CN103888865A - Bluetooth headset shield and digital signature method thereof - Google Patents
Bluetooth headset shield and digital signature method thereof Download PDFInfo
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Abstract
The invention discloses a Bluetooth headset shield and a digital signature method of the Bluetooth headset shield. Information of a digital signature to be signed by a user is played through a headset of the Bluetooth headset through the first-generation Bluetooth headset shield; compared with a method for installing a display screen on the Bluetooth headset shield and displaying digital signature information through the display screen in the prior art, the Bluetooth headset shield and the digital signature method have the advantage that security of the digital signature information is improved on the basis of not increasing the hardware cost of the Bluetooth headset shield; by means of the method for displaying the digital signature information through the headset, people except the user are prevented from hearing or seeing the digital signal information, and security of the digital signature information is further improved.
Description
Technical Field
The invention relates to the field of information security, in particular to a Bluetooth headset shield and a digital signature method thereof.
Background
Since the first generation bluetooth headset shield is not provided with a display screen and cannot display transaction information on the bluetooth headset shield, there may be a risk that the digital signature information to be signed by the user is illegally tampered in the process that the terminal communicating with the first generation bluetooth headset shield sends the corresponding digital signature information to the bluetooth headset shield. The second generation Bluetooth headset shield is provided with the display screen, so that the second generation Bluetooth headset shield can display digital signature information signed by a user through the display screen, the user can confirm the digital signature information based on the display screen and trigger signature operation of the second generation Bluetooth headset shield after confirmation, the safety is improved, and meanwhile, the hardware cost of the Bluetooth headset shield is also improved.
Therefore, how to improve the security of the digital signature information of the bluetooth headset shield without increasing the hardware cost of the bluetooth headset shield becomes a problem to be solved urgently.
Disclosure of Invention
In view of the above, it is desirable to provide a bluetooth headset shield and a digital signature method thereof, so as to solve the problem that the hardware cost of the bluetooth headset shield is not increased while the security of the digital signature information of the bluetooth headset shield is improved.
The embodiment of the invention discloses a Bluetooth headset shield, which comprises a microprocessor, a safety chip, a power module, a microphone, a loudspeaker, a Bluetooth chip and an audio decoding chip, wherein the safety chip is connected with the microprocessor; the safety chip and the power supply module are respectively connected with the microprocessor; the microphone and the loudspeaker are respectively connected with the audio decoding chip; the Bluetooth chip is simultaneously connected with the microprocessor and the audio decoding chip;
the Bluetooth chip is used for receiving a wireless connection request sent by a terminal based on a Bluetooth technology, establishing a Bluetooth channel with the terminal and performing wireless communication connection; receiving an operation request for executing a digital signature sent by the terminal based on the established wireless communication connection, and sending the operation request to the microprocessor;
the microprocessor is used for converting the digital signature information mapped by the operation request into audio data and sending the converted audio data to the audio decoding chip;
the audio decoding chip is used for playing the converted audio data, so that a user can trigger digital signature operation according to the digital signature information corresponding to the audio data.
Preferably, the bluetooth chip is further configured to:
based on the established wireless communication connection request, sending an operation request for acquiring the IP address of the terminal to the terminal; receiving IP address information returned by the terminal and sending the IP address information to the microprocessor;
the microprocessor is further configured to: identifying the region where the terminal is located according to the IP address; according to the identified region where the terminal is located, searching a stored audio database and audio data corresponding to the official language mapped by the region, and sending the searched audio data corresponding to the official language mapped by the region to the audio decoding chip;
the audio decoding chip is further configured to: and playing the audio data by adopting the official language corresponding to the region according to the searched audio data corresponding to the official language mapped by the region.
Preferably, the audio decoding chip is further configured to:
playing the converted audio data according to the official language corresponding to the region where the terminal is frequently used; or,
and playing the converted audio data according to the default language set by the microprocessor.
Preferably, the bluetooth headset shield further provides a language switching key for the user to select a language adopted by the audio decoding chip to play the audio data based on the language switching key;
and the language switching key is connected with the microprocessor or the audio decoding chip.
Preferably, the microprocessor is further configured to:
and pre-establishing a note database for storing note data, wherein the note data is used when the audio decoding chip plays the audio data.
An embodiment of the present invention further provides a digital signature method based on the bluetooth headset shield of claim 1, including the following steps:
the Bluetooth headset shield receives a wireless connection request sent by a terminal based on a Bluetooth technology, establishes a Bluetooth channel with the terminal and performs wireless communication connection;
based on the established wireless communication connection, the Bluetooth headset shield receives an operation request for executing digital signature sent by the terminal;
and the Bluetooth headset shield converts the digital signature information mapped by the operation request into audio data, and plays the converted audio data, so that a user can trigger digital signature operation according to the digital signature information corresponding to the audio data.
Preferably, the playing the converted audio data comprises:
based on the established wireless communication connection request, sending an operation request for acquiring the IP address of the terminal to the terminal;
when IP address information returned by the terminal is received, identifying the region where the terminal is located according to the IP address information;
and playing the audio data by adopting an official language corresponding to the region according to the recognized region where the terminal is located.
Preferably, the playing the converted audio data comprises:
playing the converted audio data according to the official language corresponding to the region where the terminal is frequently used; or,
and playing the converted audio data according to the default language set by the Bluetooth headset shield.
Preferably, the playing the converted audio data comprises:
receiving a language selection instruction triggered by a language switching key provided by a user based on the Bluetooth headset shield;
selecting the language mapped by the language selection instruction;
and playing the converted audio data according to the language mapped by the language selection instruction.
Preferably, the step of the bluetooth headset shield receiving the wireless connection request sent by the terminal based on the bluetooth technology further includes the steps of:
the method comprises the steps that a note database used for storing note data is established in advance by the Bluetooth earphone shield, and the note data is used by the Bluetooth earphone shield when the audio data is played.
The embodiment of the invention utilizes a generation of Bluetooth earphone shield to play the digital signature information signed by a user through the earphone of the Bluetooth earphone shield; compared with the prior art, the method for displaying the digital signature information by arranging the display screen on the Bluetooth headset shield and utilizing the arranged display screen has the beneficial effect that the safety of the digital signature information is improved on the basis of not increasing the hardware cost of the Bluetooth headset shield; by adopting the method for playing the digital signature information through the earphone disclosed by the embodiment of the invention, people except the user are prevented from hearing or seeing the digital signature information, and the safety of the digital signature information is further improved.
Drawings
FIG. 1 is a diagram of functional modules of a Bluetooth headset shield according to a first embodiment of the present invention;
FIG. 2 is a diagram of functional modules of a Bluetooth headset shield according to a second embodiment of the present invention;
FIG. 3 is a diagram of functional modules of a Bluetooth headset shield according to a third embodiment of the present invention;
fig. 4 is a flowchart illustrating a first embodiment of a digital signature method of the bluetooth headset shield according to the present invention, based on the bluetooth headset shield shown in fig. 1, 2 or 3;
fig. 5 is a flowchart illustrating a second embodiment of the digital signature method based on the bluetooth headset shield shown in fig. 1, 2 or 3 according to the present invention.
The implementation, functional features and advantages of the objects of the embodiments of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the specific embodiments in the specification. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides a schematic diagram of a functional module of a Bluetooth headset shield in a first embodiment; as shown in fig. 1, in the embodiment of the present invention, the bluetooth headset shield includes a microprocessor 01, a security chip 02, a power module 03, a microphone 04, a speaker 05, a bluetooth chip 06, and an audio decoding chip 07; the safety chip 02 and the power module 03 are respectively connected with the microprocessor 01; the microphone 04 and the loudspeaker 05 are respectively connected with the audio decoding chip 07; the Bluetooth chip 06 is connected with the microprocessor 01 and the audio decoding chip 07 at the same time.
In this embodiment, the bluetooth headset shield uses the power module 03 to supply power to the whole bluetooth headset shield, the bluetooth headset shield uses the microprocessor 01 and the security chip 02 to realize the function of the conventional U shield, and uses the bluetooth chip 06 to perform data communication with the terminal; meanwhile, the Bluetooth headset shield realizes the functions of a common headset by using the microprocessor 01, the microphone 04, the loudspeaker 05 and the audio decoding chip 07; of course, in order to improve the security of the transmitted information, the transmitted information may be encrypted or decrypted by using the security chip 02 while realizing the function of the general headset.
In the embodiment of the present invention, the bluetooth chip 06 is configured to receive a wireless connection request sent by a terminal based on a bluetooth technology, establish a bluetooth channel with the terminal, and perform wireless communication connection; receiving an operation request for executing a digital signature sent by the terminal based on the established wireless communication connection, and sending the operation request to the microprocessor 01;
the Bluetooth headset shield in the embodiment of the invention has the function of a headset, and simultaneously has the function of wireless connection with other terminals based on the Bluetooth technology because the Bluetooth chip 06 is arranged in the Bluetooth headset shield.
The terminal is started, after an operation instruction for connecting the Bluetooth headset shield triggered by a user is detected, the Bluetooth headset shield which can be searched at present is searched, and a wireless connection request is sent to the Bluetooth headset shield selected by the user according to a selection instruction triggered by the user. When the Bluetooth headset shield receives a wireless connection request sent by the terminal based on the Bluetooth technology by using the Bluetooth chip 06, a Bluetooth channel is established with the terminal, and wireless communication is carried out with the terminal based on the Bluetooth technology, so that wireless connection with the terminal is realized.
In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile device such as a smart phone and a tablet computer, or a terminal such as a PC, as long as the terminal device can realize mobile payment such as internet banking and payment treasures. In this embodiment, the bluetooth chip 06 in the bluetooth headset shield is replaced by an NFC (near field Communication) module, a radio frequency module, a Wifi (Wireless fidelity) module, and other modules capable of performing wired and/or Wireless Communication with the terminal, which are all considered as equivalent replacements of this embodiment.
The microprocessor 01 is configured to convert the digital signature information mapped by the operation request into audio data, and send the converted audio data to the audio decoding chip 07;
and after the communication connection with the corresponding Bluetooth headset shield is successful, the terminal sends an operation request for establishing the service to the Bluetooth headset shield based on the established wireless communication connection and an operation instruction triggered by the user, wherein the operation request for establishing the service comprises an operation request for executing the digital signature. Since the bluetooth headset shield has both the function of a conventional bluetooth headset and the function of a U shield, the terminal may send an operation request for establishing a bluetooth shield service and/or an audio data service to the bluetooth headset shield. When receiving a data service request sent by a terminal, a Bluetooth headset shield firstly judges the type of the data service request and carries out data communication with the terminal based on the identified type of the data service request. In this embodiment, when the bluetooth headset shield receives a data service request sent by a terminal through the bluetooth chip 06, the microprocessor 01 identifies that the type of the data service request is a bluetooth shield service, and the bluetooth headset shield executes a corresponding digital signature operation according to an operation request for executing a digital signature sent by the terminal.
The execution process of the bluetooth headset shield receiving the operation request for executing the digital signature sent by the terminal by using the bluetooth chip 06 can also be realized by the following steps: the terminal sends an operation request for acquiring digital signature information corresponding to an operation instruction to a server according to the operation instruction of the digital signature triggered by a user, wherein the operation request simultaneously carries associated information for wirelessly connecting the terminal and a Bluetooth headset shield; when receiving an operation request for acquiring digital signature information sent by a terminal, a server sends the digital signature information corresponding to the operation request to a Bluetooth headset shield associated with the terminal according to associated information with the Bluetooth headset shield carried in the operation request.
The audio decoding chip 07 is configured to play the converted audio data, so that a user can trigger a digital signature operation according to the digital signature information corresponding to the audio data.
The Bluetooth headset shield receives the digital signature information mapped by the operation request sent by the server through the Bluetooth chip 06, converts the digital signature information into audio data through the audio decoding chip 07, and plays the converted audio data to the user through the loudspeaker 05, so that the user can trigger a digital signature instruction according to the digital signature information corresponding to the audio data played by the Bluetooth headset shield, and the terminal further executes digital signature operation according to the digital signature instruction triggered by the user. The digital signature information comprises any one or combination of a plurality of information such as an account number, a user name, a user identity card number, a transaction type, a transaction amount and a verification code.
In this embodiment, the playing mode of the bluetooth headset shield using the audio decoding chip 07 to play the converted audio data mainly includes the following:
the first mode is as follows: the Bluetooth headset shield sends an operation request for acquiring the IP address currently used by the terminal to the terminal by using a Bluetooth chip 06 based on the established wireless communication connection request; after receiving an operation request for acquiring an IP address sent by a Bluetooth headset shield, a terminal acquires the IP address currently used by the terminal and sends the IP address to the Bluetooth headset shield; when the bluetooth headset shield receives the IP address information returned by the terminal, the microprocessor 01 identifies the region where the terminal is located according to the IP address information, searches the stored audio database for audio data corresponding to the official language mapped by the region, and sends the searched audio data corresponding to the official language mapped by the region to the audio decoding chip 07; and the audio decoding chip 07 is used for playing the audio data by adopting an official language corresponding to the region according to the region of the terminal identified by the microprocessor 01. For example, if the region corresponding to the IP address currently used by the terminal, which is obtained by the microprocessor 01, of the audio decoding chip 07 is chinese, the audio decoding chip 07 uses the speaker 05 to play the audio data in chinese. When the terminal does not allow the IP address used by the terminal to be sent to the Bluetooth headset shield, the terminal sends a response message for refusing to obtain the IP address of the terminal to the Bluetooth headset shield; when the bluetooth chip 06 of the bluetooth headset shield receives a response message that the terminal refuses to acquire the sending IP address, the response message that the terminal refuses to acquire the IP address is sent to the microprocessor 01, and the microprocessor 01 controls the audio decoding chip 07 to play the converted audio data in the default language.
The second way is: the microprocessor 01 of the bluetooth headset shield acquires a frequently-used region of the terminal according to historical data of communication connection established with the terminal, and searches the official language corresponding to the frequently-used region, so as to control the audio decoding chip 07 to play the converted audio data according to the official language corresponding to the frequently-used region of the terminal. For example, if the common area of the terminal is the united states, the microprocessor 01 controls the audio decoding chip 07 to play the audio data in american english. Or, the microprocessor 01 controls the audio decoding chip 07 to directly play the converted audio data according to the default language set by the microprocessor 01. The default language set by the microprocessor 01 includes: according to the release area of the Bluetooth headset shield, setting the official language type corresponding to the release area as the default language type of the audio data played by the Bluetooth headset shield when the Bluetooth headset shield leaves a factory; for example, if the putting area of the bluetooth headset shield is Chinese, the default language is set as Chinese; the putting area of the Bluetooth headset shield is France, and the default language is French and the like. In addition, for Chinese, although there are more than 6500 Chinese characters, the pronunciation is only about 1220; the 1220 note data (the quality is not very good, but the human ear can accept and can distinguish) is only about 400KB, so the occupied storage space is not large; other languages are similar and will not be described herein. In this embodiment, since the storage space occupied by the note data is not large, the microprocessor 01 may store the note data in the storage space corresponding to the microprocessor 01; of course, the bluetooth headset shield may also be provided with a memory, and the provided memory is used to store the note data.
The third mode is as follows: based on another embodiment of the bluetooth headset shield shown in fig. 2 or fig. 3, a language switching button 08 is provided in fig. 2 and fig. 3; fig. 2 is a schematic diagram of functional modules of a bluetooth headset shield according to a second embodiment of the present invention, wherein a language switching button 08 disposed in fig. 2 is connected to a microprocessor 01; fig. 3 is a schematic diagram of a functional module of a bluetooth headset shield according to a third embodiment of the present invention, and a language switching button 08 disposed in fig. 3 is connected to an audio decoding chip 07. In the bluetooth headset shield shown in fig. 2, the bluetooth headset shield is provided with a language switching key 08, so that a user can select a corresponding playing language based on the language switching key 08; the language switching button 08 is connected with the microprocessor 01. The method comprises the steps that a microprocessor 01 of a Bluetooth headset shield receives a language selection instruction triggered by a language switching key 08 provided by a user based on the Bluetooth headset shield, the microprocessor 01 controls the language switching key 08 to switch to a language mapped by the language selection instruction, and then the microprocessor 01 controls an audio decoding chip 07 to play audio data after conversion according to the language mapped by the language selection instruction according to the language mapped by the language switching key 08. For example, the bluetooth headset shield provides four languages of chinese, english, french, and german, and the bluetooth headset shield sets the language switching key 08 and correspondingly sets four switching gears of the language switching key 08, and the four switching gears respectively correspond to the four languages for the user to select; and according to a language selection instruction triggered by the user based on the language switching key 08, playing the corresponding audio data by using the language corresponding to the language switching instruction.
In the bluetooth headset shield shown in fig. 3, the language switching button 08 of the bluetooth headset shield is directly connected to the audio decoding chip 07. When the language switching button 08 receives a language selection instruction triggered by a user, switching to a language corresponding to the language selection instruction according to the language selection instruction, and sending the switched language information including the language type to the audio decoding chip 07; the audio decoding chip 07 receives the language information containing the language type sent by the language switching key 08, and plays the corresponding audio data according to the language type in the language information.
The embodiment of the invention utilizes a generation of Bluetooth earphone shield to play the digital signature information signed by a user through the earphone of the Bluetooth earphone shield; compared with the prior art, the method for displaying the digital signature information by arranging the display screen on the Bluetooth headset shield and utilizing the arranged display screen has the beneficial effect that the safety of the digital signature information is improved on the basis of not increasing the hardware cost of the Bluetooth headset shield; by adopting the method for playing the digital signature information through the earphone disclosed by the embodiment of the invention, people except the user are prevented from hearing or seeing the digital signature information, and the safety of the digital signature information is further improved; furthermore, the bluetooth headset shield also provides a language switching button 08 for the user to select the language to play, so that the intelligence and man-machine interaction of the bluetooth headset shield are improved.
Referring to fig. 1, fig. 2, or fig. 3 again, in the bluetooth headset shield of the present invention, the microprocessor 01 is further configured to:
a note database for storing note data used when the audio decoding chip 07 plays the audio data is established in advance.
In this embodiment, the microprocessor 01 of the bluetooth headset shield pre-establishes a note database for storing note data used when playing audio data. The note database can be set before the bluetooth headset shield leaves the factory, or the note database can be updated by a user or a developer according to requirements after the bluetooth headset shield leaves the factory, for example, note data stored in the note database is added or deleted; for example, the bluetooth headset shield only stores the chinese note data corresponding to the chinese pronunciation before shipment, and after shipment, the bluetooth headset shield needs to be released to japan, so that the japanese note data corresponding to the japanese pronunciation can be added to the note database, and the stored chinese note data can be deleted as needed. That is, the microprocessor 01 of the bluetooth headset shield can update the note data stored in the note database according to the operation instruction triggered by the user.
Because the Chinese pronunciation is only about 1220, and the 1220 note data only occupy about 400KB of storage space, the storage space required for storing the note data is not large; other languages are similar and will not be described herein. In this embodiment, since the storage space occupied by the note data is not large, the microprocessor 01 may set the note database storing the note data in the storage space corresponding to the microprocessor 01; of course, the bluetooth headset shield may also be provided with a memory, and the provided memory is used to store the note database.
According to the embodiment of the invention, the musical note database is established, so that the diversity and the flexibility of audio data playing are improved, the intelligence of the Bluetooth headset shield is further improved, the application range of the Bluetooth headset shield is expanded, and the man-machine interactivity is enhanced.
The embodiment of the invention provides a digital signature method, which is executed by the bluetooth headset shield described in fig. 1, fig. 2 or fig. 3; as shown in fig. 4, the digital signature method based on the bluetooth headset shield shown in fig. 1, 2 or 3 includes the following steps:
step S01, the Bluetooth headset shield receives a wireless connection request sent by a terminal based on Bluetooth technology, establishes a Bluetooth channel with the terminal and performs wireless communication connection;
the Bluetooth headset shield in the embodiment of the invention has the function of the headset, and simultaneously has the function of wireless connection with other terminals based on the Bluetooth technology because the Bluetooth chip is arranged in the Bluetooth headset shield.
The terminal is started, after an operation instruction for connecting the Bluetooth headset shield triggered by a user is detected, the Bluetooth headset shield which can be searched at present is searched, and a wireless connection request is sent to the Bluetooth headset shield selected by the user according to a selection instruction triggered by the user. When the Bluetooth earphone shield receives a wireless connection request sent by the terminal based on the Bluetooth technology, a Bluetooth channel is established with the terminal, wireless communication is carried out with the terminal based on the Bluetooth technology, and wireless connection with the terminal is achieved.
In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile device such as a smart phone and a tablet computer, or a terminal such as a PC, as long as the terminal device can realize mobile payment such as internet banking and payment treasures. In addition, in this embodiment, replacing the bluetooth chip in the bluetooth headset shield with a module capable of performing wired and/or Wireless Communication with the terminal, such as an NFC (near field Communication) module, a radio frequency module, a Wifi (Wireless fidelity) module, and the like, is considered as an equivalent replacement of this embodiment.
Step S02, based on the established wireless communication connection, the Bluetooth headset shield receives the operation request for executing the digital signature sent by the terminal;
and after the communication connection with the corresponding Bluetooth headset shield is successful, the terminal sends an operation request for establishing the service to the Bluetooth headset shield based on the established wireless communication connection and an operation instruction triggered by the user, wherein the operation request for establishing the service comprises an operation request for executing the digital signature. Since the bluetooth headset shield has both the function of a conventional bluetooth headset and the function of a U shield, the terminal may send an operation request for establishing a bluetooth shield service and/or an audio data service to the bluetooth headset shield. When receiving a data service request sent by a terminal, a Bluetooth headset shield firstly judges the type of the data service request and carries out data communication with the terminal based on the identified type of the data service request. In this embodiment, when the bluetooth headset shield receives a data service request sent by a terminal, it identifies that the type of the data service request is a bluetooth shield service, and then the bluetooth headset shield executes a corresponding digital signature operation according to an operation request for executing a digital signature sent by the terminal.
The execution process of the bluetooth headset shield receiving the operation request for executing the digital signature sent by the terminal can be further realized by the following steps: the terminal sends an operation request for acquiring digital signature information corresponding to an operation instruction to a server according to the operation instruction of the digital signature triggered by a user, wherein the operation request simultaneously carries associated information for wirelessly connecting the terminal and a Bluetooth headset shield; when receiving an operation request for acquiring digital signature information sent by a terminal, a server sends the digital signature information corresponding to the operation request to a Bluetooth headset shield associated with the terminal according to associated information with the Bluetooth headset shield carried in the operation request.
And step S03, the Bluetooth headset shield converts the digital signature information mapped by the operation request into audio data, and plays the converted audio data, so that the user can trigger digital signature operation according to the digital signature information corresponding to the audio data.
The Bluetooth headset shield receives the digital signature information mapped by the operation request sent by the server, the digital signature information is converted into audio data by using the audio decoding chip, the converted audio data is played to a user through a loudspeaker, the user triggers a digital signature instruction according to the digital signature information corresponding to the audio data played by the Bluetooth headset shield, and the terminal executes digital signature operation according to the digital signature instruction triggered by the user. The digital signature information comprises any one or combination of a plurality of information such as an account number, a user name, a user identity card number, a transaction type, a transaction amount and a verification code.
In this embodiment, the playing mode of the bluetooth headset shield that the audio decoding chip is used to play the converted audio data mainly includes the following:
the first mode is as follows: the Bluetooth headset shield sends an operation request for acquiring the IP address currently used by the terminal to the terminal based on the established wireless communication connection request; after receiving an operation request for acquiring an IP address sent by a Bluetooth headset shield, a terminal acquires the IP address currently used by the terminal and sends the IP address to the Bluetooth headset shield; when receiving the IP address information returned by the terminal, the Bluetooth headset shield identifies the region where the terminal is located according to the IP address information; and then according to the identified region where the terminal is located, the Bluetooth headset shield adopts an official language corresponding to the region to play the audio data. For example, if the region corresponding to the acquired IP address currently used by the terminal is china, the bluetooth headset shield plays the audio data in chinese. When the terminal does not allow the IP address used by the terminal to be sent to the Bluetooth headset shield, the terminal sends a response message for refusing to obtain the IP address of the terminal to the Bluetooth headset shield; and when the Bluetooth headset shield receives a response message that the terminal refuses to acquire the IP address, the Bluetooth headset shield plays the converted audio data by using the default language.
The second way is: the Bluetooth headset shield acquires the frequently-used region of the terminal according to the historical data of communication connection with the terminal, and plays the converted audio data according to the official language corresponding to the region where the frequently-used terminal is located. For example, if the common area of the terminal is the united states, the bluetooth headset shield plays the audio data by using american english. Or the Bluetooth headset shield directly plays the converted audio data according to the default language set by the Bluetooth headset shield. Wherein, the default language type that bluetooth headset shield set up includes: according to the release area of the Bluetooth headset shield, setting the official language type corresponding to the release area as the default language type of the audio data played by the Bluetooth headset shield when the Bluetooth headset shield leaves a factory; for example, if the putting area of the bluetooth headset shield is Chinese, the default language is set as Chinese; the putting area of the Bluetooth headset shield is France, and the default language is French and the like. In addition, for Chinese, although there are more than 6500 Chinese characters, the pronunciation is only about 1220; the 1220 note data (the quality is not very good, but the human ear can accept and can distinguish) is only about 400KB, so the occupied storage space is not large; other languages are similar and will not be described herein.
The third mode is as follows: based on the bluetooth headset shield described in fig. 2 or fig. 3, the bluetooth headset shield is provided with a language switching key for a user to select a corresponding playing language based on the language switching key; the Bluetooth headset shield receives a language selection instruction triggered by a user based on a language switching key provided by the Bluetooth headset shield, selects a language mapped by the language selection instruction, and plays the converted audio data according to the language mapped by the language selection instruction. For example, the bluetooth headset shield provides four languages of chinese, english, french, and german, and the bluetooth headset shield sets a language switching key and correspondingly sets four switching gears of the language switching key, where the four switching gears respectively correspond to the four languages for the user to select; and playing the corresponding audio data by using the language corresponding to the language switching instruction according to the language selection instruction triggered by the user based on the language switching key.
The embodiment of the invention utilizes a generation of Bluetooth earphone shield to play the digital signature information signed by a user through the earphone of the Bluetooth earphone shield; compared with the prior art, the method for displaying the digital signature information by arranging the display screen on the Bluetooth headset shield and utilizing the arranged display screen has the beneficial effect that the safety of the digital signature information is improved on the basis of not increasing the hardware cost of the Bluetooth headset shield; by adopting the method for playing the digital signature information through the earphone disclosed by the embodiment of the invention, people except the user are prevented from hearing or seeing the digital signature information, and the safety of the digital signature information is further improved.
The invention also provides a second embodiment of the digital signature method based on the Bluetooth headset shield shown in the figure 1 or the figure 2 or the figure 3; the difference between this embodiment and the embodiment shown in fig. 4 is that the bluetooth headset shield establishes a note database for storing note data, so that the bluetooth headset shield can play corresponding audio data according to the note database.
Based on the above description of the embodiments, as shown in fig. 5, the digital signature method of the bluetooth headset shield shown in fig. 1, 2, or 3 according to the present invention further includes, before "step S01, the bluetooth headset shield receives a wireless connection request sent by a terminal based on bluetooth technology, establishes a bluetooth channel with the terminal, and performs wireless communication connection", the steps of:
step S10, the Bluetooth headset shield establishes a note database for storing note data in advance;
in this embodiment, the bluetooth headset shield pre-establishes a note database, and the note database is used for storing note data used when playing audio data. The note database can be set before the bluetooth headset shield leaves the factory, or the note database can be updated by a user or a developer according to requirements after the bluetooth headset shield leaves the factory, for example, note data stored in the note database is added or deleted; for example, the bluetooth headset shield only stores the chinese note data corresponding to the chinese pronunciation before shipment, and after shipment, the bluetooth headset shield needs to be released to japan, so that the japanese note data corresponding to the japanese pronunciation can be added to the note database, and the stored chinese note data can be deleted as needed. That is to say, the bluetooth headset shield can update the note data stored in the note database according to the operation instruction triggered by the user.
Because the Chinese pronunciation is only about 1220, and the 1220 note data only occupy about 400KB of storage space, the storage space required for storing the note data is not large; other languages are similar and will not be described herein.
According to the embodiment of the invention, the musical note database is established, so that the diversity and the flexibility of audio data playing are improved, the intelligence of the Bluetooth headset shield is further improved, the application range of the Bluetooth headset shield is expanded, and the man-machine interactivity is enhanced.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes that can be directly or indirectly applied to other related technical fields using the contents of the present specification and the accompanying drawings are included in the scope of the present invention.
Claims (10)
1. A Bluetooth headset shield comprises a microprocessor, a security chip, a power module, a microphone, a loudspeaker, a Bluetooth chip and an audio decoding chip; the safety chip and the power supply module are respectively connected with the microprocessor; the microphone and the loudspeaker are respectively connected with the audio decoding chip; the Bluetooth chip is simultaneously connected with the microprocessor and the audio decoding chip; it is characterized in that the preparation method is characterized in that,
the Bluetooth chip is used for receiving a wireless connection request sent by a terminal based on a Bluetooth technology, establishing a Bluetooth channel with the terminal and performing wireless communication connection; receiving an operation request for executing a digital signature sent by the terminal based on the established wireless communication connection, and sending the operation request to the microprocessor;
the microprocessor is used for converting the digital signature information mapped by the operation request into audio data and sending the converted audio data to the audio decoding chip;
the audio decoding chip is used for playing the converted audio data, so that a user can trigger digital signature operation according to the digital signature information corresponding to the audio data.
2. The bluetooth headset shield of claim 1, wherein the bluetooth chip is further configured to:
based on the established wireless communication connection request, sending an operation request for acquiring the IP address of the terminal to the terminal; receiving IP address information returned by the terminal and sending the IP address information to the microprocessor;
the microprocessor is further configured to: identifying the region where the terminal is located according to the IP address; according to the identified region where the terminal is located, searching a stored audio database and audio data corresponding to the official language mapped by the region, and sending the searched audio data corresponding to the official language mapped by the region to the audio decoding chip;
the audio decoding chip is further configured to: and playing the audio data by adopting the official language corresponding to the region according to the searched audio data corresponding to the official language mapped by the region.
3. The bluetooth headset shield of claim 1, wherein the audio decoding chip is further configured to:
playing the converted audio data according to the official language corresponding to the region where the terminal is frequently used; or,
and playing the converted audio data according to the default language set by the microprocessor.
4. The bluetooth headset shield of claim 1, wherein the bluetooth headset shield further provides a language switching key for a user to select a language used by the audio decoding chip for playing the audio data based on the language switching key;
and the language switching key is connected with the microprocessor or the audio decoding chip.
5. The method of any of claims 1-4, wherein the microprocessor is further configured to:
and pre-establishing a note database for storing note data, wherein the note data is used when the audio decoding chip plays the audio data.
6. A digital signature method based on the bluetooth headset shield of claim 1, comprising the following steps:
the Bluetooth headset shield receives a wireless connection request sent by a terminal based on a Bluetooth technology, establishes a Bluetooth channel with the terminal and performs wireless communication connection;
based on the established wireless communication connection, the Bluetooth headset shield receives an operation request for executing digital signature sent by the terminal;
and the Bluetooth headset shield converts the digital signature information mapped by the operation request into audio data, and plays the converted audio data, so that a user can trigger digital signature operation according to the digital signature information corresponding to the audio data.
7. The method of claim 6, wherein the step of playing the converted audio data comprises:
based on the established wireless communication connection request, sending an operation request for acquiring the IP address of the terminal to the terminal;
when IP address information returned by the terminal is received, identifying the region where the terminal is located according to the IP address information;
and playing the audio data by adopting an official language corresponding to the region according to the recognized region where the terminal is located.
8. The method of claim 6, wherein the step of playing the converted audio data comprises:
playing the converted audio data according to the official language corresponding to the region where the terminal is frequently used; or,
and playing the converted audio data according to the default language set by the Bluetooth headset shield.
9. The method of claim 6, wherein the step of playing the converted audio data comprises:
receiving a language selection instruction triggered by a language switching key provided by a user based on the Bluetooth headset shield;
selecting the language mapped by the language selection instruction;
and playing the converted audio data according to the language mapped by the language selection instruction.
10. The method according to any of claims 6-9, wherein the step of the bluetooth headset shield receiving the wireless connection request sent by the terminal based on bluetooth technology further comprises the steps of:
the method comprises the steps that a note database used for storing note data is established in advance by the Bluetooth earphone shield, and the note data is used by the Bluetooth earphone shield when the audio data is played.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410130002.2A CN103888865A (en) | 2014-04-01 | 2014-04-01 | Bluetooth headset shield and digital signature method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410130002.2A CN103888865A (en) | 2014-04-01 | 2014-04-01 | Bluetooth headset shield and digital signature method thereof |
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| CN103888865A true CN103888865A (en) | 2014-06-25 |
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| CN201410130002.2A Pending CN103888865A (en) | 2014-04-01 | 2014-04-01 | Bluetooth headset shield and digital signature method thereof |
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| CN (1) | CN103888865A (en) |
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Application publication date: 20140625 |