CN112954523B

CN112954523B - TWS earphone checking method

Info

Publication number: CN112954523B
Application number: CN202110125079.0A
Authority: CN
Inventors: 董永文; 李鹏; 余灼湛; 刘世桅
Original assignee: Cosonic Intelligent Technologies Co Ltd
Current assignee: Cosonic Intelligent Technologies Co Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2023-06-02
Anticipated expiration: 2041-01-29
Also published as: CN112954523A

Abstract

The utility model provides a calibration method of TWS headphones, comprising the following steps: establishing a communication instruction set; (1) acquiring a data pointer of an original instruction; (2) The data pointer of the original instruction is subjected to declaration initialization variable; (3) calculating a CRC value; (4) Sequentially exchanging the four pointers at the high position and the four pointers at the low position in the calculated CRC pointers; (5) exclusive or operation; (6) Shifting the high-order four pointers of the pointer operated in the step (5) to the right and performing exclusive OR operation; (7) Shifting the four pointers at the lower position of the pointer operated in the step (5) to the left and performing exclusive OR operation to obtain a new instruction; (8) waiting for input; comparing the original instruction with the new instruction, if the original instruction is consistent with the new instruction, determining the original instruction as a correct instruction, otherwise, determining the new instruction as the correct instruction; and controlling the TWS earphone to run the correct instruction. The utility model is used for avoiding the situation that the communication instruction is suddenly changed and ensuring the quality of the TWS earphone charging box.

Description

TWS earphone checking method

Technical Field

The utility model relates to communication of a TWS earphone charging box, in particular to a checking method and a checking structure of the TWS earphone.

Background

Referring to fig. 1-3, the conventional TWS earphone charging box uses a charging circuit with a voltage of 5V to charge the TWS earphone, so that in the process of charging the TWS earphone by the TWS earphone charging box, the TWS earphone charging box communicates with the TWS earphone, a logic level "1" contained in an instruction sent by the TWS earphone charging box needs to perform a boosting operation, and a certain time delay exists in a turning process of the logic level from 1 to 0, so that a spike pulse phenomenon occurs in a switching boosting MOS tube (as shown in fig. 2) in the charging circuit. The phenomenon of spike pulse easily causes the damage of the switch boosting MOS tube, and then the whole charging circuit is disturbed. Therefore, if the controller in the TWS earphone charging box detects that the TWS earphone receives the communication instruction sent by the TWS earphone charging box in the process that the TWS earphone charging box charges the TWS earphone, the charging circuit in the TWS earphone charging box is disconnected instantaneously, and therefore damage to the switching boosting MOS tube is avoided. However, the charging circuit in the TWS earphone charging box is instantaneously disconnected, so that a communication instruction between the TWS earphone and the TWS earphone charging box is suddenly changed, and an interaction error between the TWS earphone and the TWS earphone charging box is caused.

Disclosure of Invention

The utility model aims to provide a calibration method and a calibration structure of TWS earphone, which are used for avoiding the condition that a communication instruction is suddenly changed and ensuring the quality of a TWS earphone charging box.

Therefore, the utility model provides a checking method of TWS earphone, comprising the following steps:

step S1, a communication instruction set is established and stored in a TWS earphone charging box and a TWS earphone controller respectively;

step S2, the TWS earphone controller performs the following operation (1) to collect the instruction sent by the TWS earphone charging box and store the instruction as an original instruction; (2) determining the position of the original instruction and reading the original instruction; (3) calculating a CRC value; (4) Dividing the calculated CRC value into a high-order code part and a low-order code part from the middle part, and sequentially exchanging codes of the high-order code part and the low-order code part; (5) Taking the exclusive OR operation of the code of the original instruction and the calculated CRC value; (6) Taking the code obtained by the exclusive or as a demarcation point from the middle part of the code obtained by the exclusive or, taking the left side of the code obtained by the exclusive or as a high-order code part of the code obtained by the exclusive or, taking the right side of the code obtained by the exclusive or as a low-order code part of the code obtained by the exclusive or, and shifting the high-order code part of the code obtained by the exclusive or to the right and performing exclusive or operation with the code of the original instruction; (7) The low-order code part of the code obtained by the exclusive-or is moved leftwards and is exclusive-ored with the code of the original instruction to obtain a new instruction;

step S3, the TWS earphone controller compares the original instruction with the new instruction, if the original instruction is consistent with the new instruction, the original instruction is determined to be a correct instruction, otherwise, the new instruction is determined to be a correct instruction;

and S4, the TWS earphone controller runs a correct instruction.

Further, the step S2 specifically includes: and collecting an instruction A received by the TWS earphone charging box, and putting the instruction A into a checking program to run to obtain a running instruction B.

Further, the checking program is a CRC program, and the CRC program is specifically as follows:

(1) Acquiring a data pointer of an instruction A; (2) declaring the data pointer to initialize the variable; (3) calculating a CRC value; (4) Sequentially exchanging the four pointers at the high position and the four pointers at the low position in the calculated CRC pointers; (5) Taking the exclusive OR operation of the data pointer of the instruction A and the calculated CRC pointer to obtain an instruction a1; (6) The four pointers at the upper position of the pointer of the instruction a1 move rightwards and then are exclusive-or operated with the data pointer of the instruction A to obtain an instruction a2; (7) Moving the four pointers at the lower position of the pointer of the instruction a2 leftwards, and then performing exclusive OR operation with the data pointer of the instruction A to obtain an instruction B; (8) returning to wait for a new instruction A to be input.

Further, the step S3 specifically includes: comparing the instruction A with the instruction B, if the instruction A is consistent with the instruction B, determining that the instruction A is a correct instruction, otherwise, determining that the instruction B is a correct instruction.

Further, the step S2 specifically includes: and transmitting the original instruction through the IO analog serial port.

Further, the IO analog serial port transmits the instruction set in the step S1 to the controller of the TWS earphone charging box and the controller of the TWS earphone, so that the two are in communication.

The beneficial effects are that:

according to the checking method of the TWS earphone, a new instruction is obtained according to the checking program operation, the new instruction after operation is compared with the instruction received by the TWS earphone, if the new instruction after operation is equal to the instruction received by the TWS earphone, the instruction received by the TWS earphone is determined to be a correct instruction, otherwise, the new instruction after operation is determined to be the correct instruction, the correct instruction is operated, the condition that the communication instruction is suddenly changed is avoided, and the quality of the TWS earphone charging box is guaranteed.

Drawings

FIG. 1 is a prior art charging circuit;

FIG. 2 is a circuit block diagram of a conventional boost switch mos transistor;

fig. 3 is a schematic diagram of a pin structure of a conventional TWS earphone charging box;

FIG. 4 is a circuit block diagram of a boost switch mos transistor of the present utility model;

FIG. 5 is a schematic diagram of an electronic device according to the present utility model;

fig. 6 is a schematic structural view of a computer readable storage medium of the present utility model.

Reference numerals illustrate: a 21-processor; 22-memory; 23-storage space; 24-program code; 31-program code.

Detailed Description

The utility model will be further described with reference to the following examples.

Referring to fig. 4, the control circuit of the TWS earphone charging box of the present embodiment includes the original circuit structure in fig. 1-3, and further includes the following circuits: the P area of the diode D2 is connected with a No. 2 foot DEBUG in the controller U1, the N area of the diode is connected with a resistor R8 in series and then connected to a high-level power supply, two ends of the diode D2 are connected with a resistor R7 in parallel, one end of a capacitor C4 is connected with a No. 7 foot CON1 in the controller U1, the other end of the capacitor C4 is connected with a resistor R17 in series and then connected to a connecting line of the resistor R8 and the high-level power supply, the P area of the diode D3 is connected with the D pole of a Pmos tube Q6, the N area of the diode D3 is connected with the S pole of the Pmos tube Q6, the G pole of the Pmos tube Q6 is grounded, the D pole and the S pole of the Pmos tube Q6 are respectively connected in series to a connecting line of the capacitor C4 and the resistor R17, and a grounded resistor R31 is also connected to the connecting line of the diode D3 and the capacitor C4.

According to the above circuit structure, when the TWS earphone charging box does not send an instruction to make the output level logic "1", the pin No. 2 DEBUG of the controller U1 in the TWS earphone charging box outputs a high level. At this time, pin 7 CON1 of the TWS earphone charging box controller U1 outputs a cut-off voltage to disable the Pmos tube Q6, and at the same time, switches the power supply to a low level, so that current cannot flow to the power supply. When the TWS earphone charging box sends an instruction to enable the output level logic to be 0, the DEBUG outputs a low level, the CON1 outputs a conducting voltage to enable the Pmos tube Q6 to work, the 5V voltage of the power supply is pulled down to 3.3V to ensure normal communication between the TWS earphone charging box and the TWS earphone, and then the TWS earphone is enabled to be charged while being inserted into the TWS earphone charging box based on the circuit structure, the TWS earphone charging box is enabled to be communicated with the TWS earphone, and spike pulse impact cannot be generated.

Through using 3.3V voltage to communicate, guarantee TWS earphone charging box can directly communicate with TWS earphone through 3.3V voltage, pause TWS earphone charging box for TWS earphone's charging for TWS charging box does not need to carry out operations such as boost, discharge, etc. in order to guarantee the waveform stability of communication signal.

The calibration method of the TWS earphone of the embodiment specifically uses the conventional IO to simulate eight serial ports for communication and ensures that the baud rate is 300/9600, and the calibration method of the TWS earphone comprises the following steps of:

step S1: establishing a checking method instruction set of the TWS earphone, wherein the checking method instruction set is used for enabling each instruction set to correspond to different TWS earphone charging box control instructions;

the specific instruction set is shown in the table below,

numbering device	Command ID	Description of the functionality
			1	0XF0	Uncap command
2	0XF1	Cover closing command
			3	0XF2	Entering DUT mode (testing RF)
4	0XF3	Boot command
			5	0XF4	Shutdown command
6	0XF5	Low-current communication of charging box (below 3.4V)
			7	0XF6	Earphone cleaning Bluetooth pairing record
8	0XF7	Earphone clearing Bluetooth and TWS pairing record
			9	0XF8	Entering TWS pairing mode
10	0XF9	Entering Bluetooth pairing mode
			11	0XFA	Entering single-ear pairing mode
12	0XFB	Shielding in-ear detection limits
			13	0XFC	Reporting electric quantity by charging box
14	0XFD	Earphone enters OTA mode

Step S2: storing the instruction into a controller through an IO analog serial port, and driving a TWS earphone charging box to interact with the TWS earphone;

the method comprises the following steps: and (3) the external equipment transmits the instruction set in the step (S1) to a controller of the TWS earphone charging box and a controller of the TWS earphone respectively through the IO analog serial port so as to communicate with the TWS earphone.

Step S3: the TWS earphone receives an instruction A sent by the TWS earphone charging box, the instruction A is put into a checking program to calculate an instruction B, and whether the instruction A and the instruction B are consistent or not is compared;

the method comprises the following steps: the method comprises the steps of putting an instruction A into a checking program to calculate a CRC data pointer, carrying out one-to-one correspondence exchange between high digits and low digits on the data pointer in the CRC data pointer to carry out exclusive-OR operation on the data pointer of the instruction A to obtain an instruction a1, carrying out exclusive-OR operation on the high digits of the instruction a1 pointer after moving rightwards on the data pointer of the instruction A to obtain an instruction a2, carrying out exclusive-OR operation on the low digits of the instruction a2 pointer after moving leftwards on the data pointer of the instruction A to obtain an instruction B, comparing the data pointer of the instruction A with the data pointer of the instruction B, if the data pointers are consistent, the instruction A does not have mutation, directly taking the instruction A as a correct instruction, and if the data pointer of the instruction A is inconsistent with the instruction B, carrying out mutation on the instruction A, and taking the instruction B as a correct instruction;

the checking procedure is a CRC procedure, which is specifically as follows:

(1) Acquiring a data pointer of an instruction A;

(2) The data pointer is declared to initialize variables;

(3) Calculating a CRC value;

(4) Sequentially exchanging the four pointers at the high position and the four pointers at the low position in the calculated CRC pointers;

(5) Taking the exclusive OR operation of the data pointer of the instruction A and the calculated CRC pointer to obtain an instruction a1;

(6) The four pointers at the upper position of the pointer of the instruction a1 move rightwards and then are exclusive-or operated with the data pointer of the instruction A to obtain an instruction a2;

(7) Moving the four pointers at the lower position of the pointer of the instruction a2 leftwards, and then performing exclusive OR operation with the data pointer of the instruction A to obtain an instruction B;

in the CRC program in this embodiment, the CRC data pointer is calculated by placing the instruction a into the inspection program, the data pointer in the CRC data pointer is exchanged with the pointer of the instruction a in a one-to-one correspondence manner to obtain the instruction a1, the pointer of the high bit of the instruction a1 is moved to the right and then is subjected to the exclusive-or operation with the data pointer of the instruction a to obtain the instruction a2, the pointer of the low bit of the instruction a2 is moved to the left and then is subjected to the exclusive-or operation with the data pointer of the instruction a to obtain the instruction B.

Step S4: and entering a waiting state, and waiting for the TWS earphone charging box to input a new instruction so as to repeatedly execute the steps to avoid abrupt change of the communication instruction.

Such a manner of adjustment produces the following beneficial effects:

and the instruction A sent by the TWS earphone charging box to the TWS earphone is put into the CRC program to operate, so that the problem that the TWS earphone operates an error instruction due to mutation of the instruction A is avoided.

It should be noted that:

the method according to the present embodiment can be implemented by being transferred to a program step and a device that can be stored in a computer storage medium, and being called and executed by a controller.

The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose devices may also be used with the teachings herein. The required structure for the construction of such devices is apparent from the description above. In addition, the present utility model is not directed to any particular programming language. It will be appreciated that the teachings of the present utility model described herein may be implemented in a variety of programming languages, and the above description of specific languages is provided for disclosure of enablement and best mode of the present utility model.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the utility model may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the utility model, various features of the utility model are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be construed as reflecting the intention that: i.e., the claimed utility model requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this utility model.

Those skilled in the art will appreciate that the modules in the apparatus of the embodiments may be adaptively changed and disposed in one or more apparatuses different from the embodiments. The modules or units or components of the embodiments may be combined into one module or unit or component and, furthermore, they may be divided into a plurality of sub-modules or sub-units or sub-components. Any combination of all features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or units of any method or apparatus so disclosed, may be used in combination, except insofar as at least some of such features and/or processes or units are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the utility model and form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination.

Various component embodiments of the utility model may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that some or all of the functions of some or all of the components in an apparatus for detecting the wearing state of an electronic device according to an embodiment of the present utility model may be implemented in practice using a microprocessor or Digital Signal Processor (DSP). The present utility model can also be implemented as an apparatus or device program (e.g., a computer program and a computer program product) for performing a portion or all of the methods described herein. Such a program embodying the present utility model may be stored on a computer readable medium, or may have the form of one or more signals. Such signals may be downloaded from an internet website, provided on a carrier signal, or provided in any other form.

For example, fig. 5 shows a schematic structural diagram of an electronic device according to an embodiment of the present utility model. The electronic device conventionally comprises a processor 21 and a memory 22 arranged to store computer executable instructions (program code). The memory 22 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read only memory), an EPROM, a hard disk, or a ROM. The memory 22 has a memory space 23 storing program code 24 for performing any of the method steps in the embodiments. For example, the memory space 23 for the program code may include individual program code 24 for implementing the various steps in the above method, respectively. The program code can be read from or written to one or more computer program products. These computer program products comprise a program code carrier such as a hard disk, a Compact Disc (CD), a memory card or a floppy disk. Such a computer program product is typically a computer readable storage medium as described for example in fig. 6. The computer readable storage medium may have memory segments, memory spaces, etc. arranged similarly to the memory 22 in the electronic device of fig. 5. The program code may be compressed, for example, in a suitable form. Typically, the memory unit stores program code 31 for performing the method steps according to the utility model, i.e. program code readable by a processor such as 21, which when run by an electronic device causes the electronic device to perform the steps in the method described above.

It should be noted that the above-mentioned embodiments illustrate rather than limit the utility model, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The utility model may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names.

Claims

1. The TWS earphone checking method is characterized by comprising the following steps:

step S1, a communication instruction set is established and is respectively stored in a controller of a TWS earphone charging box and a controller of the TWS earphone;

step S2, the following operations are performed by the controller of the TWS earphone: (1) Collecting an instruction sent by a controller of the TWS earphone charging box and storing the instruction as an original instruction; (2) determining the position of the original instruction and reading the original instruction; (3) calculating a CRC value; (4) Dividing the calculated CRC value into a high-order code part and a low-order code part from the middle part, and sequentially exchanging codes of the high-order code part and the low-order code part; (5) Taking the exclusive OR operation of the code of the original instruction and the CRC value obtained after interchange; (6) Taking the middle of the codes obtained by the exclusive OR as a demarcation point, taking the left side of the codes obtained by the exclusive OR as a high-order code part, taking the right side of the codes obtained by the exclusive OR as a low-order code part, and moving the high-order code part of the codes obtained by the exclusive OR to the right and performing exclusive OR operation with the codes of the original instruction; (7) Shifting the high-order code part of the code obtained by exclusive-or to the right and performing exclusive-or operation with the code of the original instruction, and shifting the low-order code part of the code obtained by exclusive-or operation with the code of the original instruction to the left to obtain a new instruction;

step S3, the controller of the TWS earphone compares the original instruction with the new instruction, if the original instruction is consistent with the new instruction, the original instruction is determined to be the correct instruction, otherwise, the new instruction is determined to be the correct instruction;

and S4, the controller of the TWS earphone runs a correct instruction.

2. The method for verifying the TWS earphone according to claim 1, wherein the step S2 specifically comprises: and (3) collecting an instruction A received by a controller of the TWS earphone charging box, putting the instruction A into a verification program for operation, and obtaining an instruction B after operation.

3. The method for checking a TWS headset according to claim 2, wherein the checking procedure is a CRC procedure, and the CRC procedure is specifically as follows:

(1) Acquiring a data pointer of an instruction A; (2) declaring the data pointer to initialize the variable; (3) calculating a CRC value; (4) Sequentially exchanging the four pointers at the high position and the four pointers at the low position in the calculated CRC pointers; (5) Taking the exclusive OR operation of the data pointer of the instruction A and the CRC pointer obtained after the exchange to obtain an instruction a1; (6) The four pointers at the upper position of the pointer of the instruction a1 move rightwards and then are exclusive-or operated with the data pointer of the instruction A to obtain an instruction a2; (7) The lower four pointers of the pointer of the instruction a2 are moved leftwards and then exclusive-or-operated with the data pointer of the instruction a to obtain the instruction B.

4. The method for verifying the TWS earphone according to claim 2, wherein the step S3 specifically includes: comparing the instruction A with the instruction B, if the instruction A is consistent with the instruction B, determining that the instruction A is a correct instruction, otherwise, determining that the instruction B is a correct instruction.

5. The method for verifying the TWS earphone according to claim 1, wherein the step S2 specifically comprises: and transmitting the original instruction through the IO analog serial port.

6. The method for verifying the TWS headset of claim 5, wherein the IO analog serial port transmits the communication instruction set in step S1 to the controller of the TWS headset charging box and the controller of the TWS headset, respectively, so that the two can communicate.