TW527792B - Abnormal communication alert method of bluetooth device - Google Patents

Abstract

An abnormal communication alert method of bluetooth apparatus primarily make the CPU of any one of two connected bluetooth devices periodically check a link quality value using a host controller interface command. When the quality value is lower than the preset value, i.e., an abnormal communication state, the CPU will issue an alert message to remind the user of the bluetooth device for performing a timely response, such as making the distance of two bluetooth devices closer to reduce the possibility of communication failure.

Description

527792 V. Description of the invention α) [Technical Field of the Invention] The present invention relates to a warning method for abnormal connection of a Bluetooth device, in particular to a method for periodically checking a connection quality value by a central processor in a Bluetooth device with an HC I instruction. Can know how to contact abnormal. [Background of the Invention] Bluetooth technology, which started in early 1988 and is currently being promoted by the Bluetooth Special Interest Group, is a low-power radio technology. Its future development can replace the cables used to connect many portable devices such as personal computers, printers, palmtop computers, and mobile phones, in order to refresh the operating space of these devices and reduce the complicated connection process. However, in general, the Bluetooth device has no warning to remind the user when the contact is abnormal, and the user will not notice the abnormal contact until the contact is interrupted. At this time, the user must spend a lot of time and energy to re-establish the relationship between the two. If this happens frequently, these will be a waste of multiples. And if it is known early that a contact anomaly will occur, the user can take measures as soon as possible to avoid a contact anomaly. Yu [Summary of the Invention] Therefore, the main purpose of the present invention is to provide a common warning method of 'institute-Bluetooth device and another blue dagger = :: after the system, the central processor of each Bluetooth device is based on the Bluetooth standard HCI (H〇st Controller Interface) Command periodically check the connection (Unk)

Page 4 527792 V. Description of the invention (2) Prime value. A second object of the present invention is to provide a warning method for abnormal connection of a Bluetooth device. When the quality value detected is lower than a preset value, the central processing unit of the Bluetooth device sends a warning signal (such as vibration, Bell or screen) to alert users of Bluetooth devices. Yet another object of the present invention is to provide a method for alerting an abnormal connection of a Bluetooth device, with a warning signal to remind the user that the user can handle it in a timely manner (such as reducing the distance between the two devices) to reduce the chance of the connection being interrupted. Another object of the present invention is to provide a warning method for abnormal connection of a Bluetooth device. When the quality value recovers above a preset value, the central processor of the device stops issuing the warning. These and other objects, features, and advantages of the present invention will become clearer to those skilled in the art through the following description in conjunction with the drawings.

I j [Detailed description of the invention] First, please refer to FIG. Figure 1 is a message flow chart for checking the link quality value after two Bluetooth devices have established a connection. As can be seen from the figure, when two or more Bluetooth devices are to establish a relationship, one of the Bluetooth devices will issue a query command (step 11) from the central processing unit through the Bluetooth module to the Bluetooth module of the other Bluetooth device. In the group, the central processing unit of the other Bluetooth device will perform an inquiry scan (step 12). When the sending Bluetooth device receives an answer from another Bluetooth device, the Bluetooth module will send Upon receipt of the response signal to the central processing unit (step 13), the central processing unit is the next instruction to establish a connection to the Bluetooth module (step 14), and the Bluetooth module receives the instruction

Page 5 527792 V. Description of the invention (3) After the I order, notify the central processing unit with the established contact (step 15). After the two Bluetooth devices are connected, the central processing unit of either Bluetooth device periodically sends an HCI (Host Controller Interface) instruction to the Bluetooth module to check the Link quality value (step 16). The Bluetooth module After receiving the instruction, it reports the central processing unit link quality value (step 17). Repeat steps 16 and 17 periodically to get the quality value at any time. The above HC I refers to the interface used to transfer data or instructions between the Bluetooth device controller and the Bluetooth chip module, and the HC I instruction is the instruction used by the Bluetooth device controller to control the Bluetooth chip module, and These are well known to those skilled in the art, so I won't go into details here. Please refer to Figure 2 again, which is a software control flow chart. As shown in the figure, after the Bluetooth device is turned on (step 20), wait to establish a connection with another Bluetooth device (step 21), and check whether a connection is established with another Bluetooth device (step 2 2). If yes, go back to step 21 and continue to confirm the establishment of the contact; if it is confirmed that the connection is established with another Bluetooth device, set the warning flag to 0 (this condition is that the contact is established without any abnormality) (step 23 ), At this time, you can start the check connection quality timer (step 2 4) and enter the wait event state (step 25). After the above waiting event (steps 2 to 5), the following three situations can occur: The first is to receive the link quality value (steps 2 to 6), at which time the CPU will determine whether it is lower than the preset value (steps 2 to 9) ). If the quality value is not lower than the preset value (meaning that no abnormality has occurred or the abnormality has been eliminated), then confirm whether the warning flag is 1 (that is, whether the warning signal is still being issued) (step 291). If it is not, it means that the device is not in the alert 527792 15th Five-Year Invention Description (4) — ^, then directly enter the waiting event (step 2 94); if the alert flag is industrial (that is, an abnormality has occurred previously and has been ruled out) ), The warning flag will be 0 (step [step 292), stop the warning (step 2 93), and directly enter the waiting state for 0y pieces (step 294). In the above step 29, if the consecutive surname is determined. The number = at the preset value, the contact abnormality will occur, so the alerter will wait to do something: η and half set the alert flag to 1 (* ⑺6) * enter ° and other pending events (step 2 9 7) . (Eight specials), == to ": Quality timer time 5 " Step 2, Mouth; ^ person f_ set the tense step 271), and then send out the inspection flail (step 272) and enter the waiting f to end these :: It can achieve the effect of periodically checking the value of the connection quality. Chuan). Timing: ί K: When the IT device is to be disconnected (step 28), it will be, step 281) and wait to enter another Bluetooth step and contact. (Step 282). The other device is shown. See Figure 3. Figure 3 shows the connection between the two Bluetooth devices to establish the memory 32 and the medium 1. It can be seen that the general Bluetooth device 30 contains blue Bud-mode 3: 311 (The RF module includes a Bluetooth module and a radio frequency module: an antenna, a U-band baseband unit 312 (Baseband uni t), a b-33, and a Bluetooth module == device 31 to establish a connection season ③ Establish a contact relationship through the central office, this; ^ line 35 between the "to send and receive pointers" = device

Hi ;: The present invention adds such as bell chirp and vibration. Λ is not much here. As mentioned above, you can activate the alarm 警 342 and other alarms for abnormal connection of dental devices. ^ And reach the blue 527792 V. Description of the invention (5) The logical concepts and the matching circuits used in the above methods are easily understood and implemented by those skilled in the art, and are not the focus of the invention, so I won't go into details here. i The method disclosed in the present invention can periodically check the connection quality value, and can send a warning signal to remind the user when the Bluetooth device is abnormally connected, so as to reduce the probability of interruption of the connection between the Bluetooth devices. Check the value of the connection quality, and found no invention with the same purpose. Therefore, the present invention does have industrial applicability, novelty, and advancement, so I filed an application for an invention patent. However, the above is only one preferred embodiment of the present invention, and is not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes and modifications in the shape, structure, characteristics and spirit described in the scope of patent application of the present invention shall be included in the scope of patent application of the present invention.

Page 527792 Simple illustration of the single simple diagram No. of product No. of the first place of the stream J flow value of the number of the number of figures 2 Quality I said that the message is clear L, after the end of the inspection, the system is connected ^ one by one The two pictures of the bud bud blue display & $ < > Step by step from the 5 different lines of the buds of the blue buds, according to the figure shown in the figure 3, and it is connected to show H; Η 其-方 i # 路 殳 tHM ^ 「Two f ® / 1 The control department shows that it is the 3P of Buddhism Blue 1 of the police structure, and the proof of this is according to the display system ► i [Picture No.] 30 Bluetooth Device 3 1 Bluetooth module 3 1 1 RF unit 3 1 2 Baseband unit 3 2 Memory 3 3 Central processor 34 Alarm 341 Bell 3 4 2 Vibration motor 3 5 Antenna

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Claims (1)

527792 6. Scope of patent application 1. A method for alerting the abnormal connection of a Bluetooth device, in two Bluetooth devices that have established a connection, the central processor of one of the two devices checks the connection quality value with the HC I instruction To confirm the connection status of the two devices. 2. The warning method as described in item 1 of the scope of patent application, wherein the inspection is performed periodically. 3. The warning method described in item 1 or 2 of the scope of patent application, wherein when the contact status is abnormal, the central processing unit of the device will issue a warning message. 4. The warning method as described in item 3 of the scope of patent application, wherein the abnormality means that the quality value is lower than a preset value. 5. The warning method as described in item 3 of the scope of patent application, wherein the warning information includes vibration, age or screen display. 6. According to the warning method described in item 3 of the scope of patent application, after the warning message is issued, if the exception is cancelled, the central processing unit of the device will stop issuing the warning message. 7. The warning method as described in item 6 of the scope of patent application, wherein the abnormal resolution means that the quality value recovers to a value higher than a preset value. 8. — A Bluetooth device, which mainly includes a Bluetooth module, a memory and a central processing unit, wherein the Bluetooth module is composed of a radio frequency unit and a baseband unit, and the radio frequency unit is connected with a day The cable connection is characterized in that the central processing unit is connected to an alarm device and instructs the alarm device to issue a warning to remind the user of the Bluetooth device. 9. The device according to item 8 of the scope of patent application, wherein Alarm kit Page 10 527792 VI. Patent application scope Including vibration motor, bell or screen Page 11 III