WO2018209852A1

WO2018209852A1 - Pos machine, method for fetching debugging information of wireless communication module of pos machine, and storage medium

Info

Publication number: WO2018209852A1
Application number: PCT/CN2017/102389
Authority: WO
Inventors: 何文亮; 石长松
Original assignee: 万达百汇科技（深圳）有限公司
Priority date: 2017-05-15
Filing date: 2017-09-20
Publication date: 2018-11-22
Also published as: CN107247645B; CN107247645A

Abstract

The present application relates to a POS machine, a method for fetching debugging information of a wireless communication module of the POS machine, and a storage medium. The method comprises: obtaining USB device nodes of the wireless communication module, and enabling a fetching node among the USB device nodes for fetching the debugging information of the wireless communication module; configuring port information of the fetching node; sending a fetching instruction to the wireless communication module to detect USB data flows; caching the detected USB data flows if the USB data flows are detected; and creating a fetching file, and writing the cached USB data flows into the fetching file.

Description

POS machine, POS machine wireless communication module debugging information capture method and storage medium

Cross-reference to related applications

This application is required to be submitted to the China Patent Office on May 15, 2017, the application number is 201710340133.7, and the invention title is “Priority of Chinese Patent Application for POS Machine, POS Machine Wireless Communication Module Debugging Information Grab Method and Device”, all of which are The content is incorporated herein by reference.

Technical field

The present application relates to the field of information technology, and in particular, to a POS machine, a POS machine wireless communication module debugging information capture method and a storage medium.

Background technique

Generally, the POS machine communicates by setting a wireless communication module. The wireless communication module of the POS machine runs on an independent operating system. The debugging information of the wireless communication module cannot be directly read by the operating system of the POS machine. In order to locate the debugging problem of the wireless communication module of the POS machine, the POS machine needs to be disassembled. The debug lead on the wireless communication module is led out, and the debug lead is connected to the PC, and the debugging information of the wireless communication module is captured by the PC. In the process of implementing the present application, the inventor has found that at least the following problems exist in the prior art: frequent teardown, connection, and installation operations in the process of capturing information of the wireless communication module make the debugging information capture operation very inconvenient, and Seriously affect the efficiency of the capture.

Summary of the invention

According to the solution of the embodiment, a POS machine, a POS machine wireless communication module debugging information capture method, and a storage medium are provided.

A POS machine wireless communication module debugging information capture method, comprising:

Obtain the USB device node of the wireless communication module, and open the USB device node for capturing no The capture node of the line communication module debugging information;

Configure the port information of the crawling node.

Send a capture command to the wireless communication module to detect the USB data stream;

Cache the detected USB data stream when a USB data stream is detected; and

Create a crawl file and write the cached USB data stream to the crawl file.

One or more computer readable non-volatile storage media storing computer readable instructions, when executed by one or more processors, cause the one or more processors to perform the steps of:

Obtaining a USB device node of the wireless communication module, and opening a capture node of the USB device node for capturing debug information of the wireless communication module;

Configure the port information of the crawling node.

Cache the detected USB data stream when a USB data stream is detected; and

Create a crawl file and write the cached USB data stream to the crawl file.

A POS machine comprising: a memory, a processor, and computer readable instructions stored on the memory and executable on the processor, the processor performing the following steps when executing the computer readable instructions:

Configure the port information of the crawling node.

Cache the detected USB data stream when a USB data stream is detected; and

Create a crawl file and write the cached USB data stream to the crawl file.

Details of one or more embodiments of the present application are set forth in the accompanying drawings and description below. Other features, objects, and advantages of the invention will be apparent from the description and appended claims.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings to be used in the embodiments will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present application, Those skilled in the art can also obtain other drawings based on these drawings without any creative work.

1 is a flow chart of a method for capturing debug information of a POS wireless communication module in an embodiment;

2 is a supplementary flowchart of a method for capturing information of a wireless communication module of a POS machine in still another embodiment;

3 is a schematic structural view of a POS machine in an embodiment;

4 is a schematic structural view of a POS machine in still another embodiment;

FIG. 5 is a schematic structural diagram of a POS machine in an embodiment.

detailed description

In order to make the objects, technical solutions, and advantages of the present application more comprehensible, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the application and are not intended to be limiting.

Please refer to FIG. 1 , a method for capturing information of a wireless communication module of a POS machine, including the following steps:

Step 102: Obtain a USB device node of the wireless communication module, and open a capture node of the USB device node for capturing debug information of the wireless communication module.

The debugging information of the wireless communication module is used to locate the debugging problem of the wireless communication module, such as a network failure problem, a TCP connection or a data packet abnormality problem. When the wireless communication module has a debugging problem, the POS machine obtains the USB device node of the wireless communication module, including the node for performing the data service, the node for grasping the debugging information of the wireless communication module, and the like, and is used for opening. Grab the crawl node of the wireless communication module debugging information.

Step 104: Configure port information of the crawling node.

Specifically, after the crawling node is enabled, the POS device configures the port information of the crawling node, and the port information of the crawling node includes: a port baud rate, a port control mode flag constant, and a port local mode flag. Constants, port input mode flag constants, and port output mode flag constants.

Step 106: Send a grab command to the wireless communication module to detect the USB data stream.

Specifically, after the configuration of the port information of the crawling node is completed, the POS machine sends a grab command to the wireless communication module, starts to capture the configuration information of the wireless communication module, and detects the USB data stream. When the POS machine detects the USB data stream, the POS machine performs subsequent steps. Step 108 to step 110.

Step 108: Cache the detected USB data stream when the USB data stream is detected.

Specifically, when the USB data stream is detected, the POS machine reads the detected USB data stream and saves the read USB data stream to the temporary cache.

Step 110: Create a crawl file and write the cached USB data stream into the crawl file.

Specifically, the POS machine creates a capture file in the local flash (Flash EEPROM), writes the cached USB data stream to the capture file, and saves it in the local flash for subsequent technical personnel to analyze the problem. Further, in one embodiment, in order to save storage space and ensure storage speed, the captured file adopts a binary file.

The POS machine wireless communication module debugging information capture method, by acquiring the USB device node of the wireless communication module, opening a capture node for capturing the wireless communication module debugging information, configuring the port information of the capture node; and sending the capture instruction To the wireless communication module, the USB data stream is detected. When the USB data stream is detected, the USB data stream is buffered, and the cached USB data stream is written into the captured file to complete the wireless communication module debugging information capture operation. The debugging method of the wireless communication module of the POS machine realizes the automatic capture of the debugging information of the wireless communication module, and the debugging operation of the wireless communication module is simple and convenient, and the debugging efficiency of the wireless communication module debugging information is greatly improved.

In an embodiment, the method further includes: querying the number of times of detecting the USB data stream when the USB data stream is not detected; and performing the step of detecting the USB data stream when the number of times of detection is less than or equal to the preset number of detection times.

Specifically, in the process of detecting the USB data stream, in order to avoid failure of capturing the wireless communication module debugging information due to failure of detecting the USB data stream, if the USB data stream is not detected, the POS machine re-detects the USB data stream, if re-detected When the USB data stream is detected by the USB data stream, the above steps 108 to 110 are performed; if the USB data stream is not detected by the re-detection, The POS machine can continue to re-detect the USB data stream. In this embodiment, in order to avoid the possibility that the POS machine repeatedly detects the USB data stream and affects the debugging information of the wireless communication module due to multiple detection failures, the preset detection number threshold is preset, and each time the USB data stream is detected, Record the number of times the USB data stream is currently detected. When the USB data stream is not detected, query the number of times the USB data stream is detected. When the number of times of detection is less than or equal to the preset number of detection times, perform the step of detecting the USB data stream and re-detect the USB. Data stream; when the number of detections is greater than the threshold of the preset number of detections, the crawling node is closed, and the debugging operation of the wireless communication module is ended.

In one embodiment, the method further includes recording a start time and an end time of writing the cached USB data stream into the crawl file. Further, as shown in FIG. 2, in an embodiment, the foregoing method further includes:

Step 112: When an interrupt occurs in writing the cached USB data stream to the capture file, the capture instruction is sent to the wireless communication module to detect the USB data stream.

Step 114: When the USB data stream is detected, the detected USB data stream is buffered, and the time interval between the time when the USB data stream is detected and the last time when the USB data stream is written into the grab file is calculated.

Step 116: When the time interval is less than or equal to the preset time interval, the cached USB data stream is written into the last created crawl file.

Step 118: When the time interval is greater than the preset time interval, create a new capture file, write the cached USB data stream into the newly created capture file, and record the USB data stream write time.

Specifically, in this embodiment, if an interruption occurs in the process of writing the cached USB data stream into the capture file, the POS machine resends the capture instruction to the wireless communication module to re-detect the USB data stream, and if the probe is re-detected To the USB data stream, the detected USB data stream continues to be cached. In order to avoid the possibility that the POS machine repeatedly detects the USB data stream and affects the debugging information of the wireless communication module due to multiple detection failures, in one embodiment, the cached USB data stream may also be pre-set to be written into the captured file. The threshold of the preset interrupt detection number of the USB data stream is re-detected when an interruption occurs, and after the USB data stream write interrupt occurs, the number of times the current USB data stream is currently detected is recorded each time the USB data stream is detected, when the USB data stream is not detected. When querying probe USB The number of times of the data stream; when the number of times of detection is less than or equal to the threshold value of the preset number of interrupt detections, the USB data stream is re-detected; when the number of times of detection is greater than the threshold number of the preset terminal detection times, the crawling node is closed, and the debugging information of the wireless communication module is ended. operating.

Further, due to the limitation of the cache storage space, in one embodiment, the preset time interval for re-probing the USB data stream after the interruption is set in advance, and if the USB data stream is detected after re-probing after the USB data stream write interruption occurs, The time to re-detect the USB data stream is compared with the end time of the last USB data stream written to the fetch file, and the time to re-detect the USB data stream is calculated and the last time the USB data stream is written to the fetch file. Time interval, if the time interval is less than or equal to the preset time interval, the data stream is continuously written to the original binary file for continuous recording; if the time interval is greater than the preset time interval, the existing binary file is closed, and Create a new binary file, write the re-detected data stream to the new binary file, and record the time at which the write started. In this embodiment, by setting a preset time interval, selecting a USB data stream to be continuously written into the original capture file or rewriting the new capture file after the write interruption occurs, on the one hand, the USB data can be avoided after the interruption time is too long. When the stream is written into a crawl file, the USB data stream stored is not continuous, which is inconvenient for subsequent analysis. On the other hand, it can also avoid storing multiple crawl files after a short interruption, causing the captured file not to be viewed when analyzing data. Convenience.

Further, the POS machine determines whether an interrupt is generated by writing a USB data stream to the capture file by detecting whether the end capture instruction is acquired. If the end of the capture operation is not obtained when the USB data stream is written to the capture file, An interrupt is generated to write the USB data stream to the capture file. If the USB data stream is written to the capture file after receiving the end capture instruction, the USB data stream is written to the capture file and the write end is completed normally, and no write interruption occurs. At this time, the crawling node is closed, and the debugging operation of the wireless communication module is ended.

Further, the following specific application examples are used to describe the above-mentioned POS wireless communication module debugging information capture method in detail. For convenience of description, the wireless communication module uses a 4G wireless communication module as an example for description. However, in other embodiments, the wireless communication module may also be a 2G wireless communication module or a 3G wireless communication module. Or a 5G wireless communication module, the embodiment is used to define a specific type of the wireless communication module, and the above POS wireless communication The module debugging information capture method can be applied to any type of POS wireless communication module.

A POS machine wireless communication module debugging information capture method, comprising the following steps:

1) Obtain a USB device node of the wireless communication module, and open a capture node of the USB device node for capturing the debugging information of the wireless communication module.

Specifically, the CPU (central processing unit) of the POS machine and the 4G wireless communication module are connected by a USB cable, and the POS machine starts up to enumerate the USB related information between the CPU of the POS machine and the 4G wireless communication module. After obtaining the debugging instruction of the wireless communication module debugging information, the POS machine first obtains USB related information between the CPU of the POS machine and the 4G wireless communication module, including a ttyACM0 node for performing data service, for capturing the wireless communication module. The ttyACM1 node of the debugging information (that is, the crawling node) and the node information of the ttyACM3 node for sending the AT command, if the USB device node of the wireless communication module fails to complete the debugging operation of the wireless communication module; if the wireless communication is obtained If the USB device node of the module is successful, the ttyACM1 node for capturing the debugging information of the wireless communication module is turned on. If the ttyACM1 node fails to be opened, the USB device node is closed to end the debugging operation of the wireless communication module; if the ttyACM1 node is properly opened, the execution continues. Next, the ttyACM1 node configuration operation.

2) Configure the port information of the crawling node.

Specifically, the ttyACM1 node is correctly opened and configured to obtain the trace information of the 4G wireless communication module. Therefore, in order to allow the USB data stream of the debugging information of the wireless communication module to be output from the ttyACM1 node in a correct and controllable manner, the capture mode setting is required after the capture node is started, and the port information of the capture node is correctly configured. To ensure that the USB data stream of the wireless communication module is output from the ttyACM1 node in a correct manner. If the configuration of the port information of the capture node fails, the debugging of the wireless communication module cannot be performed, and the POS machine closes. Take the node and end the debugging of the wireless communication module debugging information.

In one embodiment, the port information of the capture node includes: a port baud rate, a port control mode flag constant, a port local mode flag constant, a port input mode flag constant, and a port output mode flag constant. The port information configuration of the specific ttyACM1 node includes the following:

a), using the terminal control function, set the port of the terminal device structure port of the ttyACM1 node The rate is 115200.

b), set the terminal device structure port control mode flag constant c_cflag: First, set the CLOCAL flag bit, used to ignore the control line of the 4G wireless communication module. Then, set the CREAD flag to open the recipient. Next, set the CS8 flag to set the character length mask to 8 to specify the number of bits used to transmit or receive bytes to 8 bits. Finally, the HUPCL flag is set to hang up the control line of the 4G wireless communication module after a process has shut down the device.

c) Further setting the control mode flag constant of the terminal device structure port c_cflag: First, the PARENB flag is set to allow the output to generate parity information and input parity (to initiate parity generation and detection). Then, set the CSIZE flag to set the character length mask. Finally, set the CSTOPB flag to set two stop bits.

d) Set the local mode flag of the terminal device structure port. The constant c_lflag: First, set the ICANON flag to enable the standard mode, allowing the use of special characters EOF, EOL, EOL2, ERASE, KILL, LNEXT, REPRINT, STATUS and WERASE. And a cache by row. Then, set the ECHO flag to echo the input characters. Next, set the ECHOE flag to erase the previous input character or erase the previous word. Finally, the ISIG flag is set to generate a corresponding signal when the characters INTR, QUIT, SUSP or DSUSP are accepted.

e) Set the input mode flag constant of the terminal device structure port c_iflag: First, set the INLCR flag bit to translate the NL in the input into CR (convert the received line feed symbol to Return). Then, set the ICRNL flag to translate the carriage return in the input to a new line (unless IGNCR is set, the input will not be terminated when the input signal has CR). Next, set the IGNCR flag to ignore the carriage return in the input. Next, set the IXON flag to enable XON/XOFF flow control for the output. Finally, the IXOFF flag is set to enable the XON/XOFF flow control of the input.

f), further set the terminal device structure port input mode flag constant c_iflag: set the IGNPAR flag bit, used to ignore 桢 errors and parity errors.

g), set the terminal device structure port output mode flag constant c_oflag: First, set the OPOST flag bit, used to enable specific implementation of the self-defined output processing. Then, set ONLRET Flag bit, used to not output a carriage return. Next, set the ONOCR flag to not output a carriage return in column 0. Finally, the OCRNL flag is set to map the carriage return in the output to a newline character.

Specifically, in one embodiment, the status of each of the above flag bits is set to 1, and the corresponding flag bit function is turned on. When the flag bit status is 0, the flag bit function is turned off. Of course, in other embodiments, the flag bit function can be set when the flag bit status is 0, and the flag bit function is turned off when the flag bit is 1, which can be set according to actual needs, which is not specifically limited in this embodiment.

3) Send a grab command to the wireless communication module to detect the USB data stream.

Specifically, after the setting of each flag bit in step 2) is completed, the POS machine sends a grab command to the wireless communication module, turns on the wireless communication module debug information capture mode, and detects the USB data stream. In one embodiment, the POS sends an AT command "AT+TRACE=1" to the 4G wireless communication module through the ttyACM3 node, and the wireless communication module debug information capture mode is turned on. If the AT command fails to be sent, the capture node is closed. End the crawl operation. Further, the AT command is a command set for communication by the wireless communication module, and is an application interface provided by the wireless communication module, and the POS device performs communication and data service operations with the wireless through the AT command.

4) Cache the detected USB data stream when the USB data stream is detected.

Specifically, the POS machine detects the USB data stream and performs flow control on the USB data stream through the read function of the internal API function of the system. If there is a USB data stream, the read function is used to read and read the data at a certain speed. A temporary buffer in a temporary buffer that caches the detected USB data stream. If the probe fails, close the ttyACM1 node and end the crawl operation.

Further, in an embodiment, in the process of detecting the USB data stream, in order to avoid failure of capturing the wireless communication module debugging information due to failure of detecting the USB data stream, if the USB data stream is not detected, the POS machine re-detects the USB. The data stream, if the USB data stream is detected when the USB data stream is re-detected, the detected USB data stream is cached; if the USB data stream is not detected by re-probing, the POS machine can continue to re-detect the USB data stream. Moreover, in order to avoid the possibility that the POS machine repeatedly detects the USB data stream and affects the debugging information of the wireless communication module due to multiple detection failures, the preset detection number threshold may be preset, and the USB number is detected each time. According to the flow, the number of times of detecting the USB data stream is recorded. When the USB data stream is not detected, the number of times of detecting the USB data stream is queried; when the number of times of detection is less than or equal to the preset number of detection times, the step of detecting the USB data stream is performed. Re-detecting the USB data stream; when the number of detections is greater than the preset detection number threshold, the capture node is closed, and the debugging operation of the wireless communication module is ended.

5) Create a crawl file and write the cached USB data stream to the crawl file.

Specifically, a binary capture file is created in the local flash (flash memory) of the POS machine, the USB data stream in the temporary buffer is written into the capture file, and the captured wireless communication module is saved in the local flash of the POS machine. Debugging information, when the end of the fetching instruction is obtained, the POS machine closes the fetching file, closes the fetching node, and completes the fetching operation. If the USB data stream fails to be written to the fetching file, the crawling node is closed, and the wireless communication module is terminated. Debug information fetching operations.

Further, if an interruption occurs in the process of writing the cached USB data stream to the capture file, the POS machine can resend the capture instruction to the wireless communication module, re-probe the USB data stream, and detect the USB data stream if re-detected. , then continue to cache the detected USB data stream and write the cached USB data stream to the crawl file. In an embodiment, a preset time interval (eg, 1 minute) for re-probing the USB data stream after the interruption may be preset, and if the USB data stream is detected during re-probing after the USB data stream write interruption occurs, the USB data stream is re-detected. The time to the USB stream is compared to the end time of the last USB stream written to the fetch file, and the time to re-detect the USB stream is calculated and the last time the USB stream was written to the fetch file. Time interval. If the time interval is less than or equal to the preset time interval, the data stream is continuously written to the original binary file for continuous recording. If the time interval is greater than the preset time interval, the existing binary file is closed and the new file is re-established. The binary file, writes the re-detected data stream to the new binary file, and records the time at which the write started.

The debugging information of the wireless communication module of the POS machine can automatically capture the debugging information of the wireless communication module, greatly improving the debugging efficiency of the debugging information of the wireless communication module, and the debugging information of the captured wireless communication module is stored in the local flash. The PC tool can export the captured files to a PC (personal computer) for debugging information analysis (such as net state analysis, TCP/IP packet analysis, etc.). Moreover, the method is simple and convenient to operate, if there is no POS machine If there is a problem with the line communication module, the ordinary user can perform the debugging of the wireless communication module debugging information. After the user exports the captured file, the user can send it to the professional technician of the POS machine manufacturer for debugging information analysis, which can realize the remote positioning analysis problem of the technician. It can save the time cost and economic cost (such as transportation cost) of problem analysis and location on the way to the site, which is beneficial to improve the efficiency of technicians and reduce the maintenance cost of POS.

Referring to FIG. 3, a structural block diagram of a POS machine 300 is provided. Each of the following modules may be implemented in whole or in part by software, hardware or a combination thereof.

Referring to FIG. 3, the POS machine 300 includes:

The crawling node opening module 302: obtains a USB device node of the wireless communication module, and opens a crawling node of the USB device node for capturing debugging information of the wireless communication module.

The port information configuration module 304 is configured to configure port information of the fetch node.

The first data detecting module 306 is configured to send a grab command to the wireless communication module to detect the USB data stream.

The first data cache module 308 is configured to cache the detected USB data stream when the USB data stream is detected.

The first data storage module 310 is configured to create a crawl file and write the cached USB data stream into the crawl file.

In an embodiment, the POS machine 300 further includes:

The detection times query module 312 is configured to query the number of times the USB data stream is detected when the USB data stream is not detected.

The detection number comparison module 314 is configured to send the first detection instruction to the first data detection module 306 when the number of detection times is less than or equal to the preset detection number threshold.

As shown in FIG. 4, in an embodiment, the POS machine 300 further includes:

The timing module 316 is configured to record a start time and an end time of writing the cached USB data stream into the capture file.

In an embodiment, the POS machine 300 further includes:

The interrupt detection module 318 is configured to send the second probe instruction to the second data detection module 320 when an interrupt occurs in writing the cached USB data stream to the capture file.

The second data detecting module 320 is configured to send a grab command to the wireless communication module according to the second detecting instruction to detect the USB data stream.

The second data cache module 322 is configured to cache the detected USB data stream when the USB data stream is detected, and calculate the time when the USB data stream is detected and the end time of the last time the USB data stream is written into the captured file. Interval.

The second data storage module 324 is configured to write the cached USB data stream into the newly created capture file when the time interval is less than or equal to the preset time interval; when the time interval is greater than the preset time interval, the new data capture module Take the file, write the cached USB data stream to the newly created capture file, and record the USB data stream write time.

In one embodiment, the port information of the capture node includes: a port baud rate, a port control mode flag constant, a port local mode flag constant, a port input mode flag constant, and a port output mode flag constant.

In one embodiment, there is provided one or more computer readable non-volatile storage media storing computer readable instructions, the computer readable instructions being executed by one or more processors such that the one Or multiple processors perform the following steps:

Configure the port information of the crawling node.

Cache the detected USB data stream when a USB data stream is detected; and

Create a crawl file and write the cached USB data stream to the crawl file.

In one embodiment, the computer readable instructions described above are further executed by the processor to:

Query the number of times the USB data stream is detected when no USB data stream is detected; and

The step of detecting the USB data stream is performed when the number of detections is less than or equal to a preset number of detection thresholds.

In one embodiment, the computer readable instructions described above, when executed by the processor, further implement the step of recording a start time and an end time of writing the cached USB data stream into the fetch file.

In one embodiment, when the computer readable instructions are executed by the processor, the following steps are further implemented: when an interrupt occurs in writing the cached USB data stream to the fetch file, sending a fetch command to the wireless communication module , detecting USB data stream;

Cacheing the detected USB data stream when the USB data stream is detected, and calculating a time when the USB data stream is detected and an end time of writing the USB data stream to the crawl file last time time interval;

Writing the cached USB data stream to the last created crawl file when the time interval is less than or equal to the preset time interval; and

When the time interval is greater than the preset time interval, a new capture file is created, the cached USB data stream is written into the newly created capture file, and the USB data stream write time is recorded.

In one embodiment, when the computer readable instructions are executed by the processor, the following steps are further implemented: the port information of the crawling node includes: a port baud rate, a port control mode flag constant, a port local mode flag constant, and a port input. Mode flag constants and port output mode flag constants.

In one embodiment, a POS machine is also provided, comprising: a memory, a processor, and computer readable instructions stored on the memory and executable on the processor, the processor performing the following steps when executing the computer readable instructions:

Configure the port information of the crawling node.

Cache the detected USB data stream when a USB data stream is detected; and

Create a crawl file and write the cached USB data stream to the crawl file.

Specifically, as shown in FIG. 5, in one embodiment, the POS machine described above includes a processor and a memory connected by a system bus, the memory including a non-volatile storage medium and an internal memory. The non-volatile storage medium of the POS machine stores an operating system, and further includes a computer readable instruction. The computer readable instructions are executable by the processor for implementing a POS wireless communication module debugging information capture method. In one embodiment, the processor is a CPU of the POS machine for providing computing and control capabilities to support the operation of the entire POS machine. The internal memory in the POS machine provides a cached operating environment for operating systems and computer readable instructions in a non-volatile storage medium. Those skilled in the art can understand that the structure shown in FIG. 5 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation of the POS machine to which the solution of the present application is applied. The specific POS machine can It includes more or fewer components than those shown in the figures, or some components are combined, or have different component arrangements.

In one embodiment, the processor also performs the following steps when executing the computer readable instructions:

When the number of detections is less than or equal to the preset number of detection thresholds, the step of detecting the USB data stream is performed.

In one embodiment, the processor, when executing the computer readable instructions, also performs the step of recording a start time and an end time of writing the cached USB data stream into the fetch file.

When an interrupt occurs in writing the cached USB data stream to the capture file, the capture instruction is sent to the wireless communication module to detect the USB data stream;

When the USB data stream is detected, the detected USB data stream is buffered, and the time interval between the time when the USB data stream is detected and the last time the USB data stream is written into the grab file is calculated;

When the time interval is less than or equal to the preset time interval, the cached USB data stream is written into the last created crawl file; and

A person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a non-volatile computer readable storage medium. The program, when executed, may include the flow of an embodiment of the methods as described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or the like.

The technical features of the above embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, It is considered to be the range described in this specification.

The above embodiments are merely illustrative of several embodiments of the present application, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the present application. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A POS machine wireless communication module debugging information capture method, characterized in that the method comprises the following steps:

Obtaining a USB device node of the wireless communication module, and opening a capture node of the USB device node for capturing debug information of the wireless communication module;

Configuring port information of the crawling node;

Send a capture command to the wireless communication module to detect the USB data stream;

Cache the detected USB data stream when a USB data stream is detected; and

Create a crawl file to write the cached USB data stream to the crawl file.
The method of claim 1 further comprising:

Query the number of times the USB data stream is detected when no USB data stream is detected; and

The step of detecting the USB data stream is performed when the number of detections is less than or equal to a preset number of detection thresholds.
The method of claim 1 or 2, further comprising: recording a start time and an end time of writing the cached USB data stream into the fetch file.
The method of claim 3, further comprising:

Sending a fetch command to the wireless communication module to detect a USB data stream when an interrupt occurs in writing the cached USB data stream to the fetch file;

Cacheing the detected USB data stream when the USB data stream is detected, and calculating a time when the USB data stream is detected and an end time of writing the USB data stream to the crawl file last time time interval;

Writing the cached USB data stream to the last created crawl file when the time interval is less than or equal to the preset time interval; and

When the time interval is greater than the preset time interval, a new capture file is created, the cached USB data stream is written into the newly created capture file, and the USB data stream write time is recorded.
The method according to claim 1, wherein the port information of the crawling node comprises: a port baud rate, a port control mode flag constant, a port local mode flag constant, and a port. Input mode flag constants and port output mode flag constants.
One or more computer readable non-volatile storage media storing computer readable instructions, when executed by one or more processors, cause the one or more processors to perform the steps of:

Obtaining a USB device node of the wireless communication module, and opening a capture node of the USB device node for capturing debug information of the wireless communication module;

Configure the port information of the crawling node.

Send a capture command to the wireless communication module to detect the USB data stream;

Cache the detected USB data stream when a USB data stream is detected; and

Create a crawl file and write the cached USB data stream to the crawl file.
The storage medium of claim 6 wherein said computer readable instructions are further executed by said processor to:

Query the number of times the USB data stream is detected when no USB data stream is detected; and

The step of detecting the USB data stream is performed when the number of detections is less than or equal to a preset number of detection thresholds.
A storage medium according to claim 6 or claim 7, wherein said computer readable instructions are further executed by said processor to: record a start time of writing the cached USB data stream into said fetched file and End Time.
The storage medium of claim 8 wherein said computer readable instructions are further executed by said processor to:

Sending a fetch command to the wireless communication module to detect a USB data stream when an interrupt occurs in writing the cached USB data stream to the fetch file;

Cacheing the detected USB data stream when the USB data stream is detected, and calculating a time when the USB data stream is detected and an end time of writing the USB data stream to the crawl file last time time interval;

Writing the cached USB data stream when the time interval is less than or equal to the preset time interval The last time the crawl file was created; and

When the time interval is greater than the preset time interval, a new capture file is created, the cached USB data stream is written into the newly created capture file, and the USB data stream write time is recorded.
The storage medium according to claim 6, wherein the port information of the crawling node comprises: a port baud rate, a port control mode flag constant, a port local mode flag constant, a port input mode flag constant, and a port output mode. Flag constant.
A POS machine comprising: a memory, a processor, and computer readable instructions stored on the memory and executable on the processor, wherein the processor, when executing the computer readable instructions, implements the following steps:

Obtaining a USB device node of the wireless communication module, and opening a capture node of the USB device node for capturing debug information of the wireless communication module;

Configuring port information of the crawling node;

Send a capture command to the wireless communication module to detect the USB data stream;

Cache the detected USB data stream when a USB data stream is detected; and

Create a crawl file to write the cached USB data stream to the crawl file.
The POS machine according to claim 11, wherein the processor further executes the step of: querying the number of times of detecting the USB data stream when the USB data stream is not detected; and

The step of detecting the USB data stream is performed when the number of detections is less than or equal to a preset number of detection thresholds.
A POS machine according to claim 11 or 12, wherein said processor, when said computer readable instructions are executed, further performs the step of recording the beginning of writing the cached USB data stream into said fetched file Time and end time.
The POS machine of claim 13 wherein said processor further performs the following steps when said computer readable instructions are executed:

Sending a fetch command to the wireless communication module to detect a USB data stream when an interrupt occurs in writing the cached USB data stream to the fetch file;

Cacheing the detected USB data stream when the USB data stream is detected, and calculating a time when the USB data stream is detected and an end time of writing the USB data stream to the crawl file last time time interval;

Writing the cached USB data stream to the last created crawl file when the time interval is less than or equal to the preset time interval; and

When the time interval is greater than the preset time interval, a new capture file is created, the cached USB data stream is written into the newly created capture file, and the USB data stream write time is recorded.
The POS machine according to claim 11, wherein the port information of the grabbing node comprises: a port baud rate, a port control mode flag constant, a port local mode flag constant, a port input mode flag constant, and a port output mode. Flag constant.