CN108945009B - Train broadcasting monitoring system - Google Patents
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- CN108945009B CN108945009B CN201810963520.0A CN201810963520A CN108945009B CN 108945009 B CN108945009 B CN 108945009B CN 201810963520 A CN201810963520 A CN 201810963520A CN 108945009 B CN108945009 B CN 108945009B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/20—Trackside control of safe travel of vehicle or vehicle train, e.g. braking curve calculation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/40—Handling position reports or trackside vehicle data
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/50—Trackside diagnosis or maintenance, e.g. software upgrades
- B61L27/57—Trackside diagnosis or maintenance, e.g. software upgrades for vehicles or vehicle trains, e.g. trackside supervision of train conditions
Abstract
The invention discloses a train broadcasting monitoring system, comprising: train broadcasting management platform (OCC-TPA), PIS system, TCMS and control center signal system, train broadcasting management platform is equipped with external interface, and external interface includes: the train broadcast management platform is communicated with the PIS system network to perform train broadcast service operation and monitor train running states and equipment states. The invention can carry out related operation on the vehicle-mounted PIS through a network, can complete the service operation functions of manual broadcasting, prerecorded broadcasting, passenger intercom and the like of the train under the unmanned condition, can complete the active and passive monitoring of the train operation state under the unmanned condition, can also complete the monitoring of the train equipment state under the unmanned condition, can carry out real-time monitoring on the real-time operation state of the subway train, and can timely find out faults and acquire the reasons of the faults, thereby solving the fault problem.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a train broadcasting monitoring system.
Background
With the continuous and rapid development of Chinese urban economy and society and the acceleration of urban steps, urban congestion brings various inconveniences to citizens 'travel, and vehicles such as subways, light rails, tramcars, high-speed rails and the like become more and more the preferred vehicles for citizens' travel due to the convenient, rapid and punctual operation advantages.
Currently, on-board passenger information systems (PIS systems) are generally provided on trains in these rail transit fields, and the PIS systems provide real-time train information for passengers to guide the passengers to take a bus. However, some unpredictable failures may inevitably occur during train operation. For example, when a passenger takes a subway, the subway immediately enters a subway station, and the subway performs arrival reminding broadcasting, but the arrival reminding broadcasting is not transmitted due to equipment reasons. The passengers do not get off the bus at the time, and the passengers complain. Since the arrival reminder broadcasting time does not last for a long time, if the driver does not record the event and phenomenon of the fault in time at this time. Especially, the subway train can normally report the stop at the next stop, so that the root cause of the fault is likely to be not found.
Therefore, it is necessary to provide a solution to realize intelligent monitoring of the broadcasting state of the train, discover the fault in time and acquire the cause of the fault, thereby solving the fault.
Disclosure of Invention
The invention provides a train broadcasting monitoring system capable of intelligently monitoring train broadcasting states and faults in real time.
In order to achieve the above object, the present invention provides a train broadcasting monitoring system including: train broadcast management platform (OCC-TPA), PIS system, TCMS and control center signaling system, wherein, train broadcast management platform is equipped with external interface, external interface includes: the train broadcast management platform is in communication connection with the PIS system through the vehicle-mounted external interface and is in communication connection with the control center signal system through the OCC external interface, and the vehicle-mounted external interface is connected with the PIS system through a vehicle-to-ground wireless network; the PIS system is in communication connection with the TCMS; wherein:
the train broadcast management platform is used for communicating with the PIS system network, performing train broadcast service operation and monitoring train running states and equipment states.
The PIS system is provided with a double-network port and a gateway, and the train broadcasting monitoring system further comprises: the PIS system is connected with a train-ground wireless network through a double network port so as to communicate with the train broadcast management platform, wherein the double network port plays a role in network isolation; the PIS system is communicated with a cloud server through the gateway, and the cloud server is connected with external terminal equipment;
the train broadcast management platform is also used for acquiring a train operation state and a device state through a double network port of the train-ground wireless network connection PIS system and performing broadcast service operation on the train;
the cloud server is used for acquiring the train operation state and the equipment state through a gateway of the PIS system and then sending the train operation state and the equipment state to external terminal equipment.
The TCMS is used for acquiring train operation information, sending the train operation information to the PIS system, and sending the train operation information to the train broadcast management platform through a train-ground wireless network by the PIS system;
the PIS system is also used for automatically broadcasting and displaying related contents according to the received train operation information.
The train broadcasting management platform is further used for receiving the actual running state of the train reported by the control center signal system, and according to the actual running state of the train, carrying out artificial microphone broadcasting on one train or multiple trains or all trains or issuing a voice file prestored on the platform.
The train broadcast management platform is further used for comparing the train operation information reported by the PIS system with the actual operation state of the train reported by the control center signal system to judge whether the current operation state of the train is normal or not.
The train broadcast management platform is further used for selecting hang-up or answering according to the alarm instruction after receiving the alarm instruction of the emergency alarm on the train triggered by the passenger forwarded by the PIS system, and completing visual intercom with the passenger and connecting with a comparison camera in the carriage during answering.
The train broadcast management platform is also used for carrying out emergency processing according to the received burst instruction.
Wherein, the PIS system includes: the control unit is arranged in the train cab, and the power amplifier unit is arranged in each carriage; wherein:
the control unit is used for selecting corresponding voice files, transmitting the voice files to the power amplification unit of each carriage, amplifying signals by the power amplification unit and playing the signals by the loudspeaker.
Wherein, the PIS system further comprises: the power amplifier comprises a double-network port module with a double-network port and a plurality of power amplifier audio output detection modules, wherein each power amplifier audio output detection module is at least correspondingly connected with a power amplifier unit of a carriage.
Wherein, the train broadcast management platform monitors the equipment state and includes: communication type detection is carried out on internal equipment of the PIS system, whether the detection equipment works normally or not is detected, and the internal equipment of the PIS system comprises: LED, dynamic map, motherboard card, NVR.
Compared with the prior art, the train broadcasting monitoring system provided by the invention has the advantage that the OCC-TPA is connected with the vehicle-mounted PIS system through the train-ground wireless system in a network manner. The OCC-TPA can perform related operation on the vehicle-mounted PIS through a network, so that service operation functions such as manual broadcasting, prerecorded broadcasting, passenger intercom and the like of the train under the unmanned condition can be completed, active and passive monitoring of the train operation state under the unmanned condition can be completed, and monitoring of the train equipment state under the unmanned condition can be completed. In addition, the vehicle-mounted passenger information system (PIS system) is combined with the intelligent monitoring platform, and the real-time running state of the train and the vehicle running signals (information such as ATS and the like) of the source of the comparison signal system can be effectively recorded through the comparison judging method for the real-time monitoring of the train state. Therefore, when faults occur, the influence of human factors is avoided, and the accuracy of fault time recording is ensured. In addition, the type of fault problems (such as non-station reporting, fault reporting and the like) can be clarified by comparing the trigger signals of the signal system, and the root cause of the fault can be analyzed by combining the fault recording time and the operation logs recorded by the PIS system and the signal system.
The method can monitor the real-time running state of the subway train in real time, and compare the signal source data of the signal system, so that the monitoring of the subway train state can be further deepened, the monitoring of the train running state by a subway operation company is facilitated, faults are found in time, the reasons for the faults are obtained, and the fault problem is solved.
Drawings
FIG. 1 is a schematic diagram of a train broadcast monitoring system of the present invention;
FIG. 2 is a schematic diagram of a scenario of the train broadcast monitoring system of the present invention;
FIG. 3 is a detailed block diagram of the train broadcast monitoring system of the present invention;
FIG. 4 is a logic diagram of a method for determining whether the train is in a normal operating condition in accordance with an embodiment of the present invention;
fig. 5 is another logic diagram for determining whether the running state of the train is normal in the embodiment of the invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention relates to the term interpretation:
TCMS: train Control Management System train control and management system
PIS: passenger Information System passenger information system
CBTC: communication Based Train Control train control system based on communication technology
ATC: automatic Train Control, an automatic train control system.
ATS, a control center signaling system.
The scheme of the invention can be applied to the technical field of railway vehicles, and is particularly suitable for unmanned systems. The present embodiment is exemplified by an unmanned train, but is not limited thereto.
The unmanned system is completely free of participation of drivers and crews, the vehicle can realize full-automatic operation under the unified control of the control center, and the functions of dormancy, awakening, preparation, self-checking, automatic operation, parking, opening and closing of the vehicle door, automatic recovery under the fault condition and the like of the train are automatically realized, and the vehicle washing can be completed under the unmanned condition.
The unmanned rating (GoA: grades of Automation) includes:
grade GoA 1: manual driving under the protection of ATP, and drivers control the starting, running, stopping and opening and closing of the doors of the train and process emergency situations.
Grade GoA 2: semi-automatic driving. The driver controls the train to run, opens and closes the car door and deals with emergency. But the start and stop of the train is automated.
Grade GoA 3: unmanned. However, the train is equipped with a vehicle-mounted person to control the opening and closing of the vehicle door and to cope with emergency. The start and stop of the train are automated.
Grade GoA 4: unmanned, wake-up, start-up, stop, door switch and deal with the full automation of emergency of train, no personnel participation.
Most of subway lines which are already operated in China are designed to be GOA3. As rail unmanned systems become more and more mature, GOA4 has gradually become the standard for subway train unmanned. As unmanned systems mature, the demand for on-board PIS systems also changes.
Specifically, referring to fig. 1, 2 and 3, an embodiment of the present invention provides a train broadcast monitoring system, which includes: train broadcast management platform (OCC-TPA), PIS system, TCMS and control center signaling system, wherein, train broadcast management platform is equipped with external interface, external interface includes: the train broadcast management platform is in communication connection with the PIS system through the vehicle-mounted external interface and is in communication connection with the control center signal system through the OCC external interface, and the vehicle-mounted external interface is connected with the PIS system through a vehicle-to-ground wireless network; the PIS system is in communication connection with the TCMS; wherein:
the train broadcast management platform is used for communicating with the PIS system network, performing train broadcast service operation and monitoring train running states and equipment states.
Further, as shown in fig. 3, the PIS system is provided with a dual-network port and a gateway, and the train broadcasting monitoring system further includes: the cloud server is used for providing a cloud server,
the PIS system is connected with a train-ground wireless network through a double network port so as to communicate with the train broadcast management platform, wherein the double network port plays a role in network isolation; the PIS system is communicated with a cloud server through the gateway, and the cloud server is connected with external terminal equipment;
the train broadcast management platform is also used for acquiring a train operation state and a device state through a double network port of the train-ground wireless network connection PIS system and performing broadcast service operation on the train;
the cloud server is used for acquiring the train operation state and the equipment state through a gateway of the PIS system and then sending the train operation state and the equipment state to external terminal equipment.
Specifically, the TCMS is configured to obtain train operation information, send the train operation information to a PIS system, and send the train operation information to the train broadcast management platform through a train-ground wireless network by using the PIS system;
the PIS system is also used for automatically broadcasting and displaying related contents according to the received train operation information.
The train broadcasting management platform is also used for receiving the actual running state of the train reported by the control center signal system, and according to the actual running state of the train, carrying out artificial microphone broadcasting on one train or multiple trains or all trains or issuing a voice file prestored on the platform.
The train broadcast management platform is also used for comparing the train running information reported by the PIS system with the actual running state of the train reported by the control center signal system to judge whether the current running state of the train is normal or not.
The train broadcast management platform is also used for selecting hang-up or answering according to the alarm instruction after receiving the alarm instruction of the emergency alarm on the train triggered by the passenger forwarded by the PIS system, and completing visual intercom with the passenger and connecting with a comparison camera in the carriage during answering.
The train broadcast management platform is also used for carrying out emergency processing according to the received burst instruction.
The content of the train broadcasting management platform for monitoring the train running state comprises the following steps: the current display contents of the LED display screen of the terminal station and the LED display screen of the passenger room are displayed in real time through voice broadcasting of the train; the train operation information sent to the PIS system by the TCMS comprises: the method comprises the steps of starting station coding, end station coding, current station coding, next station coding, train number, pre-arrival broadcasting trigger signal, time information and station crossing information of train traveling.
The PIS system comprises: the control unit is arranged in the train cab, and the power amplifier unit is arranged in each carriage; wherein:
the control unit is used for selecting corresponding voice files, transmitting the voice files to the power amplification unit of each carriage, amplifying signals by the power amplification unit and playing the signals by the loudspeaker.
The monitoring of the equipment state by the train broadcast management platform comprises the following steps: communication type detection is carried out on internal equipment of the PIS system, whether the detection equipment works normally or not is detected, and the internal equipment of the PIS system comprises: LED, dynamic map, motherboard card, NVR.
Specifically, as an implementation manner, as shown in fig. 4, the step of comparing, by the train broadcast management platform, the train running state reported by the PIS system with the actual running state of the train obtained in real time from the signal system, and determining whether the running state of the train is normal includes:
the train broadcast management platform compares the train running state reported by the PIS system with the actual running state of the train obtained from the signal system in real time, and judges whether the train running state and the actual running state are consistent;
if the two are inconsistent, judging that the PIS system is misreported;
if the PIS system and the PIS system are consistent, judging whether the PIS system performs broadcast playing according to a preset condition;
if the PIS system does not broadcast according to the preset condition, judging that the PIS system is not in report;
and if the PIS system performs broadcast playing according to a preset condition, judging that the running state of the train is normal.
As another embodiment, as shown in fig. 5, the step of the train broadcast management platform autonomously learning actual station reporting logic in advance, and comparing the train running state reported by the PIS system with the actual running state of the train obtained in real time from the signal system by the train broadcast management platform, and determining whether the running state of the train is normal includes:
the train broadcast management platform compares the train running state reported by the PIS system with the actual running state of the train obtained from the signal system in real time, and judges whether the train running state and the actual running state are consistent;
if the two states are consistent, judging whether the obtained train running state is consistent with the actual running logic of the train;
if the obtained train running state is consistent with the actual running logic of the train, judging that the running state of the train is normal;
if the obtained train running state is inconsistent with the actual running logic of the train, the signal system is judged to be abnormal.
The train broadcast management platform compares the train running state reported by the PIS system with the actual running state of the train obtained from the signal system in real time, and after the step of judging whether the train running state and the actual running state are consistent, the train broadcast management platform further comprises the following steps:
if the two are inconsistent, judging whether the actual running state of the train acquired by the signal system in real time is consistent with the actual running logic of the train;
if the actual running state of the train, which is obtained by the signal system in real time, is consistent with the actual running logic of the train, judging that the PIS system is abnormal, and judging the fault type of the PIS system according to the data reported by the PIS system;
if the actual running state of the train, which is obtained in real time by the signal system, is inconsistent with the actual running logic of the train, judging whether the running state of the train reported by the PIS system is consistent with the actual running logic of the train;
if the train running state reported by the PIS system is consistent with the actual running logic of the train, judging that the signal system is abnormal;
and if the train running state reported by the PIS system is inconsistent with the actual running logic of the train, judging that the signal system and the PIS system are abnormal.
Further, the train broadcast management platform gives an alarm to the outside when judging that the running state of the train is abnormal; and/or, when receiving an information inquiry command, the train broadcast management platform feeds back a corresponding inquiry result according to the inquiry command; and/or the train broadcasting management platform transmits the train running state to each terminal through the cloud server, and the platform mainly depends on a data analysis technology and a cloud service communication technology; the running state and fault information of the train are obtained through a data analysis technology, and the information is sent to each terminal through a cloud service communication technology.
Further, the train broadcast management platform is further used for feeding back the monitored train running state and/or equipment state to the APP of the external terminal equipment; or providing a corresponding SDK for the third-party APP access platform, and calling a corresponding function by the third-party APP through the SDK to obtain the train running state and/or the equipment state and displaying the train running state and/or the equipment state on an interface.
Compared with the prior art, the train broadcasting monitoring system provided by the invention has the advantage that the OCC-TPA is connected with the vehicle-mounted PIS system through the train-ground wireless system in a network manner. The OCC-TPA can perform related operation on the vehicle-mounted PIS through a network, so that service operation functions such as manual broadcasting, prerecorded broadcasting, passenger intercom and the like of the train under the unmanned condition can be completed, active and passive monitoring of the train operation state under the unmanned condition can be completed, and monitoring of the train equipment state under the unmanned condition can be completed. In addition, the vehicle-mounted passenger information system (PIS system) is combined with the intelligent monitoring platform, and the real-time running state of the train and the vehicle running signals (information such as ATS and the like) of the source of the comparison signal system can be effectively recorded through the comparison judging method for the real-time monitoring of the train state. Therefore, when faults occur, the influence of human factors is avoided, and the accuracy of fault time recording is ensured. In addition, the type of fault problems (such as non-station reporting, fault reporting and the like) can be clarified by comparing the trigger signals of the signal system, and the root cause of the fault can be analyzed by combining the fault recording time and the operation logs recorded by the PIS system and the signal system.
The method can monitor the real-time running state of the subway train in real time, and compare the signal source data of the signal system, so that the monitoring of the subway train state can be further deepened, the monitoring of the train running state by a subway operation company is facilitated, faults are found in time, the reasons for the faults are obtained, and the fault problem is solved.
The following describes embodiments of the present invention in detail:
the OCC-TPA is connected with the vehicle-mounted PIS system through the vehicle-to-ground wireless system in a network manner. The OCC-TPA can perform related operation on the vehicle-mounted PIS through a network, so that service operation functions such as manual broadcasting, prerecorded broadcasting, passenger intercom and the like of the train under the unmanned condition can be completed, active and passive monitoring of the train operation state under the unmanned condition can be completed, and monitoring of the train equipment state under the unmanned condition can be completed.
Active and passive monitoring of train operation conditions under unmanned conditions, and monitoring of train equipment conditions under unmanned conditions, includes: images of the front, the interior and the line of a running vehicle are provided for control center dispatching personnel, accident information is monitored and recorded on the front and the rear of the vehicle through video monitoring equipment, and accident reasons are convenient to analyze in the future; when the vehicle fails, the auxiliary control center remotely controls the vehicle to creep to the station to be refuged; in-vehicle video monitoring linkage and state monitoring of vehicle-mounted communication equipment.
The unmanned train broadcasting management platform is called by the invention, and English is called simply: OCC-TPA.
The simple description is OCC (control center), T (train), PA (on-board train broadcasting system).
The whole set of system is composed of an OCC center management platform (train broadcasting management platform), a vehicle-mounted PIS system and an external interface. The external interfaces are divided into vehicle external interfaces (TMCS) and OCC external interfaces (TISCS, ATS and the like).
The working logic is that OCC-TPA is connected with the vehicle-mounted PIS system through the vehicle-ground wireless system. The OCC-TPA can perform related operation on the vehicle-mounted PIS through a network, so that service operation functions such as manual broadcasting, prerecorded broadcasting, passenger intercom and the like of the train under the unmanned condition can be completed, active and passive monitoring of the train operation state under the unmanned condition can be completed, and monitoring of the train equipment state under the unmanned condition can be completed.
The business operation comprises the following steps:
(1) automatic driving broadcast
Automatically triggering by TMCS, and timely broadcasting and displaying related content by a vehicle-mounted broadcasting system;
(2) artificial broadcast
The voice file is initiated by the control center, and can be broadcasted by a microphone or sent to a platform for one train or multiple trains or all trains.
(3) Passenger intercom
After the passengers trigger the emergency alarm on the unmanned train, the OCC-TPA management platform is used for unified management, and hang-up and answering are selected. And when answering, the control camera is connected with the passenger to complete visual intercom and is connected with the interior of the carriage in parallel.
(4) Emergency event
The emergency events of the unmanned train are divided into three types, one is an emergency event triggered by TMCS and directly linked with the vehicle-mounted PIS. Emergency events such as door failure.
The other emergency is serious, and the vehicle-mounted PIS related rescue is carried out after OCC-TPA confirmation is needed. Such as fire, evacuation from both ends, stopping operation, etc.
The last is a broadcast of some special cases of prefabrication under the OCC-TPA platform. Such as peak broadcasting, temporary parking pacifying broadcasting, etc.
The service monitoring comprises the following steps:
(1) manual monitoring
The vehicle-mounted PIS service can be remotely monitored through the OCC-TPA, and the monitoring content mainly comprises real-time voice broadcasting of the train, current display content of a terminal LED and a passenger room LED display screen.
(2) Automatic monitoring
Each on-board PIS system transmits the operation state information of the unmanned train to the control center in real time. The real-time status information includes: station reporting operation data, normal broadcast event execution, emergency broadcast event execution. And OCC-TPA compares with ATS (train signal system) operation information to find out whether there is error report and missing report station phenomenon, and the link detection of the carriage internal broadcasting system power amplifier device and the connected loudspeaker.
The equipment monitoring comprises the following steps:
(1) vehicle-mounted PIS equipment detection
OCC-TPA can also carry out communication class detection to the equipment such as on-vehicle PIS internal equipment such as LED, dynamic map, motherboard card, NVR, etc. whether detection equipment normally works.
Compared with the prior art, the platform provided by the invention has the characteristics that:
1. the vehicle-mounted PIS system adopts a full Ethernet architecture, and all control data, audio data and video data are communicated in an Ethernet mode.
2. The in-vehicle PIS system can perform fault linkage of a single indicating device (LCD dynamic map) according to a single door fault. Not all of the linkages.
3. OCC-TPA can adjust the control mode according to the different GOA grades. Under full control of GOA4, GOA3 is lower in priority than driver operation.
4. OCC-TPA internal personnel management has multi-level division, and more pertinent business operation and management can be carried out according to business reality.
Specifically, in this embodiment, the train broadcast management platform may be a mobile train status monitoring platform, where the mobile train status monitoring platform may be disposed on a train, or may be disposed independently outside the train, such as a ground center, or on a handheld mobile terminal of a train manager, and the gateway is in communication connection with the cloud server through an MQTT protocol, that is, through a remote communication Manner (MQTT), to perform data communication; the external terminal device may be: a mobile terminal or other terminal device.
The MQTT has the following characteristics:
1. providing one-to-many message publication using a publish/subscribe message schema, decoupling the application;
2. message transmission to load content mask;
3. providing network connectivity using TCP/IP;
4. there are three message distribution qualities of service:
"at most once", message publishing is entirely dependent on the underlying TCP/IP network. Message loss or duplication may occur. This level can be used in cases where the environmental sensor data is lost for a read record, not so-called, since there will be a second transmission in the near future.
"at least once" ensures that the message arrives, but message repetition may occur.
"once only" ensures that the message arrives once. This level may be used in cases where message repetition or loss may lead to incorrect results in the billing system.
5. Small transmission, low overhead (2 bytes for fixed length header), minimal protocol exchanges to reduce network traffic;
6. the Last Will and technology features are used to inform the mechanism about the client abort at each party.
The TCMS is used for acquiring train operation information according to a vehicle setting mode and sending the train operation information to the PIS system; the vehicle setting mode includes: automatic mode, semi-automatic mode, manual mode.
The PIS system is used for receiving train operation information sent by the TCMS, carrying out automatic broadcasting and playing, and uploading played contents to the train broadcasting management platform through train-ground wireless communication;
the train broadcast management platform is further used for receiving the play content reported by the PIS system, obtaining a train running state, acquiring the actual running state of the train from the signal system in real time, comparing the train running state reported by the PIS system with the actual running state of the train acquired from the signal system in real time, and judging whether the running state of the train is normal or not.
The train operation information sent to the PIS system by the TCMS comprises: the method comprises the steps of starting station coding, end station coding, current station coding, next station coding, train number, pre-arrival broadcasting trigger signal, time information and station crossing information of train traveling.
The content played by the PIS system comprises: the method comprises the steps of starting station coding, end station coding, current station coding, next station coding, train number, station pre-arrival broadcasting signals, station arrival broadcasting signals, time information, power amplifier working states and working states of other vehicle-mounted PIS equipment.
The PIS system comprises: the control unit is arranged in the train cab, and the power amplifier unit is arranged in each carriage; wherein:
the control unit is used for selecting corresponding voice files, transmitting the voice files to the power amplification unit of each carriage, amplifying signals by the power amplification unit and playing the signals by the loudspeaker.
The system architecture and implementation principle of the present invention are described in detail below by taking a subway train as an example:
a vehicle-mounted PIS system (or a vehicle-mounted broadcasting system) is arranged on a subway train (or other types of trains), and the vehicle-mounted PIS system comprises: the cab is provided with a control unit of a vehicle-mounted PIS system (broadcasting system), each carriage is provided with a power amplification unit, and the vehicle-mounted PIS system is connected with a train control system (TCMS);
the ground control center is provided with a subway vehicle state monitoring platform (train broadcasting management platform), the vehicle state monitoring platform is connected with the vehicle-mounted PIS through tunnel wireless communication, and meanwhile, the vehicle state monitoring platform is connected with a control center signal system (ATS) in a wired mode or is forwarded through other systems to acquire train signal data.
The TCMS receives vehicle operation information according to a vehicle setting mode (automatic mode, semiautomatic mode, manual mode).
The vehicle-mounted PIS performs automatic broadcasting and playing by receiving vehicle operation information sent by the TCMS, and broadcasting contents comprise 'pre-arrival broadcasting', 'arrival broadcasting' and the like; and when the vehicle-mounted PIS system plays each time, the vehicle-mounted PIS system main control unit is responsible for selecting a responsive voice file, transmitting the voice file to the power amplifier of each car, amplifying signals by the power amplifier, and playing the signals by a loudspeaker.
The TCMS sends the vehicle running information content of the vehicle-mounted PIS system to the vehicle-mounted PIS system, wherein the vehicle running information content comprises (but is not limited to) a start station code, an end station code, a current station code, a next station code, a train number, a pre-arrival broadcasting trigger signal, an arrival broadcasting trigger signal, time information, station crossing information and the like of train running;
and uploading the running state of the vehicle to the subway vehicle state monitoring platform by the PIS system through the vehicle-ground wireless system according to the operation of the PIS system.
The vehicle-mounted PIS uploads the played content to the subway vehicle state monitoring platform in real time through vehicle-to-ground wireless communication, wherein the content comprises (and is not limited to): a start station code, an end station code, a current station code, a next station code, a train number, a station pre-arrival broadcasting signal, a station arrival broadcasting signal, time information, a power amplifier working state, working states of other vehicle-mounted PIS equipment and the like of train travelling;
the platform is connected with a signal system (ATS and the like) to acquire the running and stopping information of each train on the line in real time, and the beacons comprise (but are not limited to) the platform number, the section number, the time information and the like of the train;
the platform judges whether the PIS broadcast is correct by comparing the data acquired from the vehicle-mounted PIS and the signal system ATS:
determining which section (or platform) the train is in through the station information uploaded by the vehicle-mounted PIS; the data acquired by the ATS can also determine which section (or station) the train is in; comparing the two results, if the two results are different, judging that the train broadcasting is wrong;
through preset, it can be determined that the in-vehicle PIS performs several broadcasts (pre-arrival broadcasts, etc., respectively) within one section; judging whether the vehicle-mounted PIS completes the preset broadcast content in the same section in sequence according to the comparison of the broadcast signal uploaded by the vehicle-mounted PIS and ATS data, and if not, judging that the report is missed;
when the vehicle-mounted PIS system broadcasts each time, detecting whether the power amplification unit in each carriage outputs a signal or not, uploading the state of the power amplification unit to a subway vehicle state monitoring platform in real time, and judging that the vehicle-mounted PIS system is correct if each power amplification unit outputs a signal when broadcasting the vehicle-mounted PIS system; if part or all of the power amplification units do not output signals, broadcasting faults can be prompted to operators according to preset fault levels.
In addition, the platform can also realize the butt joint with the third party APP:
the platform provides a corresponding SDK for the third party APP access platform, and the third party APP obtains train state information by calling a corresponding function through the SDK and displays the train state information on the interface.
The platform provides a corresponding SDK for the third party APP access platform, and the third party APP obtains train state information by calling a corresponding function through the SDK. The third party APP displays the train state information on the interface by processing the train state information. Thus, the docking of the third party APP and the mobile station reporting platform is completed.
The SDK performs the following functions: receiving train state information of a cloud server; and transmitting the train state information to the APP.
Compared with the prior art, the mobile train state monitoring platform mainly uses the MQTT communication technology to display train state information on the mobile terminal and send out a prompt when a train fails.
Furthermore, as shown in fig. 3, the PIS system may further include: the power amplifier comprises a double-network port module with a double-network port and a plurality of power amplifier audio output detection modules, wherein each power amplifier audio output detection module is at least correspondingly connected with a power amplifier unit of a carriage. The PIS system may further include: the central control unit (central control shown in fig. 3) is also connected with a control box and a power amplifier unit, the control box is connected with various train equipment, and the central control unit is also connected with a TMS (train management system) interface board on the train.
The system comprises a cloud server, a real-time remote intelligent monitoring system, a real-time monitoring power amplifier, a real-time monitoring system and a real-time monitoring system.
Specifically, first, the power amplifier audio output detection module acquires audio information output by a corresponding power amplifier unit in real time, and specifically includes:
the power amplifier audio output detection module acquires an audio signal output by a corresponding power amplifier unit in real time;
the audio signal output by the power amplification unit is converted into digital audio through high-precision AD conversion; and then, acquiring whether the audio signal subjected to AD conversion is strong or weak by a preset audio monitoring analysis algorithm.
And then, the double-portal module acquires train state and operation information, wherein the double-portal module can acquire the train state and the operation information from the broadcasting trigger of a driver and/or the broadcasting trigger of a TCMS.
After the double-network port module acquires the train state and the operation information, the broadcasting state of each power amplifier unit is judged to be normal or not by matching with the audio information sent by the power amplifier audio output monitoring module.
The double-network port module acquires train state and operation information, compares the train state and the operation information with the audio information sent by the power amplifier audio output monitoring module, judges whether the broadcasting state of each power amplifier unit is normal, acquires error alignment information of train broadcasting output, counts fault information of all-vehicle equipment and sends the fault information to the cloud server through an MQTT protocol.
Compared with the prior art, the invention monitors the special equipment in real time through the audio, monitors the power amplifier audio in real time, compares and analyzes the power amplifier audio with the train operation information collected in real time, acquires the error alignment information of train broadcasting output, counts the fault information of all-vehicle equipment at the same time, sends the fault information to the cloud server through the MQTT protocol, and forwards the fault information to a terminal with needs through the cloud server. By the method, the real-time running state of the train can be monitored in real time through the remote cloud server, so that subway operation companies can conveniently monitor the running state of the train, faults can be found out in time, the reasons for the faults can be obtained, and the fault problem is solved.
In addition, a vehicle-mounted passenger information system (PIS system) and an intelligent monitoring platform are combined, and the real-time running state of the train and the vehicle running signal (information such as ATS) of the source of a comparison signal system can be effectively recorded through a comparison judging method for real-time monitoring of the train state. Therefore, when faults occur, the influence of human factors is avoided, and the accuracy of fault time recording is ensured. In addition, the type of fault problems (such as non-station reporting, fault reporting and the like) can be clarified by comparing the trigger signals of the signal system, and the root cause of the fault can be analyzed by combining the fault recording time and the operation logs recorded by the PIS system and the signal system.
By the method, the real-time running state of the subway train can be monitored in real time, and the monitoring of the subway train state can be further deepened by comparing the signal source data of the signal system, so that the monitoring of the subway train running state by a subway operation company is facilitated, faults are found in time, the reasons for the faults are obtained, and the fault problem is solved.
It should be noted that, the foregoing reference numerals of the embodiments of the present invention are merely for describing the embodiments, and do not represent the advantages and disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as above, comprising instructions for causing a terminal device (which may be a mobile phone, a television, a computer, etc.) to perform the method of the various embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or modifications in the structures or processes described in the specification and drawings, or the direct or indirect application of the present invention to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A train broadcast monitoring system, the train broadcast monitoring system comprising: train broadcast management platform (OCC-TPA), PIS system, TCMS and control center signaling system, wherein, train broadcast management platform is equipped with external interface, external interface includes: the train broadcast management platform is in communication connection with the PIS system through the vehicle-mounted external interface and is in communication connection with the control center signal system through the OCC external interface, and the vehicle-mounted external interface is connected with the PIS system through a vehicle-to-ground wireless network; the PIS system is in communication connection with the TCMS;
wherein: the train broadcast management platform is used for communicating with the PIS system network, performing train broadcast service operation and monitoring train running states and equipment states; the train broadcasting management platform is also used for receiving the actual running state of the train reported by the control center signal system, and carrying out artificial microphone broadcasting on one train or a plurality of trains or all trains or issuing a voice file prestored on the platform according to the actual running state of the train; and the system is also used for comparing the train running information reported by the PIS system with the actual running state of the train reported by the control center signal system and judging whether the current running state of the train is normal or not.
2. The system of claim 1, wherein the PIS system is provided with a dual portal and a gateway, the train broadcast monitoring system further comprising: the cloud server is used for providing a cloud server,
the PIS system is connected with a train-ground wireless network through a double network port so as to communicate with the train broadcast management platform, wherein the double network port plays a role in network isolation; the PIS system is communicated with a cloud server through the gateway, and the cloud server is connected with external terminal equipment;
the train broadcast management platform is also used for acquiring a train operation state and a device state through a double network port of the train-ground wireless network connection PIS system and performing broadcast service operation on the train;
the cloud server is used for acquiring the train operation state and the equipment state through a gateway of the PIS system and then sending the train operation state and the equipment state to external terminal equipment.
3. The system of claim 1, wherein the system further comprises a controller configured to control the controller,
the TCMS is used for acquiring train operation information, sending the train operation information to a PIS system, and sending the train operation information to the train broadcast management platform through a train-ground wireless network by the PIS system;
the PIS system is also used for automatically broadcasting and displaying related contents according to the received train operation information.
4. The system of claim 2, wherein the system further comprises a controller configured to control the controller,
the train broadcast management platform is also used for feeding back the monitored train running state and/or equipment state to the APP of the external terminal equipment; or providing a corresponding SDK for the third-party APP access platform, and calling a corresponding function by the third-party APP through the SDK to obtain the train running state and/or the equipment state and displaying the train running state and/or the equipment state on an interface.
5. The system of claim 2, wherein the system further comprises a controller configured to control the controller,
the train broadcast management platform is also used for selecting hang-up or answering according to the alarm instruction after receiving the alarm instruction of the emergency alarm on the train triggered by the passenger forwarded by the PIS system, and completing visual intercom with the passenger and connecting with a comparison camera in the carriage during answering.
6. The system of claim 2, wherein the system further comprises a controller configured to control the controller,
the train broadcast management platform is also used for carrying out emergency processing according to the received burst instruction.
7. The system of claim 5, wherein the PIS system comprises: the control unit is arranged in the train cab, and the power amplifier unit is arranged in each carriage; wherein:
the control unit is used for selecting corresponding voice files, transmitting the voice files to the power amplification unit of each carriage, amplifying signals by the power amplification unit and playing the signals by the loudspeaker.
8. The system of claim 7, wherein the PIS system further comprises: the power amplifier comprises a double-network port module with a double-network port and a plurality of power amplifier audio output detection modules, wherein each power amplifier audio output detection module is at least correspondingly connected with a power amplifier unit of a carriage.
9. The system of any of claims 1-8, wherein the train broadcast management platform monitoring device status comprises: communication type detection is carried out on internal equipment of the PIS system, whether the detection equipment works normally or not is detected, and the internal equipment of the PIS system comprises: LED, dynamic map, motherboard card, NVR.
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| CN112092838B (en) * | 2019-06-17 | 2022-03-01 | 株洲中车时代电气股份有限公司 | Early warning system, method and device based on train pedestrian flow distribution |
| CN111301485A (en) * | 2020-01-16 | 2020-06-19 | 江苏铁锚玻璃股份有限公司 | Display method combining passenger information system with dynamic screen saver and dynamic map |
| CN111703385B (en) * | 2020-06-28 | 2022-03-11 | 广州易点智慧出行科技有限公司 | Content interaction method and vehicle |
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| CN114559986B (en) * | 2020-11-27 | 2023-10-17 | 比亚迪股份有限公司 | Train running state display method and passenger information system |
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