CN107124598B - Traffic information playing control method and playing controller - Google Patents
Traffic information playing control method and playing controller Download PDFInfo
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- CN107124598B CN107124598B CN201710266964.4A CN201710266964A CN107124598B CN 107124598 B CN107124598 B CN 107124598B CN 201710266964 A CN201710266964 A CN 201710266964A CN 107124598 B CN107124598 B CN 107124598B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
- H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
- H04N21/4425—Monitoring of client processing errors or hardware failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
Abstract
the embodiment of the invention provides a traffic information playing control method and a playing controller, wherein the playing controller acquires program data from a station server, when the playing controller determines that the running state of the playing controller is normal, the playing controller analyzes the program data and determines audio and video signals corresponding to the program data, then the audio and video signals corresponding to the program data are converted into optical signals and sent to a display terminal through an optical port, and after receiving the optical signals, the display terminal converts the optical signals into the audio and video signals and displays the audio and video signals on a display screen. In the embodiment of the invention, the conversion distribution equipment is integrated into the play controller, and the receiver is integrated into the display terminal, so that the play controller and the display terminal directly transmit signals through the optical fiber, and the traditional link of transmitting audio and video signals by adding the conversion distribution equipment and the receiver is omitted, thereby reducing fault points, and improving the stability of the system and the efficiency of troubleshooting the fault points.
Description
Technical Field
the embodiment of the invention relates to the technical field of passenger information release in rail transit, in particular to a traffic information playing control method and a traffic information playing controller.
background
passenger Information System (PIS) is a System for providing Information service to passengers by means of multimedia network technology, taking a computer System as a core and taking a station and a vehicle-mounted display terminal as media.
the running stability and safety of the passenger information system directly affect the trip experience and trip quality of passengers, and are also main reasons for service complaints of the passengers. At present, the mainstream rail transit passenger information system adopts a method of transmitting audio and video signals by optical fibers in a broadcasting control system of a station, so that conversion and distribution equipment for converting the audio and video signals into optical signals needs to be introduced at a transmitting end, and a receiver for converting the optical signals into the audio and video signals is configured at a receiving end. Because signals are transmitted from the transmitting end to the receiving end through each conversion distribution device and each receiver, each conversion distribution device and each receiver are possible fault points in the transmission process, signal transmission is influenced once the fault occurs, and in addition, because the fault points which are possible to occur are more, the fault points are difficult to locate in time when fault point troubleshooting is carried out.
Disclosure of Invention
The embodiment of the invention provides a traffic information playing control method and a playing controller, which are used for solving the problems of poor system stability and difficulty in troubleshooting of fault points caused by multiple fault points in the existing playing control system.
The embodiment of the invention provides a traffic information playing control method, which comprises the following steps:
the playing controller acquires program data from a station server;
When the play controller determines that the running state of the play controller is normal, analyzing the program data and determining an audio/video signal corresponding to the program data;
And the playing controller converts the audio and video signals corresponding to the program data into optical signals and sends the optical signals to the display terminal through the optical port, so that the optical signals are converted into the audio and video signals by the display terminal and then displayed on a display screen.
optionally, when the play controller determines that the running state of the play controller is normal, before analyzing the program data and determining the audio/video signal corresponding to the program data, the method further includes:
the playing controller acquires redundant heartbeat data from the station server through a network port, wherein the redundant heartbeat data is determined by detecting the connection state of the playing controller and the station server;
the play controller determines whether the running state of the play controller is normal or not according to the redundant heartbeat data;
optionally, the play controller includes a switching control unit, a signal conversion and distribution unit, and an audio/video signal main unit;
the method further comprises the following steps:
when the play controller determines that the running state of the play controller is abnormal, the switching control unit receives a switching instruction sent by the station server, wherein the switching instruction is generated after the station server processes the abnormal information;
the switching control unit switches the main input signal of the signal conversion distribution unit into an annular input signal according to the switching instruction, the main input signal of the signal conversion distribution unit is an audio and video signal input from the audio and video signal main unit, and the annular input signal is an audio and video signal input from the backup playing controller.
optionally, the play controller includes a play logic unit, an audio/video signal main unit, and a signal conversion and distribution unit;
The playing controller analyzes the program data and determines the audio and video signals corresponding to the program data, and the method comprises the following steps:
the playing logic unit analyzes the acquired program data and sends the analyzed program data to the audio and video signal main unit;
The audio/video signal main unit processes the analyzed program data and determines an audio/video signal corresponding to the program data;
and the audio and video signal main unit sends the audio and video signals corresponding to the program data to the signal conversion and distribution unit.
Optionally, the play controller includes a state monitoring logic unit and a signal conversion and distribution unit;
The playing controller converts the audio and video signals corresponding to the program data into optical signals and sends the optical signals to the display terminal through the optical port, and the playing controller further comprises:
The state monitoring logic unit sends a display screen state query instruction to the signal conversion and distribution unit;
The signal conversion and distribution unit converts the display screen state query instruction into an optical signal and then sends the optical signal to the display terminal through the optical port;
the state monitoring logic unit receives state information fed back by a display terminal and sends the fed back state information to a system management workstation, wherein the system management workstation comprises a central system management workstation and a station system management workstation;
the state monitoring logic unit receives a state control instruction sent by the system management workstation, wherein the state control instruction is determined by the system management workstation according to the feedback state information;
And the state monitoring logic unit sends the state control instruction to the display terminal through the signal conversion and distribution unit.
accordingly, an embodiment of the present invention further provides a play controller, including:
The acquisition module is used for acquiring program data from a station server;
the processing module is used for analyzing the program data and determining audio and video signals corresponding to the program data when the operating state of the processing module is determined to be normal; and converting the audio and video signals corresponding to the program data into optical signals and sending the optical signals to a display terminal through an optical port, so that the optical signals are converted into the audio and video signals by the display terminal and then displayed on a display screen.
optionally, the processing module is further configured to:
When the running state of the station server is determined to be normal, analyzing the program data and obtaining redundant heartbeat data from the station server through a network port before determining the audio/video signal corresponding to the program data, wherein the redundant heartbeat data is determined by detecting the connection state of the station server and the station server;
and determining whether the running state of the user is normal or not according to the redundant heartbeat data.
Optionally, the processing module includes a switching control unit, a signal conversion and distribution unit, and an audio/video signal main unit;
The processing module is further configured to:
When the running state of the station server is determined to be abnormal, receiving a switching instruction sent by the station server through the switching control unit, wherein the switching instruction is determined after the station server processes the abnormal information;
and switching the main input signal of the signal conversion distribution unit into an annular input signal through the switching control unit according to the switching instruction, wherein the main input signal of the signal conversion distribution unit is an audio/video signal input from the audio/video signal main unit, and the annular input signal is an audio/video signal input from the backup play controller.
optionally, the processing module includes a play logic unit, an audio/video signal main unit, and a signal conversion and distribution unit;
the processing module is specifically configured to:
analyzing the acquired program data through the playing logic unit, processing the analyzed program data through the audio/video signal main unit and determining an audio/video signal corresponding to the program data; and sending the audio and video signals corresponding to the program data to the signal conversion and distribution unit through the audio and video signal main unit.
optionally, the processing module includes a state monitoring logic unit and a signal conversion and distribution unit;
the processing module is further configured to:
after audio and video signals corresponding to the program data are converted into optical signals and are sent to a display terminal through an optical port, the state monitoring logic unit sends a display screen state query instruction to the signal conversion and distribution unit;
The display screen state query instruction is converted into an optical signal through the signal conversion and distribution unit and then is sent to the display terminal through the optical port;
receiving state information fed back by a display terminal through the state monitoring logic unit and sending the fed back state information to a system management workstation, wherein the system management workstation comprises a central system management workstation and a station system management workstation;
receiving a state control instruction sent by the system management workstation through the state monitoring logic unit, wherein the state control instruction is determined by the system management workstation according to the feedback state information; and sending the state control instruction to the display terminal through the signal conversion and distribution unit.
The embodiment of the invention shows that the playing controller acquires program data from a station server. When the playing controller determines that the running state of the playing controller is normal, the playing controller analyzes the program data and determines the audio and video signals corresponding to the program data, then converts the audio and video signals corresponding to the program data into optical signals and sends the optical signals to the display terminal through the optical port, and after receiving the optical signals, the display terminal converts the optical signals into the audio and video signals and displays the audio and video signals on the display screen. In the embodiment of the invention, the conversion distribution equipment is integrated into the play controller, and the receiver is integrated into the display terminal, so that the play controller can directly convert the audio/video signals corresponding to the program data into optical signals and send the optical signals to the display terminal through the optical port, the display terminal can also convert the optical signals into the audio/video signals and display the audio/video signals after receiving the optical signals through the optical port, the signals are directly transmitted between the play controller and the display terminal through optical fibers, and the traditional link of transmitting the audio/video signals by adding the conversion distribution equipment and the receiver is omitted, thereby reducing fault points and improving the stability of the play control system and the efficiency of troubleshooting.
Drawings
in order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
fig. 1 is a schematic diagram of a track transportation passenger information system according to an embodiment of the present invention;
Fig. 2 is a schematic flow chart illustrating a traffic information playing control method according to an embodiment of the present invention;
Fig. 3 is an architecture diagram of a traffic information playing control method according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a broadcast control redundancy control method according to an embodiment of the present invention;
fig. 5 is a schematic flowchart of a method for monitoring a status of a display screen according to an embodiment of the present invention;
fig. 6 is a diagram of a broadcast control system architecture according to an embodiment of the present invention;
Fig. 7 is a schematic structural diagram of a play controller according to an embodiment of the present invention.
Detailed Description
in order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solution of the embodiment of the present invention is applicable to a broadcast control system in a track traffic passenger information system, and fig. 1 exemplarily shows a schematic diagram of an architecture of a track traffic passenger information system applicable to the embodiment of the present invention, and as shown in fig. 1, the architecture of the track traffic passenger information system includes two stages, a first stage is a central passenger information system 101, and a second stage is a station passenger information system 102. The center passenger information system 101 includes, among other things, a center system management workstation 1011, a center release management workstation 1012, a center server 1013, and a center switch 1014. The station passenger information system 102 includes a station switch 1021, a station system management work station 1022, a station server 1023, and a broadcast control system 1024, wherein the broadcast control system includes a broadcast controller and a display terminal. The functions of the devices of the rail transit passenger information system are described in detail below, as shown in table 1:
TABLE 1
Based on the above description, fig. 2 exemplarily shows a flow of a traffic information playing control method provided by an embodiment of the present invention, and as shown in fig. 2, the specific steps of the flow include:
Step S201, the station server sends program data to the broadcast controller.
Step S202, when the play controller determines that the running state of the play controller is normal, the play controller analyzes the program data and determines the audio/video signal corresponding to the program data.
In step S203, the play controller converts the audio/video signal corresponding to the program data into an optical signal.
Step S204, the playing controller sends the optical signal to the display terminal through the optical port.
and step S205, the display terminal converts the optical signal into an audio/video signal and displays the audio/video signal on a display screen.
In specific implementation, the playing controller acquires redundant heartbeat data from the station server through the internet access, and then determines whether the running state of the playing controller is normal or not according to the redundant heartbeat data, wherein the redundant heartbeat data is determined by detecting the connection state of the playing controller and the station server. In the embodiment of the invention, the conversion distribution equipment is integrated into the play controller, and the receiver is integrated into the display terminal, so that the play controller can directly convert the audio/video signals corresponding to the program data into optical signals and send the optical signals to the display terminal through the optical port, the display terminal can also convert the optical signals into the audio/video signals and display the audio/video signals after receiving the optical signals through the optical port, the signals are directly transmitted between the play controller and the display terminal through optical fibers, and the traditional link of transmitting the audio/video signals by adding the conversion distribution equipment and the receiver is omitted, thereby reducing fault points and improving the stability of the play control system and the efficiency of troubleshooting.
fig. 3 is an architecture diagram of a traffic information playing control method according to an embodiment of the present invention, and the steps in fig. 2 are specifically described below with reference to fig. 3.
in the embodiment of the present invention, as shown in fig. 3, the play controller includes a signal control module and a play main control module, where the signal control module includes a signal conversion and distribution unit and an optical port, and the play main control module includes a play logic unit and an audio/video signal main unit. In step S201, the broadcast controller receives program data transmitted from the station server through the broadcast logic unit. In steps S202 to S204, the play controller analyzes the received program data through the play logic unit and sends the analyzed program data to the audio/video signal main unit, then the audio/video signal main unit processes the analyzed program data and determines an audio/video signal corresponding to the program data, and finally the audio/video signal main unit sends the audio/video signal corresponding to the program data to the signal conversion and distribution unit, and the signal conversion and distribution unit converts the audio/video signal into an optical signal and sends the optical signal to the display terminal through the optical port. In step S205, the display terminal receives the optical signal through the optical port, converts the optical signal into an audio/video signal through the signal conversion and distribution unit, and displays the audio/video signal on the display screen. Because the conversion distribution equipment is integrated into the signal conversion distribution unit in the play controller and the receiver is integrated into the signal conversion unit in the display terminal, on one hand, the fault points are reduced, the stability of the system is improved, and on the other hand, the conversion distribution equipment is prevented from accessing other illegal play control sources.
In the embodiment of the present invention, in order to improve the reliability of the broadcast control system, when the broadcast controller determines that its own operating state is abnormal, the broadcast control redundant control function is started, specifically implemented by the cooperation of the broadcast logic unit in the broadcast controller, the switching control unit in the broadcast controller, and the station server, which includes the following steps, as shown in fig. 4:
Step S401, the playing logic unit monitors the heartbeat data between itself and the station server through the internet access.
step S402, when the playing logic unit monitors that the heartbeat data is abnormal, the abnormal information of the abnormal running state is sent to the station server.
In step S403, the station server processes the abnormal information to determine a switching instruction.
In step S404, the station server sends a switching command to the switching control unit.
In step S405, the switching control unit switches the main input signal of the signal conversion and distribution unit into the loop-in signal according to the switching instruction.
in the above embodiment, the monitoring of the abnormal state of the playing logic unit further includes another condition that when the heartbeat between the playing logic unit and the station server is lost, for example, when a program is suspended or a system is halted, the playing controller cannot receive heartbeat data, and at this time, the station server directly determines that the running state of the playing logic unit is abnormal and sends a switching instruction to the switching control unit. In specific implementation, the main input signal of the signal conversion and distribution unit is an audio/video signal input from the audio/video signal main unit, and the loop-in signal is an audio/video signal input from the backup play controller. The backup playing controller can be connected with the playing controller through a ring-in Interface and a ring-out Interface, the ring-in Interface and the ring-out Interface can be used for inputting and outputting audio and Video signals, and the physical forms of the supported audio and Video signals comprise a High Definition Multimedia Interface (HDMI), a Video Graphics Array (VGA) and a Digital Video Interface (DVI). The embodiment of the invention realizes the broadcast control redundancy control function through the ring-in ring-out interface without introducing matrix control signal switching, thereby improving the reliability of the system.
In the embodiment of the present invention, after the playing controller converts the audio/video signal corresponding to the program data into the optical signal and sends the optical signal to the display terminal through the optical port, the state of the display screen needs to be monitored, specifically implemented by matching a state monitoring logic unit in the playing controller, a system management workstation, and the display terminal, which includes the following steps, as shown in fig. 5:
step S501, a state monitoring logic unit converts a display screen state query instruction into an optical signal through a signal conversion and distribution unit and then sends the optical signal to a display terminal through an optical port;
and step S502, the display terminal inquires the state of the display screen according to the inquiry instruction.
step S503, the display terminal feeds back the state information to the state monitoring logic unit.
In step S54, the status monitoring logic unit sends the feedback status information to the system management workstation.
and step S505, the system management workstation determines a state control instruction according to the feedback state information.
step S506, the system management workstation sends the state control instruction to the state monitoring logic unit.
And step S507, the state monitoring logic unit sends the state control instruction to the display terminal through the signal conversion and distribution unit.
and step S508, the display terminal adjusts the state of the display screen according to the state control instruction.
in specific implementation, the system management workstation comprises a central system management workstation and a station system management workstation. When monitoring the state of the display screen, the display screen state query instruction may be sent to the display terminal together with the audio and video signal after the signal conversion and distribution unit converts the audio and video signal into the optical signal to perform the display screen state monitoring, or may be sent to the display terminal at set intervals to perform the display screen state monitoring, which is not limited in the present invention. The display screen state query instruction and the state control instruction can be converted into optical signals and then transmitted through optical fibers, and the optical signals and the audio and video signals can be transmitted through the same optical fibers, so that construction wiring is simplified, and engineering cost is reduced.
For better explaining the embodiments of the present invention, a broadcast control system of a station is set as shown in fig. 6, where the broadcast control system of the station includes a broadcast controller, a backup broadcast controller, a station server, a system management workstation, and a display terminal, the broadcast controller includes a network port, a signal control module, and a broadcast main control module, and further, the signal control module includes a switching control unit, a signal conversion and distribution unit, a loop-in interface, and an optical port, and the broadcast main control module includes a broadcast logic unit, an audio/video signal main unit, and a status monitoring logic unit. The display terminal comprises an optical port, a signal conversion unit and a display screen. In specific implementation, the playing logic unit in the playing controller establishes heartbeat and abnormal state monitoring with a redundant switching control service program on a slave station server through a network port, and determines whether the running state of the playing logic unit is normal or not by monitoring heartbeat data in real time.
Specifically, when the running state of the play logic unit is normal, the play logic unit acquires program data from the station server through the internet access, analyzes the received program data, and sends the analyzed program data to the audio/video signal main unit. The audio and video signal main unit processes the analyzed program data and determines audio and video signals corresponding to the program data, then the audio and video signals corresponding to the program data are sent to the signal conversion distribution unit, the signal conversion distribution unit converts the audio and video signals into optical signals, and the optical signals are sent to the display terminal through the optical port. The display terminal receives the optical signal through the optical port, converts the optical signal into an audio/video signal through the signal conversion unit and displays the audio/video signal on the display screen.
and when the running state of the playing logic unit is abnormal, the station server processes the abnormal information to determine a switching instruction and sends the switching instruction to the switching control unit. The switching control unit switches the main input signal of the signal conversion distribution unit into an insertion signal according to a switching instruction, the main input signal of the signal conversion distribution unit is an audio/video signal input from the audio/video signal main unit, and the insertion signal is an audio/video signal input by the backup play controller through an insertion interface. The signal conversion and distribution unit converts the incoming signal into an optical signal and sends the optical signal to the display terminal through the optical port. The display terminal receives the optical signal through the optical port, converts the optical signal into an audio/video signal through the signal conversion unit and displays the audio/video signal on the display terminal.
When the playing system analyzes and displays the program data, the state monitoring logic unit in the playing controller sends a display screen state query instruction to the signal conversion distribution unit at regular time. And the signal conversion and distribution unit converts the display screen state query instruction into an optical signal and then sends the optical signal to the display terminal through the optical port. And the display terminal inquires the state of the display screen according to the inquiry instruction and feeds back the state information to the state monitoring logic unit through the optical port. And the state monitoring logic unit sends the feedback state information to a system management workstation. And the system management workstation determines a state control instruction according to the feedback state information and sends the state control instruction to the state monitoring logic unit. And the state monitoring logic unit sends the state control instruction to the display terminal through the signal conversion and distribution unit and the optical port. And the display terminal adjusts the state of the display screen according to the state control instruction.
The embodiment of the invention shows that the playing controller acquires program data from a station server. When the playing controller determines that the running state of the playing controller is normal, the playing controller analyzes the program data and determines the audio and video signals corresponding to the program data, then converts the audio and video signals corresponding to the program data into optical signals and sends the optical signals to the display terminal through the optical port, and after receiving the optical signals, the display terminal converts the optical signals into the audio and video signals and displays the audio and video signals on the display screen. In the embodiment of the invention, the conversion distribution equipment is integrated into the play controller, and the receiver is integrated into the display terminal, so that the play controller can directly convert the audio/video signals corresponding to the program data into optical signals and send the optical signals to the display terminal through the optical port, the display terminal can also convert the optical signals into the audio/video signals and display the audio/video signals after receiving the optical signals through the optical port, the signals are directly transmitted between the play controller and the display terminal through optical fibers, and the traditional link of transmitting the audio/video signals by adding the conversion distribution equipment and the receiver is omitted, thereby reducing fault points and improving the stability of the play control system and the efficiency of troubleshooting.
based on the same technical concept, fig. 7 exemplarily shows a structure of a play controller provided by an embodiment of the present invention, and the apparatus can execute a flow of a traffic information play control method.
As shown in fig. 7, the play controller includes:
An obtaining module 701, configured to obtain program data from a station server;
The processing module 702 is configured to, when determining that the running state of the processing module is normal, analyze the program data and determine an audio/video signal corresponding to the program data; and converting the audio and video signals corresponding to the program data into optical signals and sending the optical signals to a display terminal through an optical port, so that the optical signals are converted into the audio and video signals by the display terminal and then displayed on a display screen.
Optionally, the processing module 702 is further configured to:
when the running state of the station server is determined to be normal, analyzing the program data and obtaining redundant heartbeat data from the station server through a network port before determining the audio/video signal corresponding to the program data, wherein the redundant heartbeat data is determined by detecting the connection state of the station server and the station server;
and determining whether the running state of the user is normal or not according to the redundant heartbeat data.
Optionally, the processing module 702 includes a switching control unit 7021, a signal conversion distribution unit 7022, and an audio/video signal main unit 7023;
the processing module 702 is further configured to:
when determining that the running state of the station is abnormal, receiving a switching instruction sent by the station server through the switching control unit 7021, where the switching instruction is determined after the station server processes the abnormal information;
The switching control unit 7021 switches the main input signal of the signal conversion distribution unit 7022 into an ingress signal according to the switching instruction, the main input signal of the signal conversion distribution unit 7022 is an audio/video signal input from the audio/video signal main unit 7023, and the ingress signal is an audio/video signal input from the backup play controller.
Optionally, the processing module 702 includes a play logic unit 7024, an audio/video signal main unit 7023, and a signal conversion distribution unit 7022;
the processing module 702 is specifically configured to:
The obtained program data is analyzed through the playing logic unit 7024, the analyzed program data is processed through the audio/video signal main unit 7023, and an audio/video signal corresponding to the program data is determined; and the audio and video signals corresponding to the program data are sent to the signal conversion distribution unit 7022 through the audio and video signal main unit 7023.
Optionally, the processing module 702 includes a state monitoring logic unit 7025 and a signal conversion distribution unit 7022;
the processing module 702 is further configured to:
After converting the audio/video signals corresponding to the program data into optical signals and sending the optical signals to the display terminal through the optical port, the state monitoring logic unit 7025 sends a display screen state query instruction to the signal conversion and distribution unit 7022;
the signal conversion and distribution unit 7022 converts the display screen state query instruction into an optical signal and sends the optical signal to the display terminal through the optical port;
Receiving state information fed back by a display terminal through the state monitoring logic unit 7025 and sending the fed back state information to a system management workstation, wherein the system management workstation comprises a central system management workstation and a station system management workstation;
Receiving, by the state monitoring logic unit 7025, a state control instruction sent by the system management workstation, where the state control instruction is determined by the system management workstation according to the feedback state information; and sends the state control instruction to the display terminal through the signal conversion distribution unit 7022.
It should be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
these computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
these computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. a traffic information playing control method is characterized by comprising the following steps:
The playing controller acquires program data from a station server;
when the play controller determines that the running state of the play controller is normal, analyzing the program data and determining an audio/video signal corresponding to the program data;
the playing controller converts the audio and video signals corresponding to the program data into optical signals and sends the optical signals to a display terminal through an optical port, so that the display terminal converts the optical signals into the audio and video signals and then displays the audio and video signals on a display screen;
the playing controller comprises a switching control unit, a signal conversion and distribution unit and an audio and video signal main unit; when the play controller determines that the running state of the play controller is abnormal, the switching control unit receives a switching instruction sent by the station server, wherein the switching instruction is generated after the station server processes abnormal information; the switching control unit switches the main input signal of the signal conversion distribution unit into an annular input signal according to the switching instruction, the main input signal of the signal conversion distribution unit is an audio and video signal input from the audio and video signal main unit, and the annular input signal is an audio and video signal input from the backup playing controller.
2. the method of claim 1, wherein before the play controller determines that the running state of the play controller is normal, analyzing the program data and determining the audio/video signal corresponding to the program data, the method further comprises:
the playing controller acquires redundant heartbeat data from the station server through a network port, wherein the redundant heartbeat data is determined by detecting the connection state of the playing controller and the station server;
And the play controller determines whether the running state of the play controller is normal or not according to the redundant heartbeat data.
3. the method of claim 1, wherein the playback controller comprises a playback logic unit;
the playing controller analyzes the program data and determines the audio and video signals corresponding to the program data, and the method comprises the following steps:
The playing logic unit analyzes the acquired program data and sends the analyzed program data to the audio and video signal main unit;
the audio/video signal main unit processes the analyzed program data and determines an audio/video signal corresponding to the program data;
And the audio and video signal main unit sends the audio and video signals corresponding to the program data to the signal conversion and distribution unit.
4. the method of claim 1, wherein the playback controller includes a status monitor logic unit;
the playing controller converts the audio and video signals corresponding to the program data into optical signals and sends the optical signals to the display terminal through the optical port, and the playing controller further comprises:
the state monitoring logic unit sends a display screen state query instruction to the signal conversion and distribution unit;
The signal conversion and distribution unit converts the display screen state query instruction into an optical signal and then sends the optical signal to the display terminal through the optical port;
the state monitoring logic unit receives state information fed back by a display terminal and sends the fed back state information to a system management workstation, wherein the system management workstation comprises a central system management workstation and a station system management workstation;
The state monitoring logic unit receives a state control instruction sent by the system management workstation, wherein the state control instruction is determined by the system management workstation according to the feedback state information;
And the state monitoring logic unit sends the state control instruction to the display terminal through the signal conversion and distribution unit.
5. A playback controller, comprising:
the acquisition module is used for acquiring program data from a station server;
the processing module is used for analyzing the program data and determining audio and video signals corresponding to the program data when the operating state of the processing module is determined to be normal; converting the audio and video signals corresponding to the program data into optical signals and sending the optical signals to a display terminal through an optical port so that the optical signals are converted into the audio and video signals by the display terminal and then displayed on a display screen;
the processing module comprises a playing logic unit, an audio and video signal main unit and a signal conversion and distribution unit;
The processing module is specifically configured to:
when the running state of the station server is determined to be abnormal, receiving a switching instruction sent by the station server through the switching control unit, wherein the switching instruction is determined after the station server processes the abnormal information;
and switching the main input signal of the signal conversion distribution unit into an annular input signal through the switching control unit according to the switching instruction, wherein the main input signal of the signal conversion distribution unit is an audio/video signal input from the audio/video signal main unit, and the annular input signal is an audio/video signal input from the backup play controller.
6. The playback controller of claim 5, wherein the processing module is further configured to:
when the running state of the station server is determined to be normal, analyzing the program data and obtaining redundant heartbeat data from the station server through a network port before determining the audio/video signal corresponding to the program data, wherein the redundant heartbeat data is determined by detecting the connection state of the station server and the station server;
And determining whether the running state of the user is normal or not according to the redundant heartbeat data.
7. the playback controller of claim 5, wherein the processing module includes playback logic;
the processing module is specifically configured to:
Analyzing the acquired program data through the playing logic unit, processing the analyzed program data through the audio/video signal main unit and determining an audio/video signal corresponding to the program data; and sending the audio and video signals corresponding to the program data to the signal conversion and distribution unit through the audio and video signal main unit.
8. the playback controller of claim 5, wherein the processing module includes a status monitoring logic unit;
The processing module is further configured to:
after audio and video signals corresponding to the program data are converted into optical signals and are sent to a display terminal through an optical port, the state monitoring logic unit sends a display screen state query instruction to the signal conversion and distribution unit;
The display screen state query instruction is converted into an optical signal through the signal conversion and distribution unit and then is sent to the display terminal through the optical port;
receiving state information fed back by a display terminal through the state monitoring logic unit and sending the fed back state information to a system management workstation, wherein the system management workstation comprises a central system management workstation and a station system management workstation;
receiving a state control instruction sent by the system management workstation through the state monitoring logic unit, wherein the state control instruction is determined by the system management workstation according to the feedback state information; and sending the state control instruction to the display terminal through the signal conversion and distribution unit.
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| CN110769307A (en) * | 2018-07-27 | 2020-02-07 | 比亚迪股份有限公司 | Playing control method and device and playing controller |
| CN108962100A (en) * | 2018-08-16 | 2018-12-07 | 上海视尚电子科技有限公司 | A kind of subway platform wisdom label multi-media display system |
| CN111526114A (en) * | 2019-04-04 | 2020-08-11 | 重庆点控科技有限公司 | Multi-mode control broadcast control system |
| CN113556592A (en) * | 2020-04-24 | 2021-10-26 | 深圳市中兴系统集成技术有限公司 | Method for realizing bidirectional control display terminal of play control system |
| CN112383806A (en) * | 2020-11-11 | 2021-02-19 | 青岛海信网络科技股份有限公司 | Public transport station information playing device, method, device and storage medium |
| CN114727148A (en) * | 2022-04-18 | 2022-07-08 | 中国第一汽车股份有限公司 | Audio and video interaction method, device and equipment applied to vehicle and storage medium |
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