CN116996136B - Calibration method based on signaling control, signaling comprehensive tester and system - Google Patents
Calibration method based on signaling control, signaling comprehensive tester and system Download PDFInfo
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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
- H04B17/20—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
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Abstract
The invention discloses a calibration method based on signaling control, a signaling comprehensive tester and a system, wherein the method comprises the following steps: when the appointed working mode is a calibration mode, responding to a calibration response frame sent by the tested piece, and sending a calibration configuration frame and a calibration request frame to the tested piece so as to enable the tested piece to send a detection signal for calibration; receiving and analyzing the detection signal, and transmitting a calibration data frame according to the detection signal to calibrate the system parameters of the tested piece, wherein the calibration data frame is used for controlling the tested piece to update the system parameters according to the content of the calibration data frame; analyzing a parameter measured value of a measured piece in the detection signal, judging whether the parameter measured value is in a target calibration area, and performing calibration compensation on a system parameter of the measured piece when the parameter measured value is not in the target calibration area. The invention realizes calibration by adopting a signaling mode, and solves the defect that the calibration and measurement in the existing non-signaling mode depend on a wired communication interface.
Description
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a signaling control based calibration method, signaling comprehensive tester, and system.
Background
Currently, calibration and measurement of wireless communication products on a production line typically uses a non-signaling control scheme. As shown in fig. 1, in the conventional non-signaling mode, the transmission of the command and calibration value is completed through the data control line. The upper computer firstly controls the tested piece to transmit signals to the detection terminal through the data control line, the detection terminal carries out relevant tests after receiving the signals, the calculated parameter calibration value is sent to the upper computer through the data control line, the upper computer sends the calibration value to the tested piece through the data control line, and the tested piece updates the radio frequency parameters until the calibration is completed.
In the calibration mode, the upper computer needs to be connected with the tested piece and the detection terminal through the data control line, so that the calibration and measurement in the non-signaling mode are difficult to implement for wireless communication products lacking the peripheral control port, and the complexity of the non-signaling test is increased.
Disclosure of Invention
According to one aspect of the invention, a calibration method, a signaling comprehensive tester and a system based on signaling control are provided, the calibration and measurement are realized by adopting a wireless signaling mode, and the defect that the calibration and measurement in the existing non-signaling mode depend on a wired communication interface is overcome.
In a first aspect, the invention discloses a calibration method based on signaling control, performed by a detection terminal,
The detection terminal is connected with at least one tested piece, and interacts with the tested piece in a wireless signaling manner, wherein the wireless signaling is data transmission through a wireless data packet according to a communication standard protocol; the method comprises the following steps:
sending a work request frame to a tested piece in a signaling mode so that the tested piece enters a specified work mode; the specified operation mode comprises a calibration mode or a measurement mode;
when the appointed working mode is a calibration mode, responding to a calibration response frame sent by a tested piece, and sending a calibration configuration frame and a calibration request frame to the tested piece so as to enable the tested piece to send a detection signal for calibration;
Receiving and analyzing the detection signal, and transmitting a calibration data frame according to the detection signal to calibrate the system parameters of the tested piece, wherein the calibration data frame is used for controlling the tested piece to update the system parameters according to the content of the calibration data frame;
and transmitting a calibration data frame according to the detection signal to calibrate the system parameters of the tested piece, wherein the method comprises the following steps:
Analyzing the parameter measured value of the measured piece in the detection signal, judging whether the parameter measured value is in a target calibration area, and when the parameter measured value is not in the target calibration area, performing calibration compensation on the system parameter of the measured piece.
In some embodiments, further comprising: when the measured value of the parameter is not in the target calibration area, the system parameter of the measured piece is calibrated and compensated, in particular,
Calculating a current calibration value based on the parameter measurement value and a parameter target value when the parameter measurement value is not in a target calibration area;
Sending a calibration data frame containing the current calibration value so that the measured piece carries out compensation updating on the system parameters according to the current calibration value to obtain the latest system parameters;
a signal request frame is sent again so that the tested piece sends out a detection signal; the detection signal uses the latest system parameters;
Repeating the steps until the latest system parameter measured value is in the target calibration area, and sending out a calibration end frame to finish calibration.
In some embodiments, the work request frame further includes a calibration request frame and a calibration end frame, where the calibration request frame, the calibration configuration frame, the calibration data frame and the calibration end frame are calibration control frames based on a wireless communication standard protocol, and are transmitted through wireless signaling;
The calibration request frame is used for establishing calibration connection between the detection terminal and the tested piece;
The calibration configuration frame is used for controlling the tested piece to set system parameters;
the calibration data frame is used for transmitting a current calibration value;
the calibration end frame is used to exit the calibration mode.
In some embodiments, the method further comprises the step of receiving a calibration request frame, a calibration configuration frame, a calibration data frame and a calibration end frame, wherein the calibration request frame, the calibration configuration frame, the calibration data frame and the calibration end frame comprise frame heads, calibration control data and frame tails; the calibration control data is used to account for frame type and calibration data.
In some embodiments, when the tested piece includes a bluetooth communication module, writing the calibration control data into an LMP frame based on a bluetooth standard; the LMP frame comprises a frame head, calibration control data and a frame tail, wherein the frame head is used for describing the type of a packet and the length of the calibration control data, and the calibration control data comprises an operation code, a system parameter and a current calibration value.
In some embodiments, when the detection terminal receives a plurality of detection signals at the same time, determining a detected piece sending the detection signals through a transmission source test, and measuring system parameters of the detected piece according to the detection signals or transmitting a calibration data frame to calibrate the system parameters of the detected piece.
In some embodiments, the method further comprises switching between the calibration mode and the measurement mode by:
Transmitting a calibration end frame to a measured piece so that the measured piece receives the calibration end frame, exiting a calibration mode and entering a measurement mode;
When the designated working mode is a measurement mode, responding to a response frame sent by the measured piece, sending a measurement configuration frame to the measured piece, so that the measured piece sends the response frame after receiving the measurement configuration frame;
Transmitting a signal request frame to a measured piece so that the measured piece receives the signal request frame and transmits a signal to be measured to the detection terminal; the signal to be measured comprises a parameter measurement.
In some embodiments, the system further comprises an upper computer, wherein the detection terminal is a signaling comprehensive tester, and the upper computer is connected with the signaling comprehensive tester in a wired or wireless manner; the upper computer is used for storing or displaying system parameters; the system parameters include key parameters that control power or frequency; the parameter measurements include transmit power strength, receive power strength, frequency, modulation rate, or packet length.
The invention discloses a signaling comprehensive tester, which comprises a main control unit, a signaling interaction unit, a calibration unit, a signal measurement unit, a radio frequency signal receiving and transmitting unit and a communication interface, wherein the main control unit is used for receiving and transmitting signals of the signaling comprehensive tester;
The main control unit is used for controlling the dispatching of the signaling interaction unit, the calibration unit and the signal measurement unit;
the calibration unit is used for calculating a current calibration value according to the detection signal of the measured piece;
the signal measuring unit is used for acquiring system parameters according to the detection signals of the detected piece;
The signaling interaction unit is used for outputting the control instruction issued by the main control unit or the current calibration value of the calibration unit as wireless signaling content;
The radio frequency signal receiving and transmitting unit is used for receiving the detection signal of the detected piece or transmitting the wireless signal output by the signaling interaction unit;
The communication interface is used for communicating with an upper computer and outputting a control instruction, a calibration result or a measurement result.
The invention discloses a calibration system based on signaling control, which is characterized by comprising a detection terminal and a tested piece, wherein the detection terminal is at least connected with one tested piece, and the detection terminal and the tested piece perform data transmission through wireless signaling; the wireless signaling is data transmission through wireless data packets according to a communication standard protocol;
the detection terminal sends a work request frame to the tested piece, and the tested piece enters a designated work mode and returns a response frame after receiving the request frame; the specified working modes comprise a calibration mode and a measurement mode;
when the appointed working mode is a calibration mode, the detection terminal sends a calibration configuration frame to the tested piece, the tested piece receives the calibration configuration frame, determines calibrated system parameters and returns a response frame;
the detection terminal responds to the response frame and sends a calibration request frame to the tested piece, and the tested piece is controlled to send a detection signal of the system parameter to the detection terminal according to the calibration request frame;
the detection terminal receives and analyzes the detection signal, and sends a calibration data frame to the detected piece according to the detection signal to calibrate the system parameters of the detected piece; and the measured piece receives the calibration data frame and updates system parameters according to the content of the calibration data frame.
The application discloses a calibration method, a signaling comprehensive tester and a system based on signaling control, which adopt a wireless signaling mode to control a tested piece to calibrate and measure, the tested piece and a detection terminal do not need to be physically connected with an antenna of the tested piece through a data control line and transmit a calibration value, and data transmission is carried out through a wireless data packet in the calibration and measurement processes without depending on physical connection. After calibration or measurement is completed, the working mode of the measured piece is switched only through the working request frame, the test or the test environment is not required to be interrupted, the measured piece is not required to be manually moved from the calibration station to the measurement station to complete the measurement work, the continuity of the production test process is ensured, and the measurement and calibration cost is saved, so that the test efficiency is improved. Meanwhile, the detection terminal and the tested pieces are developed based on communication standard protocols, and are controlled in a wireless signaling mode, the detection terminal can calibrate or measure a plurality of tested pieces at the same time, and can be compatible with radio frequency chips of different manufacturers at the same time, so that cross-chip platform compatibility of wireless calibration is realized.
Drawings
FIG. 1 is a block diagram of a calibration system in a conventional non-signaling mode;
Fig. 2 is a block diagram of a detection terminal, a measured piece and an upper computer in a calibration system based on signaling control according to an embodiment of the present invention;
fig. 3 is a block diagram of a signaling comprehensive tester, a tested piece and an upper computer in a calibration system based on signaling control according to an embodiment of the present invention;
fig. 4 is a block diagram of a signaling comprehensive tester according to an embodiment of the present invention;
Fig. 5 is a schematic flow chart of a signaling comprehensive tester in a calibration mode in a calibration method based on signaling control according to an embodiment of the present invention;
Fig. 6 is a schematic flow chart of a signaling comprehensive tester in a measurement mode in a calibration method based on signaling control according to an embodiment of the present invention;
Fig. 7 is a schematic flow chart of switching between a calibration mode and a measurement mode in a calibration method based on signaling control according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a signaling comprehensive tester connected with a plurality of tested pieces in a calibration method based on signaling control according to an embodiment of the present invention;
Fig. 9 is a schematic diagram of a calibration control frame format in a calibration method based on signaling control according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of another calibration control frame format in a calibration method based on signaling control according to an embodiment of the present invention;
Fig. 11 is a schematic diagram of another calibration control frame format in a calibration method based on signaling control according to an embodiment of the present invention.
In the figure: 10. signaling comprehensive tester; 20. a measured piece; 30. an upper computer; 101. a main control unit; 102. a calibration unit; 103. a signaling interaction unit; 104. a radio frequency signal receiving and transmitting unit; 105. a signal measurement unit; 106. a communication interface.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the element defined by the phrase "comprising one … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element, and furthermore, elements having the same name in different embodiments of the application may have the same meaning or may have different meanings, the particular meaning of which is to be determined by its interpretation in this particular embodiment or by further combining the context of this particular embodiment.
It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination" depending on the context. Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" specify the presence of stated features, steps, operations, elements, components, items, and/or groups, but do not preclude the presence, presence or addition of one or more other features, steps, operations, elements, components, items, types, and/or groups. The terms "or", "and/or", "including at least one of", and the like, as used herein, may be construed as inclusive, or mean any one or any combination. An exception to this definition will occur only when a combination of elements, functions, steps or operations are in some way inherently mutually exclusive.
It should be understood that, although the steps in the flowcharts in the embodiments of the present application are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily occurring in sequence, but may be performed alternately or alternately with other steps or at least a portion of the other steps or stages.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The application provides a calibration method based on signaling control, a signaling comprehensive tester 10 and a system, which realize calibration and measurement by adopting a wireless signaling mode and solve the defect that the calibration and measurement in the existing non-signaling mode depend on a wired communication interface.
Example 1
The method is applied to a detection terminal, wherein the detection terminal comprises a signaling comprehensive tester 10 or other terminals supporting wireless signaling transmission, and the tested piece 20 refers to a radio frequency chip, a sensor or an intelligent terminal with wireless communication functions such as Bluetooth, wi-Fi and the like, such as wearable equipment with Bluetooth functions, intelligent terminals such as mobile phones and the like, or mobile phones, flat panels or mobile terminals with Wi-Fi functions and the like. The detection terminal and the tested piece are developed based on communication standard protocol standards, the tested piece is controlled to be packaged and calibrated through the wireless data package without depending on a wired communication interface, and the scheme can be compatible with radio frequency chips of different manufacturers to realize cross-chip platform compatibility of wireless calibration. In this embodiment, the detection terminal is a signaling comprehensive tester, and connection, calibration and measurement with the tested piece can be realized through wireless signaling.
Fig. 2 is a schematic diagram of connection relation between a detection terminal and a detected piece, and between the detection terminal and an upper computer. In the present application, as shown in fig. 3, the detection terminal adopts the signaling comprehensive tester 10, and the signaling comprehensive tester 10 uses a conductive connection or an air interface connection with the tested piece to perform data transmission through wireless signaling, that is, performs data transmission through wireless data packets. The interaction of data between the signaling comprehensive tester and the tested piece is realized based on wireless signaling, calibration and measurement are completed in the receiving and transmitting process of wireless data packets, and the signaling comprehensive tester has obvious difference from the traditional non-signaling in transmitting instructions and calibration values through a wired data control cable. The signaling comprehensive tester supports two test modes of air interface and conduction, when the tested piece lacks an antenna, the signaling comprehensive tester and the tested piece can establish physical connection through a radio frequency wire, and calibration and measurement are completed in a conduction test environment; when the tested piece is provided with an antenna, the signaling comprehensive tester is in wireless connection with the tested piece. The transfer of instructions and calibration values is accomplished by wireless signaling, either in air-interface or conductive modes. Meanwhile, the signaling comprehensive tester is connected with an upper computer 30 in a wired or wireless way through a data control wire such as a USB data wire or a network wire, and the upper computer 30 is a computer and is used for data display or data storage.
The signaling comprehensive tester has a plurality of working modes under normal operation, including a calibration mode and a measurement mode. The calibration mode is used for calibrating system parameters of the measured piece and mainly comprises the steps of obtaining parameter measurement values and compensating calibration values. The system parameters include key parameters that control power or frequency; the parameter measurements include transmit power strength, receive power strength, frequency, modulation rate, or packet length. When the signaling comprehensive tester is in a calibration mode, the tested piece is controlled to enter the calibration mode through wireless signaling, system parameter configuration is completed, a detection signal is transmitted, a compensation calibration value is updated, and when the parameter measurement value meets a target calibration condition, the calibration is regarded as standard, and calibration test is completed.
The measurement mode is used for measuring the system parameters of the measured piece. When the signaling comprehensive tester is in a measurement mode, the signaling comprehensive tester controls a tested piece to complete system parameter configuration and transmit detection signals through wireless signaling, the signaling comprehensive tester acquires parameter measurement values after receiving the detection signals, and an analysis result is uploaded to an upper computer for data display or local storage to complete measurement.
The signaling comprehensive tester realizes calibration and measurement in a wireless signaling control mode without depending on an upper computer, and can only be realized by the signaling comprehensive tester and a tested piece, so that the effects of saving data control cables, radio frequency cables, time and labor cost are realized, and the problems of high production and test cost, low efficiency, complex operation and the like of the conventional non-signaling control method are solved.
Specifically, as shown in fig. 4, the signaling comprehensive tester includes a main control unit, a signaling interaction unit, a calibration unit, a signal measurement unit, a radio frequency signal transceiver unit, and a communication interface. The main control unit is used for processing detection signals sent by the detected piece, controlling the signaling interaction unit, the signal measurement unit and the scheduling of the calibration unit, and switching the calibration mode and the measurement mode; the calibration unit is used for calculating a current calibration value according to the detection signal of the measured piece; the signal measuring unit is used for acquiring system parameters according to the detection signals of the detected piece; the signaling interaction unit is used for outputting the control instruction issued by the main control unit or the current calibration value of the calibration unit as wireless signaling content; the radio frequency signal receiving and transmitting unit is used for receiving the detection signal of the detected piece or transmitting the wireless signal output by the signaling interaction unit; the communication interface is used for communicating with an upper computer and outputting a control instruction, a calibration result or a measurement result.
The radio frequency signal receiving and transmitting unit comprises a radio frequency transceiver, a radio frequency port, an antenna, a radio frequency wire and the like, and is connected with the tested piece in a conducting manner or an air interface manner. In the application, the air interface connection is adopted, and cable control is not needed, so that the continuity of the production test process is ensured, and the measurement and calibration cost is saved.
The master control unit 101 may be a central processing unit or an Application Specific Integrated Circuit (ASIC), the calibration unit 102 may be a micro processor or a computer readable storage medium, the signaling interaction unit 103 may be an off-the-shelf programmable gate array (FPGA) or other programmable logic device, the signal measurement unit 105 may be a digital signal processor or other integrated circuit with signal processing capability, the communication interface 106 may be one or more USB interfaces, network interfaces, etc., and the radio frequency port, antenna, radio frequency line may be one or more, and the invention is not limited in particular.
Example two
A calibration method based on signaling control is applied to the detection terminal according to the first embodiment, and based on wireless signaling control, a tested piece is calibrated through the following steps:
sending a work request frame to a tested piece in a signaling mode so that the tested piece enters a specified work mode; the specified operation mode comprises a calibration mode or a measurement mode;
when the appointed working mode is a calibration mode, responding to a calibration response frame sent by a tested piece, and sending a calibration configuration frame and a calibration request frame to the tested piece so as to enable the tested piece to send a detection signal for calibration;
and receiving and analyzing the detection signal, and transmitting a calibration data frame according to the detection signal to calibrate the system parameters of the tested piece, wherein the calibration data frame is used for controlling the tested piece to update the system parameters according to the content of the calibration data frame.
And transmitting a calibration data frame according to the detection signal to calibrate the system parameters of the tested piece, wherein the method comprises the following steps:
Analyzing the parameter measured value of the measured piece in the detection signal, judging whether the parameter measured value is in a target calibration area, and when the parameter measured value is not in the target calibration area, performing calibration compensation on the system parameter of the measured piece.
When the measured piece needs to be calibrated, the work request frame is a calibration request frame. And the tested piece enters a calibration mode after receiving the calibration request frame, and returns a response frame to the signaling comprehensive tester. After receiving the response frame, the signaling comprehensive tester sends out a calibration configuration frame to the tested piece. And the tested piece performs calibration configuration on the system parameters to be calibrated according to the calibration configuration frame, and returns a response frame. And after receiving the response frame, the signaling comprehensive tester sends out a signal request frame so as to control the tested piece to send out a detection signal of the system parameter. After receiving the signal request frame, the tested piece sends out a detection signal to the signaling comprehensive tester. And the signaling comprehensive tester receives and analyzes the detection signal, sends a calibration data frame to the tested piece according to the detection signal, and updates system parameters according to the content of the calibration data frame.
When the parameter measurement is not within the target calibration area, calibration compensation is performed on the system parameters, specifically,
Calculating a current calibration value based on the parameter measurement value and a parameter target value when the parameter measurement value is not in a target calibration area;
Sending a calibration data frame containing the current calibration value so that the measured piece carries out compensation updating on the system parameters according to the current calibration value to obtain the latest system parameters;
a signal request frame is sent again so that the tested piece sends out a detection signal; the detection signal uses the latest system parameters;
Repeating the steps until the latest system parameter measured value is in the target calibration area, and sending out a calibration end frame to finish calibration.
By the method, measurement, calibration and compensation are realized in a signaling mode, and an upper computer is not required to be relied on in the whole process. Compared with the traditional calibration mode that the upper computer is required to be connected with the comprehensive tester and the tested piece in a wired mode, the tested piece and the detection terminal do not need to be physically connected with the antenna of the tested piece through a data control line and transmit a calibration value, and data transmission is carried out through a wireless data packet in the calibration and measurement process without depending on physical connection. After calibration is completed, the working mode of the measured piece is switched through the working request frame, the test or the test environment is not required to be interrupted, the measured piece is not required to be manually moved from the calibration station to the measurement station to complete the measurement work, the continuity of the production test process is ensured, the measurement and calibration cost is saved, and the test efficiency is improved.
As shown in fig. 5, in the calibration mode, the working process of each unit in the signaling comprehensive tester is as follows:
step S501, the master control unit 101 controls the signaling interaction unit 103 to send a calibration request frame to the measured piece 20, and controls the measured piece 20 to enter a calibration mode;
step S502: the main control unit 101 controls the signaling interaction unit 103 to send a calibration configuration frame to the tested piece 20, so that the tested piece 20 sets system parameters to be calibrated according to the calibration configuration frame;
Step S503: the main control unit 101 controls the signaling interaction unit 103 to send a calibration request frame to the tested piece 20 so as to control the tested piece 20 to send out a detection signal;
Step S504: the signal measurement unit 105 analyzes the detection signal sent by the measured piece 20, acquires the parameter measurement value of the measured piece, and forwards the acquired parameter measurement value to the main control unit;
Step S505: the main control unit 101 judges whether the parameter measurement value is within the target calibration area;
Step S506: the main control unit 101 forwards the parameter measurement value to the calibration unit 102;
Step S507: the calibration unit 102 calculates a current calibration value based on the parameter measurement value and the parameter target value, and forwards the current calibration value to the signaling interaction unit 103;
step S508: the signaling interaction unit 103 writes the current calibration value into calibration data frame information and sends the calibration data frame information to the measured piece 20;
step S509: the measured piece 20 receives the calibration data frame, updates the current calibration value and adjusts the radio frequency configuration of the system parameters, and waits for the next instruction;
And repeating S503-S509 until the system parameter belongs to the target calibration area, and completing calibration.
The system parameters include, but are not limited to, parameters of power and frequency waiting for calibration, a desired interval is set based on the system parameters, and when the system parameters belong to the desired interval, the current signal calibration is considered to reach the standard, and the calibration test is completed. After the signaling comprehensive tester finishes the calibration of a certain system parameter, the steps S502 to S509 can be directly repeated without exiting the calibration mode, the calibration of other parameters is finished, and the complexity of the calibration is reduced.
When the measured piece needs to be measured, the work request frame is a measurement request frame. And the measured piece enters a measurement mode after receiving the measurement request frame, and returns a response frame to the signaling comprehensive tester. After receiving the response frame, the signaling comprehensive tester sends out a measurement configuration frame to the tested piece. And the tested piece carries out system parameter configuration according to the measurement configuration frame and returns a response frame. And after receiving the response frame, the signaling comprehensive tester sends out a signal request frame so as to control the tested piece to send out a detection signal of the system parameter. After receiving the signal request frame, the tested piece sends out a detection signal to the signaling comprehensive tester. And the signaling comprehensive tester receives and analyzes the detection signals to obtain parameter measurement values.
As shown in fig. 6, in this measurement mode, each unit of the signaling comprehensive tester operates as follows:
step S601: the main control unit 101 controls the signaling interaction unit 103 to send a measurement configuration frame to the measured piece 20, and sets the system parameter configuration to be measured;
step S602: the main control unit 101 controls the signaling interaction unit 103 to send a signal request frame to the measured piece 20, and controls the measured piece 20 to send out a signal to be measured;
step S603: the signal measurement unit 105 analyzes the signal to be measured sent by the measured piece 20 and forwards the obtained parameter measurement value to the main control unit 101;
after the measurement is completed, the main control unit 101 may store the measurement result locally or upload the measurement result to an upper computer for data display through the communication interface 106.
Specifically, the measurable system parameters include packet type, frequency bin, modulation rate, etc. If the tested piece 20 has finished packaging and has no wireless communication product with a peripheral communication interface, the connection mode between the radio frequency signal transceiver unit 104 and the tested piece 20 is preferably air-interface connection, so that the tested piece can be directly measured without unpacking, the measurement efficiency is improved, and the time cost and the labor cost of measurement are saved.
The configuration to be measured for setting system parameters and the control of the tested piece 20 to send out the detection signals are all completed based on signaling control, the measurement process is close to the real wireless data packet interaction process, and the flexibility of the test and the accuracy of the measurement result are improved.
The signaling comprehensive tester realizes the switching between a calibration mode and a measurement mode by the following steps:
Transmitting a calibration end frame to a measured piece so that the measured piece receives the calibration end frame, exiting a calibration mode and entering a measurement mode;
When the designated working mode is a measurement mode, responding to a response frame sent by the measured piece, sending a measurement configuration frame to the measured piece, so that the measured piece sends the response frame after receiving the measurement configuration frame;
Transmitting a signal request frame to a measured piece so that the measured piece receives the signal request frame and transmits a signal to be measured to the detection terminal; the signal to be measured comprises a parameter measurement.
As shown in fig. 7, the signaling comprehensive tester 10 and the tested piece 20 switch between the calibration mode and the measurement mode by the following method:
Step S701, the signaling comprehensive tester 10 sends a calibration end frame to the tested piece 20;
Step S702: the tested piece 20 receives the calibration end frame, exits the calibration mode to enter the measurement mode, and sends a response frame to the signaling comprehensive tester 10;
Step S703: the signaling comprehensive tester 10 sends a measurement configuration frame to the tested piece 20;
step S704: the measured piece 20 receives the measurement configuration frame and sends a response frame to the signaling comprehensive tester 10;
step S705: the signaling comprehensive tester 10 sends a signal request frame to the tested piece 20;
Step S706: the measured piece 20 receives the signal request frame and sends a signal to be measured to the signaling comprehensive tester 10, wherein the signal to be measured comprises a parameter measurement value;
The signaling comprehensive tester analyzes the signal to be tested sent by the tested piece 20 to obtain a parameter measurement value.
It should be noted that, in the calibration mode or the measurement mode, the reply frame replies with a timeout or packet loss, and the request is considered invalid, and the signaling comprehensive tester 10 will resend the corresponding request frame.
The signaling comprehensive tester 10 has the functions of calibration and measurement, so that the trouble that the calibration and measurement are carried out by two work stations is avoided, the instrument is saved, and the testing cost is reduced. The calibration end frame, the measurement configuration frame and the signal request frame are all sent to the tested piece 20 in a wireless signaling mode, the tested piece 20 is controlled to switch the test mode, the system parameter configuration is completed, the signal to be measured is transmitted, the continuity of production test is ensured, and the production test efficiency is further improved.
More, the method can also simultaneously calibrate and measure a plurality of measured pieces. As shown in fig. 8, the signaling comprehensive tester can be connected with a plurality of tested pieces at the same time, and can control the tested pieces at the same time in a wireless signaling manner. The number of the measured pieces is not limited herein, but is not limited to two.
When the signaling comprehensive tester receives a plurality of detection signals at the same time, a tested piece sending the detection signals is determined through the test of the emission source, and the tested piece is measured or calibrated for system parameters according to the detection signals.
When calibration is needed, firstly, a tested piece sending out the detection signal is determined through a test of a transmitting source, a current calibration value is calculated, then the current calibration value is sent to the tested piece corresponding to the transmitting source in a wireless signaling mode, and the latest system parameters of the tested piece are controlled until the latest system parameter measurement value is in a target calibration area, so that calibration of a plurality of tested pieces is completed.
When the measured parts are required to be measured, the measured parts sending the detection signals are determined through the test of the emission source, the radio frequency performance is analyzed, and then the emission source is used for classifying the system parameters of each measured part, such as the analysis result of the radio frequency index, are respectively stored locally or uploaded to an upper computer, so that the measurement of a plurality of measured parts is completed.
The emission source test comprises a series of tests such as radio frequency index analysis, MAC address analysis and the like, such as a power calculation test, a frequency offset calculation test, source address and target address analysis and the like.
In a specific implementation, the radio frequency signal transceiver unit of the signaling comprehensive tester can open one or more radio frequency ports to the outside and is provided with a single antenna or a plurality of antennas. In the calibration and measurement process for Multiple measured pieces, the signaling comprehensive tester can adopt a single antenna, and sequentially receive and process signals to be calibrated or measured sent by different measured pieces through presetting the sequence of the calibration or measurement of the measured pieces, so as to complete the calibration or measurement of the Multiple measured pieces, or can adopt a mode of Multiple-Input Multiple-Output (MIMO), and simultaneously receive and process the signals to be calibrated or measured of the Multiple measured pieces, so as to complete the calibration or measurement of the Multiple measured pieces.
Example III
In the first embodiment and the second embodiment, the signaling comprehensive tester and the tested piece perform data transmission through wireless signaling, so that the efficiency of calibration and measurement is improved, and the cost of data control cables such as USB data lines and network cables and manpower in the production test process is saved.
The system comprises a work request frame, a configuration frame, a calibration data frame and the like, wherein the work request frame comprises a calibration request frame and a calibration end frame; the configuration frames comprise a calibration configuration frame and a measurement configuration frame, the calibration request frame, the calibration configuration frame, the calibration data frame and the calibration ending frame are collectively called as a calibration control frame, and the calibration control frame is based on a wireless communication standard protocol and is transmitted through wireless signaling and used for completing wireless signaling calibration test and switching of the working modes of the tested piece.
The calibration request frame is used for establishing calibration connection between the detection terminal and the tested piece; the calibration configuration frame is used for controlling the measured piece to set the system parameters to be calibrated; the measurement configuration frame is used for controlling the measured piece to set the measured system parameters; the calibration data frame is used for transmitting a current calibration value; the calibration end frame is used to exit the calibration mode.
As shown in fig. 9, all of the calibration request frame, the calibration configuration frame, the calibration data frame, and the calibration end frame described above include a frame header, calibration control data, and a frame tail. The frame header is used for frame delimitation, symbol synchronization, DC offset compensation, description packet type, effective length of calibration control data and the like; the calibration control data is used to describe the type of calibration control frame and other calibration data; the end of frame is used to populate the verification information. The calibration request frame, the calibration configuration frame, the calibration data frame and the calibration end frame differ mainly in the calibration control data portion.
It should be noted that, the transmission of the frame in the calibration and the measurement process is indiscriminate, the parameter configuration frame and the signal request frame mentioned in the measurement process, including the signal request frame in the calibration process, are all existing in the prior art, and the calibration control frames such as the calibration request frame, the calibration configuration frame, the calibration data frame, the calibration end frame and the like are all developed based on the wireless communication standard protocol, and conform to the standard specification of the wireless communication protocol.
When the tested piece includes a bluetooth communication module, as shown in fig. 10, an LMP (LINK MANAGER Protocol) frame based on the bluetooth standard is modified, and the calibration control data is written into the LMP frame based on the bluetooth standard, so as to implement wireless signaling calibration.
In the LMP calibration control frame, the frame header comprises an access code and header information, wherein the access code is used for frame delimitation, symbol synchronization and DC offset compensation, and the header information is used for describing the packet type, the effective length of the calibration control data and the like; the calibration control data comprises an operation code, a system parameter and a calibration value, wherein the operation code is used for describing the type of a calibration control frame, and the target calibration value is used for describing the type of the current system parameter; the end of frame is used to populate some of the verification information.
When the tested piece receives the wireless data packet, firstly, frame delimitation, symbol synchronization and direct current offset compensation are carried out through the access code to ensure the correct analysis of the follow-up bit information, then the operation code is used for identifying the category of the data frame, the parameter information is obtained through the system parameter, and finally, the calibration value is read to update the calibration data, so that the calibration is completed.
The operation code, the system parameter, and the calibration value are all composed of one or more bits, and different bit information may represent different data information, for example, the operation code 1011010 or 1011111 may indicate that the control frame is a calibration data frame or a calibration configuration frame, and the system parameter 01 or 11 may indicate that the control frame is used for power or frequency calibration.
As shown in fig. 11, the calibration control frame may be further applied to other wireless communication standards, for example, in the ieee802.11a protocol, the frame header of the calibration control frame may be a short training field, a long training field, a signaling field, and a service field; the calibration control data may be a data field; the end of the frame may be the tail and padding.
In the embodiment, from the perspective of protocol control, calibration control information is transmitted through a calibration control frame to finish calibration, so that radio frequency chips of different manufacturers can be compatible, and cross-chip platform compatibility of wireless calibration is realized.
Example IV
Based on the same inventive concept, the application also provides a calibration system based on signaling control, which comprises a detection terminal and a tested piece, wherein the detection terminal is at least connected with one tested piece, and the detection terminal and the tested piece perform data transmission through wireless signaling; the wireless signaling is data transmission through wireless data packets according to a communication standard protocol;
the detection terminal sends a work request frame to the tested piece, and the tested piece enters a designated work mode and returns a response frame after receiving the request frame; the specified working modes comprise a calibration mode and a measurement mode;
when the appointed working mode is a calibration mode, the detection terminal sends a calibration configuration frame to the tested piece, the tested piece receives the calibration configuration frame, determines calibrated system parameters and returns a response frame;
the detection terminal responds to the response frame and sends a calibration request frame to the tested piece, and the tested piece is controlled to send a detection signal of the system parameter to the detection terminal according to the calibration request frame;
the detection terminal receives and analyzes the detection signal, and sends a calibration data frame to the detected piece according to the detection signal to calibrate the system parameters of the detected piece; and the measured piece receives the calibration data frame and updates system parameters according to the content of the calibration data frame.
The specific implementation process of the system is the same as that of the above embodiment, and will not be described here again.
The application provides a calibration method, a signaling comprehensive tester and a system based on signaling control, which adopt a wireless signaling mode to control a tested piece to calibrate and measure, the tested piece and a detection terminal do not need to be physically connected with an antenna of the tested piece through a data control line and transmit a calibration value, and data transmission is carried out through a wireless data packet in the calibration and measurement processes without depending on physical connection. After calibration or measurement is completed, the working mode of the measured piece is switched only through the working request frame, the test or the test environment is not required to be interrupted, the measured piece is not required to be manually moved from the calibration station to the measurement station to complete the measurement work, the continuity of the production test process is ensured, and the measurement and calibration cost is saved, so that the test efficiency is improved. Meanwhile, the detection terminal and the detected pieces are developed based on the wireless communication protocol standard, and are controlled in a wireless signaling mode, the detection terminal can calibrate or measure a plurality of detected pieces at the same time, and can be compatible with radio frequency chips of different manufacturers at the same time, so that the cross-chip platform compatibility of wireless calibration is realized.
Based on the same inventive idea, the application also provides an apparatus, which may comprise: a memory storing executable program code;
a processor coupled to the memory;
A transceiver for communicating with other devices or a communication network, receiving or transmitting network messages;
and a bus for connecting the memory, the processor and the transceiver for internal communication.
The transceiver receives the message transmitted from the network, and transmits the message to the processor through the bus, the processor calls the executable program code stored in the memory through the bus to process, and transmits the processing result to the transceiver through the bus to send, thereby realizing the method provided by the second embodiment of the application.
Embodiments of the present application also provide a non-transitory machine-readable storage medium having stored thereon an executable program which, when executed by a processor, causes the processor to perform the method as provided in the second embodiment above.
The invention discloses a computer readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute the described calibration method based on signaling control.
The present invention discloses a computer program product comprising a non-transitory computer readable storage medium storing a computer program and operable to cause a computer to perform a described method of calibration based on signaling control.
The embodiments described above are illustrative only, and the modules illustrated as separate components may or may not be physically separate, and components shown as modules may or may not be physical modules, may be located in one place, or may be distributed over multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above detailed description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course by means of hardware. Based on such understanding, the foregoing technical solutions may be embodied essentially or in part in the form of a software product that may be stored in a computer-readable storage medium including Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), programmable Read-Only Memory (Programmable Read-Only Memory, PROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), one-time programmable Read-Only Memory (OTPROM), electrically erasable programmable Read-Only Memory (EEPROM), compact disc Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM) or other optical disc Memory, magnetic disc Memory, tape Memory, or any other medium that can be used for computer-readable carrying or storing data.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (10)
1. The calibration method based on the signaling control is characterized by being executed by a detection terminal, wherein the detection terminal is at least connected with one tested piece, the detection terminal and the tested piece interact in a wireless signaling mode, and the wireless signaling is data transmission through a wireless data packet according to a communication standard protocol; the method comprises the following steps:
Transmitting a calibration request frame to a measured piece by using a wireless signaling, so that the measured piece returns a response frame after receiving the calibration request frame, and entering a calibration mode; the calibration mode is used for calibrating system parameters of the measured piece, and comprises the steps of obtaining a parameter measurement value and a compensation calibration value, completing system parameter configuration, transmitting a detection signal and updating the compensation calibration value, and when the parameter measurement value meets a target calibration condition, the calibration is considered to be up to standard, and a calibration test is completed; the system parameters include control power parameters and/or frequency parameters; the parameter measurement value comprises a transmitting power intensity, a receiving power intensity, a frequency, a modulation rate or a packet length;
When entering a calibration mode, responding to a calibration response frame sent by a tested piece, sending a calibration configuration frame and a signal request frame to the tested piece so that the tested piece sends a detection signal for calibration;
Receiving and analyzing the detection signal, and transmitting a calibration data frame according to the detection signal to calibrate the system parameters of the tested piece, wherein the calibration data frame is used for controlling the tested piece to update the system parameters according to the content of the calibration data frame;
and transmitting a calibration data frame according to the detection signal to calibrate the system parameters of the tested piece, wherein the method comprises the following steps:
Analyzing a parameter measured value of a measured piece in the detection signal, judging whether the parameter measured value is in a target calibration area, and performing calibration compensation on a system parameter of the measured piece when the parameter measured value is not in the target calibration area;
When the measured piece is required to be measured, a measurement request frame is sent to the measured piece through wireless signaling, so that the measured piece returns a response frame after receiving the measurement request frame, and a measurement mode is entered; the measurement mode is used for measuring system parameters of the measured piece, controlling the measured piece to complete system parameter configuration and transmit signals to be measured, acquiring parameter measurement values after receiving the signals to be measured, uploading analysis results to an upper computer for data display or storing the analysis results to a local place, and completing measurement.
2. The signaling control-based calibration method of claim 1, wherein when the parameter measurement is not within the target calibration area, performing calibration compensation on the system parameter of the measured part, further comprising:
calculating a current calibration value based on the parameter measurement value and a parameter target value when the parameter measurement value is not in a target calibration area;
Sending a calibration data frame containing the current calibration value so that the measured piece carries out compensation updating on the system parameters according to the current calibration value to obtain the latest system parameters;
a signal request frame is sent again so that the tested piece sends out a detection signal; the detection signal uses the latest system parameters;
Repeating the steps until the latest system parameter measured value is in the target calibration area, and sending out a calibration end frame to finish calibration.
3. The method according to claim 2, wherein the calibration request frame, the calibration configuration frame, the calibration data frame and the calibration end frame are all calibration control frames based on a wireless communication standard protocol, and are transmitted through wireless signaling;
The calibration request frame is used for establishing calibration connection between the detection terminal and the tested piece;
The calibration configuration frame is used for controlling the tested piece to set system parameters;
the calibration data frame is used for transmitting a current calibration value;
the calibration end frame is used to exit the calibration mode.
4. A method of calibrating based on signaling control according to claim 3, wherein the calibration request frame, the calibration configuration frame, the calibration data frame and the calibration end frame each comprise a frame header, calibration control data and a frame tail; the calibration control data is used to account for frame type and calibration data.
5. The signaling control-based calibration method of claim 4, wherein when the part under test comprises a bluetooth communication module, the calibration control data is written into an LMP frame based on a bluetooth standard; the LMP frame comprises a frame head, calibration control data and a frame tail, wherein the frame head is used for describing the type of a packet and the length of the calibration control data, and the calibration control data comprises an operation code, a system parameter and a current calibration value.
6. The method according to claim 1, wherein when the detection terminal receives a plurality of detection signals or signals to be measured simultaneously, the detection terminal determines a measured object sending the detection signals through a test of a transmission source, measures system parameters of the measured object according to the signals to be measured, or calibrates the system parameters of the measured object according to the transmission of calibration data frames of the detection signals.
7. A method of calibration based on signalling control according to claim 3, characterized in that the switching between the calibration mode and the measurement mode is achieved by:
Transmitting a calibration end frame to a measured piece so that the measured piece receives the calibration end frame, exiting a calibration mode and entering a measurement mode;
When entering a measurement mode, responding to a response frame sent by a measured piece, and sending a measurement configuration frame to the measured piece so that the measured piece sends the response frame after receiving the measurement configuration frame;
Transmitting a signal request frame to a measured piece so that the measured piece receives the signal request frame and transmits a signal to be measured to the detection terminal; the signal to be measured comprises a parameter measurement.
8. The calibration method based on signaling control according to claim 1, wherein the detection terminal is a signaling comprehensive tester, and the signaling comprehensive tester is connected with an upper computer in a wired or wireless manner; the upper computer is used for storing or displaying system parameters.
9. A signaling comprehensive tester for implementing the calibration method according to any one of claims 1-8, characterized in that the detection terminal is implemented by the signaling comprehensive tester; the signaling comprehensive tester comprises a main control unit, a signaling interaction unit, a calibration unit, a signal measurement unit, a radio frequency signal receiving and transmitting unit and a communication interface;
The main control unit is used for controlling the dispatching of the signaling interaction unit, the calibration unit and the signal measurement unit;
the calibration unit is used for calculating a current calibration value according to the detection signal of the measured piece;
the signal measuring unit is used for acquiring system parameters according to the detection signals of the detected piece;
The signaling interaction unit is used for outputting the control instruction issued by the main control unit or the current calibration value of the calibration unit as wireless signaling content;
The radio frequency signal receiving and transmitting unit is used for receiving a detection signal and a signal to be measured of a measured piece or transmitting a wireless signal output by the signaling interaction unit;
The communication interface is used for communicating with an upper computer and outputting a control instruction, a calibration result or a measurement result.
10. The calibration system based on signaling control is characterized by comprising a detection terminal and a tested piece, wherein the detection terminal is at least connected with one tested piece, and the detection terminal and the tested piece perform data transmission through wireless signaling; the wireless signaling is data transmission through wireless data packets according to a communication standard protocol;
The detection terminal sends a calibration request frame or a measurement request frame to the measured piece;
the measured piece returns a response frame after receiving the calibration request frame, and the detection terminal receives the response frame and enters a calibration mode;
The calibration mode is used for calibrating system parameters of the measured piece, and comprises the steps of obtaining a parameter measurement value and a compensation calibration value, completing system parameter configuration, transmitting a detection signal and updating the compensation calibration value, and when the parameter measurement value meets a target calibration condition, the calibration is considered to be up to standard, and a calibration test is completed; the system parameters include control power parameters and/or frequency parameters; the parameter measurement value comprises a transmitting power intensity, a receiving power intensity, a frequency, a modulation rate or a packet length;
when entering a calibration mode, the detection terminal sends a calibration configuration frame to a tested piece, the tested piece receives the calibration configuration frame, determines calibrated system parameters and returns a response frame;
The detection terminal responds to the response frame, sends a signal request frame to the detected piece, controls the detected piece to determine the calibrated system parameters, and sends a detection signal of the system parameters to the detection terminal;
The detection terminal receives and analyzes the detection signal, and sends a calibration data frame to the detected piece according to the detection signal to calibrate the system parameters of the detected piece; the measured piece receives the calibration data frame and updates system parameters according to the content of the calibration data frame;
and transmitting a calibration data frame according to the detection signal to calibrate the system parameters of the tested piece, wherein the method comprises the following steps:
Analyzing a parameter measured value of a measured piece in the detection signal, judging whether the parameter measured value is in a target calibration area, and performing calibration compensation on a system parameter of the measured piece when the parameter measured value is not in the target calibration area;
When the measured piece is required to be measured, the measured piece returns a response frame after receiving a measurement request frame, and a detection terminal receives the response frame and enters a measurement mode;
The measuring mode is used for measuring system parameters of the measured piece, when the measuring mode is in the measuring mode, the detecting terminal controls the measured piece to complete system parameter configuration and transmit signals to be measured through wireless signaling, the detecting terminal obtains parameter measurement values after receiving the signals to be measured, and the analyzing result is uploaded to the upper computer for data display or local storage to complete measurement.
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