Wireless system calibration method and device of POS terminal and storage medium

Abstract

The invention discloses a wireless system calibration method and device of a POS terminal and a storage medium. The wireless system calibration method and device are used for calibrating the wireless system of the POS terminal in the early stage. The method comprises the following steps: in a shutdown state, wireless systems supported by the POS terminal are calibrated, different wireless systems have different calibration anchor points, in the calibration process, the calibration anchor points of the wireless systems passing calibration are marked through a first register value, and the calibration anchor points of the wireless systems passing calibration are marked through a second register value; and marking the calibration anchor points of the wireless system which do not pass the calibration through a second register value, reading the register values of all the calibration anchor points of the POS terminal in a power-on state, and if the register values of all the calibration anchor points of the POS terminal are the first register value, determining that the calibration is passed, otherwise, determining that the calibration is not passed.

Description

Technical Field

[0001] The present application relates to the technical field of POS terminals, and in particular to a method, device and storage medium for wireless standard calibration of a POS terminal. Background Art

[0002] POS terminal is an electronic device with cash or bartering functions, which is widely used in shopping malls, supermarkets, catering industry and other retail places, playing an important role in improving cash register efficiency, ensuring transaction security, optimizing business management, etc. It is not only used to complete consumer payment, but also has a variety of management and service functions.

[0003] In the prior art, POS terminal calibration is performed by the production line operator using a jig. However, during the operation, uncalibrated or uncalibrated prototypes are often sent to the next process. If subsequent tests find that the performance indicators are abnormal, the only way to determine whether the calibration is performed is to check whether the calibration parameters have been written through R&D tools. This leads to low production efficiency and high reliance on manual labor. Summary of the invention

[0004] In order to solve the above technical problems, the present application provides a wireless standard calibration method, device and storage medium for a POS terminal.

[0005] The technical solution provided in this application is described below:

[0006] In a first aspect, the present application provides a wireless standard calibration method for a POS terminal, the method comprising:

[0007] In the off state, calibration is performed for the wireless standards supported by the POS terminal, wherein different wireless standards have different calibration anchor points;

[0008] During the calibration process, the calibration anchor point of the wireless system that has passed the calibration is marked by the first register value, and the calibration anchor point of the wireless system that has not passed the calibration is marked by the second register value;

[0009] In a powered-on state, reading register values ​​of all calibration anchor points of the POS terminal;

[0010] If the register values ​​of all the calibration anchor points of the POS terminal are the first register values, the calibration is passed; otherwise, the calibration is failed.

[0011] Optionally, after the calibration fails, the method further includes:

[0012] Determine a calibration anchor point whose register value is the second register value as an abnormal calibration anchor point;

[0013] Generate and display information about the abnormal wireless standard corresponding to the abnormal calibration anchor point.

[0014] Optionally, after the calibration fails, the method further includes:

[0015] In the off state, recalibrate for the wireless standard supported by the POS terminal.

[0016] Optionally, the calibrating a wireless standard supported by the POS terminal includes:

[0017] In response to pressing a preset key combination of the POS terminal, entering a calibration mode;

[0018] In the calibration mode, the response calibration tool performs a calibration operation for the wireless format supported by the POS terminal.

[0019] Optionally, the method further includes:

[0020] After calibration is complete, exit the calibration mode.

[0021] Optionally, before marking the calibration anchor point of the wireless standard that has passed the calibration by using the first register value, and marking the calibration anchor point of the wireless standard that has failed the calibration by using the second register value, the method further includes:

[0022] Initialize register values ​​of calibration anchor points of each of the wireless standards.

[0023] Optionally, marking the calibration anchor point of the wireless standard that has passed the calibration by the first register value, and marking the calibration anchor point of the wireless standard that has failed the calibration by the second register value, includes:

[0024] Mark the calibration anchor point of the wireless system that has passed the calibration as 1;

[0025] The calibration anchor point of the wireless system that fails the calibration is marked as 0.

[0026] A second aspect of the present application provides a wireless standard calibration device for a POS terminal, the method comprising:

[0027] A calibration unit, used for calibrating the wireless standards supported by the POS terminal in a powered-off state, wherein different wireless standards have different calibration anchor points;

[0028] A marking unit, used to mark the calibration anchor point of the wireless system that has passed the calibration through the first register value, and mark the calibration anchor point of the wireless system that has not passed the calibration through the second register value during the calibration process;

[0029] A reading unit, used for reading register values ​​of all calibration anchor points of the POS terminal in a powered-on state;

[0030] The judgment unit is configured to determine that the calibration is successful if the register values ​​of all the calibration anchor points of the POS terminal are the first register values, and that the calibration is unsuccessful otherwise.

[0031] A third aspect of the present application provides a wireless standard calibration device for a POS terminal, the device comprising:

[0032] Processor, memory, input-output unit, and bus;

[0033] The processor is connected to the memory, the input and output unit, and the bus;

[0034] The memory stores a program, and the processor calls the program to execute the first aspect and any optional method in the first aspect.

[0035] A fourth aspect of the present application provides a computer-readable storage medium, on which a program is stored. When the program is executed on a computer, the program executes the first aspect and any optional method in the first aspect.

[0036] It can be seen from the above technical solutions that this application has the following advantages:

[0037] The present application marks the calibration anchor point of the wireless format that has passed the calibration by the first register value, and marks the calibration anchor point of the wireless format that has failed the calibration by the second register value. According to the register value of the calibration anchor point of the POS terminal read, the POS prototypes that have not been calibrated or have failed the calibration are automatically identified and intercepted, thereby improving production efficiency, automatically testing whether performance indicators are qualified, reducing manual labor requirements, reducing dependence on manual labor, and making it more intelligent to determine whether the prototype has been successfully calibrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solution in the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 A schematic diagram of an embodiment of a wireless standard calibration method for a POS terminal in the present application;

[0040] Figure 2 A schematic diagram of an embodiment in which the POS terminal calibration fails in the present application;

[0041] Figure 3 A schematic diagram of an embodiment of calibrating a wireless system in the present application;

[0042] Figure 4 A schematic diagram of an embodiment of marking register values ​​in the present application;

[0043] Figure 5 A schematic diagram of an embodiment of a wireless standard calibration device for a POS terminal in the present application;

[0044] Figure 6 It is a schematic diagram of another embodiment of the wireless standard calibration device of the POS terminal in the present application. DETAILED DESCRIPTION

[0045] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0046] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0047] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0048] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0049] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0050] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0051] In the prior art, a POS terminal is an electronic device with cash or bartering functions, which is widely used in various retail places such as shopping malls, supermarkets, and catering industries, and plays an important role in improving cash register efficiency, ensuring transaction security, and optimizing business management. It is not only used to complete consumer payments, but also has a variety of management and service functions.

[0052] In the prior art, POS terminal calibration is performed by the production line operator using a jig. However, during the operation, uncalibrated or uncalibrated prototypes are often sent to the next process. If subsequent tests find that the performance indicators are abnormal, the only way to determine whether the calibration is performed is to check whether the calibration parameters have been written through R&D tools. This leads to low production efficiency and high reliance on manual labor.

[0053] Based on this, the present application discloses a wireless standard calibration method, device and storage medium for a POS terminal, which are used to improve production efficiency.

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0055] The method of the present application can be applied to a server, a device, a terminal or other devices with logic processing capabilities, and the present application does not limit this. For the convenience of description, the following description is made by taking the execution subject as an example of a terminal.

[0056] See also Figure 1 The present application first provides an embodiment of a wireless standard calibration method for a POS terminal, the calibration method comprising:

[0057] S101, in a power-off state, calibrating a wireless standard supported by the POS terminal, wherein different wireless standards have different calibration anchor points;

[0058] Wireless standards refer to the standards and specifications of wireless networks, which determine the network's data transmission method, speed and compatibility.

[0059] The calibration anchor points of wireless standards include GSM, WCDMA and LTE. Each calibration anchor point has a specific screen coordinate, which is usually expressed in pixels. These coordinate values ​​are encoded in a specific byte format for transmission and processing during the touch screen calibration process. In addition to the anchor point coordinates, the calibration process also involves other types of calibration data, such as the sensitivity and response time of the touch screen. These data are also encoded in a specific byte format. The communication between the POS terminal and the touch screen calibration software usually follows a specific communication protocol. These protocols define the data transmission format, verification method, etc. to ensure the accuracy and integrity of the data.

[0060] S102: During the calibration process, marking the calibration anchor point of the wireless system that has passed the calibration by using the first register value, and marking the calibration anchor point of the wireless system that has failed the calibration by using the second register value;

[0061] A register is a high-speed memory, mainly composed of a group of flip-flops (or latches). Each flip-flop can store a binary bit (0 or 1), so a register composed of multiple flip-flops can store multi-bit binary numbers. These flip-flops are usually implemented by flip-flop chips, which are directly integrated into the CPU and closely connected to the CPU's arithmetic unit and logic control unit.

[0062] During the calibration process, when a calibration anchor point of a certain wireless system reaches a predetermined calibration standard, the corresponding register value is set to a first register value; if a calibration anchor point of a wireless system fails to reach the predetermined calibration standard, the corresponding register value is set to a second register value.

[0063] Registers involve the coordination of clock signals and control signals. Clock signals are used to synchronize the read and write operations of registers to ensure the stability and correctness of data. Control signals are used to control the read and write operations of registers, including enable signals, write enable signals, and read enable signals. These signals work together to enable registers to store, read, and process data in a predetermined manner.

[0064] S103, in the power-on state, reading register values ​​of all calibration anchor points of the POS terminal;

[0065] When the computer needs to read data, it sends a read instruction and specifies the address of the register to be read. After receiving the read instruction, the register transmits the register values ​​of all calibration anchor points to the specified location through the data bus. Since the register values ​​have been divided into the first register value and the second register value, the register values ​​of all calibration anchor points read have been classified according to the wireless standard, so it is faster and easier to distinguish the register values.

[0066] S104: If the register values ​​of all the calibration anchor points of the POS terminal are the first register values, the calibration is successful; otherwise, the calibration is unsuccessful.

[0067] Compare the register value of each calibration anchor point with the preset first register value to check whether there is any register value that does not match the first register value. If the register value of any calibration anchor point is not the first register value, the calibration fails. The POS terminal that passes the calibration is turned on normally for subsequent testing, and the POS terminal that fails the calibration is returned to the calibration station for recalibration. The calibrated POS terminal can read and record transaction data more accurately, reducing transaction errors caused by equipment errors.

[0068] In this embodiment, the calibration anchor point of the wireless standard that has passed the calibration is marked by the first register value, and the calibration anchor point of the wireless standard that has failed the calibration is marked by the second register value. According to the register value of the calibration anchor point of the POS terminal that is read, the POS prototypes that are not calibrated or fail the calibration are automatically identified and intercepted, thereby improving production efficiency, automatically testing whether performance indicators are qualified, reducing manual labor requirements, reducing dependence on manual labor, and making it more intelligent to determine whether the prototype has been successfully calibrated.

[0069] In the above step S104, the calibration is successful when the register values ​​of all the calibration anchor points of the POS terminal are the first register values. Figure 2 , Figure 2 An embodiment after calibration fails includes the following steps:

[0070] S201, determining a calibration anchor point whose register value is a second register value as an abnormal calibration anchor point;

[0071] A register is a component used to store data. An abnormal calibration anchor point is a reference point determined during the calibration process. It corresponds to the value in the register and has specific parameters. The calibration anchor point can determine whether the device can work normally based on the specific parameters. When the register value reaches this specific parameter, it means that the calibration of the device has failed and the performance index is abnormal. Determining the abnormal calibration anchor point helps detect faults or abnormal conditions in the device. When a calibration anchor point is determined to be abnormal, it means that there is a problem with the related hardware component, software algorithm, or data processing flow. It helps to identify abnormal states and abnormal situations of the device, prevent confusion between damaged devices and intact devices, and improve the efficiency of device calibration.

[0072] S202, generating and displaying information of abnormal wireless standards corresponding to abnormal calibration anchor points;

[0073] There is a mapping relationship between the calibration anchor point and the wireless standard. Each wireless standard in the device has a corresponding calibration anchor point to ensure its normal operation. When the calibration anchor point is determined to be abnormal, it is necessary to find the corresponding wireless standard. After the abnormal wireless standard is determined, detailed information about the wireless standard is obtained. The detailed information includes the basic parameters of the wireless standard (such as frequency range, bandwidth, modulation mode, etc.), the current connection status (such as whether it is connected, signal strength, etc.), and possible fault-related information (such as whether there is interference, hardware failure, etc.).

[0074] The way to display information varies depending on the specific device or system. On mobile devices, it can be displayed through the network information page in the system settings. When the corresponding calibration anchor point is abnormal, a prompt box pops up on the settings page, displaying "Device calibration abnormality". In the network management system, information about abnormal wireless standards will be displayed in a table or graphical form. List the abnormal wireless standards, their frequency ranges, connection status, possible causes of failure (such as calibration parameter errors) and other information in a table. Displaying abnormal information helps to better discover the cause of the abnormality and where the abnormality is located.

[0075] S203: In the power-off state, recalibrate the wireless standard supported by the POS terminal.

[0076] According to the abnormal information, use the corresponding calibration tools, including calibration equipment, test instruments and software tools. According to the provided abnormal anchor point format information, find the corresponding hardware component or software module in the POS terminal. Use the test instrument or software tool to further confirm the specific location and status of the abnormal anchor point. If the abnormality is caused by calibration deviation, use the calibration tool to recalibrate the POS terminal according to the calibration process. If the abnormality is caused by hardware failure, replace the faulty component or perform other maintenance operations. After completing the calibration or repair, re-read the calibration anchor point information to verify whether the problem has been resolved. After all calibration anchor points are verified to be normal, confirm that the calibration process has been completed and perform the corresponding calibration steps, including adjusting the transmit power, receive sensitivity, frequency error and other parameters.

[0077] In this embodiment, abnormal wireless standard information is generated for the prototype that fails calibration and recalibration is performed, indicating where recalibration is required, which facilitates recalibration for the wireless standards supported by the POS terminal and enables rapid discovery of faulty locations.

[0078] In the above step S203, calibration is performed for the wireless standard supported by the POS terminal. Figure 3 , Figure 3 An embodiment for calibrating a wireless system includes the following steps:

[0079] S301, responding to a pressing operation of a preset combination key of the POS terminal to enter a calibration mode;

[0080] Long press or press a specific key combination at the same time to add a function key to the power button. The key combination is preset and is used to start and enter calibration mode when the device is powered off. The user is prompted by a sound or indicator light to indicate that the calibration tool has been successfully connected. After the calibration mode is started, all uncalibrated anchor points, parameters that have not been determined by the calibration process, or the initial values ​​of the settings are set to null.

[0081] S302, in the calibration mode, responding to the calibration tool to perform calibration on the wireless standard supported by the POS terminal;

[0082] During the calibration mode, follow the on-screen instructions to enter the calibration mode. Connect the calibration tool to the POS terminal. In the calibration mode, click the touch screen calibration related options to run the calibration program to calibrate the wireless standards supported by the POS terminal. After the calibration is completed, exit the calibration mode and restart the POS terminal to ensure that the calibration settings take effect.

[0083] S303: After the calibration is completed, exit the calibration mode.

[0084] After exiting the calibration mode, record the date, time, results and any relevant comments of the calibration. Exiting the standard mode marks the end of the calibration process and ensures that the POS terminal returns to normal working condition.

[0085] In this embodiment, the wireless mode is calibrated by entering the calibration mode, which is distinguished from the normal working mode of the POS terminal and will not affect the normal use of the POS terminal. It is more convenient and quick to calibrate the POS terminal that needs to be calibrated.

[0086] In the above step S102, the register value is used to mark whether the calibration anchor point of the wireless system has been calibrated. Figure 4 , Figure 4 An embodiment for marking a register value includes the following steps:

[0087] S401, initializing the register value of the calibration anchor point of each wireless standard;

[0088] The register values ​​are divided into two types, the first register value indicates that the calibration has passed, and the second register value indicates that the calibration has not passed. In the internal memory of the POS terminal, an independent storage space is allocated for each determined register value. The size of this space should be determined based on the expected size of the register value and the storage requirements. The status and related data of the register value are stored in the storage space of the corresponding register value. This ensures that when the POS terminal determines whether the calibration has passed based on the register value, these register values ​​can be accurately referenced.

[0089] S402, marking the calibration anchor point of the wireless system that has passed the calibration as 1;

[0090] Extract all anchor bytes from the calibration anchor information read to obtain the status of each anchor. Traverse the extracted anchor bytes and check whether they are all equal to 1 through simple loops and conditional judgments. If all anchor bytes are 1, it means that the calibration anchors of the POS terminal are in normal status and have passed the calibration test, and subsequent tests or operations can continue. Mark the calibration anchor check passed in the test record, including the time of the check, operator and other information.

[0091] S403: Mark the calibration anchor point of the wireless standard that fails the calibration as 0.

[0092] The calibration anchor point is marked as 0, indicating a calibration problem. At this time, the error information should be recorded and the relevant personnel should be notified for inspection or repair. Until the problem is resolved, stop subsequent tests or operations to avoid introducing more uncertainties or damaging the equipment.

[0093] In this embodiment, different register values ​​are marked, and the values ​​that pass the calibration are marked as 1, and the values ​​that fail the calibration are marked as 0, so as to facilitate rapid identification of which standards have been verified and meet the requirements and which standards need further debugging or correction, thereby improving the efficiency of calibration and simplifying the operation process.

[0094] See also Figure 5 The present application provides an embodiment of a wireless standard calibration device for a POS terminal, comprising:

[0095] The calibration unit 501 is used to calibrate the wireless standards supported by the POS terminal in a shutdown state, wherein different wireless standards have different calibration anchor points;

[0096] Optionally, the calibration unit 501 is further configured to enter a calibration mode in response to a pressing operation of a preset combination key of the POS terminal;

[0097] In the calibration mode, the response calibration tool performs a calibration operation for the wireless format supported by the POS terminal.

[0098] Optionally, an initialization unit 502 is further included, which is used to initialize the register value of the calibration anchor point of each wireless standard.

[0099] The marking unit 503 is used to mark the calibration anchor point of the wireless system that has passed the calibration through the first register value, and mark the calibration anchor point of the wireless system that has not passed the calibration through the second register value during the calibration process;

[0100] Optionally, the marking unit 503 is further used to mark the calibration anchor point of the wireless system that has passed the calibration as 1;

[0101] The calibration anchor point of the wireless system that fails the calibration is marked as 0.

[0102] A reading unit 504, used to read register values ​​of all calibration anchor points of the POS terminal in a powered-on state;

[0103] The judging unit 505 is configured to determine that the calibration is successful if the register values ​​of all the calibration anchor points of the POS terminal are the first register values, and that the calibration is successful otherwise.

[0104] Optionally, a determining unit 506 is further included, configured to determine a calibration anchor point whose register value is the second register value as an abnormal calibration anchor point;

[0105] Generate and display information of the abnormal wireless standard corresponding to the abnormal calibration anchor point;

[0106] In the off state, recalibrate for the wireless standard supported by the POS terminal.

[0107] Optionally, an exit unit 507 is further included, which is used to exit the calibration mode after the calibration is completed.

[0108] See also Figure 6 The present application also provides a wireless standard calibration device for a POS terminal, comprising:

[0109] Processor 601, memory 602, input and output unit 603, bus 604;

[0110] The processor 601 is connected to the memory 602, the input and output unit 603 and the bus 604;

[0111] The memory 602 stores a program, and the processor 601 calls the program to execute any of the above methods.

[0112] The present application also relates to a computer-readable storage medium, on which a program is stored. When the program is run on a computer, the computer executes any of the above methods.

[0113] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0114] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0115] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0116] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0117] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, read-only memory), random access memory (RAM, random access memory), disk or optical disk and other media that can store program code.

Claims

1. A wireless standard calibration method for a POS terminal, characterized in that: The method comprises: In the off state, calibration is performed for the wireless standards supported by the POS terminal, wherein different wireless standards have different calibration anchor points; During the calibration process, the calibration anchor point of the wireless system that has passed the calibration is marked by the first register value, and the calibration anchor point of the wireless system that has not passed the calibration is marked by the second register value; In a powered-on state, reading register values ​​of all calibration anchor points of the POS terminal; If the register values ​​of all the calibration anchor points of the POS terminal are the first register values, the calibration is passed; otherwise, the calibration is failed.

2. The method according to claim 1, characterized in that After the calibration fails, the method further comprises: Determine a calibration anchor point whose register value is the second register value as an abnormal calibration anchor point; Generate and display information about the abnormal wireless standard corresponding to the abnormal calibration anchor point.

3. The method according to claim 1, characterized in that After the calibration fails, the method further comprises: In the off state, recalibrate for the wireless standard supported by the POS terminal.

4. The method according to claim 2, characterized in that: The calibrating the wireless standard supported by the POS terminal includes: In response to pressing a preset key combination of the POS terminal, entering a calibration mode; In the calibration mode, the response calibration tool performs a calibration operation for the wireless format supported by the POS terminal.

5. The method according to claim 4, characterized in that The method further comprises: After calibration is complete, exit the calibration mode.

6. The method according to any one of claims 1 to 5, characterized in that: Before marking the calibration anchor point of the wireless system that has passed the calibration by the first register value, and marking the calibration anchor point of the wireless system that has failed the calibration by the second register value, the method further includes: Initialize register values ​​of calibration anchor points of each of the wireless standards.

7. The method according to any one of claims 1 to 5, characterized in that: The method of marking the calibration anchor point of the wireless standard that has passed the calibration by the first register value, and marking the calibration anchor point of the wireless standard that has failed the calibration by the second register value, comprises: Mark the calibration anchor point of the wireless system that has passed the calibration as 1; The calibration anchor point of the wireless system that fails the calibration is marked as 0.

8. A wireless standard calibration device for a POS terminal, characterized in that: The wireless standard calibration device of the POS terminal comprises: A calibration unit, used for calibrating the wireless standards supported by the POS terminal in a powered-off state, wherein different wireless standards have different calibration anchor points; A marking unit, used to mark the calibration anchor point of the wireless system that has passed the calibration through the first register value, and mark the calibration anchor point of the wireless system that has not passed the calibration through the second register value during the calibration process; A reading unit, used for reading register values ​​of all calibration anchor points of the POS terminal in a powered-on state; The judgment unit is configured to determine that the calibration is successful if the register values ​​of all the calibration anchor points of the POS terminal are the first register values, and that the calibration is unsuccessful otherwise.

9. A wireless standard calibration device for a POS terminal, characterized in that: The device comprises: Processor, memory, input-output unit, and bus; The processor is connected to the memory, the input and output unit, and the bus; The memory stores a program, and the processor calls the program to execute the wireless system calibration method according to any one of claims 1 to 7.

10. A computer-readable storage medium, wherein a program is stored on the computer-readable storage medium, and when the program is executed on a computer, the wireless system calibration method according to any one of claims 1 to 7 is executed.

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