CN201533398U - Broadcasting system of communication and transportation equipment - Google Patents
Broadcasting system of communication and transportation equipment Download PDFInfo
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- CN201533398U CN201533398U CN2010201210979U CN201020121097U CN201533398U CN 201533398 U CN201533398 U CN 201533398U CN 2010201210979 U CN2010201210979 U CN 2010201210979U CN 201020121097 U CN201020121097 U CN 201020121097U CN 201533398 U CN201533398 U CN 201533398U
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Abstract
The utility model provides a broadcasting system of communication and transportation equipment, which comprises at least one pickup, a controller, a power amplifier and a loudspeaker, wherein the pickup is mounted in a carriage of the communication and transportation equipment to pick up background noise in the carriage of the communication and transportation equipment, the controller receives audio signals required to be broadcasted and generated by a broadcasting audio generation device of the communication and transportation equipment and determines amplification factors of the audio signals according to noise signals representing background noise generated by the pickup, the power amplifier amplifies the audio signals according to the amplification factor determined by the controller, and the loudspeaker is used for playing amplified audio signals of the power amplifier. The broadcasting system can automatically adjust volume of broadcasting audio according to background noise of each carriage, thereby guaranteeing broadcasting audio to be higher than background noise all the time.
Description
Technical field
The utility model relates to a kind of interior broadcast system of railway carriage that is used for facilities for transport and communication.
Background technology
In the facilities for transport and communication of the more piece railway carriage such as subway, light rail, train with pulling equipment and Towed Unit traction, broadcast system all has been installed, report broadcast message with loud speaker to the passenger by broadcast system.The broadcast system of existing facilities for transport and communication is mainly realized in the following manner:
1, carries out broadcasting for train at headstock or tailstock installation audio producing device, adopt centralized and unified power amplifier, the audio signal that the broadcast audio generation device produces is carried out being transported to the loud speaker that is installed in each compartment after the power amplification, thereby broadcast in each railway carriage, the size of broadcast sounds is carried out manual adjustments by train driver.
2, carry out broadcasting for train at headstock or tailstock installation audio producing device, adopt the power amplifier that disperses, the audio signal that the broadcast audio generation device produces is carried out respectively being transported to the loud speaker that is installed in this compartment after the power amplification in each compartment, thereby broadcast in this railway carriage, the size of broadcast sounds generally can not be adjusted.
Summary of the invention
The utility model provides a kind of broadcast system of facilities for transport and communication, adopt the power amplifier that disperses, the audio signal that the audio producing device produces is carried out respectively being transported to the loud speaker that is installed in this compartment after the power amplification in each compartment, and can adjust the size of broadcast sounds automatically according to the background noise in each compartment, guarantee that broadcast sounds is all the time than background noise height.
According to an aspect of the present utility model, a kind of broadcast system that is used for facilities for transport and communication is provided, comprising: at least one pick-up, described pick-up are installed in the railway carriage of facilities for transport and communication, with the background noise in the railway carriage that picks up facilities for transport and communication; Controller, described controller receive the audio signal of the needs broadcasting that the broadcast audio generation device of facilities for transport and communication produces, and the noise signal of the expression background noise that produces according to described pick-up is determined multiplication factor that described audio signal is amplified; Power amplifier, described power amplifier amplifies described audio signal according to the described multiplication factor that controller is determined; And loud speaker, described loud speaker is used to play the audio signal of amplifying through described power amplifier.
In above-mentioned broadcast system, described pick-up is more than two, and described broadcast system further comprises noise monitor, described noise monitor is handled the noise signal of the expression background noise that described pick-up produces, and producing treated noise signal, described controller is according to the definite multiplication factor that described audio signal is amplified of the treated noise signal of described noise monitor generation.
In above-mentioned broadcast system, described audio signal and described noise signal are digital signal, described controller is judged the pause between the described audio signal and described noise signal is sampled during value greater than the scheduled time at described pause, to determine described multiplication factor.
In above-mentioned broadcast system, described controller is constructed such that the big 5-10 decibel of power of the noise signal that the power ratio of the audio signal of amplifying through described power amplifier is treated.
In above-mentioned broadcast system, described scheduled time value was greater than 0.5 second.
In above-mentioned broadcast system, described pick-up is one, and described pick-up is installed in the described loud speaker.
In above-mentioned broadcast system, described pick-up and described loud speaker are the pickup public address system with pickup and broadcast function, described pickup public address system is used to play the audio signal of amplifying through described power amplifier, but the pause between described audio signal was used as pick-up and closes the broadcast function during value greater than the scheduled time, so that described noise signal is sampled.
Can be installed in respectively according to a plurality of broadcast systems of the present utility model in each railway carriage of facilities for transport and communication, but each broadcast system all receives the broadcast voice signal that sends from the broadcast audio generation device that is installed in the driver's cabin.Like this, each independently broadcast system same audio signal that the audio producing device is produced carry out respectively being transported to the loud speaker that is installed in this compartment after the power amplification, and can adjust the size of broadcast sounds automatically according to the background noise in each compartment, make broadcast sounds all the time than background noise height, the passenger who has promptly guaranteed different railway carriages can clearly hear simultaneously the content of identical broadcasting, has avoided the passenger to be bothered by too high broadcast sounds again.
Description of drawings
Further describe the utility model with reference to the accompanying drawings, wherein:
Fig. 1 shows the functional-block diagram according to the broadcast system of the facilities for transport and communication of exemplary embodiment of the present utility model, there is shown the broadcast audio generation device in the driver's cabin that is arranged on facilities for transport and communication.
In conjunction with the accompanying drawings also with reference to preferred embodiment of the present utility model; those skilled in the art can understand the application's further open, purpose, advantage and aspect better; these given drawings and Examples are for illustrative purposes, rather than protection range of the present utility model is limited.
Embodiment
Describe exemplary embodiment of the present utility model in detail below in conjunction with accompanying drawing.Identical Reference numeral is represented identical parts in the accompanying drawing.
Fig. 1 shows the functional-block diagram according to the broadcast system of the facilities for transport and communication of exemplary embodiment of the present utility model.As shown in Figure 1, broadcast system according to a kind of exemplary embodiment of the utility model, can be applicable in the facilities for transport and communication of the more piece railway carriage such as subway, light rail, train with pulling equipment and Towed Unit traction, the passenger who is used in single railway carriage reports broadcast message, the information of for example arriving at a station, Weather information, security information etc.Facilities for transport and communication generally are provided with broadcast audio generation device 1 in driver's cabin, be used to produce the audio signal of needs broadcasting, and the content of broadcasting can be stored in this broadcast audio generation device 1 in advance, also can report generation by the announcer temporarily.This broadcast system comprises: at least one pick-up 2, and described pick-up 2 is installed in the railway carriage of facilities for transport and communication, with the background noise in the railway carriage that picks up facilities for transport and communication; Controller 3, described controller 3 receives the audio signal of the needs broadcasting that the broadcast audio generation device of facilities for transport and communication produces, and the noise signal of the expression background noise that produces according to described pick-up 2 is determined multiplication factor that described audio signal is amplified; Power amplifier 4, described power amplifier 4 amplifies described audio signal according to the described multiplication factor that controller 3 is determined; And loud speaker 5, described loud speaker 5 is used to play the audio signal of amplifying through described power amplifier 4.
In broadcast system of the present utility model, broadcast audio generation device 1, pick-up 2, power amplifier 4 and loud speaker 4 can adopt existing device in the prior art.Pick-up can be installed in any position in the railway carriage, for example is installed on the ceiling of the stem of railway carriage or afterbody, on the car door or the like.Under the situation that a pick-up 2 is set, this pick-up 2 can be installed together with loud speaker, to save installation cost.Pick-up 2 also can be for more than two, and are installed in the diverse location in the railway carriage, to pick up the noise signal of diverse location.Broadcast system further comprises noise monitor 6, and described noise monitor 6 can be provided with separately, also can be arranged in the controller 3.The noise signal of the expression background noise that 6 pairs of pick-ups of noise monitor 2 produce carries out such as processing such as superposeing, average, and generation can be represented the treated noise signal of the noise situation of a plurality of positions, the definite multiplication factor that the audio signal that is produced by broadcast audio generation device 1 is amplified of treated noise signal that controller 3 produces according to noise monitor 6.The noise signal that 6 pairs of pick-ups of noise monitor 2 produce carries out before the overlap-add procedure, can also carry out Filtering Processing to these noise signals, also can carry out further digitized processing, converts digital signal to the noise signal that pick-up 2 is produced.Be appreciated that, controller 3, power amplifier 4, noise monitor 6 can be installed in any position as required, as long as guarantee to be electrically connected and do not influence the attractive in appearance of railway carriage with other electronic equipment, in a kind of exemplary embodiment, can be installed together with loud speaker 4 (perhaps pick-up 2).
When the multiplication factor that controller 3 is determined the audio signal that is produced by broadcast audio generation device 1 is amplified, should make the power of the noise signal that the power ratio of the audio signal of amplifying through power amplifier 4 is treated want big all the time, for example big 5-10 decibel, can make the passenger can hear the sound of broadcasting all the time like this, must not be but the highest above 95 decibels.Be appreciated that the power (size of power) according to treated noise signal, controller 3 determined multiplication factors may be greater than 1, also may also may be 1 less than 1.
According to the further embodiment of the utility model, controller 3 can carry out digitized processing to described audio signal, makes it convert digital signal to.Like this, the pause that controller 2 is judged between the audio signal that is digitized, and described noise signal is sampled during value greater than the scheduled time at described pause, determining described multiplication factor, thereby realize the power of the audio signal that real-time adjusting loud speaker 5 sends.In a kind of exemplary embodiment, scheduled time value was set at greater than 0.5 second, for example was set at 1,2 second or 2.5 seconds.Like this, the noise signal that is adopted does not comprise the audio signal of broadcasting, can carry out more accurate control to described multiplication factor.
In another kind of exemplary embodiment, pick-up 2 and loud speaker 5 are merged into the pickup public address system with pickup and broadcast function, this pickup public address system can be used as loud speaker to play the audio signal of amplifying through power amplifier 4, but the pause between audio signal is used as pick-up and closes the broadcast function during greater than scheduled time value (for example 0.5 second), so that noise signal is sampled, the noise signal that is adopted does not comprise the audio signal of broadcasting yet like this, and can carry out more accurate control to described multiplication factor.
According to broadcast system of the present utility model, can be applicable in the single railway carriage of facilities for transport and communication of the more piece railway carriage such as subway, light rail, train with the traction of pulling equipment and Towed Unit, that is to say, one cover broadcast system of the present utility model can be set, but each broadcast system all receives the broadcast voice signal that sends from the broadcast audio generation device that is installed in the driver's cabin in each railway carriage.Like this, each independently broadcast system same audio signal that the audio producing device is produced carry out respectively being transported to the loud speaker that is installed in this compartment after the power amplification, and can adjust the size of broadcast sounds automatically according to the background noise in each compartment, make broadcast sounds all the time than background noise height, the passenger who has promptly guaranteed different railway carriages can clearly hear simultaneously the content of identical broadcasting, has avoided the passenger to be bothered by too high broadcast sounds again.Be appreciated that many covers broadcast system of the present utility model, the size of regulating speaker volume according to the local noisy environment in the railway carriage also can be installed in same railway carriage.
Although exemplary embodiments of the present utility model is illustrated, but obviously those of ordinary skill is appreciated that, under the situation that does not deviate from spirit of the present utility model and principle, can change, its scope claims with and equivalent in limit.
Claims (8)
1. broadcast system that is used for facilities for transport and communication is characterized in that comprising:
At least one pick-up, described pick-up are installed in the railway carriage of facilities for transport and communication, with the background noise in the railway carriage that picks up facilities for transport and communication;
Controller, described controller receive the audio signal of the needs broadcasting that the broadcast audio generation device of facilities for transport and communication produces, and the noise signal of the expression background noise that produces according to described pick-up is determined multiplication factor that described audio signal is amplified;
Power amplifier, described power amplifier amplifies described audio signal according to the described multiplication factor that controller is determined; And
Loud speaker, described loud speaker are used to play the audio signal of amplifying through described power amplifier.
2. broadcast system as claimed in claim 1, it is characterized in that, described pick-up is more than two, and described broadcast system further comprises noise monitor, described noise monitor is handled the noise signal of the expression background noise that described pick-up produces, and produce treated noise signal
The definite multiplication factor that described audio signal is amplified of treated noise signal that described controller produces according to described noise monitor.
3. broadcast system as claimed in claim 2, it is characterized in that, described audio signal and described noise signal are digital signal, described controller is judged the pause between the described audio signal and described noise signal is sampled during value greater than the scheduled time at described pause, to determine described multiplication factor.
4. as claim 2 or 3 described broadcast systems, it is characterized in that described controller is constructed such that the big 5-10 decibel of power of the noise signal that the power ratio of the audio signal of amplifying through described power amplifier is treated.
5. broadcast system as claimed in claim 3 is characterized in that, described scheduled time value was greater than 0.5 second.
6. broadcast system as claimed in claim 3 is characterized in that, described pick-up is one, and described pick-up is installed in the described loud speaker.
7. broadcast system as claimed in claim 3, it is characterized in that, described pick-up and described loud speaker are the pickup public address system with pickup and broadcast function, described pickup public address system is used to play the audio signal of amplifying through described power amplifier, but the pause between described audio signal was used as pick-up and closes the broadcast function during value greater than the scheduled time, so that described noise signal is sampled.
8. broadcast system as claimed in claim 7 is characterized in that, described scheduled time value was greater than 0.5 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201210979U CN201533398U (en) | 2010-03-01 | 2010-03-01 | Broadcasting system of communication and transportation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201210979U CN201533398U (en) | 2010-03-01 | 2010-03-01 | Broadcasting system of communication and transportation equipment |
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| CN201533398U true CN201533398U (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201210979U Expired - Lifetime CN201533398U (en) | 2010-03-01 | 2010-03-01 | Broadcasting system of communication and transportation equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047994A (en) * | 2011-10-12 | 2013-04-17 | 昆山研达电脑科技有限公司 | Method and device for automatic regulation of navigator voice broadcasting volume |
| CN103618580A (en) * | 2013-11-22 | 2014-03-05 | 株洲南车时代电气股份有限公司 | Volume adjustment device of train broadcast system and train broadcast system |
| CN107046662A (en) * | 2017-06-20 | 2017-08-15 | 北京贝能达信息技术股份有限公司 | Track traffic broadcast multi-channel noise detection volume controller and control method |
| CN109238456A (en) * | 2018-11-27 | 2019-01-18 | 中车长春轨道客车股份有限公司 | Train environment noise detecting method, apparatus and system |
| CN109738052A (en) * | 2018-09-27 | 2019-05-10 | 比亚迪股份有限公司 | Environment noise test methods, devices and systems for rail traffic |
| CN109990892A (en) * | 2019-05-14 | 2019-07-09 | 深圳市航天华拓科技有限公司 | A kind of detection of rail transit cars internal noise and broadcast volume self-adjusting method |
| CN113810140A (en) * | 2020-07-09 | 2021-12-17 | 中车唐山机车车辆有限公司 | Multilayer passenger car and broadcasting system thereof |
-
2010
- 2010-03-01 CN CN2010201210979U patent/CN201533398U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047994A (en) * | 2011-10-12 | 2013-04-17 | 昆山研达电脑科技有限公司 | Method and device for automatic regulation of navigator voice broadcasting volume |
| CN103618580A (en) * | 2013-11-22 | 2014-03-05 | 株洲南车时代电气股份有限公司 | Volume adjustment device of train broadcast system and train broadcast system |
| CN103618580B (en) * | 2013-11-22 | 2016-04-06 | 株洲南车时代电气股份有限公司 | Train broadcasting system volume adjustment device and train broadcasting system |
| CN107046662A (en) * | 2017-06-20 | 2017-08-15 | 北京贝能达信息技术股份有限公司 | Track traffic broadcast multi-channel noise detection volume controller and control method |
| CN109738052A (en) * | 2018-09-27 | 2019-05-10 | 比亚迪股份有限公司 | Environment noise test methods, devices and systems for rail traffic |
| CN109238456A (en) * | 2018-11-27 | 2019-01-18 | 中车长春轨道客车股份有限公司 | Train environment noise detecting method, apparatus and system |
| CN109990892A (en) * | 2019-05-14 | 2019-07-09 | 深圳市航天华拓科技有限公司 | A kind of detection of rail transit cars internal noise and broadcast volume self-adjusting method |
| CN113810140A (en) * | 2020-07-09 | 2021-12-17 | 中车唐山机车车辆有限公司 | Multilayer passenger car and broadcasting system thereof |
| CN113810140B (en) * | 2020-07-09 | 2023-05-23 | 中车唐山机车车辆有限公司 | Multilayer passenger car and broadcasting system thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100721 |
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| CX01 | Expiry of patent term |