CN206611415U - A kind of multi-party full duplex intercom system of subway train - Google Patents
A kind of multi-party full duplex intercom system of subway train Download PDFInfo
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- CN206611415U CN206611415U CN201720275294.8U CN201720275294U CN206611415U CN 206611415 U CN206611415 U CN 206611415U CN 201720275294 U CN201720275294 U CN 201720275294U CN 206611415 U CN206611415 U CN 206611415U
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Abstract
The utility model is related to subway train half-duplex intercom system to the upgrading field of full duplex intercom system, the utility model full duplex intercom system has directly continued to use the train intercommunication bus of former half-duplex intercom system, by changing the signal type transmitted in train intercommunication bus, by the way of using train apparatus CAN communication bus in itself as new train communication bus, realize half-duplex intercom system to the upgrading of full duplex intercom system, realization of the present utility model realizes full-duplex intercommunication function without laying any transmission line in addition with minimum change.
Description
Technical field
The utility model is related to subway train half-duplex intercom system to the upgrading field of full duplex intercom system.
Background technology
Growing with urban track traffic industry, vehicle-mounted passenger information system equipment is also increasingly renovated, non-complete double
The information that the intercommunication function of work can be linked up, which increasingly seems, limits to and not enough, and then new subway full duplex intercommunication also just should
Transport and give birth to.
The nucleus equipment that intercommunication function equipment is linked up as driver in broadcasting equipment and each side, it is non-complete that subway train is used
The function that duplex intercommunicating function device has is driver by controlling on box panel function button to carry out between driver, driver
Half-duplex intercommunication between passenger.Such half-duplex intercommunication function was confined within the same time, has and only a side is permissible
Expression communication is carried out, a side can be only in the state listened in addition, and bipartite communication efficiency is reduced significantly.It is semiduplex right
The pattern of saying can not tackle the exchange of emergency case.
Full duplex intercommunication is functional except the institute that can realize original non-full duplex intercommunication, and intercommunication both sides can be free
Expression, it is not necessary to wait other side to express after release channel, can just initiate speech.Meanwhile, full duplex intercommunication can also be in two row
Subway train joins again after, two row trains totally four drivers' cabs are realized（Each train two ends is all respectively equipped with a drivers' cab）Reality
When full duplex intercommunication, really realize conference model.
As shown in Figure 1, 2, Fig. 1 is default conditions to the existing half-duplex intercom system of subway train, and Fig. 2 is intercommunication state, is
System includes A ends（Such as drivers' cab）Microprocessor controller, transceiver, B ends（Such as drivers' cab or guest room）Microprocessor controller, transmitting-receiving
Device, A ends microprocessor controller is connected with A ends transceiver, and B ends microprocessor controller is connected with B ends transceiver, the transceiver bag
Transmitters and receivers are included, the half-duplex intercom system also includes train intercommunication bus and state control line, and train intercommunication is total
Line is that two electric wires are constituted by a wire pair, and A ends microprocessor controller passes through state control line and B ends microprocessor controller phase
Even, A ends transceiver is connected by train intercommunication bus with B ends transceiver.
As shown in Fig. 2 A ends active pull-down state control line（Such as press button）, initiate intercommunication, A ends microprocessor controller
Receive and A ends transmitter access train intercommunication bus is controlled after signal, at B ends, B ends microprocessor controller judges A ends state, control
B end-receivers access train intercommunication bus, and now, A ends can talk to B ends.The speech of A ends terminates, release conditions control line, now
B ends can obtain speaking right by pull-down state control line.In this system, transmitted in train intercommunication bus for analog signal.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of in existing subway train half-duplex intercom system
On the basis of, the multi-party full duplex intercom system of multi-party full-duplex intercommunication function is realized with minimum change.
The utility model solves its technical problem by following technical solution：A kind of multi-party full duplex intercommunication system of subway train
System, including A ends：Microprocessor controller, transceiver, B ends：Connected on microprocessor controller, transceiver, the microprocessor controller
There are user interactive module, in addition to train intercommunication bus and train communication bus, it is characterised in that the train communication bus is adopted
With the CAN communication bus of train apparatus in itself, it is connected with the microprocessor controller described in train communication bus CAN filters
CAN communication bus two ends connect A end microprocessor controllers and the micro- place in B ends by the train communication bus CAN filters respectively
Controller is managed, the transceiver includes microphone, intercommunication module, amplifier, loudspeaker and train intercommunication bus CAN filters,
The microphone is connected with the intercommunication module, and the intercommunication module is connected by the amplifier with the loudspeaker, described
Train intercommunication bus CAN filters are connected with the intercommunication module, and the intercommunication module of respective end is connected with microprocessor controller, institute
State train intercommunication bus two ends and A end intercommunication modules and B ends intercommunication mould are connected by the train intercommunication bus CAN filters respectively
Block；
Microprocessor controller obtains the call demand of user by its user interactive module, then passes through the CAN communication
Bus sends calling synchronizing signal, and the microprocessor controller of other end corresponding address obtains the calling synchronizing signal, and responds
The calling synchronizing signal realizes that two ends are synchronous, after the synchronization of two ends, the audio analog signals that A ends transceiver receives its microphone
Data signal is converted into by its intercommunication module, B ends are then sent to by the train intercommunication bus, meanwhile, A ends transceiver
The data signal that B ends transceiver is sent is received by the train intercommunication bus, and by its intercommunication module by the numeral
Signal converted back into analog signal, then exported by its amplifier by its loudspeaker.
It is also associated with being also associated with reconnection communication bus CAN filters, the transceiver on the microprocessor controller
Join intercommunication bus CAN filters again, will pass through these interfaces, the full duplex intercom system on two row trains connected together,
Realize the session between different trains.
Beneficial effect：The utility model full duplex intercom system is transformed by existing half-duplex intercom system, Quan Shuan
Work intercom system has directly continued to use the train intercommunication bus of former half-duplex intercom system, and train communication bus is then directly employed
The CAN communication bus of train apparatus in itself, so the upgrading without laying any transmission line in addition, is realized with minimum change
Full-duplex intercommunication function.
Brief description of the drawings
Fig. 1 is the schematic diagram one of half-duplex intercom system（Default conditions）；
Fig. 2 is the schematic diagram two of half-duplex intercom system（Intercommunication state）；
Fig. 3 is the theory diagram of the transceiver of full duplex intercom system；
Fig. 4 is the connection diagram of their full duplex intercom system two row trains join again after.
Embodiment
The two ends of subway train are respectively equipped with a drivers' cab.Below with the full duplex intercommunication between drivers' cab and drivers' cab
Exemplified by system, the utility model is described in further detail.
Drivers' cab A has microprocessor controller, as shown in figure 3, the user such as microprocessor controller connection button, display screen hands over
Mutual module, microprocessor controller is the intrinsic device of train.Microprocessor controller is also associated with reconnection communication bus CAN filters
I.e. CAN filters 1 and train communication bus CAN filters are CAN filters 2, and CAN filters 1 are total for connecting reconnection communication
Line, CAN filters 2 are used to connect train communication bus.
Drivers' cab A also has transceiver, as shown in figure 3, transceiver has microphone, intercommunication module, amplifier, raised one's voice
Device, again connection intercommunication bus CAN filters are CAN filters 3 and train intercommunication bus CAN filters i.e. CAN filters 4.Mike
Wind is connected with intercommunication module, and intercommunication module is connected by amplifier with loudspeaker, CAN filters 3 and CAN filters 4 respectively with
Intercommunication module is connected.CAN filters 3 are used to connect joins intercommunication bus again, and CAN filters 4 are used to connect train intercommunication bus.
Configuration of the full duplex intercom system at drivers' cab B ends is identical with drivers' cab A ends.
Full duplex intercom system also includes train intercommunication bus and train communication bus.Train intercommunication bus connects two drivers
The transceiver of room, train communication bus connects the microprocessor controller of two drivers' cabs.
Train intercommunication bus is made up of a wire pair, and the train intercommunication of half-duplex intercom system is total before directly having continued to use
Line, the signal simply transmitted thereon becomes present data signal by analog signal before.Because, multiple simulation letters
Number a transmission channel is shared, signal can be caused to eliminate, distortion, and data signal can then be realized in same transmission channel
Transmitted in both directions, in consideration of it, changing the type of the signal transmitted in existing train intercommunication bus, you can not setting up any circuit
In the case of, realize the upgrading by half-duplex to full duplex.
Train communication bus uses the CAN communication bus of train apparatus in itself, passes through the synchronous letter of CAN transmission calling
Number, with higher reliability, operability is more convenient.
The communication process of the utility model full duplex intercom system is as follows：
After pressing intercom push key at drivers' cab A ends, the end microprocessor controller obtains user by its user interactive module
Call demand, calling synchronizing signal is then sent by CAN communication bus, the microprocessor control of drivers' cab B ends corresponding address
Device obtains the calling synchronizing signal, and responds the calling synchronizing signal and realize that two ends are synchronous.After the synchronization of two ends, the transmitting-receiving of A ends
The audio analog signals that device receives its microphone are converted into data signal by its intercommunication module, then pass through the train pair
Say that bus is sent to B ends, B ends transceiver is received after the data signal, turned the data signal by its intercommunication module
Analog signal is gained, then is exported by its amplifier by its loudspeaker；Meanwhile, the sound that B ends transceiver receives its microphone
Frequency analog signal is converted into data signal by its intercommunication module, is then sent to A ends, A ends by the train intercommunication bus
Transceiver is received after the data signal, by its intercommunication module by the data signal converted back into analog signal, then is put by it
Big device is exported by its loudspeaker.
The utility model modulus/digital-to-analogue conversion is completed by intercommunication module.Intercommunication module is Purchased Item.It, which is used to compress, simulates
Signal, is converted into data signal and is sent to train intercommunication bus, and the transceiver of corresponding address can connect in train intercommunication bus
Audio analog signals are converted back by corresponding data signal, then by the intercommunication module at the end, then through amplifier by raising one's voice
Device is exported.
The multi-party full duplex intercom system of the utility model subway train is except that can realize traditional drivers' cab and drivers' cab pair
Say, outside the urgent intercommunication of drivers' cab and guest room, after two row trains join again, moreover it is possible to realize the complete double of four drivers' cabs join again after
Work intercommunication.
As shown in figure 4, two row trains are connected by joining intercommunication bus and reconnection communication bus again, in the case,
Intercommunication is initiated in train 1-1 positions, and data signal can upload to train intercommunication bus, after train 1-2 positions are received, data point two-way
Processing：Local broadcasting is received all the way；Another road is forwarded to connection intercommunication bus again.Audio signal is through overweight intercommunication bus, quilt
Train 2-1 position acquisitions, equally point two-way processing：Local broadcasting is received all the way；Another road is forwarded to train intercommunication bus.Such as
This, audio signal eventually arrives at train 2-2 positions.
The utility model full duplex intercom system, is greatly improved subway train drivers' cab and drivers' cab, drivers' cab and visitor
Communication efficiency between room and again connection next two columns train.The utility model full duplex intercom system continues to use former half-duplex intercommunication system
The train intercommunication bus of system, train communication bus directly employs the CAN communication bus of train apparatus in itself, so train is by original
Half-duplex intercom system upgrades to full duplex intercom system of the present utility model, and construction volume is small, and short construction period can be greatly reduced
Influence to train operation.The utility model uses modularized design, can facilitate plant maintenance.
Claims (2)
1. a kind of multi-party full duplex intercom system of subway train, including A ends：Microprocessor controller, transceiver, B ends：Microprocessor control
User interactive module, in addition to train intercommunication bus and train communication are connected with device processed, transceiver, the microprocessor controller
Bus, it is characterised in that the train communication bus uses the CAN communication bus of train apparatus in itself, the microprocessor control
CAN communication bus two ends described in train communication bus CAN filters are connected with device respectively by the train communication bus CAN
Filter connects A end microprocessor controllers and B ends microprocessor controller, and the transceiver includes microphone, intercommunication module, amplification
Device, loudspeaker and train intercommunication bus CAN filters, the microphone are connected with the intercommunication module, and the intercommunication module is led to
Cross the amplifier with the loudspeaker to be connected, the train intercommunication bus CAN filters are connected with the intercommunication module, accordingly
The intercommunication module at end is connected with microprocessor controller, and the train intercommunication bus two ends pass through the train intercommunication bus respectively
CAN filters connect A end intercommunication modules and B ends intercommunication module；
Microprocessor controller obtains the call demand of user by its user interactive module, then passes through the CAN communication bus
Calling synchronizing signal is sent, the microprocessor controller of other end corresponding address obtains the calling synchronizing signal, and responds described
Calling synchronizing signal realizes that two ends are synchronous, and after the synchronization of two ends, A ends transceiver passes through the audio analog signals that its microphone is received
Its intercommunication module is converted into data signal, is then sent to B ends by the train intercommunication bus, meanwhile, A ends transceiver passes through
The train intercommunication bus receives the data signal that B ends transceiver is sent, and by its intercommunication module by the data signal
Converted back into analog signal, then exported by its amplifier by its loudspeaker.
2. the multi-party full duplex intercom system of subway train according to claim 1, it is characterised in that the microprocessor control
It is also associated with being also associated with joining intercommunication bus CAN filters again on reconnection communication bus CAN filters, the transceiver on device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720275294.8U CN206611415U (en) | 2017-03-21 | 2017-03-21 | A kind of multi-party full duplex intercom system of subway train |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720275294.8U CN206611415U (en) | 2017-03-21 | 2017-03-21 | A kind of multi-party full duplex intercom system of subway train |
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| CN206611415U true CN206611415U (en) | 2017-11-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947911A (en) * | 2017-12-29 | 2018-04-20 | 数源科技股份有限公司 | The communicator and communication means of half-duplex simulation full duplex are realized based on host computer RS485 communications |
| CN109774742A (en) * | 2018-12-28 | 2019-05-21 | 上海鸣啸信息科技股份有限公司 | A kind of broadcasting for train company extension controller based on Linux platform |
-
2017
- 2017-03-21 CN CN201720275294.8U patent/CN206611415U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947911A (en) * | 2017-12-29 | 2018-04-20 | 数源科技股份有限公司 | The communicator and communication means of half-duplex simulation full duplex are realized based on host computer RS485 communications |
| CN107947911B (en) * | 2017-12-29 | 2023-12-01 | 数源科技股份有限公司 | Communication device and communication method for realizing half-duplex analog full duplex based on upper computer RS485 communication |
| CN109774742A (en) * | 2018-12-28 | 2019-05-21 | 上海鸣啸信息科技股份有限公司 | A kind of broadcasting for train company extension controller based on Linux platform |
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