CN114172593A - Power calibration method, calibration equipment and calibration system of wireless module - Google Patents
Power calibration method, calibration equipment and calibration system of wireless module Download PDFInfo
- Publication number
- CN114172593A CN114172593A CN202111302073.2A CN202111302073A CN114172593A CN 114172593 A CN114172593 A CN 114172593A CN 202111302073 A CN202111302073 A CN 202111302073A CN 114172593 A CN114172593 A CN 114172593A
- Authority
- CN
- China
- Prior art keywords
- power
- wireless module
- frequency
- frequency point
- target wireless
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 108
- 230000004044 response Effects 0.000 claims description 54
- 238000012360 testing method Methods 0.000 claims description 23
- 230000035772 mutation Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 7
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
- H04B17/13—Monitoring; Testing of transmitters for calibration of power amplifiers, e.g. gain or non-linearity
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Nonlinear Science (AREA)
- Transmitters (AREA)
Abstract
The application discloses a power calibration method, which comprises the following steps: selecting a frequency point from the working frequency band of the target wireless module as a characteristic frequency point, calibrating the power transmission parameters of the wireless module at the characteristic frequency point based on the first current transmission power of the wireless module at the characteristic frequency point, and calibrating the power transmission parameters of the wireless module at other frequency points by using the power transmission parameters of the wireless module at the characteristic frequency point. In this way, this application can improve wireless module's calibration time, and then improves wireless module's production efficiency.
Description
Technical Field
The present disclosure relates to the field of wireless communication technologies, and in particular, to a power calibration method, a calibration device, and a calibration system for a wireless module.
Background
Due to the difference of the chip, the material, the plate and the chip mounting process among the wireless modules, the power response of the device in the same frequency band has some difference, and in order to ensure the consistency of the power among the produced devices, the power calibration of the wireless modules needs to be carried out on a production line, so that the difference between the power sent by the wireless modules in an actual working mode and the target power is within a set error range.
For example, for Wifi equipment working in an ISM frequency band (referring to a working frequency band at 2400-2483.5MHz), if there are a total of CH1-CH13 channels, during power calibration, CH1, CH7, and CH13 are often selected, that is, channels 1, 7, and 13 are subjected to power measurement, so as to obtain current transmission powers of channels 1, 7, and 13, and power calibration is performed on channels 1, 7, and 13 based on the current transmission powers of channels 1, 7, and 13. The existing power calibration mode needs to respectively perform power measurement recalibration on a plurality of channels, and the required calibration time is long, so that the production cost is increased.
Disclosure of Invention
The technical problem mainly solved by the application is to provide a power calibration method, calibration equipment and a calibration system for a wireless module, which can quickly calibrate the power of the wireless module.
In order to solve the above technical problem, a first aspect of the present application provides a method for calibrating power of a wireless module, including: selecting a frequency point from the working frequency band of the target wireless module as a characteristic frequency point; calibrating the power transmission parameters of the target wireless module at the characteristic frequency point based on the first current transmission power of the target wireless module at the characteristic frequency point; and calibrating the power transmission parameters of the target wireless module at other frequency points by using the power transmission parameters of the characteristic frequency points.
In order to solve the above technical problem, a second aspect of the present application provides a power calibration device, which includes a memory and a processor connected to each other, wherein the memory stores program instructions, and the processor is configured to execute the program instructions to implement the power calibration method of the first aspect.
In order to solve the above technical problem, a third aspect of the present invention provides a power calibration system, which includes a power detector and a power calibration device connected to each other, where the power calibration device is the device provided in the second aspect, and in the power calibration system, the power calibration device is in communication connection with a target wireless module to control the target wireless module to transmit a signal; the power detector is connected with the target wireless module in a conduction mode and used for detecting the transmitting power of the target wireless module and feeding the transmitting power back to the power calibration equipment.
The beneficial effect of this application is: different from the situation of the prior art, the method selects a frequency point as a characteristic frequency point from the working frequency band of the target wireless module, calibrates the power emission parameter of the target wireless module at the characteristic frequency point based on the first current emission power of the target wireless module at the characteristic frequency point, and calibrates the power emission parameter of the target wireless module at other frequency points by using the power emission parameter of the characteristic frequency point. According to the calibration method, the power emission parameters are calibrated only by measuring the power of the characteristic frequency points, and the power emission parameters of other frequency points can be calibrated by directly utilizing the power emission parameters of the characteristic frequency points, so that the power of the wireless module can be quickly calibrated, the calibration time of the wireless module is obviously reduced, the production efficiency of the wireless module is improved, and the production cost is saved.
Drawings
FIG. 1 is a flow chart illustrating an embodiment of a method for power calibration of a target wireless module of the present application;
FIG. 2 is a schematic flow chart diagram illustrating one embodiment of obtaining a first response curve according to the present disclosure;
FIG. 3 is a second frequency response graph of an exemplary wireless module embodiment of the present application;
FIG. 4 is a first frequency response graph of one embodiment of a wireless module, object of the present application;
FIG. 5 is a flow chart illustrating an embodiment of calibrating power transmission parameters of a target wireless module at other frequency points according to the present disclosure;
FIG. 6 is a flowchart illustrating an embodiment of step S531 in FIG. 5;
FIG. 7 is a first frequency response curve of yet another embodiment of a wireless module, object of the present application;
FIG. 8 is a flow chart illustrating a power calibration method for a target wireless module according to another embodiment of the present disclosure;
FIG. 9 is a block diagram of one embodiment of a wireless module, according to the present application;
FIG. 10 is a block diagram of an embodiment of the power calibration apparatus of the present application;
FIG. 11 is a block diagram of an embodiment of the power calibration system of the present application.
Detailed Description
The technical solutions in the embodiments of the present application are 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.
It should be noted that, in the embodiments of the present application, there are descriptions related to "first", "second", etc., and the descriptions of "first", "second", etc. are only used for descriptive purposes and are not to be interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
The power calibration method, calibration apparatus and calibration system for a wireless module according to the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a flow chart illustrating an embodiment of a method for calibrating power of a target wireless module according to the present application, the method may include the following steps:
s110: and selecting a frequency point from the working frequency band of the target wireless module as a characteristic frequency point.
Specifically, the selection strategy of the characteristic frequency point can be determined according to the actual situation. In some embodiments, when the target wireless module operates in a certain frequency band, a first frequency response curve of the target wireless module may be made based on different frequency points in the frequency band and power values of the frequency points, and a frequency point may be selected from the first frequency response curve as a characteristic frequency point, where the characteristic frequency point may select a frequency point having a preset variation trend in the first frequency response curve, and the preset variation trend may be determined according to an actual situation, which is not limited herein.
In an embodiment, the characteristic frequency point may be a frequency point corresponding to a position of a sharp protrusion in the first frequency response curve. The sharp abrupt change positions are turning points of the increasing stage and the decreasing stage in the first frequency response curve, such as turning point a of the increasing stage to the decreasing stage and turning point B of the decreasing stage to the increasing stage shown in fig. 7. Further, the sharp transition position may be further defined as a turning point at which the slope of the increasing and/or decreasing stage is greater than a predetermined slope value among all the turning points.
In another embodiment, the characteristic frequency point may be a frequency point of a position having a symmetric characteristic in the first frequency response curve. The position having the symmetric characteristic may be understood as a position where two line segments extending from the position having the symmetric characteristic to the left and right sides in the first frequency response curve are symmetric with respect to an axis passing through the position having the symmetric characteristic.
S120: and calibrating the power transmission parameters of the target wireless module at the characteristic frequency point based on the first current transmission power of the target wireless module at the characteristic frequency point.
The power transmission parameters are used for determining the transmission power of the wireless module, wherein different power transmission parameters correspond to different transmission powers. In one embodiment, the power transmission parameter is represented by an Index value, and the transmission power of the target wireless module is corrected by adjusting the Index value. For example, in a certain platform, one Index value represents that the power variation is 0.25dB, and if the power variation to be adjusted is 1dB, the power transmission parameter needs to be adjusted by 4 Index values.
In an embodiment, a corresponding relationship between the transmission power and the power transmission parameter may be preset, after a first current transmission power of the target wireless module at the characteristic frequency point is obtained through measurement, a first power difference between the first current transmission power and the target power is calculated, and the power transmission parameter for calibrating the transmission power of the target wireless module at the characteristic frequency point may be obtained according to the preset corresponding relationship. For example, the target power of the target wireless module at the characteristic frequency point is 16dBm, the corresponding original power emission parameter is Index0, an Index value is preset to represent that the variation of the power is 0.25dB, if the first current emission power obtained by measurement is 15.5dBm, the first power difference obtained by calculation is 0.5dB, the power emission parameter corresponding to the first power difference is 2 Index values, and the power emission parameter of the calibrated characteristic frequency point is Index 0-2. The target power can be preset and determined, and generally, the target power values of wireless modules produced by the same production platform or wireless modules of the same model are the same. For example, a platform requires 16dBm for a 11B (wireless local area network standard) operating mode, and the target power of the wireless module on the subsequent related production line is 16 dBm. In addition, the target power of each working frequency point of the wireless module can be the same, and at the moment, the power calibration of each frequency point of the wireless module on the related production line is carried out around the target power value
S130: and calibrating the power transmission parameters of the target wireless module at other frequency points by using the power transmission parameters of the characteristic frequency points.
In this embodiment, the power transmission parameter compensation value between the other frequency point and the characteristic frequency point of the target wireless module, that is, the difference between the power transmission parameter of the other frequency point and the power transmission parameter of the characteristic frequency point, may be predetermined. After the power transmission parameters of the characteristic frequency points are obtained, the power transmission parameters of the target wireless module at other frequency points can be obtained by using the power transmission parameters of the characteristic frequency points and the corresponding power transmission parameter compensation values.
Referring to fig. 2-4, fig. 2 is a schematic flow chart illustrating a first response curve obtained in an embodiment of the present application, fig. 3 is a second frequency response curve of a sample wireless module in an embodiment of the present application, and fig. 4 is a first frequency response curve of a target wireless module in an embodiment of the present application.
In one embodiment, in the process of performing S110, a first frequency response curve of the target wireless module may be determined, and a frequency point may be selected from the operating frequency band of the target wireless module as the characteristic frequency point based on the first frequency response curve. The specific step of determining the first frequency response curve may include:
s211: and controlling at least one sample wireless module to transmit a first test signal of each frequency point in the working frequency band, and acquiring the transmission power of each sample wireless module corresponding to each frequency point, which is obtained by scanning the first test signal.
In this embodiment, the wireless module of the same model produced in the same production lot as the target wireless module can be selected as the sample wireless module, and the production lot is not limited as long as the model of the wireless module is the same as that of the target wireless module. At least one sample wireless module can be randomly selected from the sample wireless modules, the sample wireless modules are controlled to send first test signals of all channels, the first test signals are sub-signals of all channels of the working frequency band of the sample wireless modules, all the signals pass through all corresponding frequency points of the working frequency band of the sample wireless modules, and the power value of each signal at each corresponding frequency point is detected. Specifically, in an embodiment, the sample wireless module is a Wifi module, the sample wireless module operates in an ISM frequency band (i.e., an operating frequency band is 2400-2483.5MHz), a radio frequency unit of the sample wireless module is controlled to transmit a form of a single tone, that is, a Singletone, to each channel of the operating frequency band of the sample wireless module, and signals with different frequencies are transmitted to each channel of the operating frequency band of the sample wireless module, and each signal passes through each corresponding frequency point of the operating frequency band of the sample wireless module, so as to obtain a transmission power corresponding to each frequency point of each sample wireless module obtained by scanning each signal.
Specifically, in an embodiment, taking a Wifi module operating in an ISM band as an example, the Wifi module has 13 channels in total in the ISM band, and controls the sample wireless module to transmit a signal with different frequencies to each channel, where the frequency of the signal is 2412MHz on channel 1, the frequency of the signal is 2417MHz on channel 2, the frequency of the signal increases every 5MHz from channel 1 to channel 13, and the frequency of the signal is 2472MHz on channel 13, so as to obtain the actual power values of the Wifi module at CH1, CH2, and … … CH 13. It is understood that in other embodiments, the channel frequency may be incremented or decremented every 2MHz or 3MHz, which is not limited herein.
S212: and generating a second frequency response curve representing the transmitting power condition corresponding to each frequency point of each sample wireless module based on the transmitting power corresponding to each frequency point of each sample wireless module.
And after the transmitting power of each sample wireless module corresponding to each frequency point is obtained, establishing a coordinate system, wherein the abscissa is all the frequency points of each sample wireless module, and the ordinate is the transmitting power of each sample wireless module corresponding to each frequency point. And for each sample wireless module, finding out the points of the transmitting power of each frequency point of the sample wireless module in the coordinate system respectively and connecting the found points, wherein the obtained curve is a second frequency response curve of the transmitting power condition corresponding to each frequency point of the sample wireless module.
S213: and obtaining a first frequency response curve by using the second frequency response curve of each sample wireless module.
The frequency response characteristics of the sample wireless module of the same platform are generally consistent, and the final frequency response curve can be obtained by fitting the samples and taking the form of an average value through slight data difference. Therefore, the transmission power corresponding to each frequency point in the second frequency response curves of the plurality of sample wireless modules can be subjected to data fitting and averaged to obtain a new point, and the new point is connected by a line to obtain the first frequency response curve. Of course, in other embodiments, the second frequency response curve of one sample wireless module located at the middle position in the second frequency response curves of the sample wireless modules may also be used as the first frequency response curve, so how to obtain the first frequency response curve by using the second frequency response curve is not specifically limited.
With reference to fig. 3 and 4, in an embodiment, three sample wireless modules are randomly selected for testing, the three samples are named as a prototype 1, a prototype 2 and a prototype 3 in a wireless manner, the three prototypes are respectively controlled to transmit first signals with different frequencies to each channel in a working frequency band, the first signals respectively pass through corresponding frequency points of the working frequency band of the prototype, power values of the first signals with different frequencies transmitted by the three prototypes after passing through the corresponding frequency points are obtained, a coordinate system is established, the power values are represented by points in the coordinate system, and the points representing the power values of the three prototypes are respectively connected to obtain second frequency response curves of the three prototypes. And fitting the second frequency response curves of the three prototypes to obtain a first frequency response curve. It is understood that in other embodiments, four or more sample wireless modules may be selected for testing to obtain the second frequency response curve, and the four or more second frequency response curves may be fitted to obtain the first frequency response curve. The number of the selected sample wireless modules is not limited herein.
Since the frequency response characteristics of the sample wireless module are generally consistent with those of the platform, when the target wireless module is calibrated on a production line, the first frequency response curve obtained through data fitting can be used as the frequency response curve of the target wireless module.
Referring to fig. 5 and fig. 6 in combination, fig. 5 is a schematic flowchart of a process of calibrating power transmission parameters of a target wireless module at other frequency points according to an embodiment of the present application, and fig. 6 is a schematic flowchart of an embodiment of step S131 in fig. 5.
In this embodiment, the step S130 may specifically include:
s531: and determining the power transmission parameter compensation value between other frequency points and the characteristic frequency point.
The power transmission parameter compensation value is the difference value between the power transmission parameters of the target wireless module at other frequency points and the power transmission parameters of the target wireless module at the characteristic frequency points. The power transmission parameter compensation value can be determined by manual input, or determined by the power calibration equipment according to the power relation of each frequency point of the target wireless module, specifically according to the power relation of the frequency points on the first frequency response curve of the target wireless module.
In this embodiment, the step S531 may include the following sub-steps:
s531 a: and acquiring a second power difference value between other frequency points and the characteristic frequency point on the first frequency response curve of the target wireless module.
After the first frequency response curve of the target wireless module is obtained by the method, the transmitting power of the target wireless module corresponding to each frequency point can be obtained from the curve, and the difference value between the transmitting power of the target wireless module at other frequency points and the transmitting power of the characteristic frequency point is calculated, namely the second power difference value.
S531 b: and determining the power transmission parameter compensation values corresponding to other frequency points by using the second power difference values corresponding to other frequency points.
The power transmission parameter compensation value is the difference value between the power transmission parameters of the target wireless module at other frequency points and the power transmission parameters of the target wireless module at the characteristic frequency points. After the second power difference values corresponding to other frequency points are obtained, the power transmission parameter compensation value corresponding to the second power difference value can be determined according to the corresponding relation between the power transmission parameters and the transmission power.
S532: and determining the power transmission parameters of the target wireless module at other frequency points by using the power transmission parameter compensation values corresponding to other frequency points and the power transmission parameters of the characteristic frequency points.
In this embodiment, the power transmission parameter of the target wireless module at other frequency points is the sum of the power transmission parameter compensation value corresponding to the other frequency points and the power transmission parameter of the characteristic frequency point.
Referring to fig. 7, fig. 7 is a first frequency response curve of a wireless module according to another embodiment of the present application. Specifically, in one embodiment, the power transmission parameter is represented by an Index value, and the operating platform of the target wireless module to be calibrated includes 13 operating channels (i.e., the operating frequency of the target wireless module). In the platform, an Index value represents that the variation of power is 0.25dB, a frequency response curve of the target wireless module is made through data fitting, as shown in fig. 7, a frequency point 6 is selected as a characteristic frequency point, the transmission power corresponding to the frequency point 6 is 15.25dBm, at this time, the Index value corresponding to the target wireless module is 17, and it is assumed that the target power required to be achieved by calibration is 16.00 dBm. The difference value between the target power required to be achieved by calibration and the current transmitting power of the target wireless module at the frequency point 6 is 0.75dB, and since one Index value represents that the variation of the power is 0.25dB, the corresponding Index value should be increased by 3 values, so that the Index value of the target wireless module needs to be calibrated to be 20, and the transmitting power of the target wireless module at the frequency point 6 is 16.00 dBm.
When the transmitting power of other frequency points is calibrated, the power transmitting parameter compensation values corresponding to the other frequency points and the transmitting power difference values of the target wireless module between the other frequency points and the characteristic frequency points need to be calculated. Specifically, it can be obtained from the frequency response curve of the target wireless module, where the transmission power of the target wireless module at the frequency point 4 is 15.75dBm, and the difference between the transmission powers of the frequency point 4 and the frequency point 6 when the frequency point 4 and the frequency point 6 are not calibrated is 0.50dB, and since one Index value represents that the variation of the power is 0.25dB, it can be known that the difference between the power transmission parameter at the frequency point 4 and the power transmission parameter at the frequency point 6 is 2, that is, the difference between the Index value at the frequency point 4 and the Index value at the frequency point 6 is 2, and the difference is the power transmission parameter compensation value corresponding to the frequency point 4. When the transmitting power of the target wireless module at the frequency point 4 is calibrated, the power transmitting parameter of the target wireless module at the frequency point 4 is calibrated, and the power transmitting parameter of the frequency point 4 is the sum of the power transmitting parameter compensation value corresponding to the frequency point 4 and the power transmitting parameter of the characteristic frequency point.
Referring to fig. 8, fig. 8 is a flowchart illustrating a power calibration method of a target wireless module according to another embodiment of the present application. After step S130 is executed, the method for calibrating power of the target wireless module further includes:
and S840, writing the power transmission parameters of the characteristic frequency point and other frequency points into a nonvolatile memory of the target wireless module.
The power transmission parameters of the frequency points stored in the nonvolatile memory are used for determining the transmission power of the subsequent target wireless module at the corresponding frequency points. In an embodiment, the calibrated characteristic frequency point and the power transmission parameters of other frequency points are written into a specific area in a nonvolatile memory of a target wireless module, when the target wireless module is subsequently applied, the power transmission parameters in a specific mode are directly called from the specific area in the nonvolatile memory of the target wireless module, and at this time, the transmission power of the target wireless module at each frequency point is the power corresponding to the calibrated power transmission parameters of each frequency point.
Referring to fig. 9, fig. 9 is a block diagram of an embodiment of a wireless module according to the present application. The target wireless module 90 includes: the power calibration device comprises a radio frequency transceiving unit 91, a nonvolatile memory 92, a power supply unit 93 and the like, wherein the radio frequency transceiving unit 91 is used for receiving a control instruction provided by the power calibration device and transmitting a signal; the nonvolatile memory 92 is used for storing the power transmission parameters of the target wireless module 90 after calibration at each frequency point, and the power transmission parameters of each frequency point stored in the nonvolatile memory 92 are used for determining the transmission power of each frequency point corresponding to the subsequent target wireless module 90. The nonvolatile Memory 92 may be a Read-Only Memory (ROM) or a Flash Memory.
S850: and controlling the target wireless module to transmit the second test signal of each frequency point in the working frequency band, and acquiring the second current transmission power corresponding to each frequency point, which is obtained based on the test of the second test signal corresponding to each frequency point.
In this embodiment, the power of the second test signal at each frequency point in the working frequency band transmitted by the target wireless module is theoretically the power corresponding to the power transmission parameter at each frequency point after calibration.
S860: and judging whether the difference between the second current transmitting power of each frequency point and the target power of the target wireless module is smaller than a preset value.
S870: and if the difference corresponding to each frequency point is smaller than the preset value, determining that the target wireless module is successfully calibrated.
In one embodiment, the power transmission parameters after the frequency points are calibrated are respectively stored in a specific area in a nonvolatile memory of a target wireless module, the target wireless module calls the power transmission parameters after the frequency points are calibrated, and second test signals of the frequency points are transmitted based on the power transmission parameters after the frequency points are calibrated; the method comprises the steps of obtaining second current transmitting power corresponding to each frequency point, obtained through testing based on second testing signals corresponding to each frequency point, comparing whether the difference between the second current transmitting power of each frequency point and the target power of a target wireless module is smaller than a preset value or not, determining that the target wireless module is successfully calibrated if the difference corresponding to each frequency point is smaller than the preset value, calibrating the target wireless module as a defective product if the difference corresponding to a certain frequency point is larger than the preset value, and calibrating the target wireless module again. And the difference between the second current transmitting power of each frequency point and the target power of the target wireless module is the absolute value of the difference between the second current transmitting power of each frequency point and the target power of the target wireless module.
Specifically, in an embodiment, if the preset value is 0.5dB, that is, the difference between the second current transmission power of each frequency point and the target power of the target wireless module is within the range of 0.5dB, it is determined that the target wireless module is successfully calibrated; and if the difference between the second current transmitting power of a certain frequency point and the target power of the target wireless module is larger than 0.5dB, the target wireless module is marked as a defective product.
Referring to fig. 10, fig. 10 is a schematic diagram of a power calibration apparatus according to an embodiment of the present application. The power calibration apparatus 100 includes a memory 102 and a processor 101 coupled to each other, the memory 102 stores program instructions, and the processor 101 is configured to execute the program instructions to implement the steps in any of the power calibration method embodiments described above. In one embodiment, the power calibration apparatus 100 is a host computer including a memory 102 and a processor 101 coupled to each other.
Specifically, the processor 101 is used for controlling the memory 102 and itself to implement the steps in the power calibration method embodiment applied to the target wireless module 80. Processor 101 may also be referred to as a CPU (Central Processing Unit). The processor 101 may be an integrated circuit chip having signal processing capabilities. The Processor 101 may also be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. In addition, the processor 101 may be commonly implemented by a plurality of integrated circuit chips.
In the above embodiment, the processor 101 is configured to analyze the transmission power of the target wireless module 90 to obtain an analysis result; the analysis result includes determining a difference between the current transmission power of the target wireless module 90 and the target power to be calibrated, determining whether the difference is within a preset range, and if the difference is greater than the preset range, the processor 101 adjusts the power transmission parameter of the target wireless module 90 based on the difference, and writes the calibrated power transmission parameter into the nonvolatile memory 92 of the target wireless module 90.
Referring to fig. 11, fig. 11 is a block diagram illustrating an embodiment of a power calibration system according to the present application. The system of the present embodiment can perform the steps of the method, and the detailed description of the related contents refers to the above-mentioned method section, which is not described in detail herein.
The power calibration system 110 includes the power detector 80 and the power calibration apparatus 100 connected to each other. The power detector 80 is configured to be connected to the target wireless module 90 in a conductive manner, and configured to detect the transmission power of the target wireless module 90 and feed back the transmission power to the power calibration device 100; the power calibration apparatus 100 is the apparatus described in the previous embodiment, and the power calibration apparatus 100 is used for being communicatively connected with the target wireless module 90 to control the target wireless module 90 to transmit signals.
Specifically, in an embodiment, the power detector 80 is a wireless integrated tester, the target wireless module 90 transmits a signal controlled by the power calibration device 100, a control command of the power calibration device 100 is issued to the target wireless module 90 through a serial port, the target wireless module 90 includes a radio frequency test point, the radio frequency test point on the target wireless module 90 is connected to the power detector 80 through a test socket and a radio frequency cable in a conduction manner, and the power detector 80 tests the power of the signal currently transmitted by the target wireless module 90 and reports the test result to the power calibration device 100 through an ethernet or serial port in a wired transmission manner.
The above description is only for the purpose of illustrating embodiments of the present invention and is not intended to limit the scope of the present invention, and all modifications, equivalents, and equivalent structures or equivalent processes that can be used directly or indirectly in other related fields of technology shall be encompassed by the present invention.
Claims (10)
1. A method for calibrating power of a wireless module, the method comprising:
selecting a frequency point from the working frequency band of the target wireless module as a characteristic frequency point;
calibrating the power transmission parameters of the target wireless module at the characteristic frequency point based on the first current transmission power of the target wireless module at the characteristic frequency point;
and calibrating the power transmission parameters of the target wireless module at other frequency points by using the power transmission parameters of the characteristic frequency points.
2. The method according to claim 1, wherein the selecting a frequency point from the working frequency band of the target wireless module as a characteristic frequency point comprises:
acquiring a first frequency response curve of the target wireless module;
and selecting a frequency point from the working frequency band of the target wireless module as a characteristic frequency point based on the first frequency response curve.
3. The power calibration method according to claim 2, wherein the characteristic frequency point is a frequency point corresponding to a position with a sharp mutation or a symmetric characteristic in the first frequency response curve;
and/or, the acquiring a first frequency response curve of the target wireless module includes:
controlling at least one sample wireless module to transmit a first test signal of each frequency point of the working frequency band, and acquiring the transmission power of each sample wireless module corresponding to each frequency point, which is obtained by scanning the first test signal;
generating a second frequency response curve representing the transmitting power condition corresponding to each frequency point of each sample wireless module based on the transmitting power corresponding to each frequency point corresponding to each sample wireless module;
and obtaining the first frequency response curve by using the second frequency response curve of each sample wireless module.
4. The method for calibrating power according to claim 1, wherein the calibrating the power transmission parameters of the target wireless module at the characteristic frequency point based on the first current transmission power of the target wireless module at the characteristic frequency point comprises:
acquiring a first power difference value between the first current transmitting power and the target power of the target wireless module;
and obtaining the power transmission parameters of the target wireless module at the characteristic frequency points based on the first power difference.
5. The method according to claim 1, wherein the determining the power transmission parameters of the target wireless module at other frequency points by using the power transmission parameters of the characteristic frequency points comprises:
determining power transmission parameter compensation values between the other frequency points and the characteristic frequency points; and determining the power transmission parameters of the target wireless module at the other frequency points by using the power transmission parameter compensation values corresponding to the other frequency points and the power transmission parameters of the characteristic frequency points.
6. The method according to claim 5, wherein the determining the power transmission parameter compensation value between each of the other frequency points and the characteristic frequency point comprises:
acquiring a second power difference value between each other frequency point and the characteristic frequency point on a first frequency response curve of the target wireless module;
and determining the power transmission parameter compensation value corresponding to each other frequency point by using the second power difference value corresponding to each other frequency point.
7. The power calibration method of claim 1, further comprising:
and writing the power transmission parameters of the characteristic frequency points and other frequency points into a nonvolatile memory of the target wireless module, wherein the power transmission parameters of the frequency points stored in the nonvolatile memory are used for determining the transmission power of the frequency points corresponding to the subsequent target wireless module.
8. The method for calibrating power according to claim 7, wherein after the writing of the power transmission parameters of the characteristic frequency point and each of the other frequency points into the nonvolatile memory of the target wireless module, the method further comprises:
controlling the target wireless module to transmit a second test signal of each frequency point in the working frequency band, and acquiring second current transmission power corresponding to each frequency point, which is obtained based on the second test signal test corresponding to each frequency point;
judging whether the difference between the second current transmitting power of each frequency point and the target power of the target wireless module is smaller than a preset value or not;
and if the difference corresponding to each frequency point is smaller than the preset value, determining that the target wireless module is successfully calibrated.
9. A power calibration device, comprising a memory and a processor connected to each other, wherein,
the memory is to store program instructions;
the processor is configured to execute the program instructions to implement the power calibration method of any one of claims 1-8.
10. A power calibration system, comprising a power detector and a power calibration device connected to each other, wherein,
the power calibration apparatus as claimed in claim 9, and configured to be communicatively connected to a target wireless module to control the target wireless module to transmit a signal;
the power detector is connected with the target wireless module in a conduction mode, and is used for detecting the transmitting power of the target wireless module and feeding the transmitting power back to the power calibration equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111302073.2A CN114172593A (en) | 2021-11-04 | 2021-11-04 | Power calibration method, calibration equipment and calibration system of wireless module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111302073.2A CN114172593A (en) | 2021-11-04 | 2021-11-04 | Power calibration method, calibration equipment and calibration system of wireless module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114172593A true CN114172593A (en) | 2022-03-11 |
Family
ID=80478037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111302073.2A Pending CN114172593A (en) | 2021-11-04 | 2021-11-04 | Power calibration method, calibration equipment and calibration system of wireless module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114172593A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114884590A (en) * | 2022-07-07 | 2022-08-09 | 成都万创科技股份有限公司 | Wireless module calibration parameter extraction method and device |
| CN116667947A (en) * | 2023-07-27 | 2023-08-29 | 深圳市亿联无限科技股份有限公司 | WiFi power calibration method and system based on domain socket |
| CN117879725A (en) * | 2024-03-11 | 2024-04-12 | 深圳市必联电子有限公司 | Power calibration method and device of wireless module, electronic equipment and storage medium |
| CN117997447A (en) * | 2024-02-01 | 2024-05-07 | 中国人民解放军国防科技大学 | Radio station non-contact detection method, system, electronic equipment and storage medium |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719736A (en) * | 2005-07-19 | 2006-01-11 | 中兴通讯股份有限公司 | Method for correcting power |
| WO2010048798A1 (en) * | 2008-10-31 | 2010-05-06 | 刘建 | A method and a system for controlling the uplink transmission power, and a base station |
| CN102324991A (en) * | 2011-08-16 | 2012-01-18 | 惠州Tcl移动通信有限公司 | Method for calibrating mobile terminal to transmit power in global system for mobile communication (GSM) frequency band |
| WO2017215178A1 (en) * | 2016-06-14 | 2017-12-21 | 中兴通讯股份有限公司 | Online calibration method and device for feedback path |
| CN108199787A (en) * | 2017-12-22 | 2018-06-22 | 广东欧珀移动通信有限公司 | Transmission power adjustment method, device, terminal test system and electric terminal |
| CN108923864A (en) * | 2018-06-15 | 2018-11-30 | 惠州高盛达科技有限公司 | WiFi power calibrating method based on server statistics |
| CN109118057A (en) * | 2018-07-20 | 2019-01-01 | 西安西热电站信息技术有限公司 | A kind of Wind turbines power output evaluation method based on realtime power curve |
| CN110535539A (en) * | 2019-08-29 | 2019-12-03 | 杭州博联智能科技股份有限公司 | For the power compensating method of radio-frequency module, device, equipment and medium |
| CN110896330A (en) * | 2018-09-12 | 2020-03-20 | 广东新岸线计算机系统芯片有限公司 | Transmitting power calibration method and device suitable for multiple frequency points and multiple power points |
| CN113098635A (en) * | 2021-03-26 | 2021-07-09 | 展讯通信（上海）有限公司 | Power compensation method and device and electronic equipment |
-
2021
- 2021-11-04 CN CN202111302073.2A patent/CN114172593A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1719736A (en) * | 2005-07-19 | 2006-01-11 | 中兴通讯股份有限公司 | Method for correcting power |
| WO2010048798A1 (en) * | 2008-10-31 | 2010-05-06 | 刘建 | A method and a system for controlling the uplink transmission power, and a base station |
| CN102324991A (en) * | 2011-08-16 | 2012-01-18 | 惠州Tcl移动通信有限公司 | Method for calibrating mobile terminal to transmit power in global system for mobile communication (GSM) frequency band |
| WO2017215178A1 (en) * | 2016-06-14 | 2017-12-21 | 中兴通讯股份有限公司 | Online calibration method and device for feedback path |
| CN108199787A (en) * | 2017-12-22 | 2018-06-22 | 广东欧珀移动通信有限公司 | Transmission power adjustment method, device, terminal test system and electric terminal |
| CN108923864A (en) * | 2018-06-15 | 2018-11-30 | 惠州高盛达科技有限公司 | WiFi power calibrating method based on server statistics |
| CN109118057A (en) * | 2018-07-20 | 2019-01-01 | 西安西热电站信息技术有限公司 | A kind of Wind turbines power output evaluation method based on realtime power curve |
| CN110896330A (en) * | 2018-09-12 | 2020-03-20 | 广东新岸线计算机系统芯片有限公司 | Transmitting power calibration method and device suitable for multiple frequency points and multiple power points |
| CN110535539A (en) * | 2019-08-29 | 2019-12-03 | 杭州博联智能科技股份有限公司 | For the power compensating method of radio-frequency module, device, equipment and medium |
| CN113098635A (en) * | 2021-03-26 | 2021-07-09 | 展讯通信（上海）有限公司 | Power compensation method and device and electronic equipment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114884590A (en) * | 2022-07-07 | 2022-08-09 | 成都万创科技股份有限公司 | Wireless module calibration parameter extraction method and device |
| CN116667947A (en) * | 2023-07-27 | 2023-08-29 | 深圳市亿联无限科技股份有限公司 | WiFi power calibration method and system based on domain socket |
| CN117997447A (en) * | 2024-02-01 | 2024-05-07 | 中国人民解放军国防科技大学 | Radio station non-contact detection method, system, electronic equipment and storage medium |
| CN117879725A (en) * | 2024-03-11 | 2024-04-12 | 深圳市必联电子有限公司 | Power calibration method and device of wireless module, electronic equipment and storage medium |
| CN117879725B (en) * | 2024-03-11 | 2024-05-31 | 深圳市必联电子有限公司 | Power calibration method and device of wireless module, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114172593A (en) | Power calibration method, calibration equipment and calibration system of wireless module | |
| CN103036623B (en) | Mobile terminal power control test calibrating method and mobile terminal | |
| US8509702B2 (en) | Methods of calibrating a device under test to communicate wirelessly | |
| CN109462860B (en) | Throughput optimization method and apparatus, electronic device, and computer-readable storage medium | |
| CN111614409B (en) | Power calibration method and device | |
| CN104301978A (en) | Inner-loop power control method and system for terminal | |
| CN111257672A (en) | Line loss point inspection method and device, computer equipment and storage medium | |
| CN108833035B (en) | Isolation testing system and method and computer equipment | |
| CN106998232B (en) | Method for acquiring load pull parameter of radio frequency power amplifier | |
| WO2024041378A1 (en) | Radio frequency power calibration control method and apparatus for wireless device, and terminal device | |
| CN107592165B (en) | Method and system for testing transmission power of router | |
| CN109470939B (en) | Line loss point inspection system and method | |
| US8055205B2 (en) | Assessing the performance of radio devices | |
| CN109257124B (en) | WiFi non-signaling test method, system, computer equipment and storage medium | |
| CN109600174A (en) | Poewr control method, test device, terminal and test macro | |
| WO2020052018A1 (en) | Station startup method and apparatus, and electronic device and storage medium | |
| CN112003652A (en) | Radio frequency debugging method and device of terminal equipment and computer readable storage medium | |
| CN113038110B (en) | White balance calibration method, device, terminal equipment and storage medium | |
| CN115483990A (en) | Production test method and system of communication module, electronic equipment and storage medium | |
| TW202245500A (en) | Communication device and associated control method | |
| CN114679775B (en) | Inner loop power control performance optimization method and device | |
| CN113950135A (en) | Transmission power control method, terminal calibration method, terminal, system and storage medium | |
| CN115276841A (en) | Power correction method for wireless module | |
| US20180335934A1 (en) | Test and measurement device, test and measurement system and method for testing a device under test | |
| CN113109634B (en) | Antenna test method, device, terminal equipment, antenna test system and medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |