TWI548228B - Bluetooth transceiving appartus and data transceiving method thereof - Google Patents

Description

Bluetooth transmission device and information transmission method thereof

The invention relates to a transmitting device and a data transmitting method thereof, and in particular to a Bluetooth transmitting device and a method for transmitting the same.

Among the wireless transmission methods used today, the Bluetooth protocol is a widely used wireless data transmission protocol, and the Bluetooth service has the function of encrypting communication or transmission actions, so that the user terminal is protected in use. Generally, the Bluetooth transceiver device may include a Generic attribute profile server (GATT Server), and the Bluetooth service may be mounted therein. The feature information in the Bluetooth service can be encrypted and protected, that is, when the user wants to use the information to be encrypted, the content of the feature information needs to be accessed through verification or the like.

Please refer to FIG. 1. FIG. 1 is a diagram showing a correspondence relationship between information transmission energy and time of a Bluetooth transmission device in a conventional Bluetooth transmission method. The vertical axis represents the energy of the Bluetooth transmitting device to transmit the feature information, and the horizontal axis represents the time. Time interval TP It is a time interval for performing the security mode switching, and before the time interval TP, the Bluetooth transmitting device performs the transmission of the encrypted feature information CH1, CH2 with lower transmission energy. During the time interval TP, the Bluetooth transmission device detects that the feature information CH3 to be transmitted is the information to be encrypted and activates the encryption mode, and after the time interval TP, the Bluetooth transmission device changes to the high transmission energy. The transmission of the feature information CH3 to be encrypted is performed. It is worth noting that, under the conventional Bluetooth transmission method, after the encryption mode is started from the time interval TP, the Bluetooth transmission device cannot perform the encryption mode even if the feature information CH4, CH5 is not required to be encrypted, but needs to be Data transmission is carried out with higher transmission energy, that is, even if the characteristic information CH4 and CH5 transmitted after the time interval TP are not encrypted, the Bluetooth transmission device still transmits high energy. Information transmission, resulting in unnecessary power consumption.

The invention provides a Bluetooth transmission device and an information transmission method thereof respectively, and can dynamically adjust information transmission, thereby reducing power consumption of the Bluetooth transmission device.

The information transmission method of the Bluetooth transceiver device of the present invention, wherein the Bluetooth transceiver device mounts a plurality of Bluetooth services, and each Bluetooth service has a plurality of feature information, and the steps of the information transmission method include: establishing with the client The connection is transmitted and the feature information is transmitted. The encrypted feature information is that when the information needs to be encrypted, the encrypted transmission mode is started. When the encrypted transmission mode is activated, the transmitted feature information continues to be the cumulative number of times when the information is not required to be encrypted or the accumulated time is greater than the critical value, and the transmission connection is cut off. When the transmission connection is cut off, the encrypted transmission mode is turned off, and the transmission connection is re-established. And transmitting the feature information with the client in a non-encrypted transmission mode.

In an embodiment of the invention, the transmission energy of transmitting the feature information in the encrypted transmission mode is greater than the transmission energy of transmitting the feature information in the non-encrypted transmission mode.

In an embodiment of the present invention, when the encrypted transmission mode is activated, the collected feature information continues to be the step of cutting off the transmission connection when the accumulated number of times without the encrypted information or the accumulated time is greater than a critical value. Including, when the encrypted transmission mode is activated, detecting the transmitted feature information as encrypting information or not encrypting information. When the detected feature information is detected as no need to encrypt information, the cumulative number is increased by one. When the detected feature information is the information to be encrypted, the cumulative number of times is zero.

In an embodiment of the present invention, when the encrypted transmission mode is activated, the transmitted feature information continues to be the cumulative number of times when the information is not required to be encrypted or the accumulated time is greater than the threshold, and the transmission connection is cut off. The step includes: when the encrypted transmission mode is activated, starting a timing action to obtain the accumulated time, and detecting the transmitted feature information as requiring encrypted information or not requiring encryption information. The cumulative time of resetting the timing action when detecting the transmitted feature information as the information to be encrypted.

In an embodiment of the invention, the Bluetooth services are installed in a universal attribute setting server of the Bluetooth transceiver.

In an embodiment of the present invention, the step of the information transmission method of the Bluetooth transceiver further includes: arranging the feature information in the Bluetooth service, and arranging the feature information for the information to be encrypted in the first queue, and For no need to encrypt information The feature information is arranged in the second queue. The information transmission action is performed on the feature information in the first queue, and after the time interval, the information transmission action is performed on the feature information in the second queue.

The Bluetooth transmission device of the present invention comprises a host, a controller and a Bluetooth physical layer. The host includes a general-purpose attribute setting server, and the general-purpose attribute setting server mounts a plurality of Bluetooth services. Each Bluetooth service includes a plurality of feature information, and the host and the client establish a connection connection and transmit the feature information. The Bluetooth physical layer and the controller are coupled to the host, wherein the host initiates the encrypted transmission mode when the transmitted feature information is the information to be encrypted, and the transmitted feature information when the encrypted transmission mode is activated. If the cumulative number of times when the accumulated information is not required to be encrypted or the accumulated time is greater than the critical value, the transmission connection is cut off, and the host closes the encrypted transmission mode after the transmission connection is cut off, and re-establishes the transmission connection, and The encrypted transmission mode performs the transmission of the feature information with the client.

Based on the above, the Bluetooth transmitting apparatus and method of the present invention uses the transmitted feature information to continue to cut off the transmission connection when the accumulated number of accumulated information or the accumulated time is greater than the critical value, and when the transmission connection is cut off, Turning off the encrypted transmission mode, and re-establishing the transmission connection, and performing the transmission and reception of the feature information with the client in the non-encrypted transmission mode, thereby dynamically adjusting the encryption transmission mode and the non-encrypted transmission mode. The energy underneath, thereby reducing the energy consumption of Bluetooth transmission.

The above described features and advantages of the invention will be apparent from the following description.

S210, S220, S230, S240‧‧‧ steps

TP1, TP, TP2, TP3, TP4, Tdis‧‧‧ time interval

300‧‧‧Bluetooth transmission device

310‧‧‧Host

320‧‧‧General property setting server

330‧‧‧Bluetooth physical 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

FIG. 1 is a diagram showing a correspondence relationship between information transmission energy and time of a Bluetooth transmission device in a conventional Bluetooth transmission method.

2 is a flow chart showing the steps of a method for transmitting and receiving information of a Bluetooth transceiver device according to an embodiment of the invention.

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

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

FIG. 4 is a diagram showing a correspondence relationship between information transmission energy and time of a Bluetooth transmission device according to an embodiment of the present invention.

Referring to FIG. 2 and FIG. 3A, FIG. 2 is a flow chart showing the steps of the information transmission method of the Bluetooth transceiver device according to an embodiment of the present invention, and FIG. 3A is a block diagram of the Bluetooth transceiver device 300 according to an embodiment of the invention. . FIG. 3B is a block diagram of a host 310 according to an embodiment of the invention. The information transmission method of FIG. 2 can be applied to at least the Bluetooth transceiver 300 of FIG. 3A. In FIG. 3A, the Bluetooth transceiver device 300 includes a host 310, a Bluetooth physical layer 330, and a controller 340. The host 310 has a general-purpose attribute setting server 320, and the host 310 is coupled to the Bluetooth physical layer 330 and the controller 340. The universal attribute setting server 320 can mount multiple Bluetooth services, and each Bluetooth service can include multiple feature information, and each feature information can be It is the feature information that needs to be encrypted or it can be the feature information that does not need to be encrypted. The controller 340 can adjust the switching of the Bluetooth service mode.

Regarding the details of the transmission operation of the feature information of the embodiment of the present invention, first, in step S210, the host 310 establishes a transmission connection with the client, and starts the transmission of the feature information. The host 310 can sequentially transmit each feature information in each Bluetooth service mounted in the general-purpose attribute setting server 320 according to the set order. In step S220, when the host 310 interprets the transmitted feature information as the information to be encrypted, the security mode is switched, and the security mode is activated, and the encrypted transmission mode is transmitted as Characteristic information of the information to be encrypted. In step S230, in the encrypted transmission mode, when the host 310 detects that the feature information that does not need to be encrypted is transmitted, the host 310 can start calculating the collected feature information and continue to accumulate the information without encryption. Number of times or cumulative time. When the host 310 determines that the collected feature information continues to be greater than the critical value (critical number of times), the accumulated feature information continues to be longer than the other critical value (the accumulated time of the encrypted information is not required) ( At the critical time), the host 310 can disconnect the connection established with the client.

Then, after the Bluetooth transmission device 300 has a predetermined time after the transmission connection is cut off, the Bluetooth transmission device 300 and the client can re-establish the transmission connection, so that the Bluetooth transmission device 300 can The unencrypted transmission mode performs a transmission operation of the feature information with the client (step S240).

Specifically, in the encrypted transmission mode, the host 310 of the present invention re-establishes the connection with the client after disconnecting from the client for a period of time. The Bluetooth transceiver device 300 can perform the transmission without encryption information in the non-encrypted transmission mode, so as to prevent the Bluetooth transceiver device 300 from continuously transmitting in the encrypted transmission mode without encrypting information. Moreover, 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 continuously determine whether to adjust the encrypted transmission mode in a dynamic manner during operation to reduce the Bluetooth. The energy consumption of the collection.

Please refer to FIG. 3B. FIG. 3B is a block diagram of the host 310 of the embodiment of FIG. 3A of the present invention. The universal property server of the present invention provides an application end of the Bluetooth transceiver to mount the Bluetooth service. The user can use the application to mount the corresponding Bluetooth service in the general-purpose property server. In this embodiment, the general-purpose attribute server 320 includes Bluetooth services SV1, SV2, and SV3, and each Bluetooth service can be separately provided to a different device or an application for Bluetooth transmission. In addition, the Bluetooth services SV1, SV2, and SV3 may include a plurality of feature information CH1_0~CH1_M, CH2_0~CH2_N, and CH3_0~CH3_I, respectively. In this embodiment, only the feature information CH1_2 of the feature information CH1_0~CH1_M included in the Bluetooth service SV1 belongs to the information to be encrypted, and the remaining feature information is that no information needs to be encrypted. The feature information CH2_0~CH2_N included in the Bluetooth service SV2 does not require encryption information. In addition, the feature information CH3_0~CH3_I included in the Bluetooth service SV3 is encrypted information. It should be noted that the present invention does not limit the number of Bluetooth services or the number of feature information included therein.

4 is a diagram showing the correspondence between information transmission energy and time of the Bluetooth transmission device of the embodiment of FIG. 3B of the present invention. The vertical axis represents the transmission information of the Bluetooth transceiver The energy, the horizontal axis represents time. Referring to FIG. 3B and FIG. 4 simultaneously, in the time interval TP1, the Bluetooth transceiver 300 transmits the non-encrypted feature information in the non-encrypted transmission mode, for example, the feature information CH1_0 and CH2_0 without encrypting the information. The feature information CH3_0 to be transmitted next is the information to be encrypted, and the time zone TP is required to activate the encryption mode of the Bluetooth transmitting device 300. When the encryption mode is activated, in the time interval TP2, the transmission of the feature information of the information to be encrypted, such as the feature information CH3_0 and CH3_1, may be performed. It should be noted that, in this embodiment, the transmission energy of transmitting each feature information in the encrypted transmission mode is greater than the transmission energy of the transmission of each feature information in the non-encrypted transmission mode. For example, the transmission energy of the transmission characteristic information CH3_1 (in the encrypted transmission mode) is greater than the transmission energy of the transmission characteristic information CH1_0 (in the non-encrypted transmission mode).

In this embodiment, feature information such as feature information CH1_1, CH1_3, and CH1_4 may be performed in the time interval TP3 in the encryption mode without encrypting information. When the Bluetooth transmission device 300 detects that the feature information transmitted in the time interval TP3 in the encryption mode is that no encryption information is needed, for example, the feature information CH1_1, the host 310 can start the counting action to increase the cumulative number by one, and In this state, the Bluetooth transceiver device 300 can increase the cumulative number of times by 1 for each piece of feature information that does not require encrypted information. Incidentally, if the Bluetooth transmission device 300 has the feature information for detecting and transmitting in this time interval, the accumulated number of times is reset to 0.

When the accumulated count count reaches the critical value, the Bluetooth transmission device 300 can cut off the transmission connection with the client in the time interval Tdis. Then, in Bluetooth transmission After a predetermined time after the transmission connection is disconnected, the device 300 can re-establish the transmission connection between the Bluetooth transmission device 300 and the client, and change the transmission mode in the non-encrypted transmission mode in the time interval TP4. The transmission of the feature information CH2_1, CH2_2, CH2_3, and CH2_4 is performed through lower energy. The threshold value in this embodiment may be preset by the system or defined by the designer, and is not limited herein.

In another embodiment, when the feature information that does not need to be encrypted information is detected in the time interval TP3 in the encrypted transmission mode, for example, the feature information CH1_1, the host 310 starts the timing action to obtain the accumulated time. During the timed operation, if the host 310 detects that the transmitted feature information is encrypted information, the accumulated time of the timed action can be reset. Conversely, the Bluetooth transceiver 300 can continue the timing operation. For example, the feature information CH1_1, CH1_3, and CH1_M transmitted in the time interval TP3 are all without encryption information, and the host 310 starts the timing action and generates the accumulated time. If the accumulated time reaches the critical value, the Bluetooth transceiver 300 can disconnect the transmission with the client in the time interval Tdis. Then, after the Bluetooth transceiver device 300 has a predetermined time after the transmission connection is cut off, the Bluetooth transmission device 300 and the client can re-establish the transmission connection, and can be transmitted in the time interval TP4 by non-encryption. The receiving mode performs the transmission of the feature information CH2_1, CH2_2, CH2_3, and CH2_4 with the client through the lower energy. The length of time period Tdis can also be set by the designer according to the state of the timepiece, without any limitation.

In addition, in other embodiments, the host 310 of the Bluetooth transceiver 300 The feature information of the Bluetooth service may be arranged such that the feature information for encrypting the information is arranged in the same first queue, and the feature information for not requiring the encrypted information is arranged in another identical second queue. Moreover, the host 310 may first perform an information transmission action on the feature information in the first queue, and perform an information transmission action on the feature information in the second queue after a time interval.

Specifically, the host 310 may arrange feature information of the information to be encrypted, such as feature information CH1_2, CH3_0, and CH3_1, in the first queue, and arrange feature information such as CH1_0, CH2_0, and CH2_1 that do not need to be encrypted. The second queue, and the host 310 first performs the information transmission action on the feature information in the first queue, and performs the information transmission action on the feature information in the second queue after the time interval. Similarly, after the transmission operation of the first queue is completed, after the Bluetooth transmission device 300 has a predetermined time after the transmission connection is cut off, the Bluetooth transmission device 300 and the client can re-establish the transmission connection. Line, and in the non-encrypted transmission mode, the second queue is transmitted through the lower energy.

Through the above queuing action, the number of times the Bluetooth transceiver device 300 reconnects with the client can be effectively reduced, and the performance of the information transmission is effectively improved.

In summary, the Bluetooth transmitting apparatus and method of the present invention uses the transmitted feature information to continue to cut off the transmission connection when the accumulated number of accumulated information or the accumulated time is greater than the critical value, when the transmission connection is After the disconnection, the encrypted transmission mode is closed, and the transmission connection is re-established, and the feature information transmission and the operation between the client and the client are performed in a non-encrypted transmission mode, thereby dynamically adjusting the encryption transmission mode and the non-encryption transmission. The energy in the mode is reduced, thereby reducing the energy consumption of Bluetooth transmission.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

S210, S220, S230, S240‧‧‧ steps

Claims (11)

A method for transmitting information of a Bluetooth transceiver device, wherein the Bluetooth transceiver device mounts a plurality of Bluetooth services, and each of the Bluetooth services has a plurality of feature information, including: establishing a transmission connection with a client and transmitting Receiving the feature information; when the transmitted feature information is an encrypted information, an encrypted transmission mode is activated; when the encrypted transmission mode is activated, the transmitted feature information continues to be encrypted without encryption. Cutting off the transmission connection when a cumulative number of times or a cumulative time is greater than a threshold; and closing the encrypted transmission mode after the transmission connection is cut, and reestablishing the transmission connection, and The non-encrypted transmission mode performs the transmission and reception of the feature information with the client. The method for transmitting information of the Bluetooth transceiver device according to claim 1, wherein the transmission energy of the feature information transmitted in the encrypted transmission mode is greater than the transmission in the non-encrypted transmission mode. The energy of transmission of feature information. The method for transmitting information of the Bluetooth transceiver according to claim 1, wherein when the encrypted transmission mode is activated, the transmitted feature information continues to be the cumulative number of times the information is not required to be encrypted or The step of cutting off the transmission connection when the accumulated time is greater than the threshold includes: detecting that the transmitted feature information is the encrypted information or the encrypted information when the encrypted transmission mode is activated; When the detected feature information is that the encrypted information is not required to be encrypted, the cumulative number of times is increased by one; and when the transmitted feature information is detected as the encrypted information, the cumulative number of times is zero. The method for transmitting information of the Bluetooth transceiver according to claim 1, wherein when the encrypted transmission mode is activated, the transmitted feature information continues to be the cumulative number of times the information is not required to be encrypted or The step of cutting off the transmission connection when the accumulated time is greater than the threshold includes: when the encrypted transmission mode is activated, starting a timing action to obtain the accumulated time, and detecting the collected feature information as the requirement Encrypting the information or not encrypting the information; and resetting the accumulated time of the timing action when detecting the transmitted feature information as the encrypted information. The information transmission method of the Bluetooth transceiver device according to claim 1, wherein the Bluetooth service is mounted in a general-purpose attribute setting server of the Bluetooth transceiver. The method for transmitting information of the Bluetooth transceiver according to claim 1, wherein the method further comprises: arranging the feature information in the Bluetooth services, and arranging the feature information for the information to be encrypted. And a first queue, and arranging the feature information for the non-encrypted information in a second queue; and performing information transmission on the feature information in the first queue, and After a time interval, the information transmission action is performed on the feature information in the second queue. A Bluetooth transceiver device includes: a host, including a universal attribute setting server, wherein the universal attribute setting server mounts a plurality of Bluetooth services, each of the Bluetooth services includes a plurality of feature information, the host and a client The terminal establishes a transmission connection and transmits the feature information; a controller is coupled to the host; and a Bluetooth physical layer is coupled to the host, wherein the host receives the feature information as one When the information needs to be encrypted, an encrypted transmission mode is activated, and when the encrypted transmission mode is activated, the transmitted feature information continues to be a cumulative number of times when no information needs to be encrypted or when the accumulated time is greater than a critical value. The communication connection is disconnected, and the host closes the encrypted transmission mode after the transmission connection is disconnected, and re-establishes the transmission connection, and performs an unencrypted transmission mode with the client. The transmission of the feature information. The Bluetooth transceiver device of claim 7, wherein the transmission energy of the feature information transmitted in the encrypted transmission mode is greater than the transmission of the feature information in the non-encrypted transmission mode. energy. The Bluetooth transceiver device of claim 7, wherein when the encrypted transmission mode is activated, the host detects the transmitted feature information as the encrypted information or the encrypted information, and The cumulative number of times is increased by 1 when the feature information for detecting the transmission is the information that is not required to be encrypted, and is 0 when the feature information for detecting the transmission is the information to be encrypted. The Bluetooth transceiver device of claim 7, wherein when the encrypted transmission mode is activated, the host initiates a timing action to obtain an accumulated time, and detects the transmitted feature information as the The information needs to be encrypted or not encrypted, and the accumulated time of the timing action is reset when the detected feature information is the encrypted information. The Bluetooth transceiver device of claim 7, wherein the host further arranges the feature information in the Bluetooth services, so that the feature information for the encrypted information is arranged in a first queue. And arranging the feature information for the non-encrypted information in a second queue, and the host first performs information transmission on the feature information in the first queue, and after a time interval, And performing information transmission actions on the feature information in the second queue.