CN202014347U - Railway wireless interphone - Google Patents
Railway wireless interphone Download PDFInfo
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- CN202014347U CN202014347U CN2011200183540U CN201120018354U CN202014347U CN 202014347 U CN202014347 U CN 202014347U CN 2011200183540 U CN2011200183540 U CN 2011200183540U CN 201120018354 U CN201120018354 U CN 201120018354U CN 202014347 U CN202014347 U CN 202014347U
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Abstract
The utility model discloses a railway wireless interphone which comprises a control center, a wireless transmitting circuit, a wireless receiving circuit, a voice input device, a voice output device, an ADC (Analogue-to-Digital Conversion) circuit, a DAC (Digital-to-Analogue Conversion) circuit, a memory cell, an instruction input device and a display unit, wherein, the wireless transmitting circuit and the wireless receiving circuit are both connected with the control center; the voice input device is connected with the control center through the ADC circuit and connected with the wireless transmitting circuit; the control center is connected with the wireless transmitting circuit and the voice output device through the DAC circuit; the control center adopts frequency shift keying modulation, cyclic redundancy check and forward error correction coding on the transfer of digital information; the voice output device is connected with the wireless receiving circuit and the control center; and the memory cell, the instruction input device and the display unit are all connected with the control center. The railway wireless interphone can be applied to emergency danger indication, and further performs the functions of call recording, danger indication information recording and danger indication information query.
Description
Technical field
The utility model relates to field of wireless communication devices, relates to a kind of railway wireless intercom in particular.
Background technology
When finding dangerous situation on the railway line, show that to train dangerous traditional approach is to adopt the artificial explosion type detonator of installing on rail, and rely on train to roll to produce blast, show the danger to locomotive by explosive sound.The installation explosion type detonator time is longer, shows that dangerous speed is slow.Along with the increase of train speed raising and vehicle density, this mode has been difficult to satisfy the safe driving needs, in case can not timely and effectively dangerous situation be circulated a notice of locomotive, will cause the accident, so there is potential safety hazard.
At the problems referred to above, there is the part wireless interspeaker through transforming on probation to show the danger in recent years to locomotive, show the slow-footed problem in danger with solution.But it still has following defective at least:
One, the mode of manually propagandaing directed to communicate to locomotive by wireless interspeaker is still adopted in the transmission of showing dangerous information, causes easily and misrepresents deliberately, fails to report.Need both sides to link up repeatedly in case information is unclear, directly influence engineer's judgement and processing;
Two, show that dangerous information can't write down, inquire about, show that like this issue of dangerous information does not just have trackability, be unfavorable for the railway operation safety management.
In view of this, the inventor has this case to produce at the above-mentioned defective further investigation of existing wireless interspeaker then.
The utility model content
The purpose of this utility model is to provide a kind of railway wireless intercom, can't play a role in promptly showing the danger to solve wireless interspeaker function singleness in the prior art, mistakes and omissions and the problem that can't carry out record queries easily.
In order to reach above-mentioned purpose, solution of the present utility model is:
A kind of railway wireless intercom wherein, comprises control centre, wireless transmission circuit, wireless receiving circuit, acoustic input dephonoprojectoscope, voice output, analog to digital conversion circuit, D/A converting circuit, memory cell, instruction inputting device and display unit; This wireless transmission circuit all directly links to each other with control centre with wireless receiving circuit and is controlled the opening and closing of this wireless transmission circuit and wireless receiving circuit by control centre; This acoustic input dephonoprojectoscope links to each other with control centre by analog to digital conversion circuit, and this acoustic input dephonoprojectoscope also directly links to each other with wireless transmission circuit; This control centre links to each other with voice output with wireless transmission circuit by D/A converting circuit and respectively with voice with show that dangerous information sends and plays, this control centre adopts frequency shift keying modulation, cyclic redundancy check (CRC) and forward error correction coding to the transmission of digital information; This voice output all links to each other with control centre with wireless receiving circuit; This memory cell, instruction inputting device, display unit all link to each other with control centre.
Further, this railway wireless intercom also comprises the real time clock circuit that links to each other with control centre.
Further, this railway wireless intercom also comprises the data communication interface that links to each other with control centre.
Further, this acoustic input dephonoprojectoscope is a microphone.
Further, this voice output comprises audio power amplifier circuit and the loudspeaker that link to each other with audio power amplifier circuit, and this audio power amplifier circuit all links to each other with control centre with wireless receiving circuit.
Further, this control centre is a single-chip microcomputer.
Further, this instruction inputting device is a keyboard.
Further, this display unit is a LCD.
After adopting said structure, a kind of railway wireless intercom that the utility model relates to, its by wireless transmission circuit with voice with show that dangerous message transmission gives locomotive, the voice signal that sends and receive then adopts modulus conversion technique to carry out digitized processing, speech data then is stored in the memory cell by control centre, concrete, pulse-width modulation digital-to-analogue conversion technology is adopted in the playback of voice and warning message, digital information transmit to adopt frequency shift keying modulation, cyclic redundancy check (CRC) and forward error correction coding, and this display unit then can indicated channel information and shown dangerous information.So the utility model integrates wireless interspeaker, wireless data transmission and multiplely shows dangerous function, and have simple and conveniently, can satisfy the demand of railway operation safety management preferably; Because this memory cell can be preserved communicating data and be shown dangerous information, have calling record thus, show the function of dangerous information record and inquiry, and then make the information issue have trackability, and improve the managerial skills of railway operation safety simultaneously.
Description of drawings
The schematic block circuit diagram of Fig. 1 a kind of railway wireless intercom for the utility model relates to.
Among the figure:
Railway wireless intercom 100
Control centre's 1 wireless transmission circuit 2
Wireless receiving circuit 3 acoustic input dephonoprojectoscopes 4
Loudspeaker 52 analog to digital conversion circuits 6
D/A converting circuit 7 memory cell 8
Real time clock circuit 11 data communication interfaces 12
Embodiment
In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.
As shown in Figure 1, a kind of railway wireless intercom 100 that relates to for the utility model shown in it comprises control centre 1, wireless transmission circuit 2, wireless receiving circuit 3, acoustic input dephonoprojectoscope 4, voice output 5, analog to digital conversion circuit 6, D/A converting circuit 7, memory cell 8, instruction inputting device 9 and display unit 10; Wherein:
This wireless transmission circuit 2 all directly links to each other with control centre 1 with wireless receiving circuit 3, and by the opening and closing of control centre 1 this wireless transmission circuit 2 of control and wireless receiving circuit 3, promptly the power supply of this wireless transmission circuit 2 and wireless receiving circuit 3 is 1 control of Be Controlled center;
This acoustic input dephonoprojectoscope 4 links to each other with control centre 1 by analog to digital conversion circuit 6, thereby can realize the input with voice messaging, and this acoustic input dephonoprojectoscope 4 also directly links to each other with wireless transmission circuit 2 simultaneously, thereby is convenient to the transmission of voice messaging;
This control centre 1 links to each other with voice output 5 with wireless transmission circuit 2 by D/A converting circuit 7 and respectively with voice with show that dangerous information sends and plays, concrete, it sends by wireless transmission circuit 2, do correction and play by voice output 5 simultaneously for the user, promptly allow the user can determine once more whether the content that sends is correct; Wherein, frequency shift keying modulation, cyclic redundancy check (CRC) and forward error correction coding are adopted in the transmission of this 1 pair of digital information of control centre, thereby can reduce probability of errors;
This voice output 5 all links to each other with control centre 1 with wireless receiving circuit 3, thereby can directly export the information of wireless receiving circuit 3; This memory cell 8, instruction inputting device 9, display unit 10 all link to each other with control centre 1, and then make control centre's 1 energy stored information, the reception external world instruct and display message.Concrete, the railway wireless intercom 100 that the utility model relates to adopts be the 400MHz frequency range frequency modulation wireless channel of railway wireless communication network specification requirement, promptly with its as voice with show dangerous transmission of Information channel; What this control centre 1 specifically adopted is single-chip microcomputer; What this acoustic input dephonoprojectoscope 4, instruction inputting device 9 and display unit 10 then adopted respectively is microphone, keyboard and LCD; 8 of this memory cell are FLASH ROM memory; This voice output 5 comprises audio power amplifier circuit 51 and the loudspeaker 52 that link to each other with audio power amplifier circuit 51, and this audio power amplifier circuit 51 all links to each other with control centre 1 with wireless receiving circuit 3.Preferably, this railway wireless intercom 100 also comprises the real time clock circuit 11 that links to each other with control centre 1, thereby can allow this display unit 10 can show the time in real time.And this railway wireless intercom 100 also comprises the data communication interface 12 that links to each other with control centre 1, it specifically can be RS-232C or usb communication interface, thereby make railway wireless intercom 100 that the utility model relates to can with computer 200 grades carry out interconnected, thereby play effects such as data backup.
Like this, the utility model its by wireless transmission circuit 2 with voice with show that dangerous message transmission gives locomotive, the voice signal that sends and receive then adopts modulus conversion technique to carry out digitized processing, speech data then is stored in the memory cell 8 by control centre 1, concrete, pulse-width modulation digital-to-analogue conversion technology is adopted in the playback of voice and warning message, digital information transmit to adopt frequency shift keying modulation, cyclic redundancy check (CRC) and forward error correction coding, this display unit 10 energy indicated channels information and show dangerous information.So the utility model integrates wireless interspeaker, wireless data transmission and multiplely shows dangerous function, and have simple and conveniently, can satisfy the demand of railway operation safety management preferably; Because this memory cell 8 can be preserved communicating data and be shown dangerous information, have calling record thus, show the function of dangerous information record and inquiry, and then make the information issue have trackability, and improve the managerial skills of railway operation safety simultaneously.
Every function of a kind of railway wireless intercom 100 that the utility model is related to is described in detail below:
One, wireless interspeaker function: by instruction inputting device 9 is that keyboard is selected communication channel, display unit 10 is that LCD then shows the receive channel parameter, automatically be set to accepting state, control centre 1 is that single-chip microcomputer detects wireless receiving circuit 3 noise signals, when signal to noise ratio reaches set threshold value, detect received infrasonic frequency signal, when signal is consistent with the value of setting with audio power amplifier circuit 51 power connections, loudspeaker 52 sounding.When the emission key in the keyboard (PTT) when pressing, single-chip microcomputer is connected the radio transmitter power supply, is in transmit status, sends by radio transmitter from the infrasonic frequency signaling that microphone and single-chip microcomputer produced, decontrol emission key (PTT) and finish process of transmitting, enter accepting state.Connect audio power amplifier circuit 51 or emission key (PTT) when pressing, liquid crystal display displays " REC ", start analog to digital conversion circuit 6, with 8kHz frequency real-time sampling voice signal and with in the data write storage unit 8, disconnection of audio power amplifier circuit 51 power supplys or emission key (PTT) stop sampling when decontroling and data write, and finishes recording.
Two, emergency alert function: " warning " key in the long keypad 3 seconds, enter the emergency alarm state, single-chip microcomputer is connected the radio transmitter power supply, close the receiving circuit power supply, be in transmit status, liquid crystal display displays " dangerous situation ", single-chip microcomputer reads the time in the real time clock circuit 11, in warning message write storage unit 8.Then the alarm voice data of storage in the reading cells 8 through D/A converting circuit 7 output analog voice signals, send by radio transmitter, connect audio power amplifier circuit 51 power supplys, and loudspeaker 52 send the warning message voice synchronously." warning " key in the long once more keypad 3 seconds, single-chip microcomputer disconnection of wireless radiating circuit power supply, audio power amplifier circuit 51 power supplys, stop alarm voice data read, digital-to-analogue conversion and voice broadcast, withdraw from the emergency alarm state, connect the receiving circuit power supply, be in accepting state, liquid crystal display displays receive channel parameter.
Three, intersection alarm function: " broadcasting " key in the long keypad 3 seconds, enter the road junction alarm condition, liquid crystal display displays " dAO ", wait for the road junction numbering that input is reported to the police, the user is the road junction numbering of 4 figure places to the maximum by the input of the numerical key in the keyboard, single-chip microcomputer is connected the radio transmitter power supply, be in transmit status, liquid crystal display displays " dangerous situation ", single-chip microcomputer reads the time in the real time clock circuit 11, in warning message write storage unit 8, follows the alarm voice data of storage in the reading cells 8, through D/A converting circuit 7 output analog voice signals, send by radio transmitter.Send 5 intersection alarm information continuously, withdraw from the emergency alarm state automatically, single-chip microcomputer disconnection of wireless radiating circuit power supply stops alarm voice data read and digital-to-analogue conversion, enters accepting state.
Four, report to the police in the highway section: " function " key in the keypad by " warning " key, promptly enters the electronic detonating cartridge pattern again, the last highway section protection information of reporting to the police of liquid crystal display displays, comprise type of alarm (construction or dangerous situation, single line/two-wire, up, descending, first milepost).Numerical key in the keypad is imported 4 milimeter numbers of first milepost, the liquid crystal display displays input digit, and loudspeaker 52 are reported these digital voice, and " kilometer " key in the keypad is confirmed the milimeter number of input.Numerical key in the keypad is imported 3 rice numbers of first milepost, the liquid crystal display displays input digit, and loudspeaker 52 are reported these digital voice, and " rice " key in the keypad is confirmed the rice number of input.Numerical key in the keypad is imported second milepost by the method for first milepost input again, if " monitoring " key in the keypad, then loudspeaker 52 are reported the highway section of being imported and protected warning message for checking.
The foregoing description and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present utility model to its suitable variation or modification of doing.
Claims (8)
1. railway wireless intercom, it is characterized in that, comprise control centre, wireless transmission circuit, wireless receiving circuit, acoustic input dephonoprojectoscope, voice output, analog to digital conversion circuit, D/A converting circuit, memory cell, instruction inputting device and display unit; This wireless transmission circuit all directly links to each other with control centre with wireless receiving circuit and is controlled the opening and closing of this wireless transmission circuit and wireless receiving circuit by control centre; This acoustic input dephonoprojectoscope links to each other with control centre by analog to digital conversion circuit, and this acoustic input dephonoprojectoscope also directly links to each other with wireless transmission circuit; This control centre links to each other with voice output with wireless transmission circuit by D/A converting circuit and respectively with voice with show that dangerous information sends and plays, this control centre adopts frequency shift keying modulation, cyclic redundancy check (CRC) and forward error correction coding to the transmission of digital information; This voice output all links to each other with control centre with wireless receiving circuit; This memory cell, instruction inputting device, display unit all link to each other with control centre.
2. a kind of railway wireless intercom as claimed in claim 1 is characterized in that this railway wireless intercom also comprises the real time clock circuit that links to each other with control centre.
3. a kind of railway wireless intercom as claimed in claim 1 is characterized in that this railway wireless intercom also comprises the data communication interface that links to each other with control centre.
4. a kind of railway wireless intercom as claimed in claim 1 is characterized in that this acoustic input dephonoprojectoscope is a microphone.
5. a kind of railway wireless intercom as claimed in claim 1 is characterized in that this voice output comprises audio power amplifier circuit and the loudspeaker that link to each other with audio power amplifier circuit, and this audio power amplifier circuit all links to each other with control centre with wireless receiving circuit.
6. a kind of railway wireless intercom as claimed in claim 1 is characterized in that this control centre is a single-chip microcomputer.
7. a kind of railway wireless intercom as claimed in claim 1 is characterized in that this instruction inputting device is a keyboard.
8. a kind of railway wireless intercom as claimed in claim 1 is characterized in that this display unit is a LCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200183540U CN202014347U (en) | 2011-01-20 | 2011-01-20 | Railway wireless interphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200183540U CN202014347U (en) | 2011-01-20 | 2011-01-20 | Railway wireless interphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202014347U true CN202014347U (en) | 2011-10-19 |
Family
ID=44784957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200183540U Expired - Fee Related CN202014347U (en) | 2011-01-20 | 2011-01-20 | Railway wireless interphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202014347U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769690A (en) * | 2012-07-30 | 2012-11-07 | 泉州市铁通电子设备有限公司 | Voice recorder of wireless mobile platform for railway work and electric services |
| CN107492378A (en) * | 2017-09-21 | 2017-12-19 | 西安蜂语信息科技有限公司 | The data processing method and device of intercom |
-
2011
- 2011-01-20 CN CN2011200183540U patent/CN202014347U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769690A (en) * | 2012-07-30 | 2012-11-07 | 泉州市铁通电子设备有限公司 | Voice recorder of wireless mobile platform for railway work and electric services |
| CN107492378A (en) * | 2017-09-21 | 2017-12-19 | 西安蜂语信息科技有限公司 | The data processing method and device of intercom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20140120 |