrated terminal a and an optical fiber integrated terminal B, where the optical fiber integrated terminal a and the optical fiber integrated terminal B together form a dual-device hot standby, and after the implementation of the present technical solution, the systems all form a hot standby structure. According to the equipment characteristics of the optical fiber integrated audio and video system, the fault-free running time MTBF can still be selected as 10 ten thousand hours as the typical reliability parameter of the equipment, so that the average annual fault rate of the optical fiber integrated audio and video system is as follows: λ 2 ═ 365 ═ 24/100000 ═ 8.76%.
According to the overall fault probability of the dual-computer hot standby system, the average annual fault rate corresponding to the invention can be calculated as follows:
λ3＝λ1*λ2＝0.77％；
the reliability improvement effect of the hot standby system of the command center terminal is obvious; especially, the reliability improvement effect of the dual-computer hot standby system is obvious, the annual fault rate of the system is reduced by more than 90% compared with the prior art, and the effect is obvious.
Embodiments of the present application further provide an electronic device comprising a processor and a machine-readable storage medium storing machine-executable instructions executable by the processor, the processor-executable instructions, when invoked and executed by the processor, causing the processor to: the hot standby method of the command center terminal is realized according to any embodiment of the invention.
An embodiment of the present invention further provides a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the hot standby method of the command center terminal according to any one of the above embodiments.
The system/computer device integrated components/modules/units, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the above embodiments may be implemented by a computer program, which may be stored in a computer readable storage medium and used by a processor to implement the steps of the above method embodiments. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable storage medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The invention is not the best known technology.
In the several embodiments provided in the present invention, it should be understood that the disclosed system and method may be implemented in other ways. For example, the system embodiments described above are merely illustrative, and for example, the division of the components is only one logical division, and other divisions may be realized in practice.
In addition, each functional module/component in each embodiment of the present invention may be integrated into the same processing module/component, or each module/component may exist alone physically, or two or more modules/components may be integrated into the same module/component. The integrated modules/components can be implemented in the form of hardware, or can be implemented in the form of hardware plus software functional modules/components.
It will be evident to those skilled in the art that the embodiments of the present invention are not limited to the details of the foregoing illustrative embodiments, and that the embodiments of the present invention are capable of being embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the embodiments being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. Several units, modules or means recited in the system, device or terminal claims may also be implemented by one and the same unit, module or means in software or hardware. The terms first, second, etc. are used to denote names, but not to denote any particular order.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (10)
1. A hot standby method for a command center terminal is characterized by comprising the following steps:
converting an analog signal transmitted by front-end equipment into an original optical signal and copying a plurality of paths of copied optical signals which are the same as the original optical signal;
carrying out the same initialization setting on at least one optical fiber integrated terminal, and carrying out signal synchronization and signal conversion among a plurality of optical fiber integrated terminals;
monitoring the running states of all the optical fiber integrated terminals in real time;
and decoding the optical signal sent by the at least one optical fiber integrated terminal, converting the optical signal into an analog signal and outputting the analog signal to terminal equipment.
2. The method of claim 1, wherein before converting the analog signal transmitted from the front-end device into an original optical signal and copying a plurality of copied optical signals identical to the original optical signal, the method further comprises:
sampling the analog signal transmitted by the front-end equipment at a sampling rate which is at least 2 times of the highest frequency to obtain a plurality of samples and output discrete signals;
hierarchically quantizing each of the samples;
after the samples are quantized in a grading way, coding is carried out according to a preset format, and the analog signals with codes are output;
and taking the analog signal with the code as the analog signal transmitted by the front-end equipment, converting the analog signal transmitted by the front-end equipment into an original optical signal and copying a plurality of paths of copied optical signals which are the same as the original optical signal in the step for use, and outputting the original optical signal with the code and the copied optical signal with the code.
3. The method for hot standby of a command center terminal according to claim 1, wherein the step of monitoring the operation status of all the fiber-optic integrated terminals in real time comprises:
step S312, judging whether an optical fiber integrated terminal sends a signal or not, if so, performing step S314, otherwise, performing step S314 after step S320;
step S314, judging whether another optical fiber integrated terminal sends a signal, if so, performing step S316, otherwise, performing step S320 and then performing step S316;
step S316, judging whether the operation of the optical fiber integrated terminal is normal one by one, if so, performing step S318, and if not, performing step S318 after step S320;
step S318, combining all the optical signals respectively output by the optical fiber integrated terminal into one path; specifically, after the optical signals are combined into one path, the step S140 is performed to decode the optical signal sent by the at least one optical fiber integrated terminal, and convert the optical signal into an analog signal to output to the terminal device;
and step S320, recording the abnormal state and sending out alarm information.
4. The command center terminal hot-standby method according to claim 1, wherein the at least one fiber-optic integrated terminal comprises a fiber-optic integrated terminal a and a fiber-optic integrated terminal B.
5. The method for hot standby of command center terminals according to claim 4, wherein the monitoring of the operating status of all the fiber-optic integrated terminals in real time comprises the steps of:
step S410, judging whether the optical fiber integrated terminal A and the optical fiber integrated terminal B have signals or not; if yes, go to step S420, if no, go to step S412;
step S412, judging whether the optical fiber integrated terminal A sends a signal or not, and if so, performing step S414; if not, go to step S416;
step S414, judging whether the optical fiber integrated terminal B sends a signal or not, and if so, performing step S420; if not, go to step S416;
step S416, recording the abnormal state, sending alarm information, and directly performing step S44O;
step S420, judging whether the optical fiber integrated terminal A and the optical fiber integrated terminal B operate normally, if so, performing step S430; if not, go to step S416 while going to step S430 and not go to step S440 through step S416;
step S430, combining the two signals into one signal;
and step S440, decoding, converting into an analog signal and sending to the terminal equipment.
6. A hot standby device for a command center terminal, the device comprising:
a signal multiplexing unit for converting the analog signal into an optical signal; the optical signal processing device is also used for copying a plurality of paths of copied optical signals which are the same as the original optical signals;
the signal control unit is used for carrying out the same initialization setting on at least one optical fiber integrated terminal; the optical fiber integrated terminal is also used for sending the original optical signal to a first optical fiber integrated terminal and sending the copied optical signal to other optical fiber integrated terminals; the system is also used for carrying out signal synchronization, signal conversion and signal monitoring among a plurality of optical fiber integrated terminals;
the signal control unit comprises a signal synchronization module, a signal conversion module and a real-time monitoring module;
the signal synchronization module is used for being responsible for signal synchronization among the optical fiber integrated terminals;
the signal conversion module is used for converting the analog signal transmitted by the front-end equipment into an original optical signal; the optical fiber integrated terminal is also used for being responsible for signal conversion among a plurality of optical fiber integrated terminals;
the real-time monitoring module is used for monitoring the running states of all the optical fiber integrated terminals in real time;
and the signal decoding module is used for decoding the optical signal sent by the at least one optical fiber integrated terminal and converting the optical signal into an analog signal.
7. The command center terminal hot standby device according to claim 6, wherein the signal multiplexing unit comprises a sampling module, a quantization module, an encoding module, a content multiplexing module, a sampling module, and a data transmission module;
the sampling module is used for sampling the highest frequency of the analog signal transmitted by the front-end equipment at a sampling rate which is at least 2 times higher than the highest frequency of the analog signal to obtain a plurality of samples and outputting a discrete signal;
the quantization module is used for carrying out hierarchical quantization on each sample;
the coding module is used for coding the samples according to a preset format after the samples are subjected to hierarchical quantization and outputting the analog signals with codes;
the content multiplexing module is used for copying a plurality of paths of copied optical signals which are the same as the original optical signals, copying the codes and keeping original mutually corresponding fixed association with the corresponding original optical signals and the copied optical signals respectively;
the sampling module is used for respectively sampling and comparing the original optical signal with the code and the copied optical signal with the code with the analog signal transmitted by the front-end equipment according to a specific time period T;
and the data transmission module is used for decoding the optical signal sent by the at least one optical fiber integrated terminal, converting the optical signal into an analog signal and outputting the analog signal to terminal equipment.
8. The command center terminal hot standby device according to claim 7, wherein the device is connected with the signal source generating device and the terminal equipment;
the terminal equipment is used for displaying and/or operating the analog signal;
the signal source generating device is used for generating the transmitted analog signal as a signal source; the signal source generating device is arranged on the front-end equipment, and the front-end equipment comprises a server, or a DVD, or an audio processing device, or a high-definition video matrix, or an audio source device, or a video source device.
9. A command center terminal hot standby system, characterized in that the command center terminal hot standby system is used to implement the command center terminal hot standby method of any one of claims 1 to 6.
10. A storage medium having stored thereon a computer program, wherein the computer program is adapted to implement the command center terminal hot-standby method of any one of claims 1 to 6 when executed by a processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011407540.3A CN114598385A (en) | 2020-12-04 | 2020-12-04 | Method, device and system for hot standby of command center terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011407540.3A CN114598385A (en) | 2020-12-04 | 2020-12-04 | Method, device and system for hot standby of command center terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114598385A true CN114598385A (en) | 2022-06-07 |
Family
ID=81811975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011407540.3A Pending CN114598385A (en) | 2020-12-04 | 2020-12-04 | Method, device and system for hot standby of command center terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114598385A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8589953B1 (en) * | 2010-08-06 | 2013-11-19 | Open Invention Network, Llc | System and method for transparent consistent application-replication of multi-process multi-threaded applications |
| US20150193466A1 (en) * | 2014-01-06 | 2015-07-09 | Siegfried Luft | Architecture and method for cloud provider selection and projection |
| CN105208298A (en) * | 2015-10-28 | 2015-12-30 | 大连科迪视频技术有限公司 | Matrix switching system and matrix switching method for switching among multi-format video signals |
| CN106791554A (en) * | 2016-12-20 | 2017-05-31 | 广东电网有限责任公司电力调度控制中心 | A kind of Police Command Center audio-visual system Dual-Computer Hot-Standby System |
| CN206946437U (en) * | 2017-05-08 | 2018-01-30 | 广州美凯信息技术股份有限公司 | Optical fiber kvm system with active and standby hot turn function |
| CN208508938U (en) * | 2018-08-08 | 2019-02-15 | 北京威泰嘉业科技有限公司 | A kind of active redundancy(-ce) optical network backup system of embedded management function of attending a banquet |
| CN111547110A (en) * | 2020-05-19 | 2020-08-18 | 南京国电南自轨道交通工程有限公司 | Rail transit comprehensive monitoring system and switching method of main control center and standby control center thereof |
-
2020
- 2020-12-04 CN CN202011407540.3A patent/CN114598385A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8589953B1 (en) * | 2010-08-06 | 2013-11-19 | Open Invention Network, Llc | System and method for transparent consistent application-replication of multi-process multi-threaded applications |
| US20150193466A1 (en) * | 2014-01-06 | 2015-07-09 | Siegfried Luft | Architecture and method for cloud provider selection and projection |
| CN105208298A (en) * | 2015-10-28 | 2015-12-30 | 大连科迪视频技术有限公司 | Matrix switching system and matrix switching method for switching among multi-format video signals |
| CN106791554A (en) * | 2016-12-20 | 2017-05-31 | 广东电网有限责任公司电力调度控制中心 | A kind of Police Command Center audio-visual system Dual-Computer Hot-Standby System |
| CN206946437U (en) * | 2017-05-08 | 2018-01-30 | 广州美凯信息技术股份有限公司 | Optical fiber kvm system with active and standby hot turn function |
| CN208508938U (en) * | 2018-08-08 | 2019-02-15 | 北京威泰嘉业科技有限公司 | A kind of active redundancy(-ce) optical network backup system of embedded management function of attending a banquet |
| CN111547110A (en) * | 2020-05-19 | 2020-08-18 | 南京国电南自轨道交通工程有限公司 | Rail transit comprehensive monitoring system and switching method of main control center and standby control center thereof |
Non-Patent Citations (1)
| Title |
|---|
| 赵贺;魏元玲;孙凤茹;: "铁路局列车调度指挥中心容灾系统的设计与实现", 自动化与仪器仪表, no. 06 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016183967A1 (en) | Failure alarm method and apparatus for key component, and big data management system | |
| US20200204624A1 (en) | Data processing system, method and apparatus | |
| WO2021129885A1 (en) | Ip network-based audio/video transmission method and system | |
| CN111757128B (en) | Video coding system | |
| CN111240940B (en) | Real-time service monitoring method and device, electronic equipment and storage medium | |
| CN113923397B (en) | Conference room equipment state detection method and device, electronic equipment and storage medium | |
| CN105657450A (en) | Distributed video transcoding method | |
| CN109600619A (en) | A kind of time-sharing multiplexing method of decoding hardware | |
| CN112241437A (en) | Loop control method, device and equipment for multi-master synchronization of database and storage medium | |
| CN112181307A (en) | Block chain based distributed data redundancy storage method and electronic equipment | |
| JP2011128915A (en) | Log collection device and log collection method thereof, log collection system and log collection method thereof | |
| KR102595664B1 (en) | Image processing method, device, electronic equipment and readable storage medium | |
| CN114598385A (en) | Method, device and system for hot standby of command center terminal | |
| CN111614702B (en) | Edge calculation method and edge calculation system | |
| CN105573934B (en) | Method and device for operating multi-system slave device to access master device through USB connection | |
| CN218450552U (en) | Electric core network terminal based on 5G | |
| CN111770316A (en) | Audio and video encoder | |
| CN106033377B (en) | Data disaster tolerance method and Disaster Recovery Service | |
| CN116108109A (en) | Cascade data synchronization method, system, equipment and storage medium based on Canal | |
| CN113099271A (en) | Video auxiliary information encoding and decoding methods and electronic equipment | |
| CN111683140A (en) | Method and apparatus for distributing messages | |
| CN115642707B (en) | Distributed feeder network power distribution terminal logic unification method and power distribution terminal system | |
| CN217789680U (en) | Data transmission system | |
| CN110784746B (en) | Brain cognitive competence AI training system based on VR and electroencephalogram biofeedback technology | |
| CN112003683B (en) | Reliability control method and system based on unidirectional optical transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |