Method and system for quickly calibrating line loss of WIFI (Wireless Fidelity) module
By configuring and shielding the processing of WIFI standard parts and communicating with the RF test instrument, the terminal controls the transmission of preset RF signals to read the real-time power value, and realizes rapid calibration of the WIFI module line loss value, solving the problem of low efficiency in the prior art, improving calibration efficiency and simplifying the process.
Patent Information
- Application Number
- CN202411474608.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-03-07
AI Technical Summary
In the prior art, RF performance calibration of WIFI modules requires the operator to manually operate the instruments and software, which is inefficient and cannot be operated simultaneously in batches.
By configuring the WIFI standard parts, after masking, they communicate and connect with the RF test instrument. The terminal controls the WIFI standard parts to transmit preset RF signals. The RF test instrument reads the signal and outputs real-time power values. The terminal analyzes and processes them to output the line loss value.
It realizes rapid calibration of WIFI module line loss value, improves calibration efficiency, simplifies the calibration process, and can complete large-scale frequency point line loss calibration.
Smart Images
Figure CN119584180A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of wireless testing technology, and in particular to a method and system for quickly calibrating line loss of a WIFI module. Background Art
[0002] At present, in the production and manufacturing of WIFI modules, it is necessary to test the line loss value of the module performance. The detection of line loss value is related to the RF performance of the WIFI module. The accuracy of RF performance affects the performance of the WIFI module in the terminal device.
[0003] In the related art, the test of RF performance of WIFI module requires a power transmitter, a radio frequency test instrument, and intermediate software. The power transmitter is first set to a rated power, and transmits a known power P1. The radio frequency test instrument receives the signal with a receiving power of P2. The line loss value P (Loss) = P1-P2 is analyzed by the intermediate software. This method can calibrate the line loss value of each frequency point. However, each calibration of line loss requires the operator to operate the instrument and software, and batch operations cannot be performed at the same time, which is inefficient. Summary of the invention
[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a method and system for quickly calibrating line loss of a WIFI module, which can improve the efficiency of line loss calibration and simplify the calibration process.
[0005] The objective of the present invention is achieved through the following technical solutions:
[0006] The first aspect of the present application provides a method for quickly calibrating line loss of a WIFI module, comprising: configuring a WIFI standard component, shielding the WIFI standard component, and then communicating with a radio frequency test instrument; controlling the WIFI standard component to transmit a preset radio frequency signal to the radio frequency test instrument through a terminal; the radio frequency test instrument reads the preset radio frequency signal, outputs a real-time power value, and sends the real-time power value to the terminal; the terminal performs analysis and processing according to the real-time power value, and outputs a line loss value.
[0007] The configuring of the WIFI standard component includes: writing a preset power value into a WIFI module to form the WIFI standard component.
[0008] After the WIFI standard component is shielded, it is communicatively connected with a radio frequency test instrument, including: placing the WIFI standard component in a shielding box, and communicating with the radio frequency test instrument through a radio frequency line.
[0009] The terminal performs analysis and processing according to the real-time power value and outputs a line loss value, including: the terminal calculates the real-time power value and the preset power value through a preset function and outputs the line loss value.
[0010] After the terminal performs analysis and processing according to the real-time power value and outputs the line loss value, the terminal generates a stop transmission instruction to drive the WIFI standard component to stop transmitting the preset radio frequency signal.
[0011] The second aspect of the present application provides a system for quickly calibrating line loss of a WIFI module, comprising: 6. A system for quickly calibrating line loss of a WIFI module, characterized in that it comprises: a configuration module, used to configure WIFI standard parts, shield the WIFI standard parts, and then communicate with the RF test instrument; a transmitting module, used to control the WIFI standard parts to transmit a preset RF signal to the RF test instrument through a terminal; a reading module, used to read the preset RF signal, output a real-time power value, and send the real-time power value to the terminal; a calculation module, used to analyze and process according to the real-time power value, and output a line loss value.
[0012] The configuration module is also used to write a preset power value into the WIFI module to form the WIFI standard component.
[0013] The configuration module is also used to place the WIFI standard component into a shielding box and communicate with the radio frequency testing instrument via a radio frequency line.
[0014] The calculation module is also used to calculate the real-time power value and the preset power value through a preset function, and output the line loss value.
[0015] It also includes an output module, which is used to generate a stop transmission instruction to drive the WIFI standard component to stop transmitting the preset radio frequency signal.
[0016] Compared with the prior art, the present invention has at least the following advantages:
[0017] By using the configured WIFI standard parts, after shielding, simulating the actual use environment of the WIFI module, and then transmitting the preset RF signal to achieve the purpose of obtaining the line loss value. In the above method, only the power of the preset RF signal transmitted by the WIFI standard parts is adjusted to complete the line loss adjustment of the WIFI module, so that the shielding box can complete the large-scale frequency point line loss calibration, and the efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below.
[0019] Figure 1 A method flow chart of a method for quickly calibrating line loss of a WIFI module in one embodiment of the present invention;
[0020] Figure 2 A method flow chart of another implementation of the method for quickly calibrating line loss of a WIFI module in one embodiment of the present invention;
[0021] Figure 3 This is a functional module diagram of a system for quickly calibrating line loss of a WIFI module in an embodiment of the present invention. DETAILED DESCRIPTION
[0022] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.
[0023] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.
[0024] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0025] The test of RF performance of WIFI module requires a power transmitter, a radio frequency test instrument, and middleware. The power transmitter is first set to a rated power, and transmits a known power P1. The radio frequency test instrument receives the signal with a receiving power of P2. The middleware analyzes the line loss value P (Loss) = P1-P2. This method can calibrate the line loss value of each frequency point. However, each calibration of line loss requires the operator to operate the instrument and software, and batch operations cannot be performed at the same time, which is inefficient.
[0026] In view of the above problems, the embodiments of the present application provide a method and system for quickly calibrating line loss of a WIFI module, which can improve the efficiency of line loss calibration and simplify the calibration process.
[0027] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.
[0028] Figure 1 It is a flow chart of a method for quickly calibrating line loss of a WIFI module shown in an embodiment of the present application.
[0029] See also Figure 1 A method for quickly calibrating line loss of a WIFI module includes: step S101, configuring a WIFI standard component, shielding the WIFI standard component, and then communicating with a radio frequency test instrument.
[0030] It should be noted that multiple WIFI modules that have not been RF tested are manually tested and calibrated for the RF reference power value in a laboratory environment by using QA software and RF test instruments. The parameters are continuously adjusted during the manual calibration process until the normal parameters emit the reference power value and the normal parameters are written into the module to form a WIFI standard part. Each WIFI standard part can emit a fixed power at each frequency point. Furthermore, the WIFI standard part is shielded, and the shielding treatment here simulates the application environment of the real WIFI module. Then the WIFI standard part will communicate with the RF test instrument.
[0031] Step S102: Control the WIFI standard component through the terminal to transmit a preset radio frequency signal to the radio frequency test instrument.
[0032] Step S103: The radio frequency test instrument reads a preset radio frequency signal, outputs a real-time power value, and sends the real-time power value to the terminal.
[0033] It should be noted that the terminal communicates with the RF test instrument through a network cable, and the WIFI standard component is connected to the terminal through an adapter board. Furthermore, the terminal controls the WIFI standard component to transmit a preset RF signal to the RF test instrument, and the RF test instrument reads the preset RF signal, outputs a real-time power value, and sends the real-time power value to the terminal. Among them, the real-time power value here will be different from the power value of the preset RF signal, that is, attenuation occurs.
[0034] Step S104: The terminal performs analysis and processing based on the real-time power value and outputs a line loss value.
[0035] It should be noted that the terminal performs analysis and processing based on the real-time power value to calculate the line loss value, thereby determining the line loss of all WIFI modules under the environment and at the corresponding frequency point.
[0036] Figure 2 for Figure 1 A more detailed implementation of a method for quickly calibrating line loss of a WIFI module, a method for quickly calibrating line loss of a WIFI module, comprising:
[0037] Step S201, writing a preset power value into the WIFI module to form a WIFI standard component;
[0038] Put the WIFI standard parts into the shielding box and connect them to the RF test instrument through the RF line.
[0039] It should be noted that multiple WIFI modules that have not been RF tested are manually tested and calibrated for the RF reference power value in a laboratory environment by using QA software and RF test instruments. The parameters are continuously adjusted during the manual calibration process until the normal parameters send out the reference power value and the normal parameters are written into the module to form a WIFI standard part. Then the WIFI standard part is placed in a shielding box, and the RF test instrument is connected to the shielding box through an RF line. Furthermore, the frequency point table that needs to be calibrated for line loss is configured, such as configuring calibration 2412, 2422, and 2427. Then close the shielding box.
[0040] Step S202: Control the WIFI standard component through the terminal to transmit a preset radio frequency signal to the radio frequency test instrument.
[0041] Step S203: The radio frequency test instrument reads a preset radio frequency signal, outputs a real-time power value, and sends the real-time power value to the terminal.
[0042] The description here can refer to step S102 and step S103, which will not be described in detail here.
[0043] Step S204: The terminal calculates the real-time power value and the preset power value through a preset function, and outputs a line loss value.
[0044] It should be noted that the preset function here refers to P(Loss)=P1-P2, where P1 is the preset power value, P2 is the real-time power value, and P(Loss) is the line loss value. In this way, the line loss value at the corresponding frequency point can be calculated through the preset function.
[0045] Step S205: The terminal generates a stop transmission instruction to drive the WIFI standard component to stop transmitting the preset radio frequency signal.
[0046] It should be noted that, in order to ensure the accuracy of the line loss value calculation, after the preset function calculates the line loss value, the terminal generates a stop transmission instruction to drive the WIFI standard component to stop transmitting the preset RF signal.
[0047] By using the above method, after shielding treatment, the actual use environment of the WIFI module is simulated by using the configured WIFI standard parts, and then the preset RF signal is transmitted to achieve the purpose of obtaining the line loss value. By using the above method, the line loss adjustment of the WIFI module can be completed by simply adjusting the power of the preset RF signal transmitted by the WIFI standard parts, so that the shielding box can be calibrated for a large number of frequency points, and the efficiency is greatly improved.
[0048] The second aspect of the present application provides a system for quickly calibrating line loss of a WIFI module, including: a configuration module 100, a transmitting module 200, a reading module 300 and a calculation module 400, wherein the configuration module 100 is used to configure WIFI standard parts, shield the WIFI standard parts, and then communicate with the RF test instrument; the transmitting module 200 is used to control the WIFI standard parts to transmit a preset RF signal to the RF test instrument through a terminal; the reading module 300 is used to read the preset RF signal, output a real-time power value, and send the real-time power value to the terminal; the calculation module 400 is used to analyze and process according to the real-time power value and output a line loss value.
[0049] It should be noted that the reading module 300 and the calculating module 400 are part of a terminal, and the terminal may be an intelligent terminal such as a PC.
[0050] See also Figure 3 In one embodiment, the configuration module 100 is also used to write a preset power value into the WIFI module to form a WIFI standard component.
[0051] See also Figure 3 In one embodiment, the configuration module 100 is also used to place the WIFI standard component into a shielding box and communicate with the RF test instrument via a RF line.
[0052] See also Figure 3 In one embodiment, the calculation module 400 is further used to calculate the real-time power value and the preset power value through a preset function and output a line loss value.
[0053] In one embodiment, a system for quickly calibrating line loss of a WIFI module further includes an output module, and the output module is used to generate a stop transmission instruction to drive the WIFI standard component to stop transmitting a preset radio frequency signal.
[0054] Regarding the system in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated again here.
[0055] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the various embodiments have their own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.
[0056] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.
Claims
1. A method for quickly calibrating line loss of a WIFI module, characterized in that: include: Configure WIFI standard parts, shield the WIFI standard parts, and then connect them to the radio frequency test instrument; Control the WIFI standard component to transmit a preset radio frequency signal to the radio frequency test instrument through the terminal; The radio frequency test instrument reads the preset radio frequency signal, outputs a real-time power value, and sends the real-time power value to the terminal; The terminal performs analysis and processing according to the real-time power value and outputs a line loss value.
2. The method for quickly calibrating line loss of a WIFI module according to claim 1, characterized in that: The configuration of WIFI standard parts includes: The preset power value is written into the WIFI module to form the WIFI standard component.
3. The method for quickly calibrating line loss of a WIFI module according to claim 1, characterized in that: After the WIFI standard component is shielded, it is connected to the radio frequency test instrument for communication, including: The WIFI standard component is placed in a shielding box and is connected to the radio frequency test instrument through a radio frequency line.
4. The method for quickly calibrating line loss of a WIFI module according to claim 2, characterized in that: The terminal performs analysis and processing according to the real-time power value and outputs a line loss value, including: The terminal calculates the real-time power value and the preset power value through a preset function, and outputs the line loss value.
5. The method for quickly calibrating line loss of a WIFI module according to claim 1, characterized in that: After the terminal performs analysis and processing according to the real-time power value and outputs the line loss value, it includes: The terminal generates a stop transmission instruction to drive the WIFI standard component to stop transmitting the preset radio frequency signal.
6. A system for quickly calibrating line loss of a WIFI module, characterized in that: include: A configuration module is used to configure the WIFI standard parts, shield the WIFI standard parts, and then communicate with the radio frequency test instrument; A transmitting module, used for controlling the WIFI standard component to transmit a preset radio frequency signal to the radio frequency test instrument through a terminal; A reading module, used for reading the preset radio frequency signal, outputting a real-time power value, and sending the real-time power value to the terminal; The calculation module is used to perform analysis and processing according to the real-time power value and output a line loss value.
7. The system for quickly calibrating line loss of a WIFI module according to claim 5, characterized in that: The configuration module is also used to write a preset power value into the WIFI module to form the WIFI standard component.
8. The system for quickly calibrating line loss of a WIFI module according to claim 5, characterized in that: The configuration module is also used to place the WIFI standard component into a shielding box and communicate with the radio frequency testing instrument via a radio frequency line.
9. The system for quickly calibrating line loss of a WIFI module according to claim 7, characterized in that: The calculation module is also used to calculate the real-time power value and the preset power value through a preset function, and output the line loss value.
10. The system for quickly calibrating line loss of a WIFI module according to claim 5, characterized in that: It also includes an output module, which is used to generate a stop transmission instruction to drive the WIFI standard component to stop transmitting the preset radio frequency signal.