CN112350784A - WiFi module calibration method and device, storage medium and electronic equipment - Google Patents
WiFi module calibration method and device, storage medium and electronic equipment Download PDFInfo
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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Abstract
The embodiment of the application discloses a WiFi module calibration method, a WiFi module calibration device, a storage medium and electronic equipment, wherein the method comprises the following steps: the method comprises the steps of obtaining transmitted compiling parameters, inputting the compiling parameters when compiling a project, determining whether the project supports a radio frequency module or not based on the compiling parameters, and writing a crystal oscillator calibration value into a nonvolatile memory if the project does not support the radio frequency module. By adopting the embodiment of the application, when the fact that the item does not support the radio frequency module and cannot be calibrated by the radio frequency module and the crystal oscillator is calibrated is determined, the crystal oscillator calibration value is written into the nonvolatile memory, and the crystal oscillator can be calibrated, so that the problem that the crystal oscillator drifts greatly when the WiFi module is calibrated can be solved.
Description
Technical Field
The present disclosure relates to the field of electronic calibration technologies, and in particular, to a WiFi module calibration method, apparatus, storage medium, and electronic device.
Background
Many current smart items only need to support WBG (WiFi, BLE, and GPS) functions, and do not need to support communication functions, such as smart glasses items and tablet items that do not support SIM cards, and thus do not support radio frequency modules, but support WiFi modules.
In order to ensure that the crystal oscillator drift is prevented from being too large when the WiFi module is calibrated, the radio frequency module needs to be calibrated before the WiFi module is calibrated, and the calibration of the radio frequency module comprises the step of writing calibration values into a nonvolatile memory. Since the item does not support a radio frequency module, the problem of large crystal oscillator drift occurs when the WiFi module is calibrated.
Disclosure of Invention
The embodiment of the application provides a WiFi module calibration method, a WiFi module calibration device, a storage medium and electronic equipment, and the crystal oscillator calibration value can be written into a nonvolatile memory, so that the problem that the crystal oscillator drifts greatly during the calibration of the WiFi module can be solved. The technical scheme is as follows:
in a first aspect, an embodiment of the present application provides a WiFi module calibration method, where the method includes:
acquiring the transmitted compiling parameters, wherein the compiling parameters are input during the process of compiling the project;
determining whether the item supports a radio frequency module based on the compilation parameters;
and if the item does not support the radio frequency module, writing the crystal oscillator calibration value into a nonvolatile memory.
In a second aspect, an embodiment of the present application provides a WiFi module calibration apparatus, where the apparatus includes:
the parameter acquisition module is used for acquiring the transmitted compiling parameters, and the compiling parameters are input during the project compiling;
a radio frequency determination module to determine whether the item supports a radio frequency module based on the compilation parameters;
and the calibration value writing module is used for writing the crystal oscillator calibration value into the nonvolatile memory if the item does not support the radio frequency module.
In a third aspect, embodiments of the present application provide a computer storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the above-mentioned method steps.
In a fourth aspect, an embodiment of the present application provides an electronic device, which may include: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the above-mentioned method steps.
The beneficial effects brought by the technical scheme provided by some embodiments of the application at least comprise:
in one or more embodiments of the present application, the received compiling parameter is obtained, the compiling parameter is input when a project is compiled, whether the project supports a radio frequency module is determined based on the compiling parameter, and if the project does not support the radio frequency module, a crystal oscillator calibration value is written into a nonvolatile memory. When the radio frequency module calibration and the crystal oscillator calibration cannot be carried out due to the fact that the item does not support the radio frequency module, the crystal oscillator calibration value is written into the nonvolatile memory, the crystal oscillator calibration can be carried out, and therefore the problem that the crystal oscillator drifts greatly when the WiFi module is calibrated can be solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a WiFi module calibration method provided in an embodiment of the present application;
fig. 2 is a schematic flowchart of another WiFi module calibration method provided in the embodiments of the present application;
fig. 3 is a schematic structural diagram of a WiFi module calibration apparatus provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of another WiFi module calibration apparatus provided in this application;
fig. 5 is a schematic structural diagram of a calibration value writing module according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a radio frequency determination module according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present application, it is noted that, unless explicitly stated or limited otherwise, "including" and "having" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The present application will be described in detail with reference to specific examples.
In one embodiment, as shown in fig. 1, a WiFi module calibration method is proposed, which can be implemented by means of a computer program and can be run on a WiFi module calibration device based on von neumann architecture. The computer program may be integrated into the application or may run as a separate tool-like application.
Specifically, the WiFi module calibration method includes:
s101: the method includes obtaining incoming compilation parameters that are input when compiling the project.
The compiling parameter refers to a parameter obtained by compiling the script of the project through a modem. The script is an executable file written according to a certain format, is used to control a software application, is usually written and stored in a text such as American Standard Code for Information exchange (ASCII), and is compiled when called.
The item refers to an item which supports a WiFi module but not a radio frequency module, for example, a smart glasses item which does not support a SIM card.
Specifically, the process of obtaining the imported compilation parameters: and inputting a script corresponding to the compiling parameter on the basis of the original script of the project. And when the WiFi module is calibrated, compiling the script corresponding to the compiling parameter through a modem so as to obtain the compiling parameter.
S102: determining whether the item supports a radio frequency module based on the compilation parameter.
The compilation parameter is an attribute parameter of the item as to whether a radio frequency module is supported.
Specifically, the method for determining whether the item supports the radio frequency module includes: judging whether the compiling parameter is a designated parameter, if so, determining that the project does not support the radio frequency module, and if not, determining that the project supports the radio frequency module. The specified parameter may be "gpss", and if the compiling parameter is "gpss", it is determined that the item does not support the radio frequency module, and if the compiling parameter is not "gpss", it is determined that the item supports the radio frequency module.
S103: and if the item does not support the radio frequency module, writing the crystal oscillator calibration value into a nonvolatile memory.
The crystal oscillator is a slice cut from a quartz crystal according to a certain azimuth angle, silver layer lead-out electrodes are coated on two corresponding surfaces of the slice to an Integrated Circuit (IC), and the two corresponding surfaces are packaged by a metal shell or a glass shell, so that an oscillating Circuit, namely a crystal oscillator, is obtained. Among them, quartz crystal is a piezoelectric device that can convert electric energy and mechanical energy into each other. The integrated circuit includes an amplifier for providing energy to keep the crystal oscillating and a feedback circuit for determining the oscillation frequency. An alternating current signal with high stable frequency can be generated by the crystal oscillator, and the larger drift of the crystal oscillator indicates that the frequency of the alternating current signal is larger. Therefore, the crystal oscillator needs to be calibrated.
The crystal oscillator calibration value is a calibration value obtained by calibrating the crystal oscillator during the calibration of the radio frequency module. When the item does not support the radio frequency module, the crystal oscillator is not calibrated, so that the crystal oscillator calibration value is written into the nonvolatile memory to avoid the problem of large crystal oscillator drift.
The non-volatile memory (NVM) can still store data after power is turned off. The non-volatile memory includes, but is not limited to, any one of a read-only memory (ROM), a programmable read-only memory (PROM), an electrically alterable read-only memory (EAROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), and a flash memory (flash memory).
The method for writing the crystal oscillator calibration value into the nonvolatile memory comprises the following steps: adding a non-volatile memory write script into the compiling script corresponding to the item, and writing the crystal oscillator calibration value into a modem software configuration (MBN) corresponding to the script when the compiling parameter is not a specified parameter. The crystal oscillator calibration value is an arbitrary value, and is determined by the non-volatile memory write script, for example, NV 4212-10 is written in defaultMBN.
In the embodiment of the application, the transmitted compiling parameters are obtained, the compiling parameters are input during item compiling, whether the item supports the radio frequency module or not is determined based on the compiling parameters, and if the item does not support the radio frequency module, the crystal oscillator calibration value is written into the nonvolatile memory. When the radio frequency module calibration and the crystal oscillator calibration cannot be carried out due to the fact that the item does not support the radio frequency module, the crystal oscillator calibration value is written into the nonvolatile memory, the crystal oscillator calibration can be carried out, and therefore the problem that the crystal oscillator drifts greatly when the WiFi module is calibrated can be solved.
Referring to fig. 2, fig. 2 is a schematic flowchart illustrating another embodiment of a WiFi module calibration method provided in the present application. Specifically, the method comprises the following steps:
s201: the method includes obtaining incoming compilation parameters that are input when compiling the project.
See S101 for details, which are not described herein.
S202: determining whether the item supports a radio frequency module based on the compilation parameter.
See S102 for details, which are not described herein.
S203: and if the item does not support the radio frequency module, writing the crystal oscillator calibration value into a nonvolatile memory.
See S103 specifically, and the details are not repeated here.
S204: and if the item supports the radio frequency module, calibrating the radio frequency module, and writing the crystal oscillator calibration value into the nonvolatile memory.
And when the item supports the radio frequency module according to the compiling parameters, calibrating the radio frequency module.
Specifically, because the hardware deviation between the module components causes the deviation of the rf receiving and transmitting parameters, the calibration parameters of the rf module mainly include: receive level, transmit power, and frequency error. The basic principle of the radio frequency calibration is as follows: and compensating the radio frequency parameter deviation caused by the hardware deviation by adjusting the software parameter.
Wherein, the radio frequency module calibration comprises crystal oscillator calibration. Specifically, the calibration of the crystal oscillator includes: and calibrating the signal frequency error under the room temperature environment and calibrating the signal frequency error relative to the ambient temperature change. The signal frequency calibration in a room temperature environment is to reduce a nominal error of a signal frequency through a capacitor array inside a Power Management IC (PMIC) to obtain a calibration value, that is, an XO trim value, and write the calibration value into a nonvolatile memory. The calibration of the signal frequency relative to the environmental temperature change means that the change of the signal frequency is measured according to the changed environmental temperature, so that a characteristic curve of the signal frequency relative to the environmental temperature change is obtained, and the crystal oscillator calibration is carried out.
S205: and carrying out WiFi module calibration.
And after writing the crystal oscillator calibration value into the nonvolatile memory, carrying out WiFi module calibration. Key calibration parameters for WiFi modules are: frequency offset, transmit power, and received signal strength, wherein:
the frequency offset refers to the deviation of the center frequency on the receive channel and the transmit channel. When the center frequency of the receiving channel in the WiFi module is not accurate, the received signal cannot be correctly identified and demodulated, so that the frequency offset needs to be calibrated, and the center frequencies of the receiving channel and the transmitting channel are linearly designed, so that the frequency calibration can be performed on only one channel.
The transmission power refers to the power of a transmission signal, and when the transmission power is small, the corresponding communication quality is deteriorated, thereby affecting the use of a user, and when the transmission power is large, the user capacity of the system is reduced, thereby affecting the communication of other users, and therefore, the transmission power needs to be calibrated, and the calibration of the transmission power includes the calibration of power output linearity and the calibration of output power and frequency response. The power output linear calibration refers to calibration from high power to low power on a designated channel so as to ensure that the WiFi module can accurately output each power required by the system, and further, the nonlinearity of the transmitting power is calibrated. The calibration of the output power and the frequency response is to perform corresponding frequency compensation on the frequency output on at least three channels, namely a high frequency channel, a medium frequency channel and a low frequency channel.
The strength of the received signal ensures communication quality and handoff while implementing dynamic frequency selection or system power control functions. The intensity of the received signal is calibrated by adding an Automatic Gain Control (AGC) circuit, and the amplification factor of the AGC circuit works in a linear relation with the intensity of the received signal, so that the amplification factor of the AGC circuit is calibrated, and the intensity of the received signal is calibrated.
In the embodiment of the application, if the item supports the radio frequency module, the radio frequency module is calibrated, the crystal oscillator calibration value is written into the nonvolatile memory, and finally the WiFi module is checked. The radio frequency module may be calibrated when it is determined that the item supports the radio frequency module. The radio frequency module calibration comprises crystal oscillator calibration and the crystal oscillator calibration value is written into the nonvolatile memory, so that the problem that the crystal oscillator drifts greatly when the WiFi module is calibrated can be solved. In addition, after the problem of large crystal oscillator drift is solved, WiFi calibration is carried out, so that the WiFi module can accurately receive and transmit WiFi signals.
The following are embodiments of the apparatus of the present application that may be used to perform embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.
Please refer to fig. 3, which shows a schematic structural diagram of a WiFi module calibration apparatus according to an exemplary embodiment of the present application. The WiFi module calibration apparatus may be implemented as all or part of the apparatus by software, hardware or a combination of both. The device 1 comprises a parameter acquisition module 11, a radio frequency determination module 12 and a calibration value writing module 13.
A parameter obtaining module 11, configured to obtain an incoming compiling parameter, where the compiling parameter is input during the project compiling;
a radio frequency determination module 12 for determining whether the item supports a radio frequency module based on the compiling parameter;
and a calibration value writing module 13, configured to write the crystal calibration value into the nonvolatile memory if the item does not support the radio frequency module.
Optionally, as shown in fig. 4, the apparatus 1 further includes:
and the radio frequency calibration module 14 is configured to perform radio frequency module calibration if the item supports a radio frequency module, and write the crystal oscillator calibration value into the nonvolatile memory.
And the Wifi calibration module 15 is used for calibrating the WiFi module.
Optionally, as shown in fig. 5, the calibration value writing module 13 includes:
a script adding unit 131, configured to add a non-volatile memory write script to the compiling script corresponding to the item, and write the crystal oscillator calibration value in the modem software configuration corresponding to the script.
Optionally, as shown in fig. 6, the radio frequency determining module 12 includes:
a parameter determining unit 121, configured to determine whether the compiling parameter is a specified parameter;
a radio frequency supporting unit 122, configured to determine that the item does not support a radio frequency module if the compiling parameter is a specified parameter;
a radio frequency not supporting unit 123, configured to determine that the item supports the radio frequency module if the compiling parameter is not a specified parameter.
It should be noted that, when the WiFi module calibration apparatus provided in the foregoing embodiment executes the WiFi module calibration method, only the division of the functional modules is illustrated, and in practical applications, the functions may be distributed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the WiFi module calibration apparatus provided in the foregoing embodiment and the WiFi module calibration method embodiment belong to the same concept, and details of implementation processes thereof are referred to in the method embodiment, and are not described herein again.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
In this embodiment, the imported compiling parameters are acquired, the compiling parameters are input when compiling the project, whether the project supports the radio frequency module is determined based on the compiling parameters, and if the project does not support the radio frequency module, the crystal oscillator calibration value is written into the nonvolatile memory. When the radio frequency module calibration and the crystal oscillator calibration cannot be carried out due to the fact that the item does not support the radio frequency module, the crystal oscillator calibration value is written into the nonvolatile memory, the crystal oscillator calibration can be carried out, and therefore the problem that the crystal oscillator drifts greatly when the WiFi module is calibrated can be solved.
An embodiment of the present application further provides a computer storage medium, where the computer storage medium may store a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the WiFi module calibration method according to the embodiments shown in fig. 1 to fig. 3, and a specific execution process may refer to specific descriptions of the embodiments shown in fig. 1 to fig. 3, which is not described herein again.
The present application further provides a computer program product, where at least one instruction is stored in the computer program product, and the at least one instruction is loaded by the processor and executed by the WiFi module calibration method according to the embodiment shown in fig. 1 to fig. 3, where a specific execution process may refer to specific descriptions of the embodiment shown in fig. 1 to fig. 3, and is not described herein again.
Fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. As shown in fig. 7, the electronic device 1000 may include: at least one processor 1001, at least one network interface 1004, a user interface 1003, memory 1005, at least one communication bus 1002.
Wherein a communication bus 1002 is used to enable connective communication between these components.
The user interface 1003 may include a Display screen (Display) and a Camera (Camera), and the optional user interface 1003 may also include a standard wired interface and a wireless interface.
The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface), among others.
The Memory 1005 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 1005 includes a non-transitory computer-readable medium. The memory 1005 may be used to store an instruction, a program, code, a set of codes, or a set of instructions. The memory 1005 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the various method embodiments described above, and the like; the storage data area may store data and the like referred to in the above respective method embodiments. The memory 1005 may optionally be at least one memory device located remotely from the processor 1001. As shown in fig. 7, a memory 1005, which is one type of computer storage medium, may include an operating system, a network communication module, a user interface module, and a WiFi module calibration application.
In the electronic device 1000 shown in fig. 7, the user interface 1003 is mainly used as an interface for providing input for a user, and acquiring data input by the user; and the processor 1001 may be configured to invoke the WiFi module calibration application stored in the memory 1005, and specifically perform the following operations:
acquiring the transmitted compiling parameters, wherein the compiling parameters are input during the process of compiling the project;
determining whether the item supports a radio frequency module based on the compilation parameters;
and if the item does not support the radio frequency module, writing the crystal oscillator calibration value into a nonvolatile memory.
In one embodiment, the processor 1001, after performing the determining whether the item supports a radio frequency module based on the compiling parameter, further performs the following:
and if the item supports the radio frequency module, calibrating the radio frequency module, and writing the crystal oscillator calibration value into the nonvolatile memory.
In one embodiment, the processor 1001, after performing the writing of the crystal calibration values into the non-volatile memory, further performs the following:
and carrying out WiFi module calibration.
In one embodiment, the processor 1001, when executing the writing of the crystal calibration value into the non-volatile memory, specifically executes the following operations:
adding a nonvolatile memory write-in script into the compiling script corresponding to the project, and writing the crystal oscillator calibration value into the modem software configuration corresponding to the script.
In one embodiment, the processor 1001, when executing the determining whether the item supports the radio frequency module based on the compiling parameter, specifically performs the following operations:
judging whether the compiling parameters are specified parameters or not;
if the compiling parameter is a designated parameter, determining that the project does not support a radio frequency module;
and if the compiling parameter is not a specified parameter, determining that the item supports the radio frequency module.
In this embodiment, the imported compiling parameters are acquired, the compiling parameters are input when compiling the project, whether the project supports the radio frequency module is determined based on the compiling parameters, and if the project does not support the radio frequency module, the crystal oscillator calibration value is written into the nonvolatile memory. When the radio frequency module calibration and the crystal oscillator calibration cannot be carried out due to the fact that the item does not support the radio frequency module, the crystal oscillator calibration value is written into the nonvolatile memory, the crystal oscillator calibration can be carried out, and therefore the problem that the crystal oscillator drifts greatly when the WiFi module is calibrated can be solved.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a read-only memory or a random access memory.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present application and is not to be construed as limiting the scope of the present application, so that the present application is not limited thereto, and all equivalent variations and modifications can be made to the present application.
Claims (10)
1. A WiFi module calibration method, comprising:
acquiring the transmitted compiling parameters, wherein the compiling parameters are input during the process of compiling the project;
determining whether the item supports a radio frequency module based on the compilation parameters;
and if the item does not support the radio frequency module, writing the crystal oscillator calibration value into a nonvolatile memory.
2. The method of claim 1, wherein after determining whether the item supports a radio frequency module based on the compiling parameter, further comprising:
and if the item supports the radio frequency module, calibrating the radio frequency module, and writing the crystal oscillator calibration value into the nonvolatile memory.
3. The method of claim 1, wherein after writing the crystal calibration value to the non-volatile memory, further comprising:
and carrying out WiFi module calibration.
4. The method of claim 1, wherein writing the crystal calibration value to a non-volatile memory comprises:
adding a nonvolatile memory write-in script into the compiling script corresponding to the project, and writing the crystal oscillator calibration value into the modem software configuration corresponding to the script.
5. The method of claim 1, wherein said determining whether the item supports a radio frequency module based on the compilation parameter comprises:
judging whether the compiling parameters are specified parameters or not;
if the compiling parameter is a designated parameter, determining that the project does not support a radio frequency module;
and if the compiling parameter is not a specified parameter, determining that the item supports the radio frequency module.
6. A WiFi module apparatus, comprising:
the parameter acquisition module is used for acquiring the transmitted compiling parameters, and the compiling parameters are input during the project compiling;
a radio frequency determination module to determine whether the item supports a radio frequency module based on the compilation parameters;
and the calibration value writing module is used for writing the crystal oscillator calibration value into the nonvolatile memory if the item does not support the radio frequency module.
7. The apparatus of claim 6, further comprising:
and the radio frequency calibration module is used for calibrating the radio frequency module if the item supports the radio frequency module and writing the crystal oscillator calibration value into the nonvolatile memory.
8. The apparatus of claim 6, further comprising:
and the Wifi calibration module is used for calibrating the WiFi module.
9. A computer storage medium, characterized in that it stores a plurality of instructions adapted to be loaded by a processor and to perform the method steps according to any of claims 1 to 5.
10. An electronic device, comprising: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the method steps of any of claims 1 to 5.
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