CN206226638U - A kind of announcement broadcasting apparatus and system for aircraft - Google Patents
A kind of announcement broadcasting apparatus and system for aircraft Download PDFInfo
- Publication number
- CN206226638U CN206226638U CN201621087452.9U CN201621087452U CN206226638U CN 206226638 U CN206226638 U CN 206226638U CN 201621087452 U CN201621087452 U CN 201621087452U CN 206226638 U CN206226638 U CN 206226638U
- Authority
- CN
- China
- Prior art keywords
- pin
- resistance
- over circuit
- signal acquisition
- announcement broadcasting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
- H04H20/62—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast for transportation systems, e.g. in vehicles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Direct Current Feeding And Distribution (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
The utility model provides a kind of announcement broadcasting apparatus and system for aircraft, and the announcement broadcasting device includes：Signal input port, ON-OFF control circuit, signal acquisition change-over circuit and output interface, the signal input port is connected to the signal acquisition change-over circuit by ON-OFF control circuit, and the signal acquisition change-over circuit is by the externally connected server of output interface.When the announcement broadcasting signal of aircraft, by ON-OFF control circuit so that the transmitting terminal pin of the signal acquisition change-over circuit and receiving terminal pin short circuit, and then realize that serial communication data switch to usb data, enable that the server of outside is realized from transmission-receiving function by signal acquisition change-over circuit, the utility model can effectively reduce the occupancy of cpu resource and interface, a USB interface is only needed to be capable of achieving, without externally fed in data procedures are received, and the elements such as single-chip microcomputer need not be increased and then volume can be accomplished very little, fault rate is low.
Description
Technical field
The utility model is related to a kind of broadcaster, more particularly to a kind of announcement broadcasting device for aircraft, and is related to
This is included for the announcement broadcasting system of the announcement broadcasting device of aircraft.
Background technology
It is the abbreviation for the passenger's notice in aircraft with broadcast, i.e. Passenger for the announcement broadcasting of aircraft
Announcement；In actual applications, it is desirable to which main cabin can be made corresponding anti-to the announcement broadcasting signal for aircraft in time
Should, that is to say, that when PA signals are received, show that flight crew needs to be broadcasted, then be accomplished by the current amusement of control
Terminal mute, and control screen prompt broadcast message；And in the prior art, in order to realize scheme that this purpose taken excessively
Complexity is, it is necessary to take more cpu resource and interface, volume is big, and fault rate is higher.
The content of the invention
Technical problem to be solved in the utility model is to need offer one kind effectively to reduce cpu resource to take and connect
Mouthful, reduce its volume and reduce the announcement broadcasting device for aircraft of fault rate, and offer includes this for the logical of aircraft
Accuse the announcement broadcasting system of broadcaster.
In this regard, the utility model provides a kind of announcement broadcasting device for aircraft, including：Signal input port, switch
Control circuit, signal acquisition change-over circuit and output interface, the signal input port are connected to by ON-OFF control circuit
The signal acquisition change-over circuit, the signal acquisition change-over circuit is by the externally connected server of output interface.
Further improvement of the utility model is that the ON-OFF control circuit includes relay K1, the relay K1
Inside coil pin be connected with the signal input port and upper potential end respectively, the inner contact pipe of the relay K1
Pin is connected with the transmitting terminal pin and receiving terminal pin of the signal acquisition change-over circuit respectively.
Further improvement of the utility model is that the ON-OFF control circuit also includes diode D1, the diode
The anode of D1 is connected with the signal input port, and the negative electrode of the diode D1 is connected with upper potential end.
Further improvement of the utility model is that the signal acquisition change-over circuit is serial port transform USB module.
Further improvement of the utility model is that the signal acquisition change-over circuit includes conversion chip U2, resistance R10
With resistance R11, the RS232 power supplies pin of the conversion chip U2 respectively with one end of the resistance R10 and resistance R11
One end is connected, and the other end of the resistance R10 is connected with the transmitting terminal pin of the signal acquisition change-over circuit, the electricity
The other end for hindering R11 is connected with the receiving terminal pin of the signal acquisition change-over circuit.
Further improvement of the utility model is, the RS232 power supplies pin of the conversion chip U2 with described turn
The USB transceiver 3.3V power pins for changing chip U2 are connected.
Further improvement of the utility model is that the signal acquisition change-over circuit also includes electric capacity C29 and electric capacity
One end ground connection of C30, the electric capacity C29, the other end of the electric capacity C29 respectively with the power pin of the conversion chip U2 and
The power pin of the output interface is connected；The electric capacity C30 one end ground connection, the other end of the electric capacity C30 with it is described
The USB transceiver 3.3V power pins of conversion chip U2 are connected.
Further improvement of the utility model is that the signal acquisition change-over circuit also includes resistance R12, the and of resistance 13
Resistance R14, one end of the resistance R12 is connected with the USB transceiver 3.3V power pins of the conversion chip U2, the electricity
The one end for hindering R14 is connected with the DP data pins of the conversion chip U2, the other end of the resistance R12 and resistance R14's
The other end is connected with the first usb data pin of the output interface；One end of the resistance R13 and the conversion chip
The DM data pins of U2 are connected, and the other end of the resistance R13 is connected with the second usb data pin of the output interface
Connect.
Further improvement of the utility model is that the power supply ground pin and test pattern of the conversion chip U2 set pipe
Pin is grounded.
The utility model also provides a kind of announcement broadcasting system for aircraft, and include is used for aircraft as described above
Announcement broadcasting device.
Compared with prior art, the beneficial effects of the utility model are：When the announcement broadcasting signal of aircraft, by opening
Close control circuit and cause the transmitting terminal pin and receiving terminal pin short circuit of the signal acquisition change-over circuit, and then realize that serial ports leads to
News data switch to usb data so that outside server can be realized from transmission-receiving function by signal acquisition change-over circuit, to control
Recreation terminal processed is Jing Yin and provides hardware foundation by screen prompt broadcast message, and the utility model can effectively reduce CPU moneys
Source and the occupancy of interface, it is only necessary to which a USB interface is to be capable of achieving, without externally fed in data procedures are received, and need not
Increase the elements such as single-chip microcomputer and then volume can be accomplished very little, fault rate is low.
Brief description of the drawings
Fig. 1 is a kind of modular structure schematic diagram of embodiment of the utility model；
Fig. 2 is a kind of circuit theory diagrams of embodiment of the utility model.
Specific embodiment
Below in conjunction with the accompanying drawings, preferably embodiment of the present utility model is described in further detail.
As depicted in figs. 1 and 2, this example provides a kind of announcement broadcasting device for aircraft, including：Signal input port 1,
ON-OFF control circuit 2, signal acquisition change-over circuit 3 and output interface 4, the signal input port 1 is by switching control electricity
Road 2 is connected to the signal acquisition change-over circuit 3, and the signal acquisition change-over circuit 3 is externally connected by output interface 4
Server.The signal input port 1 is announcement broadcasting signal incoming end, and the output interface 4 is preferably four road USB line roads and connects
Mouthful.
As shown in Fig. 2 ON-OFF control circuit 2 described in this example includes relay K1, the Inside coil pipe of the relay K1
Pin is connected with the signal input port 1 and upper potential end respectively, the inner contact pin of the relay K1 respectively with institute
The transmitting terminal pin for stating signal acquisition change-over circuit 3 is connected with receiving terminal pin.ON-OFF control circuit 2 also includes described in this example
Diode D1, the anode of the diode D1 is connected with the signal input port 1, negative electrode and the upper electricity of the diode D1
Position end is connected, and the upper potential end is preferably 12V power supplys.
Signal acquisition change-over circuit 3 described in this example is serial port transform USB module, is particularly preferred as TTL serial port transform USB modules.
Serial port transform USB module of the signal acquisition change-over circuit 3 preferably with PL2303HXD chips as core, also referred to as serial ports USB turns
Parallel operation, realizes the design of PA modules, i.e. the announcement broadcasting module of aircraft, realizes the announcement broadcasting function of aircraft（PA functions）.
As shown in Fig. 2 signal acquisition change-over circuit 3 described in this example includes conversion chip U2, resistance R10 and resistance R11, institute
State the RS232 power supply pins of conversion chip U2（Pin 4）Respectively with one end and one end of resistance R11 of the resistance R10
It is connected, the transmitting terminal pin of the other end of the resistance R10 and the signal acquisition change-over circuit 3（PL2303HXD chips
Pin 1）It is connected, the receiving terminal pin of the other end of the resistance R11 and the signal acquisition change-over circuit 3（PL2303HXD
The pin 5 of chip）It is connected.
As shown in Fig. 2 the RS232 power supply pins of the conversion chip U2（Pin 4）With the conversion chip U2's
USB transceiver 3.3V power pins（Pin 17）It is connected；The signal acquisition change-over circuit 3 also includes electric capacity C29 and electric capacity
One end ground connection of C30, the electric capacity C29, the other end of the electric capacity C29 respectively with the power pin of the conversion chip U2
（Pin 20）Power pin with the output interface is connected；One end ground connection of the electric capacity C30, the electric capacity C30's is another
The USB transceiver 3.3V power pins of one end and the conversion chip U2（Pin 17）It is connected.
As shown in Fig. 2 the signal acquisition change-over circuit 3 also includes resistance R12, resistance 13 and resistance R14, the resistance
The USB transceiver 3.3V power pins of one end of R12 and the conversion chip U2（Pin 17）It is connected, the resistance R14's
One end is connected with the DP data pins of the conversion chip U2, and the DP data pins of the conversion chip U2 are used to connect USB
The D+ data wires of interface（Green）Pin, i.e., the DP data pins be USB DPLUS signal inputs/output pin；The electricity
The other end of the other end and resistance R14 that hinder R12 is connected with the first usb data pin of the output interface 4, described defeated
First usb data pin of outgoing interface 4 is the D+ data pins of USB interface（Green）；One end of the resistance R13 with described turn
The DM data pins for changing chip U2 are connected, and the DM data pins of the conversion chip U2 are the D- numbers for connecting USB interface
According to line（White）Pin, i.e., the DM data pins be USB DMINUS signal inputs/output pin；The resistance R13's is another
One end is connected with the second usb data pin of the output interface 4, and the second usb data pin of the output interface 4 is
The D- data pins of USB interface（White）.That is, output interface 4 described in this example is USB interface.
As shown in Fig. 2 the power supply ground pin and test pattern of conversion chip U2 described in this example set pin ground connection, described turn
The power supply ground pin for changing chip U2 preferably includes the pin 18 of PL2303HXD chips, pin 21, and pin 25；The conversion core
The test pattern of piece U2 sets the pin 26 that pin is preferably PL2303HXD chips, for realizing that PLL test patterns are set.
This example also provides a kind of announcement broadcasting system for aircraft, includes the notice for being used for aircraft as described above wide
Broadcasting device.The announcement broadcasting system also includes server, and the server changes electricity by USB port with the signal acquisition
Road 3 is connected.
The operation principle of this example is as follows：First, when announcement broadcasting signal is produced on aircraft, that is, when producing PA signals, PA
Signal causes the line conduction of the relay K1 of ON-OFF control circuit 2 after accessing, by the transmission of the signal acquisition change-over circuit 3
End pipe pin and receiving terminal pin short circuit；And the USB port of signal acquisition change-over circuit 3 is connected with the USB port of server, by taking
Business device passes through USB port for signal acquisition change-over circuit 3 is powered and communicated, while server is ceaselessly passing through USB port
Data are sent to signal acquisition change-over circuit 3；When the PA signals for producing cause that the transmission of signal acquisition change-over circuit 3 passes through end pipe
After pin and receiving terminal pin short circuit, the signal that server sends is understood oneself and is received by signal acquisition change-over circuit, i.e. PA signals
Cause that server is realized from receiving and dispatching, when server finds oneself to receive the information for oneself sending by signal acquisition change-over circuit 3
When, it is possible to it is determined with the generation of PA signals；Server internal has a script running always, scans each port, works as detection
When having the content for receiving and oneself sending, a file will be formed and be placed in the file of system fixation, the control end of server,
Such as the file that its page end is formed in scanning system glue file folder always, if file is arrived in scanning, other are stopped at once and is entered
Capable action and sound, then recall the page and sound for needing to play, a series of this function of being achieved that PA；Finally, when
After PA blackouts, relay K1 can disconnect, between the transmitting terminal pin and receiving terminal pin of the signal acquisition change-over circuit 3
Short circuit can also disconnect, at this time script scans are less than the data for sending, and the file that can be generated in file is deleted,
Server scanning will withdraw from the content called less than file, import the original action for carrying out.More than, that is, realize a PA letter
Number collection and treatment, complete the notice and broadcast of aircraft.
This example causes the signal acquisition change-over circuit 3 when the announcement broadcasting signal of aircraft by ON-OFF control circuit 2
Transmitting terminal pin and receiving terminal pin short circuit, and then realize that serial communication data switch to usb data so that outside server
Can be realized from transmission-receiving function by signal acquisition change-over circuit 3, to control recreation terminal it is Jing Yin and by screen prompt broadcast
Information provides hardware foundation, and this example can effectively reduce the occupancy of cpu resource and interface, it is only necessary to which a USB interface can be real
It is existing, without externally fed in data procedures are received, and the elements such as single-chip microcomputer need not be increased and then volume can be accomplished very little,
Fault rate is low.
The specific embodiment of the above is better embodiment of the present utility model, and it is new not to limit this practicality with this
The specific implementation scope of type, scope of the present utility model includes being not limited to this specific embodiment, all according to the utility model
Shape, the equivalence changes made of structure in protection domain of the present utility model.
Claims (10)
1. a kind of announcement broadcasting device for aircraft, it is characterised in that including：Signal input port, ON-OFF control circuit, letter
Number collection change-over circuit and output interface, the signal input port are connected to the signal acquisition by ON-OFF control circuit
Change-over circuit, the signal acquisition change-over circuit is by the externally connected server of output interface.
2. the announcement broadcasting device for aircraft according to claim 1, it is characterised in that the ON-OFF control circuit bag
The Inside coil pin for including relay K1, the relay K1 is connected with the signal input port and upper potential end respectively,
The inner contact pin of the relay K1 respectively with the transmitting terminal pin and receiving terminal pin of the signal acquisition change-over circuit
It is connected.
3. the announcement broadcasting device for aircraft according to claim 2, it is characterised in that the ON-OFF control circuit is also
Including diode D1, the anode of the diode D1 is connected with the signal input port, the negative electrode of the diode D1 with
Upper potential end is connected.
4. the announcement broadcasting device for aircraft according to claims 1 to 3 any one, it is characterised in that the letter
Number collection change-over circuit is serial port transform USB module.
5. the announcement broadcasting device for aircraft according to claims 1 to 3 any one, it is characterised in that the letter
Number collection change-over circuit includes the RS232 power supply pipes of conversion chip U2, resistance R10 and resistance R11, the conversion chip U2
Pin is connected with one end of the resistance R10 and one end of resistance R11 respectively, the other end and the signal of the resistance R10
The transmitting terminal pin for gathering change-over circuit is connected, the other end of the resistance R11 and connecing for the signal acquisition change-over circuit
Receiving end pin is connected.
6. the announcement broadcasting device for aircraft according to claim 5, it is characterised in that the conversion chip U2's
RS232 power supplies pin is connected with the USB transceiver 3.3V power pins of the conversion chip U2.
7. the announcement broadcasting device for aircraft according to claim 5, it is characterised in that the signal acquisition conversion electricity
Road also includes one end ground connection of electric capacity C29 and electric capacity C30, the electric capacity C29, the other end of the electric capacity C29 respectively with it is described
The power pin of conversion chip U2 is connected with the power pin of the output interface；One end ground connection of the electric capacity C30 is described
The other end of electric capacity C30 is connected with the USB transceiver 3.3V power pins of the conversion chip U2.
8. the announcement broadcasting device for aircraft according to claim 5, it is characterised in that the signal acquisition conversion electricity
Road also includes resistance R12, resistance 13 and resistance R14, the USB transceiver of one end of the resistance R12 and the conversion chip U2
3.3V power pins are connected, and one end of the resistance R14 is connected with the DP data pins of the conversion chip U2, the electricity
The other end of the other end and resistance R14 that hinder R12 is connected with the first usb data pin of the output interface；The electricity
The one end for hindering R13 is connected with the DM data pins of the conversion chip U2, and the other end of the resistance R13 connects with the output
Second usb data pin of mouth is connected.
9. the announcement broadcasting device for aircraft according to claim 5, it is characterised in that the electricity of the conversion chip U2
Source ground pin and test pattern set pin ground connection.
10. a kind of announcement broadcasting system for aircraft, it is characterised in that include as described in claim 1 to 9 any one
The announcement broadcasting device for aircraft.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621087452.9U CN206226638U (en) | 2016-09-28 | 2016-09-28 | A kind of announcement broadcasting apparatus and system for aircraft |
| PCT/CN2017/084045 WO2018058961A1 (en) | 2016-09-28 | 2017-05-12 | Announcement broadcast apparatus and system for aircraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621087452.9U CN206226638U (en) | 2016-09-28 | 2016-09-28 | A kind of announcement broadcasting apparatus and system for aircraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206226638U true CN206226638U (en) | 2017-06-06 |
Family
ID=58783088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621087452.9U Expired - Fee Related CN206226638U (en) | 2016-09-28 | 2016-09-28 | A kind of announcement broadcasting apparatus and system for aircraft |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN206226638U (en) |
| WO (1) | WO2018058961A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108762461A (en) * | 2018-08-01 | 2018-11-06 | 郑州源创智控有限公司 | The USB power supply communication circuits of host are detected for grain feelings of powering |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012202232A1 (en) * | 2012-02-14 | 2013-08-14 | Lufthansa Systems Ag | Method for making announcements in a means of transport |
| US8621527B2 (en) * | 2012-05-04 | 2013-12-31 | Thales Avionics, Inc. | Aircraft in-flight entertainment system with robust daisy-chained network |
| CN203691425U (en) * | 2013-12-30 | 2014-07-02 | 易程（苏州）智能系统有限公司 | Novel passenger alarm |
| CN204740457U (en) * | 2015-04-29 | 2015-11-04 | 北京电子科技学院 | Serial signal collection system |
-
2016
- 2016-09-28 CN CN201621087452.9U patent/CN206226638U/en not_active Expired - Fee Related
-
2017
- 2017-05-12 WO PCT/CN2017/084045 patent/WO2018058961A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108762461A (en) * | 2018-08-01 | 2018-11-06 | 郑州源创智控有限公司 | The USB power supply communication circuits of host are detected for grain feelings of powering |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018058961A1 (en) | 2018-04-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 Termination date: 20190928 |