CN106303913B - Bluetooth transceiver therein and its information transceiving method - Google Patents

Abstract

The present invention provides a kind of bluetooth transceiver therein and its information transceiving method, wherein bluetooth transceiver therein is mounted with multiple bluetooth services, and it includes: to establish transmitting-receiving connection with client and receive and dispatch the characteristic information that each bluetooth service, which has the step of multiple characteristic informations, the information transceiving method,；The characteristic information received and dispatched is when needing encryption information, to start encryption transmitting-receiving mode；When encryption transmitting-receiving mode is activated, cutting transmitting-receiving connection when the characteristic information received and dispatched is continuously the cumulative number for being not required to encryption information or cumulative time greater than critical value；Encryption transmitting-receiving mode is closed after transmitting-receiving connection is cut off, and re-establishes transmitting-receiving connection, and is acted with the transmitting-receiving that non-encrypted transceiver mode carries out the characteristic information between client.Bluetooth transceiver therein and its information transceiving method provided by the invention, the energy being dynamically adapted under encryption transmitting-receiving mode and non-encrypted transceiver mode, to reduce the energy consumption of bluetooth transmitting-receiving.

Description

Bluetooth transceiver device and information transceiver method thereof

technical field

The present invention relates to a transceiver device and a data transceiver method thereof, and in particular to a Bluetooth transceiver device and an information transceiver method thereof.

Background technique

Among the wireless transmission and reception methods used today, the Bluetooth protocol is a widely used wireless data transmission and reception protocol, and the Bluetooth service has the function of encrypting communication or transmission and reception operations, so that the user can be protected in use. A general Bluetooth transceiver device may include a generic attribute profile server (Generic attribute profile server, GATT Server), and the Bluetooth service may be mounted in it. The feature information in the Bluetooth service can be encrypted and protected, that is, when the user wants to use the feature information that needs to be encrypted, the content of the feature information can only be accessed by means of authentication.

Please refer to FIG. 1 . FIG. 1 is a diagram illustrating a corresponding relationship between information sending and receiving energy and time of a bluetooth sending and receiving device in an existing bluetooth sending and receiving method. Among them, the vertical axis represents the energy of the Bluetooth transceiver device to send and receive characteristic information, and the horizontal axis represents time. The time interval TP is the time interval in which the security mode switching is performed, and before the time interval TP, the Bluetooth transceiver device performs the transmission and reception of the feature information CH1 and CH2 without encryption with a relatively low transmission and reception energy. During the time interval TP, the Bluetooth transceiver device detects that the feature information CH3 to be sent and received next is the feature information that needs to be encrypted, and starts the encryption mode, and after the time interval TP, the Bluetooth transceiver device uses high transceiving energy to perform the feature that needs to be encrypted. The transmission and reception of information CH3. It is worth noting that, under the existing Bluetooth transceiver method, after starting the encryption mode from the time interval TP, the Bluetooth transceiver device cannot stop the encryption mode even if it wants to send and receive the feature information CH4 and CH5 that do not require encryption. The data is sent and received with high sending and receiving energy, that is to say, even if the characteristic information CH4 and CH5 sent and received after the time interval TP do not need to be encrypted, the Bluetooth transceiver will still send and receive information with high sending and receiving energy, so cause unnecessary power consumption.

SUMMARY OF THE INVENTION

The present invention provides a Bluetooth transceiver and a method for information transceiver, which can dynamically adjust information transceiver, thereby reducing the power consumption of the Bluetooth transceiver.

According to the information sending and receiving method of a bluetooth transceiver of the present invention, wherein the bluetooth transceiver is mounted with a plurality of bluetooth services, and each bluetooth service has a plurality of characteristic information, and the steps of the information sending and receiving method include: establishing a sending and receiving connection with a client and sending and receiving. The feature information; when the feature information to be sent and received is the information that needs to be encrypted, the encrypted sending and receiving mode is activated; when the encrypted sending and receiving mode is activated, the feature information to be sent and received continues to be the cumulative number of times that does not need to be encrypted information or the cumulative time is greater than the critical value. Cut off the sending and receiving connection; when the sending and receiving connection is cut off, the encrypted sending and receiving mode is closed, and the sending and receiving connection is re-established, and the sending and receiving of the feature information with the client is performed in the unencrypted sending and receiving mode.

In an embodiment of the present invention, the above-mentioned transceiving energy for transceiving each feature information in the encrypted transceiving mode is greater than the transceiving energy for transceiving each feature information in the non-encrypted transceiving mode.

In an embodiment of the present invention, when the encrypted sending and receiving mode is activated, the above-mentioned step of cutting off the sending and receiving connection when the accumulated number of times or the accumulated time of the received and sent feature information continues to be no encrypted information is greater than a critical value includes: when encrypted sending and receiving When the mode is activated, it detects that the received and received feature information is encrypted information or does not need to be encrypted information; when the detected and received and received feature information is not required to be encrypted information, the cumulative number of times is increased by 1; When encrypting information, set the cumulative count to 0.

In an embodiment of the present invention, when the encrypted sending and receiving mode is activated, the above-mentioned step of cutting off the sending and receiving connection when the cumulative number of times the received and sent feature information continues to be no encrypted information or the cumulative time is greater than the threshold value includes: when encrypted When the sending and receiving mode is activated, start the timing action to obtain the accumulated time, and detect whether the sent and received feature information is encrypted information or not; when the detected feature information is encrypted information, reset the timing action cumulative time.

In an embodiment of the present invention, the above-mentioned multiple Bluetooth services are mounted in the general attribute configuration server of the Bluetooth transceiver device.

In an embodiment of the present invention, the steps of the above-mentioned method for transmitting and receiving information of a Bluetooth transceiver device further include arranging the feature information in the Bluetooth service, so that the feature information of the information to be encrypted is arranged in the first queue, and the feature information that is not the information to be encrypted is arranged in the first queue. The characteristic information of the information to be encrypted is arranged in the second queue; the information sending and receiving operation is performed for the characteristic information in the first queue, and after a time interval, the information sending and receiving operation is performed for the characteristic information in the second queue.

The Bluetooth transceiver device of the present invention includes a host, a controller and a Bluetooth entity layer; the host includes a general attribute configuration server, and a plurality of Bluetooth services are mounted in the general attribute configuration server, each Bluetooth service includes a plurality of characteristic information, and the host and the client establish a transceiver Connect and send and receive feature information; the Bluetooth physical layer and the controller are coupled to the host, wherein the host starts the encrypted sending and receiving mode when the feature information to be sent and received is the information to be encrypted, and when the encrypted sending and receiving mode is started, the sent and received When the characteristic information continues to be the cumulative number of information that does not need to be encrypted or the cumulative time is greater than the critical value, the sending and receiving connection is cut off. The host closes the encrypted sending and receiving mode after the sending and receiving connection is cut off, and re-establishes the sending and receiving connection, and communicates with the customer in a non-encrypted sending and receiving mode. The transmission and reception of feature information between terminals.

Based on the above, the Bluetooth transceiver and the method for transmitting and receiving information of the present invention use the accumulated number of times that the characteristic information to be transmitted and received continues to be information that does not require encryption or when the accumulated time is greater than a critical value, the transmission and reception connection is cut off, and the encrypted transmission and reception mode is turned off after the transmission and reception connection is cut off, And re-establish the sending and receiving connection, and perform the sending and receiving of the feature information with the client in the unencrypted sending and receiving mode, thereby dynamically adjusting the energy in the encrypted sending and receiving mode and the unencrypted sending and receiving mode, thereby reducing the energy consumption of Bluetooth sending and receiving.

In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, the following embodiments are given and described in detail with the accompanying drawings as follows.

Description of drawings

Fig. 1 is a kind of existing bluetooth sending and receiving method, the correspondence relation diagram of the information sending and receiving energy and time of the bluetooth sending and receiving device;

2 is a flowchart of steps of a method for sending and receiving information of a Bluetooth transceiver according to an embodiment of the present invention;

FIG. 3A is a schematic block diagram of a Bluetooth transceiver device 300 according to an embodiment of the present invention;

FIG. 3B is a schematic block diagram of the host 310 according to the embodiment of FIG. 3A of the present invention;

FIG. 4 is a diagram showing a corresponding relationship between information sending and receiving energy and time of a Bluetooth transceiver device according to an embodiment of the present invention.

Description of reference numbers:

S210, S220, S230, S240: steps;

TP1, TP, TP2, TP3, TP4, Tdis: time interval;

300: Bluetooth transceiver;

310: host;

320: common attribute configuration server;

330: Bluetooth entity layer;

340: controller;

SV1, SV2, SV3: Bluetooth service;

CH1, CH2, CH3, CH4, CH5, CH1_0, CH1_1, CH1_2, CH1_3~CH1_M, CH2_0, CH2_1, CH2_2, CH2_3, CH2_4~CH2_N, CH3_0, CH3_1, CH3_2~CH3_I: characteristic information.

Detailed ways

Please refer to FIG. 2 and FIG. 3A at the same time. FIG. 2 is a flowchart of a method for sending and receiving information of a Bluetooth transceiver according to an embodiment of the present invention. FIG. 3A is a block diagram of a Bluetooth transceiver 300 according to an embodiment of the present invention. A block diagram of the host 310 according to an embodiment of the invention. The information transceiving method in FIG. 2 can be applied to at least the Bluetooth transceiving apparatus 300 in FIG. 3A . In FIG. 3A , the Bluetooth transceiver 300 includes a host 310 , a Bluetooth physical layer 330 and a controller 340 . The host 310 has a general attribute configuration server 320, and the host 310 is coupled with the Bluetooth physical layer 330 and the controller 340. The general attribute configuration server 320 may mount multiple Bluetooth services, and each Bluetooth service may include multiple feature information, and each feature information may be feature information that needs to be encrypted or feature information that does not need to be encrypted. The controller 340 may adjust the Bluetooth service to perform mode switching.

Regarding the details of the transmission and reception of feature information in the embodiment of the present invention, first, in step S210, the host 310 establishes a connection for transmission and reception with the client, thereby starting the transmission and reception of the characteristic information. The host 310 may sequentially transmit each feature information of each Bluetooth service mounted in the general attribute configuration server 320 according to the set sequence. In step S220, when the host 310 interprets that the transmitted and received feature information is the information to be encrypted, the host 310 performs the switching action of the security mode, thereby enabling the encrypted transmission and reception mode (security mode), and transmits the encrypted information in the encrypted transmission and reception mode. characteristic information. In step S230, in the encrypted sending and receiving mode, once the host 310 detects that feature information that does not require encrypted information has been sent and received, the host 310 can start to calculate the cumulative number of times or the cumulative number of times that the sent and received feature information continues to be unencrypted information. time. When the host 310 determines that the cumulative number of times that the transmitted and received characteristic information continues to be information that does not require encryption is greater than a critical value (critical number of times), or the cumulative time that the transmitted and received characteristic information continues to be information that does not require encryption is greater than another threshold (critical time) ), the host 310 may cut off the transceiver connection established with the client.

Then, after a preset time after the transceiver connection of the Bluetooth transceiver 300 is cut off, the transceiver connection between the Bluetooth transceiver 300 and the client can be re-established. In this way, the Bluetooth transceiver 300 can perform communication with the client in a non-encrypted transceiver mode. The transmission and reception of the feature information (step S240).

Specifically, in the encrypted sending and receiving mode, the host 310 of the present invention re-establishes the connection with the client after a period of time after cutting off the connection with the client, so that the Bluetooth transceiver 300 can send and receive information without encryption in the unencrypted sending and receiving mode. Transceiver, so as to prevent the Bluetooth transceiver device 300 from continuously transmitting unencrypted information in the encrypted transceiver mode. In addition, when the host 310 detects whether the accumulated time or the accumulated number of times reaches a critical value, the Bluetooth transceiver device 300 can continue to dynamically determine whether to adjust the encryption transceiver mode during operation, so as to reduce the energy of Bluetooth transceivers. consume.

Please refer to FIG. 3B below. FIG. 3B is a schematic block diagram of the host 310 according to the embodiment of FIG. 3A of the present invention. The general attribute configuration server of the present invention provides the application end of the Bluetooth transceiver device to mount the Bluetooth service. Among them, the user can mount the corresponding Bluetooth service in the general attribute configuration server through the application program. In this embodiment, the general attribute configuration server 320 includes Bluetooth services SV1, SV2, and SV3, and each Bluetooth service can be provided to different devices or applications (Application) for Bluetooth transmission and reception respectively. In addition, the Bluetooth services SV1 , SV2 and SV3 may include a plurality of pieces of feature information CH1_0 - CH1_M, CH2_0 - CH2_N and CH3_0 - CH3_I, respectively. In this embodiment, among the feature information CH1_0 to CH1_M included in the Bluetooth service SV1, only the feature information CH1_2 belongs to the information that needs to be encrypted, and the rest of the feature information is the information that does not need to be encrypted. The characteristic information CH2_0 to CH2_N included in the Bluetooth service SV2 are all information that does not need to be encrypted. In addition, the characteristic information CH3_0 to CH3_I included in the Bluetooth service SV3 are all information that needs to be encrypted. It is worth noting that the present invention does not limit the number of Bluetooth services or the number of feature information they include.

FIG. 4 is a diagram showing the correspondence between the information sending and receiving energy and time of the Bluetooth transceiver according to the embodiment of FIG. 3B of the present invention. The vertical axis represents the energy of the Bluetooth transceiver device sending and receiving characteristic information, and the horizontal axis represents time. 3B and FIG. 4 at the same time, in the time interval TP1, the Bluetooth transceiver 300 transmits and receives unencrypted feature information in an unencrypted transceiver mode, for example, the feature information CH1_0 and CH2_0 that do not require encrypted information. Based on the characteristic information CH3_0 to be transceived next is the information to be encrypted, the action of enabling the encryption mode of the Bluetooth transceiving device 300 needs to be performed in the time interval TP. When the encryption mode is activated, in the time interval TP2, the transmission and reception of characteristic information that is information to be encrypted, such as characteristic information CH3_0 and CH3_1, can be performed. It is worth noting that, in this embodiment, the transceiving energy for transmitting each feature information in the encrypted transceiving mode is greater than the transceiving energy for transmitting and receiving each feature information in the non-encrypted transceiving mode. For example, the transceiving energy for transceiving the characteristic information CH3_1 (in the encrypted transceiving mode) is greater than the transceiving energy for transceiving the characteristic information CH1_0 (in the non-encrypted transceiving mode).

In this embodiment, in the time interval TP3 in the encryption mode, the transmission and reception of characteristic information that does not require encryption information, such as characteristic information CH1_1 , CH1_3 , and CH1_M, may also be performed. When the Bluetooth transceiver device 300 detects that the characteristic information sent and received in the time interval TP3 in the encryption mode is information that does not need to be encrypted, such as the characteristic information CH1_1, the host 310 can start the counting action to increase the accumulated number of times by 1, and here In the state, each time the Bluetooth transceiver 300 transmits and receives a piece of feature information that does not require encrypted information, the accumulated number of times can be increased by 1 correspondingly. Incidentally, if the Bluetooth transceiver 300 detects that the characteristic information sent and received is the information to be encrypted in this time interval, the accumulated number of times can be reset to 0.

When the counted cumulative number reaches a critical value, the Bluetooth transceiver device 300 may cut off the transceiver connection with the client within the time interval Tdis. Next, after a preset time after the transceiver connection of the Bluetooth transceiver 300 is cut off, the transceiver connection between the Bluetooth transceiver 300 and the client can be re-established, and in the time interval TP4, the unencrypted transceiver mode is changed to pass lower The energy of the characteristic information CH2_1, CH2_2, CH2_3, and CH2_4 is transmitted and received. The threshold value in this embodiment may be preset by the system or defined by the designer, which is not limited herein.

In another embodiment, when characteristic information that does not require encrypted information is detected to be transmitted and received in the time interval TP3 in the encrypted transmission and reception mode, such as characteristic information CH1_1, the host 310 starts a timing operation to obtain the accumulated time. During the timing action, if the host 310 detects that the transmitted and received feature information is information to be encrypted, the accumulated time of the timing action can be reset. On the other hand, if the Bluetooth transceiver 300 continues to perform timing operations, for example, the characteristic information CH1_1, CH1_3 and CH1_M sent and received in the time interval TP3 are not encrypted information, the host 310 will start the timing operation and generate accumulated time. If the accumulated time reaches the critical value, the Bluetooth transceiver device 300 may cut off the transceiver connection with the client within the time interval Tdis. Next, after a preset time after the Bluetooth transceiver device 300 is disconnected from the transceiver connection, the Bluetooth transceiver device 300 and the client can re-establish the transceiver connection, and can use the non-encrypted transceiver mode in the time interval TP4 to use a lower energy The characteristic information CH2_1, CH2_2, CH2_3, and CH2_4 are transmitted and received with the client. The time length of the time interval Tdis can also be set by the designer according to the actual state, and there is no certain limitation.

In addition, in other embodiments, the host 310 of the Bluetooth transceiver 300 may arrange the feature information of the Bluetooth service, so that the feature information that requires encrypted information is arranged in the same first queue, and the feature information that does not require encrypted information is arranged in the same first queue. The information is arranged in another identical second queue. In addition, the host 310 may first perform an information sending and receiving operation with respect to the feature information in the first queue, and after a time interval, perform an information sending and receiving operation with respect to the feature information in the second queue.

Specifically, the host 310 can arrange the feature information that needs to be encrypted information, such as the feature information CH1_2, CH3_0, and CH3_1, in the first queue, and make the feature information that does not need encrypted information, such as CH1_0, CH2_0, and CH2_1, in the first queue. The second queue, and the host 310 first performs an information sending and receiving operation for the feature information in the first queue, and after a period of time, performs an information sending and receiving operation for the feature information in the second queue. Similarly, after the sending and receiving operations of the first queue are completed, after a preset time after the sending and receiving connection of the bluetooth sending and receiving device 300 is cut off, the sending and receiving connection between the bluetooth sending and receiving device 300 and the client can be re-established, and the sending and receiving mode can be performed in an unencrypted sending and receiving mode. The transmission and reception operations of the second queue are performed with lower energy.

Through the above-mentioned queuing action, the number of reconnections between the Bluetooth transceiver device 300 and the client can be effectively reduced, and the efficiency of information transmission can be effectively improved.

To sum up, the Bluetooth transceiver device and the method for transmitting and receiving information of the present invention use the accumulated number of times that the characteristic information to be transmitted and received continues to be information that does not require encryption or when the accumulated time is greater than a critical value, the transmission and reception connection is cut off, and the encrypted transmission and reception is turned off when the transmission and reception connection is cut off. mode, and re-establish the sending and receiving connection, and perform the sending and receiving of the feature information with the client in the unencrypted sending and receiving mode, thereby dynamically adjusting the energy in the encrypted sending and receiving mode and the unencrypted sending and receiving mode, thereby reducing the energy of Bluetooth sending and receiving consume.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (11)

1. A method for sending and receiving information of a bluetooth transceiver, wherein the bluetooth transceiver is mounted with a plurality of bluetooth services, and each of the bluetooth services has a plurality of characteristic information, including: establishing a sending and receiving connection with the client and sending and receiving the plurality of characteristic information; When the characteristic information to be sent and received is the information to be encrypted, the encrypted sending and receiving mode is activated; When the encrypted sending and receiving mode is activated, the sending and receiving connection is cut off when the accumulated number of times or the accumulated time of the received and sent feature information continues to be no encrypted information is greater than the corresponding threshold value; and After the transmission and reception connection is cut off, the encrypted transmission and reception mode is closed, the transmission and reception connection is re-established, and the transmission and reception of the plurality of characteristic information with the client is performed in a non-encrypted transmission and reception mode. 2 . The method for transmitting and receiving information of a Bluetooth transceiver according to claim 1 , wherein the transmitting and receiving energy for transmitting and receiving each of the characteristic information in the encrypted transmitting and receiving mode is greater than that in the non-encrypted transmitting and receiving mode. 3 . Transmit and receive energy of characteristic information. 3. The method for sending and receiving information of a Bluetooth transceiver according to claim 1, wherein when the encrypted sending and receiving mode is activated, the feature information to be sent and received continues to be the accumulated number of times or the number of times of the unencrypted information. The step of cutting off the transceiver connection when the accumulated time is greater than the corresponding threshold value includes: When the encrypted sending and receiving mode is activated, detecting that the feature information to be sent and received is the information that needs to be encrypted or the information that does not need to be encrypted; When the characteristic information detected and received is the information that does not need to be encrypted, the cumulative number of times is increased by 1; and When the characteristic information detected and received is the information to be encrypted, the accumulated number of times is set to 0. 4. The method for sending and receiving information of a Bluetooth transceiver according to claim 1, wherein when the encrypted sending and receiving mode is activated, the feature information to be sent and received continues to be the cumulative number of times or The step of cutting off the transceiver connection when the accumulated time is greater than the corresponding threshold value includes: When the encrypted sending and receiving mode is activated, it is detected that the characteristic information to be sent and received is the information that needs to be encrypted or the information that does not need to be encrypted. When the characteristic information to be sent and received is the information that does not need to be encrypted, a timing action is started. to obtain said accumulated time; and The accumulated time of the timing action is reset when the characteristic information sent and received is detected as the information to be encrypted. 5 . The method for transmitting and receiving information of a Bluetooth transceiver according to claim 1 , wherein the plurality of Bluetooth services are mounted in a general attribute configuration server of the Bluetooth transceiver. 6 . 6. The method for sending and receiving information of a Bluetooth transceiver according to claim 1, further comprising: Arrange the plurality of characteristic information in the plurality of Bluetooth services, so that the plurality of characteristic information of the information that needs to be encrypted are arranged in the first queue, and the plurality of characteristic information of the information that does not need to be encrypted are arranged. a plurality of characteristic information arranged in a second queue; and The information sending and receiving operation is performed for the plurality of characteristic information in the first queue, and after a time interval, the information sending and receiving operation is performed for the plurality of characteristic information in the second queue. 7. A Bluetooth transceiver, characterized in that, comprising: The host includes a general attribute configuration server, in which multiple Bluetooth services are mounted, each of the Bluetooth services includes a plurality of feature information, the host establishes a transceiver connection with the client and sends and receives the plurality of feature information ; a controller coupled to the host; and a bluetooth entity layer, coupled to the host, Wherein, the host starts the encrypted sending and receiving mode when the feature information to be sent and received is the information that needs to be encrypted, and when the encrypted sending and receiving mode is started, the feature information to be sent and received continues to be the cumulative number of times that the encrypted information does not need to be encrypted or When the accumulated time is greater than the corresponding threshold value, the transceiver connection is cut off, the host closes the encrypted transceiver mode after the transceiver connection is cut off, and re-establishes the transceiver connection, and conducts communication with all transceivers in the non-encrypted transceiver mode. Sending and receiving operations of the plurality of feature information between the clients. 8 . The Bluetooth transceiver according to claim 7 , wherein the transmission and reception energy of each of the characteristic information in the encrypted transmission and reception mode is greater than the transmission and reception of the characteristic information in the non-encrypted transmission and reception mode. 9 . energy. 9 . The Bluetooth transceiver according to claim 7 , wherein when the encrypted transceiver mode is activated, the host detects that the received and received feature information is the encrypted information or the unencrypted information. 10 . , and increase the accumulative count by 1 when the characteristic information detected and received is the information that does not need to be encrypted, and set the accumulative count to 0 when the characteristic information detected and received is the information that needs to be encrypted. 10 . The Bluetooth transceiver according to claim 7 , wherein, when the encrypted transceiver mode is activated, the host detects that the feature information to be sent and received is the encrypted information or the unencrypted information. 11 . , and when the feature information detected and received is the information that does not need to be encrypted, a timing action is started to obtain the accumulated time, and when the feature information detected and received is the information that needs to be encrypted, the timing action is reset. the accumulated time. 11. The Bluetooth transceiver according to claim 7, wherein the host further arranges the plurality of characteristic information in the plurality of Bluetooth services, so that the plurality of pieces of the information to be encrypted are the plurality of pieces of the information to be encrypted. The pieces of feature information are arranged in the first queue, and the pieces of feature information that are the information that do not need to be encrypted are arranged in the second queue, and the host first responds to the pieces of feature information in the first queue. The information performs an information transmission and reception operation, and after a time interval, an information transmission and reception operation is performed for the plurality of characteristic information in the second queue.