Radio frequency calibration method, storage medium, computer equipment and production line calibration device

Abstract

The invention discloses a radio frequency calibration method, a storage medium, computer equipment and a production line calibration device. The radio frequency calibration method comprises the following steps: acquiring each original frequency band under each signal transmission system supported by the terminal equipment; on the basis of the mapping relation of the original frequency bands under the absolute frequency, combining the original frequency bands meeting a preset condition to generate a new sub-frequency band; obtaining a preset number of absolute frequency points from the sub-frequency bands, and performing calibration comprehensive measurement on the sub-frequency bands based on the absolute frequency points to obtain calibration data; generating original calibration data corresponding to the original calibration frequency points of the original frequency bands based on the calibration data and the mapping relation between the absolute frequency points and the corresponding original frequency bands; and storing the original calibration data in a storage area associated with the original frequency band in the terminal device. Through the above mode, the overall efficiency of calibration can be improved, the tedious process of calibrating each original frequency band one by one is avoided, and time and resources are saved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a radio frequency calibration technology, a storage medium, a computer device, and a production line calibration device. Background Art

[0002] With the advancement of communication technology, especially starting from 4G LTE, the number of frequency bands supported by the 3GPP (3rd Generation Partnership Project) protocol has increased significantly and become more complex. Many communication products need to be used globally, which means that they must support many different frequency bands to adapt to the communication standards of different countries and regions. During the production process, in order to ensure that the performance of communication products meets the standards, the products need to be calibrated during the calibration and comprehensive testing phase. As the number of frequency bands increases, this process becomes time-consuming and complicated. Without affecting the number of frequency bands supported by the product, reducing the calibration and comprehensive testing time is the key to improving production efficiency and reducing costs. Existing calibration methods may have inefficiencies, especially when dealing with multi-mode and multi-frequency products, each frequency band needs to be calibrated separately in each mode, which leads to duplication of the calibration process and waste of time. Summary of the invention

[0003] The present application mainly provides a radio frequency calibration method, a storage medium, a computer device and a production line calibration device to solve the problems of repeated calibration process and low time efficiency.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a radio frequency calibration method, characterized in that it includes: obtaining each original frequency band under each signal transmission format supported by the terminal device; based on the mapping relationship of each original frequency band under the absolute frequency, merging each original frequency band that meets the preset conditions to generate a new sub-frequency band; obtaining a preset number of absolute frequency points from the sub-frequency band, and calibrating and measuring the sub-frequency band based on the absolute frequency points to obtain calibration data; based on the calibration data and the mapping relationship between the absolute frequency points and the corresponding original frequency bands, generating original calibration data corresponding to the original calibration frequency points of each original frequency band; storing the original calibration data in a storage area associated with the original frequency band in the terminal device.

[0005] The solution provided in the present application generates new sub-frequency bands by merging original frequency bands that meet preset conditions, and selects a preset number of absolute frequency points on these sub-frequency bands for calibration and comprehensive testing, which significantly reduces the number of calibration tests, thereby improving the overall efficiency of the calibration, avoiding the tedious process of calibrating each original frequency band one by one, and saving time and resources; by obtaining a preset number of absolute frequency points on the sub-frequency bands and performing calibration and comprehensive testing based on these frequency points, it can be ensured that the accuracy of the calibration meets the technical requirements; through mapping relationships and interpolation methods, the calibration data can be reused for other original frequency bands, reducing the need to calibrate each frequency band individually.

[0006] In some embodiments, based on the mapping relationship between the calibration data and the absolute frequency points and the corresponding original frequency bands, original calibration data corresponding to the original calibration frequency points of each original frequency band are generated, including: establishing a linear relationship between a preset number of absolute frequency points and the corresponding calibration data, and using an interpolation method to generate original calibration data corresponding to the original calibration frequency points of each original frequency band.

[0007] The solution provided in the present application makes the calibration data more complete and accurate by inferring the values ​​of unknown data points based on known data points, can ensure the accuracy and consistency of data within the calibration range, and can significantly reduce the number and time of experimental measurements.

[0008] In some embodiments, merging original frequency bands that meet preset conditions includes: merging original frequency bands that have overlapping areas in absolute frequency.

[0009] The solution provided in the present application combines frequency bands so that related signal processing equipment can be optimized for fewer frequency bands, thereby reducing processing complexity and cost.

[0010] In some embodiments, obtaining a preset number of absolute frequency points from a sub-frequency band includes: selecting a preset number of equally divided points on the sub-frequency band as absolute frequency points.

[0011] The solution provided in the present application helps to reduce the error of frequency allocation by equally dividing sub-frequency bands and selecting equally divided points as absolute frequency points, thereby simplifying the signal processing process.

[0012] In some embodiments, the original frequency band includes a transmit frequency band and a receive frequency band.

[0013] In some embodiments, the signal transmission standards include: GSM, CDMA, 3G, 4G and 5G.

[0014] In some embodiments, the calibration test includes AFC calibration, AGC calibration and APC calibration.

[0015] The solution provided in this application, the AFC, AGC and APC calibrations in the calibration comprehensive test work together on different links of the communication system, and comprehensively improve the performance, stability and user experience of the communication system by improving the accuracy of signal frequency, maintaining constant signal strength and accurately controlling the transmission power.

[0016] To solve the above technical problem, another technical solution adopted by the present application is to provide a storage medium having program data stored thereon, and the program data implements the steps of the above radio frequency calibration method when executed by a processor.

[0017] To solve the above technical problems, another technical solution adopted in the present application is: to provide a computer device, the computer device includes a processor and a memory connected to each other, the memory stores a computer program, and when the processor executes the computer program, the steps of the above-mentioned radio frequency calibration method are implemented.

[0018] In order to solve the above technical problems, another technical solution adopted by the present application is to provide a production line calibration device. The production line calibration device includes a terminal device to be calibrated, a comprehensive measuring instrument and a computer device as described above, the computer device is communicatively connected with the terminal device to be calibrated and the comprehensive measuring instrument, and the comprehensive measuring instrument is communicatively connected with the terminal device to be calibrated.

[0019] The beneficial effects of the present application are: Different from the prior art, the present application discloses a radio frequency calibration method, storage medium, computer equipment and production line calibration device. By merging the original frequency bands under the signal transmission formats supported by the terminal device according to preset conditions, the number of new sub-frequency bands generated is greatly reduced compared to the number of original frequency bands, so that the number of calibration comprehensive tests for new sub-frequency bands according to absolute frequency points is also relatively greatly reduced, and the time spent on comprehensive tests is also reduced. A preset number of absolute frequency points are obtained on the sub-frequency bands, and calibration comprehensive tests are performed based on these frequency points, which can ensure that the accuracy of the calibration meets the technical requirements; and then the interpolation method is implemented by computer means, so that the calibration data can be reused for other original frequency bands, reducing the need to calibrate each frequency band separately. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0021] Figure 1 It is a structural schematic diagram of an embodiment of a production line calibration device provided by the present application;

[0022] Figure 2 It is a flowchart of an embodiment of a radio frequency calibration method provided by the present application;

[0023] Figure 3 is a schematic diagram of the distribution of each original frequency band in an embodiment of an absolute frequency;

[0024] Figure 4 is a distribution diagram of each original frequency band in another embodiment at absolute frequency;

[0025] Figure 5 What is displayed is a statistical table of the number of calibration frequency points of a new scheme formed after the original frequency bands under each signal transmission system supported by a terminal device are merged;

[0026] Figure 6 It is a structural schematic diagram of an embodiment of the storage medium provided by the present application;

[0027] Figure 7 It is a structural schematic diagram of an embodiment of a computer device provided by the present application. DETAILED DESCRIPTION

[0028] 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 embodiments of 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.

[0029] The terms "first", "second", "third" in the embodiments of the present application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", "third" can expressly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0030] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] In the design and production process of wireless equipment, RF calibration is a crucial step. Before each terminal equipment (User Equipment, UE) leaves the factory, it must measure and calculate some parameters to obtain some parameter error data, and store these error data in a certain storage medium. During the normal use of the UE, the CPU (Central Processing Unit) will read these data and use certain algorithms to compensate for the parameters that need to be compensated. During the production test process, the process of measuring, calculating and storing the data that needs to be compensated and corrected in the storage medium is called calibration. There are a large number of analog devices in the RF circuit of the UE, and the analog devices have a large device discreteness. In order to ensure that the RF indicators of each terminal device meet the requirements of the industry standard (3GPP) and ensure the performance of each standard network, each UE must be RF calibrated.

[0032] See also Figure 1 , Figure 1 It is a structural schematic diagram of an embodiment of a production line calibration device provided in the present application.

[0033] The production line calibration device 100 includes a computer device 101, a terminal device 102 and a comprehensive measuring instrument 103. The comprehensive measuring instrument 103 is in communication connection with the terminal device 102 to be calibrated.

[0034] The computer device 101 is in communication connection with the terminal device 102 to be calibrated and the comprehensive measuring instrument 103 , and is used to execute the radio frequency calibration method of the production line calibration device 100 .

[0035] The terminal device 102 is a terminal device UE to be calibrated, which may be a mobile phone or tablet computer and other devices, and can be used for broadcast paging and RRC connection processing, switching and power control decision execution, processing wireless resource management and control information, and processing baseband and RF processing information.

[0036] The comprehensive test instrument 103 is a radio frequency and protocol performance test device for mobile communication terminals. It has test functions such as radio frequency and performance test for cellular mobile terminals, radio frequency and performance test for non-cellular products, terminal protocol test and application layer throughput test, vehicle emergency call system performance and end-to-end test, Internet of Vehicles test, terminal audio, video quality test and terminal A-GNSS test. Each comprehensive test instrument 103 device includes a VSG (vector signal generator) and a VSA (vector signal analyzer). VSG can be used as a signal source. With the relevant signal configuration files preset by the device, it can select to generate a signal of a specific mode to test the receiving performance of the product. VSA is used to analyze the received signal and output various indicator parameters related to the signal in order to consider the pros and cons of the signal. It is suitable for the transmission performance test of the product's visual radio frequency module.

[0037] Specifically, the present application provides a radio frequency calibration method, see Figure 2 , Figure 2 : is a flow chart of an embodiment of a radio frequency calibration method provided by the present application, and the radio frequency calibration method includes:

[0038] Step 10: Obtain each original frequency band under each signal transmission standard supported by the terminal device.

[0039] The signal transmission format is a UE signal transmission standard. The frequency of the signal transmission format refers to the difference in each network frequency band. The relevant departments divide different frequency bands so that they can operate on different frequency bands without interfering with each other. By querying the model of the terminal device 102, the signal transmission format supported by the terminal device 102 can be obtained. 3GPP specifies all the current LTE frequency bands, the frequency range of the frequency band, and the LTE format.

[0040] In some embodiments, the original frequency band includes a transmit frequency band and a receive frequency band.

[0041] In some embodiments, the signal transmission standards include: GSM (Global System for Mobile Communication), CDMA (Code Division Multiple Access), 3G (3rd Generation), 4G (4th Generation) and 5G (5th Generation), etc.

[0042] In one embodiment, the signal transmission standards commonly used by UE include CDMA 1X, 800MHz frequency band occupied by CDMA mobile phones; 900 / 1800 / 1900MHz frequency band occupied by GSM mobile phones; 900 / 1800MHz frequency band occupied by GSM 1X dual-mode (i.e. WCDMA) in the past two years; 900 / 1800 / 1900 / 2100MHz frequency band occupied by 3G; 1920-2170MHz frequency band occupied by 4G. China Unicom 4G currently occupies 2555-2575MHz and 2300-2320MHz frequency bands.

[0043] Step 20: Based on the mapping relationship between the original frequency bands at the absolute frequency, the original frequency bands meeting the preset conditions are merged to generate a new sub-frequency band.

[0044] In one embodiment, the mapping relationship between the original frequency bands at the absolute frequency refers to mapping the frequency bands to be calibrated to the frequency range specified by 3Gpp, so as to more intuitively show the relationship between the original frequency bands, such as overlap, inclusion and irrelevance.

[0045] Based on the frequency range of the frequency band specified by 3GPP, the computer device 101 searches and maps the absolute frequency point in the pre-stored 3GPP frequency band according to the frequency band to be calibrated; merges the original frequency bands that meet the preset conditions, including: merging the original frequency bands that have overlapping areas under absolute frequency.

[0046] In one embodiment, if Figure 3 As shown, the B3 band (1700-1785MHz) includes B4 (1700-1755MHz) and B66 (1700-1780MHz), so the merged B01 band is 1700-1785MHz; the B25 band (1850-1915MHz) partially overlaps with B39 (1850-1910MHz), so the merged B02 band is 1850-1915MHz.

[0047] In another embodiment, if Figure 4 As shown, the B73 frequency band (450-455MHz), B72 (451-456MHz) and B31 (452.5-457.5MHz) partially overlap with each other, so the merged B03 frequency band is 450-457.5MHz.

[0048] See also Figure 5, and apply it to a specific terminal device. The original frequency bands supported by the terminal device include Band 1, Band 2, Band 3, Band 4, Band 5, Band 8, Band 12, Band 13, Band 18, Band 19, Band 20, Band 25, Band 26, Band 27, Band 28, Band 31, Band 66, Band 72, Band 73, and Band 85 under the Band item. In the original solution, each band needs to calibrate 3 frequency points. After applying this solution, Band 1 does not overlap with other bands, and it is used as a sub-band B01 alone; Band 3, Band 4, and Band 66 have overlapping areas. The sub-band B02 is formed by merging; the band 8 does not overlap with other bands, and it is used as a sub-band B03; the band 14 does not overlap with other bands, and it is used as a sub-band B04; the band 2 and the band 25 overlap, and they are merged to form a sub-band B05; the bands 5, 18, 19, 20, 26 and 27 overlap, and they are merged to form a sub-band B06; the bands 31, 72 and 73 overlap, and they are merged to form a sub-band B07; the bands 12, 228 and 85 overlap, and they are merged to form a sub-band B08. The number of original bands is 20, and the number of sub-bands formed by merging is 8, and each band also needs to calibrate 3 frequency points, so the number of frequency points to be calibrated in this embodiment is reduced from 60 to 24, and it can be seen that the calibration efficiency is improved by 60%.

[0049] By combining frequency bands, the associated signal processing equipment can be optimized for fewer frequency bands, thereby reducing processing complexity and cost.

[0050] Step 30: Obtain a preset number of absolute frequency points from the sub-frequency band, and perform calibration and comprehensive measurement on the sub-frequency band based on the absolute frequency points to obtain calibration data.

[0051] Obtaining a preset number of absolute frequency points from a sub-frequency band includes: selecting equally divided points on the sub-frequency band as absolute frequency points according to a preset number. The preset number is generally three or more, and the more absolute frequency points selected, the more accurate the calibration. In one embodiment, the preset number of absolute frequency points are three absolute frequency points of high, medium and low, which are respectively the maximum value, the middle value and the minimum value of the frequency of the sub-frequency band; in another embodiment, the preset number of absolute frequency points is four, which are respectively the four equally divided points of the sub-frequency band.

[0052] The comprehensive test instrument 103 is used to perform comprehensive calibration test, which includes AFC (Auto Frequency Control, automatic frequency control) calibration, AGC (Auto gain control, automatic gain control) calibration and APC (Autopowercontrol, automatic power control) calibration.

[0053] AGC calibration is to measure the corresponding relationship between the control voltage and the received signal power, and write this corresponding relationship into a storage medium such as E2ROM.

[0054] AFC calibration is to adjust the reference frequency of the oscillator so that the signal transmitted by the UE has the correct carrier frequency. The calibration method is to set the UE to transmit signals at a series of specific frequencies, use a signal analyzer to test the frequency error of the signal, then calculate the AFC compensation voltage, and write the adjusted AFC voltage to a storage medium such as E2ROM.

[0055] The calibration of the APC control voltage is to measure the corresponding relationship between the control voltage and the transmission power, and write this corresponding relationship into a storage medium such as E2ROM. In one embodiment, the test instrument for APC calibration is a signal analyzer, which performs instantaneous power test on the radio frequency signal transmitted by the terminal. The measured signal can be a continuous wave signal or a specifically modulated signal.

[0056] The calibration data obtained by the calibration comprehensive test is the calibration data of the merged sub-bands.

[0057] Step 40: Based on the calibration data and the mapping relationship between the absolute frequency points and the corresponding original frequency bands, original calibration data corresponding to the original calibration frequency points of each original frequency band are generated.

[0058] In one embodiment, for example, after B01 is calibrated through three absolute frequency points to obtain calibration data, its calibration data is extended according to the interpolation method, and the calibration parameters of the original frequency bands B4 and B66 are obtained from the extended frequency points of B01.

[0059] In some embodiments, based on the mapping relationship between the calibration data and the absolute frequency points and the corresponding original frequency bands, original calibration data corresponding to the original calibration frequency points of each original frequency band are generated, including: establishing a linear relationship between a preset number of absolute frequency points and the corresponding calibration data, and using an interpolation method to generate original calibration data corresponding to the original calibration frequency points of each original frequency band.

[0060] The interpolation method is implemented by linear fitting of a calculation program, and according to the extended calibration parameters, an AGC calibration table, an AFC calibration table and an APC calibration table can be obtained. All calibration data required for the original frequency band calibration can be obtained through the calibration table.

[0061] By inferring the value of unknown data points based on known data points, the calibration data is made more complete and accurate, ensuring the accuracy and consistency of data within the calibration range, and significantly reducing the number and time of experimental measurements. By extending the calibration parameters of the sub-band to every frequency point of the original band, the data in the entire band is ensured to be accurately calibrated, reducing the errors and fluctuations caused by discrete calibration points. In multi-band communication systems, interpolation helps to achieve coordinated calibration between bands.

[0062] Step 50: Store the original calibration data in a storage area associated with the original frequency band in the terminal device.

[0063] All the calibration data required for the calibration are stored in the storage area corresponding to the terminal device 102, such as E2ROM, to complete the calibration.

[0064] See also Figure 5 , Figure 5 It is a structural diagram of an embodiment of the storage medium provided by the present application.

[0065] The storage medium 60 stores program data 61. When the program data 61 is executed by the processor, the following is achieved: Figure 2 The steps of the RF calibration method are described.

[0066] The program data 61 is stored in a storage medium 60, and includes a number of instructions for enabling a network device (such as a router, a personal computer, a server, or other network device) or a processor to execute all or part of the steps of the method described in each embodiment of the present application.

[0067] Optionally, the storage medium 60 may be a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, an optical disk, or other medium that can store the program data 61 .

[0068] See also Figure 6 , Figure 6 The computer device 101 includes a processor 12 and a memory 11 connected to each other, the memory 11 stores a computer program, and when the processor 12 executes the computer program, the steps of the above-mentioned radio frequency calibration method are implemented.

[0069] Different from the prior art, the present application discloses a radio frequency calibration method, storage medium, computer equipment and production line calibration device. By merging the original frequency bands under the signal transmission formats supported by the terminal device according to preset conditions, the number of new sub-frequency bands generated is greatly reduced compared with the number of original frequency bands, so that the number of calibration comprehensive tests for new sub-frequency bands according to absolute frequency points is also relatively greatly reduced, and the time spent on comprehensive tests is also reduced. A preset number of absolute frequency points are obtained on the sub-frequency bands, and calibration comprehensive tests are performed based on these frequency points, which can ensure that the accuracy of the calibration meets the technical requirements; and then the interpolation method is implemented by computer means, so that the calibration data can be reused for other original frequency bands, reducing the need to calibrate each frequency band separately.

[0070] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the storage medium embodiment and the electronic device embodiment, since they are basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0071] The present application can be used in many general or special computing system environments or configurations, such as personal computers, server computers, handheld or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set-top boxes, programmable consumer electronic devices, network PCs, minicomputers, mainframe computers, distributed computing environments including any of the above systems or devices, etc.

[0072] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device implementation described above is only illustrative, for example, the division of the modules or units is only a logical function division, and 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.

[0073] 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 present embodiment.

[0074] 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.

[0075] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A radio frequency calibration method, characterized in that: include: Obtain each original frequency band under each signal transmission standard supported by the terminal device; Based on the mapping relationship between the original frequency bands at the absolute frequency, the original frequency bands meeting the preset conditions are merged to generate a new sub-frequency band; Acquire a preset number of absolute frequency points from the sub-frequency band, and perform calibration and comprehensive measurement on the sub-frequency band based on the absolute frequency points to obtain calibration data; Based on the calibration data and a mapping relationship between the absolute frequency points and the corresponding original frequency bands, generating original calibration data corresponding to the original calibration frequency points of the original frequency bands; The original calibration data is stored in a storage area associated with the original frequency band in the terminal device.

2. The radio frequency calibration method according to claim 1, characterized in that: The generating original calibration data corresponding to the original calibration frequency point of each original frequency band based on the calibration data and the mapping relationship between the absolute frequency point and the corresponding original frequency band includes: A linear relationship is established between a preset number of the absolute frequency points and the corresponding calibration data, and an interpolation method is used to generate original calibration data corresponding to the original calibration frequency points of each original frequency band.

3. The radio frequency calibration method according to claim 1, characterized in that: The merging of the original frequency bands meeting the preset conditions comprises: The original frequency bands having overlapping regions at the absolute frequency are merged.

4. The radio frequency calibration method according to claim 1, characterized in that: The acquiring a preset number of absolute frequency points from the sub-frequency band includes: The preset number of equally divided points on the sub-frequency band is selected as the absolute frequency points.

5. The radio frequency calibration method according to claim 1, characterized in that: The original frequency band includes a transmitting frequency band and a receiving frequency band.

6. The radio frequency calibration method according to claim 1, characterized in that: The signal transmission standards include: GSM, CDMA, 3G, 4G and 5G.

7. The radio frequency calibration method according to claim 1, characterized in that: The calibration test includes AFC calibration, AGC calibration and APC calibration.

8. A storage medium having program data stored thereon, characterized in that: When the program data is executed by a processor, the steps of the radio frequency calibration method according to any one of claims 1 to 7 are implemented.

9. A computer device, characterized in that: The computer device comprises a processor and a memory connected to each other, the memory stores a computer program, and when the processor executes the computer program, the radio frequency calibration method according to any one of claims 1 to 7 is implemented.

10. A production line calibration device, characterized in that: It comprises a terminal device to be calibrated, a comprehensive measuring instrument and a computer device as described in any one of claims 9, wherein the computer device is communicatively connected with the terminal device to be calibrated and the comprehensive measuring instrument, and the comprehensive measuring instrument is communicatively connected with the terminal device to be calibrated.

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