CN110535539B - Power compensation method, device, equipment and medium for radio frequency module - Google Patents
Power compensation method, device, equipment and medium for radio frequency module Download PDFInfo
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- CN110535539B CN110535539B CN201910810300.9A CN201910810300A CN110535539B CN 110535539 B CN110535539 B CN 110535539B CN 201910810300 A CN201910810300 A CN 201910810300A CN 110535539 B CN110535539 B CN 110535539B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/21—Monitoring; Testing of receivers for calibration; for correcting measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
Abstract
The invention discloses a power compensation method for a radio frequency module, relates to the technical field of communication, aims to realize rapid power compensation for the radio frequency module, can ensure the consistency of power calibration, and is suitable for batch test, and comprises the following steps: receiving a power calibration instruction; controlling a radio frequency module to output an RF signal according to the power calibration instruction; the RF signal is sampled to calculate an actual signal strength value, and a register value is modified based on the actual signal strength value, thereby completing power calibration. The invention also discloses a power compensation device, electronic equipment and a computer storage medium for the radio frequency module.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a power compensation method, apparatus, device, and medium for a radio frequency module.
Background
The wireless radio frequency module is used for judging the link quality of a communication link according to the received signal strength indication in the process from the development end to the marketing so as to determine whether to increase the broadcast sending strength.
The RF power is often used as an index for evaluating the signal strength, and the industry tests the RF power at present mainly depends on some specialized instruments, such as Itest (wireless network tester), spectrum tester, and the like. The professional instrument obtains a spectrum image by performing Fourier transform on the wireless signal, thereby realizing RF power test, and then respectively performing power compensation based on the spectrum image. However, for mass-produced rf modules, the above power testing method requires connecting each rf module to an instrument for testing, which consumes labor and time, and is not suitable for mass power testing and calibration.
Disclosure of Invention
In order to overcome the defects of the prior art, an object of the present invention is to provide a power compensation method for a radio frequency module, which can quickly test the RF power of the radio frequency module, and perform automatic calibration at the same time, is convenient to operate, and is suitable for performing batch power compensation on the radio frequency module.
One of the purposes of the invention is realized by adopting the following technical scheme:
a power compensation method for a radio frequency module, comprising the steps of:
receiving a power calibration instruction;
controlling a radio frequency module to output an RF signal according to the frequency offset calibration instruction;
and receiving an RF signal of the radio frequency module, converting the RF signal into an actual signal strength value, and modifying the register value based on the actual signal strength value.
And further, receiving the power calibration instruction through a standard test board, and controlling the radio frequency module to output an RF signal.
Further, the RF signal is output by presetting an output interface for the radio frequency module.
Further, the RF signal is conductively received through a standard test board and converted to the actual signal strength value based on the RF signal.
Further, based on the actual signal intensity value, modifying the register value of the radio frequency module in a serial port interaction mode.
Further, modifying the register value of the radio frequency module comprises: when the actual signal intensity value is greater than the standard signal intensity value, reducing the register value; and when the actual signal intensity value is smaller than the standard signal intensity value, increasing the register value.
Further, the method for determining the standard signal strength value comprises the following steps: before receiving a power calibration instruction, selecting a radio frequency module meeting a power standard, outputting a standard RF signal through the radio frequency module meeting the power standard, and converting the standard RF signal into a standard signal intensity value; after receiving the power calibration instruction, comparing the actual signal strength value with the standard signal strength value, and then modifying a register value according to a comparison result.
Another object of the present invention is to provide a power compensation apparatus for rf modules, which can test the rf power of the rf modules in batch and perform automatic power compensation at the same time, thereby completing the power calibration and facilitating the operation.
The second purpose of the invention is realized by adopting the following technical scheme:
a power compensation method device for a radio frequency module comprises the following steps:
the instruction acquisition module is used for acquiring a power calibration instruction;
the control module is used for controlling the radio frequency module to output an RF signal according to the frequency offset calibration instruction;
and the calibration module is used for receiving the RF signal of the radio frequency module, converting the RF signal into an actual signal strength value and modifying the register value based on the actual signal strength value.
It is a further object of the present invention to provide an electronic device for performing one of the above objects, comprising a processor, a storage medium, and a computer program stored in the storage medium, which when executed by the processor implements the above power compensation method for a radio frequency module.
It is a fourth object of the present invention to provide a computer readable storage medium storing one of the objects of the invention, having a computer program stored thereon, which when executed by a processor, implements the above-mentioned power compensation method for a radio frequency module.
Compared with the prior art, the invention has the beneficial effects that:
the invention does not need to be connected with a conventional power test instrument, only needs to control the radio frequency module to output the RF signal according to the power calibration instruction, converts the RF signal into the actual signal strength to complete the power test, and can simultaneously complete the automatic power compensation according to the frequency deviation test result, thereby realizing the rapid power test and calibration of the radio frequency module, having convenient operation and being suitable for batch operation.
Drawings
FIG. 1 is a flow chart of a method for fast calibration of a radio frequency module according to the present invention;
fig. 2 is a block diagram showing the structure of the fast calibration apparatus for a radio frequency module according to embodiment 2;
fig. 3 is a block diagram of the electronic apparatus of embodiment 3.
Detailed Description
The present invention will now be described in more detail with reference to the accompanying drawings, in which the description of the invention is given by way of illustration and not of limitation. The various embodiments may be combined with each other to form other embodiments not shown in the following description.
Example 1
The embodiment provides a power compensation method for a radio frequency module, aiming at simplifying a connection mode during testing of the radio frequency module under the condition of not connecting a testing instrument, so that the rapid power testing and automatic power compensation of the radio frequency module are realized, the method is suitable for batch testing, the batch testing efficiency can be improved, and the method has the advantages of convenience in operation and low cost.
According to the above principle, a power compensation method for a radio frequency module is introduced, as shown in fig. 1, the power compensation method for a radio frequency module specifically includes the following steps:
receiving a power calibration instruction;
controlling a radio frequency module to output an RF signal according to the frequency offset calibration instruction;
and receiving an RF signal of the radio frequency module, converting the RF signal into an actual signal strength value, and modifying a register value based on the actual signal strength value so as to complete power compensation.
The modified register value is a value for storing power data in the modified register.
The RSSI value, which is the signal strength indicator mentioned in the embodiments of the present invention, represents a received signal strength indication, and is used to determine the link quality of the rf module and determine whether to increase the broadcast transmission strength.
Preferably, the power calibration instruction is received through a standard test board, and the radio frequency module is controlled to output an RF signal, wherein the standard test board is connected with the PC terminal and the radio frequency module and is used for performing sampling data and frequency offset calibration, an FPGA chip is installed in the standard test board, and a signal receiving circuit is provided in the standard test board, and the FPGA chip includes a configurable logic module, an input/output module, and a memory. The standard test board is connected with a PC end through a USB interface, receives a power calibration instruction sent by the PC end, and interacts with the radio frequency module through the UART, namely, the control of the radio frequency module is realized, so that the radio frequency module outputs an RF signal according to the power calibration instruction, and the register value of the radio frequency module is modified.
Preferably, the RF signal is output by presetting an output interface for the RF module, and in this embodiment, the RF module presets a GPIO port as the output interface.
Preferably, the RF signal is received by a signal receiving circuit of the standard test board in a conduction manner, and the RF signal is converted into the actual signal intensity value based on the RF signal, in this embodiment, the actual signal intensity value is calculated according to the received RF signal by a configurable logic module of an FPGA chip inside the standard test board, in this embodiment, the RF signal is transmitted to the standard test board in a conduction manner, and the conduction manner is that the RF signal is transmitted to the standard test board through a conductive metal wire, so that environmental interference (such as electromagnetic wave interference in the air) can be avoided, and thus the accuracy of the RF signal is ensured. In other embodiments of the present invention, if the RF signal is transmitted by the coupling plate in an environment without electromagnetic wave interference, the fluctuation of the signal intensity value obtained according to the RF signal transmitted by the coupling plate may be higher than that of the transmission mode, and therefore, the present invention is suitable for the situation where the requirement on the accuracy of power calibration is not high.
Preferably, before receiving the power calibration instruction, selecting a radio frequency module meeting a power standard, outputting a standard RF signal through the radio frequency module, and converting the standard RF signal into a standard signal strength value, thereby obtaining a standard signal strength value; after receiving the power calibration instruction, comparing the actual signal intensity value converted according to the actual RF signal with the standard signal intensity value, and then modifying the register value according to the comparison result, thereby completing the power compensation, realizing the power calibration, and ensuring the consistency of the power calibration of the module.
In this embodiment, the standard RF signal is converted into the RSSI value (i.e., the signal strength value) by a formula of a hardware circuit manufacturer, and without a fixed conversion formula, the register value of the ready-made RSSI value of the IC of the manufacturer can be directly called.
Preferably, the actual signal intensity value is compared with the standard signal intensity value based on the actual signal intensity value to obtain a comparison result, and the comparison process is completed by a configurable logic module of the FPGA chip in the standard test board. According to the comparison result, the standard test board of the standard test board modifies the register value of the radio frequency module in a serial port interaction mode: when the actual signal intensity value is greater than the standard signal intensity value, reducing the register value; and when the actual signal intensity value is smaller than the standard signal intensity value, increasing the register value.
The radio frequency module can directly measure the received signal strength by using the RF energy dBm and also can use an RSSI value; the RSSI value is a relative value, which is affected by space, distance, etc.
In actual operation, the RSSI value is defined by the manufacturer of the rf module, for example, one manufacturer may define that the RSSI is 80 corresponding to-65 dBm; another may define RSSI 80 for-60 dBm, etc. Therefore, in practical applications, the signal strength is reflected by controlling the uniform variables, and of course, the signal strength varies, i need a standard acceptable range of floating values, and the signal strength can be considered to be qualified as long as the signal strength is within the range of the floating values, for example: a, RSSI: RSSI: RSSI: RSSI: RSSI: -50, etc.
Therefore, in some embodiments of the present invention, the RSSI value range between-55 and-62 is required to be satisfactory, so that the register values corresponding to the powers of D and E need to be adjusted until testing again, the RSSI value of the module is within the required range, and when the RSSI value is smaller, the received signal strength is weaker, which indicates that the transmission power of the radio frequency module is smaller, and conversely, when the received signal strength is stronger, which indicates that the transmission power of the radio frequency module is larger. For example, the RSSI value of E is-50, which indicates that the power is large and the power of the rf module needs to be reduced, while the RSSI value of D is-65, which indicates that the power is small and the power of the rf module needs to be increased. And increasing or decreasing power is accomplished by modifying the value of a register holding power data. The invention completes the power compensation by increasing and decreasing the register value, the process is automatic control, no manual control is needed, and the serial port interaction mode adopts UART (universal serial data bus).
And when the power compensation is finished, the power calibration is finished, the calibration result is returned to the PC end through the standard test board, and the power calibration result of the radio frequency module is recorded by the PC end.
Example 2
Embodiment 2 discloses a device corresponding to the power compensation method for a radio frequency module in embodiment 1, and please refer to fig. 2, which includes:
an instruction obtaining module 210, configured to obtain a power calibration instruction;
a control module 220, configured to control the radio frequency module to output an RF signal according to the frequency offset calibration instruction;
the calibration module 230 is configured to receive the RF signal of the radio frequency module, convert the RF signal into an actual signal strength value, and modify the register value based on the actual signal strength value.
Example 3
Fig. 3 is a schematic structural diagram of an electronic device according to embodiment 3 of the present invention, as shown in fig. 3, the electronic device includes a processor 310, a memory 320, an input device 330, and an output device 340; the number of the processors 310 in the computer device may be one or more, and one processor 310 is taken as an example in fig. 3; the processor 310, the memory 320, the input device 330 and the output device 340 in the electronic apparatus may be connected by a bus or other means, and the connection by the bus is exemplified in fig. 3.
The memory 320 is a computer-readable storage medium, and can be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the power compensation method for the rf module in the embodiment of the present invention (for example, the instruction obtaining module 210, the control module 220, and the calibration module 230 in the power compensation apparatus for the rf module). The processor 310 executes various functional applications and data processing of the electronic device by executing software programs, instructions and modules stored in the memory 320, that is, implements the power compensation method for the radio frequency module of embodiment 1.
The memory 320 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 320 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 320 may further include memory located remotely from the processor 310, which may be connected to the electronic device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 330 may be used to input power calibration commands, etc. The output device 340 is used for outputting and displaying the power calibration result.
Example 4
Embodiment 4 of the present invention also provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to implement a power compensation method for a radio frequency module, the method including:
receiving a power calibration instruction;
controlling a radio frequency module to output an RF signal according to the frequency offset calibration instruction;
and receiving an RF signal of the radio frequency module, converting the RF signal into an actual signal strength value, and modifying a register value based on the actual signal strength value so as to complete power compensation.
Of course, the storage medium containing the computer-executable instructions provided by the embodiments of the present invention is not limited to the method operations described above, and may also perform related operations in the power compensation method for the radio frequency module provided by any embodiments of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes instructions for enabling an electronic device (which may be a mobile phone, a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
It should be noted that, in the embodiment of the power compensation apparatus for a radio frequency module, each included unit and module are only divided according to functional logic, but are not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.
Claims (7)
1. A method for power compensation of a radio frequency module, comprising the steps of:
the standard test board receives a power calibration instruction;
the standard test board controls a radio frequency module to output an RF signal according to the power calibration instruction;
the standard test board receives an RF signal of the radio frequency module and converts the RF signal into an actual signal intensity value;
the standard test board modifies a register value of a radio frequency module through UART universal asynchronous receiver transmitter serial port interaction based on the actual signal intensity value, and correspondingly reduces the register value if the actual signal intensity value is larger; and if the actual signal intensity value is smaller, correspondingly increasing the register value so as to achieve power calibration.
2. The power compensation method for a radio frequency module according to claim 1, wherein the RF signal is outputted by presetting an output interface to the radio frequency module.
3. The method of any of claims 1-2, wherein the RF signal is conductively received through a standard test board and converted to the actual signal strength value based on the RF signal.
4. The power compensation method for a radio frequency module of claim 1, wherein the method of determining the standard signal strength value is: before receiving a power calibration instruction, selecting a radio frequency module meeting a power standard, outputting a standard RF signal through the radio frequency module meeting the power standard, and converting the standard RF signal into a standard signal intensity value; after receiving the power calibration instruction, comparing the actual signal strength value with the standard signal strength value, and then modifying a register value according to a comparison result.
5. A power compensation device for a radio frequency module is applied to a standard test board, and the standard test board comprises:
the instruction acquisition module is used for acquiring a power calibration instruction;
the control module is used for controlling the radio frequency module to output an RF signal according to the power calibration instruction;
the calibration module is used for receiving the RF signal of the radio frequency module and converting the RF signal into an actual signal intensity value;
the standard test board modifies a register value of a radio frequency module through UART universal asynchronous receiver transmitter serial port interaction based on the actual signal intensity value, and correspondingly reduces the register value if the actual signal intensity value is larger; and if the actual signal intensity value is smaller, correspondingly increasing the register value so as to achieve power calibration.
6. An electronic device comprising a processor, a storage medium, and a computer program, the computer program being stored in the storage medium, wherein the computer program, when executed by the processor, implements the power compensation method for a radio frequency module of any one of claims 1 to 4.
7. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the power compensation method for a radio frequency module of any one of claims 1 to 4.
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| CN111478737B (en) * | 2020-04-21 | 2022-07-19 | Oppo广东移动通信有限公司 | Radio frequency test method, device, electronic device and storage medium |
| CN111970067B (en) * | 2020-08-26 | 2022-08-12 | 炬芯科技股份有限公司 | Method and device for calibrating output power |
| CN112202507B (en) * | 2020-11-19 | 2022-07-29 | 深圳市友华通信技术有限公司 | WIFI production measurement and calibration method and computer-readable storage medium |
| CN113098545B (en) * | 2021-03-26 | 2022-08-19 | 维沃移动通信有限公司 | Control method, device and equipment of radio frequency device and storage medium |
| CN114172593A (en) * | 2021-11-04 | 2022-03-11 | 杭州涂鸦信息技术有限公司 | Power calibration method, calibration equipment and calibration system of wireless module |
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