CN105245302A - Multifunctional telephone broadcast system for train - Google Patents
Multifunctional telephone broadcast system for train Download PDFInfo
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- CN105245302A CN105245302A CN201510602745.XA CN201510602745A CN105245302A CN 105245302 A CN105245302 A CN 105245302A CN 201510602745 A CN201510602745 A CN 201510602745A CN 105245302 A CN105245302 A CN 105245302A
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Abstract
The invention relates to a multifunctional telephone broadcast system for a train, and the system comprises a train central controller, a multifunctional terminal, a switcher, a broadcast enabling wire, a main audio wire, an auxiliary audio wire, and a broadcast bus. The multifunctional terminal is connected with a train Ethernet bus through the switcher, and is connected with the broadcast enabling wire, the main audio wire, the auxiliary audio wire and the broadcast bus. The train central controller is connected with the broadcast enabling wire, and the broadcast enabling wire has a high level and a low level, wherein the high level of the broadcast enabling wire is corresponding to a busy state of the broadcast bus and the low level of the broadcast enabling wire is corresponding to an idle state of the broadcast bus. The train central controller and the multifunctional terminal can adjust the level state of the broadcast enabling wire. The system can receive and transmit voice information in a full duplex manner, integrates the functions of whole broadcast, single-train broadcast, one-key driver calling and full duplex intercom, carries out the redundancy design, and is enabled to work normally even the Ethernet is disconnected.
Description
Technical field
The present invention relates to bullet train communication system field, relate to a kind of train multi-function telephones broadcast system particularly.
Background technology
In recent years, along with bullet train trip is more and more universal, train communication system seems and becomes more and more important.And communication mainly refers to train broadcasting system and train phone system in car, the functions such as it provides during train operation, and site information is reported, background music is play, artificial broadcast, artificial intercommunication.
At present, these two systems are generally separated at present, use telephone system during call, if need broadcast, attendant needs studio to broadcast, and this seems very inconvenient.In addition, attendant generally compares urgent with the call of driver, and relatively frequently, if all dial the number of drivers' cab to call out driver at every turn, the efficiency that seems is not high.If there is emergency to occur, and crew cannot correctly dial drivers' cab number because of anxiety or other reasons for the moment, so may cause serious consequence.
Also there is following problem in the communication system of prior art, such as, when two attendants converse, telephone channel is occupied, if now there is attendant to have important information to want to notify driver or machinist, phone cannot be connected, and likely can cause serious consequence.
If for a certain reason, the command channel in car is destroyed can not be used, and so whole communication system cannot work, and will cause and cannot call out the stops, and emergency cannot the consequence such as broadcast announcement passenger in time.
In addition, the communication modes that UIC568 proposes is half-duplex mode, seems very inconvenient when conversing.
Summary of the invention
The object of the present invention is to provide a kind of train multi-function telephones broadcast system, be intended to solve telephone system in current train and be separated the problem brought inconvenience with broadcast system.
The present invention is achieved in that a kind of train multi-function telephones broadcast system, comprise train central controller, multi-functional terminal end, interchanger, broadcast enable line, main audio line, secondary tone frequency channel wire and broadcast bus, described multi-functional terminal end is connected with train industry ethernet by described interchanger, described train central controller is connected with train industry ethernet by described interchanger, described multi-functional terminal end respectively with described broadcast enable line, main audio line, secondary tone frequency channel wire is connected with broadcast bus, described train central controller is connected with described broadcast enable line, described broadcast enable line has height, low two kinds of level, the busy state of the corresponding described broadcast bus of high level of described broadcast enable line, the idle condition of the corresponding described broadcast bus of low level that described broadcast is enable, described train central controller and described multi-functional terminal end can adjust the level state of broadcast enable line.
Described system can complete and realize call and broadcasting for train two kinds of functions between train by a terminal simultaneously.Traditional UIC568 has an intercommunication priority rigid line, this logic can only allow other intercommunication terminals know and be in engaged condition now, and then only has two logical process modes: the call before the call of dialling arbitrarily can interrupt or arbitrarily rear call of dialling are all because cannot be conversed by the line is busy; Traditional UIC568 bus only has a road intercommunication passage, can only realize half-duplex intercommunication.And train Multifunctional broadcasting telephone system provided by the invention has done suitable optimal design based on UIC568 bus, there are two independently tone frequency channel wires simultaneously, made telephonic communication become full duplex, improve speech quality.In addition, built the broadcasting command system of a redundancy by broadcast enable line, make when Ethernet disconnects for a certain reason, attendant still can pass through broadcast distribution message.
Further technical scheme of the present invention is: train often saves compartment and at least comprises a described multi-functional terminal end, all corresponding described switch of multi-functional terminal end described in every platform.
Whenever the RS-485 bus that conventional train uses can only there is a transmitter to send, and message transmission rate is lower, and Industrial Ethernet advantage is a lot, such as agreement versatility is very strong, speed is very fast, so the present invention's Ethernet instead of RS-485 bus.
Further technical scheme of the present invention is: described multi-functional terminal end comprises display screen, dial-up dish, microphone, indicator light, keyboard, full car broadcast key, bicycle broadcast key, described microphone is provided with driver's button, No. IP of described multi-functional terminal end identical with the numeral on described dial-up dish, described train central controller has fixing No. IP, set up TCP/IP by Ethernet between described multi-functional terminal end with described train central controller to be connected, described train central controller and described multi-functional terminal end are equipped with USB interface.
Described multi-functional terminal end is distributed in the correct position in train: the rows of car of standard motor train unit comprises 1 to 8 cars and has 8 joint compartments altogether, drivers' cab (1 car), machinist room (5 car), conductor's cubic (5 car) is each respectively arranges a terminal, other cars often save compartment and arrange a terminal.
According to compartment, phone place and installation site number, stir the dial-up dish of described 2, such as 5 car machinist used terminals are dialled is 51, and it is 52 that crew's phone is dialled.Each phone is according to dial-up dish currency, and certain transformational relation, fixes oneself IP and port, when making to call out mutually, can call out according to coach number and location number.
The rows of car of standard motor train unit only has 1 train central controller, and its IP address and port numbers are fixing.Each multi-functional terminal end is all connected on train central controller by Ethernet.Train central controller realizes the two priority classes of call in car.The communication making priority high can be low by the priority of carrying out communication phone on-hook by force.
Described train central controller is provided with multifunction vehicle bus interface, is connected with the Train Control of train by multifunction vehicle bus with management system.
Train central controller can obtain driver's positional information and inform multi-functional terminal end by Ethernet, makes multi-functional terminal end can call out driver by a key.
Train central controller obtains driver's positional information in the following manner: after powering on, after driver enters the drivers' cab of current train number train, can do sequence of operations and start train, this information can be detected by Train Control and management system, and then analyzes the position of driver.Train central controller realizes data interaction by multifunction vehicle bus interface and Train Control and management system, obtains this information.Then tell all multi-functional terminal ends by Ethernet, which multi-functional terminal end now use by driver.
When Ethernet is normal, broadcast system depends on the Ethernet command interaction between train central controller and multi-functional terminal end, when multi-functional terminal end finally will receive the Ethernet order that train central controller allows it to broadcast, just can go on the air.
Train central controller and each multi-functional terminal end are all connected in the enable holding wire broadcast enable line of broadcast.When occurring extreme case, netting twine is abnormal and when being detected by terminal, acquisition authority arranges this holding wire by multi-functional terminal end, and multi-functional terminal end will adopt independent of the other a set of logic outside Ethernet order, broadcast system still normally can be worked, realize the redundancy of broadcast capability.
The holding wire of UIC568 bus definition one call priority and communication channel, but the present invention utilizes train central controller to achieve the two priority classes of call in car, do not need to set up separately a root priority holding wire again, this makes the original signal priority line communication channel defined with original UIC568 that can be available form binary channels, provide full duplex communication function, simplify speech processing circuit simultaneously, make speech quality, convenience had and significantly promote.
Train central controller and multi-functional terminal end can be external to other equipment by USB interface and carry out system upgrade.On multi-functional terminal end each button be set to carry out various operation and bring conveniently.
Further technical scheme of the present invention is: described train central controller sends heartbeat data packets in real time by train industry ethernet, described multi-functional terminal end receives the rear of heartbeat data packets and sends heartbeat response bag to described train central controller, when described multi-functional terminal end detects that train industry ethernet occurs abnormal by described distressed packet, can regulate the level of described broadcast enable line.
Train central controller will send out heartbeat data packets periodically to each multi-functional terminal end, and the backward train central controller that each multi-functional terminal end receives rebound of making up one's mind should be wrapped.If multi-functional terminal end does not receive heartbeat data packets within a period of time, to attempt at set intervals reconnecting train central controller, bag is responded in the heartbeat that certain terminal confiscated by train central controller within the preset time, this terminal network can be pointed out abnormal, and staff can carry out fixed point maintenance according to prompting.
Further technical scheme of the present invention is: be provided with in the first segment compartment of train and final section compartment and reconnect gateway, the described gateway that reconnects is connected to train Ethernet by the described switch in compartment, place, train marshalling list can be reconnected by network address translation mode.
When organizing into groups heavily through transport battalion, the train central controller of two cars is hot standby each other, but the master slave mode that can not automatically switch in running.After train heavily joins, Train Control and management system can arrange and heavily join state, manually also can arrange and heavily join state.In system of the present invention, 1, respectively there is 1 pass of heavily networking in 8 joint compartments, and when train heavily joins, 2 gateways participating in heavily joining can obtain and heavily join state, produce information interaction, allow the communication system of two trains couple together.In the present system, specifically, the data that gateway mainly completes this car is transmitted by TCP mode carry out network address translation, are transferred to adjacent car gateway; Or the data that adjacent car gateway transmits are carried out network address translation, and be transferred to this vehicle device two functions.
The invention has the beneficial effects as follows: the present invention adopts Ethernet to receive and dispatch control information and data message, has done suitable optimal design, make main audio line, secondary tone frequency channel wire energy full duplex receiving and transmitting voice information based on 568 buses.Integrate and entirely arrange broadcast, bicycle broadcast, a key calling driver, full-duplex intercommunication function.And Redundancy Design is done to broadcast system, even if make Ethernet break, broadcast system also can normally use.In addition, system firmware is by Ethernet online upgrading.Whole system has that structure is simple, easy to use, diverse in function, the advantage such as reliable and stable.
Accompanying drawing explanation
Fig. 1 is the system block diagram that the embodiment of the present invention provides.
Fig. 2 is the connection diagram of the train central controller that the embodiment of the present invention provides.
Fig. 3 is the basic flow sheet that the multi-functional terminal end that provides of the embodiment of the present invention and train central controller use.
Fig. 4 is the flow chart of full row broadcast under the grid normal mode that provides of the embodiment of the present invention.
Fig. 5 is the flow chart of bicycle broadcast under the grid normal mode that provides of the embodiment of the present invention.
Fig. 6 is the flow chart that system that the embodiment of the present invention provides carries out full duplex intercommunication.
Fig. 7 is that the system that the embodiment of the present invention provides carries out the full flow chart arranging broadcast under Network Abnormal pattern.
Fig. 8 be system that the embodiment of the present invention provides carry out train heavily join after command stream schematic diagram.
Embodiment
Fig. 1 shows the system block diagram that the embodiment of the present invention provides.As can be seen from Figure 1 system comprises train central controller, multi-functional terminal end, interchanger, broadcast enable line, main audio line, secondary tone frequency channel wire and broadcast bus, described multi-functional terminal end is connected with train industry ethernet by described interchanger, described train central controller is connected with train industry ethernet by described interchanger, described multi-functional terminal end respectively with described broadcast enable line, main audio line, secondary tone frequency channel wire is connected with broadcast bus, described train central controller is connected with described broadcast enable line, described broadcast enable line has height, low two kinds of level, the busy state of the corresponding described broadcast bus of high level of described broadcast enable line, the idle condition of the corresponding described broadcast bus of low level that described broadcast is enable, described train central controller and described multi-functional terminal end can adjust the level state of broadcast enable line.
Can find out in Fig. 1 and occur altogether 8 switches, 9 multi-functional terminal ends, often save compartment and have a switch, except 5 compartments, other compartments are respectively provided with a multi-functional terminal end, and 5 compartments are because contain machinist room and conductor's cubic, so be provided with two multi-functional terminal ends, the switch digitized representation below coach number at switch place, multi-functional terminal end numeral below also represent the position in compartment residing for multi-functional terminal end; Also respectively be provided with a pass of heavily networking in No. 1 compartment and No. 8 compartments in figure, heavily networking is closed and is connected with train Ethernet by the switch in this section compartment.
Described system can complete and realize call and broadcasting for train two kinds of functions between train by a terminal simultaneously.Traditional UIC568 bus only has an intercommunication priority rigid line, this logic can only allow other intercommunication terminals know and be in engaged condition now, and then only has two logical process modes: the call before the call of dialling arbitrarily can interrupt or arbitrarily rear call of dialling are all because cannot be conversed by the line is busy; Traditional UIC568 bus only has a road intercommunication passage, can only realize half-duplex intercommunication.And train Multifunctional broadcasting telephone system provided by the invention has done suitable optimal design based on UIC568 bus, there are two independently tone frequency channel wires simultaneously, made telephonic communication become full duplex, improve speech quality.In addition, built the broadcasting command system of a redundancy by broadcast enable line, make when Ethernet disconnects for a certain reason, attendant still can pass through broadcast distribution message.
Train often saves compartment and at least comprises a described multi-functional terminal end, all corresponding described switch of multi-functional terminal end described in every platform.
Whenever the RS-485 bus that conventional train uses can only have a transmitter to send, and message transmission rate is lower, and Industrial Ethernet advantage is a lot, such as, the versatility that agreement is very strong, speed is very fast etc., so the present invention's Ethernet instead of RS-485 bus.Described Account Dept is deployed in 8 joint compartments of the rows of car of standard motor train unit, and multi-functional terminal end is distributed in each joint compartment, and the main object that uses has train operator, machinist and crew.All multi-functional terminal ends are all mounted in UIC568 bus.Train central controller is generally distributed in the 5th compartment, and it is connected by Ethernet with all multi-functional terminal ends.Under normal circumstances, train central controller controls broadcasts the height of level in enable line to Ethernet.In train enable line, the height of signal can indicate the busy-idle condition of current broadcast bus.
The connection diagram of the train central controller that Fig. 2 embodiment of the present invention provides.As can be seen from the figure the connected mode of each system and train central controller.As figure, train central controller is provided with touching display screen, the input of audio-video signal and touching signals can be carried out by this touching display screen, train central controller is connected with the Ethernet of train by switch, train central controller is connected with management system with Train Control by multi-purpose vehicle(MPV) bus, and in addition, train central controller is also connected with the UIC568 bus of train by broadcast enable line, train central controller is also provided with USB interface, can be connected with other external equipments.
Fig. 3 is the basic flow sheet that the multi-functional terminal end that provides of the embodiment of the present invention and train central controller use.System can carry out following steps in use:
1. staff adjusts dial-up dish according to the coach number at network equipment place and location number in advance, and train powers on, and multi-functional terminal end reads dial-up information, according to certain transformational relation, confirms No. IP and the port numbers of this equipment.No. IP of train central controller and port numbers are fixing.Like this, No. IP of all-network equipment and port numbers, all according to prior regulation, are fixed;
2. each multi-functional terminal end connects train central controller listening port, sets up with it TCP/IP and connects;
3. train central controller determines according to connection the IP whether terminal connected specifies, if detect that IP is abnormal or lack, described display screen provides prompting, and prompting staff goes corresponding terminal to check.The scope of examination comprises: dial-up dish correctness, and whether netting twine Lian Hao etc.;
If 4. the detection of the 3rd step is without any problem, namely all multi-functional terminal ends establish connection with train central controller all smoothly.Now, train central controller will send out heartbeat data packets periodically to each terminal, and the backward train central controller that each terminal receives rebound of making up one's mind should be wrapped.If terminal does not receive heartbeat data packets within a period of time, will attempt at set intervals reconnecting train central controller.Bag is responded in the heartbeat that certain terminal confiscated by train central controller within the preset time, and this terminal network can be pointed out abnormal.Staff can carry out fixed point maintenance according to prompting;
5. the different command sent according to multi-functional terminal end carries out different operating.
Fig. 4 is the flow chart of full row broadcast under the grid normal mode that provides of the embodiment of the present invention.
When train consist personnel have important message to need to carry out full row broadcast to passenger, multi-functional terminal end nearby can be selected to use this function, and without the need to going to studio, very convenient.
When " entirely arranging broadcast " button is pressed, whether this terminal first will detect broadcast enable line and be set high, if do not set high, represent that broadcast bus is idle, now this terminal can send full row broadcast request to train central controller, train central controller receives request, set high broadcast enable line, other multi-functional terminal ends temporarily cannot be broadcasted, now, this multi-functional terminal end this locality connection broadcast bus, makes the speech streaming of this multi-functional terminal end through broadcast bus and the final loud speaker by each compartment plays back.
When if " entirely arrange broadcast ", button is pressed, broadcast enable line is set high, and represent that broadcast bus is just busy, now this multi-functional terminal end initiatively will point out busy tone.
Fig. 5 is the flow chart of bicycle broadcast under the grid normal mode that provides of the embodiment of the present invention.
When train consist personnel need the passenger to a certain joint compartment to broadcast, multi-functional terminal end belonging to this car can be selected, use this function.
When " bicycle broadcast " button is pressed, this multi-functional terminal end can not be in a hurry by broadcast enable line detection broadcast bus is busy, if broadcast bus is not in a hurry, this multi-functional terminal end can send bicycle broadcast request to train central controller, train central controller receives request, set high broadcast enable line, other multi-functional terminal end temporarily cannot be broadcasted.Meanwhile, train central controller is according to the source device number sending request, learn it is which joint compartment needs broadcast, then by the communication with each compartment controller, make the compartment controller in other compartments control this compartment loud speaker not accessing broadcast bus, and remain the message play background music, automatic broadcasting etc. and reporting before; The loud speaker in the compartment of request bicycle broadcast is received on broadcast bus.
Now, train central controller is replied this multi-functional terminal end by Ethernet and " is allowed broadcast ", and after this terminal receives reply, broadcast bus is connected in multi-functional terminal end this locality, makes speech information flow through broadcast channel broadcasts bus, the final loud speaker arriving this compartment.Like this, the loud speaker in this compartment is only had to play the artificial broadcast message of broadcast bus.
Fig. 6 is the flow chart that system that the embodiment of the present invention provides carries out full duplex intercommunication.
There is a prioritization logic of conversing train central controller inside, and is driver-driver > driver-machinist > driver-crew > machinist-crew > crew-crew.
When preparing to call, described multi-functional terminal end can first be filed a request to train central controller, if train central controller is after prioritization logic judges, determines that current talking priority is the highest, this just can be allowed to take on the telephone.Then, the multi-functional terminal end on both sides respectively by oneself go out, enter speech circuit and receive accordingly on main audio line, secondary tone frequency channel wire, realize real-time full duplex intercommunication.
The communication that priority is high can be low by the priority of carrying out communication multi-functional terminal end on-hook by force; And any moment can only carry out communication between two multi-functional terminal ends.
Such as:: when machinist and crew converse, now another crew's terminal call driver intercommunication, machinist-the crew conversed can be conversed reset, the ring of called drivers' cab terminal is sounded, and called driver answers the communication of setting up between this crew.
After powering on, after driver enters the drivers' cab of current train number train, can do sequence of operations and start train, this information can be detected by Train Control and management system, and then analyzes the position of driver.Train central controller realizes data interaction by multifunction vehicle bus interface and Train Control and management system, obtains this information.Then tell all multi-functional terminal ends by Ethernet, which multi-functional terminal end now use by driver.
The multi-functional terminal end of drivers' cab, " calling driver " key is invalid, receiver prompting busy tone.
Other multi-functional terminal ends, crew presses " calling driver " key, this multi-functional terminal end can initiate the intercommunication to driver's multi-functional terminal end to the request of train central controller at once.Train central controller is after own priority Logic judgment, confirm that current call request is that priority is the highest, and after the busy phone of enforced reset low priority, just allow to carry out communication between these two multi-functional terminal ends, after two multi-functional terminal ends obtain permission, respectively by oneself go out, enter speech circuit and be connected to accordingly on main audio line, secondary tone frequency channel wire, realize real-time full duplex intercommunication.
Calling driver is a special case of full duplex intercommunication, so do not draw flow chart in addition.
Fig. 7 is that the system that the embodiment of the present invention provides carries out the full flow chart arranging broadcast under Network Abnormal pattern.
When a multi-functional terminal end detects that local ethernet connects extremely, " entirely arrange broadcast " in this locality if now detected key is pressed, whether this multi-functional terminal end first will detect broadcast enable line and be set high, if do not set high, represent that broadcast bus is idle, now this multi-functional terminal end sets high broadcast enable line, other multi-functional terminal end temporarily cannot be broadcasted, now, broadcast bus is connected in this multi-functional terminal end this locality, makes the speech information of this phone flow through broadcast bus and is finally played back by the loud speaker in each compartment.Work as off-the-air, this phone reduction broadcast enable line, and disconnect broadcast bus.
If when " full car broadcast " button is pressed, broadcast enable line is set high, and represent that broadcast bus is just busy, now this multi-functional terminal end initiatively will promote busy tone.
Fig. 8 be system that the embodiment of the present invention provides carry out train heavily join after command stream schematic diagram.
Standard motor train unit 1 row train comprises 8 joint compartments, allows to organize into groups the mode heavily joined and runs, wherein head heavily join and tail cabrage connection only for emergency relief, be not used in normal operation.During emergency relief, need ensure that public broadcasting normally works, other parts do not do requirement.Heavily connection is the heavily connection mode that uniquely may be used for normal operation end to end, in this case, requires to realize complete communication function.
When organizing into groups heavily through transport battalion, the train central controller of two cars is hot standby each other, but the master slave mode that can not automatically switch in running.After train heavily joins, Train Control and management system can arrange and heavily join state, manually also can arrange and heavily join state.
In system of the present invention, 1, respectively there is 1 pass of heavily networking in 8 compartments, and when train heavily joins, 2 that participate in heavily joining passes of heavily networking can obtain and heavily join state, produce information interaction, allow the communication system of two trains couple together.In the present system, specifically, gateway mainly completes:
1. this car is transmitted by TCP mode the data come and carry out network address translation, be transferred to adjacent car gateway;
2. the data that adjacent car gateway transmits are carried out network address translation, and be transferred to this vehicle device.
After the compartment 8 of such as train 1 and the compartment 1 of train 2 heavily join end to end, train 1 is attached most importance to and is joined prostatitis, i.e. 1 to 8 cars, train 2 is attached most importance to and is joined rank rear i.e. 9 to 16 cars, if 2 car multi-functional terminal end requests and 13 car multi-functional terminal ends are conversed, and the train central controller that Train Control and management system have arranged train 1 is initiate mode, the train central controller Hot Spare of train 2.Flow process is as follows: the switch 2 from train 1 is flow to the train central controller of train 1 by this request, train central controller judges that this request is as limit priority, send order again and " open the intercommunication of 13 cars ", this order stays the 8 car weight networkings through train 1 to close, the 1 car weight networking of having arrived train 2 is closed, gateway does corresponding network address translation, identifies 5 cars that 13 cars are exactly this car, then order is sent to 5 car multi-functional terminal ends of train 2.5 car multi-functional terminal ends of train 2 are received order and are replied, order and return to train central controller by former road, and 2 car multi-functional terminal end the other side that train central controller reinforms train 1 connect, and so latter two terminal is conversed.
The beneficial effect of the specific embodiment of the invention is that the present invention adopts Ethernet to receive and dispatch control information and data message, has done suitable optimal design, make main audio line, secondary tone frequency channel wire energy full duplex receiving and transmitting voice information based on UIC568 bus.Integrate and entirely arrange broadcast, bicycle broadcast, a key calling driver, full-duplex intercommunication function.And Redundancy Design is done to broadcast system, even if make Ethernet break, broadcast system also can normally use.In addition, system firmware is by Ethernet online upgrading.Whole system has that structure is simple, easy to use, diverse in function, the advantage such as reliable and stable.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a train multi-function telephones broadcast system, it is characterized in that: comprise train central controller, multi-functional terminal end, interchanger, broadcast enable line, main audio line, secondary tone frequency channel wire and broadcast bus, described multi-functional terminal end is connected with train industry ethernet by described interchanger, described train central controller is connected with train industry ethernet by described interchanger, described multi-functional terminal end respectively with described broadcast enable line, main audio line, secondary tone frequency channel wire is connected with broadcast bus, described train central controller is connected with described broadcast enable line, described broadcast enable line has height, low two kinds of level, the busy state of the corresponding described broadcast bus of high level of described broadcast enable line, the idle condition of the corresponding described broadcast bus of low level that described broadcast is enable, described train central controller and described multi-functional terminal end can adjust the level state of broadcast enable line.
2. train multi-function telephones broadcast system according to claim 1, is characterized in that: train often saves compartment and at least comprises a described multi-functional terminal end, all corresponding described switch of multi-functional terminal end described in every platform.
3. train multi-function telephones broadcast system according to claim 2, it is characterized in that: described multi-functional terminal end is provided with dial-up dish, described dial-up dish can be arranged described multi-functional terminal end No. IP, described train central controller has fixing No. IP, sets up TCP/IP be connected between described multi-functional terminal end with described train central controller by Ethernet.
4. train multi-function telephones broadcast system according to claim 3, is characterized in that: described multi-functional terminal end comprises display screen, microphone, indicator light, keyboard, full car broadcast key, bicycle broadcast key.
5. train multi-function telephones broadcast system according to claim 4, is characterized in that: described microphone is provided with driver's button.
6. train multi-function telephones broadcast system according to claim 5, is characterized in that: described train central controller and described multi-functional terminal end are equipped with USB interface.
7. train multi-function telephones broadcast system according to claim 6, is characterized in that: described train central controller is provided with multifunction vehicle bus interface, is connected with the Train Control of train by multifunction vehicle bus with management system.
8. according to described train multi-function telephones broadcast system arbitrary in claim 1 to 7, it is characterized in that: described train central controller sends heartbeat data packets in real time by train industry ethernet, described multi-functional terminal end receives the rear of heartbeat data packets and sends heartbeat response bag to described train central controller, when described multi-functional terminal end detects that train industry ethernet occurs abnormal by described heartbeat data packets, can regulate the level of described broadcast enable line.
9. according to described train multi-function telephones broadcast system arbitrary in claim 1 to 7, it is characterized in that: be provided with in the first segment compartment of train and final section compartment and reconnect gateway, the described gateway that reconnects is connected to train Ethernet by the described switch in compartment, place, train marshalling list can be reconnected by network address translation mode.
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| CN201510602745.XA CN105245302A (en) | 2015-09-21 | 2015-09-21 | Multifunctional telephone broadcast system for train |
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| CN108243042A (en) * | 2016-12-27 | 2018-07-03 | 比亚迪股份有限公司 | Configuration method, again networking pass, controller, compartment and train are closed in networking again |
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| CN108848176A (en) * | 2018-06-26 | 2018-11-20 | 中车青岛四方车辆研究所有限公司 | EMU Overpassing Platform by Using system, cross-platform passenger information communication system and method |
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| CN109808736A (en) * | 2019-02-19 | 2019-05-28 | 苏州长风航空电子有限公司 | A kind of system for more piece train again through transport battalion |
| CN109808736B (en) * | 2019-02-19 | 2021-03-26 | 苏州长风航空电子有限公司 | System for multi-section train reconnection operation |
| CN110049050A (en) * | 2019-04-22 | 2019-07-23 | 中国科学院计算机网络信息中心 | A kind of method and device of communication |
| CN110049050B (en) * | 2019-04-22 | 2021-03-19 | 中国科学院计算机网络信息中心 | Communication method and device |
| CN110392223A (en) * | 2019-08-05 | 2019-10-29 | 广东交通职业技术学院 | A method of it is conversed during the journey with designated user by earphone |
| CN111192382A (en) * | 2020-01-07 | 2020-05-22 | 宝鸡中车时代工程机械有限公司 | Access control system suitable for multi-section carriage reconnection |
| CN114650112A (en) * | 2020-12-17 | 2022-06-21 | 比亚迪股份有限公司 | Train broadcasting host, power amplifier, train broadcasting method and system |
| CN115440013A (en) * | 2022-08-26 | 2022-12-06 | 深圳市航盛轨道交通电子有限责任公司 | Alarm method, alarm device and rail vehicle alarm system |
| CN115440013B (en) * | 2022-08-26 | 2023-12-12 | 深圳市航盛轨道交通电子有限责任公司 | Alarm method, alarm device and rail vehicle alarm system |
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