CN212137684U - Multimedia data acquisition equipment and system - Google Patents
Multimedia data acquisition equipment and system Download PDFInfo
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- CN212137684U CN212137684U CN202020380650.4U CN202020380650U CN212137684U CN 212137684 U CN212137684 U CN 212137684U CN 202020380650 U CN202020380650 U CN 202020380650U CN 212137684 U CN212137684 U CN 212137684U
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Abstract
The present disclosure relates to a multimedia data acquisition device and system, including: the system comprises a Bluetooth chip, a Micro Control Unit (MCU) and a wireless transmission module, wherein the MCU is respectively connected with the Bluetooth chip and the wireless transmission module; and the MCU is used for receiving the broadcast audio data sent by the terminal equipment through the Bluetooth chip, acquiring target audio data according to the broadcast audio data, and sending the target audio data to the server through the wireless transmission module, so that the server determines a target wireless broadcasting station corresponding to the broadcast audio data played in the terminal equipment according to the target audio data. Therefore, the broadcasting audio data acquired by the MCU is not influenced by factors such as environmental noise, volume, distance and the like, so that a target wireless broadcasting station determined by the server according to the target audio data is more accurate.
Description
Technical Field
The present disclosure relates to the field of wireless broadcasting technologies, and in particular, to a multimedia data acquisition device and system.
Background
The wireless broadcast listening rate acquisition is to realize the purpose of acquiring the proportion of the number of people listening to a certain radio station (program) in a certain specific time period (program playing time period) in a certain area to potential listeners in the area, namely to realize the data acquisition of the wireless broadcast listening rate.
In the related art, the sound played by a radio station listened to by a user can be collected, and whether the user listens to a certain radio station or not is determined in a sound identification mode. However, the method is greatly influenced by uncertain factors such as environmental noise, volume, distance and the like, so that the radio station has low recognition rate and poor real-time performance, and the sound played by the radio station cannot be collected when a user listens to the radio station by using an earphone.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present disclosure provides a multimedia data acquisition apparatus and system.
In a first aspect, the present disclosure provides a multimedia data acquisition device, comprising: the Bluetooth device comprises a Bluetooth chip, an MCU (micro controller Unit) and a wireless transmission module, wherein the MCU is respectively connected with the Bluetooth chip and the wireless transmission module; the MCU is used for receiving broadcast audio data sent by the terminal equipment through the Bluetooth chip, acquiring target audio data according to the broadcast audio data, and sending the target audio data to the server through the wireless transmission module, so that the server can determine a target wireless broadcast station corresponding to the broadcast audio data played in the terminal equipment according to the target audio data.
Optionally, the bluetooth chip is further configured to: after receiving a Bluetooth connection request message sent by the terminal equipment, the Bluetooth connection request message is used for requesting to establish Bluetooth connection with audio playing equipment, and the Bluetooth connection with the audio playing equipment is established according to the Bluetooth connection request message; the MCU is further used for sending the received broadcast audio data to the audio playing device, so that the terminal device can play the broadcast audio data through the audio playing device.
Optionally, the MCU is further configured to: and adding a timestamp to the received broadcast audio data to obtain the target audio data, wherein the timestamp comprises the time when the MCU receives the broadcast audio data.
Optionally, the MCU is further configured to: acquiring sampling time corresponding to the timestamp; and sampling the broadcast audio data according to the sampling time to obtain the target audio data.
Optionally, the MCU is further configured to: and compressing the broadcast audio data according to a preset compression rate to obtain the target audio data.
Optionally, the MCU is further configured to: adding user information to the broadcast audio data.
In a second aspect, the present disclosure provides a multimedia data acquisition system, comprising: multimedia data acquisition equipment and a server, wherein the multimedia data acquisition equipment comprises the multimedia data acquisition equipment of the first aspect; the server is used for receiving target audio data sent by the multimedia data acquisition equipment according to the broadcast audio data and determining a target radio station corresponding to the broadcast audio data corresponding to the target audio data played in the terminal equipment from at least one preset radio station.
Optionally, the target audio data includes audio data obtained by adding a timestamp to the received broadcast audio data by an MCU in the multimedia data acquisition device and sampling the broadcast audio data according to a sampling time corresponding to the timestamp, where the timestamp includes a time when the MCU receives the broadcast audio data; the server is further configured to obtain audio data of at least one preset radio station corresponding to the timestamp, obtain matching audio data matched with the target audio data from the audio data of the at least one preset radio station according to the sampling time, and use the preset radio station corresponding to the matching audio data as the target radio station.
Optionally, the server is further configured to: acquiring sampling audio data corresponding to the sampling time from the audio data of each preset radio station; and if the target audio data is the same as the sampled audio data, determining the sampled audio data as matched audio data matched with the target audio data.
Optionally, the server is further configured to: if it is determined that there are a plurality of preset radio broadcast stations playing the broadcast audio data, an application program playing the broadcast audio data in the terminal device can be acquired; and determining the target wireless broadcasting station from a plurality of preset wireless broadcasting stations according to the application program.
According to the technical scheme, the MCU can receive the broadcast audio data sent by the terminal equipment through the Bluetooth chip, acquire the target audio data according to the broadcast audio data, and send the target audio data to the server through the wireless transmission module, so that the server can determine the target wireless broadcast station corresponding to the broadcast audio data played in the terminal equipment according to the target audio data. That is to say, when a user listens to the wireless broadcasting station through the terminal device, the MCU can directly acquire the broadcasting audio data played by the terminal device, and the broadcasting audio data is not affected by environmental noise, volume, distance, and other factors, so after the MCU acquires the target audio data according to the broadcasting audio data and sends the target audio data to the server, the target wireless broadcasting station determined by the server according to the target audio data is more accurate.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a schematic structural diagram of a multimedia data acquisition device provided in an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another multimedia data acquisition device provided in an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a multimedia data acquisition system according to an embodiment of the present disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
First, an application scenario of the present disclosure will be explained. The method and the device can be applied to scenes for obtaining the audience rating of the radio broadcasting station, and in the related technology, the broadcast audio data of the radio broadcasting station played by a user through a loudspeaker of the terminal equipment can be collected, and the radio broadcasting station listened to by the user is determined by comparing the broadcast audio data with the real-time audio data stored in the database. However, the inventor finds that the broadcast audio data collected in this way is greatly influenced by uncertain factors such as environmental noise, volume, distance and the like, for example, if a user chats while listening to a radio station, the collected audio data also includes the content of the chat, which results in a low accuracy of the listening rate of the radio station determined according to the broadcast audio data. In addition, if the user listens to the radio broadcast station through the earphone, the broadcast audio data played by the radio broadcast station cannot be collected, so that the listening rate of the radio broadcast station cannot be obtained.
Fig. 1 is a schematic structural diagram of a multimedia data acquisition device according to an embodiment of the present disclosure. As shown in fig. 1, the apparatus may include a bluetooth chip 101, an MCU 102, and a wireless transmission module 103, where the MCU 102 is connected to the bluetooth chip 101 and the wireless transmission module 103, respectively.
The MCU 102 is configured to receive broadcast audio data sent by the terminal device through the bluetooth chip 101, obtain target audio data according to the broadcast audio data, and send the target audio data to the server through the wireless transmission module 103, so that the server determines a wireless broadcast station corresponding to the broadcast audio data played in the terminal device according to the target audio data.
The terminal device may be a smart phone, a tablet computer, a car radio, or other devices that can establish a bluetooth connection with the multimedia data acquisition device, which is not limited by the present disclosure.
It should be noted that the multimedia data acquisition device of the present disclosure may acquire the broadcast audio data played by the user through the terminal device according to the logged-in user information. Here, the terminal device may include a plurality of terminal devices, and when a user uses any one terminal device to listen to the wireless broadcasting station, the user may trigger the multimedia data acquisition device to establish a bluetooth connection with the terminal device being used. For example, when the user a listens to the radio broadcasting station by using the smart phone, the multimedia data acquisition device may be triggered to establish bluetooth connection with the smart phone, and when the user a listens to the radio broadcasting station by using the platform computer, the multimedia data acquisition device may be triggered to establish bluetooth connection with the platform computer.
After the multimedia data acquisition device determines that the bluetooth connection with the terminal device needs to be established, the bluetooth pairing request message can be sent to the terminal device, so that the terminal device can establish the bluetooth connection with the multimedia data acquisition device according to the bluetooth pairing request message. After the bluetooth connection is established between the multimedia data acquisition device and the terminal device, the terminal device may send broadcast audio data being played to the multimedia data acquisition device, and the MCU 102 in the multimedia data acquisition device may receive the broadcast audio data through the bluetooth chip 101. Further, MCU 102 may encrypt the broadcast audio data through an encryption algorithm of a common technology to obtain target audio data corresponding to the broadcast audio data, and send the target audio data to the server through wireless transmission module 103.
Since a user may listen to a radio broadcast station using an audio playing device, for example, an audio playing device such as a bluetooth headset or a bluetooth speaker, when the user uses the audio playing device such as a bluetooth headset or a bluetooth speaker, the terminal device needs to establish a bluetooth connection with the audio playing device, so that the terminal device can transmit broadcast audio data to be played to the audio playing device and play the broadcast audio data through the audio playing device. However, the existing terminal device can only establish bluetooth connection with one type of bluetooth device at the same time, that is, under the condition that the terminal device has established bluetooth connection with the multimedia data acquisition device, it is no longer able to establish bluetooth connection with the audio playing device. Therefore, the present disclosure needs to solve the problem that a user listens to a radio station through an audio playing device and simultaneously collects broadcast audio data played by the terminal device through a multimedia data collecting device.
In a possible implementation manner, the bluetooth chip 101 is further configured to establish a bluetooth connection with the audio playing device according to the bluetooth connection request message after receiving the bluetooth connection request message sent by the terminal device; the MCU 102 is further configured to send the received broadcast audio data to an audio playing device, so that the terminal device plays the broadcast audio data through the audio playing device.
The Bluetooth connection request message is used for requesting to establish Bluetooth connection with the audio playing device. When a user needs to use the audio playing device, the terminal device is triggered to send a bluetooth connection request message, and the bluetooth chip 101 may receive the bluetooth connection request message sent by the terminal device. After the bluetooth chip 101 receives the bluetooth connection request message, the bluetooth connection with the audio playback device may be established, that is, the bluetooth chip 101 establishes bluetooth connection with the terminal device and the audio playback device at the same time. Then, when the terminal device plays the broadcast audio data, the broadcast audio data is firstly sent to the MCU 102, and after receiving the broadcast audio data sent by the terminal device, the MCU 102 sends the broadcast audio data to the audio playing device.
After receiving the target audio data sent by MCU 102, the server may decrypt the target audio data to obtain broadcast audio data corresponding to the target audio data, and then may compare the broadcast audio data with audio data of a preset radio station stored in the server by using a voice recognition algorithm of a common technology to determine a target radio station corresponding to the broadcast audio data played in the terminal device. For example, if the preset radio broadcast stations include a radio broadcast station a, a radio broadcast station B, and a radio broadcast station C, the broadcast audio data is compared with the audio data of the radio broadcast station a, the radio broadcast station B, and the radio broadcast station C stored in the server, and if the broadcast audio data is the same as the audio data of the radio broadcast station B, it may be determined that the target radio broadcast station corresponding to the broadcast audio data played in the terminal device is the radio broadcast station B.
The preset radio station may be a radio station that needs to collect a listening rate, the audio data of the preset radio station stored in the server may be audio data played by each preset radio station within a preset time period, and the preset time period may be determined according to collection efficiency of the broadcast audio data, and may be, for example, 5 hours or 24 hours. In the process of playing the preset radio station, the server may store the audio data played by the preset radio station in real time.
After receiving the broadcast audio data sent by the terminal, MCU 102 may directly send the broadcast audio data to the server, or may process the broadcast audio data to obtain target audio data, and send the target audio data to the server.
In one possible implementation, MCU 102 may add a timestamp to the received broadcast audio data to obtain the target audio data. Where the timestamp may include the time at which the broadcast audio data was received by MCU 102.
Since the time taken for the terminal device to transmit the broadcast audio data to MCU 102 via bluetooth is very short and can be ignored, the present disclosure can regard the time when MCU 102 receives the broadcast audio data as the time when the terminal device plays the broadcast audio data.
After receiving the broadcast audio data, MCU 102 may use the time when the broadcast audio data is received as a time stamp, and add the time stamp to the broadcast audio data to obtain the target audio data. After receiving the target audio data sent by MCU 102, the server may obtain stored audio data of a preset radio station corresponding to the timestamp, and thus, only compare the audio data according to the timestamp, thereby saving the comparison time of the audio data and improving the collection efficiency of the audience rating of the radio station.
In addition, the timestamp may further include a playing time of the broadcast audio data, and after receiving the target audio data sent by the MCU 102, the server may obtain the corresponding audio data of the preset radio station according to the playing time of the target audio data, so that the audio data only needs to be compared according to the playing time, thereby saving the comparison time of the audio data and improving the collection efficiency of the audience rating of the radio station.
Further, MCU 102 may also preset different sampling times for different programs, where the sampling time may be 5 seconds, 10 seconds, 15 seconds, and so on. For example, for an advertisement program, it is necessary to determine whether the user is completely listening or whether the radio broadcast station is completely playing, and a longer sampling time, for example, 15 seconds, may be set; for a variety program, a shorter sampling time, for example, 5 seconds, may be set without concern for the user to listen to it completely. Since the program broadcast by each radio station is preset, for example, a 9-point whole broadcast advertisement and a 9-point 20-point broadcast music, MCU 102 may sample the received broadcast audio data according to the broadcast time of the program. After receiving the broadcast audio data sent by the terminal device, MCU 102 may obtain a sampling time corresponding to the timestamp, and sample the broadcast audio data according to the sampling time to obtain target audio data. Thus, when MCU 102 transmits the target audio data to the server, the amount of data to be transmitted can be reduced, saving transmission time.
In addition, MCU 102 may also determine the sampling time and the sampling interval according to the hardware configuration of the server, for example, if the hardware configuration of the server is higher, a longer sampling time and a shorter sampling interval may be set, for example, the sampling time may be set to 15 seconds, and the sampling interval may be set to 5 seconds; if the hardware configuration of the server is low, a shorter sampling time and a longer sampling interval may be set, for example, the sampling time may be set to 5 seconds and the sampling interval may be set to 10 seconds. The MCU 102 may also determine a sampling time and a sampling interval according to the number of preset radio broadcast stations in the server, for example, if the number of preset radio broadcast stations is large, it indicates that there are many radio broadcast stations to be monitored and the data size of the target audio data to be received is large, a shorter sampling time and a longer sampling interval may be set; if the number of preset radio broadcasting stations is small, which means that the number of radio broadcasting stations to be monitored is small, and the data volume of target audio data to be received is small, a longer sampling time and a shorter sampling interval can be set.
In another possible implementation manner, after receiving the broadcast audio data sent by the terminal device, the MCU 102 may compress the broadcast audio data according to a preset compression rate to obtain the target audio data. The preset compression rate may be determined according to the transmission capability of the wireless transmission module 103, or may be determined according to the compression rate of the preset audio format. For example, the broadcast audio data may be compressed into the target audio data according to a preset compression rate, or the broadcast audio data may be compressed into a preset audio format, for example, an MP3 format, and the present disclosure does not limit the compression manner. Thus, when MCU 102 transmits the target audio data to the server, the amount of data to be transmitted can be reduced, saving transmission time.
In addition, after receiving the broadcast audio data sent by the terminal device, the MCU 102 may add user information to the broadcast audio data, where the user information is user information logged in the multimedia data acquisition device, so that the server may count the listening rate of the radio station according to the user after receiving the target audio data sent by the MCU 102; after receiving the broadcast audio data sent by the terminal device, MCU 102 may further add an identifier of a multimedia data acquisition device to the broadcast audio data, so that after receiving the target audio data sent by MCU 102, the server may count the listening rate of the radio station according to the identifier of the multimedia data acquisition device.
As shown in fig. 2, the multimedia data acquisition device may further include a switch button 104 and a power supply 105, the switch button 104 is connected to the MCU 102, the power supply 105 is respectively connected to the bluetooth chip 101, the MCU 102 and the wireless transmission module 103, the switch button 104 is configured to turn on or turn off the multimedia data acquisition device, and the power supply 105 is configured to supply power to the multimedia data acquisition device.
Through the technical scheme, the MCU 102 can receive the broadcast audio data sent by the terminal device through the bluetooth chip 101, obtain the target audio data according to the broadcast audio data, and send the target audio data to the server through the wireless transmission module 103, so that the server can determine the target wireless broadcast station corresponding to the broadcast audio data played in the terminal device according to the target audio data. That is to say, when a user listens to the wireless broadcasting station through the terminal device, the MCU can directly acquire the broadcasting audio data played by the terminal device, and the broadcasting audio data is not affected by environmental noise, volume, distance, and other factors, so after the MCU acquires the target audio data according to the broadcasting audio data and sends the target audio data to the server, the target wireless broadcasting station determined by the server according to the target audio data is more accurate.
Fig. 3 is a schematic structural diagram of a multimedia data acquisition system according to an embodiment of the present disclosure. As shown in fig. 3, the system includes a multimedia data acquisition device and a server.
And the server is used for receiving the target audio data sent by the multimedia data acquisition equipment according to the broadcast audio data and determining a target radio station corresponding to the broadcast audio data played in the terminal equipment from at least one preset radio station.
The target audio data comprises a time stamp added by the MCU in the multimedia data acquisition equipment in the received broadcast audio data, the broadcast audio data is sampled according to the sampling time corresponding to the time stamp, and the obtained audio data is obtained, wherein the time stamp comprises the time when the MCU receives the broadcast audio data.
In a possible implementation manner, the server is configured to obtain audio data of at least one preset radio station corresponding to the timestamp, obtain matching audio data matched with the target audio data from the audio data of the at least one preset radio station according to the sampling time, and use the preset radio station corresponding to the matching audio data as the target radio station.
After the server receives the target audio data sent by the multimedia data acquisition device, the audio data of at least one preset radio station corresponding to the timestamp in the target audio data may be obtained, for example, if the time for the MCU to receive the broadcast audio data in the timestamp is 9 o 'clock, the audio data of at least one preset radio station at 9 o' clock may be obtained. Then, the server may obtain sampled audio data corresponding to the sampling time from the audio data of each preset radio station, compare the target audio data with the sampled audio data, determine that the sampled audio data is used as matching audio data that matches the target audio data if the target audio data is the same as the sampled audio data, for example, if the sampling time is 15 seconds, obtain corresponding 15 seconds of sampled audio data from the audio data of each preset radio station, compare the target audio data with the sampled audio data, use the sampled audio data that is the same as the target audio data as matching audio data, and use the preset radio station corresponding to the matching audio data as the target radio station.
In addition, if a plurality of preset radio broadcasting stations for broadcasting the broadcast audio data are determined, an application program for broadcasting the broadcast audio data in the terminal equipment can be acquired; a target radio broadcast station is determined from a plurality of preset radio broadcast stations according to the application program.
For example, if the terminal device uses the network station application to play the broadcast audio data and determines that there are two preset radio broadcast stations playing the broadcast audio data, for example, if it is determined that both the preset radio broadcast station a and the preset radio broadcast station B play the broadcast audio data and the obtained application program of the terminal device playing the broadcast audio data is the preset radio broadcast station B, it may be determined that the target radio broadcast station is the preset radio broadcast station B.
Through the technical scheme, after the server receives the target audio data sent by the multimedia data acquisition equipment according to the broadcast audio data, the preset radio station playing the target audio data can be determined, namely the target radio station corresponding to the broadcast audio data played in the terminal equipment. That is to say, when a user listens to the wireless broadcasting station through the terminal device, the broadcasting audio data played by the terminal device can be acquired through the multimedia data acquisition device, and the broadcasting audio data is not influenced by factors such as environmental noise, volume, distance and the like, so that a target wireless broadcasting station determined by the server according to the target audio data is more accurate.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure. It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A multimedia data acquisition device, comprising: the system comprises a Bluetooth chip, a Micro Control Unit (MCU) and a wireless transmission module, wherein the MCU is respectively connected with the Bluetooth chip and the wireless transmission module;
the MCU is used for receiving broadcast audio data sent by the terminal equipment through the Bluetooth chip, acquiring target audio data according to the broadcast audio data, and sending the target audio data to the server through the wireless transmission module, so that the server can determine a target wireless broadcast station corresponding to the broadcast audio data played in the terminal equipment according to the target audio data.
2. The device of claim 1, wherein the bluetooth chip is further configured to: after receiving a Bluetooth connection request message sent by the terminal equipment, the Bluetooth connection request message is used for requesting to establish Bluetooth connection with audio playing equipment, and the Bluetooth connection with the audio playing equipment is established according to the Bluetooth connection request message;
the MCU is further used for sending the received broadcast audio data to the audio playing device, so that the terminal device can play the broadcast audio data through the audio playing device.
3. The device of claim 1, wherein the MCU is further configured to:
and adding a timestamp to the received broadcast audio data to obtain the target audio data, wherein the timestamp comprises the time when the MCU receives the broadcast audio data.
4. The device of claim 3, wherein the MCU is further configured to:
acquiring sampling time corresponding to the timestamp;
and sampling the broadcast audio data according to the sampling time to obtain the target audio data.
5. The device of claim 1, wherein the MCU is further configured to:
and compressing the broadcast audio data according to a preset compression rate to obtain the target audio data.
6. The device of any of claims 1 to 5, wherein the MCU is further configured to:
adding user information to the broadcast audio data.
7. A multimedia data collection system, comprising: a multimedia data acquisition device and a server, wherein the multimedia data acquisition device comprises the multimedia data acquisition device of any one of the preceding claims 1 to 6;
the server is used for receiving target audio data sent by the multimedia data acquisition equipment according to the broadcast audio data and determining a target radio station corresponding to the broadcast audio data played in the terminal equipment from at least one preset radio station.
8. The system according to claim 7, wherein the target audio data includes audio data obtained by adding a timestamp to the received broadcast audio data by an MCU in the multimedia data acquisition device and sampling the broadcast audio data according to a sampling time corresponding to the timestamp, and the timestamp includes a time when the MCU receives the broadcast audio data;
the server is further configured to obtain audio data of at least one preset radio station corresponding to the timestamp, obtain matching audio data matched with the target audio data from the audio data of the at least one preset radio station according to the sampling time, and use the preset radio station corresponding to the matching audio data as the target radio station.
9. The system of claim 8, wherein the server is further configured to:
acquiring sampling audio data corresponding to the sampling time from the audio data of each preset radio station;
and if the target audio data is the same as the sampled audio data, determining the sampled audio data as matched audio data matched with the target audio data.
10. The system of any of claims 7 to 9, wherein the server is further configured to:
if it is determined that there are a plurality of preset radio broadcast stations playing the broadcast audio data, an application program playing the broadcast audio data in the terminal device can be acquired;
and determining the target wireless broadcasting station from a plurality of preset wireless broadcasting stations according to the application program.
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| CN114648865A (en) * | 2020-12-18 | 2022-06-21 | 瑞昱半导体股份有限公司 | Bluetooth audio broadcasting system and multi-member Bluetooth device |
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| CN114648865A (en) * | 2020-12-18 | 2022-06-21 | 瑞昱半导体股份有限公司 | Bluetooth audio broadcasting system and multi-member Bluetooth device |
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