CN109429142B - Voice broadcasting system - Google Patents
Voice broadcasting system Download PDFInfo
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- CN109429142B CN109429142B CN201710760293.7A CN201710760293A CN109429142B CN 109429142 B CN109429142 B CN 109429142B CN 201710760293 A CN201710760293 A CN 201710760293A CN 109429142 B CN109429142 B CN 109429142B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
Abstract
The invention discloses a voice broadcasting system.A noise sensor collects environmental noise and transmits the environmental noise to a control module; the control module is used for generating a current target volume value according to current environmental noise if the current voice broadcasting state of the voice broadcasting device is a broadcasting statement gap; the voice broadcast device adjusts the output volume according to the current target volume value and sends the voice broadcast state to the control module in real time. The voice broadcasting system can effectively solve the problem that people are disturbed by unclear broadcasting or excessive broadcasting caused by mismatching of voice volume and environmental noise, and is high in modularization degree and low in system complexity.
Description
Technical Field
The invention relates to a voice broadcasting technology, in particular to a voice broadcasting system.
Background
The voice broadcast device has comparatively extensive application on products such as automatic escalator and moving walk, and these products are used for public occasion usually, and in the face of complicated changeable service environment, present used voice broadcast device often appears reporting too lightly when the environment is noisy or reports when the environment is quiet and loudly owing to do not possess the function that the volume followed the ambient noise adjustment to cause the unable effective transmission of report information or report and have sounded the people. Therefore, how to automatically adjust the volume of voice broadcast to make the broadcast volume suitable for the environment becomes an urgent problem to be solved.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a voice broadcasting system, which can effectively solve the problem that people are disturbed by unclear broadcasting or excessive voice caused by mismatching of voice volume and environmental noise, and has high modularization degree and low system complexity.
In order to solve the technical problem, the voice broadcasting system provided by the invention comprises a noise sensor 11, a control module 12 and a voice broadcasting device 13;
the noise sensor 11 is used for collecting environmental noise and transmitting the environmental noise to the control module 12;
if the current voice broadcast state of the voice broadcast device 13 is a broadcast statement gap, the control module 12 generates a current target volume value according to the current environmental noise;
the voice broadcasting device 13 adjusts the output volume according to the current target volume value, and sends a voice broadcasting state to the control module 12 in real time.
Preferably, the control module 12 includes a determining unit 121, a processing unit 122 and a calculating unit 123;
the judging unit 121 judges whether the broadcast statement is in a broadcast statement gap according to a voice broadcast state fed back by the voice broadcast device 13 in real time;
the processing unit 122, if the judging unit 121 judges that the current environmental noise is in the broadcast statement gap, performs sampling filtering on the current environmental noise to obtain a current noise value;
the calculating unit 123 is connected between the processing unit 122 and the voice broadcasting device 13, and is configured to calculate a current target volume value according to the current noise value, and send the target volume value to the voice broadcasting device 13 in real time.
Preferably, the process of the processing unit 122 performing sampling filtering on the current environmental noise is as follows:
if the maximum sampling value of the current environmental noise is greater than the current noise value during the broadcasting statement interval, the current noise value is increased by one unit value; if the current noise value is less than the current noise value, the current noise value is reduced by one unit value; if equal to the current noise value, the current noise value is kept unchanged.
Preferably, the control module 12 and the voice broadcasting device 13 are integrated on a printed circuit board and are installed in the voice control box.
Preferably, the noise sensor 11 is designed to be integrated, and can directly complete analog-to-digital conversion of the noise signal.
Preferably, at least one of the noise sensors 11 performs a weighting operation on the environmental noise collected by each noise sensor 11, and then sends the environmental noise to the control module 12.
Preferably, an SPI communication mode is adopted between the control module 12 and the voice broadcast device 13.
Preferably, the noise sensor 11 is integrated with the control module 12 and is mounted on the escalator or moving pavement body;
the noise sensor 11 is provided with an attenuation module;
the attenuation module attenuates the environmental noise collected by the noise sensor 11 according to a normal distribution with one or more of 500Hz, 599Hz and 1312Hz as a center frequency.
Preferably, the attenuation module attenuates the environmental noise collected by the noise sensor 11 by a normal distribution with a variance σ of 1 or less with one or more of 500Hz, 599Hz, and 1312Hz as a center frequency.
Preferably, the attenuation amplitude of the attenuation module for the central frequency is 14dB to 15 dB.
Preferably, the noise sensor 11 is integrated with the control module 12 and is mounted on a skirt panel or a decorative panel of the escalator or moving pavement body.
Preferably, an RS485 communication mode or a CAN communication mode is adopted between the noise sensor 11 and the control module.
Preferably, the noise sensor 11 is installed at a position around the entrance and exit of the escalator or moving sidewalk;
the control module 12 is installed on the escalator or moving pavement body;
the noise sensor 11 communicates wirelessly with the control module 12.
The noise sensor 11 is installed in a pillar or on a wall surface around the entrance/exit of the escalator or moving sidewalk.
Preferably, the voice broadcasting system comprises a plurality of noise sensors 11, the plurality of noise sensors 11 are connected to the control module 12 through a communication bus, and the noise sensors at different positions are distinguished through protocol addresses.
Preferably, the voice broadcasting device 13 adopts a gradual following mode when adjusting the output volume according to the target volume value.
According to the voice broadcasting system, the noise sensor 11, the control module 12 and the voice broadcasting device 13 are organically combined, so that the self-adaptive control of voice broadcasting volume is realized, the three-in-one effect is achieved, the voice broadcasting system is suitable for occasions of escalators or moving sidewalks, and the output volume can be adjusted in two directions according to environmental noise, so that the problem that people are disturbed by unclear broadcasting or excessive voice caused by the fact that the voice volume is not matched with the environmental noise can be effectively solved; and because the current target volume value is generated according to the current environmental noise in the broadcasting statement interval, the environmental noise signal and the voice signal do not need to be separated, the modularization degree is high, the complexity of the system is low, and the cost of a sensor and the like is reduced.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the present invention are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a functional module of a voice broadcast system according to the present invention;
fig. 2 is a schematic diagram of a voice broadcast system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a filtering process of an embodiment of the voice broadcasting system according to the present invention;
fig. 4 is a field noise filtering effect diagram of an embodiment of the voice broadcasting system of the present invention;
FIG. 5 is a noise profile of an escalator body;
fig. 6 is a schematic diagram of a bus connection mode of an embodiment of the voice broadcast system of the present invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1, the voice broadcast system includes a noise sensor 11, a control module 12, and a voice broadcast device 13;
the noise sensor 11 is used for collecting environmental noise and transmitting the environmental noise to the control module 12;
if the current voice broadcast state of the voice broadcast device 13 is a broadcast statement gap, the control module 12 generates a current target volume value according to the current environmental noise;
and the voice broadcasting device 13 adjusts the output volume according to the current target volume value and sends a voice broadcasting state to the control module in real time.
In the voice broadcasting system according to the first embodiment, at least one noise sensor 11 is used for collecting environmental noise; the control module is responsible for screening and processing the environmental noise data, and if the current voice broadcasting state of the voice broadcasting device 13 is a broadcasting statement gap, the environmental noise is processed and calculated to obtain a current target volume value matched with the environmental noise; control module 12 and voice broadcast device 13 are two-way communication, and control module 12 sends the control command who contains current target volume value to voice broadcast device 13, and voice broadcast device 13 feeds back current voice broadcast state to control module 12, contains the state whether to report the statement clearance, and voice broadcast device 13 adjusts the output volume according to current target volume value. The voice broadcasting system according to the first embodiment organically combines the noise sensor 11, the control module 12 and the voice broadcasting device 13, so that the self-adaptive control of the voice broadcasting volume is realized, and the three-in-one effect is achieved, and the voice broadcasting system is suitable for occasions of escalators or moving sidewalks, and can effectively solve the problem that people are disturbed by unclear broadcasting or excessive noise caused by mismatching of the voice volume and the environmental noise because the output volume can be bidirectionally adjusted according to the environmental noise; and because the current target volume value is generated according to the current environmental noise in the broadcasting statement interval, the environmental noise signal and the voice signal do not need to be separated, the modularization degree is high, the complexity of the system is low, and the cost of a sensor and the like is reduced.
Example two
Based on the voice broadcasting system of the first embodiment, as shown in fig. 2, the control module 12 includes a determining unit 121, a processing unit 122, and a calculating unit 123;
the judging unit 121 judges whether the broadcast statement is in a broadcast statement gap according to a voice broadcast state fed back by the voice broadcast device 13 in real time;
the processing unit 122, if the judging unit 121 judges that the current environmental noise is in the broadcast statement gap, performs sampling filtering on the current environmental noise to obtain a current noise value; if the broadcast statement is judged not to be in the gap, no processing is carried out.
The calculating unit 123 is connected between the processing unit 122 and the voice broadcasting device 13, and is configured to calculate a current target volume value according to the current noise value, and send the target volume value to the voice broadcasting device 13 in real time.
The voice broadcast system of embodiment two, voice broadcast device 13 can feed back current voice broadcast state to control module 12 in real time, so that control module 12 judges whether the environmental noise of real-time collection is in broadcasting the statement clearance, if be in broadcasting the statement clearance, processing unit 122 can carry out filtering process to the current environmental noise that noise sensor gathered, in order to get rid of the clutter, the environmental noise value that will handle the gained obtains the target volume value through the operation, when the realization is tracked to the faster of environmental noise, prevent clutter signal to the excessive influence of filtering result (specific filtering effect reference figure 4).
EXAMPLE III
Based on the voice broadcast system of the second embodiment, as shown in fig. 3, the process of the processing unit 122 performing sampling filtering on the current environmental noise is as follows:
if the maximum sampling value of the current environmental noise is greater than the current noise value during the broadcasting statement interval, the current noise value is increased by one unit value; if the current noise value is less than the current noise value, the current noise value is reduced by one unit value; if equal to the current noise value, the current noise value is kept unchanged.
Example four
Based on the voice broadcasting system of the first embodiment, the control module 12 and the voice broadcasting device 13 are integrated on a printed circuit board and are installed in a voice control box.
Preferably, the noise sensor 11 is designed to be integrated, and can directly complete analog-to-digital conversion of the noise signal.
Preferably, at least one of the noise sensors 11 performs a weighting operation on the environmental noise collected by each noise sensor 11, and then sends the environmental noise to the control module 12.
Preferably, an SPI communication mode is adopted between the control module 12 and the voice broadcast device 13.
In the voice broadcasting system of the fourth embodiment, the control module 12 and the voice broadcasting device 13 are integrated on one printed circuit board, so that the extension is convenient, and the SPI communication mode is adopted between the control module 12 and the voice broadcasting device 1, thereby realizing high-speed full-time duplex communication.
EXAMPLE five
Based on the voice broadcasting system of the first embodiment, the noise sensor 11 and the control module 12 are integrated together and mounted on the escalator or moving sidewalk body;
the noise sensor 11 is provided with an attenuation module;
the attenuation module attenuates the environmental noise collected by the noise sensor 11 according to a normal distribution with one or more of 500Hz, 599Hz and 1312Hz as a center frequency.
Preferably, the attenuation module attenuates the environmental noise collected by the noise sensor 11 by a normal distribution with a variance σ of 1 or less with one or more of 500Hz, 599Hz, and 1312Hz as a center frequency.
Preferably, the attenuation amplitude of the attenuation module for the central frequency is 14dB to 15 dB.
Preferably, the noise sensor 11 is integrated with the control module 12 and is installed at a position of a skirt panel, a decorative plate, etc. of the escalator or moving pavement body.
Preferably, an RS485 or CAN communication mode is adopted between the noise sensor 11 and the control module.
In the voice broadcasting system of the fifth embodiment, the noise sensor 11 and the control module 12 are integrated together and mounted on the escalator or moving sidewalk body, so that the voice broadcasting system is convenient to mount; the noise sensor 11 attenuates typical noise generated by the escalator or moving walk body in the elevator running process through the attenuation module (the noise generated by the body in the elevator running process is mainly concentrated near 500Hz, 599Hz and 1312Hz as shown in fig. 5), eliminates the influence of the running noise of the elevator on the collected environmental noise, and improves the accuracy and stability of the environmental noise value.
EXAMPLE six
Based on the voice broadcasting system of the first embodiment, the noise sensor 11 is installed at a position close to the periphery of the entrance and exit of the escalator or the moving sidewalk; the control module 12 is installed on the escalator or moving pavement body; the noise sensor 11 communicates wirelessly with the control module 12.
Preferably, the noise sensor 11 is installed in a vertical column around the entrance of the escalator or moving sidewalk or in a wall surface or the like.
The voice broadcast system of the sixth embodiment, the noise sensor 11 transmits the environmental noise of gathering to the control module 12 on the escalator or the moving walk through the wireless communication mode to solve the difficulty on the wired communication wiring, the environmental noise of gathering moreover is not influenced by the escalator body noise, and the noise signal is stable.
EXAMPLE seven
According to the first embodiment, as shown in fig. 6, the voice broadcast system includes a plurality of noise sensors 11, the plurality of noise sensors 11 are connected to the control module 12 through a communication bus, and the noise sensors at different positions are distinguished by protocol addresses.
The voice broadcasting system of the seventh embodiment can arrange two or more noise sensors according to the voice broadcasting requirement of the entrance of the escalator or the moving sidewalk, and can realize the response of the control module to different escalator operation modes through the bus communication between the escalator master controller and the control module.
Example eight
Based on the voice broadcast system of the first embodiment, the voice broadcast device 13 adopts a gradual following mode when adjusting the output volume according to the target volume value.
The voice broadcast system of the eighth embodiment adopts the control mode that the target volume value follows gradually, therefore when the external noise volume changes and lasts for a period of time, the output volume will be adjusted to suitable size to adapt to the change, and the adjustment is bidirectional, namely when the environmental noise becomes large, the output volume will become large, when the environmental noise becomes small, the output volume will also become small, not only can the broadcast information be guaranteed to be effectively conveyed, but also discomfort and disturbance that the sudden change of volume may bring the passenger can be avoided.
The above are merely preferred embodiments of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (15)
1. The voice broadcasting system is characterized by comprising a noise sensor (11), a control module (12) and a voice broadcasting device (13);
the noise sensor (11) is used for collecting environmental noise and transmitting the environmental noise to the control module (12);
the control module (12) comprises a processing unit (122);
the processing unit (122) is used for sampling and filtering the current environmental noise to obtain a current noise value;
the control module (12) generates a current target volume value according to the current noise value if the current voice broadcasting state of the voice broadcasting device 13 is a broadcasting statement gap;
the voice broadcasting device (13) adjusts output volume according to the current target volume value and sends a voice broadcasting state to the control module (12) in real time; the processing unit (122) performs sampling filtering on the current environmental noise by:
if the maximum sampling value of the current environmental noise is greater than the current noise value during the broadcasting statement interval, the current noise value is increased by one unit value; if the current noise value is less than the current noise value, the current noise value is reduced by one unit value; if equal to the current noise value, the current noise value is kept unchanged.
2. The voice broadcasting system according to claim 1, wherein the control module (12) further comprises a judging unit (121) and a calculating unit (123);
the judging unit (121) judges whether the broadcasting statement is in a broadcasting statement gap or not according to the voice broadcasting state fed back by the voice broadcasting device (13) in real time;
the processing unit (122) is used for sampling and filtering the current environmental noise to obtain a current noise value if the judging unit (121) judges that the current environmental noise is in the broadcasting statement gap;
and the computing unit (123) is connected between the processing unit (122) and the voice broadcasting device (13), and is used for computing a current target volume value according to the current noise value and sending the target volume value to the voice broadcasting device (13) in real time.
3. The voice broadcasting system according to claim 1,
the control module (12) and the voice broadcasting device (13) are integrated on a printed circuit board and are installed in the voice control box.
4. The voice broadcasting system according to claim 1,
the noise sensor (11) adopts an integrated design and can directly complete analog-to-digital conversion of noise signals.
5. The voice broadcasting system according to claim 1,
at least one noise sensor (11) is arranged, and the environmental noise collected by each noise sensor (11) is sent to the control module (12) after being subjected to weighting operation.
6. The voice broadcasting system according to claim 1,
and an SPI communication mode is adopted between the control module (12) and the voice broadcasting device (13).
7. The voice broadcasting system according to claim 1,
the noise sensor (11) and the control module (12) are integrated together and are arranged on the escalator or the moving pavement body;
the noise sensor (11) is provided with an attenuation module;
the attenuation module attenuates the environmental noise collected by the noise sensor (11) according to a normal distribution with one or more of 500Hz, 599Hz and 1312Hz as a center frequency.
8. The voice broadcasting system according to claim 7,
the attenuation module attenuates the environmental noise collected by the noise sensor (11) by a normal distribution with a variance sigma smaller than or equal to 1 with one or more of 500Hz, 599Hz and 1312Hz as a center frequency.
9. The voice broadcasting system according to claim 7,
the attenuation amplitude of the attenuation module for the central frequency is 14 dB-15 dB.
10. The voice broadcasting system according to claim 7,
the noise sensor (11) and the control module (12) are integrated together and are arranged on a skirt panel or a decorative plate of the escalator or moving pavement body.
11. The voice broadcasting system according to claim 7,
and an RS485 communication mode or a CAN communication mode is adopted between the noise sensor (11) and the control module.
12. The voice broadcasting system according to claim 1,
the noise sensor (11) is arranged at the periphery of the entrance and exit of the escalator or the moving sidewalk;
the control module (12) is arranged on the escalator or the moving sidewalk body;
the noise sensor (11) and the control module (12) are in wireless communication.
13. The voice broadcasting system of claim 12,
the noise sensor (11) is arranged in a vertical column or on a wall surface at the periphery of an access hole of the escalator or the moving sidewalk.
14. The voice broadcasting system according to claim 1,
the voice broadcasting system comprises a plurality of noise sensors (11), the noise sensors (11) are connected to a control module (12) through a communication bus, and the noise sensors at different positions are distinguished through protocol addresses.
15. The voice broadcasting system according to claim 1,
and the voice broadcasting device (13) adopts a progressive following mode when adjusting the output volume according to the target volume value.
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| CN201710760293.7A CN109429142B (en) | 2017-08-30 | 2017-08-30 | Voice broadcasting system |
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| CN201710760293.7A CN109429142B (en) | 2017-08-30 | 2017-08-30 | Voice broadcasting system |
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| CN111161721B (en) * | 2019-11-28 | 2022-12-20 | 广州赛特智能科技有限公司 | Method for adjusting voice broadcast speed indoors according to moving distance |
| CN111427536A (en) * | 2020-03-27 | 2020-07-17 | 四川虹美智能科技有限公司 | Method and device for automatically adjusting voice broadcast volume of equipment |
| CN111858559A (en) * | 2020-07-24 | 2020-10-30 | 上海代愿成信息科技有限公司 | Intelligent display method of software for information consultation |
| CN112700672A (en) * | 2020-12-21 | 2021-04-23 | 深圳供电局有限公司 | Intelligent voice broadcasting system and method |
| CN115512563A (en) * | 2022-09-05 | 2022-12-23 | 广州理工学院 | Intelligent bus voice station reporting equipment |
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| US7949522B2 (en) * | 2003-02-21 | 2011-05-24 | Qnx Software Systems Co. | System for suppressing rain noise |
| CN101546213A (en) * | 2008-03-25 | 2009-09-30 | 联想(北京)有限公司 | Method, system and device for adjusting rotating speed of radiating equipment in data processing equipment |
| CN102760461B (en) * | 2012-05-28 | 2015-08-05 | 杭州联汇数字科技有限公司 | A kind of audio-frequence player device of Automatic adjusument volume and method |
| CN103152668B (en) * | 2012-12-22 | 2015-03-11 | 深圳先进技术研究院 | Adjusting method of output audio and system thereof |
| CN105299817B (en) * | 2014-05-27 | 2018-12-18 | 青岛海尔空调电子有限公司 | A kind of automatic air conditionning method and air-conditioning based on voice signal |
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