CN113630192A - Transponder testing method and device, electronic equipment and computer storage medium - Google Patents
Transponder testing method and device, electronic equipment and computer storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/59—Responders; Transponders
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/101—Monitoring; Testing of transmitters for measurement of specific parameters of the transmitter or components thereof
- H04B17/103—Reflected power, e.g. return loss
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- H—ELECTRICITY
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- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
Abstract
The application provides a test method and a test device for a transponder, electronic equipment and a computer storage medium, wherein the method comprises the following steps: adjusting the actual amplitude of the current output of the signal generator to a target amplitude; the target amplitude is any amplitude in a preset amplitude sequence; measuring the power corresponding to a downlink signal when the downlink signal is sent to a transponder to be tested; receiving an uplink signal fed back by a responder to be tested after receiving a downlink signal, and measuring the power corresponding to the uplink signal; judging whether inputting a preset amplitude sequence is finished or not according to the power corresponding to the downlink signal; if the input preset amplitude sequence is judged to be finished, generating the input and output characteristics of the responder to be tested according to all downlink signals and all uplink signals; performing difference value fitting on the input and output characteristics to obtain target input and output characteristics; and carrying out test calculation according to the target input and output characteristics to obtain a test result of the to-be-tested transponder. Therefore, the purpose of testing the transponder with high efficiency and high precision is achieved.
Description
Technical Field
The present disclosure relates to the field of computer technologies, and in particular, to a method and an apparatus for testing a transponder, an electronic device, and a computer storage medium.
Background
The responder is a ground positioning device in a Chinese train control system, and is installed in the middle of a line steel rail in actual construction. When a train passes by, a transponder vehicle-mounted antenna arranged at the bottom of the train head sends a high-energy 27MHz downlink excitation radio frequency signal to the transponder. The transponder converts the signal into an operating power supply to start after receiving the signal, and transmits a 4MHz uplink signal in a Frequency-shift keying (FSK) form to a transponder vehicle-mounted antenna at the bottom of the train through an operating circuit and a transponder 4MHz transmitting antenna.
When a train passes through the ground transponder, the vehicle-mounted antenna and the ground transponder horizontally move in a staggered mode, the distance between the train and the ground is greatly changed in the movement process, the train-ground signal induction range needs to be enlarged if enough information transmission quantity is maintained at a high train speed and a fixed transmission speed, and meanwhile, the circuit is prevented from being damaged due to the fact that too much energy is transmitted at an excessively close position. In order to standardize the output response of the transponder under different strength inputs when a train passes through, the input and output characteristic test items of the transponder are set in European standard and Chinese iron standard. However, existing input-output tests require that the input signal be fixed to the power shown in the table below. Because the transponder is not stable enough in the linear region, and is very sensitive to the input influence, the accuracy requirement of the input and output test is high, and the attenuation of the signal transmission link is not clear, the terminal power can be made to be as close as possible to the current power required by measurement only by repeatedly adjusting the amplitude of the source end signal. Therefore, the problems of low test efficiency and large error exist in the current transponder input and output characteristic test scheme, and the test on the transponder is further influenced.
Disclosure of Invention
In view of the above, the present application provides a method and an apparatus for testing a transponder, an electronic device, and a computer storage medium, which are used to test the transponder efficiently and with high precision.
A first aspect of the present application provides a method for testing a transponder, including:
adjusting the actual amplitude of the current output of the signal generator to a target amplitude; the target amplitude is any amplitude in a preset amplitude sequence;
measuring the power corresponding to a downlink signal when the downlink signal is sent to a transponder to be tested;
receiving an uplink signal fed back by the responder to be tested after receiving the downlink signal, and measuring the power corresponding to the uplink signal;
judging whether inputting the preset amplitude sequence is finished or not according to the power corresponding to the downlink signal;
if the input of the preset amplitude sequence is judged to be finished, generating the input and output characteristics of the to-be-tested responder according to all the downlink signals and all the uplink signals;
performing difference value fitting on the input and output characteristics to obtain target input and output characteristics;
and performing test calculation according to the target input and output characteristics to obtain a test result of the to-be-tested transponder.
Optionally, the determining whether inputting the preset amplitude sequence is finished according to the power corresponding to the downlink signal includes:
judging whether the power corresponding to all the downlink signals reaches a first threshold value in the ascending process and whether the power corresponding to all the downlink signals reaches the environmental noise power in the descending process;
if the power corresponding to all the downlink signals reaches a first threshold value in the ascending process and the power corresponding to all the downlink signals reaches the environmental noise power in the descending process, determining that the input of the preset amplitude sequence is finished;
and if the power corresponding to all the downlink signals does not reach the first threshold value in the ascending process and/or the power corresponding to all the downlink signals does not reach the environmental noise power in the descending process, determining that the input of the preset amplitude sequence is not finished.
Optionally, the method for testing a transponder further includes:
and if the preset amplitude sequence is judged not to be input, returning to execute the step of adjusting the currently output actual amplitude of the signal generator to the target amplitude.
Optionally, the input/output characteristic of the transponder to be tested is a relationship between the downlink signal and the uplink signal.
Optionally, the target amplitude is obtained by querying a preset correspondence table between signal intensity and amplitude.
A second aspect of the present application provides a test apparatus for a transponder, comprising:
the adjusting unit is used for adjusting the actual amplitude of the current output of the signal generator to a target amplitude; the target amplitude is any amplitude in a preset amplitude sequence;
the first measuring unit is used for measuring the power corresponding to a downlink signal when the downlink signal is sent to a transponder to be tested;
the second measuring unit is used for receiving an uplink signal fed back by the responder to be tested after receiving the downlink signal and measuring the power corresponding to the uplink signal;
a judging unit, configured to judge whether inputting the preset amplitude sequence is finished according to a power corresponding to the downlink signal;
a generating unit, configured to generate the input/output characteristics of the to-be-tested transponder according to all the downlink signals and all the uplink signals if the judging unit judges that the input of the preset amplitude sequence is finished;
the interpolation fitting unit is used for performing difference fitting on the input and output characteristics to obtain target input and output characteristics;
and the test unit is used for carrying out test calculation according to the target input and output characteristics to obtain a test result of the to-be-tested responder.
Optionally, the determining unit includes:
a determining subunit, configured to determine whether the power corresponding to all the downlink signals reaches a first threshold in a rising process, and whether the power corresponding to all the downlink signals reaches an environmental noise power in a falling process;
a determining unit, configured to determine that inputting the preset amplitude sequence is finished if the determining subunit determines that the powers corresponding to all the downlink signals reach a first threshold in a rising process and the powers corresponding to all the downlink signals reach an environmental noise power in a falling process;
the determining unit is further configured to determine that inputting the preset amplitude sequence is not finished if the determining subunit determines that the powers corresponding to all the downlink signals do not reach the first threshold in the ascending process and/or the powers corresponding to all the downlink signals do not reach the environmental noise power in the descending process.
Optionally, the testing apparatus for a transponder further includes:
and the activation unit activates the adjustment unit to execute the adjustment of the currently output actual amplitude of the signal generator to the target amplitude if the judgment unit judges that the input of the preset amplitude sequence is not finished.
Optionally, the input/output characteristic of the transponder to be tested is a relationship between the downlink signal and the uplink signal.
Optionally, the target amplitude is obtained by querying a preset correspondence table between signal intensity and amplitude.
A third aspect of the present application provides an electronic device comprising:
one or more processors;
a storage device having one or more programs stored thereon;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement a method of testing a transponder as defined in any of the first aspects.
A fourth aspect of the present application provides a computer storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method of testing a transponder according to any one of the first aspects.
In view of the above, the present application provides a method and an apparatus for testing a transponder, an electronic device, and a computer storage medium, where the method for testing the transponder includes: firstly, adjusting the actual amplitude of the current output of the signal generator to a target amplitude; the target amplitude is any amplitude in a preset amplitude sequence; then, when a downlink signal is sent to a transponder to be tested, measuring the power corresponding to the downlink signal; then receiving an uplink signal fed back by the responder to be tested after receiving the downlink signal, and measuring the power corresponding to the uplink signal; judging whether inputting the preset amplitude sequence is finished or not according to the power corresponding to the downlink signal; if the input of the preset amplitude sequence is judged to be finished, generating the input and output characteristics of the to-be-tested responder according to all the downlink signals and all the uplink signals; performing difference value fitting on the input and output characteristics to obtain target input and output characteristics; and performing test calculation according to the target input and output characteristics to obtain a test result of the to-be-tested transponder. Therefore, the purpose of testing the transponder with high efficiency and high precision is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of the input-output characteristics of a transponder shown in three stages;
FIG. 2 is a flow chart of a prior art I/O characteristic test;
fig. 3 is a specific flowchart of a method for testing a transponder according to an embodiment of the present application;
fig. 4 is a schematic diagram illustrating an interpolation of input and output characteristics of an transponder according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram of a hardware solution corresponding to a testing method of a transponder according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a testing apparatus for a transponder according to another embodiment of the present application;
fig. 7 is a schematic diagram of an electronic device implementing a method for testing a transponder according to another embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
It should be noted that the terms "first", "second", and the like, referred to in this application, are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence of functions performed by these devices, modules or units, but the terms "include", or any other variation thereof are intended to cover a non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements that are not explicitly listed, or includes elements inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
First, the relevant terms in the present application are explained:
FSK (Frequency Shift Key, Frequency Shift keying modulation) modulates a low-Frequency digital signal (a digital signal with a non-periodic variation of high 1 and low 0) and a high-Frequency sinusoidal signal (2 high-Frequency sinusoidal signals with one high and one low are commonly used, which represent 1 and 0 of a low-Frequency digital signal respectively) into sinusoidal signals with alternating frequencies in a time domain so as to propagate in a medium such as a free space or a transmission cable.
Transponder (Balise), terrestrial transmission unit using magnetic induction technology. The important function is to transmit data information through the air gap. The transponder is a signal device mounted on a track and communicates with an onboard device passing over it. Transponders are the generic term for active transponders and passive transponders.
The downlink excitation signal is an 27.095MHz sinusoidal signal which carries energy and is sent by a vehicle-mounted antenna, and the transponder is started by a circuit and sends an FSK signal after receiving the energy.
Uplink signals, 4MHz frequency FSK signals carrying information transmitted by the transponder.
Symbol (Symbol), time domain information represented by 1 high (or low) level in the digital signal. The symbol width is the time domain length of a single symbol.
The transponder outputs output characteristics, the input of the transponder is a downlink excitation signal sent by the vehicle-mounted antenna, the output of the transponder is an uplink signal, the transponder can serve as an input signal and convert the downlink excitation signal into a self power supply after receiving the downlink excitation signal sent by the vehicle-mounted antenna, and the transponder formally starts and outputs the uplink signal to the vehicle-mounted antenna after the downlink excitation signal received by the transponder meets a certain power condition.
The input and output characteristics of the transponder are represented as three stages according to the relative motion mode limit value and the safety and reliability requirements of the vehicle-mounted antenna on the train and the transponder fixed on the ground, as shown in fig. 1:
the first stage is called an un-starting area, the distance between the vehicle-mounted antenna and the transponder is far, the input signal is far insufficient to support the transponder circuit to normally work, and the output of the transponder is zero at the moment;
the second stage is called a linear region, the vehicle-mounted antenna is close to the transponder (the approaching and the departing processes have close ranges), at the moment, an input signal can be supplied to the transponder circuit to start and increase along with the reduction of the distance, meanwhile, the output of the transponder increases along with the increase of the input, and the input and output characteristics are similar to a linear system;
the third stage is called a saturation region, the vehicle-mounted antenna is very close to the transponder, the circuit is prevented from being damaged by the transponder due to overhigh power supply voltage, the protection circuit is started to maintain the working voltage of the normal function circuit within a small range, and the output is not increased along with the increase of the input.
The input and output characteristics of the transponder are restricted by upper and lower limit ranges in European railway standard SUBSET-085/036 and Chinese railway standard TBT 3544 and 2018 transponder transmission system test specification.
Wherein, the abscissa phi is the magnetic flux of the downlink excitation signal in the range of the receiving antenna of the transponder, which is equivalent to the input of the transponder; the ordinate Iloop is the loop current in the transponder transmitting antenna and corresponds to the output of the transponder. The key point coordinates in fig. 1 have the meanings shown in table 1.
TABLE 1
Existing input-output tests require that the input signal be fixed to the power shown in the table below. Because the transponder is not stable enough in the linear region, and is very sensitive to the input influence, the accuracy requirement of the input and output test is high, and the attenuation of the signal transmission link is not clear, the terminal power can be made to be as close as possible to the current power required by measurement only by repeatedly adjusting the amplitude of the source end signal.
TABLE 2
A flow chart of a test of input/output characteristics according to the prior art scheme is shown in fig. 2. Wherein the closed loop control loop of step 6-7-8-5 in the flow chart is adjusted at least 6 to 7 times per measurement of the input sequence, in accordance with the sensitivity of existing transponder designs, losses in the transmission link of the radio frequency signal, etc. The method increases the cycle of steps 6-7-8-5 more during testing, taking into account the loss variation of the radio frequency transmission link due to aging, etc.
In addition, in order to complete the test as soon as possible, the acceptable error of the input power measurement in step 6 in fig. 2 is ± 0.05dB, and the larger acceptable error range is used when the general accuracy of the power meter can reach 0.001dB, so as to reduce the cycle number of steps 6-7-8-5 as much as possible, thereby improving the test efficiency.
Therefore, the current transponder input-output characteristic test scheme has the problems of low test efficiency and large error. Assume that the sequence of step 2 has 28 sequences (14 sequences from low to high and then 14 sequences from high to low). Assuming that the algorithm of closed-loop control is effective, each power to be measured in the sequence corresponds to 5 cycles of steps 6-7-8-5 (if the equipment cable is aged, the cycle frequency is increased, and when the closed-loop control cannot be converged within an acceptable error in serious cases), generally, the time spent in steps 4, 5, 8 and 9 is 500ms, and the time spent in neglecting calculating and displaying the drive collection of the hardware instrument after use is as follows:
28*[500+(500+500)*5+500]＝168000ms＝168s≈2.8min。
in view of this, an embodiment of the present application provides a method for testing a transponder, as shown in fig. 3, which specifically includes the following steps:
s301, adjusting the actual amplitude of the current output of the signal generator to a target amplitude.
The target amplitude is any amplitude in a preset amplitude sequence.
Optionally, in another embodiment of the present application, the target amplitude may be, but is not limited to, obtained by querying a preset correspondence table between signal strength and amplitude.
S302, when the downlink signal is sent to the transponder to be tested, the power corresponding to the downlink signal is measured.
It should be noted that the corresponding magnetic flux can be obtained by calculation according to the power corresponding to the downlink signal, and the calculation method is very mature, which is not described herein.
And S303, receiving an uplink signal fed back by the responder to be tested after receiving the downlink signal, and measuring the power corresponding to the uplink signal.
It should be noted that the corresponding loop current can be obtained by calculation according to the power corresponding to the uplink signal, and the calculation method is very mature, which is not described herein.
S304, judging whether the input preset amplitude sequence is finished or not according to the power corresponding to the downlink signal.
Specifically, if it is determined that the input preset amplitude sequence is ended, step S305 is executed; if the input preset amplitude sequence is not finished, the process returns to step S301.
Optionally, in another embodiment of the present application, an implementation manner of step S304 specifically includes:
judging whether the power corresponding to all downlink signals reaches a first threshold value in the rising process and whether the power corresponding to all downlink signals reaches the environmental noise power in the falling process;
specifically, if it is determined that the power corresponding to all downlink signals reaches the first threshold value in the rising process and the power corresponding to all downlink signals reaches the environmental noise power in the falling process, it is determined that inputting the preset amplitude sequence is finished; and if the power corresponding to all the downlink signals does not reach the first threshold value in the rising process and/or the power corresponding to all the downlink signals does not reach the environmental noise power in the falling process, determining that the input of the preset amplitude sequence is not finished.
And S305, generating the input and output characteristics of the transponder to be tested according to all the downlink signals and all the uplink signals.
It should be noted that the input/output characteristic of the transponder is expressed as a relationship between a magnetic flux and a loop current, the magnetic flux can be calculated from the downlink signal, and the loop current can be calculated from the uplink signal, and therefore, the input/output characteristic of the transponder to be tested can also be understood as a relationship between the downlink signal and the uplink signal.
And S306, performing difference fitting on the input and output characteristics to obtain target input and output characteristics.
Since the transponder input-output characteristics are segmented, including a linear region and a saturation region. And the test through controlling the amplitude may cause the interval of each point to be uneven because the transmission link of the signal generator-attenuator-power amplifier-attenuator-transmitting antenna is slightly jittered, and in extreme cases, the interval is too large, so that interpolation fitting can be carried out after the linear region and the saturation region are identified in order to avoid the situation. As shown in fig. 4, the circle is the actual measurement dotting and the square is the interpolation point. After identifying the linear region and the saturation region, interpolation may be performed in the linear region and the saturation region, respectively, to increase the sampling test interval.
And S307, performing test calculation according to the target input and output characteristics to obtain a test result of the to-be-tested responder.
It should be noted that the interpolation fitting is more efficient than the prior art solutions. Assuming that 50 amplitudes in the preset amplitude sequence (25 increments and 25 decrements), 500ms is required for executing steps S301-S303, and since there are no multiple cycles of closed-loop control, the overall elapsed time after ignoring the elapsed time for calculation display is:
50*(500*3)＝75000ms＝75s＝1.25min。
compared with the prior art, the time taken for the 28 power point sequences is 2.8min, the interpolation fitting scheme only needs 1.25min for 50 amplitude point sequences, and the scheme does not need an acceptable power error range of Abs (pcs (i) -p (i)) <0.05dB, so that the power error is the power error of the instrument (usually about 0.001 dB).
It should be further noted that the hardware scheme for implementing the above embodiments may be, but is not limited to, the scheme diagram in fig. 5.
Wherein, as in fig. 5, the signal generator is used to generate 27.095MHz downstream excitation sinusoidal signal, and the frequency is greater than 30 MHz; the attenuator 1 is used for preventing signal recharge from being larger by 3 dB; the power amplifier amplifies the sine generated by the signal generator, and the bandwidth of the power amplifier is more than 30 MHz; the attenuator 2 is used for preventing signal recharge from being more than 3 dB; the power meter is used for calibrating the downlink energy sent by the test antenna, the bandwidth of the power meter is more than 30MHz, and the power covers-50 to +5 dBm; the test antenna is used for sending downlink energy and receiving FSK signals to equivalently replace a vehicle-mounted antenna; the low-pass filter is used for filtering 27MHz downlink signals, and the cut-off frequency of the low-pass filter is about 10 MHz; the preamplifier is used for amplifying the received FSK signal and has the characteristic of low noise; the low-pass filter is used for filtering 27MHz downlink signals, and the cut-off frequency of the low-pass filter is about 10 MHz; the power meter/frequency spectrograph is used for collecting the power of the FSK signal, the bandwidth of the power meter/frequency spectrograph is larger than 30MHz, and the power covers-50 dBm to +5 dBm.
According to the scheme, the application provides a test method of the transponder, which comprises the following steps: firstly, adjusting the actual amplitude of the current output of the signal generator to a target amplitude; the target amplitude is any amplitude in a preset amplitude sequence; then, when a downlink signal is sent to the responder to be tested, measuring the power corresponding to the downlink signal; then receiving an uplink signal fed back by the responder to be tested after receiving the downlink signal, and measuring the power corresponding to the uplink signal; judging whether inputting a preset amplitude sequence is finished or not according to the power corresponding to the downlink signal; if the input preset amplitude sequence is judged to be finished, generating the input and output characteristics of the responder to be tested according to all downlink signals and all uplink signals; performing difference value fitting on the input and output characteristics to obtain target input and output characteristics; and carrying out test calculation according to the target input and output characteristics to obtain a test result of the to-be-tested transponder. It can be seen that the present application is different from the existing test mode, by which the closed-loop control of the terminal power is avoided by the amplitude control mode of the signal generator, and a longer amplitude sequence is used for testing, and interpolation fitting is performed on the test result by more data. Because the input-output characteristics of the transponder comprise an inactivated region, a linear region and a saturation region, the linear region and the interpolation fitting can be combined to carry out the input-output characteristic test, and the data volume represented by more amplitude sequences has higher reliability than that of a power test sequence with a fixed sequence length. And then the purpose of carrying out efficient and high-precision test on the transponder subsequently is achieved.
Another embodiment of the present application provides a testing apparatus for a transponder, as shown in fig. 6, specifically including:
an adjusting unit 601, configured to adjust the actual amplitude of the current output of the signal generator to a target amplitude.
The target amplitude is any amplitude in a preset amplitude sequence.
The first measuring unit 602 is configured to measure a power corresponding to a downlink signal when the downlink signal is sent to a transponder to be tested.
The second measuring unit 603 is configured to receive an uplink signal fed back by the transponder to be tested after receiving the downlink signal, and measure power corresponding to the uplink signal.
The determining unit 604 is configured to determine whether inputting the preset amplitude sequence is finished according to the power corresponding to the downlink signal.
Optionally, in another embodiment of the present application, an implementation manner of the determining unit 604 includes:
and the judging subunit is used for judging whether the power corresponding to all the downlink signals reaches a first threshold value in the rising process and whether the power corresponding to all the downlink signals reaches the environmental noise power in the falling process.
And the determining unit is used for determining that the input of the preset amplitude sequence is finished if the judging subunit judges that the power corresponding to all the downlink signals reaches the first threshold value in the rising process and the power corresponding to all the downlink signals reaches the environmental noise power in the falling process.
The determining unit is further configured to determine that the inputting of the preset amplitude sequence is not finished if the determining subunit determines that the powers corresponding to all the downlink signals do not reach the first threshold in the rising process and/or the powers corresponding to all the downlink signals do not reach the environmental noise power in the falling process.
For specific working processes of the units disclosed in the above embodiments of the present application, reference may be made to the contents of the corresponding method embodiments, which are not described herein again.
A generating unit 605, configured to generate the input/output characteristic of the to-be-tested transponder according to all downlink signals and all uplink signals if the determining unit 604 determines that the input of the preset amplitude sequence is finished.
And an interpolation fitting unit 606, configured to perform difference fitting on the input/output characteristics to obtain target input/output characteristics.
The test unit 607 is configured to perform test calculation according to the target input/output characteristics to obtain a test result of the to-be-tested transponder.
For a specific working process of the unit disclosed in the above embodiment of the present application, reference may be made to the content of the corresponding method embodiment, as shown in fig. 3, which is not described herein again.
Optionally, in another embodiment of the present application, an implementation manner of the testing apparatus for a transponder further includes:
and an activation unit, configured to activate an adjustment unit to adjust the currently output actual amplitude of the signal generator to a target amplitude if the determination unit 604 determines that the input preset amplitude sequence is not completed.
For specific working processes of the units disclosed in the above embodiments of the present application, reference may be made to the contents of the corresponding method embodiments, which are not described herein again.
Optionally, in another embodiment of the present application, the input-output characteristic of the transponder to be tested is a relationship between a downlink signal and an uplink signal.
For specific working processes of the units disclosed in the above embodiments of the present application, reference may be made to the contents of the corresponding method embodiments, which are not described herein again.
Optionally, in another embodiment of the present application, the target amplitude is obtained by querying a preset correspondence table between signal strength and amplitude.
For specific working processes of the units disclosed in the above embodiments of the present application, reference may be made to the contents of the corresponding method embodiments, which are not described herein again.
According to the above scheme, the present application provides a testing apparatus for a transponder: firstly, the adjusting unit 601 adjusts the actual amplitude of the current output of the signal generator to a target amplitude; the target amplitude is any amplitude in a preset amplitude sequence; then, the first measurement unit 602 measures the power corresponding to the downlink signal when sending the downlink signal to the transponder to be tested; then, the second measurement unit 603 receives an uplink signal fed back by the responder to be tested after receiving the downlink signal, and measures the power corresponding to the uplink signal; the determining unit 604 determines whether the input of the preset amplitude sequence is finished according to the power corresponding to the downlink signal; if the determining unit 604 determines that the input of the preset amplitude sequence is finished, the generating unit 605 generates the input and output characteristics of the transponder to be tested according to all the downlink signals and all the uplink signals; the interpolation fitting unit 606 performs difference fitting on the input and output characteristics to obtain target input and output characteristics; the test unit 607 performs test calculation according to the target input/output characteristics to obtain a test result of the to-be-tested transponder. Therefore, the purpose of testing the transponder with high efficiency and high precision is achieved.
Another embodiment of the present application provides an electronic device, as shown in fig. 7, including:
one or more processors 701.
A storage 702 having one or more programs stored thereon.
The one or more programs, when executed by the one or more processors 701, cause the one or more processors 701 to implement a method of testing a transponder as described in any of the above embodiments.
Another embodiment of the application provides a computer storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements a method of testing a transponder as described in any of the above embodiments.
In the above embodiments disclosed in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The apparatus and method embodiments described above are illustrative only, as the flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present disclosure may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part. The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a live broadcast device, or a network device) to execute all or part of the steps of the method according to the embodiments of the present disclosure. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Those skilled in the art can make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method of testing a transponder, comprising:
adjusting the actual amplitude of the current output of the signal generator to a target amplitude; the target amplitude is any amplitude in a preset amplitude sequence;
measuring the power corresponding to a downlink signal when the downlink signal is sent to a transponder to be tested;
receiving an uplink signal fed back by the responder to be tested after receiving the downlink signal, and measuring the power corresponding to the uplink signal;
judging whether inputting the preset amplitude sequence is finished or not according to the power corresponding to the downlink signal;
if the preset amplitude sequence is judged to be input, generating the input and output characteristics of the test responder according to all the downlink signals and all the uplink signals;
performing difference value fitting on the input and output characteristics to obtain target input and output characteristics;
and performing test calculation according to the target input and output characteristics to obtain a test result of the to-be-tested transponder.
2. The method according to claim 1, wherein the determining whether inputting the preset amplitude sequence is finished according to the power corresponding to the downlink signal comprises:
judging whether the power corresponding to all the downlink signals reaches a first threshold value in the ascending process and whether the power corresponding to all the downlink signals reaches the environmental noise power in the descending process;
if the power corresponding to all the downlink signals reaches a first threshold value in the ascending process and the power corresponding to all the downlink signals reaches the environmental noise power in the descending process, determining that the input of the preset amplitude sequence is finished;
and if the power corresponding to all the downlink signals does not reach the first threshold value in the ascending process and/or the power corresponding to all the downlink signals does not reach the environmental noise power in the descending process, determining that the input of the preset amplitude sequence is not finished.
3. The test method of claim 2, further comprising:
and if the preset amplitude sequence is judged not to be input, returning to execute the step of adjusting the currently output actual amplitude of the signal generator to the target amplitude.
4. The test method of claim 1, wherein the input-output characteristic of the test transponder is a relationship between the downstream signal and the upstream signal.
5. The test method according to claim 1, wherein the target amplitude is obtained by querying a preset correspondence table between signal strength and amplitude.
6. A test apparatus for a transponder, comprising:
the adjusting unit is used for adjusting the actual amplitude of the current output of the signal generator to a target amplitude; the target amplitude is any amplitude in a preset amplitude sequence;
the first measuring unit is used for measuring the power corresponding to a downlink signal when the downlink signal is sent to a transponder to be tested;
the second measuring unit is used for receiving an uplink signal fed back by the responder to be tested after receiving the downlink signal and measuring the power corresponding to the uplink signal;
a judging unit, configured to judge whether inputting the preset amplitude sequence is finished according to a power corresponding to the downlink signal;
a generating unit, configured to generate the input/output characteristics of the to-be-tested transponder according to all the downlink signals and all the uplink signals if the judging unit judges that the input of the preset amplitude sequence is finished;
the interpolation fitting unit is used for performing difference fitting on the input and output characteristics to obtain target input and output characteristics;
and the test unit is used for carrying out test calculation according to the target input and output characteristics to obtain a test result of the to-be-tested responder.
7. The test apparatus according to claim 6, wherein the judging unit includes:
a determining subunit, configured to determine whether the power corresponding to all the downlink signals reaches a first threshold in a rising process, and whether the power corresponding to all the downlink signals reaches an environmental noise power in a falling process;
a determining unit, configured to determine that inputting the preset amplitude sequence is finished if the determining subunit determines that the powers corresponding to all the downlink signals reach a first threshold in a rising process and the powers corresponding to all the downlink signals reach an environmental noise power in a falling process;
the determining unit is further configured to determine that inputting the preset amplitude sequence is not finished if the determining subunit determines that the powers corresponding to all the downlink signals do not reach the first threshold in the ascending process and/or the powers corresponding to all the downlink signals do not reach the environmental noise power in the descending process.
8. The testing device of claim 7, further comprising:
and the activation unit activates the adjustment unit to execute the adjustment of the currently output actual amplitude of the signal generator to the target amplitude if the judgment unit judges that the input of the preset amplitude sequence is not finished.
9. An electronic device, comprising:
one or more processors;
a storage device having one or more programs stored thereon;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement a method of testing a transponder as claimed in any one of claims 1 to 5.
10. A computer storage medium, characterized in that a computer program is stored thereon, wherein the computer program, when being executed by a processor, carries out a method of testing a transponder according to one of claims 1 to 5.
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