CN113602319A - Vehicle-mounted passenger information display system applied to rail transit environment - Google Patents
Vehicle-mounted passenger information display system applied to rail transit environment Download PDFInfo
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- CN113602319A CN113602319A CN202111067760.0A CN202111067760A CN113602319A CN 113602319 A CN113602319 A CN 113602319A CN 202111067760 A CN202111067760 A CN 202111067760A CN 113602319 A CN113602319 A CN 113602319A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
- B61L15/009—On-board display devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
- B61L15/0018—Communication with or on the vehicle or vehicle train
- B61L15/0027—Radio-based, e.g. using GSM-R
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
- B61L15/0045—Destination indicators, identification panels or distinguishing signs on the vehicles
Abstract
The utility model provides a be applied to on-vehicle passenger information display system of track traffic environment, respectively arrange a control host computer in head, two driver's rooms in the tail, all install a dynamic electronic map display screen above all doors of each guest room, still all install the multi-media display more than two in each guest room, a cross passageway display screen and a giga switch, the dynamic electronic map display screen in each guest room, multi-media display and cross the passageway display screen and all connect the communication through the net twine rather than the giga switch in the guest room of place, the giga switch of each guest room and the control host computer of head, two driver's rooms in the tail all insert in the ring net. The invention discloses a vehicle-mounted passenger information display system applied to a rail transit environment, which adds an in-station navigation function into an LCD dynamic electronic map display screen, so that passengers can know the positions of an elevator at a station, the position of a departure gate and the like in a carriage.
Description
Technical Field
The invention belongs to the field of rail transit, and particularly relates to a vehicle-mounted passenger information display system applied to a rail transit environment in the field, which has the functions of train station display, multimedia information playing and the like.
Background
With the rapid development of the rail transit industry, how to improve the service quality becomes the key point of development, the concept taking a vehicle as a main consideration object is changing to the concept taking passengers as a main consideration object, and the service which is the most intuitive and experienced by the passengers is the vehicle-mounted passenger information display system. At present, an LCD carcass electronic map is arranged above the train door to display station information, a part of trains are also provided with LED lamps to display station information, and each carriage is provided with an LCD display to play multimedia information.
The electronic map screen in the existing passenger information display system is only a simple presentation site name, and no identification is provided for the carriage position, most multimedia displays only play local videos, and the problems of video blockage and unsynchronization of different carriage pictures may occur in the playing process.
Disclosure of Invention
The invention aims to provide a vehicle-mounted passenger information display system applied to a rail transit environment.
The invention adopts the following technical scheme:
an on-board passenger information display system for use in a rail transit environment, the improvement comprising: the control host is respectively arranged in the head cab and the tail cab, a dynamic electronic map display screen is respectively arranged above all doors of each passenger room, more than two multimedia displays, a channel passing display screen and a kilomega switch are also respectively arranged in each passenger room, the dynamic electronic map display screen, the multimedia displays and the channel passing display screen in each passenger room are respectively connected and communicated with the kilomega switch in the passenger room in which the dynamic electronic map display screen, the multimedia displays and the channel passing display screen are arranged through network cables, and the kilomega switch of each passenger room and the control host of the head cab and the tail cab are respectively connected into the ring network.
Furthermore, the head control host and the tail control host adopt a hot backup mechanism, and when the activation end control host fails, the other end control host replaces the operation of the activation end control host.
Furthermore, the dynamic electronic map display screen is an LCD screen, the display information comprises subway station information, next station information, upcoming station reminding, text and picture propaganda, time display, door opening side indication, current carriage position, carriage crowding degree and in-station navigation, and the dynamic electronic map display screen also receives and displays messages sent by other systems of the train through a UDP data transmission protocol.
Furthermore, an independent vehicle-mounted multimedia information playing system is configured in each passenger room, a hard disk is arranged in the vehicle-mounted multimedia information playing system, multimedia information is played through a multimedia display of the passenger room where the vehicle-mounted multimedia information playing system is located, the vehicle-mounted multimedia information playing system preferentially receives the multimedia information issued by the control center OCC from the ground PIS through a vehicle-ground wireless network and plays the multimedia information in real time, and the multimedia information stored in the hard disk is played independently when necessary.
Further, 3 processes are deployed in the control host: a Broker process, a TcmsAdapter process and a DisService process; 2 processes are deployed in a vehicle-mounted multimedia information playing system: a DisService process and a streamService process.
Furthermore, the multimedia display is an LCD display screen, and can automatically diagnose the problems of uneven backlight, black screen, white screen, broken screen and screen skipping and report.
Furthermore, the multimedia display supports a multi-window split-screen playing mode, the content comprises video, pictures, texts and accompanying sounds, each area is independently controlled, and an independent playing list is provided.
Further, the multimedia display displays in four windows in a split screen manner: windows above the screen are logo and terminal station information of a subway company; the left window in the middle of the screen is weather condition and next station information, and the largest window in the middle of the screen is a video playing area and is used for playing live broadcast information from the ground or local pre-recorded video information; the window below the screen is an emergency and prompt information playing area.
Furthermore, a terminal LED display screen is respectively arranged behind the train head monitoring glass of the head cab and the tail cab to display the terminal information of the train operation, the terminal information is controlled by a cab key, and the head cab and the tail cab are all displayed after a driver opens the key.
Furthermore, two paths of network cables are led out from the gigabit switch of each passenger room and are respectively connected to the equipment on two sides of the passenger room, and each equipment has a Bypass function.
The invention has the beneficial effects that:
the invention discloses a vehicle-mounted passenger information display system applied to a rail transit environment, which adds an in-station navigation function into an LCD dynamic electronic map display screen, so that passengers can know the positions of an elevator at a station, the position of a departure gate and the like in a carriage. A function of displaying the degree of congestion of the carriage is added to the LCD dynamic electronic map display screen, the number of passengers in the carriage can be acquired from a passenger counting system, and the degree of congestion of each carriage is displayed in 5 levels. For multimedia video playing, the invention can make the live video of each multimedia display synchronous, clear and free from pause phenomenon by using the vehicle-ground wireless network, based on UDP data transmission protocol and processing the video stream. The fault self-diagnosis and reporting technology of the LCD display screen can automatically diagnose the problems of uneven backlight, black screen, white screen, broken screen and screen jumping of the LCD screen and report the problems in time, so that a user can find the problems in time and maintain the problems conveniently, and the reliability of the passenger information display system disclosed by the invention is greatly improved. Can be applied to high-speed rail, tram and other similar application occasions.
Drawings
Fig. 1 is a schematic composition diagram of a vehicle-mounted passenger information display system disclosed in embodiment 1 of the present invention;
FIG. 2 is a system process interaction diagram;
FIG. 3 is a schematic diagram of hot standby redundancy;
fig. 4 is a schematic diagram of centralized maintenance.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Embodiment 1, as shown in fig. 1, this embodiment discloses a vehicle-mounted passenger information display system applied to a rail transit environment, a control host is respectively arranged in a head cab and a tail cab, a dynamic electronic map display screen is respectively installed above all doors of each passenger room, four multimedia displays, a channel-passing display screen and a gigabit switch are also respectively installed in each passenger room, the dynamic electronic map display screen, the multimedia display and the channel-passing display screen in each passenger room are all connected and communicated with the gigabit switch in the passenger room where the dynamic electronic map display screen, the multimedia display and the channel-passing display screen are all located through network cables, and the gigabit switch in each passenger room and the control hosts of the head cab and the tail cab are all connected into a ring network.
In this embodiment, the head and tail control hosts adopt a hot backup mechanism, and when the activation end control host fails, the other end control host replaces the operation of the activation end control host. Even if one of the control hosts fails, the effect of the whole display system is not affected.
Two paths of network cables are led out from the gigabit switch of each passenger room and are respectively connected to the equipment (comprising a multimedia display, a dynamic electronic map display screen and other equipment) on two sides of the passenger room, and even if a line on one side fails, the other side cannot be influenced.
Each device has a Bypass function, and normal operation of other cascade devices cannot be influenced when a single device fails.
The system is communicated with each device through the kilomega switch, and ring network redundancy is established among the kilomega switches to bypass single-point faults. All the devices are hung on the ring network and can access each other. All equipment is accessed to the gigabit switch through six types and more of network cables, and the condition that the IP of the equipment is not repeated and is in one network segment is ensured.
LCD dynamic electronic map displays are provided above each door zone of each passenger compartment to display rich information, including but not limited to: subway station information, next station information, upcoming station reminding, text and picture propaganda, time display, door opening side indication, current carriage position, carriage crowding degree, in-station navigation and the like. The LCD dynamic electronic map display screen also receives messages sent by other systems of the train through a UDP data transmission protocol and displays different information pictures under the control of internal logic.
Independent vehicle-mounted multimedia information playing systems are arranged in each passenger room to provide multimedia information services for passengers. The system can preferentially receive the multimedia information issued by a control center (OCC) from the ground PIS through the vehicle-ground wireless network and play the multimedia information in real time, and can also independently play the multimedia information stored by the vehicle through the vehicle-on-vehicle network.
An LCD controller is integrated in a host of the vehicle-mounted multimedia information playing system, a 128G solid state disk is arranged in the controller and used for storing locally played media files, the media files can be continuously played for 72 hours, and the playing capacity requirement of one day is greatly met. Coding is carried out in a 2M code stream and H.264 compression format, 72-hour videos are stored, and the calculation formula is as follows:
(2Mbps×3600sec÷8bits)×72hrs÷1024MB≈63.3GB
the multimedia display is an LCD display screen, and the LCD display screen can automatically diagnose the problems of uneven backlight, black screen, white screen, broken screen and screen skipping of the LCD screen and report the problems in time.
The LCD display screen supports the Ethernet Bypass function, and when the series connection between the equipment is met, the fault conduction effect is supported, and the single-point fault is prevented.
Under the condition of no live broadcast information, the cab control host (PCU) can distribute a play list and pre-stored video information provided by the ground PIS vehicle-mounted server to each passenger room control host through a train network. The system has a timeout protection function, and when no signal is received for 10 minutes (time adjustable), the LCD display screen can automatically play the designated content in a full screen mode.
In addition, the system also supports a multi-window split-screen playing mode, the content comprises video, pictures, texts and accompanying sounds, each area is independently controlled, and an independent playing list is provided. The display parameters such as volume, brightness, contrast, etc. can be set by a software program. The LCD display screen is displayed in four windows in a split screen mode: windows above the screen are logo and terminal station information of a subway company; the left window in the middle of the screen is weather condition and next station information, and the largest window in the middle of the screen is a video playing area and is mainly used for playing live broadcast information from the ground or locally pre-recorded video information; the window below the screen is a playing area for emergency and prompt information and the like. The LCD display screen template can be changed through software, and the editing interface has good visualization.
The train head monitoring glass of the head and tail cabs is respectively provided with a terminal LED display screen which mainly displays the terminal information of the train operation and is controlled by a cab key, and the head and tail cabs display the terminal information after the driver opens the key. The specific information content comprises: displaying by adopting Chinese and English languages; one line can display at least 7 Chinese characters and can be scrolled; displaying the names of the finished stations, wherein all stations on the line can become destinations; the train signal or the driver sets the train; the displayed contents can be seen clearly at different angles within 30 meters in front of the train and within 10 meters on both sides of the train in consideration of the influence of the train entering speed, the screen door and the like on the visibility.
The train terminal information is from a Train Control and Management System (TCMS), and is automatically displayed when the system receives the terminal information from the TCMS.
Each passenger room is also provided with 2 LED display screens which are positioned at the through passage and synchronously display train operation information with voice broadcasting, at least 10 Chinese characters can be displayed in one line and can be rolled, and the text content can be set through PTU software. Displaying information related to train running, comprising: displaying by adopting Chinese and English languages; the line, direction and terminal station of train operation; the next station the train is about to arrive at; display to the station (in synchronization with digital broadcast announcements); displaying door opening information; and each exit information of the next station.
As shown in fig. 2, 3 processes are deployed in the control host (PCU):
(1) and a Broker process, wherein when the system is powered on, the processes in each device establish connection with all connectable brokers. But only sends messages to the "master" Broker when sending messages.
(2) And the tcmsAdapter process is used for receiving data such as station state, speed and the like sent by the train control system. And then releases the contents of site information, emergency information and the like through a Broker process.
(3) And the DisService process is responsible for subscribing the contents of site information, emergency information and the like issued by the Broker and sending the contents to the LED display screen of the cab according to the proprietary protocol format.
2 processes are deployed in a system control extension (SCU):
and the DisService process is responsible for subscribing the contents of site information, emergency information and the like issued by the Broker and sending the contents to the electronic map screen, the LED display screen and the multimedia television screen according to the protocol format.
And the streaming service process supports continuous playing of local multi-directory files and external stream forwarding.
As shown in fig. 3, the two control hosts are hot-standby to each other. The hot standby state and the switching time are managed by a debugging process 'Scheduler'.
One of the two control hosts is set as a default 'master'. When started, the default "master" is to be the master. And the other control host operates as a "backup" when it is started.
Normally, the current "master" sends heartbeats to the "slave". When the standby cannot receive the heartbeat of the primary within a certain time interval, the standby is switched to be the primary. And starts sending heartbeats to the other controlling host.
If the control host machine of the 'non-default main' receives the 'heartbeat' when the control host machine is in the 'main' working state, the control host machine is converted into the 'standby' state. The heartbeat to the other controlling host is stopped.
MQTT (Message Queuing Telemetry Transport) is a lightweight communication protocol based on Publish/Subscribe (Publish/Subscribe) mode. MQTT has the greatest advantage of providing real-time, reliable messaging services to remote devices with very little code and limited bandwidth.
The PCU control host is provided with an MQTT server (Broker) for: accepting a network connection from a client; receiving application information issued by a client; processing subscription and unsubscription requests from the client; the application message is forwarded to the subscribed client.
Each device is realized by connecting a Broker: publishing information that other clients may subscribe to; subscribing the messages published by other clients; unsubscribe or delete messages for the application; the connection with the server is disconnected.
As shown in fig. 4, the system can be conveniently maintained by the PTU software. The content maintained includes both system level and device level. The PTU may connect to the system network through a network interface on the PCU or SCU panel. Then the tasks of log downloading, equipment setting, program upgrading and the like can be completed.
The setting of the equipment comprises the centralized setting of the font, content, size and scrolling speed of the LED screen. The method supports the setting of the content, the font and the font size of the LCD multimedia screen, and supports multi-format switching (namely, on the basis of the original format, a plurality of versions can be added, and the user is allowed to switch in a centralized way).
The vehicle-mounted passenger information display system disclosed by the embodiment adopts a high-redundancy digital communication design, and each terminal device supports a Bypass function. The LCD dynamic electronic map display screen supports the functions of in-station navigation, crowdedness display and the like.
Claims (10)
1. The utility model provides a be applied to on-vehicle passenger information display system of track traffic environment which characterized in that: the control host is respectively arranged in the head cab and the tail cab, a dynamic electronic map display screen is respectively arranged above all doors of each passenger room, more than two multimedia displays, a channel passing display screen and a kilomega switch are also respectively arranged in each passenger room, the dynamic electronic map display screen, the multimedia displays and the channel passing display screen in each passenger room are respectively connected and communicated with the kilomega switch in the passenger room in which the dynamic electronic map display screen, the multimedia displays and the channel passing display screen are arranged through network cables, and the kilomega switch of each passenger room and the control host of the head cab and the tail cab are respectively connected into the ring network.
2. The on-board passenger information display system applied to a rail transit environment according to claim 1, wherein: the head control host and the tail control host adopt a hot backup mechanism, and when the activation end control host fails, the other end control host replaces the operation of the activation end control host.
3. The on-board passenger information display system applied to a rail transit environment according to claim 1, wherein: the dynamic electronic map display screen is an LCD screen, the display information comprises subway station information, next station information, upcoming station reminding, character picture propaganda, time display, door opening side indication, current carriage position, carriage crowding degree and station navigation, and the dynamic electronic map display screen also receives and displays messages sent by other systems of the train through a UDP data transmission protocol.
4. The on-board passenger information display system applied to a rail transit environment according to claim 1, wherein: the vehicle-mounted multimedia information playing system is internally provided with a hard disk and plays multimedia information through a multimedia display of the passenger room where the vehicle-mounted multimedia information playing system is located, preferentially receives the multimedia information issued by the control center OCC from the ground PIS through a vehicle-ground wireless network and plays the multimedia information in real time, and independently plays the multimedia information stored in the hard disk if necessary.
5. The on-board passenger information display system applied to a rail transit environment according to claim 4, wherein: 3 processes are deployed in the control host: a Broker process, a TcmsAdapter process and a DisService process; 2 processes are deployed in a vehicle-mounted multimedia information playing system: a DisService process and a streamService process.
6. The on-board passenger information display system applied to a rail transit environment according to claim 1, wherein: the multimedia display is an LCD display screen, and can automatically diagnose the problems of uneven backlight, black screen, white screen, broken screen and screen skipping and report.
7. The on-board passenger information display system applied to a rail transit environment according to claim 1, wherein: the multimedia display supports a multi-window split-screen playing mode, the content comprises video, pictures, texts and accompanying sounds, each area is independently controlled, and an independent playing list is provided.
8. The on-board passenger information display system applied to a rail transit environment according to claim 7, wherein: the multimedia display displays in four windows in a split screen mode: windows above the screen are logo and terminal station information of a subway company; the left window in the middle of the screen is weather condition and next station information, and the largest window in the middle of the screen is a video playing area and is used for playing live broadcast information from the ground or local pre-recorded video information; the window below the screen is an emergency and prompt information playing area.
9. The on-board passenger information display system applied to a rail transit environment according to claim 1, wherein: the train head monitoring glass of the head and tail cabs is respectively provided with a terminal LED display screen for displaying the terminal information of the train operation, the terminal LED display screen is controlled by a cab key, and the head and tail cabs can display the terminal information after the driver opens the key.
10. The on-board passenger information display system applied to a rail transit environment according to claim 1, wherein: two network cables are led out from the kilomega switch of each passenger room and are respectively connected to the equipment on two sides of the passenger room, and each equipment has a Bypass function.
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| CN202111067760.0A CN113602319A (en) | 2021-09-13 | 2021-09-13 | Vehicle-mounted passenger information display system applied to rail transit environment |
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| CN202111067760.0A CN113602319A (en) | 2021-09-13 | 2021-09-13 | Vehicle-mounted passenger information display system applied to rail transit environment |
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Cited By (1)
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