CN210351186U - Broadcasting testing device for metro vehicle - Google Patents
Broadcasting testing device for metro vehicle Download PDFInfo
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- CN210351186U CN210351186U CN201922038314.1U CN201922038314U CN210351186U CN 210351186 U CN210351186 U CN 210351186U CN 201922038314 U CN201922038314 U CN 201922038314U CN 210351186 U CN210351186 U CN 210351186U
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Abstract
The utility model discloses a subway is broadcast testing arrangement for vehicle, include: a broadcast control module; the broadcasting control module is connected with an audio control unit of the train broadcasting system through a broadcasting test line and a vehicle broadcasting bus; the broadcast control module is connected with the audio control unit through the talkback test circuit and the vehicle talkback bus; a first microphone for picking up a sound signal emitted by a tester; a noise generation module for generating noise; a second microphone for picking up a sound signal emitted from the speaker; the electromagnetic interference module is used for generating an electromagnetic signal and is connected with the broadcast control module; the voice recognition module receives the sound signals picked up by the second microphone and emitted by the loudspeaker and converts the sound signals into characters; a display screen for displaying at least text. The utility model discloses be convenient for test train broadcasting system on ground, be convenient for detect this system's trouble.
Description
Technical Field
The utility model relates to a railcar technical field, concretely relates to broadcasting testing arrangement for railcar.
Background
The train passenger information and display system comprises a plurality of subsystems such as broadcast communication, information display and media playing, CCTV video monitoring and the like, is specially used for urban rail transit vehicles such as subways, light rails and the like, is used as a service system directly facing passengers, and the stability of the function determines the quality of the operation service, and all functions are not available. Therefore, it is necessary to test the functions of each device in the system frequently.
The existing train broadcasting system is provided with an audio control unit and a loudspeaker connected with the audio control unit, and can realize an artificial talkback function and a broadcasting function.
Broadcast conditions in the operation process of a train are often related to main line conditions, and broadcast voice conditions cannot be maintained on the ground under the conditions of large main line noise or electromagnetic interference, and fault detection of a train broadcast system cannot be realized on the ground.
Disclosure of Invention
An object of the utility model is to provide a broadcasting testing arrangement for railcar is convenient for test train broadcasting system on ground, is convenient for detect this system's trouble.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:
a broadcasting test device for a subway vehicle is characterized by comprising: a broadcast control module; the artificial broadcast key is connected with the broadcast control module through a key circuit, and the broadcast control module is connected with an audio control unit of a train broadcast system through a broadcast test line and a vehicle broadcast bus; the talkback communication key is connected with the broadcast control module through a key circuit, and the broadcast control module is connected with the audio control unit through a talkback test circuit and a vehicle talkback bus; the first microphone is used for picking up a sound signal emitted by a tester and is connected with the broadcast control module; a noise generation module for generating noise and connected with the broadcast control module; a second microphone for picking up a sound signal emitted from a speaker of the train broadcasting system; the electromagnetic interference module is used for generating an electromagnetic signal and is connected with the broadcast control module; the voice recognition module receives the sound signals picked up by the second microphone and emitted by the loudspeaker and converts the sound signals into characters; a display screen for displaying at least the text.
The broadcast testing device for the metro vehicle as described above further includes: and the noise adding and reducing key is connected with the broadcast control module through a key circuit and is used for increasing or reducing the volume of the generated noise.
According to the broadcasting test device for the metro vehicle, the display screen is a touch display screen, and the artificial broadcasting key, the talkback contact key and the noise plus-minus key are all touch keys.
The broadcast testing device for the metro vehicle as described above further includes: and the electromagnetic interference starting key is connected with the broadcast control module through a key circuit.
According to the broadcasting test device for the subway vehicle, the display screen is a touch display screen, and the electromagnetic interference starting key is a touch key.
The broadcast testing device for the metro vehicle as described above further includes: and the volume increasing and decreasing key is connected with the broadcast control module through a key circuit and is used for increasing or decreasing the volume of the picked volume input to the audio control unit.
According to the broadcast testing device for the metro vehicle, the display screen is a touch display screen, and the volume up-down key is a touch key.
The broadcast testing device for the metro vehicle as described above further includes: and the sound analysis module receives the sound signal picked up by the second microphone and emitted by the loudspeaker and outputs volume.
Compared with the prior art, the utility model discloses an advantage is with positive effect: broadcast testing arrangement through the design, manual talkback to train broadcasting system, the broadcast function tests, through the artifical talkback of hard-line connection test and whether there is the trouble in broadcast function, and produce the noise through the noise, test broadcast volume, and test broadcast quality through discernment pronunciation characters when electromagnetic interference, train broadcasting system's adverse work environment when simulation train is just going on line to operate, the convenience is tested train broadcasting system on ground, improve train broadcasting system's stability in use, and can in time discover the trouble, be convenient for in time maintain and handle.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is the utility model provides a structure chart that subway vehicle is with broadcast testing arrangement embodiment and train broadcasting system are connected.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
The existing train broadcasting system 10' includes an audio control unit 1' and a speaker 2', and when manual talk-back is selected, a sound signal collected through a microphone is transmitted to the audio control unit 1' through a vehicle talk-back bus by current and emitted through the speaker 2', and when a talk-back function is selected, a sound signal collected through a microphone is transmitted to the audio control unit 1' through a vehicle broadcasting bus by current and emitted through the speaker 2 '.
In order to realize the abominable operational environment of train broadcasting system when the ground simulation train main line operates, detect the functional stability of train broadcasting system 10', be convenient for in time discover the trouble of train broadcasting system, this embodiment relates to a broadcasting testing arrangement 10 for railcar, includes: a broadcast control module 1; an artificial broadcast key (not shown) connected to the broadcast control module 1 through a key circuit, the broadcast control module 1 being connected to the audio control unit 1' through a broadcast test line (not shown) and a vehicle broadcast bus; an intercom communication key (not shown) connected with the broadcast control module 1 through a key circuit, the broadcast control module 1 being connected with the audio control unit 1' through an intercom test circuit (not shown) and a vehicle intercom bus; a first microphone 2 for picking up a sound signal emitted from a tester and connected to the broadcast control module 1; a noise generation module 3 for generating noise and connected to the broadcast control module 1; a second microphone 4 for picking up a sound signal emitted from the speaker 2 'of the train broadcasting system 101'; an electromagnetic interference module 5 for generating an electromagnetic signal and connected with the broadcast control module 1; a voice recognition module 7, which receives the sound signal emitted from the loudspeaker 2' picked up by the second microphone 4 and converts the sound signal into characters; a display screen (not shown) for displaying at least text.
Specifically, in the present embodiment, the broadcast testing apparatus 10 may be designed as a handheld device having a housing (not shown) and a display screen, and the broadcast testing apparatus 10 is further provided with a noise plus-minus key (not shown) and an electromagnetic interference start key. The display screen can be a touch display screen or a non-touch display screen, and preferably the touch display screen, so that the artificial broadcast key, the talkback contact key, the noise plus-minus key and the electromagnetic interference starting key are all touch keys.
The device 10 is provided with a first microphone 2 and a second microphone 4, the first microphone 2 acting as a test microphone for picking up the sound signal emitted by the tester, while the second microphone 4 acting as a detection microphone for detecting whether the volume of the broadcast sound meets the passenger's auditory comfort requirements in the presence of noise interference.
The broadcast testing device 10 is connected with a train broadcasting system 10 'through hardware, specifically, a broadcast control module 1 of the broadcast testing device 10 is correspondingly connected with a vehicle broadcasting bus and a vehicle talkback bus of the train broadcasting system 10' through a broadcast testing line and a talkback testing line respectively, and the vehicle broadcasting bus and the vehicle talkback bus are both connected with an audio control unit 1 'of the train broadcasting system 10', so that when the broadcast testing device 10 is turned on, an artificial broadcast key is touched and pressed down, a first microphone 2 collects a sound signal of a tester, the sound signal is transmitted to the audio control unit 1 'through the broadcast testing line and the vehicle broadcasting bus in a current form for processing, the sound signal is emitted through a loudspeaker 2' after processing, the talkback key is touched and pressed down, the first microphone 2 collects a sound signal of the tester, and the sound signal is transmitted to the audio control unit 1 through the talkback testing line and the vehicle talkback bus in a current form 'processed and then emitted through the speaker 2'. In the broadcast testing device 10, the artificial broadcast function and the talkback function of the train broadcast system 10' can be tested only by hard-wired connection and setting the first microphone 2, the artificial broadcast key and the talkback contact key on hardware, so that fault detection is realized.
In order to test the stability of the artificial broadcasting function of the train broadcasting system 10', in the present embodiment, whether the broadcasting volume meets the standard is judged by generating a noise test broadcasting sound through the noise generating module 3, and the broadcasting quality is judged by generating an electromagnetic interference signal through the electromagnetic interference module 5 to recognize the broadcasting voice.
In the present embodiment, the noise generation module 3 and the electromagnetic interference module 5 both use the existing noise generation module and electromagnetic interference module, and in the broadcast testing apparatus 10, only two modules are integrated to facilitate the test of the train broadcasting unit 10'. When the noise test is performed, the noise plus-minus key is touched to increase or decrease the noise volume, and then the manual broadcast key is pressed to realize a normal broadcast function, at this time, the second microphone 4 collects the sound emitted by the speaker 2', the volume is analyzed by, for example, the sound analysis module 6 arranged in the broadcast test device 10, and the volume is displayed on the display screen in decibels, wherein the sound analysis module 6 adopts the technology of analyzing the volume in the prior art, for example, the amplitude of the sound spectrum is collected, or the volume collection can use other external volume collectors in decibels. The volume according with the comfort level of the passenger has a certain range, so that whether the broadcast volume meets the comfort requirement of the passenger can be easily judged through the displayed decibel value when the noise exists. When the electromagnetic interference test is carried out, the electromagnetic interference starting key is touched to generate an electromagnetic interference signal, then the manual broadcast key is pressed to realize a normal broadcast function, at the moment, the second microphone 4 collects the sound emitted by the loudspeaker 2', the sound signal is analyzed into characters through the voice recognition module 7, and the character information is displayed on the display screen to determine whether the broadcast content is consistent with the character information or not to test the electromagnetic interference resistance of the broadcast function, wherein the voice analysis module 7 also adopts the technology of carrying out character analysis on the audio signal in the prior art, and the technology is mature in the field of audio processing and is not described in detail herein.
In this embodiment, the broadcast testing apparatus 10 is further provided with a volume up-down key, which is connected to the broadcast control module 1 through a key circuit and is used for increasing or decreasing the volume of the picked-up sound input to the audio control unit 1', wherein the volume up-down key is a touch key arranged on the touch display screen in this embodiment.
In the broadcast testing device 10 of the embodiment, the broadcast control module 1, the artificial broadcast button, the intercom contact button, the first microphone 2, the noise generation module 3, the second microphone 4, the electromagnetic interference module 5 and the voice recognition module 7 are designed on the broadcast testing device 10 in a combined manner, so that the artificial intercom test, the broadcast function test, the noise interference test and the electromagnetic interference test for the train broadcast system 10 'are realized, thereby detecting multiple functions of the train broadcast system 10', the substrate meets the comprehensive detection of a maintainer on the train broadcast system, the maintainer can conveniently and quickly and accurately troubleshoot faults, the severe working environment of the train broadcast system during the train main line operation can be simulated, the train broadcast system can be conveniently tested on the ground, and the use stability and reliability of the train broadcast system are improved.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.
Claims (8)
1. A broadcasting test device for a subway vehicle is characterized by comprising:
a broadcast control module;
the artificial broadcast key is connected with the broadcast control module through a key circuit, and the broadcast control module is connected with an audio control unit of a train broadcast system through a broadcast test line and a vehicle broadcast bus;
the talkback communication key is connected with the broadcast control module through a key circuit, and the broadcast control module is connected with the audio control unit through a talkback test circuit and a vehicle talkback bus;
the first microphone is used for picking up a sound signal emitted by a tester and is connected with the broadcast control module;
a noise generation module for generating noise and connected with the broadcast control module;
a second microphone for picking up a sound signal emitted from a speaker of the train broadcasting system;
the electromagnetic interference module is used for generating an electromagnetic signal and is connected with the broadcast control module;
the voice recognition module receives the sound signals picked up by the second microphone and emitted by the loudspeaker and converts the sound signals into characters;
a display screen for displaying at least the text.
2. The broadcast testing apparatus for a subway vehicle as claimed in claim 1, wherein said broadcast testing apparatus further comprises:
and the noise adding and reducing key is connected with the broadcast control module through a key circuit and is used for increasing or reducing the volume of the generated noise.
3. The broadcasting test device for the metro vehicle according to claim 2, wherein the display screen is a touch display screen, and the artificial broadcasting key, the intercom contact key and the noise addition and subtraction key are all touch keys.
4. The broadcast testing apparatus for a subway vehicle as claimed in claim 1, wherein said broadcast testing apparatus further comprises:
and the electromagnetic interference starting key is connected with the broadcast control module through a key circuit.
5. The broadcast testing device for the metro vehicle according to claim 4, wherein the display screen is a touch display screen, and the electromagnetic interference start key is a touch key.
6. The broadcast testing device for a subway vehicle as claimed in any one of claims 1 to 5, wherein said broadcast testing device further comprises:
and the volume increasing and decreasing key is connected with the broadcast control module through a key circuit and is used for increasing or decreasing the volume of the picked volume input to the audio control unit.
7. The broadcast testing device for metro vehicles according to claim 6, wherein the display screen is a touch display screen, and the volume up-down key is a touch key.
8. The broadcast testing device for a subway vehicle as claimed in any one of claims 1 to 5, wherein said broadcast testing device further comprises:
and the sound analysis module receives the sound signal picked up by the second microphone and emitted by the loudspeaker and outputs volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922038314.1U CN210351186U (en) | 2019-11-22 | 2019-11-22 | Broadcasting testing device for metro vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922038314.1U CN210351186U (en) | 2019-11-22 | 2019-11-22 | Broadcasting testing device for metro vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210351186U true CN210351186U (en) | 2020-04-17 |
Family
ID=70179405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922038314.1U Expired - Fee Related CN210351186U (en) | 2019-11-22 | 2019-11-22 | Broadcasting testing device for metro vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210351186U (en) |
-
2019
- 2019-11-22 CN CN201922038314.1U patent/CN210351186U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| 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: 20200417 Termination date: 20201122 |